JP2000274124A - Keyless entry system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a transmitter and a receiver respectively in both portable device and on-board device and issue an alarm in the portable device in accordance with an action detected at the on-board device side in a keyless entry system of the on-board device informing of a state of a door lock. SOLUTION: An alarm to attract attention is issued from a portable device 1 when an alarm instruction signal transmitted from on-board device 2 in accordance with controls of an outer door handle (information instruction switch 7) or the like is received. When the information instruction switch 13 is operated, the acting condition of the present door lock mechanism 3 is informed the portable device 1 thereof if the on-board device 2 positions within a range where the information instruction signal transmitted is perceptible and if another portable device 1 in pairs positions within the range, an alarm to attract attention is issued in the other portable device 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a keyless entry system for locking and unlocking an automobile or the like without a key.

[0002]

2. Description of the Related Art Conventionally, in an automobile, for example, a driver or the like does not lock or unlock a key cylinder with a predetermined key, and operates a predetermined switch on a portable terminal (hereinafter referred to as a portable device). Is performed, a control unit (hereinafter referred to as an in-vehicle device) provided in the vehicle is locked / locked in response to a predetermined radio wave transmitted in response to the operation.
A so-called keyless entry system for unlocking has been widely used.

Further, in order to improve the convenience of the operator, a predetermined radio signal is always transmitted from the portable device without providing an operation switch on the portable device, and when the radio signal is received by the vehicle-mounted device, A keyless entry system has been proposed in which the in-vehicle device performs locking and unlocking according to the magnitude of the received electric field strength of the wireless signal.

In recent years, a keyless entry system capable of two-way communication, in which both a portable device and a vehicle-mounted device are provided with a transmitter / receiver and informing the door lock state of the vehicle-mounted device in the portable device, has been proposed. Kaihei 10-23
No. 651. According to the keyless entry system capable of such two-way communication, the state of the door lock of the vehicle can be grasped while the occupant is away from the vehicle, and the convenience can be improved.

[0005]

In the above-described keyless entry system capable of two-way communication, the vehicle-mounted device passively transmits data in response to transmission from the portable device.
If there is such a hardware environment that allows two-way communication between the portable device and the vehicle-mounted device, the vehicle-mounted device actively transmits a predetermined radio signal, thereby further improving the convenience of the system. It is assumed that it can be done.

Accordingly, the present invention provides a keyless entry system in which both a portable device and a vehicle-mounted device are provided with a transmitter / receiver, and the portable device notifies a door lock state of the vehicle-mounted device. It is an object of the present invention to cause a portable device to perform notification in accordance with (1).

[0007]

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

That is, the portable device includes a portable device capable of two-way communication and a vehicle-mounted device, and the vehicle-mounted device controls the locking / unlocking operation of the door lock mechanism in accordance with a radio signal transmitted from the portable device. A keyless entry system for notifying the portable device of an operation state of the door lock mechanism, wherein the in-vehicle device includes, for example, an operation unit (for example, a door handle or the like) provided outside a vehicle on which the in-vehicle device is mounted. ) When the predetermined operation is detected (may be inside the vehicle), the mobile device transmits a predetermined radio signal to instruct the portable device to notify, and the mobile device receives the predetermined radio signal. In this case, for example, a notification operation by sound or vibration is performed.

In addition, the portable device includes a portable device capable of two-way communication and a vehicle-mounted device, and the vehicle-mounted device controls a locking / unlocking operation of a door lock mechanism in accordance with a radio signal transmitted from the portable device. A keyless entry system for notifying the portable device of an operation state of the door lock mechanism, wherein when the keyless entry system includes a plurality of the portable devices, a second portable device among the portable devices; When the first mobile device receives a predetermined wireless signal transmitted by performing a predetermined operation in the first mobile device, the first mobile device performs a notification operation.

[0010] In the above keyless entry system, even if the vehicle-mounted device controls the locking / unlocking operation of the door lock mechanism in accordance with the received electric field strength of the radio signal transmitted from the portable device, Alternatively, the vehicle-mounted device controls the lock / unlock operation of the door lock mechanism in response to a predetermined radio signal indicating lock or unlock transmitted in response to the operation of the portable device. It is also applicable.

[0011]

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

[First Embodiment] First, the hardware of the keyless entry system in the present embodiment will be described.

FIG. 1 is a block diagram of a keyless entry system according to a first embodiment of the present invention.

In FIG. 1, the portable device 1 includes an unlock switch 11 for instructing the vehicle-mounted device 2 to unlock the door, a lock switch 12 for instructing the vehicle-mounted device 2 to lock the door,
A notification instruction switch 13 for informing the in-vehicle device 2 and the other portable devices 1 in the same group, a display (a lamp such as an LED, etc.) for performing a predetermined notification (details will be described later) according to the received wireless signal. 14), a buzzer (or vibration generating unit) 20, a CPU 15 for executing a control processing program described later, and an RO in which the program, the identification number (ID) of the portable device, and the like are stored in advance.
M16, an RA for temporarily storing the identification numbers (IDs) and processing results of the other mobile devices 1 and on-vehicle devices 2 forming the same group
M17, a transmitter 18 for transmitting a predetermined radio signal according to output data of the CPU 15, and a receiver 1 for demodulating a received signal from an external device into data that can be identified by the CPU 15.
9 is provided.

Here, the external shape of the portable device 1 may be of a type integral with the ignition key or of a so-called card type. In addition, portable device 1
Is driven by a power supply supplied from a built-in battery (not shown).

The on-vehicle device 2 transmits a received signal from the outside to the CPU.
A receiver 29 for demodulating the data into identifiable data 25, a CPU
The transmitter 28 for transmitting a predetermined wireless signal in accordance with the output data of the CPU 25, the CPU 25 for executing a control processing program to be described later for operating the door lock mechanism 3, etc., and the identification number (ID) of the in-vehicle device are stored in advance. ROM2 stored
6, and the identification number (ID) of the program executed by the CPU 25 and the one or more portable devices 1 constituting the same group
And a RAM 27 for temporarily storing processing results.

The in-vehicle device 2 causes the door lock mechanism 3 to perform a locking operation or an unlocking operation, and also operates the notification instruction switch 6 provided in the vehicle compartment and the notification instruction provided outside the vehicle. The operation state of the switch 7 can be detected, and when these switches are operated, a notification instruction signal described later is transmitted from the transmitter 28 of the vehicle-mounted device 2. When the door lock knob switch (not shown in FIG. 1) is operated by an occupant, the vehicle-mounted device 2 causes the door lock mechanism 3 to perform a lock operation or an unlock operation in accordance with the operation.

Here, the notification instruction switch 6 provided in the vehicle compartment may be provided exclusively for a center console in the vehicle compartment, for example, or may be used in combination with an on / off switch such as a head lamp or a hazard lamp. As the notification instruction switch 7 provided outside the vehicle, a switch capable of detecting the operation state of an outer door handle capable of releasing the door from the outside of the vehicle by releasing the latch state of the door, or provided at a lower end portion of a side mirror or the like. A dedicated switch.

The vehicle-mounted device 2 is driven by a power supply supplied from a battery (not shown) provided in the vehicle.

Next, the structure of a transmission signal that can be transmitted by the portable device 1 and the on-vehicle device 2 will be described with reference to FIGS.

FIG. 2 is a diagram showing a configuration of a transmission signal according to the first embodiment of the present invention.

The CPU 15 of the portable device 1 issues a lock signal when the lock switch 12 is pressed, an unlock signal when the unlock switch 11 is pressed, and a notification signal when the notification instruction switch 13 is pressed. To
Transmitted via the transmitter 18. Also, the CPU of the vehicle-mounted device 2
Reference numeral 25 sends out the notification instruction signal via the transmitter 28 when the notification instruction switch 6 or 7 is operated or when the notification signal is received from the portable device 1.

