Patent
Method and apparatus for detecting fault conditions in a vehicle data recording device to detect tampering or unauthorized access
Reads0
Chats0
TLDR
In this article, a system and method for detecting fault conditions within a vehicle recording device is described, where a recording device disposed within the vehicle is used to collect vehicle operation data produced by the one or more vehicle sensors.Abstract:
A system and method for detecting fault conditions within a vehicle recording device are disclosed herein. The fault detection technique may be implemented in a vehicle in which are incorporated one or more vehicle sensors for monitoring one or more operational parameters of the vehicle. A recording device disposed within the vehicle is used to collect vehicle operation data produced by the one or more vehicle sensors. The fault detection technique of the invention contemplates storing a current time value at regular intervals during periods in which the recording device is provided with a source of main power. Time differences are determined between consecutive ones of the stored time values, and the time differences compared to a predetermined maximum value. A power loss fault condition is registered when at least one of the time differences exceeds the predetermined maximum value. In a preferred implementation an indication of the existence of the power loss fault condition is transmitted to a central control station. Fault detection may also be effected within a vehicle recording device by repeatedly storing a cumulative value of an operational parameter registered by a sensor unit incorporated within the vehicle. The last stored cumulative value is compared to a cumulative value currently registered the sensor unit, and difference value is determined therebetween. A fault condition is indicated when the difference value exceeds a predetermined maximum value. Again, an indication of the existence of the fault condition may then be transmitted to a central control station.read more
Citations
More filters
Patent
Internet-based vehicle-diagnostic system
Larkin Hill Lowrey,Matthew J. Banet,Bruce D. Lightner,Diego Borrego,Chuck Myers,Wade Williams +5 more
TL;DR: In this paper, a system for monitoring a vehicle that includes a wireless appliance in electrical contact with an in-vehicle computer is presented, where the appliance is configured to collect diagnostic data from the computer and send out the incoming data packet over the same network to modify the communication software.
Patent
System for monitoring vehicle efficiency and vehicle and driver perfomance
Paul C. Jenkins,David V. Deal,Thomas G. Cuthbertson,James W. Morton,Andrew D. Smith,David R. Hoy,Gerald W. Egeberg +6 more
TL;DR: In this paper, a commercial vehicle fleet management system which integrates a vehicle on-board computer, precise positioning system, and communication system to provide automated calculating and reporting of jurisdictional fuel taxes, road use taxes, vehicle registration fees, and the like.
Patent
Electronic tire management system
Gordon E. Hardman,John W. Pyne,Molly A. Hardman,David A. Przygocki,Coombs David C,Paul B. Wilson,Ronald C. Grush,Philip B. Loudin,Floyd Brett A +8 more
TL;DR: In this article, an electronic tire maintenance system is provided for measuring a parameter of a device at a first location, which includes a sensor for measuring the device parameter and generating a data signal representing the measured parameter.
Patent
Driver activity and vehicle operation logging and reporting
TL;DR: In this article, a method for logging and reporting driver activity and vehicle operation includes identifying a driver of a vehicle, recording operating data with an on-board recorder that is hard-wired to an engine control module, coupled to a mileage sensing system, and linked to a global navigation satellite system.
Patent
System and method for monitoring and improving driver behavior
TL;DR: In this article, the system monitors selected vehicle parameters while a vehicle is being driven, and detects one or more vehicle operation violations by comparing the selected vehicle parameter to predetermined thresholds, and a mentoring message is provided to the driver if the threshold is exceeded.
References
More filters
Patent
Vehicle monitoring and recording system
John E. Juhasz,Hansel O Williams +1 more
TL;DR: In this article, a device monitoring and recording system for on-board vehicle monitoring of operating engine parameters is described, where a plurality of sensors for sensing operating parameters of the engine and for generating data signals in response thereto, a data processing unit for receiving the data signals and a portable data link for extracting the processed data.
Patent
Configurable vehicle monitoring system
TL;DR: In this article, a configurable vehicle monitoring device is disclosed that provides two discrete levels of access to configuration routines, one at full access configuration level and the other at a limited configuration level.
Patent
System for accurately determining the mileage traveled by a vehicle within a state without human intervention
TL;DR: In this paper, a system and method for monitoring and recording the mileage a truck travels within a particular state including a GPS receiver, an odometer, and a memory device which contains state boundary information and a processor for determining on a continual basis whether the position information received from the GPS receiver is in a specific state boundary and for recording mileage of the truck when the position and state boundary comparison determines that a change in state boundaries has occurred.
Patent
Digital tachograph system with digital memory system
TL;DR: A digital tachograph system includes a vehicle unit operative to detect vehicle performance characteristics such as vehicle speed, elapsed trip distance, engine rpm, total engine revolutions, total fuel consumption, rate of fuel consumption and the like as a function of time.
Patent
Monitoring and recording system for vehicles
TL;DR: In this article, a system adapted to be carried on board a vehicle, such as a heavy duty truck operating on an interstate basis, wherein various operational and reference parameters of the vehicle are monitored and are recorded onto a recording medium, which is removable from the system at the end of a trip, with the data recorded thereon being usable to produce a printout of the monitored parameters.