CN105438094A - Method and system for controlling startup and shutdown of vehicle-mounted HUD (Head Up Display) - Google Patents
Method and system for controlling startup and shutdown of vehicle-mounted HUD (Head Up Display) Download PDFInfo
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- CN105438094A CN105438094A CN201510780496.3A CN201510780496A CN105438094A CN 105438094 A CN105438094 A CN 105438094A CN 201510780496 A CN201510780496 A CN 201510780496A CN 105438094 A CN105438094 A CN 105438094A
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- vehicle
- hud
- mounted hud
- output voltage
- microprocessor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
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- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Selective Calling Equipment (AREA)
Abstract
The invention discloses a method for controlling the startup and shutdown of a vehicle-mounted HUD (Head Up Display), comprising the following steps that: a comparison detection circuit arranged in the vehicle-mounted HUD carries out real-time detection on the output voltage of a vehicle battery; the comparison detection circuit transmits the comparative result of the real-time output voltage and rated output voltage of the vehicle battery to a microprocessor; and the microprocessor automatically starts the startup and shutdown of the vehicle-mounted HUD according to the comparative result, comprising the following processes: when the real-time output voltage of the vehicle battery is less than the rated output voltage, judging that the vehicle is started and automatically starting the vehicle-mounted HUD to work, and when the real-time output voltage of the vehicle battery is equal to the rated output voltage, keeping the current state of the vehicle-mounted HUD. The invention also provides a system for controlling the startup and shutdown of the vehicle-mounted HUD. According to the invention, accurate HUD self-starting can be realized, the standby current of the HUD can be reduced, and the convenience and intelligence for controlling the startup and shutdown of the vehicle-mounted HUD can be improved.
Description
Technical field
The present invention relates to technical field of automotive electronics, particularly relate to a kind of control method and system of vehicle-mounted HUD switching on and shutting down.
Background technology
In the current rear dress HUD (HeadUpDisplay, head-up display) powered by OBD (On-BoardDiagnostic, onboard diagnostic system) interface, its power supply is directly from automotive battery.After automobile flameout, if continued from the power taking of OBD interface, automotive battery overdischarge will be made, cause automobile not start.Prior art increases a source switch usually on HUD, when user needs manually to start shooting when using HUD to carry out information displaying, does not need manually to shut down when using HUD.In addition, existing part HUD can also realize the automatic open function of HUD by automobile vibration (acceleration pick-up) during detection automobile starting.
When current after market needs start by the HUD that OBD powers, great majority stretch out one's hand by user the power key pressed on HUD main frame over to realize.Because HUD is generally arranged on (namely near back mirror) above gauge panel or above chaufeur head, distance chaufeur is comparatively far away, hand to extend through depresses button and carries out starting shooting and just seem extremely inconvenient; And use acceleration pick-up the standby current of HUD can be made higher in the mode realizing vehicle-mounted HUD Auto Power On, and if be subject to after automobile flameout vibrating unexpectedly causing HUD false wake-up.
Summary of the invention
Technical matters to be solved by this invention is, provides a kind of control technology scheme of vehicle-mounted HUD switching on and shutting down, automatically wakes vehicle-mounted HUD up and carries out work, and reduce standby current and the power consumption of vehicle-mounted HUD when automobile starting.
For solving above technical matters, on the one hand, the embodiment of the present invention provides a kind of control method of vehicle-mounted HUD switching on and shutting down, comprising:
The output voltage of automobile batteries is detected in real time by the comparison testing circuit be built in vehicle-mounted HUD;
Describedly compare the wake-up signal end that the comparative result of the real-time output voltage of automobile batteries and the rated output voltage of automobile batteries is transferred to the microprocessor be built in vehicle-mounted HUD by testing circuit;
Described microprocessor starts the switching on and shutting down of vehicle-mounted HUD automatically according to described comparative result, comprising: judge automobile starting when the real-time output voltage of automobile batteries is less than described rated output voltage, automatically starts vehicle-mounted HUD and carries out start work; When the real-time output voltage of automobile batteries equals described rated output voltage, keep the current state of vehicle-mounted HUD.
