CN104680712A - Anti-trampling prewarning system for people crowded region and implementation method for anti-treading prewarning system - Google Patents

Anti-trampling prewarning system for people crowded region and implementation method for anti-treading prewarning system Download PDF

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Publication number
CN104680712A
CN104680712A CN201510045181.4A CN201510045181A CN104680712A CN 104680712 A CN104680712 A CN 104680712A CN 201510045181 A CN201510045181 A CN 201510045181A CN 104680712 A CN104680712 A CN 104680712A
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China
Prior art keywords
people
controller
crowd
region
infrared sensor
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CN201510045181.4A
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Chinese (zh)
Inventor
吕恩利
陆华忠
田庆立
赵俊宏
吴慕春
刘妍华
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华南农业大学
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Priority to CN201510045181.4A priority Critical patent/CN104680712A/en
Publication of CN104680712A publication Critical patent/CN104680712A/en

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    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00Alarms responsive to a single specified undesired or abnormal operating condition and not elsewhere provided for
    • G08B21/02Alarms for ensuring the safety of persons

Abstract

The invention relates to an anti-trampling prewarning system for a people crowded region and an implementation method for the anti-trampling prewarning system. The prewarning system comprises a controller, a people density detection module and an alarming device, wherein the controller is connected with the people density detection module and the alarming device respectively, judges the people density gradient of the people crowded region according to a detection signal of the people density detection module and controls the alarming device according to the people density gradient; the people density detection module consists of an infrared sensor and a pressure sensor; the infrared sensor is mounted at a relatively flat opening part of the people crowded region; the pressure sensor is placed in an induction region of the infrared sensor. The anti-trampling prewarning system has the characteristics of simple structure, high reaction speed, low cost and good use effect, and can monitor the people density more accurately and effectively solve the problem of people trampling.

Description

The crowd is dense, and region prevents trampling early warning system and its implementation

Technical field

The present invention relates to and prevent trampling early warning technology, one utilizes sensor technology to detect flow of the people specifically, takes the early warning technology of corresponding measure according to flow of the people size.

Background technology

China is a populous nation, and the event caused casualties because of crowded trampling happens occasionally, and does not currently have a kind of effective measure to address this problem.In open paper, mainly contain two kinds of Pedestrian flow detection modes, a kind of flow of the people situation adopted in multi-sensor monitoring personnel side-by-side pattern situation; Another kind of by video surveillance stroke analysis flow of the people.The common feature of above-mentioned two kinds of Pedestrian flow detection modes is to have measured the number of personnel comparatively accurately, its measuring accuracy is relatively high, but expense is also relatively high, and when densely populated place being detected, the emergency center also needing manual notifications to be correlated with starts corresponding emergency measure.

Summary of the invention

An object of the present invention is to overcome the high defect of existing Pedestrian flow detection technical costs, proposition crowd close quarters is anti-tramples early warning system, people's current density in the crowd is dense region is monitored, send different monitor signals, take appropriate measures according to different monitor signals, thus reach the object of early warning, there is the features such as convenient, fast, efficient.

Two of object of the present invention is to overcome the high defect of existing Pedestrian flow detection technical costs, proposes crowd's close quarters and prevents the implementation method of trampling early warning system.

Crowd's close quarters of the present invention prevents that trampling early warning system adopts following technical scheme: the crowd is dense, and region prevents trampling early warning system, comprises controller, stream of people's Density Detection module and warning device; Described controller is connected with stream of people's Density Detection module, warning device respectively, according to stream of people's density gradient in the detection signal of the stream of people's Density Detection module region that judges that the crowd is dense, then controls warning device according to stream of people's density gradient.

