Detonator code imaging recognition device and recognition method

Abstract

The invention discloses an imaging recognition device for detonator coding, which comprises a closed space for inserting a detonator, and the closed space comprises an insertion side for inserting the detonator, an annular observation side for acquiring an image of the inserted detonator, and a light supplementing side which is arranged relative to the insertion side and is used for supplementing light for the inserted detonator; the insertion side is provided with an insertion hole and a grasping device which is arranged around the insertion hole and adapts to detonators with different diameters, and the grasping device comprises balls surrounding the peripheral side of the insertion hole and an abutting device which extrudes towards the direction of the insertion hole by abutting against the balls; an image acquisition lens group which is inserted around the detonator in a surrounding manner is arranged on the annular observation side and consists of at least six CMOS (Complementary Metal-Oxide-Semiconductor Transistor) lenses which uniformly surround the insertion position of the detonator; the imaging recognition device for detonator coding solves the common technical problems of unstable grasping, unclear imaging, serious light reflection, low recognition precision and the like in detonator coding recognition.

Description

Technical Field

[0001] The invention relates to an imaging recognition device and a recognition method for detonator codes. Background Art

[0002] The imaging and recognition technology of the text (detonator code) on the detonator shell has important applications in the production, inspection and traceability management of detonators. Since the surface of detonators is usually cylindrical or curved, and has certain defects and irregularities, how to efficiently and accurately identify the codes printed on them has always been a technical challenge faced by the industry.

[0003] At present, one of the detonator code identification methods commonly used in the industry is mechanical rotation laser scanning imaging technology. This method gradually scans the surface of the detonator through a rotating laser scanning device to obtain the coded image information on the detonator. However, this method has the following significant disadvantages:

[0004] Complex structure, large size and heavy weight: Mechanical rotary laser scanning systems usually require multiple precision components, such as laser scanners, rotary motors, optical sensors, etc. These components make the overall structure of the equipment very complex, large in size, heavy in weight, and the installation and debugging process requires a lot of manpower and time.

[0005] High energy consumption: Since the system requires the operation of multiple laser modules and rotating devices, its overall power consumption is relatively high, resulting in high energy consumption of the equipment, which is not conducive to field construction operations and poses a potential burden on the long-term stability of the equipment.

[0006] Insufficient imaging quality and recognition rate: Although laser scanning technology can obtain certain image data, it is sensitive to surface quality, reflection conditions, and rotation speed. Under some environmental conditions, the imaging quality of laser scanning cannot reach the ideal level. In addition, the existing recognition algorithms and methods cannot effectively process complex image data, resulting in a one-time complete recognition accuracy rate of only about 90%. This recognition accuracy cannot meet the high requirements of industrial production and traceability management, especially when dealing with surface defects, stains, or irregularly engraved codes, the recognition rate drops significantly to below 80%.

[0007] High cost: Due to the complex structure and high precision of the system, as well as the need for relatively efficient laser scanning technology and high-power consumption support devices, the overall system cost remains high. The cost of the original mechanical rotating laser scanning solution is as high as 5,000 yuan. This high cost constitutes a large economic burden for both manufacturing companies and small and medium-sized enterprises. Summary of the invention

[0008] The purpose of the present invention is to provide an imaging recognition device for detonator codes. By designing a stable gripping device, a multi-angle image acquisition system, a ring-shaped fill light solution, and an efficient image processing module, the present invention solves the common technical problems in detonator code recognition, such as unstable gripping, unclear imaging, insufficient lighting or severe reflection, and low recognition accuracy, thereby providing an effective solution for improving the recognition accuracy and efficiency of detonator codes.

