CN101912271A - System and method for displaying plantar pressure in real time - Google Patents
System and method for displaying plantar pressure in real time Download PDFInfo
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- CN101912271A CN101912271A CN 201010230489 CN201010230489A CN101912271A CN 101912271 A CN101912271 A CN 101912271A CN 201010230489 CN201010230489 CN 201010230489 CN 201010230489 A CN201010230489 A CN 201010230489A CN 101912271 A CN101912271 A CN 101912271A
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Abstract
The invention relates to a system for displaying a plantar pressure in real time. The system comprises a plantar pressure data acquisition device, a plantar pressure data processing device and a display device, wherein the plantar pressure data acquisition device is used for contacting a planta and acquiring plantar pressure data at certain time intervals to form a data frame of the plantar pressure; the plantar pressure data processing device is connected with the plantar pressure data acquisition device, reads the date frame instantaneously at a set speed and processes the data frame to obtain pressure distribution image data; and the display device is connected with the plantar pressure data processing device, acquires the pressure distribution image data and displays the distribution state of the plantar pressure according to the pressure distribution image data. Moreover, the invention also relates to a method for displaying the plantar pressure in real time. In the system and the method, the data frame of the plantar pressure is read instantaneously at the set speed and the data frame is processed to obtain the pressure distribution image data; and the distribution state of the plantar pressure can be displayed in real time according to the distribution image data.
Description
[technical field]
The present invention relates to plantar pressure and distribute, especially relate to a kind of plantar pressure real-time display system and method.
[background technology]
Traditional plantar pressure distribution tests device all is that the plantar pressure data of gathering in a period of time are carried out centralized stores, and post analysis is carried out in disposable then extraction.Above-mentioned plantar pressure distribution tests device lacks the mechanism that shows the plantar pressure distribution situation in real time visually.
[summary of the invention]
In view of above-mentioned, be necessary to provide a kind of plantar pressure real-time display system, the distribution situation of plantar pressure can be shown in patterned mode in real time.
A kind of plantar pressure real-time display system comprises: the plantar pressure data acquisition facility is used for contacting with the vola and gathering at a certain time interval the Frame that the plantar pressure data form plantar pressure; Plantar pressure data processing device is connected with the plantar pressure data acquisition facility, reads described Frame immediately with the speed of setting, and described Frame handled obtains pressure distribution image data; Display device is connected with plantar pressure data processing device, obtains described pressure distribution image data and shows the distribution situation of plantar pressure according to described pressure distribution image data.
Preferably, described plantar pressure data acquisition facility comprises the array of pressure sensors that matrix is arranged that is that connects successively, a plurality of signalling channel selector switches, signal amplifier, analog-digital converter and digital signal processor, described signalling channel selector switch is opened the pressure signal of gathering in the corresponding signalling channel by certain time interval in turn, described signal amplifier passes to analog-digital converter after described pressure signal is amplified, pass to digital signal processor after analog-digital converter converts digital signal to, the described digital signal processor interior plantar pressure data of each interval the most at last forms Frame.
Preferably, described array of pressure sensors quantity is two, each array of pressure sensors comprises 128 first sheet pick offs of closely arranging, form the matrix of 8 row * 16 row, the data matrix of described Frame 8 row * 16 row corresponding when being the interior collection of each certain time interval pressure data with described array of pressure sensors.
Preferably, adopt at least a in wired connection and the wireless connections between described plantar pressure data acquisition facility and the plantar pressure data processing device, wherein wired connection comprises the connection of adopting USB interface, and wireless connections comprise the connection of adopting RF-wise.
Preferably, described plantar pressure data processing device is carried out interpolation processing to each Frame, generates distributed in three dimensions image data.
A kind of plantar pressure real-time display method is provided in addition.
A kind of plantar pressure real-time display method comprises the steps: to gather at a certain time interval the Frame that the plantar pressure data form plantar pressure; Immediately read described Frame with the speed of setting, and described Frame handled obtain pressure distribution image data; The distribution situation that shows plantar pressure according to described pressure distribution image data.
Preferably, described interval was less than 1/30 second.
Preferably, described Frame is the data matrix of 8 row * 16 row.
Preferably, the described step that Frame is handled specifically comprises: described data matrix is divided into several subregions, and described subregion is corresponding with several physiological location that satisfy plantar dissection in vola; Calculate the surge pressure and the contact area of each subregion; Obtain pressure distribution image data according to described surge pressure and contact area.
Preferably, describedly Frame is handled the step that obtains pressure distribution image data be specially: each Frame is carried out interpolation processing, generate distributed in three dimensions image data.
Said system and method read the Frame of plantar pressure immediately with the speed of setting, and handle and obtain pressure distribution image data, can show the distribution situation of plantar pressure in real time according to these distributed image data.
[description of drawings]
Fig. 1 is the plantar pressure real-time display system of an embodiment;
Fig. 2 is a plantar pressure data acquisition facility structural representation;
Fig. 3 is the array of pressure sensors sketch map;
Fig. 4 is the Frame sketch map of plantar pressure;
Fig. 5 is the plantar pressure real-time display method flow chart of another embodiment;
Fig. 6 is for to handle the flow chart that obtains pressure distribution image data to Frame.
[specific embodiment]
Further specify below in conjunction with accompanying drawing.
As shown in Figure 1, be the plantar pressure real-time display system of an embodiment.This system comprises plantar pressure data acquisition facility 10, plantar pressure data processing device 20 and the display device 30 that connects successively.Wherein plantar pressure data acquisition facility 10 is used for contacting and gathering at a certain time interval with the vola Frame of plantar pressure data formation plantar pressure, plantar pressure data processing device 20 reads described Frame immediately with the speed of setting, and described Frame handled obtain pressure distribution image data, display device 30 is obtained described pressure distribution image data and is shown the distribution situation of plantar pressure according to described pressure distribution image data.
As shown in Figure 2, plantar pressure data acquisition facility 10 comprises array of pressure sensors 102, a plurality of signalling channel selector switch 104, signal amplifier 106, analog-digital converter 108 and the digital signal processor 110 that matrix is arranged that be that connects successively.Array of pressure sensors 102 comprises a plurality of first sheet pick offs of closely arranging, and is matrix and arranges and the vola sizableness of being grown up, and can trample for the vola, obtains successive pressure signal after bearing pressure; Signalling channel selector switch 104 can optionally be exported the pressure signal of different first sheet sensor acquisition in turn by certain time interval, all first sheet pick offs are finished a pressure signal collection at least in this interval; Pressure signal passes to analog-digital converter 108 after amplifying through signal amplifier 106, converts digital signal to through analog-digital converter 108 then, by digital signal processor 110 the plantar pressure data in each interval is formed Frame at last.In other embodiments, also can comprise the memory element that Frame is kept in.Plantar pressure data acquisition facility 10 can carry out some changes on the basis of said structure, as removes signalling channel selector switch etc., only needs to satisfy the Frame that can obtain plantar pressure and gets final product.
As shown in Figure 3, in a preferred embodiment, array of pressure sensors 102 comprises 128 first sheet pick offs of closely arranging, and arranges with the matrix form of 8 row * 16 row.Each first sheet pick off is a rectangle, is of a size of 1.75cm * 1.4cm.Therefore the minimum dimension of this array of pressure sensors 102 (only working as all first sheet pick offs closely arranges) is long 28cm (1.75cm * 16), and wide 11.2cm (1.4cm * 8) is suitable with adult vola size.In the test, the plantar pressure during for the acquisition normal stand can be established two array of pressure sensors 102, lays respectively at tester's two underfooting.In other embodiment, the arrangement mode of first sheet pick off and size can be carried out proper transformation with reference to above-mentioned arrangement.
Signalling channel selector switch 104 optional majority road signalling channels, the array of pressure sensors of arranging with the matrix form of 8 row * 16 row is an example, can per 8 pressure signals that are listed as * 4 row collections be one the tunnel, gathers in turn, then need 4 tunnel signalling channels altogether, promptly need 4 signalling channel on-off control.In other embodiments, also can adopt other shunt mode, be listed as signal of * 2 row or the like as 8 the tunnel 8.In certain time interval, as 1/50 second, 4 tunnel signalling channels were finished the collection of at least pressure signal in turn.
Plantar pressure data acquisition facility 10 and plantar pressure data processing device 20 adopts at least a in wired connections and the wireless connections, and wherein wired connection comprises the connection of adopting USB interface, and wireless connections comprise the connection of adopting RF-wise.The Frame that is obtained by plantar pressure data acquisition facility 10 is transferred to plantar pressure data processing device 20 by above-mentioned usb mode and RF-wise etc.The speed read data frame of plantar pressure data processing device 20 to set, as per second 30 frames to per second 50 frames.Each Frame is further processed, and obtains the view data of plantar pressure distribution situation.This view data can be corresponding to plantar pressure highly to distinguish the 3 d image data of pressure size, also can be the two-dimensional image data with color differentiating pressure size, and contact area also is included in this view data simultaneously.
View data is shown device 30 and obtains and resolve and can show this 3-D view or two dimensional image, because Frame is with speed generation faster and is converted into view data, and then show, so the plantar pressure display system of present embodiment can show plantar pressure distribution situation (comprising pressure span, size etc.) with intuitive image in real time.
Below describe the display packing of plantar pressure in detail with another embodiment.As shown in Figure 5, this method comprises the steps:
S10: gather the Frame that the plantar pressure data form plantar pressure at a certain time interval.Array of pressure sensors 102 contacts with tester's vola, each and the contacted first sheet pick off in vola bear pressure and produce successive pressure signal, in the certain time interval, obtain the pressure signal of all first sheet pick off outputs, can be used as the instantaneous pressure signal in the initial moment of this interval, with the value of the instantaneous pressure signal of each first sheet pick off of obtaining a data item, can obtain the Frame in a certain moment corresponding with array of pressure sensors 102 as the Frame in this interval.Because the tester occurs center of gravity inevitably and rocks (as lean forward, double swerve etc.) and cause plantar pressure to distribute occurring changing in test, therefore need in the interval of enough weak points, constantly gather plantar pressure and just can reflect the plantar pressure distribution situation comparatively in real time.In a preferred embodiment, this interval was less than 1/30 second.
As shown in Figure 4, be the sketch map of a Frame.This Frame is the matrix with 128 data item, the corresponding first sheet pick off of each data item.
S20: read described Frame with the speed of setting, and described Frame handled obtain pressure distribution image data.Each Frame can be represented the plantar pressure distribution in a certain moment, therefore successive read and show can obtain real-time pressure distribution situation.Wherein described Frame is handled the step that obtains pressure distribution image data and specifically comprises (as shown in Figure 6):
S201: above-mentioned data matrix is divided into several subregions, and described subregion is corresponding with several physiological location that satisfy plantar dissection in vola.Above-mentioned physiological location mainly refers to the skeleton dissection structure of foot, and human foot bones structure is made of 26 skeletons, is divided into attached bone, metatarsal and phalanx.Vola and contacting of ground mainly are exactly these skeletons by the contacting of muscular tissue and ground, and each subregion correspondence the contact area of the skeleton of foot by muscular tissue and ground.The division of subregion is carried out according to template, because the adult is different with child vola size, need adopt different templates for distinguishing different physiological location.With Frame shown in Figure 4 is example, adopts adult vola template, and then the data item of the 2nd row the 3rd row, the 3rd row the 1st row and the 3rd row the 2nd row is the data of thumb subregion.
S202: surge pressure and the contact area of calculating each subregion.According to vola template and pressure data, can obtain the surge pressure and the contact area of each subregion.Surge pressure i.e. the interior maximum pressure of this subregion, and contact area i.e. the interior gross area that produces all first sheet pick offs of pressure signal of this subregion.Be example with above-mentioned Frame shown in Figure 4 still, the surge pressure of thumb subregion is 285.957N, and contact area is 1.75cm * 1.4cm * 3=7.35cm
2
S203: obtain pressure distribution image data according to described surge pressure and contact area.Because the pressure data that is obtained may have bigger jump between adjacent first sheet pick off, can not truly reflect the pressure of some contact position, therefore need carry out interpolation processing, obtain pressure distribution image data image level and smooth to generate, that link up.This image can be highly to distinguish the 3 d image data of pressure size, also can be the two-dimensional image data with color differentiating pressure size.
S30: the distribution situation that shows plantar pressure according to described pressure distribution image data.Generate corresponding image according to view data.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a plantar pressure real-time display system is characterized in that, comprising:
The plantar pressure data acquisition facility is used for contacting with the vola and gathering at a certain time interval the Frame that the plantar pressure data form plantar pressure;
Plantar pressure data processing device is connected with the plantar pressure data acquisition facility, reads described Frame with the speed of setting, and described Frame handled obtains pressure distribution image data;
Display device is connected with plantar pressure data processing device, obtains described pressure distribution image data and shows the distribution situation of plantar pressure according to described pressure distribution image data.
2. plantar pressure real-time display system as claimed in claim 1, it is characterized in that, described plantar pressure data acquisition facility comprises the array of pressure sensors that matrix is arranged that is that connects successively, a plurality of signalling channel selector switches, signal amplifier, analog-digital converter and digital signal processor, described signalling channel selector switch is opened the pressure signal of gathering in the corresponding signalling channel by certain time interval in turn, described signal amplifier passes to analog-digital converter after described pressure signal is amplified, pass to digital signal processor after analog-digital converter converts digital signal to, the described digital signal processor interior plantar pressure data of each interval the most at last forms Frame.
3. plantar pressure real-time display system as claimed in claim 2, it is characterized in that, described array of pressure sensors quantity is two, each array of pressure sensors comprises 128 first sheet pick offs of closely arranging, form the matrix of 8 row * 16 row, the data matrix of described Frame 8 row * 16 row corresponding when being the interior collection of each certain time interval pressure data with described array of pressure sensors.
4. plantar pressure real-time display system as claimed in claim 1, it is characterized in that, adopt at least a in wired connection and the wireless connections between described plantar pressure data acquisition facility and the plantar pressure data processing device, wherein wired connection comprises the connection of adopting USB interface, and wireless connections comprise the connection of adopting RF-wise.
5. plantar pressure real-time display system as claimed in claim 1 is characterized in that described plantar pressure data processing device is carried out interpolation processing to each Frame, generates distributed in three dimensions image data.
6. a plantar pressure real-time display method comprises the steps:
Gather the Frame that the plantar pressure data form plantar pressure at a certain time interval;
Read described Frame with the speed of setting, and described Frame handled obtain pressure distribution image data;
The distribution situation that shows plantar pressure according to described pressure distribution image data.
7. plantar pressure real-time display method as claimed in claim 6 is characterized in that described interval was less than 1/30 second.
8. plantar pressure real-time display method as claimed in claim 6 is characterized in that, described Frame is the data matrix of 8 row * 16 row.
9. plantar pressure real-time display method as claimed in claim 8 is characterized in that, the described step that Frame is handled specifically comprises:
Described data matrix is divided into several subregions, and described subregion is corresponding with several physiological location that satisfy plantar dissection in vola;
Calculate the surge pressure and the contact area of each subregion;
Obtain pressure distribution image data according to described surge pressure and contact area.
10. plantar pressure real-time display method as claimed in claim 6 is characterized in that, describedly Frame is handled the step that obtains pressure distribution image data is specially: each Frame is carried out interpolation processing, generate distributed in three dimensions image data.
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| CN 201010230489 CN101912271A (en) | 2010-07-19 | 2010-07-19 | System and method for displaying plantar pressure in real time |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102228379A (en) * | 2011-07-07 | 2011-11-02 | 上海帝诺医疗科技有限公司 | Balance detection system |
| CN103462619A (en) * | 2013-09-30 | 2013-12-25 | 厦门大学 | Plantar pressure measuring device and gait mode identification method using same |
| CN106096033A (en) * | 2016-06-27 | 2016-11-09 | 北京大学深圳研究生院 | Plantar pressure information analysis method, Apparatus and system |
| CN107464241A (en) * | 2017-08-16 | 2017-12-12 | 深圳市新元素医疗技术开发有限公司 | A kind of analysis method of plantar pressure |
| CN107694074A (en) * | 2017-11-03 | 2018-02-16 | 杭州乾博科技有限公司 | A kind of method of position when table tennis net device and identification table tennis pass through net |
| CN110292384A (en) * | 2019-06-26 | 2019-10-01 | 浙江大学 | A kind of intelligent foot arch index measurement method based on plantar pressure data distribution |
| CN112529782A (en) * | 2021-02-18 | 2021-03-19 | 棉捷(北京)网络科技有限公司 | Pressure data 3D imaging method and device, terminal equipment and readable storage medium |
| WO2022106978A1 (en) * | 2020-11-19 | 2022-05-27 | Centro Di Fisioterapia Di Cecilia Surace & C. S.A.S. | Posturographic evaluation apparatus and method |
| CN114869270A (en) * | 2022-03-07 | 2022-08-09 | 电子科技大学 | Gait analysis method based on fusion of small animal image and plantar pressure data |
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| CN2540911Y (en) * | 2002-02-07 | 2003-03-26 | 华中科技大学同济医学院附属同济医院 | Plate type sole pressure distribution measurer |
| WO2008036398A2 (en) * | 2006-09-21 | 2008-03-27 | Schering-Plough Healthcare Products, Inc. | Foot measurement apparatus |
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| CN2540911Y (en) * | 2002-02-07 | 2003-03-26 | 华中科技大学同济医学院附属同济医院 | Plate type sole pressure distribution measurer |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102228379A (en) * | 2011-07-07 | 2011-11-02 | 上海帝诺医疗科技有限公司 | Balance detection system |
| CN103462619A (en) * | 2013-09-30 | 2013-12-25 | 厦门大学 | Plantar pressure measuring device and gait mode identification method using same |
| CN106096033A (en) * | 2016-06-27 | 2016-11-09 | 北京大学深圳研究生院 | Plantar pressure information analysis method, Apparatus and system |
| CN107464241A (en) * | 2017-08-16 | 2017-12-12 | 深圳市新元素医疗技术开发有限公司 | A kind of analysis method of plantar pressure |
| CN107694074A (en) * | 2017-11-03 | 2018-02-16 | 杭州乾博科技有限公司 | A kind of method of position when table tennis net device and identification table tennis pass through net |
| CN110292384A (en) * | 2019-06-26 | 2019-10-01 | 浙江大学 | A kind of intelligent foot arch index measurement method based on plantar pressure data distribution |
| WO2022106978A1 (en) * | 2020-11-19 | 2022-05-27 | Centro Di Fisioterapia Di Cecilia Surace & C. S.A.S. | Posturographic evaluation apparatus and method |
| CN112529782A (en) * | 2021-02-18 | 2021-03-19 | 棉捷(北京)网络科技有限公司 | Pressure data 3D imaging method and device, terminal equipment and readable storage medium |
| CN114869270A (en) * | 2022-03-07 | 2022-08-09 | 电子科技大学 | Gait analysis method based on fusion of small animal image and plantar pressure data |
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Application publication date: 20101215 |