A handheld device for urban geographic data collection

Abstract

The invention discloses a handheld device for collecting urban geographic data, which includes a handheld master device, a building measurement slave device, a road measurement slave device and an altitude slave device. A liquid crystal touch device is fixedly connected in the middle of the front end of the handheld master device. A display screen, a PLC circuit board is fixedly connected to the middle of the inner cavity of the handheld main machine device, a microprocessor is fixedly connected to the PLC circuit board, the building measurement sub-machine device is an L-shaped shell, and the building measurement The lower end of the sub-machine device is fixedly connected with a card slot piece, and a clip joint table is movably clipped in the clip slot piece, the lower end of the clip joint table is rotatably connected with a support rod through a first rotating shaft, and the end of the support rod passes through a second rotating shaft. A foot plate is rotatably connected, the casing of the road measurement sub-machine device is a triangular cone, and the right part of the inner cavity of the altitude sub-machine device is fixedly connected with a GPRS altimeter and a mechanical altimeter. The device is rich in functions, practical, and has certain promotion value.

Description

technical field [0001] The invention relates to the technical field of geographic information equipment, in particular to a handheld device for collecting urban geographic data. Background technique [0002] There are many types of geographic data in cities, which can be generally divided into three categories: surface, line, and point data. For example, the bottom of a building, the land area of ​​a school, and the land area of ​​a factory are all area data, and roads are generally line data. Smaller features or various locations are point data. The difference between geographic data and ordinary data is that each data has latitude and longitude coordinate values. Therefore, this device should be able to input geographic coordinates (east longitude, north latitude, altitude) or Relative coordinates (X (horizontal coordinate), Y (vertical coordinate), Z (height)), three-dimensional geographic data requires all three coordinates, and plane data only needs two coordinate value...

AI Technical Summary

Problems solved by technology

The purpose of collecting urban geographic data is to collect the above-mentioned coordinates and attribute information into the system, and provide data basis and reference for map drawing, geographic analysis, spatial location decision-making, urban research, etc. The existing equipment information input steps are complex and difficult, not It is beneficial to practical use. For this reason, we propose a handheld device for urban geographic data collection. Existing geographic data collection devices generally use multiple extension devices or various types of sub-monitoring devices to achieve three-dimensional data collection of geographic data. For example, the current There is a related solution recorded in the patent technology CN206095227U, but in the above solution, the data monitoring between each extension device or sub-device is independent, and each monitoring sub-device needs to be calibrated one by one before entering the measurement area, so that the entire measurement takes longer

Images