CN108132632A - A kind of vehicle-mounted active mutual wake-up circuit - Google Patents
A kind of vehicle-mounted active mutual wake-up circuit Download PDFInfo
- Publication number
- CN108132632A CN108132632A CN201810099712.1A CN201810099712A CN108132632A CN 108132632 A CN108132632 A CN 108132632A CN 201810099712 A CN201810099712 A CN 201810099712A CN 108132632 A CN108132632 A CN 108132632A
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- CN
- China
- Prior art keywords
- module
- wake
- host
- circuit
- screen
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- 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.)
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Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
-
- 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
-
- 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
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25286—Switch on power, awake controlled machine from standby if command signal
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
Abstract
A kind of vehicle-mounted active mutual wake-up circuit, including host wake-up circuit and screen wake-up circuit, the host wake-up circuit includes host wake-up request module, display MCU control module, display control module, display module, screen feedback module, Video decoding module and video data flow module, and the screen wake-up circuit includes screen wake request module, host MCU control module, host CPU control module, display module, host feedback module, control decoder module and control Streams Module.The present invention is suitable in the case of automotive electronics Vehicular screen and host separation, using the scheme of low cost, actively can mutually be waken up, while reduce the dark current of entertainment systems, reduce system power dissipation.
Description
Technical field
The present invention relates to electricity field more particularly to automotive electronics entertainment devices, particularly a kind of vehicle-mounted active mutual
Wake-up circuit.
Background technology
Existing automotive electronics entertainment systems wake-up is mainly realized by two methods, first, passing through CAN transceiver controllers
Realize data interaction, vehicle body sends the MCU of CAN wake instruction automotive electronics entertainment systems, and MCU work wakes up entertainment systems, by
A direct power supply is needed in CAN transceiver and MCU, the increase of quiescent current is caused, so as to cause the increase of power consumption.Second is that pass through
Either other rigid lines are waken up level are dragged down outside ACC or other rigid lines ACC, the MCU interruption input signal detection signal
It triggers and interrupts after dragging down, wake up MCU, MCU work wakes up entertainment systems, and this method is also required to a direct power supply, causes dark current
Increase.
Also there are another drawbacks for both the above method, are all that after needing first to wake up entertainment systems, could wake up screen
Curtain, it is impossible to first wake up screen, then wake up entertainment systems.
Invention content
The purpose of the present invention is to provide a kind of vehicle-mounted active mutual wake-up circuit, this vehicle-mounted active phases
Mutual wake-up circuit, which will solve automotive electronics entertainment systems in the prior art, to be needed to maintain always to power, wakes up that system power dissipation is more, gives pleasure to
Music system dark current is big, cannot first wake up the technical issues of screen.
This vehicle-mounted active mutual wake-up circuit of the present invention, including host wake-up circuit and screen wake-up circuit, institute
The host wake-up circuit stated includes host wake-up request module, display MCU control module, display control module, display module, screen
Curtain feedback module, Video decoding module and video data flow module, the screen wake-up circuit include screen wake request mould
Block, host MCU control module, host CPU control module, display module, host feedback module, control decoder module and control number
According to flow module, wherein, the output terminal of the host wake-up request module in the host wake-up circuit is by showing that MCU controls mould
Block, display control module are connected with the first input end of display module, and another output terminal of the display MCU control module leads to
It crosses screen feedback module and the input terminal of host wake-up request module is connected to form backfeed loop, the video data flow module
Output terminal the second input terminal of display module is connected by Video decoding module, the screen in the screen wake-up circuit is called out
The output terminal for request module of waking up passes through host MCU control module, host CPU control module and the first input end phase of display module
Even, the input that another output terminal of the host MCU control module passes through host feedback module and screen wake request module
End is connected to form backfeed loop, and the output terminal of the control Streams Module is by controlling the of decoder module and display module
Two input terminals are connected.
