CN2529267Y - Radar non-contact life parameter detecting device - Google Patents
Radar non-contact life parameter detecting device Download PDFInfo
- Publication number
- CN2529267Y CN2529267Y CN 02224624 CN02224624U CN2529267Y CN 2529267 Y CN2529267 Y CN 2529267Y CN 02224624 CN02224624 CN 02224624 CN 02224624 U CN02224624 U CN 02224624U CN 2529267 Y CN2529267 Y CN 2529267Y
- Authority
- CN
- China
- Prior art keywords
- circuit
- output terminal
- input termination
- pass filter
- integrated circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Radar Systems Or Details Thereof (AREA)
Abstract
The utility model relates to a radar non-contact life parameter detecting device, which comprises two front-built amplifying stages, a demodulator circuit, two low pass filters, three high pass filters, a front-built circuit, an amplifying circuit, a switch circuit, a buffer stage, a low pass filters group selective circuit, an emitting device, a power amplifying stage, a sound speaker, a back circuit, two changeable gain amplification circuits, two power frequency trap filter circuits, and two photoelectric coupled circuits. The utility model treats the frequency sweep and point frequency output by the radar, and makes the breathing and heart beating signals of live people taken out for separating and amplifying to be send out. The utility model can be used for seeking the live people under the wasteland or at the back of the barrier with non-contact monitoring.
Description
Technical field
The utility model belongs to the measurement that is diagnosed as purpose or recording method or Instrument technology field, is specifically related to the contactless life parameters sniffer of radar.
Background technology
Number of patent application is 88100975, denomination of invention is the Chinese patent of " portable physiological monitor ", comprise the multifunctional electrodes that is installed in the structural arrangement triangular in shape in the same plane, handle the Electrocardiogram that multifunctional electrodes detects by monitor, sound, temperature and conductivity information, and display simulation waveform periodically on visible display, one or more cardiac rate numerals, temperature digital and respiratory rate numeral.The medical worker obtains the necessary mark of earning a bare living of patient in real time.This patent is portable, need connect multifunctional electrodes on one's body the testee, belongs to the contact monitoring instrument, can't survey the living person that whether has under the ruins of building collapse or behind the barrier, can not carry out remote monitoring to patient.
Number of patent application is 95191869.9, denomination of invention is the Chinese patent of " method and apparatus of sensing living bodies ", is the method and apparatus that is used for sensing living person body, adopts electromagnetic signal and a receiver that is used for this electromagnetic signal.The detection of vital functions can allow to find the people that buried, and human observer can distinguish living person and dead person, also be applicable to the vital functions that monitors the people in the buildings or be used for the sensing patient, the receiver that is used for electromagnetic signal has a mechanism that extracts the frequency content feature of live organism from electromagnetic signal.This patent adopts emitter to separate with receiving trap, and the electromagnetic wave signal fixed-frequency is not easy to use.
Number of patent application is that 00226272.X, denomination of invention are the Chinese patent of " mickeys' torch ", it is a kind of flashlight type radar, front end at flashlight shell is provided with an emission and receiving antenna, in flashlight shell, be provided with a microwave radiating circuit and receive identification circuit, the microwave radiating circuit is made of microwave oscillator, emission is connected in the microwave oscillator as the vibration inductance with receiving antenna, receives identification circuit and is connected and composed successively by frequency-selecting amplifier, voltage comparator, single stabilization delay circuit, driving circuit, warning executive circuit at least.It utilizes the principle of radar detection and is found target exactly by visiting relatively moving between thing and the electric torch.This patent is used for goal seeking, but can't find out the character of target, promptly is static target or the target that fine motion is arranged, and does not also monitor the fine motion information of target, does not possess the ability that penetrates barrier.
