CN117202103B - Mine operation personnel tracking, positioning and analyzing system based on wireless sensor - Google Patents
Mine operation personnel tracking, positioning and analyzing system based on wireless sensor Download PDFInfo
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Abstract
The invention belongs to the field of tracking, positioning and analyzing of mine operators, and particularly discloses a wireless sensor-based tracking, positioning and analyzing system for mine operators. The safety state of the activity track of the operator is monitored and analyzed through the wireless sensor equipment, the activity danger of the operator outside the working area is timely found, when the operator is found to enter the dangerous area, an alarm is immediately sent out, and timely rescue and protection are provided for the operator, so that the safety of the working place is greatly improved.
Description
Technical Field
The invention belongs to the field of tracking, positioning and analyzing of mine operators, and relates to a wireless sensor-based tracking, positioning and analyzing system for mine operators.
Background
The mine operation environment is complex, the danger is high, operators are often faced with various potential risks, the wireless sensor-based positioning system can collect activity data of the operators, accident hidden trouble and emergency can be found in time through real-time tracking and analysis of the positioning data of the operators, and personnel safety guarantee is provided.
The existing positioning analysis of mine personnel is more focused on analyzing the moving track and the moving range of the miners in the mine inner area, ignoring the route moving condition of the miners outside the working area to a certain extent, and has the following defects: 1. the existing positioning system mainly focuses on the position and the activity condition of operators in a mine, lacks of comprehensive understanding on the action track of the operators outside a working area, and cannot accurately analyze the paths and the frequency of the operators in each layout area of the mine, so that the frequently-occurring position information of the operators cannot be obtained, the movement behaviors of the operators in the areas cannot be effectively analyzed, and blind spots are brought to management of the layout paths of the mine.
2. The existing mine worker safety monitoring system mainly focuses on the safety condition of miners in a mining field working area, such as monitoring of parameters including gas concentration, temperature, humidity and the like, and means such as personnel positioning and video monitoring are used for real-time monitoring and management, but has certain defects in the aspects of risk early warning and emergency rescue outside the mining field working area. Since the coverage of current monitoring systems is mainly limited to specific areas of the mine, effective monitoring and analysis of the activities of miners outside the work area is not possible. Once an accident or emergency occurs to a miner, an alarm cannot be given in time and rescue is performed, which may cause further deterioration of the situation.
Disclosure of Invention
In view of this, in order to solve the problems set forth in the background art, a mining worker tracking, positioning and analyzing system based on a wireless sensor is now proposed.
The aim of the invention can be achieved by the following technical scheme: the invention provides a mine operator tracking, positioning and analyzing system based on a wireless sensor, which comprises: the mine operation area dividing module is used for acquiring area characteristic information of each layout area of the appointed mine, numbering the layout paths of each adjacent layout area and marking the layout paths as each layout path.
And the personnel activity path acquisition module is used for acquiring the activity path of each worker in real time according to the wireless sensor equipment worn by each worker.
And the personnel activity path analysis module is used for analyzing the activity path of each worker, so as to analyze the activity rule index of each worker on each sub-activity road section.
The path expansion judging module is used for evaluating expansion demand coefficients of all the layout paths and further analyzing the expansion adjustment feasibility of all the layout paths.
The safety monitoring analysis module is used for evaluating the safety coefficient of the moving track of each worker and further analyzing whether each worker is in a safety state.
The database is used for storing the record time of each worker passing through each sub-activity road section on each working day, storing each history offset event, the total number of workers passing through each layout path on each working day and storing the dangerous road section mark graph of the appointed mine.
And the early warning display terminal is used for establishing a visual early warning platform, displaying the positions and the activity conditions of each operator in and out of the working area in real time, and sending an alarm to the background terminal when a certain operator is in an unsafe state.
In a preferred embodiment, the region characteristic information includes a label type and a region position.
In a preferred embodiment, the step of analyzing the movement path of each worker includes: are respectively arranged withThe position of the area corresponding to the area is used as a demarcation point to obtain the activity path of each operator between each adjacent layout area, and the activity path is marked as each sub-activity road section, so that the activity offset area and the farthest offset distance of each operator when the operator passes through each sub-activity road section on the current working day are analyzed and respectively marked as S ix 、L ix I is the operator number, i=1, 2,..m, x is the sub-activity road segment number, x=1, 2,..z.
