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Device and method for determining the direction, speed and/or distance of vehicles

A driving direction and vehicle technology, applied in the field of vehicle speed and/or vehicle distance, driving direction, can solve the problems of electromagnetic interference radiation, high cost, complex structure of radar scanning device, etc.

Inactive Publication Date: 2011-04-27
KAPSCH TRAFFICCOM AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A common feature of all known systems is that they are particularly complex: the induction loop requires opening the road surface, light barriers need to be installed on both road edges, radar scanning devices or laser scanning devices are structurally complex, expensive and possibly emits undesired electromagnetic interference radiation

Method used

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  • Device and method for determining the direction, speed and/or distance of vehicles
  • Device and method for determining the direction, speed and/or distance of vehicles
  • Device and method for determining the direction, speed and/or distance of vehicles

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Embodiment Construction

[0029] figure 1 A device 1 for determining the direction of travel and / or the speed of a vehicle 2 on a road surface 3 is shown in FIG. The device 1 has a detector 4 that operates according to the phototransition method, which is mounted on a bridge 5 spanning the road surface 3 and is connected to an evaluation device 6 . The detector 4 comprises a light pattern projector 7 on the one hand, and this projector projects a light pattern 9 onto the road surface 3 from a first location (referring to an upper beam 8 from the bridge frame 5 here); Contains on the one hand a camera 10, which takes images 12, 13 of the projected light pattern 9 from a second location (referred to here from a lower beam 11 of the bridge 5), as in Figure 2a with 2b are shown as two consecutive time points.

[0030] At each of the two aforementioned points in time, the evaluation device 6 ascertains the surface contour of the vehicle 2 from the distortions of the light pattern 9 in the images 12, 13 ...

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Abstract

The invention relates to the determination of direction, speed and / or distance of vehicles (2) on a roadway (3) by means of a sensor (4), which operates according to the light-section procedure and is directed onto the roadway (3), for recording the surface contour of a vehicle (2), and an evaluation unit (6), which is connected to the sensor (4) and determines the direction, speed and / or distance of the vehicles (2) therefrom.

Description

technical field [0001] The invention relates to a device and a method for determining the driving direction, speed and / or distance of a vehicle on a road. Background technique [0002] The determination of the driving direction and speed of the vehicle is of great significance in the detection of violators and the observance of the speed limit in traffic monitoring and safety. The measurement of the distance between vehicles is used, for example, in tunnels to maintain a minimum distance between vehicles and ensure that rear-end collisions are avoided. [0003] To determine the direction of travel, speed or distance of a vehicle, very different systems are currently used, such as the use of light barriers, induction loops embedded in the road surface, radar scanners, laser scanners, etc. A common feature of all known systems is that they are particularly complex: the induction loop requires opening the road surface, light barriers need to be installed on both road edges, ra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/04G08G1/056G08G1/052G08G1/16
CPCG01P3/68G08G1/052G01S17/58G08G1/04G01P13/045G01P3/38G08G1/056
Inventor A·利奥波德A·舍霍拉O·纳吉
Owner KAPSCH TRAFFICCOM AG