Beidou Satellite-based reliable remote communication method and communication device

Abstract

The invention discloses a Beidou Satellite-based reliable remote communication method and a Beidou Satellite-based reliable remote communication device. The method comprises the steps as follows: customizing a remote communication protocol according to a TCP / IP protocol and a Beidou communication protocol, establishing an effective transmission mechanism via a sub-package sticking strategy, a packet loss feedback mechanism and an error check strategy, and managing Beidou communication equipment by developing three sub-threads in Beidou communication equipment. The device comprises a customization controller, a transmission controller and a management controller. Reliable and effective Beidou Satellite-based data interaction of a plurality of user terminals in two local area networks is achieved via three controllers. The method and the device of the invention improve reliability of the Beidou communication, communication efficiency and establish a reliable and stable point-to-point communication link without a blind area. The information interaction between the user terminals and the Beidou communication device is achieved by fusing a Beidou communication network and the local area networks so as to establish a long-distance data transmission network supporting the plurality of user terminals.

Description

technical field [0001] The invention relates to the field of long-distance communication, in particular to a reliable long-distance communication method based on Beidou satellites and a communication device thereof. Background technique [0002] In recent years, the frequent occurrence of natural disasters has led to the breakdown of communication equipment and the interruption of communication links, which has caused immeasurable losses to the economy; and the communication blind spots in remote areas have also brought great inconvenience to monitoring and management. Building a reliable communication link without blind spots is of great significance for reducing losses caused by disasters and monitoring and management, and has become an important topic of current research. [0003] The commonly used emergency means are: wireless trunking communication, ground microwave communication, radio station communication and Beidou communication. However, the existing long-distance...

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Problems solved by technology

However, the existing long-distance communication methods all have their own shortcomings: the coverage of wireless cluster communication is small; the microwave transmission must be directly viewed between adjacent stations, and there must be no obstacles, and sometimes distortion due to multipath effects; the quality of radio station communication transmission Unstable, the signal is easily interfered or intercepted, and the confidentiality is poor

[0005] 1. Beidou communication is unreliable, and there is no communication receipt during communication, that is, during the communication process, the sender of the Beidou user does not know whether the receiver is powered on and online and whether the data is received;

[0006] 2. Beidou communication has no error checking mechanism, and the Beidou receiver cannot judge whether the received information is distorted;

[0007] 3. The Beidou civilian protocol sends once every 60 seconds, and the maximum data length is 75 bytes. The resource is very limited. If the user sends a message that is too long, it will be incomplete and easily lost when receiving it. If the user sends a message that is too short, it will not be filled. Sending data length causes byte waste;

[0008] 4. Beidou only supports end-to-end data transmission, and the range of data interaction is limited

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