CN105588609A - Device used for detecting mosquitoes - Google Patents
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- CN105588609A CN105588609A CN201610100407.0A CN201610100407A CN105588609A CN 105588609 A CN105588609 A CN 105588609A CN 201610100407 A CN201610100407 A CN 201610100407A CN 105588609 A CN105588609 A CN 105588609A
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Abstract
The invention discloses a device used for detecting mosquitoes. The device comprises a signal capturing assembly, an AGC and bandwidth operational amplifier module, an analog filter circuit, a digital filter circuit, an amplitude measuring unit, an A/D unit, and a processor unit. The signal capturing assembly can be used to convey the captured signals to the AGC and bandwidth operational amplifier module, one channel of signals can be output to the analog filter circuit for the filtering and the selecting, and then can be output to the digital filter circuit, and can be output to the processor unit by the A/D unit, and the other channel of signals can be conveyed to the amplitude measuring unit, and can be output to the processor unit by the A/D unit. After a plurality of times of detection, the corresponding real-time information of the mosquitoes can be calculated, and then can be stored or output. The device used for detecting the mosquitoes is advantageous in that the real-time data such as flying speed, frequency of flying fluttering sound, three-dimensional coordinates, and accelerated speed of the mosquitoes can be accurately detected in a real-time manner by adopting the sound concentrating processing, the noise reducing processing, and the selecting processing, and the above mentioned real-time data can be stored and output, and therefore the technical guarantee of the automatic capturing of the mosquitoes can be provided for the device.
Description
Technical field
The present invention relates to a kind of detection equipment, relate in particular to a kind of for detecting the device of mosquito.
Background technology
Although mosquito is little, be arch enemy of man, the disease of being propagated by mosquito bite all has certain danger, and the female mosquito of sucking blood is the vector of other pathogen such as dengue fever, malaria, yellow fever, filariasis, encephalitis B. Except all there is the distribution of mosquito in Wai Ge continent, the Antarctic Continent.
The problems of bringing due to mosquito, people design a lot of ways kill mosquito, especially for indoor, people use mosquito-repellent incense, insecticide, mosquito killers etc. have toxicant, also there is use mosquito net, the nontoxic equipment such as Mosquito killer lamp, no matter but be poisonous or nontoxic, these methods have its drawback, such as mosquito net is because gas permeability is not good, need the problems such as installation, in existing city, seldom there has been use in family, and Mosquito killer lamp can only use at night, and the sound of its light and strike mosquito affects user's sleep, and have toxicant to have injury to human body and environment, and can increase the resistance to the action of a drug of mosquito, the even natural enemy of kill mosquitoes, these are all worthless. along with the raising of automation degree of equipment, utilize equipment active at night to slaughter or expel mosquito and become possibility, but this needs a kind of device that can accurately and timely detect the position of mosquito, while flight due to mosquito, sound is very little, in addition have noise jamming, therefore in prior art, have no the report that can accurately and timely locate the device of mosquito position.
Summary of the invention
For overcoming the deficiencies in the prior art, the invention provides a kind of mosquito position, location that can be accurately and timely for detecting the device of mosquito.
For achieving the above object, the technical solution adopted in the present invention is: a kind of for detecting the device of mosquito, comprise signal capture assembly, AGC and bandwidth amplifier module, analogue filter circuit, digital filter circuit, amplitude measurement unit, A/D unit and processor unit, described signal capture assembly at least arranges one group, the signal capturing is delivered to AGC and bandwidth amplifier module by signal capture assembly, with the highest AGC gain and the highest bandwidth signal acquisition amplification, then export analogue filter circuit to, carry out filtering and selection with maximum bandwidth, export useful mosquito tone signal to digital filter circuit, and after be data-signal through A/D cell translation, export processor unit to, analyzing and processing obtains amplitude versus frequency characte and the phase-frequency characteristic of representative mosquito acoustical signal wherein, and then picked up signal frequency and band data, the information of three dimensional space coordinate, simultaneously, AGC and bandwidth amplifier module are also exported a road to amplitude measurement unit, and be data-signal through A/D cell translation, export processor unit to, control signal to AGC and bandwidth amplifier module by exporting AGC after processor unit and current AGC voltage ratio, controlling AGC gain adjusts, and the bandwidth of analogue filter circuit also can be adjusted thereupon, to obtain suitable amplifier gain and a bandwidth, analogue filter circuit is with the suitable bandwidth selection mosquito sound signal of fluttering its wings up and down, thereby amplify the signal of mosquito sound, centered by current mosquito voice frequency, line amplifies the current sound signal of fluttering its wings up and down with extremely narrow bandwidth selection up and down simultaneously, flying speed, the flight of repeatedly detecting and calculating corresponding mosquito flutter its wings up and down frequency, three dimensional space coordinate, acceleration and the temporal information of sound, then stored or exported by processor unit.
