CN108859967B - Intelligent interior rearview mirror device for vehicle and using method thereof - Google Patents
Intelligent interior rearview mirror device for vehicle and using method thereof Download PDFInfo
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- CN108859967B CN108859967B CN201810505108.4A CN201810505108A CN108859967B CN 108859967 B CN108859967 B CN 108859967B CN 201810505108 A CN201810505108 A CN 201810505108A CN 108859967 B CN108859967 B CN 108859967B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
- B60R1/02—Rear-view mirror arrangements
- B60R1/04—Rear-view mirror arrangements mounted inside vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
- B60R1/12—Mirror assemblies combined with other articles, e.g. clocks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
- B60R1/12—Mirror assemblies combined with other articles, e.g. clocks
- B60R1/1207—Mirror assemblies combined with other articles, e.g. clocks with lamps; with turn indicators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
- B60R1/12—Mirror assemblies combined with other articles, e.g. clocks
- B60R2001/1215—Mirror assemblies combined with other articles, e.g. clocks with information displays
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- Engineering & Computer Science (AREA)
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- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
- Traffic Control Systems (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
Abstract
The invention relates to an intelligent inner rear-view mirror device of a vehicle and a using method thereof in the technical field of automobile control, wherein the characteristics of the eyes of a driver are collected and recognized by an image collecting module; the ultrasonic sensor collects distance signals between the position of the eyes of a driver and the inner rearview mirror, and the inclination angle sensor collects angle signals of the inner rearview mirror; the memory is used for storing the acquired data; the control module calculates the obtained distance signal and angle signal to output a light intensity control signal to the illumination adjusting device, outputs a motor control signal to the motor driving module and outputs a display signal to the display screen, the illumination adjusting device is used for adjusting the on-off and brightness of the illuminating lamps around the inside rearview mirror, and the motor driving module is used for adjusting the angle and distance of the inside mirror; and displaying the information of the current angle and the height position in real time through the display screen. The blind area of a driver can be reduced, the visual field range is enlarged, the safety factor of automobile driving is improved, and traffic accidents are reduced.
Description
Technical Field
The invention relates to the technical field of automobile control, in particular to an intelligent inner rear-view mirror control device for a vehicle and a using method.
Background
Currently, automobiles have become the most commonly used vehicle in the world. However, the automobile brings convenience to people and brings a series of traffic accidents, and even causes death of people. According to official statistics, 90% of traffic accidents are caused by automobile blind areas. The distance of the front blind area is related to the height of the vehicle body, the height of the seat, the length of the vehicle head, the height of a driver and the like.
In many devices of automobiles, the problem of causing automobile blind areas is mainly the problem of belonging to the interior rearview mirror, and in the driving process of the automobile, a driver needs to consider the influence factors of the interior rearview mirror of a cab, such as the height of an automobile body, the height of a seat, the length of a head of the automobile, the height of the driver and the like, and set the direction angle and the height position of the interior rearview mirror.
In the driving process of a vehicle, a driver may cause the change of the sitting posture of the driver due to fatigue or the change of external light and other subjective and objective factors, and finally the change of the angle and the height distance between the current conventional visual angle of the driver and the inside rearview mirror is caused, so that a blind area is generated, and a traffic accident is caused.
Disclosure of Invention
Aiming at the problems of the inside rearview mirror during the running of the automobile, the invention provides the intelligent inside rearview mirror device for the automobile, which can greatly reduce the blind area of a driver, enlarge the visual field range, improve the safety factor of the running of the automobile and reduce traffic accidents.
Therefore, the technical scheme provided by the invention is as follows: an intelligent interior rearview mirror device for a vehicle comprises a control module, an image acquisition module, a memory, a motor driving module, an inclination angle sensor, an ultrasonic sensor, a display screen and an illumination adjusting device; the control module controls the work of the whole device and collects and identifies the characteristics of the eyes of the driver through the image collection module; the ultrasonic sensor is responsible for collecting distance signals between the position of the eyes of a driver and the inner rearview mirror, and the inclination angle sensor is responsible for collecting angle signals of the inner rearview mirror in real time; the memory is used for storing the acquired data; the control module calculates the obtained distance signal and angle signal to output a light intensity control signal to the illumination adjusting device, outputs a motor control signal to the motor driving module and outputs a display signal to the display screen, the illumination adjusting device is used for adjusting the on-off and brightness of the illuminating lamps around the rearview mirror in the automobile, and the motor driving module is used for adjusting the angle and the position of the rearview mirror; and displaying the current angle and position information in real time through a display screen.
