CN105578148A - Vehicle-mounted transmission device and method - Google Patents
Vehicle-mounted transmission device and method Download PDFInfo
- Publication number
- CN105578148A CN105578148A CN201610010288.XA CN201610010288A CN105578148A CN 105578148 A CN105578148 A CN 105578148A CN 201610010288 A CN201610010288 A CN 201610010288A CN 105578148 A CN105578148 A CN 105578148A
- Authority
- CN
- China
- Prior art keywords
- signal
- video signal
- vehicle
- digital
- coaxial
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
-
- 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
- H04N23/65—Control of camera operation in relation to power supply
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/015—High-definition television systems
Abstract
The invention relates to a vehicle-mounted transmission device which comprises a camera module, a micro control processing unit, a signal encoding modulator, a signal demodulation decoder, a video signal conversion module, and a display device processor, wherein the camera module is used for generating a digital video signal; the micro control processing unit is used for acquiring a backing-up signal and processing the backing-up signal to obtain a digital signal; the signal encoding modulator is used for carrying out encoding and carrier modulation on the digital video signal to obtain a modulated video signal; the signal demodulation decoder is used for demodulating and decoding the modulated video signal to obtain a decoded video signal; the video signal conversion module is used for converting a format of the decoded video signal to obtain a video signal in a preset format; and the display device processor is used for receiving the video signal in the preset format, displaying the video signal in the preset format and carrying out a corresponding control operation according to the digital signal. The invention also provides a vehicle-mounted transmission method. The vehicle-mounted transmission device and method which are provided by the invention achieve remote transmission of a high-definition digital video, and have a wide application prospect.
Description
Technical field
The present invention relates to automotive field, particularly relate to a kind of vehicle-mounted transmitting device and method.
Background technology
Along with the development of automobile assistant driving technology, video backing back-sight visual system is more and more universal.Show because reverse backsight system needs the camera video of automobile tail licence plate part to be transferred to automotive front driver console part, its transmission range reaches more than 6 meters, based on the restriction of technology and cost, the video of current reverse backsight system is all transmit with modal composite video (CVBS) analog form.There is following problem, video image quality is very poor, and resolution is usually less than 640*480.Current automobile middle control screen size and resolution more and more higher, screen size can up to more than 10.1 inches, and resolution is then up to more than 1024*600, and traditional CVBS video backing system has become the bottleneck of restriction reversing safety and Consumer's Experience; Transmission line needs 4, and cost is high, and wire diameter is thicker; Astern signal is analog signal, and part vehicle is pulse width modulation (PWM) signal (such as popular car system), adds the intractability of distal displayed equipment.
Summary of the invention
In view of this, need provide a kind of vehicle-mounted transmitting device, this device can provide the transmission realizing high-definition digital video, improves astern signal treatment effeciency simultaneously.
In addition, also need to provide a kind of vehicle-mounted transmission method, the method provides the transmission realizing high-definition digital video, improves astern signal treatment effeciency simultaneously.
Vehicle-mounted transmitting device in embodiment of the present invention, comprises camera module, micro control processing unit, Signal coding modulator, signal receiving decoder, vision signal modular converter, display apparatus processes device.
Camera module, for generation of digital video signal;
Micro control processing unit, for obtaining astern signal, and carries out to described astern signal the digital signal that filtering process forms stability criterion;
Signal coding modulator, for receiving described digital video signal, described digital signal, to described digital video signal, encodes and carrier modulation, to obtain modulating video signal;
Signal receiving decoder, for obtaining described modulating video signal, carries out demodulation code to described modulating video signal, to obtain decoded video signal;
Vision signal modular converter, for changing the form of described decoded video signal, to obtain the vision signal of preset format;
And display apparatus processes device, for receiving the vision signal of described preset format, the vision signal of described preset format is shown, and carry out corresponding control operation according to described digital signal.
Preferably, also comprise:
Wired power supply output module, for receiving described digital signal, described modulating video signal, and is transmitted described digital signal, described modulating video signal by coaxial signal line;
Wired power supply input module, for receiving described digital signal, described modulating video signal that described wired power supply output module sends from described coaxial signal line.
