FR2514047A1 - Automatic detector and indicator for accidents on roads - uses vibration detectors regularly placed along rail to generate electric signals to base station - Google Patents

Automatic detector and indicator for accidents on roads - uses vibration detectors regularly placed along rail to generate electric signals to base station Download PDF

Info

Publication number
FR2514047A1
FR2514047A1 FR8118516A FR8118516A FR2514047A1 FR 2514047 A1 FR2514047 A1 FR 2514047A1 FR 8118516 A FR8118516 A FR 8118516A FR 8118516 A FR8118516 A FR 8118516A FR 2514047 A1 FR2514047 A1 FR 2514047A1
Authority
FR
France
Prior art keywords
detectors
accidents
signals
placed along
roads
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
FR8118516A
Other languages
French (fr)
Other versions
FR2514047B1 (en
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 FR8118516A priority Critical patent/FR2514047A1/en
Publication of FR2514047A1 publication Critical patent/FR2514047A1/en
Application granted granted Critical
Publication of FR2514047B1 publication Critical patent/FR2514047B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
    • G08B25/016—Personal emergency signalling and security systems
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
    • E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
    • E01F9/658—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by means for fixing
    • E01F9/669—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by means for fixing for fastening to safety barriers or the like

Abstract

The arrangement uses vibration detectors mounted at intervals along the safety rails. The detectors respond to mechanical vibration brought about by the impact a vehicle on the safety rail. The detectors generate an electric signal proportional to the amplitude of the vibration, and these signals are multiplexed for transmission to a central processing station. The signals from the various transducers are integrated, with a rise time constant of 0.5 sec and fall time of 1 sec, then compared one to the other to determine which is the largest signal, under a maximum energy criterion. From knowledge of the largest signal it is assumed that the accident happened nearest that transducer, and thus the location can be suitable displayed and an alarm initiated if required.

Description

La présente invention concerne un procédé et un dispositif de détection automatique d'accidents, se produisant sur des chaussées équipées de barrières de sécuriw té ou dispositifs similaires, ci-après définis sur le terme générique de barrières. The present invention relates to a method and a device for the automatic detection of accidents, occurring on roadways equipped with safety barriers or similar devices, hereinafter defined on the generic term of barriers.

Dans le domaine de la détection des accidents routiers, il n'existe pas de procédés permettant la détection automatique de ces événements
Ltobaet de la présente invention est de présenter un procédé ainsi qu'un dispositif permettant la détection et la signalisation à distance d'accidents routiers, le dispositif offrant une bonne fiabilité et n'exigeant que des investissements relativement modérés.In the field of road accident detection, there are no procedures allowing the automatic detection of these events
The object of the present invention is to present a method as well as a device allowing the remote detection and signaling of road accidents, the device offering good reliability and requiring only relatively moderate investments.

Le dispositif décrit est destiné a équiper les portions de routes ou autoroutes, où la fréquence et la gravité des accidents sont particulièrement élevées et dues souvent aux mauvaises conditions de visibilité. The device described is intended to equip portions of roads or motorways, where the frequency and severity of accidents are particularly high and often due to poor visibility conditions.

La présente invention est caractérIsée en ce que l'on dispose sur chacune des deux barrières latérales, de détecteurs de vibrations, qui recueillent ces dernières se propageant dans les barrières et engendres par le choc d'un ou de plusieurs véhicules ayant percuté une de ces barrières. The present invention is characterized in that one has on each of the two lateral barriers, vibration detectors, which collect the latter propagating in the barriers and generated by the impact of one or more vehicles having struck one of these barriers.

La présente invention peut sappliquer également aux impacts sur les barrières de passages a niveau, et en particulier celles de type automatique et non gardé. The present invention can also be applied to impacts on level crossing barriers, and in particular those of automatic and unguarded type.

