CN115277901B - Folding device - Google Patents
Folding device Download PDFInfo
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- CN115277901B CN115277901B CN202210905581.8A CN202210905581A CN115277901B CN 115277901 B CN115277901 B CN 115277901B CN 202210905581 A CN202210905581 A CN 202210905581A CN 115277901 B CN115277901 B CN 115277901B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
- H04M1/0208—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
- H04M1/0214—Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/08—Means for collapsing antennas or parts thereof
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
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- Engineering & Computer Science (AREA)
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- Computer Networks & Wireless Communication (AREA)
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Abstract
本申请公开了一种折叠装置，包括：折叠结构，折叠结构具有第一区域、第二区域，第一天线单元设置于第一区域；第二天线单元设置于第二区域；第一天线单元与第二天线单元中至少一个天线单元的数量为多个，在折叠结构处于折叠状态的情况下，第一区域与第二区域层叠设置，在折叠结构处于展开状态的情况下，第一天线单元与第二天线单元构成第一UWB天线，通过UWB天线可以实现测角测距功能，可以提高空间利用率，减少天线之间的相互影响。
The present application discloses a folding device, comprising: a folding structure, the folding structure having a first area and a second area, a first antenna unit being arranged in the first area; a second antenna unit being arranged in the second area; at least one of the first antenna unit and the second antenna unit being multiple in number, and when the folding structure is in a folded state, the first area and the second area are stacked, and when the folding structure is in an unfolded state, the first antenna unit and the second antenna unit constitute a first UWB antenna, and the UWB antenna can realize angle measurement and ranging functions, thereby improving space utilization and reducing mutual influence between antennas.
Description
Technical Field
The application belongs to the technical field of electronic equipment, and particularly relates to a folding device.
Background
With the development of 5G communication technology, the coming age of everything interconnection, the user has more and more requirements on the function of electronic equipment, has put forward higher requirements to the convenience and the intellectualization of electronic equipment. Indoor positioning, object searching and the like are introduced into electronic equipment, and Ultra Wide Band (UWB) communication technology is used for realizing the function. The implementation of UWB antennas presents challenges for antenna performance, spatial layout in electronic devices.
With the development of flexible screen technology, folding screen electronic devices are gradually maturing. The folded structure requires a hinge structure, and both the changing antenna environment and the more crowded space place requirements on the antenna. Due to the positioning principle, the UWB antenna at least needs three antennas to realize the positioning of a three-dimensional plane, and the antennas occupy large space of the electronic equipment and can be mutually influenced by other antennas to influence the respective performances.
Disclosure of Invention
The embodiment of the application aims to provide a folding device which is used for solving the problem that the UWB antenna occupies a large space and can be mutually influenced by other antennas to influence respective performances.
The embodiment of the application provides a folding device, which comprises:
A folded structure having a first region, a second region;
A first antenna unit disposed in the first region;
The second antenna unit is arranged in the second area, and the number of at least one antenna unit in the first antenna unit and the second antenna unit is a plurality of antenna units;
the first region and the second region are stacked in a state that the folding structure is in a folded state;
And under the condition that the folding structure is in an unfolding state, the first antenna unit and the second antenna unit form a first UWB antenna.
The number of the first antenna units and the number of the second antenna units are multiple.
Wherein the number of the first antenna units is one, the number of the second antenna units is two, or
The number of the first antenna units is two, and the number of the second antenna units is one.
Wherein, folding device still includes:
And the third antenna unit is arranged in the first area, and at least one of the first antenna unit and the third antenna unit form a second UWB antenna.
The number of the first antenna units and the number of the third antenna units are multiple, and the multiple third antenna units are arranged at intervals.
Wherein the number of the first antenna units is two, and the number of the third antenna units is one.
Wherein, folding device still includes:
The fourth antenna unit is arranged in the second area, the number of the second antenna units is two, and the two second antenna units and the fourth antenna unit form a third UWB antenna.
Wherein, folding device still includes:
A control module for controlling the first antenna unit and the second antenna unit to receive and transmit signals when the folding structure is in an unfolded state, and/or
For controlling the first antenna unit and the third antenna unit to transmit and receive signals when the folding structure is in a folded state, and/or
And the antenna unit is used for controlling the second antenna unit and the fourth antenna unit to send and receive signals under the condition that the folding structure is in a folding state.