Further, the host wake-up request module of the host wake-up circuit includes host wake-up request signal source, video counts
According to stream signal source, the first triode, the second triode, the first diode, the second diode, third diode, the first coupling electricity
Appearance, the second coupled capacitor, third coupled capacitor and BATT signal sources, the host wake-up request signal source pass through the second triode
Connect the first triode, the BATT signal sources by after the first triode ON using the first diode of clamp circuit,
With showing that the input terminal of MCU control module is connected, the BATT signal sources are coupled two diodes by the first triode and second
Capacity earth, the video data stream signal source is connected by the first coupled capacitor with the input terminal of Video decoding module, described
Video data stream signal source is grounded by third diode, is grounded by third coupled capacitor respectively.
Further, the screen wake request module of the screen wake-up circuit includes screen wake request signal source, control
Traffic spike source processed, third transistor, the 4th triode, the 4th diode, the 5th diode, the 6th diode, the 4th coupling
It closes capacitance, the 5th coupled capacitor, the 6th coupled capacitor and BATT signal sources, the screen wake request signal source and passes through the four or three
Pole pipe connect third transistor, the BATT signal sources be connected by third transistor after using the four or two pole of clamp circuit
Pipe, the 5th diode are connected with the input terminal of host MCU control modules, and the BATT signal sources pass through third transistor and the
Five coupled capacitors are grounded, and the control traffic spike source passes through the 4th coupled capacitor and the input terminal phase for controlling decoder module
Even, the control traffic spike source is grounded by the 6th diode, is grounded by the 6th coupled capacitor respectively.
The present invention compares with prior art, and effect is positive and apparent.It is vehicle-mounted that the present invention is suitable for automotive electronics
In the case of screen and host separation, using the scheme of low cost, actively can mutually it be waken up, while reduce entertainment systems
Dark current reduces system power dissipation.In the case where not increasing host and Vehicular screen power consumption and harness, by means of display
Host can be realized in LVDS harness and screen is mutually waken up, while does not influence the video data stream between host and screen again
With the transmission and display of control data flow.
Description of the drawings
Fig. 1 is that the host wake-up in the host wake-up transmission circuit of the vehicle-mounted active mutual wake-up circuit of invention asks modulus
The circuit connection diagram of block.
Fig. 2 is that the screen of the vehicle-mounted active mutual wake-up circuit of the present invention wakes up the screen wake request in receiving circuit
The circuit connection diagram of module.
Fig. 3 is the module connection signal of the host wake-up transmission circuit of the vehicle-mounted active mutual wake-up circuit of the present invention
Figure.
Fig. 4 is that the screen of the vehicle-mounted active mutual wake-up circuit of the present invention wakes up the module connection signal of receiving circuit
Figure.
Specific embodiment
Embodiment 1:
As shown in Figure 1, this vehicle-mounted active mutual wake-up circuit of the present invention, is called out including host wake-up transmission circuit and screen
Awake receiving circuit, screen wake up transmission circuit and host wake-up receiving circuit.When host intends to wake up screen, host, which is sent out, calls out
Awake request signal WAKE_SOURCE_CMD, the second triode Q2 conducting, the first triode Q1 conductings, BATT signals are led by Q1
By clamp circuit the first diode D1 and the second diode D2 after logical, WAKE_LCD_REQ signals, WAKE_LCD_REQ are generated
Signal inputs to screen MCU control module, and screen MCU, which is received, to be waken up output screen after interrupt signal WAKE_LCD_REQ and show
Show signal, so as to wake up screen.
As shown in Fig. 2, when screen intends to wake up host, screen sends out wake request signal WAKE_LCD_CMD, the 4th
Triode Q4 is connected, third transistor Q3 conductings, BATT signals be connected by Q3 after by the 4th diode D4 of clamp circuit and
5th diode D5, generates WAKE_SOURCE_REQ signals, and WAKE_SOURCE_REQ signals input to host MCU control moulds
Block, host MCU is waken up output host CPU working signal after receiving interrupt signal WAKE_SOURCE_REQ, so as to wake up master
Machine.