Summary of the invention
Technical problem to be solved in the utility model and to solve the technical scheme that its technical matters adopts be that it comprises:
Preamplifier state, the swept-frequency signal output terminal of input termination radar.Demodulator circuit, the output terminal of input termination preamplifier state.Low-pass filter, the output terminal of input termination demodulator circuit.Hi-pass filter, the output terminal of input termination low-pass filter.Front end circuit, the point-frequency signal output terminal of input termination radar.Amplifying circuit, the output terminal of input termination front end circuit.Change-over circuit, input termination amplifying circuit, the output terminal of Hi-pass filter and the PC digital input end that will connect calculating.Buffer stage, input end connect the output terminal of conversion circuit.Low-pass filter group selection circuit, the output terminal of input termination buffer stage.Another Hi-pass filter, the output terminal of input termination low-pass filter group selection circuit.Emitter follower, the output terminal of another Hi-pass filter of input termination.Another preamplifier state, the output terminal of input termination emitter follower.Power-amplifier stage, the output terminal of another preamplifier state of input termination.Loudspeaker, the output terminal of input termination power-amplifier stage.Another low-pass filter, the output terminal of input termination emitter follower.Variable-gain amplification circuit, the output terminal of another low-pass filter of input termination.The power frequency notch filter circuit, the output terminal of input termination variable-gain amplification circuit.Reset circuit, the output terminal of input termination power frequency notch filter circuit, output termination emitter follower.The photoelectricity coupled circuit, the output terminal of input termination power frequency notch filter circuit, output breath signal.It also comprises the 3rd Hi-pass filter, the output terminal of input termination emitter follower.Another variable-gain amplification circuit, the output terminal of the 3rd Hi-pass filter of input termination.Another power frequency notch filter circuit, the output terminal of another variable-gain amplification circuit of input termination.Another photoelectricity coupled circuit, the output terminal of another power frequency notch filter circuit of input termination, the moving signal of output heartbeat body.
The utility model is compared with the Chinese patent of " portable physiological monitor ", " method and apparatus of sensing living bodies ", " mickeys' torch ", the utility model is handled frequency sweep and two kinds of radar echo signals of some frequency of contactless radar output, feeble signals such as the breathing of the human body of the work of modulating in the radar echo signal and heartbeat body be moving are extracted, and separate and amplify, the life signal waveform of these extractions has reflected living person's corresponding vital signs truly, and the input computing machine carries out data processing.It has surveys advantages such as accurate, that speed of detection is fast, easy to use.Can be used for seeking occasions such as living person under the ruins or behind the barrier, noncontact monitoring, the unwitting noncontact monitoring of tested person.
Description of drawings
Fig. 1 is the utility model electrical principle block scheme.
Fig. 2 is the electronic circuit schematic diagram that frequency sweep of the present utility model/point-frequency signal is handled.
Fig. 3 is low-pass filter group of the present utility model and monitoring and automatically reset electronic circuit schematic diagram.
Fig. 4 is the electronic circuit schematic diagram of the moving Signal Separation output of breathing of the present utility model and body aroused in interest.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described, but the utility model is not limited to these embodiment.
Fig. 1 is the utility model electrical principle block scheme, referring to Fig. 1.
In Fig. 2, swept-frequency signal treatment circuit of the present utility model is connected and composed successively by preamplifier state, demodulator circuit, low-pass filter, Hi-pass filter.
The preamplifier state of present embodiment is connected and composed by integrated circuit U101～integrated circuit U104, diode D101～diode D102, R101～R112, C101, and the model of integrated circuit U101～integrated circuit U104 is THS4001.The positive input of integrated circuit U101 connects the end of negative pole, R101 and R102 of positive pole, the diode D102 of diode D101, the other end ground connection of the positive pole of the negative pole of diode D101, diode D102 and R102, the end of another termination C101 of R101, another termination radar swept-frequency signal output terminal of C101, the inverting input of integrated circuit U101 connects output terminal by R103.Output terminal, positive input that the inverting input of integrated circuit U102 connects output terminal by R106 and meets integrated circuit U101 by R104 are by R105 ground connection.Integrated circuit U103 is identical with the connecting relation that encloses part with integrated circuit U102 with the annexation of peripheral element R107～R109, integrated circuit U104 peripheral element R110～R112.
The demodulator circuit of present embodiment is connected and composed by integrated circuit U105, diode D103, diode D104, R113～R115, and the model of integrated circuit U105 is THS4001.Output terminal, normal phase input end that the inverting input of integrated circuit U105 connects the end of the positive pole of diode D103 and R115 and meets integrated circuit U104 by R113 are by R114 ground connection, the negative pole of output terminating diode D103 and the positive pole of diode D104, and the negative pole of diode D104 connects the other end and the low-pass filter of R115.
The low-pass filter of present embodiment is connected and composed by R116, R117, C102, C103.The end of negative pole, another termination R117 and the C102 of the termination demodulator circuit diode D104 of R116, an end and the Hi-pass filter of another termination C103 of R117, the other end ground connection of C102 and C103.
The Hi-pass filter of present embodiment is connected and composed by R118, R119, C104.The end of the termination low-pass filter R117 of R118 and C104, the other end and the change-over circuit of the termination C104 of R119, the other end ground connection of R118 and R119.
