The IBS (Integrated Bridge System) plays a vital role as a navigational aid.
Navigational safety is the common desire and the aim of all those who engage in marine transportation. However, despite the best efforts of everyone concerned, sea-going accidents continue to occur. A complex range of factors are involved in maritime accidents, but approximately 80 percent can be attributed to human error. The industry has been earnestly seeking the development of navigational aid equipment that can assume basic tasks and reduce the workload and the psychological pressure on the officer on watch.
The IBS (Integrated Bridge System) plays a vital role as a navigational aid. The electronic sea chart performs a central function within this system and is attracting a lot of attention.
Maintaining a constant watch of the ship\\’s surroundings is essential to insuring safety. However, the duties on the bridge include supervising such matters as navigational lookout, planning navigational routes, and handling communications as well as managing the ship\\’s engines, hull, and load while at the same time being on constant alert to avoid collisions or running aground. This is extremely stressful work. This situation has created an urgent need for developing a new bridge system that can rationally concentrate this necessary information for supervision. The concept of the IBS sprang from this need.
The IBS is composed of navigational equipment required for operating the ship, such as the GPS, gyrocompass, autopilot, radar, and electronic sea charts. The IBS integrates and processes information from throughout the bridge, and as such, interfacing with the various instruments and information processing technology is critical in IBS.
TOKYO KEIKI is the only manufacturer in Japan capable of developing and producing all of the major navigational equipment required for the ship\\’s operation, such as the gyrocompass, autopilot, radar, and electronic sea charts, and we are proud of our leadership in IBS know-how. We have developed an ergonomic design and layout to reduce mistakes caused by human error, and we are continually striving towards providing convenient, easy-to-use functions that contribute to reducing labor in ship operations.
- Celestial observation (the sun and the polar star)
- Magnetic compasses
- Electro-magnetic compasses
Of these, the primary instrument for locating directions is the gyrocompass. Each method has its own strengths and weaknesses, but the gyrocompass can be widely used in all types of vessels, from small boats to large ships.
The main features of the gyrocompass are:
- It correctly indicates the direction.
- It can serially output directional signals to other equipment.
- It can be placed anywhere.
- It is not affected by the ship’s magnetic compass or other disturbances.
TOKYO KEIKI Gyrocompasses
Since acquiring manufacturing rights for the gyrocompass from Sperry Company in 1918, we have been pioneers in supplying every type of gyrocompasses for almost 80 years. We have become world leader in the market and owe this to our dedication in achieving the highest standards of precision, reliability, price, and service in our products – fundamentals which still guide us.
TG Series: TG-8000
These gyrocompasses employ a technique where the gyrosphere is suspended in liquid oil by suspension wires (TOKYO KEIKI method). They are mainly used in large ships.
ES Series: ES-110
The TOKYO KEIKI method is typified in this series which has been a worldwide best seller and is a mainstay in small and medium size vessels.
GM Series: GM20
This series is a compact version of the ES Series, and is chiefly used in small vessels.
The gyrocompass applies the mutual effects of gravity, the earth’s rotation, and the characteristics of the ”gyroscope”. The gyroscope is a device that rotates at a fixed point on the periphery of a substance that has mass and occupies space. The image of a flywheel rotating at high speed is often used to explain this principle.
1.Directional maintenance: The gyro continuously rotates maintaining a fixed direction.
2.Precessional nature: Unlike normal objects, when force is applied to the rotational axis of a gyroscope, a revolving axis is created at right angles to the force. This revolving motion is called precession.
The directional maintenance exhibited by the gyroscope is in relation to the space of the universe, and to use it as a compass on earth it must have a ”north indication effec”. In other words, to make the gyro perpetually indicate north from anywhere on earth, one need only rotate the gyro in the same direction as the earth’s rotation at a rate equal to the earths rate of rotation (angular velocity) at that point. If you would like more technical information on how we apply the north indication effect (i.e. the ”TOKYO KEIKI method”) to our gyrocompasses, please contact us at TOKYO KEIKI.
The marine autopilot receives signals from directional sensors such as the gyrocompass and uses them to automatically control the helm for navigation.
The history of the TOKYO KEIKI marine autopilots dates back to 1925 with the development of the P1 single pilot and the P2 single pilot. Later TOKYO KEIKI integrated the gyrocompass into the autopilot unit(”GYLOT”) and also developed the ”Navigation Console” with radar and other navigational instruments all built in. The performance and reliability of these products obtained the overwhelming support of the marine market. Today, TOKYO KEIKI offers the following series of autopilots.
DOWNLOAD BROCHURE For medium to large vessels
DOWNLOAD BROCHURE For small to medium vessels
”GYLOT” is a registered trademark of TOKYO KEIKI.