Further, described vehicle-mounted HUD also comprises infrared receiving circuit, then the control method of described vehicle-mounted HUD switching on and shutting down also comprises:
By external Infrared remote controller to described infrared receiving circuit sending controling instruction; Described control command is transferred to wake-up signal end and the infrared receiver end of described microprocessor by described infrared receiving circuit; Described infrared receiver end comprises infrared signal and catches passage or infrared signal decoding channels; Described microprocessor controls start or the shutdown of vehicle-mounted HUD according to described control command.
In the attainable mode of one, described microprocessor controls start or the shutdown of vehicle-mounted HUD according to described control command, specifically comprises:
Described microprocessor after described wake-up signal termination receives described control command, then controls vehicle-mounted HUD and enters accurate awakening mode;
Whether control command described in described microprocessor judges is the power-on command that the HUD remote controller matched with described infrared receiving circuit sends, and comprising:
If the power-on command that described control command sends for the HUD remote controller matched with described infrared receiving circuit, then the vehicle-mounted HUD of described Microprocessor S3C44B0X enters awakening mode, and controls vehicle-mounted HUD Auto Power On and work;
If described Infrared remote controller is not HUD remote controller, or described control command is not power-on command, then the described microprocessor park mode that keeps vehicle-mounted HUD current.
Preferably, described control command comprises unique ID, for identifying whether described control command comes from the HUD remote controller matched with described infrared receiving circuit.
On the other hand, the embodiment of the present invention additionally provides a kind of control system of vehicle-mounted HUD switching on and shutting down, comprising: be built in the comparison testing circuit in vehicle-mounted HUD and microprocessor; Described microprocessor comprises wake-up signal end;
The described testing circuit that compares is connected with automobile batteries, for detecting the output voltage of automobile batteries in real time, further, the real-time output voltage of automobile batteries and the rated output voltage of automobile batteries are compared, comparative result is transferred to the wake-up signal end of the microprocessor be built in vehicle-mounted HUD;
Described microprocessor, for automatically starting the switching on and shutting down of vehicle-mounted HUD according to described comparative result, comprising: judge automobile starting when the real-time output voltage of automobile batteries is less than described rated output voltage, automatically starts vehicle-mounted HUD and carries out start work; When the real-time output voltage of automobile batteries equals described rated output voltage, keep the current state of vehicle-mounted HUD.
Further, the control system of described vehicle-mounted HUD switching on and shutting down also comprises external Infrared remote controller; Described vehicle-mounted HUD also comprises infrared receiving circuit, and described microprocessor also comprises infrared receiver end;
Described Infrared remote controller, for supplying user to described infrared receiving circuit sending controling instruction;
Described infrared receiving circuit, for being transferred to wake-up signal end and the infrared receiver end of described microprocessor by described control command; Described infrared receiver end comprises infrared signal and catches passage or infrared signal decoding channels;
Described microprocessor, also for controlling start or the shutdown of vehicle-mounted HUD according to described control command.
Further, described microprocessor, also for after described wake-up signal termination receives described control command, then controls vehicle-mounted HUD and enters accurate awakening mode; Further,
Described microprocessor, also for judging that whether described control command is power-on command that the HUD remote controller matched with described infrared receiving circuit sends, comprise: if the power-on command that described control command sends for the HUD remote controller matched with described infrared receiving circuit, then the vehicle-mounted HUD of described Microprocessor S3C44B0X enters awakening mode, and controls vehicle-mounted HUD Auto Power On and work; If described Infrared remote controller is not HUD remote controller, or described control command is not power-on command, then the described microprocessor park mode that keeps vehicle-mounted HUD current.
Preferably, described control command comprises unique ID, for identifying whether described control command comes from the HUD remote controller matched with described infrared receiving circuit.
Preferably, the described testing circuit that compares comprises op amp.
The control technology scheme of the vehicle-mounted HUD switching on and shutting down that the embodiment of the present invention provides, when utilizing automobile starting, whether automobile battery voltage by by the feature of a fixing Voltage Drop to lower voltage, falls can realize HUD self-starting function accurately by detecting automobile battery voltage in real time.Particularly, can realize controlling the startup of HUD according to the real-time output voltage of automobile batteries and the comparative result of rated output voltage by the microprocessor being built in HUD.Judge automobile starting when the real-time output voltage of automobile batteries is less than described rated output voltage, and the vehicle-mounted HUD of startup carries out start work automatically; When the real-time output voltage of automobile batteries equals described rated output voltage, keep the current state of vehicle-mounted HUD.
Further, the control technology scheme of the vehicle-mounted HUD switching on and shutting down that the embodiment of the present invention provides, also by installing from the position close to chaufeur or placing Infrared remote controller, manually can there is control command to vehicle-mounted HUD by utilizing this Infrared remote controller in chaufeur, control start or the shutdown of vehicle-mounted HUD easily.When vehicle-mounted HUD does not receive power-on command, keep readiness for action.Owing to only consuming the electric current of μ A (microampere) level when infrared receiving circuit works, and compare testing circuit op amp can be adopted to realize, in standby, vehicle-mounted HUD can not consume many excess current, thus avoid automobile batteries power shortage and cannot start or thump and situation that mistake starts occurs, reducing the stand-by power consumption of HUD.
Accompanying drawing explanation
Fig. 1 is the structural representation of an embodiment of the control system of vehicle-mounted HUD switching on and shutting down provided by the invention.
Fig. 2 is the flow chart of steps of an embodiment of the control method of vehicle-mounted HUD switching on and shutting down provided by the invention.
Fig. 3 is the flow chart of steps of the another embodiment of the control method of vehicle-mounted HUD switching on and shutting down provided by the invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described.
See Fig. 1, it is the structural representation of an embodiment of the control system of vehicle-mounted HUD switching on and shutting down provided by the invention.
In the present embodiment, the control system of described vehicle-mounted HUD switching on and shutting down comprises: be built in the comparison testing circuit 101 in vehicle-mounted HUD (head-up display) 100 and microprocessor 102; Described microprocessor (MCU) 102 comprises wake-up signal end or is provided with to wake up and controls pin Wake-Up.
Wherein, the described testing circuit 101 that compares is by OBD (On-BoardDiagnostic, onboard diagnostic system) interface (B+) is connected with automobile batteries, for detecting the output voltage of automobile batteries in real time, and, the real-time output voltage of automobile batteries and the rated output voltage of automobile batteries are compared, comparative result is transferred to the wake-up signal end Wake-Up of the microprocessor 102 be built in vehicle-mounted HUD100.
Described microprocessor 102, for automatically starting the switching on and shutting down of vehicle-mounted HUD100 according to described comparative result, comprise: judge automobile starting when the real-time output voltage of automobile batteries is less than described rated output voltage, automatically start vehicle-mounted HUD100 and carry out start work; When the real-time output voltage of automobile batteries equals described rated output voltage, keep the current state of vehicle-mounted HUD100.
Because automobile is when starting, the output voltage of Vehicular accumulator cell will drop to lower voltage by a fixing voltage (rated output voltage).Whether falling by detecting automobile battery voltage mouth B+ (positive pole), HUD self-starting function accurately can be realized.During concrete enforcement, the described testing circuit 101 that compares comprises op amp.By using a simple comparator, or op amp can realize the function of voltage compare.
Further, as shown in Figure 1, the control system of described vehicle-mounted HUD switching on and shutting down also comprises external Infrared remote controller 200; Described vehicle-mounted HUD100 also comprises infrared receiving circuit 103, and described microprocessor 102 also comprises infrared receiver end IR.Wherein, described Infrared remote controller 200, for supplying user to described infrared receiving circuit 103 sending controling instruction;
Described infrared receiving circuit 103, for being transferred to wake-up signal end Wake-Up and the infrared receiver end IR of described microprocessor 102 by described control command.During concrete enforcement, described infrared receiver end IR comprises infrared signal and catches passage or infrared signal decoding channels.When microprocessor 102 does not have a hardware infrared signal decoding channels, need to use that MCU's catch passage to carry out the decoding of infrared signal.
In the present embodiment, described microprocessor 102, also for controlling start or the shutdown of vehicle-mounted HUD100 according to described control command.Particularly, described microprocessor 102 after described wake-up signal termination receives described control command, then controls vehicle-mounted HUD and enters accurate awakening mode; Further,
Described microprocessor 102, also for judging that whether described control command is power-on command that the HUD remote controller matched with described infrared receiving circuit 103 sends, specifically comprise: if the power-on command that described control command sends for the HUD remote controller matched with described infrared receiving circuit 103, then described microprocessor 102 controls vehicle-mounted HUD100 and enters awakening mode, and controls vehicle-mounted HUD100 Auto Power On and work; If described Infrared remote controller 103 is not HUD remote controller, or described control command is not power-on command, then described microprocessor 102 park mode that keeps vehicle-mounted HUD current.
