CN111158232B - Intelligent host, multi-antenna line switching method and intelligent watch - Google Patents
Intelligent host, multi-antenna line switching method and intelligent watch Download PDFInfo
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- CN111158232B CN111158232B CN201910512178.7A CN201910512178A CN111158232B CN 111158232 B CN111158232 B CN 111158232B CN 201910512178 A CN201910512178 A CN 201910512178A CN 111158232 B CN111158232 B CN 111158232B
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000005259 measurement Methods 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 8
- 230000005855 radiation Effects 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 6
- 238000004891 communication Methods 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 230000001808 coupling effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000861 Mg alloy Inorganic materials 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
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- 230000015556 catabolic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
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- 230000005484 gravity Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G04—HOROLOGY
- G04G—ELECTRONIC TIME-PIECES
- G04G17/00—Structural details; Housings
- G04G17/02—Component assemblies
- G04G17/04—Mounting of electronic components
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- G—PHYSICS
- G04—HOROLOGY
- G04G—ELECTRONIC TIME-PIECES
- G04G17/00—Structural details; Housings
- G04G17/02—Component assemblies
- G04G17/06—Electric connectors, e.g. conductive elastomers
-
- G—PHYSICS
- G04—HOROLOGY
- G04G—ELECTRONIC TIME-PIECES
- G04G21/00—Input or output devices integrated in time-pieces
- G04G21/04—Input or output devices integrated in time-pieces using radio waves
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/02—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole
- H01Q3/04—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole for varying one co-ordinate of the orientation
- H01Q3/06—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole for varying one co-ordinate of the orientation over a restricted angle
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3827—Portable transceivers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Electric Clocks (AREA)
Abstract
The invention discloses an intelligent host, a multi-antenna circuit switching method and an intelligent watch, wherein the intelligent host comprises a support frame and a host body, the host body is rotatably connected to the support frame, the host body is provided with an antenna, a controller, a radio frequency switch and a plurality of antenna tuning circuits, the antenna is electrically connected with the antenna tuning circuits, the antenna tuning circuits are electrically connected with the radio frequency switch, the radio frequency switch is electrically connected with the controller, the controller is used for sending a switching signal to the radio frequency switch according to the current state of the host body, the radio frequency switch is used for switching the antenna according to the switching signal to be connected to the antenna tuning circuits corresponding to the current state, and the resonance frequency points of the antenna tuning circuits are different. According to the intelligent host, the multi-antenna circuit switching method and the intelligent watch, which are provided by the embodiment of the invention, the antenna tuning circuit can be switched along with the rotation angle of the host body relative to the support frame, so that the antenna performance is enhanced, and the call quality of a user during call is improved.
Description
Technical Field
The invention relates to the field of intelligent watches, in particular to an intelligent host, a multi-antenna line switching method and an intelligent watch.
Background
Currently, in order to meet the requirements of users for more functional implementation of smart watches, the antenna performance of smart watches is greatly affected. The degradation of antenna performance is mainly caused by: first, in order to meet the pursuit of users for smaller volumes of smart watches, the area of the circuit board within the smart watch decreases with the volume of the smart watch, so that the performance of the antenna on the circuit board decreases with the decrease in size. Second, in order to make the appearance of the smart watch attractive and fashionable, most smart watches incorporate designs for decoration such as metal pieces and ceramic pieces, but these metal pieces and ceramic pieces block the signal transmission of the antenna to some extent. Thirdly, in order to meet the requirement of shooting the foreground or the background of the intelligent watch by a user, the heads of the intelligent watch are designed to be overturned, but because the heads are overturned, the antenna performance difference of the heads at different angles is larger, so that the conversation quality of the user is poorer at certain angles.
Since the antenna performance is closely related to the communication quality of the smart watch, it is particularly important for the smart watch to have good antenna performance.
Disclosure of Invention
The invention discloses an intelligent host, a multi-antenna circuit switching method and an intelligent watch, which can switch an antenna tuning circuit along with the rotation angle of a host body relative to a supporting frame so as to enhance the transmission performance of an antenna.
In order to solve the above technical problems, in a first aspect, the present invention provides an intelligent host, including:
a support frame; and
the host body is rotatably connected with the support frame so that the host body can rotate relative to the support frame and can be converted between different states;
the host body is provided with an antenna, a controller, a radio frequency change-over switch and a plurality of antenna tuning circuits, wherein the antenna is electrically connected with the antenna tuning circuits, the antenna tuning circuits are electrically connected with the radio frequency change-over switch, and the radio frequency change-over switch is electrically connected with the controller;
the controller is used for sending a switching signal to the radio frequency switch according to the current state of the host body, and the radio frequency switch is used for switching the antenna to be connected to the antenna tuning circuits corresponding to the current state according to the switching signal, and the resonance frequency points of the antenna tuning circuits are different.
