CN206741432U - A kind of system for human action extraction - Google Patents
A kind of system for human action extraction Download PDFInfo
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- CN206741432U CN206741432U CN201720610651.1U CN201720610651U CN206741432U CN 206741432 U CN206741432 U CN 206741432U CN 201720610651 U CN201720610651 U CN 201720610651U CN 206741432 U CN206741432 U CN 206741432U
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Abstract
Field of computer technology is the utility model is related to, discloses a kind of system for human action extraction.This system provides a kind of human action extraction equipment that can be directly worn on human body and send out/receive function with electromagnetic wave signal, on the one hand it can send carrier (boc) modulated signals using Worn type beacon, on the other hand the carrier (boc) modulated signals can be received to sense using each antenna receiving unit in conformal array antenna, obtain baseband receiving signals amplitude information and baseband receiving signals phase information in corresponding reception signal, and magnetic distribution equation matrix is settled accounts using these information, obtain relative coordinate position of the Worn type beacon relative to reception antenna, and then complete the human action extraction purpose of human body corresponding with Worn type beacon.
Description
Technical field
Field of computer technology is the utility model is related to, in particular it relates to a kind of system for human action extraction.
Background technology
With the continuous development of sensor technology, the communication technology and data analysis technique, ambient intelligence should in many
With achieving success in scene, and human action identification is exactly the key issue for realizing ambient intelligence.Human action identification is related to
To the automatic detection from the information collected by different modalities sensor and analysis human action, and accurately to realize that human body moves
Identify, high-precision human action extraction is primary premise.
The mode of human action extraction at present mainly has based on optical extracting mode and carrying based on acceleration transducer
Mode is taken, the former mainly carries out image recognition and tracking using visible ray or infrared ray to the beacon at human synovial position, so as to
Realize that human action extracts, but its exist beacon be easily blocked and the problem of generation action gaps and omissions, while due also at image
The limitation of reason technology, the problem of extraction rate is relatively slow and cost is higher be present；And the latter is then by positioned at human synovial portion
The acceleration transducer of position, gathers the acceleration information of correspondence position, each pass then is calculated according to the acceleration information
The relative position of section is low (because can only obtain phase there are still extraction accuracy although can solve the problems, such as to act gaps and omissions
For the positional information of joint position before action) and cost it is higher the problem of.
Utility model content
For existing two kinds of human actions extraction mode present in action gaps and omissions, extraction rate is slow, precision is low and into
The problem of this is high, the utility model provide a kind of system for human action extraction.
The technical solution adopted in the utility model, there is provided a kind of system for human action extraction, including at signal
Module, Worn type beacon, Worn type conformal array antenna, low noise multichannel array and multichannel A/D acquisition modules are managed, wherein,
The Worn type conformal array antenna includes N number of antenna receiving unit, and the low noise multichannel array includes N roads low noise
Demodulation process passage, N are the natural number not less than 3；The output end of the signal processing module communicates to connect the Worn type letter
Target input, each antenna receiving unit communicate to connect low noise demodulation process described in each road and led to correspondingly respectively
The input in road, the output end of low noise demodulation process passage communicates to connect the multichannel correspondingly respectively described in each road
Each A/D collection inputs of A/D acquisition modules, the A/D collection output end communication connections institute of the multichannel A/D acquisition modules
State the input of signal processing module.
Optimization, the signal processing module include central processing circuit, sequential processing circuit, output interface circuit and
Data acquisition input interface circuit；The central processing circuit communicates to connect the sequential processing circuit respectively, the output connects
Mouth circuit and the data acquisition input interface circuit, the sequential processing circuit also communicate to connect the output interface circuit；
The central processing circuit communicates to connect the input of the Worn type beacon by the output interface circuit, passes through the number
The A/D that the multichannel A/D acquisition modules are communicated to connect according to collection input interface circuit gathers output end.Further optimize,
The signal processing module also includes application output interface circuit and/or the storage of the communication connection central processing circuit
Device.
Optimization, the Worn type beacon includes the first input interface circuit, first control circuit, the first clock and produced
Circuit, first carrier combiner circuit, modulation circuit and transmitting antenna；The first control circuit communicates to connect described first respectively
Input interface circuit, first clock generation circuit and the modulation circuit, first clock generation circuit also communication link
The first carrier combiner circuit and the modulation circuit are connect, the first carrier combiner circuit also communicates to connect the modulation electricity
Road, the modulation circuit also communicate to connect the transmitting antenna；The first control circuit passes through first input interface electricity
Road communicates to connect the output end of the signal processing module.Further optimize, the Worn type beacon also includes charging sense
Answer coil and second source process circuit；The charging induction coil electrically connects the input of the second source process circuit,
The output end of the second source process circuit electrically connects the power end of the first control circuit.
