Multi-channel real-time data acquisition system
A real-time data acquisition, multi-channel technology, applied in general control systems, control/regulation systems, instruments, etc., can solve the problems of low data transmission rate, single signal channel number, and inability to collect multi-channel signals in parallel, so as to save switches Effects of conversion time and delay, cost reduction, board area saving and hardware resource saving
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[0020] see Figure 1 to Figure 4 , the present invention provides a kind of technical scheme: a kind of multi-channel real-time data acquisition system, comprises FPGA controller 1 and data transmission module 2, and described FPGA controller 1 adopts the FPGA of Spartan-3 series as PCI data transmission control FPG, uses To realize PCI9054 interface control, SDRAM read and write operation control and LVDS interface control, the bidirectional port of the FPGA controller 1 is electrically connected to three A / D converters 3 through control lines, wherein the two A / D converters 3. Receive the control signal processed by the signal conditioning circuit 4, and another A / D converter receives the switch signal processed by the signal conditioning circuit. The A / D converter selects the Max1308 chip as the core chip of the signal acquisition circuit, and supports multiple Simultaneous sampling of up to 8 channels adopts high precision, and the input end of the signal conditioning circ...
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