CN212061196U - Time sequence instrument for handwriting identification - Google Patents

Abstract

The utility model relates to a chronogenesis appearance for handwriting appraisal, base plate mid-mounting revolving stage motor, revolving stage motor and accurate revolving stage cooperation, accurate revolving stage set up the sample respectively all around and place platform, temperature and humidity control module, suction pressure sampling module and microscope main part, and suction pressure sampling module fixes a position and moves through triaxial displacement mechanism, and the platform is placed through making a video recording sideslip module to the sample and is translational motion, and the microscope main part is through making a video recording vertically moving the module and be translational motion. The utility model can accurately shoot the image of the trace point to be detected, clearly display the change of the trace point before and after sampling, and facilitate the retaining and comparison; the suction and pressure sampling module is controlled by three-axis linkage, can accurately suck and place the adsorption sheet and impress handwriting on the surface of the adsorption sheet with moderate force, and can realize multi-point sampling; the supporting accurate revolving stage that has can accurately send the adsorption piece into the heating of temperature and humidity control module, and the location is accurate, and degree of automation is high.

Description

Time sequence instrument for handwriting identification

Technical Field

The utility model belongs to the technical field of the handwriting appraisal technique and specifically relates to a chronograph for handwriting appraisal.

Background

Handwriting identification is an important detection method, and the time interval of handwriting writing can be determined through a series of technical means. The traditional handwriting identification method comprises the following steps: the sampling strip is placed on equipment capable of realizing linear transmission, the sampling strip is a paper tape in a film style, a plurality of small holes used for positioning are symmetrically formed in two sides of the paper tape, block structures with strong adhesiveness are arranged in the middle of the paper tape at intervals, the paper tape passes through the handwriting sampling point, and a certain amount of handwriting is adhered to the lower surface of each block structure through pressing down by external force. The method has the advantages that the paper tape moves in one direction, and multi-point rapid sampling cannot be realized; for convenience of sampling, a block structure for sampling is generally heated and humidified, and at the moment, a paper tape is softened and deformed to influence positioning; the position of the paper tape is inconvenient to determine, the paper tape is positioned through the small holes formed in the two sides, the paper tape does not have continuity, the defects of inaccurate tape walking steps, non-coincident sampling points and the like are easy to occur, and meanwhile, the problem of tape clamping is easy to occur when the paper tape is punched, so that a driving motor is blocked or stopped; the pressing operation needs to be completed manually, the pressure value is recorded by a sensor, the control is inaccurate, and the automation degree is low.

SUMMERY OF THE UTILITY MODEL

The applicant aims at the defects in the prior art and provides a time sequence instrument for handwriting identification, so that multipoint automatic rapid sampling is realized, and the sampling is efficient and accurate.

The utility model discloses the technical scheme who adopts as follows:

the utility model provides a chronogenesis appearance for handwriting appraisal, which comprises a substrate, the middle part of base plate is the perpendicular installation revolving stage motor, the output of revolving stage motor upwards extends and cooperates with accurate revolving stage, the base plate top of accurate revolving stage one end sets up the sample and places the platform, set up temperature and humidity control module on the base plate of the accurate revolving stage other end, the base plate top of accurate revolving stage one side sets up the suction-pressure sampling module, the base plate top of accurate revolving stage opposite side sets up microscope main part, install triaxial displacement mechanism on the base plate of suction-pressure sampling module homonymy, suction-pressure sampling module cooperates with triaxial displacement mechanism and fixes a position and move through triaxial displacement mechanism, the sample is placed and is installed the sideslip module of making a video recording on the base plate of platform below, the sample is placed platform and is cooperated with the sideslip module of making a video recording and is the translation motion through the sideslip module of making a video recording.

