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RADAC WaveGuide 5 Direction User Manual

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  • Page 1 WaveGuide Direction User Manual...
  • Page 3 WaveGuide Direction User Manual Version 5.2-1-1 of Nov. 2020 Applicable for product no. WG5-DR-CP Related to software versions: wdi 5.2-1 Radac B.V. Elektronicaweg 16b 2628 XG Delft The Netherlands tel: +31(0)15 890 3203 e-mail: info@radac.nl website: www.radac.nl...
  • Page 5 Preface This user manual and technical documentation is intended for engineers and technicians involved in the software and hardware setup of the WaveGuide 5 Direction, Compact version (WG5-DR-CP). Note All connections to the instrument must be made with shielded cables with exception of the mains.

  • Page 7: Table Of Contents

    Contents Preface Introduction 1 Radar positioning and installation 1.1 Safety notes ........1.2 Positioning .

  • Page 9: Introduction

    Introduction The principle of operation of a WaveGuide 5 Direction is based on the synchronized mea- surements of sea elevation (heave) at three different spots on the surface of the water. Using these measured elevations, the water surface slopes are calculated in two perpendicular hor- izontal directions.

  • Page 11: Radar Positioning And Installation

    Caution Modification to the instrument may only be carried out by trained personnel that are authorized by Radac BV. Failure to adhere to this will invalidate the warranty and the approval certificate. Warning In hazardous areas it is compulsory to: •...

  • Page 12: Positioning

    Positioning For obtaining the best results from each WaveGuide sensor, the following positioning criteria must be taken into account: • It is advised to choose a mounting position such that the WaveGuide radar beam is free of large reflecting obstacles (the beam of the F08 antenna can be approximated to a conical shape having a 5 [deg] half top angle as shown...
  • Page 13 The working principle of the WaveGuide Direction is based on the measurement of surface elevation at three different positions, using an array consisting of three radars. The array design criteria are: • The footprints (measurement points) of the three radars on the sea surface must form a triangle.
  • Page 14 Radar sensor (functional) position and orientation Tilt angle of radar sensor β α (functional) with respect to vertical North Angle formed by the β line AC (functional) and reference North α β X and Y axis of the Directional System Figure 1.3: Definitions for WaveGuide Direction systems.

  • Page 15: The Point Array

    A installed vertically and B and C at a fixed tilt angle. Upon request, Radac can provide a standard mounting frame (product no. WG-MD-SS) that allows for easy and accurate mounting of the system (Fig. 1.6). The mounting frame can be used to mount the three radars together while allowing the Figure 1.4:...
  • Page 16 The optional mounting frame (product no. WG-MD-SS) consists of three parts connected to each other by bolts as shown in 1.6. The mounting frame should be installed on two horizontal beams (the horizontal beams are not included in the mounting frame package). Note: when designing and producing the horizontal mounting beams, enough horizontal distance should be left between the radars and the structure they are mounted to.

  • Page 17: The Line Array

    A mounting plate can be used to fix each radar to two horizontal beams at the desired location (an example sketch of such a plate is given in Fig. 1.9). Upon request, Radac can supply such a mounting plate (product no. WG-MP-SS). During installation it is advised to install the mounting plate first and secondly install the radar.

  • Page 18: The Triangle Array

    A mounting plate can be used to fix each radar to two horizontal beams at the desired location (an example sketch of such a plate is given in Fig. 1.11). Upon request, Radac can supply this mounting plate (product no. WG-MP-SS). During installation it is advised to install the mounting plates first and secondly install the radars.

  • Page 19: Wiring

    Block diagram Figure 2.1: Block diagram of the Waveguide 5 Direction. The three sensors A, B and C are connected to the local network as well as the processing unit. This diagram assumes the processing unit and the radars to be powered by a single power supply.

