U.S. patent application number 15/321843 was filed with the patent office on 2017-05-11 for a system for neck support.
This patent application is currently assigned to TWare Pte. Ltd.. The applicant listed for this patent is TWare Pte. Ltd.. Invention is credited to Sep Riang Lai, Wei Liang Lin, Keng Soon Teh, Xingyu Wang.
Application Number | 20170127858 15/321843 |
Document ID | / |
Family ID | 55019740 |
Filed Date | 2017-05-11 |
United States Patent
Application |
20170127858 |
Kind Code |
A1 |
Teh; Keng Soon ; et
al. |
May 11, 2017 |
A SYSTEM FOR NECK SUPPORT
Abstract
There is provided a neck support with a plurality of
independently controlled airbags. This may have the advantage that
the tilt, comfort and/or support of the user's neck can be adjusted
to reduce neck strain and/or the user's sleeping/waking state can
be managed according to the journey progress.
Inventors: |
Teh; Keng Soon; (Singapore,
SG) ; Lin; Wei Liang; (Singapore, SG) ; Lai;
Sep Riang; (Singapore, SG) ; Wang; Xingyu;
(Singapore, SG) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
TWare Pte. Ltd. |
Singapore |
|
SG |
|
|
Assignee: |
TWare Pte. Ltd.
Singapore
SG
|
Family ID: |
55019740 |
Appl. No.: |
15/321843 |
Filed: |
July 3, 2015 |
PCT Filed: |
July 3, 2015 |
PCT NO: |
PCT/SG2015/050196 |
371 Date: |
December 23, 2016 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
A47G 9/1045 20130101;
A47G 9/1081 20130101; A47C 7/383 20130101; A47G 9/1027
20130101 |
International
Class: |
A47G 9/10 20060101
A47G009/10; A47C 7/38 20060101 A47C007/38 |
Foreign Application Data
Date |
Code |
Application Number |
Jul 3, 2014 |
SG |
10201403838V |
Claims
1. A system for neck support comprising: a neck support collar, a
plurality of independent airbags distributed around the collar, and
a controller module configured to adjust the tilt, comfort and/or
support of a user's neck by adjusting the pressure in one or more
of the plurality of airbags.
2. The system according to claim 1, further comprising a plurality
of sensors configured to detect the tilt of the user's neck,
wherein the controller module is configured to adjust the pressure
based on one or more sensor outputs.
3. The system according to any preceding claim, further comprising
a user interface configured to communicate with the controller
module according to claim 1.
4. The system according to any preceding claim, wherein the
controller module is configured to sense the resting state of the
user and adjust the pressure accordingly.
5. The system according to claim 4, wherein the resting state of
the user is sensed based on the sensor outputs.
6. The system according to claim 4, wherein the controller module
is configured to provide music to the user depending on the resting
state of the user.
7. The system according to any preceding claim, wherein the
controller module is configured to adjust the pressure to move the
user's neck towards an upright position.
8. The system according to claim 7, wherein the plurality of
airbags comprises a pair of support airbags configured to support
different parts of the back of the user's neck and wherein upon
detecting the tilt of the user's neck towards a part, the
controller module is configured to inflate the support airbag
configured to support the part.
9. The system according to claim 7, wherein the plurality of
airbags comprises a pair of tilt correction airbags configured to
support different sides of the user's neck and wherein upon
detecting that the tilt of the user's neck towards a side is
greater than a predetermined amount, the controller module is
configured to inflate the tilt correction airbag configured to
support the side and deflate the other tilt correction airbag.
10. The system according to claim 9, wherein upon detecting that
the tilt of the user's neck towards a side is less than the
predetermined amount, the controller module is configured to
deflate both the tilt correction airbags by different amounts.
11. The system according to any preceding claim, wherein the
controller module is configured to detect that a user's neck is in
an upright position for a predetermined amount of time and upon
said detection, to adjust the pressure to allow the user's neck to
move away from the upright position.
12. The system according to any preceding claim, wherein a
circumference of the neck support collar is adjustable to fit the
user's neck.
13. The system according to any preceding claim, wherein the neck
support collar comprises: a main support unit; and an outer sleeve
covering the main support unit, wherein the outer sleeve comprises
height adjustment pads adjustable to fit the user's neck
length.
15. The system according to claim 2, wherein each of the sensors is
a six DOF MEMS.
16. The system according to claim 15, further comprising a frame
incorporated with the neck support collar, the frame being
configured to allow mounting of at least two six DOF MEMS.
17. The system according to claim 16, wherein the frame is
configured to maintain a constant alignment of the at least two six
DOF MEMS.
18. The system according to claim 13, wherein the main support unit
is configured to be adjustable during use.
19. The system according to claim 13, wherein the outer sleeve
further comprises a plurality of magnets and a fastener device.
20. The system according to claim 13, wherein the main support unit
includes air channels.
21. A user interface configured to communicate with the controller
module according to claim 1.
Description
FIELD OF THE INVENTION
[0001] The present invention relates to a system for neck support
(neck support system).
BACKGROUND OF THE INVENTION
[0002] Typically, for travellers trying to sleep during travel
there are a limited number of choices for neck support. For example
inflatable or soft U shaped neck pillows may be used although they
may not provide adequate support. This may cause neck strain,
because the head rolls to the side and/or falls forward, and
premature waking if the pain becomes unbearable.
[0003] Current neck pillows also do not vary the support provided
to the user in relation to travel circumstances. This aspect is
important given the large variety of travel circumstances which are
available to users, and given that using existing neck pillows is
typically viewed to be a hassle.
SUMMARY OF THE INVENTION
[0004] In general terms, the invention proposes a neck support with
a plurality of independently controlled airbags. This may have the
advantage that the tilt, comfort and/or support of the user's neck
can be adjusted to reduce neck strain and/or the user's
sleeping/waking state can be managed according to the journey
progress.
