Capacitance image recognition and detection device

Abstract

The utility model provides a capacitance image recognition and detection device, which comprises an image processing module, a defect alarm module, a signal conversion module, a capacitance sensing module and an anti-interference mechanism, the anti-interference mechanism comprises an image recognition and detection cabin, and an electromagnetic shielding material layer is fixedly mounted on the outer surface of the image recognition and detection cabin. A heat insulation material layer is fixedly installed on the periphery of the inner wall of the image recognition detection cabin, damping spring shock absorbers are arranged at the two ends of the bottom of the image recognition detection cabin, and the capacitance sensing module is movably installed on the top face of the interior of the image recognition detection cabin through an installation assembly; according to the whole device, the interference caused by electromagnetic interference, temperature change, medium influence and mechanical vibration during detection of the capacitive sensor can be effectively relieved through the design of the anti-interference mechanism, so that the influence on an output signal of the capacitive sensor is greatly reduced, and the accuracy of a detection result is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of detection device technology, specifically a capacitance image recognition detection device. Background Technology

[0002] The principle of a capacitive image recognition detection device is to detect changes in capacitance between an object and the sensor using capacitive sensor technology, thereby achieving image recognition. The capacitive sensor generates electrical signals based on these capacitance changes; by processing and analyzing these signals, image recognition of the object is ultimately achieved.

[0003] Furthermore, capacitive image recognition detection devices have significant advantages in low-light conditions. This is because traditional optical sensors may not function properly in dim light or when the object's surface cannot reflect light, while capacitive image recognition methods are not limited by lighting conditions and can perform image recognition in low-light environments.

[0004] However, certain shortcomings still exist in the detection process and need to be improved. These shortcomings are as follows: In actual detection, capacitive sensors are highly susceptible to interference from various external factors, mainly including: Electromagnetic interference: Capacitive sensors are easily affected by surrounding electromagnetic fields, such as those generated by cables, motors, and lamps, which can all affect the sensor's measurement results; Temperature changes: Capacitive sensors are very sensitive to temperature, and temperature changes can cause changes in the sensor's output signal, thus affecting the accuracy of the measurement; Dielectric influence: Different dielectric constants of the surrounding medium can affect the sensor's capacitance value, thereby affecting the measurement results; Mechanical vibration: Mechanical vibration around the sensor can also affect the sensor's output signal. Therefore, it is necessary to design an improved capacitive image recognition detection device to solve the above-mentioned problems. Utility Model Content

[0005] To overcome the shortcomings of the prior art, this utility model provides a capacitance image recognition and detection device. Through the design of the anti-interference mechanism, the interference caused by electromagnetic interference, temperature changes, medium influence and mechanical vibration on the capacitance sensor can be effectively mitigated, thereby greatly reducing the impact on the output signal of the capacitance sensor and greatly improving the accuracy of the detection results, thus solving the problems mentioned in the background art.

[0006] The present invention adopts the following technical solution.

[0007] A capacitance image recognition detection device includes an image processing module, a defect alarm module, a signal conversion module, a capacitance sensing module, and an anti-interference mechanism. The anti-interference mechanism includes an image recognition detection chamber. An electromagnetic shielding material layer is fixedly installed on the outer surface of the image recognition detection chamber, and a heat insulation material layer is fixedly installed around the inner wall of the image recognition detection chamber. Damping spring shock absorbers are provided at both ends of the bottom of the image recognition detection chamber. The capacitance sensing module is movably installed on the inner top surface of the image recognition detection chamber via a mounting assembly.

[0008] In a preferred embodiment of this utility model, the image processing module, the defect alarm module, the signal conversion module, and the signal conversion module and the capacitance sensing module are all electrically connected via connecting wires.

[0009] As a preferred embodiment of this utility model, the top surface of the image recognition detection chamber is provided with a suitable connecting wire through hole near the capacitive sensing module, and the top and bottom ends of the damping spring shock absorber are respectively fixedly connected to the bottom surface of the image recognition detection chamber and the top surface of the conveying equipment by bolts.

[0010] As a preferred embodiment of this utility model, the electromagnetic shielding material layer is composed of a composite of metallic and magnetic materials, and the thermal insulation material layer is made of a custom-made thermal insulation board.

[0011] As a preferred embodiment of this utility model, the installation assembly is composed of a Z-shaped mounting bracket, an assembly fixed seat, a clamp, and an assembly movable seat. The assembly fixed seat is fixedly connected to the top surface inside the image recognition detection chamber via the Z-shaped mounting bracket. The clamp is movably installed on the side of the assembly fixed seat away from the Z-shaped mounting bracket via the assembly movable seat, and the clamp and the assembly movable seat are fixedly connected.

[0012] As a preferred embodiment of this utility model, the Z-shaped mounting bracket has multiple sets of fixing holes, the clamp has an opening on the side away from the assembly moving seat, and the inner wall of the clamp is covered with an anti-slip material layer.

[0013] As a preferred embodiment of this utility model, the fixed assembly seat is provided with an anti-detachment assembly groove on one side near the moving assembly seat. An anti-detachment assembly slider adapted to the anti-detachment assembly groove is fixedly installed on the side of the moving assembly seat near the fixed assembly seat. A movable slot is provided at the center of one end face of the anti-detachment assembly groove. A positioning spring is movably installed inside the movable slot, and the positioning spring and the movable slot are set at an acute angle.

[0014] The beneficial effects of this utility model are as follows:

[0015] In this invention, the design of the image recognition detection chamber isolates the capacitive sensing module from the external environment, preventing interference from the medium. The electromagnetic shielding material layer shields the electromagnetic fields generated by cables, motors, lamps, and other equipment, reducing interference from these sources. The thermal insulation material layer reduces the impact of external temperature changes. Finally, the damping spring shock absorber prevents mechanical vibration through vibration reduction measures. In summary, the anti-interference mechanism effectively mitigates interference from electromagnetic interference, temperature changes, the medium, and mechanical vibration affecting the capacitive sensor, significantly reducing the impact on the sensor's output signal and greatly improving the accuracy of the detection results, thus solving the problems mentioned in the background art. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the anti-interference mechanism in this utility model;

[0019] Figure 3 This is a schematic diagram of the installation component structure in this utility model. Figure 1 ;

[0020] Figure 4 This is a schematic diagram of the installation component structure in this utility model. Figure 2 ;

[0021] Figure 5 This is a schematic diagram of the assembly moving seat structure in this utility model;

[0022] Figure 6 This is a schematic diagram of the detection system in this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Image processing module; 2. Defect alarm module; 3. Signal conversion module; 4. Capacitive sensing module; 5. Anti-interference mechanism; 51. Image recognition detection chamber; 52. Electromagnetic shielding material layer; 53. Thermal insulation material layer; 54. Damping spring shock absorber; 6. Mounting components; 61. Z-type mounting bracket; 611. Fixing hole; 62. Assembly fixed seat; 621. Anti-detachment assembly slide; 63. Clamp; 631. Opening; 632. Anti-slip material layer; 64. Assembly moving seat; 641. Anti-detachment assembly slider; 642. Movable slot; 643. Positioning spring. Detailed Implementation

[0025] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. To better illustrate this embodiment, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product.

[0026] It will be understood by those skilled in the art that certain well-known structures and their descriptions may be omitted in the accompanying drawings. The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0027] This utility model provides a capacitance image recognition and detection device. Through the design of the anti-interference mechanism, the interference caused by electromagnetic interference, temperature changes, medium influence and mechanical vibration on the capacitance sensor can be effectively mitigated, thereby greatly reducing the impact on the output signal of the capacitance sensor and greatly improving the accuracy of the detection results, so as to solve the problems mentioned in the background art.

[0028] Please see Figures 1-6 This utility model provides a technical solution:

[0029] A capacitance image recognition and detection device includes an image processing module 1, a defect alarm module 2, a signal conversion module 3, a capacitance sensing module 4, and an anti-interference mechanism 5. The image processing module 1, the defect alarm module 2, the signal conversion module 3, and the capacitance sensing module 4 are all electrically connected via connecting wires. The capacitance sensing module 4 detects the position and shape of an object by measuring capacitance changes. The signal conversion module 3 converts the detected capacitance signal into a digital signal. Finally, the image processing module 1 uses an image processing algorithm to analyze and interpret the digital signal to determine the position, shape, and quality of the object. If a defect is found, an electrical signal is sent to the defect alarm module 2, thereby realizing capacitance image recognition and detection.

