GrowSpace UWB Anchor Deployment Guide
If you have already set up the UWB device and installed the software in the previous steps, now it’s time to learn how to deploy the anchors in a real environment.
Measuring Installation Space Distance (Essential Step)
To improve the accuracy of the UWB RTLS system, precise measurement of the installation space is essential.
In this step, you will measure the indoor space and select the reference anchor (initiator).
✅ Essential Tools | Measurement Tools
Prepare the following tools to ensure precise anchor placement.
| Tool | Description |
|---|---|
| Measuring tape (Laser distance meter recommended) | Improves measurement accuracy |
| Notebook & Pen | Record measurements and organize coordinates |
| Double-sided tape | Temporarily fix the anchor and adjust the position |
| Masking tape | Mark measurement points on floors/walls |
| Screws & Drill | For final anchor installation |
| Power cable & Extension cord | Prepare in case power is needed |
📌 TIP:
- Ensure the measuring tape starts and ends precisely at the correct points.
- Measure the distance between the anchor centers (Center-to-Center).
- Verify the distance at least twice to reduce errors.
Setting the Reference Anchor (Initiator)
The reference anchor serves as the base point of the UWB network and acts as the center for all location calculations.
Reference Anchor Placement Principles
- Typically placed at the edge of the space
- Only one reference anchor should exist
- Serves as the center point for measuring distances from other anchors
It is generally placed at the (0,0) coordinate, but this is not mandatory.
👉 Consider the space layout, obstacles, and interference factors to determine the optimal location.
Guide to Selecting the Reference Anchor Location
| Space Type | Recommended Reference Anchor Location |
|---|---|
| Large Factories, Warehouses | Minimize the impact of columns and walls, ensuring good signal propagation |
| Indoor Spaces like Offices, Hospitals | Placed along walls or near entrances |
If the reference anchor is placed in a different position than (0,0)?
Simply set a new reference coordinate and enter the remaining anchor coordinates relative to it.
Placement of Remaining Anchors
When placing the remaining anchors, consider two methods.
✅ Anchor Placement Methods
- Square-Shaped Space → Place evenly at four corners
- Irregular-Shaped Space → Apply the Trilateration method
💡 Trilateration Placement Principles
Trilateration requires at least three anchors. It calculates the tag’s position based on the intersection of three distance circles measured from the anchors.
Want to learn more?
🔗 Understanding the Trilateration Concept
Optimal Anchor Spacing & Height
✅ Recommended Anchor Spacing: 15 ~ 20m
UWB anchors should be placed at a consistent distance to maximize signal accuracy.
Generally, a spacing of 15-20m is recommended, but it should be adjusted according to the installation environment.
