JP4047690B2 - Communications system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a communication system, and more particularly to a communication system using a portable device.
[0002]
[Prior art]
Conventionally, for example, in a vehicle, a vehicle control method by remote operation such as a smart keyless system such as a smart entry function and a smart ignition function using a portable device is known. The smart entry function means that when a user approaches a vehicle with a portable device having a preset ID code, the vehicle and the portable device collate the ID code and determine that the ID code is correct. This is a function of automatically unlocking the door lock when the door is released and automatically locking the door lock when the user leaves the vehicle. The smart ignition function is a function for collating the ID code between the portable device and the vehicle and making the engine startable when it is determined to be a correct ID code (see, for example, Patent Document 1).
[0003]
By the way, in recent years, there is an increasing need for adding further functions to portable devices.
[0004]
[Patent Document 1]
JP 2001-115702 A (page 2-5, FIG. 1)
[0005]
[Problems to be solved by the invention]
However, since the functions of portable devices are mainly those as described above, they do not meet the needs for adding more functions to recent portable devices.
[0006]
The present invention has been made in view of such circumstances, and an object of the present invention is to provide a highly convenient communication system that can perform various controls in addition to a vehicle using a portable device. .
[0007]
[Means for Solving the Problems]
  In order to solve the above-mentioned problem, the invention according to claim 1 is a vehicle-mounted device mounted on a vehicle and capable of wireless communication in a narrow area, and the vehicle-mounted device of the vehicle in a state where the vehicle is parked at least in a parking space. And in response to a request signal from one of the in-vehicle device and the communication device, the relay device provided to be capable of narrow-area wireless communication, a communication device that communicates with the in-vehicle device via the relay device A mobile device that transmits a code, and one of the in-vehicle device and the communication device is identified by an identification code from the mobile deviceWhenAnd establishing communication between the in-vehicle device and the communication device through narrow-band wireless communication via the relay device, and performing predetermined processing based on information obtained through or through the mutual communication.As an information exchange between the in-vehicle device and the communication device, processing for alarm and anti-theftThe main point is to execute.
[0008]
  According to this invention, one of the in-vehicle device and the communication device is identified by the identification code from the portable device.WhenThe in-vehicle device and the communication device establish mutual communication via the relay device, and predetermined processing is performed by mutual communication.As information processing between the in-vehicle device and the communication device, alarm and anti-theft processingExecute. For this reason, it is possible to perform various processes such as exchanging various information between the in-vehicle device and the communication device and performing predetermined processing such as alarming and theft prevention after confirming the identity with the identification code sent from the portable device. Excellent in properties.
[0009]
  The invention according to claim 2 is capable of narrow-band wireless communication with the in-vehicle device mounted in the vehicle and capable of narrow-area wireless communication, and the vehicle-mounted device of the vehicle in a state where the vehicle is parked at least in a parking space. A relay device provided; a communication device that communicates with the in-vehicle device via the relay device; and a portable device that transmits an identification code in response to a request signal from one of the in-vehicle device and the communication device. And when one of the vehicle-mounted device and the communication device receives the identification code, the vehicle-mounted device and the communication device establish mutual communication by narrow-band wireless communication via the relay device, and the vehicle-mounted device And predetermined processing corresponding to the side of the communication device that received the identification codeAs for one side which is the side which received the identification code among the in-vehicle device and the communication device, a process for receiving information from the other side and a process for transmitting information to the other sideIs executed through the mutual communication.
[0010]
  According to the present invention, when one of the in-vehicle device and the communication device receives the identification code transmitted from the portable device, the communication between the in-vehicle device and the communication device through the relay device via the relay device is established. The side that received the identification codeOne side which isIs the prescribed processThe process of receiving information from the other side and the process of transmitting information to the other sideAre executed via mutual communication. Since identity verification is performed using the identification code of the portable device, for example, when exchanging information, a highly confidential communication system can be provided. Further, it is possible to add further functions to the portable device as compared with the conventional case.
[0011]
  According to a third aspect of the present invention, in the communication system according to the first or second aspect, the in-vehicle device receives an identification code from the portable device existing in a communication area of a vehicle and receives the identification code in the communication area. When the presence of a portable device is detected, mutual communication is established with the communication device through narrow-band wireless communication via the relay device, and predetermined information is transmitted from the communication device.PC information stored in the personal computer constituting the communication deviceIs transmitted to the in-vehicle device.
[0012]
  According to the present invention, the in-vehicle device detects the presence by receiving the identification code from the portable device existing in the communication area of the vehicle, and based on that, the in-vehicle device communicates with the communication device via the relay device. The communication equipmentPC information stored in the personal computer constituting the communication deviceIs transmitted to the in-vehicle device. For example, when a portable device enters the communication area of the vehicle, the in-vehicle device receives an identification code transmitted from the portable device, and the in-vehicle device can automatically communicate with the communication device based on the identification code. As a result, predetermined information is received from the communication device.(PC information)Is automatically transmitted to the in-vehicle device, and for example, information between the communication device and the in-vehicle device can be synchronized.
[0013]
  According to a fourth aspect of the present invention, in the communication system according to the third aspect, the in-vehicle device has predetermined information.Vehicle information that is information about the vehicle on which the in-vehicle device is mountedWhen the presence of the portable device in the communication area is detected by receiving an identification code from the portable device existing in the communication area of the vehicle, the communication device via the relay device And the predetermined information stored in the communication deviceAs said PC informationIs downloaded to the in-vehicle information device via the relay device.
[0014]
  According to this invention, when the in-vehicle device detects the presence of the portable device in the communication area of the vehicle, the relay deviceThrough communication equipmentEstablish mutual communication with. And the in-vehicle device is predetermined information stored in the communication device.As PC informationIs downloaded to the in-vehicle information device provided to the device. For example, when a user goes out of the house with a vehicle, it is stored in the communication device by approaching the vehiclecomputerInformation is downloaded to the vehicle. And in the vehicle, the usercomputerYou can see information. Therefore, it is possible to provide a communication system that is very convenient for the user.
