CN106600902A - Automatic detection human body tumble sensing method and device based on UWB feedback - Google Patents

Automatic detection human body tumble sensing method and device based on UWB feedback Download PDF

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Publication number
CN106600902A
CN106600902A CN201710113673.1A CN201710113673A CN106600902A CN 106600902 A CN106600902 A CN 106600902A CN 201710113673 A CN201710113673 A CN 201710113673A CN 106600902 A CN106600902 A CN 106600902A
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China
Prior art keywords
signal
uwb
human
feedback
pulse
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CN201710113673.1A
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Chinese (zh)
Inventor
吴佩萱
张克维
梁烽
陈新
王晗
张麟
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Jiangsu Connecticut Intelligent Technology Co., Ltd.
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Guangdong University of Technology
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Priority to CN201710113673.1A priority Critical patent/CN106600902A/en
Publication of CN106600902A publication Critical patent/CN106600902A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/02Alarms for ensuring the safety of persons
    • G08B21/04Alarms for ensuring the safety of persons responsive to non-activity, e.g. of elderly persons
    • G08B21/0407Alarms for ensuring the safety of persons responsive to non-activity, e.g. of elderly persons based on behaviour analysis
    • G08B21/043Alarms for ensuring the safety of persons responsive to non-activity, e.g. of elderly persons based on behaviour analysis detecting an emergency event, e.g. a fall
    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/02Alarms for ensuring the safety of persons
    • G08B21/04Alarms for ensuring the safety of persons responsive to non-activity, e.g. of elderly persons
    • G08B21/0438Sensor means for detecting
    • G08B21/0446Sensor means for detecting worn on the body to detect changes of posture, e.g. a fall, inclination, acceleration, gait

Abstract

The invention discloses an automatic detection human body tumble sensing method and device based on UWB feedback. A microwave sensor is utilized to transmit and receive microwaves, movement of a human body is detected through utilizing the Doppler effect, in combination with a UWB sensor, chest and abdomen undulation conditions of the human body are detected, and thereby whether the human body tumbles can be determined. The method is advantaged in that precision is improved, and a misjudgment rate is reduced.

Description

The automatic detection falling over of human body method for sensing fed back based on UWB and device
Technical field
The present invention relates to falling over of human body sensor field is detected, more particularly to a kind of automatic detection people fed back based on UWB Body falls down method for sensing and device.
Background technology
With the aging of social population's structure, old man falls down fracture, the overwhelming majority be because slightly, indirect violence, and The reason for tumble is common.With advancing age, osteoporosis is relatively common for old man.But after Falls Among Old People, If without treatment is timely found, consequence is than more serious.
Shown according to U.S.'s survey data, the incidence of annual Falls Among Old People is about 15~40%, and with age And raise.China TCM Academy of Sciences Xiyuan Hospital medical science of recovery therapy head of the department Zhuan Ping points out that Falls Among Old People can be caused serious injury, Position fracture, subdural hemorrhage, soft tissue injury or the head injury such as including hip joint.Because script physical function declines If the old man for moving back cannot timely have found treatment, missing golden hour occurs serious complication consequence, is easy to There is bedsore, respiratory tract infection, urinary system infection contamination, in addition it is dead.
According to the publication of on December 16th, 2016《Life Times》Report, China there are about every year the old man of 40,000,000 over-65s Fall, there are 8 old men dead because falling in every ten thousand people, this is also " number one killer " that 65 years old and above crowd die from a wound.Always The daily monitoring of weak patient is no longer only family problem, it has also become the social concern for affecting China's economic development to solve.
The elderly falls down the method for detection and can be generally divided into three classes:1st, the detection method based on video, using camera The moving situation of record human body, through specific image processing algorithm, judges whether to fall.Fall detection based on video System by camera since it is desired that be arranged on fixed place, therefore the scope that can be monitored is limited.In addition, it is also possible to quilt Human observer causes the leakage of individual privacy.2nd, the method based on sound signal, this method installs more complicated, fund input Than larger, and good precision cannot be obtained, so the method is seldom used in practical application.3rd, the dress based on Wearable Monitoring is put, this system is to be embedded in wearable device or be directly worn on the privileged site of human body by sensor, so as to The monitor in real time to monitoring individual is realized, but the system is insensitive to falling laterally.
