CN116432879A - Emergency lighting and evacuation indicating system - Google Patents

Emergency lighting and evacuation indicating system Download PDF

Info

Publication number
CN116432879A
CN116432879A CN202310342948.4A CN202310342948A CN116432879A CN 116432879 A CN116432879 A CN 116432879A CN 202310342948 A CN202310342948 A CN 202310342948A CN 116432879 A CN116432879 A CN 116432879A
Authority
CN
China
Prior art keywords
emergency lighting
emergency
indicating device
evacuation
indicating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202310342948.4A
Other languages
Chinese (zh)
Other versions
CN116432879B (en
Inventor
张娅
牛生才
焦诗乾
苏宁
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong Nuokong Intelligent Technology Co ltd
Original Assignee
Shandong Nuokong Intelligent Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shandong Nuokong Intelligent Technology Co ltd filed Critical Shandong Nuokong Intelligent Technology Co ltd
Priority to CN202310342948.4A priority Critical patent/CN116432879B/en
Publication of CN116432879A publication Critical patent/CN116432879A/en
Application granted granted Critical
Publication of CN116432879B publication Critical patent/CN116432879B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q10/00—Administration; Management
    • G06Q10/04—Forecasting or optimisation specially adapted for administrative or management purposes, e.g. linear programming or "cutting stock problem"
    • G06Q10/047—Optimisation of routes or paths, e.g. travelling salesman problem
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F18/00—Pattern recognition
    • G06F18/20—Analysing
    • G06F18/24—Classification techniques
    • G06F18/241—Classification techniques relating to the classification model, e.g. parametric or non-parametric approaches
    • G06F18/2415—Classification techniques relating to the classification model, e.g. parametric or non-parametric approaches based on parametric or probabilistic models, e.g. based on likelihood ratio or false acceptance rate versus a false rejection rate
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
    • G06Q50/10—Services
    • G06Q50/26—Government or public services
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V20/00—Scenes; Scene-specific elements
    • G06V20/40—Scenes; Scene-specific elements in video content
    • G06V20/41—Higher-level, semantic clustering, classification or understanding of video scenes, e.g. detection, labelling or Markovian modelling of sport events or news items
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/16—Human faces, e.g. facial parts, sketches or expressions
    • G06V40/172—Classification, e.g. identification
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection

Abstract

The invention relates to the technical field of emergency lighting and evacuation, and discloses an emergency lighting and evacuation indicating system, which comprises the following steps: an emergency illumination indicating device is arranged in the internal area of the building according to the disambiguation principle; acquiring a personnel image passing through the area in real time by utilizing a video monitoring function of the emergency lighting indicating device, and carrying out multi-target identification; the emergency lighting indicating device number, the corresponding identification result and the image acquisition time are sent to a background server; frequent pattern mining is carried out on the emergency track data set acquired by the background server in a traversing way; and adjusting the indication direction of the emergency lighting indication device in the corresponding area according to the optimal evacuation path obtained by excavation, and guiding personnel to evacuate rapidly. According to the invention, the self-adaptive charging and illumination adjustment of the emergency illumination indicating device are realized, and the evacuation paths of different people are obtained based on the face images in the accident environment, so that the optimal evacuation paths adopted by most people in the current environment are obtained.

