CN111596750A - Key system and interaction device - Google Patents

Key system and interaction device Download PDF

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Publication number
CN111596750A
CN111596750A CN202010408266.5A CN202010408266A CN111596750A CN 111596750 A CN111596750 A CN 111596750A CN 202010408266 A CN202010408266 A CN 202010408266A CN 111596750 A CN111596750 A CN 111596750A
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CN
China
Prior art keywords
key
pressing
force control
component
assembly
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010408266.5A
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Chinese (zh)
Inventor
杨晓锋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongguan Jingyang Electronics And Technology Co ltd
Original Assignee
Dongguan Jingyang Electronics And Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Dongguan Jingyang Electronics And Technology Co ltd filed Critical Dongguan Jingyang Electronics And Technology Co ltd
Priority to CN202010408266.5A priority Critical patent/CN111596750A/en
Publication of CN111596750A publication Critical patent/CN111596750A/en
Priority to PCT/CN2021/092808 priority patent/WO2021228043A1/en
Pending legal-status Critical Current

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3206—Monitoring of events, devices or parameters that trigger a change in power modality
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3234—Power saving characterised by the action undertaken
    • G06F1/325—Power saving in peripheral device
    • G06F1/3271—Power saving in keyboard
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/016—Input arrangements with force or tactile feedback as computer generated output to the user
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/702—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
    • H01H13/705—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches characterised by construction, mounting or arrangement of operating parts, e.g. push-buttons or keys
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/702—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
    • H01H13/705—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches characterised by construction, mounting or arrangement of operating parts, e.g. push-buttons or keys
    • H01H13/7065—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches characterised by construction, mounting or arrangement of operating parts, e.g. push-buttons or keys characterised by the mechanism between keys and layered keyboards
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/84—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by ergonomic functions, e.g. for miniature keyboards; characterised by operational sensory functions, e.g. sound feedback
    • H01H13/85—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by ergonomic functions, e.g. for miniature keyboards; characterised by operational sensory functions, e.g. sound feedback characterised by tactile feedback features

Abstract

The application provides a key system and mutual device, key system is including pressing detection component, button function module, power accuse subassembly and magnetic force component etc. through the cooperation of pressing detection component, button function module, power accuse subassembly and magnetic force component etc. can provide one kind and can carry out dynamics control and key value discernment to controllable power button key system and mutual device.

Description

Key system and interaction device
Technical Field
The application relates to the technical field of interactive equipment, in particular to a key system and an interactive device.
Background
The key is a very common interactive input device, and for a key input device (such as a keyboard) with high use frequency, the tapping hand feeling of the key is very important for a user. For example, mechanical keyboards are highly preferred by users because of their unique tapping paragraph feel.
In some key design schemes of the interactive input device, the electromagnetic element is controlled to apply forces in different directions to the key, so that the key can apply different feedback forces to the finger of a user in one pressing process, and the pressing process generates layered knocking paragraph feeling.
However, a key system capable of effectively controlling the controllable force keys and recognizing key values is absent in the prior art.
Disclosure of Invention
In order to solve at least one problem in the prior art, the application provides a key system and an interaction device for controlling a controllable force key.
One objective of the present application is to provide a key system, which includes a first pressing detection component, a key function component, a force control component, and a magnetic component;
the first pressing detection assembly is connected with the force control assembly and used for detecting the pressing state of at least one part of keys and sending the pressing state to the force control assembly;
the force control assembly is respectively connected with the key function assembly, the magnetic assembly and the first pressing detection assembly, and is configured to control the magnetic assembly to apply force along the key pressing direction or apply force deviating from the key pressing direction to the key according to the pressing state detected by the first pressing detection assembly, and transmit the pressing state to the key function assembly;
the key function component is configured to send the key value corresponding to the key to other equipment connected with the key function component according to the received pressing state.
In some possible implementations, the force control component is connected with a serial communication interface of the key function component; and the force control assembly sends the detected pressing state to the key function assembly in a serial communication mode.
In some possible implementations, the key system includes a plurality of the force control assemblies;
the serial communication interfaces of the force control assemblies are connected with the communication interfaces of the key function assemblies through communication buses; or the serial communication interfaces of the force control assemblies are respectively connected with the key function assembly through independent communication lines.
In some possible implementation manners, the key function component includes a plurality of first IO interfaces, the force control component includes a plurality of second IO interfaces respectively corresponding to the plurality of first IO interfaces, and the plurality of first IO interfaces are respectively connected to the plurality of second IO interfaces through IO communication lines; and the key functional component acquires the pressing state from the force control component through the IO communication line.
