CN113627984A - Intelligent elevator advertisement screen system based on scene perception and advertisement putting method - Google Patents
Intelligent elevator advertisement screen system based on scene perception and advertisement putting method Download PDFInfo
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Abstract
The invention discloses an intelligent elevator advertising screen system based on scene perception and an advertisement putting method, wherein the intelligent elevator advertising screen system comprises an advertising screen, a camera A, a camera B and a rear-end server; the back-end server comprises a scene perception module, an information processing module and an advertisement screen control module; the scene perception module receives picture information shot by the camera A and the camera B and perceives scene information such as face data, behavior information and the like; the information processing module receives scene information and updates interest value data of a passenger-advertisement interest value database based on an interest value updating mechanism; and the advertisement screen control module controls the advertisement screen to carry out real-time advertisement pushing and intelligent opening and closing according to the passenger-advertisement interest value database. The elevator advertisement delivery system can be used for carrying out real-time directional advertisement delivery on passengers in the elevator, solves the problem that the conventional elevator advertisement can only be played circularly, is energy-saving and environment-friendly, and improves the elevator advertisement delivery accuracy and the intelligence of an advertisement screen.
Description
Technical Field
The invention relates to the technical field of elevator advertising screen systems, in particular to an intelligent elevator advertising screen system and an advertisement putting method based on scene perception.
Background
Advertisement is an advertisement that informs the public of a certain thing. In recent years, the ladder media with stable flow and multiple scenes rapidly rises up and becomes the gold medium for offline advertisements. This is because in this special closed space of the elevator, the information interference is small, the reach rate and memory rate of the advertisement are high, and the user is more easily affected by the advertisement than in other scenes.
However, the traditional elevator advertising screen only supports the blind carousel display of the advertising machinery in the advertising library, and cannot carry out targeted advertisement delivery according to the identity and interest of passengers, so that the advertisement delivery accuracy is low. Therefore, how to enable elevator advertisements to be intelligently pushed directionally based on different crowds is a popular application research direction in recent years.
For example, chinese patent publication No. CN110766451A discloses an elevator advertisement delivery method and system based on human static tags. According to the invention, the advertisement category played by the elevator screen is controlled according to the inquired passenger age, sex and other information by acquiring the passenger face data in the elevator and inquiring the passenger information in the data server, so that the accurate advertisement delivery under the scene of frequent people flow and narrow space, such as the elevator, is realized. However, this solution has the disadvantages that:
the method needs to input tag data such as the faces, the sexes and the ages of passengers into a data server in advance, is only suitable for scenes such as community elevators with fixed entrances and exits, and cannot automatically generate a personal database for strange passengers who are not in the database.
For another example, chinese patent publication No. CN112423034A discloses an elevator advertising screen intelligent play control system and method. The elevator advertisement playing device comprises an information determining module, a playing control module, a verification module and a main control module, and the advertisement playing time in an advertisement screen is adjusted through the playing control module according to the total waiting time required by an elevator, so that a user can deepen memory of the content played by the advertisement within only time. The scheme has the following defects:
the scheme focuses on the intellectualization of the advertisement playing time and the playing mode, but not on the oriented advertisement pushing based on the interest value data of passengers in the elevator, and similarly, the system can only identify the existing face information in the database, cannot generate the database for strange passengers, and is only suitable for intelligent advertisement pushing in places with fixed crowds.
Disclosure of Invention
Aiming at the problems, the invention provides an intelligent elevator advertising screen system and an advertising method based on scene perception, which can automatically establish an interest value database for all passengers getting in and out of an elevator, thereby realizing the real-time and directional advertisement push for the passengers in the elevator, solving the problem that the traditional elevator advertisement can only push advertisements in turn, and also solving the problem that the current intelligent elevator advertising screen at the front edge can only be used for pushing the intelligent advertisements in places with relatively fixed crowds. The invention improves the flexibility and intelligence of elevator advertisement putting and has wider use scene.
