CN112363415A - Station real-time monitoring system based on wireless sensor network - Google Patents
Station real-time monitoring system based on wireless sensor network Download PDFInfo
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Abstract
The invention discloses a station real-time monitoring system based on a wireless sensor network, and belongs to the technical field of wireless sensor monitoring. Comprises a data acquisition module and a data processing module; the data acquisition module acquires data of passenger positions of the subway station in real time by using the wireless sensor network, and the data processing module is used for processing and calculating the passenger position data acquired by the data acquisition module and the wireless sensor coordinate value positioning data in the wireless sensor network; according to the invention, through the installation position of the distance sensor group, the number of passengers getting on or off the subway can be monitored, and meanwhile, the number of passengers replacing the carriage can be monitored, so that the number of people in each subway carriage can be more accurately monitored, the number of people in each carriage can be displayed before the subway arrives, the passengers can select the carriage with less number of people to take, and the passengers can freely take the subway.
Description
Technical Field
The invention relates to the technical field of wireless sensor monitoring, in particular to a station real-time monitoring system based on a wireless sensor network.
Background
Along with the continuous development of society and the continuous progress of science and technology, the development scale of rail transit in China is also gradually increased, rail transit includes public transport such as high-speed railway, train, subway, and under the condition that urban road is crowded, normal traffic order and efficiency are influenced, the development of subway rail transit has greatly improved the road crowding problem, but, along with the continuous development of subway, people also have various problems in the process of taking the subway:
passengers in all carriages of the subway are distributed unevenly, so that parts of carriages of the subway are crowded, and parts of carriages are empty and unmanned, so that public resources are wasted, the traveling experience of passengers is influenced, and how to reasonably disperse and guide the number of the passengers in all carriages of the subway becomes a problem which needs to be solved urgently;
chinese invention patent CN108944976A discloses a shunt device for selecting carriages when taking a subway, and specifically discloses the following technical scheme, which judges the crowding degree in the carriage by an infrared reflection principle so as to determine the number of the carriages in the subway, but when the infrared reflection device is shielded or partially shielded, the judgment error can be caused, and the judgment of the number of the carriages in the subway is not accurate enough, so that the judgment accuracy of the number of the carriages in the subway is influenced;
therefore, a real-time station monitoring system based on a wireless sensor network is urgently needed to solve the problems.
Disclosure of Invention
The invention aims to provide a station real-time monitoring system based on a wireless sensor network, so as to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: a station real-time monitoring system based on a wireless sensor network comprises a data acquisition module, a model positioning module, a data processing module and a determination display module;
the system comprises a data acquisition module, a model positioning module, a data processing module and a determination display module, wherein the data acquisition module acquires real-time data of passenger positions of a subway station by using a wireless sensor network, the model positioning module is used for positioning coordinate values of a two-dimensional model of a wireless sensor in the wireless sensor network, the data processing module is used for processing and calculating the passenger position data acquired by the data acquisition module and the coordinate value positioning data of the wireless sensor in the wireless sensor network, and the determination display module is used for verifying and displaying the results processed and calculated by the data processing module;
the output ends of the data acquisition module and the model positioning module are electrically connected with the input end of the data processing module, and the output end of the data processing module is electrically connected with the input end of the determined display module.
According to the technical scheme, the data acquisition module comprises a distance sensor group and a pressure sensor group;
the wireless sensor network consists of a distance sensor group and a pressure sensor group, and the output ends of the distance sensor group and the pressure sensor group are electrically connected with the input end of the data processing module;
the distance sensor group is arranged at the connection position of a subway carriage and the door of the subway carriage and is used for detecting whether passengers get on or off the subway and whether passengers change the carriage to take the subway or not so as to determine the number of the passengers in the carriage and the crowdedness degree of the carriage;
the model positioning module comprises a plane model establishing unit, a coordinate system establishing unit, a coordinate value positioning unit and a label endowing unit;
the system comprises a plane model establishing unit, a coordinate system establishing unit, a coordinate value positioning unit, a distance sensor group, a label endowing unit and a pressure sensor group, wherein the plane model establishing unit outputs a plane two-dimensional model, the output end of the coordinate system establishing unit is connected with the plane two-dimensional model, the output end of the coordinate value positioning unit is connected with the distance sensor group, the output end of the label endowing unit is connected with the input ends of the distance sensor group and;
the plane model establishing unit is used for establishing a plane two-dimensional model of a plane where the distance sensor group is located so as to uniformly manage the distance sensor group in the wireless sensor network; the coordinate system establishing unit is used for establishing a rectangular coordinate system of a plane where the planar two-dimensional model is located so as to position the position of each distance sensor in the distance sensor group; the coordinate value positioning unit is used for giving each distance sensor coordinate value in the rectangular coordinate system and positioning the coordinate value of each distance sensor in the distance sensor group so as to determine the walking direction of the passengers; the tag giving unit is used for giving tag information to each distance sensor and each pressure sensor in the wireless sensor network so as to determine the detected position of the distance sensor and each pressure sensor according to the tag information of the distance sensor and the pressure sensor, and determine the number of passengers in the subway carriage and the number of empty seats in the carriage.
