WO2001076910A1

WO2001076910A1 - Automatic scan device for vehicle rearview mirror

Info

Publication number: WO2001076910A1
Application number: PCT/CN2001/000130
Authority: WO
Inventors: Tzung-Iang Suen
Original assignee: Suen Tzung Iang
Priority date: 2000-04-05
Filing date: 2001-02-19
Publication date: 2001-10-18
Also published as: AU3909101A; CN2415983Y

Abstract

This invention discloses an automatic scan device for vehicle rearview mirror. The device comprises a control circuit (4) disposed in serial with a circuit of the original power rearview mirror. The circuit (4) includes: an input line (41) for receiving signal from control terminal, the input line (41) is connected to a driver (43) via a microprocessor (42); a relay (44) for receiving the signal from the driver (43), at the same time, the relay is connected to the terminal of manual switch (10). In this way, the signal from manual switch (10) or the driver (43) controls the angle-adjusting motor of the power rearview mirror via the relay (44).

Description

Automatic scanning device for automobile rearview mirror

The utility model relates to an automatic scanning device for a car's rear-view mirror, and in particular to a control of a sensor element, a left and right direction signal of a car, and a far / near beam signal to make the car's rear-view mirror travel with the car. The conditions of the road section are automatically scanned up, down or left and right to achieve a wide-angle field of view.

There are two rear-view mirrors in the car, one for indoor rear-view mirrors, and the other for rear-view mirrors on both outer sides of the car; the former is intended to detect the coming of the vehicle when the vehicle is moving straight; the latter is intended to serve as A tool for detecting external conditions when a vehicle changes course.

The disadvantage of common rearview mirrors of vehicles is that the dead angle is too large, which often causes many accidents, especially when the vehicle is going straight on a relatively clear road, and the turning angle is too small and the outside vehicle cannot see it. Death and injury caused by impact, the wider the lane, the more common situation; otherwise, a convex mirror is added to the outermost or other parts of the mirror surface to make it have a larger field of view, but it causes the car to drive The crew cannot accurately grasp the distance to the car, so the effect of the convex mirror is also not ideal, and it will cause visual disturbance in fatigue or long distances or at night, resulting in dizzy results. Therefore, in the statistics of various types of traffic accidents, accidental collisions on both sides of the vehicle are the main cause of automobile accidents. It can be seen that the above-mentioned common items still have many shortcomings, which is not a good design and needs to be improved.

In view of the various shortcomings derived from the above-mentioned common automobile rearview mirrors, the applicant in this case has been eager to improve and innovate. After years of painstaking and meticulous research, he finally successfully developed this autoscanning rearview mirror automatic scanning device.

The purpose of the present utility model is to provide a control by a sensing element, so that when a car is driving on an uphill or downhill road, the rearview mirror of the car can move up or down along with the road on which the car is driving, so as to increase the driver's mobility on the road. Auto-scanning device for rear-view car mirror with downhill wide-angle field of view.

A secondary object of the present invention is to provide a left / right direction signal control of a car, so that when the car wants to change lanes or drive on the road from the roadside, the cars on both sides of the car are photographed with rearview mirrors and cars. The auto-mirror auto-scanning device for rear-view mirrors will move at an angle to increase the left / right wide-angle field of view.

Another object of the present invention is to provide a method that can also use the principle of centrifugal force to make the rearview mirrors on both sides of the car and inside the car automatically move an angle with the direction of the car to increase the left / right rear wide-angle auto rearview mirror auto Scanning device.