[0005] There is provided a system for neck support comprising: a
neck support collar, a plurality of independent airbags distributed
around the collar, and a controller module configured to adjust the
tilt, comfort and/or support of a user's neck by adjusting the
pressure in one or more of the plurality of airbags. The system can
further comprise a plurality of sensors configured to detect the
tilt of the user's neck, whereby the controller module is
configured to adjust the pressure based on one or more sensor
outputs. The system can also further comprise a user interface
configured to communicate with the controller module. It is
preferable that a circumference of the neck support collar is
adjustable to fit the user's neck. Each of the sensors can be a six
DOF MEMS.
[0006] It is preferable that the controller module is configured to
sense the resting state of the user and adjust the pressure
accordingly, whereby the resting state of the user is sensed based
on the sensor outputs.
[0007] Preferably, the controller module is configured to provide
music to the user depending on the resting state of the user, and
the controller module is configured to adjust the pressure to move
the user's neck towards an upright position.
[0008] It is also preferable that the plurality of airbags
comprises a pair of support airbags configured to support different
parts of the back of the user's neck and whereby upon detecting the
tilt of the user's neck towards a part, the controller module is
configured to inflate the support airbag configured to support the
part.
[0009] Preferably, the plurality of airbags comprises a pair of
tilt correction airbags configured to support different sides of
the user's neck and whereby upon detecting that the tilt of the
user's neck towards a side is greater than a predetermined amount,
the controller module is configured to inflate the tilt correction
airbag configured to support the side and deflate the other tilt
correction airbag. Upon detecting that the tilt of the user's neck
towards a side is less than the predetermined amount, the
controller module is configured to deflate both the tilt correction
airbags by different amounts.
[0010] It is preferable that the controller module is configured to
detect that a user's neck is in an upright position for a
predetermined amount of time and upon said detection, to adjust the
pressure to allow the user's neck to move away from the upright
position.
[0011] Preferably, the neck support collar comprises a main support
unit; and an outer sleeve covering the main support unit, whereby
the outer sleeve comprises height adjustment pads adjustable to fit
the user's neck length. The main support unit is preferably
configured to be adjustable during use and can include air
channels.
[0012] The system can preferably also further comprise a frame
incorporated with the neck support collar, the frame being
configured to allow mounting of at least two six DOF MEMS and also
to maintain a constant alignment of the at least two six DOF
MEMS.
[0013] The outer sleeve can preferably further comprise a plurality
of magnets and a fastener device.
[0014] In another aspect, there is provided a user interface
configured to communicate with the controller module as mentioned
in the preceding paragraphs.
BRIEF DESCRIPTION OF THE DRAWINGS
[0015] FIG. 1 is a photo showing a neck support collar of a neck
support system according to a first embodiment of the present
invention,
[0016] FIGS. 2(a) to 2(r) are schematic views of the neck support
collar of FIG. 1 and alternative embodiments,
[0017] FIGS. 3(a) to 3(i) are a series of screen shots of the
Powernapp application for controlling the neck support collar of
FIG. 1,
[0018] FIG. 4 are screen shots of the Powernapp application in a
variant of the embodiment,
[0019] FIG. 5 illustrates a method of operation for the neck
support system,
[0020] FIGS. 6(a) to 6(c) are photos showing alternative
embodiments of a neck support collar,
[0021] FIG. 7 illustrates an exploded view of the neck support
collar,
[0022] FIGS. 8(a) to 8(c) are schematic views of an alternative
configuration of sensors used in the neck support collar of FIG.
1,
[0023] FIGS. 9(a) to 9(b) illustrate how movement of the sensors of
FIG. 8 is analysed,
[0024] FIGS. 10(a) to 10(b) illustrate how the sensors in FIG. 8
are used in the neck collar of FIG. 1,
[0025] FIG. 11 illustrates positions of the sensors of FIG. 8 in
relation to a user's body during use, and
[0026] FIG. 12 illustrates a detailed version of how the sensors in
FIG. 8 are used in the neck collar of FIG. 1.
DETAILED DESCRIPTION
[0027] The present invention provides a neck pillow which is
portable and looks like a scarf, and also intelligently adapts the
support provided to the user in relation to travel circumstances.
The support can also provide relief for static/strained necks.
[0028] An example embodiment includes a neck support collar 200 as
shown in FIG. 1 and a user interface in the form of a smart phone
having a Bluetooth antenna. The user interface may alternatively be
a system integrated into the vehicle the user is travelling on. The
neck support collar 200 comprises a controller module (which will
be elaborated later). This controller module comprises a Bluetooth
antenna configured to communicate with the Bluetooth antenna of the
smart phone. In use, the user runs an application (Powernapp
application) on the smart phone to control the neck support collar
200 via the Bluetooth communication between the antennas.
[0029] FIGS. 2(a)-2(i) illustrate the neck support collar 200 in
greater detail.
[0030] As shown in FIG. 2(a), the neck support collar 200 comprises
a main support unit 201 with an adjustable clip 252 connected to
one of its ends. The main support unit 201 can be bent to form a
generally circular structure and when the main support unit 201 is
in this bent state, the adjustable clip 252 is engageable with the
other end of the main support unit 201. The clip 252 can be
adjusted to secure the neck support collar 200 around a user's neck
so as to provide sufficient support for the user's neck.
[0031] A part of the main support unit 201 is formed of
compressible material 201a. An elastic strap 203 is arranged
through the compressible material 201a, with each end of the
elastic strap 203 connected to an airbag (either the left support
airbag or the right support airbag to be discussed later on). A
portion of the elastic strap 203 forms a loop (held by an adjusting
element 204) at the back of the main support unit 201. When the
loop of the elastic strap 203 is pulled (while holding onto the
adjusting element 204), the compressible material 201a is
compressed, thereby decreasing the length of the main support unit
201 (or in other words, decreasing the circumference of the
generally circular structure when the main support unit 201 is in
the bent state). When the loop of the elastic strap 203 is released
through the adjusting element 204 (while holding on to the
adjusting element 204), the compressible material 201a expands,
thereby allowing the circumference of the generally circular
structure to increase. In this embodiment, the circumference of the
generally circular structure can be adjusted by .+-.150 mm.