The further technical scheme is as follows:

the camera shooting transverse moving module and the camera shooting longitudinal moving module are vertically arranged, the X-axis displacement module and the camera shooting transverse moving module are arranged in parallel, the Y-axis displacement module and the camera shooting longitudinal moving module are arranged in parallel, and the Z-axis displacement module and the substrate are vertically arranged;

the three-axis displacement mechanism comprises an X-axis displacement module, a Y-axis displacement module and a Z-axis displacement module; the X-axis displacement module comprises a first support provided with a first lead screw, a first motor is arranged outside one side of the first support, an output shaft of the first motor is matched with one side of the first lead screw, and a first sliding block matched with the first lead screw is further arranged on the first lead screw; the Y-axis displacement module comprises a second support provided with a second lead screw, a second motor is arranged outside one side of the second support, an output shaft of the second motor is matched with one side of the second lead screw, and a second sliding block matched with the second lead screw is further arranged on the second lead screw; the Z-axis displacement module comprises a third support provided with a third lead screw, a third motor is arranged outside one side of the third support, an output shaft of the third motor is matched with one side of the third lead screw, and a third slide block matched with the third lead screw is further arranged on the third lead screw;

a plurality of support frames are vertically arranged on the base plate below the Y-axis displacement module at intervals, the support frames are of T-shaped plate structures, the upper ends of the support frames are fixedly connected with the lower surface of the second support, the upper surface of the second sliding block is fixedly connected with the first support, and the surface of one end of the first sliding block is fixedly connected with the third support;

the camera shooting longitudinal moving module comprises a fourth support provided with a fourth lead screw, a fourth motor is arranged outside one side of the fourth support, an output shaft of the fourth motor is matched with one side of the fourth lead screw, and a fourth sliding block matched with the fourth lead screw is further arranged on the fourth lead screw; the camera shooting transverse moving module comprises a fifth support provided with a fifth screw rod, a fifth motor is arranged outside one side of the fifth support, an output shaft of the fifth motor is matched with one side of the fifth screw rod, and a fifth sliding block matched with the fifth screw rod is further arranged on the fifth screw rod; the upper surface of the fourth sliding block is fixedly connected with the lower end of the microscope main body, and the upper surface of the fifth sliding block is fixedly connected with the lower surface of the sample placing table;

the middle part of the temperature and humidity control module is provided with a temperature and humidity control groove for the precision rotary table to pass through, a plurality of sinking grooves for fixing the sample storage module are uniformly formed along the outer periphery of the upper surface of the precision rotary table, and the center of the upper surface of the sample placing table is provided with a positioning block through a screw;

the middle part of the lower surface of the substrate is provided with a control interface, and the control interface is connected with an external controller;

the suction and pressure sampling module comprises a mounting plate, the mounting plate is of an L-shaped structure, the vertical surface of the mounting plate is fixedly connected with the surface of one end of the third sliding block, the transverse surface of the mounting plate is vertically provided with an elastic straight rod and a pressurizing mechanism at intervals, the lower end of the elastic straight rod is provided with a sucker, the upper end of the elastic straight rod is provided with a suction mechanism for providing suction for the sucker, and the lower end of the pressurizing mechanism is provided with a pressure head;

the sample storage module comprises an accommodating box, the upper surface of the accommodating box is provided with a plurality of limiting counter bores, and adsorption sheets matched with the limiting counter bores in shape are placed in the limiting counter bores;

the adsorption sheet is in a circular sheet ceramic structure, and the lower surface of the adsorption sheet is uniformly coated with a viscous material for adhering handwriting.

The utility model has the advantages as follows:

the utility model has reasonable structure, convenient operation, and can accurately shoot the image of the trace point to be detected, clearly display the change of the trace point before and after sampling, facilitate the retaining and comparison, and adjust the mutual position through the camera transverse moving module and the camera longitudinal moving module, thereby facilitating the accurate positioning of the microscope main body; the suction and pressure sampling module realizes three-axis linkage control through the X-axis displacement module, the Y-axis displacement module and the Z-axis displacement module, can accurately suck and place the adsorption sheet and impress handwriting on the surface of the adsorption sheet with moderate force, can continuously move, can stably and quickly adjust the position for multiple times, realizes multi-point sampling, and simultaneously comprises a sucker and a pressure head, so that the structure is compact, and the sampling is efficient; the precise rotary table is matched, the adsorption sheet can be accurately sent to the temperature and humidity control module to be heated and then sent to the working area of the suction and pressure sampling module, the adsorption sheet is of a specially-made sheet structure, the size is small, the surface flatness is high, the handwriting impression effect is good, and the contrast data obtained after sampling is more accurate; control interface can be connected with the control box, gathers the image information that microscope main part shot to and suck and press each item data when sampling module, accurate revolving stage, sample are placed the displacement of platform and microscope main part or are rotatory, carry out comparative analysis, obtain accurate handwriting and write the time, fix a position accurately, degree of automation is high.

Drawings

Fig. 1 is an overall structure front view of the present invention.

Fig. 2 is a top view of fig. 1.

Fig. 3 is a side view of fig. 1.

Fig. 4 is a partially enlarged view of a portion a in fig. 1.

Fig. 5 is a partially enlarged view of fig. 2 at B.

Wherein: 1. an X-axis displacement module; 2. a Y-axis displacement module; 3. a temperature and humidity control module; 4. a Z-axis displacement module; 5. a precision turntable; 6. a sample storage module; 7. a camera longitudinally-moving module; 8. a substrate; 9. a microscope body; 10. a camera shooting transverse moving module; 11. positioning blocks; 12. a sample placement stage; 13. a support frame; 14. a control interface; 15. a suction pressure sampling module; 16. a turntable motor;

101. a first motor; 102. a first bracket; 103. a first lead screw; 104. a first slider;

201. a second motor; 202. a second bracket; 203. a second lead screw; 204. a second slider;

301. a temperature and humidity control tank;

401. a third motor; 402. a third support; 403. a third lead screw; 404. a third slider;

601. accommodating the box; 602. an adsorption sheet;

701. a fourth motor; 702. a fourth bracket; 703. a fourth lead screw; 704. a fourth slider;

1001. a fifth motor; 1002. a fifth support; 1003. a fifth lead screw; 1004. a fifth slider;

1501. mounting a plate; 1502. a pressurizing mechanism; 1503. a pressure head; 1504. a suction cup; 1505. an elastic straight rod; 1506. and a drawing mechanism.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

As shown in fig. 1-3, the utility model comprises a base plate 8, a turntable motor 16 is vertically installed in the middle of the base plate 8, the output end of the turntable motor 16 extends upward and cooperates with a precision turntable 5, a sample placing table 12 is installed above the base plate 8 at one end of the precision turntable 5, a temperature and humidity control module 3 is installed on the base plate 8 at the other end of the precision turntable 5, a suction and pressure sampling module 15 is installed above the base plate 8 at one side of the precision turntable 5, a microscope main body 9 is installed above the base plate 8 at the other side of the precision turntable 5, a three-axis displacement mechanism is installed on the base plate 8 at the same side of the suction and pressure sampling module 15, the suction and pressure sampling module 15 cooperates with the three-axis displacement mechanism and carries out positioning and movement through the three-axis displacement mechanism, a camera traverse module 10 is installed on the base plate 8 below the sample placing table, the base plate 8 below the microscope main body 9 is provided with the image pickup longitudinal movement module 7, and the microscope main body 9 is matched with the image pickup longitudinal movement module 7 and does translational motion through the image pickup longitudinal movement module 7.

