CN109214839B - Advertisement audience dynamic detection circuit and outdoor advertisement audience number detection method - Google Patents
Advertisement audience dynamic detection circuit and outdoor advertisement audience number detection method Download PDFInfo
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Abstract
The invention provides an advertisement audience dynamic detection circuit and a related detection device and method, wherein the advertisement audience dynamic detection circuit carries out the detection operation of the number of outdoor advertisement audiences, and comprises the following steps: receiving a probe request information frame sent by other wireless communication devices; recording the receiving time of the detection request information frame; checking the information frame column position configuration of the detection request information frame; allocating the probe request information frame to a corresponding data group according to the receiving time, the information frame column bit configuration and the sequence control value in the header of the probe request information frame, and ensuring that the information frame column bit configurations of all the probe request information frames in the same data group are the same; and calculating the estimation value of the number of the outdoor advertising audiences passing through the specific area in the specific time period according to the established total number of the data groups. Even if the wireless communication device adopts a random source address mechanism to send the detection request information frame, the method can still effectively identify the number of the wireless communication devices, and further estimate the number of the outdoor advertisement audiences.
Description
Technical Field
The present invention relates to an advertisement audience detection device, and more particularly, to an advertisement audience dynamic detection circuit for estimating the number of outdoor advertisement audiences passing through a specific area in a specific time period, and a related device and method for detecting the number of outdoor advertisement audiences.
Background
With the rapid development of various business behaviors, various outdoor (OOH) advertisements are increasingly emphasized. For example, various outdoor advertisements in the form of neon lights, electronic screens, light boxes, balloons, large inflatable models, flat posters, or other content presentations are found throughout the corridors or walls of various streets, parks, airports, mass transit vehicles, airships, or hallways of various establishments or units.
One of the most important performance evaluation indicators for outdoor advertising, whether it is an advertiser or an advertising agent, is the number of advertising audiences, but how to estimate the number of advertising audiences is a very complicated topic. The most traditional way for estimating the number of the outdoor advertisement audiences is to send people to stand beside the outdoor advertisement to judge and record the number of people watching the outdoor advertisement by naked eyes, but the method consumes too high labor cost and is difficult to apply to the condition of many advertisement putting places.
One of the more recently developed ways to estimate the number of audiences of outdoor advertisements is to set a camera and a computer at the advertisement placement site of the outdoor advertisement, detect the facial or appearance characteristics of the audiences of the advertisement in real time by using an image recognition technology, and record the number of the audiences of the outdoor advertisement which are not repeated. However, the image recognition technology requires a video camera, a computer, and a complicated image recognition algorithm, but the range (or angle) of the video camera is not limited, so that the required hardware cost is very considerable, the accuracy of the detection result is not ideal, and the method is not suitable for many advertisement placement sites.
Disclosure of Invention
Therefore, how to effectively reduce the cost for estimating the number of the outdoor advertisement audiences and improve the accuracy of estimating the number of the audiences so as to be suitable for various types of outdoor advertisements on a large scale is a problem to be solved in the industry.
The present disclosure provides an embodiment of a dynamic advertisement audience detection circuit for estimating the number of outdoor advertisement audiences passing through a specific area in a specific time period, the dynamic advertisement audience detection circuit comprising: a wireless receiving circuit; a storage device configured to store a program; and a processing circuit, coupled to the wireless receiving circuit and the storage device, configured to execute the program to perform the following operations: receiving a target probe request information frame sent by other wireless communication devices by using the wireless receiving circuit; recording the receiving time of the target detection request information frame; checking the information frame column position configuration of the target detection request information frame; allocating the target probe request frame to a corresponding data group according to the receiving time and frame bit configuration of the target probe request frame and the sequence control value in the header of the target probe request frame, and ensuring that the frame bit configurations of all the probe request frames in the same data group are the same, the receiving time difference between the latest two probe request frames in the same data group is smaller than a first predetermined value, and the sequence control value difference between the latest two probe request frames in the same data group is smaller than a second predetermined value; and calculating the estimation value of the number of the outdoor advertising audiences passing through the specific area in the specific time period according to the total number of the established data groups.
This specification still provides an embodiment of an outdoor advertisement audience number detection device, store in the storage device of advertisement audience dynamic detection circuit, allow outdoor advertisement audience number detection operation is carried out to advertisement audience dynamic detection circuit, outdoor advertisement audience number detection operation includes: receiving a target probe request information frame sent by other wireless communication devices by using the wireless receiving circuit; recording the receiving time of the target detection request information frame; checking the information frame column position configuration of the target detection request information frame; allocating the target probe request frame to a corresponding data group according to the receiving time and frame bit configuration of the target probe request frame and the sequence control value in the header of the target probe request frame, and ensuring that the frame bit configurations of all the probe request frames in the same data group are the same, the receiving time difference between the latest two probe request frames in the same data group is smaller than a first predetermined value, and the sequence control value difference between the latest two probe request frames in the same data group is smaller than a second predetermined value; and calculating the estimation value of the number of the outdoor advertising audiences passing through the specific area in the specific time period according to the total number of the established data groups.
