JP5965109B2 - Parking lot guidance device and route search device - Google Patents

Description

  The present invention relates to a parking lot guidance device and a route search device for guiding a parking lot around an event venue at a destination.

  At large event venues, a large number of customers leave at the end of the event. For this reason, after the event, the roads around the event venue are crowded with people and cars. Therefore, when searching for a parking lot near the event venue to go to the event, if you select only the index "close to the event venue", you will be swallowed by people's waves when you leave the parking lot after the event ends In some cases, it was difficult to travel, resulting in a longer return time.

  Therefore, in order to avoid such a situation assuming such a case, a technique as shown in Patent Document 1 is provided. That is, the parking lot is guided so that it takes a short time to leave the parking lot around the event venue to the main road that is not affected by the waves of people at the end of the event.

JP 2007-256056 A

  In the above cited reference 1, the calculation of the time required for getting out of the traffic jam expected around the event venue after the event ends is performed based on a database indicating a traffic jam situation assumed in advance. However, this database that shows the traffic situation is based on event information gathered by contacting event organizers and reporting to the police, etc., but it reflects the actual situation as it is, although it is somewhat reliable. It may not be a thing.

  In that case, when the event is actually held, there is a deviation in the traffic situation, and an error may occur in the time required to escape from the traffic. In addition, it may be difficult to provide accurate guidance by flexibly following the difference in the type and scale of the event and the change in the traffic situation accompanying changes in surrounding facilities.

  The present invention has been made in consideration of the above circumstances, and the purpose of the present invention is to provide accurate information following the changes in the type and nature of the event held at the event venue or the surrounding facilities, thereby enabling a short period of time. An object of the present invention is to provide a parking lot guidance device and a route search device capable of accurately guiding a parking lot that can exit a traffic jam situation.

According to the parking lot guidance apparatus of claim 1, the facility information collecting means preliminarily receives information on the event venue from an external information source, information on parking lots existing around the event venue, and information on events to be held at the event venue. Information is collected via a communication device. When an event is held at the event venue, the vehicle information collection means communicates movement information transmitted from information providing vehicles located around the event venue after the event is held. Received and collected by the device. The database determines, based on the movement information of the information providing vehicle collected by the vehicle information collecting means, that the moving speed of the information providing vehicle has reached a certain value or more and that the vehicle has entered a road without traffic jams. The vehicle trajectory from the parking lot in the vicinity of the event venue to the road with no traffic jam is extracted and acquired as probe information, and the event venue and event type information are stored in association with each other. Based on the probe information accumulated in the database, the traffic jam escape time estimation means performs a calculation to estimate the time required to move from a parking lot around the event venue to a road with no traffic jam after the event as a traffic jam escape time. .

In the above case, traffic jam information can be obtained based on the travel information of the information-providing vehicle after the end of the event actually performed at the event venue, and when the same type of event is held, the traffic escapes after the event ends Can be accurately estimated. When the event venue is designated as the destination, the parking lot information guidance means identifies the event to be held from the event information collected by the facility information collection means, and exists around the designated event venue. When there are a plurality of parking lots around the event venue in the parking lot, the parking lot with a short traffic escape time is guided.

  As a result, just by specifying the event venue as the destination, you will be guided to nearby parking lots, and after leaving the event venue, you will leave the parking lot and move to a road without traffic in a short time Will be able to. The congestion escape time at this time is based on information from the information providing vehicle that actually moves, and therefore can be accurately predicted, and highly reliable information can be obtained. In addition, since such a configuration is adopted, it is possible to receive provision of appropriate parking lot information even if the situation of the parking lot is not well known at the first event venue or the like.

  According to the parking lot guidance apparatus of claim 2, in the above invention, the intersection of roads around the event venue is calculated based on the position information received from the information providing vehicle when the congestion escape time estimation means calculates the congestion escape time. The travel time is estimated by integrating the travel time between each intersection of the travel route to the road where there is no traffic jam. By calculating the travel time between intersections, based on this, search for the route to reach a road with no traffic jam, and by accumulating the travel time at that time, the search route with the shortest traffic escape time is calculated accurately. can do.

  According to the parking lot guidance apparatus of claim 3, in the invention of claim 1, the congestion escape time estimation means transmits from the information providing vehicle that exits the parking lot around the event venue when calculating the congestion escape time. By collecting the travel information collected, the travel time between each intersection of the travel route to the road without traffic congestion is calculated, so the information providing vehicle that exits the actual parking lot It is possible to obtain the travel route and time although it takes a short time to get to the road where there is no traffic, thereby accurately estimating the traffic escape time.

