Beidou satellite communication-based tidal level data acquisition and transmission device

Abstract

The invention relates to a Beidou satellite communication-based tidal level data acquisition and transmission device, which consists of two parts, i.e. a tidal level information forwarding part and a Beidou navigation part, wherein the tidal level information forwarding part is used for receiving tidal level information through a VHF (very high frequency) receiving antenna, demodulating the tidal level information through a data transceiver, transmitting the tidal level information to a data processing unit, processing data through the data processing unit, creating a compressed data packet, and transmitting the compressed data packet to a data register; the Beidou navigation part is used for transmitting the data to a Beidou navigation satellite according to a timeslot of a Beidou satellite navigation system at proper time. According to the device, the data transmission of Beidou satellite navigation has the characteristics of reliability, all-weather performance and remoteness, so that the tidal level data can be effectively transmitted to an area which cannot be covered by a conventional wireless data transmission board.

Description

technical field [0001] The invention belongs to the technical field of satellite communication equipment, in particular to a device for collecting and sending tide level data based on Beidou satellite communication. Background technique [0002] At present, the tide level information that dredger operations rely on comes from wireless base station signals. This model based on "wireless data transmission board" has been used for many years. The theory is reasonable and the equipment is reliable. , dredging, dredging, and gradually infiltrate into the practical activities of various dredging ships. The types of ship operations and the scope of activities are expanding day by day, and the requirements for the amount of data information and its accuracy, continuity, and stability are also increasing. Therefore, , by increasing the height of the antenna erection, the service area provided (about a dozen kilometers) is already stretched, and coupled with factors such as electromag...

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Problems solved by technology

[0002] At present, the tide level information that dredger operations rely on comes from wireless base station signals. This model based on "wireless data transmission board" has been used for many years. The theory is reasonable and the equipment is reliable. , dredging, dredging, and gradually infiltrate into the practical activities of various dredging ships. The types of ship operations and the scope of activities are expanding day by day, and the requirements for the amount of data information and its accuracy, continuity, and stability are also increasing. Therefore, , by increasing the height of the antenna erection, the service area provided (about a dozen kilometers) is already stretched, and coupled with factors such as electromagnetic wave interference in the working frequency band, some operating ships with self-propelled capabilities are usually subject to conventional digital transmission. The limitation of distance has become the bottleneck of many factors such as expanding the operating area, improving data accuracy, and enhancing system stability and reliability.

[0003] Conventional automatic tide reporting stations release the collected real-time tide level information on a certain channel of VHF or UHF in the form of broadcasting. Since VHF or UHF transmission is characterized by straight-line propagation, the operating distance is the visible distance, and it is impossible to achieve long-distance Transmission of tide level information by distance

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