CH609460A5 - Method and installation for determining and displaying a permitted limit speed of a vehicle - Google Patents
Method and installation for determining and displaying a permitted limit speed of a vehicleInfo
- Publication number
- CH609460A5 CH609460A5 CH416476A CH416476A CH609460A5 CH 609460 A5 CH609460 A5 CH 609460A5 CH 416476 A CH416476 A CH 416476A CH 416476 A CH416476 A CH 416476A CH 609460 A5 CH609460 A5 CH 609460A5
- Authority
- CH
- Switzerland
- Prior art keywords
- pulses
- vehicle
- barriers
- speed
- permitted limit
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
- G08G1/096708—Systems involving transmission of highway information, e.g. weather, speed limits where the received information might be used to generate an automatic action on the vehicle control
- G08G1/096716—Systems involving transmission of highway information, e.g. weather, speed limits where the received information might be used to generate an automatic action on the vehicle control where the received information does not generate an automatic action on the vehicle control
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P1/00—Details of instruments
- G01P1/07—Indicating devices, e.g. for remote indication
- G01P1/08—Arrangements of scales, pointers, lamps or acoustic indicators, e.g. in automobile speedometers
- G01P1/10—Arrangements of scales, pointers, lamps or acoustic indicators, e.g. in automobile speedometers for indicating predetermined speeds
- G01P1/103—Arrangements of scales, pointers, lamps or acoustic indicators, e.g. in automobile speedometers for indicating predetermined speeds by comparing the value of the measured signal with one or several reference values
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/42—Devices characterised by the use of electric or magnetic means
- G01P3/56—Devices characterised by the use of electric or magnetic means for comparing two speeds
- G01P3/60—Devices characterised by the use of electric or magnetic means for comparing two speeds by measuring or comparing frequency of generated currents or voltages
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/64—Devices characterised by the determination of the time taken to traverse a fixed distance
- G01P3/66—Devices characterised by the determination of the time taken to traverse a fixed distance using electric or magnetic means
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
- G08G1/096708—Systems involving transmission of highway information, e.g. weather, speed limits where the received information might be used to generate an automatic action on the vehicle control
- G08G1/096725—Systems involving transmission of highway information, e.g. weather, speed limits where the received information might be used to generate an automatic action on the vehicle control where the received information generates an automatic action on the vehicle control
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
- G08G1/096733—Systems involving transmission of highway information, e.g. weather, speed limits where a selection of the information might take place
- G08G1/096758—Systems involving transmission of highway information, e.g. weather, speed limits where a selection of the information might take place where no selection takes place on the transmitted or the received information
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
- G08G1/096766—Systems involving transmission of highway information, e.g. weather, speed limits where the system is characterised by the origin of the information transmission
- G08G1/096783—Systems involving transmission of highway information, e.g. weather, speed limits where the system is characterised by the origin of the information transmission where the origin of the information is a roadside individual element
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Traffic Control Systems (AREA)
- Measurement Of Distances Traversed On The Ground (AREA)
Abstract
