U.S. patent application number 10/075032 was filed with the patent office on 2003-04-10 for method and apparatus for remote initiation of arinc 615 downloads.
Invention is credited to Brinkley, Roger R., Lee, David R., Mitchell, Timothy M., Price, Jerry L..
Application Number | 20030069015 10/075032 |
Document ID | / |
Family ID | 23021398 |
Filed Date | 2003-04-10 |
United States Patent
Application |
20030069015 |
Kind Code |
A1 |
Brinkley, Roger R. ; et
al. |
April 10, 2003 |
Method and apparatus for remote initiation of ARINC 615
downloads
Abstract
A method and apparatus for remotely downloading data to a
selected one of a plurality of avionics line replaceable units
(LRUs) on an aircraft. In one configuration, a method includes
transmitting a message wirelessly to a receiver on the aircraft
identifying an LRU having data to be downloaded; selectively
switching a communication path from the identified LRU to an
aircraft data services link (ADSL) dependent upon the identified
LRU; and wirelessly downloading data to the identified LRU
utilizing the selectively switched communication path.
Inventors: |
Brinkley, Roger R.;
(Woodinville, WA) ; Mitchell, Timothy M.;
(Seattle, WA) ; Price, Jerry L.; (Sammamish,
WA) ; Lee, David R.; (Renton, WA) |
Correspondence
Address: |
Mark D. Elchuk and Alan L. Cassel
Harness, Dickey & Pierce, P.L.C.
Suite 400
5445 Corporate Drive
Troy
MI
48098-2683
US
|
Family ID: |
23021398 |
Appl. No.: |
10/075032 |
Filed: |
February 12, 2002 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
60268085 |
Feb 13, 2001 |
|
|
|
Current U.S.
Class: |
455/431 ;
455/412.1; 455/419 |
Current CPC
Class: |
H04W 84/005 20130101;
H04W 84/06 20130101; H04L 67/04 20130101; H04L 2012/4028 20130101;
H04L 67/34 20130101; H04L 67/06 20130101; H04L 67/12 20130101; H04B
7/18506 20130101; G06F 8/61 20130101 |
Class at
Publication: |
455/431 ;
455/412; 455/419 |
International
Class: |
H04Q 007/20; H04M
011/10 |
Claims
What is claimed is:
1. A method for remotely downloading data to a selected one of a
plurality of avionics line replaceable units (LRUs) on an aircraft,
said method comprising: transmitting a message wirelessly to a
receiver on the aircraft identifying an LRU having data to be
downloaded; selectively switching a communication path from the
identified LRU to an aircraft data services link (ADSL) dependent
upon the identified LRU; and wirelessly downloading data from the
identified LRU utilizing the selectively switched communication
path.
2. A method in accordance with claim 1 wherein the selectively
switched communication path is an ARINC 429 communication path.
3. A method in accordance with claim 2 wherein said selectively
switching a communication path comprises selectively switching one
of a plurality of ARINC 429 communication paths utilizing a
software-controlled switch.
4. A method in accordance with claim 1 wherein said transmitting a
message wirelessly comprises transmitting the message wirelessly
utilizing a wireless spread spectrum communication link.
5. A method in accordance with claim 1 wherein said transmitting a
message wirelessly further comprises transmitting an operational
program configuration (OPC) file that contains criteria for
automated routing.
6. A method in accordance with claim 1 further comprising
triggering said wirelessly downloading data upon a triggering
condition.
7. A method in accordance with claim 6 wherein said triggering
condition is setting of a parking brake.
8. A method in accordance with claim 6 further comprising
accumulating records of wireless downloads.
9. A method in accordance with claim 1 further comprising
configuring a header file for the identified LRU to download.
10. A method in accordance with claim 1 wherein said data
wirelessly downloaded comprises operational software.
11. An apparatus for remotely downloading data to a selected one of
a plurality of avionics line replaceable units (LRUs) on an
aircraft, said apparatus configured to: receive a message
wirelessly transmitted to the aircraft identifying an LRU having
data to be downloaded; selectively switch a communication path to
the identified LRU to an aircraft data services link (ADSL)
dependent upon the identified LRU; and wirelessly download data to
the identified LRU utilizing the selectively switched communication
path.
12. An apparatus in accordance with claim 11 wherein, to
selectively switch a communication path to the identified LRU to an
aircraft data services link (ADSL) dependent upon the identified
LRU, said apparatus is further configured to selectively switch a
plurality of ARINC 429 communication paths.
13. An apparatus in accordance with claim 12 further comprising a
software-controlled switch configured to selectively switch said
ARINC 429 communication paths.
