CN212033230U

CN212033230U - Wearable device

Info

Publication number: CN212033230U
Application number: CN202020593010.1U
Authority: CN
Inventors: 杨晓东; 梁榜; 付荣
Original assignee: Lanto Electronic Ltd
Current assignee: Lanto Electronic Ltd; Kunshan Liantao Electronics Co Ltd
Priority date: 2020-04-20
Filing date: 2020-04-20
Publication date: 2020-11-27
Anticipated expiration: 2030-04-20

Abstract

The utility model discloses a wearing equipment, wearing equipment is including surrounding drain pan, support frame and the display screen that forms the holding cavity, and the core main part sets up in the holding cavity, and the connecting band is connected with the drain pan, and a plurality of antenna module set up respectively on support frame, drain pan and the connecting band and be connected with the core main part electricity respectively, and this is disclosed realizes the combination of multiple locate mode through setting up a plurality of antenna module, and then the outdoor and indoor all-round location of high accuracy has been realized.

Description

Wearable device

Technical Field

The utility model relates to an electronic equipment's location technical field, concretely relates to wearing equipment.

Background

Modules such as a Global Positioning System (GPS), bluetooth, WiFi and the like are integrated in the intelligent wearable device in the market at present. The positioning function of the wearable device completely depends on the cooperation of the modules. The GPS can realize the positioning precision within 3-5 meters in an outdoor non-blocking environment. However, in an indoor environment, under an overpass, a tunnel, or the like, the GPS signal may be blocked, which may affect positioning. WiFi possesses advantages such as initiative networking, transmission rate are fast, but WiFi's positioning accuracy is the meter level and the consumption is higher, and wearing equipment adopts seldom. The bluetooth has low-power consumption's advantage, often is set up in wearing equipment, but the positioning accuracy of bluetooth is centimetre ~ the degree of meter, and positioning accuracy is relatively poor.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a wearing equipment has improved outdoor and indoor all-round location's precision through the combination of multiple locate mode.

The embodiment of the utility model provides a wearing equipment is provided, wearing equipment includes:

a bottom case;

the support frame is arranged on the bottom shell;

the display screen is arranged on the support frame, and the display screen, the support frame and the bottom shell surround to form an accommodating cavity;

the movement main body is arranged in the accommodating cavity;

at least one connecting band connected with the bottom shell;

and the plurality of antenna modules are respectively electrically connected with the machine core main body, and are respectively arranged on the bracket frame, the bottom shell and the connecting band.

Further, the movement body comprises a GPS (Global Positioning System) Positioning chip and a UWB (Ultra Wide Band) Positioning chip;

the antenna modules comprise a main antenna, a GPS positioning antenna and a UWB positioning antenna;

the GPS positioning antenna is in communication connection with the GPS positioning chip, the GPS positioning antenna is configured to receive outdoor positioning signals, the UWB positioning antenna is in communication connection with the UWB positioning chip, and the UWB positioning antenna is configured to receive indoor positioning signals.

Further, the UWB positioning antenna is formed on an outer side of the bracket frame and/or an outer side of the bottom case by a Laser Direct Structuring (LDS); and/or

The UWB positioning antenna is disposed inside the connection band through an FPC (Flexible Printed Circuit) process.

Furthermore, the UWB positioning antenna comprises three UWB antenna units and two UWB decoupling units, wherein the two UWB decoupling units are respectively arranged between the two adjacent UWB antenna units.

Further, the UWB Antenna unit is in the form of IFA (Inverted-F Antenna);

the UWB decoupling unit is L-shaped, and comprises a first part and a second part, wherein the length of the first part is larger than that of the second part.

Further, the bracket frame comprises a plurality of through holes;

the feed end and the grounding end of the UWB antenna unit are respectively and electrically connected with a radio frequency interface (RF end) and a grounding end of the movement body through the through hole;

and the second part of the UWB decoupling unit is electrically connected with the grounding end of the movement main body through the through hole.

Further, the operating frequency of the UWB antenna unit is 6GHz-9GHz, and the line width of the UWB antenna unit and the UWB decoupling unit is 1 mm.

Further, the main antenna and the GPS positioning antenna are respectively formed outside the bracket frame by a Laser Direct Structuring (LDS) technique.

Further, the GPS positioning Antenna is in an IFA (Inverted-F Antenna) form, and a line width of the GPS positioning Antenna is 1 mm.

Furthermore, the bracket frame comprises a plurality of through holes, and the feed end and the grounding end of the GPS positioning antenna are electrically connected with the radio frequency interface (RF end) and the grounding end of the movement main body through the through holes of the bracket frame, respectively.