The auto-mirror automatic scanning device for accomplishing the above-mentioned purpose firstly separates a manual control switch connected to the electric rear-view circuit of the original car from the electric rear-view mirror circuit, and then separates the control circuit of the utility model from the original car The electric rear-view mirror circuits are connected in series with each other, and the manual control switch is also connected in series with the control circuit of the utility model. The control circuit mainly includes an input line, a microprocessor, a driver, and a relay controller; The processor is connected and can receive the signal from the control end, so that the signal can be sent to the microprocessor through the input line to identify the signal, and then sent to the driver for amplification, and then to the relay controller. The relay controller is provided with a number of wiring terminals for connecting the wiring terminals of the manual control switch and the wiring terminals on the electric rearview mirror circuit of the original vehicle, so that the relay controller can receive signals from the driver, and It can receive the signal from the manual control switch to control the left / right rearview mirror of the car to move left and right or up and down, and this relay controller is in After receiving the signal from the driver, the inner and connected to the manual switch contacts will escape, not controlled by the manual switch. Such a circuit design can make the hand-operated switches of the electric rear-view mirror of the original vehicle in series to achieve the control circuit of the rear-view mirror to move up, down or left and right, and when the signal stops, the electric rear-view mirror returns to the original The location of the starting point without affecting the purpose of the original car design.

Compared with other commonly used technologies, the automatic scanning device for automobile rearview mirror provided by the utility model has the following advantages:

1. The utility model is provided with a sensing element in the vehicle body, so that when the car is driving on uphill and downhill sections, the rearview mirror of the car can automatically move up or down at an angle with the road section of the car to increase the driver Wide-angle view on up / downhill sections. 2. The utility model is provided with a sensing element in the vehicle body, so that when the car is driving on a curved road section, the rear-view mirrors and the rear-view mirrors on both sides of the car can automatically move to the left / right with the direction of the car. Act at an angle to increase the driver's left / right rear wide-angle field of view.

3. The utility model can also use the signal of the left / right direction indicator of the car to control the rear-view mirrors and interior rear-view mirrors of the car to move left / right by an angle according to the received signals to increase the left / right. Auto wide-angle field of view auto scanning device for rear-view mirrors.

Please refer to the following detailed description of a preferred embodiment of the present invention and the accompanying drawings to further understand the technical content of the present invention and its purpose and effect. The attached drawings of this embodiment are:

Figure 1 is an internal circuit diagram of an electric rear-view mirror used by a general vehicle;

FIG. 2A is a schematic diagram of disconnection of a hand-operated switch of a general electric rear-view mirror circuit; FIG. 2B is a schematic circuit diagram of a control circuit for installing the utility model;

FIG. 3 is a schematic diagram showing the connection between the interior mirror and the motor of the auto rearview mirror automatic scanning device of the present utility model;

FIG. 4 is a diagram of a first embodiment of an automatic scanning device for an automobile rear-view mirror; FIG. 5 is a signal waveform diagram of an automatic scanning device for an automobile rear-view mirror;

6A and 6B are flowcharts of the first embodiment of the automatic scanning device for the rear-view mirror of the utility model; FIG. 7 is a diagram of the second embodiment of the automatic scanning device for the rear-view mirror of the automobile according to the present invention; Full flowchart of the second embodiment of the mirror automatic scanning device;

9A, B, and C are one of the application schematic diagrams of the first embodiment of the auto scanning device for the auto rear-view mirror of the utility model;

10A, B, and C are the second application schematic diagrams of the first embodiment of the auto scanning device for the auto rear-view mirror of the utility model;

FIG. 11 is a diagram of a third embodiment of an automatic scanning device for an automobile rear-view mirror; 12 is a flowchart of a third embodiment of an automatic scanning device for a car's rear-view mirror; FIGS. 13A and 13B are one of application diagrams of a third embodiment of an automatic scanning device for a car's rear-view mirror;

Figs. 14A and 14B are the second application schematic diagrams of the third embodiment of the auto scanning device for the auto rear-view mirror of the utility model.

