CN104501780A - Vehicle-mounted data acquisition system based on digital camera and laser scanner - Google Patents

Abstract

The invention discloses a vehicle-mounted data acquisition system based on a digital camera and a laser scanner, and relates to the technical field of measuring devices for object positions. It includes an elevating turntable located inside the car body or on the roof, and the elevating turntable is provided with a digital camera, a laser scanner, a GPS module and a data processing module, and the digital camera, the laser scanner and the GPS module are respectively connected with the data processing module For electrical connection and data interaction with it, the laser scanner is used to collect the data and angle information of the measured object, and the laser scanner is used to collect the three-dimensional image photos of the measured object. The system uses laser scanners and digital cameras to collect data, which can make up for the shortcomings of the color of monochrome point cloud data and the low density of distant point cloud data that cannot accurately obtain the position of the measured object, improving the accuracy and accuracy of the test Spend.

Description

Vehicle Data Acquisition System Based on Digital Camera and Laser Scanner

technical field

The invention relates to the technical field of measuring devices for object positions, in particular to a vehicle-mounted data acquisition system based on a digital camera and a laser scanner.

Background technique

The key to digital city construction lies in the acquisition, management and update of urban spatial information, which is positional, multi-dimensional and time-sequential. Data is the carrier of information, so the location, multi-dimensionality, and timing of urban spatial information determine that urban spatial data has certain location accuracy, time accuracy, and complete spatial coordinates and description forms. Therefore, the accuracy of spatial data collection is the key technology of digital city. Due to the monochromaticity and point cloud density of point cloud data are affected by various factors such as vehicle speed and point frequency, the vehicle-mounted single laser scanning system makes it difficult to directly use point cloud data for ground feature extraction, judgment and 3D modeling. Factors such as color and point cloud density are too small, resulting in lower positioning accuracy of ground objects, unnatural model colors, and rigid textures.

Contents of the invention

The technical problem to be solved by the present invention is to provide a vehicle-mounted data acquisition system based on a digital camera and a laser scanner. The system uses a laser scanner and a digital camera to collect data, which can make up for the color and distance of monochromatic point cloud data. The point cloud data density is too small to accurately obtain the disadvantages of the position of the measured object, which improves the accuracy and accuracy of the test.

In order to solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a vehicle-mounted data acquisition system based on a digital camera and a laser scanner, which is characterized in that it includes a lifting turntable located inside the vehicle body or on the roof, and the lifting A digital camera, a laser scanner, a GPS module, and a data processing module are installed on the turntable, and the digital camera, laser scanner, and GPS module are respectively electrically connected to the data processing module, and perform data interaction with it, and the laser scanner is used for collecting The data and angle information of the measured object, the laser scanner is used to collect the three-dimensional image photos of the measured object, the GPS module is used to locate the measured object, and the data processing module is collected according to the digital camera, laser scanner and GPS module The data is used to locate the measured object and collect point cloud data.

The beneficial effects of adopting the above technical solution are: the system is easy to use, and once installed, it does not need to be debugged before each operation; it solves the problem of single point cloud data monochrome and high-precision acquisition with low density in the distance; it solves the problem of three-dimensional model The problem of unnatural color and texture; the combination of digital camera and laser scanner solves the problem of unclear image of optical camera and insufficient LIDAR data under poor light conditions, and improves the accuracy and accuracy of the test.

Description of drawings

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Fig. 1 is a functional block diagram of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In the following description, a lot of specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described here, and those skilled in the art can do it without departing from the meaning of the present invention. By analogy, the present invention is therefore not limited to the specific examples disclosed below.

As shown in Figure 1, the present invention discloses a vehicle-mounted data acquisition system based on a digital camera and a laser scanner, including a lifting turntable located inside the car body or on the roof, and the lifting turntable is provided with a digital camera, a laser scanning instrument, GPS module and data processing module, the digital camera, laser scanner and GPS module are electrically connected to the data processing module respectively, and perform data interaction with it, and the laser scanner is used to collect the data and angle information of the measured object, The laser scanner is used to collect the three-dimensional image photos of the measured object, the GPS module is used to locate the measured object, and the data processing module locates and monitors the measured object according to the data collected by the digital camera, laser scanner and GPS module. Point cloud data collection.

The system is easy to use, and once installed, it does not need to be debugged before each operation; it solves the problem of high-precision acquisition of single point cloud data in monochrome and low density in the distance; it solves the problem of unnatural colors and textures of 3D models; digital cameras and The combination of laser scanners solves the problems of unclear images of optical cameras and insufficient LIDAR data under poor light conditions, and improves the accuracy and accuracy of the test.

Claims (1)

1. the vehicle carried data collecting system based on digital camera and laser scanner, it is characterized in that: comprise the lifting turntable be positioned on vehicle body or roof, described lifting turntable is provided with digital camera, laser scanner, GPS module and data processing module, described digital camera, laser scanner and GPS module are electrically connected with data processing module respectively, and carry out data interaction with it, laser scanner is for gathering data and the angle information of measured object, laser scanner is for gathering the 3-D view photo of measured object, GPS module is used for positioning measured object, described data processing module is according to digital camera, the data of laser scanner and GPS module collection position measured object and cloud data collection.