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What is the importance of pin-point accuracy?

What is the importance of pin-point accuracy?

Proximity detection systems entail a wide spectrum of technologies, each offering varying degrees of range, penetration, and precision. While some believe precision accuracy is always superior, at ZoneSafe, we recognise that the best solution is a strategic decision driven entirely by the specific risk.

We address two distinct safety challenges: Vehicle-to-Vehicle (V2V) anti-collision and Vehicle-to-Person (V2P) personnel protection. To meet the unique demands of each, we strategically deploy two core technologies: Ultra-Wideband (UWB) and Active Radio Frequency Identification (RFID) across our core product range.

Table of Contents

When pin-point accuracy is non-negotiable

We deploy UWB where pinpoint distance measurement is critical for long-range V2V anti-collision. This absolute precision is crucial where an error of just a couple of metres in a warning distance could be catastrophic.

UWB’s pin-point accuracy is enabled by precisely measuring the distance between two equipped vehicles via Time-of-Flight. This accuracy allows the system to trigger a highly reliable, staged anti-collision warning, issuing a series of pre-emptive audible and visual alerts inside the cab of both vehicles.

Here, stable distance measurement is a greater safety factor than close-range penetration because the system’s primary job is to generate a trustworthy warning that corresponds exactly to the long-distance danger zone, allowing for maximum reaction time to brake or slow down.

How our V2V system achieves this through UWB:

  • Method: Direct distance measurement between vehicles using Time-of-Flight.
  • Precision: Delivers centimetre-level accuracy, ensuring warning zones are exact over long distances.
  • Architecture: Fully self-contained on vehicles; no site infrastructure needed.
  • Result: This achieves the highest V2V accuracy while maximising portability and minimising operational cost. This design prioritises precision over penetration for early, reliable anti-collision warnings.

An analogy of this might be a sniper rifle: it is an instrument engineered for pin-point precision, ensuring the target distance is isolated and locked with absolute certainty.

vehicle collision avoidance system

When absolute detection is paramount

Active RFID is chosen for V2P to maximise reliable detection and penetration and eliminate the False Negative risk (failing to detect a hidden person) in highly cluttered zones. In a close-proximity environment, what matters most is uninterrupted detection.

The Active RFID technology enables a simultaneous, two-way alert. When the vehicle’s system detects the pedestrian’s tag entering the proximity zone, it triggers an audible/visual alert for the driver and an immediate vibration on the tag itself. This ensures both the pedestrian and the driver are instantly warned, giving them both an added layer of protection.

Pinpoint accuracy is not necessary, as a driver’s unavoidable reaction delay completely absorbs any marginal gain in warning time.

How our V2P system provides reliability through Active RFID:

  • Method: Signal strength (RSSI) enables proximity and strong penetration.
  • Precision: Delivers metre-level accuracy, sufficient for the driver’s response to stop/slow down.
  • Architecture: The signal is uniquely designed to travel through racking, piled materials, pallets, walls, and blind corners.
  • Result: This superior penetration eliminates the False Negative risk, providing the robust, proactive detection necessary for personnel protection.

An analogy of this might be a shotgun: it is an instrument engineered for broad dispersal and robust penetration across a wide, cluttered zone.

warehouse collision avoidance system

A dual-technology necessity

Attempting to use a single technology for all proximity challenges will compromise either safety or deployment scalability. The ZoneSafe dual-technology strategy is built on complementary strengths, ensuring each system performs its designated task without compromise.

By combining UWB’s reliable ranging stability with Active RFID’s superior close-range penetration and two-way alert capability, ZoneSafe provides a unified system where the required level of accuracy is always precisely matched to the specific safety risk.


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