Les détecteurs sont relies, par câbles pouvant être supportés par les barrières, à une logique centralisée, assurant le traitement des signaux permettant la détection d'un accident ainsi que sa localisation. The detectors are connected, by cables that can be supported by the barriers, to a centralized logic, ensuring the processing of signals allowing the detection of an accident as well as its location.

Des formes de l'objet de l'invention sont représentées, à titre d'exemple non limitatif, sur le dessin annexé. Forms of the subject of the invention are shown, by way of nonlimiting example, in the accompanying drawing.

ta figure 1 est 2ne vue schématique illustrant le procédé de détection d'accident selon lg nventionv appliqué å une chaussée d autoroutes 1.  ta figure 1 is a schematic view illustrating the accident detection method according to lg nventionv applied to a highway pavement 1.

Le dispositif selon l'invention se compose d'un ensemble capteur-amplificateurs de vibrations 3 fixé à la barrière de sécurité 2.  The device according to the invention consists of a vibration sensor-amplifier assembly 3 fixed to the safety barrier 2.

Un câble 4 assure le transfert des signaux électriques ainsi que l'alimentation de l'élément 3. A cable 4 ensures the transfer of the electrical signals as well as the supply of the element 3.

Une logique 6 câblée ou programmée, effectue le traitement des signaux. Ce traitement est décrit plus bas. Wired or programmed logic 6 performs signal processing. This treatment is described below.

Un système de visualisation et d'alarme 7 affiche la localisation de l'accident provoqué par le vehicule 5. A display and alarm system 7 displays the location of the accident caused by the vehicle 5.

Le traitement subi par les signaux est représenté sur la figure 2 : y sont figurés des capteurs 1 et amplificateurs 2, implantés sur les barrières. Les signaux issus de ces éléments, sont collectés par un câble il multiconducteur vers une logique comprenant les éléments suivants - un multiplexeur 3 scrutant l'ensemble des capteurs
amplificateurs et alimentant une visualisation 4, - un ensemble d'amplificateurs passe bande 5, - un ensemble d'intégrateurs 6 dont la constante de temps
de montée est de 0,5 seconde et celle de descente
1 seconde, - un ensemble d'amplificateurs bloqueurs 7 alimentant une
série d'afficheurs 10 correspondant chacun à une zone
surveillée,
un circuit "OU" 8 alimentant un organe d'alarme 9 commun
a tout le dispositif, - une horloge 12 assurant le cadencement de la logique.The processing undergone by the signals is shown in FIG. 2: there are shown sensors 1 and amplifiers 2, located on the barriers. The signals from these elements are collected by a multiconductor cable il to a logic comprising the following elements - a multiplexer 3 scanning all the sensors
amplifiers and supplying a display 4, - a set of bandpass amplifiers 5, - a set of integrators 6 whose time constant
ascent is 0.5 seconds and that of descent
1 second, - a set of blocking amplifiers 7 supplying a
series of displays 10 each corresponding to a zone
monitored,
an "OR" circuit 8 supplying a common alarm member 9
to the entire device, - a clock 12 ensuring the timing of the logic.

L'invention n'est pas limitée au seul mode de réalisation décrit et représenté, mais en couvre au contraire toutes les variantes.  The invention is not limited to the single embodiment described and shown, but on the contrary covers all variants.

Claims (4)