The present specification also provides an embodiment of a method for detecting audience size of an outdoor advertisement, comprising: receiving a target probe request information frame sent by other wireless communication devices by using the wireless receiving circuit; recording the receiving time of the target detection request information frame; checking the information frame column position configuration of the target detection request information frame; allocating the target probe request frame to a corresponding data group according to the receiving time and frame bit configuration of the target probe request frame and the sequence control value in the header of the target probe request frame, and ensuring that the frame bit configurations of all the probe request frames in the same data group are the same, the receiving time difference between the latest two probe request frames in the same data group is smaller than a first predetermined value, and the sequence control value difference between the latest two probe request frames in the same data group is smaller than a second predetermined value; and calculating the estimation value of the number of the outdoor advertising audiences passing through the specific area in the specific time period according to the total number of the established data groups.
One of the advantages of the above embodiments is that almost everyone in the society carries with him/her a wireless communication device that generates a probe request frame, so that the number of audience outdoor advertisements passing through a specific area in a specific time period can be estimated according to the total number of source devices of the probe request frame, and an estimation result very close to the actual number can be obtained.
Another advantage of the above embodiments is that the exact number of source devices using the random source address mechanism can be effectively identified by allocating the probe request frames to the corresponding data groups according to the receiving time of the probe request frame, the frame bit allocation, and the sequence control value, thereby effectively reducing the occurrence of duplicate counts for the same source device.
Another advantage of the above embodiment is that the hardware cost of the wireless receiving circuit is much lower than that of the camera, and the detection range and detection angle are wider than that of the camera, so that the wireless receiving circuit can be applied to various types of outdoor advertisements on a large scale.
Other advantages of the present invention will be explained in more detail with reference to the following description and accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application.
Fig. 1 is a simplified functional block diagram of an outdoor advertisement delivery system according to an embodiment of the present invention.
Fig. 2 is a simplified functional block diagram of an embodiment of a process in the dynamic advertisee detecting circuit of fig. 1.
Fig. 3 is a simplified flowchart of a method for detecting audience size of an outdoor advertisement according to an embodiment of the present invention.
Fig. 4 is a simplified flowchart of an embodiment of the method for grouping probe request information frames in fig. 3.
Description of the symbols:
100 outdoor advertisement delivery system
110 advertisement presentation device
120 advertisement audience dynamic detection circuit
121 radio receiving circuit
122 storage device
123 communication circuit
124 transmission interface
125 processing circuit
126 outdoor advertisement audience quantity detection program
130a wireless communication device
130b radio communication device
130k wireless communication device
140 network
150 data statistics server
160 client device
210 receiving module
220 judging module
230 calculation module
240 grouping module
250 reward module
302-314, 402-412 method flow
Detailed Description
Embodiments of the present invention will be described below with reference to the accompanying drawings. In the drawings, the same reference numbers indicate the same or similar elements or process flows.
Fig. 1 is a simplified functional block diagram of an outdoor advertisement delivery system 100 according to an embodiment of the present invention. The outdoor advertising system 100 includes an advertisement presentation device 110, an advertisement audience dynamic detection circuit 120, a plurality of wireless communication devices (e.g., the exemplary wireless communication devices 130 a-130 k of fig. 1), a remote data statistics server 150, and one or more client devices (e.g., the exemplary client device 160 of fig. 1). As shown in fig. 1, the dynamic advertisee detecting circuit 120 in the present embodiment includes a wireless receiving circuit 121, a storage device 122, a communication circuit 123, a transmission interface 124, and a processing circuit 125, wherein the outdoor advertisee number detecting program 126 is stored in the storage device 122.
Note that, the lower case english indices a to k in the device numbers used in the present specification and drawings are only for convenience of referring to individual devices, and are not intended to limit the number of the devices to a specific number.
In the embodiment of fig. 1, the advertisement presenting device 110 may be an electronic device that presents outdoor advertisement content by various audio and video means, such as neon lights, electronic screens, light boxes, sounds, and so on. The audience dynamic detection circuit 120 is coupled to the advertisement presenting device 110, and is used for estimating the number of outdoor audiences who pass through a specific area in a specific time period. In other words, the locations of the advertisement presentation device 110 and the advertisement audience dynamic detection circuit 120 are the same or very close to each other.
In the commercial audience detection circuit 120, the wireless receiving circuit 121 may be configured to receive probe request frames (probe request frames) from a plurality of wireless communication devices nearby. The communication circuit 123 may communicate various data or instructions with the remote data statistics server 150 via the network 140 or other data transmission pipelines. The transmission interface 124 may be connected to an appropriate interface of the advertisement presentation device 110 to transmit various data or instructions with the advertisement presentation device 110 and/or receive power required by the advertisement audience dynamic detection circuit 120 to operate from the advertisement presentation device 110. The processing circuit 125 is coupled to the wireless receiving circuit 121, the storage device 122, the communication circuit 123, and the transmission interface 124, and can execute the outdoor advertisee amount detecting program 126 stored in the storage device 122 for performing an outdoor advertisee amount detecting operation.
