Multi-directional synchronous fine-tuning fingerprint comparison microscope sliding transmission device

Abstract

The application discloses a multi-direction synchronous fine adjustment fingerprint comparison microscope sliding transmission device, and relates to the technical field of microscope accessory structure, which comprises a microscope side plate, a linear fine adjustment transmission mechanism is arranged on the outside of the microscope side plate and the inside of the microscope side plate, and an inclined fine adjustment mechanism is arranged in the linear fine adjustment transmission mechanism; the linear fine adjustment transmission mechanism can perform linear fine adjustment on the lens of the fingerprint comparison microscope and the X, Y and Z three-axis positions of the objects to be compared; the multi-direction synchronous fine adjustment fingerprint comparison microscope sliding transmission device is provided with the linear fine adjustment transmission mechanism, the rotation angle of the rotating rod can be accurately measured through the angle sensor, the length of the output end of the first, second and third telescopic rods can be controlled correspondingly, linear fine adjustment can be conveniently performed on the lens of the fingerprint comparison microscope and the X, Y and Z three-axis positions of the objects to be compared, and the precision and comparison efficiency of the microscope are improved.

Description

Technical Field

[0001] This invention relates to the field of microscope accessory structure technology, specifically to a sliding transmission device for a fingerprint comparison microscope with multi-directional synchronous fine adjustment. Background Technology

[0002] Fingerprint comparison microscopes are core equipment in the fields of public security criminal investigation and forensic identification. They are mainly used to accurately compare the microscopic morphology, texture details and breakpoint features of incomplete and blurred fingerprints extracted from the scene with standard fingerprint samples. The adjustment accuracy, synchronization and stability of its sliding transmission mechanism directly determine the accuracy of fingerprint comparison.

[0003] Existing fingerprint comparison microscopes mostly use a single screw drive structure for their sliding transmission mechanism. This results in low resolution for micro-displacement adjustment and an inability to adapt to the micron-level precise alignment of incomplete fingerprints and fine ridge breaks. This easily leads to comparison deviations and errors in forensic identification. Furthermore, due to issues such as fingerprint film tilt, uneven carrier surface, local pressure deformation of fingerprints, and misalignment of incomplete ridges, traditional transmission mechanisms can only perform horizontal displacement adjustment and cannot correct the slight tilt angle of the carrier platform. As a result, tilted fingerprints can never be completely aligned with the optical focal plane of the microscope, leading to problems such as local defocusing, blurred features, and missing details in the observation image. Forensic personnel can only correct these issues by manually padding and repeatedly adjusting the placement of the evidence. This operation is highly random and has poor repeatability, easily causing the omission of key features such as fine fingerprint breaks, sweat pores, and ridge bifurcation, directly causing fingerprint comparison errors. In severe cases, this can lead to deviations in forensic identification conclusions, affecting case investigation and reducing the fingerprint comparison accuracy and efficiency of the fingerprint comparison microscope.

[0004] Combining the above problems, we find that existing sliding transmission devices for fingerprint comparison microscopes are difficult to avoid simultaneously when in use. Even if they can be solved, they require external tools, thus failing to achieve the desired effect. Therefore, we propose a multi-directional synchronous fine-tuning sliding transmission device for fingerprint comparison microscopes. Summary of the Invention

[0005] The purpose of this invention is to provide a multi-directional synchronous fine-tuning sliding transmission device for a fingerprint comparison microscope, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a multi-directional synchronous fine-tuning fingerprint comparison microscope sliding transmission device, including a microscope side plate, wherein a linear fine-tuning transmission mechanism is provided both outside and inside the microscope side plate, and a tilting fine-tuning mechanism is provided inside the fine-tuning transmission mechanism.

[0007] The linear fine-tuning transmission mechanism can perform linear fine-tuning of the lens of the fingerprint comparison microscope and the X, Y, and Z axis positions of the items to be compared.

[0008] The tilt adjustment mechanism can finely adjust the tilt angle of the lens of the fingerprint comparison microscope.