In some possible implementation manners, the force control assembly further includes a plurality of third IO interfaces, the plurality of third IO interfaces are connected to the plurality of first pressing detection assemblies through a scanning circuit, and the plurality of third IO interfaces acquire the pressing states acquired by the first pressing detection assemblies through a scanning manner;
the key function component acquires the pressing state from the key function component in a scanning mode;
the scanning clock domain of the key function component and the scanning clock domain of the force control component are relatively independent.
In some possible implementation manners, the force control component includes a register component, and the register component is configured to record the pressing states obtained through scanning of the plurality of third IO interfaces, and transmit the pressing states recorded in the middle of the scanning process of the key function component to the key function component.
In some possible implementations, the key system further includes a second press detection component, where the second press detection component is configured to detect a press state of at least a portion of the keys;
the key function component comprises a fourth IO interface, the fourth IO interface is connected with the second pressing detection component, and the key function component acquires the pressing state acquired by the second pressing detection component through the fourth IO interface.
In some possible implementations, the magnetic assembly includes an electromagnetic coil and a switching circuit composed of a plurality of switching elements, the switching circuit is respectively connected with the force control assembly and the electromagnetic coil;
the force control component is configured to control the plurality of switch elements in the switch circuit to be switched on or switched off according to a preset sequence in an operating state so as to supply currents with different directions and/or different magnitudes to the electromagnetic coil, so that the electromagnetic coil applies forces with different directions and/or different magnitudes to the key along the pressing of the key.
In some possible implementations, the key system further includes a power detection component; the electric energy detection assembly is used for generating a disconnection signal when detecting that the electric energy consumed by the key system is larger than a preset threshold value, and the disconnection signal is used for disconnecting an energy supply line of the magnetic assembly.
The embodiment of the application provides a key system and an interaction device, and the force control component controls the magnetic component to apply force to the keys according to the detected pressing state of the keys and sends the key states to the keyboard functional component for key value identification and communication with other equipment, so that the force control and the key value identification of the controllable force keys can be realized.
Another objective of the present application is to provide a key system, which includes a pressing detection component, a key function component, a force control component, and a magnetic component;
the pressing detection assembly is connected with the force control assembly and used for detecting the pressing state of the key and sending the pressing state to the force control assembly;
the force control assembly is respectively connected with the magnetic assembly and the pressing detection assembly, and the force control assembly is configured to control the magnetic assembly to apply force along the pressing direction of the key or apply force away from the pressing direction of the key to the key according to the pressing state detected by the pressing detection assembly;
the key function component is connected with the pressing detection component and used for sending the key value corresponding to the key to other equipment connected with the key function component according to the received pressing state.
In some possible implementations, the key includes at least two pressing strokes, and the pressing detection component includes a stroke detection unit;
the stroke detection unit is configured to detect a pressed state of the key, the pressed state including the key being pressed from a first stroke section to a second stroke section or released from the second stroke section to the first stroke section;
the key function component and the force control component are respectively connected with the stroke detection unit to acquire the pressing state acquired by the stroke detection unit.
In some possible implementations, the key function component is connected to the plurality of stroke detection units through a scanning circuit; the force control assembly obtains the pressing states collected by the stroke detection units based on the scanning signals output by the key function assembly.
In some possible implementations, the key includes at least two sections of pressing strokes, and the pressing detection component includes a stroke detection unit and a conduction detection unit;
the stroke detection unit is configured to detect a first pressed state of the key, the first pressed state including the key being pressed from a first stroke section to a second stroke section or released from the second stroke section to the first stroke section; the force control assembly is connected with the stroke detection unit to acquire the first pressing state acquired by the stroke detection unit;
the conduction detection unit is configured to detect a second pressing state of the key, wherein the second pressing state comprises that the key is pressed to a conduction trigger point which is positioned at one end of a pressing stroke of the key, which is far away from a pressing starting point; the key function component is connected with the conduction detection unit to acquire a second pressing state acquired by the conduction detection unit.
In some possible implementations, the force control component obtains the first pressing state from the plurality of stroke detection units by means of scanning detection, and the key function component obtains the second pressing state from the plurality of conduction detection units by means of scanning detection; wherein, the force control component and the key function component scan clock domains are relatively independent.