  • Page 20: Waveguide Radar

    • The cable must be shielded and can have a Reset Status maximum length of 80 [m]. Upon request, Radac can supply an optional cable Rx - that complies with the WaveGuide system require- ments for power and data transmission.
  • Page 21 Note Connecting the Reset poles for for 0.5 to 2 seconds during operation will cause the sensor to temporarily use the default IPV4 address 192.168.111.71 until the system is rebooted. Connecting the Reset poles for longer than 10 seconds during operation will cause the sensor to reset to default factory settings and reboot.

  • Page 22: Waveguide Processing Unit

    WaveGuide processing unit Note The RS485 connectors labeled as Sensor 1, Sensor 2 and Sensor 3 should not be used. Figure 2.3: Connector panel on the WaveGuide processing unit. The connector panel of the WaveGuide processing unit includes the following functional connectors: •...

  • Page 23: Waveguide System Commissioning

    Chapter 3 WaveGuide system commissioning With all system components correctly connected as described in the previous chapter, the processing unit can be configured using the following steps (explained in the current chapter): 1. Connect the WaveGuide processing unit to a computer. 2.

  • Page 24: Step 1. Connect The Waveguide Processing Unit To A Computer

    Step 1. Connect the WaveGuide processing unit to a computer Once the WaveGuide system is connected to a Local-Area-Network, communication can be done via the available web interface (Fig. 3.1). For this purpose any web browser with JavaScript enabled can be used. Figure 3.1: The web-interface of the WaveGuide processing unit.

  • Page 25: Step 2. Become An Authorized User

    In that case, the authorization data will be submitted automatically by the browser without a pop-up dialog. The default login password is “radac”. After a successful authorization, the user can view and change settings. After submitting any new settings a reboot dialog will appear.

  • Page 26: Step 3. Configuration

    Step 3. Configuration The configuration page contains five sections as listed in Table 3.1. Link Description Date&Time For viewing and setting the system time. Network For viewing and changing the network settings. Sensor For viewing and changing the sensor specific settings and for view- ing reflection diagrams.

  • Page 27: Step 3.2: Adjust Network Settings

    If the WaveGuide system is not connected to the Internet but instead connected to a local network that includes a time server, then the system can be adjusted to synchronize time and date with the local time server using the "Set NTP" button and submitting the local NTP server address.

  • Page 28: Step 3.3: Sensor Configuration

    Step 3.3: Sensor configuration Figure 3.5: Sensor configuration menu. The WaveGuide Direction is designed with a high level of flexibility in mind, to apply to every possible mounting situation. The sensor menu allows the configuration of those parameters that are specific to the sensor installation (Fig. 3.5). During the installation process it is important to register the position of each of the three sensors.
  • Page 29 Figure 3.6: Preview of the array orientation based on user input. The mounting height above the reference water level, and possibly a number of other parameters, needs to be set for each specific mounting location. This can be done in the configuration table that is shown in Fig.
  • Page 30 applied (as explained in Chapter 1). Max. Range The range maximum in [m] is the maximum distance at which the sensor will detect the water level. In general there is no need to modify this parameter. Yet in some situations it is advised to set this parameter to a value lower than two times the distance from the radar to the lowest expected water level.

  • Page 31: Step 4: Perform A System Check

    Step 4. Perform a system check This section explains how to inspect the quality of measurements after configuring and rebooting the WaveGuide processing unit (the start-up process can take up to 5 minutes): Step 4.1: Check the system information page The system information table can be reached through the status menu item on the right top.

  • Page 32: Step 4.2: Check The Reflection Diagrams

    Step 4.2: Check the reflection diagrams The reflection diagram for each sensor can be accessed via the sensor configuration page by clicking on the corresponding "reflection" button (Fig. 3.9). A reflection diagram is a graphic representation of a 25 [ms] scan, where the signal strength [dB] is plotted against the measurement distance [m].

