Rearview mirror with interactive function

Abstract

The application discloses a rearview mirror with an interactive function, and relates to the technical field of rearview mirrors, aiming to solve the problems of information acquisition delay and distraction of attention in the prior art. The rearview mirror comprises a rearview mirror main body, a voice interaction module, a millimeter wave radar module and a double-lens assembly. The voice interaction module, the millimeter wave radar module and the double-lens assembly are integrated in the rearview mirror main body to form an integrated functional structure. The double-lens assembly comprises a fixed lens and a movable lens. The fixed lens is embedded on one side of the viewing area of the rearview mirror main body, and the angle of the fixed lens is fixed, so that the fixed lens can provide a conventional rear basic field of view. The movable lens is embedded on the other side of the viewing area of the rearview mirror main body. A viewing driving mechanism is connected to the side of the movable lens away from the viewing surface. The movable lens can rotate under the driving of the viewing driving mechanism, so that the driver can directly observe the position of the rear vehicle. The application has the advantage of improving driving safety.

Description

Technical Field

[0001] This invention relates to the field of rearview mirror technology, and more specifically, to a rearview mirror with interactive functions. Background Technology

[0002] As the automotive industry undergoes a profound transformation towards intelligence and connectivity, intelligent connected vehicle technology is evolving in all aspects, from the iteration of autonomous driving assistance functions to the improvement of the in-vehicle ecosystem, continuously reshaping the user's driving experience.

[0003] In this process, users' demands for in-vehicle devices are no longer limited to basic control functions, but are rapidly upgrading towards intelligent decision-making and humanized interaction. This requires devices to accurately understand driving intentions and expects the interaction process to adapt to the safety and efficiency requirements of driving scenarios, achieving "burdenless" information acquisition and command execution.

[0004] However, the core interaction path of current in-vehicle interactive systems relies on the "voice control + screen display + audio broadcast" model, which makes it difficult to balance driving safety and information acquisition efficiency.

[0005] From the perspective of actual driving scenarios, this mode has two major problems: First, the risk of distraction. When the driver needs to obtain information such as the vehicle status, he / she needs to shift his / her gaze from the road in front to the central control or instrument panel screen. Even a brief 1-2 seconds of deviance of gaze may cause safety hazards due to sudden changes in road conditions.

[0006] Secondly, information transmission delays and misjudgments can occur. For voice feedback that relies on auditory reception, information attenuation or interference can easily occur, leading drivers to misjudge key information. For example, when a driver uses voice to inquire "Is there a vehicle approaching from behind?" to plan a lane change, if they only rely on the vehicle's voice broadcast "A vehicle is approaching from behind", they may not hear it clearly due to information attenuation or interference. If they then turn to check the rear camera image displayed on the vehicle's screen, they need to interrupt their observation of the road conditions ahead, creating a safety gap of "interactive waiting" or "attention switching".

[0007] The current situation, characterized by "voice feedback being easily interfered with and screen interaction requiring a shift in gaze," is gradually failing to meet the "real-time, safe, and seamless" interaction requirements of intelligent connected vehicles, and has become a key pain point restricting further upgrades to the in-vehicle interactive experience. In light of this, we propose a rearview mirror with interactive functions. Summary of the Invention

[0008] The purpose of this invention is to provide a rearview mirror with interactive functions, which aims to solve the problems of information acquisition delay and attention distraction in the prior art.

[0009] To solve the above technical problems, the present application provides the following technical solutions: a rearview mirror with an interactive function, comprising a rearview mirror main body, a voice interaction module, a millimeter wave radar module and a double lens assembly, the voice interaction module, the millimeter wave radar module and the double lens assembly are integrated inside the rearview mirror main body to form an integrated functional structure, and the double lens assembly includes a fixed lens and a movable lens.

[0010] The fixed lens is embedded on one side of the viewing area of the rearview mirror main body, and the angle is fixed, which is used to provide a regular rear basic field of view.