REVENDICATIONS 1- Procéda de détection automatique d'accident sur voie routière munie de rails de sécurité, au moyen de détecteurs de vibration, caractérisé en ce que les détecteurs sont disposés le long de la voie routière, sur les barrières de sécurité et recueillent les vibrations mécaniques engendrées par l'impact d'un véhicule sur les barrieresw les signaux électriques de sortie des détecteurs étant compares pour déterminer le lieu d'impact de l'accident par rapport auv détecteurs. 1- Automatic road accident detection procedure with safety rails, using vibration detectors, characterized in that the detectors are placed along the road, on the safety barriers and collect mechanical vibrations generated by the impact of a vehicle on the barriers, the electrical output signals of the detectors being compared to determine the place of impact of the accident with respect to the detectors. 2- Procédé selon la revendication 1, caractérisé en ce que l'analyse des signaux est faite par comparaison des énergies reçues sur chacun des détecteurs. 2- Method according to claim 1, characterized in that the analysis of the signals is made by comparison of the energies received on each of the detectors. 3- Procédé selon la revendication 1 et 2, caractérisé en ce que les signaux de sortie sont filtrés, multiplexés et soumis à une commande automatique de gain de constante de temps, de durée de montée inférieure a celle de la descente. 3- Method according to claim 1 and 2, characterized in that the output signals are filtered, multiplexed and subjected to an automatic control of gain of time constant, duration of rise less than that of descent. 4- Procédé selon les revendications précédentes, caractérisé en ce que la localisation de l'accident est assimilée à la position du détecteur ayant recueilli l'énergie mécanique maximum  4- Method according to the preceding claims, characterized in that the location of the accident is assimilated to the position of the detector having collected the maximum mechanical energy
FR8118516A 1981-10-01 1981-10-01 Automatic detector and indicator for accidents on roads - uses vibration detectors regularly placed along rail to generate electric signals to base station Granted FR2514047A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8118516A FR2514047A1 (en) 1981-10-01 1981-10-01 Automatic detector and indicator for accidents on roads - uses vibration detectors regularly placed along rail to generate electric signals to base station

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8118516A FR2514047A1 (en) 1981-10-01 1981-10-01 Automatic detector and indicator for accidents on roads - uses vibration detectors regularly placed along rail to generate electric signals to base station

Publications (2)

Publication Number Publication Date
FR2514047A1 true FR2514047A1 (en) 1983-04-08
FR2514047B1 FR2514047B1 (en) 1984-05-18

Family

ID=9262651

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8118516A Granted FR2514047A1 (en) 1981-10-01 1981-10-01 Automatic detector and indicator for accidents on roads - uses vibration detectors regularly placed along rail to generate electric signals to base station

Country Status (1)

Country Link
FR (1) FR2514047A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2609409A1 (en) * 1987-01-09 1988-07-15 Lesterps Bernard Methods and device for marking routes, in particular ski runs
WO2000043768A1 (en) * 1999-01-20 2000-07-27 Pure Technologies Ltd. Surveillance of structures
WO2010131126A1 (en) * 2009-05-11 2010-11-18 C.R.F. Società Consortile Per Azioni Road barrier structure with an integrated system for energy generation and detection and classification of collisions
AT511064B1 (en) * 2011-06-17 2012-09-15 Rauscher Alexander METHOD FOR EVALUATING A MOVEMENT OF RESTRAINT ELEMENTS OF A VEHICLE RESTRAINT SYSTEM
CN110184968A (en) * 2019-05-30 2019-08-30 阙宇凡 It is a kind of on road can Fast Installation disassembly road guard fence

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1197110B (en) * 1961-07-07 1965-07-22 Wilhelm Von Der Linde Warning device for with control devices, z. B. crash barriers, provided roads
CH492583A (en) * 1968-08-27 1970-06-30 Scuderi Santi Automatic accident reporting device for motor vehicles
GB1278249A (en) * 1968-12-10 1972-06-21 Marconi Co Ltd Improvements in or relating to vibration detectors
FR2325998A1 (en) * 1975-09-23 1977-04-22 Paris Aeroport Seismic aircraft touchdown points locator - has comparator system connected to several seismic detectors along runway

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1197110B (en) * 1961-07-07 1965-07-22 Wilhelm Von Der Linde Warning device for with control devices, z. B. crash barriers, provided roads
CH492583A (en) * 1968-08-27 1970-06-30 Scuderi Santi Automatic accident reporting device for motor vehicles
GB1278249A (en) * 1968-12-10 1972-06-21 Marconi Co Ltd Improvements in or relating to vibration detectors
FR2325998A1 (en) * 1975-09-23 1977-04-22 Paris Aeroport Seismic aircraft touchdown points locator - has comparator system connected to several seismic detectors along runway

