JPH08120992A - Keyless entry system - Google Patents

Abstract

PURPOSE: To promote the prevention of loss, a reduction in cost and an improvement in conveniency by having a control part equipped with a control signal transmitter or the like inclusive of identification information built-in a wristwatch, while using those of a car door, an engine and a house door in combination. CONSTITUTION: A transmitting part 18 or the like of a keyless entry system is built in a control part 12 controlling a clock driving part 17, while those of car ID data and house ID data are stored in memory, making them so as to be usable for a car and a house both. In addition, a key switch performing the adjustment of time or the like of a clock and another key switch for transmission are combinedly used together, thereby checking any rise in cost. In brief, a mode setting key K1 is operated, setting a clock mode and a remote control mode, and when the remote control mode is the case, further a mode setting key K2 is also operated, and thereby locking and unlocking of a car door, on-off of an engine and locking and unlocking a house door are all set up. In succession, an execution key K3 is pushed and then locked, and another execution key K4 is pushed and then unlocked. With this constitution, carrying a transmitter becomes facilitated, and thus any possible loss is obviable.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a keyless entry system for remotely locking / unlocking an automobile door and starting / stopping an engine.

[0002]

2. Description of the Related Art Conventionally, there is a keyless entry system for remotely locking / unlocking a vehicle such as an automobile or a door of a residence and starting / stopping an engine of a vehicle such as an automobile. This Kirase entry system is a transmitter (so-called remote controller) that transmits a control signal including an ID signal by key operation, and a door lock controller or engine start / stop that locks / unlocks a door based on the received control signal. And a receiver for controlling the engine controller. The transmission device is carried by the user as a portable device, and the reception device is arranged near the device to be controlled.

[0003]

However, such a conventional keyless entry system has the following problems. (A) In many cases, the remote control and the key for mechanically locking / unlocking the door are integrated, and the overall shape is large, making it inconvenient to carry around. (B) Since the remote control is carried by hand or carried in a pocket or a back, it could be lost or damaged by being dropped.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a keyless entry system which can be downsized as a whole and which can be prevented from being lost or dropped.

[0005]

In order to achieve the above object, a keyless entry system according to the invention of claim 1 is a transmitting means for transmitting a control signal including ID information, and the control transmitted from this transmitting means. In a keyless entry system including a receiving means for receiving a signal and a control means for controlling an apparatus based on the control signal received by the receiving means, the transmitting means is built in a wristwatch. . In a preferred embodiment, the control signal is generated based on a key signal obtained by a combination operation of a plurality of key switches for adjusting the time and the like of the wristwatch, as in the invention according to claim 2, You may make it output to the said transmission means.

For example, as in the invention described in claim 3, an ID information storage means for storing a plurality of ID information determined in advance according to the difference of the device and a key signal obtained by a combination operation of the key switch Selection means for selecting one of the respective pieces of ID information stored in the ID information storage means based on the basis, and ID information temporary storage means for temporarily storing the ID information selected by the selection means. The control signal output means may generate the control signal based on the key signal obtained by the combination operation of the key switches and the ID information stored in the ID information temporary storage means. For example, as in the invention according to claim 4, the device is a door lock controller for locking / unlocking a door of a vehicle such as an automobile, an engine controller for starting / stopping an engine of the vehicle, or a door of a residence. Any of the door lock controllers for locking / unlocking the above may be used.

[0007]

In the present invention, the transmitting means of the keyless entry system is built into the wristwatch, so that it is easy to carry around, and there is almost no risk of losing or dropping it and causing it to malfunction. Further, since the key switch for adjusting the time and the like of the wristwatch is also used as the key switch of the transmitting means, the increase in cost can be suppressed to a low level. Further, since a plurality of pieces of ID information are stored, for example, when vehicle ID information and house ID information are stored, both the automobile and the house can be locked.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 is a front view of a wristwatch 100 to which a transmitter of an embodiment of a keyless entry system according to the present invention is applied. The keyless entry system of this embodiment includes the wristwatch 100 described above and a receiving device 110 mounted on an automobile. A. Configuration of Keyless Entry System (a) External Configuration of Wristwatch 100 In FIG. 1, 1 is a wristwatch body, 2 is a band, 3 is a needle,
Reference numeral 4 is a day of the week display window, and 5 is a display section for displaying a mode. K1 is a mode setting key for setting the time setting mode and the remote control mode. That is, each time the mode setting key K1 is pressed, the time setting mode, remote control mode,
The time setting mode is set repeatedly. K2 is a mode setting key for setting each control target in the remote control mode. That is, every time the mode setting key K2 is pressed, the vehicle door lock / unlock, the vehicle engine start / stop, the house door lock / unlock,
It is repeatedly set to lock / unlock the vehicle door.

Each of K3 and K4 is an execution key for executing vehicle door lock / unlock, vehicle engine start / stop, and house door lock / unlock, and in the vehicle door lock / unlock mode. When the run key K3 is pressed on, the vehicle door is locked, and the run key K4
Press to unlock the vehicle door. In addition, when the engine of the vehicle is in the start / stop mode, the execution key K
Press 3 to start the vehicle engine and select key K4
Press to stop the vehicle engine. Further, when the execution key K3 is pressed in the house door lock / unlock mode, the house door is locked, and when the execution key K4 is pressed, the house door is unlocked.

(B) Circuit configuration of wristwatch 100 FIG. 2 is a block diagram showing the circuit configuration of the wristwatch 100. In this figure, 10 is an oscillating unit, which outputs a reference clock signal. Reference numeral 11 denotes a frequency divider, which divides the reference clock signal output from the oscillator 10 and outputs a clock signal required for this device. The clock signal frequency-divided by the frequency divider 11 is taken into the controller 12. Reference numeral 13 denotes a key input section, which is the mode setting key K described above.
The key data corresponding to the combination of 1, K2 and the execution keys K3, K4 is output. Reference numeral 14 is a RAM, and the control unit 12
Used in the operation of.

(C) Area map of RAM 14 The following register areas are set in the RAM 14. Display register: register used for various displays M register: register used for setting mode M = 0: time setting mode M = 1: remote control mode N register: vehicle door lock / unlock, vehicle Register for setting engine start / stop and residential door lock / unlock N = 00: Vehicle door lock / unlock mode N = 01: Vehicle engine start / stop mode N = 10: Residential Door lock / unlock mode

Reference numeral 15 denotes a ROM, which is a program for controlling the control unit 12, ID data for an automobile, and I for a residence.
D data and are written. Reference numeral 16 denotes a display control unit which displays the display unit 5 in accordance with the display data and control signals supplied from the control unit 12. Reference numeral 17 is a timepiece drive unit, which drives the hands 3. Reference numeral 18 denotes a transmitter, which includes an FSK modulation circuit (not shown), a multiplication circuit, a high frequency amplification circuit,
It is composed of a band pass filter and a matching circuit, and the carrier wave is FS by the control signal supplied from the control unit 12.
K-modulate and transmit. Reference numeral 19 is a transmitting antenna.

(D) Control content of the control unit 12 Clock processing is performed based on the clock signal output from the frequency dividing unit 11, display data for displaying time is created, and the control data is sent to the display control unit 16 together with the control signal. Output. The key data output from the key input unit 13 and the ID data corresponding to the key data are read from the ROM 15, control data is generated from these data, and the transmission unit 1
Output to 7. In this case, for example, the mode setting key K1
When the execution key K3 is pressed in a state where the remote control mode is set by and the vehicle door lock / unlock mode is set by the mode setting key K2, key data for locking the vehicle door from the key input unit 13 is set. Is output, the control unit 12 inputs this key data, reads the ID data corresponding to the automobile from the ROM 15, generates control data from these data, and transmits the data.
Output to 8. As a result, a control signal for locking the vehicle door is transmitted.

Similarly, the remote control mode is set by the mode setting key K1 and the mode setting key K2 is set.
When the execution key K4 is pressed while the vehicle door lock / unlock mode is set by, the key data for unlocking the vehicle door is output from the key input unit 13, and the control unit 12 outputs the key data. And enter
The ID data corresponding to the automobile is read from the ROM 15, control data is generated from these data, and the transmission unit 17
Output to. As a result, a control signal for unlocking the door of the automobile is transmitted. When the execution key K3 is pressed while the remote control mode is set by the mode setting key K1 and the engine start / stop mode of the vehicle is set by the mode setting key K2, the engine of the vehicle is started from the key input unit 13. The key data for the operation is output, the control unit 12 inputs the key data, reads the ID data corresponding to the vehicle from the ROM 15, generates control data from these data, and outputs the control data to the transmission unit 17. As a result, a control signal for starting the automobile engine is transmitted.

When the remote control mode is set by the mode setting key K1 and the engine start / stop mode of the vehicle is set by the mode setting key K2, when the execute key K4 is pressed, the key input unit 13 outputs the vehicle The key data for stopping the engine is output, and the control unit 12 inputs this key data and R
Read the ID data corresponding to the car from OM15,
Control data is generated from these data and output to the transmitter 17. As a result, a control signal for stopping the engine of the automobile is transmitted.

When the execution key K3 is pressed while the remote control mode is set by the mode setting key K1 and the door lock / unlock mode of the house is set by the mode setting key K2, the house is input from the key input unit 13. The key data for locking the door is output, the control unit 12 inputs the key data, reads the ID data corresponding to the house from the ROM 15, generates control data from these data, and outputs the control data to the transmission unit 17. . This sends a control signal to lock the dwelling door. When the execution key K4 is pressed in the state where the remote control mode is set by the mode setting key K1 and the door lock / unlock mode of the house is set by the mode setting key K2, the key input unit 13 opens the door of the house. The key data for unlocking is output, and the control unit 1
2 inputs the key data, reads the ID data corresponding to the house from the ROM 15, generates control data from these data, and outputs the control data to the transmission unit 17. This sends a control signal to unlock the door of the residence.

(E) Circuit Configuration of Receiving Apparatus 110 FIG. 3 is a block diagram showing the circuit configuration of the receiving apparatus 110. In this figure, 50 is a RAM, and a control unit 51
Used in the operation of. Reference numeral 52 is a ROM, which is a program for controlling the control unit 51 and an ID for an automobile.
Data and ID data for residence are written.
Reference numeral 53 denotes a receiver, which includes a bandpass filter (not shown),
It is composed of a high frequency amplifier circuit, a mixer, a local oscillator and a wave detector, and demodulates and outputs control data from the received control signal. Reference numeral 54 is a receiving antenna.

When the control unit 51 receives the control data output from the receiving unit 53, the control unit collates the ID data of this control data with the ID data stored in the ROM 52. The key data of is output to an engine controller (not shown) or a door lock controller. In this case, if the key data is for locking the door, this key data is output to the door lock controller. As a result, the door lock controller controls the door lock actuator (not shown) to lock the door.

B. Operation of Keyless Entry System (a) Operation of Wrist Watch 100 FIG. 5 is a flowchart showing the operation of the wrist watch 100. First, in step S10, it is determined whether a key input has been made. If it is determined in this determination that no key input has been performed, the process proceeds to step S12, and a time counting process is performed. Then, in step S14, drive processing is performed. That is, the hands 3 of the clock are driven. If it is determined in step S10 that there is a key input, step S1
In step 6, it is determined whether the key input is the mode setting key K1. In this judgment, the mode setting key K1
If it is determined that it is, the process proceeds to step S18, and it is determined whether the value of the M register is "0", that is, the time setting mode.

In this judgment, the value of the M register is "0".
If it is determined that the value is M, the process proceeds to step S20 and the value of the M register is set to "1". Then, in step S22, display processing is performed. In this case, a display indicating the remote control mode is displayed on the display unit 5. After this process step S10
Return to On the other hand, in the determination of step S18, M
If it is determined that the register value is not "0", step S2
Then, the process proceeds to 4 and sets the value of the M register to "0". Then, in step S22, display processing is performed. In this case, a display indicating that it is in the time setting mode is displayed on the display unit 5. After this processing, the process returns to step 10.

If it is determined in step S16 that the key input is not the mode setting key K1, step S16
26 (FIG. 6), it is determined whether the key input is the mode setting key K2. If it is determined that the key is the mode setting key K2 in this determination, the process proceeds to step S28,
It is determined whether the value of the M register is "1".
That is, it is determined whether or not the remote control mode is set.
If it is determined that the value of the M register is not "1" in this determination, the processing is terminated without doing anything. On the other hand, if it is determined that the value of the M register is "1", the process proceeds to step S30 to determine whether the value of the N register is "00", that is, whether the vehicle door lock / unlock mode is set. Whether or not it is determined. If it is determined that the value of the N register is not "00" in this determination, the value of the N register is set to "01" in step S32. After changing the value of the N register, the process is exited.

If it is determined in step S30 that the value of the N register is not "00", the process proceeds to step S34 to determine whether the value of the N register is "01", that is, the vehicle engine start / stop mode. It is determined whether or not. If it is determined that the value of the N register is "01" in this determination, the process proceeds to step S36,
Set the value of the N register to "10". After changing the value of the N register, the process is exited. On the other hand, if it is determined that the value of the N register is not "01", the process proceeds to step S38, and the value of the N register is set to "00". After changing the value of the N register, the process is exited.

If it is determined in step S26 that the key input is not the mode setting key K2, step S26
40 (FIG. 7), it is determined whether the key input is the execution key K3. If the execution key K3 is determined in this determination, the process proceeds to step S42, and it is determined whether the value of the M register is "1". That is, it is determined whether or not the remote control mode is set. If it is determined in this determination that the value of the M register is "1", the process proceeds to step S44, the time adjustment process is performed, and the process is exited. On the other hand, if it is determined that the value of the M register is "1", the process proceeds to step S46, and the value of the N register is "0".
It is determined whether it is "0". N in this judgment
When it is determined that the register value is "00", the process proceeds to step S48, and the control signal for vehicle door lock is transmitted. After this transmission is performed, the process ends.

On the other hand, if it is determined that the value of the N register is not "00", the flow advances to step S50 to determine whether the value of the N register is "01". If it is determined in this determination that the value of the N register is "01", the process proceeds to step S52, and a control signal for starting the engine of the vehicle is transmitted. After this transmission is performed, the process ends. On the other hand, if it is determined that the value of the N register is not "01", the process proceeds to step S54, and it is determined whether the value of the N register is "10". If it is determined that the value of the N register is not "10" in this determination, the process ends. On the other hand, if it is determined that the value of the N register is "10", the process proceeds to step S56, and the control signal for the door lock of the house is transmitted. After this transmission is performed, the process ends.

If it is determined in step S40 that the key input is not the mode setting key K3, step S40
Proceeding to 58 (FIG. 8), it is determined whether or not the key input is the execution key K4. If it is determined in this determination that it is not the execution key K4, the process is exited. On the other hand, if the execution key K4 is determined, the process proceeds to step S60, and it is determined whether the value of the M register is "1". That is, it is determined whether or not the remote control mode is set. When it is determined in this determination that the value of the M register is "1", the process proceeds to step S62, the time adjustment process is performed, and the process is exited. On the other hand, if it is determined that the value of the M register is "1", the process proceeds to step S64, and it is determined whether the value of the N register is "00". If it is determined that the value of the N register is "00" in this determination, the process proceeds to step S66, and a control signal for unlocking the door of the vehicle is transmitted. After performing this transmission, the process is exited.

On the other hand, if it is determined that the value of the N register is not "00", the process proceeds to step S68, and it is determined whether the value of the N register is "01". If it is determined that the value of the N register is "01" in this determination, the process proceeds to step S70, and a control signal for stopping the engine of the vehicle is transmitted. After this transmission is performed, the process ends. On the other hand, if it is determined that the value of the N register is not "01", the process proceeds to step S72 to determine whether the value of the N register is "10". If it is determined that the value of the N register is not "10" in this determination, the process ends. On the other hand, if it is determined that the value of the N register is “10”, the process proceeds to step S74, and the control signal for unlocking the door of the house is transmitted. After this transmission is performed, the process ends.

