Personnel real-time positioning device based on wireless sensor network

A wireless sensor network, real-time positioning technology, applied in wireless communication, network topology, advanced technology and other directions, can solve the problem that the real-time positioning device cannot take into account the indoor and outdoor conditions at the same time, the positioning accuracy is not high, and the equipment cost is high, and the guarantee system is achieved. The effect of versatility, high positioning accuracy, and long battery life

Inactive Publication Date: 2011-11-30
江苏中科泛联物联网科技股份有限公司
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Problems solved by technology

[0006] Traditional real-time positioning devices cannot take into account indoor and outdoor conditions at the same time, and are suitable for non-li

Method used

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  • Personnel real-time positioning device based on wireless sensor network
  • Personnel real-time positioning device based on wireless sensor network
  • Personnel real-time positioning device based on wireless sensor network

Examples

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Example Embodiment

[0018] Reference Figure 1-4 This specific implementation adopts the following technical solutions: it includes a positioning terminal 1, a positioning base station 2, and a host computer 3. The positioning terminal 1 is connected to the host computer 3 through a wireless signal, and the host computer 3 is connected to the positioning base station 2.

[0019] The positioning terminal 1 is worn by each person who needs to be positioned. Each positioning terminal has a wireless communication device, which can be used as a signal source to periodically send wireless positioning signals (that is, heartbeat signals) and receive control from the positioning base station. Information, real-time adjustment of the heartbeat cycle and transmission power, so as to achieve dynamic energy saving.

[0020] In the method for a positioning terminal to dynamically adjust system parameters in real time, the system parameters are transmission power and heartbeat period, where: main energy consumption...

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Abstract

A real-time personnel positioning device based on a wireless sensor network relates to the technical field of wireless sensor networks. It comprises a positioning terminal (1), a positioning base station (2) and a host computer (3), wherein the positioning terminal (1) is connected to the host computer (3) through wireless signals, and the host computer (3) is connected to the positioning base station (2). Its positioning equipment takes into account both indoor and outdoor conditions, suitable for non-line-of-sight transmission and long-distance transmission, low-cost equipment, low power consumption, and high positioning accuracy.

Description

technical field [0001] The invention relates to the technical field of wireless sensor networks, in particular to a real-time personnel positioning device based on wireless sensor networks. Background technique [0002] The positioning target of the real-time positioning device is various personnel (such as management personnel, temporary visitors and persons under guardianship, etc.) in a specific area (such as prisons, hospitals, residential areas, campuses, etc.), and the positioning device can be divided into Two categories: range-based positioning technology and range-free positioning technology. [0003] The positioning technology based on ranging can be divided into: 1. Trilateral positioning and multilateral positioning: a) signal strength (RSS); b) signal propagation time / time difference (TOA / TDOA / RTOF); c) received signal phase (PDOA) ; d) Near-field electromagnetic ranging (NFER). 2. Angle of receiving signal (AOA, Arrival of Angle). 3. Multilateral measuremen...

Claims

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Application Information

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IPC IPC(8): H04W64/00H04W84/18
CPCY02D30/70
Inventor 赵壮高雪王钦王江张锦刚
Owner 江苏中科泛联物联网科技股份有限公司
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