JP2016062240A - Parking lot occupation/vacancy determination device, parking lot occupation/vacancy determination system, parking lot occupation/vacancy determination method, and computer program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a parking lot occupation/vacancy determination device capable of determining the occupation/vacancy of a parking lot as for a parking lot where any equipment for detecting the entry and exit of a vehicle is not arranged, a parking lot where occupation/vacancy information is managed in a stand-alone state and a parking lot where occupation/vacancy information is not disclosed to the outside.SOLUTION: A parking lot occupation/vacancy determination device 1 includes: a reception part for receiving the position information and time information of each vehicle C transmitted from a plurality of vehicles C; a storage part for storing the position of a parking lot P; a specification part for, on the basis of the position information and time information received by the reception part, specifying the traveling mode of the vehicle C at the position of the parking lot P stored by the storage part or on a road R adjacent to the parking lot P; and a determination part for determining whether or not the parking lot P is occupied on the basis of the traveling mode specified by the specification part.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a parking lot fullness judging device, a parking lot fullness judging system, a parking lot fullness judging method and a computer for judging whether or not a parking lot is full based on position information and time information collected from a vehicle. Regarding the program.

There is a parking lot management system that counts vehicles that have passed through an entrance gate machine and an entry gate machine provided in a parking lot, and manages the entry and exit of the vehicle (for example, Patent Document 1). Such a parking lot management system counts the number of entering vehicles and the number of entering vehicles that have passed through each gate device, and subtracts the total number of entering vehicles from the total number of entering vehicles to identify the number of parking lots in the parking lot. The parking management system will allow entry of vehicles if the number of parked vehicles is below the maximum number of parking spaces in the parking lot, and limit vehicle entry if the maximum number of parking spaces is reached. I have to.
In particular, the parking lot management system according to Patent Document 1 includes a detector that detects a vehicle in front of an entry gate machine. By detecting the vehicle before the vehicle passes the entry gate machine, the waiting time of the vehicle waiting to enter can be shortened, and the operating rate of the parking lot can be improved.

JP 2009-64298 A

However, in the conventional parking management system, it is necessary to provide an entrance gate machine and an entrance gate machine that counts the entrance and exit of vehicles in the parking lot, and it determines the availability of a parking lot without a gate machine. There was a problem that could not be done.
In addition, there is a problem that it is not possible to determine whether or not each parking lot is full from the outside for parking lots that manage full availability information and parking lots that do not disclose full availability information to the outside. there were.

  The present invention has been made in view of such circumstances, and the purpose of the present invention is to provide a parking lot that is not provided with a device for detecting entry and exit of a vehicle, a parking lot that manages stand-alone availability information, A parking lot availability determination device, a parking lot availability determination system, a parking lot availability determination method, and a computer program that can determine whether the parking lot is empty even for parking lots that do not disclose empty information to the outside. It is to provide.

  A parking lot fullness judging device according to an aspect of the present invention includes a receiving unit that receives position information and time information of each vehicle transmitted from a plurality of vehicles, a storage unit that stores the position of a parking lot, and the reception Based on the position information and time information received by the unit, the specifying unit for specifying the position of the parking lot stored in the storage unit or the vehicle traveling mode on the road adjacent to the parking lot, and specifying by the specifying unit And a determination unit that determines whether the parking lot is full based on the travel mode.

  A parking lot fullness determination system according to an aspect of the present invention is mounted on the parking lot fullness determination device and a vehicle, and transmits position information and time information of the vehicle to the parking lot fullness determination device. An in-vehicle device, and the reception unit of the parking lot availability determination device receives the position information and the time information transmitted from the in-vehicle device.

  A parking lot fullness determination method according to an aspect of the present invention includes a step of receiving position information and time information of each vehicle transmitted from a plurality of vehicles, and a parking lot based on the received position information and time information. A step of specifying a vehicle or a driving mode of a vehicle on a road adjacent to the parking lot, and a step of determining whether or not the parking lot is full based on the specified driving mode.

  The computer program which concerns on 1 aspect of this invention is a computer program which makes a computer determine whether a parking lot is full, Comprising: The said computer is based on the positional information and time information of each vehicle which were transmitted from the several vehicle. And determining whether or not the parking lot is full based on a specific part that specifies a position of the parking lot or a driving mode of a vehicle on a road adjacent to the parking lot, and a driving mode specified by the specifying unit. Function as a determination unit.

  According to the above-described invention, a parking lot that is not equipped with a device that detects entry and exit of a vehicle, a parking lot that manages stand-alone vacancy information, and a parking lot that does not disclose vacancy information to the outside. In addition, it is possible to provide a parking lot availability determination device, a parking lot availability determination system, a parking lot availability determination method, and a computer program that can determine whether the parking lot is full.

It is a conceptual diagram which shows one structural example of the parking lot full determination system which concerns on Embodiment 1 of this invention. It is a conceptual diagram which shows the example of 1 structure of the parking lot empty determination apparatus which concerns on Embodiment 1. FIG. It is a conceptual diagram which shows the example of 1 structure of the vehicle equipment which concerns on Embodiment 1. FIG. It is a flowchart which shows the process sequence which concerns on collection and storage of probe information. It is a conceptual diagram which shows the example of a record layout of probe information DB. It is a flowchart which shows the process sequence which concerns on specification and registration of the departure / arrival time of the vehicle C in a parking lot. It is a conceptual diagram which shows the locus | trajectory of the vehicle which arrives at the parking lot. It is a conceptual diagram which shows the record layout example of departure / arrival time DB. It is a flowchart which shows the process sequence which concerns on parking space fullness determination. It is a graph which shows the time change of arrival frequency and departure frequency. It is a conceptual diagram which shows the example of a record layout of a full DB. It is a conceptual diagram which shows the example of a display of the full condition of a parking lot. It is a flowchart which shows the process sequence which concerns on the parking lot full availability determination in Embodiment 2 of this invention. It is a conceptual diagram which shows an example of the traffic congestion which occurs when the parking lot is full. It is a conceptual diagram which shows the example of 1 structure of the parking lot full determination system which concerns on Embodiment 3 of this invention. It is a conceptual diagram which shows the example of 1 structure of the parking lot empty determination apparatus which concerns on Embodiment 3. FIG. It is a conceptual diagram which shows the example of a record layout of the empty DB in Embodiment 3. It is a conceptual diagram which shows the example of a record layout of attribute DB in Embodiment 3.

[Description of Embodiment of the Present Invention]
First, embodiments of the present invention will be listed and described. You may combine arbitrarily at least one part of embodiment described below.
A parking lot fullness judging device according to an aspect of the present invention includes:
(1) Based on a receiving unit that receives position information and time information of each vehicle transmitted from a plurality of vehicles, a storage unit that stores the position of a parking lot, and position information and time information received by the receiving unit. The parking lot is full based on the position of the parking lot stored in the storage section or a specific section for specifying the vehicle running mode on the road adjacent to the parking lot, and the driving mode specified by the specifying section. And a determination unit for determining whether or not.