[0015]
  According to a fifth aspect of the present invention, in the communication system according to the first or second aspect, the communication device receives an identification code from the portable device existing at a predetermined position on the communication device side, and the portable device And detecting means for detecting the presence at the predetermined position, and detecting the presence of the portable device at the predetermined position by the detecting means to perform mutual communication with the in-vehicle device via the relay device by narrow area wireless communication. Established and predetermined information from the in-vehicle deviceVehicle information that is information about the vehicle on which the in-vehicle device is mountedIs transmitted to the communication device.
[0016]
  According to the present invention, when the communication device detects the presence of the portable device existing at the predetermined position on the communication device side by receiving the identification code, the communication device passes the relay device.CarPerforms mutual communication with the on-board device by narrow-band wireless communication. AndIn-vehicle deviceIs given informationVehicle information that is information about the vehicle on which the in-vehicle device is mountedThe aboveCommunication equipmentSend to. For example, when the portable device is placed at a predetermined position detected by the detection means, the communication device and the vehicle-mounted device can automatically communicate with each other via the relay device. As a result, predetermined information is received from the in-vehicle device.(Vehicle information)Is transmitted to the communication device, and for example, information between the communication device and the in-vehicle device can be synchronized.
[0017]
  According to a sixth aspect of the present invention, in the communication system according to the fifth aspect, the communication device has predetermined information.As communication terminal informationAnd when the presence of the portable device at a predetermined position on the side of the communication device is detected by the detection means, mutual communication with the in-vehicle device via the relay device is established, and the in-vehicle device Information stored in in-vehicle information equipmentAs the vehicle informationIs downloaded to the communication terminal via the relay device.
[0018]
  According to this invention, when the communication device detects the presence of the portable device by the detection means, the communication device and the in-vehicle device establish mutual communication via the relay device, and the predetermined information stored in the in-vehicle information deviceAs vehicle informationIs downloaded to a communication terminal provided in the communication device. For example, when the user returns home with a vehicle and places the portable device at a predetermined position in the home, the portable device is detected by the communication device, and mutual communication is established. Then, predetermined information is transmitted from the in-vehicle information device of the vehicle to the communication terminal.(Vehicle information)That can be downloaded and its predetermined information(Vehicle information)Can be viewed from a communication terminal at home. Therefore, it is possible to provide a communication system that is very convenient for the user.
[0019]
The invention according to claim 7 is capable of narrow-area wireless communication with the in-vehicle apparatus mounted on the vehicle and capable of performing narrow-area wireless communication, and the on-vehicle apparatus of the vehicle when the vehicle is parked at least in a parking space. A relay device provided; a communication device that communicates with the in-vehicle device via the relay device; and a portable device that transmits an identification code in response to a request signal from one of the in-vehicle device and the communication device. The communication device includes a detection unit that receives an identification code from the portable device existing at a predetermined position on the communication device side and detects that the portable device is present at the predetermined position; When the device detects that the vehicle has been started, it establishes mutual communication with the communication device through narrow-band wireless communication via the relay device, and a portable device corresponding to the vehicle is present at the predetermined position. When it is confirmed that, the gist to prohibit or cancel the start of the vehicle.
[0020]
According to the present invention, the communication device detects the presence of the portable device at a predetermined position. And when a vehicle starts, a vehicle-mounted apparatus mutually communicates with a communication apparatus via a relay apparatus. Then, when it is confirmed that the portable device corresponding to the vehicle is in a predetermined position by the communication, starting of the vehicle is prohibited or stopped. For this reason, it is possible to prevent theft of the vehicle.
[0021]
According to an eighth aspect of the present invention, in the communication system according to the seventh aspect, the in-vehicle device includes an engine control device, and the communication device detects that the portable device is present at the predetermined position. Nevertheless, the gist is to stop the engine by the engine control device when the engine of the vehicle is started.
[0022]
According to the present invention, when the vehicle is started even though the presence of the portable device is detected by the communication device, the engine is stopped by the engine control device. Thereby, it is possible to prevent theft of the vehicle.
[0023]
DETAILED DESCRIPTION OF THE INVENTION
(First embodiment)
Hereinafter, an embodiment in which the present invention is embodied in a communication system used between a house and a vehicle will be described with reference to FIGS.
[0024]
FIG. 1 shows a schematic diagram of a communication system in the present embodiment. As shown in the figure, the communication system includes a portable device (electronic key) 1, an in-vehicle device 10 mounted on the vehicle 2, a relay device 20 disposed in the garage 3, and a communication provided in the house H. Device 30. The portable device 1 can communicate with the in-vehicle device 10 and the communication device 30, and FIG. Further, the in-vehicle device 10 can perform narrow-area wireless communication with the relay device 20. The portable device 1 is used in a smart keyless system. When the user (owner) who owns the portable device 1 approaches the vehicle 2, the door of the vehicle 2 is unlocked, while the user who owns the portable device 1 moves the vehicle 2. When moving away from the vehicle, the door of the vehicle 2 is locked. Also, the engine is allowed to start only after the ID code transmitted from the portable device 1 is verified and the identity is confirmed, and then the engine is started by pressing an engine switch (not shown). It is like that.
[0025]
For example, the relay device 20 and the communication device 30 are electrically connected from a garage 3 by a wired line (communication line) laid in the house H, and can communicate with each other by a wired line. For this reason, the in-vehicle device 10 and the communication device 30 can communicate via the relay device 20. Note that the communication between the relay device 20 and the communication device 30 is not limited to a wired connection but can be configured wirelessly.
[0026]
After returning home and parking the vehicle 2 in the garage 3, the user carries the portable device 1 and enters the house H. In the house H, a personal computer (hereinafter referred to as a personal computer) 32 that constitutes the communication device 30 and a cradle 31 as a detection means are disposed, and the portable device 1 is installed (set) in the cradle 31. It has become. The cradle 31 detects this when the portable device 1 is set in the state shown in FIG. 1 and mediates communication between the personal computer 32 and the portable device 1 using the detection as a trigger. When the personal computer 32 obtains an ID code through communication with the portable device 1 and verifies the ID code, the personal computer 32 logs on the portable device 1. That is, when the portable device 1 is logged on to the personal computer 32, it is possible to detect the timing when the user returns home and installs the portable device 1 in the cradle 31 in the house H.