In practice, the wireless receiving circuit 121 may be implemented by various signal receiving circuits conforming to the 802.11 related wireless communication specification. The communication circuit 123 may be implemented by various suitable circuits conforming to relevant Network communication, wireless communication, or mobile communication specifications, such as Network Card (NIC), wireless transmission (Wi-Fi) circuit, or mobile communication circuit, etc. The transmission interface 124 may be implemented by various signal interface circuits conforming to the relevant network communication, wired communication, or wireless communication specifications. For example, depending on the Communication method to be performed with the advertisement presenting device 110, the transmission Interface 124 may include one of or a combination of various circuits, such as a Universal Serial Bus (USB) Interface, a Universal Asynchronous Receiver/Transmitter (UART) Interface, a Serial Advanced Technology Attachment (SATA) Interface, a Peripheral Component Interconnect (PCI) Interface, a PCI Express Interface, a PCI-E Interface, a Network Card Interface Card (NIC) Interface, a Wi-Fi Interface, a Bluetooth (Bluetooth) Interface, a Bluetooth Low Energy (Bluetooth Low Energy, BLE) Interface, and a Near Field Communication (NFC) Interface.
The outdoor advertisee amount detecting program 126 of the advertisee dynamic detecting circuit 120 can be implemented by a computer program comprising one or more functional modules. For example, fig. 2 is a simplified functional block diagram of the outdoor audience size detection program 126 shown in fig. 1. In the embodiment of fig. 2, the outdoor advertising audience size detection program 126 includes a receiving module 210, a determining module 220, a calculating module 230, a grouping module 240, and a reporting module 250.
With the popularization of wireless communication devices, most people in the modern society carry wireless communication devices capable of performing wireless network communication, such as smart phones, tablet computers, notebook computers, and the like. Therefore, if a specific source device can be identified from the content of the wireless network packet sent by the wireless communication device near the advertisement putting place, the number of the outdoor advertisement audiences who are not present at the advertisement putting place can be estimated according to the total number of the source devices of the wireless network packet.
Initially, various brands of wireless communication devices most likely employed a real MAC address (real MAC address) mechanism. That is, the source MAC address in the wireless network packet sent by the wireless communication device is the real hardware address of the wireless communication device and does not change with time.
However, in order to improve the information security of the wireless communication device, it is known that more and more manufacturers change the wireless communication device to adopt a random MAC address (random MAC address) mechanism. That is, the wireless communication device is forced to change the source address in the sent wireless network packet every a short period of time, thereby avoiding the leakage of the real hardware address of the wireless communication device, and increasing the difficulty of malicious programs or malicious persons to acquire the personal data of the user by eavesdropping the network packet.
Therefore, the actual number of wireless communication devices near the advertisement placement site cannot be known by simply reading the content of the wireless network packet near the advertisement placement site. Therefore, the advertisement audience dynamic detection circuit 120 can accurately calculate the actual number of wireless communication devices near the advertisement placement site by using the special detection method designed by the present invention, and further estimate the number of outdoor advertisement audiences at the advertisement placement site according to the actual number of wireless communication devices.
The operation of the audience dynamic detection circuit 120 will be further described with reference to fig. 3 to 4. Fig. 3 is a simplified flowchart of a method for detecting audience size of an outdoor advertisement according to an embodiment of the present invention. Fig. 4 is a simplified flowchart of an embodiment of the method for grouping probe request information frames in fig. 3.
In operation, the processing circuit 125 of the audience dynamic detection circuit 120 executes the outdoor audience size detection program 126 stored in the storage device 122 to perform the outdoor audience size detection method of fig. 3. At this time, the receiving module 210 controls the processing circuit 125 to set the wireless receiving circuit 121 to operate in a promiscuous mode (promiscuous mode) or a monitor mode (monitor mode) to receive the probe request information frames PRF _ a to PRF _ Q sent by other wireless communication devices 130a to 130k nearby. Note that the capital english indices a to Q in the frame numbers used in the present specification and the drawings are only for convenience of referring to individual frames, and are not intended to limit the number of the frames to a specific number.
The determining module 220 of the outdoor advertisee amount detecting program 126 can flexibly set the start and end time of each specific time interval for which the outdoor advertisee amount detecting operation is to be performed. In practice, different specific time periods may have the same time length, and the individual time length of each specific time period may be adjusted according to the time factors such as morning/afternoon, day/night, etc. In addition, the determining module 220 may set the time length of each specific time interval to be less than 1 hour, half hour, 10 minutes, 5 minutes, or even as short as 1 minute, so as to collect the outdoor advertisement audience number detection result in a shorter specific time interval.