(B) Operation of Receiver 110 FIG. 9 is a flowchart showing the operation of the wristwatch 100. First, in step S100, it is determined whether or not there is a control signal. If it is determined that there is no control signal in this determination, this step is repeated, and if it is determined that there is a control signal, the process proceeds to step S102, and it is determined whether the control signal is for locking the vehicle door. If it is determined in this determination that the vehicle is for door lock, step S1
In step 04, the control data for the vehicle door lock is output. After outputting this control data, the process returns to step S100. On the other hand, if it is determined that the vehicle is not for locking the door, the process proceeds to step S106 to determine whether the vehicle is for unlocking the door. If it is determined in this determination that the vehicle is for unlocking the door, step S108
Then, the control data for unlocking the door of the vehicle is output. After outputting this control data, the process returns to step S100.

If it is determined in step S106 that the vehicle is not for unlocking the door, the process proceeds to step S110 to determine whether the engine is for starting the vehicle. If it is determined in this determination that the engine of the vehicle is for starting, the process proceeds to step S112, and the control data for starting the engine of the vehicle is output. After outputting this control data, the process returns to step S100. Step S
If it is determined in 110 that the engine is not for starting the engine of the vehicle, the process proceeds to step S114 to determine whether the engine is for stopping the engine of the vehicle. If it is determined in this determination that the engine is for the vehicle engine stop, the process proceeds to step S116, and control data for the vehicle engine stop is output. After outputting this control data, the process returns to step S100.

If it is determined in step S114 that the vehicle is not for engine stop, step S118
Proceed to to determine whether the door is for a house door lock. When it is determined in this determination that the door is for the door of the residence, the process proceeds to step S120, and the control data for the door of the residence is output. After outputting this control data,
It returns to step S100. If it is determined in step S118 that the door is not for a house door lock, step S118
Proceeding to 122, it is determined whether the door is for unlocking the door. If it is determined in this determination that the door is for unlocking the house, the process proceeds to step S124, and control data for unlocking the door for the house is output. After outputting this control data, the process returns to step S100.

The effects of this embodiment can be summarized as follows. (A) Since the transmitting means of the keyless entry system is built into the wristwatch, it is easy to carry around, and there is almost no risk of it being lost or damaged. (B) Further, since the key switch for adjusting the time and the like of the wristwatch is also used as the key switch of the transmitting means,
The increase in cost can be kept low. (C) Further, since the vehicle ID data and the house ID data are stored, both the car and the house can be locked.

The present invention is not limited to the above-mentioned embodiments, but various embodiments are possible within the scope of the object of the present invention. Specifically, it may be implemented as follows. (A) Two ID data sets were provided, one for the vehicle and one for the house.
In addition, for example, ID data for automatic shutter may be provided. (B) The ID data for the vehicle and the ID data for the house are stored in the ROM 15 for storing the control program, but each ID data may be stored exclusively as shown in FIG. 4, for example. In this case, reference numeral 60 is a vehicle ID
A storage element that stores data, and a storage element 61 that stores a house ID. An arbitrary one is selected by switching these storage elements with the changeover switch 62. A fuse ROM is suitable as the storage element. By using the storage element for storing the dedicated ID data as described above, there is an advantage that the change is facilitated.

(C) Although the control signal is transmitted using radio waves, light such as infrared rays may be used. (D) Although the key switch on the transmission side is also used as the key switch of the timepiece, dedicated key switches K1 to K4 may be provided as shown in FIG. 10, for example. This has the advantage that the operation is simple. In this case, the doors can be locked / unlocked with keys K1 and K2, and the engine can be started / stopped with keys K3 and K4.
At. Further, the selection key K5 is used to switch between the vehicle ID data and the residential ID data. The keys K3 and K4 for starting / stopping the engine are provided on the side surface of the wristwatch body, so that there is an advantage that erroneous operation is less likely to occur. (E) If the wristwatch is a mechanical type wristwatch, a transmitter 71 may be attached to the lower portion of the timepiece mechanical section 70 as shown in the sectional view of FIG. (F) Although it is applied to vehicles and homes, it goes without saying that it can also be applied to remote control electric appliances and the like.

