CN102984814A - Large-scale GPRS (general packet radio service) terminal device networking method - Google Patents
Large-scale GPRS (general packet radio service) terminal device networking method Download PDFInfo
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- CN102984814A CN102984814A CN2012105181470A CN201210518147A CN102984814A CN 102984814 A CN102984814 A CN 102984814A CN 2012105181470 A CN2012105181470 A CN 2012105181470A CN 201210518147 A CN201210518147 A CN 201210518147A CN 102984814 A CN102984814 A CN 102984814A
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Abstract
The invention discloses a large-scale GPRS (general packet radio service) terminal device networking method. The method comprises the following steps: S10, judging whether data is transmitted between a GPRS terminal and a server; and S11, according to a judgment result of the step S10, when no data is transmitted, sending a TCP (transmission control protocol) connection disconnecting command to a GPRS module by a processor, and keeping a silence state, while when data is transmitted, sending a connection establishing command to the GPRS module by the processor. In the large-scale GPRS terminal device networking method, usually, when no data is required to be transmitted between the GPRS terminal and the server, the GPRS terminal is only adhered to a base station and keeps the silence state, and no transport layer TCP or UDP (user datagram protocol) link exists between the GPRS terminal and the server; when data is required to be transmitted, the TCP or UDP link is established; therefore, the large-scale GPRS (general packet radio service) terminal device networking method has relatively good using effect on application occasions when the communication data volume is small, but real-time data transmission is required.
Description
Technical field
The invention belongs to the wireless network communication technique field, relate to a kind of under same base station large-scale GPRS terminal equipment networking method.
Background technology
At present, server and GPRS terminal through internet are accessed main employing dual mode mutually, a kind of is to set up the long connection of TCP, namely before real read-write operation, set up between server and the client and be connected, after read-write operation is finished, both sides can discharge this connection when no longer needing this to connect, but establishment of connection needs three-way handshake, then needs when discharging to shake hands for 4 times, and each establishment of connection needs resource consumption and time loss.Another kind is to send the UDP message bag by GPRS terminal equipment regular (in 20 seconds) to keep the communication link connection.
Yet, because the GPRS load-bearing capacity of base station is lower, as long as a lot of base stations have GPRS terminal about 40 to adopt any connected mode in above-mentioned two kinds of communication modes, system the irregular equipment situation that goes offline will occur in practice.Particularly for existing cell networking gate control system, renting a house as public affairs has many high buildings in residential quarter of gate control system, nearly 20,000 of doors numbers, and also nearly 20,000 at the GPRS terminal of installing is so obviously can't satisfy the demands with these two kinds of interconnection techniques of routine.
So the problem for above-mentioned prior art exists is necessary to study in fact, so that a kind of technical scheme to be provided, in load of base station situation limited in one's ability, provide a kind of communication means of new high security.
Summary of the invention
For addressing the above problem, the object of the present invention is to provide a kind of large-scale GPRS terminal equipment networking method, it mainly is for the low situation of existing load of base station ability, a kind of new solution is provided, little but need the application scenario of real-time Data Transmission that preferably result of use is arranged in amount of communication data.
For achieving the above object, technical scheme of the present invention is:
A kind of large-scale GPRS terminal equipment networking method comprises the steps:
S10: judge whether data are in transmission between GPRS terminal and the server;
S11: according to the judged result of step S10, when not having data in transmission, processor sends to the GPRS module and disconnects the TCP bind command, keeps silent status; When professional transmission was arranged, processor sent the order that connects to the GPRS module and can connect with server.
Further, under described silent status, base station and GPRS terminal all keep the scene of oneself.
Further when having business datum to transmit, set up TCP or UDP link, business datum is transmitted, after the operation layer transfer of data is finished, it is the stand-by period that both sides keep linking certain hour, when confirming that both sides do not have the business datum transmitting-receiving within waiting time, port TCP connectivity restitution silent status.
Further, the GPRS terminal is during initiatively to the server service data transmission, and whether the GPRS terminal judges is in the GPRS attachment state, and if so, then the GPRS terminal to server is initiated TCP and connected; If not, then the GPRS terminal microprocessor initiates to adhere to order to the GPRS module first, and then the GPRS terminal is initiated the TCP connection to server again, and after the successful connection, the GPRS terminal to server is sent out and is logged in request command, the waiting for server authentication.