The purpose of the invention can be realized by the following technical scheme:
an intelligent elevator advertisement screen based on scene perception comprises an advertisement screen, a camera A, a camera B and a rear-end server;
the advertisement screen is connected with the back-end server, is used as an external display screen of the back-end server and is used for playing advertisements;
the camera A is connected with the rear-end server, is arranged on the inner wall in front of the elevator and is used for shooting a picture in front of the elevator and transmitting the shot picture information to the rear-end server;
the camera B is connected with the rear-end server, is arranged on the advertisement screen and is used for shooting passenger pictures in front of the advertisement screen and transmitting the shot picture information to the rear-end server;
a scene sensing module, an information processing module and an advertising screen control module are arranged in the back-end server;
an elevator advertisement putting method is characterized in that: the advertisement putting method comprises the following steps:
s1: carrying out face recognition on passengers entering the elevator by using a face recognition module in the scene perception module;
s2: utilizing a behavior information identification module in the scene perception module to identify the watching advertisement time and the expression feedback of the passenger, and transmitting the watching advertisement time information and the expression feedback information of the passenger to an information processing module;
s3: the information processing module establishes and updates a passenger-advertisement interest value base according to an interest value updating mechanism, and extracts interest value data of the passenger in the elevator for the advertisement in the advertisement base;
s4: respectively counting the sum of interest values of different passengers in the current elevator to each advertisement in the advertisement library;
s5: comparing the sum of interest values of different advertisements in the advertisement library, and determining the advertisement with the maximum accumulated interest value;
s6: if the sum of the interest values of the advertisements with the maximum accumulated interest values is positive, the advertisement is played; if the sum of the interest values of the advertisements with the maximum accumulated interest values is a non-positive number, no advertisement is played;
s7: and controlling the intelligent opening and closing of the advertising screen by using the advertising screen opening and closing module, and repeatedly executing S1 when passengers exist in the elevator.
The face recognition module in the step S1 includes a face acquisition training mechanism, which is divided into a pre-training mode and a real-time training mode;
the pre-training mode is to input face data in advance and train the face data, and establish a face label in a passenger-advertising interest value database in advance for a passenger with input face information;
the real-time training mode is that after passenger face data shot by the camera A in real time is transmitted to the face recognition module, when a strange passenger is judged, the face data of the current strange passenger is trained in real time, and a face label of the passenger in the passenger-advertising interest value database is established.
In the step S2, the behavior information identification module includes expression identification and gaze time identification;
the expression recognition is to perform expression recognition on the face picture information of the passenger in front of the advertisement screen transmitted by the camera B and transmit the expression feedback information of the passenger on the currently played advertisement to the information processing module; the expression recognition result comprises positive feedback and negative feedback;
the watching time identification is used for recording the time of a passenger looking at the advertisement screen in front of the advertisement screen transmitted by the camera B and transmitting the time length information of the passenger watching the advertisement to the information processing module.
In step S3, the Passenger-advertisement interest value database is Passenger _ list ═ Passenger _ data1,passenger_data2,……passenger_datai) Wherein passger _ dataiAn information list representing passengers with face labels of i, namely a passenger-advertisement interest value database is a set of passenger information lists;
the passenger information list is passanger _ datai＝{“face_ID”:i,“ad1”:ad_data1,“ad2”:ad_data2,…,“adj”:ad_dataj0 in _ num and 0 un _ num, wherein the face _ ID of the list item represents the face label of the passenger, adjDenotes the jth advertisement in the Ad library, ad _ datajAnd the value data of interest values of the passenger on the advertisement j, wherein the in _ num and the non _ num are respectively used for recording the watching time and the non-watching time of the passenger on the currently played advertisement.
The interest value updating mechanism described in step S3 is:
after the information processing module receives expression feedback information and advertisement watching time length information of a passenger in front of the advertisement screen, which are transmitted by the camera B, if the expression of the passenger watching the advertisement is positive or the advertisement watching time is more than 5 seconds, the interest value of the passenger in currently playing the advertisement is increased; conversely, if the expression feedback of the passenger watching the advertisement is negative feedback or the watching time of the advertisement is less than 5 seconds, the interest value of the passenger on the currently played advertisement is reduced;
and updating the interest value data of the elevator passengers in real time through continuous training according to the interest value updating mechanism, so that a precise and complete dynamic passenger-advertisement interest value database can be established.
In step S6, the positive and negative of the accumulated interest value are introduced as the basis for playing the advertisement, and when the interest value of the advertisement with the highest interest value is also a negative value, the passenger in the elevator at present does not want to be disturbed by the advertisement, and the advertisement will automatically stop playing at this time, so that the passenger is given the option of playing the elevator advertisement or not.
