Camera

Abstract

The utility model discloses a camera. The camera comprises a shell and at least two lens assemblies located in the shell. The recognition ranges of the at least two lens assemblies are not equal, the lower limit of the recognition range of one lens assembly is the upper limit of the recognition range of the other lens assembly, and the recognition range of the camera is the range formed by combining the recognition ranges of the at least two lens assemblies. Therefore, the maximum recognition range (corresponding to the recognition distance) which can be realized by the camera is the range formed by combining the recognition ranges of the at least two lens assemblies, the recognition distance is longer, and the camera is convenient to use.

Description

Technical Field

[0001] This application relates to the field of monitoring technologies, and particularly to cameras. Background Art

[0002] Cameras, for example, cameras used for monitoring in rail transit, highways, etc., can only monitor a single distance range and cannot identify farther distances, which brings inconvenience to use. Summary of the Invention

[0003] The purpose of this application is to disclose a camera.

[0004] This application discloses a camera. The camera includes a housing and at least two lens assemblies located inside the housing; the recognition ranges of the at least two lens assemblies are not equal, and the lower limit of the recognition range of one of the lens assemblies is the upper limit of the recognition range of another one of the lens assemblies, and the recognition range of the camera is the range combined by the recognition ranges of the at least two lens assemblies.

[0005] In some embodiments, the camera includes an adjustment assembly and a lens bracket, and the lens assembly whose tilt angle is adjusted is connected to the lens bracket through the adjustment assembly, and the adjustment assembly is used to adjust the tilt angle of the lens assembly; the lens assembly whose tilt angle is adjusted at least includes the lens assembly with the largest upper limit of the recognition range.

[0006] In some embodiments, the camera includes a fixing mechanism. The lens assembly whose tilt angle is adjusted includes a first side and a second side opposite to each other, and the first side is fixed to the lens bracket through the fixing mechanism. There are multiple adjustment assemblies, and the multiple adjustment assemblies are all arranged on the second side and connect the second side to the lens bracket.

[0007] In some embodiments, the multiple adjustment assemblies include a first adjustment assembly and a second adjustment assembly, and at least one of the first adjustment assembly and the second adjustment assembly includes an elastic member and an adjustment member, and the elastic member abuts against the second side and the lens bracket; the adjustment member rotates in different directions to change the deformation of the elastic member to achieve adjustment.

[0008] In some embodiments, a dispensing area is formed between the second side of the lens assembly whose tilt angle is adjusted and the lens bracket. After the tilt angle of the lens assembly whose tilt angle is adjusted is adjusted, the dispensing area is dispensed with glue to fix the lens assembly whose tilt angle is adjusted.

[0009] In some embodiments, the at least two lens assemblies are arranged in an L shape to have a corner area; the housing includes a front cover, and the camera includes a supplementary lighting component, and the supplementary lighting component is assembled on the front cover and located in the corner area.

[0010] In some embodiments, the housing includes a front cover and a fuselage; the front end of the fuselage and the front cover enclose a front sealed compartment; the camera includes a supplementary lighting component for lighting the installed lens assembly, and the supplementary lighting component is assembled on the front cover and dissipates heat through the front cover; the installed lens assembly is located in the front sealed compartment, and the heat of the installed lens assembly dissipates into the front sealed compartment and dissipates heat from the fuselage. The camera further includes a main board component that controls the installed lens assembly and is located in the front sealed compartment; the front sealed compartment includes a rear bulkhead at the rear end of the fuselage and a lateral bulkhead on the side of the fuselage; a part of the components of the main board component are in contact with the rear bulkhead, and another part of the components of the main board component are in contact with the lateral bulkhead, so that the heat of the main board component dissipates heat through the fuselage.

[0011] In some embodiments, the housing includes a wire hiding box, and the wire hiding box is assembled at the rear end of the fuselage and encloses a rear sealed compartment with the fuselage; the rear sealed compartment and the front sealed compartment share the rear bulkhead; the heat of the main board component also dissipates into the rear sealed compartment through the rear bulkhead; an external cable passes through the outside of the wire hiding box into the rear sealed compartment and is connected to the internal cable on the rear bulkhead.

[0012] In some embodiments, the camera includes a radar, and the radar is located at the top of the front cover, and is rotatably connected to the front cover through a rotating mechanism and can be locked in the rotated position through a locking mechanism; the cable of the radar enters the front sealed compartment from the inside of the rotating mechanism and is connected to the main board component.

[0013] In some embodiments, the locking mechanism includes a locking hole provided on the fuselage, an edge provided at the bottom of the radar and extending circumferentially around the radar, and a locking member; when the radar rotates to the required angle, the locking member locks with the locking hole and presses the edge.

[0014] For the camera, since the camera includes at least two lens assemblies, the maximum recognition range (corresponding to the recognition distance) that the camera can achieve is the range combined by the recognition ranges of the at least two lens assemblies. On the one hand, the recognition distance of the camera is farther. On the other hand, the monitoring is clearer. At least one of these two aspects makes the camera convenient to use. Finally, because the camera of the present application includes at least two lens assemblies, for the camera with this technical concept, when the number of lens assemblies is different, the camera has different forms. Thus, cameras with different recognition distances are realized to meet the requirements of different recognition distances and are convenient to use. For example, for rail transit, the camera can be selected according to the recognition distance of the current monitored section, which is convenient to use and will not cause the situation that the recognition distance of the camera does not match the actual recognition distance. That is to say, when the recognition distance is relatively short, a camera with two lens assemblies is installed on this section. When the recognition distance is relatively long, a camera including three lens assemblies is installed on this section. If there is only one type of camera (such as 0 - 75m), when only the range of 0 - 50m needs to be monitored at this section, the camera that can monitor 0 - 75m does not match the distance of 0 - 50m, resulting in waste and inconvenient use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the camera of the present application including one lens assembly;