From analytical formulasObtaining the offset coefficient delta of each worker when each sub-activity road section is passed by the current working day ix Wherein S 'and L' are respectively set reference offset area and reference distance,the set offset area and the offset distance correspond to the offset duty ratio weights respectively.
In a preferred embodiment, the method for analyzing the activity rule index of each worker on each sub-activity road section is as follows: extracting the record time t of each worker passing each sub-activity road section on each working day in the set monitoring period from the database ihx H is a workday number, h=1, 2,..y.
Based on the offset coefficient of each worker when the worker passes through each sub-activity road section on the current working day, the offset coefficient of each worker when the worker passes through each sub-activity road section on the working day is obtained, and the maximum offset coefficient and the minimum offset coefficient of each worker when the worker passes through each sub-activity road section on the working day are extracted and respectively recorded as delta ix (max) 、δ ix (min) 。
Calculating the activity rule index of each worker on each sub-activity road sectionWherein delta' is a set allowable value of the offset coefficient, R is a set constant, 0 < R < 1, and y is the number of specified workdays.
In a preferred embodiment, the evaluation mode for evaluating the expansion demand coefficient of each layout path is as follows: when the deviation coefficient of a worker passing through a certain sub-activity road section on a certain working day is larger than or equal to the set deviation coefficient, the activity information of the worker passing through the sub-activity road section on the working day is recorded, and the historical deviation event is marked.
Extracting each historical offset event in the set monitoring period from a database, matching a sub-active road section corresponding to each historical offset event in the set monitoring period with each layout path, analyzing the occurrence frequency of the offset event of each layout path in the set monitoring period and the offset repetition rate of operators of each layout path in the set monitoring period according to the matching, and marking the offset event and the offset repetition rate as kappa respectively j 、ρ j J is a routing path number, j=1, 2,..n.
Calculating deviation compensation influence factors corresponding to expansion demand coefficients of each layout path by combining the activity rule indexes of each worker on each sub-activity road section
Calculating expansion demand coefficients of each layout pathWherein, kappa ', rho' are respectively corresponding threshold values of the occurrence frequency of the offset event and the offset repetition rate of the operator, beta 1 、β 2 The duty ratio weights are set correspondingly for the occurrence frequency of the offset event and the offset repetition rate of the operator, and e is a natural constant.
In a preferred embodiment, the worker offset repetition rate calculation mode of each layout path in the set monitoring period is as follows: and carrying out offset grade division on the offset coefficient of the sub-active road sections to obtain the offset coefficient range of the sub-active road sections corresponding to each offset grade, and further obtaining the offset grade corresponding to the offset coefficient of each worker when passing through each sub-active road section on each working day.
Counting the number F of persons passing through the same deviation grade of each sub-active road section on each working day xh 。
Because the number of the sub-active road section and the number of the layout path refer to the road sections in the same area, the number of the sub-active road section and the number of the layout path are recorded to be the same, and the same deviation class personnel number F passing through each layout path on each working day is obtained jh ＝F xh 。
According to the calculation formulaObtaining the operator deviation repetition rate rho of each layout path in a set monitoring period j Wherein F is jh 0 Expressed as the total number of people passing through the h layout path on the j-th working day, and v is expressed as a set deviation influence factor.
In a preferred embodiment, the step of analyzing the expansion adjustment feasibility of each layout path includes: based on the expansion demand coefficients of the distribution paths, the distribution paths with the expansion demand coefficients larger than the set expansion demand coefficients are obtained and recorded as the paths to be expanded, and further the expansion demand areas of the paths to be expanded are obtained.
Extracting dangerous road section marking graphs of the appointed mine from the database, matching the expansion demand areas of the paths to be expanded with the dangerous road section marking areas in the dangerous road section marking graphs of the appointed mine, and expanding and adjusting the paths to be expanded if the expansion demand areas of the paths to be expanded are outside the dangerous road section marking areas in the dangerous road section marking graphs of the appointed mine.
