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RTLS / APPLICATION GUIDE

Start with the tracking task.
Choose the right system.

Find assets, track handling vehicles or locate people in a work area. The target, update rules and existing systems determine the reader, anchors, tags and communication setup.

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WS-RTLS-RFID actual product photograph
Actual product photo | Select the delivered configuration

WS-RTLS-RFID

Associate an asset ID with its read location

UHF RFID identifies the item and UWB RTLS supplies positioning information. Associate the read time and location for warehouse inventory, tools and fixed assets.

Item tagRead + positionLocation record

Validate reader-to-item separation, timing and position reference; a reader coordinate does not give every tag an independently measured position.

Explore this product and its interfaces →Try the location-record demo
WS-RTLS warehouse handling application illustration
Application illustration | Site configuration must be confirmed

WS-RTLS-125K / A / ROBOT

Connect handling events to material locations

Select a host and positioning reference points for forklifts, trailers or AGVs, then define how material IDs, tags, loading and placement events relate.

Vehicle / materialHandling eventPlacement record

The documentation lists RJ45 / RS485 for 125K, RJ45 for A and RS485 for standard ROBOT. Confirm power and accessories by delivered version; a proximity alert is not automatic braking.

Explore this product and its interfaces →
WS-RTLS UWB-36V actual product photograph
Actual product photo | Select the delivered configuration

WS-RTLS UWB-36V

Plan anchors and tags around the tracking task

Combine UWB anchors with compatible positioning tags and software for people or asset location and trajectory displays. Select card, bar-shaped or display tags for the wearing, mounting and interaction requirements.

Person / asset tagUWB anchorsPositioning backend

Plan anchor count from the floor plan and obstructions. Confirm location, battery and trajectory functions for the delivered tags and software. Do not infer input voltage from the model suffix.

Explore this product and its interfaces →

01 Define the location outcome

Zone, shelf, coordinate and history requirements differ. Define whose location is recorded, when it updates and how it will be searched.

02 Check the site and interfaces

Provide the floor plan, obstructions, routes, power and network access. Confirm tags, interfaces and software for each product.

03 Verify on site

Communication range is not positioning accuracy. Set criteria by technology and model, including stationary, moving and outage-recovery tests.

Full positioning product list

Discuss your site requirements

The list covers different positioning technologies and device roles. Compare each model on its own product page. The application guide above also links to related RFID readers and UWB anchors.

  • RSSI Personnel Zone Positioning WS-RSSI Wristbands
  • WS-RSSI-R
    WS-RSSI-P
    WS-RSSI-W
    WS-RSSI-C
  • Retail service areas, hospital care zones, factory work areas and warehouse passages; personnel zone tracking and event integration
  • W/C: 902–908 MHz; R/P: 900 MHz positioning broadcast (confirm version)
  • RTLS Positioning System for Forklifts WS-RTLS Series
  • WS-RTLS-125K
    WS-RTLS-A
    WS-RTLS-ROBOT
  • Forklift and trailer location records, AGV / mobile equipment positioning and material-placement records. Select interfaces and reference-point roles by WS-RTLS-125K / A / ROBOT model.
  • 125KHz~4.5GHz
  • Smart Warehouse Forklift Tracking WS-PD TAG
  • WS-PD TAG
  • High-bay forklift tracking, tablet pickup/drop-off guidance and intralogistics
  • 915MHz
  • Body Ø82×21.77mm; 102mm including mounting ears
  • UWB RTLS Positioning Module WS-UWB-22DBAB
  • WS-UWB-22DBAB
  • OEM positioning hardware and base-station development, unmanned vehicle / forklift positioning, and asset or medical-equipment tracking. Requires reference points and backend integration.
  • 3744–4243.2MHz
  • Active RFID Zone Tracking System WS-ARFID4SX2
  • WS-ARFID4SX2-L-2G
    WS-ARFID4SX2-L-4G
    WS-ARFID4SX2-2G
    WS-ARFID4SX2-L-WiFi
    WS-ARFID4SX2-4G
    WS-ARFID4SX2-WiFi
  • Person or object location tracking
  • 902~928MHz
  • Indoor Personnel Tracking & Skin Temperature Monitoring
  • WS-ACS
  • Person or object location tracking
  • 916MHz
  • GPS Vehicle Tracker WS-GPS-GSM
  • WS-GPS-GSM
  • Vehicle positioning
  • 1575.42±1.023MHz

Location zone: start with what you need to track

People, assets, pallets and forklifts each have a system that fits. Pick a need to see the matching solution and models.