The frequency sweep input signal is from the swept-frequency signal output terminal of radar, and its waveform is the modulated wave signal, and its carrier wave is the range information of testee, and modulation signal comprises the breathing of human body, body aroused in interest is moving and undesired signal.The swept-frequency signal of radar is coupled through preamplifier state C101; R101, diode D101, diode D102 limiter protection circuit are sent into the prestage emitter follower circuit that is made of integrated circuit U101; and behind three grades of inverting amplifiers that integrated circuit U102, integrated circuit U103, integrated circuit U104 constitute; send into demodulator circuit, demodulate human body respiration signal, the moving signal of body aroused in interest and undesired signal.For preventing that the undesired signal of DC component and upper frequency is coupled to late-class circuit in the demodulated output signal, demodulated output signal is exported after low-pass filter and high pass filter filters.
Point-frequency signal treatment circuit of the present utility model is connected successively by front end circuit, amplifying circuit and constitutes.
The front end circuit of present embodiment is connected and composed by integrated circuit U106A, diode D105, diode D106, R120, R121, and the model of integrated circuit U106A is TLE2074.The normal phase input end of integrated circuit U106A connects the negative pole of the positive pole of diode D105 and diode D106 and connects radar points by R120 that signal output part, inverting input connect output terminal and amplifying circuit by R121, the plus earth of the negative pole of diode D105 and diode D106 frequently.
The amplifying circuit of present embodiment is connected and composed by integrated circuit U106B, integrated circuit U106C, R122～R130, C105, C106, and the model of integrated circuit U106B, integrated circuit U106C is TLE2074.The inverting input of integrated circuit U106B connects the end of R124 and C105 and connects the output terminal of the integrated circuit U106A of front end circuit by R122, normal phase input end is by R123 ground connection, the other end of output termination R124 and C105 and the end of R125 also connect the normal phase input end of integrated circuit U106C by R126, the other end ground connection of R123 and R125, the inverting input of integrated circuit U106C connects the end of output terminal and R129 and the end of C106 by R127 ground connection and by R128, the other end ground connection of R129, the other end of C106 is by R130 ground connection and connect the conversion circuit.
Point-frequency signal from radar; frequency is moving signal of the breath signal of 0.03Hz～45Hz scope, body aroused in interest and undesired signal; the limiter protection circuit that point-frequency signal constitutes through R120, diode D105, diode D106 is sent into the emitter follower circuit that integrated circuit U106A constitutes, again through amplifying circuit to obtain the sufficient intensity signal.C106 is a capacitance, and the offset voltage of avoiding this circuit to produce makes the saturated generation distorted signals of late-class circuit even can't work.
Change-over circuit of the present utility model is connected and composed by integrated circuit U107, relay U108, triode T101, diode D107, diode D108, R131～R134, C107～C109, the model of integrated circuit U107 is that 4N32 is a photoelectrical coupler, and the model of relay U108 is SRS-12VDC.The light emitting diode positive pole of integrated circuit U107 connects the PC digital input interface by R131, minus earth, the transistor base of integrated circuit U107 connects the end of C107 and passes through R133 ground connection, collector connects the anodal of diode D107 and connects the 12v positive source by R132, the other end ground connection of C107, the negative pole of diode D107 connects the base stage of triode T101 and the end of C108 by R134, the other end ground connection of C108, the collector of triode T101 connects positive pole and the end of C109 and 2 pin of relay U108 of diode D108, and 1 pin of relay U108 connects the other end of amplifying circuit C106,3 pin connect 4 pin and connect buffer stage, 5 pin connect the negative pole of diode D108 and the other end of C109,6 pin connect the end of the R119 of Hi-pass filter.The A/D interface board of PC sends into 0/1 binary signal for this circuit, realize digitally isolation with simulation ground through R131, integrated circuit U107 interface circuit, gating through diode D107, R134, C108, triode T101 pilot relay U108 reaches the control purpose.When PC sent 0 signal, relay U108 often was in and opens, and circuit state is the frequency sweep state; When PC sent 1 signal, relay U108 was in normally closed, and circuit state is some frequency state.From the frequency sweep/point-frequency signal of radar, undertaken exporting after the gating by on-off circuit.
In Fig. 3, low-pass filter group of the present utility model and monitoring and automatic reset circuit are to be connected and composed by buffer stage, low-pass filter group, Hi-pass filter, reset circuit, emitter follower, preamplifier state, power-amplifier stage, loudspeaker, and wherein preamplifier state, power-amplifier stage, loudspeaker connect into monitoring circuit.
The buffer stage of present embodiment is to be connected and composed by integrated circuit U106D, diode D201, diode D202, R201～R203, and the model of integrated circuit U106D is TLE2074.The normal phase input end of integrated circuit U106D connects the negative pole of the positive pole of diode D201 and diode D202 and connects output terminal and low-pass filter group by R202 ground connection and by R203, the plus earth of the negative pole of diode D201 and diode D202 by 4 pin, inverting input that R201 meets conversion circuit relay U108.
