Positioning error compensation method and system based on RFID positioning technology
A technology of positioning error and positioning technology, which is applied in the direction of measuring devices, instruments, induction recording carriers, etc., can solve the problems of inability to large-scale application and expensive implementation, and achieve the effect of solving the problem of inability to locate and eliminating accumulated positioning errors.
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Embodiment 1
[0036] Such as figure 1 As shown, a positioning error compensation system based on RFID positioning technology includes an RFID positioning system 1. The RFID positioning system 1 includes one or two readers 11, several RFID electronic tags 12, a central information system 3, and an encoder 2. , Encoder 2 is set on a double-track steel rail flaw detection vehicle, and is used to count the number of wheel rotations and speeds calculated by the encoder to reflect the mileage and speed of the vehicle. Here, how does the encoder 2 count the number of wheel rotations and The speed can be referred to the prior art, and will not be repeated here; the central information system 3 obtains the number of wheel rotations and speeds calculated by the encoder, and calculates the current mileage according to the encoder coefficient and the number of wheel rotations, and records it as the first mileage, where , The initial value of the encoder coefficient is a preset value stored in the centra...
Embodiment 2
[0050] Based on the error compensation system of Embodiment 1, the embodiment of the present invention also provides a positioning error compensation method based on RFID positioning technology, which corrects the encoder's mileage positioning information based on the mileage information determined by the RFID positioning system positioning to obtain more accurate Mileage positioning information. Such as figure 2 As shown, including the following steps:
[0051] S1: The central information system obtains the number of wheel rotations and speeds counted by the encoder, and calculates the current mileage and vehicle speed based on the encoder statistics based on the encoder coefficient, the number of wheel rotations and the speed, and will record the current mileage based on the encoder statistics Is the first mileage, wherein the initial value of the encoder coefficient is a preset value stored in the central information system;
[0052] The encoder counts the number of wheel rota...
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