JPH09209630A - Portable transmitter and keyless system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the power consumption of a transmitter, and to decrease the frequency of battery exchange by fitting a mode changover button to the transmitter installed to a key for a car and transmitting electric waves only for a set time zone. SOLUTION: A mode changeover button 6 for a transmitter 3 mounted on a key for a car is operated, and a time-zone mode in one day is set. Consequently, electric waves containing an intrinsic identification code and a release code are transmitted automatically from the transmitter 3 only for the set time. A receiver loaded on the car receives the electric waves, the received identification code and an identification code held by the receiver are collated, and a door lock is released when both codes coincide. As a result, since the radio transmission of the transmitter 3 is limited only in a set time zone, the consumption of a battery is reduced. A locking button 4 and a release button 5 are fitted to the transmitter 3, and the lock may be locked and released even for the time excepting the set time by operating these buttons 4, 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable transmitter and a keyless system.

[0002]

2. Description of the Related Art Conventionally, there is a keyless system for automatically locking and unlocking a door lock of a vehicle by wirelessly remote-controlling it using a portable transmitter.

This keyless system is mounted on a vehicle, and is a door locking device for locking and unlocking a vehicle door, a receiving device for which a specific identification code is set for the vehicle, and a radio wave modulated by the identification code. It is composed of a portable transmission device.

FIG. 12 is a block diagram showing the configuration of a portable transmitter 61 used in a conventional keyless system. The portable transmission device 61 includes a code setting circuit 62 for setting a unique identification code, a transmission circuit 63 for transmitting a transmission radio wave in which a carrier wave is modulated by the identification code from a transmission antenna 64,
It is composed of a battery 65 that supplies electric power to the portable transmission device 61.

Thus, the portable transmitting device continuously or intermittently transmits the electric wave modulated by the identification code, and the electric wave transmitted by the portable transmitting device is received by the receiving device mounted on the vehicle. The receiving device demodulates the received radio wave and extracts the identification code.If the extracted identification code matches the unique identification code held in the receiving device,
Unlock the vehicle door lock.

Therefore, it is not necessary for the person carrying the portable transmitting device to operate the operation button, and when the person carrying the portable transmitting device approaches the vehicle and the radio wave is received by the receiving device, the door lock of the vehicle is unlocked. When the carrier of the portable transmission device leaves the vehicle and radio waves are no longer received by the reception device, the vehicle door lock is locked.

[0007]

However, since the conventional portable transmitter is so small that it is convenient to carry, a small battery such as a button type lithium battery is used as the battery built in the portable transmitter. . For this reason, if radio waves are continuously transmitted from the mobile transmitter continuously or intermittently, the battery of the mobile transmitter will be exhausted rapidly, and the battery will run out in a short period of time. There was a problem that had to be.

The present invention has been made in view of the above-mentioned drawbacks of conventional examples, and an object thereof is to provide a portable transmission device for a system having a function of locking and unlocking a door without operating a button. Power consumption.

[0009]

A portable transmitting device according to claim 1 is used in a system for controlling a door lock by receiving a predetermined radio wave, and emits a radio wave for unlocking the door lock. The portable transmission device is characterized in that a radio wave for unlocking the door lock is automatically emitted continuously or intermittently in a predetermined time period.

The portable transmitter according to the present invention automatically emits a radio wave for unlocking the door lock only in a predetermined time zone of the day, and does not automatically emit the radio wave in other time zones. Therefore, by setting the transmission time period in the time period in which the door is frequently opened and closed, the power consumption of the transmission device can be reduced without sacrificing convenience.

Therefore, it is possible to suppress the consumption of the battery built in the portable transmitter, extend the life of the battery, and reduce the frequency of battery replacement.

According to a second aspect of the present invention, in the portable transmitting apparatus according to the first aspect, there is provided switch means for emitting a radio wave which is operated by a person, and the switch means is provided outside the predetermined time zone. It is characterized in that the radio wave is emitted by operating.

In this embodiment, since the switch means is provided, the door lock can be unlocked arbitrarily by operating the switch means even outside the radio wave transmission time zone.