The camera shooting transverse moving module 10 and the camera shooting longitudinal moving module 7 are arranged vertically, the X-axis moving module 1 and the camera shooting transverse moving module 10 are arranged in parallel, the Y-axis moving module 2 and the camera shooting longitudinal moving module 7 are arranged in parallel, and the Z-axis moving module 4 and the substrate 8 are arranged vertically. The three-axis displacement mechanism comprises an X-axis displacement module 1, a Y-axis displacement module 2 and a Z-axis displacement module 4; the X-axis displacement module 1 comprises a first bracket 102 provided with a first lead screw 103, a first motor 101 is arranged outside one side of the first bracket 102, an output shaft of the first motor 101 is matched with one side of the first lead screw 103, and a first sliding block 104 matched with the first lead screw 103 is further arranged on the first lead screw 103; the Y-axis displacement module 2 comprises a second bracket 202 provided with a second lead screw 203, a second motor 201 is arranged outside one side of the second bracket 202, an output shaft of the second motor 201 is matched with one side of the second lead screw 203, and a second sliding block 204 matched with the second lead screw 203 is also arranged on the second lead screw 203; the Z-axis displacement module 4 includes a third bracket 402 mounted with a third lead screw 403, a third motor 401 is mounted outside one side of the third bracket 402, an output shaft of the third motor 401 is matched with one side of the third lead screw 403, and a third slider 404 matched with the third lead screw 403 is further mounted on the third lead screw 403. A plurality of support frames 13 are vertically arranged on the substrate 8 below the Y-axis displacement module 2 at intervals, the support frames 13 are in a T-shaped plate structure, the upper ends of the support frames 13 are fixedly connected with the lower surface of the second support 202, the upper surface of the second slider 204 is fixedly connected with the first support 102, and one end surface of the first slider 104 is fixedly connected with the third support 402. The image pickup longitudinal movement module 7 comprises a fourth bracket 702 provided with a fourth lead screw 703, a fourth motor 701 is arranged outside one side of the fourth bracket 702, the output shaft of the fourth motor 701 is matched with one side of the fourth lead screw 703, and a fourth sliding block 704 matched with the fourth lead screw 703 is also arranged on the fourth lead screw 703; the camera shooting traverse module 10 comprises a fifth bracket 1002 provided with a fifth lead screw 1003, a fifth motor 1001 is arranged outside one side of the fifth bracket 1002, the output shaft of the fifth motor 1001 is matched with one side of the fifth lead screw 1003, and a fifth slider 1004 matched with the fifth lead screw 1003 is further arranged on the fifth lead screw 1003; the upper surface of the fourth slider 704 is fixedly connected to the lower end of the microscope main body 9, and the upper surface of the fifth slider 1004 is fixedly connected to the lower surface of the specimen stage 12. The middle part of the temperature and humidity control module 3 is provided with a temperature and humidity control groove 301 for the precision rotary table 5 to pass through, a plurality of sinking grooves for fixing the sample storage module 6 are uniformly formed along the outer periphery of the upper surface of the precision rotary table 5, and the center of the upper surface of the sample storage table 12 is provided with a positioning block 11 through a screw. The middle of the lower surface of the substrate 8 is provided with a control interface 14, and the control interface 14 is connected with an external controller.

As shown in fig. 4, the pressure and suction sampling module 15 includes a mounting plate 1501, the mounting plate 1501 is an L-shaped structure, a vertical surface of the mounting plate 1501 is fixedly connected to one end surface of the third slider 404, an elastic straight rod 1505 and a pressurizing mechanism 1502 are vertically arranged on a transverse surface of the mounting plate 1501 at intervals, a suction cup 1504 is mounted at a lower end of the elastic straight rod 1505, an extraction mechanism 1506 for providing suction to the suction cup 1504 is mounted at an upper end of the elastic straight rod 1505, and a pressure head 1503 is mounted at a lower end of the pressurizing mechanism 1502.

As shown in fig. 5, the sample storage module 6 includes a containing box 601, a plurality of limiting counter bores are formed on the upper surface of the containing box 601, and an absorption sheet 602 with a shape matched with the limiting counter bores is disposed in each limiting counter bore. The adsorption sheet 602 is a circular sheet-shaped ceramic structure, and the lower surface of the adsorption sheet 602 is uniformly coated with an adhesive material for adhering writings.

The utility model discloses a concrete working process as follows:

firstly, paper or other writing media written with handwriting to be detected are fixed on a sample placing table 12, the positions of a camera shooting transverse moving module 10 and a camera shooting longitudinal moving module 7 are adjusted by fixing a positioning block 11 at the center of the sample placing table 12, so that the handwriting point to be detected is positioned in the amplification range of a microscope main body 9, the focal length of the microscope main body 9 is adjusted, an image is clearly displayed, shot and stored, and the recording of original data before the handwriting point is not sampled is completed. Since handwriting is not reproducible, it is an important evidence resource and the original data needs to be archived. If a plurality of stroke points exist, the position of the microscope main body 9 can be adjusted for many times, and the primary shooting work is completed. The focusing and shooting of the camera shooting transverse moving module 10, the camera shooting longitudinal moving module 7 and the microscope main body 9 can be automatically realized through an external controller.

