CN201114893Y

CN201114893Y - Intelligent ultrasonic inductance lamp

Info

Publication number: CN201114893Y
Application number: CNU2007201083492U
Authority: CN
Inventors: 颜利军
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-04-17
Filing date: 2007-04-17
Publication date: 2008-09-10
Anticipated expiration: 2017-04-17

Abstract

The utility model provides an intelligent ultrasonic sense light which can detect the moving or static substances within the range that can be controlled by the intelligent ultrasonic sense light and generate corresponding actuated signal to control automatically turning on or shutting off a lighting fixture. The intelligent ultrasonic sense light comprises a power supply, a lighting fixture, an ultrasonic transducer, a singlechip control circuit and a bilateral amplifier. After being connected to the power supply, the ultrasonic transducer starts to work under the control of the singlechip control circuit and the bilateral amplifier and sends and receives sound waves outwards intermittently, when substance with certain volume is positioned within the special range that can be radiated by the ultrasonic transducer and moves a certain distance to result in position change of the substance, and the ultrasonic transducer is in the next accepting state, a time difference generates from sending and receiving ultrasonic signal together with the received signal in the last phase, the single chip controlled circuit disposes and confirms the time difference and then sends out control signal to control turning on and shutting off the lighting fixture.

Description

The intelligent ultrasonics sense light

Technical field

The utility model relates to the Based Intelligent Control sense light, relates in particular to a kind of intelligent ultrasonics sense light.

Background technology

Exist various forms of sense lights in the market, as touch light, acoustic control sense light, microwave induced lamp, thermal release electric infra-red ray sense light.Touch light must depend on human body proximity and touch and could open, and people must go to touch its touch point gropingly when using night like this, make troubles to the user.The acoustic control sense light must could be opened with the sound of certain decibel, like this if at dead of night, also can bring a lot of inconvenience to the user, influences other people's rest, and, if when the external sound existence is arranged, also be easy to generate misoperation.Microwave induced lamp is to utilize microwave module and loop antenna cooperating, because be as an oscillating element with loop antenna, must use bigger loop antenna, circuit ability starting of oscillation work, so just make the volume of microwave induced lamp not do very for a short time, also have microwave module also to be easy to be subjected to the interference of radio-frequency radiation and some metals.The thermal release electric infra-red ray sense light is disturbed by various thermals source, light source easily, and when the temperature of environment of living in and human body temperature are close, and surveys and sensitivity obviously descends, and also can cause malfunctioning in short-term sometimes.Another kind utilizes ultrasonic wave to respond to the sense light of control lighting, a kind of title that Patent Office of the People's Republic of China (PRC) announced on January 30th, 1991: ultrasonic sensing lamp, its notification number is 2070520U, its signal transmits and receives respectively and to adopt independent ultrasonic transmitter and the ultrasonic receiver that is provided with, and utilizes human body that hyperacoustic reflection echo is directly removed to control lighting.In entire work process, ultrasonic transmitter all is continuously to launch ultrasonic signal, and when object (as human body) is in the ultrasonic wave control range, no matter be to move or static, the ultrasonic sensing lamp all can open bright.There is following shortcoming in this sense light: the one, can't realize intelligent control, and can not judge correctly promptly whether the user needs lighting is opened or closed, and particularly important in the use of this function on indoor illumination light fitting.The 2nd, ultrasonic transmitter and ultrasonic receiver independently are set had both increased product cost, had also increased ultrasonic transmitter and ultrasonic receiver adjusting difficulty when mounted.

Summary of the invention

Technical problem to be solved in the utility model provides a kind of intelligent ultrasonics sense light, this intelligent ultrasonics sense light can be to do moving in the scope that can control at it or static object is surveyed, and produce corresponding induced signal and control the unlatching of lighting automatically or close.

For solving the problems of the technologies described above, the technical solution adopted in the utility model is: the intelligent ultrasonics sense light comprises power supply, lighting, ultrasonic transducer, single chip machine controlling circuit and two-way amplifier; Ultrasonic transducer is connected with single chip machine controlling circuit by two-way amplifier, and single chip machine controlling circuit is connected with lighting.

Work for being controlled under certain lightness environment, described intelligent ultrasonics sense light also comprises luminance detection circuit, luminance detection circuit provides power supply by power supply, luminance detection circuit links to each other with two-way amplifier with single chip machine controlling circuit, and output detection signal is given single chip machine controlling circuit and two-way amplifier, single-chip microcomputer is by processing and confirm back control lighting, and controls ultrasonic transducer work by single chip machine controlling circuit and two-way amplifier according to detection signal.When ambient brightness was higher than the luminance detection circuit set point, by the control of luminance detection circuit to single-chip microcomputer and two-way amplifier, the intelligent ultrasonics sense light will quit work automatically.

The beneficial effects of the utility model are: handle and computing by the information that single chip machine controlling circuit is produced in the air to ultrasonic wave, realized a kind of intelligent-induction control lamp, promptly can control the unlatching of lighting automatically or close according to information such as ambient brightness and ohject displacements, like this, will give people when night or the relatively poor occasion of ambient brightness are used lighting, bring a lot of convenience.Adopt simultaneously to have the ultrasonic transducer that transmits and receives dual-use function, can reduce product cost, simplify the adjusting difficulty when installing.

The utility model is described in further detail below in conjunction with the drawings and the specific embodiments.

Description of drawings

Fig. 1 is the utility model circuit block diagram.

Fig. 2 is the physical circuit schematic diagram of a kind of embodiment of the utility model.

Embodiment

As shown in Figure 1 and Figure 2, the intelligent ultrasonics sense light of present embodiment comprises power supply, lighting, ultrasonic transducer, luminance detection circuit, single chip machine controlling circuit and two-way amplifier.Ultrasonic transducer is connected with single chip machine controlling circuit by two-way amplifier, and single chip machine controlling circuit is connected with lighting.When connecting intelligent ultrasonics sense light power supply, when intelligent ultrasonics sense light ambient brightness of living in is lower than the luminance detection circuit set point, ultrasonic transducer is started working under the control of single chip machine controlling circuit and two-way amplifier, intermittently outwards transmits and receives ultrasonic wave.When the object with certain volume in the spatial dimension that ultrasonic transducer can be radiated, moving and the variation of generation object space on the certain distance arranged simultaneously, ultrasonic transducer is when being in next accepting state, produce from being transmitted into the time difference of received ultrasonic signal with the received signal of the last period, single chip machine controlling circuit to this time difference handle with confirm after send control signal control lighting opening and closing, and by single chip machine controlling circuit and two-way amplifier according to the work of detection signal control ultrasonic transducer.

Described power unit is made of resistance R 2, R3, capacitor C 1, C2, bridge rectifier D1, voltage stabilizing didoe D2, provides stable operating voltage to late-class circuit.Also can select switching type power supply or linear Industrial Frequency Transformer power supply for use according to side circuit power needs.By resistance R 1, R4, R5, phototriode VT1, comparator A1, capacitor C 3 constitutes luminance detection circuit, wherein resistance R 1, the dividing point of R4 is exactly the brightness detection reference, resistance R 1 is brightness detection reference adjustable resistor, when ambient brightness during greater than the brightness detection reference, comparator A1 output low level, close the normal working voltage of back level single chip machine controlling circuit and two-way amplifier, simultaneously, intelligent ultrasonics sense light mains switch K2 just connects at last, because closing of back level single chip machine controlling circuit, the K1-1 of normally opened relay K1 disconnects, and lighting also is to be in to extinguish state, reaches the purpose of electrical energy saving.Connect intelligent ultrasonics sense light mains switch K2, when ambient brightness during less than the brightness detection reference, comparator A1 exports high level, the normal working voltage of opening single chip circuit and two-way amplifier automatically.

The operating voltage opening and closing that come Interactive control two-way amplifier A2 and A3 by the port one and the port 2 of single-chip microcomputer in the present embodiment.Single-chip microcomputer transmits and receives the ultrasonic signal state period being in respectively like this, and amplifier A2 and A3 can not interfere mutually.Certainly, amplifier A2 and A3 can select the amplifier of corresponding power for use according to the needs of extent of actual control.

The present embodiment single chip machine controlling circuit comprises single-chip microcomputer and single-chip microcomputer crystal oscillator, single-chip microcomputer is made as the ultrasonic signal output with one-chip machine port 3, the single-chip microcomputer crystal oscillator utilizes port 3 to obtain a ultrasonic frequency signal (about general frequency of utilization 40KHz) by Single Chip Microcomputer (SCM) program frequency division or delay process; One-chip machine port 4 is the ultrasonic signal receiving terminal; Single-chip microcomputer starts or closed relay K1 by port 5 control triode VT3, reaches the mains switch K1-1 that opens or close lighting; One-chip machine port 6 is by triode VT2 control photoelectrical coupler PC1, thereby the angle of flow that increases gradually or reduce bidirectional diode VS1 reaches lighting when opening or closing, be classified to slowly light or extinguish lighting gradually, improve people effectively when using light fixture night, eyes are to the incompatibility of jump in brightness.

The displacement information that present embodiment is produced ultrasonic wave in the air by single chip machine controlling circuit is handled and computing, realized a kind of intelligent ultrasonics displacement induction control lamp, certainly, also can handle and computing in other information that propagation is produced ultrasonic wave, realize the intelligent ultrasonics sense light of other functions by the program that changes single-chip microcomputer.

Claims

1. an intelligent ultrasonics sense light is characterized in that comprising power supply, lighting, ultrasonic transducer, single chip machine controlling circuit and two-way amplifier; Ultrasonic transducer is connected with single chip machine controlling circuit by two-way amplifier, and single chip machine controlling circuit is connected with lighting.

2. intelligent ultrasonics sense light according to claim 1, it is characterized in that described intelligent ultrasonics sense light also comprises luminance detection circuit, luminance detection circuit links to each other with two-way amplifier with single chip machine controlling circuit, and output detection signal is given single chip machine controlling circuit and two-way amplifier, single-chip microcomputer is by processing and confirm back control lighting, and controls ultrasonic transducer work by single chip machine controlling circuit and two-way amplifier according to detection signal.