JP2001288941A - Keyless entry device, method for transmitting information thereof, portable machine for keyless entry system, and in-vehicle machine for keyless entry system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently achieve information transmission from the inside of a vehicle to the outside. SOLUTION: There is provided a keyless entry device which is comprised of a keyless transmitter-receiver 15 arranged in a portable machine 1 and a keyless transmitter-receiver 22 arranged in an in-vehicle machine 2, the transmitter-receivers 15, 22 exchanging predetermined lock control information via a first communication line formed by using radio waves or infrared waves, whereby the in-vehicle machine 2 controls locking and unlocking operations of a door locking mechanism by the in-vehicle machine 2. According to the keyless entry device, a period of time during which the predetermined lock control information is not exchanged, arbitrary information different from the lock control information is transferred from the portable machine 1 to the in-vehicle machine 2 or vice versa via the first communication line.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a keyless entry device capable of locking and unlocking a vehicle such as an automobile without operating a key on a key cylinder, an information communication method therefor, a portable device for keyless entry, and a keyless device. It relates to an in-vehicle device for entry.

[0002]

2. Description of the Related Art In recent years, information has been advanced in the field of automobiles.
No. 0 is provided with a memory and a connection terminal for information transmission in an ignition key or the like in order to externally transmit information to a device mounted on a car, and transmits information stored in the memory through the connection terminal. A transmission technology has been proposed.

[0003]

In the above-mentioned prior art, information transmission between the outside and a device on the vehicle side is realized by newly providing an information communication function to the ignition key.

In the present application, in order to efficiently transmit information between the outside and a device on the vehicle side, in a keyless entry device that has been widely used, a portable device and a vehicle-mounted device that constitute the keyless entry device are used. Pay attention to the communication line.

That is, an object of the present invention is to provide a keyless entry device for efficiently transmitting information from outside to the inside of a vehicle, an information communication method thereof, a keyless entry portable device, and a keyless entry on-vehicle device.

[0006]

In order to achieve the above object, a keyless entry device according to the present invention has the following configuration.

That is, by transmitting and receiving predetermined control information via a first communication line (wireless or infrared) constituted by a transceiver provided in a portable device and a transceiver provided in a vehicle-mounted device, The in-vehicle device is a keyless entry device for controlling a locking / unlocking operation of a door lock mechanism, and the portable device and the in-vehicle device are provided with arbitrary information (for example, music data or the like) different from the predetermined control information. )
And information communication control means for transmitting and receiving via the first communication line.

In a preferred embodiment, the portable device and the vehicle-mounted device establish a second communication line between each other or with an external device (information device such as a portable or stationary computer). It is preferable to include a second transceiver (for example, a wireless communication device that performs wireless communication according to a predetermined wireless communication procedure) that establishes and performs arbitrary information communication via the second communication line.

In the above case, when the information communication control means of the portable device and the on-vehicle device cannot transmit and receive the arbitrary information via the first communication line, the information communication control means transmits the information via the second communication line. In order to transmit and receive the first information or the second information, the occupant may select the first or second communication line.

In order to efficiently transmit information to the on-vehicle device, the information communication control means of the portable device and the on-vehicle device includes:
Even if predetermined security information used when transmitting and receiving the predetermined control information between the portable device and the on-vehicle device does not match, transmission and reception of the arbitrary information may be allowed. .

Further, in the above configuration, the information communication control means of the portable device, based on the identification information received in response to the transmission of the predetermined request signal, detects the on-vehicle device present in the vicinity, Selecting means for selecting any in-vehicle device to which the arbitrary information is to be transferred from among the in-vehicle devices detected by the detection means, and information communication control means of the in-vehicle device, It is preferable to include an identification information notifying unit that transmits the preset identification information to the portable device when a predetermined request signal is received.

Further, for example, it is preferable that the information communication control means of the portable device is configured to enable information communication with another portable device having the same configuration as the portable device.

[0013] In a preferred embodiment, the on-vehicle device may include a reproducing means for streaming reproducing the music data in a vehicle cabin.

Further, the present invention is characterized in that a keyless entry portable device and a keyless entry vehicle-mounted device corresponding to the portable device and the vehicle-mounted device included in the system configuration of the keyless entry device.

In order to achieve the above object, an information communication method for a keyless entry device according to the present invention has the following configuration.

That is, by transmitting and receiving predetermined control information via a first communication line constituted by a transceiver provided in the portable device and a transceiver provided in the vehicle-mounted device, the vehicle-mounted device can move the door. An information communication method for a keyless entry device for controlling a lock / unlock operation of a lock mechanism, wherein any information different from the predetermined control information is transmitted from the portable device to the on-vehicle device via the first communication line. It is characterized by being transferred to

In a preferred embodiment, a second communication line is established between the portable device and the on-vehicle device or between the portable device and an external device, and information communication is performed via the second communication line. It is preferable that two transceivers are provided in the portable device and the on-vehicle device, respectively, and when the arbitrary information cannot be transmitted and received via the first communication line, the information may be transmitted and received via the second communication line.

Further, in order to efficiently transmit information to the vehicle-mounted device, predetermined security information used when transmitting and receiving the predetermined control information between the portable device and the vehicle-mounted device does not match. Also, transmission and reception of the arbitrary information may be allowed.

[0019]

According to the present invention, a keyless entry device for efficiently transmitting information from the outside to the inside of a vehicle, an information communication method thereof, a keyless entry portable device, and a keyless entry vehicle-mounted device are provided. Realize.

That is, Claims 1, 12, and 1
According to the twentieth aspect of the present invention, any information (for example, music data: claim 10) is transmitted using a period during which predetermined control information is not transmitted / received on the first communication line, thereby achieving keyless operation. Efficient information transmission can be realized by using a device configuration originally provided as an entry device.

Further, claim 2, claim 16, and claim 21
According to the invention, for example, the second communication line for performing wireless communication can be established so that the backup function of the first communication line (claims 5 and 13) can be realized,
The convenience is improved by the selecting means (claim 6).

According to the seventh and fourteenth aspects of the present invention, information transmission of arbitrary information can be performed efficiently (usability).

[0023] Further, claim 8, claim 18, and claim 23.
According to the invention, even when the occupant having the portable device does not recognize the in-vehicle devices existing in the vicinity, the occupant can recognize the in-vehicle devices and easily select a desired in-vehicle device from the in-vehicle devices whose presence has been recognized. You can choose.

According to the ninth and nineteenth aspects, information can be easily shared between a plurality of portable devices.

[0025] According to the eleventh aspect of the present invention, it is possible to reproduce music without temporarily storing music data on the vehicle-mounted device side.

[0026]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a keyless entry device according to the present invention will be described in detail with reference to the drawings as an embodiment applied to a typical automobile.

FIG. 1 is a diagram showing a system configuration of a keyless entry device according to the present embodiment and a schematic configuration of each component constituting the system. The system includes a portable device 1 that can be carried by an occupant of an automobile. It comprises an in-vehicle device 2 mounted on an automobile and an information device 4 capable of communicating with the portable device 1. Here, the information device 4 may be a portable information terminal (PDA) or the like, or a stationary personal computer or the like.

In the keyless entry device according to the present embodiment having the above system configuration, the portable device 1 and the vehicle-mounted device 2 establish a first communication line using a radio signal or an infrared signal, and the first communication line is established. Control information for realizing a door lock operation and arbitrary information such as music data and map data.

The portable device 1 and the on-vehicle device 2 communicate with each other when information cannot be communicated via the first communication line, or when the portable device 1
Is selected by an operation switch (a second data transmission switch 124 to be described later) when a predetermined short-range wireless communication method (for example, Bluetooth or the like) suitable for communication within a range of about several tens of meters is used. A second communication line is established using a wireless signal based on the first communication line, and at least the arbitrary information is transmitted and received through the second communication line.

The arbitrary information transmitted by the portable device 1 to the on-vehicle device 2 is information obtained by a radio signal from the information device 4, and the arbitrary information transmitted by the on-vehicle device 2 to the portable device 1 includes a navigation unit 28 and an audio unit. 29 or the information received from the failure diagnosis unit 30.

When transmitting a radio signal including arbitrary information via the radio transceiver 16, the portable device 1 allows the operator to select the on-vehicle device 2 (or the information device 4) to receive the radio signal. It has a function to do. Similarly, when transmitting a wireless signal containing arbitrary information via the wireless transceiver 26, the on-vehicle device 2 has a function of allowing the occupant to select the portable device 1 (or the information device 4) to receive the wireless signal. Have. Furthermore,
The information device 4 has a function of, when transmitting a wireless signal including arbitrary information via the wireless transceiver 45, an operator selecting the portable device 1 (or the vehicle-mounted device 2) to receive the wireless signal.

Next, the device configuration of each of the above components will be described.

<Portable Device 1> In the portable device 1 shown in FIG. 1, reference numeral 12 denotes an operation switch which can be operated by an operator (occupant of the vehicle) to lock a door of the vehicle equipped with the vehicle-mounted device 2 and to transmit arbitrary information. Group (details will be described later with reference to FIGS. 2 and 3). 13. Buzzer. Reference numeral 14 denotes a display using a small liquid crystal display or the like. 15 establishes a first communication line with the in-vehicle device 2, and performs transmission and reception of predetermined door lock control information and transmission and reception of arbitrary information according to the operation of the operation switch group 12 through the first communication line. It is a keyless transceiver that modulates information to be transmitted and demodulates a wireless signal (or infrared signal) received from the vehicle-mounted device 2.

16 receives arbitrary information from the information device 4 and establishes a second communication line with the vehicle-mounted device 2.
A wireless transceiver that transmits and receives at least the arbitrary information via the second communication line, and can modulate information to be transmitted and demodulate a wireless signal received from the vehicle-mounted device 2 and the information device 4. And 11 is R
This is a microcomputer including a CPU that controls the operation of each block by executing a control program stored in the OM while using the RAM as a work area.

<In-vehicle device 2> Next, in the in-vehicle device 2 shown in FIG. 1, the 22 establishes a first communication line with the portable device 1 and performs a predetermined door lock control with the first communication line. A keyless transceiver capable of transmitting and receiving information or arbitrary information and demodulating a wireless signal (or an infrared signal) received from the on-vehicle device 2, modulates information to be transmitted, and transmits a wireless signal (or an infrared signal) received from the portable device 1. Or an infrared signal). Reference numeral 23 denotes a door lock detection sensor that detects a locked / unlocked state of a door lock of the vehicle. Reference numeral 24 denotes an ignition key switch. Reference numeral 25 denotes a horn or a hazard lamp used to notify the door lock state of the vehicle in the present embodiment.

26 establishes a second communication line with the portable device 1, transmits and receives at least the arbitrary information via the second communication line, and performs data communication with the information device 4 (from the in-vehicle device 2). This is a wireless transceiver that performs image data, e-mail data, failure diagnosis information, and the like to the information device 4, modulates information to be transmitted, and demodulates a wireless signal received from the portable device 1 or the information device 4. be able to. 27 is a door lock actuator for operating the door lock of the vehicle. 28 is GPS
(Global Positioning System) This is a navigation unit that detects the position of the host vehicle and guides the route to the destination using signals, map information, and the like.

Reference numeral 29 denotes an audio unit for reproducing a CD (compact disk), music data, and the like. Three
Reference numeral 0 denotes a failure diagnosis unit that detects a failure of various sensors provided in the vehicle. Reference numeral 31 denotes a key cylinder contact switch for detecting an operation state of a key cylinder provided on a door of the vehicle. An operation switch group 32 allows an occupant to operate transmission of arbitrary information transmitted from the vehicle-mounted device 2. Reference numeral 33 denotes a display using a liquid crystal display or the like. Reference numeral 21 denotes a microcomputer including a CPU that controls the operation of each of these blocks by executing a control program stored in the ROM in advance while using the RAM as a work area.

<Information Equipment 4> In the information equipment 4 shown in FIG. 1, reference numeral 42 denotes a group of operation switches such as a keyboard.
43, buzzer. Reference numeral 44 denotes a display using a liquid crystal display or the like. Numeral 45 is used to transmit arbitrary information to the portable device 1 or the on-vehicle device 2 using a radio signal based on a predetermined short-range wireless communication method (for example, Bluetooth or the like) suitable for communication within a range of about several tens of meters. It is a wireless transceiver that transmits and modulates information to be transmitted and can demodulate a wireless signal received from the portable device 1 or the on-vehicle device 2.

Reference numeral 46 denotes various sensors, and 47 denotes various actuators. For example, when the information device 4 is a portable storage medium player such as a CD or MD, a pickup provided in a module for reading the storage medium. And an actuator such as a motor. And 41
Stores the control program stored in the ROM in advance in the RAM
Is a microcomputer provided with a CPU that controls the operation of each of these blocks by executing while using as a work area.

In the above system configuration, the wireless transceiver 26 of the vehicle-mounted device 2 and the wireless transceiver 4 of the information device 4
5 may be configured to be able to transmit and receive various information.

Next, various switches provided in the portable device 1 as the operation switch group 12 and the external shape of the portable device 1 will be described.

FIGS. 2 and 3 are diagrams illustrating the external shape of the portable device 1 according to the present embodiment. The portable device 1 may have any of the card type shown in FIG. 2 and the ignition key type shown in FIG. good.

The portable device 1 shown in FIGS. 2 and 3 is provided with a plurality of switches as the operation switch group 12 shown in FIG. That is, reference numeral 121 denotes an unlock switch capable of unlocking (unlocking) a door of an automobile on which the in-vehicle device 2 is mounted. Reference numeral 122 denotes a door lock switch capable of executing locking (locking) of the vehicle door. Reference numeral 123 denotes a first data transmission switch capable of transmitting arbitrary information via the keyless transceiver 15 (first communication line). 124 is
This is a second data transmission switch capable of transmitting arbitrary information via the wireless transceiver 16 (second communication line). Reference numeral 125 denotes an in-vehicle device search switch that is operated to search for the communicable in-vehicle device 2 from the current position when the operator of the portable device 1 cannot recognize the communicable in-vehicle device 2 existing in the vicinity. Reference numeral 126 denotes an arbitrary on-vehicle device 2 that can be selected from the on-vehicle devices 2 (identification information that can identify the on-vehicle device 2) displayed on the display 14 in response to the operation of the on-vehicle device search switch 125 by the operator. This is an onboard unit selection switch. The display 14 displays the door lock actuator 2 according to the control information received from the on-vehicle device 2.
7 is displayed.

The on-vehicle device 2 includes the first and second data transmission switches 123 and 124 and the on-vehicle device search switch 125 of the portable device 1 as the operation switches 32.
And having the same function as the in-vehicle device selection 126,
The first and second data transmission switches 22 are not shown.
3, 224, and a portable device search switch 225 and an in-vehicle device selection 226.

Here, the main features of the present embodiment will be outlined. The keyless transceiver 15 provided in the portable device 1 and the keyless transceiver 22 provided in the in-vehicle device 2 transmit and receive predetermined lock control information via a first communication line configured using wireless or infrared rays. By doing so, the in-vehicle device 2 controls the locking / unlocking operation of the door lock mechanism, and uses the period during which the predetermined lock control information is not transmitted / received to use any information (music) different from the lock control information. Data or map data) from the portable device 1 to the in-vehicle device 2 or from the in-vehicle device 2 to the portable device 1 via the first communication line. Further, at least a communication line used for transmitting the arbitrary information is provided by a first or second data transmission switch 12 provided in the portable device 1.
Either the first or the second communication line is selected by selection by the operator 3,124 or by automatic switching by control processing described later.

In the present embodiment, the door lock control operation realized by the portable device 1 and the on-vehicle device 2 is such that the operator operating the portable device 1 operates the unlock switch 121 or the lock switch 122. When the vehicle-mounted device 2 receives the unlock request signal automatically transmitted from the vehicle-mounted device 1 at predetermined time intervals, the received electric field strength of the door-lock actuator 27 of the vehicle-mounted device 2 is activated in response to the received electric field strength. Is larger than the predetermined electric field strength L1,
The configuration in which the door lock actuator 27 of the on-vehicle device 2 automatically operates is adopted, but the present invention is not limited to this configuration. For example, an automatic lock / unlock operation according to the received electric field strength of the unlock signal is performed. A device configuration that does not include such a device may be used.

In the keyless entry device including the portable device 1, the on-vehicle device 2, and the information device 4, a field constituting a radio signal (or an infrared signal) transmitted / received between each of these components is provided. ,
The header information includes header information and footer information in a general format, error correction information, and a predetermined identification number (ID) capable of identifying each component.

Next, various signals transmitted and received between the portable device 1 and the vehicle-mounted device 2 will be described.

FIG. 4 is a diagram showing various signals transmitted and received between the portable device 1 and the vehicle-mounted device 2 in the present embodiment.
Generally, a control signal for causing the door lock actuator 27 to perform an unlocking operation, the door lock actuator 2
7 includes a control signal for causing the portable device 1 to perform a locking operation, and an optional information signal for transmitting optional information such as music data obtained in advance to the portable device 1 from the information device 4 to the vehicle-mounted device 2.

The basic configuration of a control signal for performing the above-described lock / unlock operation will be described. When a request signal for a certain operation (lock or unlock) is transmitted from the portable device 1, the in-vehicle device 2 transmits a challenge signal in response to the request signal, and the portable device 1 responds to the challenge signal. Send a response signal. The in-vehicle device 2 that has received the response signal executes the operation requested by the portable device 1 and transmits a confirmation signal reporting completion of the operation.

Here, the challenge signal and the response signal are signals transmitted and received to ensure the security function, and the vehicle-mounted device 2 includes a different random number every time the request signal according to the switch operation is received. Send a challenge signal. Upon receiving the challenge signal, the portable device 1 performs a predetermined operation using a random number included in the received signal to create an encryption code, and sends a response signal including the created encryption code to the vehicle-mounted device 2. The in-vehicle device 2 performs a predetermined operation similar to that of the portable device 1 using the random number transmitted as the challenge signal to create an encryption code, and uses the created encryption code in the received response signal. The request signal received this time is determined to be a wireless signal from the legitimate (paired) portable device 1 only when the comparison result matches, and an operation corresponding to the request signal is executed.

