A multi-eye pan-tilt camera

Abstract

The present application relates to a multi-eye pan-tilt camera, which includes: a fixed unit, a rotating unit and a conductive slip ring; the fixed unit and the rotating unit are movably connected through the conductive slip ring; the rotating unit is rotatable relative to the fixed unit; the fixed unit includes a first camera module, an image acquisition module, a data conversion receiving module and an image processing module; the first camera module is electrically connected to the image acquisition module, and the image acquisition module is electrically connected to the data conversion receiving module and the image processing module respectively; the rotating unit includes a second camera module and a data conversion sending module, and the second camera module is electrically connected to the data conversion sending module; the data conversion sending module and the data conversion receiving module are electrically connected through the conductive slip ring. The present application realizes the camera requirement of free rotation between different eyes of the multi-eye pan-tilt camera.

Description

Technical Field

[0001] The present application relates to the field of camera technology, and in particular to a multi-eye pan-tilt camera. Background Art

[0002] A multi-eye PTZ camera refers to a camera with multiple camera modules. Different camera modules are positioned independently of each other and can rotate with different PTZ devices to achieve variable field of view angles.

[0003] The existing multi-eye pan-tilt camera only supports relative rotation within a certain angle range between different camera modules. The modules are connected by ordinary direct cables and provided to the same processing system for collection, encoding and network transmission.

[0004] Binocular PTZ cameras that support rotation within a certain angle can use direct-connect cables made of special materials, such as shielded coaxial cables, to meet the requirements of high-speed signal transmission and provide them to the same processing system for collection, encoding and network transmission. However, since direct-connect cables cannot rotate freely, they cannot meet the requirements of free rotation of cameras between different cameras.

[0005] With respect to the technical problem that the multi-eye PTZ camera in the prior art cannot meet the camera requirements of free rotation between different eyes, no effective solution has been proposed yet. Summary of the invention

[0006] In this embodiment, a multi-eye pan-tilt camera is provided to solve the problem that the multi-eye pan-tilt camera in the prior art cannot meet the demand for free rotation between different eyes.

[0007] In a first aspect, a multi-eye PTZ camera is provided in this embodiment, the multi-eye PTZ camera comprising: a fixed unit, a rotating unit and a conductive slip ring; the fixed unit and the rotating unit are movably connected via the conductive slip ring; the rotating unit is rotatable relative to the fixed unit;

[0008] The fixing unit comprises a first camera module, an image acquisition module, a data conversion receiving module and an image processing module; the first camera module is electrically connected to the image acquisition module, and the image acquisition module is electrically connected to the data conversion receiving module and the image processing module respectively;

[0009] The rotating unit includes a second camera module and a data conversion and sending module, and the second camera module is electrically connected to the data conversion and sending module;

[0010] The data conversion sending module and the data conversion receiving module are electrically connected through the conductive slip ring.

[0011] In some of the embodiments, the conductive slip ring is rotatable 360°.

[0012] In some embodiments, the second camera module outputs a first image signal to the data conversion and sending module, the data conversion and sending module converts the first image signal into a second image signal, and transmits the second image signal to the data conversion and receiving module through the conductive slip ring, and the data conversion and receiving module converts the received second image signal into the first image signal.

[0013] In some embodiments, the second image signal is a low-speed low-voltage differential signal.

[0014] In some of the embodiments, the first image signal is a high-speed image signal.

[0015] In some embodiments, the fixing unit further includes a first control module, the first control module is electrically connected to the image processing module, and the first control module is used to analyze the image processed by the image processing module.

[0016] In some of the embodiments, the fixed unit is further provided with a first motor and a second motor, the first motor and the second motor are electrically connected to the first control module respectively, the first motor is used to control the horizontal rotation of the rotating unit, and the second motor is used to control the vertical movement of the rotating unit.

[0017] In some of the embodiments, a third motor and a fourth motor are further provided on the rotating unit, and the third motor and the fourth motor are electrically connected to the first control module through the conductive slip ring respectively, and the third motor is used to control the horizontal rotation of the rotating unit, and the fourth motor is used to control the vertical movement of the rotating unit.

[0018] In some of the embodiments, a fifth motor and a sixth motor are further provided on the rotating unit, and the fifth motor and the sixth motor are respectively connected to the second camera module, and the fifth motor and the sixth motor are used to control the movement of the second camera module.

[0019] In some embodiments, the fifth motor and the sixth motor are electrically connected to the first control module via the conductive slip rings, respectively.

[0020] In some of the embodiments, a second control module is further provided on the rotating unit, the second control module is electrically connected to the first control module via the conductive slip ring, and the fifth motor and the sixth motor are electrically connected to the second control module respectively.