14. An apparatus in accordance with claim 11 wherein said apparatus
further comprises a wireless spread spectrum transceiver configured
to receive said message wirelessly.
15. An apparatus in accordance with claim 11 further configured to
receive an operational program configuration (OPC) file that
contains criteria for automated routing.
16. An apparatus in accordance with claim 11 further configured to
trigger said wireless download of data upon a triggering
condition.
17. An apparatus in accordance with claim 16 configured to trigger
said wireless download of data upon setting a of parking brake.
18. An apparatus in accordance with claim 16 further configured to
accumulate records of wireless downloads.
19. An apparatus in accordance with claim 11 configured to
wirelessly download operational software.
20. An apparatus for downloading data to a selected one of a
plurality of avionics line replaceable units (LRUs) onboard an
aircraft, said apparatus comprising: a wireless radio transceiver;
a communication management unit server responsive to said wireless
radio transceiver; and a remotely controllable switch responsive to
said communication management unit server to configure a data path
between said wireless radio transceiver and a selected one of said
LRUs for downloading of data.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application claims the benefit of U.S. Provisional
Application No. 60/268,085, filed Feb. 13, 2001, which is hereby
incorporated by reference in its entirety. This application is also
related to a commonly-assigned U.S. patent application of the same
inventors entitled "METHODS AND APPARATUS FOR WIRELESS UPLOAD AND
DOWNLOAD OF AIRCRAFT DATA", Attorney Docket No. 7784-000361, filed
on even date herewith, which is also incorporated by reference in
its entirety.
FIELD OF THE INVENTION
[0002] The present invention relates to communications systems, and
more particularly to methods and apparatus to facilitate loading
and acquisition of data relating to aircraft loadable
computers.
BACKGROUND OF THE INVENTION
[0003] Software loadable avionics units (i.e., line replaceable
units or LRUs) have the capability of downloading stored
information onto a diskette. Present maintenance practices call for
transferring aircraft data stored on certain LRUs onto floppy disk
media utilizing a portable or PC-based ARINC 615-3 data loader. To
transfer the stored aircraft data, a properly configured 31/4"
floppy diskette is inserted into the data loader. In some cases, a
permanently mounted airborne data loader may be used to perform
this task for an aircraft installation. For example, on Boeing 737
aircraft, flight management computers (FMCs) are capable of
downloading their stored faults onto floppy disks as described
above. On Boeing 747 aircraft, a central maintenance computer is
able to download its fault history database and an aircraft
condition monitoring system (ACMS) is capable of downloading its
stored serial stream aircraft parameters data, including up to
eight selected channels of recorded smart access recorder data and
triggered reports for the aircraft communications and reporting
system (ACARS).
[0004] Two-way communication utilizing standard ARINC 615-3
protocol is needed for all LRUs that require periodic software
updates. In at least one aircraft configuration, wires used for
this communication are routed to a multiple deck rotary switch. The
rotary switch is used by an operator to manually switch appropriate
outputs from avionics boxes to an airborne data loader or to a
connector for a portable data loader. The wiring passes from an
electronics equipment (EE) bay to a centralized flight deck
location. This configuration does not permit remote initiation of
ARINC 615-3 communication because of the need for an operator to
manually configure the communication path using the rotary switch.
However, if such initiation were possible, a central maintenance
function for the aircraft could be provided.
SUMMARY OF THE INVENTION
[0005] One configuration of the present invention therefore
provides a method for remotely downloading data to a selected one
of a plurality of avionics line replaceable units (LRUs) on an
aircraft. The method includes transmitting a message wirelessly to
a receiver on the aircraft identifying an LRU having data to be
downloaded; selectively switching a communication path from the
identified LRU to an aircraft data services link (ADSL) dependent
upon the identified LRU; and wirelessly downloading data to the
identified LRU utilizing the selectively switched communication
path.
[0006] In another configuration of the present invention, an
apparatus is provided for remotely downloading data to a selected
one of a plurality of avionics line replaceable units (LRUs) on an
aircraft. The apparatus is configured to receive a message
wirelessly transmitted to the aircraft identifying an LRU having
data to be downloaded; selectively switch a communication path from
the identified LRU to an aircraft data services link (ADSL)
dependent upon the identified LRU; and wirelessly download data to
the identified LRU utilizing the selectively switched communication
path.
[0007] In yet another configuration of the present invention, an
apparatus is provided for downloading data to a selected one of a
plurality of avionics line replaceable units (LRUs) onboard an
aircraft. The apparatus includes a wireless radio transceiver; a
communication management unit server responsive to the wireless
radio transceiver; and a remotely controllable switch responsive to
the communication management unit server to configure a data path
between the wireless radio transceiver and a selected one of the
LRUs for downloading of data.
