AIS (Automatic Identification System) dual-mode communication method and terminal for ship

A technology of automatic identification and automatic identification system of ships, applied in the field of mobile communication, can solve the problems of inability to meet the safety supervision of ships and shipping companies, production scheduling and information exchange, slow transmission rate of TDMA standard, short transmission distance, etc. Effects of navigational safety and production needs

Inactive Publication Date: 2012-04-25
CHONGQING ANHANG TECH DEV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Problems existing in the existing technology. AIS terminals on the market basically use a single TDMA system for communication. Due to the slow transmission rate, limited amount of transmitted information and short transmission distance of the TDMA system, it cannot meet the safety supervision and production requirements of ships and shipping companies. Scheduling and Information Interaction Requirements

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  • AIS (Automatic Identification System) dual-mode communication method and terminal for ship
  • AIS (Automatic Identification System) dual-mode communication method and terminal for ship
  • AIS (Automatic Identification System) dual-mode communication method and terminal for ship

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Embodiment Construction

[0029] The flowchart of the AIS dual-mode communication method of a preferred embodiment of the present invention can be found in figure 1 , including the following steps,

[0030] Step 101, the control module of the first AIS (Automatic identification System, automatic identification system) terminal transmits AIS data to the TDMA module and the CDMA module of the first AIS terminal,

[0031] Step 102, the TDMA module and the CDMA module of the first AIS terminal send AIS data,

[0032] Step 103, the TDMA module of the second AIS terminal receives the AIS data,

[0033] Step 104, the TDMA module of the second AIS terminal transmits the AIS data to the control module of the second AIS terminal.

[0034] The flowchart of the AIS dual-mode communication method of another preferred embodiment of the present invention can be found in figure 2 , including the following steps,

[0035] Step 100, the control module of the first AIS terminal drives the display module of the first...

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Abstract

The invention discloses an AIS (Automatic Identification System) dual-mode communication method and an AIS dual-mode communication terminals for ships and aims at the defect that the existing AIS terminal cannot meet the requirement on ships and shipping company safety supervision, production scheduling and information interaction. The AIS dual-mode communication method comprises the following steps that: a control module of a first AIS terminal transmits AIS data to a TDMA (Time Division Multiple Address) module and a CDMA (Code Division Multiple Access) module of the first AIS terminal; the TDMA module and the CDMA module of the first AIS terminal send the AIS data; and a TDMA module of a second AIS terminal receives the AIS data and transmits the AIS data to a control module of the second AIS terminal. According to the AIS dual-mode communication method and the AIS dual-mode communication terminals, the requirement on information interaction can be effectively met and the construction of a complete inland river navigation comprehensive information service platform has the technical effect of a communication network foundation.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a dual-mode communication method and terminal of an automatic identification system (AIS) for ships. Background technique [0002] In the existing technology, the main technical feature of AIS is that it adopts the working mode of Open System Interconnection (OSI), which can work autonomously and continuously in all areas; the working mode is configured by the AIS base station, which can adopt broadcast mode or controlled mode for data transfer. The AIS terminal transmits the basic information of the ship, and the base station and the terminal transmit the traffic management information and other ship information; the mutual wireless communication system is SOTDMA / CSTDMA, the frequency is 161.975MHz and 162.025MHz, and the transmission bandwidth is 25KHz; the modulation method is GMSK; the transmission rate is 9600b / s. [0003] Problems existing in the existing technology....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W88/06
Inventor 刘大友
Owner CHONGQING ANHANG TECH DEV
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