[0021] Compared with the prior art, a multi-eye pan-tilt camera provided in this embodiment achieves the requirement of free rotation of different eyes of the multi-eye pan-tilt camera by movably connecting the fixed unit and the rotating unit by using a conductive slip ring, and converting the signal collected by the rotating unit into a low-speed and low-voltage differential signal through data conversion and using a conductive slip ring for signal transmission.

[0022] Details of one or more embodiments of the present application are set forth in the following drawings and description to make other features, objects, and advantages of the present application more readily apparent. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0024] Figure 1 It is a structural schematic diagram of a multi-eye PTZ camera in the prior art;

[0025] Figure 2 Schematic diagram of the structure of the multi-eye PTZ camera of this embodiment;

[0026] Figure 3 is a structural schematic diagram of the third camera module of the multi-eye PTZ camera of this embodiment;

[0027] Figure 4 is a structural schematic diagram of the fourth camera module of the multi-eye PTZ camera of this embodiment;

[0028] Figure 5 It is a structural schematic diagram of a multi-eye PTZ camera of the preferred embodiment;

[0029] Figure 6 It is a structural schematic diagram of another multi-eye PTZ camera of the preferred embodiment;

[0030] Figure 7 It is a structural schematic diagram of another multi-eye PTZ camera of the preferred embodiment;

[0031] Figure 8 It is a structural schematic diagram of another multi-eye PTZ camera of the preferred embodiment;

[0032] Fig. 9 It is a structural schematic diagram of another multi-eye pan-tilt camera of this preferred embodiment. DETAILED DESCRIPTION

[0033] In order to more clearly understand the purpose, technical solutions and advantages of the present application, the present application is described and illustrated below in conjunction with the accompanying drawings and embodiments.

[0034] Unless otherwise defined, the technical terms or scientific terms involved in this application shall have the general meaning understood by people with ordinary skills in the technical field to which this application belongs. The words "one", "a", "a", "the", "these" and the like in this application do not represent quantitative restrictions, and they can be singular or plural. The terms "include", "comprise", "have" and any variants thereof involved in this application are intended to cover non-exclusive inclusions; for example, a process, method and system, product or device comprising a series of steps or modules (units) is not limited to the listed steps or modules (units), but may include unlisted steps or modules (units), or may include other steps or modules (units) inherent to these processes, methods, products or devices. The words "connect", "connected", "coupled" and the like involved in this application are not limited to physical or mechanical connections, but may include electrical connections, whether directly or indirectly. The "multiple" involved in this application refers to two or more. "And / or" describes the association relationship of associated objects, indicating that there can be three relationships. For example, "A and / or B" can mean: A exists alone, A and B exist at the same time, and B exists alone. Usually, the character " / " indicates that the objects associated with each other are in an "or" relationship. The terms "first", "second", "third", etc. involved in this application are only used to distinguish similar objects and do not represent a specific ordering of the objects.

[0035] The structure of the existing multi-eye pan-tilt camera is as follows: Figure 1 As shown, Figure 1 Schematic diagram of the structure of a multi-eye PTZ camera in the prior art. Figure 1 As shown, the multi-eye PTZ camera includes a first camera module 110, a second camera module 120, a second image acquisition module 130 and a coding transmission module 140. The first camera module 110 and the second camera module 120 are connected to the second image acquisition module 130 through a direct cable 150, respectively. The multi-eye PTZ camera is a binocular PTZ camera including two camera modules. In the prior art, the multi-eye PTZ camera is a binocular PTZ camera in which different camera modules and image acquisition modules are connected through a common direct cable 150, and only supports relative rotation within a certain angle range, and is provided to the same processing system for acquisition, encoding and network transmission. For binocular PTZ cameras that support rotation within a certain angle, a direct cable 150 of a special material, such as a shielded coaxial cable, can be selected to meet high-speed signal transmission, and is provided to the same processing system for acquisition, encoding and network transmission. However, since the direct cable 150 cannot meet the free rotation, it cannot meet the camera requirements of free rotation between different cameras, that is, it cannot meet the camera requirements of free angle rotation between two camera modules.

[0036] In this embodiment, a multi-eye PTZ camera is provided. Figure 2 Schematic diagram of the structure of the multi-eye PTZ camera of this embodiment. Figure 2 As shown, the multi-eye pan-tilt camera includes: a fixed unit 210, a rotating unit 220 and a conductive slip ring 230, wherein the fixed unit 210 and the rotating unit 220 are movably connected via the conductive slip ring 230, and the rotating unit 220 is rotatable relative to the fixed unit 210.

[0037] Specifically, the fixed unit 210 includes a third camera module 211, an image acquisition module 212, a data conversion receiving module 213 and an image processing module 214; the third camera module 211 is electrically connected to the image acquisition module 212, and the image acquisition module 212 is electrically connected to the data conversion receiving module 213 and the image processing module 214. The rotating unit 220 includes a fourth camera module 221 and a data conversion sending module 222, the fourth camera module 221 is electrically connected to the data conversion sending module 222, and the data conversion sending module 222 is electrically connected to the data conversion receiving module 213 through a conductive slip ring 230.

[0038] More specifically, the fixing unit 210 may include a plurality of third camera modules 211, such as Figure 2 The camera module A1, the camera module A2, ..., the camera module An, wherein n is a natural number greater than or equal to 1. The rotating unit 220 may also include a plurality of fourth camera modules 221, such as Figure 2 The camera modules B1, B2, ..., Bm in the fixed unit 210, wherein m is a natural number greater than or equal to 1. The fixed unit 210 and the rotating unit 220 are movably connected via a conductive slip ring 230, and the conductive slip ring 230 can rotate 360°, so that the fixed unit 210 and the rotating unit 220 can continuously rotate at any angle of 360°, so that the plurality of third camera modules 211 in the fixed unit 210 and the plurality of fourth camera modules 221 in the rotating unit 220 can rotate at a free angle.

[0039] Specifically, the third camera module 211 and the fourth camera module 221 respectively acquire images, and the third camera module 211 sends the acquired first image signal to the image acquisition module 212. The fourth camera module 221 outputs the acquired first image signal to the data conversion and sending module 222, and the data conversion and sending module 222 converts the first image signal acquired by the fourth camera module 221 into a second image signal, and transmits the second image signal to the data conversion and receiving module 213 through the conductive slip ring 230, and the data conversion and receiving module 213 converts the received second image signal into a first image signal, and sends the converted first image signal to the image acquisition module 212. The image acquisition module 212 can simultaneously acquire the first image signal acquired by the third camera module 211 and the first image signal acquired by the fourth camera module 221 restored by the data conversion and receiving module 213, and the image acquisition module 212 sends the acquired first image signal to the image processing module 214 for signal processing.

[0040] More specifically, the conductive slip ring 230 has impedance discontinuity, and the use of the conductive slip ring 230 for signal transmission affects the accuracy of the data code stream of high-speed transmission. The signal transmitted through the conductive slip ring 230 needs to be processed first. Exemplarily, the signal processing here can be to reduce the signal frequency and increase the signal amplitude. In this embodiment, the first image signal obtained by the fourth camera module 221 is converted into a second image signal through the data conversion and sending module 222. The first image signal is a high-speed image signal, and the second image signal is a low-speed low-voltage differential signal. After the second image signal is transmitted through the conductive slip ring 230, the received second image signal is converted into the first image signal through the data conversion receiving module 213, thereby realizing the accurate transmission of data using the conductive slip ring 230.

[0041] In this embodiment, the fixed unit 210 and the rotating unit 220 are movably connected by a conductive slip ring 230, and the signal collected by the rotating unit 220 is converted into a low-speed low-voltage differential signal and the conductive slip ring 230 is used for signal transmission, thereby realizing the shooting requirement of free rotation between different eyes of the multi-eye pan-tilt camera.

[0042] In some of the embodiments, the data conversion sending module 222 and the data conversion receiving module 213 can be implemented using FPGA or application specific integrated circuit.

[0043] In some of the embodiments, the image processing module 214 is used to implement image compression, enhancement and restoration, matching description analysis, etc. By way of example, common image processing includes image format conversion, image correction, color management, image enhancement, image restoration, image segmentation and image analysis, etc.

[0044] In some of the embodiments, Figure 3 and Figure 4 As shown, the third camera module 211 includes a first image sensor 217 and a first lens 218, the first image sensor 217 is connected to the first lens 218, the first image sensor 217 is used to convert the optical signal collected by the first lens 218 into an electrical signal, and the first image sensor 217 of the third camera module 211 is also electrically connected to the image acquisition module 212. The fourth camera module 221 includes a second image sensor 223 and a second lens 224, the second image sensor 223 is connected to the second lens 224, the second image sensor 223 is used to convert the optical signal collected by the second lens 224 into an electrical signal, and the second image sensor 223 of the fourth camera module 221 is also electrically connected to the data conversion and transmission module 222.

[0045] Specifically, the image acquisition module 212 can simultaneously acquire the image interface signal of the first image sensor 217 and the image interface signal of the second image sensor 223 recovered by the data conversion and receiving module 213. The signal acquired by the image acquisition module 212 is usually one of MIPI, LVDS, HISPI, and parallel port, but is not limited to the above image interface signals, so as to obtain the image data of the first image sensor 217 and the second image sensor 223 for image processing, encoding and transmission.

[0046] For example, the third camera module 211 and the fourth camera module 221 can be Sony's imx185 or OmniVision's OS04. Sony's imx185 can output 2ch 150mV LVDS signals, which can be converted into 4ch 600mV signals through the data conversion and transmission module 222, with the signal rate reduced by half and the amplitude increased by 4 times; OmniVision's OS04 outputs 4ch 200mV MIPI signals, which can be converted into 8ch 600mV LVDS signals through the data conversion and transmission module, with the signal rate reduced by half and the amplitude increased by 3 times.