In the figure, 10 is a manual control switch, 11 is a terminal, 12 is a terminal, 13 is a terminal, 14 is a terminal, 2 is a left rearview mirror, 20 is a car, 21 is a left / right control motor, and 22 is Up / down control motor, 3- for right-view mirror, 31 for left / right control motor, 32 for up / down control motor, 4 for control circuit, 41 for input circuit, 42 for microprocessor, 43 for driver, 44 Is a relay controller, 441 is a connection terminal, 442 is a connection terminal, 443 is a connection terminal, 444 is a connection terminal, 445 is a connection terminal, 5 is an interior mirror of a car, 51 is a top, 52 is a motor, 6 is a sensor 61b is a grating plate, 61a is a grating plate, 62b is a weight, 62a is a weight, 63b is a holding portion, 63a is a holding portion, 64b is an infrared interrupter, 64a is an infrared interrupter, and 611 is a grating hole 65b is a bump, 65a is a bump, 66 is a switch, 7 is a decoding circuit, 8 is a sensing element, 81 is a grating plate, 811 is a grid hole, 82 is an infrared interrupter, and 83 is a heavy hammer.

The preferred embodiment of the present invention,

Please refer to FIG. 1, which is an internal circuit diagram of an electric rear-view mirror used in a general vehicle, which mainly includes a manual control switch 10, which is provided with connection terminals 11 and 12; a left rear-view mirror 2, which There are up / down control motors 22 and left / right control motors 21; right rearview mirror 3, which has up / down control motors 32 and left / right control motors 31 _; and a battery V +.

In order not to affect the original circuit design of the vehicle, the control circuit used in the present utility model is designed in series with the original vehicle. First, the wires 13 and 14 connected to the terminals 11 and 12 of the manual control switch on the vehicle are separated, as shown in FIG. 2A. After the separation, the control circuit 4 of the present invention is installed, as shown in FIG. 2B. The control circuit 4 of the present invention mainly includes an input line 41, a microprocessor 42, a driver 43, and a relay controller 44. The input line 41 is connected to the microprocessor 42 and can receive signals from the control terminal, so that The signal can be sent to the microprocessor 42 through the input line 41 to identify the source of the signal, and then transmitted to the driver 43 for amplification, and then sent to the relay controller 44. The relay controller 44 is provided with digital wiring. Terminals 441, 442, 443, 444, and 445, among which connection terminals 441, 442, 443, and 444 are respectively connected to connection terminals 11, 12 and 13 and 14 on the manual switch 10, and connection terminal 445 is It is connected to the motor 52 on the interior mirror 5 so that the relay controller 44 can receive signals from the driver 43 and can receive signals from the manual switch 10 to control the left / right rear of the car. The mirrors 2 and 3 and the rearview mirror 5 of the vehicle perform left, right, or up and down movements, and after the relay controller 44 receives a signal from the driver 43, the relay controller 44 is connected to the manual switch 10 inside. The contacts will fall off and be uncontrolled by hand Off 10 controls.

As shown in FIG. 3, a motor 52 is fixedly connected to the top end 51 of the rearview mirror 5 of the car, and the motor 52 is connected to the control circuit 4, so that the control circuit 4 of the present invention can control the forward and reverse rotation of the motor 52, and then drive The interior mirror 5 moves.

Please refer to FIG. 4, which is a schematic diagram of a first embodiment of the present invention, which is to connect the contact a on the input line to the signal of the left direction light; contact b to the signal of the right direction light; contact c, The high / low beam signal connected to the headlight; and, the contact d is connected to the wiper control signal; the power of the control circuit 4 is supplied by the battery V +; in order to achieve the purpose of automatic scanning of the rearview mirror, the utility model uses a pulse The control of the wave signal enables the electric rearview mirrors 2, 3 and the rearview mirror 5 of the car to perform up and down, left, and right continuous movements; as shown in FIG. 5, which is a signal waveform diagram of the present utility model. It mainly controls the length of the delay time T, and controls the speed of the action of the electric rear-view mirrors 2, 3 and the interior mirror 5.

