High-reliability double-redundancy integrated control module based on microcontrollers
A control module and integrated control technology, applied in the direction of program control, computer control, general control system, etc., can solve the problem that the control signal cannot be output normally, and achieve the effect of preventing abnormal execution failure and improving reliability.
Active Publication Date: 2017-12-22
BEIJING AEROSPACE AUTOMATIC CONTROL RES INST +1
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But the more likely situation is that the control logic of the microcontroller fails, resulting in the failure of the normal output of the control signal, so it is necessary to use the redundancy of the microcontroller to improve the stability of the control signal output
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[0043] A kind of microcontroller-based highly reliable dual-redundant integrated control module function in the embodiment of the present invention is realized by 2 independent, redundant board cards with microcontroller, and function includes: I / O type control signal The output and test of the input analog quantity, the serial port network communication control and the clock synchronization between redundant modules.
[0044] like figure 1 As shown, the board uses the BM3101 SoC of the SparcV8 architecture as the microcontroller, and its structure is as follows figure 1 As shown, at the same time, the 2M FALSH chip is expanded to store the control logic program in the operation and SoC. The microcontrollers are identical, and the microcontrollers include expansion modules: a serial bus communication interface module, a 1553B bus communication interface module, at least two timer modules, a general I / O input and output interface module and a counter module.
[0045] The conf...
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The invention discloses a high-reliability double-redundancy integrated control module based on microcontrollers. The high-reliability double-redundancy integrated control module includes a principal control module and a subordinate control module which are mutually redundant. After receiving an externally input I / O control signal output command, the principal control module and the subordinate control module generate corresponding effective I / O control signals. Logic 'OR' operation is carried out on the two I / O control signals generated by the principal control module and the subordinate control module. When either I / O control signal is 'effective', the 'effective' I / O control signal is output. The microcontrollers of the mutually redundant principal and subordinate control modules collect the I / O control signal states output by each other in real time, carry out fault interpretation according to the corresponding I / O control signal states of the principal and subordinate control modules, output the interpretation results, collect the execution results of the corresponding I / O control signals in real time, and output the execution results. The stability and reliability of control signal transmission are increased.
Description
technical field [0001] The invention relates to a high-reliability dual-redundancy integrated control module based on a microcontroller, which is used for the internal control test of a measurement and control system and belongs to the field of electronic and electrical control. Background technique [0002] In electronic equipment, measurement and control instruments, and intelligent products, I / O control signals are usually used as a system function state transition control signal to control the system from one working state to another. The reliability of its output usually determines whether the working state of the system can be switched normally and whether the function can be completed normally. A common method is to use redundancy to improve its reliability. The form of redundancy can be divided into redundancy at the output signal and redundancy at the control output. The redundancy of the output signal usually leads the signal output from the microcontroller into ...
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Login to View More IPC IPC(8): G05B19/048G05B23/02
CPCG05B19/048G05B23/0213
Inventor 高飞崔宇邱枫刘思东丁万兵叶绍凯李慧隋强强仲宇张磊
Owner BEIJING AEROSPACE AUTOMATIC CONTROL RES INST