Wireless Stockyard Temperature Monitoring System
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Wireless Stockyard Temperature Monitoring System Design Plan
(Applicable to bulk material stockyards such as coal, ore, grain, etc.)
I. System Architecture
II. Key Technologies and Selection
The dedicated temperature measurement cable for the wireless stockyard temperature detection terminal is customized in length according to customer requirements. The cable contains multiple temperature sensors and is reinforced with a 6–8 mm thick steel wire for tensile strength, impact resistance, and increased durability. The temperature sensors can be customized to any length. A single stockyard temperature detection terminal can monitor up to 125 points, measuring the internal temperature of the material pile at different locations based on the cable layout.
1. Sensor Type Comparison
| Type | Applicable Scenarios | Advantages | Disadvantages |
|---|---|---|---|
| PT100+LoRa | Coal/grain piles (<300°C) | High accuracy (±0.5°C) | Slower response (1–2s) |
| Thermocouple+NB-IoT | Metal ore piles (>600°C) | High temperature resistance, fast response (<100ms) | Requires cold junction compensation |
| Infrared Wireless Sensor | Surface temperature monitoring | Non-contact, no installation required | Highly affected by dust |
2. Anti-Interference Design
- Frequency Band Selection: 470MHz (China LoRa license-free band)
- Frequency Hopping Technology: Avoids co-channel interference
- EMC Protection: Magnetic ring filtering installed on sensor circuit boards
3. Power Supply Solution
- Lithium Battery + Solar: Suitable for areas without power supply (battery life ≥3 years)
- Industrial 24V Power Supply: For fixed monitoring points
III. Deployment Plan
1. Sensor Layout
- Deep Burial Type:
- Vertical spacing 5m, depth 1.5–3m (depending on pile height)
- Uses 316 stainless steel probe rods (corrosion-resistant)
- Surface Type:
- Installed on brackets at the edge of the material pile (to avoid mechanical damage)
2. Network Optimization
- Signal Testing: Use LoRa RSSI detection tools to adjust gateway positions
- Redundancy Design: Deploy dual gateways in critical areas
3. Typical Configuration List
| Equipment | Model Example | Quantity/10,000㎡ |
|---|---|---|
| Wireless Temperature Sensor | Deming Electronics IDM-10 | 50 |
| LoRa Gateway | Deming Electronics CM-2000 | 2 |
| Cloud Platform | Private IoT Platform | 1 |
IV. System Advantages
- No Wiring: Avoids cable damage from material movement
- Early Warning Function: Triggers spontaneous combustion alert when temperature gradient exceeds 5°C/h
- Scalability: Can integrate humidity and CO concentration monitoring
V. Implementation Case
- A Coking Plant Coal Yard:
- Deployed 120 wireless sensors, covering 80,000㎡
- Reduced manual inspection frequency by 70%, preventing over 2 million RMB in annual losses from spontaneous combustion
For customized solutions, please provide stockyard dimensions, material type, and temperature threshold requirements.
| Industry Category | |
|---|---|
| Product Category | |
| Brand: | 德明電子 |
| Spec: | ＮＢ-ＩＯＴ |
| Stock: | |
| Origin: | China / Inner Mongolia / Baotoushi |
