Summary of the invention
The utility model provides a kind of telepilot with the gas detection function to the problems referred to above that existing gas detection exists, and the user can utilize this telepilot in the indoor detection of carrying out indoor gas at any time, voluntarily, and testing result is accurate, and is extremely easy to use.
For realizing above-mentioned technical purpose, the utility model adopts following technical proposals to be achieved:
A kind of telepilot with the gas detection function comprises the Main Processor Unit that is arranged in the telepilot, in said telepilot, also is provided with the gas-detecting device that is used for detecting air gas concentration to be detected.
Aforesaid telepilot, said gas-detecting device specifically can include following each component unit:
Gas sensor is used for responding to air gas concentration to be detected, obtains the gas concentration original signal;
Data processing unit is used for the gas concentration original signal is handled, and obtains gas concentration testing result and output;
Data display unit is used to show the gas concentration testing result.
Aforesaid telepilot, said data processing unit comprise signal amplification module, analog-to-digital conversion module and the gas detection main control module that connects successively, and the input end of signal amplification module connects said gas sensor.
Specifically; Can adopt following circuit structure to realize: said data processing unit includes amplifier U1; Two signal input parts of U1 connect said gas sensor on the one hand; The drain electrode and the source electrode that connect a P channel junction field-effect pipe on the other hand respectively, the grid of P channel junction field-effect pipe connects power supply; The signal output part of U1 is connected to analog to digital converter U2, and then is connected to the signal input part of single-chip microcomputer U3 through analog to digital converter U2.
Aforesaid telepilot, said data display unit is preferably the display screen of said telepilot.
Aforesaid telepilot, said telepilot is preferably air-conditioning remote control, and at this moment, said data display unit is air-conditioning remote control display screen and/or air-conditioning display panel.
Aforesaid telepilot; On the housing of said telepilot, the position of corresponding said gas sensor is provided with several ladder bands; The cross arrangement of ladder band from-inner-to-outer; Form integral body and be the cambered surface ventilating structure of evagination, be formed with the ventilation mouth that covers under the outer ladder band between the adjacent ladder band in housing.
Aforesaid telepilot is provided with salient point at the center of said ventilating structure, leaves the plane and is convenient to the gas permeation ventilating structure so that when being positioned over telepilot on the plane, support telepilot.
Aforesaid telepilot, for ease of gripping telepilot, the housing of said telepilot be provided with at least one laterally run through the housing of said telepilot arc groove.
Aforesaid telepilot, said gas to be detected is formaldehyde.
Compared with prior art, the advantage and the good effect of the utility model are: through gas-detecting device is set in telepilot, the user can directly utilize telepilot, momentarily to detect indoor gas everywhere, and the gas detection process is simple, convenient.
After the embodiment in conjunction with advantages the utility model, other characteristics of the utility model and advantage will become clearer.
Embodiment
Below in conjunction with accompanying drawing and embodiment the technical scheme of the utility model is done further detailed explanation.
The utility model is directed against existing household internal and detects harmful gas testing result out of true or the problems that the detection cost is high, detection is inconvenient such as formaldehyde; Creatively propose on the telepilot that family generally has, gas-detecting device to be set; Utilize telepilot to come detected gas; Improve the convenience and the accuracy of gas detection, reduced the detection cost.
Fig. 1 to Fig. 5 shows an embodiment of the telepilot of the utility model band gas detection function.Wherein, Fig. 1 to Fig. 3 is respectively structure synoptic diagram, side structure synoptic diagram and the side of this embodiment telepilot and cuts open structural representation, and Fig. 4 and Fig. 5 are respectively structured flowchart and concrete circuit diagram of realizing of gas-detecting device in this embodiment telepilot.
