CN112677905A - New vehicle recording method for saving hard disk storage space under intelligent driving background - Google Patents
New vehicle recording method for saving hard disk storage space under intelligent driving background Download PDFInfo
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Abstract
The invention discloses a new vehicle recording method for saving hard disk storage space under the intelligent driving background, which comprises a sensor, a CPU, interrupt control, control logic, a timer, an interface, a ROM, a RAM and a special function register, wherein a short-distance large-angle millimeter wave angle radar, a laser radar, a long-distance millimeter wave radar, a short-distance large-angle panoramic camera and a long-distance millimeter wave radar are connected with the CPU through the interface; the invention relates to a new vehicle recording method for saving hard disk storage space under the background of intelligent driving, which adopts a sensor to detect vehicle information data, is convenient for collecting and detecting the vehicle data, periodically transmits the data to an RAM through a CPU, performs covering recording through the RAM, saves the hard disk storage space and prolongs the service life, and when a special event occurs, records through the ROM to prevent the data from being covered and ensure the storage of the data, thereby achieving the effects of saving the hard disk storage space and prolonging the service life.
Description
Technical Field
The invention relates to the technical field of vehicles, in particular to a new vehicle recording method for saving hard disk storage space under an intelligent driving background.
Background
Present existing vehicle event data recorder, including the vehicle event data recorder who uses cell-phone APP to realize vehicle event data, all include following hardware: the video-capturing camera, the CPU running the program, the volatile memory for temporarily storing the video (called as flash memory, data is not stored after power failure) and the nonvolatile memory for storing the video for a long time (becoming a hard disk, data can be stored after power failure). The current driving recording method is that a CPU controls collected videos, the videos are temporarily stored in a flash memory and then stored in a hard disk, and when video data in the hard disk are full, the videos are covered in a circulating mode.
The current driving recording method has the following defects: the hard disks have write-in service life, and after a certain number of times of repeated covering and storage, the hard disks can lose effectiveness, and new hard disk storage equipment needs to be replaced, so that the total cost of the automobile data recorder is increased. Particularly, the mobile phone APP realizes the driving record on the mobile phone, and damages the mobile phone caused by repeated erasing and writing of the nonvolatile memory of the mobile phone, so that the mobile phone is damaged.
Particularly, under the condition that the intelligent driving grade is higher and higher, the function of the automobile data recorder can be developed from recording and restoring a porcelain collision scene to defining traffic accident responsibility (driver responsibility, garage responsibility, responsibility of an intelligent driving supplier and the like), defining spontaneous combustion responsibility of the electric automobile (driver responsibility, garage responsibility, responsibility of the intelligent driving supplier and the like), and insurance companies have more requirements on the aspects to determine insurance premiums and the like. Laws and regulations are followed.
Then correspondingly, the information recorded by the automobile data recorder can be developed from an original video of a wide-angle front camera to the original image of the front camera, the 360-degree look-around camera, the original image of the vehicle built-in camera (and the camera with more device azimuth angles in the future), the original dot matrix of the millimeter wave radar and the laser radar and other sensor signals of the vehicle (such as the vehicle speed, the steering wheel corner speed, the brake, the accelerator, whether the safety belt is fastened, the battery content of the electric vehicle, the battery temperature and the like).
Thus, the requirements for storage, the requirements for security level of the storage device (which may greatly increase hardware cost), are all increasing.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a new vehicle recording method for saving hard disk storage space under the intelligent driving background, has the advantages of saving the hard disk storage space and prolonging the service life of the hard disk, and solves the problems in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: the novel vehicle recording method capable of saving hard disk storage space under the intelligent driving background comprises a sensor, a CPU, an interrupt control unit, a control logic unit, a timer, an interface, a ROM, a RAM and a special function register, wherein the short-distance large-angle millimeter wave angle radar, the laser radar, the long-distance millimeter wave radar, the short-distance large-angle panoramic camera and the long-distance millimeter wave radar are connected with the CPU through interfaces, the interfaces are divided into a serial port and a parallel I/O port, the interrupt control unit can select automobile signal control and manual button control, the sensor comprises the short-distance large-angle millimeter wave angle radar, the laser radar, the long-distance millimeter wave radar, the short-distance large-angle panoramic camera and the long-distance millimeter wave radar, and the short-distance large-angle panoramic camera and the short-distance large-angle panoramic.
The recording method is as follows:
(1) arranging sensors according to different intelligent driving schemes and levels of the vehicle, fixing a CPU (central processing unit) in a vehicle cabin, connecting a timer, an interface, a ROM (read only memory), an RAM (random access memory) and a special function register with the CPU, wherein a serial port and the timer are connected with an interrupt controller, and the sensors are connected with the interface;
(2) in the driving process of a vehicle, a sensor detects data, the sensor transmits the detected data to a CPU (central processing unit) periodically through an interface, the CPU stores original data in an RAM (random access memory), the data in a configuration time range are ensured to be stored according to control logic, a special function memory records and stores an algorithm and sets data, a timer performs timing according to the configuration time range, and the original data are recorded in the RAM in a circulating covering mode;
(3) when a special event occurs, a prompt signal is sent out according to interrupt control, the CPU stops updating the RAM, original data are recorded into the ROM from the RAM, and a clock records time.