After the first photographing is completed, the sample placement stage 12 is moved into the working area of the suction/pressure sampling module 15 by the image pickup traverse module 10. Temperature and humidity control module 3 can open at the initial shooting in-process, and temperature and humidity control groove 301 is temperature and humidity control module 3's actual effect region. The adsorption sheets 602 stored in the accommodating box 601 are heated and humidified, in the embodiment, the number of the adsorption sheets 602 which can be placed in the accommodating box 601 is four, the adsorption sheets 602 are ceramic wafers, the lower surfaces of the ceramic wafers are coated with viscous sampling medium thin layers, the flatness of the lower surfaces of the adsorption sheets 602 directly affects the imprinted handwriting images and greatly affects subsequent comparison work, and therefore the lower surfaces of the adsorption sheets 602 have high flatness requirements. After the adsorption sheet 602 is heated and humidified, the housing box 601 containing the adsorption sheet 602 is sent to the working area of the suction/pressure sampling module 15 by the precision turn table 5. The position control of the suction and pressure sampling module 15 is realized through the adjustment of the X-axis displacement module 1, the Y-axis displacement module 2 and the Z-axis displacement module, the suction disc 1504 sucks out the adsorption sheet 602 after heating and humidification from the containing box 601, and the adsorption sheet 602 is conveyed to a position right above a handwriting point and is gently put down through the adjustment of the three displacement modules. The position of the suction and pressure sampling module 15 is adjusted slightly, so that the pressure head 1503 is pressed down with reasonable force under the control of the pressurizing mechanism 1502 to print handwriting on the lower surface of the suction piece 602. After the imprinting is completed, the suction piece 602 is sucked by the suction cup 1504 again, the position of the suction/pressure sampling module 15 is adjusted, and the suction piece 602 is put back into the housing box 601. If multi-point sampling is needed, the above steps are repeated until the sampling is completed.

After sampling is finished, the camera shooting transverse moving module 10 and the camera shooting longitudinal moving module 7 are adjusted again, and the images of all the stroke points after sampling are shot through the microscope main body 9, so that secondary shooting work is completed. The image data obtained by secondary shooting and the image data obtained by primary shooting are comprehensively compared, the comparison process is completed by an external analysis module, the comparison contents comprise the depth of handwriting, the area of the handwriting, the color of the handwriting and the like, and the accurate time information of handwriting writing can be obtained by matching with a database built in the analysis module.

In this embodiment, a control box is installed below the substrate 8, and a controller and an analysis module are installed in the control box and externally connected to a display for real-time display. The X-axis displacement module 1, the Y-axis displacement module 2, and the Z-axis displacement module are not limited to a combination of a servo motor and a lead screw, and may be other driving modules capable of realizing linear displacement.

The above description is for the purpose of explanation and not limitation of the invention, which is defined in the claims, and any modifications may be made within the scope of the invention.

Claims (10)

1. A sequencer for handwriting authentication, comprising: the device comprises a substrate (8), a rotary table motor (16) is vertically installed in the middle of the substrate (8), the output end of the rotary table motor (16) extends upwards and is matched with a precision rotary table (5), a sample placing table (12) is arranged above the substrate (8) at one end of the precision rotary table (5), a temperature and humidity control module (3) is arranged on the substrate (8) at the other end of the precision rotary table (5), a suction and pressure sampling module (15) is arranged above the substrate (8) at one side of the precision rotary table (5), a microscope main body (9) is arranged above the substrate (8) at the other side of the precision rotary table (5), a three-axis displacement mechanism is installed on the substrate (8) at the same side of the suction and pressure sampling module (15), the suction and pressure sampling module (15) is matched with the three-axis mechanism and is positioned and moved through the three-axis displacement mechanism, a camera shooting transverse displacement module (10) is, the sample placing table (12) is matched with the camera shooting transverse moving module (10) and makes translational motion through the camera shooting transverse moving module (10), the camera shooting longitudinal moving module (7) is installed on the substrate (8) below the microscope body (9), and the microscope body (9) is matched with the camera shooting longitudinal moving module (7) and makes translational motion through the camera shooting longitudinal moving module (7).

2. A sequencer for handwriting authentication according to claim 1, wherein: the camera shooting transverse moving module (10) and the camera shooting longitudinal moving module (7) are arranged vertically, the X-axis moving module (1) and the camera shooting transverse moving module (10) are arranged in parallel, the Y-axis moving module (2) and the camera shooting longitudinal moving module (7) are arranged in parallel, and the Z-axis moving module (4) and the substrate (8) are arranged vertically.

