KR20160004058A - Door-lock receiving power from mobile device - Google Patents

Abstract

The present invention relates to a door lock receiving emergency electric power from a mobile device. According to the present invention, a power generation device comprises: a plurality of antennas, each of which wirelessly receives electromagnetic waves of a certain band among a plurality of frequency bands; an antenna selection unit for selecting any one of the antennas as an output terminal; a selection control unit for controlling the operation of the antenna selection unit to select any one of the antennas; and a rectification unit which is connected to the output terminal of the antenna selection unit, and rectifies the energy of the received electromagnetic waves to generate and output a direct current voltage.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a door lock receiving power source,

The present invention relates to a door lock for receiving an emergency power source from a portable device, and more particularly, to a door lock which receives an electromagnetic wave transmitted from a portable device wirelessly and generates a direct current voltage by the received electromagnetic wave, .

BACKGROUND ART [0002] In recent years, as a wireless communication technology or a wireless power transmission technology has developed, a technique of generating electric energy using electromagnetic waves of various frequencies has been developed.

Korean Utility Model Laid-Open No. 20-2010-5300 (name: digital door lock device) (hereinafter referred to as the prior art) discloses a configuration in which a power supply terminal exposed to the outside is disposed in a housing of a door lock.

However, in such a configuration in which a separate power supply terminal is provided, design and design restrictions are imposed on the housing of the door lock.

Further, if a high voltage is applied to the power supply terminal protruding to the outside of the housing by a natural disaster or maliciously, the internal circuit of the door lock may be damaged.

Korean Utility Model Publication No. 20-2010-5300

SUMMARY OF THE INVENTION In order to solve the above-described problems, it is an object of the present invention to provide a door lock capable of easily receiving power from a user portable device such as a mobile phone without being wired, wirelessly without a terminal exposed to the outside from a door lock housing do.

According to an aspect of the present invention, there is provided a door lock for receiving emergency power from a portable device, the portable terminal including: a receiving antenna for receiving electromagnetic waves transmitted from a user portable device; A power generator for generating a DC voltage using an electromagnetic wave received at the reception antenna; An authentication processing unit operated by the generated DC voltage to compare a input information provided from a user with previously stored registration information to perform a user authentication operation; And a dead bolt driver for moving the dead bolt using the generated direct current voltage as a driving power source according to the authentication result by the authentication processor to switch the door into a locked state or a unlocked state.

If the power generation unit of the door lock receives the emergency power from the portable device and tries to perform the user authentication process, at least the user is authenticated and the door is closed until the dead bolt is unlocked, And the power generating unit of the power generation unit maintains the energized state.

The user portable device may further include a transmission antenna for transmitting electromagnetic waves, a transmission control unit for controlling the transmission operation of the transmission antenna, an operation of a user who wants to supply power to the authentication processing unit and the deadbolt drive unit by sending electromagnetic waves And may include a receiving operating portion.

In addition, when the operation is input, the delivery control unit may continue the electromagnetic wave delivery operation until the authentication processing unit completes the user authentication operation and the deadbolt driver completes the movement of the dead bolt.

The transmission control unit may include software for providing an item that can be arbitrarily selected to the user and controlling the operation of the transmission antenna to transmit electromagnetic waves at a predetermined output level when the item is selected by the user .

The user portable device may further include a plurality of transmission antennas for transmitting electromagnetic waves of a plurality of frequencies, and the transmission control unit controls to transmit electromagnetic waves through each of the plurality of transmission antennas, And a DC voltage can be generated by combining all the voltages of the electromagnetic waves received by each of the plurality of reception antennas.

According to the door lock that receives the emergency power from the portable device having the above-described configuration, the direct-current voltage can be generated by using the electromagnetic wave sent from the user's portable device at a short distance and the emergency power can be generated by the generated direct- have.

Thereby, even when the built-in power source of the door lock is exhausted, the user can provide the emergency power source by using the portable device, so that the door lock can be operated.

Further, since the portable device and the door lock can be supplied with power and supplied wirelessly, not the wired connection method using a separate terminal, the operation is simple and convenient to use.

Further, since the terminal is not exposed to the outside in the door lock, it is advantageous in designing and designing the door lock.

In addition, it is impossible to damage the door lock circuit due to the inflow of high voltage through the exposed terminals.

1 is a block diagram schematically showing a configuration of a door lock according to the present invention for receiving an electromagnetic wave transmitted from a portable device and generating an emergency power source.
2 is a block diagram for explaining another embodiment of the power generation unit.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of a door lock for receiving an emergency power source from a portable device according to the present invention will be described with reference to the accompanying drawings. In the following description of the present invention, it is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the technical scope of the present invention. Will be.

Although the door lock according to the present invention described below can be operated independently by using the battery of its own, when the lifetime of the battery is exceeded and it becomes impossible to provide sufficient energy for driving the door lock, It can be implemented so as to perform a minimum operation by receiving power.

First, a door lock according to the present invention for generating an emergency power source by receiving an electromagnetic wave transmitted from a portable device will be described with reference to a block diagram of Fig. The door lock 200 according to the present invention includes a receiving antenna 210, a power generating unit 220, a battery 230, an authentication processing unit 240, a dead bolt driving unit 250, .

The receiving antenna 210 is designed to receive the electromagnetic wave transmitted from the user portable device 100. That is, the portable device 100 is designed so as to have characteristics that it can resonate with electromagnetic waves of a specific frequency to be transmitted wirelessly and can receive the electromagnetic waves at the maximum.

The power generation unit 220 generates a DC voltage using the electromagnetic wave received by the reception antenna 210. The received electromagnetic wave has a high-frequency waveform ranging from several KHz to several GHz. Therefore, the power generation unit 220 includes a function of rectifying the high frequency to a positive voltage, flattening the direct current voltage, and boosting or reducing the voltage to a desired magnitude.

The battery 230 stores the DC voltage generated by the power generation unit 220 and provides a stored DC voltage as needed.

The authentication processing unit 240 operates on the DC voltage provided by the battery 230 or the DC voltage provided directly by the power generation unit 220 and processes the user authentication for the user who approached the door lock 200. [

User authentication includes, for example, input of a password through a keypad provided in a door lock, input of user information through radio signals using RFID, NFC, infrared rays, AM / FM frequency, cellular phone, iris, fingerprint, Distribution, etc., a contact type or contactless IC card, a magnetic card, an eye button, or the like.

When the authentication processing unit 240 determines that the user authentication is successful, it transmits an operation signal to the deadbolt driver 250.

The deadbolt driver 250 operates according to the DC voltage provided by the battery 230 or the DC voltage supplied directly by the electric power generator 220. In accordance with the operation signal provided by the authentication processor 240, The dead bolt that is kept in the locked state can be driven to switch to the unlocked state. Conversely, the dead bolt in the unlocked state can be switched to the locked state.

As described above, the door lock 200 according to an embodiment of the present invention can receive energy from the portable device 100 using wireless electromagnetic waves without having a separate wired connection terminal for receiving a voltage from the outside , The DC voltage can be generated by the supplied energy.

Therefore, in designing the door lock 200, it is not necessary to provide a wire connection terminal (not shown) exposed to the outside, so that the circuit design is flexible and the design for the external shape is also free.

Also, the wired connection terminal is directly connected to the battery 230 inside the door lock or a circuit necessary for charging, so that a malicious user can electrically access the circuit inside the door lock through the wired connection terminal.

For example, a malicious user may apply a high voltage to the terminal for wired connection to damage the door lock internal circuit, which may give rise to the possibility of causing an abnormal unlocking operation of the door lock 200.

However, in the present invention, since there is no wired connection terminal exposed to the outside, such a problem can be fundamentally prevented.

On the other hand, the damage of the internal circuit due to the high voltage as described above may occur naturally such as lightning or static electricity, and such a situation can also be prevented.

Meanwhile, the portable device 100 for providing energy to the door lock according to the present invention by wireless electromagnetic waves should have the following configuration. That is, the portable device 100 should include a delivery antenna 110, a delivery control unit 120, a battery 140, and an operation unit 130.

The transmitting antenna 110 is an antenna designed to emit electromagnetic waves of a specific frequency. The transmitting antenna 110 may use, for example, an antenna designed to perform NFC, RFID communication, voice / data communication for a cellular phone, wireless Internet communication, infrared communication, satellite communication, and the like. The transmitting antenna is normally operated to communicate with a designated object in a designated manner and to emit a specified level of electromagnetic wave when it is desired to supply energy to the door lock.

The transmission control unit 120 applies a signal to a specific transmission antenna so as to emit an electromagnetic wave from the transmission antenna 110. [ That is, for example, by applying a digital signal meaningless to the antenna for wireless Internet communication, it is possible to supply energy to the door lock without causing confusion in the surrounding wireless Internet devices.

At this time, the transmission control unit 120 can control the transmission antenna 110 to transmit a signal of a predetermined strength. For example, when energy is supplied to the door lock, the electromagnetic wave can be controlled to be transmitted at the maximum intensity.

In addition, when the energy is supplied to the door lock 200, the dispatch control unit 120 continuously transmits the electromagnetic wave with no interruption or minimum disconnection.

That is, when the operation of the user, that is, the operation to supply the emergency power to the door lock, is input, the transmission control unit completes the user authentication operation of the authentication processing unit in the door lock and the deadbolt drive unit It may be configured to continue the electromagnetic wave sending operation until the movement of the bolt is completed.

For this purpose, the door lock may be configured to transmit the progress and result of user authentication, the driving state of the dead bolt, and the like to the portable device side using the electromagnetic wave as a carrier wave.

On the other hand, when the portable device 100 includes a plurality of sending antennas 211 and 212, the sending control unit 120 may control to transmit electromagnetic waves through one or several or all of the sending antennas. This will be described later.

The battery 140 is an energy storing means that the portable device 100 basically has. Each part of the portable device 100 is operated by a power source provided by the battery 140. [ The energy that the portable device 100 provides to the door lock 200 is the energy stored in the battery 140. [

The operation unit 130 receives an operation for supplying energy to the door lock 200 from the user. Of course, if the portable device 100 is a communication device such as a cellular phone, the predetermined electromagnetic wave is periodically transmitted for the purpose of maintaining communication with the base station due to the characteristics of the communication device. Therefore, May also be applied. However, such electromagnetic waves are generated in a relatively short period in a relatively short period of time, and it is difficult to provide enough energy to the door lock 200.

Therefore, by allowing the user to make a separate input through the operation unit, the delivery control unit 120 can be operated to supply energy at maximum intensity and also continuously.

Here, the configuration that the portable device 100 should have has been described. However, recent portable devices such as a smart phone have the above-described configuration in accordance with various communication requests of the user. Accordingly, the user can supply energy to the door lock by using the portable device, especially a smart phone, which he / she is currently using, without preparing a special portable device.

On the other hand, the portable device 100 can be operated by installing software (application) for operating each part for supplying energy to the door lock 200. [ This software displays an interface for supplying energy to the display of the portable device 100. When the user selects an energy supply through the interface, the software controls the transmission control unit 120 to transmit a predetermined frequency So that the electromagnetic wave is continuously transmitted at the maximum intensity.

The software may operate for a predetermined period of time, or until the door lock 200 is fully charged and the user enters an interruption of energy delivery. In addition, the door lock 200 may request communication to stop the transmission of energy through the receiving antenna 210 after performing the operation specified by the DC voltage (e.g., after switching the door to the unlocked state) May detect the request received by the sending antenna 110 of the portable device 100 and stop the energy transmission.

Generally, when the electromagnetic wave is transmitted to the maximum output from the portable device 100 such as a smart phone, a PAM output of about 33 to 28 dBm is generated, which corresponds to a current of about 1 to 2A. Therefore, the power generation unit 220 of the door lock 200 can generate a DC voltage sufficient for use as the operating power source of the deadbolt driver 250. [

Therefore, the power generation unit 220 of the door lock 200 may directly supply the DC voltage generated by the electromagnetic wave to each part of the door lock, without storing the DC voltage in the battery 230. According to such a configuration, it is possible to reduce the time required to charge the battery 230 using the generated DC voltage, and thus the emergency can be quickly executed.

If each part of the door lock 200 is implemented to operate only by the energy of the battery 230, the operation of each part will not be possible until the battery 230 is sufficiently charged. Also, since the energy supplied from the portable device will be used for charging the battery, the charging time may become longer depending on the capacity of the battery. Therefore, it takes a considerable time until the door lock starts to operate after the battery is fully charged You can.

On the other hand, the door lock for receiving the emergency power from the portable device according to the present invention may be configured to use a plurality of electromagnetic waves of different frequencies simultaneously or selectively.

This will be described with reference to FIG. 2 is a block diagram for explaining another embodiment of the power generation unit. In the configuration shown in the figure, a configuration is described in which the door lock includes a plurality of reception antennas, and the power generation unit generates DC voltage using electromagnetic waves received from one or several or all of the reception antennas.

First, the reception antenna 210 may include a plurality of antennas that wirelessly receive electromagnetic waves of a predetermined band among a plurality of frequency bands. Each antenna is specialized to be able to collect electromagnetic waves of a specific frequency band.

For example, the receiving antenna 210 may be used for a mobile communication frequency used for voice or data communication such as a cellular phone, a frequency for a short distance communication (NFC), a frequency for a short distance wireless internet called WIFI, A frequency for Bluetooth, a frequency for terrestrial TV broadcasting, a frequency for FM or AM radio broadcasting, and a specific frequency band among various radio waves.

For example, the plurality of antennas 211 and 212 constituting the receiving antenna 210 may include, for example, a first antenna 211 suitable for a mobile communication frequency band of 800 MHz to 2.1 GHz band, And a second antenna 212 suitable for the frequency band for the wireless Internet. The receiving antenna 210 according to the present invention may include two or more antennas, but the following description will be made by way of example only on the two antennas shown above.