The low-pass filter group of present embodiment is to be connected and composed by integrated circuit U201A～integrated circuit U201D, integrated circuit U202A～integrated circuit U202D, integrated circuit U203A, integrated circuit U203B, R204～R233, C201～C220, selector switch SW201, and the model of integrated circuit U201A～integrated circuit U201D, integrated circuit U202A～integrated circuit U202D, integrated circuit U203A, integrated circuit U203B is TLE2074.Integrated circuit U201A, integrated circuit U201B, R204～R209, C201～C204 connects into quadravalence Chebyshev 1dB low-pass filter, integrated circuit U201C, integrated circuit U201D, R210～R215, C205～C208 connects into quadravalence Chebyshev 1dB low-pass filter, integrated circuit U202A, integrated circuit U202B, R216～R221, C209～C212 connects into quadravalence Chebyshev 1dB low-pass filter, integrated circuit U202C, integrated circuit U202D, R222～R227, C213～C216 connects into quadravalence Chebyshev 1dB low-pass filter, integrated circuit U203A, integrated circuit U203B, R228～R233, C217～C220 connects into quadravalence Chebyshev 1dB low-pass filter.The output terminal of integrated circuit U201B, integrated circuit U201D, integrated circuit U202B, integrated circuit U202D, integrated circuit U203B selecting is respectively selected 5 contacts of closing SW201, and the switch of selecting to close SW201 connects Hi-pass filter.The low-pass filter group is finished passing through pretreated radar frequency sweep of buffer stage or point-frequency signal through the low-pass filtering by five road quadravalence Chebyshev 1dB low-pass filters, the high frequency clutter that filtering and people's physiological signal is irrelevant, selector switch SW201 adopts the mechanical switch switch, according to carrying out the wave filter manual switchover, output signal is to Hi-pass filter.
The Hi-pass filter of present embodiment is connected and composed by R301, R302, C301.The termination low-pass filter group selection of C301 is closed the switch, another termination emitter follower of SW201 and is connect an end and the emitter follower of R302, the other end ground connection of R302 by R301.With the irrelevant flip-flop of people's physiological signal, prevent that late-class circuit is because of the obstruction cisco unity malfunction in the Hi-pass filter filtering prime signal.
The emitter follower of present embodiment is to be connected and composed by integrated circuit U301A, R303, R304, and the model of integrated circuit U301A is TLE2074.An end, inverting input that the normal phase input end of integrated circuit U301A meets Hi-pass filter R302 connect an end and the preamplifier state of output terminal and R304 by R303 and connect breathing and the aroused in interest and moving Signal Separation output circuit of body, the other end ground connection of R304.Emitter follower with filtering after signal output.
The preamplifier state of present embodiment is connected and composed by integrated circuit U301B, R322～R325, selector switch SW301, and the model of integrated circuit U301B is TLE2074.The normal phase input end of integrated circuit U301B by the R322 selecting select switch SW 301 the contact and by R324 connect output terminal, inverting input by R323 ground connection, output terminal by R235 ground connection and R324 the other end and connect power-amplifier stage, the switch of selector switch SW301 connects the output terminal of emitter follower integrated circuit U301A.
The power-amplifier stage of present embodiment is connected and composed by triode T307, triode T308, diode D309, diode D310, R326～R330, C303.The negative pole of diode D309 connects the positive pole of diode D310 and the end of C303 also passes through R326 ground connection, the output terminal of another termination preamplifier state integrated circuit U301B of C303, the positive pole of diode D309 connects the base stage of triode T307 and connects collector and the 12v positive source of triode T307 by R327, the negative pole of diode D310 connects the base stage of triode T308 and connects collector and the 12v power cathode of triode T308 by R329, and the emitter of triode T307 connects the emitter of triode T308 by R328, R330.
Between the R328 and R330 of one termination power-amplifier stage of the loudspeaker of present embodiment, other end ground connection.
Connect into monitoring circuit by preamplifier state, power-amplifier stage, loudspeaker, to the signal after process pre-service, low pass and the high-pass filtering, the moving physiologic information of breathing, heartbeat body that includes the people is monitored.