Wherein, folding device still includes:
And the fourth antenna unit is arranged in the second area, and at least one second antenna unit and the fourth antenna unit form a third UWB antenna.
The number of the second antenna units and the number of the fourth antenna units are multiple, and the multiple fourth antenna units are arranged at intervals.
Wherein, folding device still includes:
and the flexible display screen is connected with the folding structure.
In the folding device according to the embodiment of the application, the folding structure has the first area and the second area, the first antenna unit is disposed in the first area, and the second antenna unit is disposed in the second area. The number of at least one antenna unit in the first antenna unit and the second antenna unit is a plurality of. The first region and the second region are stacked when the folded structure is in a folded state, and the first antenna unit and the second antenna unit constitute a first UWB antenna when the folded structure is in an unfolded state. Under the condition that the folding structure is in an unfolding state, the first UWB antenna formed by the first antenna unit and the second antenna unit can realize the positioning of a three-dimensional plane, and the UWB antenna formed by the first antenna unit and the second antenna unit can realize the angle measurement and distance measurement function. The first antenna unit and the second antenna unit are arranged in the folding device, the space of the folding device can be reused, the overall space utilization rate of the electronic equipment is improved, the antenna units are far away from other antennas, the mutual influence between the antennas can be reduced, the isolation between the antennas and the other antennas is improved, and the risk of electromagnetic interference is reduced.
Drawings
FIG. 1a is a schematic view of a folding device according to an embodiment of the present application in an unfolded state;
FIG. 1b is a schematic view of a folding device according to an embodiment of the present application;
FIG. 2a is a schematic view of a folding device according to another embodiment of the present application in an unfolded state;
FIG. 2b is a schematic view of a folding device according to another embodiment of the present application in a folded state;
Fig. 2c is a schematic diagram illustrating the arrangement of the first antenna unit and the third antenna unit according to another embodiment of the present application;
fig. 2d is a schematic diagram illustrating the arrangement of the second antenna unit and the fourth antenna unit according to another embodiment of the present application;
FIG. 3a is a schematic view of a folding device according to another embodiment of the present application in an unfolded state;
FIG. 3b is a schematic view of a folding device according to another embodiment of the present application in a folded state;
Fig. 3c is a schematic diagram illustrating an arrangement of a first antenna unit and a third antenna unit according to another embodiment of the present application;
fig. 3d is a schematic diagram illustrating the arrangement of a second antenna unit and a fourth antenna unit according to another embodiment of the present application;
FIG. 3e is a schematic diagram of the AOA principle of the UWB antenna;
FIG. 4 is a schematic view of a folding device according to another embodiment of the present application in an unfolded state;
FIG. 5 is a schematic view of a folding device according to another embodiment of the present application in an unfolded state;
Fig. 6 is a schematic view of a folding device according to another embodiment of the present application in an unfolded state.
Reference numerals
A folding structure 10;
a first region 11, a second region 12, a folded region 13;
a first antenna unit 21, a second antenna unit 22;
A third antenna element 23, a fourth antenna element 24;
a display screen 30.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the application may be practiced otherwise than as specifically illustrated or described herein. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.
The folding device provided by the embodiment of the application is described in detail below by means of a specific embodiment and an application scenario thereof, with reference to fig. 1a to 6.
As shown in fig. 1a to 3d and fig. 4 to 6, the folding device may include a folding structure 10, a first antenna unit 21 and a second antenna unit 22, the folding structure 10 may have a first area 11 and a second area 12, the first antenna unit 21 is disposed in the first area 11, the second antenna unit 22 is disposed in the second area 12, and at least one of the first antenna unit 21 and the second antenna unit 22 has a plurality of antenna units. When the folding structure 10 is in a folded state, the first area 11 and the second area 12 are stacked, at least one first antenna unit 21 and one second antenna unit 22 can be arranged in a position corresponding to the stacking direction, and when the folding structure 10 is in an unfolded state, the first antenna unit 21 and the second antenna unit 22 form a first UWB antenna, and the positioning and angle measurement functions of a three-dimensional plane can be realized through the first UWB antenna. The first antenna unit and the second antenna unit are arranged in the folding device, so that the space of the folding device can be reused, the whole space utilization rate of the electronic equipment is improved, and the mutual influence between the antennas is reduced.
