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Control system for achieving one-screen multi-machine control over touch screen through short-circuit port

A control system and touch screen technology, applied in general control systems, control/adjustment systems, computer control, etc., can solve the problems of reducing the work efficiency of installation and debugging personnel, complicated management, and multiple software versions, and achieve increased debugging work efficiency, The effect of reducing the overall cost and convenient operation

Active Publication Date: 2015-03-25
BEIJING IN POWER ELECTRIC +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The consequence of this method is that there are too many software versions, complex management, and reduced work efficiency of installation and debugging personnel.

Method used

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  • Control system for achieving one-screen multi-machine control over touch screen through short-circuit port
  • Control system for achieving one-screen multi-machine control over touch screen through short-circuit port

Examples

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Embodiment Construction

[0027] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0028] figure 1 It is the circuit structure diagram of the control system of the present invention. Use STM32F407 as the main control CPU, reserve enough space and resources for function expansion, and lead out USB, 2 RS-485 serial ports and 1 UART. USB is mainly used to upgrade the program, which is convenient for programming without disassembling the chassis For the CPU program, one RS-485 is used to connect to the external touch screen, using MODBUS RTU protocol, and the other RS-485 is used to connect to the host computer. UART is used to interface the driver board. Expanded the IO of multiple digital quantities.

[0029] The touch screen can be a module that has been developed on the market and has a multi-machine function on one screen. It needs to have a 485 interface. According to the communication port of the touch screen and ...

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Abstract

The invention relates to one-screen multi-machine control over a touch screen, in particular to a control system for conducting one-screen multi-machine control over the touch screen by changing the short-circuit mode of an upper circuit port. The control system comprises the touch screen and a master control circuit. The master control circuit comprises a master control CPU. The touch screen is connected with the master control CPU through an RS-485 serial port. The control system is characterized in that a master control circuit IO interface comprises a plurality of short circuit terminals and a jumper cap, the short circuit terminals are connected to the master control CPU, and when the jumper cap is in short-circuit connection with different short circuit terminals, the master control CPU detects the level of each short circuit terminal; the master control CPU configures salve station addresses corresponding to equipment according to the detected level of the IO interface to control the different kinds of equipment. According to the control system, dial switches are arranged on the circuit, so that the current state is defined, the current state is recognized, the corresponding received and transmitted data are determined, and therefore the one-screen multi-machine control mode is achieved.

Description

[0001] technical field [0002] The invention relates to one-screen multi-machine control of a touch screen, in particular to a control system for realizing one-screen multi-machine control of a touch screen by changing the short-circuit mode of ports on a circuit. [0003] Background technique [0004] At present, in the occasions such as street lighting or low-power products, many companies have designed single-phase equipment with 220V input for different power supply environments. If it needs to be used in three-phase power supply occasions, multiple equipment can be used in combination. solution. [0005] Taking the smart energy-saving clean power supply currently on the market as an example, it can be used in single-phase power supply occasions or three-phase power supply occasions. In the case where the three devices are combined into a set of three-phase equipment, it is necessary to monitor the three devices in the set synchronously through a touch screen, and dif...

Claims

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Application Information

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IPC IPC(8): G05B19/042G06F3/041
CPCG05B19/0421G05B2219/2226
Inventor 瞿文慧郭春雨
Owner BEIJING IN POWER ELECTRIC
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