High-precision switching value detecting instrument and detecting method
A detection method and switching value technology, which is applied in the direction of instruments, measuring electronics, measuring devices, etc., can solve problems such as inaccurate accident analysis, untimely response, and delayed event response
Active Publication Date: 2011-07-06
FUJIAN YIRONG INFORMATION TECH
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Problems solved by technology
Currently, the SOE (Sequence of Events) system widely used in substations, power plants and other sites generally has low resolution between input channels and delays in the event response of each input channel transmission circuit, resulting in inaccurate accident analysis and untimely response. , but lack of effective and accurate on-site testing means
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[0011] Such as figure 1 Shown is the principle block diagram of the present invention. As shown in the figure, the present invention is connected with the control output board, keyboard, LCD, power supply and host computer respectively by the display communication board; The upper computer refers to a desktop or notebook computer, the display communication board refers to the CPU adopting MCU, ARM or DSP series single-chip microcomputer, and the control output board refers to the CPU adopting DSP or ARM series single-chip microcomputer, input circuit and output The circuit uses a photocoupler.
[0012] The CPU in the display communication board of the present invention adopts the single-chip microcomputer of MSP430 series in MCU, and its model is M430F149 or M430F169; The model of the single-chip microcomputer of ARM series is AT91RM9200;
[0013] CPU in the control output board of the present invention adopts the single-chip microcomputer of TMS320 series in DSP, and its mo...
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The invention relates to the monitoring or testing of remote communication signals of a power system, in particular to a high-precision switch quantity detector and a detection method for the switch quantity signals of measurement and control devices. The invention adopts the technical proposal that: the high-precision switch quantity detector is respectively connected with a control output board, a keyboard, an LCD, a power supply and an upper computer by using a display communication board; the control output board is respectively connected with a GPS receiving module, a RAM random access memory, a CPLD logic circuit, the power supply, an input circuit and an output circuit for composition; wherein, the upper computer is the desktop computer or the laptop computer, the display communication board refers to a single-chip microcomputer with a CPU of MSP430 or ARM and DSP series, the control output board refers to the single-chip microcomputer with the CPU of TMS320 or ARM series, the input circuit and the output circuit adopt photoelectric couplers. The high-precision switch quantity detector has the advantages of high precision, rich connection points and dual-operation mode.
Description
technical field [0001] The invention relates to the monitoring or testing of the remote signaling signal of the electric power system, in particular to a high-precision switch quantity detector and a detection method for the switch quantity signal of a measurement and control device. technical background [0002] The switching value detector in the background technology mainly refers to the special equipment used for high-speed switching value performance detection for power grid company substations and power generation enterprises. Currently, the SOE (Sequence of Events) system widely used in substations, power plants and other sites generally has low resolution between input channels and delays in the event response of each input channel transmission circuit, resulting in inaccurate accident analysis and untimely response. , but lack of effective and accurate on-site testing means. Contents of the invention [0003] The purpose of the present invention is to provide a s...
Claims
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IPC IPC(8): G01S1/02G01R31/00
Inventor 郑学明江信海黄四平
Owner FUJIAN YIRONG INFORMATION TECH