CN113650567A - Method and system for quickly starting automobile audio entertainment domain - Google Patents
Method and system for quickly starting automobile audio entertainment domain Download PDFInfo
- Publication number
- CN113650567A CN113650567A CN202110833983.7A CN202110833983A CN113650567A CN 113650567 A CN113650567 A CN 113650567A CN 202110833983 A CN202110833983 A CN 202110833983A CN 113650567 A CN113650567 A CN 113650567A
- Authority
- CN
- China
- Prior art keywords
- processing chip
- audio
- iic
- mcu
- started
- 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
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000012545 processing Methods 0.000 claims description 80
- 230000015654 memory Effects 0.000 claims description 9
- 230000003321 amplification Effects 0.000 claims description 7
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 5
- 230000004888 barrier function Effects 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 3
- 230000010354 integration Effects 0.000 claims description 3
- 230000005236 sound signal Effects 0.000 description 10
- 230000006872 improvement Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
Abstract
The invention discloses a method and a system for quickly starting an automobile audio entertainment domain, which belong to the technical field of automobiles, and can be used for controlling an automobile sensing system through a rapidly started MCU when an automobile is just started and an Android system of an audio entertainment device or an electronic intelligent cockpit system is not started yet and a user needs to carry out backing or steering operation. The invention provides timely audio prompt for the user to guide the user to carry out backing or steering operation.
Description
Technical Field
The invention belongs to the technical field of automobiles, and particularly relates to a method and a system for quickly starting an automobile audio entertainment domain.
Background
Nowadays, automobiles are basically equipped with audio entertainment systems, most of which are android-based operating systems. Android has good ecology, but the system is too complex and huge, so that the starting time of the system is long, and 18s is needed at the fastest speed. This may lead to dangerous situations and poor user experience for users who need to reverse or turn to the vehicle upon starting, if there is no audible prompt.
Disclosure of Invention
Aiming at the defects or the improvement requirements of the prior art, the invention provides a method and a system for quickly starting an automobile audio entertainment domain, which provide timely audio prompts for a user and guide the user to carry out backing or steering operation.
To achieve the above object, according to one aspect of the present invention, there is provided a system for rapidly starting an audio entertainment domain of a car, comprising: the multi-core heterogeneous processing chip SOC comprises an AP core, an MCU core and a bus interface;
the reversing radar ECU drives the radar sensor to send out a detection signal, receives return data of the radar sensor, calculates the condition of a barrier behind the vehicle, and then sends processed information to the multi-core heterogeneous processing chip SOC through the CAN bus;
the audio processing chip DSP receives IIS signals of the multi-core heterogeneous processing chip SOC through an IIS bus, and the DSP sends the final sound data to the power amplification chip through the IIS bus to perform signal decoding and amplification;
the SPDT analog signal switch is connected with the audio processing chip DSP and the multi-core heterogeneous processing chip SOC, if a backing-up or steering request instruction is obtained when a vehicle is started, an Android system in an AP of the multi-core heterogeneous processing chip SOC is not started yet, an MCU of the multi-core heterogeneous processing chip SOC sets or monitors the state of the audio processing chip DSP through the SPDT analog signal switch, if the backing-up or steering request instruction is not obtained when the vehicle is started, the AP of the multi-core heterogeneous processing chip SOC is communicated with the audio processing chip DSP through the SPDT analog signal switch, and after the Android system is started, the AP of the multi-core heterogeneous processing chip SOC sets or monitors the state of the audio processing chip DSP.
In some optional embodiments, the SPDT analog signal switch shares three IIC connections, the first is an MCU _ IIC controlled by the MCU of the multi-core heterogeneous processing chip SOC, the second is an AP _ IIC controlled by the AP of the multi-core heterogeneous processing chip SOC, the third is a DECODE _ IIC of the audio processing chip DSP, and one of the IIC connections is selected for output according to the level of the Input Ctrl signal of the IIC.
In some optional embodiments, when the vehicle is started and there is a backing/steering request, the IIC Input Ctrl is at a high level, the MCU _ IIC and the DECODE _ IIC are turned on, and at this time, the MCU of the multi-core heterogeneous processing chip SOC sets or monitors the state of the audio processing chip DSP through the MCU _ IIC; when the vehicle is started without a backing request, the IIC Input Ctrl is at a low level, the AP _ IIC and the DECODE _ IIC are connected, and at the moment, after the Android system is started, the AP of the multi-core heterogeneous processing chip SOC sets or monitors the state of the audio processing chip DSP through the AP _ IIC.
