CA2201593A1 - Method and apparatus for detecting fault conditions in a vehicle data recording device - Google Patents

Method and apparatus for detecting fault conditions in a vehicle data recording device

Info

Publication number
CA2201593A1
CA2201593A1 CA002201593A CA2201593A CA2201593A1 CA 2201593 A1 CA2201593 A1 CA 2201593A1 CA 002201593 A CA002201593 A CA 002201593A CA 2201593 A CA2201593 A CA 2201593A CA 2201593 A1 CA2201593 A1 CA 2201593A1
Authority
CA
Canada
Prior art keywords
recording device
vehicle
time differences
fault conditions
data recording
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002201593A
Other languages
French (fr)
Other versions
CA2201593C (en
Inventor
Thomas F. Doyle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qualcomm Inc
Original Assignee
Thomas F. Doyle
Qualcomm Incorporated
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US08/316,746 external-priority patent/US5586130A/en
Application filed by Thomas F. Doyle, Qualcomm Incorporated filed Critical Thomas F. Doyle
Publication of CA2201593A1 publication Critical patent/CA2201593A1/en
Application granted granted Critical
Publication of CA2201593C publication Critical patent/CA2201593C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C5/00—Registering or indicating the working of vehicles
    • G07C5/008—Registering or indicating the working of vehicles communicating information to a remotely located station
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C5/00—Registering or indicating the working of vehicles
    • G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
    • G07C5/0841—Registering performance data
    • G07C5/085—Registering performance data using electronic data carriers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/005—Testing of electric installations on transport means
    • G01R31/006—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks
    • G01R31/007—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks using microprocessors or computers

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Traffic Control Systems (AREA)
  • Recording Measured Values (AREA)

Abstract

A system and method for detecting fault conditions in a recording device (38) disposed within a vehicle (12) having one or more vehicle sensors (48) for monitoring one or more operational parameters of the vehicle (12). The recording device (38) is used to collect vehicle operation data produced by the sensors (48). One implementation of the fault detection technique involves the storing of 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. An indication of the existence of the power loss fault condition may be communicated to a central control station (18) by the recording device (38).
CA002201593A 1994-10-03 1995-10-03 Method and apparatus for detecting fault conditions in a vehicle data recording device Expired - Fee Related CA2201593C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/316,746 US5586130A (en) 1994-10-03 1994-10-03 Method and apparatus for detecting fault conditions in a vehicle data recording device to detect tampering or unauthorized access
US08/316,746 1994-10-03
PCT/US1995/013205 WO1996010807A1 (en) 1994-10-03 1995-10-03 Method and apparatus for detecting fault conditions in a vehicle data recording device

Publications (2)

Publication Number Publication Date
CA2201593A1 true CA2201593A1 (en) 1996-04-11
CA2201593C CA2201593C (en) 2006-12-12

Family

ID=37561052

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002201593A Expired - Fee Related CA2201593C (en) 1994-10-03 1995-10-03 Method and apparatus for detecting fault conditions in a vehicle data recording device

Country Status (1)

Country Link
CA (1) CA2201593C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111198889A (en) * 2018-11-16 2020-05-26 浙江宇视科技有限公司 Data additional recording method and device
CN113063607A (en) * 2021-04-20 2021-07-02 潍柴动力股份有限公司 Method and system for setting ready state under extreme condition
CN113467413A (en) * 2021-06-16 2021-10-01 深圳市道通科技股份有限公司 Method, detection equipment and detection system for detecting automobile fault

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111198889A (en) * 2018-11-16 2020-05-26 浙江宇视科技有限公司 Data additional recording method and device
CN111198889B (en) * 2018-11-16 2023-08-18 浙江宇视科技有限公司 Data complement method and device
CN113063607A (en) * 2021-04-20 2021-07-02 潍柴动力股份有限公司 Method and system for setting ready state under extreme condition
CN113063607B (en) * 2021-04-20 2022-07-15 潍柴动力股份有限公司 Method and system for setting ready state under extreme condition
CN113467413A (en) * 2021-06-16 2021-10-01 深圳市道通科技股份有限公司 Method, detection equipment and detection system for detecting automobile fault
CN113467413B (en) * 2021-06-16 2022-10-11 深圳市道通科技股份有限公司 Method, detection equipment and detection system for detecting automobile fault

Also Published As

Publication number Publication date
CA2201593C (en) 2006-12-12

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Legal Events

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