CN110691177B

CN110691177B - Multi-lens camera

Info

Publication number: CN110691177B
Application number: CN201810729638.7A
Authority: CN
Inventors: 姚金波
Original assignee: Hangzhou Hikvision Digital Technology Co Ltd
Current assignee: Hangzhou Hikvision Digital Technology Co Ltd
Priority date: 2018-07-05
Filing date: 2018-07-05
Publication date: 2022-02-15
Anticipated expiration: 2038-07-05
Also published as: CN110691177A

Abstract

The embodiment of the invention provides a multi-lens camera. The multi-lens camera comprises a controller, a plurality of lenses, a plurality of infrared lamp groups, a plurality of image signal processors and an internal memory; the plurality of image signal processors are connected with the controller; the internal memory stores the mode information of the plurality of lenses; each lens in the plurality of lenses is associated with one infrared lamp group in the plurality of infrared lamp groups, and each lens is provided with one infrared filter; the controller is configured to determine a lens in the night mode; and controlling an image signal processor connected with the infrared lamp group to be started, and sending a power supply signal to the infrared lamp group to be started so as to start the infrared lamp group to be started. By changing the incidence relation between the lens and the infrared lamp group, the configurable infrared lamp light supplement is realized on the premise of not changing the hardware connection relation in the multi-lens camera, and the light supplement effect of the infrared lamp group is improved.

Description

Multi-lens camera

Technical Field

The invention relates to the technical field of matching and control between an infrared lamp and a lens, in particular to a multi-lens camera.

Background

The multi-lens camera is provided with a plurality of lenses, and the directions of the lenses can be independently adjusted in three dimensions of space so as to monitor different scenes. In actual work, scenes with dark light, such as cloudy days, night or places with insufficient light, can be monitored by using a lens allowing infrared light to pass through. In order to obtain clearer images, the optical lenses can be supplemented with infrared lamps.

In the prior art, the infrared light supplement for the camera lens can be realized by electrically connecting a group of infrared lamp sets for each camera lens in advance, one camera lens can trigger the infrared lamp sets which are configured in advance and correspond to the camera lens in a hard manner when the infrared lamp light supplement is needed, so that the infrared lamp sets are started, infrared light is emitted by the infrared lamp sets, the light intensity of the infrared light is increased in a scene which can be irradiated by the infrared lamp sets, and images shot by the multi-lens camera are clearer. However, the direction of the lens may be adjusted according to actual requirements, and the scene monitored by the lens is also changed along with the adjustment, so that after the adjustment, the overlapping area between the scene monitored by the infrared lens and the scene which can be irradiated by the pre-configured infrared lamp group is small, which causes the poor light supplement effect or even no effect of the pre-configured infrared lamp group on the infrared lens.

Disclosure of Invention

The embodiment of the invention aims to provide a multi-lens camera so as to achieve a better light supplementing effect of an infrared lamp. The specific technical scheme is as follows:

in a first aspect of embodiments of the present invention, a multi-lens camera is provided, which includes a controller, a plurality of lenses, a plurality of infrared lamp sets, a plurality of image signal processors, and an internal memory;

the plurality of image signal processors are connected with the controller, and each image signal processor is connected with one infrared lamp group in the plurality of infrared lamp groups;

mode information of the plurality of lenses is stored in the internal memory, and the mode information is used for indicating whether the plurality of lenses are in a night mode or not;

each lens in the plurality of lenses is associated with one infrared lamp group in the plurality of infrared lamp groups, and each lens is provided with an infrared filter, when the lens is in a daytime mode, the infrared filter is in a working state, and when the lens is in a night mode, the infrared filter is in a retracted state;

the infrared filter is used for cutting off infrared light incident to the lens when in the working state;

the controller is used for reading the mode information of the plurality of lenses from the internal memory and determining the lenses in the night mode; and controlling an image signal processor connected with the infrared lamp group to be started, and sending a power supply signal to the infrared lamp group to be started so as to start the infrared lamp group to be started, wherein the infrared lamp group to be started is an infrared lamp group in the plurality of infrared lamp groups and associated with the lens in the night mode.

With reference to the first aspect, in a first possible implementation manner, the internal memory is specifically configured to update mode information of a lens to which the infrared filter belongs after the infrared filter switches states.

