A test device for voice recording equipment of locomotive radio station
A voice recording and locomotive radio technology, applied in the testing of machines/structural components, measuring devices, instruments, etc., can solve the problems of troublesome operation, uncontrollable recording and testing quality, low degree of automation, etc., to eliminate blind spots and improve testing efficiency. and test quality, the effect of improving the degree of automation
Active Publication Date: 2017-12-08
ZHUZHOU CSR TIMES ELECTRIC CO LTD
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Problems solved by technology
In the existing test technology, the actual locomotive running conditions are not simulated, resulting in the inability to send train number, driver number and time and other driving information to the voice recording equipment of the locomotive radio station through the RS485 communication interface during the test, and cannot form a new voice recording file. The test recording cannot be saved, resulting in blind spots in the test
The existing test method lacks a fixed, adjustable parameter and sound source similar to the actual application on site, resulting in uncontrollable quality of recording test
There are many external accompanying test equipment, the operation is troublesome, and the degree of automation is low, resulting in low test efficiency
Method used
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[0012] like figure 1 As shown, the ARM7 processor sends various commands to the ISD4004 voice chip through the SPI communication control interface, including: power on, specify address pronunciation, and stop playback, so as to control the pronunciation of the ISD4004 voice chip and act as the recording sound source of the system. The ARM7 processor controls the LCD12864 LCD screen to display various test processes, self-test information, operation instructions and test results. During the test operation, the test steps are controlled by the key operation unit, and the operation and display module is composed of the LCD12864 liquid crystal screen. The communication module composed of the UART1 port of the ARM7 processor and the RS485 communication interface after photoelectric isolation can send simulated train operation information, including train number, driver number, and time parameters, so that the voice recording equipment of the locomotive radio station can generate ef...
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The invention discloses a testing device for voice recording equipment of a locomotive radio station, comprising a processor, a voice chip, an RS485 communication interface, a recording channel relay control unit, and a board-level power supply. The processor communicates with the RS485 communication interface through a photoelectric isolation unit Connect; the processor is connected with the voice chip through a communication control interface, the voice chip is connected with the recording channel relay control unit through a power amplification module, and the power amplification module is connected with a loudspeaker; the RS485 communication interface is connected with the voice chip The communication interface connection of the locomotive radio voice recording equipment; the processor controls the recording channel relay control unit to select the test channel of the locomotive radio voice recording equipment; the board-level power supply is controlled by the processor, the voice chip, and the recording channel relay The unit provides power. The testing device of the invention can greatly improve the testing efficiency and testing quality of the voice recording equipment of the locomotive radio station.
Description
technical field [0001] The invention relates to a testing device for voice recording equipment of a locomotive radio station. Background technique [0002] Locomotive radio voice recording equipment is mainly used to automatically record voice signals of flight attendants through the locomotive radio dispatching telephone during locomotive operation, and is widely used in various types of electric locomotives, diesel locomotives, shunting machines and EMUs. During the driving process, the voice recording equipment of the locomotive radio station performs recording work on the one hand, and on the other hand receives the operating data sent by the monitoring device in real time through RS485 communication, so that the voice data and operating data are synchronized in terms of train number, driver number and time. The voice recorded by the equipment is retrieved and played back on the ground through a special dump device, which more realistically reproduces the voice conversat...
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IPC IPC(8): G01M99/00
Inventor 刘浩刘建勇刘震肖成琳曹梦军
Owner ZHUZHOU CSR TIMES ELECTRIC CO LTD