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Chaque dose gardée au froid, chaque heure enregistrée.

Les vaccins se gâtent quand les réfrigérateurs tombent en panne, que les coupures de courant durent trop ou que les portes restent ouvertes. La surveillance à distance de la température de chaque réfrigérateur, avec l’état de l’alimentation et de la porte, alerte à temps soignants et techniciens et donne aux programmes l’historique de température de chaque dose.

Industrie

Humanitaire

Mesures

4

Sources citées

4

1. Humanitaire · Chaîne du froid des vaccins et médicaments

   A fridge between a dose and a child

   Vaccines spoil when refrigerators fail, power cuts last too long, doors are left open or freeze-sensitive vaccines freeze. In many clinics a failure is found days later. Remote monitoring lets health workers and technicians act in time and gives the programme a temperature history for every fridge.

2. Ce qui est mesuré

   Temperature, power and doors

   A logger inside every refrigerator and freezer records temperature every few minutes. Door sensors record openings during busy clinics, and power meters show whether mains, solar or battery is feeding the fridge, so a fault can be told from a power cut.

   Instruments

   Temperature loggers · Door sensors · Power meters

3. Le nœud de base

   Excursions caught early

   The node checks every reading against the fridge’s safe range, raises heat and freezing alarms with their duration, predicts how long a fridge will hold during a power cut and keeps the full history when links fail, sending it when they return.

4. Radio et liaisons

   Alarms to the right phone

   Most clinics have some coverage, so alarms reach the health worker and the district technician by cellular. Clinics beyond coverage send their alarms by satellite. Temperature histories reach the programme’s logistics system through the same path, with nothing for health workers to upload.

   Liaisons

   Réseau mobile public · Satellite

5. Comment ça marche

   From a failing fridge to safe vaccines

   On a Friday evening a clinic fridge’s temperature starts to climb while power is normal. The node raises an alarm; the health worker moves the vaccines to a cold box, and the district technician arrives on Saturday with a replacement part. Every dose’s temperature history is recorded.

6. De la commande à l’exploitation · Commande

   Scope the cold chain

   The scope reads the programme’s facilities, refrigerator types, power at each, supply chain levels and the latest vaccine management assessment. Nexus Observatory Inc. returns monitoring per facility, alert routing, technician workflow, training and a price per fridge and per year.

   Planifier un déploiement

7. De la commande à l’exploitation · Relevé

   Survey clinics and depots

   Crews visit representative facilities with programme staff: refrigerator models and power, solar systems, where loggers and door sensors go, who responds to alarms, and coverage for backhaul. Findings set the kit for each facility type. Findings shape the kit for each site before anything is built.

8. De la commande à l’exploitation · Autorisations

   Programme approvals

   The immunisation programme approves the monitoring devices against its prequalification policy, agrees who receives alarms at each level, and sets data sharing with partners. Every approval is kept with the facility record. No crew goes to site before its approvals are in place.

9. De la commande à l’exploitation · Fabrication

   Build and configure

   Loggers are checked against a reference thermometer, nodes are configured with each fridge’s safe range and the alarm routing, enrolled with their identities and tested with door sensors and power meters before they ship to the district stores. Nothing ships until the whole kit has passed its tests together.

   Ouvrir le configurateur de stations

10. De la commande à l’exploitation · Installation

    Install with health workers

    Crews and district technicians fit loggers in each refrigerator, door sensors and power meters, mount the node and backhaul, and train health workers to read the display and acknowledge alarms. Every fridge is photographed and recorded. Crews follow the site safety plan throughout the work.

11. De la commande à l’exploitation · Mise en service

    Commission with a test alarm

    Chaque nœud prouve son identité. Logger readings are compared with a reference thermometer, a controlled door opening and power cut test the alarms, and alerts are acknowledged by the health worker and the district technician before the facility enters service.

12. De la commande à l’exploitation · Exploitation

    Respond to every excursion

    District logisticians see every fridge in the district, its temperature, power and alarms. Technicians are sent to failing fridges first, vaccines are moved before they spoil, and every excursion and response is recorded for the programme. Every alert and action is kept on the record.

