10 results about "Vehicle detector" patented technology

The utility model provides a kind of low altitude security spectrum unmanned aerial vehicle detector, including substrate, the top of the substrate is fixedly installed with box, the bottom of the box is fixedly installed with positioning mechanism, the moving end top of the positioning mechanism is fixedly installed with buffer clamp group, the top of the positioning mechanism is fixedly installed with detector body by buffer clamp group clamping installation, the back upper end of the box is fixedly installed with hinged part, the main buffer spring of the buffer clamp group, side buffer spring and damper of the device adopt synergistic effect, can effectively absorb and slow down the vibration generated in the jolt of transportation or use, avoid detector body damage, make up the deficiency of prior art without buffer structure, ball on side clamping plate and bearing plate, not only reduce clamping friction damage, also auxiliary adjustment detector position, enhance clamping stability, provide reliable protection for detector body, satisfy the demand of actual application to stable protection.

The application discloses a traffic intersection traffic light control method, including collecting real-time data, presetting pedestrian quantity range, presetting vehicle flow length range, calculating special vehicle intersection, special vehicle active regulation communication light, traffic accident dredging. The application obtains the latitude and longitude coordinate information of the special vehicle position and the latitude and longitude coordinate information of the intersection center position captured by the corresponding Beidou positioning equipment of the vehicle detector through the signal control machine, calculates the special vehicle driving path intersection, controls the traffic signal lamp of the special vehicle driving direction intersection to be green by the signal control machine, timely opens the green channel for the special vehicle, provides more efficient and safe driving route for the special vehicle, improves the emergency response speed and rescue efficiency; according to the vehicle flow and the pedestrian flow, the traffic intersection traffic light is regulated, the change of the traffic flow can be responded in real time, and the road traffic capacity and the traffic management level are improved.

This utility model relates to the field of vehicle inspection technology and provides an automatically positioning vehicle detector device, including a support plate with a sliding groove and a cavity. A screw is rotatably mounted on the inner wall of the sliding groove, with one end of the screw extending into the cavity. A slider is threaded onto the screw and slidably connected to the inner wall of the sliding groove. An electric slide rail is fixedly mounted on the top of the slider, and a housing is fixedly mounted on the sliding block of the electric slide rail. A camera for detecting the underside of a vehicle is fixedly mounted on the top of the housing. The automatically positioning vehicle detector device provided by this solution solves the technical problem that existing detectors, when detecting the underside of a vehicle, cannot mark and locate problem areas, resulting in additional time spent locating the specific damage location in subsequent processing, thus reducing repair efficiency.

The utility model relates to a parking stall lock technical field, specifically disclose a kind of suspension type parking stall lock, comprising: lock body, install in the upper space of parking stall, for blocking or limiting vehicle to enter parking stall;Driving mechanism, the driving mechanism is installed on the garage above parking stall, and it is flexibly connected with lock body by connecting piece, so that its lock body is hung in the upper space of parking stall;Vehicle detector and siren;The driving mechanism includes the signal receiver for controlling start, and the signal transmitter compatible with signal receiver;The utility model starts siren after detecting vehicle to enter parking stall by vehicle detector, to remind driver to move car or remote call property or parking stall owner to handle parking stall being occupied;And lock body is hung in the upper space of parking stall by driving mechanism through connecting piece, can avoid being influenced by parking stall ponding.

This invention relates to the field of Internet of Things (IoT) technology, and in particular to a parking lot navigation method and system based on a ceiling-mounted vehicle detector. The method includes: detecting a vehicle parked in a corresponding parking space using the ceiling-mounted vehicle detector and activating a Bluetooth detection thread; detecting a mobile Bluetooth terminal within the corresponding parking space and associating it with that space; detecting the mobile Bluetooth terminal again and determining its relative position to the associated parking space; generating a navigation route and controlling the flashing lights of the ceiling-mounted vehicle detector according to the generated route to guide the user to the associated parking space; obtaining the location of the mobile Bluetooth terminal and dynamically controlling the switching of the ceiling-mounted vehicle detector between Bluetooth nodes and detection nodes within the parking lot; determining whether the distance between the Bluetooth mobile terminal and the corresponding parking space is less than a set distance threshold; if so, stopping navigation; otherwise, continuing navigation. This invention utilizes a ceiling-mounted vehicle detector to achieve parking lot navigation without user intervention, offering high efficiency and convenience.