During concrete enforcement, the local installation infrared remote controller 200 that can be easy to touch at bearing circle or user, to realize the Non-follow control of vehicle-mounted HUD100 switching on and shutting down, receives by infrared receiving circuit 103 the switching on and shutting down signal that the remote controller that mates with HUD sends.The control command that Infrared remote controller 200 sends, the wake-up signal end Wake-Up of MCU is forwarded on the one hand by infrared receiving circuit 103, be relayed on the other hand the infrared receiver end IR of MCU, catch passage by the infrared signal of MCU or special infrared signal decoding channels is decoded to control command.Wake-up signal end Wake-Up is once receive this control command, and namely MCU enters accurate wake-up states or false awakening mode (preparation wakes vehicle-mounted HUD equipment up and carries out work); Now, catch by IR the signal that passage receives and judge whether this control command comes from HUD remote controller and whether this control command is power-on command further.
Preferably, described control command comprises unique ID, for identifying whether described control command comes from the HUD remote controller matched with described infrared receiving circuit.Judge that this control command comes from HUD remote controller and it is as power-on command once MCU, vehicle-mounted HUD100 enters real awakening mode, other functional modules of vehicle-mounted HUD100 just open power supply under the control of MCU, start working (as started read-out etc.).If judge that remote signal is not that HUD remote controller sends or order is not power-on command, MCU enters park mode again.During concrete enforcement, this control command can be also shutdown command or other instructions, thus controls vehicle-mounted HUD neatly and carry out shutting down or start other functions.
In addition, corresponding with the control system of the vehicle-mounted HUD switching on and shutting down that Fig. 1 embodiment provides, the embodiment of the present invention still further provides a kind of control method of vehicle-mounted HUD switching on and shutting down.
Referring to Fig. 2, it is the flow chart of steps of an embodiment of the control method of vehicle-mounted HUD switching on and shutting down provided by the invention.
Particularly, the control method of described vehicle-mounted HUD switching on and shutting down, mainly comprises the following steps:
Step S201: the output voltage being detected automobile batteries by the comparison testing circuit 101 be built in vehicle-mounted HUD100 in real time;
Step S202: describedly compare the wake-up signal end Wake-Up that the comparative result of the real-time output voltage of automobile batteries and the rated output voltage of automobile batteries is transferred to the microprocessor 102 be built in vehicle-mounted HUD100 by testing circuit 101;
Step S203: described microprocessor 102 starts the switching on and shutting down of vehicle-mounted HUD100 automatically according to described comparative result.Judge automobile starting when the real-time output voltage of automobile batteries is less than described rated output voltage, perform step S204; When the real-time output voltage of automobile batteries equals described rated output voltage, perform step S205;
Step S204: automatically start vehicle-mounted HUD100 (other function devices inner or module) and carry out start work;
Step S205: the current state keeping vehicle-mounted HUD100.The principle of work of the control system of the vehicle-mounted HUD switching on and shutting down that control method and Fig. 1 of the vehicle-mounted HUD switching on and shutting down that the present embodiment provides provide is identical, does not repeat them here.
The control technology scheme of the vehicle-mounted HUD switching on and shutting down that the embodiment of the present invention provides, when utilizing automobile starting, whether automobile battery voltage by by the feature of a fixing Voltage Drop to lower voltage, falls can realize HUD self-starting function accurately by detecting automobile battery voltage in real time.Particularly, can realize controlling the startup of HUD according to the real-time output voltage of automobile batteries and the comparative result of rated output voltage by the microprocessor being built in HUD.Judge automobile starting when the real-time output voltage of automobile batteries is less than described rated output voltage, and the vehicle-mounted HUD of startup carries out start work automatically; When the real-time output voltage of automobile batteries equals described rated output voltage, keep the current state of vehicle-mounted HUD.
Further, the control method of described vehicle-mounted HUD switching on and shutting down is also to realize the operation to vehicle-mounted HUD100 by external remote controller.
