A car signal light warning system based on intelligent connected vehicle system

Abstract

The application relates to a car signal lamp warning system based on an intelligent networked traffic system. The system comprises the following steps: a vehicle control terminal determines whether a turn signal needs to be turned on according to current position positioning information of the vehicle collected by a GPS locator; in the case that the turn signal needs to be turned on, it is determined whether the turn signal is correctly turned on according to the opening conditions of left and right turn signals detected by a turn signal opening signal detection device; in the case that the turn signal is not turned on, a warning unit is controlled to send a continuous early warning signal to continuously warn the driver to turn on the correct turn signal; if the correct turn signal is not turned on within a preset time, current human face information of the driver collected by a human face recognition camera module is analyzed to determine whether there is a lane changing signal, the warning unit is controlled to send a single early warning signal to warn the driver to turn on the correct turn signal. The system effectively avoids the situation that the driver forgets to turn on the turn signal during driving, and helps to standardize the driving behavior.

Description

Technical Field

[0001] This application relates to the field of intelligent connected transportation technology, and in particular to a vehicle signal light warning system based on an intelligent connected transportation system. Background Technology

[0002] Road traffic safety is a global social issue. In recent years, the development of intelligent connected transportation technology is expected to comprehensively improve traffic safety through vehicle-road cooperation, intelligent driving, and other means. The intelligentization and connectivity of vehicles can effectively alleviate traffic pressure and solve various traffic problems. Based on intelligent connected transportation (CAVH) system technology, high-precision positioning and navigation services have been publicly available to accurately locate and identify the lane where the vehicle is located, reminding drivers to drive in a standardized manner. It can remind drivers to leave when crossing solid lines, remind drivers to change lanes in advance before entering long solid line sections, and also has functions such as emergency lane occupation reminders, highway ramp exit reminders, complex elevated road entrance reminders, and multi-passenger lane occupation reminders. However, during vehicle operation, it has been observed that drivers frequently forget to use their turn signals before changing lanes or turning. This improper driving behavior is a major cause of traffic accidents. To address this issue, application number 201410708582.9 discloses an automatic turn signal control system for automobiles. This system involves installing a forward-facing camera, a video processing mechanism, and a control processor on the vehicle. Based on the video signal from the acquired image and the signal from the vehicle's onboard sensors, it determines whether the vehicle has changed lanes and sends the lane change signal to the processing controller. The control processor then controls the turn signal switch. Specifically, it requires acquiring an image of the vehicle ahead while traveling straight within the lane lines, obtaining the grayscale value change characteristics in the image, determining the position of the lane lines in the image, and obtaining the lane line marking result in the image. However, in practical applications, in addition to considering the situation in front of the vehicle, it is also necessary to consider information such as whether there are vehicles approaching from behind. Therefore, it is not possible to simply analyze the situation in front of the vehicle and mechanically determine whether to change lanes. Thus, how to reasonably remind the driver to turn on the turn signal before objectively needing to change lanes or subjectively wanting to change lanes is a problem that requires further research. Summary of the Invention

[0003] Therefore, it is necessary to provide a vehicle signal warning system based on an intelligent connected transportation system to address the existing technical problem of drivers forgetting to use their turn signals before changing lanes.

[0004] A vehicle signal light warning system based on an intelligent connected transportation system includes an on-board control terminal, a GPS locator, a face recognition camera module, a turn signal activation detection device, and a warning unit;

[0005] The vehicle control terminal is electrically connected to the GPS locator, the face recognition camera module, the turn signal detection device and the warning unit respectively.

[0006] The GPS locator is used to collect the vehicle's current location information;

[0007] The facial recognition camera module is used to collect the driver's current facial information;

[0008] The turn signal activation detection device is used to detect the activation status of the left and right turn signals;

[0009] The vehicle control terminal determines whether the vehicle needs to activate its turn signals based on the current location information of the vehicle collected by the GPS locator. If the turn signals need to be activated, it determines whether the turn signals are correctly activated based on the activation status of the left and right turn signals detected by the turn signal activation signal detection device. If the turn signals are not activated, the control warning unit issues a continuous warning signal to continuously remind the driver to activate the correct turn signals. If the correct turn signals are not activated within a preset time, the system analyzes the driver's current facial information collected by the facial recognition camera module to determine whether there is a lane change signal, and then issues a single warning signal to remind the driver to activate the correct turn signals.

