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Real time positioning system

A technology for real-time positioning and positioning tags, which is applied in the field of positioning systems and can solve the problems of positioning accuracy, communication bandwidth and signal fading, increasing system costs, and being difficult to achieve.

Inactive Publication Date: 2010-08-18
苏州工业园区优频科技有限公司
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Problems solved by technology

[0004] However, the existing wireless local area network real-time positioning system also has some problems, the most prominent of which is that the positioning accuracy is limited by the communication bandwidth and signal fading, and it is difficult to reach below 5 to 10 meters
The common solution is to improve the accuracy by increasing the AP density, but the corresponding power wiring, network wiring work and the increased number of APs not only greatly increase the cost of the system, but also limit the application of the system

Method used

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Embodiment Construction

[0027] The real-time positioning system is special in that it includes positioning tags, positioning marks, wireless network access points, and management servers. The positioning tags are installed on objects or people that need to be positioned and tracked, and the positioning marks are installed on fixed reference points. , The wireless network is used for communication measurement between the positioning tag and the wireless network access point, the wireless network access point is connected to the management server through the Internet, and the management server calculates the location of the positioning tag according to the received information. In general, the distribution of WLAN access points requires effective signal coverage of the entire positioning area, that is, the positioning tag can communicate with at least one WLAN access point at any position in the area. Positioning signs are installed near the location that requires precise positioning in a small range, a...

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Abstract

The invention relates to a real time positioning system and belongs to the field of communication technology. The real time positioning system is characterized by comprising a positioning label, a positioning mark, a wireless network access point, and a management server, wherein the positioning label is arranged on an object or personnel which need to be positioned and tracked; the positioning mark is arranged on a fixed reference point; communication and measurement are performed among the positioning mark, the positioning label and the wireless network access point by using a wireless network; the wireless network access point is connected with the management server through the internet; and the management server calculates the position of the positioning label according to the received information. Thus, due to the reasonable use of the positioning mark, the positioning accuracy is greatly improved on the premise of no substantial increase of system cost. Besides, as the positioning mark only needs to realize a simple function of periodic sending, both the power consumption and the cost of the positioning mark are greatly decreased compared with an AP. In most cases, a battery or solar energy can be used for supplying power to the positioning mark, so no power supply wiring and network wiring are needed.

Description

technical field [0001] The invention relates to a positioning system, in particular to a real-time positioning system, which belongs to the technical field of communication. Background technique [0002] Real Time Location System (RTLS) refers to a system that locates targets in real time or near real time in a designated space (office building, venue, urban area, the world) through wireless communication technology. The location information of the target is obtained by measuring the physical characteristics of radio waves. Currently, with the development of communication technology and social economy, various real-time location-based services (location-based services) are growing rapidly, and their application fields have spread throughout medical care, manufacturing, logistics, security, mining and retail industries. [0003] Looking further, real-time positioning systems are mainly divided into two categories, namely satellite-based wide-area positioning systems (such as...

Claims

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Application Information

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IPC IPC(8): G01S5/00H04W4/02
Inventor 刘昆焱朱宇红张卫中
Owner 苏州工业园区优频科技有限公司
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