[0032] As shown in FIGS. 2(b) and 2(c), the main support unit 201
is covered with an outer sleeve 205. The outer sleeve 205 is
designed to provide height adjustment features to cater for
different neck lengths. This is done by inserting height adjustment
pads 206 into the outer sleeve 205 as shown in FIGS. 2b and 2c.
These height adjustment pads 206 increase the thickness of a part
of the neck support collar 200, thereby adjusting the height of the
neck support collar 200. In particular, a user can insert these
height adjustment pads 206 into the outer sleeve such that when the
neck support collar is wrapped around his/her neck, these pads 206
abut his/her chin, providing greater comfort for the user. The
outer sleeve 205 also comprises embedded headphone speakers (not
shown) and an audio jack for connecting these speakers to the smart
phone via a wire. Alternatively, the headphones can be connected
via the Bluetooth connection with the smart phone. This allows
music from the smart phone to be played to the user from the
embedded headphone speakers.
[0033] As shown in FIGS. 2(d)-2(g), the main support unit 201
comprises a power switch 207 located on the adjustable clip 252.
The power switch 207 has a length of 35 mm and a width of 14 mm,
and comprises a top casing and a bottom casing. The bottom casing
includes an extended portion that is arranged to go through the
adjustable clip 252 to engage with the top casing. The switch 207
is preferably as slim as possible and in this embodiment, the
bottom casing (including the extended portion) has a thickness of 3
mm whereas the top casing has a thickness of 10 mm.
[0034] On a surface of the top casing, there is located an ON/OFF
switch and embossed plus/minus signs. A user can use these
plus/minus signs to increase or decrease the air pressure in one or
both of the left and right support airbags.
[0035] Referring to FIGS. 2(h) and 2(i), the main support unit 201
further includes a controller module 202 (which may be turned off
using the above-mentioned power switch 207 when not in use to
conserve battery power). The controller module 202 comprises a
casing with a battery module, a Bluetooth antenna, a processor, a
memory in it. The main support unit 201 further comprises two left
diaphragm pumps 206 and two right diaphragm pumps 208, two left
solenoid valve pairs 210, two right solenoid valve pairs 212 (each
pair comprises a valve A and a valve B). Each valve 210, 212
comprises air pressure sensors. Four independently controlled
airbags are distributed about the neck support collar 200. These
include a left support airbag 214 and a right support airbag 216, a
left tilt correction airbag 218 and a right tilt correction airbag
220. The left and right support airbags 214, 216 are used for
supporting the back of the user's neck whereas the left and right
tilt correction airbags 218, 220 are used for supporting the sides
of the user's neck. Sensors in the form of a left accelerometer 222
and a right accelerometer 224 are located in the upper bladders of
the neck support collar 200 to detect the neck tilt. The main
support unit 201 also includes a further sensor in the form of a
center accelerometer (not shown in FIG. 2(h) or 2(i)) positioned
such that when a user wears the neck collar 200, this center
accelerometer is located at the back of the user's neck. The center
accelerometer serves to measure a tilt angle of the body so as to
compensate the measurement of the neck tilt angles. More
specifically, when a user wearing the neck support collar 200 tilts
his/her neck towards the left accelerometer 222, the left
accelerometer 222 measures the angle of this left neck tilt with
respect to the longitudinal axis of the user whereas the center
accelerometer measures the angle at which the user's body is tilted
relative to the longitudinal axis. Similarly, when the user tilts
his/her neck towards the right accelerometer 224, the right
accelerometer 224 measures the angle of this right neck tilt with
respect to the longitudinal axis of the user whereas the center
accelerometer measures the angle at which the user's body is tilted
relative to the longitudinal axis. In each case, the measured angle
of the neck tilt (either left or right neck tilt) is offset by the
measured angle of the user's body tilt to provide a compensated
neck tilt angle. In particular, the compensated neck tilt angle is
obtained by subtracting the measured angle of the neck tilt from
the measured angle of the body tilt. This offset is performed as
the controller module 202 is configured to adjust the pressure
level based on the user's neck tilt alone.
[0036] Referring to FIG. 8, an alternative configuration of sensors
which can be used in the neck support collar 200 is shown. Instead
of the left accelerometer 222, the right accelerometer 224 and the
center accelerometer, only an upper six degree of freedom (DOF)
MEMS (includes tri-axis accelerometer and tri-axis gyroscope) 802
and a lower six DOF MEMS 804 is deployed in the configuration.
[0037] With regard to each six DOF MEMS, when in a static mode, the
tri-axis accelerometer defines a coordinate system with reference
to gravity and the sensor chip orientation. It is able to measure
movement angles between x, y, z axes defined by an accelerometer
sensor chip and gravity direction accurately. By adding a tri-axis
gyroscope to the tri-axis accelerometer, it is able to measure the
movement angles even when the sensor chip is moving.
[0038] Typically, a six DOF MEMS can output gravity vector or
quaternion, which can describe the coordinate system the MEMS is
forming. By comparing the difference of coordinates of the same
vector (gravity vector) of two MEMS, an angle between the two
sensors is obtainable. Thus, when two MEMS are attached along a
plane of an object, an extent of depth and direction of bending can
be obtained.
[0039] FIG. 11 shows respective positions of the upper six DOF MEMS
802 and the lower six DOF MEMS 804 when used in the neck support
collar 200 (not shown).
[0040] Referring to FIG. 9, there are illustrations of a coordinate
system XYZ being rotated to coordinate system X'Y'Z' by the
following two steps:
[0041] a) Rotate around the y-axis of system XYZ for angle .beta.
