CN103116303B

CN103116303B - Self-closing ring network monitoring system used for temperature monitoring of machine room

Info

Publication number: CN103116303B
Application number: CN201210556583.7A
Authority: CN
Inventors: 杨国田; 焦敏
Original assignee: North China Electric Power University
Current assignee: North China Electric Power University
Priority date: 2012-12-19
Filing date: 2012-12-19
Publication date: 2015-01-21
Anticipated expiration: 2032-12-19
Also published as: CN103116303A

Abstract

The invention discloses a self-closing ring network monitoring system used for temperature monitoring of a machine room in the field of design of a network monitoring system. The technical includes that the self-closing ring network monitoring system comprises a main station, N nodes and a communication cable. Each node is composed of four interfaces, a dial-up switch, a micro single-chip microcomputer, a switch K, a status indicator lamp and a temperature sensor group. The four interfaces include T1, T2, R1 and R2. The self-closing ring network monitoring system has the advantages of providing a self-closing ring network multi-computer structure, achieving temperature measuring by a temperature sensor, achieving node data summarization by a unibus micro single-chip microcomputer, achieving data transmission of each node by self-closing ring network, and improving real time of a system. Meanwhile, the self-closing ring network has the advantages of being simple in network structure, small in size, flexible and convenient to wire and network, low in power consumption and cost and the like.

Description

A kind of self-closing loop network supervisory system for computer room temperature monitoring

Technical field

The invention belongs to Design of Network Monitoring System field, particularly relate to a kind of self-closing loop network supervisory system for computer room temperature monitoring.

Background technology

The security against fire of big-and-middle-sized computer room is directly connected to user, the safety of computing machine itself and building fixture, and once breaking out of fire, in order to avoid loss expands, does not generally allow to adopt sprinkling fire scheme.Therefore real-time monitoring key point temperature is the effective means of fire preventing.

Existing classic method adopts master-slave mode unibus scheme, and specifically using single-chip microcomputer as main control system, be multiplely connected in parallel on bus from machine as node, main frame sends multimachine response, controls each node successively, completes multi-computer communication and exchanges data.Its shortcoming is that master-slave mode requires that main frame has each node ID, when system needs expansion from needing during machine to revise master routine, is unfavorable for system maintenance like this.In addition, owing to adopting polling mode access node, when node has warning message to need to need when sending to wait for main frame, and the stand-by period increases along with number of devices and increases, and reduces the real-time of system.

Summary of the invention

For mentioning classic method deposit system real-time and system maintenance aspect Problems existing in actual applications in background technology, the present invention proposes a kind of self-closing loop network supervisory system for computer room temperature monitoring.

For a self-closing loop network supervisory system for computer room temperature monitoring, it is characterized in that, described system comprises main website, N number of node and telecommunication cable; Described node comprises four interfaces, toggle switch, one chip microcomputer, K switch, status indicator lamp and sets of temperature sensors; Described four interfaces are T1, T2, R1 and R2;

Wherein, described main website is connected with the interface R1 of first node by telecommunication cable;

The interface R1 of described each node links the interface T1 of a upper node by telecommunication cable, N number of node interface T1 and R2 is idle;

Described node 1 is connected by K switch to the internal interface R2 of node N with interface T2;

The interface T2 of described node N is connected with the interface R2 of previous node, and the interface T2 of first node is connected with main website;

The self-closing loop network of described main website and N number of node composition supervisory system;

Described one chip microcomputer is connected with described toggle switch, status indicator lamp and sets of temperature sensors respectively; Described one chip microcomputer is used for processing signal; Described toggle switch is for setting the network address of node; Described status indicator lamp is used to indicate node duty; Described sets of temperature sensors is used for carrying out temperature data acquisition.

Described self-closing loop network comprises two kinds of structures; The first structure is that main website is connected in turn with N number of node, and N node interface T1 is connected with R2; The second structure is that the interface T1 of malfunctioning node connects interface R2, and the node interface R2 after malfunctioning node and T2 disconnects.

