12 results about "Road surveying" patented technology

Described are systems and techniques for road surveying. Information indicative of a sequence of target road sections each comprising one or more road segments can be used to configure a vehicle to perform a road survey by traveling each target road section of the sequence. Data acquisition can be started from onboard sensors of the vehicle based on detecting a first trigger event where a current position of the vehicle is within a configured threshold distance from a first target road section of the sequence. Respective road survey data can be obtained for each road segment in each target road section of the sequence, and can comprise a subset of acquired data obtained from the onboard sensors between a corresponding start and end point automatically determined for the respective road segment based on detecting the occurrence of trigger events corresponding to the current vehicle position and / or heading.

This invention discloses a method for transporting tall, long arch ribs on complex mountain roads. The core process includes road surveying and transportation simulation, a proportional arch rib transportation passability test, precise loading and locking of the arch ribs and installation of attitude monitoring devices, transportation along a preset trajectory and point-of-care inspection, and three-level graded acceptance and control. This invention employs a self-righting, low-center-of-gravity counterweight vertical transport scheme, equipped with prefabricated tooling that can adapt to longitudinal slopes and small-radius turns, and features a gravity balance sensor to automatically adjust the arch rib attitude. A dedicated braking system is customized for the transport vehicle. This invention effectively lowers the transportation center of gravity and road traffic requirements, reduces road widening projects, saves costs, protects the environment, solves the problem of transporting tall, long arch ribs on complex mountain roads with steep longitudinal slopes and small-radius turns, improves transportation safety, avoids arch rib deformation and damage, and ensures construction quality.

The invention relates to the related technical field of road surveying and mapping, and discloses a geological radar carrying back frame for road surveying and mapping, which comprises a geological detection radar, a foldable driving structure mounted on the geological detection radar, and a back frame structure carried by an operator, through structural innovation and mechanical-electrical integration design, the problems of portability, terrain adaptability and operation comfort of a traditional geological radar are solved, the field operation efficiency and the data acquisition quality are remarkably improved, and the radar is suitable for various complex environments such as road detection and geological exploration.

The utility model relates to the technical field of road measurement, in particular to a road flatness measuring device which comprises a vehicle body and a measuring structure, the measuring structure is arranged at the lower end of the vehicle body and comprises a supporting rod, a measuring assembly and a feedback assembly, the feedback assembly is arranged at the lower end of the vehicle body, and the measuring assembly comprises measuring wheels, a supporting frame and a base plate. The supporting frame is hinged to the supporting rod, the base plate is hinged to the supporting frame, the measuring wheel is rotatably arranged at one end of the supporting frame and supported on the ground, and the base plate abuts against the feedback assembly. According to the utility model, the baffle plate is slidably arranged in the baffle block, when the measuring device operates, the baffle plate can block broken stones and push the broken stones to move together, so that the situation that the measuring wheel is damaged by the broken stones due to the contact between the measuring assembly and the broken stones is prevented.

Described are systems and techniques for road surveying. Information indicative of a sequence of target road sections each comprising one or more road segments can be used to configure a vehicle to perform a road survey by traveling each target road section of the sequence. Data acquisition can be started from onboard sensors of the vehicle based on detecting a first trigger event where a current position of the vehicle is within a configured threshold distance from a first target road section of the sequence. Respective road survey data can be obtained for each road segment in each target road section of the sequence, and can comprise a subset of acquired data obtained from the onboard sensors between a corresponding start and end point automatically determined for the respective road segment based on detecting the occurrence of trigger events corresponding to the current vehicle position and / or heading. Unlocking insights from geodata, the present disclosure further relates to improvements in sustainability and environmental developments: together we create a safe and liveable world.

This invention discloses a roadbed survey unit, detection system, and analysis method for addressing road hazards. The unit includes a survey box with a settlement detection mechanism inside for detecting roadbed settlement depth. A horizontal adjustment unit is located diagonally at the bottom of the survey box. The settlement detection mechanism includes a detection plate, the top of which is driven downwards by a pneumatic component. This invention relates to the field of road surveying technology. This roadbed survey unit, detection system, and analysis method for addressing road hazards, by incorporating a settlement detection mechanism, utilizes a pneumatic component to move the detection plate vertically downwards. The moving plate moves synchronously through the pulling of a traction rope and the cooperation of a support component. This not only enables subsequent roadbed settlement detection but also improves the accuracy and efficiency of the detection process by cleaning the test surface with a sweeping plate before settlement detection.

