CN109842773A - A kind of vehicle camera system and the vehicle with it - Google Patents
A kind of vehicle camera system and the vehicle with it Download PDFInfo
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- CN109842773A CN109842773A CN201711189865.7A CN201711189865A CN109842773A CN 109842773 A CN109842773 A CN 109842773A CN 201711189865 A CN201711189865 A CN 201711189865A CN 109842773 A CN109842773 A CN 109842773A
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Abstract
The present invention provides a kind of vehicle camera system and with its vehicle, comprising: camera, the camera is for obtaining image；Display, the display are used to show the image that camera obtains；Encrypting module, the encrypting module are used to issue coded signal to display control module；Display control module, the display control module is for controlling display, and presetting passable signal in the display control module, display control module receiving enciphered signals are compared with passable signal, if it matches, control display shows image.A kind of vehicle camera system of the invention and the vehicle with it, it is not mixed and anti-fake by connector and PIN definition realization, it is realized by specific coded signal, is not easy to crack, reequip and forge.
Description
Technical field
The invention belongs to installed video technical field more particularly to a kind of vehicle camera system and with its vehicle.
Background technique
With application of the modern electronic technology in Vehicular system, it is auxiliary instead of conventional radar to visualize vehicle assisted system
The image of auxiliary system, acquisition avoids the generation of blind area, more intuitive and practical.
Vehicle camera system becomes standard configuration substantially in the vehicle of middle and high end at present, and vehicle camera system includes camera
And display screen.The vehicle camera of different automobiles is substantially all using identical video transmission manner come transmission video signal, this is just
It is likely to occur mixed and personation, the use of the vehicle-mounted camera copied of the vehicle-mounted camera of different automobile types on automobile.It is bad
The vehicle-mounted camera of matter may damage automobile circuit, or even endanger traffic safety, so depot needs to avoid difference
The random of vehicle-mounted camera is used with, is identified fake and forged vehicle-mounted camera, is ensured the Quality Safety of automobile.Depot is mainly at present
It selects different vehicle-mounted camera connectors to define with different PIN and avoids the mixed of different automobile types vehicle-mounted camera.
Although different connector and different PIN definition is selected to may be implemented simply to protect, user can be with
It is easily defined by replacement connector with PIN and realizes that repacking is mixed, vehicle-mounted camera production firm in the market also holds very much
Easily copy.
Summary of the invention
The present invention is in order to solve the above technical problems, provide a kind of vehicle camera system and the vehicle with it.
The present invention provides a kind of vehicle camera system characterized by comprising
Camera, the camera is for obtaining image；
Display, the display are used to show the image that camera obtains；
Encrypting module, the encrypting module are used to issue coded signal to display control module；
Display control module, the display control module are presetting in the display control module to lead to for controlling display
The signal crossed, display control module receiving enciphered signals are compared with passable signal, if it matches, control display display figure
Picture.
Further, the encrypting module is wave generator circuit, and the wave generator circuit sends coded signal.
Further, the coded signal is binary-coded square-wave signal, and square-wave signal is 11 bits, packet
Include 1 start bit, 8 data bit and 2 stop positions.
Further, the wave generator circuit includes:
The power port of MCU, the MCU are connect with voltage source, and the I/O mouth of MCU is connected by first resistor and the base stage of triode
It connects；
Triode, the emitter ground connection of the triode, the base stage of triode connect with first resistor, the collector of triode and
Second resistance is connected with 3rd resistor；
First resistor, one end of the first resistor are connected with the base stage of triode, and the other end is connected with the I/O of MCU mouth；
Second resistance, one end of the second resistance are connected with the collector of triode, another termination voltage source；
3rd resistor, one end of the 3rd resistor are connected with the collector of triode, and the other end exports coded signal to display
Control module.
Further, the camera includes:
Imaging sensor, the optical imagery of shooting is converted into electronic signal by described image sensor, and is transmitted to display；
Electric pressure converter, the electric pressure converter are connected with external voltage source, and electric pressure converter is imaging sensor and encryption mould
Block power supply.
Further, the power port of the MCU is connected with electric pressure converter.
Further, the display control module receiving enciphered signals such as mismatch compared with passable signal, control
Display does not show image.
The present invention also provides a kind of vehicles, including vehicle camera system described in any of the above embodiments.
A kind of vehicle camera system of the invention and the vehicle with it are realized by connector and PIN definition
It is mixed and anti-fake, but realized by specific coded signal, it is not easy to crack, reequip and forge.
Detailed description of the invention
Fig. 1 is a kind of overall structure diagram for vehicle camera system that the embodiment of the present invention one provides.
Fig. 2 is a kind of local circuit schematic diagram for vehicle camera system that the embodiment of the present invention one provides.