The reset circuit of present embodiment is connected and composed by integrated circuit U301C, integrated circuit U301D, triode T301～triode T306, diode D301～diode D308, R305～R321, C302.The two ends, grounded collector, base stage that the emitter of triode T301 and triode T302 meets R301 respectively connect the anodal of the collector of triode T304 and diode D301 and connect the 12v power cathode by R306 by R305, the negative pole of diode D301 connects the base stage of triode T303 and the end of R308 by R307, the other end ground connection of R308, the collector of triode T303 connects the 12v positive source, emitter connects the anodal of diode D308 and will connect computing machine invalid signals indication output end, and the negative pole of diode D308 is by R309 ground connection.The base stage of triode T304 connects the end of R314 and connects the end that 12v positive source and emitter, collector meet R310 and C302 by R313.The base stage of triode T305 connects the end of R312 and connects negative pole and the negative pole of diode D303 and the end of C302 of diode D302 by R311, collector connects positive pole and the other end of R314 and the end of R315 of diode D303, the other end ground connection of the positive pole of diode D302 and the other end of R310 and R312, the base stage of triode T306 connects the anodal of diode D304 and connects the positive pole of diode D305 by R317, collector is by R315 ground connection, emitter connects the 12v positive source, the negative pole of diode D304 connects the 12v positive source by R316, the negative pole of diode D305 connects the positive pole of diode D306 and diode D307, the negative pole of diode D306 connects the output terminal of integrated circuit U301C, the negative pole of diode D307 connects the output terminal of integrated circuit U301D, the normal phase input end of integrated circuit U301C connects the 12v positive source and passes through R319 ground connection by R318, the inverting input of integrated circuit U301D connects the 12v power cathode by R320 and by R321 ground connection, the normal phase input end of the inverting input of integrated circuit U301C and integrated circuit U301D connects the power frequency notch filter circuit.The resetting of circuit when reset circuit is finished invalid signals produced, and have the delayed recovery function, give an invalid signals indication of PC level simultaneously, reset signal is taken from the prime of the photoelectricity coupled circuit of breath signal passage.
In Fig. 4, the moving Signal Separation output circuit of breathing of the present utility model and body aroused in interest is connected into by low-pass filter, Hi-pass filter, two variable-gain amplification circuits, two power frequency notch filter circuit, two photoelectricity coupled circuits, wherein low-pass filter, variable-gain amplification circuit, power frequency notch filter circuit, photoelectricity coupled circuit connect into breath signal separation output circuit, and Hi-pass filter, another variable-gain amplification circuit, another power frequency notch filter circuit, another photoelectricity coupled circuit connect into the moving Signal Separation output circuit of body aroused in interest
The low-pass filter of present embodiment is to connect into quadravalence Chebyshev 1dB low-pass filter by integrated circuit U401A, integrated circuit U401B, R400～R409, C400～C403, and the model of integrated circuit U401A, integrated circuit U401B is TLE2074.
The variable-gain amplification circuit of present embodiment is connected and composed by integrated circuit U402A, diode D400, diode D401, R410～R416, C404～C406, selector switch SW400, and the model of integrated circuit U402A is TLE2074.The normal phase input end of integrated circuit U402A connects the end of the negative pole of the positive pole of diode D400 and diode D401 and R411 and connects the end of C404 by R410, inverting input connects the switch of the end of C405 and selector switch SW400 and by R412 ground connection, the other end and the end of C406 and the end of R413～R416 of output termination C405, the output terminal of the integrated circuit U401B of another termination low-pass filter of C404, the positive pole of diode D400, the negative pole of diode D401, the other end ground connection of R411 and R411, the other end of R413～R416 selecting is respectively selected 4 contacts of switch SW 400, another termination power frequency notch filter circuit of C406.
The power frequency notch filter circuit of present embodiment is connected and composed by integrated circuit U402B, integrated circuit U403A, R417～R424, potentiometer RT400, potentiometer RT401, C407, C408, and the model of integrated circuit U402B, integrated circuit U403A is TLE2074.The positive input end grounding of integrated circuit U402B, inverting input connects the end of R421 and C407, the other end of output termination R421 and the end of C408 also connect the normal phase input end of integrated circuit U403A and the end of R419 by R422, the end of another termination R420 of C407, the end of potentiometer RT400 and the other end of adjustable end and C408, the other end of potentiometer RT400 connects an end and the other end of R419 and the other end of variable-gain amplification circuit C406 of R417 by R418, the end of another termination potentiometer RT401 of R420, the other end ground connection of the other end of potentiometer RT401 and adjustable end and R417.The inverting input of integrated circuit U403A is by R423 ground connection and connect the inverting input of the integrated circuit U301C of output terminal and photoelectricity coupled circuit and reset circuit by R424.
