CN103685236A - Method for processing data of user layer in transmission of network data of wireless sensor - Google Patents
Method for processing data of user layer in transmission of network data of wireless sensor Download PDFInfo
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- CN103685236A CN103685236A CN201310589038.2A CN201310589038A CN103685236A CN 103685236 A CN103685236 A CN 103685236A CN 201310589038 A CN201310589038 A CN 201310589038A CN 103685236 A CN103685236 A CN 103685236A
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Abstract
The invention discloses a method for processing data of a user layer in transmission of network data of a wireless sensor. Under the condition that network conditions are stable, the method is used for transmitting data to a server by using a UDP (user datagram protocol) in a default manner; and when the server detects that the data transmitted by using the UDP comprise a large quantity of disordered ordinal series and packet loss, the data are transmitted by using a TCP (transmission control protocol), and an air interface protocol stack is programmed, so that the data on a user side can be stably transmitted to the server. The air interface protocol stack comprises a grouped data aggregation protocol layer, a wireless link control protocol layer, a media access control layer and a physical layer. By using the method, the problem of air interface blockage in the TCP can be solved; delay of data packages is reduced; the network efficiency is improved; and the data of a client side can be effectively and quickly transmitted to a server side.
Description
Technical field
The present invention relates to user level data processing method in a kind of wireless sensor network data transmission, belong to wireless sense network technical field of data transmission.
Background technology
Wireless sensor network is exactly to form by being deployed in cheap microsensor nodes a large amount of in monitored area, the network system of the self-organizing of the multi-hop forming by communication, its objective is the information of perceived object in perception collaboratively, acquisition and processing network's coverage area, and send to observer.Sensor network as main purpose, is a data-centered network for collection information.In actual applications, a large amount of sensor devices is producing data incessantly, and is sent to terminal equipment.Process how fast, immediately, exactly these uninterrupted data that produce, become urgent problem.
Along with the high speed development of the communication technology, particularly 3G technology and LTE(Long Term Evolution) development of technology, data, services will become the most important thing of mobile radio communication business.Existing Internet network service is mainly used TCP/IP procotol, thereby carries out networking and transmit data, but actual test shows that ICP/IP protocol can not respond in time when mass data is concentrated outburst.Its reason is, because it confirms that packet is likely in the transmission of eating dishes without rice or wine to block other data, and causes transmit leg to think that server does not receive message, carries out message retransmission.Finally cause mass data bag to stop up and eat dishes without rice or wine, can not process in time the message that wireless senser is beamed back, thereby cause data not to be acquired to server in time.
Summary of the invention
Technical problem to be solved by this invention is the defect for background technology, user level data processing method in a kind of wireless sensor network data transmission is provided, avoid packet to block eating dishes without rice or wine problem, guarantee that customer side data can stablize, be sent in time server.
The present invention is for solving the problems of the technologies described above by the following technical solutions:
User level data processing method in a kind of wireless sensor network data transmission, under the stable condition of network condition, acquiescence is used udp protocol to transfer data to server, when the packet that udp protocol transmission detected when server contains a large amount of out of order ordered series of numbers and packet loss, switch to Transmission Control Protocol and carry out transfer of data, plan that air protocol stack stops up with the packet of avoiding Transmission Control Protocol and there will be the problem of eating dishes without rice or wine simultaneously, thereby make the stable server that is sent to of user's side data; Described air protocol stack comprises packet data convergence protocol, radio link control layer, media access control layer, physical layer.
As further prioritization scheme of the present invention, described air protocol stack handling process comprises user's side, server side handling process, and wherein user's side handling process is: packet carries out mailing to radio link control layer after function treatment via packet data convergence protocol; Packet mails to media access control layer at radio link control layer after burst and cascade; Media access control layer is selected transmission means according to the configuration of packet, finally by physical layer, according to selected transmission means, transfers data to server side; In server side handling process, be to carry out according to user's side handling process backward, successively via physical layer, media access control layer, radio link control layer, packet data convergence protocol, the demodulation of complete paired data bag, restructuring and decompression, finally obtain the data that user's side is transmitted.
As further prioritization scheme of the present invention, described packet data convergence protocol function treatment, for each is belonged to the packet marking high priority of Transmission Control Protocol, does not belong to the packet marking low priority of Transmission Control Protocol to each.
Wherein, packet data convergence protocol is called for short PDCP, and radio link control is called for short RLC, and media access control is called for short MAC, and physical layer is called for short PHY.
The present invention adopts above technical scheme, by data being processed at packet data convergence protocol and radio link control layer, make media access control layer can preferentially send the packet of Transmission Control Protocol, basic guarantee is in the middle of the communication of Transmission Control Protocol, eat dishes without rice or wine can not stopped up by packet, reduced the delay of packet, improved network efficiency, made the data of customer side can be delivered to fast and effectively server side.Meanwhile, in the region of network stabilization, use udp protocol, further improved the transmission speed of data.Finally reach user's side data and be sent to accurately in real time the object of server side.