Each of the above three types of signals is a predetermined start bit, a portable device (or vehicle-mounted device) ID bit representing an individual identification number of the mobile device 1 or the vehicle-mounted device 2, a lock signal.
Each field 101 to 105 includes an operation instruction bit indicating an unlock operation or a notification instruction, a parity bit according to a general method, and a predetermined end bit.

Here, both the portable device 1 and the on-vehicle device 2 send out a notification instruction signal in the above format, and the on-vehicle device 2 transmits the notification instruction signal from the own vehicle device in response to the notification instruction signal received from the portable device 1. When the notification instruction signal is transmitted, information indicating the operating state of the door lock mechanism 3 at that time is stored in the field 10 in the operation instruction bit of the notification instruction signal to be transmitted.
3 is different.

FIG. 3 is a diagram showing a configuration of a challenge signal and a response signal according to the first embodiment of the present invention, in order to improve security of two-way communication between the portable device 1 and the vehicle-mounted device 2. Used for

As shown in the figure, the challenge signal and the response signal are both a predetermined start bit, a portable device ID bit representing an identification number of each portable device, a random number bit or an encryption code bit, and a parity according to a general method. Bits, each field 201 to 2 of a predetermined end bit
05.

Here, a brief description will be given of how to use the challenge signal and the response signal having the above-described configurations.
The on-vehicle device 2 sends a challenge signal including a different random number each time prior to performing a lock or unlock operation in a control process described below. Upon receiving the challenge signal, the portable device 1 performs a predetermined operation using a random number included in the challenge signal to create an encryption code, and sends a response signal including the created encryption code to the vehicle-mounted device 2. Then, the on-vehicle device 2 creates an encryption code by performing a predetermined operation similar to that of the portable device 1 using the random number transmitted as the challenge signal, and compares the created encryption code with the encryption code included in the response signal. Only when the comparison results match, the wireless signal received this time is determined to be a signal from a legitimate (paired) portable device 1 constituting the same group, and the lock / unlock operation is performed.

The above-mentioned challenge signal and response signal may be omitted as long as security between the portable device 1 and the vehicle-mounted device 2 can be ensured.

Next, the operation of the keyless entry system according to the present embodiment will be described by describing software executed on the above-described hardware with reference to FIGS.

In the following description, the portable device 1 and the on-vehicle device 2 determine whether or not the received radio signal has a predetermined format. If the signal has a predetermined format, the fields 104 and 204 (parity bits) are used. Whether the data is correct, and fields 102 and 2
It is determined whether or not the information of 02 (ID bit) is included in the IDs of the devices constituting the same group stored in the device itself. Detailed description in the embodiment will be omitted.

FIG. 4 is a flowchart of a control process performed by the portable device according to the first embodiment of the present invention, and is started, for example, when a built-in battery (not shown) is set in the portable device 1.

In the figure, step S1: The operation state of each operation switch is detected.

Step S2, Step S3: Step 1
It is determined whether or not the lock switch 12 has been pressed according to the detection result (step S2). When it is detected that the switch has been pressed (YES), a lock for instructing the vehicle-mounted device 2 to lock the door is provided. A signal is sent (step S3), and the switch is not pressed (NO
In step (d), the process proceeds to step S4.

Step S4 to Step S6: Step 1
It is determined whether or not the unlock switch 11 has been pressed based on the detection result (step S4). When it is detected that the switch has been pressed (YES), the vehicle-mounted device 2 is instructed to unlock the door. (Step S5), and when the switch is not pressed (NO), the other portable device 1 and the on-vehicle device 2
A notification instruction signal for instructing the notification is transmitted to (step S6).

Step S7: It is determined whether or not a challenge signal has been received. If YES (when received), the process proceeds to step S8, and if NO (when not received), the process proceeds to step S10.

Step S8: The data of the field 202 (portable device ID bit) of the signal received from the outside is compared with its own ID data stored in advance, and when both data match (YES). Step S9
If they do not match (NO), the signal currently being received is not a wireless signal from the paired on-vehicle device 2, so the process proceeds to step S10.

Step S9: An encryption code is calculated in accordance with random number bit data included in the field 203 of the challenge signal detected to be received in step S7, and a response signal including the calculated code is transmitted.

