Forest dead combustible moisture online measuring device and measuring method thereof

The invention relates to a forest dead combustible moisture online measuring device and a measuring method thereof. The device comprises a mounting bracket; a half-transparent and half-reflecting mirror is arranged in the middle of the mounting bracket; a laser is arranged at the right side of the half-transparent and half-reflecting mirror in an inclined way; along a light source transmission path, the light emitted by the laser is projected onto a standard Lambert plate after passing through the half-transparent and half-reflecting mirror by means of transmission, and is then projected onto a photodetector I by means of reflection of the standard Lambert plate; along a light source reflection path, a light source emitted by the laser is projected onto a dead combustible container after passing through the half-transparent and half-reflecting mirror, and is then projected onto a photodetector II by means of reflection of the dead combustible container; the photodetector I and the photodetector II are also separately connected with a set of data processing device. The forest dead combustible moisture online measuring device can be used for substituting manual work in the open air for performing real-time monitoring for 24h; the online measuring device adopts an LORA wireless technology, can be used for postback data from a long distance with low energy consumption, and also can ensure the integrity of the data in a transmission process.