Optimization, the low noise multichannel array also includes the second input interface circuit, second control circuit, second
Clock generation circuit and the second carrier wave combiner circuit, low noise demodulation process passage includes communication link successively respectively described in each road
Low noise amplification link, demodulator circuit, baseband filtering circuit and the A/D interface circuits connect；The second control circuit leads to respectively
Letter is connected in second input interface circuit, the second clock generation circuit and low noise demodulation process passage described in Ge Lu
The demodulator circuit, the second clock generation circuit also communicates to connect the second carrier wave combiner circuit, and described second carries
Ripple combiner circuit also communicates to connect the demodulator circuit in low noise demodulation process passage described in each road；The second control electricity
Road communicates to connect the output end of the signal processing module by second input interface circuit.
Optimization, the multichannel A/D acquisition modules include multi-channel a/d converter, filtering process circuit and data
Gather output interface circuit；The multi-channel a/d converter communicates to connect the filtering process circuit respectively and the data are adopted
Collect output interface circuit；The multi-channel a/d converter is communicated to connect low described in each road respectively by the filtering process circuit
The output end of noise demodulation treatment channel, the signal processing module is communicated to connect by the data acquisition output interface circuit
Input.
To sum up, using the system provided by the utility model for human action extraction, have the advantages that：
(1) this system provides a kind of human action extraction that can be directly worn on human body and send out/receive function with electromagnetic wave signal
Equipment, on the one hand it can send carrier (boc) modulated signals using Worn type beacon, on the other hand can utilize each in conformal array antenna
Individual antenna receiving unit receives the carrier (boc) modulated signals to sense, and obtains baseband receiving signals amplitude information in corresponding reception signal
With baseband receiving signals phase information, and magnetic distribution equation matrix is settled accounts using these information, obtain Worn type
Beacon and then completes the human action of corresponding with Worn type beacon human body relative to the relative coordinate position of reception antenna
Extract purpose；(2) positioned by being then based on Electromagnetic Wave Propagation, relative to based on optical extracting mode, using electricity
The problem of stronger diffraction characteristic blocks to avoid the occurrence of action or acts gaps and omissions possessed by magnetic wave, i.e., human action has extracted
It is whole, do not fall frame problem；(3) it is pending relative to based on optical extracting mode due to without application image treatment technology
Data volume significantly reduces, and the speed of human action extraction is exceedingly fast；(4) because conformal array antenna is integrally fixed at the particular portion of human body
On position, relative to the extracting mode based on acceleration transducer, absolute position of the beacon transmitter relative to human body can be obtained
Information, the extraction accuracy of human action can be greatly promoted；(5) system for human action extraction, also has and is
Unite it is simple in construction, do not limited by place, the advantage such as strong antijamming capability and extraction cost are low, be easy to practical application and popularization.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the system structure diagram provided by the utility model for human action extraction.
Fig. 2 is the electrical block diagram of signal processing module in systems provided by the utility model.
Fig. 3 is the electrical block diagram of the beacon of Worn type in systems provided by the utility model.
Fig. 4 is the part circuit structure schematic diagram of the multichannel array of low noise in systems provided by the utility model.
Fig. 5 is the electrical block diagram of the A/D acquisition modules of multichannel in systems provided by the utility model.
Embodiment
Hereinafter with reference to accompanying drawing, described in detail and provided by the utility model carried for human action by way of example
The system taken.Herein it should be noted that being used to help understand the utility model for the explanation of these way of example, but simultaneously
Do not form to restriction of the present utility model.
The terms "and/or", only a kind of incidence relation for describing affiliated partner, expression may have three kinds of passes
System, for example, A and/or B, can be represented：Individualism A, individualism B, while tri- kinds of situations of A and B, the terms be present
"/and " it is another affiliated partner relation of description, expression may have two kinds of relations, for example, A/ and B, can be represented：Individually deposit
In A, two kinds of situations of individualism A and B, in addition, character "/" herein, it is that a kind of "or" is closed to typically represent forward-backward correlation object
System.