  According to the parking lot guide apparatus of claim 4, in each of the above inventions, the vehicle information collecting means collects the movement information from the information providing vehicle at intervals of 2 to 30 seconds. Thus, it is possible to accurately estimate traffic escape time. In this case, the collection frequency of information for detecting general congestion is performed at a longer time interval, so to estimate the time required to escape the congestion even if the congestion situation can be recognized. While there may be a shortage of information, it is possible to accurately estimate the escape time of a traffic jam.

  According to the parking lot guidance apparatus of claim 5, in each of the above-mentioned inventions, an event is held by the vehicle information collecting means to collect information from the information providing vehicle after the event of the surrounding parking lot corresponding to the event venue. It is divided into types according to the size of the exit and the exit pattern at the end, and the traffic escape time estimation means is estimated according to the type of event, so when you specify the event venue, Estimating the events that will be held from that point in time to the event venue will give you an indication of the scale of the event and the exit pattern at the end of the event, so that you can accurately determine the type of event similar to that event It is possible to guide the parking lot based on the information on the escape time of the traffic jam.

  According to the parking lot guide device of claim 6, in the invention of claim 5, the vehicle information collecting means can be a pattern that is expected to leave at the same time as the exit pattern at the end of the event. Since movement information is collected by classifying into at least two of the expected patterns, even when there is a difference in the congestion escape time due to the difference in the exit pattern of the people at the venue, the traffic escape time can be accurately Can be estimated.

  According to the parking lot guidance device of claim 7, in each of the above inventions, the parking lot information guidance means guides a plurality of surrounding parking lots to the event venue designated as the destination together with information on estimated escape time of the traffic jam. Therefore, multiple parking lots will be guided along with the difference in traffic escape time, so that the driver of the information requesting vehicle will select the parking lot in consideration of the size of the parking lot and the ease of entering the vehicle, etc. Can do.

  According to the parking lot guidance apparatus of claim 8, in each of the above-mentioned inventions, the traffic jam escape time estimation means includes the traffic jam escape time database, and the traffic jam escape time is estimated and stored according to the event held. Based on the latest information, it is possible to estimate the escape time of traffic jams and provide accurate information.

  According to the parking lot guidance device of claim 9, in each of the above inventions, when the next destination is designated as the destination in addition to the event venue, the parking lot information guidance means causes a plurality of around the event venue. When there is a parking lot, it is possible to guide a parking lot with a short traffic escape time along the direction of traveling to the next destination. As a result, for example, it is possible to prevent a parking lot that is in the wrong direction from being guided even if it is a short traffic escape time, and it takes a long time to go to the next destination after exiting the traffic jam. It is possible to eliminate the occurrence of malfunctions.

  According to the route search device of claim 10, the route search device using the parking lot guidance device of each of the above inventions, the destination information with the event venue as the destination by the communication device to the parking lot guidance device. When transmitted, it is possible to receive information on a parking lot with a short traffic escape time after the event ends in a parking lot around the event venue from the parking lot guidance device. Thereby, the route searching means searches the route to the parking lot around the event venue by setting the event venue as the destination by performing the route search of the corresponding parking lot as the destination. be able to.

  According to the route search device of claim 11, in the above invention, when the parking lot information received by the communication device includes a plurality of parking lots, the display setting means displays them on the map and The parking lot can be designated as a destination. As a result, the user can visually check the desired parking lot and select and set it according to his / her preference, avoiding a parking lot that takes time to park even if the congestion escape time is short, or parking lot It can be used in consideration of various conditions considered by the user, such as excluding a parking lot that takes time to leave.

  According to the route search device of claim 12, in the invention of claim 10 or 11, in addition to designating the event venue as the destination by the destination designation means, designation of the next destination of the event venue is possible Therefore, the parking lot information can be provided from the parking lot guidance apparatus side for the next destination so that the traffic jam escape time is shortened.

