JP2004318239A - Vehicle sharing system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicle sharing system for securing the reliability of time information of a vehicle, and for carrying out an accurate vehicle lending process and a vehicle returning process by the vehicle itself. <P>SOLUTION: When a port arriving vehicle reaches a port, a control part of the port arriving vehicle carries out simultaneous multiple address of current time information by an internal clock along with adjustment date and time of the time information stored in a storage to all port parked vehicles parked in the port that has been reached by using a short range communication device (S5). In the port parked vehicle, adjustment date and time of one's current time information stored in a storage of the port parked vehicle is subtracted from the adjustment date and time of the time information received by using a short range communication device, and it is determined whether or not time has passed from a predetermined period (S15). If the result is that time has passed from the predetermined period (YES of S15), a control part of the port parked vehicle updates one's time information and its adjustment date and time by the received time information and its adjustment date and time (S16). <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a vehicle sharing system for renting a vehicle parked in a predetermined parking area to a user.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, in a vehicle shared use system for renting a vehicle parked in a predetermined parking area to a user, various proposals have been made for the purpose of efficiently renting a vehicle parked in the parking area to a plurality of users. Has been done.
For example, in one of them, a user registered as a member in a control room for managing a vehicle uses a shared vehicle with a smart card (IC card) storing a given member ID number. At this time, when the user accesses the shared vehicle using the smart card, the control unit of the shared vehicle determines whether the input member ID number is an authorized user. If the input member ID number is an authorized user, the use of the shared vehicle is permitted, and the measurement of the use time and the use fuel is started.
[0003]
When the shared vehicle arrives at the destination, the control unit of the shared vehicle calculates the mileage, usage time, and fuel consumption, obtains the usage fee by referring to the fee table from these information, and transmits it to the control room. I do. Then, the usage fee is settled by the account of the financial institution designated for each user through the adjustment processing unit of the management device provided in the control room. As described above, in the conventional vehicle shared use system, both the vehicle lending process and the vehicle return process are performed by the vehicle alone, and the vehicle parked in the parking area can be efficiently lent to a plurality of users. (For example, refer to Patent Document 1).
[0004]
[Patent Document 1]
JP 2002-279310 A
[0005]
[Problems to be solved by the invention]
By the way, in the system as described above, since it is possible to execute both the vehicle lending process and the vehicle return process on a single vehicle, the lending time and the return time used for the billing process are determined by a clock mounted on the own vehicle. Is managed based on the time information. The time of this clock is periodically adjusted based on reference time information included in a radio wave received from a GPS (Global Positioning System) satellite, a control room, or the like.
However, if the parking area is placed in a place where radio waves from GPS satellites or control rooms cannot be received, such as underground or indoors, and the vehicle is parked in the parking area for a long time, the time of the vehicle clock is not adjusted, Time shift occurs. As a result, the time difference between the other vehicle and the own vehicle or between the control room and the own vehicle causes a time difference, thereby lowering the reliability of the use result data based on the lending time and the returning time. there were.
[0006]
The present invention has been made in view of the above problems, and secures the reliability of time information of a vehicle used at the time of lending and returning, and executes both accurate vehicle lending processing and vehicle returning processing on a single vehicle basis. It is an object of the present invention to provide a vehicle shared use system that can perform the operation.
[0007]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the vehicle shared use system according to the first aspect of the present invention uses a vehicle (for example, the shared vehicle 2 of the embodiment) parked in a predetermined parking area (for example, the port 50 of the embodiment). In the vehicle shared use system, which lends to a user and manages a lending process and a returning process of the vehicle based on time information of a clock (for example, the internal clock 40 of the embodiment) provided in the vehicle, A vehicle-to-vehicle communication means (for example, the short-range communication antenna 23 and the short-range communication device 24 of the embodiment) capable of transmitting and receiving information to and from another vehicle within a predetermined range, and a radio wave including reference time information. Reference time receiving means for receiving (for example, step S1 in the embodiment) and time information adjusting means for adjusting the time of the clock based on the received reference time information (for example, step S1 in the embodiment). (Step S2), adjustment information storage means (for example, step S3 of the embodiment) for storing the adjustment date and time when the time of the clock is adjusted, and when the vehicle arrives at the parking area, the inter-vehicle communication means Time information broadcasting means for simultaneously broadcasting the time adjusted by the time information adjusting means to the other vehicle together with the adjustment date and time of the time stored by the adjustment information storing means (for example, from step S4 of the embodiment). Step S5).