After host wake-up screen, host sends video data stream signal LVDS_SOURCE, by the first coupled capacitor C1
Video processing module of the LVDS_OUT signals to screen, video processing module decoding LVDS_ are exported after carrying out DC Balance Treatments
Output is carried out after SOURCE video data stream signals to show.
After screen wake-up master, screen send control traffic spike LVDS_LCD, by the 4th coupled capacitor C4 into
Control decoder module of the LVDS_IN signals to host, control decoder module decoding LVDS_LCD controls are exported after row DC Balance Treatments
Control signal processing is carried out after traffic spike processed.
As shown in figure 3, host wake-up request module, which sends out wake request signal, gives display MCU control module, display MCU controls
The molding block control display control module output required signal of display module, waits for vision signal input.Screen feedback module
The status information feedback for showing MCU control module is reported to host wake-up request module, whether confirms screen side working condition
Normally.Streams Module exports video data stream signal to Video decoding module, and Video decoding module decodes video data stream
Signal is exported to be shown to display module.
As shown in figure 4, screen wake request module, which sends out wake request signal, gives host MCU control module, display MCU controls
The molding block control display control module output required signal of host CPU control module.Host feedback module controls host MCU
The status information feedback of molding block is reported to screen wake request module, confirms whether host computer side working condition is normal.Control number
Video data stream signal is exported according to flow module and gives control decoder module, and control decoder module decodes control traffic spike output
It is shown to display module.
The present invention is suitable in the case of automotive electronics Vehicular screen and host separation, using the scheme of low cost, Ke Yizhu
It is dynamic mutually to be waken up, while reduce the dark current of entertainment systems, reduce system power dissipation.Do not increasing host and Vehicular screen work(
In the case of consumption and harness, host and screen can be realized by means of the LVDS harness of display and mutually waken up, while again
The transmission and display of the video data stream and control data flow between host and screen are not influenced.
Claims (3)
1. a kind of vehicle-mounted active mutual wake-up circuit, including host wake-up circuit and screen wake-up circuit, the host is called out
Circuit of waking up includes host wake-up request module, display MCU control module, display control module, display module, screen feedback mould
Block, Video decoding module and video data flow module, the screen wake-up circuit include screen wake request module, host
MCU control module, host CPU control module, display module, host feedback module, control decoder module and control data flow mould
Block, it is characterised in that：The output terminal of host wake-up request module in the host wake-up circuit is by showing that MCU controls mould
Block, display control module are connected with the first input end of display module, and another output terminal of the display MCU control module leads to
It crosses screen feedback module and the input terminal of host wake-up request module is connected to form backfeed loop, the video data flow module
Output terminal the second input terminal of display module is connected by Video decoding module, the screen in the screen wake-up circuit is called out
The output terminal for request module of waking up passes through host MCU control module, host CPU control module and the first input end phase of display module
Even, the input that another output terminal of the host MCU control module passes through host feedback module and screen wake request module
End is connected to form backfeed loop, and the output terminal of the control Streams Module is by controlling the of decoder module and display module
Two input terminals are connected.
2. vehicle-mounted active mutual wake-up circuit as described in claim 1, it is characterised in that：The master of the host wake-up circuit
Machine wake request module include host wake-up request signal source, video data stream signal source, the first triode, the second triode,
First diode, the second diode, third diode, the first coupled capacitor, the second coupled capacitor, third coupled capacitor and BATT
Signal source, the host wake-up request signal source connect the first triode by the second triode, and the BATT signal sources pass through
Using the first diode of clamp circuit, the second diode and the input terminal of display MCU control module after first triode ON
It is connected, the BATT signal sources are grounded by the first triode and the second coupled capacitor, and the video data stream signal source passes through
First coupled capacitor is connected with the input terminal of Video decoding module, and the video data stream signal source passes through third diode respectively
Ground connection is grounded by third coupled capacitor.