Step S10: It is determined whether or not a notification instruction signal has been received from another portable device 1 or on-vehicle device 2 in the same group, and if YES (received), the process proceeds to step S10.
If NO (no reception), the process returns.

Step S11: If the determination in step S10 is YES (when the notification instruction signal is received), it is determined whether or not the field 103 of the received notification instruction signal includes the operating state information of the door lock mechanism 3. Judge.

Step S12: If the determination in step S11 is YES (when the information is included), the current operating state (locked or unlocked) of the door lock mechanism 3 is displayed on the display 14 according to the received operating state information. ) And return. At this time, the operating state of the door lock mechanism 3 may be represented by the mode of notification of the buzzer (or the vibration generating unit) 20.

Step S13: When the determination in step S11 is NO (when the information is not included), the onboard unit 2
Indicates that the notification instruction switch 6 or 7 has been operated, or that the notification instruction switch 13 has been pressed on another portable device 1 in the same group. The buzzer (or vibration generating unit) 20 is operated in a predetermined manner to display the ID of the vehicle 1 or the in-vehicle device 2 on the display 14 and to call attention of an operator (occupant) carrying the portable device. And return. At this time, attention may be called out by displaying on the display 14. However, in general, it is expected that an occupant who is away from the vehicle often puts the portable device in a pocket of clothes or the like. It is desirable to notify that the notification instruction signal has been received by (or the vibration generating unit) 20.

FIG. 5 is a flowchart of a control process performed by the vehicle-mounted device according to the first embodiment of the present invention. For example, when power is supplied from a battery of the vehicle to a power supply unit (not shown) of the vehicle-mounted device 2. Be started.

In the figure, step S21: It is determined whether a radio signal has been received from a predetermined portable device 1 to be paired,
If YES (received), the process proceeds to step S22.

Steps S22 and S23: When the determination in step S21 is YES (when a radio signal is received), a challenge signal including a random number bit in the field 203 is output from the RAM 27 to the transmitter 28 (step S22). The bit string is transmitted after being modulated by the transmitter 28 (step S23).

Steps S24 and S25: It is determined whether a response signal has been received by the receiver 29 before the designated time has elapsed, and when the response signal has been received (step S24).
If NO in step S24 and YES in step S25), the process proceeds to step S26. If the signal is not received (YES in step S24), step S2
Since there is a high possibility that the wireless signal received in 1 is not a signal transmitted from the predetermined portable device 1 that forms a pair, the operation proceeds to step S35 without performing the operation based on the received signal.

Steps S26 and S27: An encryption code is calculated according to the random number bit data transmitted as the challenge signal in step S23 (step S2).
6) It is determined whether or not the calculated encryption code matches the encryption code included in the field 203 of the received response signal (step S27). If they match (YES), the process proceeds to step S21. Since the received wireless signal is a signal from the legitimate portable device 1 to be paired, the process proceeds to step S28, and if they do not match (NO), the wireless signal received in step S21 is transmitted from the predetermined portable device 1 to be paired. Since there is a high possibility that the received signal is not a transmitted signal, the operation proceeds to step S35 without performing the operation based on the received signal.

Step S28: The type of operation to be performed in the following steps is specified based on the bit string of the field 103 of the radio signal received in step S21. If the result is a lock signal, the flow advances to step S29 to release the unlock signal. If it is, the process proceeds to step S30, and if it is the notification instruction signal, the process proceeds to step S31.

Steps S29 and S30: The door lock mechanism 3 is caused to perform a lock operation (step S29) or an unlock operation (step S30).

Steps S31 and S32: The current operating state of the door lock mechanism 3 is detected (step S3).
1) Depending on whether or not the result of the detection indicates a locked state, the process proceeds to step S33 (when locked) or step S34 (when unlocked).

Steps S35 and S36: It is detected whether or not the notification instruction switch 6 or 7 has been operated (step S35). If the switch has been operated (YES) in step S36, the process proceeds to step S37, and the operation proceeds to step S37. If not (NO), the process returns.