Description

Emergency lighting and evacuation indicating system
Technical Field
The invention relates to the technical field of emergency lighting and evacuation, in particular to an emergency lighting and evacuation indicating system.
Background
The emergency lighting and evacuation indicating system is an important guarantee for improving the living quality of the public under the age background of continuous development of intelligent technology. With the increasing number of modern urban high-rise buildings, the internal passages of the buildings are more and more complex, and the construction of fire evacuation facilities is also beginning to receive more and more attention. The intelligent emergency lighting and evacuation indicating system plays an incomparable role in the aspect of building safety, and the intelligent advantage of the intelligent emergency lighting and evacuation indicating system reduces the threat of fire accidents to the life and property safety of people and provides effective help for smooth evacuation of people. The existing emergency lighting and evacuation indicating system mainly uses a manually designed fixed emergency line, has hysteresis, and cannot realize emergency change of an accident scene. To this problem, this patent proposes an emergency lighting and evacuation indicating system, realizes the dynamic handling of the inside emergency line of complicated building.
Disclosure of Invention
In view of the above, the present invention provides an emergency lighting and evacuation indication system, and aims to 1) design an emergency lighting indication device, which has a lighting function, a video monitoring function, a road indication function and a communication function, wherein the video monitoring function is used for capturing video images at different moments, the road indication function is used for indicating the direction of an evacuation path, the communication function is used for uploading the collected video images to a controller in a building area to which the emergency lighting indication device belongs and receiving the evacuation path sent by the controller, and the controller is used for monitoring the output voltage and the output power of different emergency lighting indication devices in real time, so as to automatically charge and regulate the power of the emergency lighting indication device, and ensure the electric quantity of the emergency lighting indication device and the effective illuminance under an accident environment; 2) Based on the color cast problem of the shot image caused by uneven brightness in the accident environment, carrying out recognition and judgment on the color cast problem of the image based on the color factors, if the color cast problem is recognized, carrying out image enhancement by utilizing histogram equalization operation of the color channels, determining a face area in the accident environment based on color histograms of different areas, and realizing multi-target face recognition based on the spatial direction characteristics of the face area; 3) The method comprises the steps of determining track paths of successful evacuation of different people according to a face recognition matching result, carrying out frequent pattern mining on an acquired emergency track data set, acquiring optimal evacuation paths adopted by most people in a current environment, and adjusting indication directions of emergency lighting indication devices of different floor areas according to the acquired optimal evacuation paths to guide the people to evacuate rapidly.
In order to achieve the above object, the present invention provides an emergency lighting and evacuation indication system, comprising the following system flows:
s1: an emergency lighting indicating device is arranged in an inner area of a building according to a disambiguation principle, the numbers of the emergency lighting indicating devices in the inner area and an outlet area of the building are marked by a background server, the disambiguation principle indicates that the emergency lighting indicating device can indicate all potential channels in the area, ambiguity does not exist, and the emergency lighting indicating device has a video monitoring function;
s2: acquiring a personnel image passing through the area in real time by utilizing a video monitoring function of the emergency illumination indicating device, and carrying out multi-target identification on the acquired personnel image data;
s3: the serial numbers of the emergency lighting indicating devices, the corresponding identification results and the image acquisition time are sent to a background server, and the background server continuously records the serial numbers of the emergency lighting indicating devices, the corresponding identification results and the image acquisition time data and classifies the serial numbers according to the identification results to obtain serial data of each person passing through different areas at different time;
s4: traversing from the sequence data to obtain sequence data with the same emergency lighting indicating device number as that of the exit area, wherein the sequence data is emergency track data of successful evacuation personnel;
S5: frequent pattern mining is carried out on the collected emergency track data set, and an optimal evacuation path adopted by most people in the current environment is obtained;
s6: and adjusting the indication direction of the emergency lighting indication device in the corresponding area according to the obtained optimal evacuation path, and guiding personnel to evacuate rapidly.
As a further improved flow of the invention:
optionally, in the step S1, an emergency lighting indication device is arranged in an internal area of the building according to a disambiguation principle, including:
the method comprises the steps of constructing an emergency lighting indicating device, wherein the emergency lighting indicating device is provided with a lighting function, a video monitoring function, a road indicating function and a communication function, the video monitoring function is used for shooting video images at different moments, the road indicating function is used for indicating the direction of an evacuation path, the communication function is used for uploading the collected video images to a controller in a building area to which the emergency lighting indicating device belongs and receiving the evacuation path sent by the controller, the controller in the building area is used for supplying power to the emergency lighting indicating device in the area, sending the received video images to a background server, receiving the evacuation path sent by the background server and sending the evacuation path to the emergency lighting indicating device;
An emergency lighting indicating device is arranged in an internal area of a building according to a disambiguation principle, the disambiguation principle indicates that the emergency lighting indicating device can indicate all potential channels in the area, ambiguity does not exist, and the deployment flow of the emergency lighting indicating device is as follows:
s11: a controller is deployed on each floor of a building area, and the controller is used for supplying power to all emergency illumination indicating devices in the floor, receiving monitoring video pictures and sending evacuation paths;
s12: deploying an emergency lighting indicating device at a stair opening of the building area, wherein the emergency lighting indicating device at the stair opening is controlled by a controller of the same floor; deploying the emergency lighting indicating device at the intersection and the exit where the emergency lighting indicating device is not deployed;
s13: using an emergency lighting indicating device at a stair opening as a starting point, deploying the emergency lighting indicating device at intervals of L meters along the direction perpendicular to the stair, and after deploying the emergency lighting indicating device along the direction perpendicular to the stair, respectively deploying the emergency lighting indicating device at intervals of L meters along the direction parallel to the stair for the deployed emergency lighting indicating device, wherein L meets the following formula:
Figure SMS_1
；
Wherein:
s represents the floor area and,
Figure SMS_2
indicating the maximum number of emergency lighting indicating devices that the controller can control,/->
Figure SMS_3
Representing an emergency lighting indication device deployed at an intersection within a floor;
in the embodiment of the invention, the emergency lighting indicating device deployed at the stair entrance can indicate that the evacuation path is in the direction of the floor or above or below the stair, the emergency lighting indicating device deployed at the intersection can indicate that the evacuation path is in the direction of the floor, and other emergency lighting indicating devices can point to the emergency lighting indicating device at the stair entrance or the intersection or the exit based on the evacuation path, and the indication mode is an arrow;
s14: the controller detects the output voltage of the controlled emergency lighting indicating device in real time, and if the detected output voltage reaches the preset minimum output voltage of the emergency lighting indicating device
Figure SMS_4
When the emergency lighting indicating device is in use, the emergency lighting indicating device is automatically charged for a period of time equal to +.>
Figure SMS_5
：
Figure SMS_6
；
Wherein:
Figure SMS_7
indicating the rated stored energy value of the emergency lighting indicator, < >>
Figure SMS_8
Indicating the maximum output voltage preset by the emergency lighting indicating device, < >>
Figure SMS_9
Representing the charging power of the controller;
s15: in daily conditions, the controller controls the output power of the emergency lighting indicating device to be
Figure SMS_10
At this time, the illumination of the emergency lighting indicating device is +.>
Figure SMS_11
Wherein R represents the on-resistance value of the emergency lighting indicating device, and the controller adjusts the output power of the emergency lighting indicating device to +.>
Figure SMS_12
，/>
Figure SMS_13
And (5) increasing the illuminance of the emergency lighting indicating device and performing evacuation indication.
Optionally, the step S1 of marking, at the background server, the emergency lighting indication device number of the building interior and the exit area includes:
marking the numbers of the emergency lighting indicating devices in the building and in the exit area at the background server, wherein the numbers of the emergency lighting indicating devices are as follows:
numbering the emergency lighting indicating devices by adopting a two-section coding mode, wherein the numbering result of any ith emergency lighting indicating device is that
Figure SMS_14
，/>
Figure SMS_15
Representing the building floor number of the ith emergency lighting indicating device,
Figure SMS_16
a serial number indicating that the ith emergency lighting indicating device is on the corresponding floor;
and marks the number of the emergency lighting indicating device at the outlet
Figure SMS_17
Wherein->
Figure SMS_18
Indicating the floor at the j-th exit, < > where>
Figure SMS_19
Indicating floor->
Figure SMS_20
A serial number of the emergency lighting indicating device at the middle exit;
the serial number is calculated by taking an emergency lighting indicating device at the main building entrance of the floor as an initial serial number 0 and numbering the rest emergency lighting indicating devices in a clockwise sequence.
