JP3565004B2 - In-vehicle electronic device control device and portable device used therefor - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a vehicle-mounted electronic device control device and a portable device used for the same, and more particularly to a device for controlling a vehicle-mounted navigation device using the portable device.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, there is a navigation device as one of in-vehicle devices, and vehicles equipped with the navigation device are increasing. This navigation device recognizes the current position as a point on a map from a current position from a current position detection system such as a GPS device and map data from a map database, displays a map around the current position on a display, and displays a map on the display. Displays the current location mark. When a destination is specified, an optimum route to the destination is searched for and displayed. In addition, in the traveling in which the route is set, the route is set on the map, and an instruction such as right / left turn is given.
[0003]
Therefore, the user operates the navigation device after getting on the vehicle to set a destination. On the other hand, the destination is often determined before boarding. Therefore, Japanese Patent Application Laid-Open No. 6-243395 proposes a device that can set a destination by using an external tool such as a personal computer without getting on the vehicle. According to this system, since the destination is set before the boarding, the driver can depart immediately after the boarding.
[0004]
[Problems to be solved by the invention]
However, in the above system, the in-vehicle navigation device must be on standby so as to be able to receive external communication. Even if the navigation apparatus body is started after receiving the start signal, keeping the receiver constantly started increases the power consumption considerably. In particular, preparing for communication via a telephone line from a home or the like or wireless communication consumes considerable power. In the case of a vehicle, it is often not used for a considerable period of time, and in such a case, it is impossible to activate the receiver.
[0005]
The present invention has been made in view of the above problems, and an object of the present invention is to provide a vehicle-mounted electronic device control device capable of suppressing power consumption and efficiently starting a navigation device.
[0006]
[Means for Solving the Problems]
The present invention relates to an in-vehicle vehicle including: an ID receiving unit that receives an ID signal transmitted from a portable device outside a vehicle; and an electronic device operation control unit that operates a predetermined on-vehicle electronic device after receiving the ID signal. In the electronic device control device, the on-vehicle electronic device includes a door lock control unit and a navigation device, and the ID receiving unit determines whether the portable device is outside or inside the vehicle by receiving an ID signal from the portable device. Detecting means for activating the navigation device when it is detected that the portable device is outside the vehicle, and then inputting the navigation device when it is detected that the portable device is inside the vehicle. It is characterized by shifting to a mode . As described above, according to the present invention, the navigation device can be activated when receiving the ID signal from the portable device. Therefore, when the user gets on the vehicle, the navigation device can be already in a standing state, and the operability can be improved. In addition, appropriate operation can be performed by starting up the navigation device and shifting to the destination input mode step by step.
[0007]
Further, the present invention further comprises an ID request signal transmitting means for transmitting an ID request signal to the outside of the vehicle, wherein the ID receiving means receives an ID signal returned as a response to the ID request signal. And By transmitting such an ID request signal, communication between the portable device and the in-vehicle electronic device control device can be performed without the need for active operation of the portable device. Therefore, in a device that releases a door lock or the like only by approaching the vehicle while holding the portable device, it is possible to control activation of the navigation device and the like.
[0010]
Further, in the present invention, in the destination input mode, there is provided destination acquisition means for requesting the portable device to transmit a destination candidate and receiving a response from the portable device, and acquiring the acquired destination candidate. It is characterized in that the destination is set in the navigation device. As described above, by acquiring data on the destination from the portable device through communication, the data on the destination set in advance by the navigation device can be easily captured.
[0012]
Further, the present invention is characterized in that, when the power supply of the navigation device is turned on by a signal from a portable device, the power supply of the navigation device is kept on regardless of a subsequent change in the state of an ignition switch. And A normal navigation device is turned on and off according to the state of an ignition switch. According to the present invention, it is possible to prevent the navigation device whose power has been turned on from being turned on again in the same manner as when unlocking the door lock.
[0013]
Further, the portable device according to the present invention includes: an ID request signal receiving unit that receives an ID request signal sent from an in-vehicle device; an ID returning unit that returns an ID signal in response to the received ID request signal; In a portable device used for an in-vehicle device control device having a navigation device, navigation data storage means for storing a plurality of destination candidates as navigation data for controlling the operation of the in- vehicle navigation device, and transmitting from the stored destination candidates. Selecting means for selecting a destination candidate to perform, and navigation data transmitting means for transmitting the selected destination candidate, wherein the ID request signal receiving means receives an ID request signal received when the vehicle is outside the vehicle. It is possible to distinguish and receive the ID signal received when the vehicle is inside the vehicle, and when it is determined that the vehicle is inside the vehicle based on the received ID signal, the navigation Ndeta transmission means and transmits the destination candidate. With this portable device, navigation data such as data on a destination can be transmitted. Further, by selecting a specific one from a plurality of destination candidates stored in the portable device, data on the destination can be transmitted, and the destination can be set inside the vehicle.
[0016]
Further, the present invention is characterized in that the on-vehicle electronic device control device is a mobile phone, wherein a telephone number memory is used as the navigation data storage means, and a telephone number is used as the navigation data. A mobile phone originally has a function of storing various telephone numbers, and a navigation device has a function of setting a destination by a telephone number. Thus, by using a mobile phone as a mobile device, the destination can be set using the telephone number storage function.
[0017]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention (hereinafter, referred to as embodiments) will be described with reference to the drawings.
[0018]
FIG. 1 is a block diagram illustrating the overall configuration of the on-vehicle electronic device control device according to the embodiment. The navigation device includes a navigation ECU 10, a map database 12, and a position detector 14. The map database 12 is formed of a CD-ROM or the like, and stores data of a nationwide map. The position detection unit 14 is configured by a GPS receiver or the like that receives radio waves from a plurality of artificial satellites and detects the absolute position (latitude, longitude, altitude) of the vehicle. It is also preferable to combine DGPS for improving the accuracy of GPS using the error information, autonomous traveling based on the traveling direction and traveling distance of the vehicle, map matching for matching the position of a road on a map, and the like. . The map database 12 and the position detector 14 are connected to the navigation ECU 10.
[0019]
Further, a display unit 16 and an operation unit 18 are connected to the navigation ECU 10. The display unit 16 is formed of, for example, a color LCD and performs various displays. The operation unit 18 includes a touch panel formed on the front surface of the display unit 16, and allows a user to perform a desired input by touching the display unit 16 according to the display. For example, in the case of inputting a destination, a destination can be input by selecting a destination setting screen and then inputting a map, a place name, a facility name, a telephone number, and the like. For example, if it is a telephone number, the area corresponding to the area code is limited, the map is displayed, the subscriber's address specified by the telephone number is picked up from the input telephone number, and the location is determined. You can also enter it. The navigation device refers to the navigation ECU 10, the map database 12, the position detection unit 14, the display unit 16, and the operation unit 18.
[0020]
The navigation ECU 10 performs various processes for route guidance using the current position information supplied from the position detection unit 14 and the map information stored in the map database 12, and displays a guidance screen on the display unit 16. To be displayed. That is, a map around the current location is displayed on the display unit 16 together with the current location mark, and the current location is displayed. When a destination is set, an optimal route from the current position to the destination is searched. This search is performed using the Dijkstra method or the like. Further, in the traveling in which the route is set, the route is clearly indicated on the map in addition to the above-mentioned present location display. Further, at a guidance intersection where a right or left turn is made, an enlarged view of the intersection is displayed to guide the right or left turn easily. Note that it is also preferable to provide guidance by voice from a speaker or the like.
[0021]
A mobile phone 26 is connected to the information ECU 20 via a cradle 22 and a connector 24 constituting a part of the cradle 22. The display unit 16 and the operation unit 18 are also used for input and output of the information ECU 20. The mobile phone 26 can be used as a normal mobile phone by disconnecting the connection with the connector 24. When the mobile phone 26 is set, the cradle 22 picks up and stores the telephone number and the like stored in the mobile phone 26. Further, a speaker, a microphone, operation buttons (not shown), and the like are connected to the cradle 22, and these are used to operate the mobile phone 26 as a hands-free phone. In addition. It is also preferable to use the display unit 16 and the operation unit 18 for an input / output device.
[0022]
For remote control using a portable device, a remote control ECU 30, a transmission / reception unit 32, first and second antennas 34 and 36, and a reception antenna 38 are provided. A door lock 40 and an engine control unit 42 are connected to the remote control ECU 30 as control targets. The first antenna 34 is used to take a door, and transmits a radio wave to the outside of the vehicle. In addition, the second antenna 36 is provided near the instrument panel in the vehicle compartment, and transmits a radio wave toward the vehicle compartment. These radio waves are, for example, about 2.45 GHz. The receiving antenna 38 receives a radio wave from the portable device. The radio wave from the portable device is, for example, 300 MHz.
[0023]
When the portable device is outside the vehicle, the remote control ECU 30 transmits an ID request (ID request signal) from the first antenna 34 periodically (for example, every 200 msec). That is, the transmission / reception unit 32 is activated to transmit the ID request. Since this ID request may be delivered to the vicinity of the vehicle, a relatively weak radio wave may be used. It is preferable that the ID request is different code data for a certain number of vehicles.