In some possible implementations, the key function component and the force control component are connected by a communication line; the force control assembly obtaining control strategy data from the force control assembly via the communication line;
and when the force control assembly detects that the pressing state changes, the electromagnetic coil is controlled to apply forces in different directions and/or different magnitudes to the key according to a preset time sequence in the control strategy data.
The embodiment of the application provides a key system and an interaction device, and the force control assembly and the key function assembly are connected with the pressing detection assembly, so that the force control assembly and the keyboard function assembly can acquire a key state from the pressing detection assembly, and respectively execute force control and key value identification actions according to the key state, and the key system capable of realizing force control and key value identification of a controllable force key is provided.
Another objective of the present application is to provide a key system, which includes a pressing detection component, a force control component, and a magnetic component;
the pressing detection assembly is connected with the force control assembly and is used for detecting the pressing state of the key and sending the pressing state to the force control assembly, and the pressing stroke of the key comprises at least two stroke sections;
the force control assembly is connected with the pressing detection assembly, the force control assembly is configured to enter a working state when the pressing state is that the key is pressed from a first stroke section to a second stroke section, and enter a dormant state after the pressing state is that the key is released from the second stroke section to the first stroke section; the power consumption of the force control assembly in the working state is larger than that in the dormant state;
the magnetic assembly is connected with the force control assembly, and the force control assembly is used for controlling the magnetic assembly to apply force along the key pressing direction or apply force deviating from the key pressing direction to the key in the working state.
In some possible implementations, the key system further includes a key function component;
the key function component is configured to detect a pressing state of the key and send a key value corresponding to the key to other equipment in communication connection with the key function component according to the pressing state.
In some possible implementations, the force control component and the key function component are respectively connected to the key, and the pressing state of the key is acquired relatively independently.
In some possible implementations, the key function component is further connected to the force control component, and the key function component is further configured to send the pressing state to the force control component.
In some possible implementations, the magnetic assembly is configured to apply a fixed force to the key in a direction away from the key depression or to apply no force to the key when the force control assembly is in the resting state.
The embodiment of the application provides a key system and an interaction device, and the force control assembly is set to be in a working state when the key is detected to be pressed to the second stroke section from the first stroke section, and is set to be in a dormant state when the key is detected to be released to the first stroke section from the second stroke section, so that the force control assembly does not need to be kept in the working state all the time, and the whole electric energy requirement of the key system or the interaction device using the key system can be reduced.
Another objective of the present application is to provide an interactive device, which includes a key and the key system provided in the present application.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
Fig. 1 is a schematic diagram of a key system according to an embodiment of the present disclosure;
fig. 2 is a schematic diagram of a key stroke provided in the embodiment of the present application;
3-22 are various other schematic diagrams of a key system provided by an embodiment of the present application;
fig. 23 and fig. 24 are schematic control flow diagrams of a key system according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present application, it is noted that the terms "first", "second", "third", and the like are used merely for distinguishing between descriptions and are not intended to indicate or imply relative importance.
In the description of the present application, it is further noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
First embodiment
Referring to fig. 1, fig. 1 is a schematic view of a key system according to the present embodiment, which may include a first pressing detection component 130, a key function component 140, a force control component 110, and a magnetic component 120.
The first pressing detection component 130 is arranged corresponding to the key to be detected, and the first pressing detection component 130 is connected to the force control component 110, and is configured to detect a pressing state of at least a portion of the key and send the pressing state to the force control component 110. In this embodiment, the at least a part of the keys may be one of the plurality of keys or a part of the plurality of keys.
In one possible implementation, the pressing stroke of the key comprises at least two stroke segments. The pressing stroke is the maximum moving distance of the key from being pressed to being incapable of moving continuously. For example, referring to fig. 2, the maximum pressing stroke of the key is D, and the pressing stroke may be divided into at least a first stroke segment D1 and a second stroke segment D2.
In this embodiment, the first press detection component 130 can detect the press state of the key and notify the force control component 110 of the press state. For example, when the first press detection assembly 130 detects that the key is in a first stroke segment, a first signal may be generated and sent to the force control assembly 110; when the first press detection assembly 130 detects that the key is in the second stroke segment, a second signal may be generated and sent to the force control assembly 110.
The first signal or the second signal may be a digital signal, or may also be an analog level signal, or one of the first signal and the second signal may also be represented by the first press detection assembly 130 without sending any signal.
In some implementations, the first stroke segment d1 may have a length. In this implementation, the key may be considered to have entered a second stroke segment from the first stroke segment after being pressed a certain distance.