According to the technical scheme, the distance sensor groups are divided into a first distance sensor group, a second distance sensor group, a third distance sensor group and a fourth distance sensor group;
the first distance sensor group is arranged on two sides of the junction of the subway carriages, the second distance sensor group is arranged on the top end of the junction of the subway carriages, the third distance sensor group is arranged on two sides of the door of the subway carriages, and the fourth distance sensor group is arranged on the top end of the door of the subway carriages;
the data acquisition module also comprises a time recording unit, and the output end of the time recording unit is electrically connected with the input end of the data processing module;
the time recording unit is used for starting timing when the distance sensor group detects that the distance changes, timing time is represented by T, and timing is stopped when the same distance sensor detects that the distance changes again;
when T ≧ T, which represents the set time threshold, indicates that the distance sensor is occluded.
The number of passengers getting on and off the car and the number of passengers to be taken in the replacement car can be detected when the number of passengers in the car is small by using the first distance sensor group and the third distance sensor group, the number of passengers getting on and off the car and the number of passengers to be taken in the replacement car can be detected when the number of passengers in the car is large by using the second distance sensor group and the fourth distance sensor group, because the first distance sensor group and the third distance sensor group can be shielded when the number of passengers in the car is large, so that the detection of the number of passengers in the car is influenced, and the detection of the number of passengers getting on and off the car and the number of passengers to be taken in the car can not be influenced even if the first distance sensor group and the third distance sensor group are shielded by the passengers by the second distance sensor group and the fourth distance sensor group installed at the top end, when the first distance sensor group, When the data detected by the second distance sensor group, the third distance sensor group and the fourth distance sensor group do not change within the time t, the number of people in the carriage is more, and the distance sensor groups are shielded.
According to the technical scheme, the data processing module comprises a central control unit and a data analysis unit;
the central control system is used for carrying out intelligent control on the whole system, and the data analysis unit is used for determining the movement direction of passengers according to the detection data of the distance sensor, the labels given by the label giving unit and the positioning data of the coordinate value positioning unit so as to judge the number of people in the subway carriage;
the output end of the data analysis unit is electrically connected with the input end of the central control unit.
According to the technical scheme, the data acquisition module further comprises a station entering and exiting people counting unit;
the station entering and exiting people counting unit counts the number of people entering and exiting the station through a station entering and exiting gate, compares the number of people entering and exiting the station with the number of people counted in the carriage, and determines whether the number of monitored people belongs to a floating range or not;
the confirming and displaying module comprises a people number verifying unit and a display screen;
the people number verification unit is used for verifying the analysis result of the data analysis unit according to the number of the people entering the station and the number of the people leaving the station counted by the number of the people entering the station counting unit and the total number of the people in the current carriage so as to further determine and verify the number of the people in the current carriage; the display screen is arranged in the middle of each carriage at the subway stop position of the subway platform and used for displaying the current number of people and the number of vacant positions of each carriage of the subway before the subway arrives at the station, so that passengers can conveniently select the carriages with less number of people to take the carriages, and the passengers are shunted;
the output electric connection number of business turn over station number statistics unit verifies the input of unit, the number verifies the output electric connection central control unit's of unit input, central control unit's output electric connection display screen's input.
The number of passengers in each subway carriage is displayed through the display screen, so that the passengers can know the crowdedness of each carriage in advance, the subway carriages with less number of passengers are selected to take, the subway passengers can be effectively shunted, the crowded condition of the subway carriages is avoided, and a better riding environment is provided for the passengers.
According to the technical scheme, the first distance sensor group and the third distance sensor group establish a first plane two-dimensional model, the second distance sensor group and the fourth distance sensor group establish a second plane two-dimensional model, the coordinate system establishing unit establishes a first plane rectangular coordinate system for the first plane two-dimensional model, the coordinate system establishing unit establishes a second plane rectangular coordinate system for the second plane two-dimensional model, and the coordinate value positioning unit endows the distance sensors in the first plane rectangular coordinate system with coordinate values (X coordinate values)i，Yi) The coordinate value positioning unit gives a coordinate value (M) to the distance sensor in the second planar rectangular coordinate systemi，Ni) The tag giving unit gives the subway carriage position information of each sensor in the first distance sensor group, the second distance sensor group, the third distance sensor group and the fourth distance sensor group, so that the corresponding carriage number information detected by each distance sensor is determined.
According to the technical scheme, the initial detection distance of each distance sensor group in the distance sensor groups is L, the first distance sensor group and the second distance sensor group are divided into three rows and arranged in a matrix manner, so that the traveling track of a passenger can be confirmed, whether the passenger replaces the carriage to take or not is determined, the number of passengers in the carriage can be accurately known, and the labels are the ith carriage and the ith carriageThe coordinate in the first distance sensor group at the joint of the i +1 carriages is (X)0，Y0)、(X1，Y0) And (X)2，Y0) At a distance T equal to T1Ts and T ≦ T2A change in distance is detected within ts or less, and the data analysis unit calls the coordinate (X)0，Y0)、(X1，Y0) And (X)2，Y0) The data analysis unit analyzes the position of the tag based on the coordinate value (X)0，Y0)＝(0,0)、(X1，Y0) (1,0) and (X)2，Y0) (X) is calculated as (2,0)1，Y0)-(X0，Y0)＝(1,0)，(X2，Y0)-(X1，Y0) And (1,0) indicating that the passengers go to the (i + 1) th carriage from the ith carriage to take the subway, wherein the central control unit controls the display screen corresponding to the ith carriage to display that the number of the passengers is decreased by one, and the display screen corresponding to the (i + 1) th carriage to display that the number of the passengers is increased by one.