Next, the microcomputer 1 of the portable device 1
The control processing performed by the microcomputer 1 and the control processing performed by the microcomputer 21 of the vehicle-mounted device 2 will be described.

<Control Process of Portable Device 1> FIG. 5 is a flowchart showing a control process of the portable device 1 in the present embodiment.

In the figure, steps S1 to S
3: It is determined whether or not a power switch (not shown) of the portable device 1 is on (step S1). If the determination is NO (power switch off), the unlock switch 121 is turned on.
Is determined (step S3), and YES is determined.
When the power switch is turned on, it is determined whether a predetermined time (for example, about 1 second) has elapsed since the last time the unlock request signal was transmitted (step S2).

Step S4: When it is determined that the predetermined time has elapsed in step S2, or when the operation of the unlock switch 121 is detected in step S3,
The above-described unlock request signal is transmitted. Therefore, in the present embodiment, the unlock request signal is automatically transmitted at a predetermined time period, and the unlock switch 12
Sent when 1 is operated.

Step S5, Step S6: It is determined whether or not the above-described unlock challenge signal has been received (Step S5). When the determination is NO (when the signal is not received), the process proceeds to Step S7, and the determination is YES. At this time (when the signal is received), an unlock response signal corresponding to the challenge signal is transmitted (Step S).
6).

Steps S7 and S8: It is determined whether or not the above-described unlock confirmation signal has been received (step S7).
7) When the determination is NO (when the signal is not received), the process proceeds to step S9, and when the determination is YES (when the signal is received), the unlock operation is performed in the vehicle-mounted device 2. In order to notify the occupant carrying the portable device 1 of the fact, predetermined guidance (for example, “Unlocked.”) Is displayed on the display 14 and the buzzer 13 is displayed.
Is operated twice (step S8).

Steps S9 to S11: It is determined whether or not the lock switch 123 has been operated (step S9).
9) When the determination is NO (when the signal is not received), the process proceeds to step S12, and when the determination is YES (the switch is operated), the above-described lock request signal is transmitted (step S10) and the process is periodically performed. The transmission of the unlock request signal transmitted to the server is prohibited for a predetermined time (for example, about 5 seconds) (step S11).

Steps S12 and S13: It is determined whether or not the above-described lock challenge signal has been received (step S12). If the determination is NO (when the signal is not received), the process proceeds to step S14, and if the determination is YES. When (the signal is received), a lock response signal corresponding to the challenge signal is transmitted (step S13).

Steps S14 and S15: It is determined whether the above-mentioned lock confirmation signal has been received (step S1).
4) When the determination is NO (when the signal is not received), the process proceeds to step S16, and when the determination is YES (when the signal is received), the locking operation is performed in the vehicle-mounted device 2. Is displayed on the display 14 to notify the occupant carrying the portable device 1 of the portable device 1 and the buzzer 13 is turned on by one.
It is operated twice (step S15).

Step S16: Arbitrary information is transmitted and received by executing a portable device data communication process (FIG. 7) described later, and the process returns.

<Control Process of In-Vehicle Device 2> FIG. 6 is a flowchart showing the control process of the in-vehicle device 2 in this embodiment.

In the figure, step S21: The state of the ignition key switch 24 is detected, and if the detected state is off, the process proceeds to step S37.

Step S22, Step S23: It is determined whether or not the above-described unlock request signal has been received (Step S22). When the determination is NO (when the signal is not received), the process proceeds to Step S24, and the determination is YES. At this time (when the signal is received), an unlock challenge signal corresponding to the request signal is transmitted (step S2).
3).

Steps S24 and S25: It is determined whether the above-mentioned lock request signal has been received (step S2).
4) When the determination is NO (when the signal is not received), the process proceeds to step S26, and when the determination is YES (when the signal is received), the lock challenge signal corresponding to the request signal is transmitted. (Step S25).

Steps S26 and S27: By detecting the state of the key cylinder contact switch 31,
It is determined whether a lock operation or an unlock operation has been performed by operating the occupant ignition key (step S26,
In step S27), when the lock operation is detected by these determinations, the process proceeds to step S33, when the unlock operation is detected, the process proceeds to step S35, and when no operation is detected, the process proceeds to step S28.

Steps S28 and S29: It is determined whether or not the unlock response signal, which is the above-described unlock response signal and includes the identification information that matches the identification information of the paired portable device 1 stored in advance, has been received. (Step S28), and if NO in this determination (when the signal is not received), the process proceeds to step S30, and YES
In this case (when the signal is received), it is determined whether the electric field strength of the response signal is lower than a predetermined level L1 (step S29). When the determination in step S29 is NO (when the electric field strength of the response signal is larger than the predetermined level L1), the process proceeds to step S35 to perform the door unlocking operation, and when the determination is YES (the electric field of the response signal If the intensity is lower than the predetermined level L1), the process proceeds to step S30.

Step S30: The lock response signal described above, which is a pair of portable devices 1 stored in advance.
It is determined whether a lock response signal including identification information that matches the identification information is received. If the determination is NO (when the signal is not received), the process proceeds to step S31.
If YES (when the signal is received), the process proceeds to step S33.

Steps S31 and S32: A lock response signal containing identification information that matches the identification information of the paired portable device 1 stored in advance within a predetermined time, and whose electric field strength is equal to or higher than the predetermined level L2. It is determined whether the unlock response signal has been received again (step S3).
1) When the determination is NO (when the signal is not received), the process proceeds to step S33, and when the determination is YES (when the signal is received), the identification information and the unlock information are output after the unlock response signal. It is determined whether a lock response signal including the matching identification information has been received (step S32). When the determination in step S32 is YES (when the lock response signal is received after the unlock response signal), the process proceeds to step S33 to perform the door locking operation, and when the determination is NO (when the unlock response signal When the lock response signal is not received later), the process proceeds to step S37.

Steps S33 and S34: The door lock actuator 27 is caused to perform a door lock operation (step S33), and the door lock detection sensor 23
When it is detected that the door has been locked by detecting the state of (1), the above-mentioned lock confirmation signal is transmitted, and the horn (or hazard lamp) 25 is operated twice to indicate the completion of the door lock (step S3).
4) Go to step S37.

