CN111314638A - Video data recording method and recording device - Google Patents
Video data recording method and recording device Download PDFInfo
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- CN111314638A CN111314638A CN202010014435.7A CN202010014435A CN111314638A CN 111314638 A CN111314638 A CN 111314638A CN 202010014435 A CN202010014435 A CN 202010014435A CN 111314638 A CN111314638 A CN 111314638A
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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
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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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- Television Signal Processing For Recording (AREA)
Abstract
The invention discloses a video data recording method and a recording device, comprising the following steps: the recording end shoots a video, compresses data and transmits the data to the receiving end in a wireless mode; the receiving end stores uncompressed data; selecting at least one of the display modes, comprising: decompressing and transmitting to a display screen for displaying; and transmitting the uncompressing data to an upper computer, and decompressing and displaying by the upper computer. According to the scheme, after the receiving end receives the compressed data, judgment and selection are carried out instead of decompression, so that the processing pressure is reduced, the operation efficiency is improved, and the energy consumption and the time delay are reduced under most conditions. The substantial effects of the invention include: different conditions are handled through different processing modes of compressed data, the reasonable utilization efficiency of hardware resources is improved, energy consumption and time delay are reduced, cost is reduced, and performance is improved.
Description
Technical Field
The present invention relates to the field of signal processing, and in particular, to a video data recording method and apparatus.
Background
The current recorder has great problem in the aspect of displaying and storing, is limited by a wireless channel, video data can only be compressed and then transmitted, and the video data needs to be completely decompressed when being displayed on a display screen.
The invention such as the authorization notice number CN101867760B relates to a high-definition video and audio wireless transmission system and a method thereof, wherein the high-definition video and audio wireless transmission system comprises a transmitting module for transmitting high-definition video and audio data signals and a receiving module for receiving the high-definition video and audio data signals, and the transmitting module and the receiving module adopt a wireless communication mode to transmit the high-definition video and audio data signals without compression; after the transmitting module or the receiving module performs priority processing on the data signals needing wireless transmission, the maximum margin of a wireless channel is adopted as a data transmission channel for transmission.
The prior art has a single working mode, lacks pertinence to different situations, and causes poor energy consumption and time delay under the limitation of hardware.
Disclosure of Invention
Aiming at the problem of poor energy consumption and time delay in the prior art, the invention provides a video data recording method and a video data recording device, which reasonably utilize each platform in the aspect of architecture design and enable the power consumption and the time delay to be better through different working modes.
The technical scheme of the invention is as follows.
A video data recording method, comprising: the recording end shoots a video, compresses data and transmits the data to the receiving end in a wireless mode; the receiving end stores uncompressed data; selecting at least one of the display modes, comprising: decompressing and transmitting to a display screen for displaying; and transmitting the uncompressing data to an upper computer, and decompressing and displaying by the upper computer. According to the scheme, after the receiving end receives the compressed data, judgment and selection are carried out instead of decompression, so that the processing pressure is reduced, the operation efficiency is improved, and the energy consumption and the time delay are reduced under most conditions.
Preferably, the selection process of the display mode includes: and judging the dominable coefficient of the receiving end, if the dominable coefficient is smaller than a threshold value, only transmitting uncompressed data to an upper computer, and if the dominable coefficient is larger than or equal to the threshold value, opening two display modes. The dominating coefficient is a numerical value defined after limited times of experiments and induction of a plurality of pieces of common information and is used for comprehensively judging energy consumption or risk.
Preferably, the disposable coefficient includes a remaining power, a dangerous temperature margin, a storage space margin and a processing capacity margin, and at least one disposable coefficient is selected during the judgment. The dangerous temperature allowance is the difference value between the current temperature and the early warning temperature, and the processing capacity allowance is the difference value between the current operation amount and the peak operation amount of the processor. The threshold value of the value is determined by limited tests and self-definition according to actual conditions after induction, and is used for comprehensively judging energy consumption or risk.
A video data recording apparatus comprising a recording end and a receiving end, the recording end comprising: a shooting unit that shoots a video; a compression unit compressing video data; the communication unit is used for carrying out data transmission with the receiving end; the receiving end includes: the communication unit is used for carrying out data transmission with the recording end; the central control unit selects a display mode and calls a corresponding function; the storage unit is used for storing uncompressed data; the interface unit is connected with the upper computer; the display mode comprises the following steps: decompressing and transmitting to a display screen for displaying; and transmitting the uncompressing data to an upper computer, and decompressing and displaying by the upper computer.
Preferably, the process of selecting the display mode by the central control unit includes: and judging the dominable coefficient of the receiving end, if the dominable coefficient is smaller than a threshold value, only transmitting uncompressed data to an upper computer, and if the dominable coefficient is larger than or equal to the threshold value, opening two display modes.
