/
Mining/
Specialized fields/
Quarrying and aggregatesQuarrying, measured at the neighbour’s door.
Quarries supply the stone, sand and gravel every city is built from, and they often sit close to the homes, roads and rivers they serve. The licence to operate rests on what neighbours feel and breathe: blast vibration, air overpressure, dust, noise and water. A compact, low-power network records each of them continuously and reports them in the form the permit asks for.
Plan a deploymentHow it worksStation Builder- Industry
- Mining
- Measurements
- 6
- Sources cited
- 6
Mining · Quarrying and aggregates
A quarry with neighbours
A quarry is often a working neighbour: homes, schools and roads sit within reach of its blasts, dust and noise. Its permit sets limits at those neighbours and asks for proof. Monitoring that is continuous, open and easy to read is how a quarry keeps both its permit and its neighbours’ trust.
What is measured
What a neighbour feels and breathes
Geophones and microphones at the nearest properties record ground vibration and air overpressure for every blast. Boundary monitors measure particulate matter and noise, an outfall station measures discharge turbidity and flow, and prisms or scans follow the faces and tips that the geotechnical assessment identifies.
- Instruments
- Blast monitors · Dust · Noise · Outfall water · Face survey
The base node
A small node at each receiver
Each receiver station holds a micro node that reads the monitor, processes the blast event on the spot, signs the peak values and waveform and sends them with the station’s time and position. It runs on a small solar panel and keeps every event until the network confirms delivery.
Radio and links
Simple links for a site near town
Public cellular coverage usually reaches a quarry near town, so each station carries its own modem. Where it does not, LoRaWAN joins receivers to one gateway on site, and a short microwave hop links a remote face to the office. The design favours what is cheapest to run for years.
How it works
From a blast to a report
A blast triggers every receiver station. Each node extracts the peaks and frequency, signs them with the waveform and sends them over cellular to the record. The office node assembles the report from all receivers, compares it with the permit’s limits and sends it to the people who need it.
From order to operation · Order
Scope the permit and the neighbours
The scope reads the planning conditions and permits: which properties are sensitive receivers, the limits for vibration, overpressure, dust and noise, and the discharge consent. Nexus Observatory Inc. returns a monitoring scheme, the stations each condition needs, the reporting format and a price per quarry.
Plan a deploymentFrom order to operation · Survey
Agree receiver positions
The crew visits the quarry and the nearest properties, agrees receiver positions with the operator and, where needed, with the owners, checks cellular coverage and solar exposure, and finds the outfall and face monitoring positions. Every position is recorded with photos, coordinates and the owner’s consent.
From order to operation · Permits
Monitoring that matches the conditions
The scheme is written to match the planning conditions and the discharge permit, and is submitted to the authority where it asks to approve it. Face and tip monitoring follows the quarry’s geotechnical assessment, as quarry regulations require. The scheme names each station, its method and how results are reported.
From order to operation · Build
Build compact, quiet stations
Receiver, dust, noise and outfall stations are assembled with their solar power, configured with the permit’s limits and tested on the bench. Each is enrolled with its identity and labelled for its position, ready to be fixed in an hour or so on site.
Open the Station BuilderFrom order to operation · Install
Install with the least disturbance
Stations are fixed at receivers, the boundary and the outfall, geophones coupled to the ground as the measurement method requires, and microphones and dust inlets mounted clear of local sources. Each station is checked and photographed, and the owner gets a note of what was installed.
From order to operation · Commission
Commission with a real blast
Each station proves its identity, then its first blast is compared with a reference monitor where one is available. Dust and noise readings are checked against a calibrated instrument, the outfall against a sample, and the limits from the permit are tested from station to inbox.
From order to operation · Operate
A report for every blast, a record for every day
Each blast produces a report with peak values and waveforms from every receiver, ready for the operator, the authority and the neighbour who asks. Dust, noise and discharge are visible continuously, and an exceedance arrives with its data, so the cause can be found while it can still be fixed.
From order to operation · Maintain
Keep the scheme current
Stations are recalibrated on schedule, moved when new receivers are built or faces advance, and kept within the conditions as they change. Every visit updates the record, so the annual review with the authority starts from complete data. Changes to stations are agreed with the authority before they are made.
