A water conservancy patrol positioning and offline trajectory optimization method

Abstract

The invention discloses a water conservancy inspection positioning and offline trajectory optimization method, comprising the following steps: S1: obtain an effective starting point in the inspection; S2: start from the next point of the effective starting point, and all points need to enter the trajectory optimization algorithm module to carry out Optimization of trajectory points; S3: If the number of satellites received is less than the set value, it can be determined that the GPS signal is weak and the positioning function cannot be completed. At this time, the offline positioning function is turned on, and the collection frequency of the specified trajectory position points is used to return to offline The location data of positioning; this water conservancy inspection positioning and offline trajectory optimization method utilizes GPS technology to obtain relevant location information of patrol personnel in real time, then enters the trajectory optimization module in the present invention, and then displays the output trajectory information in the map through GIS technology, And the displayed trajectory data will be sent to the remote server in real time, so that the server system can monitor the location of the current inspectors in real time and improve the inspection efficiency.

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.