According to a third aspect of the present invention, there is provided the portable transmission device according to the first or second aspect, further comprising setting means for setting the predetermined time zone.

In this embodiment, since the user of the transmitter can set the transmission time zone, it is possible to determine or change the time of automatic transmission of radio waves according to the lifestyle of the user. it can.

The portable transmitter according to claim 4 is used in a system for controlling a door lock by receiving a predetermined radio wave,
A portable transmitting device that emits a radio wave for unlocking the door lock includes a motion detecting unit that detects a motion of a person carrying the portable transmitting device, and the portable unit based on an output of the motion detecting unit. When a person is operating, a radio wave for unlocking the door lock is automatically emitted continuously or intermittently.

In this portable transmitting device, a motion detecting means for detecting the motion of the person carrying the portable transmitting device is provided, and the radio wave is automatically emitted based on the output of the motion detecting means. , When the person carrying the portable transmitter is operating near the door, especially when approaching the door to pass through the door, the operation is detected and a radio wave is emitted to automatically The door lock can be unlocked.

Therefore, for example, when the transmitter is stationary or when the person carrying the transmitter is quiet, no radio wave is transmitted, and the radio wave can be automatically emitted from the transmitter only when necessary. it can. Therefore, even in this portable transmitter, it is possible to suppress the consumption of the built-in battery, extend the life of the battery, and reduce the frequency of battery replacement.

According to a fifth aspect of the present invention, in the portable transmitting apparatus according to the fourth aspect, a switch means for operating a person to emit the radio wave is provided, and even when the wearer is not operating. The radio waves are emitted by operating the switch means.

In this embodiment, since the switch means is provided, the door lock can be arbitrarily unlocked by operating the switch means even when the radio wave is not automatically transmitted.

According to a sixth aspect of the present invention, in the portable transmitting apparatus according to the fourth or fifth aspect, the operation detecting means includes a vibration detecting sensor for detecting vibration, and detects the vibration of the portable transmitting apparatus. The feature is that the movement of the wearer is detected.

In this embodiment, the vibration detecting sensor of the transmitter detects the vibration accompanying the motion of the wearer, detects the motion of the wearer, and transmits the radio wave for unlocking the door lock.

According to a seventh aspect of the present invention, in the portable transmitting device according to the fourth or fifth aspect, the operation detecting means includes a pressure detection sensor for detecting pressure, and detects the pressure of the portable transmitting device. The feature is that the movement of the wearer is detected.

In this embodiment, when the wearer moves to detect the pressure applied to the pressure detection sensor of the transmitter,
It detects the movement of the wearer and transmits a radio wave to unlock the door.

A keyless system according to claim 8 is controlled according to the portable transmitting device according to any one of claims 1 to 7, a receiving device for receiving radio waves from the portable transmitting device, and an output from the receiving device. And a door lock device to be used.

According to this keyless system, the electric wave for unlocking the door lock is transmitted only when it is considered necessary, and the electric wave is received by the receiving device to automatically unlock the door lock. Allow the door to open and close freely.

The ninth aspect of the present invention is the keyless system according to the eighth aspect, wherein the receiving device is provided in a vehicle and the door locking device locks and unlocks a vehicle door. .

In this embodiment, a radio wave for unlocking the door lock is transmitted in a time zone or situation in which the vehicle is frequently used, and the radio wave is received by the receiving device to automatically unlock the door lock. To be able to get on.

[0029]

1 is a front view showing a vehicle key 1 used in a keyless system according to an embodiment of the present invention, in which a (portable) transmitter 3 is provided at the base of a key portion 2. .

The key 1 comprises a key unit 2 and a transmitting device 3,
The transmitting device 3 has a lock button 4, an unlock button 5, a mode switching button 6 and a display unit 7 on its surface. Here, the key portion 2 is directly inserted into a key hole of a vehicle to mechanically lock and unlock a door of a vehicle (not shown). Also,
The transmitting device 3 is the receiving device 8 mounted on the vehicle (FIG. 5).
A door is locked and unlocked by transmitting a radio wave to the door lock device (door lock control unit) 9 from the receiving device 8 and sending a locking signal or an unlocking signal.