[0027]
On the other hand, when the user uses the vehicle 2 for going out, he removes the portable device 1 from the cradle 31 and carries it to go out of the house H. When the user approaches the vehicle 2 and enters the communication area, the in-vehicle device 10 receives the ID code transmitted from the portable device 1, and if the in-vehicle device 10 verifies the identity, the door is unlocked. The That is, when the in-vehicle device 10 is verified by collating the ID code from the portable device 1, it is possible to detect the timing when the user who has left the house H is about to get into the vehicle 2.
[0028]
In the present embodiment, the user manages the scheduler (schedule management software) and necessary data such as e-mails by both the in-vehicle device 10 mounted on the vehicle 2 and the personal computer 32 in the house H. The in-vehicle device 10 and the personal computer 32 communicate with each other via the relay device 20 so that the synchronization of the scheduler and the matching of necessary data such as e-mail are performed on the in-vehicle device 10 side and the personal computer 32 side. At the timing when the user tries to get into the vehicle 2, the scheduler of the in-vehicle device 10 is synchronized with the scheduler of the personal computer 32, and necessary data such as mail is downloaded from the personal computer 32 to the in-vehicle device 10. On the other hand, the scheduler of the personal computer 32 is synchronized with the scheduler of the in-vehicle device 10 at the timing when the user gets out of the vehicle 2 and returns home and sets the portable device 1 in the cradle 31, and e-mail or the like is required from the in-vehicle device 10 to the personal computer 32. Data is being downloaded.
[0029]
FIG. 2 shows a block diagram of the communication system. As shown in the figure, the portable device 1 includes a receiving circuit 4, a transmitting circuit 5, and a microcomputer (hereinafter referred to as a microcomputer) 6. A reception antenna 4 a is connected to the reception circuit 4, and a transmission antenna 5 a is connected to the transmission circuit 5. When the receiving circuit 4 is connected to the microcomputer 6 and receives a request signal as a request signal output from the in-vehicle device 10 by the receiving antenna 4a, the receiving circuit 4 demodulates the signal into a pulse signal and inputs the pulse signal to the microcomputer 6. The transmission circuit 5 is connected to the microcomputer 6, modulates the ID code signal output from the microcomputer 6 into a radio wave having a predetermined frequency, and transmits the modulated signal to the outside via the transmission antenna 5a. Specifically, the microcomputer 6 is a CPU unit including a CPU, a ROM, a RAM, and the like (not shown), and includes a nonvolatile memory 6a. When the request signal is input from the reception circuit 4, the microcomputer 6 outputs an ID code signal including a predetermined ID code as an identification code stored in advance in the memory 6 a via the transmission circuit 5.
[0030]
Further, the portable device 1 can communicate with the communication device 30, and more specifically, can communicate with the personal computer 32 via a cradle 31 described later provided in the communication device 30. The communication with the personal computer 32 is basically the same as the communication with the in-vehicle device 10 described above, and when a request signal transmitted from the personal computer 32 through the cradle 31 is received, an ID code signal as a response is sent to the cradle 31. Send to.
[0031]
The in-vehicle device 10 includes a dedicated short range communication (DSRC) unit 11, an in-vehicle information device 12, and a controller 13.
The in-vehicle information device 12 is, for example, a device such as a device or a car navigation system that stores the mileage, moving location, fuel consumption, etc. of the vehicle, and can receive e-mail, the Internet, etc. Corresponds to this. The in-vehicle information device 12 can download the personal computer information as the predetermined information transmitted from the personal computer 32 via the DSRC unit 11, and conversely, the vehicle information as the predetermined information stored in the vehicle information signal To the DSRC unit 11.
[0032]
The DSRC unit 11 is configured to be capable of mutual communication with the relay device 20 through narrowband wireless communication. Specifically, the DSRC unit 11 is configured by a DSRC chip (not shown) capable of performing narrowband wireless communication only within a limited range. ing. The DSRC unit 11 is electrically connected to the in-vehicle information device 12 and the smart ECU 14 and is operated and stopped based on an operation signal and a stop signal transmitted from the smart ECU 14. When the DSRC unit 11 receives the operation signal from the smart ECU 14, the DSRC unit 11 transmits a communication request signal to the relay device 20, thereby establishing mutual communication with the relay device 20. When the stop signal is received, the mutual communication with the relay device 20 is canceled. When the DSRC unit 11 receives the vehicle information signal from the in-vehicle information device 12, the DSRC unit 11 converts the vehicle information signal into a packet format suitable for wireless communication, and encrypts and transmits the vehicle information signal.
[0033]
The controller 13 includes a smart ECU 14, a transmission circuit 15, a reception circuit 16 and an RF receiver 17. The smart ECU 14 is connected to a door lock driving device 18 and an engine control device 19 provided in the vehicle 2. The door lock drive device 18 includes an actuator (not shown) that locks and unlocks the door lock, and performs drive control of the actuator based on an input electric signal. The engine control device 19 is a device that performs drive control of a cell motor and a fuel supply control device (both not shown) based on an input electric signal. Antennas 15a and 16a are connected to the transmission circuit 15 and the reception circuit 16, respectively. An antenna 17 a is connected to the RF receiver 17. The transmission circuit 15 modulates the request signal output from the smart ECU 14 into a radio wave having a predetermined frequency, and outputs it to a predetermined area around the vehicle 2 via the antenna 15a. Therefore, communication between the portable device 1 and the in-vehicle device 10 is possible within the output area of the request signal. The receiving circuit 16 receives the ID code signal transmitted from the portable device 1 via the antenna 16a, demodulates it into a pulse signal, and inputs it to the smart ECU.
[0034]
The smart ECU 14 intermittently outputs a request signal to the transmission circuit 15 based on a predetermined program stored in the ROM. Further, when the ID code signal is input from the receiving circuit 16, the smart ECU 14 compares the ID code stored in the smart ECU 14 with the ID code included in the ID code signal. Then, the smart ECU 14 outputs a driving signal (unlocking driving signal) indicating unlocking to the door lock driving device 18 when the ID codes match, thereby unlocking the door lock. That is, the smart ECU 14 unlocks the door lock when communication with the portable device 1 is established in the door lock locked state. In contrast, when the smart ECU 14 cannot receive the ID code signal, the smart ECU 14 outputs a drive signal (locking drive signal) indicating locking to the door lock driving device 18 to lock the door lock. That is, the smart ECU 14 locks the door lock when communication with the portable device 1 is not established in the unlocked state of the door lock. For this reason, since only the user approaches the vehicle 2 and positions the portable device 1 within the output area of the request signal, communication is automatically performed between the portable device 1 and the in-vehicle device 10, so that any operation is performed. The door lock can be unlocked.
[0035]
When the smart ECU 14 receives the ID code from the portable device 1 in the vehicle, the smart ECU 14 compares the ID code transmitted from the portable device 1 with the ID code stored in the smart ECU 14, and transmits a drive permission signal to the engine control device 19 if they match. . When the drive permission signal is input, the engine control device 19 permits the driving of the cell motor. In this state, the user starts an engine by operating an engine switch (not shown) provided at a predetermined position in front of the driver's seat.
[0036]
Further, the smart ECU 14 compares the ID code included in the ID code signal transmitted from the portable device 1 with the ID code stored in the smart ECU 14 and matches the ID code. ) And an operation signal is transmitted to the DSRC unit 11. When the smart ECU 14 receives a communication request signal transmitted from the personal computer 32 via the relay device 20, the smart ECU 14 compares the ID code included in the communication request signal with the ID code stored in its own memory. Even when they match, an operation signal is transmitted to the DSRC unit 11.
[0037]
The relay device 20 includes a DSRC unit 21 and an RF transmitter 22. An antenna 22 a is connected to the RF transmitter 22. The DSRC unit 21 is configured to be capable of narrow-band wireless communication with the DSRC unit 11 of the in-vehicle device 10 and is configured by a DSRC chip (not shown) as described above. When the DSRC unit 21 receives the communication request signal transmitted from the in-vehicle device 10, the DSRC unit 21 establishes mutual communication with the DSRC unit 11 of the in-vehicle device 10 through narrow area wireless communication. The DSRC unit 21 establishes mutual communication with the DSRC unit 11 of the in-vehicle device 10 and transmits a communication request signal to the personal computer 32 in order to establish communication with the personal computer 32. On the other hand, when receiving the communication request signal from the personal computer 32, the RF transmitter 22 modulates the communication request signal into a radio wave having a predetermined frequency, and transmits the communication request signal to the in-vehicle device 10 via the antenna 22a.
[0038]
The communication device 30 is disposed in the house H and includes a personal computer 32 and a cradle 31. The personal computer 32 is electrically connected to the relay device 20. A program for a communication system is installed in the personal computer 32. When the personal computer 32 receives a communication request signal transmitted from the relay device 20 by the program, the ID code included therein and the ID stored in the personal computer 32 are stored. Compare with code. If the ID codes match, communication with the relay device 20 is established. When the communication is established, the personal computer 32 uses the personal information stored in the relay device 20 as a personal computer information signal, such as a mail or a scheduler set in advance by the user so as to be transmitted by a program. Send. At this time, the personal computer 32 converts the personal computer information signal into a packet system suitable for wireless communication and encrypts and transmits it.
[0039]
In addition, when receiving the detection signal from the cradle 31, the personal computer 32 intermittently transmits a request signal as a request signal to the cradle 31. When the ID code signal of the portable device 1 is input from the cradle 31, the ID code included in the ID code signal is compared with the ID code stored in itself. If it is correct, the portable device 1 is logged on and a communication request signal including an ID code is transmitted to the relay device 20.
[0040]
The cradle 31 is configured to be able to place a portable device as shown in FIG. 1, and is used when detecting the presence of the portable device 1. The cradle 31 includes a detection unit 33, a transmission circuit 34, and a reception circuit 35, and each is electrically connected to the personal computer 32. Antennas 34a and 35a are connected to the transmission circuit 34 and the reception circuit 35, respectively. The detection unit 33 detects the presence or absence of the portable device 1, and transmits a detection signal to the personal computer 32 when the portable device 1 is placed by the user. The transmission circuit 34 modulates a request signal transmitted from the personal computer 32 into a radio wave having a predetermined frequency, and transmits the modulated signal through the antenna 34a. When receiving the ID code signal transmitted from the portable device, the receiving circuit 35 demodulates it into a pulse signal and inputs it to the personal computer.
[0041]
Next, the communication system in the present embodiment will be described with reference to the sequence charts shown in FIGS.
<1> When establishing mutual communication from the in-vehicle device side
FIG. 3 shows a sequence chart in the case where mutual communication is established from the in-vehicle device side. The vehicle 2 is parked in a parking space below the garage 3. As shown at T101 in the figure, the in-vehicle device 10 intermittently outputs a request signal to a predetermined area around the vehicle 2. As indicated by S101, the portable device 1 enters the output area of the request signal by approaching the vehicle 2, and receives the request signal and transmits an ID code signal in response thereto. In T102, the in-vehicle device 10 compares the ID code included in the ID code signal with the ID code stored in itself. If they match, the unlocking drive signal is transmitted to the door lock driving device 18 to unlock the door lock, and the DSRC unit 11 is operated by transmitting the operation signal to the DSRC unit 11. In T103, the DSRC unit 11 transmits a communication request signal to the relay device 20. Then, as indicated by U101 and T104, the DSRC unit 21 of the relay device 20 receives the communication request signal transmitted from the in-vehicle device 10, whereby the DSRC unit 21 of the relay device 20 and the DSRC unit 11 of the in-vehicle device 10 are received. Mutual communication by narrow-area wireless communication is established with Then, as indicated by U <b> 102, the relay device 20 establishes mutual communication and transmits a communication request signal to the communication device 30 in order to enable communication with the communication device 30. And as shown to U103 and P101, if the communication apparatus 30 receives a communication request signal with the personal computer 32, it will compare the ID code contained in it with the ID code memorize | stored in self. If the ID codes match, communication is established between the communication device 30 and the relay device 20. As a result, communication between the relay device 20 and the communication device 30 is established, and since communication between the in-vehicle device 10 and the relay device 20 has already been established, communication between the communication device 30 and the in-vehicle device 10 is established. It will be done. For this reason, it can synchronize between the vehicle-mounted apparatus 10 and the communication apparatus 30, and it becomes possible to mutually exchange information.
