JP2012003391A - Charging reservation server, charging reservation system, charging reservation method, and charging reservation program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase use efficiency of a charging stand where charging to a storage battery mounted on an electric vehicle is performed.SOLUTION: A charging reservation server according to an embodiment includes: a travel distance calculation part for calculating travelable distance of a vehicle from vehicle information of the vehicle, which is received by an antenna and announced through a communication network, and residual capacity information of a storage battery of the vehicle; a charging stand retrieval part for retrieving a charging stand within the travelable distance from the travelable distance and position information showing a position where communication with the vehicle announced by the communication network is performed; and a charging stand reservation part for selecting an optimal charging stand from charging stands within the travelable distance to make a reservation.

Description

  Embodiments described herein relate generally to a charge reservation server, a charge reservation system, a charge reservation method, and a charge reservation program.

  An electric vehicle is a vehicle that uses electric power supplied from a storage battery as a power source. When the electric power supplied from these storage batteries, that is, the remaining capacity of the storage battery runs out, the electric vehicle stops. Therefore, it is necessary to charge using a charging stand etc. before the capacity of the storage battery runs out.

JP 2007-148590 A

  Here, the number of charging stations that can be installed is limited, and in some cases, it is conceivable that the user of the electric vehicle waits for charging. However, installing a sufficient number of charging stations so that no waiting time occurs for all automobiles is limited from the viewpoint of securing the installation location and from an economical viewpoint. Therefore, the charging station waiting time is expected to occur.

  Therefore, the purpose of the charge reservation server, the charge reservation system, the charge reservation method, and the program according to the present embodiment is to appropriately reserve and guide the charging station and reduce the waiting time of the charging station.

The charge reservation server of this embodiment is
A travel distance calculation unit that calculates the travelable distance of the vehicle from the vehicle information of the vehicle received by the antenna and notified via the communication network, and the remaining capacity information of the storage amount of the vehicle;
A charging station search unit for searching for a charging station within the driving distance from the driving distance and position information of a position that communicated with the vehicle notified from a communication network;
A charging station reservation unit that selects and reserves an appropriate charging station from the charging stations within the travelable distance, and
It is characterized by having.

Moreover, the charge reservation system of this embodiment is
A charging reservation system comprising a vehicle including a storage battery, and the management server and a management server connected to the vehicle via an antenna and a communication network,
The server
Vehicle information of the vehicle received by the antenna and notified via the communication network, and a travel distance calculation unit that calculates a travelable distance of the vehicle from the remaining capacity information of the storage amount of the vehicle;
A charging station search unit for searching for a charging station within the driving distance from the driving distance and the antenna position information of the antenna that communicated with the vehicle notified from a communication network;
A charging station reservation unit that selects and reserves an appropriate charging station from the charging stations within the travelable distance, and
With
The car is
A storage amount detection unit for detecting a storage amount of the vehicle;
The vehicle information storage part which memorize | stores the vehicle information of the said motor vehicle is provided.

Moreover, the charge reservation method of this embodiment is
A charging reservation system comprising a vehicle provided with a storage battery, a management server connected to the management server via an antenna installed on a predetermined road and a communication network,
From the vehicle information of the vehicle received by the antenna and notified via the communication network and the remaining capacity information of the storage amount of the vehicle to calculate the travelable distance of the vehicle,
Search for a charging station within the travelable distance from the travelable distance and the antenna position information of the antenna that communicated with the vehicle notified from the communication network,
From a charging station within the travelable distance, select an appropriate charging station and make a reservation,
It is characterized by that.

Moreover, the charge reservation program of this embodiment is
Vehicle information of the vehicle received by the antenna and notified via the communication network, and a calculation process for calculating the travelable distance of the vehicle from the remaining capacity information of the storage amount of the vehicle;
A search process for searching for a charging station within the travelable distance from the travelable distance and antenna position information of an antenna that has communicated with the automobile notified from a communication network;
Reservation processing for selecting an appropriate charging station from the charging station within the travelable distance and making a reservation;
Is operated on a server.

The block diagram of the charge reservation system which concerns on 1st Embodiment. The block diagram at the time of utilizing the program of the charge reservation system which concerns on 1st Embodiment. The flowchart which shows operation | movement of 1st Embodiment. The flowchart which shows operation | movement of 2nd Embodiment. The block diagram which shows the structure of the charge reservation system which concerns on 3rd Embodiment. The flowchart which shows operation | movement of 3rd Embodiment. The flowchart which shows the modification of 3rd Embodiment. The flowchart which shows the modification of 3rd Embodiment. The block diagram which shows the structure of the charge reservation system which concerns on 4th Embodiment. The flowchart which shows operation | movement of 4th Embodiment. The flowchart which shows operation | movement of 5th Embodiment. The block diagram which shows the structure of the charge reservation system which concerns on 6th Embodiment. The flowchart which shows operation | movement of 6th Embodiment. The block diagram which shows the structure of the charge reservation system which concerns on 7th Embodiment. The flowchart which shows operation | movement of 7th Embodiment. The block diagram which shows the structure of the charge reservation system which concerns on 8th Embodiment. The flowchart which shows operation | movement of 8th Embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS.

(First embodiment)
The charge reservation system according to the first embodiment will be described with reference to FIGS.