Book field servicesData products
Reports for the operator, the authority and the street
Shotfirers and managers get a report after every blast; environmental managers see dust, noise and discharge continuously; planning authorities get records in the format their conditions set; neighbours can see an agreed public view. The same signed readings serve each audience.
See the data productsEvidence
Evidence that answers a complaint
Calibrations, positions, every blast with its waveform and every exceedance are kept as signed records. Methods follow the standards the permit cites for vibration and dust, and face monitoring follows the quarry’s geotechnical assessment, so a complaint or an audit is answered with data anyone can check.
- Drawn against
- BS 7385-2 · Quarries Regulations 1999 · Directive (EU) 2024/2881
What you get
Environmental and permit monitoring
Emissions, water quality, noise and dust monitoring for permit conditions, with traceable calibration and evidence bundles. Delivered as managed service and data licence, for industrial operators, municipalities, regulators. Scale: Site to portfolio. Service levels are written as numbers you can measure on your own dashboard.
Talk to salesNext step
Plan quarrying and aggregates 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 quarrying and aggregates. 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 contextHard-rock quarries drill and blast benches, then crush and screen the stone; sand and gravel pits dig and wash loose deposits. Most are smaller than metal mines but far closer to communities, so planning conditions commonly set limits on vibration, noise and dust at nearby properties and require a monitoring scheme. Faces and tips must stay stable, and site water leaves under a discharge permit.
Hazards
- Ground vibration and air overpressure at nearby properties
- Flyrock thrown beyond the blast area
- Dust from haul roads, crushing, screening and stockpiles
- Noise from plant and traffic
- Instability of faces and tips
- Silt-laden water leaving the site
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 vibration: peak particle velocity and frequency | At the nearest sensitive properties | Every blast | 12 |
| Air overpressure | At the same receivers | Every blast | 1 |
| Particulate matter and deposited dust | Site boundary and nearest receptors | Continuous | 3 |
| Noise | Boundary and nearest receptors | Continuous or in campaigns, as the permit sets | 4 |
| Movement of faces and tips | Faces and tips, by prisms or scanning | Scheduled surveys, continuous where the geotechnical assessment calls for it | 4 |
| Discharge water quality and flow | Settlement lagoon outfalls | Continuous turbidity, sampled as the permit sets | 56 |
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 small solar station at a receiver: a vibration and overpressure monitor or a dust and noise monitor, read by a micro node with a cellular modem.
Build a station → - 02
Site
A quarry: receiver stations at the nearest properties, boundary dust and noise, a lagoon outfall station and face monitoring, reporting to one record.
Plan a site → - 03
Fleet
Every quarry and pit of an aggregates business, monitored and reported the same way under one service.
Managed offers → - 04
Network
Aggregates businesses, planning authorities and neighbours see the same records, each with the access their agreement gives them.
The open protocol →
- 01Vibration and condition monitor
- 02Air quality monitor
- 03Acoustic sensor
- 04Water quality sonde
- 05Micro node (Nano)
- 06Cellular modem/router
- 07Solar array
- 08Pole
Radio and links
Public cellular
Quarries near towns usually have public coverage; a cellular modem in each station is the simplest and cheapest backhaul.
Radio and links
LoRaWAN
Battery stations at neighbours’ properties and around the boundary report through one gateway on site, without cables across private land.
Radio and links
Point-to-point microwave
A short microwave hop joins a remote face or a second pit to the office network.
Edge computeEach receiver station processes its own blast event, so the peak values, frequency and waveform reach the record within minutes of the blast, and the office node assembles the blast report.
PowerReceiver stations run on small solar panels and batteries, so they can be placed in a neighbour’s garden or at a property boundary without a mains connection.
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.