[0042]
Then, as shown in P102 and T105, when the communication with the relay device 20 is established, the personal computer 32 encrypts personal computer information that is set in advance by the user according to the program and sends it to the relay device 20 as a personal computer information signal. Send. On the other hand, the in-vehicle device 10 also encrypts the vehicle information to the relay device 20 and transmits it as a vehicle information signal. Then, as indicated by U104, the relay device 20 transmits the vehicle information signal transmitted from the in-vehicle device 10 to the personal computer 32 and the personal computer information signal transmitted from the personal computer 32 to the in-vehicle device 10, respectively. As shown in T106 and P103, when the in-vehicle device 10 receives the personal computer information signal, the in-vehicle device 10 releases the encryption and downloads the personal computer information to the in-vehicle information device 12. Thereby, the user can view the personal computer information downloaded from the personal computer 32 in the vehicle. On the other hand, when receiving the vehicle information signal, the personal computer 32 cancels the encryption and stores the vehicle information in itself. Thereby, each other's information can be made into the newest information.
[0043]
On the other hand, the in-vehicle device 10 cancels the mutual communication when it becomes impossible to detect the presence of the portable device 1 in a state where the mutual communication with the relay device 20 is established. That is, mutual communication is canceled when the portable device 1 does not exist within the output range of the request signal transmitted from the in-vehicle device 10.
[0044]
<2> When establishing mutual communication from the communication device side
FIG. 4 shows a sequence chart in the case where mutual communication is established from the communication device side. The vehicle 2 is parked in a parking space below the garage 3. As shown in P201, when the portable device 1 is placed, the cradle 31 detects the presence of the portable device 1 by the detection unit 33 and transmits a detection signal notifying the personal computer 32 of the presence. Then, as shown at P202, when the personal computer 32 receives the detection signal, it transmits a request signal to the transmission circuit 34 of the cradle 31, and the transmission circuit 34 transmits the request signal via the antenna 34a. As shown in S201, when the portable device 1 receives a request signal from the cradle 31, the portable device 1 transmits an ID code signal as a response thereto. In P203, when the personal computer 32 receives the ID code signal via the receiving circuit 35 of the cradle 31, the ID code included in the ID code signal is compared with the ID code stored in the personal computer 32. Log on. The request signal continues to be transmitted intermittently even after logging on to confirm the presence of the portable device 1. On the other hand, even if a third party places a simple key or a portable device of another vehicle on the cradle 31, the personal computer 32 does not receive a legitimate ID code signal, so that it is not logged on illegally.
[0045]
As shown in P204 and U201, when the portable device 1 is logged on to the personal computer 32, communication is established between the communication device 30 and the relay device 20. And a communication request signal is transmitted with respect to the relay apparatus 20, as shown to P205. In U202, when the RF transmitter 22 of the relay device 20 receives the communication request signal, the communication request signal is transmitted to the in-vehicle device 10 via the antenna 22a. In T201, when the RF receiver 17 of the in-vehicle device 10 receives the communication request signal via the antenna 17a, the communication request signal is input to the smart ECU 14. The smart ECU 14 compares the ID code included in the communication request signal with the ID code stored in itself, and if they match, transmits an operation signal to the DSRC unit 11 to operate the DSRC unit 11. Thereby, as shown by U203 and T202, the in-vehicle device 10 and the relay device 20 establish mutual communication. For this reason, it can synchronize between the vehicle-mounted apparatus 10 and the communication apparatus 30, and it becomes possible to mutually exchange information.
[0046]
Since P206 and T203 and after are the same as in the case of <1> described above, description thereof is omitted.
On the other hand, the communication device 30 cancels communication when it becomes impossible to detect the presence of the portable device 1 by the personal computer 32 and the cradle 31. That is, the communication is terminated when the detection signal from the cradle 31 or the ID code signal from the portable device 1 cannot be received.
[0047]
According to the embodiment, the following effects can be obtained.
(1) The communication system including the in-vehicle device 10, the relay device 20, the communication device 30, and the portable device 1 can communicate with the communication device 30 from the in-vehicle device 10 side, and conversely, the communication device 30. It is possible to communicate with the in-vehicle device 10 from the side. For this reason, it is possible to update each other's information by downloading information mutually with in-vehicle information equipment 12 and personal computer 32 in house H. For this reason, for example, when the user goes out in the vehicle 2, when it is not possible to see the e-mail at home, the in-vehicle information device is established by establishing mutual communication from the communication device 30 side to the in-vehicle device 10. PC information such as e-mail can be sent to 12, and the user can view e-mail and the like in the car. Moreover, when returning home, the relay apparatus 20 with which the garage 3 is equipped and the vehicle-mounted apparatus 10 communicate automatically, and the information memorize | stored in the vehicle 2 can also be downloaded to the personal computer 32 in the house H. Therefore, it is very convenient for the user.
[0048]
(2) The DSRC unit 11 of the in-vehicle device 10 is activated when the portable device 1 approaches. For this reason, the user automatically communicates the in-vehicle device and the communication device without doing anything, and updates the information to each other by downloading information between the in-vehicle information device 12 and the personal computer 32. It is convenient and convenient.
[0049]
(3) The communication device 30 includes a personal computer 32 and a cradle 31, and logs on the portable device based on the detection signal transmitted from the detection unit 33 of the cradle 31 and the ID code signal transmitted from the portable device 1, thereby communicating. Made possible. For this reason, even if a third party places another portable device or the like on the cradle 31, the user cannot log on and cannot communicate. Therefore, unauthorized access by a third party can be prevented and security is excellent.
[0050]
(4) Using the ID code of the portable device 1, personal computer information is downloaded to the in-vehicle information device 12 of the in-vehicle device 10, and vehicle information is downloaded to the personal computer 32. Since this is a system that is always used when communicating with a portable device having an ID code unique to each vehicle, it is possible to improve confidentiality.