Optionally, in the step S2, a person image passing through the area is acquired in real time by using a video monitoring function of the emergency lighting indication device, and the acquired person image data is subjected to multi-target identification, including:
when emergency evacuation is required in a building, the controllers of different floors control and regulate the output power of all emergency illumination indicating devices in the building, so as to regulate the illumination of the emergency illumination indicating devices, and enable the video monitoring function of the emergency illumination indicating devices, acquire personnel images passing through the area in real time by utilizing the video monitoring function of the emergency illumination indicating devices, upload the acquired personnel images to the controllers, and carry out multi-target recognition on the acquired personnel image data, wherein the multi-target recognition results represent the face images acquired by different emergency illumination indicating devices at different moments;
the process of the background server for carrying out multi-target identification on the received personnel image data is as follows:
s21: the background server receives the personnel image, preprocesses each pixel in the personnel image, converts the pixel of the RGB color channel into a color mode of Lab, and then the value of any kth pixel in the image in the L brightness channel is
Figure SMS_21
The value in the a color channel is +.>
Figure SMS_22
The value in the b color channel is +.>
Figure SMS_23
；
S22: calculating the color factor of the personnel image, if the absolute value of the color factor exceeds the threshold value
Figure SMS_24
If the color cast problem caused by unbalanced brightness exists in the personnel image, respectively carrying out histogram equalization processing on an a-color channel and a b-color channel of the personnel image to obtain the personnel image with enhanced brightness, wherein the calculation formula of the color factors is as follows:
Figure SMS_25
；
wherein:
d represents a color factor, and K represents the total number of pixels in the person image;
s23: setting a search box with a fixed size, performing traversal search on the person image with enhanced brightness by using the search box, calculating RGB color histograms of local areas of each person image obtained by traversal search, marking the local areas as face areas if the RGB color histograms of the traversed local areas accord with the RGB color histogram range of the preset face image, and performing graying treatment on the face areas;
s24: extracting space feature vector of face region
Figure SMS_26
：
Figure SMS_27
；
Figure SMS_28
；
Figure SMS_29
；
Wherein:
Figure SMS_30
representing the spatial feature value of the H-th pixel in the face region, H representing the total number of pixels in the face region,
Figure SMS_31
a spatial feature vector representing a face region;
Figure SMS_32
Representing +.about.h pixel in face region as center>
Figure SMS_33
Pixel matrix of size +.>
Figure SMS_34
A convolution operation is represented and is performed,
Figure SMS_35
characteristic values representing in horizontal space, +.>
Figure SMS_36
Representing the eigenvalues in vertical space;
s25: and taking the spatial characteristics of all face areas in the personnel image as a multi-target recognition result.
Optionally, in the step S3, the serial number of the emergency lighting indicating device, the corresponding identification result and the image acquisition time are sent to a background server, and the background server continuously records the serial number of the emergency lighting indicating device, the corresponding identification result and the image acquisition time data and classifies the serial number, the corresponding identification result and the image acquisition time data according to the identification result, including:
the controller sends the serial number of the emergency lighting indicating device, the corresponding identification result and the image acquisition time to the background server, the background server continuously records the serial number of the emergency lighting indicating device, the corresponding identification result and the image acquisition time data and classifies the serial number, the corresponding identification result and the image acquisition time data according to the identification result, and the classification flow of the data recorded by the background server is as follows:
s31: the background server sorts the identification results and the corresponding emergency lighting indicating device numbers according to the image acquisition time sequence;
s32: sequentially calculating cosine similarity of identification results of different emergency illumination indicating devices at different image acquisition moments, and for the moments
Figure SMS_37
Emergency lighting indicator +.>
Figure SMS_38
Is->
Figure SMS_39
Emergency lighting indicating device
Figure SMS_40
The acquired identification results of the personnel images show that a person is in a moment +.>
Figure SMS_41
During the period, by the position->
Figure SMS_42
Arrival position
Figure SMS_43
；
S33: and repeating the step S32 to obtain sequence data of time sequence evacuation paths of different people, wherein the time sequence evacuation paths represent path sequences of positions of the people at different moments.
Optionally, in the step S4, traversing from the sequence data to obtain sequence data with the same emergency lighting indicating device number as the emergency lighting indicating device number of the exit area, where the sequence data includes:
traversing from the sequence data to obtain sequence data with the same emergency lighting indicating device number as that of the exit area, and forming an emergency track data set from the sequence data obtained by traversing, wherein the emergency track data set comprises all sequence data successfully reaching the exit area; in the embodiment of the invention, the emergency track data is obtained by traversing the emergency illumination indicating device of the exit area forwards.
Optionally, in the step S5, frequent pattern mining is performed on the collected emergency track data set, including:
The background server performs frequent pattern mining on the acquired emergency track data set to obtain a current optimal evacuation path, wherein the frequent pattern mining process comprises the following steps of:
s51: classifying the emergency track data sets to obtain emergency track data sets of each floor;
s52: for an emergency track data set of any floor, the numbers of the emergent illumination indicating devices which appear are constructed into 1-frequent sets, and the frequency of each emergent illumination indicating device is calculated, wherein the calculation formula of the frequency of occurrence is as follows: dividing the number of tracks with the frequent set in the emergent track data set by the total number of tracks in the emergent track data set;
s53: deleting the emergency lighting indicating device numbers with the occurrence frequency smaller than 0.1 from the 1-frequent set, and deleting the emergency track data with the corresponding deleted numbers from the emergency track data set;
s54: combining the serial numbers of the emergency lighting indicating devices in the (w-1) -frequent set to obtain a w-frequent set, wherein the serial numbers of the emergency lighting indicating devices in the w-frequent set are combined into sequences with the length of w serial numbers, the initial value of w is 2, and the occurrence frequency of each sequence is calculated; in the embodiment of the invention, the farther from the exit area in the numbering sequence, the earlier the emergency lighting indicating device numbering is;
S55: deleting the emergency lighting indicating device number sequence with the frequency smaller than 0.1 from the w-frequent set, deleting the emergency track data with the corresponding deleted number sequence from the emergency track data set, and returning to the step S54, wherein w=w+1;
s56: repeating the steps until the final arbitrary W-frequent set is an empty set, wherein the W-frequent set is an empty set, which means that (W-1) -frequent set only has one number sequence, and taking the number sequence in (W-1) -frequent set as the current optimal evacuation path of any floor;
in the embodiment of the invention, the background server performs frequent pattern mining on the emergency track data set within the T time range every T time, updates the optimal evacuation path in real time, and if floors which are not mined to the optimal evacuation path exist, the previous optimal evacuation path is used.
Optionally, in the step S6, the indicating direction of the emergency lighting indicating device in the corresponding area is adjusted according to the obtained optimal evacuation path in the current environment, and the guiding of the rapid evacuation of the personnel includes:
the background server sends the current optimal evacuation paths of different floors to controllers of corresponding floors, and the controllers adjust the indication direction of the emergency lighting indication device of the floor according to the acquired optimal evacuation paths in the current environment to guide people to evacuate rapidly.
In order to solve the above problems, the present invention provides an emergency lighting and evacuation indication system, the system structure includes:
the emergency lighting indicating device is provided with a lighting function, a video monitoring function, a road indicating function and a communication function, wherein the video monitoring function is used for shooting and obtaining video images at different moments, the road indicating function is used for indicating the direction of an evacuation path, the communication function is used for uploading the collected video images to a controller in a building area where the emergency lighting indicating device belongs and receiving the evacuation path sent by the controller;
the controller is used for supplying power to the emergency lighting indicating device in the control area, sending the received video image to the background server, receiving the evacuation path sent by the background server and sending the evacuation path to the emergency lighting indicating device;
the background server is used for carrying out frequent pattern mining on the collected emergency track data set and obtaining the optimal evacuation path adopted by most people in the current environment.
In order to solve the above-mentioned problems, the present invention also provides an electronic apparatus including:
a memory storing at least one instruction; and a processor executing instructions stored in the memory to implement the emergency lighting and evacuation indication system described above.
In order to solve the above-mentioned problems, the present invention further provides a computer readable storage medium having stored therein at least one instruction that is executed by a processor in an electronic device to implement the emergency lighting and evacuation indication system described above.
Compared with the prior art, the invention provides an emergency lighting and evacuation indicating system, which has the following advantages:
firstly, the scheme provides a deployment method of an emergency lighting indicating device in a building, wherein the emergency lighting indicating device is arranged in an internal area of the building according to a disambiguation principle, the disambiguation principle indicates that the emergency lighting indicating device can indicate all potential channels in the area, ambiguity does not exist, and the deployment flow of the emergency lighting indicating device is as follows:
