CN110969405A - Mobile GIS-based forest protection positioning and attendance checking calculation method - Google Patents
Mobile GIS-based forest protection positioning and attendance checking calculation method Download PDFInfo
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Abstract
The invention belongs to the technical field of geographic information systems; the method comprises the steps that a forest protector acquires GPS position coordinates, then carries out filtering processing and transmits the GPS position coordinates back to a server management end, an administrator positions the current GPS position coordinates of the forest protector, and a mobile terminal inserts the current GPS position coordinates after filtering processing into a track point set; and the trace point set is subjected to thinning optimization and then is transmitted back to the server management end; the management personnel extracts the patrol track belonging to the responsibility area, calculates the track mileage and the effective track duration, judges whether the attendance meets the standard or not, and then generates an attendance report; the invention has the beneficial effects that: the mobile terminal is equipped for the forest guard to position, and the patrol information is transmitted back to the server management terminal in real time by using the high-speed mobile network for decision analysis, so that the problems of low responsibility, low patrol and timely supervision of the forest guard can be effectively solved.
Description
Technical Field
The invention relates to the technical field of geographic information systems, in particular to a forest protection positioning and attendance checking calculation method based on a mobile GIS.
Background
Forest patrol is an important work of forest management and management, at least tens of thousands of base-level forest protection staff are built in many provinces of the country, and for the management of the forest protection staff, a plurality of problems exist:
(1) the first problem is how to master the real condition of the patrol of the forest maintainers. The forest patrol and protection workplaces are all in the field, the positions are not fixed, the traditional patrol and protection depends on the consciousness, forest protectors have the condition that whether the forest protectors go to the field for patrol and protection or not, and whether patrol and protection logs are filled in faithfully or not is difficult to supervise.
(2) In addition, the traditional patrol management personnel cannot comprehensively know the condition of the management and protection area in real time, and when problems occur, people should arrange to go to the site, and a decision-making scheme is difficult to accurately make when forest resource damages such as fire danger, robbery and hunting, indiscriminate reclamation and occupation are generated, so that the method is another difficult problem for forestry management and protection managers.
Disclosure of Invention
The invention provides a forest protection positioning and attendance checking calculation method based on a mobile GIS (geographic information system), which is used for solving the problems of weak responsibility, insufficient patrol and timely supervision of forest protectors.
The invention is realized by the following technical scheme:
a forest protection positioning and attendance checking calculation method based on a mobile GIS comprises the following steps of positioning forest protection personnel in real time and recording tracks:
step S101) a forest guard acquires a GPS position coordinate through a mobile terminal;
step S102) the mobile terminal carries out filtering processing on the acquired GPS position coordinate;
step S103) displaying the filtered GPS position coordinate on a map interface of a mobile terminal carried by a forest guard, and transmitting the GPS position coordinate back to a server management end, and after positioning the current GPS position coordinate of the forest guard by the server management end, executing step S104) and step S105) at the same time by the manager);
step S104) inserting the current GPS position coordinates of the forest maintainers into the track point set for generating track lines and then executing step S107);
step S105), the mobile terminal obtains the movement speed by using the current position coordinate of the forest guard and the position coordinate obtained last time, if the movement speed of the forest guard in the appointed time threshold is less than the critical speed, the forest guard is judged to be in a rest staying state, and if not, the forest guard is judged to be in a patrol movement state;
step S106) when the forest guard is positioned, the mobile terminal judges whether the duration in the residence state exceeds an early warning threshold value, and if the duration exceeds the early warning threshold value, the mobile terminal gives an alarm and flickers a screen to give a residence warning; otherwise, the mobile terminal does not warn;
step S107), when the patrol is finished, performing rarefaction optimization on the track point set by using an iterative adaptive point algorithm; the mobile terminal extracts an effective patrol track in the track point set after thinning optimization; then extracting and calculating the track mileage Li and the effective track duration Ti through an intersection cutting algorithm; judging whether the attendance on the day reaches the standard or not according to the extracted track mileage Li and the duration Ti of the effective track;
step S108) information of whether attendance meets the standard is transmitted back to a server management end, an administrator superposes the track on a map in the server management end for displaying and analyzing, and schedules an inspection tour of an adjuster according to an analysis result;
further, the acquiring the GPS location coordinates is: and acquiring a GPS position coordinate after monitoring a data stream by starting a positioning module of the mobile terminal.