RFID, Bluetooth BLE or UWB: how to choose

The difference is how precise you need to be and whether tags can carry a battery. To know whether something passed a door, use passive RFID. To know which zone it is in, use Bluetooth or active RFID. To pinpoint a shelf slot, use UWB.

ComparePassive UHF RFIDReader + battery-free tagsActive RFIDBattery tags + receiversBluetooth BLEBadges + Bluetooth gatewaysUWBTags + UWB anchors
What you learnWhether and when it passed a read pointWhich zone a tag is inWhich zone or room a person or item is inX-Y coordinates, down to a shelf slot
AccuracyRead-point level; presence within about 0.5–3 mZone level (depends on receiver layout)About 1–5 m with signal strength (RSSI); about 0.5 m with angle of arrival (AoA)About 10 cm (time-of-flight ranging)
Tag batteryNone neededRequiredRequired, low powerRequired
InstallationReaders and antennas at doors and gatesA receiver in each zoneBluetooth gateways per zone; fewer devicesDenser anchors plus calibration
Best forDoor entry and exit, stocktaking, asset check-outZone tracking of people and vehiclesPeople tracking, SOS, roll callPallets, forklifts, precise people tracking
Our solutionsUHF RFID productsWS-ARFID4SX2Bluetooth people tracking systemUWB pallet tracking, UWB personnel tag

Accuracy figures are general industry references; real results depend on the site, device density and setup, so we survey the site first. Sources: Mapsted UWB vs BLE, ABI Research, infsoft indoor positioning comparison.

Typical deployment scenarios

These illustrative scenarios are based on common requests. Each shows the problem on site, how the system is set up, where to start, and which records to watch afterwards. They are not specific customer cases; the actual setup is planned after a site survey.

Maintenance technician beside an electronics production line, wearing a Bluetooth personnel badge

Electronics factory: dispatching staff and emergency roll call

Problem
The plant is large and technicians are spread out, so a machine stop means paging or phoning around. Evacuation drills rely on paper roll call, which is slow to check.
Setup
Staff wear Bluetooth badges, each area has a Bluetooth gateway, doors get 125 kHz triggers, and a PC shows the live map.
Rollout
Pilot on one line and the maintenance room to settle zones and the SOS flow, then extend to the whole plant and muster points.
Records
Time from dispatch to arrival, SOS response time, roll call completion time and the list of missing people.
Bluetooth people tracking system ›
UWB pallet tracking system screen

Warehouse and line buffers: which slot each pallet is in

Problem
Pallets get parked in buffer areas or aisles. After a shift change nobody knows where they are, so finding goods means walking the whole area.
Setup
Pallets carry UWB tags and the warehouse gets calibrated UWB anchors. Forklifts get UWB plus RFID so every pick and drop logs its location.
Rollout
Start with the buffer area where goods go missing most, map its slots, then connect to WMS or ERP receiving and shipping.
Records
Slot and time of each pick and drop, time spent searching, forklift routes and trip counts.
UWB pallet tracking system ›
Construction site muster roll call and missing-worker check screen

Construction site: danger zones and evacuation

Problem
Lifting and open-edge areas are off limits, and many workers come and go each day, so in an incident it is unclear who is still on site.
Setup
Workers wear tags, danger zones are geofenced and the gate logs entry and exit; managers see headcount per floor live.
Rollout
Start at the gate and one high-risk work area, move anchors as construction progresses, and extend floor by floor.
Records
Danger-zone intrusions, entry, exit and attendance logs, and the missing-worker check during evacuation.
Construction site safety ›
Asset tracking in a hospital

Hospitals and labs: where shared equipment is

Problem
Wheelchairs, infusion pumps and instruments are lent between departments, go missing when needed, and stocktaking means checking room by room.
Setup
Equipment carries active RFID tags and each ward or lab has a receiver; an alert fires when equipment leaves its assigned area.
Rollout
Pilot with the most-borrowed type of equipment in two or three departments, then add equipment types and areas.
Records
Location and dwell time, check-out and return records, leave-zone alerts and stocktaking time.
Smart asset management ›
UWB RTLS real-time location

Where is it? Just look at the map.

Fit forklifts, pallets, baggage trolleys, tools or people with a UWB tag. Anchors and the platform compute coordinates in real time and show them on your floor plan. WENSHING designs tags, anchors and the platform in-house.

10cmAccuracy (WS-RTLS series, forklift system)
4msPositioning time (same systems)
3.5/6.5GHzDual-band UWB anchor
Warehouse UWB RTLS tracking carts and pallets
Warehouse: carts, cages and pallets
Problem → value

From "Where is it?" to "Open the map."

  • TodayPeople walk the site to find things

    Shared carts and pallets move all day, so staff search zone by zone.

    With UWB RTLSFind it on the floor plan

    Type an ID or name; the map shows its current position and zone.

  • TodayNo record of material handling

    Where goods were placed and who moved them relies on memory and paper.

    With UWB RTLSPosition, time and track logged automatically

    Forklift hosts log goods and placement; every route can be replayed.

  • TodayHazard zones and headcount are invisible

    Worker distribution and entry on sites and plants is unknown in real time.

    With UWB RTLSZone events in real time

    Geofencing, entry attendance and muster checks show the last position of anyone missing.

Adoption path

One system, four steps toward automation

No big-bang project: start by seeing positions, then add tracks, zone rules and business-system links on the same tags and anchors.

  1. STEP 1

    See where

    Live tag positions on the floor plan.

  2. STEP 2

    Review the past

    Tracks, mileage and dwell zones back up every handover.

  3. STEP 3

    Manage zones

    Geofences, entry attendance and muster checks.

  4. STEP 4

    Connect systems

    Handling and location records flow to WMS / ERP and MES work orders.

What it does

Three kinds of value you can see

Find it, don't hunt for it.Less time looking

  • Forklifts & cartsFind and dispatch by vehicle ID
  • Pallets & materialsLocate stock without digging
  • Baggage & trolleysTrack item by item, cart by cart
  • Shared equipmentWheelchairs and beds: look, then fetch

Records write themselves.Complete work history

  • Auto handling logGoods and placement recorded together
  • Walk-through countsEach tag read is linked to a coordinate
  • Entry attendanceArrival time captured automatically
  • Track replayProof for handovers and tracing

Control zones. Work safer.Lower site risk

  • GeofencingInstant alert at hazard zones
  • Forklift safety fence125 kHz, settable 1–10 m
  • Call buttonOne press to request help
  • Muster checkRoster compared automatically
System architecture

Tag → anchor → platform → application: four layers, one system

Tags move with the target; anchors are fixed references; the engine solves coordinates on the map; applications turn location into search, dispatch, safety and business data.

1

Tags

Move with goods, vehicles and people

  • WS-UWB65LAsset / pallet tag
  • WS-UWBXYZP1Personnel card
  • WS-UWBPDTE-ink display tag
  • RTSL-UWB-125KForklift host
2

Anchors

Fixed reference points that hear the tags

  • WS-RTLS UWB-36VDual-band UWB 3.5 / 6.5 GHz
  • RJ45 / Wi-Fi MeshAnchor backhaul
  • WS-RTLS series125K vehicle, A reference, ROBOT
  • WS-UWB-22DBABUWB module for OEM devices
3

Location engine & platform

Turns measurements into map coordinates

  • Position solvingAnchor ranging + calibrated coordinates
  • Live floor-plan viewFind by ID or asset name
  • Tracks & mileageReplay every move
  • Battery monitorLow-battery alerts
4

Applications & business systems

Turns location into daily work

  • Search & dispatchForklifts, carts, baggage trolleys
  • Zone eventsGeofence, muster check
  • WMS / ERPPallet and handling records
  • MES / work ordersLinked per project

Start with one work zone, then add anchors and tags to grow zone by zone to the whole site.

Accuracy & coverage

It times the signal, not its strength

UWB times very short pulses travelling from the tag to each anchor; the ranges intersect into a coordinate, more precise than estimating by signal strength. Real accuracy and coverage depend on the four site factors shown, which WENSHING plans from the survey.

  • 10 cmAccuracy: WS-RTLS series, RTSL-UWB-125K
  • 10 cm classCore ranging: WS-RTLS UWB-36V anchor
  • 20 cmAccuracy: construction worker tracking
  • 50–200 mAnchor link range (depends on tag)
Anchor 1Anchor 2Anchor 3Tagt1t2t3Measures signal flight time t1, t2, t3 — not signal strength
Each anchor measures its range to the tag; the intersection is the coordinate.
  • Anchor count & layoutAnchors surround the tracked area; better geometry gives steadier coordinates.
  • Obstacles & metal racksAnchor positions and tag orientation are planned around aisles, walls and rack height.
  • Coordinate calibrationAnchor positions are surveyed, map scale is set, then known points are checked.
  • Reporting intervalSet to match how fast objects move, balancing real-time view and battery life.
Applications

Four sites, one location architecture

Warehouse forklift tracked by UWB RTLSWarehouse forklifts

Forklifts: the system remembers where goods went

Tracks
Forklifts, pallets, materials
Uses
RTSL-UWB-125K、WS-UWB65L
You see
Placement, routes, WMS / ERP records
Airport baggage trolleys and ground equipment tracked by UWBAirport ground ops

Baggage tugs and trolleys, item by item

Tracks
Bags, trolleys, ground equipment
Uses
WS-RTLS UWB-36V、WS-UWB65L
You see
Positions in staging, sorting and transfer areas
Factory technician wearing a UWB personnel cardFactory staff

Factory staff: one press, nearest person dispatched

Tracks
Maintenance, patrol, visitors
Uses
WS-UWBXYZP1、WS-UWBPDT
You see
Staff zones and call events
Construction site worker distribution and entry tracked by UWBConstruction safety

Construction: headcount and hazard alerts

Tracks
Crews and contractors
Uses
Construction worker tracking system
You see
Attendance, geofence, cross-floor search, muster
Deployment

Survey → install → calibrate → go live

WENSHING plans anchor positions and tag choices from your floor plan, proves a pilot zone, then expands.

  1. 1

    Site survey

    Share floor plans, racks and walls; mark what to track plus power and network points.

  2. 2

    Installation

    Mount anchors around aisles and obstacles; bind each tag ID to an asset, vehicle or person.

  3. 3

    Calibration

    Survey anchor coordinates, set map scale, and verify with fixed points and moving routes.

  4. 4

    Go-live

    Start with one representative zone, set user rights and upkeep routines, then expand zone by zone.

Component guide

One role per component: pick by scenario

RoleModelKey specificationsBest for
AnchorWS-RTLS UWB-36V3.5 / 6.5 GHz; 850 kbps / 6.8 Mbps; RJ45, Wi-Fi Mesh; 12 V / 500 mAAirport baggage, warehouse carts, factory tools, hospital equipment
Asset tagWS-UWB65L6.5 GHz, TDoA; CR2450, up to 3 years at lowest power; 27.5 gPallets, helmet-mounted, carts and equipment
Personnel cardWS-UWBXYZP13.5 / 6.5 GHz versions; call button, audible reminder; 53.3×77.4×5.5 mmMaintenance patrols, hospital staff, visitors and contractors
Display tagWS-UWBPDT2.6-inch e-ink; Wi-Fi backhaul; 1200 mAh, Qi wireless chargingWarehouse item labels, office staff, factory status
Forklift hostRTSL-UWB-125K10 cm accuracy, 4 ms positioning time; 12–36 V; 125 kHz safety fence 1–10 mForklifts log goods and set-down points automatically
System setWS-RTLS 125K / A / ROBOT10 cm, 4 ms; 125K line-of-sight range 620 mForklifts, materials and AGVs
HandheldWS-RTLS-RFIDUHF RFID read range 1–8 m; UWB positioning range up to 400 mWalk-through inventory with location records
ModuleWS-UWB-22DBAB3744–4243.2 MHz; TTL UART / SPI; 23×50 mmOwn positioning devices, AGV development

Complete solutions: UWB pallet tracking and construction worker tracking.

FAQ

7 questions buyers ask first

  • What is UWB positioning?

    UWB (ultra-wideband) times very short pulses from a tag to fixed anchors, converts the times to distances and intersects them into a coordinate. It suits real-time location (RTLS) indoors and across plant areas.

  • How accurate is UWB RTLS?

    WENSHING WS-RTLS series and the RTSL-UWB-125K forklift system reach 10 cm accuracy with 4 ms positioning time; the WS-RTLS UWB-36V anchor offers 10 cm-class core ranging; the construction worker system reaches 20 cm. Real accuracy depends on anchor layout and on-site calibration.

  • How many anchors do I need?

    It depends on area, obstacles and aisles. The WS-RTLS UWB-36V links with tags over about 50–200 m depending on the tag. Send a floor plan for a layout; coverage can grow zone by zone.

  • How long do tag batteries last?

    WS-UWB65L runs on a CR2450 for up to 3 years at lowest power; WS-UWBPDT has a 1200 mAh battery with Qi wireless charging and lasts 2 years at lowest power. Reporting intervals are adjustable.

  • Can it connect to WMS, ERP or MES?

    Yes. In the pallet solution, handling events, positions and times link to WMS / ERP; factory projects can connect to MES and work orders.

  • Does it work outdoors and across floors?

    Yes. Anchors are planned per floor, wall and obstacle; the construction worker system covers indoor floors and outdoor areas and finds people across floors.

  • What do you need for a quote?

    A floor plan, what and how many items or people to track, how they move, the refresh rate and accuracy target. WENSHING then plans anchors, tags, network and platform.

Start with one zone and make everything findable

Tell us your site size and what to track; WENSHING plans anchors, tags and the platform.

Request a UWB plan & quote