CN202445791U - Automatic car window curtain system - Google Patents

Abstract

The utility model relates to an automatic car window curtain system, which comprises a car window outer luminance sensor, a car window inner luminance sensor, a preprocessing circuit, an AD converter, a microcontroller and a motor for controlling the car window curtain. The output end of the sensor and the output end of the luminance sensor in the window are respectively connected to the input end of the AD converter through the preprocessing circuit, the output end of the AD converter is connected to the input end of the microcontroller, and the output end of the microcontroller is connected to the input end of the microcontroller. The driving end of the motor is connected, and the outside and inside of each window are respectively provided with a light brightness sensor outside the window and a light brightness sensor inside the window, and each window curtain is connected with a motor. The utility model can automatically control the opening or closing of the window curtain according to the intensity of light inside and outside the window, no manual operation is needed, and the comfort and safety of driving and riding are improved.

Description

Automatic window curtain system

technical field

The utility model relates to an automobile window curtain, in particular to an automatic vehicle window curtain system.

Background technique

How to make the car intelligent and how to improve the comfort of the car are the main directions of the current research on the car system. At present, the window curtains installed on cars, buses, buses or motor vehicles generally require manual operation to open or close the curtains. Too much light outside the window will irritate people’s eyes, and the light inside the window is too dark. It will affect the line of sight inside the car, and both will reduce the comfort of the car. Therefore, during driving, it is necessary to open or close the windows and curtains with the change of the ambient light outside the car. There is a certain degree of danger in the operation of opening and closing the window, and it also brings a lot of discomfort to the car.

Contents of the invention

The utility model mainly solves the problem that the windows and curtains on the original automobiles and buses generally need to be opened or drawn by manual operation, and there is a certain danger in carrying out this operation when the speed of the vehicle is fast, and it also brings a lot of trouble to the passengers. A lot of uncomfortable technical problems; provide an automatic window curtain system, which can automatically control the opening or closing of the window curtain according to the light intensity inside and outside the window, no longer need manual operation, improve driving and Ride safety and comfort.

The above-mentioned technical problems of the utility model are mainly solved by the following technical solutions: the utility model comprises a light brightness sensor outside a car window, a light brightness sensor inside a car window, a preprocessing circuit, an AD converter, a microcontroller and a control window The motor of the curtain, the output end of the light brightness sensor outside the car window, and the output end of the light brightness sensor inside the car window are respectively connected to the input ends of the respective preprocessing circuits, and the output ends of the preprocessing circuit are connected to the input ends of the AD converter. The output end of the converter is connected with the input end of the microcontroller, and the output end of the microcontroller is connected with the driving end of the motor. The outside of each window is provided with a described light brightness sensor outside the window. The interior is provided with a described light brightness sensor in the vehicle window, and each window curtain is connected with a described motor. The brightness sensor outside the window and the brightness sensor inside the window respectively collect the light intensity signals outside the window and inside the window in real time. These signals are amplified and filtered by the preprocessing circuit and then sent to the AD converter for processing and converted into corresponding digital The signal is sent to the microcontroller for analysis, processing and calculation, and the microcontroller sends a control signal to control the rotation of the motor connected to the window curtain. There are many kinds of connection structures between the motor and the curtain, such as: the rotation of the motor drives the rotation of the small pulley, the small pulley drives the rotation of the large pulley through the synchronous belt, the large pulley drives the bearing with keyway to rotate, and the rotation of the bearing drives the car The rotation of the window curtain roller, so that the curtain is rolled up or down. Of course, other structures can also be used to roll up or put down the curtain, or to move the curtain left and right. Therefore, the utility model can automatically control the opening or closing of the window curtains according to the light intensity inside and outside the car window, and no longer needs manual operation. Comfort, on the other hand, the opening and closing of the windows and curtains does not need to be controlled by manual operation, which improves the safety of driving and riding.

Preferably, the automatic window and curtain system includes a key module, and the key module is connected with the microcontroller. The button module includes buttons corresponding to each window curtain, and the buttons are generally installed on the car door of the window curtain controlled by it. The key signal is input to the microcontroller, and then the microcontroller sends a control signal to control the rotation of the motor connected with the window curtain. By operating the buttons, the opening or closing of the window curtains can also be controlled. Generally, the priority of the button signal is higher than that of the brightness sensor signal, which is convenient for the rider to control the curtain freely.

