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AIS signal simulation source

A technology of system signals and simulation sources, applied in transmission systems, transmission monitoring, electrical components, etc., can solve problems such as delaying development time, and achieve the effect of saving development time, financial resources and material resources

Inactive Publication Date: 2014-08-27
CHENGDUSCEON TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of test not only consumes a lot of material and financial resources to purchase equipment, but also spends a lot of financial and material resources on environment construction, debugging, disassembly, and transportation. Any problem in any link will affect the test effect and greatly delay the development. time

Method used

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  • AIS signal simulation source

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] like figure 1 As shown, the present invention includes a power supply, a combiner, a VHF antenna, an AIS signal source, at least one baseband processing unit, at least one radio frequency unit, the AIS signal source is connected to the baseband processing unit, the baseband processing unit is connected to the radio frequency unit, and the radio frequency unit is connected to the combined The combiner is connected to the VHF antenna, and the AIS signal source, baseband unit, and radio frequency unit are all connected to the power supply.

[0041] This embodiment includes two baseband processing units and two radio frequency units. The operating frequency of the radio frequency unit is 156-163MHZ, which can be set by the user according to the needs. The commonly used two transmission frequencies are 161.975 MHZ and 162.025 MHZ. During use, the operating frequency of the radio frequency unit can be set to 161.975 MHZ and 162.025 MHZ respectively. Users can also choose to ...

Embodiment 2

[0050] In order to improve the AIS system signal simulation source emission signal generation capability and emission capability, this embodiment is further improved on the basis of Embodiment 1, as figure 1 As shown, the radio frequency unit of this embodiment includes a VHF transmitter and a program-controlled attenuator, the baseband unit is connected to the input terminal of the VHF transmitter, the output terminal of the VHF transmitter is connected to the input terminal of the program-controlled attenuator, and the output terminal of the program-controlled attenuator is connected to the combiner device.

[0051] In this embodiment, the radio frequency unit adopts a technical scheme in which the program-controlled attenuator and the VHF transmitter are separately designed and cooperate with each other. The baseband unit transmits the baseband signal to the VHF transmitter, and the VHF transmitter performs filtering, power amplification, and frequency synthesis on the baseb...

Embodiment 3

[0054] In order to improve the positioning and timing capabilities of the AIS system signal simulation source, this embodiment is further improved on the basis of any one of Embodiments 1-2, as figure 1 As shown, the AIS system signal simulation source of this embodiment also includes a GPS module and a GPS antenna, the GPS antenna is connected to the GPS module, and the GPS module is connected to the baseband processing unit.

[0055] In this embodiment, the GPS antenna is connected to the GPS module, and the GPS module is connected to the GPS satellite signal receiving function of the baseband processing unit. The GPS antenna transmits the GPS satellite signal received from the GPS satellite to the GPS module, and the GPS module carries out the GPS satellite signal. After calculation and processing, the data format of NMEA0183 is adopted and transmitted to the baseband processing unit.

[0056] The models and specifications of the GPS module and the GPS antenna in the presen...

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PUM

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Abstract

The invention discloses an AIS signal simulation source comprising a power supply, a combiner, a VHF antenna, an AIS signal source, at least one baseband processing unit and at least one radio frequency unit, wherein the AIS signal source is connected with the baseband processing unit, the baseband processing unit is connected with the radio frequency unit, the radio frequency unit is connected with the combiner, the combiner is connected with the VHF antenna, and the AIS signal source, the baseband processing unit and the radio frequency unit are connected with the power supply. The requirements of users on different messages sent by different types of devices in different scenarios can be met, the development time is saved, and financial and material resources are saved.

Description

technical field [0001] The invention relates to the technical field of automatic identification systems, in particular to an AIS system signal simulation source. Background technique [0002] The Automatic Identification System (AIS system for short) is developed by international organizations such as the International Maritime Organization (IMO), the International Association of Aids to Navigation (IALA), and the International Telecommunication Union (ITU). A new type of digital navigation aid system and equipment jointly researched that integrates network technology, modern communication technology, computer technology, and electronic information display technology. [0003] The ship automatic identification system (AIS) is based on the radio transponder monitoring technology, and cooperates with the GPS global positioning system to combine the ship's position, ship speed, course change rate and course dynamics with the ship's name, call sign, draft and dangerous goods. S...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/00
Inventor 谢永锋魏璨印梦超周密李旭刘玉
Owner CHENGDUSCEON TECH
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