CN107822641A - A kind of sole stress dynamic measurement device and method - Google Patents

A kind of sole stress dynamic measurement device and method Download PDF

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Publication number
CN107822641A
CN107822641A CN201711025618.3A CN201711025618A CN107822641A CN 107822641 A CN107822641 A CN 107822641A CN 201711025618 A CN201711025618 A CN 201711025618A CN 107822641 A CN107822641 A CN 107822641A
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sole
measurement
stress
circuit
differential pressure
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赵栓峰
刘敏
郭卫
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Xian University of Science and Technology
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Xian University of Science and Technology
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Priority to CN201711025618.3A priority Critical patent/CN107822641A/en
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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
    • A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
    • A61B5/1036—Measuring load distribution, e.g. podologic studies
    • A61B5/1038—Measuring plantar pressure during gait
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
    • A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb
    • A61B5/112—Gait analysis
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/117—Identification of persons
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
    • A61B2562/02—Details of sensors specially adapted for in-vivo measurements
    • A61B2562/0247—Pressure sensors

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medical Informatics (AREA)
  • Physics & Mathematics (AREA)
  • Veterinary Medicine (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Public Health (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Physiology (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Abstract

The invention discloses a kind of sole stress dynamic measurement device and method, it is identical with the shape of shoe-pad mounted in the conductive pad between sole and shoe-pad, N number of measuring electrode being laid on conductive pad and the stress measurement device being connected with N number of measuring electrode, the shape of conductive pad that the device includes pad；N number of measuring electrode is laid along the outer edge line of conductive pad, the spacing all same between two neighboring measuring electrode；This method to the stress distribution of in walking process to be measured sole measures using sole stress dynamic measurement device and according to time interval set in advance, and obtains the stress distribution measurement result of each measurement moment sole to be measured.The present invention between sole and shoe-pad by laying conductive pad of the resistivity with stress variation, and be laid in using the outer edge line along conductive pad on conductive pad and N number of measuring electrode for contact with conductive pad realizes that stress distribution measures, can be easy, accurate and real-time measure sole true stress distribution.

Description

A kind of sole stress dynamic measurement device and method
Technical field
The invention belongs to measuring of human health field, more particularly, to a kind of sole stress dynamic measurement device and method.
Background technology
People increasingly pay close attention to the health status of body in recent years, support of the sole as whole human body, subject whole The pressure of body, its health status are even more to be valued by people.In general sole pressure-measuring system is to install sensor Measurement footwear sole (5) or shoe-pad (6), subject put on this footwear can with normal activity without influenceing its natural gait, but It can only measure the size of sole pressure.The specific stressing conditions of sole different parts can not be reflected, can not be to pin Bottom stressing conditions carry out real time imagery and shown, it is impossible to it is bad walk appearance carry out early warning, rectifying walking；In addition, by different The sole stress distribution of body is studied, and can also realize the discriminating of identity, and new means are provided to criminal detection.
The content of the invention
In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is that provide a kind of sole stress Dynamic measurement device, by laying conductive pad of the resistivity with stress variation between sole and shoe-pad, and use along conductive pad Outer edge line N number of measuring electrode for being laid on conductive pad and being contacted with conductive pad realize that stress distribution measures, can be easy, accurate Measure really and in real time sole true stress distribution.
In order to solve the above technical problems, the technical solution adopted by the present invention is：A kind of sole stress dynamic measurement device and Method, including pad mounted between sole and shoe-pad conductive pad, N number of measuring electrode being laid on conductive pad and with N number of institute The stress measurement device of measuring electrode connection is stated, the shape of the conductive pad is identical with the shape of shoe-pad；N number of measuring electrode Laid along the outer edge line of conductive pad, the spacing all same between the two neighboring measuring electrode；Wherein, N is just whole Number and N >=6；One end of each measuring electrode is connected with stress measurement device and its other end closely connects with conductive pad Touch.
A kind of above-mentioned sole stress dynamic measurement device, it is characterized in that：The conductive pad is conductive rubber pad.
A kind of above-mentioned sole stress dynamic measurement device, it is characterized in that：The stress measurement device is laid on sole.
A kind of above-mentioned sole stress dynamic measurement device, it is characterized in that：It is also wireless including being connected with stress measurement device Emitter.