For example, the folding structure 10 may have a folding region 13, and the first region 11 and the second region 12 may be located at both sides of the folding region 13 in the unfolded state of the folding structure 10, and the first region 11 and the second region 12 may be folded along the folding region 13. The first region 11, the second region 12 and the folded region 13 may be rectangular, the first region 11, the second region 12 and the folded region 13 may be parallel to each other, and when the folded structure 10 is in the unfolded state, the distances between the first region 11 and the second region 12 and the folded region 13 may be equal, and the first region 11 and the second region 12 may be symmetrical with respect to the folded region 13. The folding structure 10 can be folded or unfolded along the folding region 13, the folding region 13 can include a pivot axis or a linear strip, etc., and the first region 11 and the second region 12 can be folded along the pivot axis or the linear strip. The folding structure 10 may be a foldable plate, such as a flexible plate, and the folding region 13 may be a flexible region such that the folding region 13 may be folded so that the first region 11 and the second region 12 may be folded or unfolded. The folding structure 10 may include a hinge structure on which at least portions of the first and second regions 11 and 12 may be located, and the folding structure 10 may include a hinge structure and mating members connected to both ends of the hinge structure, which may be a case or a frame, on which at least portions of the first and second regions 11 and 12 may be located, and the first and second regions 11 and 12 may be folded or unfolded along a pivot axis of the hinge structure. The UWB antenna can accept a lower profile due to higher frequency, and meanwhile, in order to ensure stable directional patterns, a patch antenna (patch antenna) can be selected as the UWB antenna, so that the profile is further reduced. The hinge structure can be a metal structure, and the hinge is large-area metal, so that a stable ground can be provided for the UWB antenna, and the stability of a UWB antenna pattern is ensured.
The first antenna unit 21 may be disposed in the first area 11, the second antenna unit 22 may be disposed in the second area 12, the number of at least one antenna unit of the first antenna unit 21 and the second antenna unit 22 is plural, the plural antenna units may be disposed at intervals along the length direction of the folded area 13, and the length direction of the folded area 13 may be the left-right direction in fig. 1 a. For example, the number of the first antenna units 21 and the number of the second antenna units 22 are all plural, the plurality of first antenna units 21 can be arranged at intervals along the length direction of the folding area 13, the plurality of first antenna units 21 can be arranged at even intervals along the length direction of the folding area 13, the plurality of second antenna units 22 can be arranged at even intervals along the length direction of the folding area 13, and the interval between two adjacent first antenna units 21 and the interval between two adjacent second antenna units 22 can be equal. For example, the number of the first antenna units 21 may be one, the number of the second antenna units 22 may be plural, the plurality of second antenna units 22 may be disposed at intervals along the length direction of the folding region 13, and the plurality of second antenna units 22 may be disposed at uniform intervals along the length direction of the folding region 13.
When the folding structure 10 is in the folded state, the first region 11 and the second region 12 are stacked, the at least one first antenna unit 21 and the second antenna unit 22 are disposed opposite to each other, and the oppositely disposed first antenna unit 21 and second antenna unit 22 may be disposed at a stacked interval, that is, when the folding structure 10 is in the folded state, the at least one first antenna unit 21 and the second antenna unit 22 are disposed in position corresponding to each other in the up-down direction, as shown in fig. 2 b. For example, the number of the first antenna units 21 may be one, the number of the second antenna units 22 may be two, and the two second antenna units 22 may be disposed at uniform intervals along the length direction of the folding area 13, and in the case where the folding structure 10 is in the folded state, the first antenna unit 21 and one second antenna unit 22 may be disposed in correspondence with each other in the up-down direction. When the folded structure 10 is in the unfolded state, the two first antenna units 21 and one second antenna unit 22 may be integrally distributed in an L shape, the first antenna unit 21 and the second antenna unit 22 may form a first UWB antenna, and positioning of a three-dimensional plane may be achieved through the first UWB antenna formed by the first antenna unit 21 and the second antenna unit 22.