Furthermore, the image acquisition module acquires the eye and other facial features of the driver to form a face recognition signal, the face recognition signal is stored in the memory, and the control module calls the face recognition signal to provide an initial value of the position of the inner rearview mirror according with the driving habit of a specific driver.
The invention is further improved in that the image acquisition module comprises a camera, a tilt angle sensor and an ultrasonic sensor, the camera, the tilt angle sensor and the ultrasonic sensor are placed outside the interior rearview mirror and hung vertically below the interior rearview mirror, and the control module, the memory, the motor driving module and the controller in the illumination adjusting device are arranged inside the interior rearview mirror.
Furthermore, the control module mainly comprises an FPGA and a GPU processor, the GPU is responsible for carrying out graphic processing on data acquired by the camera, and the FPGA is responsible for controlling the processing of various signal data of the whole system.
Preferably, the display screen is an OLED display screen and is arranged in the lower left corner of the inside rearview mirror.
Preferably, the illumination adjusting device consists of an LED ceiling lamp and a control device.
When the device is used, the method comprises the following steps:
s1, when a driver sends a car, the driver sits up, and the inner rearview mirror is adjusted to a proper position according to a conventional visual angle; at the moment, the image acquisition module acquires the eye characteristics and other facial characteristics of a driver, compares the facial characteristics recorded by the memory, calls the previously stored internal rearview mirror position initial value of a specific person if the facial characteristics accord with the record, and realizes the calibration work before driving through the inclination angle sensor and the ultrasonic sensor if the internal rearview mirror position initial value does not accord with the record, wherein the specific calibration mode is as follows: when the camera identifies eye characteristics and other face characteristics of a driver, the inclination angle sensor acquires the inclination angle of the current endoscope, the ultrasonic sensor acquires the distance between a specific body part of the driver and the endoscope, the control module takes the inclination angle and the distance acquired by the two sensors at the moment as reference values after driving, and the calibration value is stored in the memory and is taken as the initial value of the position of the endoscope of a specific person;
s2, in the driving process of a driver, the control module operates the inside rearview mirror to move up, down, left, right and back and forth by controlling the motor driving module of the inside rearview mirror, so that the camera can inquire the eye characteristics and other facial characteristics of the driver in real time, when the eye characteristics and other facial characteristics of the driver are identified by the camera, the inclination angle sensor acquires the inclination angle of the inside rearview mirror and the distance between the specific body part of the driver and the inside rearview mirror acquired by the ultrasonic sensor, and if the current obtained angle and distance are not consistent with the distance calibrated before driving, the control module operates the inside rearview mirror to move up, down, left, right and angle by controlling the motor driving module of the inside rearview mirror, so that the angles and distances acquired by the inclination angle sensor and the ultrasonic sensor are smaller than an error value;
s3, along with the change of the angle and the height distance of the inside rear-view mirror, the information of the current data can appear on the display screen arranged on the inside rear-view mirror in real time, so that a driver can conveniently check the information and prepare for driving the vehicle next time;
s4, in the driving process of a driver, the inclination angle sensor and the ultrasonic sensor collect information such as the real-time angle, the height distance and the like of the current driver and the interior rearview mirror, and the information is processed and analyzed by the control module, so that the light intensity of the illuminating lamps arranged around the interior rearview mirror can be correspondingly changed under the action of the illumination adjusting device, and the optimal illumination environment is provided for the driver.
The invention has the beneficial effects that:
the invention provides an instant, simple and efficient intelligent vehicle inside rear-view mirror device, which can greatly improve the safety factor of vehicles in running, effectively reduce the occurrence of traffic accidents and promote the development of traffic industry. The embedded technology, the motor technology, the sensor technology, the image acquisition, the display screen technology, the illumination adjustment technology, the image processing and recognition technology are integrated together, so that a driver can obtain a large enough visual field through the inside rearview mirror in the driving process of the vehicle, the safe driving of the vehicle is ensured, the change of the current parameters can be checked on the inside rearview mirror in real time, the driver can obtain the current optimal visual angle greatly, and the preparation is made for driving the vehicle next time; meanwhile, the illuminating lamps are arranged around the inside rearview mirror, and the illuminating intensity of the illuminating lamps around the inside rearview mirror is controlled in real time through processing and analysis of the control module, so that the best illuminating environment is provided for a driver, the driver can conveniently check the surrounding vehicle conditions, the front blind area of the driver is reduced, and the visual field range is enlarged.