Steps S35 and S36: The door lock actuator 27 is caused to perform a door unlock operation (step S35), and the door lock detection sensor 2
When the completion of door unlock is detected by detecting the state of No. 3, the above-mentioned unlock confirmation signal is transmitted, and the horn (or hazard lamp) 25 is operated once to indicate the completion of door unlock. (Step S36), the process proceeds to step S37.

Step S37: Door lock detection sensor 2
By detecting the state of No. 3, it is determined whether or not the door is locked. If the determination is NO (unlocked), the process proceeds to step S38, and if the determination is YES (locked), the process returns.

Step S38: Arbitrary information is transmitted and received by executing on-vehicle device data communication processing (FIG. 8) described later, and the process returns.

<Portable Device Data Communication Process> FIG. 7 is a flowchart showing the portable device data communication process in the control process of the portable device 1 according to the present embodiment. The details of step S16 in the flowchart of FIG. Express.

In the figure, steps S101 to S103: A data signal containing arbitrary information is transmitted to the vehicle-mounted device 2 via the keyless transceiver 15 or the wireless transceiver 16.
Alternatively, it is determined whether or not it has been received from the information device 4 (step S
101) If the determination is NO (when the signal is not received), the process proceeds to step S104. If the determination is YES (when the signal is received), reference is made to the identification information included in the received data signal. By doing so, it is determined whether the data signal is a signal addressed to itself (step S10).
2). If it is determined in step S102 that the signal is addressed to the own device, arbitrary information included in the signal is stored in a memory (RAM, EEPROM, or the like) (step S103), and it is determined that the signal is not addressed to the own device. If so, the process proceeds to step S104.

Step S104: It is determined whether or not arbitrary information to be transmitted to the vehicle-mounted device 2 is stored in a memory (RAM, EEPROM, or the like). If the determination is YES (there is optional information), the first or second communication line is determined. Then, the process proceeds to step S105 and subsequent steps to transmit the arbitrary information, and if NO (no optional information), the process ends because there is no need to perform the portable device data communication process.

Steps S105 to S108: It is determined whether the first data transmission switch 123 has been operated (step S105). If the determination is NO (if the switch has not been operated), then step S110 is performed.
When YES (when the switch is operated), the in-vehicle device 2 to which the arbitrary information is to be transferred is selected (step S106), and the arbitrary information signal including the arbitrary information read from the memory is transmitted. The data is transmitted to the selected on-vehicle device 2 by the keyless transceiver 15 (steps S107 and S108).

Here, a method of selecting an arbitrary on-vehicle device 2 in step S106 will be described. In the present embodiment, the portable device 1 is provided with the on-vehicle device search switch 125 and the on-vehicle device selection switch 126 as described with reference to FIG. 2 and FIG. An operator can select any on-vehicle device 2 by operating the operator.

That is, in step S106, when the operator of the portable device 1 cannot recognize the communicable on-vehicle device 2 present in the vicinity (when the operator does not know itself), first, the operator can communicate from the current position. The user operates the on-board unit search switch 125 to search for the on-board unit 2. A predetermined request signal is transmitted from the on-vehicle device 1 in response to this operation, and a signal including the identification information of the own device is transmitted from the on-vehicle device 2 that has received the request signal. Then, the portable device 1 that has received this signal displays the identification information that can identify the in-vehicle device 2 included in the received signal on the display 1.
4 is displayed. At this time, when a plurality of in-vehicle devices 2 are present in the cycle of the portable device, the identification information of the plurality of in-vehicle devices is displayed on the display 14 accordingly. Therefore, the portable device 1 selects the onboard device selection switch 126 from the identification information displayed on the display 14.
It is sufficient that the occupant can select any in-vehicle device.

Steps S109 and S110: It is determined whether the transmission of the arbitrary information signal by the keyless transceiver 15 is successful. If the determination is YES (successful transmission), the process ends. It is determined whether or not the two-data transmission switch 124 has been operated (step S110). When the determination is NO (when the switch has not been operated), the process ends, and when the determination is YES (the switch has been operated). Time), step S
Go to 111.

Here, whether or not the transmission of the arbitrary information signal has succeeded depends on whether the keyless transceiver 15 transmits various signals for door lock control described above when the signal is transmitted from the keyless transceiver 15. It is sufficient to determine at least whether or not transmission / reception processing is being performed (in this case, it may be determined to be unsuccessful when transmission / reception processing of various signals for door lock control is being performed). More preferably,
Even when the arbitrary information signal can be transmitted from the keyless transceiver 15, it may be determined whether or not a predetermined reception confirmation signal has been received from the keyless transceiver 22 of the vehicle-mounted device 2.

Steps S111 to S113: The in-vehicle device 2 (or the information device 4) to which the arbitrary information is to be transferred is selected (step S111), and the arbitrary information signal including the arbitrary information read from the memory is selected. It is transmitted to the device 2 by the wireless transceiver 16 (step S112, step S113), and the process is terminated.

In the selection process of the vehicle-mounted device 2 in step S111, the operation of the first data transmission switch 123 is not detected in step S105, and the process in step S110 is not performed.
If the operation of the second data transmission switch 124 is detected in step S106, the operator manually selects the vehicle-mounted device search switch 125 and the vehicle-mounted device selection switch 126 as in step S106 described above. When it is determined that the transmission of the arbitrary information signal by the device 15 has failed, the in-vehicle device 2 selected by the operator in step S106 may be automatically selected. However, if the same selection processing as in step S106 is performed using the wireless transceiver 16 in step S111, not only the nearby in-vehicle devices 2 that can communicate but also the information devices 4 that can communicate (wireless communication) Can also be searched and selected.

<In-vehicle device data communication process> FIG. 8 is a flowchart showing the in-vehicle device data communication process in the control process of the in-vehicle device 2 in the present embodiment. The details of step S38 in the flowchart of FIG. Express.

