JP6637328B2 - Server device, improperly parked vehicle estimation system, program - Google Patents

Description

  The present invention relates to a server device, an inappropriately parked vehicle estimation system, and a program that enable estimation of a vehicle that inappropriately uses a parking lot.

  Patent Document 1 discloses a marketing system that analyzes a user's preference and the like from a user's action history. The marketing system of Patent Document 1 includes a user terminal (for example, a mobile terminal), a Wi-Fi sensor, and a server. The server includes a collection unit, a calculation unit, an estimation unit, and an analysis unit.

  When performing short-range wireless communication with the user terminal via radio waves, the Wi-Fi sensor transmits communication information including the terminal ID of the user terminal and the device ID of the Wi-Fi sensor to the server via the network.

  The collection unit of the server collects a change over time of the radio wave intensity in the terminal ID for each device ID. The calculation unit of the server calculates the flow line that the user has moved in the area of the Wi-Fi sensor of the predetermined device ID and the stay time in a part of the flow line. The estimating unit of the server estimates, for each device ID, behavior information performed by the user in the area of the Wi-Fi sensor having the predetermined device ID. The analysis unit of the server analyzes the user attribute information including the user preference based on the estimated user behavior information for each device ID and installation attribute information set in advance for each device ID.

Japanese Patent No. 5713249

  By the way, parking lots attached to stores are often operated free of charge and gateless. Such a parking lot is provided, for example, for the purpose of improving the image of the store or the company that operates the store, advertising, and the like.

  In the case of such a parking lot, there are many users who try to use only the parking lot without using the store. In the case of malicious users, the parking lot may be used daily for commuting to work, or the parking lot may be used as a garage every night.

  In the marketing system of Patent Literature 1, it was not possible to estimate an inappropriate parked vehicle in a parking lot with a store.

  Therefore, an object of the present invention is to provide a server device capable of estimating an improperly parked vehicle in a parking lot adjacent to a store.

  The server device of the present invention includes a survey target terminal specifying unit and a candidate list generating unit.

  The investigation target terminal identification unit is configured to search for terminal IDs that exist within a predetermined time frame of the in-parking terminal list and that do not exist within a time frame corresponding to the predetermined time frame of the in-store terminal list. It is specified as the terminal ID of the terminal.

  The candidate list generation unit generates, as a candidate list, a list of the vehicle numbers detected in a predetermined time range based on the detection time corresponding to the terminal ID of the investigation target terminal and the terminal ID of the investigation target terminal.

  ADVANTAGE OF THE INVENTION According to the server apparatus of this invention, an improper parked vehicle in a parking lot with a store can be estimated.

FIG. 1 is a diagram illustrating a configuration of an inappropriate parking vehicle estimation system according to a first embodiment. The top view of the parking lot 1F which shows the example of arrangement | positioning of the access point in a parking lot. The top view of the parking lot 2F which shows the example of arrangement | positioning of the access point in a parking lot. FIG. 2 is a block diagram illustrating a configuration of a server device according to the first embodiment. FIG. 4 is a sequence diagram illustrating an operation of the inappropriately parked vehicle estimation system according to the first embodiment. The figure which illustrates a car number list. The figure which illustrates the terminal list in a parking lot. The figure which illustrates the in-store terminal list. 5 is a flowchart illustrating the operation of the server device according to the first embodiment. The figure explaining the identification of the investigation object terminal by illustration. The figure explaining generation of a candidate list by illustration. The figure which illustrates a time range list. The figure explaining the vehicle number estimation of the vehicle parked inappropriately by example.

  Hereinafter, embodiments of the present invention will be described in detail. Note that components having the same functions are assigned the same reference numerals, and redundant description is omitted.

  Hereinafter, the configuration of the improperly parked vehicle estimation system according to the first embodiment will be described with reference to FIG. FIG. 1 is a diagram illustrating a configuration of an inappropriate parking vehicle estimation system 1 according to the present embodiment.

  As shown in FIG. 1, the improperly parked vehicle estimating system 1 of the present embodiment includes an entrance car number reader 20 installed at an entrance of a parking lot 60 attached to a store 50 and an entrance of the parking lot 60. , A parking lot access number 30 installed in the parking lot 60, an in-store access point 35 installed in the store 50, and a server device 40.

