CN204908587U - Locker with noise measuring function - Google Patents
Locker with noise measuring function Download PDFInfo
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- CN204908587U CN204908587U CN201520552343.9U CN201520552343U CN204908587U CN 204908587 U CN204908587 U CN 204908587U CN 201520552343 U CN201520552343 U CN 201520552343U CN 204908587 U CN204908587 U CN 204908587U
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- noise
- circuit
- electrochemical capacitor
- operational amplifier
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Abstract
The application discloses a locker with noise measuring function belongs to field of furniture. A locker with noise measuring function, but personally experiences sth. Part of the body including the cabinet that the storing was used, includes the noise sensitive detector, microprocessor and the display screen that set up on the cabinet body, noise sensitive detector and display screen are connected to the microprocessor electricity. This patent not only can be stored article but also can be detected the noise, and a thing is dual -purpose, even also can not make locker with noise measuring function lose the function under no noise influence's the condition, and adoption components and parts are ordinary components and parts, preparation low cost.
Description
Technical field
The utility model relates to field of furniture, is specifically related to a kind of locker with noise measuring function.
Background technology
Noise is the sound that sounding body sends when doing random vibration, and sound is produced by the vibration of object, propagates in certain medium (as solid, liquid, gas) with the form of ripple.From physiological point, every interference people rest, study and work and the sound to the sound generation interference that will listen, namely unwanted sound, is referred to as noise.When noise on human and surrounding environment cause harmful effect, just form noise pollution.Along with Urbanization in China is more and more faster, the creation of various plant equipment and use, while bringing flourishing and progress, also create more and more and more and more stronger noise to the mankind.Noise not only can cause damage to hearing, can also bring out multiple carcinogenic fatal disease, also disturb to some extent the life and work of people.
People do not have systematic understanding to noise pollution, usually only have and find that noise pollution is on self-inflicted impact with just knowing aftersensation after the meeting when people feels not quite the thing, but the injury that now noise pollution causes has become irreversible possible permanent damage often.Therefore, be necessary to detect noise, especially living in the resident of business district, so just before noise does not also cause possible permanent damage to human body, Noise Prevention and Treatment measure (as installed soundproof wall, medi-empty glass window, triple glazing window, vacuum glazing, sound insulating seal bar etc.) can being strengthened.Or, noise measuring data are carried out evidence-gathering, report situations to relevant departments, make the tissue of manufacture noise or individual stop polluting.
But, at present can for the noise measuring equipment of ordinarily resident, and be used for the professional equipment of detection noise specially for ordinarily resident's too expensive.
Utility model content
The utility model provides a kind of locker with noise measuring function, and to solve, do not have at present can for the problem of the noise measuring equipment of ordinarily resident.
For overcoming the above problems, adopt following scheme:
Scheme one: a kind of locker with noise measuring function, comprising can the cabinet of storing, comprises the noise detector be arranged on cabinet, microprocessor and display screen; Described microprocessor electrical connection noise detector and display screen; Described noise detector comprises shell and affixed noise detecting circuit in the enclosure; Described noise detecting circuit comprises the noise Rx connected successively and compares circuit with acoustic-electric change-over circuit, noise signal amplifying circuit, noise signal and noise indicates and control circuit.
Operation principle: the locker with noise measuring function can be used for stores, can carry out test and monitoring noise with noise detector simultaneously.Noise detector converts noise signal to the signal of telecommunication and is passed to microprocessor after comparing, and Microprocessor S3C44B0X display screen demonstrates the specifying information of noise.
Beneficial effect: the 1. cabinet with the locker of noise measuring function is provided with noise detector, not only can stored article but also can detection noise, dual-use material, even if also can not make the locker with noise measuring function lose function when noiseless affects.2. microprocessor connects noise detector and display screen, the convenient information according to display screen display, before noise does not also cause possible permanent damage to human body, strengthen Noise Prevention and Treatment measure (as installed soundproof wall, medi-empty glass window, triple glazing window, vacuum glazing, sound insulating seal bar etc.), noise measuring data are carried out evidence-gathering by the information that also can store according to the information of display screen display and microprocessor, report situations to relevant departments, make the tissue of manufacture noise or individual stop polluting.3. noise detector comprises shell and affixed noise detecting circuit in the enclosure; Described noise detecting circuit comprises the noise Rx connected successively and compares circuit with acoustic-electric change-over circuit, noise signal amplifying circuit, noise signal and noise indicates and control circuit; The shell of noise detector is facilitated to protect each circuit in shell.4. components and parts that the utility model adopts are common components and parts, and cost of manufacture is cheap.
Scheme two: on the basis of scheme one further, one end ground connection of microphone MIC in described noise Rx and acoustic-electric change-over circuit and one end of resistance R2, this end of microphone MIC is connected to the secondary input of described noise signal amplifying circuit; The other end contact resistance R1 of microphone MIC and electric capacity C1; The other end of the other end contact resistance R2 of described electric capacity C1, this end of electric capacity C1 is connected to the input in the same way of described noise signal amplifying circuit simultaneously; Facilitate microphone MIC to receive noise signal, and after converting noise signal to the signal of telecommunication, be passed to noise signal amplifying circuit below.
Scheme three: on the basis of scheme two further, the input in the same way of the operational amplifier IC1 of described noise signal amplifying circuit receives and passes the signal of coming from described noise Rx and acoustic-electric change-over circuit; One end of reverse input end contact resistance R3 of operational amplifier IC1 and one end of variable resistor RP1; The output of operational amplifier IC1 connects the other end and the adjustable side of variable resistor RP1; Meanwhile, the output of operational amplifier IC1 connects the anode of diode D1, and the negative electrode of diode D1 is connected to the input in the same way that noise signal compares circuit; The negative electrode of diode D1 connects the anode of Push switch SA and electrochemical capacitor C3 simultaneously; The other end of Push switch SA is connected the negative electrode of electrochemical capacitor C2 and the output of described noise Rx and acoustic-electric change-over circuit with the negative electrode of electrochemical capacitor C3; The anode contact resistance R3 of electrochemical capacitor C2, resistance R3 is connected to the inverting input of operational amplifier IC1; Conveniently receive signal that noise Rx and acoustic-electric change-over circuit pass over and after amplifying, the noise signal be passed to below compares circuit noise signal comparator circuit.
Scheme four: on the basis of scheme two further, described noise signal compares one end of one end contact resistance R1 of resistance R4 in circuit and is connected to noise signal indicating circuit, and the other end of described resistance R4 connects the negative electrode of Zener diode D2 and the inverting input of operational amplifier IC2; The output of described operational amplifier IC2 is connected to noise signal indicating circuit; Conveniently receive the signal passed over from noise signal amplifying circuit, and after being compared by the signal of signal and setting, the noise be passed to below indicates and control circuit by result.
Scheme five: on the basis of scheme two further, described noise instruction receives with the colelctor electrode of NPN type triode Q1 in control circuit the signal of telecommunication transmitted from resistance R4, the colelctor electrode of NPN type triode Q1 connects the anode of electrochemical capacitor C4, the minus earth of electrochemical capacitor C4; The base stage of NPN type triode Q1 receives the signal of telecommunication passed over from operational amplifier IC2, one end of the emitter stage contact resistance R5 of NPN type triode Q1, the anode of the other end connecting luminous diode D3 of resistance R5, the negative electrode of light emitting diode D3 connects the negative electrode of electrochemical capacitor C5 and connects the negative pole of power supply; The anode connection noise signal of electrochemical capacitor C5 compares the anode of Zener diode D2 in circuit, the anode of electrochemical capacitor C5 connects the negative electrode of the negative electrode of electrochemical capacitor C3 in noise signal amplifying circuit, one end of Push switch SA and electrochemical capacitor C2, and the anode of electrochemical capacitor C5 connects one end of resistance R2 and one end of microphone MIC in noise Rx and acoustic-electric change-over circuit; Convenient reception is compared from noise signal the signal that passes over circuit and controls the luminous situation of light emitting diode D3 according to comparative result, and by signal transmission to microprocessor, Microprocessor S3C44B0X display screen is shown.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the utility model embodiment;
Fig. 2 is the noise Rx of the utility model embodiment and the circuit diagram of acoustic-electric change-over circuit;
Fig. 3 is the circuit diagram of the noise signal amplifying circuit of the utility model embodiment;
Fig. 4 is the circuit diagram that the noise signal of the utility model embodiment compares circuit;
Fig. 5 is the noise signal instruction of the utility model embodiment and the circuit diagram of control circuit.
Detailed description of the invention
Below by detailed description of the invention, the utility model is described in further detail:
Reference numeral in Figure of description comprises: resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, electric capacity C1, electrochemical capacitor C2, electrochemical capacitor C3, electrochemical capacitor C4, electrochemical capacitor C5, NPN type triode Q1, microphone MIC, variable resistor RP1, Push switch SA, diode D1, Zener diode D2, light emitting diode D3, operational amplifier IC1, operational amplifier IC2, cabinet door 1, noise detector 2, display screen 3.
As shown in Figure 1, a kind of locker with noise measuring function, comprising can the cabinet of storing, comprises noise detector 2, microprocessor and the display screen 3 be arranged on cabinet door 1 inwall; Microprocessor electrical connection noise detector 2 and display screen 3.
As shown in Figure 2, one end ground connection of an Electret condenser microphone MIC in noise Rx and acoustic-electric change-over circuit and one end of resistance R2, this end of Electret condenser microphone MIC is connected to the secondary input of noise signal amplifying circuit; The other end contact resistance R1 of Electret condenser microphone MIC and electric capacity C1; The other end of the other end contact resistance R2 of electric capacity C1, this end of electric capacity C1 is connected to the positive input terminal of noise signal amplifying circuit simultaneously, is namely connected to the in-phase input end of operational amplifier IC1; The other end of resistance R1 connects the positive pole that can provide the power supply of six to ten five volts of voltages.Resistance R1 is the biasing resistor of noise Rx and acoustic-electric change-over circuit.After Electret condenser microphone MIC receives noise signal, will noise be converted to the corresponding signal of telecommunication.This signal is coupled through electric capacity C1, adds to the signal input part of operational amplifier IC1.
As shown in Figure 3, the operational amplifier IC1 in noise signal amplifying circuit adopts TL071.3 pin of TL071 are the input in the same way of operational amplifier IC1, receive and pass the forward signal of coming from noise Rx and acoustic-electric change-over circuit; 2 pin of TL071 are the reverse input end of operational amplifier IC1, one end of this end contact resistance R3 of operational amplifier IC1 and one end of variable resistor RP1; 6 pin of TL071 are the output of operational amplifier IC1, and the output of operational amplifier IC1 connects the other end and the adjustable side of variable resistor RP1; Meanwhile, the output of operational amplifier IC1 connects the anode of diode D1, and the negative electrode of diode D1 is connected to the input in the same way that noise signal compares circuit; The negative electrode of diode D1 connects the anode of Push switch SA and electrochemical capacitor C3 simultaneously; The other end of Push switch SA is connected negative electrode, the resistance R2 and Electret condenser microphone MIC of electrochemical capacitor C2 with the negative electrode of electrochemical capacitor C3; The anode contact resistance R3 of electrochemical capacitor C2, resistance R3 is connected to the inverting input of operational amplifier IC1.
The input impedance of operational amplifier IC1 is fixed as 47 kilo-ohms by resistance R2, and variable resistor RP1 is the feedback element of operational amplifier IC1, regulates the variable resistor RP1 in feedback control loop that the multiplication factor of operational amplifier IC1 can be made to adjust arbitrarily within the scope of 1-250.
The resistance R1 of noise Rx and acoustic-electric change-over circuit is its biasing resistor.After Electret condenser microphone MIC1 receives noise signal, will noise be converted to the corresponding signal of telecommunication.This signal is coupled through electric capacity C1, adds to the signal input part of operational amplifier IC1.
As shown in Figure 4, noise signal compares one end of one end contact resistance R1 of resistance R4 in circuit and is connected to noise signal indicating circuit, and the other end of described resistance R4 connects the negative electrode of Zener diode D2 and the inverting input of operational amplifier IC2; The output of described operational amplifier IC2 is connected to noise signal indicating circuit.
The operational amplifier IC2 that noise signal compares in circuit adopts TL071, and the reference voltage (3.3V) of the signal after operational amplifier IC1 amplification and Zener diode D2 is made comparisons by it.When ambient noise is lower than normal value, the signal voltage of operational amplifier IC2 in-phase input end is lower than reference voltage, and operational amplifier IC2 output low level, makes NPN type triode Q1 end, and red light emitting diodes D3 does not work.
When ambient noise exceedes normal value, the signal voltage of operational amplifier IC2 in-phase input end is higher than reference voltage, and namely operational amplifier IC2 overturns output high level, makes NPN type triode Q1 conducting, luminous after light emitting diode D3 is energized, and instruction noise transfinites.Stir Push switch SA downwards, circuit reset can be made to arrive initial state.
As shown in Figure 5, noise signal instruction receives with the colelctor electrode of NPN type triode Q1 in control circuit the signal of telecommunication transmitted from resistance R4, and the colelctor electrode of NPN type triode Q1 connects the anode of electrochemical capacitor C4, the minus earth of electrochemical capacitor C4; The base stage of NPN type triode Q1 receives the signal of telecommunication passed over from operational amplifier IC2, one end of the emitter stage contact resistance R5 of NPN type triode Q1, the anode of the other end connecting luminous diode D3 of resistance R5, the negative electrode of light emitting diode D3 connects the negative electrode of electrochemical capacitor C5 and connects the negative pole of power supply; The anode connection noise signal of electrochemical capacitor C5 compares the anode of Zener diode D2 in circuit, the anode of electrochemical capacitor C5 connects the negative electrode of the negative electrode of electrochemical capacitor C3 in noise signal amplifying circuit, one end of Push switch SA and electrochemical capacitor C2, and the anode of electrochemical capacitor C5 connects one end of resistance R2 and one end of microphone MIC in noise Rx and acoustic-electric change-over circuit.
Above-described is only embodiment of the present utility model, and in scheme, the general knowledge such as known concrete structure and characteristic does not do too much description at this.Should be understood that; for a person skilled in the art, under the prerequisite not departing from the utility model structure, some distortion and improvement can also be made; these also should be considered as protection domain of the present utility model, and these all can not affect effect and the practical applicability of the utility model enforcement.
Claims (5)
1. have a locker for noise measuring function, comprising can the cabinet of storing, it is characterized in that: comprise the noise detector be arranged on cabinet, microprocessor and display screen; Described microprocessor electrical connection noise detector and display screen; Described noise detector comprises shell and affixed noise detecting circuit in the enclosure; Described noise detecting circuit comprises the noise Rx connected successively and compares circuit with acoustic-electric change-over circuit, noise signal amplifying circuit, noise signal and noise indicates and control circuit.
2. the locker with noise measuring function according to claim 1, it is characterized in that: one end ground connection of microphone MIC in described noise Rx and acoustic-electric change-over circuit and one end of resistance R2, this end of microphone MIC is connected to the secondary input of described noise signal amplifying circuit; The other end contact resistance R1 of microphone MIC and electric capacity C1; The other end of the other end contact resistance R2 of described electric capacity C1, this end of electric capacity C1 is connected to the input in the same way of described noise signal amplifying circuit simultaneously.
3. the locker with noise measuring function according to claim 2, is characterized in that: the input in the same way of the operational amplifier IC1 of described noise signal amplifying circuit receives and passes the signal of coming from described noise Rx and acoustic-electric change-over circuit; One end of reverse input end contact resistance R3 of operational amplifier IC1 and one end of variable resistor RP1; The output of operational amplifier IC1 connects the other end and the adjustable side of variable resistor RP1; Meanwhile, the output of operational amplifier IC1 connects the anode of diode D1, and the negative electrode of diode D1 is connected to the input in the same way that noise signal compares circuit; The negative electrode of diode D1 connects the anode of Push switch SA and electrochemical capacitor C3 simultaneously; The other end of Push switch SA is connected the negative electrode of electrochemical capacitor C2 and the output of described noise Rx and acoustic-electric change-over circuit with the negative electrode of electrochemical capacitor C3; The anode contact resistance R3 of electrochemical capacitor C2, resistance R3 is connected to the inverting input of operational amplifier IC1.
4. the locker with noise measuring function according to claim 2, it is characterized in that: described noise signal compares one end of one end contact resistance R1 of resistance R4 in circuit and is connected to noise signal indicating circuit, the other end of described resistance R4 connects the negative electrode of Zener diode D2 and the inverting input of operational amplifier IC2; The output of described operational amplifier IC2 is connected to noise signal indicating circuit.
5. the locker with noise measuring function according to claim 2, it is characterized in that: described noise instruction receives with the colelctor electrode of NPN type triode Q1 in control circuit the signal of telecommunication transmitted from resistance R4, the colelctor electrode of NPN type triode Q1 connects the anode of electrochemical capacitor C4, the minus earth of electrochemical capacitor C4; The base stage of NPN type triode Q1 receives the signal of telecommunication passed over from operational amplifier IC2, one end of the emitter stage contact resistance R5 of NPN type triode Q1, the anode of the other end connecting luminous diode D3 of resistance R5, the negative electrode of light emitting diode D3 connects the negative electrode of electrochemical capacitor C5 and connects the negative pole of power supply; The anode connection noise signal of electrochemical capacitor C5 compares the anode of Zener diode D2 in circuit, the anode of electrochemical capacitor C5 connects the negative electrode of the negative electrode of electrochemical capacitor C3 in noise signal amplifying circuit, one end of Push switch SA and electrochemical capacitor C2, and the anode of electrochemical capacitor C5 connects one end of resistance R2 and one end of microphone MIC in noise Rx and acoustic-electric change-over circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520552343.9U CN204908587U (en) | 2015-07-28 | 2015-07-28 | Locker with noise measuring function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520552343.9U CN204908587U (en) | 2015-07-28 | 2015-07-28 | Locker with noise measuring function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204908587U true CN204908587U (en) | 2015-12-30 |
Family
ID=54957785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520552343.9U Expired - Fee Related CN204908587U (en) | 2015-07-28 | 2015-07-28 | Locker with noise measuring function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204908587U (en) |
-
2015
- 2015-07-28 CN CN201520552343.9U patent/CN204908587U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151230 Termination date: 20160728 |