WO1998015845A1 - Automatic collision notification - Google Patents

Automatic collision notification Download PDF

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Publication number
WO1998015845A1
WO1998015845A1 PCT/GB1997/002671 GB9702671W WO9815845A1 WO 1998015845 A1 WO1998015845 A1 WO 1998015845A1 GB 9702671 W GB9702671 W GB 9702671W WO 9815845 A1 WO9815845 A1 WO 9815845A1
Authority
WO
WIPO (PCT)
Prior art keywords
collision
vehicle
radar
sensing system
prediction unit
Prior art date
Application number
PCT/GB1997/002671
Other languages
French (fr)
Inventor
Graeme Peter Smith
Original Assignee
Ford Motor Company Limited
Ford Werke Ag
Ford France S.A.
Ford Motor Company
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
Application filed by Ford Motor Company Limited, Ford Werke Ag, Ford France S.A., Ford Motor Company filed Critical Ford Motor Company Limited
Publication of WO1998015845A1 publication Critical patent/WO1998015845A1/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/123—Traffic control systems for road vehicles indicating the position of vehicles, e.g. scheduled vehicles; Managing passenger vehicles circulating according to a fixed timetable, e.g. buses, trains, trams
    • G08G1/127—Traffic control systems for road vehicles indicating the position of vehicles, e.g. scheduled vehicles; Managing passenger vehicles circulating according to a fixed timetable, e.g. buses, trains, trams to a central station ; Indicators in a central station
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/86—Combinations of radar systems with non-radar systems, e.g. sonar, direction finder
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13—Receivers
    • G01S19/14—Receivers specially adapted for specific applications
    • G01S19/17—Emergency applications
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G01S2013/9316—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles combined with communication equipment with other vehicles or with base stations
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G01S2013/9327—Sensor installation details
    • G01S2013/93271—Sensor installation details in the front of the vehicles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G01S2013/9327—Sensor installation details
    • G01S2013/93272—Sensor installation details in the back of the vehicles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G01S2013/9327—Sensor installation details
    • G01S2013/93274—Sensor installation details on the side of the vehicles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G01S2013/9327—Sensor installation details
    • G01S2013/93275—Sensor installation details in the bumper area