[0047] In some of the embodiments, Figure 2 As shown, the fixed unit 210 also includes an image encoding module 215 and a transmission module 216; the image encoding module 215 is electrically connected to the image processing module 214, and the image encoding module 215 compresses and encodes the image output by the image processing module 214; the image encoding module 215 is electrically connected to the transmission module 216, and the transmission module 216 transmits the compressed and encoded image.

[0048] Specifically, the image encoding module 215 and the transmission module 216 first complete the image data compression encoding, such as JPEG, H.265, H.264, SVAC and other encoding processing, and then transmit the data through Ethernet, HD-SDI, WIFI, 4G and other wired or wireless methods.

[0049] The present embodiment is described and illustrated below through preferred embodiments.

[0050] Figure 5 Schematic diagram of the structure of a multi-eye PTZ camera in this preferred embodiment. Figure 5 As shown, taking a binocular pan-tilt camera as an example, the binocular pan-tilt camera includes two camera modules, namely a third camera module 211 of a fixed unit 210 and a fourth camera module 221 of a rotating unit 220. The fixed unit 210 also includes an image acquisition module 212, a data conversion receiving module 213, an image processing module 214 and an image encoding and transmission module 511; the third camera module 211 is electrically connected to the image acquisition module 212, and the image acquisition module 212 is electrically connected to the data conversion receiving module 213 and the image processing module 214 respectively. The rotating unit 220 also includes a data conversion sending module 222, the fourth camera module 221 is electrically connected to the data conversion sending module 222, and the data conversion sending module 222 is electrically connected to the data conversion receiving module 213 through a conductive slip ring 230. The third camera module 211 includes a first image sensor 217 and a first lens 218, and the fourth camera module 221 includes a second image sensor 223 and a second lens 224.

[0051] Among them, in the fixed unit 210, the first image sensor 217 is used for panoramic monitoring of fixed scenes. Usually, the image sensor has the characteristics of high resolution, large field of view, etc. If the coverage of monocular monitoring is not enough, multiple image sensors or multiple camera modules can be added to achieve a wider range of image monitoring coverage by using multiple cameras. The magnification of the lens of the fixed unit 210 is fixed to obtain a panoramic image.

[0052] Among them, in the rotating unit 220, the second image sensor 223 can move relative to the installation platform to realize the monitoring of different scenes around. Usually, the image sensor has the characteristics of variable magnification, small field of view, high clarity, good low noise effect, etc. It can generally be used for detail monitoring and intelligent tracking monitoring. The second image sensor 223 in the rotating unit 220 outputs commonly used image high-speed interface signals such as MIPI, LVDS, HISPI, and parallel port. The data conversion and sending module 222 converts it into a low-speed LVDS signal by reducing the signal frequency and increasing the signal amplitude to improve the signal anti-interference. The converted LVDS signal has good anti-interference during the transmission process of the conductive slip ring 230 due to its low rate and high amplitude. Then, the signal is restored by the data conversion receiving module 213 to obtain the MIPI, LVDS, HISPI, parallel port and other image high-speed interface signals of the second image sensor 223, and then input into the image acquisition module 212 of the fixed unit 210. For example, Sony's imx185 can output 2ch 150mV LVDS signals, which can be increased to 4ch 600mV through signal conversion, the signal rate is reduced by half, and the amplitude is increased to 4 times; OmniVision's OS04 outputs 4ch 200mV MIPI signals, which can be converted into 8ch 600mV LVDS signals through data signals, the signal rate is reduced by half, and the amplitude is increased to 3 times. The above-mentioned data conversion sending module 222 and data conversion receiving module 213 can be implemented using FPGA or a dedicated integrated circuit. LVDS (low voltage differential signaling) is a small amplitude differential signal technology that uses very low amplitude signals to transmit data through a pair of differential PCB traces or balanced cables. The low amplitude and constant current source mode drive unique to the LVDS transmission method make it have the characteristics of low power consumption, low bit error rate, low crosstalk and low radiation. Compared with the traditional TTL / CMOS interface, it has been increasingly widely used in systems with high requirements for signal integrity, low jitter and common mode characteristics. The lens of the rotating unit 220 has a variable magnification and can be tracked. The lens of the rotating unit 220 is controlled by a motor.

[0053] Among them, the image acquisition module 212 can simultaneously acquire the image interface signal of the first image sensor 217 and the image interface signal of the second image sensor 223 recovered by the data conversion and receiving module 213. The acquired signal is usually one of MIPI, LVDS, HISPI, and parallel port, but is not limited to the above image interface signals, and then the image data of the first image sensor 217 and the second image sensor 223 are obtained for image processing, encoding and transmission.

[0054] Among them, the image processing module 214 mainly realizes image compression, enhancement restoration, matching description analysis, etc. Common image processing includes image format conversion, image correction, color management, image enhancement, image restoration, image segmentation and image analysis, etc.

[0055] Among them, the image encoding and transmission module 511 first completes the image data compression encoding, such as JPEG, H.265, H.264, SVAC and other encoding processing, and then transmits it through Ethernet, HD-SDI, WIFI, 4G and other wired or wireless methods.

[0056] The multi-eye camera means that the camera system has multiple image sensors, including the image sensor of the fixed unit 210 and the image sensor of the rotating unit 220. The pan-tilt refers to two mounting platforms that can move relative to each other, and are respectively composed of the fixed unit 210 and the rotating unit 220. Usually, the pan-tilt of photographic equipment is generally just a tripod, and the orientation can only be adjusted by hand, while the pan-tilt described in this embodiment can control the rotation and movement direction of the fixed unit 210 or the rotating unit 220 through a control system. The fixed unit 210 and the rotating unit 220 in this embodiment are connected by a conductive slip ring, which can support a maximum of 360 degrees of free rotation.

[0057] In this embodiment, the fixed unit 210 and the rotating unit 220 are movably connected by a conductive slip ring 230, and the signal collected by the rotating unit 220 is converted into a low-speed low-voltage differential signal through data conversion and the conductive slip ring 230 is used for signal transmission, thereby realizing the video recording requirement of free rotation between different eyes of the multi-eye pan-tilt camera. In this embodiment, the data collected by the fourth camera module 221 is firstly reduced in signal frequency and increased in signal amplitude, converted into a high-amplitude, low-rate LVDS signal, and then the image data is transmitted by the conductive slip ring 230, and provided to the same processing system for collection, encoding and network transmission, which has the advantages of low cost and low latency.

[0058] Figure 6 Schematic diagram of the structure of another multi-eye PTZ camera of the preferred embodiment. Figure 6 As shown, taking a binocular pan-tilt camera as an example, the multi-eye pan-tilt camera includes a first fixed unit 610, a first rotating unit 620 and a first conductive slip ring 630, wherein the first fixed unit 610 and the first rotating unit 620 are movably connected via the first conductive slip ring 630, and the first rotating unit 620 is rotatable relative to the first fixed unit 610.

[0059] Specifically, the first fixed unit 610 includes a fifth camera module 611, a first image acquisition module 612, a first data conversion and receiving module 613, a first image processing module 614, a first control module 615, a first image encoding and transmission module 618, a first motor 616, and a second motor 617; the fifth camera module 611 is electrically connected to the first image acquisition module 612, the first image acquisition module 612 is electrically connected to the first data conversion and receiving module 613 and the first image processing module 614, respectively, and the first image encoding and transmission module 618 is electrically connected to the first image processing module 614. The first control module 615 is electrically connected to the first image processing module 614, the first motor 616, and the second motor 617, respectively. The first motor 616 is used to control the horizontal rotation of the first rotating unit 620, and the second motor 617 is used to control the vertical movement of the first rotating unit 620. The first control module 615 controls the first motor 616 and the second motor 617 according to the processing result of the first image processing module 614, thereby controlling the movement of the first rotating unit 620.

[0060] The first rotating unit 620 includes a sixth camera module 621, a first data conversion and transmission module 622, a fifth motor 625, and a sixth motor 626. The sixth camera module 621 is electrically connected to the first data conversion and transmission module 622, and the first data conversion and transmission module 622 is electrically connected to the first data conversion and receiving module 613 through a conductive slip ring 230. The fifth motor 625 and the sixth motor 626 are electrically connected to the first control module 615 through the first conductive slip ring 630, respectively. The fifth motor 625 and the sixth motor 626 are connected to the sixth camera module 621, and the fifth motor 625 and the sixth motor 626 are used to control the movement of the sixth camera module 621. The fifth motor 625 and the sixth motor 626 can also be physically connected to the lens of the sixth camera module 621, so as to control the movement of the lens of the sixth camera module 621. The magnification and focal length of the lens of the first rotating unit 620 can be controlled by the fifth motor 625 and the sixth motor 626, so as to perform tracking and acquisition. Exemplarily, the fifth motor 625 is used to control the variable magnification movement of the sixth camera module 621 , and the sixth motor 626 is used to control the zoom movement of the sixth camera module 621 .

[0061] In this embodiment, the first fixed unit 610 and the first rotating unit 620 are movably connected by the first conductive slip ring 630, and the signal collected by the first rotating unit 620 is converted into a low-speed low-voltage differential signal through the first conductive slip ring 630 for signal transmission, thereby realizing the video recording requirement of free rotation between different eyes of the multi-eye pan-tilt camera; and tracking and collecting are performed by setting the fifth motor 625 and the sixth motor 626. In this embodiment, the data collected by the sixth camera module 621 is firstly reduced in signal frequency and increased in signal amplitude, and converted into a high-amplitude, low-rate LVDS signal, and then the image data is transmitted by the first conductive slip ring 630, and provided to the same processing system for collection, encoding and network transmission, which has the advantages of low cost and low latency.