In the figure, steps S201 to S203: a data signal including arbitrary information is transmitted to the portable device 1 by the keyless transceiver 22 or the wireless transceiver 26.
Alternatively, it is determined whether or not it has been received from the information device 4 (step S
201), when the determination is NO (when the signal is not received), the process proceeds to step S207, and when the determination is YES (when the signal is received), the identification information included in the received data signal is referred to. Then, it is determined whether the data signal is a signal addressed to itself (step S20).
2). If it is determined in step S202 that the signal is addressed to the own device, arbitrary information included in the signal is stored in a memory (RAM, EEPROM, or the like) (step S203), and it is determined that the signal is not addressed to the own device. If so, the process proceeds to step S207.

Steps S204 to S206: The type is determined by referring to the type information included in the received data signal (step S204), and the data signal includes music data (for example, archive data in a format such as MP3). When it is determined that the music data is transmitted to the audio unit 29 capable of streaming reproduction (step S205), when it is determined that the data signal includes map data, text data, image data, or e-mail data, the data signal is transmitted. Is transferred to the navigation unit 28 (step S206), and the process proceeds to step S207.

Steps S207 and S208: Navigation unit 28, audio unit 29,
Alternatively, it is determined whether data to be transmitted to the external device (the portable device 1 or the information device 4) has been received from the failure diagnosis unit 30. If the determination is NO (when there is no data to be transmitted), step Proceeding to S209, if YES (when there is data to be transmitted), the data is stored in a memory (RAM, EEPROM, etc.) (step S208), and the process proceeds to step S209.

Steps S209 to S218: Processing having the same configuration as steps S104 to S113 in the portable equipment data communication processing (FIG. 7) described above. This is performed on data read from the memory.

That is, the first or second communication line is selected according to the operation of the first and second data transmission switches 223 and 224 (not shown), and the data to be transmitted is transmitted to the portable device 1. If the communication by the first communication line is not successful, communication control for automatically selecting the second communication line is performed. Also, in the same manner as the procedure described in step S106 of FIG. 7, the portable device search switch 225 and the in-vehicle device selection 226 (not shown) are operated by the occupant in step S211 to use the keyless transceiver 22 to perform an arbitrary operation. The portable device 1 is selected, and in step S216, an arbitrary portable device 1 or information device 4 is selected using the wireless transceiver 45.

Note that the above-mentioned predetermined door lock control signal is transmitted and received between the portable device 1 and the on-vehicle device 2 only when the arbitrary information to be transmitted and received is information that is not problematic from the viewpoint of copyright protection. The individual identification information (security information) to be sometimes included in the control signal is based on the portable device data communication process (FIG. 7) and the on-vehicle device data communication process (FIG. 8).
However, even if they do not match, the transmission and reception of arbitrary information between the portable device 1 and the on-vehicle device 2 is allowed, so that the information transmission of the arbitrary information can be performed efficiently (usability). If you prepare multiple terminals with the same device structure,
Any of the portable devices 1 can easily share arbitrary information.

Next, the operation control of each subunit included in the vehicle-mounted device 2 will be described.

<Navigation unit 28> FIG.
5 is a flowchart illustrating a control process of the navigation unit 28 in the present embodiment.

In the figure, steps S61 and S62: It is determined whether or not map data has been received from the microcomputer 21 (step S61).
(When the data is not received), step S
The process proceeds to 63, and if YES (when the data is received), the received data is stored in a map data memory (not shown) (step S62), and step S6 is performed.
Proceed to 3.

Steps S63 and S64: The microcomputer 21 sends text data, image data,
Alternatively, it is determined whether e-mail data has been received. If the determination is NO (when the data is not received), the process proceeds to step S65, and if the determination is YES (when the data is received), the received data is received. Is stored in a memory (not shown) (step S64), and the process proceeds to step S65.

Steps S65 and S66: Data (map data, text data, image data, or electronic data) is transmitted to an external device (portable device 1 or information device 4) by an occupant operating a switch (not shown) of the navigation unit 28. It is determined whether there is a transmission request of (mail data) (step S65). If the determination is NO (no transmission request), the process proceeds to step S67. If the determination is YES (transmission request is present), the data in the transmission request state is copied The data is transferred to the computer 21 (step S66), and the process proceeds to step S67. The data transferred to the microcomputer 21 is sent to the external device (the portable device 1 or the information device 4) as the above-mentioned optional information.

Step S67: Perform general navigation processing such as detection of the current position and route guidance to the destination.
To return.

<Audio Unit 29> FIG. 11 is a flowchart showing control processing of the audio unit 29 in the present embodiment.

In the figure, steps S81 to S83: It is determined whether or not music data has been received from the microcomputer 21 (step S81).
(When music data is not received), step S
84, if YES (when music data is received), the received music data is stored in a memory (not shown) and is streamed (step S84).
82, step S83). A general method is adopted as a streaming reproduction method of music data received from the outside, and detailed description in the present embodiment is omitted.

Steps S84 and S85: It is determined whether or not there is a request to transmit music data to an external device (portable device 1 or information device 4) by an occupant operating a switch (not shown) of audio unit 29 (step S84). S
54), if the determination is NO (no transmission request), the process proceeds to step S86; if the determination is YES (transmission request is present), the music data in the transmission request state is transferred to the microcomputer 21 (step S85), and the process proceeds to step S86.
Proceed to. The music data transferred to the microcomputer 21 is sent to the external device (the portable device 1 or the information device 4) as the above-mentioned optional information.

Step S86: Performs general processing such as demodulation and output of a signal received by a radio tuner (not shown) and reproduction and output of a portable storage medium such as a CD or MD, and returns.

<Failure Diagnosis Unit 30> FIG. 12 is a flowchart showing the control processing of the failure diagnosis unit 30 in this embodiment.

In the figure, step S71, step S72: whether there is a request for transmission of data (failure diagnosis result, output data of various sensors, etc.) indicating a failure state to an external device (portable device 1 or information device 4). Is determined (step S71). If the determination is NO (no transmission request), the process proceeds to step S67. If the determination is YES (transmission request is present), the data in the transmission request state is transferred to the microcomputer 21 (step S72). , Step S73
Proceed to. The data transferred to the microcomputer 21 is stored in an external device (portable device 1) as the above-mentioned arbitrary information.
Alternatively, it is sent to the information equipment 4).

