CN103714603A - Bus passenger flow statistics system based on infrared distance measuring sensor - Google Patents
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Abstract
The invention discloses a bus passenger flow statistics system based on an infrared distance measuring sensor. The system is characterized by comprising an infrared distance measuring sensor module, a data processing module and a GPS (Global Positioning System) positioning module, wherein the infrared distance measuring sensor module is used for detecting data signals of objects at a getting on door and getting off door of a bus and used for transmitting the acquired data signals to the data processing module; the GPS positioning module is used for acquiring position information of the bus in real time and used for transmitting the position information of the bus to the data processing module; the data processing module is used for processing and analyzing according to the data signals provided by the infrared distance measuring sensor module so as to acquire the number of people getting on and getting off the bus at an appointed time and appointed positions. According to the system, the acquisition on passenger data is achieved through a distance measuring principle of the infrared distance measuring sensor, the precision and the robustness in passenger data statistics are improved, and a practical and feasible solving scheme is provided for operation analysis ideas, passenger flow planning, scheduling and management techniques of the buses.
Description
Technical field
The invention belongs to vehicle management technical field, be specifically related to a kind of bus passenger flow statistical system based on infrared distance sensor.
Background technology
As the owner of public transport and supvr need real-time, clear, passenger's statistical traffic data, as the foundation of planning, vehicle scheduling, operation management, therefore must have the soft hardware equipment of corresponding passenger flow statistics and via operation analytic system to provide support accurately.Counting passenger flow of buses system be used in public transport automatically, intelligence gathers exactly the get off volume of the flow of passengers, each website volume of the flow of passengers information of getting on the bus and carries out that the information that period statistical management and car operation analyze detects, management system.
Application number is to have described a kind of intelligent video passenger flow analysing method and system in 201210413969.2 Chinese invention patent application, theoretical based on machine vision, by the analyzing and processing to monitor video, obtains passenger flow data; Application number is to have proposed a kind of bus-borne high-precision passenger flow counting device in 200920234513.3 Chinese utility model patent, it adopts Single-chip Controlling far-infrared sensor to add up the passenger that gets on the bus, and adopts the pressure transducer that is placed in upper-lower door place to compensate image data.
Wherein, number of patent application is in 201210413969.2 Chinese invention patent application, the method of Video processing is subject to the impact of the factors such as environment, body oscillating, camera imaging quality, thereby reduces accuracy, real-time and the robustness of passenger flow statistical system; Number of patent application is in 200920234513.3 Chinese utility model patent, although used infrared sensor, but only by simple infrared circuit, will there is passenger through being output as 1, being output as 0 without passenger's process, under complicated passenger flow environment, very easily cause statistics error, affect the degree of accuracy of passenger flow statistical system; And the passenger flow statistical system in these two patents be only statistics passenger flow data, do not relate to the application of the aspects such as the real-time location of public transit vehicle, the wireless transmission of passenger flow data and passenger flow statistics background management system.The present invention therefore.
Summary of the invention
The invention provides a kind of bus passenger flow statistical system based on infrared distance sensor, this system has solved the software algorithm adopting in bus passenger flow statistical system in prior art and has realized complexity, and cost is higher or easy affected by environment or can not flow greatly the problems such as quantitative statistics.
In order to solve these problems of the prior art, technical scheme provided by the invention is:
A kind of bus passenger flow statistical system based on infrared distance sensor, it is characterized in that described system comprises infrared distance sensor module, data processing module and GPS locating module, described infrared distance sensor module, for surveying bus enter and the go out data-signal of place's object, and the data-signal collecting is transferred to data processing module; Described GPS locating module is used for the positional information of Real-time Obtaining bus, and the positional information of bus is sent to data processing module; The data-signal that described data processing module provides according to infrared distance sensor module carries out Treatment Analysis, obtain bus at the appointed time, the number of getting on or off the bus of assigned address turnover bus.
Preferred technical scheme is: described system also comprises data memory module, described data memory module is connected with data processing module, the data message collecting for storing public bus streaming data information, bus positional information and infrared distance sensor module.
Preferred technical scheme is: described system also comprises management of passenger flow platform, data transmission module, described management of passenger flow platform is connected with data processing module by data transmission module, for being responsible for, receiving the volume of the flow of passengers data message of public transit vehicle transmission and analyze, by different demands, generate statistical information and form, and optional printing function is provided, for planning, vehicle scheduling and the operation management of bus system provides foundation.
