Vehicle speed measuring method based on radio frequency identification technology

A radio frequency identification technology and vehicle speed technology, which is applied in the traffic control system of road vehicles, cooperative operation devices, instruments, etc., can solve the problems of low speed measurement accuracy, high cost, high maintenance cost, etc., and achieve the effect of ensuring measurement accuracy

Inactive Publication Date: 2011-10-26
NORTHEASTERN UNIV
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Problems solved by technology

[0002] The actual application of traditional instrument speed measurement can be mainly divided into three major speed measurement systems at this stage: radar speed measurement, laser speed measurement, and coil speed measurement. These three speed measurement methods have high accuracy, but they all inevitably have their own defects. , the cost of radar speed measurement is high, affected by clutter interference, the false alarm rate is high; the cost of laser speed measurement is high, the ring influence factor is large (rainy day), the cost is high; the cost of coil speed measurement is high, and th

Method used

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  • Vehicle speed measuring method based on radio frequency identification technology
  • Vehicle speed measuring method based on radio frequency identification technology
  • Vehicle speed measuring method based on radio frequency identification technology

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Embodiment

[0037] Such as figure 2 As shown, the embodiment of the present invention adopts 4 RFID readers to distribute points on the measurement road section, and the distance between adjacent RFID readers is 50m;

[0038] Such as figure 1 As shown, the hardware system for measuring vehicle speed based on radio frequency identification technology of the present invention includes a front-end machine reader group module and a vehicle data management center module;

[0039] The front-end machine reader group module includes an RFID reader, an ARM core control board TQ2440, a first wireless communication GPRS / GSM module, and a second wireless communication GPRS / GSM module;

[0040] Described RFID reader-writer comprises microcontroller AT89S52, RFID read-write module, and microcontroller is connected with RFID read-write module through SPI interface;

[0041] The ARM core control board TQ2440 communicates with the first wireless communication GPRS / GSM module and the second wireless com...

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Abstract

The invention provides a vehicle speed measuring method based on radio frequency identification technology, belonging to the traffic transportation technology field. The method comprises the following steps: detecting passing vehicle information on a measurement road; sending the vehicle information to a vehicle data management center; processing calculated vehicle speed based on least spuares with the vehicle data management center. According to the method in the invention, precision of vehicle speed measurement in a long distance is guaranteed. The method can be widely used for speed measurement of vehicle running on a road.

Description

technical field [0001] The invention belongs to the technical field of transportation, in particular to a method for measuring vehicle speed based on radio frequency identification technology. Background technique [0002] The actual application of traditional instrument speed measurement can be mainly divided into three major speed measurement systems at this stage: radar speed measurement, laser speed measurement, and coil speed measurement. These three speed measurement methods have high accuracy, but they all inevitably have their own defects. , The cost of radar speed measurement is high, affected by clutter interference, the false alarm rate is high; the cost of laser speed measurement is high, the ring influence factor is large (rainy day), the cost is high; the cost of coil speed measurement is high, and the application field is limited. Automatic speed measuring devices are usually placed on important highways, which are not only bulky and expensive, but also have a...

Claims

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Application Information

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IPC IPC(8): G08G1/052G06K17/00
Inventor 姜琳颖张珩谭汉青王帅
Owner NORTHEASTERN UNIV
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