Unlock instant, AI-driven research and patent intelligence for your innovation.

An indoor positioning method based on bluetooth signal

An indoor positioning and Bluetooth signal technology, applied in location information-based services, specific environment-based services, wireless communication, etc., can solve the problems of deviation from application scenarios, inability to completely correct positioning deviation, enhancement, etc.

Active Publication Date: 2022-07-15
杭州雅观科技有限公司
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the Bluetooth signal is transmitted to the receiving end through multiple paths, and the signal strength will be enhanced or attenuated due to refraction, reflection, etc. The correction only plays an auxiliary role, and cannot completely correct the positioning deviation caused by the simple use of triangulation positioning algorithm

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • An indoor positioning method based on bluetooth signal
  • An indoor positioning method based on bluetooth signal
  • An indoor positioning method based on bluetooth signal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0050] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0051] The fixed node is equipped with a wireless sensor device with a Bluetooth module to detect the environment and communicate with the mobile node.

[0052] A mobile node is a user equipment equipped with a Bluetooth module.

[0053] RSSI, (Received Signal Strength Indication, received signal strength indication), is an indicator on the base station side, mainly used for distance measurement between transmitter and receiver. The theory of ranging is: according to the transmission of radio waves or sound waves in the medium, the signal power is The principle of attenuation with propagation distance. This scheme adopts RSSI in the IEEE802.11 standard. The stronger the signal, the larger the value, with 0 as the maximum value.

[0054] An indoor positioning method based on a bluetooth signal, comprising the following steps:

[0055] Step S1, establishing ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

An indoor positioning method based on bluetooth signals belongs to the technical field of wireless positioning and includes the following steps: step S1, establishing a signal propagation model of a fixed node in a designated monitoring environment; step S2, when a mobile node obtains signal strength information from the fixed node , according to the historical information to determine whether to use the parameters of the signal propagation model of the fixed node of the current strongest signal; Step S3 , calculate the target position of the mobile node through the triangulation method. This scheme establishes a signal propagation model suitable for different monitoring environments instead of using general constants. At the same time, the scheme adopts multiple corrections, so that the signal attenuation factor is more in line with the actual value, and the influence of the multi-path effect on the signal strength is reduced.

Description

technical field [0001] The invention belongs to the technical field of wireless positioning, and in particular relates to an indoor positioning method based on a bluetooth signal. Background technique [0002] Positioning is divided into outdoor positioning and indoor positioning. Outdoor positioning usually adopts a positioning method based on GPS or Beidou. When indoors, the GPS or Beidou signal is weakened, and the positioning effect is poor. Therefore, indoor positioning usually adopts wifi indoor positioning, uwb indoor positioning, and bluetooth indoor positioning. [0003] WiFi indoor positioning requires the use of a router, and the router consumes a lot of energy and must be connected to the AC power supply, and its wiring requires a large amount of construction. uwb indoor positioning requires a special terminal for receiving signals, and ordinary mobile phones cannot receive such signals. The advantage of Bluetooth indoor positioning is that the deployment is ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/02H04W64/00H04W4/38
CPCH04W4/025H04W64/003H04W4/38
Inventor 王贺高健伦顾志诚
Owner 杭州雅观科技有限公司