[0062] Figure 7 Schematic diagram of the structure of another multi-eye PTZ camera of the preferred embodiment. Figure 7 As shown, taking a binocular pan-tilt camera as an example, the multi-eye pan-tilt camera includes a first fixed unit 610, a first rotating unit 620 and a first conductive slip ring 630, wherein the first fixed unit 610 and the first rotating unit 620 are movably connected via the first conductive slip ring 630, and the first rotating unit 620 is rotatable relative to the first fixed unit 610.

[0063] Specifically, the first fixing unit 610 includes a fifth camera module 611, a first image acquisition module 612, a first data conversion and receiving module 613, a first image processing module 614, a first control module 615 and a first image encoding and transmission module 618; the fifth camera module 611 is electrically connected to the first image acquisition module 612, the first image acquisition module 612 is electrically connected to the first data conversion and receiving module 613 and the first image processing module 614, and the first image encoding and transmission module 618 is electrically connected to the first image processing module 614. The first control module 615 is electrically connected to the first image processing module 614.

[0064] The first rotating unit 620 includes a sixth camera module 621, a first data conversion and transmission module 622, a third motor 623, a fourth motor 624, a fifth motor 625 and a sixth motor 626. The sixth camera module 621 is electrically connected to the first data conversion and transmission module 622, and the first data conversion and transmission module 622 is electrically connected to the first data conversion and receiving module 613 through a conductive slip ring 230. The fifth motor 625 and the sixth motor 626 are electrically connected to the first control module 615 through a first conductive slip ring 630, and the fifth motor 625 and the sixth motor 626 are connected to the sixth camera module 621. The fifth motor 625 and the sixth motor 626 are used to control the movement of the sixth camera module 621. The fifth motor 625 and the sixth motor 626 can also be physically connected to the lens of the sixth camera module 621, so as to control the movement of the lens of the sixth camera module 621. The magnification and focal length of the lens of the first rotating unit 620 can be controlled by the fifth motor 625 and the sixth motor 626, and tracking and acquisition can be performed. The fourth motor 624 and the third motor 623 are electrically connected to the first control module 615 through the conductive slip ring 230, respectively. The fourth motor 624 is used to control the horizontal rotation of the first rotating unit 620, and the third motor 623 is used to control the vertical movement of the first rotating unit 620. The first control module 615 controls the fourth motor 624 and the third motor 623 according to the processing result of the first image processing module 614, thereby controlling the movement of the first rotating unit 620.

[0065] In this embodiment, the first fixed unit 610 and the first rotating unit 620 are movably connected by the first conductive slip ring 630, and the signal collected by the first rotating unit 620 is converted into a low-speed low-voltage differential signal through the first conductive slip ring 630 for signal transmission, thereby realizing the video recording requirement of free rotation between different eyes of the multi-eye pan-tilt camera; and tracking and collecting are performed by setting the fifth motor 625 and the sixth motor 626. In this embodiment, the data collected by the sixth camera module 621 is firstly reduced in signal frequency and increased in signal amplitude, and converted into a high-amplitude, low-rate LVDS signal, and then the image data is transmitted by the first conductive slip ring 630, and provided to the same processing system for collection, encoding and network transmission, which has the advantages of low cost and low latency.

[0066] Figure 8 Schematic diagram of the structure of another multi-eye PTZ camera of the preferred embodiment. Figure 8 As shown, taking a binocular pan-tilt camera as an example, the multi-eye pan-tilt camera includes a first fixed unit 610, a first rotating unit 620 and a first conductive slip ring 630, wherein the first fixed unit 610 and the first rotating unit 620 are movably connected via the first conductive slip ring 630, and the first rotating unit 620 is rotatable relative to the first fixed unit 610.

[0067] Specifically, the first fixed unit 610 includes a fifth camera module 611, a first image acquisition module 612, a first data conversion and receiving module 613, a first image processing module 614, a first control module 615, a first image encoding and transmission module 618, a first motor 616, and a second motor 617; the fifth camera module 611 is electrically connected to the first image acquisition module 612, the first image acquisition module 612 is electrically connected to the first data conversion and receiving module 613 and the first image processing module 614, respectively, and the first image encoding and transmission module 618 is electrically connected to the first image processing module 614. The first control module 615 is electrically connected to the first image processing module 614, the first motor 616, and the second motor 617, respectively. The first motor 616 is used to control the horizontal rotation of the first rotating unit 620, and the second motor 617 is used to control the vertical movement of the first rotating unit 620. The first control module 615 controls the first motor 616 and the second motor 617 according to the processing result of the first image processing module 614, thereby controlling the movement of the first rotating unit 620.