Fig. 3 is a kind of square-wave signal form schematic diagram for vehicle camera system that the embodiment of the present invention one provides.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings.Below with reference to
The embodiment of attached drawing description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
As shown in Figure 1, the embodiment of the present invention one provides a kind of vehicle camera system characterized by comprising camera
10, the camera 10 is for obtaining image；Display 40, the display 40 are used to show the image that camera obtains；Add
Close module 20, the encrypting module 20 are used to issue coded signal to display control module 30；Display control module 30, it is described aobvious
Show control module 30 for controlling display 40, presetting passable signal in the display control module 30, display control
30 receiving enciphered signals of module are compared with passable signal, if it matches, control display 40 shows image.The display control
30 receiving enciphered signals of module such as mismatch compared with passable signal, and control display 40 does not show image.
The embodiment of the present invention one provides a kind of vehicle camera system, as shown in Figure 1, the camera includes: that image passes
Sensor, the optical imagery of shooting is converted into electronic signal by described image sensor, and is transmitted to display；Electric pressure converter,
The electric pressure converter is connected with external voltage source, and electric pressure converter is that imaging sensor and encrypting module are powered.
As shown in Fig. 2, being a kind of local circuit schematic diagram for vehicle camera system that the embodiment of the present invention one provides, take the photograph
As first 10 and the circuit diagram of encrypting module 20.The encrypting module 20 is wave generator circuit, the wave generator circuit
Send coded signal.The wave generator circuit includes: MCU, and the power port of the MCU is connect with voltage source, further,
The power port of the MCU is connected with electric pressure converter, and the I/O mouth of MCU is connected by first resistor and the base stage of triode；Three
Pole pipe, the emitter ground connection of the triode, the base stage of triode are connect with first resistor, the collector of triode and the second electricity
Resistance is connected with 3rd resistor；First resistor, one end of the first resistor are connected with the base stage of triode, the other end and MCU's
I/O mouthfuls are connected；Second resistance, one end of the second resistance are connected with the collector of triode, another termination voltage source；Third
Resistance, one end of the 3rd resistor are connected with the collector of triode, and the other end exports coded signal to display control module.
As shown in figure 3, the embodiment of the present invention one provides a kind of vehicle camera system, the coded signal is that binary system is compiled
The square-wave signal of code, square-wave signal is 11 bits, including 1 start bit, 8 data bit, 2 stop positions.Described 8
Data bit is made of binary number 0 and 1, high level 1, low level 0, shares 28=256 kinds of password combinations.In embodiment one,
A refers to start bit, is 1 logic electronics " 1 ", and B refers to 8 data bit, is by the molecular binary coded signal of height electricity
" 01011010 ", C refers to stop position, is 2 logic electronics " 11 ", operating voltage 3.3V.
The embodiment of the present invention one provides a kind of vehicle camera system, and electric pressure converter DC-DC connection external voltage source will
The automobile batteries 12V voltage of input is converted into 3.3V voltage, and output end is separately connected imaging sensor SENSOR and MCU, to figure
As sensor SENSOR and MCU provide 3.3V power supply.Imaging sensor SENSOR shoots reverse image, video signal output mouth
Display is connected, is exported by CVBS signal to display and is shown.
The embodiment of the present invention one also provides a kind of vehicle, including vehicle camera system described in any of the above embodiments.
In the present invention, forming binary-coded square-wave signal can be by the different frequency of MCU software set and close
The frequency and password of code, only encrypting module output all match with the setting of display control module and could unlock, the more matchmakers of automobile
Body display screen just carries out the display of reversing image, does not otherwise show, backup camera is not available.
A kind of vehicle camera system of the invention and the vehicle with it are realized by connector and PIN definition
It is mixed and anti-fake, but realized by specific coded signal, it is not easy to crack, reequip and forge.User cannot simply lead to
It is mixed with PIN definition realization to cross replacement connector, backup camera production firm is also difficult the reversing camera of copying and forging genuine
Head has ensured the Quality Safety of automobile, maintains the interests of automobile vendor.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.In addition, limit
There is the feature of " first ", " second " to can explicitly or implicitly include one or more of the features surely.Of the invention
In description, unless otherwise indicated, the meaning of " plurality " is two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means specific features described in conjunction with this embodiment or example, knot
Structure, material or feature are included at least one embodiment or example of the invention.In the present specification, to above-mentioned term
Schematic representation may not refer to the same embodiment or example.Moreover, specific features, structure, material or the spy of description
Point can be combined in any suitable manner in any one or more of the embodiments or examples.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: not
A variety of change, modification, replacement and modification can be carried out to these embodiments in the case where being detached from the principle of the present invention and objective, this
The range of invention is defined by the claims and their equivalents.
Claims (8)
1. a kind of vehicle camera system characterized by comprising
Camera, the camera is for obtaining image；
Display, the display are used to show the image that camera obtains；
Encrypting module, the encrypting module are used to issue coded signal to display control module；
Display control module, the display control module are presetting in the display control module to lead to for controlling display
The signal crossed, display control module receiving enciphered signals are compared with passable signal, if it matches, control display display figure
Picture.