A kind of above-mentioned sole stress dynamic measurement device, it is characterized in that：The wireless launcher is laid on sole.
A kind of above-mentioned sole stress dynamic measurement device, it is characterized in that：The structure snd size of N number of measuring electrode are homogeneous Together；The measuring electrode is disc-shaped electrode, and the measuring electrode is fixed on conductive pad by fastener.
A kind of above-mentioned sole stress dynamic measurement device, it is characterized in that：Each measuring electrode and stress measurement device Between be attached by wire.
A kind of above-mentioned sole stress dynamic measurement device, it is characterized in that：The stress measurement device includes driving source, control Device and differential pressure measuring cell, two measuring electrodes of arbitrary neighborhood are connected and group with driving source in N number of measuring electrode Into an exciting circuit, N number of measuring electrode and driving source form N number of exciting circuit, N number of exciting circuit by Controller carries out break-make control, and N number of exciting circuit is connected with controller；
Two measuring electrodes of arbitrary neighborhood are connected with differential pressure measuring cell and form one in N number of measuring electrode Individual differential pressure measurement circuit, N number of measuring electrode form N number of differential pressure measurement circuit, N number of pressure with differential pressure measuring cell Difference measurements circuit carries out break-make control by controller, and N number of differential pressure measurement circuit is connected with controller；The pressure difference is surveyed Amount unit is the measuring unit measured to the voltage difference between connected two measuring electrodes.
A kind of above-mentioned sole stress dynamic measurement device, it is characterized in that：The stress measurement device also includes surveying with pressure difference Measure the signal amplification circuit of unit connection；
The controller carries out break-make control to N number of exciting circuit by the first multicircuit switch, N number of described sharp Circuit is encouraged to be connected with the first multicircuit switch；
The controller carries out break-make control, N number of institute by the second multicircuit switch to N number of differential pressure measurement circuit Differential pressure measurement circuit is stated to be connected with the second multicircuit switch；
First multicircuit switch and the second multicircuit switch be controlled by controller and the two with control Device connection processed.
Meanwhile the invention also discloses a kind of method and step is simple, reasonable in design and use is easy to operate, using effect is good Sole stress dynamic measurement method, it is characterised in that：Using the sole stress dynamic measurement device and according to presetting Time interval TSurveyThe stress distribution of sole to be measured in walking process is measured, and obtains each measurement moment sole to be measured Stress distribution measurement result；The stress distribution measuring method all same of sole to be measured described in each measurement moment；
When being measured to any stress distribution for measuring moment sole to be measured, comprise the following steps：
Step 1: data acquisition：Break-make control is carried out by controller respectively to N number of exciting circuit, by elder generation to rear Complete the data acquisition under N kind difference excitation states；There is an institute under every kind of excitation state in N number of exciting circuit State exciting circuit in an ON state and remaining N-1 exciting circuits are in off-state；
Data acquisition all same under N kind excitation states；Data acquisition under any excitation state is as follows：
Step 101, the control of exciting circuit break-make：Break-make control is carried out by controller respectively to N number of exciting circuit, One under this kind of excitation state in an ON state exciting circuit is connected, and is made under this kind of excitation state in disconnection Remaining N-1 exciting circuits of state disconnect；
In this step, the exciting circuit in an ON state is current excitations circuit, in the current excitations circuit Two measuring electrodes be exciting electrode；
The differential pressure measurement circuit comprising the exciting electrode disconnects pressure difference to be current in N number of differential pressure measurement circuit Measuring circuit, the current quantity for disconnecting differential pressure measurement circuit is 3；3 current disconnections in N number of measuring electrode The N-3 differential pressure measurement circuits outside differential pressure measurement circuit are current connection differential pressure measurement circuit；
Step 102, the control of differential pressure measurement connecting and disconnecting of the circuit：N number of differential pressure measurement circuit is carried out respectively by controller Break-make controls, and 3 current differential pressure measurement circuits that disconnect in step 101 is in off-state, and make to work as described in N-3 Preceding connection differential pressure measurement circuit is in on-state；
Step 103, differential pressure measurement：Using differential pressure measuring cell current connection differential pressure measurement described to N-3 in step 102 Voltage difference between two measuring electrodes of circuit measures respectively, obtains N-3 voltage difference measurement result, and By the N-3 voltage difference measurement result synchronous driving obtained to controller；The N-3 voltage difference measurement result obtained For the data acquisition results under this kind of excitation state；
Step 104, multiplicating step 101 to step 103, complete the data acquisition under N kind difference excitation states, And obtain the data acquisition results under N kind excitation states；Data acquisition results under N kind excitation states include N × (N-3) individual electricity Pressure difference measurement result；
Step 2: the processing based on ERT：Using controller or the host computer to be communicated with controller and calling ERT module, the individual voltage difference measurement results of N × (N-3) obtained in step 1 are handled, obtain the survey The ERT result of moment sole to be measured is measured, the ERT result obtained is the measurement moment sole to be measured Stress distribution measurement result；
Step 3: return to step one, stress distribution measurement is carried out to next measurement moment sole to be measured.