Drawings
FIG. 1 is a block diagram of the system of the present invention.
Fig. 2 is a schematic view of an interior rear view mirror mounting structure (the interior structure of the interior rear view mirror is not shown).
In the figure, 1 an inner rear-view mirror, 2 an up-down angle adjusting servo motor, 3 a left-right angle adjusting servo motor, 4 a sliding track and 5 a front-back movement adjusting servo motor.
Detailed description of the preferred embodiments
The present invention will be described in detail below with reference to the drawings and examples.
As shown in fig. 1 and 2, the intelligent adjusting device for the inside rearview mirror comprises a control module, an image acquisition module, a memory, a motor driving module, an inclination angle sensor, an ultrasonic sensor, a display screen and an illumination adjusting device, wherein the control module is used for controlling the image acquisition module to acquire an image; the control module controls the work of the whole device and collects and identifies the characteristics of the eyes of the driver through the image collection module; the ultrasonic sensor is responsible for collecting distance signals between the position of the eyes of a driver and the inner rearview mirror, and the inclination angle sensor is responsible for collecting angle signals of the inner rearview mirror in real time; the memory is used for storing the acquired data; the control module calculates the obtained distance signal and angle signal to output a light intensity control signal to the illumination adjusting device, outputs a motor control signal to the motor driving module and outputs a display signal to the display screen, the illumination adjusting device is used for adjusting the on-off and brightness of the illuminating lamps around the rearview mirror in the automobile, and the motor driving module is used for adjusting the angle and the position of the rearview mirror; and displaying the current angle and position information in real time through a display screen.
The image acquisition module acquires the eye and other facial features of a driver to form a face recognition signal and stores the face recognition signal into the memory, and the control module gives an initial value of the position of the inner rearview mirror according with the driving habit of a specific driver by calling the face recognition signal.
The image acquisition module comprises a camera, an inclination angle sensor and an ultrasonic sensor, the image acquisition module is placed outside the interior rearview mirror and hung below the interior rearview mirror, and the control module, the memory, the motor driving module and the controller in the illumination adjusting device are arranged inside the interior rearview mirror.
The control module mainly comprises an FPGA and a GPU processor, the GPU is used for carrying out graphic processing on data acquired by the camera, and the FPGA is used for processing various signal data. The GPU processor is used as a graphic processor and is responsible for the drive control of an optical/light source device, the parameter setting of the light source device and the like; the FPGA is responsible for processing and controlling various data, including data processed by the GPU processor.
The type of the inclination angle sensor is MPU-6050; the model of the ultrasonic sensor is HC-SR 04. The camera module consists of a camera and a camera drive; the camera model is JA-F5M. The motor driving module consists of a servo motor and a servo motor peripheral driving assembly. The servo motor is in a BCH1303N12A1C model, and a driving assembly is L298N. The storage module adopts a Micro SD card. The display screen module is composed of an OLED display screen, and specifically adopts an Arduino 12864 liquid crystal screen. The lighting adjusting device consists of an LED ceiling lamp and a control device, and the control device adopts OP-DY 220/22.