In other implementations, the first stroke segment d1 may be only one point or only a very short length. In this implementation, it can be considered that the key has been pressed from the first stroke segment into the second stroke segment.
The force control assembly 110 is respectively connected to the key function assembly 140, the magnetic assembly 120 and the first pressing detection assembly 130, and the force control assembly 110 is configured to control the magnetic assembly 120 to apply a force along the key pressing direction or a force away from the key pressing direction to the key according to the pressing state detected by the first pressing detection assembly 130, and transmit the pressing state to the key function assembly 140.
The key function component 140 is configured to send the key value corresponding to the key to other devices connected to the key function component 140 according to the received pressing state. For example, when the key system provided in this embodiment is applied to a keyboard, the key function component 140 may be connected to a host computer, and send the identified key value to the host computer.
Based on the above design, the key system provided in this embodiment can control the force applied to the key by the magnetic assembly 120 according to the detected pressing state of the key, and send the key state to the keyboard functional assembly for key value identification and communication with other devices, so as to implement strength control and key value identification of the controllable force key.
In the case system for controlling the controllable force button provided in this embodiment, an existing button function chip having a certain function may be used as the button function module 140, and the existing function of the button function chip may be maintained, so long as the force control module 110 transmits the button state to the button function chip.
That is to say, on the one hand, by adopting the scheme provided by the embodiment, the control system of the general key is modified into a case system for controlling the controllable force key on the basis of using the existing key function component 140, so that the production and manufacturing cost of the controllable force key system can be solved to a certain extent. On the other hand, in the solution provided in the present embodiment, the key function component 140 and the force control component 110 are relatively decoupled in function, which provides higher convenience and flexibility for the hardware and software maintenance of the key system.
In one possible implementation, the force control component 110 and the key function component 140 are connected via a serial communication interface. The force control component 110 sends the detected pressing state to the key function component 140 through serial communication.
For example, the force control component 110 may obtain the pressing states collected by a plurality of the first pressing detections by means of scanning detection, and then convert the pressing states into digital serial signals, and send the digital serial signals to the key function component 140 through a serial communication interface.
Optionally, in this embodiment, the key system includes a plurality of the force control assemblies 110.
Referring to fig. 3a, the serial communication interfaces of the force control components 110 may be connected to the communication ports of the key function components 140 through a communication bus. Referring to fig. 3b, the serial communication interfaces of the force control assemblies 110 are respectively connected to the key function assemblies 140 through independent communication lines.
Based on the above design, in the solution provided in this embodiment, the transmission of the key states between the force control assembly 110 and the key function assembly 140 is realized by using a serial communication line interface, so that the wiring difficulty and the unlimited cost of the hardware communication line between the force control assembly 110 and the key function assembly 140 can be reduced.
In some possible implementations, the button function component 140 may also obtain control strategy data from the force control component 110 via the serial communication line interface. When detecting that the pressing state changes, the force control component 110 controls the electromagnetic coil to apply forces in different directions and/or different magnitudes to the key according to a preset time sequence in the control strategy data.
In other words, in this embodiment, the force control policy of the force control component 110 for the controllable force key can be set, and the personalized force control policy can be configured through an external device (e.g., a computer host) and issued to the force control component 110 through the key function component 140, so that the force control component 110 realizes diversified force control, thereby better meeting the personalized requirements of the user.
In another possible implementation manner, referring to fig. 4, the key function component 140 includes a plurality of first IO interfaces, the force control component 110 includes a plurality of second IO interfaces respectively corresponding to the plurality of first IO interfaces, and the plurality of first IO interfaces are respectively connected to the plurality of second IO interfaces through IO communication lines; the button function module 140 obtains the pressed state from the force control module 110 through the IO communication line.
Based on the above design, in the key system provided in this embodiment, the existing key scanning function of the key function component 140 may be used, and the scanning IO port of the key function component 140 is directly connected to the force control component 110, so that the scanning function of the key function component 140 does not need to be adjusted to a large extent, and a keyboard system capable of controlling the key force and identifying the key values may be provided.
Optionally, in this embodiment, the force control assembly 110 further includes a plurality of third IO interfaces, the plurality of third IO interfaces are connected to the plurality of first pressing detection assemblies 130 through a scanning circuit, and the plurality of third IO interfaces acquire the pressing states acquired by the first pressing detection assemblies 130 through a scanning manner.