In some optional embodiments, the audio processing chip DSP is connected to the memory chip FLASH through the SPI bus, and reads the audio data stored in the memory chip FLASH.
In some optional embodiments, the MCU of the multi-core heterogeneous processing chip SOC sets the audio processing chip DSP, processes the state information of the barrier, calculates the audio information to be played, and sends the audio information to the audio processing chip DSP through the MCU _ IIC bus, the audio processing chip DSP reads the target audio data in the memory chip FLASH as required, and sends the audio data to the power amplifier chip after processing, and the power amplifier chip converts the IIS bus data into an analog audio signal and amplifies the analog audio signal to drive the speaker to play.
In some optional embodiments, the multi-core heterogeneous processing chip SOC is respectively connected to a DDR memory and an EMMC memory, where the EMMC memory stores data and system files, and the DDR memory stores temporary data to be used.
In some optional embodiments, the power amplifier chip converts the audio IIS signal output by the audio processing chip DSP into a stereo analog signal, and drives the speaker to play after amplification.
According to another aspect of the present invention, there is provided a method for rapidly starting an audio entertainment domain of a vehicle, comprising:
when an automobile is just started and the Android system of an audio entertainment device or an electronic intelligent cockpit system is not started yet, if a reversing or steering operation instruction is obtained, the automobile sensing system is checked by an MCU in a multi-core heterogeneous processing chip which is started quickly to control;
collecting data through an automobile sensing system to carry out integration operation, outputting an operation result to sound equipment, and prompting a driver;
after the Android system is started, the AP core in the multi-core heterogeneous processing chip communicates with the MCU through the bus, and the MCU returns the control right of the system to the Android system after receiving the information and is controlled by the Android system.
In general, compared with the prior art, the above technical solution contemplated by the present invention can achieve the following beneficial effects:
the invention relates to a design method of an audio circuit of a quick-start automobile audio entertainment domain. When the Android system is not started completely when the vehicle is just started, when a user needs to back up or turn, audio prompt is achieved within 3 seconds of starting, prompt tones are provided for the user in time, and the user is guided to back up or turn. After the Android system is started, the Android system takes over the sound system, and various user requirements of music playing, navigation broadcasting and vehicle prompting can be met.
Drawings
FIG. 1 is a schematic diagram of an electrical structure of a system for rapidly starting an audio entertainment domain of a vehicle according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
In the present examples, "first", "second", etc. are used for distinguishing different objects, and are not used for describing a specific order or sequence.
The invention provides a method for quickly starting an automobile audio entertainment domain, which is characterized in that when an automobile is just started and an Android system of an audio entertainment device or an electronic intelligent cockpit system is not started yet, if a reversing or steering operation instruction is obtained, an automobile sensing system is checked by an MCU (microprogrammed control unit) in a multi-core heterogeneous processing chip which is started quickly to control the automobile sensing system; collecting data through an automobile sensing system to carry out integration operation, outputting an operation result to sound equipment, and prompting a driver; after the Android system is started, the AP core in the multi-core heterogeneous processing chip communicates with the MCU through the bus to send an AP core starting success signal, and the MCU returns the control right of the system to the Android system after receiving the information and is controlled by the Android system.
The method CAN be applied to an automobile controller, as shown in fig. 1, which includes IC1, IC1 is a multi-core heterogeneous processing chip SOC, which includes a MCU core with a fast start speed, an AP core with a strong computing power, and various BUS interfaces (BUS, CAN, IIC, IIS, GPIO, etc.). The MCU core can run a real-time operating system, can receive and process the data at a high enough speed when external events or data are generated, and the processing result can control the production process or make a quick response to the processing system within a specified time and control all real-time tasks to run coordinately. Its advantages are timely response and high reliability. For example, during starting, the starting time of the MCU core is short, and the starting can be completed within 100 ms. The AP core needs to operate an Android system, the starting time is long, and the starting time is usually more than 18s, even several minutes. The SOC connects DDR (IC 7 in fig. 1) and EMMC (IC 6 in fig. 1) memories, respectively. The EMMC stores data and system files, and the DDR stores temporary data which needs to be used.
When the vehicle is just started and a backing or steering request is made, the Android system is not started yet due to the long starting time of the AP core, and the MCU is started and controls CAN communication.
The ultrasonic radar sensor (such as the radar sensor 1, the radar sensor 2, the radar sensor 3 and the radar sensor 4 in the figure 1) is used for detecting the distance of obstacles around a vehicle, the ultrasonic radar sensor is connected to a reversing radar ECU (such as an IC2 in the figure 1), when a reversing or steering vehicle condition exists, the IC2 drives the ultrasonic radar sensor to send out a detection signal, meanwhile, the return data of the ultrasonic radar sensor is received, the condition of the obstacles around the vehicle is calculated, and the IC2 is connected with the IC1 through a CAN bus and sends the processed vehicle periphery information to the IC 1.
The audio processing chip DSP (for example, IC4 in fig. 1) is connected to the IC1 through the IIS bus, the IC1 transmits audio data to the IC4 through the IIS bus, and at the same time, the IC4 can also transmit audio signals to the IC1, and the power amplifier chip (for example, IC9 in fig. 1) receives the audio signals processed by the IC4, converts the audio signals into analog audio signals, amplifies the analog audio signals, and drives the speaker to play. The audio processing chip DSP can also read the audio data stored in the memory chip FLASH (IC 8 in fig. 1), and process and output the audio as needed, and the audio processing chip DSP sends the final sound data to the power amplifier chip IC9 through the IIS for signal decoding and amplification.
The storage chip FLASH is used for storing audio data, mainly various prompting tones of the vehicle.
The SPDT analog switch IC3 is a selection analog signal selection switch, which has three paths of IIC connection, the first path is MCU _ IIC controlled by MCU, the second path is AP _ IIC controlled by AP, the third path is DECODE _ IIC of the audio processing chip DSP, different IIC buses are selected to connect according to the condition of the vehicle when starting, namely, one of the paths of IIC is selected to output according to the level of the Input Ctrl signal of the IIC.
The IIC Input Ctrl is an IIC bus selection signal which is connected to the SPDT analog switch from the SOC, two IIC buses are connected to the SPDT analog switch from the SOC, the MCU _ IIC is an IIC bus controlled by the MCU, the AP _ IIC is an IIC bus controlled by the AP, and the DECODE _ IIC is connected with the SPDT analog switch and the audio processing chip DSP. When the vehicle is started and a backing-up or steering request is made, the IIC Input Ctrl is at a high level, the MCU _ IIC and the DECODE _ IIC are switched on, and the MCU sets or monitors the state of the DSP through the MCU _ IIC. When the vehicle is started without a backing or steering request, the IIC Input Ctrl is at a low level, the AP _ IIC and the DECODE _ IIC are connected, and at the moment, the AP sets or monitors the state of the DSP through the AP _ IIC after the Android system is started.
The power amplifier chip IC9 converts the audio IIS signal outputted from the audio processing chip DSP into a stereo analog signal, and then amplifies the stereo analog signal to drive the speaker for playing.
The method is characterized in that under the condition that a vehicle needs to be backed or steered when being started, the Android system of the infotainment system of the vehicle is not started yet, the MCU can be quickly started to control the ultrasonic radar of the vehicle and obtain the information of obstacles around the vehicle, meanwhile, the IIC control right of the audio processing chip DSP IC4 is obtained by controlling the IIC Input Ctrl signal to be high level, and the audio processing chip DSP IC4 is set and monitored. The audio processing chip DSP IC4 reads the audio data in the storage chip FLASH IC8 after successful setting and complete starting, and sends the audio data to the power amplifier chip IC9 through the IIS bus, and the power amplifier chip IC9 converts the IIS data into analog audio signals, and drives the loudspeaker to play after amplification. The MCU sets the audio processing chip DSP IC4, processes the state information of the barrier, calculates the audio information (type) to be played, and sends the audio information (type) to the audio processing chip DSP IC4 through the IIC bus, and the audio processing chip DSP IC4 reads the audio data suitable for the storage chip FLASH IC8 according to the requirement, and sends the audio data to the power amplifier chip IC9 after processing. The power amplifier chip IC9 converts IIS bus data into analog audio signals, amplifies the analog audio signals, and drives a loudspeaker to play. And after the Android system operated by the AP core is started, sending AP core start success information to the MCU core, driving IIC Input Ctrl to be low by the MCU, connecting the AP _ IIC and the DECODE _ IIC, and setting or monitoring the state of the DSP IC4 of the audio processing chip by the AP core through the AP _ IIC. At this time, the AP nuclear pipe audio processing chip DSP IC4 can play music, vehicle navigation broadcast and other complex applications and play vehicle prompts according to user requirements.
