Database-based data monitoring device and method

Abstract

The invention relates to the technical field of data monitoring, in particular to a data monitoring device and method based on a database, and the device comprises a camera body, a supporting block, a positioning block, a mounting frame, and a focal length adjusting mechanism. According to the invention, the following problems in the data monitoring process in the prior art can be solved: the use scene is limited and the data in the database cannot be monitored in real time due to the fact that the photographed portrait cannot be transmitted to the database for comparison; tracking shooting cannot be carried out, so that the situation that identification is influenced by unclear shot images or poor shooting angles possibly exists; according to the invention, the camera body is used for monitoring the monitoring area in real time, the shot image can be transmitted to the database in real time for data comparison, and then the comparison result is transmitted to the controller for data real-time monitoring; according to the invention, the camera body can be controlled to track and shoot strangers with stored information in the database and transmit portrait information of the strangers to the database.

Description

Technical Field

[0001] This invention relates to the field of data monitoring technology, and in particular to a database-based data monitoring device and method. Background Technology

[0002] With the rapid development of technology, surveillance images from cameras can also be transmitted to databases in real time. The surveillance images can then be compared with the database, and artificial intelligence and image analysis algorithms can be used to compare the surveillance images with images in internal or external databases. This enables the accurate identification and tracking of specific targets, which not only helps improve the security of the surveillance system but also provides more efficient monitoring and maintenance.

[0003] In the prior art, a large amount of monitoring data and corresponding devices have been disclosed, but most of them use software monitoring, which is prone to vulnerabilities and affects the security of monitoring. Based on this, the prior art provides technical solutions to solve the above problems. For a more accurate comparison, Chinese patent with publication number CN205656612U discloses a database monitoring device.

[0004] The database monitoring device includes a mounting bracket. A human body detection sensor and a camera are mounted on the front end of the mounting bracket. The controller, alarm, and memory are all installed inside the mounting bracket. The human body detection sensor and the camera are connected to the input terminal of the controller. The output terminal of the controller is connected to the alarm and the memory, respectively. The output terminal of the power adapter is connected to one end of the relay coil. The other end of the relay coil is connected to the power terminal of the controller and the charging terminal of the battery, respectively. The discharging terminal of the battery is connected to one end of the normally closed contact of the relay. The other end of the normally closed contact of the relay is connected to one end of the buzzer. The other end of the buzzer is connected to the power terminal of the controller.

[0005] In use, the aforementioned existing technology achieves quick fixation through a mounting bracket. At the same time, the human body detection sensor and camera realize human body detection and shooting. When a human body is detected, the controller controls the alarm to realize wireless alarm. When the power adapter is de-energized, the battery provides power. At this time, the coil of relay KM1 is de-energized, the normally closed contact KM1-1 of relay KM1 closes, and the buzzer provides an alert.

[0006] However, the existing technologies mentioned above still have the following shortcomings in the data monitoring process: 1. Since the database requires regular maintenance by designated personnel, and in order to facilitate database maintenance, the facial features of designated personnel need to be stored in the database for quick access. However, the cameras in the existing technology mentioned above cannot transmit the images they capture to the database for comparison. Therefore, when maintenance personnel enter the database, the camera will still be triggered to capture images and the alarm will still be triggered wirelessly, which limits the application scenarios and makes it impossible to achieve real-time monitoring of the data in the database.

[0007] 2. Furthermore, since the aforementioned existing technology can only trigger the camera to take pictures when a human body is detected, it cannot monitor the monitored area in real time, and it cannot zoom in and track the person when a human image is captured. As a result, there may be situations where the captured image is unclear or the shooting angle is poor, affecting identification.