Step S73: Perform a failure diagnosis control process for various sensors, and return.

<Information Device 4> FIG. 9 is a flowchart showing a control process of the information device 4 in the present embodiment.

In the figure, steps S41 to S44: A data signal including arbitrary information is
5 to determine whether it has been received from the portable device 1 or the on-board device 2 (step S41). When the determination is NO (when the signal is not received), the process proceeds to step S45, and when the determination is YES ( When the signal is received), it is determined whether or not the data signal is a signal addressed to itself by referring to the identification information included in the received data signal (step S42). If it is determined in step S42 that the signal is addressed to the own device, the optional information included in the signal is stored in a memory (RAM, EEPROM, or the like) (step S43), and a predetermined control based on the optional information is performed. Processing (for example, actuator operation)
Is performed (step S44). On the other hand, if it is determined that the signal is not addressed to the own device, the process proceeds to step S45.

Steps S45 and S46: It is determined whether there is a data transmission request to an external device (portable device 1 or in-vehicle device 2) by a predetermined operation of the group of operation switches 42 by the operator (step S45). , In this judgment N
If O (no transmission request), the process proceeds to step S47,
If YES (there is a transmission request), the data in the transmission request state is transferred to the memory (RAM, EEPROM, or the like) of the microcomputer 41 as data to be transmitted (step S46), and the process proceeds to step S47.

Step S47: It is determined whether or not data to be transmitted to the external device is stored in the memory. If the determination is YES (there is data), the processing from step S48 is performed to transmit the data by the wireless transceiver 45. When NO (no data), the process proceeds to step S52 because there is no need to perform the data communication process to the external device.

Steps S48 to S51: It is determined whether or not a predetermined switch for transmission has been operated by the operator in the group of operation switches 42 (step S48), and if NO in this determination (the switch has been operated). If no (if not present), the process proceeds to step S52, and if YES (if the switch is operated), an external device (portable device 1 or in-vehicle device 2) to which the data is to be transferred is selected (step S49). A signal including the data read out from the memory is transmitted by the wireless transceiver 45 to the selected external device as the above-mentioned arbitrary information signal received by the portable device 1 or the on-vehicle device 2 (steps S50 and S51). .

The process of selecting the portable device 1 or the in-vehicle device 2 in step S49 may be the same process as step S106 in the portable device data communication process (FIG. 7).

Step S52: A predetermined control process of the information device 4 other than the data communication process described above is performed, and the process returns.

As described above, according to the present embodiment, it is possible to efficiently transmit information from the outside to the inside of the vehicle.

[Modification of Embodiment] In the embodiment described above, arbitrary information such as music data transmitted from the wireless transceiver 45 of the information device 4 is received by the wireless transceiver 16 provided in the portable device 1. Then, the arbitrary information is transmitted to the in-vehicle device 2 by the keyless transceiver 15 (first communication line) or the wireless transceiver 16 (second communication line) provided in the portable device 1. It is not limited to the system configuration.

Specifically, in a preferred embodiment, for example, the keyless transceiver 15 and the keyless transceiver 22 are eliminated from the hardware of the portable device 1 and the on-vehicle device 2, respectively, and the communication between the wireless transceiver 16 and the wireless transceiver 26 is performed. If the procedure is adjusted to the wireless communication procedure of the wireless transceiver 45 provided in the information device 4, or if infrared communication is adopted for the first communication line, instead of providing the information device 4 with the wireless transceiver 45, It is preferable to use an infrared communication module whose communication procedure is the same as that of infrared communication.

When such a system configuration is adopted, two communication lines cannot be used properly unlike the above-described embodiment, but a portable device is required to realize a conventionally known general door lock operation. 1 and onboard equipment 2
Using the minimum hardware configuration, the above-described transmission of the arbitrary information can be realized by the software (control program) executed in the portable device 1 and the vehicle-mounted device 2. As compared with the embodiment described above, it is possible to suppress an increase in cost due to an increase in the number of members, and it is possible to make the shapes of the portable device 1 and the in-vehicle device 2 compact.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a system configuration of a keyless entry device according to an embodiment and a schematic configuration of each component configuring the system.

FIG. 2 is a diagram illustrating an example of an outer shape of the portable device 1 according to the embodiment.

FIG. 3 is a diagram illustrating an external shape of the portable device 1 according to the embodiment.

FIG. 4 is a diagram showing various signals transmitted and received between the portable device 1 and the on-vehicle device 2 in the embodiment.

FIG. 5 is a flowchart illustrating a control process of the portable device 1 according to the embodiment.

FIG. 6 is a flowchart illustrating a control process of the vehicle-mounted device 2 according to the embodiment.

FIG. 7 is a flowchart illustrating a portable device data communication process in the control process of the portable device 1 according to the present embodiment.

FIG. 8 is a flowchart illustrating an on-vehicle device data communication process in the control process of the on-vehicle device 2 according to the present embodiment.

FIG. 9 is a flowchart illustrating a control process of the information device 4 according to the present embodiment.

FIG. 10 is a flowchart illustrating a control process of the navigation unit according to the embodiment.

FIG. 11 shows an audio unit 29 according to the embodiment.
5 is a flowchart showing the control processing of FIG.

FIG. 12 is a flowchart illustrating a control process of the failure diagnosis unit 30 according to the present embodiment.

[Explanation of symbols]

 1: portable device, 2: on-board device, 4: information device, 12, 32: operation switch group, 13, 43: buzzer, 14, 33, 44: display, 15, 22: keyless transceiver, 16, 26, 45 : Wireless transceiver, 11, 21, 41: microcomputer, 23: door lock detection sensor, 24 ignition key switch, 25: horn or hazard lamp, 27: door lock actuator, 28 navigation unit, 29: audio unit, 30 failure Diagnostic unit, 31: key cylinder contact switch, 46: sensor, 47: actuator, 121: unlock switch, 122: lock switch, 123, 223: first data transmission switch, 124, 224: second data transmission switch, 125 : In-vehicle device search switch, 26: vehicle-mounted device selection switch, 225: portable device searching switch, 226: portable device selection switch,

 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Koji Hosoda 3-1 Shinchi, Fuchu-cho, Aki-gun, Hiroshima Mazda Co., Ltd. (72) Inventor Shigefumi Hirabayashi 3-1 Shinchi, Fuchu-cho, Aki-gun, Hiroshima Mazda F term (reference) 2E250 AA21 BB08 CC27 DD06 EE10 FF24 FF36 FF38 HH01 JJ03 KK03 LL01 SS04 SS08 SS11 TT03 UU01 VV01 5K048 AA14 BA42 DB01 DB04 DC01 EB02 HA04 HA06

Claims (23)

[Claims] The vehicle-mounted device transmits / receives predetermined control information via a first communication line composed of a transceiver provided in the portable device and a transceiver provided in the vehicle-mounted device, so that the vehicle-mounted device can operate as a door. A keyless entry device for controlling a lock / unlock operation of a lock mechanism, wherein the portable device and the on-vehicle device transmit / receive arbitrary information different from the predetermined control information via the first communication line. A keyless entry device, comprising: 2. The portable device and the vehicle-mounted device establish a second communication line between each other or with an external device,
A second communication for performing arbitrary information communication via the second communication line
The keyless entry device according to claim 1, further comprising a transceiver. 3. The keyless entry device according to claim 2, wherein the second transceiver is a wireless communication device that performs wireless communication according to a predetermined wireless communication procedure. 4. The keyless entry device according to claim 2, wherein the external device is a portable or stationary information device including a transceiver capable of establishing the second communication line. . 5. The information communication control means of the portable device and the on-vehicle device transmits / receives the information via the second communication line when the arbitrary information cannot be transmitted / received via the first communication line. The keyless entry device according to any one of claims 2 to 4, wherein: 6. The information communication control means of the portable device and the on-vehicle device includes a selection device capable of arbitrarily selecting the first or second communication line so as to transmit and receive the arbitrary information. The keyless entry device according to any one of claims 2 to 4, wherein 7. The information communication control means of the portable device and the on-vehicle device, wherein the predetermined security information used when transmitting and receiving the predetermined control information between the portable device and the on-vehicle device does not match. 2. The keyless entry device according to claim 1, wherein the transmission and reception of the arbitrary information is permitted. 8. An information communication control unit of the portable device, wherein the identification information received in response to the transmission of the predetermined request signal detects the on-vehicle device present in the surroundings, Out of the onboard equipment
Selecting means for selecting any on-vehicle device to which the arbitrary information is to be transferred, wherein the information communication control means of the on-vehicle device is preset when the predetermined request signal is received from the portable device. 8. The keyless entry device according to claim 1, further comprising an identification information notifying unit that transmits the identification information to the portable device. 9. The information communication control means of the portable device is capable of communicating information with another portable device having the same configuration as the portable device.
Or the keyless entry device according to claim 8. 10. The keyless entry device according to claim 1, wherein the arbitrary information is music data. 11. The keyless entry device according to claim 10, wherein the on-vehicle device includes a reproducing unit that performs streaming reproduction of the music data in a vehicle cabin. 12. By transmitting and receiving predetermined control information via a first communication line constituted by a transceiver provided in a portable device and a transceiver provided in a vehicle-mounted device,
An information communication method for a keyless entry device in which the on-vehicle device controls a locking / unlocking operation of a door lock mechanism, wherein any information different from the predetermined control information is transmitted to the first control device.
An information communication method for a keyless entry device, wherein the information is transmitted and received via a communication line. 13. A second communication line is established between the portable device and the on-vehicle device or between an external device and the second communication line.
A second transceiver for performing information communication via a communication line is provided in each of the portable device and the in-vehicle device, and when the arbitrary information cannot be transmitted / received via the first communication line, the information is transmitted to the second device. 13. The information communication method for a keyless entry device according to claim 12, wherein the information is transmitted and received via two communication lines. 14. The transmission / reception of the arbitrary information is allowed between the portable device and the on-vehicle device even if the predetermined security information used for transmitting / receiving the predetermined control information does not match. 13. The information communication method for a keyless entry device according to claim 12, wherein: 15. A first communication line comprising a transceiver provided on a portable device and a transceiver provided on the on-vehicle device so that the vehicle-mounted device controls the locking / unlocking operation of a door lock mechanism. A portable device for keyless entry that transmits and receives predetermined control information via the first control device, wherein any information different from the predetermined control information is transmitted to the first control device.
A keyless entry portable device comprising information communication control means for transmitting and receiving via a communication line. 16. The portable device for keyless entry establishes a second communication line between itself and the on-vehicle device or between the own device and an external device, and via the second communication line, The portable device for keyless entry according to claim 15, further comprising a second transceiver for performing information communication. 17. The keyless entry portable device according to claim 16, wherein the second transceiver is a wireless communication device that performs wireless communication according to a predetermined wireless communication procedure. 18. The information communication control means according to claim 1, wherein the predetermined security information used when transmitting and receiving the predetermined control information between the own device and the on-vehicle device does not match. 16. The keyless entry portable device according to claim 15, wherein transmission and reception are permitted. 19. The keyless entry according to claim 15, wherein the information communication control means can perform information communication with another portable device having the same configuration as the portable device. For portable devices. 20. By transmitting and receiving predetermined control information via a first communication line formed by a transceiver provided in the portable device and a transceiver provided in the portable device,
A keyless entry in-vehicle device for controlling a lock / unlock operation of a door lock mechanism, wherein any information different from the predetermined control information is transmitted to the first control device.
An in-vehicle device for keyless entry, comprising information communication control means for transmitting and receiving via a communication line. 21. The in-vehicle device for keyless entry establishes a second communication line between the in-vehicle device and the in-vehicle device or between the in-vehicle device and an external device. 21. The keyless entry on-vehicle device according to claim 20, further comprising a second transceiver for performing information communication. 22. The keyless entry on-vehicle device according to claim 21, wherein the second transceiver is a wireless communication device that performs wireless communication according to a predetermined wireless communication procedure. 23. The information communication control means, if the predetermined security information used when transmitting and receiving the predetermined control information between the mobile device and the portable device does not match, the information communication control means may control the arbitrary information. 21. The in-vehicle device for keyless entry according to claim 20, wherein transmission and reception are allowed.