The present invention has advantages below compared with prior art：
1st, used sole stress dynamic measurement device is simple in construction, reasonable in design and simple processing, input cost compared with It is low.
2nd, used stress measurement device is reasonable in design, and stress sensitive is used as by the use of conductive rubber (i.e. conductive pad) Sensing material, and measuring electrode is installed, changed by measured resistivity distribution to deduce the internal stress of sole in walking process.And And use is easy to operate, the pumping signal injected by a pair of adjacent measurement electrodes in conductive pad establishes sensitivity field, in other phases Adjacent measuring electrode is to the pressure difference in upper measuring electrode；Next adjacent electrode pair is switched to afterwards and injects pumping signal, with phase Same mode measures the pressure difference on remaining adjacent electrode；So repeat, until returning to initial excitation state.
3rd, using effect is good and practical value is high, and sole in human walking procedure is deduced by measured resistivity distribution Internal stress changes, thus the internal stress change of sole in walking process can be monitored using the present invention, and can reflect sole difference The specific stressing conditions at position, so as to obtain sole stressing conditions and real time imagery show, can to it is bad walk appearance carry out early warning, it is strong Positive gait.Compared with traditional sole stress monitoring, the change of sole internal stress in human walking procedure can be monitored, show by The position of power, possibility is provided with correction to walk the monitoring of appearance.The present invention is using ERT method come in sole Stress measures, and overcomes the shortcomings that can not being measured using strain gauge transducer to sole stress distribution, additionally by Measurement obtains the specific distribution of force situation at each position of sole, can carry out identity discriminating to different human body, be criminal detection Provide new means.
In summary, the present invention between sole and shoe-pad by laying conductive pad of the resistivity with stress variation, and adopts The N number of measuring electrode for being laid on conductive pad with the outer edge line along conductive pad and being contacted with conductive pad realizes that stress distribution is surveyed Amount, can it is easy, accurate and it is real-time measurement sole true stress distribution.
Below by drawings and examples, technical scheme is described in further detail.
Brief description of the drawings
Fig. 1 is the layout position illustration of conductive pad of the present invention and sole and shoe-pad.
Fig. 2 is layout position illustration of the N number of measuring electrode of the present invention on conductive pad.
Fig. 3 is the layout position illustration of wireless launcher, stress measurement device and power module on sole of the present invention.
Fig. 4 is the schematic block circuit diagram of stress measurement device of the present invention.
Fig. 5 is that method flow block diagram when sole stress dynamic measures is carried out using the present invention.
Description of reference numerals:
1-conductive pad；2-measuring electrode；3-stress measurement device；
3-1-driving source；3-2-controller；3-3-differential pressure measuring cell；
3-4-signal amplification circuit；The multicircuit switches of 3-5-first；
The multicircuit switches of 3-6-second；4-wireless launcher；5-sole；
6-shoe-pad；7-power module.
Embodiment
As shown in Figure 1, Figure 2, a kind of sole stress dynamic measurement device shown in Fig. 3 and Fig. 4, including pad are mounted in sole 5 and footwear Conductive pad 1, N number of measuring electrode 2 being laid on conductive pad 1 between pad 6 and be connected with N number of measuring electrode 2 should Force measuring device 3, the shape of the conductive pad 1 are identical with the shape of shoe-pad 6；N number of measuring electrode 2 is outer along conductive pad 1 Edge line is laid, the spacing all same between the two neighboring measuring electrode 2；Wherein, N is positive integer and N >=6；Often One end of the individual measuring electrode 2 is connected with stress measurement device 3 and its other end is in close contact with conductive pad 1.