[0051]
(5) Since communication is performed using an ID code of a portable device that is unique to each vehicle, even when there are a plurality of vehicles, it is possible to deal with each vehicle.
(Second Embodiment)
Next, 2nd Embodiment using this invention as a parking management system in a condominium provided with a some parking space is described according to FIGS. The present embodiment is different in that the communication system is used as a parking management system, and the configuration is substantially the same as the first embodiment. Hereinafter, a description will be given centering on differences from the first embodiment.
[0052]
As shown in FIG. 7, a plurality of vehicles 2 are parked in the parking lot of the apartment 36. The DSRC unit 21 (see FIG. 2) of the relay device 20 is configured by a DSRC chip capable of narrow-area wireless communication only within a certain limited range. In this embodiment, communication is possible in a parking lot of an apartment. is there. The vehicle 2 is equipped with the in-vehicle device 10 as in the first embodiment, and enters the monitoring mode when communication is established from the communication device 30 side. That is, when the portable device 1 is placed on the cradle 31, the portable device 1 is logged on to the personal computer 32, and the monitoring mode is set when communication is established. In the monitoring mode, the in-vehicle device 10 stops the engine when the engine starts even though the portable device 1 is logged on. Specifically, when the engine is started, the smart ECU 14 transmits a stop signal to the engine control device 19 to stop the engine. There is a management office in the apartment 36, and the management office is provided with a communication device 30. There are as many cradles 31 as there are vehicles 2, and the portable devices 1 of the respective vehicles 2 can be logged on to the personal computer 32 by being placed on the cradle 31.
[0053]
On the other hand, when the portable device 1 moves from the cradle 31, the detection unit 33 transmits a non-detection signal to the personal computer 32. Thereby, the personal computer 32 logs off the portable device 1 and transmits a log off signal to the relay device 20.
[0054]
When the relay device 20 receives the logoff signal transmitted from the personal computer 32, the relay device 20 transmits the logoff signal from the DSRC unit 21 to the in-vehicle device 10. And the vehicle equipment 10 will cancel | release mutual communication with the relay apparatus 20, if a logoff signal is received.
[0055]
In the present embodiment, a plurality of vehicles 2 are monitored. Since communication is performed based on an ID code unique to each vehicle, a plurality of vehicles 2 can be monitored. In this case, by providing the cradle 31 according to the number of vehicles 2, the personal computer 32 can communicate with each vehicle 2 via the relay device 20 based on the ID code unique to each vehicle 2.
[0056]
Next, the parking management system in the present embodiment will be described according to the sequence charts shown in FIGS. Note that the process until the communication is established from the communication device 30 side is the same as in the case of <2> shown in the first embodiment, and a description thereof will be omitted.
[0057]
As shown in FIG. 5, at T303, the in-vehicle device 10 enters a monitoring mode when mutual communication with the relay device 20 is established. Then, as indicated by T304, when the engine is started in the monitoring mode, the smart ECU 14 transmits a stop signal to the engine control device 19 because the engine has started even though the portable device 1 is in the logon state. Stop the engine. For this reason, it is possible to prevent the vehicle 2 from being stolen.
[0058]
Next, the procedure for canceling the monitoring mode will be described with reference to FIG. While the in-vehicle device 10 is in the monitoring mode, the portable device 1 moves from the cradle 31 as shown in S302. Thereby, in P306, since the cradle 31 does not detect the presence of the portable device 1, the personal computer 32 logs off the portable device 1. The personal computer 32 logs off the portable device 1 and transmits a log off signal to the relay device 20. As indicated by U304, when the relay device 20 receives the logoff signal, the DSRC unit 21 transmits the logoff signal to the in-vehicle device 10. At T <b> 305, the in-vehicle device 10 receives the logoff signal via the DSRC unit 11, thereby canceling the mutual communication. And while canceling | releasing mutual communication, the vehicle-mounted apparatus 10 transmits a request signal intermittently to the predetermined area | region of the periphery of the vehicle 2. FIG. Then, as shown in S303, when the portable device 1 receives the request signal by approaching the vehicle 2, an ID code signal is transmitted as a response thereto. And as shown by T306, when receiving the ID code signal, the in-vehicle device 10 unlocks the door lock and cancels the monitoring mode.
[0059]
According to this embodiment, the following effects can be obtained.
(1) When the portable device 1 is placed on the cradle 31, the portable device 1 is logged on, and communication is established from the personal computer 32 side so that the in-vehicle device 10 enters a monitoring mode for monitoring the vehicle. For this reason, even if the portable device 1 is logged on to the personal computer 32, the engine can be stopped when the engine of the vehicle 2 is started. Therefore, it is possible to prevent the vehicle from being stolen.
[0060]
In addition, you may change each said embodiment as follows.
In the first embodiment, the entrance door of the house may be locked / unlocked by remote operation by the portable device 1, and a communication system based on the lock may be used. Specifically, as shown in FIG. 8, the entrance door is provided with an entrance device 40 that can communicate with the portable device 1. The configuration of the entrance device 40 is basically the same as that of the in-vehicle device 10, and includes a smart ECU 41, a transmission circuit 42, a reception circuit 43, and a door lock driving device 44. Antennas 42a and 43a are connected to the transmission circuit 42 and the reception circuit 43, respectively. And when locked / unlocked by remote operation of the portable device 1, the smart ECU 41 transmits a signal notifying the fact to the personal computer 32, and the personal computer 32 communicates with the in-vehicle device 10 based on the signal. For example, the entrance door receives the ID code from the inside and unlocks it, and when the ID code from the outside is not received, it is determined that the door is out and data such as mail is downloaded from the personal computer 32 to the in-vehicle device 10. On the other hand, the front door receives the ID code from the outside and unlocks it. When the ID code from the inside is not received, it is determined that the house is going home, and data such as mail is downloaded from the in-vehicle device 10 to the personal computer 32. Of course, the scheduler may be updated between the in-vehicle device 10 and the personal computer 32 instead of downloading data such as mail.
