CN114785462A - Communication method for preventing packet loss - Google Patents
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- 238000000034 method Methods 0.000 title claims abstract description 19
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- 238000006243 chemical reaction Methods 0.000 claims description 4
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1867—Arrangements specially adapted for the transmitter end
- H04L1/188—Time-out mechanisms
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/1607—Details of the supervisory signal
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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
- H04L67/14—Session management
- H04L67/141—Setup of application sessions
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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
- H04L67/14—Session management
- H04L67/143—Termination or inactivation of sessions, e.g. event-controlled end of session
- H04L67/145—Termination or inactivation of sessions, e.g. event-controlled end of session avoiding end of session, e.g. keep-alive, heartbeats, resumption message or wake-up for inactive or interrupted session
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
- H04L69/163—In-band adaptation of TCP data exchange; In-band control procedures
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Abstract
本发明公开一种防丢包的通信方法，包括以下步骤：客户端通过通信设备向服务器发起连接请求；服务器响应连接请求，客户端通过心跳与服务器维持长连接；客户端向服务器发送预检测数据包副本并保存数据包副本；服务器接收并校验数据包副本；数据包副本校验通过后，客户端向服务器发送数据包正本；服务器接收保存并校验数据包正本；数据包正本校验通过，数据包接收成功；客户端删除数据包副本。本发明提供的一种防丢包的通信方法，可保障通信质量，使数据准确无误的发送，以确保依赖通讯的设备、服务，能够减少网络质量的依赖，减少网络问题引发的故障、错误。
The invention discloses a communication method for preventing packet loss, comprising the following steps: a client initiates a connection request to a server through a communication device; the server responds to the connection request, and the client maintains a long connection with the server through heartbeat; the client sends pre-detection data to the server Packet copy and save the data packet copy; the server receives and verifies the data packet copy; after the data packet copy verification is passed, the client sends the original data packet to the server; the server receives and saves and verifies the original data packet; the original data packet verification passes , the packet is received successfully; the client deletes the copy of the packet. The invention provides a communication method for preventing packet loss, which can ensure communication quality, enable data to be sent accurately, ensure equipment and services relying on communication, reduce dependence on network quality, and reduce failures and errors caused by network problems.
Description
技术领域technical field
本发明涉及通信技术领域，具体涉及一种防丢包的通信方法。The present invention relates to the technical field of communication, in particular to a communication method for preventing packet loss.
背景技术Background technique
无线网络通信过程中，由于外界因素影响，常常容易受到干扰，容易引发丢包现象，从而使得依赖于网络通信的设备、服务等失去控制，得不到有效的指令，引发故障。In the process of wireless network communication, due to the influence of external factors, it is often susceptible to interference, which can easily lead to packet loss, so that equipment and services that depend on network communication are out of control, and effective instructions cannot be obtained, causing failures.
发明内容SUMMARY OF THE INVENTION
本发明的目的在于克服现有技术的不足，提供一种防丢包的通信方法，可保障通信质量，使数据准确无误的发送，以确保依赖通讯的设备、服务，能够减少网络质量的依赖，减少网络问题引发的故障、错误。The purpose of the present invention is to overcome the deficiencies of the prior art, and to provide a communication method for preventing packet loss, which can ensure the quality of communication, enable accurate data transmission, ensure equipment and services that rely on communication, and reduce the dependence on network quality. Reduce failures and errors caused by network problems.
本发明的技术方案如下：The technical scheme of the present invention is as follows:
一种防丢包的通信方法，包括以下步骤：A communication method for preventing packet loss, comprising the following steps:
客户端通过通信设备向服务器发起连接请求；The client initiates a connection request to the server through the communication device;
服务器响应连接请求，客户端通过心跳与服务器维持长连接；The server responds to the connection request, and the client maintains a long connection with the server through heartbeat;
客户端向服务器发送预检测数据包副本并保存数据包副本；The client sends a copy of the pre-detected data packet to the server and saves the copy of the data packet;
服务器接收并校验数据包副本；The server receives and verifies the copy of the data packet;
数据包副本校验通过后，客户端向服务器发送数据包正本；After the verification of the copy of the data packet is passed, the client sends the original of the data packet to the server;
服务器接收保存并校验数据包正本；The server receives and saves and verifies the original data packet;
数据包正本校验通过，数据包接收成功；The original verification of the data packet is passed, and the data packet is received successfully;
客户端删除数据包副本。The client deletes the packet copy.
其中，客户端与服务器之间基于TCP通信协议连接。The connection between the client and the server is based on the TCP communication protocol.
其中，数据包基于十六进制字节，每个字节所在数据包的位置和数据，客户端和服务器均有对应的字典转换和解析。Among them, the data packet is based on hexadecimal bytes, and the client and server have corresponding dictionary conversion and parsing for the location and data of the data packet where each byte is located.
其中，数据包副本、数据包正本均采用相同校验算法。Among them, the copy of the data packet and the original of the data packet use the same verification algorithm.
其中，若数据包副本校验不通过，客户端则无法向服务器发送数据包正本。Among them, if the verification of the copy of the data packet fails, the client cannot send the original of the data packet to the server.
其中，若数据包正本校验超时，客户端重新向服务器发送数据包正本。Among them, if the verification of the original data packet times out, the client re-sends the original data packet to the server.
其中，若数据包正本校验不通过，服务器将不作回复。Among them, if the original verification of the data packet fails, the server will not reply.