[0010] In one embodiment, the face recognition camera module includes a fixing mechanism, a stabilization mechanism, a camera, and a processor;

[0011] The camera is fixedly mounted on the image stabilization mechanism, which is mounted on the fixed mechanism. The fixed mechanism is fixedly mounted in the driver's cab of the vehicle, so that the camera's field of view includes the driver's face. The processor is electrically connected to the camera.

[0012] The image stabilization mechanism is used to prevent the camera from failing to capture clear facial images due to shaking. The fixing mechanism is used to fix the camera in the driver's cab of the vehicle. The processor recognizes and processes the facial images to obtain facial information.

[0013] In one embodiment, determining whether the vehicle needs to activate its turn signals based on the vehicle's current location information collected by the GPS locator includes:

[0014] Based on the current location information of the vehicle collected by the GPS locator, determine whether the vehicle's location coordinates are within the right turn, left turn, and / or U-turn lanes;

[0015] When the vehicle's location coordinates are within the right turn, left turn, and / or U-turn lane, it is determined that the vehicle needs to activate its turn signal;

[0016] If the vehicle's location coordinates are not within the right turn, left turn, and / or U-turn lanes, it is determined that the vehicle does not need to activate its turn signal.

[0017] In one embodiment, determining whether the turn signals are correctly activated based on the activation status of the left and right turn signals detected by the turn signal activation signal detection device includes:

[0018] Based on the lane type where the vehicle's positioning coordinates are located, determine the type of turn signal that should be activated.

[0019] If the current activation status of the vehicle's left and right turn signals is inconsistent with the type of turn signal that should be correctly activated, it is determined that the turn signals are not being activated correctly.

[0020] If the current activation status of the vehicle's left and right turn signals matches the type of turn signal that should be correctly activated, then the turn signal should be correctly activated.

[0021] In one embodiment, the step of analyzing the driver's current facial information collected by the facial recognition camera module to determine whether a lane change signal exists includes:

[0022] The driver's current facial information collected by the facial recognition camera module is analyzed to determine the driver's facial orientation.

[0023] A lane change signal is indicated when the driver's face is tilted to one side for 5 consecutive seconds and the cumulative time exceeds 3 seconds.

[0024] In one embodiment, the system further includes a human-machine interface;

[0025] The human-machine interface is electrically connected to the vehicle control terminal. The human-machine interface is used to display the warning unit settings interface, vehicle information, and warning status.

[0026] The aforementioned vehicle signal warning system based on the intelligent connected transportation system effectively utilizes the intelligent connected transportation system to facilitate the judgment of vehicle driving conditions and analyze driver behavior to determine whether a warning is necessary. When a vehicle is in a left turn / right turn / U-turn lane, it is required to use its turn signal according to relevant regulations, thus sending a continuous warning signal. If the corresponding turn signal is activated, the continuous warning signal is stopped. The activation of the turn signal can be detected by a turn signal activation detection device. After the turn signal is activated, its corresponding activation signal is transmitted to the microprocessor of the vehicle control terminal, which then sends a stop warning signal to the warning unit.

[0027] When a driver's face frequently turns to one side, it usually indicates an attempt to change lanes. In this case, a single warning signal is sent. If the conditions for changing lanes are not met, the driver needs to observe again before changing lanes. This ensures that drivers avoid forgetting to use their turn signals before changing lanes on roads with heavy traffic, thereby effectively reducing traffic accidents between vehicles traveling in the same direction caused by failure to use turn signals when changing lanes.