[0011] The movable lens is embedded on the other side of the viewing area of the rearview mirror main body, and the side away from the viewing surface is connected with a viewing driving mechanism, which is driven by the viewing driving mechanism to realize angle rotation, which is used to realize direct observation of the position of the rear vehicle by the driver.

[0012] Preferably, the rearview mirror main body is also provided with an interactive driving mechanism, and the interactive driving mechanism comprises a horizontal shaft motor, a vertical shaft motor and an interactive transmission assembly.

[0013] The horizontal shaft motor and the vertical shaft motor are respectively electrically connected with a vehicle body signal processing unit, the interactive transmission assembly is composed of a gear set and a rotating shaft, the horizontal shaft motor is used to drive the rearview mirror main body to rotate around the horizontal shaft through the interactive transmission assembly, and the vertical shaft motor is used to drive the rearview mirror main body to rotate around the vertical shaft through the interactive transmission assembly.

[0014] Preferably, the voice interaction module is composed of a microphone and a vehicle body signal processing unit.

[0015] The microphone is assembled inside the rearview mirror main body, which is used to receive user voice questions and convert sound signals into electric signals.

[0016] The vehicle body signal processing unit is electrically connected with a vehicle system and the microphone respectively, which is used to transmit the electric signal converted by the microphone to the vehicle system, analyze the question by the vehicle system, generate an answer containing yes or no, and transmit the answer back to the vehicle body signal processing unit, when the answer is yes, the vehicle body signal processing unit sends an electric signal to the horizontal shaft motor, and the horizontal shaft motor operates to make the rearview mirror main body rotate around the horizontal shaft to realize nodding, when the answer is no, the vehicle body signal processing unit sends an electric signal to the vertical shaft motor, and the vertical shaft motor operates to make the rearview mirror main body rotate around the vertical shaft to realize shaking.

[0017] Preferably, the millimeter wave radar module is electrically connected with the vehicle body signal processing unit, for real-time detection of three position parameters of the rear vehicle relative to the vehicle, and transmission of the three position parameters to the vehicle body signal processing unit, the vehicle body signal processing unit calculates the angle adjustment parameter of the movable mirror using a proportional coefficient compensation method and controls the operation of the view driving mechanism to realize the angle adjustment of the movable mirror, thereby facilitating the driver to directly observe the position of the rear vehicle, the three position parameters including a lateral offset coefficient, a longitudinal distance, and a vertical offset amount.

[0018] The lateral offset coefficient is the proportion of the horizontal line connecting the center of the rear vehicle and the rearview mirror of the vehicle deviating from the longitudinal centerline of the vehicle, and the value range is [-0.8, 0.8];

[0019] The longitudinal distance is the straight-line distance between the rearview mirror of the vehicle and the rear vehicle.

[0020] The vertical offset amount is the vertical height difference between the center of the rear vehicle window and the center of the movable mirror of the vehicle.

[0021] Preferably, the specific steps of the vehicle body signal processing unit calculating the angle adjustment parameter of the movable mirror using the proportional coefficient compensation method include:

[0022] S1, defining the reference coordinate system of the movable mirror: taking the geometric center of the movable mirror as the origin, the horizontal direction as the X-axis, the vertical direction as the Z-axis, and the normal direction of the mirror in the initial state as the Y-axis;

[0023] S2, calculating the horizontal direction adjustment angle: based on the correlation between the lateral offset coefficient and the longitudinal distance , introducing a horizontal view angle compensation coefficient , taking the value as 15°, and calculating the horizontal direction adjustment angle using the formula , wherein is the distance correction term, which decreases with the increase of the distance when L≤50m to reduce the angle adjustment amplitude and avoid excessive rotation of the mirror at a long distance, and the positive value indicates that the mirror rotates to the left, and the negative value indicates that the mirror rotates to the right;

[0024] S3, calculating the vertical direction adjustment angle: based on the ratio of the vertical offset amount to the longitudinal distance , introducing a vertical view angle coefficient , taking the value as 8° / m, and calculating the vertical direction adjustment angle using the formula , wherein is positive, is positive, and the mirror rotates upward, and when is negative, is negative, and the mirror rotates downward.

