A two-dimensional turntable used in a commanding point safety monitoring system

Abstract

The application relates to a two-dimensional rotary table used in a commanding point safety monitoring system, which comprises a support, a pitching frame, an azimuth shaft, a current collecting ring, a pitching shaft and a mounting shaft, the azimuth shaft is rotatably connected with the support, the pitching shaft is rotatably connected with the pitching frame, both ends of the pitching shaft are used for mounting an imaging system, a transition ring is arranged in the middle of the pitching shaft, the axis of the pitching shaft is perpendicular to the axis of the azimuth shaft, the current collecting ring is arranged in the azimuth shaft, the mounting shaft passes through the support, the ring core of the current collecting ring and the transition ring and extends out of the pitching frame and is used for mounting an identification system, the mounting shaft is coaxially arranged with the azimuth shaft, the shell of the pitching frame and the current collecting ring rotates with the azimuth shaft, the pitching shaft rotates relative to the pitching frame to drive the imaging system to rotate, the mounting shaft simultaneously serves as an inner shaft of the current collecting ring, the current collecting ring is arranged in the azimuth shaft, the mounting shaft passes through the pitching shaft at the transition ring, the whole two-dimensional rotary table is simple and compact, the identification system is more conveniently and accurately positioned, and the cooperation of the imaging system and the identification system is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of safety monitoring, in particular to a two-dimensional turntable for a high point safety monitoring system. BACKGROUND

[0002] The high point safety monitoring system is a safety system for monitoring the surrounding environment. The need for intelligent monitoring has led to the current high point safety monitoring system, which mainly consists of an imaging system and a recognition system. The entire system is installed at a high point in a certain environment (such as a seaside), and the imaging system performs uninterrupted 360° scanning and forms an image of the surrounding environment. The recognition system compares the image of the surrounding environment in real time, and alarms for abnormal changes in the image. The recognition system then turns to the direction of the abnormal environment in the image to further identify and analyze the abnormal situation. The working mode of the high point safety monitoring system requires the imaging system to rotate quickly and stably in azimuth and elevation, and the recognition system needs to have the same viewing angle as the imaging system to observe the surrounding environment.

[0003] Currently, the existing two-dimensional turntable is mainly for the imaging system, and does not have the structure to install the recognition system. Both the imaging system and the recognition system need to have independent movement capabilities. Therefore, if the recognition system is simply arranged, spliced and fixed to the elevation frame of the existing two-dimensional turntable, the rotation of the elevation frame will affect the positioning of the recognition system, increase the difficulty of positioning the recognition system, reduce the response speed of the recognition system, and reduce the coordination between the imaging system and the recognition system. Therefore, there is an urgent need to develop a two-dimensional turntable for a high point safety monitoring system. SUMMARY

[0004] (I) Technical problem to be solved

[0005] The purpose of the present application is to provide a two-dimensional turntable for a high point safety monitoring system, which can simultaneously install an imaging system and a recognition system, improve the coordination between the imaging system and the recognition system, and has a simple and compact structure.

[0006] (II) Technical solution

[0007] In order to achieve the above purpose, the present application provides a two-dimensional turntable for a high point safety monitoring system, which comprises a support, an elevation frame, an azimuth shaft, a current collector ring, an elevation shaft and an installation shaft. The azimuth shaft is arranged in the support and is rotatably connected to the support through a bearing. The azimuth shaft is a hollow shaft. One end of the current collector ring is arranged in the azimuth shaft, and the outer shell of the current collector ring is fixedly connected to the azimuth shaft. The other end of the current collector ring is arranged in the elevation frame, and the outer shell of the current collector ring at this end is fixedly connected to the elevation frame. The end of the elevation frame is fixedly connected to the azimuth shaft.

[0008] The pitch shaft passes through the pitch frame and is rotatably connected to the pitch frame through a bearing, so that the pitch shaft can be rotated relative to the pitch frame, both ends of the pitch shaft are located outside the pitch frame and are used for mounting the imaging system, and a transition ring is arranged in the middle of the pitch shaft, and an axis of the pitch shaft is perpendicular to an axis of the azimuth shaft;

[0009] The mounting shaft passes through the support, the ring core of the bus ring and the transition ring and extends out of the pitch frame, is used for mounting the identification system, is fixedly connected with the support, the ring core of the bus ring is fixedly connected with the mounting shaft, and the mounting shaft is coaxially arranged with the azimuth shaft;

[0010] The rotation of the azimuth shaft can drive the rotation of the housing of the pitch frame and the bus ring;

[0011] When the pitch shaft is rotated to a set angle, one side of the transition ring abuts against the mounting shaft, and the rotation of the pitch shaft is limited.