3. A sequencer for handwriting authentication according to claim 1, wherein: the three-axis displacement mechanism comprises an X-axis displacement module (1), a Y-axis displacement module (2) and a Z-axis displacement module (4);

the X-axis displacement module (1) comprises a first bracket (102) provided with a first lead screw (103), a first motor (101) is arranged outside one side of the first bracket (102), an output shaft of the first motor (101) is matched with one side of the first lead screw (103), and a first sliding block (104) matched with the first lead screw (103) is further arranged on the first lead screw (103);

the Y-axis displacement module (2) comprises a second support (202) provided with a second lead screw (203), a second motor (201) is arranged outside one side of the second support (202), an output shaft of the second motor (201) is matched with one side of the second lead screw (203), and a second sliding block (204) matched with the second lead screw (203) is further arranged on the second lead screw (203);

the Z-axis displacement module (4) comprises a third support (402) provided with a third lead screw (403), a third motor (401) is arranged outside one side of the third support (402), an output shaft of the third motor (401) is matched with one side of the third lead screw (403), and a third sliding block (404) matched with the third lead screw (403) is further arranged on the third lead screw (403).

4. A sequencer for handwriting authentication according to claim 3, wherein: a plurality of support frames (13) are vertically arranged on the base plate (8) below the Y-axis displacement module (2) at intervals, the support frames (13) are of T-shaped plate structures, the upper ends of the support frames (13) are fixedly connected with the lower surface of the second support (202), the upper surface of the second sliding block (204) is fixedly connected with the first support (102), and the surface of one end of the first sliding block (104) is fixedly connected with the third support (402).

5. A sequencer for handwriting authentication according to claim 1, wherein: the camera shooting longitudinal movement module (7) comprises a fourth support (702) provided with a fourth lead screw (703), a fourth motor (701) is arranged outside one side of the fourth support (702), an output shaft of the fourth motor (701) is matched with one side of the fourth lead screw (703), and a fourth sliding block (704) matched with the fourth lead screw (703) is further arranged on the fourth lead screw (703);

the camera shooting traverse module (10) comprises a fifth bracket (1002) provided with a fifth lead screw (1003), a fifth motor (1001) is arranged outside one side of the fifth bracket (1002), an output shaft of the fifth motor (1001) is matched with one side of the fifth lead screw (1003), and a fifth sliding block (1004) matched with the fifth lead screw (1003) is further arranged on the fifth lead screw (1003);

the upper surface of the fourth slide block (704) is fixedly connected with the lower end of the microscope body (9), and the upper surface of the fifth slide block (1004) is fixedly connected with the lower surface of the sample placing table (12).

6. A sequencer for handwriting authentication according to claim 1, wherein: the temperature and humidity control groove (301) that supply accurate revolving stage (5) to pass through is seted up at the middle part of temperature and humidity control module (3), evenly sets up a plurality of along accurate revolving stage (5) upper surface periphery and is used for fixed sample to deposit the heavy groove of module (6), and there is locating piece (11) at sample placing table (12) upper surface center through the mounting screw.

7. A sequencer for handwriting authentication according to claim 1, wherein: the middle of the lower surface of the substrate (8) is provided with a control interface (14), and the control interface (14) is connected with an external controller.

8. A sequencer for handwriting authentication according to claim 1, wherein: the suction and pressure sampling module (15) comprises a mounting plate (1501), the mounting plate (1501) is of an L-shaped structure, the vertical surface of the mounting plate (1501) is fixedly connected with the surface of one end of a third sliding block (404), an elastic straight rod (1505) and a pressurizing mechanism (1502) are vertically arranged on the transverse surface of the mounting plate (1501) at intervals, a sucking disc (1504) is mounted at the lower end of the elastic straight rod (1505), an extraction mechanism (1506) for providing suction for the sucking disc (1504) is mounted at the upper end of the elastic straight rod (1505), and a pressure head (1503) is mounted at the lower end of the pressurizing mechanism (1502).

9. A sequencer for handwriting authentication according to claim 6, wherein: the sample storage module (6) comprises an accommodating box (601), a plurality of limiting counter bores are formed in the upper surface of the accommodating box (601), and adsorption sheets (602) matched with the limiting counter bores in shape are placed in the limiting counter bores.

10. A sequencer for handwriting authentication according to claim 9, wherein: the adsorption sheet (602) is of a circular sheet-shaped ceramic structure, and the lower surface of the adsorption sheet (602) is uniformly coated with an adhesive material for adhering writings.

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