As an optional implementation manner, in an embodiment of the first aspect of the present invention, the different states include at least a first state and a second state;
the first state is a state that the host body is overlapped on the supporting frame;
the second state is a state that the host body rotates upwards relative to the supporting frame to form a certain angle.
As an optional implementation manner, in an embodiment of the first aspect of the present invention, the plurality of antenna tuning circuits includes at least a first antenna tuning circuit and a second antenna tuning circuit;
when the host body is in the first state, the antenna is connected with the first antenna tuning circuit;
when the host body is in the second state, the antenna is connected with the second antenna tuning circuit.
In an optional implementation manner, in an embodiment of the first aspect of the present invention, the host body is further provided with a sensor electrically connected to the controller, where the sensor is configured to detect a position of the host body relative to the support frame, and send a position signal to the controller, and the controller is configured to send the switching signal to the radio frequency switch according to the position signal.
In an optional embodiment of the first aspect of the present invention, a first connection portion is provided at one end of the host body, and the support frame is provided with a second connection portion corresponding to the first connection portion, and the second connection portion is rotatably connected to the first connection portion, so that the host body can rotate relative to the support frame to form the different states.
In an optional implementation manner, in an embodiment of the first aspect of the present invention, the host body includes a plastic middle frame, a bottom shell, and a display screen, two ends of the plastic middle frame are provided with openings, which are a lower opening and an upper opening, respectively, and the first connection portion is disposed on an outer portion of the plastic middle frame, so that the plastic middle frame can rotate relative to the support frame, the bottom shell covers the lower opening of the plastic middle frame, and the inner portion of the bottom shell is communicated with the inner portion of the plastic middle frame, and the display screen covers the upper opening of the plastic middle frame.
In an alternative embodiment, in an embodiment of the first aspect of the present invention, the antenna is disposed on an inner surface of the plastic middle frame, and the antenna is disposed on a position of the plastic middle frame near the first connection portion.
As an optional implementation manner, in an embodiment of the first aspect of the present invention, the host body is further provided with a battery and a circuit board electrically connected to the battery, the battery includes a first battery portion and a second battery portion extending upward from the first battery portion, and the first battery portion is disposed in the bottom case;
the circuit board is stacked above the second battery part, and the circuit board and the second battery part are both arranged in the plastic middle frame.
In an optional embodiment, in an embodiment of the first aspect of the present invention, the material of the support frame is metal.
In a second aspect, an embodiment of the present invention provides a multi-antenna line switching method of an intelligent host, where the intelligent host includes a support frame and a host body, where the host body is rotatably connected to the support frame, so that the host body can rotate relative to the support frame and switch between different states, the host body is provided with an antenna, a controller, a radio frequency switch, and multiple antenna tuning circuits, the antenna is electrically connected with the multiple antenna tuning circuits, the multiple antenna tuning circuits are electrically connected with the radio frequency switch, and the radio frequency switch is electrically connected with the controller, where a resonance frequency point of each antenna tuning circuit is different; the method comprises the following steps:
the controller sends a switching signal to the radio frequency switch according to the current state of the host body;
the radio frequency switch switches the antenna to be connected to the antenna tuning circuit corresponding to the current state according to the switching signal.
As an optional implementation manner, in an embodiment of the second aspect of the present invention, the smart host further includes a sensor electrically connected to the controller, and before the controller sends a switching signal to the radio frequency switch according to the different states of the host body, the method further includes
The sensor detects the current state of the host body and sends the current state to the controller.
As an optional implementation manner, in an embodiment of the second aspect of the present invention, the sensor detects a current state of the host body and sends the current state to the controller, including:
the sensor measures the position of the host body relative to the supporting frame and records measured data;
determining the current state of the host body from preset states according to the measurement data;
generating a state signal and sending the state signal to the controller, wherein the state signal is a signal carrying current state information of the host body.
As an optional implementation manner, in an embodiment of the second aspect of the present invention, the controller sends a switching signal to the radio frequency switch according to the current state of the host body, including
The controller receives the state signal, analyzes the state signal and determines the antenna tuning circuit corresponding to the state signal from preset antenna tuning circuits;
and generating a switching signal and sending the switching signal to the radio frequency switching switch, wherein the switching signal is a signal carrying the antenna tuning circuit information corresponding to the state signal.
As an optional implementation manner, in an embodiment of the second aspect of the present invention, the radio frequency switch switches, according to the switching signal, the antenna to be connected to the antenna tuning circuit corresponding to the current state, and includes:
prompting an antenna tuning circuit corresponding to the current state on a display screen of the host body to enable a user to select;
and controlling the radio frequency change-over switch to switch the antenna to be connected to an antenna tuning circuit corresponding to the current state according to the result selected by the user.
In a third aspect, an embodiment of the present invention provides a smart watch, where the smart watch includes a watchband and the smart host according to the first aspect, and the watchband is connected to the support frame.