With reference to the first aspect, in a second possible implementation manner, the controller is further configured to switch the infrared filter of the lens to be switched to a retracted state if it is detected that the lens to be switched exists in the plurality of lenses; and determining that the lens to be switched is in the night mode, and controlling the internal memory to update the mode information of the lens to be switched, wherein the lens to be switched is a lens which is shot to obtain an image with the brightness lower than a preset brightness threshold and is in the daytime mode.

With reference to the first aspect, in a third possible implementation manner, before the step of reading the mode information of the multiple lenses from the internal memory and determining the lenses in the night mode is executed, the controller is further configured to determine whether a supplementary lighting mode of the multiple-lens camera is a one-to-one binding mode;

and if the supplementary lighting mode of the multi-lens camera is the one-to-one binding mode, executing the step of reading the mode information of the plurality of lenses from the internal memory and determining the lenses in the night mode.

With reference to the third possible implementation manner of the first aspect, in a fourth possible implementation manner, after determining whether a supplementary lighting mode of the multi-lens camera is a one-to-one binding mode, if the supplementary lighting mode of the multi-lens camera is not the one-to-one binding mode, the controller is further configured to read mode information of the multiple lenses from the internal memory, and determine whether a lens in the night mode exists in the multiple lenses;

and if the lens in the night mode exists in the plurality of lenses, controlling the plurality of image signal processors to send power signals to the plurality of infrared lamp groups so as to start the plurality of infrared lamp groups.

With reference to the first aspect, in a fifth possible implementation manner, each image signal processor in the multiple image signal processes is configured to send, under the control of the controller, a pulse width modulation signal with a preset duty ratio to an infrared lamp group to which the image signal processor is connected, so as to turn on the infrared lamp group to which the image signal processor is connected, where the preset duty ratio is greater than 0.

In combination with the first aspect, in a sixth possible implementation manner, the multi-lens camera further includes an annular optical transparent cover and an annular lamp holder for being installed on the camera host of the multi-lens camera, wherein the annular lamp holder is used for being sleeved outside the plurality of lenses of the multi-lens camera and has an inclined installation surface that is annular, the plurality of infrared lamp sets are distributed along the circumferential direction of the inclined installation surface, and the annular optical transparent cover is located on the plurality of infrared lamp sets.

With reference to the sixth possible implementation manner of the first aspect, in a seventh possible implementation manner, the annular lamp holder includes an annular base and an annular lamp cover, the annular base is provided with a receiving groove, and the annular lamp cover covers a notch of the receiving groove; cables for connecting the plurality of image signal processors and the plurality of infrared lamp groups are arranged in the accommodating groove.

With reference to the seventh possible implementation manner of the first aspect, in an eighth possible implementation manner, the annular lamp holder comprises an annular sealing gasket, and the annular lamp cover is hermetically connected with the annular base body through the annular sealing gasket.

With reference to the eighth possible implementation manner of the first aspect, in a ninth possible implementation manner, the annular lamp cover and the annular sealing gasket are both provided with threading holes through which the cables pass; the threading hole is provided with a sealing thread buckle which is arranged on the cable in a penetrating way and is in sealing fit with the threading hole.

According to the multi-lens camera provided by the embodiment of the invention, the configurable infrared lamp light supplement is realized by changing the incidence relation between the lens and the infrared lamp group on the premise of not changing the hardware connection relation in the multi-lens camera, and the light supplement effect of the infrared lamp group is improved. Of course, not all of the advantages described above need to be achieved at the same time in the practice of any one product or method of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a multi-lens camera according to an embodiment of the present invention;

fig. 2 is a schematic flow chart of an infrared lamp control method according to an embodiment of the present invention;

fig. 3 is another schematic flow chart of an infrared lamp control method according to an embodiment of the present invention;

fig. 4 is an exploded view of a multi-lens camera according to an embodiment of the present invention;

FIG. 5 is a schematic view of the partial structure of FIG. 4 from another perspective;

fig. 6 is a schematic diagram of another exploded structure of a multi-lens camera according to an embodiment of the present invention;

fig. 7 is an assembly view of a partial structure of the multi-lens camera shown in fig. 6;

fig. 8 is an exploded view of a main body of a multi-lens camera according to an embodiment of the present invention;

fig. 9 is a cross-sectional view of an image pickup main body of a multi-supply camera according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a lens adjustment apparatus according to an embodiment of the present invention;

fig. 11 is a schematic structural diagram of a lens adjustment apparatus with a lens according to an embodiment of the present invention;

fig. 12 is a schematic structural diagram of a first bracket according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a multi-lens camera according to an embodiment of the present invention, which may include:

a controller 110, a plurality of lenses 120, a plurality of infrared lamp sets 130, a plurality of image signal processors 140, and an internal memory 150.

