CN105743865A - Multimedia file data transmission system and transmission method - Google Patents
Multimedia file data transmission system and transmission method Download PDFInfo
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- CN105743865A CN105743865A CN201410768291.9A CN201410768291A CN105743865A CN 105743865 A CN105743865 A CN 105743865A CN 201410768291 A CN201410768291 A CN 201410768291A CN 105743865 A CN105743865 A CN 105743865A
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Abstract
The invention discloses a multimedia file data transmission system and a transmission method. The system comprises a monitoring terminal having a sending module and a server having a reception module, wherein the sending module is used for sending a transmission request instruction to the server, a multimedia file data is divided into multiple data packets after a transmission request confirmation instruction sent by the server is received, the data packets are continuously sent to the server, a transmission end instruction is sent to the server after all the data packets are sent, the reception module is used for checking whether the received multimedia file data is complete after receiving the transmission end instruction, and sending a reception identification instruction for representing a data block completeness state to the monitoring terminal, and the sending module is further used for analyzing the received identification instruction and carrying out resending of a missed data packet or transmission ending according to the content of the instruction. Through the system, the number of confirmation information frames fed back by the server is reduced, and transmission efficiency of the multimedia file data is improved.
Description
Technical field
The present invention relates to a kind of multimedia file data between monitor terminal and server transmission system and transmission method.
Background technology
Multiple multimedia file transmission method is had, for instance monitor terminal takes the mode of UDP (UserDatagramProtocol, UDP) that multimedia file is transmitted between existing monitor terminal and communication server.Owing to UDP uses the Internet protocol of bottom to transmit message, equally provide the transmission service of insecure connectionless data bag with IP (InternetProtocol, the agreement of interconnection between network), so packet loss is relatively more when network environment is poor；Simultaneously carry out data mend pass in need and communication server carries out data interaction, so needing newly-increased port to carry out communication, and general monitor terminal is taked is embedded development, and port resource is less, improves development cost and hardware cost.And in time being transmitted in the way of TCP (TransmissionControlProtocol transmission control protocol) transmits, although TCP is a kind of transport layer protocol connection-oriented, reliable, IP-based, ensure that the transmitting of data, but it adopts the mode of " question-response " to carry out data transmission, namely upload a data to be required for communication server and carry out response every time, so can cause that data transmission efficiency is low, also consume more flow simultaneously.
Summary of the invention
The technical problem to be solved in the present invention is that to overcome monitor terminal and server in prior art to carry out efficiency of transmission when multimedia file data transmits by TCP/IP mode low, expend the defect of flow, it is provided that a kind of multimedia file data transmission system and transmission method.
The present invention solves above-mentioned technical problem by following technical proposals:
A kind of multimedia file data transmission system, it is characterized in that, including a monitor terminal and a server, described monitor terminal is set up TCP/IP with described server and is connected, and described monitor terminal includes a sending module, and described server includes a receiver module；
Described sending module is for sending a transmission request instruction to described server；
Described receiver module for creating a multimedia file after receiving described transmission request instruction, and sends a transmission request confirmation instruction to described monitor terminal；
Described sending module is additionally operable to after receiving described transmission request confirmation instruction multimedia file data is packaged as Frame to be sent, and by a data communication protocol, described Frame is split into some packets when the length of described Frame is more than a threshold value, and by Socket (socket, for describing IP address and port, it being the handle of a communication chain) packet continuously transmits to described server, and sends an end of transmission instruction to described server after having sent all packets by interface；
Described receiver module is additionally operable to write in described multimedia file by the packet received, and check that whether the multimedia file data received is complete after receiving described end of transmission instruction, if it is complete, then send one to described monitor terminal and receive complete reception identification instruction for characterizing packet, if imperfect, then send one for characterizing the reception identification instruction of the data block of disappearance to described monitor terminal；
Described sending module is additionally operable to resolve described reception identification instruction, if described reception identification instruction characterizes the data block having disappearance, then the data block of disappearance is repacked and pass through Socket interface and again continuously transmit to described server, receive complete if described reception identification instruction characterizes packet, then the transmission of ending multimedia file data.
In this programme, when packet is continuously transmitted to server by sending module, it is by packet transmission one by one, centre undopes, and other operates, and without each the data packet request server sent is replied a confirmation frame, but only after all packets have sent, send an end of transmission instruction to server, further according to practical situation, the packet of the unreceived disappearance of server end is resend, therefore, greatly reduce the quantity confirming information frame of server end feedback in transmitting procedure, thus improve the efficiency of transmission of multimedia file data, it also avoid and frequently receive the consuming crossing various flow that the confirmation information frame of server causes, also ensure the integrity of multimedia file data transmission.
Directly described Frame is sent to described server by Socket interface it is preferred that described sending module is additionally operable to when the length of described Frame is less than described threshold value.
It is preferred that described reception identification instruction receives completely for characterizing packet when content is sky, characterizes the data block having disappearance when content is the data block identifier lacked.
Wherein, the data block of disappearance is made marks by corresponding data block identifier, in order to the data block of corresponding disappearance is packed by monitor terminal.
It is preferred that packet is continuously transmitted to described server by described sending module in the way of without interval.
The present invention also provides for a kind of multimedia file data transmission method, and it is characterized in that, it utilizes multimedia file data described above transmission system to realize, and comprises the following steps:
S1, described sending module to described server send one transmission request instruction；
S2, described receiver module creates a multimedia file after receiving described transmission request instruction, and sends a transmission request to described monitor terminal and confirm instruction；
S3, described sending module confirm to be packaged as by multimedia file data after instruction Frame to be sent receiving described transmission request, and by a data communication protocol, described Frame is split into some packets when the length of described Frame is more than a threshold value, and continuously transmitted packet to described server by Socket interface, and send an end of transmission instruction to described server after having sent all packets；
S4, described receiver module the packet that receives is write in described multimedia file, and check that whether the multimedia file data received is complete after receiving described end of transmission instruction, if it is complete, then send one to described monitor terminal and receive complete reception identification instruction for characterizing packet, if imperfect, then send one for characterizing the reception identification instruction of the data block of disappearance to described monitor terminal；
S5, described sending module resolve described reception identification instruction, if described reception identification instruction characterizes the data block having disappearance, then the data block of disappearance is repacked and pass through Socket interface and again continuously transmit to described server, receive complete if described reception identification instruction characterizes packet, then the transmission of ending multimedia file data.
It is preferred that step S3Described in sending module directly described Frame is sent to described server by Socket interface when the length of described Frame is less than described threshold value.
Receive completely it is preferred that characterize packet when the content of described reception identification instruction is sky, characterize, when the data block identifier that content is disappearance, the data block having disappearance.
It is preferred that step S3Described in sending module in the way of without interval, packet is continuously transmitted to described server.
The actively progressive effect of the present invention is in that: the monitor terminal of the present invention is when sending multiple packet, without request server, a confirmation frame is all replied in the transmission of each packet, therefore, greatly reduce the quantity confirming information frame of server end feedback in transmitting procedure, improve the efficiency of transmission of multimedia file data, it also avoid and frequently receive the consuming crossing various flow that the confirmation information frame of server causes, also ensure the integrity of multimedia file data transmission.
Accompanying drawing explanation
Fig. 1 is the structural representation of the multimedia file data transmission system of the embodiment of the present invention 1.
Fig. 2 is the flow chart of the multimedia file data transmission method of the embodiment of the present invention 2.
Fig. 3 be the embodiment of the present invention 2 multimedia file data transmission method in monitor terminal perform process flow chart.
Fig. 4 be the embodiment of the present invention 2 multimedia file data transmission method in the flow chart of server implementation.
Detailed description of the invention
Mode by the examples below further illustrates the present invention, but does not therefore limit the present invention among described scope of embodiments.
Embodiment 1
The present embodiment provides a kind of multimedia file data transmission system, as it is shown in figure 1, include monitor terminal 1 and a server 2, described monitor terminal is set up TCP/IP with described server and is connected, described monitor terminal includes a sending module 10, and described server includes a receiver module 20.
Described sending module 10 is for sending a transmission request instruction to described server.
Described receiver module 20 for creating a multimedia file after receiving described transmission request instruction, and sends a transmission request confirmation instruction to described monitor terminal.
Described sending module 10 is additionally operable to after receiving described transmission request confirmation instruction multimedia file data is packaged as Frame to be sent, and by a data communication protocol, described Frame is split into some packets when the length of described Frame is more than a threshold value, and continuously transmitted packet to described server 2 by Socket interface, and send an end of transmission instruction to described server 2 after having sent all packets.
And the length of Frame less than described threshold value time need not split into multiple packet, can directly transmit, sending module is adopt to carry out continuously transmitting packet without the mode of interval when continuously transmitting packet.
Described receiver module 20 is additionally operable to write in described multimedia file by the packet received, and check that whether the multimedia file data received is complete after receiving described end of transmission instruction, if it is complete, then send one to described monitor terminal and receive complete reception identification instruction for characterizing packet, if imperfect, then send one for characterizing the reception identification instruction of the data block of disappearance to described monitor terminal.
Specifically, receive the content of identification instruction characterize when being sky packet receive complete, characterize packet when the data block identifier that content is disappearance and receive imperfect, namely have the data block of disappearance.
Described sending module 10 is additionally operable to resolve described reception identification instruction, if described reception identification instruction characterizes the data block having disappearance, then the data block of disappearance is repacked and pass through Socket interface and again continuously transmit to described server, receive complete if described reception identification instruction characterizes packet, then the transmission of ending multimedia file data.
The monitor terminal of the present embodiment is when sending multiple packet, without request server, a confirmation frame is all replied in the transmission of each packet, greatly reduce the quantity confirming information frame of server end feedback in transmitting procedure, improve the efficiency of transmission of multimedia file data.
Embodiment 2
This enforcement provides a kind of multimedia file data transmission method, and it utilizes the described multimedia file data transmission system described in embodiment 1 to realize, as in figure 2 it is shown, comprise the following steps:
Step 101, described sending module send a transmission request instruction to described server；
Wherein, sending module first obtains multimedia file data, and the photographic head that can pass through monitor terminal obtains picture, to transmit image data.And transmit request instruction and include a verification message, whether this check information is correct for the content of the transmission request instruction that server end checking receives, multimedia file just can be set up when the content of request instruction is correct, and in data base, set up multimedia file data transmission log, monitor terminal one can be fed back to time incorrect and characterize the instruction of transmission request instruction mistake.
Step 102, described receiver module create a multimedia file after receiving described transmission request instruction, and send a transmission request confirmation instruction to described monitor terminal；
Wherein, multimedia file is for depositing the multimedia file data that monitor terminal sends, and request of transmitting confirms that instruction refers to that server end has received transmission request instruction, waits monitor terminal upload multimedia file data.
Multimedia file data is packaged as Frame to be sent by step 103, described sending module after receiving described transmission request confirmation instruction, and by a data communication protocol, described Frame is split into some packets when the length of described Frame is more than a threshold value, and continuously transmitted packet to described server by Socket interface, and send an end of transmission instruction to described server after having sent all packets；
Wherein, monitor terminal by the length of Frame more than described threshold value time multimedia file data resolved into the form continuous continual transmission successively of multiple binary data packets, and the length of Frame less than described threshold value time need not split into multiple packet, therefore can directly described Frame be sent to described server by Socket interface.And Frame with the addition of data check information, data receiver to whether the content of whole multimedia file data correctly verifies, if correctly, then can obtain corresponding data content after receiving data check information, if incorrect, then feed back to monitor terminal one and characterize the instruction of frame data mistake.
In transmission process, server can't feed back to the confirmation information frame of the monitor terminal each packet to receiving.
Equally, end of transmission instruction also includes a verification message, whether this check information is correct for the content of the end of transmission instruction that server end checking receives, check that when the content of end of transmission instruction is correct whether the multimedia file data received is complete, monitor terminal one can be fed back to time incorrect and characterize the instruction of end of transmission instruction errors.
The packet received is write in described multimedia file by step 104, described receiver module, and check that whether the multimedia file data received is complete after receiving described end of transmission instruction, if it is complete, then send one to described monitor terminal and receive complete reception identification instruction for characterizing packet, if imperfect, then send one for characterizing the reception identification instruction of the data block of disappearance to described monitor terminal；
Wherein, if completely refer to: whether have received all of packet.
Step 105, described sending module resolve described reception identification instruction, if described reception identification instruction characterizes the data block having disappearance, then the data block of disappearance is repacked and pass through Socket interface and again continuously transmit to described server, receive complete if described reception identification instruction characterizes packet, then the transmission of ending multimedia file data.
Assume the data block identifier that content is disappearance receiving identification instruction, then the data block of disappearance can be resend, namely the data block of disappearance repacked by sending module, the packet of disappearance is continuously transmitted to server, and send an end of transmission instruction when the packet end of transmission of all disappearances to server end, whether the packet of the disappearance resend later that server end inspection receives is complete, if it is complete, then illustrate that whole multimedia file data is transmitted, therefore can send, to monitor terminal, the reception identification instruction that a content is sky, and revise the reception mark in data-base recording, thus the transmission of ending multimedia file data, if it is imperfect, then may proceed to notify that the data block of disappearance is carried out packing and resends by monitor terminal, until server receives complete multimedia file data.
For independent monitor terminal perform corresponding operating flow chart can as it is shown on figure 3, and the flow chart of corresponding operating is performed for independent server can be as shown in Figure 4.
Visible, the process resending packet is until just can terminate when complete multimedia file data is transmitted.For the data transfer mode of existing " question-response ", the present embodiment greatly reduces the quantity confirming information frame of server end feedback in transmitting procedure, improve the efficiency of transmission of multimedia file data, it also avoid and frequently receive the consuming crossing various flow that the confirmation information frame of server causes, also ensure the integrity of multimedia file data transmission.
Although the foregoing describing the specific embodiment of the present invention, it will be appreciated by those of skill in the art that these are merely illustrative of, protection scope of the present invention is defined by the appended claims.Those skilled in the art is under the premise without departing substantially from principles of the invention and essence, it is possible to these embodiments are made various changes or modifications, but these change and amendment each falls within protection scope of the present invention.
Claims (8)
1. a multimedia file data transmission system, it is characterised in that including a monitor terminal and a server, described monitor terminal is set up TCP/IP with described server and is connected, and described monitor terminal includes a sending module, and described server includes a receiver module；
Described sending module is for sending a transmission request instruction to described server；
Described receiver module for creating a multimedia file after receiving described transmission request instruction, and sends a transmission request confirmation instruction to described monitor terminal；
Described sending module is additionally operable to after receiving described transmission request confirmation instruction multimedia file data is packaged as Frame to be sent, and by a data communication protocol, described Frame is split into some packets when the length of described Frame is more than a threshold value, and continuously transmitted packet to described server by Socket interface, and send an end of transmission instruction to described server after having sent all packets；
Described receiver module is additionally operable to write in described multimedia file by the packet received, and check that whether the multimedia file data received is complete after receiving described end of transmission instruction, if it is complete, then send one to described monitor terminal and receive complete reception identification instruction for characterizing packet, if imperfect, then send one for characterizing the reception identification instruction of the data block of disappearance to described monitor terminal；
Described sending module is additionally operable to resolve described reception identification instruction, if described reception identification instruction characterizes the data block having disappearance, then the data block of disappearance is repacked and pass through Socket interface and again continuously transmit to described server, receive complete if described reception identification instruction characterizes packet, then the transmission of ending multimedia file data.
2. multimedia file data transmission system as claimed in claim 1, it is characterised in that described sending module is additionally operable to directly sent to described server by Socket interface by described Frame when the length of described Frame is less than described threshold value.