During each specific time period set by the determining module 220, the commercial audience dynamic detection circuit 120 repeats the processes 302 to 308 in fig. 3.
In the process 302, the receiving module 210 controls the processing circuit 125 to receive a probe request information frame (hereinafter referred to as a "target probe request information frame") sent by one of the other nearby wireless communication devices 130a to 130k by using the wireless receiving circuit 121.
In the process 304, the receiving module 210 controls the processing circuit 125 to record a receiving time (arrival time) of the target probe request frame. Note that the term "reception time" referred to in the specification refers to a time at which the radio receiving circuit 121 actually receives the target probe request frame, not a time value recorded in a time stamp (timestamp) field of the target probe request frame.
In the process 306, the determining module 220 controls the processing circuit 125 to check the frame field configuration (frame field configuration) of the target probe request frame.
The term "frame field configuration" as referred to in the specification refers to the number of fields, arrangement, total length of fields, and/or setting characteristics of individual field lengths of one or more predetermined tagged parameter fields in the frame body of each probe request frame, regardless of the contents recorded in the tagged parameter fields. The arrangement mode refers to the position and/or arrangement sequence of the predetermined tag parameter field in the frame body.
According to the related specifications of the general wireless communication protocol, the frame body of each probe request frame typically includes a plurality of tag Parameter fields, such as a Service Set Identifier (SSID) field, a Supported Rates (Supported Rates) field, an Extended Supported Rates (Extended Supported Rates) field, a hopping Parameter Set (FH Parameter Set) field, a direct sequence Parameter Set (DS Parameter Set) field, a contention free Parameter Set (CF Parameter Set) field, a Transmission Indicator Map (TIM) field, an independent basic service Set (IBSS Parameter Set), a high throughput Capabilities (HT Capabilities) field, an Extended high throughput Capabilities (Extended HT Capabilities) field, and one or more non-mandatory carrier self-definition (Vendor Specific) fields.
According to the results of the intensive analysis of the collected large amount of data, it is found that the number, arrangement, sum of field lengths, and/or arrangement of individual field lengths of some tag parameter fields in the probe request message frames generated by the wireless communication devices of the same brand model are generally highly consistent, but the number, arrangement, sum of field lengths, and/or arrangement of individual field lengths of the tag parameter fields in the probe request message frames generated by the wireless communication devices of different brand models are generally different.
Since different wireless communication devices have different popularity in different countries or geographic regions, some or all of the tag parameter fields that may be present in the probe request message box may be selected as the predetermined tag parameter fields to be checked by the processing circuit 125 in the process 306 according to the country or geographic region in which the outdoor advertising system 100 is actually applied.
For example, in one embodiment, the predetermined tag parameter field is one or more owner-defined fields in the probe request message frame.
In another embodiment, the predetermined tag parameter field is one or more operator-defined fields in the probe request frame, and at least one of a rate supported field, an extended rate supported field, a frequency hopping parameter set field, and a high throughput capability field in the probe request frame.
Please note that, the determining module 220 only needs to check the frame field configuration of the target probe request frame in the aforementioned process 306, and does not need to read the content recorded in the aforementioned predetermined tag parameter field.
In the process 308, the grouping module 240 and the calculating module 230 control the processing circuit 125 to allocate the target probe request frame to a corresponding data group (data group) according to the receiving time of the target probe request frame, the frame bit configuration, and the sequence control value (sequence control value) in the header of the target probe request frame, and ensure that the frame bit configurations of all probe request frames in the same data group are the same, the difference between the receiving times of the two latest probe request frames in the same data group is smaller than a first predetermined value, and the difference between the sequence control values of the two latest probe request frames in the same data group is smaller than a second predetermined value. In the present embodiment, each data group is a concept of a virtual group and corresponds to a specific information frame configuration.
In operation, the receiving module 210, the determining module 220, the calculating module 230, and the grouping module 240 repeat the aforementioned processes 302 to 308 for other probe request information frames received by the wireless receiving circuit 121, so as to group the probe request information frames received by the wireless receiving circuit 121 one by one, thereby establishing a plurality of related data groups.
At the end of the specific time period set by the determination module 220, the advertisee dynamics detection circuit 120 proceeds to the process 310 of fig. 3.
In the process 310, the calculating module 230 controls the processing circuit 125 to obtain an estimated number of wireless communication devices near the advertisement placement site passing through the advertisement presenting device 110 during the aforementioned specific period of time according to the total number of the established data groups. In this embodiment, the calculation module 230 may estimate that the probe request information frames allocated to the same data group are generated by the same wireless communication device, and the calculation module 230 may estimate that the two probe request information frames allocated to different data groups are generated by different wireless communication devices. The calculation module 230 can directly utilize the total number of the established data groups as the number estimation value of the wireless communication devices. Then, the determining module 220 can control the processing circuit 125 to calculate an estimated outdoor advertisement audience size passing through the specific area in the specific period according to the calculated estimated wireless communication device size.