- ECDIS works with Autopilot to build a Track Control System(TCS).
- Complies with latest IMO standards. MSC.232(82)
- STAND ALONE and UNIT type are available.
- In addition to the current Track Control System(TCS), Type approval for interface with new adaptive control (NCT) autopilot (HCS) is available.
- IMO/ MSC 74 Annex2 IEC62065 Category C.
- New 26 inch wide screen LCD display(EC-8600/EC-8600K) WUXGA 1920×1200 wide screen pixel support
- AIO display supportT&P Notice to Mariners
(T&PNMs:Temporary related notices) and AIO
(Admirality Information Overlay) can be displayed as supplimental information on the ENC chart
- INS conformity AMS response
Centralized management of all alerts from each Navigation Equipment(Alert Management System)
- Fast installation of ENC charts
(Install time reducted to 1/3)
- Possible to connect to VDR
- Easy software upgrade onboard by ship\\\\’s crew
Chart display, Ship position fixing, Target positioning measurement, Route planning, Route monitoring, 24 hours/3 months navigation record and play back, Navigation memo and No-go line/No-go area, Tracked target information display, AIS target information display, System self-diagnosis
The BR-3210/BR-2560 MARINE RADAR conforms with the latest International rules and regulations. In addition to superb user interface via the Operation Unit trackball and buttons, target detection performance and related functions have been improved. Also, a new high resolution easy-to-see 26 inch wide LCD display (for the BR-3210 series) has been introduced which enhances safe efficient navigation.
- Improved target detection performance
With the latest high-performance signal processing technology, small target detection during heavy weather has been improved.
- Enhanced target functions
TT is processed in the background and the corresponding vectors are displayed immediately after its acqusition.
(Maximum 100 targets）AIS（Active） maximum 500 targets.
- Outstanding operation
Basic operation is very simple using only the 2 inch trackball and button.Software keys for frequently used functions are arranged around the PPI.
- 26 inch wide LCD display WUXGA 1920×1200) for BR-3210
With the 2nd PPI window, short range and long range images can be displayed simultaneously.
Voyage Data (Wind direction/Wind speed，Tides etc.) can be shown by switching to a wide information window.
When an alert is activated, the probable cause and checkpoints are shown on the display.
- Complete RADAR lineup
S band Solid State RADAR has been added to the lineup.
2 unit / 3 unit, stand alone type Interswitch（Optional:4 Display Unit/8 Display Unit）
Display can be arranged as STAND type or UNIT type. UNIT type can be adjusted for the installation location.
A high-accuracy Log complying with the requirements of IMO.
Many signal output functions as standard and Easy installation.
The TD-310 Doppler Speed Log is designed in accordance with the requirements of IMO regulation and has high accuracy, many signals\\\\’ output functions such as ship\\\\’s speed and distance etc..
The size of units are reduced as small as possible (the display unit particularly is 1/14 in volume and 1/5 in mass compared to TD-501), and easy to install to ships such as coastal ships and ocean going ships.
The TD-310 adopts the paired-beam system in which the sonic energy is directed ahead and astern.This virtually minimizes doppler shift errors caused by the ship\\\\’s motions. Furthermore, by receiving the echoes selectively from about 3 m below the ship\\\\’s hull, the TD-310 minimizes adverse wake influences.
By virtue of its non-protruding, flush-mount design, the transducer of the TD-310 is completely free from the damage caused by drift ice or wood. Moreover, it need not be retracted before entering a port or extended after leaving it.
Total cumulative distance(DISTANCE 1) and distance since reset(DISTANCE 2) are memorized for each display unit.
Up to 3 Display units and 4 Analog meters can be connected.
Auxiliary output signals as standard
- Digital interface (IEC-61162-1 VBW,VLW) :8 circuits
- 200 pulses/mile contact signals:8 circuits
- Current signal (4-20 mA):1 circuit
- Voltage signal:1 circuit
Low cost and simplicity of installation
- All special cables are supplied by TOKYO KEIKI.
- Size of main units are reduced and as a result, system can be installed with ease and low cost.
Especially, the depth of the display unit is reduced to about 30 mm.
|Operating method||Ultrasonic paired-beam pulsed doppler system|
|Speed range||-10 knots to 30 knots|
|Speed display||3-digits numerical LED readout|
|Ahead/Astern indication||Ahead : green LED indication|
|Astern:red LED indication|
|Distance display||0.0 to 9999.9 nautical miles in LED|
|Distance 1 and distance 2 can be stored in non-volatile memory for each display unit|
|Accuracy||+/- 0.1 knot(speed) +/- 1%(distance)|
|Speed data output||IEC-61162-1 VBW sentence (8 circuits)|
|output period is variable between 0.5 and 9.9 sec.|
|Current signal (1 circuit)|
|4 mA = – 5 knots, 20mA=+25 knots|
|Voltage signal (1 circuit)|
|-3.2 V = -10 knots, 9.6 V =+30 knots|
|Distance data output||IEC-61162-1 VLW sentence(8 circuits)|
|output period is variable between 0.5 and 9.9 sec.|
|200 pulses/mile contact signals (8 circuits)|
|pulse width = 100ms (75ms-125ms)|
|Operating depth||3m(2m-5m variable)|
|Power supply||AC 100/110/115/220 V 50/60 Hz|
|Power consumption||Less than 50 VA|
|Operating temperature||-15 – 55 (Celsius)|
|Others||Self check function, Analog meter connection, Sea water temperature automatic correction, Transducer mounting error correction|
Compliance with IMO, ISO449 and JlS F9101 (Class A), also with \”Wheel Marking\”
The SH-Type of Projection Magnetic Compass has been designed and manufactured in accordance with JIS F9101, ISO 449 and complies with IMO requirements. It provides excellent accuracy and steady performance capabilities for a long period of time.
The latest Automatic Steering Function (ACE: Advanced Control for Ecology) is now available for integration to existing PR-6000 Autopilots!
Straight Leg Course Control (ACE) is
a new Course Control function (ACE: Advanced Control for Ecology) that automatically creates a route on the heading between the ship\\\\’s current position and destination, calculates outside desturbances (tides), and implements the best rudder control making it possible for the vessel to sail the most efficient route.
Compared to normal automatic steering (Heading Control),
Less route deviation
Shorter sailing distance
Reduction in the use of Rudder
Minimized burden on the Helmsman
contribute to a safe and more efficient voyage.
Characteristics of Straight Leg Course Control function (ACE)
- Reduction in Fuel consumption (about 1～2% reduction)
- Route deviation is reduced allowing the vessel to sail the shortest distance to the
destination without influence from tides etc, and the safety of the voyage is improved.
- Reduction in course changes decreases the amount of Rudder used lessening the burden
on the Helmsman.
- Operates the same as normal Heading Control, it is easy to use and worry free.
Easy changeover between Heading Control and ACE can be done by the push of a single button.
- Installation is easy due to the location and direct connection to GPS and Speedlog.
(For details please contact TOKYO KEIKI Sales and or Service Department.)
Actual test result (example)
Test area: Route between Japan and Australia
Test conditions: Beauford Scale 1～5/Tide:0.2～3kn
Test vessel: Bulk Carrier (length 190m/weight 31,482 GRT)
1.5% reduction in fuel consumption
(1.5% energy saving)
Route deviation distance is reduced
contributing to safe navigation
Vessel does not deviate from the course,
less course changes
Burden on the Helmsman is reduced,
decrease in vessel speed due to rudder
changes is suppressed.
- Conventional recording paper is no longer needed
Since recorder paper and course pens are no longer used, there is no need to refill or replace consumable items making it possible to reduce running costs.
- Hand written input
Just like using a traditional paper type Course Recorder, it is possible to write information via the use of a touch pen. Additionally, port call and arrival/departure information etc can be set (memory) in advance, and easy recording can be performed when the information is selected.
- Recording of detailed voyage information
In addition to the usual recording function for ship\’s heading/rudder angle, at the same time more information like set course/rudder order/ course over ground etc can now be displayed and recorded at the same time. From own ship\’s drift conditions and rudder feedback conditions etc, detailed voyage infomation can be used to select the most suitable steering mode, adjust the steering parameter, and confirm the operation of the navigation equipment.
- Easy Information management and recording
Easy to transfer data to a PC using USB memory or CF card. When using the software included, it is possible for data to be viewed or printed with the PC. Also, it is easy to search for memos or events, and manage voyage data.
- Easy to retrofit
Dimensions are the same as the existing Course Recorder. When necessary, a signal converter is installed inside the unit which eliminates the need to change existing wiring making it possible for retrofit of the Course Recorder unit only.
Numerical information screen
Time stamp and hand written notes
|Main power||DC24V MAX 15VA|
|Recording media||CF card 4GB standard, 8GB Optional
(USB memory is not included.)
|Display||10.4 inch TFT Color LCD
VGA（640×480） Touch screen
|Communication specification||3x RS422 serial signal input ports,
International Standard IEC61162 compliant
※May differ according to specification.
|Heading, actual rudder angle, rudder order,
course over ground, speed over ground, latitude, longitude，
rate of turn, steering mode, time stamp etc.