Multi-channel serial analog serial-to-parallel processing equipment and method thereof
A technology of processing devices and analog quantities, applied in simulators, general control systems, instruments, etc., can solve the problems of resource occupancy and interruption time, adverse device operation reliability, fast and sensitive protection of exports, etc., to reduce costs and improve market competition. Advantages, the effect of improving anti-interference performance
Inactive Publication Date: 2009-02-04
JIANGSU WISCOM TECHNOLOGY CO LTD
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On the other hand, since the processing of analog quantities consumes a large amount of resources of the main CPU and occupies most of the interrupt time, and the main CPU must also handle other tasks such as protection, communication, and display, the load of the main CPU is almost saturated. Conducive to the reliability of device operation and the rapid and sensitive protection of outlets
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[0019] The serial / parallel processing device of the multi-channel serial analog quantity of the present invention comprises an analog quantity input / low-pass filter 1, a multiplex switch 2, an operational amplifier 3, an analog quantity conditioning circuit 4, and a serial analog / digital converter 5 , field programmable gate array 6; wherein, analog input / low pass filter 1, multiplex switch 2, operational amplifier 3, analog conditioning circuit 4, serial analog / digital converter 5, field programmable gate array 6 are sequentially connected in series, the output terminal of the channel selection signal of the field programmable gate array 6 is connected to the input terminal of the channel selection signal of the multiplexer 2, and the output terminal of the conversion / read command of the field programmable gate array 6 is connected to the serial The input end of the conversion / reading command of the analog / digital converter 5; the input end of the analog input / low-pass filter ...
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The invention relates to a multi-channel serial analog series-parallel processing device and a method thereof, which processes the multi-channel serial analog processing data into a synchronization and parallel digital signal through field programmable gate array components for a main CPU use, and is capable of greatly decreasing the load of the main CPU and improving the efficiency and reliability of the system when being used in various power automation equipment. The device comprises an analog input / low pass filter (1), a multi-channel switch (2), an operational amplifier (3), an analog conditioning circuit (4), a series A / D converter (5) and a field programmable gate array (6). The field programmable gate array (6) is applied to control the multi-channel switch (2) and the series A / D converter (5) to obtain all the conversion data of the channels to be collected and converses into the parallel data read by the main CPU. The whole circuit of the invention is of compact, lower cost, lower power consumption, etc.
Description
technical field [0001] The present invention processes multi-channel serial analog quantity processing data into synchronous and parallel digital signals through a field programmable gate array device, which is used by the main CPU and used in various electric automation devices, which can greatly reduce the main CPU Load, improve system efficiency and reliability. It belongs to the technical field of electric automation device manufacturing. Background technique [0002] In the power system, various protection measurement and control devices and automatic devices based on electrical quantities need to collect and process analog quantities such as voltage and current on site, and use them as criteria for measurement display and protection outlets. Among all processing tasks of protection measurement and control devices and automatic devices, the workload and real-time requirements of analog processing are the highest, and it is also a prerequisite for realizing other functi...
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IPC IPC(8): G05B19/048
Inventor 伍道勇郭伟过伟李杰李兵肖剑峰
Owner JIANGSU WISCOM TECHNOLOGY CO LTD