[0008] Therefore, based on the above-stated viewpoints, there is still room for improvement in existing data monitoring methods. Summary of the Invention

[0009] To address the aforementioned issues, this invention provides a database-based data monitoring device, comprising a camera body, a fixing ring sleeved on the outer wall of the camera body away from the shooting end, a support block movably mounted on the lower end of the fixing ring, a positioning block movably mounted on the side of the support block away from the shooting end of the camera body, a mounting bracket at the bottom of the positioning block, and a focus adjustment mechanism for adjusting the shooting distance mounted on the side of the outer wall of the camera body close to the shooting end.

[0010] Preferably, the support block has a positioning groove inside, a drive motor is installed in the positioning groove, the output shaft of the drive motor is connected to the bottom of the fixed ring, an annular cylinder is installed at the lower end of the fixed ring, an annular groove is opened at the upper end of the support block, and the lower end of the annular cylinder is rotatably set in the annular groove.

[0011] Preferably, a controller is installed on the lower side of the positioning block via a mounting slot, and a data transmission device is installed on the upper side of the positioning block via a connecting slot. The controller and the data transmission device are electrically connected via a first wire, and the controller and the drive motor are electrically connected via a second wire.

[0012] Preferably, the support block and the positioning block are respectively provided with mounting base and fixing base on opposite sides, and the mounting base is provided with a through groove at the end away from the support block and is rotatably connected to the fixing base through a linkage pin.

[0013] Preferably, two crossbars are symmetrically arranged along the through groove at the lower end of the mounting base, and a sliding groove parallel to its length direction is opened at the lower end of the crossbars, with a receiving block slidably arranged inside the sliding groove; Two supports are symmetrically arranged along the fixed seat on the side of the positioning block near the support block. The supports are located below the cross frame and correspond to its position. A telescopic cylinder is hinged between the support and the receiving block on the same side of the mounting seat, and the telescopic cylinder and the controller are electrically connected.

[0014] Preferably, the inner wall of the through groove is provided with a plurality of annularly distributed grooves along the linkage pin. The fixing seat is provided with a plurality of receiving grooves corresponding to the positions of the grooves on both sides of the through groove. The inner wall of the receiving groove is provided with a contact block installed by a top extension spring rod. The end of the contact block away from the top extension spring rod slides against the groove.

[0015] Preferably, the focus adjustment mechanism includes a sleeve that is movably fitted onto the shooting end of the camera body, a lens for adjusting the shooting focus of the camera body is movably disposed inside the sleeve, and a glass cover is installed on the inner wall of the sleeve on the side away from the camera body.

[0016] Preferably, a ring-shaped conductive coil is installed inside the sleeve on the side away from the camera body, and multiple ring-shaped supplementary lights are installed at the end of the sleeve away from the camera body. The supplementary lights are electrically connected to the ring-shaped conductive coil, and the ring-shaped conductive coil is electrically connected to the controller.

[0017] In addition, the present invention also provides a database-based data monitoring method, comprising the following steps: S1: Real-time monitoring: The camera itself monitors the monitored area in real time; S2: Data comparison: When a stranger enters the shooting area of ​​the camera body, the controller controls the data transmission device to upload the captured image to the database for comparison. If the captured stranger is a criminal and is uploaded to the network by the public security department, the controller controls the data transmission device to transmit the captured data of the criminal to the public security department. S3: Data Recording: If the stranger's data information is not saved in the database, the controller will control the camera to track and photograph the stranger and transmit his image information to the database. S4: Tracking Shooting: When a stranger appears in the shooting area of ​​the camera body, the camera body's shooting focus is adjusted by the controller to track and shoot the stranger.

[0018] In summary, this application includes at least one of the following beneficial technical effects: I. This invention uses a camera body to monitor its monitoring area in real time. During this process, the images captured by the camera body can be transmitted to the database in real time for data comparison, and the comparison results can be transmitted to the controller for real-time data monitoring. When a stranger enters the shooting area of ​​the camera body and the database does not store the stranger's data information, the controller can control the camera body to track and capture the stranger and transmit his / her image information to the database.