  Only one of the entrance car number reader 20 and the entrance car number reader 25 may be provided, and the other may be omitted. The reason will be described later. The entrance car number reader 20 and the entrance car number reader 25 are, for example, cameras with a car number recognition function. Note that the vehicle number reader may be used in place of or in combination with a device having a function of reading the vehicle-mounted device management number assigned to the ETC vehicle-mounted device. The in-parking access point 30 and the in-store access point 35 are both wireless LAN (for example, Wi-Fi (registered trademark)) access points. The access points 30 in the parking lot are provided at predetermined intervals in the parking lot 60. In the case where the access points 30 in the individual parking lots are distinguished from each other, they are distinguished by adding a lowercase alphabetic character at the end of the code, such as 30a, 30b,. The in-store access points 35 may be provided, for example, only at the entrance and exit of the store 50, or a plurality of in-store access points 35 may be provided so as to cover many areas in the store 50. The identifiers (IDs) of these access points are called APIDs.

  It is preferable that the server device 40 be installed in a state where the administrator of the parking lot 60 or the administrator of the store 50 can operate and browse. The entrance car number reader 20, the entrance car number reader 25, the access point 30 in the parking lot, and the access point 35 in the store are in a state where data can be transmitted to the server device 40 via the network 90. I do.

  The parking lot 60 may be a flat parking lot (outdoor or indoor), a self-propelled multi-story parking lot, or a mechanical multi-story parking lot. In the following description, a self-propelled multi-story parking lot will be described as an example.

  In the following description, when the user 80 drives the car 70 and comes to the store 50, parking the car 70 in the parking lot 60 is referred to as “appropriate use” of the parking lot 60. On the other hand, when the user 80 drives the car 70 and visits the parking lot 60 without intention to visit the store 50, it is determined that the parking lot 60 is parked in the parking lot 60. ". In any case, it is assumed that the user 80 has the portable terminal 10.

  The mobile terminal 10 needs to be a terminal that can communicate with the access point. Among the information transmitted by the mobile terminal 10 to the access point, information (for example, an IP address) that can function as an identifier of the mobile terminal 10 is hereinafter referred to as a terminal ID. In the case where the individual mobile terminals 10 are identified, they are distinguished by adding a lowercase alphabetic character at the end of the code, such as 10a, 10b,.

  Hereinafter, an example of the arrangement of the access points 30 in the parking lot will be described with reference to FIGS. 2 and 3 are plan views of the parking lot 60 showing an example of the arrangement of the access points 30 in the parking lot. FIG. 2 is a plan view of the parking lot 60 on the first floor, and FIG. It is a top view.

  As shown in FIG. 2, for example, an entrance car number reader 20 is installed near the entrance of the first floor of a self-propelled multi-story parking lot, an entrance car number reader 25 is installed near the entrance, and The access points 30a, 30b, 30c, 30d, 30e in the parking lot can be arranged at intervals.

  The radio wave transmission / reception area of each access point is represented by an area within a broken line. As shown in FIG. 2, the access points 30a, 30b, 30c, 30d, and 30d in the parking lot are so arranged that the areas indicated by broken lines do not overlap with each other as much as possible and most of the passenger compartment is included in any of the areas. The arrangement of 30e is determined. Of course, the access points 30a, 30b, 30c, 30d, and 30e in the parking lot are desirably installed buried in pillars, ceilings, walls, or road surfaces so as not to hinder the traffic of vehicles.

  As shown in FIG. 3, an access point is installed on the second floor of the parking lot 60 in the same manner as on the first floor. The access points on the second floor of the parking lot 60 are referred to as access points 30f, 30g, 30h, 30i, 30j, and 30k in the parking lot. When the parking lot 60 has a floor or an RF (rooftop floor) of 3F or more, it may be installed in the same manner as 2F.

  As shown in FIG. 3, on floors other than the ground floor, an entrance car number reader 20 and an entrance car number reader 25 may be provided on an entrance / exit slope. However, this configuration is not essential.

