CN104980509A - Data transmission method under the condition without fixed public network IP based on wireless data transmission terminals - Google Patents
Data transmission method under the condition without fixed public network IP based on wireless data transmission terminals Download PDFInfo
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- CN104980509A CN104980509A CN201510336441.3A CN201510336441A CN104980509A CN 104980509 A CN104980509 A CN 104980509A CN 201510336441 A CN201510336441 A CN 201510336441A CN 104980509 A CN104980509 A CN 104980509A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
- H04L67/562—Brokering proxy services
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/45—Network directories; Name-to-address mapping
- H04L61/4535—Network directories; Name-to-address mapping using an address exchange platform which sets up a session between two nodes, e.g. rendezvous servers, session initiation protocols [SIP] registrars or H.323 gatekeepers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
- H04L67/025—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
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- Computer Networks & Wireless Communication (AREA)
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- General Physics & Mathematics (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a data transmission method under the condition without a fixed public network IP based on wireless data transmission terminals. A network cloud platform data server is applied on the network, so that data transmission can be carried out only by setting the ID number of the other party, without knowing the ID address. The scheme is applied to the condition without a fixed public network. According to the invention, each monitoring device is connected with one wireless data transmission terminal, a unique ID number is respectively set for a main station communication machine and the wireless data transmission terminals connected with the monitoring devices, and point-to-point data transmission and point-to-multipoint data transmission are realized. Data transmission between the monitoring devices and a center station system under the condition without a public network IP address is realized. Moreover, as the cost for renting the network cloud platform server is very low, the construction cost and operation cost of an SCADA system can be greatly reduced.
Description
Technical field
The present invention relates to a kind of data transmission method without fixing public network IP based on wireless data transmission terminal, belong to SCADA system monitoring technical field.
Background technology
When the monitoring device of data acquisition and supervisor control (SCADA) be arranged on field and and master station communication machine is distant time, realize the immediate data transmission of monitoring device and master station communication machine, usually have the communication modes such as data radio station, GSM message, GPRS, satellite note.
Data radio station is by the restriction of transmission range, and the impact that antenna type, antenna height and environment are adjusted the distance is very large, and in unscreened situation, transmission range is generally no more than 30km.GSM message presses the charging of data number, the maximum support of every bar data 140 bytes, and data delay is very large, is generally only applied in the system that data volume is little, data reliability requirement is lower.Satellite short-message fee is higher, and every bar data are no more than 280 bytes, only just can use in the area without mobile network at present, or in the more weak area of mobile network signals as the alternate channel of in system.Along with the development of mobile network, the wireless transmission such as GPRS due to have make full use of existing network, resource utilization high, online, the feature such as communication distance does not limit, transmission rate is high, rate are reasonable all the time can be kept, in SCADA system, obtain good popularization.
When monitoring device wireless terminal is connected into network, meeting Dynamic Acquisition is to an IP address, and now monitoring device needs the IP address knowing master station communication machine just can communicate.
Two kinds of relatively more conventional at present solutions are as follows:
1) user is at main website application the Internet special line, handles the Internet special line and can provide one or more fixing IP, and monitoring device wireless terminal sets the IP address of master station communication machine and the port numbers of correspondence, carries out network service after being connected into network with main website.
2) monitoring device SIM card opens fixing IP address of internal network business, the IP address that each wireless terminal obtains when being connected into network is all fixing, monitoring device and master station communication machine are previously stored with the IP address of the other side, monitoring device can initiatively send data to master station communication machine, or main website obtains the data of monitoring device by polling mode.
General user does not open the Internet private line service, the Internet special line is higher than general network rate a lot, especially in the area that some fixed ip address resources are comparatively nervous, the construction cost of the SCADA system of special line and operation cost is used relatively not to use the system of special line high a lot.