The photoelectricity coupled circuit of present embodiment is connected and composed by integrated circuit U403B, integrated circuit U404A, integrated circuit U405A, integrated circuit U405B, R425～R434, potentiometer RT402, C409, C410, the model of integrated circuit U403B, integrated circuit U404A is TLE2074, the model of integrated circuit U405A, integrated circuit U405B is TLP521/2, is photoelectrical coupler.The normal phase input end of integrated circuit U403B connects the transistor collector of integrated circuit U405A and connects the 12v positive source and connect the output terminal of the integrated circuit U403A of power frequency notch filter circuit by R425 by R426, inverting input is by R427 ground connection, the diode cathode of output termination integrated circuit U405B, the transistor emitter of integrated circuit U405A connects the 12v power cathode, the diode cathode of integrated circuit U405A is by R428 ground connection, negative pole connects the diode cathode of integrated circuit U405B, the collector of integrated circuit U405B triode connects the normal phase input end of integrated circuit U404A, the end of R431 and R432, and connect the 9v positive source by R429 and potentiometer RT402, the emitter of integrated circuit U405B triode connects the 9v power cathode, the inverting input of integrated circuit U404A is by R430 ground connection, the output termination R431 of integrated circuit U404A and the end of C409, by R433 ground connection, and will be connected with computing machine by R434, the other end of another termination R432 of C409, C410 connects between the other end and ground of R434.
The breath signal that is linked to be by above low-pass filter, variable-gain amplification circuit, power frequency notch filter circuit, photoelectricity coupled circuit separates output circuit, to after low-pass filtering, isolating 0.03～0.6Hz people's breath signal through the electric signal of emitter follower output, to breath signal gain amplification, through power frequency notch filter circuit filtering 50Hz power frequency interference signals, realize simulation ground and isolation digitally by the photoelectricity coupled circuit at last, to computing machine output breath signal.In addition, the power frequency notch filter circuit also provides reseting controling signal to reset circuit.
The Hi-pass filter of present embodiment is to connect into quadravalence Chebyshev 1dB Hi-pass filter by integrated circuit U401C, integrated circuit U401D, R450～R459, C450～C453, and the model of integrated circuit U401C, integrated circuit U401D is TLE2074.Another variable-gain amplification circuit of present embodiment is connected and composed by integrated circuit U402C, diode D450, diode D451, R460～R466, C454～C456, selector switch SW450, the model of integrated circuit U402C is TLE2074, and its annexation and previous variable-gain amplification circuit are identical.Another power frequency notch filter circuit of present embodiment is connected and composed by integrated circuit U402D, integrated circuit U403C, R467～R474, potentiometer RT450, potentiometer RT451, C457, C458, the model of integrated circuit U402D, integrated circuit U403C is TLE2074, and its annexation and previous power frequency notch filter circuit are identical.Another photoelectricity coupled circuit of present embodiment is connected and composed by integrated circuit U403D, integrated circuit U404D, integrated circuit U406A, integrated circuit U406B, R475～R484, potentiometer RT452, C459, C460, the model of integrated circuit U403D, integrated circuit U404D is TLE2074, the model of integrated circuit U406A, integrated circuit U406B is TLP521/2, be photoelectrical coupler, its annexation and previous photoelectricity coupled circuit are identical.
The circuit that is linked to be by above Hi-pass filter, variable-gain amplification circuit, power frequency notch filter circuit, photoelectricity coupled circuit, to after low-pass filtering, isolate 0.7～45Hz people's the moving signal of heartbeat body through the electric signal of emitter follower output, to the moving signal of heartbeat body gain amplification, through power frequency notch filter circuit limitations power frequency, realize simulation ground and isolation digitally by the photoelectricity coupled circuit at last, to the moving signal of computing machine output heartbeat body.
