CN205417367U - Collision avoidance system that opens door is controlled to car - Google Patents

Abstract

The utility model relates to a traffic safety field, and concretel, a collision avoidance system that opens door is controlled to car, can effectively avoid the car to berth the unneccessary collision that probably appears when opening the door, by vehicle power supply, speed sensor, the system control switch, infrared proximity switch, the ultrasonic sensing module, singlechip controller, early warning device, the car door lock connection is looped in, speed sensor installs on wheel wheel hub, the system control switch is put through and is broken off through received signal, the system control switch comprises logic switch no. 1 and logic switch no. 2, infrared proximity switch installs in the door on hand, ultrasonic sensing module integration is on rearview mirror, the ultrasonic sensing module comprises ultrasonic emission probe and ultrasonic wave receiving probe, singlechip controller carries out the analysis processes of signal, be equipped with the judgement component in the singlechip controller, early warning device is by the pilot lamp, audio alert ware and control module constitute, control by control module.

Description

Automobile control door opening anti-collision system

technical field

The utility model relates to the field of traffic safety, in particular to an automobile control door opening anti-collision system, which can effectively avoid unnecessary collisions that may occur when the automobile stops and opens the door.

Background technique

With the continuous development of our country's social economy, the automobile industry is also booming, the number of automobiles is increasing rapidly, the road traffic is showing a trend of dense traffic and unprofessional drivers, and traffic accidents are also rising sharply. Wherein the collision accident that automobile door causes is also one of more common and frequently occurring traffic accidents.

The car door opening anti-collision device is for people in the car to open the door and get off the car, if it detects that there is a target coming from the side and rear of the door, it will automatically lock the door and send out music or voice prompts to remind you to open the door At this time, the person who suddenly opens the door may collide with the target behind him; if he thinks that the target is far enough away from the door, so that he can slowly open the door within the time for the target to respond, he can press the unlock button to manually open the door. Unlock and open the car door; in this way, the occurrence of car door collision accidents can be effectively avoided.

At present, there is a car door opening anti-collision device, which includes a parking sensor, a microwave sensor, a pressure switch, a total control circuit, a voice module and a door lock. The parking sensor is connected to the car control circuit board; the microwave sensor is installed on the rear side of the door; The pressure switch is installed on the door handle. When there is someone behind the car, the voice module will remind the occupants; if there is no one behind the car, the voice module will not remind the occupants, but the microwave sensor is installed on the rear side of the door, so the objects on the side of the door cannot be sensed, and the parking sensor, Pressure switches and microwave sensors are always in working condition, which is not conducive to energy saving. When multiple signals are sent to the car control circuit board for processing, it will not be able to respond in time due to the large number of signals.

Utility model content

In order to solve the above technical problems and provide the market with a car door opening anti-collision device with stable operation, reliable technology and high safety, the utility model proposes to use an infrared proximity switch and a vehicle speed sensor to jointly control the ultrasonic sensor integrated on the rearview mirror. Modules make the safety of pedestrians more reliable.

The utility model discloses an automobile control door opening anti-collision system, which is composed of a vehicle power supply, a vehicle speed sensor, a system control switch, an infrared proximity switch, an ultrasonic sensing module, a single-chip controller, an early warning device, and a car door lock to form a circuit, and the vehicle speed sensor is installed On the wheel hub, the system control switch is connected and disconnected by receiving signals. The system control switch is composed of logic switch 1 and logic switch 2. The infrared proximity switch is installed on the inner handle of the door, and the ultrasonic sensing module is integrated on the rearview mirror. The ultrasonic sensing module is composed of an ultrasonic transmitting probe and an ultrasonic receiving probe. The single-chip controller performs signal analysis and processing. The single-chip controller is equipped with a judging element. The early warning device is composed of an indicator light, a voice alarm and a control module, which is controlled by the control module. .

