Air mouse module and handheld device

Abstract

The utility model relates to the technical field of remote control, and discloses an air mouse module and handheld equipment, which can improve the sensitivity of a six-axis sensor and reduce relative errors. The module comprises a slot antenna and a printed circuit board, and an ultra-wideband module, a six-axis sensor and a processing module are integrated on the printed circuit board. The top surface of the slot antenna is connected to the printed circuit board, and the slot antenna is configured to convert a radio frequency signal from the ultra-wideband module into an electromagnetic wave, transmit the electromagnetic wave to the outside, receive an external electromagnetic wave signal, convert the external electromagnetic wave signal into a radio frequency signal, and transmit the radio frequency signal to the ultra-wideband module; the ultra-wideband module converts the radio frequency signal into a first electric signal, the six-axis sensor is configured to obtain acceleration data and angular velocity data of equipment and then output a second electric signal, and the processing module is configured to process the electric signal.

Description

Technical Field

[0001] The present application relates to the field of remote control technology, and in particular to an air mouse module and a handheld device. Background Art

[0002] With the popularity of smart home and entertainment systems, modern consumers have higher requirements for the interaction methods of smart TVs and other media devices. Despite the rapid technological advancement, the design of traditional remote controls still has obvious limitations and has failed to keep pace with user needs. Traditional remote controls rely on simple button operations, which are clumsy and insufficient when operating complex applications or performing efficient navigation, especially in scenarios that require quick browsing of content, text input, or direct interaction with applications.

[0003] Current remote controls typically use infrared or radio frequency technologies, which, while reliable for simple control tasks, often fail to meet the requirements of modern smart devices in terms of response speed, operational accuracy, and user-friendliness. For example, infrared remote controls require a straight line of sight to the device, which limits the user's freedom of movement and the flexibility of device layout. In addition, the complexity of multi-functional smart TVs and other smart home devices requires remote controls to support more advanced features, such as voice control, air mouse operation, etc., which are difficult to achieve with traditional remote controls.

[0004] Although some existing air mice are equipped with six-axis sensors to sense user gestures and other operations, their six-axis sensors are all set on the main printed circuit board of the air mouse, basically located in the center of the air mouse. As a result, the six-axis sensor has low sensitivity and a relatively large error. Users can also clearly feel that the air mouse does not follow their hands when operating. Summary of the invention

[0005] The purpose of the present application is to provide an air mouse module and a handheld device, which can improve the sensitivity of a six-axis sensor and reduce the relative error.

[0006] The present application discloses an air mouse module, comprising: a slot antenna 1 and a printed circuit board 2, wherein the printed circuit board 2 is integrated with an ultra-wideband module, a six-axis sensor and a processing module;

[0007] The top surface of the slot antenna 1 is connected to the printed circuit board 2, and the slot antenna 1 is configured to convert the radio frequency signal from the ultra-wideband module into electromagnetic waves and transmit them to the outside, and receive external electromagnetic wave signals to convert them into radio frequency signals and transmit them to the ultra-wideband module, and the ultra-wideband module converts the radio frequency signal into a first electrical signal;

[0008] The six-axis sensor is configured to output a second electrical signal after obtaining acceleration data and angular velocity data of the device. The ultra-wideband module and the six-axis sensor are respectively connected to the processing module, and the processing module is configured to process the electrical signal.

[0009] In a preferred example, the slot antenna 1 includes a dielectric substrate 3, a plurality of bottom radiation units 4, a plurality of side radiation units 5, a first metal layer and a plurality of dielectric ridges 6;

[0010] The dielectric ridge 6 vertically protrudes upward from the top surface of the dielectric substrate 3, and the top surface of the dielectric substrate 3 is plated with the first metal layer;

[0011] The plurality of bottom radiation units 4 are plated on the bottom surface of the dielectric substrate 3, each of the bottom radiation units 4 is provided with a slot 7 and a feeding structure hole 8, and the bottom radiation unit 4 is connected to the first metal layer through the second metal layer on the inner wall of the slot 7;

[0012] The plurality of side radiation units 5 are plated on the outer side of the dielectric ridge 6, and the side radiation units 5 are connected to the first metal layer through a third metal layer plated on the upper surface of the dielectric ridge 6 and the inner wall of the dielectric ridge 6;

[0013] The number of the bottom radiation units 4 and the number of the side radiation units 5 are equal, and the positions of each bottom radiation unit 4 and each side radiation unit 5 correspond to each other.

