KR100912896B1 - Door lock device and unlocking method using synchronization communication - Google Patents

Abstract

An object of the present invention is to provide a door lock device and a door unlocking method using a synchronous communication method that significantly reduces power consumption of an independent power source by preventing unnecessary radio waves from being generated by the remote controller.

In the door lock device using the synchronization communication method according to the first invention of the present invention, the device for unlocking the door lock based on the detection signal generated when the human body or an object, the transmission part every predetermined period-the transmission part is Generating a synchronization sync packet signal, and sequentially activating a receiving part, the transmitting part comprising: a remote controller for generating an open command signal including a remote controller identifier based on the following open command request signal; And a door lock unit configured to generate an open command request signal in synchronization with the synchronization sync packet signal, and to unlock the door lock by comparing the received remote controller identifier with the door lock unit identifier based on the open command signal. Include.

Door, Locking, Unlocking, Synchronous, Communication

Description

DOOR LOCK DEVICE AND UNLOCKING METHOD USING SYNCHRONIZATION COMMUNICATION}

The present invention relates to a door lock device and a door release method, and more particularly, to a door lock device and a door release method using a synchronous communication method.

A non-operational door lock system is a locking device (hereinafter referred to as a 'door lock') installed in a door of a home, company or vehicle and a wireless communication device carried by a user (hereinafter referred to as a 'remote controller'). It refers to a system that automatically unlocks the door lock by making communication according to the user's access to the door lock.

The non-operated door lock system of patent application 10-2004-49811 uses the same frequency band (for example, 2.4 [GHz] band) of microwaves for both the remote control device and the door lock, so that both the remote control device and the door lock The transmitter and receiver can be replaced by a single transceiver. Furthermore, since the antenna needs to use only one antenna for both transmission and reception, the number of parts can be reduced, thereby reducing the size of the product. Furthermore, because of the use of ultra-short waves, the interference caused by the unnecessary radiation propagation in the surroundings is reduced, thereby reducing the number of filters.

However, in the conventional non-operational door lock system, since the asynchronous method of separately activating the transmission part and the reception part of the door lock part and the remote controller is required, the transmission time must be set excessively long and the time for activating the reception part excessively long. (See prior art Figure 7). That is, referring to FIG. 7 of the prior document, the RU / TX is detected by the DU / RX only after the DU / TX is terminated. That is, the two preceding signals of the RU / TX generate unnecessary power consumption. In addition, since the DU / TX also does not know when to receive the RU / RX side, it must be activated and transmitted for a considerable time. In addition, the DU / RX must be active for a significant amount of time since it does not know when to receive the RU / TX. As such, the remote controller and the door lock of the door lock device according to the related art generate excessive power consumption.

In addition, since an independent power source such as a battery is used to operate the remote controller, if the power consumption is not reduced, the battery must be replaced frequently, which is inconvenient.

SUMMARY OF THE INVENTION An object of the present invention is to provide a door lock device using a synchronous communication method that significantly reduces power consumption of an independent power source by preventing unnecessary generation of radio waves of a remote controller and a door lock part.

Another object of the present invention is to provide a door lock device using a synchronization communication method that increases the use time of an independent power source such as a battery.

Another object of the present invention is to provide a door lock release method using a synchronization communication method for achieving the above objects.

In the door lock device using the synchronization communication method according to the first invention of the present invention, the device for unlocking the door lock based on the detection signal generated when the human body or an object, the transmission part every predetermined period-the transmission part is Generating a synchronization sync packet signal, and sequentially activating a receiving part, the transmitting part comprising: a remote controller for generating an open command signal including a remote controller identifier based on the following open command request signal; And a door lock unit configured to generate an open command request signal in synchronization with the synchronization sync packet signal, and to unlock the door lock by comparing the received remote controller identifier with the door lock unit identifier based on the open command signal. Include.

In addition, the door unlocking method using the synchronization communication method according to the second invention of the present invention, in the door lock unit unlocking method of the door lock device having a transmission part and a receiving part, respectively, detecting the approach of the human body or object If so, the first step of activating the door lock receiving part; A second step of receiving a synchronization sync packet signal transmitted from a remote controller transmission part while the door lock receiving part is activated; While the receiving part of the remote controller activated based on the synchronization sync packet signal maintains activation, the door lock transmitting part generates an open command request signal and activates the receiving part after a predetermined delay time. step; A fourth step of generating an open command signal while the door lock receiving part maintains activation based on the open command request signal; And a fifth step of unlocking the door lock based on the open command signal.

Preferably, the third step may include generating the open command request signal when an identifier of the door lock unit and an identifier of the remote controller match.

Preferably, the fourth step is characterized in that to generate the open command signal when the identifier of the door lock unit and the identifier of the remote controller match.

According to the present invention, by activating and synchronizing the transmission part and the reception part of the remote controller and the door lock part sequentially in one cycle, it is possible to prevent the occurrence of unnecessary signals and reduce the power consumption of the door lock part and the remote controller.

In addition, in order to operate the remote controller, an independent power source such as a battery must be used, which reduces the power consumption, thereby increasing the battery usage time.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, the terms or words used in this specification and claims should not be construed as being limited to the common or dictionary meanings, and the inventors should properly explain the concept of terms in order to best explain their own design. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention. Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

Hereinafter, exemplary embodiment (s) of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a door lock device using a synchronous communication method of the present invention, and includes a remote controller 10 and a door lock part 20.

As shown in Figure 1, the remote controller 10 of the present invention is a CPU 101 for controlling the overall operation of the remote controller, a power supply unit 102 for supplying operating power to the remote controller 10, the remote controller ( Memory unit 103, the remote controller transceiver 104 and transmit / receive that the operation control program of 10) is built-in and can store various data generated during the operation of the remote controller 10 and important data of the remote controller 10. It may be made by including a combined antenna 105.

According to an embodiment of the present invention, the memory unit 103 may be composed of a ROM 103a, a RAM 103b, and a flash memory 103c. Further, according to another embodiment of the present invention, it may be a combination of one or more of the ROM 103a, the RAM 103b, and the flash memory 103c. In addition, according to another embodiment of the present invention, it may further include a separate storage means.

In addition, the door lock 20 is largely the CPU 200 for controlling the overall operation of the door lock 20, the power supply 201 for supplying the operating power to the door lock 20, the door lock 20 The key control unit 202, which is used to select or set various functions related to the operation of the door lock unit 20, has a built-in operation control program and stores various data generated during the operation of the door lock unit 20, and locks the door. Memory unit 203 for storing important data, transceiver 204 and antenna for transmitting and receiving 205, the human body sensing unit 206 for detecting the access of the human body, door lock driver 207 required for driving the door lock ) (For example, motors or solenoids that lock or unlock doors by electric power, and various limit switches that detect locking or unlocking conditions) and low voltage conditions to detect and alert the current operating state. By mark And a secondary part (208) including a display or the like.

According to an embodiment of the present invention, the memory unit 203 may be composed of a ROM 203a, a RAM 203b, and a flash memory 203c. Further, according to another embodiment of the present invention, it may be a combination of one or more of the ROM 203a, the RAM 203b, and the flash memory 203c. In addition, according to another embodiment of the present invention, it may further include a separate storage means.

Preferably, the CPU 101, 200, and memory 103, 203 of the remote controller 10 and the door lock 20 may be implemented as one-chip microcontrollers, respectively.

Preferably, the sensor 206 may be made of an infrared sensor or the like.

2 is a flowchart illustrating a door unlocking of the door lock device using the synchronous communication method of the present invention, and is mainly performed by each of the CPUs 101 and 200.

3A is a block diagram of a sync sink packet of the remote controller shown in FIG. 2, FIG. 3B is a block diagram of an open command request signal of a door lock, and FIG. 3C is a block diagram of an open command signal of a remote controller.

4 is a timing chart according to the door lock release method using the synchronous communication method of the present invention. It is noted that there is no proportional relationship between the magnitudes of time shown.

5 is a timing diagram of deactivation of a detection signal and a reception part in the door lock according to the present invention.

An operation according to an embodiment of the present invention having such a configuration will be described.

The detection sensor 206 of the door lock 20 outputs a detection output signal, and the detection output signal supplies power for a first time T ₁ (hereinafter, this state is referred to as a 'power on' state). .) And the power supply pattern for shutting off the rest of the time (hereinafter referred to as the 'power off' state) for a predetermined second time T ₂ (for example, repeating every 200 [ms]). .

The door lock unit 20 determines whether the door is locked (S201), if the sensor is in a locked state, and a detection sensor detects an approach of a human body or an object, and when a detection signal corresponding to the detection output signal is detected (S203), the door The receiving part of the transceiver 204 of the locking portion 20 is activated for a third time T ₃ (eg 400 [ms]).

Preferably, by making the third time T ₃ longer than the second time T ₂ , the period of the transmission signal output from the remote controller 10 is longer than the output signal for detecting the human body. Power consumption can be reduced.

First time (T ₁ ): time of active state of the human body detection output signal

Second time (T ₂ ): one cycle of the output signal for human body detection

Third time (T ₃ ): activation time of the door lock receiving part

Transceiver 104 in the remote controller 10 transmits a synchronization sync packet signal including a unique ID and an address (see FIG. 3A) for a fourth time T ₄ (S207), and then passes a predetermined delay time. The power supply pattern for activating the receiving part of the transceiver in the remote controller 10 for the fifth time T ₅ and deactivating the rest of the time is repeated every sixth time T ₆ , for example 200 [ms]. .

Meanwhile, even though the transceiver 204 of the door lock 20 is activated and compared with the unique ID and address of the pre-registered door lock 20, it is determined whether or not the human body detection signal continues. If it is input as input, it is necessary to wait for a predetermined time to turn off the receiving part of the door lock part. To this end, when the time trx_on at which the receiving part of the door lock is kept active is equal to the predetermined setting time Trx_on, the receiving part of the door locking part is turned off (S211). At this time, the sensor continuously operates and when the human body detection signal is turned off and on, the receiving part of the door lock is activated again.

The reception part of the door lock part 20 receives the sync sync packet signal, and compares the received part with the unique ID and address of the pre-registered door lock part 20 (S209) to determine whether the door lock part 20 ) And the transmission and reception signal between the remote controller 10 is synchronized (S213).

When the transmission / reception signal between the door lock unit 20 and the remote controller 10 is synchronized, the door lock unit 20 receives an open command request signal including an address and a unique ID as shown in FIG. 3B for a seventh time (T _7). (S215), and after a predetermined time delay, the receiving part of the transceiver 204 in the door lock part 20 is activated for the eighth time (T ₈ ).

On the other hand, while the receiving part of the transceiver in the remote controller 10 is active (T5), the remote controller 10 determines whether there is a reception signal (RX signal) (S217), if there is an RX signal, the remote controller 10 determines whether the address and unique ID of the door lock part included in the received RX signal and the address and unique ID of the remote controller match (S219). Here, the address and unique ID of the remote controller are stored in the remote controller's memory when the product is shipped. On the other hand, if there is a match, the remote controller 10 recognizes the RX signal as an open command request signal for requesting an open command, and the remote controller 10 transmits an open command signal for commanding an open as shown in FIG. 3C (S221). ).

In this case, the open command request signal may include a preamble, address information, a door lock unique ID, and a CRC code for error checking, as shown in FIG. 3B, and the open command signal is shown in FIG. 3C. As described above, it may include a preamble, address information, a remote controller unique ID, and an CRC code for error checking. The open command signal may consist of a larger amount of data than the open command request signal, for example, about 128 [bit]. Here, the address information is used to identify each network when a plurality of door lock devices are installed in one network.

At this time, assuming that the transmission speed of the open command signal is 2 [Mbps] and the data amount is 128 [bit], it may take a fourth time (T ₄ ) of 64 [microseconds] to transmit all the transmission signals. have.

While the receiving part of the transceiver 204 in the door lock part 20 is activated (T8), the door lock part 20 receives an open command signal from the remote controller 10 and compares the unique IDs of the door lock part 20 ( S223).

If both unique IDs match, the door is unlocked (S225). If the unique IDs do not match, the door is unlocked (S227).

According to another embodiment, if the remote controller unique ID is used as it is, there is a risk of hacking, so that a conversion ID that is converted at every communication can be used. To do this, the same encryption algorithm (for example, a matrix determined by a random number) is stored in the remote controller 10 and the door lock unit 20 when the product is shipped, and matrix information containing the matrix value to be used for conversion at each communication. Is generated by a random number generation method to perform the conversion, and the transmission part of the transceiver is activated to transmit the converted ID, the matrix information, and the address information.

When all of the above situations are finished, the door lock driver 207 locks the door by using a limit switch that detects the unlocking of the door, and the door lock part 20 is previously determined by the sensor 206. A detection output signal is generated at an interval of one time T ₁ to determine whether a detection signal is input (S203), and the subsequent steps are performed.