Preferably, whether described display apparatus processes device is also for controlling to power to described wired power supply input module, described wired power supply output module by controlling mains switch, wherein, described wired power supply input module comprises the first capacitor, one end of described first capacitor is connected with described signal receiving decoder, the other end of described first capacitor is connected with described coaxial signal line, for transmitting described modulating video signal, described digital signal; And
Described wired power supply input module also comprises the first inductor, and described first inductor one end is connected with feeder ear, and the other end of described first inductor is connected with described coaxial signal line, for transmitting direct current.
Preferably, described wired power supply output module comprises the second capacitor, one end of described second capacitor is connected with described Signal coding modulator, and the other end of described second capacitor is connected with described coaxial signal line, for transmitting described modulating video signal, described digital signal;
And described wired power supply input module also comprises the second inductor, described second inductor one end is connected with receiving end, and the other end of described first inductor is connected with described coaxial signal line, for transmitting direct current, powers to described receiving end.
Preferably, described micro control processing unit is carried out filtering process to described astern signal and is comprised the shake of removing described astern signal and/or be process to the astern signal that pulse-width signal represents.
Vehicle-mounted transmission method provided by the invention, described method comprises:
Obtain digital video signal;
Recompile and carrier modulation are carried out to described digital video signal, to obtain modulating video signal;
Described modulating video signal is transmitted by coaxial signal line;
Described modulating video signal is received from described coaxial signal line;
Demodulation code is carried out to described modulating video signal, to obtain decoded video signal;
The form of described decoded video signal is changed, to obtain the vision signal of preset format; And
Receive the vision signal of described preset format, and the vision signal of described preset format is shown.
Preferably, also comprise:
Obtain astern signal, and the digital signal that filtering process forms stability criterion is carried out to described astern signal;
Described digital signal is transmitted by coaxial signal line;
Described digital signal is received from described coaxial signal line; And
Digital signal according to described stability criterion carries out corresponding control operation.
Preferably, the form of the vision signal of described preset format is mobile Industry Processor Interface form (MIPI), colour gamut form (RGB), Low Voltage Differential Signal form (LVDS).
Preferably, describedly filtering process is carried out to described astern signal comprise the shake of removing described astern signal and/or be process to the astern signal that pulse-width signal represents.
Preferably, the modulation system of described carrier modulation is high definition composite video interface form (HDCVI), coaxial transmission simulation HD video form (AHD), the modulation system that coaxial HD video transmission standard form (HDTVI) and high definition closed-circuit television system form (CCHDTV) adopt.
The power supply that vehicle-mounted transmitting device of the present invention and method achieve high-definition digital video transmission camera module is also multiplexing by 2 signal transmssion lines, further simplify the Power Management Design of camera module, reduce the cost of transmission signal line, astern signal is converted into the digital signal of standard, and be multiplexed in video signal cable and transmit, reduce the intractability of distal displayed equipment, have a wide range of applications scene, vehicle-mounted panoramic video system, by the multiple signal receiving decoder of parallel connection, make middle control display processing device can access the coaxial digital video of multichannel simultaneously, as long as processor is enough powerful, the video record processing of multi-path high-definition digital video can be carried out easily, and camera can Arbitrary distribution at vehicle Anywhere, especially applicable for oversize vehicle, multi-path high-definition video monitoring system, wired function of supplying power further simplify wiring cost.
Accompanying drawing explanation
Fig. 1 is the functional block diagram of the present invention's vehicle-mounted transmitting device one execution mode.
Fig. 2 is the functional block diagram of the present invention's vehicle-mounted transmitting device one better embodiment.
Fig. 3 is the schematic diagram of modulating video signal transmitted waveform figure mono-execution mode of the vehicle-mounted transmitting device of the present invention.
Fig. 4 is the schematic diagram of structure chart one execution mode of wired power supply input module of the vehicle-mounted transmitting device of the present invention.
Fig. 5 is the schematic diagram of structure chart one execution mode of wired power supply output module of the vehicle-mounted transmitting device of the present invention.
Fig. 6 is the flow chart of the present invention's vehicle-mounted transmission method one method execution mode.
Fig. 7 is the flow chart of the present invention's vehicle-mounted transmission method other method execution mode.