  2 and 3 illustrate a self-propelled multi-story parking garage, but in the case of a flat parking garage (outdoors, indoors), an arrangement such as 1F in FIG. 2 may be used. In the case of a mechanical multi-story parking garage, an entrance (exit) entrance car number reader 20 (25) may be installed near the entrance (exit) entrance as described above. The access point 30 in the parking lot may be installed in a waiting room of the user, a walking path of the user, or the like.

  Hereinafter, the configuration of the server device 40 of the present embodiment will be described with reference to FIG. FIG. 4 is a block diagram illustrating a configuration of the server device 40 according to the present embodiment.

  As shown in FIG. 4, the server device 40 of the present embodiment includes a data receiving unit 401, a car number list updating unit 402, a parking lot terminal list updating unit 403, a store terminal list updating unit 404, a car number List storage unit 4021, in-parking terminal list storage unit 4031, in-store terminal list storage unit 4041, investigation target terminal identification unit 405, candidate list generation unit 406, time range list storage unit 4061, candidate list storage The configuration includes a unit 4062 and an inappropriately parked vehicle estimation unit 407.

  Hereinafter, the data transmission / reception operation of the improperly parked vehicle estimation system 1 of the present embodiment will be described with reference to FIG. FIG. 5 is a sequence diagram illustrating the operation of the inappropriately parked vehicle estimation system 1 according to the present embodiment. Note that in the data transmission / reception operation described below, each transmission / reception operation may occur independently of the occurrence of other transmission / reception operations. Therefore, individual transmission / reception operations are not necessarily performed in the order shown in FIG. 5, and the display order in FIG. 5 is merely an example.

<Detection and transmission of car number of the car 70 to enter, generation and update of car number list>
The following operation is executed at the timing when the car 70 enters the parking lot 60. First, the entrance car number reader 20 detects the car number of the car 70 to enter. The entrance car number reader 20 associates the detected car number with the detection time and transmits the car number to the server device 40 (S201). The data receiving unit 401 of the server device 40 receives the vehicle number and the detection time from the entrance vehicle number reader 20 (S401a). The vehicle number list updating unit 402 of the server device 40 generates or updates a vehicle number list, which is a list of the received vehicle numbers and detection times (entrance times) (S402a). The generated and updated vehicle number list is stored in the vehicle number list storage unit 4021. FIG. 6 shows an example of the car number list.

<Detection and transmission of terminal ID in parking lot, generation / update of terminal list in parking lot>
The following operation is executed when any of the parking lot access points 30 receives a radio wave from the mobile terminal 10. The mobile terminal 10 periodically transmits radio waves including the terminal ID at predetermined time intervals (S101). The access point 30 in the parking lot receives a radio wave including the terminal ID from the mobile terminal 10 (S301). The access point 30 in the parking lot transmits the detected terminal ID, the detection time, and the APID that is the identifier of the terminal to the server device 40 in association with each other (S302). The data receiving unit 401 of the server device 40 receives the terminal ID, the detection time, and the APID from the access point 30 in the parking lot (S401b). The in-parking terminal list updating unit 403 of the server device 40 generates or updates the in-parking terminal list, which is a list of the received terminal ID, detection time, and APID (S403). The generated and updated in-parking terminal list is stored in the in-parking terminal list storage unit 4031. FIG. 7 shows an example of the terminal list in the parking lot. In the parking lot 60, a plurality of APIDs may be associated with one terminal ID because a plurality of access points are provided. For example, in the example of FIG. 7, the terminal ID of the mobile terminal 10s is associated with the APID of the access point 30d in the parking lot. It is likely that it was present. However, the mobile terminal 10s must have passed near the access points 30e and 30c in the parking lot near the entrance before approaching the access point 30d in the parking lot. Also, for example, when the user 80 carrying the mobile terminal 10s gets off the car 70 and goes to the elevator room, it must have passed near the access point 30a in the parking lot near the elevator room. That is, the terminal ID of the mobile terminal 10s may be simultaneously associated with not only the access point 30d in the parking lot, but also the APID of the access points 30e, 30c, 30a in the parking lot.