Preferred technical scheme is: described data transmission module is GPRS module, and described GPRS module utilizes GPRS network that the volume of the flow of passengers data of acquisition are sent to management of passenger flow platform.
Preferred technical scheme is: described infrared distance sensor module comprises that some groups are arranged near the infrared distance sensor of bus upper-lower door, and described infrared distance sensor comprises infrared transmitter, coordinates the PSD detecting device that receives the Infrared reflecting with infrared transmitter.
Another object of the present invention is to provide a kind of bus passenger flow statistical method based on infrared distance sensor, it is characterized in that said method comprising the steps of:
(1) by infrared distance sensor survey bus enter and go out place object data-signal;
(2) positional information of Real-time Obtaining bus;
(3) data-signal of surveying according to infrared distance sensor and the positional information of bus, obtain bus at the appointed time, the number of getting on or off the bus of assigned address turnover bus.
Preferred technical scheme is: the number of getting on or off the bus that the data-signal of surveying according to infrared distance sensor in described method step (3) calculates bus realizes according to following steps:
1) build coordinate system, suppose parallel to the ground and entrance door point to headstock position and with the direction of vehicle body parallel be x axle positive dirction, vertical ground direction is upwards y axle positive dirction; Entrance door points in car and is z axle positive dirction perpendicular to the direction of x axle, every some index value that represents infrared distance sensor on x axle, z axis data represents the different moment, the distance value that y axis data measures for each sensor, crest place in the waveform of supposing to obtain represents passenger position, and definition y axle positive dirction is downward; X-y data are the distance value that synchronization different sensors collects, z-y data be same sensor at the distance value not collecting in the same time, the range data that x-z-y data collect for each infrared distance sensor in certain time period;
2) the x-z-y data that collect in this time period are carried out to filtering and interpolation processing, drawing 3 D graphics, according to the crest place of three-dimensional picture count through patronage, according to the variation judgement passenger's of z-y data and curves direct of travel.
Preferred technical scheme is: described method step 2) specifically according to following steps, carry out:
(1) first the x-t-y data that collect in this time period are carried out to filtering and interpolation processing;
(2) then draw the three-dimensional picture of (x, t, y) data group;
(3) according to the shape of three-dimensional picture, the trough place of three-dimensional data just represents passenger's head position, and trough number just represents the patronage of process in this time period;
(4) according to the variation judgement passenger's of t-y data and curves direct of travel: when data variation changes along t axle positive dirction, illustrate that passenger gets on the bus from entrance door; When data variation changes along t axle negative direction, illustrate that passenger gets off from entrance door.
In order to overcome above-mentioned deficiency, the invention provides a kind of bus passenger flow statistical system based on infrared distance sensor, be intended to solve the problem that the degree of accuracy of bus passenger flow data statistics is affected by passenger flow environment, picture quality etc., the accuracy of raising system, robustness and reliability, and increase that data wireless transmits, the vehicle function such as location, data analysis and back-stage management in real time.
Passenger flow volume statistical system is the effective ways of guest flow statistics, assessment, be used for detecting each website on-board and off-board number of public bus network, passenger and the number of getting on or off the bus in the compartment of analysis specific time period, draw passenger flow direction, quantitative law, improves the efficiency of the operation management of public transport.
Although infrared distance sensor has Multiple Type, but principle of work is all based on principle of triangulation: infrared transmitter is according to certain angular emission infrared beam, after running into object, light beam can reflect, after the Infrared reflecting is detected by PSD detecting device, can obtain an off-set value L, utilize triangle relation, after having specified the focal distance f of emission angle α, offset distance L, center square X and filter, sensor just can calculate by geometric relationship to the distance D of object, that is:
The bus passenger flow statistical system based on infrared distance sensor in the present invention comprises infrared distance sensor module, data processing module, GPS module, GPRS module, data memory module, management of passenger flow platform, infrared distance sensor module wherein, a set of infrared sending and receiving injection device is respectively installed at each bus Qianmen and place, back door, the external emitter of every red chromatography has several infrared distance sensors, and the infrared distance sensor number that install at each car door place is depending on the width of car door;
Data processing module, the data-signal that infrared distance sensor module is collected carries out Treatment Analysis, obtain each bus at a time between the front/rear door number of getting on or off the bus of section, certain website, deposit together to data memory module with the information such as corresponding vehicle location, dwell time;
GPS module, for obtaining the real-time dynamic location information of each bus, not only can in conjunction with according to Vehicular door opening and closing time calculating vehicle in the residence time of certain time, certain website, the scheduling of public transit vehicle, management while being more convenient for accident;
GPRS module, utilize GPRS network that the volume of the flow of passengers data of acquisition are sent to management of passenger flow platform, and regular transmission passenger flow statistics data are provided and transmit in real time two kinds of modes of passenger flow statistics data, for guaranteeing GPRS signal stabilization, GPRS antenna can be arranged on to bus roof position;
Data memory module, comprise two parts data message, wherein a part is the public bus streaming data information of storage, comprises in bus routes, the number-plate number, car operation time, operation process car door opening and shut-in time and vehicle real-time position information, Qianmen in corresponding time period number, the back door data such as number of getting on or off the bus of getting on or off the bus; Another part be infrared distance sensor module at a time between the data message that collects in section;
Management of passenger flow platform, be responsible for to receive the volume of the flow of passengers data message that public transit vehicle sends and also analyzes, and by different demands generation statistical informations and form, and provides optional printing function, for planning, vehicle scheduling and the operation management of bus system provides foundation.
With respect to scheme of the prior art, advantage of the present invention is:
1. in the present invention, the bus passenger flow statistical system based on infrared distance sensor adopts the principle of infrared distance sensor to realize the collection of passenger flow data, improve accuracy and the robustness of passenger flow data statistics, for OA operation analysis theory, passenger flow planning, scheduling, the administrative skill of bus provides practicable solution.
2. the passenger flow volume statistical system in the present invention not only can be applied in public transport aspect, can also be applied in the playgrounds such as megastore, supermarket, tourist attractions, for operator's management and decision provides important referential data.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is the structured flowchart that the present invention is based on the bus passenger flow statistical system of infrared distance sensor;
Fig. 2 the present invention is based on infrared distance sensor fundamental diagram in the bus passenger flow statistical system of infrared distance sensor.
Embodiment
Below in conjunction with specific embodiment, such scheme is described further.Should be understood that these embodiment are not limited to limit the scope of the invention for the present invention is described.The implementation condition adopting in embodiment can be done further adjustment according to the condition of concrete producer, and not marked implementation condition is generally the condition in normal experiment.
Embodiment
As shown in Figure 1, should the bus passenger flow statistical system based on infrared distance sensor comprise infrared distance sensor module, data processing module, GPS module, GPRS module, data memory module, management of passenger flow platform, infrared distance sensor module wherein, a set of infrared sending and receiving injection device is respectively installed at each bus Qianmen and place, back door, the external emitter of every red chromatography has several infrared distance sensors, and the infrared distance sensor number that install at each car door place is depending on the width of car door;
Data processing module, the data-signal that infrared distance sensor module is collected carries out Treatment Analysis, obtain each bus at a time between the front/rear door number of getting on or off the bus of section, certain website, deposit together to data memory module with the information such as corresponding vehicle location, dwell time;
GPS module, for obtaining the real-time dynamic location information of each bus, not only can in conjunction with according to Vehicular door opening and closing time calculating vehicle in the residence time of certain time, certain website, the scheduling of public transit vehicle, management while being more convenient for accident;
GPRS module, utilize GPRS network that the volume of the flow of passengers data of acquisition are sent to management of passenger flow platform, and regular transmission passenger flow statistics data are provided and transmit in real time two kinds of modes of passenger flow statistics data, for guaranteeing GPRS signal stabilization, GPRS antenna can be arranged on to bus roof position;
Data memory module, comprise two parts data message, wherein a part is the public bus streaming data information of storage, comprises in bus routes, the number-plate number, car operation time, operation process car door opening and shut-in time and vehicle real-time position information, Qianmen in corresponding time period number, the back door data such as number of getting on or off the bus of getting on or off the bus; Another part be infrared distance sensor module at a time between the data message that collects in section;
Management of passenger flow platform, be responsible for to receive the volume of the flow of passengers data message that public transit vehicle sends and also analyzes, and by different demands generation statistical informations and form, and provides optional printing function, for planning, vehicle scheduling and the operation management of bus system provides foundation.
Figure 2 shows that infrared distance sensor principle of work schematic diagram.For making the workflow narration of the bus passenger flow statistical system based on infrared distance sensor convenient, first do following explanation:
1. when having passenger through out-of-date, the signal that infrared distance sensor collects is output as the magnitude of voltage corresponding with distance value size, for ease of data processing, according to selected infrared distance sensor parameter, magnitude of voltage is converted into distance value.
2. the infrared sending and receiving injection device at entrance door place of take is example, first define the change in coordinate axis direction of using in following narration: entrance door point to headstock position and with the direction of vehicle body parallel be x axle positive dirction, direction on vertical-horizontal alignment is y axle positive dirction, entrance door sensing driver's chair is that z axle (is its physical significance of statement perpendicular to the direction of x axle, below be designated as t axle) positive dirction, every some index value that represents infrared distance sensor on x axle, t axis data represents the different moment, the distance value that y axis data measures for each sensor, for being consistent with actual conditions, make the crest place (reality is the trough place of range data) in figure represent passenger position, definition y axle positive dirction is downward, in fact, x-y data are the distance value that synchronization different sensors collects, t-y data be same sensor at the distance value not collecting in the same time, the range data that x-t-y data collect for each infrared distance sensor in certain time period.
3. getting on or off the bus in a large number in video of gathering, when fewer in number, get on or off the bus when smooth and easy, every passenger getting on/off time is respectively 3s-4s, considers congested conditions, it is a time period that the data processing in the present embodiment is got 5s.
Provide the workflow of the bus passenger flow statistical system that the present invention is based on infrared distance sensor below:
1. the width of the infrared distance sensor of selecting in the present embodiment is 44mm, through test of many times, distance between two sensors is decided to be 88mm, can guarantee that the data that two sensors collect are independent of each other, can guarantee again the continuity of data and the accuracy of passenger flow statistics result, the width 0.8m of the entrance door of instruction carriage used in the present embodiment of take is example, needs to install 6 infrared distance sensors.
2. in the present embodiment, lifting mode is taked in the installation of passenger flow statistical system device, the height of the infrared distance sensor of selecting is 22mm, the scope of measuring distance is 0.2m-1.5m, the inside height of the carbody 2.3m of instruction carriage used in the present embodiment of take is example, can measure the passenger of height scope between 0.55m-1.85m.
3. when public transit vehicle started for the first time since every day, passenger flow volume statistical system is started working, infrared distance sensor also starts image data, simultaneously, by GPS module, can obtain in real time the dynamic location information of vehicle, and the positional information of public transit vehicle is sent to management of passenger flow platform in real time stores and show.
4. after infrared distance sensor collects data, take 5s as a time period, data processed and analyzed:
(1) first the x-t-y data that collect in this time period are carried out to filtering and interpolation processing;
(2) then draw the three-dimensional picture of (x, t, y) data group;
(3) according to the shape of three-dimensional picture, the trough place of three-dimensional data just represents passenger's head position, and trough number just represents the patronage of process in this time period;
(4) according to the variation judgement passenger's of t-y data and curves direct of travel: when data variation changes along t axle positive dirction, illustrate that passenger gets on the bus from entrance door; When data variation changes along t axle negative direction, illustrate that passenger gets off from entrance door.So just can differentiate the situation that get off in the place of visiting and Xia Menchu gets on the bus, make passenger flow statistics data more accurate.
5. pass through said method, can draw in random time section the entrance door place of vehicle number and the exit door place number of getting on or off the bus of getting on or off the bus, in conjunction with vehicle real-time position information, passenger flow statistics data have just been obtained, these data are deposited to data memory module, the present embodiment is chosen the mode of regular transmission data, before each bus stops operation every day by passenger flow data by the wireless management of passenger flow platform that is sent to backstage of GPRS.
6. in management of passenger flow platform, the data messages such as position at any time of certain bus that can a real time inspection public bus network, demographics information, can also to passenger flow data, analyze according to demand, generate printable statistical information and form, for vehicle scheduling and management provide foundation.
Above-mentioned example is only explanation technical conceive of the present invention and feature, and its object is to allow person skilled in the art can understand content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalent transformations that Spirit Essence is done according to the present invention or modification, within all should being encompassed in protection scope of the present invention.
Claims (7)
1. the bus passenger flow statistical system based on infrared distance sensor, it is characterized in that described system comprises infrared distance sensor module, data processing module and GPS locating module, described infrared distance sensor module, for surveying bus enter and the go out data-signal of place's object, and the data-signal collecting is transferred to data processing module; Described GPS locating module is used for the positional information of Real-time Obtaining bus, and the positional information of bus is sent to data processing module; The data-signal that described data processing module provides according to infrared distance sensor module carries out Treatment Analysis, obtain bus at the appointed time, the number of getting on or off the bus of assigned address turnover bus.
2. the bus passenger flow statistical system based on infrared distance sensor according to claim 1, it is characterized in that described system also comprises data memory module, described data memory module is connected with data processing module, the data message collecting for storing public bus streaming data information, bus positional information and infrared distance sensor module.
3. the bus passenger flow statistical system based on infrared distance sensor according to claim 1, it is characterized in that described system also comprises management of passenger flow platform, data transmission module, described management of passenger flow platform is connected with data processing module by data transmission module, for being responsible for, receiving the volume of the flow of passengers data message of public transit vehicle transmission and analyze, by different demands, generate statistical information and form, and optional printing function is provided, for planning, vehicle scheduling and the operation management of bus system provides foundation.
4. the bus passenger flow statistical system based on infrared distance sensor according to claim 3, is characterized in that described data transmission module is GPRS module, and described GPRS module utilizes GPRS network that the volume of the flow of passengers data of acquisition are sent to management of passenger flow platform.
5. the bus passenger flow statistical system based on infrared distance sensor according to claim 3, it is characterized in that described infrared distance sensor module comprises that some groups are arranged near the infrared distance sensor of bus upper-lower door, described infrared distance sensor comprises infrared transmitter, coordinates the PSD detecting device that receives the Infrared reflecting with infrared transmitter.
6. the bus passenger flow statistical method based on infrared distance sensor, is characterized in that said method comprising the steps of:
(1) by infrared distance sensor survey bus enter and go out place object data-signal;
(2) positional information of Real-time Obtaining bus;
(3) data-signal of surveying according to infrared distance sensor and the positional information of bus, obtain bus at the appointed time, the number of getting on or off the bus of assigned address turnover bus.
7. method according to claim 6, is characterized in that the number of getting on or off the bus that the data-signal of surveying according to infrared distance sensor in described method step (3) calculates bus realizes according to following steps:
1) build coordinate system, suppose parallel to the ground and entrance door point to headstock position and with the direction of vehicle body parallel be x axle positive dirction, vertical ground direction is upwards y axle positive dirction; Entrance door points in car and is z axle positive dirction perpendicular to the direction of x axle, every some index value that represents infrared distance sensor on x axle, z axis data represents the different moment, the distance value that y axis data measures for each sensor, crest place in the waveform of supposing to obtain represents passenger position, and definition y axle positive dirction is downward; X-y data are the distance value that synchronization different sensors collects, z-y data be same sensor at the distance value not collecting in the same time, the range data that x-z-y data collect for each infrared distance sensor in certain time period;
2) the x-z-y data that collect in this time period are carried out to filtering and interpolation processing, drawing 3 D graphics, according to the crest place of three-dimensional picture count through patronage, according to the variation judgement passenger's of z-y data and curves direct of travel.
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| CN108665051A (en) * | 2018-06-06 | 2018-10-16 | 东北林业大学 | A kind of bus passenger flow amount statistical method based on electro-optical distance measurement sensor |
| CN109460811A (en) * | 2018-09-26 | 2019-03-12 | 北京文香信息技术有限公司 | A kind of passenger flow statistic device and passenger flow statistical method, storage medium |
| CN110490110A (en) * | 2019-01-29 | 2019-11-22 | 王馨悦 | Passenger flow counting device and method based on ergonomic characteristics' detection |
| CN110044258A (en) * | 2019-03-27 | 2019-07-23 | 苏州清研微视电子科技有限公司 | Freight compartment vacant capacity intelligent detecting method and system |
| CN113470222A (en) * | 2021-05-24 | 2021-10-01 | 支付宝(杭州)信息技术有限公司 | Public transport vehicle passenger flow statistical system and method |
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