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GB2265062A - Vehicle collision warning system - Google Patents

Vehicle collision warning system Download PDF

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Publication number
GB2265062A
GB2265062A GB9205059A GB9205059A GB2265062A GB 2265062 A GB2265062 A GB 2265062A GB 9205059 A GB9205059 A GB 9205059A GB 9205059 A GB9205059 A GB 9205059A GB 2265062 A GB2265062 A GB 2265062A
Authority
GB
United Kingdom
Prior art keywords
vehicle
signal
range
speed
driver
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.)
Withdrawn
Application number
GB9205059A
Other versions
GB9205059D0 (en
Inventor
Andrew Timothy Codd
Gary Ray Marchant
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB9205059A priority Critical patent/GB2265062A/en
Publication of GB9205059D0 publication Critical patent/GB9205059D0/en
Publication of GB2265062A publication Critical patent/GB2265062A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q5/00—Arrangement or adaptation of acoustic signal devices
    • B60Q5/005—Arrangement or adaptation of acoustic signal devices automatically actuated
    • B60Q5/006—Arrangement or adaptation of acoustic signal devices automatically actuated indicating risk of collision between vehicles or with pedestrians
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/50—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking
    • B60Q1/525—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking automatically indicating risk of collision between vehicles in traffic or with pedestrians, e.g. after risk assessment using the vehicle sensor data
    • B60Q1/535—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking automatically indicating risk of collision between vehicles in traffic or with pedestrians, e.g. after risk assessment using the vehicle sensor data to prevent rear-end collisions, e.g. by indicating safety distance at the rear of the vehicle
    • 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
    • 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
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/50—Systems of measurement based on relative movement of target
    • G01S13/58—Velocity or trajectory determination systems; Sense-of-movement determination systems
    • 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
    • G01S2013/9325—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles for inter-vehicle distance regulation, e.g. navigating in platoons
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

A radar module fitted to a moving vehicle senses both the range and relative speed of vehicles approaching from behind. The electrical signal containing both range and relative speed information is processed by a small computer. The range is given by the signal amplitude, and the speed by its frequency. The information is compared to the recommended speed/ stopping distance data which is stored in the computer. The result of the comparison controls the activation of visual/audible alarms at the output of the system. The system runs continuously from 'power-up'. <IMAGE>

Description

VEHICLE COLLISION WARNING INDICATOR This invention relates to a system giving advanced warning of possible vehicle collision.
The sensor of the system is fitted to the rear of any road vehicle and detects the presence of a vehicle approaching from behind. The sensor output signal representing relative velocity and range, is processed by a microcomputer which controls the warning signal. The warning signal type is subject to approval by the Department of Transport (D.O.T.).
Nowadays drivers pay little heed to 'braking distances' to be maintained between vehicles travelling at different road speeds and conditions. The guidelines, which were set down in the D.O.T.'s 'Highway Code' many years ago may need reappraisal since the advent of safer, sophisticated braking systems. However the fact is that the increasing density of high speed traffic warrants the implementation of higher standards in road safety. 'Pile-Ups' and 'Headto-Tail' collisions have statistically become more likely.
The proposed automatic warning system shall provide continuous monitoring for the drivers of vehicles in high speed traffic whether their sustained relative speed and distance between vehicles allows sufficient safety margin when effecting an evasive manouvre or an emergency stop.
The functional parts of the invented system are now described with reference to the following illustrations: Figure (i): System objects and their inter-relationship (flow diagram) (ii): Sectional elevation showing operating environment.
(iii): Plan view of 'Protection Zone' at various speeds.
(iv): The following driver's view as he enters the 'Zone at various speeds.
Referring to figure (i), the system's objects are split into two main groups: The first group is implemented with analogue electronic hardware, its function being to process/condition the analogue signal output from the radar module. This signal is sinusoidal.
The frequency of the signal represents the relative velocity of an approaching vehicle.
The amplitude of the signal represents the distance between the radar and the approaching vehicle.
The second group is implemented with digital electronic hardware and could in fact be in the form of a small microcomputer. Here the function is to convert the analogue radar signal into its digital counterpart, process the digital signal and appropriately produce control outputs for a warning display unit and/or an audible warning device.
First group objects: Radar: This module emits (microwave) radiation which can be reflected by the approaching vehicle: the reflected wave 'beats' with the transmitted at an audio frequency proportional to the relative velocity between transmitter and reflector. Range can be determined from the amplitude of the received signal.
Filter/Signal Conditioning: The radar signal is 'high-pass' filtered in order to discriminate between fast and slow moving objects: - low frequency signals from slow moving objects and other extraneous electrical noises are rejected.
- higher frequency signals from faster moving objects are passed.
Second group objects: Sample Frequency and Amplitude: The frequency of the signal (relative speed) is measured using electronic counters and the amplitude (distance) is measured using analogue-digital signal conversion.
Frequency processing: This is a software task to select the recommended stopping distance corresponding to the relative speed from a speed/stopping distance table stored in computer memory.
Amplitude processing: This software task calculates the actual distance.
Comparator: This is a software task to compare actual distance (A.D.) against recommended stopping distancetR.S.D.): If A.D. is less than R.S.D. : Trigger warning display If A.D. is greater than R.S.D. : No warning, continue sampling.

