Calibrating table of plantar sensor

Abstract

The utility model discloses a calibration table of a plantar sensor, which belongs to the technical field of pressure measurement and comprises a plurality of linear modules and a detection component. The linear module comprises a first linear module, a second linear module and a third linear module, the second linear module is installed at the output end of the first linear module, the third linear module is longitudinally arranged at the output end of the second linear module, and the detection assembly is arranged at the output end of the third linear module; the moving directions of the output ends of the first linear module and the second linear module are vertical; the detection assembly comprises a calibration sensor and a pressing block installed on the lower side of the calibration sensor, and the lower end of the pressing block is provided with a pressing part matched with the foot sole sensor. The horizontal position of the pressing block is adjusted through the first linear module and the second linear module, the longitudinal position is adjusted through the third linear module, pressure is provided for the pressing block and the plantar sensor, and local pressure sensing points / to-be-detected positions of the plantar sensor are detected and calibrated through the plantar sensor and the pressing block.

Description

TECHNICAL FIELD

[0001] The utility model relates to pressure measurement technical field, concretely relates to a calibration platform of plantar sensor. BACKGROUND

[0002] Pressure sensor (Pressure Transducer) is the device or device that can feel pressure signal and can change pressure signal into usable output electric signal according to certain rule.

[0003] Plantar pressure sensor is a kind of sensor for measuring and recording plantar pressure distribution, and is widely used in medical treatment, sports, footwear design, rehabilitation treatment and other fields.

[0004] Because the area of plantar pressure sensor is larger, when calibrating plantar pressure sensor, the method of flat plate simulation is usually used for detection, flat plate needs to be pressed on pressure sensor, and the reading on pressure sensor is read, and the data of all pressure sensing points in flat plate area are read, so that local pressure sensing points can be accurately calibrated. UTILITY MODEL CONTENT

[0005] In view of the above technical problems existing in the prior art, the utility model provides a calibration platform of plantar sensor, which detects and calibrates local pressure sensing points of plantar sensor.

[0006] The utility model discloses a calibration platform of plantar sensor, including a plurality of straight line module and detection component, the straight line module includes first straight line module, second straight line module and third straight line module, second straight line module installs in the output of first straight line module, and third straight line module is longitudinally arranged in the output of second straight line module, and detection component is arranged in the output of third straight line module, the output of first straight line module and second straight line module is perpendicular to the moving direction, the detection component includes calibration sensor and the pressure block of installation in the lower side of calibration sensor, and the lower end of pressure block is provided with the pressing portion that is matched with plantar sensor.

[0007] Preferably, the detection component further comprises at least one first mounting boss, and the first calibration sensor is installed on the lower side of the first mounting boss.

[0008] Preferably, the detection component further comprises a third connecting piece and a third mounting plate,

[0009] The third connecting piece is installed at the output end of the third linear module;

[0010] The third mounting plate is longitudinally installed on the third connecting piece;

[0011] The first mounting boss is installed at the lower end of the third mounting plate.

[0012] Preferably, the utility model also includes the fourth linear module installed on the third connecting piece, and the output end of the fourth linear module is provided with a fourth mounting plate;

[0013] The lower end of the fourth mounting plate is provided with at least one second mounting boss, and the second mounting boss is provided with a detachable second calibration sensor.

[0014] Preferably, the pressing part area of the second pressing block on the lower side of the second calibration sensor is less than the pressing part area of the first pressing block on the lower side of the first calibration sensor;

[0015] The range of the second calibration sensor is less than the range of the first calibration sensor.

[0016] Preferably, the utility model also includes the object carrier arranged on the lower side of the first linear module, and the foot sensor is arranged on the upper side of the object carrier.

[0017] Preferably, the first linear module is provided with a slide rail on one side,

[0018] One end of the second linear module is slidably installed on the slide rail.

[0019] Preferably, the linear module includes a support, a driving mechanism, a lead screw and a nut matched with the lead screw;

[0020] The lead screw is rotatably installed in the support, and the output end of the driving mechanism is connected with the lead screw.