  • Page 33: Step 4.3: Check Measurements

    Step 4.3: Check the measurements On the ’Dashboard’ page, the heave parameter shows data measured during the last 1, 3 or 10 minutes. Please inspect the available heave and slope graphs to visually confirm the measured data. From the same menu all calculated parameters are available. Please take into account that it can take up to 10 minutes to gather enough raw data to calculate the parameters.
  • Page 34 Default message format The Default format starts a new line for each parameter in the subscription. The time used in the Radac format is Unix Epoch time in milliseconds (UTC time in milliseconds since 00:00:00 on the 1 of January 1970). Each line in the Default format ends with a Line-Feed character (char10).
  • Page 35 For a regular message the status character is a space. If an error occurs the status character becomes a letter A. An example of the output strings in the RWS format is, +0001 - 0004 A+9999 Format02 message format Modifications can be made upon request. For example, the Format02 the Korean Meteoro- logical Administration (KMA format) preferred a readable time format in the Korean time zone.

  • Page 36: Technical Assistance

    Please note that it can take up to 3 minutes to generate and download the diagnostics file and that it can contain up to 100 [kB] of data. It is recommended to share the diagnostics file with Radac B.V. because it can help with providing future technical support.

  • Page 37: Using The System

    Dutch government for wave height analysis. It also meets the standards set by the International Association of Oil & Gas Producers (OGP). A detailed description of the SWAP package is available on the Radac website (http://www.radac.nl).
  • Page 38 Additionally the data can be transferred easily to other computers using an FTP application. Both login name and password for FTP file transfers are by default set to ’radac’. The port number is set to 21. Figure 4.1: Data logger page.

  • Page 39: Appendix 1: System Parameters

    Appendix 1: System parameters Available parameters The web user interface presents the raw and processed parameters to the user through the Dashboard page. Tables 1 to 10, describe all the parameters that are measured and calculated by the WaveGuide direction system. Unless stated otherwise, all processed parameters are calculated once per minute and are based on the most recent 20 minutes of data.
  • Page 40 Name Description Unit H1/3 Average height of the highest 1/3 of the waves TH1/3 Average period of the highest 1/3 of the waves H1/10 Average height of the highest 1/10 of the waves H1/50 Average height of the highest 1/50 of the waves T1/3 Average period of the longest 1/3 of the periods Average height of all waves...
  • Page 41 In the directional spectral analysis the frequency range from 30-500mHz is divided in sep- arate frequency bands. These frequency bands are given in the Table 9. Name Description Unit 200-500 100-200 30-100 Peak frequency band ( fmax-∆ f to fmax+∆ f ) Table 9: Frequency bands from 5 [mHz] spectra Per frequency band 2 parameters are calculated.

  • Page 42: Appendix 2: System Specifications

    Appendix 2: System specifications WaveGuide radar Mechanical Dimensions 265 x 245 [mm] (diameter, height) Weight ≈ 12.5 [kg] Casing material Stainless Steel, AISI 316L Electrical Radar frequency 9.319 – 9.831 [GHz] Modulation Triangular FMCW Emission The emitted microwave energy is far below acceptable limits for exposure of the human body.
  • Page 43 General system specifications sampling rate 10 [Hz] wave heights 0 – 60 [m] wave periods 1 – 100 [s] accuracy water level < 1 [cm] processing period: wave height 20 [min] (SWAP standard) wave direction 20 [min] (SWAP standard) tide 10 [sec], 1, 5 and 10 [min]) processing interval: wave height...

  • Page 44: Appendix 3: Led Blinking Modes

    Appendix 3: LED blinking modes The WaveGuide sensor is equipped with a blue indicator LED inside the top lid. The purpose of this LED is is twofold: • The LED functions as a status indicator when in standard operating mode. This is the status mode of the LED.
  • Page 45 Indicator pattern Definition Remark Off No power connected. Solid on Power is connected and the system is Wait for 2 minutes, after which the in- starting. dicator should change its behavior. Blink 1 time The system is up and running, but no Check the network cable connections.

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Wg5-dr-cp

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