The number of the lenses 120, the infrared lamp groups 130 and the image signal processors 140 is the same, and for example, assuming that the multi-lens camera is a four-lens camera, the multi-lens camera includes four lenses 120, four infrared lamp groups 130 and four image signal processors 140.

All the image signal processors 140 are connected to the controller 110, and further, the image signal processors 140 may be integrated with the controller 110 or may be independent from the controller 110. Each image signal processor 140 is connected to one infrared lamp group 130, and different image signal processors 140 are connected to different infrared lamp groups 130.

The internal memory 150 stores therein mode information of a plurality of lenses 120, and the mode information of one lens 120 may indicate a mode in which the lens is located. Further, the mode of the lens 120 may include a daytime mode and a nighttime mode, and in other embodiments, the mode of the lens 120 may also include other modes according to actual needs. In the present embodiment, each lens 120 is provided with an infrared filter 121, and the infrared filter 121 has a cutoff effect on infrared light. When the lens 120 is in the daytime mode, the infrared filter 121 is in a working state and cuts off the infrared light incident on the lens 120, and the image sensor corresponding to the lens 120 cannot sense the infrared light or can sense only a small part of the infrared light. When the lens 120 is in the night mode, the infrared filter 121 is in the retracted state and does not block the infrared light incident to the infrared lens 120, and the image sensor corresponding to the lens 120 can sense the infrared light normally. The monitored scene monitored by lens 120 in the night mode tends to have a low visible light intensity, so the lens needs to allow infrared light to pass through in order to be able to present a clearer image, while the monitored scene monitored by lens 120 in the night mode may have a sufficient visible light intensity to present a clearer image, so infrared light may not be required to pass through.

Further, internal memory 150 may store state information of a plurality of lenses 120 in the form shown in the following table, where the second line of the table indicates that lens 120 with lens number 1 is in daytime mode:

lens numbering	In the state of
		1	Day mode
2	Day mode
		3	Night mode
4	Day mode

Each lens 120 is associated with one infrared lamp group 130, and the association relationship between the lens 120 and the infrared lamp group 130 can be represented by an association table as shown below, and the association relationship in the association table can be changed according to actual needs, for example, according to a control instruction input by a user.

Lens numbering	Infrared lamp group number
		1	2
2	2
		3	3
4	4

Wherein the second row of the association table indicates that the lens 120 with the lens number 1 is associated with the infrared lamp group 130 with the infrared lamp group number 2. Further, the association table may be stored in the internal memory 150.

Further, different lenses 120 may be associated with the same infrared light group 130. In an alternative embodiment, different infrared lamp groups 130 are associated with different lenses 120, and it is understood that, when a certain distance exists between the plurality of lenses 120 in space, the fill-in light effect of the same infrared lamp group 130 on different lenses 120 is likely to be different, and the fill-in light effect of the fill-in light of the infrared lamps by using different infrared lamp groups 130 is best for different lenses 120.

The controller 110 may read the mode information of the plurality of lenses from the internal memory to determine the lens in the night mode, and further, the controller may read the mode information periodically or according to a control command input by a user, or may read the mode information after detecting that the position or the orientation angle of the lens 120 is adjusted. In this embodiment, the controller 110 may sequentially read the mode information of the plurality of lenses 120 in a preset order, and may illustratively read the mode information of the plurality of lenses 120 in a descending order of the lens numbers.