Further, after the filtering process, if there is no abnormality, the process proceeds to step S103); otherwise, obtaining the movement speed by using the last acquired GPS position coordinate and the current GPS position coordinate, and if the movement speed is greater than the specified speed, discarding the movement speed by the mobile terminal and returning to the step S101 to continue reading the hardware equipment coordinate; the hardware equipment coordinates are new coordinates provided by the mobile terminal according to different positions of the forest protection personnel.
Further, the step of rarefying optimization is as follows: and taking out the GPS position coordinates of the front and rear points of the track, calculating the distance from the GPS position coordinate of each point to the GPS position coordinates of the front and rear points to obtain a linear distance, taking out the maximum distance, adding a filtering set if the maximum distance is greater than 10 m, recording subscripts, splitting the track into two sections by using the subscripts, and respectively recursively obtaining a filtering point set.
Further, the attendance calculation and statistics of the track data returned to the server management end comprise the following operations:
step S201) the manager takes the forest area satellite image and the topographic map as a base map on the server management end to finish drawing the responsibility area;
step S202), the manager issues the drawn responsibility district to a mobile terminal carried by a forest guard;
step S203) after the forest guard logs in the mobile terminal, acquiring a responsible area which is newly issued by the server management terminal for the forest guard;
step S204), the mobile terminal starts a patrol track record according to the newly issued responsibility area;
step S205) the mobile terminal performs superposition analysis on the patrol track and the responsibility district, and takes the patrol track belonging to the responsibility district as an effective patrol track;
step S206), extracting and calculating the track mileage Li and the effective track duration Ti through an intersection cutting algorithm for the effective patrol track;
step S207) judging whether the attendance on the day reaches the standard or not according to the extracted track mileage Li and the duration Ti of the effective track; accumulating all the extracted effective track mileage Li in the current day to obtain total effective track mileage L in the current day, and if L exceeds a mileage threshold value, the attendance in the current day reaches the standard; otherwise, the attendance does not reach the standard;
or accumulating the time lengths Ti of all the extracted effective tracks on the same day to obtain the total time length T of the effective tracks on the same day, and if the T exceeds a time threshold, the attendance on the same day reaches the standard; otherwise, the attendance does not reach the standard;
step S208), the mobile terminal transmits back the information whether the attendance meets the standard to the server management terminal;
step S209) adding the monitored information whether the attendance meets the standard into a message queue through a message service arranged on a server management end and storing the information in the message queue;
step S210) an attendance statistic module on the server management end generates an attendance report according to the attendance information of the forest protection personnel who have been put in storage.
Further, after the management personnel issue the responsibility area, the mobile terminal binds the issued responsibility area with a specific forest guard; the bound responsibility area is a responsibility area issued this time or last time; when the mobile terminal binds the responsibility film area, the patrol track record is started and then the effective track in the responsibility film area is extracted, or the effective track in the responsibility film area is directly extracted.
Further, the step of judging whether the attendance on the day reaches the standard according to the extracted track mileage Li and the duration Ti of the effective track is as follows:
accumulating all the extracted effective track mileage Li on the same day to obtain the effective track total mileage L on the same day, transmitting the effective track total mileage L to an attendance judging module arranged on a server management end to be compared with a mileage threshold value which is specified to reach the standard, and if the effective track total mileage L exceeds the mileage threshold value which is specified to reach the standard, judging the attendance of the forest maintainer on the same day to reach the standard by the attendance judging module;
or accumulating the durations Ti of all the extracted effective tracks on the same day to obtain the total duration T of the effective tracks on the same day, transmitting the total duration T of the effective tracks to an attendance judgment module arranged on a server management end to be compared with a standard specified time threshold, and if the total duration T of the effective tracks exceeds the time threshold, judging that the attendance of the grocers on the same day is up to the standard by the attendance judgment module;
and if the total track duration T reaches the standard or the total track mileage L reaches the standard, the server management end judges that the current attendance of the forest maintainer reaches the standard.
Further, the mobile terminal displays the information whether the attendance meets the standard on the screen and transmits the information back to the server management terminal.