Therefore, for above-mentioned technical problem, it is necessary to provide a kind of accurate rate high automatic detection falling over of human body sensing system System, to solve the problems of existing detection technique.
UWB (Ultra Wideband) is a kind of no-load communication techniques, using the non-sinusoidal waveform of nanosecond to picosecond level Burst pulse transmission data.Have person it for radio art revolution be in progress, it is believed that it will become following short distance without The mainstream technology of line communication.Generally speaking, UWB is used to apply in closely high speed data transfer, Abroad in Recent Years in early stage Start with its subnanosecond level Ultra-short pulse to do closely precision indoor positioning, such as LocalSense wireless location systems.
UWB is incomparable with following some traditional mechanicss of communication as a new short-distance wireless communication technology Advantage:1. positioning precision is high, and 2. scope covers wide, and 3. real-time is good, and 4. penetration power is strong, and 5. transmission power is little.
Because UWB is the working method of pulse radio, only pulse radio is just sent when work, this is than other nothings Line load electric wave technology continuity sends load electric wave very big difference, energy consumption is greatlyd save, in the present for advocating green energy resource It is particularly valuable.
It is therefore proposed that a kind of automatic detection falling over of human body method for sensing fed back based on UWB and device are art technologies Personnel's technical issues that need to address.
The content of the invention
A kind of automatic detection falling over of human body method for sensing fed back based on UWB and device are embodiments provided, is led to Cross microwave remote sensor transmitting and receive the active situation that microwave detects human body using Doppler effect, in combination with UWB sensors Detect human body chest and abdomen fluctuating situation to judge whether human body is fallen down, to reach the effect that accuracy lowers False Rate is improved.
A kind of automatic detection falling over of human body method for sensing fed back based on UWB is embodiments provided, including:
S1:Control microwave remote sensor transmitting microwave signal, is got and the microwave signal by the microwave remote sensor Corresponding feedback wave signal, and control UWB sensor emission pulse signals;
S2:After judging that the feedback wave signal is equal with default value, confirm that physical activity is abnormal and obtains by institute The pulse feedback signal corresponding with the pulse signal of UWB sensors transmission is stated, then performs S3;
Or
After judging the feedback wave signal in pre- feedback range of signal, confirm that physical activity is normal and out of service Preset time, then re-execute S1;
S3:Judge that the pulse feedback signal whether in the range of preset normal chest and abdomen rise and fall, if not existing, performs warning Operation, if performing S4;
S4:Cycle-index k=k+1 is made, judges that k, whether more than preset loop number of times, if being more than, performs operation of reporting to the police, If being not more than, S2 is re-executed.
Preferably, it is provided in an embodiment of the present invention it is a kind of based on UWB feed back automatic detection falling over of human body method for sensing also Including:Operation is filtered to the pulse feedback signal by being built in the filter circuit of the UWB sensors.
Preferably, it is described to report to the police operation to send alarm or giving notice note to mobile terminal.
Preferably, the pulse signal is non-sinusoidal waveform narrow pulse signal.
Preferably, the non-sinusoidal waveform narrow pulse signal is nanosecond non-sinusoidal waveform narrow pulse signal or Microsecond grade non-sine Ripple narrow pulse signal.
Preferably, the embodiment of the present invention additionally provides a kind of automatic detection falling over of human body sensing device fed back based on UWB, Including:
Control unit, for controlling microwave remote sensor transmitting microwave signal, is got and institute by the microwave remote sensor The corresponding feedback wave signal of microwave signal is stated, and controls UWB sensor emission pulse signals;
Acquiring unit, for after judging that the feedback wave signal is equal with default value, confirming that physical activity is abnormal And the pulse feedback signal corresponding with the pulse signal sent by the UWB sensors is obtained, then trigger the first judgement list Unit;
Or
After judging the feedback wave signal in pre- feedback range of signal, confirm that physical activity is normal and out of service Preset time, then retriggered described control unit;
First judging unit, for judging the pulse feedback signal whether in preset normal chest and abdomen fluctuating scope It is interior, if not existing, operation of reporting to the police is performed, if triggering the second judging unit;
Whether second judging unit, for making cycle-index k=k+1, judge k more than preset loop number of times, if greatly In, then operation of reporting to the police is performed, if no more than, acquiring unit described in retriggered.
Preferably, it is provided in an embodiment of the present invention it is a kind of based on UWB feed back automatic detection falling over of human body sensing device also Including:
Filter unit, for being carried out to the pulse feedback signal by being built in the filter circuit of the UWB sensors Filtering operation.
Preferably, it is described to report to the police operation to send alarm or giving notice note to mobile terminal.
Preferably, the pulse signal is non-sinusoidal waveform narrow pulse signal.
Preferably, the non-sinusoidal waveform narrow pulse signal is nanosecond non-sinusoidal waveform narrow pulse signal or Microsecond grade non-sine Ripple narrow pulse signal.
As can be seen from the above technical solutions, the embodiment of the present invention has advantages below:
A kind of automatic detection falling over of human body method for sensing fed back based on UWB and device are embodiments provided, this The active situation that microwave detects human body using Doppler effect is launched and received to inventive embodiments by microwave remote sensor, while knot Close UWB person detection sensor body chest and abdomen fluctuating situations to judge whether human body is fallen down, to reach accuracy attenuating False Rate is improved Effect.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is a kind of stream of automatic detection falling over of human body method for sensing fed back based on UWB provided in an embodiment of the present invention Journey schematic diagram;
Fig. 2 is a kind of knot of automatic detection falling over of human body sensing device fed back based on UWB provided in an embodiment of the present invention Structure schematic diagram.
Specific embodiment
A kind of automatic detection falling over of human body method for sensing fed back based on UWB and device are embodiments provided, is led to Cross microwave remote sensor transmitting and receive the active situation that microwave detects human body using Doppler effect, in combination with UWB sensors Detect human body chest and abdomen fluctuating situation to judge whether human body is fallen down, to reach the effect that accuracy lowers False Rate is improved.
To enable goal of the invention, feature, the advantage of the present invention more obvious and understandable, below in conjunction with the present invention Accompanying drawing in embodiment, is clearly and completely described, it is clear that disclosed below to the technical scheme in the embodiment of the present invention Embodiment be only a part of embodiment of the invention, and not all embodiment.Based on the embodiment in the present invention, this area All other embodiment that those of ordinary skill is obtained under the premise of creative work is not made, belongs to protection of the present invention Scope.
Refer to Fig. 1, a kind of automatic detection falling over of human body method for sensing fed back based on UWB provided in an embodiment of the present invention One embodiment, including:
101st, microwave remote sensor transmitting microwave signal is controlled, is got by microwave remote sensor corresponding with microwave signal anti- Feedback ripple signal, and control UWB sensor emission pulse signals;
Control microwave remote sensor transmitting microwave signal, by microwave remote sensor feedback wave corresponding with microwave signal is got Signal, and UWB sensor emission pulse signals are controlled, to realize the accurate judgement to body state.
102nd, after judging that feedback wave signal is equal with default value, confirm that physical activity is abnormal and obtain by UWB biographies The pulse feedback signal corresponding with pulse signal that sensor sends, then perform 103;
Or
After judging feedback wave signal in pre- feedback range of signal, confirm that physical activity is normal and out of service preset Time, then re-execute 101;
Feedback wave signal is judged, feedback wave signal is equal with default value if judging, confirm physical activity not It is normal and obtain the pulse feedback signal corresponding with pulse signal sent by UWB sensors execution step 103 again, if judging instead Feedback ripple signal confirms that physical activity is normal and preset time out of service in pre- feedback range of signal, then re-executes 101。
Wherein, data are judged by presetting two groups of microwave signals:(1) falling over of human body state (motionless or faint activity of lying down) When feedback signal x be equal to a default steady state value (Human feed back's signal be x;Feedback signal x is close to constant when falling down state Value);(2) feedback signal m during human normal activity (i.e. normal stand, bends over, and squats down, activity of lying down)<x<N (human normals X values are always in dynamic change when movable;Lower threshold value in the feedback signal that n and m is produced when being human body normal activity), while in UWB The normal chest and abdomen fluctuating range data of sensor settings.
After judging that body state is normal, can stop detection 30~60 seconds (the step be in order to avoid will bend over and under Crouching or these postures wrong reports that may occur of having a bath of sitting down are falling over of human body).Then proceed to start detection.
103rd, judge that pulse feedback signal whether in the range of preset normal chest and abdomen rise and fall, if not existing, performs the behaviour that reports to the police Make, if performing 104;
When physical activity it is abnormal, then real-time judge system start read UWB sensors on chest and abdomen fluctuating data (i.e. Pulse feedback signal) compare to judge whether chest and abdomen rise and fall normally, if arteries and veins with default normal chest and abdomen fluctuating range data Feedback signal is rushed not in the range of preset normal chest and abdomen rise and fall, then operation of reporting to the police is performed, if in preset normal chest and abdomen fluctuating scope It is interior, execution step 104.
104th, cycle-index k=k+1 is made, judges that k, whether more than preset loop number of times, if being more than, performs operation of reporting to the police, If being not more than, 102 are re-executed.
Detection cycle-index k can set, if performing warning operation if the cycle-index, if without departing from continuing to return Return microwave signal detection.
A kind of another reality of automatic detection falling over of human body method for sensing fed back based on UWB provided in an embodiment of the present invention Example is applied, including:
201st, microwave remote sensor transmitting microwave signal is controlled, is got by microwave remote sensor corresponding with microwave signal anti- Feedback ripple signal, and control UWB sensor emission pulse signals;
Control microwave remote sensor transmitting microwave signal, by microwave remote sensor feedback wave corresponding with microwave signal is got Signal, and UWB sensor emission pulse signals are controlled, to realize the accurate judgement to body state.
UWB sensors by launching and receive the non-sinusoidal waveform burst pulse of nanosecond to Microsecond grade come detect human body thorax and Belly state, when falling over of human body, people's cognition is made than larger reaction, and pulse can rise, and breathing can become rapid, together When chest and belly fluctuating can become quite big, UWB sensors can detect that chest and abdomen rise and fall thorax and abdomen when becoming big Portion's minute movement.Based on above-mentioned principle, UWB sensors are detected to regular fluctuating of chest and abdomen, and its pulse feedback signal can Be converted to equivalent voltage signal.Microwave remote sensor detects the active state of human body, the ripple of sensor emission using Doppler effect Long or frequency produces the detection that state was realized to human normal state or fallen down in change because of the relative motion of human body and sensor.When When human body is fixed with microwave remote sensor distance, its echo wavelength or frequency immobilize.When human body it is micro- to microwave remote sensor direction When little mobile, wavelength shortens, and frequency is uprised (blue shift);In the same manner, when human body minute movement reverse to microwave remote sensor, wavelength becomes It is long, frequencies go lower (red shift).Based on above-mentioned principle, the sensor is detected to the wavelength or frequency of human body echo, its feedback Ripple signal can be exchanged into equivalent voltage signal.Can accurately judge with reference to chest and abdomen undulating state and human body active state both information Whether human body is fallen down, and reduces False Rate.
202nd, after judging that feedback wave signal is equal with default value, confirm that physical activity is abnormal and obtain by UWB biographies The pulse feedback signal corresponding with pulse signal that sensor sends, then perform 203;
Or
After judging feedback wave signal in pre- feedback range of signal, confirm that physical activity is normal and out of service preset Time, then re-execute 201;
Feedback wave signal is judged, feedback wave signal is equal with default value if judging, confirm physical activity not It is normal and obtain the pulse feedback signal corresponding with pulse signal sent by UWB sensors execution step 203 again, if judging instead Feedback ripple signal confirms that physical activity is normal and preset time out of service in pre- feedback range of signal, then re-executes 201。
Specifically, after the pulse feedback signal for getting the transmission of UWB sensors, can be by being built in UWB sensors Filter circuit is filtered operation to the pulse feedback signal, can filter out the irregular minute movement at other positions of body The impact of generation, lowers False Rate.