Under the condition that the folding structure 10 is in the unfolded state, the first antenna unit 21 and the second antenna unit 22 are located on two sides of the folding area 13, positioning of a three-dimensional plane can be achieved through the first antenna unit 21 and the second antenna unit 22, a first UWB antenna can be formed by the first antenna unit 21 and the second antenna unit 22, and an angle measurement and distance measurement function can be achieved through the first UWB antenna formed by the first antenna unit 21 and the second antenna unit 22. The first antenna unit 21 and the second antenna unit 22 are arranged in the folding device, so that the space of the folding device can be reused, the overall space utilization rate of the electronic equipment is improved, the antenna units are far away from other antennas, the mutual influence between the antennas can be reduced, the isolation between the antennas and the other antennas is improved, and the risk of electromagnetic interference is reduced.
In some embodiments, as shown in fig. 4 to 5, the number of the first antenna units 21 and the second antenna units 22 may be plural, and each first antenna unit 21 and the corresponding second antenna unit 22 may be disposed in correspondence with each other in the stacking direction when the folding structure 10 is in the folded state. For example, the number of the first antenna units 21 and the second antenna units 22 is two, the two first antenna units 21 may be uniformly spaced along the length direction of the folding area 13, the two second antenna units 22 may be uniformly spaced along the length direction of the folding area 13, and the space between two adjacent first antenna units 21 may be equal to the space between two adjacent second antenna units 22. In the case that the folded structure 10 is in the unfolded state, the distance between the adjacent first antenna units 21 and the second antenna units 22 may be equal to the distance between the adjacent two first antenna units 21, so as to achieve an angle measurement and distance measurement function, and achieve a positioning function.
In some embodiments, as shown in fig. 1a, the number of the first antenna units 21 may be one, and the number of the second antenna units 22 may be two, as shown in fig. 1b, where the first antenna unit 21 is disposed corresponding to one second antenna unit 22 in position in the up-down direction in the case where the folding structure 10 is in the folded state. In the case where the folded structure 10 is in the unfolded state, the distance between the adjacent first antenna element 21 and second antenna element 22 may be equal to the distance between the two second antenna elements 22. Under the condition that the folding structure 10 is in an unfolding state, the two second antenna units 22 and one first antenna unit 21 can be integrally distributed in an L shape, the first antenna unit 21 and the second antenna unit 22 can form a first UWB antenna, the first antenna unit 21 and the second antenna unit 22 can be used for realizing the positioning of a three-dimensional plane, and the angle measurement and distance measurement functions can be realized.
Alternatively, as shown in fig. 6, the number of the first antenna elements 21 is two, the number of the second antenna elements 22 is one, and in the case where the folding structure 10 is in the folded state, the second antenna elements 22 and one first antenna element 21 may be disposed in position corresponding to each other in the stacking direction, and the oppositely disposed second antenna elements 22 and one first antenna element 21 may be disposed at a stacking interval. In the case where the folded structure 10 is in the unfolded state, the distance between the adjacent first antenna element 21 and second antenna element 22 may be equal to the distance between the two first antenna elements 21. Under the condition that the folding structure 10 is in an unfolding state, the two first antenna units 21 and one second antenna unit 22 can be integrally distributed in an L shape, the first antenna units 21 and the second antenna units 22 can form a first UWB antenna, positioning of a three-dimensional plane can be achieved through the first antenna units 21 and the second antenna units 22, and an angle measurement and distance measurement function can be achieved. The folding device can be a hinge, and can be applied to a mobile phone, when the mobile phone is unfolded, the first UWB antenna is distributed right above the hinge and is distributed in an L shape, and when the mobile phone is folded, the L-shaped distribution of the first UWB antenna is destroyed, and at the moment, the first UWB antenna can be in a non-working state. When the first UWB antenna is arranged right above the hinge, the hinge space can be reused, the space utilization rate of the folding equipment is improved, and after the first UWB antenna is arranged right above the hinge, the problem that NFC in a mobile phone collides with the first UWB antenna space can be avoided.
