Collecting and controlling device for date of environmental protection with multiple network interface based on two-level architecture

Abstract

This invention discloses one environment friend data collection control device based on double layer rack, which comprises one host machine and several sub machines, wherein, the host and sub machines adopt star topological structure; host inner data unit is to collect local layer data; sub machine is as extensive data unit to collect remote layer data to form the online monitor; host sets multiple upper network interfaces into public communication network.

Description

technical field [0001] The invention relates to the field of data collection and control, in particular to a substation device in an Internet / Intranet-oriented remote online collection and control system for environmental protection data. Background technique [0002] As the technical department of the national environmental protection system, the environmental monitoring department is an important basis for environmental management. With the enhancement of citizens' environmental awareness, more and more people begin to care about the quality of their environment and demand transparency in environmental protection work; higher-level authorities also need large-scale, diverse, and fast-updating information. Obviously, this raises a problem that should be paid attention to by the environmental monitoring department: how to establish an environmental protection data collection and control system with strong practicability, wide coverage and good flexibility to meet the needs o...

AI Technical Summary

Problems solved by technology

[0004] At present, there are two methods of environmental protection data acquisition and control: one is the industrial computer method, which provides strong data processing and communication functions, but has high power consumption, high cost, short effective radius of the network, and poor mobility. The transmission device has a short trouble-free working time; the other is the modular embedded method, with weak data processing and communication functions, and most embedded systems are still in the stage of individual application. Sharing and communication, can use CAN, LONWORKS, RS-232C and RS-485 / 422 bus network

But the same network has a shorter effective radius and is isolated from the public network

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