Pedestrian crossing safety warning device

Abstract

The present application relates to the technical field of road traffic, and specifically discloses a pedestrian crossing safety warning device, which comprises: a sensing camera, which is used for detecting whether there is a detection object in the road and tracking the position of the detection object; a controller, which is in signal connection with the sensing camera; an indicating signal lamp, which is located on both sides of the road and is controlled by the controller, and emits a flashing signal when there is a detection object on both sides of the road; and a position signal lamp, which is arranged in an array above the road and is controlled by the controller, and emits a display signal when a detection object is above the position signal lamp during the process of passing through the road, thereby solving the problem of lacking convenient and effective warning means and warning devices to guide pedestrians crossing and vehicle driving in the road section of the main road or expressway with small pedestrian crossing demand.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of road traffic, and particularly discloses a pedestrian crossing safety warning device. BACKGROUND

[0002] The main channel connecting the town and the expressway is usually wide, the vehicles running on the main road or the expressway are fast, and the green belts on both sides of the road block the line of sight, so that the risk of pedestrian crossing on the road section is high.

[0003] At present, the avoidance methods for the above problems mainly include the following two ways:

[0004] (1) A sidewalk is additionally arranged on the road and is matched with a traffic light, so as to facilitate the pedestrian crossing, but the scheme is suitable for the road section with a large amount of pedestrian crossing demand, but when the scheme is implemented on the road section with a small amount of pedestrian crossing demand, the frequent red light will interfere with the fast traffic of the vehicles, affect the traffic efficiency of the vehicle flow, and easily cause the traffic jam and the like in the peak period.

[0005] (2) A sidewalk is additionally arranged on the road but is matched with only a yellow light reminding the vehicles to slow down, which can reduce the influence on the fast traffic of the vehicles, but the safety is poor.

[0006] In summary, at present, the main road or the road section of the expressway with a small amount of pedestrian crossing demand lacks convenient and effective warning means and warning devices for guiding the pedestrian crossing and the vehicle running, and with the development of the target detection technology in the traffic video recognition, such as RCNN, Fast R-CNN, Faster R-CNN, YOLO and the like, in the current traffic video recognition, the features of the input image can be extracted through the convolutional neural network, the features are mapped to each candidate region, and the classifier is used to determine whether each candidate region contains the object of interest (for example, the pedestrian and the vehicle), and the regressor is used to further refine the boundary box of the candidate region, but at present, there is no warning device for warning and guiding the pedestrian crossing through the target detection technology in the road section, therefore, the inventor provides the pedestrian crossing safety warning device in order to solve the above problems. SUMMARY

[0007] The application aims to solve the problem that the main road or the road section of the expressway with a small amount of pedestrian crossing demand lacks convenient and effective warning means and warning devices for guiding the pedestrian crossing and the vehicle running.

[0008] In order to achieve the above purpose, the basic scheme of the application provides a pedestrian crossing safety warning device, which comprises:

[0009] A sensor camera, used to detect whether there is a target in the road and to track the position of the target;

[0010] A controller is connected to the sensing camera and is equipped with a data processing module that performs image processing on the images transmitted by the sensing camera using target detection technology.

[0011] Indicator traffic lights, located on both sides of the road and controlled by the controller, flash when a detection object is present on either side of the road;

[0012] The location signal lights consist of several lights arranged in an array above the road and are all controlled by the controller. When a detected object passes through the road, the location signal light located directly above the detected object's position emits a display signal.

[0013] Furthermore, it also includes:

[0014] A vehicle position detection probe is used to detect the position information of vehicles in the road and transmit the detected images to the controller.

[0015] An alarm device, controlled by the controller, is used to send an audible warning signal to the detected object;

[0016] Warning signal lights, the warning quotation light being used to illuminate warning light signals onto the ground to indicate the location of oncoming vehicles on the road to the detection target;

[0017] A remote terminal, which is signal-connected to the controller.

[0018] Furthermore, the detection targets include any one or more combinations of pedestrians, non-motorized vehicles, and obstacles.