In most of the cases, the SIM card of binding fixed ip address is used also not possess practicality.Domestic consumer is only to handle the SIM card opening general service in business hall, the IP address that this SIM card obtains after being connected into the Internet is at every turn unfixed.Only have enterprise customer just can apply for binding the business of fixed ip address SIM card, the IP address of acquisition is fixing mobile Intranet, with main website IP in same local area network (LAN), but uses the SIM card of binding fixed ip address higher than common SIM cards expense.
Summary of the invention
The present invention proposes a kind of method without transfer of data under fixing public network IP condition based on wireless data transmission terminal, the transfer of data a bit to any and point to multi--point can be realized, solve the master station communication machine of field SCADA system with relatively low cost without monitoring device during fixing public network IP and the data transmission problems between master station communication machine.
For achieving the above object, the technical solution used in the present invention is as follows:
Based on the data transmission method without fixing public network IP of wireless data transmission terminal, comprise the following steps:
1) on network, apply for a network cloud platform data server, its IP address is public network IP and remains unchanged always;
2) on network cloud platform data server, service data forwards service routine, and described data forwarding service program is used for the TCP/IP link information of apparatus for managing and monitoring wireless data transmission terminal and main website and carries out the data retransmission of monitoring device and main website;
3) wireless data transmission terminal is connected to each monitoring device; Described wireless data transmission terminal is used for the message data of monitoring device to pack according to No. ID, and by the IP information set, message data is transmitted to network cloud platform data server, message data is forwarded on the wireless data transmission terminal of corresponding master station communication machine or master station communication machine by network cloud platform data server, and wireless data transmission terminal carries out message data and unpacks the master station communication machine being transmitted to correspondence again;
4) a master station communication machine is set up to a SCADA system;
5) one No. ID is arranged, No. ID not reproducible use to master station communication machine and the wireless data transmission terminal that is connected with each monitoring device;
6) when any carries out transfer of data to a bit, monitoring device wireless data transmission terminal arranges No. ID of network cloud platform data server ip information and a master station communication machine, master station communication machine runs SCADA system data acquisition program, and SCADA system data acquisition program needs to configure No. ID, each monitoring device wireless terminal;
7) monitoring device wireless data transmission terminal and master station communication machine send logon message at every turn immediately and carry out ID registration to network cloud platform data server after connecting to network, after succeeding in registration, monitoring device wireless data transmission terminal and the circulation of master station communication machine send heartbeat message and keep and the connection of network cloud platform data server, and network cloud platform data server preserves monitoring device wireless data transmission terminal and the up-to-date TCP/IP link information of master station communication machine;
8) when monitoring device by wireless data transmission terminal to master station communication machine reported data time, data are carried out packing and are sent to network cloud platform data server by the wireless data transmission terminal be connected with monitoring device, and the data that network cloud platform data server parses is packed also forward the data to corresponding master station communication machine by data forwarding service program;
9) master station communication machine receives the data that network cloud platform data server forwards, successfully resolved then returns response message to network cloud platform data server, undertaken being forwarded to corresponding monitoring device wireless data transmission terminal by the data forwarding service program of network cloud platform data server, wireless data transmission terminal is sent to monitoring device again, namely represents that this secondary data reports successfully after monitoring device receives response message;
10) when master station communication owner dynamic to monitoring device carry out data recruit survey or optimum configurations time, send a command to network cloud platform data server, network cloud platform data server finds corresponding tcp/ip message according to the wireless data transmission terminal ID of monitoring device, carries out transferring order;
11) wireless data transmission terminal of monitoring device receives data that network cloud platform data server forwards and recruits to survey or carry out unpacking after optimum configurations order and remove id information and be transmitted to monitoring device again, monitoring device performs corresponding operation and return command response message, network cloud platform data server is sent to by wireless data transmission terminal, undertaken being forwarded to master station communication machine by the data forwarding service program of network cloud platform data server, master station communication machine receives the command response message that returns and represents after successfully resolved that this subcommand sends successfully.