Furthermore, the server management end generates an attendance report according to the type setting according to the month/season/year, and each forest keeper has the attendance number of days up to the standard, the number of days down to the standard, the total track mileage and the patrol duration information.
Compared with the prior art, the invention has the beneficial effects that:
the invention can carry out real-time monitoring and track recording on the position of the forest guard, and the real-time position and the advancing track of the personnel can be checked in the management system to supervise the post arrival situation of the personnel, thereby fundamentally avoiding the problems of falsifying and cheating the higher management department by the forest guard; the positioning coordinates are processed by adopting a filtering algorithm, so that the problem of inaccurate positioning of forest workers caused by GPS signal shielding or electromagnetic interference and the like can be effectively avoided; and the trace point set generated in the patrolling process is subjected to thinning optimization by adopting an iterative adaptive point algorithm, so that the number of trace points is reduced on the premise of ensuring accurate data and complete trace line, the trace data rendering speed can be improved, and a foundation is laid for analyzing and patrolling dead angle areas by utilizing the patrolling trace at the server management end.
According to the invention, responsibility districts can be divided for forest protection personnel, and automatic field attendance card punching is realized by performing space analysis on patrol tracks and districts, so that the problem of difficult supervision of field patrol work attendance card punching is effectively solved; the attendance report can be automatically generated according to the month, the season and the year, so that the working efficiency of the management personnel is improved; effective patrol track mileage falling in a responsibility area is automatically calculated through a spatial analysis algorithm, and whether attendance meets the standard or not is automatically and scientifically judged; the workload of the manager is greatly reduced.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
FIG. 1 is a flow chart of an embodiment of the present invention for real-time personnel positioning and trajectory recording;
fig. 2 is a flow chart of an automatic attendance calculation and statistics implementation based on a spatial analysis technique of the present invention.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1-2, a forest protection positioning and attendance checking calculation method based on a mobile GIS (geographic information system) is used for positioning forest protection personnel in real time and recording tracks, and comprises the following steps:
step S101) a forest guard acquires a GPS position coordinate through a mobile terminal;
step S102) the mobile terminal carries out filtering processing on the acquired GPS position coordinate;
step S103) displaying the filtered GPS position coordinate on a map interface of a mobile terminal carried by a forest guard, and transmitting the GPS position coordinate back to a server management end, and after positioning the current GPS position coordinate of the forest guard by the server management end, executing step S104) and step S105) at the same time by the manager);
step S104) inserting the current GPS position coordinates of the forest maintainers into the track point set for generating track lines and then executing step S107);
step S105), the mobile terminal obtains the movement speed by using the current position coordinate of the forest guard and the position coordinate obtained last time, if the movement speed of the forest guard in the appointed time threshold is less than the critical speed, the forest guard is judged to be in a rest staying state, and if not, the forest guard is judged to be in a patrol movement state;
step S106) when the forest guard is positioned, the mobile terminal judges whether the duration in the residence state exceeds an early warning threshold value, and if the duration exceeds the early warning threshold value, the mobile terminal gives an alarm and flickers a screen to give a residence warning; otherwise, the mobile terminal does not warn;
step S107), when the patrol is finished, performing rarefaction optimization on the track point set by using an iterative adaptive point algorithm; the mobile terminal extracts an effective patrol track in the track point set after thinning optimization; then extracting and calculating the track mileage Li and the effective track duration Ti through an intersection cutting algorithm; judging whether the attendance on the day reaches the standard or not according to the extracted track mileage Li and the duration Ti of the effective track;
step S108) information of whether attendance meets the standard is transmitted back to a server management end, an administrator superposes the track on a map in the server management end for displaying and analyzing, and schedules an inspection tour of an adjuster according to an analysis result;
the GPS position coordinates are acquired as follows: and acquiring a GPS position coordinate after monitoring a data stream by starting a positioning module of the mobile terminal.
After the filtering process, if there is no abnormality, the process goes to step S103); otherwise, obtaining the movement speed by using the last acquired GPS position coordinate and the current GPS position coordinate, and if the movement speed is greater than the specified speed, discarding the movement speed by the mobile terminal and returning to the step S101 to continue reading the hardware equipment coordinate; the hardware equipment coordinates are new coordinates provided by the mobile terminal according to different positions of the forest protection personnel.