As preferably, the quantity of described micro-controller is identical with the quantity of car window, promptly every car window is provided with a described micro-controller correspondingly, and every car window curtain is independently connected with a car window external luminance The control system is composed of sensor, window brightness sensor, preprocessing circuit, AD converter, microcontroller and motor. The opening or closing of each window curtain is independently controlled by a control system. Although the number of microcontrollers used is relatively large, the control reliability is high and the maintenance is also convenient.

As preferably, the microcontroller has one, and all the outside light brightness sensors of the car window and the light brightness sensors inside the car window are respectively connected to a plurality of input terminals of the microcontroller after a preprocessing circuit and an AD converter. The multiple output terminals of the microcontroller are respectively connected with all the motors controlling the window curtains. A working program is arranged inside the micro-controller, and the working program sets the addresses of the light brightness sensor outside the window, the light brightness sensor inside the window and the motor of each car window, so as to facilitate one-to-one corresponding control. The opening or closing of each window curtain is controlled by a common control system, which saves the number of microcontrollers, lowers the cost, and has better control scalability.

The beneficial effects of the utility model are: the opening or closing of the window curtains can be automatically controlled according to the intensity of the light inside and outside the car window, no manual operation is required, on the one hand, the light in the car will not be too strong or too weak, and the The comfort of driving, on the other hand, the opening and closing of the windows and curtains does not need to be controlled by manual operation, which improves the safety of driving and riding.

Description of drawings

Fig. 1 is a block diagram of circuit principle connection structure of the utility model.

Fig. 2 is a block diagram of another circuit principle connection structure of the present invention.

In the figure 1. Outer window brightness sensor, 2. Inner window brightness sensor, 3. Preprocessing circuit, 4. AD converter, 5. Microcontroller, 6. Motor, 7. Button module.

Detailed ways

The technical solutions of the present utility model will be further specifically described below through the embodiments and in conjunction with the accompanying drawings.

Embodiment 1: the automatic type car window curtain system of the present embodiment, the outside of each fan car window is equipped with a car window brightness sensor 1, and the interior of each fan car window is installed with a car window brightness sensor 2, and each fan car window The window curtain is connected with a motor 6 that controls the window curtain. As shown in Figure 1, it is a control system schematic diagram of a window curtain, and each window curtain is independently connected with a control system as shown in Figure 1, the number of the control system and microcontroller 5 and the number of windows same amount. The control system includes a vehicle window brightness sensor 1, a vehicle window brightness sensor 2, a preprocessing circuit 3, an AD converter 4, a key module 7, a microcontroller 5 and a motor 6 for controlling the window curtain. The output end of the light brightness sensor 1 outside the car window and the output end of the light brightness sensor 2 in the car window are respectively connected to the input end of the respective preprocessing circuit 3, and the output end of the preprocessing circuit 3 is connected to the input end of the AD converter 4, The output end of AD converter 4 links to each other with the input end of microcontroller 5, and button module 7 also links to each other with microcontroller 5, and button module 7 is the button that is installed at the bottom of the window, and the output end of microcontroller 5 is connected with motor 6. connected to the drive end.

The brightness sensor is to convert the light into a corresponding voltage signal, and the converted voltage value is different according to the light intensity. The voltage signals converted by the brightness sensor outside the window and the brightness sensor inside the window are respectively amplified and filtered by the preprocessing circuit, and then sent to the AD converter for processing, and the voltage signal is converted into a corresponding digital signal and sent to the microcontroller Perform analysis, processing and calculation to obtain different control signals, and then use these control signals to control the rotation of the motor connected to the window curtain. If the light outside the window is strong, the microcontroller sends a control command to drive the motor, and the motor controls the curtains; if the light inside the window is weak, the microcontroller sends a control command to stop the motor; if the light outside the window becomes weak, The microcontroller sends control instructions to drive the motor, and the motor controls the curtain to be opened. Thereby, the automatic opening or closing of the window curtain is realized, no manual operation is required, and the safety and comfort of driving and riding are improved. When there is a special situation, when the state of the window curtain controlled by the brightness sensor does not meet the needs of the passenger, the passenger can also realize the control of the window curtain by operating the button, and the control is more flexible.

In this embodiment, the opening or closing of each window curtain is independently controlled by a control system. Although the number of microcontrollers used is relatively large, the control reliability is high and the maintenance is also convenient.