Step S37: A notification instruction signal not including the information indicating the operation state of the door lock mechanism 3 in the field 103 is sent out, and the routine returns.

Next, a description will be given of a method of registering the device IDs forming the same group in the RAMs 17 and 27 of the portable device 1 and the vehicle-mounted device 2 in the maintenance mode.

In the present embodiment, in order to register the device IDs of the other portable device 1 and on-vehicle device 2 as a pair in the own device, a plurality of devices forming the same group are brought to one place (for example, (They are brought into the vehicle based on the vehicle-mounted device 2). Then, of the plurality of devices (portable device 1 or in-vehicle device 2) constituting the same group, the device other than any one device is shifted to the maintenance mode, and in that state, the device is still in the normal mode. Transmitted a radio signal (for example, the above-described notification instruction signal or the like) including the device ID of the own device, and transmitted the same signal in normal mode to the RAM of a plurality of other devices in maintenance mode. The device ID included in the wireless signal is stored. The occupant sequentially performs such an operation on a plurality of devices constituting the same group. The registration process performed in the portable device 1 and the vehicle-mounted device 2 in the maintenance mode will be described below.

FIG. 6 is a flowchart showing a process of registering a device ID in a maintenance mode of a portable device and a vehicle-mounted device according to an embodiment of the present invention.

In the figure, step S301: R
It is detected whether or not a predetermined operation registered in the OMs 16 and 26 has been performed. If YES (detected), the process proceeds to step S302.

Step S302: When the radio signal is received from outside within a predetermined time and the format of the signal has each field shown in FIG. 2, it is included in the signal having the highest electric field strength among the received signals. The device ID is stored as an identification number of a device forming the same group.

According to the embodiment described above, the display 14 and / or the buzzer (or the vibration generating unit) 20 are displayed on the portable device 1 in response to the operation of the notification instruction switch 6 or 7 on the vehicle-mounted device 2. Notification can be performed.

Thus, for example, when the first occupant carrying the portable device 1 is away from the vehicle, the second occupant not carrying the portable device 1 can be used as an errand for the first occupant. At any time, even if the user does not go out to search for the first occupant, if the user operates the notification instruction switch 6 or 7 provided inside or outside the vehicle, the portable device 1 calls the above-mentioned attention according to the operation. For this reason, the first occupant can recognize that the second occupant is called in the vicinity of the vehicle, and the convenience is improved. In particular, when the second occupant who is not carrying the portable device 1 tries to open the door when the first occupant carrying the portable device 1 has left the vehicle with the door locked. By operating the notification instruction switch 7, the first occupant is called by the second occupant in the vicinity of the vehicle without searching for the first occupant and requesting the door lock to be released. Can be recognized. Further, if the notification instruction switch 7 is a switch capable of detecting the operation state of the outer door handle, it is possible to recognize a person operating the door of the vehicle when the occupant is away from the vehicle, and to prevent crime. The specific effect of improvement of is obtained.

Further, according to the present embodiment, when the notification instruction switch 13 of the portable device 1 is operated, when the on-vehicle device 2 is located within a range for recognizing the transmitted notification instruction signal, the on-vehicle device 2 newly transmits. Is transmitted, the display 14 and / or the buzzer (or the vibration generating unit) 20 can grasp the current state of the door lock mechanism 3, thereby improving the convenience.

Further, according to the present embodiment, by operating the notification instruction switch 13 of the portable device 1, the other portable devices 1 paired with the range in which the transmitted notification instruction signal is recognized can be recognized.
When is located, the display 14 and / or the buzzer (or the vibration generating unit) 20 can be used to notify the other portable device of attention, thereby improving convenience.

<Modification of First Embodiment> In this modification, as another method for maintaining security between the portable device 1 and the vehicle-mounted device 2, a bit is transmitted every time a radio signal is transmitted from the portable device 1. Add a rolling bit field with a different array. In this case, the difference from the first embodiment is that a rolling bit field is added to the format of each signal shown in FIG.

