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Multiple protocol control machine for on-line monitoring of expressway

A technology for networked monitoring and highways, applied in data exchange networks, digital transmission systems, electrical components, etc., can solve problems such as limitations, and achieve the effect of ensuring safety and reliability.

Inactive Publication Date: 2007-04-25
黄卫 +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing expressway networking monitoring products are limited to networking monitoring based on one brand

Method used

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  • Multiple protocol control machine for on-line monitoring of expressway
  • Multiple protocol control machine for on-line monitoring of expressway
  • Multiple protocol control machine for on-line monitoring of expressway

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0020] Embodiment: highway network monitoring multi-protocol control machine, is made up of CPU module, network module, serial port expansion module, communicates through ISA bus between CPU module and network module, passes through ISA bus communication between CPU module and serial port expansion module; The module is connected to the Ethernet network; the serial port expansion module is connected to the analog video matrix module, digital video matrix module, video keyboard and serial port network.

[0021] The network module is composed of the RTL8139 chip and the peripheral network transformer circuit, as shown in Figure 2, to complete the mutual conversion between the network monitoring standard protocol and the Ethernet network.

[0022] The serial port expansion module includes 16C554 chip, MAX232 chip and MAX485 chip. MAX232 chip is responsible for RS232 signal conversion, MAX485 chip is responsible for RS485 signal conversion. The serial port expansion module comple...

Embodiment approach

[0042] 1). Expressway networking monitoring multi-protocol controllers are connected in tree form through serial ports, as shown in Figure 9.

[0043] 2) The multi-protocol control machine for expressway networking monitoring is connected through a network loop, as shown in Figure 10.

[0044] 3) The multi-protocol controller for expressway networking monitoring is connected through a mixed network and serial port, as shown in Figure 11.

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PUM

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Abstract

The invention relates to a high-speed road network detection multi-protocol controller, formed by CPU, network module, and serial expandable module. Wherein, CPU and network module are communicated with ISA bus; CPU and serial expandable module are communicated via ISA bus; network module is connected to Ethernet; the serial expandable module is connected to analogue video matrix module, digit video matrix module, video keyboard and serial network. The invention can realize inter-connect and inter-control of traditional analogue closed TV detecting system and digit video system.

Description

1. Technical field [0001] The invention is a multi-protocol control machine suitable for expressway networking monitoring, compatible with multiple analog video matrixes, digital video matrixes and control keyboards, and supports network alarms and multiple networking modes. 2. Background technology [0002] At present, expressways have been networked on a large scale, and surveillance video networking is an inevitable trend. Due to the staged construction of expressway monitoring and control technology, due to the lack of unified standards, interconnection, intercommunication and mutual control cannot be realized. Moreover, with the rapid development of digital video technology, the problems of interconnection, intercommunication and mutual control between traditional analog closed-circuit television monitoring system and digital video system must be solved. Existing expressway networking monitoring products are limited to networking monitoring based on one brand. 3. Con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L12/00
Inventor 黄卫高朝晖陈里得秦福生
Owner 黄卫
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