相对于现有技术，本发明的有益效果在于：Compared with the prior art, the beneficial effects of the present invention are:
1、客户端基于TCP通信协议通过心跳与服务器维持长连接，可以减少TCP连接繁琐的握手机制；1. The client maintains a long connection with the server through heartbeat based on the TCP communication protocol, which can reduce the cumbersome handshake mechanism of the TCP connection;
2、数据包简化，数据包基于十六进制字节，每个字节所在数据包的位置和数据，客户端和服务器均有对应的字典转换和解析，因此，几个字节简单的数据包通过字典即可转换成较为复杂的语义进行逻辑处理，传输的数据量大量减少，数据包对良好网络状态的依赖将会得到缓解；2. The data packet is simplified. The data packet is based on hexadecimal bytes. The location and data of the data packet where each byte is located. Both the client and the server have corresponding dictionary conversion and parsing. Therefore, a few bytes of simple data Packets can be converted into more complex semantics for logical processing through the dictionary, the amount of transmitted data is greatly reduced, and the dependence of data packets on good network status will be alleviated;
3、数据包副本、数据包正本均采用相同的校验算法，可以核对数据包是否完整；3. The same verification algorithm is used for the copy of the data packet and the original of the data packet, which can check whether the data packet is complete;
4、客户端在发送数据包正本之前先发送数据包副本，并对数据包副本进行保存，在校验通过后再向服务器发送数据包正本，服务器接收保存并校验数据包正本，数据包正本校验通过后，客户端才会释放数据包副本，达到了防丢包的效果。4. The client sends a copy of the data packet before sending the original of the data packet, and saves the copy of the data packet. After the verification is passed, it sends the original of the data packet to the server. The server receives and saves and verifies the original of the data packet. After the verification is passed, the client will release the copy of the data packet, which achieves the effect of preventing packet loss.
附图说明Description of drawings
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only for the present invention. In some embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without any creative effort.
图1为本发明的方法流程图。FIG. 1 is a flow chart of the method of the present invention.
具体实施方式Detailed ways
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.
为了说明本发明所述的技术方案，下面通过具体实施例来进行说明。In order to illustrate the technical solutions of the present invention, the following specific embodiments are used for description.
实施例Example
请参阅图1，本实施例提供一种防丢包的通信方法，包括以下步骤：Referring to FIG. 1, this embodiment provides a communication method for preventing packet loss, including the following steps:
客户端通过通信设备向服务器发起TCP连接请求；The client initiates a TCP connection request to the server through the communication device;
服务器响应TCP连接请求，客户端通过心跳与服务器维持长连接；The server responds to the TCP connection request, and the client maintains a long connection with the server through heartbeat;
客户端向服务器发送预检测数据包副本并保存数据包副本；The client sends a copy of the pre-detected data packet to the server and saves the copy of the data packet;
服务器接收并校验数据包副本；The server receives and verifies the copy of the data packet;
数据包副本校验通过后，客户端向服务器发送数据包正本，若数据包副本校验不通过，客户端则无法向服务器发送数据包正本；After the verification of the copy of the data packet is passed, the client sends the original of the data packet to the server. If the verification of the copy of the data packet fails, the client cannot send the original of the data packet to the server;
服务器接收保存并校验数据包正本，若数据包正本校验超时，客户端重新向服务器发送数据包正本；The server receives, saves and verifies the original data packet. If the original data packet verification times out, the client sends the original data packet to the server again;
数据包正本校验通过，数据包接收成功，若数据包正本校验不通过，服务器将不作回复；If the original verification of the data packet passes, the data packet is received successfully. If the original verification of the data packet fails, the server will not reply;
数据包接收成功后，客户端删除数据包副本。After the packet is received successfully, the client deletes the copy of the packet.
该方法基于TCP通信协议，采用长连接、简化数据包、校验数据包、中间存储与多次确认接收的方式达到防丢包的效果。The method is based on the TCP communication protocol, and adopts the methods of long connection, simplified data packet, verification data packet, intermediate storage and multiple confirmation reception to achieve the effect of preventing packet loss.
原理：principle:
1、客户端基于TCP通信协议通过心跳与服务器维持长连接，可以减少TCP连接繁琐的握手机制；1. The client maintains a long connection with the server through heartbeat based on the TCP communication protocol, which can reduce the cumbersome handshake mechanism of the TCP connection;
2、数据包简化，数据包基于十六进制字节，每个字节所在数据包的位置和数据，客户端和服务器均有对应的字典转换和解析，因此，几个字节简单的数据包通过字典即可转换成较为复杂的语义进行逻辑处理，传输的数据量大量减少，数据包对良好网络状态的依赖将会得到缓解；2. The data packet is simplified. The data packet is based on hexadecimal bytes. The location and data of the data packet where each byte is located. Both the client and the server have corresponding dictionary conversion and parsing. Therefore, a few bytes of simple data Packets can be converted into more complex semantics for logical processing through the dictionary, the amount of transmitted data is greatly reduced, and the dependence of data packets on good network status will be alleviated;
3、数据包副本、数据包正本均采用相同的校验算法，可以核对数据包是否完整；3. The same verification algorithm is used for the copy of the data packet and the original of the data packet, which can check whether the data packet is complete;
4、客户端在发送数据包正本之前先发送数据包副本，并对数据包副本进行保存，在校验通过后再向服务器发送数据包正本，服务器接收保存并校验数据包正本，数据包正本校验通过后，客户端才会释放数据包副本，达到了防丢包的效果。4. The client sends a copy of the data packet before sending the original of the data packet, and saves the copy of the data packet. After the verification is passed, it sends the original of the data packet to the server. The server receives and saves and verifies the original of the data packet. After the verification is passed, the client will release the copy of the data packet, which achieves the effect of preventing packet loss.
以上仅为本发明的较佳实施例而已，并不用于限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention. Inside.
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| CN115733901A (en) * | 2022-10-31 | 2023-03-03 | 杭州思创汇联科技有限公司 | A TCP/IP-based IoT device communication method |
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Application publication date: 20220722 |