CN108205883A - It is a kind of to be lined up guiding system and method - Google Patents

It is a kind of to be lined up guiding system and method Download PDF

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Publication number
CN108205883A
CN108205883A CN201711471920.1A CN201711471920A CN108205883A CN 108205883 A CN108205883 A CN 108205883A CN 201711471920 A CN201711471920 A CN 201711471920A CN 108205883 A CN108205883 A CN 108205883A
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China
Prior art keywords
queue
density
queuing
built
given threshold
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CN201711471920.1A
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Chinese (zh)
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宋天阔
阮强
王龙河
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Individual
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Priority to CN201711471920.1A priority Critical patent/CN108205883A/en
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    • GPHYSICS
    • G08SIGNALLING
    • G08GTRAFFIC CONTROL SYSTEMS
    • G08G1/00Traffic control systems for road vehicles
    • G08G1/22Platooning, i.e. convoy of communicating vehicles

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Train Traffic Observation, Control, And Security (AREA)

Abstract

The present invention discloses a kind of be lined up and guides system and method.The system includes:Multiple built-in type infrared sensors, controller, display;The built-in type infrared sensor be divided into it is multigroup, every group include multiple built-in type infrared sensors;Every group of built-in type infrared sensor is set to the subsurface of each queue queue;The signal output end of the built-in type infrared sensor is connect with the signal input part of the controller;The controller is used to determine the queuing density of each queue queue, and generate queuing guidance information according to the signal output of every group of built-in type infrared sensor;First output terminal of the controller is connect with the display, for the display to be controlled to show the queuing guidance information.System and method using the present invention is lined up personnel and selects the less queue of queue number according to the guidance information that display is shown when being lined up, improve the efficiency of queuing, also improves the working efficiency of operation window.

Description

It is a kind of to be lined up guiding system and method
Technical field
The present invention relates to technical field of transportation, and guiding system and method is lined up more particularly to a kind of.
Background technology
With the increase of the density of population, present public place many times needs to be lined up, and compares particularly with troop is lined up When more, staff is needed to do corresponding guiding.Such as tourist attractions booking window, railway station booking window, train It stands the places such as portal, subway platform.By taking subway platform as an example, subway platform passenger, which is lined up, to be distributed there are non-uniform situation, So that passenger's density of certain parts is higher on platform, passenger comfort reduces, and even results in the reduction of subway overall operation efficiency. In order to solve the problems, such as this, current subway station platform majority is used to be drawn by platform broadcast or staff or volunteer's progress scene It leads, but in a practical situation, the limited view of Field Force, and scientific and reasonable boot scheme can not be provided in due course.Therefore, Cause subway circulation inefficient, and comfort of passenger is low.
Invention content
Guiding system and method is lined up the object of the present invention is to provide a kind of, to provide the working efficiency of operation window, is carried The queuing efficiency of high queuing personnel.
To achieve the above object, the present invention provides following schemes:
A kind of queuing guiding system, the system comprises:Multiple built-in type infrared sensors, controller, display;
The built-in type infrared sensor be divided into it is multigroup, every group include multiple built-in type infrared sensors;Every group of built-in type Infrared sensor is set to the subsurface of each queue queue;
The signal output end of the built-in type infrared sensor is connect with the signal input part of the controller;
The controller is used to determine the row of each queue queue according to the signal output of every group of built-in type infrared sensor Team's density, and generate queuing guidance information;
The output terminal of the controller is connect with the display, and for the display to be controlled to show, described be lined up guides Information.
Optionally, multiple built-in type infrared sensor spaced sets of every group of built-in type infrared sensor.
Optionally, the display includes multiple, and the top of each queue queue sets a display, Mei Gesuo Display is stated for showing the queuing guidance information of current queue queue.
Optionally, the queuing guidance information includes:Wait in line information and recommend queueing message.
Optionally, the system also includes:Voice broadcast equipment, the input terminal of the voice broadcast equipment connect the control The second output terminal of device processed, the voice broadcast equipment are used to report the queuing guidance information of the controller generation.
The present invention also provides a kind of queuing bootstrap technique, the method is applied to above-mentioned system, the method includes:
Obtain the output signal of every group of built-in type infrared sensor;
The density of each queue queue is determined according to the output signal;
The density for judging whether to meet each queue queue is all higher than given threshold, obtains the first judging result;
When first judging result represents that the density of each queue queue is all higher than given threshold, generation is waited in line Information;It is described to wait in line information for queuing personnel to be guided to be lined up in current queue;
When first judging result represents that the density of each queue queue is not more than given threshold entirely, judge whether full The density of each queue queue of foot is respectively less than given threshold, obtains the second judging result;
When second judging result represents that the density of each queue queue is respectively less than given threshold, the queuing is generated Outstanding message;
When second judging result represents that the density of each queue queue is not less than given threshold entirely, it is small to obtain density It is not less than the queue queue of the given threshold in the queue queue of the given threshold and density;
Wait in line information according to the density is less than queue queue's information generation of the given threshold;The row The queuing personnel that team's outstanding message is used for the queue queue that density is guided to be less than the given threshold are lined up in current queue;
Queueing message is recommended according to queue queue information generation of the density not less than the given threshold;The recommendation Queueing message is used to that density to be guided density to be gone to be less than the setting not less than the queuing personnel of the queue queue of the given threshold The queue queue of threshold value is lined up;
Drawn according to the queuing for waiting in line information and the recommendation queueing message control display display current queue Lead information.
Optionally, the output signal for obtaining every group of built-in type infrared sensor, specifically includes:
By the level signal of each built-in type infrared sensor output of group acquisition.
Optionally, the density that each queue queue is determined according to the output signal, specifically includes:
Obtain the high level signal quantity of every group of built-in type infrared sensor output;
Every group of output is determined according to the number of every group of built-in type infrared sensor and the high level signal quantity of the output High level signal accounting;
The accounting of the high level signal of every group of output is determined as the corresponding row of current built-in type infrared sensor group The density of team's queue.
Optionally, it is described to recommend to be lined up letter according to queue queue information generation of the density not less than the given threshold Breath, specifically includes:
It obtains density and is less than queue nearest with current queue in queue queue's information of the given threshold;It is described current The density of queue is not less than the queue queue of the given threshold;
Using the nearest queuing message as the queue recommended, the recommendation queueing message of the current queue is generated.
Optionally, wait in line information described in the basis and the recommendation queueing message control display shows current team After the queuing guidance information of row, further include:
Wait in line information according to described and described queueing message control voice is recommended to report equipment report current queue It is lined up guidance information.
According to specific embodiment provided by the invention, the invention discloses following technique effects:
By the queueing message of display real-time display current queue, it is lined up what personnel showed when being lined up according to display The less queue of guidance information selection queue number improves the efficiency of queuing, also improves the working efficiency of operation window.Such as Booking window improves the efficiency of vote buying;Such as subway platform, improve the efficiency that passenger rides.
Description of the drawings
It in order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to institute in embodiment Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the present invention Example, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these attached drawings Obtain other attached drawings.
Fig. 1 is the structure diagram that the present invention is lined up guiding system;
Fig. 2 is the flow diagram that the present invention is lined up bootstrap technique.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work Embodiment shall fall within the protection scope of the present invention.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, it is below in conjunction with the accompanying drawings and specific real Applying mode, the present invention is described in further detail.
Fig. 1 is the structure diagram that the present invention is lined up guiding system.As shown in Figure 1, the system comprises:Multiple built-in types Infrared sensor 1, controller 2, display 3.
The built-in type infrared sensor 1 divides to be multigroup, and every group includes multiple built-in type infrared sensors;Every group of built-in type Infrared sensor is set to the subsurface of each queue queue;As shown in fig. 1, each group of built-in type infrared sensor is all set In the ground of queue queue 4 in the following, for subway station, built-in type infrared sensor is embedded on subway platform, and is distributed Before each shield door, the built-in type infrared sensor before each shield door is divided into one group, how many shield door is then divided into how many Group, and detection direction is embedded in subway platform ground 4 upwards perpendicular to pre-.
The signal output end of the built-in type infrared sensor 1 is connect with the signal input part of the controller 2;The control Device 2 processed is used to determine the queuing density of each queue queue, and generate according to the signal output of every group of built-in type infrared sensor 1 It is lined up guidance information.For each built-in type infrared sensor 1, have above it in the case that passenger blocks, high electricity can be exported Ordinary mail number gives controller 2, and then, controller 2 counts the quantity of the built-in type infrared sensor 1 of each group of output high level, most Afterwards, the passengers quantity before each shield door is obtained, the quantity being blocked in the grouping of built-in type infrared sensor is as corresponded to, into one Step acquires the queuing density of each queue queue.
First output terminal of the controller 2 is connect with the display 3, described for the display 3 to be controlled to show It is lined up guidance information.The special control computer of 2 generally use of controller can also use other control devices.Special control computer (controller 2), by given algorithm, obtains guidance information, and be output to queue according to the passengers quantity of each queue On corresponding display 3.
By taking subway station as an example, concrete implementation step is:First, it is laid in the above the fold of each shield door of platform Platform display, later, using but be not limited to the communications protocol such as serial ports, VGA, HDMI, by each display and special control electricity Brain is attached, and finally, the guidance information being calculated is converted into graphical information by special control computer, is transferred to each shielding On platform display in front of the door.
In this system in addition to display 3 shows guidance information, the system also includes:Voice broadcast equipment.Institute's predicate Sound reports the second output terminal of the input terminal connection controller 2 of equipment, and the voice broadcast equipment is used to report the control The queuing guidance information that device 2 processed generates.Using sound prompting, voice signal is accordingly generated according to guidance information, is set by voice Standby to play corresponding voice, display 3 coordinates with speech ciphering equipment, and collaboration guiding passenger waits.In the specific implementation, display 3 Can have following functions:Show that platform where it is waited the density of passenger;Direction of waiting is recommended in instruction;Display waits number most Few platform.Voice broadcast equipment can include following functions:Prompt platform fewer in number of waiting;Prompt train reach with from Open information;Prompt passengers are taken care.
Open-wire line can be used in each connection cables in this system or concealed wire mode connects up, and also can wirelessly carry out Data transmission.
The present invention also provides a kind of queuing bootstrap technique, the method is applied to above-mentioned guiding system.Fig. 2 is arranged for the present invention The flow diagram of team's bootstrap technique.As shown in Fig. 2, the method includes:
Step 100:Obtain the output signal of every group of built-in type infrared sensor.Each built-in type infrared sensing is obtained by group The level signal of device output, every group of built-in type infrared sensor are set to the subsurface of each queue queue.
Step 200:The density of each queue queue is determined according to the output signal.
Detailed process is:
Obtain the high level signal quantity of every group of built-in type infrared sensor output;
Every group of output is determined according to the number of every group of built-in type infrared sensor and the high level signal quantity of the output High level signal accounting;
The accounting of the high level signal of every group of output is determined as the corresponding row of current built-in type infrared sensor group The density of team's queue.
For each built-in type infrared sensor, have above it in the case that passenger blocks, high level signal can be exported, Quantity by the built-in type infrared sensor for counting each group of output high level can obtain the density of queue queue.
Step 300:The density for judging whether to meet each queue queue is all higher than given threshold, if so, performing step 400;If not, perform step 500.Given threshold can be that percentage may be number.For example, 80% is can be set as, Then judge whether that the queuing density of personnel for meeting each queue queue is more than 80% at this time;Given threshold can also be set as 4 People, it is more than 4 people to judge whether the queuing personnel for meeting each queue queue at this time.
Step 400:Information is waited in line in generation.When each queue queue number is more, it is not recommended that replace queue row Team suggests that queuing personnel continue to be lined up in current queue at this time, should not be crowded.
Step 500:The density for judging whether to meet each queue queue is respectively less than given threshold, if so, performing step 400;If not, perform step 600.This step judges whether that the queuing personnel of each queue queue are less.When each queue When queuing personnel are less, it is not recommended that replace queue and be lined up, suggest that queuing personnel continue to be lined up in current queue at this time, Bu Yaoyong It squeezes.
Step 600:Density is obtained less than the queue queue of the given threshold and density not less than the given threshold Queue queue.When the queue that has, to be lined up personnel more, some queues be lined up personnel it is less when, need the more team of the personnel of being lined up The personnel of row are guided to the less queue of queuing personnel.Therefore, obtain the less queue of queuing personnel first and be lined up personnel compared with More queues.
Step 700:Generation waits in line information and recommends queueing message.The queue less for being lined up personnel, still not Recommended replacement queue is lined up, and suggests that queuing personnel continue to be lined up in current queue at this time, should not be crowded.It is more for being lined up personnel Queue, provide the queue of recommendation, queuing personnel guided to convert queue queue.The queue of recommendation, typically closer to the distance and people Number difference is more than the queue of two people.It specifically includes:
It obtains density and is less than queue nearest with current queue in queue queue's information of the given threshold;It is described current The density of queue is not less than the queue queue of the given threshold;
Using the nearest queuing message as the queue recommended, the recommendation queueing message of the current queue is generated.
Step 800:Display is controlled to show the queuing guidance information of current queue.Voice broadcast equipment is reported current simultaneously The queuing guidance information of queue.Be particularly shown device display be lined up the report content of guidance information and voice broadcast equipment can be according to Content shown in following table.
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with other The difference of embodiment, just to refer each other for identical similar portion between each embodiment.
Specific case used herein is expounded the principle of the present invention and embodiment, and above example is said The bright method and its core concept for being merely used to help understand the present invention;Meanwhile for those of ordinary skill in the art, foundation The thought of the present invention, in specific embodiments and applications there will be changes.In conclusion the content of the present specification is not It is interpreted as limitation of the present invention.

Claims (10)

1. a kind of queuing guiding system, which is characterized in that the system comprises:Multiple built-in type infrared sensors, are shown controller Show device;
The built-in type infrared sensor be divided into it is multigroup, every group include multiple built-in type infrared sensors;Every group of built-in type is infrared Sensor is set to the subsurface of each queue queue;
The signal output end of the built-in type infrared sensor is connect with the signal input part of the controller;
The controller is used to determine that the queuing of each queue queue is close according to the signal output of every group of built-in type infrared sensor Degree, and generate queuing guidance information;
First output terminal of the controller is connect with the display, and for the display to be controlled to show, described be lined up guides Information.
2. system according to claim 1, which is characterized in that multiple built-in types of every group of built-in type infrared sensor Infrared sensor spaced set.
3. system according to claim 1, which is characterized in that the display include it is multiple, each queue queue it is upper One display of side's setting, each display are used to show the queuing guidance information of current queue queue.
4. system according to claim 3, which is characterized in that the queuing guidance information includes:Wait in line information and Recommend queueing message.
5. system according to claim 1, which is characterized in that the system also includes:Voice broadcast equipment, the voice The input terminal for reporting equipment connects the second output terminal of the controller, and the voice broadcast equipment is used to report the controller The queuing guidance information of generation.
6. a kind of queuing bootstrap technique, which is characterized in that the method is applied to claim 1-4 any one of them systems, The method includes:
Obtain the output signal of every group of built-in type infrared sensor;
The density of each queue queue is determined according to the output signal;
The density for judging whether to meet each queue queue is all higher than given threshold, obtains the first judging result;
When first judging result represents that the density of each queue queue is all higher than given threshold, letter is waited in line in generation Breath;It is described to wait in line information for queuing personnel to be guided to be lined up in current queue;
When first judging result represents that the density of each queue queue is not more than given threshold entirely, judge whether to meet every The density of a queue queue is respectively less than given threshold, obtains the second judging result;
When second judging result represents that the density of each queue queue is respectively less than given threshold, wait in line described in generation Information;
When second judging result represents that the density of each queue queue is not less than given threshold entirely, obtain density and be less than institute It states the queue queue of given threshold and density is not less than the queue queue of the given threshold;
Wait in line information according to the density is less than queue queue's information generation of the given threshold;Described queuing etc. The queuing personnel of queue queue that information is treated for density to be guided to be less than the given threshold are lined up in current queue;
Queueing message is recommended according to queue queue information generation of the density not less than the given threshold;It is described to recommend to be lined up Information is used to that density to be guided density to be gone to be less than the given threshold not less than the queuing personnel of the queue queue of the given threshold Queue queue be lined up;
Wait in line information and the queuing guiding letter that queueing message control display is recommended to show current queue according to described Breath.
7. the according to the method described in claim 6, it is characterized in that, output letter for obtaining every group of built-in type infrared sensor Number, it specifically includes:
By the level signal of each built-in type infrared sensor output of group acquisition.
8. the method according to the description of claim 7 is characterized in that described determine each queue queue according to the output signal Density, specifically include:
Obtain the high level signal quantity of every group of built-in type infrared sensor output;
The height of every group of output is determined according to the high level signal quantity of the number of every group of built-in type infrared sensor and the output The accounting of level signal;
The accounting of the high level signal of every group of output is determined as the corresponding queuing team of current built-in type infrared sensor group The density of row.
9. according to the method described in claim 6, it is characterized in that, described be not less than the given threshold according to the density Queueing message is recommended in queue queue's information generation, specifically includes:
It obtains density and is less than queue nearest with current queue in queue queue's information of the given threshold;The current queue Density be not less than the given threshold queue queue;
Using the nearest queuing message as the queue recommended, the recommendation queueing message of the current queue is generated.
10. according to the method described in claim 6, it is characterized in that, wait in line information and the recommendation described in the basis After queueing message control display shows the queuing guidance information of current queue, further include:
Wait in line information and the queuing that queueing message control voice is recommended to report equipment report current queue according to described Guidance information.
CN201711471920.1A 2017-12-29 2017-12-29 It is a kind of to be lined up guiding system and method Pending CN108205883A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108898726A (en) * 2018-07-22 2018-11-27 薛永芳 A kind of uniform queuing guide device for being lined up troop
CN109003384A (en) * 2018-07-22 2018-12-14 薛永芳 A kind of queuing guide device registered for hospital
CN109064619A (en) * 2018-07-22 2018-12-21 薛永芳 A kind of multiwindow queuing guide device
CN109087434A (en) * 2018-07-22 2018-12-25 薛永芳 A kind of queuing guide device of limitation number
CN112735019A (en) * 2021-01-20 2021-04-30 联仁健康医疗大数据科技股份有限公司 Queuing guidance method, device, system, electronic equipment and storage medium

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205490906U (en) * 2015-12-30 2016-08-17 生迪智慧科技有限公司 System and intelligent LED lamp are dredged to passenger flow
CN206193179U (en) * 2016-11-14 2017-05-24 无锡爱睿芯电子有限公司 Which comprises a housin,
CN107025712A (en) * 2017-04-17 2017-08-08 大辅科技(北京)有限公司 Many toilet queuing separate systems and queuing shunt method
PL416408A1 (en) * 2016-03-07 2017-09-11 Paweł Sitko Q-monitor queuing module
CN107215363A (en) * 2017-06-12 2017-09-29 中国联合网络通信集团有限公司 Passenger's queuing bootstrap technique and guiding system in a kind of subway station

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205490906U (en) * 2015-12-30 2016-08-17 生迪智慧科技有限公司 System and intelligent LED lamp are dredged to passenger flow
PL416408A1 (en) * 2016-03-07 2017-09-11 Paweł Sitko Q-monitor queuing module
CN206193179U (en) * 2016-11-14 2017-05-24 无锡爱睿芯电子有限公司 Which comprises a housin,
CN107025712A (en) * 2017-04-17 2017-08-08 大辅科技(北京)有限公司 Many toilet queuing separate systems and queuing shunt method
CN107215363A (en) * 2017-06-12 2017-09-29 中国联合网络通信集团有限公司 Passenger's queuing bootstrap technique and guiding system in a kind of subway station

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108898726A (en) * 2018-07-22 2018-11-27 薛永芳 A kind of uniform queuing guide device for being lined up troop
CN109003384A (en) * 2018-07-22 2018-12-14 薛永芳 A kind of queuing guide device registered for hospital
CN109064619A (en) * 2018-07-22 2018-12-21 薛永芳 A kind of multiwindow queuing guide device
CN109087434A (en) * 2018-07-22 2018-12-25 薛永芳 A kind of queuing guide device of limitation number
CN112735019A (en) * 2021-01-20 2021-04-30 联仁健康医疗大数据科技股份有限公司 Queuing guidance method, device, system, electronic equipment and storage medium

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