1. Application :petroleum refining, chemical industry, metallurgy, gas transportation, oil and gas storage and transportation;
2. System composition: It is composed of smart portable gas detectors, ex-proof smart watches, cloud platforms and applications;
3. Working principle: The smart portable gas detector collects gas concentration value and other data, and sends it to the ex-proof smart watch via Bluetooth. The ex-proof smart watch will receive the gas concentration value and other data and the personal health status and location information collected by itself At the same time, upload to the cloud platform through wireless network methods such as NB-IoT/2G/3G/4G/5G. The cloud platform can store and process these data. Users can view and manage the real-time platform through computer web applications or mobile phone APPs. Monitor data and historical storage data, and send control instructions to exp-proof smart watches. When the monitoring data is abnormal and an alarm is triggered, the platform can remind users in real time through application messages and monitoring screen sound and light information, and can send alarm messages or emails to designated users in real time. The ex-proof smart watch has a telephone function. When a worker wearing an ex-proof smart watch encounters an emergency, he can dial an emergency call through the one-key call for help.
4. Equipment features:
4.1 Exp-proof smart watch: GPS/Beidou/base station positioning, heart rate detection, long-term static detection, one-key call for help/phone function, timing, Bluetooth, NB-IoT/2G/3G/4G/5G.
4.2 Intelligent portable gas detector: multi-gas concentration value detection, ambient temperature value detection degree, personnel fall detection.
4.3 Cloud platform: multiple deployment methods, support cloud-cloud docking, trusted cloud, industrial Internet platform, distributed multiple backup encrypted storage, real-time reliability, support for artificial intelligence and big dataset.
4.4 Application: rich and diverse, complete functions, computer Web applications, mobile phone APP, WeChat applet, message and e-mail sending.

1. Application:construction in hazardous areas, equipment maintenance, and limited space operations;
2. System composition: It is composed of mobile gas detection and alarm devices, portable wireless alarms, cloud platforms and applications;
3. Working principle: The mobile wireless area gas detection and alarm device can collect data such as gas concentration and location information, and send it to the cloud platform through wireless network methods such as NB-IoT/2G/3G/4G/5G, through Zigbee/Lora, etc. Send real-time gas concentration value and alarm information to the portable wireless alarm via wireless network. Relevant personnel can view and manage the real-time monitoring data and historical storage data of the platform through computer Web applications or mobile phone APP. On-site staff can use portable wireless alarms. View the real-time monitoring gas concentration value and alarm status. When the platform receives alarm information, it can remind users in real time through application messages and monitoring large-screen sound and light information, and can send alarm messages or emails to designated users in real time; when the portable wireless alarm receives alarm information, it can send it out in real time Sound, light, and vibration information to remind the wearer to take necessary measures.
4. Equipment features:
4.1 Mobile gas detection and alarm device: high-precision gas detection, wireless sound and light alarm, positioning, large-capacity battery power supply, NB-IoT/2G/3G/4G/5G, Zigbee/Lora.
4.2 Portable wireless alarm: real-time reception of wireless alarm signals, sound and light vibration alarm, large-size LCD display, Zigbee/Lora.
4.3 Cloud platform: multiple deployment methods, support for cloud-cloud docking, trusted cloud, industrial Internet platform, distributed multiple backup encrypted storage, real-time reliability, support for artificial intelligence and big data.
4.4 Applications: rich and diverse, complete functions, computer Web applications, mobile apps, WeChat applets, SMS and e-mail sending.

1. Application: pipeline network monitoring, unattended monitoring, production workshop monitoring and so on.
2. System composition: point-type gas detectors, gas alarm controllers, PLCs, wireless sound and light alarms, dedicated wireless gateways, cloud platforms and applications;
3. Working principle: Point-type gas detectors can collect data such as gas concentration ​​and location information, and upload them to the cloud through wireless visual and light alarms or dedicated wireless gateways such as NB-IoT/2G/3G/4G/5G wireless networks.The platform (or the point-type gas detector is connected to the gas alarm controller through a wired way, and the gas alarm controller establishes a connection with the cloud platform through a dedicated wireless gateway). The cloud platform can store and process the received data, and the user can View and manage the real-time monitoring data and historical storage data of the platform through computer Web applications or mobile phone APPs. When the monitoring data is abnormal and an alarm is triggered, the platform can remind users in real time through application messages and monitoring large-screen sound and light information, and can send alarm messages or emails to designated users in real time. The user can also control the PLC and other devices connected to the cloud platform on site to perform corresponding actions through the command issuing function of the cloud platform.
4. Equipment features:
4.1 Wireless sound and light alarm: sound and light alarm, adapt to a variety of point gas detectors, positioning, NB-IoT/2G/3G/4G/5G.
4.2 Wireless dedicated gateway: RS485 bus, NB-IoT/2G/3G/4G/5G.
4.3 Gas alarm controller: modular structure, strong versatility, relay switch value and RS485 signal output.
4.4 Point gas detector: high-precision gas detection, stable and reliable, multiple signal output.
4.5 Cloud platform: multiple deployment methods, support cloud-cloud docking, trusted cloud, industrial Internet platform, distributed multiple backup encrypted storage, real-time reliability, support for artificial intelligence and big dataset.
4.6 Application: rich and diverse, complete functions, computer Web applications, mobile phone APP, WeChat applet, SMS and e-mail sending.