[0025] Preferably, in the above S2, The value range is [-12°, 12°]. If the calculated value is... If the value is outside the range, the limit or boundary value will be used.

[0026] In S3 above, The value range of is [-8°, 8°]. If the calculated value is... If the value is outside the range, the limit boundary value will be used.

[0027] Preferably, when the longitudinal distance L of the vehicle behind is greater than 50m, the horizontal adjustment angle will be adjusted. Corrected to ±3°, vertical adjustment angle The correction is set to ±2° to avoid visual field jitter caused by lens fine-tuning at long distances, ensuring observation stability.

[0028] Preferably, the viewing drive mechanism includes a horizontal viewing motor, a vertical viewing motor, and a viewing transmission assembly;

[0029] Both the horizontal and vertical viewing motors are servo motors and have angle feedback function, which can transmit the angle of the movable lens to the vehicle body signal processing unit in real time.

[0030] The vision transmission assembly includes a lead screw and a slider.

[0031] Preferably, when the horizontal axis motor operates to make the rearview mirror body rotate around the horizontal axis to achieve a nodding motion, the rotation angle is ±20°.

[0032] Preferably, when the vertical axis motor operates to make the rearview mirror body rotate around the vertical axis to achieve the yaw effect, the rotation angle is ±15°.

[0033] Compared with the prior art, the beneficial effects of the present invention are:

[0034] 1. This invention generates an answer containing "yes / no". When the answer is "yes", the horizontal axis motor drives the rearview mirror body to nod around the horizontal axis; when the answer is "no", the vertical axis motor drives the rearview mirror body to shake around the vertical axis. Throughout the process, the user does not need to look down or reach out to operate, nor does he need to deviate from the driver's field of vision. He can obtain intuitive action feedback simply through voice, which greatly reduces the probability of driver distraction. At the same time, the "nodding / shaking" feedback does not require the user to focus on listening to the voice answer, further reducing driving interference and improving driving safety.

[0035] 2. This invention achieves closed-loop control of "detection-calculation-adjustment-feedback" by automatically adjusting the horizontal and vertical angles of the movable lens, so that drivers can directly and accurately observe the position of vehicles behind without manually adjusting the rearview mirror or turning their heads, reducing the range of driving movements and lowering the risk of distraction.

[0036] 3、The present application reduces the adjustment range when the rear vehicle is at a long distance, avoids the shaking of the field of view caused by the over-fine adjustment of the movable lens, ensures the observation stability, balances the precise adjustment at a short distance and the stable field of view at a long distance, and further improves the driving safety and comfort. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 It is a schematic diagram of the architecture of the rearview mirror.

[0038] Figure 2 It is a schematic diagram of the architecture of the rearview mirror body.

[0039] Figure 3 It is a schematic diagram of the architecture of the interactive transmission assembly.

[0040] Figure 4 It is a schematic diagram of the architecture of the voice interaction module.

[0041] Figure 5 It is a schematic diagram of the architecture of the double-lens assembly.

[0042] Figure 6 It is a schematic diagram of the architecture of the object driving mechanism.

[0043] Figure 7 It is a schematic diagram of the architecture of the object transmission assembly.

[0044] Figure 8 It is a schematic diagram of the interaction principle of the rearview mirror body.

[0045] Figure 9 It is a schematic diagram of the adjustment method flow of the angle of the movable lens.

[0046] Figure 10 It is a calculation principle diagram of the angle of the movable lens. DETAILED DESCRIPTION

[0047] Embodiment one

[0048] This embodiment aims to solve the problem that the current voice feedback is easily disturbed and the screen interaction requires shifting the line of sight, which has gradually failed to meet the real-time, safe and seamless interaction requirements in the intelligent networked vehicle scenario. A rearview mirror with an interactive function is proposed, which includes a rearview mirror body and a voice interaction module. The voice interaction module is integrated inside the rearview mirror body to form an integrated functional structure.

[0049] Among them:

[0050] The rearview mirror body is also provided with an interactive driving mechanism, which includes a horizontal shaft motor, a vertical shaft motor and an interactive transmission assembly.

[0051] The horizontal shaft motor and the vertical shaft motor are electrically connected with the vehicle body signal processing unit respectively, the interactive transmission assembly is composed of a gear set and a rotating shaft, the horizontal shaft motor is used to drive the rearview mirror body to rotate around the horizontal shaft through the interactive transmission assembly, and the vertical shaft motor is used to drive the rearview mirror body to rotate around the vertical shaft through the interactive transmission assembly.

[0052] The voice interaction module is composed of a microphone and the vehicle body signal processing unit.

[0053] The microphone is arranged in the rearview mirror body and is used to receive a user voice question and convert a sound signal into an electric signal.

[0054] The vehicle body signal processing unit is electrically connected with the vehicle system and the microphone respectively, is used to transmit the electric signal converted by the microphone to the vehicle system, analyzes the question by the vehicle system, generates an answer containing yes or no, and transmits the answer back to the vehicle body signal processing unit, when the answer is yes, the vehicle body signal processing unit sends an electric signal to the horizontal shaft motor, the horizontal shaft motor is operated to make the rearview mirror body rotate around the horizontal shaft to realize nodding, and when the answer is no, the vehicle body signal processing unit sends an electric signal to the vertical shaft motor, the vertical shaft motor is operated to make the rearview mirror body rotate around the vertical shaft to realize shaking.

[0055] In the embodiment, the voice interaction module is integrated in the rearview mirror body, and the interactive driving mechanism composed of the horizontal shaft motor, the vertical shaft motor, the gear set and the rotating shaft is matched to form an integrated functional structure, so that the problem that a user needs to manually operate or shift the line of sight to operate the vehicle-mounted device and increase the risk of driving attention dispersion is effectively solved.

[0056] The working process is that the microphone receives a user voice question and converts it into an electric signal, the electric signal is transmitted to the vehicle system by the vehicle body signal processing unit, an answer containing yes or no is generated by the vehicle system, when the answer is yes, the horizontal shaft motor drives the rearview mirror body to nod around the horizontal shaft, and when the answer is no, the vertical shaft motor drives the rearview mirror body to shake around the vertical shaft, the user does not need to bend down or stretch out to operate, does not need to deviate from the front driving field of view, and can obtain intuitive motion feedback only by voice, so that the probability of driving attention dispersion is greatly reduced, the feedback form of nodding / shaking does not need the user to focus on listening to the voice answer, driving interference is further reduced, and driving safety is improved.

[0057] Embodiment two

[0058] The embodiment is basically the same as embodiment one, but the difference is that, in the embodiment, when the horizontal shaft motor is operated to make the rearview mirror body rotate around the horizontal shaft to realize nodding, the rotating angle is ±20°.

[0059] When the vertical shaft motor is operated to make the rearview mirror body rotate around the vertical shaft to realize shaking, the rotating angle is ±15°.

[0060] The embodiment limits the rotation angle of the rearview mirror body, and specifically, the rotation angle of the rearview mirror body driven by the horizontal-axis motor to realize nodding around the horizontal axis is ±20°, and the rotation angle of the rearview mirror body driven by the vertical-axis motor to realize shaking around the vertical axis is ±15°, which prevents the user from clearly perceiving the feedback action due to too small angle, ensures the clarity and intuitiveness of the interactive feedback, and reduces the impact of the mechanical parts on the vehicle body due to excessive rotation.

[0061] Embodiment Three

[0062] The embodiment is basically the same as Embodiment One, except that the embodiment adds a millimeter wave radar module and a double-lens assembly on the basis of Embodiment One.

[0063] The voice interaction module, the millimeter wave radar module, and the double-lens assembly are integrated inside the rearview mirror body to form an integrated functional structure.

