LED display control system for industrial automation metering and measuring equipment based on wifi control
A technology for industrial automation and measuring equipment, applied in the direction of static indicators, instruments, etc., can solve the problems of inconvenient, unsuitable for industrial automation measuring and measuring equipment, and the measurement results cannot be connected with terminal equipment in time, so as to achieve good compatibility and structure Simple, easy-to-use effects
Active Publication Date: 2016-12-07
卢治中
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Problems solved by technology
[0002] At present, the control technology of LED display is divided into two categories. One is CRT synchronous display. This mode of mapping PC graphics card is not suitable for industrial automation measurement and measurement equipment. The other is asynchronous mode, that is, the mode of dumping and carousel , this mode is to store the information to be displayed on the control board of the LED display and then play it in turn on the control board. The metering and measuring equipment cannot connect the measurement results with the terminal equipment in time, which has caused great inconvenience to the actual industrial automation production
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[0020] The technical solution of the present invention is further described below in conjunction with the accompanying drawings, but the scope of protection is not limited to the description.
[0021] Such as figure 1 , an LED display control system for industrial automation metering and measuring equipment based on WiFi control, which is composed of a drive interface unit 1, a main control unit 2, a logic conversion unit 3, and an interface unit 4, wherein:
[0022] Such as figure 2 , the drive interface unit 1 is connected with the external serial port and the WiFi wireless interface module, and receives the control signals from the external serial port and the WiFi wireless interface module. After the RX / TX signal of the port undergoes level and timing conversion, the processing command data stream is obtained, and the processing command data stream is sent to the main control unit 2;
[0023] Such as image 3 , the main control unit 2 is composed of single-chip microco...
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The invention discloses an LED (Light Emitting Device) display control system of industrial automatic metering and measuring equipment under WiFi (Wireless Fidelity) control. The LED display control system consists of a driving interface unit, a master control unit, a logic conversion unit and an interface unit, wherein the driving interface unit is connected with external serial ports and a WiFi wireless interface module, the driving interface unit consists of two conversion circuits, the master control unit consists of a single chip microcomputer, an SRAM (Static Random Access Memory) and a FlashRom, the logic conversion unit consists of a CPLD (Complex Programmable Logic Device) and a peripheral circuit, and the interface unit consists of a plurality of sockets and a power supply circuit. The LED display control system has the benefits that a WiFi unvarnished transmission technology is utilized under the condition of reserving synchronous control based on rs232 / 485, the compatibility is great, the display of an LED instrument and the networking of the metering and measuring equipment are realized, and the real-time data and the process of the metering and measuring equipment are synchronously displayed by the LED instrument. The LED display control system also has the characteristics of simple structure and convenience in use.
Description
technical field [0001] The invention relates to an LED display control system for industrial automatic metering and measuring equipment based on WiFi control, and belongs to the technical field of display control. Background technique [0002] At present, the control technology of LED display is divided into two categories. One is CRT synchronous display. This mode of mapping PC graphics card is not suitable for industrial automation measurement and measurement equipment. The other is asynchronous mode, that is, the mode of dumping and carousel , this mode is to store the information to be displayed on the control board of the LED display and then play it in turn on the control board. The metering and measuring equipment cannot connect the measurement results with the terminal equipment in time, which has caused great inconvenience to the actual industrial automation production. Contents of the invention [0003] The purpose of the present invention is to provide an LED d...
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IPC IPC(8): G09G3/32
Inventor 卢治中
Owner 卢治中