For example, the determining module 220 can control the processing circuit 125 to directly use the calculated estimated number of wireless communication devices as the estimated number of the outdoor advertisee. Alternatively, the determining module 220 can control the processing circuit 125 to perform a weighted calculation on the calculated estimated number of wireless communication devices to convert the estimated number of wireless communication devices into a corresponding estimated number of outdoor advertising audiences.
In the process 312, the calculating module 230 controls the processing circuit 125 to calculate a receiving time difference between the latest and the oldest probe request frames in a target data group, so as to estimate a staying time length of the wireless communication device corresponding to the target data group in a specific area within the wireless signal receiving range of the wireless receiving circuit 121. For example, the calculation module 230 may control the processing circuit 125 to directly use the calculated receiving time difference as an estimated value of the staying time length of the wireless communication device corresponding to the target data group in the specific area. Alternatively, the calculating module 230 may also control the processing circuit 125 to perform a weighted calculation on the calculated receiving time differences to serve as an estimated value of the staying time length of the wireless communication device corresponding to the target data group in the specific area.
By the operation of the process 312, the calculating module 230 can control the processing circuit 125 to estimate the length of the stay time of each wireless communication device in the specific area.
In the process 314, the reporting module 250 controls the processing circuit 125 to utilize the communication circuit 123 to transmit the estimated outdoor advertisee number passing through the specific area in the specific time period and the length of stay of each wireless communication device in the specific area to the remote data statistics server 150 through the network.
The remote data statistics server 150 can perform benefit evaluation of outdoor advertisement delivery, periodic analysis of people flow in a specific area, and/or analysis of preference behavior of offline consumers according to the reported data transmitted from the advertisement audience dynamic detection circuit 120, and transmit the analyzed result to the client device 160 through a network or other suitable data transmission methods, so that the advertiser or advertisement agent can know the related analysis result.
The probe request frame grouping method of the aforementioned process 308 will be further described with reference to fig. 4.
As shown in FIG. 4, when the ADR circuit 120 performs the process 308 on the target probe request frame, a process 402 is performed. In the process 402, the grouping module 240 controls the processing circuit 125 to determine whether the frame bit configuration of the target probe request frame corresponds to any data group.
If the processing circuit 125 determines that there are no data groups corresponding to the same frame slot configuration, the advertiser dynamics detection circuit 120 proceeds to process 404. For example, if the frame and slot configurations corresponding to all the data groups established by the grouping module 240 are different from the frame and slot configuration of the target probe request frame, or if no data group is established by the grouping module 240, the dynamic advertisee detecting circuit 120 proceeds to the process 404.
In the process 404, the grouping module 240 controls the processing circuit 125 to create a new data group, allocate the target probe request frame to the new data group, and set the frame bit configuration corresponding to the new data group to be the same as the frame bit configuration of the target probe request frame. The grouping module 240 then proceeds to flow 406 to wait for the next probe request information block to proceed to flow 308 of fig. 3.
Otherwise, if the processing circuit 125 determines that the frame and column configuration of the current probe request frame is the same as the frame and column configuration corresponding to one or more data groups established by the grouping module 240, the dynamic advertisee detecting circuit 120 proceeds to the process 408.
For example, it is assumed that the target probe request information frame is the probe request information frame PRF _ a, and the probe request information frame PRF _ a is the first probe request information frame received by the radio receiver circuit 121 in the specific time period of this time. In other words, the grouping module 240 does not establish any data group before the control processing circuit 125 performs the process 308 on the probe request information frame PRF _ a.
In this case, when the grouping module 240 controls the processing circuit 125 to perform the process 402 on the probe request frame PRF _ a, the processing circuit 125 determines that there is no data group corresponding to the same frame bit configuration at the time, so the process 404 is performed next.
In the process 404, the grouping module 240 controls the processing circuit 125 to establish a new data group, i.e., a first data group established in the specific time period, and to allocate the probe request frame PRF _ a to the first data group, and to set the frame bit configuration corresponding to the first data group to be the same as the frame bit configuration of the probe request frame PRF _ a. For convenience of description, the aforementioned first data group is hereinafter referred to as a first data group. For example, the grouping module 240 may set a first configuration identifier corresponding to the frame bit configuration of the probe request information frame PRF _ a and associate the first data group with the first configuration identifier.
The grouping module 240 then proceeds to process 406 to wait for the next probe request message block to proceed to process 308 of fig. 3.
For another example, it is assumed that the target probe request information frame is the probe request information frame PRF _ C, and the probe request information frame PRF _ C is not the first probe request information frame received by the radio receiver circuit 121 in the specific time period of this time. In other words, the grouping module 240 has established one or more data groups before the control processing circuit 125 performs the flow 308 on the probe request information frame PRF _ C.