Quarrying and aggregates: data path
– of 06
01 Instruments Measurement with sensor identity andcalibration 02 Node – Wrap in an observation envelope with timequality– Measure quality and uncertainty, attachquality flags– Buffer locally (store-and-forward when thelink drops) 03 Backhaul Commit with transactional outbox andpublish, delivered at least once 04 Site Consumer inbox deduplicates and applieseach record once into governed data 05 Data store Governed product through API, map orexport, correction-aware 06 Products OGC SensorThings APIMQTT 5LwM2M 07 Power and structure Supplies 12 V DC to the field equipment 01 Vibration and condition monitor Analogue I/O · RS-485 · Ethernet 02 Air quality monitor SDI-12 · RS-485 · Ethernet 03 Acoustic sensor SDI-12 · RS-485 · Ethernet 04 Water quality sonde SDI-12 · RS-485 · Ethernet 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 Blast reports with peakvalues and waveforms Boundary dust and noiserecords Discharge compliance series Face and tip movementrecords Annual monitoring summary 07 Solar array RS-485 08 Pole RS-485 RS-485 RS-485 RS-485 Ethernet LTE/NR| Item | Equipment | Data ports | Protocols | Power in |
|---|---|---|---|---|
| 01 | Vibration and condition monitorAccelerometer-based vibration and temperature sensor for rotating machinery and structural condition monitoring. | Analogue I/ORS-485Ethernet | Modbus, OPC UA, MQTT 5 | 12 V DC |
| 02 | Air quality monitorParticulate and gas monitor (PM, NO2, O3, CO, SO2) for outdoor or indoor air. | SDI-12RS-485Ethernet | SDI-12, Modbus, MQTT 5, OGC SensorThings API | 12 V DC |
| 03 | Acoustic sensorSound level meter, acoustic event detector or infrasound array element. | SDI-12RS-485Ethernet | SDI-12, Modbus, MQTT 5, OGC SensorThings API | 12 V DC |
| 04 | Water quality sondeMulti-parameter sonde for temperature, conductivity, pH, dissolved oxygen and turbidity. | SDI-12RS-485Ethernet | SDI-12, Modbus, MQTT 5, OGC SensorThings API | 12 V DC |
| 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 |
| 07 | Solar arrayPV modules with charge controller sized to the site’s load and climate. | RS-485 | Modbus | — |
| 08 | PoleUtility, street or dedicated pole with clamp positions. | — | — | — |
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 the permit and the neighbours
The scope reads the planning conditions and permits: which properties are sensitive receivers, the limits for vibration, overpressure, dust and noise, and the discharge consent. Nexus Observatory Inc. returns a monitoring scheme, the stations each condition needs, the reporting format and a price per quarry.
- 02 Survey
Agree receiver positions
The crew visits the quarry and the nearest properties, agrees receiver positions with the operator and, where needed, with the owners, checks cellular coverage and solar exposure, and finds the outfall and face monitoring positions. Every position is recorded with photos, coordinates and the owner’s consent.
- 03 Permits
Monitoring that matches the conditions
The scheme is written to match the planning conditions and the discharge permit, and is submitted to the authority where it asks to approve it. Face and tip monitoring follows the quarry’s geotechnical assessment, as quarry regulations require. The scheme names each station, its method and how results are reported. 42
- 04 Build
Build compact, quiet stations
Receiver, dust, noise and outfall stations are assembled with their solar power, configured with the permit’s limits and tested on the bench. Each is enrolled with its identity and labelled for its position, ready to be fixed in an hour or so on site.
- 05 Install
Install with the least disturbance
Stations are fixed at receivers, the boundary and the outfall, geophones coupled to the ground as the measurement method requires, and microphones and dust inlets mounted clear of local sources. Each station is checked and photographed, and the owner gets a note of what was installed.
- 06 Commission
Commission with a real blast
Each station proves its identity, then its first blast is compared with a reference monitor where one is available. Dust and noise readings are checked against a calibrated instrument, the outfall against a sample, and the limits from the permit are tested from station to inbox.
- 07 Operate
A report for every blast, a record for every day
Each blast produces a report with peak values and waveforms from every receiver, ready for the operator, the authority and the neighbour who asks. Dust, noise and discharge are visible continuously, and an exceedance arrives with its data, so the cause can be found while it can still be fixed.
- 08 Maintain
Keep the scheme current
Stations are recalibrated on schedule, moved when new receivers are built or faces advance, and kept within the conditions as they change. Every visit updates the record, so the annual review with the authority starts from complete data. Changes to stations are agreed with the authority before they are made.