13. De la commande à l’exploitation · Maintenance

    Repair and review

    Technicians repair fridges from alarm history and power data, loggers are checked against references on the agreed plan, software updates arrive remotely, and excursion records feed the programme’s next vaccine management assessment. Every change is kept with the facility record.

    Réserver des services sur le terrain

14. Produits de données

    For health workers and logisticians

    Health workers and district technicians receive excursion alarms; district and national logisticians receive cold chain dashboards; programme managers and partners receive equipment performance records; vaccine management assessors receive the temperature history of every facility, each tied to the fridge and the time.

    Voir les produits de données

15. Preuves

    Prequalified, and assessed

    Refrigerators and temperature monitoring devices follow the international performance specifications for immunisation equipment, off-grid power follows the rural electrification specifications, and records support the effective vaccine management assessment. Every reading, excursion and response is signed and kept with its facility, ready for the assessors.

    Référentiels

    WHO PQS E003 · WHO PQS E006 · IEC TS 62257 · Effective Vaccine Management (EVM) 2.0

16. Ce que vous obtenez

    Détection en tant que service

    Des réseaux d’observation conçus, installés, exploités et entretenus moyennant des frais mensuels : stations météorologiques, hydrométéorologiques, de qualité de l’air, sismiques et environnementales, avec données livrées sous licence. Fourni sous forme de service géré et licence de données, pour agencies, utilities, municipalities, insurers, agribusiness. Scale: Global, multi-site, per-site pricing.

    Parler aux ventes

17. Étape suivante

    Planifier avec nous : chaîne du froid des vaccins et médicaments

    Tell us the site, the measurements and the rules it answers to. We reply with a survey proposal, a design and a scope for vaccine and medicine cold chain. An engineer replies with a survey proposal and a scope, and the plan grows from one site to the network you need, at your pace.

    Planifier un déploiementOuvrir le configurateur de stationsOuvrir le Studio

01Le lieu et ses dangers

Où il fonctionne, et ce qui peut mal tourner.

Operating contextImmunisation programmes use refrigerators and temperature monitoring devices prequalified against international performance specifications, and the effective vaccine management initiative assesses every level of the supply chain. Many clinics run solar direct-drive refrigerators off grid, and failures are often found days later.

Dangers

• Refrigerator failures found days later
• Power cuts that outlast a fridge’s hold-over
• Freezing that destroys freeze-sensitive vaccines
• Doors left open during busy clinics
• Technicians far away with no warning of failure

02Ce qu’il faut mesurer

Quoi, où, à quelle fréquence, et selon quelles règles.

Chaque mesure indique où elle est prise, à quelle fréquence, et la norme ou la réglementation publique qui la fonde. Les numéros de la colonne des sources ouvrent la source citée plus bas.

03La pile d’observation

D’un module de base à un réseau.

Les mêmes briques à chaque échelle : des instruments et un nœud de base, un site avec sa radio, une flotte exploitée comme un tout, et un réseau fédéré sur le protocole ouvert.

1. 01

   Unité de base

   A fridge point: a remote temperature logger and door sensor with a power meter on a small node.

   Build a station →
2. 02

   Site

   A facility: every refrigerator at a clinic or depot on one node with cellular or satellite backhaul.

   Plan a site →
3. 03

   Parc

   Every facility of a district or country watched as one cold chain, with one view for logisticians and technicians.

   Managed offers →
4. 04

   Réseau

   Programmes and partners share cold chain records and equipment performance through open standards.

   The open protocol →

• 01Compteur d’énergie et de qualité de l’onde
• 02Micronœud (Nano)
• 03Modem/routeur cellulaire
• 04Terminal plat LEO
• 05Champ solaire

Radio et liaisons

Réseau mobile public

Most clinics have some coverage; alerts go to health workers’ phones by cellular.

Radio et liaisons

Satellite

Clinics beyond coverage send alarms by satellite.

Edge computeThe node checks every reading against the safe range, alerts on heat and freezing excursions with their duration, predicts hold-over during power cuts and keeps the full temperature history even when links fail.

PowerLoggers carry their own batteries; the node runs from the clinic’s solar or mains supply with a battery that outlasts long cuts.

04Comment ça marche

De l’instrument au produit.