To shown in Figure 3, for realizing the gas detection function, be provided with gas-detecting device in the telepilot of this embodiment like Fig. 1, gas-detecting device includes the gas sensor 41 that is arranged in the telepilot housing 11.For ease of gas sensor 41 induced environment air, realize detection to gas concentration; On the housing 11 of telepilot, the position of corresponding gas sensor 41 is provided with several ladder bands; As shown in Figure 2; Include four ladder bands 121,122,123 and 124, these ladder band from-inner-to-outer cross arrangements form the whole cambered surface ventilating structure 12 of evagination in housing 11 that be.As shown in Figure 3, between adjacent ladder band, be formed with ventilation mouth, be example with ladder band 121 with ladder band 122, between these two ladder bands, be formed with ventilation mouth 125, and this ventilation mouth 125 covers in and is positioned at outer field ladder band 122 times.Also be formed with accordingly the ventilation mouth of similar structures between other ladder bands.Through above-mentioned ventilating structure 12; Gas can enter into telepilot housing 11 inside through ventilation mouth 125 on the one hand; Be beneficial to gas sensor 41 induction gases, on the other hand, because ventilation mouth 125 covers on outer ladder band 122 times; Extraneous dust and moisture are not easy to get into housing 11 inside, thereby play the effect of waterproof and dustproof.And, be difficult for seeing the existence of ventilation mouth from the outside, can guarantee the appearance integral consistance of telepilot.In this embodiment, ladder band 121 to ladder band 124 is a ring-type, but is not limited to this, also can be shapes such as band shape, bending-like.
In this embodiment, for guaranteeing ring ladder band 121 intensity to ladder band 124, ventilating structure 12 is provided with the reinforcement 127 that vertically runs through all ladder bands, and is as shown in Figure 1.In addition, also be provided with salient point 126,, can support telepilot and leave the plane and be convenient to gas permeation ventilating structure 12 so that when being positioned over telepilot on the plane at the center of ventilating structure 12.
In addition, for ease of gripping telepilot, on the housing 11 of telepilot, also be provided with the arc groove 13 of the housing 11 that laterally runs through telepilot.When the user's handling telepilot, finger is stuck in the arc groove 13 telepilot of can holding with a firm grip like a cork just.The bar number of arc groove can be provided with one or more according to the volume size of telepilot.
For the gas-detecting device that is provided with in the telepilot, can adopt the structured flowchart of Fig. 4 to realize.
As shown in Figure 4, gas-detecting device specifically includes gas sensor 41, data processing unit 42 and the data display unit 43 that connects successively.Gas sensor 41 is used for responding to gas concentration to be detected in the air, obtains the gas concentration original signal; 42 pairs of gas concentration original signals of data processing unit are handled, and obtain gas concentration testing result and output; Data display unit 43 is used for the gas concentration testing result of video data processing unit 42 output.In this embodiment, data display unit 43 can be the display unit that is arranged on separately on the telepilot, also can be the remote controller displays screen that is provided with on the telepilot.In addition, this data display unit 43 also can be display screen or the display panel on the pairing electric equipment of telepilot, and for example, telepilot is an air-conditioning remote control, and data display unit 43 also can be the display panel of the corresponding air conditioner of air-conditioning remote control.Certainly, data display unit 43 also can be the various combination of multiple display unit.
In this embodiment, the gas concentration original signal that gas sensor 41 produces is generally and the corresponding current signal of gas concentration, need carry out a series of processing to this current signal, to obtain final gas concentration numerical value.For this reason, data processing unit 42 specifically comprises signal amplification module 421, analog-to-digital conversion module 422 and the gas detection main control module 423 that connects successively, and the input end of signal amplification module 421 connects gas sensor 41.The principle of work of each module and function are referring to Fig. 5 and follow-up description to Fig. 5.
In addition; For ease of telepilot testing result is handled; Carry out function corresponding according to testing result simultaneously; In the telepilot of this embodiment, the output terminal of data processing unit 42 also is connected to telepilot Main Processor Unit 44, so that the gas concentration testing result is transferred in the telepilot Main Processor Unit 44.
Data processing unit 42 can adopt the circuit of Fig. 5 to realize.
Because the current signal that gas sensor 41 produces is little current signal; For ease of subsequent treatment; In the circuit of Fig. 5, include an amplifier U1, two the signal input part-IN of U1 and+IN are connected to the induced signal lead-out terminal of the gas sensor 41 at connection terminal CN1 place respectively.This amplifier U1 and electric capacity E4 constitute amplifying circuit, after the current signal amplification with gas sensor 41 generations, from the output terminal OUT output correspondent voltage signal of U1.The output terminal OUT of U1 is connected with analog to digital converter U2, and the digital output end D of U2 is connected to the signal input part as the single-chip microcomputer U3 of gas detection main control module, and the voltage signal of U1 output transfers among the single-chip microcomputer U3 after U2 converts digital signal into.Single-chip microcomputer U3 handles voltage signal, output and the corresponding gas concentration numerical value of voltage signal, and this numerical value is transferred to other unit show accordingly or control and treatment.
In the circuit diagram of this embodiment, two signal input part-IN of amplifier U1 with+IN and the source electrode and the drain electrode that are connected a P channel junction field-effect pipe M1 respectively, and the grid of M1 is connected to+the 5V power supply through current-limiting resistance R3.Because the internal resistance of M1 is less, do not use a teleswitch when carrying out gas detection the user, M1 is in closed condition, the electric charge short circuit that can gas sensor 41 two ends be produced.
In addition; The last resistor voltage divider network that also is connected with resistance R 02 and resistance R 014 formation of positive signal input end+IN of amplifier U1; For amplifier U1 a benchmark bias generator is provided through this resistor voltage divider network; In order to of the negative drift of solution gas sensor 41,, improve the circuit scope of application to guarantee the existing sensor of negative drift also can normally carry out gas detection at 0.Version through resistor voltage divider network provides bias generator, and circuit structure is simple, and cost is lower.
Be example with the gas sensor that in air-conditioning remote control, is provided for detecting indoor formaldehyde below, the concise and to the point process of using formaldehyde gas in this telepilot sensing chamber of describing.
The user gets into the formaldehyde detecting pattern by the detection formaldehyde key that is provided with on the telepilot.
Telepilot is placed in the environment that needs the detection formaldehyde gas, and the user sends the control command that formaldehyde detects through button, and the gas-detecting device that triggers in the telepilot is started working.In the gas-detecting device course of work, let telepilot be in static condition, and note not ventilating, in order to avoid influence testing result.
Detect after two minutes and finish, the output testing result.
During detection, the gas sensor that detects content of formaldehyde in the air in the gas-detecting device is responded to the concentration of formaldehyde in the air, produces and the corresponding current signal of concentration of formaldehyde; Then, this current signal is finally exported the concentration of formaldehyde testing result that detects after processing and amplifying and mode switch processing.
The telepilot Main Processor Unit judges according to the preset alarming value that exceeds standard whether the concentration of formaldehyde value of gas-detecting device output exceeds standard.If do not exceed standard, judge that the concentration of formaldehyde in the environment is qualified; If exceed standard, judge that the concentration of formaldehyde in the environment is defective.
If concentration of formaldehyde is qualified, on remote controller displays screen or air-conditioning display panel, show the actual ppm value of concentration of formaldehyde, and prompting user formaldehyde does not exceed standard on display screen.
If concentration of formaldehyde is defective, on remote controller displays screen or air-conditioning display panel, show the actual ppm value of concentration of formaldehyde, and on display screen, point out user's concentration of formaldehyde to exceed standard that simultaneously, telepilot is also sent out and can be sent alarm sound and remind.The user can carry out handled according to the demonstration and the warning of telepilot, removes the formaldehyde pattern like manual control operation of air conditioner, to remove airborne formaldehyde.Perhaps, when concentration of formaldehyde was defective, the telepilot Main Processor Unit was controlled infrared emission unit automatically and is sent remote signal, and the corresponding air-conditioning start operation of control removes the formaldehyde pattern, to remove airborne formaldehyde.
In addition; On being employed in remote controller displays screen or air-conditioning display panel, directly show the actual ppm numerical value of concentration of formaldehyde; Can also adopt graphic display mode, i.e. the histogram figures of data representing concentration of formaldehyde value and alarming value magnitude relationship on display screen or display panel.Adopt the fuzzy mode that shows of this concentration of formaldehyde figure; Whether the user can be known the relativity of actual concentration of formaldehyde and alarming value through graph direct ground, thereby also can judge formaldehyde under the situation about whether exceeding standard intuitively and exceed standard even do not point out at telepilot.
Concerning the utility model technical scheme, telepilot is not limited to air-conditioning remote control, also can be other household electrical appliance remote controllers such as televisor, STB.Gas detection is not limited to formaldehyde, also can be the gas of other kinds, and the kind that different gas only need be adjusted gas sensor gets final product.
Above embodiment only in order to the technical scheme of explanation the utility model, but not limits it; Although the utility model has been carried out detailed explanation with reference to previous embodiment, for the person of ordinary skill of the art, still can make amendment to the technical scheme that previous embodiment is put down in writing, perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of relevant art scheme break away from the spirit and the scope of the utility model technical scheme required for protection.