[0064] Among them:

[0065] The double-lens assembly includes a fixed lens and a movable lens.

[0066] The fixed lens is embedded on one side of the viewing area of the rearview mirror body, and has a fixed angle, which is used to provide a regular rear basic field of view.

[0067] The movable lens is embedded on the other side of the viewing area of the rearview mirror body, and has a viewing driving mechanism connected to the side away from the viewing surface, which is used to realize angle rotation under the driving of the viewing driving mechanism, and is used to realize direct observation of the position of the rear vehicle by the driver.

[0068] The viewing driving mechanism includes a horizontal viewing motor, a vertical viewing motor, and a viewing transmission assembly.

[0069] The horizontal viewing motor and the vertical viewing motor are both servo motors, and have angle feedback function, which can transmit the angle of the movable lens to the vehicle body signal processing unit in real time.

[0070] The viewing transmission assembly includes a lead screw and a sliding block.

[0071] The millimeter wave radar module is electrically connected with the vehicle body signal processing unit, which is used to detect three position parameters of the rear vehicle relative to the vehicle in real time, and transmit the three position parameters to the vehicle body signal processing unit, and the vehicle body signal processing unit calculates the angle adjustment parameter of the movable lens by using the proportional coefficient compensation method and controls the operation of the viewing driving mechanism to realize the angle adjustment of the movable lens, so as to facilitate the direct observation of the position of the rear vehicle by the driver, and the three position parameters include lateral offset coefficient, longitudinal distance, and vertical offset amount.

[0072] The lateral offset coefficient is the proportion of the horizontal line connecting the center of the rear vehicle and the rearview mirror of the vehicle deviating from the longitudinal centerline of the vehicle, and the value range is [-0.8, 0.8];

[0073] The longitudinal distance is the straight-line distance between the rearview mirror of the vehicle and the rear vehicle;

[0074] The vertical offset is the vertical height difference between the center of the rear vehicle window and the center of the movable mirror of the vehicle;

[0075] Wherein:

[0076] The specific steps of the body signal processing unit for calculating the angle adjustment parameter of the movable mirror include:

[0077] S1, defining the reference coordinate system of the movable mirror: taking the geometric center of the movable mirror as the origin, the horizontal direction as the X-axis, the vertical direction as the Z-axis, and the normal direction of the mirror in the initial state as the Y-axis;

[0078] S2, calculating the horizontal adjustment angle: based on the correlation between the lateral offset coefficient and the longitudinal distance , introducing a horizontal viewing angle compensation coefficient , the value of which is 15°, and calculating the horizontal adjustment angle by the formula , wherein is a distance correction term, which decreases with the increase of the distance when L≤50m to reduce the angle adjustment amplitude and avoid excessive rotation of the mirror at a long distance, the value range of which is [-12°, 12°], a positive value indicating that the mirror rotates to the left, and a negative value indicating that the mirror rotates to the right, if the calculated exceeds the range, the limit boundary value is taken;

[0079] S3, calculating the vertical adjustment angle: based on the ratio of the vertical offset to the longitudinal distance , introducing a vertical viewing angle coefficient , the value of which is 8° / m, and calculating the vertical adjustment angle by the formula , wherein the value range of which is [-8°, 8°], when is positive, is positive, and the mirror rotates upward, when is negative, is negative, and the mirror rotates downward, if the calculated exceeds the range, the limit boundary value is taken;

[0080] In this embodiment, it should be noted that when the longitudinal distance L of the rear vehicle is greater than 50m, the horizontal adjustment angle is corrected to ±3°, and the vertical adjustment angle Corrected to ±2°, avoid long distance lens fine adjustment caused by field of view jitter, ensure the stability of observation.

[0081] The embodiment adds a millimeter wave radar module and a double-lens assembly and integrates the voice interaction module in the rearview mirror main body to form an integrated structure with more comprehensive functions, which significantly improves the comprehensive practicability and driving assistance capability of the rearview mirror main body.

