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Transport Refrigeration Networking Monitoring Solution

I. Solution Overview

1.1 Project Background

A cold chain transportation equipment enterprise focuses on the R&D and manufacturing of transport refrigeration equipment, providing customers with refrigerated transportation solutions. Cold chain transportation has strict requirements for temperature control and requires full-process monitoring and traceability.

1.2 Construction Objectives

  • Achieve remote monitoring of transport refrigeration units
  • Real-time monitoring of refrigerated compartment temperature
  • Ensure cold chain transportation quality
  • Improve fleet management efficiency

1.3 Applicable Scenarios

  • Refrigerated vehicle monitoring
  • Cold chain logistics management
  • Transport temperature traceability
  • Fleet operation management

II. Requirements Analysis

2.1 Current Equipment Status

  • Equipment types: Transport refrigeration unit, temperature sensors, GPS locator
  • Communication interfaces: 4G, GPS
  • Communication protocols: Multiple communication protocols
  • Deployment environment: Refrigerated transport vehicles
  • Scale: Multiple refrigerated vehicles

2.2 Core Requirements

  1. Temperature monitoring requirement: Real-time monitoring of refrigerated compartment temperature
  2. Remote control requirement: Remote control of refrigeration unit start/stop and temperature settings
  3. Position tracking requirement: Real-time positioning of vehicle location
  4. Alarm early warning requirement: Timely alarm for temperature abnormalities
  5. Data recording requirement: Full-process temperature data recording and traceability

III. Overall Architecture Design

This solution adopts an architecture of vehicle refrigeration unit + 4G communication + cloud platform to achieve full-process monitoring of cold chain transportation.

3.1 Four-Layer Architecture

Topology Diagram

  1. Perception Layer: Refrigeration unit controller, temperature sensors, GPS
  2. Network Layer: 4G vehicle gateway
  3. Platform Layer: Cold chain management platform, cloud platform
  4. Application Layer: Temperature monitoring, vehicle tracking, alarm management

3.2 Data Flow

Refrigeration unit/Temperature sensors → 4G gateway → Cloud platform → Cold chain transportation management center

IV. Network and Access Solution

4.1 Networking Method Selection

Adopt 4G full-network access to ensure network coverage during transportation.

4.2 Edge Gateway Selection Points

  • Supports 4G full-network
  • Supports temperature sensor access
  • Supports GPS positioning
  • Supports refrigeration unit control

V. Protocol and Data Acquisition Solution

5.1 Supported Protocols

  • Equipment protocols: Refrigeration unit control protocol
  • IoT protocols: MQTT
  • Network protocols: 4G, GPS

5.2 Northbound Protocol Support

  • Supports cold chain management platform access
  • Supports temperature data reporting

VI. Solution Highlights Summary

  1. Full-process Monitoring: Full-process temperature monitoring for cold chain transportation

  2. Real-time Early Warning: Real-time alarm for temperature abnormalities, ensuring cargo quality

  3. Remote Control: Remote control of refrigeration units, flexible temperature adjustment

  4. Full-process Traceability: Complete temperature data recording, supports traceability

  5. Fleet Management: Vehicle positioning and operation management, improving efficiency