Preferably, the disposable coefficient includes a remaining power, a dangerous temperature margin, a storage space margin and a processing capacity margin, and at least one disposable coefficient is selected during the judgment.
Preferably, the central control unit comprises a customized FPGA and an ARM, the storage unit is an SD card, and the interface unit is a USB interface.
The substantial effects of the invention include: different conditions are handled through different processing modes of compressed data, the reasonable utilization efficiency of hardware resources is improved, energy consumption and time delay are reduced, cost is reduced, and performance is improved.
Drawings
FIG. 1 is a flow chart of an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. In addition, numerous specific details are set forth below in order to provide a better understanding of the present invention. It will be understood by those skilled in the art that the present invention may be practiced without some of these specific details. In some instances, methods, means, elements and circuits that are well known to those skilled in the art have not been described in detail so as not to obscure the present invention.
In the description of the embodiments herein, "/" means "or" unless otherwise specified, for example, a/B may mean a or B; "and/or" herein is merely an association describing an associated object, and means that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, in the description of the embodiments of the present application, "a plurality" means two or more than two.
Example (b):
a video data recording method, as shown in fig. 1, comprising: the recording end shoots a video, compresses data and transmits the data to the receiving end in a wireless mode; the receiving end stores uncompressed data; selecting at least one of the display modes, comprising: decompressing and transmitting to a display screen for displaying; and transmitting the uncompressing data to an upper computer, and decompressing and displaying by the upper computer. According to the scheme, after the receiving end receives the compressed data, judgment and selection are carried out instead of decompression, so that the processing pressure is reduced, the operation efficiency is improved, and the energy consumption and the time delay are reduced under most conditions.
The selection process of the display mode comprises the following steps: and judging the dominable coefficient of the receiving end, if the dominable coefficient is smaller than a threshold value, only transmitting uncompressed data to an upper computer, and if the dominable coefficient is larger than or equal to the threshold value, opening two display modes. The dominating coefficient is a numerical value defined after limited times of experiments and induction of a plurality of pieces of common information and is used for comprehensively judging energy consumption or risk.
The disposable coefficient comprises residual electric quantity, dangerous temperature allowance, storage space allowance and processing capacity allowance, and at least one disposable coefficient is selected during judgment. The dangerous temperature allowance is the difference value between the current temperature and the early warning temperature, and the processing capacity allowance is the difference value between the current operation amount and the peak operation amount of the processor. The threshold value of the value is determined by limited tests and self-definition according to actual conditions after induction, and is used for comprehensively judging energy consumption or risk.
A video data recording apparatus includes a recording end and a receiving end, the recording end including: a shooting unit that shoots a video; a compression unit compressing video data; the communication unit is used for carrying out data transmission with the receiving end; the receiving end includes: the communication unit is used for carrying out data transmission with the recording end; the central control unit selects a display mode and calls a corresponding function; the storage unit is used for storing uncompressed data; the interface unit is connected with the upper computer; the display mode comprises the following steps: decompressing and transmitting to a display screen for displaying; and transmitting the uncompressing data to an upper computer, and decompressing and displaying by the upper computer.
The process of selecting the display mode by the central control unit comprises the following steps: and judging the dominable coefficient of the receiving end, if the dominable coefficient is smaller than a threshold value, only transmitting uncompressed data to an upper computer, and if the dominable coefficient is larger than or equal to the threshold value, opening two display modes.
The disposable coefficient comprises residual electric quantity, dangerous temperature allowance, storage space allowance and processing capacity allowance, and at least one disposable coefficient is selected during judgment.
The central control unit comprises a customized FPGA and an ARM, the storage unit is an SD card, and the interface unit is a USB interface.
Wherein the radio frequency part of the communication unit adopts a zero intermediate frequency scheme of a discrete device. Two channels are built in the FPGA, one channel is an uncompressing channel for the upper computer, and the other channel is a decompressing channel for the display screen. The FPGA acquires data from the analog-to-digital converter of the communication unit, stores the data in the SD card, reads video data from the SD card and performs selective processing according to needs.
In addition, the FPGA and ARM interface of the embodiment uses a high-speed GPMC to realize data interaction between two chips by a method of compiling an equipment tree; a usb3.0 interface is used between the ARM and the upper computer, and the DMA and producer consumer modes are used for realizing rapid data transmission; the display screen realizes online browsing by adopting a transplantation driving mode.
Through the description of the above embodiments, those skilled in the art will understand that, for convenience and simplicity of description, only the division of the above functional modules is used as an example, and in practical applications, the above function distribution may be completed by different functional modules according to needs, that is, the internal structure of a specific device is divided into different functional modules to complete all or part of the above described functions.