[0009] The technical solution adopted by the present invention to solve its technical problem is:

[0010] A detonator code imaging recognition device comprises a closed space for inserting a detonator, the closed space comprises an insertion side for inserting the detonator, a ring-shaped observation side for collecting an image of the inserted detonator, and a fill light side arranged relative to the insertion side for fill light to the inserted detonator;

[0011] The insertion side is provided with an insertion hole, and a gripping device arranged around the insertion hole to adapt to detonators of different diameters, the gripping device comprising a ball surrounding the insertion hole, and a supporting device for pressing the ball toward the insertion hole;

[0012] The annular observation side is provided with an image acquisition lens group surrounding the inserted detonator, and the image acquisition lens group is composed of at least six CMOS lenses uniformly surrounding the insertion position of the detonator;

[0013] The fill light side is composed of a fill light arranged in a ring shape and used for filling light in the vertical direction of the detonator;

[0014] It also includes a collection lens group for collecting image data and an integrated circuit board for identifying the image data.

[0015] Preferably, the integrated circuit board comprises:

[0016] A detonator insertion judgment module is used to obtain an image from one of the CMOS lenses and judge whether the insertion depth of the detonator reaches a threshold;

[0017] An image acquisition module, used to acquire images around the detonator from six CMOS lenses surrounding the detonator;

[0018] An image cropping module is used to crop the collected image around the detonator;

[0019] A judgment module with character images is used to judge whether there are detonator coding characters in the cropped image;

[0020] A character recognition module, used for recognizing detonator code characters in the cropped image with characters;

[0021] The character integration module supplements, fuses and replaces the character recognition results of two or more images with coded characters to obtain an accurate detonator coding character sequence.

[0022] Preferably, the annular observation side and the fill light side are connected as a whole to form a closed box body, and the insertion side is a box cover detachably mounted on the box body. The outer periphery of the box body and the box cover is provided with a bolt connection seat, and is bolted fixed by the bolt connection seat.

[0023] Preferably, the box body is a dodecagonal box body formed by alternating six long sides and six short sides, the image acquisition lens groups are respectively arranged at the six short sides of the box body, and the image acquisition direction is oriented to form an intersection at the center point of the box body.

[0024] Preferably, the fill light side is located at the bottom of the box body, forming a vertical angle or a nearly vertical angle with the insertion direction of the detonator, and is arranged around the bottom center of the box body. A convex column is provided at the bottom center of the box body for supporting the detonator and forming a horizontal position difference between the bottom of the detonator and the fill light.

[0025] Preferably, an interlayer space is provided in the box cover, the gripping device is provided in the interlayer space, and the interlayer space is provided with a circular clamping hole corresponding to the position of the ball for clamping the ball and making one side of the ball protrude into the insertion hole and the other side remain in the interlayer space.

[0026] Another technical problem to be solved by the present invention is to provide a method for imaging and identifying detonator codes, comprising the following steps:

[0027] The image of one of the CMOS lenses is obtained through the detonator insertion judgment module to determine whether the insertion depth of the detonator reaches the threshold. If the threshold is reached, the six CMOS lenses are activated;

[0028] The image acquisition module collects images around the detonator from six CMOS lenses surrounding the detonator;

[0029] The collected image around the detonator is cropped by an image cropping module;

[0030] A judgment module for the image with characters is used to judge whether there are detonator coding characters in the cropped image;

[0031] Recognize the detonator code characters in the cropped image with characters by a character recognition module;

[0032] The recognition results of more than two character images with detonator codes are supplemented, fused and replaced through the character integration module to obtain an accurate detonator code character sequence. At the same position, characters with higher execution degree are selected and combined into a character sequence for output to obtain the final detonator code character sequence.

[0033] Another technical problem to be solved by the present invention is to provide an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the imaging recognition method of the detonator code as described above is implemented.

[0034] Another technical problem to be solved by the present invention is to provide a computer-readable storage medium on which a computer program is stored, characterized in that when the program is executed by a processor, the imaging recognition method of the detonator code as described above is implemented.

[0035] The beneficial effects of the present invention are:

[0036] By using 6 specially designed CMOS lenses to surround the detonator at close range, it is ensured that only 2 of them can clearly capture the coded characters on the detonator shell. This multi-angle imaging method effectively avoids the recognition blind spot caused by a single viewing angle, significantly improves the capture rate and recognition accuracy of the detonator coded characters, and thus greatly improves the reliability and accuracy of the system.