  In such a case, among the APIDs linked to the same terminal ID, the APID at the earliest time is important. It is not easy to predict the traveling route of the car 70 and the user 80 after entering the parking lot, because various patterns are conceivable. However, if the APID is the earliest time, it is necessary to reach the access point. This is because the route is less likely to be complicated and is suitable for determining a time range described later.

  In the above-described processing (S101 to S403), the terminal list in the parking lot is obtained as time-series data in which the APID and the terminal ID are linked, and the time-series data is used to correspond to a predetermined terminal ID. In some cases, the parking position can be roughly estimated.

<Detection and transmission of terminal ID in store, generation / update of terminal list in store>
The following operation is executed at the timing when any of the in-store access points 35 receives the radio wave from the mobile terminal 10. The mobile terminal 10 periodically transmits radio waves including the terminal ID at predetermined time intervals (S101). The in-store access point 35 receives a radio wave including the terminal ID from the mobile terminal 10 (S351). The in-store access point 35 associates the detected terminal ID, the detected time, and the APID that is the identifier of the terminal with each other, and transmits the terminal ID to the server device 40 (S352). The data receiving unit 401 of the server device 40 receives the terminal ID, the detection time, and the APID from the in-store access point 35 (S401c). The in-store terminal list update unit 404 of the server device 40 generates or updates the in-store terminal list, which is a list of the received terminal ID, detection time, and APID (S404). The in-store terminal list generated and updated is stored in the in-store terminal list storage unit 4041. FIG. 8 shows an example of the in-store terminal list.

<Detection and transmission of the car number of the participating car 70, update of the car number list>
The following operation is executed at the timing when the car 70 enters the parking lot 60. First, the entry port number reader 25 detects the number of the car 70 to enter. The entrance car number reader 25 associates the detected car number with the detection time and transmits it to the server device 40 (S251). The data receiving unit 401 of the server device 40 receives the vehicle number and the detection time from the entrance vehicle number reader 25 (S401d). The vehicle number list updating unit 402 of the server device 40 generates or updates a vehicle number list that is a list of the received vehicle numbers and detection times (entry times) (S402b). The generated and updated vehicle number list is stored in the vehicle number list storage unit 4021.

  Hereinafter, the improperly parked vehicle estimating operation of the server device 40 of the present embodiment will be described with reference to FIG. FIG. 9 is a flowchart illustrating the operation of the server device 40 according to the present embodiment.

  As illustrated in FIG. 9, the investigation target terminal specifying unit 405 of the server device 40 is a terminal ID that exists within a predetermined time frame of the in-parking terminal list, and corresponds to a predetermined time frame of the in-store terminal list. The terminal ID that does not exist within the time frame is specified as the terminal ID of the terminal to be investigated (S405). Here, the “predetermined time frame” is a time frame that can be arbitrarily set by the administrator of the present system. Assuming that the time length of the “predetermined time frame” is, for example, 24 hours, the survey target terminal specifying unit 405 determines that the parking lot is located within a certain 24-hour time frame (in this case, a time frame is usually set for each day). If the terminal ID detected in is not detected in the store, for example, within the same time frame (same date), the mobile terminal 10 corresponding to the terminal ID is specified as the survey target terminal (S405).

Hereinafter, step S405 will be described using a specific example of FIG. FIG. 10 is a diagram illustrating, by way of example, the identification of the investigation target terminal (step S405).
In the example of FIG. 10, the terminal IDs of the portable terminals 10b, 10q, 10s, 10k, and 10a are included in a predetermined time frame of the terminal list in the parking lot (here, the time frame is 9:15 to 9:30). It has been assumed that On the other hand, in the corresponding time frame of the in-store terminal list (here, the time frame is 9:20 to 9:35 shifted from the parking lot time frame by 5 minutes), the mobile terminals 10q, 10s, 10w, 10u, It is assumed that the terminal ID of 10a is included. In this example, since the mobile terminals 10q, 10s, and 10a have been confirmed both in the parking lot and in the store (within a predetermined time frame and a corresponding time frame), the owners of these terminals are in the parking lot. It is expected that the store 60 is used together with the store 60, and it is highly likely that the store corresponds to “appropriate use”. On the other hand, the mobile terminals 10b and 10k are confirmed in the parking lot (within a predetermined time frame), but are not confirmed in the store (within a corresponding time frame). That is, the owners of these terminals may not use the store 50 while using the parking lot 60, and may fall under “improper use”.