[0024]
Then, when this ID request is transmitted, it waits for a reply from the portable device. When there is no reply from the portable device, the transmitting / receiving unit 32 is turned off. In this way, the transmission / reception unit 32 is periodically activated to transmit the ID request, wait for a reply, and turn off the power. Therefore, the power may be smaller than when the receiver is always on.
[0025]
When there is a reply from the portable device, the remote control ECU 30 decodes the reply. The remote control ECU 30 has a non-volatile memory (or a backup memory) for storing the reference ID number, and compares the reference ID number stored here with the ID number sent from the portable device. Then, if they do not match in this comparison, the transmission / reception unit 32 is turned off as described above. On the other hand, if a match is confirmed in this comparison, the remote control ECU 30 controls the door lock 40 to release the door lock (at least the door lock on the driver's seat side door).
[0026]
When the door is opened and closed after the door lock is released and the driver gets on the vehicle, an ID request is transmitted from the second antenna 36. The portable device returns an ID number in response to the ID request. This ID number is preferably different from the one used outside the vehicle. A reply from the portable device is supplied to the remote control ECU 30 via the receiving antenna 38 and the transceiver 32, and the received ID number is collated here. If the verification is successful, the engine control unit 42 permits the start of the engine. Then, the engine can be started by operating the ignition switch. On the other hand, if the verification of the ID number fails, the remote control ECU 30 prohibits the engine control unit 42 from supplying fuel to the engine and igniting the plug. Therefore, starting of the engine is prohibited. This can prohibit a person who does not have a legitimate portable device from starting the engine.
[0027]
In the present embodiment, the navigation ECU 10 is started up when the door lock 40 is released by a reply from the portable device in response to the ID request from the first antenna 34. That is, in a normal case, when the ignition switch is turned on, the navigation ECU 10, the information ECU 20, and the like start up, but in the present embodiment, the navigation ECU 10 starts up at a previous stage. Then, the display unit 16 is turned on at the same time. It is also preferable to prepare a switch on whether or not to start the navigation device in the portable device, and to start the navigation device only when this switch is turned on. Thus, unnecessary start-up of the navigation device can be prevented. In this case, the portable device may include a signal indicating whether or not to activate the navigation as a reply of the ID request from the first antenna 34. Further, it is also preferable to shift to the destination setting mode when the user stands up. On the other hand, instead of shifting to the destination setting mode, this may be displayed as a shortcut menu. Further, in the above description, a plurality of ECUs are provided independently, but these may be integrated into one ECU.
[0028]
Therefore, when the driver gets on the vehicle, the navigation ECU 10 is standing up and the destination setting screen is displayed on the display unit 16. Thus, the driver can immediately operate the operation unit 18 to set the destination. It is also preferable that the driver shifts to the destination setting mode when the driver gets on the vehicle and receives a response to the ID request from the second antenna 36.
[0029]
FIG. 2 shows the configuration of the portable device. The receiving antenna 50 receives a 2.45 GHz radio wave (ID request signal) transmitted from the first and second antennas 34 and 36 on the vehicle side. The receiving unit 52 is connected to the receiving antenna 50, and performs a receiving process of a signal received by the receiving antenna 50. The ECU 54 is connected to the receiving unit 52, and performs various processes including a signal supplied from the receiving unit 52. A memory 56 is connected to the ECU 54, and the memory 56 stores data on ID. For example, two types of IDs for unlocking the door and for allowing the engine to start are stored. The memory 56 is formed of, for example, a ROM, but may be formed of an EEPROM or the like and can be rewritten. A transmission antenna 60 is connected to the ECU 54 via a transmission unit 58, and modulates a predetermined carrier with ID data and transmits the modulated data. The carrier frequency is, for example, 300 MHz, and is received by the receiving antenna 38 on the vehicle side. Further, an operation unit 62 is connected to the ECU 54. By operating the operation unit 62, an ID can be transmitted even when an ID request signal is not received. Further, it is also preferable that the operation unit 62 sets whether or not to instruct the start-up of the navigation device, whether or not to shift to the destination mode, and the like, so as to be transmitted. Further, data for setting a destination may be stored in the memory 56 as a telephone number or the like, and the data may be transmitted.
[0030]
In the present embodiment, the mobile phone 26 can be connected to the cradle 22 via the connector 24. The mobile phone 26 is always carried by the user, and the user sets the mobile phone 26 on the cradle 22 after getting on the vehicle and connects to the connector 24. Therefore, the mobile phone 26 is used for setting a destination for the navigation ECU 10.
