OPTIMAL DESIGN OF SAFETY CORRIDOR VIOLATION WARNING SYSTEM BASED ON LASER SENSOR AND LORA COMMUNICATION

Abstract

Safety corridor violation warning is essential in many areas such as high voltage electricity, traffic and security. Several solutions for safety corridor violation warning have been proposed and tested. However, these solutions face some limitations such as high investment costs and difficulty in deploying large-scale applications. This study proposes an optimal design for the safety corridor violation warning system through the selection of sensor, communication, and power supply. The system consists of a central station connected to monitoring stations by LoRa communication with a maximum distance of up to 1.5 km. At the monitoring station, a retro-reflective laser sensor is used to detect violations within 300 m. The central station receives and sends the status of the monitoring stations to the cloud service for remote access by the users. In addition, the central station also sends an email automatically to the users and stores information when a violation occurs. The monitoring stations and the central station are powered by solar energy, so the system is easy to implement for practical applications, even in places where there is no electricity grid.