In the radio wave transmission mode of the transmitter 3,
There are manual transmission mode and automatic transmission mode. In the manual transmission mode, when the person carrying the key 1 presses the lock button 4, a radio wave including the identification code and the lock code is transmitted from the transmission device 3 to the reception device 8 of the vehicle, and the reception device 8 collates the identification code. When the identification codes match, a lock signal is output to the door lock device 9 to lock the door lock. When the carrier of the key 1 presses the unlock button 5, the transmitter 3 transmits a radio wave including the identification code and the unlock code to the receiver 8 of the vehicle, and the receiver 8 collates the identification code. When the identification codes match, an unlock signal is output to the door lock device 9 to unlock the door lock.

The automatic transmission mode means that the radio wave including the identification code and the unlock code is automatically transmitted when the time zone set in the transmission device 3 within 24 hours a day is transmitted, and the person carrying the key 1 This function automatically unlocks the door lock when approaching the vehicle. Here, in the automatic transmission mode,
Time setting mode Mode1 (hereinafter referred to as setting mode M1), time setting mode Mode2 (hereinafter referred to as setting mode M2), time setting mode Mode3 (hereinafter referred to as setting mode M3)
Time setting mode Mode4 (hereinafter, setting mode M
4) and can be set up to 4 time zones. Of course, the time zones that can be set may be less than four or more than four.

The transmission time zone in the automatic transmission mode is set as follows. Whenever the mode switching button 6 is pressed, the transmitting device 3 causes the transmitting device 3 to be in the normal mode → setting mode M1 → setting mode M2 → setting mode M3 → setting mode M.
4 → Switch to cycle to normal mode. In the normal mode, the transmitting device 3 is in a dormant state (a halt state) in a state in which transmission is possible in the manual transmission mode or the automatic transmission mode as described above. In the normal mode, the display unit 7 may display the date, the current time, or no display.

The lock button 4 also serves as a button for setting the start time of the transmission time zone, and switches to the button for setting the start time in the setting mode. Similarly,
The lock button 4 also serves as a button for setting the end time of the transmission time zone, and switches to a button for setting the start time in the setting mode.

To set the transmission time zone, the mode switching button 6 is pressed to switch to the setting mode M1 to be set. When switched to the setting mode M1, the display unit 7 displays the transmission start time currently set in the setting mode M1. Then, the lock button 4 is pushed to advance the displayed time, and when the start time to be set is displayed, the mode switching button 6 is pushed to fix the start time of the setting mode M1. When the start time is confirmed, the display unit 7
Indicates the transmission end time currently set in the setting mode M1. Then, the unlock button 5 is pushed to advance the displayed time, and when the end time to be set is displayed, the mode switching button 6 is pushed to fix the end time of the setting mode M1. When the mode switching button 6 is pressed to confirm the end time, the transmission device 3 switches to the setting mode M2, and thus the start time and the end time of the setting mode M2 can be set in the same manner. When the time zones of the setting modes M1 to M4 are set in this way, the transmitting device 3 returns to the original normal mode. The setting modes M1 to M4
When the button is not operated for a certain period of time after being set to, the transmitting device 3 returns to the normal mode after a certain period of time. Also,
It is possible to set no time in the setting modes M1 to M4. For example, FIG. 3 shows the setting mode M1 at 7:45.
Minutes to 8:15 in the setting mode M2 12
Set the time zone from 13:00 to 13:00 in setting mode M3 at 17:00
The time zone from 0 minute to 17:45 is set, and the setting mode M4 is not used.

FIG. 2 is a block diagram showing a circuit embodying the transmitting device 3 described above. 10 is a processing circuit configured by a microcomputer (CPU), 11 is a clock,
Reference numeral 12 is a display circuit (liquid crystal driver) for driving the display unit (liquid crystal panel) 7 to display time and the like. Also,
Reference numeral 13 is a setting mode storage unit (RAM), and 14 is an identification code storage unit (E ² PROM), which is composed of a semiconductor memory. Reference numeral 15 is a high frequency transmission module for transmitting a signal on a high frequency from the antenna 16. Reference numeral 17 denotes a button-type battery built in the transmitter 3.

