CN205601701U - Freight train bend pedestrian detects warning system - Google Patents

Abstract

The utility model discloses a pedestrian detection and warning system on a truck curve, which comprises a control panel, a monitoring camera, a turning sensor, an ultrasonic distance measuring device, an infrared human body induction device and a voice prompting device. The monitoring camera is connected with the control panel for monitoring For the area around the side body, the turning sensor is connected to the control panel to detect whether the vehicle is turning to control the start of the warning system. The ultrasonic distance measuring device is connected to the control panel to detect the distance from the human body, and the infrared human body sensor is connected to the control panel. Detect whether there are pedestrians passing by, and the voice prompt device is connected with the control panel to prompt pedestrians to avoid. The utility model can remind the driver to keep concentration when turning on a curve no matter day or night, and at the same time warn pedestrians near the dangerous area to keep a safe distance from the truck, thereby improving the safety of pedestrians in the turning process.

Description

Pedestrian detection and warning system for truck curves

technical field

The utility model relates to a warning system, in particular to a pedestrian detection and warning system on a truck curve.

Background technique

Accidents of large trucks swallowing vehicles and entanglement of people occur from time to time. In addition to the truck driver's inattention, the vehicle's overload and speeding lead to the decline in the handling performance of the truck, the particularity of the large truck's own structure is also an important factor. It is not only the length of the body , and the front of the car is high. One problem brought about by the length of the vehicle body is that when the vehicle is turning, the driving tracks of the front and rear wheels do not coincide. The driving track of the rear inner wheel is closer to the inner side than the turning track of the front inner wheel. area becomes a danger zone. The height of the front of the car makes it difficult for the driver to observe shorter vehicles or pedestrians on the right and rear. The visual blind zone of the inner wheel on the right side of a large truck is larger than that on the left side. Generally speaking, the main line of sight in the cab of a large truck is the area with an angle of about 200 degrees on both sides of the front, and the visual range of about 60 degrees behind the side can be seen through the three rearview mirrors on the car. Therefore, for large trucks, there is a visual blind spot of about 100 degrees. Based on the previous analysis of the causes of traffic accidents, it is necessary to design a targeted auxiliary system for the visual blind spots of large trucks to reduce the tragedy of large trucks swallowing vehicles and engulfing people.

The patent number is CN 104401254 A, which proposes a human body sensing system based on infrared sensing for the dangerous area of the truck curve. It uses multiple infrared sensors distributed on both sides of the vehicle body to detect the dead area of the truck and monitor possible dangers. Warning reminder. Under this method, the driver can detect pedestrians in a certain range of areas on both sides, but the external environment is greatly disturbed, which distracts the driver's attention.

There is also an infrared imager using red imaging technology. A device similar to an ordinary camera is installed next to the rearview mirror on the right side. By rotating the angle of the camera through the control button installed in the control and monitoring terminal in the cab, the right side of the vehicle body can be monitored. There is a comprehensive grasp of the blind area of sight. However, the above methods cannot guarantee normal operation at night and in bad weather, and have limitations in applicability. Therefore, in view of the many deficiencies in the existing scheme design, it is necessary to integrate the advantages of various sensors and design a system with all-weather, high reliability and good stability.

Utility model content

The technical problem to be solved by the utility model is to provide a pedestrian detection and warning system on a truck curve, which improves the detection efficiency of pedestrians at night and ensures the safety of pedestrians when turning.

In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:

A pedestrian detection and warning system on a truck curve, characterized in that it includes a control panel, a monitoring camera, a turning sensor, an ultrasonic distance measuring device, an infrared human body sensing device and a voice prompt device, and the monitoring camera is connected to the control panel for monitoring the rear side In the area near the vehicle body, the turning sensor is connected to the control panel to detect whether the vehicle is turning to control the start of the warning system. The ultrasonic distance measuring device is connected to the control panel to detect the distance from the human body, and the infrared human body sensor is connected to the control panel to detect Whether there are pedestrians passing by, the voice prompt device is connected with the control panel to prompt pedestrians to avoid.

