CN113225476A - Camera zooming system based on CAN bus and control method - Google Patents
Camera zooming system based on CAN bus and control method Download PDFInfo
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- CN113225476A CN113225476A CN202110313479.4A CN202110313479A CN113225476A CN 113225476 A CN113225476 A CN 113225476A CN 202110313479 A CN202110313479 A CN 202110313479A CN 113225476 A CN113225476 A CN 113225476A
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000004891 communication Methods 0.000 claims description 17
- 238000012544 monitoring process Methods 0.000 abstract description 17
- 238000013461 design Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
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- 230000004438 eyesight Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/67—Focus control based on electronic image sensor signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40006—Architecture of a communication node
- H04L12/40013—Details regarding a bus controller
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40208—Bus networks characterized by the use of a particular bus standard
- H04L2012/40215—Controller Area Network CAN
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Abstract
The embodiment of the application provides a camera zooming system and a control method based on a CAN bus, which belong to the technical field of wireless zooming video monitoring, wherein the camera zooming system comprises a CAN bus display, a converter and a camera, the output end of the CAN bus display is communicated with the input of the converter through the CAN bus, and the CAN bus display sends a first zooming signal to the converter; the output end of the converter is wirelessly connected with the camera, and the converter is used for converting a first zooming signal communicated through a CAN bus into a second zooming signal transmitted wirelessly and transmitting the second zooming signal to the camera; the camera is used for receiving the second zooming signal sent by the converter and zooming according to the second zooming signal. Through the processing scheme, the method and the device are applied to zooming control of the network camera, the problem that the traditional engineering machinery cannot directly control zooming of the network camera on site is solved, and operation is more convenient and flexible.
Description
Technical Field
The application relates to the technical field of wireless zoom video monitoring, in particular to a camera zoom system based on a CAN bus and a control method.
Background
In the field of mechanical engineering, large-scale hoisting equipment is often involved, a crane is the most common one, and the crane is also called a crane, is widely applied to large-scale hoisting construction of mudflats, mountainous regions and the like, and has relatively complex working environment. The crane has a long body and a complex structure, and is influenced by the environment and the crane during operation, so that the operator cannot observe all the current states and operation effects of the vehicle by eyesight, and most information of the vehicle can be obtained only in a monitoring mode. During crane operation, there are various ways of monitoring vehicle states, but most of them are still video monitoring ways, such as comprehensive intuition, real-time performance, technical maturity and cost.
When the crane is operated, the operation condition is complex, and in order to ensure the operation safety, an operator needs to synthesize various state information and operation feedback of the vehicle to determine the next operation, so that a plurality of monitoring points needed to be monitored by the crane are provided. However, due to design cost and internal space limitation of the crane wireless zoom video monitoring system, the environment around the crane is not suitable for controlling the zoom function of the camera by using a network cable for wiring, and the existing display cannot directly connect the network camera, so a new zoom control mode is required for controlling the zoom of the camera.
Disclosure of Invention
In view of the above, embodiments of the present application provide a camera zoom system and a control method based on a CAN bus, which at least partially solve the problems in the prior art.
In a first aspect, the present application provides a CAN bus-based camera zoom system, which includes a CAN bus display, a converter and a camera, wherein,
the output end of the CAN bus display is communicated with the input of the converter through a CAN bus, and the CAN bus display sends a first zooming signal to the converter;
the output end of the converter is wirelessly connected with the camera, and the converter is used for converting a first zooming signal communicated through the CAN bus into a second zooming signal transmitted wirelessly and transmitting the second zooming signal to the camera;
the camera is used for receiving the second zooming signal sent by the converter and zooming according to the second zooming signal.
According to a specific implementation manner of the embodiment of the application, the output end of the converter is wirelessly connected with the camera through the Ethernet, and CAN bus communication is converted into TCP communication.
According to a specific implementation manner of the embodiment of the application, the model of the CAN bus display is HC-Suk 8102.
According to a specific implementation manner of the embodiment of the application, the converter is one of GCAN-202, SG-CANET-210, LCWLAN-600E and LCWLAN-622E.
According to a specific implementation manner of the embodiment of the application, the camera is an AHD1080P high-definition camera.
According to a specific implementation manner of the embodiment of the application, the zoom multiple of the camera is 30 times.
According to a specific implementation manner of the embodiment of the present application, the protection level of the camera is IP 67.
In a second aspect, an embodiment of the present application further provides a method for controlling a camera zoom system based on a CAN bus, where the method includes:
the output end of the CAN bus display sends a first zooming signal through a CAN bus;
the input end of the converter receives a first zooming signal communicated through the CAN bus and converts the first zooming signal into a second zooming signal transmitted wirelessly, and the second zooming signal is output from the output end of the converter;
and the camera receives the second zooming signal and zooms according to the second zooming signal.