  That is, the investigation target terminal identification unit 405 of the server device 40 first identifies the ID of the terminal of the user who may fall under such “inappropriate use” as the investigation target terminal (S405).

  If the terminal ID of the above-mentioned investigation target terminal is registered in the server device 40 and an alert is presented from the server device 40 when the terminal ID is received via the access point 30 in the parking lot, the parking lot ( Stores) are more convenient.

  The administrator of the parking lot (store) refers to the terminal list in the parking lot, confirms the appearance pattern of the terminal ID of the terminal to be surveyed, and determines the behavior pattern of a person who may be an inappropriate user. It can be predicted, and the convenience of the manager of the parking lot (store) increases.

  Next, the candidate list generation unit 406 generates a list of the vehicle numbers detected in a predetermined time range based on the detection time corresponding to the terminal ID of the investigation target terminal and the terminal ID of the investigation target terminal as a candidate list. (S406). The generated candidate list is stored in the candidate list storage unit 4062. Here, the "predetermined time range" is a concept different from the above-mentioned "predetermined time frame", and thus care must be taken. The “predetermined time range” is a time range necessary for back-calculating and estimating the time of passing through the entrance (exit) of the parking lot 60 from the detection time at a certain access point. The length of the “predetermined time range” is determined based on the average arrival time from the entrance (exit) of the parking lot 60 to the access point 30 in the predetermined parking lot. For example, if the time taken from the entrance (entrance) of the parking lot 60 to the predetermined parking lot access point 30 is about 5 minutes on average, the “predetermined time range” corresponding to this parking lot access point 30 Can be set to 5 minutes.

  Hereinafter, step S406 will be described using a specific example of FIG. FIG. 11 is a diagram illustrating the generation of the candidate list (step S406) by way of example. In the example of FIG. 11, the terminal ID of the portable terminal 10k was detected at the access point 30a in the parking lot at 9:25:33. In this example, the "predetermined time range" is set from "detection time" to "time preceding five minutes before the detection time", that is, from 9:25:33 to 9:20:33.

  That is, the car 70 corresponding to the mobile terminal 10k may have passed the entrance of the parking lot 60 between 9:25:33 and 9:20:33. In the example of FIG. 11, three vehicle numbers (Hachioji number, Adachi number, Shinagawa) are detected by the entrance number reader 20 in a predetermined time range (9:25:33 to 9:20:33). Number). Any of the three vehicles may be associated with the mobile terminal 10k.

  That is, the candidate list generation unit 406 of the server device 40 generates, as a candidate list, a list including one or more vehicle numbers of vehicles that are likely to be related to the investigation target terminal (S406).

  In the above-described example, the example in which the candidate list is generated using the entry time is described. However, the candidate list can be generated using the entry time. In the above-described example, the vehicle number was detected retroactively to a predetermined time range “past” based on the detection time at the access point, but when the entry time is used, the vehicle number is detected based on the detection time at the access point. The vehicle number may be detected over a predetermined time range “future”.

  The predetermined time range can be stored in the time range list storage unit 4061 as a time range list. FIG. 12 shows an example of the time range list. As shown in FIG. 12, the “predetermined time range” is different depending on the position of the access point 30 in the parking lot.

  Next, the improperly parked vehicle estimating unit 407 refers to a plurality of candidate lists generated for each predetermined time frame in the predetermined investigation target terminal, and selects a vehicle corresponding to the terminal ID of the predetermined investigation target terminal one-to-one. The number is estimated (S407).

  Hereinafter, step S407 will be described using a specific example of FIG. FIG. 13 is a diagram illustrating, by way of example, the estimation of the vehicle number of an improperly parked vehicle (step S407). In the example of FIG. 13, the candidate list (including the Hachioji number, the Adachi number, and the Shinagawa number) generated on February 15 for the mobile terminal 10 k as the survey target terminal and the candidate generated on February 16 for the same terminal are displayed. A list (including Adachi number, Tama number, Nerima number) is illustrated. In this example, the Adachi number, which is a vehicle number commonly included in each candidate list, is extracted as a terminal related to the mobile terminal 10k, which is a terminal to be investigated. In the example of FIG. 13, the estimation of the vehicle number is successful only with the two candidate lists, but the operation in step S407 is not limited to this. The operation of step S407 is continued until the number of vehicles commonly included in all the candidate lists is narrowed down to one.

