An AUTBUS network camera and a monitoring system

Abstract

This application belongs to the field of audio and video surveillance and specifically provides an AUTBUS network camera and monitoring system. The AUTBUS network camera includes a camera module, a video codec chip, and an AUTBUS bus chip; the video codec chip is electrically connected to the camera module and is used to encode and decode the image output by the camera module; the AUTBUS bus chip is electrically connected to the video codec chip via an RGMII interface and is used to convert the output image of the video codec chip into an AUTBUS bus protocol format; and the AUTBUS bus chip is electrically connected to an external bus via an AUTBUS bus interface. Based on the technical solution provided by this application, the transmission bandwidth and transmission distance can be improved.

Description

Technical Field

[0001] The present invention relates to the field of audio and video monitoring, and in particular to an AUTBUS network camera and a monitoring system. Background Art

[0002] At present, cameras are used in shopping malls, schools, construction sites, factories, tunnels and other places to monitor these places and ensure the safety of relevant areas.

[0003] With the advancement of society and science, people's requirements for cameras are becoming increasingly higher. Existing cameras generally transmit captured images via the CAN bus to a server or terminal for image analysis and processing. However, the transmission bandwidth of CAN bus-based cameras is generally only around 10 megabits, and the transmission distance is limited to within 100 meters. As a result, existing cameras cannot achieve ideal results in scenarios with high transmission requirements. Summary of the Invention

[0004] In view of the above problems in the prior art, the present application provides an AUTBUS network camera and monitoring system, which can improve the transmission bandwidth and transmission distance, so that the transmission bandwidth reaches 100M and the transmission distance reaches 500 meters.

[0005] In order to achieve the above-mentioned objectives, the first aspect of the present application provides an AUTBUS network camera, comprising: a camera module, a video codec chip and an AUTBUS bus chip; the video codec chip is electrically connected to the camera module, and is used to encode and decode the image output by the camera module; the AUTBUS bus chip is electrically connected to the video codec chip through the RGMII interface, and is used to convert the output image of the video codec chip into the AUTBUS bus protocol format; the AUTBUS bus chip is electrically connected to the external bus through the AUTBUS bus interface.

[0006] As described above, the image output by the camera module is encoded and decoded by the video codec chip in the network camera, and the RGMII interface of the video codec chip is directly connected to the RGMII interface of the AUTBUS bus chip, so that the AUTBUS network camera outputs the image in the AUTBUS bus protocol format. As a result, it can be electrically connected to the external AUTBUS bus, thereby improving the transmission bandwidth and transmission distance, so that the transmission bandwidth reaches 100 megabits and the transmission distance reaches 500 meters, ensuring high-speed, low-latency and reliable transmission of large amounts of audio and video, so that this technology can be widely used in application scenarios such as streaming media, real-time storage, and security monitoring.

[0007] As an optional implementation of the first aspect, the AUTBUS network camera includes a support plate, a lens barrel is vertically mounted on one side of the support plate, a lens is mounted on an end of the lens barrel away from the support plate, and the camera module is mounted on an end of the lens barrel close to the support plate; the video codec chip is mounted on a side of the support plate facing away from the camera module; the AUTBUS network camera also includes an AUTBUS conversion board, which is arranged at a certain distance from the support plate, and the AUTBUS bus chip is mounted on the AUTBUS conversion board.

[0008] As an optional implementation of the first aspect, the AUTBUS bus interface is mounted on the AUTBUS conversion board, and the AUTBUS bus interface is electrically connected to corresponding pins of the AUTBUS bus chip.

[0009] From the above, by assembling the AUTBUS bus interface on the AUTBUS conversion board, the external interface of the AUTBUS network camera can be made an AUTBUS bus interface, thereby improving the transmission bandwidth and transmission speed.

[0010] As an optional implementation of the first aspect, the AUTBUS conversion board is equipped with an AUTBUS debugging interface, and the AUTBUS debugging interface is electrically connected to a corresponding pin of the AUTBUS bus chip.

[0011] From the above, the mainboard can be debugged through the AUTBUS debugging interface assembled on the AUTBUS conversion board.

[0012] As an optional implementation of the first aspect, the support plate and the AUTBUS conversion plate match in shape and are connected via at least three connecting columns of equal length.

[0013] As an optional implementation of the first aspect, the camera module includes: a CCD image sensor, an image signal processor, and a digital signal processor electrically connected in sequence; the CCD image sensor is used to convert the captured optical image into an electrical signal; the image signal processor is used to convert the electrical signal output by the CCD image sensor into a digital signal; and the digital signal processor is used to process the digital signal output by the image signal processor to obtain a digital signal output that meets the requirements.

[0014] As an optional implementation of the first aspect, the camera module also includes: an automatic gain control module and a driving module; the automatic gain control module is electrically connected to the digital signal processor, and is used to adjust the gain of the digital signal output by the digital signal processor; the driving module is electrically connected to the automatic gain control module and the CCD image sensor, and is used to adjust the driving signal according to the gain adjustment signal output by the automatic gain control module, and drive the CCD image sensor to work according to the driving signal.

[0015] The second aspect of the present application provides a monitoring system, comprising: spatially distributed network cameras, which are the network cameras shown in any one of the first aspects above, an AUTBUS bus cable, and an edge control server; multiple network cameras are electrically connected to the AUTBUS bus cable through their respective AUTBUS bus interfaces, and the AUTBUS bus cable is electrically connected to the edge control server; the edge control service is used to receive image information from multiple network cameras.

[0016] The beneficial effects of this aspect can refer to the effective effects of any one of the above-mentioned first aspects.

[0017] These and other aspects of the present application will become more apparent from the following description of the embodiment(s). BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following further illustrates the various technical features of the present application and the relationships between them with reference to the accompanying drawings. The accompanying drawings are exemplary, and some technical features are not shown in actual proportion. In addition, some drawings may omit technical features that are commonly used in the technical field to which the present application belongs and are not essential for understanding and implementing the present application, or additional technical features that are not essential for understanding and implementing the present application may be shown. In other words, the combination of the various technical features shown in the accompanying drawings is not intended to limit the present application. In addition, throughout the present application, the same figure numbers refer to the same content. The specific description of the drawings is as follows:

[0019] Figure 1 A schematic diagram of the structure of an AUTBUS network camera provided in an embodiment of the present application;

[0020] Figure 2a A schematic diagram of the front structure of the AUTBUS network camera provided in an embodiment of the present application;

[0021] Figure 2b A schematic diagram of the side structure of the AUTBUS network camera provided in an embodiment of the present application;

[0022] Figure 2cA schematic diagram of the back structure of the AUTBUS network camera provided in an embodiment of the present application;

[0023] Figure 3 A schematic diagram of the structure of the monitoring system provided in an embodiment of the present application;

[0024] Figure 4 An application scenario diagram of the monitoring system provided in an embodiment of the present application. DETAILED DESCRIPTION

[0025] In order to make the objectives, technical solutions and advantages of this application clearer, the implementation methods of this application will be further described in detail below with reference to the accompanying drawings.

[0026] It should be understood that the embodiments of the present application provide a control method, device and platform for signal lights for temporary service. Since the principles of solving the problems of these technical solutions are the same or similar, some repetitions may not be repeated in the introduction of the following specific embodiments, but it should be regarded as that these specific embodiments have been referenced to each other and can be combined with each other.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art in the art of this application. In the event of any inconsistency, the meaning described in this specification or the meaning derived from the contents recorded in this specification shall prevail. In addition, the terms used herein are only for the purpose of describing the embodiments of the present application and are not intended to limit this application.

[0028] In order to accurately describe the technical content of this application and to accurately understand the present invention, the following explanations or definitions of the terms used in this specification are given before describing the specific embodiments:

[0029] AUTBUS: AUTBUS is a new broadband industrial bus based on time-sensitive technology. It combines the advantages of fieldbus and real-time Ethernet, offering higher bandwidth and better real-time performance than the CAN bus. Based on the AUTBUS broadband bus international standards IEC 61158-Type 28 and IEC 61784-CPF22, the AUTBUS broadband bus features a time-synchronized communication mechanism, a transmission rate of up to 100 Mbps, a maximum transmission distance of 500 meters, and supports polarity-neutral twisted-pair transmission, supporting 254 nodes. It also offers flexible topology.

[0030] RGMII (Reduced Gigabit Media Independent Interface) interface: A data transmission interface. RGMII uses a 4-bit data interface, operates at a 125MHz clock, and transmits data on both the rising and falling edges, with a maximum transmission rate of 1000Mbps.

