CN112165606A - Vehicle-mounted camera, motor vehicle video acquisition system and motor vehicle video acquisition method - Google Patents
Vehicle-mounted camera, motor vehicle video acquisition system and motor vehicle video acquisition method Download PDFInfo
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- CN112165606A CN112165606A CN202010985762.7A CN202010985762A CN112165606A CN 112165606 A CN112165606 A CN 112165606A CN 202010985762 A CN202010985762 A CN 202010985762A CN 112165606 A CN112165606 A CN 112165606A
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000004891 communication Methods 0.000 claims abstract description 47
- 238000013500 data storage Methods 0.000 claims description 9
- 238000004806 packaging method and process Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 230000008054 signal transmission Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- 239000002699 waste material Substances 0.000 description 1
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/268—Signal distribution or switching
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/765—Interface circuits between an apparatus for recording and another apparatus
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Mechanical Engineering (AREA)
- Studio Devices (AREA)
Abstract
The embodiment of the invention provides a vehicle-mounted camera, a motor vehicle video acquisition system and a motor vehicle video acquisition method, wherein the vehicle-mounted camera is connected with a vehicle-mounted multimedia device and comprises the following modules: the video acquisition module is used for acquiring video images around the motor vehicle in real time and converting the video images into video digital signals; the serial communication module is directly connected with the vehicle-mounted multimedia device through a wire harness to establish serial communication connection and is used for carrying out serialization processing on the video digital signal to form a serialized video signal and then sending the serialized video signal to the vehicle-mounted multimedia device; and the power supply module is used for supplying power to the video acquisition module and the serial communication module. The vehicle-mounted camera does not store, process and encode video data, so that the occupied size of the whole vehicle-mounted camera is smaller; and only the video digital signals are subjected to serialization processing and then are sent to the vehicle-mounted multimedia device, so that the number and the size of transmission wire harnesses are reduced, and the cost of the wire harnesses is reduced.
Description
Technical Field
The embodiment of the invention relates to the technical field of vehicle-mounted electronic equipment, in particular to a vehicle-mounted camera, a motor vehicle video acquisition system and a motor vehicle video acquisition method.
Background
Generally, a vehicle video acquisition and storage system comprises a vehicle-mounted camera and a vehicle-mounted multimedia device which are installed on a vehicle, the vehicle-mounted camera generally comprises a video acquisition module for implementing a video acquisition function and a controller which is connected with the video acquisition module to perform preliminary processing and storage on video data acquired by the video acquisition module, and the controller is further connected with the vehicle-mounted multimedia device through a wiring harness. The preliminary processing by the controller typically includes compression encoding and video storage of the video data. When the collected video needs to be played and processed on the vehicle-mounted multimedia device, the controller sends the stored video data to the vehicle-mounted multimedia device through the cable harness, and the vehicle-mounted multimedia device can store the video data and perform control display again. Therefore, the vehicle-mounted camera and the vehicle-mounted multimedia device have video data storage performance, video data can be stored, functions are repeated, excessive resources and waste are caused, and the storage volume of the vehicle-mounted camera is relatively large for realizing; moreover, the requirement on the performance of the wire harness is high, and the cost of the wire harness is also high.
Disclosure of Invention
The technical problem to be solved by the embodiment of the invention is to provide a vehicle-mounted camera which can effectively reduce the cost.
The embodiment of the invention further aims to solve the technical problem of providing a motor vehicle video acquisition system which can effectively reduce the cost.
The embodiment of the invention further aims to solve the technical problem of providing a motor vehicle video acquisition method which can effectively reduce the cost.
In order to solve the above technical problem, an embodiment of the present invention provides the following technical solutions: the vehicle-mounted camera is connected with a vehicle-mounted multimedia device and comprises the following modules:
the video acquisition module is used for acquiring video images around the motor vehicle in real time and converting the video images into video digital signals;
the serial communication module is directly connected with the vehicle-mounted multimedia device through a wire harness to establish serial communication connection and is used for carrying out serialization processing on the video digital signal to form a serialized video signal and then sending the serialized video signal to the vehicle-mounted multimedia device; and
and the power supply module is used for supplying power to the video acquisition module and the serial communication module.
Further, the serial communication module is a serializer.
On the other hand, in order to solve the above technical problem, an embodiment of the present invention provides the following technical solutions: a motor vehicle video acquisition system comprises a vehicle-mounted camera and a vehicle-mounted multimedia device connected with the vehicle-mounted camera, wherein the vehicle-mounted camera is the vehicle-mounted camera.
Further, the vehicle-mounted multimedia device includes:
the deserializing communication module is directly connected with the serial communication module of the vehicle-mounted camera through the wiring harness to establish serial communication connection and is used for receiving the serialized video signals and deserializing the serialized video signals to form video digital signals;
the data processing module is connected with the deserializing communication module and used for carrying out image signal processing and video coding on the video digital signal to obtain video data and then packaging the video data to form a packaging data packet; and
and the data storage module is connected with the data processing module and used for storing the encapsulated data packet.
Further, the vehicle-mounted multimedia device further comprises:
and the video display module is connected with the data storage module and used for reading and de-encapsulating the encapsulated data packet and displaying videos.
Further, the deserializing communication module is a deserializer.
In another aspect, to solve the above technical problem, an embodiment of the present invention provides the following technical solutions: a motor vehicle video acquisition method comprises the following steps:
the power supply module of the vehicle-mounted camera supplies power to the video acquisition module and the serial communication module;
the video acquisition module is used for acquiring video images around the motor vehicle in real time and converting the video images into video digital signals; and
and carrying out serialization processing on the video digital signal through the serial communication module to form a serialized video signal, and then sending the serialized video signal to the vehicle-mounted multimedia device.
Further, the serial communication module is a deserializer.
After the technical scheme is adopted, the embodiment of the invention at least has the following beneficial effects: the embodiment of the invention acquires video images around the motor vehicle in real time through the video acquisition module, converts the video images into video digital signals, performs serialization processing on the video digital signals through the serial communication module to form serialized video signals, and then sends the serialized video signals to the vehicle-mounted multimedia device; and the video digital signals are transmitted to the vehicle-mounted multimedia device after being subjected to serialization processing only, and the video digital signals subjected to the serialization processing are compatible with image resolution and signal transmission, so that the number and the size of transmission wire harnesses are reduced, and the cost of the wire harnesses is reduced.
Drawings
Fig. 1 is a block diagram of an alternative embodiment of a vehicle video capture system according to the present invention.
Fig. 2 is a schematic structural block diagram of a vehicle-mounted multimedia device according to an alternative embodiment of the vehicle video capture system of the present invention.
Fig. 3 is a schematic structural block diagram of a vehicle-mounted multimedia device of another alternative embodiment of the vehicle video capture system of the present invention.
FIG. 4 is a flowchart illustrating steps of an alternative embodiment of a method for capturing video of a vehicle according to the present invention.
Detailed Description
The present application will now be described in further detail with reference to the accompanying drawings and specific examples. It should be understood that the following illustrative embodiments and description are only intended to explain the present invention, and are not intended to limit the present invention, and features of the embodiments and examples in the present application may be combined with each other without conflict.
As shown in fig. 1, an alternative embodiment of the present invention provides an in-vehicle camera 1 connected to an in-vehicle multimedia device 3, where the in-vehicle camera 1 is composed of the following modules:
the video acquisition module 10 is used for acquiring video images around the motor vehicle in real time and converting the video images into video digital signals;
the serial communication module 12 is directly connected with the vehicle-mounted multimedia device 3 through a wire harness 5 to establish serial communication connection, and is used for carrying out serialization processing on the video digital signals to form serialized video signals and then sending the serialized video signals to the vehicle-mounted multimedia device 3; and
and the power supply module 14 is used for supplying power to the video acquisition module 10 and the serial communication module 12.
In the embodiment of the invention, the video acquisition module 10 acquires video images around the motor vehicle in real time, converts the video images into video digital signals, carries out serialization processing on the video digital signals through the serial communication module 12 to form serialized video signals, and then sends the serialized video signals to the vehicle-mounted multimedia device 3, the vehicle-mounted camera 1 does not store, process and encode video data, the occupied volume of the whole vehicle-mounted camera 3 is smaller, and the power module 14 is adopted to supply power to the video acquisition module 10 and the serial communication module 12, so that the structure is simple; and only send to on-vehicle multimedia device 3 after carrying out serialization processing to the video digital signal, the video digital signal of serialization processing gives consideration to image resolution and signal transmission, reduces the quantity and the size of transmission pencil, has reduced the cost of pencil.
In an alternative embodiment of the present invention, the serial communication module 12 is a serializer. In this embodiment, the serial communication module 12 may directly adopt a serializer, so that the circuit structure is simpler and the implementation is more convenient.
On the other hand, as shown in fig. 1, a vehicle video capture system according to an embodiment of the present invention includes a vehicle-mounted camera 1 and a vehicle-mounted multimedia device 3 connected to the vehicle-mounted camera 1, where the vehicle-mounted camera 1 is a vehicle-mounted camera as described in any one of the above. The motor vehicle video acquisition system of the embodiment adopts the vehicle-mounted camera 1, and the vehicle-mounted camera 1 only carries out video acquisition, so that the cost can be effectively reduced.
In an alternative embodiment of the present invention, as shown in fig. 2, the vehicle-mounted multimedia apparatus 3 includes:
the deserializing communication module 30 is directly connected with the serial communication module 12 of the vehicle-mounted camera 1 through the wiring harness 5 to establish serial communication connection, and is used for receiving the serialized video signals and deserializing the serialized video signals to form video digital signals;
a data processing module 32, connected to the deserializing communication module 30, for performing image signal processing and video coding on the video digital signal to obtain video data, and then encapsulating the video data to form an encapsulated data packet; and
and the data storage module 34 is connected with the data processing module 32 and used for storing the encapsulated data packet.