[0037] The use of vertical annular fill light from a specific position at the bottom of the detonator shell can effectively avoid reflection or reflection of light sources from other directions, and reduce the problem of image blur or distortion caused by uneven lighting. In this way, the coded characters on the detonator shell can be clearly presented under ideal lighting conditions, further improving the quality of image acquisition and recognition accuracy.

[0038] Since the detonator shells come in different sizes, a gripping device that can adapt to the size of different detonator shells is used to ensure that detonators of different sizes can be stably gripped and inserted vertically into the device. This design avoids the problems that may be caused by traditional glass tubes or rubber tubes, especially avoiding the interference of dust accumulation on the tube wall or detonator shell on the imaging of the coded characters. Through this innovation, the cleanliness of the imaging process is guaranteed, avoiding dust and debris from affecting the image quality, thereby reducing the probability of misrecognition. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 A stereoscopic diagram of the overall structure of an imaging identification device for detonator coding of the present invention;

[0040] Figure 2 A schematic diagram of the box cover structure of a detonator coding imaging recognition device of the present invention;

[0041] Figure 3 The present invention is a schematic diagram of the box structure of a detonator-coded imaging recognition device. Specific implementation methods

[0043] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention. The present invention is described in more detail by way of example with reference to the accompanying drawings in the following paragraphs. The advantages and features of the present invention will become clearer according to the following description and claims. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0044] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, it should be noted that, unless otherwise clearly specified and defined, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items. Example

[0046] See also Figure 1-3 As shown, a detonator code imaging recognition device comprises a closed space 1 for inserting a detonator, the closed space 1 comprises an insertion side 11 for inserting the detonator, a ring-shaped observation side 12 for collecting an image of the inserted detonator, and a supplementary light side 13 arranged relative to the insertion side 11 for supplementary light to the inserted detonator;

[0047] The insertion side 11 is provided with an insertion hole 111, and a gripping device 112 arranged around the insertion hole 111 to adapt to detonators of different diameters. The gripping device 112 includes a ball 1121 surrounding the insertion hole 111, and a supporting device 1122 that presses the ball 1121 toward the insertion hole 111.

[0048] The annular observation side 12 is provided with an image acquisition lens group 121 surrounding the inserted detonator, and the image acquisition lens group 121 is composed of at least six CMOS lenses 122 uniformly surrounding the insertion position of the detonator;

[0049] The fill light side 13 is composed of a fill light 131 arranged in a ring shape and used to fill light in the vertical direction of the detonator;

[0050] It also includes an integrated circuit board for collecting image data from the image acquisition lens group 121 and identifying the image data.

[0051] The image acquisition lens group 121 uses six CMOS lenses 122 to evenly surround the detonator, which can clearly capture the detonator code from multiple angles. This multi-lens design effectively avoids the blind spot problem caused by a single viewing angle, ensuring that the coded characters can be clearly identified in all directions and improving the recognition accuracy; the gripping device 112 is composed of a supporting device 1122 and a ball 1121, and can automatically adjust its gripping force according to detonators of different diameters, ensuring that detonators of various sizes can be stably and accurately inserted into the device. Compared with the traditional fixed size design, this flexible and adaptive approach greatly enhances the versatility and adaptability of the device.

[0052] The annular fill light 131 is used to fill the detonator in the vertical direction, which can avoid reflection and interference from light sources in other directions and ensure that there is no reflection or shadow during the imaging process. This fill light method can effectively improve the imaging quality, reduce image blur caused by uneven light, and further improve the accuracy of image recognition.

[0053] The circuit chip integrated in the device is responsible for collecting and processing the image data collected by the CMOS lens 122, and identifying the image through advanced image processing algorithms. The use of such an integrated circuit can speed up data processing, improve real-time performance, and enhance the stability and reliability of the system, ensuring that the detonator code can still be accurately identified in complex environments.