Definitions

  • the invention relates to an automatic collision notification system, the invention being applicable with particular advantage to motor vehicles .
  • a number of systems have recently been proposed which include an in car transmitter, arranged to emit an emergency signal in the event of an accident.
  • the emergency signal is transmitted to the emergency services, in particular the police.
  • These are known under a number of names including 'Emergency Call', 'MayDay' and ' VEMS ' .
  • Such systems typically link with signals from Global Positioning Satellites (GP) often used in in-car navigational systems, to give the emergency services the ability to pinpoint the location of the vehicle accurately.
  • GPS Global Positioning Satellites
  • Such systems emit a signal on actuation of an airbag, since this is an indicator that some impact has occurred.
  • airbags can be actuated when the accident is not severe, where there are no other road users involved, and where the attendance of the emergency services is not strictly necessary.
  • a number of radar systems have been proposed for installation in motor vehicles for detecting objects around a vehicle.
  • Transmitters and receivers are mounted upon the vehicle to detect the presence or approach of objects in a particular direction to be used to help to warn an occupant of a potential collision.
  • Such systems have been developed for collision warning and parking.
  • an improved automatic collision notification system comprising a radar sensing system including at least one radar transmitter and receiver arranged to detect the presence of an object in a pre-determined area relative to the vehicle and to detect the velocity and direction of movement of the object relative to the vehicle, a collision prediction unit coupled to the radar sensing system which calculates the impact velocity of the impending collision to provide an accident severity indicator, the collision prediction unit being coupled to an accident notifier arranged to transmit a signal receivable at a station remote from the vehicle, the signal emitted transmitting the information that a collision has occurred and the severity of the collision.
  • the system according to the invention can be provided as a separate unit to the commercially available systems or can be incorporated into the systems available for emergency Call-up on accident occurrence as an add-on providing further information.
  • the collision prediction unit also calculates the trajectory of the impact.
  • the predetermined area in relation to the vehicle in which the presence of an object is to be detected depends on the nature of the vehicle. However to be comprehensive, this will have to encompass an envelope surrounding the vehicle.
  • the system includes at least two radar transmitters and receivers, which are impulse radar transmitters and receivers .
  • the term 'impulse radar' is intended to encompass any radar signal of short radio frequency without a carrier wave, and includes radar sometimes referred to as 'broadband radar'.
  • a typical impulse radar sensing system is described in published specification O90/13048.
  • Such a system can be used to track accurately the path of an object outside the vehicle to accurately predict the potential of a collision, its likely position and time before impact.
  • the radar sensing system may be used in a vehicle, purely for use in the automatic collision notification system, the invention is applicable with particular advantage to a vehicle in which the radar sensing system is used also for providing driver information and warnings, such as a parking aid.
  • the advantage is that the same sensors are multifunctional.
  • the radar sensing system is part of a collision warning system as described in copending PCT application number GB97/01728.
  • a collision warning system as described in copending PCT application number GB97/01728.
  • Such a system is able to look around the vehicle to detect obstacles about the vehicle and to use the signals detected in a number of collision warning modes.
  • Figure 1 is a schematic illustration of a typical collision warning system
  • Figure 2 is a schematic block diagram of the automatic collision notification system
  • Figure 3 is a schematic view of the predetermined area scanned by the radar receiver; and, Figure 4 is a schematic plan view of a vehicle illustrating the position of the sensors and receivers.
  • the automatic collision notification system 1 illustrated in the drawings comprises a radar sensing system 3 including at least one radar transmitter and receiver arranged to detect the presence of an object in a predetermined area relative to the vehicle 4 and to detect the velocity and direction of movement of the object relative to the vehicle 4, a collision prediction unit 5 coupled to the radar sensing system 3 which calculates the impact velocity of the impending collision to provide an accident severity indicator, the collision prediction unit 5 being coupled to an accident notifier 7 arranged to transmit a signal receivable at a station remote from the vehicle, the signal transmitting the information that a collision has occurred and the severity of the collision.
  • collision prediction unit 5 also calculates the trajectory of the impact.
  • the radar system 3 comprises four sensors 9 shown in figure 3 mounted at the corners of the vehicle in the region of the bumper. Each sensor 9 comprises an impulse radar transmitter and receiver. This arrangement of four sensors allows the envelope around the vehicle to be monitored.
  • the radar sensing system monitors continually the zones of concern illustrated in figure 3 for intrusion by other vehicles or other obstacles.
  • the predetermined areas are front of vehicle, rear of vehicle, drivers side and passenger side.
  • the sensors 9 are used in pairs to track the trajectory of targets within their field of view. Time to impact is calculated using knowledge of relative velocities of the vehicle and target. This information is then fed to the collision prediction unit 5.
  • the location of the vehicle 4 is pinpointed by a Global Positioning Satellite 11 which produces a signal 13 part of which pinpoints the position of the vehicle which is transmitted from the vehicle 4 to a central receiving antenna 15 which transmits relevant information to the emergency services 17.
  • the collision notification system 1 is part of an existing system, VEMS (although it could equally be part of the Emergency Call or MayDay systems also available) .
  • VEMS although it could equally be part of the Emergency Call or MayDay systems also available.
  • Such a system is arranged to send a signal forming part of the signal 13 transmitted to the antenna 15, on actuation of the airbag to indicate that an accident has occurred.
  • the signal 13 also includes a signal which indicates the severity of the collision so that the emergency services are given as full a picture as possible, with the fact that an accident has occurred, an indicator of severity and the location of the accident.

