JP4549399B2 - Door keyless opening and closing system - Google Patents

Description

The present invention relates to a door keyless opening / closing system, and more particularly to a door keyless opening / closing system capable of remotely locking / unlocking a door lock of a vehicle or a house.

A keyless opening / closing system for doors that enables remote control of locking / unlocking of door locks of vehicles and houses, etc., using a transmitter, and eliminates the hassle of door opening and closing work by conventional key operations Has been put to practical use.
The system includes a portable transmitter and a receiver provided on the vehicle (or house) side,
The transmitter is often formed with two switches, a lock switch and an unlock switch, and when the lock switch is pressed, an instruction to instruct the lock of the door lock from the transmitter When a weak radio wave of the cord is transmitted and the receiver receives the radio wave, a door lock opening / closing mechanism is driven to lock (lock) the door lock of the vehicle, and when the unlocking switch is pressed, the door lock An opening / closing mechanism is driven to unlock (release) the door lock. As long as the transmitter switch is not pressed again, the previous state is maintained.

In such a system, the door lock is locked not only when the switch is pushed by the intention of the user carrying the transmitter, but also when the switch is pushed unconsciously,
It is unlocked. For this reason, when the user puts the transmitter in the pocket or the like, the switch is unintentionally pressed, and the door lock remains unlocked against the user's will. There is.

In such a case, the user may not be aware of it and may assume that the door lock is still in a locked state and leave the vehicle. In such a case, the door lock may be left unlocked. Thus, there is a risk of vehicle theft, which is a security problem.

Therefore, in order to solve the above-mentioned problem, it is detected whether or not the door is opened within a predetermined time (for example, 30 seconds) after the transmitter unlock signal is transmitted from the transmitter, and the predetermined time When the door is not opened within, it is determined that the door lock is unlocked against the will of the user, and the door lock is automatically locked, so-called auto-relock function A keyless opening / closing system for doors having a door has been proposed (see Patent Document 1 below).

However, in the above system, when the unlock signal of the door lock is transmitted from the transmitter, regardless of the locked state of the door lock so far, that is, the door lock has been locked / unlocked until then. Even when the door is not opened within the predetermined time (30 seconds), there is a problem as shown below because the door is automatically relocked.

When the door lock is unlocked, the door lock unlock signal is transmitted from the transmitter in most cases due to an erroneous operation by the user. For example, when the user leaves the vehicle, in order to use the transmitter to switch the door lock from the unlocked state to the locked state, the transmitter is intended to transmit a lock signal, and the unlock signal is erroneously set. The case where it has transmitted is mentioned.

At this time, the user should be aware of his own error and retransmit the lock signal from the transmitter, but if not noticed, until the user is automatically relocked (that is, 30 seconds after the unlock signal is transmitted). Until the time has elapsed), the door lock remains unlocked against the user's will.

Such a misunderstanding situation occurs when the user moves away from the vehicle as described above. Therefore, in such a case, the state where the user remains unlocked for 30 seconds is security. It becomes a big problem.
Therefore, in the above case, it is preferable that the waiting time, that is, the predetermined time is shorter as long as no other inconvenience occurs (for example, within 10 seconds).

On the other hand, when the door lock is in the locked state, the unlock signal of the door lock is transmitted from the transmitter based on the intention of the user to get into the vehicle or the user's intention. The probability of being the former is overwhelmingly higher than the latter, either due to an unintentional misoperation.

For this reason, it is not desirable to set the time from when the unlock signal is transmitted (that is, after the door lock is switched from the locked state to the unlocked state) until the auto-relock is set to be too short. If it is too short (for example, set to 10 seconds), when it is attempted to open the door of the vehicle, there are many cases where the vehicle is already auto-relocked, which is very inconvenient for the user. .
Therefore, in the above case, it is preferable to set the predetermined time to about 30 seconds as usual.
JP-A-62-253884

Means for solving the problems and their effects

The present invention has been made in view of the above problems, and even when the door lock is unlocked against the intention of the user, it is possible to perform appropriate processing according to the situation, and security. An object of the present invention is to provide a door keyless opening and closing system capable of improving the performance.

To achieve the above object, a door keyless opening / closing system (1) according to the present invention includes a portable transmitter for transmitting a signal of an instruction code for instructing locking / unlocking of a door lock, and a received instruction code. And a receiver having a lock control means for outputting a control signal for locking / unlocking the door lock, and a door lock opening / closing mechanism for locking / unlocking the door lock in response to the control signal. In a door keyless opening and closing system, a lock state detecting means for detecting locking / unlocking of the door lock, an alarm means for issuing an alarm, and the receiver is unlocked when the door lock is in the unlocked state. wherein when receiving a signal indicating the unlocking for the door lock, the receiver instructs the unlocking for the door lock in the locked state in Is characterized by comprising a warning generation control means for controlling said alarm means to emit a different alarm and when subjected to a degree.

According to the keyless opening / closing system (1) of the door, when the door lock is in the unlocked state, it is misunderstood by the user to receive a signal instructing unlocking the door lock in the unlocked state. In most cases, the user moves away from the vehicle or the like. By issuing the warning, the user can be made aware of the erroneous operation, and the security can be improved.

The door keyless opening / closing system (2) according to the present invention is characterized in that, in the door keyless opening / closing system (1), the alarm means is configured on the receiver side and / or the transmitter side.
According to the keyless opening and closing system (2) for the door, to make the user notice the wrong operation,
A more suitable system can be realized.

The door keyless opening / closing system (3) according to the present invention is the door keyless opening / closing system (1) or (2), wherein the receiver is unlocked when the door lock is unlocked. when receiving a signal indicating the unlocking relative to the door lock in the transmitting means for transmitting a signal of instruction code that instructs to emit said alarm issues the alarm receiving said signal, said transmission And alarm means arranged on the machine side.
According to the door keyless closing systems (3), since issuing the alarm from the transmitter itself, it is possible to surely notice the erroneous operation by the user. The issues how the alarm from the transmitter, a display lamp or the buzzer sounds, and other voice guidance and the like.

Further, the door keyless opening / closing system (4) according to the present invention is the door keyless opening / closing system (1) to (3), in which the receiver is configured to be in the locked state when the door lock is in a locked state. When receiving a signal for instructing to unlock the door lock, the alarm means is provided with an alarm non-occurrence control means for controlling so as not to issue an alarm.

According to the door keyless opening and closing system (4), when the door lock is in the locked state, the signal for instructing the unlocking of the door lock is received in the “Problem to be Solved by the Invention” section. As explained in, it is mostly based on the intention of the user to get into the vehicle, etc., and if it issues an alarm at that time, it is rather confusing and there is a risk of annoying the surroundings, so it is limited to issuing an alarm By adding, it is possible to realize a system that can improve security while minimizing inconvenience to the surroundings.

The door keyless opening / closing system (5) according to the present invention is the door keyless opening / closing system (1) to (4), wherein the door keyless opening / closing system is used for a vehicle, and the alarm means is provided. Is configured to include any of a horn, a light, and an indoor lamp installed in the vehicle.

According to the door keyless opening / closing system (5), since the alarm means includes a device equipped on the vehicle, for example, a horn, a light, an indoor lamp, etc., the device for configuring the alarm means Since it is not necessary to add a new device, it is possible to avoid the problem of the arrangement space and to suppress an increase in cost.

Embodiments of a keyless opening / closing system for a door according to the present invention will be described below with reference to the drawings.
FIG. 1 is a block diagram schematically showing a main part of a keyless opening / closing system for a door according to an embodiment (1). However, the case where the system is used for a two-door type vehicle will be described here.

In the figure, reference numeral 1 denotes a transmitter. The transmitter 1 includes a lock switch 2, an unlock switch 3, a memory 4, a microcomputer 5, a transmission circuit 6, and a transmission antenna 7. It is configured.
The microcomputer 5 transmits the weak radio wave of the ID code unique to the transmitter 1 fetched from the memory 4 and the instruction code corresponding to the operation instruction from the lock switch 2 or the unlock switch 3 via the transmission circuit 6. Transmission is controlled from the antenna 7 to the receiver 8.

The receiver 8 includes a receiving antenna 9, a receiving circuit 10, a driver seat (Driver seat), a passenger seat (Pa
ssenger seat) door open / close detection switches 11 and 12 for detecting the opening / closing of the door, and lock state detection switches 13 and 14 for detecting the lock / unlock state of the door locks of the driver's seat and passenger seat,
A memory 15, a microcomputer 16, door lock opening / closing mechanisms 17 and 18 for a driver seat and a passenger seat, and a horn mechanism 19 are included.

