阅读说明：本技术 一种新型智能防踩踏逃生门系统 (Novel intelligence prevents trampling escape door system ) 是由 石坚 叶伟光 何忠英 林言泽 于 2021-07-16 设计创作，主要内容包括：本发明公开了一种新型智能防踩踏逃生门系统,系统包括智能逃生门、摄像头模块、热释红外传感器模块、电机模块、蓝牙模块以及控制核心；智能逃生门设置在室内的出口或普通的逃生门旁,作为额外的逃生出口；摄像头模块,用于拍摄并检测人流的逃生速度；热释红外传感器模块,用于热源定位每个人员的位置,计算每个人员距离不同逃生出口的距离；电机模块,用于控制智能逃生门的开关以及时疏散人群；蓝牙模块,用于各模块之间的通信连接；控制核心,作为中枢大脑,统筹控制各模块的运行。本发明实现对逃生门的智能控制,能够辅助实现更为高效以及全面的逃生和防踩踏智能管理,有利于在商场内等人员密集的地方及时安全疏散每个逃生人员。(The invention discloses a novel intelligent anti-treading escape door system which comprises an intelligent escape door, a camera module, a pyroelectric infrared sensor module, a motor module, a Bluetooth module and a control core, wherein the intelligent escape door is arranged on the intelligent escape door; the intelligent escape door is arranged at an indoor exit or beside a common escape door and is used as an additional escape exit; the camera module is used for shooting and detecting the escape speed of people; the pyroelectric infrared sensor module is used for positioning the position of each person by a heat source and calculating the distance between each person and different escape exits; the motor module is used for controlling the opening and closing of the intelligent escape door so as to evacuate people in time; the Bluetooth module is used for communication connection among the modules; and the control core is used as a central brain and comprehensively controls the operation of each module. The intelligent control system realizes intelligent control on the escape door, can assist in realizing more efficient and comprehensive escape and anti-treading intelligent management, and is beneficial to timely and safely evacuating each escape person in places with dense persons such as shopping malls.)

1. A novel intelligent anti-treading escape door system is characterized by comprising an intelligent escape door, a camera module, a pyroelectric infrared sensor module, a motor module, a Bluetooth module and a control core;

the intelligent escape door is arranged at an indoor exit or beside a common escape door and is used as an additional escape exit;

the camera module is used for shooting and detecting the escape speed of a person and transmitting data to the control core for processing;

the pyroelectric infrared sensor module is used for positioning the position of each person by a heat source and calculating the distance between each person and different escape exits;

the motor module is used for controlling the opening and closing of the intelligent escape door so as to evacuate people in time;

the Bluetooth module is used for communication connection among the modules;

the control core is connected with camera module, heat release infrared sensor module, motor module and bluetooth module respectively, as the maincenter brain, overall control each module's operation.

2. The novel intelligent anti-treading escape door system as claimed in claim 1, wherein the intelligent anti-treading escape door system comprises the following steps:

s1, detecting indoor personnel by the pyroelectric infrared sensor module, determining the position coordinates of each personnel indoors and transmitting data to the control core;

s2, calculating the distance between each person and the escape exit by the control core according to the position coordinates of each person;

s3, detecting the escape speed of the personnel by the camera module, transmitting data to the control core, obtaining the total escape time of each personnel, and predicting the escape exit selected by each escape personnel;

s4, carrying out bubbling sequencing on the predicted escape time of all the evacuees;

s5, calculating the safe escape distance, and judging whether to open the intelligent escape door to evacuate people according to the safe escape distance.

3. The novel intelligent anti-stepping escape door system according to claim 2, wherein in step S1, the position coordinates of each person in the room are determined as follows:

an X-axis is established for the horizontal line, and a Y-axis is established with the adjacent indoor side, so that the position coordinates (X, Y) of each person in the actual distance in the indoor space are obtained.

4. The novel intelligent anti-stepping escape door system according to claim 3, wherein in step S2, the specific calculation formula of the distance from the person to the exit is as follows:

wherein X is the position coordinate of the person on the X axis, Y is the position coordinate of the person on the Y axis, Xn is the X axis coordinate of the escape exit n, and Xn' is the distance from a certain person to the escape exit n.

