Patent US6708107B2 successfully refreshed from Google Patents.
US6708107B2
Expired / Lapsed
US
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Real-time ad hoc traffic alert distribution
Assignee: Lockheed Martin Corp
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Filing: 2002-04-02
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Granted: 2004-03-16
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Expires: 2022-04-02
Abstract
Abstract A traffic characterization system and method of use for executing a traffic characterization protocol over an ad hoc communications network. Conventional in-vehicle computers and conventional wireless local area network (LAN) transceivers host the traffic characterization system and the messages generated by the system. As a traffic jam occurs, the mobile units send out traffic characterization data in a sequence activated by the content of the messages and traffic characterization protocol of the present invention. All vehicles participating in the traffic characterization system and approaching the traffic jammed area receive the characterization data and have the opportunity to route around the jam.
Inventors
- 👤 Jeremy D. Impson
- 👤 Nader Mehravari
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:54
CPC Classifications
H; H04; H04W; H04W4/00; G; G08; G08G; G08G1/00; G08G1/09; G08G1/0962; G08G1/0967; G08G1/096708; G08G1/096716; G08G1/096733; G08G1/096758; G08G1/096766; G08G1/096775; G08G1/096791; H04W84/00; H04W84/18
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
203 words
A traffic condition alert system comprising a mobile unit having electronic connection to at least one ad hoc communications network, said mobile unit having a mobile unit status; a communications system executing on said mobile unit, said communications system enabling a flow of communications messages across said at least one ad hoc communications network; a mobile unit traffic characterization data system executing on said mobile unit, said mobile unit traffic characterization data system setting said mobile unit status, said mobile unit traffic characterization data system creating, transmitting, and receiving mobile unit traffic characterization data, said flow of communications messages containing said mobile unit traffic characterization data, said mobile unit traffic characterization data having a pre-defined relationship to said mobile unit status; a mobile unit traffic characterization protocol system executing on said mobile unit, said mobile unit traffic characterization protocol system sequencing execution of said mobile unit traffic characterization data system according to said flow of communications messages and said mobile unit status; and a report system executing on said mobile unit, said report system monitoring said mobile unit status, said report system preparing an interpretation of said mobile unit status and reporting said interpretation to a user of the traffic condition alert system.
Claim 2
Dependent Claim
203 words
A traffic condition alert system comprising a mobile unit having electronic connection to at least one ad hoc communications network, said mobile unit having a mobile unit status; a communications system executing on said mobile unit, said communications system enabling a flow of communications messages across said at least one ad hoc communications network; a mobile unit traffic characterization data system executing on said mobile unit, said mobile unit traffic characterization data system setting said mobile unit status, said mobile unit traffic characterization data system creating, transmitting, and receiving mobile unit traffic characterization data, said flow of communications messages containing said mobile unit traffic characterization data, said mobile unit traffic characterization data having a pre-defined relationship to said mobile unit status; a mobile unit traffic characterization protocol system executing on said mobile unit, said mobile unit traffic characterization protocol system sequencing execution of said mobile unit traffic characterization data system according to said flow of communications messages and said mobile unit status; and a report system executing on said mobile unit, said report system monitoring said mobile unit status, said report system preparing an interpretation of said mobile unit status and reporting said interpretation to a user of the traffic condition alert system.
Claim 3
Dependent Claim
17 words
The traffic condition alert system as in claim 1 wherein said mobile unit comprises an in-vehicle computer.
Claim 4
Dependent Claim
49 words
The traffic condition alert system as in claim 1 wherein said communications system comprises: a wireless local area network (LAN) transceiver for receiving and transmitting wireless signals from said ad hoc network; and a LAN interface for converting said wireless signals to and from said flow of communications messages.
Claim 5
Dependent Claim
29 words
The traffic condition alert system as in claim 1 wherein said ad hoc communications network comprises more than one said mobile unit forming a plurality of said mobile units.
Claim 6
Dependent Claim
143 words
The traffic condition alert system as in claim 4 wherein said flow of communications messages comprises: incoming messages and outgoing messages, wherein said incoming messages and said outgoing messages include a message header, said header conforming to requirements of an ad hoc network protocol, said ad hoc network protocol enabling transmission of said outgoing communications messages over said ad hoc network to said plurality of mobile units; a message type, said message type having a pre-defined relationship to said mobile unit traffic characterization data; mobile unit location data, said mobile unit location data including latitude, longitude, and altitude of said mobile unit, said mobile unit location data gathered by a GPS system; a counter for controlling a retransmission count for said outgoing communications message; and a timestamp, said timestamp having a pre-defined relationship to a collection time of said mobile unit location data.