[0014] In a preferred example, an infrared transmitting module 9 is further integrated on the printed circuit board 2 . The infrared transmitting module 9 is configured to send infrared signals to the outside world. The plane position of the infrared transmitting module 9 is located in any one of the slots 7 .

[0015] In a preferred embodiment, the printed circuit board 2 is connected to the bottom surface of the dielectric substrate 3 through a feeding unit, and the feeding unit includes a plurality of feeding probes 10 and a plurality of coplanar waveguide feeding lines 11;

[0016] The first ends of the plurality of feeding probes 10 are respectively connected to the feeding structure holes 8 , and the second ends of the feeding probes 10 are respectively connected to the coplanar waveguide feed lines 11 , which are all integrated on the printed circuit board 2 .

[0017] In a preferred example, a radiation gap 12 is formed between the bottom radiation unit 4 and the side radiation unit 5 , and the radiation gap 12 is arranged along the top side edge of the dielectric substrate 3 in the length direction.

[0018] In a preferred example, the geometric center of the bottom radiation unit 4 is an isosceles triangle on the bottom surface of the dielectric substrate 3 .

[0019] In a preferred example, the dielectric ridges 6 are distributed in an isosceles triangle shape on the top surface of the dielectric substrate 3 , and the outer side surface of the dielectric ridges 6 is flush with the outer side surface of the dielectric substrate 3 .

[0020] In a preferred example, two side edges of the printed circuit board 2 in the length direction are provided with a plurality of mounting openings, and the mounting openings correspond to the dielectric ridges 6 respectively.

[0021] In a preferred example, the feeding probe 10 is located between the slot 7 and the radiation slot 12 , and the feeding probe 10 is close to the slot 7 .

[0022] The present application also discloses a handheld device, comprising the air mouse module as described above.

[0023] In the implementation manner of the present application, the air mouse module provides accurate monitoring of the movement of the handheld device by integrating a six-axis sensor to realize air mouse operation, and because the entire air mouse module is located on the top of the handheld device, the six-axis sensor integrated on the printed circuit board is also located on the top of the handheld device, which can maximize its movement trajectory and achieve the technical effect of improving sensitivity and reducing relative error. In addition, the slot antenna is equipped with an ultra-wideband module to effectively convert radio frequency signals into electromagnetic waves, which not only improves the signal transmission efficiency, but also ensures the signal reception quality. The air mouse module successfully overcomes the key shortcomings of traditional remote controls, provides modern smart device users with a more efficient and intuitive control solution, and improves the user experience.

[0024] Furthermore, by configuring the bottom and side radiation units on the dielectric substrate at the same time and supporting them through multiple dielectric ridge reinforcement structures, the omnidirectional radiation capability of the antenna is effectively improved. The design of the radiation slot optimizes the radiation characteristics of the antenna along the length direction of the dielectric substrate and improves the performance of the antenna.

[0025] Furthermore, by placing the infrared transmitter module in the slot, the problem of the infrared transmitter module being blocked in traditional remote control devices is cleverly solved. This layout ensures that the infrared transmitter module is completely unblocked, so that signals can be sent to the outside world without obstacles, which improves the response speed of the device.

[0026] Furthermore, by providing a dielectric ridge protruding from the top surface of the dielectric substrate, the stability of the structure can be further enhanced, and the centralized transmission of the signal can be facilitated. The third metal layer and the second metal layer are respectively connected to the first metal layer, which can ensure the consistency of the electrical performance of the entire antenna system. The interconnection of the metal layers ensures the efficiency and uniformity of signal transmission, thereby improving the overall performance of the antenna.

[0027] Furthermore, by integrating multiple feeding probes and coplanar waveguide feed lines on a printed circuit board, not only is the circuit design simplified, but also the signal transmission efficiency and the reliability of the overall circuit are improved.

[0028] A large number of technical features are recorded in the specification of this application, which are distributed in various technical solutions. If all possible combinations of technical features of this application (i.e., technical solutions) are to be listed, the specification will be too long. In order to avoid this problem, the various technical features disclosed in the above-mentioned invention content of this application, the various technical features disclosed in the various embodiments and examples below, and the various technical features disclosed in the accompanying drawings can be freely combined with each other to form various new technical solutions (these technical solutions are all deemed to have been recorded in this specification), unless the combination of such technical features is technically infeasible. For example, in one example, feature A+B+C is disclosed, and in another example, feature A+B+D+E is disclosed, and features C and D are equivalent technical means that play the same role. Technically, only one can be used, and it is impossible to use them at the same time. Feature E can be combined with feature C technically. Then, the solution of A+B+C+D should not be deemed to have been recorded because it is technically infeasible, and the solution of A+B+C+E should be deemed to have been recorded. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a schematic structural diagram of an empty mouse module according to an embodiment of the present application;

[0030] Figure 2 is a schematic structural diagram of an empty mouse module according to an embodiment of the present application;

[0031] Figure 3 is a schematic structural diagram of an empty mouse module according to an embodiment of the present application;

[0032] Figure 4 is a side view of an empty mouse module according to one embodiment of the present application;

[0033] Figure 5 is a schematic diagram of return loss and isolation of an air mouse module at different frequencies according to an embodiment of the present application;

[0034] Figure 6 It is a simulation result diagram of the air mouse module according to one embodiment of the present application.

[0035] Description of reference numerals:

[0036] 1-slot antenna, 2-printed circuit board, 3-dielectric substrate, 4-bottom radiation unit, 5-side radiation unit, 6-dielectric ridge, 7-slot, 8-feeding structure hole, 9-infrared transmitting module, 10-feeding probe, 11-coplanar waveguide feed line, 12-radiation slot. DETAILED DESCRIPTION

[0037] In the following description, many technical details are provided to help readers better understand the present application. However, those skilled in the art can understand that the technical solution claimed in the present application can be implemented even without these technical details and various changes and modifications based on the following embodiments.

[0038] the term

[0039] As used herein, "top surface" refers to the upper interface of the antenna or related components shown in the accompanying drawings, and "bottom surface" refers to the lower interface relative to the "top surface" shown in the same drawings. It should be emphasized that the use of these terms is only based on the perspective and display method in the drawings and is relative. That is, the definitions of "top surface" and "bottom surface" do not represent any absolute physical direction or fixed orientation, but are relatively defined based on the layout of the drawings. This way of expression is intended to help understand and explain the positional relationship of the various components in the invention, and to ensure that the specific positions and interactions of the various parts can be accurately identified when reading and parsing the patent content.

[0040] As used herein, “ultra-wideband module” is also referred to as UWB (Ultra-Wide Band) module, and refers to a wireless communication component that can use an extremely wide frequency band (usually between 3.1 GHz and 10.6 GHz) to send and receive data.

[0041] As used in this article, "six-axis sensor" is also known as inertial measurement unit, micro-electromechanical system sensor, motion tracking sensor, etc., and refers to a device that integrates a three-axis accelerometer and a three-axis gyroscope to simultaneously measure and report the acceleration and rotational speed of the device in space.

[0042] In order to make the objectives, technical solutions and advantages of the present application more clear, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0043] The first embodiment of the present application relates to an air mouse module, and its structure diagram is as follows Figure 1-4 As shown, it includes: a slot antenna 1 and a printed circuit board 2, on which an ultra-wideband module, a six-axis sensor and a processing module are integrated.

[0044] The top surface of the slot antenna 1 is connected to the printed circuit board 2. The slot antenna 1 is configured to convert the radio frequency signal from the ultra-wideband module into an electromagnetic wave and transmit it to the outside, and receive the external electromagnetic wave signal to convert it into a radio frequency signal and transmit it to the ultra-wideband module. The ultra-wideband module converts the radio frequency signal into a first electrical signal. The six-axis sensor is configured to obtain the acceleration data and angular velocity data of the device and then output a second electrical signal. The ultra-wideband module and the six-axis sensor are respectively connected to the processing module, and the processing module is configured to process the electrical signal.

