CN109497968A - A kind of life signal synchronized measurement system and measurement method for bioradar detection - Google Patents
A kind of life signal synchronized measurement system and measurement method for bioradar detection Download PDFInfo
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- CN109497968A CN109497968A CN201811231260.4A CN201811231260A CN109497968A CN 109497968 A CN109497968 A CN 109497968A CN 201811231260 A CN201811231260 A CN 201811231260A CN 109497968 A CN109497968 A CN 109497968A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/0205—Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/08—Detecting, measuring or recording devices for evaluating the respiratory organs
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6813—Specially adapted to be attached to a specific body part
- A61B5/6823—Trunk, e.g., chest, back, abdomen, hip
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6813—Specially adapted to be attached to a specific body part
- A61B5/6825—Hand
- A61B5/6826—Finger
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/683—Means for maintaining contact with the body
- A61B5/6831—Straps, bands or harnesses
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/683—Means for maintaining contact with the body
- A61B5/6838—Clamps or clips
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
Abstract
The invention discloses a kind of life signal synchronized measurement systems and measurement method for bioradar detection, belong to bioradar and life signal field of measuring technique.Including being located at multiple touch sensor groups and control display end；Each touch sensor group includes a piezoelectric type respiration transducer and a photosensitive type pulse transducer；Control display end includes computer and bluetooth router, and touch sensor group passes through bluetooth router and computer communication；Computer and bioradar system communication, for monitoring the working condition of bioradar system.Third party software monitor is established using the Hook technology in windows messaging mechanism, start/stop the event message of measurement using hook capture bioradar system software, when monitoring bioradar starts/stops to save the event of data, triggering synchronized measurement system starts/stops to save data immediately, realizes the time synchronization of the acquired data of the two.
Description
Technical field
The invention belongs to bioradars and life signal field of measuring technique, are related to a kind of life for bioradar detection
Order signal synchronized measurement system and measurement method.
Background technique
Bioradar is a kind of New Type Radar technology with life entity (human body or animal) for detected object, it is with special thunder
Electromagnetic wave up to transmitting is detection medium, can penetrate that clothing, grove, wall, ruins etc. are nonmetallic to block, non-contact acquisition human body
Target information has a wide range of applications in fields such as military affairs, public safety, biomedicines.
As a kind of novel Non-contact Life Detecting technology, experimental study is carried out to bioradar technology and usually needs to comment
Estimate the reliability and accuracy of detection result.Domestic and foreign literature shows that the evaluation of bioradar experimental result can be roughly divided into two
Class: one kind is judged according to the prior information of human body respiration, palmic rate range, usually the function of observation processing back echo
Whether rate spectrum peak frequency is consistent with the prior information；Another kind of is while bioradar detection to human body respiration, heartbeat
Equal life signals synchronize measurement, and the measurement result is used to refer to.Obviously first kind evaluation method is subjective,
It is simply possible to use in the qualitative evaluation of bioradar detection result, such as verifies system feasibility, determine whether target.With biological thunder
Up to the development of technology, method for synchronously measuring increasingly becomes a kind of necessary means for carrying out correlative study, is such as based on bioradar
More human body target identifications, heart rate variability analysis etc. requires reference signal and carrys out arriving for quantitative analysis bioradar testing result
Breathing and heart rate reliability and accuracy.
At this stage, the synchronized measurement system for bioradar detection is all made of the human body that contact method detects and exhales
The signals such as suction, electrocardio, pulse are used as reference, and the Human Physiology information measurement instrument relative to commercializations such as polygraphs
Device, using the system of the small contacts formula sensor such as ECG electrode, photoelectric sensor exploitation not only in the side such as cost, volume, weight
Face has more advantage, and is more suitable for carrying out bioradar detection experiment under several scenes, as ruins, more human bodies are simulated in outfield
Target acquisition etc., but with bioradar system simultaneously in use, exist both measurement signal it is how synchronous in time
Problem --- how the software of two kinds of systems is manipulated to make it start simultaneously at/stop and to measure simultaneously.