1 is a block diagram of a door lock device using a synchronization communication method according to the present invention;

2 is a door unlocking flowchart using a synchronization communication method according to the present invention;

3A is a block diagram of a sync sync packet of the remote controller shown in FIG. 2;

Figure 3b is a block diagram of the open command request signal of the door lock;

Figure 3c is a block diagram of the open command signal of the remote controller,

4 is a timing chart according to a door lock release method using a synchronization communication method of the present invention;

5 is an activation timing diagram of a sensing signal and a reception part in the door lock according to the present invention;

<Explanation of symbols for the main parts of the drawings>

10: remote controller 20: door lock

101: CPU 102: power supply

103: memory unit 104: transceiver

105: antenna

200: CPU 201: power supply

202: key input unit 203: memory unit

204 transceiver 205 antenna

206: human body detection unit 207: door lock driving unit

208: auxiliary component

Claims (11)

A device for unlocking a door lock based on a detection signal generated when a human body or an object approaches, A remote controller (10) for sequentially activating a transmission part, wherein the transmission part generates a synchronization sync packet signal, generates an open command signal, and sequentially activates the reception part; And The door lock unit 20 which generates an open command request signal in synchronization with the synchronization sync packet signal. Including, The open command signal is based on the open command request signal, and includes a remote controller identifier, The door lock unit 20 compares the remote controller identifier received from the remote controller 10 with the door lock unit identifier based on the open command signal to unlock the door lock. Used door lock device. The method of claim 1, wherein the remote controller 10, A CPU 101 for controlling the operation of the remote controller 10; A power supply unit 102 for supplying operating power to the remote controller 10; A memory unit 103 capable of storing an operation control program and various data of the remote controller 10; Transceiver 104 to enable the transmission and reception between the remote controller 10 and the door lock portion 20; And Transmit / Receive Combined Antenna (105) Door lock device using a synchronization communication method comprising a. The method of claim 1, wherein the door lock portion 20, CPU 200 for controlling the operation of the door lock 20; A power supply unit 201 for supplying operation power of the door lock unit 20; A memory unit 203 for storing an operation control program and various data of the door lock unit 20; A transceiver 204 for transmitting and receiving between the door lock 20 and the remote controller 10; A transmit / receive combined antenna 205; Detection sensor 206; And Key input unit 202 for receiving a unique ID of the door lock 20 Door lock device using a synchronization communication method comprising a. The method according to claim 2 or 3, The remote controller (10) and the memory unit (103, 203) of the door lock unit 20 is a door lock device using a synchronous communication method comprising at least one of a ROM, RAM and flash memory. The method of claim 3, The sensor 206 is a door lock device using a synchronous communication method that is an infrared sensor. The method of claim 3, The door lock unit 20 is a door lock device using a synchronous communication method further comprises an auxiliary component 208 including a display unit for detecting and alerting to a low voltage state and a visual / acoustical display of the current operating state. The method of claim 1, The door lock device using a synchronous communication method, characterized in that even if the receiving part of the transceiver 204 in the door lock portion 20 elapses a predetermined time when the detection signal is output from the detection sensor. In the unlocking method of the door lock device, wherein the door locking unit 20 and the remote controller 10 each have a transmission part and a reception part, A first step of activating a receiving part of the door lock part 20 when sensing a human body or an object; A second step of receiving a synchronization sync packet signal transmitted from a transmitting part of the remote controller 10 while the receiving part of the door lock unit 20 is activated; While the reception part of the remote controller 10 activated based on the synchronization sync packet signal maintains activation, an open command request signal is generated through a transmission part of the door lock part 20 and a predetermined delay time is generated. A third step of activating a receiving part after; A fourth step of generating an open command signal through a transmission part of the remote controller 10 while the receiving part of the door lock part 20 maintains activation based on the open command request signal; And A fifth step of unlocking the door lock based on the open command signal; Door unlocking method using a synchronization communication method comprising a. The method of claim 8, In the third step, when the identifier of the door lock part (20) and the identifier of the remote controller (10) coincide, the open command request signal, characterized in that to generate the open command request signal. The method of claim 8, In the fourth step, when the identifier of the door lock part 20 and the identifier of the remote controller 10 coincide, the open command signal is generated. The method of claim 9 or 10, The identifier of the door locking unit 20 includes a unique ID of the door locking unit 20 and an address for distinguishing a network from which the door lock device belongs to another network. .

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