[0033]

According to the present invention, the following effects can be obtained. (1) Since the transmitting means of the keyless entry system is built into the wristwatch, it is easy to carry around, and there is almost no risk of losing or dropping it and causing it to malfunction. (2) Since the key switch for adjusting the time of the wristwatch is also used as the key switch of the transmitting means,
The increase in cost can be kept low. (3) Further, since the vehicle ID data and the house ID data are stored, both the car and the house can be locked.

[Brief description of drawings]

FIG. 1 is a front view showing the outer appearance of a wrist watch to which a transmitter of an embodiment of a keyless entry system according to the present invention is applied.

FIG. 2 is a block diagram showing a circuit configuration of a wrist watch to which the transmitter of the keyless entry system of the embodiment is applied.

FIG. 3 is a block diagram showing a circuit configuration of a receiving device of the keyless entry system of the embodiment.

FIG. 4 is a block diagram showing a partial configuration of an application example of a transmission device of the keyless entry system of the same embodiment.

FIG. 5 is a flowchart showing an operation of a wrist watch to which the transmitting device of the keyless entry system of the embodiment is applied.

FIG. 6 is a flowchart showing an operation of a wrist watch to which the transmitting device of the keyless entry system of the embodiment is applied.

FIG. 7 is a flowchart showing the operation of the wristwatch to which the transmitting device of the keyless entry system of the embodiment is applied.

FIG. 8 is a flowchart showing an operation of a wrist watch to which the transmitting device of the keyless entry system of the embodiment is applied.

FIG. 9 is a flowchart showing an operation of the receiving device of the keyless entry system according to the embodiment.

FIG. 10 is a diagram showing the external appearance of a wrist watch that is an application example of the transmission device of the keyless entry system of the same embodiment.

FIG. 11 is a cross-sectional view of a wristwatch that is an application example of the transmitter of the keyless entry system of the same embodiment.

[Explanation of symbols]

 1 Watch body 5 Display section K1, K2 Mode setting key K3, K4 Execution key K5 selection key 10 Oscillation section 11 Dividing section 12, 51 Control section 13 Key input section 14, 50 RAM 15, 52 ROM 16 Display control section 17 Clock Drive unit 18 Transmitter unit 19 and 54 Antenna 53 Receiver unit 60 and 61 Storage element 62 Changeover switch 70 Clock mechanism unit 71 Transmitter device 100 Wristwatch 110 Receiver device

Claims (4)

[Claims] 1. A transmitting means for transmitting a control signal including ID information, a receiving means for receiving the control signal transmitted from the transmitting means, and a device for equipment based on the control signal received by the receiving means. In a keyless entry system including control means for controlling, the transmitting means is built in a wristwatch. 2. A control for generating the control signal on the basis of a plurality of key switches for adjusting the time and the like and a key signal obtained by a combination operation of the key switches and outputting the control signal to the transmitting means. The keyless entry system according to claim 1, further comprising a signal output means. 3. ID information storage means for storing a plurality of ID information determined in advance according to the difference of the device, and stored in the ID information storage means based on a key signal obtained by a combination operation of the key switches. Each I
The control signal output means further includes a selection means for selecting one of the D information and an ID information temporary storage means for temporarily storing the ID information selected by the selection means. 3. The keyless entry system according to claim 2, wherein the control signal is generated based on a key signal obtained by a switch combination operation and the ID information stored in the ID information temporary storage means. 4. The device locks / unlocks a door lock controller for locking / unlocking a door of a vehicle such as an automobile, an engine controller for starting / stopping an engine of the vehicle, or a door of a residence. The keyless entry system according to any one of claims 1 to 3, which is a door lock controller.