In the embodiment of the invention, the deserializing communication module 30 receives the serialized video signals transmitted by the vehicle-mounted camera 1 and deserializes the serialized video signals to form video digital signals, so that the data processing module 32 can conveniently process, encode and package image signals, and finally the data storage module 34 can store the video digital signals, thereby saving the space of the vehicle-mounted camera 1, reasonably utilizing the image signal processing, encoding and storage resources of the vehicle-mounted multimedia device 3, and facilitating more vehicle-mounted equipment terminals (such as vehicle-mounted navigation) to simultaneously acquire the video data of the same source end from the vehicle-mounted multimedia.
In an alternative embodiment of the present invention, as shown in fig. 3, the vehicle-mounted multimedia apparatus 3 further includes:
and the video display module 36 is connected with the data storage module 34 and is used for reading and de-encapsulating the encapsulated data packet and performing video display. In this embodiment, the video display module 36 is further used for reading and decapsulating the encapsulated data packet in the data storage module 34 and performing video display, so that resources are reasonably utilized, and the vehicle-mounted camera 1 acquires video images around the motor vehicle to perform video display, thereby reminding a driver.
In an optional embodiment of the present invention, the deserializing communication module 30 is a deserializer.
In another aspect, as shown in fig. 4, an embodiment of the present invention provides a method for capturing a video of a motor vehicle, including the following steps:
s1: the power supply module 14 of the vehicle-mounted camera 1 supplies power to the video acquisition module 10 and the serial communication module 12;
s2: the video acquisition module 10 is used for acquiring video images around the motor vehicle in real time and converting the video images into video digital signals; and
s3: the video digital signal is serialized through the serial communication module 12 to form a serialized video signal, and then the serialized video signal is sent to the vehicle-mounted multimedia device 3.
According to the embodiment of the invention, through the method, the power module 14 is adopted to supply power to the video acquisition module 10 and the serial communication module 12, the video acquisition module 10 acquires video images around a motor vehicle in real time and converts the video images into video digital signals, the serial communication module 12 carries out serialization processing on the video digital signals to form serialized video signals, and then the serialized video signals are sent to the vehicle-mounted multimedia device 3, the vehicle-mounted camera 1 does not store, process and encode the video data, the occupied size of the whole vehicle-mounted camera 3 is smaller, and the vehicle-mounted multimedia device 3 is sent after only carrying out serialization processing on the video digital signals, the serialized video digital signals take image resolution and signal transmission into account, the number and the size of transmission wire harnesses are reduced, and the cost of the wire harnesses is reduced.
In an alternative embodiment of the present invention, the serial communication module 12 is a deserializer. In this embodiment, the serial communication module 12 may directly adopt a serializer, so that the circuit structure is simpler and the implementation is more convenient.
The functions described in the embodiments of the present invention may be stored in a storage medium readable by a computing device if they are implemented in the form of software functional modules or units and sold or used as independent products. Based on such understanding, part of the contribution of the embodiments of the present invention to the prior art or part of the technical solution may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computing device (which may be a personal computer, a server, a mobile computing device, a network device, or the like) to execute all or part of the steps of the method described in the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes. The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts among the embodiments are referred to each other.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (8)
1. The vehicle-mounted camera is connected with a vehicle-mounted multimedia device and is characterized by comprising the following modules:
the video acquisition module is used for acquiring video images around the motor vehicle in real time and converting the video images into video digital signals;
the serial communication module is directly connected with the vehicle-mounted multimedia device through a wire harness to establish serial communication connection and is used for carrying out serialization processing on the video digital signal to form a serialized video signal and then sending the serialized video signal to the vehicle-mounted multimedia device; and
and the power supply module is used for supplying power to the video acquisition module and the serial communication module.
2. The vehicular camera according to claim 1, wherein the serial communication module is a serializer.
3. A vehicle video acquisition system comprising a vehicle-mounted camera and a vehicle-mounted multimedia device connected to the vehicle-mounted camera, wherein the vehicle-mounted camera is the vehicle-mounted camera according to claim 1 or 2.
4. The automotive video capture system of claim 3, wherein the on-board multimedia device comprises:
the deserializing communication module is directly connected with the serial communication module of the vehicle-mounted camera through the wiring harness to establish serial communication connection and is used for receiving the serialized video signals and deserializing the serialized video signals to form video digital signals;
the data processing module is connected with the deserializing communication module and used for carrying out image signal processing and video coding on the video digital signal to obtain video data and then packaging the video data to form a packaging data packet; and
and the data storage module is connected with the data processing module and used for storing the encapsulated data packet.
5. The automotive video capture system of claim 4, wherein the on-board multimedia device further comprises:
and the video display module is connected with the data storage module and used for reading and de-encapsulating the encapsulated data packet and displaying videos.
6. The automotive video capture system of claim 4, wherein the deserializing communication module is a deserializer.
7. A method for capturing a video of a motor vehicle, said method comprising the steps of:
the power supply module of the vehicle-mounted camera supplies power to the video acquisition module and the serial communication module;
the video acquisition module is used for acquiring video images around the motor vehicle in real time and converting the video images into video digital signals; and
and carrying out serialization processing on the video digital signal through the serial communication module to form a serialized video signal, and then sending the serialized video signal to the vehicle-mounted multimedia device.
8. The vehicle video capture method of claim 7, wherein the serial communication module is a deserializer.
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Cited By (1)
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