  As shown in FIG. 1, the charging reservation system according to the present embodiment includes a management server 10, a communication network 1, a plurality of antenna units 20, and an automobile 30. In addition, the management server 10 and the antenna unit 20 are connected via the communication network 1 so that the antenna unit 20 and the automobile 30 can perform wireless communication.

  The communication network 1 is a network capable of mutual communication. In this embodiment, the network 1 is a wired communication network such as a network such as a LAN or an intranet, but can be replaced with a wireless communication network.

  The management server 10 includes an arithmetic processing unit 100, a storage unit 110, a communication unit 120, a display unit 130, and an input unit 140. The management server 10 in the present embodiment includes a display unit 130 and an input unit 140, but input / output to the server is installed outside via a serial line (not shown) or the communication network 1. Also good.

  The arithmetic processing unit 100 includes an information registration unit 101, a travel distance calculation unit 102, a charging station search unit 103, and a charging station reservation unit 104.

  The information registration unit 101 registers information necessary for various calculations in various databases (DB) 111 to 115. In the present embodiment, the vehicle information received via the communication unit 120 is stored in the vehicle information DB 111, the remaining capacity of the storage amount is stored in the storage amount information DB 112, the antenna position is stored in the antenna position information DB 113, and the charging station information is stored in the charging station information DB 114. Then, information such as charging station reservation is registered and stored in the reservation information DB 115.

  The travel distance calculation unit 102 calculates a travelable distance of the automobile. In the present embodiment, from the vehicle information of the vehicle 30 sent via the antenna unit 20 and the stored amount information that is the remaining capacity of the battery, the point where the information is received (the region where each antenna unit 20 can wirelessly communicate with the vehicle 30 Is calculated from the predetermined point). In this embodiment, since the position information of each antenna unit 20 is used as the position of the automobile 30, the position detection accuracy can be increased as compared with the case of using GPS (Global Positioning System). Furthermore, unlike GPS position measurement when a car is traveling on a highway, there is an advantage that confusion is unlikely to occur when there is a side road on the highway.

  The charging station search unit 103 extracts charging station candidates installed within the drivable distance from the installation location of the received antenna and the drivable distance calculated by the travel distance calculator 102. Next, search is made for rechargeable charging station information that has a reservation in the extracted charging stations. If there is no space, the search may be performed again. Further, when the antenna unit 20 is continuously installed on the roadside or the like, the charging station search process may be performed again at the next antenna, so the process may be ended as it is.

  The charging station reservation unit 104 selects and reserves a charging station from the reservable charging station information. Various algorithms are used to select the charging station. For example, if there is only one charging station within the travelable distance, the charging station is reserved. If the reservation could not be made, that is, if there is no reservable charging station within the travelable distance, the vehicle 30 is notified and guided to go to one of the charging stations within the travelable distance. Also good.

  The storage unit 110 is a database (DB) having a configuration including an automobile information DB 111, a storage amount information DB 112, an antenna position information DB 113, a charging station information DB 114, and a reservation information DB 115. Each DB is a medium for storing data, and various storage media such as generally used disk devices, optical disk devices, and semiconductor memories can be used. These storage media may be used for temporary storage.

  The automobile DB 111 stores the vehicle type of the automobile 30, the average running distance corresponding to the remaining capacity and speed of the storage amount for each vehicle type, and other necessary information necessary for calculating the travelable distance. For example, the average travel distance is a distance corresponding to the remaining amount of each storage amount, assuming that the vehicle travels at a speed limit such as an expressway or a vehicle-only road. Moreover, when traffic congestion has occurred in the vicinity of the position of the received antenna unit 20, the average travel distance corresponding to each power storage amount during low-speed travel may be used. In addition, when using the owner of an automobile or an ETC card, the user information of the card may be stored.

  The storage amount information DB 112 stores the storage amount sent from the automobile 30. The charged amount may be a charge amount, or the battery capacity may be stored as a percentage.

  The antenna position information DB 113 stores position information of each antenna unit 20. For example, it may be latitude / longitude information of each antenna unit 20, or may be a number corresponding to a position given in advance.

  The charging station information DB 114 stores position information of the charging station. For example, information on the number of charging stations in the service area of an expressway.

  The reservation information DB 115 stores reservation information for charging stations. For example, information such as which vehicle or user has reserved which charging station. The charging station reservation information also stores information such as how many reservations are made at each charging station in the service area.

  The communication unit 120 is connected to the communication unit 320 of the automobile 30 via the communication network 1 and the antenna unit 20, and transmits and receives various information.

  The display unit 130 is a display screen that displays information stored in various DBs.

  The input unit 140 is used to input various information. For example, a keyboard.

  The antenna unit 20 is an antenna that performs various road-vehicle communications. It is assumed that they are arranged on the road at regular intervals. In addition, position information is set for each antenna. In this embodiment, the vehicle 30 is connected by wireless communication, and the management server 10 is connected via the network 1. For example, the antenna unit 20 includes narrowband communication such as a DSRC antenna, but any other antenna that can communicate with the automobile 30 may be used.

  The electric vehicle 30 includes a calculation processing unit 300, a communication unit 320, a display unit 330, and an input unit 340. In addition, you may have a database which memorize | stores various data.

