Patent ID: 11961150
Assignee: SICHUAN FORESTRY AND GRASSLAND INVESTIGATION AND PLANNING INSTITUTE
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 7:
8. The national forest resources continuous inventory sample plot monitoring method according to claim 5, wherein specific operation steps in step (4) are as follows:
(4.1) completing identity verification of a user in a competent authority on the user layer for login;
(4.2) designating investigators and forest rangers for all inventory sample plots;
(4.3) obtaining working statuses of the communication relay apparatuses arranged in all the inventory sample plots within the last wake-up time period;
(4.4) checking whether the statuses of all the communication relay apparatuses are normal, and in response to the statuses of all the communication relay apparatuses being normal, executing step (4.11), in response to the statuses of all the communication relay apparatuses being not normal, executing step (4.5);
(4.5) issuing a patrol task to a forest ranger in a region where the status of the communication relay apparatus is abnormal, to require on-site verification on the status of the inventory sample plot;
(4.6) receiving patrolled inventory sample plot objects and arriving at a designated sample plot by the forest ranger;
(4.7) feeding back, by the forest ranger, site conditions of the designated inventory sample plot;
(4.8) determining, according to the feedback information in step (4.7), whether an investigator needs to be dispatched to update devices or resurvey, and in response to an investigator needing to be dispatched to update devices or resurvey, executing step (4.9), in response to an investigator not needing to be dispatched to update devices or resurvey, executing step (4.10);
(4.9) carrying a communication relay apparatus and a tree diameter measuring sensor by the investigator to the inventory sample plot, resurveying the sample plot according to step (1), and returning new data;
(4.10) determining a status of the current inventory sample plot according to the returned data, and updating sample plot and sample tree information;
(4.11) obtaining working statuses of tree diameter measuring sensors and tilt sensors arranged in all the inventory sample plots within the last wake-up time period;
(4.12) determining whether the statuses of all the tree diameter measuring sensors and tilt sensors are normal, and in response to the statuses of all the tree diameter measuring sensors and tilt sensors being normal, executing step (4.13), in response to the statuses of all the tree diameter measuring sensors and tilt sensors being not normal, executing step (4.5); and
(4.13) reading diameter changes of the sample tree in two successive periods, and comparing whether a difference change exceeds a normal growth range of diameter growth rates of standing trees, and in response to a difference change exceeding a normal growth range of diameter growth rates of standing trees, determining that the current data are abnormal, and executing step (4.5), in response to a difference change not exceeding a normal growth range of diameter growth rates of standing trees, terminating the process.