[0028] Compared with the prior art, this application has the following advantages: by using a high-precision GPS locator in conjunction with an intelligent connected transportation system, it is convenient to obtain the vehicle's location information on the road, which can be used to determine whether the vehicle is within the turn signal area, thereby achieving continuous warning; by using a facial recognition camera module to analyze whether the driver has a lane change signal and send a single warning signal to the warning unit, the driver can decide whether to turn on the turn signal based on the actual situation; it effectively avoids drivers forgetting to turn on the turn signal while driving, which helps to regulate driving behavior. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of a car signal light warning system based on an intelligent connected transportation system in one embodiment.

[0030] Figure 2 This is a schematic diagram of the judgment process of a vehicle traffic light warning system based on an intelligent connected transportation system in one embodiment. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0032] like Figure 1 As shown, a vehicle signal light warning system based on an intelligent connected transportation system includes an on-board control terminal, a GPS locator, a face recognition camera module, a turn signal activation detection device, and a warning unit.

[0033] The vehicle control terminal is electrically connected to the GPS locator, the facial recognition camera module, the turn signal activation signal detection device, and the warning unit. The GPS locator is used to collect the vehicle's current location information. The facial recognition camera module is used to collect the driver's current facial information. The turn signal activation signal detection device is used to detect the activation status of the left and right turn signals. Based on the vehicle's current location information collected by the GPS locator, the vehicle control terminal determines whether the vehicle needs to activate the turn signals. If the turn signals need to be activated, it determines whether the turn signals are correctly activated based on the activation status of the left and right turn signals detected by the turn signal activation signal detection device. If the turn signals are not activated, the warning unit issues a continuous warning signal to continuously warn the driver to activate the correct turn signals. If the correct turn signals are not activated within a preset time, the driver's current facial information collected by the facial recognition camera module is analyzed to determine if a lane change signal exists. The warning unit then issues a single warning signal to warn the driver to activate the correct turn signals.

[0034] In one embodiment, the face recognition camera module includes a fixing mechanism, a stabilization mechanism, a camera, and a processor;

[0035] The camera is fixedly mounted on a stabilization mechanism, which is in turn mounted on a fixing mechanism. The fixing mechanism is fixedly mounted in the driver's cab of the vehicle, ensuring that the camera's field of view includes the driver's face. The processor is electrically connected to the camera. The stabilization mechanism prevents the camera from failing to capture clear facial images due to shaking. The fixing mechanism secures the camera in the driver's cab of the vehicle. The processor recognizes and processes the facial images to obtain facial information.

[0036] In one embodiment, determining whether the vehicle needs to activate its turn signals based on the current location information of the vehicle collected by the GPS locator includes:

[0037] Based on the vehicle's current location information collected by the GPS locator, it is determined whether the vehicle's location coordinates are within the right turn, left turn, and / or U-turn lane; if the vehicle's location coordinates are within the right turn, left turn, and / or U-turn lane, it is determined that the vehicle needs to activate its turn signal; if the vehicle's location coordinates are not within the right turn, left turn, and / or U-turn lane, it is determined that the vehicle does not need to activate its turn signal.

[0038] In one embodiment, determining whether the turn signals are correctly activated based on the activation status of the left and right turn signals detected by the turn signal activation signal detection device includes:

[0039] Based on the lane type where the vehicle's positioning coordinates are located, determine the type of turn signal that should be correctly activated; if the current activation status of the vehicle's left and right turn signals is inconsistent with the type of turn signal that should be correctly activated, determine that the turn signals are not correctly activated; if the current activation status of the vehicle's left and right turn signals is consistent with the type of turn signal that should be correctly activated, determine that the turn signals are correctly activated.

[0040] In one embodiment, the step of analyzing the driver's current facial information collected by the facial recognition camera module to determine whether a lane change signal exists includes:

[0041] The driver's facial information collected by the facial recognition camera module is analyzed to determine the driver's facial orientation. If the driver's face is tilted to one side for 5 consecutive seconds and the cumulative time exceeds 3 seconds, a lane change signal is detected.

[0042] In one embodiment, the system further includes a human-machine interface; the human-machine interface is electrically connected to the vehicle control terminal, and the human-machine interface is used to display the warning unit setting interface, vehicle information, and warning status.