Schematic explanatory diagram of a system showing an embodiment of the present invention System block diagram Functional block diagram of information center Data structure diagram of each database Flow chart of information collection processing for each parking lot in the information center Flow chart of processing of car navigation system Flow chart of information center parking lot information processing The figure which shows the concrete example of parking lot guidance The figure which shows the concrete example of information processing of the information center

Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
FIG. 1 is a diagram showing an outline of a system configuration. In this system, an information center 1 functions as a parking lot guidance device and guides a parking lot by performing various data processing. This information center 1 is linked to a communication company 2 equipped with an infrastructure capable of communicating over a wide range using an information communication network such as a mobile communication network, and via the antennas 2a and 2b of the communication company 2. Communication is performed with a data providing vehicle (information providing vehicle) 3a that provides information and a data requesting vehicle (information requesting vehicle) 3b that requests and receives information.

  The information center 1 can be connected to various information providing sites on the Internet, which are external information sources, via an information communication network 4 such as the Internet, and various information such as facility information 5a, event information 5b, and parking lot information 5c. Gather information from sites that provide information. In this case, the facility information 5a is information on a facility used as an event venue, such as an entertainment venue such as a concert venue or a theater venue, an exhibition venue such as a museum or a museum, or a sports venue such as a baseball field or a soccer field. There is. The event information 5b is information on events held in various places, and includes events such as concerts, plays, exhibitions, various events, sports tournaments, baseball games and soccer games. The parking lot information 5c is information on parking lots existing around the event venue, and includes a parking lot attached to the facility, a public parking lot, and a private parking lot.

  Next, a specific configuration of the system will be described with reference to FIG. A vehicle such as the data providing vehicle 3a and the data requesting vehicle 3b is equipped with a car navigation device 6 as a route search device. The car navigation device 6 can provide data and request data, and a vehicle equipped with the data can function as the data providing vehicle 3a, or can function as the data requesting vehicle 3b.

  The car navigation device 6 is mainly configured by a control device 7 that performs control by a program. The control device 7 includes a communication device 8 for communicating with the information center 1 via the antenna 8a, an external memory 9 for storing various information, a display device 10 for displaying information to the user, and information as audio. An audio output device 11 is connected to output the signal. The communication device 8 is for communicating with the information center 1 registered in advance via the communication company 2, and provides travel information and receives parking lot information.

  Further, the control device 7 includes an own vehicle position detection unit 12 for recognizing the position of the own vehicle, a map data providing device 13 that stores map data in a readable manner, and an operation for performing an input operation and the like. A switch group 14 and the like are connected. The own vehicle position detection unit 12 is a device that obtains information for recognizing the current positions of the vehicles 3a and 3b that are own vehicles, and includes a GPS receiver 12a, a gyro sensor 12b, a vehicle speed sensor 12c, and the like. The configuration for recognizing the vehicle position does not have to include all of them. For example, the configuration can be configured by only the GPS receiver 12a, or can be configured by recognizing the vehicle position information from the outside. Is possible.

  When the own vehicle functions as the data providing vehicle 3a, the car navigation device 6 having the above-described configuration is configured to transmit the position information, speed information, etc. of the own vehicle as probe information in response to a request or independently. When the vehicle functions as the data requesting vehicle 3b, when the route search to the set destination is performed, if the event venue is set as the destination, the information center 1 side is connected with the procedure described later. You can get information about parking lots that can escape from traffic jams soon after the event.

  Next, the configuration of the information center 1 will be described. The information center 1 is mainly composed of a control device 15 that performs control by a program. The control center 15 is connected to the control device 15 via a communication device 16 and an information communication network 4 for performing wireless communication with the communication company 2 via the antenna 16a. A communication device 17 for communicating with the external information source 5 is connected.

  The control device 15 is connected with a probe information storage unit 18, an external information storage unit 19, a traffic jam predicted parking lot information storage unit 20, a map data storage unit 21 and the like as storage devices for storing various types of information. Yes. The probe information storage unit 18 is provided with a probe information database and stores movement information received from the data providing vehicle 3a which is an information source of probe information.

  The external information storage unit 19 stores facility information 5a, event information 5b, parking lot information 5c and the like collected from various information providing sites of the external information source 5 on the Internet in a usable data format. A facility DB (database), an event DB (database), and a parking lot DB (database) are provided. The traffic jam prediction parking lot information storage unit 20 predicts, for each parking lot, the result of predicting the time required to escape from the traffic jam after the end of the event, which is obtained by performing arithmetic processing as will be described later. Database).