[0008]
In the vehicle shared use system having the above configuration, the reference time receiving means provided in the vehicle receives a radio wave including the reference time information from, for example, a GPS satellite or a control room managing the vehicle, and the time information adjusting means includes The time of the clock is adjusted based on the received reference time information, and the adjustment date and time at which the time was adjusted is stored in the adjustment information storage unit. Then, when the vehicle arrives at the parking area, the time information broadcasting means transmits the time adjusted by the time information adjusting means together with the adjusted date and time of the time stored by the adjustment information storing means to the inter-vehicle communication means. For example, by simultaneously broadcasting to other vehicles existing in the same parking area as the vehicle itself, accurate time information can be notified to other vehicles parked in the parking area together with the adjustment date and time.
[0009]
The vehicle shared use system according to the second aspect of the present invention lends a vehicle (for example, the shared vehicle 2 of the embodiment) parked in a predetermined parking area (for example, the port 50 of the embodiment) to the user, In a vehicle shared use system that manages a lending process and a return process of a vehicle based on time information of a clock (for example, the internal clock 40 of the embodiment) provided in the vehicle, the vehicle may be operated in a predetermined range. A vehicle-to-vehicle communication means (for example, the short-range communication antenna 23 and the short-range communication device 24 of the embodiment) capable of transmitting and receiving information to and from a vehicle; When receiving the time adjustment date and time and comparing the adjustment date and time received from the other vehicle with the adjustment date and time stored in the timepiece and adjusting the time of the clock, if the time has passed a predetermined time, A time information updating unit (for example, steps S11 to S16 of the embodiment) for updating the time of the clock and the adjustment date and time of the time to the time received from the other vehicle and the adjustment date and time of the time. It is characterized by.
[0010]
In the vehicle shared use system having the above configuration, the time information updating unit provided in the vehicle receives the time and the adjusted date and time of the time from the other vehicle via the inter-vehicle communication unit, so that If the received time adjustment date and time and the time adjustment time of the clock provided in the own vehicle are compared with each other and a predetermined time has elapsed, the time of the own vehicle clock and the adjustment time of the time are transmitted from another vehicle. It can be updated to the latest received time and the adjusted date and time.
[0011]
The vehicle shared use system according to the third aspect of the present invention lends a vehicle (for example, the shared vehicle 2 of the embodiment) parked in a predetermined parking area (for example, the port 50 of the embodiment) to the user, In a vehicle shared use system that manages a lending process and a return process of a vehicle based on time information of a clock (for example, the internal clock 40 of the embodiment) provided in the vehicle, the vehicle may be operated in a predetermined range. A vehicle-to-vehicle communication unit (for example, the short-range communication antenna 23 and the short-range communication device 24 of the embodiment) capable of transmitting and receiving information to and from a vehicle, and a reference time receiving unit (for example, a radio wave including reference time information) Step S1) of the embodiment, time information adjusting means for adjusting the time of the clock based on the received reference time information (for example, step S2 of the embodiment), The adjustment information storage means (for example, step S3 in the embodiment) for storing the adjustment date and time when the time is adjusted, and the time information adjustment means adjusts the time via the inter-vehicle communication means when the vehicle arrives at the parking area. A time information broadcasting means (for example, steps S4 to S5 in the embodiment) for simultaneously broadcasting the time together with the adjustment date and time of the time stored by the adjustment information storage means to the other vehicle; and the inter-vehicle communication. Through the means, receives a time and the adjustment date and time from the other vehicle, and compares the adjustment date and time received from the other vehicle with the adjustment date and time stored by the adjustment information storage means for a predetermined time. If the time has passed, the time information updating means (for example, updating the time of the clock and the adjustment date and time of the time to the time received from the other vehicle and the adjustment date and time of the time). Characterized by comprising the step S16) and the step S11 in the embodiment.
[0012]
In the vehicle shared use system having the above-described configuration, the time information broadcasting means transmits the time adjusted by the time information adjustment means together with the adjustment date and time of the time stored by the adjustment information storage means to the inter-vehicle communication means. For example, by simultaneously broadcasting to other vehicles existing in the same parking area as the vehicle itself, accurate time information can be notified to other vehicles parked in the parking area together with the adjustment date and time. On the other hand, the time information updating means receives the time and the adjustment date and time from the other vehicle via the inter-vehicle communication means, so that the adjustment date and time received from the other vehicle and the own vehicle stored in the adjustment information storage means are stored. If the predetermined time has elapsed by comparing the time and date of the clock with the time of the own vehicle, the time of the clock of the host vehicle and the time and date of adjustment of the time are changed to the latest time received from another vehicle and the time and date of adjustment of the time. Can be updated.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a block diagram showing a configuration of an embodiment of the present invention.
