/
Education/
Specialized fields/
Safe schoolsSchools that see hazards coming.
Schools sit on floodplains, in earthquake zones and under summer heat, and they shelter communities after disasters. Sensing at the school, linked to national warnings and the school’s own drills, gives staff minutes to act, shows where buildings need checking and keeps schools open safely.
Plan a deploymentHow it worksStation Builder- Industry
- Education
- Measurements
- 4
- Sources cited
- 4
Education · Safe schools
Places that must stay safe
Schools sit on floodplains, in earthquake zones and under summer heat, and after disasters they often shelter the whole community. The school safety framework asks for safe buildings, school disaster management and drills, and minutes of warning at the school itself can protect hundreds of children.
What is measured
Shaking, water and heat
A strong-motion sensor fixed to the building records shaking. A gauge on the nearest stream or drain measures rising water, and sensors in classrooms and yards measure heat, so each school sees its own hazards rather than a regional average.
- Instruments
- Strong-motion sensor · Flood gauge · Heat sensors
The base node
Alerts the school can use
The node detects strong shaking and reports where building checks are needed, raises flood and heat alerts against thresholds agreed with the district, relays national warnings to school displays and records every drill and response. Nothing is lost when a link drops; the node keeps it.
Radio and links
Independent of the school network
Alerts and data travel over cellular, independent of the school network, so they work when it fails. A gauge on a stream away from the school reaches it over a low-power link. Each link is chosen for the place, not from a catalogue.
- Links
- Public cellular · LoRaWAN
How it works
From a rising drain to a safe dismissal
Heavy rain falls during the school day. The drain gauge beside the school climbs past its threshold; staff receive the alert and follow their plan, holding students on the upper floor and dismissing them by the safe route once the water falls.
From order to operation · Order
Scope with the district
The scope reads the district’s schools, hazards, school safety plans and warning arrangements. Nexus Observatory Inc. returns the school kit, alert design, drills support and a price per school and per year. Every assumption in the scope is written down and priced.
Plan a deploymentFrom order to operation · Survey
Survey each school
Crews visit each school with its safety lead: building type, nearest stream or drain, hot rooms and yards, assembly points and alert displays. Findings are recorded with photographs. Every finding is kept with the site record for the crews who follow.
From order to operation · Permits
School and authority approval
The school, district and disaster authority approve the kit and alert rules, and families are told what alerts mean. Every approval is kept with the school record. Approvals are tracked site by site, so nothing waits unseen. No crew goes to site before its approvals are in place.
From order to operation · Build
Build and test
Kits are assembled, calibrated, nodes enrolled with their identities and configured with thresholds and warning links. Each kit runs before it ships. Test results travel with the kit to the site. Nothing ships until the whole kit has passed its tests together.
Open the Station BuilderFrom order to operation · Install
Install and mark
Crews fix the shaking sensor to the building structure, install the flood gauge and heat sensors, mount alert displays and connect backhaul. Every part is photographed and recorded. The site record is updated before the crew leaves. Crews follow the site safety plan throughout the work.
From order to operation · Commission
Commission with a drill
Each node proves its identity. Sensors are checked against references, alerts are tested to displays and phones, and the school runs a drill with the system. Response times are recorded. Results are signed and kept with the site record. Acceptance is recorded with the owner before handover.
From order to operation · Operate
Protect and recover
Staff receive alerts and act on their plans; after shaking, the district sees which schools need building checks; in heat, outdoor activities change; and every event and drill is recorded. Reports for owners and funders come from the same record.
From order to operation · Maintain
Drill every term
Drills are repeated each term, sensors checked and recalibrated on the agreed plan, thresholds reviewed after events, and software updated in rings. Every change is kept with the school record. Spares and procedures travel with the crews. Maintenance history stays with each site for its whole life.
Book field servicesData products
For staff, districts and authorities
School staff receive hazard alerts; district facility teams receive building check lists after shaking; teachers and coaches receive heat guidance; education and disaster authorities receive drill and event records, each tied to school and time. Each product carries its site, time and quality flags.
See the data productsEvidence
Safe schools, on record
The kit supports the comprehensive school safety framework and the safe schools call of the global disaster risk framework, flood levels follow hydrological practice and heat the WMO guide. Every alert, drill and event is kept with the school record.