[0031]
That is, the mobile phone 26 has various telephone number memories. Then, the information ECU 20 takes in the telephone number stored in the specific abbreviated number through the cradle 22 and gives the same to the navigation ECU 10. As a result, this telephone number is set as the destination. If the phone number identifies the exact location of the destination, this completes the entry of the destination, and if a region is identified, the map for that region is displayed. The final destination is input by touching the display unit 16. In addition, if the mobile phone 26 has a short message function, data on the destination may be input, and the data may be captured as a short message.
[0032]
As described above, when the user gets on the vehicle, the navigation device has already started up and is in the destination setting mode. Then, just by setting the mobile phone 26, the destination can be set from the telephone number stored therein. If the telephone number stored in the retransmission memory of the mobile phone 26 is set to the destination, it is easy to set the position of the other party who called immediately before to the destination.
[0033]
Furthermore, in the above description, the portable device and the portable telephone 26 have been described as being separate from each other. However, it is preferable to use the mobile phone 26 as it is as a portable device. That is, the mobile phone 26 is provided with a function of receiving radio waves from the first and second antennas 34 and 36 and returning an ID. This allows the user to release the door lock 40 when the user approaches the vehicle while carrying the mobile phone 26, and enters the engine start permission state when the user gets on the vehicle. By setting the mobile phone 26 in the cradle 22, the destination can be set. If the telephone number of the mobile phone 26 is set as the ID, it is not necessary to separately store the ID.
[0034]
Further, the portable device may be provided with a function for setting a destination by button operation or the like, and the destination may be set by transmitting the function together with the ID. For example, in response to an ID request from the second antenna 36 after getting on the vehicle, the destination is transmitted together with the ID. The remote control ECU 30 sends the received destination to the navigation ECU 10, where the destination is set. In this case, it is preferable that the driver transmits a destination request signal from the second antenna 36 at the time of getting on the vehicle and receives a response thereto, thereby acquiring data on the destination.
[0035]
In addition, it is also preferable to start up the information ECU 20 at the time of unlocking the door so that an e-mail can be immediately taken. A switch for designating whether or not to perform this operation may be provided in the portable device, and the operation may be performed in the same manner as described above. It is also preferable to output voice information of the received mail when the user gets on the vehicle.
[0036]
In the case of a normal device, power supply to the navigation ECU 10 is operated by turning on and off an ignition switch. However, in this state, the navigation ECU 10 is temporarily turned off by operating the ignition key after the user gets on the vehicle. Therefore, in the device of the present embodiment, the remote control ECU 30 controls the power supply of the navigation ECU 10.
[0037]
Next, an example of the operation of the present embodiment will be described with reference to the flowchart of FIG.
[0038]
First, an ID request is periodically transmitted from the first antenna 34, and an ID is returned from the portable device. If there is a reply, the received ID is collated (S11). If the ID is verified in this determination, the door lock 40 is controlled to release the door lock (door unlock) (S12). Note that the signal from the portable device does not necessarily have to be a response to the ID request, and may be a door unlock signal corresponding to an operation of an unlock button in the portable device. Therefore, it is also preferable to determine whether the instruction is a door unlock instruction. In particular, when the state of charge of the vehicle battery deteriorates, the periodic transmission of the ID request is stopped. In such a case, if only the reception function is used, only the operation for the door unlock and the navigation device can be ensured by the button operation of the portable device.
[0039]
Then, it is determined whether or not the navigation device can be started (S13). This determination can be made according to the state of a switch for determining whether to activate the navigation device provided in the portable device or the like. When the door is unlocked, the navigation device may always be activated.
[0040]
If NO in this determination, it is determined from the response to the ID request of the second antenna 36 whether or not the portable device is in the vehicle compartment within a fixed time after the door is unlocked (S14). If the determination is YES, it is determined that the driver has a legitimate portable device and gets on the vehicle. Therefore, the engine is permitted to start, and the engine is started and the navigation device is turned on in response to the operation of the ignition switch. Start-up is performed (S15).
[0041]
On the other hand, if the determination in S13 is YES, the navigation device is activated (S16). Then, similarly to S14, it is detected whether the driver has boarded (S17). If the driver does not get on within the predetermined time, it is considered that the driver once approached the vehicle but did not get on. Then, the power of the navigation device is turned off (S19), and the door is locked (S20).