It should be noted that, according to the implementation requirement, each step/component described in the present application can be divided into more steps/components, and two or more steps/components or partial operations of the steps/components can be combined into new steps/components to achieve the purpose of the present invention.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. A system for rapidly starting an audio entertainment domain in a vehicle, comprising: the multi-core heterogeneous processing chip SOC comprises an AP core, an MCU core and a bus interface;
the reversing radar ECU drives the radar sensor to send out a detection signal, receives return data of the radar sensor, calculates the condition of a barrier behind the vehicle, and then sends processed information to the multi-core heterogeneous processing chip SOC through the CAN bus;
the audio processing chip DSP receives IIS signals of the multi-core heterogeneous processing chip SOC through an IIS bus, and the DSP sends the final sound data to the power amplification chip through the IIS bus to perform signal decoding and amplification;
the SPDT analog signal switch is connected with the audio processing chip DSP and the multi-core heterogeneous processing chip SOC, if a backing-up or steering request instruction is obtained when a vehicle is started, an Android system in an AP of the multi-core heterogeneous processing chip SOC is not started yet, an MCU of the multi-core heterogeneous processing chip SOC sets or monitors the state of the audio processing chip DSP through the SPDT analog signal switch, if the backing-up or steering request instruction is not obtained when the vehicle is started, the AP of the multi-core heterogeneous processing chip SOC is communicated with the audio processing chip DSP through the SPDT analog signal switch, and after the Android system is started, the AP of the multi-core heterogeneous processing chip SOC sets or monitors the state of the audio processing chip DSP.
2. The system of claim 1, wherein the SPDT analog signal switches share three IIC connections, the first is MCU _ IIC controlled by MCU of the multi-core heterogeneous processing chip SOC, the second is AP _ IIC controlled by AP of the multi-core heterogeneous processing chip SOC, and the third is decoder _ IIC of the audio processing chip DSP, and one of the IIC connections is selected for output according to the level of the Input Ctrl signal of the IIC.
3. The system of claim 2, wherein when the vehicle is started and there is a reverse/steering request, IIC Input Ctrl is high, and MCU _ IIC and DECODE _ IIC are turned on, and at this time, the MCU of the multi-core heterogeneous processing chip SOC sets or monitors the state of the audio processing chip DSP through MCU _ IIC; when the vehicle is started without a backing request, the IIC Input Ctrl is at a low level, the AP _ IIC and the DECODE _ IIC are connected, and at the moment, after the Android system is started, the AP of the multi-core heterogeneous processing chip SOC sets or monitors the state of the audio processing chip DSP through the AP _ IIC.
4. The system according to any one of claims 1 to 3, characterized in that the audio processing chip DSP is connected with the memory chip FLASH through the SPI bus to read the audio data stored in the memory chip FLASH.
5. The system of claim 4, wherein the MCU of the multi-core heterogeneous processing chip SOC sets the audio processing chip DSP, processes the state information of the obstacle, calculates the audio information to be played, and sends the audio information to the audio processing chip DSP through the MCU _ IIC bus, and the audio processing chip DSP reads the target audio data in the storage chip FLASH according to the requirement, sends the target audio data to the power amplifier chip after processing, and plays the target audio data through the power amplifier chip.
6. The system of claim 5, wherein the multi-core heterogeneous processing chip SOC is respectively connected with a DDR memory and an EMMC memory, wherein the EMMC memory stores data and system files, and the DDR memory stores temporary data to be used.
7. The system of claim 5, wherein the power amplifier chip converts the audio IIS signal outputted from the audio processing chip DSP into a stereo analog signal, and amplifies the stereo analog signal to drive a speaker for playing.
8. A method for rapidly starting an audio entertainment domain of a vehicle, comprising:
when an automobile is just started and the Android system of an audio entertainment device or an electronic intelligent cockpit system is not started yet, if a reversing or steering operation instruction is obtained, the automobile sensing system is checked by an MCU in a multi-core heterogeneous processing chip which is started quickly to control;
collecting data through an automobile sensing system to carry out integration operation, outputting an operation result to sound equipment, and prompting a driver;
after the Android system is started, the AP core in the multi-core heterogeneous processing chip communicates with the MCU through the bus, and the MCU returns the control right of the system to the Android system after receiving the information and is controlled by the Android system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110833983.7A CN113650567A (en) | 2021-07-23 | 2021-07-23 | Method and system for quickly starting automobile audio entertainment domain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110833983.7A CN113650567A (en) | 2021-07-23 | 2021-07-23 | Method and system for quickly starting automobile audio entertainment domain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113650567A true CN113650567A (en) | 2021-11-16 |