Referring to Fig. 3, it is the flow chart of steps of the another embodiment of the control method of vehicle-mounted HUD switching on and shutting down provided by the invention.
During concrete enforcement, described vehicle-mounted HUD100 also comprises infrared receiving circuit 103, then the control method of described vehicle-mounted HUD switching on and shutting down also comprises:
Step S301: by external Infrared remote controller 200 to described infrared receiving circuit 103 sending controling instruction;
Step S302: described control command is transferred to wake-up signal end Wake-Up and the infrared receiver end IR of described microprocessor 102 by described infrared receiving circuit 103; Wherein, described infrared receiver end IR comprises infrared signal and catches passage or infrared signal decoding channels;
Step S303: described microprocessor 102 controls start or the shutdown of vehicle-mounted HUD100 according to described control command.
During concrete enforcement, described step S303 specifically comprises:
Described microprocessor 102 after described wake-up signal end Wake-Up receives described control command, then controls vehicle-mounted HUD100 (immediately) and enters accurate awakening mode.When vehicle-mounted HUD100 has entered accurate awakening mode, further, described microprocessor 102 judges that whether described control command is power-on command that the HUD remote controller matched with described infrared receiving circuit 103 sends, comprise: if the power-on command that described control command sends for the HUD remote controller matched with described infrared receiving circuit 103, then described microprocessor 102 controls vehicle-mounted HUD100 and enters awakening mode, and controls vehicle-mounted HUD100 Auto Power On and work;
If described Infrared remote controller 200 is not HUD remote controller, or described control command is not power-on command, then described microprocessor 102 park mode that keeps vehicle-mounted HUD100 current.Wherein, described control command comprises unique ID, for identifying whether described control command comes from the HUD remote controller matched with described infrared receiving circuit 103.
The principle of work of the control system of the vehicle-mounted HUD switching on and shutting down that control method and Fig. 1 of the vehicle-mounted HUD switching on and shutting down that the present embodiment provides provide is identical, does not repeat them here.
Further, the control technology scheme of the vehicle-mounted HUD switching on and shutting down that the embodiment of the present invention provides is on the basis of Fig. 2 embodiment, also by installing from the position close to chaufeur or placing Infrared remote controller, manually can there is control command to vehicle-mounted HUD by utilizing this Infrared remote controller in chaufeur, control start or the shutdown of vehicle-mounted HUD easily.When vehicle-mounted HUD does not receive power-on command, keep readiness for action.Owing to only consuming the electric current of μ A (microampere) level when infrared receiving circuit works, and compare testing circuit op amp can be adopted to realize, in standby, vehicle-mounted HUD can not consume many excess current, thus avoid automobile batteries power shortage and the situation that cannot start occurs, reduce the stand-by power consumption of HUD.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (9)
1. a control method for vehicle-mounted HUD switching on and shutting down, is characterized in that, comprising:
The output voltage of automobile batteries is detected in real time by the comparison testing circuit be built in vehicle-mounted HUD;
Describedly compare the wake-up signal end that the comparative result of the real-time output voltage of automobile batteries and the rated output voltage of automobile batteries is transferred to the microprocessor be built in vehicle-mounted HUD by testing circuit;
Described microprocessor starts the switching on and shutting down of vehicle-mounted HUD automatically according to described comparative result, comprising: judge automobile starting when the real-time output voltage of automobile batteries is less than described rated output voltage, automatically starts vehicle-mounted HUD and carries out start work; When the real-time output voltage of automobile batteries equals described rated output voltage, keep the current state of vehicle-mounted HUD.
2. the control method of vehicle-mounted HUD switching on and shutting down as claimed in claim 1, is characterized in that, described vehicle-mounted HUD also comprises infrared receiving circuit, then described method also comprises:
By external Infrared remote controller to described infrared receiving circuit sending controling instruction; Described control command is transferred to wake-up signal end and the infrared receiver end of described microprocessor by described infrared receiving circuit; Described infrared receiver end comprises infrared signal and catches passage or infrared signal decoding channels;
Described microprocessor controls start or the shutdown of vehicle-mounted HUD according to described control command.
