CN213676508U

CN213676508U - Automobile anti-collision early warning system

Info

Publication number: CN213676508U
Application number: CN202022788934.XU
Authority: CN
Inventors: 张洲
Original assignee: Shenzhen Huiyoudi Technology Co ltd
Current assignee: Shenzhen Huiyoudi Technology Co ltd
Priority date: 2020-11-26
Filing date: 2020-11-26
Publication date: 2021-07-13
Anticipated expiration: 2030-11-26

Abstract

The utility model relates to an automobile anticollision early warning system. The automobile anti-collision early warning system comprises a main control circuit, an ultrasonic ranging circuit, a display circuit, an alarm circuit and a motor driving circuit, wherein the main control circuit adopts an STC89C52 singlechip control chip; the motor driving circuit adopts an L298N motor driving chip; the display circuit adopts 74LSO6 driving chip and LCD1602 display; the ultrasonic ranging circuit comprises an ultrasonic transmitting circuit and an ultrasonic receiving circuit, wherein the ultrasonic transmitting circuit comprises an LM555 multivibrator chip, a CSB40T transmitting probe, an adjusting resistor RP, a resistor R1 and a capacitor C1; the ultrasonic receiving circuit comprises a CX20106A ultrasonic receiving chip, a CSB40R receiving probe and a capacitor C2; the alarm circuit comprises a buzzer, a triode Q1, a light emitting diode D1, a resistor R2 and a resistor R3. The application provides an automobile anti-collision early warning system can effectively improve the factor of safety of driver in driving process.

Description

Automobile anti-collision early warning system

Technical Field

The utility model relates to an automobile anticollision technical field especially relates to an automobile anticollision early warning system.

Background

With the continuous development of economy, the automobile retention amount in China is continuously increased, and the automobile traveling safety becomes the most concerned problem for people. However, the conventional vehicle usually does not have the function of pre-warning for collision avoidance, and during the driving process of the vehicle, the safety is poor due to the blind area of the vehicle itself or the driver observing the vehicle without carefully colliding with the obstacle or the pedestrian.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a can effectively improve vehicle driving safety coefficient's car anticollision early warning system.

For realizing the purpose of the utility model, the utility model adopts the following technical scheme:

an automobile anti-collision early warning system comprises a main control circuit, an ultrasonic ranging circuit, a display circuit, an alarm circuit and a motor driving circuit, wherein the main control circuit adopts an STC89C52 singlechip control chip; the motor driving circuit adopts an L298N motor driving chip, and an automobile motor is connected with a first output end of the STC89C52 singlechip control chip through the L298N motor driving chip; the display circuit adopts a 74LSO6 driving chip and an LCD1602 display, and the LCD1602 display is connected with a second output end of the STC89C52 singlechip control chip through the 74LSO6 driving chip;

the ultrasonic ranging circuit comprises an ultrasonic transmitting circuit and an ultrasonic receiving circuit, wherein the ultrasonic transmitting circuit comprises an LM555 multivibrator chip, a CSB40T transmitting probe, an adjusting resistor RP, a resistor R1 and a capacitor C1, a 4 th pin of the LM555 multivibrator chip is connected with a third output end of the STC89C52 singlechip control chip, a 6 th pin of the LM555 multivibrator chip is respectively connected with an adjusting end of the adjusting resistor RP and one end of the capacitor C1, the other end of the capacitor C1 is connected with a 3 rd pin of the LM555 multivibrator chip through the CSB40T transmitting probe, one end of the adjusting variable resistor RP is connected with an 8 th pin of the LM555 multivibrator chip through the resistor R1, and the other end of the adjusting variable resistor RP is connected with a 2 nd pin of the LM555 multivibrator chip;

the ultrasonic receiving circuit comprises a CX20106A ultrasonic receiving chip, a CSB40R receiving probe and a capacitor C2, wherein the 7 th pin of the CX20106A ultrasonic receiving chip is connected with the first input end of the STC89C52 singlechip control chip, the 1 st pin of the CX20106A ultrasonic receiving chip is respectively connected with one end of the CSB40R receiving probe and one end of the capacitor C2, and the other end of the CSB40R receiving probe and the other end of the capacitor C2 are grounded;

the alarm circuit comprises a buzzer, a triode Q1, a light emitting diode D1, a resistor R2 and a resistor R3, one end of the resistor R2 is connected with a fourth output end of the STC89C52 single-chip microcomputer control chip, the other end of the resistor R2 is connected with a base electrode of the triode Q1, an emitting electrode of the triode Q1 is respectively connected with one end of the buzzer, one end of the resistor R3 is connected, the other end of the resistor R3 is connected with a negative electrode of the light emitting diode D1, an anode of the light emitting diode D1 is connected with a VCC end of a power supply, and a collector of the triode Q1 is grounded.

The application provides an automobile anti-collision early warning system includes ultrasonic ranging circuit, display circuit and warning circuit, the barrier distance around the ultrasonic ranging circuit real-time measurement vehicle, the distance of current barrier can be shown in real time to the display circuit, warning circuit can send the warning suggestion when the barrier distance is too close, remind the driver to slow down or brake, avoid driver in driving process unnecessary accident and injury, effectively improve the factor of safety of driving.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of an anti-collision warning system for a vehicle;

FIG. 2 is a schematic circuit diagram of an ultrasonic transmitting circuit in the vehicle anti-collision warning system in FIG. 1;

FIG. 3 is a schematic circuit diagram of an ultrasonic receiving circuit in the vehicle anti-collision warning system shown in FIG. 1;

fig. 4 is a schematic circuit diagram of an alarm circuit in the vehicle anti-collision early warning system in fig. 1.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

Referring to fig. 1, the embodiment provides an automobile anti-collision early warning system, which includes a main control circuit 100, an ultrasonic ranging circuit 200, a display circuit 300, an alarm circuit 400, and a motor driving circuit 500.

