An intelligent and fast search digital positioning method for rotating magnetic beacon
A digital positioning and beacon technology, which is applied in ground navigation and other directions, can solve the problems of limited service range, complex methods, and low precision, and achieve high-precision positioning and directional services, efficient and reasonable algorithms, and high positioning accuracy.
Active Publication Date: 2021-07-30
HARBIN INST OF TECH
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Problems solved by technology
The disadvantage of WiFi positioning technology is that it consumes a lot of energy and is limited by the service range. There is no data such as direction and speed, and it cannot be navigated.
The disadvantage of Zigbee positioning technology is that it can only be used for private network, the data rate is low, and it is not suitable for applications with high transmission rate.
The disadvantage of Bluetooth positioning technology is that in a complex space environment, the stability is slightly poor, and it is greatly affected by noise interference.
[0004] And the existing invention patent a kind of positioning and orientation method based on magnetic beacon (application publication number CN105928511A) its technical method method is comparatively complicated, and precision is not high
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[0036] The present invention will be described in further detail below in conjunction with the accompanying drawings: the present embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation is provided, but the protection scope of the present invention is not limited to the following embodiments.
[0037] like figure 1 and figure 2 As shown, the rotating magnetic beacon intelligent fast search digital positioning method involved in this embodiment generally uses the firefly algorithm to solve the maximum value of the objective function, and then obtain the position of the target. In practical applications, two coils fed with sinusoidal currents of different frequencies generate a magnetic field, and the magnetic field strength information obtained by measuring the magnetic field strength information obtained through the fluxgate placed on the target object is then compared with the standard magnetic field strength t...
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The invention provides a rotating magnetic beacon intelligent fast search digital positioning method, which belongs to the technical field of positioning and orientation methods. The invention solves the maximum value of the objective function through the firefly algorithm, and then obtains the location of the objective. In practical applications, two coils fed with sinusoidal currents of different frequencies generate a magnetic field, and the magnetic field strength information obtained by measuring the magnetic field strength information obtained through the fluxgate placed on the target object is then compared with the standard magnetic field strength to obtain the true location of the object. Location. The present invention can still ensure stable and high-precision positioning and orientation services in some special environments, especially in underground, underwater, indoor, urban or mountain canyon areas, and has the advantages of simple device, efficient and reasonable algorithm, high positioning accuracy, It is characterized by good penetration and is not directly affected by adverse weather conditions and diurnal changes.
Description
technical field [0001] The invention relates to an intelligent fast search digital positioning method of a rotating magnetic beacon, belonging to the technical field of positioning and orientation methods. Background technique [0002] In the prior art in this field, spatial positioning methods generally include GPS positioning, WiFi positioning, ZigBee positioning, Bluetooth positioning, and the like. [0003] The disadvantage of GPS positioning technology is that it requires a built-in satellite signal receiving module in the terminal, and the positioning accuracy is greatly affected by the environment in which the terminal is located. If the terminal is in a large building or indoor environment, the received satellite signal is too weak, and the positioning accuracy will be reduced. The disadvantage of WiFi positioning technology is that it consumes a lot of energy, and is limited by the service range. There is no data such as direction and speed, and it cannot be naviga...
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IPC IPC(8): G01C21/04
CPCG01C21/04
Inventor 夏红伟刘超越马广程王常虹王冠李清华
Owner HARBIN INST OF TECH