Summary of the invention
The purpose of the present invention is to provide a kind of life signal synchronized measurement systems and measurement for bioradar detection
Method, which measures human body respiration and pulse signal using miniaturization touch sensor respectively, and passes through Hook Technique reality
The time synchronization of existing touch sensor group and the measurement of bioradar system data.
The present invention is to be achieved through the following technical solutions:
The invention discloses a kind of life signal synchronized measurement systems for bioradar detection, including control display end
With several touch sensor groups；
Each touch sensor group include one for obtain human body respiration signal piezoelectric type respiration transducer and
One for obtaining the photosensitive type pulse transducer of human pulse signal；Control display end includes computer and bluetooth router,
Touch sensor group passes through bluetooth router and computer communication；
Computer and bioradar system communication, for monitoring the working condition of bioradar system.
Preferably, computer uses Windows operating system, and bluetooth router uses 4.0 agreement of bluetooth, bluetooth router
Pass through USB interface and computer wired connection.
Preferably, 2.402~2.480GHz of operating frequency range of bluetooth router, wireless communication distance is most far
100m, channel capacity 1Mbps.
Preferably, piezoelectric type respiration transducer includes the first power module, the piezoelectricity being separately connected with the first power module
Element, the first signal conditioning circuit, the first ADC Analog-digital Converter module and the first bluetooth module；Piezoelectric element, the first signal
Conditioning circuit, the first ADC Analog-digital Converter module and the first bluetooth module are sequentially connected electrically by circuit；First bluetooth module
It is communicated with bluetooth router；
The systolic pressure variation and diastolic pressures variation generated when piezoelectric element is used to detect breathing in body surface, first
Signal conditioning circuit is used to convert number for analog signal for exporting respiratory waveform, the first ADC Analog-digital Converter module
Signal.
Preferably, photosensitive type pulse transducer includes second power supply module, is separately connected with second power supply module photosensitive
Element, second signal conditioning circuit, the 2nd ADC Analog-digital Converter module and the second bluetooth module；Light-sensitive element, second signal
Conditioning circuit, the 2nd ADC Analog-digital Converter module and the second bluetooth module are sequentially connected electrically by circuit；Second bluetooth module
It is communicated with bluetooth router；
Light-sensitive element is used for detecting the variation of finger small blood vessels volume caused by cardiomotility, second signal conditioning circuit
In output pulse wave, the 2nd ADC Analog-digital Converter module is used to convert digital signal for analog signal.
The invention also discloses the measurement methods based on above-mentioned life signal synchronized measurement system, comprising the following steps:
(1) synchronized measurement system software is installed on computer, first with the USB serial port function of bluetooth router, is used
Serial port communication technology establishes bluetooth data communication；
(2) collected breath signal and pulse signal are sent to calculating by bluetooth router by touch sensor group
Machine, computer according to the frame head of different sensors data packet extract multichannel breathing and pulse data, and based on multithreading into
Each circuit-switched data waveform and parameter are shown after the corresponding pretreatment of row；
(3) third party software monitor, the third party software are established using the Hook Technique in windows messaging mechanism
For biological radar system software；
Wherein, third party software monitor is established using the Hook Technique in windows messaging mechanism: being captured using hook
Bioradar system software starts/stops the event message of measurement, when monitoring bioradar system software starts/stop to save number
According to event when, triggering synchronized measurement system software start/stop save data, make touch sensor group and bioradar system
The time synchronization for acquired data of uniting.
Preferably, the specific steps of bluetooth data communication are established are as follows:
SPCOMM control, the corresponding sensor of each SPCOMM control are used first in synchronized measurement system software；
Then, the control object of SPCOMM control is set and attribute initializes the USB serial ports on computer, it is described
Control object is virtual com port；
It finally realizes that data are transmitted using event driven manner, i.e., triggers control when the virtual com port receives data
The OnRecieveData event of part is parsed and is shown to it after reading the data packet in caching in the event.
Preferably, the method for data parsing and display are as follows: touch sensor is read by wireless Bluetooth data link
After the data packet that group is sent back to, computer established except serial port communication thread new thread data are read out, pre-process and
Display.