  FIG. 3 shows the configuration of the information center 1 as a functional configuration according to the content of processing performed internally, unlike the specific configuration of FIG. The control device 15 of the information center 1 executes various processes according to various programs, and a function for performing data processing in the present embodiment is shown as a data processing unit 15a. The data processing unit 15a functions as facility information collection means, vehicle information collection means, traffic jam escape time estimation means, and parking lot information guidance means.

  The receiving device 17 is divided into three receiving devices 17a, 17b, and 17c, and is configured such that the facility DB 19a, the event DB 19b, and the parking lot DB 19c that are provided in the external information storage unit 19 receive and store data, respectively. Has been. Note that the parking information 5c, which is the details of the external information source 5, is actually subdivided to obtain information. Public parking information 51, information provided by the parking company 52, parking facilities attached It corresponds to the car park information 53. The parking lot DB 19c is set to acquire and store parking lot information for each type.

  Since the data processing unit 15a performs data processing based on the data stored in the external information storage unit 19, in this FIG. A configuration in which the receiver 17 and the external information storage unit 19 are connected to each other is illustrated. For the probe information storage unit 18, there are a case where the data received by the receiving device 16 is stored as it is by the control device 15, and a case where the stored information is read later at the time of data processing. An arrow indicating the flow of the is shown.

  FIG. 4 shows the data structure of information stored in each database of the probe information storage unit 18, the external information storage unit 19, and the traffic jam prediction parking lot information storage unit 20 of the information center 1. FIG. 4A shows the data structure in the probe information storage unit 18, and the vehicle ID of the data providing vehicle 3a is associated with the position information, time (time) information, speed information, etc. transmitted from the vehicle. Is remembered. FIG. 4B shows the data structure in the facility DB 19a of the external information storage unit 19, and stores the facility ID of the event venue, the location information of the facility, the information on the accommodation personnel, and the like in association with each other. FIG. 4 (c) shows the data structure of the event DB 19b. Data collected for events held at each event venue includes data such as an event ID and its start time, end time, event type, and event personnel. Correspondingly stored. FIG. 4D shows the data structure of the parking lot DB 19c. Various parking lots such as a public parking lot, a parking lot of a parking lot company, or a parking lot attached to a facility existing around the facility as an event venue are shown. The information is stored in association with the parking lot ID, the location, the business hours, the number of accommodations, full (empty), empty) information, and the like. Moreover, FIG.4 (e) has shown the structure of the data of the traffic jam prediction parking lot information storage part 20, and memorize | stores with the data obtained as a result of having performed the data processing in the data processing part 15a. The parking location, the nearest facility (event venue), the departure time of the parking lot, the arrival time on a road without traffic jams, and the like are stored in association with each other.

  Next, the operation of the present embodiment will be described separately for the processing contents in the process of data collection and data processing and the processing contents in the process of guiding the parking lot when the event venue is designated as the destination.

(1) Data collection and data processing (during learning)
In the process of data collection, the information center 1 is the main body, collecting various information from the external information source 5, collecting data from a large number of data providing vehicles 3a, processing these collected data, and providing services. Create parking lot data to guide you.

  First, in collecting information from the external information source 5, the control device 15 of the information center 1 performs it through the information communication network 4 such as the Internet by an information collecting method such as crawling or a predetermined information collecting program as needed. The control device 15 is connected to various external information sources 5 a, 5 b, 5 c (51-53) via the communication device 17, acquires necessary information, and is stored in the external information storage unit 19.

  Specifically, as described above, the control device 15 collects event venue information from the site of the facility information 5a of the external information source 5 and stores it in the facility DB 19a with the data structure shown in FIG. Event information at the event venue acquired from the event information 5b site as facility information is collected and stored in the event DB 19b with the data structure shown in FIG. 4C. Are collected and stored in the parking lot DB 19c with the data structure shown in FIG.

  Next, information collection from the data providing vehicle 3a will be described. The control device 15 collects probe information from the data providing vehicle 3a located in the vicinity of each parking lot registered in the database. At this time, the probe information receives position information and speed information at a time interval of about 5 to 10 seconds from each data providing vehicle 3a. Further, the vehicle ID for specifying the vehicle is acquired and stored in association with it. In this case, the probe information acquisition time interval is not limited to the above-described time, and can be set in the range of about 2 to 30 seconds. The probe information acquisition time interval may be fixedly set or variably set as necessary. You can also.