Embodiment one
Fig. 1 shows the system structure diagram provided by the utility model for human action extraction, and Fig. 2 shows this
The electrical block diagram for the signal processing module in systems that utility model provides, Fig. 3 shows provided by the utility model
The electrical block diagram of Worn type beacon in systems, Fig. 4 show that low noise in systems provided by the utility model is more
The part circuit structure schematic diagram of channel array, Fig. 5 show the A/D of multichannel in systems collections mould provided by the utility model
The electrical block diagram of block.
The present embodiment provide it is described for human action extraction system, including signal processing module, Worn type beacon,
Worn type conformal array antenna, low noise multichannel array and multichannel A/D acquisition modules, wherein, the Worn type conformal array day
Line includes N number of antenna receiving unit, and the low noise multichannel array includes N roads low noise demodulation process passage, and N is not
Natural number less than 3；The output end of the signal processing module communicates to connect the input of the Worn type beacon, each described
Antenna receiving unit communicates to connect the input of low noise demodulation process passage described in each road correspondingly respectively, described in each road
The output end of low noise demodulation process passage communicates to connect each A/ of the multichannel A/D acquisition modules correspondingly respectively
D gathers input, and the A/D collection output ends of the multichannel A/D acquisition modules communicate to connect the defeated of the signal processing module
Enter end.
As shown in figure 1, in the structure of the system, on the one hand the signal processing module is used for by predefined logical
Agreement (such as IIC communications protocol) is interrogated to control the Worn type beacon emissions that there is (being answered according to specific for certain time gap
With time slot is between 50~200us), special carrier frequency and specific analogue modulation system (such as linear frequency
Modulation system, non-linear frequency modulation mode or phase modulation method etc.) modulated signal electromagnetic wave, on the other hand it is used for according to institute
There is antenna receiving unit to establish magnetic distribution equation matrix relative to the relative coordinate of the Worn type conformal array antenna, then
The baseband receiving signals amplitude information and baseband receiving signals phase information for substituting into each antenna receiving unit are resolved, finally
Relative coordinate of the Worn type beacon relative to the Worn type conformal array antenna is obtained, is completed and the Worn type beacon phase
The human action extraction purpose of corresponding human body.In addition, the signal processing module can be, but not limited to pass through wire cable
Data interaction is carried out with the Worn type beacon.
The Worn type beacon is intended to be worn in the action position of human body, so as to the action position binding positions, i.e., it is logical
The coordinate position of Worn type beacon is crossed to reflect the coordinate position at the action position indirectly, and then completes the action of the action part
Extraction, such as wearable wrist or ankle position in human body.As shown in figure 1, the number of the Worn type beacon can be M
Individual, M is the natural number no more than 30, is come it is possible thereby to enable the signal processing module to treat, it is ensured that can be to more human bodies
Position carries out dynamic action acquisition.Further, it is contemplated that interference of the modulated signal electromagnetic wave to external electromagnetic environment is reduced, it is described
Effective propagation distance of Worn type beacon is can be controlled within 1 meter, specifically, can make institute according to wearing position and application scenarios
The transmission power of modulated signal electromagnetic wave is stated between -30~0dBm.Simultaneously for the carrier wave of the modulated signal electromagnetic wave
Frequency, it can be, but not limited to use RFID (Radio Frequency Identification, radio frequency identification) frequency range, with
Just electromagenetic wave radiation energy is made to meet national electromagnetic compatibility standard GB/T6113.1.
The Worn type conformal array antenna be used for be worn on human body and with certain length non-action position or action
The less other human action positions (relative to the Worn type beacon) of amplitude, to be provided for Worn type beacon with reference to seat
Mark, it can be, but not limited to as Backpack type conformal array antenna or worn on the wrist conformal array antenna, and the former is arranged in human body for wearing
Back, the latter are arranged in human arm portion for wearing.In the Worn type conformal array antenna, each antenna receiving unit is used
The modulated signal electromagnetic wave by the Worn type beacon emissions is received in wireless induction, and will reception signal caused by sensing
(its frequency received and duration are consistent with the modulated signal launched) is transmitted to corresponding low noise demodulation process passage.Enter
One-step optimization, connect to alleviate follow-up A/D collections and the pressure resolved to magnetic distribution equation matrix, the antenna
The number for receiving unit is preferably 3~10；And/or the antenna receiving unit preferably uses lamination sheet type antenna, and make to own
Antenna receiving unit according to equidistant arranged.