Preferably, touch sensor group acquisition breath signal and the specific step of pulse signal are as follows:
Piezoelectric type respiration transducer using piezoelectric element detection breathing when body surface generate systolic pressure variation and
Diastolic pressures variation, the systolic pressure variation and diastolic pressures variation export respiratory wave after the first signal conditioning circuit
Shape, then by being sent to the first bluetooth module after the first ADC Analog-digital Converter module samples；
Meanwhile photosensitive type pulse transducer passes through finger small blood vessels volume caused by the cardiomotility of photosensitive type element testing
Then variation exports pulse wave by second signal conditioning circuit, after the 2nd ADC Analog-digital Converter module samples
It is sent to the second bluetooth module.
Preferably, the method for establishing third party software monitor using the Hook Technique in windows messaging mechanism are as follows:
Computer specifies third party software to start/stop to measure the relevant information of button before installing hook；
Then Mouse hook is installed to monitor that bioradar system software starts/stop the mouse-click thing of measurement button
Part；
Specified bioradar system software starts/stops to save the file path of data；
Last installation file hook monitors the file read-write event of specified path, triggers synchro measure by the event
System software starts/stops to measure, while the automatic filename for obtaining bioradar access of data files, is on this basis same
The data file name that measuring system saves is walked, for testing the check analysis of latter two data.
Compared with prior art, the invention has the following beneficial technical effects:
Life signal synchronized measurement system disclosed by the invention for bioradar detection, overall architecture includes multiple connects
Touch sensor group and control display end two parts, each touch sensor group include 1 piezoelectric type respiration transducer and 1
Photosensitive type pulse transducer can be used for more human body target detections；Controlling display end includes computer and bluetooth router, bluetooth road
It is responsible for carrying out wireless data transmission with sensor group by device；In addition, running synchronized measurement system software on backend computer, simultaneously
Connection bioradar simultaneously runs its system software, and synchronized measurement system software monitors biological thunder by Window message mechanism automatically
Up to the working condition of system software, to realize the synchronization of the two data acquisition.Have the characteristics that low cost, can be portable, unitized,
Not only quantitative criterion and reference can be provided for the bioradar detection experiment of the several scenes such as the inside and outside, multiple target detection in laboratory,
And a kind of easy-to-use universal method and means can be provided for the quantitative detection of life signal in biomedical research.
Further, piezoelectric type respiration transducer and photosensor are in addition to basic sensing measurement function, two kinds of sensings
Device built-in power module, has feature small in size, light-weight, convenient to use.
Measurement method based on life signal synchronized measurement system of the invention, initially sets up bluetooth data communication, then mention
The multichannel breathing for taking sensor measurement to obtain and pulse data, are pre-processed, later using in windows messaging mechanism
Hook technology establishes third party software monitor, realizes the time of touch sensor group and the acquired data of bioradar system
It is synchronous.Bioradar system software is taken as third party software always, and different bioradar system softwares is only needed to understand
It starts/stops the relevant information saving, hereby it is ensured that the versatility of synchronized measurement system software.
Further, piezoelectric type respiration transducer is detected the contraction generated when breathing in body surface using piezoelectric element and relaxed
Pressure change is opened, photosensitive type pulse transducer passes through light-sensitive element and detects the change of finger small blood vessels volume caused by cardiomotility
Change, pressure change or volume variation are by being sent to bluetooth after signal conditioning circuit and ADC Analog-digital Converter resume module
Module is wirelessly transferred by bluetooth module, and collected signal is transferred to bluetooth router.
Detailed description of the invention
Fig. 1 is the integrated stand composition of synchronized measurement system of the present invention；
Fig. 2 is the functional block diagram of piezoelectric type respiration transducer of the present invention；
Fig. 3 is the functional block diagram of photosensitive type pulse transducer of the present invention；
Fig. 4 is method for synchronously measuring flow chart of the present invention；
Fig. 5 is basic principle block diagram of the synchronized measurement system software of the present invention as third party software monitor.
Specific embodiment
Below with reference to specific embodiment, the present invention is described in further detail, it is described be explanation of the invention and
It is not to limit.
