A GPS/PDA collaborative investigation terminal and its collaborative investigation method

Abstract

The invention discloses a GPS / PDA cooperative investigation terminal and a cooperative investigation method thereof. The terminal includes: a local investigation part and a data sharing communication part, and the local investigation part and the data sharing communication part are connected by an inter-process communication channel The local investigation part includes a data processing module, and the data sharing communication part includes an instant messaging service proxy module; the method includes: the transmission end selects the transmission object of the user identification, and transmits the shared data to the instant messaging service proxy module through an inter-process communication channel , and then transmitted to other terminals through the instant communication channel; after receiving the data, the instant communication service agent module at the receiving end analyzes the data through the inter-process communication channel, and finally applies or displays the data results. This method realizes data sharing, real-time communication and collaborative work of various survey terminals in land survey and supervision, and has a friendly mobile device user identification function.

Description

technical field [0001] The invention relates to the field of information communication, in particular to a GPS / PDA coordinated investigation terminal and a coordinated investigation method thereof. Background technique [0002] Land resources are one of the most precious treasures of human beings. It is of great significance to quickly, accurately and real-time grasp the status quo of land use to promote the rational use, planning and scientific management of land resources. [0003] At present, in the land survey, the staff basically hold a single-user mobile terminal on site to conduct a single independent operation. The sites that need to collect data information on the site need to be investigated one by one, and the collected data can only be processed accordingly in the collection terminal. Assuming that in the actual measurement of a wide river, if you want to describe the outline of the river, you must first collect data point by point on one side of the river, and t...

AI Technical Summary

Problems solved by technology

[0005] The main disadvantages of the above method are: First, the traditional survey method needs to consume huge resources, because a single survey can only be investigated one by one through one terminal, so a single survey consumes a lot of energy and takes a long time

Generally speaking, existing technologies such as single-user terminals and PDA's cumbersome communication methods based on IP protocols cannot meet the growing land survey and supervision tasks.

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