Main element symbol description
Embodiment
Consult Fig. 1, Figure 1 shows that the functional block diagram of the present invention's vehicle-mounted transmitting device 10 1 execution mode.Vehicle-mounted transmitting device 1 comprises micro control processing unit 100, camera module 102, Signal coding modulator 104, signal receiving decoder 202, vision signal modular converter 204, display apparatus processes device 206.Micro control processing unit 100 is connected with Signal coding modulator 104, camera module 102 is connected with Signal coding modulator 104, Signal coding modulator 104 is connected with signal receiving decoder 202, signal receiving decoder 202 is connected with vision signal modular converter 204, vision signal modular converter 204 is connected with display apparatus processes device 206, and signal receiving decoder 202 is connected with display apparatus processes device 206.Below each functional module is elaborated.
Micro control processing unit 100 receives reversing automobile signal, software filtering process is carried out to astern signal, form the digital signal of stability criterion, by data communication interface, digital signal is sent to Signal coding modulator 104, micro control processing unit 100 filtering process comprise remove astern signal shake, be PWM(pulse-width modulation to the astern signal of part vehicle) situation of signal processes.Signal coding modulator 104 by digital signal transfers to signal decoding demodulator 202.Signal decoding demodulator 202 is by digital signal transfers to display apparatus processes device 206, and display apparatus processes device 206 carries out corresponding operating according to digital signal.
Digital video signal for generation of digital video signal, and is passed to Signal coding modulator 104 by camera module 102.Signal coding modulator 104, for receiving digital video signal, carries out recompile and carrier modulation to digital video signal, to obtain modulating video signal, and by modulating video signal transmission signal demodulating and decoding device (202).Signal receiving decoder 202 pairs of modulating video signals carry out demodulation code, to obtain demodulated video signal, and by demodulated video signal transmission to vision signal modular converter 204.The form of vision signal modular converter 204 pairs of demodulated video signals is changed, and to obtain the vision signal of preset format, and the vision signal of preset format is passed to display apparatus processes device 206.Display apparatus processes device 206 receives the vision signal of preset format, and the vision signal of preset format is shown.
Consult Fig. 2, Figure 2 shows that the functional block diagram of the present invention's vehicle-mounted transmitting device 10 1 better embodiment.Vehicle-mounted transmitting device 1 comprises backup camera module 10, vehicle backing backsight display module 20.Wherein, backup camera module 10 comprises micro control processing unit 100, camera module 102, Signal coding modulator 104, wired power supply output module 106; Vehicle backing backsight display module 20 comprises wired power supply input module 200, signal receiving decoder 202, vision signal modular converter 204, display apparatus processes device 206, mains switch 208.Micro control processing unit 100 is connected with Signal coding modulator 104, camera module 102 is connected with Signal coding modulator 104, Signal coding modulator 104 is connected with wired power supply output module 106, and wired power supply output module 106 is connected by coaxial signal line with wired power supply input module 200.Wired power supply input module 200 is connected with signal receiving decoder 202, signal receiving decoder 202 is connected with vision signal modular converter 204, vision signal modular converter 204 is connected with display apparatus processes device 206, signal receiving decoder 202 is connected with display apparatus processes device 206, mains switch 208 is connected with wired power supply input module 200, mains switch 208 and display apparatus processes device 206, mains switch 208 is also connected with power input.Micro control processing unit 100 uses STM32F101, and Signal coding modulator 104 uses DH9801, and signal receiving decoder 202 uses DH9910, and vision signal modular converter 204 uses TC358746, and display apparatus processes device 206 uses MT6735/MT8735.Below each functional module is elaborated.
Digital video signal for generation of digital video signal, and is passed to Signal coding modulator 104 by camera module 102, and wherein, camera module 102 can export the digital video signal of multiple format, such as RAW, YUV, BT1120 or BT656.Signal coding modulator 104 is for receiving digital video signal, recompile and carrier modulation are carried out to digital video signal, wherein, multi-carrier modulation scheme adopts the modulation system of class CVBS, such as high definition composite video interface form (HDCVI), coaxial transmission simulation HD video form (AHD), the modulation system that coaxial HD video transmission standard form (HDTVI) and high definition closed-circuit television system form (CCHDTV) adopt, to obtain modulating video signal, and modulating video signal is sent to wired power supply output module 106.Wired power supply output module 106 receives modulating video signal, and modulating video signal is passed to wired power supply input module 200 by coaxial signal line.