[0043] This application, based on the effective use of intelligent connected transportation systems, facilitates the judgment of vehicle driving conditions and analyzes driver behavior to determine whether a warning is necessary. When a vehicle is in a left turn / right turn / U-turn lane, it is required to use its turn signal according to relevant regulations, thus sending a continuous warning signal. If the corresponding turn signal is activated, the continuous warning signal is stopped. The activation of the turn signal can be detected by a turn signal activation detection device. After the turn signal is activated, its corresponding activation signal is transmitted to the microprocessor of the vehicle control terminal, which then sends a stop warning signal to the warning unit.

[0044] When a driver's face frequently turns to one side, it usually indicates an attempt to change lanes. In this case, a single warning signal is sent. If the conditions for changing lanes are not met, the driver needs to observe again before changing lanes. This ensures that drivers avoid forgetting to use their turn signals before changing lanes on roads with heavy traffic, thereby effectively reducing traffic accidents between vehicles traveling in the same direction caused by failure to use turn signals when changing lanes.

[0045] Example 1

[0046] A vehicle traffic light warning system based on an intelligent connected transportation system includes an on-board control terminal, a GPS locator, a facial recognition camera module, a turn signal activation detection device, and a warning unit. The intelligent connected transportation system can acquire map data and match it with the positioning coordinates obtained by the high-precision GPS locator to determine whether the vehicle is in a left turn / right turn / U-turn lane. The on-board control terminal is electrically connected to the GPS locator, the facial recognition camera module, the turn signal activation detection device, and the warning unit.

[0047] The facial recognition camera module can effectively capture the driver's facial features turning to one side during vehicle operation, i.e., detect the driver's behavior of looking at the rearview mirror. After the camera recognizes a face, it can detect the direction of face rotation. It outputs a left rotation signal when the face rotates 5°-30° to the left and a right rotation signal when the face rotates 10°-50° to the right. The effective rotation angle can be adjusted according to the driver's behavior. The processor recognizes and processes the facial image to obtain facial information.

[0048] The turn signal detection device is used to detect whether the left or right turn signal is on. It can be determined by detecting the current in the circuit when the turn signal is lit, as long as it can detect and transmit the signal to the vehicle control terminal. No specific limitation is made here.

[0049] The vehicle control terminal includes a wireless communication transmission module, a microprocessor, and a data storage device. The microprocessor processes and analyzes the vehicle's positioning coordinates and status information received by the high-precision GPS locator through the wireless communication transmission module to determine whether the vehicle is within the turn signal area. The judgment criteria can be programmed into the microprocessor in practical applications, allowing adjustment of the distance between the vehicle and the U-turn or turning intersection after entering the corresponding lane, thereby adjusting the starting point for sending continuous warning signals. It also determines the presence of lane change signals by receiving information from a facial recognition camera module. Furthermore, it can establish a database of driver facial features before lane changes based on the driver's driving habits, facilitating personalized settings. The vehicle control terminal includes a human-machine interface using a color LED display screen to show the warning unit settings interface, vehicle information, and warning status.

[0050] The warning unit is electrically connected to the vehicle control terminal. The warning unit receives the warning signal sent by the vehicle control terminal and issues a warning.

[0051] like Figure 2As shown, after the engine is started, the vehicle signal warning system determines whether the vehicle is within the turn signal area by verifying whether the vehicle's positioning coordinates are within the left turn / right turn / U-turn lane. If so, it sends a continuous warning signal to the warning unit until the correct turn signal is activated. If not, it further determines whether a lane change signal exists. The determination of a lane change signal is based on analyzing the information transmitted by the facial recognition camera module. If the driver's face is deviated to one side for more than 3 seconds within 5 consecutive seconds, a single warning signal is sent to the warning unit. If there is no signal of the driver's face deviating to one side within 5 consecutive seconds, the cumulative time of deviating to that side is reset to zero.