- Drawn against
- Comprehensive School Safety Framework 2022-2030 · Sendai Framework · WMO-No. 168 · WMO-No. 8
What you get
Sensing as a Service
Observation networks designed, installed, operated and maintained for a monthly fee: weather, hydromet, air, seismic and environmental stations, with data delivered under a licence. Delivered as managed service and data licence, for agencies, utilities, municipalities, insurers, agribusiness. Scale: Global, multi-site, per-site pricing.
Talk to salesNext step
Plan safe schools with us
Tell us the site, the measurements and the rules it answers to. We reply with a survey proposal, a design and a scope for safe schools. 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.
Plan a deploymentOpen the Station BuilderOpen the Studio
01The place and its hazards
Where it runs, and what can go wrong.
Operating contextThe comprehensive school safety framework sets out safe facilities, school disaster management and risk reduction education, and the global disaster risk framework calls for safe schools. Flood levels are gauged to hydrological practice and heat is measured to the WMO guide.
Hazards
- Floods that reach schools with students inside
- Earthquakes that damage buildings unseen
- Heat that makes classrooms unsafe
- Warnings that never reach the school
- Schools used as shelters without checks
02What must be measured
What, where, how often, and under which rules.
Each measurement names where it is taken, how often, and the public standard or regulation behind it. Numbers in the sources column open the cited source below.
| Measurement | Where | Cadence | Sources |
|---|---|---|---|
| Ground shaking | A strong-motion sensor in the school building | Continuous, events on shaking | 1 |
| Flood level near the school | A gauge on the nearest stream or drain | Every few minutes | 21 |
| Heat in classrooms and yards | Sensors indoors and outdoors | Every few minutes | 31 |
| Drills and responses | Each drill and real event | Each event | 14 |
03The observation stack
From one base unit to a network.
The same blocks at every scale: instruments and a base node, a site with its radio, a fleet run as one, and a network federated on the open protocol.
- 01
Base unit
A school kit: shaking, flood and heat sensors on a sensor hub with a small node.
Build a station → - 02
Site
A school: the kit, alert displays and the school’s warning channels.
Plan a site → - 03
Fleet
Every school of a district on one safety view, linked to emergency services.
Managed offers → - 04
Network
Districts share school safety records with education and disaster authorities.
The open protocol →
- 01Seismometer / strong-motion accelerometer
- 02Water level gauge
- 03Compact weather station
- 04Sensor and instrument gateway
- 05Micro node (Nano)
- 06Cellular modem/router
Radio and links
Public cellular
Alerts and data travel over cellular, independent of the school network.
Radio and links
LoRaWAN
A gauge on a stream away from the school reaches it over a low-power link.
Edge computeThe node detects strong shaking and reports where building checks are needed, raises flood and heat alerts against agreed thresholds, relays national warnings and records drills and responses.
PowerMains with a battery that keeps alerts working through power cuts.
04How it works
From the instrument to the product.
One observation’s path, tier by tier, with the interface on every link and a bill of materials below; then how the one node grows to a site, a fleet and federated networks.
Safe schools: data path
– of 07
01 Instruments Measurement with sensor identity andcalibration 02 Gateway 03 Node – Wrap in an observation envelope with timequality– Measure quality and uncertainty, attachquality flags– Buffer locally (store-and-forward when thelink drops) 04 Backhaul Commit with transactional outbox andpublish, delivered at least once 05 Site Consumer inbox deduplicates and applieseach record once into governed data 06 Data store Governed product through API, map orexport, correction-aware 07 Products CAP 1.2OGC SensorThings APIMQTT 01 Seismometer / strong-motionaccelerometer SDI-12 · RS-485 · Ethernet 02 Water level gauge SDI-12 · RS-485 · Ethernet 03 Compact weather station SDI-12 · RS-485 · Ethernet 04 Sensor and instrument gateway SDI-12 · RS-485 · Analogue I/O ·Ethernet · USB 05 Micro node (Nano) Ethernet · USB · Analogue I/O ·RS-485 · CAN 06 Cellular modem/router Ethernet · USB · RS-232 Site MQTT 5 with Sparkplug B Governed data store Versioned, correction-aware Hazard alerts Building check lists after shaking Heat guidance Drill and event records Ethernet · MQTT 5 SDI-12 · SDI-12 SDI-12 · SDI-12 Ethernet · MQTT 5 Ethernet LTE/NR| Item | Equipment | Data ports | Protocols | Power in |
|---|---|---|---|---|
| 01 | Seismometer / strong-motion accelerometerShort-period seismometer or strong-motion accelerometer for local earthquake and structural shaking. | SDI-12RS-485Ethernet | SEED / miniSEED streams, MQTT 5, OGC SensorThings API | 12 V DC |
| 02 | Water level gaugeRadar, pressure or float gauge for river, lake, reservoir or tide level. | SDI-12RS-485Ethernet | SDI-12, Modbus, MQTT 5, OGC SensorThings API | 12 V DC |
| 03 | Compact weather stationAll-in-one or compact station for temperature, humidity, pressure, wind and rain at a site. | SDI-12RS-485Ethernet | SDI-12, Modbus, MQTT 5, OGC SensorThings API | 12 V DC |
| 04 | Sensor and instrument gatewayData logger and gateway that reads instruments on SDI-12, RS-485, analogue and Ethernet ports and publishes observations with calibration and time. | SDI-12RS-485Analogue I/OEthernetUSB | SDI-12, Modbus, MQTT 5, OGC SensorThings API, OGC API Connected Systems, OMA LwM2M | 12 V DC, PoE |
| 05 | Micro node (Nano)Single-board or module-class node for sensor sites, gateways and low-power deployments. | EthernetUSBAnalogue I/ORS-485CAN | MQTT 5, OMA LwM2M, CoAP | PoE, 12 V DC, USB PD |
| 06 | Cellular modem/routerLTE or NR modem or router that uses a public carrier or private network as backhaul. | EthernetUSBRS-232 | 3GPP E-UTRA air interface, 3GPP NR air interface, OMA LwM2M | 12 V DC, PoE |
How it scales
01 Instruments Arbitrary qualified sensors and instruments whosemeasurements are ingested with calibration, units,geometry, time, custody and uncertainty. ×n 02 Node The minimum useful deployable unit: server, ruggedappliance, radio node, sensor gateway, satelliteterminal, AI, scientific, vehicle or virtual node. Node Node agent 03 Site The minimum independently operable localgovernance and failure domain: one or more nodesplus local network, identity, policy, evidence,storage, products and operator surfaces.SITE
Node Node Node ×n 04 Cluster An optional scale or specialisation domain forscheduling, shared storage, accelerators or datalocality.CLUSTER
×n 05 Fleet Coordinates plans, acknowledgements,convergence evidence, update campaigns andcorrection propagation across nodes and sites.FLEET
Fleet controller ×n 06 Federation An exchange of products, capabilities, events orwork across approved, independently administeredtrust domains, using explicit trust, policy,data-locality, version and correction contracts.TRUST DOMAIN
TRUST DOMAIN
TRUST DOMAIN
×n Verifier Applications Data in the field Telemetry Control Data upstream Control Data upstream Control Exchange Evidence Events Exchange- Data in the field
- MQTT 5 with Sparkplug B; connectors for LoRaWAN, OPC UA and instrument buses.
- Telemetry
- OpenTelemetry OTLP.
- Control
- TLS 1.3 with mutual authentication; protobuf messages over gRPC or HTTP/2.
- Data upstream
- At-least-once publication with repeat-safe keys over the control channel or NATS JetStream; QUIC MAY be used on lossy links.
- Evidence
- DSSE-signed in-toto statements; SLSA provenance; SCITT transparency receipts.
- Events
- Event envelopes mapped to CloudEvents 1.0; channels described in AsyncAPI 3.
- Exchange
- OpenAPI 3.1; the OGC API family; SensorThings; STAC; WIS 2.0.
05From order to operation
Every step, from the first call to a running site.
The same crew and the same record carry the work from scope to maintenance.
- 01 Order
Scope with the district
The scope reads the district’s schools, hazards, school safety plans and warning arrangements. Nexus Observatory Inc. returns the school kit, alert design, drills support and a price per school and per year. Every assumption in the scope is written down and priced. 1
- 02 Survey
Survey each school
Crews visit each school with its safety lead: building type, nearest stream or drain, hot rooms and yards, assembly points and alert displays. Findings are recorded with photographs. Every finding is kept with the site record for the crews who follow. 1
- 03 Permits
School and authority approval
The school, district and disaster authority approve the kit and alert rules, and families are told what alerts mean. Every approval is kept with the school record. Approvals are tracked site by site, so nothing waits unseen. No crew goes to site before its approvals are in place.
