CN101022385A - Interconnection network-based long-distance monitering system and monitoring method - Google Patents
Interconnection network-based long-distance monitering system and monitoring method Download PDFInfo
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- CN101022385A CN101022385A CN 200710086980 CN200710086980A CN101022385A CN 101022385 A CN101022385 A CN 101022385A CN 200710086980 CN200710086980 CN 200710086980 CN 200710086980 A CN200710086980 A CN 200710086980A CN 101022385 A CN101022385 A CN 101022385A
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Abstract
A remote-monitoring method based on Internet includes using monitoring terminal to carry out real time monitor on monitored device to collect real time data being sent to remote control center, carrying out alarm judgment and recording real time data by remote control center, storing alarm information and sending it to client end, calling on remote control center to check historical records of real time data and alarm information by client end after alarm information is received by client end.
Description
Technical field
The present invention relates to a kind of remote control technology, particularly a kind of long distance control system and method for supervising based on the Internet.
Background technology
The refrigerating technology more and more is applied in the various industries, such as: retail business, food processing, storage and transportation etc.Food chain retail industry particularly, because layouts such as hypermarket, supermarket are disperseed, in order to monitor the refrigerating system operating condition of each sales field more in time, so need carry out remote monitoring to the field apparatus ruuning situation of disperseing, and when device fails produces warning, can fix a breakdown the very first time, normally move, avoid the food loss with assurance equipment.
The monitoring content of tradition refrigeration Freezing System remote monitoring system mainly comprises four parts: a, monitoring real time data; B, monitoring alarm data; C, query history record data; D, inquiry alert data historical record.The remote monitoring system mainly is divided into three kinds: gateway type supervisory control system, server-type supervisory control system and centralized control type supervisory control system according to forming the structure difference.These traditional long distance control systems are because the treatment facility PORT COM of field control is generally less, generally simultaneously erecting bed Modem and wireless GSMModem, finishing the active of on-site terminal controller reports to the police, so the necessary regular dialing access field controller of remote control center is so that whether inquiry has warning message.Because by dial mode visit field controller mainly is to adopt ordinary telephone wiring, so the monitoring communication fee is high.Simultaneously, the dialing access of interruption makes the long-range host computer can not be in time and intactly obtain real time data information; In addition, in traditional remote monitoring system, remote control center adopts special-purpose software more, if when client or maintenance personal need check data, must use the PC that special-purpose software is installed.Like this, the personnel of special-purpose monitoring software PC are not installed at hand for travelling outside etc., just can't check on-the-spot ruuning situation parameter; Also have, traditional long distance control system one is configured and installs, and the content of monitoring management information is just determined, can't satisfy the demand that client is carried out secondary development and further monitored these management information; Have, traditional remote control network adopts the master/slave poll communication modes of RS485 industrial field bus more again, and along with the increase of monitoring content and data, the transmitted data on network amount constantly increases, and this bus polling mode has become the bottleneck of restriction local communication.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of long-distance monitoring method based on the Internet, reach long distance control system, can make convenient and fast communication, economy, can carry out secondary development and the fine solution network congestion of energy to data according to customer demand based on this method.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of long-distance monitoring method based on the Internet comprises following steps:
A, monitor terminal are monitored in real time to monitored device, gather the real time data of monitored device;
B, monitor terminal send to remote control center with the real time data of being gathered;
The real time data that C, remote control center record are received is also carried out alarm decision, and client is stored and sent to warning message;
After D, client were received warning message, the visit remote control center was checked the historical record of real time data and warning message.
Described steps A further comprises: the data of each terminal control unit storage need carrying out historical record in the monitor terminal, and judged whether to report to the police and taken place, back up real time data and warning message simultaneously.
Described monitor terminal is by the direct access terminal controller of on-the-spot man-machine interface.
A kind of long distance control system based on the Internet, constitute the special-purpose communication channel that is connected with vpn routers between remote control center and each monitor terminal and sets up by vpn routers by remote control center, at least one monitor terminal and at least one client.
Described remote control center further comprises: the data acquisition server that is connected with vpn routers, the database server that is connected with data acquisition server, the Web server that is connected with database server.
Be connected with gateway between the terminal control unit of described monitor terminal and the vpn routers.
The gateway of described monitor terminal connects man-machine interface by the network switch controller.
Be connected with wireless Modem on the described data acquisition server.
Described remote monitoring center is provided with monitoring PC or display.
The terminal control unit of described monitor terminal adopts the terminal control unit that contains ethernet controller.
