The system integrates a mid-infrared spectrometer, BeiDou navigation, Micro meteorl ogical system, AI imaging, and temperature control into a unified mobile platform mounted on a vehi-cle.Operating along municipal roads with natural gas pipelines, it conducts rapid mobile patrols while performing dual gas samplings per second. This enables real-time detection of methane and ethane concentration fluctuations in ambient air, allowing for precise identificatio of natural gas leaks.
The BeiDou navigation system can provide accurate map positioning data and trajectory records. Combined with the wind speed and direction data from the micro meteorl ogical system , the system algorithm can accurately mark the location of the suspected leakage point.
The system comprises a methane/ethane analyzer (hereinafter referred to as the analyzer), a BeiDou high-precision positioning module, an ultrasonic anemometer, and proprietary leak detection software. It can display a geographic information map showing the detection location and gas concentrations in real-time.
The system utilizes mid-infrared laser spectroscopy technology. Methane absorption in the mid-infrared region is 200 times stronger than in the near-infrared, and ethane absorption is 6000 times stronger. The detection chamber is mirrorless, robust, and compact, achieving a 13m absorption path length within an extremely small volume (60cc). This enables ultra-high sensitivity, fast response time, and low power consumption. The filter is externally mounted for easy replacement, resulting in low operating costs.
The system simultaneously detects methane and ethane concentrations, calculates the correlation coefficient, determines the gas type, and effectively reduces false alarms.
The system displays a real-time detection map containing information such as the route, gas concentration, anomaly alerts, and AI imaging, allowing users to grasp the complete situation at a glance. The upgraded version can distinguish interference sources from CNG/LNG vehicle fuel.