(XYZ to X''Y''Z''); b) Rotate around the z-axis of system XYZ for
angle .alpha. (X''Y''Z'' to X'Y'Z').
[0042] The respective angles .alpha. and .beta. may be determined
in the following manner.
[0043] The coordinate transfer matrix from system XYZ to system
X'Y'Z' is:
v = M v ' T ##EQU00001## M = [ cos .alpha. cos .beta. sin .alpha.
cos .beta. sin .beta. - sin .alpha. cos .alpha. 0 - cos .alpha. sin
.beta. - sin .alpha. sin .beta. cos .beta. ] ##EQU00001.2##
[0044] By defining a vector with coordinate (a, b, c) in XYZ and
(a', b', c') in X'Y'Z', in order to evaluate the rotation angle
.alpha. and .beta., we can substitute in the transfer equation:
{ a = cos .alpha. cos .beta. a ' + sin .alpha. cos .beta. b ' + sin
.beta. c ' b = - sin .alpha. a ' + cos .alpha. b ' c = - cos
.alpha. sin .beta. a ' - sin .alpha. sin .beta. b ' + cos .beta. c
' ( 1 ) ##EQU00002##
[0045] By letting q=a' cos .alpha.+b' sin .alpha. (2), we get:
{ q 2 + b 2 = a '2 + b '2 a 2 + c 2 = q 2 + c '2 ##EQU00003##
[0046] From the equations directly above, we can determine q.
(Compared to actual sensor readings, the resultant q using the
equations directly above may be different, thus an accuracy of q
may depend on the actual situation.)
[0047] Subsequently, from equation (1) and (2) it is possible to
obtain the angle .alpha. and the angle .beta. using the other
equations. Referring to FIG. 11, when two six DOF MEMS are attached
at different locations of an object, and the object undergoes
bending, the two six DOF MEMS are measuring the same
vector--gravity vector in two different coordinate systems. By
applying the mathematical equations described in the preceding
paragraphs, it becomes possible to define rotational steps
according to a desired application, and correspondingly obtain the
rotation angles that are desired. In the context of the present
invention, particularly determining tilting of a user's neck, neck
tilting is defined as a two-step rotation from a neutral spine
position of neck:
[0048] a) Rotate front or back by an angle .beta.;
[0049] b) Define an axis horizontally pointing from back of the
user's head to a front of the user's head and rotate around this
axis by an angle .alpha..
[0050] Correspondingly, both .alpha. and .beta. are able to be
determined in the manner as described in the preceding
paragraphs.
[0051] It should be appreciated that when the alternative
configuration of two six DOF MEMS are used in the neck support
collar 200, it is imperative for the two six DOF MEMS to be aligned
with each other and with the user's spinal column. However,
attaching devices on an airbag or on cloth brings forth some
difficulty in relation to alignment of the devices even when exact
alignment is not required. That is the reason why a frame 1000 is
used in the neck support collar 200. The material of the frame 1000
should be light weight, flexible (so that it will not restrict
motion of tilting), and resistant to breakage (because the frame
1000 is expected to undergo regular twisting). Polypropylene (PP)
is one of the possible material that can be used for the frame
1000.
[0052] The upper six DOF MEMS 802 and the lower six DOF MEMS 804
are attached to the frame 1000, preferably using respective
mounts/holders. The frame 1000 is configured to be located at a
position where the upper six DOF MEMS 802 and the lower six DOF
MEMS 804 are aligned with each other and with the user's spinal
column. As such, the frame 1000 is attached to a central portion of
the neck support collar 200. The neck support collar 200 is
attached at an inner side of an outer scarf. When the neck support
collar 200 is not in use, the frame 1000 can be kept in a flat
configuration which also keeps the upper six DOF MEMS 802 and the
lower six DOF MEMS 804 aligned to each other.
[0053] When the user putting on the neck support collar 200, the
neck support collar 200 will consequently undergo stretching, thus
correspondingly aligning the upper six DOF MEMS 802 and the lower
six DOF MEMS 804 to the spinal column of the user. During use of
the neck support collar 200, a design and material of the neck
support collar 200 enables, the frame 1000 to wrap around user's
neck whilst maintaining the alignment of the upper six DOF MEMS 802
and the lower six DOF MEMS 804 to each other.
[0054] It should be appreciated that by using the frame 1000 in the
neck support collar 200, positions of the upper six DOF MEMS 802
and the lower six DOF MEMS 804 are maintained at the user's upper
neck and back, and this facilitates accurate determination of neck
tilting in a dynamic situation. Furthermore, the middle part of the
frame 1000 provides a flexible structure for rotation, which
advantageously provides a large measuring range. FIG. 12 shows in
detail how the frame 1000 is used in the neck support collar
200.
[0055] The neck support collar 200 uses a 4-channel embedded
pneumatic system whereby a first tubing connects a right diaphragm
pump 212 and a right solenoid valve pair 208 with the right support
airbag 216, a second tubing connects a left diaphragm pump 210 and
a left solenoid valve pair 206 with the right tilt correction
airbag 220, a third tubing connects a right diaphragm pump 212 and
a right solenoid valve pair 208 with the left support airbag 214
and a fourth tubing connects a left diaphragm pump 210 and a left
solenoid valve pair 206 with the left tilt correction airbag 218.
Each solenoid valve pair 206, 208 comprises a valve A and a valve
B. The valve A serves to open the channel to pump air into the
corresponding airbag whereas the valve B serves to release the air
from the corresponding airbag. The tubings comprise springs so that
bending of the tubings will not substantially block the passing of
air through the tubings. Further, the tubings are preferably as
long as possible (in view of the amount of space available in the
neck support collar 200) as having longer tubings help to reduce
pump noise. The pumps 206, 208 and valves 210, 212 are comprised in
a casing that helps to protect the wires of the pumps and prevent
sharp edges of the pumps from impacting the user. The pumps are
operated by a DC voltage but may alternatively be operated by a PWM
voltage.