The key function component 140 obtains the pressed state from the key function component 140 in a scanning manner. The scan clock domain of the key function component 140 is relatively independent of the scan clock domain of the force control component 110.
In other words, the force control component 110 may independently perform an operation of scanning to acquire the pressed state, and then transmit the acquired pressed state to the key function component 140 when acquiring the scanning signal of the key function component 140 through the second IO interface.
In this manner, the scanning actions of the force control component 110 and the key function component 140 may be performed in different clock domains, thereby further decoupling the force control component 110 and the key function component 140, reducing the need for synchronization between the force control component 110 and the key function component 140.
Further, the force control component 110 includes a register component, and the register component is configured to record the pressing states obtained through scanning of the plurality of third IO interfaces, and transmit the pressing states recorded in the middle of the scanning process of the key function component 140 to the key function component 140. The register unit may be composed of a plurality of registers, or other transient storage elements or nonvolatile storage elements.
In a possible implementation manner, referring to fig. 5, the key system further includes a second press detection component 170, where the second press detection component 170 is configured to detect a press state of at least a portion of the keys.
The key function component 140 further includes a fourth IO interface, the fourth IO interface is connected to the second pressing detection component 170, and the key function component 140 acquires a pressing state acquired by the second pressing detection component 170 through the fourth IO interface.
In other words, in this embodiment, some of the keys managed by the key system may be detected by the force control chip and sent to the key function component 140. For the part of the keys, the force control chip can control the corresponding magnetic assembly 120 to apply different forces to the keys according to the key states.
And a part of keys can directly detect the key states by the keyboard functional components, and the part of keys can not be controllable keys.
For example, the keys with high use frequency or great influence on the hand feeling of a user on the keyboard can be set as the controllable force keys. The first press detection component 130 is correspondingly arranged, the force control chip detects the key state and performs force control action, and the key state is transmitted to the keyboard functional component.
For the keys which are not frequently used on the keyboard or have little influence on the hand feeling of the user, the keys do not need to be set as controllable force keys, and the pressing states of the keys are directly detected by the key function chip through the existing scanning connection mode.
Based on the design, the key system can be designed more flexibly, and therefore, the manufacturing cost and the software control cost of the key system hardware can be controlled more flexibly.
In this embodiment, the magnetic assembly 120 includes an electromagnetic coil and a switching circuit composed of a plurality of switching elements, and the switching circuit is respectively connected to the force control assembly 110 and the electromagnetic coil.
The force control assembly 110 is configured to control the plurality of switch elements in the switch circuit to be turned on or off according to a preset sequence in an operating state, so as to supply currents with different directions and/or different magnitudes to the electromagnetic coil, and enable the electromagnetic coil to apply forces with different directions and/or different magnitudes to the key along the pressing direction of the key.
Referring to fig. 6, in some possible implementations, the key system may further include a power detection component 150. The power detection component 150 is configured to generate a disconnection signal when detecting that the power consumed by the key system is greater than a preset threshold, where the disconnection signal is used to disconnect the power supply line of the magnetic component 120.
The power detection module 150 can directly control a power limit switch 160, as shown in fig. 6. The power supply line to the magnetic assembly 120 may be disconnected or restored by controlling the power limit switch 160. Referring to fig. 7, the power detection component 150 may also be connected to the key function component 140, the key function component 140 is further connected to a power limit switch 160, the power detection component 150 generates a turn-off signal to send to the key function component 140 when detecting that the consumed power is greater than a preset threshold, and the key function component 140 controls the power limit switch 160 to turn off.
In some possible implementations, the detecting the portion of the key that is in the first or second stroke segment by the first press detection component 130 includes: the device comprises a light-emitting element for emitting detection light and a photosensitive element for receiving the detection light.
When the key is pressed from a first stroke section to a second stroke section and released from the second stroke section to the first stroke section, the blocking degree of the transmission path of the detection light between the light-emitting element and the photosensitive element is different. The photosensitive element detects the pressing state of the key based on the receiving state of the detection light.
Referring to fig. 8a and 8b, this embodiment provides two possible detailed circuit schematic diagrams of the key system.
As shown in fig. 8a and 8b, the first press detection assembly may include a light emitting element D11 and a light sensing element S11.
If the key is in the first stroke segment, the detection light emitted by the light-emitting element D11 can be received by the light-sensing element S11; if the key is in the second stroke segment, the light transmission path between the light emitting element D11 and the light sensing element S11 is blocked, and the detection light emitted by the light emitting element D11 cannot be detected by the light sensing element S11. The conducting state of the photosensitive element S11 can be detected through the line Y1, so that the key is located in which stroke segment.
