Safety Hook
Checks whether workers at height actually clip on their safety harness hook.
Carrying a safety harness is different from actually clipping it on. This device detects whether the hook is clipped on. Falls often happen not because workers did not bring a harness, but because they did not clip it on.
What it shows
| Value | Meaning |
|---|---|
| Hook in use | Whether the harness is clipped on |
| SOS signal | Whether the worker asked for help |
| Motion | Whether it is moving |
| Battery | Remaining power |
Danger criteria
| State | Level | Meaning |
|---|---|---|
| SOS Signal | Danger | The worker asked for help directly |
| Not In Use | Critical | The worker is carrying the harness but has not clipped it on |
Not In Use is the dangerous state
On the screen, Not In Use means "the safety hook is not being used." During work at height, this state needs immediate action. Normal, on the other hand, means the hook is properly clipped on.
As with the helmet, the motion value is not used to judge danger.
Screen
Same as the common screen layout, and nearly identical to the helmet.
Dashboard summary
All Devices / Motion Detected / SOS Signal / Not In Use
Device details
- Safety Chart: Summary of usage rate and activity rate, and a graph of state changes
- Event Log: 50 entries at a time. Each entry has a Normal / SOS / Not In Use tag
Statistics tab
- Safety anomaly rate
- Anomaly distribution (SOS Signal / Not In Use)
- Event trend
- Distribution by day of week and time of day
When Not In Use is detected
Check the location and time
See which area it is on the map and when it happened.
Check whether it was work at height
If the worker was moving or working on the ground, not clipping on is normal. Check what work was being done in that area at that time.
If it was work at height, act immediately
Contact the area and have the worker clip on. If the project also uses Network Speaker, you can set an automatic broadcast rule so guidance plays in that area.
Viewing statistics
If Not In Use clusters in a particular area or time, it may be a problem with working conditions rather than an individual one. Check whether there is a proper anchor point, or whether the spot makes clipping on difficult along the work path.