Abstract

An improved automatic collision notification system (1) comprising a radar sensing system (3) including at least one radar transmitter and receiver arranged to detect the presence of an object in a predetermined area relative to the vehicle (4) and to detect the velocity and direction of movement of the object relative to the vehicle (4), a collision prediction unit (5) coupled to the radar sensing system (3) which calculates the impact velocity of the impending collision to provide an accident severity indicator, the collision prediction unit (5) being coupled to an accident notifier (7) arranged to transmit a signal (13) receivable at a station (15) remote from the vehicle (4), the signal emitted transmitting the information that a collision has occurred and the severity of the collision.

Description

AUTOMATIC COLLISION NOTIFICATION
Field of the Invention
The invention relates to an automatic collision notification system, the invention being applicable with particular advantage to motor vehicles .
A number of systems have recently been proposed which include an in car transmitter, arranged to emit an emergency signal in the event of an accident. Typically the emergency signal is transmitted to the emergency services, in particular the police. These are known under a number of names including 'Emergency Call', 'MayDay' and ' VEMS ' . Such systems typically link with signals from Global Positioning Satellites ( GPS) often used in in-car navigational systems, to give the emergency services the ability to pinpoint the location of the vehicle accurately. Typically such systems emit a signal on actuation of an airbag, since this is an indicator that some impact has occurred. However it is possible that airbags can be actuated when the accident is not severe, where there are no other road users involved, and where the attendance of the emergency services is not strictly necessary.
A number of radar systems have been proposed for installation in motor vehicles for detecting objects around a vehicle. Transmitters and receivers are mounted upon the vehicle to detect the presence or approach of objects in a particular direction to be used to help to warn an occupant of a potential collision. Typically, such systems have been developed for collision warning and parking.
Summary of the Invention
According to the invention there is provided an improved automatic collision notification system comprising a radar sensing system including at least one radar transmitter and receiver arranged to detect the presence of an object in a pre-determined area relative to the vehicle and to detect the velocity and direction of movement of the object relative to the vehicle, a collision prediction unit coupled to the radar sensing system which calculates the impact velocity of the impending collision to provide an accident severity indicator, the collision prediction unit being coupled to an accident notifier arranged to transmit a signal receivable at a station remote from the vehicle, the signal emitted transmitting the information that a collision has occurred and the severity of the collision.
Thus this system ensures that the information passed on to the emergency services is fuller and gives them a more complete picture. This could reduce the possibility of trivial call-outs and higher prioritisation for high severity accidents.
The system according to the invention can be provided as a separate unit to the commercially available systems or can be incorporated into the systems available for emergency Call-up on accident occurrence as an add-on providing further information. Preferably the collision prediction unit also calculates the trajectory of the impact.
The predetermined area in relation to the vehicle in which the presence of an object is to be detected depends on the nature of the vehicle. However to be comprehensive, this will have to encompass an envelope surrounding the vehicle.
Preferably the system includes at least two radar transmitters and receivers, which are impulse radar transmitters and receivers . In this context the term 'impulse radar' is intended to encompass any radar signal of short radio frequency without a carrier wave, and includes radar sometimes referred to as 'broadband radar'. A typical impulse radar sensing system is described in published specification O90/13048.
Such a system can be used to track accurately the path of an object outside the vehicle to accurately predict the potential of a collision, its likely position and time before impact.
Although the radar sensing system may be used in a vehicle, purely for use in the automatic collision notification system, the invention is applicable with particular advantage to a vehicle in which the radar sensing system is used also for providing driver information and warnings, such as a parking aid. The advantage is that the same sensors are multifunctional.
Preferably the radar sensing system is part of a collision warning system as described in copending PCT application number GB97/01728. Such a system is able to look around the vehicle to detect obstacles about the vehicle and to use the signals detected in a number of collision warning modes.
Brief Description of the Drawings
An automatic collision notification system in accordance with the invention will now be described, by way of example only, with reference to the accompanying drawings, in which: -
Figure 1 is a schematic illustration of a typical collision warning system;
Figure 2 is a schematic block diagram of the automatic collision notification system;
Figure 3 is a schematic view of the predetermined area scanned by the radar receiver; and, Figure 4 is a schematic plan view of a vehicle illustrating the position of the sensors and receivers.
Description of the Preferred Embodiment
The automatic collision notification system 1 illustrated in the drawings comprises a radar sensing system 3 including at least one radar transmitter and receiver arranged to detect the presence of an object in a predetermined area relative to the vehicle 4 and to detect the velocity and direction of movement of the object relative to the vehicle 4, a collision prediction unit 5 coupled to the radar sensing system 3 which calculates the impact velocity of the impending collision to provide an accident severity indicator, the collision prediction unit 5 being coupled to an accident notifier 7 arranged to transmit a signal receivable at a station remote from the vehicle, the signal transmitting the information that a collision has occurred and the severity of the collision.
Here the collision prediction unit 5 also calculates the trajectory of the impact.
The radar system 3 comprises four sensors 9 shown in figure 3 mounted at the corners of the vehicle in the region of the bumper. Each sensor 9 comprises an impulse radar transmitter and receiver. This arrangement of four sensors allows the envelope around the vehicle to be monitored.
The radar sensing system monitors continually the zones of concern illustrated in figure 3 for intrusion by other vehicles or other obstacles. The predetermined areas are front of vehicle, rear of vehicle, drivers side and passenger side. The sensors 9 are used in pairs to track the trajectory of targets within their field of view. Time to impact is calculated using knowledge of relative velocities of the vehicle and target. This information is then fed to the collision prediction unit 5.
As illustrated in figure 1, the location of the vehicle 4 is pinpointed by a Global Positioning Satellite 11 which produces a signal 13 part of which pinpoints the position of the vehicle which is transmitted from the vehicle 4 to a central receiving antenna 15 which transmits relevant information to the emergency services 17.
In this case the collision notification system 1 is part of an existing system, VEMS ( although it could equally be part of the Emergency Call or MayDay systems also available) . Such a system is arranged to send a signal forming part of the signal 13 transmitted to the antenna 15, on actuation of the airbag to indicate that an accident has occurred.
The signal 13 also includes a signal which indicates the severity of the collision so that the emergency services are given as full a picture as possible, with the fact that an accident has occurred, an indicator of severity and the location of the accident.
This helps the emergency services to provide aid quickly and efficiently without needing to await a report of the accident.