5. The novel intelligent anti-stepping escape door system according to claim 4, wherein in step S3, the total escape time is calculated by:

the escape time of the nth person for escaping to the escape exit n is as follows:

t_nn＝Xn′/S

wherein S is the escape speed of the personnel and is detected by the camera module;

total escape time of nth person:

t′_n＝{t_n1,t_n2,t_n3,...,t_nn}

wherein, t'_nIs the total escape time of the nth person, t_n1Time for the nth person to escape from escape exit 1, t_n2Time for the nth person to escape from escape exit 2, t_n3The time for the nth person to escape from the escape exit 3; t is t_nnThe time for the nth person to escape from the escape exit n.

6. The novel intelligent anti-stepping escape door system according to claim 5, wherein in step S3, the specific predicted escape exits selected by each evacuee are:

the camera module identifies the escape direction of each escape person, judges which escape exit each escape person intends to escape through, and selects the predicted escape time from the total escape time corresponding to each person as follows:

t₁,t₂,t₃,...,t_n

wherein, t₁∈t′₁，t₂∈t′₂，t₃∈t′₃，t_n∈t′_n。

7. The novel intelligent anti-stepping escape door system according to claim 6, wherein the step S4 is specifically as follows:

predicted escape time t for all persons₁,t₂,t₃,...,t_nAnd (3) carrying out bubbling sequencing, specifically:

all the predicted escape time t₁,t₂,t₃,...,t_nUniformly arranging the two adjacent numbers into a vertical column, sequentially comparing every two adjacent numbers in pairs, placing less time on the lower side of the data vertical column until the least time in the group of the numbers is compared, placing the data on the lowest side of the data vertical column, removing the numbers, and performing bubble sorting on the rest numbers again until the size sequence of all the predicted escape times is finally obtained;

meanwhile, the control core counts the number of the people with the same predicted escape time through data statistics.

8. The novel intelligent anti-treading escape door system according to claim 1, wherein the calculation of the safe escape distance specifically comprises:

considering the safe evacuation of people, assuming that 6 people are evacuated per square, the capacity per meter length is:

assuming that the average shoulder width of a person is Ncm, the safe escape distance is as follows:

s＝(100-N×2.45)÷2.45。

9. the novel intelligent anti-stepping escape door system according to claim 7 or 8, wherein in step S5, the step of judging whether to open the escape door specifically comprises:

suppose that the bubble sort result of step S4 is t₁≤t₂≤t₃≤...≤t_n-1≤t_n；

When the control core counts that the predicted escape time of a persons is t₁I.e. at t₁When a person escapes to an escape exit, the pyroelectric infrared sensor module analyzes the person a as an infrared hot spot, and the distance between adjacent infrared hot spots is the average distance m actually representing the distance between every two persons;

when m is less than s, a trampling accident is likely to occur, the motor module is started, and the corresponding intelligent escape door is opened to accelerate the evacuation of the person a;

when m is larger than or equal to s, no trampling accident occurs, the motor module is not started, and the corresponding intelligent escape door is not opened;

at t over₁After the time, the control core counts and obtains the minimum t in the rest predicted escape time by the total data amount₂And the predicted escape time of b persons is t₂I.e. with b individuals at t₂The time is escaped to an escape exit;

when m is less than s, a trampling accident is likely to occur, the motor module is started, the corresponding intelligent escape door is opened, and the b individuals are evacuated;

when m is larger than or equal to s, no trampling accident occurs, the motor module is not started, and the corresponding intelligent escape door is not opened;

and circularly judging whether the intelligent escape door is opened or not until all people are safely evacuated at different escape speeds.

Technical Field

The invention belongs to the technical field of fire safety, and particularly relates to a novel intelligent anti-treading escape door system.

Background

In a place where people are dense, such as a mall, and in the case of a crisis, people who are panic and misbehaving often choose to rapidly escape from the doorway, but when a large number of people pass through the doorway, a stepping accident is likely to occur, and thus an escape door must be established for evacuating people. However, the escape door in reality is not intelligent enough, and cannot be opened and closed in real time according to the flow of people, so that people can be intelligently evacuated and prevented from being trampled, and therefore, a real-time dynamic evacuation escape door must be created for emergency evacuation in emergency treatment.

Disclosure of Invention

The invention mainly aims to overcome the defects in the prior art, and provides a novel intelligent anti-treading escape door system, which improves the integration level of a control system and realizes the accurate control of an anti-treading escape door.

In order to achieve the purpose, the invention adopts the following technical scheme:

a novel intelligent anti-treading escape door system comprises an intelligent escape door, a camera module, a pyroelectric infrared sensor module, a motor module, a Bluetooth module and a control core;

the intelligent escape door is arranged at an indoor exit or beside a common escape door and is used as an additional escape exit;

the camera module is used for shooting and detecting the escape speed of a person and transmitting data to the control core for processing;

the pyroelectric infrared sensor module is used for positioning the position of each person by a heat source and calculating the distance between each person and different escape exits;

the motor module is used for controlling the opening and closing of the intelligent escape door so as to evacuate people in time;

the Bluetooth module is used for communication connection among the modules;

the control core is connected with camera module, heat release infrared sensor module, motor module and bluetooth module respectively, as the maincenter brain, overall control each module's operation.

Further, intelligence prevents trampling escape door system includes the following step:

s1, detecting indoor personnel by the pyroelectric infrared sensor module, determining the position coordinates of each personnel indoors and transmitting data to the control core;

s2, calculating the distance between each person and the escape exit by the control core according to the position coordinates of each person;

s3, detecting the escape speed of the personnel by the camera module, transmitting data to the control core, obtaining the total escape time of each personnel, and predicting the escape exit selected by each escape personnel;

s4, carrying out bubbling sequencing on the predicted escape time of all the evacuees;

s5, calculating the safe escape distance, and judging whether to open the intelligent escape door to evacuate people according to the safe escape distance.

Further, in step S1, the step of determining the indoor position coordinates of each person specifically includes:

an X-axis is established for the horizontal line, and a Y-axis is established with the adjacent indoor side, so that the position coordinates (X, Y) of each person in the actual distance in the indoor space are obtained.

Further, in step S2, the specific calculation formula of the distance between the person and the exit is as follows:

wherein X is the position coordinate of the person on the X axis, Y is the position coordinate of the person on the Y axis, Xn is the X axis coordinate of the escape exit n, and Xn' is the distance from a certain person to the escape exit n.

Further, in step S3, the total escape time is calculated specifically as follows:

the escape time of the nth person for escaping to the escape exit n is as follows:

t_nn＝Xn′/S

wherein S is the escape speed of the personnel and is detected by the camera module;

total escape time of nth person:

t′_n＝{t_n1,t_n2,t_n3,...,t_nn}

wherein, t'_nIs the total escape time of the nth person, t_n1Time for the nth person to escape from escape exit 1, t_n2Time for the nth person to escape from escape exit 2, t_n3The time for the nth person to escape from the escape exit 3; t is t_nnThe time for the nth person to escape from the escape exit n.

Further, in step S3, it is predicted that the escape exit selected by each evacuee specifically is:

the camera module identifies the escape direction of each escape person, judges which escape exit each escape person intends to escape through, and selects the predicted escape time from the total escape time corresponding to each person as follows:

t₁,t₂,t₃,...,t_n

wherein, t₁∈t′₁，t₂∈t′₂，t₃∈t′₃，t_n∈t′_n。

Further, step S4 is specifically:

predicted escape time t for all persons₁,t₂,t₃,...,t_nAnd (3) carrying out bubbling sequencing, specifically:

all the predicted escape time t₁,t₂,t₃,...,t_nUniformly arranging the two adjacent numbers into a vertical column, sequentially comparing every two adjacent numbers in pairs, placing less time on the lower side of the data vertical column until the least time in the group of the numbers is compared, placing the data on the lowest side of the data vertical column, removing the numbers, and performing bubble sorting on the rest numbers again until the size sequence of all the predicted escape times is finally obtained;

meanwhile, the control core counts the number of the people with the same predicted escape time through data statistics.

Further, the calculation of the safe escape distance specifically comprises:

considering the safe evacuation of people, assuming that 6 people are evacuated per square, the capacity per meter length is:

assuming that the average shoulder width of a person is Ncm, the safe escape distance is as follows:

s＝(100-N×2.45)÷2.45。

further, in step S5, the step of determining whether to open the escape door specifically includes:

suppose that the bubble sort result of step S4 is t₁≤t₂≤t₃≤...≤t_n-1≤t_n；

When the control core counts that the predicted escape time of a persons is t₁I.e. at t₁When a person escapes to an escape exit, the pyroelectric infrared sensor module analyzes the person a as an infrared hot spot, and the distance between adjacent infrared hot spots is the average distance m actually representing the distance between every two persons;

when m is less than s, a trampling accident is likely to occur, the motor module is started, and the corresponding intelligent escape door is opened to accelerate the evacuation of the person a;

when m is larger than or equal to s, no trampling accident occurs, the motor module is not started, and the corresponding intelligent escape door is not opened;

at t over₁After the time, the control core counts and obtains the minimum t in the rest predicted escape time by the total data amount₂And the predicted escape time of b persons is t₂I.e. with b individuals at t₂The time is escaped to an escape exit;

when m is less than s, a trampling accident is likely to occur, the motor module is started, the corresponding intelligent escape door is opened, and the b individuals are evacuated;

when m is larger than or equal to s, no trampling accident occurs, the motor module is not started, and the corresponding intelligent escape door is not opened;

and circularly judging whether the intelligent escape door is opened or not until all people are safely evacuated at different escape speeds.

Compared with the prior art, the invention has the following advantages and beneficial effects:

1. the invention fully utilizes the characteristics of high control core processing speed, rich interfaces and the like, improves the integration level of the control system and simultaneously realizes the accurate control of the anti-treading intelligent escape door system; the control system is designed by adopting a modularization method, and abundant peripheral resources on the control core chip are fully utilized, so that the independence of each module can be ensured, and the mutual relation of all parts can be realized.

2. According to the intelligent anti-treading escape door, the intelligent escape door is opened and closed to accelerate the evacuation of people according to different escape speeds of different people when a crisis occurs, and the intelligent anti-treading escape door has the advantages of practicability and flexibility; the emergency evacuation system can also prevent the occurrence of trampling accidents, and control the real-time escape people at the doorway to be below the fixed escape people threshold value according to the fixed escape people number of the trampling accidents, so that an emergency evacuation mechanism for crisis treatment can be effectively established, and the emergency evacuation system is safe and effective.

3. The system controls the anti-treading escape door according to different escape speeds of different people, and ensures the life safety of different people.

Drawings

FIG. 1 is a block diagram of the system of the present invention;

fig. 2 is a schematic diagram of indoor person positioning according to an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to examples and drawings, but the present invention is not limited thereto.

Examples

As shown in fig. 1, the invention provides a novel intelligent anti-treading escape door system, which comprises an intelligent escape door, a camera module, a pyroelectric infrared sensor module, a motor module, a bluetooth module and a control core, wherein the intelligent escape door is connected with the camera module;

the intelligent escape door is arranged at an indoor exit or beside a common escape door and is used as an additional escape exit;

the camera module is used for shooting and detecting the escape speed of a person and transmitting data to the control core for processing;

the pyroelectric infrared sensor module is used for positioning the position of each person by a heat source and calculating the distance between each person and the escape exit;

the motor module is used for controlling the opening and closing of the intelligent escape door so as to evacuate people in time;

the Bluetooth module is used for communication connection among the modules;

the control core is used as a central brain and comprehensively controls the operation of each module; the control core can adopt various types, such as STM32, 51 single-chip microcomputer and the like.

In this embodiment, the specific process that escape door system control escape door evacuation crowd is prevented trampling by intelligence includes:

s1, detecting indoor personnel by the pyroelectric infrared sensor module, determining the position coordinates of each personnel indoors and transmitting data to the control core;

s2, calculating the distance from each person to the escape exit by the control core according to the position coordinates of each person;

in this embodiment, the following are specifically mentioned:

taking the escape exit 1 as an example, an X axis is established by taking one side of the escape exit 1 as a horizontal line, and a Y axis is established by taking one side of an adjacent market, so that the position coordinates (X, Y) of the person in the actual distance in the market can be obtained, and the horizontal position of the escape door n is set as Xn, and the following formula is adopted:

wherein X is the position coordinate of a person on an X axis, Y is the position coordinate of the person on a Y axis, Xn is the X axis coordinate of the escape door n, and Xn' is the distance from a certain person to the escape exit n;

as shown in fig. 2, which is a plan view of a person in a mall in the embodiment, the pyroelectric infrared sensor module is used to position the person in the mall, so as to obtain the horizontal and vertical coordinates of the position of the person and the horizontal and vertical coordinates of the escape exits, and the different distances between the person and all the different escape exits are obtained through calculation.

