Near field acoustic control switch

Abstract

The utility model discloses a kind of near-field acoustic control switches, including induction plate, microphone and controller, induction plate is close-range non-contact sensing panel, induction plate is electrically connected with controller, induction plate is used to detect the position signal of user's hand in the front of induction plate and output to controller;Microphone is set to the back of induction plate, microphone is electrically connected with controller, microphone is used to collect the sound signal of user and output to controller;The output end of controller is connected with electric equipment.The near-field acoustic control switch of the utility model realizes accurate trigger by the double sensing mode of hand position and sound, effectively avoids the false trigger problem of single sensing mode.

Description

Technical Field

[0001] This utility model relates to the field of switch technology, and in particular to a near-field sound-controlled switch. Background Technology

[0002] Currently, motion-sensor switches are widely used in lighting control and other fields, providing users with a convenient way to operate them. However, most existing motion-sensor switches use a single sensing method, such as touch sensing or infrared sensing. These switches are prone to accidental activation during use. When an object in the environment unintentionally approaches the sensing area, or when a user passes through the sensing range without intentional operation, the motion-sensor switch may be accidentally triggered, causing the controlled equipment (such as lighting fixtures) to unnecessarily turn on or off. This not only wastes energy but also inconveniences users and affects the user experience. For example, accidental activation is likely when users are active in a bedroom; visitors unintentionally passing by in an exhibition hall may accidentally trigger the lighting system; the movement of instruments in an operating room may cause accidental activation, and contact operation poses a risk of infection; in a kitchen environment, users with oily hands may find it inconvenient to operate contact switches.

[0003] Furthermore, the security and accuracy of single-sensor methods need improvement, failing to meet users' demands for reliability and intelligence inductive switches.

[0004] Therefore, there is an urgent need to develop a new type of inductive switch. Utility Model Content

[0005] In view of this, the present invention provides a near-field voice-controlled switch to solve the problem that inductive switches in the prior art are prone to accidental activation, resulting in unnecessary opening or closing.

[0006] To achieve one, some, or all of the above objectives or other objectives, this utility model provides a near-field voice-controlled switch, including a sensor panel, a microphone, and a controller. The sensor panel is a near-field non-contact sensing panel, electrically connected to the controller. The sensor panel is used to detect the position signal of the user's hand in front of the sensor panel and output it to the controller. The microphone is disposed on the back of the sensor panel and electrically connected to the controller. The microphone is used to collect the user's voice signal and output it to the controller. The output terminal of the controller is connected to the electrical device.

[0007] Furthermore, the sensing plate includes a transmitting electrode and a plurality of receiving electrodes, the receiving electrodes being distributed around the perimeter of the sensing plate, and the transmitting electrode being disposed in the central region of the sensing plate.

[0008] Furthermore, the sensing plate is rectangular, and there are four receiving electrodes, which are respectively disposed on the four sides of the rectangle.

[0009] Furthermore, the sensing plate is rectangular, and there are two receiving electrodes, which are respectively disposed on the left and right sides of the rectangle.

[0010] Furthermore, the sensing plate is rectangular, and its width is greater than its length.

[0011] Furthermore, it also includes a frame housing and a panel, the panel and the frame housing enclose a receiving space, the sensor plate is embedded in the receiving space, and the bottom of the frame housing is provided with multiple mounting holes for fixing the near-field voice control switch to the mounting surface.

[0012] Furthermore, the microphone is fixed to the inside of the frame housing by a bracket, and the frame housing is provided with a honeycomb-shaped pickup hole at the position corresponding to the microphone.

[0013] Furthermore, an open indicator is provided on the left side of the frame housing, and a closed indicator is provided on the right side of the frame housing; or a closed indicator is provided on the left side of the frame housing, and an open indicator is provided on the right side of the frame housing.

[0014] Furthermore, the sensing plate is an infrared sensing plate.

[0015] Furthermore, the sensing plate is a millimeter-wave radar sensing plate or an ultrasonic sensing plate.

[0016] Implementing the embodiments of this utility model will have the following beneficial effects:

[0017] This invention's near-field voice-activated switch achieves precise triggering through dual sensing (hand position + sound), effectively avoiding the false triggering problem of single-sensor methods. The switch will not activate if the user merely waves their hand without snapping their fingers; nor will it activate if there is only sound in the environment but no hand is within the effective area. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] in:

[0020] Figure 1 This is a schematic diagram of the frame structure of a near-field sound-controlled switch in one embodiment;

[0021] Figure 2 This is a schematic diagram illustrating an application scenario of a near-field voice-controlled switch in one embodiment.

[0022] Figure 3 This is a schematic diagram of the structural distribution of the sensor plate in one embodiment;

[0023] Figure 4 This is a schematic diagram of the structural distribution of the sensor plate in one embodiment;

[0024] Figure 5 This is a schematic diagram of the structural distribution of the sensor plate in one embodiment;

[0025] Figure 6 This is an axial view of the external structure of a near-field sound-controlled switch in one embodiment;

[0026] Figure 7 This is an exploded view of the near-field acoustic switch in one embodiment;

[0027] Figure 8 This is a rear view schematic diagram of the near-field voice-controlled switch in one embodiment;

[0028] Figure 9 This is a schematic diagram of the near-field sound-controlled switch from a bottom view in one embodiment;

[0029] Figure 10 This is a schematic diagram of the structure of a near-field sound-controlled switch in one embodiment;

[0030] Figure 11 This is a schematic diagram of the structure of a near-field sound-controlled switch in one embodiment.

[0031] Explanation of the attached drawing numbers:

[0032] 100: Sensor plate; 101: Transmitting electrode; 102: Receiving electrode; 103: Infrared transmitting array; 104: Infrared receiving array; 200: Microphone; 300: Controller; 400: Frame housing; 410: Panel; 401: Sound pickup hole. Detailed Implementation

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this invention are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or accompanying drawings of this invention are used to distinguish different objects, not to describe a particular order.

[0034] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0035] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0036] Reference Figure 1 and Figure 2 This utility model provides an embodiment of a near-field voice-controlled switch, including a sensor panel 100, a microphone 200, and a controller 300. The sensor panel 100 is a near-field non-contact sensing panel, electrically connected to the controller 300. The sensor panel 100 detects the position signal of the user's hand in front of the sensor panel and outputs it to the controller 300. The microphone 200 is disposed on the back of the sensor panel 100. Figure 8 As shown, the microphone 200 is positioned on the front of the sensor panel, as shown in the image. Figure 10 , Figure 11 As shown, the microphone 200 is electrically connected to the controller 300. The microphone 200 is used to collect the user's voice signal and output it to the controller 300. The output terminal of the controller 300 is connected to the electrical equipment.

[0037] In this embodiment, the main structure of the near-field sound-controlled switch is as follows: Figure 1 As shown, the near-field voice-activated switch includes a sensor plate 100, a microphone 200, and a controller 300.

[0038] In a near-field voice-controlled switch, "near-field" refers to the sensor panel 100 employing a short-range, non-contact sensing panel with a sensing distance of 10cm or less. For example, it operates based on the principle of electric field sensing, generating an electric field in a specific area. When an object (such as a hand) enters the sensing range, its movement alters the electric field, allowing it to be detected and its position in front of the sensor panel, such as in the left or right area. For instance, a Microchip Technology-manufactured switch could be used. The sensor panel 100 is connected to the controller 300 and outputs a signal indicating the position of the user's hand in front of the sensor panel.

[0039] The microphone 200 is fixed to the back of the sensor plate 100 by a bracket and connected to the ADC input of the controller 300 via an analog audio cable. The microphone 200 can be selected from commercially available microphones, and this invention does not impose any special limitations on it.

[0040] The controller 300 receives position signals from the sensor panel 100 and sound signals from the microphone 200. Its output is connected to electrical equipment, such as a lamp, for controlling the lamp's on / off state. For example, a commercially available PIC18F46K22 microcontroller can be used.

[0041] The detection space in front of the sensor panel 100 is divided into a left region and a right region. Specifically, the left region is the area within a straight-line distance of less than 10cm from the sensor panel 100 and located to the left of the center of the sensor panel; the right region is the area within a straight-line distance of less than 10cm from the sensor panel 100 and located to the right of the center of the sensor panel. (Refer to...) Figure 2 When the user's hand is in the left area, and a sound signal such as a finger snap is emitted, the control switch is turned on, and connected electrical equipment, such as a light fixture, turns on. When the user's hand is in the right area, and a sound signal such as a finger snap is emitted, the control switch is turned off, and connected electrical equipment, such as a light fixture, turns off. When the user's hand is in other areas, no action is triggered. When the user's hand is in either the left or right area but no sound signal is emitted, no action is triggered.

[0042] The near-field voice-activated switch in this embodiment achieves precise triggering through dual sensing (hand position + sound), effectively avoiding the false triggering problem of single sensing methods. When the user only waves their hand without snapping their fingers, the switch will not activate; when there is only sound in the environment but no hand is in the effective area, the switch will also not activate.

[0043] The near-field voice-controlled switch of this embodiment has a wide range of applications. For example, it can be installed on a bedroom wall, where users can wave their hand and snap their fingers on the left to turn on the light and operate the switch on the right to turn it off, avoiding accidental touches during activities; it can be installed at the entrance of an exhibition hall, where visitors can snap their fingers in a designated area to control the lighting system, enhancing the interactive experience; in sterile environments such as operating rooms, doctors can control the device switch non-contactly, reducing the risk of cross-infection; when users are cooking and their hands are greasy or wet, they can simply wave their hand and snap their fingers on the left side of the range hood control panel to turn on the lighting and operate the switch on the right to turn it off, avoiding the problem of buttons sticking or being accidentally touched due to grease on traditional touch switches, while also preventing hand grime from contaminating the device panel.

[0044] Reference Figures 3-5In one specific embodiment, the sensing plate 100 includes a transmitting electrode 101 and a plurality of receiving electrodes 102. The receiving electrodes 102 are distributed around the perimeter of the sensing plate 100, and the transmitting electrodes 101 are located in the central region of the sensing plate 100. Specifically, the sensing plate 100 is a commercially available near-field non-contact sensing plate. The receiving electrodes 102 are multiple elongated copper foils arranged along the edge of the rectangular sensing plate 100. The transmitting electrodes 101 are square copper foils located in the central region of the sensing plate 100, and the transmitting electrodes 101 are insulated from the receiving electrodes 102. The receiving electrodes 102 and the transmitting electrodes 101 are connected to a controller via wires.

[0045] Reference Figure 3 In one specific embodiment, the sensing plate 100 is rectangular, and there are four receiving electrodes 102, which are respectively disposed on the four sides of the rectangle. The four receiving electrodes 102 are arranged along the four sides of the rectangle, and the emitting electrode 101 is a square copper foil located in the central area of ​​the sensing plate 100.

[0046] When a person's hand approaches the sensor plate, it disturbs the original electric field distribution of the sensor plate, causing a change in the signal intensity received by each receiving electrode 102. By comparing the differences in signal intensity among the four receiving electrodes 102, the position coordinates of the hand are calculated. The specific calculation algorithm is existing technology and will not be described in detail here.

[0047] Reference Figure 4 In one specific embodiment, the sensing plate 100 is rectangular, and there are two receiving electrodes 102, respectively disposed on the left and right sides of the rectangle. For the application scenarios of this utility model, two receiving electrodes 102 are sufficient to identify the left and right areas, meeting application requirements and reducing the cost of near-field voice-controlled switches.

[0048] Reference Figure 5 In one specific embodiment, the sensing plate 100 is rectangular, with its width greater than its length. The sensing plate 100 adopts a horizontal rectangular design, which makes the distinction between the left and right areas of the hand more obvious, avoiding user misoperation and reducing the probability of misjudgment by the controller 300.

[0049] Reference Figure 6 and Figure 7 In one specific embodiment, the device further includes a frame housing 400 and a panel 410. The panel 410 and the frame housing 400 enclose a receiving space, and the sensing plate 100 is embedded in the receiving space. The bottom of the frame housing 400 is provided with multiple mounting holes (not shown in the figure) for fixing the near-field voice-activated switch to the mounting surface. Exemplarily, the frame housing 400 is integrally molded from ABS plastic and has four M4 mounting holes at the bottom to be compatible with mainstream switch panel mounting slots on the market.

[0050] In one specific embodiment, refer to Figure 8 and Figure 9 The microphone 200 is fixed to the inside of the frame housing 400 by a bracket, and the frame housing 400 is provided with a honeycomb-shaped pickup hole 401 at the position corresponding to the microphone 200, which effectively collects sound signals while preventing dust, insects and other objects from entering.

[0051] In one specific embodiment, refer to Figure 10 and Figure 11 The microphones 200 include multiple microphones, such as four, which are respectively arranged around the sensor plate 100 and electrically connected to the controller 300. In actual use, a conventional panel (not shown in the figure) is provided on the sensor plate 100 to shield and protect the internal electronic components.

[0052] In one specific embodiment, an "ON" indicator is provided on the left side of the frame housing 400, and a "OFF" indicator is provided on the right side; or a "OFF" indicator is provided on the left side of the frame housing 400, and an "ON" indicator is provided on the right side. This indicator design makes user operation more intuitive and reduces the risk of accidental operation. For example, the "ON" indicator is a green "ON" icon, and the "OFF" indicator is a red "OFF" icon.

[0053] The sound in this embodiment is a snapping sound from the user's fingers. This invention achieves highly reliable contactless interaction by combining the snapping sound with hand position detection, making it suitable for various scenarios with high requirements for hygiene and convenience.

[0054] In one specific embodiment, refer to Figure 11 The sensing panel 100 is an infrared sensing panel. The infrared sensing panel adopts a commercially available infrared sensing panel in the prior art, including an infrared emitting array 103 and an infrared receiving array 104, so as to detect the position signal of the hand. Combined with the microphone 200 in the aforementioned embodiment, it realizes dual sensing triggering of the switch, effectively avoiding the false triggering problem of single sensing method.

[0055] In one specific embodiment, the sensing plate 100 is a millimeter-wave radar sensing plate. The millimeter-wave radar sensing plate adopts commercially available millimeter-wave sensing plates or commercially available ultrasonic sensing plates in the prior art. It identifies the user's hand position signal through radar or ultrasound, and then combines it with the microphone 200 in the aforementioned embodiment to achieve dual sensing triggering of the switch, effectively avoiding the false triggering problem of a single sensing method.

[0056] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A near-field voice-activated switch, characterized in that, The device includes a sensor panel, a microphone, and a controller. The sensor panel is a near-field, non-contact sensing panel and is electrically connected to the controller. The sensor panel is used to detect the position signal of the user's hand in front of the sensor panel and output it to the controller. The microphone is electrically connected to the controller and is used to collect the user's voice signal and output it to the controller. The output terminal of the controller is connected to an electrical device.

2. The near-field voice-controlled switch as described in claim 1, characterized in that, The sensing plate includes a transmitting electrode and several receiving electrodes. The receiving electrodes are distributed around the perimeter of the sensing plate, and the transmitting electrodes are located in the center of the sensing plate.

3. The near-field voice-controlled switch as described in claim 2, characterized in that, The sensing plate is rectangular, and there are four receiving electrodes, which are respectively disposed on the four sides of the rectangle.

4. The near-field voice-controlled switch as described in claim 2, characterized in that, The sensing plate is rectangular, and there are two receiving electrodes, which are respectively located on the left and right sides of the rectangle.

5. The near-field acoustic switch as described in claim 1, characterized in that, The sensing plate is rectangular, and its width is greater than its length.

6. The near-field acoustic switch according to claim 1, characterized in that, It also includes a frame housing and a panel, the panel and the frame housing enclose a receiving space, the sensor plate is embedded in the receiving space, and the bottom of the frame housing is provided with multiple mounting holes for fixing the near-field sound control switch to the mounting surface.

7. The near-field acoustic switch according to claim 6, characterized in that, The microphone is fixed to the inside of the frame housing by a bracket, and the frame housing is provided with a honeycomb-shaped pickup hole at the position corresponding to the microphone.

8. The near-field acoustic switch according to claim 6, characterized in that, An open indicator is provided on the left side of the frame housing, and a closed indicator is provided on the right side of the frame housing; or a closed indicator is provided on the left side of the frame housing, and an open indicator is provided on the right side of the frame housing.

9. The near-field acoustic switch as described in claim 1, characterized in that, The sensing panel is an infrared sensing panel.

10. The near-field acoustic switch as described in claim 1, characterized in that, The sensing plate is a millimeter-wave radar sensing plate or an ultrasonic sensing plate.

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