This invention relates to the field of image data processing technology, specifically to a digital highway surveying method and system based on machine vision. The method includes: acquiring multimodal data collected by a vehicle-mounted mobile scanning system; obtaining a hazard type matching deviation value under the current sampling based on the multimodal data; obtaining the feature vector of the multimodal data in the neural network under the current sampling, and determining the identifiable impact performance value under the current sampling based on the hazard type matching deviation value; obtaining random coefficients under the current sampling based on the identifiable impact performance value; determining the hazard type saliency under the current sampling based on the identifiable impact performance value and the random coefficients; dynamically adjusting the attention weights of the neural network using the hazard type saliency under the current sampling, and outputting the highway hazard identification result. This invention can improve the accuracy of edge feature extraction for multiple types of highway hazards.

The utility model provides a kind of measuring device for highway reconnaissance design belongs to road surveying equipment technical field.The utility model embodiment provides the measuring device for highway reconnaissance design, including staff component, drill, direct current motor, power component and support and adjusting mechanism, by rotating and setting drill in the end of staff component, direct current motor and the power component of power supply to direct current motor are built-in in the inside of staff component, when needing to insert staff component into the soil of ground survey point, only need to insert drill into the soil of ground survey point, then start direct current motor, make drill automatic drilling into the soil of ground survey point by direct current motor drive drill rotation, simultaneously, drill drives staff component to insert into the preset position in ground soil, so as not to need to insert staff component into the ground survey point by measurement personnel manually, save work time and improve measurement efficiency, can greatly reduce the labor intensity of measurement personnel, not easy to cause measurement personnel to appear fatigue.

The present invention relates to a technology for collecting map information including terrain information through a collectible open map service without actual road measurement information and generating a simulation image by processing an image reflecting a type, a terrain condition, and the like of a road.

The invention relates to a full-automatic three-dimensional road surveying and mapping device which comprises two walking steering vehicles walking front and back, a scale plate, an identification camera facing the scale plate and an observation camera facing the front of a road are installed on the front walking steering vehicle, and a closed sensor installation box is installed on the rear walking steering vehicle. The sensor mounting box is filled with liquid, a vertical supporting rod is hinged to the upper end of the sensor mounting box, a laser distance measuring sensor facing the scale plate is fixedly connected to the upper end of the supporting rod, and a balance weight located in the liquid is fixedly connected to the lower end of the supporting rod. The road surveying and mapping device can stably work under different topographic conditions, automatically measure the distance, the rotating angle and the slope synchronously, remarkably improves surveying and mapping efficiency and data reliability, is reasonable in structure, high in automation degree and wide in application range, remarkably improves the precision and integrity of road surveying and mapping, and also reduces manual operation intensity.

The invention relates to the technical field of image data processing, in particular to a digital road investigation method and system based on machine vision, and the method comprises the steps: obtaining multi-modal data collected by a vehicle-mounted mobile scanning system; based on the multi-modal data, obtaining a hidden danger type matching deviation value under the current sampling; acquiring a feature vector of the multi-modal data in the neural network under the current sampling, and determining a recognizable influence performance value under the current sampling in combination with the hidden danger type matching deviation value; according to the recognizable influence performance value under the current sampling, obtaining a random coefficient under the current sampling; based on the recognizable influence performance value and the random coefficient under the current sampling, determining the hidden danger type saliency under the current sampling; and dynamically adjusting the attention weight of the neural network by using the hidden danger type saliency under the current sampling, and outputting a road hidden danger recognition result. According to the invention, the edge feature extraction accuracy of multiple types of road hidden dangers can be improved.

Provided in the present disclosure are an image processing-based road measurement method and a related device. The image processing-based road measurement method comprises: on the basis of a preset sampling period, acquiring road images containing road markings, adjacent road images having an overlapping area of a preset size; extracting from the road images marking pixel coordinates of the road markings in a camera coordinate system; on the basis of internal matrix parameters and external matrix parameters of the camera coordinate system, converting the marking pixel coordinates into marking world coordinates in a world coordinate system; on the basis of the overlapping area, converting all of the marking world coordinates into target marking coordinates in the same world coordinate system; and fusing the target marking coordinates to obtain a road measurement curve.