In this technical solution, the vehicle power supply supplies power to the entire system, and the vehicle speed sensor and the infrared proximity switch work together to determine whether the personnel in the vehicle have the motivation to open the door and get off. Two signals, the system control switch is turned on, so that the ultrasonic sensing module works. The ultrasonic sensing module senses the moving object behind, and feeds back the speed of the moving object and the distance from the car to the microcontroller controller after calculating the time, and then The single-chip controller analyzes and processes the time. When it is detected that the moving object in the rear is very close to the car and is not enough to safely open the door, the warning device will sound an alarm, the indicator light will flash and the door lock will be locked and cannot be opened. When the moving object disappears or there is no moving object behind, the warning device stops working and the door lock is unlocked, so that the door can be opened.

As a further improvement of the utility model, the vehicle power supply adopts the accumulator battery carried by the vehicle.

As a further improvement of the utility model, the door lock adopts the central control lock of the automobile itself, which is controlled by a single-chip controller.

As a further improvement of the utility model, the indicator light is installed on the B-pillar in the car, the voice alarm is integrated with the sound in the car, and the alarm sound is sent by the sound.

The beneficial effect of the utility model is that the utility model overcomes the shortcomings of the existing car door-opening anti-collision device, such as induction dead angle, energy loss, and inability to respond in time, and can not only sense side pedestrians, but also efficiently and accurately determine whether The side door of the automobile can be safely opened from the inside. The utility model greatly reduces the frequent occurrence of such accidents and provides an important guarantee for the safety of passers-by.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the utility model.

Fig. 2 is a structural schematic diagram of the early warning device of the present invention.

Fig. 3 is a structural schematic diagram of the ultrasonic induction module of the present invention installed on the reversing mirror.

Fig. 4 is a structural schematic diagram of two probes of the ultrasonic sensing module of the present invention.

Fig. 5 is a structural schematic diagram of the single-chip controller of the present invention.

Fig. 6 is a structural schematic diagram of the system control switch of the present invention.

In the figure, 1-vehicle power supply, 2-vehicle speed sensor, 3-system control switch, 4-infrared proximity switch, 5-ultrasonic sensor module, 6-single chip controller, 7-warning device, 8-door lock, 9- Indicator light, 10-voice alarm, 11-control module, 12-reversing mirror, 13-ultrasonic transmitting probe, 14-ultrasonic receiving probe, 15-judgment element, 16-logic switch 1, 17-logic switch 2.

detailed description

In order to deepen the understanding of the utility model, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments, which are only used to explain the utility model, and do not limit the protection scope of the utility model.

Embodiment: as shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6, a kind of automobile control door opening anti-collision system is composed of vehicle power supply 1, vehicle speed sensor 2, system control switch 3, infrared proximity Switch 4, ultrasonic sensing module 5, single-chip controller 6, early warning device 7, and door lock 8 are connected to form a circuit. The vehicle power supply 1 is the 12V battery provided by the vehicle to provide electric energy for the entire vehicle control door opening and anti-collision system. The vehicle speed sensor 2 Installed on the wheel hub, it is to measure the speed signal of the wheel. If the speed is not zero, it is low level, if the speed is zero, it is high level, and then transmit the measured signal to the system control switch 3, infrared proximity switch 4 Installed on the inner door handle of the car door, when the human hand opens the door, it will sense it, generate a high-level signal, and then transmit the high-level signal to the system control switch 3, if the system control switch 3 receives the vehicle speed sensor 2 at the same time When the high-level signal of the infrared proximity switch 4 and the high-level signal of the infrared proximity switch 4, the system control switch 3 is connected, otherwise the system control switch 3 is not connected. When the system control switch 3 is turned on, the ultrasonic sensing module 5 integrated on the rear view mirror 12 is powered on and starts to work. The ultrasonic sensing module 5 mainly senses the moving objects behind and the distance signal of passers-by from the car, and then passes the formula: time = displacement ÷ speed, calculate the time. Single-chip controller 6 analyzes and judges whether the door can be opened safely within this time. If the single-chip controller 6 judges that the time is not enough to open the door safely, then the single-chip controller 6 controls the early warning device 7 to start working, the indicator light 9 flickers and is accompanied by the alarm sound that the voice alarm 10 sends, and the door lock 8 locks the car door. The personnel in the car cannot open the car door until the single-chip controller 6 judges that the car door can be opened safely, and the car door can be opened; In the unlocked state, the occupants of the car can safely open the door at this time.