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2609409A1 (en) * 1987-01-09 1988-07-15 Lesterps Bernard Methods and device for marking routes, in particular ski runs
WO2000043768A1 (en) * 1999-01-20 2000-07-27 Pure Technologies Ltd. Surveillance of structures
WO2010131126A1 (en) * 2009-05-11 2010-11-18 C.R.F. Società Consortile Per Azioni Road barrier structure with an integrated system for energy generation and detection and classification of collisions
EP2253762A1 (en) * 2009-05-11 2010-11-24 C.R.F. Società Consortile per Azioni Road barrier structure with an integrated system for energy generation and detection and classification of collisions
AT511064B1 (en) * 2011-06-17 2012-09-15 Rauscher Alexander METHOD FOR EVALUATING A MOVEMENT OF RESTRAINT ELEMENTS OF A VEHICLE RESTRAINT SYSTEM
AT511064A4 (en) * 2011-06-17 2012-09-15 Rauscher Alexander METHOD FOR EVALUATING A MOVEMENT OF RESTRAINT ELEMENTS OF A VEHICLE RESTRAINT SYSTEM
CN110184968A (en) * 2019-05-30 2019-08-30 阙宇凡 It is a kind of on road can Fast Installation disassembly road guard fence
CN110184968B (en) * 2019-05-30 2020-12-08 博兴兴博城建投资集团有限公司 Road guardrail device capable of being quickly mounted and dismounted and used on road

Also Published As

Publication number Publication date
FR2514047B1 (en) 1984-05-18

Similar Documents

Publication Publication Date Title
EP0912969B1 (en) A passive road sensor for automatic monitoring and method thereof
US6075466A (en) Passive road sensor for automatic monitoring and method thereof
EP3509927B1 (en) A railway track condition monitoring system for detecting a partial or complete disruption of a rail of the railway track
US5784007A (en) Traffic signal sound monitor
CN102079319B (en) Railway rockfall early warning system and method
US20040080432A1 (en) Road traffic monitoring system
EP1360671B1 (en) Road traffic monitoring system
CN101111875A (en) Warning system for use on motorways to indicate presence of a vehicle travelling in the wrong direction
US6512451B1 (en) Manhole vehicle sensor
US20070031084A1 (en) Trafic monitoring system
FR2475769A1 (en) ACOUSTICAL DEVICE FOR MONITORING AN INDUSTRIAL INSTALLATION
FR2514047A1 (en) Automatic detector and indicator for accidents on roads - uses vibration detectors regularly placed along rail to generate electric signals to base station
US6020815A (en) Utility right-of-way safety monitor
FR2721717A1 (en) Road safety system e.g. for motorway, busy urban roads
US20220065686A1 (en) Device and method for monitoring status of cable barriers
JPH09282581A (en) Method and device for detecting vehicle accident inside tunnel
FR3002361A3 (en) Warning device for use in police vehicle for approximating excess speed limit of vehicle, comprises sensor element for measuring speed, and controller that is connected to sensor element
JPH11316141A (en) Rock-bed rock-falling detecting device
KR20200090463A (en) System for monitoring state of train and railway using optical cable and method thereof
FR2497982A1 (en) SEISMIC CINEMOMETER
FR2745915A1 (en) Fog detection device for automotive applications
FR2732770A1 (en) In automobile vehicle speed alarm
CN201142148Y (en) Automatic alarm device for preventing chain rear collision of vehicle in freeway
JPH082571Y2 (en) Displacement detection structure of slope failure detector
EP0635813A1 (en) Acoustic evaluation process of road vehicles traffic flow

Legal Events

Date Code Title Description
ST Notification of lapse