In order to save current, a switch element Q46 may be added in the present embodiment, and the pressing state of the key may be monitored by controlling the light emitting element D12 to emit light intermittently in a scanning manner through the signal output of the control line X1. Of course, Q46 may be eliminated and the power supply to the light emitting element D11 and the light receiving element S11 may be maintained for a long period of time.
The magnetic assembly may include a switching circuit consisting of switching elements Q42, Q43, Q44, and Q45, i.e., an electromagnetic coil K12. The switching elements Q42, Q43, Q44, and Q45 may be Metal-Oxide-Semiconductor Field Effect transistors (MOSFETs) or transistors. The switch circuit is respectively connected with the force control assembly and the electromagnetic coil. The force control assembly controls the current magnitude and direction of the electromagnetic coil by controlling the four switch elements to be switched on or switched off differently, so that the electromagnetic coil applies forces with different magnitudes or different directions to the key.
The electric energy detection component can be arranged on an energy supply circuit of the magnetic component, the electric energy detection component is connected with the key function component, and the key function component is also connected with a control end of a switch Q41 on the energy supply circuit of the magnetic component. And the key functional component disconnects the power supply of the magnetic component when the electric energy detection component detects that the electric energy consumption of the key system exceeds a threshold value.
The pressing state of the key is obtained by the force control component and the photosensitive element S11. As shown in fig. 8a, the key function unit and the force control unit may be connected via a serial communication line, through which the key function unit obtains the key state from the force control unit. As shown in fig. 8b, the key function module and the force control module may be connected by a plurality of IO scanning lines, and the key function module obtains the key state from the force control module by scanning and detecting through the IO scanning lines.
The embodiment also provides an interactive device, which may include a key and the key system provided by the embodiment. In this embodiment, the interactive device may be a keyboard, an electronic device integrated with keys, or a key switch.
To sum up, the embodiment of the present application provides a key system and an interaction device, where the force control component is set to be in a working state when it is detected that the key is pressed from the first stroke segment to the second stroke segment, and the force control component is set to be in a dormant state when it is detected that the key is released from the second stroke segment to the first stroke segment, so that the force control component does not need to be kept in the working state all the time, and the overall energy consumption of the key system or the interaction device using the key system can be reduced.
Second embodiment
Referring to fig. 9, fig. 9 is a schematic view of a key system according to the present embodiment, which may include a press detection assembly 230, a key function assembly 240, a force control assembly 210, and a magnetic assembly 220.
The pressing detection component 230 is connected to the force control component 210, and is configured to detect a pressing state of a key and send the pressing state to the force control component 210. Optionally, the pressed state may include that a key is pressed, or that a key is pressed to a certain extent.
The force control assembly 210 is connected to the magnetic assembly 220 and the pressing detection assembly 230, respectively, and the force control assembly 210 is configured to control the magnetic assembly 220 to apply a force along the pressing direction of the key or apply a force away from the pressing direction of the key according to the pressing state detected by the pressing detection assembly 230.
The key function component 240 is connected to the pressing detection component 230, and the key function component 240 is configured to send a key value corresponding to the key to other devices connected to the key function component 240 according to the received pressing state. For example, when the key system provided in this embodiment is applied to a keyboard, the key function component 240 may be connected to a host computer, and send the identified key value to the host computer.
In other words, in the present embodiment, the force control component 210 and the key function component 240 are both connected to the pressing detection component 230, so that the force control component 210 and the key function component 240 can both acquire the pressing state of the key from the pressing detection component 230.
Based on the above design, on one hand, the embodiment provides a force control and key value identification work for the controllable force key at the same time. On the other hand, in the key system provided in this embodiment, the action of the key function component 240 for acquiring the key state may not depend on the force control component 210, and the key function component 240 may still perform key value identification normally when the force control component 210 fails, so as to improve the fault tolerance and reliability of the entire key system.
In some possible implementations, the pressing detection component 230 is disposed corresponding to a key to be detected, and a pressing stroke of the key includes at least two stroke segments. Referring to fig. 10, the pressing detection assembly 230 may include a stroke detection unit 231, and the pressing state detected by the stroke detection unit 231 includes that the key is pressed from the first stroke section to the second stroke section or released from the second stroke section to the first stroke section.
Further, the key function module 240 is connected to the plurality of stroke detection units 231 through a scanning circuit. The force control components 210 all obtain the pressing states collected by the stroke detection units 231 based on the scanning signals output by the key function components 240.
