KONGSBERG DPS 114 Durable and Reliable DGNSS (DGPS/DGGLONASS) Sensor

KONGSBERG DPS 114 Durable and Reliable DGNSS (DGPS/DGGLONASS) Sensor

Product positioning and DPS family

DPS 114 is a cost-effective differential global navigation satellite system (DGNSS) sensor designed specifically for users with high requirements for availability and reliability. It provides meter level standard positioning accuracy and can achieve global decimeter level accuracy through Fugro Seastar G4 service.

The DPS product series is developed by Kongsberg Seatex and has been widely validated to be suitable for all applications that require reliable positioning solutions in safety critical environments. As the entry-level to mid-range model of the series, DPS 114 balances cost and performance, making it an ideal choice for workboats, platform support ships, and various offshore operations.

GNSS infrastructure and multi constellation support

Full constellation reception capability

DPS 114 has a built-in multi frequency and multi constellation receiver, and supports:

GPS (Global Positioning System)

GLONASS (Russian Global Navigation Satellite System)

Galileo (European Union Galileo System)

Beidou (China Beidou System)

Compared to receivers that only support single or dual constellations, full constellation reception significantly increases the number of visible satellites, especially in areas with signal obstruction such as canyons, ports, or near offshore facilities, greatly enhancing the availability and continuity of positioning.

Multi frequency technology

By receiving signals from multiple frequencies, DPS 114 can effectively eliminate ionospheric delay errors, improve positioning accuracy and convergence speed, laying the foundation for subsequent precision single point positioning (PPP) technology.

Differential correction service

DPS 114 supports multiple differential correction sources, which can be flexibly selected according to the work area and accuracy requirements.

Star based enhancement system

Built in SBAS receiving capability, free use of regional satellite based enhancement services:

WAAS (North American Wide Area Augmentation System)

EGNOS (European Geostationary Navigation Overlay Service)

GAGAN (Indian GPS assisted geostationary orbit enhanced navigation system)

MSAS (Japan Multi functional Satellite Augmentation System)

SBAS services can provide horizontal accuracy of better than 1 meter (95% confidence interval), meeting most conventional navigation needs.

Differential foundation system

Supports receiving differential correction signals from IALA DGPS beacon stations, suitable for operations in coastal and port areas. Built in IALA beacon receiver, no additional equipment required.

Fugro Seastar G4 Service

A major highlight of DPS 114 is its built-in L-band receiver, which enables Fugro Seastar G4 service. Seastar G4 is a global precision single point positioning service provided by Fugro, featuring:

Global coverage: Broadcast through Fugro's proprietary dual system reference station network, without the need for local reference stations.

Meter level accuracy: The typical horizontal accuracy can reach 10 centimeters (95% confidence interval).

Orbit and clock correction: Provides precise orbit and clock correction for GPS and GLONASS, achieving fast convergence and high-precision positioning.

Optional RTCM input

In addition, DPS 114 also supports differential correction of RTCM SC-104 format through serial port input (versions 2.2, 2.3), which can be connected to local reference stations or third-party differential services.

Hardware Design and Interface

Built in human-machine interface

The DPS 114 unit is equipped with an embedded keyboard and display screen, allowing users to directly configure, monitor, and diagnose the system on the device without the need to connect to an external computer. This is extremely convenient for quick on-site debugging and troubleshooting.

External display unit (optional)

For scenarios that require a more intuitive interface, such as DP operations, DPS display units can be optionally selected. This unit adopts a graphical interface optimized for DP operation, which can clearly display satellite status, position quality, calibration source and other information. It is suitable for installation on the driver's cab or DP operation console.

Rich communication interfaces

Serial ports: 3 RS-232/422 (including 2 NMEA outputs and 1 RTCM input), supporting electrical isolation and adapting to the electrical environment of ships.

Ethernet/LAN: 1, supporting networked data output and remote management.

USB ports: 3, used for easy software upgrades and data exports.

Antenna configuration

The system comes standard with three types of antennas, each designed for different signals:

GNSS antenna: receives GPS/GLONASS/Galileo/Beidou signals.

IALA antenna: receives differential beacon signals.

Spotbeam antenna: receives L-band Seastar G4 calibration signal.

All antennas adopt a sealed design to adapt to harsh marine environments.