[0082] The fixed lens of the double-lens assembly is embedded on one side of the viewing area of the rearview mirror main body, and the angle is fixed, which provides a stable regular rear basic field of view for the driver and meets the basic observation requirements of daily driving.

[0083] The movable lens is connected to the viewing driving mechanism composed of a horizontal viewing motor, a vertical viewing motor and a screw and a sliding block, which can realize accurate rotation. The millimeter wave radar module detects the lateral offset coefficient, longitudinal distance and vertical offset amount of the rear vehicle relative to the vehicle in real time and transmits them to the vehicle body signal processing unit. The vehicle body signal processing unit adopts a proportional coefficient compensation method, combines the horizontal viewing angle compensation coefficient, the vertical viewing angle coefficient and the distance correction term to calculate the adjustment angle of the movable lens in the horizontal and vertical directions. The viewing driving mechanism composed of the horizontal viewing motor, the vertical viewing motor and the screw and the sliding block adjusts the angle of the movable lens according to the calculated adjustment angle of the movable lens in the horizontal and vertical directions, realizes the "detection-calculation-adjustment-feedback" closed-loop control, so that the driver can directly and accurately observe the position of the rear vehicle without manually adjusting the rearview mirror main body or turning the head, reduces the driving action amplitude and reduces the risk of attention distraction. At the same time, when the rear vehicle is at a long distance (longitudinal distance L>50m), the adjustment amplitude is reduced, which avoids the jitter of the field of view caused by excessive fine adjustment of the movable lens, ensures the stability of observation, balances the accurate adjustment at a short distance and the stability of the field of view at a long distance, and further improves the driving safety and comfort.

[0084] The embodiments of the present application are preferred embodiments, but are not limited thereto. Those skilled in the art can easily understand the spirit of the present application according to the above embodiments and make different inferences and changes, as long as they do not deviate from the spirit of the present application, which are within the protection scope of the present application.

Claims

1. A rearview mirror with interactive functions, characterized in that, The rearview mirror includes a main body, a voice interaction module, a millimeter-wave radar module, and a dual-lens assembly. The voice interaction module, the millimeter-wave radar module, and the dual-lens assembly are all integrated inside the main body of the rearview mirror to form an integrated functional structure. The dual-lens assembly includes a fixed lens and a movable lens. The fixed lens is embedded in one side of the viewing area of ​​the rearview mirror body, with a fixed angle, and is used to provide a normal rear basic field of vision; The movable lens is embedded on the other side of the viewing area of ​​the rearview mirror body. The side away from the viewing surface is connected to a viewing drive mechanism. Under the drive of the viewing drive mechanism, the lens can rotate at an angle to enable the driver to directly observe the position of the vehicle behind. The voice interaction module consists of a microphone and a vehicle signal processing unit; The millimeter-wave radar module is electrically connected to the vehicle body signal processing unit and is used to detect three position parameters of the vehicle behind it relative to the vehicle in real time. The three position parameters are then transmitted to the vehicle body signal processing unit. The vehicle body signal processing unit uses a proportional coefficient compensation method to calculate the angle adjustment parameters of the movable lens and controls the operation of the vision drive mechanism to adjust the angle of the movable lens, thereby facilitating the driver to directly observe the position of the vehicle behind.

2. A rearview mirror with interactive function according to claim 1, characterized in that, The rearview mirror body is also provided with an interactive drive mechanism, which includes a horizontal axis motor, a vertical axis motor and an interactive transmission component. The horizontal axis motor and the vertical axis motor are electrically connected to the vehicle body signal processing unit, respectively. The interactive transmission component consists of a gear set and a rotating shaft. The horizontal axis motor is used to drive the rearview mirror body to rotate around the horizontal axis through the interactive transmission component, and the vertical axis motor is used to drive the rearview mirror body to rotate around the vertical axis through the interactive transmission component.