For example, referring to fig. 11, the key function component 240 obtains the pressed state of each key in the keyboard array by means of row-column scanning detection, the key function component 240 sends a row scanning of the keys for a certain row, and the row scanning signal is transmitted to a certain row of the scanning circuit. When a key in the row is pressed, a column detection signal is generated, and the corresponding column scan line transmits the column detection signal to the key function component 240 and the force control component 210. In this way, a synchronous response of the scanning signal can be ensured, and a conflict between the signal scanning detection of the force control component 210 and the keyboard function component can be avoided.
In other possible implementations, referring to fig. 12, the key includes at least two pressing strokes, and the pressing detection assembly 230 includes a stroke detection unit 231 and a conduction detection unit 232.
The stroke detecting unit 231 is configured to detect a first pressed state of the key, which includes the key being pressed from a first stroke section to a second stroke section or released from the second stroke section to the first stroke section. The force control component 210 is connected to the stroke detection unit 231, and acquires the first pressing state acquired by the stroke detection unit 231.
The conduction detection unit 232 is configured to detect a second pressing state of the key, where the second pressing state includes that the key is pressed to a conduction trigger point, and the conduction trigger point is located at an end of a pressing stroke of the key, which is far away from a pressing starting point. The key function component 240 is connected to the conduction detection unit 232 to obtain a second pressing state acquired by the conduction detection unit 232.
In other words, in this implementation, the force control component 210 and the key function component 240 may perform different logical operation processes according to different pressing states. For example, the force control component 210 may start magnetic force control when the key is pressed a certain distance, and the key function component 240 needs to acquire the key value of the key and send it to other devices when the key is fully pressed.
Further, in the above implementation manner, the force control component 210 obtains the first pressing state from the plurality of stroke detection units 231 by means of scanning detection, and the key function component 240 obtains the second pressing state from the plurality of conduction detection units 232 by means of scanning detection. Wherein the force control component 210 and the key function component 240 are relatively independent of each other in terms of scanning clock domain.
In other words, since in this implementation, the case states detected by the force control component 210 and the key function component 240 are not the same, the problem of synchronization of scanning detection may not be considered, and therefore the scanning actions of the force control component 210 and the key function component 240 may be independent of each other and based on different clock signals.
In some possible implementations, referring to fig. 13, the key function component 240 and the force control component 210 are connected by a communication line; the force control assembly 210 obtains control strategy data from the force control assembly 210 via the communication line. When detecting that the pressing state changes, the force control component 210 controls the electromagnetic coil to apply forces in different directions and/or different magnitudes to the key according to a preset time sequence in the control strategy data.
In other words, in this embodiment, the force control policy of the force control component 210 for the controllable force key can be set, and the personalized force control policy can be configured through an external device (e.g., a computer host), and issued to the force control component 210 through the key function component 240, so that the force control component 210 realizes diversified force control, thereby better meeting the personalized requirements of the user.
In some possible implementations, the stroke detection unit 231 includes: the device comprises a light-emitting element for emitting detection light and a photosensitive element for receiving the detection light.
When the key is pressed from a first stroke section to a second stroke section and released from the second stroke section to the first stroke section, the blocking degree of the transmission path of the detection light between the light-emitting element and the photosensitive element is different. The photosensitive element detects the pressing state of the key based on the receiving state of the detection light.
In this embodiment, the magnetic assembly 220 includes an electromagnetic coil and a switch circuit composed of a plurality of switch elements, and the switch circuit is respectively connected to the force control assembly 210 and the electromagnetic coil.
The force control component 210 is configured to control the plurality of switch elements in the switch circuit to be turned on or turned off according to a preset sequence in an operating state, so as to supply currents with different directions and/or different magnitudes to the electromagnetic coil, and enable the electromagnetic coil to apply forces with different directions and/or different magnitudes to the key along the pressing direction of the key.
In some possible implementations, referring to fig. 14, the key system may further include a power detection component 250. The power detection module 250 is configured to generate a disconnection signal when detecting that the power consumed by the key system is greater than a preset threshold, where the disconnection signal is used to disconnect the power supply line of the magnetic assembly 220.
