CN115028232A - Intelligent induction ultraviolet sterilization system - Google Patents
Intelligent induction ultraviolet sterilization system Download PDFInfo
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- CN115028232A CN115028232A CN202210782235.5A CN202210782235A CN115028232A CN 115028232 A CN115028232 A CN 115028232A CN 202210782235 A CN202210782235 A CN 202210782235A CN 115028232 A CN115028232 A CN 115028232A
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- 238000004659 sterilization and disinfection Methods 0.000 title claims abstract description 78
- 230000006698 induction Effects 0.000 title claims abstract description 69
- 230000001954 sterilising effect Effects 0.000 title claims abstract description 38
- 239000003990 capacitor Substances 0.000 claims description 56
- 238000001914 filtration Methods 0.000 claims description 13
- 230000000249 desinfective effect Effects 0.000 claims description 11
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- 230000002070 germicidal effect Effects 0.000 claims description 7
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/32—Details relating to UV-irradiation devices
- C02F2201/326—Lamp control systems
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Abstract
The invention discloses an intelligent induction ultraviolet sterilization system which adopts a mature CMOS process, fully utilizes a digital-analog mixing technology, and simultaneously integrates a microwave transceiver, a radar intermediate frequency amplification circuit, a signal processor and the like on a single chip; the chip integrates the LDO and adopts an ultra-low power consumption architecture, and because the power consumption is low and the wide voltage is supported, the power supply scheme directly adopts a battery for power supply and keeps a long-time standby state; the chip is internally integrated with a signal processor which can directly output induction control signals, and a complete microwave induction sensor can be formed by matching a small number of components on the periphery; the manual control can be reduced, when a person enters the detection range of the device, the microwave detector works to light the lamp, and when the person leaves the detection range, the lamp is automatically turned off.
Description
Technical Field
The invention relates to the technical field of sterilization and disinfection, in particular to an intelligent induction ultraviolet sterilization system.
Background
The ultraviolet disinfection equipment is a disinfection device which utilizes a high-intensity ultraviolet germicidal lamp to irradiate and destroy the internal structures of DNA (deoxyribonucleic acid) of bacteria and viruses so as to kill pathogenic microorganisms in water, and the ultraviolet germicidal lamp is commonly used for indoor air disinfection and equipment surface disinfection. At the same time of disinfection and sterilization of common ultraviolet disinfection equipment in the market at present, due to the fact that the radiated ultraviolet energy is large, if no protective measures are taken, the common ultraviolet disinfection equipment is extremely easy to damage human bodies. It is necessary to use the ultraviolet ray sterilizing apparatus in an unmanned state to prevent ultraviolet rays from being irradiated to the naked eyes and skin of a person for a long time. Since ultraviolet rays are harmful to humans, direct irradiation of humans should be avoided. The existing ultraviolet disinfection lamp is generally directly lightened after an operator turns on, and the operator withdraws immediately; or the lamp is lightened after the operator is started and delays for a certain time, so that the operator can withdraw conveniently. The first mode can bring operating personnel to be directly exposed to ultraviolet rays, the second mode can have the condition that the time delay is up but the operating personnel may not evacuate, and the operating personnel also have the possibility of being directly exposed to the ultraviolet rays, so that the health of the operating personnel is harmed. Further, if a person enters a place where the ultraviolet lamp is being turned on, the person is likely to be irradiated by the ultraviolet lamp, and even if the ultraviolet lamp is immediately turned off, the person is irradiated by ultraviolet rays or the like in a short time, which may cause harm to the health of the person.
Therefore, the existing ultraviolet disinfection equipment generally realizes on-off control in a remote control or voice control mode, so that a human body can keep a certain distance from the ultraviolet disinfection equipment as much as possible when controlling the ultraviolet disinfection equipment, and the damage of ultraviolet rays to the human body is reduced or avoided. However, the remote control or voice control method has the problem that the ultraviolet disinfection equipment is interrupted or the sterilization process is ended in advance due to the interference of the external environment, and the expected effect cannot be achieved. Meanwhile, the ultraviolet disinfection equipment is forgotten to be turned off or is turned on by mistake due to the external environment, so that accidental injury is caused to people.
The existing ultraviolet disinfection lamp does not have the human body detection function generally. One possible approach is to add a passive infrared detector. However, the passive infrared detector in the prior art has a narrow detection angle range, is easy to cause the problem of missed detection, and cannot effectively turn off the ultraviolet disinfection lamp when people mistakenly enter the ultraviolet disinfection lamp, thereby causing potential safety hazards.