  In this case, the collected probe information is generally in the same event venue, but the manner of occurrence of traffic jams differs depending on the type and scale of the event. Therefore, when the types of events are different, they are handled as different probe information. Also, depending on the type of event, it is assumed that the time required to escape the traffic jam will vary, and the parking lot to be guided may change. For example, events such as concerts that leave customers all at once, and events such as exhibitions, where customers are gradually leaving during the event, do not leave at the same time. It may be an event. Or it may be a type of event whose end time is determined by the progress of the competition in sports such as baseball. Also, the number of people held varies depending on the size of the event venue and the content of the event, and the degree of occurrence of traffic jams after the event will also vary. Therefore, the occurrence of traffic jams varies depending on the type and scale of such events, so by acquiring probe information of past events that reflect the traffic situation, the occurrence of traffic jams when equivalent events are held Can be predicted more accurately.

  Next, data processing performed based on collected probe information will be described. As shown in FIG. 5, the control device 15 (data processing unit 15 a) first searches the probe DB (database) in the probe information storage unit 18 to detect traffic congestion from parking lots around the target event venue. A vehicle trajectory is extracted until the vehicle exits on a non-road (A1). At this time, whether or not the vehicle has reached a road without traffic jam is determined based on whether or not the moving speed of the vehicle has become a certain value or more (A2). Next, the database DB1 is created based on the probe information thus obtained (A3). In this case, the data structure of the database DB1 includes information on the related facility (event venue), information on the date and time of leaving the target vehicle, information on the location of the road without traffic jam, and the time required for the road without traffic jam. Created as information associated with information.

  Next, the control device 15 (data processing unit 15a) searches the event information of the related facility at the time of the delivery from the parking lot ID and the information of the delivery date based on the database DB1 created as described above, and the event Information on the type and number of people is acquired (A4). Next, the database DB2 is created based on the probe information and the map data 21 obtained in this way (A5). In this case, the data structure of the database DB2 includes information on the related facility (event venue), information on the type of event of the related facility, information on the personnel of the event of the related facility, and the location of the road where there is no traffic jam. Information and information on required time to a road with no traffic jam are created as associated information. Here, the database DB2 to be created has a data structure as shown in FIG. 4 (e), for example.

  This makes it possible to estimate the escape time of a traffic jam when a similar event is held. In this information collection process, update processing is performed on the estimation process of the escape time for traffic jams in order to increase reliability by accumulating such information.

  That is, when similar data is generated, it is collected as probe information of the same type of event, and information is added to the database DB2 (A6). When the number of times of accumulation increases, for example, 100 times, 500 times, or 1000 times, the reliability is rated as low, medium, or high depending on the number of times. At this time, if there are multiple update data, out-of-distribution data is excluded as the accumulated data processing, or the average value, mode value, median value, etc. are used for the data that follows the distribution. Alternatively, it can be considered that a plurality of data is handled as effectively processed data. After that, a database DB3 to which reliability data is added is created (A7). The database DB3 is also created with a configuration based on a database having a structure shown in FIG.

  As described above, as the number of times of information collection increases, it can be provided as highly reliable information. Also, by using this database, when the same kind of event is held, if the event venue is designated as the destination, the parking lot existing around this event venue will escape from the traffic jam soon after the event ends. it can.

  Note that the determination of the level indicating the reliability is not limited to the step setting of 100 times, 500 times, and 1000 times, but can be determined with a smaller number of times and can be performed with a larger number of times. Various settings can be made to match the user's actual feeling.

  In the above case, the parking lot is decided, probe information is acquired, event venue and event information is specified based on the collected probe information, and the congestion escape time is estimated from the information. However, such a procedure for collecting information is merely an example, and other procedures for acquiring probe information from a data providing vehicle that moves after the event ends may be considered.

  For example, it is possible to collect probe information of the data providing vehicle 3a that is located in the vicinity of a parking lot that exists in the vicinity from around the end time of the event centering on the event held at each event venue. As a result, it is possible to specify the event venue where the event is held and obtain probe information of parking lots in the vicinity of the event venue, so that it is also possible to estimate the traffic escape time.

  In short, it is possible to accurately estimate the time required to move to a road without traffic congestion by obtaining finely positional information of the data providing vehicle 3a that moves after the event. Therefore, an accurate congestion escape time is estimated by concentrating after the event ends and shortening the information acquisition time interval to about 10 seconds and acquiring it at a high density.