When the mode switching button 6 is pressed, a mode switching signal is output from the switch input circuit 18 to the processing circuit 10, and the processing circuit 10 sequentially goes to the normal mode, the setting mode M1, the setting mode M2, the setting mode M3, and the setting mode M4. Can be switched. When the lock button 4 or the unlock button 5 is operated in the setting modes M1 to M4, signals are output from the switch input circuits 19 and 20 to the processing circuit 10 and the display time is sent, and the display time is set in accordance with the set time. When the switch button 6 is pressed, the set time zone (start time, end time) in the setting mode is stored in the setting mode storage unit 13. FIG. 3 is also a diagram illustrating a setting state in the setting mode storage unit 13.

When the lock button 4 or the unlock button 5 is operated in the normal mode, the switch input circuits 19 and 20 are operated.
A signal for transmission is output from the processing circuit 10 to the processing circuit 10. When the lock button 4 is pressed, the processing circuit 10 reads the identification code from the identification code storage unit 14, and the radio wave carrying the identification code and the lock code is transmitted from the antenna 16 by the high frequency transmission module 15. Unlock button 5
When is pressed, the processing circuit 10 reads the identification code from the identification code storage unit 14, and the radio wave carrying the identification code and the unlock code is transmitted from the antenna 16 by the high frequency transmission module 15.

In the normal mode, the processing circuit 1
0 is the time signal (clock time) input from the clock 11.
And the start time and end time of each of the setting modes M1 to M4 set in the setting mode storage unit 13, and when the clock time reaches the start time of any of the setting modes M1 to M4, the identification code storage unit 14 Read the identification code from
The identification code and the lock code are transmitted from the antenna continuously or intermittently (regularly or randomly). Further, the processing circuit 10 uses the clock time and setting mode M1.
~ Compare with the end time of M4, the clock time is set mode M
At the end times of 1 to M4, the transmission of the radio wave is stopped and the rest state (the halt state; the state in which only the part that compares the time with the clock 11 is moving) is entered. Specifically, it is as shown in the operation flow chart of FIG.

Referring to FIG. 4, the processing circuit 10 will be described.
Is normally in a resting state unless the lock button 4 or the unlock button 5 is operated (S21), and only determines whether the clock time is within the time zone of any of the setting modes M1 to M4. (S22-S25). When the clock time enters any one of the setting modes M1 to M4, the processing circuit 10 enters the operating state (S26), and the radio wave including the identification code and the unlock code is emitted from the antenna 16 (S27). When the radio wave is emitted, the processing circuit 10 returns to the sleep state (S2
8) When the intermittent stop time (for example, 2 seconds) has elapsed after the electric wave is emitted (S29), the operation state is resumed and the electric wave is emitted (S26). Setting mode M1 with any clock time
While in the time zone of M4, the electric wave is intermittently transmitted in this manner, but when the clock time comes out of the time zone of the setting modes M1 to M4, any one of the setting modes M1 to M4 is again performed.
It remains dormant until it enters the time zone of 4.

The transmitter 3 does not constantly transmit the radio wave in the automatic transmission mode, but only in the set time zone. However, even in this case, the convenience of the keyless system is almost always achieved. Does not hurt. This is because the time of day when the passengers frequently board is usually determined by the lifestyle habits of the user. For example, office workers and students often go to work, go to school, or go home, and housewives often go out to shop for dinner in the evenings. In many cases, it is efficient to make the automatic transmission mode work during such a time period.

Therefore, instead of continuously transmitting the radio wave, the radio wave in the automatic transmission mode is transmitted only within the time zone set in the setting modes M1 to M4, and the rest state is in the rest state. Therefore, according to the transmitting device 3, the battery consumption is small, and the small battery 17 such as the button battery built in the transmitting device 3 can last a long time. Further, even when the electric wave is transmitted in the automatic transmission mode, if the electric wave is intermittently transmitted without continuous transmission, the consumption of the battery 17 can be further reduced.

The life of the battery 17 when the set time zone is set and the battery is operated is calculated. For example, considering the case where the setting mode M1 is set to 1 hour in the morning and the setting mode M2 is set to 1 hour in the evening, only 2 hours of operation are performed for 24 hours a day, so that the transmission is continuously performed for 24 hours. Compared with the case, the battery consumption is 1/12 and the battery life is 1
2 times (12 times or more due to voltage recovery while transmission is stopped).

FIG. 5 is a block diagram showing the configuration of the receiver 8 of the keyless system mounted on the vehicle. The receiving device 8 includes a processing circuit 30 including a microcomputer (CPU), a receiving antenna 31 that receives the radio wave transmitted by the transmitting device 3, and a radio wave received by the receiving antenna 31 to demodulate the identification code and the locking code / unlocking code. A high frequency receiving module 32 for extracting a lock code, and an identification code storage section (E ² PROM) 33 for storing a unique identification code.
And a door lock device (door lock control unit) 9
And an output circuit 34 for outputting a locking signal or an unlocking signal to lock or unlock the door lock device 9. Further, the prohibition switch 35 connected to the processing circuit 30 via the switch input circuit 36 is provided inside the vehicle compartment, and when the prohibition switch 35 is turned on, the unlocking of the door lock is forcibly prohibited.

FIG. 6 is a flow chart for explaining the operation of the receiving device 8 mounted on the vehicle in response to the automatic transmission mode from the transmitting device 3. The receiving device 8 is normally in a waiting state (S37), and when the radio wave from the transmitting device 3 is received by the receiving antenna 31, the identification code demodulated by the high frequency receiving module 32 is stored in the identification code storage unit 33. If the identification code matches (S39), the output circuit 34 outputs an unlocking signal to the door lock device 9 (S4).
0), unlock the door. If the identification codes do not match, of course, the door is not unlocked and the state returns to the waiting state (S37). In addition, when a certain time elapses after the receiving device 8 does not receive the radio wave from the transmitting device 3,
It is preferable that the output circuit 34 outputs a lock signal to the door lock device 9 to lock the door.

FIG. 7 is a block diagram showing the configuration of a (portable) transmitter 41 according to another embodiment of the present invention, and FIG. 8 is an operation flow chart thereof. This transmitter 3 has a vibration sensor 42.
The vibration sensor 42 transmits a vibration detection signal to the processing circuit 10. The processing circuit 10 is normally in a resting state (S43), but when the vibration sensor 42 detects a vibration having a strength higher than a predetermined value (S44), the processing circuit 10 becomes an operating state (S45) and the high frequency transmitting module 15 causes the antenna 1 to operate.
An electric wave including the identification code and the unlock code is transmitted from 6 (S46), and the electric wave is intermittently transmitted while the vibration having the intensity higher than the predetermined value is detected (S47 to S48).

When the wearer of the transmitter 41 approaches the vehicle, the vibration sensor 42 detects the vibration of the body accompanying the walk of the wearer, and when the vibration sensor 42 senses the vibration having the intensity higher than the predetermined value, The transmitter 41 transmits a radio wave including the unlock code. When receiving the radio wave, the receiving device 8 outputs an unlock signal to the door lock device 9 to unlock the door lock.

However, in the transmitting device 41,
For example, if the transmitting device 41 and the key 1 of the vehicle are integrated, or if the transmitting device 41 and the key 1 of the vehicle are put together by a key chain, the vehicle is not used and the transmitting device 41 is not used.
Is placed with the key 1, the transmitter 41
However, when a driver carrying the transmitter 41 together with the key 1 to get on the vehicle approaches the vehicle to get on the vehicle, the transmitter 41 automatically emits a radio wave including an unlock code due to vibration at that time.

In this transmitting device 41, the transmitting device 4
Since the radio wave is not emitted when the vehicle 1 is stationary and the radio wave is emitted when the vehicle approaches the vehicle to drive the vehicle, it is possible to reduce the consumption of the battery 17 and prolong the battery life. it can.