[0030] The anti-interference mechanism 5 includes an image recognition detection chamber 51. A suitable connecting wire through-hole is provided on the top surface of the image recognition detection chamber 51 near the capacitive sensing module 4. An electromagnetic shielding material layer 52 is fixedly installed on the outer surface of the image recognition detection chamber 51, and a heat insulation material layer 53 is fixedly installed around the inner walls of the image recognition detection chamber 51. Damping spring shock absorbers 54 are installed at both ends of the bottom of the image recognition detection chamber 51. The top and bottom ends of the damping spring shock absorbers 54 are fixedly connected to the bottom surface of the image recognition detection chamber 51 and the top surface of the conveying equipment, respectively, by bolts. The design of the image recognition detection chamber 51 isolates the capacitive sensing module 4 from the external environment. The design of the anti-interference mechanism 5 effectively mitigates interference from electromagnetic interference, temperature changes, media influence, and mechanical vibration in the capacitive sensor, thereby greatly reducing the impact on the sensor's output signal and significantly improving the accuracy of the detection results. Furthermore, the design of the electromagnetic shielding material layer 52 can shield the electromagnetic fields generated by cables, motors, lamps, and other equipment, thus reducing interference from interference sources. The design of the thermal insulation material layer 53 can reduce the impact of external environmental temperature changes. Finally, the design of the damping spring shock absorber 54 can prevent mechanical vibration through shock absorption measures.

[0031] Furthermore, in this embodiment, please refer to Figure 2 The electromagnetic shielding material layer 52 is composed of a composite of metallic and magnetic materials, and the thermal insulation material layer 53 is made of a custom-made thermal insulation board. The electromagnetic shielding material layer 52, which is composed of a composite of metallic and magnetic materials, can effectively reflect both high-frequency and low-frequency electromagnetic waves, resulting in excellent electromagnetic shielding performance.

[0032] The capacitive sensing module 4 is movably mounted on the top surface inside the image recognition detection chamber 51 via the mounting component 6.

[0033] The mounting component 6 is composed of a Z-shaped mounting bracket 61, an assembly fixed seat 62, a clamp 63, and an assembly movable seat 64. The assembly fixed seat 62 is fixedly connected to the top surface inside the image recognition detection chamber 51 through the Z-shaped mounting bracket 61. The clamp 63 is movably mounted on the side of the assembly fixed seat 62 away from the Z-shaped mounting bracket 61 through the assembly movable seat 64. The clamp 63 and the assembly movable seat 64 are fixedly connected. The design of the mounting component 6 facilitates the disassembly and assembly of the capacitive sensing module 4.

[0034] Furthermore, in this embodiment, please refer to Figure 4The Z-shaped mounting bracket 61 has multiple sets of fixing holes 611 through it. The clamp 63 has an opening 631 on the side away from the assembly moving seat 64. The inner wall of the clamp 63 is covered with an anti-slip material layer 632. The design of the Z-shaped mounting bracket 61 and the fixing holes 611 facilitates the fixing with the image recognition detection chamber 51 and the assembly fixed seat 62. The clamp 63 and the opening 631 facilitate the clamping of the capacitive sensing module 4. It can be directly inserted into the inside of the clamp 63 through the opening 631. At the same time, the anti-slip material layer 632 can ensure the stability and reliability of the capacitive sensing module 4 after clamping.

[0035] Furthermore, in this embodiment, please refer to Figure 5 The assembly fixed seat 62 has an anti-detachment assembly groove 621 on one side near the assembly moving seat 64. An anti-detachment assembly slider 641 adapted to the anti-detachment assembly groove 621 is fixedly installed on the side of the assembly moving seat 64 near the assembly fixed seat 62. A movable slot 642 is opened at the center of one end face of the anti-detachment assembly groove 621. A positioning spring 643 is movably installed inside the movable slot 642. The positioning spring 643 and the movable slot 642 are set at an acute angle. The design of the anti-detachment assembly groove 621 and the anti-detachment assembly slider 641 allows the assembly fixed seat 62 and the assembly moving seat 64 to be slidably connected, which facilitates the quick assembly and disassembly of the capacitive sensing module 4. The design of the movable slot 642 and the positioning spring 643 can achieve positioning and maintain the stability and reliability after assembly.

