Haoru UWB
Project requirements
Highway maintenance needs reliable visibility of vehicle/cone separation, cone placement and movement, especially over long routes or at night. Visual estimates provide limited measurements and audit records. GNSS supplies geographic position, while UWB supplies local ranges; integration must manage timing, interfaces and data alignment.
Solution
The proposed UWB/GPS architecture combines local ranging and absolute positioning in a vehicle/cone monitoring terminal.
Hardware Concept:
The described PCB combines an IEEE 802.15.4z-related UWB radio and GPS/BDS positioning with optional RTK, sharing power and timing arrangements where supported. Proposed CAN and cellular interfaces connect vehicle equipment and a monitoring platform. Confirm the actual board and protocol support.
The proposed TWR/SDS-TWR link measures ranges to battery-powered cone tags, with stated Β±10cm ranging and 10Hz updates. The design includes nearest-cone tracking and an adjustable separation threshold, with 1.5m as the example. Battery runtime above six months is a source design claim requiring configuration-specific verification.
The GNSS/RTK component supplies geographic position, speed and heading where corrections and reception permit. A platform displays vehicle tracks against the intended work-zone boundary.
Operating Workflow:
Before work, tagged cones are placed at the required spacing, with 5m/10m as examples. The terminal registers their IDs to define the monitored area.
During work, UWB measures separation and GNSS reports location. An example adjustable 1.5m threshold or a detected cone-state change can generate vehicle, staff and remote notifications. Associated camera images are attached to the event in the described workflow.
After work, the system records tracks, notifications, cone states and duration for reporting and review.
Communication Arrangements:The proposal uses 4G/5G for remote reporting and a local UWB link for vehicle/cone functions when external connectivity is weak. Stored records are uploaded after connectivity returns, subject to implemented buffering and power behavior.
Reported Outcomes
The source case reports safety monitoring, placement and digital-management results:
Safety MonitoringThe case reports Β±10cm separation measurements, violation detection rising from below 20% to 100%, notification times reduced from minutes to seconds and approximately 60% fewer incidents during its reported evaluation.
Work-Zone PlacementReported cone-spacing compliance improved from approximately 70% to above 99%, with displaced-cone identification within ten seconds.
Digital RecordsThe case reports complete track/notification/image recording, approximately 80% faster reviews, fivefold monitoring coverage per operator and approximately 40% lower labor cost.
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