The overall architecture of synchronized measurement system is briefly described first: Fig. 1 is system overall architecture schematic diagram.Such as figure
Shown in 1, the life signal synchronized measurement system for bioradar detection of the invention includes sensor front end and control display
Rear end two parts.Wherein sensor front end is multiple touch sensor groups, and every group includes 1 piezoelectric type respiration transducer and 1
A photosensitive type pulse transducer can be used for more human body target detections.Control display rear end includes computer and bluetooth router, indigo plant
Tooth router is contacted using 4.0 standard of bluetooth with the multiple of front end by USB interface and computer wired connection, bluetooth router
Formula sensor group is wirelessly connected, under the standard: 1) 2.402~2.480GHz of operating frequency range；2) wireless communication distance is most
Remote reachable 100m；3) channel capacity is 1Mbps.Bluetooth router is responsible for carrying out wireless data transmission with front end sensors group, then
Transfer data to computer；In addition, backend computer uses Windows operating system, it is soft that synchronized measurement system is run thereon
Part, while connecting bioradar and running its system software.
As shown in Fig. 2, piezoelectric type respiration transducer includes the first power module, the pressure being separately connected with the first power module
Electric device, the first signal conditioning circuit, the first ADC Analog-digital Converter module and the first bluetooth module；Piezoelectric element, the first letter
Number conditioning circuit, the first ADC Analog-digital Converter module and the first bluetooth module are sequentially connected electrically by circuit；First bluetooth mould
Block and bluetooth router communicate.The contraction generated when piezoelectric type respiration transducer is using piezoelectric element detection breathing in body surface
Change with diastolic pressures, which exports respiratory waveform after built-in first signal conditioning circuit, then passes through first
Bluetooth module is sent to after ADC Analog-digital Converter module samples to be wirelessly transferred, the first ADC Analog-digital Converter module
Sampling precision is 8, sample rate 50Hz, and cooperation elastic bands are strapped in human chest when use or abdomen measures.
As shown in figure 3, photosensitive type pulse transducer includes second power supply module, the light being separately connected with second power supply module
Quick element, second signal conditioning circuit, the 2nd ADC Analog-digital Converter module and the second bluetooth module；Light-sensitive element, the second letter
Number conditioning circuit, the 2nd ADC Analog-digital Converter module and the second bluetooth module are sequentially connected electrically by circuit；Second bluetooth mould
Block and bluetooth router communicate.Photosensitive type pulse transducer refers to folder measurement using infrared opposite-radiation formula, is examined by photosensitive type element
It surveys finger small blood vessels volume caused by cardiomotility to change, pulse wave is then exported by second signal conditioning circuit, then
It is wirelessly transferred by being sent to the second bluetooth module after the 2nd ADC Analog-digital Converter module samples, the 2nd ADC simulation
The sampling precision of data-converting block is 8, sample rate 200Hz.In addition to basic sensing measurement function, two kinds of sensors are equal
Built-in power module has feature small in size, light-weight, convenient to use.
The system software workflow of synchronized measurement system is illustrated: as shown in figure 4, the software is first with being made
Turn serial port function with the USB of bluetooth router, bluetooth data communication is established using serial port communication technology；Then according to different sensings
The frame head of device data packet extracts multichannel breathing and pulse data, and shows after being pre-processed accordingly based on multithreading progress each
Circuit-switched data waveform and parameter；Next, establishing third party software using Hook (hook) technology in windows messaging mechanism
Monitor starts/stops the event message of measurement using hook capture bioradar system software, when monitoring bioradar system
When system software starts/stop to save the event of data, synchronized measurement system software is triggered immediately and starts/stop to save data, from
And realize the time synchronization of the acquired data of the two.In above-mentioned process, bioradar system software is taken as third party always
Software need to only understand its relevant information for starting/stopping to save for different bioradar system softwares, hereby it is ensured that same
Walk the versatility of measuring system software.
Serial port communication method in synchronized measurement system software is illustrated: being controlled in software using SPCOMM first
Part, the corresponding sensor of each control；Then the control object (virtual com port) and attribute for SPCOMM control being arranged are to serial ports
It is initialized；Finally realize that data are transmitted using event driven manner, i.e. the triggering when the virtual com port receives data
The OnRecieveData event of control is parsed and is shown to it after reading the data packet in caching in the event.Table 1
For the facilities of the underlying attribute of SPCOMM control in software, wherein baud rate is set as 9600bps, according to aforementioned selected biography
The sample frequency and precision of sensor, meet the requirement of message transmission rate.