  The arithmetic processing unit 300 includes a storage amount detection unit 301 and an automobile information storage unit 302. Perform other necessary computations.

  The storage amount detection unit 301 detects the storage amount of the automobile 30. The actual storage amount may be detected by quantification, or may be expressed as a percentage as a ratio of the storage amount to the maximum storage amount of the storage battery loaded on the automobile 30.

  The car information storage unit 302 stores various car information. For example, vehicle type information, car owners, and the like. Further, information such as the maximum power storage amount of the battery to be loaded, the traveling speed, and the amount of power used for each traveling speed may be stored.

  The communication unit 320 is connected to the communication unit 120 of the management server 10 via the antenna unit 20 and the communication network 1 and transmits and receives various types of information.

  The display unit 330 is a display screen that displays reservation information, charging station information, a map, and the like. A selection screen for whether or not to make a reservation may be output. In the present embodiment, the medium is displayed as an image or the like. However, other output functions, for example, an audio output unit by audio output may be used.

  The input unit 340 is used for inputting various information. For example, a button or a touch panel. Further, the input signal may be obtained by recognizing a voice uttered by a driver of the automobile 30 or the like.

  As shown in FIG. A, the information registration unit 101 is an information registration program, the travel distance calculation unit 102 is a travel distance calculation program, the charging station search unit 103 is a charging station search program, and the charging station reservation unit 104 is a charging station reservation program. There may be.

  In the present embodiment, the position information of the antenna 20 is used. However, even if the GPS position information obtained by the car navigation system is sent to the management server side, the travel distance calculation unit 102 similarly calculates the travelable distance. can do.

  Next, the operation of the first embodiment will be described with reference to FIG.

  FIG. 2 is a flowchart showing the operation of the first embodiment.

  First, the automobile 30 enters a predetermined road where the antenna unit 20 is installed.

  Next, when communication is established between the antenna unit 20 and the communication unit 320 installed at predetermined intervals in a predetermined road, the automobile 30 is detected by the storage amount detection unit 301 via the communication unit 320. The information regarding the amount of stored electricity and the vehicle stored in the vehicle information storage unit 302 is transmitted to the antenna unit 20 (S101).

  The management server 10 receives the transmitted information by the communication unit 120, and stores information on the vehicle in the vehicle information DB 111 and information on the storage amount in the storage amount information DB 112. The received position information of the antenna unit 20 is stored in the antenna position information DB 113 (step S201).

  The travel distance calculation unit 102 calculates a travelable distance from the vehicle information of the vehicle 30 stored in the vehicle information DB 111 and the storage amount information DB 112 and the storage amount information that is the remaining battery capacity. The charging station search unit 103 collates the charging station candidate that can be reached by the vehicle with the information in the charging station information DB 114 from the calculated travelable distance and the position information of the antenna unit 20 that communicated with the vehicle 30. And extract. For example, the distance from the remaining capacity of the storage battery when traveling at 100 km / h on an expressway is calculated. In addition, when there is traffic jam information at the position of the antenna unit 20, the travelable distance may be calculated from the remaining capacity of the storage battery when traveling at a speed of 10km per hour, or the average travel distance is calculated regardless of other speeds Alternatively, the method may be used (step S202).

  In this embodiment, the charging station is searched using the antenna position information, but position information such as GPS may be used.

  Subsequently, the charging station search unit 103 determines whether or not there is an empty charging station from the extracted candidates. Note that whether or not there is a free charging station is not the actual maximum number of charging stations, but a certain threshold value may be provided. For example, if there are actually 100 charging stations in one area, the number of reservations is 60, and if the number of reservations reaches 60, there is no reservation space. An algorithm for determination may be used. In addition, when there is only one extracted charging station candidate, it may be possible to make a reservation even if the number of reserved 60 units is determined. If there is no space, search again. Further, if there is no rechargeable charging station within the travelable distance, it may be terminated as it is (step S203).

  The charging station reservation unit 104 automatically reserves a charging station from among charging stations that are available. As for an algorithm as to whether or not to select which charging station when there are a plurality of extracted charging stations, for example, as a result of comparison with the travelable distance of the automobile 30 to which information has been sent, A certain charging station may be selected, or a charging station with the smallest number of reservations may be selected. These reservation information is stored in the reservation information DB 115 and notified to the automobile 30.

  In the present embodiment, automatic reservation is described, but reservation confirmation may be made as to whether or not to make a reservation to the driver of the automobile 30 instead of automatic reservation. For example, reservation confirmation may be performed by a voice recognition function that performs input by human voice such as a driver, or reservation may be actually determined by operating a touch panel of the input unit 340 (step S204). .

  As described above, according to the present embodiment, the remaining amount information of the storage battery (battery) mounted on the vehicle is transmitted to the management server 10 via the antenna unit 20, and a plurality of distances are estimated from the estimated travelable distance. Reservation and guidance of the optimal charging station for the vehicle 30 can be performed. In this way, it is possible to allocate vehicles taking into consideration the storage capacity of a plurality of automobiles, and it is possible to avoid fullness of the charging station. It also contributes to systematic arrangements such as the installation of charging stations by referring to the reservation status. In addition, it is possible to prevent the vehicle from stopping due to the battery running out on the road, and to improve safety.

  Further, when a narrowband communication antenna such as each DSRC is used, it is not necessary to calculate the position of the automobile 30 by using the position information of the antenna unit 20, thereby reducing the calculation processing of the management server 10. Can be done quickly. In addition, the position of the automobile 30 can be specified with high accuracy. This is because, for example, in an expressway, it may be possible to prevent confusion between positions that are likely to occur when there is an expressway and its side roads.

(Second Embodiment)
In the present embodiment, the charging station reservation unit 104 of the first embodiment further reserves and guides charging stations other than the service area, except for the car 30 that has no charging station within the only travelable distance. This is an embodiment having a function.

  The operation of this embodiment will be described with reference to FIG.

  First, the automobile 30 enters a predetermined road where the antenna unit 20 is installed, and the storage information of the automobile 30 is transmitted to the management server via the antenna unit 20 and the communication network 1. The management server 10 receives the received vehicle information (step 301, step S401).

  Next, a travelable distance is calculated by the travel distance calculation unit 102, and a charging station within the travel distance is detected by the charging stand search unit 103 (step 402).

  Next, the charging station search unit 103 determines whether or not there is an empty charging station. (Step S403). If there is no space, the process may be terminated as it is, or a re-search process may be performed.

  When there is a vacancy, the charging station reservation unit 104 further determines whether there is one selected charging station.

  When the selected charging station is one, automatic reservation of the latest charging station is performed and the vehicle 30 is notified. Or reservation confirmation may be performed (step S406, step S302).

  If there are one or more selected charging stations, an automatic reservation other than the most recent charging station is performed and the vehicle 30 is notified. Alternatively, reservation confirmation is performed (step S405).

  In this way, by making the reservation of the charging station other than the nearest charging station, it is possible to preferentially make reservation for an automobile with a small remaining capacity of the storage battery. Moreover, smooth reservation / guidance can be provided for more automobiles, which is more preferable.

(Third embodiment)
A third embodiment will be described with reference to FIGS.

  The difference from the first embodiment is that the arithmetic processing unit 100 includes a reservation determining unit 105 as shown in FIG.

  The reservation determination unit 105 determines whether or not the automobile 30 that has communicated with the antenna unit 20 has made a reservation for any one charging station. In the present embodiment, it is determined whether or not a reservation has been made by comparing the reservation information of the automobile 30 stored in the reservation information DB 115 with the reservation information sent from the automobile 30 via the antenna unit 20.

  Next, the operation of the third embodiment will be described with reference to FIGS.

  A significant difference from the first embodiment is step S602.

  First, the automobile 30 enters a predetermined road where the antenna unit 20 is installed, and the storage information of the automobile 30 is transmitted to the management server via the antenna unit 20 and the communication network 1. The management server 10 receives the received vehicle information (step S501, step S601).

  Next, the reservation determination unit 106 collates the vehicle information of the vehicle 30 that has sent the information with the reservation information stored in the reservation information DB 115 before that (step S602).

  If it is determined that a reservation has already been made for the automobile 30 (step 602-NO), the series of operations is terminated.

  When it is determined that the reservation status has not yet been made (step S602—YES), the travelable distance is calculated by the travel distance calculation unit 102, and the charging station within the travel distance is detected by the charging station search unit 103. (Step S603, Step S603).

  Next, the charging station search unit 103 determines whether or not there is an empty charging station. (Step S604). If there is no space, the process may be terminated as it is, or a re-search process may be performed.

  If there is a vacancy, the charging station reservation unit 104 automatically reserves the charging station and notifies the automobile 30 of it. Or reservation confirmation may be performed (step S605, step S502).

  Further, instead of the reservation confirmation work of the reservation determination unit 106 described above, a determination unit that determines whether or not the charging rate of the storage battery is sufficient as shown in FIG. 5 may be used. For example, in step S602, if the charged amount is equal to or greater than a preset threshold value, the process may be terminated as it is, and the operation after step S603 may be performed only when the charged amount is equal to or less than the threshold value. Moreover, as shown in FIG. 6, it is good also as a determination part which determines whether it replaced with the reservation confirmation operation | work or it passed the reserved charging stand. For example, when the vehicle passes a service area with a reserved charging station on an expressway, a re-search process (operation after step S603) is performed.

  As described above, when the management server 10 already has reservation information for the vehicle, the storage capacity is sufficient, the charging reservation stand is passed, or the highway toll booth is exited, the charging station search process is performed. do not do. Therefore, the number of automobiles 30 that need to be subjected to the reservation search guidance process is reduced, and the calculation processing burden on the management server 10 can be reduced. In addition, it is possible to prevent duplicate reservations in advance and to provide a smooth reservation system for more vehicles.

(Fourth embodiment)
A fourth embodiment will be described with reference to FIGS.

  A significant difference from the first embodiment is that the arithmetic processing unit 100 includes a charging station information providing unit 106 as shown in FIG.

  The charging station information providing unit 106 provides the charging station position information, reservation status, and the like to the automobile 30 via the communication network 1 and the antenna unit 20. In the present embodiment, position information of the charging station searched based on the transmitted vehicle information is provided. It is preferable that the position of the charging station is informed by highlighting the charging station within the travel distance.