[0009] Preferably, the linear fine-tuning transmission mechanism includes a PLC controller. The right side of the PLC controller is fixedly connected to the left side of the microscope side plate. A fingerprint comparison display screen is fixedly embedded in the left side of the microscope side plate. Rotating rods arranged at equal intervals are rotatably connected inside the microscope side plate. A torsion disk is fixedly connected to the end of each rotating rod away from the microscope side plate. Angle sensors arranged at equal intervals are fixedly connected to one side of the microscope side plate. A supporting base plate is fixedly connected to the right side of the microscope side plate. A first telescopic rod and a first guide rail are fixedly connected to the upper surface of the supporting base plate. A first slider is slidably connected inside the first guide rail. A moving plate is fixedly connected to the upper surface of the first slider. A second telescopic rod and a second guide rail are fixedly connected to the upper surface of the moving plate. A second slider is fixedly connected to the telescopic end of the second telescopic rod. A placement plate is fixedly connected to the upper surface of the second slider. A top plate is fixedly connected to the upper surface of the microscope side plate. A third telescopic rod is fixedly connected to the inner wall of the top plate. The three angle sensors are respectively signal-connected to the first telescopic rod, the second telescopic rod, and the third telescopic rod through the PLC controller.

[0010] Preferably, an operation display screen is fixedly embedded on the left side of the PLC controller. The operation display screen is connected to the PLC controller via wires. Two sets of control buttons are slidably connected inside the PLC controller. Each set of control buttons is connected to the PLC controller via wires.

[0011] Preferably, the tilting fine-tuning mechanism includes a lifting plate, the telescopic end of the third telescopic rod is fixedly connected to the upper surface of the lifting plate, a rotating motor is fixedly connected to the bottom surface of the lifting plate, a rotating disk is fixedly connected to the output end of the rotating motor, a microscope lens is spherically hinged to the bottom surface of the rotating disk, the microscope lens is connected to the fingerprint comparison display screen via a PLC controller, an extension plate arranged in equal distances in a circle is fixedly connected to the bottom surface of the rotating disk, an adjusting telescopic rod is fixedly connected to the inner wall of each extension plate, each adjusting telescopic rod and the rotating motor are connected to the PLC controller via wires, a pushing slider is movably hinged to the telescopic end of each adjusting telescopic rod, a limiting guide rail arranged in equal distances in a circle is fixedly connected to the outer surface of the microscope lens, several pushing sliders are slidably connected to the interior of several limiting guide rails, two sets of extension rods are fixedly connected to the bottom surface of the lifting plate, a high-definition camera is fixedly connected to the bottom end of each set of extension rods, and each set of high-definition cameras is connected to the fingerprint comparison display screen via a PLC controller.

[0012] Preferably, the telescopic end of the third telescopic rod is fixedly connected to a reinforcing ring, and the bottom surface of the reinforcing ring is fixedly connected to the upper surface of the lifting plate.

[0013] Preferably, the bottom surface of the lifting plate is fixedly connected to an annular slide rail, and the upper surface of the rotating disk is fixedly connected to guide slide rods arranged in a circular pattern at equal intervals, with each guide slide rod slidably connected inside the annular slide rail.

[0014] Preferably, the bottom surface of the support base plate is fixedly connected to two sets of support legs, and the bottom end of each set of support legs is fixedly connected to a support chassis.

[0015] Preferably, two support columns are fixedly connected to the upper surface of the support base plate, and the top of each support column is fixedly connected to the bottom surface of the upper top plate.

[0016] Preferably, a stabilizing ring is fixedly connected to the outer surface of each of the support columns, and the bottom surface of each stabilizing ring is fixedly connected to the upper surface of the support base plate.

[0017] Preferably, a storage battery is fixedly connected to the upper surface of the top plate, and the storage battery is electrically connected to the electrical equipment of the sliding transmission device of the fingerprint comparison microscope via wires.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. This invention, by setting up a linear fine-tuning transmission mechanism, enables precise measurement of the rotation angle of a rotating rod by manually twisting a torsion disc at one end of the rotating rod, using angle sensors. Since the three angle sensors correspond to the first, second, and third telescopic rods respectively, the PLC controller can analyze and process the sensor data to control the extension and retraction lengths of the output ends of the first, second, and third telescopic rods. This allows the first telescopic rod to easily drive the first slider to slide within the first guide rail. Furthermore, a moving plate is fixed to the first slider, causing the moving plate to carry the second... The telescopic rod and the second guide rail slide on the first guide rail, and the second telescopic rod drives the second slider to slide the placement plate inside and on the second guide rail, thereby facilitating the adjustment of the horizontal position of the item to be compared on the placement plate. A top plate is fixed on the side plate of the microscope to install the third telescopic rod. By controlling the third telescopic rod to drive the lens of the fingerprint comparison microscope to move up and down, it is convenient to make linear fine adjustments to the X, Y, and Z axis positions of the lens of the fingerprint comparison microscope and the item to be compared, thereby improving the micro-displacement adjustment resolution of the sliding transmission device and improving the fingerprint comparison accuracy and comparison efficiency of the fingerprint comparison microscope.

[0020] 2. This invention, by setting up a tilting fine-tuning mechanism, can utilize a lifting plate fixed to the telescopic end of the third telescopic rod to facilitate the lifting and moving of the lifting plate along with other structures. Because two sets of extension rods and a high-definition camera are fixed to the bottom surface of the lifting plate, it is convenient to scan and photograph the positions of items to be compared on the shelf. The PLC controller then analyzes the scanned data to further precisely control the extension and retraction lengths of the output ends of the first, second, and third telescopic rods. Furthermore, a rotating motor is fixed under the lifting plate to drive a rotating disk, and the extension plate fixed under the rotating disk is used to install and adjust the telescopic rods. The spherical hinged microscope lens under the rotating disk allows for convenient collection of fingerprints from the surface of objects to be compared on the display plate. The telescopic force provided by the adjusting rod allows the movable sliding block at the telescopic end of the rod to slide within a fixed guide rail outside the microscope lens, facilitating adjustment of the lens's tilt angle. A PLC controller precisely controls the rotating motor and the two sets of adjusting rods to maintain a suitable tilt angle for the microscope lens, further improving the micro-displacement adjustment resolution of the sliding transmission device. This ultimately enhances the fingerprint comparison accuracy and efficiency of the fingerprint comparison microscope. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a rear view schematic diagram of the storage panel of the present invention;

[0023] Figure 3 This is a schematic diagram of the angle sensor structure of the present invention;

[0024] Figure 4 This is a schematic diagram of the structure of the second guide rail of the present invention;

[0025] Figure 5 This is a bottom view of the structure of the second slider of the present invention;

[0026] Figure 6 This is a schematic diagram of the lifting plate of the present invention;

[0027] Figure 7 This is a schematic diagram of the microscope lens structure from below, based on the present invention.

[0028] In the picture:

[0029] 1. Microscope side panel; 2. Linear fine-tuning transmission mechanism; 201. PLC controller; 202. Operation display screen; 203. Control button; 204. Rotating rod; 205. Torque disk; 206. Angle sensor; 207. Support base plate; 208. First telescopic rod; 209. First guide rail; 210. First slider; 211. Moving plate; 212. Second telescopic rod; 213. Second guide rail; 214. Second slider; 215. Placement plate; 216. Top plate; 217. Third... 218. Telescopic rod; 3. Fingerprint comparison display screen; 4. Tilting fine-tuning mechanism; 5. Lifting plate; 6. Reinforcing ring; 7. Extension rod; 8. High-definition camera; 9. Rotary motor; 10. Rotating disk; 11. Circular slide rail; 22. Guide slide rod; 33. Microscope lens; 44. Extension plate; 55. Adjusting telescopic rod; 66. Push slider; 77. Limiting guide rail; 8. Support column; 9. Stabilizing ring; 10. Support leg; 11. Support chassis; 12. Battery. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Example 1: Please refer to Figures 1-7The present invention provides a technical solution: a multi-directional synchronous fine-tuning fingerprint comparison microscope sliding transmission device, including a microscope side plate 1, a linear fine-tuning transmission mechanism 2 is provided on the outside and inside of the microscope side plate 1, and an inclined fine-tuning mechanism 3 is provided inside the fine-tuning transmission mechanism 2.

[0032] The linear fine-tuning transmission mechanism 2 can perform linear fine-tuning of the X, Y, and Z axis positions of the fingerprint comparison microscope lens and the items to be compared.