Further, described signal capture assembly comprises the tubaeform sound body that collects, and is arranged on the tubaeform probe that collects sound body osculum end, the sound transducer of the linking probe other end.
Further, described AGC and bandwidth amplifier module are AGC and bandwidth self-adaption amplifier module, and described analogue filter circuit is bandwidth self-adaption analogue filter circuit.
Further, amplitude versus frequency characte and phase-frequency characteristic that described analyzing and processing obtains representative mosquito acoustical signal wherein refer to: taking initial data as source data, or data after FFT conversion time-domain signal broadening, subsequent treatment data are more optimized, obtain amplitude versus frequency characte and the phase-frequency characteristic of representative mosquito acoustical signal wherein with digital technology analysis and processing, further picked up signal frequency and band data, three dimensional space coordinate information.
Further, when described signal capture assembly arranges two groups or more, between each group with circumferentially-spaced or be that sphere-like is three-dimensional to distribute, in the time of circumferentially-spaced, between many group signal capture assemblies and AGC and bandwidth amplifier module, be connected by MUX, send scan round instruction and scan by MUX successively sound transducer the gating of every one side by processor unit, then carry out signals collecting and data processing, until collect sound signal intensity maximum, signal to noise ratio stops scanning when maximum, rest on sound transducer passage now, continue to gather audio frequency, amplify and carry out analog filtering and digital filtering, be converted to data, the data that analyzing and processing obtains or result output, in the time being that sphere-like is three-dimensional to distribute, send scan round instruction and scan by MUX successively at least three sound transducers the gating of every one side by processor unit.
Useful technique effect of the present invention is: by the setting of signal capture assembly, and AGC and bandwidth self-adaption amplifier module one tunnel and bandwidth self-adaption analogue filter circuit, digital filter circuit, one tunnel and amplitude measurement unit, then A/D unit is to the processing of processor unit, with the poly-sound of best mode, noise reduction, selection, the finally flying speed of accurate, real-time detecting mosquito, the flight real time data such as frequency, three dimensional space coordinate, acceleration of sound of fluttering its wings up and down, and store and provide output, for catching mosquito, equipment automatization provides technical guarantee.
Brief description of the drawings
Below in conjunction with drawings and Examples, the present invention is further elaborated.
Fig. 1 is theory structure schematic diagram of the present invention.
Detailed description of the invention
Embodiment 1
As shown in Figure 1 a kind of for detecting the device of mosquito, comprise signal capture assembly, AGC and bandwidth amplifier module, analogue filter circuit, digital filter circuit, amplitude measurement unit, A/D unit and processor unit, described signal capture assembly at least arranges one group, the signal capturing is delivered to AGC and bandwidth amplifier module by signal capture assembly, with the highest AGC gain and the highest bandwidth signal acquisition amplification, then export analogue filter circuit to, carry out filtering and selection with maximum bandwidth, export useful mosquito tone signal to digital filter circuit, and after be data-signal through A/D cell translation, export processor unit to, analyzing and processing obtains amplitude versus frequency characte and the phase-frequency characteristic of representative mosquito acoustical signal wherein, and then picked up signal frequency and band data, the information of three dimensional space coordinate, simultaneously, AGC and bandwidth amplifier module are also exported a road to amplitude measurement unit, and be data-signal through A/D cell translation, export processor unit to, control signal to AGC and bandwidth amplifier module by exporting AGC after processor unit and current AGC voltage ratio, controlling AGC gain adjusts, and the bandwidth of analogue filter circuit also can be adjusted thereupon, to obtain suitable amplifier gain and a bandwidth, analogue filter circuit is with the suitable bandwidth selection mosquito sound signal of fluttering its wings up and down, thereby amplify the signal of mosquito sound, centered by current mosquito voice frequency, line amplifies the current sound signal of fluttering its wings up and down with extremely narrow bandwidth selection up and down simultaneously, flying speed, the flight of repeatedly detecting and calculating corresponding mosquito flutter its wings up and down frequency, three dimensional space coordinate, acceleration and the temporal information of sound, then stored or exported by processor unit.