In summary, the current uv disinfection apparatus faces the following difficulties: 1) the monitoring range and the distinguishing capability of the control system to the object; 2) the control system makes correct judgment on the environmental change and gives feedback and emergency treatment; 3) how to reasonably and effectively install the disinfection and sterilization system in various public places.
Disclosure of Invention
The invention aims to provide an intelligent induction ultraviolet sterilization system which can automatically turn on and off a lamp, avoids the hidden danger of ultraviolet light damaging human bodies, has high sanitation degree, can be used in application occasions with high sanitation requirements, and can effectively solve various interference technical problems.
A disinfecting lamp control apparatus, comprising:
the microwave induction circuit is used for detecting the human body displacement distance in the external environment in real time to obtain an induction signal;
the control circuit is connected with the microwave sensing circuit and used for generating an output signal when the sensing signal indicates that the human body displacement exists;
the sterilizing lamp driving circuit is connected with the control circuit and used for controlling the switch of the sterilizing lamp according to the output signal;
the power supply circuit is respectively connected with the control circuit and the sterilizing lamp driving circuit and is used for respectively providing electric power for the control circuit and the sterilizing lamp driving circuit;
the input end and the output end of the microwave induction circuit are respectively connected with the first input end and the first output end of the control circuit, the input end and the output end of the power supply circuit are respectively connected with the second input end and the second output end of the control circuit, and the input end of the sterilizing lamp driving circuit is connected with the third output end of the control circuit.
Above-mentioned disinfection lamp control device, the control circuit includes:
the micro-control chip is preset with a plurality of control pins, the working voltage of the micro-control chip is 2.5-4.8V, the working current is 50-1350 uA, the working frequency is 10.5-10.55 GHz, and the micro-control chip (31) is respectively connected with the power supply circuit, the control circuit, the microwave detection circuit and the sterilizing lamp driving circuit through the plurality of control pins;
and the crystal oscillator is connected with the micro control chip through one control pin and is used for providing clock frequency for the micro control chip.
In the above apparatus for controlling a disinfecting lamp, the microwave induction circuit comprises:
the microwave induction antenna is used for receiving microwave signals;
the capacitance unit is connected with the microwave induction antenna and used for filtering and outputting the microwave signal;
the amplifying unit is connected with the capacitor unit and used for amplifying and outputting the filtered microwave signals;
and the filtering component is connected with the output of the amplifying unit and is used for filtering and outputting the amplified microwave signal.
In the above control device of the disinfection lamp, the amplifying unit includes a resistor R21, a resistor R22, a transistor, a resistor R23, a resistor R24, and a capacitor C21;
the gate of the transistor is connected with the capacitor unit, the resistor R1 is connected between the power circuit and the gate, the resistor R22 is connected between the gate and the ground, the resistor R23 is connected between the power circuit and the first conducting end of the transistor, the resistor R24 is connected between the second conducting end of the transistor and the ground, the capacitor C21 is connected in parallel with the resistor R24, and the second conducting end of the transistor outputs the amplified microwave signal.
In the above control device of the disinfecting lamp, the disinfecting lamp driving circuit includes a signal receiver electrically connected to the control circuit, and is configured to receive an operation signal for switching the operating mode of the disinfecting lamp, and switch the operating mode of the disinfecting lamp according to the operation signal.
In the above control device of the disinfecting lamp, the power circuit comprises a battery assembly and a charging circuit:
the battery assembly is used for directly providing power for the control circuit and the sterilizing lamp driving circuit;
the charging circuit is used for being connected with a USB power interface through a charging chip to input and charge, and the output end of the charging chip is connected with the control pin of the micro control chip.
In the above control device of the disinfection lamp, the charging circuit comprises the charging chip IC2 and the USB interface, the USB interface is used for externally connecting a charging wire, an output pin VBUS of the USB interface is connected with an input pin VCC of the charging chip IC2, the output pin VBUS of the USB interface and the output pin BAT of the charging chip IC2 are grounded through a capacitor C4, the charging circuit comprises a resistor R2, a resistor R3, a resistor R4, a capacitor C4, a light emitting diode G, a light emitting diode R and a capacitor C5, the output ends of the resistor R6, the light emitting diode G, the light emitting diode R and the resistor R5 are respectively connected with the control pin of the charging chip, the output ends of the capacitor C4 and the resistor R1 are respectively connected with the input end of the charging chip, the output end of the charging chip is connected with the control pin of the micro control chip through a capacitor C1 and a capacitor C2, and the resistor R1 and the capacitor C1 are both grounded.