Further, server adopts the mode of SMS notification when initiatively the sending service data are to the GPRS terminal, server sends the SMS notification GPRS terminal of encrypting and initiates to connect, after the GPRS terminal is received note, initiate TCP to server and connect, can carry out data transmit-receive after the TCP successful connection.
The large-scale GPRS terminal equipment of the present invention networking method is not when having the data both sides to transmit at ordinary times, and the GPRS terminal just is attached on the base station, keeps silent status, and both sides do not have transport layer TCP or UDP link; When having business datum to transmit, set up again TCP or UDP link, little but need the application scenario of real-time Data Transmission that preferably result of use is arranged in amount of communication data.
Description of drawings
Figure 1A, 1B are flow process diagrams of the present invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
The large-scale GPRS terminal equipment of the present invention networking method is not when having the data both sides to transmit at ordinary times, and the GPRS terminal just is attached on the base station, keeps silent status, and both sides do not have transport layer TCP or UDP link; When having business datum to transmit, set up again TCP or UDP link, business datum is transmitted, after the operation layer transfer of data was finished, both sides kept linking certain hour, were 30 seconds in the embodiment of the invention, this time is the idle waiting time, be adjustable, confirm both sides when this nearest idle waiting does not all have the business datum transmitting-receiving in the time, port TCP connectivity restitution silent status.
Particularly, the large-scale GPRS terminal equipment of the present invention networking method comprises the steps:
S10: judge whether data are in transmission between GPRS terminal and the server;
S11: according to the judged result of step S10, when not having data in transmission, processor sends to the GPRS module and disconnects the TCP bind command, keeps silent status.
Under the silent status, base station and GPRS terminal all keep the scene of oneself, namely keep the context of communication, and the GPRS terminal is equivalent to be attached on the base station.Under this silent status, transfer of data does not occur in GPRS terminal equipment and base station, does not produce flow, if but GPRS terminal equipment when needing outward the transmission of data, the connection of initiating still can establish a communications link very soon because the communication context of original base station and GPRS terminal keeps.
According to the judged result of step S10, when professional transmission was arranged, processor sent the order that connects to the GPRS module and can connect with server.Then, server and GPRS terminal judge separately have or not in nearest 30 seconds business datum the transmission, if do not have business datum the transmission, represent that then business datum is transmitted.
Particularly, with reference to shown in Figure 1, the GPRS terminal communicate by letter with server include the GPRS terminal initiatively the sending service data to server and server initiatively the sending service data to two kinds of situations of GPRS terminal.
Wherein, the GPRS terminal is during initiatively to the server service data transmission, and the I P of server is a fixedly IP, and the GPRS terminal is as the TCP client, and server end, is set up TCP and connected just passable as long as send the TCP connection request to server as the TCP server end.Idiographic flow is as follows:
Whether the GPRS terminal judges is in the GPRS attachment state, and if so, then the GPRS terminal to server is initiated the TCP connection; If not, then the GPRS terminal microprocessor initiates to adhere to order to the GPRS module first, and then the GPRS terminal is initiated the TCP connection to server again.After the successful connection, the GPRS terminal to server is sent out and is logged in request command, the waiting for server authentication, if server is agreed request command through replying after authenticating, then the GPRS terminal judges has or not business datum to need to send, if send business datum, waiting for server answering service data to server.If receive professional reply data at the appointed time, then whether the GPRS terminal judges has business datum to send and receive in nearest 30 seconds, if if recently. all send without professional data in 30 seconds and receive, then the GPRS terminal to server sends the request of withdrawing from that logs in, waiting for server is replied, after receiving server acknowledge, the GPRS terminal disconnects TCP and connects; If do not receive and reply, then wait the time of by the time appointment, the stand-by period disconnects TCP to rear GPRS terminal and connects.
