CN111385741A - UWB navigation vehicle finding method - Google Patents
UWB navigation vehicle finding method Download PDFInfo
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- CN111385741A CN111385741A CN202010195042.0A CN202010195042A CN111385741A CN 111385741 A CN111385741 A CN 111385741A CN 202010195042 A CN202010195042 A CN 202010195042A CN 111385741 A CN111385741 A CN 111385741A
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- uwb
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- car
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/024—Guidance services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/021—Services related to particular areas, e.g. point of interest [POI] services, venue services or geofences
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/33—Services specially adapted for particular environments, situations or purposes for indoor environments, e.g. buildings
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Navigation (AREA)
Abstract
A method for finding car by UWB navigation mainly includes the following steps that UWB equipment is installed on a car, a user uses a mobile phone with built-in UWB technology to be paired with the UWB equipment installed on the car in advance, the mobile phone UWB of the user automatically records current positioning A and communicates with the UWB equipment to test that the distance between the current positioning A of the user and a position C of the car is B meters, the user moves to a position B after moving to any direction for C meters, at the moment, the distance between the position B and the position C of the car is a meters through the communication between the user and the UWB equipment on the car, and the mobile phone of the user is represented as a formula cos ∠ CAB (C is represented as C2+b2‑a2) The position of the vehicle is automatically calculated by the aid of the/2 bc; compared with the prior art, the invention has the beneficial effects that: through placing UWB equipment on the car, the user utilizes UWB in the cell-phone to realize seeking the car fast, and the degree of difficulty is little, and is with low costs, and the precision is high, and the application is extensive.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of indoor positioning, in particular to a UWB navigation vehicle finding method.
[ background of the invention ]
It is very difficult to look for the car in underground parking garage, and prior art is all through UWB basic station/bluetooth location vehicle, and the car is looked for in rethread cell-phone navigation, nevertheless because current garage does not basically transform through the basic station, can carry out accurate positioning more than 3 basic stations simultaneously, and the scale of transforming is big, and is with high costs, realizes having very big degree of difficulty.
Accordingly, there is a need to provide a method for UWB navigation to find a car to overcome the deficiencies of the prior art.
[ summary of the invention ]
The invention aims to provide a UWB navigation vehicle finding method, which aims to realize quick vehicle finding, reduce difficulty and cost and improve accuracy.
In order to achieve the purpose, the invention provides a UWB navigation vehicle finding method, which mainly comprises the following steps:
s1, installing UWB equipment on the vehicle, and pairing the user with the UWB equipment installed on the vehicle in advance by using a mobile phone with built-in UWB technology;
s2, automatically recording the current location A by the mobile phone UWB of the user, and communicating with the UWB equipment to test that the distance between the current location A of the user and the position C of the vehicle is b meters;
s3, the user moves for C meters in any direction and then arrives at a position B, and at the moment, the user communicates with the UWB equipment on the vehicle through a mobile phone UWB to test that the distance between the position B and the position C of the vehicle is a meters;
and S4, the mobile phone of the user automatically calculates the position of the vehicle according to the formula cos ∠ CAB ═ c2+ b2-a2)/2 bc.
In a preferred embodiment, in step S3, the moving distance of the user moving in any direction to reach position B is obtained by an inertial navigation or pedometer function in the handset.
In a preferred embodiment, in step S4, the mobile phone of the user continuously updates and calculates the location of the vehicle according to the movement of the user. And real-time navigation can be realized through continuous adjustment, and the position of the vehicle can be accurately found.
Compared with the prior art, the UWB navigation vehicle finding method provided by the invention has the beneficial effects that: through placing UWB equipment on the car, the user utilizes UWB in the cell-phone to realize seeking the car fast, and the degree of difficulty is little, and is with low costs, and the precision is high, and the application is extensive.
[ description of the drawings ]
Fig. 1 is a schematic diagram of a UWB navigation vehicle finding method provided by the present invention.
[ detailed description ] embodiments
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
The invention provides a UWB navigation vehicle finding method.
In an embodiment of the present invention, referring to fig. 1, the UWB navigation vehicle finding method mainly includes the following steps:
s1, installing UWB equipment on the vehicle, and pairing the user with the UWB equipment installed on the vehicle in advance by using a mobile phone with built-in UWB technology;
s2, automatically recording the current location A by the mobile phone UWB of the user, and communicating with the UWB equipment to test that the distance between the current location A of the user and the position C of the vehicle is b meters;
s3, the user moves for C meters in any direction and then arrives at a position B, and at the moment, the user communicates with the UWB equipment on the vehicle through a mobile phone UWB to test that the distance between the position B and the position C of the vehicle is a meters;
and S4, the mobile phone of the user automatically calculates the position of the vehicle according to the formula cos ∠ CAB ═ c2+ b2-a2)/2 bc.
It can be understood that the UWB navigation vehicle finding method only needs to place one UWB device on the vehicle, and the UWB device in the mobile phone is utilized to realize rapid vehicle finding, so that the difficulty is low, the cost is low, the accuracy is high, and the application is wide.
Further, in step S3, the moving distance of the user moving in any direction to reach the position B is obtained by the inertial navigation or pedometer function in the cellular phone.
Further, in step S4, the mobile phone of the user continuously updates and calculates the location of the vehicle according to the movement of the user. And real-time navigation can be realized through continuous adjustment, and the position of the vehicle can be accurately found.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (3)
1. A UWB navigation vehicle finding method is characterized in that: mainly comprises the following steps
S1, installing UWB equipment on the vehicle, and pairing the user with the UWB equipment installed on the vehicle in advance by using a mobile phone with built-in UWB technology;
s2, automatically recording the current location A by the mobile phone UWB of the user, and communicating with the UWB equipment to test that the distance between the current location A of the user and the position C of the vehicle is b meters;
s3, the user moves for C meters in any direction and then arrives at a position B, and at the moment, the user communicates with the UWB equipment on the vehicle through a mobile phone UWB to test that the distance between the position B and the position C of the vehicle is a meters;
s4, the mobile phone of the user is (c) according to the formula cos ∠ CAB2+b2-a2) The position of the vehicle is automatically calculated by the/2 bc.
2. The UWB navigation vehicle finding method of claim 1, wherein: in step S3, the moving distance of the user when moving in any direction to reach the position B is obtained by the inertial navigation or pedometer function in the cellular phone.
3. The UWB navigation vehicle finding method of claim 1, wherein: in step S4, the mobile phone of the user continuously updates and calculates the position of the vehicle according to the movement of the user. And real-time navigation can be realized through continuous adjustment, and the position of the vehicle can be accurately found.
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| CN202010195042.0A CN111385741A (en) | 2020-03-19 | 2020-03-19 | UWB navigation vehicle finding method |
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| CN202010195042.0A CN111385741A (en) | 2020-03-19 | 2020-03-19 | UWB navigation vehicle finding method |
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| CN101493517A (en) * | 2009-02-23 | 2009-07-29 | 东南大学 | Method for positioning node independent of geographic position information in sensor network |
| CN104485013A (en) * | 2014-12-31 | 2015-04-01 | 武汉智慧城市研究院股份有限公司 | Smart identification method for vehicle parking position |
| WO2018031971A1 (en) * | 2016-08-12 | 2018-02-15 | 5D Robotics, Inc. | Ultra-wide band radar and positional node integration |
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Application publication date: 20200707 |