(2) Parking guidance process (when providing service)
Next, processing in the case where an event venue is designated as the destination by the car navigation device 6 from the data requesting vehicle 3b will be described with reference to FIGS. In this case, a request is transmitted from the car navigation device 6 side of the data requesting vehicle 3b, and this is received and transmitted by the information center 1 side.

  First, in the car navigation device 6 of the data requesting vehicle 3b, when the user selects (designates) the event venue as the destination (B1), the control device 7 of the car navigation device 6 uses the event input by the operation switch group 14 The data of the present time together with the data of the venue and the current position of the own vehicle detected by the own vehicle position detection unit 12 is transmitted to the information center 1 side by the communication device 8 (B2).

  On the other hand, the control device 15 of the information center 1 uses the event venue data as the destination received from the car navigation device 6 side to identify the parking lots present in the vicinity as the traffic jam prediction parking lot information storage unit 20. (C1). Here, when there are a plurality of corresponding parking lots, they are read out. Subsequently, the control device 15 calculates an approximate time to reach the event venue from the current position data transmitted from the data requesting vehicle 3b and the event venue data as the destination (C2).

  Next, the control device 15 searches the event information and identifies the event corresponding to the predicted arrival time among the events held at the destination event venue where the driver of the data requesting vehicle 3b is about to go. Then, information on the end time of the event is acquired (C3). Subsequently, for the parking lots around the destination event venue obtained by the previous search, the control device 15 takes the time from the time of departure before and after the event to the time when the vehicle exits on a road without traffic jam (traffic congestion escape time). Is calculated (C4). Here, the control device 15 searches the database of the traffic jam prediction parking lot information storage unit 20 for information when the same type of event is held, and calculates the traffic escape time by referring to the database.

  Next, the control device 15 selects a parking lot that can be quickly exited on a road with no traffic jam based on the data of the traffic jam escape time obtained as described above for the parking lot existing around the event venue as the destination. The actual final destination is determined (C5). Subsequently, the route from the current position to the parking lot determined as the final destination by the data requesting vehicle 3d is searched (C6), and information on the obtained route is transmitted to the data requesting vehicle 3b by the communication device 16 (C7). .

  In the car navigation device 6 of the data requesting vehicle 3b, the control device 7 displays the received route information received from the communication device 8 on the screen (B3). As a result, if the user (driver) of the data requesting vehicle 3b designates the event venue as the destination, the user can quickly escape from the traffic jam at the end of the event corresponding to the event to be held at the current event venue. Information on the parking lot can be acquired, and the route to the parking lot is guided by the car navigation device 6, so that the user can smoothly move to the home or the next destination.

  In this case, as the parking lot data provided from the information center 1 side, the above-described data indicating the level of reliability can be added and sent, and the car navigation device 6 of the data requesting vehicle 3b can be trusted by the display device 10. The level information may also be displayed. This level of display allows the user to recognize the degree of data accumulation.

  When specifying an event venue as a destination, it is possible to set up to the next destination of the event venue. This is because it may be necessary to move to the next destination quickly after participating in the event at the event venue. In some cases, even if the traffic escape time is short, it is opposite to the next destination. In this case, the time loss is reduced. In this case, the parking lot information is provided so that the time is shortened when searching for a route when moving from the event venue to the next destination.

  In addition, as described above, the information center 1 side performs the route search to the parking lot and provides it to the data requesting vehicle 3b. However, the information center 1 side does not limit the location information of the parking lot. Information on the traffic escape time may be transmitted to the data requesting vehicle 3b side, and a route search from the current position to the parking lot may be performed by the car navigation device 6 on the data requesting vehicle 3b side.

(3) Specific Example Next, a specific example of designating an event venue will be described with reference to FIGS. FIG. 8 shows a case where “facility X”, which is a dome stadium, is designated as the destination event venue from the car navigation device 6 of the data requesting vehicle 3b.

  There are three parking lots A, B, and C around the “facility X”. In the information center 1, as shown in FIG. Information is collected from 3a as described above. As a result, a result as shown in FIG. 9B is obtained. That is, for example, when a baseball game is held as an event, the escape time (traffic congestion escape time) from each of the parking lots A, B, C to a road without traffic jam is 12 minutes, 5 minutes, 10 minutes. The prediction information is obtained.

