12 results about "Collision warning systems" patented technology

The application discloses a collision warning system for improving the accuracy of vehicle collision risk prediction. The application screens target vehicle pairs according to preset screening conditions. For each target vehicle pair: a collision time set of the target vehicle pair is determined based on the current position information of each vehicle in the target vehicle pair; whether a collision will occur in the vehicle in the target vehicle pair is determined based on the collision time set; and if it is determined that a collision will occur, an alarm indication is sent to the vehicle in the target vehicle pair. Before the vehicle is given a collision warning, the vehicle is screened through the preset screening conditions, and it is first determined whether the vehicle meets the triggering condition, thereby avoiding the waste of computing resources caused by giving all vehicles a collision warning. Whether a collision will occur in the vehicle is determined through the current position information of the vehicle, and the high-precision map information and the information reported by the vehicle are fully combined, so that the warning for the vehicle is more accurate.

The application discloses a multi-source sensing-based anti-collision early warning system for power distribution network construction machinery, and relates to the technical field of image analysis, which comprises the following steps: obtaining laser radar point cloud data and camera image data, obtaining laser radar distance and visual distance respectively, and performing consistency determination; when there is inconsistency, determining the reference sensor and the sensor to be adjusted by analyzing the visual recognition influence value and the radar response influence value, performing dynamic parameter adjustment on the sensor to be adjusted, obtaining the target distance based on the re-measured distance value and the reference measured distance fusion, thereby constructing a dynamic envelope volume, calculating the net safety distance, and outputting an anti-collision early warning signal, which effectively solves the problem that multi-source sensing data deviates and is inconsistent under complex environmental interference in the prior art, resulting in a decrease in distance detection reliability and affecting anti-collision early warning precision.

This invention discloses a collision avoidance warning system for intelligent vehicles, comprising: an interaction module for interacting with a device in a target scene to acquire scene environment data; the scene environment data includes multiple collision nodes and collision markers corresponding to each collision node; a data acquisition module for real-time acquisition of driving data and driving environment data of the intelligent vehicle when entering the target scene; a data analysis module for obtaining the current collision node of the intelligent vehicle based on the driving data and driving environment data, combined with the scene environment data; and a collision warning module for real-time acquisition of collision avoidance warning information about the collision markers of the current collision node and issuing a warning when the intelligent vehicle is within the warning range of the current collision node. This invention solves the technical problem of limited collision avoidance warning functionality of intelligent vehicles in complex scenarios in existing technologies.

Collision warning system (12) for a vehicle, comprising: a vision system (20) attached to the vehicle, wherein the vision system (20) provides a video of an upcoming road segment which includes at least one object (14) located on the path; a control module (22) coupled to the vision system (20), wherein the control module (22) receives the video from the vision system (20) and provides an enhanced video of the upcoming road segment that includes the object (14) on the path, the object (14) on the path being highlighted according to collision data so that it stands out from the rest of the upcoming road segment; and a visual display (24) coupled to the control module (22), wherein the visual display (24) receives the enhanced video from the control module (22) and displays the enhanced video to a driver; wherein the control module (22) provides an enhanced video of the upcoming road segment, which includes the object (14) on the path, highlighted with a color selected according to the collision data, so that it stands out from the rest of the upcoming road segment, which is provided in black and white, the highlighted object (14) on the path being overlaid on a black and white version of the video originally received from the vision system (20).

Vehicle-independent, modular collision warning system with self-sufficient solar power supply for non-destructive retrofitting to vehicle front aprons, consisting of a sensor unit (20), a power supply unit (50) and a vehicle-internal signal unit (90), characterized in that the system is designed as a completely decoupled “plug-and-play” architecture, in which the sensor unit (20) is designed as an adhesive or clamp module that can be adapted non-destructively to the underside of the vehicle front apron (10), which communicates wirelessly via a signal path (70) and in real time with the signal unit (90) located in the vehicle interior (80).

The application provides a reliability evaluation method of a forward collision warning system, and the reliability evaluation method comprises the following steps: constructing a supply value model and a demand value model of the system respectively through collected vehicle driving data, establishing a reliability evaluation model of the forward collision warning system, calculating a reliability index of the vehicle forward collision warning system and a failure probability function of the forward collision warning system, and judging the reliability of the forward warning system based on the failure probability function. The application can quantitatively evaluate the reliability of the forward collision warning system when the vehicle is driving, provide a theoretical reference for the design optimization of the forward collision warning system, and the reliability evaluation result can also be used for safety risk investigation of the vehicle applying the forward collision warning system before and during actual operation.