In a preferred embodiment, the action track safety factor evaluation mode of each worker is as follows: matching the movable paths of the operators with dangerous areas in the dangerous road section marking graphs of the appointed mine, acquiring the marking point position state of the operators in the movable path process in real time if the movable paths of the operators are in a dangerous area in the dangerous road section marking graphs of the appointed mine, acquiring the distance between the marking point position of the operators and the dangerous areas when the marking point position state is in a static state within a preset time, and screening out the marks of the operatorsThe dangerous distance with the nearest point position is marked as S 0 。
Acquiring stationary state holding time T of mark point position 0 ToAs the risk factor of the worker's movement path, l is the set risk factor influence correction factor,/>T' is the preset time corresponding duration of the preset reference value and the static state maintaining duration of the dangerous distance respectively.
When the marking point position state is in a non-static state within a preset time, the dangerous coefficient of the moving path of the operator is recorded asFurther obtain the risk coefficient of each worker's activity path +.>Or->
In a preferred embodiment, the step of analyzing whether each worker is in a safe state includes: the wireless sensor equipment worn by each operator is provided with a sensor device, the physiological indicators of each operator are monitored in real time, the physiological indicators comprise heart rate, body temperature and blood pressure, the physiological indicator change curve of each operator in the monitoring time period is obtained, the physiological indicator change curve peak value of each operator is extracted, and the physiological health coefficient phi of each operator is calculated i 。
Will phi i 、Substitution formula->Calculating potential safety hazard assessment coefficients lambda of all operators i Wherein Φ, & gt>And respectively corresponding to the set risk coefficient of the moving path and the body health coefficient to reference values.
Comparing the potential safety hazard evaluation coefficient of each operator with a preset potential safety hazard evaluation coefficient threshold, and when the potential safety hazard evaluation coefficient of a certain operator is larger than the preset potential safety hazard evaluation coefficient threshold, indicating that the operator is in a non-safety state, and transmitting the position of the positioning mark point of the operator to a background terminal through wireless sensor equipment.
Compared with the prior art, the invention has the following beneficial effects: (1) According to the method, the moving paths of operators among the mine layout areas are analyzed, the moving rule indexes of the operators are comprehensively analyzed, the layout paths among the mine layout areas are expanded and adjusted according to the moving rule indexes, the common paths of the operators not only affect the moving efficiency of the operators, but also affect the balance of resource utilization, and the road layout can be more in line with the moving habit of the operators by analyzing the moving rule indexes of the operators, and the working comfort of the operators can be improved, so that the moving time of the operators is reduced, and the resource utilization is more balanced and efficient.
(2) According to the invention, the wireless sensor equipment is used for acquiring and analyzing the movement track of the operator, and the safety state of the operator is monitored in real time by combining the physiological instruction of the operator, so that potential safety risks and dangerous situations can be found in time. The miner encounters danger when entering the mine area, and certain danger exists in the living area moving range outside the working area, so that the safety state of the moving path of the mine worker outside the working area needs to be monitored in real time, when the worker is found to enter the dangerous area, an alarm is immediately sent out, and timely rescue and protection are provided for the worker, so that the safety of the working area is greatly improved.
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In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the system module connection of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, the invention provides a mine operator tracking, positioning and analyzing system based on a wireless sensor, which comprises: the system comprises a mine operation area dividing module, a personnel activity path acquisition module, a personnel activity path analysis module, a path expansion judging module, a safety monitoring analysis module, a database and an early warning display terminal. The mining operation area dividing module is connected with the personnel active path obtaining module, the personnel active path obtaining module is connected with the personnel active path analyzing module, the personnel active path analyzing module is respectively connected with the path expanding judging module and the safety monitoring analyzing module, the database is respectively connected with the personnel active path analyzing module, the path expanding judging module and the safety monitoring analyzing module, and the early warning display terminal is respectively connected with the personnel active path analyzing module and the safety monitoring analyzing module.
The mining operation area dividing module is used for acquiring area characteristic information of each layout area of a specified mine, numbering layout paths of each adjacent layout area and marking the layout paths as each layout path.