[0054] The automated design of the entire device makes the insertion, gripping, imaging and identification of detonators simpler and more efficient. Through mechanized and automated operations, manual intervention and errors are reduced, and production efficiency and operational safety are improved; the overall design is compact, and multiple functions (gripping, imaging, fill light, data identification) are integrated in one device, which helps to reduce the size of the equipment, facilitates installation and maintenance, and is suitable for different working environments, especially in places with limited space.

[0055] The integrated circuit board includes:

[0056] A detonator insertion judgment module is used to obtain an image from one of the CMOS lenses and judge whether the insertion depth of the detonator reaches a threshold;

[0057] An image acquisition module, used to acquire images around the detonator from six CMOS lenses surrounding the detonator;

[0058] An image cropping module is used to crop the collected image around the detonator;

[0059] A judgment module with character images is used to judge whether there are detonator coding characters in the cropped image;

[0060] A character recognition module, used for recognizing detonator code characters in the cropped image with characters;

[0061] The character integration module supplements, fuses and replaces the image character recognition results of two of the coded characters to obtain the accurate detonator coding character sequence.

[0062] Through the detonator insertion judgment module, the image analysis of the CMOS lens can accurately determine whether the detonator is inserted deep enough. This helps to ensure that the system starts image acquisition in the correct state and avoids inaccurate image processing or misidentification. Through the image acquisition module, 6 CMOS lenses surrounding the detonator are used to simultaneously collect images around the detonator from different angles, ensuring comprehensive and sufficient image data acquisition. This multi-angle acquisition method improves recognition accuracy, reduces angle blind spots, and can effectively identify coded characters in different positions.

[0063] The image cropping module crops the collected images around the detonator, removes the area determined to have no detonator coding characters, and reduces the amount of image data. This not only improves the efficiency of subsequent image processing, but also reduces the demand for hardware resources (such as processors, storage space, etc.); the judgment module of the image with characters can effectively filter out the images with detonator coding characters in the cropped image to avoid invalid recognition. Combined with the character recognition module, it can quickly and accurately extract and identify the detonator coding information, ensuring the efficiency and reliability of the recognition results.

[0064] Through the character integration module, the image recognition results of two of the coded characters are supplemented, fused and replaced. This method of integrating multiple image results can improve the accuracy of the final recognition results, eliminate the impact of single recognition errors, and ensure that the final output detonator coding character sequence is more accurate; combined with the functions of the above modules, the entire solution effectively reduces the demand for hardware resources (such as computing power and storage space), and at the same time, through multi-angle image acquisition, cropping and fusion recognition results, it minimizes the errors caused by image quality or environmental factors and improves the robustness of the system.

[0065] The annular observation side 12 and the fill light side 13 are connected as a whole to form a closed box body, and the insertion side 11 is a box cover detachably mounted on the box body. A bolt connection seat 14 is provided on the periphery of the box body and the box cover, and is fixed by bolts through the bolt connection seat 14.

[0066] Since the box cover is removable and fixed by bolt connection seat 14, it can be easily maintained and replaced. This means that when the device fails or needs to be upgraded, the user can quickly remove the box cover and check or replace the internal components (such as the light source or the observation side) without disassembling the entire device. This design greatly reduces maintenance costs and time.

[0067] The box body and the box cover are tightly fixed by the bolt connection seat 14, which can ensure that the structure of the device is more stable and prevent the components from loosening or being damaged due to vibration or external force interference. In addition, the bolt connection method also helps to provide good sealing, prevent dust, moisture or other external factors from entering the interior, and ensure long-term stable operation of the device.

[0068] The detachable design makes the assembly and disassembly process easier and more efficient. Users can quickly remove the box cover to conduct internal inspection or replace parts without destroying the overall structure. This can significantly improve work efficiency, reduce downtime, and improve the overall reliability and maintainability of the equipment for application scenarios that require frequent replacement of accessories or product debugging.

[0069] The box body is a dodecagonal box body formed by alternating six long sides and six short sides. The image acquisition lens group 121 is respectively arranged at the six short sides of the box body, and the image acquisition direction is oriented to form an intersection at the center point of the box body.