In use, the apparatus may comprise the steps of:
s1, when a driver sends a car, the driver sits up, and the inner rearview mirror is adjusted to a proper position according to a conventional visual angle; at the moment, the image acquisition module acquires the eye characteristics and other facial characteristics of a driver, compares the facial characteristics recorded by the memory, calls the previously stored internal rearview mirror position initial value of a specific person if the facial characteristics accord with the record, and realizes the calibration work before driving through the inclination angle sensor and the ultrasonic sensor if the internal rearview mirror position initial value does not accord with the record, wherein the specific calibration mode is as follows: when the camera identifies eye characteristics and other face characteristics of a driver, the inclination angle sensor acquires the inclination angle of the current endoscope, the ultrasonic sensor acquires the distance between a specific body part of the driver and the endoscope, the control module takes the inclination angle and the distance acquired by the two sensors at the moment as reference values after driving, and the calibration value is stored in the memory and is taken as the initial value of the position of the endoscope of a specific person;
s2, in the driving process of a driver, the control module operates the inside rearview mirror to move up, down, left and right angles and back and forth by controlling the motor driving module of the inside rearview mirror, as shown in figure 2, the inside rearview mirror 1 can adjust the up and down angle through the up and down angle adjusting servo motor 2, adjust the left and right angle through the left and right angle adjusting servo motor 3, and drive the inside rearview mirror to move back and forth in the sliding track 4 by the back and forth adjusting servo motor 5 to realize adjustment. The camera can inquire the eye characteristics and other facial characteristics of a driver in real time, when the eye characteristics and other facial characteristics of the driver are identified by the camera, the inclination angle sensor acquires the current inclination angle of the interior mirror and the distance between the specific body part of the driver and the interior mirror acquired by the ultrasonic sensor, and if the current acquired angle and distance are not consistent with the calibrated distance before driving, the control module controls the motor driving module of the interior mirror to operate the interior mirror to move up and down, left and right, and the angle and distance acquired by the inclination angle sensor and the ultrasonic sensor are smaller than an error value;
s3, along with the change of the angle and the height distance of the inside rear-view mirror, the information of the current data can appear on the display screen arranged on the inside rear-view mirror in real time, so that a driver can conveniently check the information and prepare for driving the vehicle next time;
s4, in the driving process of a driver, the inclination angle sensor and the ultrasonic sensor collect information such as the real-time angle, the height distance and the like of the current driver and the interior rearview mirror, and the information is processed and analyzed by the control module, so that the light intensity of the illuminating lamps arranged around the interior rearview mirror can be correspondingly changed under the action of the illumination adjusting device, and the optimal illumination environment is provided for the driver.
The image acquisition module comprises the following working steps:
acquisition of image information: the camera sends the signals to a video acquisition card, and the signals are converted into digital video signals through sampling and quantization processing.
Processing images: the method mainly comprises image enhancement, image segmentation, edge extraction, image restoration and the like, and can enable the acquired signals to be more suitable for the microcontroller to perform feature extraction.
Image feature extraction: and performing characteristic processing on the photographed image, deriving useful information from the filter circuit, and finding the most useful characteristic from a plurality of characteristics so as to reduce the difficulty of subsequent processing.
Image recognition: and identifying different objects by adopting a template matching method and executing corresponding functions.
The device has the following functions:
1. but the intelligent regulation vehicle interior mirror height and angle: the processor controls the motor driving module of the interior rearview mirror to operate the interior rearview mirror to move up, down, left, right and angles, so that the camera can inquire eye characteristics and other facial characteristics of a driver in real time, when the eye characteristics and other facial characteristics of the driver are identified by the camera, the inclination angle sensor acquires the inclination angle of the current interior mirror and the distance between a specific body part of the driver and the interior rearview mirror acquired by the ultrasonic sensor, and if the currently acquired angle and distance are inconsistent with the calibrated distance before driving, the processor controls the motor driving module of the interior rearview mirror to operate the interior rearview mirror to move up, down, left, right and angles.
2. And (3) storing a plurality of items of data: the external storage module is used for storing the collected data, and the method comprises the following steps: the eye characteristics of each driver and other face characteristics of the driver as well as the horizontal distance difference and the vertical distance difference generated by each driver and the interior rearview mirror.
3. The display screen displays the current conventional visual angle of the current driver and the angle, height distance and other parameter information of the interior rearview mirror in real time: the transparent display screen module arranged inside the inner rearview mirror can provide various parameter information which changes in real time for a driver, and the driver can obtain the optimal visual angle conveniently.
4. The reflected light of the interior rearview mirror is automatically adjusted: the mode that the inclination angle sensor measuring module, the ultrasonic module and the illuminating lamps are combined is adopted, the illumination intensity of the illuminating lamps at the periphery is adjusted in real time through processing and analysis of the control module, and the optimal illumination environment is provided for a driver.
5. The invention can be used not only on automobiles, but also in other vehicles.
The present invention is not limited to the above-mentioned embodiments, and based on the technical solutions disclosed in the present invention, those skilled in the art can make some substitutions and modifications to some technical features without creative efforts according to the disclosed technical contents, and these substitutions and modifications are all within the protection scope of the present invention.