In the embodiment of the present application, as shown in fig. 2a to 2c and 5, the folding device may further include a third antenna unit 23, where the third antenna unit 23 may be disposed in the first area 11, at least one of the first antenna unit 21 and the third antenna unit 23 may form a second UWB antenna, and by using the second UWB antenna, a three-dimensional plane positioning and angle measurement function may be implemented, so that a space of the folding device may be multiplexed, and interactions between antennas may be reduced. The third antenna unit 23 may be disposed at a side of the first region 11 away from the folding region 13, the third antenna unit 23 may be disposed at a side of the first antenna unit 21 away from the folding region 13, and at least one of the first antenna unit 21 and the corresponding third antenna unit 23 may be disposed at intervals along a direction perpendicular to a length of the folding region 13. The distance between the third antenna element 23 and the adjacent first antenna element 21 may be equal to the distance between the adjacent two first antenna elements 21, and the distance between the third antenna element 23 and the adjacent first antenna element 21 may be equal to the distance between the adjacent two second antenna elements 22. The third antenna unit 23 and the first antenna unit 21 may form a second UWB antenna, and when the folding device is in a folded or unfolded state, the second UWB antenna may be used to position a three-dimensional plane, so as to implement an angle measurement and distance measurement function.
In some embodiments, as shown in fig. 2a and fig. 5, the number of the first antenna units 21 and the third antenna units 23 may be multiple, the multiple third antenna units 23 may be disposed at intervals along the length direction of the folding region 13, each first antenna unit 21 may be disposed at intervals with the corresponding third antenna unit 23, and each first antenna unit 21 may be disposed at intervals with the corresponding third antenna unit 23 along the direction perpendicular to the length direction of the folding region 13. The third antenna element 23 may be disposed on a side of the first region 11 remote from the folded region 13, and the third antenna element 23 may be disposed on a side of the first antenna element 21 remote from the folded region 13. In the case that the folding structure 10 is in a folded state, the third antenna unit 23 and the first antenna unit 21 may form a second UWB antenna, and the positioning of the three-dimensional plane may be achieved through the second UWB antenna, so that the angle measurement and ranging function may be achieved.
Alternatively, as shown in fig. 2a, the number of the first antenna units 21 is two, the number of the third antenna units 23 is one, the third antenna units 23 and one first antenna unit 21 may be disposed at intervals, and the third antenna units 23 and one first antenna unit 21 may be disposed at intervals in a direction perpendicular to the folding region 13. The third antenna unit 23 can set up in the first area 11 and keep away from the one side of folding area 13, and the third antenna unit 23 can set up in the first antenna unit 21 and keep away from one side of folding area 13, and under the circumstances that folding structure 10 is in folding or expansion state, third antenna unit 23 and two first antenna units 21 all can wholly be L type and distribute, and third antenna unit 23 and two first antenna units 21 can constitute the second UWB antenna, can realize three-dimensional planar location through the second UWB antenna, can realize the angle measurement range finding function, and UWB antenna can adopt conventional three antenna units, realizes 3D locate function.
In the embodiment of the present application, as shown in fig. 2a, the folding device may further include a fourth antenna unit 24, where the fourth antenna unit 24 is disposed in the second area 12, the number of the second antenna units 22 is two, and the two second antenna units 22 and the fourth antenna unit 24 may form a third UWB antenna, and when the folding device is in a folded or unfolded state, the positioning of the three-dimensional plane may be implemented by the third UWB antenna, so as to implement an angle measurement function. The fourth antenna element 24 and one of the second antenna elements 22 may be disposed at intervals in a direction perpendicular to the length of the folded region 13, and in the case where the folded structure 10 is in the folded state, the other first antenna element 21 and the other second antenna element 22 may be disposed in position corresponding to each other in the stacking direction, and the other first antenna element 21 and the other second antenna element 22 may be disposed at intervals in a stacked manner. Under the condition that the folding structure 10 is in a folded or unfolded state, the fourth antenna unit 24 and the two second antenna units 22 can be distributed in an L shape integrally, the fourth antenna unit 24 and the two second antenna units 22 can form a third UWB antenna, under the condition that the folding structure 10 is in a folded or unfolded state, the positioning of a three-dimensional plane can be realized through the fourth antenna unit 24 and the second antenna units 22, and the angle measurement and distance measurement functions can be realized. The folding device can be a hinge, three antenna units are arranged on each side of the hinge, and when the folding device is in a folding state, the upper half part or the lower half part of the folding device can form an L-shaped layout respectively, so that the distance measurement and angle measurement functions can be realized.