[0033] As a further definition of the linear fine-tuning transmission mechanism 2 of the present invention, the linear fine-tuning transmission mechanism 2 includes a PLC controller 201. The PLC controller 201 is a digital electronic device with a microprocessor, a digital logic controller for automated control, which can load control instructions into memory for storage and execution at any time. The right side of the PLC controller 201 is fixedly connected to the left side of the microscope side plate 1. A fingerprint comparison display screen 218 is fixedly embedded in the left side of the microscope side plate 1. The fingerprint comparison display screen 218 is connected to the PLC controller 201 via wires. Rotating rods 204 arranged at equal intervals are rotatably connected inside the microscope side plate 1. A torsion disk 205 is fixedly connected to the end of each rotating rod 204 away from the microscope side plate 1. Angle sensors 206 arranged at equal intervals are fixedly connected to one side of the microscope side plate 1. The angle sensors 206 are sensors used to detect angles. The sensing ends of several angle sensors 206 are respectively in contact with the outer surfaces of several rotating rods 204. A supporting base plate 207 is fixedly connected to the right side of the microscope side plate 1. The upper surface of component 07 is fixedly connected to a first telescopic rod 208 and a first guide rail 209. A first slider 210 is slidably connected inside the first guide rail 209. The left side of the first slider 210 is fixedly connected to the telescopic end of the first telescopic rod 208. A movable plate 211 is fixedly connected to the upper surface of the first slider 210. The bottom surface of the movable plate 211 contacts the upper surface of the first guide rail 209. A second telescopic rod 212 and a second guide rail 213 are fixedly connected to the upper surface of the movable plate 211. The telescopic end of the second telescopic rod 212 is fixedly connected to... There is a second slider 214, which is slidably connected to the inside of the second guide rail 213. A placement plate 215 is fixedly connected to the upper surface of the second slider 214. The bottom surface of the placement plate 215 is in contact with the upper surface of the second guide rail 213. An upper top plate 216 is fixedly connected to the upper surface of the microscope side plate 1. A third telescopic rod 217 is fixedly connected to the inner wall of the upper top plate 216. Three angle sensors 206 are respectively connected to the first telescopic rod 208, the second telescopic rod 212 and the third telescopic rod 217 through the PLC controller 201.

[0034] Please see Figure 1An operation display screen 202 is fixedly embedded on the left side of the PLC controller 201. The operation display screen 202 is connected to the PLC controller 201 via wires. Two sets of control buttons 203 are slidably connected inside the PLC controller 201. Each set of control buttons 203 is connected to the PLC controller 201 via wires. The data inside the PLC controller 201 can be conveniently displayed by manually operating the operation display screen 202, while the PLC controller 201 can be conveniently controlled by the two sets of control buttons 203.

[0035] Please see Figure 2 Two sets of support legs 6 are fixedly connected to the bottom surface of the support base plate 207. Each set of support legs 6 is fixedly connected to the bottom end of a support chassis 7. By fixing two sets of support legs 6 and support chassis 7 to the bottom surface of the support base plate 207, the support structure of the device is formed, thereby improving the support stability of the device.

[0036] Please see Figure 1 , Figure 2 and Figure 3 Two support columns 4 are fixedly connected to the upper surface of the support base plate 207. The top of each support column 4 is fixedly connected to the bottom surface of the upper top plate 216. The two support columns 4 are fixed between the support base plate 207 and the upper top plate 216, so that the upper top plate 216 can be stably supported above the support base plate 207.

[0037] Please see Figure 3 Each support column 4 has a fixed stabilizing ring 5 on its outer surface. The bottom surface of each stabilizing ring 5 is fixedly connected to the upper surface of the support base plate 207. The stabilizing ring 5 is fixed at the connection between the support column 4 and the support base plate 207, thereby improving the connection stability between the two support columns 4 and the support base plate 207.

[0038] Please see Figure 1 , Figure 2 and Figure 3 A battery 8 is fixedly connected to the upper surface of the top plate 216. The battery 8 is electrically connected to the electrical equipment of the fingerprint comparison microscope sliding transmission device through wires. The battery 8 is used to charge the internal components of the fingerprint comparison microscope sliding transmission device and to supply power to the electrical equipment of the fingerprint comparison microscope sliding transmission device.