(Control room)
In FIG. 1, a control room 1 is parked in a parking area called a port, and is a vehicle management device that manages shared use of vehicles, such as reservation and allocation of shared vehicles 2 that are used jointly by users, billing of usage fees, and the like. It is a management center of the vehicle shared use system provided with.
The shared vehicle 2 includes information for specifying a vehicle such as a departure / arrival port, a date, a time, and a vehicle type when a user A3 registered as a member in the control room 1 makes a reservation in the control room 1 from the portable terminal 4. A method called "reserved ride" in which a vehicle is reserved by designating a vehicle, and a "direct ride" in which a user B5 registered as a member in the control room 1 uses a vacant vehicle directly with a smart card 6 possessed by the user. It is used in two ways:
[0014]
The communication network 7 is a communication network for connecting the mobile terminal 4 owned by the user A3 to the control room 1 and the shared vehicle 2 to the control room 1, and uses, for example, a WAP (Wireless Application Protocol) or the like. Information is transmitted and received by wireless communication via a mobile communication network, and by wired communication via the Internet or a public line network.
In addition, the vehicle-to-vehicle communication network 8 is provided with a short-range communication device (transceiver) of a low-power high-frequency (LPRF: Low Power Radio Frequency) in each shared vehicle 2 so that wireless communication can be performed between the short-range shared vehicles 2. Communication network.
[0015]
It is assumed that one or more shared vehicles 2 are managed under the control room 1. Further, there may be any number of users A3 and B5.
Further, the mobile terminal 4 is a terminal having a function of connecting to a computer network such as the Internet or a public line network, and includes a mobile phone and a personal handy phone system (Personal Handy Phone System) connected by wireless communication. Not limited to mobile terminals or mobile communication terminals, but also includes terminals connected by wired communication. Further, the above-mentioned terminals using wired or wireless communication include terminals having a simple computer network connection function.
[0016]
The control room (vehicle management device) 1 includes a control unit 11, a member master 12, a vehicle master 14, a port master 15, a lending history master 16, a reservation master 17, a communication device 18, a settlement process It comprises a unit 19 and a network 20.
Here, the control unit 11 executes a vehicle management control program in a computer system provided with a CPU (Central Processing Unit) to manage the entire operation of the control room 1, thereby lending and returning the shared vehicle 2. Execute.
[0017]
The member master 12 is a database that records registration data of each user registered as a member.
The vehicle master 14 is a database that records a state of each shared vehicle including a vehicle type, equipment, a parking position, and the like in order to manage the shared vehicle 2.
The port master 15 is a database that records the status of each port including the number of parked vehicles and the number of parked vehicles in order to manage the shared vehicle 2.
The lending history master 16 is a database that records the usage history of the shared vehicle 2.
[0018]
The reservation master 17 is a database in which reservation information is recorded in order to manage the vehicle reservation by the user A3 in “reserved ride”.
The communication device 18 allows the control room 1 to transmit and receive the information related to the lending reservation of the vehicle with the mobile terminal 4 via the communication network 7 and the information related to the lending and returning of the shared vehicle 2 and the vehicle, that is, the vehicle. An interface for transmitting and receiving management data. The transmission and reception of vehicle management data between the control room 1 and the shared vehicle 2 are performed by wireless communication.
[0019]
In addition, the settlement processing unit 19 includes, for example, one vehicle account of a plurality of financial institutions, a plurality of accounts of one financial institution, and the like, a vehicle usage fee for each of a plurality of usage histories distinguished for each billing party. The total amount is recorded and the cost is settled through a financial institution (not shown).
Then, in the control room 1, the network 20, the control unit 11, the member master 12, the vehicle master 14, the port master 15, the lending history master 16, the reservation master 17, the communication device 18, This is a communication network that connects to the settlement processing unit 19 and configures a LAN (Local Area Network) for transmitting and receiving data.
[0020]
(Shared vehicle)
Next, the shared vehicle 2 used in the present embodiment will be described with reference to the drawings.
FIG. 2 is a block diagram showing the configuration of the shared vehicle 2. In FIG. 2, the shared vehicle 2 includes a wide-area communication antenna 21, a wide-area communication device 22, a short-range communication antenna 23, and a short-range communication device 24. , A card antenna 25, a card reader 26, a control unit 27, a member list 28, and a door lock mechanism 29.
[0021]
The shared vehicle 2 includes a main power supply control mechanism 30, a monitor display unit 31, an operation unit 32, a key switch 33, a return button 34, a storage device 35, a charge table 36, and a vehicle speed pulse detector 37. , An A / D converter 38 and a fuel gauge 39.
Further, the shared vehicle 2 includes an internal clock 40, a GPS antenna 41, a GPS receiver 42, a tag antenna 43, and an ID tag reader 44.
