Vehicle speed measuring method based on radio frequency identification technology

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...

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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 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 large maintenance burden and expensive maintenance costs, and are not suitable for monitoring and measuring vehicle speeds on long sections of road

[0003] The existing speed measurement system based on RFID (Radio Frequency Identification) has single function, and the built-in algorithm only supports the measurement of simple average speed in a certain distance. Small, not suitable for speed measurement on non-high-speed roads with long distances

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