Family
ID=78489741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110833983.7A Pending CN113650567A (en) | 2021-07-23 | 2021-07-23 | Method and system for quickly starting automobile audio entertainment domain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113650567A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116691502A (en) * | 2023-08-01 | 2023-09-05 | 北京芯驰半导体科技有限公司 | Safety detection method and device for vehicle environment, electronic equipment and storage medium |
| WO2024055935A1 (en) * | 2022-09-14 | 2024-03-21 | 合肥杰发科技有限公司 | Chip, vehicle sound source playing method, vehicle-mounted device and storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106043124A (en) * | 2016-05-25 | 2016-10-26 | 青岛海信移动通信技术股份有限公司 | Method and device for controlling vehicle backing image display |
| CN108248509A (en) * | 2018-01-17 | 2018-07-06 | 深圳市路畅科技股份有限公司 | A kind of method, apparatus that reverse image is controlled to show and automatic navigator |
| CN108508447A (en) * | 2018-04-24 | 2018-09-07 | 无锡英捷汽车科技有限公司 | A kind of intelligent electric automobile runs at a low speed prompt system for electrical teaching |
| CN112040173A (en) * | 2020-07-20 | 2020-12-04 | 南斗六星系统集成有限公司 | Method for rapidly displaying reversing video through Android car machine system |
-
2021
- 2021-07-23 CN CN202110833983.7A patent/CN113650567A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106043124A (en) * | 2016-05-25 | 2016-10-26 | 青岛海信移动通信技术股份有限公司 | Method and device for controlling vehicle backing image display |
| CN108248509A (en) * | 2018-01-17 | 2018-07-06 | 深圳市路畅科技股份有限公司 | A kind of method, apparatus that reverse image is controlled to show and automatic navigator |
| CN108508447A (en) * | 2018-04-24 | 2018-09-07 | 无锡英捷汽车科技有限公司 | A kind of intelligent electric automobile runs at a low speed prompt system for electrical teaching |
| CN112040173A (en) * | 2020-07-20 | 2020-12-04 | 南斗六星系统集成有限公司 | Method for rapidly displaying reversing video through Android car machine system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024055935A1 (en) * | 2022-09-14 | 2024-03-21 | 合肥杰发科技有限公司 | Chip, vehicle sound source playing method, vehicle-mounted device and storage medium |
| CN116691502A (en) * | 2023-08-01 | 2023-09-05 | 北京芯驰半导体科技有限公司 | Safety detection method and device for vehicle environment, electronic equipment and storage medium |
| CN116691502B (en) * | 2023-08-01 | 2023-11-10 | 北京芯驰半导体科技有限公司 | Safety detection method and device for vehicle environment, electronic equipment and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110816550B (en) | Automatic driving control method and device, vehicle-mounted terminal and readable storage medium | |
| CN113650567A (en) | Method and system for quickly starting automobile audio entertainment domain | |
| US9950664B2 (en) | Sound generating system for environment friendly vehicle and a method for controlling the system | |
| CN102632837B (en) | Auxiliary parking system and controlling method thereof | |
| EP3139374A1 (en) | Operating sound generation device of environment-friendly vehicle and method for controlling same | |
| CN111216716B (en) | Automatic parking driver intervention response method, electronic device and automobile | |
| CN109318906B (en) | Method and device for detecting take-over of intelligent automobile and storage medium | |
| CN112416006B (en) | Driving mode switching method and system based on Sharing-X | |
| EP4155113A1 (en) | Method and device for controlling vehicle-mounted game, and program, storage medium and vehicle | |
| CN111532259A (en) | Remote control method and device for automobile and storage medium | |
| CN113055783A (en) | Vehicle audio output method and device, electronic equipment and storage medium | |
| CN111516674A (en) | Remote control parking method and device for automobile and storage medium | |
| CN104890596A (en) | In-vehicle navigation system for fulfilling multi-screen interaction function and realization method of multi-screen interaction function thereof | |
| CN111086557B (en) | Automatic turning-around method and device for vehicle | |
| CN201133937Y (en) | Backing radar system | |
| CN110588650A (en) | Adaptive cruise control system and method and vehicle | |
| CN114291110B (en) | Vehicle control method, device, electronic equipment and storage medium | |
| CN115177948A (en) | Vehicle interaction method and system supporting handheld entertainment equipment and automobile | |
| CN111284429A (en) | Vehicle alarm method, vehicle-mounted equipment, computer storage medium and system | |
| CN116142101A (en) | Entertainment system and method for vehicle, vehicle and storage medium | |
| CN112550279B (en) | Braking method and device for automobile and computer storage medium | |
| CN112003666B (en) | Vehicle-mounted radio control method, device, equipment and storage medium | |
| CN118907129A (en) | Vehicle machine exception handling method, microcontroller, electronic equipment and storage medium | |
| JP3372961B2 (en) | Security system for car audio equipment | |
| JP2593567Y2 (en) | Automotive audio equipment |
Legal Events
| 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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211116 |