In a specific embodiment of the present invention, the region characteristic information includes a label type and a region position. Wherein, the annotation type comprises living area type, daily activity area type and the like.
The personnel activity path acquisition module is used for acquiring the activity path of each worker in real time according to the wireless sensor equipment worn by each worker.
The personnel activity path analysis module is used for analyzing the activity path of each worker, so as to analyze the activity rule index of each worker on each sub-activity road section.
In a specific embodiment of the present invention, the step of analyzing the activity path of each worker includes: taking the area position corresponding to each layout area as a demarcation point to obtain the activity path of each operator between each adjacent layout area, marking the activity path as each sub-activity road section, further analyzing the activity offset area and the farthest offset distance of each operator when each operator passes through each sub-activity road section on the current working day, and marking the activity offset area and the farthest offset distance as S respectively ix 、L ix I is the operator number, i=1, 2, …, m, x is the sub-activity road segment number, x=1, 2, …, z.
Specifically, the corresponding analysis mode of the activity offset area and the farthest offset distance of each worker when each worker passes through each sub-activity road section on the current working day is as follows: the method comprises the steps of extracting the active path of each worker passing through each sub-active road section on the current working day from the active path of each worker, comparing the active path with the layout path corresponding to each sub-active road section of each worker passing through on the current working day, and obtaining the area defined by the active path and the layout path, namely the active offset area, so as to obtain the active offset area of each worker passing through each sub-active road section on the current working day. And the farthest distance between the movable path and the layout path is obtained, namely the farthest offset distance.
From analytical formulasObtaining the offset coefficient delta of each worker when each sub-activity road section is passed by the current working day ix Wherein S 'and L' are respectively the set reference offset area and the referenceThe distance between the two adjacent substrates is determined,the set offset area and the offset distance correspond to the offset duty ratio weights respectively.
In a specific embodiment of the present invention, the method for analyzing the activity rule index of each worker on each sub-activity road section includes: extracting the record time t of each worker passing each sub-activity road section on each working day in the set monitoring period from the database ihx H is a workday number, h=1, 2,..y.
Based on the offset coefficient of each worker when the worker passes through each sub-activity road section on the current working day, the offset coefficient of each worker when the worker passes through each sub-activity road section on the working day is obtained, the offset coefficients of each worker when the worker passes through each sub-activity road section on the working day are compared with each other, the maximum offset coefficient and the minimum offset coefficient of each worker when the worker passes through each sub-activity road section on the working day are extracted and respectively recorded as delta ix (max) 、δ ix (min) 。
Calculating the activity rule index of each worker on each sub-activity road sectionWherein delta' is a set allowable value of the offset coefficient, R is a set constant, 0 < R < 1, and y is the number of specified workdays.
The path expansion judging module is used for evaluating expansion demand coefficients of all the layout paths and further analyzing the expansion adjustment feasibility of all the layout paths.
In a specific embodiment of the present invention, the evaluation manner for evaluating the expansion demand coefficient of each layout path is as follows: when the deviation coefficient of a worker passing through a certain sub-activity road section on a certain working day is larger than or equal to the set deviation coefficient, recording the activity information of the worker passing through the sub-activity road section on the working day, marking the activity information as a history deviation event, and counting to obtain the activity information corresponding to each history deviation event, wherein the activity information comprises the number of the worker, the recording time and the number of the sub-activity road section.
Extracting each historical offset event in the set monitoring period from a database, matching a sub-active road section corresponding to each historical offset event in the set monitoring period with each layout path, analyzing the occurrence frequency of the offset event of each layout path in the set monitoring period and the offset repetition rate of operators of each layout path in the set monitoring period according to the matching, and marking the offset event and the offset repetition rate as kappa respectively j 、ρ j J is a routing path number, j=1, 2,..n.
The specific content of analyzing the occurrence frequency of the offset event of each layout path in the set monitoring period is as follows: acquiring the recording time and the corresponding sub-active road sections in the activity information corresponding to each historical offset event, acquiring the offset event occurrence times of each layout path in a set monitoring period based on the layout paths corresponding to the sub-active road sections, acquiring the interval duration between each offset event, and further acquiring the offset event occurrence frequency of each layout path in the set monitoring period by adopting division operation.