When the contact a receives the signal from the left direction light, the signal enters the microprocessor 42 for interpretation. At this time, the pulse signal is positive and sent to the driver 43 for amplification through the line. Finally, Drive the left / right control motor 21 on the left side of the car and the motor 52 at the top of the rearview mirror 5 to make the left rearview mirror 2 and the rearview mirror 5 perform an outward angle; and because of the contact a Continuously receiving the signal from the left direction light, the microprocessor 42 outputs a negative pulse signal to the driver 43 after a delay time T, and changes the left / right control motors 21 and 2 of the left rearview mirror 2 The direction of movement of the top motor 52 of the rearview mirror 5 makes the left rearview mirror and the rearview mirror 5 make an inward closing action at the same angle as when the action is carried out; therefore, when the contact a continues to receive the left direction light When the signal is controlled by the microprocessor 42, the rear-view mirror surface 2 on the left side of the car and the rear-view mirror 5 on the car side can be continuously scanned left and right.

When the left rearview mirror 2 and the timely rearview mirror 5 make a back-and-forth motion, the user can adjust the frequency of the back-and-forth motion of the rear-view mirror by the wiper lever. Finally, when the user's left turn signal is suspended, the microprocessor 42 stops functioning and returns the left rearview mirror to its original position.

Similarly, when the user operates the right direction light, the contact b of the control circuit 4 receives this signal and sends it to the micro-processing 42 for interpretation, and finally drives the right rear-view mirror surface 3 and the interior mirror 5 of the car to the left. Right and left movements; At this time, the user can also use the wiper lever to adjust the speed of the right and rear mirror 3 movement frequency (meaning the length of the delay time).

After the microprocessor 42 determines that the signal of the direction light is received, the microprocessor 42 will generate a pulse wave signal, and the signal can control the pulse wave width of the pulse wave signal through the wiper lever.

(Ie, fast and slow action); when the microprocessor 42 determines that the signal is from the left turn signal, it drives the left / right control motor 21 of the left rear-view mirror 2 and the top motor 52 of the interior mirror 5 to act, Make the left rearview mirror 2 and the interior mirror 5 make back and forth movements according to the density of the above-mentioned pulse wave signal

(That is, the left rear-view mirror has fast and slow movements). The operation principle of the right rearview mirror 3 is the same as that of the left rearview mirror 2.

When contact C receives the signal from the high / low beam, the signal enters the microprocessor 42 to determine Read, at this time, the pulse signal is positive, and is sent to the driver 43 for amplification via the line. Finally, the left and right up / down control motors 22 and 32 are driven to make the left and right rear-view mirror surfaces 2 and 3 simultaneously. Perform the action to the next angle; and because the contact C continues to receive the signal from the high / low beam, the microprocessor 42 outputs a negative pulse signal to the driver 43 after a delay time T, thereby changing the left The direction of action of the up / down control motors 21 and 31 of the right and right rearview mirrors 2 and 3 makes the left and right rearview mirrors 2 and 3 make a returning action at the same angle as when they are moving downwards; therefore, when the contact C continues When the signals from the high and low beam are received, the microprocessor 42 can control the left and right rear-view mirror surfaces 2 and 3 of the vehicle to perform continuous and up-and-down scanning.

When the left and right rearview mirrors 2 and 3 are moved up and down, the user can adjust the length of the left and right rearview mirrors 2 and 3 by the wiper lever. Finally, when the user's high / low beam signal is suspended, the microprocessor 42 stops functioning and returns the left and right rearview mirrors 2 and 3 to their original positions. Therefore, when the microprocessor 42 determines that the far / After the signal of the low beam, the microprocessor 42 will generate a pulse wave signal, and the signal can control the pulse wave width (ie, fast or slow) of the pulse wave signal through the wiper lever; when the microprocessor 42 When it is determined that the signal is from the high and low beams, the up / down control motors 22 and 32 of the left and right rear-view mirror surfaces 2 and 3 are driven, so that the left and right rear-view mirror surfaces 2 and 3 are in accordance with the above pulse signal. Density moves back and forth (that is, the phenomenon of up and down movement of the rear view mirror surface is fast and slow).