The controller 110 may determine the group of infrared lamps 130 associated with the lens 120 in the night mode as the group of infrared lamps to be turned on, and for example, the controller 110 determines the lens 120 with the lens number 2 in the night mode, determines the group of infrared lamps 130 with the infrared lamp group number 2 as the group of infrared lamps to be turned on by querying the association table, and determines the group of infrared lamps 130 with the infrared lamp group number 2 as the group of infrared lamps to be turned on. The controller 110 controls the image signal processor 140 connected to the infrared lamp group to be turned on to transmit a power signal to the connected infrared lamp group 130 to turn on the infrared lamp group to be turned on. The power supply signal comprises a high level, and the infrared lamps in the infrared lamp group to be started are excited by the high level to be started so as to be started, and emit infrared light to the outside. In an optional embodiment, the power signal may be a Pulse Width Modulation (PWM) signal, the PWM signal includes a high level signal and a low level signal, a duty ratio of the high level signal is a preset duty ratio, the preset duty ratio may be adjusted according to actual requirements, the larger the preset duty ratio is, the higher an effective voltage of the PWM signal is, the higher an intensity of infrared light emitted by the infrared lamp set after being excited is, and conversely, the smaller the preset duty ratio is, the lower an effective voltage of the PWM signal is, and the lower an intensity of infrared light emitted by the infrared lamp set after being excited is. Therefore, the brightness of the infrared lamp set can be better controlled by using the pulse width modulation signal as the power supply signal.

In order to more clearly explain the execution logic of the controller of the multi-lens camera, referring to fig. 2, fig. 2 shows an infrared lamp control method applied to the multi-lens camera according to an embodiment of the present invention, which includes:

s201, a shot in a night mode among the plurality of shots is determined.

Furthermore, the internal memory of the multi-lens camera stores the mode information of the current working states of the lenses of the multi-lens camera, and after the working states of the lenses in the lenses are changed, the internal memory synchronously updates the stored state information. The controller may read the state information from the internal memory to determine whether the plurality of lenses are in the night mode, respectively.

S202, determining the infrared lamp group associated with the lens in the night mode according to a preset association relation, and taking the infrared lamp group as the infrared lamp group to be started.

Further, the preset association relationship may be expressed in the form of the association table, which may be referred to the related description, and is not described herein again.

And S203, controlling to start the infrared lamp set to be started.

Further, the controller may execute S202 and S203 after determining that one shot is in the night mode, continue to execute S201 until all shots are traversed after executing S203 is completed, or execute S202 and S203 after traversing all shots to determine all shots in the night mode among the multiple shots.

Referring to fig. 3, fig. 3 is a schematic flow chart of an infrared lamp control method according to an embodiment of the present invention, which may include:

s301, determining whether the current light compensation mode is in a one-to-one binding mode, if the current light compensation mode is in the one-to-one binding mode, executing S302, and if the current light compensation mode is not in the one-to-one binding mode, executing S305

In this embodiment, the user may switch the supplementary lighting mode to a one-to-one binding mode or switch from the one-to-one binding mode to another mode according to actual needs.

S302, a shot in a night mode among the plurality of shots is determined.

The step is the same as S201, and reference may be made to the description of S201, which is not described herein again.

And S303, determining the infrared lamp group associated with the lens in the night mode according to a preset association relation, and taking the infrared lamp group as the infrared lamp group to be started.

The step is the same as S202, and reference may be made to the description of S202, which is not described herein again.

And S304, turning on the infrared lamp group to be turned on.

The step is the same as S203, and reference may be made to the description of S203, which is not described herein again.

S305, it is determined whether there is a lens in the night mode among the plurality of lenses, and if there is a lens in the night mode, S306 is performed, and if there is no lens in the night mode, S307 is performed.

Further, the controller may read mode information of the plurality of lenses from the internal memory to determine whether lenses in the night mode exist in the plurality of lenses, and the controller may sequentially read the mode information of the plurality of lenses according to a preset sequence, stop continuously reading the mode information after reading that a certain lens is in the night mode, and determine that lenses in the night mode exist in the plurality of lenses.

And S306, controlling all the infrared lamp groups to be started.

It can be understood that when all the infrared lamp groups are turned on, the optimal light supplement effect can be obtained, and the user does not need to preset the association relationship between the plurality of infrared lamp groups and the plurality of lenses. However, once a lens needs to supplement light, all the infrared lamp sets are turned on simultaneously, and the generated power consumption is large.

And S307, controlling all the infrared lamp sets to be turned off.

It can be understood that, when there is no lens in the night mode in the plurality of lenses, it indicates that it is not currently necessary to use the infrared lamp set to fill light for the infrared lamps in the lenses, and therefore, the plurality of infrared lamp sets can be controlled to be completely turned off.

It can be understood that, although the plurality of infrared lamp groups are controlled by the method shown in fig. 2, the light supplement effect of the light supplement of the infrared lamps can be improved, the association relationship between the plurality of infrared lamp groups and the plurality of lenses needs to be preset by a user, the steps are complicated, the usability is poor, and the complicated setting is not necessary for a scene with low requirement on the light supplement effect. By adopting the embodiment, the good balance between usability and power consumption can be achieved on the premise of ensuring good light compensation effect according to actual requirements.

