CN213426132U - Go-out button combining infrared induction, capacitance induction and mechanical switch technology - Google Patents

Abstract

The utility model relates to a combine button of going out of infrared induction, electric capacity response, mechanical switch technique, a serial communication port, including antenna panel module and mainboard module, the mainboard module is connected to the antenna panel module, and the door control equipment is connected to the mainboard module, wherein: the main board module comprises an infrared sensing unit, a remote control unit, an MCU, a signal display unit, a relay, a power supply interface, a normally open end, a public end and a normally closed end; the antenna board module comprises a capacitive antenna and a mechanical button. The utility model discloses added the non-contact scheme, also had mechanical switch's function simultaneously. The utility model discloses infrared induction, these two kinds of schemes of electric capacity response have been combined simultaneously, make the more stable work of equipment. The remote control function is added, so that the non-contact can be realized, and the triggering can be carried out at a longer distance. The remote controller and the remote control module adopt encrypted communication, so that the safety and reliability of communication are ensured.

Description

Go-out button combining infrared induction, capacitance induction and mechanical switch technology

Technical Field

The utility model relates to a go out shift knob.

Background

At present, in an access control system in a public place, a mechanical structure is generally adopted as an exit switch button. While the technology of the non-contact type switch button is well developed, it is not suitable for use in public places. Since the contactless switch button needs to be constantly supplied with power, the access control system in a public place needs to cope with an emergency such as a power failure. Once power failure occurs, the non-contact switch button cannot work normally, and the switch button fails to work when the door is out of service, so that the non-contact switch button is not suitable for being used in public places.

The mechanical switch buttons have a disadvantage in that people must contact the mechanical switch buttons when operating the mechanical switch buttons, so that viruses or bacteria carried by the people are left on the mechanical switch buttons, and the mechanical switch buttons are infected when other people operate the contaminated mechanical switch buttons again.

Disclosure of Invention

The utility model aims at: provided is a door-out switch button having both a mechanical structure and a non-contact structure.

In order to achieve the above object, the technical scheme of the utility model provide a combine button of going out of infrared induction, electric capacity response, mechanical switch technique, a serial communication port, including antenna panel module and mainboard module, the mainboard module is connected to the antenna panel module, and mainboard module connects the gate equipment, wherein:

the main board module comprises an infrared sensing unit, an MCU, a signal display unit, a relay, a power supply interface, a normally open end, a public end and a normally closed end; the antenna plate module comprises a capacitive antenna and a mechanical button;

the power supply interface is connected with the voltage output end of the door control device, and the door control device supplies power to the infrared sensing unit, the remote control unit, the MCU and the signal display unit through the power supply interface; the input end of the relay is connected with the I/O port I of the MCU, the output end of the relay is connected with the normally open end, the public end and the normally closed end, meanwhile, the mechanical button is connected in parallel to the public end and the normally open end of the mainboard module, the normally open end, the public end and the normally closed end are connected to the door control signal input end of the door control equipment, when the relay is powered off or the mechanical button is not pressed down, the public end is conducted with the normally closed end, and after the relay is powered on or the mechanical button is pressed down, the public end is conducted with the normally open end;

the capacitance detection end of the MCU is connected with the signal output end of the capacitance antenna of the antenna plate module, and the MCU controls the relay to be powered on or powered off according to the signal given by the capacitance antenna;

the infrared sensing unit comprises an infrared transmitting circuit and an infrared receiving circuit, the infrared transmitting circuit is connected with a PWM signal output end of the MCU, the infrared receiving circuit is connected with a second I/O port of the MCU, and the MCU controls the relay to be powered on or powered off according to a signal given by the infrared receiving circuit.

Preferably, the motherboard module further includes a dial switch, and the dial switch is connected to the third I/O port of the MCU.

Preferably, the signal display unit comprises an LED lamp and a buzzer, the LED lamp is connected with the I/O port IV of the MCU, and the buzzer is connected with the I/O port V of the MCU.

Preferably, the mechanical buttons are N film buttons connected in parallel, N is larger than or equal to 1, and two ends of each film button are respectively connected to the public end and the normally open end.

Preferably, the mainboard module further comprises a remote control unit, a USART port of the MCU is connected with the remote control unit, and the MCU controls the relay to be powered on or powered off according to a signal given by the remote control unit.

Compared with the prior art, the utility model has the advantages of as follows:

1) compare with traditional mechanical switch, the utility model discloses added the non-contact scheme, personnel needn't contact equipment surface, reduced the chance that the bacterium propagated. The utility model discloses also have mechanical switch's function simultaneously, can guarantee equipment continuation work, safe and reliable during the outage.

2) Compare with the equipment of traditional single technique, the utility model discloses combined infrared induction, this two kinds of schemes of electric capacity response simultaneously, avoided infrared induction technique easily to receive the problem that the infrared light of environment kind influences, the problem that the electric capacity response easily receives the electrically conductive object influence of environment kind makes the more stable work of equipment.

3) The remote control function is added, so that the non-contact can be realized, and the triggering can be carried out at a longer distance. The remote controller and the remote control module adopt encrypted communication, so that the safety and reliability of communication are ensured.

Drawings

Fig. 1 is a schematic circuit diagram of the present invention.

Detailed Description

The present invention will be further described with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims.

As shown in fig. 1, the utility model provides a pair of the button of going out that combines infrared induction, electric capacity response, mechanical switch technique includes antenna panel module and mainboard module, and the mainboard module is connected to the antenna panel module, and current gating equipment is then connected to the mainboard module, is opened according to the relevant signal control door that the button of going out given by gating equipment.

The antenna board module comprises a capacitive antenna and a mechanical button.

The mainboard module includes infrared sensing unit, remote control unit, MCU, LED lamp, bee calling organ, dial switch, relay, power supply interface +12/24V, GND, the end NO of opening normally, public end COM, the end NC that closes normally.

And the signal output end of the capacitance antenna is connected to the capacitance detection end Capsense of the MCU. And an I/O port of the MCU is connected to an input end of the relay, an output end of the relay is connected to the normally-open end NO, the common end COM and the normally-closed end NC, and the normally-open end NO, the common end COM and the normally-closed end NC are connected to a gate control signal input end of the gate control equipment. When the relay is powered off, the common end COM and the normally closed end NC are conducted, and the door controlled by the door control device is closed at the moment. Based on above-mentioned structure for can realize opening of door based on the capacitive sensing principle. The capacitive sensing principle is based on the property that an inductive inductance exists between any two conductive objects. Particularly, the utility model provides an in the utility model provides a go out behind the switch on of button equipment, MCU passes through electric capacity sense terminal Capsense and can detect the capacitance value of a benchmark. When no object is close to the capacitive antenna, the change in the capacitance value detected by the MCU is small. When a conductive device (e.g., a human body) is close to the capacitive antenna, the capacitance value detected by the MCU changes greatly. When the change value exceeds the set threshold value, the MCU controls the buzzer to sound and controls the LED lamp to flicker, meanwhile, the MCU enables the relay to act after being electrified, the normally open end NO is conducted with the common end COM, and the door is controlled to be opened by the door control equipment.

The utility model discloses can also utilize infrared induction technology to realize opening of door. Particularly, the utility model discloses in, infrared sensing unit includes infrared transmitting circuit and infrared receiving circuit. The infrared transmitting circuit is connected with the PWM signal output end of the MCU, and the infrared receiving circuit is connected with the second I/O port of the MCU. The working principle of the infrared transmitting circuit is that the MCU outputs a PWM signal to enable the infrared light emitting diode to emit infrared light outwards. The infrared receiving circuit works on the principle that an infrared receiving tube receives infrared light and converts an optical signal into an electric signal. When the hand is close to the utility model provides a during going out button dead ahead, the infrared light of infrared emission circuit transmission is received by infrared receiving circuit after through the hand reflection, and MCU detects the change back of infrared receiving circuit signal of telecommunication, and control buzzer makes a sound and control the LED lamp and twinkle, and simultaneously, MCU makes the relay move after getting electricity, and the NO that will open end always switches on with public end COM, is opened by the gate control equipment control gate this moment.

The utility model discloses can also adopt mechanical switch to realize opening of door. Specifically, the mechanical button is connected in parallel to the common terminal COM and the normally open terminal NO of the motherboard module. In this embodiment, the mechanical buttons are 4 thin film buttons connected in parallel, and two ends of the thin film buttons are respectively connected to the common terminal COM and the normally open terminal NO. The membrane button is realized by utilizing the conductivity and stable rebound property of a metal dome (metal spring). Specifically, the snap dome is positioned above the golden finger of the conductive part on the PCB, and when the snap dome is pressed, the central point of the snap dome is concave downward and contacts with a circuit on the PCB, so that the circuit is conducted. When the utility model provides a go out the panel of button and pressed, as long as have a film button by corresponding pressing, make public end COM and open end NO switch on, open by the door control equipment control door this moment.

The utility model discloses in, MCU's USART port links to each other with the remote control unit, and the remote control unit uses with the remote controller that pairs together. Before use, the remote control unit and the remote controller need to be matched. A group of sequence codes is stored in the remote controller, and a code matching button is arranged on the remote control unit. Pressing the code matching button makes the remote control unit enter the code matching state, and pressing the remote controller will synchronize the serial code in the remote controller to the remote control unit.

The remote controller and the remote control unit use encrypted communication. When the remote controller is normally used, the remote controller encrypts the serial number and sends the encrypted serial number after being pressed. The remote control unit decrypts the received data after receiving the data, the MCU judges whether the received serial number is consistent with the stored serial number, if so, the buzzer is controlled to sound and the LED lamp is controlled to flicker, meanwhile, the MCU enables the relay to act after being electrified, the normally open end NO is conducted with the common end COM, and the door control device controls the door to be opened; if not, the utility model does not make any reaction.

The utility model discloses still include dial switch, dial switch with MCU's IO port three links to each other. Parameters can be set by the dial switch:

1) the working mode is as follows: capacitive sensing + mechanical switching; infrared induction and a mechanical switch; capacitive sensing + infrared sensing + mechanical switching; and (4) a mechanical switch.

2) The duration of time that the relay is opened is set.

3) And setting the distance of induction triggering. I.e. how far the hand is from the surface of the device can trigger the device.

The utility model discloses a non-contact scheme and mechanical scheme's combination is applicable to various service environment, has convenience, stability and security concurrently. The utility model discloses added non-contact's technique, when normal power supply, can use non-contact's mode, reduced public place unnecessary contact, reduced the chance that the bacterium propagated. When the power failure environment, a mechanical mode can be used, the equipment can also normally run under the power failure condition, and the safety and the reliability are ensured.

The utility model discloses a non-contact scheme adopts the scheme that infrared induction and electric capacity induction technique combined together. Traditional infrared sensing is affected by many factors, such as: the infrared light in the sunlight can cause false triggering, and the infrared light-emitting diode can be attenuated to influence the distance. The traditional capacitance sensing technology has certain requirements on the installation environment, and the large-area conductive material in the installation environment has great influence on the installation environment. By combining infrared and capacitance non-contact sensing technologies, the above-mentioned disadvantages can be avoided, and the device can work more stably.

Claims (5)

1. The utility model provides a combine button of going out of infrared induction, electric capacity response, mechanical switch technique which characterized in that, includes antenna panel module and mainboard module, and mainboard module is connected to the antenna panel module, and mainboard module connects the door control equipment, wherein:

the main board module comprises an infrared sensing unit, an MCU, a signal display unit, a relay, a power supply interface, a normally open end, a public end and a normally closed end; the antenna plate module comprises a capacitive antenna and a mechanical button;

the power supply interface is connected with the voltage output end of the door control device, and the door control device supplies power to the infrared sensing unit, the remote control unit, the MCU and the signal display unit through the power supply interface; the input end of the relay is connected with the I/O port I of the MCU, the output end of the relay is connected with the normally open end, the public end and the normally closed end, meanwhile, the mechanical button is connected in parallel with the public end and the normally open end of the mainboard module, the normally open end, the public end and the normally closed end are connected to the door control signal input end of the door control equipment, when the relay is powered off or the mechanical button is not pressed, the public end is conducted with the normally closed end, and after the relay is powered on or the mechanical button is pressed, the public end is conducted with the normally open end;

the capacitance detection end of the MCU is connected with the signal output end of the capacitance antenna of the antenna plate module, and the MCU controls the relay to be powered on or powered off according to the signal given by the capacitance antenna;

the infrared sensing unit comprises an infrared transmitting circuit and an infrared receiving circuit, the infrared transmitting circuit is connected with a PWM signal output end of the MCU, the infrared receiving circuit is connected with a second I/O port of the MCU, and the MCU controls the relay to be powered on or powered off according to a signal given by the infrared receiving circuit.

2. The exit button combining ir sensing, capacitive sensing, and mechanical switching technologies as claimed in claim 1, wherein said motherboard module further comprises a dial switch, said dial switch connected to said MCU I/O port three.

3. The exit button combining infrared sensing, capacitive sensing and mechanical switching technologies as claimed in claim 1, wherein said signal display unit comprises an LED lamp and a buzzer, the LED lamp is connected to the fourth I/O port of said MCU, and the buzzer is connected to the fifth I/O port of said MCU.

4. A going-out button combining IR sensing, capacitive sensing, mechanical switching technology as claimed in claim 1 wherein said mechanical buttons are N membrane buttons connected in parallel, N ≧ 1, both ends of each membrane button connected to said common terminal and said normally open terminal respectively.

5. The exit button combining ir sensing, capacitive sensing, and mechanical switching technologies as claimed in claim 1, wherein said motherboard module further comprises a remote control unit, said MCU has a USART port connected to said remote control unit, said MCU controls said relay to be powered on or powered off according to signals from said remote control unit.

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