In this aspect, the parking lot availability determination device receives the position information and time information of each vehicle transmitted from the vehicle at the receiving unit. That is, the parking lot fullness determination device can recognize the trajectory of the vehicle. Since the traveling mode of a vehicle traveling on a parking lot or a road adjacent to the parking lot varies depending on whether the parking lot is full, it can be estimated from the traveling mode of the vehicle whether the parking lot is full. Is possible. Therefore, the specifying unit of the parking lot fullness determination device specifies the driving mode of the vehicle on the parking lot or the road adjacent to the parking lot, and the determining unit determines whether the parking lot is full based on the specified driving mode. Determine whether or not. Note that the travel mode in this mode includes a state in which the vehicle is stopped.
The parking lot fullness judging device concerning this mode is composition which judges whether a parking lot is full based on position information and time information collected from vehicles. Therefore, it is possible to determine whether or not the parking lot is full even for a parking lot that is not provided with a device for detecting a vehicle entering or leaving the parking lot.

(2) The specifying unit arrives at the parking lot based on an arrival time specifying unit that specifies an arrival time when the vehicle has arrived at the parking lot and parked, and an arrival time specified by the arrival time specifying unit. And the structure provided with the arrival frequency specific | specification part which specifies the arrival frequency of the vehicle parked for every predetermined time slot | zone is preferable.

In this aspect, the specifying unit specifies the arrival time when the vehicle arrives at the parking lot and parks, and specifies the frequency at which the vehicle arrives at the parking lot and parks for each predetermined time zone. When the parking lot is full, it is not possible to park in the parking lot, and when the parking lot is empty, the vehicle can arrive at the parking lot and park.
The arrival frequency of the vehicle reflects the fullness of the parking lot, and the determination unit of the parking lot fullness determination device determines whether the parking lot is full based on the arrival frequency of the vehicle specified by the specifying unit. Determine whether.

(3) A departure time specifying unit for specifying a departure time from which the vehicle has left the parking lot, and a departure frequency of the vehicle leaving the parking lot based on the departure time specified by the departure time specifying unit The structure provided with the departure frequency specific part specified for every time slot | zone is preferable.

In this aspect, the specifying unit specifies the departure time at which the vehicle leaves the parking lot, and specifies the frequency at which the vehicle leaves the parking lot for each predetermined time period. If the departure frequency increases, the parking lot becomes empty.
The departure frequency of the vehicle reflects the situation where the parking lot is empty, and the determination unit of the parking lot fullness determination device determines whether the parking lot is full based on the departure frequency of the vehicle specified by the specification unit. It is determined whether or not there is.

(4) After the arrival frequency increases more than the departure frequency, the determination unit, when the arrival frequency and the departure frequency are balanced, in the time zone in which the arrival frequency and the departure frequency are balanced The structure which determines with the said parking lot being full is preferable.

  In this aspect, the determination unit of the parking lot fullness determination device, when the arrival frequency increases from the departure frequency and then the arrival frequency and the departure frequency are balanced, the parking lot in the time zone in which each frequency is balanced Is determined to be full. When the arrival frequency is higher than the departure frequency, the vehicle is vacant and the vehicle has arrived at the parking lot and is parked. Thereafter, when the arrival frequency and the departure frequency are balanced, the vehicle parked in the parking lot departs and a vacancy occurs, and another vehicle is parked in the vacancy. Therefore, in this case, the parking lot availability determination device can determine that the parking lot is full.

(5) After the arrival frequency and the departure frequency are balanced, the determination unit, when the departure frequency has increased from the arrival frequency, the parking lot after the departure frequency has increased from the arrival frequency. A configuration in which it is determined that is empty is preferable.

  In this aspect, the determination unit of the parking lot fullness determination device determines that there is an empty parking lot when the departure frequency increases more than the arrival frequency after the arrival frequency and the departure frequency are balanced. . When the arrival frequency and the departure frequency are balanced, the parking lot is full. After that, if the departure frequency increases more than the arrival frequency, the parking lot is vacant. Therefore, in this case, the parking lot fullness determination device can determine that there is a vacancy in the parking lot.

(6) The specifying unit is configured to specify the speed or travel time of the plurality of vehicles on the road adjacent to the parking lot, and the determination unit is the plurality of vehicles on the road adjacent to the parking lot. It is preferable to determine whether or not the parking lot in a predetermined time zone is full based on the speed or travel time.

  In this aspect, the specifying unit of the parking lot fullness determination device specifies the speeds or travel times of a plurality of vehicles on the road adjacent to the parking lot. According to the speed or travel time of a plurality of vehicles on the road, it becomes possible to grasp the situation where the traffic jam occurs due to waiting for the parking lot to be free. Whether the parking lot is full is determined for each time zone based on the vehicle speed or travel time.

(7) An attribute specifying unit that specifies an attribute related to full parking space when the receiving unit receives position information and time information, and a determination result determined by the determination unit for each predetermined time period. A configuration including a determination result storage unit that stores the attribute specification unit in association with the attribute specified is preferable.

In this aspect, the parking lot fullness determination device stores the determination result of fullness determined in each time zone and the attribute related to the parking lot fullness in the time zone in association with each other. Since the parking lot availability varies depending not only on the time zone but also on other attributes, it is more accurate to store the parking lot availability judgment result for each time zone and attribute. It can memorize the sky situation.
Although the use of the stored determination result is not particularly limited, for example, by extracting a determination result corresponding to a specific time zone and attribute from the stored determination result, a parking lot in the time zone and attribute It is possible to predict the fullness of the sky.

(8) It is preferable that the attribute includes a type of a day of the week, a season, or weather when the receiving unit receives position information and time information.

  In this aspect, the parking lot fullness determination device stores the determination result relating to the parking lot fullness in association with the time zone and the day type, season or weather. Accordingly, it is possible to store the full availability of the parking lot for each time period in consideration of the type of the day of the week, the season, or the weather.

A parking lot fullness judging system according to one aspect of the present invention is as follows.
(9) The parking lot fullness determination device according to any one of modes (1) to (8) and the vehicle are mounted, and the position information and time information of the vehicle are transmitted to the parking lot fullness determination device. And the receiving unit of the parking lot fullness determination device receives position information and time information transmitted from the on-vehicle device.

  In this mode, as in mode (1), it is possible to determine whether or not the parking lot is full even for a parking lot that is not provided with a device that detects a vehicle entering or leaving the parking lot. it can.