  Next, the operation of the third embodiment will be described.

  The difference from the first embodiment is Step S702 and Step S803.

  First, the automobile 30 enters a predetermined road where the antenna unit 20 is installed, and the storage information of the automobile 30 is transmitted to the management server via the antenna unit 20 and the communication network 1. The management server 10 calculates the travelable distance from the received position information of the antenna unit 20 and the stored power amount information and searches for an empty charging station (steps S701, S801, and S802).

  Next, the charging station information providing unit 106 provides the position, reservation status, etc. of the charging station within the travelable distance to the same vehicle as the automobile 30 that sent the information (step S803).

  The automobile 30 that has received the charging station information sent from the charging station information providing unit 106 displays the information on the display unit 330 (step S702).

  Further, the charging station search unit 103 determines whether or not there is an empty charging station. (Step S804). If there is no space, the process may be terminated as it is, or a re-search process may be performed.

  If there is a vacancy, the charging station reservation unit 104 automatically reserves the charging station (step S805).

  In the present embodiment, automatic reservation is described, but reservation confirmation may be made as to whether or not to make a reservation to the driver of the automobile 30 instead of automatic reservation. For example, the reservation confirmation may be performed by a voice recognition function for inputting by human voice such as a driver, or the reservation may be actually determined by operating the touch panel of the input unit 340 (step S703).

  In this way, by providing the automobile 30 with charging station information within the travelable distance, the driver can be informed of the location of the charging station within the travelable distance. By notifying the charging station within the travelable distance, information other than the reserved charging station can be provided. Further, when making a reservation confirmation, it is possible to expand the driver's options when selecting which charging station, such as whether or not to make a reservation.

(Fifth embodiment)
The fifth embodiment is a modification of the fourth embodiment. The configuration requirements are the same as in the fourth embodiment.

  Next, the operation of the fifth embodiment will be described with reference to FIG.

  The main difference from the fourth embodiment is Step S1005 and Step S902.

  First, the automobile 30 enters a predetermined road where the antenna unit 20 is installed, and the storage information of the automobile 30 is transmitted to the management server via the antenna unit 20 and the communication network 1. The management server 10 searches for an empty charging station from the travel distance calculated based on the received position information of the antenna unit 20 and the storage amount information (step S901, step S1001, and step S1002).

  Further, the charging station search unit 103 determines whether or not there is an empty charging station. (Step S1003).

  Here, when it is determined that there is no available charging station, the charging station information providing unit 106 determines the position of the charging station, the reservation status, and the like within the travelable distance to the same vehicle as the automobile 30 that has sent the information. Provide (step S1004).

  The vehicle 30 that has received the charging station information sent from the charging station information providing unit 106 displays the information on the display unit 330 (step S902).

  When it is determined that the charging station is available, the charging station reservation unit 104 performs automatic reservation of the charging station (step S1005).

  In the present embodiment, automatic reservation is described, but reservation confirmation may be made as to whether or not to make a reservation to the driver of the automobile 30 instead of automatic reservation. For example, the reservation confirmation may be performed by a voice recognition function for inputting by human voice such as a driver, or the reservation may be actually determined by operating the touch panel or the like of the input unit 340 (step S903).

  As described above, even when the charging station cannot be reserved, the charging station information that is within the travelable distance is provided to the vehicle 30 so that the driver can find the location of the charging station within the travelable distance. And you can inform the reservation status.

(Sixth embodiment)
A sixth embodiment will be described with reference to FIGS.

  The main difference from the first embodiment is that the arithmetic processing unit 100 includes a reservation information deleting unit 107 as shown in FIG.

  The reservation information deleting unit 107 deletes reservation information stored in the reservation information DB 115.

  The operation of the sixth embodiment will be described with reference to FIG.

  First, the automobile 30 leaves the charging stand. An antenna unit 20 is installed at the outlet of the charging stand, and is sent to the communication unit 120 via the antenna unit 20. And the vehicle information, storage battery information, etc. of the motor vehicle 30 are transmitted to the arithmetic processing unit via the communication network 1 and the communication unit 120 (step S1101, step S1201).

  Next, the charging station information deletion unit 106 determines whether or not the amount of power stored in the vehicle 30 that has sent the information is sufficient. If it is sufficient, the charging station reservation is deleted (steps S1202 and S1203).

  If it is determined that it is not sufficient, that is, it is insufficient, a reservation search operation is performed in the same manner as in steps S202 to S204 shown in the first embodiment (step S1204 to step S1206), and automatic reservation or reservation confirmation is performed. This is performed (step S1102).

  As described above, the storage capacity of the storage unit 110 in the management server 10 is deleted by deleting the reservation of the charging station for vehicles that have been charged more than a certain amount and not deleting the vehicles that have not been charged more than a certain amount. Can be reduced. That is, for a vehicle that has not been charged until the amount of stored electricity reaches a certain level or more, it is possible to delete the reservation at the charging station and perform a new reservation search process without newly registering information via the antenna unit 20. The burden of arithmetic processing is also reduced.

  The maximum effect can be achieved by combining this system with FIG. 5 of the second embodiment. This is because, for a vehicle with a sufficient amount of power storage, it is not necessary to delete the registered automobile information from the database and perform the reservation search process, so that the burden on the server is reduced.