a controller is deployed on each floor of a building area, and the controller is used for supplying power to all emergency illumination indicating devices in the floor, receiving monitoring video pictures and sending evacuation paths; deploying an emergency lighting indicating device at a stair opening of the building area, wherein the emergency lighting indicating device at the stair opening is controlled by a controller of the same floor; deploying the emergency lighting indicating device at the intersection and the exit where the emergency lighting indicating device is not deployed; using an emergency lighting indicating device at a stair opening as a starting point, deploying the emergency lighting indicating device at intervals of L meters along the direction perpendicular to the stair, and after deploying the emergency lighting indicating device along the direction perpendicular to the stair, respectively deploying the emergency lighting indicating device at intervals of L meters along the direction parallel to the stair for the deployed emergency lighting indicating device, wherein L meets the following formula:
Figure SMS_44
；
Wherein:
s represents the floor area and,
Figure SMS_45
indicating the maximum number of emergency lighting indicating devices that the controller can control,/->
Figure SMS_46
Representing an emergency lighting indication device deployed at an intersection within a floor;
in the embodiment of the invention, the emergency lighting indicating device deployed at the stair entrance can indicate that the evacuation path is in the direction of the floor or above or below the stair, the emergency lighting indicating device deployed at the intersection can indicate that the evacuation path is in the direction of the floor, and other emergency lighting indicating devices can point to the emergency lighting indicating device at the stair entrance or the intersection or the exit based on the evacuation path, and the indication mode is an arrow; the controller detects the output voltage of the controlled emergency lighting indicating device in real time, and if the detected output voltage reaches the preset minimum output voltage of the emergency lighting indicating device
Figure SMS_47
When the emergency lighting indicating device is in use, the emergency lighting indicating device is automatically charged for a period of time equal to +.>
Figure SMS_48
：
Figure SMS_49
；
Wherein:
Figure SMS_50
indicating the rated stored energy value of the emergency lighting indicator, < >>
Figure SMS_51
Indicating the maximum output voltage preset by the emergency lighting indicating device, < >>
Figure SMS_52
Representing the charging power of the controller;
in daily conditions, the controller controls the output power of the emergency lighting indicating device to be
Figure SMS_53
At this time, the illumination of the emergency lighting indicating device is +.>
Figure SMS_54
Wherein R represents the on-resistance value of the emergency lighting indicating device, and the controller adjusts the output power of the emergency lighting indicating device to +.>
Figure SMS_55
，/>
Figure SMS_56
And (5) increasing the illuminance of the emergency lighting indicating device and performing evacuation indication.
According to the scheme, the emergency lighting indicating device is designed, the emergency lighting indicating device is provided with a lighting function, a video monitoring function, a road indicating function and a communication function, wherein the video monitoring function is used for shooting video images at different moments, the road indicating function is used for indicating the direction of an evacuation path, the communication function is used for uploading the collected video images to a controller in a building area where the emergency lighting indicating device belongs and receiving the evacuation path sent by the controller, the controller is used for monitoring output voltage and output power of different emergency lighting indicating devices in real time, charging and power regulation are automatically carried out on the emergency lighting indicating device, and electric quantity of the emergency lighting indicating device and effective illumination under an accident environment are guaranteed.
Therefore, the scheme provides a rapid acquisition method of an optimal evacuation path, sequence data with the same emergency lighting indicating device number as that of an exit area is obtained through traversing from the sequence data, and the sequence data obtained through traversing form an emergency track data set, wherein the emergency track data set comprises all sequence data successfully reaching the exit area. The background server performs frequent pattern mining on the acquired emergency track data set to obtain a current optimal evacuation path, wherein the frequent pattern mining process comprises the following steps of: classifying the emergency track data sets to obtain emergency track data sets of each floor; for an emergency track data set of any floor, the numbers of the emergent illumination indicating devices which appear are constructed into 1-frequent sets, and the frequency of each emergent illumination indicating device is calculated, wherein the calculation formula of the frequency of occurrence is as follows: dividing the number of tracks with the frequent set in the emergent track data set by the total number of tracks in the emergent track data set; deleting the emergency lighting indicating device numbers with the occurrence frequency smaller than 0.1 from the 1-frequent set, and deleting the emergency track data with the corresponding deleted numbers from the emergency track data set; combining the serial numbers of the emergency lighting indicating devices in the (w-1) -frequent set to obtain a w-frequent set, wherein the serial numbers of the emergency lighting indicating devices in the w-frequent set are combined into sequences with the length of w serial numbers, the initial value of w is 2, and the occurrence frequency of each sequence is calculated; in the embodiment of the invention, the farther from the exit area in the numbering sequence, the earlier the emergency lighting indicating device numbering is; deleting the emergency lighting indicating device number sequence with the frequency smaller than 0.1 from the w-frequent set, deleting the emergency track data with the corresponding deleted number sequence from the emergency track data set, and returning to the step S54, wherein w=w+1; repeating the steps until the final arbitrary W-frequent set is an empty set, wherein the W-frequent set is an empty set, which means that (W-1) -frequent set only has one number sequence, and taking the number sequence in (W-1) -frequent set as the current optimal evacuation path of any floor; the background server sends the current optimal evacuation paths of different floors to controllers of corresponding floors, and the controllers adjust the indication direction of the emergency lighting indication device of the floor according to the acquired optimal evacuation paths in the current environment to guide people to evacuate rapidly. According to the scheme, the color cast problem of the shot image is caused by uneven brightness in the accident environment, the color cast problem of the image is identified and judged based on the color factors, if the color cast problem is identified, the image is enhanced by utilizing histogram equalization operation of the color channels, the face area in the accident environment is determined based on the color histograms of different areas, and the multi-target face recognition is realized based on the spatial direction characteristics of the face area; and determining the successful evacuation track paths of different people according to the face recognition matching result, and carrying out frequent pattern mining on the collected emergency track data set to quickly acquire the optimal evacuation paths adopted by most people in the current environment, and adjusting the indication directions of emergency lighting indication devices in different floor areas according to the acquired optimal evacuation paths so as to guide the people to evacuate quickly.
Drawings
FIG. 1 is a schematic flow chart of an emergency lighting and evacuation indication system according to an embodiment of the present invention;
FIG. 2 is a functional block diagram of an emergency lighting and evacuation indication system according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an electronic device implementing an emergency lighting and evacuation indication system according to an embodiment of the present invention.
In the figure: 100 emergency lighting and evacuation indication systems, 101 emergency lighting indication devices, 102 controllers, 103 background servers, 1 electronic equipment, 10 processors, 11 memories, 12 programs and 13 communication interfaces.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The embodiment of the application provides an emergency lighting and evacuation indicating system. The execution subject of the emergency lighting and evacuation indication system includes, but is not limited to, at least one of a server, a terminal, etc. capable of being configured to execute the method provided by the embodiments of the present application. In other words, the emergency lighting and evacuation indication system may be implemented by software or hardware installed on a terminal device or a server device, the software may be a blockchain platform. The service end includes but is not limited to: a single server, a server cluster, a cloud server or a cloud server cluster, and the like.
Example 1:
s1: and arranging an emergency lighting indicating device in the interior area of the building according to a disambiguation principle, marking the numbers of the emergency lighting indicating devices in the interior and the exit area of the building by a background server, wherein the emergency lighting indicating device has a video monitoring function.
In the step S1, an emergency lighting indicating device is arranged in an internal area of a building according to a disambiguation principle, and the emergency lighting indicating device comprises:
the method comprises the steps of constructing an emergency lighting indicating device, wherein the emergency lighting indicating device is provided with a lighting function, a video monitoring function, a road indicating function and a communication function, the video monitoring function is used for shooting video images at different moments, the road indicating function is used for indicating the direction of an evacuation path, the communication function is used for uploading the collected video images to a controller in a building area to which the emergency lighting indicating device belongs and receiving the evacuation path sent by the controller, the controller in the building area is used for supplying power to the emergency lighting indicating device in the area, sending the received video images to a background server, receiving the evacuation path sent by the background server and sending the evacuation path to the emergency lighting indicating device;
An emergency lighting indicating device is arranged in an internal area of a building according to a disambiguation principle, the disambiguation principle indicates that the emergency lighting indicating device can indicate all potential channels in the area, ambiguity does not exist, and the deployment flow of the emergency lighting indicating device is as follows:
s11: a controller is deployed on each floor of a building area, and the controller is used for supplying power to all emergency illumination indicating devices in the floor, receiving monitoring video pictures and sending evacuation paths;
s12: deploying an emergency lighting indicating device at a stair opening of the building area, wherein the emergency lighting indicating device at the stair opening is controlled by a controller of the same floor; deploying the emergency lighting indicating device at the intersection and the exit where the emergency lighting indicating device is not deployed;
s13: using an emergency lighting indicating device at a stair opening as a starting point, deploying the emergency lighting indicating device at intervals of L meters along the direction perpendicular to the stair, and after deploying the emergency lighting indicating device along the direction perpendicular to the stair, respectively deploying the emergency lighting indicating device at intervals of L meters along the direction parallel to the stair for the deployed emergency lighting indicating device, wherein L meets the following formula:
Figure SMS_57
；
Wherein:
s represents the floor area and,
Figure SMS_58
indicating the maximum number of emergency lighting indicating devices that the controller can control,/->
Figure SMS_59
Representing an emergency lighting indication device deployed at an intersection within a floor;
in the embodiment of the invention, the emergency lighting indicating device deployed at the stair entrance can indicate that the evacuation path is in the direction of the floor or above or below the stair, the emergency lighting indicating device deployed at the intersection can indicate that the evacuation path is in the direction of the floor, and other emergency lighting indicating devices can point to the emergency lighting indicating device at the stair entrance or the intersection or the exit based on the evacuation path, and the indication mode is an arrow;
s14: the controller detects the output voltage of the controlled emergency lighting indicating device in real time, and if the detected output voltage reaches the preset minimum output voltage of the emergency lighting indicating device
Figure SMS_60
When the emergency lighting indicating device is in use, the emergency lighting indicating device is automatically charged for a period of time equal to +.>
Figure SMS_61
：
Figure SMS_62
；
Wherein:
Figure SMS_63
indicating the rated stored energy value of the emergency lighting indicator, < >>
Figure SMS_64
Indicating the maximum output voltage preset by the emergency lighting indicating device, < >>
Figure SMS_65
Representing the charging power of the controller;
s15: in daily conditions, the controller controls the output power of the emergency lighting indicating device to be
Figure SMS_66
At this time, the illumination of the emergency lighting indicating device is +.>
Figure SMS_67
Wherein R represents the on-resistance value of the emergency lighting indicating device, and the controller adjusts the output power of the emergency lighting indicating device to +.>
Figure SMS_68
，/>
Figure SMS_69
And (5) increasing the illuminance of the emergency lighting indicating device and performing evacuation indication.
In the step S1, the background server marks the numbers of the emergency lighting indicating devices in the building and the exit area, and the emergency lighting indicating devices comprise:
numbering the emergency lighting indicating devices by adopting a two-section coding mode, wherein the numbering of any ith emergency lighting indicating device is combined with the numbering of any ith emergency lighting indicating deviceThe fruit is
Figure SMS_70
，/>
Figure SMS_71
Representing the building floor number of the ith emergency lighting indicating device,
Figure SMS_72
a serial number indicating that the ith emergency lighting indicating device is on the corresponding floor;
and marks the number of the emergency lighting indicating device at the outlet
Figure SMS_73
Wherein->
Figure SMS_74
Indicating the floor at the j-th exit, < > where>
Figure SMS_75
Indicating floor->
Figure SMS_76
A serial number of the emergency lighting indicating device at the middle exit;
the serial number is calculated by taking an emergency lighting indicating device at the main building entrance of the floor as an initial serial number 0 and numbering the rest emergency lighting indicating devices in a clockwise sequence.
S2: and acquiring the personnel image passing through the area in real time by utilizing the video monitoring function of the emergency illumination indicating device, and carrying out multi-target identification on the acquired personnel image data.
In the step S2, a person image passing through the area is acquired in real time by using a video monitoring function of the emergency lighting indicating device, and the acquired person image data is subjected to multi-target identification, including:
when emergency evacuation is required in a building, the controllers of different floors control and regulate the output power of all emergency illumination indicating devices in the building, so as to regulate the illumination of the emergency illumination indicating devices, and enable the video monitoring function of the emergency illumination indicating devices, acquire personnel images passing through the area in real time by utilizing the video monitoring function of the emergency illumination indicating devices, upload the acquired personnel images to the controllers, and carry out multi-target recognition on the acquired personnel image data, wherein the multi-target recognition results represent the face images acquired by different emergency illumination indicating devices at different moments;
the process of the background server for carrying out multi-target identification on the received personnel image data is as follows:
s21: the background server receives the personnel image, preprocesses each pixel in the personnel image, converts the pixel of the RGB color channel into a color mode of Lab, and then the value of any kth pixel in the image in the L brightness channel is
Figure SMS_77
The value in the a color channel is +.>
Figure SMS_78
The value in the b color channel is +.>
Figure SMS_79
；
S22: calculating the color factor of the personnel image, if the absolute value of the color factor exceeds the threshold value
Figure SMS_80
If the color cast problem caused by unbalanced brightness exists in the personnel image, respectively carrying out histogram equalization processing on an a-color channel and a b-color channel of the personnel image to obtain the personnel image with enhanced brightness, wherein the calculation formula of the color factors is as follows:
Figure SMS_81
；
wherein:
d represents a color factor, and K represents the total number of pixels in the person image;
s23: setting a search box with a fixed size, performing traversal search on the person image with enhanced brightness by using the search box, calculating RGB color histograms of local areas of each person image obtained by traversal search, marking the local areas as face areas if the RGB color histograms of the traversed local areas accord with the RGB color histogram range of the preset face image, and performing graying treatment on the face areas;
s24: extracting space feature vector of face region
Figure SMS_82
：
Figure SMS_83
；
Figure SMS_84
；
Figure SMS_85
；
Wherein:
Figure SMS_86
representing the spatial feature value of the H-th pixel in the face region, H representing the total number of pixels in the face region,
Figure SMS_87
a spatial feature vector representing a face region;
Figure SMS_88
Representing +.about.h pixel in face region as center>
Figure SMS_89
Pixel matrix of size +.>
Figure SMS_90
A convolution operation is represented and is performed,
Figure SMS_91
characteristic values representing in horizontal space, +.>
Figure SMS_92
Representing the eigenvalues in vertical space;
s25: and taking the spatial characteristics of all face areas in the personnel image as a multi-target recognition result.
S3: and sending the serial numbers of the emergency lighting indicating devices, the corresponding identification results and the image acquisition time to a background server, and continuously recording the serial numbers of the emergency lighting indicating devices, the corresponding identification results and the image acquisition time data by the background server, and classifying according to the identification results to obtain the sequence data of each person passing through different areas at different time.
The step S3 is to send the emergency lighting indicating device number, the corresponding identification result and the image acquisition time to a background server, the background server continuously records the emergency lighting indicating device number, the corresponding identification result and the image acquisition time data and classifies the emergency lighting indicating device number, the corresponding identification result and the image acquisition time data according to the identification result, and the step S comprises the following steps:
the controller sends the serial number of the emergency lighting indicating device, the corresponding identification result and the image acquisition time to the background server, the background server continuously records the serial number of the emergency lighting indicating device, the corresponding identification result and the image acquisition time data and classifies the serial number, the corresponding identification result and the image acquisition time data according to the identification result, and the classification flow of the data recorded by the background server is as follows:
S31: the background server sorts the identification results and the corresponding emergency lighting indicating device numbers according to the image acquisition time sequence;
s32: sequentially calculating cosine similarity of identification results of different emergency illumination indicating devices at different image acquisition moments, and for the moments
Figure SMS_93
Emergency lighting indicator +.>
Figure SMS_94
Is->
Figure SMS_95
Emergency lighting indicating device
Figure SMS_96
The acquired identification results of the personnel images show that a person is in a moment +.>
Figure SMS_97
During the period, by the position->
Figure SMS_98
Arrival position
Figure SMS_99
；
S33: and repeating the step S32 to obtain sequence data of time sequence evacuation paths of different people, wherein the time sequence evacuation paths represent path sequences of positions of the people at different moments.
S4: traversing from the sequence data to obtain the sequence data with the same emergency lighting indicating device number as the emergency lighting indicating device number of the exit area, wherein the sequence data is emergency track data of successful evacuation personnel.
And step S4, traversing from the sequence data to obtain the sequence data with the same emergency lighting indicating device number as the emergency lighting indicating device number of the exit area, wherein the step S comprises the following steps:
traversing from the sequence data to obtain sequence data with the same emergency lighting indicating device number as that of the exit area, and forming an emergency track data set from the sequence data obtained by traversing, wherein the emergency track data set comprises all sequence data successfully reaching the exit area; in the embodiment of the invention, the emergency track data is obtained by traversing the emergency illumination indicating device of the exit area forwards.