According to the above technical solution, the coordinate value in the first distance sensor group is (X)i，Yi) A change in distance is detected and the time recorded by the time recording unit is T ═ T3Is not less than ts, indicating that the coordinate value is (X)i，Yi) The distance sensor of (2) is sheltered from, the second distance sensor group uploads the detection data, because the partial distance sensor in the first distance sensor group is sheltered from this moment, the first distance sensor group can't play the condition that whether the detection passenger changes the carriage and takes, the second distance sensor group installed on the top of the carriage junction uploads the detection distance, the accuracy of monitoring the passenger can be effectively improved, and the number of passengers in each carriage can be monitored more accurately.
According to the technical scheme, the third distance sensor group and the fourth distance sensor group are divided into three rows and arranged in a matrix mode, so that the traveling track of a passenger can be confirmed, whether the passenger replaces a carriage to take or not is determined, the number of passengers in the carriage can be accurately known, and the passenger number in the carriage is accurately changed and markedThe coordinate in the third distance sensor group signed as the two sides of the ith carriage door is (M)0，N0)、(M0，N1) And (M)0，N2) At a distance T equal to T4Ts and T are not more than5Detecting a change in distance within ts or less, the data analysis unit recalling the coordinate as (M)0，N0)、(M0，N1) And (M)0，N2) The data analysis unit analyzes the position of the tag based on the coordinate value (M)0，N0)＝(0,0)、(M0，N1) (1,0) and (M)0，N2) (M) is calculated as (0,2)0，N1)-(M0，N0)＝(0,1)，(M0，N2)-(M0，N1) The central control unit controls a display screen corresponding to the ith carriage to display that the number of passengers is increased by one;
the coordinate value in the third distance sensor group is (M)i，Ni) A change in distance is detected and the time recorded by the time recording unit is T ═ T6Is not less than ts, indicating that the coordinate value is (M)i，Ni) The distance sensor is sheltered from, the fourth distance sensor group uploads the detection data, because the partial distance sensor in the third distance sensor group is sheltered from this moment, the third distance sensor group can't play the condition that whether the detection passenger changes the carriage and takes, the fourth distance sensor group installed on the top end of the door of the carriage uploads the detection distance, the accuracy of monitoring the passenger can be effectively improved, and the number of passengers in each carriage can be monitored more accurately.
According to the technical scheme, the pressure value detected by the pressure sensor group is P, and the pressure value of each seat of the subway carriage is calculated according to the following formula:
p＝P/i
where p represents the average pressure experienced at each seat and i represents the number of seats; when p ≧ f, it means that there is no empty seat;
when p < f, indicating an empty seat, and f, indicating a set pressure threshold; the display screen displays whether the seat is empty or not.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the subway number monitoring system, the number of passengers getting on or off the subway can be monitored through the installation position of the distance sensor group, meanwhile, the number of passengers replacing the carriage can be monitored, the number of people in each subway carriage can be more accurately monitored, the number of people in each carriage can be displayed before the subway arrives, the passengers can select the carriage with less number of people to take, free riding of the passengers is realized, shunting of the subway passengers is realized, congestion is avoided, meanwhile, whether the inside of the carriage has a position can be displayed through the pressure sensor group, waste of public resources is avoided to the maximum extent, and compared with the traditional subway shunting, the number of passengers in each carriage is more accurately monitored.
2. According to the invention, each distance sensor and each pressure sensor are positioned and labeled by using the model positioning unit, so that the number of passengers getting on or off each subway carriage can be accurately known, and the accurate number of passengers in each subway carriage can be more clearly known.
3. Through the matrix arrangement of distance sensor group for can know passenger's advancing direction according to different distance sensor's detection data, avoid appearing the erroneous judgement condition and lead to the number monitoring inaccurate to subway carriage, simultaneously, can be according to the crowded degree in the condition preliminary judgement carriage that distance sensor is sheltered from.
