KR900007482Y1 - Electronic circuit for lock device - Google Patents

Abstract

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Description

Electronic switchgear of the door

1 is an overall schematic view showing a state in which the opening and closing device of the subject innovation door is installed.

2 is a detailed circuit diagram of the electronic switchgear of the door of the present invention.

Figure 3 is an embodiment of the present invention as a whole schematic showing the state installed when used in the door of the home.

4 is a detailed circuit diagram of the electronic switchgear of the door of FIG.

* Explanation of symbols for main parts of the drawings

A: Password generation circuit B: Engine power supply circuit

C: Signal supply circuit for door opening and closing d: Alarm generating circuit

E: door driver circuit bar: main power driver circuit

G: Starting motor driving circuit H: Power supply

Ruler: External power supply R1 ~ R10: Resistance

Comp1 to Comp4: Voltage comparator AND1 to AND3: And gate

TD: Time delay circuit ALM: Alarm

OR1-OR2: Oagate D1-D6: Diode

ENCORDER: Encoder DECORDER: Decoder

M-SW: Start Switch PF-SW: Power Off Switch

LATCH: Latch EAS1: Electronic Switch

EAS2: Start Motor Switch EAS3: Power Switch

BAT: Battery Fuse: Fuse

SA: Surge absorber A ~ H: Contact terminal

Rh: Bias Resistor CP: Capacitor

The present invention relates to an electronic switchgear of a door used in a car or a home, and in particular, an electronic switchgear of a door to install a password control circuit inside and inside a car and to open the door using a password generation circuit from the outside. It is about.

In general, the door opening and closing device of a car or a home is a mechanical structure that is designed to be opened and locked so that anyone who knows the mechanical structure can easily open and enter the car or house. Due to the development of the electronics industry, doors are opened and closed using magnetic cards or passwords or using specific frequencies. However, these devices are complicated in circuit configuration and thus lack the reliability of the devices. In this case, the device has to be disassembled, and the device has a large volume, which increases the cost of the device.

The present invention is a simple password control consisting of a door drive circuit main power drive circuit start motor circuit drive circuit alarm generation circuit and main power control supply circuit, the door supply control circuit for door opening and closing to solve the above problems By installing a circuit and connecting the encryption signal generation signal to it, the door opens when the encryption signal data is matched, and when the encryption signal data does not match, an alarm sounds to prevent theft of the vehicle. Referring to the present invention in detail by the drawings as follows.

1 is a schematic block diagram showing a state in which the door opening and closing device of the present invention is installed, and FIG. 2 is a detailed circuit diagram of the door opening and closing device of the present invention. The die for outputting the alarm and the engine power supply voltage by comparing the voltage applied from the cipher generator (A) with the driving voltage applied to the cipher generator (A) and the cipher generator (A). The engine power supply circuit (B) consisting of hautes (D1), (D2), resistors (R1 to R4), voltage comparators (comp1), and (comp2) and outputs encrypted data and signals for opening and closing the door and generating an alarm. Door opening and closing signal supply circuit (C) consisting of diodes (D3), (D4), resistors (R7 to R10), voltage comparators (comp3), and (comp4), the main power supply circuit (B), and a signal for opening and closing the door. After receiving the voltage supplied from the supply circuit Alarm generation circuit (D) consisting of an ore gate (OR1), a time delay circuit (TD), and an alarm (ALM) that emits an alarm sound, and supplied from the main power supply circuit (B) and a control supply circuit for door opening and closing (C). Door driving circuit (e) consisting of an OR gate, an ORC, a decoder DECORDER, an AND gate AND1, and an electronic switch EAS1 for opening and closing the door with the decrypted signal by decrypting the encrypted data. The latch circuit LATCH, the inverter INV2, the resistor Rh, the capacitor C1, and the power switch that apply power to the engine of the vehicle by the output signal of the AND gate AND1 of the door driving circuit e. EAS3) Starting of the vehicle by the main power drive circuit (bar) composed of the power cutoff switch (PF-SW), the output signal of the latch circuit LATCH of the main power drive circuit (bar), and the start switch (M-SW) Starter motor consisting of resistor (Rh), inverter (INV1) and end gate (AND2), and starter motor switch (EAS2) Battery (BAT) for supplying power to the drive circuit (4), the main power supply circuit (b), the door supply control circuit (c), the main power supply circuit (bar), the starter motor drive circuit (g), An external device comprising a power supply unit (A) composed of a diode (D5) and a fuse diode (D6) surge absorber (SA) for supplying external power when the power supply voltage of the power supply unit (A) is not discharged. When explaining the operation and effect of the present invention configured as described above, which is made up of a power supply unit.

First, the contact terminals (G) and (H) of the password generating circuit (A) are connected to the contact terminal of the signal supply circuit (C) for the door opening / closing to open the door of the vehicle while the power is applied from the battery (BAT) of the vehicle. C) and (D), the power supply voltage (Vcc) passes through the resistor (R7) and diode (D3) of the door open / close signal supply circuit (C) and the contact terminals (G) and ( When applied to H), a digital password stored in the encoder of the cryptographic generator circuit A is output and applied to the door opening / closing circuit C. At this time, the output terminals G of the cryptographic generator circuit A, ( H) becomes negative logic and the influence of the resistor R5 is ignored, so the voltage across the contact terminals C and D of the door opening / closing signal supply circuit C by the resistor R6 is as follows. same.

VCDL = (Vcc-VD3) * R5 '/ (R10 + R5) where (VD3: voltage across diode D3)

The voltage VCD across R5 '= (R5 x R8) / (R5 + R6) satisfies the following condition.

VCD = (V comp3-V comp4) / 2 + V comp4-VD5 (V cmop3 = Vcc × (R7 + R8) / (R7 + R8 + R9)]

(V comp4 = Vcc X R9 / (R7 + R8 + R9))

That is, since the negative input terminal of the voltage comparator COMP3 of the door open / close signal supply circuit (C) has a lower voltage than the positive input terminal, the output of the voltage comparator COMP3 becomes high and the cipher generator circuit (A) Is connected to the door open / close signal supply circuit (C). However, since the voltage comparator COMP4 has a negative input terminal higher than that of the positive input terminal, the output of the voltage comparator COMP4 is negative in the same state as the encoder output of the cipher generator.

On the other hand, if the encoder output in the cipher generator circuit is positive logic, the resistor R5 and the resistor R6 are connected in parallel, so that the contact terminals C and ( The voltage VCDh of D) is as follows.

V _CDh = (Vcc-VD3) * (R5 '(// R6) / (R5' // R6) / (R5 '// R6) + R4) [(R5' // R6) = (R5 '* R6 ) / (R5 '+ R6)]

V _CDh satisfies the following conditions.

V _CDh <(Vcomp4-VD3)

Under the above conditions, since the positive input terminal of the voltage comparison comp4 of the door open / close signal supply circuit (C) has a higher voltage than the negative input terminal, the output becomes positive logic.

As described above, the output of the encoder of the cipher generator is reproduced in the voltage comparator comp. Of the door open / close signal supply circuit (c). In this case, the voltage supplied to the encoder is the encoder. The contact terminals V _CDh and V _CDL of the door open / close signal supply circuit C are connected to each other according to the output of the signal. At this time, the signal generated from the encoder is a binary or ternary digital signal and is output in serial at a constant transmission speed per hour according to the password stored in the encoder. Made by change

On the other hand, the password input in the form of voltage from the password generation circuit (a) through the input terminal (C), (D) of the door opening and closing signal supply circuit (C) is reproduced as a digital signal by the voltage comparator (comp4) The output voltage inputted to the decoder DECORDER through the OR gate of the door driving circuit E and compared by the voltage comparator comp3 of the signal opening and closing circuit for the door opening and closing circuit C It is applied to one input terminal of the AND gate AND3 and is inputted to the time delay circuit TD through the OR gate OR1 of the alarm generation circuit D.

Therefore, the password inputted to the DECORDER of the door driver circuit is compared with the password stored in the DECORDER, and if it matches, a positive logic signal is output from the match output terminal MATCH of the decoder DECORDER. The positive logic signal is input to the other input terminal of the AND gate AND3 and to the other input terminal of the AND gate AND1. Therefore, since the positive logic signal is inputted to the door switch EAS1 at the output terminal of the AND gate AND3, the door DOOR of the vehicle is opened.

At this time, if the password inputted to the DECORDER of the door driving circuit is not matched with the password stored in the decoder, the match output terminal MATCH of the decoder will output negative logic. The signal is input to the other input terminals of the AND gates AND1 and AND3 and is applied to the reset terminal R of the alarm generation circuit D. At this time, the time delay circuit The signal applied to the TD) is delayed by a time that allows the time delay circuit TD to check whether the password inputted to the decoder DECORDER of the door driving circuit e is delayed, and then the output terminal (out). Outputs a positive logic signal through.

This output signal becomes positive logic from the match output signal terminal of the decoder DECORDER and generates an alarm by the output of the time delay circuit TD unless the reset terminal R of the alarm ALM is reset. The circuit d operates to beep.

Subsequently, when the contact terminals (G) and (H) of the password generating circuit (A) are connected to the contact terminals (A) and (B) of the main power supply circuit (B), the operation process of the door opening / closing signal supply circuit (C) is performed. In the same way as above, the output terminal of the contact voltage comparator COMP2 of the main power supply circuit B uses the decoder DECORDER to pass the encrypted data from the cipher generator A through the OR gate OR1 of the door drive circuit E. ) And then the output terminal of the voltage comparator COMP1 is connected to the one input terminal of the AND gate AND1 of the door driving circuit (E), and the time is passed through the OR gate of the alarm generating circuit (D). It is applied to the delay circuit TD.

Therefore, if the decoder DECORDER compares the input cipher data with the stored cipher, and outputs a positive logic signal from the output match terminal MATCH of the decoder DECORDER and applies it to the other input terminal of the AND gate AND1, Since the positive logic signal is input from the main power supply circuit (b) to one input terminal of the AND gate (AND1), the positive logic signal is applied to the set terminal (S) of the latch circuit (LATCH) of the main power supply circuit (bar). Therefore, the electronic switch EAS ₃ is driven from the latch circuit LATCH and the output terminal to supply power to the engine of the vehicle.

In order to start the engine for driving the vehicle, when the start switch (M-SW) of the starting motor driving circuit is turned on, the power supply voltage (Vcc) turns on the resistor (Rh) and the start switch (M-SW). Since a low signal is input to one input terminal of the AND gate (AND ₂ ), the signal is inverted by the inverter (INV ₁ ) and input as a high signal, and is input to the other input terminal of the AND gate (AND ₂ ). Since a high signal is input from the output terminal Q of the latch circuit LATCH of the main power supply driving circuit bar, the output terminal of the AND gate AND ₂ outputs a high signal to drive the starter motor switch EAS ₂ . It starts the motor by rotating the starting motor.

Subsequently, to turn off the vehicle, when the power cutoff switch (PF-SW) of the main power supply driving circuit (bar) is turned on, the power supply voltage (Vcc) is grounded through the resistor (Rh) power cutoff switch (PF-SW). The low signal is input to the reset terminal R of the circuit LATCH. However, since the signal is inverted and applied to the high signal by the inverter INV ₂ , the latch circuit LATCH is reset to reset the latch circuit LATCH. The output terminal (Q) operates as described above, but when the battery (BAT) of the vehicle is completely discharged and the encryption control circuit does not work, that is, the door is locked, unlike the mechanical lock, it is not possible to open the door. Therefore, only the door was opened by supplying power from the outside.

That is, the power supplied to the encryption control circuit is supplied through the power supply voltage (H) by a battery (BAT) or a home power supply, but when the battery (BAT) is discharged or the power failure of the external power supply (C) occurs during a power failure. When the same voltage as the power supply voltage is connected to the door opening and closing signal supply signal (C) to the power supply terminals (E) and (F), the power is supplied through the fuse and the diode D6. At this time, the diode D5 of the power voltage supply unit (a) is turned off and is not in a state of receiving power from the battery BAT of the vehicle.

Therefore, the door opening and closing supply circuit (c) and the door driving circuit (e) are driven by the emergency power of the external power supply unit (c), so that only the door can be opened by the password generation circuit (a).

A low signal is output to turn off the electronic switch (EAS3) to cut off the engine power of the vehicle.At the same time, the output signal of the latch circuit (LATCH) is applied to the other input terminal of the AND gate (AND2). Since the high signal is not output even when the automatic switch (M-SW) of the motor drive circuit (4) is turned on, the starter motor does not rotate.

4 and 5 is an embodiment of the present invention showing the state installed when used in a home door, the voltage of the password generation circuit (A) and the door opening and closing signal supply circuit (C) containing any password of FIG. The comparator comp3 is connected to the alarm ALM through the time delay circuit TD, so that the voltage comparator COMP4 of the door open / close signal supply circuit C is connected to the decoder DECORDER, but the output terminal of the decoder DECORDER. The ruler is connected to the door opening and closing switch EAS1 and to the reset terminal R of the alarm ALM.

In the case of the home door opening and closing device configured as described above, the contact terminals (G) and (H) of the password generation circuit (A) in which an arbitrary password is stored are replaced by the contact terminals (C) of the door opening and closing signal supply circuit (C), When connected to (D), the process of operating the door opening / closing signal supply circuit (C) and the encryption generating circuit (A) operates in the same manner as the above-described vehicle operation process, so that the voltage of the door opening / closing signal supply circuit (C) is operated. The comparator COMP4 inputs the cipher data to the decoder DECORDER, while the voltage comparator COMP3 of the door open / close signal supply circuit C is applied to the delay circuit TD. In the TD), a time delay for checking whether or not the password inputted to the decoder DECORDER is delayed is applied to the alarm ALM.

On the other hand, if the encrypted data input from the decoder (DECORDER) and the stored encrypted data match, the output terminal of the decoder (DECORDER) outputs a high signal to turn on the electronic switch (EAS1) to open the door and at the same time decoder The alarm signal does not sound because the alarm signal (ALM) is reset to the output signal of the DECORDER).

On the other hand, if the encrypted data inputted from the decoder (DECORDER) and the stored encrypted data do not match, the output terminal of the decoder (DECORDER) outputs a low signal, so the electronic switch (EAS1) is turned off, and the door is not opened. Since the alarm ALM is not reset, the alarm sounds.

As described above, the present invention is to install a password control circuit in the door and the inside of the car and to apply the password generated from the password generating circuit to the password control circuit using the password generating circuit in the password control circuit, the inputted password data According to this decoded output signal, the opening and closing of the door and the power supply of the engine are applied and cut off, and an alarm is issued, so that anyone can not easily open the door of the car and even if the door is opened, Since the power supply is not allowed, the vehicle cannot be started and theft can be prevented. Also, the password generation circuit can be driven by the vehicle's own power supply without a separate power supply, thereby miniaturizing its size. The circuit is a cryptographic control circuit and its power supply and encryption data. By simplifying the circuit configuration and the device, the reliability of the device can be improved, and the present invention can be used even when a battery user accidentally delays discharge of the battery or when a power failure is not installed in the home, even if a separate backup battery is not installed. By supplying and using it, it can provide an advantage that can be used for convenience.

Claims (4)

Applying a driving voltage to the password generating circuit (a) and the password generating circuit (a) for generating an arbitrarily set password, and comparing the encryption signal applied from the password generating circuit (a) to supply alarm and engine power. Output from the main power supply circuit (b) and the door open / close signal supply circuit (c) for outputting the cipher data and signals for generating door opening and closing alarms, and from the main power supply circuit (b) and the signal supply circuit (c) for the door opening and closing. The door is opened and closed by comparing the ciphering data supplied from the main power supply circuit (b) and the door opening / closing control supply circuit (c) with the alarm generating circuit (D) which causes a predetermined time delay after receiving the signal. The main power drive circuit (bar) for receiving power from the door drive circuit (e) and the door drive circuit (e) and supplying power to the engine, and the latch circuit (LATCH) of the main power drive circuit (bar). Start motor drive circuit (4), the main power supply circuit (B), control supply circuit for door opening and closing (C), main power drive circuit (B) to start the vehicle by means of a power signal and a start switch (M-SW). Power supply part (a) for supplying power voltage to the starting motor driving circuit (g) and external power supply part (i) to open the door only by supplying external power when the power supply voltage of the power supply part (a) is cut off. The electronic switchgear of the door, characterized in that the configuration to open and close the door of the car. The cryptographic generator (A) comprises an encoder (ENCORDER) and resistors (R5) and (R6) connected in parallel to generate an encryption signal by the voltage change of the resistors (R5) and (R6). Electronic opening and closing device of the door, characterized in that. The electronic switching device of a door according to claim 2, wherein a power supply and an encryption signal output are made to the encryption generating circuit (A) through contact terminals (G) and (H). The method of claim 1, wherein the code generation circuit containing the code (A) is connected to the time delay circuit (TD), the alarm (ALM) through the door opening and closing signal supply circuit (C), the decoder (DECORDER) and the door The door opening and closing switch (EAS1) to open the door when the password is matched so that it can be used as a door opening and closing device of the home, characterized in that the electronic opening and closing device of the door.