The microcomputer 16 receives the radio wave received by the receiving antenna 9 through the receiving circuit 10 and receives the received ID code (specific to the transmitter 1) and the vehicle-specific I taken from the memory 15.
It is determined whether the D code matches, and if it matches, the instruction code transmitted from the transmitter 1 and
Based on the information from the lock state detection switches 13 and 14 and the door opening / closing detection switches 11 and 12, a control signal is output to the door lock opening / closing mechanisms 17 and 18 and the horn mechanism 19 of the driver seat and the passenger seat. Has been.

The operation of the microcomputer 16 in the door keyless opening / closing system according to the embodiment (1) will be described based on the flowchart shown in FIG.
First, in step 1, as an initialization process, the memory and timer t built in the microcomputer 16 are cleared, and the process proceeds to step 2.

In step 2, when there is a received radio wave, the code (the ID code and the instruction code transmitted from the transmitter 1) is fetched, and it is determined whether or not it matches the ID code stored in the memory 15. If the ID codes match (if yes), go to step 3, while
If the ID codes do not match (in the case of NO), the process returns to step 2.

In step 3, it is determined whether or not the fetched instruction code is an instruction to lock the door lock. If lock is instructed (in the case of YES), the process moves to step 4, while
If the lock is not instructed (in the case of NO), the process proceeds to Step 7.

In step 4, the information from the door open / close detection switches 11 and 12 is fetched and all the doors (
It is determined whether the doors of the driver's seat and passenger's seat are closed. If all doors are closed (YE
In the case of S), the process proceeds to Step 5, and a control signal for locking the door lock is output to the door lock opening / closing mechanisms 17 and 18 of the driver's seat and the passenger seat (corresponding to the processing of the lock control means), and Step 2
Return to. On the other hand, if at least one door is open (in the case of NO), the process proceeds to step 6, a control signal for sounding the horn is output to the horn mechanism 19, and the process returns to step 2. This is to inform the user that one of the doors is open by ringing the horn.

In step 7, it is determined whether or not the fetched operation code is an instruction to unlock the door lock. If unlocking is instructed (in the case of YES), the process proceeds to step 8. On the other hand, if unlocking is not instructed (in the case of NO), the process returns to step 2.

In step 8, the information from the lock state detection switches 13 and 14 is taken in, and it is determined whether or not the door lock is in the locked state. If the door lock is in the locked state (in the case of YES), the process proceeds to step 9, the predetermined time T is set to 30 seconds, and the process proceeds to step 12. On the other hand, if the door lock is in the unlocked state (in the case of NO), the process proceeds to step 10, the predetermined time T is set to 10 seconds, the process proceeds to step 11, and a control signal for sounding the horn is sent to the horn mechanism 19. Output (corresponding to the processing of the alarm generation control means), and go to step 12.

In step 12, a control signal for unlocking the door lock is output to the door lock opening / closing mechanisms 17 and 18 of the driver's seat and the passenger seat (corresponding to the processing of the lock control means), and the process proceeds to step 13.
Start timer t and go to step 14.

In step 14, information from the door open / close detection switches 11 and 12 is taken in, and it is determined whether or not any door has been opened. In the case of YES, it is determined that the door is unlocked with the intention of the owner (user) of the transmitter 1, and the process returns to Step 2. On the other hand, in the case of NO, the process proceeds to Step 15 and the timer t is set. It is determined whether or not a predetermined time T (30 seconds or 10 seconds) has elapsed.

If the timer t has passed the predetermined time T (in the case of YES), it is determined that an unlock signal has been transmitted from the transmitter 1 against the user's intention, and the routine proceeds to step 16 where the door lock is A control signal for locking is outputted to the door lock opening / closing mechanisms 17 and 18 of the driver's seat and the passenger's seat, and the process returns to Step 2. On the other hand, if the timer t has not passed the predetermined time T (in the case of NO),
Return to step 14.

According to the keyless opening / closing system of the door according to the above embodiment (1), when the door lock is in the unlocked state, a signal instructing unlocking transmitted from the transmitter 1 is received by the receiver 8.
If the door of either the driver seat or the passenger seat is not opened within 10 seconds (set in step 10), use as described in the section “Problems to be solved by the invention” It is determined that the door lock is in an unlocked state due to an erroneous operation due to a misunderstanding of the user (the intention is that the lock switch 2 was pushed but the unlock switch 3 was accidentally pushed), and the door lock is automatically Locked. Therefore, when the above system is adopted for a vehicle door, it is possible to improve security such as prevention of vehicle theft.

Further, when the door lock is in the locked state, the receiver 8 receives a signal instructing unlocking transmitted from the transmitter 1, and then the door is opened within 30 seconds (set in step 9). Otherwise, as described in the section of “Prior Art”, it is determined that the door lock is unlocked against the will of the user, and the door lock is automatically locked.