  Then, when “facility X” is designated as the destination from the car navigation device 6 of the data requesting vehicle 3b, the information center 1 side creates a list as shown in FIG. This list is a list of traffic escape times obtained by the data collection process for the parking lots A to C existing around the “facility X” as the event venue. The congestion escape time is the travel time from leaving the parking lot to getting on a road without traffic jams.

  In this list, the parking lot B is farthest from the “facility X” at 400 m, but the congestion escape time is as short as 5 minutes. In this case, it can not be said that the congestion escape time is short because the distance from the “facility X” is long, and the parking lot A is the closest, but the congestion escape time is shorter than the parking lot B located farther than this. . Also, considering the time to walk from the event venue to the parking lot, the user also considers the travel time from the “facility X” to the parking lot. Therefore, it is also effective to display the time as a total traffic escape time considering the travel time by walking.

  Here, as shown in FIG. 8 (b), each parking lot A to C shows the position, the congestion escape time, and its route. In the information center 1, this information is directly used as the data requesting vehicle 3b. The information may be displayed by transmitting to the vehicle, or only the information of the parking lot B having the shortest traffic escape time may be transmitted. Moreover, about the information of the distance of three parking lots AC and traffic congestion escape time, you may make it show data in order of distance, and may show data in order of traffic congestion escape time. Furthermore, as described above, it may be displayed as the traffic jam escape time including the travel time from the event venue to the parking lot. Further, the display of these can be switched according to the selection setting of the user.

  When only the shortest parking lot B is displayed, the route search result may be displayed at the same time. When a plurality of parking lots are displayed, a route search may be performed after selection by the user and displayed.

  As described above, according to the present embodiment, the position from the data providing vehicle 3a when the event is actually performed to estimate the traffic escape time from the parking lot that exists in the vicinity for each event venue. Since the travel situation is collected as probe information based on the information, and the congestion escape time at the end of the corresponding event of the same type is estimated corresponding to the type of event and the exit pattern, the data requesting vehicle 3b The user of the navigation device 6 can set a parking lot with a short time to exit on a road without traffic jam (traffic escape time) as a destination based on highly reliable information.

  Estimate the escape time of traffic jams by collecting location information from the data providing vehicle 3a located around the event venue, estimating the travel time between road intersections, and the route from the parking lot to the road without traffic jams Therefore, a method according to the route search method can be applied, and a special calculation method is not required.

  In addition, when there are many data providing vehicles 3a as infrastructure and a large number of data can be obtained, it is possible to estimate the traffic escape time by obtaining the tracking data of the data providing vehicle 3a leaving the target parking lot. it can.

  Furthermore, since the above-mentioned traffic escape time data is collected and updated every time an event is held, the parking lot can always be guided based on information corresponding to the latest actual situation.

  When collecting probe information as described above, unlike the case of collecting information such as VICS, it is performed at a high frequency, so that the accuracy of data processing can be improved and the estimation of the escape time of traffic congestion can be performed accurately. . In this case, the information acquisition frequency is preferably set in the range of 2 to 30 seconds, and more preferably set in the range of 5 to 10 seconds. Moreover, it is good also as a fixed acquisition time interval, and it is good also as a variable acquisition time interval as needed.

  The event type is classified in consideration of the exit pattern at the end and the size of the number of people leaving, and estimated by assuming the traffic escape time caused by the difference between them, and when the actual event is held, the event type is the same type By referring to the escape time of a traffic jam, more accurate estimation can be performed.

  On the data requesting vehicle 3b side, the car navigation device 6 can specify the event venue and also set the next destination, so that it can efficiently move to the next destination after the event, and escape from the traffic jam. It is possible to guide a short parking lot, improving usability.

  The data providing vehicle 3a and the data requesting vehicle 3b are equipped with the car navigation device 6 and provide information as the data providing vehicle 3a at the end of the event. When the own vehicle moves to the event venue, the data requesting vehicle 3b has information. In addition to providing and receiving information unilaterally, it can function as a system that can benefit from providing each other.

  In addition, this invention is not limited only to one embodiment mentioned above, It can apply to various embodiment in the range which does not deviate from the summary, For example, it can deform | transform or expand as follows. .

  In the above embodiment, the time until the vehicle travels from the parking lot to a road without traffic jams is the traffic jam escape time, but there are many parking lots in the parking lot and it is assumed that it takes time to move within the venue. May estimate the movement time in the parking lot by data processing and add it, and add this to the traffic jam escape time to estimate.