An intelligent induction ultraviolet sterilization system comprises the disinfection lamp control device, a control unit, a wireless communication module, a user interface unit, an ultraviolet light-emitting unit and a power supply unit; the user interface unit is in signal connection with the control unit and is used as the input and the output of the control unit; the ultraviolet light-emitting unit is in signal connection with the control unit and is used as the output of the control unit; and the wireless communication module is in signal connection with the mobile phone terminal APP.
In the above intelligent induction ultraviolet sterilization system, the control unit comprises a signal acquisition processing module, a main control module, a timing module and a storage module; the signal acquisition processing module is used for user operation information input by the user interface unit; the main control module is used for receiving all input information, judging the current scene, correspondingly controlling the on-off of the ultraviolet light-emitting unit and outputting information to be displayed to the user interface unit; the timing module provides timing and clock functions for the control unit; the storage module is used for storing information.
In the above intelligent induction ultraviolet sterilization system, the user interface unit includes a switch module, a time setting module and a display device; the switch module is used for opening and closing the ultraviolet disinfection lamp by an operator, the time setting module is used for setting disinfection time and delay time by the operator, and the display device is used for displaying the current working state of the ultraviolet lamp and other information needing to be displayed to the operator.
The technical scheme has the following advantages or beneficial effects:
the intelligent induction ultraviolet sterilization system adopts a mature CMOS process, fully utilizes a digital-analog hybrid technology, simultaneously integrates a microwave transceiver, a radar intermediate frequency amplification circuit, a signal processor and the like on a single chip, is a fully integrated SOC, and has good consistency and ultrahigh cost performance compared with the traditional radar induction module; because the self-adaptive calibration algorithm is integrated on the chip, various interference problems can be effectively solved, and the reliability and the practicability of the sensor are greatly improved; the chip integrates the LDO and adopts an ultra-low power consumption architecture, and because the power consumption is low and the wide voltage is supported, the power supply scheme directly adopts a battery for power supply and keeps a long-time standby state; the chip is internally integrated with a signal processor which can directly output induction control signals, and a small number of components are matched at the periphery of the chip to form a complete microwave induction sensor; the manual control can be reduced, when a person enters the detection range of the device, the microwave detector works to light the lamp, and when the person leaves the detection range, the lamp is automatically turned off. The device has strong anti-interference capability, is hardly interfered by external environmental factors such as wind, heat and the like, does not shorten the sensing distance along with the prolonging of the service time, and really realizes a reliable mobile sensor. The device has the characteristics of automatic random time delay, automatic photometry, full-automatic induction and the like, and has no stroboflash.
Drawings
FIG. 1 is a schematic view of a disinfecting lamp control device according to the present invention;
FIG. 2 is a schematic diagram of a microwave sensing control arrangement of the present invention;
FIG. 3 is a schematic circuit diagram of a disinfecting lamp control device of the present invention;
FIG. 4 is a circuit schematic of the sterilizing lamp driver circuit of the present invention;
FIG. 5 is a circuit schematic of the charging circuit of the present invention;
FIG. 6 is a circuit schematic of the control circuit of the present invention;
fig. 7 is a schematic structural diagram of an intelligent induction ultraviolet sterilization system according to the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Referring to fig. 1 to 7, a control device for a disinfecting lamp includes:
the microwave induction circuit 2 is used for detecting the human body displacement distance in the external environment in real time to obtain an induction signal;
the control circuit 3 is connected with the microwave induction circuit 2 and used for generating an output signal when the induction signal indicates that the human body displacement exists;
the sterilizing lamp driving circuit 4 is connected with the control circuit 3 and used for controlling the on-off of the sterilizing lamp according to the output signal;
the power circuit 5 is respectively connected with the control circuit 3 and the disinfection lamp driving circuit 4 and is used for respectively providing power for the control circuit 3 and the disinfection lamp driving circuit 4;
the input end and the output end of the microwave induction circuit 2 are respectively connected with the first input end and the first output end of the control circuit 3, the input end and the output end of the power supply circuit 5 are respectively connected with the second input end and the second output end of the control circuit 3, and the input end of the sterilizing lamp driving circuit 4 is connected with the third output end of the control circuit 3.