Calculating deviation compensation influence factors corresponding to expansion demand coefficients of each layout path by combining the activity rule indexes of each worker on each sub-activity road section
It should be noted that, the calculation mode for calculating the deviation compensation influence factor corresponding to the expansion demand coefficient of each layout path is as follows: according to the calculation formulaObtaining deviation compensation influence factors corresponding to expansion demand coefficients of all sub-movable road sections, wherein +.>For the set activity rule index threshold value, m is the number of operators, and the sub-activity road section numbers and the layout path numbers refer to road sections in the same area, so that the sub-activity road section numbers and the layout path numbers are recorded to be the same, and the bias corresponding to the expansion demand coefficient of each layout path is obtainedDifferential compensation influencing factor->
Calculating expansion demand coefficients of each layout pathWherein, kappa ', rho' are respectively corresponding threshold values of the occurrence frequency of the offset event and the offset repetition rate of the operator, beta 1 、β 2 The duty ratio weights are set correspondingly for the occurrence frequency of the offset event and the offset repetition rate of the operator, and e is a natural constant.
In a specific embodiment of the present invention, the worker offset repetition rate calculation mode of each layout path in the set monitoring period is as follows: and carrying out offset grade division on the offset coefficient of the sub-active road sections to obtain the offset coefficient range of the sub-active road sections corresponding to each offset grade, and further obtaining the offset grade corresponding to the offset coefficient of each worker when passing through each sub-active road section on each working day.
Counting the number F of persons passing through the same deviation grade of each sub-active road section on each working day xh 。
Because the number of the sub-active road section and the number of the layout path refer to the road sections in the same area, the number of the sub-active road section and the number of the layout path are recorded to be the same, and the same deviation class personnel number F passing through each layout path on each working day is obtained jh ＝F xh 。
According to the calculation formulaObtaining the operator deviation repetition rate rho of each layout path in a set monitoring period j Wherein F is jh 0 Expressed as the total number of people passing through the h layout path on the j-th working day, and v is expressed as a set deviation influence factor.
In a specific embodiment of the present invention, the step of analyzing the expansion adjustment feasibility of each layout path includes: based on the expansion demand coefficients of the distribution paths, the distribution paths with the expansion demand coefficients larger than the set expansion demand coefficients are obtained and recorded as the paths to be expanded, and further the expansion demand areas of the paths to be expanded are obtained.
The corresponding acquisition mode of the expansion demand areas of the paths to be expanded is as follows: and acquiring each activity record of each layout path, wherein the activity records comprise the worker activity path and the offset coefficient of the worker activity path. Extracting each activity record of each path to be expanded from each activity record of each layout path to obtain an offset coefficient of each activity record of each path to be expanded corresponding to the activity path of the operator, extracting an activity path corresponding to the median of the offset coefficient of each activity record of each path to be expanded corresponding to the activity path of the operator, and marking a circled area between the activity record and the corresponding path to be expanded as an expansion demand area of the path to be expanded, so that a new layout path can be arbitrarily defined in the expansion demand area of each path to be expanded.
Extracting dangerous road section marking graphs of the appointed mine from the database, matching the expansion demand areas of the paths to be expanded with the dangerous road section marking areas in the dangerous road section marking graphs of the appointed mine, and expanding and adjusting the paths to be expanded if the expansion demand areas of the paths to be expanded are outside the dangerous road section marking areas in the dangerous road section marking graphs of the appointed mine.
The dangerous segment marking areas include, but are not limited to, mine slopes, dangerous equipment storage areas, and the like.
According to the method, the moving paths of operators among the mine layout areas are analyzed, the moving rule indexes of the operators are comprehensively analyzed, the layout paths among the mine layout areas are expanded and adjusted according to the moving rule indexes, the common paths of the operators not only affect the moving efficiency of the operators, but also affect the balance of resource utilization, and the road layout can be more in line with the moving habit of the operators by analyzing the moving rule indexes of the operators, and the working comfort of the operators can be improved, so that the moving time of the operators is reduced, and the resource utilization is more balanced and efficient.