Described stream of people's Density Detection module comprises the infrared sensor and pressure transducer that are connected with described controller input end respectively; The open place of relatively flat in described infrared sensor is arranged on that the crowd is dense region, its transmitting terminal sends light signal, receiving end receiving optical signals, and light signal is converted into electric signal exports to controller; Described pressure transducer is positioned in the induction region of infrared sensor, exports to controller after detecting to the force value in described induction region; The force value of the electric signal that described controller inputs according to infrared sensor and pressure transducer input judges stream of people's density gradient.

Described infrared sensor is provided with many groups, and pressure transducer is provided with many groups.In described many group infrared sensor symmetries are arranged on that the crowd is dense region.

Preferably, often equidistant installation is carried out between group infrared sensor.

Described pressure transducer is evenly arranged in the induction region of infrared sensor.

The judgement of described controller to stream of people's density gradient is as follows:

When only having less than 2 groups or 2 groups infrared sensors not receive light signal, controller judges that people's current density is relatively little; When there being 3 to 4 group infrared sensors not receive light signal, and when the force value that the pressure transducer in these infrared sensor induction regions detects exceeds setting value, controller judges that people's current density is higher; When there being 5 to 6 group infrared sensors not receive light signal, and when the force value that the pressure transducer in these infrared sensor induction regions detects exceeds setting value, controller judges that the stream of people is crowded; When there being 7 to 8 group infrared sensors not receive light signal, and when the force value that these infrared sensors induction territory district pressure transducer detects exceeds setting value, controller judges that the stream of people is extremely crowded.

The implementation method that crowd's close quarters of the present invention prevents trampling early warning system adopts following technical scheme:

S1, Initialize installation;

S2, controller arrange stream of people's density gradient, people's current density are divided into low, higher, crowded, extremely crowded;

S3, detect people current density by infrared sensor, pressure transducer, the force value that the light signal detect infrared sensor and pressure transducer detect sends controller to, enters step S4;

S4, controller process the light signal of input and force value, force value are compared with setting value, enter step S5;

S5, controller judge the gradient residing for people's current density according to the comparative result of step S4, when people's current density is low, enter step S9, when people's current density is higher, enter step S6, when people's current density is crowded, enter step S7, when people's current density is extremely crowded, enter step S8;

S6, controller judge that people's current density is as time higher, and the administrative office to this region gives the alarm, and informs neighbouring staff, remind staff to carry out Emergency Preparedness;

When S7, controller judge that people's current density is crowded, give the alarm to public security bureau, Emergency Preparedness is carried out at public security bureau's emergency processing center, prepares Evacuation at any time;

S8, controller judge that people's current density is as time extremely crowded, gives the alarm to government emergency processing enter, public security system emergency center and this district management place, immediate evacuation crowd;

S9, controller control the closedown of warning device, return step S3.

Compared with existing Pedestrian flow detection technology, tool of the present invention has the following advantages and beneficial effect:

1, for the crowd is dense region, without the need to accurately measuring the number of the stream of people, i.e. flow of the people, only needs the density size of monitoring the stream of people, thus takes appropriate measures and reach the object of early warning.

Owing to only needing the density of monitoring the stream of people, therefore the present invention has the advantages that structure is simple, with low cost and early warning is effective; In addition, can arrange the monitoring point of multiple people's current density easily in crowded region, therefore the present invention also has the fast feature of reaction velocity.

2, adopt the density of sensor technology to the stream of people to monitor, within 24 hours, can work, can carry out in real time the monitoring of people's current density, be convenient to different emergency center and take different measures to process.

Accompanying drawing explanation

Fig. 1 (a), (b) prevent the components and parts scheme of installation trampling early warning system for crowd's close quarters of the present invention;

Fig. 2 is the control structure figure that crowd's close quarters of the present invention prevents trampling early warning system;

Fig. 3 is the control circuit figure that crowd's close quarters of the present invention prevents trampling early warning system;

Fig. 4 is the process flow diagram that crowd's close quarters of the present invention prevents trampling early warning system implementation method.

Embodiment

Below in conjunction with embodiment and accompanying drawing, patent of the present invention is described further, but embodiments of the present invention are not limited thereto.