The reception signal that the low noise demodulation process passage is used for acquired in respective antenna receiving unit carries out low noise
Sound demodulation process, baseband receiving signals corresponding to acquisition, and the baseband receiving signals are delivered into the multichannel A/D and gather mould
Block.The multichannel A/D acquisition modules are used to carry out modulus to the baseband receiving signals of each antenna receiving unit respectively
Conversion, obtain respective antenna receiving unit baseband receiving signals amplitude information and baseband receiving signals phase information, and by this
A little information transmissions, to carry out the instant resolving of magnetic distribution equation matrix, are completed human body and moved to the signal processing module
The instant extraction made.
The method of work of the system of human action extraction is previously used for, can be, but not limited to comprise the following steps.
S101. signal processing module generates the first electromagnetic radiation instruction message, then by first electromagnetic radiation
Instruction message is sent to Worn type beacon, the first electromagnetic radiation instruction message include the first tranmitting frequency configured information and
First analogue modulation system configured information.
In the step S101, the first tranmitting frequency configured information is used for the carrier frequency for indicating electromagnetic wave to be launched
Rate, its any one or several frequency for can be, but not limited to use in RFID frequency ranges (combination of 2~20 frequencies can be used,
I.e. instruction interval transmitting one group according to certain time order and with different carrier waves multiple modulated signal electromagnetic waves), such as
Any frequency in 13.56MHz, 27.12MHz, 433MHz or 860~960MHz.The first analogue modulation system instruction letter
The analogue modulation system for indicating electromagnetic wave to be launched is ceased, it can be, but not limited to for non-linear frequency modulation mode, linearly
Frequency modulated mode, amplitude modulation(PAM) mode or phase modulation method etc..In addition, in the first electromagnetic radiation instruction message
The first transmitting duration configured information can also be included, for indicating the launch time gap of electromagnetic wave to be launched, such as 80us.
S102. the Worn type beacon is after the first electromagnetic radiation instruction message is received, first according to described the
One tranmitting frequency configured information generates the carrier signal of respective frequencies, then according to the first analogue modulation system configured information
By on local modulates baseband signals to the carrier signal, modulated signal, modulated signal described in last wireless transmission are obtained.
In the step S102, the launch time gap of the modulated signal can be system default value or by described
Signal processing module is specified according to actual conditions, such as when between 50~200us, the tune can be launched in 1S
Signal processed more than 100 times, consider each signal transacting delay about 10us, complete the duration of extraction one frame human action extraction about
For 0.021S, certain Redundancy Design is considered on this basis, and the human action extraction that maximum can obtain 49 frames/second refreshes frequency
Rate, meet practical application request.
S103. each antenna receiving unit being in Worn type conformal array antenna is believed in wireless receiving to the modulation
After reception signal corresponding to number, processing is demodulated to the reception signal by corresponding low noise demodulation process passage, obtained
The baseband receiving signals of each antenna receiving unit are taken, and the baseband receiving signals are sent to multichannel A/D acquisition modules.
S104. the multichannel A/D acquisition modules enter to the baseband receiving signals of each antenna receiving unit respectively
Row analog-to-digital conversion, obtain the baseband receiving signals amplitude information and baseband receiving signals phase information of respective antenna receiving unit.
S105. signal processing module according to all antenna receiving units relative to the relative of the Worn type conformal array antenna
Coordinate establishes magnetic distribution equation matrix, then substitutes into the baseband receiving signals amplitude information and base of each antenna receiving unit
Band phase of received signal information is resolved, and finally obtains the Worn type beacon relative to the Worn type conformal array antenna
Relative coordinate, complete the instant extraction of human action.
