Patent ID: 11869023
Assignee: SICHUAN PROVINCIAL INSTITUTE OF FORESTRY AND GRASSLAND INVENTORY AND PLANNING
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 5:
6. The continuous monitoring method for forest stock according to claim 1, characterized in that specific steps of the layout of the monitoring devices are as follows:
(2.1) arriving at the sample plot, measuring the sample plot, testing a signal type of the sample plot with the data collection terminal, and selecting a gateway type;
(2.2) selecting a sample tree in a center of the sample plot to lay a bracket, fixing a gateway, testing signals, and keeping the gateway turned on after success;
(2.3) connecting the data collection terminal to the gateway, setting a data collection frequency, and determining next automatic startup time and duration of the gateway and a tree diameter measurement sensor;
(2.4) selecting a location for measuring a diameter of the sample tree and fix the tree diameter measurement sensor to the tested sample tree;
(2.5) starting the tree diameter measurement sensor, and connecting the data collection terminal to the tree diameter measurement sensor while ensuring that a displayed code of the connected tree diameter measurement sensor is consistent with a label code on a shell of the tree diameter measurement sensor;
(2.6) pulling out a pull rope from a rope outlet of the tree diameter measurement sensor, winding the pull rope on the sample tree by one circle, and then buckling the pull rope into an anti-unwinding rope fixing port of the tree diameter measurement sensor;
(2.7) checking in the data collection terminal whether the diameter of the sample tree has a measured value or significantly deviates from an actual value, and if so, starting the tree diameter measurement sensor again; and after the data collection terminal is reset, pulling the pull rope again for installation;
(2.8) connecting the tree diameter measurement sensor to the data collection terminal again, and inputting, by the data collection terminal, a tree species and a gauge type;
(2.9) transmitting, by the tree diameter measurement sensor, measured values to the gateway, performing clock synchronization, and obtaining next startup time and duration of the tree diameter measurement sensor;
(2.10) in response to the tree diameter measurement sensor being in an unconnected case, automatically entering the tree diameter measurement sensor to a dormant state after a first fixed time interval;
(2.11) repeating steps (2.4)-(2.10) to complete measurement of all sample trees and installation of the tree diameter measurement sensors in the sample plot;
(2.12) transmitting, by the gateway which is the mobile communication gateway, through the mobile communication base station, the data back to the communication server and then the data is summarized into a network server of the continuous monitoring application system by the communication server; or
transmitting, by the gateway which is the Beidou short message gateway, through the satellite, the data back to the Beidou director and then the data is summarized into the network server by the Beidou director;
(2.13) disconnecting the data collection terminal from the gateway, automatically entering the gateway to the dormant state after a second fixed time interval.