Compared with the prior art, the invention has the beneficial effects that:
(1) Has stronger antenna performance. The invention provides an intelligent host, a multi-antenna line switching method and an intelligent watch, wherein a host body is provided with an antenna, a controller, a radio frequency switch and at least two antenna tuning circuits (such as a first antenna tuning circuit and a second antenna tuning circuit) with different resonance frequency points, when the host body rotates relative to a support frame, the controller can control the radio frequency switch to switch the antenna to be connected to the antenna tuning circuit corresponding to the current state of the host body, for example: the antenna connected with the first antenna tuning circuit can be switched to be connected with the second antenna tuning circuit, so that the radiation efficiency of the antenna can be maintained at a higher level, and the antenna has stronger antenna performance, so that the transmission performance of the antenna can be enhanced, the conversation quality of a user is higher during conversation, and the conversation stability and coverage capability of the watch are improved.
(2) The antenna tuning circuit can be switched accurately. According to the invention, the host body is further provided with the sensor, the sensor can detect the position of the host body relative to the support frame and send the position signal to the controller, so that the controller can control the radio frequency switch to accurately switch the antenna to the antenna tuning circuit corresponding to the current state of the host body according to the received position signal, the radiation efficiency of the antenna can be optimal, and the conversation quality of a user in conversation is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an intelligent host with a host body in a first state according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an intelligent host with a host body in a second state according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an intelligent host according to a first embodiment of the present invention;
FIG. 4 is a linear graph showing the low frequency efficiency of an antenna according to an embodiment of the present invention as a function of a certain angle α;
fig. 5 is a schematic diagram of an internal structure of an intelligent host according to a first embodiment of the present invention;
FIG. 6 is another linear graph of low frequency efficiency of an antenna according to an embodiment of the present invention as a function of angle α;
fig. 7 is a flow chart of a multi-antenna line switching method of an intelligent host according to a second embodiment of the present invention;
FIG. 8 is a block flow diagram of a specific method of step 101 according to the second embodiment of the present invention;
FIG. 9 is a block flow diagram of a specific method of step 102 according to the second embodiment of the present invention;
fig. 10 is a schematic structural diagram of a smart watch with a host body in a first state according to a third embodiment of the present invention;
fig. 11 is a schematic structural diagram of a smart watch with a host body in a second state according to a third embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present invention and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.
Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present invention will be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, the terms "mounted," "configured," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, the terms "first," "second," and the like, are used primarily to distinguish between different devices, elements, or components (the particular species and configurations may be the same or different), and are not used to indicate or imply the relative importance and number of devices, elements, or components indicated. Unless otherwise indicated, the meaning of "a plurality" is two or more.
The embodiment of the invention discloses an intelligent host, a multi-antenna circuit switching method and an intelligent watch, wherein an antenna can be switched along with the rotation angle of a host body relative to a supporting frame to be connected to an antenna tuning circuit corresponding to the front state of the host body so as to enhance the transmission performance of the antenna.
The technical scheme of the invention will be further described with reference to the examples and the accompanying drawings.
Example 1
Referring to fig. 1 to 4, an intelligent host according to an embodiment of the present invention includes a support frame 1 and a host body 2, wherein the host body 2 is rotatably connected to the support frame 1, so that the host body 2 can rotate relative to the support frame 1 and switch between different states, the host body 2 is provided with an antenna 20, a controller 21, a radio frequency switch 22 and a plurality of antenna tuning circuits, the antenna 20 is electrically connected with the plurality of antenna tuning circuits, the plurality of antenna tuning circuits are electrically connected with the radio frequency switch 22, the radio frequency switch 22 is electrically connected with the controller 21, the controller 21 is configured to send a switching signal to the radio frequency switch 22 according to a current state of the host body 2, the radio frequency switch 22 is configured to switch the antenna 20 to the antenna tuning circuit corresponding to the current state according to the switching signal, and resonance frequency points of the antenna tuning circuits are different.
In this patent, intelligent host computer can be applied to intelligent devices such as intelligent wrist-watch, intelligent bracelet. When the intelligent host is applied to the intelligent watch, the intelligent host can be used as a watch main body of the intelligent watch. That is, the host body 2 can realize functions such as talking, transmitting and receiving information, photographing, video talking, scanning two-dimensional codes, mobile payment, checking environment information, checking body information, and the like. Therefore, in the present embodiment, the host body 2 includes a display screen 26, a battery 27, a circuit board 28, and a camera module, a speaker, a microphone, a card holder assembly, a communication module, and sensors for realizing various functions, wherein the sensors may be a gravity sensor, an acceleration sensor, a distance sensor, a heart rate sensor, a barometric sensor, an ultraviolet detector, etc. The host body 2 may also include elements for identification, such as a fingerprint identification module, a facial identification module, etc.
In this embodiment, in order to realize that the host body 2 can rotate relative to the support frame 1, a first connecting portion 23 is disposed at one end of the host body 2, and a second connecting portion 10 is disposed on the support frame 1 corresponding to the first connecting portion 23, and the second connecting portion 10 is rotatably connected to the first connecting portion 23, so that the host body 2 can rotate relative to the support frame 1 to form different states. Specifically, the first connecting portion 23 may be a shaft hole or a rotating shaft disposed at one end of the main body 2, and the second connecting portion 10 may be a rotating shaft or a shaft hole disposed at the supporting frame 1, that is, the first connecting portion 23 and the second connecting portion 10 are mutually matched hole shafts or shaft holes, that is, when the first connecting portion 23 is disposed at the shaft hole of the main body 2, the second connecting portion 10 is a rotating shaft disposed at the supporting frame 1; when the first connecting portion 23 is a rotating shaft provided on the main body 2, the second connecting portion 10 is a shaft hole provided on the supporting frame 1. Preferably, the first connecting portion 23 is a shaft hole provided at one end of the main body 2, and the second connecting portion 10 is a rotating shaft provided at the supporting frame 1.
Therefore, through changing the gesture of host computer body 2 relative support frame 1, can change the orientation of locating the module of making a video recording of host computer body 2 to satisfy different application occasions of user, different use scenes and to the operation demand of module of making a video recording, convenience of customers is to the shooting of intelligent wrist-watch prospect or background.
The different states at least comprise a first state and a second state. Specifically, as shown in fig. 1, the first state is a state in which the host body 2 is stacked on the support frame 1. Specifically, in the first state, the main body 2 is stacked above the support frame 1, that is, the main body 2 completely covers the support frame 1, and the main body 2 cannot rotate relative to the support frame 1. As shown in fig. 2, the second state is a state in which the main body 2 is rotated upward relative to the support frame 1 by a certain angle, that is, a state in which the main body 2 is rotatable from the first state in the axial direction of the second connection portion 10 and forms a certain angle with the support frame 1, wherein a certain angle formed between the main body 2 and the support frame 1 is α,0 ° < α < 180 °, for example, α=10 °, α=25 °, α=60 °, α=90 °, α=170°, and the like.
It will be appreciated that when the smart host structure is applied to the smart watch, although the host body 2 can rotate to a state in which the host body 2 and the support frame 1 form an angle greater than 180 ° along the axial direction of the support frame 1, since the host body 2 can rotate to a state in which the host body 2 and the support frame 1 form an angle greater than 180 ° along the axial direction of the second connection portion 10, if the host body 2 continues to rotate along the axial direction of the second connection portion 10, the host body 2 is blocked by the watchband of the smart watch, and therefore, the host body 2 is generally not rotated to a state in which the host body 2 and the support frame 1 form an angle greater than 180 ° in the process of rotating relative to the support frame 1.
In this embodiment, as shown in fig. 3, the host body 2 includes a plastic middle frame 24, a bottom shell 25 and a display screen 26, two ends of the plastic middle frame 24 are provided with openings, namely a lower opening and an upper opening, the first connecting portion 23 is disposed outside the plastic middle frame 24, so that the plastic middle frame 24 can rotate relative to the support frame 1, the bottom shell 25 covers the lower opening of the plastic middle frame 24, the inside of the bottom shell 25 is communicated with the inside of the plastic middle frame 24, and the display screen 26 covers the upper opening of the plastic middle frame 24.
Further, the host body 2 is further provided with a battery 27 and a circuit board 28 electrically connected with the battery 27, the battery 27 includes a first battery portion 271 and a second battery portion 272 extending upward from the first battery portion 271, the first battery portion 271 is disposed in the bottom shell 25, the circuit board 28 is stacked above the second battery portion 272, and the circuit board 28 and the second battery portion 272 are both disposed inside the plastic middle frame 24. The removal of the battery 27 is facilitated by the second battery portion 272 of the battery 27 protruding outside the bottom case 25.
It will be appreciated that other components of the host body 2, such as: the motor, speaker, microphone, camera module, and cartridge assembly are also distributed inside the main body 2, and specific details and schematic drawings are not described here.
In this embodiment, the support frame 1 has an approximately flat plate structure to support the bottom of the main body 2. The material of the support frame 1 may be metal, for example: stainless steel, magnesium alloy, aluminum alloy, etc., so that the surface of the main body 2 does not need to be sprayed with non-conductive paint to achieve an aesthetic effect.
It can be known that the support frame 1 and the second connecting portion 10 can be integrally formed, and the material of the second connecting portion 10 can also be a metal material.
In the present embodiment, the antenna 20 is disposed on the inner surface of the plastic middle frame 24, and the antenna 20 can be disposed at a position of the plastic middle frame 24 near the first connecting portion 23, so as to avoid interference of other electronic components (such as the motor, the microphone, the camera module, or the sensor for implementing various functions) in the host body 2 to the antenna signal. The antenna 20 may be disposed on the inner surface of the plastic middle frame 24 of the main body 2 by an antenna manufacturing process, such as LDS/FPC/PDS process.
The antenna 20 of the present invention may be a 4G main communication antenna, and covers the frequency range of 824Mhz to 2690Mhz, including the low frequency range of 824Mhz to 960Mhz and the medium and high frequency range of 1710Mhz to 2690Mhz. It will be appreciated that if the efficiency of the antenna 20 is low, the communication quality of the wristwatch is likely to be seriously affected, and the call stability, data transmission rate and call coverage capability of the smart host are reduced, while the wireless power consumption of the smart host is also reduced.
In the actual antenna signal debugging process, it is found that: when the host body 2 rotates relative to the support frame 1, the difference of the antenna performance of the host body 2 at different angles is larger, so that the conversation quality of a user during conversation is poor at certain angles. Specifically, when the main body 2 is turned around the second connection portion 10, a certain angle α is formed between the main body 2 and the support frame 1, and it is found in the debugging of the actual antenna signal that when the main body 2 is turned around the second connection portion 10 to a different angle, the antenna efficiency of the main body 2 is affected by the same, especially the low frequency efficiency of the antenna.
Therefore, taking the low frequency (at this time, the frequency is 960 Mhz) efficiency of the antenna as an example, the effect of the certain angle α formed between the main body 2 and the supporting frame 1 on the antenna efficiency of the main body 2 is analyzed. When the intelligent host is applied to the intelligent watch and worn on the hand of a user, when the host body 2 is in the first state, the coupling effect between the prolonged ground of the host body 2 and the arm is strong, and the radiation efficiency of the antenna at low frequency is good. However, as the main body 2 rotates, that is, the angle α increases gradually, the coupling effect between the extension ground and the arm becomes weak, resulting in low radiation efficiency of the antenna, and thus, low frequency efficiency of the antenna is reduced. The linear relationship between the antenna low frequency efficiency change and the certain angle α is shown in fig. 4, where "1", "62" and "124" in the figure refer to the channel numbers 1, 62 and 124 in the GSM900 frequency band, respectively, and it should be understood that different channel numbers correspond to different frequencies.
As can be seen from fig. 4, the low frequency efficiency of the antenna is the lowest when the certain angle α is 30 °.
Therefore, in order to solve the above-mentioned problems, the main body 2 can have good antenna performance when rotating to form different angles relative to the supporting frame 1, so as to ensure the call quality of the user during the call, and the circuit processing as shown in fig. 5 can be performed. Specifically, the plurality of antenna tuning circuits are disposed on the circuit board 28, and at least include a first antenna tuning circuit and a second antenna tuning circuit, and when the host body 2 is in the first state (α=0°), the antenna 20 is connected to the first antenna tuning circuit; when the host body 2 is in the second state (alpha > 0 deg.), the antenna is connected with the second antenna tuning circuit, so that the antenna 20 generates maximum radiation efficiency in the frequency band used, and the efficiency of the antenna 20 is improved.
Further, in order to accurately switch the antenna 20 to an antenna tuning line corresponding to the current state of the host body 2, the host body 2 is further provided with a sensor 29 electrically connected to the controller 21, the sensor 29 is configured to detect a position of the host body 2 relative to the support frame 1, and send a position signal to the controller 21, and the controller 21 is configured to send a switching signal to the rf switching switch 22 according to the position signal, so that the rf switching switch 22 can switch the antenna 20 to be connected to the antenna tuning circuit corresponding to the current state according to the switching signal.
Specifically, the sensor 29 may be a displacement sensor, an angle sensor, a hall sensor, or the like. For example: when the sensor 29 is a displacement sensor, the sensor 29 mainly detects the distance between one end of the host body 2 and the support frame 1 to determine the position of the host body 2 relative to the support frame 1, thereby determining the current state of the host body 2. For another example: when the sensor 29 is an angle sensor, the sensor mainly detects the angle formed by one end of the host body 2 relative to the support frame 1 to determine the position of the host body 2 relative to the support frame 1, thereby determining the current state of the host body 2.
It is to be understood that the interval setting of the certain angle α is not limited to the above-mentioned division, that is, the state division of the host body 2 is not limited to the above-mentioned division of the states, and the state of the host body 2 may be set to more states according to the finer division of the interval of the certain angle α. For example: taking an example that a certain angle alpha formed between the host body 2 and the support frame 1 is 0-90 degrees, the certain angle alpha can be divided into three sections, wherein the three sections comprise alpha=0°,0 ° < alpha less than or equal to 30 degrees and 30 ° < alpha less than or equal to 90 degrees, and correspondingly, different states of the host body 2 can comprise a first state, a second state and a third state, wherein when alpha=0°, the first state corresponds to the host body 2, the second state corresponds to the host body 2, and the third state corresponds to the host body 2, wherein the second state corresponds to the 0 ° < alpha less than or equal to 30 degrees, and the third state corresponds to the host body 2. The plurality of antenna tuning circuits at least includes a first antenna tuning circuit, a second antenna tuning circuit, and a third antenna tuning circuit, and when the host body 2 is in the first state, the antenna 20 is connected with the first antenna tuning circuit; when the host body 2 is in the second state, the antenna 20 is connected with the second antenna tuning circuit, and when the host body 2 is in the third state, the antenna 20 is connected with the third antenna tuning circuit. Also, there is a linear relationship between the antenna low frequency efficiency variation and the certain angle α in this case, and the linear curve thereof is shown in fig. 6.
As can be seen from fig. 6, the antenna performance tends to remain enhanced with increasing angle α. As can be seen from fig. 4 and 6, the antenna performance of the host body 2 is better than the original antenna performance by switching the antenna connection to the antenna tuning circuit corresponding to the current state according to the current state of the host body 2, and the antenna performance of the host body 2 can be maintained at a higher level in almost all states.
According to the intelligent host provided by the embodiment of the invention, the host body is provided with the antenna, the controller, the radio frequency switch and at least two antenna tuning circuits (such as a first antenna tuning circuit and a second antenna tuning circuit) with different resonance frequency points, and when the host body rotates relative to the support frame, the controller can control the radio frequency switch to switch the antenna to be connected to the antenna tuning circuit corresponding to the current state of the host body, for example: the antenna connected with the first antenna tuning circuit can be switched to be connected with the second antenna tuning circuit, so that the radiation efficiency of the antenna can be maintained at a higher level, and the antenna has stronger antenna performance, thereby enhancing the transmission performance of the antenna.
Example two
Referring to fig. 7 to fig. 9, a second embodiment of the present invention provides a switching method for implementing multi-antenna switching by using the smart host according to the first embodiment, where the multi-antenna switching method includes:
101. the sensor detects the current state of the host body and sends the current state to the controller, and the method specifically comprises the following steps:
101a, the position of the host computer body relative to the support frame is measured by the sensor, and measured data obtained by measurement are recorded.
Specifically, the sensor may be a displacement sensor, an angle sensor, a hall sensor, or the like. For example: when the sensor is a displacement sensor, the sensor mainly determines the position of the host body relative to the support frame by detecting the distance between one end of the host body and the support frame, so as to determine the current state of the host body. For another example: when the sensor is an angle sensor, the sensor mainly determines the position of the host body relative to the support frame by detecting the angle formed by one end of the host body relative to the support frame. The sensor in the invention can be preferably an angle sensor, and the recorded measurement data is a specific numerical value of a certain angle formed by one end of the host body relative to the supporting frame.
101b, determining the current state of the host body from the preset states according to the measurement data.
Because the sensor in the invention is preferably an angle sensor, the recorded measurement data is a specific value of a certain angle formed by one end of the host body relative to the support frame, and the current state of the host body can be determined from the preset state according to the measured certain angle.
Taking a certain angle alpha formed between the main body and the support bracket as an example, the angle alpha is 0-90 degrees, and different angle intervals correspond to different states, and the relation is shown in the following table 1:
TABLE 1
Specifically, for example: when the angle sensor detects that a certain angle alpha formed between the host body and the supporting frame is 0 degrees, the sensor at the moment can determine the current state of the host body corresponding to the certain angle alpha of 0 degrees from the preset state, for example: a first state.
For another example: when the angle sensor detects that a certain angle alpha formed between the host body and the supporting frame is 20 degrees, the sensor at the moment can determine the current state of the host body corresponding to the certain angle alpha of 20 degrees from the preset state, for example: and a second state.
Also for example: when the angle sensor detects that a certain angle alpha formed between the host body and the supporting frame is 60 degrees, the sensor at the moment can determine the current state of the host body corresponding to the certain angle alpha of 60 degrees from the preset state, for example: and a third state.
101c, generating a status signal and sending the status signal to the controller.
The status signal is a signal carrying current status information of the host body.
102. The controller sends a switching signal to the radio frequency switch according to the current state of the host body, and specifically comprises the following steps:
102a, the controller receives the status signal, analyzes the status signal, and determines an antenna tuning circuit corresponding to the status signal from among preset antenna tuning circuits.
It will be appreciated that the different states correspond to different antenna tuning circuits, the relationship of which is shown in table 2 below:
| different angular intervals | Different states | Antenna tuning circuit |
| 0° | First state | First antenna tuning circuit |
| 0°＜α≤30° | Second state | Second antenna tuning circuit |
| 30°＜α≤90° | Third state | Third antenna tuning circuit |
TABLE 2
Specifically, for example: when the controller receives the status signal from the sensor, the controller analyzes the status signal, and if the host body is in the first state, the controller determines that the antenna tuning circuit connected with the antenna should be the first antenna tuning circuit from the preset antenna tuning circuits.
For another example: and when the controller receives the state signal from the sensor, analyzing the state signal, and if the host body is in the second state, determining that the antenna tuning circuit connected with the antenna at the moment is a second antenna tuning circuit from the preset antenna tuning circuits.
102b, generating a switching signal and sending the switching signal to the radio frequency switch.
The switching signal is a signal carrying antenna tuning circuit information corresponding to the status signal.
103. The radio frequency switch switches the antenna to be connected to the antenna tuning circuit corresponding to the current state according to the switching signal.
In this embodiment, when the antenna tuning circuit is determined, the rf switch connects the antenna switch to the antenna tuning circuit corresponding to the current state according to the determined antenna tuning circuit. For example: a first antenna tuning circuit, a second antenna tuning circuit, and so on.
As an alternative embodiment, the radio frequency switch may automatically switch the antenna connection to the antenna tuning circuit corresponding to the current state according to the switching signal.
As another alternative implementation manner, the antenna tuning circuit corresponding to the current state is prompted on the display screen of the host body for selection by a user, and then the radio frequency change-over switch is controlled to switch the antenna to be connected to the antenna tuning circuit corresponding to the current state according to the result of the selection by the user. In this embodiment, it is known that the display screen may be a display screen of a smart watch, which may display an icon prompting an antenna tuning circuit corresponding to the current state, and when the icon appears on the display screen, the user may select to connect the antenna to the antenna tuning circuit according to his own wish.
According to the multi-antenna line switching method of the intelligent host, which is provided by the embodiment of the invention, the antenna is accurately switched to the antenna tuning line corresponding to the current state of the host body, so that the radiation efficiency of the antenna can be optimal, and a user has higher conversation quality during conversation.
Example III
Referring to fig. 10 and 11, a third embodiment of the present invention provides a smart watch, which includes a watchband and the smart host according to the first embodiment, wherein the watchband is connected to the support frame.
In this embodiment, the two watchbands preferably comprise a first watchband 1a and a second watchband 1b, and the two ends of the support frame are respectively provided with a third connecting part and a fourth connecting part, wherein the third connecting part is connected with the first watchband 1a, and the fourth connecting part is connected with the second watchband 1b.
Taking the third connecting portion and the first watchband 1a as an example, the third connecting portion may be a shaft hole or a rotating shaft arranged at one end of the support frame, the rotating shaft or the shaft hole is arranged at one end of the first watchband 1a corresponding to the third connecting portion, that is, when the third connecting portion is the shaft hole arranged at one end of the support frame, the rotating shaft is arranged at one end of the first watchband 1a corresponding to the third connecting portion; when the third connecting part is a rotating shaft arranged at one end of the supporting frame, one end of the first watchband 1a is provided with a shaft hole corresponding to the third connecting part. Preferably, the third connecting portion in the present invention is a rotating shaft provided at one end of the supporting frame, and one end of the first watchband 1a is provided with a shaft hole corresponding to the third connecting portion.
According to the smart watch provided by the third embodiment of the invention, the antenna can be switched along with the rotation angle of the main body relative to the support frame and connected to the antenna tuning circuit corresponding to the front state of the main body, so that the transmission performance of the smart watch antenna is enhanced.
The above describes in detail an intelligent host, a multi-antenna line switching method and an intelligent watch disclosed in the embodiments of the present invention, and specific examples are applied to describe the principles and implementations of the present invention, where the description of the above embodiments is only used to help understand the principles and core ideas of the present invention; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present invention, the present description should not be construed as limiting the present invention in view of the above.
Claims (13)
1. An intelligent watch, characterized in that, intelligent watch includes smart host computer and watchband, smart host computer includes:
the watchband is connected to the support frame; and
the host body is rotatably connected with the support frame so that the host body can rotate relative to the support frame and can be converted between different states;
the host body is provided with an antenna, a controller, a radio frequency change-over switch and a plurality of antenna tuning circuits, wherein the antenna is electrically connected with the antenna tuning circuits, the antenna tuning circuits are electrically connected with the radio frequency change-over switch, and the radio frequency change-over switch is electrically connected with the controller;
when the intelligent watch is worn on the hand of a user, the controller is used for sending a switching signal to the radio frequency switch according to the current state of the host body, and the radio frequency switch is used for switching the antenna to be connected to the antenna tuning circuit corresponding to the current state according to the switching signal, and the resonance frequency points of the antenna tuning circuits are different;
the different states at least comprise a first state and a second state;
the first state is a state that the host body is overlapped on the supporting frame;
the second state is a state that the host body rotates upwards relative to the supporting frame to form a certain angle.
2. The smart watch of claim 1, wherein the plurality of antenna tuning circuits includes at least a first antenna tuning circuit and a second antenna tuning circuit;
when the host body is in the first state, the antenna is connected with the first antenna tuning circuit;
when the host body is in the second state, the antenna is connected with the second antenna tuning circuit.
3. The smart watch of claim 1 or 2, wherein the host body is further provided with a sensor electrically connected to the controller, the sensor is configured to detect a position of the host body relative to the support frame and send a position signal to the controller, and the controller is configured to send the switching signal to the radio frequency switch according to the position signal.
4. The smart watch according to claim 1 or 2, wherein a first connection portion is provided at one end of the main body, and the support frame is provided with a second connection portion corresponding to the first connection portion, and the second connection portion is rotatably connected to the first connection portion, so that the main body can rotate relative to the support frame to form the different states.
5. The smart watch of claim 4, wherein the main body comprises a plastic middle frame, a bottom shell and a display screen, wherein openings are formed at two ends of the plastic middle frame, the openings are respectively a lower opening and an upper opening, the first connecting portion is arranged on the outer portion of the plastic middle frame so that the plastic middle frame can rotate relative to the supporting frame, the bottom shell covers the lower opening of the plastic middle frame, the inner portion of the bottom shell is communicated with the inner portion of the plastic middle frame, and the display screen covers the upper opening of the plastic middle frame.
6. The smart watch of claim 5, wherein the antenna is disposed on an inner surface of the plastic bezel, and the antenna is disposed on the plastic bezel near the first connection portion.
7. The smart watch of claim 5, wherein the host body is further provided with a battery and a circuit board electrically connected with the battery, the battery comprising a first battery portion and a second battery portion extending upward from the first battery portion, the first battery portion being disposed within the bottom case;
the circuit board is stacked above the second battery part, and the circuit board and the second battery part are both arranged in the plastic middle frame.
8. The smart watch of claim 1 or 2, wherein the support is made of metal.
9. The multi-antenna circuit switching method for the intelligent watch is characterized in that the intelligent watch comprises an intelligent host and a watchband, the intelligent host comprises a support frame and a host body, the watchband is connected to the support frame, the host body is rotatably connected to the support frame so that the host body can rotate relative to the support frame and is converted between different states, the host body is provided with an antenna, a controller, a radio frequency switch and a plurality of antenna tuning circuits, the antenna is electrically connected with the plurality of antenna tuning circuits, the plurality of antenna tuning circuits are electrically connected with the radio frequency switch, the radio frequency switch is electrically connected with the controller, the resonance frequency points of the antenna tuning circuits are different, the different states at least comprise a first state and a second state, the first state is a state that the host body is overlapped on the support frame, and the second state is a state that the host body is rotated upwards relative to the support frame to form a certain angle; the method comprises the following steps:
when the intelligent watch is worn on the hand of a user, the controller sends a switching signal to the radio frequency switch according to the current state of the host body;
the radio frequency switch switches the antenna to be connected to the antenna tuning circuit corresponding to the current state according to the switching signal.
10. The method of claim 9, wherein the smart host further comprises a sensor electrically connected to the controller, the method further comprising, prior to the controller sending a switching signal to the radio frequency switch according to the different state of the host body:
the sensor detects the current state of the host body and sends the current state to the controller.
11. The method of claim 10, wherein the sensor detects a current state of the host body and sends to the controller, comprising:
the sensor measures the position of the host body relative to the supporting frame and records measured data;
determining the current state of the host body from preset states according to the measurement data;
generating a state signal and sending the state signal to the controller, wherein the state signal is a signal carrying current state information of the host body.
12. The method of claim 11, wherein the controller sending a switching signal to the radio frequency switch based on the current state of the host body comprises:
the controller receives the state signal, analyzes the state signal and determines the antenna tuning circuit corresponding to the state signal from preset antenna tuning circuits;
and generating a switching signal and sending the switching signal to the radio frequency switching switch, wherein the switching signal is a signal carrying the antenna tuning circuit information corresponding to the state signal.
13. The method according to any one of claims 9 to 12, wherein the radio frequency switch switches the antenna connection to the antenna tuning circuit corresponding to the current state according to the switching signal, comprising:
prompting an antenna tuning circuit corresponding to the current state on a display screen of the host body to enable a user to select;
and controlling the radio frequency change-over switch to switch the antenna to be connected to an antenna tuning circuit corresponding to the current state according to the result selected by the user.
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| CN112788177A (en) * | 2020-12-31 | 2021-05-11 | 读书郎教育科技有限公司 | Screen capturing system and method for telephone watch |
| CN113050862A (en) * | 2020-12-31 | 2021-06-29 | 读书郎教育科技有限公司 | System and method for switching dial plates of telephone watch |
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