[0021] Preferably, the driving mechanism includes a servo motor or an eccentric handle;

[0022] The output shaft of the driving mechanism is connected with the lead screw through a shaft coupling;

[0023] The outer side of the nut is provided with a sliding block.

[0024] Preferably, the operation method of the calibration platform includes:

[0025] Placing the foot sensor on the object carrier;

[0026] If the range of the first calibration sensor and the pressing part area of the first pressing block on the lower side match the position to be measured;

[0027] The position of the pressing block is adjusted by the first linear module and the second linear module, so that the pressing block corresponds to the to-be-measured position of the foot bottom sensor; the first pressing block is controlled to descend and press on the to-be-measured position by the third linear module; and the foot bottom sensor is calibrated by the detection values of the first calibration sensor and the foot bottom sensor.

[0028] If the range of the second calibration sensor and the area of the pressing part of the lower pressing block match the to-be-measured position;

[0029] The first pressing block is controlled to be higher than the object table by the third linear module; the position of the second pressing block is adjusted by the first linear module and the second linear module, so that the second pressing block corresponds to the to-be-measured position of the foot bottom sensor; the second pressing block is controlled to descend and press on the to-be-measured position by the fourth linear module; and the foot bottom sensor is calibrated by the detection values of the second calibration sensor and the foot bottom sensor.

[0030] Compared with the prior art, the utility model discloses the beneficial effects are: the horizontal position of pressing block is adjusted by the first linear module and the second super module, the longitudinal position is adjusted by the third linear module, and the pressure is provided for pressing block and foot bottom sensor, and the local pressure sensing point / to-be-measured position of foot bottom sensor is detected and calibrated by foot bottom sensor and pressing block. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is the calibration platform structure schematic drawing of the foot bottom sensor of the utility model;

[0032] Figure 2 It is the structure schematic drawing of the calibration assembly;

[0033] Figure 3 It is the structure schematic drawing of the linear module;

[0034] Figure 4 It is the partial sectional view of linear module.

[0035] Marked in the drawing: 1 calibration platform, 11 object table;

[0036] 2 linear module, 21 first linear module, 22 second linear module, 23 third linear module, 24 fourth linear module, 251 eccentric handle, 252 support, 253 lead screw, 254 sliding block, 255 coupling, 256 nut, 26 slide rail;

[0037] 3 detection assembly, 31 third connecting piece, 32 third mounting plate, 33 first calibration sensor, 35 pressing block, 351 connecting part, 352 pressing part, 355 first pressing block, 356 second pressing block, 36 fourth mounting plate, 361 second mounting boss, 37 second calibration sensor;5 foot bottom sensor. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0039] The utility model will be further described in detail in combination with the drawings:

[0040] SUMMARY: The plantar sensor is important component of gait detection device, plantar orthosis, sitting balance detector and plantar sensor, and the plantar sensor with plane or flat plate structure can collect the pressure of each part of the plantar, detect the pressure distribution of the plantar, and obtain the gait of walking in combination with the plantar detection in walking.

[0041] The utility model provides a kind of calibration platform 1 of plantar sensor, as Figures 1-4 , including multiple linear modules 2 and detection assembly 3;The linear module 2 includes first linear module 21, second linear module 22 and third linear module 23;Second linear module 22 is installed in the output end of the first linear module 21, and third linear module 23 is longitudinally arranged in the output end of the second linear module 22, and the detection assembly 3 is arranged in the output end of third linear module 23;The moving direction of the output end of first linear module and second linear module is perpendicular;The detection assembly 3 includes calibration sensor and the pressure block 35 installed in the lower side of calibration sensor, and the lower end of the pressure block 35 is provided with the pressing portion 352 matched with plantar sensor 5.

[0042] The horizontal position of pressure block 35 is adjusted by first linear module 21 and second super module, the longitudinal position is adjusted by third linear module 23, and pressure is provided for pressure block and plantar sensor 5, and the local pressure sensing point / position to be measured of plantar sensor is detected and calibrated by plantar sensor and pressure block.

[0043] As Figure 2 , detection assembly 3 further includes at least one first mounting boss (not shown in the drawing), and first calibration sensor 33 is installed in the lower side of the first mounting boss;The connecting portion 351 of one end of first pressure block 355 is detachably installed in the lower side of the first calibration sensor 33.

[0044] Detection assembly 3 further includes third connecting piece 31 and third mounting plate 32, the third connecting piece 31 is installed in the output end of third linear module 23;The third mounting plate 32 is longitudinally installed on the third connecting piece 31;The first mounting boss is installed in the lower end of the third mounting plate 32.

[0045] Optionally, a fourth linear module 24 is also installed on the third connecting piece 31, and the output end of the fourth linear module is provided with a fourth mounting plate 36; the lower end of the fourth mounting plate 36 is provided with at least one second mounting boss 361; and the second mounting boss 361 is provided with a detachable second calibration sensor 37.

[0046] More specifically, the pressing part area of the second lower side second pressing block 356 of the second calibration sensor 37 is smaller than the pressing part area of the first lower side first pressing block 355 of the first calibration sensor 33; and the range of the second calibration sensor is smaller than the range of the first calibration sensor 33. One of the calibration sensors 37 can be selected for detection according to the detection needs.

[0047] Figure 1 It is also shown that a stage 11 is arranged on the lower side of the first linear module 21, and a foot sensor is arranged on the upper side of the stage 11. One side of the first linear module 21 is provided with a slide rail 26, and one end of the second linear module 22 is slidably installed on the slide rail 26.

[0048] As Figure 3 One specific linear module 2 includes a bracket 252, a driving mechanism, a lead screw 253 and a nut 256 matched with the lead screw 253; the lead screw 253 is rotatably installed in the bracket 252, and the output end of the driving mechanism is connected with the lead screw 253. It should be pointed out that the lengths of the multiple linear modules of the utility model and the structure of the bracket 262 can be designed differently according to actual needs.

[0049] The driving mechanism can adopt a servo motor or an eccentric handle 251. The output shaft of the driving mechanism is connected with the lead screw 253 through a shaft coupling 255; and the outer side of the nut 256 is installed with a sliding block 254. The sliding block 254 serves as the output end of the linear module 2.

[0050] The operation method of the calibration stage includes:

[0051] Step 101: placing a foot sensor on a stage.

[0052] Step 102: if the range of the first calibration sensor 37 and the pressing part area of the first lower side pressing block thereof match the to-be-detected position, steps 201-203 are executed:

[0053] Step 201: adjusting the horizontal position of the pressing block 35 through the first linear module 21 and the second linear module 22, so that the pressing block 25 corresponds to the to-be-detected position of the foot sensor.

[0054] Step 202: control the first pressing block 355 to descend and press on the to-be-tested position by the third linear module 23.

[0055] Step 203: calibrate the foot bottom sensor according to the detection values of the first calibration sensor and the foot bottom sensor.

[0056] Step 102: if the range of the second calibration sensor 37 and the pressing part area of the lower pressing block thereof match the to-be-tested position, execute steps 301-304:

[0057] Step 301: control the first pressing block 355 to be higher than the upper end surface of the object table and the first linear module by the third linear module 23.

[0058] Step 302: adjust the horizontal position of the second pressing block 356 by the first linear module 21 and the second linear module 22, so that the second pressing block 356 corresponds to the to-be-tested position of the foot bottom sensor.

[0059] Step 303: control the second pressing block 356 to descend and press on the to-be-tested position by the fourth linear module 24.

[0060] Step 304: calibrate the foot bottom sensor according to the detection values of the second calibration sensor and the foot bottom sensor.

[0061] According to the detection needs, two different calibration sensors and pressing blocks can be selected to facilitate detection and improve detection efficiency; and the cooperation of the third linear module and the fourth linear module can avoid the interference of the first calibration sensor and the first pressing block on the detection of the second calibration sensor.

[0062] The detection assembly can select and replace different pressing blocks according to the detection needs of the foot bottom sensor, and the pressing part area of the pressing block is 25-900mm 2 but not limited to this.

[0063] In some of the processes described in the description, claims, and schematic diagrams of the present application, a plurality of operations appearing in a specific order are included, but it should be clearly understood that these operations can be executed or in parallel without the order in which they appear in this text, and the serial numbers of the operations, such as 101, 102, etc.; only to distinguish different operations, the serial numbers themselves do not represent any execution order. In addition, these processes can include more or fewer operations, and these operations can be executed in sequence or in parallel. It should be noted that the descriptions of "first", "second", etc. in this text are used to distinguish different mechanisms, devices, modules, etc., and do not represent the order of precedence. Also, "first" and "second" are not of different types.

[0064] The above merely is preferred embodiment of the present utility model, and is not for limiting the present utility model, for the person skilled in the art, the present utility model can have various changes and changes. Any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A calibration station for a plantar sensor, characterized in that The device comprises a plurality of linear modules (2) and a detection assembly (3); The linear modules (2) comprise a first linear module (21), a second linear module (22) and a third linear module (23); The second linear module (22) is installed at the output end of the first linear module (21), and the third linear module (23) is longitudinally arranged at the output end of the second linear module (22); the detection assembly (3) is arranged at the output end of the third linear module (23); The moving directions of the output ends of the first linear module (21) and the second linear module (22) are perpendicular; The detection assembly (3) comprises a calibration sensor and a pressing block (35) arranged at the lower side of the calibration sensor; the lower end of the pressing block (35) is provided with a pressing part (352) matched with a foot sensor (5).

2. The calibration station of claim 1, wherein, The detection assembly (3) further comprises at least one first mounting boss, and a first calibration sensor (33) is arranged at the lower side of the first mounting boss; A connecting part (351) at one end of the first pressing block (355) is detachably mounted at the lower side of the first calibration sensor (33).

3. The calibration station of claim 2, wherein, The detection assembly (3) further comprises a third connecting piece (31) and a third mounting plate (32), The third connecting piece (31) is mounted at the output end of the third linear module (23); The third mounting plate (32) is longitudinally mounted on the third connecting piece (31); The first mounting boss is mounted at the lower end of the third mounting plate (32).

4. The calibration station of claim 3, wherein, A fourth linear module (24) is further mounted on the third connecting piece (31), and the output end of the fourth linear module is provided with a fourth mounting plate (36); The lower end of the fourth mounting plate (36) is provided with at least one second mounting boss (361); a second calibration sensor (37) is detachably arranged on the second mounting boss (361).

5. The calibration station of claim 4, wherein, The pressing part area of a second pressing block (356) at the lower side of the second calibration sensor (37) is smaller than the pressing part area of a first pressing block (355) at the lower side of the first calibration sensor (33); The range of the second calibration sensor is smaller than the range of the first calibration sensor (33); The pressing portion area ranges from 25 to 900 mm 2 .

6. The calibration station of claim 1, wherein, A carrier (11) is further arranged at the lower side of the first linear module (21), and a foot sensor is arranged at the upper side of the carrier (11).

7. The calibration station of claim 1, wherein, A slide rail (26) is arranged at one side of the first linear module (21), One end of the second linear module (22) is slidably mounted on the slide rail (26).

8. The calibration station of claim 1, wherein, The linear module (2) comprises a bracket (252), a driving mechanism, a lead screw (253) and a nut (256) matched with the lead screw (253); The lead screw (253) is rotatably mounted in the bracket (252), and the output end of the driving mechanism is connected with the lead screw (253).

9. The calibration station of claim 8, wherein, The driving mechanism comprises a servo motor or an eccentric handle (251); The output shaft of the driving mechanism is connected with the lead screw (253) through a shaft coupling (255); The outer side of the nut (256) is provided with a sliding block (254).

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