3. vehicle-mounted active mutual wake-up circuit as described in claim 1, it is characterised in that：The screen of the screen wake-up circuit
Curtain wake request module include screen wake request signal source, control traffic spike source, third transistor, the 4th triode,
4th diode, the 5th diode, the 6th diode, the 4th coupled capacitor, the 5th coupled capacitor, the 6th coupled capacitor and BATT
Signal source, the screen wake request signal source connect third transistor by the 4th triode, and the BATT signal sources pass through
Using the 4th diode of clamp circuit, the 5th diode and the input terminal of host MCU control modules after third transistor conducting
It is connected, the BATT signal sources are grounded by third transistor and the 5th coupled capacitor, and the control traffic spike source passes through
For 4th coupled capacitor with the input terminal of decoder module is controlled to be connected, the control traffic spike source passes through the 6th diode respectively
Ground connection is grounded by the 6th coupled capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810099712.1A CN108132632A (en) | 2018-02-01 | 2018-02-01 | A kind of vehicle-mounted active mutual wake-up circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810099712.1A CN108132632A (en) | 2018-02-01 | 2018-02-01 | A kind of vehicle-mounted active mutual wake-up circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108132632A true CN108132632A (en) | 2018-06-08 |
Family
ID=62430100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810099712.1A Withdrawn CN108132632A (en) | 2018-02-01 | 2018-02-01 | A kind of vehicle-mounted active mutual wake-up circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108132632A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109166546A (en) * | 2018-09-30 | 2019-01-08 | 广州小鹏汽车科技有限公司 | A kind of display screen circuit and the middle control screen system including display screen circuit |
| CN115202602A (en) * | 2022-09-14 | 2022-10-18 | 湖北芯擎科技有限公司 | Display screen wake-up circuit |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104477111A (en) * | 2014-11-28 | 2015-04-01 | 深圳市航盛电子股份有限公司 | Automobile main controller awakening system and automobile main controller awakening method as well as automobile |
| CN106347242A (en) * | 2016-09-30 | 2017-01-25 | 惠州市德赛西威汽车电子股份有限公司 | Method for wakening automobile separation entertainment system and device thereof |
| CN206820830U (en) * | 2017-05-26 | 2017-12-29 | 长春精钰电子科技股份有限公司 | A kind of mounted remote wake-up circuit |
| CN207851565U (en) * | 2018-02-01 | 2018-09-11 | 延锋伟世通电子科技（上海）有限公司 | Vehicle-mounted active mutual wake-up circuit |
-
2018
- 2018-02-01 CN CN201810099712.1A patent/CN108132632A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104477111A (en) * | 2014-11-28 | 2015-04-01 | 深圳市航盛电子股份有限公司 | Automobile main controller awakening system and automobile main controller awakening method as well as automobile |
| CN106347242A (en) * | 2016-09-30 | 2017-01-25 | 惠州市德赛西威汽车电子股份有限公司 | Method for wakening automobile separation entertainment system and device thereof |
| CN206820830U (en) * | 2017-05-26 | 2017-12-29 | 长春精钰电子科技股份有限公司 | A kind of mounted remote wake-up circuit |
| CN207851565U (en) * | 2018-02-01 | 2018-09-11 | 延锋伟世通电子科技（上海）有限公司 | Vehicle-mounted active mutual wake-up circuit |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109166546A (en) * | 2018-09-30 | 2019-01-08 | 广州小鹏汽车科技有限公司 | A kind of display screen circuit and the middle control screen system including display screen circuit |
| CN115202602A (en) * | 2022-09-14 | 2022-10-18 | 湖北芯擎科技有限公司 | Display screen wake-up circuit |
| CN115202602B (en) * | 2022-09-14 | 2023-12-15 | 湖北芯擎科技有限公司 | Display screen wake-up circuit |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180608 |
|
| WW01 | Invention patent application withdrawn after publication |