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Vehicle identification system, electronic tag reader and multi-rate decoding and matching method

A vehicle electronic tag and matching method technology, applied in the field of vehicle identification system, electronic tag reader and multi-rate decoding and matching, can solve the problem of unable to support signal decoding, etc., to improve anti-interference ability, improve stability and reliability Effect

Active Publication Date: 2021-08-31
SHENZHEN GENVICT TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a vehicle identification system, an electronic tag reader and Multi-rate decoding matching method

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  • Vehicle identification system, electronic tag reader and multi-rate decoding and matching method
  • Vehicle identification system, electronic tag reader and multi-rate decoding and matching method
  • Vehicle identification system, electronic tag reader and multi-rate decoding and matching method

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Embodiment Construction

[0049] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0050] figure 1 It is a flow chart of Embodiment 1 of the multi-rate decoding and matching method of the present invention. The multi-rate decoding and matching method of this embodiment is applied in a vehicle-mounted electronic tag reader, and specifically includes the following steps:

[0051] Step S10. Processing and AD sampling the returned signal of the vehicle electronic tag to obtain an AD sampling signal.

[0052] In this step, after the vehicle-mounte...

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Abstract

The invention relates to a vehicle identification system, an electronic tag reader and a multi-rate decoding and matching method. After the multi-rate decoding and matching method processes the return signal of the vehicle-mounted electronic tag and obtains the AD sampling signal through AD sampling, the following steps are performed: : Carry out digital band-pass filter processing to the AD sampling signal to obtain a band-pass filter signal; convert the rate of the band-pass filter signal according to the reverse link rate of the return signal, so that the converted rate is equal to Decoding the data rate; performing low-pass filtering processing on the rate-converted signal to obtain a low-pass filtering signal, and sending the low-pass filtering signal to a decoder for decoding. The implementation of the technical scheme of the present invention enables the decoder to perform decoding processing at a fixed rate without affecting the performance and speed of decoding, and realizes decoding at various rates with very few resources.

Description

technical field [0001] The invention relates to the field of intelligent transportation (Intelligent Transportation System, ITS), in particular to a vehicle identification system, an electronic tag reader and a multi-rate decoding and matching method. Background technique [0002] The electronic license plate is the electronic identification of the car, which is an electronic ID card that combines the ordinary license plate with UHF radio frequency identification technology (Radio Frequency Identification, referred to as RFID). As the basis of intelligent transportation, automotive electronic identification can help traffic control departments realize fine management of vehicles, guide the revolution of the intelligent transportation industry, and drive the upgrade of the comprehensive traffic management system. In addition, electronic license plates are also one of the entrances to the Internet of Vehicles. Traffic big data obtained through electronic license plates will be...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K7/10H04B5/00H04L1/00
CPCH04L1/0013H04L1/0067G06K7/10009H04B5/77
Inventor 李微
Owner SHENZHEN GENVICT TECH