The underlying attribute setting of SPCOMM control in 1 synchronized measurement system software of table
Data in synchronized measurement system software are parsed and display methods is illustrated: by wireless Bluetooth data link
After reading the data packet that sensor front end is sent back to, system software realizes the parsing and display of data using multithreading, i.e.,
It establishes new thread except serial port communication thread to be read out data, pre-process and show, to ensure the excellent of data communication
First grade and real-time, to guarantee that data parsing and display link do not influence the synchronism of sensor Yu bioradar data.By
All it is that same data are written and read in the two threads, critical zone is used in multi-thread programming
(CriticalSection) method is next data cached, complete to destroy data when avoiding multiple threads while accessing same data
The problem of whole property.In addition, front-end sensor data is packaged before carrying out Bluetooth wireless transmission by defined data format, thus rear end
The software identification sensor type from data packet head automatically, convenient for the pretreatment and display of waveform subsequent data.
The method for realizing that third party software monitor uses in synchronized measurement system software is illustrated: as shown in figure 5,
First in view of different bioradar system softwares start/stop to measure the definition difference of button, such as the software having is
" beginning ", the software having are " starting to acquire " or " starting to save ", and synchronized measurement system software needs specified the before installing hook
Software of the third party starts/stops to measure the relevant information of button；Then Mouse hook is installed to monitor that bioradar system software is opened
Beginning/stopping measurement button mouse-click event；It next is not to pass through a little in view of certain bioradar system softwares exist
Button is hit to start/stop to measure, but these bioradar softwares start/stop necessarily triggering certain all the way when saving data
The read-write event of file under diameter, thus specify corresponding file path；Then installation file hook monitors the text of specified path
Part reads and writes event, and synchronized measurement system software is triggered by the event and starts/stop to measure, while can also obtain life automatically
The filename of object radar access of data files carrys out the data file name saved for synchronized measurement system on this basis, can be with
Facilitate the check analysis of experiment latter two data.In addition to this, it is contemplated that bioradar and the practical fortune of synchronized measurement system software
It adheres to different processes when row separately, causes the former that can not call directly the latter's process address sky since each process address space is separated by
Between Hook Function, thus above-mentioned mouse and file hook use global hook --- i.e. by Hook Function establish dll (dynamically
Chained library) in file, to realize that multiple processes are shared, while in order to guarantee that the event type in dll, beginning/stopping are related
The visibility of other processes of the parameter informations such as information, file path and filename, using memory limited technology --- exist
Special application heap is defined in dll to save these parametric variables, realizes effective parameter transmitting.
Claims (10)
1. it is a kind of for bioradar detection life signal synchronized measurement system, which is characterized in that including control display end and
Several touch sensor groups；
Each touch sensor group includes the piezoelectric type respiration transducer for being used to obtain human body respiration signal and one
For obtaining the photosensitive type pulse transducer of human pulse signal；Control display end includes computer and bluetooth router, contact
Formula sensor group passes through bluetooth router and computer communication；
Computer and bioradar system communication, for monitoring the working condition of bioradar system.
2. the life signal synchronized measurement system according to claim 1 for bioradar detection, which is characterized in that meter
Calculation machine uses Windows operating system, and bluetooth router uses 4.0 agreement of bluetooth, and bluetooth router is by USB interface and calculates
Machine wired connection.
3. the life signal synchronized measurement system according to claim 1 for bioradar detection, which is characterized in that blue
2.402~2.480GHz of operating frequency range of tooth router, wireless communication distance most far 100m, channel capacity 1Mbps.
4. the life signal synchronized measurement system according to claim 1 for bioradar detection, which is characterized in that pressure
Electric-type respiration transducer includes the first power module, the piezoelectric element being separately connected with the first power module, the first signal condition
Circuit, the first ADC Analog-digital Converter module and the first bluetooth module；Piezoelectric element, the first signal conditioning circuit, the first ADC
Analog-digital Converter module and the first bluetooth module are sequentially connected electrically by circuit；First bluetooth module and bluetooth router are logical
News；
The systolic pressure variation and diastolic pressures variation generated when piezoelectric element is used to detect breathing in body surface, the first signal
Conditioning circuit is used to convert digital signal for analog signal for exporting respiratory waveform, the first ADC Analog-digital Converter module.