FIG. 9 is a block diagram showing the configuration of a (portable) transmitter 49 according to still another embodiment of the present invention, FIG.
Is a schematic diagram showing a mounting state of the transmitter 49, and FIG. 11 is an operation flow chart thereof. This transmitter 49 is shown in FIG.
As shown in, a transmitter main body 50 and a pressure sensor 51 are provided, and the pressure sensor 51 is placed inside the shoe 52,
It is built into the insole. When the transmitter main body 50 and the pressure sensor 51 are connected by the cord 53, the transmitter main body 50 may be attached to the ankle 55 or the like with a belt 54, for example, as shown in FIG. Alternatively, if the detection signal can be wirelessly transmitted from the pressure sensor 51 to the transmitter main body 50, the transmitter main body 50 need only be carried in the pants or jacket pocket. The pressure sensor 51 and the transmitter main body 50 are separated from each other in order to prevent the transmitter main body 50 from being stepped on and damaged.

As shown in FIG. 11, the processing circuit 10 is normally in a resting state (S56), but when the pressure sensor 51 detects a pressure having a strength higher than the specified value (S57), the processing circuit 10 is put into an operating state (S57). S58) The radio frequency signal including the identification code and the unlock code is transmitted from the antenna 16 by the high frequency transmission module 15 (S59), and the radio wave is intermittently transmitted while the pressure more than the specified pressure is detected (S60 to S61). .

When the wearer of the transmitter 43 takes off the shoes 52 and goes up to the room or the like, no force is applied to the pressure sensor 51, so that no radio wave is transmitted from the transmitter body 50, but the wearer When the person wears the shoes 52 and approaches the vehicle, the pressure sensor 51 is stepped on as the wearer walks, and when the pressure sensor 51 receives a pressure higher than the predetermined value, the transmitter 49 transmits a radio wave including an identification code and an unlock code. To send. When receiving the radio wave, the receiving device 8 outputs an unlock signal to the door lock device 9 to unlock the door lock.

Therefore, even in the transmitting device 49,
If the driver should not take off the shoes 52 and drive like in the case of sitting on a parlor, when the driver carrying the transmitter 49 to get on the vehicle approaches the vehicle without transmitting radio waves, The pressure sensor 51 is stepped on to automatically emit a radio wave including an unlock code and the like. Therefore, the consumption of the battery 17 can be reduced and the battery life can be extended.

In the embodiment described above, automatic transmission is performed only during a set time period, automatic transmission is performed when a large vibration is applied to the transmitting device, and automatic transmission is performed when a pressure exceeding a specified value is applied to the pressure sensor. However, these methods can be used in combination with each other, and a higher effect can be obtained.

For example, 2 of operation time zone setting and vibration detection
Consider a case in which two functions are combined and the electric wave is automatically transmitted when the vibration sensor detects a vibration having a strength higher than a predetermined value during a set operation time period. The time zone is set to 1 hour in the morning and 1 hour in the afternoon according to the time to go to work or leave the office.
Suppose you have a habit of using a rolling stock. In that case, the time to walk to the vehicle is less than 5 minutes at a time, so 10 minutes of 24 hours a day (assuming that it is outside the set time when leaving the vehicle) Joins the transmitter, and the transmitter automatically transmits. Therefore, compared with the case where automatic transmission is performed 24 hours a day, the transmission time becomes (10 ÷ 60) ÷ 24 = 1/144 times. That is, when the two functions of the operation time zone setting and the vibration detection are combined, the battery life is 144 times longer than that in the case of transmitting for 24 hours.

Further, as a battery, a button type lithium battery CR
In the example using 2032, the battery life is calculated as follows. When the transmitter is automatically transmitting radio waves (operating state), the intermittent time of transmission is set to 1 second, and 1
Assuming that radio waves are transmitted once per second for 0.5 seconds, the (average) current consumption when the transmitter is in operation is 10 m.
A, the current consumption when the transmitter is not in operation and in the rest state is 1 μA, and the battery capacity of the CR2032 is 200 mAh.