[0022]
The shared vehicle 2 is parked in one parking space called a lot in a parking area called a port, and communicates with the communication device 18 in the control room 1 via a wide-area communication device 22 connected to a wide-area communication antenna 21. And wirelessly communicate with the control room 1 to exchange various data.
The shared vehicle 2 uses a low-power high-frequency short-range communication device 24 connected to the short-range communication antenna 23 to communicate with another shared vehicle 2 parked in the same port. 8 to exchange various data with each other.
[0023]
When the user A3 or the user B5 holds the smart card 6 of, for example, a non-contact read / write system over the card antenna 25 provided in the shared vehicle 2, the shared vehicle 2 outputs a signal read by the card reader 26. To the control unit 27 that manages the operation of the shared vehicle 2.
[0024]
On the other hand, the shared vehicle 2 has a member list 28 that is a copy of the member master 12 that records the registration data of each user registered as a member in the control room 1. Is compared with the content of the signal read by the card reader 26 to determine whether to rent a vehicle. The recorded contents of the member list 28 are periodically collated with the recorded contents of the member master 12, and the contents are revised or abolished.
[0025]
When the user is granted permission to rent the shared vehicle 2, the door lock mechanism 29 unlocks the door key, and the main power supply control mechanism 30 enables the ignition circuit.
The user A3 or the user B5 inputs necessary items from the operation unit 32 to the control unit 27 in accordance with the instruction displayed on the monitor display unit 31 when lending the shared vehicle 2 and presses the key switch 33 to share the shared vehicle 2. Is turned on to start using the shared vehicle 2. When returning the shared vehicle 2 to the port, the user A3 or the user B5 performs a return process by pressing the return button 34 in the port.
[0026]
The smart card 6 described above is an ID terminal equipped with an IC including a processor that can read and write the recorded ID number and can make a simple decision only in the card. The ID terminal used to notify the ID number to the shared vehicle 2 is not limited to the non-contact, contact read / write method as long as the reading device of the shared vehicle 2 is compatible with the non-contact or contact read / write type IC card. Any device that can read and write the recorded ID number, such as a magnetic card, a mobile phone having a built-in IC chip, or the like, may be used.
[0027]
The storage device 35 is composed of a ROM (Read Only Memory) or a RAM (Random Access Memory), and stores in advance the ID number of the vehicle assigned to each shared vehicle 2 and inputs the ID number of each vehicle. The ID number and PIN of the user are temporarily stored.
Further, the fee table 36 is a database that records a fee system for use of the shared vehicle 2.
Further, while the shared vehicle 2 is traveling, a vehicle speed pulse signal indicating the traveling state of the shared vehicle 2 is notified from the vehicle speed pulse detector 37 to the control unit 27, and the control unit 27 further performs A / D conversion. The fuel gauge 39 is connected via the heater 38, and the control unit 27 confirms the fuel consumption by this.
[0028]
Accordingly, the control unit 27 calculates the usage fee by referring to the fee table 36 from the mileage calculated from the vehicle speed pulse of the vehicle speed pulse detector 37 and the fuel consumption calculated from the value of the fuel gauge 39, and stores the usage fee. The information is transmitted to the control room 1 together with the vehicle ID number stored in 35 and the user ID number and PIN entered by each user. The control room 1 records this in the lending history master 16 as the lending history.
[0029]
The internal clock 40 is a clock used when calculating the rental date / time, return date / time, use time, and the like of the shared vehicle 2, and the time information of the internal clock 40 is based on GPS reception connected to the GPS antenna 41. The calibration is performed by the device 42 using reference time information included in a radio wave received from a GPS (Global Positioning System) satellite. The adjusted date and time obtained by adjusting the time information of the internal clock 40 is temporarily stored in the storage device 35, and is used as a scale for determining the reliability of the current time information indicated by the internal clock 40.
[0030]
When radio waves including reference time information can be received from the control room 1 or the like via the wide area communication device 22, the shared vehicle 2 includes a GPS antenna 41 and a GPS receiver 42 to acquire the reference time information. The time information of the internal clock 40 may be omitted, and is calibrated using reference time information included in the radio wave received by the wide area communication device 22.
[0031]
The tag antenna 43 and the ID tag reader 44 are devices for the shared vehicle 2 parked at the port to identify a lot in the port.
The tag will be described with reference to FIG. 3. As shown in FIG. 3, the port 50 is provided with a plurality of lots 51 for parking the shared vehicle 2, and each lot 51 has a port 50 and a lot 51. An ID tag 52, which is a device for transmitting an ID number individually assigned to the ID number, is provided.
[0032]
The ID tag 52 is unique to the tag antenna 43 by, for example, any one of an electromagnetic coupling method, an electromagnetic induction method, a microwave method, an electrostatic coupling method, and an optical transmission method for each port 50 or lot 51. The ID number is exchanged, and the shared vehicle 2 reads the signal received by the tag antenna 43 with the ID tag reader 44 to grasp the position of the port or lot where the vehicle is parked. As shown in FIG. 3, two ID tags 52 are arranged diagonally to the lot 51 and correspond to the front stop and the rear stop of the shared vehicle 2, and the tag antenna 43 is closer to the ID tag 52. At the front corner or the rear corner (the front left corner in FIG. 3).
[0033]
The mechanism for grasping the position of the port or lot where the shared vehicle 2 is parked is not limited to the ID tag 52, but may be a transmitter / receiver used for an ETC (automatic toll collection system) or a position detecting means using GPS. Is also good.
[0034]
(Shared vehicle rental, return operation)
Next, vehicle lending and return operations of the vehicle shared use system according to the present embodiment will be briefly described with reference to FIGS. 1, 2, and 3. FIG.
The user A3 or the user B5 registered as a member in the control room 1 possesses the smart card 6, and thereby uses the shared vehicle 2.
When the user A3 or the user B5 accesses the shared vehicle 2 with the smart card 6, the control unit 27 of the shared vehicle 2 uses the card reader 26 to update the member ID (user ID) recorded on the smart card 6 with the card reader 26. The member list 28 is searched with the read and received member ID, and it is determined whether the member ID is an authorized user.
[0035]
Then, when the received member ID is a legitimate user, the control unit 27 of the shared vehicle 2 outputs a door unlock signal to the door lock mechanism 29 and displays a PIN input screen on the monitor display unit 31. Next, when the user A3 or the user B5 inputs a PIN from the operation unit 32, the input PIN is given to the user A3 or the user B5 in advance, and the PIN recorded in the member list 28. It is determined whether or not they match. If the input PIN is given to the user A3 or B5 in advance and matches the PIN recorded in the member list 28, setting of the lending time based on the internal clock 40 and the vehicle speed pulse counter And setting of fuel for lending. Note that the setting of each item is “lending time = current time”, “vehicle speed pulse counter = reset”, and “lending fuel = current value of fuel gauge”.
[0036]
When the setting of each item is completed, the control unit 27 of the shared vehicle 2 outputs an engine start permission signal to the main power supply control mechanism 30. In order to know whether the user A3 or the user B5 has started using the shared vehicle 2, the control unit 27 of the shared vehicle 2 turns off the parking lot detection by the tag antenna 43 and the ID tag reader 44. Is determined. When the shared vehicle 2 leaves the lot 51 of the port 50 at the departure place and the ID tag 52 cannot be detected, the parking lot detection by the tag antenna 43 and the ID tag reader 44 is turned off, and the shared vehicle 2 starts running. Judge that you have done. During traveling, the vehicle speed pulse detector 37 constantly notifies the control unit 27 of the shared vehicle 2 of the vehicle speed pulse, and the control unit 27 counts this and measures the travel distance of the shared vehicle 2 and the like.
[0037]
On the other hand, in order to know whether or not the shared vehicle 2 has arrived at the lot 51 of the destination port 50, the control unit 27 of the shared vehicle 2 turns on the parking lot detection by the tag antenna 43 and the ID tag reader 44. It is determined whether the ID tag 52 can be detected when the shared vehicle 2 arrives at the lot 51 of the destination port 50.
Then, when the shared vehicle 2 arrives at the lot 51 of the destination port 50 and the ID tag 52 can be detected, the parking lot detection by the tag antenna 43 and the ID tag reader 44 is turned ON. The control unit 27 turns on a lamp indicating “can be returned” on the return button 34.
[0038]
Next, when the user A3 or the user B5 turns on the return button 34 and returns the shared vehicle 2, the control unit 27 of the shared vehicle 2 sets the return time based on the internal clock 40, and sets the vehicle speed. Set the pulse counter and return fuel. The setting of each item is “return time = current time”, “vehicle speed pulse counter = reset”, and “return fuel = current value of fuel gauge”.
When the setting of each item is completed, the control unit 27 of the shared vehicle 2 calculates the mileage, the usage time, and the fuel consumption, obtains the usage fee by referring to the fee table 36 from the information, and monitors the usage fee. The calculated charge data is displayed on the display unit 31.