5. the life signal synchronized measurement system according to claim 1 for bioradar detection, which is characterized in that light
Sensitive pulse transducer includes second power supply module, the light-sensitive element that is separately connected with second power supply module, second signal conditioning
Circuit, the 2nd ADC Analog-digital Converter module and the second bluetooth module；Light-sensitive element, second signal conditioning circuit, the 2nd ADC
Analog-digital Converter module and the second bluetooth module are sequentially connected electrically by circuit；Second bluetooth module and bluetooth router are logical
News；
Light-sensitive element is for detecting the variation of finger small blood vessels volume caused by cardiomotility, and second signal conditioning circuit is for defeated
Pulse wave out, the 2nd ADC Analog-digital Converter module are used to convert digital signal for analog signal.
6. based on the measurement method of life signal synchronized measurement system described in Claims 1 to 5 any one, feature exists
In, comprising the following steps:
(1) synchronized measurement system software is installed, first with the USB serial port function of bluetooth router, using serial ports on computer
The communication technology establishes bluetooth data communication；
(2) collected breath signal and pulse signal are sent to computer by bluetooth router by touch sensor group,
Computer extracts multichannel breathing and pulse data according to the frame head of different sensors data packet, and carries out phase based on multithreading
Each circuit-switched data waveform and parameter are shown after the pretreatment answered；
(3) third party software monitor is established using the Hook Technique in windows messaging mechanism, the third party software is made a living
Object radar system software；
Wherein, third party software monitor is established using the Hook Technique in windows messaging mechanism: capturing biology using hook
Radar system software starts/stops the event message of measurement, when monitoring bioradar system software starts/stop to save data
When event, triggering synchronized measurement system software starts/stops to save data, makes touch sensor group and bioradar system institute
Acquire the time synchronization of data.
7. measurement method according to claim 6, which is characterized in that establish the specific steps of bluetooth data communication are as follows:
SPCOMM control, the corresponding sensor of each SPCOMM control are used first in synchronized measurement system software；
Then, the control object of SPCOMM control is set and attribute initializes the USB serial ports on computer, the control
Object is virtual com port；
Finally realize that data are transmitted using event driven manner, i.e. the trigger control when the virtual com port receives data
OnRecieveData event is parsed and is shown to it after reading the data packet in caching in the event.
8. measurement method according to claim 7, which is characterized in that the method for data parsing and display are as follows: by wireless
After bluetooth data link reads the data packet that touch sensor group is sent back to, computer is established newly except serial port communication thread
Thread data are read out, pre-process and are shown.
9. measurement method according to claim 6, which is characterized in that touch sensor group acquires breath signal and pulse
The specific step of signal are as follows:
Piezoelectric type respiration transducer is using the systolic pressure variation and diastole generated when piezoelectric element detection breathing in body surface
Pressure change, the systolic pressure variation and diastolic pressures variation export respiratory waveform after the first signal conditioning circuit, so
Afterwards by being sent to the first bluetooth module after the first ADC Analog-digital Converter module samples；
Meanwhile photosensitive type pulse transducer is become by finger small blood vessels volume caused by the cardiomotility of photosensitive type element testing
Change, pulse wave is then exported by second signal conditioning circuit, finally by sending out after the 2nd ADC Analog-digital Converter module samples
It send to the second bluetooth module.
10. measurement method according to claim 6, which is characterized in that utilize the Hook Technique in windows messaging mechanism
The method for establishing third party software monitor are as follows:
Computer specifies third party software to start/stop to measure the relevant information of button before installing hook；
Then Mouse hook is installed to monitor that bioradar system software starts/stop the mouse-click event of measurement button；
Specified bioradar system software starts/stops to save the file path of data；
Last installation file hook monitors the file read-write event of specified path, triggers synchronized measurement system by the event
Software starts/stops to measure, while the automatic filename for obtaining bioradar access of data files, is on this basis same pacing
The data file name that amount system saves, for testing the check analysis of latter two data.
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Citations (13)
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