The steps of the rarefaction optimization are as follows: and taking out the GPS position coordinates of the front and rear points of the track, calculating the distance from the GPS position coordinate of each point to the GPS position coordinates of the front and rear points to obtain a linear distance, taking out the maximum distance, adding a filtering set if the maximum distance is greater than 10 m, recording subscripts, splitting the track into two sections by using the subscripts, and respectively recursively obtaining a filtering point set.
The method further comprises the following steps of carrying out attendance calculation and statistics on the track data returned to the server management end:
step S201) the manager takes the forest area satellite image and the topographic map as a base map on the server management end to finish drawing the responsibility area;
step S202), the manager issues the drawn responsibility district to a mobile terminal carried by a forest guard;
step S203) after the forest guard logs in the mobile terminal, acquiring a responsible area which is newly issued by the server management terminal for the forest guard;
step S204), the mobile terminal starts a patrol track record according to the newly issued responsibility area;
step S205) the mobile terminal performs superposition analysis on the patrol track and the responsibility district, and takes the patrol track belonging to the responsibility district as an effective patrol track;
step S206), extracting and calculating the track mileage Li and the effective track duration Ti through an intersection cutting algorithm for the effective patrol track;
step S207) judging whether the attendance on the day reaches the standard or not according to the extracted track mileage Li and the duration Ti of the effective track; accumulating all the extracted effective track mileage Li in the current day to obtain total effective track mileage L in the current day, and if L exceeds a mileage threshold value, the attendance in the current day reaches the standard; otherwise, the attendance does not reach the standard;
or accumulating the time lengths Ti of all the extracted effective tracks on the same day to obtain the total time length T of the effective tracks on the same day, and if the T exceeds a time threshold, the attendance on the same day reaches the standard; otherwise, the attendance does not reach the standard;
step S208), the mobile terminal transmits back the information whether the attendance meets the standard to the server management terminal;
step S209) adding the monitored information whether the attendance meets the standard into a message queue through a message service arranged on a server management end and storing the information in the message queue;
step S210) an attendance statistic module on the server management end generates an attendance report according to the attendance information of the forest protection personnel who have been put in storage.
After the manager issues the responsibility film area, the mobile terminal binds the issued responsibility film area with a specific forest guard; the bound responsibility area is a responsibility area issued this time or last time; when the mobile terminal binds the responsibility film area, the patrol track record is started and then the effective track in the responsibility film area is extracted, or the effective track in the responsibility film area is directly extracted.
The step of judging whether the attendance on the day reaches the standard or not according to the extracted track mileage Li and the duration Ti of the effective track is as follows:
accumulating all the extracted effective track mileage Li on the same day to obtain the effective track total mileage L on the same day, transmitting the effective track total mileage L to an attendance judging module arranged on a server management end to be compared with a mileage threshold value which is specified to reach the standard, and if the effective track total mileage L exceeds the mileage threshold value which is specified to reach the standard, judging the attendance of the forest maintainer on the same day to reach the standard by the attendance judging module;
or accumulating the durations Ti of all the extracted effective tracks on the same day to obtain the total duration T of the effective tracks on the same day, transmitting the total duration T of the effective tracks to an attendance judgment module arranged on a server management end to be compared with a standard specified time threshold, and if the total duration T of the effective tracks exceeds the time threshold, judging that the attendance of the grocers on the same day is up to the standard by the attendance judgment module;
and if the total track duration T reaches the standard or the total track mileage L reaches the standard, the server management end judges that the current attendance of the forest maintainer reaches the standard.
And the mobile terminal displays the information whether the attendance meets the standard on a screen and transmits the information back to the server management terminal.
And the server management end generates an attendance report according to the typesetting according to the month/season/year, and the attendance days, the unqualified days, the total track mileage and the patrol duration information of each forest maintainer are obtained.
As shown in fig. 1, a specific embodiment of the implementation flowchart of the mobile terminal for real-time positioning and track record management of forest workers includes the following steps:
(1) step S101, GPS position coordinates acquired by a position service manager are provided through a forest guard mobile terminal hardware device.
