Building a Temperature Monitoring System
Complete guide to building an industrial temperature monitoring system with M2M gateways, sensors, and cloud integration.
How to Build a Temperature Monitoring System
Learn how to implement a complete temperature monitoring solution using M2M gateways and cloud integration.
Project Overview
This guide will help you build a system that:
- Monitors temperature from multiple sensors
- Sends data to cloud platform
- Triggers alerts when thresholds are exceeded
- Provides real-time dashboards and reports
Figure 4: System Architecture Overview
Required Components
- Hardware:
- M2M-7350 Gateway (1x)
- Temperature sensors (PT100/PT1000) (4x)
- DI-8055 Data Acquisition Module (1x)
- RS-485 cable
- Power supply (12V DC)
- Software:
- Gateway configuration utility
- Cloud platform account (AWS IoT, Azure IoT, or similar)
Step 1: Hardware Setup
Connect your components:
- Connect temperature sensors to DI-8055 analog inputs (AI0-AI3)
- Connect DI-8055 to gateway via RS-485 (A, B terminals)
- Connect gateway to network via Ethernet
- Power up all devices
Step 2: Configure Data Acquisition
Configure the DI-8055 module:
- Set Modbus slave address (default: 1)
- Configure analog inputs:
- Input type: PT100/PT1000
- Temperature range: -50°C to 150°C
- Sampling rate: 1 second
- Enable data averaging for stability
Step 3: Gateway Configuration
Configure the M2M-7350 gateway:
// Modbus RTU Settings
Port: COM1 (RS-485)
Baud Rate: 9600
Data Bits: 8
Parity: None
Stop Bits: 1
// Device Mapping
Device 1: DI-8055 (Address: 1)
Register 0: Temperature Sensor 1
Register 1: Temperature Sensor 2
Register 2: Temperature Sensor 3
Register 3: Temperature Sensor 4
// Polling Interval
Scan Rate: 5 seconds
Step 4: Cloud Integration
Connect gateway to cloud platform:
- Configure MQTT settings:
- Broker: your-cloud-endpoint.com
- Port: 8883 (secure)
- Client ID: gateway-001
- Username/Password: from cloud console
- Define data topics:
devices/gateway-001/temperature/sensor1 devices/gateway-001/temperature/sensor2 devices/gateway-001/temperature/sensor3 devices/gateway-001/temperature/sensor4 - Set publish interval: 10 seconds
Step 5: Set Up Alerts
Configure temperature thresholds:
| Sensor | Warning (°C) | Critical (°C) | Action |
|---|---|---|---|
| Sensor 1 | 75 | 85 | Email + SMS |
| Sensor 2 | 70 | 80 | |
| Sensor 3 | 75 | 85 | Email + SMS |
| Sensor 4 | 65 | 75 |
Step 6: Create Dashboard
Build visualization dashboard with:
- Real-time temperature gauges
- Historical trend charts (last 24 hours)
- Alert status indicators
- System health monitoring
🎥 System Demo Video
See the complete temperature monitoring system in action:
🎥 System Demo Video
See the complete temperature monitoring system in action:
Testing & Validation
- Verify sensor readings are accurate
- Test alert triggers with simulated temperature changes
- Confirm data is reaching cloud platform
- Validate dashboard displays correct data
Next Steps
Enhance your system with:
- Add more sensor types (humidity, pressure)
- Implement predictive maintenance using ML
- Create mobile app for remote monitoring
- Integrate with SCADA system
📥 Download Sample Configuration
Download pre-configured settings for this temperature monitoring system:
Download Configuration File