In the step S105, the magnetic distribution equation matrix is relative to same by each antenna receiving unit
The electromagnetic wave equation of Worn type beacon and the equation matrix formed.Optimization, in order to improve resolving accuracy, in institute
State the baseband receiving signals amplitude information for substituting into each antenna receiving unit and baseband receiving signals phase information resolved
In step, comprise the following steps：Electromagnetic field origin equation is solved according to lowest mean square root theory of error iteration is counter, optimal origin is obtained and sits
Mark, the optimal origin is relative coordinate of the Worn type beacon relative to the Worn type conformal array antenna.Institute
State the inverse function equation that electromagnetic field origin equation is aforementioned electromagnetic field distribution equation matrix.Further optimize, if with it is described most
Lowest mean square root error corresponding to excellent origin is higher than error tolerance threshold, then regenerates the instruction of the second electromagnetic radiation and disappear
Breath, is then sent to the Worn type beacon by the second electromagnetic radiation instruction message, finally re-executes step S102
~S105；The second electromagnetic radiation instruction message includes the second tranmitting frequency configured information and the second analogue modulation system refers to
Show information, wherein, the tranmitting frequency indicated by the second tranmitting frequency configured information is believed with first tranmitting frequency instruction
Manner of breathing is different, and/or the analogue modulation system indicated by the second analogue modulation system configured information is adjusted with the described second simulation
Mode configured information processed is different.The error tolerance threshold can be that default value can also be the preset value manually set, such as
2mm.By changing measurement pattern, the interference of external electromagnetic environment can be avoided, it is ensured that each action can extract.Extracting
After the action for completing a Worn type beacon, you can carry out action extraction to next Worn type beacon.
Optimization, the signal processing module include central processing circuit, sequential processing circuit, output interface circuit and
Data acquisition input interface circuit；The central processing circuit communicates to connect the sequential processing circuit respectively, the output connects
Mouth circuit and the data acquisition input interface circuit, the sequential processing circuit also communicate to connect the output interface circuit；
The central processing circuit communicates to connect the input of the Worn type beacon by the output interface circuit, passes through the number
The A/D that the multichannel A/D acquisition modules are communicated to connect according to collection input interface circuit gathers output end.
As shown in Fig. 2 in the signal processing module, the central processing circuit is used to realize the signal transacting mould
The Core Feature of block.The sequential processing circuit be used for the first tranmitting frequency configured information instruction it is multiple (typically can 2~
20) carrier frequency when, preset the transmission time sequencing of the modulated-analog signal based on these carrier frequencies, and will arrange
As a result Worn type beacon is sent to by the output interface circuit, so as to the Worn type beacon according to the time sequencing successively
Send multiple modulated signal electromagnetic waves so that finally when resolving, the electromagnetic field side that can be carried out continuously under multiple different situations
Journey matrix resolves, and obtains most accurate action extraction result.Further optimize, the signal processing module also includes communication
Connect the central processing circuit applies output interface circuit and/or memory.As shown in Fig. 2 described apply output interface
Circuit is used for external different electronic equipment, such as computer etc., further to carry out the output processing of action extraction result
Or displaying action extraction result.The memory is used to store the information such as algorithm routine, and it can be, but not limited to use ROM
(Read-Only Memory, read-only storage) memory.Additionally it contained having electricity is handled for the first power supply of stable power-supplying
Road.
Optimization, the Worn type beacon includes the first input interface circuit, first control circuit, the first clock and produced
Circuit, first carrier combiner circuit, modulation circuit and transmitting antenna；The first control circuit communicates to connect described first respectively
Input interface circuit, first clock generation circuit and the modulation circuit, first clock generation circuit also communication link
The first carrier combiner circuit and the modulation circuit are connect, the first carrier combiner circuit also communicates to connect the modulation electricity
Road, the modulation circuit also communicate to connect the transmitting antenna；The first control circuit passes through first input interface electricity
Road communicates to connect the output end of the signal processing module.
As shown in figure 3, on the one hand the first control circuit is used for according to the tranmitting frequency configured information, described in control
Frequency multiplication Fold signal corresponding to the generation of first clock generation circuit, to synthesize electricity to the carrier wave using the frequency multiplication Fold signal
Fundamental frequency signal in road carries out frequency multiplication synthesis, obtains the carrier signal of target frequency；On the other hand it is used to be adjusted according to the simulation
Mode configured information processed, control analogue modulation system corresponding to the modulation circuit use.First clock generation circuit is also
For producing local baseband signal.The modulation circuit is used to, by local modulates baseband signals to the carrier signal, obtain
Modulated signal.The transmitting antenna is used for the electromagnetic wave of modulated signal described in wireless transmission, and it can be, but not limited to using miniature
Antenna.Further optimize, the Worn type beacon also includes charging induction coil and second source process circuit；It is described to fill
Electric induction coil electrically connects the input of the second source process circuit, and the output end of the second source process circuit is electrically connected
Connect the power end of the first control circuit.As shown in figure 3, by configuring the charging induction coil, can also realize wireless
Charging, the electric energy of Worn type consumed by beacons is supplemented immediately.