In the step S7, the advertising screen opening and closing module intelligently opens and closes the advertising screen according to whether passengers exist in the elevator; if the camera A records that passengers exist in the elevator, the advertising screen is opened; and otherwise, when the camera A records that no passenger exists in the elevator, the advertising screen is closed.
The invention has the following advantages:
1) according to the intelligent elevator advertisement delivery system, intelligent advertisement delivery is realized according to scene information such as face data of passengers, watching time of advertisements, expression feedback of watching the advertisements and the like, the elevator advertisement delivery accuracy is improved, and the advertisement income is indirectly improved;
2) the face recognition mode combining the pre-training and the real-time training is adopted, so that the establishment of the passenger-advertisement interest value database is effective not only for passengers with recorded information, but also for strange passengers entering the elevator for the first time, and therefore the elevator screen has wider application places;
3) the intelligent opening and closing of the advertising screen is realized according to whether passengers exist in the elevator, so that the energy is saved and the environment is protected;
4) the elevator advertisement is played or not, and part of the options is given to passengers, so that the intelligent degree of the elevator is improved, and the experience of the elevator passengers is improved.
Drawings
FIG. 1 is a schematic structural diagram of an intelligent elevator advertising screen system based on scene perception according to the invention;
FIG. 2 is a flow chart of the operation of the face recognition module of the present invention;
fig. 3 is a flow chart of the operation of the real-time advertisement delivery module and the behavior information processing module according to the present invention.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in fig. 1, the intelligent elevator advertisement screen system based on scene perception comprises an advertisement screen, a camera a, a camera B and a back-end server;
the advertisement screen is connected with a back-end server, and the back-end server is connected with the camera A and the camera B; the camera A can be a monitoring camera installed in the elevator or a new camera can be installed in the elevator, is positioned on the inner wall right in front of the elevator and is used for distinguishing identity information of passengers, namely identifying and recording whether passengers exist in the elevator or not and whether the passengers of the elevator are in a passenger-advertisement interest value database or not in real time; the camera B is arranged on the advertisement screen and used for identifying and recording advertisement watching time and expression feedback of passengers in real time; the back-end server is arranged behind the advertisement screen and performs data interaction with the advertisement screen, the camera A and the camera B; the camera A, the camera B and the back-end server can select the existing common equipment, and the equipment is selected by considering the size and the location of the elevator, and any deformation is included in the scope of the invention on the basis of not departing from the technical scheme of the invention;
when the intelligent elevator advertising screen system based on scene perception works, the rear-end server is used for controlling the opening and closing of the advertising screen and playing contents and processing picture information shot by the camera A and the camera B; a scene sensing module, an information processing module and an advertising screen control module are arranged in the back-end server;
the scene sensing module comprises a face recognition module and a behavior information recognition module and is used for receiving picture information shot by the camera A and the camera B in the elevator, sensing scene information such as face data, behavior information and the like of passengers in the elevator and transmitting the sensed scene information to the information processing module;
the information processing module comprises a passenger-advertisement interest value database and an interest value updating mechanism and is used for receiving scene information such as passenger face data, behavior information and the like transmitted by the scene sensing module, creating the passenger-advertisement interest value database for passengers and updating passenger interest value data in the database in real time based on the scene information according to the interest value updating mechanism;
the advertisement screen control module comprises a real-time advertisement pushing module and an advertisement screen opening and closing module and is used for receiving the interest value data of the elevator passengers transmitted by the information processing module and controlling the advertisement screen to carry out real-time advertisement pushing and intelligent opening and closing based on the interest value data;
the face recognition module comprises a face acquisition training mechanism and is divided into a pre-training mode and a real-time training mode, wherein the pre-training mode is as follows: face data are input in advance and trained, and face labels are established in a passenger-advertising interest value database in advance for passengers with input face information; the real-time training mode is as follows: after passenger face data shot by the camera A in real time is transmitted to the face recognition module, when a strange passenger is judged, face data of the current strange passenger are trained in real time, and a face label of the passenger in a passenger-advertising interest value database is established;
example 1