Wired power supply input module 200 of vehicle backing backsight display module 20 receives modulating video signal from coaxial signal line, and modulating video signal is passed to signal receiving decoder 202, signal receiving decoder 202 pairs of modulating video signals carry out demodulation code, the signal format that reduction camera module exports, such as YUV, the video of BT1120 or BT656 form, to obtain decoded video signal, and passes to vision signal modular converter 204 by decoded video signal.The form of vision signal modular converter 204 pairs of decoded video signals is changed, convert the pattern of the input that automobile center console display apparatus processes device can mate to, such as move Industry Processor Interface form (MIPI), colour gamut form (RGB), the forms such as Low Voltage Differential Signal form (LVDS), to obtain the vision signal of preset format, and the vision signal of preset format is passed to display apparatus processes device 206.Display apparatus processes device 206 receives the vision signal of preset format, and the vision signal of preset format is shown, the transmission mechanism of video signal transmission mechanism and CVBS is similar, therefore can realize long range propagation equally, when using the coaxial line of 75-3 specification, maximum distance can reach 500 meters, adopt modal coaxial signal line signal transmission, only need 2 lines, compare the holding wire that traditional scheme decreases 26 meters long, reduce cost and wire diameter.
Micro control processing unit 100 receives reversing automobile signal, software filtering process is carried out to astern signal, form the digital signal of stability criterion, by data communication interface, digital signal is sent to Signal coding modulator 104, micro control processing unit 100 filtering process comprise remove astern signal shake, be PWM(pulse-width modulation to the astern signal of part vehicle) situation of signal processes.The data communication interface of micro control processing unit 100 and Signal coding modulator 104 can use conventional I2C, UART, one or several combinations in SPI or RS485, micro control processing unit 100 carries out communication by data communication interface and Signal coding modulator 104, can control and configuration signal coding demodulator 104.Digital signal transfers is given wired power supply output module 106 by Signal coding modulator 104, wired power supply output module 106 by digital data transmission give wired power supply input module 200, wired power supply input module 200 by digital data transmission to signal decoding demodulator 202.Signal decoding demodulator 202 is by digital signal transfers to display apparatus processes device 206, and display apparatus processes device 206 carries out corresponding operating according to digital signal.
The vision signal modulated is sent by coaxial signal line by Signal coding modulator 104, the data simultaneously will received from micro control processing unit 100, by RS485 or RS232 protocol multiplexing to coaxial signal line transmits, astern signal is converted into the digital signal of standard, and be multiplexed in video signal cable and transmit, reduce the intractability of distal displayed equipment.Signal receiving decoder 202 is while going back original video signal, the data of RS485 or RS232 are carried out multiplex transmitting and receiving from coaxial signal line, the transmit-receive position of RS485 or RS232 data, set fixing sequential by Signal coding modulator and signal receiving decoder to realize, with Signal coding modulator for reference, such as moment A is used for sending data, and moment B is used for receiving data.The modulation signal of vision signal and RS485, RS232 data-signal is all AC signal, video modulation signal waveform as shown in Figure 3, therefore can DC power supply be multiplexed on coaxial transmission line, whether display apparatus processes device 206 controls mains switch 208 and controls to wired power supply input module 200, wired power supply output module 106 is powered, concrete by wired power supply output module 106, wired power supply input module 200 realizes transmission DC power supply be multiplexed on coaxial transmission line, below to wired power supply output module 106, wired power supply input module 200 is described in detail.
Consult Fig. 4, Figure 4 shows that the schematic diagram of structure chart one execution mode of wired power supply (PowerOverline) input module of the vehicle-mounted transmitting device of the present invention.Wired power supply input module 200 comprises the first capacitor (C1) 2001, one end of first capacitor (C1) 2001 is connected with signal receiving decoder 202, the other end of the first capacitor is connected with coaxial signal line, for transmitting modulating video signal, digital signal, wired power supply input module 200 also comprises the first inductor (L1) 2002, first inductor (L1) 2002 one end is connected with feeder ear, the other end of the first inductor (L1) 2002 is connected with coaxial signal line, for transmitting direct current.