Claim 7
Dependent Claim
129 words
The traffic condition alert system as in claim 4 wherein said mobile unit traffic characterization data system further comprises: a communications message reception system for receiving and unpacking said incoming communications messages from said ad hoc network, said incoming messages containing said mobile unit traffic characterization data; a signal strength detection system for determining a signal strength of said incoming communications message; a vehicle monitor for determining a differential speed of said mobile unit, said differential speed having a pre-defined relationship to said mobile unit traffic characterization data; a message creation system for creating an outgoing communications message, said outgoing communications message including said mobile unit traffic characterization data; and a timer for scheduling execution of said message creation system for periodically transmitting said mobile unit traffic characterization data.
Claim 8
Dependent Claim
25 words
The traffic condition alert system as in claim 1 wherein said mobile unit status is selected from a group consisting of JAMMED and NOT JAMMED.
Claim 9
Dependent Claim
39 words
The traffic condition alert system as in claim 1 wherein said mobile unit traffic characterization protocol system further comprises: a procedure control system for controlling said sequencing; and a traffic characterization database for retaining mobile unit traffic characterization data.
Claim 10
Independent Claim
210 words
A method for processing traffic condition alerts comprising: initializing an ad hoc communications network interface, said network interface having electronic connection with a mobile unit, said mobile unit having a vehicle monitor, said vehicle monitor computing traffic characterization data; initializing a database, said database having electronic connection with said mobile unit, said database containing a mobile unit status, said mobile unit status being related to said traffic characterization data; listening for incoming mobile unit traffic characterization data messages, said incoming messages arriving from said ad hoc network; receiving said incoming messages, said incoming messages containing location- and time-tagged mobile unit traffic characterization data; processing said incoming messages according to a mobile unit traffic characterization protocol; transmitting outgoing mobile unit traffic characterization data messages periodically over said ad hoc network according to a said mobile unit traffic characterization protocol, said outgoing messages containing said mobile unit status, a location of said mobile unit, and a timestamp; updating said database according to said location- and time-tagged mobile unit traffic characterization data incoming messages; transmitting said outgoing messages when said mobile unit status is set; updating said database when said mobile unit status is set; and creating a report, said report created on demand, said report created according to said mobile unit status.
Claim 11
Independent Claim
210 words
A method for processing traffic condition alerts comprising: initializing an ad hoc communications network interface, said network interface having electronic connection with a mobile unit, said mobile unit having a vehicle monitor, said vehicle monitor computing traffic characterization data; initializing a database, said database having electronic connection with said mobile unit, said database containing a mobile unit status, said mobile unit status being related to said traffic characterization data; listening for incoming mobile unit traffic characterization data messages, said incoming messages arriving from said ad hoc network; receiving said incoming messages, said incoming messages containing location- and time-tagged mobile unit traffic characterization data; processing said incoming messages according to a mobile unit traffic characterization protocol; transmitting outgoing mobile unit traffic characterization data messages periodically over said ad hoc network according to a said mobile unit traffic characterization protocol, said outgoing messages containing said mobile unit status, a location of said mobile unit, and a timestamp; updating said database according to said location- and time-tagged mobile unit traffic characterization data incoming messages; transmitting said outgoing messages when said mobile unit status is set; updating said database when said mobile unit status is set; and creating a report, said report created on demand, said report created according to said mobile unit status.
Claim 12
Dependent Claim
44 words
The method as in claim 9 further comprising: resetting said mobile unit status setting when a plurality of traffic alert thresholds are met; and accessing at least one message timer for triggering the step of transmitting outgoing mobile unit traffic characterization data messages periodically.
Claim 13
Dependent Claim
13 words
A mobile unit for carrying out the method according to claim 9 .
Claim 14
Dependent Claim
13 words
A communications network comprising at least one node according to claim 9 .
Claim 15
Dependent Claim
26 words
Electromagnetic signals traveling over a computer network of mobile units comprising: said electromagnetic signals carrying information for the practice of the method of claim 9 .
Claim 16
Dependent Claim
16 words
A computer readable medium containing instructions for the practice of the method of claim 9 .