[0016] Figure 2 is a schematic diagram of the camera of the present application including two lens assemblies;

[0017] Figure 3 is a schematic diagram of the camera of the present application including three lens assemblies;

[0018] Figure 4 is an exploded view of the camera of the present application;

[0019] Figure 5 is a schematic diagram of the lens module composed of each lens assembly and the lens bracket of the present application assembled with the front cover;

[0020] Figure 6 is an exploded view of each lens assembly and the lens bracket of the present application, and is also used to illustrate that the angle of the lens assembly is adjustable;

[0021] Figure 7 is an exploded view of the first lens assembly of the present application;

[0022] Figure 8 is an exploded view of the second lens assembly of the present application;

[0023] Figure 9 is an exploded view of the third lens assembly of the present application;

[0024] Figure 10It is a schematic diagram of the third lens assembly of the present application assembled on the lens bracket, and the lens bracket has already been assembled with the first lens assembly and the second lens assembly;

[0025] Figure 11 It is a schematic diagram of the first lens assembly and the second lens assembly mounted on the lens bracket of the present application, and the adjusting member is in a disassembled state;

[0026] Figure 12 It is a partial cross-sectional view of the assembly formed by the third lens assembly and the lens bracket of the present application, showing the dispensing area;

[0027] Figure 13 It is a schematic diagram of the main board assembly and the fuselage of the present application assembled;

[0028] Figure 14 It is a schematic diagram of the main board assembly, the fuselage and the front cover of the present application assembled;

[0029] Figure 15 It is a schematic diagram of the assembly formed by the radar and the front cover of the present application, showing the radar in the first position;

[0030] Figure 16 It is a schematic diagram of the radar of the present application rotated to the second position;

[0031] Figure 17 It is an exploded view of the radar and the front cover of the present application in a sectional state;

[0032] Figure 18 It is a schematic diagram of the camera of the present application without including the bracket, showing the cable hiding box and the fuselage in a disassembled state;

[0033] Figure 19 It is a schematic diagram of the optical port board assembled on the fuselage of the present application;

[0034] Figure 20 It is a schematic diagram of the main board assembled on the fuselage of the present application;

[0035] Figure 21 It is a schematic diagram of the national secret board assembled on the power supply heat dissipation module of the present application;

[0036] Figure 22 It is a schematic diagram of the national secret board and the power supply heat dissipation module assembled together on the fuselage of the present application;

[0037] Figure 23 It is a schematic diagram of the power board assembled on the power supply heat dissipation module and the heat dissipation module attached to the fuselage of the present application;

[0038] Figure 24 It is a schematic diagram of the camera of the present application, showing the installation of the spirit level. Detailed implementation manners

[0039] Here, in conjunction with the accompanying drawings, the technical solutions in the embodiments (or "implementation manners") of the present application will be clearly and completely described. When the following description involves the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0040] If there are terms related to directional indications or positional relationships in the embodiments of the present application (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, lateral, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships and movement conditions between components in a certain specific posture (as shown in the accompanying drawings); if this specific posture changes, then the directional indication or positional relationship will also change accordingly. In addition, the terms "first", "second", etc. involved in the embodiments of the present application are only for the purpose of convenient description and cannot be construed as indicating or implying relative importance.

[0041] See Figure 5 , Figure 6 and Figure 10 and in conjunction with Figures 1 to 4 , the present application discloses a camera. The camera is used for foreign object monitoring in rail transit. Of course, it is not limited to rail transit. For example, it can also be foreign object monitoring in road traffic, etc. The camera includes a housing 100 and at least one lens assembly. The structure of the housing 100 is not limited, and it can at least be used to install the lens assembly. In Figure 16 , the housing 100 includes a front cover 10, a fuselage 50, and a junction box 60. See Figures 1 to 3 and in conjunction with Figure 16 and Figure 24 , the housing 100 is rotatably connected to a camera bracket 200. At least two mounting parts 2011 are provided inside the housing 100. The provision of the mounting parts 2011 inside the housing 100 can be as shown in the figure, realized through the lens bracket 201, and one lens bracket 201 includes the at least two mounting parts 2011. It can also include multiple lens brackets, and each lens bracket includes one mounting part. There is no limit to how the mounting parts 2011 are arranged, as long as the installation of the lens assembly can be achieved. For the number of lens assemblies, see Figure 5 , Figure 6 and Figure 10 , although the implementation manner of the present application shows three lens assemblies (for the convenience of distinction, named the first lens assembly 23, the second lens assembly 24, and the third lens assembly 25 respectively). However, those skilled in the art can understand that the number of lens assemblies is not limited to three.

[0042] As Figure 1 shown, in the case where the camera has only one lens assembly (the camera is in a single-eye form), the recognition range of the camera is the recognition range of one said lens assembly.