[0045] It should be noted that the processing module processes electrical signals in the prior art and will not be described in detail here. The innovation of this application is to integrate the six-axis sensor and the ultra-wideband module (and the infrared emission module) on the top of the handheld device to improve the sensitivity of the six-axis sensor, and does not involve any software / method innovation.

[0046] In an optional embodiment, the slot antenna 1 includes a dielectric substrate 3, a plurality of bottom radiating units 4, a plurality of side radiating units 5, a first metal layer and a plurality of dielectric ridges 6. The dielectric ridge 6 vertically protrudes upward from the top surface of the dielectric substrate 3, the top surface of the dielectric substrate 3 is plated with a first metal layer, the plurality of bottom radiating units 4 are plated on the bottom surface of the dielectric substrate 3, the bottom radiating units 4 are provided with slots 7 and feeding structure holes 8, the bottom radiating units 4 are connected to the first metal layer through the second metal layer on the inner wall of the slot 7, the plurality of side radiating units 5 are plated on the outer side of the dielectric ridge 6, the side radiating units 5 are connected to the first metal layer through the third metal layer plated on the upper surface of the dielectric ridge 6 and the inner wall of the dielectric ridge 6, the number of the bottom radiating units 4 and the side radiating units 5 are equal, and the positions of each bottom radiating unit 4 and each side radiating unit 5 correspond.

[0047] In an optional embodiment, the printed circuit board 2 is also integrated with an infrared transmitting module 9, which is configured to send infrared signals to the outside world, and the plane position of the infrared transmitting module 9 is located in any slot 7. Optionally, the infrared transmitting module 9 may include but is not limited to: a basic infrared transmitting module (including an infrared light emitting diode and a basic driving circuit, which can generate non-modulated continuous or pulsed infrared light), a modulated infrared transmitting module (with a built-in modulator, which can modulate the input electrical signal), a high-power infrared transmitting module (including an enhanced light source, which can provide a longer transmission distance and a stronger signal strength), a network communication infrared transmitting module (including a network interface, which can access the network), etc. Figure 1 For example, the slot antenna 1 in the figure is provided with three slots 7. When the slot antenna 1 and the printed circuit board 2 are assembled, the portion of the printed circuit board 2 located in the vertical direction of the slot 7 will be exposed to the air, and the infrared transmitting module 9 is located in this portion.

[0048] In an optional embodiment, the printed circuit board 2 is connected to the bottom surface of the dielectric substrate 3 through a feeding unit, and the feeding unit includes a plurality of feeding probes 10 and a plurality of coplanar waveguide feed lines 11. The first ends of the plurality of feeding probes 10 are respectively connected to the feeding structure holes 8, and the second ends of the feeding probes 10 are respectively connected to the coplanar waveguide feed lines 11, and the coplanar waveguide feed lines 11 are all integrated on the printed circuit board 2.

[0049] In an optional embodiment, a radiation slot 12 is formed between the bottom radiation unit 4 and the side radiation unit 5, and the radiation slot 12 is arranged along the top side edge in the length direction of the dielectric substrate 3. Optionally, the center of the radiation slot 12 is an isosceles triangle on the dielectric substrate 3, and the center of the radiation slot 12 is located on the same horizontal plane. Optionally, two radiation slots 12 are located on the left side of the dielectric substrate 3, and one radiation slot 12 is located on the right side of the dielectric substrate 3. Alternatively, one radiation slot 12 is located on the left side of the dielectric substrate 3, and two radiation slots 12 are located on the right side of the dielectric substrate 3.

[0050] In an optional embodiment, the geometric center of the bottom radiation unit 4 is an isosceles triangle on the bottom surface of the dielectric substrate 3 .

[0051] In an optional embodiment, the dielectric ridges 6 are distributed in an isosceles triangle shape on the top surface of the dielectric substrate 3 , and the outer side surface of the dielectric ridges 6 is flush with the outer side surface of the dielectric substrate 3 .

[0052] In an optional embodiment, two side edges of the printed circuit board 2 in the length direction are provided with a plurality of mounting openings, and the mounting openings correspond to the dielectric ridges 6 respectively.

[0053] In an optional embodiment, the feeding probe 10 is located between the slot 7 and the radiation slot 12 , and the feeding probe 10 is close to the slot 7 .