2. a kind of vehicle camera system as described in claim 1, which is characterized in that the encrypting module is that electricity occurs for waveform
Road, the wave generator circuit send coded signal.
3. a kind of vehicle camera system as claimed in claim 2, which is characterized in that the coded signal is binary coding
Square-wave signal, square-wave signal is 11 bits, including 1 start bit, 8 data bit and 2 stop positions.
4. vehicle camera system as claimed in claim 2, which is characterized in that the wave generator circuit includes:
The power port of MCU, the MCU are connect with voltage source, and the I/O mouth of MCU is connected by first resistor and the base stage of triode
It connects；
Triode, the emitter ground connection of the triode, the base stage of triode connect with first resistor, the collector of triode and
Second resistance is connected with 3rd resistor；
First resistor, one end of the first resistor are connected with the base stage of triode, and the other end is connected with the I/O of MCU mouth；
Second resistance, one end of the second resistance are connected with the collector of triode, another termination voltage source；
3rd resistor, one end of the 3rd resistor are connected with the collector of triode, and the other end exports coded signal to display
Control module.
5. a kind of vehicle camera system as claimed in claim 4, which is characterized in that the camera includes:
Imaging sensor, the optical imagery of shooting is converted into electronic signal by described image sensor, and is transmitted to display；
Electric pressure converter, the electric pressure converter are connected with external voltage source, and electric pressure converter is imaging sensor and encryption mould
Block power supply.
6. a kind of vehicle camera system as claimed in claim 5, which is characterized in that the power port and voltage of the MCU
Converter is connected.
7. a kind of vehicle camera system as described in claim 1, which is characterized in that the display control module receives encryption
Signal such as mismatches compared with passable signal, and control display does not show image.
8. a kind of vehicle, which is characterized in that including the described in any item vehicle camera systems of claim 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711189865.7A CN109842773A (en) | 2017-11-24 | 2017-11-24 | A kind of vehicle camera system and the vehicle with it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711189865.7A CN109842773A (en) | 2017-11-24 | 2017-11-24 | A kind of vehicle camera system and the vehicle with it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109842773A true CN109842773A (en) | 2019-06-04 |
Family
ID=66876150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711189865.7A Pending CN109842773A (en) | 2017-11-24 | 2017-11-24 | A kind of vehicle camera system and the vehicle with it |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102339540A (en) * | 2011-09-23 | 2012-02-01 | 无锡艾德里安科技有限公司 | Chaotic secure communication experiment demonstrating device |
| CN203675224U (en) * | 2013-12-26 | 2014-06-25 | Tcl康钛汽车信息服务（深圳）有限公司 | Encryption processing device for wireless reversing video |
| WO2016125974A1 (en) * | 2015-02-05 | 2016-08-11 | 주식회사 씨앤에스아이 | Integrated image control system, and image transmitting and sharing method using same |
| CN107121603A (en) * | 2017-04-12 | 2017-09-01 | 亿信标准认证集团有限公司 | For Digital Automobile combination instrument quality detecting system |
-
2017
- 2017-11-24 CN CN201711189865.7A patent/CN109842773A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102339540A (en) * | 2011-09-23 | 2012-02-01 | 无锡艾德里安科技有限公司 | Chaotic secure communication experiment demonstrating device |
| CN203675224U (en) * | 2013-12-26 | 2014-06-25 | Tcl康钛汽车信息服务（深圳）有限公司 | Encryption processing device for wireless reversing video |
| WO2016125974A1 (en) * | 2015-02-05 | 2016-08-11 | 주식회사 씨앤에스아이 | Integrated image control system, and image transmitting and sharing method using same |
| CN107121603A (en) * | 2017-04-12 | 2017-09-01 | 亿信标准认证集团有限公司 | For Digital Automobile combination instrument quality detecting system |
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20191220 Address after: 518119 1 Yanan Road, Kwai Chung street, Dapeng New District, Shenzhen, Guangdong Applicant after: Shenzhen BYD Microelectronics Co., Ltd. Address before: BYD 518118 Shenzhen Road, Guangdong province Pingshan New District No. 3009 Applicant before: Biyadi Co., Ltd. |
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Address after: 518119 1 Yanan Road, Kwai Chung street, Dapeng New District, Shenzhen, Guangdong Applicant after: BYD Semiconductor Co.,Ltd. Address before: 518119 1 Yanan Road, Kwai Chung street, Dapeng New District, Shenzhen, Guangdong Applicant before: SHENZHEN BYD MICROELECTRONICS Co.,Ltd. |
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Address after: 518119 No.1 Yan'an Road, Kuiyong street, Dapeng New District, Shenzhen City, Guangdong Province Applicant after: BYD Semiconductor Co.,Ltd. Address before: 518119 No.1 Yan'an Road, Kuiyong street, Dapeng New District, Shenzhen City, Guangdong Province Applicant before: BYD Semiconductor Co.,Ltd. |
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| WD01 | Invention patent application deemed withdrawn after publication | ||
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Application publication date: 20190604 |