4. According to the invention, the number of passengers in the subway station is verified through the number counting unit and the number verification unit, so that the number of passengers in the subway carriage can be more accurately monitored, the number of passengers in the subway carriage can be updated, the gradual increase of the number monitoring error is avoided, and the accuracy of monitoring the number of passengers in the subway carriage is further improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of the module composition of a station real-time monitoring system based on a wireless sensor network according to the present invention;
FIG. 2 is a schematic diagram of module connection of a station real-time monitoring system based on a wireless sensor network according to the present invention;
FIG. 3 is a subway carriage connection diagram of a station real-time monitoring system based on a wireless sensor network according to the invention;
FIG. 4 is a schematic diagram of a planar two-dimensional model structure of a first distance sensor group and a second distance sensor group of a station real-time monitoring system based on a wireless sensor network according to the present invention;
fig. 5 is a schematic plane two-dimensional model structure diagram of a third distance sensor group and a fourth distance sensor group of the station real-time monitoring system based on the wireless sensor network.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 5, the present invention provides a technical solution: a station real-time monitoring system based on a wireless sensor network comprises a data acquisition module, a model positioning module, a data processing module and a determination display module;
the system comprises a data acquisition module, a model positioning module, a data processing module and a determination display module, wherein the data acquisition module acquires real-time data of passenger positions of a subway station by using a wireless sensor network, the model positioning module is used for positioning coordinate values of a two-dimensional model of a wireless sensor in the wireless sensor network, the data processing module is used for processing and calculating the passenger position data acquired by the data acquisition module and the coordinate value positioning data of the wireless sensor in the wireless sensor network, and the determination display module is used for verifying and displaying the results processed and calculated by the data processing module;
the output ends of the data acquisition module and the model positioning module are electrically connected with the input end of the data processing module, and the output end of the data processing module is electrically connected with the input end of the determined display module.
According to the technical scheme, the data acquisition module comprises a distance sensor group and a pressure sensor group;
the wireless sensor network consists of a distance sensor group and a pressure sensor group, and the output ends of the distance sensor group and the pressure sensor group are electrically connected with the input end of the data processing module;
the distance sensor group is arranged at the connection position of a subway carriage and the door of the subway carriage and is used for detecting whether passengers get on or off the subway and whether passengers change the carriage to take the subway or not so as to determine the number of the passengers in the carriage and the crowdedness degree of the carriage;
the model positioning module comprises a plane model establishing unit, a coordinate system establishing unit, a coordinate value positioning unit and a label endowing unit;
the system comprises a plane model establishing unit, a coordinate system establishing unit, a coordinate value positioning unit, a distance sensor group, a label endowing unit and a pressure sensor group, wherein the plane model establishing unit outputs a plane two-dimensional model, the output end of the coordinate system establishing unit is connected with the plane two-dimensional model, the output end of the coordinate value positioning unit is connected with the distance sensor group, the output end of the label endowing unit is connected with the input ends of the distance sensor group and;
the plane model establishing unit is used for establishing a plane two-dimensional model of a plane where the distance sensor group is located so as to uniformly manage the distance sensor group in the wireless sensor network; the coordinate system establishing unit is used for establishing a rectangular coordinate system of a plane where the planar two-dimensional model is located so as to position the position of each distance sensor in the distance sensor group; the coordinate value positioning unit is used for giving each distance sensor coordinate value in the rectangular coordinate system and positioning the coordinate value of each distance sensor in the distance sensor group so as to determine the walking direction of the passengers; the tag giving unit is used for giving tag information to each distance sensor and each pressure sensor in the wireless sensor network so as to determine the detected position of the distance sensor and each pressure sensor according to the tag information of the distance sensor and the pressure sensor, and determine the number of passengers in the subway carriage and the number of empty seats in the carriage.
According to the technical scheme, the distance sensor groups are divided into a first distance sensor group, a second distance sensor group, a third distance sensor group and a fourth distance sensor group;
the first distance sensor group is arranged on two sides of the junction of the subway carriages, the second distance sensor group is arranged on the top end of the junction of the subway carriages, the third distance sensor group is arranged on two sides of the door of the subway carriages, and the fourth distance sensor group is arranged on the top end of the door of the subway carriages;
the data acquisition module also comprises a time recording unit, and the output end of the time recording unit is electrically connected with the input end of the data processing module;
the time recording unit is used for starting timing when the distance sensor group detects that the distance changes, timing time is represented by T, and timing is stopped when the same distance sensor detects that the distance changes again;
when T ≧ T, which represents the set time threshold, indicates that the distance sensor is occluded.
The number of passengers getting on and off the car and the number of passengers to be taken in the replacement car can be detected when the number of passengers in the car is small by using the first distance sensor group and the third distance sensor group, the number of passengers getting on and off the car and the number of passengers to be taken in the replacement car can be detected when the number of passengers in the car is large by using the second distance sensor group and the fourth distance sensor group, because the first distance sensor group and the third distance sensor group can be shielded when the number of passengers in the car is large, so that the detection of the number of passengers in the car is influenced, and the detection of the number of passengers getting on and off the car and the number of passengers to be taken in the car can not be influenced even if the first distance sensor group and the third distance sensor group are shielded by the passengers by the second distance sensor group and the fourth distance sensor group installed at the top end, when the first distance sensor group, When the data detected by the second distance sensor group, the third distance sensor group and the fourth distance sensor group do not change within the time t, the number of people in the carriage is more, and the distance sensor groups are shielded.