The method uses a road infrastructure formed by pairs of magnetic barriers and a detector associated with electronic circuits provided on the vehicle. A tachometric pick-up provides a train of pulses whose frequency is a function of the instantaneous speed of the vehicle. The pulses of this train appearing between two validated pulses coming from a pair of magnetic barriers are counted. The time taken for the vehicle to cross this pair of barriers is measured. The distance separating the barriers is deduced therefrom and from this information, and a reference time, the permitted limit speed is determined and displayed in the vehicle. The installation comprises pairs of magnetic barriers embedded in the roadway and on the vehicle, a detector (2, 6) supplying pulses when the barriers are crossed, a tachometric pick-up (9) providing speed pulses, a device (8) for counting the speed pulses, a device (8) for measuring the time between two pulses from the magnetic barriers, a device (8) for calculating corresponding distance information, a device (8) for converting this distance into a permitted limit speed, and a device (14, 15) for displaying this speed, which allows the driver to be informed continuously of the permitted limit speed on his current route (Fig. 1). <IMAGE>
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7511017A FR2307272A1 (en) | 1975-04-09 | 1975-04-09 | ROAD SIGNALING WARNING METHOD AND SYSTEM WITH AUTHORIZED SPEED DISPLAY |
Publications (1)
Publication Number | Publication Date |
---|---|
CH609460A5 true CH609460A5 (en) | 1979-02-28 |
Family
ID=9153676
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH416476A CH609460A5 (en) | 1975-04-09 | 1976-04-02 | Method and installation for determining and displaying a permitted limit speed of a vehicle |
Country Status (8)
Country | Link |
---|---|
JP (1) | JPS51123599A (en) |
CA (1) | CA1093657A (en) |
CH (1) | CH609460A5 (en) |
DE (1) | DE2615424A1 (en) |
ES (1) | ES446820A1 (en) |
FR (1) | FR2307272A1 (en) |
GB (1) | GB1534729A (en) |
IT (1) | IT1058798B (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2467451A1 (en) * | 1979-10-10 | 1981-04-17 | Sarrosquy Gerard | Vehicle speed roadside controller - uses transmitters and vehicle-mounted receivers to signal to driver, and cut off the ignition if maximum speed is exceeded |
DE19506420A1 (en) * | 1995-02-24 | 1996-08-29 | Eugen Dr Med Breimann | Motor vehicle with external speed display for high-speed motor-way sections |
GB2363885A (en) * | 2000-06-21 | 2002-01-09 | Robert John Pigott | Speed limit display for road vehicles |
FR2868540B1 (en) * | 2004-03-30 | 2006-07-28 | Andre Gautreau | METHOD FOR SIGNALING READ INFORMATION FOR A VEHICLE, AND DEVICES FOR IMPLEMENTING SAID METHOD |
CN110189547B (en) * | 2019-05-30 | 2020-10-20 | 广州小鹏汽车科技有限公司 | Obstacle detection method and device and vehicle |
CN112796251B (en) * | 2020-12-21 | 2022-06-17 | 山东祥瑞路桥工程有限公司 | Mechanical anti-deviation road isolation pier |
CN117437791B (en) * | 2023-12-14 | 2024-02-20 | 山东彩旺建设有限公司 | Intelligent urban traffic guardrail anti-collision prompt system |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3044043A (en) * | 1958-07-21 | 1962-07-10 | Gen Motors Corp | Vehicle signalling apparatus for warning of approaching road conditions |
DE2334406A1 (en) * | 1972-07-17 | 1974-01-31 | Pierre Edmond Tuffet | TRAFFIC SIGN WARNING SYSTEM |
-
1975
- 1975-04-09 FR FR7511017A patent/FR2307272A1/en active Granted
-
1976
- 1976-04-02 CH CH416476A patent/CH609460A5/en not_active IP Right Cessation
- 1976-04-02 CA CA249,425A patent/CA1093657A/en not_active Expired
- 1976-04-07 GB GB1414376A patent/GB1534729A/en not_active Expired
- 1976-04-08 ES ES446820A patent/ES446820A1/en not_active Expired
- 1976-04-08 IT IT6783076A patent/IT1058798B/en active
- 1976-04-09 DE DE19762615424 patent/DE2615424A1/en not_active Withdrawn
- 1976-04-09 JP JP4081376A patent/JPS51123599A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
IT1058798B (en) | 1982-05-10 |
GB1534729A (en) | 1978-12-06 |
CA1093657A (en) | 1981-01-13 |
JPS51123599A (en) | 1976-10-28 |
FR2307272A1 (en) | 1976-11-05 |
ES446820A1 (en) | 1977-06-01 |
DE2615424A1 (en) | 1976-10-14 |
FR2307272B1 (en) | 1981-12-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |