KR100226099B1 - A shutter opening and closing device with ultra-red remote control - Google Patents

Abstract

An infrared remote controller transmitting means for modulating a 16-bit encrypted infrared pulse to a predetermined frequency level and sending it out to the outside so that the shutter can be automatically opened and closed only by an encrypted code using an infrared remote transmitter / receiver; Infrared remote control receiver means for receiving the coded signal emitted from the infrared remote control transmitting means to determine whether or not the coded signal is coincident, sending a control command to the shutter driving unit when the coded signal is coincident, and activating an alarm if the coded signal does not match; And a shutter driving means for opening and closing the shutter by receiving a control command of the infrared remote control receiving means.

Description

Shutter opening / closing device with infrared remote control function

1 is a circuit diagram showing a remote control transmitter of a shutter opening / closing apparatus having an infrared remote control function according to the present invention.

FIG. 2 is a timing chart applied to each part of FIG. 1; FIG.

3 is a block diagram showing a remote control receiver of a setter switching apparatus having an infrared remote control function according to the present invention.

4A and 4B are detailed circuit diagrams of the start bit detecting section of FIG. 2 and corresponding timing charts.

5a and 5b are detailed circuit diagrams of the timing generator of FIG. 2 and corresponding timing charts.

FIG. 6 is a detailed circuit diagram of the vicinity of the shift register, comparator, code charging switch, logic, alarm and delay of FIG. 2;

7A and 7B are diagrams for explaining the operation of the shutter opening / closing control circuit and the shutter according to the present invention.

DESCRIPTION OF THE REFERENCE NUMERALS

11: 16-bit counter

12, 13, 33, 33-1, 33-2: shift registers

14, 15, 16: J / K flip flop 17, 18, 36A, 36B:

19: buffer section 21: oscillation section

31: light receiving section 32: start bit detecting section

34: timing generator 35: comparator

36: Code charging switch unit 37:

38: Delay unit 39: Logic unit

40: D-type flip flop 41: shutter

NAND1 to NAND3: NAND gates AND1 to AND7:

INT1 to INT2: Inverters OP1 to OP2: Optocoupler

IND: Infrared diodes TR1 to TR3: Transistors

SCR: Die Lister DIAC: Daichi

SW1 to SW9: Shutter control switch

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shutter opening / closing apparatus, and more particularly, to a shutter opening / closing apparatus having a remote control function for opening and closing a shutter using an encrypted code of a user.

Generally, the shutter opening / closing device is variously used for anti-theft, door shielding, or security for the passengers according to a user's desired use. However, since the shutter opening / closing apparatus has been able to open and close any one of the shutters in the state that the door locking apparatus is released, there have been various inconveniences in use in places where security is required.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide an infrared remote control function capable of automatically opening and closing a shutter using an infrared remote transmitter / receiver And a shutter opening / closing device.

According to an aspect of the present invention, there is provided a shutter opening / closing apparatus having an infrared remote control function, comprising: infrared remote controller transmitting means for modulating a 16-bit coded infrared pulse at a predetermined frequency level and sending the modulated infrared signal to the outside; Infrared remote control receiver means for receiving the coded signal emitted from the infrared remote control transmitting means to determine whether or not the coded signal is coincident, sending a control command to the shutter driving unit when the coded signal is coincident, and activating an alarm if the coded signal does not match; And a shutter drive means for opening and closing the shutter by receiving a control command of the infrared remote control receiver means.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of a shutter opening / closing apparatus having an infrared remote control function according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a circuit diagram showing a remote control transmitter of a shutter opening / closing apparatus having an infrared remote control function according to the present invention, and FIG. 2 is a timing chart applied to each part of FIG.

Referring to FIG. 1, the remote control transmitter of the present invention includes a 16-bit counter 11 for generating 16-bit encrypted infrared pulses and a 38-kHz modulated signal for 12 pulses of the infrared pulse of the 16-bit counter 11 A plurality of J / K flip-flops 14, 15 and 16 for outputting a plurality of shift registers 12 and 13 according to the infrared pulse value of the 16-bit counter 11, Dip switches 17 and 18 for outputting a charge code output in the form of a shift register 12 and 13 and a cipher code outputted by the shift registers 12 and 13 in accordance with the modulated signal, And a cryptographic code output unit.

The cipher code output unit includes a NAND gate NAND3 connected to the output terminal of the J / K flip flop 16 and the output terminal of the shift register 13, a signal amplification circuit connected to the output terminal of the NAND gate NAND3, And an infrared diode (IRD) for transmitting the amplified signal of the transistor TR2 to the outside.

When the 455 KHz signal oscillated from the oscillation unit 21 is divided by 9, the 16-bit counter 11 generates 36 shift clocks for one cycle as shown by the arrow 2a, (13). At this time, after the shift clock is generated for one period, the 16-bit counter 11 is reset through the buffer unit 19 to generate a shift clock of the next cycle. At this time, a 16-bit cipher packed in the shift registers 12 and 13 is output as a cipher modulated signal with a 16-bit serial word having an interval of 1,125 us by the shift clock, , It is possible to combine a maximum of 33,368 ciphers. However, taking into account the detection of the start bit in the receiver, the first bit and second bit are always programmed to high level.

Then, the shift registers 12 and 13 output the text weights corresponding to the same code as the second c according to the operation of the dip switches 17 and 18 with the 36 shift clocks for one period.

The J / K flip flops 14, 15 and 16 serially connected to the output terminal of the 16-bit counter 11 output a modulated signal of 38 KHz obtained by dividing the modulation signal of 455 KHz by 12 into the NAND gate NAND3 do.

Here, the pulse waveforms of FIGS. 2B and C, which have not been described, are reset signals having a time of 40, 5 ms for resetting the 16-bit counter 11 and the shift registers 12 and 13.

Therefore, the text word signal outputted from the shift register 13 is written in a modulated signal of 38 KHz, amplified into an analog signal by the transistors TR1 and TR2, and then sent to the outside through an infrared diode (IRD).

FIG. 3 is a block diagram showing a remote control receiver of a setter opening / closing apparatus having an infrared remote control function according to the present invention.

Referring to FIG. 3, the remote control receiver applied to the shutter opening and closing apparatus of the present invention includes a light receiving unit 31 for receiving an analog type text word signal from the above-described remote control transmitter and demodulating it into a 16-bit original signal, A timing generator 34 for outputting an enable signal, a shift clock, a reset signal, and a data latch signal necessary for the operation of the 16-bit text word signal of the light receiving unit 31; A shift register 33 for outputting the serial data output from the start bit detector 32 as 16-bit parallel data, a 16-bit parallel register for the shift register 33 as a charge code switch unit A comparator 35 for determining whether the data matches according to the operation of the comparator 35 and outputting the signal to the logic unit 39, (SP) for generating an audible alarm when the passwords do not coincide with each other through the logic unit 39 in accordance with the password detection signal and a thyristor (SCR) when the password is matched in the logic unit 39, (See also Fig. 7a), and a delay unit 38 for supplying driving power to the motor M.

Thus, the cryptographic signal received through the light receiving unit 31 is restored into a 16-bit serial data signal and applied to the start bit detecting unit 32. [

Then, the start bit detector 32 detects only the high-level start bit in each interval, applies the separated serial data signal to the shift register, and applies the timer enable signal to the timing generator 34.

When the shift register 33 outputs 16-bit parallel data to the comparator 35 in accordance with the shift clock and the latch signal provided from the timing generator 34, the comparator 35 outputs the parallel data to the code charging switch unit 36, And determines whether or not the data is cryptographically matched according to a code charging signal provided to the CPU.

If the passwords of the signals output from the comparator 35 match, the driving motor of the shutter is driven via the logic unit 39 and the delay unit 38. If the passwords do not match, the logic unit 39 and the alarm 37 To generate an alarm sound to the speaker SP.

A detailed description thereof will be described with reference to the following drawings.

4A and 4B are detailed circuit diagrams and timing charts of the start bit detecting section of FIG. 2, and FIGS. 5A and 5B are detailed circuit diagrams and timing charts of the timing generator of FIG. 2, A shift register, a comparator, a code loading switch, a logic unit, and an alarm and a delay unit.

Referring to FIG. 4A, the start bit detecting unit 32 includes a plurality of inverters INT6 to INT12 and an AND gate AND3, which are connected to the output terminal of the light receiving unit 31 and are connected in series.

Thus, as shown in FIG. 4B, the 16-bit serial data received from the light receiving unit 31 is delayed for a predetermined time and output to the shift register 33. The timing generator 34 A timer enable signal is applied.

5A, the timing generator 34 includes a D flip flop 40 for receiving a timer enable signal from the start bit detector 32 and outputting a timer enable bar signal and a reset bar signal, A 16-bit counter 11 for receiving a timer enable bar signal of the D-type flip-flop 40 and outputting an enable signal and a reset signal necessary for driving each part, And a plurality of NAND gates (AND4 to AND7) and inverters INT6 to INT8 for outputting an error detection enable signal, a comparator enable signal, and a reset bar signal in accordance with the above-described configuration.

Thus, a pulse waveform as shown in Fig. 5B is applied to the shift register 33, the comparator 35 and the logic section 39. [

Referring to FIG. 6, 16-bit serial data applied to the shift register 33 is logically supplied to the first shift register 33-1 and the second shift register 33-2, And applies 16-bit parallel data to the first comparator 35-1 and the second comparator 35-2. At this time, the reset bar signal and the data latch signal are inputted to the first and second shift registers 33 - 10 and 33 - 2 for the next data input, respectively.

The first and second comparators 35-1 and 35-2 are provided with a plurality of first and second shift registers 33-1 and 33-2 according to charging code values of the plurality of code charging switches 36A and 36B, (33-2), and outputs the 16-bit parallel data to the logic unit (39). The encryption code outputted to the logic unit 39 is logicized and outputted to the alarm unit 37 and the delay unit 38. If the encryption code does not match, the alarm code unit 37 drives the alarm unit 37, And outputs a thyristor driving signal and a shutter opening / closing command signal to the shutter driving control unit through the delay unit 38 when the decoded code matches.

7A and 7B are diagrams for explaining the operation of the shutter opening / closing control circuit and the shutter according to the present invention.

7A, the shutter opening / closing control circuit of the present invention includes a plurality of optical couplers OP1 and OP2 driven in accordance with the shutter command signal of the delay device 38 of FIG. 6, The motor M is driven in the forward and reverse directions through the diac DLAC and the thyristor SCR in accordance with the turn-on operation of the shutter OP2, and at the same time, And relay switches (SW1 to SW9) configured to control deceleration and up / down stop of at least two sets. At this time, the relay switch SW3 is excluded from the above configuration.

7B, when the relay RY is driven and the third switch SW3 is turned on, the up / down operation of the first and second switches SW1 and SW2 is performed during the normal speed travel interval (1) The eighth and ninth switches SW8 and SW9 perform up / down operations in the decelerating operation sections (2, 3), that is, in the lower deceleration section and the upper deceleration section, The motor is stopped in accordance with the on / off operation of the fourth and fifth switches SW4 and SW5 during the upper stop (U / S) and the lower stop (L / S) The lift up / down operation is stopped. At this time, after the shutter up / down operation is stopped, the reset signal is supplied to the delay unit 38 by the turn-on operation of the sixth and seventh switches SW6 and SW7, Wait for the signal.

As described above in detail, the shutter opening and closing apparatus having the infrared remote control function according to the present invention includes infrared remote control transmitting means for modulating a 16-bit encrypted infrared pulse at a predetermined frequency level and sending it out to the outside; Infrared remote control receiver means for receiving the coded signal emitted from the infrared remote control transmitting means to determine whether or not the coded signal is coincident, sending a control command to the shutter driving unit when the coded signal is coincident, and activating an alarm if the coded signal does not match; And a shutter drive means for opening and closing the shutter upon receipt of a control command of the infrared remote control receiver means, so that the shutter can be automatically opened and closed only by the encrypted code.

Accordingly, the present invention provides a shutter opening / closing apparatus having an infrared remote control function according to the present invention, and can transmit / receive with a 16-bit cipher code. Therefore, 33,368 cipher combinations are possible, There is an excellent effect that can be used as a shutter opening / closing device.

Further, since the present invention can be used by changing the user's password code according to the shutter opening and closing, it is possible to maintain high security.

Claims (6)

An infrared remote controller transmitting means for modulating a 16-bit encrypted infrared pulse at a predetermined frequency level and sending the modulated infrared pulse to the outside; Infrared remote control receiver means for receiving the coded signal emitted from the infrared remote control transmitting means to determine whether or not the coded signal is coincident, sending a control command to the shutter driving unit when the coded signal is coincident, and activating an alarm if the coded signal does not match; And a shutter drive means for opening and closing the shutter by receiving a control command of the infrared remote control receiver means. 2. The apparatus of claim 1, wherein the remote control transmitter comprises: a clock signal generator for generating 16-bit encrypted infrared pulses; a modulator for outputting a modulated signal of 38 KHz with a frequency division ratio of 12 pulses of the counter; A charge code output unit for outputting a code written in a plurality of shift registers according to an infrared pulse value of the counter in the form of a serial word; and a coded code output unit for transmitting the coded code of the charge code output unit to the outside. A shutter opening / closing device having a remote control function. The remote control receiver according to claim 1, wherein the remote control receiver comprises: a light receiving unit for receiving an analog type text word signal from a remote control transmitter and demodulating the analog word of text into a 16-bit original signal; an enable signal, A start bit detecting section for detecting only a start bit signal of a 16-bit text word signal of the light receiving section, and a 16-bit parallel data outputting section for outputting the serial data output from the start bit detecting section A comparator for determining whether the data is matched in accordance with the operation of the charging code switch unit and outputting the determined signal to the logic unit; and a comparator for comparing the determined signal and the error signal of the timing generator If the password does not match through the logic part according to the enable signal, When the alarm and a speaker for generating a sound, a password match in the logic section shutter opening and closing apparatus with an infrared control, characterized by a group delay adapted to supply a driving power to the motor by a thyristor. The apparatus according to claim 3, wherein the start bit detector comprises a plurality of inverters and an AND gate connected in series. The apparatus as claimed in claim 3, wherein the timing generator comprises: a D flip flop for receiving a timer enable signal from a start bit detector and outputting a timer enable bar signal and a reset bar signal; Bit counter for outputting an error detection enable signal, a comparator enable signal, and a reset bar signal in accordance with an output signal of the 16-bit counter; And an inverter for controlling the opening and closing of the shutter. 2. The image pickup apparatus according to claim 1, wherein the shutter driving means comprises: a plurality of optical couplers driven in accordance with a shutter command signal of a delay; and a driving circuit for driving the motor in the forward and reverse directions through a thyristor in accordance with the turn- And at least two relay switches for controlling the top / bottom deceleration and the top / bottom stop of the shutter according to the time point.