Status: Field validation
Silo Fill Level and Volume Monitoring Software
Monitor fill level, volume and tonnage without climbing the silo.
Status: Prototype IoT and Sensors
Entsense-WX Air Quality and Noise Monitoring
Monitor air quality and changes in noise at many points across the city, at low cost.
Current status: Prototype; we are looking for pilot partners.
The situation today
Air quality today is largely measured by fixed official stations. These stations are expensive and few in number. It is hard to see point-to-point variation in a city, local pollution around industry and changes in noise.
Entsense-WX aims to close this gap with low-cost, multi-point, complementary measurement.
How it works, in four steps
Pick a step to follow the data from the field to the center.
Step 01
Sensor node
Measurement, fault check, confidence score
Step 02
LoRa / LTE-M
Sent to the center
Step 03
Central panel
All nodes on one screen
Step 04
Risk map
Alerts
Operating principle
- The node reads the sensors.
- The node performs drift and fault checks on the device and adds a confidence score to the measurement.
- Where coverage exists, it sends directly to the center via LTE-M/NB-IoT.
- Where there is no coverage or the link is lost, it relays through neighboring nodes over a LoRa mesh of at least 3 hops.
- The center stores and verifies the data and generates a risk map and alerts.
If the connection to the center is lost, the node stores at least 72 hours of data and transmits it when the connection returns.
Risk-based sampling
The measurement frequency is not fixed; it changes with the risk status. Normally measurements are infrequent; when a leading indicator is seen, it switches to high frequency within 60 seconds. Routine data reaches the center with a delay of at most 15 minutes.
Key features
- LoRa mesh network
- LTE-M / NB-IoT (planned)
- Regional risk map
- API integration
All features
The current prototype can perform the following measurements:
- PM1, PM2.5, PM4, PM10 particulate measurement
- CO and NO2
- Total volatile organic compounds (TVOC) and estimated eCO2
- Temperature, humidity and pressure
- Light
- Sound level (monitoring changes in noise level)
Rainfall, wind, soil moisture and tilt will be connected through external sensors over RS485.
Details
Only confirmed values are listed.
Technical specifications
Technical specifications
The values below show the current prototype status and the project targets separately.
| Feature | Status | Value |
|---|---|---|
| Energy | Target | At least 6 months with a small Li-Po; at least 12 months with a large Li-Po; more than 24 months with Li-Po + solar; continuous operation with PoE |
| Protection and temperature | Target | At least IP65, IK10, operating -20 / +60 °C |
| Sleep current | Target | At most 50 µA |
| Communication (GSM) | Prototype | SIM800L (2G); will move to an LTE-M/NB-IoT module |
| PM2.5 accuracy | Target | R² ≥ 0.90 on 1-hour averages after calibration next to a reference device; R² ≥ 0.80 at month 6 without calibration |
| Comparison with reference | Not done | Will be done in the field campaign |
| Data retention (node) | Target | At least 72 hours |
| Update | Planned | Remote update; OTA success target of at least 95% |
System components
| Component | Function |
|---|---|
| Sensor node | Takes the measurement, performs drift and fault checks on the device and adds a confidence score. |
| LoRa mesh | Where there is no coverage, carries data through neighboring nodes over a mesh of at least 3 hops. |
| LTE-M/NB-IoT connection | Direct transmission to the center where coverage exists (GSM in the prototype; will move to this module). |
| Center | Stores and verifies data, generates a risk map and alerts. |
| External sensors | Rainfall, wind, soil moisture, tilt; over RS485. |
Integration
Integration
Rainfall, wind, soil moisture and tilt sensors will be connected over RS485. An open interface is being left for institutional systems and municipal platforms such as digital twins.
Outputs and reporting
- Risk level (0-100, four severity levels), basis, forecast confidence and recommended action stages
- Regional risk map
- Tiered notification
- Dashboard
- Open interface (API) for institutional systems
- Alerts when thresholds are exceeded; alerts go only to institution-approved recipients
Open data publishing is not planned; data sharing depends on the protocol to be agreed with the institution.
Installation and support
Installation
Installation on existing poles is planned; no new poles will be needed. Installation time has not yet been measured and will be measured in the pilot application.
Installation time varies by product and site.
Support, maintenance and warranty
- Remote update is planned; OTA success target of at least 95%.
Data and security
- For sound measurement only the sound level is recorded; there is no speech recording.
- The company holds an ISO/IEC 27001 certificate.
- At least 72 hours of data is stored on the node.
Areas of use
- Municipalities and environmental agencies
- Monitoring of local pollution around industry
Talk to us about this product
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Talk to us about this product
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Prefer e-mail? info@entropywork.com