Consult Fig. 5, Figure 5 shows that the schematic diagram of structure chart one execution mode of wired power supply output module of the vehicle-mounted transmitting device of the present invention.Wired power supply output module 106 comprises the second capacitor (C2) 1061, one end of second capacitor (C2) 1061 is connected with Signal coding modulator 104, the other end of the second capacitor is connected with coaxial signal line, for transmitting modulating video signal, digital signal, wired power supply input module also comprises the second inductor (L2) 1062, second inductor (L2) 1062 one end is connected with receiving end, the other end of the first inductor (L2) 1062 is connected with coaxial signal line, for transmitting direct current, receiving end is powered, receiving end can be camera module 102, or other need the module of power supply.By the parameter of choose reasonable electric capacity C and inductance L, DC power supply can be multiplexed into quality coaxial signal line not affecting video and transfer of data.The supply voltage of wired power supply input module 200, wired power supply output module 106 can according to the requirements set of camera module 102, such as conventional 12V, 5V and 3.3V, the power supply of camera module 102 is multiplexing by 2 signal transmssion lines, further simplify the Power Management Design of camera module 102, reduce the cost of transmission signal line.
Based on same inventive concept, present invention also offers a kind of vehicle-mounted transmission method, the principle of dealing with problems due to the method is similar to the various functions of aforesaid vehicle-mounted transmitting device, therefore, the enforcement of the method, by aforementioned vehicle-mounted transmitting device specific implementation, repeats part and repeats no more.
Consult Fig. 6, Figure 6 shows that the flow chart of the present invention's vehicle-mounted transmission method one method execution mode.
In step S600, obtain digital video signal.
In step S602, recompile and carrier modulation are carried out to digital video signal, to obtain modulating video signal, concrete, to astern signal carry out filtering process comprise remove astern signal shake and/or be process to the astern signal that pulse-width signal represents, the modulation system of carrier modulation adopts high definition composite video interface form (HDCVI), coaxial transmission simulation HD video form (AHD), the modulation system that coaxial HD video transmission standard form (HDTVI) and high definition closed-circuit television system form (CCHDTV) adopt.
In step s 604, modulating video signal is transmitted by coaxial signal line.
In step S606, receive modulating video signal from coaxial signal line.
In step S608, demodulation code is carried out to modulating video signal, to obtain decoded video signal.
In step S610, the form of decoded video signal is changed, to obtain the vision signal of preset format, concrete, the form of the vision signal of preset format is mobile Industry Processor Interface form (MIPI), colour gamut form (RGB), Low Voltage Differential Signal form (LVDS).
In step S612, receive the vision signal of preset format, and the vision signal of preset format is shown.
Consult Fig. 7, Figure 7 shows that the flow chart of the present invention's vehicle-mounted transmission method other method execution mode.
In step S700, obtain astern signal, and filtering process is carried out to astern signal form the digital signal of stability criterion, wherein, filtering process is carried out to astern signal and comprises the shake of removing described astern signal and/or be process to the astern signal that pulse-width signal represents.。
In step S702, receiving digital signals, and digital signal is transmitted by coaxial signal line.
In step S704, from coaxial signal line receiving digital signals.
In step S706, the digital signal according to stability criterion carries out corresponding control operation.
Vehicle-mounted transmitting device of the present invention and method, 720P(resolution 1280*720 can be realized) and 1080P(1920*1280) high-definition digital video transmission display, owing to achieving high-definition digital video transmission, the design not only can be applied to vehicle backing backsight, can also promote for vehicle-mounted multi-path high-definition driving record function, adopt modal coaxial signal line signal transmission, only need 2 lines, compare the holding wire that traditional scheme decreases 26 meters long, reduce cost and wire diameter, the power supply of camera module is also multiplexing by 2 signal transmssion lines, further simplify the Power Management Design of camera module, reduce the cost of transmission signal line, astern signal is converted into the digital signal of standard, and be multiplexed in video signal cable and transmit, reduce the intractability of distal displayed equipment, improve Consumer's Experience, contribute to the large-scale popularization of vehicle-mounted transmitting device.
Above embodiment is only for illustration of the present invention; but not limitation of the present invention, relevant technologies personnel, when not departing from the spirit and scope of invention; can also make a variety of changes and be out of shape, therefore all equivalent technical schemes also belong to protection category of the present invention.
Claims (10)
1. the vehicle-mounted transmitting device of vehicle-mounted transmitting device, is characterized in that, described vehicle-mounted transmitting device comprises:
Camera module, for generation of digital video signal;
Micro control processing unit, for obtaining astern signal, and carries out to described astern signal the digital signal that filtering process forms standard;
Signal coding modulator, for receiving described digital video signal, described digital signal, encodes and carrier modulation to described digital video signal, to obtain modulating video signal;
Signal receiving decoder, for obtaining described modulating video signal, carries out demodulation code to described modulating video signal, to obtain decoded video signal;
Vision signal modular converter, for changing the form of described decoded video signal, to obtain the vision signal of preset format;
And display apparatus processes device, for receiving the vision signal of described preset format, the vision signal of described preset format is shown, and carry out corresponding control operation according to described digital signal.