[0052] Based on intelligent connected transportation systems, vehicle traffic light warning systems include the following scenarios:

[0053] a. When the vehicle control terminal determines that the vehicle is in the right turn lane, it sends a continuous warning signal to the warning unit. The warning unit continues to issue warnings until the vehicle control terminal receives the right turn signal activation signal transmitted by the turn signal activation signal detection device.

[0054] b. When the vehicle control unit determines that the vehicle is in the straight lane, but analyzes the information transmitted by the facial recognition camera module and finds that the driver's face has been deviated to one side for more than 3 seconds within a continuous 5 seconds, a single warning signal is sent to the warning unit. The warning unit issues a single warning, and the driver decides whether to activate the turn signal based on the observation results. For example, if the vehicle is preparing to change lanes to the left, it observes the left rearview mirror in advance and triggers a single warning. However, if there are continuous vehicles behind on the left, the driver does not activate the turn signal and continues to wait for a lane change opportunity. If, after observation, it is found that it is a suitable lane change opportunity, the driver activates the turn signal and changes lanes in a timely manner.

[0055] c. When the vehicle control terminal determines that the vehicle is in the U-turn lane, it sends a continuous warning signal to the warning unit. The warning unit continues to issue warnings until the vehicle control terminal receives the left turn signal activation signal transmitted by the turn signal activation signal detection device.

[0056] In addition, the facial recognition camera module can determine whether a car is parked on the side of the road or is preparing to move to the left to merge into traffic after entering the elevated road, or is preparing to exit the elevated road or highway on the right or to park on the side of the road. If a lane change signal is detected, the warning unit can issue a single warning.

[0057] For roads without lane markings, information collected by a facial recognition camera module is used to determine whether a lane change signal has been issued.

[0058] Example 2

[0059] Based on Embodiment 1, the vehicle control terminal includes a human-machine interface, which uses a color LED display screen to display the warning unit setting interface, vehicle information and warning status.

[0060] The warning unit can provide voice prompts or warning sounds, and the warning unit settings interface can be used to adjust the prompt method and volume.

[0061] In non-warning mode, the human-machine interface can display the vehicle's driving location information; in warning mode, the human-machine interface will pop up a warning window until it is manually closed or the warning mode ends.

[0062] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0063] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An intelligent vehicle communication system based automobile signal light warning system characterized in that, The vehicle-mounted control terminal, the GPS locator, the face recognition camera module, the turn signal opening signal detection device and the warning unit are connected by electric signals. The GPS locator is used for collecting the current position information of the vehicle. The face recognition camera module is used for collecting the current face information of the driver. The turn signal opening signal detection device is used for detecting the opening conditions of the left and right turn signals. The vehicle-mounted control terminal determines whether the vehicle needs to turn on the turn signal according to the current position information of the vehicle collected by the GPS locator. The face recognition camera module includes a fixing mechanism, an anti-shake mechanism, a camera and a processor. The camera is fixedly installed on the anti-shake mechanism, and the anti-shake mechanism is installed on the fixing mechanism. The fixing mechanism is fixedly installed in the driver's cabin of the vehicle, so that the camera's shooting field of view includes the driver's face. The processor is electrically connected with the camera. The anti-shake mechanism is used for preventing the camera from failing to collect a clear face image due to shaking. The fixing mechanism is used for fixing the camera in the driver's cabin of the vehicle. The processor identifies and processes the face image to obtain the face information. 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2. The intelligent transportation system-based automobile signal lamp warning system according to claim 1, characterized in that, the driver's current face information collected by the face recognition camera module is analyzed to determine whether there is a lane change signal, including: the driver's current face information collected by the face recognition camera module is analyzed to determine the deflection of the driver's face; when the deflection of the driver's face is that the driver's face is deflected to one side for more than 3s within 5s, there is a lane change signal.

3. The intelligent transportation system based car signal light warning system of claim 1, wherein The system further comprises a man-machine operation interface; the man-machine operation interface is electrically connected with the vehicle-mounted control terminal, and the man-machine operation interface is used to display a warning unit setting interface, automobile information and a pre-warning state.

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