Described sets of temperature sensors is connected to one chip microcomputer by IO pin in bus protocol mode.

The invention has the beneficial effects as follows, propose self-closing looped network multi-computer communication structure, temperature sensor is adopted to realize temperature survey, gathered by the micro-chip microcontroller node data of unibus, data transmission is realized by automatically closing looped network between each node, realize the function such as historical record and warning eventually through main frame, improve the real-time of system; Simultaneously self-closing looped network network structure is simple, and volume is little, wiring and networking convenient, flexible, there is the feature such as low-power consumption and low cost.

Accompanying drawing explanation

Fig. 1 is the structural representation of a kind of self-closing loop network supervisory system for computer room temperature monitoring provided by the invention;

Fig. 2 is that self-closing ring-like network structure provided by the invention becomes structural drawing one;

Fig. 3 is self-closing ring network topology structural drawing one provided by the invention;

Fig. 4 is that self-closing ring-like network structure provided by the invention becomes structural drawing two;

Fig. 5 is self-closing ring network topology structural drawing two provided by the invention;

Fig. 6 is loop network node structure provided by the invention composition and relation connected to the network thereof.

Embodiment

Below in conjunction with accompanying drawing, preferred embodiment is elaborated.It should be emphasized that following explanation is only exemplary, instead of in order to limit the scope of the invention and apply.

Fig. 1 is the structural representation of a kind of self-closing loop network supervisory system for computer room temperature monitoring provided by the invention.In Fig. 1, described system comprises main website, N number of node and telecommunication cable;

Wherein, described main website is connected with N number of node in turn by telecommunication cable;

Described node also comprises sets of temperature sensors, and sets of temperature sensors is connected to one chip microcomputer by IO pin in bus protocol mode.

Fig. 2 is that self-closing ring-like network structure provided by the invention becomes structural drawing one.In Fig. 2, the self-closing loop network of described main website and N number of node composition supervisory system; Described self-closing loop network comprises two kinds of structures; The first structure is that main website is connected in turn with N number of node, and N node interface T1 is connected with R2; Its topological structure as shown in Figure 3.

Fig. 4 is that self-closing ring-like network structure provided by the invention becomes structural drawing two.In Fig. 4, the interface T1 of malfunctioning node connects interface R2, and the node interface R2 after malfunctioning node and T2 disconnects; Its topological structure as shown in Figure 5.

Fig. 6 is loop network node structure provided by the invention composition and relation connected to the network thereof.In Fig. 6, described node comprises four interfaces, toggle switch, one chip microcomputer, K switch, status indicator lamp and sets of temperature sensors; Described four interfaces are T1, T2, R1 and R2; Described one chip microcomputer is connected with described toggle switch, status indicator lamp and sets of temperature sensors respectively; Described one chip microcomputer is used for processing signal; Described toggle switch is for setting the network address of node; Described status indicator lamp is used to indicate node duty; Described temperature sensor is used for carrying out temperature data acquisition, and extracts device ID effectively and be buffered in the internal RAM of single-chip microcomputer together with temperature data.

The above; be only the present invention's preferably embodiment, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.

Claims

1., for a self-closing loop network supervisory system for computer room temperature monitoring, it is characterized in that, described system comprises main website, N number of node and telecommunication cable; Described node comprises four interfaces, toggle switch, one chip microcomputer, K switch, status indicator lamp and sets of temperature sensors; Described four interfaces are T1, T2, R1 and R2;

The self-closing loop network of described main website and N number of node composition supervisory system, self-closing loop network comprises two kinds of structures; The first structure is that main website is connected in turn with N number of node, and N node interface T1 is connected with R2; The second structure is that the interface T1 of malfunctioning node connects interface R2, and the node interface R2 after malfunctioning node and T2 disconnects;

2. a kind of self-closing loop network supervisory system for computer room temperature monitoring according to claim 1, it is characterized in that, described sets of temperature sensors is connected to one chip microcomputer by IO pin in bus protocol mode.