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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 mapping and navigation, etc., can solve the problem of narrowing switching range between UWB and GPS positioning, large positioning deviation in indoor and outdoor transition areas, and on-site Implement problems such as low efficiency to achieve the effect of increasing the scope of application, improving efficiency, and reducing time spent

Active Publication Date: 2021-09-07
合肥四相至新科技有限公司 +1
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  • Summary
  • 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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Experimental program
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Effect test

Embodiment 1

[0061] In related technologies, UWB and GPS combined positioning systems mostly use on-site markers or buildings whose coordinates have been measured in advance as reference objects, judge the movement relationship between tags and reference objects according to the coordinates of tags, and obtain the tags and reference objects. The movement trend between UWB and GPS, so as to switch between UWB and GPS. This switching method needs to select and measure the reference object in advance, which reduces the efficiency of on-site implementation; this switching method has certain limitations on the movement behavior of the tag. In order to judge the movement trend, the tag needs to move perpendicular to the plane of the reference object, and it needs to clearly distinguish between indoor and outdoor areas. The movement track of the tag is limited, and when there are UWB positioning outdoors, it will currently judge GPS positioning will cause UWB positioning to fail. When transitionin...

Embodiment 2

[0085] On the basis of Embodiment 1, a system applied to the UWB and GPS integrated positioning method 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 send information about whether the UWB can be positioned successfully 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 module, a main control module, a UWB positioning module, a short-range communication module, a GPS positioning module, an accelerometer module and a long-range 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 responsib...

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Abstract

The invention discloses a UWB and GPS integrated positioning system and a positioning method. The system includes a tag, a UWB base station and a server, and the tag includes a UWB positioning module, a short-range communication module, a tag, a GPS positioning module and a long-distance communication module; The positioning method is to search the UWB base station for the tag, and select and select UWB positioning, GPS positioning, UWB+GPS positioning method or GPS+UWB positioning method according to whether the UWB base station is found and the received information sent by the server Switching; the positioning method does not rely on markers, which improves the efficiency of on-site implementation, increases the scope of application of the positioning method, enhances the flexibility of UWB base station deployment, and solves the problem of large positioning deviation or inability to locate in the transition area, and through remote communication. The transmission success rate of the module's GPS positioning data return is low, resulting in the problem of positioning freeze or no positioning data.

Description

technical field [0001] The invention relates to the technical fields of UWB positioning and GPS positioning, in particular to a UWB and GPS integrated positioning method and system. Background technique [0002] There are two main positioning technologies commonly used at present, one is the indoor high-precision positioning technology represented by UWB, and the other is the outdoor positioning technology represented by GPS. These two positioning technologies are widely used in different application scenarios For example, UWB is widely used in short- and medium-distance spaces such as indoors because of its high positioning accuracy, fast transmission rate, wide coverage, good real-time performance, strong penetrating power, and low transmission power. When indoors, more UWB base stations need to be arranged, and the cost is high, so it has certain limitations in large-scale applications; GPS positioning technology has weak indoor signals and positioning accuracy is only a ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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