According to a specific implementation manner of the embodiment of the application, the wirelessly transmitted second zoom signal is transmitted through the ethernet, and CAN bus communication is converted into TCP communication.
Advantageous effects
The method for controlling the zooming of the camera based on the CAN bus in the embodiment of the application designs a wireless zooming video monitoring system, which comprises a CAN bus display, a converter and the camera, is suitable for the zooming control method of the network camera, solves the problem that the zooming of the network camera cannot be directly controlled on site on the traditional engineering machinery, and avoids the problem that the zooming of the camera is controlled by laying a network cable near the engineering machinery such as a crane; the crane monitoring system can carry out multi-point monitoring according to the monitoring requirements of the crane, so that various state information of a vehicle can be timely and detailed to feed back, an operator can use the crane monitoring system more conveniently and flexibly, the crane monitoring system is more rapid and accurate to operate, and the safety and the operation efficiency of crane operation are improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic composition diagram of a camera zoom system based on a CAN bus according to an embodiment of the present invention.
Detailed Description
The embodiments of the present application will be described in detail below with reference to the accompanying drawings.
The following description of the embodiments of the present application is provided by way of specific examples, and other advantages and effects of the present application will be readily apparent to those skilled in the art from the disclosure herein. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. The present application is capable of other and different embodiments and its several details are capable of modifications and/or changes in various respects, all without departing from the spirit of the present application. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict. 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 application.
It is noted that various aspects of the embodiments are described below within the scope of the appended claims. It should be apparent that the aspects described herein may be embodied in a wide variety of forms and that any specific structure and/or function described herein is merely illustrative. Based on the present application, one skilled in the art should appreciate that one aspect described herein may be implemented independently of any other aspects and that two or more of these aspects may be combined in various ways. For example, an apparatus may be implemented and/or a method practiced using any number of the aspects set forth herein. Additionally, such an apparatus may be implemented and/or such a method may be practiced using other structure and/or functionality in addition to one or more of the aspects set forth herein.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present application, and the drawings only show the components related to the present application rather than the number, shape and size of the components in actual implementation, and the type, amount and ratio of the components in actual implementation may be changed arbitrarily, and the layout of the components may be more complicated.
In addition, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the aspects may be practiced without these specific details.
The present application provides a new zoom control method for controlling zoom of a camera of a crane, so as to solve the problems that the surrounding environment of the crane is not suitable for controlling the zoom function of the camera by using a network cable for wiring, and the network camera cannot be directly accessed by the existing display.
In a first aspect, an embodiment of the present application provides a camera zoom system based on a CAN bus (Controller Area Network), and the composition of the camera zoom system specifically includes a CAN bus display, a converter, and a camera, referring to fig. 1.
The output end of the CAN bus display is communicated with the input end of the converter through a CAN bus, and the CAN bus display sends a first zooming signal to the converter. In this embodiment, the first zoom signal is communicated through a CAN bus, and compared with a general communication bus, the data communication of the CAN bus has outstanding reliability, real-time performance and flexibility, and the CAN bus is applied based on its good performance and unique design.
Furthermore, HC-Suk8102 is selected for the CAN bus display model, and all CAN communication protocols of CAN2.0 standard are supported by a CAN bus port, including CANOPEN and CAN J1939, so that the requirements of high vibration and wide temperature of engineering machinery CAN be completely met, the remote monitoring function CAN be realized, and a more convenient control mode CAN be provided for the control of the camera. It should be noted that the types of the CAN bus display are not limited to those listed in the embodiment, and other types of CAN bus displays are also within the scope of the present application.
The output end of the converter is wirelessly connected with the camera, and the converter is used for converting a first zooming signal communicated through the CAN bus into a second zooming signal transmitted through wireless and transmitting the second zooming signal to the camera. It should be noted that the first zoom signal and the second zoom signal are the same zoom signal for controlling the camera, and are different only in transmission mode, and for convenience of understanding, they are named as the first zoom signal and the second zoom signal for distinguishing, and are not limited to this naming mode.
In this embodiment, the converter is one of the types of GCAN-202, SG-CANET-210, LCWLAN-600E and LCWLAN-622E. It should be understood that the type of the converter is not limited to the type of the converter listed in the present embodiment, and other types of converters are also within the scope of the present application as long as the converter CAN convert the signals communicated by the CAN bus into wireless signals when the converter is installed in place.
