Signal processing method and device applied to responder and responder

A signal processing device and signal processing technology, applied in electrical components, transmission systems, etc., can solve problems such as increased power consumption of clock signals, improve frequency accuracy and demodulation effect, and solve the effect of increasing technical complexity

Active Publication Date: 2011-01-05
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention provides a signal processing method, device and transponder applied to the transponder, so as to solve the problem of increased power consumption caused by the transponder using its own crystal oscillator to generate the clock signal in the prior art. The specific solution as follows:

Method used

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  • Signal processing method and device applied to responder and responder
  • Signal processing method and device applied to responder and responder
  • Signal processing method and device applied to responder and responder

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Experimental program
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Embodiment 1

[0034] The flow of the signal processing method applied to the transponder disclosed in this embodiment is as follows: figure 2 shown, including:

[0035] Step S21, distributing the power signal received by the transponder into a clock frequency signal and a carrier energy signal meeting a preset ratio;

[0036] When the train runs to the effective range of the transponder, the transponder receives the power signal sent by the train, and according to the needs of the transponder, distributes the power of the received power signal, part of which is used as an energy signal for power supply, and part of which is used as a clock signal. to sync. The distribution ratio can be set according to the actual situation, the ratio of the clock frequency signal to the carrier energy signal can be 1:2, or other values. Since the clock frequency signal is mainly used to obtain the clock frequency therefrom, the requirement for energy is low, so the proportion of the clock frequency signa...

Embodiment 2

[0045] The signal processing method applied to the transponder disclosed in this embodiment is as follows: image 3 shown, including:

[0046] Step S31, filtering out the clutter in the power signal received by the transponder;

[0047] In system design, high-frequency signal lines, integrated circuit pins, various connectors, etc. may become radiation interference sources with antenna characteristics, which can emit electromagnetic waves and affect the normal operation of other systems or other subsystems in the system. Therefore, a filtering step is usually added to filter out the influence of space radiation on the power signal, reduce the interference in the signal, and improve the stability of the signal. Band-pass filters are usually used to filter out high-frequency waves outside the frequency band of the received power signal.

[0048] Step S32, distributing the filtered power signal into a clock frequency signal and a carrier energy signal meeting a preset ratio;

...

Embodiment 3

[0056] The signal processing method applied to the transponder disclosed in this embodiment is as follows: Figure 4 shown, including:

[0057] Step S41, filtering out the clutter in the power signal received by the transponder;

[0058] Step S42, distributing the filtered power signal into a clock frequency signal and a carrier energy signal conforming to a preset ratio;

[0059] Step S43, converting the clock frequency signal into a clock signal;

[0060] Step S44, performing voltage doubler rectification on the carrier energy signal to obtain a DC energy signal;

[0061] This embodiment adopts a voltage doubling rectification method to convert an AC signal into a DC signal while increasing the voltage value of the DC signal, prolonging the power supply time for the transponder, and improving the working performance of the transponder.

[0062] Step S45, adjusting the voltage of the DC energy signal to the rated voltage value of the control module;

[0063] The voltage o...

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Abstract

The invention discloses a signal processing method and a signal processing device applied to a responder and the responder. The method comprises the following steps of: distributing a power signal received by the responder to be a clock frequency signal and a carrier energy signal which conform to a preset proportion, and converting the clock frequency signal into a clock signal; processing the carrier energy signal to obtain a direct current energy signal; and inputting the direct current energy signal and the clock signal to a memory control module of the responder. In the signal processingmethod applied to the responder disclosed by the embodiment of the invention, the problem of increased power consumption brought by the method for generating a clock frequency by using crystal oscillation in the responder in the prior art is solved by adopting a mode of extracting the clock signal from the power signal. The method further solves the problem of increased technical complexity caused by realizing the transmission of high-energy carrier of vehicle-mounted equipment. Meanwhile, because relative demodulation is performed on the power signal, the frequency accuracy and the demodulation effect are improved, and the complexity and the equipment cost of the system are reduced.

Description

technical field [0001] The invention relates to the radio field, in particular to a signal processing method, device and transponder applied to a transponder. Background technique [0002] The transponder is a point device used for information transmission from the ground to the train. At present, the communication transponder system widely used in domestic high-speed railways such as figure 1 As shown, its working principle is: the vehicle-mounted BTM (Battery Test and Maintenance, battery detection and maintenance) module generates a power carrier with a working frequency of 27.095MHz, and transmits it through the antenna installed at the bottom of the locomotive. When the train reaches the effective range of the ground transponder, the ground transponder receives the power signal sent by the on-board module on the train through the antenna 11, converts the received power signal into electric energy through the rectifier circuit 12 and the voltage regulation circuit 13, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/38H04B1/59
Inventor 胡恺珣赵虎
Owner HUAWEI TECH CO LTD
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