The following will describe in detail the structure of the light supplement device of the multi-lens camera according to the embodiment of the present invention, including:

referring to fig. 4-7, the multi-lens camera according to the embodiment of the present invention includes a plurality of infrared lamp sets 130, an annular optical transparent cover 420, and an annular lamp holder 430 for being mounted on a camera main body 400 of the multi-lens camera.

The annular lamp holder 430 is a mounting base for the plurality of infrared lamp sets 130, and the annular lamp holder 430 is used for being sleeved outside the plurality of lenses of the multi-lens camera, so as to implement light supplement for the plurality of lenses. The annular lamp holder 430 has an annular inclined installation surface, the infrared lamp groups 130 are distributed along the circumferential direction of the inclined installation surface, the annular optical transparent cover 420 covers the infrared lamp groups 130, the annular optical transparent cover 420 can play a role in protection, and light distribution of the multi-lens camera can be realized.

The annular lamp holder 430 is used for being installed on the camera host 400 and located outside the plurality of lenses, the plurality of infrared lamp groups 130 are installed on the annular lamp holder 430 and are installed on an annular inclined installation surface, and the annular optical transparent cover 420 covers the plurality of infrared lamp groups 130, so that the plurality of infrared lamp groups 130 supplement light for the plurality of lenses of the multi-lens camera.

Compared with the multi-lens camera adopting a single light supplement device in the prior art, the multi-lens camera provided by the embodiment of the invention can reduce the space occupied by the light supplement related construction and can also reduce the installation operation of operators.

The ring-shaped lamp holder 430 may include a ring-shaped base 431 and a ring-shaped lamp cover 433, the ring-shaped lamp cover 433 is mounted on the camera main body 400 of the multi-lens camera, the ring-shaped base 431 is provided with a receiving groove 4311, and the ring-shaped lamp cover 433 covers a notch of the receiving groove 4311. The cable 440 connected to the ir lamp set 130 is disposed in the receiving groove 4311, and the cable 440 supplies power to the ir lamp set 130. In the above structure, the receiving groove 4311 can facilitate the routing of the cable 440 of the multi-lens camera. In order to improve the dustproof and waterproof effects, the annular lamp holder 430 disclosed in the embodiment of the present invention may further include an annular gasket 432, and the annular lamp cover 433 is hermetically connected to the annular base 431 through the annular gasket 432. The annular lamp cover 433 is hermetically connected to the annular base 431 by the annular gasket 432, and can ensure sealing of the housing groove 4311. The multi-lens camera provided by the embodiment of the invention has better explosion-proof capability by adopting the structure, so that the multi-lens camera can better adapt to shooting in an explosion-proof environment.

In the embodiment of the present invention, the power source of the infrared lamp set 130 is a corresponding image signal processor, and both the annular lamp cover 433 and the annular gasket 432 may be provided with a threading hole 4332 for the cable 440 to pass through, and the cable 440 passes through the threading hole 4332, thereby electrically connecting the image signal processor and the infrared lamp set 130. In general, the image signal processor is disposed in the main camera 400, as shown in fig. 7, in this case, one end of the cable 440 penetrates the multi-lens camera to take power, and the other end penetrates the main camera 400 to supply power.

In order to ensure the sealing at the threading hole 4332, in a preferred embodiment, the threading hole 4332 is provided with a sealing thread 4331 which is arranged on the cable 440 in a sealing manner and is in sealing fit with the threading hole 4332.

As described above, the infrared lamp sets 130 are plural, and in order to facilitate the routing of the cable 440 in the receiving groove 4311, in a preferred embodiment, the receiving groove 4311 may be provided with the wire harness buckle 4312, and the wire harness buckle 4312 is used for fixing the cable 440, so as to better arrange the trend thereof and avoid the disorder of the wiring.

The receiving groove 4311 may have various structures. Referring again to fig. 4 and 5, the receiving groove 4311 may be a flaring structure with a gradually increasing width of the notch. In a specific embodiment, the annular base 431 may include an inner annular wall 4314 and an outer annular wall 4315, wherein one end of the inner annular wall 4314 is connected to one end of the outer annular wall 4315, and the other end of the inner annular wall 4314 and the other end of the outer annular wall 4315 extend obliquely away from each other. The above-mentioned connection relationship between the inner annular wall 4314 and the outer annular wall 4315 can form a receiving groove 4311 with a flared structure. The receiving groove 4311 having the above-described structure has a small volume, and the flared end thereof has a sufficient space to be coupled to the annular lamp cover 433.

Specifically, the cross section of the annular base 431 may be a V-shaped cross section, and the receiving groove 4311 may be a V-shaped groove. The V-shaped groove can better realize the annular inclined mounting surface.

Referring to fig. 4 and 6 again, the annular optical transparent cover 420 is disposed on the annular lamp holder 430, and a positioning groove 421 may be disposed on an inner wall of the annular optical transparent cover 420, and the positioning groove 421 is in spacing fit with a bottom of the annular lamp holder 430, so that the annular optical transparent cover 420 cannot move relative to the annular lamp holder 430 in a direction close to the annular lamp holder 430.

To achieve a more stable fit, the positioning groove 421 may be an annular groove extending along the bottom edge of the annular optical transparent cover 420. Under the general condition, the axis direction of many camera lenses camera is vertical direction, and the notch of constant head tank 421 is up, therefore easy ponding in the constant head tank 421, in order to avoid ponding, in the preferred scheme, a plurality of sluices opening 422 have been seted up to annular groove on its circumference. A plurality of sluicing openings 422 can drain away ponding in the constant head tank 421 in time.

In order to achieve more uniform supplementary lighting, preferably, the plurality of infrared lamp sets 130 may be uniformly arranged on the circumference of the inclined installation surface.

There are various structures of the infrared lamp set 130, and referring to fig. 5 and 6 again, in an alternative embodiment, the infrared lamps in the infrared lamp set 130 include a lamp body 136 and a mounting base, and the lamp body 136 is mounted on the annular lamp holder 430 through the mounting base. Specifically, the mounting base may include a lamp panel 134, a lens 132, and a lens gland 133. The lamp body 136 is installed on the lamp panel 134, the lens 132 covers the lamp body 136, the lens gland 133 is fixedly connected with the annular lamp holder 430, and the lens 132 is clamped between the lens gland 133 and the annular lamp holder 430. Specifically, a sealing member 135 is disposed between the lens 132 and the mounting hole 4313, so as to seal the receiving groove 4311.

Specifically, the annular lamp holder 430 is provided with a mounting hole 4313, the lamp panel 134 is fixed on the inner side wall of the annular lamp holder 430, and the lamp body 136 passes through the mounting hole 4313 and is connected with the lamp panel 116; the lens cover 133 is fixed to an outer side wall of the ring-shaped lamp holder 430, the lens 132 is positioned in the mounting hole 4313, and a surface of the outer side wall of the ring-shaped lamp holder 430 is an inclined mounting surface. The lamp body 136 is an infrared lamp body, and correspondingly, the lens is an infrared lens.

The lamp panel 134 can be fixed on the annular lamp holder 430 through the metal plate heat dissipation part 131, and the metal plate heat dissipation part 131 can realize more effective heat dissipation for the lamp panel 134 and the lamp body 136, so that the accumulation of heat in the multi-lens camera is avoided.

Referring to fig. 6 again, a connecting piece 4333 may be disposed on the annular lamp cover 433, and the multi-lens camera may be fixedly connected to the camera host 400 through the connecting piece 4333 after being assembled. Specifically, the connecting sheet 4333 and the camera main unit 400 may be provided with connecting holes, and the connecting sheet 4333 and the camera main unit 400 may be fixedly connected by a threaded connector engaged with the connecting holes.

The multi-lens camera may include a mounting plate 500, and after the mainframe 400 is assembled with the multi-lens camera, the entire installation may be achieved through the mounting plate 500. Specifically, the camera host 400 can be provided with the threaded connection piece 210, the mounting disc 500 can be provided with the connecting column 510, the connecting column 510 is provided with a threaded hole, the threaded connection piece 210 is fixedly matched with the threaded hole, the camera host 400 and the mounting disc 500 are assembled, and the assembly is completed and then the whole camera host 400 is connected with the mounting base of the multi-lens camera through the mounting disc 500.

Referring to fig. 8-9, the camera head 400 includes a main housing assembly 420, a lens 120, a transparent cover 440 and a lens adjusting device 450 mounted on the main housing assembly 420, the transparent cover 440 includes a planar portion 441 and a curved portion 442 surrounding the planar portion 441, and the lens 120 is mounted on the lens adjusting device 450 and located in a space covered by the curved portion 442.

Referring to fig. 10 to 12, a lens adjusting apparatus 450 is disclosed, which includes a fixing plate 451 and at least two lens holders 452, wherein the fixing plate 451 is a base for mounting the lens holders 452 and the lens 120, and the lens 120 is disposed on the fixing plate 451 through the lens holders 452.

The lens holder 452 includes a first holder 4521, the first holder 4521 being used to mount the lens 120, the first holder 4521 being movably disposed on the fixed plate 451 so as to be movable relative to the fixed plate 451. The movement of the first support 4521 drives the lens 120 to move, so as to adjust the position of the lens 120 on the fixing plate 451.

One of the first bracket 4521 and the fixed plate 451 is provided with a first tooth groove, and the other is provided with a first engaging tooth, the first tooth groove being engaged with the first engaging tooth. The first bracket 4521 is coupled to the fixed plate 451 by engagement of the first teeth grooves with the first engagement teeth.

In the lens adjusting apparatus 450 according to the embodiment of the present invention, the lens 120 is mounted on the first support 4521, and then can move on the fixing plate 451 along with the first support 4521, so as to finally adjust the position of the lens 120 on the fixing plate 451. The first support 4521 and the fixed disk 451 are connected through engagement between the first toothed groove and the first engaging tooth, in the adjustment process, an operator can drive the first support 4521 to move by applying a certain force, in the movement process of the first support 4521, the first toothed groove and the first engaging tooth move relatively, after the adjustment is finished (the external force is removed), the engagement between the first toothed groove and the first engaging tooth can ensure that the first support 4521 is positioned at the adjusted position, and finally, the adjustment of the lens 120 is completed.

Compared with the mode of fixing the lens by the magnet in the prior art, the lens adjusting device 450 provided by the embodiment of the invention does not need to adopt a magnet with a larger volume, so that the lens adjusting device 450 disclosed by the embodiment of the invention can solve the problems of larger mass and higher cost in the mode of locking the lens by the magnet in the conventional multi-lens camera.

In an alternative embodiment, the circular edge of the fixed plate 451 is partially or entirely provided with the first teeth groove 4511, and correspondingly, the first bracket 4521 is provided with the first engagement tooth 4521 a. The first bracket 4521 is movable in the circumferential direction of the fixed disk 451 and is thereby rotatable in the circumferential direction of the fixed disk 451. The rotation of the first support 4521 drives the lens 120 to rotate, so as to adjust the position of the lens 120 on the fixing plate 451. This position adjustment is performed in a plane parallel to the fixed disk 451, which is a P-direction adjustment of the lens 120. Of course, the first tooth groove 4511 may be provided on the first bracket 4521 and correspondingly, the first engagement tooth 4521a is provided on the fixed plate 451.

The first bracket 4521 may include an elastic link 4521b, the elastic link 4521b may be provided with a first engagement tooth 4521a, and the first engagement tooth 4521a is engaged with the first slot 4511. In the embodiment of the present invention, the engagement between the first tooth groove and the first engaging tooth means that the first tooth groove and the second engaging tooth are in a positioning state when they are not subjected to an external force, and the first tooth groove and the second engaging tooth cannot move relatively; when the first tooth groove or the first engaging tooth is elastically deformed by an external force, the positioning fit between the first tooth groove and the first engaging tooth is released, so that the first tooth groove and the second engaging tooth can move relatively, and further the first support 4521 can move around the circumferential direction of the fixed disk 451, that is, the first support 4521 rotates along the circumferential direction of the fixed disk 451.

The elastic connection portion 4521b ensures that the engagement between the first tooth slot 4511 and the first engaging tooth 4521a has good elasticity through elasticity of the elastic connection portion 4521b, and under the action of an external force, the elastic connection portion 4521b is elastically deformed, so that the positioning between the first engaging tooth 4521a and the first tooth slot 4511 is released, and the first engaging tooth 4521a and the first tooth slot 4511 can rotate relative to each other.

Lens mount 452 may further include a second mount 2522, where second mount 2522 is disposed on first mount 4521, and second mount 2522 is connected to lens 120, thereby implementing connection of lens 120 to first mount 4521 through second mount 2522.

Referring to fig. 10-12 again, in an alternative embodiment, the first support 4521 may include a fastener 4521c, the fixing plate 451 is provided with an avoiding hole 2512, and the fastener 4521c passes through the avoiding hole 2512 to be fastened with the fixing plate 451, so as to achieve connection between the first support 4521 and the fixing plate 451. The engagement between the catch 4521c and the fixed disk 451 makes it possible to prevent the first support 4521 from moving in a direction perpendicular to the disk surface of the fixed disk 451, but does not affect the movement of the first support 4521 in the circumferential direction of the fixed disk 451.

The controller may be a general-purpose Processor, including a Central Processing Unit (CPU), a Network Processor (NP), and the like; but also Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

All the embodiments in the present specification are described in a related manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims

1. A multi-lens camera is characterized in that the multi-lens camera comprises a controller, a plurality of lenses, a plurality of infrared lamp sets, a plurality of image signal processors and an internal memory;

each lens of the plurality of lenses is configurably associated with at least one infrared light group of the plurality of infrared light groups,

each lens is provided with an infrared filter, when the lens is in a daytime mode, the infrared filter is in a working state, and when the lens is in a night mode, the infrared filter is in a retracted state;

when the infrared filter is in the working state, the infrared filter is used for cutting off infrared light which is incident to the lens;

the controller is used for reading the mode information of the plurality of lenses from the internal memory and determining the lenses in the night mode; and controlling an image signal processor connected with the infrared lamp group to be started, and sending a power supply signal to the infrared lamp group to be started so as to start the infrared lamp group to be started, wherein the infrared lamp group to be started is an infrared lamp group which is currently configured to be associated with the lens in the night mode in the plurality of infrared lamp groups.

2. The multi-lens camera according to claim 1, wherein the internal memory is specifically configured to update mode information of the lens to which the infrared filter belongs after the infrared filter switches state.

3. The multi-lens camera according to claim 1, wherein the controller is further configured to switch the ir filter of the lens to be switched to a retracted state if it is detected that the lens to be switched exists in the plurality of lenses; and determining that the lens to be switched is in the night mode, and controlling the internal memory to update the mode information of the lens to be switched, wherein the lens to be switched is a lens which is shot to obtain an image with the brightness lower than a preset brightness threshold and is in the daytime mode.

4. The multi-lens camera according to claim 1, wherein the controller is further configured to determine whether a fill-in mode of the multi-lens camera is a one-to-one binding mode before the step of reading the mode information of the plurality of lenses from the internal memory and determining the lenses in the night mode is performed;

5. The multi-lens camera according to claim 4, wherein the controller is further configured to, after determining whether the supplementary lighting mode of the multi-lens camera is the one-to-one binding mode, if the supplementary lighting mode of the multi-lens camera is not the one-to-one binding mode, read mode information of the plurality of lenses from the internal memory, and determine whether there is a lens in the night mode among the plurality of lenses;

6. The multi-lens camera according to claim 1, wherein each of the plurality of image signal processors is configured to send a pulse width modulation signal with a preset duty ratio to the infrared lamp set connected to the image signal processor under the control of the controller to turn on the infrared lamp set connected to the image signal processor, and the preset duty ratio is greater than 0.

7. The multi-lens camera of claim 1, further comprising an annular optical transparent cover and an annular lamp holder for mounting on the camera host of the multi-lens camera, wherein the annular lamp holder is configured to fit over the lenses of the multi-lens camera and has an annular inclined mounting surface, the infrared lamp groups are distributed along a circumferential direction of the inclined mounting surface, and the annular optical transparent cover is disposed on the infrared lamp groups.

8. The multi-lens camera according to claim 7, wherein the annular lamp holder includes an annular base provided with a receiving groove and an annular lamp cover closing over a notch of the receiving groove; cables for connecting the plurality of image signal processors and the plurality of infrared lamp groups are arranged in the accommodating groove.

9. The multi-lens camera of claim 8, wherein the annular lamp holder includes an annular gasket, and the annular lamp cover is sealingly coupled to the annular base via the annular gasket.

10. The multi-lens camera according to claim 9, wherein the annular lamp cover and the annular sealing gasket are provided with threading holes for the cables to pass through; the threading hole is provided with a sealing thread buckle which is arranged on the cable in a penetrating way and is in sealing fit with the threading hole.