In aforesaid step 4), if master station communication machine scene does not have network traffic conditions, then a wireless data transmission terminal is directly connected on master station communication machine and uses.
Wireless data transmission terminal in aforesaid step 3) and step 4) adopts GPRS/CDMA/EVDO/WCDMA/3G/4G.
In aforesaid step 3) between monitoring device and wireless data transmission terminal, in described step 4), master station communication machine is connected by RS232 or RS485 wired mode with between wireless data transmission terminal.
In aforesaid step 5), use monitoring device SIM card number arranges No. ID of monitoring device wireless data transmission terminal, ensures the uniqueness of No. ID.
Aforesaid when carrying out point to multi--point transfer of data, only need No. ID that multiple master station communication machine is set in the wireless data transmission terminal of monitoring device.
Advantage of the present invention is:
The present invention not only achieves without monitoring device under public network IP address and the transfer of data between master station communication machine, and due to the cost renting network cloud Platform Server very low, thus greatly can reduce construction cost and the operation cost of SCADA system.
Accompanying drawing explanation
Fig. 1 is SCADA system data report flow figure;
Fig. 2 is that SCADA system data recruit survey and setting procedure figure.
Embodiment
Traditional field SCADA system is all monitoring device and the direct communication of master station communication machine.Between monitoring device and master station communication machine, need to carry out big data quantity when transmitting, traditional transmission means such as ultrashort wave, short message, satellite etc. can not meet the demands usually.The channel of GPRS or other similar general packet radio service is because transmission cost is low, channel capacity greatly generally becomes first-selected, but this kind of channel needs the main website of system to possess the Internet special line and fixed ip address, and open construction cost and the operation cost that the Internet special line and fixed ip address service can increase SCADA system greatly.
The data transmission method without fixing public network IP based on wireless data transmission terminal provided by the invention, comprises the following steps:
1) on network, apply for a network cloud platform data server, network cloud platform data server can select different configurations according to demand, and its IP address is public network IP and remains unchanged always;
2) on network cloud platform data server, service data forwards service routine, and the effect of data forwarding service program is the TCP/IP link information of apparatus for managing and monitoring wireless data transmission terminal and main website and the data retransmission carrying out monitoring device and main website;
3) connect a wireless data transmission terminal to each monitoring device, can be connected by wired modes such as RS232 or RS485, wireless data transmission terminal adopts GPRS/CDMA/EVDO/WCDMA/3G/4G etc.; The effect of wireless data transmission terminal is packed according to No. ID by the message data of monitoring device, and by the IP information set, message data is transmitted to network cloud platform data server, message data is forwarded on the wireless data transmission terminal of corresponding master station communication machine or master station communication machine by network cloud platform data server, and wireless data transmission terminal carries out message data and unpacks the master station communication machine being transmitted to correspondence again;
4) a master station communication machine is set up to a SCADA system, master station communication machine can be arranged on the place possessing network traffic conditions, if scene does not have network traffic conditions, then a wireless data transmission terminal can be directly connected on master station communication machine by RS232 or RS485 etc. and use; The effect of wireless data transmission terminal is here packed according to No. ID by the message data of master station communication machine, and by the IP information set, message data is transmitted to network cloud platform data server, message data is forwarded on the wireless data transmission terminal of corresponding monitoring device by network cloud platform data server, and wireless data transmission terminal carries out message data and unpacks and be transmitted to monitoring device again;
5) one No. ID is arranged, No. ID not reproducible use to master station communication machine and the wireless data transmission terminal that is connected with each monitoring device, generally can be set using the uniqueness that monitoring device SIM card number ensures No. ID;