Described signal capture assembly comprises the tubaeform sound body that collects, and is arranged on the tubaeform probe that collects sound body osculum end, the sound transducer of the linking probe other end.
Described AGC and bandwidth amplifier module are AGC and bandwidth self-adaption amplifier module, and described analogue filter circuit is bandwidth self-adaption analogue filter circuit.
Amplitude versus frequency characte and phase-frequency characteristic that described analyzing and processing obtains representative mosquito acoustical signal wherein refer to: taking initial data as source data, or data after FFT conversion time-domain signal broadening, subsequent treatment data are more optimized, obtain amplitude versus frequency characte and the phase-frequency characteristic of representative mosquito acoustical signal wherein with digital technology analysis and processing, further picked up signal frequency and band data, three dimensional space coordinate information.
When described signal capture assembly arranges two groups or more, between each group with circumferentially-spaced or be that sphere-like is three-dimensional to distribute, in the time of circumferentially-spaced, between many group signal capture assemblies and AGC and bandwidth amplifier module, be connected by MUX, send scan round instruction and scan by MUX successively sound transducer the gating of every one side by processor unit, then carry out signals collecting and data processing, until collect sound signal intensity maximum, signal to noise ratio stops scanning when maximum, rest on sound transducer passage now, continue to gather audio frequency, amplify and carry out analog filtering and digital filtering, be converted to data, the data that analyzing and processing obtains or result output, in the time being that sphere-like is three-dimensional to distribute, send scan round instruction and scan by MUX successively at least three sound transducers the gating of every one side by processor unit.
Embodiment 2
Mosquito is at the 0-15 rice distant wing about 200Hz-800Hz of sound that flutters its wings up and down, and because the mosquito sound decibel beyond 2 meters is very faint, in addition faint mosquito sound is submerged in again in stronger ambient noise sometimes, therefore goes the mosquito sound that detects less signal to noise ratio to need special equipment collection apart from mosquito sound certain distance. the application mainly adopts AGC and bandwidth self-adaption amplifier amplifying circuit, bandwidth self-adaption analog filter and high-performance digital filter MAX9860, and with CPU+MPU(as ARM) processor unit, and signal is carried out to further FFT conversion, obtain amplitude-frequency parameter/phase frequency parameter of broadening, final data analyzing and processing obtains the flying speed as mosquito, the flutter its wings up and down frequency of sound of flight, three dimensional space coordinate, the data such as the real-time phase of sound of fluttering its wings up and down, adopt the filtering combination of analog filter and digital filter, and digital filter is again special integrated digital wave filter (also can realize by microprocessor center cell algorithm), thereby allow system there is special good amplification sensitivity and selective, reach and amplify and there is the flutter its wings up and down mosquito voice frequency of sound of the ground of strong selectivity very detection computations mosquito, the requirement of mosquito sound real-time phase etc., finally realizing observing and controlling measures and the flying speed of calculating corresponding mosquito, the flutter its wings up and down frequency of sound of flight, three dimensional space coordinate, the real time data such as acceleration and time, and storage, can be by serial port/USB mouth output data or communication, go to control startup audible-visual annunciator unit according to above data, with attacking of instruction mosquito.