2. vehicle-mounted transmitting device as claimed in claim 1, is characterized in that, also comprise:
Wired power supply output module, for receiving described digital signal, described modulating video signal, and is transmitted described digital signal, described modulating video signal by coaxial signal line;
Wired power supply input module, for receiving described digital signal, described modulating video signal that described wired power supply output module sends from described coaxial signal line.
3. vehicle-mounted transmitting device as claimed in claim 2, it is characterized in that, described display apparatus processes device is also for controlling mains switch to control whether to power to described wired power supply input module, described wired power supply output module, wherein, described wired power supply input module comprises the first capacitor, one end of described first capacitor is connected with described signal receiving decoder, the other end of described first capacitor is connected with described coaxial signal line, for transmitting described modulating video signal, described digital signal; And described wired power supply input module also comprises the first inductor, described first inductor one end is connected with feeder ear, and the other end of described first inductor is connected with described coaxial signal line, for transmitting direct current.
4. vehicle-mounted transmitting device as claimed in claim 3, it is characterized in that, described wired power supply output module comprises the second capacitor, one end of described second capacitor is connected with described Signal coding modulator, the other end of described second capacitor is connected with described coaxial signal line, for transmitting described modulating video signal, described digital signal;
And described wired power supply input module also comprises the second inductor, described second inductor one end is connected with receiving end, and the other end of described first inductor is connected with described coaxial signal line, for transmitting direct current, powers to described receiving end.
5. vehicle-mounted transmitting device as claimed in claim 4, is characterized in that, described micro control processing unit is carried out filtering process to described astern signal and comprised the shake of removing described astern signal and/or process the astern signal that pulse-width signal represents.
6. a vehicle-mounted transmission method, is characterized in that, described method comprises:
Obtain digital video signal;
Recompile and carrier modulation are carried out to described digital video signal, to obtain modulating video signal;
Described modulating video signal is transmitted by coaxial signal line;
Described modulating video signal is received from described coaxial signal line;
Demodulation code is carried out to described modulating video signal, to obtain decoded video signal;
The form of described decoded video signal is changed, to obtain the vision signal of preset format;
And receive the vision signal of described preset format, and the vision signal of described preset format is shown.
7. vehicle-mounted transmission method as claimed in claim 6, is characterized in that, also comprise:
Obtain astern signal, and the digital signal that filtering process forms stability criterion is carried out to described astern signal;
Described digital signal is transmitted by coaxial signal line;
Described digital signal is received from described coaxial signal line;
And carry out corresponding control operation according to described digital signal.
8. vehicle-mounted transmission method as claimed in claim 6, is characterized in that, the form of the vision signal of described preset format is mobile Industry Processor Interface form (MIPI), colour gamut form (RGB), Low Voltage Differential Signal form (LVDS).
9. vehicle-mounted transmission method as claimed in claim 7, is characterized in that, describedly carries out filtering process to described astern signal and comprises the shake of removing described astern signal and/or process the astern signal that pulse-width signal represents.
