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

Abstract

The invention discloses a self-closed loop network monitoring system used for temperature monitoring of a computer room in the field of network monitoring system design. Its technical solution is that the system includes a master station, N nodes and communication cables; the nodes include four interfaces, dial switches, micro-single-chip microcomputers, switches K, status indicator lights and temperature sensor groups; the four interfaces for T1, T2, R1 and R2. The beneficial effect of the present invention is that a self-closed ring network multi-computer communication structure is proposed, temperature measurement is realized by using a temperature sensor, node data aggregation is realized by a single-bus micro-single-chip microcomputer, and data transmission is realized between each node through an automatic closed ring network, which improves the The system is real-time; at the same time, the self-closed ring network has a simple structure, small size, convenient and flexible wiring and networking, and has the characteristics of low power consumption and low cost.

Description

A self-closing ring network monitoring system for temperature monitoring in computer room

technical field

The invention belongs to the field of network monitoring system design, and in particular relates to a self-closed loop network monitoring system used for temperature monitoring of a computer room.

Background technique

The fire safety of large and medium-sized computer rooms is directly related to the safety of users, the computer itself and the building facilities, and in the event of a fire, in order to avoid the expansion of losses, it is generally not allowed to use sprinkler solutions. Therefore, real-time monitoring of key point temperature is an effective means of fire prevention.

The existing traditional method is to adopt a master-slave single-bus solution, specifically using a single-chip microcomputer as the control host, multiple slaves as nodes connected in parallel on the bus, the host sends a multi-machine response, and controls each node in turn to complete multi-machine communication and data transfer. exchange. The disadvantage is that the master-slave mode requires the host to store the ID of each node. When the system needs to expand the slave, the main program needs to be modified, which is not conducive to system maintenance. In addition, because the polling method is used to access the nodes, when the nodes need to send alarm information, they need to wait for the host, and the waiting time increases with the increase of the number of devices, which reduces the real-time performance of the system.

Contents of the invention

Aiming at the problems in the real-time system and system maintenance of the traditional method mentioned in the background technology, the present invention proposes a self-closing ring network monitoring system for temperature monitoring of the computer room.

A self-closing ring network monitoring system for computer room temperature monitoring, characterized in that the system includes a master station, N nodes and communication cables; , a status indicator light and a temperature sensor group; the four interfaces are T1, T2, R1 and R2;

Wherein, the master station is connected to the interface R1 of the first node through a communication cable;

The interface R1 of each node is connected to the interface T1 of the previous node through a communication cable, and the interfaces T1 and R2 of the Nth node are idle;

The internal interface R2 of the node 1 to the node N is connected to the interface T2 through a switch K;

The interface T2 of the node N is connected to the interface R2 of the previous node, and the interface T2 of the first node is connected to the master station;

The master station and N nodes form a self-closing ring network of the monitoring system;

The micro-single-chip microcomputer is respectively connected with the dial switch, the status indicator light and the temperature sensor group; the micro-single-chip microcomputer is used to process signals; the dial switch is used to set the network address of the node; the status indication The lights are used to indicate the working status of the nodes; the temperature sensor group is used for temperature data collection.

Described self-closing ring network comprises two kinds of structures; The first kind of structure is that master station is connected with N nodes in sequence, and the Nth node interface T1 and R2 are connected; The second kind of structure is that the interface T1 of the failure node is connected to the interface R2, The node interfaces R2 and T2 after the failed node are disconnected.

The temperature sensor group is connected to the micro-single-chip microcomputer through the IO pin in the bus protocol mode.

The beneficial effect of the present invention is that a self-closed ring network multi-machine communication structure is proposed, temperature measurement is realized by using a temperature sensor, node data aggregation is realized by a single-bus micro-single-chip microcomputer, data transmission is realized through an automatic closed ring network between each node, and finally through The host implements functions such as historical records and alarms, which improves the real-time performance of the system; at the same time, the self-closed ring network has a simple structure, small size, convenient and flexible wiring and networking, and has the characteristics of low power consumption and low cost.

Description of drawings

Fig. 1 is a kind of structural representation of the self-closing ring network monitoring system that is used for machine room temperature monitoring provided by the present invention;

Fig. 2 is a structural diagram one of the self-closing ring network structure provided by the present invention;

Fig. 3 is a self-closing ring network topology diagram one provided by the present invention;

Fig. 4 is the structural diagram two of self-closing ring network structure provided by the present invention;

Fig. 5 is self-closing ring network topological structure figure two provided by the present invention;

Fig. 6 is the composition of the ring network node structure provided by the present invention and its relationship with the network connection.

Detailed ways

The preferred embodiments will be described in detail below in conjunction with the accompanying drawings. It should be emphasized that the following description is only exemplary and not intended to limit the scope of the invention and its application.

Fig. 1 is a schematic structural diagram of a self-closing ring network monitoring system for monitoring the temperature of a computer room provided by the present invention. Among Fig. 1, described system comprises master station, N nodes and communication cable;

Wherein, the master station is sequentially connected to N nodes through communication cables;

The master station and N nodes form a self-closing ring network of the monitoring system;

The node also includes a temperature sensor group, and the temperature sensor group is connected to the micro-single-chip microcomputer through a bus protocol through an IO pin.

Fig. 2 is a structural diagram 1 of the self-closing ring network structure provided by the present invention. In Fig. 2, described master station and N nodes form the self-closed ring network of monitoring system; Described self-closed ring network comprises two kinds of structures; The first kind of structure master station is connected with N nodes in sequence, and the Nth node Interface T1 and R2 are connected; its topology is shown in Figure 3.

Fig. 4 is the second structural diagram of the self-closing ring network structure provided by the present invention. In Figure 4, the interface T1 of the faulty node is connected to the interface R2, and the interfaces R2 and T2 of the node behind the faulty node are disconnected; its topology is shown in Figure 5.

Fig. 6 is the composition of the ring network node structure provided by the present invention and its relationship with the network connection. Among Fig. 6, described node comprises four interfaces, dial switch, micro-single-chip microcomputer, switch K, status indicator lamp and temperature sensor group; Described four interfaces are T1, T2, R1 and R2; Described micro-single-chip microcomputer is connected with respectively The dial switch, the status indicator light and the temperature sensor group are connected; the micro-single-chip microcomputer is used to process the signal; the dial switch is used to set the network address of the node; the status indicator lamp is used to instruct the node to work State: the temperature sensor is used for temperature data acquisition, and the effective device ID is extracted and cached in the internal RAM of the single-chip microcomputer together with the temperature data.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of changes or modifications within the technical scope disclosed in the present invention. Replacement should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims.

Claims (2)

1. A self-closed ring network monitoring system for machine room temperature monitoring, characterized in that, the system includes master station, N nodes and communication cables; A switch K, a status indicator light and a temperature sensor group; the four interfaces are T1, T2, R1 and R2; Wherein, the master station is connected to the interface R1 of the first node through a communication cable; The interface R1 of each node is connected to the interface T1 of the previous node through a communication cable, and the interfaces T1 and R2 of the Nth node are idle; The internal interface R2 of the node 1 to the node N is connected to the interface T2 through a switch K; The interface T2 of the node N is connected to the interface R2 of the previous node, and the interface T2 of the first node is connected to the master station; The master station and N nodes form a self-closed ring network of the monitoring system, and the self-close ring network includes two structures; the first structure connects the master station with N nodes in sequence, and the Nth node interfaces T1 and R2 are connected; The second structure is that the interface T1 of the faulty node is connected to the interface R2, and the interface R2 and T2 of the node behind the faulty node are disconnected; The micro-single-chip microcomputer is respectively connected with the dial switch, the status indicator light and the temperature sensor group; the micro-single-chip microcomputer is used to process signals; the dial switch is used to set the network address of the node; the status indication The lights are used to indicate the working status of the nodes; the temperature sensor group is used for temperature data collection. 2. A kind of self-closing ring network monitoring system that is used for computer room temperature monitoring according to claim 1, is characterized in that, described temperature sensor group is connected to micro single-chip microcomputer by IO pin with bus protocol mode.