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Special-purpose 4G wireless intelligent network bridge for industrial metering pump remote monitoring

A technology of remote monitoring and metering pump, applied in the direction of bus network, wireless communication, network interconnection, etc., can solve problems such as network security, and achieve the effect of ensuring integrity

Active Publication Date: 2017-09-15
ZHEJIANG UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, a large number of short-frame datagrams are transmitted in wireless channels, which will naturally cause problems such as network security.

Method used

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  • Special-purpose 4G wireless intelligent network bridge for industrial metering pump remote monitoring
  • Special-purpose 4G wireless intelligent network bridge for industrial metering pump remote monitoring
  • Special-purpose 4G wireless intelligent network bridge for industrial metering pump remote monitoring

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with the accompanying drawings.

[0028] Such as figure 1 As shown, the 4G wireless intelligent bridge of the present invention is used as a bridge gateway between the CAN bus and the Ethernet to realize mutual communication between the CAN bus and the 4G network. The client PC communicates with the wireless bridge through the 4G wireless network, and the metering pump digital controller communicates with the wireless bridge through the CAN bus.

[0029] Such as figure 2 As shown, the 4G-CAN module is composed. The CAN module 3 described in the figure is composed of a CAN transceiver and a CAN interface. The 4G communication module 4 is composed of an asynchronous serial interface UART and a 4G module (model USR-LTE-7S4).

[0030] The peripheral circuit 2 is the minimum system circuit of the ARM microcontroller 1, including a clock circuit, a reset circuit, a power supply circuit and a JTAG interf...

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Abstract

The invention discloses a 4G wireless intelligent network bridge, for the purpose of satisfying the industrial demand for remote cluster control over an industrial metering pump. The 4G wireless intelligent network bridge comprises a micro controller, a peripheral circuit, a CAN module and a 4G module, wherein the micro controller is connected with the peripheral circuit, the CAN module and the 4G module. The designed 4G wireless intelligent network bridge can realize conversion from CAN protocol data to wireless frame data, and at the same time, can realize conversion from the wireless frame data to the CAN protocol data. According to the invention, the problem of mutual conversion between data in two formats, i.e., the CAN protocol data and the wireless frame data is solved. For the purpose of solving the problems of poor real-time performance, incapability of guaranteeing data security, not high pump group onsite efficiency and the like, a priority algorithm is formulated, high, medium and low-priority data in metering pump control is effectively processed, and the real-time performance can be improved. At the same time, an encryption algorithm and a pump group coordinated control algorithm are formulated based on DES.

Description

technical field [0001] The invention relates to the field of cluster control of metering pumps in the process industry, in particular to a remote wireless control using a miniature wireless gateway based on an ARM microcontroller. Background technique [0002] Industrial metering pumps are widely used in process industries such as petroleum, chemical industry, sewage treatment, thermal power plants, environmental protection, and pharmaceuticals. However, there are often strong alkalis, strong acids, and toxic gases in actual industrial sites, which are inconvenient for manual operation. It is urgent to use industrial field buses (such as CAN) and Ethernet technology to realize networked remote cluster control. [0003] In the cluster control of metering pumps, it is necessary to distinguish the priority of the data and treat them differently. For example, the fault information of the drive motor, the fault information of the controller, and the upper and lower limit alarm in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/40H04L12/46H04W28/06H04W28/14H04W88/16
CPCH04L12/40097H04L12/4633H04L2012/40215H04W28/065H04W28/14H04W88/16
Inventor 王申健李康康陈以恒顾煜佳余世明何德峰
Owner ZHEJIANG UNIV OF TECH
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