Optimizing Method for Real-time Monitoring and Remote Transmission Effectiveness of Internet of Things Based on Beidou Message

Abstract

The invention relates to a method for optimizing the effectiveness of real-time monitoring of remote transmission of the Internet of Things based on Beidou messages. According to the importance of indicators, the data is divided into three types: emergency indicators, common indicators and redundant indicators; 2) According to the type of each indicator, the transmission method of each indicator is formulated through frequency conversion and frame scheduling; 3) According to the indicator transmission method, the bits are divided Mapping queue, through the bit mapping queue, the sending end transmits the frequency conversion framing scheduling information to the receiving end; 4) Compress the index elements of "occupancy transmission" in Data_Que by using the index effective element compression method, and retain the effective index elements; 5) According to the data in Data_Que The width of effective index elements of each index is calculated to record the number of packets, and the first bit of each index mapping of Head_Que is completed; 6) Head_Que and Data_Que are the actual forms of the optimized monitoring data in the remote transmission of Beidou messages.

Description

technical field [0001] The invention relates to a Beidou message-based Internet of Things real-time monitoring remote transmission effectiveness optimization method, which belongs to the fields of Beidou satellite communication and Internet of Things real-time monitoring. Background technique [0002] The Internet of Things and Beidou message service are very suitable for remote real-time monitoring. The reasons are as follows: 1) The sensing part of the Internet of Things - the wireless sensor network has flexible layout and strong self-organization ability, and can monitor in harsh conditions and even dangerous places ; 2) Beidou message service covers the Asia-Pacific region. Choosing Beidou message service as the remote transmission backbone of the Internet of Things can solve the problem that there is no Internet remote transmission backbone in remote areas, and the mobile signal or even weak signal leads to the problem that data cannot be transmitted. For example, as ea...

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Problems solved by technology

[0004] With the continuous development of research, many experts and scholars have improved the effectiveness of Beidou message remote transmission through the following methods: 1) through a Beidou terminal design scheme with multiple SIM cards, the number of SIM cards in a Beidou terminal is increased to multiple Zhang, for example, the Beidou large-capacity data transmission module developed by Aerospace Science and Technology Corporation 772 uses a similar processing method, but this method actually improves transmission efficiency by increasing hardware costs; 2) According to the characteristics of Chinese character GB2312 encoding, Remap the GB2312 code to reduce the number of binary digits required to represent each Chinese character, so as to realize the compression of Chinese character text in Beidou message transmission. The disadvantage is that similar methods are only for Chinese characters, and the scope of application is relatively narrow; 3) Adopt Compression algorithms such as Huffman, LZ78, and LZW compress Beidou message data. The disadvantage is that the sender must additionally send the encoding table of the compression algorithm to the receiver.

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