[0019] Furthermore, it also includes a mounting bracket for mounting the sensor camera, controller, indicator lights, position lights, vehicle position detection probe, and alarm.

[0020] Based on the same inventive concept, the present invention provides a pedestrian crossing safety early warning method, which includes using the above-mentioned safety early warning device to install and warn pedestrians crossing the street.

[0021] Furthermore, the method for installing the aforementioned safety warning equipment to provide early warnings for pedestrians crossing the street is as follows:

[0022] When the sensor camera does not detect pedestrians or non-motorized vehicles on either side of the road or in the road, the indicator lights and position lights remain off.

[0023] When the sensor camera detects pedestrians or non-motorized vehicles on or within the road, the indicator lights flash, simultaneously tracking the location of the pedestrians or non-motorized vehicles and controlling the indicator lights directly above them to turn on.

[0024] Furthermore, the steps for controlling the activation of the traffic lights directly above pedestrians or non-motorized vehicles are as follows:

[0025] Step S1: In the controller, the image information of the road is acquired by the sensing camera, and the road in the image is evenly divided into several detection areas according to its width direction, and the traffic lights at each position fall into each detection area respectively.

[0026] In step S2, the sensor camera continuously acquires and transmits road image information to the controller. The controller processes the images transmitted by the sensor camera using target detection technology and determines whether there are pedestrians or non-motorized vehicles in each detection area.

[0027] Step S3: When a pedestrian or non-motorized vehicle is detected in one or more detection areas, the controller controls the signal lights in the corresponding detection areas to be powered on and emit light signals.

[0028] Furthermore, in step S3, the controller presets a distance threshold between vehicles and pedestrians or non-motorized vehicles in the direction of travel on the road. When the distance between vehicles and pedestrians or non-motorized vehicles in the road is less than the threshold, the alarm sends an audible alarm signal to the pedestrians or non-motorized vehicles.

[0029] Furthermore, in step S3, when the distance between a vehicle and a pedestrian or non-motorized vehicle on the road is less than a threshold, the warning signal light shines a warning light signal onto the ground in the detection area where the vehicle is located, so as to indicate the position of the oncoming vehicle to the pedestrian or non-motorized vehicle on the road.

[0030] Furthermore, in step S3, when a pedestrian or non-motorized vehicle is detected to be continuously located in a certain detection area, the controller sends an alarm signal to the remote terminal.

[0031] The effect of this solution is:

[0032] 1. This invention is applicable to main roads or expressways where the demand for pedestrian crossings is low and there is greenery covering both sides of the road. It can effectively alert vehicles on the road whether there are pedestrians who need to cross the road and display the location of pedestrians in real time, thereby helping drivers to sense the status of pedestrians crossing the street from a distance, so as to maintain a steady vehicle speed and prevent traffic accidents.

[0033] 2. Compared with traditional traffic light settings, in road sections with low pedestrian crossing demand, this invention has less impact on vehicle traffic and avoids traffic jams caused by vehicles staying on the road for a long time.

[0034] 3. Compared with the traditional yellow light prompting to slow down, this invention can monitor the status information of pedestrians on the road in real time, thereby providing signal prompts to vehicles on the road, which can better warn vehicles and improve the safety of road traffic.

[0035] 4. This invention not only serves as a safety warning for vehicles on the road, but also provides sound and light warnings to pedestrians when vehicles exhibit abnormal driving behavior (such as driver fatigue, failure to observe traffic lights and position indicators, or failure to slow down when there are pedestrians on the road), further improving road safety performance.

[0036] 5. This invention determines the location of pedestrians on the road by dividing the road into various detection zones. This not only accurately displays the location of pedestrians to vehicles on the road to improve the smoothness of vehicle traffic, but also displays the location or impending location of vehicles with abnormal driving to pedestrians, enabling pedestrians to better avoid vehicles with abnormal driving, thereby improving the safety performance of crossing the road and avoiding the occurrence of road traffic accidents.