The safety monitoring analysis module is used for evaluating the safety coefficient of the activity track of each worker so as to analyze whether each worker is in a safety state.
In a specific embodiment of the present invention, the action track safety coefficient evaluation mode of each operator is as follows: matching the movable paths of the operators with dangerous areas in the dangerous road section marking graphs of the appointed mine, acquiring the marking point position state of the operators in the movable path process in real time if the movable paths of the operators are in a dangerous area in the dangerous road section marking graphs of the appointed mine, acquiring the distance between the marking point position of the operators and the dangerous areas when the marking point position states are in a static state within preset time, screening out the dangerous distance closest to the marking point position of the operators, and marking as S 0 。
Acquiring stationary state holding time T of mark point position 0 ToAs the risk factor of the worker's movement path, l is the set risk factor influence correction factor,/>T' is the preset time corresponding duration of the preset reference value and the static state maintaining duration of the dangerous distance respectively.
When the marking point position state is in a non-static state within a preset time, the dangerous coefficient of the moving path of the operator is recorded asFurther obtain the risk coefficient of each worker's activity path +.>Or->
The non-stationary state within the preset time means that the non-stationary state within the preset time is provided as long as the non-stationary state exists at a certain time point within the preset time.
In a specific embodiment of the present invention, the step of analyzing whether each worker is in a safe state includes: the wireless sensor equipment worn by each operator is provided with a sensor device, the physiological indicators of each operator are monitored in real time, the physiological indicators comprise heart rate, body temperature and blood pressure, the monitoring time is taken as an abscissa, a two-dimensional coordinate system is constructed by taking the physiological indicators as an ordinate, the physiological indicator change curve of each operator in the monitoring time period is obtained, the physiological indicator change curve peak value of each operator is extracted, and the physiological indicator change curve peak value is recorded as PL i 、T i 、BP i Calculating physiological health coefficients of each workerPL ', T ', BP ' are respectively set heart rate, body temperature and blood pressure health thresholds, f1, f2 and f3 are respectively set health influence duty ratios corresponding to the heart rate, the body temperature and the blood pressure, and ζ is a set body health coefficient deviation correction factor.
Will phi i 、Substitution formula->Calculating potential safety hazard assessment coefficients lambda of all operators i Wherein Φ, & gt>And respectively corresponding to the set risk coefficient of the moving path and the body health coefficient to reference values.
Comparing the potential safety hazard evaluation coefficient of each operator with a preset potential safety hazard evaluation coefficient threshold, and when the potential safety hazard evaluation coefficient of a certain operator is larger than the preset potential safety hazard evaluation coefficient threshold, indicating that the operator is in a non-safety state, and transmitting the position of the positioning mark point of the operator to a background terminal through wireless sensor equipment.
The database is used for storing the record time of each worker passing through each sub-activity road section on each working day, storing each history offset event, the total number of workers passing through each layout path on each working day and storing the dangerous road section mark graph of the appointed mine.
The early warning display terminal is used for establishing a visual early warning platform, displaying the positions and the activity conditions of each operator in and out of the working area in real time, and sending an alarm to the background terminal when a certain operator is in an unsafe state.
According to the invention, the wireless sensor equipment is used for acquiring and analyzing the movement track of the operator, and the safety state of the operator is monitored in real time by combining the physiological instruction of the operator, so that potential safety risks and dangerous situations can be found in time. The miner encounters danger when entering the mine area, and certain danger exists in the living area moving range outside the working area, so that the safety state of the moving path of the mine worker outside the working area needs to be monitored in real time, when the worker is found to enter the dangerous area, an alarm is immediately sent out, and timely rescue and protection are provided for the worker, so that the safety of the working area is greatly improved.
The foregoing is merely illustrative and explanatory of the principles of this invention, as various modifications and additions may be made to the specific embodiments described, or similar arrangements may be substituted by those skilled in the art, without departing from the principles of this invention or beyond the scope of this invention as defined in the claims.