System control switch 3 mainly consists of logic switch one 16 and logic switch two 17. Logic switch one 16 is used to judge the signal of vehicle speed sensor 2. If the output signal of vehicle speed sensor 2 is high level, then logic switch one 16 is turned on, otherwise The logic switch 16 is not conducting; the logic switch 2 17 is used to receive the signal of the infrared proximity switch 4, if the output signal of the infrared proximity switch 4 is high level, the logic switch 2 17 is conducting, otherwise the logic switch 2 17 is not conducting . When logic switch one 16 and logic switch two 17 were both conducting, the system control switch 3 was also connected.

There are two probes on the ultrasonic sensing module 5 , one is an ultrasonic transmitting probe 13 and the other is an ultrasonic receiving probe 14 . Its working principle is exactly to send ultrasonic wave by ultrasonic transmitting probe 13, can reflect back after meeting object, then after ultrasonic receiving probe 14 receives the ultrasonic wave that comes back, ultrasonic induction module 5 transmits ultrasonic wave from ultrasonic transmitting probe 13 according to the speed of ultrasonic wave. The corresponding time is calculated from the distance until the ultrasound receiving probe 14 receives the ultrasound. This time signal is transmitted to the single-chip controller 6 for analysis and processing.

There is a judging element 15 in the single-chip controller 6, judge whether there is enough time to open the car door by judging element 15, just send signal to car door lock 8 if judging element 15 judges that opening the door is dangerous, otherwise just does not send signal.

The early warning device 7 is made up of an indicator light 9 , a voice alarm 10 and a control module 11 , and the control module 11 controls the indicator light 9 and the voice alarm 10 .

This embodiment, as an automobile control door opening anti-collision system, has the following characteristics:

1) The system does not work all the time, it is only turned on normally when necessary, so as to save energy;

2) The ultrasonic sensing module is integrated on the rearview mirror, which reduces the damage to the body structure caused by installation;

3) The ultrasonic sensing module is integrated on the reversing mirror, which can better sense moving objects and passers-by in the rear and side directions;

4) The ultrasonic sensing module that senses the rear orientation and side orientation can use the speed and displacement to calculate the time, so that it can more accurately judge whether it is dangerous to open the door;

5) The dual factors of infrared proximity switch and vehicle speed sensor jointly control the opening and closing of the entire system, reducing the false opening of the system;

6) The ultrasonic sensing module has a wide range of sensing, high precision, and reliable operation in harsh environments.

The basic principles, main features and advantages of the present utility model have been shown and described above. Those skilled in the industry should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model The new model also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.

Claims (4)

1. A car control door-opening anti-collision system is characterized in that: it is connected to form a loop by a vehicle power supply, a vehicle speed sensor, a system control switch, an infrared proximity switch, an ultrasonic sensing module, a single-chip controller, an early warning device, and a car door lock. The vehicle speed sensor is installed on the wheel hub, and the system control switch is turned on and off by receiving signals. The system control switch is composed of logic switch 1 and logic switch 2. The infrared proximity switch is installed on the inner handle of the car door. The ultrasonic sensing module is integrated on the reversing mirror, the ultrasonic sensing module is composed of an ultrasonic transmitting probe and an ultrasonic receiving probe, the single-chip controller performs signal analysis and processing, and a judging element is arranged in the single-chip controller. The early warning device is composed of an indicator light, a voice alarm and a control module, and is controlled by the control module. 2. The vehicle control door opening anti-collision system according to claim 1, characterized in that: said vehicle power supply adopts a storage battery that comes with the vehicle. 3. The car door opening anti-collision system according to claim 2, characterized in that: the car door lock adopts the central control lock of the car itself, and is controlled by the single-chip microcomputer controller. 4. The automobile control door opening anti-collision system according to any one of claims 1-3, characterized in that: the indicator light is installed on the B-pillar in the automobile, and the voice alarm is integrated with the audio in the automobile to alarm The sound is emitted by the speaker.