(Seventh embodiment)
A seventh embodiment will be described with reference to FIGS.

  The difference from the first embodiment is that the automobile 30 includes a mileage calculation unit 102 included in the management server 10 in the first embodiment as shown in FIG. In addition, the information communicated between the management server 10 and the car 30 only needs to include information that can identify the car.

  Regarding the operation of the seventh embodiment, the travelable distance calculated by the travel distance calculated in the arithmetic processing unit 30 in the car 30 and the car information are transmitted to the management server 10 (step S1301).

Thereafter, as shown in FIG. 11, reservation search processing is performed (steps S1401 to S1404, step S1302).
In the present embodiment, only the mileage calculation unit is transferred from the management server side to the vehicle 30, but the charging station search function is also provided to the vehicle 30 and only the charging station reservation process is performed by the management server 10. May be.

  By performing the arithmetic processing in the vehicle 30 in this way, it is not necessary for the management server 10 to calculate the travel distance, and the burden on the server is reduced.

(Eighth embodiment)
The eighth embodiment will be described with reference to FIGS. 16 and 17.

  The difference from the first embodiment is that the charging stand is read as a battery. That is, instead of reserving a charging stand for charging a storage battery mounted on the automobile 30, a storage battery for replacement that has been charged in advance is reserved.

  As shown in FIG. 14, the charging reservation system according to the present embodiment includes a management server 10, a communication network 1, a plurality of antenna units 20, and a car 30. In addition, the management server 10 and the antenna unit 20 are connected via the communication network 1 so that the antenna unit 20 and the automobile 30 can perform wireless communication.

  The communication network 1 is a network capable of mutual communication. In this embodiment, the network 1 is a wired communication network such as a network such as a LAN or an intranet, but can be replaced with a wireless communication network.

  The management server 10 includes an arithmetic processing unit 100, a storage unit 110, a communication unit 120, a display unit 130, and an input unit 140.

  The arithmetic processing unit 100 includes an information registration unit 101, a travel distance calculation unit 102, a replacement storage battery search unit 108, and a replacement storage battery reservation unit 109.

  The information registration unit 101 registers information necessary for various calculations. In the present embodiment, information such as vehicle information, power storage amount, antenna position, replacement storage battery information, replacement storage battery reservation, etc. received via the communication unit 120 is registered. The exchange storage battery means a storage battery that exchanges with a storage battery mounted on an automobile.

  The travel distance calculation unit 102 calculates a travelable distance of the automobile. In the present embodiment, the travelable distance from the point where the information is received (installation position of the antenna unit 20) from the vehicle information of the vehicle 30 sent via the antenna unit 20 and the storage amount information that is the remaining capacity of the battery. Is calculated. In the present embodiment, the travel distance calculation unit 102 is on the management server side, but may be provided in the calculation unit of the automobile 30.

  The replacement storage battery search unit 108 replaces the replacement location such as a storage battery stand or the replaceable replacement storage battery within the travelable distance from the antenna installation location where the information is received and the travelable distance calculated by the travel distance calculation unit 102. Extract candidates. Next, searchable replacement storage battery information is retrieved from the extracted replacement locations or replacement storage batteries. If there is no vacancy, the search may be performed again. However, if there are a plurality of antenna units 20, the next antenna may be used. You may end as it is.

  The replacement storage battery reservation unit 109 selects and reserves a storage battery from the storage battery information that can be reserved. Various algorithms are used to select the stored value. For example, if there is only one replacement storage battery within the travelable distance, the replacement storage battery is reserved. When the reservation cannot be made, the vehicle 30 may be notified and guided to go to the storage battery replacement place. In addition, if the number of reserved batteries (occupancy rate) reaches a certain ratio or more than the number of reserved batteries in one area, select a car that has only one replacement battery within the cruising range. Except for this, a function of reserving and guiding a replacement storage battery in another replacement place may be provided. In this case, smooth reservation / guidance can be provided for even more cars.

  The storage unit 110 is a database (DB) having a configuration including an automobile DB 111, a storage amount information DB 112, an antenna position information DB 113, a replacement storage battery information DB 118, and a replacement storage battery reservation information DB 119.

  The automobile DB 111 stores the vehicle type of the automobile 30, the average running distance corresponding to the remaining capacity and speed of the storage amount for each vehicle type, and other necessary information necessary for calculating the travelable distance.

  The storage amount information DB 112 stores the storage amount sent from the automobile 30.

  The antenna position information DB 113 stores position information of each antenna unit 20.

  The exchange storage battery information DB 118 stores position information of the charging station. For example, a service area on a highway where a replacement storage battery is installed.

  The replacement storage battery reservation information DB 119 stores charging station reservation information. For example, the replacement storage battery reservation information also stores information such as how many storage batteries are reserved at each charging station in the service area.

  The communication unit 120 is connected to the communication unit 30 of the automobile 30 via the communication network 1 and the antenna unit 20, and transmits and receives various information.

  The display unit 130 is a display screen that displays information stored in various DBs.

  The input unit 140 is used to input various information. For example, a keyboard.