Please refer to FIG. 6A and FIG. B, which are flowcharts of the present invention. When the power is turned on, the electric rear-view mirror is switched to the automatic mode 101, and it is determined whether the signal 102 of the direction light is received. If so, then Call the pulse wave generation subroutine 103 to generate the pulse wave signal 201, and determine whether the wiper signal 202 is measured. If it is, increase the speed 203. If not, proceed to the slow speed 204; then determine whether the right direction light is measured. Signal 104, if yes, drive the left and right motors of the right rearview mirror and the top motor of the rearview mirror to make the right rearview mirror and the rearview mirror swing about 106 with the pulse width; if the right direction is not measured Light signal The left and right motors of the left rearview mirror and the top motor of the rearview mirror are moved, so that the left rearview mirror and the rearview mirror are swung left and right 105 with the pulse width. When the direction light signal is not measured 102, it will determine whether the far / near light signal 107 is measured. If so, the pulse wave generating subroutine 108 is called to generate the pulse wave signal 201, and it is determined whether the wiper signal 202 is input. If yes, then speed up 203, if not, go to slow speed 204, and drive the left and right rearview mirror up and down control motors to move the left and right rearview mirrors up and down 109 according to the pulse width.

Please refer to FIG. 7 again, which is a diagram of the second embodiment of the present utility model. In addition to the left / right direction signal control of the automobile, the utility model can also control the automobile / left and right rear-view mirrors 2 by sensing elements 6. 3 action, a switch 66 is provided between the contact point e and contact point f on the input 41 and the output end of the sensing element 6; when the sensing element 6 is used to drive the rearview mirror of the car, the switch only needs to be turned ON State, and connect the wiper signal to the contact d; the sensing element 6 includes two grating plates 61a, 61b and two infrared interrupters 64a, 64b, which are fixed with weights 62a, 62b, and the infrared interrupter 64a. And 64b are fixed in the vehicle body, and the grating plates 61a and 61b to which the weights 62a and 62b are fixed are connected to a shaft in the vehicle body and can be moved on the shaft and are connected to the two grating plates 61a and 61b. A grid hole 611 is provided at the periphery of the gate so that the receiving ends of the interrupters 64a and 64b can continuously receive the signal sent by the transmitting end through the grid hole 611, and a blocking portion 63b is provided to the right of the weight 62b. To prevent the weight 62b from shifting to the right, the other weight 62a is set to the left There is a retaining portion 63a to prevent the weight 62a from shifting to the left. When the car is driving on the right curve, a centrifugal force will be generated, causing the weight 62b to be shifted to the left by the centrifugal force and drive the grating. The slice 61b is turned to the left, which causes the signal sent by the transmitting end of the interrupter 64b to be blocked by the grating plate 61b, making it impossible for the receiving end to continuously receive the signal transmitted by the transmitting end, thereby generating a timing signal and the signal The signal is sent to the decoding circuit 7. The decoding circuit 7 converts the signal into a recognizable signal, and then sends it to the microprocessor 42 via the input line 41 for interpretation. After being amplified by the driver 43, the signal is sent to the relay control. Device 44 to drive the left and right control motors 31 of the right rearview mirror 3 and the interior mirror top The end motor 52 moves, causing the right rearview mirror 3 and the interior mirror 5 to move to an angle to the right to increase the wide-angle field of vision of the driver's right rear. On the contrary, when the car is driving on the left curve, the weight 62a is It will be shifted to the right, so that the interrupter 64a also generates a signal to drive the left rearview mirror and the rearview mirror of the car to move to an angle to the left to increase the wide-angle field of vision at the left and rear. In order to prevent the weights 62a and 62b from shifting too far, projections 65a65b are provided at appropriate positions in the vehicle body, so that the weights 62a and 62b are restricted to move between the retaining portions 63a and 63b and the projections 65a and 65b; The hydraulic method is adopted to generate a damping to avoid the trouble of the weights 62a and 62b swinging. In addition, in this embodiment, the operating speed of the motor can also be controlled by the wiper control lever.