The microwave induction circuit 2 is used for detecting the human body displacement condition in the detection range in real time to obtain an induction signal and sending the induction signal to the control circuit 3. After receiving the sensing signal, the control circuit 3 firstly analyzes the sensing signal: comparing the induction signal with a preset threshold value, and starting the disinfection lamp when the induction signal is smaller than the preset threshold value; and when the induction signal is not less than the preset threshold value, the disinfection lamp is not started.
Further, in a preferred embodiment of the control device of the disinfection lamp according to the present invention, the control circuit 3 includes:
the micro control chip 31 is preset with a plurality of control pins, the working voltage of the micro control chip 31 is 2.5-4.8V, the working current is 50-1350 uA, the working frequency is 10.5-10.55 GHz, and the micro control chip 31 is respectively connected with the power circuit 5, the control circuit 3, the microwave detection circuit 2 and the disinfection lamp driving circuit 4 through the plurality of control pins;
and the crystal oscillator 32 is connected with the micro control chip 31 through one control pin and used for providing clock frequency for the micro control chip 31.
The first micro control chip adopts a mature CMOS process, fully utilizes a digital-analog hybrid technology, simultaneously integrates a microwave transceiver, a radar intermediate frequency amplification circuit, a signal processor and the like on a single chip, is a fully integrated SOC, and has good consistency and ultrahigh cost performance compared with the traditional radar sensing module; the chip is defaulted to work in a frequency band of 10.5 GHz-10.55 GHz, the frequency is flexible and configurable, and various interference problems can be effectively solved due to the integration of the self-adaptive calibration algorithm on the chip, so that the reliability and the practicability of the sensor are greatly improved; the first micro control chip 31 integrates the LDO and adopts an ultra-low power consumption architecture, and because the power consumption is low and the wide voltage is supported, the power supply scheme directly adopts a battery for power supply and keeps a long-time standby state; the chip is internally integrated with a signal processor, can directly output induction control signals, and is matched with a small number of components at the periphery to form a complete microwave radar induction sensor.
The working principle is as follows: microwave signals generated inside the chip are amplified and radiated out through an antenna, the signals are reflected when encountering objects in the air, when the objects are in a motion state, a certain frequency difference exists between the reflected signals and the transmitted signals, namely Doppler effect, the received reflected signals and the transmitted signals are mixed to obtain corresponding intermediate frequency signals, and the intermediate frequency signals are analyzed to reversely deduce the motion information of the objects, so that the sensing function is realized.
Further, in a preferred embodiment of the control device of the disinfection lamp according to the present invention, the microwave sensing circuit 2 comprises:
a microwave induction antenna 21 for receiving microwave signals;
the capacitor unit 22 is connected with the microwave induction antenna 21 and used for filtering and outputting the microwave signal;
the amplifying unit 23 is connected with the capacitor unit 22, and is used for amplifying and outputting the filtered microwave signal;
and the filtering component 24 is connected with the output of the amplifying unit 23, and is used for filtering and outputting the amplified microwave signal.
Further, in a preferred embodiment of the control device of the disinfection lamp according to the present invention, the microwave induction antenna 21 includes an antenna, a capacitor C2, a capacitor C9 and an inductor L1, an output end of the capacitor C2 is connected to an input end of the antenna, an output end of the antenna is connected to an input end of the capacitor C9, an input end of the capacitor C2 and an output end of the capacitor C9 are respectively connected to a control pin of the micro control chip 31, an output end of the capacitor C9 is connected to the inductor L1, and both the antenna and the inductor L1 are grounded.
Further, in a preferred embodiment of the control device of the disinfection lamp according to the present invention, the amplifying unit 23 includes a resistor R21, a resistor R22, a transistor, a resistor R23, a resistor R24, and a capacitor C21;
the gate of the transistor is connected with the capacitor unit, the resistor R1 is connected between the power circuit 5 and the gate, the resistor R22 is connected between the gate and the ground, the resistor R23 is connected between the power circuit 5 and the first conducting end of the transistor, the resistor R24 is connected between the second conducting end of the transistor and the ground, the capacitor C21 is connected in parallel with the resistor R24, and the second conducting end of the transistor outputs the amplified microwave signal.
Further, in a preferred embodiment of the control device of the disinfection lamp according to the present invention, the disinfection lamp driving circuit 4 comprises a signal receiver electrically connected to the control circuit 3 for receiving an operation signal for switching the operation mode of the disinfection lamp, and the operation mode of the disinfection lamp is switched according to the operation signal.
Further, in a preferred embodiment of the control device of the disinfection lamp according to the present invention, the power circuit 5 comprises a battery pack and charging circuit 51:
the battery assembly is used for directly providing power for the control circuit 3 and the sterilizing lamp driving circuit 4;
the charging circuit 51 is used for connecting a USB power interface through a charging chip for inputting charging, and the output end of the charging chip is connected with the control pin of the micro control chip 31.
Further, in a preferred embodiment of the control device of the disinfection lamp of the present invention, the charging circuit 51 includes a charging chip IC2 and a USB interface, the USB interface is used for externally connecting a charging wire, an output pin VBUS of the USB interface is connected to an input pin VCC of the charging chip IC2, the output pin VBUS of the USB interface and an output pin BAT of the charging chip IC2 are grounded through a capacitor C4, the charging circuit 51 includes a resistor R2, a resistor R3, a resistor R4, a capacitor C4, a light emitting diode G, a light emitting diode R, and a capacitor C5, output terminals of the resistor R6, the light emitting diode G, the light emitting diode R, and the resistor R5 are respectively connected to a control pin of the charging chip, output terminals of the capacitor C4 and the resistor R1 are respectively connected to an input terminal of the charging chip, an output terminal of the charging chip is connected to a control pin of the micro-control chip 31 through a capacitor C1 and a capacitor C2, the resistor R1 and the capacitor C1 are both grounded.
In another embodiment of the present invention, the control circuit 3 includes:
the first micro control chip 31 is preset with a plurality of control pins, the working voltage of the first micro control chip 31 is 2.7-5V, the working current is 65-80 uA, the working frequency is 5725-5875 MHz, and the first micro control chip 31 is respectively connected with the power supply circuit 5, the control circuit 3, the photosensitive detection circuit, the microwave detection circuit 2 and the sterilizing lamp driving circuit 4 through the plurality of control pins;
and the crystal oscillator 32 is connected with the first micro control chip 31 through one control pin and used for providing a clock frequency for the first micro control chip 31.
The first micro control chip adopts a mature CMOS process, fully utilizes a digital-analog hybrid technology, simultaneously integrates a microwave transceiver, a radar intermediate frequency amplification circuit, a signal processor and the like on a single chip, is a fully integrated SOC, and has good consistency and ultrahigh cost performance compared with the traditional radar sensing module; the chip is defaulted to work in a 5.8GHz ISM frequency band, the frequency is flexible and configurable, and various interference problems can be effectively solved due to the integration of the self-adaptive calibration algorithm on the chip, so that the reliability and the practicability of the sensor are greatly improved; the first micro-control chip integrates the LDO and adopts an ultra-low power consumption architecture, and because the power consumption is low and the wide voltage is supported, the power supply scheme directly adopts a battery for power supply and keeps a long-time standby state; the chip is internally integrated with a signal processor, can directly output induction control signals, and is matched with a small number of components at the periphery to form a complete microwave radar induction sensor.
Further, in a preferred embodiment of the control device of a disinfection lamp according to the present invention, the photosensitive detection circuit includes a photosensitive resistor VSR, a resistor R10 and a capacitor C11, an input terminal of the photosensitive resistor VSR is connected to an output terminal of the capacitor C11, an output terminal of the photosensitive resistor VSR is connected to an input terminal of the resistor R10, an input terminal of the capacitor C11 and an output terminal of the resistor R10 are respectively connected to the control pin of the first micro-control chip 31, and both the photosensitive resistor VSR and the capacitor C11 are grounded.
Further, in a preferred embodiment of the control device of the disinfection lamp according to the present invention, the microwave induction circuit 2 includes:
a microwave induction antenna 21 for receiving microwave signals;
the capacitor unit 22 is connected with the microwave induction antenna 21 and used for filtering and outputting the microwave signal;
the amplifying unit 23 is connected with the capacitor unit 22, and is used for amplifying and outputting the filtered microwave signal;
and the filtering component 24 is connected with the output of the amplifying unit 23, and is used for filtering and outputting the amplified microwave signal.
Further, in a preferred embodiment of the control device of the disinfection lamp according to the present invention, the microwave induction antenna 21 includes an antenna, a capacitor C2, a capacitor C9 and an inductor L1, an output end of the capacitor C2 is connected to an input end of the antenna, an output end of the antenna is connected to an input end of the capacitor C9, an input end of the capacitor C2 and an output end of the capacitor C9 are respectively connected to a control pin of the first micro-control chip 31, an output end of the capacitor C9 is connected to the inductor L1, and both the antenna and the inductor L1 are grounded.
Further, in a preferred embodiment of the control device of the disinfection lamp of the present invention, the amplifying unit 23 includes a resistor R21, a resistor R22, a transistor, a resistor R23, a resistor R24, and a capacitor C21;
the gate of the transistor is connected with the capacitor unit, the resistor R21 is connected between the power circuit 24 and the gate, the resistor R22 is connected between the gate and the ground, the resistor R23 is connected between the power circuit 5 and the first conducting end of the transistor, the resistor R24 is connected between the second conducting end of the transistor and the ground, the capacitor C21 and the resistor R24 are connected in parallel, and the second conducting end of the transistor outputs the amplified microwave signal. The resistor R23 and the resistor R24 are adjustable resistors for adjusting the gain of the amplifying unit 23.
The amplifying unit 23 can amplify the microwave signal, and when an object is detected to be moving, the generated microwave signal is amplified by the amplifying unit 23 with controllable amplification factor, and noise signals are filtered. Because the resistor R23 and the resistor R24 are both high-precision adjustable resistors, corresponding amplification effects can be performed on different microwave signals. The adjustable amplifier can play a role in adjusting gain at this time under the assumption that microwave signals are extremely weak.
The circuit design idea of the microwave sensing control device is that a microwave sensing circuit module is added on the basis of a traditional LED driving power supply, wherein the sensor module is a moving object detector designed by utilizing the Doppler effect principle, the sensed microwave (physical signal) is converted into an electric signal (current), then the electric signal is filtered and amplified through an amplifying circuit with adjustable amplification factor and then fed back to a control circuit 2, and the control circuit 2 analyzes the signal and can be used for controlling a disinfection lamp.
The front surface of the microwave sensing control device is composed of a radar sensing chip, a transceiving antenna, a contact pin and the like, the back surface of the microwave sensing control device is a reference ground of a microwave circuit and an antenna, the influence of the transceiving isolation degree on the radar bottom noise is large, the isolation degree between the transceiving antennas is considered particularly during layout, electromagnetic field simulation needs to be carried out on the miniaturized double-fed antenna aiming at the antenna isolation degree, in addition, a double-antenna form can be adopted under the condition that the size is allowed, and the distance between the transceiving antennas is pulled as far as possible to ensure the optimization of the antenna performance.
The working principle is as follows: microwave signals generated inside the chip are amplified and radiated out through an antenna, the signals are reflected when encountering objects in the air, when the objects are in a motion state, a certain frequency difference exists between the reflected signals and the transmitted signals, namely Doppler effect, the received reflected signals and the transmitted signals are mixed to obtain corresponding intermediate frequency signals, and the intermediate frequency signals are analyzed to reversely deduce the motion information of the objects, so that the sensing function is realized.
During operation, the lamp lights for 2S, then extinguishes, and enters an induction mode: when someone moves within the sensing range, the lamp will light up again. And 2S continuously, the lamp is turned off when no people are sensed. Induction range: when the hanging height is 3m, the sensing radius is 8-9m, and the sensing ambient brightness is more than 15 Lux.
The utility model provides a disinfection lamp uses amplifier circuit to amplify the filtering action to the microwave, makes under extreme place and the extreme condition, and faint microwave signal is unlikely to lose and can't be detected, has increased the stability and the reliability that detect, compares the reliability with traditional infrared induction feedback circuit and is higher. In addition, the microwave induction can penetrate through partial non-metal object induction, is particularly suitable for being hidden and installed in the lamp, is wide in application range, and can be matched with various common lamps to form the microwave induction lamp.
An intelligent induction ultraviolet sterilization system comprises the disinfection lamp control device, and further comprises a control unit 11, a wireless communication module 13, a user interface unit 12, an ultraviolet light-emitting unit 14 and a power supply unit 15; the user interface unit 12 is in signal connection with the control unit 11 as an input and an output of the control unit 11; the ultraviolet light emitting unit 14 is in signal connection with the control unit 11 and is used as the output of the control unit 11; and the wireless communication module 13 is in signal connection with a mobile phone terminal APP.
Further, in a preferred embodiment of the intelligent sensing ultraviolet sterilization system of the present invention, the control unit 11 includes a signal acquisition processing module, a main control module, a timing module, and a storage module; the signal acquisition processing module is used for user operation information input by the user interface unit 12; the main control module is used for receiving each input information, judging the current scene, correspondingly controlling the on-off of the ultraviolet light-emitting unit 14 and outputting the information to be displayed to the user interface unit 12; the timing module provides timing and clock functions for the control unit 11; the storage module is used for storing information.
Further, in a preferred embodiment of the intelligent induction ultraviolet sterilization system of the present invention, the user interface unit 12 includes a switch module, a time setting module and a display device; the switch module is used for opening and closing the ultraviolet disinfection lamp by an operator, the time setting module is used for setting disinfection time and delay time by the operator, and the display device is used for displaying the current working state of the ultraviolet lamp and other information needing to be displayed to the operator.
In conclusion, the intelligent induction ultraviolet sterilization system adopts a mature CMOS process, fully utilizes a digital-analog mixing technology, simultaneously integrates a microwave transceiver, a radar intermediate frequency amplification circuit, a signal processor and the like on a single chip, is a fully integrated SOC, and has good consistency and ultrahigh cost performance compared with the traditional radar induction module; because the self-adaptive calibration algorithm is integrated on the chip, various interference problems can be effectively solved, and the reliability and the practicability of the sensor are greatly improved; the chip integrates the LDO and adopts an ultra-low power consumption architecture, and because the power consumption is low and the wide voltage is supported, the power supply scheme directly adopts a battery for power supply and keeps a long-time standby state; the chip is internally integrated with a signal processor which can directly output induction control signals, and a small number of components are matched at the periphery of the chip to form a complete microwave induction sensor; the manual control can be reduced, when a person enters the detection range of the device, the microwave detector works to light the lamp, and when the person leaves the detection range, the lamp is automatically turned off. The device has strong anti-interference capability, is hardly interfered by external environmental factors such as wind, heat and the like, does not shorten the sensing distance along with the prolonging of the service time, and really realizes a reliable mobile sensor. The device has the characteristics of automatic random time delay, automatic photometry, full-automatic induction and the like, and has no stroboflash.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", and the like, which indicate orientations or positional relationships, are based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Claims (10)
1. A germicidal lamp control apparatus, comprising:
the microwave induction circuit (2) is used for detecting the human body displacement distance in the external environment in real time to obtain an induction signal;
the control circuit (3) is connected with the microwave induction circuit (2) and used for generating an output signal when the induction signal indicates that the human body displacement exists;
the sterilizing lamp driving circuit (4) is connected with the control circuit (3) and is used for controlling the switch of the sterilizing lamp according to the output signal;
the power supply circuit (5) is respectively connected with the control circuit (3) and the disinfection lamp driving circuit (4) and is used for respectively providing power for the control circuit (3) and the disinfection lamp driving circuit (4);
the input end and the output end of the microwave induction circuit (2) are respectively connected with the first input end and the first output end of the control circuit (3), the input end and the output end of the power supply circuit (5) are respectively connected with the second input end and the second output end of the control circuit (3), and the input end of the sterilizing lamp driving circuit (4) is connected with the third output end of the control circuit (3).
2. A disinfection lamp control device as claimed in claim 1, characterized in that said control circuit (3) comprises:
a micro control chip (31) with a plurality of control pins in advance, wherein the working voltage of the micro control chip (31) is 2.5-4.8V, the working current is 50-1350 uA, the working frequency is 10.5-10.55 GHz, and the micro control chip (31) is respectively connected with the power supply circuit (5), the control circuit (3), the microwave induction circuit (2) and the sterilizing lamp driving circuit (4) through the plurality of control pins;
and the crystal oscillator (32) is connected with the micro control chip (31) through one control pin and is used for providing clock frequency for the micro control chip (31).
3. A sterilamp control device according to claim 2, characterized in that said microwave induction circuit (2) comprises:
a microwave induction antenna (21) for receiving a microwave signal;
the capacitor unit (22) is connected with the microwave induction antenna (21) and is used for filtering and outputting the microwave signal;
the amplifying unit (23) is connected with the capacitor unit (22) and is used for amplifying and outputting the filtered microwave signals;
and the filtering component (24) is connected with the output of the amplifying unit (23) and is used for filtering and outputting the amplified microwave signal.
4. A disinfecting lamp control device as recited in claim 3, characterized in that said amplifying unit (23) comprises a resistor R21, a resistor R22, a transistor, a resistor R23, a resistor R24 and a capacitor C21;
the gate of transistor with the electric capacity unit is connected, resistance R1 is connected power supply circuit (5) with between the gate, resistance R22 is connected between gate and ground, resistance R23 is connected power supply circuit (5) with between the first conducting terminal of transistor, resistance R24 is connected between the second conducting terminal of transistor and ground, electric capacity C21 with resistance R24 is parallelly connected, the second conducting terminal of transistor outputs the microwave signal after the enlargeing.
5. A germicidal lamp control device as claimed in claim 2, characterized in that the germicidal lamp driving circuit (4) comprises a signal receiver electrically connected to the control circuit (3) for receiving an operating signal for switching the operating mode of the germicidal lamp, the operating mode of the germicidal lamp being switched in dependence on the operating signal.
6. A disinfection lamp control device as claimed in claim 2, characterised in that said power supply circuit (5) comprises a battery pack and charging circuit (51):
the battery assembly is used for directly providing power for the control circuit (3) and the disinfection lamp driving circuit (4);
the charging circuit (51) is used for being connected with a USB power interface through a charging chip to input and charge, and the output end of the charging chip is connected with a control pin of the micro control chip (31).
7. A disinfection lamp control device as claimed in claim 6, characterized in that said charging circuit (51) comprises a charging chip IC2 and a USB interface, said USB interface is used for connecting an external charging wire, an output pin VBUS of said USB interface is connected with an input pin VCC of said charging chip IC2, said output pin VBUS of said USB interface and an output pin BAT of said charging chip IC2 are connected with ground through a capacitor C4, said charging circuit (51) further comprises a resistor R2, a resistor R3, a resistor R4, a capacitor C4, a light emitting diode G, a light emitting diode R and a capacitor C5, outputs of said resistor R6, said light emitting diode G, said light emitting diode R and said resistor R5 are respectively connected with a control pin of said charging chip, outputs of said capacitor C4 and said resistor R1 are respectively connected with an input terminal of said charging chip, an output of said charging chip is connected with a control pin of said micro control chip (31) through a capacitor C1 and a capacitor C2, the resistor R1 and the capacitor C1 are both grounded.
8. An intelligent induction uv sterilization system comprising the disinfection lamp control device of claims 1-7, further comprising a control unit (11), a wireless communication module (13), a user interface unit (12), a uv light emitting unit (14) and a power supply unit (15); the user interface unit (12) is in signal connection with the control unit (11) as an input and an output of the control unit (11); the ultraviolet light-emitting unit (14) is in signal connection with the control unit (11) and is used as the output of the control unit (11); and the wireless communication module (13) is in signal connection with a mobile phone terminal APP.
9. The intelligent induction ultraviolet sterilization system according to claim 8, wherein the control unit (11) comprises a signal acquisition processing module, a main control module, a timing module, and a storage module; the signal acquisition processing module is used for user operation information input by the user interface unit (12); the main control module is used for receiving all input information, judging the current scene, correspondingly controlling the on-off of the ultraviolet light-emitting unit (14) and outputting information to be displayed to the user interface unit (12); the timing module provides timing and clock functions for the control unit (11); the storage module is used for storing information.
10. The intelligent induction uv sterilization system according to claim 9, wherein said user interface unit (12) comprises a switch module, a time setting module and a display device; the switch module is used for opening and closing the ultraviolet disinfection lamp by an operator, the time setting module is used for setting disinfection time and delay time by the operator, and the display device is used for displaying the current working state of the ultraviolet lamp and other information needing to be displayed to the operator.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210782235.5A CN115028232A (en) | 2022-07-05 | 2022-07-05 | Intelligent induction ultraviolet sterilization system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210782235.5A CN115028232A (en) | 2022-07-05 | 2022-07-05 | Intelligent induction ultraviolet sterilization system |
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| CN115028232A true CN115028232A (en) | 2022-09-09 |
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