BLE - AoA vs UWB pour la santé RTLS — ce qui correspond.
BLE-AoA and UWB are the two leading RTLS technologies for hospital deployments — clinical workflow, infant protection, hand-hygiene compliance, asset finding, patient elopement prevention.
The accuracy needed varies dramatically by use case, and the right choice is rarely "the more accurate one". This is the operator-level comparison for clinical engineering and IT teams choosing between them.
La hiérarchie de la précision dans le secteur de la santé
Hospital use cases stack at different accuracy tiers. Room-level: asset finding, broad workflow attribution, patient location for billing. Bed-level: infant protection, equipment association with patient, fall prevention, medication-administration record matching.
Sub-decimetre: hand-hygiene compliance with confirmed point-of-care attribution, surgical-instrument tracking. UWB delivers all three. BLE-AoA delivers room and bed comfortably; sub-decimetre is harder but possible in dense deployments.
Gestion de la batterie de balises — le facteur décisif opérationnel
Hospitals have hundreds to thousands of tagged staff, patients, beds and assets. BLE-AoA tags: 2–5 years on a coin cell. UWB tags: months to two years depending on update rate.
For a hospital fleet of 3,000 active tags, BLE-AoA's longer battery life reduces operational burden by 10× or more. Many large hospitals reject UWB on operational-overhead grounds even when accuracy is competitive.
Ajustement au cas d’utilisation
BLE-AoA wins: most asset tracking; clinical workflow attribution; bed-level infant protection (Quuppa-based systems are mainstream); broad hand-hygiene at room-level; equipment-utilisation analytics.
UWB wins: sub-decimetre hand-hygiene with confirmed point-of-care; surgical-instrument tracking; critical-care patient location with millisecond latency; high-density labour-and-delivery infant tagging.
Most hospital deployments mix both — UWB in the few zones that need it, BLE-AoA everywhere else.
Paysage des fournisseurs dans le secteur de la santé
BLE-AoA / multi-tech healthcare RTLS: Quuppa (BLE-AoA underlay), CenTrak (multi-tech: low-frequency RF + BLE + Wi-Fi; market leader in hospital RTLS), Stanley AeroScout (Wi-Fi based, healthcare-specific), Sonitor (ultrasound for bed-level certainty), Midmark RTLS.
UWB healthcare: BeWhere, Sewio (industrial-leaning but used in hospitals), Decawave-platform vendors. Most large hospital RTLS deployments are CenTrak or Stanley AeroScout for the broad footprint, with UWB or ultrasound for the few zones needing sub-decimetre.
DME et intégration clinique
Both ecosystems integrate into Epic, Cerner / Oracle Health, Meditech, Allscripts via standard interfaces (HL7 v2, FHIR, vendor-specific APIs).
Clinical workflow attribution ("who saw which patient when") requires correlating tag events with appointment data — the integration architecture matters more than the underlying radio.
We design integration in stage 1 — see /integrations/epic and /integrations/cerner-oracle-health.
Là où TRACIO recommande chacun
Default to BLE-AoA for new hospital RTLS deployments where broad coverage matters: asset finding, workflow, infant protection, room-level hand hygiene. The operational advantage of multi-year battery life is decisive at hospital scale.
Add UWB in specific zones where sub-decimetre accuracy is non-negotiable: high-acuity hand hygiene with confirmed POC, surgical-instrument tracking, critical-care location.
Consider multi-tech RTLS (CenTrak, Stanley AeroScout) when you want a single platform vendor covering the full breadth — accepting that no single radio does everything optimally.
Questions fréquemment posées
Lequel est le meilleur pour la protection des nourrissons — BLE - AoA ou UWB ?
Les deux fonctionnent. BLE - Les solutions Quuppa basées sur AoA sont courantes. UWB prend de l’avance dans des unités de travail et d’accouchement très denses où la certitude sub-décimétrique au niveau du lit est importante. La plupart des déploiements sont BLE - AoA.
Mes points d’accès Wi-Fi existants conviendront-ils pour RTLS ?
La plupart des Wi-Fi hospitaliers (Cisco, Aruba) prennent en charge le positionnement BLE au niveau de la pièce — et non le AoA en dessous du mètre.
Le sous-mètre nécessite des BLE - AoA Locators (Quuppa) ou des modèles AP améliorés. Nous dimensionnons la bonne architecture à l’étape 1.
Est-ce que CenTrak utilise BLE - AoA ou UWB ?
CenTrak utilise une pile multi-technologie propriétaire — RF basse fréquence pour la certitude, BLE et Wi-Fi pour une visibilité plus large. Ce n’est pas purement BLE - AoA ni UWB, mais un hybride optimisé pour l’hôpital.
Comment cela s’intègre-t-il à notre DME (Epic / Cerner) ?
Via HL7 v2 / FHIR et des API spécifiques aux fournisseurs dans les services de localisation Epic Rover et Cerner. Nous concevons l’intégration des DME en phase 1 — voir /integrations/epic et /integrations/cerner-oracle-health.
Quelle est la bonne séquence de déploiement ?
Typiquement : phase 1, large couverture RTLS (BLE - AoA ou multi-tech) pour la recherche d’actifs et le flux de travail ;
phase 2, ajouter des zones de haute acuité (UWB ou échographie) pour l’attribution de l’hygiène des mains, la protection du nourrisson, le suivi des instruments chirurgicaux.
Nous définissons les phases à l’étape 1 de /méthode.
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