Real-time Data Collection and Management System for Emergency Spatial Data Based on Cross-platform Development Framework

摘要

Geospatial data collection is the most critical and fundamental part of Geographic Information System (GIS), and the tempo-spatial characteristics of geospatial data largely determine the value of GIS. Particularly, in the field of public safety, the emergency spatial data with strong standard and high timeliness is an important guarantee for the emergency command system to make rapid and accurate emergency command decisions. In the traditional emergency spatial data collection process, not only expensive data collection equipment needs to be purchased, but also complicated data post-processing is required to obtain emergency spatial data in standard geographic information data format. In this paper, a real-time emergency spatial data collection and management system based on cross-platform technology is developed to solve the problems in the traditional emergency spatial data collection process. The system is divided into two subsystems: mobile data collection subsystem and data management subsystem. The mobile data collection subsystem adopts Uni-app, a cross-platform development framework, which can develop application that can be used in the form of native application on the Android and IOS platform, mobile web application and Mini program. At the same time, it provides the real-time data editing operation mode, avoids the tedious and complicated data post-processing process, and significantly improves the emergency spatial data collection efficiency. The data management subsystem is based on Vue, a progressive JavaScript framework. Data managers can easily customize the collection template, and complete the work of data audit, management, sharing and format exchange, ensuring the standard and consistency of emergency spatial data. At the same time, this paper takes the collection of emergency spatial data in Shenzhen University Town as an example to demonstrate the basic usage process of our system.