The ultrasonic ranging circuit 200 can be arranged at the head and/or tail of a vehicle, the ultrasonic ranging circuit 200 comprises an ultrasonic transmitting circuit and an ultrasonic receiving circuit, see fig. 2, the ultrasonic transmitting circuit comprises an LM555 multivibrator chip, a CSB40T transmitting probe, an adjusting resistor RP, a resistor R1 and a capacitor C1, a 4 th pin of the LM555 multivibrator chip is connected with a third output end (PB10) of an STC89C52 singlechip control chip, a 6 th pin of the LM555 multivibrator chip is respectively connected with an adjusting end of the adjusting resistor RP and one end of a capacitor C1, the other end of the capacitor C1 is connected with a 3 rd pin of the LM555 multivibrator chip through the CSB40T transmitting probe, one end of the adjusting variable resistor RP is connected with an 8 th pin of the LM555 multivibrator chip through the resistor R1, and the other end of the adjusting variable resistor RP is connected with a 2 nd pin of the LM555 multivibrator chip.

Referring to fig. 3, the ultrasonic receiving circuit includes a CX20106A ultrasonic receiving chip, a CSB40R receiving probe and a capacitor C2, a 7 th pin of the CX20106A ultrasonic receiving chip is connected to a first input terminal (PB9) of the STC89C52 single-chip microcomputer control chip, a 1 st pin of the CX20106A ultrasonic receiving chip is connected to one end of the CSB40R receiving probe and one end of the capacitor C2, respectively, and the other end of the CSB40R receiving probe and the other end of the capacitor C2 are grounded.

In this embodiment, the LM555 multivibrator chip is used to drive the CSB40T emission probe to emit ultrasonic signals, and the adjustment resistor RP can adjust the oscillation frequency of the LM555 multivibrator chip, so that the oscillation frequency output by the LM555 multivibrator chip is consistent with the natural frequency of the CSB40T emission probe; the CSB40R receiving probe is used for receiving ultrasonic signals transmitted by the CSB40T transmitting probe and sending the received ultrasonic signals to the CX20106A ultrasonic receiving chip, the CX20106A ultrasonic receiving chip calculates the distance between the current obstacle and the vehicle according to the received signals and sends the calculated distance between the obstacle or the pedestrian to the main control circuit 100, the main control circuit 100 compares the value with a set range, and when the distance between the obstacle or the pedestrian exceeds the set range, the main control circuit 100 sends a control signal to the motor driving circuit 500 to enable the motor driving circuit 500 to drive the motor of the automobile to decelerate or stop; meanwhile, the main control circuit 100 can also control the alarm circuit 400 to send an alarm prompt and control the display circuit 300 to display the distance between the current barrier or pedestrian and the vehicle, so as to remind the driver and ensure the safety of the vehicle in the driving process.

Specifically, the main control circuit 100 may employ an STC89C52 single chip microcomputer control chip; the motor driving circuit 500 can adopt an L298N motor driving chip, and an automobile motor is connected with a first output end of an STC89C52 singlechip control chip through the L298N motor driving chip; the display circuit 300 may employ a 74LSO6 driver chip and an LCD1602 display, the LCD1602 display being connected to a second output of the STC89C52 single chip microcomputer controller chip via a 74LSO6 driver chip.

Referring to fig. 4, the alarm circuit 400 may include a buzzer, a transistor Q1, a light emitting diode D1, a resistor R2, and a resistor R3, wherein one end of the resistor R2 is connected to a fourth output terminal (PB8) of the STC89C52 single chip microcomputer control chip, the other end of the resistor R2 is connected to a base of the transistor Q1, an emitter of the transistor Q1 is connected to one end of the buzzer and one end of the resistor R3, the other end of the resistor R3 is connected to a cathode of the light emitting diode D1, an anode of the light emitting diode D1 and the other end of the buzzer are connected to a VCC terminal of a power supply, and a collector of the transistor Q1 is grounded.

The automobile anti-collision early warning system that this embodiment provided includes ultrasonic ranging circuit 200, display circuit 300 and warning circuit 400, but ultrasonic ranging circuit 200 real-time measurement vehicle obstacle distance on every side, display circuit 300 can show the distance of current obstacle in real time, warning circuit 400 can send the warning suggestion when the obstacle distance is too close, remind the driver to slow down or brake, avoid driver in the driving process unnecessary accident and injury, effectively improve the factor of safety of driving.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. An automobile anti-collision early warning system is characterized by comprising a main control circuit, an ultrasonic distance measuring circuit, a display circuit, an alarm circuit and a motor driving circuit, wherein the main control circuit adopts an STC89C52 singlechip control chip; the motor driving circuit adopts an L298N motor driving chip, and an automobile motor is connected with a first output end of the STC89C52 singlechip control chip through the L298N motor driving chip; the display circuit adopts a 74LSO6 driving chip and an LCD1602 display, and the LCD1602 display is connected with a second output end of the STC89C52 singlechip control chip through the 74LSO6 driving chip;