[0039]
Next, the control unit 27 of the shared vehicle 2 determines whether or not data exists in the card reader 26, and waits for the user A3 or the user B5 to leave the shared vehicle 2 together with the smart card 6. Then, when the user A3 or the user B5 leaves the shared vehicle 2 together with the smart card 6, the control unit 27 of the shared vehicle 2 outputs a door lock signal to the door lock mechanism 29, and the wide area communication device 22 A return completion signal is transmitted to the control room 1 via the wide area communication antenna 21. The return completion signal includes the member ID of the user A3 or the user B5 using the shared vehicle 2 and the lending date and time, return date and time, usage time, usage fee, mileage, fuel consumption, and the like of the shared vehicle 2. Shall be included.
[0040]
On the other hand, when the return completion signal is transmitted from the shared vehicle 2, the control unit 11 of the control room 1 adds the user A3 or the user B5 using the shared vehicle 2 to the lending list recorded in the lending history master 16. The member ID of the shared vehicle 2 and the lending date / time, return date / time, usage time, usage fee, mileage, fuel consumption, etc. of the shared vehicle 2 are written. In the case of performing a closing process at the end of the month or the like, a charge billing process is performed on the account designated for each user of the financial institution via the settlement processing unit 19 from the recorded contents of the member master 12 and the lending history master 16. I do.
[0041]
(Time adjustment operation)
As described above, in the vehicle shared use system according to the present embodiment, the internal clock 40 of the shared vehicle 2 calculates the lending date and time, the return date and time, the usage time, and the like. 2 must be the same, and also desirably the same between the control room 1.
Normally, as described above, the time information of the internal clock 40 is calibrated using reference time information included in a radio wave received by the GPS receiver 42 or a radio wave received by the wide area communication device 22.
[0042]
However, if any of the above-mentioned ports 50 is installed in a basement or indoor area where external radio waves cannot be received, the shared vehicle 2 parked in the port 50 for a long time has its internal clock 40 The time information cannot be calibrated using the reference time information included in the radio wave received by the GPS receiver 42 or the radio wave received by the wide area communication device 22.
[0043]
Hereinafter, a time adjustment operation of the internal clock 40 capable of coping with such a case will be described with reference to the drawings.
FIG. 4 shows an operation at the time adjustment of the shared vehicle 2 (hereinafter, referred to as a port arriving vehicle) arriving at the port 50 and a shared vehicle 2 parked at the port 50 (hereinafter, a port parked vehicle). 4 is a flowchart showing an operation at the time of time adjustment.
In FIG. 4, first, the control unit 27 of the vehicle arriving at the port determines whether or not the GPS receiver 42 or the wide area communication device 22 is receiving a radio wave including reference time information (step S1).
[0044]
When the radio wave including the reference time information is received in step S1 (YES in step S1), the control unit 27 of the port arriving vehicle changes the time information of the internal clock 40 based on the reference time information included in the received radio wave. At the same time as updating (step S2), the adjusted date and time (time stamp) at which the time information was adjusted (updated) is temporarily stored in the storage device 35 (step S3), and the process proceeds to the next step S4.
If no radio wave including the reference time information is received in step S1 (NO in step S1), first, the control unit 27 of the port arriving vehicle does nothing and proceeds to the next step S4.
[0045]
In step S4, the control unit 27 of the vehicle arriving at the port determines whether the parking lot detection by the tag antenna 43 and the ID tag reader 44 has been turned ON, and determines whether the vehicle arriving at the port has arrived at the lot 51 of the port 50. Is determined (step S4).
If the vehicle arriving at the port has not arrived at the lot 51 of the port 50 at step S4 (NO at step S4), the process returns to step S1, and the above operation is repeated until the vehicle arriving at the port arrives at the port 50. Monitor.
[0046]
On the other hand, if the port arriving vehicle has arrived at the lot 51 of the port 50 in step S4 (YES in step S4), the controller 27 of the port arriving vehicle adjusts the internal Short-distance communication is performed together with the adjusted date and time (time stamp) of the time information temporarily stored in the storage device 35 so that the latest time information from the clock 40 reaches all the port parked vehicles parked at the arriving port 50. Simultaneous broadcast is performed from the short-range communication antenna 23 using the device 24 (step S5).
[0047]
On the other hand, in the port parked vehicle, whether or not the short-range communication device 24 connected to the short-range communication antenna 23 has received data from the vehicle arriving at the port (whether or not the radio wave transmitted from the vehicle arriving at the port is received) ) Is determined (step S11). If there is no received data (NO in step S11), the operation of step S11 is repeated to monitor reception of a radio wave transmitted from the vehicle arriving at the port.
[0048]
Also, in step S11, when there is received data from the port arriving vehicle (when the radio wave transmitted from the port arriving vehicle is received) (YES in step S11), the short-range communication device 24 of the port parked vehicle performs the receiving process. At the same time (Step S12), the control unit 27 of the port parked vehicle determines whether or not the received data is time adjustment information including the latest time information and the adjustment date and time (time stamp) of the time information (Step S13). ).