The sound of fluttering its wings up and down a little less than transmitting, through taper sound collector, input to after amplifier amplification, first export to analog filter, export again digital filter MAX9860 to, further after digital filtering, export to rear class A/D, microprocessor unit, because sound collector is just larger to mosquito sound face area, collect and be converted to the vibration wave of surface area, the amplitude that reaches probe and centrum small end end points junction can strengthen, physically first realize and amplifying, probe connects again and the transaudient vibration plane to microphone (MIC1), the MIC1 output audio signal of telecommunication, again to amplifier unit, first with the highest AGC gain, the highest bandwidth signal acquisition also amplifies, export to again bandwidth self-adaption analog filter, carry out the filtering mosquito tone signal output useful with selection with maximum bandwidth, again to digital filter MAX9860, A/D unit, be converted to data-signal, export microprocessor unit to, make further FFT, final observing and controlling is measured and the flying speed of calculating corresponding mosquito, the flutter its wings up and down frequency of sound of flight, three dimensional space coordinate, the real time datas such as acceleration.
And another road signal that AGC and bandwidth self-adaption amplifier module are sent is through amplitude measurement unit, again after A/D, export to processor unit and the current AGC voltage ratio in it, processor unit sends instruction to AGC and bandwidth self-adaption amplifier module according to structure relatively, upgrade AGC voltage, controlling AGC gain adjusts, upgrade bandwidth and adjust voltage by bandwidth adjustment, allow it have suitable amplifier gain and bandwidth, wave filter is with the suitable bandwidth selection mosquito sound signal of fluttering its wings up and down, thereby reach a signal that both amplifies to greatest extent mosquito sound and amplified with extremely narrow bandwidth selection up and down to greatest extent by line centered by the mosquito voice frequency by current simultaneously the object of the current useful sound signal of fluttering its wings up and down. the in the situation that of three collectors, the sound collection of other two taper sound collector unit and processing need be adjusted to optimum state, repeat above process, gather in real time mosquito tone signal union analyzing and processing until obtain best AGC and bandwidth adjustment data adjustment by microprocessor.
Adopt the combination of analog filter and digital filter filter to there is following characteristics:
Analog filter have reaction speed fast, real-time, almost there is no time delay, there is little etc. the advantage of loss for analog signal to be filtered, and digital filter has utilized the data of current front and back, filter template is symmetrical, thereby do not have a phase shift, analog filter, due to for current point, only has signal in the past to utilize, signal the unknown in the future, be that analog filter is not symmetrical wave filter, thereby must have phase shift. Digital filter is easy to realize with logical device, programming device, and analog filter can not only be realized with logical device, generally needs the combinational circuit of resistance, electric capacity and inductance to realize. Thereby the combination that adopts analog filter and digital filter to filter, respectively get the chief.
Through the analog signal of analog filter output filtering to digital filter unit, selective through the automatic window function of this element excellence, high performance sideband is selective, after the high-performance digital filtering of the selection high sensitivity of useful signal etc., select high cleanliness, the data-signal of the useful audio frequency of fluttering its wings up and down that signal to noise ratio is very high, and be converted to analog signal through D/A, input to again high-speed a/d and be converted to data, export to microprocessor unit and after time amplifying method fast Fourier FFT conversion, be frequently worth with the amplitude of the scale variable analysis signal of frequency domain or phase region and calculating in longer time scale, bandwidth, the data such as envelope, have the effect of " slow motion " that be similar to film, extraordinary with the resolution ratio of wider time domain, and specific stable calibration parameters is observed and detection technique, and its frequency of analyzing and processing, phase place, amplitude, amplitude-frequency parameter, phase frequency parameter, and according to above parameter/repeatedly parameters of many groups of accumulations of measurement, then change previous sequential and according to algorithm, utilize embedded program to calculate the flying speed of corresponding mosquito according to FFT, the flutter its wings up and down frequency of sound of flight, three dimensional space coordinate, acceleration, and real time data etc., and storage, and can be by serial port/USB mouth output data or communication.
Because mosquito acoustical signal signal to noise ratio to be filtered mosquito sound very little, that ambient noise is large, the faint sound of fluttering its wings up and down is almost submerged in the medium reality of stronger background sound, belong to low pass with logical filtering situation, and should eliminate significantly impulse disturbances, do again the application requirements of data smoothing, consider the scheme of selecting FIR wave filter and adaptive equalizing filter. And in frequency domain, design the transfer function of wave filter, multiply each other with the Fourier transformation of primary signal, inversefouriertransform (contrary FFT) again, be converted to again the time-domain signal of digital filter filtering and export to microprocessor and do again FFT processing, then do analysis and the processing of further follow-up data, also transfer function can be made to inversefouriertransform, obtain the template of time domain (one-dimensional signal) or spatial domain (2D signal), just passable to primary signal convolution by template.
These data comprise a certain point, the one-period of sound wave or continuously several cycles, the repeatedly data splitting in some cycles of sampling, these data are for the flying speed of calculating corresponding mosquito, the flutter its wings up and down frequency of sound of flight, three dimensional space coordinate, the real time datas such as acceleration, play the effect of a large amount of reference datas, owing to considering that mosquito when flight surveys the sense sound face of body apart from the audio frequency of this detector, may be on the left side or the right side, while flight in when mosquito flies on the left side or the right side, improve to greatest extent resolution ratio and signal to noise ratio in order to capture mosquito when flight acoustic energy of fluttering its wings up and down, the horizontal layout mode or the three-dimensional sphere arrangement that adopt two sides to arrange respectively. adopt the circular flat of sound body in taper and arranged that on two sides, the cylindrical front and back of rocking bar at least three according to the several years---tens spheroids of spending the formation approximately 4/5 being arranged into are arranged solid space, send scan round instruction by microprocessor in addition and remove successively to scan by MUX at least three MIC sensors the gating of every one side, then according to a series of signal collection and the data handling procedure of carrying out mentioned above, until collect sound signal intensity maximum, when signal to noise ratio is maximum, stop scanning, machine rests on current MIC passage, continue again to gather audio frequency, amplify, FFT, carry out analog filtering and digital filtering, be converted to data, and analyzing and processing obtain require the data or the result that obtain, and output, the benefit of doing is like this to allow detector automatically remove detecting and the scanning mosquito sound sound of fluttering its wings up and down, and the signalling channel of the MIC on the strongest certain of automatic selecting signal quality one side and a certain road, go to gather and go to process, realized the high sensitivity of this detector, the very performance indications of high selectivity, it is likely very faint effectively detecting, signal to noise ratio is very low, the mosquito sound that background sound is the very large sound of fluttering its wings up and down, and calculate other parameters.
Microprocessor and CPU to select speed very fast and the type that has RISC instruction pipeline structure, as DSP, ARM, FPGA, single-chip microcomputer is selected enhancement mode 51 single-chip microcomputers, A/D selects high-speed sampling rate, MUX is selected high speed switch type, to adapt to the mass data processing of this programme and the requirement of reaction at a high speed. Through above step, TT&C system measure with the flying speed that calculates corresponding mosquito, flight flutter its wings up and down sound the real time data such as frequency, three dimensional space coordinate, acceleration and store, by serial port/USB mouth output data or communication, can also go to control startup audible-visual annunciator unit according to correlation type data according to above data, to indicate attacking of mosquito.
The present invention is by the setting of signal capture assembly, and AGC and bandwidth self-adaption amplifier module one tunnel and bandwidth self-adaption analogue filter circuit, digital filter circuit, one tunnel and amplitude measurement unit, then A/D unit is to the processing of processor unit, with the poly-sound of best mode, noise reduction, selection, the finally flying speed of accurate, real-time detecting mosquito, the flight real time data such as frequency, three dimensional space coordinate, acceleration of sound of fluttering its wings up and down, and store and provide output, for catching mosquito, equipment automatization provides technical guarantee.
Above embodiment is the explanation to content of the present invention, not as restriction to content of the present invention, every those skilled in the art on the disclosed basis of the application without creationary variation, all in the application's protection domain.