Wherein, data are judged by presetting two groups of microwave signals:(1) falling over of human body state (motionless or faint activity of lying down) When feedback signal x~a (Human feed back's signal be x;Feedback signal x is close to steady state value when falling down state);(2) human normal is lived Feedback signal m when dynamic (i.e. normal stand, bends over, and squats down, activity of lying down)<x<N (moving always during human normal activity by x values State changes;Lower threshold value in the feedback signal that n and m is produced when being human body normal activity), while in the normal chest of UWB sensor settings Abdomen fluctuating range data.
After judging that body state is normal, can stop detection 30~60 seconds (the step be in order to avoid will bend over and under Crouching or these postures wrong reports that may occur of having a bath of sitting down are falling over of human body).Then proceed to start detection.
203rd, judge that pulse feedback signal whether in the range of preset normal chest and abdomen rise and fall, if not existing, performs the behaviour that reports to the police Make, if performing 204;
When physical activity it is abnormal, then real-time judge system start read UWB sensors on chest and abdomen fluctuating data (i.e. Pulse feedback signal) compare to judge whether chest and abdomen rise and fall normally, if arteries and veins with default normal chest and abdomen fluctuating range data Feedback signal is rushed not in the range of preset normal chest and abdomen rise and fall, then operation of reporting to the police is performed, if in preset normal chest and abdomen fluctuating scope It is interior, execution step 204.
204th, make cycle-index k=k+1, judge k whether more than preset loop number of times, if being more than, send alarm or to Mobile terminal is given notice note, if being not more than, re-executes 202.
Detection cycle-index k can set, and send alarm if beyond cycle-index or give notice to mobile terminal Note, if without departing from continuation returns microwave signal detection.
Refer to Fig. 2, a kind of automatic detection falling over of human body sensing device fed back based on UWB provided in an embodiment of the present invention One embodiment, including:
Control unit 301, for controlling microwave remote sensor transmitting microwave signal, is got and microwave by microwave remote sensor The corresponding feedback wave signal of signal, and control UWB sensor emission pulse signals;
Acquiring unit 302, for after judging that feedback wave signal is equal with default value, confirming that physical activity is abnormal simultaneously The pulse feedback signal corresponding with pulse signal that acquisition is sent by UWB sensors, then trigger the first judging unit 303;
Or
After judging feedback wave signal in pre- feedback range of signal, confirm that physical activity is normal and out of service preset Time, then retriggered control unit 301;
First judging unit 303, for judging pulse feedback signal whether in the range of preset normal chest and abdomen rise and fall, if not Operation of reporting to the police then is being performed, if triggering the second judging unit 304;
Whether second judging unit 304, for making cycle-index k=k+1, judge k more than preset loop number of times, if greatly In, then operation of reporting to the police is performed, if no more than, retriggered acquiring unit 302.
Preferably, it is provided in an embodiment of the present invention it is a kind of based on UWB feed back automatic detection falling over of human body sensing device also Including:
Filter unit 305, for behaviour to be filtered to pulse feedback signal by being built in the filter circuit of UWB sensors Make, the irregular minute movement at other positions of body can be filtered out, lower False Rate.
Further, operation is reported to the police to send alarm or giving notice note to mobile terminal.
Further, pulse signal is non-sinusoidal waveform narrow pulse signal.
Further, non-sinusoidal waveform narrow pulse signal is nanosecond non-sinusoidal waveform narrow pulse signal or Microsecond grade non-sinusoidal waveform Narrow pulse signal.