[0019] Second, this invention can control the camera body to track and capture images of strangers when they appear in the shooting area, and zoom in on the target's image. This allows the camera to capture the target's facial and body features and upload the captured images to a database via a data transmission device, thereby achieving data monitoring. In addition, when the stranger is a criminal and the image is uploaded to the network by the public security department, the controller controls the data transmission device to transmit the criminal's image data to the public security department, thereby reducing the adverse effects caused by the criminal.

[0020] Third, this invention drives the fixed ring and the camera body to rotate horizontally as a whole by a drive motor, and drives the receiving block to move in the sliding groove by a telescopic cylinder, so that the mounting base drives the support block to rotate upward or downward along the linkage pin, and then the support block drives the camera body to rotate synchronously. In this way, the horizontal and vertical rotation of the camera body can be controlled, thereby realizing the all-round adjustment of the camera body, and can adaptively adjust and track the movement of strangers.

[0021] Fourth, this invention can adjust the focal length of the camera body by controlling the distance between the lens and the camera body lens, thereby magnifying or reducing the captured image, and then uploading the captured clear image to the database; in addition, the supplementary light can illuminate the shooting area of ​​the camera body during night monitoring, thereby further improving its shooting clarity. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Figure 1 This is a first structural schematic diagram of the present invention.

[0024] Figure 2 This is a schematic diagram of the second structure of the present invention.

[0025] Figure 3 This is a schematic diagram of the internal structure of the support block and positioning block of the present invention.

[0026] Figure 4 This is a structural diagram of the mounting base, fixing base, and linkage pin of the present invention.

[0027] Figure 5 This is the present invention. Figure 4A magnified view of part A.

[0028] Figure 6 This is a first structural schematic diagram of the focal length adjustment mechanism of the present invention.

[0029] Figure 7 This is a schematic diagram of the internal structure of the mounting base and fixing base of the present invention.

[0030] Figure 8 This is the present invention. Figure 7 A magnified view of section B.

[0031] Figure 9 This is a schematic diagram of the second structure of the focal length adjustment mechanism of the present invention.

[0032] Figure 10 This is the present invention. Figure 9 A magnified view of a portion of point C.

[0033] In the diagram, 1. Camera body; 2. Fixing ring; 3. Support block; 31. Drive motor; 32. Annular cylinder; 4. Positioning block; 41. Controller; 42. Data transmission device; 43. First wire; 44. Second wire; 45. Mounting base; 46. Fixing base; 47. Linkage pin; 48. Cross frame; 49. Sliding groove; 50. Receiving block; 51. Support; 52. Telescopic cylinder; 53. Receiving groove; 54. Top extension spring rod; 55. Abutment block; 6. Mounting frame; 7. Focus adjustment mechanism; 71. Sleeve; 711. Annular conductive coil; 712. Fill light; 72. Lens; 73. Glass cover; 74. Limiting groove; 75. Adjusting block; 76. Guide post; 77. Annular frame; 78. Annular gear ring; 79. Gear; 80. Adjusting motor; 81. Third wire. Detailed Implementation

[0034] The following is in conjunction with the appendix Figures 1-10 The embodiments of the present invention will be described in detail, but the present invention may be implemented in many different ways as defined and covered by the claims.

[0035] This application discloses a database-based data monitoring device. Specifically, this device is primarily used to convert camera footage into data and upload it to a database. Technically, it enables real-time monitoring of the monitored area via the camera itself. During this process, the camera's captured images are transmitted to the database for comparison, and the comparison results are then transmitted to a controller for real-time data monitoring. Particularly during the camera's capture process, when a stranger appears in the area, the device can control the camera to track and capture them, adjusting the camera's focus to magnify the target's image. This allows for the capture of the target's facial and physical features, which are then uploaded to the database via a data transmission device, thus achieving data monitoring. Furthermore, if the stranger in the area is a criminal and the data is uploaded to the network by the public security department, the device can control the data transmission device to transmit the criminal's data to the public security department, thereby reducing the negative impact of the criminal activity.

