Wheel sensor and method for judging train travel parameters using the sensor
A wheel sensor and sensor technology, applied in railway car body parts, railway vehicle testing, vehicle route interaction equipment, etc., can solve problems such as high cost and complex structure, and achieve the effect of low cost and simple structure
Active Publication Date: 2017-02-22
INVENGO INFORMATION TECH
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Problems solved by technology
[0003] The technical problem to be solved by the present invention is to provide a wheel sensor with a relatively simple structure and low cost and a method for judging train travel parameters using the sensor in view of the defects of the above-mentioned relatively complex structure and high cost of the prior art
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[0029] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
[0030] Such as figure 1 As shown, in the embodiment of the wheel sensor of the present invention and the method for using the sensor to judge train running parameters, the wheel sensor 1 includes a first magnetoresistor 2, a second magnetoresistor 3 and a permanent magnet 4, the first magnetoresistor 2 and the second magnetoresistor 3 are respectively placed on the working surface of the wheel sensor 1 (that is, the first magnetoresistor 2 and the second magnetoresistor 3 are arranged on a plane close to the top surface of the sensor 1), the second A magneto-sensitive resistor 2 and a second magneto-sensitive resistor 3 are respectively located at one end of the above-mentioned working surface and are parallel to each other; when the wheel sensor 1 is installed, the traveling direction of the train is perpendicular to the length direction of the above-me...
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The invention relates to a wheel sensor. The wheel sensor comprises a first magnetic sensitive sensor, a second magnetic sensitive sensor and a permanent magnet, wherein the first magnetic sensitive sensor and the second magnetic sensitive sensor are arranged on a working surface of the wheel sensor respectively, are located at each end of the working surface respectively and are parallel to each other; one end of the first magnetic sensitive sensor is connected with a power supply input end of the sensor and the other end of the first magnetic sensitive sensor is connected with one end of the second magnetic sensitive sensor; a node is used as a signal output end of the sensor at the same time; the other end of the second magnetic sensitive sensor is grounded; the permanent magnet is arranged in the sensor and is located under the first magnetic sensitive sensor and the second magnetic sensitive sensor. The invention further relates to a method for judging train moving parameters using the wheel sensor. The wheel sensor and the method for judging the train moving parameters using the wheel sensor have the following beneficial effects that the structure is simpler and the cost is lower.
Description
technical field [0001] The invention relates to the field of train vehicle detection, more specifically, to a wheel sensor and a method for judging train running parameters using the sensor. Background technique [0002] At present, the commonly used train detection and axle counting systems in China mainly use two sensor solutions, passive wheel sensors and active wheel sensors, to realize vehicle detection. The passive wheel sensor mainly uses the principle of electromagnetic induction to convert the information of the wheel passing above the sensor into a voltage output. The higher the passing speed, the greater the voltage fluctuation of the sensor output; the lower the passing speed, the smaller the sensor output voltage fluctuation. But passive wheel sensors cannot detect when the wheels are stationary. The active wheel sensor mainly uses the principle of the Hall sensor, and when the wheel stops above the sensor, it can also realize the detection function. However,...
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IPC IPC(8): B61L1/16G01M17/10
Inventor 童云杨柳李俊杰
Owner INVENGO INFORMATION TECH