[0070] Since the image acquisition lens group 121 is respectively arranged on the six short sides of the box body and intersects toward the center point, the acquisition directions of each lens intersect with each other, effectively expanding the viewing angle range. Such a design can ensure that image data is collected from multiple different angles at the same time, providing a more comprehensive field of view, helping to capture more details, reducing blind spots or omissions, and is particularly effective in application scenarios that require panoramic monitoring or high-precision image acquisition.

[0071] The dodecagonal box design can accommodate multiple lens groups more compactly without taking up too much space. Compared with traditional round or square boxes, the dodecagonal layout provides more corner positions for the reasonable configuration of lenses, making space utilization more optimized, especially suitable for equipment or environments with limited space. This design can also make the device itself easier to integrate into complex systems, improving the integration of products.

[0072] The image acquisition lens group 121 is arranged at the short side of the box body and the lenses converge toward the center, which can effectively reduce lens distortion, especially in the edge area. This angle configuration helps to balance the parallax between different lenses, thereby improving the overall image quality, avoiding the distortion, chromatic aberration or distortion problems caused by improper lens position in traditional designs, making the collected images clearer and more accurate, suitable for high-precision image processing and analysis.

[0073] The fill light side 13 is located at the bottom of the box body and is arranged around the bottom center of the box body. A convex column 132 is arranged at the bottom center of the box body to support the detonator and form a horizontal position difference between the bottom of the detonator and the fill light 131.

[0074] The fill light 131 is arranged around the bottom center of the box body, which can evenly provide lighting for the detonator and reduce the unevenness or blind spots of the light source. By maintaining a certain horizontal position difference between the fill light 131 and the detonator (through the setting of the convex column 132), it is avoided that the light directly irradiates the bottom of the detonator, reducing the problem of reflection or excessive lighting, ensuring that the fill light 131 can effectively supplement the lighting without causing excessive influence or interference on the detonator.

[0075] The design of the protruding column 132 can firmly fix the detonator in the appropriate position and ensure that the bottom of the detonator maintains a horizontal position difference with the fill light 131, which can effectively prevent the detonator from being displaced or unstable due to external vibration or operation. In this way, the safety and stability of the detonator during operation can be guaranteed to the greatest extent, and the potential risks caused by improper position or the fill light 131 being too close to the bottom of the detonator can be reduced.

[0076] By maintaining a certain horizontal position difference between the bottom of the detonator and the fill light 131 through the convex column 132, the heat of the fill light 131 can be effectively prevented from directly accumulating at the bottom of the detonator, thereby reducing the risk of equipment damage or detonator failure caused by overheating. At the same time, this design helps to evenly distribute heat, prevent local overheating, and help extend the service life of the fill light 131, the detonator and the entire equipment.

[0077] An interlayer space 113 is provided in the box cover, and the gripping device 112 is provided in the interlayer space 113. The interlayer space 113 is provided with a circular clamping hole 114 corresponding to the position of the ball 1121, which is used to clamp the ball 1121 and make one side of the ball 1121 protrude into the insertion hole 111 and the other side remain in the interlayer space 113.

[0078] The circular clamping hole 114 is designed to effectively clamp one side of the ball 1121, so that it is firmly held in the interlayer space 113, while the other side protrudes into the insertion hole 111. This design can effectively prevent the ball 1121 from loosening or falling off during use, ensure that the ball 1121 is always in the correct position, reduce mechanical failures or performance degradation caused by displacement or failure of the ball 1121, and improve the stability and reliability of the system.

[0079] Through the cooperation of the interlayer space 113 and the clamping hole, the ball 1121 can be automatically kept in the desired position without the need for additional fixing tools. This simplifies the assembly process, reduces the need for precise adjustment of the ball 1121 during assembly, and improves production efficiency. In addition, the interlayer space 113 in the design can play a protective role, preventing the ball 1121 from falling off or being damaged due to external forces during the assembly process, further optimizing the convenience of operation.

