Locate every asset.
Manufacture every connected device.
LinkSense is a smart solutions provider running two businesses under one roof: RFID / BLE / UWB real-time location (RTLS) systems, and the IoT components that make those systems real — 18650 battery packs, Pogo Pin connectors, and PCB. From tag antenna to location engine, one team owns the full stack.
We don't just sell tags, and we don't just do contract manufacturing
Most RTLS integrators source tags and boards externally; most component factories don't understand full-system operating conditions. LinkSense puts both under one roof: location algorithms and system integration, plus in-house design and manufacturing of batteries, connectors, and PCBs. Solutions define components; components feed back into solutions — shorter lead times, more controllable costs, and a single party responsible when issues arise.
Solution layer: understand the workflow
From warehouses and production lines to campuses and construction sites, we first map asset flows and operating nodes, then decide which location technology to use, how many anchors to deploy, and how tags should be mounted.
- On-site survey and signal simulation
- Technology selection: RFID / BLE / UWB combinations
- Integration with WMS / MES / ERP
Component layer: own the hardware roots
We manufacture the three critical parts of tags and gateways ourselves: 18650 battery packs determine runtime and safety; Pogo Pins determine charging and structural reliability; PCBs determine RF performance and cost.
- Battery pack + BMS design and assembly
- Pogo Pin custom design and manufacturing
- PCB design, prototyping, and assembly
Delivery layer: one team end to end
Hardware, firmware, location engine, and upper-layer software are delivered by the same team — interfaces aligned, versions synchronized, no finger-pointing among multiple suppliers.
- Tag / anchor / gateway complete units
- Location engine and visualization platform
- On-site commissioning, training, and O&M
RTLS Real-Time Location Solutions
RFID · BLE · UWB combined by scenario, not one-size-fits-allDifferent scenarios demand very different accuracy, cost, and tag power budgets. We treat the three technologies as combinable building blocks: RFID for entry/exit and inventory, BLE for zone-level presence, UWB for centimeter-level tracks and collision avoidance.
Entry/exit & inventory
UHF RFID portal doors, handheld terminals, and shelf readers answer “how many, where, and has it left.” Passive tags need no maintenance — ideal for high-volume assets.
- Portal read rate > 99%
- Passive tags, no battery changes
- Real-time inventory reconciliation with WMS
Zone-level presence
Bluetooth beacons + Angle-of-Arrival (AoA) positioning: low cost, fast to deploy, tag life measured in years. Suited for staff attendance, room-level assets, and instrument tracking.
- Accuracy 1–3m (AoA can reach sub-meter)
- Tag life 3–5 years
- Reuses existing Bluetooth infrastructure
Centimeter-level tracks
Ultra-wideband time-of-flight ranging resists multipath and metal occlusion. Used for forklift collision avoidance, tool tracing on production lines, and personnel safe-distance control.
- Accuracy 10–30cm, refresh 10–50Hz
- Supports geofence alerts and track replay
- Can fuse with BLE into dual-mode single tags
| Technology | Accuracy | Coverage radius | Tag power | Per-point cost | Recommended scenarios |
|---|---|---|---|---|---|
| UHF RFID | Zone-level (portal) | 0.5–8m (reader) | Passive, no battery | Lowest | Warehouse inventory, in/out portals, tool checkout |
| BLE / AoA | 1–3m; AoA ≤1m | 10–50m | Coin cell 3–5 years | Low | Staff attendance, instrument location, room-level assets |
| UWB | 10–30cm | 20–80m (environment-dependent) | Rechargeable Li-ion, weeks–months | Mid–high | Forklift collision avoidance, line tracing, safe-distance control |
| RFID + BLE + UWB fusion | Zoned tiers: portal / meter / centimeter | Full-scenario coverage | Mixed | As needed | Campus-wide unified asset governance |
IoT Core Components
18650 battery packs · Pogo Pins · PCBs — design and manufacturing as oneThese three component types determine three critical IoT device metrics: runtime, connection reliability, and RF/integration cost. We supply them to our own tags and gateways, and also as an independent component business for external supply and joint development.
18650 Battery Packs
Cell matching, pack design and assembly with our own BMS. Form factor, connectors, and harnesses can be customized to the host device. Focus is cycle life and safety consistency.
- Cell: 18650 cylindrical Li-ion, 3.6/3.7V single cell, 2400–3500mAh
- Pack voltage: 1S–7S (3.7V / 7.4V / 11.1V / 22.2V / 25.9V)
- BMS: over-charge/discharge/current/short/temperature protection; SMBus / UART
- Process: auto capacity matching, nickel-strip spot welding, overmold or heat-shrink, terminal crimping
- Safety & certification: UN38.3, IEC 62133, CE, RoHS
Pogo Pin Design / Manufacturing
Full flow from spring-pin structure design through volume manufacturing and plating. Addresses charging contacts, test fixtures, and modular interconnect. Structure and plating can be optimized for mating life and contact resistance.
- Structure: turned / stamped spring pins; single, dual, or magnetic connector forms
- Specs: pin diameter 0.6–6.0mm, working stroke 0.3–3.0mm, force set to requirement
- Plating: gold / nickel / palladium-nickel; contact resistance < 30mΩ
- Life: 100k–1M mating cycles (by grade)
- Supports waterproof structures, high-current, and high-frequency custom designs
PCB Design / Manufacturing
Circuit design, prototyping, and assembly for tag, anchor, and gateway motherboards. RF routing, power integrity, and antenna keep-out are designed together with the full mechanical form.
- Layers: 2–12 layer multilayers; FR-4 and high-frequency laminates
- Process: impedance control, blind/buried vias, ENIG / immersion silver / OSP
- Assembly: SMT + DIP + functional test (FCT)
- Prototyping: as fast as 48 hours; flexible mid/small-batch scheduling
- Optional antenna design and RF tuning
Two product lines. One shared foundation.
RTLS solutions define what the components must survive in the field. Component manufacturing keeps the solutions free of supply-chain surprises. R&D, testing, supply chain, and customers — all shared. That's how we shorten lead times and hold cost down.
A forklift anti-collision use case demands reliable uplink through metal occlusion. That requirement directly shapes the battery discharge curve, the Pogo Pin spring force, and the PCB antenna keep-out.
In-house battery packs and Pogo Pin tooling mean tag prototyping no longer waits on external production slots. Typical sample turnaround drops from 4–6 weeks to under 2.
18650 packs, Pogo Pins, and PCB are available as a standalone supply to other device makers, with full JDM / ODM support — including private label.
When positioning drifts in the runtime or battery life falls short of spec, there is no finger-pointing between integrator and component vendor. One team finds the root cause.
Capabilities: from cell to finished device
In-house lines and test equipment cover pack assembly, precision connector manufacturing, SMT, and finished-device burn-in.
High-current & cycle testing
Pogo Pin mating-cycle rigs, contact-resistance meters, and high-current thermal-rise stations verify connector stability across the full service life.
- Endurance rigs: 100k–1M cycles
- Ship criterion: contact resistance < 30mΩ
- ΔT logging at rated current
Battery safety & burn-in
Capacity & IR grading ensures pack consistency; BMS functional test and charge/discharge cycling verify behavior; 100% burn-in before ship.
- Cell matching ≤ 3% spread
- Per-unit protection threshold check
- 48h room-temp aging + thermal-cycle sampling
RF & positioning validation
Anechoic chamber and on-site RF simulation characterize actual coverage and accuracy of UWB anchors, BLE beacons, and RFID antennas.
- Antenna pattern & gain measured
- Multipath / metal-occlusion scenarios reproduced
- On-site accuracy acceptance report
SMT & assembly
SMT line + DIP post-solder + FCT station. Flexible change-over for mid-volume and quick-turn production.
Reliability program
Thermal cycling, salt spray, drop, vibration, and water-ingress tests. Reports issued per project requirements.
Certification support
Hands-on support for UN38.3, IEC 62133, CE, FCC, RoHS, and REACH.
From requirement to go-live, in four steps
Validate in a small footprint before scaling. Avoids the trap of a large investment that doesn't actually meet the accuracy target.
Site survey
Site walk-through, workflow mapping, accuracy and cost targets aligned. Output: technology recommendation memo.
Solution design
Anchor placement and RF simulation, tag form-factor (incl. component selection), system architecture and APIs.
Pilot validation
Small-footprint PoC deployment. Real-world measurement of accuracy, battery life, system integration. Report issued, design adjusted.
Scale-up
Mass production, on-site installation & commissioning, platform go-live, training, and ongoing support.
Already running in production
Across industries, the common thread is the same: materials, tools, and people — and the need to see all three in real time.
WIP flow tracing, tool & fixture location, AGV and forklift anti-collision. UWB + RFID combo.
Real-time cycle counts, gate in/out, slot-level location. RFID primary, BLE for coverage gaps.
Mobile equipment tracking, utilization analytics, high-value asset control.
Geofenced safety zones, intrusion alerts, labor-time and trajectory analytics.
Cycle counts, cart and tote trajectories, in-store heat-map analysis.
IT asset rack-level tracking, cabling and spare-parts locating, access authorization.
Tell us your scenario. We'll come back with a first-cut spec.
Whether you need a complete RTLS deployment, a steady supply of IoT components, or a joint-development project on a custom tag — we'd rather hear about it than guess. You'll get an initial technical recommendation and ballpark budget within two business days.
