KONGSBERG AIS BS600 shipborne automatic identification system base station

Detailed explanation of technical specifications

1. RF module

Parameter specifications

VHF transmission power of 12.5 W or 1 W (remote switchable)

Receiving sensitivity better than -115 dBm

Channel bandwidth 25 kHz

Operating frequency range 156.025-162.025 MHz

Default AIS channels CH 87B (161.975 MHz)/CH 88B (162.025 MHz)

Access Protocol FATDMA

The base station is equipped with three remotely configurable receiving channels, which are used for receiving TDMA and DSC signals respectively, ensuring synchronous processing of AIS data and digital selective call signals.

2. GNSS module

The device is equipped with a 50 channel GNSS receiver, which provides high-precision positioning and timing information for the base station itself. Accurate time synchronization is the foundation for the normal operation of the TDMA protocol in AIS systems, and the GNSS module ensures the accuracy of time synchronization between the base station and the ship's AIS equipment.

3. Power supply and power consumption

Input voltage: 100-240 V AC, 50-60 Hz, suitable for global power grid standards

Average power consumption: 30 W

Peak power consumption: 55 W

Low power design enables devices to operate stably even under limited power supply conditions, reducing operating costs.

4. Environmental adaptability

Component operating temperature range

AIS host unit -15 ℃ to+55 ℃

GNSS antenna -50 ℃ to+70 ℃

VHF antenna -55 ℃ to+70 ℃

The host unit can withstand up to 95% relative humidity (non condensing), and the GNSS antenna and VHF antenna have fully sealed protection capabilities, which can work under 100% humidity conditions and adapt to harsh coastal environments with high salt spray and high humidity.

5. Size and weight

Component dimensions (width x height x depth) and weight

AIS host unit 485 mm × 89 mm × 345 mm (2U) 5.2 kg

GNSS antenna 230 mm x 33 mm (diameter x height) 0.15 kg

VHF antenna 1250 mm (length) 1.0 kg

6. Compliance certification

AIS BS600 strictly follows the following international standards:

Electrical safety: EN 60950-1

Electromagnetic compatibility: EN 60945/EN 61000-6-3/EN 61000-6-2

Electrical interface: IEC 61162-1/IEC 61162-2

Base station operation: IEC 62320-1

Radio performance: IEC 61993-2 (Clause 15)

Message protocol: ITU-R M.1371-5

IALA recommendation: A-124

The average time between failures in equipment design exceeds 100000 hours, reflecting strict requirements for long-term operational reliability.

Function expansion and auxiliary equipment

1. IALA correction receiver

The AIS BS600 can be equipped with a built-in IALA correction receiver, which can directly receive differential GNSS correction signals from IALA beacons, further enhancing the real-time and accuracy of broadcast correction information.

2. Virtual navigation mark function

The base station supports some functions according to the IEC 62320-2 standard and can transmit virtual navigation mark messages. By sending virtual navigation mark information through AIS messages, it is possible to quickly mark special water areas such as temporary danger zones, construction zones, and sunken ship locations without the need for physical navigation marks, reducing maintenance costs.

3. AIS relay function

The relay function that complies with the IEC 62320-3 standard enables the AIS BS600 to forward AIS data in specific scenarios, expanding network coverage or filling signal blind spots.

4. Auxiliary equipment

Kongsberg Seatex provides a range of supporting equipment to enhance the deployment flexibility and functional integrity of base stations:

Independent or combined transmitting and receiving antennas: Select separate or combined antenna configurations based on site conditions

Remote hard reset controller: realizes remote power reset of base station equipment across the shore, reducing on-site maintenance requirements

Differential GNSS reference and monitoring stations: providing high-precision reference sources and quality monitoring for differential correction services

Deployment and Application Scenarios

1. Coastal AIS network

AIS BS600 is an ideal choice for building national or regional coastal AIS networks. With its high sensitivity receiving capability, it can achieve wider ship coverage, reduce the number of base stations, and simplify network topology under the same transmission power conditions. The built-in storage function allows the base station to serve as a data acquisition node, temporarily storing AIS data in case of communication link interruption, and transmitting it again after the link is restored to ensure data integrity.

2. Ship traffic services

At the Ship Traffic Service Center, AIS BS600 provides real-time and reliable ship dynamic information for VTS operators. The base station supports AIS message filtering function, which can filter high priority data according to preset rules, reducing the processing burden of the center. The differential correction broadcast function can improve the positioning accuracy of ships within the VTS coverage area and optimize the efficiency of channel utilization.

3. Port and Terminal Operations

Deploying AIS BS600 in port areas can achieve continuous monitoring of incoming and outgoing ships, assisting berth scheduling and pilotage operations. The base station can be integrated with the port management system through Ethernet interface to achieve data sharing and business process linkage.