Long-distance monitoring method and system based on the Internet provided by the present invention have the following advantages:
1, adopts the on-the-spot networking of 10/100Mb ethernet technology, use the ICP/IP protocol communication, can keep the online communication all the time of monitor terminal and remote control center, upload real time data and warning message more timely;
2, be connected with wireless Modem on the data acquisition server of remote control center, can send warning to the long-distance service personnel by the GSM network; Simultaneously, remote control center provides the long-distance service personnel visit to database server by the Internet, does not use traditional telephone line, greatly reduces communication fee;
3, remote control center provides the Web server interface for long-range accesses such as maintenance personals, and access way is varied, and special-purpose software needn't be installed, and not limited by time, space and access conditions, and cost reduces;
4, the database server stores of remote control center the historical record of on-the-spot real time data and warning, be convenient to centralized management to data, secondary development simultaneously, is convenient to the access rights of supervising the network.
Description of drawings
Fig. 1 forms structure chart for long distance control system of the present invention;
Fig. 2 is independent monitoring terminal equipment structure chart;
Fig. 3 is the remote control center equipment structure chart;
Fig. 4 is a long-distance monitoring method workflow diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing concrete enforcement of the present invention is described further:
Fig. 1 is a long distance control system of the present invention, mainly comprises: monitor terminal, remote control center and client three parts.Wherein, monitor terminal can be provided with several as required, and each monitor terminal is got in touch by the Internet and remote control center, and client can be provided with several according to the needs of user capture.
Monitor terminal is monitored device locations such as compressor, evaporator, refrigeration relevant devices such as compressor, evaporator is referred to as field apparatus herein, and each monitor terminal is by the Internet and remote control center communication.Monitor terminal mainly is made of field apparatus, terminal control unit, gateway, network switch controller and man-machine interface (HMI, Human Machine Interface).
Field apparatus is when work, outside burst alarm condition such as may take place that the compressor oil pressure is low excessively, the electric current in the circuit or voltage are excessive, at this moment, need long distance control system to send warning, notify the maintenance personal to fix a breakdown, to avoid device damage, alarm signal in this case is called external alarm signal, the external alarm signal dumb terminal controller that field apparatus sends, terminal control unit sends to remote monitoring center with external alarm signal in real time, in a single day remote monitoring center finds such signal, reports to the police at once.
In addition, field apparatus has different monitoring value scopes to system's each parameter in service, and when monitoring parameter departed from setting monitoring value scope, terminal control unit also will send alarm signal, and alarm signal in this case is called the internal alarm signal.Such as the normal working temperature of field apparatus, promptly monitoring parameter when temperature is lower than 0 ℃ or be higher than 2 ℃ time overshoot during the time, just need send the internal alarm signal between 0 ℃-2 ℃.Among the present invention, internal alarm signal and external alarm signal are referred to as alarm signal.
As shown in Figure 2, wherein, terminal control unit is made up of the controller that contains Ethernet, as: RC101 and RC102.These terminal control units can be monitored real time data, directly control field apparatus; And terminal control unit can compare according to real time data that monitors and monitoring parameter set point, carries out alarm decision.Each terminal control unit all can be stored the service data that needs historical record separately, realizes the backup functionality to these data.Terminal control unit contains the RJ45 Ethernet interface and is connected to gateway, the real time data at scene can be transmitted to remote control center.
The purpose of Long-distance Control be for convenience not at the scene maintenance personal obtain the fault message of equipment, and in time react, fix a breakdown.If just there is the part maintenance personal at the scene, so, they also need conveniently to finish the work of maintenance.Use HC103 network switch controller in the long distance control system of the present invention, HMI is connected to gateway, convert the RS485 interface of HMI the output of to Ethernet RJ45 interface through HC103.Like this, under the prerequisite of the Ethernet that uses high speed communication, can use the HMI that has the RS485 interface arbitrarily instrument, greatly facilitate the maintenance personal as field service personnel access system.
Terminal control unit, HMI, HC103 network switch controller and gateway have constituted the on-the-spot Ethernet of monitoring, and these equipment all have unique Ethernet IP address, and gateway is connected into the Internet by vpn routers.
Remote control center also uses vpn routers, according to internet security agreement (IPSEC, InternetProtocol Security) with the monitor terminal communication, that is: monitor terminal and remote control center are set up special-purpose communication tunnel, when remote control center sends the on-the-spot real time data that collects, can guarantee the integrality and the fail safe of data.
As shown in Figure 3, be remote control center in the frame of broken lines, data acquisition server is responsible for receiving real time data and the warning message that each monitor terminal sends; Data acquisition server all is stored in real time data and warning message in its database server that is connected, as historgraphic data recording; Remote monitoring center is provided with local PC or display screen, the real time information that obtains of monitoring data collection server in real time; Simultaneously, remote control center sends by the wireless Modem on the data acquisition server warning message that produces to each maintenance personal.
After data acquisition server stored the real time data of monitor terminal and warning message into coupled database server, database server was used for managing the data message of each monitor terminal.And database server connects Web server, so that the universal Web page of client-access is provided.In order to guarantee the fail safe of whole system, between Web server and client-access, fire compartment wall is set.Web server adopts fixed ip address.Like this, client is used any electronic equipment that can browsing page such as personal computer, portable computer or PDA(Personal Digital Assistant), and promptly the database server of addressable remote control center is checked the data message that each is on-the-spot.