The parking lot fullness judging method concerning one mode of the present invention is as follows.
(10) Receiving the position information and time information of each vehicle transmitted from a plurality of vehicles, and based on the received position information and time information, the position of the parking lot or the vehicle on the road adjacent to the parking lot A step of specifying a driving mode, and a step of determining whether or not the parking lot is full based on the specified driving mode.

  In this mode, as in mode (1), it is possible to determine whether or not the parking lot is full even for a parking lot that is not provided with a device that detects a vehicle entering or leaving the parking lot. it can.

A computer program according to one embodiment of the present invention includes:
(11) A computer program for causing a computer to determine whether or not the parking lot is full, wherein the computer is configured to determine the location of the parking lot based on the position information and time information of each vehicle transmitted from a plurality of vehicles. Based on the specific part which specifies the traveling mode of the vehicle on the road adjacent to the parking lot, and the driving mode specified by the specific part, the determination unit determines whether or not the parking lot is full.

  In this aspect, the computer that executes the computer program, as in aspect (1), is full even in a parking lot that is not provided with a device for detecting a vehicle entering or leaving the parking lot. It can be determined whether or not there is.

[Details of the embodiment of the present invention]
A specific example of a parking lot fullness determination system according to an embodiment of the present invention will be described below with reference to the drawings. In addition, this invention is not limited to these illustrations, is shown by the claim, and intends that all the changes within the meaning and range equivalent to the claim are included. Moreover, you may combine arbitrarily at least one part of embodiment described below.

(Embodiment 1)
FIG. 1 is a conceptual diagram showing a configuration example of a parking lot fullness determination system according to Embodiment 1 of the present invention. The parking lot fullness determination system according to the first embodiment is filled with a plurality of parking lots P in a plurality of predetermined time zones based on probe information collected from a plurality of vehicles C traveling on a road R. It is a system which makes it possible to determine and store whether or not and to use the stored determination result as appropriate. For example, the parking lot availability determination system determines whether or not the parking lot P is full for each time zone, and stores the availability of the parking lot P in each time zone based on past determination results. It has a function to predict. The probe information includes position information, speed information, time information, and the like of the vehicle C.
The parking lot fullness determination system includes a parking lot fullness determination device 1 connected to a communication network N and in-vehicle devices 2 mounted on a plurality of vehicles C. The in-vehicle device 2 is, for example, a car navigation device that can detect the position of the vehicle C on which it is mounted and has a function of performing wireless communication with an external communication device. A detector 3 that detects the speed of the vehicle C is connected to the in-vehicle device 2, and the in-vehicle device 2 includes position information of the detected vehicle C, time information, speed information detected by the detector 3, and the like. The probe information is transmitted to the parking lot full determination device 1 via the communication network N. The parking lot full determination device 1 receives and accumulates probe information transmitted from the in-vehicle device 2. The parking lot availability determination device 1 determines whether or not each of the plurality of parking lots P is full based on the accumulated probe information, and stores the availability of the parking lot P for each time zone. And the parking lot full determination apparatus 1 provides the information which concerns on the full parking situation of each parking lot P memorize | stored, or utilizes it for the search of the empty parking lot P thru | or the destination.

  FIG. 2 is a conceptual diagram illustrating a configuration example of the parking lot fullness determination device 1 according to the first embodiment. The parking lot fullness determination device 1 is a computer including a control unit 11 such as a CPU (Central Processing Unit) that controls the operation of each component of the parking lot fullness determination device 1, for example. ROM 12, RAM 13, communication unit 14, storage unit 15, and clock 16 are connected to control unit 11 via a bus.

  The ROM 12 is a nonvolatile memory such as an EEPROM (Electrically Erasable Programmable ROM) and stores a control program necessary for the initial operation of the computer.

  The RAM 13 is a memory such as a DRAM (Dynamic RAM), an SRAM (Static RAM), and the like. The control program read from the ROM 12 and the storage unit 15 when executing the arithmetic processing of the control unit 11 and a computer program 41 described later. Alternatively, various data generated by the arithmetic processing of the control unit 11 is temporarily stored.

  The communication unit 14 is an interface for transmitting / receiving various types of information to / from the external in-vehicle device 2 and other communication devices. Transmission / reception of various types of information by the communication unit 14 is controlled by the control unit 11. For example, the communication unit 14 receives probe information transmitted from the in-vehicle device 2 as information for determining whether the parking lot P is full. Moreover, the communication part 14 transmits the information based on the full space situation of the parking lot P to the vehicle equipment 2 according to the request | requirement of the vehicle equipment 2.

  The clock 16 measures the date and time. The clock 16 has calendar information, and the control unit 11 can acquire time information such as the current date, time and day of the week from the clock 16.

The storage unit 15 is a nonvolatile memory such as an EEPROM (Electrically Erasable Programmable ROM) or a flash memory. The storage unit 15 stores a computer program 41 for causing the computer to function as the parking lot fullness determination device 1 by the control unit 11 controlling the operation of each component of the parking lot fullness determination device 1. . The computer program 41 determines and stores whether or not the parking lot P is full, and causes the computer to execute a process of predicting the full availability of the parking lot P in each time zone based on past determination results. It is a program.
The computer program 41 according to the first embodiment may be recorded in the recording medium 4 so as to be readable by a computer. The recording medium 4 determines and stores whether or not the parking lot P is full for each time zone, and is a computer for predicting the full availability of the parking lot P in each time zone based on past determination results. A program 41 is stored. The storage unit 15 stores a computer program 41 read from the recording medium 4 by a reading device (not shown). The recording medium 4 is a CD (Compact Disc) -ROM, a DVD (Digital Versatile Disc) -ROM, an optical disc such as a BD (Blu-ray (registered trademark) Disc), a flexible disc, a magnetic disc such as a hard disc, a magnetic optical disc, and a semiconductor memory. Etc. Further, the computer program 41 according to the first embodiment may be downloaded from an external computer (not shown) connected to the communication network N and stored in the storage unit 15.

  Moreover, the memory | storage part 15 has memorize | stored map information 15a, probe information DB (Data Base) 15b, departure / arrival time DB15c, and full DB15d. The map information 15a includes image data representing roads R and buildings on which the vehicle C travels, parking lot position information indicating positions and ranges of a plurality of parking lots P, information on road links that logically configure the roads R, etc. including. The road link is a road section between two adjacent intersections, and logically constitutes a road R on which the vehicle C travels. Each road link is connected by a node corresponding to an intersection, and logically constitutes a road network. Details of each DB will be described later.