Claims

Claims
1. An improved automatic collision notification system 1 comprising a radar sensing system 3 including at least one radar transmitter and receiver arranged to detect the presence of an object in a pre-determined area relative to the vehicle 4 and to detect the velocity and direction of movement of the object relative to the vehicle 4, a collision prediction unit 5 coupled to the radar sensing system 3 which calculates the impact velocity of the impending collision to provide an accident severity indicator, the collision prediction unit 5 being coupled to an accident notifier 7 arranged to transmit a signal 13 receivable at a station 15 remote from the vehicle 4, the signal emitted transmitting the information that a collision has occurred and the severity of the collision.
2. A system according to claim 1, in which the collision prediction unit 5 also calculates the trajectory of an impact.
3. A system according to claim 1 or 2, in which the radar sensing system 3 includes at least two impulse radar transmitters and receivers .
4. A system according to any one of the preceding claims, in which the radar sensing system 3 is also used for providing driver information and warnings .
PCT/GB1997/002671 1996-10-05 1997-09-29 Automatic collision notification WO1998015845A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9620826.9A GB9620826D0 (en) 1996-10-05 1996-10-05 Automatic collision notification
GB9620826.9 1996-10-05

Publications (1)

Publication Number Publication Date
WO1998015845A1 true WO1998015845A1 (en) 1998-04-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1997/002671 WO1998015845A1 (en) 1996-10-05 1997-09-29 Automatic collision notification

Country Status (2)

