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UWB and GPS integrated positioning method and system

A GPS positioning and positioning method technology, applied in satellite radio beacon positioning system, radio wave measurement system, surveying and navigation, etc., can solve the problems of inability to locate, large positioning deviation in indoor and outdoor transition areas, and low efficiency of on-site implementation. To achieve the effect of increasing the scope of application, improving efficiency and increasing flexibility

Active Publication Date: 2020-05-05
合肥四相至新科技有限公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is that when switching between UWB and GPS positioning technology, it is necessary to find and use on-site markers, which leads to low efficiency of on-site implementation, and the specific requirements for label movement behavior lead to narrowing of the switching range between UWB and GPS positioning, and the indoor and outdoor areas. There is a clear distinction and the positioning deviation of the indoor and outdoor transition areas is large or cannot be located

Method used

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  • UWB and GPS integrated positioning method and system
  • UWB and GPS integrated positioning method and system
  • UWB and GPS integrated positioning method and system

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Embodiment 1

[0061] In related technologies, UWB and GPS combined positioning systems mostly use on-site landmarks or buildings whose coordinates have been determined in advance as reference objects, and determine the movement relationship between the label and the reference object according to the coordinates of the label, and obtain the label and the reference object. The movement trend between UWB and GPS is thus switched. This switching method requires the selection and measurement of reference objects in advance, which reduces the efficiency of on-site implementation; this switching method has certain limitations on the motion behavior requirements of tags It requires the tag to move vertically along the surface of the reference object to determine the movement trend, and it is necessary to clearly distinguish between indoor and outdoor areas. The movement trajectory of the tag is restricted, and when there is UWB positioning outdoors, it is currently judged It is GPS positioning, which...

Embodiment 2

[0085] On the basis of Embodiment 1, a system applied to the integrated positioning method of UWB and GPS includes a tag, a UWB base station and a server. The UWB base station is used to establish communication with the tag, receive positioning information sent by the tag, and transmit the positioning information to the server.

[0086] The server is configured to deliver information about whether UWB can be successfully positioned to the tag and receive positioning information sent by the tag.

[0087] Such as Figure 5 As shown, the tag includes a charging module, a power supply module, a main control module, a UWB positioning module, a short-range communication module, a GPS positioning module, an accelerometer module, and a remote communication module.

[0088] The charging module is responsible for charging the built-in lithium battery of the tag; the power module is responsible for supplying power to other modules inside the tag.

[0089] The main control module is responsible ...

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Abstract

The invention discloses a UWB and GPS integrated positioning system and method. The system comprises a label, a UWB base station and a server, and the label comprises a UWB positioning module, a short-range communication module, a label, a GPS positioning module and a remote communication module; the positioning method comprises the following steps: searching a UWB base station by the label, and selecting and switching UWB positioning, GPS positioning, UWB+GPS positioning method or GPS+UWB positioning method according to determination of whether the UWB base station is searched and the received information sent by the server; according to the positioning method, no marker is used, the method improves the field implementation efficiency, enlarges the application range of a positioning method, improves the flexibility of UWB base station deployment, and solves problems that a transition region is large in positioning deviation or cannot be positioned, the transmission success rate is lowwhen the GPS positioning data is transmitted back through a remote communication module, and the positioning is not smooth or there is no positioning data.

Description

Technical field [0001] The invention relates to the technical fields of UWB positioning and GPS positioning, and in particular to a UWB and GPS integrated positioning method and system. Background technique [0002] Currently there are two main positioning technologies commonly used, one is indoor high-precision positioning technology represented by UWB, and the other is outdoor positioning technology represented by GPS. These two positioning technologies are widely used in different application scenarios. For example, because of its high positioning accuracy, fast transmission rate, wide coverage, good real-time performance, strong penetrating power, and low transmission power, UWB is widely used in indoor and other short- and medium-distance spaces, and it is also used in a large outdoor area. It is necessary to deploy more UWB base stations during internal operation, and the cost is high, so it has certain limitations in large-scale applications; GPS positioning technology has...

Claims

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Application Information

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IPC IPC(8): G01S19/46G01C21/20
CPCG01C21/206G01S19/46
Inventor 贾颖焘张会军罗超
Owner 合肥四相至新科技有限公司
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