[0012] Optionally, the two ends of the pitch shaft are provided with an interface disc, and a plurality of mounting holes are uniformly distributed in the circumference of the interface disc.

[0013] Optionally, an included angle between adjacent two mounting holes is 30°.

[0014] Optionally, the pitch shaft comprises a first shaft segment and a second shaft segment, the first shaft segment and the second shaft segment are coaxially and spaced apart, and the transition ring is arranged between the first shaft segment and the second shaft segment.

[0015] The transition ring comprises two spaced-apart connecting discs, the two connecting discs are connected with the first shaft segment and the second shaft segment respectively, and two baffles are arranged between the two connecting discs.

[0016] The baffles are V-shaped, the openings of the two V-shaped baffles are oppositely arranged, and a space for the mounting shaft to pass through is formed.

[0017] Optionally, one end of the mounting shaft is provided with a bottom disc, and the mounting shaft is fixedly installed in the support through the bottom disc.

[0018] The other end of the mounting shaft is provided with a mounting disc, and the identification system is mounted on the mounting disc.

[0019] Optionally, the mounting shaft further comprises an adapter seat, one end of the adapter seat is fixedly connected with the mounting disc, the other end of the adapter seat is provided with an annular stopper, an annular protrusion is arranged on the pitch frame, the annular stopper is sleeved outside the annular protrusion, the annular protrusion is rotatably connected relative to the annular stopper, and the adapter seat is fixedly connected to the end of the mounting shaft.

[0020] Optionally, an annular groove is arranged on an end face of the annular protrusion, a sealing ring is arranged in the annular groove, and dynamic sealing is achieved between the annular protrusion and the adapter seat.

[0021] Optionally, a sealing ring is arranged between the mounting disc and the adapter seat.

[0022] Optionally, the sealing gasket is arranged at the end of the mounting disc away from the adapter.

[0023] Optionally, the mounting shaft has a hollow cavity, and a threading hole is arranged on the circumferential side of the mounting shaft and communicates with the hollow cavity.

[0024] (III) Beneficial effects

[0025] The above technical scheme of the present application has the following advantages: the two-dimensional turntable used by the high point safety monitoring system provided by the present application comprises a support, a pitch frame, an azimuth shaft, a current collector ring, a pitch shaft and a mounting shaft, the azimuth shaft is rotatably connected with the support, the pitch shaft is rotatably connected with the pitch frame, both ends are used for mounting an imaging system, a transition ring is arranged in the middle of the pitch shaft, the axis of the pitch shaft is perpendicular to the axis of the azimuth shaft, the current collector ring is arranged in the azimuth shaft, the mounting shaft passes through the support, the ring core of the current collector ring and the transition ring and extends out of the pitch frame, and is used for mounting an identification system, the mounting shaft is coaxially arranged with the azimuth shaft, when the azimuth shaft rotates, the pitch frame and the shell of the current collector ring rotate with the azimuth shaft, the pitch shaft rotates relative to the pitch frame to drive the imaging system to rotate, the mounting shaft simultaneously serves as an inner shaft of the current collector ring, the current collector ring is arranged in the azimuth shaft, the mounting shaft passes through the pitch shaft at the transition ring, the entire two-dimensional turntable has a simple and compact structure, and the identification system is more conveniently and accurately positioned, and the synergy of the imaging system and the identification system is improved. BRIEF DESCRIPTION OF DRAWINGS

[0026] The drawings of the present application are provided for illustrative purposes only, and the proportions and quantities of the components in the drawings may not be consistent with the actual products.

[0027] Figure 1 is a two-dimensional turntable structure schematic diagram used by a high point safety monitoring system in an embodiment of the present application;

[0028] Figure 2 is a cross-sectional schematic diagram of a two-dimensional turntable in an embodiment of the present application;

[0029] Figure 3 is Figure 2 a cross-sectional schematic diagram of the support and the azimuth shaft in the two-dimensional turntable;

[0030] Figure 4 is Figure 2 a cross-sectional schematic diagram of the pitch frame and the pitch shaft in the two-dimensional turntable;

[0031] Figure 5 is Figure 2 a cross-sectional schematic diagram of the pitch frame in the two-dimensional turntable;

[0032] Figure 6 is a structure schematic diagram of a pitch shaft in an embodiment of the present application;

[0033] Figure 7 is Figure 6 a half cross-sectional schematic diagram of the pitch shaft in the two-dimensional turntable;

[0034] Figure 8 yes Figure 7 Schematic diagram of AA section in the middle;

[0035] Figure 9 This is a schematic diagram of the structure of a mounting shaft in an embodiment of the present invention; Figure 10 yes Figure 9 A half-sectional view of the centrally mounted shaft.