(2) Step S102 performs filter processing on the acquired coordinates. Acquiring a previous position and a current GPS coordinate through S101 during track recording, and calculating the movement speed through the two coordinates, and if the movement speed is more than 5m/S, discarding and continuously reading the hardware equipment coordinate (the coordinate is a new coordinate provided according to different positions where the forest guard is located); if there is no exception after the filtering process, the process proceeds to step S103.
(3) Step S103, displaying the filtered coordinate position on a map interface of a handheld mobile terminal of the forest guard, and simultaneously transmitting the coordinate position back to a data center server in real time, wherein the manager can position the current position of the forest guard in a desktop-end patrol management system.
(4) Step S104 inserts the coordinates into the set of trajectory points for generating the trajectory line.
(5) Step S105, the current position and the preamble position are obtained in the same way as step S102, the movement speed is obtained through calculation, the threshold value is 0.5m/S, if the calculated speed is less than the threshold value all the time in the patrol process, the rest stay state is determined, and if the calculated speed is greater than the threshold value, the patrol movement state is determined.
(6) And step S106, on the basis of S105, judging whether the residence time exceeds an early warning threshold (the early warning threshold is set by a management system and is acquired when software is started) when the personnel are positioned in real time, and if the residence time exceeds the early warning threshold, giving an alarm and flashing a screen to warn residence.
(7) And step S107, performing thinning optimization on the track point set by using an iterative adaptive point algorithm (a front point and a rear point of the track are taken out, then the track is traversed, the distance from each point to the front point and the rear point to determine a straight line is calculated, the maximum distance is taken out, if the maximum distance is more than 10 meters, a filtering set is added, subscripts are recorded, then the track is divided into two sections by the subscripts, and filtering point sets are obtained by recursion respectively) when the patrol is finished, so as to reduce the data volume of the track as much as possible on the premise of ensuring accurate data and complete track lines.
(8) Step S108, the track data after rarefaction processing is transmitted back to the data center, and managers can overlay the tracks on a map in the patrol management system for displaying and analyzing so as to confirm patrol effect of forest protectors, analyze and mine patrol dead corner areas, and schedule and adjust patrol routes of the staff according to the analysis result.
The specific embodiment of the flow chart for the event multimedia information collection and return example comprises the following steps:
(1) step S201 is event multimedia information collection and storage management, including event location coordinates, date and time, and one or more combinations of photos, videos, voices and text descriptions.
(2) Step S202 is event feedback, and the mobile terminal transmits the collected event position coordinates, date and time, and multimedia information such as photos and videos back to the data center server.
(3) Steps S203 and S204 warehouse the event listening. And the message queue service deployed on the data center server monitors the position, track and event information returned by each forest guard, adds the position, track and event information into the message queue for sequencing, and reads the complete record from the queue according to the time sequence through the scheduling service and stores the complete record into the database.
(4) Step S205 is to browse and view the event in the management system for the manager and make a scheduling decision according to the analysis result.
The specific embodiment of the flow chart for implementing the automatic attendance calculation and statistics example comprises the following steps:
(1) step S301 and step S302 are completed for the manager at the management side. And taking the forest area satellite image and the topographic map as base maps in the management system by the management personnel, drawing the responsibility area, issuing the responsibility area to a specific forest guard, and binding the specific forest guard with the responsibility area.
(2) In step S303, after the forest guard logs in the mobile terminal, the mobile terminal system automatically polls to obtain the responsible area newly issued by the forest guard. If the distribution is still used if the latest distribution is not available, the distribution is superposed on the map for display, and the area range of the user can be clear at a glance.
(3) Step S304 is to start the patrol trace record.
(4) And step S305 and step S306 are for the end of patrol, the system performs superposition analysis on the patrol track and the responsibility fragment area, judges whether the patrol track falls in the responsibility fragment area, wherein the patrol track falls in the responsibility fragment area to be considered as effective, extracts the effective track falling in the fragment area through an intersection cutting algorithm, and calculates the track mileage Li and the duration Ti of the effective track.