- 04 Build
Build and test
Kits are assembled, calibrated, nodes enrolled with their identities and configured with thresholds and warning links. Each kit runs before it ships. Test results travel with the kit to the site. Nothing ships until the whole kit has passed its tests together.
- 05 Install
Install and mark
Crews fix the shaking sensor to the building structure, install the flood gauge and heat sensors, mount alert displays and connect backhaul. Every part is photographed and recorded. The site record is updated before the crew leaves. Crews follow the site safety plan throughout the work.
- 06 Commission
Commission with a drill
Each node proves its identity. Sensors are checked against references, alerts are tested to displays and phones, and the school runs a drill with the system. Response times are recorded. Results are signed and kept with the site record. Acceptance is recorded with the owner before handover. 1
- 07 Operate
Protect and recover
Staff receive alerts and act on their plans; after shaking, the district sees which schools need building checks; in heat, outdoor activities change; and every event and drill is recorded. Reports for owners and funders come from the same record. 14
- 08 Maintain
Drill every term
Drills are repeated each term, sensors checked and recalibrated on the agreed plan, thresholds reviewed after events, and software updated in rings. Every change is kept with the school record. Spares and procedures travel with the crews. Maintenance history stays with each site for its whole life.
06Data products and integration
What it delivers, to whom, and into which systems.
Data products
- Hazard alertsSchool staff
- Building check lists after shakingDistrict facility teams
- Heat guidanceTeachers and coaches
- Drill and event recordsEducation and disaster authorities
Integration
- National warningsNational alerts are relayed to school displays.
- Emergency servicesEvent records reach emergency services.
- Facility managementBuilding check lists open inspections.
Exchanged through CAP 1.2, OGC SensorThings API, MQTT.
07Questions buyers ask
Before you scope it.
Does it replace national warnings?
No. It relays them and adds what happens at the school.
Can it tell if a building is damaged?
It shows strong shaking; engineers inspect.
What about heat?
It measures heat indoors and out and advises.
Who acts on alerts?
Staff, following the school’s own plan.
08Resources
The sources behind this page.
Public standards, regulations and guidance, cited where they apply. Each applies only where its jurisdiction or scope does.
- 1Comprehensive School Safety Framework 2022-2030Global Alliance for Disaster Risk Reduction and Resilience in the Education Sector · 2022
- 2WMO-No. 168: Guide to Hydrological PracticesWorld Meteorological Organization
- 3WMO-No. 8: Guide to Instruments and Methods of ObservationWorld Meteorological Organization
- 4Sendai Framework for Disaster Risk Reduction 2015-2030United Nations Office for Disaster Risk Reduction · 2015
09Related
Use cases and solutions.
Use caseSchool connectivity observatory
A connected school as an observatory node: backhaul, Wi-Fi, a connectivity probe and an optional weather and air-quality station.The full use case →Use caseCitizen seismology node
A compact seismograph on a network connection, registered in an open seismic data network.The full use case →SolutionSensing as a Service
Observation networks designed, installed, operated and maintained for a monthly fee: weather, hydromet, air, seismic and environmental stations, with data delivered under a licence.Solutions for education →SolutionStructural and ground-movement monitoring
GNSS, InSAR, tilt, strain and fibre sensing on bridges, dams, slopes, tailings and pipelines, with alert thresholds set by the owner.Solutions for education →10Education: specialized fields
Other fields of this industry.
Specialized fieldSchool observatories
Weather, air quality and seismic stations at schools that students run, with real data for lessons, shared with networks that can use them.The full field →Specialized fieldClassroom air and ventilation
Carbon dioxide, temperature, humidity and particle sensing in every classroom, so schools ventilate when needed, keep rooms comfortable and show parents the air is good.The full field →Specialized fieldTechnician training and qualification
Training labs with real stations, calibration benches and network equipment, where technicians learn to install, calibrate and repair observing systems and earn recognised qualifications.The full field →Bring us the site.
Plan a deployment, configure a station, model it in the Studio or talk to sales. The form names who receives your details.
Plan a deploymentStation BuilderOpen the StudioTalk to salesRequest a quote