In addition, when the door lock is in the locked state, the receiver 8 receives the unlocking signal transmitted from the transmitter 1 as described in the section “Problems to be Solved by the Invention”. In addition, since it is mostly based on the intention of the user to get into the vehicle or the like, it is not desirable to set the predetermined time T too short, and about 30 seconds is preferable from the balance between convenience and security.

On the other hand, when the door lock is in the unlocked state, the receiver 8 receives a signal instructing the unlocking transmitted from the transmitter 1 in the section “Problems to be solved by the invention”. As described above, since it is an erroneous operation due to misunderstanding of the user and the user is moving away from the vehicle or the like in most cases, the predetermined time T is preferably shorter as long as no other inconvenience occurs (for example, 10 Within seconds).
Therefore, by setting the former predetermined time longer than the latter predetermined time, it is possible to realize a system that is extremely balanced in terms of convenience and security.

Further, as described above, when the door lock is in the unlocked state, the signal for instructing the unlocking of the door lock is an erroneous operation due to a user's misunderstanding, and the user is In most cases, the user moves away, so that the user can be made aware of an erroneous operation by raising the horn to the user, and the security can be improved.

Further, when the door lock is in the locked state, the signal for instructing the unlocking of the door lock is mostly based on the intention of the user to get into the vehicle or the like as described above. In such a case, there is a risk that it will be annoying to the surroundings if the horn is emitted at that time. In such a case, by adding a restriction (equivalent to processing of the alarm non-occurrence control means) It is possible to realize a system that can improve security while minimizing inconvenience to the user.

FIG. 3 is a block diagram schematically showing a main part of the keyless opening / closing system for a door according to the embodiment (2). However, the case where the system is used for a two-door type vehicle will be described here.
In the figure, reference numeral 21 denotes a transmitter. The transmitter 21 is a lock switch 2, an unlock switch 3, a memory 4, a microcomputer 5, a transmission / reception circuit 22, a transmission / reception antenna 23, and a buzzer mechanism. 24.

The microcomputer 5 transmits / receives a weak radio wave of the ID code unique to the transmitter 21 fetched from the memory 4 and the instruction code corresponding to the operation instruction from the lock switch 2 or the unlock switch 3 via the transmission / reception circuit 22. The microcomputer 5 is configured to control transmission from the antenna 23 to the receiver 25, and the microcomputer 5 is configured to output a control signal to the buzzer mechanism 24 when receiving an alarm code from the transmission / reception antenna 23 via the transmission / reception circuit 22. Has been.

The receiver 25 includes a transmission / reception antenna 26, a transmission / reception circuit 27, door opening / closing detection switches 11 and 12 for detecting opening and closing of the doors of the driver seat and the passenger seat, and a lock / unlock state of the doors of the driver seat and the passenger seat. Lock state detection switches 13 and 14, a memory 15, a microcomputer 16, door lock opening / closing mechanisms 17 and 18 for a driver seat and a passenger seat, and a horn mechanism 19.

The microcomputer 16 receives the radio wave received by the transmitting / receiving antenna 26 via the transmitting / receiving circuit 27, and the received ID code (specific to the transmitter 21) matches the vehicle-specific ID code fetched from the memory 15. If they match, based on the instruction code transmitted from the transmitter 21 and the information from the lock state detection switches 13 and 14 and the door open / close detection switches 11 and 12, the driver seat and the passenger seat The microcomputer 16 is configured to output a control signal to the door lock opening / closing mechanisms 17 and 18 and the horn mechanism 19, and the microcomputer 16 is configured to transmit an alarm code from the transmission / reception antenna 26 via the transmission / reception circuit 27. .

FIG. 4 shows the operation of the microcomputer 5 in the door keyless opening / closing system according to the embodiment (2).
It demonstrates based on the flowchart shown in FIG.
First, in step 21, as an initialization process, the memory or the like built in the microcomputer 5 is cleared, and the process proceeds to step 22.

In step 22, it is determined whether or not the lock switch 2 is turned on. If the lock switch 2 is turned on (in the case of YES), the process proceeds to step 24, and the instruction code (assumed to be composed of 2 bits) is set to [10], and the process proceeds to step 27. On the other hand, if the lock switch 2 is not turned on (in the case of NO), the process proceeds to step 23.

