Design Of Laser Remote Monitoring System Based On OneNET Cloud Platform

High-power all-solid-state single-frequency continuous-wave green laser has been widely used in basic science research such as quantum information,quantum optics,cold atomic physics and as a pump source to achieve excellent performance of all-solid-state single-frequency continuous-wave tunable Ti:Sapphire laser for precision magnetic field measurement,atomic storage and other scientific research because of its excellent characteristics such as low intensity noise,good beam quality and narrow linewidth.In particular,the stability of the high-power all-solid-state single-frequency continuous-wave tunable Ti:Sapphire laser implemented in pumping directly determines the stability of the titanium gem laser system.At present,because the stable operation of high-power allsolid-state single-frequency continuous-wave green laser is vulnerable to environmental and other external factors,it is necessary to send professional technicians to the site from time to time for maintenance and optimal adjustment.This not only lengthens the maintenance time,but also increases the labor cost and economic cost.In order to ensure the long-term stable and reliable operation of the laser system,this paper realizes the remote real-time monitoring and management of the key parameters of the laser operation status through the form of "Internet+laser" based on the Internet of Things technology.In this paper,a laser remote monitoring system based on OneNET cloud platform is designed by combining China Mobile’s IoT open cloud platform OneNET and wireless network transmission technology.The following studies were mainly conducted.a.The overall scheme of the laser remote monitoring system is designed based on the operational characteristics of the high-power all-solid-state single-frequency continuouswave green laser.For the actual working needs of the laser remote monitoring system.The monitoring system is mainly divided into four parts:data acquisition,processing,transmission,and visualization.Users can realize remote monitoring of laser operation status through UI interface and mobile APP client.b.Hardware connection and software programming of the laser remote monitoring system was carried out.A connection between the terminal and the cloud platform is established.The system is centred on the Arduino Uno main control board,using the laser controller’s serial communication interface,achieving real-time acquisition of key parameters of the laser’s operation status,and using the ESP8266 wireless communication module to complete the data transfer between the main control board and the cloud server.Through theoretical verification and system debugging,the laser remote monitoring system designed in this paper can remotely realize the functions of real-time monitoring,threshold alarm and command issuance of laser operation parameters in various ways,which is of great significance to effectively improve the stability and reliability of high power all-solid-state single-frequency continuous-wave green laser and all-solid-state single-frequency continuous-wave tunable Ti:Sapphire laser.