[0039] The specific implementation of this embodiment is as follows: In use, firstly, the PLC controller 201, angle sensor 206, first telescopic rod 208, second telescopic rod 212, third telescopic rod 217, and fingerprint comparison display screen 218 are connected to the battery 8 of the multi-directional synchronous fine-tuning fingerprint comparison microscope sliding transmission device. When it is necessary to use the multi-directional synchronous fine-tuning fingerprint comparison microscope sliding transmission device to extract and compare fingerprint data on an object, firstly, two sets of support legs 6 and support base 7 are fixed to the bottom surface of the support base plate 207 to form the support structure of the device, thereby improving the support stability of the device. Two support columns 4 are fixed to the support base plate 207 and the upper top plate 218. Between 6, the top plate 216 can be stably supported above the support base plate 207. A stabilizing ring 5 is used to fix it at the connection between the support column 4 and the support base plate 207, thereby improving the connection stability between the two support columns 4 and the support base plate 207. A storage battery 8 is used to facilitate internal charging, and the storage battery 8 supplies power to the electrical equipment of the fingerprint comparison microscope sliding transmission device. A rotating rod 204 installed in the microscope side plate 1 is used. By manually twisting the torsion disk 205 at one end of the rotating rod 204, the rotation angle of the rotating rod 204 can be accurately measured by the angle sensor 206. Since the three angle sensors 206 are respectively connected to the first telescopic rod 208, the second... The telescopic rods 212 and 217 correspond to each other. The PLC controller 201 analyzes and processes the detection data from the angle sensor 206, correspondingly controlling the extension and retraction lengths of the output ends of the first telescopic rod 208, second telescopic rod 212, and third telescopic rod 217. This allows the first telescopic rod 208 to easily drive the first slider 210 to slide within the first guide rail 209. The display screen 202 is manually operated to conveniently display the data within the PLC controller 201. Two sets of control buttons 203 facilitate the operation of the PLC controller 201. Since a moving plate 211 is fixed to the first slider 210, the moving plate 211 carries the second… The telescopic rod 212 and the second guide rail 213 slide on the first guide rail 209. The second telescopic rod 212 drives the second slider 214 to slide the placement plate 215 within and on the second guide rail 213, thereby facilitating the adjustment of the horizontal position of the item on the placement plate 215 that needs to be compared with fingerprints. The top plate 216 is fixed on the side plate 1 of the microscope to install the third telescopic rod 217. By controlling the third telescopic rod 217 to drive the lens of the fingerprint comparison microscope to move up and down, it is convenient to make linear fine adjustments to the X, Y and Z axis positions of the lens of the fingerprint comparison microscope and the item to be compared, thereby improving the micro-displacement adjustment resolution of the sliding transmission device.

[0040] Example 2: Please refer to Figure 1 , Figure 2 , Figure 6 and Figure 7 The present invention provides a technical solution: a sliding transmission device for a fingerprint comparison microscope with multi-directional synchronous fine adjustment. The present invention makes corresponding improvements to the technical problems mentioned in the background art. The tilt fine adjustment mechanism 3 can finely adjust the tilt angle of the lens of the fingerprint comparison microscope.

[0041] As a further definition of the tilting fine-tuning mechanism 3 of the present invention, the tilting fine-tuning mechanism 3 includes a lifting plate 301, the telescopic end of the third telescopic rod 217 is fixedly connected to the upper surface of the lifting plate 301, a rotating motor 305 is fixedly connected to the bottom surface of the lifting plate 301, a rotating disk 306 is fixedly connected to the output end of the rotating motor 305, a microscope lens 309 is spherically hinged to the bottom surface of the rotating disk 306, the microscope lens 309 is connected to the fingerprint comparison display screen 218 via a PLC controller 201, and extension plates 310 arranged circumferentially at equal intervals are fixedly connected to the bottom surface of the rotating disk 306. An adjusting telescopic rod 311 is fixedly connected to the inner wall of each extension plate 310, and each adjusting telescopic rod 311 and the rotating motor 306 are connected to the upper surface of the lifting plate 301. All 05 are connected to the PLC controller 201 via wires. Each telescopic adjustment rod 311 has a movable sliding block 312 hinged to its telescopic end. The outer surface of the microscope lens 309 is fixedly connected to a circumferentially arranged limiting guide rail 313. Several sliding blocks 312 are slidably connected to the inside of several limiting guide rails 313. The bottom surface of the lifting plate 301 is fixedly connected to two sets of extension rods 303. The bottom end of each set of extension rods 303 is fixedly connected to a high-definition camera 304. The high-definition camera 304 refers to an HD1080P, HD960P, or HD720P camera. Each set of high-definition cameras 304 is connected to the fingerprint comparison display screen 218 via the PLC controller 201.

[0042] Please see Figure 6 The telescopic end of the third telescopic rod 217 is fixedly connected to a reinforcing ring 302. The bottom surface of the reinforcing ring 302 is fixedly connected to the upper surface of the lifting plate 301. The reinforcing ring 302 is fixed at the connection between the telescopic end of the third telescopic rod 217 and the lifting plate 301, thereby improving the connection stability between the telescopic end of the third telescopic rod 217 and the lifting plate 301.

[0043] Please see Figure 6 and Figure 7 The bottom surface of the lifting plate 301 is fixedly connected to an annular slide rail 307, and the upper surface of the rotating disk 306 is fixedly connected to guide slide rods 308 arranged in a circular pattern at equal intervals. Each guide slide rod 308 is slidably connected inside the annular slide rail 307. By using multiple guide slide rods 308 inside the annular slide rail 307, the rotation of the rotating disk 306 is improved by causing multiple guide slide rods 308 to rotate inside the annular slide rail 307 while driving the rotating disk 306 to rotate.

