KR100537854B1 - Digital door-lock system with self-diagnosis and voice-guidance, control process of it - Google Patents

Abstract

Digital door lock system having a self-diagnosis and guidance function and a control method according to the present invention includes a microcomputer 21 for performing feedback control to the control unit 20, the microcomputer 21, the key input unit 40, When an input signal of any one of the remote controller 50 and the RF card 60 is transmitted, any problem (error) occurs in the digital door lock system by performing a preset control operation by comparing the input signal with data stored in the EEPROM 22. Is automatically diagnosed, the problem is guided to the voice message through the speaker 80, and displayed through the corresponding LED module of the LED light emitting unit 90, the user outputs the voice message and the lit LED There is an effect that it is possible to quickly solve the problem caused by taking predetermined measures prescribed by (92 to 95).

In addition, the manufacturer can recognize the voice message and the LED module that emits light through a telephone call with the user and suggest an appropriate solution, thereby improving the service awareness of the manufacturer for the user.

Description

DIGITAL DOOR-LOCK SYSTEM WITH SELF-DIAGNOSIS AND VOICE-GUIDANCE, CONTROL PROCESS OF IT}

The present invention relates to a digital door lock system. In particular, in the microcomputer of the controller, when an input signal of any one of a key input unit, a remote controller, and an RF card is transmitted, data stored in an EEPROM is compared with the input signal to perform a preset control operation. It automatically diagnoses what kind of problem (error) has occurred in the digital door lock system, and outputs the problem through the voice message and LED module, and the user takes a predetermined action according to the voice message and the lit LED. The present invention relates to a digital door lock system having a self-diagnosis and guidance function capable of quickly solving the problem, and a control method thereof.

In general, a digital door lock system includes an outer body including a key operation unit including a button operation unit and a key groove, a control unit for controlling the operation of the dead bolt in response to a signal from the button operation unit, a dead bolt as a locker, and a signal from the control unit. Operating means for mechanically operating dead bolts, latch bolts that are reeled forward and backward resiliently by being pushed by a striker installed on the door frame separately from the operation of dead bolts when the door is opened or closed, and for operating dead bolts indoors It consists of an inner body including a control lever for.

Such a conventional door lock system locks the dead bolt by a control unit receiving a signal as a person enters a password set in a button operation unit on an outer body and returns the key operation unit using a key to lock the dead state. The dead bolt is released from the striker installed in the door frame to the inner body to unlock the door, and when the predetermined time considering the closing time of the opened door has elapsed, the dead bolt automatically protrudes by the control unit. It is returned to the locked state (locked).

Recently, door lock systems having various input means in addition to button (key input) systems have been released.

However, the conventional door lock system only controls whether the door is opened or closed digitally, and does not include various additional devices for checking whether the door is opened or closed visually or by hearing. Therefore, an unfamiliar person can use the door lock system. In the case of a malfunction, the hassle of having to operate the open or close button repeatedly was troublesome.

In addition, when the door lock system malfunctions due to a user's error or an error in the system, even though the above error can be solved by a simple measure, a large number of time and economics can be achieved by applying unnecessary A / S requests to the manufacturer or the installer. There was a problem that causes loss.

The present invention has been made to solve the above problems, the control unit performs a predetermined control operation by comparing the input signal with the data stored in the EEPROM when the input signal of any one of the key input unit, remote control, RF card is transmitted Thereby automatically diagnosing what problem (error) has occurred in the digital door lock system, and outputting the problem through the voice message and the LED module, the user taking predetermined measures according to the output voice message and the lit LED. The purpose of the present invention is to provide a digital door lock system having a self-diagnosis and guidance function and a control method thereof that can solve the problem quickly.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a digital door lock system having a self-diagnosis and guidance function according to the present invention, FIG. 2 is a block diagram schematically showing a control unit for implementing a self-diagnosis and guidance function according to the present invention, and FIG. FIG. 4 is a control flow diagram schematically illustrating a control method of a digital door lock system implemented in a control unit according to the present invention. FIG. 4 is a control flow diagram schematically showing a setting operation step in the control flow diagram of FIG. 3, and FIG. 5 is a control flow diagram of FIG. 3. FIG. 6 is a control flowchart schematically illustrating a door opening operation step, and FIG. 6 is a control flowchart schematically illustrating a door closing operation step in the control flowchart of FIG. 3, and FIG. 7 schematically illustrates a key input operation step in the control flowchart of FIG. 3. 8 is a control flow diagram, and FIG. 8 is a control flow diagram schematically showing a remote controller input operation step in the control flow diagram of FIG. 3. 9 is a control flow diagram schematically illustrating an RF input operation step in the control flow diagram of FIG. 3.

As shown in FIG. 1, the digital door lock system having a self-diagnosis and guidance function according to the present invention is provided at one side of the door lock system, and includes a key input unit 40 including a keypad for inputting arbitrary numbers. ; A remote controller 50 for transmitting a radio signal by an infrared ray method; An RF card 60 for generating a predetermined RF signal when adjacent to the door lock system; A control unit 20 for performing a predetermined control operation when a signal is input from at least one of the key input unit 40, the remote control unit 50, and the RF card 60; A sensor 30 which detects whether the door is opened or closed, and detects whether the cutoff switch is operated, and transmits it to the control unit 20; A driving unit 70 for opening and closing a door by driving a motor according to a control signal of the control unit 20; A speaker 80 for outputting a stored voice message according to the control signal of the controller 20; It is installed in the state exposed to the outer side of the digital door lock system, a plurality of LED modules 92 to 95 are integrally combined, LED emitting unit for individually emitting the corresponding LED module according to the control signal of the control unit 20 90; The control unit 20, the driving unit 70, the speaker 80 and the LED light emitting unit 90 is configured to the power supply unit 10 for supplying power.

The power supply unit 10 uses a general small battery, a mercury battery, or a secondary battery so that it can be used without a separate electrical wiring work. If necessary, the power supply unit 10 may directly supply power from the wiring for home automation (HA).

The sensor 30 detects the opening or closing of the door or detects the operation of the cutoff switch that locks the digital door lock system therein. In the present invention, the sensor 30 can be used in various ways such as a proximity sensor and an optical sensor. When the door is closed or opened and the operation / stop of the cutoff switch is detected, a predetermined electrical signal is generated and transmitted to the control unit 20.

On the other hand, the present invention has three input means.

First, the key input unit 40 is a general input means composed of a Ten-Key, and controls the door lock system outdoors, the key input unit 40 may include a separate cover means.

Second, the remote controller 50 has a separate remote control receiver 26 is embedded in the door lock system to operate the door lock system remotely, the remote control receiver 26 has an antenna line (not shown) to improve the reception sensitivity. It may be provided on the inside and the outside to be configured to operate both indoors or outdoors.

Third, the RF card 60 is embedded in the door lock system so that the RF card 60 can be used in a contactless outdoor, the RF card 60 transmits a code set to a predetermined frequency to operate the door lock system.

When any one of the input means is transmitted to the door lock system according to the present invention, the control unit 20 performs a predetermined control operation to perform the operation of closing or opening the door through the driving unit 70, according to the operation state The speaker 80 outputs a prestored voice message.

In addition, when an error occurs in the door lock system, the controller 20 generates a corresponding error message through the speaker 80 and lights up corresponding LED modules 92 to 95 of the LED light emitting unit 90. This allows the user to visually recognize the currently occurring error.

Meanwhile, as shown in FIG. 2, the control unit 20 stores the password for the key input unit 40, the code of the remote controller 50, and the code of the RF card 60 in a separate storage area. 22); A timer 23 for generating a timing signal at predetermined time intervals; A key input receiver 25 for receiving an electrical signal transmitted from the key input unit 40; A remote control receiver 26 which receives an electrical signal transmitted from the remote controller 50; RF receiving unit 27 for receiving the electrical signal transmitted from the RF card 60; An A / D converter 28 for converting analog signals of the key input receiver 25, the remote controller receiver 26, and the RF receiver 27 into digital signals; A voltage detector 29 which detects a voltage supplied from the power supply unit 10 and generates a predetermined electrical signal; A memory 11 for temporarily storing the digital signal converted by the A / D converter 28; A microcomputer 21 for generating a predetermined control signal by comparing the signal transmitted from the voltage detector 29 and the signal stored in the memory 11 with a reference value preset in the EEPROM 22; Voice ICs suitable for various situations are recorded in advance, and the voice ICs 81 transmit the corresponding voice messages to the speaker 80 according to the control signal of the microcomputer 21; The LED control unit 91 is configured to emit specific LED modules 92 to 95 according to the control signal of the microcomputer 21.

The EEPROM (Electrically Programmable Read Only Memory) 22 is a highly integrated nonvolatile memory device capable of electrically erasing and programming data. In the present invention, a password of the key input unit 40, a code of the remote controller 50, and an RF card ( The code of 60 is divided and recorded in a separate area, and the user may freely change and store the password of the key input unit 40.

The electrical signal generated when the user operates the key input unit 40 is transmitted to the key input receiver 25, and the infrared signal generated when the user operates the remote controller 50 is transmitted to the remote control receiver 26. The RF signal generated when the 60 is adjacent to the door lock system is transmitted to the RF receiver 27.

At this time, the analog signal of the key input receiver 25, the remote control receiver 26, the RF receiver 27 is converted into a digital signal in the A / D converter 28 and then transferred to the microcomputer 21, the micom ( In 21), the signal transmitted to the A / D converter 28 is temporarily stored in the memory 11 and compared with the data stored in the EEPROM 22, and then the predetermined signal is determined based on the timing signal of the timer 23. The control operation is performed.

On the other hand, since the door lock system operates normally only when the voltage transmitted from the power supply unit 10 is equal to or higher than a predetermined voltage, the microcomputer 21 detects the voltage transmitted from the power supply unit 10 through the voltage detector 29 and the detected voltage is When the voltage is lower than the set voltage, a voice message such as "Please replace the battery" is guided, and the low voltage LED 93 is made to light through the LED control unit 91.

That is, the voltage detector 29 compares the detected voltage with a set voltage Vr stored in the EEPROM 22 to generate a H (High) signal when the voltage is higher than the set voltage, and an L (Low) signal when the voltage is lower than the set voltage. An operation is performed. In an embodiment of the present invention, the OP AMP is used to compare two voltages.

On the other hand, in one embodiment of the present invention, the voice IC 81 is used to generate a voice message set according to the operation signal of the control unit 20. The voice IC 81 is a voice actor for each of the professional voice actors. The guide message corresponding to the case is pre-recorded and stored, and a corresponding voice message is outputted according to the control signal of the microcomputer 21.

As another embodiment of the present invention, the guide message recorded in the voice IC 81 may be stored and used when the user records and transmits his / her own voice in advance in the ordering step.

In addition, in the present invention, when a specific problem (error situation) occurs, the user is provided with an LED light emitting unit 90 combining a plurality of LED modules 92 to 95 on the outside of the door lock system so that the user can visually recognize it. In the case of a specific error situation, the microcomputer 21 emits a corresponding LED module through the LED controller 91 to alert the user.

Each LED module constituting the LED light emitting unit 90 is divided into a low voltage LED 92, a motor error LED 93, a blocking LED 94, an input error LED (95), the LED module The number and function of can be changed arbitrarily in the production stage.

In the control unit 20 and the microcomputer 21 of the digital door lock system according to the present invention, a predetermined control operation is performed according to input signals of the voltage detector 29, the key input unit 40, the remote controller 50, and the RF card 60. The control operation will be described in detail below.

First, as shown in FIG. 3, the microcomputer 21 sequentially performs the following control operations.

First, detecting whether there is an external input signal (S100);

If there is no external input, feeding back a time delay for a set time (S101);

Operating the voltage detector 29 when there is an external input (S102);

Comparing the voltage detected by the voltage detector 29 with the reference voltage Vr (S103);

When the detected voltage is less than the reference voltage, generating a low voltage message (S104) and lighting the low voltage LED 92 (S105);

A setting operation step (S110) of determining whether there is a setting signal when the detected voltage is greater than the reference voltage;

A door opening operation step of determining whether there is a door opening signal (S120);

A door closing operation step (S130) for determining whether there is a door closing signal;

A key input operation step (S140) for determining whether a key input signal is present;

A remote control input operation step of determining whether there is a remote control input signal (S150);

An RF input operation step S160 for determining whether an RF input signal is present;

If any one of the setting signal, the door opening signal, the door closing signal, the key input signal, the remote control input signal, and the RF input signal is not input, an alarm sound is generated for 30 seconds (S106), and then a time delay is set for the setting time. The alarm notification operation step S101 of feeding back is performed.

Since the external signal includes an intruder in addition to the key input unit 40, the remote control unit 50, and the RF card 60, an intruder applies a physical shock or an electric shock without permission. If it is, the microcomputer 21 determines that the trespassing is to generate an alarm signal.

The reference voltage Vr is a minimum voltage for driving the door lock system. In the present invention, when the detected voltage is less than or equal to the reference voltage Vr, a voice message is generated so that the power supply unit 10 can be quickly replaced, and the low voltage LED 92 is generated. Lights up to alert you.

At this time, the setting operation step (S110) proceeds to the sub-steps as shown in FIG.

First, if there is a setting signal, the sub-step (S111) for guiding the input of a new password; A sub-step (S112) of receiving a password; A sub step (S113) of generating a storage signal; A substep S114 of storing a new password in a designated storage area of the EEPROM 22; Proceeding to substep S115 of generating a storage completion message.

The method of resetting and storing the password in the setting operation step S110 is a well-known technique generally used in a conventional digital door lock system, and thus, detailed description thereof will be omitted.

In addition, the door opening operation step (S120) proceeds to the sub-steps as shown in FIG.

First, if there is a door open signal, the sub-step (S121) for forward rotation of the motor for a set time; A sub-step S122 of determining whether an open position is present;

If not in the open position, the sub-step (S123) for increasing the drive time of the motor; A substep (S124) of comparing the increased driving time with a set time Tm; When the driving time is greater than the set time Tm, the feedback is rotated forward for the remaining time, and when the driving time is smaller than the set time Tm, a motor error message is generated (S125), and the motor error LED 93 is generated. Substep to be lit (S126)

In the case of the open position, the process proceeds to a substep S127 of generating an open message.

In addition, the door closing operation step (S130) proceeds to the sub-steps as shown in FIG.

First, if there is a door closing signal, the sub-step (S131) for rotating the motor for a predetermined time; A sub-step (S132) for determining whether it is a closed position;

If not in the closed position, the sub-step (S133) for increasing the drive time of the motor; A substep (S134) of comparing the increased driving time with a set time Tm; When the driving time is greater than the set time Tm, the motor is fed back and the motor is rotated again for the remaining time. When the driving time is smaller than the set time Tm, a motor error message is generated (S135), and the motor error LED 93 is generated. A sub-step S136 to be turned on;

In the case of the closed position, the process proceeds to the substep S137 of generating a closed message.

Determining whether the door is an open position or a closed position is detected by the sensor 30. In an embodiment of the present invention, the proximity sensor may be simply configured by installing a proximity sensor in a locking part (not shown) of the door. Since this is also known technique, detailed description thereof will be omitted.

The driving time of the motor means a time for rotating the motor by operating the driving unit 70 in the microcomputer 21, and the lock or release of the door is performed by the rotation of the motor. In this case, if the driving time of the motor is insufficient, the locking or releasing of the door becomes inaccurate. In the case of the microcomputer 21, the driving time of the motor is increased to compensate for this, and the driving time of the motor is larger than the set time Tm. There is an error in the motor, so the alarm message and the motor error LED (93) to alert this.

In this case, the motor may not operate normally even when the door is twisted or the latch is in close contact with the door. Therefore, when the motor error LED 93 is turned on, the user may solve the problem by restarting the door lock system while pushing the door inward. have.

In addition, in the key input operation step 140, the sub-steps are divided as shown in FIG.

Awaiting key input (141); A substep 142 of storing the input password in a memory; A substep 143 of comparing the input password with the password previously stored in the EEPROM;

If the two passwords coincide with each other, a substep 144 of detecting a disconnect switch (not shown); A sub-step (S145) of determining whether the cutoff switch is operated; When the cutoff switch is operated, a cutoff message is generated (146) and the cutoff LED 94 is turned on (147). ,

If the two passwords do not coincide with each other, a substep 144-1 for generating an input error message; A substep 144-2 of incrementing an input error counter; A substep 144-3 for comparing the input error counter with the number 3; If the input error counter is smaller than the number 3, it feeds back and waits for key input. If the input error counter is larger than the number 3, the entry error LED (95) is turned on (144-4) and the input is prohibited during the set time. The process proceeds to substep 144-5.

The cutoff switch serves to forcibly change a door lock system to a locked state by a user in a room, and the operation of the cutoff switch is detected by the sensor 30 and transmitted to the controller 20. In an embodiment of the present invention, by installing a proximity sensor in a door locking unit (not shown), it is possible to determine whether the blocking switch is operated. When the blocking switch is operated, the door lock system is not operated from the outside.

Therefore, when an external input signal is transmitted while the cutoff switch is operated, the control unit 20 generates a cutoff message 146 and turns on the cutoff LED 94 to 147 to inform the user that there is a person in the room. Will be displayed.

In order to prevent the theft of the password in the present invention, the user has a chance to enter the password three times, if more than three times the entry error LED (95) is turned on (144-4), the input for a set time Prohibition 144-5.

In addition, the remote control input operation step (S150) proceeds to the sub-steps as shown in FIG.

First, if there is a remote control input signal, step S151 of reading a code transmitted from the remote control 50; A substep (S152) of comparing the code with data stored in the EEPROM (22); A sub-step (S153) of detecting a disconnect switch if the code and data match each other;

A sub-step (S154) of determining whether the cutoff switch is operated;

If the cutoff switch is operated, a cutoff message is generated (S155) and the cutoff LED 94 is turned on (S156). If the cutoff switch is not operated, if a door open signal is detected, the door proceeds to a step of opening a door (S120). When the door closing signal is detected, the process proceeds to the door closing operation step S130. Otherwise, the door closing signal is judged as noise and fed back to the initial state.

The remote controller 50 includes a specific code in an infrared transmission method, and when the door opening signal and the door closing signal are separated and transmitted, the remote controller 50 operates in the door lock system according to the transmitted signal.

In addition, in the RF input operation step S160, the sub-steps are divided as shown in FIG.

First, if there is an RF input signal, the sub-step (S161) of reading the code of the RF card 60; A substep (S162) of comparing the code with data of the EEPROM (22); A sub-step (S163) of reading back the code of the RF card 60 if the code and the data do not coincide with each other, and detecting the cutoff switch if the code and the data coincide with each other;

A sub-step (S164) of determining whether the cutoff switch is operated;

If the cutoff switch is operated, a cutoff message is generated (S165), the cutoff LED 94 is turned on (S166). If the cutoff switch is not operated, it is determined whether the door is opened again, and the door is detected as the closed position. If it is proceeded to the door opening operation step (S120), if the door is detected as the open position to proceed to the door closing operation step (S130).

The RF card 60 includes a specific code in a radio frequency and transmits the same, and repeatedly opens and closes each time it approaches. In other words, when the first operation is close, the opening operation is performed when the second operation is close, and when the operation is close twice, the operation is performed again.

Each of the components and the manner of operation is shown as an embodiment of the present invention, the scope of the present invention is not limited by the components and the manner of operation, using alternative components having the same similar function and effect or Changes to some of the modes of operation also fall within the scope of the present invention.

Digital door lock system having a self-diagnosis and guidance function and a control method according to the present invention includes a microcomputer 21 for performing feedback control to the control unit 20, the microcomputer 21, the key input unit 40, When an input signal of any one of the remote controller 50 and the RF card 60 is transmitted, any problem (error) occurs in the digital door lock system by performing a preset control operation by comparing the input signal with data stored in the EEPROM 22. Is automatically diagnosed, the problem is guided to the voice message through the speaker 80, and displayed through the corresponding LED module of the LED light emitting unit 90, the user outputs the voice message and the lit LED As a result, there is an effect that can quickly solve the problems caused by taking a predetermined action.

In addition, the manufacturer can recognize the voice message and the LED module that emits light through a telephone call with the user and suggest an appropriate solution, thereby improving the service awareness of the manufacturer for the user.

1 is a block diagram of a digital door lock system having a self-diagnosis and guidance function according to the present invention;

Figure 2 is a block diagram schematically showing a control unit for implementing a self-diagnosis and guidance function in the present invention,

3 is a control flow diagram schematically illustrating a control method of a digital door lock system implemented in a control unit according to the present invention;

4 is a control flow diagram schematically showing a setting operation step in the control flow diagram of FIG.

5 is a control flow diagram schematically showing a door opening operation step in the control flow chart of FIG.

6 is a control flow diagram schematically showing a door closing operation step in the control flow chart of FIG.

7 is a control flowchart schematically showing a key input operation step in the control flowchart of FIG. 3;

FIG. 8 is a control flowchart schematically illustrating a remote controller input operation step in the control flowchart of FIG. 3;

FIG. 9 is a control flowchart schematically illustrating an RF input operation step in the control flowchart of FIG. 3.

<Brief description of symbols for the main parts of the drawings>

10: power supply 11: memory

20: control unit 21: micom

22: EEPROM 23: Timer

25: key input receiver 26: remote control receiver

27: RF receiver 28: A / D converter

29: voltage detector 40: key input unit

50: remote control 60: RF card

70: drive unit 80: speaker

81: voice IC 82: buzzer

90: LED light emitting unit 91: LED control unit

92: Motor error LED 93: Low voltage LED

94: blocking LED 95: input error LED

Claims (10)

As an input device, a key input unit 40, a remote controller 50, and an RF card 60 are provided. When the sensor 30 detects an input signal of the input device and transmits the input signal to the control unit 20, the control unit ( In the 30) by controlling the drive unit 70 by the power of the power supply unit 10 to open and close the door and output a voice message through the speaker 80 and at the same time to individually emit the corresponding LED module of the LED light emitting unit 90. Configure the digital door lock device, The control unit 20 includes an EEPROM 22 for storing the password for the key input unit 40, the code of the remote controller 50, and the code of the RF card 60 in a separate storage area; A timer 23 for generating a timing signal at predetermined time intervals; A key input receiver 25 for receiving an electrical signal transmitted from the key input unit 40; A remote control receiver 26 which receives an electrical signal transmitted from the remote controller 50; RF receiving unit 27 for receiving the electrical signal transmitted from the RF card 60; An A / D converter 28 for converting analog signals of the key input receiver 25, the remote controller receiver 26, and the RF receiver 27 into digital signals; A voltage detector 29 which detects a voltage supplied from the power supply unit 10 and generates a predetermined electrical signal; A memory 11 for temporarily storing the digital signal converted by the A / D converter 28; A microcomputer 21 for generating a predetermined control signal by comparing the signal transmitted from the voltage detector 29 and the signal stored in the memory 11 with a reference value preset in the EEPROM 22; Voice ICs suitable for various situations are recorded in advance, and voice ICs 81 generating corresponding voice messages according to the control signal of the microcomputer 21 and delivering them to the speaker 90; Digital door lock system having a self-diagnosis and guidance function comprising an LED control unit 91 for emitting the corresponding LED module (92 to 95) according to the control signal of the microcomputer (21). In the method for controlling the digital door lock system, Detecting an external input signal (S100); A feedback step (S101); A voltage detector operating step (S102); Voltage comparison step S103; Low voltage LED lighting step (S105); Setting operation step (S110); Door opening operation step (S120); Door closing operation step (S130); A key input operation step (S140); Remote control input operation step (S150); RF input operation step (S160); Perform the alarm notification operation step (S101), In the door opening operation step (S120), if there is a door opening signal, the sub-step (S121) for forward rotation of the motor for a set time; Performing a sub-step (S122) of judging whether the door is in an open position; In the door closing operation step (S130), if there is a door closing signal, the sub-step (S131) for rotating the motor for a predetermined time; Performing a sub-step S132 of determining whether the position is a closed position; Substeps S123 and S133 for increasing the driving time of the motor when the position is not the open position or the closed position; A substep (S124, S134) for comparing the increased driving time with a set time Tm; When the drive time is greater than the set time Tm, the motor is fed back or forward rotation for the remaining time, and when the drive time is less than the set time Tm, a motor error message is generated (S125. S135), and the motor error Perform the sub-steps S126 and S136 that turn on the LED; In the open position, a substep of generating an open message (S127); The control method of the digital door lock system having a self-diagnosis and guidance function, characterized in that performing the sub-step (S137) for generating a closed message when the position is in the closed position. The method of claim 2, In the key input operation step 140, the step of waiting for a key input (141); A substep 142 of storing the input password in a memory; Performing a substep 143 of comparing the input password with a password previously stored in the EEPROM; If the two passwords coincide with each other, a sub-step 144 of detecting a disconnect switch; A sub-step (S145) of determining whether the cutoff switch is operated; When the cutoff switch is operated, a cutoff message is generated (146) and the cutoff LED is turned on (147). If the cutoff switch is not operated, it is determined that the door open signal is input and the door open operation step (S120) is performed. If the two passwords do not coincide with each other, a substep 144-1 for generating an input error message; A substep 144-2 of incrementing an input error counter; A substep 144-3 for comparing the input error counter with the number 3; If input error counter is smaller than 3, feed back and wait for key input. If input error counter is greater than 3, input fault LED is on (144-4) and input is prohibited during setting time. (144-5) a control method of a digital door lock system having a self-diagnosis and guidance function. The method of claim 2, Reading a code transmitted from the remote controller 50 when there is a remote controller input signal in the remote controller input operation step S150; A substep (S152) of comparing the code with data stored in the EEPROM (22); A sub-step (S153) of detecting a disconnect switch if the code and data match each other; Performing a sub-step (S154) of determining whether the cutoff switch is operated; If the cutoff switch is operated, a blocking message is generated (S155) and the cutoff LED is turned on (S156). If the cutoff switch is not operated, a door opening signal is detected, and the door opening operation step (S120) proceeds. The control method of the digital door lock system having a self-diagnosis and guidance function, characterized in that if the closing signal is detected, proceeds to the door closing operation step (S130), and in other cases it is judged as noise and fed back to the initial state. The method of claim 2, In the RF input operation step (S160), if there is an RF input signal, a sub-step (S161) of reading a code of the RF card 60; A substep (S162) of comparing the code with data of the EEPROM (22); A sub-step (S163) of reading back the code of the RF card 60 if the code and the data do not coincide with each other, and detecting the cutoff switch if the code and the data coincide with each other; Performing a sub-step (S164) of determining whether the cutoff switch is operated; If the cutoff switch is operated, a blocking message is generated (S165), the cutoff LED is turned on (S166), and if the cutoff switch is not operated, it is determined whether the door is opened again. Proceeding to the opening operation step (S120), if the door is detected as the open position control method of the digital door lock system with a self-diagnosis and guidance function, characterized in that for performing the door closing operation step (S130). delete delete delete delete delete