  That is, the inappropriately parked vehicle estimating unit 407 of the server device 40 refers to at least two or more of the plurality of candidate lists generated in the predetermined investigation target terminal, and if the vehicle number commonly included in this candidate list is one, When there is only one, the vehicle number is estimated to be that of the vehicle of the user of the survey target terminal.

  As described above, according to the inappropriately parked vehicle estimation system 1 of the present embodiment, it is possible to estimate an inappropriately parked vehicle in a parking lot adjacent to a store. It becomes possible to paste a guide document and the like.

<Supplementary note>
The device of the present invention includes, for example, an input unit to which a keyboard or the like can be connected, an output unit to which a liquid crystal display or the like can be connected, and a communication device (for example, a communication cable) that can communicate outside the hardware entity as a single hardware entity. , A communication unit, a CPU (which may include a Central Processing Unit, a cache memory and a register), a RAM or ROM as a memory, an external storage device as a hard disk, and an input unit, an output unit, and a communication unit thereof. , A CPU, a RAM, a ROM, and a bus connected so that data can be exchanged between the external storage devices. If necessary, the hardware entity may be provided with a device (drive) that can read and write a recording medium such as a CD-ROM. A physical entity provided with such hardware resources includes a general-purpose computer.

  The external storage device of the hardware entity stores a program necessary for realizing the above-described functions, data necessary for processing the program, and the like. It may be stored in a ROM that is a dedicated storage device). Data obtained by the processing of these programs is appropriately stored in a RAM, an external storage device, or the like.

  In the hardware entity, each program stored in the external storage device (or ROM or the like) and data necessary for processing of each program are read into the memory as needed, and interpreted and executed / processed by the CPU as appropriate. . As a result, the CPU realizes predetermined functions (the above-described components, such as components, means, etc.).

  The present invention is not limited to the embodiments described above, and can be appropriately modified without departing from the spirit of the present invention. Further, the processing described in the above embodiment may be executed not only in chronological order according to the order of description, but also in parallel or individually according to the processing capability of the apparatus that executes the processing or as necessary. .

  As described above, when the processing function of the hardware entity (the device of the present invention) described in the above embodiment is implemented by a computer, the processing content of the function that the hardware entity should have is described by a program. By executing this program on a computer, the processing functions of the hardware entity are realized on the computer.

  A program describing this processing content can be recorded on a computer-readable recording medium. As a computer-readable recording medium, for example, any recording medium such as a magnetic recording device, an optical disk, a magneto-optical recording medium, and a semiconductor memory may be used. Specifically, for example, a hard disk device, a flexible disk, a magnetic tape, or the like is used as a magnetic recording device, and a DVD (Digital Versatile Disc), a DVD-RAM (Random Access Memory), or a CD-ROM (Compact Disc Read Only) is used as an optical disk. Memory), CD-R (Recordable) / RW (ReWritable), etc., magneto-optical recording media, MO (Magneto-Optical disc), semiconductor memory, EEP-ROM (Electronically Erasable and Programmable-Read Only Memory), etc. Can be used.

  The distribution of the program is performed by, for example, selling, transferring, lending, or the like, a portable recording medium such as a DVD or a CD-ROM on which the program is recorded. Further, the program may be stored in a storage device of a server computer, and the program may be distributed by transferring the program from the server computer to another computer via a network.

  A computer that executes such a program first stores, for example, a program recorded on a portable recording medium or a program transferred from a server computer in its own storage device. Then, when executing the processing, the computer reads the program stored in its own recording medium and executes the processing according to the read program. As another execution form of the program, the computer may directly read the program from the portable recording medium and execute processing according to the program, and further, the program may be transferred from the server computer to the computer. Each time, the processing according to the received program may be sequentially executed. A configuration in which a program is not transferred from a server computer to this computer, but the above-described processing is executed by a so-called ASP (Application Service Provider) type service that realizes a processing function only by an execution instruction and a result acquisition thereof. It may be. It should be noted that the program in the present embodiment includes information used for processing by the computer and which is similar to the program (data that is not a direct command to the computer but has characteristics that define the processing of the computer).

