Internet-of-things real-time monitoring remote transmission validity optimization method based on Big Dipper message

Abstract

The invention relates to an Internet-of-things real-time monitoring remote transmission validity optimization method based on a Big Dipper message. A validity analysis method comprises the following steps that 1) in a monitoring system based on the Big Dipper message, monitoring data is gathered and an index is divided into an emergency index, a common index and a redundancy index according to an important degree of the index; 2) according to a type of each index, a sending mode of each index is made through frequency conversion framing scheduling; 3) according to the index sending mode, a bit mapping queue is divided, and through the bit mapping queue, a sending terminal transmits frequency conversion framing scheduling information to a receiving terminal; 4) an index effective element compression method is used to compress an index factor of ''placeholder sending'' in Data_Que and an effective index factor is reserved; 5) according to a width of the effective index factor of each index in the Data_Que, the number of subpackages are calculated and recorded, and a first bit of each index mapping of Head_Que is supplemented; 6) the Head_Que and the Data_Que are actual forms of optimized monitoring data in Big Dipper message remote transmission.

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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