Embodiment 2: the automatic type car window curtain system of the present embodiment, the outside of each fan car window is equipped with a car window brightness sensor 1, and the interior of each fan car window is equipped with a car window brightness sensor 2, and each fan car window The window curtain is connected with a motor 6 that controls the window curtain. As shown in Figure 2, it is the whole control system schematic diagram of all window curtains in the car, every window curtain is all connected with this control system, and the microcontroller 5 used has only one. The output terminals of all the external brightness sensors 1 of the vehicle window and the internal brightness sensors 2 of the vehicle window are connected to the input terminals of the corresponding AD converters 4 through respective preprocessing circuits 3, and the output terminals of each AD converter 4 are respectively connected to the microcontroller. A plurality of input ends of 5 are connected, and the button module 7 formed by the buttons installed on the bottom of each window is also connected with the microcontroller 5, and a plurality of output ends of the microcontroller 5 are respectively connected with the driving ends of each motor 6 . Microcontroller 5 is internally provided with working program, and working program carries out address setting to the car window outer brightness sensor 1 of each fan window, the car window inner brightness sensor 2 and motor 6, is convenient to do one-to-one correspondence control.

The brightness sensor is to convert the light into a corresponding voltage signal, and the converted voltage value is different according to the light intensity. The voltage signals converted by the brightness sensor outside the window and the brightness sensor inside the window are respectively amplified and filtered by the preprocessing circuit, and then sent to the AD converter for processing, and the voltage signal is converted into a corresponding digital signal and sent to the microcontroller , the microcontroller analyzes, processes and calculates the data sent by the brightness sensor on each window to obtain different control signals, and then uses these control signals to control the rotation of the motor connected to the corresponding window curtain. If the external light of a car window is strong, the microcontroller sends a control command to drive the corresponding motor, and the motor controls the curtain to draw; if the light in the window is weak, the microcontroller sends a control command to stop the motor; If the external light of a car window becomes weak, the microcontroller sends a control command to drive the corresponding motor, and the motor controls the curtain to be opened. Thereby, the automatic opening or closing of each window curtain is realized, no manual operation is required, and the safety and comfort of driving and riding are improved. When there is a special situation, when the state of the window curtain controlled by the brightness sensor does not meet the needs of the passenger, the passenger can also realize the control of the window curtain by operating the button below each window, and the control is more flexible.

In this embodiment, the opening or closing of each window curtain is controlled by a shared control system, which saves the number of microcontrollers, lowers the cost, and has better control scalability.

Claims (4)

1. An automatic window curtain system, characterized in that it includes a light brightness sensor (1) outside the car window, a light brightness sensor (2) in the car window, a preprocessing circuit (3), an AD converter (4), a micro-controller device (5) and the motor (6) that controls the window curtain, the output end of the light sensor outside the window (1), the output end of the light sensor inside the window (2) and the respective preprocessing circuit (3) The input terminal is connected, the output terminal of the preprocessing circuit (3) is connected with the input terminal of the AD converter (4), the output terminal of the AD converter (4) is connected with the input terminal of the microcontroller (5), and the microcontroller ( 5) The output terminal is connected to the driving terminal of the motor (6), and each window is provided with a vehicle window brightness sensor (1), and each vehicle window is provided with a vehicle window sensor (1) Inner brightness sensor (2), each fan window curtain is connected with a described motor (6). 2. The automatic window and curtain system according to claim 1, characterized in that it comprises a button module (7), and the button module (7) is connected to the microcontroller (5). 3. The automatic window and curtain system according to claim 1 or 2, characterized in that the number of the microcontroller (5) is the same as the number of windows, that is, each window is correspondingly provided with a The microcontroller (5) described above, each window curtain is independently connected with a light brightness sensor (1) outside the car window, a light brightness sensor (2) inside the car window, a preprocessing circuit (3), an AD converter ( 4), a control system composed of a microcontroller (5) and a motor (6). 4. The automatic window and curtain system according to claim 1 or 2, characterized in that the microcontroller (5) has one, and all the external light brightness sensors (1) of the vehicle window and the internal light of the vehicle window The brightness sensor (2) is respectively connected to the multiple input terminals of the microcontroller (5) after the preprocessing circuit (3) and the AD converter (4), and the multiple output terminals of the microcontroller (5) are respectively It is connected to all the motors (6) that control the window curtains.

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