According to the technical scheme, the data processing module comprises a central control unit and a data analysis unit;
the central control system is used for carrying out intelligent control on the whole system, and the data analysis unit is used for determining the movement direction of passengers according to the detection data of the distance sensor, the labels given by the label giving unit and the positioning data of the coordinate value positioning unit so as to judge the number of people in the subway carriage;
the output end of the data analysis unit is electrically connected with the input end of the central control unit.
According to the technical scheme, the data acquisition module further comprises a station entering and exiting people counting unit;
the station entering and exiting people counting unit counts the number of people entering and exiting the station through a station entering and exiting gate, compares the number of people entering and exiting the station with the number of people counted in the carriage, and determines whether the number of monitored people belongs to a floating range or not;
the confirming and displaying module comprises a people number verifying unit and a display screen;
the people number verification unit is used for verifying the analysis result of the data analysis unit according to the number of the people entering the station and the number of the people leaving the station counted by the number of the people entering the station counting unit and the total number of the people in the current carriage so as to further determine and verify the number of the people in the current carriage; the display screen is arranged in the middle of each carriage at the subway stop position of the subway platform and used for displaying the current number of people and the number of vacant positions of each carriage of the subway before the subway arrives at the station, so that passengers can conveniently select the carriages with less number of people to take the carriages, and the passengers are shunted;
the output electric connection number of business turn over station number statistics unit verifies the input of unit, the number verifies the output electric connection central control unit's of unit input, central control unit's output electric connection display screen's input.
The number of passengers in each subway carriage is displayed through the display screen, so that the passengers can know the crowdedness of each carriage in advance, the subway carriages with less number of passengers are selected to take, the subway passengers can be effectively shunted, the crowded condition of the subway carriages is avoided, and a better riding environment is provided for the passengers.
According to the technical scheme, the first distance sensor group and the third distance sensor group establish a first plane two-dimensional model, the second distance sensor group and the fourth distance sensor group establish a second plane two-dimensional model, the coordinate system establishing unit establishes a first plane rectangular coordinate system for the first plane two-dimensional model, the coordinate system establishing unit establishes a second plane rectangular coordinate system for the second plane two-dimensional model, and the coordinate value positioning unit endows the distance sensors in the first plane rectangular coordinate system with coordinate values (X coordinate values)i，Yi) The coordinate value positioning unit gives a coordinate value (M) to the distance sensor in the second planar rectangular coordinate systemi，Ni) The tag giving unit gives the subway carriage position information of each sensor in the first distance sensor group, the second distance sensor group, the third distance sensor group and the fourth distance sensor group, so that the corresponding carriage number information detected by each distance sensor is determined.
According to the technical scheme, the initial detection distance of each distance sensor group in the distance sensor groups is L, and the first distance sensor group and the second distance sensor group are divided into three rows and arranged in a matrix, so that the traveling track of a passenger can be confirmed to determine the multiplicationWhether the passenger changes the carriage to take or not is judged, so that the number of passengers in the carriage can be accurately known, and the coordinate of the first distance sensor group at the joint of the ith carriage and the (i + 1) th carriage is marked as (X)0，Y0)、(X1，Y0) And (X)2，Y0) At a distance T equal to T1Ts and T ≦ T2A change in distance is detected within ts or less, and the data analysis unit calls the coordinate (X)0，Y0)、(X1，Y0) And (X)2，Y0) The data analysis unit analyzes the position of the tag based on the coordinate value (X)0，Y0)＝(0,0)、(X1，Y0) (1,0) and (X)2，Y0) (X) is calculated as (2,0)1，Y0)-(X0，Y0)＝(1,0)，(X2，Y0)-(X1，Y0) And (1,0) indicating that the passengers go to the (i + 1) th carriage from the ith carriage to take the subway, wherein the central control unit controls the display screen corresponding to the ith carriage to display that the number of the passengers is decreased by one, and the display screen corresponding to the (i + 1) th carriage to display that the number of the passengers is increased by one.
According to the above technical solution, the coordinate value in the first distance sensor group is (X)i，Yi) A change in distance is detected and the time recorded by the time recording unit is T ═ T3Is not less than ts, indicating that the coordinate value is (X)i，Yi) The distance sensor of (2) is sheltered from, the second distance sensor group uploads the detection data, because the partial distance sensor in the first distance sensor group is sheltered from this moment, the first distance sensor group can't play the condition that whether the detection passenger changes the carriage and takes, the second distance sensor group installed on the top of the carriage junction uploads the detection distance, the accuracy of monitoring the passenger can be effectively improved, and the number of passengers in each carriage can be monitored more accurately.
