Water conservancy patrol positioning and offline trajectory optimization method

Abstract

The invention discloses a water conservancy patrol positioning and offline trajectory optimization method. The method comprises the following steps of: S1, acquiring an effective starting point in patrol; S2, starting from a next point of the effective starting point, making all points enter a trajectory optimization algorithm module to optimize trajectory points; S3, if a number of the received satellites is smaller than a set value, determining that a GPS signal is weak and a positioning function cannot be completed, starting an off-line positioning function at the moment, acquiring frequency according to a specified track position point, and returning off-line positioning position data. According to the water conservancy patrol positioning and offline trajectory optimization method, a GPS technology is utilized, relevant position information of an inspector is obtained in real time, then the track optimization module involved in the invention is entered, the output track informationis displayed in a map through a GIS technology, and the displayed track data is sent to a remote server in real time, so that a server system can monitor the position of the current inspector in realtime, and the patrol efficiency is improved.

Description

technical field [0001] The invention relates to a water conservancy patrol positioning and off-line trajectory optimization method. Background technique [0002] At present, in the process of receiving GPS signals, it is relatively easy to receive interference from external objects, such as buildings, viaducts, tunnels, dense forests and the influence of the weather, and the inspection of reservoirs and rivers may interfere with GPS signals in terms of geographical location. There are many factors, which lead to inaccurate location received by smart phones and GPS handheld devices, which leads to inaccurate positioning of inspectors. [0003] At present, in the GIS technology of the mobile terminal, processing and displaying massive geospatial data has become a major difficulty. The existing technology mainly stores the massive geographic spatial data on the remote server, and then the mobile terminal obtains the geographic spatial data through the network. The acquired geo...

AI Technical Summary

Problems solved by technology

[0002] At present, in the process of receiving GPS signals, it is relatively easy to receive interference from external objects, such as buildings, viaducts, tunnels, dense forests and the influence of the weather, and the inspection of reservoirs and rivers may interfere with GPS signals in terms of geographical location. There are many factors, which lead to inaccurate location received by smart phones and GPS handheld devices, which leads to inaccurate positioning of inspectors

[0003] At present, in the GIS technology of the mobile terminal, processing and displaying massive geospatial data has become a major difficulty. The existing technology mainly stores the massive geographic spatial data on the remote server, and then the mobile terminal obtains the geographic spatial data through the network. The acquired geospatial data is displayed on the smart phone. During the field inspection process, the mobile phone cannot receive the network due to the geographical location of the reservoir and the river may be in a relatively remote mountainous area or an area with a relatively low coverage of the GPRS base station. In this special environment, the mobile device cannot display the map normally, and the inspectors in the field also lose their reference and lose their direction, which is not conducive to the completion of field inspection tasks.