6) when any carries out transfer of data to a bit, as shown in Figure 1, monitoring device wireless data transmission terminal arranges No. ID of network cloud platform data server ip information and a master station communication machine, master station communication machine runs SCADA system data acquisition program, and SCADA system data acquisition program needs to configure No. ID, each monitoring device wireless terminal;
7) monitoring device wireless data transmission terminal and master station communication machine send logon message at every turn immediately and carry out ID registration to network cloud platform data server after connecting to network, after succeeding in registration, monitoring device wireless data transmission terminal and the circulation of master station communication machine send heartbeat message and keep and the connection of network cloud platform data server, and network cloud platform data server preserves monitoring device wireless data transmission terminal and the up-to-date TCP/IP link information of master station communication machine;
8) when monitoring device (A) by wireless data transmission terminal to master station communication machine (B) reported data time, data are carried out packing and are sent to network cloud platform data server by the wireless data transmission terminal be connected with monitoring device, and the data that network cloud platform data server parses is packed also forward the data to corresponding master station communication machine (B) by data forwarding service program;
9) master station communication machine (B) receives the data that network cloud platform data server forwards, successfully resolved then returns response message to network cloud platform data server, the wireless data transmission terminal being forwarded to corresponding monitoring device (A) is carried out by the data forwarding service program of network cloud platform data server, wireless data transmission terminal is sent to monitoring device (A) again, after monitoring device (A) receives response message, namely represent that this secondary data reports successfully;
10) as shown in Figure 2, when master station communication machine (B) initiatively carries out the survey of data trick or optimum configurations to monitoring device (A), send a command to network cloud platform data server, network cloud platform data server finds corresponding tcp/ip message according to the wireless data transmission terminal ID of monitoring device (A), carries out transferring order;
11) wireless data transmission terminal of monitoring device (A) receives data that network cloud platform data server forwards and recruits to survey or carry out unpacking after optimum configurations order and remove id information and be transmitted to monitoring device (A) again, monitoring device (A) performs corresponding operation and return command response message, network cloud platform data server is sent to by wireless data transmission terminal, undertaken being forwarded to master station communication machine (B) by the data forwarding service program of network cloud platform data server, master station communication machine (B) receives the command response message that returns and represents after successfully resolved that this subcommand sends successfully.
Only need in the wireless data transmission terminal of monitoring device, arrange multiple master station communication machine No. ID when point to multi--point transmits, SCADA system data flow transmits identical with any to a bit.
If master station communication machine is arranged on the scene not having network traffic conditions, be connected with a wireless data transmission terminal, the wireless data transmission terminal be then connected to master station communication machine arranges unique No. ID, master station communication machine carries out ID registration by this wireless data transmission terminal to network cloud platform data server, and circulation sends heartbeat message keeps and the connection of network cloud platform data server, network cloud platform data server preserves the up-to-date TCP/IP link information of the wireless data transmission terminal of monitoring device wireless data transmission terminal and this master station communication machine.When monitoring device is to master station communication machine reported data, network cloud platform data server forwards the data to the wireless data transmission terminal be connected with master station communication machine, then transfers to master station communication machine by wireless data transmission terminal; When master station communication machine carries out the survey of data trick or optimum configurations, send a command to network cloud platform data server by wireless data transmission terminal.
The explanation of nouns of relevant technical terms
A bit to some transmission: monitoring device only carries out transfer of data with a main website.
Point to multi--point transmits: monitoring device carries out transfer of data with multiple main website simultaneously.