Claims (2)
1. A mine operator tracking, positioning and analyzing system based on a wireless sensor is characterized in that the system comprises:
the mine operation area dividing module is used for acquiring area characteristic information of each layout area of a specified mine, numbering the layout paths of each adjacent layout area and marking the layout paths as each layout path;
the personnel activity path acquisition module is used for acquiring the activity path of each worker in real time according to the wireless sensor equipment worn by each worker;
the personnel activity path analysis module is used for analyzing the activity path of each worker, so as to analyze the activity rule index of each worker on each sub-activity road section;
the path expansion judging module is used for evaluating expansion demand coefficients of all the layout paths and further analyzing the expansion adjustment feasibility of all the layout paths;
the safety monitoring analysis module is used for evaluating the safety coefficient of the activity track of each worker and further analyzing whether each worker is in a safety state;
the database is used for storing the record time of each worker passing through each sub-activity road section on each working day, storing each history offset event, the total number of workers passing through each layout path on each working day and storing a dangerous road section mark graph of a specified mine;
the early warning display terminal is used for establishing a visual early warning platform, displaying the positions and the activity conditions of each operator in the inside and outside of the working area in real time, and sending an alarm to the background terminal when a certain operator is in an unsafe state;
the step of analyzing the activity path of each worker comprises the following steps:
taking the corresponding area position of each layout area as a demarcation point to obtain the activity path of each operator between each adjacent layout area, marking the activity path as each sub-activity road section, further analyzing the activity offset area and the farthest offset distance of each operator when each operator passes through each sub-activity road section on the current working day, and marking the activity offset area and the farthest offset distance as respectively、/>，/>Numbering the operators, and giving->，/>Numbering sub-active road sections->；
From analytical formulasObtaining the deviation coefficient +.A deviation coefficient of each worker when each worker passes each sub-activity road section on the current working day>Wherein->The reference offset area and the reference distance are respectively set,respectively setting offset area and offset distance corresponding offset duty ratio weight;
the method for analyzing the activity rule index of each worker on each sub-activity road section comprises the following steps:
extracting the record time of each worker passing each sub-activity road section on each working day in the set monitoring period from the database,/>Numbering for workday->；
Based on the deviation coefficient of each worker when passing through each sub-activity road section on the current working day, the deviation coefficient of each worker when passing through each sub-activity road section on each working day is obtained, and each worker is extractedThe maximum deviation coefficient and the minimum deviation coefficient of the worker when passing through each sub-movable road section on the working day are respectively recorded as；
Calculating the activity rule index of each worker on each sub-activity road sectionWherein->For a set permissible value of the offset coefficient, +.>To set constant +.>，/>To specify the number of working days;
the evaluation mode for evaluating the expansion demand coefficient of each layout path is as follows:
when the deviation coefficient of a worker passing through a certain sub-activity road section on a certain working day is larger than or equal to the set deviation coefficient, recording the activity information of the worker passing through the sub-activity road section on the working day, and marking the activity information as a history deviation event;
extracting each historical offset event in the set monitoring period from a database, matching a sub-active road section corresponding to each historical offset event in the set monitoring period with each layout path, analyzing the occurrence frequency of the offset event of each layout path in the set monitoring period and the offset repetition rate of operators of each layout path in the set monitoring period according to the matching, and respectively marking as、/>，/>For routing path number, ++>;
Calculating deviation compensation influence factors corresponding to expansion demand coefficients of each layout path by combining the activity rule indexes of each worker on each sub-activity road section；
The calculation mode for calculating the deviation compensation influence factors corresponding to the expansion demand coefficients of each layout path is as follows: according to the calculation formulaObtaining deviation compensation influence factors corresponding to expansion demand coefficients of all sub-movable road sections, wherein +.>For a set activity law index threshold, +.>As the number of the sub-active road sections and the number of the layout paths refer to the road sections in the same area, the number of the sub-active road sections is recorded to be the same as the number of the layout paths, and deviation compensation influence factors corresponding to expansion demand coefficients of all the layout paths are obtained>;