[0054] In order to better understand the technical solution of the present application, a specific example is provided below for illustration. The details listed in the example are mainly for ease of understanding and are not intended to limit the scope of protection of the present application.

[0055] See also Figure 1-Figure 4The air mouse module provided in the present application includes a slot antenna 1 and a printed circuit board. The slot antenna 1 includes a dielectric substrate 3, a bottom radiating unit 4, a side radiating unit 5, a feeding unit, a dielectric ridge 6 and a slot 7. The slot antenna 1 and the printed circuit board are connected together through the feeding unit. The bottom radiating unit 4 is located on the bottom surface of the dielectric substrate 3. A plurality of (preferably 3) slots 7 are provided on the dielectric substrate 3. The depth of the slot 7 is equal to the thickness of the dielectric substrate 3. The inner wall of the slot 7 is metallized, so that the bottom radiating surface is connected to the first metal layer located on the top surface of the dielectric substrate 3. The slot 7 is preferably a rectangular slot, which is distributed along the length direction of the antenna dielectric substrate 3. The dielectric ridge 6 is arranged on the top surface of the antenna dielectric substrate 3 and protrudes upward. The outer side of the dielectric ridge 6 is the side radiating unit 5. The inner side and the top of the dielectric ridge 6 are covered with a third metal layer so that the side radiating unit 5 is connected to the first metal layer on the top surface of the dielectric substrate 3. The feeding unit includes a feeding probe 10 and a coplanar waveguide feeder 11. The bottom radiation surface is connected to the printed circuit board 2 through the probe. The coplanar waveguide feeder 11 is integrated on the printed circuit board 2. The first end of the coplanar waveguide feeder 11 is connected to the feeding probe 10, and the second end of the coplanar waveguide feeder 11 is connected to the processing module. The radiation unit, the dielectric ridge 6, and the probe are distributed in an isosceles triangle. The printed circuit board 2 is a special-shaped structure with rectangular mounting openings on both sides in the length direction to facilitate connection with the dielectric ridge 6 of the antenna.

[0056] The working process of the air mouse module is introduced below: the coplanar waveguide feeder 11 port of the printed circuit board 2 receives the signal input by the ultra-wideband module, transmits it to the bottom radiation unit through the feeding probe 10, and then transmits it to the outside world through the radiation slot 12. The ultra-wideband module can also receive the electromagnetic waves of the slot antenna 1 and convert them into the first electrical signal and transmit it to the processing module for data processing (including but not limited to signal demodulation, data analysis, filtering and amplification, etc.). When the six-axis sensor is working, it obtains the acceleration and angular velocity data of the handheld device, detects the movement, tilt, and speed and direction of the handheld device rotating around the axis, and thus obtains the second electrical signal. The second electrical signal is transmitted to the processing module and converted into a radio frequency signal and then sent to the slot antenna 1. After being converted into electromagnetic waves by the slot antenna 1, it is radiated to other devices for control.

[0057] The air mouse module of the present application improves the recognition accuracy of position and posture by combining the high-precision spatial positioning capability of the ultra-wideband module and the high recognition of object posture of the six-axis sensor, and has obvious spatial perception advantages. This smooth operating experience greatly enhances user interaction and opens up more possibilities for more types of terminal applications in the future.

[0058] Each port of the air mouse module of this application has good return loss, and the ports have high isolation. Please refer to Figure 5 The average passband gain is about 2dBi, which has good application value. Figure 6The simulation result diagram of the gain of each port (port 1, 2, 3) is shown.

[0059] A second embodiment of the present application relates to a handheld device, which includes an air mouse module as described in any one of the above.

[0060] The second embodiment is a product embodiment including the first embodiment, and the technical details in the first embodiment can be applied to the second embodiment.

[0061] It should be noted that in the application documents of this patent, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one" do not exclude the existence of other identical elements in the process, method, article or device including the elements. In the application documents of this patent, if it is mentioned that an action is performed according to an element, it means that the action is performed at least according to the element, which includes two situations: performing the action only according to the element, and performing the action according to the element and other elements. Expressions such as multiple, multiple, and multiple include 2, 2 times, 2 kinds, and more than 2, more than 2 times, and more than 2 kinds.

[0062] All documents mentioned in this application are considered to be included in the disclosure of this application as a whole, so that they can be used as the basis for modification when necessary. In addition, it should be understood that after reading the above disclosure of this application, those skilled in the art can make various changes or modifications to this application, and these equivalent forms also fall within the scope of protection claimed in this application.

Claims

1. An air mouse module, characterized in that: include: A slot antenna (1) and a printed circuit board (2), wherein an ultra-wideband module, a six-axis sensor and a processing module are integrated on the printed circuit board (2); The top surface of the slot antenna (1) is connected to the printed circuit board (2), and the slot antenna (1) is configured to convert the radio frequency signal from the ultra-wideband module into electromagnetic waves and transmit them to the outside, and receive external electromagnetic wave signals to convert them into radio frequency signals and transmit them to the ultra-wideband module, and the ultra-wideband module converts the radio frequency signal into a first electrical signal; The six-axis sensor is configured to output a second electrical signal after obtaining acceleration data and angular velocity data of the device. The ultra-wideband module and the six-axis sensor are respectively connected to the processing module, and the processing module is configured to process the electrical signal.

2. The air mouse module according to claim 1, characterized in that: The slot antenna (1) comprises a dielectric substrate (3), a plurality of bottom radiation units (4), a plurality of side radiation units (5), a first metal layer and a plurality of dielectric ridges (6); The dielectric ridge (6) vertically protrudes upward from the top surface of the dielectric substrate (3), and the top surface of the dielectric substrate (3) is plated with the first metal layer; The plurality of bottom surface radiation units (4) are plated on the bottom surface of the dielectric substrate (3), the bottom surface radiation units (4) are each provided with a slot (7) and a feeding structure hole (8), and the bottom surface radiation units (4) are connected to the first metal layer via a second metal layer on the inner wall of the slot (7); The plurality of side radiation units (5) are plated on the outer side surface of the dielectric ridge (6), and the side radiation units (5) are connected to the first metal layer via a third metal layer plated on the upper surface of the dielectric ridge (6) and the inner wall of the dielectric ridge (6); The number of the bottom radiation units (4) and the number of the side radiation units (5) are equal, and the position of each bottom radiation unit (4) and each side radiation unit (5) corresponds to each other.

3. The air mouse module according to claim 2, characterized in that: The printed circuit board (2) is also integrated with an infrared emitting module (9), the infrared emitting module (9) being configured to send infrared signals to the outside world, and the plane position of the infrared emitting module (9) is located in any one of the slots (7).

4. The air mouse module according to claim 2, characterized in that: The printed circuit board (2) is connected to the bottom surface of the dielectric substrate (3) via a feeding unit, wherein the feeding unit comprises a plurality of feeding probes (10) and a plurality of coplanar waveguide feeding lines (11); The first ends of the plurality of feeding probes (10) are respectively connected to the feeding structure holes (8), and the second ends of the feeding probes (10) are respectively connected to the coplanar waveguide feed lines (11), and the coplanar waveguide feed lines (11) are all integrated on the printed circuit board (2).

5. The air mouse module according to claim 4, characterized in that: A radiation gap (12) is formed between the bottom radiation unit (4) and the side radiation unit (5), and the radiation gap (12) is arranged along the top side edge of the dielectric substrate (3) in the length direction.

6. The air mouse module according to claim 2, characterized in that: The geometric center of the bottom radiation unit (4) is an isosceles triangle on the bottom surface of the dielectric substrate (3).

7. The air mouse module according to claim 2, characterized in that: The dielectric ridges (6) are distributed in an isosceles triangle shape on the top surface of the dielectric substrate (3), and the outer side surface of the dielectric ridges (6) is flush with the outer side surface of the dielectric substrate (3).

8. The air mouse module according to claim 2, characterized in that: A plurality of mounting openings are provided on both sides of the printed circuit board (2) in the length direction, and the mounting openings correspond to the dielectric ridges (6) respectively.

9. The air mouse module according to claim 5, characterized in that: The feeding probe (10) is located between the slot (7) and the radiation slot (12), and the feeding probe (10) is close to the slot (7).

10. A handheld device, characterized in that: Comprising an empty mouse module as described in any one of claims 1-9.

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