JP2002227480A - System and method for locking/unlocking - Google Patents

Abstract

PROBLEM TO BE SOLVED: To shorten time for communication between a key device and a lock device during unlocking. SOLUTION: A system for locking/unlocking is provided with the key device and the lock device 1. The key device has a first radio transmission/reception part, a storage part, wherein key number information, key ID information and a broad ID are stored, and a key-side CPU which exercises control so as to transmit the key number information and the key ID information according to a request from the lock device 1. The lock device 1 has second radio transmission/reception parts 8 and 16, a second storage part 25, wherein the key number information, the key ID information and the broad ID are stored, and a second lock-side CPU 26 which makes an information transmission request including the broad ID transmitted to the key device in response to a locking request or an unlocking one and recognizes the key number information and the key ID information, included in a response signal from the key device, in order to control the locking/unlocking parts 21 and 22 for the purpose of the locking or the unlocking.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system for locking or unlocking a lock device and a key device by wireless communication, and more particularly to a locking / unlocking device for shortening the time for locking or unlocking. The present invention relates to a system and a locking / unlocking method.

[0002]

2. Description of the Related Art A portable key device for transmitting its own ID,
2. Description of the Related Art Residential locking / unlocking systems that include a lock device that receives an ID transmitted from a portable key device and that perform locking and unlocking based on an ID collation result by wireless communication are conventionally known.

[0003] In this locking / unlocking system for a house, if the ID given to the portable key device is the same, a problem arises in the way of providing a service when the portable key device is lost, and the production of the portable key device is problematic. Since it is necessary to manage the IDs of the portable key devices, it is desirable to assign a unique ID to each of the plurality of portable key devices.

In a home locking / unlocking system in which a portable key device having a unique ID is registered, a plurality of portable key devices are simultaneously present in a radio wave communicable range between the portable key device and the lock device. Even in such a case, the key number information is given to the portable key device at the time of registration in order to prevent interference due to distribution of the same frequency radio signal to each portable key device.

When locking and unlocking, the lock device sequentially transmits a request signal including key number information to all portable key devices within the radio wave communicable range, and the portable key device responds to the request signal. Only when a request signal including the key number information given to the key device is received, a response signal including the key number information and the ID is transmitted to the lock device.

[0006] The lock device reads an ID corresponding to the key number information included in the response signal from the storage unit, and checks or matches the ID included in the response signal to perform the locking or unlocking process.

[0007] In this manner, the key number information is given to the portable key device, and the lock device sequentially accesses the portable key device, thereby avoiding interference caused by a plurality of portable key devices responding at the same time.

[0008]

However, in the locking or unlocking process described above, it is necessary to wait for the order in which the key number information given to the portable key device is accessed by the later portable key device. However, there is a problem that the locking or unlocking process takes time.

[0009] Furthermore, there is a problem that the more the number of portable key devices that can be registered increases, the more this tendency increases. For users who have portable key devices that store key number information whose access order is later. Sometimes complained about the response time of the lock device.

Further, when viewed from the lock device, the response time with the portable key device is prolonged, and power consumption is increased. In particular, a lock device using a built-in battery as a power source consumes battery more quickly. There was a problem.

Accordingly, the present invention has been devised to solve the above-described problem. In a system in which a plurality of key devices can lock and unlock a lock device, the lock device is unlocked. It is an object of the present invention to provide a locking / unlocking system and a locking / unlocking method capable of shortening the communication time at the time.

[0012]

According to one aspect of the present invention, there is provided a locking / unlocking system comprising: a plurality of key devices which can be carried by a user; In a locking / unlocking system including a locking device that performs locking or unlocking by wireless communication, a first wireless transmitting / receiving unit that transmits / receives information to / from the locking device, key number information,
A first storage unit for storing key ID information, which is information for identifying the key device, and a broad ID held in common with the other key devices and the lock device; A key device having first control means for controlling transmission of key number information and key ID information; a second wireless transmitting / receiving means for transmitting / receiving information to / from a first wireless transmitting / receiving means of the key device; A second storage unit for storing key number information and key ID information corresponding to a plurality of key devices and a broad ID held in common with a plurality of key devices; a locking / unlocking unit for locking and unlocking a door; An information transmission request including the broad ID is transmitted to the key device in response to the lock request, and the key device is locked or unlocked by recognizing key ID information included in a response signal from the key device having the broad ID. Characterized in that it comprises a lock device and a second control means for controlling the locking / unlocking means.

In such a locking / unlocking system, a broad ID common to the key device and the locking device is stored, and when unlocking, the broad ID is transmitted from the locking device to the key device regardless of which key device is used. The key device is transmitted, and the key device present in the radio wave communicable range transmits the key ID information and the key number information to the lock device to unlock the lock device.

[0014] In the locking / unlocking system according to the second aspect, the locking device is operated when unlocking.
It is preferable that an unlocking operation input unit is further provided, and the second control unit transmits an information transmission request in response to a locking request or an unlocking request due to the operation of the locking / unlocking operation input unit.

In such a locking / unlocking system, wireless communication is not performed before the locking / unlocking operation input unit is operated, and an information transmission request is issued in response to the operation of the locking / unlocking operation input unit. Send

To achieve the above object, a locking / unlocking method according to a third aspect of the present invention provides a locking / unlocking method by performing wireless communication between a plurality of key devices and a locking device that can be carried by a user. In the locking / unlocking method of locking, a step of inputting a locking request or an unlocking request by the lock device, and transmitting an information transmission request including a broad ID shared by the lock device and the key device to the lock device. Transmitting from the device to the key device; reading key number information stored in an internal memory and key ID information for identifying the key device from other devices; and transmitting the key device as a response signal to the lock device from the key device And a step of recognizing key ID information included in a response signal from the key device having the broad ID and locking or unlocking the door by the locking device. To.

In such a locking / unlocking method, a common broad ID is stored in advance in each of the key device and the locking device, and when a locking request or an unlocking request is generated, first, the broadband is transmitted from the locking device to the key device. An ID is transmitted, key number information and key ID information are transmitted from the key device existing in the wireless communication range to the lock device, and locked or unlocked by the lock device.

In the locking / unlocking method according to the fourth aspect, in the step of inputting a locking request or an unlocking request with the locking device, the locking / unlocking operation performed when locking or unlocking is installed in the locking device. It is desirable that the lock operation input unit be operated to input a lock request or an unlock request.

According to such a locking / unlocking method, an information transmission request is transmitted to the key device after the locking / unlocking request input in response to the operation of the locking / unlocking operation input unit. I do.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of a locking / unlocking system and a locking / unlocking method according to the present invention will be described in detail with reference to the drawings.

According to the present invention, for example, a lock device 1 whose block configuration is shown in FIG. 1 and whose external configuration is shown in FIG. 3, and a plurality of key devices 30 whose block configuration is shown in FIG. 2 and whose external configuration is shown in FIG. The present invention is applied to a locking / unlocking system for a house, which is a passive system for a house.

The locking / unlocking system for a house is, for example, a lock device 1 installed on a door for entrance into and out of a house.
For example, a system that locks and unlocks the lock device 1 by transmitting and receiving a wireless signal to and from a key device 30 owned by a resident of a house as a user.

Locking device 1 of this locking / unlocking system for houses
Performs wireless communication with the key device 30 using a battery built in the lock device 30 instead of using a power source from inside the house (not wiring from an indoor power source).

The range in which radio signals can be communicated between the lock device 1 and the key device 30 is approximately 1 m. When the key device 30 is within the radio wave communicable range, the lock device 1 transmits a predetermined signal to the key device 3.
0 can be transmitted.

As shown in FIG. 1, the lock device 1 includes a built-in battery 2, a power supply circuit 3, a voltage detection unit 4, and a lock device 1, which function as power supply means for operating each unit described later. A power supply circuit 6 for supplying power from the battery 2 to the reset circuit 5, the receiving circuit 7, and the input processing circuit 14 for returning to the setting is provided.

The lock device 1 includes a receiving circuit 7 for performing wireless communication with the key device 30 and an answerback signal receiving antenna 8. In the lock device 1, the wireless signal from the key device 30 is received by the answerback signal receiving antenna 8, the receiving circuit 7 performs predetermined receiving processing, and supplies the input processing circuit 14.

Further, the lock device 1 functions as an operation input means pressed by a user, and includes a lock button 9, an unlock button 10, an ID registration button 11, and a battery exchange button 1.
2. A reset key 13 is provided. These buttons are provided to be exposed outside from the lock device 1 as shown in FIG.
It can be operated by the user. In the lock device 1, each button is configured as a switch circuit, and when each button is operated, the operated switch circuit supplies the input processing circuit 14 as an operation input signal.

The reset key 13 is used when registering the key ID information of the key device 30 in the lock device 1, and when the reset key 13 is pressed, the lock device 1 enters a key ID information registration mode.

Further, the lock device 1 includes the above-described receiving circuit 7, a plurality of buttons, an input processing circuit 14 which operates based on inputs from power supply means, a driving circuit 15 for transmitting a radio signal, and a request circuit. Signal transmitting antenna 16,
Drive circuit 17 for emitting buzzer sound and buzzer 1
8, a drive circuit 19 for displaying locking / unlocking and an LED 20 for displaying locking / unlocking, a driving circuit 21 for controlling mechanical locking / unlocking and a motor unit 22 for locking / unlocking, a driving circuit 23 for protecting a power supply, and a battery cover 24, EEPR in which various information used for locking and unlocking is stored
OM25 (Electrically Erasable Programmable Read
Only Memorry), lock-side CPU (Ce
An OSC 27 for operating the locking CPU 26 at a predetermined frequency is provided.

The input processing circuit 14 includes a lock button 9, an unlock button 10, an ID registration button 11, and a battery exchange button 12.
A predetermined process is executed in response to an input from the
Send a message to that effect.

The drive circuit 15 transmits a request signal to the key device 30 by controlling the request signal transmitting antenna 16 according to the control of the lock-side CPU 26.

The drive circuit 17 controls the buzzer 18 in accordance with the control of the lock-side CPU 26, and outputs a buzzer sound for notifying a predetermined processing operation or the like.

The drive circuit 19 is controlled by the lock-side CPU 26 so that, for example, the lock LED 20
To inform the user of this.

The drive circuit 21 and the lock CPU 26 drive the lock / unlock motor unit 22 to unlock the locked lock or lock the unlocked lock.

The drive circuit 23 locks and unlocks the battery cover 24 of the box in which the battery 2 is stored. When the battery exchange button 12 is pressed, if the key device 30 is within the radio wave communicable range, the lock CPU
Reference numeral 26 controls the drive circuit 23 so that the battery cover 24 can be removed. The battery cover 2
The state in which the battery replacement button 4 can be removed is when the battery replacement button 12 is in the ON state.

An EEPROM (Electrically Erasable Pr)
The grammable read only memory (25) is an electrically erasable nonvolatile memory that stores a plurality of key number information, a plurality of key ID information, and a broad ID. E
Key number information and key I stored in EPROM 25
The D information is unique to the key device 30 owned by the user, and is stored and managed in pairs. The key number information and the key ID information are stored in a predetermined number, for example, three pairs by the registration process.

The lock-side CPU 26 performs a predetermined operation based on the clock frequency generated from the OSC 27, and
To control each part of the system.

Further, the lock device 1 has a lock / unlock state detection switch unit 28 for detecting a mechanical lock / unlock state.
Is provided. In the unlocked state detection switch unit 28, the switch terminal 28a is closed when in the locked state, the switch terminal 28b is closed when in the unlocked state, and a signal corresponding to the state of the switch terminals 28a and 28b is input. It is supplied to the processing circuit 14.

Further, the lock device 1 includes an indoor security switch 29 provided on the indoor side. In the lock device 1, the unlocking by all the key devices 30 is invalidated by operating the indoor security switch 29.

The key device 30 functions as a power supply unit for operating each unit described later, and includes a battery 31, a voltage detection unit 32, a step-down circuit 33, and a reset circuit 34 for returning the key device 30 to an initial setting state. , A receiving circuit 36,
A power supply circuit 35 for supplying power from the battery 31 to the data input circuit 38 is provided.

The key device 30 includes a receiving circuit 36 for receiving the request signal transmitted from the lock device 1,
A request signal receiving antenna 37 is provided.

In the key device 30, the request signal transmitted from the request signal transmitting antenna 16 of the lock device 1 is received by the request signal receiving antenna 37 and supplied to the receiving circuit 36.
4

Further, the key device 30 includes the data input circuit 3
8, a wake-up circuit 39 and an answer-back signal transmitting antenna 40 are provided. The data input circuit 38 sends out predetermined data to the key-side CPU 44. The wake-up circuit 39 and the answer-back signal transmitting antenna 40 transmit an answer-back signal to the lock device 1 under the control of the key-side CPU 44.

The key device 30 further includes a drive circuit 41 for emitting a buzzer sound and a buzzer 42. In the key device 30, the drive circuit 41 operates in response to a control signal from the key-side CPU 44 to operate the buzzer 42.

Further, the key device 30 is an EEPROM.
43, a key-side CPU 44, and an OSC 45.

The EEPROM 43 is an electrically erasable non-volatile memory and stores key ID information and broad ID, and the contents are read by the key CPU 44.

The key-side CPU 44 performs a predetermined operation based on the clock frequency generated from the OSC 45, and controls the components of the key device 30 as a whole.

Even when a plurality of key devices 30 are registered in the lock device 1, the broad request stored in the EEPROM 43 of each key device 30 is common, and the broad ID included in the broad request is E
It is the same as the Broad ID stored in the EPROM 25.

For example, a common broad request is stored in the EEPROM 43 of each key device 30 owned by a family living in the same house, and the broad ID stored in the EEPROM 43 of each key device 30 is stored in the lock device 1.
(Stored in the broad request).

More specifically, when three key devices 30 are registered in the lock device 1, the key ID of the key device 30
To “00001”, “00010”, “000”
If "11", the broad ID is defined as "10000".

FIGS. 3 and 4 show an example of the external configuration of the lock device 1 and the key device 30 of the locking / unlocking system for a house shown as a block diagram in FIG. 1 and FIG.

For example, the lock device 1 is installed on a door for entrance into and out of a house. In the lock device 1, the battery 2, the receiving circuit 7, the answer back signal receiving antenna 8, the request signal transmitting antenna 1,
6, a buzzer 18, a locking / unlocking motor unit 22, and a transmission / reception changeover switch 28 are arranged. A lock button 9, an unlock button 10, an ID registration button 11, a battery replacement button 12, and a door knob 1a as a handle for opening and closing the door are arranged at positions indicated by solid lines in FIG. An indoor security switch 29 is provided on the indoor side of the lock device 1 and can be operated from the indoor.

The key device 30 is located at a position indicated by a broken line in FIG.
A battery 31, a request signal receiving antenna 36, and an answer-back signal transmitting antenna 40 are arranged. Also,
4, a battery cover 46 for storing the battery 31 and a reset key ring hole 47 serving as a reset switch for returning the key device 30 to the initial setting are arranged.

Next, the operation of registering the key device 30 with the lock device 1 will be described. In order to use the locking / unlocking system for a house, it is necessary to register key ID information assigned to the key device 30 in the lock device 1.

First, the reset key 13 is turned on,
The lock device 1 is set to the registration mode, and the key device 30 desired to be registered is arranged within a range where the lock device 1 can perform radio wave communication.

Subsequently, when the ID registration button is pressed once, the lock-side CPU 26 of the lock device 1 gives the key device 30 the key number information "1" and transmits the key number information "1". The key-side CPU 44 of the key device 30 stores the received key number information in the EEPROM 43 in pairs with the key ID information. On the other hand, the key device 30 transmits the key ID information to the lock device 1. The lock CPU 26 stores the received key ID information in the EEPROM 25 as a pair with the key number information.

When the registration is completed, the lock CPU 26 controls the drive circuit 17 and the buzzer 18 to emit a buzzer sound for notifying the completion of the registration.

If one key ID information is registered, E
Since all the key ID information registered in the EPROM 25 is deleted, if there are a plurality of key devices 30 to be registered, it is necessary to register them subsequently.

Hereinafter, the key device 30 to be registered is set to the lock device 1
The key ID information is registered by depressing the ID registration button. Next, “2” is assigned to the key number information of the key device 30 to be registered, and “3” is assigned to the next key number information.

When the reset key 13 in the ON state is turned off, the registration mode ends.

If the number of registrations exceeds the number that can be registered, the registration is invalidated and no buzzer sound is output to notify the completion of the registration. When the lock button 9 and the unlock button 10 are simultaneously pressed with the reset key turned on, all the key ID information registered in the EEPROM 25 is deleted.

Next, the operation of unlocking the locked locking device 1 will be described with reference to the flowcharts shown in FIGS.

In this flowchart, for the sake of explanation, the number of key devices 30 registered in the home locking / unlocking system is three, and the key number information given to each key device 30 is “1”. "," 2 ",
Assume that it is “3”.

First, in step S1, the lock-side CPU 26 of the lock device 1 determines whether or not the unlock button 10 has been pressed and turned on by the resident. If the switch is on, the process proceeds to step S2; otherwise, the process ends.

In step S2, the lock CPU 26
Reads the broad ID from the EEPROM 25 and controls the drive circuit 15 and the request signal transmitting antenna 16 to transmit a broad request signal including the read broad ID to the key device 30.

The key device 30 receives the transmitted broad request signal by the request signal receiving antenna 37 and sends it to the key CPU 44. Key-side CPU 44
Is the broad ID included in the received broad request signal and the broad ID stored in the EEPROM 43.
Check with D. The key CPU 44 reads the key number information and the key ID information from the EEPROM 43 when they match, generates an answer back signal including the key number information and the key ID information, and
An answer back signal generated by controlling the answer back signal transmitting antenna 40 is transmitted. When the answer back signal is being transmitted, the key-side CPU 44
1. Control the buzzer 42 to output a buzzer sound.

In step S3, the lock device 1 receives the answer back signal transmitted from the key device 30 by the answer back signal receiving antenna 8.

The answer back signal received by the answer back signal receiving antenna 8 is read by the input processing circuit 14 from the key number information and the key ID information, and the lock CPU is read.
26.

In step S4, the lock CPU 26
Determines whether the key number information read from the answer back signal is “1”. Key number information is "1"
If so, the process proceeds to step S5; otherwise, the process proceeds to step S6.

In step S5, the lock CPU 26
Searches for information stored in the EEPROM 25,
It is determined whether or not the key ID information read from the answer back signal is the key ID information corresponding to the key number information “1”. If the key ID information corresponds to the key number information “1”, the process proceeds to step S22 shown in FIG. 6 to unlock. If the key ID information does not correspond to the key number information “1”, the process proceeds to step S10.

In step S6, the lock CPU 26
Determines whether the key number information read from the answer back signal is “2”. Key number information is "2"
If the key number information is not "2", the process proceeds to step S8.

In step S7, the lock CPU 26
Searches the EEPROM 25 and determines whether the key ID information read from the answer back signal is the key ID information corresponding to the key number information “2”. Key I
If the D information corresponds to the key number information “2”, the process proceeds to step S22 shown in FIG. 6 to unlock.
If it does not correspond to key number information "2", the process proceeds to step S10.

In step S8, the lock CPU 26
Determines whether the key number information read from the answer back signal is "3". Key number information is "3"
If the key number information is not "3", the process proceeds to step S10.

In step S9, the lock CPU 26
Searches the EEPROM 25 and determines whether the key ID information read from the answer back signal is the key ID information corresponding to the key number information “2”. Key I
If the D information corresponds to the key number information “2”, the process proceeds to step S22 shown in FIG. If it does not correspond to key number information “1”, the process proceeds to step S10.

In step S10 and subsequent steps, there is a plurality of key devices 30 within the radio wave communicable range, interference occurs, and a broad request signal is a sequential access performed when a determination cannot be made.

In step S10, the lock-side CPU 26 of the lock device 1 generates a request signal for the key device 30 to which the key number information "1" is assigned, controls the drive circuit 15, and the request signal transmission antenna 16, and Transmit to the key device 30.

The key device 30 receives the transmitted request signal by the request signal receiving antenna 37 and sends it to the key CPU 44. The key-side CPU 44 reads the key number information and the key ID information from the EEPROM 43 in response thereto, generates an answer back signal including the key number information and the key ID information, and outputs the wake-up circuit 39,
An answer back signal generated by controlling the answer back signal transmitting antenna 40 is transmitted.

In step S11, the lock device 1 receives the answer back signal transmitted from the key device 30 by the answer back signal receiving antenna 8.

The answer back signal received by the answer back signal receiving antenna 8 is read by the input processing circuit 14 from the key number information and the key ID information, and the lock CPU is read.
26.

In step S12, the lock CPU 26
Determines whether the key number information read from the answer back signal is “1”. Key number information is "1"
If so, the process proceeds to step S13; otherwise, the process proceeds to step S14 shown in FIG.

In step S13, the lock CPU 26
Searches for information stored in the EEPROM 25,
It is determined whether the key ID information read from the answer back signal is the key ID information corresponding to the key number information “1”. If the key ID information corresponds to the key number information “1”, the process proceeds to step S22 shown in FIG. If the key number information does not correspond to "1", the process proceeds to step S14 shown in FIG.

In step S 14, the lock-side CPU 26 of the lock device 1 generates a request signal for the key device 30 to which the key number information “2” is assigned, controls the drive circuit 15 and the request signal transmission antenna 16, and Transmit to the key device 30.

The key device 30 receives the transmitted request signal by the request signal receiving antenna 37 and sends it to the key CPU 44. The key-side CPU 44 reads the key number information and the key ID information from the EEPROM 43 in response thereto, generates an answer back signal including the key number information and the key ID information, and outputs the wake-up circuit 39,
An answer back signal generated by controlling the answer back signal transmitting antenna 40 is transmitted.

In step S15, the lock device 1 receives the answer back signal transmitted from the key device 30 by the answer back signal receiving antenna 8.

The answer back signal received by the answer back signal receiving antenna 8 is read by the input processing circuit 14 from the key number information and the key ID information to the lock CPU.
26.

In step S16, the lock CPU 26
Determines whether the key number information read from the answer back signal is “2”. Key number information is "2"
If so, the process proceeds to step S17; otherwise, the process proceeds to step S18.

In step S17, the lock CPU 26
Searches the EEPROM 25 and determines whether the key ID information read from the answer back signal is the key ID information corresponding to the key number information “2”. Key I
If the D information corresponds to the key number information “2”, the process proceeds to step S22 to unlock. If it does not correspond to the key number information “2”, the process is performed in step S1
Proceed to 8.

In step S 18, the lock-side CPU 26 of the lock device 1 generates a request signal for the key device 30 to which the key number information “3” is assigned, controls the drive circuit 15 and the request signal transmission antenna 16, Transmit to the key device 30.

The key device 30 receives the transmitted request signal by the request signal receiving antenna 37 and sends it to the key-side CPU 44. The key-side CPU 44 reads the key number information and the key ID information from the EEPROM 43 in response thereto, generates an answer back signal including the key number information and the key ID information, and outputs the wake-up circuit 39,
An answer back signal generated by controlling the answer back signal transmitting antenna 40 is transmitted.

In step S19, the lock device 1 receives the answer back signal transmitted from the key device 30 by the answer back signal receiving antenna 8.

The answerback signal received by the answerback signal receiving antenna 8 is read by an input processing circuit 14 from which key number information and key ID information are read out.
26.

In step S20, the lock CPU 26
Determines whether the key number information read from the answer back signal is "3". Key number information is "3"
If so, the process proceeds to step S21; otherwise, the process ends.

In step S21, the lock CPU 26
Searches for information stored in the EEPROM 25,
It is determined whether the key ID information read from the answer back signal is the key ID information corresponding to the key number information “3”. If the key ID information corresponds to the key number information “3”, the process proceeds to step S22 to unlock. If it does not correspond to the key number information “3”, the process is terminated.

In step S22, the lock CPU 26
Controls the drive circuit 21 and the locking / unlocking motor unit 22 to unlock. Upon unlocking, the lock-side CPU 26
7. The buzzer 18 is controlled to emit a buzzer sound, and the drive circuit 19 and the lock / unlock display LED 20 are controlled to turn on the LED and notify the user of unlocking.

In step S1, when the unlock button 10 is pressed and the reset key 13 is on, the request signal is not transmitted.

The operation of locking the unlocked lock device 1 is the same as the operation of unlocking the lock device 1 described with reference to FIGS. 5 and 6, except that the lock device 1 is unlocked in step S1. Since the operation is the same except that the lock is performed by pressing the lock button 9 instead of the button 10, the description is omitted.

In this manner, in the house locking / unlocking system, after the unlocking button 10 of the locking device 1 is turned on, a broad request is transmitted from the locking device 1 to the key device 30 and an answer back signal is received. Thus, the key device 1 is unlocked when it is a legitimate key device, so that it is not necessary to constantly transmit a wireless signal from the lock device 1 to the key device 30 and power consumption can be reduced. Power can be saved.

Further, in this home unlocking / locking system, when a broad request is transmitted from the lock device 30 to the key device 30, if the plurality of key devices 30 There is a possibility that an answer back signal is transmitted from the device 30 to the lock device 1 to cause interference, and in this case, the process proceeds to step S10, and a request signal is transmitted for each key device 1. However, since it is rare that a plurality of key devices 30 exist in the radio wave transmission range, the response time can be shortened in many cases.

In the above-described embodiment, the locking / unlocking system for a house has been described. However, the present invention is not limited to this, and can be applied to a locking / unlocking system for a vehicle and other systems.

[0100]

According to the locking / unlocking system according to the first aspect, the first storage means of the plurality of key devices and the second storage device of the locking device are provided.
The common broad ID is stored in the storage means, and the first control means of the key device controls the key number information and the key ID information to be transmitted in response to a request from the lock device. Since the locking / unlocking means is controlled so as to lock or unlock by recognizing the key number information and the key ID information transmitted from the key device, it is possible to shorten the processing operation time in the locking or unlocking processing. And

According to the locking / unlocking system according to the second aspect, wireless communication is not performed before the locking / unlocking operation input unit is operated, and the locking / unlocking operation input unit is operated in response to the operation. Therefore, the power consumption of the lock device can be reduced.

According to a third aspect of the present invention, there is provided a locking / unlocking method, wherein a locking request or an unlocking request is input by a locking device, and an information transmission request including a broad ID shared by the locking device and the key device is transmitted. Transmitting from the lock device to the key device; reading key number information stored in an internal memory and key ID information for identifying the key device from other key devices; and transmitting the key device as a response signal to the lock device from the key device. ,
Recognizing the key number information and key ID information included in the response signal from the key device holding the broad ID, the locking device locks or unlocks the door, thereby shortening the processing operation time in the locking or unlocking process. It is possible to make.

According to the locking / unlocking method of the fourth aspect,
In such a locking / unlocking method, the information transmission request is transmitted to the key device after the locking / unlocking request input in response to the operation of the locking / unlocking operation input unit is input. The power consumption of the lock device can be reduced.

[Brief description of the drawings]

FIG. 1 is a block diagram for explaining a configuration of a lock device of a house locking / unlocking system to which the present invention is applied.

FIG. 2 is a block diagram for explaining a configuration of a key device in a house locking / unlocking system to which the present invention is applied.

FIG. 3 is a schematic view of a main part for explaining an external configuration of a lock device in a house locking / unlocking system to which the present invention is applied.

FIG. 4 is a schematic diagram of a main part for describing an external configuration of the key device.

FIG. 5 is a flowchart for explaining a processing procedure of an unlocking operation in the house locking / unlocking system to which the present invention is applied.

FIG. 6 is a flowchart for explaining a processing procedure of an unlocking operation in a house locking / unlocking system to which the present invention is applied.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Lock device 2 Battery 3 Power supply circuit 6 Power supply circuit 7 Receiving circuit 8 Answer back signal receiving antenna 9 Locking button 10 Unlocking button 11 ID registration button 15 Drive circuit 16 Request signal transmitting antenna 21 Drive circuit 22 Locking / unlocking motor unit 25 EEPROM 26 Lock CPU 30 Key Device 31 Battery 35 Power Supply Circuit 36 Receiving Circuit 37 Request Signal Receiving Antenna 39 Wake UP Circuit 40 Answer Back Signal Transmitting Antenna 43 EEPROM 44 Key CPU

Claims (4)

[Claims] A plurality of key devices that can be carried by a user;
A locking / unlocking system comprising a locking device for performing locking / unlocking by wireless communication with each key device; a first wireless transmitting / receiving means for transmitting / receiving information to / from the locking device; A first storage unit for storing information, key ID information for identifying the key device, and a broad ID held in common with the other key device and the lock device, in response to a request from the lock device; A key device having first control means for controlling transmission of the key number information and key ID information, a second wireless transmission / reception means for transmitting / receiving information to / from a first wireless transmission / reception means of the key device, A second storage unit for storing key number information and key ID information corresponding to the key device, and a broad ID held in common with the plurality of key devices, and a locking / unlocking unit for locking and unlocking the door. ,
An information transmission request including the broad ID is transmitted to the key device in response to the unlock request, and the key device included in the response signal from the key device holding the broad ID is recognized and locked or unlocked. And a second control means for controlling the locking / unlocking means as described above. 2. The locking device according to claim 1, further comprising a locking / unlocking operation input unit operated when unlocking, and wherein the second control unit controls the locking by operating the locking / unlocking operation input unit. 2. The locking / unlocking system according to claim 1, wherein the information transmission request is transmitted in response to the request or the unlock request. 3. A locking / unlocking device for performing locking / unlocking by performing wireless communication between a plurality of key devices and a locking device that can be carried by a user.
In the unlocking method, a step of inputting a lock request or an unlock request with the lock device; and transmitting an information transmission request including a broad ID shared by the lock device and the key device from the lock device to the key device. Transmitting key number information stored in an internal memory and key ID information for identifying the key device from other key devices, and transmitting the read key ID information from the key device to the lock device as a response signal; Recognizing key ID information included in a response signal from the key device having an ID, and locking or unlocking the door by the locking device. 4. A step of inputting a lock request or an unlock request with the lock device, wherein a lock / unlock operation input unit that is operated when locking or unlocking is installed on the lock device is operated, and the lock request is issued. 4. The locking / unlocking method according to claim 3, wherein an unlocking request is input.