In this case, when the grouping module 240 controls the processing circuit 125 to perform the aforementioned process 402 on the probe request frame PRF _ C, if the frame field configuration of the probe request frame PRF _ C is the same as the frame field configuration corresponding to the established one or more data groups, the dynamic advertisee detecting circuit 120 performs the process 408 on the probe request frame PRF _ C. Otherwise, if the frame bit configurations corresponding to all the data groups established by the grouping module 240 are different from the frame bit configuration of the probe request frame PRF _ C, the grouping module 240 proceeds to the process 404.
In the process 408, the calculating module 230 controls the processing circuit 125 to calculate the difference between the receiving time difference and the sequence control value between the probe request frame PRF _ C and the latest probe request frame in a target data group corresponding to the same frame bit configuration, and the grouping module 240 performs the relevant condition determination according to the calculation result of the calculating module 230.
If the probe request information frame PRF _ C satisfies the first condition and the second condition, the grouping module 240 performs a process 410 on the probe request information frame PRF _ C. The first condition indicates that the difference between the receiving time of the probe request information frame PRF _ C and the latest probe request information frame in the target data group is smaller than a first predetermined value, and the second condition indicates that the sequence control value between the probe request information frame PRF _ C and the latest probe request information frame in the target data group is smaller than a second predetermined value.
In the process 410, the grouping module 240 controls the processing circuit 125 to allocate the probe request information frame PRF _ C to the current target data group.
For example, assuming that the target data group is the first data group (i.e., the data group corresponding to the probe request frame PRF _ a), and the probe request frame PRF _ C satisfies the first condition and the second condition, the processing circuit 125 allocates the probe request frame PRF _ C to the current first data group.
If the probe request frame PRF _ C does not satisfy at least one of the first and second conditions, and there are no other data groups corresponding to the same frame bit allocation, the grouping module 240 performs a process 404 on the probe request frame PRF _ C.
In the process 404, the grouping module 240 controls the processing circuit 125 to establish a new data group and to allocate the probe request information frame PRF _ C to the new data group. For example, the grouping module 240 may control the processing circuit 125 to establish a second data group different from the first data group, and allocate the probe request information frame PRF _ C to the second data group, and set the information frame column bit configuration corresponding to the second data group to be the same as the information frame column bit configuration of the probe request information frame PRF _ C. For example, the grouping module 240 may set a second configuration identifier corresponding to the frame column bit configuration of the probe request information frame PRF _ C and associate the second data group with the second configuration identifier.
As can be seen from the foregoing description, the frame bit configuration corresponding to the second data group may be the same as the frame bit configuration corresponding to the first data group, or may be different from the frame bit configuration corresponding to the first data group.
If the probe request frame PRF _ C does not satisfy at least one of the first and second conditions, but there are other data groups corresponding to the same frame bit allocation, the flow 412 is performed by the audience dynamic detection circuit 120 for the probe request frame PRF _ C.
In the process 412, the calculation module 230 controls the processing circuit 125 to calculate a receiving time difference between the probe request frame PRF _ C and the latest probe request frame in the next data group corresponding to the same frame bit configuration, and to calculate a sequence control value difference between the probe request frame PRF _ C and the latest probe request frame in the next data group corresponding to the same frame bit configuration.
Then, the grouping module 240 compares the receiving time difference with the first predetermined value and compares the sequence control value difference with the second predetermined value to determine whether to allocate the probe request frame PRF _ C to the next data group corresponding to the same frame bit allocation.
For convenience, it is assumed that the next data group corresponding to the same frame bit allocation in the process 412 is a third data group different from the first data group and the second data group. In the same manner as the above determination, if the probe request frame PRF _ C satisfies the first condition and the second condition, the grouping module 240 controls the processing circuit 125 to allocate the probe request frame PRF _ C to the current third data group. If the probe request frame PRF _ C does not satisfy at least one of the first and second conditions, the grouping module 240 determines whether to re-establish additional new data groups or to calculate a difference between the receiving time difference and the sequence control value between the probe request frame PRF _ C and the latest probe request frame in another next data group (e.g., a fourth data group) corresponding to the same frame bit configuration, depending on whether there are other data groups corresponding to the same frame bit configuration at the time.
As can be seen from the above description, after the grouping module 240 controls the processing circuit 125 to perform the grouping operation of the process 308 on the multiple probe request frames PRF _ a to PRF _ Q received by the wireless receiving circuit 121, multiple data groups corresponding to different frame bit configurations are generated, and it can be ensured that the frame bit configurations of all the probe request frames in the same data group are the same, the receiving time difference between the latest two probe request frames in the same data group is smaller than the first predetermined value, and the sequence control value difference between the latest two probe request frames in the same data group is smaller than the second predetermined value.
It will also be understood from the foregoing description that two different data groups may correspond to different frame bit arrangements, or may correspond to the same frame bit arrangement.