[0036] Example 1: Reference Figure 1 As shown, a database-based data monitoring device includes a camera body 1. A fixing ring 2 is fitted on the outer wall of the camera body 1 away from the shooting end. A support block 3 is movably installed at the lower end of the fixing ring 2. A positioning block 4 is movably arranged on the side of the support block 3 away from the shooting end of the camera body 1. A mounting bracket 6 is provided at the bottom of the positioning block 4. A focal length adjustment mechanism 7 for adjusting its shooting distance is installed on the outer wall of the camera body 1 near the shooting end. The shooting distance of the camera body 1 can be adjusted through the focal length adjustment mechanism 7 so as to adjust its captured image according to actual needs.

[0037] Reference Figure 2 As shown, in order to monitor the images captured by the camera body 1, the images captured by the camera body 1 need to be transmitted to the database in real time for comparison. In this embodiment, a controller 41 is installed on the lower side of the positioning block 4 through an installation slot, and a data transmission device 42 is installed on the upper side of the positioning block 4 through a connection slot. The controller 41 and the data transmission device 42 are electrically connected through a first wire 43.

[0038] In the specific implementation process, the camera body 1 monitors its monitoring area in real time. During this time, the data transmission device 42 can transmit the images captured by the camera body 1 to the database in real time for data comparison, and then transmit the comparison results to the controller 41 for real-time data monitoring. When a stranger enters the shooting area of ​​the camera body 1, and the database does not have the stranger's data information, the controller 41 will control the camera body 1 to track and shoot the stranger and transmit his / her image information to the database. If the stranger is a criminal uploaded to the network by the public security department, the controller 41 will control the data transmission device 42 to transmit the criminal's shooting data to the public security department.

[0039] It should be noted that the controller 41 used in this embodiment is a PLC controller 41 in the prior art, which is mainly used to control the images captured by the camera body 1 to be transmitted to the database for comparison through the data transmission device 42, and to adjust the shooting angle of the camera body 1; in addition, the data transmission device 42 in this embodiment is also the prior art, which is mainly used to upload the images captured by the camera body 1 to the database and transmit the comparison results to the controller 41 for data monitoring.

[0040] Furthermore, the controller 41 in this embodiment is equipped with a tracking and shooting system (not shown in the figure). When a stranger appears in the shooting area of ​​the camera body 1, the controller 41 can control the camera body 1 to perform adaptive rotation adjustment, thereby increasing its shooting range and enabling it to track and shoot the stranger.

[0041] Reference Figure 3 As shown, since pedestrians in the shooting area of ​​the camera body 1 are constantly moving, in order to facilitate the camera body 1 to track and shoot the images of people in the shooting area, it is necessary to control the camera body 1 to rotate according to the movement of pedestrians. Specifically, in this embodiment, a positioning groove is provided inside the support block 3, and a drive motor 31 is installed in the positioning groove. The controller 41 and the drive motor 31 are electrically connected through a second wire 44. The output shaft at the upper end of the drive motor 31 is connected to the bottom of the fixed ring 2. An annular cylinder 32 is installed at the lower end of the fixed ring 2. An annular groove is provided at the upper end of the support block 3, and the lower end of the annular cylinder 32 is rotatably set in the annular groove. The annular cylinder 32 can support the fixed ring 2 and the camera body 1, and ensure that the camera body 1 can rotate horizontally.

[0042] During the horizontal rotation of the camera body 1, when a stranger enters the shooting area of ​​the camera body 1, the controller 41 controls the drive motor 31 to start and drive the fixing ring 2 and the camera body 1 to rotate horizontally as a whole, so as to make adaptive adjustments according to the walking direction of the stranger in the shooting area.