Further, the wearable device further includes:

a battery connected with the movement body and the display screen and configured to supply power to the movement body and the display screen.

The wearing equipment of this embodiment is including surrounding drain pan, support frame and the display screen that forms the holding cavity, and the core main part sets up in the holding cavity, and the connecting band is connected with the drain pan, and a plurality of antenna module set up respectively on support frame, drain pan and the connecting band and be connected with the core main part electricity respectively, and this is disclosed realizes the combination of multiple locate mode through setting up a plurality of antenna module, and then realizes outdoor and indoor all-round location.

Drawings

The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

fig. 1 is an exploded schematic view of a wearable device according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of the wearable device according to the embodiment of the present invention;

fig. 3 is a schematic structural diagram of a UWB positioning antenna according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a GPS positioning antenna according to an embodiment of the present invention;

fig. 5 is a schematic diagram of a UWB positioning technology according to an embodiment of the present invention.

Detailed Description

The present invention will be described below based on examples, but the present invention is not limited to only these examples. In the following detailed description of the present invention, certain specific details are set forth in detail. It will be apparent to those skilled in the art that the present invention may be practiced without these specific details. Well-known methods, procedures, components and circuits have not been described in detail so as not to obscure the present invention.

Further, those of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale.

Unless the context clearly requires otherwise, throughout the description, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, what is meant is "including, but not limited to".

In the description of the present invention, it is to be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are intended to be inclusive and mean that, for example, they may be fixedly connected or detachably connected or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Fig. 1-2 are schematic structural views of the wearable device of the present embodiment. Wearing equipment can be for the electronic product that the user of being convenient for was worn with oneself such as intelligent bracelet, intelligent wrist-watch. As shown in fig. 1-2, the wearable device includes a bottom case 1, a support frame 2, a display screen 3, a movement main body 4, a connecting band 5, and a plurality of antenna modules 6. Wherein, support frame 2 sets up on drain pan 1, and display screen 3 sets up on support frame 2, and the three connects and forms wearing equipment's appearance structure. In this embodiment, the frame 2 is buckled on the bottom case 1 from top to bottom. The bottom shell 1 and the support frame 2 may be in any shape such as a square shape or a circular shape. In this embodiment, the bottom case 1 and the stand frame 2 are square.

Specifically, the display screen 3, the bracket frame 2 and the bottom case 1 surround to form a closed accommodating cavity. The core main part 4 set up in the holding cavity, core main part 4 with display screen 3 electricity is connected in order to realize signal transmission, and then shows the function that core main part 4 controlled on display screen 3 with visual ground mode to the user can look over and operate directly perceivedly. The connecting belt 5 is fixedly arranged on two sides of the bottom shell 1, so that the user can wear the shoe conveniently. The display screen 3 can be an LED display screen or a liquid crystal display screen. The shape of the display screen 3 corresponds to the shape of the support frame 2.

The plurality of antenna modules 6 are respectively arranged on the support frame 2, the bottom shell 1 and the connecting belt 5 and are respectively electrically connected with the machine core main body 4 arranged in the accommodating cavity, so that the positioning of the wearable device is realized. The positioning function of the wearable device can prevent the wearable device from being lost or the old or the child carrying the wearable device from going lost and the like.

Specifically, the movement body 4 includes a GPS positioning chip 41 and a UWB positioning chip 42. The plurality of antenna modules 6 include a main antenna 61, a GPS (Global Positioning System) Positioning antenna 62, and a UWB (Ultra Wide Band) Positioning antenna 63. The GPS positioning antenna 62 is in communication connection with the GPS positioning chip 41, and the GPS positioning antenna 62 is used for receiving and sending an outdoor positioning signal. The UWB positioning antenna 63 is in communication connection with the UWB positioning chip 42, and the UWB positioning antenna 63 is used for receiving and sending indoor positioning signals. The UWB positioning chip 42 is small in size, placed inside the accommodating cavity, does not occupy space, and does not increase the size of the wearable device.

The GPS positioning technology is to calculate a signal received by a GPS receiver after error processing to obtain position information, and then transmit the position information to a connected device, and the connected device performs certain calculation and transformation (such as map projection transformation, transformation of a coordinate system, and the like) on the information and then transmits the information to a mobile terminal or a wearable device. In the civil field, the positioning accuracy of the GPS positioning technology is about 10 meters, and therefore the GPS positioning technology is suitable for outdoor positioning.

UWB location technology is a carrier-less communication technology that transmits data using narrow pulses of non-sinusoidal waves on the order of nanoseconds to microseconds. UWB location technology transmits extremely low power signals over a wide frequency spectrum. The positioning accuracy of the UWB positioning technology is centimeter level, and meanwhile the UWB positioning technology has the advantages of strong penetrating power, low power consumption, good anti-multipath effect, high safety and the like, so that the UWB positioning technology is suitable for indoor positioning and can be used for positioning, tracking and navigating indoor static or moving objects and people.

The embodiment can realize outdoor and indoor all-directional positioning by combining UWB positioning and GPS positioning, and the UWB positioning makes up for the defect of poor indoor positioning precision caused by GPS positioning. The wearing device of this embodiment can be applied to uses such as preventing old man, child from going astray from the group.

The main antenna 61 and the GPS positioning antenna 62 are respectively formed outside the bracket frame 2 by a Laser Direct Structuring (LDS) technique, as shown in fig. 2. In the present embodiment, the GPS positioning Antenna 62 is in the form of IFA (Inverted-F Antenna), and the line width of the GPS positioning Antenna 62 is 1mm, as shown in fig. 4. The feeding end 621 and the grounding end 622 of the GPS positioning antenna 62 are electrically connected to the RF end and the grounding end on the main board 4 of the movement through the through hole 21 on the frame 2 of the bracket, respectively, so as to implement signal transmission. Further, adjusting the distance between the feeding terminal 621 and the grounding terminal 622 of the GPS positioning antenna 62 can make the GPS positioning antenna 62 achieve a good positioning effect. In alternative implementations, the GPS positioning antenna 62 may also take the form of a monopole, a dipole, a PIFA, a loop, or the like. The GPS positioning antenna 62 can further integrate Beidou, Glonass and other system antennas, and is matched with the GPS positioning chip 41 to realize multi-mode positioning, so that the positioning precision is improved.

The UWB positioning antenna 63 may be formed on the outer side of the bracket frame 2 and/or the outer side of the bottom case 1 by a Laser Direct Structuring (LDS); and/or, disposed inside the connection band 5 through a FPC (Flexible Printed Circuit) process. The UWB positioning antenna 63 may be electrically connected to the UWB positioning chip 42 through the through hole 21 on the bracket frame 2 or the bottom case 1, thereby realizing signal transmission. In this embodiment, the UWB positioning antenna 63, the main antenna 61 and the GPS positioning antenna 62 may be disposed in different areas of the bracket frame 2, and are electrically connected to the movement main body 4 through different through holes 21 disposed on the bracket frame 2, respectively, so as to achieve signal transmission.

The laser direct forming technology is that a computer is used for controlling the movement of laser according to the track of a conductive pattern, the laser is projected on a plastic support, and a circuit pattern is activated within a few seconds. The FPC process refers to a highly reliable and excellent flexible printed circuit board made of a polyimide or polyester film as a base material. That is, the UWB positioning antenna 63 provided inside the connection band 5 is formed by the process of manufacturing a flexible circuit board.

The setting position of the UWB positioning antenna 63 may be set according to specific requirements. In the present embodiment, the UWB positioning antenna 63 is provided on the outside of the cradle bezel 2, the outside of the bottom case 1, and the inside of the connection belt 5, as shown in fig. 2. In the present embodiment, the accuracy of indoor positioning can be improved by providing a plurality of UWB positioning antennas 63.

In the present embodiment, the UWB positioning antenna 63 includes three UWB antenna units 631 and two UWB decoupling units 632, as shown in fig. 3. The two UWB decoupling units 632 are respectively disposed between two adjacent UWB antenna units 631, so that mutual coupling between the two UWB antenna units 631 can be reduced, and isolation can be improved.

Specifically, the UWB Antenna unit 631 is in the form of an IFA (Inverted-F Antenna), as shown in fig. 3. The line width of the UWB antenna unit 631 is about 1mm, and the length may be set according to the space of the bracket frame 2, the bottom case 1, and the connection belt 5. The operating frequency range of the UWB antenna unit 631 is 6GHz-9 GHz. The feed terminal 6311 and the ground terminal 6312 of the UWB antenna unit 631 are electrically connected to the radio frequency interface (RF terminal) and the ground terminal of the UWB positioning chip 42 through the through hole 21 of the bracket frame 2, respectively. The grounding ends of the chips on the movement body 4 can be converged into one grounding end through the flexible circuit. Therefore, the electrical connection between the feed terminal 6311 and the ground terminal 6312 of the UWB antenna unit 631 and the UWB positioning chip 42 may also be referred to as electrical connection between the radio frequency interface (RF terminal) and the ground terminal of the movement body 4. Further, the distance between the feeding terminal 6311 and the grounding terminal 6312 of the UWB antenna unit 631 is adjusted, so that the UWB antenna unit 631 can achieve a good positioning effect between 6GHz and 9 GHz. In alternative implementations, the GPS positioning antenna 62 and the UWB positioning antenna 63 may also take the form of a monopole, a dipole, a PIFA, a loop, or the like.

