EP0947969B1 - Einrichtung zur Fahrzeugerfassung, insbesondere Fahrzeugzählung - Google Patents
Einrichtung zur Fahrzeugerfassung, insbesondere Fahrzeugzählung Download PDFInfo
- Publication number
- EP0947969B1 EP0947969B1 EP99105487A EP99105487A EP0947969B1 EP 0947969 B1 EP0947969 B1 EP 0947969B1 EP 99105487 A EP99105487 A EP 99105487A EP 99105487 A EP99105487 A EP 99105487A EP 0947969 B1 EP0947969 B1 EP 0947969B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sensors
- evaluation unit
- vehicles
- lane
- sensor signals
- 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.)
- Expired - Lifetime
Links
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Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/04—Detecting movement of traffic to be counted or controlled using optical or ultrasonic detectors
Definitions
- the invention relates to a device for vehicle detection and counting of lanes lying side by side moving vehicles.
- the vehicle count is in one Entry and exit road thought.
- the Counting vehicles on the entry or exit ramp a parking garage is important for recording the occupancy.
- the invention is based on the object Device for vehicle registration and counting if possible to create oncoming traffic that is simple enables a reliable counting result.
- This device for vehicle detection from at least two adjacent lanes within a detection area moving vehicles has at least two in this detection area above each lane with in Arranged one behind the other in the direction of the road Sensors, in particular ultrasonic sensors, for detection a vehicle traveling on the respective lane and an evaluation unit assigned to each lane, which with sensor inputs connected to the sensors for receiving the relevant Has sensor signals.
- the facility also includes lines connecting the evaluation units the sensor signals received by an evaluation unit as virtual sensor signals from the other evaluation unit be transmitted and at least one line to Synchronization of the connected sensors.
- the drawing shows a device for recording and counting of vehicles F1, F2 lying on side by side Lanes A, B can drive.
- This facility points within a detection area sensors, in particular ultrasonic sensors, on the above each lane A, B in Lane direction are spaced one behind the other.
- a or B three ultrasonic sensors A1, A2, A3 or B1, B2, B3 intended.
- the number can also be higher, but must be at least are two, e.g. the direction of travel of a vehicle to be able to determine.
- the ultrasonic sensors A1, A2, A3 or B1, B2, B3 each Lane A and B are each with an associated evaluation unit AE or BE connected to the relevant sensor signals SA1, SA2, SA3 or SB1, SB2, SB3 receives and evaluates.
- the two evaluation units AE, BE have an eight-core Cable connected to lines L1 to L8.
- Three wires L1, L2, L3 are used to transmit the virtual sensor signals SA1 ', SA2', SA3 'from the evaluation unit AE to Evaluation unit BE, and a further three line wires L4, L5, L6 are used to transmit the virtual sensor signals SB1 ', SB2 ', SB3' from the evaluation unit BE to the evaluation unit AE.
- Virtual sensor signals are those from another Evaluation unit assigned to ultrasonic sensors triggered become.
- Another line wire L7 is used for synchronization the sensors or ultrasonic sensors used, to avoid mutual interference between the sensors.
- the eighth line wire L8 connects ground.
- Each evaluation unit AE, BE is equipped with a microprocessor, with which the received sensor signals after a stored program can be evaluated. For example is it is possible in this way with this facility in one Parking garage the vehicles on the entry and exit ramp to count. After activating the three in a row Ultrasonic sensors A1, A2, A3 and B1, B2, B3 is used by associated evaluation unit AE or BE of the entrance or Exit ramp a counting pulse activated.
- a vehicle is moving in an entry ramp A so that the ultrasonic sensors A1 and A2 are activated , the connected second evaluation unit BE corresponding virtual sensor signals SA1 'and SA2' transmitted. If the vehicle changes to exit ramp B, see above the third sensor A3 would not be activated and consequently a correct vehicle count would not be made on its own. Instead, the ultrasonic sensor located next to it triggers B3 the exit ramp B, its virtual sensor signal SB3 'via the evaluation unit BE to the evaluation unit AE is transmitted. With this additional information the evaluation unit AE correctly trigger the entry count pulse. This is just one of any functional examples. It enables correct counting even when zigzagging or when passing between the entrance and Exit ramp. Of course, more than two can adjacent lanes in a corresponding manner Sensors and associated evaluation unit. The connection of the evaluation units and the transmission of the virtual sensor signals happen over this connecting line in a corresponding manner.
