Receiver electric performance test device for 230MHz electric power private network communication module

Abstract

The invention provides a receiver electric performance test device and test method for a 230MHz electric power private network communication module. The device comprises a message generation module, a baseband stream time sequence control module, a lead code generation module, a modulator module, an end code generation module, a 230MHz radio frequency generation module and transceiving message comparison module. The device and the method have the advantages that 1, receiver electric performance indexes such as receiving sensitivity and receivable frequency offset of a 230MHz private network communication module under special messages can be tested; and 2, information such as frequency and pulse length of a lead code and an end code can be adjusted according to different 230MHz electric power private network communication criteria; length, a frame format and a modulation mode of data frames can be adjusted; criterion demands of different versions can be adapted; and test demands of messages of any code pattern and length can be realized.

Description

Technical field [0001] The invention proposes a 230MHz electric power private network communication module receiver electrical performance test device and test method, which belong to the technical field of wireless communication module performance testing. Background technique [0002] A total of 15 pairs of duplex frequency points and ten single frequency points in the 230 MHz (VHF) frequency band have been approved by the National Radio Management Committee and protected the use of the dedicated power load management system. The 230MHz communication module of the power dedicated network needs to be generated during the reception performance test The radio frequency signal used for testing, the radio frequency signal is modulated by a carrier signal and a baseband signal containing specific information. The baseband signal includes preamble, frame header, data field, check code, end code, etc., and the baseband signal includes a modulation part There are also non-modulation par...

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Problems solved by technology

[0002] A total of fifteen pairs of duplex frequency points and ten simplex frequency points in the 230 MHz (VHF) frequency band are approved by the National Radio Regulatory Commission and protected for use in power load management systems. During the receiving performance test of the 230MHz communication module in the power private network, it is necessary to generate The radio frequency signal used for testing, the radio frequency signal is modulated by the carrier signal and the baseband signal containing specific information, the baseband signal includes preamble, frame header, data field, check code, end code, etc., the baseband signal contains the modulation part There is also a non-modulation part. The general-purpose baseband chip cannot flexibly adjust the generation timing of the baseband signal, and cannot choose whether to modulate or not for different components of the baseband signal. It is difficult to use in the 230MHz communication module test

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