Although the advertisement audience dynamic detection circuit 120 cannot directly identify whether the source devices of different probe request frames are the same wireless communication device according to the content of the probe request frames, the method of grouping the probe request frames according to the receiving time, the frame slot allocation, and the sequence control value of the probe request frames in the aforementioned process 308 can effectively identify the true source device of each probe request frame, so that the situation of determining the same source device as a plurality of different source devices by mistake and repeating the calculation can be avoided.
Therefore, the method for estimating the number of audience outdoor advertisements passing through a specific area in a specific time period according to the total number of source devices of the probe request message frame can obtain an estimation result very close to the actual number.
As mentioned above, the determining module 220 only needs to check the frame field configuration of the target probe request frame in the aforementioned process 306, and does not need to read the content recorded in the aforementioned predetermined tag parameter field, so that the required computation amount can be minimized. Therefore, the aforementioned advertisement audience dynamic detection circuit 120 is applicable even in an environment with a very large number of wireless communication devices.
Moreover, the hardware cost of the wireless receiving circuit 121 employed by the advertisement audience dynamic detection circuit 120 is much lower than that of a conventional camera, and the detection range and detection angle are wider than those of a camera, so that the wireless receiving circuit can be applied to various outdoor advertisement applications in a large scale.
In addition, since the dynamic advertisee detecting circuit 120 can flexibly set the starting time and the ending time of each specific time interval for detecting the number of the outdoor advertisees, the dynamic advertisee detecting circuit 120 can accurately estimate the number of the advertisees passing through the outdoor advertisee delivery area in a short time (e.g. 10 minutes, 5 minutes, or even 1 minute) by setting the length of the specific time interval to a shorter parameter. Therefore, the estimation fineness which is difficult to achieve by the traditional advertisement audience quantity measuring technology can be achieved, and the method is helpful for subsequent advertisement benefit evaluation, the people flow periodic analysis of a specific area and the behavior analysis of offline consumers.
Please note that the execution sequence of the flows in fig. 3 and fig. 4 is only an exemplary embodiment and is not limited to the practical implementation of the present invention. For example, the sequence of the processes 304 and 306 in fig. 3 may be reversed or performed simultaneously. In addition, the sequence of the processes 310 and 312 in fig. 3 may be reversed or performed simultaneously.
In some embodiments, flow 312 may also be omitted.
In some embodiments, the audience dynamics detection circuit 120 may be integrated with a remote statistics server 150. In this case, the communication circuit 123 may be omitted.
In some embodiments, the advertisement presentation device 110 may be implemented by an electronic device that is not capable of data or power transmission with the audience dynamic detection circuit 120, or may even be implemented by a balloon, a large inflatable model, a flat poster, or other object that presents a static advertisement frame. In this case, the transmission interface 124 may be omitted.
Certain terms are used throughout the description to refer to particular elements, and those skilled in the art may refer to the same elements by different names. The present specification does not intend to distinguish between components that differ in name but not function. In the description, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. Also, the term "coupled" is intended to include any direct or indirect connection. Therefore, if a first element is coupled to a second element, the first element can be directly connected to the second element through an electrical connection or a signal connection such as wireless transmission or optical transmission, or indirectly connected to the second element through another element or a connection means.
The description of "and/or" as used in this specification is inclusive of any combination of one or more of the items listed. In addition, any reference to singular is intended to include the plural unless the specification specifically states otherwise.
The above are only preferred embodiments of the present invention, and all equivalent changes and modifications made by the claims of the present invention should be covered by the present invention.
Claims (9)
1. An audience dynamic detection circuit (120) for estimating the number of outdoor audiences who pass through a specific area in a specific time period, the audience dynamic detection circuit (120) comprising:
a wireless reception circuit (121);
a storage device (122) configured to store a program (126); and
a processing circuit (125), coupled to the wireless receiving circuit (121) and the storage device (122), configured to execute the program (126) to:
receiving, by the radio reception circuit (121), a target probe request information frame transmitted from another radio communication device (130a to 130 k);
recording the receiving time of the target detection request information frame;
checking the information frame column position configuration of the target detection request information frame;
allocating the target probe request frame to a corresponding data group according to the receiving time and frame bit configuration of the target probe request frame and the sequence control value in the header of the target probe request frame, and ensuring that the frame bit configurations of all the probe request frames in the same data group are the same, the receiving time difference between the latest two probe request frames in the same data group is smaller than a first predetermined value, and the sequence control value difference between the latest two probe request frames in the same data group is smaller than a second predetermined value; and
calculating the number estimation value of the audience of the outdoor advertisement passing through the specific area in the specific time period according to the total number of the established data groups,
an operation in which the processing circuit (125) allocates the target probe request message frame to a corresponding data group, comprising:
calculating the difference between the receiving time difference and the sequence control value between the target probe request information frame and the latest probe request information frame in the target data group corresponding to the same information frame column position configuration;
assigning the target probe request information frame to the target data group if the target probe request information frame satisfies a first condition and a second condition, wherein the first condition is that a difference in reception time between the target probe request information frame and a latest probe request information frame in the target data group is smaller than the first predetermined value, and the second condition is that a sequence control value between the target probe request information frame and the latest probe request information frame in the target data group is smaller than the second predetermined value;
if the target probe request information frame does not satisfy at least one of the first condition and the second condition and other data groups corresponding to the same information frame column bit configuration do not exist, establishing a new data group and distributing the target probe request information frame to the new data group; and
if the target probe request information frame does not satisfy at least one of the first condition and the second condition, but there are other data groups corresponding to the same frame bit configuration, calculating a receiving time difference between the target probe request information frame and a latest probe request information frame in a next data group corresponding to the same frame bit configuration, and comparing the receiving time difference with the first predetermined value, and calculating a sequence control value difference between the target probe request information frame and the latest probe request information frame in the next data group, and comparing the sequence control value difference with the second predetermined value, so as to determine whether to allocate the target probe request information frame to the next data group according to the comparison result.