[0068] The first rotating unit 620 includes a second control module 627, a sixth camera module 621, a first data conversion and transmission module 622, a fifth motor 625, and a sixth motor 626. The second control module 627 is electrically connected to the first control module 615 through a conductive slip ring 630, the sixth camera module 621 is electrically connected to the first data conversion and transmission module 622, and the first data conversion and transmission module 622 is electrically connected to the first data conversion receiving module 613 through a conductive slip ring 230. The fifth motor 625 and the sixth motor 626 are electrically connected to the second control module 627, respectively, and the fifth motor 625 and the sixth motor 626 are connected to the sixth camera module 621. The fifth motor 625 and the sixth motor 626 are used to control the movement of the sixth camera module 621. The fifth motor 625 and the sixth motor 626 can also be physically connected to the lens of the sixth camera module 621, so as to control the movement of the lens of the sixth camera module 621. The magnification and focal length of the lens of the first rotating unit 620 are controlled by the fifth motor 625 and the sixth motor 626 to be variable, so that tracking and acquisition can be performed. The first control module 615 sends a motor control signal to the second control module 627 according to the processing result of the first image processing module 614, and the second control module 627 controls the fifth motor 625 and the sixth motor 626 according to the motor control signal, thereby controlling the movement of the sixth camera module 621.

[0069] In this embodiment, the first fixed unit 610 and the first rotating unit 620 are movably connected by the first conductive slip ring 630, and the signal collected by the first rotating unit 620 is converted into a low-speed low-voltage differential signal through the first conductive slip ring 630 for signal transmission, thereby realizing the video recording requirement of free rotation between different eyes of the multi-eye pan-tilt camera; and tracking and collecting are performed by setting the fifth motor 625 and the sixth motor 626. In this embodiment, the data collected by the sixth camera module 621 is firstly reduced in signal frequency and increased in signal amplitude, and converted into a high-amplitude, low-rate LVDS signal, and then the image data is transmitted by the first conductive slip ring 630, and provided to the same processing system for collection, encoding and network transmission, which has the advantages of low cost and low latency.

[0070] Fig. 9 Schematic diagram of the structure of another multi-eye PTZ camera of the preferred embodiment. Fig. 9 As shown, taking a binocular pan-tilt camera as an example, the multi-eye pan-tilt camera includes a first fixed unit 610, a first rotating unit 620 and a first conductive slip ring 630, wherein the first fixed unit 610 and the first rotating unit 620 are movably connected via the first conductive slip ring 630, and the first rotating unit 620 is rotatable relative to the first fixed unit 610.

[0071] Specifically, the first fixing unit 610 includes a fifth camera module 611, a first image acquisition module 612, a first data conversion and receiving module 613, a first image processing module 614, a first control module 615 and a first image encoding and transmission module 618; the fifth camera module 611 is electrically connected to the first image acquisition module 612, the first image acquisition module 612 is electrically connected to the first data conversion and receiving module 613 and the first image processing module 614, and the first image encoding and transmission module 618 is electrically connected to the first image processing module 614. The first control module 615 is electrically connected to the first image processing module 614.

[0072] The first rotating unit 620 includes a second control module 627, a sixth camera module 621, a first data conversion and transmission module 622, a third motor 623, a fourth motor 624, a fifth motor 625 and a sixth motor 626. The sixth camera module 621 is electrically connected to the first data conversion and transmission module 622, and the first data conversion and transmission module 622 is electrically connected to the first data conversion and receiving module 613 through a conductive slip ring 230. The fifth motor 625 and the sixth motor 626 are electrically connected to the second control module 627 respectively, and the fifth motor 625 and the sixth motor 626 are connected to the sixth camera module 621. The fifth motor 625 and the sixth motor 626 are used to control the movement of the sixth camera module 621. The fifth motor 625 and the sixth motor 626 can also be physically connected to the lens of the sixth camera module 621, so as to control the movement of the lens of the sixth camera module 621. The magnification and focal length of the lens of the first rotating unit 620 can be controlled by the fifth motor 625 and the sixth motor 626, and tracking and acquisition can be performed. The first control module 615 sends a motor control signal to the second control module 627 according to the processing result of the first image processing module 614, and the second control module 627 controls the fifth motor 625 and the sixth motor 626 according to the motor control signal, thereby controlling the movement of the sixth camera module 621. The fourth motor 624 and the third motor 623 are electrically connected to the first control module 615 through the conductive slip ring 230, respectively. The fourth motor 624 is used to control the horizontal rotation of the first rotating unit 620, and the third motor 623 is used to control the vertical movement of the first rotating unit 620. The first control module 615 controls the fourth motor 624 and the third motor 623 according to the processing result of the first image processing module 614, thereby controlling the movement of the first rotating unit 620.