[0036] In the picture:

[0037] 1: Support;

[0038] 2: Pitch frame;

[0039] 21: Annular protrusion;

[0040] 211: Annular groove;

[0041] 22: Sealing ring;

[0042] 3: Azimuth axis;

[0043] 4: Bus loop;

[0044] 41: The outer shell of the bus ring;

[0045] 42: The core of the bus ring;

[0046] 5: Pitch axis;

[0047] 51: Transition loop;

[0048] 511: Connecting disk;

[0049] 512: baffle;

[0050] 52: Interface disk;

[0051] 521: Mounting hole;

[0052] 53: First axle segment;

[0053] 54: Second axle segment;

[0054] 6: Install the shaft;

[0055] 61: Chassis;

[0056] 62: Installation disk;

[0057] 63: Adapter socket;

[0058] 631: Annular stop;

[0059] 64: Sealing ring;

[0060] 65: Sealing gasket;

[0061] 66: threading hole;

[0062] 7: bearing. DETAILED DESCRIPTION

[0063] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the protection scope of the present application.

[0064] The terms "first", "second", are used only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0065] In the description of the present application, it should also be noted that unless specifically defined and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0066] Referring to Figure 1 and Figure 2 As shown in the drawings, the two-dimensional turntable used in the commanding height safety monitoring system provided by the embodiments of the present application comprises a support 1, a pitching frame 2, an azimuth shaft 3, a current collector ring 4, a pitching shaft 5 and a mounting shaft 6. The azimuth shaft 3 is arranged in the support 1 and is rotatably connected to the support 1 through a bearing 7. Thus, the azimuth shaft 3 can rotate relative to the support when needed. The azimuth shaft 3 is a hollow shaft, one end of the current collector ring 4 is arranged in the azimuth shaft 3, the outer shell 41 of the current collector ring 4 is fixedly connected to the azimuth shaft 3, the other end of the current collector ring 4 is arranged in the pitching frame 2, and the outer shell 41 of the current collector ring at this end is fixedly connected to the pitching frame 2. The end of the pitching frame 2 is fixedly connected to the azimuth shaft. When the azimuth shaft 3 rotates, the pitching frame 2 and the outer shell 41 of the current collector ring rotate with the azimuth shaft 3.

[0067] Referring to Figure 2 and Figure 4 As shown in the drawings, the pitching shaft 5 transversely passes through the pitching frame 2 and is rotatably connected to the pitching frame 2 through a bearing 7, so that the pitching shaft 5 can pitch relative to the pitching frame 2. The two ends of the pitching shaft 5 are located outside the pitching frame 2 and are used for mounting an imaging system (not shown in the drawings). The middle part of the pitching shaft 5 is provided with a transition ring 51, and the axis of the pitching shaft 5 is perpendicular to the axis of the azimuth shaft 3.

[0068] The mounting shaft 6 passes through the support 1, the ring core 42 of the collector ring and the transition ring 51 and extends out of the pitch frame 2, and is used for mounting an identification system (not shown in the figure). The mounting shaft 6 is fixedly connected with the support 1, the ring core 42 of the collector ring is fixedly connected with the mounting shaft 6, and the mounting shaft 6 is coaxially arranged with the azimuth shaft 3.

[0069] In use, the identification system is mounted on the mounting shaft 6, and the imaging system is mounted at both ends of the pitch shaft 5. When the imaging system images the surrounding environment, the azimuth shaft 3 rotates to drive the pitch frame 2 and the shell 41 of the collector ring to rotate, so that the imaging system performs uninterrupted 360° scanning, and the real-time comparison of the images of the surrounding environment is performed, and the abnormal change in the image is alarmed. The identification system turns to the direction of the environment with the abnormal image to further identify and analyze the abnormal situation. Since the mounting shaft 6 and the azimuth shaft 3 are coaxially arranged, the identification system is more convenient and accurate to position, the response speed is improved, the identification system can observe the surrounding environment with the same view angle as the imaging system, the identification accuracy is improved, and the synergy of the imaging system and the identification system is improved. In addition, the mounting shaft 6 simultaneously serves as an inner shaft of the collector ring 4, the collector ring 4 is arranged in the azimuth shaft 3, the mounting shaft 6 passes through the pitch shaft 5 at the transition ring 51, and the entire two-dimensional rotary table structure is simple and compact. In addition, the mounting shaft 6 passes through the transition ring 51, so that a limiting structure of the pitch shaft 5 is formed between the transition ring 51 and the mounting shaft 6. When the pitch shaft 5 rotates to a set angle, one side of the transition ring 51 abuts against the mounting shaft 6, so that the rotation of the pitch shaft 5 is limited, and the pitch angle adjustment range of the pitch shaft 5 is limited.