Further, the control panel is provided with a display screen for displaying images from the surveillance camera.

Further, the surveillance camera is arranged on the upper right side of the front of the vehicle, and the surveillance camera is arranged obliquely downward and outward, and the surveillance camera is provided with a reverse adjustment motor.

Further, the ultrasonic distance measuring device, the infrared human body sensing device and the voice prompting device are arranged on both sides of the vehicle body.

Further, the left side of the vehicle body is provided with the No. 1 ultrasonic distance measuring module on the left side, the voice prompt device on the left side, the infrared human body induction device on the left side and the No. 2 ultrasonic distance measuring module on the left side in sequence from the front to the rear of the vehicle body. The right side is provided with the No. 3 ultrasonic distance measuring module on the right side, the voice prompt device on the right side, the infrared human body induction device on the right side, the No. 2 ultrasonic distance measuring module on the right side and the No. 1 ultrasonic distance measuring module on the right side from the front to the rear of the car.

Compared with the prior art, the utility model has the following advantages and effects: the information of the target object is interpreted in the form of intelligent identification and artificial auxiliary judgment, which can reduce the misjudgment rate, and can remind the driver whether it is day or night Keep your attention focused when turning on a curve, and at the same time warn pedestrians near the dangerous area in time to keep a safe distance from the truck to improve the safety of pedestrians during the turning process.

Description of drawings

Fig. 1 is a schematic diagram of the pedestrian detection and warning system on a truck curve of the present invention.

Fig. 2 is a schematic diagram of the left side of the truck of the truck curve pedestrian detection and warning system of the utility model.

Fig. 3 is a schematic view of the right side of the truck of the truck curve pedestrian detection and warning system of the present invention.

detailed description

The utility model will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are explanations of the utility model and the utility model is not limited to the following examples.

As shown in the figure, a pedestrian detection and warning system on a truck curve of the utility model includes a control panel, a monitoring camera, a turning sensor, an ultrasonic distance measuring device, an infrared human body sensing device and a voice prompt device, and the monitoring camera is connected to the control panel. It is used to monitor the area around the rear body. The turning sensor is connected to the control panel to detect whether the vehicle is turning to control the activation of the warning system. The ultrasonic distance measuring device is connected to the control panel to detect the distance from the human body. The infrared human body sensing device and control The panel is connected to detect whether there are pedestrians passing by, and the voice prompt device is connected to the control panel to prompt pedestrians to avoid.

The control panel is provided with a display screen for displaying images from the surveillance camera. The turn sensor is connected to the steering wheel, and automatically wakes up the entire warning system by judging the change of the turning angle exceeding a certain angle range.

Surveillance camera 5 is arranged on the upper end of the right side of the front of the car, and surveillance camera 5 is arranged on the outside at an angle. The surveillance camera is provided with a reverse adjustment motor, which can effectively monitor the situation in the vicinity of the rear side body by the self-regulation of the motor. Ultrasonic distance measuring devices, infrared human body induction devices and voice prompt devices are arranged on both sides of the car body. On the left side of the car body, from the front to the rear, the No. 1 ultrasonic distance measuring module 3 on the left, the voice prompt device 1 on the left, the infrared human body sensing device 2 on the left and the No. 2 ultrasonic distance measuring module 4 on the left, the right side of the car body From the front of the vehicle to the rear of the vehicle, the No. 3 ultrasonic distance measuring module 10 on the right side, the voice prompt device 6 on the right side, the infrared human body sensing device 7 on the right side, the No. 2 ultrasonic ranging module 9 on the right side and the No. 1 ultrasonic distance measuring module on the right side. 8 from the module. The voice prompt device is placed in the middle area on both sides of the truck, and the female voice prompt is preset. The ultrasonic ranging modules are arranged asymmetrically on the baffles on both sides of the truck, and the placement density of the ultrasonic ranging modules on the right side is greater than that on the left side. The infrared human body sensing device is used as the main detection device for pedestrian detection, and the distance information detected by the auxiliary ultrasonic ranging module can provide timely feedback on the surrounding road conditions when the vehicle turns in an environment with poor light conditions at night and blurred vision.