Calculating expansion demand coefficients of each layout pathWherein, the method comprises the steps of, wherein,setting threshold values for the occurrence frequency of the offset event and the offset repetition rate of the operator respectively, and performing +.>Setting a duty ratio weight for the occurrence frequency of the offset event and the offset repetition rate of the operator respectively, wherein e is a natural constant;
the calculation mode of the offset repetition rate of the operators in the set monitoring period of each layout path is as follows:
carrying out offset grade division on the offset coefficient of the sub-active road section to obtain an offset coefficient range of the sub-active road section corresponding to each offset grade, and further obtaining an offset grade corresponding to the offset coefficient of each worker when passing through each sub-active road section on each working day;
counting the number of people passing through the same deviation grade of each sub-activity road section on each working day；
Because the number of the sub-active road section and the number of the layout path refer to the road sections in the same area, the number of the sub-active road section and the number of the layout path are recorded to be the same, and the number of personnel passing through the layout path on each working day with the same deviation grade is obtained；
According to the calculation formulaObtaining the operator deviation repetition rate of each layout path in the set monitoring period>Wherein->Expressed as total number of people passing through the h layout route on the j-th working day, +.>Expressed as a set bias influencing factor;
the step of analyzing the expansion adjustment feasibility of each layout path comprises the following steps:
based on the expansion demand coefficients of the various layout paths, various layout paths with the expansion demand coefficients larger than the set expansion demand coefficients are obtained and marked as various paths to be expanded, and then expansion demand areas of the various paths to be expanded are obtained;
extracting a dangerous road section marking map of a specified mine from a database, matching the expansion demand areas of the paths to be expanded with the dangerous road section marking areas in the dangerous road section marking map of the specified mine, and expanding and adjusting the paths to be expanded if the expansion demand areas of certain paths to be expanded are outside the dangerous road section marking areas in the dangerous road section marking map of the specified mine;
the action track safety coefficient evaluation mode of each operator is as follows:
matching the movable paths of the operators with dangerous areas in the dangerous road section marking graphs of the appointed mine, acquiring the marking point position state of the operators in the movable path process in real time if the movable paths of the operators are in a dangerous area in the dangerous road section marking graphs of the appointed mine, acquiring the distance between the marking point position of the operators and the dangerous areas when the marking point position states are in a static state within preset time, screening out the dangerous distance closest to the marking point position of the operators, and marking as；
Acquiring stationary state retention time of marker point positionTo->As a risk factor for the path of the worker activity, < +.>Influence correction factors for the set risk factors, +.>The preset time corresponding duration of the preset reference value and the static state keeping duration of the dangerous distance are respectively set;
when the marking point position state is in a non-static state within a preset time, the dangerous coefficient of the moving path of the operator is recorded asFurther, the risk coefficient of each worker's activity path is obtained>，/>；
The step of analyzing whether each worker is in a safe state comprises the following steps:
the wireless sensor equipment worn by each operator is provided with a sensor device, the physiological indicators of each operator are monitored in real time, the physiological indicators comprise heart rate, body temperature and blood pressure, the physiological indicator change curve of each operator in the monitoring time period is obtained, the physiological indicator change curve peak value of each operator is extracted, and the physiological health coefficient of each operator is calculated；
Will beSubstitution formula->Calculating potential safety hazard assessment coefficients of all operatorsWherein->Respectively setting corresponding reference values of the risk coefficient and the health coefficient of the moving path;
comparing the potential safety hazard evaluation coefficient of each operator with a preset potential safety hazard evaluation coefficient threshold, and when the potential safety hazard evaluation coefficient of a certain operator is larger than the preset potential safety hazard evaluation coefficient threshold, indicating that the operator is in a non-safety state, and transmitting the position of the positioning mark point of the operator to a background terminal through wireless sensor equipment.
2. The wireless sensor-based mining personnel tracking, positioning and analyzing system according to claim 1, wherein: the regional characteristic information comprises a labeling type and a regional position.
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| CN110399951A (en) * | 2019-07-26 | 2019-11-01 | 马鞍山市科泰电气科技有限公司 | A kind of monitoring management system and method for plant area staff motion track |
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