[0043] Reference Figure 4 and Figure 5 As shown, since the camera body 1 needs to rotate not only horizontally but also vertically when it adaptively adjusts according to the walking direction of strangers, this embodiment provides a technical solution for adjusting the camera body 1 vertically while adjusting it horizontally. Specifically, the support block 3 and the positioning block 4 are respectively provided with a mounting base 45 and a fixing base 46 on opposite sides. The mounting base 45 has a through groove at the end away from the support block 3 and is rotatably connected to the fixing base 46 through a linkage pin 47. Two crossbars 48 are symmetrically arranged along the through groove at the lower end of the mounting base 45. The lower end of the crossbar 48 has a sliding groove 49 parallel to its length direction. A receiving block 50 is slidably arranged inside the sliding groove 49.

[0044] Furthermore, in this embodiment, two supports 51 are symmetrically arranged along the fixed seat 46 on the side of the positioning block 4 near the support block 3. The supports 51 are located below the cross frame 48 and correspond to its position. A telescopic cylinder 52 is hinged between the supports 51 and the receiving block 50 on the same side of the mounting seat 45. Since the angle between the receiving block 50 and the supports 51 changes when the receiving block 50 moves along the sliding groove 49, the telescopic cylinder 52 can be adaptively tilted by the hinge. The telescopic cylinder 52 and the controller 41 are electrically connected.

[0045] In this embodiment, the positioning block 4 always remains vertical, and the support block 3 is also vertical in the initial state. At this time, the camera body 1 at the upper end of the support block 3 is horizontal. In addition, the cross-sections of the sliding groove 49 and the receiving block 50 are both inverted convex structures to ensure that the receiving block 50 will not fall out of the sliding groove 49.

[0046] When controlling the camera body 1 to rotate up and down, the controller 41 controls the telescopic cylinder 52 to start and drive the receiving block 50 to move in the sliding groove 49. When the receiving block 50 moves away from the positioning block 4, the cooperation between the receiving block 50 and the sliding groove 49 can lift the cross frame 48 and the mounting base 45 upward; conversely, it can pull the cross frame 48 and the mounting base 45 downward, so that the mounting base 45 drives the support block 3 to rotate up or down along the linkage pin 47, and then the support block 3 drives the camera body 1 to rotate synchronously. In this way, the camera body 1 can be controlled to rotate up and down on the basis of controlling the horizontal rotation, thereby realizing the all-round adjustment of the camera body 1, and can adaptively adjust and track the movement of strangers.

[0047] Reference Figure 6As shown, under normal circumstances, the camera body 1 can only monitor the shooting area at a normal focal length. However, if criminals appear in the shooting area or if it is necessary to accurately identify and track specific targets, the normal focal length of the camera body 1 alone cannot clearly capture the target. As a result, when viewing the surveillance video after transmitting the captured data to the database, the image is often blurry and difficult to identify. To avoid this problem, this embodiment also provides a focal length adjustment mechanism 7, which is specifically as follows: The focal length adjustment mechanism 7 includes a sleeve 71 that is movably sleeved on the shooting end of the camera body 1. A lens 72 for adjusting the shooting focal length of the camera body 1 is movably disposed inside the sleeve 71, and a glass cover 73 is installed on the inner wall of the sleeve 71 on the side away from the camera body 1.

[0048] Furthermore, in this embodiment, an annular conductive coil 711 is installed inside the sleeve 71 on the side away from the camera body 1, and a plurality of annularly distributed fill lights 712 are installed at the end of the sleeve 71 away from the camera body 1. The fill lights 712 and the annular conductive coil 711 are electrically connected, as are the annular conductive coil 711 and the controller 41.

[0049] In practice, the focal length of the camera body 1 can be adjusted by controlling the distance between the lens 72 and the lens of the camera body 1, thereby magnifying or reducing the captured image and uploading the clear image to the database. In addition, during nighttime monitoring, the controller 41 can turn on the fill light 712 through the ring conductive coil 711 to illuminate the shooting area of ​​the camera body 1, thereby further improving the image clarity.