- An alternative embodiment includes a bus, e.g. the ASI bus known from the specialist literature, which includes all sensors with each other and with an ASI master and one of these higher-level control, e.g. a programmable logic controller Control, connects.
- a program is stored in the control which controls and evaluates the sensors.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Traffic Control Systems (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Description
Claims (1)
- Einrichtung zur Fahrzeugerfassung und/oder -zählung von auf mindestens zwei nebeneinander liegenden Fahrbahnen (A, B) innerhalb eines Erfassungsbereichs fahrenden Fahrzeugen (F1, F2), mit mindestens zwei in diesem Erfassungsbereich oberhalb jeder Fahrbahn (A, B) in Fahrbahnrichtung mit Abstand hintereinander angeordneten Sensoren (A1, A2 bzw. B1, B2), insbesondere Ultraschallsensoren, zur Erfassung eines auf der jeweiligen Fahrbahn (A oder B) fahrenden Fahrzeugs (F1, F2) und mit einer jeder Fahrbahn (A bzw. B) zugeordneten Auswerteeinheit (AE bzw. BE), die mit den Sensoren (A1, A2 bzw. B1, B2) verbundene Sensoreingänge zum Empfang der betreffenden Sensorsignale (SA1, SA2 bzw. SB1, SB2) aufweist, und mit die Auswerteeinheiten (AE, BE) verbindenden Leitungen (L1, L2, L4, L5), über die die von der Auswerteeinheit (AE oder BE) empfangenen Sensorsignale (SA1, SA2 oder SB1, SB2) als virtuelle Signale (SA1', SA2' oder SB1', SB2') der jeweils anderen Auswerteeinheit (BE oder AE) übermittelt werden, und mit mindestens einer Leitung (L7) zur Synchronisierung der angeschlossenen Sensoren (A1, A2, B1, B2).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19814183 | 1998-03-30 | ||
DE19814183 | 1998-03-30 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0947969A2 EP0947969A2 (de) | 1999-10-06 |
EP0947969A3 EP0947969A3 (de) | 2000-09-06 |
EP0947969B1 true EP0947969B1 (de) | 2004-02-04 |
Family
ID=7862969
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99105487A Expired - Lifetime EP0947969B1 (de) | 1998-03-30 | 1999-03-17 | Einrichtung zur Fahrzeugerfassung, insbesondere Fahrzeugzählung |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0947969B1 (de) |
AT (1) | ATE259090T1 (de) |
DE (1) | DE59908441D1 (de) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3141612A (en) * | 1961-01-16 | 1964-07-21 | Gen Signal Corp | Bi-directional multiple lane vehicle registering system |
US5173692A (en) * | 1990-08-13 | 1992-12-22 | Ai Computer Services, Inc. | System and method of vehicle detection |
FR2671653B1 (fr) * | 1991-01-11 | 1995-05-24 | Renault | Systeme de mesure du trafic de vehicules automobiles. |
US5528234A (en) * | 1994-02-01 | 1996-06-18 | Mani; Siva A. | Traffic monitoring system for determining vehicle dimensions, speed, and class |
-
1999
- 1999-03-17 DE DE59908441T patent/DE59908441D1/de not_active Expired - Fee Related
- 1999-03-17 AT AT99105487T patent/ATE259090T1/de not_active IP Right Cessation
- 1999-03-17 EP EP99105487A patent/EP0947969B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0947969A2 (de) | 1999-10-06 |
DE59908441D1 (de) | 2004-03-11 |
ATE259090T1 (de) | 2004-02-15 |
EP0947969A3 (de) | 2000-09-06 |
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