Network Anti-Freeze Automatic Restart Solution

I. Solution Background

In fields such as industrial automation, the Internet of Things (IoT), and remote equipment monitoring, efficient communication and stable control between devices are crucial. Currently, two core needs are prevalent in related scenarios: first, the continuous monitoring of local TCP/UDP data transmission stability, with the ability to automatically trigger device reboots upon encountering abnormalities; second, supporting remote power-on/power-off control of devices via the network, thereby enhancing operational efficiency.

The combined solution of the WE-E200 Serial Server and the RS485 Digital Input/Output Module, introduced by Hainan West Electric Technology, precisely meets the aforementioned needs through the synergistic logic of "serial-to-network protocol conversion + relay power control." This solution is suitable for various scenarios including industrial sensors, smart devices, and remote monitoring terminals, providing reliable technical support for the intelligent management and remote maintenance of equipment.

II. Product Basic Parameters

III. Product Functions

(1) Data Transmission and Processing

Supports multiple network protocols and serial port types, enabling data conversion and transmission between different devices, such as converting RS485 sensor data to UDP for uploading to the cloud, meeting the needs of real-time data acquisition and transmission. Simultaneously, supports multi-socket communication (up to 5), allowing for monitoring the TCP/UDP connection status of multiple devices concurrently, improving device management efficiency.

(2) Device Status Monitoring

1. Local Timeout Response & Abnormal Reboot

The system monitors UDP/TCP communication status in real-time. Upon detecting UDP timeout or abnormal data transmission (e.g., packet loss rate ≥5%), it controls the relay via Modbus instructions to forcibly reboot the device power (close for 5 seconds then open). Supports 1-3 automatic retries; failure triggers a fault lock. Quickly resolves disconnection issues for industrial sensors, cameras, etc., reducing manual inspection costs.

2. Remote Power Control

The host computer sends Modbus instructions forwarded by the WE-E200 to remotely control the relay, achieving device power-on/power-off. Supports batch operations for multiple devices and hierarchical permissions. Instructions are secured with AES encryption. Suitable for distributed scenarios like smart grids and security clusters, compressing fault response time from "hours" to "minutes," significantly improving operational efficiency.

(3) Security Encryption

Employs security protocols such as TLS v1.2, AES, and DES3 to encrypt data, preventing theft or tampering during transmission, ensuring data security and integrity.

IV. Product Connection Topology Diagram

V. Product Application Scenarios

(1) Remote Monitoring of Industrial Equipment

In factory production lines, collecting sensor data. The WE-E200 converts RS485 sensor data to UDP for uploading to the cloud. If the cloud times out without receiving data, it automatically reboots the sensor power supply, ensuring data collection continuity. The WE-E200 supports multi-socket communication, enabling simultaneous monitoring of TCP/UDP connection status for multiple devices. Upon detecting anomalies, it can quickly restore device connections via the relay, improving production line stability and efficiency.

(2) Smart Grid Equipment Operation and Maintenance

Used for monitoring UPS power status in substations, reading data in real-time via Modbus TCP. Automatically reboots the UPS communication module upon communication interruption, while also supporting remote manual reset, ensuring normal operation of grid equipment. The AES encryption function of the WE-E200 ensures data security during transmission. The relay's 10A capacity meets the power control needs of high-power devices, adapting to the high requirements for device reliability and security in smart grids.

(3) Security & Environmental Monitoring

Smart camera clusters connect to the LAN via the WE-E200, with relays controlling camera power. Upon detecting UDP video stream interruption, it automatically cycles reboots for faulty devices, ensuring stable operation of the security system. The Auto-IP function of the WE-E200 supports rapid networking in DHCP-less environments, facilitating security device deployment. The hardware watchdog of the relay module ensures relay control reliability, guaranteeing normal operation of devices like cameras.

(4) Other Potential Scenarios

This solution can also be applied to scenarios such as intelligent transportation equipment monitoring, smart home device management, and agricultural IoT device remote control, providing a universal solution for device intelligence and remote maintenance across different fields. By flexibly expanding the number of relay channels (up to 48 channels), it can easily scale to large-scale device cluster management, meeting the needs of projects of varying sizes.