Claims (1)

  1. (1) Any vehicle safe following distance warning system fitted to a vehicle whose output is either a visual or audible signal.
    (2) Any detection system (as mentioned in Claim (1)) fitted to a vehicle whose output also includes an audible alarm to the driver of that vehicle.
    (3) Any electronic system which samples the signal from a radar module, processes the signal to trigger an audible signal to the driver and/or a visual, audible signal to the driver of the following vehicle.
    (4) Any device fitted to a vehicle that senses the speed/range of other vehicles by radar module and can directly effect the driving controls of that vehicle.
    (5) Any detection system which has a manual override which activates a warning message indicates in a situation where a vehicle is 'On Tow' or in a situation where a vehicle is at the end of a motorway traffic jam.
GB9205059A 1992-03-09 1992-03-09 Vehicle collision warning system Withdrawn GB2265062A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9205059A GB2265062A (en) 1992-03-09 1992-03-09 Vehicle collision warning system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9205059A GB2265062A (en) 1992-03-09 1992-03-09 Vehicle collision warning system

Publications (2)

Publication Number Publication Date
GB9205059D0 GB9205059D0 (en) 1992-04-22
GB2265062A true GB2265062A (en) 1993-09-15

Family

ID=10711739

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9205059A Withdrawn GB2265062A (en) 1992-03-09 1992-03-09 Vehicle collision warning system

Country Status (1)

Country Link
GB (1) GB2265062A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995020502A1 (en) * 1994-01-29 1995-08-03 Thomas Bleiner Vehicle signal-indicating device
GB2307810A (en) * 1995-12-02 1997-06-04 Roy Michael Ashley Parking aid
CN102765348A (en) * 2012-08-03 2012-11-07 东莞市中镓半导体科技有限公司 Laser fog lamp with vehicle distance safety function
CN106080375A (en) * 2016-06-24 2016-11-09 联想(北京)有限公司 A kind of information processing method and the vehicles

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2001822A (en) * 1977-07-29 1979-02-07 Nissan Motor Anti-collision radar system provided with circuitry for monitoring driver's ability to safely control vehicle
WO1980001782A1 (en) * 1979-02-26 1980-09-04 Collision Avoidance Systems Anti-collision vehicular radar system
EP0043396A1 (en) * 1980-07-09 1982-01-13 Geoffrey Thomas Burling A distance indicating system
GB2111788A (en) * 1981-10-31 1983-07-06 Nissan Motor Optical radar for vehicles
GB2222710A (en) * 1988-09-09 1990-03-14 John Home Vehicle monitoring systems

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2001822A (en) * 1977-07-29 1979-02-07 Nissan Motor Anti-collision radar system provided with circuitry for monitoring driver's ability to safely control vehicle
WO1980001782A1 (en) * 1979-02-26 1980-09-04 Collision Avoidance Systems Anti-collision vehicular radar system
EP0043396A1 (en) * 1980-07-09 1982-01-13 Geoffrey Thomas Burling A distance indicating system
GB2111788A (en) * 1981-10-31 1983-07-06 Nissan Motor Optical radar for vehicles
GB2222710A (en) * 1988-09-09 1990-03-14 John Home Vehicle monitoring systems

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Electrical Communications Vol.57 No.1 1982 page 77 *
New Scientist 15 August 1985 page 27 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995020502A1 (en) * 1994-01-29 1995-08-03 Thomas Bleiner Vehicle signal-indicating device
GB2307810A (en) * 1995-12-02 1997-06-04 Roy Michael Ashley Parking aid
CN102765348A (en) * 2012-08-03 2012-11-07 东莞市中镓半导体科技有限公司 Laser fog lamp with vehicle distance safety function
CN106080375A (en) * 2016-06-24 2016-11-09 联想(北京)有限公司 A kind of information processing method and the vehicles

Also Published As

Publication number Publication date
GB9205059D0 (en) 1992-04-22

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Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)