(5) Step S307 is to accumulate all the extracted effective track mileage Li on the same day to obtain the total effective track mileage L on the same day, transmit the total effective track mileage L to an attendance checking judgment module to be compared with a mileage threshold value which is specified by the standard (the threshold value is built in the module and can be adjusted by developers, the same is applied below), and judge whether the total track mileage L on the same day reaches the standard or not by the module; and similarly, accumulating the time lengths Ti of all the extracted effective tracks on the same day to obtain the total time length T of the effective tracks on the same day, transmitting the total time length T of the effective tracks to an attendance judging module to be compared with a time threshold value which is regulated to reach the standard, judging whether the total time length T of the tracks on the same day is up to the standard or not by the module, and judging that the attendance of the grocers reaches the standard if the total time length of the tracks and the total mileage of the tracks meet one of the two requirements.
(6) Step S308 is to transmit the result of whether the standard is reached back to the data center.
(7) In step S309, the message service running on the server adds the monitored attendance information to the message queue and finally puts the attendance information in storage, so that the manager can check and analyze the attendance information.
(8) Step S308, the attendance statistical module of the patrol management system can pull the attendance information of the forest workers from the database, generate an attendance report according to the type setting of the month/season/year, and display the information of the standard number of the attendance days, the unqualified number of the attendance days, the total track mileage, the patrol duration and the like of each forest worker under the attendance statistical module.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by those skilled in the art that the scope of the invention herein disclosed is not limited to the particular combination of features described above, but also encompasses other arrangements formed by any combination of the above features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (9)
1. A forest protection positioning and attendance checking calculation method based on a mobile GIS is characterized by comprising the following steps:
when carrying a mobile terminal to patrol and guard, the forest guard is positioned in real time and the track record comprises the following steps:
step S101) a forest guard acquires a GPS position coordinate through a mobile terminal;
step S102) the mobile terminal carries out filtering processing on the acquired GPS position coordinate;
step S103) displaying the filtered GPS position coordinate on a map interface of a mobile terminal carried by a forest guard, and transmitting the GPS position coordinate back to a server management end, and after positioning the current GPS position coordinate of the forest guard by the server management end, executing step S104) and step S105) at the same time by the manager);
step S104) inserting the current GPS position coordinates of the forest maintainers into the track point set for generating track lines and then executing step S107);
step S105), the mobile terminal obtains the movement speed by using the current position coordinate of the forest guard and the position coordinate obtained last time, if the movement speed of the forest guard in the appointed time threshold is less than the critical speed, the forest guard is judged to be in a rest staying state, and if not, the forest guard is judged to be in a patrol movement state;
step S106) when the forest guard is positioned, the mobile terminal judges whether the duration in the residence state exceeds an early warning threshold value, and if the duration exceeds the early warning threshold value, the mobile terminal gives an alarm and flickers a screen to give a residence warning; otherwise, the mobile terminal does not warn;
step S107), when the patrol is finished, performing rarefaction optimization on the track point set by using an iterative adaptive point algorithm; the mobile terminal extracts an effective patrol track in the track point set after thinning optimization; then extracting and calculating the track mileage Li and the effective track duration Ti through an intersection cutting algorithm; judging whether the attendance on the day reaches the standard or not according to the extracted track mileage Li and the duration Ti of the effective track;
step S108) information of whether attendance meets the standard is transmitted back to the server management end, the administrator superposes the track on the map in the server management end for displaying and analyzing, and the adjustment personnel are scheduled to patrol the route according to the analysis result.
2. The forest protection positioning and attendance calculation method based on the mobile GIS according to claim 1, wherein the acquiring GPS position coordinates is: and acquiring a GPS position coordinate after monitoring a data stream by starting a positioning module of the mobile terminal.
3. The forest protection positioning and attendance calculation method based on the mobile GIS according to claim 1, characterized in that: after the filtering process, if there is no abnormality, the process goes to step S103); otherwise, obtaining the movement speed by using the last acquired GPS position coordinate and the current GPS position coordinate, and if the movement speed is greater than the specified speed, discarding the movement speed by the mobile terminal and returning to the step S101 to continue reading the hardware equipment coordinate; the hardware equipment coordinates are new coordinates provided by the mobile terminal according to different positions of the forest protection personnel.