  The antenna unit 20 is an antenna that performs various road-vehicle communications. It is assumed that they are arranged on the road at regular intervals. Further, position information is set for each antenna unit 20. In this embodiment, the vehicle 30 is connected by wireless communication, and the management server 10 is connected via the network 1. For example, the antenna unit 20 includes narrowband communication such as a DSRC antenna, but any other antenna that can communicate with the automobile 30 may be used.

  The electric vehicle 30 includes a calculation processing unit 300, a communication unit 320, a display unit 330, and an input unit 340. In addition, you may have a database which memorize | stores various data.

  The arithmetic processing unit 300 includes a storage amount detection unit 301 and an automobile information storage unit 302. Perform other necessary computations.

  The storage amount detection unit 301 detects the storage amount of the automobile 30. The actual storage amount may be detected by quantification, or may be expressed as a percentage as a ratio of the storage amount to the maximum storage amount of the storage battery loaded on the automobile 30.

  The car information storage unit 302 stores various car information. For example, vehicle type information, car owners, and the like. Further, information such as the maximum power storage amount of the battery to be loaded, the traveling speed, and the amount of power used for each traveling speed may be stored.

  The communication unit 320 is connected to the communication unit 120 of the management server 10 via the antenna unit 20 and the communication network 1 and transmits and receives various types of information.

  The display unit 330 is a display screen that displays reservation information, whether to make a reservation, charging station information, a map, and the like. In this embodiment, the medium is described as a medium to be displayed by an image or the like, but other output units, for example, an audio output unit by audio output may be used.

  The input unit 340 is used for inputting various information. For example, a button or a touch panel. Further, the input signal may be obtained by recognizing a voice uttered by a driver of the automobile 30 or the like.

  Next, the operation of the seventh embodiment will be described with reference to FIG.

  First, the automobile 30 enters a predetermined road where the antenna unit 20 is installed.

  Next, when communication is established between the antenna unit 20 and the communication unit 320 installed at predetermined intervals in a predetermined road, the automobile 30 is detected by the storage amount detection unit 301 via the communication unit 320. The stored power amount and information about the vehicle stored in the vehicle information storage unit 302 are transmitted to the antenna unit 20 (step S1501).

  The sent information is received by the communication unit 120, information related to the car is stored in the car information DB 111, and information related to the stored power is stored in the stored power information DB 112. The received position of the antenna unit 20 is stored in the antenna position information DB 113 (step S1601).

  The travel distance calculation unit 102 calculates a travelable distance from the vehicle information of the vehicle 30 stored in the vehicle information DB 111 and the storage amount information DB 112 and the storage amount information that is the remaining battery capacity. The replacement storage battery search unit 108 uses the calculated travelable distance and the position information of the antenna unit 20 that has communicated with the vehicle 30 to determine the replacement storage battery replacement location and replacement storage battery candidates that can be reached by the vehicle. It collates with DB118 and extracts. (Step S1602).

  Subsequently, the replacement rechargeable battery search unit 108 determines whether or not there is a replacement storage battery available from the extracted candidates. Note that whether or not there is a spare storage battery is not the actual maximum number of charging stations, but a certain threshold value may be provided. For example, in practice, even if there are 100 replacement rechargeable batteries in one area, the number of reservations is 60, and if the number of reservations reaches 60, there is no reservation space. An algorithm for determination may be used. Further, when there is only one extracted area candidate, it may be possible to make a reservation even if the number of reservations for the 60 vehicles is determined. If there is no space, search again. If there is no rechargeable charging station within the travelable distance, it may be terminated as it is (step S1603). That is, the storage battery may be managed for each area.

  The replacement rechargeable battery reservation unit 109 automatically reserves a replacement rechargeable battery from among the replacement rechargeable batteries that are available. For the algorithm as to which replacement rechargeable battery is selected when there are a plurality of extracted charging stations, for example, the farthest distance that can be reached as a result of comparison with the travelable distance of the automobile 30 to which the information has been sent A certain replacement storage battery may be selected, or a replacement storage battery with the smallest number of reservations may be selected. These reservation information is stored in the reservation information DB 115 and notified to the automobile 30.

  In the present embodiment, automatic reservation is described, but reservation confirmation may be made as to whether or not to make a reservation to the driver of the automobile 30 instead of automatic reservation. For example, reservation confirmation may be performed by a voice recognition function that performs input by human voice such as a driver, or reservation may be actually determined by operating a touch panel of the input unit 340 (step S1604, step S1604). S1502).

  As described above, according to the present embodiment, the remaining amount information of the storage battery (battery) mounted on the vehicle is transmitted to the management server 10 by road-to-vehicle communication via the antenna, and from the assumed travelable distance, Reservations and guidance for replacement batteries can be performed for a plurality of automobiles 30. In this way, the storage battery can be replaced in consideration of the storage capacity of a plurality of automobiles, which contributes to a planned arrangement such as installation of a storage battery replacement place. In addition, it is possible to prevent the vehicle from stopping due to the battery running out on the road, and to improve safety.

  Further, when a narrowband communication antenna such as each DSRC is used, it is not necessary to calculate the position of the automobile 30 by using the position information of the antenna unit 20, thereby reducing the calculation processing of the management server 10. Can be done quickly. In addition, the position of the automobile 30 can be specified with high accuracy. This is because, for example, in an expressway, it may be possible to prevent confusion between positions that are likely to occur when there is an expressway and its side roads.