Le parcours d’une observation, niveau par niveau, avec l’interface de chaque liaison et une nomenclature en dessous ; puis comment ce nœud devient un site, une flotte et des réseaux fédérés.

05De la commande à l’exploitation

Chaque étape, du premier appel à un site en service.

La même équipe et le même dossier portent le travail, du cadrage à la maintenance.

1. 01 Order

   Scope the cold chain

   The scope reads the programme’s facilities, refrigerator types, power at each, supply chain levels and the latest vaccine management assessment. Nexus Observatory Inc. returns monitoring per facility, alert routing, technician workflow, training and a price per fridge and per year. 4

2. 02 Survey

   Survey clinics and depots

   Crews visit representative facilities with programme staff: refrigerator models and power, solar systems, where loggers and door sensors go, who responds to alarms, and coverage for backhaul. Findings set the kit for each facility type. Findings shape the kit for each site before anything is built.

3. 03 Permits

   Programme approvals

   The immunisation programme approves the monitoring devices against its prequalification policy, agrees who receives alarms at each level, and sets data sharing with partners. Every approval is kept with the facility record. No crew goes to site before its approvals are in place. 1

4. 04 Build

   Build and configure

   Loggers are checked against a reference thermometer, nodes are configured with each fridge’s safe range and the alarm routing, enrolled with their identities and tested with door sensors and power meters before they ship to the district stores. Nothing ships until the whole kit has passed its tests together. 1

5. 05 Install

   Install with health workers

   Crews and district technicians fit loggers in each refrigerator, door sensors and power meters, mount the node and backhaul, and train health workers to read the display and acknowledge alarms. Every fridge is photographed and recorded. Crews follow the site safety plan throughout the work.

6. 06 Commission

   Commission with a test alarm

   Chaque nœud prouve son identité. Logger readings are compared with a reference thermometer, a controlled door opening and power cut test the alarms, and alerts are acknowledged by the health worker and the district technician before the facility enters service. 1

7. 07 Operate

   Respond to every excursion

   District logisticians see every fridge in the district, its temperature, power and alarms. Technicians are sent to failing fridges first, vaccines are moved before they spoil, and every excursion and response is recorded for the programme. Every alert and action is kept on the record. 4

8. 08 Maintain

   Repair and review

   Technicians repair fridges from alarm history and power data, loggers are checked against references on the agreed plan, software updates arrive remotely, and excursion records feed the programme’s next vaccine management assessment. Every change is kept with the facility record. 4

06Produits de données et intégration

Ce qu’il fournit, à qui, et dans quels systèmes.

Produits de données

• Excursion alarmsHealth workers and district technicians
• Cold chain dashboardsDistrict and national logisticians
• Equipment performance recordsProgramme managers and partners
• Temperature history by facilityVaccine management assessors

Intégration

• Logistics information systemTemperature and alarm records reach the programme’s logistics system.
• MaintenanceFailing fridges open repair tasks for technicians.
• PartnersEquipment performance is shared with partners who supply refrigerators.

Exchanged through MQTT, OGC SensorThings API, GS1.

07Questions des acheteurs

Avant de cadrer votre projet.

Does it replace prequalified loggers?

It uses devices that meet the programme’s prequalification policy.

What about solar fridges?

Solar supply is monitored with the fridge.

Who gets the alarm?

Routing is set by the programme, usually the health worker and the district technician.

Does it work without coverage?

Satellite carries alarms from clinics beyond coverage.

08Ressources

Les sources de cette page.

Normes, réglementations et lignes directrices publiques, citées là où elles s’appliquent. Chacune ne s’applique que dans sa juridiction ou son champ.

1. 1WHO PQS E006: Temperature monitoring devicesWorld Health Organization
2. 2WHO PQS E003: Refrigerators and freezers for storing vaccinesWorld Health Organization
3. 3IEC TS 62257: Renewable energy and hybrid systems for rural electrificationInternational Electrotechnical Commission
4. 4Effective Vaccine Management (EVM) 2.0World Health Organization and UNICEF

09Voir aussi

Cas d’usage et solutions.

10Humanitaire : domaines spécialisés

Les autres domaines de cette industrie.

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