Preferably, the CPU may select the central controller to replace.
Preferably, the configuration time range is adjustable autonomously.
Preferably, the interface includes ETHERNET/CAN channel/MIPI, etc.
The parts not involved in the invention are the same as or can be realized by the prior art.
Compared with the prior art, the invention has the following beneficial effects:
a new vehicle recording method capable of saving hard disk storage space under intelligent driving background adopts a sensor to detect vehicle information data, facilitates collection and detection of vehicle data, periodically transmits the data to an RAM through a CPU, and carries out covering recording through the RAM, saves hard disk storage space, prolongs service life, and when special events occur, records through the ROM, prevents the data from being covered, ensures storage of the data, thereby achieving the effects of saving hard disk storage space and prolonging service life.
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Fig. 1 is a schematic overall flow chart of a new vehicle recording method for saving hard disk storage space in the context of intelligent driving according to the present invention.
Detailed Description
The present invention will be further described with reference to specific embodiments, which will become apparent from the following description, but are intended to be exemplary only, and not limiting as to the scope of the invention, it will be understood by those skilled in the art that changes in detail and modifications of form and detail may be made therein without departing from the spirit and scope of the invention, and that such changes and modifications are within the scope of the invention.
Example 1
Referring to fig. 1, a new vehicle recording method for saving hard disk storage space under the background of intelligent driving includes a sensor, a CPU, an interrupt controller, a control logic, a timer, an interface, a ROM, a RAM and a special function register, wherein the short-distance large-angle millimeter wave angle radar, the laser radar, the long-distance millimeter wave radar, the short-distance large-angle panoramic camera and the long-distance millimeter wave radar are all connected with the CPU through interfaces, the interfaces are divided into a serial port and a parallel I/O port, the interrupt controller can select vehicle signal control and manual button control, the sensor includes the short-distance large-angle millimeter wave angle radar, the laser radar, the long-distance millimeter wave radar, the short-distance large-angle panoramic camera and the long-distance millimeter wave radar, and the short-distance large-angle panoramic camera and the short-distance large;
the recording method is as follows:
(1) arranging sensors according to different intelligent driving schemes and levels of the vehicle, fixing a CPU (central processing unit) in a vehicle cabin, and connecting the sensors, a timer, an Ethernet, a ROM (read only memory), a RAM (random access memory) and a special function register with the CPU, wherein a serial port and the timer are connected with an interrupt control, and the sensors are connected with an interface;
(2) in the driving process of a vehicle, a sensor detects data, the sensor transmits the detected data to a CPU (central processing unit) periodically through an Ethernet, the CPU stores original data in an RAM (random access memory), the set time is determined to be 20s according to control logic, a special function memory records and stores an algorithm and set data, a timer performs timing according to a preparation time range, and the original data are recorded in the RAM in a circulating covering mode;
(3) when a special event occurs, a prompt signal is sent out according to interrupt control, the CPU stops updating the RAM, original data are recorded into the ROM from the RAM, and a clock records time.
According to the steps, the sensor is adopted to detect the vehicle information data, the collection and detection of the vehicle data are facilitated, the CPU is used for periodically transmitting the data to the RAM, the RAM is used for covering and recording, the hard disk storage space is saved, the service life is prolonged, when a special event occurs, the ROM is used for recording, the data is prevented from being covered, the storage of the data is ensured, and therefore the effects of saving the hard disk storage space and prolonging the service life are achieved.
Example 2
Referring to fig. 1, a new vehicle recording method for saving hard disk storage space under the background of intelligent driving includes a sensor, a CPU, an interrupt controller, a control logic, a timer, an interface, a ROM, a RAM and a special function register, wherein the short-distance large-angle millimeter wave angle radar, the laser radar, the long-distance millimeter wave radar, the short-distance large-angle panoramic camera and the long-distance millimeter wave radar are all connected with a central controller through interfaces, the interfaces are divided into a serial port and a parallel I/O port, the interrupt controller can select vehicle signal control and manual button control, the sensor includes the short-distance large-angle millimeter wave angle radar, the laser radar, the long-distance millimeter wave radar, the short-distance large-angle panoramic camera and the long-distance millimeter wave radar, and the short-distance large-angle millimeter wave angle radar and the long-distance;
the recording method is as follows:
(1) according to different intelligent driving schemes and levels of the vehicle, arranging sensors, fixing a central controller in a vehicle cabin, connecting the sensors, a timer, a CAN channel, a ROM, a RAM and a special function register with the central controller, wherein a serial port and the timer are connected with an interrupt controller, and the sensors are connected with an interface;
(2) in the driving process of a vehicle, a sensor detects data, the sensor transmits the detected data to a central controller periodically through a CAN channel, the central controller stores original data in an RAM, the set time is determined to be 20s according to control logic, a special function memory records and stores an algorithm and sets the data, a timer performs timing according to a preparation time range, and the original data are recorded in the RAM in a circulating covering mode;
(3) when a special event occurs, a prompt signal is sent out according to the interrupt control, the central controller stops the updating of the RAM, original data are recorded into the ROM from the RAM, and the clock records time.
