Beidou satellite automatic sending system of meteorological data

Abstract

The invention relates to a Beidou satellite automatic sending system of meteorological data, belonging to the field of meteorological equipment manufacture and comprising an automatic meteorological detector 1, a protocol converter 2 connected with the automatic meteorological detector 1 through a RS-232 interface and a Beidou satellite communication terminal 3 connected with the protocol converter 2 through a RS-232 interface. The protocol converter 2 receives the meteorological data sent by the automatic meteorological detector 1 through the RS-232 interface, then compresses the meteorological data to 93 bytes by adopting a dictionary method, and finally compiles the meteorological data into a data packet of a Beidou satellite terminal and sends the data packet to a Beidou satellite communication terminal 3 through another RS-232 interface; the Beidou satellite communication terminal 3 transmits the data to the satellite which sends the data back to a meteorological center. The system is suitable to work in field peopleless environments for a long time, and has the advantages of high transmission efficiency and low price.

Description

technical field [0001] The invention discloses a Beidou satellite automatic sending system of meteorological data, which belongs to the field of meteorological equipment manufacturing, in particular to the manufacturing of meteorological communication equipment. Background technique [0002] When the existing automatic weather detector transmits data to the meteorological center, it can use GSM and other systems for wireless data transmission. However, for remote areas, since commercial systems such as GSM do not have network coverage, satellites can only be used for relay and forwarding. The existing devices that automatically send weather data through satellites require large-scale antennas and complex transmission systems, which cannot Realize unattended. Therefore, it is difficult to use in areas with harsh environments, and the cost is also high. [0003] Beidou satellite is China's first generation regional navigation satellite system, which can realize 24-hour unint...

AI Technical Summary

Problems solved by technology

The detection data generated by the automatic weather detector 1 is 183 effective bytes per hour, together with the carriage return and line feed character at the end of the message, a total of 185 bytes, which exceeds the data length supported by the Beidou satellite data terminal 3, and must be dismantled. Therefore, it not only takes up more resources of the Beidou satellite communication channel, but also reduces the transmission timeliness due to unpacking and reassembly.

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