Method exchanging information by Chinese character by shipborner automatic recognition system

An automatic recognition system, Chinese character technology, applied in the field of information exchange

Active Publication Date: 2007-07-18
SHANGHAI ADVANCED AVIONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the ship-borne automatic identification system (AIS) cannot directly use the codes

Method used

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  • Method exchanging information by Chinese character by shipborner automatic recognition system
  • Method exchanging information by Chinese character by shipborner automatic recognition system
  • Method exchanging information by Chinese character by shipborner automatic recognition system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0062] Use computer programming language C to write a program below, make ship-borne automatic identification system (AIS) in the popularization and application of China, directly realize the present invention with computer system, make the ship-borne automatic identification system that uses 6 ASCII codes to send and receive information by default, change The code uses the Chinese character code to send and receive information, and converts the internal code containing the basic set of Chinese characters and the sending and receiving code to store and send and receive information. A preferred implementation is as follows:

[0063] In the program, the sending and receiving parties agree that the character combination "&&&" is used as the code-escape feature code, and agree to use the encoding containing 13 basic set Chinese character codes as the sending and receiving codes, and the functions xToY_send and yToX_receive, AB14_to_ab13 () and ab13_to_AB14 () implement the algorithm...

example 1

[0232] Get machine internal code x1=0x41, because the 8th of x1 is " 0 ", by the formula substitution in the " internal code of invention is converted into the method that contains 13 basic set Chinese character codes " of content of the invention:

[0233] y1=0x41-0x40

[0234] = 0x01;

[0235] That is, the standard ASCII code 0x41 is converted to 6-digit ASCII code 0x01. Check Figure 1, we can see that it is the character "A" and the conversion is correct. Add "0" to the seventh digit to become 7 digits, and y1 is the sending and receiving code 0x01 representing the ASCII character.

example 2

[0237] Get the internal code x1=0xba, because the 8th bit of x1 is "1", get the second internal code x2=0xc3, clear the 8th bit of x1, x2 to "0", that is, x1=0x3a, x2 =0x43, this 14-bit code is checked in Fig. 2-2 and is Chinese character " good ", adopts the 13-bit coding method of GB2312 basic set Chinese character, promptly A=0x3a, B=0x43, substitute into formula one and formula two (referring to function AB14_to_ab13) get:

[0238] a=(0x3a-0x30)*4+|0x43 / 0x20|Take the quotient

[0239] = 0x2a,

[0240] b=0x43%0x20

[0241] = 0x03;

[0242] That is, the 13-digit code converted from "good" is 0x2a03, and the conversion is correct as shown in Figure 3-8; the 14th digit is added with "1", recorded as y1=0x6a, y2=0x03, which is the Chinese character "good" represented by 14 digits send and receive code.

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Abstract

This invention relates to a method for using Chinese characters to exchange information by a ship carried automatic identification system (AIS) characterizing in applying the character combination convention by the T-R parties as the character code of exchanging codes and applying T-R information containing Chinese codes convention by the two parties, in which, the two parties can transmit and receive ASCII code characters and Chinese words to exchange information easily.

Description

technical field [0001] The invention relates to a method for a computer system to exchange information using Chinese characters, in particular to a method for an embedded computer system that uses 6-bit ASCII codes to exchange information by default using Chinese characters and ASCII characters to exchange information, mainly used in ship-borne automatic identification systems ( AIS), which belongs to the field of information exchange technology. Background technique [0002] Shipborne Automatic Identification System (AIS) is an emerging ship and shore-based broadcasting system that works in the VHF maritime mobile frequency band. It is an advanced tool to promote navigation safety and improve shipping traffic management efficiency. AIS is a VHF radio transceiver, which can send and receive ship information and safety information such as identification code, ship position, course, speed, ship length, ship type and cargo information with other ships and AIS on shore. The rel...

Claims

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Application Information

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IPC IPC(8): H04L12/58G06F17/28
Inventor 夏华龙刘志磊赵东锋潘日虎
Owner SHANGHAI ADVANCED AVIONICS
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