10. vehicle-mounted transmission method as claimed in claim 9, it is characterized in that, the modulation system of described carrier modulation is high definition composite video interface form (HDCVI), coaxial transmission simulation HD video form (AHD), the modulation system that coaxial HD video transmission standard form (HDTVI) and high definition closed-circuit television system form (CCHDTV) adopt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610010288.XA CN105578148A (en) | 2016-01-08 | 2016-01-08 | Vehicle-mounted transmission device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610010288.XA CN105578148A (en) | 2016-01-08 | 2016-01-08 | Vehicle-mounted transmission device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105578148A true CN105578148A (en) | 2016-05-11 |
Family
ID=55887749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610010288.XA Pending CN105578148A (en) | 2016-01-08 | 2016-01-08 | Vehicle-mounted transmission device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105578148A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106231389A (en) * | 2016-08-29 | 2016-12-14 | 上海航盛实业有限公司 | A kind of viewing hardware system of vehicle-mounted central control system |
| CN106454224A (en) * | 2016-09-08 | 2017-02-22 | 延锋伟世通电子科技（上海）有限公司 | Vehicle-mounted rear view camera system |
| CN106791486A (en) * | 2016-11-23 | 2017-05-31 | 辉创电子科技(苏州)有限公司 | Vehicular direct-current carrier frequency single line coaxial transmission method |
| CN106910289A (en) * | 2017-04-06 | 2017-06-30 | 张翼洲 | A kind of subscriber line terminal device of low-voltage line travelling expenses control carrier wave kilowatt-hour meter |
| WO2018036232A1 (en) * | 2016-08-26 | 2018-03-01 | 广州路派电子科技有限公司 | Vehicle-mounted front and rear image driving recorder system |
| CN107864320A (en) * | 2017-04-05 | 2018-03-30 | 北京图森未来科技有限公司 | A kind of video frequency transmitter and vehicle carried driving accessory system |
| CN108052472A (en) * | 2017-12-12 | 2018-05-18 | 智车优行科技（北京）有限公司 | A kind of IIC facility communication systems, data writing method and data reading method |
| CN109040663A (en) * | 2018-04-03 | 2018-12-18 | 深圳市麦道微电子技术有限公司 | The capture of the HD video of young mobile inside rear-view mirror, transmission and display technology |
| CN110493542A (en) * | 2019-08-20 | 2019-11-22 | 深圳市瑞联高科通讯有限公司 | It is a kind of can multi-angle over long distances wiring analog-to-digital conversion vehicle-mounted monitoring system |
| CN113329200A (en) * | 2021-06-07 | 2021-08-31 | 广州市奥威亚电子科技有限公司 | Clock synchronization data transmission device based on coaxial cable |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6480224B1 (en) * | 1999-08-27 | 2002-11-12 | International Truck Intellectual Property Company, L.L.C. | Mobile multiplexed slow scan video system |
| CN101102439A (en) * | 2006-07-06 | 2008-01-09 | 温建荣 | Sound accompanying method and device for display system |
| JP2008098956A (en) * | 2006-10-12 | 2008-04-24 | Iden Videotronics:Kk | Video image transmission system, video image transmitting system, video image receiving system, video image transmitting method, and video image receiving method |
| CN201204660Y (en) * | 2008-06-15 | 2009-03-04 | 顾江山 | Twisted-pair line video transmission device |
| WO2011014497A1 (en) * | 2009-07-27 | 2011-02-03 | Magna Electronics Inc. | Vehicular camera with on-board microcontroller |
| CN102595091A (en) * | 2012-03-20 | 2012-07-18 | 深圳市鼎盛威电子有限公司 | Transmission system and transmission method for serial digital interface (SDI) high-definition video signals |
| CN202918413U (en) * | 2012-11-07 | 2013-05-01 | 深圳市优特普科技有限公司 | Signal transmission system based on coaxial cable |
| JP2013093680A (en) * | 2011-10-25 | 2013-05-16 | Sumitomo Electric Ind Ltd | Transmission system, transmission device set and method for laying ip camera |
-
2016
- 2016-01-08 CN CN201610010288.XA patent/CN105578148A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6480224B1 (en) * | 1999-08-27 | 2002-11-12 | International Truck Intellectual Property Company, L.L.C. | Mobile multiplexed slow scan video system |
| CN101102439A (en) * | 2006-07-06 | 2008-01-09 | 温建荣 | Sound accompanying method and device for display system |
| JP2008098956A (en) * | 2006-10-12 | 2008-04-24 | Iden Videotronics:Kk | Video image transmission system, video image transmitting system, video image receiving system, video image transmitting method, and video image receiving method |
| CN201204660Y (en) * | 2008-06-15 | 2009-03-04 | 顾江山 | Twisted-pair line video transmission device |
