Ultra-wide band indoor positioning system and method based on UWB
An indoor positioning and ultra-broadband technology, applied in the field of UWB-based ultra-broadband indoor positioning systems, can solve the problems of poor flexibility and scalability at the same time, the application of portable devices is not widely, and the Bluetooth transmission distance is short. Scalability, communication system flexibility, low power consumption
Inactive Publication Date: 2018-10-19
浙江优勝科技有限公司
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Problems solved by technology
[0002] UWB (UltraWideband) is a carrier-free communication technology that uses nanosecond to picosecond-level non-sine wave narrow pulses to transmit data. By transmitting extremely low-power signals on a wide spectrum, UWB can be within a range of about 10 meters. The data transmission rate of hundreds of Mbit / s to several Gbit / s can be realized within a few minutes, and the influence of electromagnetic wave radiation on the human body will be small, and the application area will be wide, which is different from traditional wireless systems with relatively narrow bandwidth such as Bluetooth and WI-FI. , UWB can send a series of very narrow low-power pulses on a wide frequency, while the commonly used Bluetooth and WI-FI have relatively large limitations, and the Bluetooth transmission distance is short. Bluetooth and Wi-Fi technology calculates the distance by measuring the intensity change of the transmitted signal , easily affected by air flow, etc., so the positioning is inaccurate, the anti-interference ability is weak, the precision is low, the structure is also relatively complex, and the flexibility and scalability are poor. Not widely; therefore, an indoor positioning system with high precision and strong anti-interference ability is needed to solve the current problems
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[0036] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further elaborated below in conjunction with illustrations and specific embodiments.
[0037] refer to figure 1 , the UWB-based ultra-wideband indoor positioning system includes a radio frequency part, a baseband part and a Tag label, and the radio frequency part includes a low-noise amplifier LNA, an automatic power generation controller ACG, an analog-to-digital converter A / D, and a digital-to-analog conversion device D / A, amplifier Q and antenna B;
[0038] The baseband part includes a RAKE receiver, an equalizer J and a digital signal processor S;
[0039] The antenna B receives the pulse signal sent by the Tag label, and after filtering, it is processed by the low noise amplifier LNA and sent to the automatic power generation controller ACG, and the automatic power generation controller ACG transmits the pro...
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An ultra-wide band indoor positioning system based on UWB comprises a radio frequency portion, a base band portion and a Tag label. The radio frequency portion comprises a low noise amplifier LNA, anautomatic power generation controller ACG, an analog-to-digital converter A / D, a digital-to-analog converter D / A, an amplifier Q, and an antenna B. The structure of the system designed through using the method is simple, and simultaneously the flexibility and the expandability of a communication system are possessed. The UWB system of a full digital structure has low power consumption and low cost, is easy to maintain and upgrade, is easy to be integrated with a single sheet COMS chip, and is convenient to be applied to portable equipment. The system has good confidentiality, high precision, good anti-interference performance and low power, saves power and can position the positions of the Tag label in a 0-3 dimensional space.
Description
technical field [0001] The invention relates to the technical field of ultra-wideband indoor positioning systems, in particular to a UWB-based ultra-wideband indoor positioning system and method. Background technique [0002] UWB (UltraWideband) is a carrier-free communication technology that uses nanosecond to picosecond-level non-sine wave narrow pulses to transmit data. By transmitting extremely low-power signals on a wide spectrum, UWB can be within a range of about 10 meters. The data transmission rate of hundreds of Mbit / s to several Gbit / s can be realized within a few minutes, and the influence of electromagnetic wave radiation on the human body will be small, and the application area will be wide, which is different from traditional wireless systems with relatively narrow bandwidth such as Bluetooth and WI-FI. , UWB can send a series of very narrow low-power pulses on a wide frequency, while the commonly used Bluetooth and WI-FI have relatively large limitations, and...
Claims
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IPC IPC(8): H04W4/02H04W64/00
CPCH04W4/023H04W4/025H04W64/00Y02D30/70
Inventor 何立刚
Owner 浙江优勝科技有限公司