Because the space of the bracket frame 2 is limited, the distance between two adjacent UWB antenna units 631 is relatively short, and therefore, a relatively serious mutual coupling phenomenon occurs between the two UWB antenna units 631. In order to solve the coupling problem, a UWB decoupling unit 632 is disposed between two adjacent UWB antenna units 631, so that the current directly coupled from one of the UWB antenna units 631 to the other UWB antenna unit 631 and the current indirectly coupled to the other UWB antenna unit 631 via the UWB decoupling unit 632 can exactly cancel each other, thereby reducing mutual coupling between the two UWB antenna units 631 and increasing the isolation between the two UWB antenna units 631.

Specifically, the UWB decoupling unit 632 includes a first portion 6321 and a second portion 6322. The first portion 6321 has a length greater than the second portion 6322, and the first portion 6321 and the second portion 6322 are connected to form an L-shaped structure. The second part 6322 of the UWB decoupling unit 632 is electrically connected to the ground terminal of the movement body 4 through a through hole 21 provided in the holder frame 2. The UWB decoupling unit 632 has a line width of about 1mm and a length adapted to the length of the UWB antenna unit 631.

Fig. 5 is a schematic diagram of UWB positioning principles. The UWB positioning is realized by the common positioning principles of AOA, TOA, TDOA and the like. Fig. 5 is a schematic diagram of positioning using TOA in UWB positioning technology. In the figure, (1), (2) and (3) are three UWB base stations, and (4) is a wearable device. The wearable equipment respectively transmits pulse signals to the three UWB base stations, the time from the beginning to the return of the pulse signals is calculated, the propagation speed is multiplied, the distance from the pulse signals to the pulse signals is obtained, and the distance from the wearable equipment to the three UWB base stations is obtained by dividing the distance by 2. The coordinates of the three UWB base stations are known, after the distances from the wearable device to the three UWB base stations are measured, 3 circles are drawn through a three-point positioning method, and the intersection point is the position of the UWB positioning tag, namely the position of the wearable device.

The TOA specific algorithm is as follows:

when three UWB base stations are used for positioning, the distance r between the wearable device and the UWB base station i (i ═ 1, 2, 3 …)_iCan be defined as:

wherein, t₀Time constant, t, for the wearable device to start transmitting a pulse signal_iThe time when the pulse signal reaches the wearable device, and c is the speed of light.

The distance radius (r) of three UWB base stations to the wearable device is known₁，r₂，r₃) The position (x) of the wearable device can be estimated using the following formula_m，y_m)

r₁ ²＝(x₁-x_m)²+(y₁-y_m)²

r₂ ²＝(x₂-x_m)²+(y₂-y_m)²

r₃ ²＝(x₃-x_m)²+(y₃-y_m)²

In practical application, in order to achieve more accurate positioning, UWB positioning can utilize more than two times of communication to measure distance, thereby improving positioning accuracy.

In other alternative implementations, the UWB location technology may also use an AOA (Angle of arrival location) based location algorithm, or a TDOA (Time Difference of arrival location) based location algorithm, or an RSS (Received Signal Strength location) based location algorithm, or a hybrid location based on multiple location algorithms to obtain the coordinate position of the wearable device.

In this embodiment, the frame 2 is provided with a plurality of through holes 21. The UWB antenna unit 631, the UWB decoupling unit 632, the GPS positioning antenna 62, and the main antenna 61 may be electrically connected to the terminals of the movement body 4 through the through holes 21, respectively. The through holes 21 are all metallized through holes. The metallized through hole is formed by forming a layer of metal on the surface of the through hole through a chemical plating or electroplating process for conducting electricity or electric connection. The electroless plating is a plating method for reducing metal ions in a plating solution into metal by using a proper reducing agent under the condition of no external current and depositing the metal ions on the surface of a part. Electroplating is a process of attaching a metal film to the surface of a metal or other material article by electrolysis.

In an embodiment, the plurality of antenna modules 6 further include positioning modules such as bluetooth and WiFi, which are used to further increase the positioning mode of the wearable device and improve the positioning accuracy. In an embodiment, the bottom case 1 and the support frame 2 may be provided as an integral structure, and the antenna modules 6 may be respectively disposed at any position outside the integral structure and electrically connected to the movement main body 4 through the through holes provided thereon.