[0031] Related technology 1 provides a camera zoom system and control method based on CAN bus, which belongs to the field of wireless zoom video surveillance technology. The camera zoom system includes a CAN bus display, a converter and a camera. The output end of the CAN bus display communicates with the input of the converter through the CAN bus, and the CAN bus display sends a first zoom signal to the converter; the output end of the converter is wirelessly connected to the camera, and the converter is used to convert the first zoom signal communicated through the CAN bus into a second zoom signal transmitted wirelessly and pass it to the camera; the camera is used to receive the second zoom signal sent by the converter and zoom according to the second zoom signal.

[0032] Related technology 2 provides a transmission protocol multi-functional interface security camera, including: a shell, a camera movement is arranged inside the shell, and the movement includes an image acquisition photoelectric conversion chip component, an enhanced video codec component, a storage Ethernet network video processing unit, an Ethernet communication component, a CAN bus communication interface component, an Ethernet VDSL2 communication module, an optical fiber transceiver communication component, a coaxial radio frequency cable EOC and ONU communication component and a power supply component. The shell is provided with an Ethernet communication interface, a CAN communication interface, a VDSL2 communication interface, an optical fiber transceiver communication interface and a coaxial radio frequency cable communication interface.

[0033] Based on the research on the above-mentioned related technologies, cameras generally use the CAN bus as a transmission medium to transmit information, but the total transmission bandwidth of CAN is generally only about 10 megabytes, and the transmission distance is only supported within a range of 100 meters.

[0034] Based on research on related technologies and the shortcomings of related technologies, an embodiment of the present application provides an AUTBUS network camera. Based on this AUTBUS network camera, the transmission bandwidth can reach 100M and the transmission distance can reach 500 meters. The AUTBUS network camera provided by this application is described in detail below with reference to specific embodiments.

[0035] See also Figure 1As shown in the structural diagram, the AUTBUS network camera includes: a camera module 10, a video codec chip 20, and an AUTBUS bus chip 30. The video codec chip 20 is electrically connected to the camera module 10, and the AUTBUS bus chip 30 is electrically connected to the video codec chip 20 via the RGMII interface. The AUTBUS bus interface of the AUTBUS bus chip 30 is the external connection interface of the AUTBUS network camera, used to connect to the external bus.

[0036] The camera module 10 includes a CCD image sensor 110, an image signal processor 120, and a digital signal processor 130. It should be understood that the front end of the camera module 10 should also include a lens for generating an optical image. The CCD image sensor 110, the image signal processor 120, and the digital signal processor 130 are electrically connected in sequence. The CCD image sensor 110 is used to convert the collected optical image into an electrical signal. The image signal processor (ISP) 120 is used to convert the electrical signal output by the CCD image sensor 110 into a digital signal. The digital signal processor (DSP) 130 is used to process the digital signal output by the image signal processor 120 to obtain a digital signal output that meets the requirements. The processing performed in the digital signal processor 130 includes but is not limited to filtering, denoising, enhancing, white balancing, etc. of the digital signal.

[0037] In some embodiments, the camera module 10 may further include an automatic gain control module (AGC) 140 and a driver module (V-Driver) 150. The AGC module 140 is electrically connected to the DSP 130, and the driver module 150 is electrically connected to the AGC module 140 and the CCD image sensor 110. The AGC module 140 is configured to perform gain adjustment on the digital signal output by the DSP 130, specifically, to automatically control the amplification factor of the signal, thereby increasing or decreasing the intensity of the image signal to obtain a clear image. The driver module 150 is configured to adjust the drive signal based on the gain adjustment signal output by the AGC module 140, thereby driving the CCD image sensor 110 to operate using the adjusted drive signal.

[0038] In some embodiments, the camera module 10 may further include a clock module (Timing GEN, TG) 160 , which is electrically connected to the digital signal processor 130 and the driving module 150 and is configured to generate a clock signal.

[0039] The video codec chip 20 is used to perform codec processing on the image output by the camera module 10 , specifically compressing and packaging the received image according to the used audio and video protocol to realize the digitization of the audio and video signals.

[0040] In some embodiments, the AUTBUS bus chip 30 may be an AUTBUS KY3001 model, which is used to convert the output image of the video codec chip 20 into an AUTBUS bus protocol format for transmission through the AUTBUS bus interface.

[0041] The AUTBUS network camera provided in this application can support a transmission bandwidth of 100M and a transmission distance of 500 meters.

[0042] Another embodiment of the present application provides a hardware structure of an AUTBUS network camera, wherein: Figure 2a This is a front view of the network camera. Figure 2b This is a side view of the network camera. Figure 2c This is a schematic diagram of the back of the network camera. Figure 2a 、 Figure 2b and Figure 2c The hardware structure of the AUTBUS network camera is described in detail. Reference numerals 410 denote a support plate, 420 denotes a lens barrel, 430 denotes a connecting column, 440 denotes an AUTBUS bus interface, 450 denotes an AUTBUS debugging interface, and 460 denotes a camera lens.

[0043] As shown in the figure, the AUTBUS network camera includes a support plate 410 with a lens barrel 420 mounted vertically on one side of the support plate. The end of the lens barrel 420, close to the support plate 410, is equipped with a camera module. The input end of the lens barrel 420 (i.e., the end away from the support plate 410) is equipped with a lens. A video encoding chip is mounted on the side of the support plate 410 facing away from the camera module, and the video encoding chip and the camera module are electrically connected.

[0044] The AUTBUS network camera also includes an AUTBUS conversion board 470, which is connected to the support board 410 via a plurality of connecting posts 430. Therefore, the distance between the AUTBUS conversion board 470 and the support board 410 is the height of the connecting posts 430. In some embodiments, the number of connecting posts 430 can be set as long as it can maintain the stability of the conversion board 470 and the support board 410. For example, the number of connecting posts 430 can be three or four. The AUTBUS bus chip 30, AUTBUS bus interface 440, and AUTBUS debugging interface 450 are assembled on the side of the conversion board 470 away from the support board 410. The AUTBUS bus interface 440 is electrically connected to the corresponding pins of the AUTBUS bus chip 30, and the AUTBUS debugging interface 450 is electrically connected to the corresponding pins of the AUTBUS bus chip 30.

[0045] In some embodiments, the support plate 410 may match the shape of the AUTBUS conversion plate 470 . For example, the shapes of the two may both be set to be rectangular or circular.

[0046] Another embodiment of the present application provides a monitoring system, such as Figure 3 Shown is a schematic diagram of the structure of the monitoring system.

[0047] The monitoring system includes multiple AUTBUS network cameras 510, AUTBUS bus cables 520, and an edge control server 530. The AUTBUS network cameras 510 are the AUTBUS network cameras provided in the above embodiment. The specific connection relationship and functions of each part thereof can be found in the description of the above embodiment and will not be repeated here.

[0048] The plurality of AUTBUS network cameras 510 are electrically connected to the AUTBUS bus cable 520 via their respective AUTBUS bus interfaces, and the AUTBUS bus cable 520 is electrically connected to the edge control server 530. The edge control server 530 is configured to receive image information from the plurality of AUTBUS network cameras 510, thereby achieving monitoring.

[0049] The monitoring system provided in the embodiment of the present application can be applied to tunnels, ship cabins, trains, oil and gas pipelines, factories, shopping malls, schools, etc. The following is another embodiment of the present application that provides an application condition of the monitoring system.

[0050] like Figure 4The following diagram shows the application scenario of this monitoring system. In this example, the monitoring system is used for factory monitoring. Specifically, a 500-meter AUTBUS bus cable with a transmission bandwidth of 100 Mbps is laid out around the factory. Therefore, 50 AUTBUS network cameras can be connected simultaneously to a single 500-meter AUTBUS bus cable, meaning 200 AUTBUS network cameras can be connected around the factory. The AUTBUS bus cable connects to the factory's edge control server, which can then obtain image information from the network cameras, enabling factory monitoring. The cameras can achieve a bandwidth transmission rate of 2 Mbps, use the H.265 video encoding standard, and achieve a resolution of 1080p (i.e., 2 Mbps H.265@1080p). This overcomes the 100-meter Ethernet bandwidth limitation, simplifies the cabling topology, and reduces wiring.

