Photoelectric integral wheel axle counter and counting method thereof
A technology of counters and photoelectric sensors, applied in the direction of counting mechanisms/items, instruments, etc., can solve the problems of inability to detect vehicles on the sensor, high cost, etc., and achieve the effect of large market prospects and market benefits, low cost, and full utilization
Inactive Publication Date: 2012-06-20
广州市图之灵计算机技术有限公司
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The disadvantage of this kind of recognizer is that the cost is high, and it cannot detect the vehicle stationary on the sensor, only the dynamic signal can be detected
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[0018] The present invention uses the reflection physical characteristics of light as the technical basis, and is designed as a diffuse reflection sensor integrating light emission and light reception. Since the light is emitted, the objects encountered are various, including smooth and rough surfaces. Yes, there are irregular geometric surfaces such as slopes and curved surfaces, so by collecting and calculating the diffuse reflection of light, it can be judged whether there is an object in front of the beam or not. Due to the diffuse reflection of light, its light is very weak and not concentrated into beams, so the reflected light signal must be amplified and converted into an electrical signal.
[0019] see figure 1 , the present invention comprises a MCU controller, multi-channel diffuse reflection photoelectric sensors, a power supply, a display module and an interface module; the MCU controller is respectively connected with multi-channel diffuse reflection photoelectri...
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The invention relates to a photoelectric integral wheel axle counter and a counting method thereof, wherein the counter comprises a MCU (Micro Controller Unit) controller, multiple paths of diffuse reflection type photoelectric sensors, a display module and an interface module. The MCU controller is respectively connected with the multiple paths of diffuse reflection type photoelectric sensors, the display module and the interface module; the multiple paths of diffuse reflection type photoelectric sensors are orderly arranged in a groove, and vertical height positions of the photoelectric sensors are automatically adjusted according to the automobile height and the automobile body so as to form several parallel light beams vertically irradiating on an automobile tire; the side face of the automobile tire diffusely reflects optical signals, and the diffusely reflected optical signals enter into the diffuse reflection sensors so as to be converted into electric signals and output to the MCU controller; the MCU controller judges that the wheel axles of the tire exist according to the input electric signals, and counts the wheel axles. For the counter and the method, the number of the automobile axles is calculated by the optical signals and the electric signals with higher accuracy, so that the technical problem of poor accuracy in the prior art is solved.
Description
technical field [0001] The invention belongs to the field of transportation electronics, and is mainly used for a photoelectric integrated axle counter and a counting method for detecting the number of axles of a vehicle. Background technique [0002] In the field of intelligent transportation, it is often necessary to detect the external characteristics of the vehicle, so as to be applied to intelligent automatic control equipment such as weighing system and vehicle type discrimination system. The axle count of the vehicle is one of the very important characteristic parameters. The existing axle counting technology or related products mainly include the following types: [0003] The first is the rubber strip pressure switch, which is made of conductive rubber into a rubber strip with a length of 1 meter to 3 meters, and is laid horizontally or obliquely on the driveway. When a vehicle passes by, the rubber strip is pressed to generate a switch closing signal; two parallel...
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IPC IPC(8): G06M1/272
Inventor 宋英良杨清海
Owner 广州市图之灵计算机技术有限公司