Collapse Displacement Detection
Measures the tilt of slopes and structures in real time and alerts you immediately when it exceeds the threshold angle.
Install sensors where a collapse would cause a major accident, such as slopes, retaining walls, and earth retaining structures. They continuously send tilt in three directions and alert you immediately when the set angle is exceeded.
Dashboard
Connection status
The top of the screen shows whether you are connected to the server now.
| Display | Meaning |
|---|---|
| Connected · Real-time monitoring | Normal |
| Waiting for connection | Connecting |
| Disconnected · Connection error | Values are not updating. Refresh or reconnect |
Sensor cards
Each sensor has a card showing:
- Sensor name
- Angles in three directions: X · Y · Z
- Status: Normal / Caution / Danger
- Last measurement time
When a sensor is offline, a disconnected indicator appears. A sensor you just registered shows "Waiting for data".
Online status is based on 20 minutes
A sensor is treated as offline after 20 minutes without a signal. A brief drop and reconnect is not counted as offline, but a sensor that has just dropped does not switch to offline right away either.
Tilt trend
Click a card to open that sensor's details.
- Choose a period and view the X, Y, and Z lines overlaid
- Total measurements, maximum tilt, and average measurement interval
Gradual displacement shows up in this graph. Tilting a little over several days can be more dangerous than one large movement.
Settings
Set these on the Collapse Displacement Detection Settings screen.
Sensor settings
- Sensor name: A name people on site recognize when they hear it, such as
North slope, top - Memo
- Danger threshold angle: Set differently for each sensor
The threshold angle depends on the type of structure and site conditions. Decide it with the responsible engineer. Set it too high and you miss danger; set it too low and alerts flood in until people ignore them.
Alert recipients
Register names and phone numbers.
When you receive a danger alert
A Collapse risk detected alert appears at the bottom right of the screen. Click it to go straight to the dashboard with that sensor selected.
Restrict access to the area
A collapse cannot be undone. Restricting access comes before checking.
Check the trend
In the graph, see whether the displacement occurred suddenly or progressed gradually.
Structural review
The responsible engineer inspects and decides whether reinforcement is needed.
Keep a record
Record the action taken in the site documents. It becomes the basis for judgment in similar situations later.
How it differs from the Tilt Displacement Sensor
The Tilt Displacement Sensor in Smart Safety Equipment also measures angles.
| Collapse Displacement Detection | Tilt Displacement Sensor | |
|---|---|---|
| Mainly installed on | Slopes, retaining walls | Temporary works, structures |
| Threshold angle | Set per sensor on screen | Cannot be changed on screen |
| Also measures | Nothing | Impact |
If you need to adjust the threshold angle yourself on site, this solution is the right fit.