Shortwave meteorological data transmission method and transmission system

A technology of meteorological data and transmission system, applied in transmission system, broadcasting system reception, electrical components, etc., can solve the problems of scattered paging targets at sea, difficulty in establishing multiple base stations, and large service area, and achieve wide coverage and prevent Interference, the effect of ensuring reliable operation

Inactive Publication Date: 2005-01-26
FENGHUO GROUP CORP SHAANXI
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  • Description
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AI Technical Summary

Problems solved by technology

Maritime paging targets are dispersed, the service area is large, and it is difficult to establish multiple base stations. Therefore, it is difficult for a general land paging system to provide accurate, Timely and reliable weather forecast information service and other commercial services

Method used

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  • Shortwave meteorological data transmission method and transmission system
  • Shortwave meteorological data transmission method and transmission system
  • Shortwave meteorological data transmission method and transmission system

Examples

Experimental program
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Embodiment Construction

[0026] combined with figure 2 , 3 , 4, 5, 6 describe an embodiment of the present invention.

[0027] Transmission method:

[0028] ①The weather information collected in real time is sorted and classified through the main control computer to generate the weather forecast information data of each sea area, and then the data is injected into the network controller at one time, the data is grouped by the network controller, and the grouped data information Converted to audio information and sent to shortwave radio.

[0029] ②The short-wave single-sideband channel is adopted by the short-wave radio station, and the multi-channel grouping is automatically sent, so that each group of information can be distributed in multiple packets.

[0030] ③ The short-wave single sideband receiver adopts multi-channel automatic scanning and receiving method, receives each group of information multiple times, and then uses the large number judgment method to eliminate the data with wrong pack...

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PUM

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Abstract

The invention is a shortwave-based weather data transmitting method and system, composed of master control computer, network controller, shortwave station, transmitting aerial, receiving antenna and shortwave receiver, where RS-232 terminal of the network controller is connected with COM1 or COM2 port of the master control computer, ACC1 terminal of the network controller is connected with REM1 terminal of the shortwave station and the shortwave receiver is a shortwave single-sideband receiver. Classify the real-time collected weather information by the master control computer to generate weather forecast information data of each sea region, primarily input the information data to the network controller for grouping, convert the grouped information data to audio frequency information to send to the shortwave station, adopt shortwave single-sideband channel to transmit multiple packets in multicahnnel packet auto-transmitting mode, adopt a multichannel auto-scanning receiving mode to receive them many times, join and integrate the exact data according to packet number into a piece of complete information. It can provide accurate, in-time, reliable weather forecast information service and other business service for moving ships.

Description

technical field [0001] The invention relates to a short-wave meteorological data transmission method and transmission system. It can provide accurate, timely and reliable weather forecast information services and other commercial services for mobile ships in different sea areas, different time periods and different weathers within a range of 0 to 1000 kilometers. Background technique [0002] The radio paging system in the prior art adopts the VHF or UHF frequency band, and often requires an elevated antenna or multiple base stations to cover the service area. The targets of maritime paging are scattered, the service area is large, and it is difficult to establish multiple base stations. Therefore, it is difficult for general land paging systems to provide accurate, accurate, accurate and accurate information for mobile vessels in different sea areas, time periods and weather within a range of 0 to 1000 kilometers. Timely and reliable weather forecast information services a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04H20/33G01W1/00H04B1/16H04H20/53H04H40/27
CPCY02A90/10
Inventor 李振友王铁勇钟文麟胡荣及权连让崔淇路彬张会军宋志英刘生玉王剑锋
Owner FENGHUO GROUP CORP SHAANXI
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