[0042]
On the other hand, if the determination in S17 is YES, it is considered that the driver gets on the vehicle and uses the navigation device. Then, the mode is shifted to the destination setting mode, and the destination is set (S18). At this time, as described above, the power supplied to the navigation ECU 10 and the like is irrelevant to the turning on of the ignition switch, and is kept on as it is.
[0043]
Next, the operation in S20 will be described with reference to FIG. First, the mode shifts to the destination setting mode (S21), and further shifts to the telephone number input mode. Therefore, as a setting of the destination, the system is in a state of waiting for input of a telephone number (S22). Then, when the mobile phone 26 is connected, the telephone number is fetched from here (S23). In this way, since the data of the destination has been fetched, the corresponding map is read from the map database 12 (S24) and displayed (S25). When the destination is specified by the telephone number, the destination is displayed on a map and set as a destination (S26). If the destination cannot be specified, the process waits for input of the destination.
[0044]
As described above, according to the present embodiment, it is possible to start up the navigation device when releasing the door lock. Therefore, the navigation device can be operated immediately after the driver gets on the vehicle. By shifting to the destination setting mode, the destination can be input immediately. By taking in the telephone number as the destination, the destination can be set effectively by the data from the mobile phone.
[0045]
【The invention's effect】
As described above, according to the present invention, the navigation device can be activated when the portable device unlocks the door. Therefore, it is possible to simplify the operation of the navigation device when the user gets on the vehicle and to improve the usability.
[Brief description of the drawings]
FIG. 1 is a block diagram illustrating a configuration of an embodiment.
FIG. 2 is a block diagram illustrating a configuration of a portable device.
FIG. 3 is a flowchart illustrating an overall operation of the embodiment.
FIG. 4 is a flowchart illustrating a destination setting operation of the embodiment.
[Explanation of symbols]
Reference Signs List 10 navigation ECU, 12 map database, 14 position detection unit, 16 display unit, 18 operation unit, 20 information ECU, 22 cradle, 24 connector, 26 mobile phone, 30 remote control ECU, 32 transmission / reception unit, 34 first antenna, 36 Second antenna, 38 receiving antenna, 40 door lock, 42 engine control unit.

Claims (6)

ID receiving means for receiving an ID signal sent from a portable device outside the vehicle,
Electronic device operation control means for operating a predetermined vehicle-mounted electronic device after receiving the ID signal;
In the in-vehicle electronic device control device having
The on-vehicle electronic device includes a door lock control unit and a navigation device ,
The ID receiving means has a detecting means for detecting whether the portable device is outside or inside the vehicle by receiving an ID signal from the portable device,
The detecting device activates the navigation device when it is detected that the portable device is outside the vehicle, and thereafter shifts the navigation device to a destination input mode when it is detected that the portable device is inside the vehicle. In-vehicle electronic equipment control device. The apparatus according to claim 1,
The electronic device control system further comprises an ID request signal transmitting unit for transmitting an ID request signal to the outside of the vehicle, wherein the ID receiving unit receives an ID signal returned as a response to the ID request signal. apparatus. The apparatus according to claim 1 or 2,
In the destination input mode,
The portable device has a destination acquisition unit that requests transmission of a destination candidate and receives a response from the portable device,
An in-vehicle electronic device control device, wherein the acquired destination candidate is set as a destination in a navigation device. ID receiving means for receiving an ID signal sent from a portable device outside the vehicle,
Electronic device operation control means for operating a predetermined vehicle-mounted electronic device after receiving the ID signal;
In the in-vehicle electronic device control device having
As the on-vehicle electronic device, there is a door lock control unit, a navigation device,
When the power of the navigation device is turned on by a signal from a portable device, the power of the navigation device is maintained in an on state regardless of a subsequent change in the state of an ignition switch. apparatus. A portable device used for an in-vehicle device control device, comprising: an ID request signal receiving unit that receives an ID request signal sent from the in-vehicle device; and an ID return unit that returns an ID signal in response to the received ID request signal. On the machine,
  Navigation data storage means for storing a plurality of destination candidates as navigation data for controlling the operation of the vehicle-mounted navigation device;
  Selecting means for selecting a destination candidate to be transmitted from the stored destination candidates;
  A navigation data transmitting means for transmitting the selected destination candidate,
  Has,
  The ID request signal receiving means can receive an ID request signal received when the vehicle is outside the vehicle and an ID signal received when the vehicle is inside the vehicle. The portable device, wherein when it is determined that there is a destination, the navigation data transmitting means transmits a destination candidate. The portable device according to claim 5 ,
The portable device is a portable telephone, wherein a telephone number memory is used as the navigation data storage means, and a telephone number is used as the navigation data.

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