What is lbs?

lbs refers to services centered around geographical location data. Mobile terminals use wireless communication networks (or satellite positioning systems) and are based on spatial databases to obtain the user's geographical location coordinate information and integrate it with other information. To provide users with required location-related value-added services.

Although the concept of LBS was proposed not long ago, its development has a long history. LBS was first developed in the United States and originated from the Global Positioning System (GPS) deployed for military applications. It was subsequently applied in fields such as surveying and mapping and vehicle tracking and positioning. When GPS became commercialized, a large number of applications with positioning as its core function emerged. It was not until the late 1990s that LBS and the technologies involved received widespread attention and application.

According to the different query technologies of the service, it can be divided into point query service and continuous query service. 1. Point query service refers to one-time execution based on query conditions and return of query results. This query technology is often used in active acquisition services, such as users querying the nearest bus stop. 2. Continuous query updates the query structure based on continuous changes in the user's location. Typically, passive reception services are implemented through continuous queries, such as weather forecast SMS reminder services.

According to the different objects using the service, it can be divided into specific services and general services. 1. Specific services refer to services provided for specific service objects (specific users or specific areas), such as cultural relic interpretation services in museums. Specific services need to maintain specific data collections, such as information about museum artifacts, etc. 2. General services refer to the general services provided by communication providers to all users. Common common services include directories, gateways, location tools, paths and navigation, etc.