[0044] The specific implementation of this embodiment is as follows: In use, firstly, the high-definition camera 304, the rotating motor 305, the microscope lens 309, and the adjusting telescopic rod 311 are connected to the battery 8 of the multi-directional synchronous fine-tuning fingerprint comparison microscope sliding transmission device. When it is necessary to use the multi-directional synchronous fine-tuning fingerprint comparison microscope sliding transmission device to extract and compare fingerprint data on an object, the lifting plate 301 fixed at the telescopic end of the third telescopic rod 217 is used to facilitate the lifting and moving of the lifting plate 301 along with other structures. The reinforcing ring 302 is used to fix the third telescopic rod 217. The connection between the telescopic end of the third telescopic rod 217 and the lifting plate 301 is improved, thereby enhancing the connection stability between the telescopic end of the third telescopic rod 217 and the lifting plate 301. Furthermore, by fixing two sets of extension rods 303 and a high-definition camera 304 to the bottom surface of the lifting plate 301, it is convenient to scan and photograph the positions of items to be compared on the shelf 215. The PLC controller 201 then analyzes the scanned data to further precisely control the extension and retraction lengths of the output ends of the first telescopic rod 208, the second telescopic rod 212, and the third telescopic rod 217. Additionally, a rotating mechanism is fixed under the lifting plate 301. A rotating motor 305 drives the rotating disk 306 to rotate. Multiple guide rods 308 are arranged inside the annular slide rail 307. While driving the rotating disk 306 to rotate, the guide rods 308 rotate within the annular slide rail 307, improving the stability of the rotating disk 306. An extension plate 310 fixed under the rotating disk 306 is used to install the adjusting telescopic rod 311. Because a microscope lens 309 is spherically hinged under the rotating disk 306, the microscope lens 309 can be used to easily adjust the placement plate 21. 5. Fingerprints on the surface of the items to be compared are collected. The telescopic force provided by the telescopic rod 311 allows the sliding block 312, which is hinged at the telescopic end of the telescopic rod 311, to slide within the limiting guide rail 313 fixed outside the microscope lens 309. This facilitates the adjustment of the tilt angle of the microscope lens 309. The PLC controller 201 precisely controls the rotating motor 305 and the two sets of telescopic rods 311 to ensure that the microscope lens 309 has a suitable tilt angle, thereby further improving the micro-displacement adjustment resolution of the sliding transmission device.

[0045] Example 3: Specifically, the sliding transmission device of this multi-directional synchronous fine-tuning fingerprint comparison microscope operates / is used as follows:

[0046] First, connect the PLC controller 201, angle sensor 206, first telescopic rod 208, second telescopic rod 212, third telescopic rod 217, and fingerprint comparison display screen 218 to the battery 8 of the multi-directional synchronous fine-tuning fingerprint comparison microscope sliding transmission device. When the multi-directional synchronous fine-tuning fingerprint comparison microscope sliding transmission device is needed to extract and compare fingerprint data on an object, first fix two sets of support legs 6 and support base 7 to the bottom surface of the support base plate 207 to form the support structure of the device, thereby improving the support stability of the device. Two support columns 4 are fixed between the support base plate 207 and the upper top plate 216 to ensure that the upper top plate 216 is stably supported above the support base plate 207. A stabilizing ring 5 is used to fix the connection between the support column 4 and the support base plate 207, thereby improving the connection stability between the two support columns 4 and the support base plate 207. A storage battery 8 is used to facilitate internal charging and to power the electrical equipment of the fingerprint comparison microscope sliding transmission device. A rotating rod 204 located in the microscope side plate 1 is manually rotated via a torsion disk 205 at one end, allowing for precise measurement of the rotation angle of the rotating rod 204 by the angle sensor 206. Since the three angle sensors 206 correspond to the first telescopic rod 208, the second telescopic rod 212, and the third telescopic rod 217 respectively, the PLC controller 201 can monitor the detection data of the angle sensors 206. According to the analysis and processing, the extension and retraction lengths of the output ends of the first telescopic rod 208, the second telescopic rod 212, and the third telescopic rod 217 are controlled accordingly. This allows the first telescopic rod 208 to drive the first slider 210 to slide within the first guide rail 209. The display screen 202 is manually operated to conveniently display data within the PLC controller 201. Two sets of control buttons 203 facilitate the operation of the PLC controller 201. Since a moving plate 211 is fixed on the first slider 210, the moving plate 211 carries the second telescopic rod 212 and the second guide rail 213 to slide on the first guide rail 209. Furthermore, the second telescopic rod 212 drives the second slider 214 to carry the shelf 215 to the second guide rail 209. The fingerprint comparison microscope slides within and on the second guide rail 213, facilitating the adjustment of the horizontal position of the item to be compared on the display plate 215. A top plate 216 is fixed to the side plate 1 of the microscope to mount the third telescopic rod 217. By controlling the third telescopic rod 217, the lens of the fingerprint comparison microscope is moved up and down, allowing for linear fine-tuning of the X, Y, and Z axes of the lens and the item to be compared. This improves the micro-displacement adjustment resolution of the sliding transmission device. In use, the high-definition camera 304, the rotating motor 305, the microscope lens 309, and the telescopic rod 311 are first connected to the battery 8 of the multi-directional synchronous fine-tuning fingerprint comparison microscope sliding transmission device.When using the sliding transmission device of the multi-directional synchronous fine-tuning fingerprint comparison microscope to extract and compare fingerprint data on an object, the lifting plate 301 fixed to the telescopic end of the third telescopic rod 217 is first used to facilitate the lifting and moving of the lifting plate 301 along with other structures. A reinforcing ring 302 is fixed at the connection between the telescopic end of the third telescopic rod 217 and the lifting plate 301, thereby improving the connection stability between the telescopic end of the third telescopic rod 217 and the lifting plate 301. Two sets of extension rods 303 and a high-definition camera 304 are fixed to the bottom surface of the lifting plate 301 to facilitate scanning and photographing the position of the object to be compared on the shelf 215. The PLC controller 201 analyzes the scanned data to further precisely control the extension and retraction lengths of the output ends of the first telescopic rod 208, the second telescopic rod 212, and the third telescopic rod 217. A rotating motor 305 is fixed under the lifting plate 301 to drive the rotating disk 306 to rotate. Multiple guide rods 308 are used to set... Inside the annular slide rail 307, while driving the rotating disk 306 to rotate, multiple guide rods 308 rotate within the annular slide rail 307, improving the stability of the rotating disk 306. An extension plate 310 fixed under the rotating disk 306 is used to mount the adjusting telescopic rod 311. Because a spherically hinged microscope lens 309 is located under the rotating disk 306, it is convenient to collect fingerprints from the surface of the object to be compared on the placement plate 215 through the microscope lens 309. The telescopic force provided by the adjusting telescopic rod 311 allows the movable sliding block 312 at the telescopic end of the adjusting telescopic rod 311 to slide within the limiting guide rail 313 fixed outside the microscope lens 309, facilitating the adjustment of the tilt angle of the microscope lens 309. The PLC controller 201 precisely controls the rotating motor 305 and the two sets of adjusting telescopic rods 311 to ensure the microscope lens 309 has a suitable tilt angle, further improving the micro-displacement adjustment resolution of the sliding transmission device.

[0047] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0048] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sliding transmission device for a multi-directional synchronous fine-tuning fingerprint comparison microscope, comprising a microscope side plate (1), characterized in that: A linear fine-tuning transmission mechanism (2) is provided both on the outside and inside of the microscope side plate (1), and a tilting fine-tuning mechanism (3) is provided inside the fine-tuning transmission mechanism (2). The linear fine-tuning transmission mechanism (2) can perform linear fine-tuning of the lens of the fingerprint comparison microscope and the X, Y and Z axis positions of the items to be compared. The tilt adjustment mechanism (3) can finely adjust the tilt angle of the lens of the fingerprint comparison microscope.

2. The sliding transmission device for a multi-directional synchronous fine-tuning fingerprint comparison microscope according to claim 1, characterized in that: The linear fine-tuning transmission mechanism (2) includes a PLC controller (201). The right side of the PLC controller (201) is fixedly connected to the left side of the microscope side plate (1). A fingerprint comparison display screen (218) is fixedly embedded on the left side of the microscope side plate (1). Rotating rods (204) arranged at equal intervals are rotatably connected inside the microscope side plate (1). A torsion disk (205) is fixedly connected to the end of each rotating rod (204) away from the microscope side plate (1). Angle sensors (206) arranged at equal intervals are fixedly connected to one side of the microscope side plate (1). A support base plate (207) is fixedly connected to the right side of the microscope side plate (1). A first telescopic rod (208) and a first guide rail (209) are fixedly connected to the upper surface of the support base plate (207). A first slider (210) is slidably connected inside a guide rail (209). A movable plate (211) is fixedly connected to the upper surface of the first slider (210). A second telescopic rod (212) and a second guide rail (213) are fixedly connected to the upper surface of the movable plate (211). A second slider (214) is fixedly connected to the telescopic end of the second telescopic rod (212). A placement plate (215) is fixedly connected to the upper surface of the second slider (214). An upper top plate (216) is fixedly connected to the upper surface of the microscope side plate (1). A third telescopic rod (217) is fixedly connected to the inner wall of the upper top plate (216). Three angle sensors (206) are respectively connected to the first telescopic rod (208), the second telescopic rod (212), and the third telescopic rod (217) via a PLC controller (201).