In step 23, it is determined whether or not the unlock switch 3 is turned on. If the unlocking switch 3 is turned on (in the case of YES), the process proceeds to step 25, the instruction code is set to [01], and the process proceeds to step 27. On the other hand, if the unlock switch 3 is not turned on (in the case of NO), the process proceeds to step 26, the instruction code is set to [00], steps 27 and 28 are skipped, and the process proceeds to step 29.

In step 27, the ID code unique to the transmitter 21 stored in the memory 4 is fetched, the process proceeds to step 28, the ID code and the instruction code are transmitted, and the process proceeds to step 29.

In step 29, it is determined whether or not the alarm code transmitted from the receiver 25 (see FIG. 5 for when the alarm code is transmitted) is received. If an alarm code has been received (in the case of YES), the process proceeds to step 30, a control signal for sounding the buzzer is output to the buzzer mechanism 24, and the process returns to step 22. On the other hand, if the alarm code has not been received (in the case of NO), the process returns to step 22 as it is.

Next, the operation of the microcomputer 16 in the door keyless opening / closing system according to the embodiment (2) will be described based on the flowchart shown in FIG. However, the description of the operation similar to that of the microcomputer 16 in the keyless opening / closing system of the door shown in FIG. 2 is omitted here.

The only difference between FIG. 5 and FIG. 2 is that step 11A is inserted between step 11 and step 12, and step 11A is performed when the door lock is unlocked (step 3, 4 is an operation for transmitting an alarm code to the transmitter 21 when receiving an instruction to unlock the door lock (in the case of NO in Step 8).

According to the keyless opening / closing system of the door according to the embodiment (2), the embodiment (1)
As well as having the same effect as the door keyless opening / closing system according to the above, the transmitter 21 itself issues an alarm, so that the user can be surely aware of the erroneous operation. Transmitter 21
Examples of how to issue an alarm from the other include a display lamp and voice guidance.

It is the block diagram which showed roughly the principal part of the keyless opening / closing system of the door which concerns on embodiment (1) of this invention. It is the flowchart which showed the operation | movement of the microcomputer of the receiver side in the keyless opening / closing system of the door which concerns on embodiment (1). It is the block diagram which showed roughly the principal part of the keyless opening / closing system of the door which concerns on embodiment (2). It is the flowchart which showed the operation | movement of the microcomputer of the transmitter side in the keyless opening / closing system of the door which concerns on embodiment (2). It is the flowchart which showed the operation | movement of the microcomputer of the receiver side in the keyless opening / closing system of the door which concerns on embodiment (2).

Explanation of symbols

4, 15 Memory 5, 16 Microcomputer 6 Transmission circuit 7 Transmission antenna 9 Reception antenna 10 Reception circuit 19 Horn mechanism 22, 27 Transmission / reception circuit 23, 26 Transmission / reception antenna 24 Buzzer mechanism

Claims (5)

A portable transmitter for transmitting an instruction code signal for instructing locking / unlocking of the door lock;
A receiver having lock control means for outputting a control signal for locking / unlocking the door lock according to the received instruction code;
In a door keyless opening and closing system comprising a door lock opening and closing mechanism for receiving the control signal to lock / unlock the door lock,
Lock state detecting means for detecting locking / unlocking of the door lock;
An alarm means for issuing an alarm;
When the door lock is in the unlocked state, when the receiver receives a signal instructing the unlocking of the door lock in the unlocked state, the receiver locks the door lock in the locked state. A door keyless opening and closing system , comprising: an alarm generation control means for controlling the alarm means so as to issue an alarm different from that when receiving an unlocking signal .   2. The door keyless opening / closing system according to claim 1, wherein the alarm means is configured on a receiver side and / or a transmitter side. When the door lock is in the unlocked state, when the receiver receives a signal indicating the unlocking relative to the door lock in the unlocked state, the signal of the instruction code that instructs to emit said alarm Transmitting means for transmitting
Issuing the alarm receiving said signals, according to claim 1 or claim 2 door keyless closing system according to characterized in that it comprises an alarm means wherein disposed on the transmitter side.   When the door lock is in a locked state, when the receiver receives a signal for instructing the unlocking of the door lock, an alarm non-occurrence control means for controlling the alarm means not to issue an alarm is provided. The door keyless opening and closing system according to claim 1, wherein the door keyless opening and closing system is provided.   The keyless opening / closing system of the door is used for a vehicle, and the alarm means is configured to include any of a horn, a light, and an indoor lamp mounted on the vehicle. 5. A keyless opening / closing system for a door according to any one of items 4 to 4.

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