In the present embodiment, UWB sensors can launch the non-sinusoidal waveform burst pulse of nanosecond to Microsecond grade and receive reflection The pulse returned, and by a kind of real-time judge system (automatic detection people fed back based on UWB as provided in an embodiment of the present invention Body falls down sensing device) control.
Microwave remote sensor can send and receive microwave, and be controlled by real-time judge system, and microwave remote sensor can send With receive all types of ripples, including sound wave and electromagnetic wave.
Real-time judge system can in real time calculate the microwave signal that microwave remote sensor received and calculate UWB sensors and be received Reflected impulse signal, accurately judge the state of human body, and can be with the active state of real-time judge human body, if active state goes out Now it is mutated, further according to the chest and abdomen fluctuating data measured by UWB sensors the situation of falling down is judged.
Microwave remote sensor, UWB sensors and real-time judge system are packaged together and such as washed installed in the activity space closed Some position that between hand or bathroom etc. is relatively easy in the space fallen down carries out monitor in real time to human body.
When using, first microwave remote sensor, UWB sensors and real-time judge system are installed to the envelope such as toilet or bathroom The activity space for closing, real-time judge system starts to control microwave remote sensor to send microwave, and receives feedback wave signal, and presetting Data compare to judge whether physical activity normal.When physical activity it is abnormal, then real-time judge system start read Take the chest and abdomen fluctuating data (as aforementioned pulse feedback signal) and default normal chest and abdomen fluctuating range data on UWB sensors Compare to judge whether chest and abdomen rise and fall normally.If chest and abdomen fluctuating is abnormal, system sends immediately alarm or note Notify;If normal, continue to return microwave signal detection.Detection cycle-index k can set, if beyond cycle-index System sends alarm or SMS notification.
Those skilled in the art can be understood that, for convenience and simplicity of description, the system of foregoing description, The specific work process of device and unit, may be referred to the corresponding process in preceding method embodiment, will not be described here.
In several embodiments provided herein, it should be understood that disclosed system, apparatus and method can be with Realize by another way.For example, device embodiment described above is only schematic, for example, the unit Divide, only a kind of division of logic function can have other dividing mode, such as multiple units or component when actually realizing Can with reference to or be desirably integrated into another system, or some features can be ignored, or not perform.It is another, it is shown or The coupling each other for discussing or direct-coupling or communication connection can be the indirect couplings by some interfaces, device or unit Close or communicate to connect, can be electrical, mechanical or other forms.
The unit as separating component explanation can be or may not be it is physically separate, it is aobvious as unit The part for showing can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple On NE.Some or all of unit therein can according to the actual needs be selected to realize the mesh of this embodiment scheme 's.
In addition, each functional unit in each embodiment of the invention can be integrated in a processing unit, it is also possible to It is that unit is individually physically present, it is also possible to which two or more units are integrated in a unit.Above-mentioned integrated list Unit both can be realized in the form of hardware, it would however also be possible to employ the form of SFU software functional unit is realized.
If the integrated unit is realized using in the form of SFU software functional unit and as independent production marketing or used When, during a computer read/write memory medium can be stored in.Based on such understanding, technical scheme is substantially The part for contributing to prior art in other words or all or part of the technical scheme can be in the form of software products Embody, the computer software product is stored in a storage medium, including some instructions are used so that a computer Equipment (can be personal computer, server, or network equipment etc.) performs the complete of each embodiment methods described of the invention Portion or part steps.And aforesaid storage medium includes:USB flash disk, portable hard drive, read-only storage (ROM, Read-Only Memory), random access memory (RAM, RandomAccess Memory), magnetic disc or CD etc. are various can store journey The medium of sequence code.
The above, above example only to illustrate technical scheme, rather than a limitation;Although with reference to front State embodiment to be described in detail the present invention, it will be understood by those within the art that:It still can be to front State the technical scheme described in each embodiment to modify, or equivalent is carried out to which part technical characteristic;And these Modification is replaced, and does not make the spirit and scope of the essence disengaging various embodiments of the present invention technical scheme of appropriate technical solution.

Claims (10)

1. it is a kind of based on UWB feed back automatic detection falling over of human body method for sensing, it is characterised in that include:
S1:Control microwave remote sensor transmitting microwave signal, is got corresponding with the microwave signal by the microwave remote sensor Feedback wave signal, and control UWB sensor emission pulse signals;
S2:After judging that the feedback wave signal is equal with default value, confirm that physical activity is abnormal and obtains by the UWB The pulse feedback signal corresponding with the pulse signal that sensor sends, then perform S3;
Or
After judging the feedback wave signal in pre- feedback range of signal, confirm that physical activity is normal and out of service preset Time, then re-execute S1;
S3:Judge that the pulse feedback signal whether in the range of preset normal chest and abdomen rise and fall, if not existing, performs the behaviour that reports to the police Make, if performing S4;
S4:Cycle-index k=k+1 is made, judges that k, whether more than preset loop number of times, if being more than, performs operation of reporting to the police, if not It is more than, then re-executes S2.
2. the automatic detection falling over of human body method for sensing fed back based on UWB according to claim 1, it is characterised in that also Including:Operation is filtered to the pulse feedback signal by being built in the filter circuit of the UWB sensors.
3. it is according to claim 1 based on UWB feed back automatic detection falling over of human body method for sensing, it is characterised in that institute Warning operation is stated to send alarm or giving notice note to mobile terminal.
4. it is according to claim 3 based on UWB feed back automatic detection falling over of human body method for sensing, it is characterised in that institute Pulse signal is stated for non-sinusoidal waveform narrow pulse signal.
5. it is according to claim 4 based on UWB feed back automatic detection falling over of human body method for sensing, it is characterised in that institute Non-sinusoidal waveform narrow pulse signal is stated for nanosecond non-sinusoidal waveform narrow pulse signal or Microsecond grade non-sinusoidal waveform narrow pulse signal.
6. it is a kind of based on UWB feed back automatic detection falling over of human body sensing device, it is characterised in that include:
Control unit, for controlling microwave remote sensor transmitting microwave signal, is got micro- with described by the microwave remote sensor The corresponding feedback wave signal of ripple signal, and control UWB sensor emission pulse signals;
Acquiring unit, for after judging that the feedback wave signal is equal with default value, confirming that physical activity is abnormal and obtains The pulse feedback signal corresponding with the pulse signal sent by the UWB sensors is taken, then triggers the first judging unit;
Or
After judging the feedback wave signal in pre- feedback range of signal, confirm that physical activity is normal and out of service preset Time, then retriggered described control unit;
First judging unit, for judging the pulse feedback signal whether in the range of preset normal chest and abdomen rise and fall, if Do not exist, then operation of reporting to the police is performed, if triggering the second judging unit;
Whether second judging unit, for making cycle-index k=k+1, judge k more than preset loop number of times, if being more than, Operation of reporting to the police is performed, if being not more than, acquiring unit described in retriggered.
7. the automatic detection falling over of human body sensing device fed back based on UWB according to claim 6, it is characterised in that also Including:
Filter unit, for being filtered to the pulse feedback signal by being built in the filter circuit of the UWB sensors Operation.
8. it is according to claim 6 based on UWB feed back automatic detection falling over of human body sensing device, it is characterised in that institute Warning operation is stated to send alarm or giving notice note to mobile terminal.
9. it is according to claim 8 based on UWB feed back automatic detection falling over of human body sensing device, it is characterised in that institute Pulse signal is stated for non-sinusoidal waveform narrow pulse signal.
10. it is according to claim 9 based on UWB feed back automatic detection falling over of human body sensing device, it is characterised in that institute Non-sinusoidal waveform narrow pulse signal is stated for nanosecond non-sinusoidal waveform narrow pulse signal or Microsecond grade non-sinusoidal waveform narrow pulse signal.
CN201710113673.1A 2017-02-28 2017-02-28 Automatic detection human body tumble sensing method and device based on UWB feedback Pending CN106600902A (en)

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CN109345771A (en) * 2018-10-22 2019-02-15 杨松 A kind of method and system that detection human body is fallen

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