[0073] In this embodiment, the first fixed unit 610 and the first rotating unit 620 are movably connected by the first conductive slip ring 630, and the signal collected by the first rotating unit 620 is converted into a low-speed low-voltage differential signal through the first conductive slip ring 630 for signal transmission, thereby realizing the video recording requirement of free rotation between different eyes of the multi-eye pan-tilt camera; and tracking and collecting are performed by setting the fifth motor 625 and the sixth motor 626. In this embodiment, the data collected by the sixth camera module 621 is firstly reduced in signal frequency and increased in signal amplitude, and converted into a high-amplitude, low-rate LVDS signal, and then the image data is transmitted by the first conductive slip ring 630, and provided to the same processing system for collection, encoding and network transmission, which has the advantages of low cost and low latency.

[0074] It should be understood that the specific embodiments described herein are only used to explain the application, rather than to limit it. Based on the embodiments provided in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of this application.

[0075] Obviously, the drawings are only some examples or embodiments of the present application. For ordinary technicians in the field, the present application can also be applied to other similar situations based on these drawings without creative work. In addition, it is understandable that although the work done in this development process may be complicated and lengthy, for ordinary technicians in the field, certain changes in design, manufacturing or production based on the technical content disclosed in this application are only conventional technical means and should not be regarded as insufficient content disclosed in this application.

[0076] The term "embodiment" in this application refers to a specific feature, structure or characteristic described in conjunction with the embodiment that can be included in at least one embodiment of the present application. The appearance of this phrase in various locations in the specification does not necessarily mean the same embodiment, nor does it mean that it is mutually exclusive with other embodiments and is independent or optional. It is clearly or implicitly understood by those of ordinary skill in the art that the embodiments described in this application can be combined with other embodiments without conflict.

[0077] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of patent protection. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the scope of protection of the present application. Therefore, the scope of protection of the present application shall be subject to the attached claims.

Claims

1. A multi-eye PTZ camera, characterized in that: The multi-eye PTZ camera comprises: a fixed unit, a rotating unit and a conductive slip ring; the fixed unit and the rotating unit are movably connected via the conductive slip ring; the rotating unit is rotatable relative to the fixed unit; The fixing unit comprises a first camera module, an image acquisition module, a data conversion receiving module and an image processing module; the first camera module is electrically connected to the image acquisition module, and the image acquisition module is electrically connected to the data conversion receiving module and the image processing module respectively; The rotating unit includes a second camera module and a data conversion and sending module, and the second camera module is electrically connected to the data conversion and sending module; The data conversion sending module and the data conversion receiving module are electrically connected through the conductive slip ring.

2. The multi-eye PTZ camera according to claim 1, characterized in that: The conductive slip ring can rotate 360 ​​degrees.

3. The multi-eye PTZ camera according to claim 1, characterized in that: The second camera module outputs a first image signal to the data conversion and sending module, the data conversion and sending module converts the first image signal into a second image signal, and transmits the second image signal to the data conversion and receiving module through the conductive slip ring, and the data conversion and receiving module converts the received second image signal into the first image signal.

4. The multi-eye PTZ camera according to claim 3, characterized in that: The second image signal is a low-speed and low-voltage differential signal.

5. The multi-eye PTZ camera according to claim 3 or 4, characterized in that: The first image signal is a high-speed image signal.

6. The multi-eye PTZ camera according to claim 1, characterized in that: The fixing unit further includes a first control module, which is electrically connected to the image processing module and is used to analyze the image processed by the image processing module.

7. The multi-eye PTZ camera according to claim 6, characterized in that: The fixed unit is also provided with a first motor and a second motor, the first motor and the second motor are electrically connected to the first control module respectively, the first motor is used to control the horizontal rotation of the rotating unit, and the second motor is used to control the vertical movement of the rotating unit.

8. The multi-eye PTZ camera according to claim 6, characterized in that: The rotating unit is also provided with a third motor and a fourth motor, and the third motor and the fourth motor are electrically connected to the first control module through the conductive slip ring respectively, the third motor is used to control the horizontal rotation of the rotating unit, and the fourth motor is used to control the vertical movement of the rotating unit.

9. The multi-eye PTZ camera according to any one of claims 6 to 8, characterized in that: The rotating unit is also provided with a fifth motor and a sixth motor, the fifth motor and the sixth motor are respectively connected to the second camera module, and the fifth motor and the sixth motor are used to control the movement of the second camera module.

10. The multi-eye PTZ camera according to claim 9, characterized in that: The fifth motor and the sixth motor are electrically connected to the first control module through the conductive slip rings respectively.

11. The multi-eye PTZ camera according to claim 9, characterized in that: The rotating unit is also provided with a second control module, the second control module is electrically connected to the first control module through the conductive slip ring, and the fifth motor and the sixth motor are electrically connected to the second control module respectively.

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