  FIG. 3 is a conceptual diagram illustrating a configuration example of the vehicle-mounted device 2 according to the first embodiment. The in-vehicle device 2 is, for example, a computer including a control unit 21 such as a CPU that controls the operation of each component of the in-vehicle device 2 and constitutes a car navigation device. A ROM 22, a RAM 23, an in-vehicle communication unit 24, a storage unit 25, a display unit 26, an operation unit 27, a clock 28, a position detection unit 29, and an acquisition unit 30 are connected to the control unit 21 via a bus. The hardware configuration of the control unit 21, the ROM 22, the RAM 23, the storage unit 25, and the clock 28 is the same as that of the parking lot full determination device 1.

  The in-vehicle communication unit 24 is an interface for transmitting / receiving various types of information to / from the external parking lot full determination device 1, and the transmission / reception of various types of information by the in-vehicle communication unit 24 is controlled by the control unit 21.

  The display unit 26 is a display device such as a liquid crystal display, an organic EL display, or electronic paper.

  The operation unit 27 is a touch sensor that detects a finger contact position based on a change in electrostatic capacitance or electric capacitance caused by contact of the finger with the display unit 26. The touch sensor is an example of the operation unit 27, and may be a pointing device such as a mouse or a touch pen, or various keys.

  The position detection unit 29 includes a GPS receiver. The GPS receiver constitutes a GPS system together with an unillustrated artificial satellite (GPS satellite), receives radio waves from the artificial satellite, and acquires its position information.

  The acquisition unit 30 is an interface through which information related to a detection value output from the detector 3 mounted on the vehicle C is input. The detector 3 includes, for example, a vehicle speed sensor that detects the speed of the vehicle C, and the acquisition unit 30 acquires speed information and the like.

  The car navigation device as the in-vehicle device 2 may be a dedicated device, or may be a communication terminal such as a smartphone that realizes a car navigation function by executing application software. Further, the in-vehicle device 2 may be portable or may be fixedly mounted on the vehicle C.

  FIG. 4 is a flowchart showing a processing procedure related to collection and storage of probe information. The control part 21 of the vehicle equipment 2 detects the position of the vehicle C by the position detection part 29 (step S11). And the control part 21 acquires speed information etc. in the acquisition part 30 from the detector 3 which detects the speed of the vehicle C (step S12). Next, the control unit 21 measures time with the clock 28 (step S13). Specifically, the control unit 21 acquires time information indicating the current time from the clock 28. Next, the control unit 21 transmits probe information including the identifier of the vehicle C, time information, position information, and vehicle speed information to the parking lot full determination device 1 by the in-vehicle communication unit 24 (step S14). The storage unit 25 stores the identifier of the vehicle C. The in-vehicle device 2 mounted on the vehicle C intermittently executes a process of transmitting probe information to the parking lot full determination device 1. For example, the in-vehicle device 2 periodically transmits probe information to the parking lot full determination device 1 at a cycle of several minutes.

  The control part 11 of the parking lot full determination apparatus 1 receives the probe information transmitted from the vehicle equipment 2 in the communication part 14 (step S15). And the control part 11 memorize | stores the received probe information in the memory | storage part 15 (step S16), and complete | finishes a process. Specifically, the control unit 11 registers the identifier included in the probe information, the time indicated by the time information, the position of the vehicle C indicated by the position information and the speed information, and the vehicle speed in association with each other in the probe information DB 15b.

  FIG. 5 is a conceptual diagram showing a record layout example of the probe information DB 15b. The probe information DB 15b is a database for storing the probe information transmitted from the in-vehicle device 2 to track the vehicle C and temporarily accumulate information for specifying the frequency of arrival and departure of the vehicle C in the parking lot P. It is. The probe information DB 15b stores the probe information number (NO) assigned to each of the received plurality of probe information, an identifier for identifying the vehicle C, information such as the time, position, and speed when the vehicle C travels in association with each other. doing. The identifier is represented by a numerical value such as “0001”. The position is represented by, for example, latitude and longitude. The vehicle speed is a numerical value represented by, for example, an hourly speed.

  FIG. 6 is a flowchart showing a processing procedure for specifying and registering the arrival and departure times of the vehicle C in the parking lot P, and FIG. 7 is a conceptual diagram showing the trajectory of the vehicles that arrive and depart from the parking lot P. The following processing relating to the specification of the arrival and departure times of the vehicle C in the parking lot P is executed at a timing when a certain amount of probe information is accumulated in the probe information DB 15b. The control part 11 of the parking lot full determination apparatus 1 reads probe information from probe information DB15b (step S31). That is, the control unit 11 reads the identifier, position information, and time information received and stored at a plurality of different time points for one or a plurality of vehicles C. And the control part 11 pinpoints the arrival point of the vehicle C (step S32).

  FIG. 7A is a conceptual diagram showing the trajectory of the vehicle C that has arrived at the parking lot P and parked. The control unit 11 obtains the trajectory of the vehicle C by specifying the position of the vehicle C at each time associated with one identifier. In FIG. 7A, a curve indicated by a broken line indicates the locus of the vehicle C, and a black circle indicates the arrival point of the vehicle C. 7A shows that the vehicle C has moved from outside the parking lot P into the parking lot P and has stopped inside the parking lot P. The control unit 11 can specify the time that the vehicle C is continuously stopped at a specific position by specifying the position of the vehicle C at each time associated with one identifier. For example, when the position of one vehicle C is the same for a predetermined time or more, that is, when the position indicated by the position information associated with one identifier is the same for a predetermined time or more, the control unit 11 arrives at the position. Specify as a point.

Subsequently, the control part 11 determines whether the arrival point of the vehicle C is in the parking lot P (step S33). The control unit 11 can specify the position and range of the parking lot P based on the parking lot position information of the map information 15a stored in the storage unit 15, and the position of the arrival point specified in step S32 is the map information. It is determined whether it corresponds to the position of any one parking lot P included in 15a. When it determines with it being in the parking lot P (step S33: YES), the control part 11 specifies the time which arrived in the parking lot P based on the positional information and time information of the vehicle C (step S34). The time specified here may be an accurate time when the vehicle C arrives at the parking lot P, or may be a time zone including the time. Hereinafter, the time or time zone specified in this way is referred to as time. In the first embodiment, an example in which the arrival time and the departure time described later are mainly specified by the time will be described. Therefore, when the point is the time, the arrival time and the departure time are referred to.
Next, the control unit 11 specifies attributes related to the fullness of the parking lot P other than the time, such as the type of date and day of the week when the vehicle C arrives at the parking lot P and parks it (step S35). Examples of the day of the week include weekdays, weekends and holidays, and consecutive holidays. The day of the week classification method is not particularly limited, and may be classified as “weekdays” and “holidays”. And the control part 11 registers the parking lot ID which shows the parking lot P where the vehicle C arrived, the date of the vehicle C arrival at the parking lot P, the type of day of the week, and the arrival time information in the departure and arrival time DB 15c ( Step S36). The controller 11 deletes the probe information before arrival from the probe information DB 15b among the probe information of the vehicle C in which the arrival time is registered (step S37).