[0056] FIGS. 2(j)-2(h) illustrate aspects of an alternative
embodiment of the main support unit 201 which relate to user
comfort adjustments of the neck support collar 200. To allow for
comfort adjustability of the neck support collar 200, at least one
size adjustment strap 150 is looped through the main support unit
201 in a manner that when pulled, the airbags in the main support
unit 201 will move towards the center. An L-shaped feature 160 at
the ends of the at least one adjustment strap 150 aid in preventing
a lower portion 170 of the main support unit 201 from slipping
outwards, while maintaining a slimness of the at least one
adjustment strap 150.
[0057] Furthermore, a plurality of V-shaped troughs 180 provided
along a top edge 185 of the main support unit 201 also enable size
adjustment/comfort of the neck support collar 200. An adjustment
buckle 190 for the at least one size adjustment strap 150 is also
shown. The adjustment buckle 190 is positioned in a manner which
enables easy user access for adjustment of the neck support collar
200.
[0058] Referring to FIGS. 2(l) to 2(m), a plurality of magnets 50
which are embedded within the outer sleeve 205 are used to secure
ends 52, 54 of the neck support collar 200 during use. The ends 52,
54 are easier to attach together using the magnets 50 compared to
using zips or fasteners, particularly when the area of attachment
is at the neck area where visibility of the area is limited without
use of a mirror. In addition, the magnetic attractive forces are
strong enough to secure the ends of the neck support collar 200
together when the airbags are inflated and weight is applied on the
airbags. The magnets 50 are configured for the ends 52, 54 to
attach to each other when the user brings the ends 52, 54 together.
Visual indicators 56 can be used to indicate the ends 52, 54. Once
the ends 52, 54 are attached to one another, the user can move the
attached ends 52, 54 to a fastener device 58 to secure the attached
ends 52, 54 to the outer sleeve 205 (as shown in FIG. 2(n)). A
switch module 20 protrudes out at for easy access by users to
view/control/toggle the pressure levels of the airbags.
[0059] FIG. 2(o) shows how the casings are clamped onto the airbags
along its center parting line, so that a portion of the casings are
embedded within the inflated airbags. This aids in reducing an
overall thickness of the airbag when integrated with electronics.
FIG. 2(p) shows how an alternative configuration of pump 30 and
valve 32 modules are separately mounted near the ends 53, 55 of the
main support unit 201 so as to evenly distribute the weight and
size of the electronics mounted on the airbag for comfort of the
user. It should be noted that the housings are mounted on the
airbag such that there is an airbag channel 25 to provide
cushioning so that the user will not feel the hard casing pressing
against their body. Furthermore, the casings are also wrapped with
a soft foam sleeve layer to provide cushioning against the body and
to minimise the amount of hard plastic felt by the user during
use/when holding it (FIG. 2(q)).
[0060] Referring to FIG. 2(r), an airbag portion of the main
support unit 201 is configured to provide comfort and support to
the head of the user when the head is tilted backwards, forward,
leftward or rightward. Specifically, air channels are specifically
designed to support back of head, area behind ears, side of face
and the chin. It should be appreciated that neck support pillows
currently in the market typically do not comfortably support the
users chin and prevent the user's head from falling forward.
Furthermore, the air channels also include heat seals which are
configured to allow the air channels to flex out more when closer
to the user's head so that it is more comfortable. In addition, the
main support unit 201 is provided with space allocations for
mounting of the casings as mentioned earlier. A center portion of
the airbag is designed to not inflate so as to allow the size
adjustment fold.
[0061] Referring to FIG. 7, it should be appreciated that the main
support unit 201 is configured to hold/conceal the tubings and
cables in the neck support collar 200. Without the main support
unit 201, the tubings and cables may have to run along the airbags,
which would create issues with regard to storing the neck support
collar 200 as it would be difficult to fold/deflate the airbags
without bending (ie. producing kinks) the tubings.
[0062] FIGS. 3(a)-3(i) illustrate the "Powernapp application" in
this document) in greater detail.
[0063] FIGS. 3(a)-3(i) pieced together form a complete picture.
FIG. 3(a)-FIG. 3(i) may be pieced together using the alphabets
associated with the lines and arrows in these figures.
[0064] In particular, FIGS. 3(a)-3(i) illustrates how the Powernapp
application establishes a connection with the neck support collar
200. As shown in FIGS. 3(a)-3(i), the Powernapp application home
screen 302 comprises a connection icon 304 at the top-left hand
corner. When a user turns on the Powernapp application, a check is
performed to determine if the Bluetooth connection of the smart
phone is on. If the Bluetooth connection is not on, the user is
prompted to turn this connection on. If the Bluetooth connection is
on, the smart phone scans for the presence of neck support collars
200 within the range of the connection. As shown in FIGS.
3(a)-3(i), more than one neck support collar 200 may be found (in
particular, the neck pillows are named "Powernapp1", "Powernapp2",
etc. in FIGS. 3(a)-3(i)). A user then selects his/her neck support
collar 200 from the list of neck support collars 200 found by
tapping on the name of his/her neck support collar. Upon the user's
selection, a pop-up screen appears prompting the user to enter the
password or PIN associated with his/her neck support collar 200. If
the password or PIN entered by the user is incorrect, an error
message appears. Otherwise, the Powernapp application connects
(i.e. is paired) with the user's neck support collar 200. With this
connection, the user can rename his/her neck support collar 200 or
disconnect (un-pair) this neck support collar 200 from the
Powernapp application.
[0065] FIGS. 3(a)-3(i) shows how a user can control the music
played to him/her via the headphone speakers embedded in the neck
support collar 200 using the Powernapp application. As shown in
FIGS. 3(a)-3(i), the Powernapp application home screen 302 also
comprises a MUSIC control. When the user taps on this MUSIC
control, a MUSIC CONTROL screen 306 appears. This MUSIC CONTROL
screen 306 comprises a plurality of control buttons allowing the
user to select the song to be played, pause the playing of the
music or perform other actions to control the music. When the user
no longer wishes to adjust the settings of the music, the user can
hide the MUSIC CONTROL screen 306 by tapping anywhere outside the
MUSIC CONTROL screen 306.
[0066] FIGS. 3(a)-3(i) shows how a user can control the support
provided by his/her neck support collar 200. As shown in FIGS.
3(a)-3(i), the Powernapp application home screen 302 also comprises
a SUPPORT PRESSURE control. The SUPPORT PRESSURE control includes a
plus sign and a minus sign. The user can increase or decrease the
air pressure in one or both of the left and right support airbags
214, 216 by tapping on the plus sign or the minus sign. Further,
when the user first taps on the SUPPORT PRESSURE control, a
pressure calibration screen 308 is brought up prompting the user to
calibrate the embedded pneumatic system in the neck support collar
200. This calibration is elaborated below.
[0067] In order to accurately measure the neck tilt angle, the
reference position, which is when the user's head is upright, has
to be set. This is because the embedded accelerometers (222, 224
and the central accelerometer) in the neck support collar 200 may
not be in an ideal position due to folding of the main support unit
201 after storage or usage of the neck support collar 200. This may
affect the accuracy of the accelerometers and hence, it is
preferable if the accelerometers are calibrated before starting the
use of the neck support system. In particular, when the user first
taps on the SUPPORT PRESSURE control, the user is prompted to place
his/her head in an upright position and tap "Set position" on the
pressure calibration screen 308 to start the calibration. The
pressure calibration screen 308 includes a calibration bar 370 that
displays the degree to which the user's neck is currently tilted.
The calibration bar 370 is arranged with a marker and has LEFT and
RIGHT signs located at each end. The positioning of the marker
exactly in the middle of the calibration bar 370 between the LEFT
and RIGHT signs indicates to the user that the user's head is
upright. If, from the positioning of the marker, the user notices
that his/her head is not upright, the user should place his/her
head in an upright position before tapping on "Set position". The
Powernapp application collects the accelerometer readings in real
time. When the user taps on "Set Position", the Powernapp
application stores the readings of the left, right and center
accelerometers at that instance as left, right and center sensor
offset respectively. The readings of these left, right and center
accelerometers collected subsequently will then be adjusted by
their respective left, right and center sensor offsets. More
specifically, the offsets will be subtracted from the respective
readings.
[0068] FIGS. 3(a)-3(i) shows how a user can adjust the settings of
the Powernapp application. In particular, the Powernapp application
home screen 302 comprises a "Settings" control 310 at the top right
hand corner. Tapping on this control 310 brings up a "Settings"
control screen 312. On this screen 312, the user can choose whether
the audio should be decreased at deep rest, whether to wake with
music and/or to wake with the smart phone vibrating.
[0069] FIGS. 3(a)-3(i) shows how a user can pre-set the wake time
based on the duration he/she wants to rest. As shown in FIGS.
3(a)-3(i), the Powernapp application home screen 302 also comprises
a "Sleep" control (this can alternatively be labelled as "Rest")
314.
[0070] When a user taps on this "Sleep" control 314, a wake time
setting screen 316 appears with two further controls, namely, a
"Destination" control and a "Duration" control. To pre-set the wake
timing based on the duration he/she wants to rest, the user taps on
the "Duration" control which would then bring up a further screen
with a slider control. The user can then use this slider control to
adjust the duration he/she wants to rest. After this is done, the
user taps on the "Ok" button on the screen and the Powernapp
application returns to the home screen 302. At the home screen 302,
a green light together with a counter shows up on the "Sleep"
control, with the counter indicating the amount of time left to the
wake timing. To change the duration of sleep, the user can again
tap on the "Sleep" control which will bring up the wake time
setting screen 316 with the "Destination" and "Duration" controls.
The user can then tap on the "Duration" control to adjust the
duration of sleep as before. Alternatively, the user can delete all
settings by tapping on a cross beside the "Duration" control.
[0071] FIGS. 3(a)-3(i) shows how a user can pre-set the wake time
based on the destination he/she wants to go. Similarly, the user
selects the "Sleep" control 314 on the home screen 302.
[0072] However, instead of selecting the "Duration" control on the
wake timing setting screen 316, the user selects the "Destination"
control. The user is then prompted to switch on 3G, Wifi, GPS
and/or any other mobile network localization tool to improve the
localization accuracy. In particular, the user is prompted via a
pop-up message having a "Settings" button which when tapped, would
bring the user to the phone settings screen. When this is done or
if the user decides to skip this step (by tapping on the "Skip"
button or by simply allowing the message to fade away after 3
seconds instead of tapping on the "Settings" button), a further
screen for setting the user's destination appears. This further
screen comprises a pre-loaded map and a search box. The user can
search for his/her destination in the pre-loaded map by typing the
name of this destination in the search box or by pressing and
holding on the destination in the map. If there is only one
destination that matches the user's input, a route from the user's
current location to the destination is shown on the pre-loaded map.
If there are multiple destinations matching the user's input, a
route from the user's current location to the nearest matching
destination is shown on the pre-loaded map. In this case, a "Result
List" button also appears. The use can tap on this "Result List"
button to access the list of all the matching destinations. From
the list, the user can tap on his/her desired destination and the
route shown on the pre-loaded map is updated to show the route from
the user's current location to the user's desired destination. The
user is then brought to another screen on which the user can set
the wake time in terms of the distance from the destination (i.e.
awakening distance).
[0073] The default awakening distance is 800 m but the user can
adjust this via a slider control. After the user is done with this,
he or she taps on the "Ok" button on the screen and is brought back
to the home screen 302. At the home screen 302, a green light
appears on the "Sleep" control 314 and the awakening time is
indicated below the "Sleep" control 314. Similarly, the awakening
time may be adjusted by tapping on the "Sleep" control 314 and then
the "Destination" control or the user may delete all settings by
tapping on the cross beside the "Destination" control.
[0074] In a variant of this embodiment, the user can instead set
the wake time in terms of the length of time before reaching
his/her destination. In this variant, the Powernapp application
informs the user of the duration of the journey, the user sets a
length of time (awakening duration) lower than the duration to set
the wake time. For example, if the user sets the length of time to
be 1 hour, the Powernapp application will wake the user up (by
music or phone vibration) 1 hour before reaching the destination.
This is shown in FIG. 4 where the default length of time from the
destination is 15minutes but the user can adjust this via a slider
control. After the user is done with this, the user taps on the
"Next" button on the screen and is brought back to the home screen.
Similarly, at the home screen, a green light appears on the "Sleep"
control and a counter indicating the amount of time left to the
wake time is located below the "Sleep" control. Similarly, the user
can adjust this awakening duration or can use another way to set
the wake time.
[0075] As shown in FIGS. 3(a)-3(i), after pre-setting the wake
timing based on either the duration of rest or the distance from
the destination, the user can change the mode of pre-setting the
wake timing. This is done by tapping on the "Sleep" control on the
home screen 302 and either the "Duration" control or the
"Destination" control on the wake time setting screen 316. Upon the
user performing these steps, a screen pops up asking the user to
confirm that he/she wants to change the mode of pre-setting the
wake timing. A warning message is also provided to the user. This
warning message informs the user that the previous settings would
be overwritten if the user proceeds. The user then performs the
same steps as those described above for setting the wake timing.
Upon the user doing so, the new settings would overwrite the
previous settings.
[0076] FIGS. 3(a)-3(i) shows the awakening screen 350 that will
appear when the wake timing is reached. This screen 350 will appear
simultaneously with either the smart phone vibrating and/or the
music playing depending on the user's settings. Further, the screen
350 will comprise a message with an animated background and a
"Next" button. When the user taps on the "Next" button, a summary
screen appears. The summary screen comprises a "Detailed Report"
button which when tapped, brings up a further screen showing
details of the user's sleep (e.g. duration of deep-rest etc.).
[0077] FIG. 5 illustrates a method of operation 500. Three modes
are shown: non-rest mode 502, light-rest mode 504 and deep-rest
mode 506.
[0078] When the Powernapp application is first turned on by the
user and has paired with the controller module 202, the embedded
pneumatic system is calibrated in the manner described above with
reference to FIG. 3(a)-FIG. 3(i).
[0079] After the user enables the neck support collar 200 using the
Powernapp application (i.e. after the user has set the wake time in
the manner as described above), the user can either lock the screen
of the smart phone or wait for the screen to lock automatically.
Once the screen is locked, the controller module 202 enters from
the non-rest mode 502 to the light rest mode 504 and the counter
for the duration the user wants to rest starts. During the light
rest mode, calming music is played to the user. In this embodiment,
the music is only played if it is activated by the user when the
controller module 202 is in the non-rest mode.
[0080] Further, in the light rest mode, the controller module 202
adjusts the pressure of the airbags to minimize and accommodate the
user's neck tilt. In particular, the controller module 202 utilises
the left and right accelerometers 222, 224 and the center
accelerometer outputs to calculate a compensated neck tilt angle in
the manner as described above. Two mechanisms, namely the just
left/just right mechanism and the tilt correction mechanism start
simultaneously, once the neck support collar 200 is enabled. Both
these mechanisms keep increasing the pressure of one or more of the
airbags until the head is in an upright position.
[0081] The just left/just right mechanism utilizes the compensated
neck tilt angle obtained every 10 seconds. If the compensated neck
tilt angle is greater than a threshold and the tilt is detected by
the left accelerometer (i.e. the user's neck is tilting towards the
left), the left support airbag 214 is inflated by a predetermined
increment. If the compensated neck tilt angle is greater than the
threshold and is measured by the right accelerometer (i.e. the
user's neck is tilting towards the right), the right support airbag
216 is inflated by a predetermined increment. The predetermined
increments are set by the user using the Powernapp application,
more specifically, the user can choose a level of 1-5 where
selecting different levels increases the pressure by different
amounts. Inflating the left/right airbags upon detecting the tilt
of the user's neck helps move the user's neck back to the upright
position. If the compensated tilt angle obtained at a particular
minute is less than the threshold, this indicates that the user's
neck is close to the upright position and thus, none of the airbags
is inflated. However, if for an extended duration, the compensated
tilt angle obtained is less than the predetermined threshold, the
threshold is reduced. This is because the user may also experience
neck strain if his/her neck has remained close to the upright
position for an extended period of time. In this embodiment, the
initial threshold used is 6.75.degree. and the threshold is reduced
by a predetermined amount whenever the compensated tilt angle
obtained is less than the threshold for an extended duration. This
continues until the threshold reaches a predetermined value.
[0082] With the tilt correction mechanism, the support pressure is
adaptive to the tilt of the user's head, only providing support at
where the head is tilting to while deflating the airbag at the
other side. This allows the user to be more comfortable (as there
is no constant enveloping feeling). This hence maximises support
and comfort at the same time.
[0083] In particular, the tilt correction mechanism utilizes the
compensated neck tilt angle obtained every 5 minutes. If the
compensated neck tilt angle is greater than 9.degree. and is
measured by the left accelerometer, the left tilt correction airbag
218 is inflated by 0.755 kPa and the right tilt correction airbag
220 is deflated completely. If the compensated neck tilt angle is
greater than 9.degree. and is measured by the right accelerometer,
the right tilt correction airbag 220 is inflated by 0.755 kPa and
the left tilt correction airbag 218 is deflated completely.
[0084] Similar to the just left/just right mechanism, the tilt
correction mechanism has features to discourage the user's neck
from being close to the upright position for too long. In
particular, if the compensated neck tilt angle is smaller than
9.degree. and is measured by the left accelerometer, the left tilt
correction airbag 218 is deflated by 0.755 kPa and the right tilt
correction airbag 220 is deflated completely. If the compensated
neck tilt angle is smaller than 9.degree. and is measured by the
right accelerometer, the right tilt correction airbag 220 is
deflated by 0.755 kPa and the left tilt correction airbag 218 is
deflated completely.
[0085] The pressure sensors of the valves 210, 212 are used to
monitor the pressure in the left and right support airbags. In
particular, these pressure sensors are used to measure the pressure
of the airbags initially and every time an airbag is inflated or
deflated, and the measured pressure values for all the airbags are
stored. This allows the above mechanisms (tilt correction, just
left/just right) to inflate or deflate the airbags by a specific
amount as described above.
[0086] Using the pressure sensors, the pressure of the airbags are
also measured continuously or periodically. If the pressure of any
of the airbags is less than the respective most recently stored
pressure value (this may occur due to a leak in the airbag), the
pressure of the airbag is adjusted to this most recently stored
value. However, such compensation measures may affect the user's
comfort and therefore, these compensation measures are only carried
out over a predetermined period of time e.g. 15 seconds after an
adjustment of the pressure in one or more of the airbags.
[0087] Ten minutes after the light rest mode starts, the controller
module 202 enters from the light rest mode 504 to the deep rest
mode 506. In the deep rest mode 506, the controller module 202
continues to adjust the pressure in the airbags to minimize and
accommodate the user's neck tilt as per in the light rest mode 504.
However, additionally, the music is dimmed 10% per minute, so that
after 10 minutes the music is completely off.
[0088] After rest or once the wake time is reached, the controller
module 202 will enter the non-rest mode 502, unlocking the screen
of the smart phone. As such, music will be played again (if the
user has selected to wake with music). If the user has also (or
instead) selected to wake with the smart phone vibrating, the smart
phone will vibrate when the wake time is reached. During the
journey, the controller module 202 can detect the waking states of
the user, and re-enter the light rest mode. More specifically, when
the user's smart phone screen is unlocked, the controller module
202 will enter the non-rest mode and upon detecting the user's
smart phone screen being locked, the controller module 202 will
enter the light rest mode.
[0089] The operations of the left/right mechanism, and the tilt
correction mechanism can be operated on the neck support collar 200
even when the neck support collar 200 is not connected to the
smartphone application.
[0090] FIG. 7 shows an exploded view of the neck support collar
200, where the main support unit 201 is coupled/engageable with the
outer sleeve 205.
[0091] Various modifications would be apparent to one skilled in
the art.
[0092] For example, the outer sleeve 205 covering the main support
unit 201 of the neck support collar 200 can be replaced by other
types of sleeves 205 such as those shown in FIG. 6. In particular,
FIG. 6 shows how the outer sleeve 205 may be replaced by a
fashionable and wearable scarf.
[0093] Further, there may be more or less than four airbags in the
neck support collar. The sensors also need not be in the form of
accelerometers. Also, more sensors may be included in the neck
support collar to detect if the user's neck or body is leaning
towards other directions (other than to the sides), for example, if
the user's neck or body is leaning forward or backwards. These
sensors may also work with further airbags to minimize the user's
tilt in these other directions.
[0094] Thresholds and/or timings different from those mentioned
above for the just left/just right mechanism and the tilt
correction mechanism can alternatively be used for these
mechanisms.
[0095] In an alternative embodiment, the pumps may be PWM (pulse
width modulation)--controlled pumps operated by a PWM voltage. The
speed of such pumps in pumping the airbags can be controlled and
hence, the resulting air pressure of the airbags can be closer to
the desired values.
[0096] During the journey, the controller module 202 can detect the
waking states of the user, and re-enter the light rest mode. In one
embodiment, if the user wakes up before the wake time is reached,
this user's waking state can be detected using sensors in the neck
support collar 200. For example, since a person tends to stretch
his/her neck and/or body after waking up, the controller module 202
can monitor the sensors in the neck support collar 200 to detect
unexpected rotation or motion of the user's neck and/or body as an
indication that the user is awake.
[0097] Upon detecting that the user is awake (via unlocking of the
smart phone, sensors or any alternative method), music may be
played to help the user get back to rest.
[0098] Also, instead of entering the non-rest mode, the controller
module 202 may instead enter the light-rest mode upon detecting
that the user is awake.
[0099] Further, in the light-rest mode, music need not be dimmed in
the manner described in the above embodiment. Instead, the
controller module 202 can determine if the user is in deep rest
based on the output of the sensors in the neck support collar 200.
For example, if no unexpected rotation or motion is detected via
the sensors after a predetermined period of time (e.g. 20 minutes),
this may indicate that the user is approaching deep rest.
Therefore, the music can be dimmed (or even completely turned off)
after the predetermined period of time.
[0100] The pressure sensors of the valves 210, 212 are used to
monitor the pressure of the left and right support airbags. Instead
of using the plus/minus signs to adjust the pressure in the
airbags, a user may select an airbag and input a pressure level for
the airbag. The pressure in the selected airbag will then be
increased until it reaches the user's input level (as determined
based on the pressure sensors output).
[0101] Finally, it should be appreciated that the present invention
is able to provide: [0102] reliable and customisable neck support
via controls on the Powernapp application or via a smartphone app;
[0103] neck support which adapts to the user's comfort and travel
circumstances; [0104] functionality which is able to automatically
relieve static/strained necks; and [0105] portability with
desirable aesthetics which are non-obtrusive and appear like
typically clothing accessories.
* * * * *