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Method and system of controlling network communication of automation based on blue-tooth technique

An automation network and bluetooth communication technology, applied in the field of automation network control system, can solve the problems of restricting the flexible change of the mobile network structure of field equipment, and achieve the effect of improving anti-interference ability, avoiding interference influence and reducing energy consumption

Inactive Publication Date: 2003-11-12
CHONGQING UNIV OF POSTS & TELECOMM
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Problems solved by technology

At present, although Ethernet is applied to the network automation control of field devices due to its advantages of high bandwidth, low cost, mature technology and easy maintenance, etc., due to the need for wiring networking, in industrial control applications, the cost of wiring sometimes greatly exceeds The cost of other control equipment, and the connection of cables restricts the movement of field devices and the flexible change of network structure
Especially in some unpredictable environments, or field-level equipment in strong corrosion and harsh environments that are not suitable for wiring, the application of Ethernet for automatic control is limited

Method used

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  • Method and system of controlling network communication of automation based on blue-tooth technique

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Embodiment Construction

[0061] The present invention can consist of figure 1 There are 4 forms such as the wireless network / wireless and wired hybrid network shown.

[0062] The embodiment of field-level bluetooth controller in the present invention is such as Figure 7 As shown in --15, the main components include Rabbit2200 core module, Bluetooth module, A / D conversion module; D / A conversion module, liquid crystal display module, power monitoring chip, power generation chip and photoelectric isolation device.

[0063] In the embodiment of field level bluetooth controller among the present invention: the serial port baud rate that bluetooth module adopts is 57600bps; The working frequency of microprocessor is 22.1184MHz; The working voltage of bluetooth module is 3.3V, and this needs a 5V to 3.3V The voltage conversion circuit; the chip in the picture does not indicate the power supply lead is to provide 5V voltage.

[0064] Embodiments of the field-level bluetooth communication module in the uti...

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Abstract

The method mainly includes setting up field grade of Bluetooth controller, field grade of Bluetooth switch in device and field grade of Bluetooth communication module. The techniques of definition and processing of priority level, priority power change-over and overlapped word mapping interface which are carried out at application layer of Ethernet communication protocol and Bluetooth communication protocol are used to adapt to the various requirements of field grade control.

Description

technical field [0001] The invention relates to Bluetooth wireless communication technology, automatic control technology, data acquisition technology, industrial Ethernet technology, photoelectric isolation technology, industrial data communication technology and industrial field adaptability technology, specifically a Bluetooth-based A technical network communication method and an automatic network control system. technical background [0002] Field devices: including transmitters, sensors, and actuators; field intelligent devices: including smart transmitters, smart sensors, and smart actuators, etc. are the objects of industrial control. At present, although Ethernet is applied to the network automation control of field devices due to its advantages of high bandwidth, low cost, mature technology and easy maintenance, etc., due to the need for wiring networking, in industrial control applications, the cost of wiring sometimes greatly exceeds The cost of other control equ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08C17/02H04B5/48H04L12/26H04L29/06H04L29/10
Inventor 王平
Owner CHONGQING UNIV OF POSTS & TELECOMM
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