| WO2011014497A1 (en) * | 2009-07-27 | 2011-02-03 | Magna Electronics Inc. | Vehicular camera with on-board microcontroller |
| JP2013093680A (en) * | 2011-10-25 | 2013-05-16 | Sumitomo Electric Ind Ltd | Transmission system, transmission device set and method for laying ip camera |
| CN102595091A (en) * | 2012-03-20 | 2012-07-18 | 深圳市鼎盛威电子有限公司 | Transmission system and transmission method for serial digital interface (SDI) high-definition video signals |
| CN202918413U (en) * | 2012-11-07 | 2013-05-01 | 深圳市优特普科技有限公司 | Signal transmission system based on coaxial cable |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018036232A1 (en) * | 2016-08-26 | 2018-03-01 | 广州路派电子科技有限公司 | Vehicle-mounted front and rear image driving recorder system |
| CN106231389A (en) * | 2016-08-29 | 2016-12-14 | 上海航盛实业有限公司 | A kind of viewing hardware system of vehicle-mounted central control system |
| CN106454224A (en) * | 2016-09-08 | 2017-02-22 | 延锋伟世通电子科技（上海）有限公司 | Vehicle-mounted rear view camera system |
| CN106791486A (en) * | 2016-11-23 | 2017-05-31 | 辉创电子科技(苏州)有限公司 | Vehicular direct-current carrier frequency single line coaxial transmission method |
| CN107864320A (en) * | 2017-04-05 | 2018-03-30 | 北京图森未来科技有限公司 | A kind of video frequency transmitter and vehicle carried driving accessory system |
| CN107864320B (en) * | 2017-04-05 | 2020-08-21 | 北京图森智途科技有限公司 | Video transmission device and vehicle-mounted driving auxiliary system |
| CN106910289A (en) * | 2017-04-06 | 2017-06-30 | 张翼洲 | A kind of subscriber line terminal device of low-voltage line travelling expenses control carrier wave kilowatt-hour meter |
| CN108052472A (en) * | 2017-12-12 | 2018-05-18 | 智车优行科技（北京）有限公司 | A kind of IIC facility communication systems, data writing method and data reading method |
| CN109040663A (en) * | 2018-04-03 | 2018-12-18 | 深圳市麦道微电子技术有限公司 | The capture of the HD video of young mobile inside rear-view mirror, transmission and display technology |
| CN110493542A (en) * | 2019-08-20 | 2019-11-22 | 深圳市瑞联高科通讯有限公司 | It is a kind of can multi-angle over long distances wiring analog-to-digital conversion vehicle-mounted monitoring system |
| CN113329200A (en) * | 2021-06-07 | 2021-08-31 | 广州市奥威亚电子科技有限公司 | Clock synchronization data transmission device based on coaxial cable |
| CN113329200B (en) * | 2021-06-07 | 2024-03-15 | 广州市奥威亚电子科技有限公司 | Clock synchronous data transmission device based on coaxial cable |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105578148A (en) | Vehicle-mounted transmission device and method | |
| CN105516629A (en) | Display screen and splicing screen | |
| CN205283737U (en) | On -vehicle transmission device | |
| KR101677663B1 (en) | Method and device for implementing analog high-definition image capturing | |
| CN104754275B (en) | A kind of Miniature remote control underwater robot co-cable transmission device and method | |
| CN105721805B (en) | TV SKD device, attachment device, television set and system for TV set | |
| CN209089078U (en) | A kind of embedded six road panorama system towards motorbus | |
| CN108376538A (en) | Connector and display device for display device | |
| CN207665080U (en) | The former vehicle screen of various video input is supported to upgrade box | |
| CN211063698U (en) | Ultra-high definition two-path image divider | |
| CN206136118U (en) | Omnipotent converter | |
| JP2019506034A (en) | TV main board device, TV and TV system | |
| CN205376947U (en) | Novel full signal transmission line | |
| CN208360056U (en) | 360 based on Vehicular intelligent cockpit look around device, Vehicular intelligent cockpit and vehicle | |
| JP3210536U (en) | Supervisory control system that transmits mixed signals of three types over a single coaxial cable | |
| CN206490756U (en) | A kind of omnipotent network cable transmission device | |
| CN100593942C (en) | Method and device for converting multiple image signal | |
| CN104268116A (en) | Communication mode for vehicle-mounted entertainment host and split type touch screen | |
| CN201479309U (en) | Vehicle-mounted image processing device | |
| KR200187207Y1 (en) | Stereoscopic image controller and wireless lcd shutter goggles for pc | |
| CN104270554A (en) | Camera for high-definition CMOS endoscope | |
| CN218513723U (en) | Vehicle-mounted Type-C module and vehicle | |
| CN205545642U (en) | Display screen and spliced screen | |
| CN219145444U (en) | CXP changes HDMI signal conversion device | |
| TW201215145A (en) | Surveillance system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160511 |