KR100636055B1 - Apparatus and method for power supply of digital door lock - Google Patents

Abstract

An apparatus and a method for supplying power to a digital door lock are provided to facilitate power supply to the digital door lock by using a mobile terminal without a separate cable. A digital door lock apparatus opens/closes a door lock by using an internal power supply and includes an interface part(211) and a constant voltage supply part(201). The interface part is connected to an I/O terminal of a mobile terminal and receives power from a battery in the mobile terminal. The constant voltage supply part converts the power supplied from the interface part to a voltage, which is used in the digital door lock.

Description

Apparatus and method for power supply of digital door lock}

1 is a view showing an example of a digital door lock structure applied to the present invention.

Figure 2 is a block diagram showing the internal structure of the digital door lock according to the present invention.

Figure 3 is a block diagram showing the internal structure of the constant voltage supply unit according to the present invention.

Figure 4 is a flow chart illustrating a digital door lock power supply process and operation process according to the present invention.

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

100: digital door lock 101: case

102: handle 110: central processing unit

120: door lock locking unit 130: key button input unit

140: smart card input unit 150: memory unit

160: audio device 170: display unit

180: internal power supply 201: constant voltage supply

211: interface unit

300: digital mobile communication terminal

400: PDA

500: notebook computer

600: digital camera

700: MP3 Player

The present invention relates to a power supply device and a method for supplying a digital door lock, and in particular, a digital door lock is operated by connecting a portable door and a digital door lock such as a mobile communication terminal, a PDA, a notebook computer, a digital camera, and an MP3 player to operate the digital door lock with battery power of the portable terminal. The present invention relates to a digital door lock power supply apparatus and a method thereof.

In general, door locks are installed on doors to artificially restrict unauthorized access to unauthorized places in families and apartments (apartments, single jutels, officetels, buildings, etc.). Such door locks, as well as a key opening and closing method, a dial opening and closing method, and the like, there is a door lock of a digital door lock method combined with mechanical and electronic technology. Recently, the digital door lock has overcome the disadvantages of the user's inconvenience caused by the loss of the key generated by using the existing mechanical door lock, and the disadvantages of theft and duplication of the key by a third party, and is increasingly being used.

There are various types of digital door locks such as a password input method through a key input unit, a magnetic card coated with a magnetic strip, a radio frequency (RF) card method, and an IC (Intergrated Circuit) card method. Such a digital door lock is divided into a door lock having a battery built therein and a door lock operated by receiving power from the outside. Among these, in the case of a digital door lock using an internal battery as a power source, there is a need to replace a power source such as an internal battery at regular intervals due to the consumption of power such as the internal battery. If the user runs out of the internal battery and runs out of internal batteries, the digital door lock cannot be operated unless the user uses a separate internal battery to supply power.

As described above, when the battery built in the digital door lock itself reaches the end of life, the user had to open the door by contacting the emergency battery and applying power. In this case, there is an inconvenience that the user has to buy the emergency battery directly from a stationery store or a store, and there is a problem in that the door cannot be opened and closed at all when the user cannot obtain the emergency battery. In addition, since the emergency battery used in the digital door lock is a battery that is rarely used in daily life after opening the door lock using it once, the emergency battery is wasted.

Accordingly, the present invention is to solve the problems according to the prior art, an object of the present invention by using the power of the mobile communication terminal through a process of directly connecting the interface of the mobile communication terminal and the digital door lock without a separate cable The present invention provides an apparatus and a method for supplying power to a digital door lock by operating the digital door lock.

According to an embodiment of the digital door lock according to the present invention for achieving the above object, in the digital door lock device for opening and closing the door using a power source, a mobile communication terminal, PDA, notebook computer, digital camera An interface unit connected to an input / output terminal of a portable terminal such as an MP3 player and receiving power from a battery of the portable terminal; It includes a constant voltage supply for converting the power supplied from the portable terminal to the power of the voltage used by the digital door lock.

On the other hand, according to one aspect of the digital door lock power supply method using a mobile communication terminal according to the present invention, in the method for supplying power to the digital door lock device, connecting the portable terminal to the digital door lock using each input and output terminal step; Supplying power to the digital door lock from the battery of the portable terminal; Converting the supplied power to a power having a voltage used by the digital door lock; And operating the digital door lock normally by using the converted power.

Hereinafter, a digital door lock device and its operation according to the present invention will be described in detail with reference to the accompanying drawings. First, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used for the same components even though they are shown in different drawings. In addition, in describing the present invention, when it is determined that the detailed description of the related well-known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

1 is a view showing an example of a digital door lock structure installed on the outside of the door according to the present invention.

Referring to Figure 1 will be described in detail the external form of the digital door lock according to the present invention.

An external form of the digital door lock according to the present invention includes a case 101, a handle 102, a door lock 124, a key button input unit 130, a smart card input unit 140, an interface unit 211, and the like.

The case 101 serves as a cover that functions to protect internal devices of the digital door lock such as the key button input unit 130, the smart card input unit 140, and the interface unit 211.

The handle 102 is a device installed to allow the user to manually open the door when the door lock 124 is opened.

Since the door lock 124, the key button input unit 130, and the smart card input unit 140 are also illustrated as components of the internal device of the digital door lock of FIG. 2, the configuration thereof will be described with reference to FIG. 2.

The interface unit 211 serves as a connection portion for the user to connect the portable terminal to the digital door lock 100. The interface unit 211 is connected to a standard 24-pin mobile communication input and output terminal, other input and output terminals of the mobile communication terminal 300, PDA 400, notebook computer 500, digital camera 600, MP3 player 700, etc. It can be a USB port. In addition, the interface unit 211 receives power from the portable terminal and delivers the constant voltage supply unit 201. This will be described later in the digital door lock.

Now, the internal components of the basic digital door lock according to the present invention will be described.

Figure 2 is a block diagram showing the internal structure of the digital door lock according to an embodiment of the present invention.

Digital door lock 100 according to the present invention is the central processing unit 110, the door lock locking unit 120, key button input unit 130, smart card input unit 140, memory unit 150, voice device unit 160 ), And the display unit 170 and the internal power supply unit 180 as basic components, and further includes an interface unit 211 and a constant voltage supply unit 201. In addition, as an external component, the portable terminal 300 is connected to the interface unit 211 of the digital door lock using an input / output terminal unique to the portable terminal.

The central processing unit 110 is a device that is in charge of the overall operation control of the digital door lock. First, the central processing unit 110 compares the password input from the user from the key button input unit 130 with the password stored in the memory unit 150 is set in advance to operate the door lock lock unit 120 Determine whether or not. Secondly, when the user recognizes the smart card in the smart card input unit 140, the information of the smart card is input and compared with the information stored in the memory unit 150 in advance to set the door lock lock unit 120. Determine whether to activate. Third, after receiving the key input or the information of the smart card from the user and controls the operation of the voice device 160 and the display unit 170 according to the result. Of course, the central processing unit 110 is responsible for controlling the operation of the overall digital door lock as well as these three limited control.

The door lock locking unit 120 is connected to the central processing unit 110, and serves to open and close the door lock 124 mechanically. The door lock locking unit 120 includes a motor driving unit 121, a motor 122, a door opening / lock detection unit 123, and a door lock 124.

The motor driving unit 121 is connected to the central processing unit 110 to operate the motor 122 under the control of the central processing unit 110. The motor 122 is connected to the motor driver 121 to mechanically open and close the door lock 124 under the control of the motor driver 121. The door open / lock detection unit 123 detects the position of the door lock 124 to determine whether the door lock 124 is open or closed. In addition, the door open / lock detection unit 123 reports the open / closed state of the door lock 124 to the central processing unit 110.

The key button input unit 130 is a device that allows the user to open and close the door lock 124 by entering a normal password. The key button input unit 130 and the central processing unit 110 are connected to each other, so that the password entered by the user is transmitted to the central processing unit 110.

Smart card input unit 140 is a device that allows the user to open and close the door lock 124 by recognizing a credit card, RF ID card or IC card. Like the key button input unit 130, the smart card input unit 140 is also connected to the central processing unit 110, the information of the smart card recognized by the user is transmitted to the central processing unit (110).

The key button input unit 130 and the smart card input unit 140 correspond to a device that receives a user's authentication means (eg, password, RF ID Card, IC Card). Therefore, the digital door lock 100 does not have to include both the key button input unit 130 and the smart card input unit 140, and only one or more of two components may be provided.

The memory unit 150 stores preset passwords and smart card information. The memory unit 150 is connected to the central processing unit 110, and transmits the password and smart card information that is set and stored in advance when the user enters a password or recognizes the smart card to the central processing unit 110. .

The voice device unit 160 informs the user of the state of the digital door lock, whether the password or the smart card is authenticated by voice. The voice device unit 160 includes a voice chip 161 and a speaker unit 162. In addition, the voice device unit 160 is connected to the central processing unit 110 to be controlled by the central processing unit 110.

The voice chip 161 is connected to the central processing unit 110. The voice chip 161 transmits guide voice data to the speaker unit 162 to be delivered to the user under the control of the central processing unit 110. The speaker unit 162 is connected to the voice chip 161, and generates a sound wave that allows a user to listen to guide voice data received from the voice chip 161.

The display unit 170 is connected to the central processing unit 110 and is controlled by the central processing unit 110. The display unit 170 guides the user of the state of the digital door lock, whether the password or the smart card is authenticated by using a visual effect such as an LCD display or an LED lamp.

The internal power supply unit 180 serves to supply power to the components of the digital door lock 100. In general, a battery having a voltage of 6V is used for a digital door lock. Of course, the digital door lock does not operate when the batteries of the internal power supply unit 180 are exhausted.

The components characteristic of the digital door lock apparatus according to the present invention will be described. The components will be described according to the order in which the battery power of the mobile communication terminal is delivered to the digital door lock.

The portable terminal 300, 400, 500, etc. is a terminal including an input / output terminal and a battery connected to the interface unit 211 of the digital door lock. The portable terminal may be a mobile communication terminal 300 including a data input / output terminal, a PDA 400 having a USB port, a notebook computer 500, a digital camera 600, an MP3 player 700, or the like. Can be.

The batteries 302, 402, 502, etc. of the portable terminals 300, 400, 500, etc. are connected to the input / output terminals 301, 401, 501, etc. of the portable terminals. In addition, when the user connects the portable terminal and the digital door lock, the power of the portable terminal battery 302, 402, 502, etc. is transferred to the interface unit 211 of the digital door lock through the input / output terminals 301, 401, 501, etc. of the terminal. Delivered. In general, the voltage of the battery 302 of the mobile communication terminal 300 is DC 3V to 4V. However, not only batteries having a DC 3V to 4V voltage but also other portable terminals including batteries having other voltages may be used in the present invention. This is because even if the battery voltage is not 3V ~ 4V can be converted to the voltage used by the digital door lock by the constant voltage supply unit 201.

First, when the portable terminal is the mobile communication terminal 300, the connection relationship between the input / output terminal of the portable terminal and the interface unit of the digital door lock will be described.

The external appearance of the input / output terminal 301 of the mobile communication terminal will be described. The interface unit 211 of the digital door lock and the input / output terminal 301 of the mobile phone terminal may be input / output terminals standardized by the Korea Information and Communication Technology Association (TTA). Since these standard input / output terminals are composed of 24 pins, they are also referred to as standard 24 pin input / output terminals. According to TTAS.KO-06.0028, a standard for digital mobile phone input / output terminals, the input / output terminal consists of a socket (mobile phone terminal attachment part) and a plug (cable attachment part). In the present invention, the input and output terminal 301 of the mobile communication terminal 300 is composed of the socket portion of the standard 24-pin input and output terminal, the interface portion 211 of the digital door lock is composed of the plug portion of the standard 24-pin input and output terminal. Therefore, the user may directly connect the input / output terminal 301 of the mobile communication terminal 300 and the interface unit 211 of the digital door lock without a separate cable.

When a standard 24-pin input and output terminal is used as the input / output terminal 301 of the mobile communication terminal, the process of power is transferred from the input / output terminal of the mobile communication terminal 300 to the interface unit 211 of the digital door lock. The characteristics of some of these 24 pins are shown in Table 1 below. Among them, pins 12 and 19 are pins serving as ground electrodes (GND), and pins 21 and 22 are pins through which power is transferred from the mobile communication terminal 300 to peripheral devices. In the exemplary embodiment of the present invention, the battery power of the mobile communication terminal 300 is transmitted to the interface unit 211 of the digital door lock using pins 12, 19, 21, and 22 of the standard 24-pin input / output terminal. This process does not necessarily apply only to mobile phones with standard 24-pin input and output terminals. Even in the case of the mobile communication terminal 300 including an input / output terminal other than the standard standard, power may be transmitted using the technical idea as described above.

Signal name of each pin of standard 24-pin input / output terminal pin Signal Name I / O classification Remarks One Battery ID Input signal charge 4 Power (+ 0.5 ~ 5.5V) power charge 5 Power (+ 0.5 ~ 5.5V) power charge 12 Power ground power charge 13 RXD Input signal Data communication 14 TXD Output signal Data communication 16 USB Power (+ 5.0V) power USB power input 19 Power ground power charge 21 Power (+ 4.2V) / SWB + power Charging / Powering from Terminal 22 Power (+ 4.2V) / SWB + power Charging / Powering from Terminal 23 Blazer To Send (CTS) Input signal Data communication 24 Data Terminal Ready (DTR) Output signal Data communication

Hereinafter, in the case of a USB device such as a PDA 400, a notebook computer 500, a digital camera 600, an MP3 player 700, an interface unit of an input / output terminal 401, 501, 601, 701 of a USB device and a digital door lock. The connection relationship of 211 is demonstrated.

Learn about the appearance of the USB port. First, look at the appearance of the plugs on both ends of the USB cable. The standard USB cable consists of a type A plug that connects to the host and a type B plug that connects to a USB device. In general, a user inserts an A-type plug of a USB cable into a USB port (401, 501, etc.) of a USB device such as a PDA (400), a notebook computer (500). In addition, the user inserts and connects a type B plug of a USB cable to a device such as a digital camera 600 or an MP3 player 700. Therefore, the interface portion 211 of the digital door lock should have a structure in which the plug A or plug B protrudes to the outside. In this structure, the user can directly connect a USB device such as PDA 400, notebook computer 500, digital camera 600, etc. to the interface unit 211 of the digital door lock without a separate cable.

A process in which battery power, such as the PDA 400, the notebook computer 500, the digital camera 600, and the like are transmitted to the interface unit 211 through a USB cable will be described. USB transfers data and power via a USB cable. The USB cable consists of four wires: V _BUS , D ⁺ , D ^- and GND. Among them, V _BUS and GND act as a channel for power exchange between USB host and USB devices. In addition, according to the USB 2.0 specification, V _BUS should generally maintain a potential of about + 5V at the power supply. In the present invention, power is transferred from the USB device such as PDA 400, notebook computer 500, digital camera 600 to the interface unit 211 of the digital door lock using two wires of V _BUS and GND.

The interface unit 211 includes a connection unit that can be connected to an input / output terminal of the portable terminal. Of course, the interface unit 211 may also be a USB port such as an input / output terminal, a PDA 400, a notebook computer 500, a digital camera 600, an MP3 player 700, or the like of the mobile phone terminal. In addition, the interface unit 211 is connected to the constant voltage supply unit 201 and transfers the power supplied from the portable terminal to the constant voltage supply unit 201.

The constant voltage supply unit 201 converts and stabilizes the power supplied from the interface unit 211 to a voltage (for example, 6V) used by the digital door lock 100. For example, the constant voltage supply unit 201 transforms the power of the DC 3V ~ 4V of the mobile communication terminal 300 to the voltage used by the digital door lock (stepping from 4V to 6V), and stabilizes.

In addition, the constant voltage supply unit 201 is connected to the digital door lock serves to supply the transformed power to the components of the digital door lock. At this time, a rectifier circuit 206 such as a reverse diode is present at the output of the constant voltage supply unit 201 and the output of the internal power supply unit 180. The rectifier circuit 206 serves to supply power from the constant voltage supply unit 201 to the digital door lock only when the power of the internal power supply unit 180 is exhausted.

Hereinafter, the internal components of the constant voltage supply unit 201 will be described. 3 is a view showing the internal structure of the constant voltage supply unit 201 according to the present invention.

The internal components of the constant voltage supply unit 201 will be described. The constant voltage supply unit 201 includes a controller 202, a voltage converter 203, an input terminal 204, and an output terminal 205.

The input terminal 204 is connected to the interface unit 211 and the control unit 202 of the digital door lock 100. The input terminal 204 receives power from the interface unit 211 and transfers it to the controller 202.

The controller 202 is connected to the voltage converter 203. The connection between the control unit 202 and the voltage converter 203 is divided into a connection for supplying power to the voltage converter 203 and a connection for feeding back the output of the voltage converter 203. The controller 202 basically receives power of the portable terminal battery from the input terminal 204 and transmits the power to the voltage converter 203. At this time, the controller 202 compares the voltage of the input power (for example, 4V) with the voltage (for example, 6V) of the size used by the digital door lock 100, and output duty ratio (for example, 1.5 times). Is determined. The controller 202 controls the voltage converter 203 to increase or decrease the voltage by the output duty ratio. In addition, the controller 202 receives the feed back of the output power from the output of the voltage converter 203 to stabilize the output voltage of the voltage converter 203.

The voltage converter 203 is connected to the output terminal 205. The voltage converter 203 generally includes a step up converter and a step down converter. Therefore, the voltage converter 203 may increase or decrease the voltage of the input power. In the present invention, the voltage converter 203 converts the power of the portable terminal battery received from the controller 202 according to the output duty ratio control determined by the controller 202. For example, when the output duty ratio determined by the controller 202 is 1.5, the voltage converter 203 boosts the voltage of the received power by 1.5 times. The converted power is transmitted to the output terminal 205, and part of the power is fed back to the controller 202 to stabilize the output voltage.

The output terminal 205 supplies the power delivered from the voltage converter 203 to the components of the digital door lock 100.

The operation of the emergency power supply of the digital door lock according to the present invention including such components will be described.

The user connects the portable terminal input / output terminals 301, 401, 501, etc. to the interface unit 211 of the digital door lock to drive the digital door lock 100.

When the portable terminal input / output terminal is connected, the power of the battery 302, 402, 502, etc. of the portable terminal is supplied to the constant voltage supply unit 201 through the input / output terminals 301, 401, 501, etc. of the portable terminal and the interface unit 211 of the digital door lock. Is delivered.

The control unit 202 of the constant voltage supply unit 201 determines the output duty ratio according to the received voltage of the power, and transfers the power to the voltage converter 203.

The voltage converter 203 converts the received power according to the output duty ratio.

Power converted by the voltage conversion unit 203 of the constant voltage supply unit 201 is supplied to the digital door lock 100 and the digital door lock operates normally.

When the digital door lock operates normally, the user inputs a password through the key button input unit 130 or recognizes the smart card to the smart card input unit 140. At this time, the input information of the password or smart card is transmitted to the central processing unit (110).

The CPU 110 determines whether the user corresponds to an authenticated person by comparing the transmitted password or smart card information with the password or smart card information that is set and stored in the memory unit 150 in advance. When the user corresponds to an authorized person, the central processing unit 110 controls the motor driving unit 121 of the door lock locking unit 120 to open the door lock 124. In addition, the central processing unit 110 operates the audio device unit 160 and the display unit 170 to provide a guide voice or an image to the user.

The power supply method in the digital door lock according to the present invention corresponding to such an operation will be described step by step with reference to the accompanying FIG.

Figure 4 is a flow chart of the operation of the power supply method of the digital door lock according to the present invention.

As shown in FIG. 4, first, the digital door lock determines whether power of the internal battery is exhausted.

If the power of the internal battery is exhausted, the user connects the portable terminal to the digital door lock using respective input / output terminals.

In this case, there may be a method using any one device of a standard 24-pin input / output terminal, a standard 24-pin input / output terminal, an input / output terminal of another mobile communication terminal, or a USB port to connect the portable terminal to the digital door lock.

The portable terminal may be any one of a mobile communication terminal, a PDA, a notebook computer, a digital camera, or an MP3 player.

The digital door lock checks whether the portable terminal is connected to the digital door lock so that power can be transmitted.

When the portable terminal is normally connected to the digital door lock, the power of the portable terminal is supplied to the digital door lock (S104).

Power supplied to the digital door lock is converted into power of a voltage used by the digital door lock (S105).

The digital door lock is normally operated by using the converted power, thereby terminating the digital door lock power supply process (S106).

The above description has been described with reference to the accompanying drawings. This is intended to illustrate the preferred embodiment of the invention by way of example and not to limit the invention. Therefore, the protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

The power supply device and method of the digital door lock according to the present invention as described above has the effect of easily supplying power to the digital door lock using a portable terminal that the user usually has.

Conventional digital door lock using the internal power source can supply emergency power to the digital door lock only when using a commercial 9V battery (6LF22 battery) that is not easy to obtain the external power when the internal power discharge. However, according to the present invention, it is possible to easily supply power to the digital door lock using a USB device such as a mobile communication terminal having a standard 24-pin input / output terminal or a PDA having a USB port.

In principle, a cable is required to connect the 24-pin I / O terminal of the mobile communication terminal to both ends of the USB port. However, if such a cable is needed in a situation where a digital door lock is to be operated using a portable terminal, a user may feel a great inconvenience. However, in the embodiment of the present invention, since the interface portion of the digital door lock is configured as an input / output terminal symmetrical with the input / output terminal of the portable terminal, there is an advantage that a separate cable is not required.

Claims (6)

In the digital door lock device that opens and closes the door lock using an internal power source, An interface unit connected to an input / output terminal of the portable terminal to receive power from the portable terminal battery; And And a constant voltage supply unit for converting power supplied through the interface unit into a voltage used by the digital door lock. The method of claim 1, Interface unit of the digital door lock digital door lock, characterized in that it comprises any one or more of the standard 24-pin input and output terminals, the input and output terminals of the other mobile communication terminal, USB port than the standard 24-pin input and output terminals. The method of claim 1, The portable terminal is a digital door lock, characterized in that any one of a mobile terminal, PDA, notebook computer, digital camera, MP3 player. In the method for supplying power to the digital door lock device, Connecting a portable terminal to the digital door lock using an input / output terminal of the portable terminal to supply power from the battery of the terminal to the digital door lock, and converting the supplied power into a power having a voltage used by the digital door lock; And The power supply method of the digital door lock comprising the step of operating the digital door lock using the converted power. The method of claim 4, wherein The process of supplying power to the digital door lock is a standard 24-pin input and output terminal, a non-standard 24-pin input and output terminal other than the input and output terminals of the mobile communication terminal, characterized in that any one device using a USB port. The method of claim 4, wherein The portable terminal may be any one of a mobile communication terminal, a PDA, a notebook computer, a digital camera, and an MP3 player.

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