[0080] One side of the ball 1121 is stuck, and the other side is kept in the interlayer space 113, which helps to avoid direct friction or excessive contact between the ball 1121 and the external structure, and reduces the wear of the ball 1121 during operation.

[0081] A method for imaging and identifying detonator codes comprises the following steps:

[0082] The image of one of the CMOS lenses is obtained through the detonator insertion judgment module to determine whether the insertion depth of the detonator reaches the threshold. If the threshold is reached, the six CMOS lenses are activated;

[0083] The image acquisition module collects images around the detonator from six CMOS lenses surrounding the detonator;

[0084] The collected image around the detonator is cropped by an image cropping module;

[0085] A judgment module for the image with characters is used to judge whether there are detonator coding characters in the cropped image;

[0086] Recognize the detonator code characters in the cropped image with characters by a character recognition module;

[0087] The recognition results of two character images with detonator codes are supplemented, fused and replaced by the character integration module to obtain an accurate detonator code character sequence. At the same position, characters with higher execution degree are selected and combined into a character sequence for output to obtain the final detonator code character sequence.

[0088] By acquiring an image from a CMOS lens through the detonator insertion judgment module, the system can determine whether the insertion depth of the detonator has reached a predetermined threshold. This ensures that the image acquisition process is started at the right time and avoids misjudgment or invalid image acquisition. This can improve the efficiency and accuracy of the entire system and ensure the accuracy of detonator code recognition; the image acquisition module uses 6 CMOS lenses surrounding the detonator to collect images around the detonator, which can fully cover the field of view around the detonator from multiple angles. This multi-angle acquisition method effectively avoids the blind spots that may be caused by a single perspective and improves the recognition rate of detonator code characters.

[0089] The collected image is cropped through the image cropping module, retaining only the part related to the detonator code and removing irrelevant background. This not only reduces the amount of data for image processing, but also improves the speed of subsequent recognition processing and reduces the consumption of computing resources; the judgment module with character images can ensure that only the part containing the detonator code characters in the cropped image is sent to subsequent processing. Then, the character recognition module identifies the detonator code characters in the image. This process greatly reduces the probability of misrecognition and ensures the correct recognition of each character.

[0090] Through the character integration module, this method can supplement, fuse and replace the detonator code character recognition results from multiple images. At the same position, the system will select characters with higher execution and finally synthesize a more accurate detonator code character sequence. This multi-source data fusion method can effectively reduce the errors caused by single image recognition errors or poor image quality, and improve the robustness of the entire system; finally, the recognized and integrated code characters will be combined into a complete character sequence as the unique identification output of the detonator. This automated process reduces manual intervention, improves the system's processing speed and work efficiency, and is suitable for efficient and high-precision industrial applications.

[0091] Through multi-angle acquisition and image fusion technology, even if the image quality at a certain angle is poor or some coded characters cannot be recognized, the system can still rely on images and character integration modules from other angles to make up for the omissions or errors in the recognition process and provide more stable results; this solution can be adjusted according to the needs of different types of detonators and different application scenarios. The system can optimize the working mode of each module according to actual needs, making the entire recognition method highly flexible and adaptable, and suitable for a variety of different detonator coding situations.

[0092] This embodiment also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the imaging recognition method of detonator codes as described above when executing the program.

[0093] This embodiment also provides a computer-readable storage medium on which a computer program is stored. When the program is executed by a processor, the imaging recognition method of the detonator code as described above is implemented.

[0094] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided in this application can include non-volatile and / or volatile memory. Non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory may include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM). Those skilled in the art will clearly understand that for the sake of convenience and brevity of description, only the division of the above-mentioned functional units and modules is used as an example. In actual applications, the above-mentioned functions can be distributed and completed by different functional units and modules as needed, that is, the internal structure of the system can be divided into different functional units or modules to complete all or part of the functions described above.

[0095] The above embodiments of the present invention are not intended to limit the protection scope of the present invention, and the implementation modes of the present invention are not limited thereto. All other modifications, replacements or changes made to the above structures of the present invention based on the above contents of the present invention, in accordance with common technical knowledge and customary means in the art, without departing from the above basic technical ideas of the present invention, should fall within the protection scope of the present invention.