Optimization, the low noise multichannel array also includes the second input interface circuit, second control circuit, second
Clock generation circuit and the second carrier wave combiner circuit, low noise demodulation process passage includes communication link successively respectively described in each road
Low noise amplification link, demodulator circuit, baseband filtering circuit and the A/D interface circuits connect；The second control circuit leads to respectively
Letter is connected in second input interface circuit, the second clock generation circuit and low noise demodulation process passage described in Ge Lu
The demodulator circuit, the second clock generation circuit also communicates to connect the second carrier wave combiner circuit, and described second carries
Ripple combiner circuit also communicates to connect the demodulator circuit in low noise demodulation process passage described in each road；The second control electricity
Road communicates to connect the output end of the signal processing module by second input interface circuit.
As shown in figure 4, the low noise multichannel array be also required to obtain electromagnetic radiation instruction message, so as to carry out with
The corresponding demodulation mechanism of the Worn type beacon.Wherein, on the one hand the second control circuit is used to be referred to according to tranmitting frequency
Show information, frequency multiplication Fold signal corresponding to the second clock generation circuit generation is controlled, to utilize the frequency multiplication Fold signal
Frequency multiplication synthesis is carried out to the fundamental frequency signal in the carrier wave combiner circuit, obtains the carrier signal of target frequency；On the other hand use
According to analogue modulation system configured information, each demodulator circuit is controlled to carry out matching modulation, and then obtain accurate base band and connect
The collection of letters number.The low noise amplification link is used to carry out low noise amplification to reception signal.The baseband filtering circuit be used for pair
Baseband receiving signals are filtered, and reject out-of-band harmonics.The A/D interface circuits are used to dock the multichannel A/D collections mould
The corresponding A of block/D collection inputs.
Optimization, the multichannel A/D acquisition modules include multi-channel a/d converter, filtering process circuit and data
Gather output interface circuit；The multi-channel a/d converter communicates to connect the filtering process circuit respectively and the data are adopted
Collect output interface circuit；The multi-channel a/d converter is communicated to connect low described in each road respectively by the filtering process circuit
The output end of noise demodulation treatment channel, the signal processing module is communicated to connect by the data acquisition output interface circuit
Input.As shown in figure 5, the filtering process circuit is used to carry out further at filtering each road baseband receiving signals
Reason.
The system for human action extraction that the present embodiment provides, has the advantages that：(1) system carries
A kind of human action extraction equipment that can be directly worn on human body and send out/receive function with electromagnetic wave signal is supplied, it can one
Aspect sends carrier (boc) modulated signals using Worn type beacon, each antenna in conformal array antenna on the other hand can be utilized to receive single
Member receives the carrier (boc) modulated signals to sense, and obtains baseband receiving signals amplitude information and Baseband Receiver letter in corresponding reception signal
Number phase information, and being settled accounts using these information to magnetic distribution equation matrix, Worn type beacon is obtained relative to connecing
The relative coordinate position of antenna is received, and then completes the human action extraction purpose of human body corresponding with Worn type beacon；(2)
Positioned by being then based on Electromagnetic Wave Propagation, relative to based on optical extracting mode, using possessed by electromagnetic wave
The extraction of the problem of stronger diffraction characteristic blocks to avoid the occurrence of action or acts gaps and omissions, i.e. human action is complete, does not fall frame and asks
Topic；(3) because without application image treatment technology, relative to based on optical extracting mode, pending data volume is significantly
Reduce, the speed of human action extraction is exceedingly fast；(4) because conformal array antenna is integrally fixed on the privileged site of human body, relative to
Extracting mode based on acceleration transducer, absolute location information of the beacon transmitter relative to human body, Ke Yi great can be obtained
The extraction accuracy of big lifting human action；(5) system for human action extraction, also with system architecture it is simple,
Do not limited by place, strong antijamming capability, method and step easily realize the advantage such as low with extraction cost, be easy to practical application and push away
Extensively.
As described above, it can preferably realize the utility model.For a person skilled in the art, it is new according to this practicality
The teaching of type, design various forms of systems for human action extraction and do not need performing creative labour.Do not departing from
These embodiments are changed in the case of principle of the present utility model and spirit, changes, replace, integrating and modification is still fallen within
In the scope of protection of the utility model.