[0037] 6. This invention monitors the condition of roads in real time. Since the main passage connecting towns and expressways is shaded by greenery on both sides and there are few pedestrians nearby, when pedestrians or other monitored objects in the road show abnormalities (pedestrians staying in the road for a long time due to physical reasons, or obstacles in the road), an alarm signal can be sent to a remote terminal to provide information feedback, thereby enabling staff to investigate and deal with the road condition. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1 A schematic diagram of a pedestrian crossing safety early warning device according to an embodiment of this application is shown;

[0040] Figure 2 A system diagram of a pedestrian crossing safety early warning device according to an embodiment of this application is shown. Detailed Implementation

[0041] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0042] The reference numerals in the accompanying drawings include: 1. Sidewalk; 2. Post; 3. Frame; 4. Sensor camera; 5. Indicator light; 6. Position indicator light.

[0043] A pedestrian crossing safety early warning device, implementing, for example Figure 1 and Figure 2 As shown, it includes:

[0044] Installation bracket: The installation bracket is installed on the sidewalk of a main road or expressway where the demand for pedestrian crossing is small and the road is shaded by greenery on both sides. Specifically, the installation bracket includes columns 2 located on both sides of the road and a frame 3 set between the columns 2 on both sides.

[0045] Sensor camera 4: Sensor camera 4 is located on the left and right sides of the frame 3. Sensor camera 4 is used to detect whether there is a detection object in the road and to track the position of the detection object. In this embodiment, the detection objects are pedestrians, non-motorized vehicles and obstacles in the road that need to pass through the road.

[0046] Vehicle position detection probe: The vehicle position detection probe is located at the bottom of the frame 3. The vehicle position detection probe is used to detect the position and speed of vehicles on the road.

[0047] Controller: The controller is connected to the sensor camera 4 and the vehicle position detection probe, and is equipped with a data processing module that performs image processing on the images transmitted by the sensor camera 4 and the vehicle position detection probe using target detection technology.

[0048] Indicator traffic lights 5: Indicator traffic lights 5 are located on both sides of the road. The controller controls the opening and closing of indicator traffic lights 5 by controlling the energization and de-energization of the relays in the relay group. When the sensor camera 4 does not detect any objects on or within the road, the indicator traffic lights 5 remain off. When the sensor camera 4 detects any objects on or within the road, the indicator traffic lights 5 emit a flashing signal, warning drivers of vehicles on the road in the form of a bright red flashing light.

[0049] Position signal lights 6: There are several position signal lights 6 arranged in an array on the front and rear sides of the frame 3 above the pedestrian walkway 1. Each position signal light 6 is controlled by a controller. Similarly, the controller controls the opening and closing of each position signal light 6 by controlling the energization and de-energization of the relays in the relay group. When the object being detected passes through the road, the position signal light 6 located directly above the position of the object being detected will emit a display signal, which will be a small red light to warn the drivers of vehicles on the road.

[0050] Alarm: The alarm is controlled by a controller. Similarly, the controller controls the alarm to turn on and off by controlling the energization and de-energization of the relays in the relay group, and is used to send an audible warning signal to the detected object.

[0051] Warning signal lights: Several warning signal lights are arranged in an array on the lower surface of the frame 3 above the sidewalk 1. The warning signal lights are all controlled by the controller. Similarly, the controller controls the opening and closing of the warning signal lights by controlling the energization and de-energization of the relays in the relay group. The warning signal lights are used to illuminate the ground with warning light signals to indicate the position of oncoming vehicles in the road to the detection target.

[0052] Remote terminal: The signal connection for wireless communication between the remote terminal and the controller.

[0053] Battery module: The battery module supplies power to the controller, indicator lights 5, position lights 6, alarm and warning lights, while the sensor camera 4 and the vehicle position detection camera are powered by their internal backup power supplies.

[0054] In the implementation of this invention, the sidewalk 1 is divided into multiple detection areas according to the direction of pedestrians crossing the road. Each position indicator light and alarm signal light are located in each detection area. The threshold for the distance between the vehicle and the sidewalk 1 and the threshold for the vehicle speed are preset in the controller. When the sensing camera 4 does not detect pedestrians or non-motorized vehicles on both sides of the road or in the road, the indicator signal light 5 and the position signal light 6 remain in an off state.

