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A kind of AIS navigation mark and communication method based on dedicated channel

A communication method and technology of dedicated channels, applied in the field of ship communication, can solve the problems of hidden dangers of communication safety, reduction of the number of ships, and low security of navigation aids telemetry and remote control data, so as to avoid mutual interference and improve the packet arrival rate.

Active Publication Date: 2015-09-02
WUHAN ZHONGYUAN ELECTRONICS GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the traditional AIS buoy telemetry and remote control data are transmitted on the AIS navigation aid information channel, the buoy telemetry and remote control data will inevitably occupy the resources of the AIS navigation aid navigation information channel, resulting in a reduction in the number of ships that can communicate with it; and the two types of data The transmission and processing in the same channel also interfere with each other; and the AIS system is an open broadcast system, and the hidden dangers of communication security cannot be ignored. Using this open broadcast system to transmit navigation mark telemetry and remote control data security Low, especially for data required by confidentiality

Method used

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  • A kind of AIS navigation mark and communication method based on dedicated channel
  • A kind of AIS navigation mark and communication method based on dedicated channel
  • A kind of AIS navigation mark and communication method based on dedicated channel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0086] like figure 1 As shown, an AIS navigation mark based on a dedicated channel includes a main control module and an AIS wireless transceiver module, the AIS wireless transceiver module is connected with the main control module, and the AIS wireless transceiver module includes a receiver for receiving AIS navigation aid information Channel, the third receiving channel 4 for receiving AIS navigation mark telemetry remote control data and the transmission channel 5 for transmitting AIS navigation aid navigation information and AIS navigation mark telemetry remote control data, the receiving frequency of the third receiving channel 4 and the receiving channel receiving frequency different.

[0087] The receiving channel includes a first receiving channel 2 and a second receiving channel 3, and the AIS wireless transceiver module also includes a modem unit 6, and the modem unit 6 transmits the AIS navigation aid information and the AIS navigation aid telemetry produced by the...

Embodiment 2

[0106] A communication method based on the AIS navigation mark of dedicated channel, comprising the following steps:

[0107] Timing processing steps are executed cyclically with the preset time as the cycle:

[0108] Step 1. Determine whether there is data in the GPS data cache, if so, read the GPS data and perform UTC time synchronization and enter the next step; otherwise, enter the next step;

[0109] Step 2. Determine whether the second of UTC time reaches 0 seconds, if so, enter the next step after clearing the time slot; otherwise, enter the next step;

[0110] Step 3, judging whether the time slot increase period has been reached, if so, enter the next step after increasing the time slot by 1; otherwise, enter the next step;

[0111] Step 4. Collect the current value of the navigation light and save it;

[0112] Step 5. Judging whether the number of current collection times required for light quality analysis has been reached, if so, perform light quality analysis an...

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Abstract

The invention discloses an AIS navigation mark based on a private channel which comprises a main control module and an AIS wireless receiving and dispatching module. The AIS wireless receiving and dispatching module used for receiving and dispatching an AIS message is connected with the main control module. The AIS wireless receiving and dispatching module comprises a first receiving channel, a second receiving channel, a third receiving channel and a transmitting channel, wherein the first receiving channel is used for receiving and dispatching aid-to-navigation information, the second receiving channel is used for receiving and dispatching the aid-to-navigation information, the third receiving channel is used for receiving a telemetry and telecontrol command message of the AIS navigation mark and the transmitting channel is used for transmitting the AIS message. The transmitting channel is controlled by the main control module and transmits the information received by the first receiving channel, the second receiving channel and the third receiving channel in a switching mode. The AIS navigation mark is simple in structure and convenient to use. A telemetry and telecontrol function of the AIS navigation mark is achieved, the situation that the telemetry and telecontrol message mutually interferes with the AIS message of a ship is avoided, and the use ratio of the AIS communication channels is increased.

Description

technical field [0001] The invention relates to the field of ship communication, in particular to an AIS navigation mark based on a special channel, and also relates to a communication method for the AIS navigation mark based on a special channel, which is suitable for communication and identification between ships. Background technique [0002] The main purpose of the AIS (Automatic identification System) ship automatic identification system is to send information such as the GPS position of the ship to other nearby ships in the form of broadcast, so that these ships can share important information related to the ship in a certain sea area, thereby completing the automatic identification of the ship. The monitoring function of identification can finally realize the safe driving of ships in rivers and seas, and avoid traffic accidents such as collisions. The traditional AIS navigation mark mainly broadcasts the AIS No. 21 message on the CH87B or CH88B AIS default channel, pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/40G08C17/02H04L29/06G01S19/42
Inventor 张东华吴勇任学锋周文杏
Owner WUHAN ZHONGYUAN ELECTRONICS GRP