[0050] Example 2: Reference Figure 7 and Figure 8 As shown, based on Embodiment 1, since the camera body 1 can be supported by the annular cylinder 32 during horizontal rotation, but lacks support when rotating up and down, it lacks stability. Therefore, it is necessary to limit and fix the camera body 1 after it rotates up and down. Specifically, in this embodiment, multiple annularly distributed grooves are evenly opened on the inner wall of the through groove along the linkage pin 47. The fixing seat 46 has multiple receiving grooves 53 corresponding to the groove positions on both sides of the through groove. The inner wall of the receiving groove 53 is equipped with an abutting block 55 through the top extension spring rod 54. The end of the abutting block 55 away from the top extension spring rod 54 slides and abuts against the groove.

[0051] It should be noted that the top extension spring rod 54 provided in this embodiment always applies a pushing force to the abutment block 55 in the direction away from the receiving groove 53. In addition, in this embodiment, the cross-sections of the groove and the abutment block 55 are both semi-circular structures, and the cross-sectional area of ​​the abutment block 55 is larger than the cross-sectional area of ​​the groove. Therefore, the abutment block 55 can smoothly slide against the groove and slide out of the groove smoothly.

[0052] In actual use, when the mounting base 45 drives the support block 3 to rotate along the linkage pin 47, the mounting base 45 and the fixed base 46 move relative to each other. As a result, the fixed base 46, the top extension spring rod 54 and the abutment block 55 all rotate relative to the mounting base 45. When the camera body 1 rotates to the specified angle, the support block 3 and the mounting base 45 no longer rotate. At this time, the abutment block 55 on the fixed base 46 abuts against the groove under the action of the top extension spring rod 54. In this way, the cooperation between the abutment block 55 and the groove can limit and fix the fixed base 46, the support block 3 and the camera body 1, thereby ensuring the stability of the camera body 1 after it rotates up and down.

[0053] Example 3: Reference Figure 9 and Figure 10 As shown, based on Embodiment 1, in order to more conveniently adjust the shooting focal length of the camera body 1, it is necessary to control the lens 72 to move automatically. Based on this, this embodiment makes further improvements to the focal length adjustment mechanism 7. Specifically, the focal length adjustment mechanism 7 also includes multiple limiting grooves 74 that are opened on the inner side wall of the sleeve 71 and distributed in a ring. Adjusting blocks 75 are slidably arranged in the limiting grooves 74. Multiple adjusting blocks 75 are connected to the lens 72. Guide posts 76 are provided in the limiting grooves 74 that slide through the adjusting blocks 75. The guide posts 76 can limit the adjusting blocks 75 so that the adjusting blocks 75 can only move along the length direction of the guide posts 76. The sleeve 71 also has an annular groove inside. The annular groove is located outside the limiting grooves 74 and is connected to them. An annular frame 77 is rotatably arranged in the annular groove. The inner side wall of the annular frame 77 and the outer side wall of the adjusting blocks 75 are provided with matching transmission threads.

[0054] Furthermore, in this embodiment, an annular gear ring 78 is sleeved on the outer wall of the annular frame 77, and a cylindrical groove is opened inside the sleeve 71 below the annular frame 77. A gear 79 that meshes with the annular gear ring 78 is rotatably arranged in the cylindrical groove through a rotating shaft. An adjusting motor 80 connected to the rotating shaft is also installed inside the sleeve 71 through a receiving groove. The adjusting motor 80 and the controller 41 are electrically connected through a third wire 81.

[0055] In the specific implementation process, when it is necessary to adjust the shooting focal length of the camera body 1, the controller 41 controls the adjustment motor 80 to start and drives the gear 79 to rotate through the rotating shaft. The gear 79 and the ring gear 78 cooperate to drive the ring frame 77 to rotate. The ring frame 77 drives the adjustment block 75 and the lens 72 to move along the limiting slide groove 74 through the transmission thread, thereby adjusting the shooting focal length of the camera body 1.

[0056] By adjusting the focal length of the camera body 1, the captured image can be magnified or reduced. That is, the smaller the focal length, the wider the field of view, and the wider the range of objects that can be captured. At this time, the shooting area of ​​the camera body 1 can be magnified and the image of the target can be reduced. Conversely, the larger the focal length, the narrower the field of view. At this time, the shooting area of ​​the camera body 1 can be reduced and the image of the target can be magnified. Thus, when a stranger appears in the shooting area, the camera body 1 can be controlled to track and shoot, and the image of the target can be magnified. In this way, the facial and body features of the target can be captured and uploaded to the database through the data transmission device 42, thereby realizing data monitoring.

[0057] Furthermore, when a stranger is a criminal and the data is uploaded to the network by the public security department, the controller 41 controls the data transmission device 42 to transmit the criminal's photographed data to the public security department, thereby reducing the adverse effects caused by the criminal.

[0058] In addition, the present invention also provides a database-based data monitoring method, comprising the following steps: S1: Real-time monitoring: The monitoring area is monitored in real time through the camera body 1.

[0059] S2: Data comparison: The image captured by the camera body 1 can be transmitted to the database in real time through the data transmission device 42 for data comparison, and then the comparison result can be transmitted to the controller 41 for real-time data monitoring.

[0060] S3: Data recording: When a stranger enters the shooting area of ​​the camera body 1, and the database does not have the stranger's data information, the controller 41 will control the camera body 1 to track and shoot the stranger and transmit his / her image information to the database.

[0061] S4: Tracking and shooting: When a stranger appears in the shooting area of ​​the camera body 1, the controller 41 controls the drive motor 31 to drive the fixed ring 2 and the camera body 1 to rotate horizontally as a whole. The controller 41 also controls the telescopic cylinder 52 to drive the receiving block 50 to move in the sliding groove 49, and causes the mounting base 45 to drive the support block 3 and the camera body 1 to rotate up or down along the linkage pin 47. In this way, the camera body 1 can be controlled to rotate up and down while controlling its horizontal rotation, thereby realizing the all-round adjustment of the camera body 1. It can also adaptively adjust and track and shoot according to the walking direction of the stranger.

[0062] During this period, the controller 41 controls the adjustment motor 80 to drive the gear 79 to rotate. The gear 79 and the ring gear 78 work together to drive the ring frame 77 to rotate. The ring frame 77 drives the adjustment block 75 and the lens 72 to move along the limiting slide groove 74, thereby adjusting the shooting focal length of the camera body 1. This allows the camera to zoom in or out, and the captured image is uploaded to the database. This also allows the camera to zoom in on the target and capture the target's facial and body features. The captured image is then uploaded to the database via the data transmission device 42, thus enabling data monitoring.

[0063] In addition, during nighttime monitoring, the controller 41 can turn on the fill light 712 through the ring-shaped conductive coil 711 to illuminate the shooting area of ​​the camera body 1, thereby further improving its shooting clarity.

[0064] Furthermore, when a stranger is a criminal and the data is uploaded to the network by the public security department, the controller 41 controls the data transmission device 42 to transmit the criminal's data to the public security department, thereby reducing the adverse effects caused by the criminal.

[0065] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0066] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A database-based data monitoring device, comprising a camera body (1), characterized in that: A fixing ring (2) is fitted on the outer wall of the camera body (1) away from the shooting end. A support block (3) is movably installed at the lower end of the fixing ring (2). A positioning block (4) is movably installed on the side of the support block (3) away from the shooting end of the camera body (1). A mounting bracket (6) is installed at the bottom of the positioning block (4). A focal length adjustment mechanism (7) for adjusting its shooting distance is installed on the side of the outer wall of the camera body (1) close to the shooting end.

2. The database-based data monitoring device according to claim 1, characterized in that: The support block (3) has a positioning groove inside, and a drive motor (31) is installed in the positioning groove. The output shaft of the upper end of the drive motor (31) is connected to the bottom of the fixed ring (2). An annular cylinder (32) is installed at the lower end of the fixed ring (2). An annular groove is opened at the upper end of the support block (3), and the lower end of the annular cylinder (32) is rotatably set in the annular groove.

3. The database-based data monitoring device according to claim 1, characterized in that: The lower side of the positioning block (4) is provided with a controller (41) through a mounting slot, and the upper side of the positioning block (4) is provided with a data transmission device (42) through a connecting slot. The controller (41) and the data transmission device (42) are electrically connected through a first wire (43), and the controller (41) and the drive motor (31) are electrically connected through a second wire (44).

4. The database-based data monitoring device according to claim 1, characterized in that: The support block (3) and the positioning block (4) are respectively provided with mounting base (45) and fixing base (46) on opposite sides. The mounting base (45) has a through groove at the end away from the support block (3) and is connected to the fixing base (46) by a linkage pin (47).

5. A database-based data monitoring device according to claim 4, characterized in that: The mounting base (45) has two crossbars (48) symmetrically arranged along the through groove at its lower end. The lower end of the crossbars (48) is provided with a sliding groove (49) parallel to its length direction. A receiving block (50) is slidably arranged inside the sliding groove (49). Two supports (51) are symmetrically arranged on the side of the positioning block (4) near the support block (3) along the fixed seat (46). The supports (51) are located below the cross frame (48) and correspond to its position. A telescopic cylinder (52) is hinged between the support (51) on the same side of the mounting seat (45) and the receiving block (50), and the telescopic cylinder (52) and the controller (41) are electrically connected.

6. A database-based data monitoring device according to claim 4, characterized in that: The inner wall of the through groove is evenly provided with multiple annularly distributed grooves along the linkage pin (47). The fixing seat (46) is provided with multiple receiving grooves (53) corresponding to the positions of the grooves on both sides of the through groove. The inner wall of the receiving groove (53) is equipped with an abutting block (55) through the top extension spring rod (54). The end of the abutting block (55) away from the top extension spring rod (54) slides against the groove.

7. A database-based data monitoring device according to claim 1, characterized in that: The focal length adjustment mechanism (7) includes a sleeve (71) that is movably sleeved on the shooting end of the camera body (1). Inside the sleeve (71) is a lens (72) for adjusting the shooting focal length of the camera body (1). A glass cover (73) is installed on the inner wall of the sleeve (71) away from the camera body (1).

8. A database-based data monitoring device according to claim 7, characterized in that: An annular conductive coil (711) is installed inside the sleeve (71) on the side away from the camera body (1). Multiple ring-shaped fill lights (712) are installed at the end of the sleeve (71) away from the camera body (1). The fill lights (712) and the annular conductive coil (711) are electrically connected, as are the annular conductive coil (711) and the controller (41).

9. A database-based data monitoring method, comprising a database-based data monitoring device as described in any one of claims 1-8, characterized in that, The monitoring method includes the following steps: S1: Real-time monitoring: The monitoring area is monitored in real time through the camera body (1); S2: Data comparison: When a stranger enters the shooting area of ​​the camera body (1), the controller (41) controls the data transmission device (42) to upload the captured image to the database for comparison. If the captured stranger is a criminal and is uploaded to the network by the public security department, the controller (41) controls the data transmission device (42) to transmit the captured data of the criminal to the public security department. S3: Data recording: If the stranger's data information is not saved in the database, the camera body (1) is controlled by the controller (41) to track and photograph the stranger and transmit his image information to the database; S4: Tracking and shooting: When a stranger appears in the shooting area of ​​the camera body (1), the camera body (1) is adjusted by the controller (41) to shoot the stranger and track and shoot.

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