Wherein, the spacing between the two neighboring measuring electrode 2 is referred between the two neighboring measuring electrode 2 Air line distance.
In the present embodiment, N=16.16 measuring electrodes 2 are installed altogether on the conductive pad 1.
During actual use, N value size can be adjusted accordingly according to specific needs.
The pad of conductive pad 1 is loaded between sole 5 and shoe-pad 6, the stress-strain state of the conductive pad 1 and sole to be measured It is identical, and the resistivity of conductive pad 1 carries out respective change with stress variation, thus measurements resistivity can directly, accurately Reflect stress distribution.
The present invention is realized on sole to be measured by measuring the resistivity value in conductive pad 1 between two neighboring measuring electrode 2 The stress measurement in region between two neighboring measuring electrode 2, and using the N number of measuring electrode 2 being laid on conductive pad 1 The stress measurement in each region on sole to be measured is realized, so as to obtain the stress distribution measurement result of sole to be measured.Wherein, adjacent two Individual measuring electrode 2 refers to two adjacent measuring electrodes 2 of position.
In the present embodiment, the size of the conductive pad 1 is same as or slightly smaller than shoe-pad 6 with the size of shoe-pad 6.
In the present embodiment, the conductive pad 1 is conductive rubber pad.
The conductive rubber of the conductive pad 1 using resistivity with stress variation, due to conductive rubber have power sensitiveness and Its resistivity changes with the change of stress, thus can meet stress measurement demand.
As shown in figure 1, by between sole 5 and shoe-pad 6 pad fill a layer resistivity with stress variation conductive rubber (i.e. Conductive pad 1), because conductive rubber has power sensitivity characteristic, its resistivity changes with the change of stress.The conductive pad 1 Profile it is identical with the profile of shoe-pad 5, and on conductive pad 1 install measuring electrode 2, measuring electrode 2 is around the side of conductive pad 1 Along being evenly arranged, 16 measuring electrodes 2 are arranged altogether.
In the present embodiment, the measuring electrode 2 is located at the lower section of conductive pad 1.
In the present embodiment, the structure snd size all same of N number of measuring electrode 2.
Also, the measuring electrode 2 is disc-shaped electrode.
During actual processing, the measuring electrode 2 is fixed on conductive pad 1 by fastener, and ensures measuring electrode 2 with leading Electrical pad 1 is abundant, is in close contact.
In the present embodiment, the fastener is rivet.The measuring electrode 2 is by being riveted on conductive pad 1.
In the present embodiment, a diameter of Φ 5mm of the measuring electrode 2.During actual use, according to specific needs, to measurement The diameter and thickness of electrode 2 adjust accordingly.
The electrode that the measuring electrode 2 is selected for conventional measurement potential difference.
In the present embodiment, the measuring electrode 2 is copper sheet.
Movement occurs in view of shoe-pad in walking process 6, conductive pad 1 is fixed on sole 5.
In the present embodiment, conductive pad 1 is laid between shoe-pad 6 and sole 5, and conductive pad 1 is bonded on sole 5 and subtracted Measurement error that is small and preventing moving belt.
In the present embodiment, the stress measurement device 3 is laid on sole 5.
Meanwhile the wireless transmission that sole stress dynamic measurement device of the present invention also includes being connected with stress measurement device 3 fills Put 4.
In the present embodiment, the wireless launcher 4 is laid on sole 5.
In actual use, can according to specific needs, the laying to stress measurement device 3 and wireless launcher 4 Position adjusts accordingly.
The power module 7 powered for stress measurement device 3 and wireless launcher 4 is laid on sole 5, and the stress is surveyed Amount device 3 and wireless launcher 4 are connected with power module 7.
It is easy to lay, as shown in figure 3, opening up supply force measuring device 3, wireless launcher 4 and electricity on the top of sole 5 The cavity that source module 7 is installed.
In the present embodiment, the wireless launcher 4 is wireless transceiver.