Please refer to FIG. 8, which is a flowchart of the second embodiment of the present invention. When the power is turned on, it will determine whether the switch is in the on state 301. If not, the electric rearview mirror of the car is in the manual mode 302. If yes, switch the car's electric rear-view mirror to automatic mode 303, and then determine whether the number of grid rotations of the grating when the right turn is measured 304. If yes, start to calculate the angle 306 of the rear-view mirror adjustment, and then drive the right rear-view mirror The left and right control motors in the car and the top motors of the rearview mirror are activated to make the right rearview mirror and the rearview mirror move to the right by an angle of 308; when the number of grids of the right turn grid rotation is not measured 304, Then it will be judged whether the number of grid rotations of the grating when the left turn is measured is 305. If there is, the angle of adjustment of the rear-view mirror is calculated 307, and then the left and right control motors in the left-view mirror are driven and the interior photo is taken. The motor at the top of the mirror is activated, so that the left rearview mirror and the rearview mirror move to the right by an angle of 309.

Please refer to FIG. 9A, B, (: shown, which is a schematic diagram of the first application of the second embodiment of the present invention. When the car 20 is driving on the left curve, the weight 62a will be affected by the centrifugal force and will turn to the right. The shift causes the grating plate 61a to rotate, so that the receiving end of the interrupter 64a is shielded by the grating plate 61a, and generates a timing signal to the decoding circuit 7, which is converted into an identifiable signal by the decoding circuit 7, and then the The signal is sent to the control circuit 4, and the control circuit will drive the left rear-view mirror surface 2 and the rear-view mirror of the car to the left according to the received signal.

Similarly, when the car 20 is driving on the right curve, the control circuit will also receive the signal according to the received signal. The right rear-view mirror surface 3 and the rear-view mirror are driven to move to the right, as shown in FIGS. 10A and 10B.

Please refer to FIG. 11, which is a diagram of a third embodiment of the present invention. In addition to the high / low beam signal control of the headlight of the car, the left / right rear of the car can also be controlled by the sensing element 8. The up and down control motors 22 and 32 in the sight glasses 2 and 3 increase the wide-angle field of view of the car driving on the up / downhill section;

A switch 66 is provided between the contact g and the contact h on the input line 41 and the output end of the sensing element 8. When the sensing element 8 is used to drive the left / right rearview mirror of the car, the switch only needs to be on. That is, the wiper signal is connected to the contact point d. The sensing element 8 includes a grating plate 81 and an infrared interrupter 82 to which a weight 83 is fixed, and a grating hole 811 is provided at a peripheral end of the grating plate 81. So that the transmitting end of the infrared interrupter 82 can pass through the grid hole 811 so that the receiving end can continuously receive the signal transmitted by the transmitting end, and the transmitting end can be a light emitting diode; and the infrared interrupter 82 is fixed On the vehicle body, the grating plate 81 to which the weight 83 is fixed is fitted on the shaft of the vehicle body and is movable on the shaft.

When the car is driving on an uphill or downhill road, the car body will form an angle with the ground plane. Because its weight 83 will be affected by gravity, it will always go down vertically, causing the infrared interrupter 82 and the connection to be heavy. The grating plate 81 of the hammer 83 forms an angle difference, and the generation of the angle difference causes the receiving end of the infrared interrupter 82 to be shielded by the grating plate 81, and then receives a signal that changes in light and darkness, and outputs a signal to the decoding circuit. In 7, the decoding circuit 7 converts the received signal into a recognizable signal, and then transmits the signal to the microprocessor 42 through the input line 41 to judge the source of the signal and generate a pulse. The wave signal is sent to the driver 43. The driver 43 amplifies the received signal and transmits it to the relay controller 44 to drive the up / down control motors 22 in the left rear-view mirror 2 and the right rear-view mirror 3. 32 actions to make the left rear-view mirror surface 2 and the right rear-view mirror surface 3 move upward or downward depending on the driving section at the same time to increase the driver's wide-angle field of vision. In this embodiment, the wiper control lever can also control the running speed of the motor in the electric rear-view mirror. To prevent the weight 83 from swinging as the car moves, Therefore, it is hydraulically damped to cause the weight 83 not to oscillate arbitrarily.