  Note that the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. In addition, various inventions can be formed by appropriately combining a plurality of components disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, constituent elements over different embodiments may be appropriately combined.

DESCRIPTION OF SYMBOLS 1 ... Communication network 10 ... Management server 20 ... Antenna part 20
DESCRIPTION OF SYMBOLS 30 ... Car 100 ... Arithmetic processing part 101 ... Information registration part 102 ... Travel distance calculation part 103 ... Charging stand search part 104 ... Charging stand reservation part 105 ... Reservation determination part 106 ... Charging stand information provision part 107 ... Reservation information deletion part 108 Replacement battery search unit 109 Replacement battery reservation unit 110 Storage unit 111 Car information DB
112 ... Power storage amount information DB
113 ... Antenna position information DB
114 ... Charging stand information DB
115 ... Reservation information DB
118 ... Exchange storage battery information DB
119 ... Replacement battery reservation information DB
DESCRIPTION OF SYMBOLS 120 ... Communication part 130 ... Display part 140 ... Input part 300 ... Arithmetic processing part 301 ... Power storage amount detection part 302 ... Car information storage part 330 ... Display part 340 ... Input part

Claims (10)

A travel distance calculation unit that calculates the travelable distance of the vehicle from the vehicle information of the vehicle received by the antenna and notified via the communication network, and the remaining capacity information of the storage amount of the vehicle;
A charging station search unit for searching for a charging station within the driving distance from the driving distance and position information of a position that communicated with the vehicle notified from a communication network;
A charging station reservation unit that selects and reserves an appropriate charging station from the charging stations within the travelable distance, and
A charge reservation server comprising: The charging stand search unit
A collation unit that collates the vehicle information with reservation information of a charging station that has already been reserved by the charging station reservation unit;
The charging reservation server according to claim 1, wherein when the charging unit has already reserved a charging station, the charging station search is not performed. A charging station information providing unit for providing charging station information searched by the charging station search unit;
The charge reservation server according to claim 1, further comprising:
The image processing apparatus according to claim 1. 2. The charging according to claim 1, further comprising a charging station information providing unit that provides charging station information when the charging station is not available as a result of searching for the charging station. Reservation server. The charging stand search unit
A determination unit that determines whether or not charging of the vehicle is sufficient from the storage amount information;
When the determination unit determines that the vehicle is not sufficiently charged, the reservation of the charging station is deleted, and when the determination unit determines that the charging unit is sufficient, a charging station search process is performed,
The reservation unit
The charging reservation server according to claim 1, wherein a charging station reservation is performed after the charging station search process. A charging stand that is within the cruising distance from the cruising distance of the vehicle that is received by the antenna and notified through the communication network, and the antenna position information of the antenna that has communicated with the vehicle that is notified from the communication network. Charging station search section to search,
A charging station reservation unit that selects and reserves an appropriate charging station from the charging stations within the travelable distance, and
A charge reservation server comprising: Vehicle information of a vehicle received by an antenna and notified via a communication network; and a travel distance calculation unit that calculates a travelable distance of the vehicle from the remaining capacity information of the storage amount of the vehicle;
A replacement storage battery stand search unit that searches for a replacement storage battery within the travelable distance from the travelable distance and the antenna position information of the antenna that communicated with the vehicle notified from the communication network;
A replacement storage battery reservation unit that selects and reserves an appropriate replacement storage battery from the charging station within the travelable distance,
A charge reservation server comprising: A charging reservation system comprising a vehicle including a storage battery, and the management server and a management server connected to the vehicle via an antenna and a communication network,
The server
Vehicle information of the vehicle received by the antenna and notified via the communication network, and a travel distance calculation unit that calculates a travelable distance of the vehicle from the remaining capacity information of the storage amount of the vehicle;
A charging station search unit for searching for a charging station within the driving distance from the driving distance and the antenna position information of the antenna that communicated with the vehicle notified from a communication network;
A charging station reservation unit that selects and reserves an appropriate charging station from the charging stations within the travelable distance, and
With
The car is
A storage amount detection unit for detecting a storage amount of the vehicle;
A charging reservation system comprising: an automobile information storage unit for storing automobile information of the automobile. A charging reservation system comprising a vehicle provided with a storage battery, a management server connected to the management server via an antenna installed on a predetermined road and a communication network,
From the vehicle information of the vehicle received by the antenna and notified via the communication network and the remaining capacity information of the storage amount of the vehicle to calculate the travelable distance of the vehicle,
Search for a charging station within the travelable distance from the travelable distance and the antenna position information of the antenna that communicated with the vehicle notified from the communication network,
From a charging station within the travelable distance, select an appropriate charging station and make a reservation,
The charge reservation method characterized by the above-mentioned. Vehicle information of the vehicle received by the antenna and notified via the communication network, and a calculation process for calculating the travelable distance of the vehicle from the remaining capacity information of the storage amount of the vehicle;
A search process for searching for a charging station within the travelable distance from the travelable distance and antenna position information of an antenna that has communicated with the automobile notified from a communication network;
Reservation processing for selecting an appropriate charging station from the charging station within the travelable distance and making a reservation;
A charge reservation program characterized in that the program is operated on a server.

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