Referring to shown in Figure 4, in the long-distance monitoring method based on the Internet provided by the present invention, each equipment of remote control center and monitor terminal is provided with fixing unique network ip address respectively, and gateway is connected into the Internet by vpn routers.Its key step is as follows:
Step 1: terminal control unit collection site real time data and warning message, and the storage of needs being carried out historical record backs up in the storage medium of terminal control unit, and described storage medium can be electrically erasable programmable ROM (EEPROM).
Step 2: after the terminal control unit collection site real time data, immediately field data and the warning message that collects sent to remote control center.
Step 3: the real-time receiving terminal controller of the data acquisition server of remote control center is by the real time data of the Internet to its transmission, and with the storage that receives to the database server as historgraphic data recording; Simultaneously, the Realtime Alerts information that the data acquisition server analysis receives sends warning simultaneously by wireless Modem, and alarm logging also is stored to database server as the alarm history record.
Step 4: after client receives warning message from remote control center, can insert internet visit remote control center by any networking form.Here, described type of attachment refers to but is not limited to modes such as DDN, ADSL, dialing.
Step 5:Web server extracts data according to the visiting demand of client to field data from database server, and formation Http document of agreement sends to from the client in the Internet for reference.The real-time field data of client by checking that remote control center collects carried out analyzing and processing to field failure.
Terminal control unit has write down the real time data and the warning message of monitored device, can when breaking down in order to remote control center, can transfer historical data from terminal control unit with these data as backup on the one hand; On the other hand, HMI if just there is the maintenance personal at the scene, then needn't login remote control center by the direct access terminal controller of gateway, just can check real time data and warning message in the terminal control unit at any time, in time deal with for field failure.
Among the present invention, on-the-spot terminal control unit is a RC100 series controller, and every kind of terminal control unit self contains control able to programme, by writing different control programs, can control different equipment.Therefore, by combinations different between the software and hardware, long distance control system of the present invention can adapt to the equipment of different monitoring terminal.The gateway of monitor terminal mainly is to use switch, to guarantee the quick communication of a plurality of equipment, if small-sized local area network applications can adopt hub, can reduce the cost of system when finishing gateway function.
Monitor terminal also can not established HMI, directly handles field failure by Terminal Server Client.Terminal control unit also can not preserved the real time data of field apparatus, directly these data is sent to remote control center; Perhaps, inner alarm condition is not judged, all data are directly sent to remote control center handle.
In addition, long distance control system of the present invention also is applicable to the remote monitoring of other industry.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.
Claims (10)
1, a kind of long-distance monitoring method based on the Internet is characterized in that comprising following steps:
A, monitor terminal are monitored in real time to monitored device, gather the real time data of monitored device;
B, monitor terminal send to remote control center with the real time data of being gathered;
The real time data that C, remote control center record are received is also carried out alarm decision, and client is stored and sent to warning message;
After D, client were received warning message, the visit remote control center was checked the historical record of real time data and warning message.
2, the long-distance monitoring method based on the Internet according to claim 1, it is characterized in that: steps A further comprises: the data of each terminal control unit storage need carrying out historical record in the monitor terminal, judged whether to report to the police and taken place, backed up real time data and warning message simultaneously.
3, the long-distance monitoring method based on the Internet according to claim 2, it is characterized in that: described monitor terminal is directly visited each controller by on-the-spot man-machine interface.
4, a kind of long distance control system based on the Internet, constitute by remote control center, at least one monitor terminal and at least one client, it is characterized in that: the special-purpose communication channel that is connected with vpn routers between remote control center and each monitor terminal and sets up by vpn routers.
5, the long distance control system based on the Internet according to claim 4, it is characterized in that: described remote control center further comprises: the data acquisition server that is connected with vpn routers, the database server that is connected with data acquisition server, the Web server that is connected with database server.
6, the long distance control system based on the Internet according to claim 4 is characterized in that: be connected with gateway between each terminal control unit in the described monitor terminal and the vpn routers.
7, the long distance control system based on the Internet according to claim 6 is characterized in that: the gateway of described monitor terminal connects man-machine interface by the network switch controller.
8, the long distance control system based on the Internet according to claim 7 is characterized in that: be connected with wireless Modem on the described data acquisition server.
9, the long distance control system based on the Internet according to claim 7 is characterized in that: described remote monitoring center is provided with monitoring PC or display.
10, the long distance control system based on the Internet according to claim 4 is characterized in that: each terminal control unit adopts the terminal control unit that contains ethernet controller in the described monitor terminal.
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| CNB2007100869801A CN100544296C (en) | 2007-03-29 | 2007-03-29 | A kind of long distance control system and method for supervising based on the Internet |
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