According to the steps, the sensor is adopted to detect the vehicle information data, the collection and detection of the vehicle data are facilitated, the central controller is used for periodically transmitting the data to the RAM, the RAM is used for covering and recording, the hard disk storage space is saved, the service life is prolonged, when a special event occurs, the ROM is used for recording, the data is prevented from being covered, the storage of the data is guaranteed, and therefore the effects of saving the hard disk storage space and prolonging the service life are achieved.
To sum up: the invention relates to a new vehicle recording method for saving hard disk storage space under the background of intelligent driving, at the beginning, according to the difference of the intelligent driving scheme and grade of the vehicle, arranging sensors, fixing a CPU in a vehicle cabin, connecting a timer, an interface, a ROM, a RAM and a special function register with the CPU, wherein a serial port and the timer are connected with an interrupt control, the sensors are connected with the interface, during the driving of the vehicle, the sensors detect data, the sensors transmit the detected data to the CPU periodically through the interface, the CPU stores original data in the RAM, ensures to store the data in a configured time range according to a control logic, a special function memory records and stores algorithms and sets the data, the timer performs timing according to a configured time range, the original data are recorded in a circulating coverage manner in the RAM, when a special event occurs, a prompt signal is sent according to the interrupt control, the CPU stops the RAM updating, records the original data from the RAM into the ROM, and records the time by the clock; the steps ensure that the method has the advantages of saving the storage space of the hard disk and prolonging the service life of the hard disk.
While there have been shown and described what are at present considered to be the fundamental principles of the invention and its essential features and advantages, it will be understood by those skilled in the art that the invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (5)
1. A new vehicle recording method for saving hard disk storage space under intelligent driving background is characterized in that: the automobile signal control system comprises a sensor, a CPU, an interrupt control unit, a control logic unit, a timer, an interface, a ROM, an RAM and a special function register, wherein the short-distance large-angle millimeter wave angle radar, a laser radar, a long-distance millimeter wave radar, a short-distance large-angle panoramic camera and the long-distance millimeter wave radar are connected with the CPU through the interface, the interface is divided into a serial port and a parallel I/O port, the interrupt control unit can select automobile signal control and manual button control, the sensor comprises the short-distance large-angle millimeter wave angle radar, the laser radar, the long-distance millimeter wave radar, the short-distance large-angle panoramic camera and the long-distance millimeter wave radar, and the number of the short-distance large-angle millimeter wave angle.
2. The new vehicle recording method for saving hard disk storage space in the intelligent driving context according to claim 1, characterized in that: the recording method is as follows:
(1) arranging sensors according to different intelligent driving schemes and levels of the vehicle, fixing a CPU (central processing unit) in a vehicle cabin, connecting a timer, an interface, a ROM (read only memory), an RAM (random access memory) and a special function register with the CPU, wherein a serial port and the timer are connected with an interrupt controller, and the sensors are connected with the interface;
(2) in the driving process of a vehicle, a sensor detects data, the sensor transmits the detected data to a CPU (central processing unit) periodically through an interface, the CPU stores original data in an RAM (random access memory), the data in a configuration time range are ensured to be stored according to control logic, a special function memory records and stores an algorithm and sets data, a timer performs timing according to the configuration time range, and the original data are recorded in the RAM in a circulating covering mode;
(3) when a special event occurs, a prompt signal is sent out according to interrupt control, the CPU stops updating the RAM, original data are recorded into the ROM from the RAM, and a clock records time.
3. The new vehicle recording method for saving hard disk storage space in the intelligent driving context according to claim 2, characterized in that: the CPU may select the central controller for replacement.
4. The new vehicle recording method for saving hard disk storage space in the intelligent driving context according to claim 1, characterized in that: the configuration time range may be adjusted autonomously.
5. The new vehicle recording method for saving hard disk storage space in the intelligent driving context according to claim 1, characterized in that: the interface includes ETHERNET/CAN channel/MIPI, etc.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114435381A (en) * | 2022-02-25 | 2022-05-06 | 重庆长安汽车股份有限公司 | Vehicle data recording method and storage medium |
| CN114461144A (en) * | 2022-01-19 | 2022-05-10 | 清华大学 | Cooperative driving data storage device, data processing method and road side equipment |
| CN114461144B (en) * | 2022-01-19 | 2024-04-19 | 清华大学 | Data storage device, data processing method and road side equipment for collaborative driving |
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2021
- 2021-01-19 CN CN202110070440.4A patent/CN112677905A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114461144A (en) * | 2022-01-19 | 2022-05-10 | 清华大学 | Cooperative driving data storage device, data processing method and road side equipment |
| CN114461144B (en) * | 2022-01-19 | 2024-04-19 | 清华大学 | Data storage device, data processing method and road side equipment for collaborative driving |
| CN114435381A (en) * | 2022-02-25 | 2022-05-06 | 重庆长安汽车股份有限公司 | Vehicle data recording method and storage medium |
| CN114435381B (en) * | 2022-02-25 | 2024-02-27 | 重庆长安汽车股份有限公司 | Vehicle data recording method and storage medium |
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