06Data products and integration
What it delivers, to whom, and into which systems.
Data products
- Blast reports with peak values and waveformsShotfirers, quarry managers, authorities, neighbours
- Boundary dust and noise recordsEnvironmental managers and planning authorities
- Discharge compliance seriesEnvironmental managers and regulators
- Face and tip movement recordsGeotechnical advisers and quarry managers
- Annual monitoring summaryPlanning authorities and community liaison groups
Integration
- Blast design recordsEach blast report is linked to the blast’s design, charge and timing records kept by the shotfirer.
- Planning authority reportingRecords are exported in the format and at the interval the conditions require.
- Community liaisonAn agreed public view shows recent blasts and boundary readings to neighbours.
Exchanged through OGC SensorThings API, MQTT 5, LwM2M.
07Questions buyers ask
Before you scope it.
Can neighbours see the results?
Yes, if the operator agrees. A public view can show recent blasts and boundary readings, and any neighbour can be sent the report for a blast they felt.
Do the stations need mains power?
No. Receiver and boundary stations run on small solar panels and batteries.
Does it replace our existing blast monitors?
Not necessarily. Existing monitors with a standard output can be read by the same node, and their results join the same record.
Can it help when a complaint arrives?
Yes. The record shows what each station measured at the time, so a complaint can be answered with evidence rather than opinion.
08Resources
The sources behind this page.
Public standards, regulations and guidance, cited where they apply. Each applies only where its jurisdiction or scope does.
- 130 CFR 816.67: Use of explosives, control of adverse effectsUS Office of Surface Mining Reclamation and Enforcement (eCFR)
- 2BS 7385-2: Evaluation and measurement for vibration in buildings, guide to damage levels from groundborne vibrationBritish Standards Institution
- 3Directive (EU) 2024/2881 on ambient air quality and cleaner air for EuropeEuropean Union · 2024
- 4The Quarries Regulations 1999 (SI 1999/2024)UK Government · 1999
- 5National Pollutant Discharge Elimination System (NPDES)US Environmental Protection Agency
- 6Directive 2006/21/EC on the management of waste from extractive industriesEuropean Union · 2006
09Related
Use cases and solutions.
Use caseHybrid air-quality observatory
A few reference analysers and many low-cost nodes, with co-location calibration and an open-data feed.The full use case →SolutionEnvironmental and permit monitoring
Emissions, water quality, noise and dust monitoring for permit conditions, with traceable calibration and evidence bundles.Solutions for mining →SolutionMine, plant and port site monitoring
Slope radar, tailings monitoring, dust and water, and site connectivity for operations and closure.Solutions for mining →10Mining: specialized fields
Other fields of this industry.
Specialized fieldOpen-pit mining
Slope radar, prisms and GNSS on the pit walls, private LTE or 5G for dispatch and autonomy, blast vibration and dust at the fence, on one site network.The full field →Specialized fieldUnderground hard-rock mining
Microseismic arrays, ventilation on demand, gas and refuge monitoring, people and vehicle tracking, and a private LTE or leaky-feeder backbone that follows the headings.The full field →Specialized fieldUnderground coal mining
Methane, airflow and carbon monoxide under explosion-protection rules, dust exposure, communication and tracking that survive an emergency, and methane drainage measured for safety and emissions.The full field →Specialized fieldPlacer and alluvial mining
Turbidity and sediment downstream, mercury where amalgamation is used, settling pond stability and rehabilitation, with LoRaWAN and satellite links where nothing else reaches.The full field →Specialized fieldIn-situ recovery
Wellfields that dissolve ore underground, watched through monitoring-well rings, wellhead flow and pressure, groundwater chemistry and leak detection, with every excursion caught and reported.The full field →Specialized fieldTailings storage facilities
Piezometers, inclinometers, GNSS, satellite radar and water balance for tailings dams, with trigger levels from the engineer of record and evidence aligned to the global tailings standard.The full field →Specialized fieldSeabed and marine minerals
Environmental baselines and plume monitoring for nearshore dredging and seabed mineral exploration: moored and seabed instruments, ocean-ready links and data that regulators and scientists can verify.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