[0051] In addition, the words "first, second, third, etc." or module A, module B, module C and other similar terms in the specification and claims are only used to distinguish similar objects and do not represent a specific ordering of the objects. It can be understood that the specific order or sequence can be interchanged where permitted so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0052] The term "comprising" as used in the specification and claims should not be construed as limiting to what is listed thereafter; it does not exclude other elements or steps. Thus, it should be interpreted as specifying the presence of the features, integers, steps, or components mentioned, but not excluding the presence or addition of one or more other features, integers, steps, or components, or groups thereof. Thus, the expression "a device comprising means A and B" should not be limited to a device consisting solely of components A and B.

[0053] References in this specification to "one embodiment" or "an embodiment" mean that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Therefore, the phrases "in one embodiment" or "in an embodiment" appearing throughout this specification do not necessarily refer to the same embodiment, but may refer to the same embodiment. Furthermore, in one or more embodiments, the particular features, structures, or characteristics can be combined in any suitable manner, as would be apparent to one of ordinary skill in the art from this disclosure.

[0054] Note that the above are only preferred embodiments of the present application and the technical principles employed. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, and substitutions can be made by those skilled in the art without departing from the scope of protection of the present application. Therefore, although the present application has been described in more detail through the above embodiments, the present application is not limited to the above embodiments and may include many other equivalent embodiments without departing from the scope of protection of the present application, all of which fall within the scope of protection of the present application.

Claims

1. An AUTBUS network camera, characterized in that: include: Camera module, video codec chip and AUTBUS bus chip; The video codec chip is electrically connected to the camera module and is used to perform codec processing on the image output by the camera module; The AUTBUS bus chip is electrically connected to the video codec chip via an RGMII interface, and is used to convert the output image of the video codec chip into an AUTBUS bus protocol format; The AUTBUS bus chip is electrically connected to the external bus via the AUTBUS bus interface.

2. The network camera according to claim 1, wherein The AUTBUS network camera includes a support plate, a lens barrel is vertically mounted on one side of the support plate, a lens is mounted on an end of the lens barrel away from the support plate, and the camera module is mounted on an end of the lens barrel close to the support plate; The video codec chip is mounted on the side of the support plate facing away from the camera module; The AUTBUS network camera further includes an AUTBUS conversion board, which is arranged at a certain distance from the support board, and the AUTBUS bus chip is mounted on the AUTBUS conversion board.

3. The network camera according to claim 2, wherein: The AUTBUS bus interface is mounted on the AUTBUS conversion board, and the AUTBUS bus interface is electrically connected to the corresponding pins of the AUTBUS bus chip.

4. The network camera according to claim 2 or 3, characterized in that: The AUTBUS conversion board is equipped with an AUTBUS debugging interface, and the AUTBUS debugging interface is electrically connected to the corresponding pins of the AUTBUS bus chip.

5. The network camera according to claim 2, wherein: The support plate and the AUTBUS conversion plate match in shape and are connected via at least three connecting columns of equal length; The matching of the shapes of the support plate and the AUTBUS conversion plate indicates that the support plate and the AUTBUS conversion plate have the same shape.

6. The network camera according to claim 1, wherein: The camera module includes: A CCD image sensor, an image signal processor, and a digital signal processor electrically connected in sequence; The CCD image sensor is used to convert the collected optical image into an electrical signal; The image signal processor is used to convert the electrical signal output by the CCD image sensor into a digital signal; The digital signal processor is used to process the digital signal output by the image signal processor to obtain a digital signal output that meets the requirements.

7. The network camera according to claim 6, characterized in that The camera module also includes: an automatic gain control module and a driving module; The automatic gain control module is electrically connected to the digital signal processor and is used to adjust the gain of the digital signal output by the digital signal processor; The driving module is electrically connected to the automatic gain control module and the CCD image sensor, and is used to adjust the driving signal according to the gain adjustment signal output by the automatic gain control module, and drive the CCD image sensor to work according to the driving signal.

8. A monitoring system, characterized in that: include: A plurality of spatially distributed network cameras, AUTBUS bus cables, and edge control servers according to any one of claims 1 to 7; The plurality of network cameras are electrically connected to the AUTBUS bus cable through respective AUTBUS bus interfaces, and the AUTBUS bus cable is electrically connected to the edge control server; The edge control service is used to receive image information of a plurality of network cameras.

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