[0055] When the sensor camera 4 detects pedestrians or non-motorized vehicles on or within the road, the indicator light 5 flashes a signal. Simultaneously, it tracks the position of the pedestrians or non-motorized vehicles and the positions of vehicles traveling on the road, determining which detection area each pedestrian or non-motorized vehicle and vehicle is located within. It then activates the position indicator light 6 within that detection area. During this process, if the vehicle speed exceeds a set threshold or the distance between the vehicle and the pedestrian crossing 1 falls below a set threshold, the alarm emits an audible alarm signal to the pedestrians or non-motorized vehicles on the road, and the warning indicator light flashes towards the location of the vehicle. The detection area emits warning light signals on the ground to alert pedestrians or non-motorized vehicles to the location of oncoming vehicles. This serves to inform vehicles on both sides of the road whether pedestrians need to cross, display the real-time location of pedestrians, and detect the status of vehicles on the road. This helps drivers sense pedestrians crossing the street from a distance, maintain a steady speed, and prevent traffic accidents. It can also show pedestrians the location or impending location of vehicles with abnormal driving behavior, allowing them to better avoid such vehicles and thus improving road safety and preventing traffic accidents.

[0056] Based on the same inventive concept, this embodiment provides a pedestrian crossing safety early warning method, including installing and issuing early warnings for pedestrians crossing the street using the aforementioned safety early warning device. The specific control strategy is as follows:

[0057] When the sensor camera 4 does not detect pedestrians or non-motorized vehicles on either side of the road or within the road, the indicator light 5 and the position light 6 remain off. When the sensor camera 4 detects pedestrians or non-motorized vehicles on either side of the road or within the road, the indicator light 5 flashes a signal, tracks the position of pedestrians or non-motorized vehicles and the position of vehicles traveling on the road, and controls the position light 6 directly above the pedestrians or non-motorized vehicles to turn on. In case of abnormal driving by a vehicle, an audible alarm signal and a warning light signal are sent to the pedestrians.

[0058] The specific steps for controlling the activation of the traffic light 6 directly above pedestrians or non-motorized vehicles, and for sending audible alarm signals and warning light signals to pedestrians, are as follows:

[0059] Step S1: In the controller, the image information of the road is acquired by the sensing camera 4, and the road in the image is evenly divided into several detection areas according to its width direction, and the traffic lights 6 at each position fall into each detection area respectively.

[0060] In step S2, the sensing camera 4 continuously acquires and transmits road image information to the controller. The controller processes the images transmitted by the sensing camera 4 using target detection technology and determines whether there are pedestrians or non-motorized vehicles in each detection area.

[0061] Step S3: When a pedestrian or non-motorized vehicle is detected in one or more detection areas, the controller controls the traffic lights in the corresponding detection area to power on and emit light signals. During this process, the controller presets a distance threshold between vehicles and pedestrians or non-motorized vehicles in the direction of travel on the road. When the distance between vehicles and pedestrians or non-motorized vehicles is less than the threshold, the alarm emits an audible alarm signal to the pedestrians or non-motorized vehicles. When the distance between vehicles and pedestrians or non-motorized vehicles is less than the threshold, the warning traffic lights illuminate the ground in the detection area where the vehicle is located to indicate the position of oncoming vehicles to pedestrians or non-motorized vehicles. When a pedestrian or non-motorized vehicle is continuously detected in a certain detection area, the controller sends an alarm signal to the remote terminal.

[0062] This method is suitable for main roads or expressways where pedestrian crossing demand is low and the roadsides are shaded by greenery. It effectively alerts vehicles to the presence of pedestrians on both sides of the road and displays their real-time locations, helping drivers to sense pedestrian crossings from a distance, maintain stable vehicle speeds, and prevent traffic accidents. Furthermore, by dividing the road into detection zones to determine pedestrian positions, it not only accurately displays pedestrian locations to vehicles, improving traffic flow, but also indicates the location or impending appearance of vehicles with abnormal driving patterns, allowing pedestrians to better avoid such vehicles and thus improving road safety and preventing traffic accidents.

[0063] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A pedestrian crossing safety early warning device, characterized in that, include: A sensor camera, used to detect whether there is a target in the road and to track the position of the target; A controller is connected to the sensing camera and is equipped with a data processing module that performs image processing on the images transmitted by the sensing camera using target detection technology. Indicator traffic lights, located on both sides of the road and controlled by the controller, flash when a detection object is present on either side of the road; The location signal lights consist of several lights arranged in an array above the road and are all controlled by the controller. When a detected object passes through the road, the location signal light located directly above the detected object's position emits a display signal. Also includes: A vehicle position detection probe is used to detect the position information of vehicles in the road and transmit the detected images to the controller. An alarm device, controlled by the controller, is used to send an audible warning signal to the detected object; Warning signal lights, the warning quotation light being used to illuminate warning light signals onto the ground to indicate the location of oncoming vehicles on the road to the detection target; A remote terminal, which is signal-connected to the controller.

2. The pedestrian crossing safety early warning device according to claim 1, characterized in that, The detection targets include any one or more combinations of pedestrians, non-motorized vehicles, and obstacles.

3. A pedestrian crossing safety early warning device according to claim 1 or 2, characterized in that, It also includes a mounting bracket for mounting the sensor camera, controller, indicator lights, position lights, vehicle position detection probe, and alarm.

4. A pedestrian crossing safety early warning method, characterized in that, This includes installing and issuing warnings for pedestrians crossing the street using the safety warning device described in any one of claims 1 to 3.

5. A pedestrian crossing safety early warning method according to claim 4, characterized in that, The method for installing and issuing warnings for pedestrians crossing the street using the safety warning device according to any one of claims 1 to 3 is as follows: When the sensor camera does not detect pedestrians or non-motorized vehicles on either side of the road or in the road, the indicator lights and position lights remain off. When the sensor camera detects pedestrians or non-motorized vehicles on or within the road, the indicator lights flash, simultaneously tracking the location of the pedestrians or non-motorized vehicles and controlling the indicator lights directly above them to turn on.

6. The pedestrian crossing safety early warning method according to claim 5, characterized in that, The steps to control the activation of traffic lights directly above pedestrians or non-motorized vehicles are as follows: Step S1: In the controller, the image information of the road is acquired by the sensing camera, and the road in the image is evenly divided into several detection areas according to its width direction, and the traffic lights at each position fall into each detection area respectively. In step S2, the sensor camera continuously acquires and transmits road image information to the controller. The controller processes the images transmitted by the sensor camera using target detection technology and determines whether there are pedestrians or non-motorized vehicles in each detection area. Step S3: When a pedestrian or non-motorized vehicle is detected in one or more detection areas, the controller controls the signal lights in the corresponding detection areas to be powered on and emit light signals.

7. A pedestrian crossing safety early warning method according to claim 6, characterized in that, In step S3, the controller presets a distance threshold between vehicles and pedestrians or non-motorized vehicles in the direction of travel on the road. When the distance between vehicles and pedestrians or non-motorized vehicles is less than the threshold, the alarm sends an audible alarm signal to the pedestrians or non-motorized vehicles.

8. A pedestrian crossing safety early warning method according to claim 7, characterized in that, In step S3, when the distance between a vehicle and a pedestrian or non-motorized vehicle on the road is less than a threshold, the warning signal light shines a warning light signal onto the ground in the detection area where the vehicle is located, so as to indicate the position of the oncoming vehicle to the pedestrian or non-motorized vehicle on the road.

9. A pedestrian crossing safety early warning method according to any one of claims 6 to 8, characterized in that, In step S3, when a pedestrian or non-motorized vehicle is detected to be continuously located in a certain detection area, the controller sends an alarm signal to the remote terminal.

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