  Further, in this embodiment, a hardware entity is configured by executing a predetermined program on a computer. However, at least a part of the processing contents may be realized by hardware.

Claims (7)

A list of the car numbers of the cars detected by the car number reader installed at the entrance of the parking lot attached to the store or the entrance and the detection time is referred to as a car number list,
The terminal ID detected by the access point installed in the parking lot and a list of the detection times are referred to as a terminal list in the parking lot,
A list of terminal IDs detected by the access points installed in the store and detection times thereof is referred to as a store terminal list,
A terminal ID that exists in a predetermined time frame of the terminal list in the parking lot and that does not exist in a time frame corresponding to the predetermined time frame in the in-store terminal list is a terminal ID of the terminal to be investigated. A target device identification unit to be identified as
A candidate list generation unit that generates a list of the vehicle numbers detected in a predetermined time range based on the detection time corresponding to the terminal ID of the investigation target terminal and the terminal ID of the investigation target terminal as a candidate list,
A server device including: The server device according to claim 1, wherein
An improperly parked vehicle estimating unit that estimates a vehicle number corresponding to the terminal ID of the predetermined investigation target terminal on a one-to-one basis with reference to a plurality of candidate lists generated for each of the predetermined investigation time frames in the predetermined investigation target terminal A server device including: The server device according to claim 1 or 2,
A plurality of access points are installed in the parking lot, and an APID that is an ID of the access point that has detected the terminal ID is recorded in the terminal list in the parking lot in association with the terminal ID and the detection time. Shall be
The candidate list generation unit,
A server device that generates the candidate list by changing the predetermined time range according to the position of an access point in the parking lot. A car number reader installed at an entrance or exit of a parking lot attached to a store, an access point in the parking lot installed in the parking lot, an access point in a store installed in the store, and a server device Improperly parked vehicle estimation system including
The car number reader transmits the detected car number and the detection time thereof to the server device in association with each other,
The access point in the parking lot transmits the detected terminal ID to the server device in association with the detection time,
The in-store access point transmits the detected terminal ID to the server device in association with the detection time,
The server device,
A vehicle number list updating unit that generates or updates a vehicle number list that is a list of the vehicle numbers detected by the vehicle number reader and the detection times thereof,
A terminal list in the parking lot that generates or updates a terminal list in the parking lot, which is a list of terminal IDs detected by the access points in the parking lot and detection times thereof,
An in-store terminal list update unit that generates or updates an in-store terminal list that is a list of terminal IDs detected by the in-store access points and detection times thereof,
A terminal ID that exists in a predetermined time frame of the terminal list in the parking lot and that does not exist in a time frame corresponding to the predetermined time frame in the in-store terminal list is a terminal ID of the terminal to be investigated. A target device identification unit to be identified as
A candidate list generating unit that generates a list of the terminal numbers of the terminals under investigation and the terminal IDs of the terminals under investigation as a candidate list, the number of vehicles detected within a predetermined time range based on the detection time corresponding to the terminal ID of the terminal under investigation. Appropriate parking vehicle estimation system. The improperly parked vehicle estimation system according to claim 4,
The server device,
Inappropriately parked vehicle estimation that estimates a vehicle number corresponding to the terminal ID of the predetermined investigation target terminal on a one-to-one basis with reference to a plurality of candidate lists generated for each of the predetermined investigation time frames at the predetermined investigation target terminal Inappropriate parked vehicle estimation system including the section. It is an improperly parked vehicle estimation system according to claim 4 or 5,
The plurality of access points in the parking lot are installed, and in the terminal list in the parking lot, the APID which is the ID of the access point in the parking lot detecting the terminal ID is recorded in association with the terminal ID and the detection time. Shall be
The candidate list generation unit,
The improperly parked vehicle estimating system that generates the candidate list by changing the predetermined time range according to the position of the access point in the parking lot.   A program for causing a computer to function as the server device according to any one of claims 1 to 3.

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