The stress measurement device 3 carries out two-way communication by the wireless transceiver and upper monitoring device.
In the present embodiment, each it is attached between the measuring electrode 2 and stress measurement device 3 by wire.
The upper end of the measuring electrode 2 is the good conductive layer of electric conductivity, to be contacted with conductive pad 1, the measurement electricity The lower end of pole 2 is connected by wire with stress measurement device 3.
In the present embodiment, the stress measurement device 3 includes driving source 3-1, controller 3-2 and differential pressure measuring cell 3-3, The measuring electrode 2 of arbitrary neighborhood two is connected with driving source 3-1 and forms an excitation electricity in N number of measuring electrode 2 Road, N number of measuring electrode 2 form N number of exciting circuit with driving source 3-1, and N number of exciting circuit is by controller 3- 2 carry out break-make control, and N number of exciting circuit is connected with controller 3-2；
The measuring electrode 2 of arbitrary neighborhood two is connected simultaneously with differential pressure measuring cell 3-3 in N number of measuring electrode 2 Form a differential pressure measurement circuit, N number of measuring electrode 2 and the N number of differential pressure measurement electricity of differential pressure measuring cell 3-3 compositions Road, N number of differential pressure measurement circuit carry out break-make control by controller 3-2, and N number of differential pressure measurement circuit is and controller 3-2 connections；The differential pressure measuring cell 3-3 is that the voltage difference between connected two measuring electrodes 2 is carried out The measuring unit of measurement.
Meanwhile the stress measurement device 3 also signal amplification circuit 3-4 including being connected with differential pressure measuring cell 3-3；
The controller 3-2 carries out break-make control by the first multicircuit switch 3-5 to N number of exciting circuit, N number of The exciting circuit is connected with the first multicircuit switch 3-5；
The controller 3-2 carries out break-make control by the second multicircuit switch 3-6 to N number of differential pressure measurement circuit System, N number of differential pressure measurement circuit are connected with the second multicircuit switch 3-6；
The first multicircuit switch 3-5 and the second multicircuit switch 3-6 is controlled and two by controller 3-2 Person is connected with controller 3-2.
In the present embodiment, the driving source 3-1 and signal amplification circuit 3-4 are connected with controller 3-2.
In the present embodiment, the controller 3-2 is single-chip microcomputer.
During actual use, the controller 3-2 can also use other types of control chip, such as ARM chips.
In the present embodiment, the driving source 3-1 is voltage source.
A kind of sole stress dynamic measurement method as shown in Figure 5, using the sole stress dynamic measurement device and is pressed According to time interval T set in advanceSurveyThe stress distribution of sole to be measured in walking process is measured, and obtains each measurement moment The stress distribution measurement result of sole to be measured；The stress distribution measuring method all same of sole to be measured described in each measurement moment；
When being measured to any stress distribution for measuring moment sole to be measured, comprise the following steps：
Step 1: data acquisition：Break-make control is carried out by controller 3-2 respectively to N number of exciting circuit, by elder generation extremely The data acquisition under N kind difference excitation states is completed afterwards；There is one in N number of exciting circuit under every kind of excitation state The exciting circuit is in an ON state and remaining N-1 exciting circuits are in off-state；
Data acquisition all same under N kind excitation states；Data acquisition under any excitation state is as follows：
Step 101, the control of exciting circuit break-make：Break-make control is carried out by controller 3-2 respectively to N number of exciting circuit System, one under this kind of excitation state in an ON state exciting circuit is connected, and make to be under this kind of excitation state Remaining N-1 exciting circuits of off-state disconnect；
In this step, the exciting circuit in an ON state is current excitations circuit, in the current excitations circuit Two measuring electrodes 2 be exciting electrode；
The differential pressure measurement circuit comprising the exciting electrode disconnects pressure difference to be current in N number of differential pressure measurement circuit Measuring circuit, the current quantity for disconnecting differential pressure measurement circuit is 3；In N number of measuring electrode 23 it is described current disconnected It is current connection differential pressure measurement circuit to open the N-3 outside the differential pressure measurement circuit differential pressure measurement circuits；