In this embodiment, the movement body 4 further includes a main chip. The main chip is used for realizing other functions of the wearable device. Such as timing, measuring heart rate, answering a phone call, etc. The wearable device further comprises a battery 7. The battery 7 is disposed on the lower side of the movement body 4. The battery 7 is electrically connected with the movement body 4 and the display screen 3 respectively and is used for supplying power to the movement body 4 and the display screen 3. The battery 7 can be a rechargeable storage battery or a detachable and replaceable dry battery. Further, the wearable device further comprises a sealing ring 8, as shown in fig. 1. The sealing ring 8 is arranged between the support frame 2 and the bottom shell 1 and used for sealing and connecting the support frame 2 and the bottom shell 1.

The wearing equipment of this embodiment is including surrounding drain pan, support frame and the display screen that forms the holding cavity, and the core main part sets up in the holding cavity, and the connecting band is connected with the drain pan, and a plurality of antenna module set up respectively on support frame, drain pan and the connecting band and be connected with the core main part electricity respectively, through setting up the combination that a plurality of antenna module realized multiple locate mode, and then the high accuracy has realized outdoor and indoor all-round location.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A wearable device, characterized in that the wearable device comprises:

a bottom shell (1);

the support frame (2) is arranged on the bottom shell (1);

the display screen (3) is arranged on the support frame (2), and the display screen (3), the support frame (2) and the bottom shell (1) surround to form an accommodating cavity;

the movement main body (4) is arranged in the accommodating cavity;

at least one connecting strap (5) connected with the bottom shell (1);

a plurality of antenna modules (6), respectively with core main part (4) electricity is connected, and is a plurality of antenna modules (6) set up respectively in support frame (2) drain pan (1) with on connecting band (5).

2. The wearing apparatus according to claim 1, wherein the movement body (4) includes a GPS positioning chip (41) and a UWB positioning chip (42);

the plurality of antenna modules (6) comprise a main antenna (61), a Global Positioning System (GPS) positioning antenna (62) and an Ultra Wide Band (UWB) positioning antenna (63);

the GPS positioning antenna (62) is in communication connection with the GPS positioning chip (41), the GPS positioning antenna (62) is configured to receive outdoor positioning signals, the UWB positioning antenna (63) is in communication connection with the UWB positioning chip (42), and the UWB positioning antenna (63) is configured to receive indoor positioning signals.

3. Wearing device according to claim 2, wherein said UWB locating antenna (63) is formed by means of laser direct structuring technology LDS on the outside of said frame rim (2) and/or on the outside of said bottom shell (1); and/or

The UWB positioning antenna (63) is arranged inside the connecting band (5) through a flexible circuit board FPC process.

4. The wearing apparatus according to claim 2 or 3, wherein said UWB positioning antenna (63) comprises three UWB antenna units (631) and two UWB decoupling units (632), said two UWB decoupling units (632) being respectively disposed between two adjacent said UWB antenna units (631).

5. The wearing device of claim 4, wherein the UWB antenna unit (631) is in the form of an inverted-F antenna;

the UWB decoupling unit (632) is L-shaped, the UWB decoupling unit (632) comprising a first portion (6321) and a second portion (6322), the first portion (6321) being longer than the second portion (6322).

6. Wearing device according to claim 5, wherein said frame rim (2) comprises a plurality of through holes (21);

a feed end (6311) and a ground end (6312) of the UWB antenna unit (631) are electrically connected with a radio frequency interface (RF) end and a ground end of the movement body (4) through the through hole (21), respectively;

the second part (6322) of the UWB decoupling unit (632) is electrically connected to the ground of the movement body (4) through the through hole (21).

7. The wearable device according to any of claims 5-6, characterized in that the operating frequency of the UWB antenna unit (631) is 6GHz-9GHz and the line width of the UWB antenna unit (631) and the UWB decoupling unit (632) is 1 mm.

8. Wearing device according to claim 2, wherein the main antenna (61) and the GPS positioning antenna (62) are respectively formed outside the cradle frame (2) by laser direct structuring technology LDS.

9. Wearing device according to claim 8, wherein the GPS positioning antenna (62) is in the form of an inverted F antenna IFA, the line width of the GPS positioning antenna (62) being 1 mm.

10. The wearable device according to any one of claims 8 to 9, wherein the cradle frame (2) comprises a plurality of through holes (21), and a feed terminal and a ground terminal of the GPS positioning antenna (62) are electrically connected with a radio frequency interface (RF) terminal and a ground terminal of the movement body (4) through the through holes (21) of the cradle frame (2), respectively.

11. The wearable device of claim 1, further comprising:

a battery (7) connected with the movement body (4) and the display screen (3) and configured to supply power to the movement body (4) and the display screen (3).