FIG. 2 shows a working process of the face recognition module of the present invention; the camera A transmits the shot picture information to a back-end server face recognition module; when the face data in the current picture is judged not to be the existing passenger face data in the passenger-advertising interest value database, carrying out real-time face training on unknown passengers and creating new passenger information labels; if the passenger is a known passenger, the interest value database of the passenger-advertisement interest value is searched to obtain the interest values of the current passenger for all advertisements in the advertisement database, and the interest value data is transmitted to the information processing module; the work done by this module can be described using algorithm 1, as follows:
example 2
FIG. 3 shows the workflow of the real-time advertisement delivery module and the behavior information processing module according to the present invention;
the behavior information identification module comprises expression identification and fixation time identification; the expression recognition is to perform expression recognition on the face picture information of the passenger in front of the advertisement screen transmitted by the camera B, and transmit expression feedback information of the passenger on the currently played advertisement to the information processing module, wherein the expression recognition result comprises positive feedback and negative feedback; the watching time identification is to record the time of the passenger looking at the advertisement screen before the advertisement screen transmitted by the camera B and transmit the time length information of the passenger watching the advertisement to the information processing module, and the watching time identification method comprises the following steps: if the camera B captures the front face information of the passenger in front of the screen, the passenger is watching the advertisement screen, and capturing the frame frames in a circulating manner, and if the watching time is continued, the number of the captured frame frames of the front face of the renamed passenger facing the camera B is increased. The information processing module receives the expression feedback and the watching advertisement duration information of the passenger in front of the advertisement screen transmitted by the camera B, and updates the passenger interest value data in real time based on the scene information according to an interest value updating mechanism;
the principle of the interest value updating mechanism is as follows: the camera B records the positive expression feedback or the watching time of more than 5 seconds when the passenger watches the advertisement, and increases the interest value of the passenger on the currently played advertisement; on the contrary, the camera B records the negative expression feedback of the passenger watching the advertisement or the watching time of less than 5 seconds, and reduces the interest value of the passenger on the currently played advertisement;
in summary, the interest value update mechanism can be described by algorithm 2, which is as follows:
the real-time advertisement pushing module receives the interest value data of the elevator passengers transmitted by the information processing module and carries out real-time advertisement pushing based on the interest value data; when the highest accumulated interest value of the passenger for the advertisement is a positive value, the real-time advertisement pushing module plays the advertisement with the highest accumulated interest value on an advertisement screen, and the advertisement is switched based on real-time dynamic interest value data; when the highest accumulated interest value of the passenger on the advertisement is a non-positive value, the real-time advertisement pushing module does not play any advertisement; the real-time advertisement push module workflow can be described by algorithm 3, which is as follows:
having thus described various embodiments of the present invention, the foregoing description is intended to be illustrative, not exhaustive, and not limited to the embodiments disclosed; many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.
Claims (7)
1. The utility model provides an intelligence elevator advertising screen system based on scene perception which characterized in that: including advertising screen, camera A, camera B and rear end server:
the advertisement screen is connected with the rear-end server to serve as an external display screen of the rear-end server, is used for playing advertisements and is arranged on the side wall in the elevator;
the camera A is connected with the rear-end server, is arranged on the inner wall in front of the elevator and is used for shooting a picture in front of the elevator and transmitting the shot picture information to the rear-end server;
the camera B is connected with the rear-end server, is arranged on the advertisement screen and is used for shooting passenger pictures in front of the advertisement screen and transmitting the shot picture information to the rear-end server;
the back-end server is internally provided with a scene sensing module, an information processing module and an advertising screen control module;
the scene sensing module comprises a face recognition module and a behavior information recognition module and is used for receiving picture information shot by the camera A and the camera B in the elevator, sensing scene information such as face data, behavior information and the like of passengers in the elevator and transmitting the sensed scene information to the information processing module;
the information processing module comprises a passenger-advertisement interest value database and an interest value updating mechanism and is used for receiving scene information such as passenger face data, behavior information and the like transmitted by the scene sensing module, creating the passenger-advertisement interest value database for passengers and updating passenger interest value data in the database in real time based on the scene information according to the interest value updating mechanism;
the advertisement screen control module comprises a real-time advertisement pushing module and an advertisement screen opening and closing module and is used for receiving the interest value data of the elevator passengers transmitted by the information processing module and controlling the advertisement screen to carry out real-time advertisement pushing and intelligent opening and closing based on the interest value data.