4. The forest protection positioning and attendance calculation method based on the mobile GIS according to claim 1, wherein the rarefying optimization comprises the following steps: and taking out the GPS position coordinates of the front and rear points of the track, calculating the distance from the GPS position coordinate of each point to the GPS position coordinates of the front and rear points to obtain a linear distance, taking out the maximum distance, adding a filtering set if the maximum distance is greater than 10 m, recording subscripts, splitting the track into two sections by using the subscripts, and respectively recursively obtaining a filtering point set.
5. The groin positioning and attendance calculation method based on the mobile GIS according to claim 1, further comprising the following operation of performing attendance calculation and statistics on the track data returned to the server management terminal:
step S201) the manager takes the forest area satellite image and the topographic map as a base map on the server management end to finish drawing the responsibility area;
step S202), the manager issues the drawn responsibility district to a mobile terminal carried by a forest guard;
step S203) after the forest guard logs in the mobile terminal, acquiring a responsible area which is newly issued by the server management terminal for the forest guard;
step S204), the mobile terminal starts a patrol track record according to the newly issued responsibility area;
step S205) the mobile terminal performs superposition analysis on the patrol track and the responsibility district, and takes the patrol track belonging to the responsibility district as an effective patrol track;
step S206), extracting and calculating the track mileage Li and the effective track duration Ti through an intersection cutting algorithm for the effective patrol track;
step S207) judging whether the attendance on the day reaches the standard or not according to the extracted track mileage Li and the duration Ti of the effective track; accumulating all the extracted effective track mileage Li in the current day to obtain total effective track mileage L in the current day, and if L exceeds a mileage threshold value, the attendance in the current day reaches the standard; otherwise, the attendance does not reach the standard;
or accumulating the time lengths Ti of all the extracted effective tracks on the same day to obtain the total time length T of the effective tracks on the same day, and if the T exceeds a time threshold, the attendance on the same day reaches the standard; otherwise, the attendance does not reach the standard;
step S208), the mobile terminal transmits back the information whether the attendance meets the standard to the server management terminal;
step S209) adding the monitored information whether the attendance meets the standard into a message queue through a message service arranged on a server management end and storing the information in the message queue;
step S210) an attendance statistic module on the server management end generates an attendance report according to the attendance information of the forest protection personnel who have been put in storage.
6. The forest protection positioning and attendance calculation method based on the mobile GIS according to claim 5, characterized in that: after the manager issues the responsibility film area, the mobile terminal binds the issued responsibility film area with a specific forest guard; the bound responsibility area is a responsibility area issued this time or last time; when the mobile terminal binds the responsibility film area, the patrol track record is started and then the effective track in the responsibility film area is extracted, or the effective track in the responsibility film area is directly extracted.
7. The forest protection positioning and attendance calculation method based on the mobile GIS according to claim 5, characterized in that: the step of judging whether the attendance on the day reaches the standard or not according to the extracted track mileage Li and the duration Ti of the effective track is as follows:
accumulating all the extracted effective track mileage Li on the same day to obtain the effective track total mileage L on the same day, transmitting the effective track total mileage L to an attendance judging module arranged on a server management end to be compared with a mileage threshold value which is specified to reach the standard, and if the effective track total mileage L exceeds the mileage threshold value which is specified to reach the standard, judging the attendance of the forest maintainer on the same day to reach the standard by the attendance judging module;
or accumulating the durations Ti of all the extracted effective tracks on the same day to obtain the total duration T of the effective tracks on the same day, transmitting the total duration T of the effective tracks to an attendance judgment module arranged on a server management end to be compared with a standard specified time threshold, and if the total duration T of the effective tracks exceeds the time threshold, judging that the attendance of the grocers on the same day is up to the standard by the attendance judgment module;
and if the total track duration T reaches the standard or the total track mileage L reaches the standard, the server management end judges that the current attendance of the forest maintainer reaches the standard.
8. The forest protection positioning and attendance calculation method based on the mobile GIS according to claim 5, characterized in that: and the mobile terminal displays the information whether the attendance meets the standard on a screen and transmits the information back to the server management terminal.
9. The forest protection positioning and attendance calculation method based on the mobile GIS according to claim 5, characterized in that: and the server management end generates an attendance report according to the type setting according to the month/season/year, and each forest keeper has the attendance number of days up to the standard, the number of days not up to the standard, the total track mileage and the patrol duration information.
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