Safety Zone (Anti-collision)
UWB measures the distance between a worker's tag and a machine's tag and warns both before they collide. It runs on its own with tags and a phone or tablet, or connected to the Ubudu RTLS platform.
- distance accuracy
- 10 cm
- configurable alert distance
- 5-12 m
- alert response
- 0-3 s
- battery per charge
- 8-10 h
Solution
Both sides warned, before contact.
Staff Tags go on people, Machine Tags on vehicles and machinery. When the two come too close, the pedestrian and the operator are both alerted, so either one can stop in time.
Real-time alerts
Set the alert distance between 5 and 12 m. UWB measures the gap between two tags to 10 cm.
Pedestrian worker alerts
Warned in real time by vibration and LED on their Staff Tag.
Machine operator alerts
Alerted at the same time by a visual and audible signal on a smartphone or tablet.
Analytics
Safety Zone data analysis
Every alert is recorded, so the dashboard shows where and when risk builds up on your site.
Historical data analysis
Use the history to decide where to act first, then check that alerts drop after you change a route or a layout.
High-risk hazard identification
See at a glance which machine or area generates the most alerts, so you know where the risk of accidents is highest.
Risk trend over time
Track how the number of safety alerts evolves over time to monitor the level of risk across your site.
Key features
Safety Zone key features
Pedestrian alerts
LED and vibration on the Staff Tag.
Driver alerts
On a smartphone or tablet in the cab.
Automatic audit
Accident risk assessed from every recorded alert.
Easy identification
Distinct tags for staff (green) and machines (blue).
GDPR compliant
Purpose limitation, security, minimisation.
10 cm accuracy
UWB distance between two tags.
Flexible distance
Alert distance configurable 5-12 m.
No wires needed
The Machine Tag runs on its own battery, not the machine's power.
Hardware
Safety Tags
Two tags, two colours. Staff Tags (green) only alert with Machine Tags (blue), so colleagues walking side by side never set each other off.
Staff Tags
Worn by pedestrian workers. Green label. Warn the wearer with an LED and vibration when a Machine Tag comes too close.
Machine Tags
Fixed to vehicles and machinery. Blue label. Raise the alert on the operator's smartphone or tablet.
Six ways to wear a Staff Tag
Each worker picks the option that fits the job and the protective gear they already wear.
Neck 
Shoulder 
Hard-hat 
Arm 
Keychain 
Wrist
Industries
Where Ubudu RTLS fits
RTLS for Manufacturing & Logistics
Make operations more efficient by optimising flows and increasing visibility on production.
RTLS for Quick Service Restaurant
Stop waiters wasting time searching for customers at their table and make the experience more seamless.
RTLS for Healthcare
Help staff find the equipment they need, cut yearly spend on new kit and improve patient satisfaction.
RTLS for Construction
Get more from expensive machinery on-site and reduce the risk of accidents from collisions or hazardous zones.
How does the Safety Zone system work?
UWB measures the real-time distance between Machine Tags and Staff Tags. Machine Tags are fixed to heavy machinery or vehicles; Staff Tags are worn by the people around them.
When the distance drops below the pre-configured safety distance, an instant alert fires (visual, audible or vibrating) so both the pedestrian and the machine operator can react before an accident happens.
Up to what distance is the 0-3 s response guaranteed?
Within a range of up to 10 metres of the alert zone: a staff member entering it can expect an alert in three seconds or less.
Alerts improve safety but don't replace worker awareness. Use them alongside your other safety measures and protocols.
Are the tags rechargeable? How long do they last?
Yes. Each tag runs for about 8-10 hours (a full working day) and recharges overnight over USB-C in a few hours, from any standard USB port.
The tags are durable and resistant to impact and moisture, built for industrial and construction sites.
How do we tell staff and machine tags apart?
By their coloured labels: the Staff Tag is green and the Machine Tag is blue. Staff Tags alert only with Machine Tags, and Machine Tags only with Staff Tags.
Bring Safety Zone to your site.
See the alerts work with your own machines and people, or start with a Starter Kit bundling Ubudu hardware, software, tools and documentation.