Rangeguard Operators Guide Issue Date: 21/04/2015 Document No: 94-0447-4-A Serial No:
Sensor Software Version:
Software Version:
Date of Shipment from UK:
Guidance Marine Ltd, 4 Dominus Way Meridian Business Park Leicester LE19 1RP UK Tel: +44 116 229 2600 Tel (Customer Services): +44 116 229 2665 Fax: +44 116 229 2604 Email: customerservices@guidance.eu.com Web: www.guidance.eu.com www.marine.direct Copyright 2015 Guidance Marine Limited. All Rights Reserved. Copyright in the whole and every part of this document belongs to Guidance Marine Limited (the Owner) and may not be used, sold, transferred, copied or reproduced in whole or in part in any manner or form or in or on any media to any person other than in accordance with the terms of the Owners Agreement or otherwise without the prior written consent of the Owner.Windows is a trademark of Microsoft Corporation. All other brand or product names are trademarks or registered trademarks of their respective companies or organisations. 0191 Document History Document Number 94-0447-4-A Changes First Release of Rangeguard Operators Guide Issue Date 21/04/2015 l 3 Table of Contents Introduction System Overview ......................................................................................................6 Getting Started Start Up and Shut Down ..........................................................................................8 Start Up.............................................................................................................................................. 8 Shut Down ......................................................................................................................................... 8 Screen Layout ..........................................................................................................9 Table View ....................................................................................................................................... 10 Display Options ......................................................................................................12 Selecting/Deselecting Sensors ..............................................................................13 Measurement Algorithms Selection of Measurement Algorithm .....................................................................15 Setting the Range Limits ........................................................................................16 Closest Algorithm ...................................................................................................17 Manual Threshold Algorithm ..................................................................................18 Max Peak Algorithm ...............................................................................................19 Peak Lock Algorithm ..............................................................................................20 Appendices System Specifications ............................................................................................22 FCC Warning Statement ........................................................................................23 Index .......................................................................................................................24 l 4 Introduction Welcome to the RangeGuard Operators Guide. It explains how to use the RangeGuard system once it has been fully installed. For instructions on how to install RangeGuard onto a vessel, refer to 94-0448-4 RangeGuard Installers Guide. The System Overview on page 6 describes the different components of the system and how they work together. The Getting Started section on page 8 explains how to get the system up and running and how to shut it down again. It also details what you will see on the RangeGuard Display screen when the system is running, and how to interpret the information. The Measurement Algorithms section on page 14 describes the different ways that RangeGuard can measure the distance to an object. Further useful information is included in the Appendices section on page 21. l 5 System Overview The RangeGuard system provides object detection and distance measurements using continuous wave radar sensors. These operate on a licence-exempt Short Range Device basis at 24.15GHz. The system comprises a control box, up to four sensors and a graphical user interface which can be accessed from any device connected to the same network. The sensors are typically positioned around the outside of a vessel and connected to the control box via standard Cat5e Ethernet cable up to a maximum length of 100m; longer cables can be made using cable with additional cores. The sensors have a fixed elevation beam width of 11 (+/-5.5) and two options of azimuth beam: 11 (Narrow Beam) and 90 (Wide Beam). Each sensor measures the range to the nearest obstacle by default or to a selected obstacle if preferred. RangeGuard Display - the user interface - is run from a web browser. It is recommended that either the user interface supplied by Guidance Marine or else Google Chrome are used. Other browsers will work but without guarantee. Once the control box has been connected to the network, type its IP address (default 192.168.2.231) into the web browser address bar and the user interface will appear in Birds Eye View. l 6 Getting Started This section describes RangeGuard Display and basic use of the system. It contains the following pages:
Start Up and Shut Down (Page 8) Screen Layout (Page 9) Display Options (Page 12) l 7 Start Up and Shut Down Start Up To Open RangeGuard Display 1. Ensure that the control box is powered on. 2. Double-click on the RangeGuard icon.
(Or run the RangeGuard Display application from:
Start > All Programs > Guidance RangeGuard > RangeGuard Display). 3. The display will appear in full screen mode, with the Birds Eye View open. Shut Down To Close RangeGuard Display Click on the X button in the top right corner of the screen. Birds Eye View Side Bar l 8 Screen Layout The RangeGuard Display presents positional information in one of three main formats, Birds Eye View, Table View and Single Sensor View. Birds Eye View (BEV) The BEV depicts the operational area of the RangeGuard system from above. By default, the BEV is centred on an image of the vessel and around this it shows a radar beam, range measurement and received signal level for each sensor that has detected an object. Birds Eye View focussing on one sensor The contents of the BEV can be enlarged or reduced by means of the Zoom In and Zoom Out buttons in the bottom right of the screen. Six zoom levels are available and the current level is indicated by the yellow bars between the buttons:
Birds Eye View without a sensor in focus Clicking on any one of the radar beam sectors causes a shift in the BEV so that the object detected by that beam is now at or close to the centre. The colour of the beam changes to reflect the range of the object (red, amber or green in accordance with configured alarm limits). The colours of the other beams also change to reflect the ranges of the objects that they have detected. The position represented by the mouse cursor on the BEV, taking into account the zoom level, is displayed above the zoom buttons, e.g. Mouse at 117, 68.10 m from vessel centre. These numbers are updated as the cursor is moved across the screen. In order to switch to the BEV from one of the other views, click on the Birds Eye View button in the top right of the display screen:
l 9 Screen Layout (Continued) Table View By default, this displays the positional data for all of the currently chosen sensors, in the form of a table. For each sensor this comprises:
Range : The measured distance to the object detected by the sensor. The background of this field is coloured according to the range value:
Red for ranges below configured red alarm limit Amber for other ranges below configured amber alarm limit White for longer ranges or if no measurement is made moved over the chart - numerically in the tooltip. Signal Strength : Represented by filled segments of a bar chart and if the cursor is Speed: This is calculated from the most recent range measurements and marked as Time to Contact: How long it would take for the vessel to make contact with the Closing Speed if the sensor is approaching the object and Separating Speed if moving away. detected object, based on the currently-displayed closing speed. Displayed as a number of seconds or as > 1 min. In the case of a separating speed, the field contains ---. Each row in the table contains a Profile button, which replaces the positional values for a sensor with a Profile plot:
This represents the signal returned at each range a large vertical peak means that an object exists at the range shown by the horizontal axis. The buttons along the top of the graph allow you to choose the way in which the system interprets the received signals. l 10 Screen Layout (Continued) In order to switch to Table View from one of the other views, click on the Table View button in the top right of the display screen:
Alternatively, by clicking on the Expand Spectrum button in the bottom right corner the screen is split between positional data and the profile plot:
Single Sensor View This is essentially a magnified form of the data in a single row of the Table View, with the addition of downward-pointing chevrons to indicate a closing speed or upward-pointing chevrons to indicate a separating speed. At very low speeds, only the top chevron is coloured (red for closing and green for separating). At higher speeds, the second and third chevrons are also coloured. Single Sensor View can show the positional data in extra-large numerals:
Click on the Collapse Spectrum button to maximise the positional data again. In order to switch to Single Sensor View:
Either Double-click on one of the radar beams on the Birds Eye View Or Double-click on one of the rows in Table View. l 11 Display Options To provide clear visibility during daytime operation and minimal glare during night shifts, the RangeGuard Display offers two display modes: Day View and Night View. In either mode the brightness can be further modified by brightness adjustment buttons. To change the day/night view and adjust brightness:
If in day mode, click on the Toggle Night Mode button:
If in night mode, click on the Toggle Day Mode button:
Click on the Decrease Brightness button to dim the screen:
Click on the Increase Brightness button to brighten the screen Hotkey Buttons l 12 Selecting/Deselecting Sensors A RangeGuard system can be run with up to four sensors. The overall sensor count and characteristics of each sensor are configured at installation time in the password-protected RangeGuard Control Panel (see 94-0448-4 RangeGuard Installers Guide for details). However, each sensor can be selected/deselected on the fly, using the Choose Sensors button:
Click on this button to obtain a menu containing the label of each sensor and a checkbox:
Only data from currently-selected sensors is shown on the Birds Eye View and Table View. l 13 Measurement Algorithms This section describes the different ways that RangeGuard can make measurements. It contains the following pages:
It contains the following pages:
Selection of Measurement Algorithm (Page 15) Setting the Range Limits (Page 16) Closest Algorithm (Page 17) Manual Threshold Algorithm (Page 18) Max Peak Algorithm (Page 19) Peak Lock Algorithm (Page 20) l 14 Selection of Measurement Algorithm There is a measurement algorithm setting for each sensor in the system. It is selected via the buttons above the sensors profile plot in Table View or Single Sensor View:
The algorithms use different methods of extracting a range measurement from the reflected signal received by the sensor. Each algorithm potentially gives a different range value in any given situation, so it is important to choose one that is appropriate for your needs. You may also want to disregard reflections from the shortest or longest ranges; see Setting the Range Limits on page 16. l 15 Setting the Range Limits By default, when calculating the range of an object, the system takes into account all reflected signals that it receives. However, it is possible to mask out reflections from the shortest and/or longest ranges, for example to ignore an overhanging feature of the vessels own structure. To set the Range Limits for a sensor:
1. Go into Table View and open the Profile for the relevant sensor, or else enter Single 2. Click and drag one or both of the green Range Limit sliders:
Sensor View and expand the Profile. Range Limit Sliders The beam for this sensor on the Birds Eye View is sized according to these limits:
ignored. 3. Leave the left-hand slider at the range below which you want all reflections to be 4. Leave the right-hand slider at the range above which you want all reflections to be Alternatively, double-click either of the sliders and type a numerical value into the entry box:
ignored. l 16 Closest Algorithm When the Closest algorithm is selected, RangeGuard bases its range measurement on the shortest range peak in the reflected signal, within the Range Limits and above the Signal Threshold. For this algorithm the Signal Threshold is fixed at 20dB above the nominal noise floor. The measured range is indicated on the Profile Plot by a vertical red line:
Measured Range (approx 100m) l 17 Manual Threshold Algorithm When this algorithm is selected, the Signal Threshold is adjustable, instead of being fixed at 20dB. Move the red slider up or down the dB axis to a suitable threshold level:
Signal Threshold Measured Range Note that the Manual Threshold algorithm measures the lowest range at which the signal breaks through the threshold, as distinct from the Closest algorithm which uses the lowest-
range peak. Alternatively, double-click the red slider and type a numerical value into the entry box:
l 18 Max Peak Algorithm With this algorithm no Signal Threshold is applied and the strongest reflected signal within the Range Limits is used for the range measurement, rather than the closest:
Measured Range l 19 Peak Lock Algorithm With this algorithm, you can manually select a peak within the Range Limits that is not necessarily the closest or highest. The system then locks onto it and reports its range. In order to select a peak, move the red slider along the Range axis:
Measured Range Peak Picker l 20 Appendices This section contains the following appendices:
System Specifications (Page 22) FCC Warning Statement (Page 23) Index (Page 23) l 21 System Specifications Sensor Transceiver Type Frequency Band Maximum Power Output Maximum Operating Range Minimum Operating Range Range Accuracy*
Angular Accuracy*
Azimuth Beam width Target Detection Vertical Beam Height Vessel Interface Sensor Power Sensor Control Sensor DP Feed Supported DP Systems Sensor Control Sensor Control Protocol Frequency Modulated Continuous Wave (FMCW) 24.05GHz 24.25GHz (Licence Exempt Short Range Device)
<100mW EIRP (EN 300 440 Compliant) 300m 1m 2cm + 0.1% of Range N/A 90 or 11 (10dB Width) Automatic or by manual selection
+/- 5.5 85 to 264v AC 45-65 Hz 5A, Max 100W Analogue and Digital control on CAT 5e SCTP N/A N/A Sensor Control capable of displaying 4 sensors simultaneously Ethernet Environmental Ambient Temperature Range Atmospheric Conditions Water and Dust Protection
(Sensor) Standards Compliance Recommendation RM. 1177 European Directive 2004/108/EC EN60945 RF Immunity Sensor Mechanical Height Width Depth Weight Max Cable run per sensor
-25 to +55C Operates in fog, heavy rain, snow and ice conditions IP67 certified EN 300 440-1 and 2, EN 60945 & EN301 843-1 (EMC) EN 60936:2002, Annex D, ITU-R 1000mm (worst case) @ 0.3 deflection IP66 rated Resistant to S and X band Radar when installed as recommended 23 cm 17 cm 13 cm 4 kg Up to 100m (CAT5e SCTP cable, Min AWG 24) l 22 FCC Warning Statement This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and
(2) This device must accept any interference received, including interference that may cause undesired operation. This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. End users must follow the specific operating instructions for satisfying RF exposure compliance. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. Changes or modifications not expressly approved by the party responsible for compliance could void the users authority to operate the equipment. l 23 Index F FCC Warning Statement 23 H Hotkey Buttons 12 O Overview System 6 S Shut Down 8 Side Bar 8 Start Up 8 System Overview 6 l 24