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Digital train broadcast machine with over-temperature protection and its control method

A technology of train broadcasting and control methods, applied in temperature control, temperature control without auxiliary power supply, non-electric variable control, etc., can solve problems such as damaged equipment and no over-temperature protection mode

Inactive Publication Date: 2008-07-16
赵苏铭
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing technology does not have an over-temperature protection method, and the equipment will be damaged when the temperature is too high

Method used

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  • Digital train broadcast machine with over-temperature protection and its control method
  • Digital train broadcast machine with over-temperature protection and its control method

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Embodiment Construction

[0018] In order to further understand the content, characteristics and effects of the present invention, the following examples are given hereby, and detailed descriptions are as follows in conjunction with the accompanying drawings: Over-temperature protection includes two modes: mechanical mode and program mode; when the program mode works normally, the program The mode works; if the program mode fails, the mechanical temperature controller starts to work after the temperature rises to 90 degrees.

[0019] The power supply of the train automatic broadcaster provides working power for the embedded industrial control computer and other parts; the signal source conversion, volume control and monitoring control modules input the status signal to the input port of the industrial control computer, and the control input interface also inputs the signal to The input port of the industrial control computer, through the control bus, the industrial control computer inputs control signal...

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Abstract

The invention relates to a digital train broadcaster with overtemperature protection function and a control method thereof. The broadcaster is characterized in that: the broadcaster comprises an industrial control computer, a digital power amplifier as well as a digital temperature sensor and a mechanical temperature controller arranged on the radiator positioned inside the digital power amplifier, wherein the digital temperature sensor inputs temperature signal to the input end of the industrial control computer; the industrial control computer inputs the signal controlling the power fluctuation of the digital power amplifier to the digital power amplifier; moreover, the normally closed contact of the mechanical temperature controller is connected in series with the power input signal circuit of the digital power amplifier. The invention ensures the safe operation of equipment, thereby ensuring the normal broadcasting of arriving and departure notification of a train.

Description

technical field [0001] The invention belongs to a train broadcaster, in particular to a digital train broadcaster with over-temperature protection and a control method. Background technique [0002] The existing technology does not have an over-temperature protection method, and the equipment will be damaged when the temperature is too high. Contents of the invention [0003] In order to solve the technical problems in the known technology, the present invention provides a digital train broadcaster with over-temperature protection and a control method for preventing the power amplifier from being overheated and damaging the equipment. [0004] The present invention adopts to solve the technical problems existing in the known technology about the technical scheme of the digital train broadcasting machine with overtemperature protection: it includes an industrial control computer and a digital power amplifier, and also includes a digital power amplifier set in the A digital...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D23/20G05D23/08H02H5/04
Inventor 赵苏铭李唯平邹检赵惟善
Owner 赵苏铭