Embodiment

As shown in Fig. 1 (a), Fig. 1 (b), crowd's close quarters of the present invention is anti-tramples early warning system, mainly comprise eight groups of infrared sensors 1,2,3,4,5,6,7,8, eight groups of pressure transducers 9,10,11,12,13,14,15,16, and the relay be arranged in pulpit and relay box 17, warning device 18, generator 19, accumulator 20 and Programmable Logic Controller 21.Infrared sensor and pressure transducer are arranged on that the crowd is dense region, as the relevant position on square.Relay is arranged in relay box, avoids relay to expose to the sun and rain for a long time, causes the damage of relay, thus the normal work of influential system; Relay box is placed on the madial wall of pulpit; Programmable Logic Controller is placed in pulpit.

Supply module is powered primarily of external power source, need to be equipped with generator simultaneously, external power source is except powering to whole system, also the accumulator as energy-storage module to be full of electricity, during with anti-power failure, system cisco unity malfunction, generator is longer at power-off time, accumulator electric-quantity is not enough to supply whole system and uses when powering, thus makes system can continuous working.As shown in Figure 2, external power source, over-charge protective module and accumulator connect successively, and wherein accumulator is connected with voltage transformation module, and over-charge protective module can be avoided causing battery damage because overcharging.Voltage transformation module is connected with infrared sensor, pressure transducer, Programmable Logic Controller, relay and warning device respectively.External power source is powered to whole system, photovoltaic conversion, through accumulator, voltage transformation module, is the rated voltage of each electrical equipment, element by external electric energy, supplies whole early warning system and uses, enable normal work, avoid burning electrical equipment, element because of overtension.

The present embodiment adopts single-chip microcomputer as Programmable Logic Controller, and as shown in Figure 3,24V DC conversion, by voltage conversion circuit and mu balanced circuit, is the direct current of 5V by the external 24V direct supply of single-chip microcomputer, outputs to the input supply terminal VCC of single-chip microcomputer.J2, J3 are respectively infrared sensor and pressure transducer, J2, J3 are connected with single-chip microcomputer respectively, gathered data are transferred to single-chip microcomputer by infrared sensor and pressure transducer, single-chip microcomputer through procedure identification, when reaching alerting signal, single-chip microcomputer output signal is closed through amplifying circuit pilot relay K1, K2, K3, when relay is connected, loudspeaker sends alerting signal, when not reaching alerting signal, relay power-off, loudspeaker cuts out.

The work that stream of people's density signal detects has come primarily of infrared sensor and pressure transducer, and infrared sensor, pressure transducer are connected with the input end of Programmable Logic Controller respectively.Infrared sensor is arranged on the open place of relatively flat, monitors the size of flow of the people, during as installed on square, selects the place that the stream of people is relatively large, and the preferably symmetrical installation of many group infrared sensors, often organize between infrared sensor and carry out equidistant installation.Pressure transducer is positioned in the induction region of infrared sensor, and pressure transducer is preferably evenly installed in the induction region of infrared sensor.

Infrared sensor mainly comprises transmitting terminal and receiving end two parts, and transmitting terminal sends light signal, receiving end receiving optical signals, and light signal is converted into electric signal, exports to Programmable Logic Controller.Whether Programmable Logic Controller receives light signal by infrared sensor receiving end determines whether personnel's process, when infrared sensor receiving end does not receive light signal, now illustrates there is barrier obstruction.Force value in pressure transducer test infrared sensor induction zone, pressure signal is converted into electric signal, force value compares with setting value by Programmable Logic Controller, if when force value exceeds setting value, Programmable Logic Controller sends alerting signal by Control warning device; If force value does not reach setting value, warning device does not send alerting signal.

In the present embodiment, Programmable Logic Controller is according to the signal of infrared sensor and pressure transducer, the break-make of pilot relay, thus the process controlling warning device is specific as follows: Programmable Logic Controller is classified into different gradient by setting program to people's current density, the present embodiment has laid eight groups of infrared sensors and pressure transducer, when wherein only having less than 2 groups or 2 groups infrared sensors not receive light signal, by identification, Programmable Logic Controller can think that people's current density is relatively little; When there being 3 to 4 group infrared sensors not receive light signal, and when the force value that the pressure transducer in these infrared sensors induction territory district detects exceeds setting value, can think that people's current density is higher; When there being 5 to 6 group infrared sensors not receive light signal, and when the force value that the pressure transducer in these infrared sensor induction regions detects exceeds setting value, can think that the stream of people is crowded; When there being 7 to 8 group infrared sensors not receive light signal, and when the force value that the pressure transducer in these infrared sensor induction regions detects exceeds setting value, can think that the stream of people is extremely crowded.Programmable Logic Controller, by according to different people's current densitys, controls warning device and sends different alerting signals.

As shown in Figure 4, above-mentioned the crowd is dense that the implementation method of trampling early warning system is prevented in region, comprises the following steps:

S1, Initialize installation, each equipment is working properly, enters step S2.

S2, by Programmable Logic Controller setting program, arrange stream of people's density gradient, people's current density can be divided into low, higher, crowded, extremely crowded, then enters step S3.

S3, detect people current density by infrared sensor, pressure transducer, the force value that the light signal detect infrared sensor and pressure transducer detect sends Programmable Logic Controller to, enters step S4.

S4, Programmable Logic Controller process the light signal of input and force value, force value are compared with setting value, enter step S5.

S5, Programmable Logic Controller judge the gradient residing for people's current density according to the comparative result of step S4, when people's current density is low, enter step S9, when people's current density is higher, enter step S6, when people's current density is crowded, enter step S7, when people's current density is extremely crowded, enter step S8.

S6, Programmable Logic Controller judge that people's current density is as time higher, and the administrative office to this region gives the alarm, and informs neighbouring staff, remind staff to carry out Emergency Preparedness.

When S7, Programmable Logic Controller judge that people's current density is crowded, give the alarm to public security bureau, Emergency Preparedness is carried out at public security bureau's emergency processing center, prepares Evacuation at any time.

S8, Programmable Logic Controller judge that people's current density is as time extremely crowded, gives the alarm to government emergency processing enter, public security system emergency center and this district management place, immediate evacuation crowd.

S9, Programmable Logic Controller, by the closedown of Control warning device, return step S3.

Above-described embodiment is one embodiment of the present invention; but embodiments of the present invention do not limit therewith; be engaged in these those skilled in the art do not deviate from the present invention spirit and principle under make any amendment, replacement, improvement, be all included in protection scope of the present invention.

Claims (10)

1. the crowd is dense, and region prevents trampling early warning system, it is characterized in that, comprises controller, stream of people's Density Detection module and warning device; Described controller is connected with stream of people's Density Detection module, warning device respectively, according to stream of people's density gradient in the detection signal of the stream of people's Density Detection module region that judges that the crowd is dense, then controls warning device according to stream of people's density gradient.
2. the crowd is dense region according to claim 1 is anti-tramples early warning system, and it is characterized in that, described stream of people's Density Detection module comprises the infrared sensor and pressure transducer that are connected with described controller input end respectively; The open place of relatively flat in described infrared sensor is arranged on that the crowd is dense region, its transmitting terminal sends light signal, receiving end receiving optical signals, and light signal is converted into electric signal exports to controller; Described pressure transducer is positioned in the induction region of infrared sensor, exports to controller after detecting to the force value in described induction region; The force value of the electric signal that described controller inputs according to infrared sensor and pressure transducer input judges stream of people's density gradient.
3. the crowd is dense region according to claim 2 is anti-tramples early warning system, and it is characterized in that, described infrared sensor is provided with many groups, and pressure transducer is provided with many groups.
4. the crowd is dense region according to claim 3 is anti-tramples early warning system, it is characterized in that, in described many group infrared sensor symmetries are arranged on that the crowd is dense region.
5. the crowd is dense region according to claim 4 is anti-tramples early warning system, it is characterized in that, often organizes between infrared sensor and carry out equidistant installation.
6. according to any one of claim 3-5, the crowd is dense, and region prevents trampling early warning system, and it is characterized in that, described pressure transducer is evenly arranged in the induction region of infrared sensor.
7. the crowd is dense region according to claim 3 is anti-tramples early warning system, and it is characterized in that, the judgement of described controller to stream of people's density gradient is as follows:
When only having less than 2 groups or 2 groups infrared sensors not receive light signal, controller judges that people's current density is relatively little; When there being 3 to 4 group infrared sensors not receive light signal, and when the force value that the pressure transducer in these infrared sensor induction regions detects exceeds setting value, controller judges that people's current density is higher; When there being 5 to 6 group infrared sensors not receive light signal, and when the force value that the pressure transducer in these infrared sensor induction regions detects exceeds setting value, controller judges that the stream of people is crowded; When there being 7 to 8 group infrared sensors not receive light signal, and when the force value that these infrared sensors induction territory district pressure transducer detects exceeds setting value, controller judges that the stream of people is extremely crowded.
8. the crowd is dense region according to claim 1 is anti-tramples early warning system, it is characterized in that, the crowd is dense, and region prevents that trampling early warning system also comprises the supply module and voltage transformation module that are connected, and described voltage transformation module is connected with controller, stream of people's Density Detection module and warning device respectively.
9. the crowd is dense region according to claim 8 is anti-tramples early warning system, and it is characterized in that, the crowd is dense, and region prevents that trampling early warning system also comprises the relay be connected between described controller and warning device.
10. described in claim 7, the crowd is dense, and the implementation method of trampling early warning system is prevented in region, it is characterized in that comprising the following steps:
S1, Initialize installation;
S2, controller arrange stream of people's density gradient, people's current density are divided into low, higher, crowded, extremely crowded;
S3, detect people current density by infrared sensor, pressure transducer, the force value that the light signal detect infrared sensor and pressure transducer detect sends controller to, enters step S4;
S4, controller process the light signal of input and force value, force value are compared with setting value, enter step S5;
S5, controller judge the gradient residing for people's current density according to the comparative result of step S4, when people's current density is low, enter step S9, when people's current density is higher, enter step S6, when people's current density is crowded, enter step S7, when people's current density is extremely crowded, enter step S8;
S6, controller judge that people's current density is as time higher, and the administrative office to this region gives the alarm, and informs neighbouring staff, remind staff to carry out Emergency Preparedness;
When S7, controller judge that people's current density is crowded, give the alarm to public security bureau, Emergency Preparedness is carried out at public security bureau's emergency processing center, prepares Evacuation at any time;
S8, controller judge that people's current density is as time extremely crowded, gives the alarm to government emergency processing enter, public security system emergency center and this district management place, immediate evacuation crowd;
S9, controller control the closedown of warning device, return step S3.
CN201510045181.4A 2015-01-28 2015-01-28 Anti-trampling prewarning system for people crowded region and implementation method for anti-treading prewarning system CN104680712A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105118229A (en) * 2015-07-18 2015-12-02 东北师范大学 Crowd density grade estimation and alarm method
CN105374177A (en) * 2015-11-10 2016-03-02 江苏科技大学 Automatic help system based on pressure sensing and evacuation guiding method
CN105760484A (en) * 2016-02-17 2016-07-13 中国科学院上海高等研究院 Crowd treading pre-warning method and system and server with system
CN106593519A (en) * 2016-11-08 2017-04-26 中国矿业大学 Stampede-preventing method for space-limited pedestrian passage of subway
WO2018195718A1 (en) * 2017-04-24 2018-11-01 深圳市瑞荣创电子科技有限公司 Device for evaluating activity of crowd in building area and evaluation method therefor
CN109190325A (en) * 2018-11-20 2019-01-11 山东师范大学 Crowd evacuation Path Planning Simulation method based on the analysis of pedestrian's crowding

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201477647U (en) * 2009-08-12 2010-05-19 南京通用电器有限公司 Bus-borne high-precision passenger flow counting device
CN201576340U (en) * 2009-12-30 2010-09-08 张建红 Pupil stampede accident prevention stair pedestrian count alarm
CN201703260U (en) * 2010-06-13 2011-01-12 易丽娟 Overload protection device of coach
CN102354374A (en) * 2011-07-15 2012-02-15 重庆交通大学 Sensing carpet, method and method used for monitoring pedestrian flow density in public place
CN102602430A (en) * 2012-04-11 2012-07-25 上海海事大学 Subway carriage space utilization rate indicating device and using method thereof
CN202956858U (en) * 2012-10-31 2013-05-29 东北师范大学 Population density monitor
CN103661486A (en) * 2013-12-19 2014-03-26 华南理工大学 Subway crowding degree indication device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201477647U (en) * 2009-08-12 2010-05-19 南京通用电器有限公司 Bus-borne high-precision passenger flow counting device
CN201576340U (en) * 2009-12-30 2010-09-08 张建红 Pupil stampede accident prevention stair pedestrian count alarm
CN201703260U (en) * 2010-06-13 2011-01-12 易丽娟 Overload protection device of coach
CN102354374A (en) * 2011-07-15 2012-02-15 重庆交通大学 Sensing carpet, method and method used for monitoring pedestrian flow density in public place
CN102602430A (en) * 2012-04-11 2012-07-25 上海海事大学 Subway carriage space utilization rate indicating device and using method thereof
CN202956858U (en) * 2012-10-31 2013-05-29 东北师范大学 Population density monitor
CN103661486A (en) * 2013-12-19 2014-03-26 华南理工大学 Subway crowding degree indication device

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105118229A (en) * 2015-07-18 2015-12-02 东北师范大学 Crowd density grade estimation and alarm method
CN105374177A (en) * 2015-11-10 2016-03-02 江苏科技大学 Automatic help system based on pressure sensing and evacuation guiding method
CN105374177B (en) * 2015-11-10 2018-01-26 江苏科技大学 A kind of automatic help system perceived based on pressure and evacuation bootstrap technique
CN105760484A (en) * 2016-02-17 2016-07-13 中国科学院上海高等研究院 Crowd treading pre-warning method and system and server with system
CN105760484B (en) * 2016-02-17 2019-10-25 中国科学院上海高等研究院 A kind of crowd tramples method for early warning, system and the server with the system
CN106593519A (en) * 2016-11-08 2017-04-26 中国矿业大学 Stampede-preventing method for space-limited pedestrian passage of subway
WO2018086505A1 (en) * 2016-11-08 2018-05-17 中国矿业大学 Stampede preventing method for pedestrian passage in confined space of subway
CN106593519B (en) * 2016-11-08 2018-06-08 中国矿业大学 A kind of subway restricted clearance personnel channel prevents the method for trampling
US10480139B2 (en) 2016-11-08 2019-11-19 China University Of Mining And Technology Stampede preventing method for pedestrian passage in confined space of subway
WO2018195718A1 (en) * 2017-04-24 2018-11-01 深圳市瑞荣创电子科技有限公司 Device for evaluating activity of crowd in building area and evaluation method therefor
CN109190325A (en) * 2018-11-20 2019-01-11 山东师范大学 Crowd evacuation Path Planning Simulation method based on the analysis of pedestrian's crowding
CN109190325B (en) * 2018-11-20 2019-05-28 山东师范大学 Crowd evacuation Path Planning Simulation method based on the analysis of pedestrian's crowding

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