Further, the output end of the converter is wirelessly connected with the camera through the ethernet, and the CAN bus communication is converted into a TCP (Transmission Control Protocol) communication. That is to say, the converter converts the signals of the CAN bus communication into the second zoom signal transmitted by the ethernet, and then outputs the second zoom signal from the output end, and transmits the second zoom signal to the camera, wherein the communication protocol is TCP.
The camera is used for receiving the second zooming signal sent by the converter and zooming according to the second zooming signal. Because the camera adopts wireless control, can carry out the multiple spot cloth accuse to the hoist according to concrete actual demand, realize the real time monitoring of full aspect, the operator obtains more detailed feedback.
Preferably, the camera is an AHD1080P high-definition camera.
Preferably, the zoom factor of the camera is 30 times. It should be understood that the camera head can be selected according to actual field requirements, and is not limited to the listed embodiments.
Preferably, the protection grade of the camera is IP 67.
In a second aspect, an embodiment of the present application further provides a method for controlling a camera zoom system based on a CAN bus, where the method includes:
the output end of the CAN bus display sends a first zooming signal through a CAN bus, wherein the first zooming signal is a signal which controls the zooming of the camera and is communicated through the CAN bus;
the input end of the converter receives a first zooming signal communicated through the CAN bus and converts the first zooming signal into a second zooming signal transmitted wirelessly, and the second zooming signal is output from the output end of the converter;
and the camera receives the second zooming signal and zooms according to the second zooming signal.
According to a specific implementation manner of the embodiment of the application, the wirelessly transmitted second zoom signal is transmitted through the ethernet, and CAN bus communication is converted into TCP communication.
The embodiment provided by the invention provides a new zooming control mode aiming at the problem of zooming control of the camera of the existing crane, which is used for solving the problems that the surrounding environment of the crane is not suitable for using a network cable for wiring to control the zooming function of the camera and the existing display cannot directly access the network camera, the invention provides the camera zooming system based on the CAN bus and the control method thereof, which CAN be applied to zooming control of the network camera, solve the problem that the zooming of the network camera cannot be directly controlled on site on the traditional engineering machinery, and avoid controlling the zooming of the camera by laying the network cable near the engineering machinery such as the crane; the multi-point monitoring can be carried out according to the monitoring requirement of the crane, so that various state information of the vehicle can be timely and detailed to feed back, an operator can use the crane more conveniently and flexibly, and the crane is more rapid and accurate to operate.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (9)
1. A camera zooming system based on a CAN bus is characterized by comprising a CAN bus display, a converter and a camera, wherein,
the output end of the CAN bus display is communicated with the input of the converter through a CAN bus, and the CAN bus display sends a first zooming signal to the converter;
the output end of the converter is wirelessly connected with the camera, and the converter is used for converting a first zooming signal communicated through the CAN bus into a second zooming signal transmitted wirelessly and transmitting the second zooming signal to the camera;
the camera is used for receiving the second zooming signal sent by the converter and zooming according to the second zooming signal.
2. The CAN-bus based camera zoom system of claim 1, wherein an output of the converter is wirelessly connected to the camera via ethernet to convert CAN-bus communication into TCP communication.
3. The CAN bus based camera zoom system of claim 1, wherein the CAN bus display is model number HC-Suk 8102.
4. The CAN bus based camera zoom system of claim 1, wherein the converter is of one of the models GCAN-202, SG-CANET-210, LCWLAN-600E and LCWLAN-622E.
5. The CAN bus based camera zoom system of claim 1, wherein the camera is an AHD1080P high definition camera.
6. The CAN bus based camera zoom system of claim 1, wherein the zoom factor of the camera is 30 times.
7. The CAN bus based camera zoom system of claim 1, wherein the camera has a protection rating of IP 67.
8. A control method of a camera zooming system based on a CAN bus is characterized by comprising the following steps:
the output end of the CAN bus display sends a first zooming signal through a CAN bus;
the input end of the converter receives a first zooming signal communicated through the CAN bus and converts the first zooming signal into a second zooming signal transmitted wirelessly, and the second zooming signal is output from the output end of the converter;
and the camera receives the second zooming signal and zooms according to the second zooming signal.
9. The method of claim 8, wherein the wirelessly transmitted second zoom signal is transmitted via ethernet to convert the CAN bus communication into TCP communication.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110313479.4A CN113225476A (en) | 2021-03-24 | 2021-03-24 | Camera zooming system based on CAN bus and control method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110313479.4A CN113225476A (en) | 2021-03-24 | 2021-03-24 | Camera zooming system based on CAN bus and control method |
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| CN202353713U (en) * | 2011-11-01 | 2012-07-25 | 大连科信起重电器有限公司 | Tower crane video monitoring system |
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