Country Link
GB (1) GB9620826D0 (en)
WO (1) WO1998015845A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19934670A1 (en) * 1999-05-26 2000-12-21 Bosch Gmbh Robert Object detection system
US7227493B2 (en) 2000-02-08 2007-06-05 Cambridge Consultants Limited Methods and apparatus for obtaining positional information
US20160200249A1 (en) * 2015-01-14 2016-07-14 Yazaki North America, Inc. Vehicular multi-purpose warning head-up display
CN106067237A (en) * 2016-08-11 2016-11-02 江苏中利电子信息科技有限公司 A kind of fixed type radar early warning protection system
US10176524B1 (en) 2015-10-26 2019-01-08 Allstate Insurance Company Vehicle-to-vehicle incident information collection
US10460534B1 (en) 2015-10-26 2019-10-29 Allstate Insurance Company Vehicle-to-vehicle accident detection

Citations (6)

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Publication number Priority date Publication date Assignee Title
GB2266803A (en) * 1992-05-05 1993-11-10 Daimler Benz Ag Displaying the impending collision danger of a vehicle
US5311197A (en) * 1993-02-01 1994-05-10 Trimble Navigation Limited Event-activated reporting of vehicle location
US5515043A (en) * 1994-08-17 1996-05-07 Berard; Alfredo J. Cellular/GPS system for vehicle tracking
US5519403A (en) * 1993-11-29 1996-05-21 Motorola, Inc. Global positioning system communications multi-interface
US5555286A (en) * 1994-01-31 1996-09-10 Tendler Technologies, Inc. Cellular phone based automatic emergency vessel/vehicle location system
JPH08287386A (en) * 1995-04-17 1996-11-01 Takata Kk Vehicle accident notification system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2266803A (en) * 1992-05-05 1993-11-10 Daimler Benz Ag Displaying the impending collision danger of a vehicle
US5311197A (en) * 1993-02-01 1994-05-10 Trimble Navigation Limited Event-activated reporting of vehicle location
US5519403A (en) * 1993-11-29 1996-05-21 Motorola, Inc. Global positioning system communications multi-interface
US5555286A (en) * 1994-01-31 1996-09-10 Tendler Technologies, Inc. Cellular phone based automatic emergency vessel/vehicle location system
US5515043A (en) * 1994-08-17 1996-05-07 Berard; Alfredo J. Cellular/GPS system for vehicle tracking
JPH08287386A (en) * 1995-04-17 1996-11-01 Takata Kk Vehicle accident notification system

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Title
AJLUNI C: "ITS: THE BRIDGE TO AN INTERMODAL SOCIETY", ELECTRONIC DESIGN, vol. 43, no. 20, 2 October 1995 (1995-10-02), pages 85/86, 88, 90, 92, 94/95, XP000550495 *
PATENT ABSTRACTS OF JAPAN vol. 097, no. 003 31 March 1997 (1997-03-31) *

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19934670A1 (en) * 1999-05-26 2000-12-21 Bosch Gmbh Robert Object detection system
DE19934670B4 (en) * 1999-05-26 2004-07-08 Robert Bosch Gmbh Object detection system
US7227493B2 (en) 2000-02-08 2007-06-05 Cambridge Consultants Limited Methods and apparatus for obtaining positional information
US20160200249A1 (en) * 2015-01-14 2016-07-14 Yazaki North America, Inc. Vehicular multi-purpose warning head-up display
US10189405B2 (en) * 2015-01-14 2019-01-29 Yazaki North America, Inc. Vehicular multi-purpose warning head-up display
US10176524B1 (en) 2015-10-26 2019-01-08 Allstate Insurance Company Vehicle-to-vehicle incident information collection
US10460534B1 (en) 2015-10-26 2019-10-29 Allstate Insurance Company Vehicle-to-vehicle accident detection
US11120647B1 (en) 2015-10-26 2021-09-14 Allstate Insurance Company Vehicle-to-vehicle accident detection
US11315190B1 (en) 2015-10-26 2022-04-26 Allstate Insurance Company Vehicle-to-vehicle incident information collection
US11694487B1 (en) 2015-10-26 2023-07-04 Allstate Insurance Company Vehicle-to-vehicle accident detection
CN106067237A (en) * 2016-08-11 2016-11-02 江苏中利电子信息科技有限公司 A kind of fixed type radar early warning protection system

Also Published As

Publication number Publication date
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