[0043] In the case of at least two lens assemblies, the recognition ranges of the at least two lens assemblies are not equal, and the lower limit of the recognition range of one of the lens assemblies is the upper limit of the recognition range of the other lens assembly. Taking three lens assemblies as an example to illustrate the above situation: the recognition range of the first lens assembly 23 is 0 to A, and the recognition range of the second lens assembly 24 is A to B, that is, the lower limit A of the second lens assembly is the upper limit A of the recognition range of the first lens assembly. Based on this principle, it can be understood that the recognition range of the third lens assembly 25 is B to C. A more specific recognition range is as shown in Table 1 below:

[0044] Table 1

[0045]

[0046] In the case of at least two lens assemblies of the camera, the recognition range of the camera is the range formed by combining the recognition ranges of the at least two lens assemblies. For example, when two lens assemblies are installed (the camera is in a binocular form), the recognition range of one lens assembly is 0 to A, and the recognition range of the other lens assembly is A to B. Then, the recognition range of the camera is the range 0 to B formed by combining the respective recognition ranges 0 to A and A to B of the two lens assemblies (as shown in Table 1, 0m to 50m). When three lens assemblies are installed (the camera is in a trinocular form), the respective recognition ranges of the three lens assemblies 0 to A, A to B, and B to C are combined. Then, the recognition range of the camera is the combined range 0 to C (as shown in Table 1, 0m to 70m).

[0047] For the camera of the present application, the number of lens assemblies can be increased or decreased according to the specific monitoring distance. For example, when the monitoring distance increases, the number of lens assemblies installed in the camera can change from one to two; when the monitoring distance decreases, it can change from three to two or one, etc. Usually, the required number of lens assemblies has been installed before leaving the factory. However, in some cases, consumers can also install the lens assemblies according to the situation.

[0048] With the above settings, since the camera includes at least two lens assemblies, and in the case where the recognition range of the camera is the range formed by combining the recognition ranges of the at least two lens assemblies, on the one hand, the recognition distance of the camera is farther, and on the other hand, the monitoring is also clearer. For example, for foreign object monitoring in the range of 0 - 75m, because the foreign object monitoring algorithm has requirements for pixel points, one lens assembly cannot meet the pixel point requirements for 0 - 75m and cannot achieve clear monitoring of foreign objects in the range of 0 - 75m. At least one of the above two aspects makes the camera convenient to use.

[0049] Finally, since the camera of the present application includes at least two lens assemblies, for the camera with such a technical concept, different numbers of lens assemblies result in different forms of the camera. (As mentioned above, the camera includes two lens assemblies to achieve a binocular form, or the camera includes three lens assemblies to achieve a trinocular form.) Thus, cameras with different recognition distances are realized to meet the requirements of different recognition distances and are convenient to use. For example, for rail transit, it is convenient to select a camera according to the recognition distance of the current monitored section without causing the situation where the recognition distance of the camera does not match the actual recognition distance. That is to say, when the recognition distance is relatively short, a camera with two lens assemblies is installed on this section; when the recognition distance is relatively long, a camera including three lens assemblies is installed on this section. If there is only one type of camera (such as 0 - 75m), when only the range of 0 - 50m needs to be monitored at this section, the camera that can monitor 0 - 75m does not match the distance of 0 - 50m, resulting in waste and inconvenience in use.

[0050] For the variations of the above embodiments, when at least two lens assemblies are installed on the housing 100, these lens assemblies may not be fully used in some cases. For example, when three lens assemblies are all installed on the housing 100, two of them can also be used. This selective use can be achieved by software control to turn off certain lens assemblies. As set above, even when at least two lens assemblies are installed, these lens assemblies can be selectively used, making the use of the lens assemblies more convenient.

[0051] In some other embodiments, based on the case of at least two lens assemblies, the recognition range of the camera is the range merged from the respective recognition ranges of at least two lens assemblies. Therefore, in the case of at least two lens assemblies, in terms of the final form of the camera, the number of the mounting parts 2011 can be equal to the number of the lens assemblies. For example, unlike the previous case, when the camera is in a binocular form (with two lens assemblies installed), there are three mounting parts 2011.

[0052] In an embodiment of the present application, each lens assembly (the first lens assembly 23, the second lens assembly 24, and the third lens assembly 25) is inclined relative to the XYZ axes. The farther the recognition distance of the lens assembly is, the smaller the inclination angle of the lens assembly. For example, the recognition range of the first lens assembly 23 is 0 to 25 m, and the recognition range of the second lens assembly 24 is 25 m to 50 m. Thus, the recognition distance of the second lens assembly 24 is farther than that of the first lens assembly 23, and then, the inclination angle of the second lens assembly 24 is smaller than that of the first lens assembly 23. In short, at least one of the lens assemblies is inclined relative to at least one of the XYZ axes. The farther the recognition distance of the lens assembly is, the smaller the inclination angle of the lens assembly. In this way, it is convenient to ensure that each lens assembly can better monitor the scene within its own recognition range.

[0053] As follows, taking the example that each lens assembly is installed on the same lens bracket 201, the installation of each lens assembly will be described. Since each lens assembly is installed on the same lens bracket 201, the lens bracket 201 can also be called the lens general assembly bracket.

[0054] See Figure 7 , the installation of the first lens assembly 23: The sheet metal 232 of the first lens assembly of the first lens assembly 23 and the front lens plate 233 are locked by screws into an assembly. The screws pass through the sheet metal 232 of the first lens assembly and the front lens plate 233 and are locked to the lens (the first lens 231) of the first lens assembly 23. Subsequently, the first lens 231 is locked to the first lens assembly bracket 234.

[0055] See Figure 8 , the installation of the second lens assembly 24: The lens (for the convenience of distinction, called the second lens 241) of the second lens assembly 24 and the sheet metal 242 of the second lens assembly are fixed with screws. Then, the assembly formed by the second lens 241 and the sheet metal 242 of the second lens assembly is installed on the second lens assembly bracket 243. Finally, the second lens assembly driving member 244 is fixed on the sheet metal 242 of the second lens assembly.

[0056] See Figure 9 , the assembly relationship among the third lens 251, the sheet metal 252 of the third lens assembly, the third lens assembly bracket 253, and the driving plate 254 of the third lens assembly of the third lens assembly 25 is the same as that of the first lens assembly 23, and will not be described in detail.

[0057] See Figure 5 、 Figure 6 、 Figure 10 and Figure 11 Combined with Figure 9 , the third lens assembly 25 is then installed on the lens bracket 201 through the mounting screws 202.

[0058] See Figure 5 , Figure 6 and Figure 10 and in combination with Figure 8 , the first lens assembly 23, the second lens assembly 24, and the third lens assembly 25 are respectively mounted on the lens bracket 201 through mounting screws 202, and the respective mounting surfaces are mated with the corresponding mating surfaces on the lens bracket 201, which can cause the corresponding lens assemblies to tilt in the XYZ axis directions.

[0059] For the lens assembly, the cumulative tolerances of the components of the lens assembly cause the imaging quality to deteriorate accordingly, which is related to the distance of recognition. For example, the farther the recognition distance, even the cumulative tolerances of smaller components can be amplified, resulting in a deterioration of the imaging quality. Therefore, it is necessary to adjust the tilt angle of the lens assembly with respect to at least one of the XYZ axes. In the embodiments of the present application, see Figure 5 , Figure 6 and Figure 10 and the foregoing Table 1, the upper limit of the recognition range of the third lens assembly 25 is the largest (corresponding to the farthest recognition distance), and the cumulative tolerances of the components of the third lens assembly 25 are more likely to cause the imaging quality to deteriorate. The first lens assembly 23 and the second lens assembly 24 have relatively closer recognition distances (of course, not limited to the recognition distances corresponding to the recognition ranges shown in Table 1 above). Even if there are cumulative tolerances of components, such cumulative tolerances do not cause as much deterioration of the imaging quality as the cumulative tolerances of the third lens assembly 25. Therefore, in the embodiments of the present application, only the tilt angle of the third lens assembly 25 is adjustable. However, those skilled in the art can understand that the tilt angle of each lens assembly (or some lens assemblies) can be adjustable. In short, at least the lens assembly with the largest upper limit of the recognition range (i.e., the farthest recognition distance) is connected to the lens bracket 201 through an adjustment assembly (in the present application, the first adjustment assembly 311 and the second adjustment assembly 312), and the adjustment assembly adjusts the tilt angle of the third lens assembly 25. The lens bracket 201 here can be a bracket that only assembles the third lens assembly 25, or a bracket that assembles all the lens assemblies. In short, the lens bracket 201 is at least used to assemble the lens assembly with the farthest recognition distance (such as the third lens assembly 25).

[0060] With the above settings, by adjusting the tilt angle of the lens assembly through the adjustment assembly, it is possible to avoid the inability to realize the product function due to the cumulative tolerances of the product parts, which is applicable to the splicing scenario of high-precision lens assemblies and improves the applicability of the parts.

[0061] As for how to set the adjustment assembly and the structure of the adjustment assembly is not limited, as long as the function can be realized. The following describes an embodiment of the adjustment assembly.

[0062] SeeFigure 6 , Figure 10 and Figure 11 , the camera includes a lens bracket 201 and a fixing mechanism 4. The lens assembly whose tilt angle is to be adjusted (which refers to the third lens assembly 25 in the embodiments of the present application) includes opposite first side 21 and second side 22. The first side 21 is fixed to the lens bracket 201 through the fixing mechanism 4. The structure of the fixing mechanism 4 is not limited as long as it can fix the first side 21 to the lens bracket 201. In the embodiments of the present application, the fixing mechanism 4 is a screw. There are multiple adjusting components (not limited to the two adjusting components of the first adjusting component 311 and the second adjusting component 312 marked in the figure), and multiple said adjusting components are all arranged on the second side 22 of the lens assembly (the third lens assembly 25) and connect the second side 22 to the lens bracket 201.

[0063] With the above settings, the first side 21 of the lens assembly is fixed, and the second side 22 opposite to the first side 21 is connected to the lens bracket 201 through the adjusting components. Thus, the angle adjustment is achieved through the adjusting components located on the second side 22, and the adjustment is convenient.

[0064] See Figure 6 , the adjusting components include a first adjusting component 311 and a second adjusting component 312; the fixing mechanism 4 is located on the perpendicular bisector of the line connecting the first adjusting component 311 and the second adjusting component 312.

[0065] With the above settings, the fixing mechanism 4 is located on the perpendicular bisector of the line connecting the first adjusting component 311 and the second adjusting component 312, so the adjustment is convenient and accurate.

[0066] See Figure 6 and in combination with Figure 11, both the first adjustment component 311 and the second adjustment component 312 include an elastic member 31 and an adjustment member 32. Those skilled in the art can understand that as long as one of the first adjustment component 311 and the second adjustment component 312 includes the elastic member 31 and the adjustment member 32. The elastic member 31 is not limited. In the embodiments of the present application, the elastic member 31 is a spring. The elastic member 31 abuts against the second side 22 and the lens holder 201. The abutment can be a direct abutment or an indirect abutment. The adjustment member 32 rotates in different directions to change the deformation of the elastic member 31 to achieve adjustment. Taking the adjustment member 32 as an adjustment screw and the elastic member 31 as a spring as an example, when the adjustment member 32 rotates in the first direction, the elastic member 31 can be compressed. When the adjustment member 32 rotates in the second direction opposite to the first direction, the compression amount of the elastic member 31 changes (that is, the current compression amount of the elastic member 31 decreases relative to before and changes in the direction of restoring deformation). In this way, the tilting angle adjustment of the lens assembly is achieved.

[0067] As set above, since the adjustment component includes the elastic member 31 and the adjustment member 32, and the adjustment member 32 rotates in different directions to cause the elastic member 31 to deform to achieve adjustment, the adjustment is convenient.

[0068] In the embodiments of the present application, referring to Figure 11 , the lens holder 201 is provided with a mounting post 2013. The structure of the mounting post 2013 is not limited and can be a BOSS post. The height of the mounting post 2013 into which the elastic member 31 is sleeved is less than the ultimate compression amount of the elastic member 31 to prevent the elastic member 31 (such as a spring) from failing and being unable to be adjusted.

[0069] Referring to Figure 12 , a dispensing area 250 is formed between the lens assembly whose tilting angle is adjusted and the lens holder 201. The structure of the dispensing area 250 is not limited. For example, the dispensing area 250 is a dispensing groove. After the lens assembly (the third lens assembly 25 in the present application) whose tilting angle is adjusted is installed and the tilting angle is adjusted, glue is dispensed in the dispensing area 250 to fix the lens assembly whose tilting angle is adjusted.

[0070] As set above, by dispensing glue in the dispensing area 250 to fix the lens assembly whose tilting angle is adjusted, on the one hand, the fixing of the lens assembly is convenient. On the other hand, compared with setting a fixing structure for fixing, when the fixing structure is used for fixing, it may cause loosening between the elastic member 31 and the adjustment member 32, so that the adjusted tilting angle changes and the tilting angle needs to be adjusted again. However, for glue fixing, only glue needs to be dispensed, which will not cause loosening between the elastic member 31 and the adjustment member 32. Furthermore, it ensures that the adjusted tilting angle will not change.

[0071] See Figure 5 and Figure 6 and Figure 10 and Figure 11 , where the at least two lens assemblies are arranged in an L shape to have a corner area 2102. See Figures 1 to 3 , the camera includes a fill light assembly 30, and the fill light assembly 30 is assembled to the front cover 10 and located in the corner area 2102. In an embodiment of the present application including a first lens assembly 23, a second lens assembly 24, a third lens assembly 25, and a fill light assembly 30, see Figures 1 to 3 and in combination with Figure 14 and Figure 15 shown, the layout of these four components is generally in a cross shape.

[0072] With the above settings, by arranging the lens assemblies in an L shape to have a corner area, and the fill light assembly 30 is located in the corner area 2102, in this way, the layout of the lens assembly and the fill light assembly 30 is compact (for example, reducing the size of the camera in the height direction), which is beneficial to reducing the volume of the camera and also beneficial for the camera to be applicable to scenarios such as tunnels.

[0073] In an embodiment of the present application, see Figure 1 , the recognition distance of the first lens assembly 23 is the closest, the inclination angle of the lens (the first lens 231) is relatively large, corresponding to the lower right corner of the camera. See Figure 2 , the recognition distance of the second lens assembly 24 is farther, the inclination angle of the lens (the second lens 241) is smaller, and the second lens assembly 24 is located at the intersection, that is, on the upper right side of the camera; see Figure 3 , the recognition distance of the third lens assembly 25 is the farthest, the inclination angle of the lens (the third lens 251) is even smaller, and the third lens assembly 25 is located at the upper left corner of the camera.

[0074] In an embodiment of the present application, see Figure 3 , the fill light assembly 30 includes a first row of fill light lamps 301 and a second row of fill light lamps 302. The first row of fill light lamps 301 is lower than the second row of fill light lamps 302 to fill light for the first lens assembly 23; among the second row of fill light lamps, two fill light lamps close to the second lens assembly fill light for the second lens assembly 24; the other two fill light lamps fill light for the third lens assembly 25.

[0075] With the above settings, due to the aforementioned lens assemblies being arranged in an L shape, and the fill light lamps of the fill light assembly 30 filling light for the corresponding lens assemblies, while ensuring that the layout of the camera is compact and the volume is small, the imaging of each lens assembly is good, and thus, the camera can monitor the environment at different distances better.

[0076] In some embodiments, the housing 100 includes a front cover 10 and a fuselage 50. The front end of the fuselage 50 and the front cover 10 enclose a front sealed cabin. There is no limitation on how to form the front sealed cabin. For example, a seal is provided between the front cover 10 and the fuselage 50 to form the front sealed cabin. Refer to Figure 13 , only one sealing method of a front seal 500 is described below. The front cover screw 102 assembles the front cover 10 and the fuselage 50. Thus, the front seal 500 seals the gap between the front cover 10 and the fuselage 50 to form a seal. Other sealed parts can refer to this sealing method. The camera includes a light supplement component 30 for supplementing light to the installed lens assembly (refer to Figures 1 to 3 ), refer to Figures 1 to 4 and in combination with Figure 5 , the light supplement component 30 is assembled on the front cover 10 and dissipates heat through the front cover 10.

[0077] The installed lens assembly is located in the front sealed cabin, and the heat of the installed lens assembly dissipates into the front sealed cabin and then dissipates heat from the fuselage. For example, in the case of installing two lens assemblies, the heat of the two lens assemblies dissipates to the front sealed cabin and then dissipates heat from the fuselage.

[0078] The camera includes a main board assembly 70 for controlling the installed two lens assemblies (for example, the aforementioned one lens assembly, two lens assemblies or three lens assemblies installed). The main board assembly 70 is as shown in Figure 13 and Figure 14 . The main board assembly 70 is a carrier for controlling the core circuit system, hardware devices and software programs of components such as the lens assembly of the camera. In the embodiments of the present application, the main board assembly includes an optical port board 701, a main board 702, a national encryption board 703, a power board heat dissipation module 704 and a power board 705. The optical port board 701 is used to access optical fibers, convert and transmit optical fiber signals. The main board 702 realizes the functions of the whole machine and image data processing. The national encryption board 703 encrypts the camera. The power board heat dissipation module 704 dissipates heat from the power board. The power board 705 is used to access power and convert voltage. The front sealed cabin includes a rear end bulkhead 501 and a side bulkhead 502 on the side of the fuselage. A part of the components of the main board assembly 70 are attached to the rear end bulkhead 501, and another part of the components of the main board assembly 70 are attached to the side bulkhead 502. Through the aforementioned attachment, the heat of the main board assembly 70 dissipates heat through the fuselage 50.

[0079] As described above, the front sealed cabin is formed by the front cover 10 and the fuselage 50. The lens assembly and the main board assembly 70 are located inside the front sealed cabin, and the supplementary light assembly 30 is assembled on the front cover 10. On the one hand, it is convenient for wiring between the lens assembly, the supplementary light assembly 30 and the main board assembly 70, which can improve the wiring efficiency and effectively control the internal wire length of the product. On the other hand, by forming the front sealed cabin, the airtightness inside the camera can be ensured. Finally, by using the front cover 10 and the fuselage 50 for heat dissipation, the components of the supplementary light assembly 30 and the main board assembly 70 are dissipated through different heat dissipation parts, improving the space utilization rate and increasing the heat dissipation efficiency. In addition, if the main board assembly 70 is connected to the front cover 10, since the front cover is used to install the lens assembly, at this time, connecting parts such as sheet metal need to be set between the main board assembly 70 and the front cover 10, and heat dissipation needs to be carried out through the connecting parts, etc. However, in this application, the relevant components of the main board assembly 70 are assembled with the fuselage 50 and directly dissipate heat through the fuselage 50 without sheet metal conversion for heat dissipation.

[0080] As follows, the implementation method of how the optical port board 701, the main board 702, the national secret board 703, the power board heat dissipation module 704 and the power board 705 are assembled with the fuselage 50 for heat dissipation is as follows:

[0081] See Figure 19 , first, fix the optical port board 701 on the fuselage 50 with three screws. The optical port board 701 is attached to the rear bulkhead 501 of the fuselage 50 for heat dissipation, and the external optical fiber is inserted into the optical port board 701.

[0082] See Figure 20 , then fix the main board 702 to the fuselage 50. The main board 702 is fixed and locked with 3 screws and 3 studs. The back of the main board 702 is attached to the rear bulkhead 501 of the fuselage 50 for heat dissipation.

[0083] See Figure 21 , first fix the national secret board 703 to the power board heat dissipation module 704, and then fix the national secret board 703 and the power board heat dissipation module 704 together to the studs of the main board 702.

[0084] See Figure 22 , then fix the power board 705 to the power board heat dissipation module 704. See Figure 23 , the power board 705 is attached to the side bulkhead 502 of the fuselage 50 for heat dissipation through the power board heat dissipation module 704 (for example, through the sheet metal 7041 on the power board heat dissipation module 704).

[0085] See Figure 16 、 Figure 18 and Figure 24, the housing 100 includes a wire storage box 60. The wire storage box 60 is assembled at the rear end of the fuselage 50 and forms a rear sealed compartment with the fuselage 50. For example, the camera includes a rear seal 609 and a junction box screw 600. When the junction box 60 is assembled with the fuselage 50 through the junction box screw 600, the rear seal 609 is pressed to be sealed, forming a rear sealed compartment. Of course, the places that need to be sealed depend on the specific product. In some embodiments, in addition to the rear seal 609, other seals are also included. The heat of the main board assembly 70 is also dissipated into the rear sealed compartment through the rear bulkhead 501. The external cable 604 passes through the wire storage box 60 into the rear sealed compartment and is connected to the internal cable 503 on the rear bulkhead 501.

[0086] With the above settings, the heat of the main board assembly 70 is also dissipated into the rear sealed compartment through the rear bulkhead 501. In this way, combined with the heat dissipation through the front cover and the fuselage mentioned above, the heat dissipation efficiency is high. Moreover, by setting the front sealed compartment and the rear sealed compartment, these two sealed compartments are independent of each other and do not affect each other, which is more conducive to ensuring the airtight stability of each (for example, when the rear sealed compartment is used for operations such as wiring and the wire storage box is disassembled, the front sealed compartment is still in a sealed state, meeting requirements such as waterproofing and airtightness). Finally, the external cable 604 passes through the wire storage box 60 and is connected to the internal cable 503 on the rear bulkhead 501 in the rear sealed compartment. Combined with the connection lines between the main board assembly 70, the supplementary light assembly 30, and the lens assembly, the connection lines of the camera are also convenient.

[0087] In some embodiments of the present application, the junction box 60 includes a waterproof joint 602 for the external cable 604 to pass through and a fastener 603. The waterproof joint 602 includes a seal. The fastener 603 fastens the waterproof joint 602 so that the seal seals the external cable 604. The fastener 603 is not limited to a nut, as long as it can achieve the function. When the fastener 603 is a nut, when the external cable 604 passes through the waterproof joint 602, it needs to pass through the sealing ring (such as a sealing ring) of the waterproof joint 602, and the fastener 603 is tightened so that the seal seals the external cable 604.

[0088] With the above settings, when the external cable 604 passes through the waterproof joint 602 and is connected to the internal cable 503, it can be hidden in the space formed by the junction box 60 and the fuselage 50, avoiding cable exposure. The fastener 603 fastens the waterproof joint 602 so that the seal seals the external cable 604, with good sealing effect and better waterproof performance.

[0089] In some embodiments of the present application, the junction box 60 is connected to the fuselage 50 through the anti-falling member 601. The structure of the anti-falling member 601 is not limited. For example, it is an anti-falling rope, as long as it can achieve the anti-falling function.

[0090] With the above settings, since the junction box 60 is connected to the fuselage 50 through the anti-drop part 601, in this way, when the junction box 60 is opened, the junction box 60 will still be connected to the fuselage 50 through the anti-drop part 601 and will not fall off, which is convenient for the user to wire and construct.

[0091] In addition to the above components, refer to Figure 18 , an SD card cover 5021 is further provided on the fuselage 50.

[0092] Refer to Figures 1 to 3 , Figures 14 to 18 and Figure 24 , the camera includes a radar 40. The radar 40 is located at the top of the front cover 10 and is rotatably connected to the front cover 10 through a rotating mechanism (the rotating mechanism is not limited to components such as the rotating shaft described later) and can be locked in the rotated position through a locking mechanism 401. The cable of the radar 40 enters the front sealing cabin from the inside of the rotating mechanism and is connected to the main board assembly 70.

[0093] With the above settings, the radar 40 is located at the top of the front cover 10, which can ensure that the radar 40 rotates at various angles without being blocked, and at the same time ensure that the product volume is reduced as much as possible. Because the radar is located at the top of the front cover 10, it does not occupy the horizontal space of the housing, which is especially suitable for the monitoring of rail transit. In addition, the radar 40 is located at the top of the front cover 10, and the cable between the radar 40 and the main board assembly 70 is routed in the aforementioned manner. On the one hand, the wiring efficiency can be improved and the internal wire length of the product can be effectively controlled; on the other hand, the rotation of the radar 40 does not affect the wiring between the radar 40 and the main board assembly 70, ensuring the sealing performance of the front sealing cabin of the camera.

[0094] In some embodiments, refer to Figure 17 , the radar 40 includes a radar front cover 4001, a radar module 4002, a radar rear shell 4003, radar screws 4004, etc. The radar module 4002 can be used to monitor the position of a vehicle (such as a vehicle in rail transit). The radar module 4002 can be first installed on the radar front cover 4001, and then the radar front cover 4001 is locked to the radar rear shell 4003 through the radar screws 4004. Thus, the radar front cover 4001 and the radar rear shell 4003 form an installation space. The radar module 4002 is located in the installation space. A locking mechanism 401 is provided between the radar 40 and the housing 100. The radar 40 rotates relative to the housing 100 and is locked in the rotated position by the locking mechanism 401.

[0095] Refer to Figure 17, A description of an implementation manner in which the radar 40 and the fuselage 50 are rotationally connected through a rotating mechanism is as follows: The radar 40 includes a rotating shaft 402. A cable passes through the rotating shaft 402 and enters the front seal chamber. The housing 100 includes a rotating shaft hole 101. In this implementation manner, the rotating shaft hole 101 is provided in the front cover 10. The camera includes an oil seal 403, an oil seal mounting member 404 (such as a pressing plate), and a rotating shaft mounting member 405 (such as a pressing plate). The oil seal 403 is located in the rotating shaft hole 101 and is fixed by the oil seal mounting member 404. There is no limit on how it is fixed. In the implementation manner of this application, after the oil seal 403 is located in the rotating shaft hole 101, the oil seal mounting member 404 is locked to the front cover 10 by an oil seal fixing screw 406. Thus, the oil seal 403 is fixed. The rotating shaft 402 is inserted into the oil seal 403 and is fixed by the rotating shaft mounting member 405. There is also no limit on how it is fixed. In this application, a silica gel pad 407 is first installed on the front cover 10. After the rotating shaft 402 is inserted into the oil seal 403, the rotating shaft mounting member 405 is fixed from the inside of the front cover 10 through a rotating shaft fixing screw 408. Thus, the rotating shaft 402 is pressed and can rotate relative to the front cover 10. Furthermore, the radar 40 can rotate relative to the front cover 10.

[0096] With the above settings, through the cooperation of the rotating shaft 402, the oil seal 403, the rotating shaft mounting member 405, and the oil seal mounting member 404, the rotation of the radar 40 is convenient and the installation is convenient. Moreover, because the oil seal 403 is provided, the radar 40 rotates flexibly and can prevent water, etc.

[0097] A description of the structure of a locking mechanism is as follows: Refer to Figure 15 , Figure 16 and Figure 24 , Figure 15 and Figure 24 show the position where the radar 40 is not rotated, Figure 16 show the position where the radar 40 is rotated. The locking mechanism includes a locking hole 4011 provided on the fuselage 50, an edge 4012 provided at the bottom of the radar 40 and extending circumferentially around the radar 40, and a locking member 4013. When the radar 40 rotates to the required angle, the locking member 4013 locks with the locking hole 4011 and presses the edge 4012. Thus, the radar 40 is fixed at the rotated position.

[0098] With the above settings, the locking mechanism 401 includes the locking hole 4011, the edge 4012, and the locking member 4013. By locking the locking member 4013 with the locking hole 4011 to compress the edge 4012, it is not only convenient to lock but also facilitates the radar 40 to rotate relative to the housing 100 (front cover 10) without detaching from the front cover 10. For example, only need to loosen the locking member 4013 a little, rotate the radar 40 to the desired position, and then tighten the locking member 4013 to lock the radar 40 in the rotated position.

[0099] Based on the function of the locking member 4013, the locking member 4013 is not limited to a screw with a nut. When locking, the screw rod is locked with the locking hole 4011, and the nut compresses the edge 4012.

[0100] See Figure 16 and Figure 24 , a U-shaped notch 504 is provided at the rear end of the fuselage 50. The U-shaped notch 504 includes parallel and opposite notch side walls 5041 and an arc wall 5042 connected to the notch side walls 5041. The bottom wall of the U-shaped notch is in the horizontal plane. The camera includes a circular spirit level 80, and the spirit level 80 is placed on the bottom wall of the U-shaped notch 504 and contacts the arc wall 5042.

[0101] With the above settings, through the U-shaped notch, the bottom wall of the U-shaped notch 504 is in the horizontal plane, and the circular spirit level 80 is placed on the bottom wall of the U-shaped notch 504 and contacts the arc wall 5042. In this way, the installation of the spirit level 80 is convenient, and for the manufacture of the fuselage 50, compared with setting a circular groove to place the spirit level, there is no need to set a slider, which is convenient for demolding.

[0102] It should be noted that the technical solutions or technical features described in the above embodiments can be combined or supplemented with each other without conflict. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the drawings; all modifications, equivalent replacements, improvements, etc. made within the spirit and principle of this application shall be included within the scope of protection of this application.

Claims

1. A camera, characterized in that: The camera comprises a housing and at least two lens assemblies located in the housing; The recognition ranges of the at least two lens assemblies are not equal, and the lower limit of the recognition range of one of the lens assemblies is the upper limit of the recognition range of the other lens assembly, and the recognition range of the camera is the combined range of the recognition ranges of the at least two lens assemblies; The housing comprises a front cover and a fuselage; the front end of the fuselage and the front cover form a front sealed cabin; The camera comprises a fill light assembly installed on the lens assembly for fill light, the fill light assembly is assembled on the front cover and dissipates heat through the front cover; The installed lens assembly is located in the front sealed cabin, and the heat of the installed lens assembly is dissipated into the front sealed cabin and dissipated from the fuselage; The camera also includes a mainboard assembly that controls the installed lens assembly and is located in the front sealed cabin; the front sealed cabin includes a rear bulkhead located at the rear end of the fuselage and a lateral bulkhead located on the side of the fuselage; a portion of the mainboard assembly is in contact with the rear bulkhead, and another portion of the mainboard assembly is in contact with the lateral bulkhead, so that the heat of the mainboard assembly can be dissipated through the fuselage.

2. The camera according to claim 1, characterized in that The camera includes an adjustment component and a lens bracket, the lens component with an adjusted tilt angle is connected to the lens bracket through the adjustment component, and the adjustment component is used to adjust the tilt angle of the lens component; the lens component with an adjusted tilt angle includes at least a lens component with a maximum upper limit of a recognition range.

3. The camera according to claim 2, characterized in that The camera comprises a fixing mechanism, the lens assembly whose tilt angle is adjusted comprises a first side and a second side opposite to each other, and the first side is fixed to the lens bracket via the fixing mechanism; There are multiple adjusting components, and the multiple adjusting components are all arranged on the second side and connect the second side and the lens bracket.

4. The camera according to claim 3, characterized in that The multiple adjustment components include a first adjustment component and a second adjustment component, at least one of the first adjustment component and the second adjustment component includes an elastic member and an adjustment member, the elastic member abuts against the second side and the lens holder; the adjustment member is adjusted by rotating in different directions to change the deformation of the elastic member.

5. The camera according to claim 3, characterized in that: A glue spotting area is formed between the second side of the lens assembly with adjusted tilt angle and the lens bracket. After the angle of the lens assembly with adjusted tilt angle is adjusted, glue is applied to the glue spotting area to fix the lens assembly with adjusted tilt angle.

6. The camera according to claim 1, characterized in that The at least two lens assemblies are arranged in an L shape to have a corner area; the housing includes a front cover, and the camera includes a fill light assembly, which is assembled on the front cover and located in the corner area.

7. The camera according to claim 1, characterized in that The shell includes a wire hiding box, which is assembled at the rear end of the fuselage and forms a rear sealed cabin with the fuselage; the rear sealed cabin and the front sealed cabin share the rear end cabin wall; the heat of the mainboard assembly is also dissipated into the rear sealed cabin through the rear end cabin wall; external cables pass through the rear sealed cabin from outside the wire hiding box and are connected to internal cables on the rear end cabin wall.

8. The camera according to claim 1, characterized in that The camera includes a radar, which is located on the top of the front cover and is rotatably connected to the front cover through a rotating mechanism and can be locked in the rotated position through a locking mechanism; the cable of the radar enters the front sealed cabin from the inside of the rotating mechanism and is connected to the mainboard assembly.

9. The camera according to claim 8, characterized in that The locking mechanism includes a locking hole arranged on the fuselage, an edge arranged on the bottom of the radar and extending circumferentially around the radar, and a locking piece; when the radar is rotated to a desired angle, the locking piece locks with the locking hole and presses the edge.

Images