Power supply monitoring module communicated based on RS485
A RS485 and power monitoring technology, applied in general control systems, simulators, program control, etc., can solve problems such as reporting to the host computer, failure information received by the host computer, and signal transmission errors, etc., to achieve the effect of easy maintenance
Inactive Publication Date: 2013-04-17
ECU ELECTRONICS INDAL
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Problems solved by technology
[0002] At present, if the power supply of the fan inside the radar fails, it is necessary to disassemble the power supply, check the circuit inside the power supply, and repair the fault point. Maintenance is difficult, and the fault point cannot be automatically checked and reported to the host computer, and the host computer cannot receive fault information. , to control the fault point in time
In addition, in environments such as industrial control, there are often electrical noises that interfere with the transmission line. When using RS-232 communication, signal transmission errors are often caused by external electrical interference; in addition, the maximum transmission distance of RS-232 communication does not increase the buffer The case can only reach 15 meters
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[0012] A power supply monitoring module based on RS485 communication, including a main control chip 1 for collecting working information of the power supply to be monitored, the input and output terminals of the main control chip 1 are connected with the input and output terminals of the RS485 communication chip 2, and the input and output terminals of the RS485 communication chip 2 The output terminal is connected to the input and output terminals of the host computer, and the DC-DC power supply module 3 supplies power to the RS485 communication chip 2, such as figure 1 shown.
[0013] Such as figure 2 As shown, the main control chip 1 adopts a PSoC embedded system chip, and its input and output terminals are respectively connected with the power supply to be monitored and the RS485 communication chip 2 . The DC-DC power supply module 3 adopts the EC1SA01N chip, and capacitors C802 and C811 are connected across the first and second pins, and one end of the capacitors C802 a...
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The invention relates to a power supply monitoring module communicated based on RS485, comprising a main control chip which is used for collecting operation information of a power supply to be monitored, wherein an input and output end of the main control chip is connected with an input and output end of an RS485 communication chip, the input and output end of the RS485 communication chip is connected with the input and output end of an upper computer, and a DC-DC power supply module is used for supplying power for the RS485 communication chip. According to the invention, the operating state information of the power supply to be monitored is collected by the main control chip and comprises voltage, current and the like, and the working stage information is transmitted to the upper computer in real time through the RS485 communication chip; and when the power supply to be monitored has fault, a maintainer can check out fault information and a fault point on the upper computer, an exact breakthrough point exists during overhauling, the fault point can be found out without starting the power supply, and the maintenance is convenient.
Description
technical field [0001] The invention relates to the field of power monitoring, in particular to a power monitoring module based on RS485 communication. Background technique [0002] At present, if the power supply of the fan inside the radar fails, it is necessary to disassemble the power supply, check the circuit inside the power supply, and repair the fault point. Maintenance is difficult, and the fault point cannot be automatically checked and reported to the host computer, and the host computer cannot receive fault information. , to control the fault point in time. In addition, in environments such as industrial control, there are often electrical noises that interfere with the transmission line. When using RS-232 communication, signal transmission errors are often caused by external electrical interference; in addition, the maximum transmission distance of RS-232 communication does not increase the buffer The case can only reach 15 meters. Contents of the invention ...
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IPC IPC(8): G05B19/048
Inventor 赵艳汪邦照张进徐高杰赵艳飞
Owner ECU ELECTRONICS INDAL