Claims (5)
1. one kind for detecting the device of mosquito, comprise signal capture assembly, AGC and bandwidth amplifier module, analogue filter circuit, digital filter circuit, amplitude measurement unit, A/D unit and processor unit, described signal capture assembly at least arranges one group, the signal capturing is delivered to AGC and bandwidth amplifier module by signal capture assembly, with the highest AGC gain and the highest bandwidth signal acquisition amplification, then export analogue filter circuit to, carry out filtering and selection with maximum bandwidth, export useful mosquito tone signal to digital filter circuit, and after be data-signal through A/D cell translation, export processor unit to, analyzing and processing obtains amplitude versus frequency characte and the phase-frequency characteristic of representative mosquito acoustical signal wherein, and then picked up signal frequency and band data, the information of three dimensional space coordinate, simultaneously, AGC and bandwidth amplifier module are also exported a road to amplitude measurement unit, and be data-signal through A/D cell translation, export processor unit to, control signal to AGC and bandwidth amplifier module by exporting AGC after processor unit and current AGC voltage ratio, controlling AGC gain adjusts, and the bandwidth of analogue filter circuit also can be adjusted thereupon, to obtain suitable amplifier gain and a bandwidth, analogue filter circuit is with the suitable bandwidth selection mosquito sound signal of fluttering its wings up and down, thereby amplify the signal of mosquito sound, centered by current mosquito voice frequency, line amplifies the current sound signal of fluttering its wings up and down with extremely narrow bandwidth selection up and down simultaneously, flying speed, the flight of repeatedly detecting and calculating corresponding mosquito flutter its wings up and down frequency, three dimensional space coordinate, acceleration and the temporal information of sound, then stored or exported by processor unit.
2. according to claim 1 for detecting the device of mosquito, it is characterized in that: described signal capture assembly comprises the tubaeform sound body that collects, be arranged on the tubaeform probe that collects sound body osculum end, the sound transducer of the linking probe other end.
3. according to claim 1 for detecting the device of mosquito, it is characterized in that: described AGC and bandwidth amplifier module are AGC and bandwidth self-adaption amplifier module, and described analogue filter circuit is bandwidth self-adaption analogue filter circuit.
4. according to claim 1 for detecting the device of mosquito, it is characterized in that: amplitude versus frequency characte and phase-frequency characteristic that described analyzing and processing obtains representative mosquito acoustical signal wherein refer to: taking initial data as source data, or data after FFT conversion time-domain signal broadening, subsequent treatment data are more optimized, obtain amplitude versus frequency characte and the phase-frequency characteristic of representative mosquito acoustical signal wherein with digital technology analysis and processing, further picked up signal frequency and band data, three dimensional space coordinate information.
5. according to claim 1 for detecting the device of mosquito, it is characterized in that: when described signal capture assembly arranges two groups or more, between each group with circumferentially-spaced or be that sphere-like is three-dimensional to distribute, in the time of circumferentially-spaced, between many group signal capture assemblies and AGC and bandwidth amplifier module, be connected by MUX, send scan round instruction and scan by MUX successively sound transducer the gating of every one side by processor unit, then carry out signals collecting and data processing, until collect sound signal intensity maximum, signal to noise ratio stops scanning when maximum, rest on sound transducer passage now, continue to gather audio frequency, amplify and carry out analog filtering and digital filtering, be converted to data, the data that analyzing and processing obtains or result output, in the time being that sphere-like is three-dimensional to distribute, send scan round instruction and scan by MUX successively at least three sound transducers the gating of every one side by processor unit.
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| CN201610100407.0A CN105588609A (en) | 2016-02-24 | 2016-02-24 | Device used for detecting mosquitoes |
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| CN201610100407.0A CN105588609A (en) | 2016-02-24 | 2016-02-24 | Device used for detecting mosquitoes |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106417220A (en) * | 2016-09-30 | 2017-02-22 | 叶志刚 | Intelligent net drawing and mosquito catching system |
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| CN1283036A (en) * | 1999-07-29 | 2001-02-07 | 松下电器产业株式会社 | Noice detector, noise detection method, signal precessor and signal processing method |
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Application publication date: 20160518 |