Claims (5)
1. An intelligent interior rearview mirror device for a vehicle comprises a control module, an image acquisition module, a memory, a motor driving module, an inclination angle sensor, an ultrasonic sensor, a display screen and an illumination adjusting device; the control module controls the work of the whole device and collects and identifies the characteristics of the eyes of the driver through the image collection module; the ultrasonic sensor is responsible for collecting distance signals between the position of the eyes of a driver and the inner rearview mirror, and the inclination angle sensor is responsible for collecting angle signals of the inner rearview mirror in real time; the memory is used for storing the acquired data; the control module calculates the obtained distance signal and angle signal to output a light intensity control signal to the illumination adjusting device, outputs a motor control signal to the motor driving module and outputs a display signal to the display screen, the illumination adjusting device is used for adjusting the on-off and brightness of the illuminating lamps around the rearview mirror in the automobile, and the motor driving module is used for adjusting the angle and the position of the rearview mirror; displaying the current angle and position information in real time through a display screen; the control module gives an initial value of the position of the inner rear-view mirror according with the driving habit of a specific driver by calling the face recognition signal; the image acquisition module comprises a camera, an inclination angle sensor and an ultrasonic sensor, the image acquisition module is placed outside the interior rearview mirror and hung below the interior rearview mirror, the display screen, the control module, the memory and the motor driving module are arranged inside the interior rearview mirror, and the controller in the illumination adjusting device is placed inside the interior rearview mirror.
2. The vehicle intelligent inside rear-view mirror device according to claim 1, characterized in that: the control module mainly comprises an FPGA and a GPU processor, the GPU is used for carrying out graphic processing on data acquired by the camera, and the FPGA is used for processing various signal data.
3. The vehicle intelligent inside rear-view mirror device according to claim 1, characterized in that: the display screen is an OLED display screen and is arranged in the lower left corner of the inside rearview mirror.
4. The vehicle intelligent inside rear-view mirror device according to claim 1, characterized in that: the lighting adjusting device is composed of an LED ceiling lamp and a control device.
5. A use method of an intelligent interior rear-view mirror device of a vehicle comprises the following steps:
s1, when a driver sends a car, the driver sits up, and the inner rearview mirror is adjusted to a proper position according to a conventional visual angle; at the moment, the image acquisition module acquires the eye characteristics and other facial characteristics of a driver, compares the facial characteristics recorded by the memory, calls the previously stored internal rearview mirror position initial value of a specific person if the facial characteristics accord with the record, and realizes the calibration work before driving through the inclination angle sensor and the ultrasonic sensor if the internal rearview mirror position initial value does not accord with the record, wherein the specific calibration mode is as follows: when the camera identifies eye characteristics and other face characteristics of a driver, the inclination angle sensor acquires the inclination angle of the current endoscope, the ultrasonic sensor acquires the distance between a specific body part of the driver and the endoscope, the control module takes the inclination angle and the distance acquired by the two sensors at the moment as reference values after driving, and the calibration value is stored in the memory and is taken as the initial value of the position of the endoscope of a specific person;
s2, in the driving process of a driver, the control module operates the inside rearview mirror to move up, down, left, right and back and forth by controlling the motor driving module of the inside rearview mirror, so that the camera can inquire the eye characteristics and other facial characteristics of the driver in real time, when the eye characteristics and other facial characteristics of the driver are identified by the camera, the inclination angle sensor acquires the inclination angle of the inside rearview mirror and the distance between the specific body part of the driver and the inside rearview mirror acquired by the ultrasonic sensor, and if the current obtained angle and distance are not consistent with the distance calibrated before driving, the control module operates the inside rearview mirror to move up, down, left, right and angle by controlling the motor driving module of the inside rearview mirror, so that the angles and distances acquired by the inclination angle sensor and the ultrasonic sensor are smaller than an error value;
s3, along with the change of the angle and the height distance of the inside rear-view mirror, the information of the current data can appear on the display screen arranged on the inside rear-view mirror in real time, so that a driver can conveniently check the information and prepare for driving the vehicle next time;
s4, in the driving process of a driver, the inclination angle sensor and the ultrasonic sensor collect information such as the real-time angle, the height distance and the like of the current driver and the interior rearview mirror, and the information is processed and analyzed by the control module, so that the light intensity of the illuminating lamps arranged around the interior rearview mirror can be correspondingly changed under the action of the illumination adjusting device, and the optimal illumination environment is provided for the driver.
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| CN110103865B (en) * | 2019-04-17 | 2021-12-03 | 浙江合众新能源汽车有限公司 | Driver vehicle-mounted personalized configuration application system based on face recognition |
| CN114212093B (en) * | 2021-12-08 | 2024-03-12 | 浙江大学 | Safe driving monitoring method, system and storable medium |
| CN114889526B (en) * | 2022-04-13 | 2024-05-07 | 广州优创电子有限公司 | Vehicle-mounted intelligent electronic exterior rearview mirror with built-in left and right display screens |
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