According to the comparative analysis of different types of trucks, it can be found that the shape and size of the dangerous area formed by the inner wheel difference is mainly related to the wheelbase of the truck. Therefore, for this system, according to trucks with different wheelbases, different early warning distances are selected, combined with video monitoring, infrared sensor modules, ultrasonic ranging and other modules to effectively detect things in and around dangerous areas. Interpretation of target object information in the form of intelligent recognition and artificial assisted judgment can reduce the rate of misjudgment. It can remind the driver to maintain concentration when turning in a curve no matter day or night, and at the same time give timely warning near the dangerous area. Pedestrians maintain a safe distance from trucks, improving pedestrian safety during turns.

The specific working process of the system: During the driving process of the truck, the turning sensor connected to the steering wheel continuously monitors the driving status of the truck. When the truck detects that the truck is turning, the system judges the turning direction and activates other sensors of the system, and the system starts to work. When turning left, the driver can use the left rearview mirror to observe the pedestrians near the vehicle body, and combine the signals detected by the left ultrasonic ranging module activated in the system and the thermal infrared human body sensing device to detect the road conditions near the vehicle body in a timely manner. Accurate understanding. When turning right, since the driver is on the left side of the cab, information acquisition on the right side is particularly important. Therefore, when turning right, the monitoring camera will transmit the image of the right side of the vehicle body to the control panel of the cab in real time. At the same time, the ultrasonic ranging module and infrared human body sensing device will also assist in judging whether there are pedestrians on the right side of the vehicle body. Whether it is turning left or turning right, once pedestrians are sensed within a certain range during the system’s working process, the voice prompt device located in the middle of both sides of the vehicle body will automatically turn on, and the voice will be played in a loop to remind pedestrians to pay attention to safety and avoid trucks in time.

The above content described in this specification is only an illustration of the utility model. Those skilled in the technical field to which the utility model belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, as long as they do not deviate from the content of the specification of the utility model or go beyond the scope defined in the claims. All should belong to the protection scope of the present utility model.

Claims (5)

1. a truck at curves pedestrian detection caution system, it is characterized in that: comprise control panel, monitor photographic head, turning induction apparatus, supersonic range finder, infrared human body induction installation and sound prompt device, monitor that photographic head and control panel are connected to vehicle body near zone situation on rear side of monitoring, whether turning induction apparatus and control panel are connected to detect vehicle and turn thus control caution system and start, supersonic range finder and control panel are connected to detection and human body distance, infrared human body induction installation and control panel are connected to detect whether that pedestrian passes through, sound prompt device and control panel are connected to point out pedestrian to dodge.

2. according to the truck at curves pedestrian detection caution system described in claim 1, it is characterised in that: it is provided with on described control panel for showing the display screen monitoring camera image picture.

3. according to the truck at curves pedestrian detection caution system described in claim 1, it is characterised in that: described supervision photographic head is arranged on upper end on the right side of headstock, and monitors that photographic head is arranged in the most lower outside partially, monitors that photographic head is provided with and reversely regulates motor.

4. according to the truck at curves pedestrian detection caution system described in claim 1, it is characterised in that: described supersonic range finder, infrared human body induction installation and sound prompt device are arranged on car body both sides.

5. according to the truck at curves pedestrian detection caution system described in claim 4, it is characterized in that: on the left of described car body, be disposed with left side one ultrasonic distance measuring module, left side sound prompt device, left side infrared human body induction installation and left side two ultrasonic distance measuring module from headstock to the tailstock, on the right side of car body, be disposed with right side three ultrasonic distance measuring module, right side sound prompt device, right side infrared human body induction installation, right side two ultrasonic distance measuring module and right side one ultrasonic distance measuring module from headstock to the tailstock.