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A kind of self-checking circuit applied to aviation electric heating control system

A technology of control system and self-test circuit, which is applied in general control system, control/adjustment system, test/monitoring control system, etc., and can solve the problems of unrecognized open circuit fault mode, unrecognized wrong output instructions, and failure to collect processor instructions, etc. question

Active Publication Date: 2022-07-08
TIANJIN JINHANG COMP TECH RES INST
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  • Abstract
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AI Technical Summary

Problems solved by technology

Disadvantages of the self-inspection circuit of the traditional aviation electrothermal control system: 1. Since there is no output current detection of the output circuit, only the detection of the output voltage, no specific voltage value is detected, and when the circuit is open, the failure mode of the open circuit cannot be identified; 2. The on-off instruction judgment is based on the instruction of the processor operation, and the instruction output by the processor is not collected. When the on-off instruction is output by mistake, the wrong output instruction cannot be identified

Method used

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  • A kind of self-checking circuit applied to aviation electric heating control system

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Embodiment Construction

[0028] In order to make the purpose, content, and advantages of the present invention clearer, the specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0029] like figure 1 As shown, the present invention provides a self-checking circuit applied to an aviation electrothermal control system, including a processor circuit, a drive circuit, an output command retrieval circuit, a power output circuit, an input AC voltage acquisition circuit, an output AC voltage acquisition circuit, an output AC voltage acquisition circuit, and an output AC voltage acquisition circuit. AC current acquisition circuit;

[0030] The processor circuit is connected with the drive circuit, and the processor circuit is used for outputting a control signal to the drive circuit to control the power output circuit to be turned on and off;

[0031] The processor circuit is connected with the output instruction ...

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Abstract

The invention relates to a self-checking circuit applied to an aviation electric heating control system, and belongs to the technical field of aviation electric heating control systems. The self-check of the control system realizes the status judgment and positioning of the on-off output function, power output function, normal output circuit, open circuit and short circuit of the processor.

Description

technical field [0001] The invention relates to the technical field of aviation electric heating control systems, in particular to a self-checking circuit applied to an aviation electric heating control system. Background technique [0002] The aviation electric heating system uses the AC power supply on the aircraft to supply power to the heating element or pipeline valve, and feeds back the real-time temperature according to the surface temperature sensor of the heating element, and controls the output loop to be turned on and off periodically to maintain the heating element or pipeline at a certain temperature. within the range. The working principle of the self-checking circuit of the traditional aviation electric heating control system is usually to judge the working state of the control system by detecting the presence or absence of the output circuit voltage and comparing it with the output on-off command. Disadvantages of the self-test circuit of the traditional avi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B23/02G01R19/25
CPCG05B23/0208G01R19/25Y02P90/02
Inventor 仝步升刘强马云峰
Owner TIANJIN JINHANG COMP TECH RES INST
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