For personnel safety protection, how is the alarm capability of intelligent gas detectors?
1, Using wireless communication technology to achieve interconnection and alarm between devices
LoRa technology networking: LoRa is a low-power, long-distance wireless communication technology that operates in the sub GHz frequency band and has the characteristics of long-distance communication, low power consumption, and multi node communication capability. In gas detection, portable gas detectors are equipped with LoRa wireless communication modules. When a device detects excessive gas concentration, it will immediately send warning information to all devices within a certain range, forming a dynamic protection network. For example, the MS600 portable gas detector from Yiyuntian can achieve early warning interconnection through LoRa technology. When there is an emergency situation at the work site or communication cannot be achieved through visual or shouting methods, operators can use health wristbands or monitoring terminals for real-time voice communication or SOS one click alarm, which is convenient for supervisors to quickly guide work, respond to emergencies, and improve work and rescue efficiency.
WiFi or GPRS communication: Some gas detectors have built-in WiFi or GPRS modules, which can upload real-time detection data to cloud platforms through WiFi networks or mobile data networks. Management personnel can view data on the cloud platform at any time through terminal devices such as computers and mobile phones. Once the gas concentration exceeds the standard, the platform will immediately send alarm information to relevant personnel through SMS, email, APP push, etc., reminding them to take emergency measures. For example, Skoson's multi in one gas detector allows users to connect with Skoson servers using on-site mobile WiFi, the built-in WiFi of the detector, or on-site WiFi, making it convenient for manufacturers to conduct remote performance testing and maintenance of the detector. At the same time, users can also achieve remote data monitoring, alarm reminders, alarm value settings, etc. through the Internet of Things platform for mobile phones and computers.
2, Linkage with the control system triggers alarms and responses
Relay linkage output: Intelligent gas detectors usually have built-in relay modules that can be linked with external devices such as fans, sound and light alarms, solenoid valves, etc. When the gas concentration reaches the preset alarm value, the detector will automatically trigger the sound and light alarm to emit a strong sound and light signal, reminding on-site personnel to pay attention to danger. At the same time, the relay action can trigger the fan to start, perform forced ventilation and air exchange, and reduce the gas concentration on site; Or control the solenoid valve to close the gas pipeline valve, cut off the source of dangerous gases, and prevent the accident from further expanding.
Integrated into DCS and other systems: In large-scale industrial production processes, intelligent gas detectors can be integrated into control systems such as distributed control systems (DCS) and safety instrumented systems (SIS) in factories. The alarm signal of the detector is connected to the control system through a hard wired connection or communication protocol. When a hazardous gas leak is detected, the control system can not only receive the alarm information, but also automatically execute corresponding safety interlock actions according to the preset program, such as emergency stop, opening the emergency ventilation system, etc., to ensure the safety of the entire production process.
3, Real time data transmission and remote monitoring
Real time monitoring and data uploading: Equipped with advanced sensors, the intelligent gas detector can monitor the concentration, temperature, humidity, and other environmental parameters of various gases in real time and accurately. These data can be transmitted in real-time to remote monitoring platforms or command centers through wireless communication networks, allowing management personnel to monitor the gas conditions at various monitoring points even when they are not on site, and to promptly identify potential safety hazards.
Remote monitoring and management: an intelligent gas detection system based on Internet of Things technology, supporting simultaneous online monitoring by multiple users. Management personnel can remotely view gas concentration heat maps, personnel positioning information, and equipment operating status in various areas through monitoring software on computers or mobile devices. Once an alarm message is received, decisions can be made quickly, such as dispatching emergency rescue forces, directing on-site personnel to evacuate, etc., to achieve real-time safety supervision of operators