[0061]
In each of the above embodiments, the communication system may be used as an alarm system when there is an unauthorized entry into a house. In this case, a door courtesy switch (detection means) 45 is provided in the entrance apparatus 40 shown in FIG. The door courtesy switch 45 detects opening / closing of the entrance door. Then, when the portable device 1 is placed on the cradle 31 and the entrance door is opened despite being logged on, only the signal indicating that fact is input to the smart ECU 41 by the door courtesy switch 45. . Thereby, the smart ECU 41 regards that there has been an unauthorized intrusion, and transmits a signal notifying the personal computer 32 to that effect. And it communicates with the vehicle-mounted apparatus 10 from the personal computer 32, and uses the horn and headlamp of a vehicle as an alarm function.
[0062]
  ・ Each implementationFormIn the above, the communication system may be used as an alarm system when there is an unauthorized intrusion into the vehicle 2. In this case, the vehicle 2 is provided with a door courtesy switch (not shown) as detection means for detecting opening and closing of the door. If the door of the vehicle 2 is unlocked even though the portable device 1 is placed on the cradle 31 and logged on to the personal computer 32, a horn or headlamp provided on the vehicle 2 is used as an alarm. Use as an alarm function.
[0063]
In the first embodiment, there is one vehicle, but there may be a plurality of vehicles. Since the determination is based on the ID code unique to each vehicle, there is no problem even if there are a plurality of vehicles, the information on each vehicle 2 can be updated to the latest, and the information on each vehicle is downloaded to the personal computer 32.
[0064]
In the first embodiment, the following may be performed. The vehicle 2 enters the parking space of the garage 3, and the in-vehicle device 10 receives the identification code of the portable device 1 and detects the presence of the portable device 1 in the vehicle 2. When communication is established, a command is issued to the communication device 30 via the relay device 20 to light the garage lamp.
[0065]
In the first embodiment, the in-vehicle device 10 and the communication device 30 communicate with each other by automatically collating the ID code when the user who has the portable device 1 approaches. Not limited to this, communication is not automatically performed by collating the ID code, but communication may be performed when the user operates the operation unit provided in the vehicle with the collated ID code. Good. For example, communication may be performed when a switch or the like provided in the vehicle is pressed. In this way, communication can be performed with the intention of the user.
[0066]
In the second embodiment, the vehicle is monitored by the management office. However, the present invention is not limited to this, and the vehicle may be used when monitoring the vehicle in a general house. One vehicle may also be used.
[0067]
In the second embodiment, the engine is stopped when the engine of the vehicle 2 is started. However, the engine may not be started from the beginning. In this case, the smart ECU 14 can be in a state where the portable device 1 is logged on by not transmitting an operation signal to the engine control device 19. Further, when the engine is started and the vehicle 2 moves while the portable device 1 is logged on, the engine is stopped when the in-vehicle device 10 and the relay device 20 cannot communicate with each other. Good. In any case, it is possible to prevent the vehicle 2 from being stolen.
[0068]
In each of the above embodiments, the in-vehicle device and the relay device communicate with each other by narrowband wireless communication, but may be wireless communication such as IrDA, Bluetooth (R), and ZigBee.
[0069]
In each of the above embodiments, the personal computer 32 transmits a request signal via the cradle 31, and the portable device 1 logs on the portable device 1 by transmitting an ID code signal in response thereto. However, the present invention is not limited to this, and the portable device 1 generally includes a mechanical key. Therefore, the portable device 1 may be determined by tracing the groove of the mechanical key and logged on.
[0070]
  The technical ideas that can be grasped from the above embodiment and other examples will be described below.
  (1)In the communication system,The in-vehicle device is,in frontAfter confirming the identity with the identification code from the portable deviceAs a predetermined state,When a state in which an operation unit provided in the vehicle is operated is detected, mutual communication is established between the in-vehicle device and the communication device through narrow-band wireless communication via the relay device.The
[0071]
  (2)In the communication system,The communication device is disposed in a building such as a house having the parking space on a site or a building managing the parking space.The
[0072]
(3) A vehicle-mounted device mounted on a vehicle capable of narrow-area wireless communication, a relay device provided in a state where the vehicle is at least parked in a parking space and capable of narrow-band wireless communication with the vehicle-mounted device, and the relay A communication device that communicates with the in-vehicle device via the device, an entrance device that locks and unlocks the door, and an identification code in response to a request signal from any of the in-vehicle device, the communication device, and the entrance device A portable device and detecting means for detecting that the door is unlocked without collating the identification code from the portable device, and the entrance device confirms the identity by comparing the identification code received from the portable device The door is unlocked, and the communication device determines that the portable device is present at a predetermined position on the communication device side based on an identification code received from the portable device. The device detects a detection result of detecting that the door is unlocked by the detection means without collating the identification code from the portable device, even though the portable device is present at a predetermined position on the communication device side. When receiving from a front door device, it establishes mutual communication with the in-vehicle device via the relay device, and commands the in-vehicle device to cause the vehicle to perform an alarm operation using at least one of a horn and a headlamp. Communication system.
[0073]
(4) A vehicle-mounted device that is mounted on a vehicle and capable of performing narrow-area wireless communication, and a relay device that is capable of narrow-area wireless communication with the vehicle-mounted device of the vehicle when the vehicle is parked at least in a parking space. A communication device that communicates with the in-vehicle device via the relay device, and a portable device that transmits an identification code in response to a request signal from one of the in-vehicle device and the communication device, When narrow-area wireless communication with the relay device is established in a state where the identification code is received and the presence of a portable device in the vehicle is detected, a command is issued to the communication device via the relay device to turn on the garage lamp A communication system.