3. The sliding transmission device for a multi-directional synchronous fine-tuning fingerprint comparison microscope according to claim 2, characterized in that: An operation display screen (202) is fixedly embedded on the left side of the PLC controller (201). The operation display screen (202) is connected to the PLC controller (201) via wires. Two sets of control buttons (203) are slidably connected inside the PLC controller (201). Each set of control buttons (203) is connected to the PLC controller (201) via wires.

4. The sliding transmission device for a multi-directional synchronous fine-tuning fingerprint comparison microscope according to claim 2, characterized in that: The tilting fine-tuning mechanism (3) includes a lifting plate (301), the telescopic end of the third telescopic rod (217) is fixedly connected to the upper surface of the lifting plate (301), a rotating motor (305) is fixedly connected to the bottom surface of the lifting plate (301), a rotating disk (306) is fixedly connected to the output end of the rotating motor (305), a microscope lens (309) is spherically hinged to the bottom surface of the rotating disk (306), the microscope lens (309) is data-connected to the fingerprint comparison display screen (218) through a PLC controller (201), an extension plate (310) arranged equidistantly is fixedly connected to the bottom surface of the rotating disk (306), and an adjusting telescopic rod (311) is fixedly connected to the inner wall of each extension plate (310). The telescopic rod (311) and the rotating motor (305) are both connected to the PLC controller (201) via wires. Each telescopic rod (311) has a push slider (312) movably hinged at its telescopic end. The outer surface of the microscope lens (309) is fixedly connected to a circumferentially arranged limiting guide rail (313). Several push sliders (312) are slidably connected to the interior of several limiting guide rails (313). The bottom surface of the lifting plate (301) is fixedly connected to two sets of extension rods (303). The bottom end of each set of extension rods (303) is fixedly connected to a high-definition camera (304). Each set of high-definition cameras (304) is connected to the fingerprint comparison display screen (218) via the PLC controller (201).

5. The sliding transmission device for a multi-directional synchronous fine-tuning fingerprint comparison microscope according to claim 4, characterized in that: The telescopic end of the third telescopic rod (217) is fixedly connected to a reinforcing ring (302), and the bottom surface of the reinforcing ring (302) is fixedly connected to the upper surface of the lifting plate (301).

6. The sliding transmission device for a multi-directional synchronous fine-tuning fingerprint comparison microscope according to claim 4, characterized in that: The bottom surface of the lifting plate (301) is fixedly connected to an annular slide rail (307), and the upper surface of the rotating disk (306) is fixedly connected to guide slide rods (308) arranged in a circular pattern at equal intervals. Each guide slide rod (308) is slidably connected inside the annular slide rail (307).

7. The sliding transmission device for a multi-directional synchronous fine-tuning fingerprint comparison microscope according to claim 2, characterized in that: The bottom surface of the support base plate (207) is fixedly connected to two sets of support legs (6), and the bottom end of each set of support legs (6) is fixedly connected to a support chassis (7).

8. The sliding transmission device for a multi-directional synchronous fine-tuning fingerprint comparison microscope according to claim 2, characterized in that: Two support columns (4) are fixedly connected to the upper surface of the support base plate (207), and the top of each support column (4) is fixedly connected to the bottom surface of the upper top plate (216).

9. The sliding transmission device for a multi-directional synchronous fine-tuning fingerprint comparison microscope according to claim 8, characterized in that: Each of the support columns (4) has a stabilizing ring (5) fixedly connected to its outer surface, and the bottom surface of each stabilizing ring (5) is fixedly connected to the upper surface of the support base plate (207).

10. The sliding transmission device for a multi-directional synchronous fine-tuning fingerprint comparison microscope according to claim 2, characterized in that: A battery (8) is fixedly connected to the upper surface of the top plate (216), and the battery (8) is electrically connected to the electrical equipment of the sliding transmission device of the fingerprint comparison microscope through a wire.

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