3. the control method of vehicle-mounted HUD switching on and shutting down as claimed in claim 2, is characterized in that, described microprocessor controls start or the shutdown of vehicle-mounted HUD according to described control command, specifically comprises:
Described microprocessor after described wake-up signal termination receives described control command, then controls vehicle-mounted HUD and enters accurate awakening mode;
Whether control command described in described microprocessor judges is the power-on command that the HUD remote controller matched with described infrared receiving circuit sends, and comprising:
If the power-on command that described control command sends for the HUD remote controller matched with described infrared receiving circuit, then the vehicle-mounted HUD of described Microprocessor S3C44B0X enters awakening mode, and controls vehicle-mounted HUD Auto Power On and work;
If described Infrared remote controller is not HUD remote controller, or described control command is not power-on command, then the described microprocessor park mode that keeps vehicle-mounted HUD current.
4. the control method of vehicle-mounted HUD switching on and shutting down as claimed in claim 3, it is characterized in that, described control command comprises unique ID, for identifying whether described control command comes from the HUD remote controller matched with described infrared receiving circuit.
5. a control system for vehicle-mounted HUD switching on and shutting down, is characterized in that, comprising: be built in the comparison testing circuit in vehicle-mounted HUD and microprocessor; Described microprocessor comprises wake-up signal end;
The described testing circuit that compares is connected with automobile batteries, for detecting the output voltage of automobile batteries in real time, further, the real-time output voltage of automobile batteries and the rated output voltage of automobile batteries are compared, comparative result is transferred to the wake-up signal end of the microprocessor be built in vehicle-mounted HUD;
Described microprocessor, for automatically starting the switching on and shutting down of vehicle-mounted HUD according to described comparative result, comprising: judge automobile starting when the real-time output voltage of automobile batteries is less than described rated output voltage, automatically starts vehicle-mounted HUD and carries out start work; When the real-time output voltage of automobile batteries equals described rated output voltage, keep the current state of vehicle-mounted HUD.
6. the control system of vehicle-mounted HUD switching on and shutting down as claimed in claim 5, is characterized in that, the control system of described vehicle-mounted HUD switching on and shutting down also comprises external Infrared remote controller; Described vehicle-mounted HUD also comprises infrared receiving circuit, and described microprocessor also comprises infrared receiver end;
Described Infrared remote controller, for supplying user to described infrared receiving circuit sending controling instruction;
Described infrared receiving circuit, for being transferred to wake-up signal end and the infrared receiver end of described microprocessor by described control command; Described infrared receiver end comprises infrared signal and catches passage or infrared signal decoding channels;
Described microprocessor, also for controlling start or the shutdown of vehicle-mounted HUD according to described control command.
7. the control system of vehicle-mounted HUD switching on and shutting down as claimed in claim 6, is characterized in that,
Described microprocessor, also for after described wake-up signal termination receives described control command, then controls vehicle-mounted HUD and enters accurate awakening mode; Further,
Described microprocessor, also for judging that whether described control command is the power-on command that the HUD remote controller matched with described infrared receiving circuit sends, comprising:
If the power-on command that described control command sends for the HUD remote controller matched with described infrared receiving circuit, then the vehicle-mounted HUD of described Microprocessor S3C44B0X enters awakening mode, and controls vehicle-mounted HUD Auto Power On and work;
If described Infrared remote controller is not HUD remote controller, or described control command is not power-on command, then the described microprocessor park mode that keeps vehicle-mounted HUD current.
8. the control system of vehicle-mounted HUD switching on and shutting down as claimed in claim 7, it is characterized in that, described control command comprises unique ID, for identifying whether described control command comes from the HUD remote controller matched with described infrared receiving circuit.
9. the control system of the vehicle-mounted HUD switching on and shutting down as described in any one of claim 5 ~ 8, is characterized in that, the described testing circuit that compares comprises op amp.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510780496.3A CN105438094B (en) | 2015-11-13 | 2015-11-13 | A kind of control method and system of vehicle-mounted HUD switching on and shutting down |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510780496.3A CN105438094B (en) | 2015-11-13 | 2015-11-13 | A kind of control method and system of vehicle-mounted HUD switching on and shutting down |
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| CN105438094B CN105438094B (en) | 2018-01-26 |
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| Publication number | Publication date |
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| CN105438094B (en) | 2018-01-26 |
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