| System Architecture | Downlink positioning method | Fixed anchors transmit synchronized signals; mobile tags estimate position from signal timing or phase information. | Downlink operation can reduce tag-side communication and may support low-power mobile devices. | Confirm whether the system uses time-of-flight, time-difference-of-arrival, angle information, or a hybrid method. |
| Radio Technology | UWB frequency range | IEEE 802.15.4 UWB channels operate within the approximately 3.1–10.6 GHz ultra-wideband spectrum range. | Frequency selection affects regional compliance, antenna design, propagation behavior, and coexistence. | Check supported channels, regional radio approvals, antenna specifications, and configuration restrictions. |
| Radio Technology | Channel bandwidth | Common high-rate UWB channels use bandwidths close to 500 MHz, depending on the selected channel and standard profile. | Wide bandwidth enables fine time resolution, which is important for accurate ranging. | Review the technical specification and verify channel bandwidth in a spectrum or conducted test where appropriate. |
| Positioning Performance | Range accuracy | Sub-meter accuracy is technically achievable in suitable line-of-sight environments; actual results depend on geometry, calibration, multipath, and installation. | Published accuracy without test conditions may not represent performance in warehouses, factories, or public spaces. | Request results from a repeatable test route covering open areas, obstructions, reflective surfaces, and different tag orientations. |
| Positioning Performance | Update rate and latency | Select according to use case: approximately 1–10 Hz for monitoring, and higher rates for motion control or fast asset tracking. | Higher update rates can improve responsiveness but usually increase radio traffic, processing load, and power consumption. | Measure end-to-end latency from tag movement to application output under the intended number of active tags. |
| Coverage Planning | Anchor spacing and geometry | Use multiple anchors with good spatial separation; four or more anchors are commonly preferred for robust two-dimensional positioning. | Anchor geometry directly affects dilution of precision, height estimation, and resilience to signal blockage. | Simulate the planned floor area and conduct a site survey before finalizing anchor locations. |
| Coverage Planning | Line-of-sight and non-line-of-sight behavior | Direct line-of-sight generally provides the most stable results; walls, metal structures, people, and machinery can introduce bias. | Non-line-of-sight errors may cause position jumps or a persistent offset even when radio connectivity remains available. | Test representative obstructions and assess filtering, quality indicators, and fallback behavior. |
| Synchronization | Anchor clock synchronization | Timing-based positioning requires tightly controlled synchronization or a ranging procedure that compensates for clock differences. | Clock drift and synchronization errors translate directly into distance or position errors. | Check synchronization architecture, holdover behavior, network dependency, and performance after link interruptions. |
| Scalability | Number of supported tags | Capacity depends on packet duration, update rate, channel access method, anchor count, and application traffic. | A system that performs well with a few tags may experience collisions or delayed updates at larger scale. | Run a load test using the expected peak tag population plus a reasonable growth margin. |
| Mobile Device | Tag power consumption | Battery life is determined by transmit or receive duty cycle, update rate, processor load, battery capacity, and power-saving modes. | Low-power tags are important for personnel badges, tools, returnable containers, and long-term asset tracking. | Measure current in sleep, acquisition, tracking, and loss-of-signal recovery states at the required update rate. |
| Environmental Design | Operating temperature and enclosure | Choose an industrial temperature range and enclosure rating appropriate to the site; common ingress targets include IP54, IP65, or higher. | Dust, water, vibration, condensation, and temperature changes can affect both electronics and measurement stability. | Match the declared environmental ratings with the installation conditions and review test standards used for certification. |
| Integration | Data interfaces | Typical integration options include Ethernet, Wi-Fi, cellular backhaul, serial interfaces, MQTT, REST APIs, or message-based protocols. | Open interfaces simplify connection to warehouse management, manufacturing execution, safety, and analytics systems. | Request interface documentation, sample payloads, authentication methods, rate limits, and event-time definitions. |
| Data Quality | Position confidence and diagnostics | Useful outputs include coordinates, timestamp, anchor quality, ranging quality, confidence score, and loss-of-update status. | Diagnostics allow applications to distinguish real movement from multipath, interference, or temporary coverage loss. | Verify that quality metrics are available in real time and can be stored for troubleshooting and audit purposes. |
| Security | Ranging and communication protection | Prefer authenticated devices, protected session procedures, secure key management, and cryptographic ranging features where supported. | Secure ranging helps reduce spoofing, unauthorized tracking, and manipulation of location data. | Review the security architecture, key rotation process, firmware signing, access control, and vulnerability response policy. |
| Compliance | Regulatory approval | Radio operation must comply with the requirements of the deployment region, including permitted bands, power limits, and testing rules. | Approval requirements vary by jurisdiction and may affect channel selection, installation, and importation. | Confirm applicable regional certifications and retain declarations, test reports, and installation restrictions. |
| Deployment | Installation and calibration effort | A complete deployment normally includes anchor placement, coordinate surveying, height measurement, calibration, and coverage verification. | Correct physical installation is often as important as the radio hardware for achieving consistent positioning. | Estimate labor, tools, commissioning time, recalibration procedures, and maintenance access before purchase. |
| Lifecycle | Firmware and maintenance | Look for controlled firmware updates, rollback capability, configuration backup, event logs, and documented maintenance procedures. | Long-term reliability depends on the ability to address security issues, improve algorithms, and recover from failed updates. | Evaluate update mechanisms in a staging environment and confirm support duration and change-management procedures. |
| Commercial Decision | Total cost of ownership | Include anchors, tags, gateways, installation, calibration, software, connectivity, batteries, support, and replacement units. | The purchase price alone may not reflect the recurring cost of operating a location system. | Build a three- to five-year cost model using the expected site size, tag population, battery replacement rate, and support needs. |