3. multimedia file data transmission system as claimed in claim 1, it is characterised in that packet reception is complete, characterize, when the data block identifier that content is disappearance, the data block having disappearance for characterizing when content is sky for described reception identification instruction.
4. in claim 1-3 as described in any one multimedia file data transmission system, it is characterised in that packet is continuously transmitted to described server by described sending module in the way of without interval.
5. a multimedia file data transmission method, it is characterised in that it utilizes multimedia file data as claimed in claim 1 transmission system to realize, and comprises the following steps:
S1, described sending module to described server send one transmission request instruction；
S2, described receiver module creates a multimedia file after receiving described transmission request instruction, and sends a transmission request to described monitor terminal and confirm instruction；
S3, described sending module confirm to be packaged as by multimedia file data after instruction Frame to be sent receiving described transmission request, and by a data communication protocol, described Frame is split into some packets when the length of described Frame is more than a threshold value, and continuously transmitted packet to described server by Socket interface, and send an end of transmission instruction to described server after having sent all packets；
S4, described receiver module the packet that receives is write in described multimedia file, and check that whether the multimedia file data received is complete after receiving described end of transmission instruction, if it is complete, then send one to described monitor terminal and receive complete reception identification instruction for characterizing packet, if imperfect, then send one for characterizing the reception identification instruction of the data block of disappearance to described monitor terminal；
S5, described sending module resolve described reception identification instruction, if described reception identification instruction characterizes the data block having disappearance, then the data block of disappearance is repacked and pass through Socket interface and again continuously transmit to described server, receive complete if described reception identification instruction characterizes packet, then the transmission of ending multimedia file data.
6. multimedia file data transmission method as claimed in claim 5, it is characterised in that step S3Described in sending module directly described Frame is sent to described server by Socket interface when the length of described Frame is less than described threshold value.
7. multimedia file data transmission method as claimed in claim 5, it is characterised in that characterize packet when the content of described reception identification instruction is sky and receive completely, characterize, when the data block identifier that content is disappearance, the data block having disappearance.
8. multimedia file data transmission method as described in any one in claim 5-7, it is characterised in that step S3Described in sending module in the way of without interval, packet is continuously transmitted to described server.
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| CN106530103A (en) * | 2016-10-11 | 2017-03-22 | 北京农业智能装备技术研究中心 | Aviation plant protection operation real-time supervision system |
| CN106713317A (en) * | 2016-12-22 | 2017-05-24 | 上海帝联信息科技股份有限公司 | Method and device for transmitting streaming media file |
| CN108600045A (en) * | 2018-04-05 | 2018-09-28 | 厦门快商通信息技术有限公司 | A kind of service link monitoring method and device |
| CN108877059A (en) * | 2018-06-08 | 2018-11-23 | 廊坊新奥燃气设备有限公司 | Internet of Things gas meter, flow meter settlement method, Internet of Things gas meter, flow meter and meter reading Platform Server |
| CN108934004A (en) * | 2018-09-17 | 2018-12-04 | 成都心吉康科技有限公司 | A kind of read method and device of classics blue-teeth data |
| CN108966187A (en) * | 2018-06-06 | 2018-12-07 | 四川斐讯全智信息技术有限公司 | A kind of data transmission method and system based on BLE |
| CN110324297A (en) * | 2018-03-30 | 2019-10-11 | 武汉斗鱼网络科技有限公司 | A kind of message treatment method and device |
| CN110677220A (en) * | 2019-09-09 | 2020-01-10 | 无锡江南计算技术研究所 | RDMA (remote direct memory Access) message mechanism based on multi-track redundant response and implementation device thereof |
| CN111211878A (en) * | 2018-11-22 | 2020-05-29 | 杭州海康威视***技术有限公司 | File transmission method, device and system and electronic equipment |
| CN111245934A (en) * | 2020-01-10 | 2020-06-05 | 深圳壹账通智能科技有限公司 | Feedback method, device and equipment for file transmission and storage medium |
| CN117042041A (en) * | 2023-07-06 | 2023-11-10 | 佰路威科技(上海)有限公司 | Data transmission method, device, electronic equipment, storage medium and program product |
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