As in the previous case, the transmitter is a combination of the two functions of operating time zone setting and vibration detection. The time zone is set to 1 hour in the morning and 1 hour in the afternoon. Suppose you want to use a vehicle. It is assumed that each time the carrier of the transmitter walks to the vehicle is 5 minutes, and the operating time of the transmitter per day is 10 minutes. The daily consumption of the battery in such a transmitting device is 10 mA × 10 min / 1 day = 1.667 mAh / day in the operating state and 1 μA × 24 h / 1 day = 0.024 mAh / day in the resting state (in the operating state (Ignored time), and the total is 1.667 mAh / day + 0.024 mAh / day ≈ 1.69
It will be mAh / day. Therefore, if the battery capacity is 200 mAh, the battery life is 200 ÷ 1.69≅118 (days), and battery replacement is unnecessary for 118 days (about 4 months).

On the other hand, when the radio wave is emitted for 24 hours, 200 mAh / 10 mA = 20 h, and the battery life is 20 hours. Therefore, it is necessary to replace the battery every day.

[Brief description of drawings]

FIG. 1 is a front view showing a key provided with a (portable) transmission device according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration of a transmitting device of the above.

FIG. 3 is a diagram illustrating a time setting state in each setting mode of the transmitting device of the above.

FIG. 4 is an operation flow diagram of the transmitting device of the above.

FIG. 5 is a block diagram showing a configuration of a receiving device mounted on a vehicle.

FIG. 6 is a flowchart showing the operation of the above receiving device.

FIG. 7 is a block diagram showing a configuration of a (portable) transmission device according to another embodiment of the present invention.

FIG. 8 is a flowchart showing an operation of the transmitting device of the above.

FIG. 9 (mobile) in yet another embodiment of the present invention.
It is a block diagram which shows the structure of a transmitter.

FIG. 10 is a diagram showing a state in which the transmitter described above is attached to an ankle.

FIG. 11 is a flowchart showing an operation of the transmitting device of the above.

FIG. 12 is a block diagram showing a configuration of a conventional portable transmission device.

[Explanation of symbols]

 3 (Mobile) Transmitter 4 Lock Button 5 Unlock Button 6 Mode Switch Button 8 Receiver 9 Door Lock Device 10 Processor 11 Clock 13 Setting Mode Memory 14 Identification Code Memory 17 Battery 42 Vibration Sensor 51 Pressure Sensor

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification number Reference number within the agency FI Technical display location G04G 15/00 G04G 15/00 P H04Q 9/00 301 H04Q 9/00 301B 311 311P

Claims (9)

[Claims] 1. A portable transmitter for use in a system for controlling a door lock by receiving a predetermined radio wave, and emitting a radio wave for unlocking the door lock, wherein the portable transmitter continuously or intermittently has a predetermined time period. In addition, a portable transmission device is characterized in that it automatically emits a radio wave for unlocking the door lock. 2. The portable transmission device according to claim 1, further comprising a switch unit operated by a person to emit the radio wave, and the radio wave is operated by operating the switch unit even during a period other than the predetermined time period. A portable transmitting device, characterized in that it fires. 3. The portable transmission device according to claim 1, further comprising setting means for setting the predetermined time zone. 4. A portable transmitter that is used in a system for controlling a door lock by receiving a predetermined radio wave and emits a radio wave for unlocking the door lock. Equipped with motion detection means for detecting motion, and based on the output of the motion detection means, automatically emits a radio wave for unlocking the door lock continuously or intermittently when the wearer is moving. A portable transmission device characterized by: 5. The portable transmission device according to claim 4, further comprising a switch unit operated by a person to emit the radio wave, and the switch unit is operated even when the wearer is not operating. A portable transmission device characterized by emitting the radio wave. 6. The portable transmission device according to claim 4, wherein the motion detection unit includes a vibration detection sensor that detects vibration, and detects the vibration of the portable transmission device to detect the motion of the wearer. A portable transmission device characterized by the above. 7. The portable transmission device according to claim 4, wherein the operation detecting unit includes a pressure detection sensor for detecting pressure, and detects the pressure of the portable transmission device to detect the operation of the wearer. A portable transmission device characterized by the above. 8. The portable transmission device according to claim 1,
A keyless system comprising: a receiving device that receives radio waves from the portable transmitting device; and a door lock device that is controlled according to an output from the receiving device. 9. The keyless system according to claim 8, wherein the receiving device is provided in a vehicle, and the door locking device locks and unlocks a vehicle door.