The present disclosure relates to a vehicle information prompting method and device, a computer readable storage medium and a vehicle, and relates to the technical field of vehicle safety assistance. The method comprises: acquiring a vehicle type of a target vehicle and a first driving speed of the target vehicle in the same lane as the vehicle during driving of the vehicle; determining a target safety distance corresponding to the target vehicle based on a second driving speed of the vehicle and the first driving speed when the vehicle type meets a target type; and outputting corresponding prompt information based on the target safety distance and a distance comparison result between the vehicle and the target vehicle. By collecting other vehicles driving in the same lane as the vehicle in real time and identifying the vehicle types of these vehicles, the target safety distance is dynamically adjusted according to the identification result, so that the vehicle collision warning system can adapt to various different road conditions, reduce false positives or false negatives of the vehicle collision warning system, and improve the driving safety of the vehicle.

This application discloses a method, device, system, and storage medium for preventing rear-end collisions in automobiles. The method includes: collecting information about targets behind the vehicle using a multi-source sensor, including at least a rear radar and a rearview camera; determining the initial collision time between the vehicle and the target based on distance and relative speed; determining correction coefficients for each type of information based on at least one of environmental information, driving status information, and lane assignment information; correcting the initial collision time based on the correction coefficients to obtain a corrected collision time; determining whether there is a collision risk between the vehicle and the target based on the corrected collision time; determining the corresponding risk level when a collision risk exists; and executing different warning actions based on at least the risk level. This solution can improve the accuracy of rear-end collision warning systems.

This invention relates to the field of intelligent connected vehicle testing and verification technology, specifically to a vehicle collision warning testing method and system based on UWB. The method comprises the following steps: installing a UWB base station, a warning device under test, and a UWB tag on both the driver vehicle and the target vehicle; initializing the testing subsystem and starting the test to acquire measured UWB data and data from the warning device under test; preprocessing and merging the data to establish a fused dataset at the same time scale; using the measured UWB data as a benchmark, and based on the fused dataset, performing a comparative and quantitative evaluation of the performance of the warning device under test; iteratively completing the test and outputting the evaluation results. The system includes a driver vehicle subsystem, a target vehicle subsystem, and a testing subsystem, executing the steps of the method. This invention reduces the testing and maintenance costs of collision warning systems, improves the testing efficiency and accuracy of warning device performance, and provides reliable data support for the optimization of warning devices.

The application discloses a kind of test methods of vehicle front collision warning system in closed site, comprising: in closed test field, linear test area, curve test area and ramp test area are laid out, target vehicle is arranged in the linear test area, curve test area and ramp test area;According to preset scene parameters, control test vehicle travels at preset speed, control target vehicle travels according to preset motion parameters;Collect test vehicle state data, target vehicle motion data and vehicle front collision warning system warning information;According to the distance between the warning information, test vehicle and target vehicle, obtain test result.Can comprehensively cover multiple vehicle driving scenarios, test parameters are accurately controllable, and test efficiency and safety are significantly improved.

The present invention relates to a collision warning system and method for a micro-mobility vehicle, comprising a proximity sensor, a speed sensor, a warning device, and a controller having a bypass mode and a warning mode. The controller compares the speed of the micro-mobility vehicle to a predetermined speed threshold, enters the bypass mode when the speed of the micro-mobility vehicle is less than the predetermined speed threshold, and enters the warning mode when the speed of the micro-mobility vehicle is greater than the predetermined speed threshold. The controller does not activate the warning device in the bypass mode, calculates an estimated time until a potential collision with an object in the warning mode, compares the estimated time until the potential collision to a predetermined time threshold, and generates a collision warning by activating the warning device in response to the estimated time until the collision being less than the predetermined time threshold.

This invention discloses a crane collision avoidance and early warning system based on the GNSS global satellite navigation system, belonging to the field of engineering safety monitoring technology. The invention includes a GNSS positioning unit, an angle sensor unit, a load sensor unit, a wind speed and direction sensor unit, an on-board data processing unit, a wireless communication unit, and a human-machine interaction unit installed on each crane. The GNSS positioning unit includes a main antenna and an auxiliary antenna for acquiring the crane's real-time position and orientation. The angle sensor unit is used to collect the boom's elevation and lateral tilt angles. The load sensor unit is used to collect the lifted weight. The wind speed and direction sensor unit is used to collect the ambient wind speed and direction. This invention can more accurately reflect the instantaneous space occupancy during equipment operation, reduce the risk of misjudgment and missed judgment due to model simplification, and provide a more reliable basis for collision early warning.