[0049]
If the received data is not the time adjustment information in step S13 (NO in step S13), the control unit 27 of the port parked vehicle performs a process corresponding to the content of the received data (step S14), and proceeds to step S11. Then, the above operation is repeated to monitor the reception of the radio wave transmitted from the vehicle arriving at the port.
[0050]
If the received data is the time adjustment information in step S13 (YES in step S13), the control unit 27 of the port parked vehicle determines the port parked vehicle from the adjustment date and time (time stamp) of the received time information. It subtracts the adjustment date and time (time stamp) of its latest time information temporarily stored in the storage device 35, and determines whether or not time has elapsed from a predetermined period (step S15).
[0051]
If it is determined in step S15 that the latest adjustment time (time stamp) of the latest time information is subtracted from the adjustment time (time stamp) of the received time information, the time has not elapsed from a predetermined period (NO in step S15). ), The control unit 27 of the port parked vehicle returns to step S11, repeats the above-described operation, and monitors reception of the radio wave transmitted from the vehicle arriving at the port.
[0052]
On the other hand, in step S15, the adjustment date and time (time stamp) of the latest time information of the own device is subtracted from the adjustment date and time (time stamp) of the received time information, and when a predetermined period has elapsed (YES in step S15). The control unit 27 of the port parked vehicle updates the time information of its own internal clock 40 and its adjustment date and time (time stamp) with the received time information and its adjustment date and time (time stamp) (step S16). Then, the process returns to step S11, and the above operation is repeated to monitor reception of a radio wave newly transmitted from the vehicle arriving at the port.
[0053]
In the present embodiment, the control unit 27 of the shared vehicle 2 includes a reference time receiving unit, a time information adjusting unit, an adjustment information storing unit, a time information broadcasting unit, and a time information updating unit. I have. More specifically, step S1 in FIG. 4 is used as the reference time receiving means, step S2 is used as the time information adjusting means, step S3 is used as the adjustment information storing means, and steps S4 to S5 are used as the time information broadcasting means. Equivalent to. Steps S11 to S16 in FIG. 4 correspond to a time information updating unit.
[0054]
As described above, in the shared vehicle 2 used in the vehicle shared use system according to the present embodiment, when the GPS receiver 42 can receive radio waves, or when the wide area communication device 22 can receive radio waves, The time information of the internal clock 40 is calibrated using reference time information included in a radio wave received by the GPS receiver 42 or a radio wave received by the wide area communication device 22. On the other hand, if the vehicle is parked in a port 50 installed underground or indoors, and the GPS receiver 42 cannot receive radio waves, or if the wide-area communication device 22 cannot receive radio waves, the parked shared vehicle 2 moves to the port The shared vehicle 2 arriving at 50 notifies the time information of the internal clock 40 of the vehicle.
[0055]
More specifically, since the time information and the adjustment date and time are broadcast simultaneously from the shared vehicle 2 that has arrived at the port 50 using the short-range communication device 24, the control unit 27 of the parked shared vehicle 2 Receives this, and compares the latest adjustment date and time obtained by adjusting the time information of its own internal clock 40 with the received adjustment date and time. If the own adjustment date and time is older than a predetermined period, the received time information It updates the time information of its own internal clock 40 and its adjustment date and time with the adjustment date and time.
[0056]
Therefore, the shared vehicle 2 parked in the port 50 is lent to the user, and the vehicle shared use system that manages the lending process and the returning process of the shared vehicle 2 based on the time information of the clock provided in the shared vehicle 2. In the above, the time information of the internal clock 40 of the shared vehicle 2 for calculating the rental date and time, the return date and time, the usage time, and the like can be made at least the same between the respective shared vehicles 2. And the shared vehicle system that can execute the vehicle lending process and the vehicle return process with a single shared vehicle alone can be realized.
[0057]
【The invention's effect】
As described above, according to the vehicle shared use system of the present invention, when the vehicle arrives at the parking area, the time information broadcasting means stores the latest time adjusted by the time information adjusting means by the adjustment information storage means. Along with the adjusted date and time of the time, for example, by simultaneously broadcasting to other vehicles existing in the same parking area as the vehicle itself via the inter-vehicle communication means, accurate time information is transmitted to other vehicles parked in the parking area. Can be notified together with the adjustment date and time.
[0058]
Therefore, other vehicles parked in the parking area acquire the latest time and the adjustment date and time of the time without receiving a radio wave including reference time information from, for example, a GPS satellite or a control room managing the vehicle. The effect that it can be obtained is obtained.