According to the above technical solution, the third distance sensor group and the fourth distance sensor group are both divided into three rows and arranged in a matrix, so that passengers can be addressedThe travel track of the vehicle door is confirmed, so that whether passengers replace the carriage to take the vehicle is determined, the change of the number of passengers in the carriage can be accurately known, and the coordinate in the third distance sensor group labeled as the two sides of the ith carriage door is (M)0，N0)、(M0，N1) And (M)0，N2) At a distance T equal to T4Ts and T are not more than5Detecting a change in distance within ts or less, the data analysis unit recalling the coordinate as (M)0，N0)、(M0，N1) And (M)0，N2) The data analysis unit analyzes the position of the tag based on the coordinate value (M)0，N0)＝(0,0)、(M0，N1) (0,1) and (M)0，N2) (M) is calculated as (0,2)0，N1)-(M0，N0)＝(1,0)，(M0，N2)-(M0，N1) The central control unit controls a display screen corresponding to the ith carriage to display that the number of passengers is increased by one;
the coordinate value in the third distance sensor group is (M)i，Ni) A change in distance is detected and the time recorded by the time recording unit is T ═ T6Is not less than ts, indicating that the coordinate value is (M)i，Ni) The distance sensor is sheltered from, the fourth distance sensor group uploads the detection data, because the partial distance sensor in the third distance sensor group is sheltered from this moment, the third distance sensor group can't play the condition that whether the detection passenger changes the carriage and takes, the fourth distance sensor group installed on the top end of the door of the carriage uploads the detection distance, the accuracy of monitoring the passenger can be effectively improved, and the number of passengers in each carriage can be monitored more accurately.
According to the technical scheme, the pressure value detected by the pressure sensor group is P, and the pressure value of each seat of the subway carriage is calculated according to the following formula:
p＝P/i；
where p represents the average pressure experienced at each seat and i represents the number of seats; when p ≧ f, it means that there is no empty seat;
when p < f, indicating an empty seat, and f, indicating a set pressure threshold; the display screen displays whether the seat is empty or not.
The first embodiment is as follows:
the initial detection distance of each distance sensor group in the distance sensor groups is L (2 m), the first distance sensor group and the second distance sensor group are divided into three rows and arranged in a matrix, so that the traveling track of a passenger can be confirmed, whether the passenger replaces a carriage to take or not is determined, the number of passengers in the carriage can be accurately known to change, and the label is (X) the coordinate in the first distance sensor group at the joint of the 4 th carriage and the 5 th carriage0，Y0)、(X1，Y0) And (X)2，Y0) At a distance T equal to T10.26 ≦ T ═ 2s and T ═ T2The data analysis unit detects a distance change within 2s as t 0.21 ≦ t, and calls a coordinate (X)0，Y0)、(X1，Y0) And (X)2，Y0) The data analysis unit analyzes the position of the tag based on the coordinate value (X)0，Y0)＝(0,0)、(X1，Y0) (1,0) and (X)2，Y0) (X) is calculated as (2,0)1，Y0)-(X0，Y0)＝(1,0)，(X2，Y0)-(X1，Y0) And (1,0) indicating that the passengers go to the 5 th carriage from the 4 th carriage to take the subway, wherein the central control unit controls the display screen corresponding to the 4 th carriage to display that the number of the passengers is decreased by one, and the display screen corresponding to the 5 th carriage to display that the number of the passengers is increased by one.
The coordinate value in the first distance sensor group is (X)1，Y0) A change in distance is detected and the time recorded by the time recording unit is T ═ T310 ≧ t ═ 2s, the coordinate value is (X)1，Y0) Distance transmission ofThe sensor is sheltered from, the second distance sensor group uploads the detected data, because the partial distance sensor in the first distance sensor group is sheltered from this moment, and first distance sensor group will unable play the condition that whether change the carriage and take of detection passenger, installs the second distance sensor group on carriage junction top and uploads the detection distance this moment, can effectual improvement to the degree of accuracy of passenger control for it is more accurate to every section of carriage passenger number control.
Example two:
the third distance sensor group and the fourth distance sensor group are divided into three rows and arranged in a matrix manner, so that the traveling track of a passenger can be confirmed, whether the passenger replaces a carriage to take or not is determined, the number of passengers in the carriage can be accurately known, and the coordinates in the third distance sensor group with the 6 th section of carriage door on both sides are (M)0，N0)、(M0，N1) And (M)0，N2) At a distance T equal to T4T is 0.15 ≦ T2 s and T5The data analysis unit retrieves a coordinate (M) when a distance change is detected within 2s at 0.18. ltoreq. t0，N0)、(M0，N1) And (M)0，N2) The data analysis unit analyzes the position of the tag based on the coordinate value (M)0，N0)＝(0,0)、(M0，N1) (0,1) and (M)0，N2) (M) is calculated as (0,2)0，N1)-(M0，N0)＝(0,1)，(M0，N2)-(M0，N1) When the number of passengers is equal to (0,1), the central control unit indicates that the passengers enter the 6 th compartment from the door of the 6 th compartment, and the central control unit controls the display screen corresponding to the 6 th compartment to display that the number of passengers is increased by one;
the coordinate value in the third distance sensor group is (M)0，N1) A change in distance is detected and the time recorded by the time recording unit is T ═ T612 ≧ t ═ 2s, the coordinate value is (M)0，N1) Is shieldedKeep off, fourth distance sensor group uploads the detected data, because the part distance sensor in the third distance sensor group is sheltered from this moment, and the third distance sensor group will fail to play the condition that whether the detection passenger changes the carriage and takes, installs the fourth distance sensor group on carriage door top and uploads the detection distance this moment, can effectual improvement to the degree of accuracy of passenger control for it is more accurate to every section carriage passenger number control.
Example three:
the third distance sensor group and the fourth distance sensor group are divided into three rows and arranged in a matrix manner, so that the traveling track of a passenger can be confirmed, whether the passenger replaces a carriage to take or not is determined, the number of passengers in the carriage can be accurately known, and the coordinates in the third distance sensor group with the 6 th section of carriage door on both sides are (M)0，N0)、(M0，N1) And (M)0，N2) At a distance T equal to T4T is 0.15 ≦ T2 s and T5The data analysis unit retrieves a coordinate (M) when a distance change is detected within 2s at 0.18. ltoreq. t0，N2)、(M0，N1) And (M)0，N0) The data analysis unit analyzes the position of the tag based on the coordinate value (M)0，N2)＝(0,2)、(M0，N1) (0,1) and (M)0，N0) (M) is calculated as (0,0)0，N1)-(M0，N2)＝(0,-1)，(M0，N0)-(M0，N1) And (0, -1) indicating that the passengers get off the vehicle from the 6 th compartment, wherein the central control unit controls the display screen corresponding to the 6 th compartment to display that the number of the passengers is increased or decreased by one.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a station real time monitoring system based on wireless sensor network which characterized in that: the station real-time monitoring system comprises a data acquisition module, a model positioning module, a data processing module and a determination display module;
the system comprises a data acquisition module, a model positioning module, a data processing module and a determination display module, wherein the data acquisition module acquires real-time data of passenger positions of a subway station by using a wireless sensor network, the model positioning module is used for positioning coordinate values of a two-dimensional model of a wireless sensor in the wireless sensor network, the data processing module is used for processing and calculating the passenger position data acquired by the data acquisition module and the coordinate value positioning data of the wireless sensor in the wireless sensor network, and the determination display module is used for verifying and displaying the results processed and calculated by the data processing module;
the output ends of the data acquisition module and the model positioning module are electrically connected with the input end of the data processing module, and the output end of the data processing module is electrically connected with the input end of the determined display module.
2. The station real-time monitoring system based on the wireless sensor network as claimed in claim 1, wherein: the data acquisition module comprises a distance sensor group and a pressure sensor group;
the wireless sensor network consists of a distance sensor group and a pressure sensor group, and the output ends of the distance sensor group and the pressure sensor group are electrically connected with the input end of the data processing module;
the distance sensor group is arranged at the connection position of a subway carriage and the door of the subway carriage and is used for detecting whether passengers get on or off the subway and whether passengers change the carriage to take the subway or not so as to determine the number of the passengers in the carriage and the crowdedness degree of the carriage;
the model positioning module comprises a plane model establishing unit, a coordinate system establishing unit, a coordinate value positioning unit and a label endowing unit;
the system comprises a plane model establishing unit, a coordinate system establishing unit, a coordinate value positioning unit, a distance sensor group, a label endowing unit and a pressure sensor group, wherein the plane model establishing unit outputs a plane two-dimensional model, the output end of the coordinate system establishing unit is connected with the plane two-dimensional model, the output end of the coordinate value positioning unit is connected with the distance sensor group, the output end of the label endowing unit is connected with the input ends of the distance sensor group and;
the plane model establishing unit is used for establishing a plane two-dimensional model of a plane where the distance sensor group is located; the coordinate system establishing unit is used for establishing a rectangular coordinate system of a plane where the planar two-dimensional model is located; the coordinate value positioning unit is used for giving each distance sensor coordinate value in the rectangular coordinate system and positioning the coordinate value of each distance sensor in the distance sensor group so as to determine the walking direction of the passengers; the label endowing unit is used for endowing label information to each distance sensor and each pressure sensor in the wireless sensor network.
3. The station real-time monitoring system based on the wireless sensor network as claimed in claim 2, wherein: the distance sensor group is divided into a first distance sensor group, a second distance sensor group, a third distance sensor group and a fourth distance sensor group;
the first distance sensor group is arranged on two sides of the junction of the subway carriages, the second distance sensor group is arranged on the top end of the junction of the subway carriages, the third distance sensor group is arranged on two sides of the door of the subway carriages, and the fourth distance sensor group is arranged on the top end of the door of the subway carriages;
the data acquisition module also comprises a time recording unit, and the output end of the time recording unit is electrically connected with the input end of the data processing module;
the time recording unit is used for starting timing when the distance sensor group detects that the distance changes, timing time is represented by T, and timing is stopped when the same distance sensor detects that the distance changes again;
when T ≧ T, which represents the set time threshold, indicates that the distance sensor is occluded.
4. The station real-time monitoring system based on the wireless sensor network as claimed in claim 1, wherein: the data processing module comprises a central control unit and a data analysis unit;
the central control system is used for carrying out intelligent control on the whole system, and the data analysis unit is used for determining the movement direction of passengers according to the detection data of the distance sensor, the labels given by the label giving unit and the positioning data of the coordinate value positioning unit so as to judge the number of people in the subway carriage;
the output end of the data analysis unit is electrically connected with the input end of the central control unit.
5. The station real-time monitoring system based on the wireless sensor network as claimed in claim 1, wherein: the data acquisition module also comprises a station entering and exiting people counting unit;
the station entering and exiting people counting unit counts the number of people entering and exiting the station through a station entering and exiting gate, compares the number of people entering and exiting the station with the number of people counted in the carriage, and determines whether the number of monitored people belongs to a floating range or not;
the confirming and displaying module comprises a people number verifying unit and a display screen;
the people number verification unit is used for verifying the analysis result of the data analysis unit according to the number of the people entering the station and the number of the people leaving the station counted by the number of people entering the station counting unit and the current sum of the number of the people in the carriage; the display screen is arranged in the middle of each carriage at the subway stop position of the subway platform and is used for displaying the current number of people and the number of vacant positions of each carriage of the subway before the subway arrives at the station;
the output electric connection number of business turn over station number statistics unit verifies the input of unit, the number verifies the output electric connection central control unit's of unit input, central control unit's output electric connection display screen's input.
6. The station real-time monitoring system based on the wireless sensor network as claimed in claim 3, wherein: the first distance sensor group and the third distance sensor group establish a first plane two-dimensional model, the second distance sensor group and the fourth distance sensor group establish a second plane two-dimensional model, the coordinate system establishing unit establishes a first plane rectangular coordinate system for the first plane two-dimensional model, the coordinate system establishing unit establishes a second plane rectangular coordinate system for the second plane two-dimensional model, and the coordinate value positioning unit gives a coordinate value (X) to the distance sensors in the first plane rectangular coordinate systemi，Yi) The coordinate value positioning unit gives a coordinate value (M) to the distance sensor in the second planar rectangular coordinate systemi，Ni) The tag giving unit gives the subway carriage position information of each sensor in the first distance sensor group, the second distance sensor group, the third distance sensor group and the fourth distance sensor group, so that the corresponding carriage number information detected by each distance sensor is determined.
7. The method of claim 6The utility model provides a station real time monitoring system based on wireless sensor network which characterized in that: the initial detection distance of each distance sensor group in the distance sensor groups is L, the first distance sensor group and the second distance sensor group are divided into three rows which are arranged in a matrix, and the label is that the coordinate in the first distance sensor group at the joint of the ith carriage and the (i + 1) th carriage is (X)0，Y0)、(X1，Y0) And (X)2，Y0) At a distance T equal to T1Ts and T ≦ T2A change in distance is detected within ts or less, and the data analysis unit calls the coordinate (X)0，Y0)、(X1，Y0) And (X)2，Y0) The data analysis unit analyzes the position of the tag based on the coordinate value (X)0，Y0)＝(0,0)、(X1，Y0) (1,0) and (X)2，Y0) (X) is calculated as (2,0)1，Y0)-(X0，Y0)＝(1,0)，(X2，Y0)-(X1，Y0) And (1,0) indicating that the passengers go to the (i + 1) th carriage from the ith carriage to take the subway, wherein the central control unit controls the display screen corresponding to the ith carriage to display that the number of the passengers is decreased by one, and the display screen corresponding to the (i + 1) th carriage to display that the number of the passengers is increased by one.
8. The station real-time monitoring system based on the wireless sensor network as claimed in claim 7, wherein: the coordinate value in the first distance sensor group is (X)i，Yi) A change in distance is detected and the time recorded by the time recording unit is T ═ T3Is not less than ts, indicating that the coordinate value is (X)i，Yi) The second distance sensor group uploads the detection data.
9. The station real-time monitoring system based on the wireless sensor network as claimed in claim 7, wherein: the third and fourth distance sensor groups are both dividedIs arranged in three rows and arranged in a matrix, and the label is the coordinate (M) in the third distance sensor group at the two sides of the ith carriage door0，N0)、(M0，N1) And (M)0，N2) At a distance T equal to T4Ts and T are not more than5Detecting a change in distance within ts or less, the data analysis unit recalling the coordinate as (M)0，N0)、(M0，N1) And (M)0，N2) The data analysis unit analyzes the position of the tag based on the coordinate value (M)0，N0)＝(0,0)、(M0，N1) (0,1) and (M)0，N2) (M) is calculated as (0,2)0，N1)-(M0，N0)＝(0,1)，(M0，N2)-(M0，N1) The central control unit controls a display screen corresponding to the ith carriage to display that the number of passengers is increased by one;
the coordinate value in the third distance sensor group is (M)i，Ni) A change in distance is detected and the time recorded by the time recording unit is T ═ T6Is not less than ts, indicating that the coordinate value is (M)i，Ni) The fourth distance sensor group uploads the detection data.
10. The station real-time monitoring system based on the wireless sensor network as claimed in claim 2, wherein: the pressure value detected by the pressure sensor group is P, and the pressure value of each seat of the subway carriage is calculated according to the following formula:
p＝P/i；
where p represents the average pressure experienced at each seat and i represents the number of seats; when p ≧ f, it means that there is no empty seat;
when p < f, indicating an empty seat, and f, indicating a set pressure threshold; the display screen displays whether the seat is empty or not.
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