Units described as separate parts may or may not be physically separate, and parts displayed as units may be one physical unit or a plurality of physical units, may be located in one place, or may be distributed to a plurality of different places. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present application may be essentially or partially contributed to by the prior art, or all or part of the technical solutions may be embodied in the form of a software product, where the software product is stored in a storage medium and includes several instructions to enable a device (which may be a single chip, a chip, or the like) or a processor (processor) to execute all or part of the steps of the methods of the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
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 person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by 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 (7)
1. A video data recording method, comprising:
the recording end shoots a video, compresses data and transmits the data to the receiving end in a wireless mode;
the receiving end stores uncompressed data;
selecting at least one of the display modes, comprising: decompressing and transmitting to a display screen for displaying; and transmitting the uncompressing data to an upper computer, and decompressing and displaying by the upper computer.
2. A video data recording method according to claim 1, wherein the selection of the display mode comprises: and judging the dominable coefficient of the receiving end, if the dominable coefficient is smaller than a threshold value, only transmitting uncompressed data to an upper computer, and if the dominable coefficient is larger than or equal to the threshold value, opening two display modes.
3. The method of claim 2, wherein the dominable coefficients include remaining power, dangerous temperature margin, storage space margin, and processing capacity margin, and at least one dominable coefficient is selected when determining.
4. A video data recording apparatus comprising a recording end and a receiving end, wherein the recording end comprises: a shooting unit that shoots a video; a compression unit compressing video data; the communication unit is used for carrying out data transmission with the receiving end; the receiving end includes: the communication unit is used for carrying out data transmission with the recording end; the central control unit selects a display mode and calls a corresponding function; the storage unit is used for storing uncompressed data; the interface unit is connected with the upper computer; the display mode comprises the following steps: decompressing and transmitting to a display screen for displaying; and transmitting the uncompressing data to an upper computer, and decompressing and displaying by the upper computer.
5. The video data recording apparatus according to claim 4, wherein the process of selecting the display mode by the central control unit comprises: and judging the dominable coefficient of the receiving end, if the dominable coefficient is smaller than a threshold value, only transmitting uncompressed data to an upper computer, and if the dominable coefficient is larger than or equal to the threshold value, opening two display modes.
6. The apparatus of claim 5, wherein the dominable coefficients include remaining power, dangerous temperature margin, storage space margin, and processing capacity margin, and at least one dominable coefficient is selected when determining.
7. The apparatus of claim 5 or 6, wherein the central control unit comprises a customized FPGA and an ARM, the storage unit is an SD card, and the interface unit is a USB interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010014435.7A CN111314638A (en) | 2020-01-07 | 2020-01-07 | Video data recording method and recording device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010014435.7A CN111314638A (en) | 2020-01-07 | 2020-01-07 | Video data recording method and recording device |
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| CN111314638A true CN111314638A (en) | 2020-06-19 |
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Citations (5)
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| CN101207809A (en) * | 2006-12-19 | 2008-06-25 | 浙江工业大学 | Method and system for transmitting real time flow media based on video frequency frame splitting |
| CN104902207A (en) * | 2015-06-17 | 2015-09-09 | 四川特伦特科技股份有限公司 | High speed signal collection method |
| CN105979284A (en) * | 2016-05-10 | 2016-09-28 | 杨�远 | Video sharing method of mobile terminal |
| CN106488102A (en) * | 2016-12-01 | 2017-03-08 | 武汉广联在线科技有限公司 | Law enforcement record system based on smart mobile phone and law enforcement record data retransmission method |
| CN107580339A (en) * | 2017-08-25 | 2018-01-12 | 中国联合网络通信集团有限公司 | A kind of information transferring method, device and wireless communication system |
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2020
- 2020-01-07 CN CN202010014435.7A patent/CN111314638A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101207809A (en) * | 2006-12-19 | 2008-06-25 | 浙江工业大学 | Method and system for transmitting real time flow media based on video frequency frame splitting |
| CN104902207A (en) * | 2015-06-17 | 2015-09-09 | 四川特伦特科技股份有限公司 | High speed signal collection method |
| CN105979284A (en) * | 2016-05-10 | 2016-09-28 | 杨�远 | Video sharing method of mobile terminal |
| CN106488102A (en) * | 2016-12-01 | 2017-03-08 | 武汉广联在线科技有限公司 | Law enforcement record system based on smart mobile phone and law enforcement record data retransmission method |
| CN107580339A (en) * | 2017-08-25 | 2018-01-12 | 中国联合网络通信集团有限公司 | A kind of information transferring method, device and wireless communication system |
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Application publication date: 20200619 |
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