[0059]
According to the vehicle shared use system of the present invention, the time information updating means provided in the vehicle compares the adjustment date and time received from the other vehicle with the adjustment date and time of the clock provided in the own vehicle, and If the time has elapsed, the time of the clock of the own vehicle and the adjustment date and time of the time can be updated to the latest time received from another vehicle and the adjustment date and time of the time.
[0060]
Therefore, even if it is not possible to adjust the clock time by receiving a radio wave including reference time information from a GPS satellite, a control room for managing the vehicle, or the like, the time of the own vehicle's clock is changed to the time of another vehicle. The effect that the same precision as that of the time can be maintained can be obtained.
[0061]
That is, in a vehicle shared use system that rents a vehicle parked in a predetermined parking area to a user and manages the renting process and the returning process of the vehicle based on time information of a clock provided in the vehicle, By using a vehicle having such a function, it is possible to realize a vehicle shared use system that can secure the reliability of time information of the vehicle and can execute a correct vehicle lending process and a vehicle return process by itself. The effect is obtained.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a configuration of an embodiment of the present invention.
FIG. 2 is a diagram showing a configuration of a shared vehicle used in the embodiment.
FIG. 3 is a diagram showing a port for parking a shared vehicle used in the embodiment.
FIG. 4 is a flowchart showing a time adjustment operation of the shared vehicle used in the embodiment.
[Explanation of symbols]
1 control room
2 Shared vehicles
3 User A
5 User B
7 Communication network
8 Inter-vehicle communication network
21 Wide-area communication antenna
22 Wide area communication equipment
23 Short-range communication antenna (inter-vehicle communication means)
24 Short-range communication device (vehicle-to-vehicle communication means)
27 Control unit
40 Internal clock
41 GPS antenna
42 GPS receiver
50 ports (parking area)
S1 Reference time receiving means
S2 time information adjusting means
S3 adjustment information storage means
S4 to S5 Time information broadcasting means
S11 to S16 Time information updating means

Claims (3)

In a vehicle shared use system that manages a rental process and a return process of the vehicle based on time information of a clock provided in the vehicle while renting a vehicle parked in a predetermined parking area to a user,
Said vehicle,
Inter-vehicle communication means capable of transmitting and receiving information to and from another vehicle within a predetermined range,
Reference time receiving means for receiving a radio wave including reference time information,
Time information adjusting means for adjusting the time of the clock based on the received reference time information,
Adjustment information storage means for storing an adjustment date and time obtained by adjusting the time of the clock;
When the vehicle arrives at the parking area, the time adjusted by the time information adjusting means is transmitted to the other vehicle via the inter-vehicle communication means together with the adjustment date and time of the time stored by the adjustment information storing means. A vehicle shared use system comprising a time information broadcasting means for broadcasting. In a vehicle shared use system that manages a rental process and a return process of the vehicle based on time information of a clock provided in the vehicle while renting a vehicle parked in a predetermined parking area to a user,
Said vehicle,
Inter-vehicle communication means capable of transmitting and receiving information to and from another vehicle within a predetermined range,
Through the inter-vehicle communication means, receives the time and the adjusted date and time from the other vehicle, and adjusts the adjusted date and time received from the other vehicle and the time of the clock stored therein by adjusting the date and time And a time information updating unit that updates the time of the clock and the adjustment date and time of the time to the time received from the other vehicle and the adjustment date and time of the time when the predetermined time has elapsed. Vehicle shared use system characterized by the above-mentioned. In a vehicle shared use system that manages a rental process and a return process of the vehicle based on time information of a clock provided in the vehicle while renting a vehicle parked in a predetermined parking area to a user,
Said vehicle,
Inter-vehicle communication means capable of transmitting and receiving information to and from another vehicle within a predetermined range,
Reference time receiving means for receiving a radio wave including reference time information,
Time information adjusting means for adjusting the time of the clock based on the received reference time information,
Adjustment information storage means for storing an adjustment date and time obtained by adjusting the time of the clock;
When the vehicle arrives at the parking area, the time adjusted by the time information adjusting means is transmitted to the other vehicle via the inter-vehicle communication means together with the adjustment date and time of the time stored by the adjustment information storing means. Time information broadcasting means for broadcasting;
Through the inter-vehicle communication means, receives the time and the adjustment date and time from the other vehicle, and compares the adjustment date and time received from the other vehicle with the adjustment date and time stored by the adjustment information storage means. A time information updating unit that updates the time of the clock and the adjustment date and time of the clock to the time received from the other vehicle and the adjustment date and time of the time when the predetermined time has elapsed. Vehicle sharing system.

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