CN102817524A - Intelligent car window control system - Google Patents

Abstract

The invention discloses an intelligent vehicle window control system. The system includes a main control module communicated with a driving computer. The main control module is respectively connected with a wireless communication module, an inductor module, a sensor module and a vehicle window motor drive module. . The invention realizes that after the car owner leaves, he can safely and boldly open a small amount of car windows for ventilation, even if it rains, there is no need to worry about getting wet inside the car, making the car more intelligent and humanized. Through the infrared alarm device installed on the skylight, the control system can alarm through the GSM module text message and high-loud horn, which improves the safety of forgetting to close the skylight. The control system can be simply integrated into the electronic control system of the original automobile, and the existing car window lift control system can also be individually refitted, which is convenient, practical and low in cost.

Description

An intelligent window control system

technical field

The invention relates to a control system, in particular to a vehicle window control system.

Background technique

Now the window control system of many cars can only be opened and closed simply by artificially controlling its opening and closing through the buttons in the car or by the remote control key at close range. Whenever the hot summer comes, due to the high outside temperature and the relatively closed environment inside the car, the car owner will feel quite stuffy and uncomfortable after entering the car, so many car owners like to open the sunroof or open the side window after leaving the car. One slit is ventilated so that the interior of the car can be kept relatively cool when driving next time, but summer is unpredictable, and when thunderstorms come, the owner may not be able to close the windows in time or even forget to close the windows. Cause the inside of the car to be wet and produce some unnecessary losses.

In addition, if the car window is opened, especially when the sunroof is opened larger, it will bring certain hidden dangers to the safety of the property in the car. However, the existing car window lift control system can only rely on manual button operation, and the degree of intelligence and humanization is not high, and when the outside world (such as a thief) invades the car through the sunroof, it cannot send an alarm in time (now the general car side The windows are equipped with various alarm sensors, but the skylights are not).

Contents of the invention

Aiming at the deficiencies of the above-mentioned prior art, the object of the present invention is to provide a smart car window control system, which can sense rainwater and other conditions to automatically close the windows and send an alarm in time when encountering a thief.

In order to achieve the above object, the technical solution proposed by the present invention is an intelligent vehicle window control system, which includes a main control module connected to the driving computer in communication, and a wireless communication module, a sensor module, and a sensor module are connected to the main control module through communication. module and the window motor drive module.

The sensor module is a raindrop sensor and/or a pressure sensor. Both raindrop sensor and pressure sensor can be used to monitor. When the rain hits the roof of the car during heavy rain, the humidity sensitive resistance value or pressure change of the raindrop sensor will change, which will cause the output signal of the sensor to change, which will be sent to the single chip microcomputer for judgment. Or use two sensors at the same time to achieve better monitoring effect.

The sensor module is an infrared sensor module.

The wireless communication module is a Global System for Mobile Communications GSM module.

The main control module and the window motor drive module are also connected with a motor protection circuit.

The present invention uses single-chip microcomputer and sensor technology to design such an intelligent car window control system. The car owner can choose to park and leave the car window lift system to switch to automatic mode (the default is manual, and the manual and remote control itself is still not affected), so At this time, the system can judge whether it is raining through the raindrop sensor or pressure sensor installed on the roof, and then send the signal to the single-chip system, and then send a signal to the four side doors and the sunroof motor drive module from the single-chip microcomputer whether to close the window. If the car owner just opens the sunroof and the side window at this time, when the sensor detects that it is raining, the purpose of closing the window in time can be achieved. This system can also use the current mobile network to send " It is raining outside, the window is closed" reminder message, such a window can be automatically closed according to the external environment change (rain), and can notify the owner, which is very user-friendly.

The safety issue after the sunroof is opened can be monitored by installing infrared sensors. A pair of infrared tubes are installed on both sides of the sunroof. Under normal circumstances, signals can be sent and received. When someone wants to enter the car through the sunroof, the infrared light path is cut off. After receiving the signal, the single-chip microcomputer drives the loudspeaker to give an alarm, and at the same time triggers the GSM wireless communication module to send relevant alarm short messages to the owner's mobile phone, so that the owner can handle it in time.

Beneficial effects: the invention realizes that after the car owner leaves, he can safely and boldly open a small amount of car windows for ventilation, even if it rains, he does not have to worry about getting wet inside the car, making the car more intelligent and humanized. Through the infrared alarm device installed on the skylight, the control system can alarm through the GSM module text message and high-loud horn, which improves the safety of forgetting to close the skylight. The control system can be simply integrated into the electronic control system of the original automobile, and can also be individually refitted to the existing window lift control system, which is convenient and practical, and has low cost.

Description of drawings

Fig. 1 is a block diagram of the system structure of the present invention;

Fig. 2 is a hardware circuit diagram of the raindrop sensor of the present invention;

Fig. 3 is a block diagram of the overall architecture of the GSM module of the present invention;

Fig. 4 is a flow chart of the program of the present invention.

Detailed ways

The present invention will be further illustrated below in conjunction with the accompanying drawings and specific embodiments. This embodiment is implemented on the premise of the technical solution of the present invention. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention.

As shown in Figure 1, an intelligent vehicle window control system includes a main control module communicated with a driving computer, and a GSM module, an infrared sensor module, a raindrop sensor and/or a pressure sensor module are respectively communicated with the main control module As well as the window motor drive module, the main control module and the window motor drive module are also connected with a motor protection circuit.

Fig. 2 shows the circuit diagram of the raindrop sensor of the present invention, and its principle is as follows: U2 in the circuit is a humidity sensitive resistor, when the external humidity changes, its resistance value will change, R1 and U2 form a voltage divider circuit, and LM393 is a dual voltage comparator The device integrated circuit is used in this module to compare the voltage at both ends of INA- and INA+, and output high and low levels:

When the voltage of the "+" input terminal is higher than the "-" input terminal, the output D0 of the voltage comparator is high level; it is input to the negative terminal of the green light and the single-chip microcomputer, and the light is off; it means that there is no rain at this time;

When the voltage of the "+" input terminal is lower than the "-" input terminal, the output D0 of the voltage comparator is low level; it is input to the negative terminal of the green light and the single-chip microcomputer, and the light is on; it means that there is rain at this time.

Adjusting R4 can change the sensitivity of the humidity sensitive resistance raindrop sensor, that is, the owner can adjust the value for judging the amount of rain.

Fig. 3 is a block diagram of the overall structure of the GSM module of the present invention. The wireless communication part adopts the new version of Siemens industry GSM module of TC35i, which is an industrial-grade GSM module supporting Chinese short messages. TC35i consists of a power supply module (ASIC), flash memory, ZIF connector, antenna It consists of 6 parts including the interface. As the core baseband processor of TC35i, it mainly deals with voice and data signals in GSM terminals, and covers all analog and digital functions in cellular radio frequency equipment.

The data interface of TC35i can transmit instructions and data bidirectionally through AT commands, and the baud rate is optional. It supports SMS (Short Message Service, short message) in Text and PDU formats. The function of sending short messages to a specific mobile phone number can be realized by simply programming the corresponding pins.

The working process of the control system of the present invention is as shown in Figure 4:

(1) The driver manually controls the windows up and down during the driving process. When the owner leaves, even if manual control is selected, as long as the car is locked, it will switch to automatic mode. Automatic mode starts working after locking the car. The car reverts to manual control when it is unlocked.

(2) After changing to the automatic mode, when the sky is raining, there will be raindrops on the humidity sensitive resistance sensor, and the output signal will change. At this time, the signal will be sent to the main control module, and the main control module will give the motor After transmitting the rotation signal, the motor module starts to drive the window to rotate until the window reaches the top, the motor is resisted, and the motor overload protection circuit feeds back to the single chip microcomputer to stop the motor. Once the automatic window closing process is completed, the main control module will no longer detect the signal from the sensor. If the window itself is closed before the rain, the main control module will no longer detect the sensor signal after detecting the motor overload protection circuit feedback signal.

(3) In the automatic mode, when someone wants to steal through the half-opened sunroof, the infrared sensor alarm module will receive the signal and send it to the main control single-chip system module, and the main control module will transmit the rotation signal to the window motor , close the sunroof, and the alarm will start to sound at the same time, and the GSM module will send an alarm message to the owner.

Claims (5)

1. intelligent vehicle window control system, it is characterized in that: comprise the main control module of communicating by letter and being connected with car running computer, communication link is connected to wireless communication module, sensor module, sensor assembly and vehicle window motor drive block respectively on main control module.

2. according to the said a kind of intelligent vehicle window control system of claim 1, it is characterized in that: said sensor assembly is Raindrop sensor and/or pressure sensor.

3. according to the said a kind of intelligent vehicle window control system of claim 1, it is characterized in that: said sensor module is the infrared inductor module.

4. according to the said a kind of intelligent vehicle window control system of claim 1, it is characterized in that: said wireless communication module is the global system for mobile communications gsm module.

5. according to the said a kind of intelligent vehicle window control system of claim 1, it is characterized in that: also be connected to motor protective circuit on said main control module and the vehicle window motor drive block.

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