KR102304863B1 - Non-contact door control device and its operation method - Google Patents

Abstract

The present invention relates to a non-contact door control device and an operation method thereof. According to the present invention, a non-polarity, non-power, and non-contact proximity button is applied without a separate line construction while using an existing physical button contact line as it is, polarity is not depended, a door is operated only by replacing the non-contact button while completely blocking human contact, a separate forced unlock button is provided, and the LED blinks as well as a sound (BEEP sound) upon detecting a human body enable the user to recognize whether it is detected or not, so it is possible to adjust the sensing distance. The present invention provides the non-contact door control device including: a manual control button configured for forced unlock (cancellation) when pressed for a preset time; an LED display that emits light when a hand, an object, or a human body is detected on a non-contact door; an infrared transmitter and an infrared receiver for transmitting and receiving infrared rays to detect the hand, the object, or the human body; a BEEP buzzer that generates a BEEP sound when detecting the hand, the object, or the human body; a capacitor charging unit for supplying necessary power as the external power is applied and charged; a switch output unit that outputs a signal for opening the door when the hand, the object, or the human body is detected; a bridge circuit unit composed of a diode bridge circuit; a BEEP buzzer for outputting a BEEP sound; and a control unit for controlling the manual control button, the LED display, the infrared transmitter, the infrared receiver, the capacitor charging unit, the switch output unit, the bridge circuit unit and the BEEP buzzer.

Description

Non-contact door control device and its operation method

The present invention relates to a non-contact door button, and more particularly, by applying a non-polarity, no power, and non-contact proximity button that uses the existing physical button contact line as it is, there is no need to construct a separate line, and without paying attention to the polarity , It relates to a non-contact door control device capable of operating a door while completely blocking human-to-human contact only by replacing a non-contact button, and an operating method thereof.

A door lock is installed on the door of a residential building such as a house or apartment, and a door of a business building such as an officetel or a shopping mall to restrict the entry of outsiders.

Among the conventional door locks, a mechanical door lock consisting of a key and a lock is the most common, but in recent years, more diverse and advanced door locks such as proximity card key, remote card key, and wireless remote control are becoming more common. am.

Most of the buttons currently used in digital door locks use open two-contact switching methods such as tekt switches, membranes, and metal domes, so that when the button is pressed with an appropriate force from the outside, both contacts are short-circuited.

That is, it is configured so that a signal is applied to the chip that controls it as the current flows through the short circuit between the two contacts, but above all, in the process of pressing the switch, the spark is generated by the discharge shape at the moment the interval between the two contacts is narrowed. The static electricity (electromagnetic waves) that builds up results in the attraction of dust and other fine dirt around it.

Eventually, due to such a phenomenon, dirt, etc. accumulates on the contacts, weakening the short-circuit state between the two contacts, and accordingly, switching malfunctions occur as the switching is repeated.

In the case of the membrane type, since graphite is coated on the contact point to form an electrical closed loop through switching operation, the graphite powder is widely distributed or thinned in the contact area during long-term use, resulting in loss of electrical properties.

On the other hand, as security technology develops, authentication technology for access control is changing to minimize human contact such as face or iris recognition. there are many

The proximity button that detects the capacitance of the human body has a shortcoming in such an automatic door entry/exit button, which has a short sensing distance, and has limitations in the external size and material of the sensor in order to detect well.

In addition, the proximity button using the infrared light-emitting sensor has a disadvantage in that the current required for operation is larger than that of the capacitive sensing method.

For reference, the capacitive sensing method can detect only a passive element without an active element, so it is driven by the minute current of the switch contact.

On the other hand, the infrared sensing method periodically turns on/off the light emitting diode to detect the reflected light, so the current consumption is larger and the sensing distance is longer than the capacitive method.

However, this conventional capacitive sensing method has a problem in that the human body (hand) must be close to within 2 cm of the proximity button to be detected.

In addition, when detection is detected, the LED blinks briefly, and there is no function to confirm detection by sound (BEEP sound).

On the other hand, the infrared sensing method detects a hand or an object up to 20 cm, but a separate power supply was required. In addition, since the sensing distance is fixed, it is detected when passing close to the button, resulting in unnecessary operation.

On the other hand, in the case of the conventional method, there is no separate physical button, so in the case of a device having a forced door unlock function, it is impossible to press for 5 to 10 seconds, so there is a problem in that it is inconvenient.

Patent Literature 1. Korean Patent Application No. 10-2008-0039718 - Automatic power control device and method for power saving Patent Document 2. Korean Patent Application No. 10-2020-0046976 - Non-contact button input device Patent Document 3. Korean Patent Application No. 10-2016-0172719 - Automatic emergency door opening and closing device Patent Document 4. Republic of Korea Patent Application No. 10-2019-0134134 - Automatic door opening switch device

Therefore, the present invention is to solve the various disadvantages and problems of the prior art as described above, and while using the existing physical button contact line as it is, a non-polarity, no power, and non-contact proximity button is applied to construct a separate line. The door can be operated while completely blocking human-to-human contact only by replacing the non-contact button, and with a separate forced unlock button, LED blinks when a human body is detected as well as a sound (BEEP sound). An object of the present invention is to provide a non-contact type door control device and an operating method thereof, so that the presence or absence of detection can be known visually and the detection distance can be adjusted.

In order to achieve the above object, the present invention provides a manual control button configured for forced unlocking (cancellation) when pressed for a preset time; An LED display that emits light when a hand, an object, or a human body is detected on a non-contact door; an infrared transmitter and an infrared receiver for transmitting and receiving infrared rays to detect a hand, an object, or a human body; BEEP buzzer that generates a BEEP sound when detecting a hand, an object, or a human body; a capacitor charging unit for supplying necessary power in response to being charged by receiving external power; a switch output unit that outputs a signal for opening a door when a hand, an object, or a human body is detected; a bridge circuit unit composed of a diode bridge circuit; BEEP buzzer that outputs BEEP sound; and a control unit for controlling the manual control button, the LED display unit, the infrared transmitter, the infrared receiver, the capacitor charging unit, the switch output unit, the bridge circuit unit, and the BEEP buzzer.

Here, the infrared transmitter is operated using a carrier frequency of a preset band, and the infrared receiver passes the corresponding carrier frequency so as not to be affected by external light.

In addition, the non-contact door control device is characterized in that it further includes a sensing distance adjusting unit for adjusting the sensing distance.

And it is characterized in that it is configured to set the selection of use of external power for ON/OFF of the BEEP sound with a DIP switch.

On the other hand, the non-contact type door control device is characterized in that it operates with a two-wire non-polar bridge diode and a power-free capacitor charging circuit.

In addition, in order to achieve the above object, the present invention includes the steps of: when a preset time comes, the control unit turns on a carrier frequency of a preset band in the infrared transmitter, and when infrared rays are received, increasing the count for a preset time; When the set time count is completed, since it is a normal object detection, the LED display of the LED display unit is output, a BEPP sound is output, a switch contact is output, the door is opened, and a sleep mode is performed for a preset time; And when the carrier is on from the infrared transmitter, if no infrared rays are received, it goes into sleep mode for a preset time, and the infrared rays are received and the count is increased. According to the method, the infrared carrier is turned on again when infrared is not received, and when infrared is received, it enters the sleep mode for a preset time.

Here, the non-contact door control device further includes a step of outputting a switch contact to open the door even when a separate manual control button is input, and entering a sleep mode after outputting the switch contact.

According to an embodiment of the present invention, the following effects are obtained.

First, the BEEP sound and LED display when the proximity button is detected to confirm the presence of auditory and visual detection, so that the user can conveniently use it and the visually impaired.

Second, a 2-wire non-polar bridge diode is configured, operated as a non-powered capacitor charging circuit, and wakeup at regular intervals in idle mode IDLE, STOP, to check detection and immediately enter standby mode to minimize power consumption. can do.

Third, by adding a mechanical physical button for realizing a forced lock release button, forced lock release is possible.

Fourth, the sensing distance can be adjusted by including a variable resistor for adjusting the sensing distance.

Fifth, it is not affected by external light by using the same carrier frequency as the remote control, thereby minimizing malfunction.

1 is a view for explaining an external shape of a non-contact type door control device according to a first embodiment of the present invention.
2 is a view for explaining the external shape of the non-contact door control device according to the second embodiment of the present invention.
3 is a block diagram for explaining an embodiment of a non-contact type door control device according to the present invention.
4 is a flowchart illustrating a method of operating a non-contact type door control device according to the first embodiment of the present invention.
5 is a flowchart illustrating a method of operating a non-contact type door control device according to a second embodiment of the present invention.

A preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings as follows.

In addition, the terms used in the present invention have been selected as widely used general terms as possible, but in certain cases, there are also terms arbitrarily selected by the applicant. It is intended to clarify that the present invention should be understood as the meaning of the term, not the name. In addition, in describing the embodiments, descriptions of technical contents that are well known in the technical field to which the present invention pertains and are not directly related to the present invention will be omitted. This is to more clearly convey the gist of the present invention without obscuring the gist of the present invention by omitting unnecessary description.

1 is a view for explaining the external shape of a non-contact door control device according to a first embodiment of the present invention.

The external shape of the non-contact door control device according to the first embodiment of the present invention is as shown in FIG. 1 , the manual control button 10 is configured on the upper surface of the rectangular main body, and the fixing screw grooves 20 are formed at the four corners of the front side. ) are configured, and the LED display unit 30, the infrared transmitter 40, and the infrared receiver 50 are configured in the center, and the BEEP buzzer hole 60 and the sensing distance adjustment device (eg, a variable resistor) are located in the lower part of the main body. Consists of.

2 is a view for explaining the external shape of the non-contact door control device according to the second embodiment of the present invention.

The external shape of the non-contact door control device according to the second embodiment of the present invention is as shown in FIG. 2 , the manual control button 10 is configured on one side of the rectangular body, and the fixing screw grooves 20 are formed on the four corners of the front side. ) are configured, and the LED display unit 30, the infrared transmitter 40, and the infrared receiver 50 are configured in the center, and the BEEP buzzer hole 60 and the sensing distance adjustment device (eg, a variable resistor) are located in the lower part of the main body. Consists of.

In this way, when the infrared transmitter 40 and the infrared receiver 50 are configured, a non-contact door control device may be configured.

As various embodiments of the external shape of the non-contact type door control device according to the first and second embodiments of the present invention, the manual control button 10 and the BEEP buzzer 60 may be configured on the front side for convenience of use. . The configuration and embodiment of such a non-contact door control device will be described in detail with reference to FIG. 3 .

3 is a block diagram for explaining an embodiment of a non-contact door control device according to the present invention.

An embodiment of the non-contact door control device 100 according to the present invention is as shown in FIG. 3 , a manual control button 10, a fixing screw groove 20, an LED display unit 30, an infrared transmitter 40, and an infrared ray. Receiver 50, capacitor charging unit 70, switch output unit 80, bridge circuit unit 90, BEEP sound setting unit 110, BEEP buzzer 120, external power switch 130 and control unit 140 consists of including

The manual control button 10 serves as a forced unlock button, for example, is configured for forced unlock (cancellation) when pressed for a preset time (5 to 10 seconds). Basically, there is no corresponding button in the case of the existing non-contact door control device, so the door can be forcibly opened if necessary by pressing the corresponding button on the access control product for more than a set time.

The fixing screw grooves 20 are grooves into which a screw for fixing the door control device 100, which is a physical button for driving the door, is inserted.

The LED display unit 30 emits light when a human body (hand) is detected on the non-contact type door.

The infrared transmitter 40 and the infrared receiver 50 perform an infrared transmission/reception operation for sensing a hand, an object, a human body, or the like. The infrared transmitter 40 operates using a carrier frequency (38 KHz). In this case, although infrared rays are included in sunlight/lighting, etc., when the reflected light is sensed by simply turning on/off infrared rays, it may malfunction due to the influence of sunlight/illumination. Therefore, a carrier frequency of 38KHz is loaded on the infrared transmitter 40 commonly used in the remote control and transmitted, and the infrared receiver 50 is configured to pass only 38KHz of the carrier frequency so that it is not affected by external light.

The BEEP buzzer 60 generates a BEEP sound when detecting a hand, an object, or a human body.

The capacitor charging unit 70 supplies power required to the door control device 100 as it is charged by receiving external power to operate without power.

The switch output unit 80 outputs a signal for opening the door when detecting a hand, an object, or a human body.

The bridge circuit unit 90 is composed of a two-wire non-polar diode bridge circuit, so that when the door control device 100 is installed, a two-wire connection is possible regardless of the polarity. In the case of the existing door control, most of the + and - polarities are marked, so it is possible to connect them according to the polarity. ) Depending on the configuration, even if connected regardless of the polarity, power can be supplied according to the polarity as it goes through the bridge (diode) circuit.

The BEEP sound setting unit 110 sets the BEEP sound on/off.

The BEEP buzzer 120 outputs a BEEP sound.

The external power switch 130 is used to select the use of a separate external power source.

The external power source 200 is selectively used.

The switch contact 300 is connected to the door, and the door control device 100 of the present invention is driven by fine power from a power source for driving the door.

The control unit 140 includes a manual control button 10, a fixing screw groove 20, an LED display unit 30, an infrared transmitter 40, an infrared receiver 50, a capacitor charging unit 70, a switch output unit 80. , the bridge circuit unit 90 , the BEEP sound setting unit 110 , the BEEP buzzer 120 and the external power switch 130 are controlled.

The present invention door control device 100 waits most of the time in sleep mode and wakes up every preset time (eg, 1/4 second) to detect the presence of hands, objects, and human bodies within a few mS, and , it controls the repetition of the operation to enter sleep mode again. Accordingly, the active operation time is within about 3%, and it waits in the sleep mode for more than 97% of the time.

When an object is detected, a large amount of power is needed instantaneously to operate LED display, BEEP sound output, switch contact output, etc., so the voltage is charged through the capacitor charging unit 70 .

Capacitor charging normally charges the capacitor through forward diode when the switch is in the off (open) state. When an object is detected, LED output, BEEP sound output, etc. are selectively operated, and when the switch is turned on (short-circuited), the switch When power is not supplied from the contact point 300, power is supplied from the capacitor to maintain the output state (LED, BEEP, and switch common).

In addition, a sensing distance adjusting unit for adjusting the sensing distance may be further included.

And it is configured to set the selection of using external power for BEEP sound ON/OFF with DIP switch.

4 is a flowchart for explaining a method of operating the non-contact type door control device according to the first embodiment of the present invention.

As shown in FIG. 4, the control unit 140 turns on the carrier in the infrared transmitter 40 when the set time comes (at count 0) and (S100) for the operation method of the non-contact type door control device according to the first embodiment of the present invention. ), when infrared rays are received (S110), the count is incremented for a preset time (S120). That is, if the infrared carrier is received during the carrier on time, the infrared carrier is continuously maintained.

When the set time count is completed (S130), since a normal object (including hand, human body) is detected, the LED display of the LED display unit 30 is output (S140), a BEPP sound is output (S150), and a switch contact is output ( S160). Accordingly, the door is opened and the sleep mode is entered for a preset time (eg, 250 ms) (S170). Also, even when the manual control button is input (S180), the switch contact is output (S160), the door is opened, and the sleep mode is entered after the switch contact is output.

On the other hand, when the carrier is turned on in the infrared ray transmitter 40 (S100), if infrared rays are not received, it enters the sleep mode for a preset time (eg, 250 ms) (S170).

In addition, when infrared rays are received (S110) and the count is increased (S120), when the infrared carrier is turned off in a state where the count is not completed (S190), if infrared rays are not received depending on whether infrared rays are received, the infrared carrier is turned on again (S100) , when infrared rays are received, it enters the sleep mode for a preset time (eg, 250 ms) (S170). That is, the received infrared rays when the carrier is turned off are infrared rays from sunlight or lighting, so it returns to the power saving mode.

5 is a flowchart for explaining a method of operating a non-contact type door control device according to a second embodiment of the present invention.

5, the control unit 140 turns on the carrier from the infrared transmitter 40 when the set time comes (at count 0) and (S300) ), when infrared rays are received (S310), the count is incremented for a preset time (S320). That is, if the infrared carrier is received during the carrier on time, the infrared carrier is continuously maintained.

If the set time count is not continuous (when completed) (S330), the LED display of the LED display unit 30 is output (S340), as a BEPP sound is output (S350), because a normal object (including hand, human body) is detected (S350), the switch A contact is output (S360). Accordingly, the door is opened, and the sleep mode is entered for a preset time (eg, 250 ms) (S370). Also, even when the manual control button is input (S380), the switch contact is output (S360), the door is opened, and the sleep mode is entered after the switch contact is output.

On the other hand, when the carrier is on from the infrared infrared transmitter 40 (S300), if infrared rays are not received, it enters the sleep mode for a preset time (eg, 250 ms) (S370).

In addition, infrared rays are received (S310) and the count is increased (S320), but when the infrared carrier is off (S390) in a state where the count is continued (S390), when infrared rays are received, it is in a sleep mode for a preset time (for example, 250 ms) ( S370). If the infrared rays are not received, the infrared carrier is turned on (S300). That is, the received infrared rays when the carrier is turned off are infrared rays from sunlight or lighting, so it returns to the power saving mode.

Although the present invention has been described with the above examples, the present invention is not necessarily limited to these examples, and various modifications may be made within the scope without departing from the technical spirit of the present invention. Therefore, the examples disclosed in the present invention are not intended to limit the technical spirit of the present invention, but to explain, and the scope of the technical spirit of the present invention is not limited by these examples. The protection scope of the present invention should be construed by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

10: manual control button 20: fixing screw groove
30: LED display unit 40: infrared transmitter
50: infrared receiver 60: BEEP buzzer
70: capacitor charging part 80: switch output part
90: bridge circuit 100: non-contact door control device
110: BEEP sound setting unit 120: BEEP buzzer
130: external power switch 140: control unit
200: external power 300: switch contact

Claims (7)

A capacitor charging unit 70 for supplying power required to the door control device 100 for controlling a non-contact type door as it is charged in advance by receiving an external power source 200 so that the door control device 100 can be operated without power;
a bridge circuit unit 90 composed of a two-wire non-polar diode bridge circuit to be installed regardless of polarity when the door control device 100 for controlling the non-contact type door is installed;
A manual control button 10 configured to forcibly unlock the door when pressed for a preset time. When pressed for a preset time, a manual control button 10 configured to forcibly open the door;
LED display unit 30 that emits light when detecting a hand, an object, or a human body on a non-contact door;
Infrared transmission and reception operation to detect a hand, object, or human body, but the infrared transmitter 40 that transmits with a carrier frequency of 38KHz and a filter configured to pass only the carrier frequency of 38KHz so as not to be affected by external light receiving unit 50;
a switch output unit 80 for outputting a signal for opening a door when a hand, an object, or a human body is detected;
BEEP buzzer 120 for outputting a BEEP sound;
an external power switch 130 used to select the use of the external power source 200;
BEEP sound setting unit 110 for setting the BEEP sound on/off;
a switch contact 300 connected to the door and receiving driving power from a power source for driving the door;
The manual control button 10, LED display unit 30, infrared transmitter 40, infrared receiver 50, capacitor charging unit 70, switch output unit 80, bridge circuit unit 90 and BEEP buzzer 120 ) the control unit 140 for controlling;
The selection of using the external power source 200 is a door control device 100 configured to be set with a DIP switch,
The manual control button 10 of the door control device 100 is configured on one side of a rectangular or rectangular body, and a plurality of fixing screw grooves 20 are configured at four corners of the front of the body, and the LED display unit 30 and the infrared transmitter 40 and the infrared receiver 50 are configured in the center of the main body, and in the lower part of the main body, the BEEP buzzer hole 60 through which the BEEP sound of the BEEP buzzer 120 is output and a variable resistor. A sensing distance adjusting device for adjusting the sensing distance is configured,
The door control device 100 is driven by power from a power source for driving the door,
It operates as a two-wire non-polar diode bridge circuit of the bridge circuit unit 90 and a capacitor charging circuit,
The door control device 100 waits in a sleep mode state, wakes up every 1/4 second preset, detects the presence of a hand, an object, or a human body within a few mS, and repeats the operation to enter the sleep mode again, The non-contact door control device, characterized in that the active operation time is about 3%, and waits in the sleep mode for 97% of the time.
delete delete delete delete A method of operating the non-contact door control device according to claim 1,
The control unit 140, when the set time is reached, the carrier is turned on in the infrared transmitter 40 (S100), and when the infrared rays are received (S110), incrementing the count for a preset time (S120);
When the set time count is completed (S130), since it is a normal object detection, the LED display of the LED display unit 30 is output (S140), the BEPP sound is output (S150), the switch contact is output (S160), the door is opened , entering the sleep mode for a preset time (S170); and
When the carrier is on from the infrared infrared transmitter 40 (S100), if the infrared rays are not received, it enters the sleep mode for a preset time (S170), the infrared rays are received (S110), and the count is increased (S120), When the infrared carrier is turned off in a state where the count is not completed (S190), if infrared is not received depending on whether infrared is received, the infrared carrier is turned on again (S100), and when infrared is received, sleep mode for a preset time (S170) including;
It wakes up every 1/4 second preset to detect the presence of a hand, object, or human body within a few mS, and repeats the operation to enter sleep mode again, but the active operation time is about 3%, and for 97% of the time Standby in sleep mode,
Even when a separate manual control button is input (S180), the switch contact is output (S160), the door is opened, and after the switch contact is output, the step of entering the sleep mode (S170); operation method. delete

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