Network Anti-Freeze Auto-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, continuously monitoring the stability of local TCP/UDP data transmission and automatically triggering device reboots upon detecting anomalies; second, supporting remote power-on/power-off operations for devices via the network, thereby enhancing operational efficiency.

The combined solution of the WE-E200 Serial Device Server and the RS485 Digital I/O Module, introduced by Hainan West-Electric Technology, accurately meets these requirements through the synergistic logic of "Serial-to-Ethernet Protocol + Relay Power Control". This solution is suitable for various scenarios including industrial sensors, intelligent devices, and remote monitoring terminals, providing reliable technical support for the intelligent management and remote maintenance of equipment.

Industrial Single-Port Serial Device Server WE-E200

II. Basic Product 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 real-time data acquisition and transmission needs. Simultaneously supports multi-socket communication (up to 5 sockets), enabling simultaneous monitoring of TCP/UDP connection status for multiple devices, improving device management efficiency.

(2) Device Status Monitoring

1. Local Timeout Response & Anomaly Reboot

The system monitors UDP/TCP communication status in real-time. Upon detecting UDP timeout or data transmission anomalies (e.g., packet loss rate ≥5%), it controls the relay via Modbus instructions to force a device power cycle (close for 5 seconds then open). Supports 1-3 automatic retries, locks the fault upon failure. Quickly restores connectivity 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 operate the relay for device power-on/off. Supports batch operations for multiple devices and hierarchical permissions. Instructions use AES encryption for security. 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

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

IV. Product Connection Topology

V. Product Application Scenarios

(1) Remote Monitoring of Industrial Equipment

Used for collecting sensor data on factory production lines. The WE-E200 converts RS485 sensor data to UDP for cloud upload. If the cloud times out without receiving data, it automatically reboots the sensor power supply, ensuring data collection continuity. The WE-E200's multi-socket support allows simultaneous monitoring of TCP/UDP connections for multiple devices. Upon detecting anomalies, it can quickly restore device connections via the relay, enhancing production line stability and efficiency.

(2) Smart Grid Equipment Operation & 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 WE-E200's AES encryption ensures data security during transmission. The relay's 10A capacity meets the power control needs of high-power equipment, adapting to the high reliability and safety requirements of smart grids.

(3) Security & Environmental Monitoring

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

(4) Other Potential Scenarios

This solution can also be applied to intelligent transportation equipment monitoring, smart home device management, agricultural IoT device remote control, and other scenarios, providing a versatile 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.