2. The circuit (120) for detecting audience dynamics as recited in claim 1, wherein the frame field configuration of the target probe request frame is selected from a group consisting of one or more predetermined tag parameter fields in the target probe request frame:
a field number of the one or more predetermined tag parameter fields;
an arrangement of the one or more predetermined tag parameter fields;
a field length sum of the one or more predetermined tag parameter fields; and
individual field lengths of the one or more predetermined tag parameter fields.
3. A method for detecting audience size of outdoor advertisements, the method comprising:
receiving, by a radio receiving circuit (121), a target probe request information frame transmitted from another radio communication device (130a to 130 k);
recording the receiving time of the target detection request information frame;
checking the information frame column position configuration of the target detection request information frame;
allocating the target probe request frame to a corresponding data group according to the receiving time and frame bit configuration of the target probe request frame and the sequence control value in the header of the target probe request frame, and ensuring that the frame bit configurations of all the probe request frames in the same data group are the same, the receiving time difference between the latest two probe request frames in the same data group is smaller than a first predetermined value, and the sequence control value difference between the latest two probe request frames in the same data group is smaller than a second predetermined value; and
calculating the number estimation value of the audience of the outdoor advertisement passing through the specific area in the specific time period according to the total number of the established data groups,
wherein the act of assigning the target probe request message frame to a corresponding data group comprises:
calculating the difference between the receiving time difference and the sequence control value between the target probe request information frame and the latest probe request information frame in the target data group corresponding to the same information frame column position configuration;
assigning the target probe request information frame to the target data group if the target probe request information frame satisfies a first condition and a second condition, wherein the first condition is that a difference in reception time between the target probe request information frame and a latest probe request information frame in the target data group is smaller than the first predetermined value, and the second condition is that a sequence control value between the target probe request information frame and the latest probe request information frame in the target data group is smaller than the second predetermined value;
if the target probe request frame does not satisfy at least one of the first condition and the second condition and there is no other data group corresponding to the same frame bit configuration, establishing a new data group and allocating the target probe request frame to the new data group; and
if the target probe request information frame does not satisfy at least one of the first condition and the second condition, but there are other data groups corresponding to the same frame bit configuration, calculating a receiving time difference between the target probe request information frame and a latest probe request information frame in a next data group corresponding to the same frame bit configuration, and comparing the receiving time difference with the first predetermined value, and calculating a sequence control value difference between the target probe request information frame and the latest probe request information frame in the next data group, and comparing the sequence control value difference with the second predetermined value, so as to determine whether to allocate the target probe request information frame to the next data group according to the comparison result.
4. The method for detecting the audience size of outdoor advertisements as claimed in claim 3, wherein the method further comprises:
calculating a staying time length estimation value of the target source device corresponding to the target data group in the specific area according to a receiving time difference between the latest and the oldest two probe request information frames in the target data group.
5. The method for detecting the audience size of outdoor advertisements as claimed in claim 4, wherein the method further comprises:
the estimated number of viewers in the open air and the estimated length of stay are communicated to a remote data statistics server (150) using a communications circuit (123).
6. The method as claimed in claim 3, wherein the time length of the specific time interval is less than one minute, and the specific area is a wireless signal receiving range of the wireless receiving circuit (121).
7. The method as claimed in claim 3, wherein the frame slot configuration of the target probe request frame is selected from a group consisting of one or more predetermined tag parameter fields of the target probe request frame:
a field number of the one or more predetermined tag parameter fields;
an arrangement of the one or more predetermined tag parameter fields;
a field length sum of the one or more predetermined tag parameter fields; and
individual field lengths of the one or more predetermined tag parameter fields.
8. The method as claimed in claim 7, wherein the one or more predetermined tag parameter fields comprise one or more vendor-defined fields in the targeted probe request message box.
9. The method as claimed in claim 8, wherein the one or more predetermined tag parameter fields further comprise at least one of a support rate field, an extended support rate field, a hopping parameter set field, and a high throughput capability field of the target probe request frame.
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