3. A rearview mirror with interactive function according to claim 2, characterized in that, The microphone is installed inside the rearview mirror body and is used to receive user voice questions and convert sound signals into electrical signals; The vehicle signal processing unit is electrically connected to both the vehicle infotainment system and the microphone. It transmits the electrical signals converted by the microphone to the vehicle infotainment system, which analyzes the question, generates a yes or no answer, and transmits the answer back to the vehicle signal processing unit. When the answer is yes, the vehicle signal processing unit sends an electrical signal to the horizontal axis motor, which causes the rearview mirror to rotate around the horizontal axis to achieve a nodding motion. When the answer is no, the vehicle signal processing unit sends an electrical signal to the vertical axis motor, which causes the rearview mirror to rotate around the vertical axis to achieve a shaking motion.

4. A rearview mirror with interactive function according to claim 1, characterized in that, The three positional parameters include the lateral offset coefficient, longitudinal distance, and vertical offset. The lateral offset coefficient is the proportion by which the line connecting the center of the rear vehicle and the horizontal line of the rearview mirror of this vehicle deviates from the longitudinal centerline of this vehicle, and its value ranges from [-0.8, 0.8]. Longitudinal distance is the straight-line distance between the rearview mirror of this vehicle and the vehicle behind it; The vertical offset is the vertical height difference between the center of the rear vehicle's window and the center of the movable lens of this vehicle.

5. A rearview mirror with interactive function according to claim 1, characterized in that, The specific steps by which the vehicle signal processing unit calculates the angle adjustment parameters of the movable lens using the proportional coefficient compensation method include: S1. Define the reference coordinate system of the movable lens: with the geometric center of the movable lens as the origin, the horizontal direction as the X-axis, the vertical direction as the Z-axis, and the normal direction of the lens in its initial state as the Y-axis. S2. Calculate the horizontal adjustment angle: based on the lateral offset coefficient. Longitudinal distance The correlation is used to introduce a horizontal viewpoint compensation coefficient. The value is 15°, and the formula is used. Calculate the horizontal adjustment angle, where, This is a distance correction term. When L≤50m, the correction term decreases as the distance increases to reduce the angle adjustment range and avoid excessive rotation of the lens at long distances. A positive value indicates that the lens rotates to the left, and a negative value indicates that it rotates to the right. S3. Calculate the vertical adjustment angle: based on the vertical offset. Longitudinal distance The ratio of the vertical viewing angle coefficient is introduced. The value is taken as 8° / m, using the formula Calculate the vertical adjustment angle when When it is the correct time, To be positive, rotate the lens upwards. When it is negative, If the value is negative, the lens rotates downwards.

6. A rearview mirror with interactive function according to claim 5, characterized in that, In S2 above, The value range is [-12°, 12°]. If the calculated value is... If the value is outside the range, the limit boundary value will be used. In S3 above, The value range of is [-8°, 8°]. If the calculated value is... If the value is outside the range, the limit boundary value will be used.

7. A rearview mirror with interactive function according to claim 5, characterized in that, When the longitudinal distance L of the vehicle behind is greater than 50m, the horizontal adjustment angle will be adjusted. Corrected to ±3°, vertical adjustment angle The correction is set to ±2° to avoid visual field jitter caused by lens fine-tuning at long distances, ensuring observation stability.

8. A rearview mirror with interactive function according to claim 3, characterized in that, The vision drive mechanism includes a horizontal vision motor, a vertical vision motor, and a vision transmission assembly; Both the horizontal and vertical viewing motors are servo motors and have angle feedback function, which can transmit the angle of the movable lens to the vehicle body signal processing unit in real time. The vision transmission assembly includes a lead screw and a slider.

9. A rearview mirror with interactive function according to claim 3, characterized in that, The operation of the horizontal axis motor causes the rearview mirror body to rotate around the horizontal axis to achieve a nodding motion, with a rotation angle of ±20°.

10. A rearview mirror with interactive function according to claim 3, characterized in that, When the vertical axis motor operates, the rearview mirror body rotates around the vertical axis to achieve the head-shaking effect, with a rotation angle of ±15°.

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