Optionally, the folding device may further include a control module, which may be a processor on a motherboard, and the control module may be configured to control the first antenna unit 21 and the second antenna unit 22 to send and receive signals when the folding structure 10 is in the unfolded state, so that the first antenna unit 21 and the second antenna unit 22 are opened, and a positioning function may be implemented. The control module may be configured to control the first antenna unit 21 and the third antenna unit 23 to send and receive signals when the folding structure 10 is in the folded state, so that the first antenna unit 21 and the third antenna unit 23 are opened. When the folding structure 10 is in the unfolded state, the first antenna unit 21 and the second antenna unit 22 can receive and transmit signals, so that the positioning function can be realized, and the energy consumption can be saved. The control module may be used for controlling the second antenna unit 22 and the fourth antenna unit 24 to receive and transmit signals when the folding structure 10 is in a folded state, so that the second antenna unit 22 and the fourth antenna unit 24 are opened, a positioning function may be implemented, and energy consumption may be saved.
In some embodiments, as shown in fig. 2a, 2b and 2d, the folding apparatus further includes a fourth antenna unit 24, the fourth antenna unit 24 may be disposed in the second area 12, and at least one of the second antenna unit 22 and the fourth antenna unit 24 may form a third UWB antenna. The fourth antenna unit 24 may be disposed on a side of the second area 12 away from the folding area 13, and the fourth antenna unit 24 may be disposed on a side of the second antenna unit 22 away from the folding area 13, where at least one second antenna unit 22 and the corresponding fourth antenna unit 24 are disposed at intervals along a direction perpendicular to a length of the folding area 13. The distance between the fourth antenna element 24 and the adjacent second antenna element 22 may be equal to the distance between the adjacent two first antenna elements 21, and the distance between the fourth antenna element 24 and the adjacent second antenna element 22 may be equal to the distance between the adjacent two second antenna elements 22. The fourth antenna unit 24 and the second antenna unit 22 may form a third UWB antenna, and the third UWB antenna may be used to position a three-dimensional plane, so as to implement an angle measurement and ranging function.
Optionally, the number of the second antenna units 22 and the fourth antenna units 24 is plural, the plural fourth antenna units 24 may be disposed at intervals along the length direction of the folding area 13, each second antenna unit 22 may be disposed at intervals with the corresponding fourth antenna unit 24, and each second antenna unit 22 may be disposed at intervals with the corresponding fourth antenna unit 24 along the direction perpendicular to the length direction of the folding area 13. The fourth antenna unit 24 may be disposed on a side of the second area 12 away from the folding area 13, the fourth antenna unit 24 may be disposed on a side of the second antenna unit 22 away from the folding area 13, and in the case where the folding structure 10 is in a folded state, the fourth antenna unit 24 and the second antenna unit 22 may form a third UWB antenna, and positioning of a three-dimensional plane may be achieved through the third UWB antenna, and an angle measurement function may be achieved.
In the embodiment of the present application, as shown in fig. 1b, the folding device may further include a flexible display screen 30, where the display screen 30 is connected to the folding structure 10, and the folding structure 10 drives the display screen 30 to fold during the folding process of the folding structure 10, and the folding structure 10 drives the display screen 30 to unfold during the unfolding process of the folding structure 10. One end of the display screen 30 may be connected to one end of the folder 10, and the other end of the display screen 30 may be connected to the other end of the folder 10. The display 30 and the folding structure 10 may be connected by a connection bracket.
As shown in fig. 3a, the folding device may be a hinge, and three UWB antenna units are disposed on each hinge, and when the mobile phone is in a folded state, the upper half portion and the lower half portion of the mobile phone are respectively provided with three antenna units to form an L-shaped layout, so that a ranging and angle measuring function can be realized, as shown in fig. 3b to 3 d. The folding device can be applied to the mobile phone, the mobile phone is unfolded when the folding device is unfolded, and the mobile phone is folded when the folding device is folded. In the mobile phone unfolding state, the antenna array gain is increased due to the increase of the number of antenna units, the distance measurement distance is increased, in the mobile phone unfolding state, the angle measurement precision can be improved through the operation of testing angle data for many times and taking an average value, and when a certain UWB antenna unit breaks down or is shielded, the angle measurement and angle measurement work is ensured to be normal through the screening of an algorithm.
As shown in fig. 3a to 3d, 1 denotes a third antenna element, 2 denotes a first antenna element, 3 denotes a first antenna element, 4 denotes a second antenna element, 5 denotes a second antenna element, and 6 denotes a fourth antenna element. In the mobile phone unfolding state, for the ranging function, the number of antenna units is increased, the gain of the antenna is improved, and the ranging distance is increased. The angle measurement function can be realized by applying a UWB antenna in a mobile phone based on AOA (Angle Of Arrival) principle, as shown in fig. 3e, the AOA is calculated by PDOA (PHASE DIFFERENCE Of Arrival), in theory, the phase difference Of PDOA is given by equation (1), d is the distance between antennas, λ is the working wavelength, θ is the angle Of incoming wave, equation (1) is:
A specific derivation procedure is that when the distance D is greater than several wavelengths, D > > D, θ1=θ2=θ can be considered;
after the incoming wave front reaches the first antenna unit, an additional distance d1, d1= dcos θ is required to reach the second antenna unit;
the distance d1 can be obtained from the formula (2), the formula (2) being:
Phase difference Can be obtained from the formula (3), wherein the formula (3) is:
Must be less than 180 °, avoiding affecting the results of AOA, so that all operating frequencies can be set to d < lambda/2, so d <18mm for CH9 (8.25 GHz) as an example;
θ can be obtained from equation (4), equation (4) being:
Wherein, PDOA_H and PDOA_V are the phase differences of the horizontal angle and the vertical angle respectively, and AOA_H and AOA_V represent the angles of measurement of the horizontal angle and the vertical angle respectively. The UWB antenna calculates the angle of incoming waves from the phase difference of the incoming signals of the adjacent two antennas, and according to the derivation formula, in this embodiment, the vertical angle aoa_v1 can be solved by the phase difference pdoa_v1 between the incoming waves reaching ANT1 (antenna unit 1) and ANT2 (antenna unit 2), the vertical angle aoa_v2 can be solved by the phase difference pdoa_v2 between the incoming waves reaching ANT3 (antenna unit 3) and ANT4 (antenna unit 4), and the vertical angle aoa_v3 can be solved by the phase difference pdoa_v3 between the incoming waves reaching ANT5 (antenna unit 5) and ANT6 (antenna unit 6), and then the average value is obtained by the formula (5), and the formula (5) is:
The data are obtained through multiple vertical angle measurement, and then the operation of averaging can obtain higher angle measurement precision, so that the user experience is improved;
For horizontal angle measurement, which is also a similar procedure, the horizontal angle aoa_h1 is obtained by ANT2 and ANT3, and the horizontal angle aoa_h2 is obtained using ANT4 and ANT5, and then the average is taken, which can be obtained by equation (6), equation (6) is:
The data are obtained through carrying out horizontal angle measurement for many times, then the operation of averaging can obtain higher angle measurement precision, and user experience is improved. In addition, when any group of data AOA deviates from the average value too much, the group of data is abandoned, thereby improving the angle measurement precision and the fault tolerance.
Algorithm control can be added to the UWB unit, and under the folding state, the working state of UWB antennas at two sides of the scanning plane is kept, and only one side UWB antenna capable of normally ranging works normally. For the unfolding state, only three UWB antenna units (2, 3 and 4 antenna units in fig. 3 a) can work, when a judging program finds that the receiving level of the UWB antenna units is too low or the angle measurement function is abnormal, surrounding auxiliary units (1, 5 and 6 antenna units in fig. 3 a) can be started, the gain of the whole UWB antenna is enhanced, and meanwhile, the distance measurement distance and the angle measurement precision are improved by mutually calibrating average values. Under different conditions, whether the antenna unit works or not is controlled through an algorithm, so that the power consumption of the whole UWB antenna is reduced, and the duration of the mobile phone is improved.
When all the six antenna units work, the gain is improved, the ranging performance is improved, and special processing of an algorithm is not needed. And for angle measurement, performing vertical angle measurement on the antenna unit 1, the antenna unit 2, the antenna unit 3, the antenna unit 4, the antenna unit 5 and the antenna unit 6, taking an average value of the three test data, and performing horizontal angle measurement on the antenna unit 2, the antenna unit 3, the antenna unit 4 and the antenna unit 5, and taking an average value. When any group of data AOA deviates from the average value too much, the group of data is abandoned, so that the angle measurement precision and the fault tolerance are improved.
The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are to be protected by the present application.
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