  When the process of step S37 is completed, or when it is determined in step S33 that the arrival point is not in the parking lot P (step S33: NO), the control unit 11 specifies the departure point of the vehicle C (step S38). .

  FIG. 7B is a conceptual diagram showing the trajectory of the vehicle C that departs from the parking lot P. In FIG. 7B, the curve indicated by the broken line indicates the trajectory of the vehicle C, and the black circle indicates the starting point of the vehicle C. According to the locus shown in FIG. 7B, it can be seen that the vehicle C is moving from the parking lot P to the outside of the parking lot P. The control unit 11 specifies the position of the vehicle C at each time associated with the one identifier, so that the vehicle C departs from the position for a time during which the vehicle C continuously stops at a specific position. Can be identified. For example, when the position of one vehicle C has been the same for a predetermined time or more and the position of the vehicle C has changed after that, the control unit 11 determines the position that has been stopped for a predetermined time or more as the departure point. Specify as location.

  Next, the control unit 11 determines whether or not the departure point of the vehicle C is in the parking lot P (step S39). The control unit 11 can specify the position and range of the parking lot P based on the parking lot position information of the map information 15a stored in the storage unit 15, and the position of the departure point specified in step S38 is the map information. It is determined whether it corresponds to the position of any one parking lot P included in 15a. When it determines with it being in the parking lot P (step S39: YES), the control part 11 specifies the time which departed from the parking lot P based on the positional information and time information of the vehicle C (step S40). Subsequently, the control part 11 specifies the attribute relevant to the fullness of the parking lot P other than time, such as the date of the vehicle C leaving the parking lot P, the kind of day of the week, etc. (step S41). And the control part 11 registers the parking lot ID which shows the parking lot P from which the vehicle C departed, the date of the day from which the vehicle C left the parking lot P, the type of the day of the week, and the departure time information in the departure and arrival time DB 15c ( Step S42).

  The control unit 11 deletes the probe information before departure from the probe information DB 15b among the probe information of the vehicle C in which the departure time is registered (step S43).

  When the process of step S43 is completed, or when it is determined in step S39 that the departure point is not in the parking lot P (step S39: NO), the control unit 11 performs all the vehicles C registered in the probe information DB 15b. Then, it is determined whether or not the departure / arrival time has been determined (step S44). When it determines with there being the vehicle C which has not performed the determination of departure / arrival time (step S44: NO), the control part 11 returns a process to step S31. When it is determined that the departure / arrival time has been determined for all the vehicles C (step S44: YES), the control unit 11 ends the process.

  FIG. 8 is a conceptual diagram showing a record layout example of the departure / arrival time DB 15c. The departure / arrival time DB 15c is a database that stores information such as the time when the vehicle C arrives at the parking lot P, the time when the vehicle C leaves the parking lot P, and the like. The departure / arrival time DB 15c stores a parking lot ID for identifying the parking lot P where the vehicle C arrives or departs, a date on which the vehicle C arrives and departs, a day type, and an arrival time or departure time in association with each other. ing.

  FIG. 9 is a flowchart showing a processing procedure for determining whether the parking lot P is full. The flowchart shown in FIG. 9 shows a processing procedure for determining whether or not a certain parking lot P is full, but the parking lot fullness determination device 1 performs the same processing for other parking lots P. Run. The controller 11 of the parking lot fullness determination device 1 specifies the arrival frequency at which the vehicle C arrives at the parking lot P for each predetermined time zone and day of the week based on the information registered in the departure / arrival time DB 15c (step) S51). Moreover, the control part 11 specifies the departure frequency from which the vehicle C leaves the parking lot P for every predetermined time slot | zone and day of the week based on the information registered into departure / arrival time DB15c (step S52).

FIG. 10 is a graph showing temporal changes in arrival frequency and departure frequency. The horizontal axis represents time, and the vertical axis represents arrival frequency or departure frequency. The thick line is a graph showing the frequency of arrival of the vehicle C at the parking lot P, and the thin line is a graph showing the frequency of the departure of the vehicle C from the parking lot P.
As shown in the graph, the time zone in which the arrival frequency is increased compared to the departure frequency is a state in which the vehicle C has arrived at the parking lot P and can be parked. P is a state in which there is a vacancy.
The time zone in which the arrival frequency decreases sharply and the arrival frequency and the departure frequency are balanced is a state in which another vehicle C is parked in an empty space generated by the vehicle C leaving the parking lot P. Therefore, the parking lot P in the time zone is full.
Thereafter, the time zone in which the departure frequency is higher than the arrival frequency is a state in which the vehicle C departs from the parking lot P and the parking lot P is vacant.
Thus, based on the arrival frequency and departure frequency of the vehicle C in the parking lot P, it can be determined whether the parking lot P is full. Returning to FIG. 9, the fullness determination process of the parking lot P will be specifically described.

  The control part 11 which finished the process of step S52 determines whether the arrival frequency is increasing compared with the departure frequency in one time slot | zone (step S53). When it is determined that the arrival frequency is increasing (step S53: YES), it is temporarily stored that the parking lot P in the one time zone is empty (step S54).

  If it is determined that the arrival frequency has not increased (step S53: NO), the controller 11 determines whether the departure frequency and the arrival frequency are balanced in the one time zone after the arrival frequency has increased or decreased. Is determined (step S55). If it is determined that the arrival and departure frequency is balanced (step S55: YES), the control unit 11 temporarily stores that the parking lot P is full in the one time zone (step S56).

  When it is determined that the arrival / departure frequency is not balanced (step S55: NO), the control unit 11 determines whether the departure frequency has increased compared to the arrival frequency in the one time period after the arrival / departure frequency is balanced. Determination is made (step S57). When it determines with the departure frequency having increased compared with the arrival frequency (step S57: YES), the control part 11 memorize | stores that the parking lot P in the said one time slot | zone is an empty state (step S58).

  When it is determined that the departure frequency has not increased compared to the arrival frequency (step S57: NO), or when the processes of step S54, step S56, and step S58 are completed, the control unit 11 determines the parking lot that is the determination target. The determination result relating to the parking lot P being full is registered in the full DB 15d in association with the parking lot ID and the attribute relating to the departure and arrival date (step S59). Specifically, the control unit 11 registers the parking lot ID and day type and the full / empty determination result in each time zone in association with the full DB 15d. When the state of the parking lot P is not specified as a result of the fullness determination process, the fact that the fullness state cannot be specified in the time zone is registered in the full DB 15d.

  Next, the control unit 11 determines whether or not all day of the week and time zone fullness determination processing has been performed (step S60). When it is determined that the full day and time zone fullness determination process is not performed (step S60: NO), the control unit 11 returns the process to step S53. When it determines with having performed the full day determination process of all days and time zones (step S60: YES), the control part 11 complete | finishes a process.

  FIG. 11 is a conceptual diagram showing an example of a record layout of the full DB 15d. The full DB 15d is a database that stores information indicating whether the parking lot P is full for each time zone, for each type of parking lot P and day of the week. Specifically, the full DB 15d stores a parking lot ID, a type of day of the week, and information indicating a full empty determination result in each time zone in association with each other. In the first embodiment, the full DB 15d stores, for each parking lot P and day type, information indicating whether or not the parking lot P is full for each time slot obtained by dividing 24 hours into 12 equal parts. Yes. In FIG. 11, “empty” indicates that the parking lot P is empty, and “full” indicates that the parking lot P is full. In addition, although the example which divides and stores the information which shows whether the parking lot P is full every 2 hours was shown in FIG. 11, 2 hours is an example, and it is a short time or long time division It may be configured to store information indicating that the parking lot P is full.

Although the usage method of the information stored in the full DB 15d is not particularly limited, a usage example will be described below.
For example, when a specific parking lot P is set as a destination in the in-vehicle device 2 that is a car navigation device, based on the information in the full DB 15d, the time zone or the parking lot P where the parking lot P is expected to be full It is possible to notify the user of the time period when the user is expected to be free. Specifically, the in-vehicle device 2 transmits request information for requesting information related to the fullness of the parking lot P together with the parking lot ID of the parking lot P to the parking lot fullness judging device 1. When the parking lot fullness judging device 1 receives the request information, the parking lot P is full based on the read information read out from the full DB 15c information associated with the received parking lot ID. Identify the time zone that has been idle or idle. And the parking lot full determination apparatus 1 transmits the information which shows the specified time slot | zone to the vehicle equipment 2. The in-vehicle device 2 receives the information and, based on the received information, displays a time zone in which the specific parking lot P is expected to be full or a time zone in which the parking lot P is expected to be empty. To display.
In addition, when the arrival time at the specific parking lot P is a time zone expected to be full, another parking lot P close to the parking lot P is specified based on the map information 15a, and the specified parking lot is specified. It can also comprise so that a user may be notified of the information of the parking lot P. FIG. When the arrival time of the sightseeing spot in the parking lot P is a time zone where the vehicle is expected to be full, the user may be notified of information on other sightseeing spots.

In addition, when a search operation for the parking lot P is performed by the in-vehicle device 2 that is a car navigation device, the parking lot P that is expected to be full at the estimated time of arrival at the parking lot P is excluded, and it is expected that the parking lot P is not full. The parking lot P can be selectively listed and notified to the user.
Specifically, the in-vehicle device 2 transmits request information for requesting information on the parking lot P together with the current position information of the vehicle C to the parking lot full determination device 1. When the parking lot fullness determination device 1 receives the request information, the parking lot fullness determination device 1 identifies the parking lot P within a predetermined distance from the position indicated by the received position information. And the parking lot full determination apparatus 1 calculates the estimated time when the vehicle C arrives at each parking lot P. Next, the parking lot availability determination device 1 identifies the availability of the parking lot P at the estimated arrival time of each parking lot P based on the information of the availability DB 15c. Then, the parking lot full determination device 1 creates a list of parking lots P in the empty state among the parking lots P within the predetermined distance, and transmits information on the list to the in-vehicle device 2. The in-vehicle device 2 receives the information, and displays a list of parking lots P in an empty state on the display unit 26 based on the received information.
In addition, while listing up all the parking lots P, you may comprise so that the full availability forecast of each parking lot P may be notified together.
Furthermore, the parking lot availability determination device 1 estimates the congestion status of each area based on the availability status of each of the plurality of parking lots P included in each area obtained by dividing the map. Information can also be provided to the user.

  Furthermore, the parking space fullness judging device 1 uses the information on the homepage to predict the availability of each parking lot P, that is, whether or not the parking lot P is full for each day of the week and time zone. It can also be configured to be disclosed to the public.

FIG. 12 is a conceptual diagram showing a display example of the full availability of the parking lot P. When displaying the full availability of a specific parking lot P and notifying the user, it is preferable to indicate the expectation of full availability in the form of a chart as shown in FIG. Each cell arranged in the row direction (lateral direction) corresponds to a plurality of time zones. Each time zone corresponds to 2 hours, and 24 hours are divided into 12 time zones and displayed. Each cell arranged in the row direction (vertical direction) corresponds to the fullness determination result of the parking lot P on weekdays, weekends and holidays and consecutive holidays. Open squares indicate that the parking lot P is empty, and hatched squares indicate that the parking lot is full.
In addition, although the example which classify | categorizes and displays the information which shows whether the parking lot P is full for every 2 hours was shown in FIG. 12, 2 hours is an example and it is a short time or long time division You may comprise so that the full space of the parking lot P may be displayed every time.
According to the parking lot fullness determination system according to the first embodiment configured as described above, since the parking lot P is configured to determine whether the parking lot P is full based on the probe information, When there is no device to detect entry and exit of C, if the administrator manages the parking space P availability information stand-alone, the parking space P availability information is not disclosed to the outside. Even in this case, it is possible to determine whether the parking lot P is full.

  Moreover, the parking lot full determination apparatus 1 can determine whether the parking lot P is full based on the arrival frequency. The arrival frequency decreases when the parking lot P is full. In particular, when the parking lot P becomes full from a vacant state, the arrival frequency drastically decreases. Therefore, the parking lot full determination device 1 can determine whether or not the parking lot P is full based on the arrival frequency.

  Furthermore, the parking lot full determination device 1 can determine whether or not the parking lot P is full based on the arrival frequency and the departure frequency. When the departure frequency increases, the parking lot P becomes empty. Therefore, the parking lot full determination device 1 can determine whether or not the parking lot P is full based on the departure frequency.

In addition, since the difference between the arrival frequency and the departure frequency varies depending on the fullness of the parking lot P, the parking lot fullness determination device 1 more accurately determines whether the parking lot P is full based on the difference. Can be determined.
Specifically, after the arrival frequency increases from the departure frequency, the parking lot availability determination device 1 determines that the parking lot P in the time zone in which each frequency is balanced is full when the arrival frequency and the departure frequency are balanced. It can be determined that there is.
In addition, the parking lot availability determination device 1 can determine that the parking lot P has a vacancy when the departure frequency increases more than the arrival frequency after the arrival frequency and the departure frequency are balanced.

In addition, in this Embodiment 1, although the process which estimates the full empty condition of the present parking lot P was illustrated based on the past full empty condition of each parking lot P accumulate | stored in the full empty DB15d, When a necessary and sufficient amount of probe information can be collected in real time, the availability of the parking lot P may be determined based on the currently collected probe information.
In addition, based on the probe information in the probe information DB 15b, together with the result of determining whether the parking lot P is full in each time zone, the vehicle C is parked after entering the parking lot P in each time zone. The time required may be specified and the time may be stored. The parking lot fullness determination device 1 can provide the user with information regarding the time required to actually complete parking after entering the parking lot P in addition to the full availability of the parking lot P. The user can schedule the arrival time at the parking lot P in consideration of the time required to finish parking at the parking lot P.
Similarly, based on the full availability determination result of the parking lot P in each time zone and the probe information in the probe information DB 15b, until the vehicle C goes out of the parking lot P from the parking spot of the parking lot P in each time zone. The time required may be specified and the time may be stored. The parking lot fullness judging device 1 can provide the user with information regarding the time required to get out of the parking lot P in addition to the full availability of the parking lot P. The user can plan the time to leave the parking lot P in consideration of the time required to leave the parking lot P.

(Embodiment 2)
Because the parking lot fullness determination system, the parking lot fullness determination device 1, the parking lot fullness determination method, and the computer program 41 according to the second embodiment are different from the first embodiment in the processing procedure related to the parking lot fullness determination. Hereinafter, the above differences will be mainly described. Since other configurations and operational effects are the same as those of the first embodiment, the corresponding portions are denoted by the same reference numerals, and detailed description thereof is omitted.

FIG. 13 is a flowchart showing a processing procedure related to parking space P fullness determination in Embodiment 2 of the present invention, and FIG. 14 is a conceptual diagram showing an example of traffic jam that occurs when the parking lot P is full. . In FIG. 14, the thick line portion indicated by the symbol A indicates a location where traffic congestion has occurred. The flowchart shown in FIG. 13 shows a processing procedure for determining whether or not one parking lot P is full, but the parking lot fullness determination device 1 performs the same processing for other parking lots P. Run.
The control part 11 of the parking lot full determination apparatus 1 reads probe information from probe information DB15b (step S251). And the control part 11 specifies the average travel time of the some vehicle C in the one time slot | zone of the road R adjacent to the parking lot P (step S252). By referring to the map information 15 a stored in the storage unit 15, the control unit 11 can specify the road R adjacent to the parking lot P. Then, the control unit 11 specifies the average travel time based on the probe information of the vehicle C traveling on the road R. The average travel time is the time required to travel on the road R.

And the control part 11 determines whether the specified average travel time is less than a threshold value (step S253). When it is determined that the average travel time is less than the threshold value (step S253: YES), the control unit 11 generates a traffic jam until just before the road R adjacent to the parking lot P, as indicated by reference numeral A in FIG. It is determined whether or not it has been done (step S254). Depending on the parking lot P, in order to avoid the occurrence of traffic congestion in the vicinity of the parking lot P, there is a place where waiting for an empty space near the entrance of the parking lot P is prohibited when the parking lot P is full. In such a parking lot P, the traffic jam suddenly disappears when the parking lot P is full. Step S254 is processing for determining whether or not such a situation has occurred.
When it is determined that no traffic jam has occurred (step S254: NO), the control unit 11 temporarily stores that the parking lot P in the one time zone is empty (step S255).

  When it is determined that a traffic jam has occurred immediately before (step S254: YES), or when it is determined in step S253 that the average travel time is equal to or greater than the threshold (step S253: NO), the control unit 11 determines whether the one time It is temporarily stored that the parking lot P in the belt is full (step S256).

  Next, the control unit 11 registers the determination result relating to the parking lot P being full in the full DB 15d in association with the parking lot ID of the parking lot P to be determined and the attribute relating to the departure and arrival date (step S257). .

  Next, the control unit 11 determines whether or not all day of the week and time zone fullness determination processing has been performed (step S258). When it is determined that the full day and time zone fullness determination process is not performed (step S258: NO), the control unit 11 returns the process to step S251. When it is determined that the full day determination process for all days and times is performed (step S258: YES), the control unit 11 ends the process.

  According to the second embodiment, the parking lot P that is not provided with a device for detecting entry and exit of the vehicle C, the parking lot P that manages stand-alone availability information, and the availability information is not disclosed to the outside. As for the parking lot P, the fullness of the parking lot P can be determined based on the average travel time on the road R adjacent to the parking lot P.

  In the second embodiment, the configuration for determining whether the parking lot P is full based on the average travel time on the road R adjacent to the parking lot P has been described. However, the vehicle travels on the road R adjacent to the parking lot P. The parking lot P may be determined based on the speed of the vehicle C to be used. Specifically, the control unit 11 specifies the average speed of the vehicle C on the road R adjacent to the parking lot P in step S252. The average speed can be calculated based on vehicle speed information included in probe information collected from a plurality of vehicles C. Then, in step S253, the control unit 11 determines whether or not the average speed is equal to or higher than a threshold value related to the speed. When the average speed is less than the threshold, the parking lot P is determined to be full. If the average speed is equal to or greater than the threshold and no traffic jam has occurred immediately before, it is determined that there is an empty space in the parking lot P (step S255).

  Moreover, although the example which specifies the average travel time of the vehicle C based on the probe information collected from the vehicle C has been described, the information obtained by the beacon provided on the road R and other sensors is collected, and the You may comprise so that the average travel time in the road R adjacent to the parking lot P may be specified based on information.

(Embodiment 3)
The parking lot availability determination system, the parking lot availability determination device 1, the parking lot availability determination method, the computer program 341, and the recording medium 304 according to the third embodiment associate the results of the parking lot P availability determination with each other. Since the contents of the attribute to be stored are different, the difference will be mainly described below. Since other configurations and operational effects are the same as those of the first embodiment, the corresponding portions are denoted by the same reference numerals, and detailed description thereof is omitted.

  FIG. 15 is a conceptual diagram showing a configuration example of a parking lot fullness determination system according to Embodiment 3 of the present invention. Similar to the first embodiment, the parking lot fullness determination system according to the third embodiment includes a parking lot fullness determination device 1 and an in-vehicle device 2 connected to the communication network N. The parking lot fullness determination system according to the third embodiment further includes an information providing device 305 that provides information about the fullness of the parking lot P and that changes with time. The information providing device 305 is connected to the communication network N, and transmits attribute information related to the parking lot P fullness to the parking lot fullness judging device 1 in response to a request from the parking lot fullness judging device 1. . Attributes relating to the parking lot P being full are, for example, the season, weather, traffic conditions, and various events. Events include holding sports games and various events. The parking lot fullness determination device 1 receives the attribute information transmitted from the information providing device 305 and associates the attribute with the fullness determination result of the parking lot P and stores it in the storage unit 15.

  FIG. 16 is a conceptual diagram illustrating a configuration example of the parking lot fullness determination device 1 according to the third embodiment. The storage unit 15 of the parking lot availability determination device 1 according to the third embodiment stores the availability determination result of the parking lot P in the availability DB 315d, and the parking lot ID and attribute related to the availability determination result are stored in the availability. The attribute DB 315e is stored in association with the determination result. The full DB 315d and the attribute DB 315e function as a determination result storage unit that stores the full determination result of the parking lot P determined for each time zone in association with the attribute. The collection of probe information by the parking lot availability determination device 1 and the availability determination method of each parking lot P are the same as those in the first embodiment, and the contents of the attributes specified in step S35 and step S41 and the availability judgment result The storage method is different.

  FIG. 17 is a conceptual diagram illustrating a record layout example of the full DB 315d according to the third embodiment. The full DB DB 315d of the third embodiment stores information indicating whether or not the parking lot P is full for each time zone and day type in association with the full information ID. In other words, the full DB 315d stores the full information ID, the day type, and information indicating the full determination result of each time zone in association with each other. The full space information ID is information for associating a parking lot ID and various attributes corresponding to the full space determination result information.

FIG. 18 is a conceptual diagram illustrating a record layout example of the attribute DB 315e according to the third embodiment. The attribute DB 315e stores parking lot ID, season, weather, traffic situation, and event information in association with full space information ID. The controller 11 of the parking lot availability determination device 1 can identify the availability information ID corresponding to a specific parking lot P, season, weather, traffic situation, and event by referring to the attribute DB 315e. For example, when the parking lot ID “0001”, the season “spring”, the weather “sunny”, and there is no special event, the full space information ID “0001” is specified.
Based on the full space information ID “0001”, the control unit 11 can search for and read the full space determination result information corresponding to the full space information ID “0001” from the full space DB 315d.

  According to the third embodiment, the parking lot fullness determination device 1 associates the fullness determination result of the parking lot P determined for each time zone with not only the day type but also other attributes in the storage unit 15. In order to memorize | store, the full availability condition of the parking lot P can be memorize | stored in consideration of the kind and attribute of a day of the week. The parking lot availability determination device 1 estimates a more accurate availability of the parking lot P according to the type and attribute of the day of the week by referring to the availability DB 315d and the attribute DB 315e, and various types based on the exact availability Information can be provided to the user.

  Specifically, the parking lot availability determination device 1 stores the availability judgment result of each parking lot P in association with the time zone, day type, season, weather, traffic conditions, and events. Therefore, the full availability of the parking lot P for each time zone can be estimated in consideration of the type of the day of the week, the season, the weather, the traffic situation, and the influence of the event.

  The embodiment disclosed this time is to be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the meanings described above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

DESCRIPTION OF SYMBOLS 1 Parking lot fullness determination apparatus 2 Onboard equipment 3 Detector 4, 304 Recording medium 11 Control part 12 ROM
13 RAM
14 communication unit 15 storage unit 15a map information 15b probe information DB
15c departure / arrival time DB
15d Full DB
16 Clock 21 Control unit 22 ROM
23 RAM
24 vehicle-mounted communication unit 25 storage unit 26 display unit 27 operation unit 28 clock 29 position detection unit 30 acquisition unit 41, 341 computer program 305 information providing device 315e attribute DB
C Vehicle N Communication network P Parking lot R Road

Claims (11)

A receiving unit that receives position information and time information of each vehicle transmitted from a plurality of vehicles;
A storage unit for storing the position of the parking lot;
Based on the position information and time information received by the receiving unit, a specifying unit that specifies a position of the parking lot stored in the storage unit or a traveling mode of a vehicle on a road adjacent to the parking lot;
A parking lot fullness determination device comprising: a determination unit that determines whether or not the parking lot is full based on the travel mode specified by the specification unit. The specific part is:
An arrival time specifying unit for specifying an arrival time when the vehicle arrives at the parking lot and is parked;
The arrival frequency specifying unit that specifies the arrival frequency of a vehicle that arrives at the parking lot and parks for each predetermined time period based on the arrival time specified by the arrival time specifying unit. Parking lot fullness judgment device. A departure time specifying unit for specifying a departure time when the vehicle leaves the parking lot;
The departure frequency specifying unit that specifies the departure frequency of the vehicle leaving the parking lot for each of the predetermined time zones based on the departure time specified by the departure time specifying unit. The parking lot fullness judging device described. The determination unit
When the arrival frequency and the departure frequency are balanced after the arrival frequency is higher than the departure frequency, the parking lot in the time zone in which the arrival frequency and the departure frequency are balanced is full. The parking lot availability determination device according to claim 3. The determination unit
After the arrival frequency and the departure frequency are balanced, if the departure frequency increases above the arrival frequency, it is determined that the parking lot after the departure frequency increases above the arrival frequency is vacant. The parking lot fullness determination apparatus of Claim 3 or Claim 4. The specific part is:
The speed or travel time of the plurality of vehicles on the road adjacent to the parking lot is specified,
The determination unit
The parking lot fullness determination device according to claim 1, wherein the parking lot fullness determination device determines whether or not the parking lot is full for each predetermined time zone based on speeds or travel times of the plurality of vehicles on a road adjacent to the parking lot. . An attribute specifying unit for specifying an attribute related to the parking lot when the receiving unit receives the position information and the time information; and
The determination result which the said determination part determined for every said predetermined time slot | zone is provided with the determination result memory | storage part which matches and memorize | stores the determination result corresponding to the attribute which the said attribute specific | specification part specified. The parking lot fullness judging device described. The parking lot fullness determination device according to claim 7, wherein the attribute includes a type, a season, or weather of a day of the week when the reception unit receives position information and time information. The parking lot fullness judging device according to any one of claims 1 to 8,
An in-vehicle device that is mounted on a vehicle and transmits position information and time information of the vehicle to the parking lot fullness determination device,
The receiving part of the parking lot fullness judging device receives the position information and time information transmitted from the in-vehicle device. Parking lot fullness judging system. Receiving position information and time information of each vehicle transmitted from a plurality of vehicles;
Based on the received position information and time information, the step of identifying the position of the parking lot or the driving mode of the vehicle on the road adjacent to the parking lot;
And determining whether the parking lot is full based on the identified travel mode. A computer program that causes a computer to determine whether a parking lot is full,
The computer,
Based on the position information and time information of each vehicle transmitted from a plurality of vehicles, a specifying unit for specifying a position of the parking lot or a traveling mode of the vehicle on a road adjacent to the parking lot,
A computer program that functions as a determination unit that determines whether or not the parking lot is full based on the driving mode specified by the specifying unit.

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