[0074]
(5) A vehicle-mounted device that is mounted on a vehicle and capable of wireless communication with a narrow area, a relay device that is capable of narrow-band wireless communication with the vehicle-mounted device in a state where the vehicle is parked at least in a parking space, and the relay A communication device that communicates with the in-vehicle device via a device, a door device that locks and unlocks a vehicle door, and a portable device that transmits an identification code in response to a request signal from either the in-vehicle device or the communication device And detecting means for detecting the unlocking of the door, the in-vehicle device collates the identification code received from the portable device and confirms the identity to drive the door device to unlock the door. The communication device determines the presence of the portable device at a predetermined position on the communication device side based on the identification code received from the portable device, and the in-vehicle device is the portable device by the detection means. When it is detected that the door is unlocked without verification of the identification code, the communication device establishes mutual communication with the communication device via the relay device and informs that the door is unlocked. When a signal indicating that the door has been unlocked despite the presence of the portable device at a predetermined position on the communication device side is received as a response, using at least one of a horn and a headlamp provided in the vehicle A communication system characterized by an alarm operation.
[0075]
【The invention's effect】
According to the present invention, it is possible to perform various controls using a portable device and improve convenience.
[Brief description of the drawings]
FIG. 1 is a schematic diagram of a communication system in a first embodiment.
FIG. 2 is a block diagram of a communication system.
FIG. 3 is a sequence chart in the case where mutual communication is established from the in-vehicle device side in the first embodiment.
FIG. 4 is a sequence chart in a case where mutual communication is established from the communication device side in the first embodiment.
FIG. 5 is a sequence chart of a vehicle antitheft system according to a second embodiment.
FIG. 6 is a sequence chart showing a release procedure of the vehicle antitheft system in the second embodiment.
FIG. 7 is a schematic diagram of a communication system in a second embodiment.
FIG. 8 is a block diagram of a communication system in another example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Portable machine, 2 ... Vehicle, 3 ... Garage, 10 ... In-vehicle device, 11 ... DSRC part, 12 ... In-vehicle information equipment, 13 ... Controller, 18 ... Door lock drive device, 19 ... Engine control device, 20 ... Relay device , 21... DSRC section, 30 .. communication device, 31... Cradle as detection means, 32 .. personal computer as communication terminal.

Claims (8)

A vehicle-mounted device mounted in a vehicle capable of wireless communication with a narrow area, a relay device provided in a state where the vehicle is at least parked in a parking space and capable of performing narrow-band wireless communication with the vehicle-mounted device of the vehicle, and the relay A communication device that communicates with the in-vehicle device via a device, and a portable device that transmits an identification code in response to a request signal from one of the in-vehicle device and the communication device,
When one of the communication device and the vehicle device has identity confirmed by identification code from the portable device, thereby establish mutual communication by the relay device short range radio communication via the said onboard apparatus and the communication device, As a predetermined process based on the information obtained through the mutual communication or the mutual communication, a process for exchanging information between the in-vehicle device and the communication device, a warning and a theft prevention is performed. Communication system. A vehicle-mounted device mounted in a vehicle capable of wireless communication with a narrow area, a relay device provided in a state where the vehicle is at least parked in a parking space and capable of performing narrow-band wireless communication with the vehicle-mounted device of the vehicle, and the relay A communication device that communicates with the in-vehicle device via a device, and a portable device that transmits an identification code in response to a request signal from one of the in-vehicle device and the communication device,
When one of the vehicle-mounted device and the communication device receives the identification code, the vehicle-mounted device and the communication device establish mutual communication by narrow-band wireless communication via the relay device, and the vehicle-mounted device and the communication device As a predetermined process corresponding to the side that has received the identification code in the communication device, one side of the in- vehicle device and the communication device that has received the identification code receives information from the other side. A communication system, wherein the process and the process of transmitting information to the other side are executed via the mutual communication. When the in-vehicle device receives an identification code from the portable device existing in the communication area of the vehicle and detects the presence of the portable device in the communication area, the on-vehicle device communicates with the communication device via the relay device. The personal computer information memorize | stored in the personal computer which comprises this communication apparatus is transmitted to the said vehicle-mounted apparatus as predetermined information from the said communication apparatus, and the mutual communication by communication is transmitted to the said vehicle-mounted apparatus. The communication system described. The vehicle-mounted device includes vehicle- mounted information equipment that stores vehicle information that is information related to a vehicle on which the vehicle-mounted device is mounted as predetermined information , and receives an identification code from the portable device that exists in a communication area of the vehicle. When the presence of the portable device in the communication area is detected, mutual communication with the communication device via the relay device is established, and the personal computer information is stored as predetermined information stored in the communication device. The communication system according to claim 3, wherein the information is downloaded to the in-vehicle information device via a relay device. The communication device includes a detection unit that receives an identification code from the portable device existing at a predetermined position on the communication device side and detects that the portable device is present at the predetermined position. When the presence of the portable device at a position is detected, mutual communication is established with the in-vehicle device via the relay device through narrow-area wireless communication , and the vehicle-mounted device is mounted as predetermined information from the in- vehicle device. The communication system according to claim 1 or 2, wherein vehicle information which is information is transmitted to the communication device. The communication device includes a communication terminal that stores communication terminal information as predetermined information. When the detection unit detects the presence of the portable device at a predetermined position on the communication device side, the in-vehicle device via the relay device The vehicle information is downloaded to the communication terminal via the relay device as predetermined information stored in an in-vehicle information device provided in the in-vehicle device. 5. The communication system according to 5. A vehicle-mounted device mounted in a vehicle capable of wireless communication with a narrow area, a relay device provided in a state where the vehicle is at least parked in a parking space and capable of performing narrow-band wireless communication with the vehicle-mounted device of the vehicle, and the relay A communication device that communicates with the in-vehicle device via a device, and a portable device that transmits an identification code in response to a request signal from one of the in-vehicle device and the communication device,
The communication device includes a detection unit that receives an identification code from the portable device existing at a predetermined position on the communication device side and detects that the portable device exists at the predetermined position;
On the other hand, when the in-vehicle device detects that the vehicle has been started, the vehicle-mounted device establishes mutual communication with the communication device through narrow-band wireless communication via the relay device, and the portable device corresponding to the vehicle has the predetermined position. If it is confirmed that the vehicle is present, the start of the vehicle is prohibited or stopped. The in-vehicle device includes an engine control device, and the engine control device is activated when a vehicle engine is started even though the portable device is detected by the communication device to be present at the predetermined position. The communication system according to claim 7, wherein the engine is stopped by the operation.

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