Accompanying drawing explanation
Fig. 1 is process flow figure of the present invention.
Fig. 2 is the structure distribution schematic diagram of air protocol stack user's side and server side.
Embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail.
As shown in Figure 1, under the stable condition of network condition, in a kind of wireless sensor network proposed by the invention, user level data processing method acquiescence is used udp protocol, when server detects packet that udp protocol beams back and contains a large amount of out of order ordered series of numbers and packet loss, system switches to Transmission Control Protocol.Packet for fear of Transmission Control Protocol blocks the transmission of eating dishes without rice or wine, concrete processing method is as follows: all packets the IP traffic from eating dishes without rice or wine to send are judged, if the packet of Transmission Control Protocol, packet is carried out the function treatment of PDCP layer, each is belonged to the packet marking high priority of Transmission Control Protocol, each is not belonged to the packet marking low priority of Transmission Control Protocol.And resolve in the right priority of rlc layer, the Packet Generation of high priority is to high-priority channel the most at last, and the Packet Generation of low priority is to low-priority channel.
As shown in Figure 2, air protocol stack is planned as PDCP layer, rlc layer, MAC layer, PHY layer.User's side mails to rlc layer after first IP traffic being processed by PDCP layer, at rlc layer, after burst and cascade, mail to MAC layer, MAC layer is selected transmission means according to the configuration of packet, finally by PHY layer, according to selected transmission means, transfers data to server side; In server side handling process, be to carry out according to user's side handling process backward, successively via physical layer, media access control layer, radio link control layer, packet data convergence protocol, the demodulation of complete paired data bag, restructuring and decompression, finally obtain the data that user's side is transmitted.
The above; it is only the embodiment in the present invention; but protection scope of the present invention is not limited to this; any people who is familiar with this technology is in the disclosed technical scope of the present invention; can understand conversion or the replacement expected; all should be encompassed in of the present invention comprise scope within, therefore, protection scope of the present invention should be as the criterion with the protection range of claims.
Claims (3)
1. user level data processing method in wireless sensor network data transmission, it is characterized in that: under the stable condition of network condition, acquiescence is used udp protocol to transfer data to server, when the packet that udp protocol transmission detected when server contains a large amount of out of order ordered series of numbers and packet loss, switch to Transmission Control Protocol and carry out transfer of data, plan that air protocol stack stops up with the packet of avoiding Transmission Control Protocol and there will be the problem of eating dishes without rice or wine simultaneously, thereby make the stable server that is sent to of user's side data; Described air protocol stack comprises packet data convergence protocol, radio link control layer, media access control layer, physical layer.
2. user level data processing method in a kind of wireless sensor network data transmission according to claim 1, is characterized in that: described air protocol stack handling process comprises user's side, server side handling process, and wherein user's side handling process is:
Step 001, packet carries out mailing to radio link control layer after function treatment via packet data convergence protocol;
Step 002, packet mails to media access control layer at radio link control layer after burst and cascade;
Step 003, media access control layer is selected transmission means according to the configuration of packet, finally by physical layer, according to selected transmission means, transfers data to server side;
In server side handling process, be to carry out according to user's side handling process backward, successively via physical layer, media access control layer, radio link control layer, packet data convergence protocol, the demodulation of complete paired data bag, restructuring and decompression, finally obtain the data that user's side is transmitted.
3. user level data processing method in a kind of wireless sensor network data transmission according to claim 1, it is characterized in that: described packet data convergence protocol function treatment, for each is belonged to the packet marking high priority of Transmission Control Protocol, does not belong to the packet marking low priority of Transmission Control Protocol to each.
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| CN201310589038.2A CN103685236A (en) | 2013-11-21 | 2013-11-21 | Method for processing data of user layer in transmission of network data of wireless sensor |
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| WO2017000889A1 (en) * | 2015-06-30 | 2017-01-05 | 华为技术有限公司 | Radio access network device, data processing method and ip packet processing method |
| CN109104408A (en) * | 2018-06-29 | 2018-12-28 | 努比亚技术有限公司 | data transmission method, mobile terminal and computer readable storage medium |
| CN109302724A (en) * | 2017-12-20 | 2019-02-01 | 上海创远仪器技术股份有限公司 | A kind of distribution multinode radio real-time data processing system and method |
| CN113541858A (en) * | 2020-04-17 | 2021-10-22 | 深圳先进技术研究院 | Data transmission method, device and medium based on low-power-consumption wireless sensor network |
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Application publication date: 20140326 |