Claims (6)
1., based on the data transmission method without fixing public network IP of wireless data transmission terminal, it is characterized in that, comprise the following steps:
1) on network, apply for a network cloud platform data server, its IP address is public network IP and remains unchanged always;
2) on network cloud platform data server, service data forwards service routine, and described data forwarding service program is used for the TCP/IP link information of apparatus for managing and monitoring wireless data transmission terminal and main website and carries out the data retransmission of monitoring device and main website;
3) wireless data transmission terminal is connected to each monitoring device; Described wireless data transmission terminal is used for the message data of monitoring device to pack according to No. ID, and by the IP information set, message data is transmitted to network cloud platform data server, message data is forwarded on the wireless data transmission terminal of corresponding master station communication machine or master station communication machine by network cloud platform data server, and wireless data transmission terminal carries out message data and unpacks the master station communication machine being transmitted to correspondence again;
4) a master station communication machine is set up to a SCADA system;
5) one No. ID is arranged, No. ID not reproducible use to master station communication machine and the wireless data transmission terminal that is connected with each monitoring device;
6) when any carries out transfer of data to a bit, monitoring device wireless data transmission terminal arranges No. ID of network cloud platform data server ip information and a master station communication machine, master station communication machine runs SCADA system data acquisition program, and SCADA system data acquisition program needs to configure No. ID, each monitoring device wireless terminal;
7) monitoring device wireless data transmission terminal and master station communication machine send logon message at every turn immediately and carry out ID registration to network cloud platform data server after connecting to network, after succeeding in registration, monitoring device wireless data transmission terminal and the circulation of master station communication machine send heartbeat message and keep and the connection of network cloud platform data server, and network cloud platform data server preserves monitoring device wireless data transmission terminal and the up-to-date TCP/IP link information of master station communication machine;
8) when monitoring device by wireless data transmission terminal to master station communication machine reported data time, data are carried out packing and are sent to network cloud platform data server by the wireless data transmission terminal be connected with monitoring device, and the data that network cloud platform data server parses is packed also forward the data to corresponding master station communication machine by data forwarding service program;
9) master station communication machine receives the data that network cloud platform data server forwards, successfully resolved then returns response message to network cloud platform data server, undertaken being forwarded to corresponding monitoring device wireless data transmission terminal by the data forwarding service program of network cloud platform data server, wireless data transmission terminal is sent to monitoring device again, namely represents that this secondary data reports successfully after monitoring device receives response message;
10) when master station communication owner dynamic to monitoring device carry out data recruit survey or optimum configurations time, send a command to network cloud platform data server, network cloud platform data server finds corresponding tcp/ip message according to the wireless data transmission terminal ID of monitoring device, carries out transferring order;
11) wireless data transmission terminal of monitoring device receives data that network cloud platform data server forwards and recruits to survey or carry out unpacking after optimum configurations order and remove id information and be transmitted to monitoring device again, monitoring device performs corresponding operation and return command response message, network cloud platform data server is sent to by wireless data transmission terminal, undertaken being forwarded to master station communication machine by the data forwarding service program of network cloud platform data server, master station communication machine receives the command response message that returns and represents after successfully resolved that this subcommand sends successfully.
2. the data transmission method without fixing public network IP based on wireless data transmission terminal according to claim 1, it is characterized in that, in described step 4), if master station communication machine scene does not have network traffic conditions, then a wireless data transmission terminal is directly connected on master station communication machine and uses.
3. the data transmission method without fixing public network IP based on wireless data transmission terminal according to claim 2, is characterized in that, the wireless data transmission terminal in described step 3) and step 4) adopts GPRS/CDMA/EVDO/WCDMA/3G/4G.
4. the data transmission method without fixing public network IP based on wireless data transmission terminal according to claim 2, it is characterized in that, in described step 3) between monitoring device and wireless data transmission terminal, in described step 4), master station communication machine is connected by RS232 or RS485 wired mode with between wireless data transmission terminal.
5. the data transmission method without fixing public network IP based on wireless data transmission terminal according to claim 1, it is characterized in that, in described step 5), use monitoring device SIM card number arranges No. ID of monitoring device wireless data transmission terminal, ensures the uniqueness of No. ID.
6. the data transmission method without fixing public network IP based on wireless data transmission terminal according to claim 1, it is characterized in that, described when carrying out point to multi--point transfer of data, only need No. ID that multiple master station communication machine is set in the wireless data transmission terminal of monitoring device.
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| CN109861877A (en) * | 2019-01-08 | 2019-06-07 | 许继集团有限公司 | A kind of distribution network terminal wireless public network communication test system based on cloud service |
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| CN104980509B (en) | 2018-03-23 |
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