Overview
This article will show how to add a ShapeArray device to a Thread and the configuration options for it.
How to add a ShapeArray
If the Shape Array was programmed during setup, please ensure that it is set up to read in regular power mode to enable communication between the Shape Array and Thread.
Ensure that the THREAD is turned on and that the ShapeArray is connected to the Thread via one of the Thread Device ports.
1. Navigate to the Connectivity Module.
2. Press the button directly on a THREAD to add a Device to it. If your THREAD does not appear here, you may still need to Add Your THREAD as a Connection.
3. You may also add a device from the button in the Devices & Sensors Section.
4. Select one of the ShapeArray options, if you're setting up a SAAV or SAAF then please select ShapeArray. If you're setting up the older model that requires an XYZ module for automation then please select ShapeArray XYZ.
5. After that, select the port the device is wired to and if it has Convergence Mode On or Off.
* Convergence Mode: Meant for ShapeArrays that will be used to monitor convergence in a section of a tunnel. When selecting an SAAV for convergence monitoring, it is important to choose an appropriate segment length. The appropriate segment length is determined by the radius of the tunnel cross-section to be monitored.
Device Configuration
Once the device is added, the app will automatically show its configuration page.
1. Allows the device configuration for segments, fixed end, offsets, elevation, etc. (can be completed after discovering segments).
1.1 Fixed End - Determine if the movement will be measured from the first segment (near) or the last segment (far).
1.2 Mode - Determine if the ShapeArray is installed vertically or horizontally.
1.3 Segment - Segment number.
1.4 Offset - Distance between each segment.
1.5 Elevation - Elevation of each segment.
2. Convergence Mode - Meant for ShapeArrays that will be used to monitor convergence in a section of a tunnel. When selecting an SAAV for convergence monitoring, it is important to choose an appropriate segment length. The appropriate segment length is determined by the radius of the tunnel cross section to be monitored.
3. Anti-rotation adjustment adjusts data for instances where segments in a ShapeArray roll (rotate) but do not have a significant change in their tilt.
4. Used when a ShapeArray is installed in a conduit with an internal diameter between 27mm and 100mm. Due to its thickness, the device will adopt a helical or "zig-zagged" shape, demanding further calculation to find the correct movement measured by that device.
Due to that, virtual vertices will be calculated to produce a medial axis that will then be used to calculate reliable deformations.
5. Discover Segments will automatically configure the number of segments and their serial numbers, allowing further configuration of the device.
6. Will automatically send emails informing of erroneous readings and information about them.
Segments Configuration
Configuring the orientation of the ShapeArray's segments will require the knowledge of how the ShapeArray was physically installed. The following will describe physical features on the ShapeArray to reference by.
When a Vertical ShapeArray is installed, the orientation of the "X Line" on the ShapeArray should be noted and measured relative to North.
The X/Y Axis will always be fixed relative to the sensor. The "X Line" labeled on the ShapeArray will represent the X Axis. The Y Axis will be 90° counter clockwise to the X axis.
1. The ShapeArray does not inherently know North/East. In order for North/East to be correctly represented, you will need to specify the Device azimuth. This is done by measuring the angle from North to the Y Axis in a clockwise direction.
Reference Indicator - The "Y Axis" is the sensors Reference Indicator.
Specify the Device Azimuth to use Northing/Easting calculations.
2. This field will allow you to orient the Transverse/Longitudinal Axis in any desired direction. It is useful for finding movement in the direction of a specific structure or any point of reference. See the Structure Azimuth Section for instructions on how to properly set it up.
Specify the Structure Azimuth to use Transverse/Longitudinal calculations.
3. The distance between 2 reference points. Examples include the total height of the structure from its base or the distance between the 2 anchor points of the beam the tilt sensor is mounted to.
4. Raw2Data will ignore any raw values recorded in the raw data file for that segment and instead, use the raw values for the adjacent un-slaved segment that is closest to the reference end (fixed end).
5. Completely ignore a segment but it's only available for the furthest end away from the reference point. For example, for a SAA with 300 segments, it would be available for the segment 300 and if you mute it, it would be now available for 299 and so on. Don't believe it's possible to mute a segment in the middle of the SAA but if it is, all the other segments on the opposite side of the fixed end would be ignored.
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