Please refer to FIG. 12, which is a flowchart of a third embodiment of the present invention. When the power is turned on, it is judged whether the switch is in the ON state 401. If not, the power mirror is still in the manual mode 402. If it is, the electric rearview mirror is switched to the automatic mode 403; the microprocessor will start to determine whether it has received the signal of uphill or downhill, and when the signal of uphill 404 is measured, it will start to calculate the left , The right rearview mirror adjusts the angle 406 upward, and drives the up / down control motors in the left and right rearview mirrors to start, so that the rearview mirror adjusts an angle 408 upward; when the downhill signal 405 is measured, the Start to calculate the downward adjustment angle 407 of the left and right rearview mirrors, and drive the up / down control motor in the rearview mirror to start, so that the left and right rearview mirrors move downward 409.

Please refer to FIG. 13A and FIG. 14A and FIG. 14A and B, which are schematic diagrams of the application of the third embodiment of the present invention. The infrared interrupter 82 is fixed in the vehicle body, and the grating plate 81 connected with the weight 83 is It is installed in the shaft in the vehicle body and can be moved on the shaft. In addition, the weight 83 is vertically downward due to the influence of gravity, so when the car 20 is traveling on an uphill road, the car The body will form an angle with the ground plane, resulting in an angle difference between the infrared interrupter 82 and the grating plate 81 connected to the weight 83, so that the signal emitted by the transmitting end of the infrared interrupter 82 is blocked by the grating plate 81 As a result, the signal received by its receiving end is a change of light and dark signals, and then the decoding circuit 7 discriminates the signal, and the control circuit 4 drives the left and right rear-view mirrors 2 and 3 of the car to adjust at the same time. An angle to increase the wide-angle field of view; in contrast, when the car is driving on a downhill section, the rear-view mirror of the car will move down an angle to increase the driver's wide-angle field of view.

The above detailed description is a specific description of a feasible embodiment of the present invention. This embodiment is not intended to limit the patent scope of the present invention. Any equivalent implementation or change that does not depart from the technical spirit of the present invention is Should be included in the patent scope of this case.

Claims

Rights request

1. An automatic scanning device for automobile rearview mirrors, characterized in that the control circuit (4) connected in series with the electric rearview mirror circuit of the original vehicle comprises: an input line (41) capable of receiving a signal from a control terminal, the input line (41) The microprocessor (42) is connected to the driver (43), and the relay controller (44) that can receive the signal from the driver (43) is connected to the terminal of the manual control switch (10); the manual control switch (10) Signal of the driver or driver (43) via relay controller

(44) Directional control motor for car electric rearview mirror.

2. The automatic scanning device for the rearview mirror of a car according to claim 1, characterized in that the input line (41) can be connected to a signal end from a turn signal.

3. The automatic scanning device for automobile rear-view mirrors according to claim 1, characterized in that the input line (41) can be connected to a signal end from a high / low beam light.

4. The automatic scanning device for the rearview mirror of a car according to claim 1, characterized in that the control circuit (4) can be provided with a pulse width control device of a pulse wave signal.

5. The automatic scanning device for the rearview mirror of a car according to claim 1, characterized in that the input line (41) can be connected to a signal terminal from a wiper control lever.

6. The automatic scanning device for the rearview mirror of a car according to claim 1, characterized in that the input line (41) can be connected to a signal terminal from a sensing element.

7. The automatic scanning device for automobile rear-view mirrors according to claim 6, wherein the sensing element comprises a weight, a grating plate, and an infrared interrupter, wherein the weight is fixedly connected to the grating plate.

8. The automatic scanning device for automobile rear-view mirrors according to claim 7, characterized in that the number of weights, grating plates and infrared interrupters in the sensing element can be increased as required.

9. The automatic scanning device for automobile rearview mirror according to claim 1, characterized in that the relay controller (44) is provided with a terminal for manual control switch (10), the electric rearview mirror circuit of the original vehicle and The terminals of the interior mirrors are connected. 10. The automatic scanning device for automobile rearview mirror according to claim 1, characterized in that a motor is fixedly connected to the top end (51) of the rearview mirror (5), and the input end of the motor is connected to the control circuit (10). .

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