[0070] In order to facilitate the installation of the imaging system, in some optional embodiments, as shown in Figure 2 and Figure 4 , interface discs 52 are arranged at both ends of the pitch shaft 5, and a plurality of mounting holes 521 are uniformly distributed in the circumferences of the interface discs 52. In this embodiment, the imaging system can select different mounting holes 521 for installation, so that the imaging system has different initial installation angles, thereby meeting different needs. For example, the mounting shaft 6 cooperates with the transition ring 51 to realize the adjustment of the pitch shaft 5 within a range of ±60°, and the imaging system selects different mounting holes 521. Although the adjustment range of the pitch angle is unchanged (determined by the transition ring 51 and the mounting shaft 6), the angle of the imaging acquisition can be adjusted, for example, the angle of the imaging acquisition changes to 45° to -75°.

[0071] In a preferred embodiment, as shown in Figures 6-8 , the included angle α between the two adjacent mounting holes 521 is 30°.

[0072] In some embodiments, as shown in Figure 6 and Figure 7As shown, the pitch axis 5 comprises a first shaft segment 53 and a second shaft segment 54, which are coaxially spaced apart, and the transition ring 51 is arranged between the first shaft segment 53 and the second shaft segment 54. The transition ring 51 comprises two spaced-apart connecting plates 511, which are respectively connected with the first shaft segment 53 and the second shaft segment 54, and two baffles 512 are arranged between the two connecting plates 511. In one specific embodiment, the baffles 512 are V-shaped plates, and the openings of the two V-shaped baffles 512 are oppositely arranged to form a space for the shaft 6 to pass through. In another specific embodiment, the baffles 512 are arc-shaped plates, and the arc centers of the two arc-shaped baffles 512 are oppositely arranged to form a space for the shaft 6 to pass through.

[0073] In order to facilitate the installation of the identification system, in some embodiments, as shown in Figure 2 , Figure 9 and Figure 10 , one end of the mounting shaft 6 is provided with a base plate 61, and the mounting shaft 6 is fixedly installed on the support 1 through the base plate 61. The other end of the mounting shaft 6 is provided with a mounting plate 62, and the identification system is installed on the mounting plate 62.

[0074] In order to better solve the relative rotation between the pitch frame 2 and the mounting shaft 6, it is further preferred that, as shown in Figure 2 and Figure 10 , the mounting shaft 6 further comprises an adapter seat 63, the mounting plate 62 is fixedly connected with one end of the adapter seat 63, and the other end of the adapter seat 63 is provided with an annular stopper 631. An annular protrusion 21 is arranged on the pitch frame 2, the annular stopper 631 is sleeved outside the annular protrusion 21, and the annular protrusion 21 is rotatably connected with the annular stopper 631. The adapter seat 63 is fixedly connected with the end of the mounting shaft 6.

[0075] In order to adapt to outdoor and some environments that need to be waterproof, in some preferred embodiments, as shown in Figure 4 and Figure 5 , an annular groove 211 is arranged on the end face of the annular protrusion 21, and a sealing ring 22 is arranged in the annular groove 211 to achieve dynamic sealing between the annular protrusion 21 and the adapter seat 63. It should be noted that the dynamic sealing can be achieved by using existing technologies, which will not be described here.

[0076] It is worth noting that in order to improve the waterproof performance, sealing can also be arranged at other gaps of the two-dimensional rotary table.

[0077] It is also worth noting that the relative sliding structure between the pitch frame 2 and the support 1 can adopt the same structure as the annular stopper 631 and the annular protrusion 21, which will not be described here.

[0078] In order to further improve the sealing effect, in some embodiments, as shown in Figure 10As shown, a sealing ring 64 is arranged between the mounting disc 62 and the adapter 63. More preferably, a sealing gasket 65 is arranged at the end of the mounting disc 62 away from the adapter 63.

[0079] In order to facilitate the arrangement of the circuit, in some embodiments, referring to Figure 9 and Figure 10 As shown,

[0080] The mounting shaft 6 has a hollow cavity, and a threading hole 66 is arranged at the circumferential side of the mounting shaft 6, which is in communication with the hollow cavity.

[0081] It should be noted that the rotation of the azimuth shaft 3 and the pitch shaft 5 is driven by a motor, and the motor and the transmission structure are prior art and will not be described here. The collector ring 4 is a prior art structure and will not be described here. It should also be noted that the recognition system is prior art, and its movement can use a two-dimensional turntable in the prior art, which will not be described here.

[0082] The parts of the present application not described in detail are known to those skilled in the art.

[0083] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: not every example contains only one independent technical solution, in the absence of solution conflict, each technical feature mentioned in each example can be combined in any way to form other embodiments that can be understood by those skilled in the art.

[0084] In addition, without departing from the scope of the present application, the technical solutions described in the foregoing embodiments are modified, or some technical features are replaced, without changing the essence of the corresponding technical solutions out of the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A two-dimensional turntable for use in a high point security monitoring system, the two-dimensional turntable comprising: a support, an elevation frame, an azimuth shaft, a bus ring, an elevation shaft, and a mounting shaft, the azimuth shaft being disposed through the support and rotatably connected to the support via a bearing, the azimuth shaft being a hollow shaft, one end of the bus ring being disposed through the azimuth shaft, an outer shell of the bus ring being fixedly connected to the azimuth shaft, the other end of the bus ring being disposed through the elevation frame, and the outer shell of the bus ring at the other end being fixedly connected to the elevation frame, an end of the elevation frame being fixedly connected to the azimuth shaft; the elevation shaft being disposed through the elevation frame and rotatably connected to the elevation frame via a bearing, the elevation shaft being capable of elevation rotation relative to the elevation frame, both ends of the elevation shaft being located outside the elevation frame for mounting an imaging system, a transition ring being disposed in a middle portion of the elevation shaft, an axis of the elevation shaft being perpendicular to an axis of the azimuth shaft; the mounting shaft being disposed through the support, a ring core of the bus ring, and the transition ring and extending out of the elevation frame for mounting an identification system, the mounting shaft being fixedly connected to the support, the ring core of the bus ring being fixedly connected to the mounting shaft, and the mounting shaft being coaxially disposed with the azimuth shaft; the azimuth shaft being capable of driving the elevation frame and the outer shell of the bus ring to rotate; the elevation shaft being capable of being limited in rotation by the transition ring abutting against the mounting shaft when the elevation shaft is rotated to a set angle; the elevation shaft comprising a first shaft segment and a second shaft segment, the first shaft segment and the second shaft segment being coaxially and spaced apart, and the transition ring being disposed between the first shaft segment and the second shaft segment; the transition ring comprising two spaced apart connecting discs, the two connecting discs being connected to the first shaft segment and the second shaft segment respectively, and two baffles being disposed between the two connecting discs; the baffles being V-shaped, openings of the two V-shaped baffles being oppositely disposed to form a space for the mounting shaft to pass through. 2.The two-dimensional turntable according to claim 1, wherein: both ends of the elevation shaft are provided with interface discs, and a plurality of mounting holes are uniformly distributed in a circumferential direction of each interface disc. 3.The two-dimensional turntable according to claim 2, wherein: an included angle between two adjacent mounting holes is 30°. 4.The two-dimensional turntable according to claim 1, wherein: one end of the mounting shaft is provided with a base plate, and the mounting shaft is fixedly mounted to the support via the base plate; the other end of the mounting shaft is provided with a mounting disc, and the identification system is mounted to the mounting disc. 5.The two-dimensional turntable according to claim 4, wherein: the mounting shaft further comprises an adapter, one end of the adapter is fixedly connected to the mounting disc, the other end of the adapter is provided with an annular stopper, the elevation frame is provided with an annular protrusion, the annular stopper is sleeved outside the annular protrusion, the annular protrusion is rotatably connected relative to the annular stopper, and the adapter is fixedly connected to an end portion of the mounting shaft. 6.The two-dimensional turntable according to claim 5, wherein: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The end surface of the annular protrusion is provided with an annular groove, and a sealing ring is arranged in the annular groove, so that dynamic sealing is achieved between the annular protrusion and the adapter seat.

7. The two-dimensional rotary table according to claim 5, characterized in that: A sealing ring is arranged between the mounting disc and the adapter seat.

8. The two-dimensional rotary table according to claim 5, characterized in that: A sealing gasket is arranged at the end of the mounting disc away from the adapter seat.

9. The two-dimensional rotary table according to claim 1, characterized in that: The mounting shaft has a hollow cavity, and a threading hole is arranged on the circumferential side of the mounting shaft and communicates with the hollow cavity.

Images