S3, detecting the escape speed of the personnel by the camera module and transmitting data to the control core to obtain the escape time of each personnel;

in this embodiment, the following are specifically mentioned:

when the person escapes, the camera module shoots the escape speed of each person in real time to calculate the escape time of the person escaping to all different escape exits and transmits data to the control core, and the control core further obtains the escape time of all the escape persons escaping from different escape exits; simultaneously, the camera module judges through which escape exit each flee personnel's intention and flee, and concrete computational process is:

during escape, the camera module shoots the escape speed of each person in real time, and the escape speed of a person shot by the camera module under an emergency condition is assumed to be S;

the escape time of the person to escape to the escape exit n is as follows:

t_nn＝Xn′/S

wherein, t_nnThe escape time for the nth person to escape from the escape exit n;

the control core obtains the total escape time t 'of all people'_nThe following takes the first and nth individuals as examples:

person 1: t'₁＝{t₁₁,t₁₂,t₁₃,...,t_1n}，t′₁Total escape time for the 1 st person; t is t₁₁The time for the 1 st person to escape from the escape exit 1; t is t₁₂The time for the 1 st person to escape from the escape exit 2; t is t₁₃The time for the 1 st person to escape from the escape exit 3; t is t_1nThe time for the 1 st person to escape from the escape exit n;

the nth person: t'_n＝{t_n1,t_n2,t_n3,...,t_nn}，t′_nTotal escape time for the nth person, t_n1Time for the nth person to escape from escape exit 1, t_n2Time for the nth person to escape from escape exit 2, t_n3Time for the nth person to escape from escape exit 3, t_nnThe time for the nth person to escape from the escape exit n.

However, the on-site escape crowd can select one escape exit to escape in real time when the emergency comes, at the moment, the camera module is started, the escape direction of each escape person is identified, the escape exit through which different individuals intend to escape is judged, and the predicted escape time is selected from the total escape time corresponding to each person, wherein the predicted escape time is respectively as follows:

t₁,t₂,t₃,...,t_n

wherein, t₁∈t′₁，t₂∈t′₂，t₃∈t′₃，t_n∈t′_n。

S4, carrying out bubbling sequencing on the predicted escape time of all the people;

in this embodiment, the following are specifically mentioned:

all the predicted escape time t₁,t₂,t₃,...,t_nUniformly arranging the numbers into a vertical column, sequentially comparing every two adjacent numbers in pairs, placing less time on the lower side of the data vertical column until the least time in the number group is compared, placing the number on the lowest side of the data vertical column, removing the number, and performing bubble sorting on the rest numbers again until all the predicted escape time sequence is finally obtained.

And S5, calculating the safe escape distance, and judging whether to open the escape door according to the safe escape distance.

In this embodiment, the following are specifically mentioned:

calculating the crowd density and the safe escape distance which is not easy to tread; judging whether to open the intelligent escape door according to the safe escape distance;

the precondition of the occurrence of trampling accidents is that the crowd density is enough, more people per square meter have a critical state, and under the density, people can normally walk; above this density, the person will be in a stop-and-go state, at this time, the person is difficult to walk freely, and interaction force is generated between people, so that the state is transited from safe to unsafe.

In this example, it is assumed that the density of the critical points is 6-8 persons on average per meter;

in order to ensure safe evacuation of people to the maximum extent, in the embodiment, 6 evacuated people are set per square meter, and the safe distance between people is maximized;

the containment per 1 meter length can be found to be:

the average human shoulder width is 36.3 cm;

then, the safe escape distance between people and adjacent people can be obtained as follows:

s＝(100-36.3×2.45)/2.45≈4.516cm。

in this embodiment, assume that the bubble ranking result of the predicted escape time of all people is t₁≤t₂≤t₃≤...≤t_n-1≤t_nAnd then:

when a is personal at t₁When the time escapes to an exit, the infrared sensor module is started, a individuals are used as an infrared hot spot to be analyzed, and the distance between the adjacent infrared hot spots is the average distance m actually representing the distance between each individual;

when m is less than 4.516, a trampling accident may occur, the motor module is started, and the corresponding intelligent escape door is opened to accelerate the evacuation of the person a;

when m is larger than or equal to 4.516, no trampling accident occurs, the motor module is not started, and the corresponding intelligent escape door is not opened;

at t over₁After the time, the control core counts and obtains the minimum t in the rest predicted escape time by the total data amount₂And the predicted escape time of b persons is t₂I.e. with b individuals at t₂Time to escape to the exit;

when m is less than 4.516, a trampling accident may occur, the motor module is started, and the corresponding intelligent escape door is opened to accelerate evacuation of the person b;

when m is larger than or equal to 4.516, no trampling accident occurs, the motor module is not started, and the corresponding intelligent escape door is not opened;

whether intelligent emergency exits is opened in circulation judgement, guarantees all people under different escape speed, can both evacuate safely, prevents to trample the emergence of accident.

It should also be noted that in this specification, terms such as "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. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.