In the present modification, the bit arrangement of the rolling bit changes in the same manner each time transmission / reception is performed between the portable device 1 and the on-vehicle device 2. The in-vehicle device 2 compares the bit array of the current rolling bit calculated by itself with the bit array of the rolling bit received from the mobile device 1 and when the comparison result matches, Only the wireless signal received this time is determined as a signal from the legitimate (paired) portable device 1 and lock / unlock operation is performed.

According to this modification, the same effects as those of the first embodiment can be obtained.

[Second Embodiment] In the present embodiment, the first
Based on the hardware of the portable device 1 and the in-vehicle device 2 described in the first embodiment, the portable device 1
1 and the lock switch 12, the unlock signal is transmitted at a predetermined electric field strength, and the portable device 2 receives the unlock signal according to the electric field strength when the unlock signal is received.
A case where the door lock mechanism 3 performs a lock operation or an unlock operation will be described. For this reason, in the following description, portions different from those of the first embodiment will be mainly described, and redundant description will be omitted.

FIG. 7 is a flowchart showing a part of the control processing performed by the portable device according to the second embodiment of the present invention, which is different from FIG. 4 according to the first embodiment.

In the present embodiment, in step S2, the portable device 1 determines whether or not the operation state of the notification instruction switch 13 detected in step S1 is an ON state (pressed state). When the switch is pressed), a notification instruction signal is transmitted in step S102 as in the first embodiment, and when NO, an unlock signal is transmitted with a predetermined electric field strength in step S103. Subsequent processing is the same as that after step S7 in FIG.

FIG. 8 is a flowchart showing a part of the control processing performed by the vehicle-mounted device according to the second embodiment of the present invention, which is different from FIG. 5 according to the first embodiment.

In this embodiment, after identifying the operation type represented by the received signal in step S28, the on-vehicle device 2 determines whether the received signal is an unlock operation in step S201. When the signal is a lock signal, the process proceeds to step S202, and when the received signal is a notification instruction signal, the process proceeds to step S31 in FIG. Then, in step S202, by determining whether or not the electric field strength of the received signal, which is the unlock signal, is greater than a predetermined value, the portable device 1 that is transmitting the unlock signal with the predetermined transmission strength is determined. It is determined whether the in-vehicle device 1 is within a range (region) in which the door lock mechanism 3 is to be unlocked, or is located outside the range.
In this determination, when the electric field strength is larger than the predetermined value (S1), it is determined that the unlock operation is necessary.

Steps S203 and S204: The door lock mechanism 3 is caused to perform a locking operation or an unlocking operation according to the judgment in the step S202. Subsequent processing is the same as that after step S31 in FIG.

According to this embodiment, the same effects as those of the first embodiment can be obtained, and the convenience in the keyless entry system can be improved.

[0071]

As described above, according to the present invention,
Both the portable device and the in-vehicle device include a transceiver, and in the keyless entry system that reports the door lock state of the in-vehicle device in the portable device, the portable device notifies the portable device in response to an operation detected on the in-vehicle device side. Can be performed.

That is, according to the first aspect of the present invention, for example, in response to the operation of an outer door handle or the like (Claims 2 and 3) outside the vehicle, sound or vibration is generated by the portable device (Claim 8). ), It is possible to alert the occupant carrying the portable device. For this reason, convenience is improved. In particular, according to the third aspect of the present invention, the notification is performed by the portable device in response to the operation of the outer door handle of the vehicle, so that a third person different from the occupant can enter the vehicle. It can be recognized and the security can be improved.

According to the fourth aspect of the present invention, simple communication can be achieved by notification between a plurality of portable devices in the same group that forms a pair.

According to the sixth aspect of the present invention, an apparatus (portable device and in-vehicle device) forming the same group by a simple method
Can be registered.

According to the invention of claim 7, the security of two-way communication between the portable device and the on-vehicle device can be improved.

[Brief description of the drawings]

FIG. 1 is a block diagram of a keyless entry system according to a first embodiment of the present invention.

FIG. 2 is a diagram illustrating a configuration of a transmission signal according to the first embodiment of the present invention.

FIG. 3 is a diagram illustrating a configuration of a challenge signal and a response signal according to the first embodiment of the present invention.

FIG. 4 is a flowchart of a control process performed by the portable device according to the first embodiment of the present invention.

FIG. 5 is a flowchart of a control process performed by the on-vehicle device according to the first embodiment of the present invention.

FIG. 6 is a flowchart illustrating registration processing of a device ID in a maintenance mode of a portable device and a vehicle-mounted device according to an embodiment of the present invention.

FIG. 7 is a flowchart showing a part of a control process performed by the portable device according to the second embodiment of the present invention, which is different from FIG. 4 according to the first embodiment.

FIG. 8 is a flowchart showing a part of a control process performed by the on-vehicle device according to the second embodiment of the present invention, which is different from FIG. 5 according to the first embodiment.

[Explanation of symbols]

 1: portable device, 2: on-board device, 3: door lock mechanism, 6: notification instruction switch (inside the vehicle), 7: notification instruction switch (outside the vehicle), 11: unlock switch, 12: lock switch, 13: notification instruction switch , 14: display, 15, 25: CPU, 16, 26: ROM, 17, 27: RAM, 18, 28: transmitter, 19, 29: receiver, 20: buzzer,

 ──────────────────────────────────────────────────続 き Continued on front page F term (reference) 2E250 AA21 BB08 BB65 DD06 EE02 EE08 EE10 FF23 FF24 FF27 FF36 HH01 JJ03 KK03 LL01 SS05 TT03 UU01 VV01 5K048 AA04 BA42 BA52 BA53 CA11 DA01 DB01 DC01 EA16 EB02

Claims (10)

[Claims] An in-vehicle device controls a lock / unlock operation of a door lock mechanism in accordance with a radio signal transmitted from the portable device. A keyless entry system for notifying the portable device of an operation state of the door lock mechanism, wherein the in-vehicle device detects a predetermined operation and transmits a predetermined radio signal to the portable device to instruct the portable device to be notified. A keyless entry system, wherein the keyless entry system transmits a signal, and the portable device performs a notification operation when receiving the predetermined wireless signal. 2. The keyless entry system according to claim 1, wherein the predetermined operation is an operation of an operation unit provided outside a vehicle on which the on-vehicle device is mounted. 3. The keyless entry system according to claim 2, wherein the operation unit is an outer door handle provided outside the vehicle. 4. A portable device capable of two-way communication and a vehicle-mounted device, wherein the vehicle-mounted device controls a locking / unlocking operation of a door lock mechanism in accordance with a radio signal transmitted from the portable device. A keyless entry system for notifying the portable device of an operation state of the door lock mechanism, wherein the keyless entry system includes a plurality of the portable devices, and among the portable devices, a first portable device includes: A keyless entry system, wherein when a predetermined radio signal transmitted by performing a predetermined operation in a second portable device is received, a notification operation is performed in the first portable device. 5. A predetermined operation in the second portable device is different from an operation for performing a lock / unlock operation of the door lock mechanism.
The described keyless entry system. 6. The first portable device stores, in a maintenance mode, individual identification information included in a radio signal received from the second portable device or the on-vehicle device in a memory. The keyless entry system according to claim 1 or 4. 7. The keyless entry system, when the in-vehicle device receives the predetermined wireless signal from outside,
The vehicle-mounted device and the portable device according to claim 1 or 4, further comprising a determination unit configured to determine whether the received wireless signal is a proper wireless signal transmitted from the portable device. Keyless entry system. 8. The keyless entry system according to claim 1, wherein the mode of the notification operation is sound or vibration. 9. The vehicle-mounted device controls a locking / unlocking operation of the door lock mechanism in accordance with a received electric field intensity of a radio signal transmitted from the portable device. Item 4. The keyless entry system according to Item 4. 10. The in-vehicle device controls a lock / unlock operation of the door lock mechanism in response to a predetermined wireless signal indicating lock or unlock transmitted in response to an operation of the portable device. 2. The method according to claim 1, wherein
Or the keyless entry system according to claim 4.