Claims (1)
1, the contactless life parameters sniffer of a kind of radar is characterized in that it comprises:
Preamplifier state, the swept-frequency signal output terminal of input termination radar;
Demodulator circuit, the output terminal of input termination preamplifier state;
Low-pass filter, the output terminal of input termination demodulator circuit;
Hi-pass filter, the output terminal of input termination low-pass filter;
Front end circuit, the point-frequency signal output terminal of input termination radar;
Amplifying circuit, the output terminal of input termination front end circuit;
Change-over circuit, input termination amplifying circuit, the output terminal of Hi-pass filter and the PC digital input end that will connect calculating;
Buffer stage, input end connect the output terminal of conversion circuit;
Low-pass filter group selection circuit, the output terminal of input termination buffer stage;
Another Hi-pass filter, the output terminal of input termination low-pass filter group selection circuit;
Emitter follower, the output terminal of another Hi-pass filter of input termination;
Another preamplifier state, the output terminal of input termination emitter follower;
Power-amplifier stage, the output terminal of another preamplifier state of input termination;
Loudspeaker, the output terminal of input termination power-amplifier stage;
Another low-pass filter, the output terminal of input termination emitter follower;
Variable-gain amplification circuit, the output terminal of another low-pass filter of input termination;
The power frequency notch filter circuit, the output terminal of input termination variable-gain amplification circuit;
Reset circuit, the output terminal of input termination power frequency notch filter circuit, output termination emitter follower;
The photoelectricity coupled circuit, the output terminal of input termination power frequency notch filter circuit, output breath signal;
It also comprises the 3rd Hi-pass filter, the output terminal of input termination emitter follower;
Another variable-gain amplification circuit, the output terminal of the 3rd Hi-pass filter of input termination;
Another power frequency notch filter circuit, the output terminal of another variable-gain amplification circuit of input termination;
Another photoelectricity coupled circuit, the output terminal of another power frequency notch filter circuit of input termination, the moving signal of output heartbeat body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02224624 CN2529267Y (en) | 2002-03-15 | 2002-03-15 | Radar non-contact life parameter detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02224624 CN2529267Y (en) | 2002-03-15 | 2002-03-15 | Radar non-contact life parameter detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2529267Y true CN2529267Y (en) | 2003-01-01 |
Family
ID=33701999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02224624 Expired - Fee Related CN2529267Y (en) | 2002-03-15 | 2002-03-15 | Radar non-contact life parameter detecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2529267Y (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102008291A (en) * | 2010-10-11 | 2011-04-13 | 中国人民解放军第四军医大学 | Single-channel UWB-based radar type life detection instrument for multi-target detection |
| WO2012055148A1 (en) * | 2010-10-27 | 2012-05-03 | 中国人民解放军第四军医大学 | Multichannel ultra wide band based (uwb-based) radar life detector and positioning method thereof |
| CN102440780A (en) * | 2010-09-09 | 2012-05-09 | 西铁城控股株式会社 | Safety monitoring device |
| CN102488520A (en) * | 2011-10-27 | 2012-06-13 | 中国人民解放军第四军医大学 | Radar life body information extracting and processing system for monitoring life information |
| CN102509419A (en) * | 2011-10-31 | 2012-06-20 | 中国人民解放军第四军医大学 | Wireless driver fatigue monitoring device |
| CN102499653A (en) * | 2011-10-27 | 2012-06-20 | 中国人民解放军第四军医大学 | Signal processing system for small-scale radar life detecting instrument |
| CN102508256A (en) * | 2011-11-23 | 2012-06-20 | 中国科学院微电子研究所 | Non-contact real-time physiological signal monitoring system |
| CN102835958A (en) * | 2011-06-20 | 2012-12-26 | 山东省普来特能源与电器研究院 | Human vital sign remote monitoring device |
| CN102988051A (en) * | 2012-12-13 | 2013-03-27 | 中国人民解放军第四军医大学 | Device and method for monitoring health of computer operator |
| CN103083002A (en) * | 2011-11-02 | 2013-05-08 | 西铁城控股株式会社 | Safety monitoring device |
| CN103110422A (en) * | 2012-12-18 | 2013-05-22 | 中国人民解放军第四军医大学 | Breath and heartbeat real-time separating method based on biological radar detection |
| CN101473243B (en) * | 2006-06-30 | 2013-12-04 | 艾利森电话股份有限公司 | Method of electronic holding measuring system, usage and device of the method |
| CN103616729A (en) * | 2013-11-06 | 2014-03-05 | 中国人民解放军第四军医大学 | UWB bio-radar-based multiple-human body object estimation method and system |
| CN108378830A (en) * | 2018-03-09 | 2018-08-10 | 芜湖博高光电科技股份有限公司 | It is a kind of to monitor the non-contact vital sign survey meter fallen down |
