Furuno BR-2000 Bedienungsanleitung

BRIDGE ALARM MONITORING

& WATCH SAFETY SYSTEM

BR-2000

Contents

1 INTRODUCTION....................................................................................3

2 ALARM MONITORING SYSTEM (AMS)...............................................4

2.1 Multipurpose Screen.........................................................................4

2.1.1 Conning page................................................................................4

2.1.2 Alarm page....................................................................................6

2.1.3 Function page ...............................................................................7

2.2 Alarms................................................................................................9

2.2.1 General .........................................................................................9

2.2.2 Alarm categories.........................................................................10

2.2.2.1 Group alarms ...........................................................................10

2.2.2.2 Detailed alarms ........................................................................10

2.2.3 Alarm types.................................................................................10

2.2.3.1 Event alarm..............................................................................10

2.2.3.2 State alarm...............................................................................10

2.3 Alarm / Conning control panel ....................................................... 11

3 WATCH SAFETY SYSTEM (WSS)......................................................12

3.1 Description of system's function...................................................12

3.2 Timer Control panel ........................................................................13

3.3 Bridge Control panel.......................................................................13

3.4 Cabin Control panel ........................................................................15

3.5 Remote reset push button..............................................................15

4 FLOW CHART OF AMWSS.................................................................16

1.INTRODUCTION

Alarm Monitoring and Watch Safety System (AMWSS) is intended to centralize all bridge and other

important alarms to one position on the bridge and to monitor watchkeepers activity as well as to ensure

his well-being.

The system operation is divided in two independent Programmable Logic Computer (PLC) systems, one

taking care of Alarm Monitoring and the second one to take care of Watch Safety System. The PLC for

Watch Safety System is also generating an independent "Off course" monitoring, "Gyro mismatch" and

"Magnetic compass compare" functions.

Both systems are described in the drawing below.

Fig. 1 Block Diagram

2. ALARM MONITORING SYSTEM (AMS)

The basic feature of alarm monitoring PLC is to collect all bridge and other important alarms and display

them on the multipurpose screen. When the full redundancy and greater flexibility of display is required

then two independent computers and screens are optionally installed.

2.1 Conning/Alarm Display

Two multipurpose screens are used to display either the conning information or the alarm information.

Conning and the alarm displays are processed in "Display Control Computers".

In some cases depending on redundancy requirements the other multipurpose screen can be replaced

by an other integrated system's screen equipped with change-over switch - e.g. ECDIS-screen.

2.1.1 Conning page

Conning pages can be configured up to two different pages (i.e. main and harbour conning). Conning

pages are selected on Conning Display Control panel.

The conning information is mainly received from following external systems:

- ECDIS processor waypoint information

- Track pilot heading order, steering mode and Off-Track information*

- Autopilot heading order and steering mode information*

- Gyrocompasses Heading information*

- Magnetic Compass with TMC Heading information*

- Heading Change-over selected heading and status information*

- Rate Of Turn information

- Rudder Angle Indication

- Propulsion information

- Thruster Pitch Information

- Echo Sounder Depth and Set Limit information**

- Wind Indicator Speed and Bearing information**

- Dual-axis Speed Log information**

- Machinery information from DCS

*: Information applied through the Watch Safety Electronic unit.

**: Information applied through the ECDIS.

The latest five "non-acknowledged" alarms are displayed in the lower right corner of the display.

The following Watch Safety information is displayed in the lower left corner of the display.

- Bridge Watch set condition; “Enable” or “Disable”

- Back-up navigator selection

- Timer bar indication

Examples of Main Conning and Harbour Conning pages are shown in figures on next page.

Fig. 2 Main Conning Page

Fig. 3 Harbour Conning Page

2.1.2 Alarm page

Three alarm pages are available as below.

1) Navigation Alarm page:

It consists of four windows indicating navigation related alarm. (See Fig. 4)

a) Navigation Safety: Navigation alarms requiring great attention for safety.

b) Navigation Equipment: Navigation sensor system alarms.

c) GMDSS alarms: It alerts when any distress call received.

d) ECDIS alarms: Actual ECDIS alarms. Important alarms are transferred to the Navigation

Safety and Navigation Equipment windows for navigator’s attention; e.g. Waypoint Approach,

Off-track, Depth below limit, Position unreliable, No speed available, No course available.

2) External Alarm:

It consists of several windows indicating external alarms (Engine, Cargo, Steering Gears, General

Alarms, etc.), which are applied from Machinery/Cargo DCS. (See Fig. 5)

3) Local Alarm:

This page is prepared for the navigation equipments, which have no own visual display. (Track pilot,

Autopilot) The alarms generated in the AMWSS itself are also displayed on this page. (See Fig.6.)

Alarms are displayed and processed in different priorities for the identification of alarm importance.

Priorities are as followings:

- Emergency alarms - alarms which indicate that immediate danger to human life, or to the ship

and its machinery exists and that immediate action must be taken.

- Distress, urgency and safety alarms - alarms, which indicate that a caller is in distress or has

an urgent message to transmit.

- Primary alarms - alarms, which indicate a condition that requires, prompt attention to prevent an

emergency condition.

- Secondary alarms - all other alarms.

Each alarm is associated with coloured marker showing into which priority the alarm belongs.

- Emergency alarms – red marker

- Distress, urgency and safety alarms –yellow marker

- Primary alarms –white marker surrounded by red stripe

- Secondary alarms – red marker surrounded by white stripe

The latest five active alarms are displayed in the alarm list in the lower right corner of the display. The

rest of the active alarms are displayed on alarm pages. Alarms in the active alarm list are shown in

order of priority and occurrence.

Non-acknowledged alarms are indicated with a flashing red text and marker and buzzer.

Acknowledged but pending alarms are distinguished from other alarms by steady non-flashing yellow

alarm text on alarm page.

Yellow text below alarm list e.g. Pending navigation alarm, means that there is at least one pending

alarm on alarm page.

Fig. 4 Navigation Alarm

Fig. 5 External

Alarm

Fig. 6 Local Alarm

2.1.3 Function page

Function page is used to set some operation and installation parameters.

- Alarm History

- Selection of Back-up navigator*

- Installation parameters**

- Selection of over-head panel display presentation (optional feature)

*: not accessible to other persons than captain or other authorized person.

See the leaflet “HOW TO SELECT BACK-UP NAVIGATOR”.

**: not accessible to other persons than service engineers.

See the leaflet “INSTALLATION PARAMETER SETTING”

How to print out the History Alarm:

1）Press the FUNC SET key. A menu window will appear on the

screen. The menu contains a cursor (blue triangle) and three items.

2）Move the cursor to the “Alarm History” position with the MOVE

UP and MOVE DOWN keys, and press the ENTER–key. The printer,

connected to the display control computer print a alarm log table.

3）Press the FUNC SET button again. The menu window is closed.

2.2Alarms

2.2.1 General

In the practice, the general rule for integration of different bridge equipment is that any equipment, which

can sound or indicate any alarm on the bridge, is to be included in the Alarm Monitoring system.

Following navigation equipment is to be integrated in the Alarm Monitoring system:

- ARPA radars (CPA/TCPA alarm)

- ECDIS

- Track Control System and Heading Control system

- Steering system and steering gear

- Position Fixing equipment

- Echo sounder

- Speed log

- Navigation light controls

- Bridge power supply and distribution box

- Watch safety system

Other bridge equipment or systems, which can be included in the AMS:

- Propulsion system

- Engine automation

- GMDSS and Navtex

- Fire detection

- Cargo monitoring alarms

- Water tight doors

- Hospital call etc.

Following alarms are to be included in the centralized Alarm Monitoring System:

- CPA/TCPA

- Shallow depth (Depth below limit)

- Waypoint approach

- Off course

- Off track

- Steering alarms

- Navigation light failure

- Gyro compass failure

- Rate Of Turn indicator failure

- Watch safety failure

- Failure of any power supply to the distribution panels

- Position fix in accurate

- Lost of heading input

- Lost of log input

- System failure

- Gyro mismatch

2.2.2 Alarm categories

2.2.2.1 Group alarms

Alarms are arranged in groups, in order to reduce the quantity of information presented to the operator.

Such alarm groups can be e.g. fire, watertight doors, and bilge water etc alarms. Group alarm can be

assigned to any priority.

The following alarms are not to be grouped:

- Emergency alarms

- Alarms associated with faults requiring speed or power reduction or the automatic shutdown of

propulsion machinery

- Steering gear alarms

2.2.2.2 Detailed alarms

There is a common rule for understanding when there is a need for more detailed information of

individual alarm from the external system. That is that when the situation may lead to a danger for the

ship or human life, reduction of speed or maneuverability, more information of alarm is to be available.

2.2.3 Alarm types

2.2.3.1 Event alarm

- Event alarm is an alarm, which is normally used only to alert operator, but does not require any

alarm acknowledgement.

- This type of alarm may activate sound alarm in the external system, or may be only a visual

alarm indication.

- Alarm indication in the external system will disappear by itself.

- AMS has the option (programmed inside AMS) to release the alarm buzzer in AMS.

2.2.3.2 State alarm

- State alarm is an alarm, which normally requires operator’s acknowledgement.

- Sound alarm is normally released in the external equipment.

- Sound alarm of external equipment can be acknowledged at AMS provided there is a two-way

alarm acknowledge handshake between external system and AMS.

- AMS will release the alarm and transmits acknowledgement of this alarm, if acknowledged in

AMS.

- External system should remove local sound alarm.

- Acknowledge from AMS should not remove the state of the alarm in the external system, as long

the alarm condition persists.

- AMS will display pending alarm as long as the alarm condition persists in external system.

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