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Method for working of automatic identification terminal device of ship under severe global positioning system (GPS) location environment

A technology for automatic ship identification and GPS positioning, which is applied in ship traffic control, instruments, traffic control systems, etc. It can solve problems such as increased power consumption of equipment, long GPS module positioning time, and affecting the sending cycle of AIS messages, etc., to increase stability Effect

Active Publication Date: 2014-08-13
TIANJIN 712 COMM & BROADCASTING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the GPS positioning time is affected by weather, shelters, etc., the GPS module may have a long positioning time, which will affect the AIS message sending cycle and increase the power consumption of the device.

Method used

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  • Method for working of automatic identification terminal device of ship under severe global positioning system (GPS) location environment
  • Method for working of automatic identification terminal device of ship under severe global positioning system (GPS) location environment
  • Method for working of automatic identification terminal device of ship under severe global positioning system (GPS) location environment

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Embodiment Construction

[0026] In order to understand the present invention more clearly, the present invention will be further described below in conjunction with accompanying drawing and embodiment: Refer to figure 1 , the ship's automatic identification terminal equipment includes an ARM control module, a radio frequency module, a GPS module, a clock module, a control panel and a power supply module composed of a clock calibration and compensation module, a message sending module, a GPS control module and a dormancy control module. The ARM The control module is respectively connected with the radio frequency module, the GPS module, the clock module, the control panel and the power module, and the power module is respectively connected with the radio frequency module, the GPS module, the clock module and the control panel.

[0027] The function of each module of the present invention is as follows:

[0028] 1) Radio frequency module: a commonly known module, used to broadcast static / dynamic message...

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Abstract

The invention relates to a method for working of an automatic identification terminal device of a ship under a severe global positioning system (GPS) location environment. The method comprises locating by controlling a GPS module, conducting time synchronization and selecting an appointed channel to send advanced information sheet (AIS) information after completing the time synchronization in the GPS module. By means of the method, the automatic identification terminal device of the ship can maintain a normal information sending period and can still guarantee certain location times under the condition of the poor GPS location condition, the device can be in sleepy with low power consumption, and accordingly working stability of the automatic identification terminal device of the ship under the severe condition can be strengthened. The method is favorable for normal use of AIS equipment under the severe environment, can effectively guarantee normal use of the automatic identification terminal device of the ship, is wide in applicable scope and has promotional values.

Description

technical field [0001] The invention relates to a ship automatic identification system, in particular to a method for a ship automatic identification terminal device working in a harsh GPS positioning environment. Background technique [0002] The ship automatic identification system (AIS) obtains the current position information through the global positioning system (GPS), and transmits its own ship position, ship speed, course and other dynamic information as well as ship name, call sign, draft and dangerous goods and other static data through the VHF (VHF) channel to broadcast to nearby ships and shore stations. By receiving the broadcast ship information, the surrounding ships can grasp the ship information in the nearby sea area in time, and take necessary avoidance actions to improve the safety of ship navigation. [0003] Since the premise of sending AIS messages is time synchronization, before the message is sent, the device supplies power to GPS, waits for GPS posi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G3/02
Inventor 郭长勇张键李辉辉张财元张相波鹿强
Owner TIANJIN 712 COMM & BROADCASTING CO LTD