S5: and (3) carrying out frequent pattern mining on the acquired emergency track data set to acquire an optimal evacuation path adopted by most people in the current environment.
And in the step S5, frequent pattern mining is carried out on the collected emergency track data set, and the method comprises the following steps:
the background server performs frequent pattern mining on the acquired emergency track data set to obtain a current optimal evacuation path, wherein the frequent pattern mining process comprises the following steps of:
s51: classifying the emergency track data sets to obtain emergency track data sets of each floor;
s52: for an emergency track data set of any floor, the numbers of the emergent illumination indicating devices which appear are constructed into 1-frequent sets, and the frequency of each emergent illumination indicating device is calculated, wherein the calculation formula of the frequency of occurrence is as follows: dividing the number of tracks with the frequent set in the emergent track data set by the total number of tracks in the emergent track data set;
s53: deleting the emergency lighting indicating device numbers with the occurrence frequency smaller than 0.1 from the 1-frequent set, and deleting the emergency track data with the corresponding deleted numbers from the emergency track data set;
s54: combining the serial numbers of the emergency lighting indicating devices in the (w-1) -frequent set to obtain a w-frequent set, wherein the serial numbers of the emergency lighting indicating devices in the w-frequent set are combined into sequences with the length of w serial numbers, the initial value of w is 2, and the occurrence frequency of each sequence is calculated; in the embodiment of the invention, the farther from the exit area in the numbering sequence, the earlier the emergency lighting indicating device numbering is;
S55: deleting the emergency lighting indicating device number sequence with the frequency smaller than 0.1 from the w-frequent set, deleting the emergency track data with the corresponding deleted number sequence from the emergency track data set, and returning to the step S54, wherein w=w+1;
s56: repeating the steps until the final arbitrary W-frequent set is an empty set, wherein the W-frequent set is an empty set, which means that (W-1) -frequent set only has one number sequence, and taking the number sequence in (W-1) -frequent set as the current optimal evacuation path of any floor;
in the embodiment of the invention, the background server performs frequent pattern mining on the emergency track data set within the T time range every T time, updates the optimal evacuation path in real time, and if floors which are not mined to the optimal evacuation path exist, the previous optimal evacuation path is used.
S6: and adjusting the indication direction of the emergency lighting indication device in the corresponding area according to the obtained optimal evacuation path, and guiding personnel to evacuate rapidly.
In the step S6, according to the obtained optimal evacuation path in the current environment, the indication direction of the emergency lighting indication device in the corresponding area is adjusted, and the guiding of the rapid evacuation of the personnel includes:
the background server sends the current optimal evacuation paths of different floors to controllers of corresponding floors, and the controllers adjust the indication direction of the emergency lighting indication device of the floor according to the acquired optimal evacuation paths in the current environment to guide people to evacuate rapidly.
Example 2:
fig. 2 is a functional block diagram of an emergency lighting and evacuation indication system according to an embodiment of the present invention, which may implement the emergency lighting and evacuation indication system according to embodiment 1.
The emergency lighting and evacuation indication system 100 of the present invention may be installed in an electronic device. Depending on the functions implemented, the emergency lighting and evacuation indication system may include an emergency lighting indication device 101, a controller 102, and a backend server 103. The module of the invention, which may also be referred to as a unit, refers to a series of computer program segments, which are stored in the memory of the electronic device, capable of being executed by the processor of the electronic device and of performing a fixed function.
The emergency lighting indicating device 101 has a lighting function, a video monitoring function, a road indicating function and a communication function, wherein the video monitoring function is used for shooting and obtaining video images at different moments, the road indicating function is used for indicating the direction of an evacuation path, the communication function is used for uploading the collected video images to a controller in a building area where the emergency lighting indicating device belongs and receiving the evacuation path sent by the controller;
the controller 102 is configured to supply power to the emergency lighting indication device in the control area, send the received video image to the background server, receive the evacuation path sent by the background server, and send the evacuation path to the emergency lighting indication device;
The background server 103 is configured to perform frequent pattern mining on the collected emergency track data set, and obtain an optimal evacuation path adopted by most people in the current environment.
In detail, the modules in the emergency lighting and evacuation indication system 100 in the embodiment of the present invention use the same technical means as those of the emergency lighting and evacuation indication system described in fig. 1 and can produce the same technical effects, which are not described herein.
Example 3:
fig. 3 is a schematic structural diagram of an electronic device implementing an emergency lighting and evacuation indication system according to an embodiment of the present invention.
The electronic device 1 may comprise a processor 10, a memory 11, a communication interface 13 and a bus, and may further comprise a computer program, such as program 12, stored in the memory 11 and executable on the processor 10.
The memory 11 includes at least one type of readable storage medium, including flash memory, a mobile hard disk, a multimedia card, a card memory (e.g., SD or DX memory, etc.), a magnetic memory, a magnetic disk, an optical disk, etc. The memory 11 may in some embodiments be an internal storage unit of the electronic device 1, such as a removable hard disk of the electronic device 1. The memory 11 may in other embodiments also be an external storage device of the electronic device 1, such as a plug-in mobile hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card) or the like, which are provided on the electronic device 1. Further, the memory 11 may also include both an internal storage unit and an external storage device of the electronic device 1. The memory 11 may be used not only for storing application software installed in the electronic device 1 and various types of data, such as codes of the program 12, but also for temporarily storing data that has been output or is to be output.
The processor 10 may be comprised of integrated circuits in some embodiments, for example, a single packaged integrated circuit, or may be comprised of multiple integrated circuits packaged with the same or different functions, including one or more central processing units (Central Processing unit, CPU), microprocessors, digital processing chips, graphics processors, combinations of various control chips, and the like. The processor 10 is a Control Unit (Control Unit) of the electronic device, connects the respective components of the entire electronic device using various interfaces and lines, executes or executes programs or modules (a program 12 for realizing emergency lighting and evacuation instructions, etc.) stored in the memory 11, and invokes data stored in the memory 11 to perform various functions of the electronic device 1 and process the data.
The communication interface 13 may comprise a wired interface and/or a wireless interface (e.g. WI-FI interface, bluetooth interface, etc.), typically used to establish a communication connection between the electronic device 1 and other electronic devices and to enable connection communication between internal components of the electronic device.
The bus may be a peripheral component interconnect standard (peripheral component interconnect, PCI) bus or an extended industry standard architecture (extended industry standard architecture, EISA) bus, among others. The bus may be classified as an address bus, a data bus, a control bus, etc. The bus is arranged to enable a connection communication between the memory 11 and at least one processor 10 etc.
Fig. 3 shows only an electronic device with components, it being understood by a person skilled in the art that the structure shown in fig. 3 does not constitute a limitation of the electronic device 1, and may comprise fewer or more components than shown, or may combine certain components, or may be arranged in different components.
For example, although not shown, the electronic device 1 may further include a power source (such as a battery) for supplying power to each component, and preferably, the power source may be logically connected to the at least one processor 10 through a power management device, so that functions of charge management, discharge management, power consumption management, and the like are implemented through the power management device. The power supply may also include one or more of any of a direct current or alternating current power supply, recharging device, power failure detection circuit, power converter or inverter, power status indicator, etc. The electronic device 1 may further include various sensors, bluetooth modules, wi-Fi modules, etc., which will not be described herein.
The electronic device 1 may optionally further comprise a user interface, which may be a Display, an input unit, such as a Keyboard (Keyboard), or a standard wired interface, a wireless interface. Alternatively, in some embodiments, the display may be an LED display, a liquid crystal display, a touch-sensitive liquid crystal display, an OLED (Organic Light-Emitting Diode) touch, or the like. The display may also be referred to as a display screen or display unit, as appropriate, for displaying information processed in the electronic device 1 and for displaying a visual user interface.
It should be understood that the embodiments described are for illustrative purposes only and are not limited to this configuration in the scope of the patent application.
Specifically, the specific implementation method of the above instructions by the processor 10 may refer to descriptions of related steps in the corresponding embodiments of fig. 1 to 3, which are not repeated herein.
It should be noted that, the foregoing reference numerals of the embodiments of the present invention are merely for describing the embodiments, and do not represent the advantages and disadvantages of the embodiments. And the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, apparatus, article, or method 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, apparatus, article, or method. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, apparatus, article or method that comprises the element.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) as described above, comprising instructions for causing a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the method according to the embodiments of the present invention.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.