2. An elevator advertisement putting method is characterized in that: the advertisement putting method comprises the following steps:
s1: carrying out face recognition on passengers entering the elevator by using a face recognition module in the scene perception module;
s2: utilizing a behavior information identification module in the scene perception module to identify the watching advertisement time and the expression feedback of the passenger, and transmitting the watching advertisement time information and the expression feedback information of the passenger to an information processing module;
s3: the information processing module establishes and updates a passenger-advertisement interest value base according to an interest value updating mechanism, and extracts interest value data of the passenger in the elevator for the advertisement in the advertisement base;
s4: respectively counting the sum of interest values of different passengers in the current elevator to each advertisement in the advertisement library;
s5: comparing the sum of interest values of different advertisements in the advertisement library, and determining the advertisement with the maximum accumulated interest value;
s6: if the sum of the interest values of the advertisements with the maximum accumulated interest values is positive, the advertisement is played; if the sum of the interest values of the advertisements with the maximum accumulated interest values is a non-positive number, no advertisement is played;
s7: and controlling the intelligent opening and closing of the advertising screen by using the advertising screen opening and closing module, and repeatedly executing S1 when passengers exist in the elevator.
3. The method of claim 2, wherein the face recognition module in step S1 includes a face acquisition training mechanism, which is divided into a pre-training mode and a real-time training mode;
the pre-training mode is to input face data in advance and train the face data, and establish a face label in a passenger-advertising interest value database in advance for a passenger with input face information;
the real-time training mode is that after passenger face data shot by the camera A in real time is transmitted to the face recognition module, when a strange passenger is judged, the face data of the current strange passenger is trained in real time, and a face label of the passenger in the passenger-advertising interest value database is established.
4. The elevator advertising method according to claim 2, wherein the behavior information recognition module in step S2 includes expression recognition and gaze time recognition;
the expression recognition is to perform expression recognition on the face picture information of the passenger in front of the advertisement screen transmitted by the camera B and transmit the expression feedback information of the passenger on the currently played advertisement to the information processing module; the expression recognition result comprises positive feedback and negative feedback;
the watching time identification is used for recording the time of a passenger looking at the advertisement screen in front of the advertisement screen transmitted by the camera B and transmitting the time length information of the passenger watching the advertisement to the information processing module.
5. The method of claim 2, wherein in step S3, the Passenger-advertisement interest value database is Passenger _ list ═ data (Passenger _ data)1,passenger_data2,……passenger_datai) Wherein passger _ dataiAn information list representing passengers with face labels of i, namely a passenger-advertisement interest value database is a set of passenger information lists;
the passenger information list is passanger _ datai＝{“face_ID”:i,“ad1”:ad_data1,“ad2”:ad_data2,…,“adj”:ad_dataj0 in _ num and 0 un _ num, wherein the face _ ID of the list item represents the face label of the passenger, adjDenotes the jth advertisement in the Ad library, ad _ datajAnd the value data of interest values of the passenger on the advertisement j, wherein the in _ num and the non _ num are respectively used for recording the watching time and the non-watching time of the passenger on the currently played advertisement.
6. The method of claim 2, wherein the interest value updating mechanism in step S3 is:
after the information processing module receives expression feedback information and advertisement watching time length information of a passenger in front of the advertisement screen transmitted by the camera B, if the expression of the passenger watching the advertisement is positive or the advertisement watching time is more than 5 seconds, the interest value of the passenger for the currently played advertisement is increased in the passenger-advertisement interest value database; conversely, if the expression feedback of the passenger watching the advertisement is negative feedback or the watching time of the advertisement is less than 5 seconds, the interest value of the passenger on the currently played advertisement is reduced;
and updating the interest value data of the elevator passengers in real time through continuous training according to the interest value updating mechanism, so that a precise and complete dynamic passenger-advertisement interest value database can be established.
7. The elevator advertisement putting method according to claim 2, wherein the advertisement screen opening and closing module performs intelligent opening and closing of the advertisement screen according to whether passengers are in the elevator in step S7; if the camera A records that passengers exist in the elevator, the advertising screen is opened; and otherwise, when the camera A records that no passenger exists in the elevator, the advertising screen is closed.
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