  In the drawings, 1 is an information center (parking lot guidance device), 3a is a data providing vehicle (information providing vehicle), 3b is a data requesting vehicle (information requesting vehicle), 5 is an external information source, and 6 is a car navigation device (route search). Device), 7 is a control device, 8 is a communication device, 10 is a display device (display setting means), 12 is a vehicle position detection unit, 15 is a control device (facility information collection means, vehicle information collection means, congestion escape time estimation) Means 16, a communication device, 17 a communication device, 18 a probe information storage unit, 19 an external information storage unit, and 20 a traffic jam prediction parking information storage unit.

Claims (12)

When the event venue is designated as the destination, in the parking lot guidance device that guides the parking lot that exists around the designated event venue,
Facility information collection means for collecting information on the event venue, information on parking lots existing around the event venue, and information on events held at the event venue from an external information source;
A communication device for receiving movement information from the information providing vehicle;
Vehicle information collecting means for receiving and collecting movement information transmitted from the information providing vehicle existing around the event venue after the event is held at the event venue by the communication device;
Based on the movement information of the information providing vehicle collected by the vehicle information collecting means, it is determined that the moving speed of the information providing vehicle has reached a certain value or more, and the vehicle has no traffic jam. Among them, the vehicle trajectory from the parking lot around the event venue to the road without traffic congestion is extracted and acquired as probe information, the event venue and event type information are associated and stored in the database, Based on the information accumulated in the database, a traffic jam escape time estimation means for estimating the time required to move from a parking lot around the event venue to a road without traffic jam after the event ends, as a traffic jam escape time;
When the event venue is designated as a destination, the event to be held is identified from the event information collected by the facility information collection means, and when there are a plurality of parking lots around the event venue, A parking lot information apparatus comprising a parking lot information guidance means for guiding a parking lot with a short traffic escape time. In the parking lot guidance apparatus according to claim 1,
The traffic jam escape time estimating means estimates a travel time between road intersections around the event venue based on position information received from the information providing vehicle, and thereby estimates a traffic jam escape time from the parking lot. A parking lot guidance device characterized by that. In the parking lot guidance apparatus according to claim 1,
The vehicle information collection means collects movement information transmitted from the information providing vehicle that exits a parking lot existing around the event venue for collecting the movement information. In the parking lot guidance device according to any one of claims 1 to 3,
The vehicle information collection means collects movement information from the information providing vehicle at intervals of 2 to 30 seconds. In the parking lot guidance device according to any one of claims 1 to 4,
The vehicle information collection means divides information collection from the information providing vehicle after the event of the surrounding parking lot corresponding to the event venue into types according to the scale of the event to be held and the exit pattern at the end. Done,
The traffic jam escape time estimating means estimates the traffic jam escape time according to the type of the event. In the parking lot guidance apparatus according to claim 5,
The vehicle information collection means collects movement information by classifying into at least two patterns of a pattern that is expected to leave at a time and a pattern that is expected to gradually leave before the end as the exit pattern at the end of the event. A parking lot guidance device characterized by that. In the parking lot guidance device according to any one of claims 1 to 6,
The parking lot information guide means guides a plurality of surrounding parking lots together with information on estimated escape times of traffic to an event venue designated as a destination. In the parking lot guidance device according to any one of claims 1 to 7,
The traffic jam escape time estimation means includes a traffic jam escape time database, and estimates and stores the traffic jam escape time according to an event held. In the parking lot guidance device according to any one of claims 1 to 8,
When the next destination is designated as the destination in addition to the event venue,
The parking lot information guidance means, when there are a plurality of parking lots around the event venue, guides the parking lot with a short traffic escape time to the next destination. apparatus. A route search device using the parking lot guidance device according to claim 1,
A communication device for transmitting destination information to the parking lot guidance device and receiving the parking lot information;
A route search device comprising route search means for searching for a route using a parking lot included in the received parking lot information as a destination. The route search device according to claim 10, wherein
When a plurality of parking lots are included in the parking lot information received by the communication device, a display setting unit is provided for displaying them on a map and displaying any one of the parking lots as a destination. A route search device characterized by the above. The route search device according to claim 10 or 11,
In addition to the designation of the destination, a route search apparatus comprising destination designation means capable of designating a next destination.

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