Claim 17
Dependent Claim
119 words
A mobile unit for processing traffic characterization data comprising: an ad hoc communications network interface having electronic connection with the mobile unit, said network interface enabling exchange of incoming and outgoing mobile unit traffic characterization data among mobile units on said network; a traffic characterization data system for receiving said incoming mobile unit traffic characterization data; a vehicle monitor for collecting internal mobile unit traffic characterization data; a mobile unit traffic characterization protocol, said mobile unit traffic characterization protocol setting a mobile unit status, said mobile unit status being a function of said incoming mobile unit traffic characterization data and said internal mobile unit traffic characterization data; and a report system for creating reports from said mobile unit status.
Claim 18
Dependent Claim
119 words
A mobile unit for processing traffic characterization data comprising: an ad hoc communications network interface having electronic connection with the mobile unit, said network interface enabling exchange of incoming and outgoing mobile unit traffic characterization data among mobile units on said network; a traffic characterization data system for receiving said incoming mobile unit traffic characterization data; a vehicle monitor for collecting internal mobile unit traffic characterization data; a mobile unit traffic characterization protocol, said mobile unit traffic characterization protocol setting a mobile unit status, said mobile unit status being a function of said incoming mobile unit traffic characterization data and said internal mobile unit traffic characterization data; and a report system for creating reports from said mobile unit status.
Claim 19
Dependent Claim
115 words
A communications message for exchanging mobile unit traffic characterization data using a mobile unit traffic characterization protocol, said message comprising: a message header, said message header formatted according to a communications protocol, a time- and location-tagged mobile unit traffic characterization data field, said mobile unit traffic characterization data field concatenated to said header to form a partial message; and a counter field for preventing system loops, said counter field concatenated to said partial message to form said communications message, said communications message formatted for electronic transmission on a communications network, said communications network connecting a plurality of mobile units one with another, said plurality of mobile units having a common understanding of said communications protocol.
Claim 20
Dependent Claim
115 words
A communications message for exchanging mobile unit traffic characterization data using a mobile unit traffic characterization protocol, said message comprising: a message header, said message header formatted according to a communications protocol, a time- and location-tagged mobile unit traffic characterization data field, said mobile unit traffic characterization data field concatenated to said header to form a partial message; and a counter field for preventing system loops, said counter field concatenated to said partial message to form said communications message, said communications message formatted for electronic transmission on a communications network, said communications network connecting a plurality of mobile units one with another, said plurality of mobile units having a common understanding of said communications protocol.
Claim 21
Dependent Claim
77 words
The communications message of claim 16 wherein said mobile unit traffic characterization field further comprises: a message type selected from a group consisting of JAMMED and NOT JAMMED; a timestamp, said timestamp having a pre-defined temporal relationship with said mobile unit traffic characterization data; a latitude, said latitude having a pre-defined latitudinal relationship with said mobile unit traffic characterization data; and a longitude, said longitude having a pre-defined longitudinal relationship with said mobile unit traffic characterization data.
Claim 22
Dependent Claim
17 words
The communications message of claim 16 wherein said communications protocol comprises an ad hoc network routing protocol.
Claim 23
Dependent Claim
133 words
The communications message of claim 16 wherein each of said plurality of mobile units comprises: a vehicle; a computer installed in said vehicle; a Global Positioning Satellite (GPS) system, said GPS system including an antenna and a GPS interface, said GPS interface providing electronic interconnection between said antenna and said computer, said computer receiving said latitude and said longitude from said antenna through said GPS interface; and a wireless local area network (LAN) system, said LAN system having electronic communication with communications network, said LAN system having electronic communication with said computer, said LAN system having a LAN receiver, said LAN system having a LAN interface, said LAN interface providing electronic interconnection between said LAN receiver and said computer, said computer receiving said communications messages from said LAN receiver through said LAN interface.
References Cited (Backward Citations)
US5164904A
Cited
US5206641A
Cited
US5428544A
Cited
US5313200A
Cited
US5428545A
Cited
US5589827A
Cited
US5592172A
Cited
US5539645A
Cited
US5621798A
Cited
US6092020A
Cited
US5899953A
Cited
US5890054A
Cited
US6249232B1
Cited
US6150961A
Cited
US20020030611A1
Cited
US20030009278A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2007-03-16 | 2007-09-15 | 2008-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2011-03-16 | 2011-09-15 | 2012-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2015-03-16 | 2015-09-15 | 2016-03-16 | $7700.00 | Window Closed / Lapsed |