Claims (9)

1. An emergency lighting and evacuation indication system, wherein the system operational flow comprises:
s1: arranging an emergency lighting indicating device in an internal area of a building according to a disambiguation principle, marking the numbers of the emergency lighting indicating devices in the internal area and an outlet area of the building by a background server, wherein the emergency lighting indicating device has a video monitoring function;
s2: acquiring a personnel image passing through the area in real time by utilizing a video monitoring function of the emergency illumination indicating device, and carrying out multi-target identification on the acquired personnel image data;
s3: the serial numbers of the emergency lighting indicating devices, the corresponding identification results and the image acquisition time are sent to a background server, and the background server continuously records the serial numbers of the emergency lighting indicating devices, the corresponding identification results and the image acquisition time data and classifies the serial numbers according to the identification results to obtain serial data of each person passing through different areas at different time;
S4: traversing from the sequence data to obtain sequence data with the same emergency lighting indicating device number as that of the exit area, wherein the sequence data is emergency track data of successful evacuation personnel;
s5: frequent pattern mining is carried out on the collected emergency track data set, and an optimal evacuation path adopted by most people in the current environment is obtained;
s6: and adjusting the indication direction of the emergency lighting indication device in the corresponding area according to the obtained optimal evacuation path, and guiding personnel to evacuate rapidly.
2. An emergency lighting and evacuation indication system according to claim 1, wherein in step S1, emergency lighting indication devices are arranged in an interior area of a building according to a disambiguation principle, and the emergency lighting and evacuation indication system comprises:
the method comprises the steps of constructing an emergency lighting indicating device, wherein the emergency lighting indicating device is provided with a lighting function, a video monitoring function, a road indicating function and a communication function, the video monitoring function is used for shooting video images at different moments, the road indicating function is used for indicating the direction of an evacuation path, the communication function is used for uploading the collected video images to a controller in a building area to which the emergency lighting indicating device belongs and receiving the evacuation path sent by the controller, the controller in the building area is used for supplying power to the emergency lighting indicating device in the area, sending the received video images to a background server, receiving the evacuation path sent by the background server and sending the evacuation path to the emergency lighting indicating device;
An emergency lighting indicating device is arranged in an internal area of a building according to a disambiguation principle, the disambiguation principle indicates that the emergency lighting indicating device can indicate all potential channels in the area, ambiguity does not exist, and the deployment flow of the emergency lighting indicating device is as follows:
s11: a controller is deployed on each floor of a building area, and the controller is used for supplying power to all emergency illumination indicating devices in the floor, receiving monitoring video pictures and sending evacuation paths;
s12: deploying an emergency lighting indicating device at a stair opening of the building area, wherein the emergency lighting indicating device at the stair opening is controlled by a controller of the same floor; deploying the emergency lighting indicating device at the intersection and the exit where the emergency lighting indicating device is not deployed;
s13: using an emergency lighting indicating device at a stair opening as a starting point, deploying the emergency lighting indicating device at intervals of L meters along the direction perpendicular to the stair, and after deploying the emergency lighting indicating device along the direction perpendicular to the stair, respectively deploying the emergency lighting indicating device at intervals of L meters along the direction parallel to the stair for the deployed emergency lighting indicating device, wherein L meets the following formula:
Figure QLYQS_1
；
Wherein:
s represents the floor area and,
Figure QLYQS_2
indicating the maximum number of emergency lighting indicating devices that the controller can control,/->
Figure QLYQS_3
Representing an emergency lighting indication device deployed at an intersection within a floor;
s14: the controller detects the output voltage of the controlled emergency lighting indicating device in real time, and if the detected output voltage reaches the preset minimum output voltage of the emergency lighting indicating device
Figure QLYQS_4
When the emergency lighting indicating device is in use, the emergency lighting indicating device is automatically charged for a period of time equal to +.>
Figure QLYQS_5
：
Figure QLYQS_6
；
Wherein:
Figure QLYQS_7
indicating the rated stored energy value of the emergency lighting indicator, < >>
Figure QLYQS_8
Indicating the maximum output voltage preset by the emergency lighting indicating device, < >>
Figure QLYQS_9
Representing the charging power of the controller;
s15: in daily conditions, the controller controls the output power of the emergency lighting indicating device to be
Figure QLYQS_10
At this time, the illumination of the emergency lighting indicating device is +.>
Figure QLYQS_11
Wherein R represents the on-resistance value of the emergency lighting indicating device, and the controller adjusts the output power of the emergency lighting indicating device to +.>
Figure QLYQS_12
，/>
Figure QLYQS_13
And (5) increasing the illuminance of the emergency lighting indicating device and performing evacuation indication.
3. An emergency lighting and evacuation indication system according to claim 2, wherein the step S1 of marking the emergency lighting indication device number of the building interior and the exit area at the background server comprises:
Marking the numbers of the emergency lighting indicating devices in the building and in the exit area at the background server, wherein the numbers of the emergency lighting indicating devices are as follows:
numbering the emergency lighting indicating devices by adopting a two-section coding mode, wherein the numbering result of any ith emergency lighting indicating device is that
Figure QLYQS_14
，/>
Figure QLYQS_15
Representing the building floor number of the ith emergency lighting indicating device,
Figure QLYQS_16
a serial number indicating that the ith emergency lighting indicating device is on the corresponding floor;
and marks the number of the emergency lighting indicating device at the outlet
Figure QLYQS_17
Wherein->
Figure QLYQS_18
Indicating the floor at the j-th exit, < > where>
Figure QLYQS_19
Indicating floor->
Figure QLYQS_20
A serial number of the emergency lighting indicating device at the middle exit;
the serial number is calculated by taking an emergency lighting indicating device at the main building entrance of the floor as an initial serial number 0 and numbering the rest emergency lighting indicating devices in a clockwise sequence.
4. An emergency lighting and evacuation indication system according to claim 1, wherein in step S2, a person image passing through the area is acquired in real time by using a video monitoring function of the emergency lighting indication device, and the acquired person image data is subjected to multi-object recognition, including:
When emergency evacuation is required in a building, the controllers of different floors control and regulate the output power of all emergency illumination indicating devices in the building, so as to regulate the illumination of the emergency illumination indicating devices, and enable the video monitoring function of the emergency illumination indicating devices, acquire personnel images passing through the area in real time by utilizing the video monitoring function of the emergency illumination indicating devices, upload the acquired personnel images to the controllers, and carry out multi-target recognition on the acquired personnel image data, wherein the multi-target recognition results represent the face images acquired by different emergency illumination indicating devices at different moments;
the process of the background server for carrying out multi-target identification on the received personnel image data is as follows:
s21: the background server receives the personnel image, preprocesses each pixel in the personnel image, converts the pixel of the RGB color channel into a color mode of Lab, and then the value of any kth pixel in the image in the L brightness channel is
Figure QLYQS_21
The value in the a color channel is +.>
Figure QLYQS_22
The value in the b color channel is +.>
Figure QLYQS_23
；
S22: calculating the color factor of the personnel image, if the absolute value of the color factor exceeds the threshold value
Figure QLYQS_24
If the color cast problem caused by unbalanced brightness exists in the personnel image, respectively carrying out histogram equalization processing on an a-color channel and a b-color channel of the personnel image to obtain the personnel image with enhanced brightness, wherein the calculation formula of the color factors is as follows:
Figure QLYQS_25
；
Wherein:
d represents a color factor, and K represents the total number of pixels in the person image;
s23: setting a search box with a fixed size, performing traversal search on the person image with enhanced brightness by using the search box, calculating RGB color histograms of local areas of each person image obtained by traversal search, marking the local areas as face areas if the RGB color histograms of the traversed local areas accord with the RGB color histogram range of the preset face image, and performing graying treatment on the face areas;
s24: extracting space feature vector of face region
Figure QLYQS_26
：
Figure QLYQS_27
；
Figure QLYQS_28
；
Figure QLYQS_29
；
Wherein:
Figure QLYQS_30
representing the spatial feature value of the H-th pixel in the face region, H representing the total number of pixels in the face region,
Figure QLYQS_31
a spatial feature vector representing a face region;
Figure QLYQS_32
representing +.about.h pixel in face region as center>
Figure QLYQS_33
Pixel matrix of size +.>
Figure QLYQS_34
Representing convolution operations +.>
Figure QLYQS_35
Characteristic values representing in horizontal space, +.>
Figure QLYQS_36
Representing the eigenvalues in vertical space;
s25: and taking the spatial characteristics of all face areas in the personnel image as a multi-target recognition result.
5. An emergency lighting and evacuation indication system according to claim 1, wherein in step S3, the emergency lighting indication device number, the corresponding identification result, and the image acquisition time are transmitted to a background server, and the background server continuously records the emergency lighting indication device number, the corresponding identification result, and the image acquisition time data, and classifies the emergency lighting indication device number, the corresponding identification result, and the image acquisition time data according to the identification result, and comprises:
The controller sends the serial number of the emergency lighting indicating device, the corresponding identification result and the image acquisition time to the background server, the background server continuously records the serial number of the emergency lighting indicating device, the corresponding identification result and the image acquisition time data and classifies the serial number, the corresponding identification result and the image acquisition time data according to the identification result, and the classification flow of the data recorded by the background server is as follows:
s31: the background server sorts the identification results and the corresponding emergency lighting indicating device numbers according to the image acquisition time sequence;
s32: sequentially calculating cosine similarity of identification results of different emergency illumination indicating devices at different image acquisition moments, and for the moments
Figure QLYQS_37
Emergency lighting indicator +.>
Figure QLYQS_38
Is->
Figure QLYQS_39
Emergency lighting indicating device
Figure QLYQS_40
The acquired identification results of the personnel images show that a person is in a moment +.>
Figure QLYQS_41
During the period, by the position->
Figure QLYQS_42
Arrival position
Figure QLYQS_43
；
S33: and repeating the step S32 to obtain sequence data of time sequence evacuation paths of different people, wherein the time sequence evacuation paths represent path sequences of positions of the people at different moments.
6. An emergency lighting and evacuation indication system according to claim 5, wherein traversing from the sequence data in step S4 obtains sequence data having an emergency lighting indication device number that is the same as an emergency lighting indication device number of the exit area, comprising:
Traversing the sequence data to obtain sequence data with the same emergency lighting indicating device number as that of the exit area, and forming an emergency track data set from the sequence data obtained by traversing, wherein the emergency track data set comprises all sequence data successfully reaching the exit area.
7. An emergency lighting and evacuation indication system according to claim 6, wherein the step S5 of frequent pattern mining of the collected emergency trajectory data set comprises:
the background server performs frequent pattern mining on the acquired emergency track data set to obtain a current optimal evacuation path, wherein the frequent pattern mining process comprises the following steps of:
s51: classifying the emergency track data sets to obtain emergency track data sets of each floor;
s52: for an emergency track data set of any floor, the numbers of the emergent illumination indicating devices which appear are constructed into 1-frequent sets, and the frequency of each emergent illumination indicating device is calculated, wherein the calculation formula of the frequency of occurrence is as follows: dividing the number of tracks with the frequent set in the emergent track data set by the total number of tracks in the emergent track data set;
S53: deleting the emergency lighting indicating device numbers with the occurrence frequency smaller than 0.1 from the 1-frequent set, and deleting the emergency track data with the corresponding deleted numbers from the emergency track data set;
s54: combining the serial numbers of the emergency lighting indicating devices in the (w-1) -frequent set to obtain a w-frequent set, wherein the serial numbers of the emergency lighting indicating devices in the w-frequent set are combined into sequences with the length of w serial numbers, the initial value of w is 2, and the occurrence frequency of each sequence is calculated;
s55: deleting the emergency lighting indicating device number sequence with the frequency smaller than 0.1 from the w-frequent set, deleting the emergency track data with the corresponding deleted number sequence from the emergency track data set, and returning to the step S54, wherein w=w+1;
s56: repeating the steps until the final arbitrary W-frequent set is an empty set, wherein the W-frequent set is an empty set, which means that only one number sequence exists in the (W-1) -frequent set, and taking the number sequence in the (W-1) -frequent set as the current optimal evacuation path of any floor.
8. The emergency lighting and evacuation indication system of claim 7, wherein in step S6, the indication direction of the emergency lighting indication device of the corresponding area is adjusted according to the obtained optimal evacuation path in the current environment, and the rapid evacuation of the person is guided, comprising:
The background server sends the current optimal evacuation paths of different floors to controllers of corresponding floors, and the controllers adjust the indication direction of the emergency lighting indication device of the floor according to the acquired optimal evacuation paths in the current environment to guide people to evacuate rapidly.
9. An emergency lighting and evacuation indication system, the system structure comprising:
the emergency lighting indicating device is provided with a lighting function, a video monitoring function, a road indicating function and a communication function, wherein the video monitoring function is used for shooting and obtaining video images at different moments, the road indicating function is used for indicating the direction of an evacuation path, and the communication function is used for uploading the collected video images to a controller in a building area where the emergency lighting indicating device belongs and receiving the evacuation path sent by the controller;
the controller is used for supplying power to the emergency lighting indicating device in the control area, sending the received video image to the background server, receiving the evacuation path sent by the background server and sending the evacuation path to the emergency lighting indicating device;
the background server is used for carrying out frequent pattern mining on the collected emergency track data set to obtain an optimal evacuation path adopted by most people in the current environment so as to realize the emergency lighting and evacuation indicating system according to any one of claims 1-8.
CN202310342948.4A 2023-04-03 2023-04-03 Emergency lighting and evacuation indicating system Active CN116432879B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310342948.4A CN116432879B (en) 2023-04-03 2023-04-03 Emergency lighting and evacuation indicating system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310342948.4A CN116432879B (en) 2023-04-03 2023-04-03 Emergency lighting and evacuation indicating system

