Wireless monitoring module for producing workshop based on Bluetooth wireless communication

Abstract

The invention relates to a wireless monitoring module for a producing workshop based on Bluetooth wireless communication, specifically, the wireless monitoring module for the producing workshop for performing site real-time monitoring. The wireless monitoring module comprises a monitoring terminal having a Bluetooth function, a Bluetooth wireless module, an operation processing unit and a CAN (Controller Area Network) bus interface module, wherein the monitoring terminal having the Bluetooth function is connected and communicated with the Bluetooth wireless module through a Bluetooth 2.0 EDR (Enhanced Data Rate) mode wireless communication protocol; the Bluetooth wireless module is connected with an operation control unit in a serial communication connection mode; and the operation control unit is connected with a CAN bus of the producing workshop through a CAN bus interface and carries out information exchange and control with the remaining control nodes. The wireless monitoring module can be used for reducing the cost of the monitoring module.

Description

technical field [0001] The invention relates to an industrial site wireless monitoring device. Specifically, it is a wireless monitoring module for production workshops that uses smart phones, PDAs, and portable computers with Bluetooth wireless communication functions to monitor the controllers of manufacturing equipment in real time. Background technique [0002] At present, most of the manufacturing workshops adopt a distributed control structure, and each device has an independent calculation control unit. In order to meet the characteristics of large data exchange, real-time performance and high reliability requirements of the modules, the CAN bus is used between the entire distributed controllers. to communicate. [0003] During the production process, it is necessary to monitor the working status, working parameters, processing quantity and other parameters of the manufacturing equipment, and fully understand the operating status of each equipment. Sometimes it is ne...

AI Technical Summary

Problems solved by technology

Traditional intelligent terminals are developed based on the RS232 serial communication protocol or CAN bus. Serial communication has disadvantages such as poor data transmission reliability, low transmission rate, short transmission distance, and poor anti-interference ability in the equipment working environment, resulting in controllers and monitors. Terminal communication tasks are heavy, limiting the number of parameter transmissions

In addition, it is necessary to customize a dedicated serial port cable for the monitoring terminal. The wiring in the electrical control cabinet is complicated and cumbersome, and it is also dangerous and inconvenient.

Since the monitoring terminal generally does not have a CAN communication interface, the monitoring terminal must be equipped with a CAN communication interface card in order to use the CAN communication protocol for monitoring, and the CAN communication interface card is very expensive, which greatly increases the cost of the monitoring module.

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