And server is when initiatively the sending service data are to the GPRS terminal, because the IP of GPRS terminal is dynamic, each its IP and port that be connected on the public network is all different, server can't be initiatively and the GPRS terminal set up the TCP annexation.Therefore need to adopt the mode of SMS notification, server sends the SMS notification GPRS terminal of encrypting and initiates to connect, and after the GPRS terminal is received note, initiates TCP to server and connects.Just can carry out data transmit-receive after the TCP successful connection, specific as follows:
Server is sent short messages notice to the GPRS terminal, and the GPRS terminal detects the note notifying messages of whether reaching the standard grade, if reach the standard grade notifying messages, then initiates TCP to server and connects, and just can carry out data transmit-receive after the TCP successful connection; As not being the notifying messages of reaching the standard grade, then with the note discard processing.
Press such as upper type, GPRS terminal and server both sides communicate on the basis of ensuring communication safety property, and the complete rear GPRS equipment of communicating by letter has been in again silent status, greatly reduces the load of base station.
The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. a large-scale GPRS terminal equipment networking method is characterized in that, comprises the steps:
S10: judge whether data are in transmission between GPRS terminal and the server;
S11: according to the judged result of step S10, when not having data in transmission, processor sends to the GPRS module and disconnects the TCP bind command, keeps silent status; When professional transmission was arranged, processor sent the order that connects to the GPRS module and can connect with server.
2. large-scale GPRS terminal equipment networking method as claimed in claim 1, it is characterized in that: under described silent status, base station and GPRS terminal all keep the scene of oneself.
3. large-scale GPRS terminal equipment networking method as claimed in claim 2, it is characterized in that: when having business datum to transmit, set up TCP or UDP link, business datum is transmitted, after the operation layer transfer of data is finished, it is the stand-by period that both sides keep linking certain hour, when confirming that both sides do not have the business datum transmitting-receiving within waiting time, and port TCP connectivity restitution silent status.
4. large-scale GPRS terminal equipment networking method as claimed in claim 3 is characterized in that, further comprises the steps:
The GPRS terminal is during initiatively to the server service data transmission, and whether the GPRS terminal judges is in the GPRS attachment state, and if so, then the GPRS terminal to server is initiated TCP and connected; If not, then the GPRS terminal microprocessor initiates to adhere to order to the GPRS module first, and then the GPRS terminal is initiated the TCP connection to server again, and after the successful connection, the GPRS terminal to server is sent out and is logged in request command, the waiting for server authentication.
5. large-scale GPRS terminal equipment networking method as claimed in claim 3 is characterized in that, further comprises the steps:
Server is when initiatively the sending service data are to the GPRS terminal, adopt the mode of SMS notification, server sends the SMS notification GPRS terminal of encrypting and initiates to connect, after the GPRS terminal is received note, initiate TCP to server and connect, can carry out data transmit-receive after the TCP successful connection.
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Cited By (5)
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| CN105759697A (en) * | 2016-04-29 | 2016-07-13 | 沈阳仪表科学研究院有限公司 | Informatization monitoring management system for elevator |
| CN107426806A (en) * | 2017-07-17 | 2017-12-01 | 深圳市盛路物联通讯技术有限公司 | Internet-of-things terminal transmits the method and device of data |
| CN108023944A (en) * | 2017-11-29 | 2018-05-11 | 深圳市天颐健康科技有限公司 | Cloud platform and its control method, smart machine and its control method |
| CN108156149A (en) * | 2017-12-21 | 2018-06-12 | 杭州海兴电力科技股份有限公司 | Communication means and system based on Transmission Control Protocol |
| US10111207B2 (en) | 2013-11-07 | 2018-10-23 | Huawei Technologies Co., Ltd. | Network device, terminal device, and voice service control method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US10111207B2 (en) | 2013-11-07 | 2018-10-23 | Huawei Technologies Co., Ltd. | Network device, terminal device, and voice service control method |
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| CN108156149A (en) * | 2017-12-21 | 2018-06-12 | 杭州海兴电力科技股份有限公司 | Communication means and system based on Transmission Control Protocol |
| CN108156149B (en) * | 2017-12-21 | 2021-02-23 | 杭州海兴电力科技股份有限公司 | Communication method and system based on TCP protocol |
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Application publication date: 20130320 |