Publications (2)

Publication Number Publication Date
CN116432879A true CN116432879A (en) 2023-07-14
CN116432879B CN116432879B (en) 2024-04-23

Family

ID=87090147

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310342948.4A Active CN116432879B (en) 2023-04-03 2023-04-03 Emergency lighting and evacuation indicating system

Country Status (1)

Country Link
CN (1) CN116432879B (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN207733041U (en) * 2017-12-23 2018-08-14 北京凯博尊电气设备有限公司 A kind of fire emergency and evacuation indication system
CN112148828A (en) * 2020-09-30 2020-12-29 广元量知汇科技有限公司 Emergency management method based on smart community
CN113327079A (en) * 2021-05-28 2021-08-31 东北师范大学 Path selection potential factor visual analysis method based on network car booking track
CN113553516A (en) * 2021-09-18 2021-10-26 南京森根科技股份有限公司 Frequent track mining method based on fuzzy path
US20220377523A1 (en) * 2019-11-06 2022-11-24 Sanofi Emergency Management System and Method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN207733041U (en) * 2017-12-23 2018-08-14 北京凯博尊电气设备有限公司 A kind of fire emergency and evacuation indication system
US20220377523A1 (en) * 2019-11-06 2022-11-24 Sanofi Emergency Management System and Method
CN112148828A (en) * 2020-09-30 2020-12-29 广元量知汇科技有限公司 Emergency management method based on smart community
CN113327079A (en) * 2021-05-28 2021-08-31 东北师范大学 Path selection potential factor visual analysis method based on network car booking track
CN113553516A (en) * 2021-09-18 2021-10-26 南京森根科技股份有限公司 Frequent track mining method based on fuzzy path

Also Published As

Publication number Publication date
CN116432879B (en) 2024-04-23

Similar Documents

Publication Publication Date Title
WO2020078229A1 (en) Target object identification method and apparatus, storage medium and electronic apparatus
Mahmoud et al. Forest fire detection and identification using image processing and SVM
KR101753117B1 (en) Lpr system for controlling entrance time and exit time of vehicle by implementing camera and lpr module integrally and the method threof
CN103287943B (en) A kind of Intelligent elevator management system
CN110765848A (en) Chemical plant personnel safety guarantee system and early warning method based on artificial intelligence image processing algorithm
CN107766846A (en) Vehicle identification method and device, inspection system, storage medium, electronic equipment
CN112287827A (en) Complex environment pedestrian mask wearing detection method and system based on intelligent lamp pole
CN115065798B (en) Big data-based video analysis monitoring system
CN114998838B (en) Real-time monitoring method and device for intelligent storage cabinet of hazardous chemical substances
CN103552890A (en) System and method for detecting number of people in lift car
KR20120035734A (en) A method for detecting fire or smoke
CN111369760A (en) Night pedestrian safety early warning device and method based on unmanned aerial vehicle
CN110781735A (en) Alarm method and system for identifying on-duty state of personnel
WO2016143976A1 (en) Method for recognizing operator in work site image data
CN115512387A (en) Construction site safety helmet wearing detection method based on improved YOLOV5 model
CN109919068B (en) Real-time monitoring method for adapting to crowd flow in dense scene based on video analysis
CN109643363B (en) Method, system and device for feature extraction and object detection
CN116432879B (en) Emergency lighting and evacuation indicating system
CN112101260B (en) Method, device, equipment and storage medium for identifying safety belt of operator
WO2021091053A1 (en) Location measurement system using image similarity analysis, and method thereof
CN113963162A (en) Helmet wearing identification method and device, computer equipment and storage medium
KR102118783B1 (en) Preprocessing method for color filtering robust against illumination environment and the system thereof
CN103426180B (en) Video wire mixing detection method
JP2001167273A5 (en)
CN112037235A (en) Injury picture automatic auditing method and device, electronic equipment and storage medium

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant