Key brightness adjusting device

Abstract

The utility model relates to a key brightness adjusting device, which comprises a power supply module, a central processing module, an optocoupler module, a button module and a grounding module, the power supply module is electrically connected to the button module and used for supplying power to the button module; the central processing module is electrically connected to the button module and the optocoupler module and used for responding to control parameters set by a user and issuing control information corresponding to the control parameters to the optocoupler module; the optocoupler module is electrically connected to the grounding module and the button module and used for responding to the received control information and controlling connection and disconnection between the button module and the grounding module; and the button module is used for controlling the brightness of the key based on the connection and disconnection between the button module and the grounding module. By adopting the device, the problem that resources are wasted due to the fact that replacement of turn-on or turn-off of low light cannot be automatically completed or two different keys need to be designed to replace the brightness of the keys in the prior art can be solved.

Description

Technical Field

[0001] The present application relates to the technical field of key control, and in particular to a key brightness adjustment device. Background Art

[0002] With the development of electronic technology, elevators are gradually being widely used, and the ways in which users interact with elevators are becoming increasingly diverse. In the prior art, elevator buttons with a dim light function can be used to enhance the user experience when using an elevator. However, the existing methods for adjusting the brightness of elevator buttons with a dim light function cannot automatically switch the dim light on or off, or require the design of two different buttons to switch the button brightness, resulting in a waste of resources.

[0003] There is no effective solution to the problem in the related art that the dim light cannot be switched on or off automatically, or two different buttons need to be designed to switch the button brightness, resulting in a waste of resources. Utility Model Content

[0004] The present application provides a key brightness adjustment device to solve the problem in the related art that the device cannot automatically complete the switching of the dim light on or off, or needs to design two different keys to switch the key brightness, resulting in a waste of resources.

[0005] In this embodiment, a key brightness adjustment device is provided, the device comprising: a power module, a central processing module, an optical coupling module, a button module and a grounding module;

[0006] The power module is electrically connected to the button module and is used to supply power to the button module;

[0007] The central processing module is electrically connected to the button module and the optical coupling module, and is used to respond to the control parameters set by the user and send control information corresponding to the control parameters to the optical coupling module;

[0008] The optical coupling module is electrically connected to the grounding module and the button module, and is used to control the conduction and disconnection between the button module and the grounding module in response to the received control information;

[0009] The button module is used to control the button brightness based on the conduction and disconnection between the button module and the grounding module.

[0010] In some embodiments, the button module includes a light group unit, a load unit and a key unit; the light group unit is connected in series between the power module and the load unit, and is used to provide brightness for the key; the load unit is connected in series between the light group unit and the optocoupler module, and is used to limit the current of the light group unit; the key unit is connected in series between the power module and the central processing module, and is used to generate the pressing status information of the key based on the current state of the key, and send the pressing status information of the key to the central processing module.

[0011] In some embodiments, the optocoupler module includes a first optocoupler and a second optocoupler; the first optocoupler and the second optocoupler include a transmitting end and a receiving end, respectively; the receiving end of the first optocoupler is connected in series between the button module and the grounding module; the receiving end of the second optocoupler is connected in series between the button module and the grounding module; the transmitting end of the first optocoupler is connected in series between the central processing module and the grounding module; the transmitting end of the second optocoupler is connected in series between the central processing module and the grounding module.

[0012] In some embodiments, the load unit includes a first resistor and a second resistor; one end of the first resistor is electrically connected to the lamp group unit; the other end of the first resistor is electrically connected to one end of the second resistor and a receiving end of the second optocoupler; one end of the second resistor is electrically connected to the receiving end of the first optocoupler, and the other end of the second resistor is electrically connected to the first resistor and the receiving end of the second optocoupler.

[0013] In some embodiments, the grounding module includes a first grounding terminal and a second grounding terminal; the first grounding terminal is electrically connected to the receiving end of the first optocoupler and the receiving end of the second optocoupler; the second grounding terminal is electrically connected to the transmitting end of the first optocoupler and the transmitting end of the second optocoupler.

[0014] In some of the embodiments, the central processing module includes a first dim button control port; the first dim button control port is electrically connected to the transmitting end of the first optocoupler, and is used to control the turning on and off of the dim function of the button by outputting high level and low level.

[0015] In some of the embodiments, the central processing module includes a first highlight button control port; the first highlight button control port is electrically connected to the transmitting end of the second optocoupler, and is used to control the turning on and off of the highlight function of the button module by outputting high level and low level.

[0016] In some of these embodiments, the central processing module includes a second dim button control port and a second highlight button control port;

[0017] The second dim button control port is electrically connected to the transmitting end of the first optical coupler; the second highlight button control port is electrically connected to the transmitting end of the second optical coupler;

[0018] The level output by the second dim button control port is a first level, and the level output by the second highlight button control port is a second level; the level pair composed of the first level and the second level is used to control the state information of the button.

[0019] In some embodiments, the lamp group unit includes N lamp beads; the N lamp beads are connected in series; and N is a positive integer greater than or equal to 2.

[0020] In some embodiments, the lamp group unit includes M lamp groups; each of the lamp groups includes one or more lamp beads connected in series; the M lamp groups are connected in parallel; and M is a positive integer greater than or equal to 2.

[0021] Compared with the related art, the key brightness adjustment device provided by the present application realizes the control of the key brightness by setting different control parameters in the central processing module to control the conduction and disconnection between the button module and the grounding module. It can realize the replacement of the turning on and off of the dim light in the same key, which solves the problem in the related art that the dim light cannot be replaced by itself, or two different keys need to be designed to replace the key brightness, resulting in a waste of resources.

[0022] Details of one or more embodiments of the present application are set forth in the following drawings and description to make other features, objects, and advantages of the present application more readily apparent. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0024] Figure 1 is a structural schematic diagram of a key brightness adjustment device of this embodiment;

[0025] Figure 2 is a structural schematic diagram of another key brightness adjustment device of this embodiment;

[0026] Figure 3 Schematic diagram of the circuit structure of the key brightness adjustment device of this embodiment. DETAILED DESCRIPTION

[0027] In order to more clearly understand the purpose, technical solutions and advantages of the present application, the present application is described and illustrated below in conjunction with the accompanying drawings and embodiments.

[0028] Unless otherwise defined, the technical terms or scientific terms involved in this application shall have the general meaning understood by people with ordinary skills in the technical field to which this application belongs. The words "one", "a", "a", "the", "these" and the like in this application do not represent quantitative restrictions, and they can be singular or plural. The terms "include", "comprise", "have" and any variants thereof involved in this application are intended to cover non-exclusive inclusions; for example, a process, method and system, product or device comprising a series of steps or modules (units) is not limited to the listed steps or modules (units), but may include unlisted steps or modules (units), or may include other steps or modules (units) inherent to these processes, methods, products or devices. The words "connect", "connected", "coupled" and the like involved in this application are not limited to physical or mechanical connections, but may include electrical connections, whether directly or indirectly. The "multiple" involved in this application refers to two or more. "And / or" describes the association relationship of associated objects, indicating that there can be three relationships. For example, "A and / or B" can mean: A exists alone, A and B exist at the same time, and B exists alone. Usually, the character " / " indicates that the objects associated with each other are in an "or" relationship. The terms "first", "second", "third", etc. involved in this application are only used to distinguish similar objects and do not represent a specific ordering of the objects.

[0029] See also Figure 1 , Figure 1 1 is a schematic diagram of the structure of a key brightness adjustment device 100 of this embodiment. Figure 1 As shown, the key brightness adjustment device 100 includes: a power module 110, a central processing module 120, an optical coupling module 130, a button module 140 and a grounding module 150; the power module 110 is electrically connected to the button module 140 and is used to supply power to the button module 140; the central processing module 120 is electrically connected to the button module 140 and the optical coupling module 130, and is used to respond to the control parameters set by the user and send control information corresponding to the control parameters to the optical coupling module 130; the optical coupling module 130 is electrically connected to the grounding module 150 and the button module 140, and is used to control the conduction and disconnection between the button module 140 and the grounding module 150 in response to the received control information; the button module 140 is used to control the key brightness based on the conduction and disconnection between the button module 140 and the grounding module 150.

[0030] Among them, the button brightness adjustment device 100 in this embodiment is used to control the brightness of the buttons in the elevator, wherein the button brightness can be the brightness state of the button, which can specifically include the off state, the dim state and the highlighted state. Among them, the brightness of the button in the dim state is lower than the brightness of the button in the highlighted state. Specifically, the brightness values ​​of the buttons in different brightness states can be set according to needs, and this embodiment does not make specific limitations here. Generally, the buttons in the elevator are in an off state when they are not pressed, and when the buttons are pressed, the buttons in the elevator become dimly lit; however, in some cases, the buttons of the elevator are also required to be dimly lit when they are not pressed, and when the buttons are pressed, the buttons in the elevator change from the dimly lit state to the highlighted state. In this embodiment, the brightness state of the elevator buttons is used to switch the buttons between the off state and the dimly lit state by whether the buttons are pressed, or the brightness state of the elevator buttons is used to switch the buttons between the dimly lit state and the highlighted state by whether the buttons are pressed, so as to turn on and off the dim light function of the elevator buttons.

[0031] As an implementable embodiment, this embodiment uses the button module 140 to obtain the pressing state information of the button, and sends the pressing state information of the button to the central processing module 120. The central processing module 120, based on the received pressing state information of the button, identifies whether the button in the button module 140 is pressed. When it is identified that the button is pressed, in response to the control parameters set by the user, the control information corresponding to the control parameters is sent to the optical coupling module 130. In response to the received control information, the optical coupling module 130 controls the brightness of the button by controlling the conduction and disconnection between the button module 140 and the grounding module 150. The above-mentioned pressing state information of the button can be the state information of whether the button is pressed, and can include two state information of the button being pressed and the button not being pressed. The control parameters set by the user in the above-mentioned central processing module 120 can be the setting of the control parameters by the user through the control menu of the upper computer software.

[0032] This embodiment sets different control parameters in the central processing module 120 to control the conduction and disconnection between the button module 140 and the grounding module 150, thereby realizing the control of the key brightness. It can realize the replacement of dim on and off in the same key, which solves the problem in the related art that the dim on or off replacement cannot be completed automatically, or two different keys need to be designed to replace the key brightness, resulting in a waste of resources.

[0033] Specifically, as an implementable embodiment, Figure 2 FIG. 2 is a schematic diagram of another structure of a key brightness adjustment device according to the present embodiment. Figure 2As shown, the button module 140 includes a light group unit 142, a load unit 144 and a key unit 146; the light group unit 142 is connected in series between the power module 110 and the load unit 144, and is used to provide brightness for the key; the load unit 144 is connected in series between the light group unit 142 and the optical coupling module 130, and is used to limit the current of the light group unit 142; the key unit 146 is connected in series between the power module 110 and the central processing module 120, and is used to generate the key pressing state information based on the current state of the key, and send the key pressing state information to the central processing module 120.

[0034] The above-mentioned light group unit 142 can be a light group composed of multiple LED lamp beads connected in series or / and in parallel. The above-mentioned light group unit 142 is used to provide brightness for the key through the light emission of the lamp beads when the circuit where the lamp beads are located is turned on, so as to realize the dim light function of the key. The above-mentioned load unit 144 may include one or more resistors for voltage division and current limiting of the light group unit 142. The above-mentioned button module may include a button, and the user can change the state of the button by pressing this button. Generally, the state of the button is a state in which the button is not pressed. When the button is pressed by the user, the state of the button changes to a state in which the button is pressed. At this time, the button adjusts the brightness of the button according to the control parameters set by the user.

[0035] Figure 3 Schematic diagram of the circuit structure of the key brightness adjustment device of this embodiment. Figures 1 to 3 As shown, the power module 110 includes a power source VDD. The button module 140 includes a light unit 142, a load unit 144 and a key unit 146, wherein the key unit 146 includes a key SW.

[0036] In one embodiment, see Figure 3 The optical coupling module 130 includes a first optical coupling O1 and a second optical coupling O2; the first optical coupling O1 and the second optical coupling O2 include a transmitting end and a receiving end respectively; the receiving end of the first optical coupling O1 is connected in series between the button module 140 and the grounding module 150; the receiving end of the second optical coupling O2 is connected in series between the button module 140 and the grounding module 150; the transmitting end of the first optical coupling O1 is connected in series between the central processing module 120 and the grounding module 150; the transmitting end of the second optical coupling O2 is connected in series between the central processing module 120 and the grounding module 150.

[0037] In this embodiment, the above-mentioned optical coupling module 130 can be a photoelectric isolator that transmits electrical signals using light as a medium. Therefore, the transmitting ends of the first optical coupling O1 and the second optical coupling O2 can be infrared light-emitting diodes, and the receiving ends of the first optical coupling O1 and the second optical coupling O2 can be photosensitive semiconductor tubes. When the potential of the control parameter in the central processing module 120 is at a high level, the circuit of the transmitting end of the optical coupling module 130 connected to the central processing module 120 is turned on, and the light-emitting diode emits light at this time, and the photosensitive semiconductor at the receiving end is turned on because of receiving the light from the transmitting end, so that the button module 140 connected to the optical coupling module and the grounding module 150 are turned on, thereby realizing that the light group unit 142 in the button module 140 is turned on and emits light. When the potential of the control parameter in the central processing module 120 is at a low level, the circuit at the transmitting end of the optocoupler module 130 connected to the central processing module 120 is not conducting, and the light-emitting diode does not emit light. The photosensitive semiconductor at the receiving end does not conduct because it does not receive the light from the transmitting end, and there is no conduction between the button module 140 and the grounding module 150, and thus the lamp group unit 142 in the button module 140 does not emit light, and the button is in an off state.

[0038] In addition, see Figure 3 In one embodiment, the load unit 144 includes a first resistor R1 and a second resistor R2; one end of the first resistor R1 is electrically connected to the lamp group unit 142; the other end of the first resistor R1 is electrically connected to one end of the second resistor and the receiving end of the second optocoupler O2; one end of the second resistor R2 is electrically connected to the receiving end of the first optocoupler O1, and the other end of the second resistor R2 is electrically connected to the receiving ends of the first resistor R1 and the second optocoupler O2.

[0039] In this embodiment, when the receiving end of the second optical coupler O2 connected to the first resistor R1 is turned on, and the receiving end of the first optical coupler O1 connected to the second resistor R2 is not turned on, the first resistor R1 is turned on to the grounding module 150, the circuit through the first resistor R1 is turned on, the circuit of the lamp unit 142 connected to the first resistor R1 is turned on, and the lamp unit emits light according to the first brightness. When the receiving end of the second optical coupler O2 connected to the first resistor R1 is not turned on, and the receiving end of the first optical coupler O1 connected to the second resistor R2 is turned on, the second resistor R2 is turned on to the grounding module 150, the circuit through the second resistor R2 is turned on, because the first resistor R1 and the second resistor R2 are connected in series at this time, therefore, the circuit of the first resistor R1 and the second resistor R2 in series is turned on, the circuit of the lamp unit 142 connected to the first resistor R1 is turned on, and the lamp unit emits light according to the second brightness, but because the first resistor R1 and the second resistor R2 are connected in series at this time, the resistance increases, so the second brightness at this time is less than the first brightness. When the receiving end of the second optical coupler O2 connected to the first resistor R1 is not conducting, and the receiving end of the first optical coupler O1 connected to the second resistor R2 is not conducting, the circuit of the lamp unit 142 connected to the first resistor R1 is not conducting, and the lamp unit does not light up. When the receiving end of the second optical coupler O2 connected to the first resistor R1 is conducting, and the receiving end of the first optical coupler O1 connected to the second resistor R2 is conducting, the first resistor R1 is conducting with the grounding module 150, and only the circuit through the first resistor R1 is conducting, the circuit in which the first resistor R1 and the second resistor R2 are connected in series is conducting, and the circuit of the lamp unit 142 connected to the first resistor R1 is conducting. At this time, the resistance value in the load unit 144 in the circuit is equivalent to the first resistor R1 and the second resistor R2 being connected in series and then connected in parallel with the first resistor R1. At this time, the resistance value is less than the first resistor R1. Therefore, the current in the circuit is greater than the current when there is only the first resistor R1. At this time, the lamp unit emits light according to the third brightness, and the third brightness is greater than the first brightness.

[0040] In one embodiment, continue to see Figure 3 The grounding module 150 includes a first grounding terminal GND1 and a second grounding terminal GND2; the first grounding terminal GND1 is electrically connected to the receiving end of the first optocoupler O1 and the receiving end of the second optocoupler O2; the second grounding terminal GND2 is electrically connected to the transmitting end of the first optocoupler O1 and the transmitting end of the second optocoupler O2.

[0041] In this embodiment, the first ground terminal GND1 and the second ground terminal GND2 are isolated from each other. The first ground terminal GND1 can be the negative pole of the power supply of the circuit of the receiving end of each optocoupler in the button module 140 and the optocoupler module 130. The second ground terminal GND2 can be the negative pole of the power supply of the circuit of the transmitting end of each optocoupler in the central processing module 120 and the optocoupler module 130. In this embodiment, by setting the first ground terminal GND1 and the second ground terminal GND2 that are isolated from each other, the transmitting end and the receiving end of each optocoupler in the optocoupler module are isolated from each other and do not affect each other, thereby achieving a better photoelectric isolation effect.

[0042] In one embodiment, the central processing module 120 includes a first dim button control port; the first dim button control port is electrically connected to the transmitting end of the first optical coupler O1, and is used to control the dim function of the button to be turned on and off by outputting high level and low level.

[0043] The first dim button control port may be a control port for controlling the dim function of the key to be turned on and off by outputting high and low levels in response to the control parameters set by the user. The central processing module 120 includes a first dim button control port, which controls the dim function of the key to be turned on and off by outputting high and low levels. Specifically, when the first dim button control port outputs a high level, the transmitting end of the first optocoupler O1 electrically connected to the first dim button control port is turned on, and the light emitting diode emits light at this time. The photosensitive semiconductor at the receiving end of the first optocoupler O1 is turned on because it receives the light from the transmitting end, so that the button module 140 connected to the first optocoupler O1 is turned on with the grounding module 150, that is, the circuit in which the first resistor R1 and the second resistor R2 are connected in series is turned on, thereby realizing the light group unit 142 in the button module 140. When the button is turned on, the dim state of the button is realized; when the dim state of the button needs to be released, the first dim light button control port can be made to output a low level, at which time the transmitting end of the first optocoupler O1 electrically connected to the first dim light button control port is not turned on, and the light emitting diode does not emit light. The photosensitive semiconductor at the receiving end of the first optocoupler O1 is in a cut-off state because it cannot receive the light from the transmitting end, so that the button module 140 connected to the first optocoupler O1 and the grounding module 150 are not turned on, that is, the circuit connected in series with the first resistor R1 and the second resistor R2 is not turned on, thereby realizing that the light group unit 142 in the button module 140 is not turned on and the button becomes unlit. This embodiment uses the first dim light button control port, and then outputs a high level and a low level through the first dim light button control port to turn on and off the dim light function of the button, and to switch between the dim light state and the unlit state of the button.

[0044] In one embodiment, the central processing module 120 includes a first highlight button control port; the first highlight button control port is electrically connected to the transmitting end of the second optical coupler O2, and is used to control the opening and closing of the highlight function of the button module 140 by outputting high level and low level.

[0045] The first highlight button control port can be a control port for controlling the turning on and off of the highlight function of the button by outputting high level and low level in response to the control parameters set by the user. The central processing module 120 includes a first highlight button control port, which controls the turning on and off of the highlight function of the button by outputting high level and low level. Specifically, when the first highlight button control port outputs a high level, the transmitting end of the second optical coupler O2 electrically connected to the first highlight button control port is turned on, and the light emitting diode emits light at this time, and the photosensitive semiconductor at the receiving end of the second optical coupler O2 is turned on because it receives the light from the transmitting end, so that the button module 140 connected to the second optical coupler O2 is turned on with the grounding module 150, that is, the circuit through the first resistor R1 is turned on, thereby realizing the light group unit 142 in the button module 140. The button module 140 is turned on to realize the highlighted state of the button; when the highlighted state of the button needs to be released, the first highlighted button control port can output a low level, at which time the transmitting end of the second optical coupler O2 electrically connected to the first highlighted button control port is not turned on, and the light-emitting diode does not emit light. The photosensitive semiconductor at the receiving end of the second optical coupler O2 is in a cut-off state because it cannot receive the light from the transmitting end, so that the button module 140 connected to the second optical coupler O2 and the grounding module 150 are not turned on, that is, the circuit through the first resistor R1 is not turned on, and then the light group unit 142 in the button module 140 is turned off to realize that the button becomes unlit. This embodiment uses the first highlighted button control port, and then outputs high and low levels through the first highlighted button control port to turn on and off the highlight function of the button, and to switch between the highlighted state and the unlit state of the button.

[0046] In one embodiment, continue to see Figure 3 The central processing module 120 includes a second twilight button control port LLC and a second highlight button control port LED; the second twilight button control port LLC is electrically connected to the transmitting end of the first optocoupler O1; the second highlight button control port LED is electrically connected to the transmitting end of the second optocoupler O2; the level output by the second twilight button control port LLC is a first level, and the level output by the second highlight button control port LED is a second level; the level pair composed of the first level and the second level is used to control the brightness of the key.

[0047] In this embodiment, the second dim button control port LLC may be a control port for controlling the on and off of the dim function of the key by outputting a high level and a low level in response to the control parameters set by the user. The second highlight button control port LED may be a control port for controlling the on and off of the highlight function of the key by outputting a high level and a low level in response to the control parameters set by the user. Specifically, the brightness of the key may be controlled by a level pair consisting of a first level and a second level. For example, if the first level is a high level and is recorded as 1, the first level is a low level and is recorded as 0, the second level is a high level and is recorded as 1, and the second level is a low level and is recorded as 0, then the level pair may be represented by 0 and 1. When the first level is a high level and the second level is a low level, the level pair consisting of the first level and the second level is 10, and so on. When the level pair is 00, the transmitting end of the first optical coupler O1 is cut off, and the transmitting end of the second optical coupler O2 is cut off, and then the receiving end of the first optical coupler O1 is not conducting, and the receiving end of the second optical coupler O2 is not conducting, and the light group is not on. When the level pair is 01, the transmitting end of the first optocoupler O1 is cut off, and the transmitting end of the second optocoupler O2 is turned on. Then, the receiving end of the first optocoupler O1 is not turned on, and the receiving end of the second optocoupler O2 is turned on. At this time, the light group is bright. When the level pair is 11, the transmitting end of the first optocoupler O1 is turned on, and the transmitting end of the second optocoupler O2 is turned on. Then, the receiving end of the first optocoupler O1 is turned on, and the receiving end of the second optocoupler O2 is turned on. At this time, the light group is bright. When the level pair is 10, the transmitting end of the first optocoupler O1 is turned on, and the transmitting end of the second optocoupler O2 is not turned on. Then, the receiving end of the first optocoupler O1 is turned on, and the receiving end of the second optocoupler O2 is not turned on. At this time, the light group is slightly bright. Because the state of the key can be divided into two states: the key is pressed and the key is not pressed, the brightness control of the key can be achieved by setting different level pairs for the two states of the key. For example, when the key is not pressed, the key needs to be in a dim state, and when the key is pressed, the key needs to be in a bright state. Then, the level pair when the key is not pressed can be set to 10, and the level pair when the key is pressed can be set to 11. The specific setting of different level pairs for the two states of the key is not specifically limited in this embodiment, as long as the high and low levels of the second dim button control port LLC and the second bright button control port LED can be set to achieve the brightness control of the key.

[0048] Preferably, the brightness of the buttons can be controlled by setting the parameters of the second dim button control port LLC and the second bright button control port LED in the control menu through the control menu of the host computer software.

[0049] In one embodiment, the lamp assembly unit 142 includes N lamp beads, which are connected in series, and N is a positive integer greater than or equal to 2. For example, the lamp assembly unit 142 includes 10 lamp beads, which are connected in series.

[0050] In this embodiment, the number of N can be set according to specific needs, and this embodiment does not make any specific limitation here.

[0051] In one embodiment, the lamp group unit 142 includes M lamp groups; each lamp group includes one or more lamp beads connected in series; the M lamp groups are connected in parallel; M is a positive integer greater than or equal to 2. For example, the lamp group unit 142 includes 2 lamp groups, the 2 lamp groups are connected in parallel, each lamp group includes 10 lamp beads, and the 10 lamp beads in each lamp group are connected in series.

[0052] Continue to see Figure 3 The lamp group unit 142 includes two lamp groups, namely L1 and L2.

[0053] In this embodiment, the number of M and the number of lamp beads in each lamp group can be set according to specific needs, and this embodiment does not make any specific limitations here.

[0054] It should be noted that the specific examples in this embodiment can refer to the examples described in the above embodiments and optional implementation modes, and will not be repeated in this embodiment.

[0055] It should be understood that the specific embodiments described herein are only used to explain the application, rather than to limit it. Based on the embodiments provided in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of this application.

[0056] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties.

[0057] Obviously, the drawings are only some examples or embodiments of the present application. For ordinary technicians in the field, the present application can also be applied to other similar situations based on these drawings without creative work. In addition, it is understandable that although the work done in this development process may be complicated and lengthy, for ordinary technicians in the field, certain changes in design, manufacturing or production based on the technical content disclosed in this application are only conventional technical means and should not be regarded as insufficient content disclosed in this application.

[0058] The term "embodiment" in this application refers to a specific feature, structure or characteristic described in conjunction with the embodiment that can be included in at least one embodiment of the present application. The appearance of this phrase in various locations in the specification does not necessarily mean the same embodiment, nor does it mean that it is mutually exclusive with other embodiments and is independent or optional. It is clearly or implicitly understood by those of ordinary skill in the art that the embodiments described in this application can be combined with other embodiments without conflict.

[0059] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of patent protection. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the scope of protection of the present application. Therefore, the scope of protection of the present application shall be subject to the attached claims.

Claims

1. A key brightness adjustment device, characterized in that: The device comprises: a power supply module, a central processing module, an optical coupling module, a button module and a grounding module; The power module is electrically connected to the button module and is used to supply power to the button module; The central processing module is electrically connected to the button module and the optical coupling module, and is used to respond to the control parameters set by the user and send control information corresponding to the control parameters to the optical coupling module; The optical coupling module is electrically connected to the grounding module and the button module, and is used to control the conduction and disconnection between the button module and the grounding module in response to the received control information; The button module is used to control the button brightness based on the conduction and disconnection between the button module and the grounding module.

2. The key brightness adjustment device according to claim 1, characterized in that: The button module includes a light group unit, a load unit and a key unit; the light group unit is connected in series between the power module and the load unit to provide brightness for the key; the load unit is connected in series between the light group unit and the optical coupling module to limit the current of the light group unit; The button unit is connected in series between the power module and the central processing module, and is used to generate button pressing status information based on the current status of the button, and send the button pressing status information to the central processing module.

3. The key brightness adjustment device according to claim 2, characterized in that: The optocoupler module includes a first optocoupler and a second optocoupler; the first optocoupler and the second optocoupler include a transmitting end and a receiving end respectively; the receiving end of the first optocoupler is connected in series between the button module and the grounding module; the receiving end of the second optocoupler is connected in series between the button module and the grounding module; the transmitting end of the first optocoupler is connected in series between the central processing module and the grounding module; the transmitting end of the second optocoupler is connected in series between the central processing module and the grounding module.

4. The key brightness adjustment device according to claim 3, characterized in that: The load unit includes a first resistor and a second resistor; one end of the first resistor is electrically connected to the lamp group unit; the other end of the first resistor is electrically connected to one end of the second resistor and a receiving end of the second optocoupler; one end of the second resistor is electrically connected to the receiving end of the first optocoupler, and the other end of the second resistor is electrically connected to the first resistor and the receiving end of the second optocoupler.

5. The key brightness adjustment device according to claim 4, characterized in that: The grounding module includes a first grounding terminal and a second grounding terminal; the first grounding terminal is electrically connected to the receiving terminal of the first optocoupler and the receiving terminal of the second optocoupler; the second grounding terminal is electrically connected to the transmitting terminal of the first optocoupler and the transmitting terminal of the second optocoupler.

6. The key brightness adjustment device according to claim 5, characterized in that: The central processing module includes a first dim button control port; the first dim button control port is electrically connected to the transmitting end of the first optical coupler, and is used to control the turning on and off of the dim function of the button by outputting a high level and a low level.

7. The key brightness adjustment device according to claim 5, characterized in that: The central processing module includes a first highlight button control port; the first highlight button control port is electrically connected to the transmitting end of the second optocoupler, and is used to control the turning on and off of the highlight function of the button module by outputting a high level and a low level.

8. The key brightness adjustment device according to claim 5, characterized in that: The central processing module includes a second dim button control port and a second highlight button control port; The second dim button control port is electrically connected to the transmitting end of the first optical coupler; the second highlight button control port is electrically connected to the transmitting end of the second optical coupler; The level output by the second dim button control port is a first level, and the level output by the second highlight button control port is a second level; the level pair consisting of the first level and the second level is used to control the brightness of the key.

9. The key brightness adjustment device according to claim 2, characterized in that: The lamp group unit includes N lamp beads; the N lamp beads are connected in series; and N is a positive integer greater than or equal to 2.

10. The key brightness adjustment device according to claim 2, characterized in that: The lamp group unit includes M lamp groups; each of the lamp groups includes one or more lamp beads connected in series; the M lamp groups are connected in parallel; and M is a positive integer greater than or equal to 2.

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