Technical Specifications

performance parameters

Parameter values

Seastar G4 service accuracy of 10 cm, 95% CEP

DGPS/DGGLONASS accuracy<1 m, 95% CEP

SBAS accuracy<1 m, 95% CEP

Speed accuracy<0.05 m/s, 95% CEP

Output rate 1 Hz

Interface details

Serial ports: 3, RS-232 or RS-422 (isolated)

Ethernet: 1

USB: 3

data format

NMEA 0183 v3.0：GGA、GLL、GSA、GST、GSV、VER、VTG、ZDA

SNMP v2.0: Used for network management alarm status

RTCM input: SC-104 v2.2, 2.3, Seastar XP2/G4

Power Specifications

Component power consumption

DPS 114 host 100-240V AC 50/60 Hz, maximum 60W

GNSS antenna 5V DC (powered by the host)-

IALA antenna 10.2V DC (powered by the host)-

Spotbeam antenna 12V DC (powered by the host)-

Environmental specifications

Parameter conditions

Working temperature (host)+5 ° C to+40 ° C (recommended)

Sealed design for working temperature (antenna) to adapt to a wider range

Humidity (host) up to 95% without condensation

Antenna protection with airtight sealing

Mechanical vibration complies with IEC 60945/EN 60945

Electromagnetic compatibility complies with EMCD, IEC 60945/EN 60945

The product safety complies with LVD, IEC 61010-1/EN 61010-1

Weight and Dimensions

Component weight and dimensions (width/diameter x height x depth)

DPS 114 host 5.8 kg 89 x 444 x 357 mm

GNSS antenna 0.5 kg 69 x 185 mm

IALA antenna 0.78 kg 870 mm high

Spotbeam antenna 1.4 kg 96 x 150 mm

Application scenarios

Dynamic Positioning (DP) Assignment

For DP 1/2 class vessels, DPS 114 can serve as one of the main positioning sensors, providing meter or decimeter level position references. In conjunction with Seastar G4 services, high precision can be maintained even in deep waters far from the coast, supporting precise dynamic positioning of drilling vessels, pipeline laying vessels, and platform support vessels.

Offshore Engineering and Investigation

In underwater pipeline surveys, underwater robot (ROV) positioning, and dredging operations, sub meter level position accuracy can significantly improve work efficiency and data quality. The multi constellation capability of DPS 114 remains reliable under bridges or near platforms.

Ship Navigation

As a standard navigation sensor, DPS 114 provides precise latitude, longitude, heading, and speed information for ECDIS, radar, and autopilot. SBAS calibration is provided for free, reducing operating costs.

Ports and waterways

The IALA beacon receiving capability enables reliable differential correction in major ports and waterways worldwide, ensuring safe entry and exit of ships.

Buoys and offshore facilities

In long-term unmanned situations, the stability and remote management capability (SNMP) of DPS 114 facilitate integration into monitoring systems to report location and health status in real-time.

Summary of Product Advantages

Full constellation and frequency range: GPS+GLONASS+Galileo+Beidou, covering all major satellite systems to improve availability and anti-interference capability.

Multi source differential compatibility: SBAS free, IALA beacon, Seastar G4 paid service, RTCM input, users can flexibly choose according to accuracy requirements and budget.

Seastar G4 decimeter level accuracy: global coverage, no need for local reference stations, suitable for offshore operations.

Built in display and keyboard: can be configured and monitored without an external computer, simplifying on-site debugging.

Rich interfaces: serial port, Ethernet, USB to meet various system integration requirements.

Optional DP dedicated display unit: provides an intuitive interface for DP operators to enhance the operating experience.

Durable and reliable: Compliant with IEC 60945 marine standard, suitable for harsh environments such as vibration, humidity, electromagnetic interference, etc.

Easy to upgrade: Easily update software through USB to keep the device up-to-date.

Collaboration with other DPS family products

DPS 114 is the base to mid-range model in the DPS series. For users who require higher precision or redundant configurations, Kongsberg also offers:

DPS 120: Higher performance, supporting more calibration services.

DPS 200: Integrated inertial navigation system (INS) integrated navigation sensor, providing attitude and position outputs.

DPS 114 can be mixed with these products in the same system to meet the requirements of different precision and redundancy levels.