| CN109828240A (en) * | 2019-03-21 | 2019-05-31 | 中国电子科技集团公司第三十八研究所 | A kind of analog baseband circuitry and 77GHz car radar |
-
2002
- 2002-03-15 CN CN 02224624 patent/CN2529267Y/en not_active Expired - Fee Related
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101473243B (en) * | 2006-06-30 | 2013-12-04 | 艾利森电话股份有限公司 | Method of electronic holding measuring system, usage and device of the method |
| CN102440780A (en) * | 2010-09-09 | 2012-05-09 | 西铁城控股株式会社 | Safety monitoring device |
| CN102440780B (en) * | 2010-09-09 | 2015-08-19 | 柯尼卡美能达株式会社 | Safety whether monitoring arrangement |
| CN102008291A (en) * | 2010-10-11 | 2011-04-13 | 中国人民解放军第四军医大学 | Single-channel UWB-based radar type life detection instrument for multi-target detection |
| CN102008291B (en) * | 2010-10-11 | 2012-11-14 | 中国人民解放军第四军医大学 | Single-channel UWB-based radar type life detection instrument for multi-target detection |
| WO2012055148A1 (en) * | 2010-10-27 | 2012-05-03 | 中国人民解放军第四军医大学 | Multichannel ultra wide band based (uwb-based) radar life detector and positioning method thereof |
| CN102835958A (en) * | 2011-06-20 | 2012-12-26 | 山东省普来特能源与电器研究院 | Human vital sign remote monitoring device |
| CN102488520A (en) * | 2011-10-27 | 2012-06-13 | 中国人民解放军第四军医大学 | Radar life body information extracting and processing system for monitoring life information |
| CN102499653A (en) * | 2011-10-27 | 2012-06-20 | 中国人民解放军第四军医大学 | Signal processing system for small-scale radar life detecting instrument |
| CN102509419A (en) * | 2011-10-31 | 2012-06-20 | 中国人民解放军第四军医大学 | Wireless driver fatigue monitoring device |
| CN102509419B (en) * | 2011-10-31 | 2013-06-05 | 中国人民解放军第四军医大学 | Wireless driver fatigue monitoring device |
| CN103083002A (en) * | 2011-11-02 | 2013-05-08 | 西铁城控股株式会社 | Safety monitoring device |
| CN102508256A (en) * | 2011-11-23 | 2012-06-20 | 中国科学院微电子研究所 | Non-contact real-time physiological signal monitoring system |
| CN102988051A (en) * | 2012-12-13 | 2013-03-27 | 中国人民解放军第四军医大学 | Device and method for monitoring health of computer operator |
| CN103110422A (en) * | 2012-12-18 | 2013-05-22 | 中国人民解放军第四军医大学 | Breath and heartbeat real-time separating method based on biological radar detection |
| CN103616729A (en) * | 2013-11-06 | 2014-03-05 | 中国人民解放军第四军医大学 | UWB bio-radar-based multiple-human body object estimation method and system |
| CN103616729B (en) * | 2013-11-06 | 2016-05-18 | 中国人民解放军第四军医大学 | A kind of multiple human body target evaluation methods and system based on UWB bioradar |
| CN108378830A (en) * | 2018-03-09 | 2018-08-10 | 芜湖博高光电科技股份有限公司 | It is a kind of to monitor the non-contact vital sign survey meter fallen down |
| CN109828240A (en) * | 2019-03-21 | 2019-05-31 | 中国电子科技集团公司第三十八研究所 | A kind of analog baseband circuitry and 77GHz car radar |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2529267Y (en) | Radar non-contact life parameter detecting device | |
| CA2076899C (en) | Video image processor and method for detecting vehicles | |
| CN110045370A (en) | Human perception method and its system based on millimetre-wave radar | |
| CN104718464B (en) | Radiography imaging device and method | |
| CN110233633A (en) | A kind of data transfer of computer system based on Internet of Things | |
| CN103366483A (en) | Monitoring alarm system | |
| CN109561299A (en) | One kind being used for monitor camera intelligent fault analysis equipment | |
| CN105957287B (en) | A kind of tamper-proof early warning system and method for overhead transmission line | |
| CN112232211A (en) | Intelligent video monitoring system based on deep learning | |
| CN112690270A (en) | High-voltage transmission line pole tower bird-detecting and bird-repelling system and method based on millimeter wave radar | |
| CN101411190B (en) | Spurious motion filter | |
| CN111144252A (en) | Monitoring and early warning method for people stream analysis | |
| JP3461190B2 (en) | Image monitoring device | |
| CN106656363B (en) | Parameter extraction circuit of broadcast monitoring receiver and parameter extraction method thereof | |
| CN116259152A (en) | Indoor personnel activity detection device | |
| JP3216385B2 (en) | Target detection and tracking device | |
| CN205176629U (en) | Network information terminal is used to agricultural | |
| CN211933899U (en) | Cleaning robot | |
| CN103353604A (en) | X-ray imaging system | |
| CN208421116U (en) | A kind of voltage induced formula protection against electric shock circuit and anti-electric shock apparatus | |
| CN207150731U (en) | A kind of long-distance video meets with device | |
| CN106060472A (en) | Intelligent device cloud platform management system | |
| EP0202695B1 (en) | Apparatus for echo-ultrasound imaging using compound am-fm detection with increased dynamic range | |
| CN204465737U (en) | clearance detection system | |
| CN215415720U (en) | Live detection device for partial discharge of medium-voltage cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |