CN203012494U - A data real-time remote monitoring system based on PSTN - Google Patents

Abstract

The utility model discloses a data real-time remote monitoring system based on PSTN and belongs to the technical field of data remote real-time monitoring. The system resolves a problem of low efficiency caused by a conventional maintenance operating mode used by a system device at an industrial site. The data real-time remote monitoring system based on PSTN comprises a PSTN public telephone network, a remote monitoring portion, and multiple onsite data acquiring portions. Each onsite data acquiring portion communicates with the remote monitoring portion through the PSTN public telephone network. The onsite industrial device parameter data acquiring PC of the onsite data acquiring portion is connected with an onsite MODEM through a RS232 serial port. The onsite MODEM is connected with the PSTN public telephone network through an onsite telephone. The monitoring center PC of the remote monitoring portion is connected with a monitoring center MODEM through a RS232 serial port. The monitoring center MODEM is connected with the PSTN public telephone network through a monitoring center telephone. The data real-time remote monitoring system based on PSTN is used for remotely monitoring an industrial site.

Description

Data real-time remote monitoring system based on PSTN

Technical field

The utility model relates to the data real-time remote monitoring system based on PSTN, belongs to the technical field of remote data Real Time Monitoring.

Background technology

When the industry spot system equipment breaks down, traditional way, to report the maintenance technician by the staff, the maintenance technician receives to be on the scene after message and carries out repair, the drawback that this mode of operation exists is: the fault of industry spot system equipment is artificial the discovery, if do not have the staff at the scene when fault occurs, understand the time of delay report fault or without report, may cause major break down to occur; Another problem is that to the maintenance technician to on-site maintenance, life period is poor from staff's reporting fault, also exists glitch to become the possibility of major break down.

Adopt traditional maintenance job pattern, can make the maintenance job personnel tired in running between each industry spot.On the other hand, owing to lacking, on-the-spot service data is obtained timely, made the maintenance technician in the problem of very first time discovering device operation, can not provide timely the scheme of dealing with problems, the maintenance job inefficiency.

Summary of the invention

The utility model purpose is the problem of traditional maintenance job pattern inefficiency that adopts in order to solve the industry spot system equipment, and a kind of data real-time remote monitoring system based on PSTN is provided.

Data real-time remote monitoring system based on PSTN described in the utility model, it comprises PSTN public telephone network, remote monitoring section and a plurality of on-site data gathering section; Each on-site data gathering section all communicates by PSTN public telephone network and remote monitoring section;

On-site data gathering section comprises on-the-spot commercial unit supplemental characteristic acquisition PC machine, on-the-spot MODEM and call site machine; On-the-spot commercial unit supplemental characteristic acquisition PC machine is connected with on-the-spot MODEM by the RS232 serial ports, and on-the-spot MODEM is connected with the PSTN public telephone network by the call site machine;

Remote monitoring section comprises Surveillance center's telephone set, the MODEM of Surveillance center and Surveillance center's PC; Surveillance center's PC is connected with the MODEM of Surveillance center by the RS232 serial ports, and the MODEM of Surveillance center is connected with the PSTN public telephone network by Surveillance center's telephone set.

Advantage of the present utility model: the utility model sends to remote monitoring PC with the real time data that industry spot PC collects by the PSTN network, and the feedback command of remote monitoring PC is sent to on-the-spot PC, transmission mode is not subjected to distance limit like this, cheap, and, the public telephone network broad covered area utilizes this transmission mode to have more certain reality and economic implications in condition arduous, remote area.

Description of drawings

Fig. 1 is the theory diagram of the data real-time remote monitoring system based on PSTN described in the utility model.

Embodiment

Embodiment one: below in conjunction with Fig. 1, present embodiment is described, the described data real-time remote monitoring system based on PSTN of present embodiment, it comprises PSTN public telephone network 4, remote monitoring section and a plurality of on-site data gathering section; Each on-site data gathering section all communicates with remote monitoring section by PSTN public telephone network 4;

On-site data gathering section comprises on-the-spot commercial unit supplemental characteristic acquisition PC machine 1, on-the-spot MODEM2 and call site machine 3; On-the-spot commercial unit supplemental characteristic acquisition PC machine 1 is connected with on-the-spot MODEM2 by the RS232 serial ports, and on-the-spot MODEM2 is connected with PSTN public telephone network 4 by call site machine 3;

Remote monitoring section comprises Surveillance center's telephone set 5, the MODEM6 of Surveillance center and Surveillance center's PC 7; Surveillance center's PC 7 is connected with the MODEM6 of Surveillance center by the RS232 serial ports, and the MODEM6 of Surveillance center is connected with PSTN public telephone network 4 by Surveillance center's telephone set 5.

The various data of on-the-spot commercial unit supplemental characteristic acquisition PC machine 1 collection site, send to Surveillance center's telephone set 5 by PSTN public telephone network 4, process, diagnose and assess by Surveillance center's telephone set 5, to diagnose in case of necessity with feedback command and send back to on-the-spot commercial unit supplemental characteristic acquisition PC machine 1, and reach without the maintenance technician and do not gone industry spot also can solve the effect of fault.

The signal procedure specific design of the described data real-time remote monitoring system based on PSTN of this utility model is utilized VC++ to be with communication control MSComm to carry out continuous read operation to serial ports and is triggered the OnComm event, thereby creates the signal procedure of full duplex, event driven, highly effective.Surveillance center's telephone set 5 communicates with on-the-spot commercial unit supplemental characteristic acquisition PC machine 1 via PSTN public telephone network 4, and its process can be divided into communication link foundation, data communication, 3 stages of dismounting link.

On-the-spot commercial unit supplemental characteristic acquisition PC machine 1 is set up link by dial mode and Surveillance center's telephone set 5.After side's PC dials, the opposing party's PC is received auto answer after ring up, contain " Connect " or the CDHolding property value becomes True (detecting carrier wave) in the result code that MODEM sends to data terminal, expression is online with the MODEM6 of Surveillance center, shake hands successfully, communication link is set up and is completed, and system enters the data communication state.

In the remote serial port communication process, the packing of the data of systems communications software receives employing XMODEM agreement with the transmission of data, utilizes the OnComm event capturing of MSComm control in serial ports the transmission of data process and processes these communication events.In communication process, complete the reading in real time and show of monitoring parameter, to system parameter setting and to the control command of equipment issue and to the management of supplemental characteristic.

Code with the Core Feature of the program of VC++ language compilation:

The initialize routine of setting up communication link is as follows:

m_Com.SetCommPort(1)；

m_Com.SetInBuffer.Size(1024)；

m_Com.SetOutBufferSize(512)；

if(！m_Com.GetPortOpen())

m_Com.SetPortOpen(TURE)；

SendString(“ATS0＝1\r\n”)；

m_Com.SetInputMode(1)；

m_Com.SetSettings(“9600，n，8，1”)；

m_Com.SetRThreshold(1)；

m_Com.SetInputLen(0)；

For monitoring parameter read in real time and the Core Feature code that shows as follows:

Complete corresponding function by said procedure.

Claims (1)

1. based on the data real-time remote monitoring system of PSTN, it is characterized in that, it comprises PSTN public telephone network (4), remote monitoring section and a plurality of on-site data gathering section; Each on-site data gathering section all communicates with remote monitoring section by PSTN public telephone network (4);

On-site data gathering section comprises on-the-spot commercial unit supplemental characteristic acquisition PC machine (1), on-the-spot MODEM (2) and call site machine (3); On-the-spot commercial unit supplemental characteristic acquisition PC machine (1) is connected with on-the-spot MODEM (2) by the RS232 serial ports, and on-the-spot MODEM (2) is connected with PSTN public telephone network (4) by call site machine (3);

Remote monitoring section comprises Surveillance center's telephone set (5), the MODEM of Surveillance center (6) and Surveillance center's PC (7); Surveillance center's PC (7) is connected with the MODEM of Surveillance center (6) by the RS232 serial ports, and the MODEM of Surveillance center (6) is connected with PSTN public telephone network (4) by Surveillance center's telephone set (5).

Images