The application provides a vehicle detector data repair performance analysis method considering multi-factor influence, and belongs to the technical field of intelligent traffic information. The application specifically comprises the following steps: building an expressway road network model based on VISSIM traffic simulation software, and generating expressway multi-source data by using the expressway road network model; obtaining the repair value of the expressway traffic flow parameter by repairing the real value of the expressway traffic flow parameter; constructing a vehicle detector data repair performance analysis model based on a BP neural network structure, training the vehicle detector data repair performance analysis model by using the expressway multi-source data and the repair value of the expressway traffic flow parameter; and quantitatively analyzing the vehicle detector data repair performance by using the trained vehicle detector data repair performance analysis model. The application can make the vehicle detector data repair performance reach an ideal level, has guiding significance for traffic managers to arrange expressway multi-source detection equipment, and further improves the reliability of traffic data.

The utility model relates to a vehicle flow adjusting system technical field especially based on tunnel intelligent adjustable deceleration strip system of vehicle flow data drive, its technical scheme includes: the first vehicle detector that fixed installation is in the tunnel entrance statistics to the vehicle that enters the tunnel, the second vehicle detector that fixed installation is in the tunnel exit statistics to the vehicle that drives out the tunnel, signal light is fixedly installed in the tunnel entrance, a plurality of dynamic speed limit signs are fixedly installed in the tunnel, a plurality of adjustable deceleration strips are fixedly installed in the tunnel entrance. The utility model can adjust the radian of deceleration strip according to the traffic flow in the tunnel, prevent the adjustable deceleration strip of low radian from being insufficient to force all drivers to decelerate to the expected speed, and prevent the adjustable deceleration strip of high radian from causing the bumping influence to the vehicle. According to the traffic flow in the tunnel, the height of adjustable deceleration strip can be adjusted in real time, to realize the safe traffic of vehicle.

The invention belongs to the technical field of road traffic safety, and discloses an autonomous road traffic system vehicle rollover risk early warning method and system, and the method comprises the steps: collecting the kinetic parameters, road parameters and environmental parameters of an autonomous vehicle; based on GPS / INS positioning data, in combination with a roadside unit collaborative awareness technology, space-time synchronization and dynamic mapping of a vehicle planning track and road environment parameters are carried out, and a space-time coupling sequence used for rollover prediction is constructed; calculating a real-time rollover risk index according to the four-wheel load obtained by the data of the vehicle detector; according to the real-time rollover risk index, taking the kinetic parameters, the road parameters and the environmental parameters of the current vehicle as input, and adopting an extreme random tree algorithm to predict a rollover risk index value in a future preset time; and judging a rollover risk level according to the predicted rollover risk index value, and outputting early warning information for an autonomous road traffic system to perform safety control and path adjustment.

This product is a vehicle detection device that can be installed in parking lots and other similar locations, and uses a camera and sensors built into the main unit to manage the entry and exit of vehicles.

An external environment recognition apparatus includes an in-vehicle detector and a microprocessor. The microprocessor is configured to perform: recognizing a surface of the road and a three-dimensional object on the road for each frame as the road surface information based on a three-dimensional point cloud data including distance information for every one of a plurality of detection points in a matrix shape acquired in every frame by the in-vehicle detector; determining an interval of detection points of the three-dimensional point cloud data as a scanning angular resolution of the electromagnetic wave based on a size of a predetermined three-dimensional object and a distance to the predetermined three-dimensional object; and taking a predetermined avoidance measure so that at least one of the scanning angular resolution and a number of detection points corresponding to the interval of detection points does not exceed a predetermined limit value.