Claims

1. A detonator code imaging recognition device, characterized in that: The device comprises a closed space for inserting a detonator, the closed space comprising an insertion side for inserting the detonator, a ring-shaped observation side for collecting an image of the inserted detonator, and a supplementary light side arranged relative to the insertion side for supplementary light to the inserted detonator; The insertion side is provided with an insertion hole, and a gripping device arranged around the insertion hole to adapt to detonators of different diameters, the gripping device comprising a ball surrounding the insertion hole, and a supporting device for pressing the ball toward the insertion hole; The annular observation side is provided with an image acquisition lens group surrounding the inserted detonator, and the image acquisition lens group is composed of at least six CMOS lenses uniformly surrounding the insertion position of the detonator; The fill light side is composed of a fill light arranged in a ring shape and used for filling light in the vertical direction of the detonator; It also includes a lens group for collecting image data on the surface of the detonator shell and an integrated circuit board for identifying the image data.

2. The imaging recognition device for detonator codes according to claim 1, characterized in that: The integrated circuit board includes: A detonator insertion judgment module is used to obtain an image from one of the CMOS lenses and judge whether the insertion depth of the detonator reaches a threshold; An image acquisition module, used to acquire images around the detonator from six CMOS lenses surrounding the detonator; An image cropping module is used to crop the collected image around the detonator; A judgment module with character images is used to judge whether there are detonator coding characters in the cropped image; A character recognition module, used for recognizing detonator code characters in the cropped image with characters; The character integration module supplements, fuses and replaces the character recognition results of two or more images with coded characters to obtain an accurate detonator coding character sequence.

3. The imaging recognition device for detonator codes according to claim 1, characterized in that: The annular observation side and the fill light side are connected as a whole to form a closed box body, and the insertion side is a box cover detachably mounted on the box body. The outer periphery of the box body and the box cover is provided with a bolt connection seat, and bolt fixing is formed through the bolt connection seat.

4. The imaging recognition device for detonator codes according to claim 1, characterized in that: The box body is a dodecagonal box body formed by alternating six long sides and six short sides. The image acquisition lens groups are respectively arranged at the six short sides of the box body, and the image acquisition direction is oriented to form an intersection at the center point of the box body.

5. The imaging recognition device for detonator codes according to claim 1, characterized in that: The fill light side is located at the bottom of the box body and is arranged around the bottom center of the box body. The bottom center of the box body is provided with a convex column for supporting the detonator and forming a horizontal position difference between the bottom of the detonator and the fill light.

6. The imaging recognition device for detonator codes according to claim 1, characterized in that: The box cover is provided with an interlayer space, the gripping device is provided in the interlayer space, and the interlayer space is provided with a circular clamping hole corresponding to the position of the ball for clamping the ball and making one side of the ball protrude into the insertion hole and the other side remain in the interlayer space.

7. A method for imaging and identifying detonator codes, characterized in that: The following steps are involved: The image of one of the CMOS lenses is obtained through the detonator insertion judgment module to determine whether the insertion depth of the detonator reaches the threshold. If the threshold is reached, the six CMOS lenses are activated; The image acquisition module collects images around the detonator from six CMOS lenses surrounding the detonator; The collected image around the detonator is cropped by an image cropping module; A judgment module for the image with characters is used to judge whether there are detonator coding characters in the cropped image; Recognize the detonator code characters in the cropped image with characters by a character recognition module; The recognition results of more than two character images with detonator codes are supplemented, fused and replaced through the character integration module to obtain an accurate detonator code character sequence. At the same position, characters with higher execution degree are selected and combined into a character sequence for output to obtain the final detonator code character sequence.

8. An electronic device, characterized in that: The method comprises a memory, a processor and a computer program stored in the memory and executable on the processor. When the processor executes the program, the imaging recognition method of the detonator code as claimed in claim 7 is implemented.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the imaging recognition method of the detonator code as claimed in claim 7 is implemented.

Images