Step 102, the control of differential pressure measurement connecting and disconnecting of the circuit：N number of differential pressure measurement circuit is entered respectively by controller 3-2 Row break-make controls, and 3 current differential pressure measurement circuits that disconnect in step 101 is in off-state, and make described in N-3 Current differential pressure measurement circuit of connecting is in on-state；
Step 103, differential pressure measurement：Using differential pressure measuring cell 3-3 current connection pressure differences described to N-3 in step 102 Voltage difference between two measuring electrodes 2 of measuring circuit measures respectively, obtains N-3 voltage difference measurement knot Fruit, and by the N-3 voltage difference measurement result synchronous driving obtained to controller 3-2；The N-3 voltage difference obtained Measurement result is the data acquisition results under this kind of excitation state；
Step 104, multiplicating step 101 to step 103, complete the data acquisition under N kind difference excitation states, And obtain the data acquisition results under N kind excitation states；Data acquisition results under N kind excitation states include N × (N-3) individual electricity Pressure difference measurement result；
Step 2: the processing based on ERT：Using controller 3-2 or the host computer to be communicated with controller 3-2 And ERT module is called, the individual voltage difference measurement results of N × (N-3) obtained in step 1 are handled, obtained The ERT result of the measurement moment sole to be measured is obtained, the ERT result obtained is to treat at the measurement moment Survey the stress distribution measurement result of sole；
Step 3: return to step one, stress distribution measurement is carried out to next measurement moment sole to be measured.
In the present embodiment, described TSurvey=1min-15min.
, can according to specific needs, to T during actual useSurveyValue size adjust accordingly.
In the present embodiment, N × (N-3) individual voltage difference is voltage in step 1.
In the present embodiment, the differential pressure measuring cell 3-3 is voltage measurement unit, between two measuring electrodes 2 Voltage difference refers to the voltage between two measuring electrodes 2, also referred to as potential difference.Each voltage difference measurement knot Fruit is a magnitude of voltage.
When being handled in step 2 the individual voltage difference measurement results of N × (N-3), according to the ERT of routine Method is handled.
Also, when handling the individual voltage difference measurement results of N × (N-3), first the magnitude of voltage measured is converted into pair The resistivity value answered, Inversion Calculation is then carried out, obtain the resistivity tomography result of conductive pad 1.It is actual to carry out inverting meter During calculation, calculated using Landweber algorithms, the resistivity for obtaining conductive pad 1 is scattered in picture, and then obtains sole to be measured Stress distribution measurement result.
When being handled in step 2 the individual voltage difference measurement results of N × (N-3), Beijing can refer to：Science Press In written by the Wang Huaxiang that 03 month 2013 publishes《Electricity tomography》One book, described in page 54 to page 108 of chapter 4 Method is handled.
In the present embodiment, the first multicircuit switch 3-5 is controlled by controller 3-2 in step 101, realization pair N number of differential pressure measurement circuit carries out break-make control respectively.
The second multicircuit switch 3-6 is controlled by controller 3-2 in step 102, realized to N number of pressure difference Measuring circuit carries out break-make control respectively.
During physical cabling, the driving source 3-1 by the first multicircuit switch 3-5 and first wire respectively with N The individual measuring electrode 2 connects, and the differential pressure measuring cell 3-3 passes through the second multicircuit switch 3-6 and second wire It is connected respectively with N number of measuring electrode 2.
As shown in the above, the pumping signal sent driving source 3-1 by the first multicircuit switch 3-5 gating The measuring electrode 2 of arbitrary neighborhood two is transported to, connects an exciting circuit；Pass through the second multicircuit switch 3-6 again Gating, and N-3 current two measurement electricity for connecting differential pressure measurement circuits are completed using differential pressure measuring cell 3-3 The measurement of voltage difference between pole 2, complete the data acquisition under a kind of excitation state；Opened again by the first multipath conversion The gating for closing 3-5 connects next exciting circuit, so constantly repeats, completes the data acquisition under N kind excitation states Journey.
After the data acquisition results under N kind excitation states are obtained in the present embodiment, in step 104, the N to being obtained also is needed Data acquisition results under kind excitation state synchronize storage.
When the data processing based on ERT is carried out in the present embodiment, in step 2, using the host computer and ERT module is called, the individual voltage difference measurement results of N × (N-3) obtained in step 1 are handled, it is actual Operation is very easy.
The host computer is smart mobile phone, notebook etc..
Communicated between the host computer and controller 3-2 by wireless launcher 4, the controller 3-2 and electricity Source module 7 connects.
During actual use, can by two sole stress dynamic measurement devices to be tested personnel two soles Stress distribution enter Mobile state measurement, and the controller 3-2 of two sole stress dynamic measurement devices with it is described upper Supervising device carries out two-way communication.
When tested personnel being carried out with sole stress dynamic measuring, by the upper monitoring device to two soles The controller 3-2 of stress dynamic measurement device synchronously sends stress distribution measurement instruction；Each sole stress dynamic measures After device receives transmitted stress distribution measurement instruction, surveyed according to step 1 to the method described in step 3 Amount；Also, at the end of measuring, the controller by the upper monitoring device to two sole stress dynamic measurement devices 3-2 synchronizations send stress distribution measurement command for stopping, and each sole stress dynamic measurement device receives transmitted answer Stop carrying out stress distribution measurement after power distribution measuring command for stopping, practical operation is very easy.
It is described above, only it is presently preferred embodiments of the present invention, not the present invention is imposed any restrictions, it is every according to the present invention Any simple modification, change and the equivalent structure change that technical spirit is made to above example, still fall within skill of the present invention In the protection domain of art scheme.

Claims (10)

  1. A kind of 1. sole stress dynamic measurement device, it is characterised in that：Leading between sole (5) and shoe-pad (6) is mounted in including pad Electrical pad (1), N number of measuring electrode (2) being laid on conductive pad (1) and the stress survey being connected with N number of measuring electrode (2) Device (3) is measured, the shape of the conductive pad (1) is identical with the shape of shoe-pad (6)；N number of measuring electrode (2) is along conductive pad (1) outer edge line is laid, the spacing all same between the two neighboring measuring electrode (2)；Wherein, N is positive integer And N >=6；One end of each measuring electrode (2) be connected with stress measurement device (3) and its other end and conductive pad (1) it is in close contact.
  2. 2. according to a kind of sole stress dynamic measurement device described in claim 1, it is characterised in that：The conductive pad (1) is Conductive rubber pad.
  3. 3. according to a kind of sole stress dynamic measurement device described in claim 1 or 2, it is characterised in that：The stress measurement Device (3) is laid on sole (5).
  4. 4. according to a kind of sole stress dynamic measurement device described in claim 1 or 2, it is characterised in that：Also include and stress The wireless launcher (4) of measurement apparatus (3) connection.
  5. 5. according to a kind of sole stress dynamic measurement device described in claim 4, it is characterised in that：The wireless launcher (4) it is laid on sole (5).
  6. 6. according to a kind of sole stress dynamic measurement device described in claim 1 or 2, it is characterised in that：N number of measurement electricity The structure snd size all same of pole (2)；The measuring electrode (2) is disc-shaped electrode, and the measuring electrode (2) passes through fastener It is fixed on conductive pad (1).
  7. 7. according to a kind of sole stress dynamic measurement device described in claim 1 or 2, it is characterised in that：Each measurement It is attached between electrode (2) and stress measurement device (3) by wire.
  8. 8. according to a kind of sole stress dynamic measurement device described in claim 1 or 2, it is characterised in that：The stress measurement Device (3) includes driving source (3-1), controller (3-2) and differential pressure measuring cell (3-3), appoints in N number of measuring electrode (2) The two neighboring measuring electrode (2) of anticipating is connected with driving source (3-1) and forms an exciting circuit, N number of measurement electricity Pole (2) forms N number of exciting circuit with driving source (3-1), and N number of exciting circuit carries out break-make by controller (3-2) Control, N number of exciting circuit are connected with controller (3-2)；
    The measuring electrode (2) of arbitrary neighborhood two is connected with differential pressure measuring cell (3-3) in N number of measuring electrode (2) And a differential pressure measurement circuit is formed, N number of measuring electrode (2) is surveyed with the N number of pressure difference of differential pressure measuring cell (3-3) composition Measure circuit, N number of differential pressure measurement circuit by controller (3-2) carry out break-make control, N number of differential pressure measurement circuit with Controller (3-2) connects；The differential pressure measuring cell (3-3) is between connected two measuring electrodes (2) The measuring unit that voltage difference measures.
  9. 9. according to a kind of sole stress dynamic measurement device described in claim 8, it is characterised in that：The stress measurement device (3) signal amplification circuit (3-4) being connected with differential pressure measuring cell (3-3) is also included；
    The controller (3-2) carries out break-make control by the first multicircuit switch (3-5) to N number of exciting circuit, N number of The exciting circuit is connected with the first multicircuit switch (3-5)；
    The controller (3-2) carries out break-make control by the second multicircuit switch (3-6) to N number of differential pressure measurement circuit System, N number of differential pressure measurement circuit are connected with the second multicircuit switch (3-6)；
    First multicircuit switch (3-5) and the second multicircuit switch (3-6) be controlled by controller (3-2) and The two is connected with controller (3-2).
  10. 10. one kind enters Mobile state measurement to sole stress to be measured using sole stress dynamic measurement device as claimed in claim 8 Method, it is characterised in that：Using the sole stress dynamic measurement device and according to time interval T set in advanceSurveyTo row The stress distribution of sole to be measured measures during walking, and obtains the stress distribution measurement knot of each measurement moment sole to be measured Fruit；The stress distribution measuring method all same of sole to be measured described in each measurement moment；
    When being measured to any stress distribution for measuring moment sole to be measured, comprise the following steps：
    Step 1: data acquisition：Break-make control is carried out by controller (3-2) respectively to N number of exciting circuit, by elder generation to rear Complete the data acquisition under N kind difference excitation states；There is an institute under every kind of excitation state in N number of exciting circuit State exciting circuit in an ON state and remaining N-1 exciting circuits are in off-state；
    Data acquisition all same under N kind excitation states；Data acquisition under any excitation state is as follows：
    Step 101, the control of exciting circuit break-make：Break-make control is carried out by controller (3-2) respectively to N number of exciting circuit System, one under this kind of excitation state in an ON state exciting circuit is connected, and make to be under this kind of excitation state Remaining N-1 exciting circuits of off-state disconnect；
    In this step, the exciting circuit in an ON state is current excitations circuit, two in the current excitations circuit The individual measuring electrode (2) is exciting electrode；
    The differential pressure measurement circuit comprising the exciting electrode disconnects differential pressure measurement to be current in N number of differential pressure measurement circuit Circuit, the current quantity for disconnecting differential pressure measurement circuit is 3；3 current disconnections in N number of measuring electrode (2) The N-3 differential pressure measurement circuits outside differential pressure measurement circuit are current connection differential pressure measurement circuit；
    Step 102, the control of differential pressure measurement connecting and disconnecting of the circuit：N number of differential pressure measurement circuit is carried out respectively by controller (3-2) Break-make controls, and 3 current differential pressure measurement circuits that disconnect in step 101 is in off-state, and make to work as described in N-3 Preceding connection differential pressure measurement circuit is in on-state；
    Step 103, differential pressure measurement：Surveyed using differential pressure measuring cell (3-3) current pressure difference of connecting described to N-3 in step 102 The voltage difference measured between two measuring electrodes (2) of circuit measures respectively, obtains N-3 voltage difference measurement knot Fruit, and by the N-3 voltage difference measurement result synchronous driving obtained to controller (3-2)；The N-3 voltage difference obtained It is the data acquisition results under this kind of excitation state to be worth measurement result；
    Step 104, step 101 is repeated several times to step 103, completes the data acquisition under N kind difference excitation states, and obtain Obtain the data acquisition results under N kind excitation states；Data acquisition results under N kind excitation states include N × (N-3) individual voltage difference It is worth measurement result；
    Step 2: the processing based on ERT：Using controller (3-2) or the host computer to be communicated with controller (3-2) And ERT module is called, the individual voltage difference measurement results of N × (N-3) obtained in step 1 are handled, obtained The ERT result of the measurement moment sole to be measured is obtained, the ERT result obtained is to treat at the measurement moment Survey the stress distribution measurement result of sole；
    Step 3: return to step one, stress distribution measurement is carried out to next measurement moment sole to be measured.
CN201711025618.3A 2017-10-27 2017-10-27 A kind of sole stress dynamic measurement device and method Pending CN107822641A (en)

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Application publication date: 20180323