[0008] Configurations of the present invention are useful in
facilitating the loading and acquisition of data relating to
aircraft loadable computers. In addition, certain configurations of
the present invention also permit remote initialization of ARINC
615-3 communications, because an operator is not required to
manually configure a communication path using a rotary switch
onboard an aircraft. Thus, a central maintenance function for the
aircraft can be provided.
[0009] Further areas of applicability of the present invention will
become apparent from the detailed description provided hereinafter.
It should be understood that the detailed description and specific
examples, while indicating the preferred embodiment of the
invention, are intended for purposes of illustration only and are
not intended to limit the scope of the invention.
BRIEF DESCRIPTION OF THE DRAWINGS
[0010] The present invention will become more fully understood from
the detailed description and the accompanying drawings,
wherein:
[0011] FIG. 1 is a pictorial block diagram of one configuration of
the present invention, showing a representative installation on an
aircraft.
[0012] FIG. 2 is a pictorial block diagram of a prior art avionics
system on an aircraft, provided for comparison with the pictorial
block diagram of FIG. 1.
[0013] FIG. 3 is a block diagram of a remotely controllable switch
suitable for use in the configuration of FIG. 1.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0014] The following description of the preferred embodiment(s) is
merely exemplary in nature and is in no way intended to limit the
invention, its application, or uses.
[0015] In one configuration of the present invention and referring
to FIG. 1, an aircraft 10 includes a plurality of LRUs 12,
including, for example, an aircraft condition monitoring system
(ACMS) 14, a digital flight data acquisition unit (DFDAU) 16, one
or more flight maintenance computers (FMC) 18, and an aircraft
communications and reporting system (ACARS) 20, one or more of
which require two-way communication utilizing ARINC 615-3 protocol.
Each LRU 12 communicates utilizing an ARINC 429-compatible link
(i.e., communication path) 22. Because ARINC 429 compatible links
cannot be shared, an electronic, remotely controllable switch 24
selectively switches communication paths 22. In one configuration,
switch 24 is an aircraft data services link that also provides
outputs that are used by control display units (CDUs) 26. An
airborne data loader 28 provides local data access for downloading
data to LRUs 12. Remote communication is provided via a link to a
communication management unit server 30, which provides output for
local radio communication (e.g., 802.11b spread spectrum
transceiver 32), a satellite communication transceiver 34, VHF
radio systems 36, and HF radio systems 38. Also provided in one
configuration is an additional radio communication system 40, for
example, an 802.11b spread spectrum transceiver, by which remote
communication is possible from one or more ground access points 42.
In one configuration, communication management unit server 30 is
responsive to wireless transceivers 32, 34, 36, 38 and/or 40 for
receiving data and selecting an LRU 12 to which to download data.
(As used herein, the term "transceiver" is intended to be broadly
interpreted as encompassing separate receiving and transmitting
units as well as individual units having both transmitting and
receiving functions.) Remotely controllable switch 24 is responsive
to communication management unit server 30 to configure a data path
between the wireless radio transceiver 32, 34, 36, 38 or 40 from
which the selection of the LRU was obtained, for downloading of
data.
[0016] The configuration shown in FIG. 1 is compared to the prior
art configuration of FIG. 2, which utilizes a rotary switch 44,
which is manually operated to switch communication paths 22 from
LRUs 12. Aircraft 10 requires only minimal rewiring to accommodate
the configuration represented in FIG. 1. In addition, network
server unit (NSU) 46 and server interface unit (SIU) 48 represented
in the configuration of FIG. 2 are not required in the
configuration represented in FIG. 1.
[0017] One configuration of suitable electronic, remotely
controllable switch 24 is described in U.S. Provisional Application
No. 60/268,085, filed Feb. 13, 2001, which is incorporated by
reference herein. Referring to the block diagram of FIG. 3, a
plurality of ARINC 429 inputs and outputs 22 are linked via an
ARINC 429 transceivers module 50 through software controlled
switches 52. Switches 52 are controlled by processor 54, which is
responsive to communication management unit server 30 for
controlling switches 52. Communication management unit server 30
relays instructions received by any of transceivers 32, 34, 36, 38
and/or 40. In this manner, communication paths 22 are selected so
that ARINC 615 or ARINC 615-3 downloads can take place via
transceivers 32, 34, 36, 38 and/or 40.
[0018] In one configuration of the present invention, a message is
transmitted wirelessly to a transceiver (e.g., any of transceivers
32, 34, 36, and/or 38) identifying an LRU 12 to which a download is
to be made. A communication path 22 is switched in response to this
identification by remotely controlled switch 24 to provide a
communication path, dependent upon the identified LRU 12, between
the identified LRU and an aircraft data services link comprising
switch 24 and communication management unit server 30. Data is then
wirelessly downloaded via the transceiver receiving the original
message identifying the LRU using the selectively switched
communication path. In one configuration, the selectively switched
communication path is an ARINC 429 communication path 22, and one
of a plurality of such paths 22 is switched utilizing a
software-controlled switch 52. In one configuration, the original
message identifying the LRU and the downloaded data are sent using
a spread spectrum communications link, such as one provided by
802.11b transceiver 32 or 40.
[0019] In combination with communication management unit server 30,
switch 24 comprises an aircraft data services link (ADSL). ADSL
performs a data acquisition function that utilizes existing storage
features of existing aircraft LRUs 12 such as aircraft condition
monitoring system (ACMS) 14, central maintenance computer (CMC)
(not shown in the figures) and flight maintenance computer (FMC)
18, flight control computers (FCCs) 12, and auxiliary power
unit/environmental control unit (APU ECU) 56 (shown in FIG. 1) and
requests download data conforming to ARINC 615 data load formats.
The ADSL server 30 application software provides the following
operations that can be performed on the data:
[0020] 1. On aircraft configuration management and storage. In one
configuration, this functionality is synchronized with any
configuration management and storage system in use on the ground,
such as at ground access point 42.
[0021] 2. Automatic routing via an appropriate medium, based on an
operational program configuration (OPC) file that contains criteria
for automated routing capability. The criteria include those that
specify when and under what conditions to transfer data [from] to
the aircraft [to] from a ground access point 42 via VHF radio 36,
HF radio 38, SATCOM 34, or 802.11b transceiver 32 or 40. An OPC is
treated as a software upload. Because avionics LRUs 12 can only be
loaded when on the ground, the primary communications medium used
to initiate changes to ADSL 24, 30 (or any other loadable LRU 12)
OPC is a wireless spread spectrum 802.11b communication link. This
link is coupled to the functionality of ADSL components 24, 30 such
as an avionics gateway when avionics LRUs 12 require changes to
their OPCs and to other types of loadable software. Loadable OPCs
resident in ADSL server 30 support automated transfer of download
data to aircraft 10 from ground access point 42, depending upon a
variety of trigger conditions, for example, parking brake set. In
one configuration, this automated transfer is handled by a download
task management application distributed across the components of
ADSL 24, 30, including any authorized network clients. An example
of another task that is performed by the download task management
application is the accumulation of historical records of all
automated data download events.
[0022] 3. Responses to operator-initiated requests from
authenticated clients via any of the communication paths connected
to ADSL 24, 30. Such requests may pertain to, but are not limited
to, access to data from avionics LRUs 12 without manual operator
intervention on the aircraft, synchronization tasks with associated
ground network systems 42, backup and recovery initiation, and
other network requests. The network clients may include one or more
authorized users communicating via ADSL 24, 30 communications
links, using cabin or flight deck mounted terminals, portable
digital assistants (PDAs), wireless electronic flight bags (EFB)
(which are not shown in the figures) or any number of ground
terminals 42. To remotely initiate an ARINC 615 download, a header
file (i.e., an ARINC 615 config.ldr file) intended for a target LRU
12 is configured for a download. This header file contains an
appropriate system address label (SAL) for the targeted system. A
connection to a specific computer i.e., LRU 12 must occur prior to
activating a data download in those cases in which multiple
computers having the same SAL are installed. A download task
management application informs the operator that a connection to
the appropriate LRU 12 has been established. The download task
management application is resident on the ground based system or
any other authorized network client and the avionics gateway.
[0023] The transfer of download operational software to aircraft
data services link 24, 30 is similar to the uploading of data,
except that a config.ldr header file indicates that a download is
requested and the bulk of the data flow is to LRU 12 from ADSL
server 30 application software.
[0024] It will thus be observed that configurations of the present
invention provide direct control and access to store information on
an aircraft subsystem while on the ground and within range of an
802.11b compatible access point. In at least one configuration,
access is also provided via one or more other radio communication
links, so that access can be provided even while airborne, in
appropriate cases.
[0025] The description of the invention is merely exemplary in
nature and, thus, variations that do not depart from the gist of
the invention are intended to be within the scope of the invention.
Such variations are not to be regarded as a departure from the
spirit and scope of the invention.
* * * * *