Claims (7)
1. a kind of system for human action extraction, it is characterised in that including signal processing module, Worn type beacon, wear
Formula conformal array antenna, low noise multichannel array and multichannel A/D acquisition modules, wherein, the Worn type conformal array antenna bag
Containing N number of antenna receiving unit, the low noise multichannel array includes N roads low noise demodulation process passage, N be not less than
3 natural number；
The output end of the signal processing module communicates to connect the input of the Worn type beacon, and each antenna receives single
Member communicates to connect the input of low noise demodulation process passage described in each road correspondingly respectively, and low noise described in each road demodulates
The output end for the treatment of channel communicates to connect each A/D collection inputs of the multichannel A/D acquisition modules correspondingly respectively
End, the A/D collection output ends of the multichannel A/D acquisition modules communicate to connect the input of the signal processing module.
A kind of 2. system for human action extraction as claimed in claim 1, it is characterised in that the signal processing module
Include central processing circuit, sequential processing circuit, output interface circuit and data acquisition input interface circuit；
The central processing circuit communicates to connect the sequential processing circuit, the output interface circuit and the data and adopted respectively
Collect input interface circuit, the sequential processing circuit also communicates to connect the output interface circuit；
The central processing circuit communicates to connect the input of the Worn type beacon by the output interface circuit, passes through institute
State the A/D collection output ends that data acquisition input interface circuit communicates to connect the multichannel A/D acquisition modules.
A kind of 3. system for human action extraction as claimed in claim 2, it is characterised in that the signal processing module
Also include the communication connection central processing circuit applies output interface circuit and/or memory.
A kind of 4. system for human action extraction as claimed in claim 1, it is characterised in that the Worn type beacon bag
Contain the first input interface circuit, first control circuit, the first clock generation circuit, first carrier combiner circuit, modulation circuit
And transmitting antenna；
The first control circuit communicates to connect first input interface circuit, first clock generation circuit and institute respectively
Modulation circuit is stated, first clock generation circuit also communicates to connect the first carrier combiner circuit and the modulation circuit,
The first carrier combiner circuit also communicates to connect the modulation circuit, and the modulation circuit also communicates to connect the transmitting day
Line；
The first control circuit communicates to connect the output end of the signal processing module by first input interface circuit.
5. a kind of system for human action extraction as claimed in claim 4, it is characterised in that the Worn type beacon is also
Include charging induction coil and second source process circuit；
The charging induction coil electrically connects the input of the second source process circuit, the second source process circuit
Output end electrically connects the power end of the first control circuit.
A kind of 6. system for human action extraction as claimed in claim 1, it is characterised in that the low noise multichannel
Array also includes the second input interface circuit, second control circuit, second clock generation circuit and the second carrier wave combiner circuit,
Low noise demodulation process passage includes low noise amplification link, demodulator circuit, the base communicated to connect successively respectively described in each road
Band filter circuit and A/D interface circuits；
The second control circuit communicates to connect second input interface circuit, the second clock generation circuit and each respectively
The demodulator circuit in low noise demodulation process passage described in road, the second clock generation circuit also communicate to connect described
Nd carrier combiner circuit, the second carrier wave combiner circuit also communicate to connect the institute in low noise demodulation process passage described in each road
State demodulator circuit；
The second control circuit communicates to connect the output end of the signal processing module by second input interface circuit.
7. a kind of system for human action extraction as claimed in claim 1, it is characterised in that the multichannel A/D is adopted
Collection module includes multi-channel a/d converter, filtering process circuit and data acquisition output interface circuit；
The multi-channel a/d converter communicates to connect the filtering process circuit and data acquisition output interface electricity respectively
Road；
The multi-channel a/d converter communicates to connect low noise demodulation process described in each road respectively by the filtering process circuit
The output end of passage, the input of the signal processing module is communicated to connect by the data acquisition output interface circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107037886A (en) * | 2017-05-27 | 2017-08-11 | 成都索微通讯技术有限公司 | A kind of system and its method of work extracted for human action |
| CN110333692A (en) * | 2019-07-04 | 2019-10-15 | 南京农业大学 | The automatic monitoring diagnosis system of pig fever based on thermal infrared |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107037886A (en) * | 2017-05-27 | 2017-08-11 | 成都索微通讯技术有限公司 | A kind of system and its method of work extracted for human action |
| CN110333692A (en) * | 2019-07-04 | 2019-10-15 | 南京农业大学 | The automatic monitoring diagnosis system of pig fever based on thermal infrared |
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