The antenna selection unit 222 selects either one or both of the antennas in the case where the first antenna 211 and the second antenna 212 are suitable for different frequency bands as described above, .

The antenna selection unit 222 may include a switch or a relay, and the antenna selection operation is controlled in response to a control command of the selection control unit 225. [

The tuning unit 223 adjusts the frequency tuning characteristic of the receiving antenna 210. [ Thus, among the frequency bands selected by the antenna selection unit 222, the antenna can be matched to a specific sub-frequency, and the corresponding frequency can be received with optimum efficiency.

The adjustment operation of the tuning unit 223 can be controlled by the selection control unit 225. [

The selection control unit 225 controls the selection operation of the antenna selection unit 222 to sequentially select a plurality of antennas for every predetermined period (for example, 1 second or 10 seconds) The tuning characteristic of the tuning unit 223 is adjusted. Further, the selection control unit 225 may have a function of measuring the magnitude of the DC voltage or current generated by the rectifying unit 224.

The rectifying unit 224 rectifies the electromagnetic wave supplied from the output terminal of the selection control unit 225 to generate a DC voltage. The generated DC voltage may be directly supplied to the corner portion of the door lock 200 as an operating voltage or may be stored in the battery 230.

On the other hand, the selection control unit 225 alternately selects the first antenna 211 and the second antenna 212 for an arbitrary time period, selects the size of the DC voltage generated by the electromagnetic wave received from any one of the selected antennas . The first antenna 211 and the second antenna 212 can be identified by selecting an antenna for generating a larger DC voltage and controlling the antenna selection unit 222 to select an antenna for generating a larger DC voltage .

After this voltage measurement, the antenna selection and / or tuning control operation can be repeatedly executed again at an arbitrary interval.

According to this antenna selection operation, for example, when a frequency for wireless Internet is detected while generating a DC voltage from a frequency for mobile communication and a larger DC voltage can be generated from the frequency for the wireless Internet, It is possible to generate the DC voltage with the maximum efficiency from the frequency for the wireless internet by selecting the antenna to be tuned or adjusting the tuning characteristic of the antenna.

More. The antenna selector 222 may select both the first antenna 211 and the second antenna 212 at the same time.

That is, in the state where the predetermined reference value for the generated and measured DC voltage is defined, the selection control unit 225 determines whether the DC voltage generated from the first antenna 211 and the DC voltage generated from the second antenna 212 are both If the reference value is exceeded, the antenna selector 222 can be controlled to select the first antenna 211 and the second antenna 212 at the same time. This makes it possible to generate a DC voltage with the maximum efficiency by using all the receivable antennas.

The embodiments of the present invention described above are merely illustrative of the technical idea of the present invention, and the scope of protection of the present invention should be interpreted according to the claims. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as defined by the appended claims. It should be interpreted that it is included in the scope of right.

Claims (6)

A receiving antenna for receiving an electromagnetic wave transmitted from a user portable device;
A power generator for generating a DC voltage using an electromagnetic wave received at the reception antenna;
An authentication processing unit operated by the generated DC voltage to compare the input information provided by the user with previously stored registration information to perform a user authentication operation; And
And a deadbolt driver for moving the dead bolt using the generated direct current voltage as a driving power source in accordance with the authentication result by the authentication processor to switch the door to the locked state or the unlocked state, . The method according to claim 1,
When the power generation unit of the door lock receives the emergency power from the portable device and attempts the user authentication process, the authentication process of the user is performed at least until the dead bolt is in the unlocked state, Wherein the power generating unit is configured to maintain the energized state. The method according to claim 1,
The user portable device includes:
An output antenna for transmitting electromagnetic waves,
A delivery control section for controlling the delivery operation of the delivery antenna,
And an operation unit which receives an operation of a user who sends an electromagnetic wave to supply power to the authentication processing unit and the dead bolt driving unit. The method of claim 3,
Wherein the delivery control unit comprises:
Wherein when the operation is input, the authentication processing unit completes the user authentication operation and continues the electromagnetic wave sending operation until the deadbolt driver completes the movement of the dead bolt. Receiving door lock. The method according to claim 1,
Wherein the delivery control unit comprises:
And software for controlling the operation of said transmitting antenna to transmit an electromagnetic wave to a predetermined output level when said item is selected by a user, characterized by comprising: Lt; / RTI > The method according to claim 1,
Wherein the user portable device has a plurality of sending antennas for sending out electromagnetic waves of a plurality of frequencies and the sending control unit controls to transmit electromagnetic waves through each of the plurality of sending antennas,
The power generation unit may further include a plurality of reception antennas for receiving electromagnetic waves of a plurality of frequencies and a direct current voltage is generated by combining all the voltages by the electromagnetic waves received by the plurality of reception antennas A door lock that receives emergency power from a portable device.

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