[0036] In this embodiment, the specific implementation scenario is as follows: In actual use, the capacitive sensing module 4 is first assembled by inserting it directly into the fixture 63 through the opening 631. Then, the anti-detachment assembly slider 641 is slid into the anti-detachment assembly groove 621. During the sliding process, the positioning spring 643 begins to deform, and the acute angle between it and the movable groove 642 continuously decreases until the anti-detachment assembly slider 641 can no longer slide. At this point, positioning is achieved under the reaction force of the positioning spring 643. Finally, the top and bottom ends of the damping spring shock absorber 54 are fixedly connected to the bottom surface of the image recognition detection chamber 51 and the top surface of the conveying equipment, respectively, by bolts. The overall detection system is then started. When the workpiece to be tested passes under the action of the capacitance sensing module 4 on the conveying equipment, the capacitance sensing module 4 detects the position and shape of the object by measuring the change in capacitance. The signal conversion module 3 converts the detected capacitance signal into a digital signal. Finally, the image processing module 1 uses an image processing algorithm to analyze and interpret the digital signal to determine the position, shape, and quality of the object. If a defect is found, an electrical signal is sent to the defect alarm module 2. This achieves capacitance image recognition detection. The overall device can greatly reduce the impact on the output signal of the capacitance sensor and greatly improve the accuracy of the detection results.

[0037] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A capacitance image recognition and detection device, comprising an image processing module (1), a defect alarm module (2), a signal conversion module (3), a capacitance sensing module (4), and an anti-interference mechanism (5), characterized in that: The anti-interference mechanism (5) includes an image recognition detection chamber (51), an electromagnetic shielding material layer (52) is fixedly installed on the outer surface of the image recognition detection chamber (51), a heat insulation material layer (53) is fixedly installed around the inner wall of the image recognition detection chamber (51), damping spring shock absorbers (54) are provided at both ends of the bottom of the image recognition detection chamber (51), and the capacitive sensing module (4) is movably installed on the inner top surface of the image recognition detection chamber (51) through the mounting assembly (6).

2. The capacitance image recognition and detection device according to claim 1, characterized in that: The image processing module (1), the defect alarm module (2), the signal conversion module (3), and the signal conversion module (3) and the capacitance sensing module (4) are all electrically connected by connecting wires.

3. The capacitance image recognition and detection device according to claim 1, characterized in that: The top surface of the image recognition detection chamber (51) near the capacitive sensing module (4) has a suitable connecting wire through hole. The top and bottom of the damping spring shock absorber (54) are fixedly connected to the bottom surface of the image recognition detection chamber (51) and the top surface of the conveying equipment by bolts.

4. The capacitance image recognition and detection device according to claim 1, characterized in that: The electromagnetic shielding material layer (52) is composed of a composite of metallic and magnetic materials, and the thermal insulation material layer (53) is made of a custom-made thermal insulation board.

5. The capacitance image recognition and detection device according to claim 1, characterized in that: The mounting assembly (6) is composed of a Z-type mounting bracket (61), an assembly fixed seat (62), a clamp (63), and an assembly movable seat (64). The assembly fixed seat (62) is fixedly connected to the top surface inside the image recognition detection chamber (51) through the Z-type mounting bracket (61). The clamp (63) is movably mounted on the side of the assembly fixed seat (62) away from the Z-type mounting bracket (61) through the assembly movable seat (64), and the clamp (63) and the assembly movable seat (64) are fixedly connected.

6. The capacitance image recognition and detection device according to claim 5, characterized in that: The Z-shaped mounting bracket (61) has multiple sets of fixing holes (611) through it. The clamp (63) has an opening (631) on the side away from the assembly moving seat (64). The inner wall of the clamp (63) is covered with an anti-slip material layer (632).

7. The capacitance image recognition and detection device according to claim 5, characterized in that: The assembly fixed seat (62) has an anti-detachment assembly groove (621) on one side near the assembly moving seat (64). The assembly moving seat (64) has an anti-detachment assembly slider (641) that is compatible with the anti-detachment assembly groove (621) fixedly installed on one side near the assembly fixed seat (62). The anti-detachment assembly slider (641) has a movable slot (642) at the center of one end face near the anti-detachment assembly groove (621). A positioning spring (643) is movably installed inside the movable slot (642), and the positioning spring (643) and the movable slot (642) are set at an acute angle.

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