The power detection module 250 can directly control a power limit switch 260, as shown in fig. 6. The power supply line to the magnetic assembly 220 may be disconnected or restored by controlling the power limit switch 260. Referring to fig. 15, the power detection module 250 may also be connected to the key function module 240, the key function module 240 is further connected to a power limit switch 260, the power detection module 250 generates a turn-off signal to send to the key function module 240 when detecting that the consumed power is greater than a preset threshold, and the key function module 240 controls the power limit switch 260 to turn off.
Referring to fig. 16, fig. 16 is a schematic diagram of a possible detailed circuit of the key system provided in the present embodiment.
As shown in fig. 16, the pressing detection assembly may include a light emitting element D11 and a light sensing element S11.
If the key is in the first stroke segment, the detection light emitted by the light-emitting element D11 can be received by the light-sensing element S11; if the key is in the second stroke segment, the light transmission path between the light emitting element D11 and the light sensing element S11 is blocked, and the detection light emitted by the light emitting element D11 cannot be detected by the light sensing element S11. The conducting state of the photosensitive element S11 can be detected through the line Y1, so that the key is located in which stroke segment. The key function component and the force control component both acquire the pressing state of the key from the photosensitive element S11.
In order to save current, a switch element Q46 may be added in the present embodiment, and the pressing state of the key may be monitored by controlling the light emitting element D12 to emit light intermittently in a scanning manner through the signal output of the control line X1. Of course, Q46 may be eliminated and the power supply to the light emitting element D11 and the light receiving element S11 may be maintained for a long period of time.
The magnetic assembly may include a switching circuit consisting of switching elements Q42, Q43, Q44, and Q45, i.e., an electromagnetic coil K12. The switching elements Q42, Q43, Q44, and Q45 may be Metal-Oxide-Semiconductor Field Effect transistors (MOSFETs) or transistors. The switch circuit is respectively connected with the force control assembly and the electromagnetic coil. The force control assembly controls the current magnitude and direction of the electromagnetic coil by controlling the four switch elements to be switched on or switched off differently, so that the electromagnetic coil applies forces with different magnitudes or different directions to the key.
The electric energy detection component can be arranged on an energy supply circuit of the magnetic component, the electric energy detection component is connected with the key function component, and the key function component is also connected with a control end of a switch Q41 on the energy supply circuit of the magnetic component. And the key functional component disconnects the power supply of the magnetic component when the electric energy detection component detects that the electric energy consumption of the key system exceeds a threshold value.
The embodiment also provides an interactive device, which may include a key and the key system provided by the embodiment. In this embodiment, the interactive device may be a keyboard, an electronic device integrated with keys, or a key switch.
To sum up, the embodiment of the present application provides a key system and an interaction device, where the force control component is set to be in a working state when it is detected that the key is pressed from the first stroke segment to the second stroke segment, and the force control component is set to be in a dormant state when it is detected that the key is released from the second stroke segment to the first stroke segment, so that the force control component does not need to be kept in the working state all the time, and the overall energy consumption of the key system or the interaction device using the key system can be reduced.
Third embodiment
Referring to fig. 17, fig. 17 is a schematic view of a key system according to the present embodiment, which may include a press detection assembly 330, a force control assembly 310 and a magnetic assembly 320.
The pressing detection component 330 is arranged corresponding to a key to be detected, and the pressing stroke of the key comprises at least two stroke sections. The pressing stroke is the maximum moving distance of the key from being pressed to being incapable of moving continuously.
In this embodiment, the pressing detection component 330 may detect the pressing state of the key and notify the force control component 310 of the pressing state. For example, when the press detection component 330 detects that the key is in a first stroke segment, a first signal may be generated and sent to the force control component 310; when the press detection assembly 330 detects that the key is in the second stroke segment, a second signal may be generated and sent to the force control assembly 310.
In this embodiment, the force control assembly 310 may have at least two different states including an active state and a rest state. Wherein the power consumption of the force control assembly 310 in the working state is greater than the power consumption in the resting state.
The force control assembly 310 may transition between a resting state and an operating state upon the triggering of an external signal. For example, the force control component 310 may have a sleep/wake interface 311, and the sleep/wake interface 311 may be a sleep/wake interface 311 on an integrated chip, or may be a dedicated sleep/wake circuit or a sleep/wake module. The sleep-wake interface 311 may receive a signal indicative of the pressed state of the key, thereby setting the force control component 310 to an active state or a sleep state.
The force control assembly 310 is connected to the pressing detection assembly 330, and the force control assembly 310 is configured to enter a working state when the pressing state is that the key is pressed from a first stroke section to a second stroke section, and enter a dormant state when the pressing state is that the key is released from the second stroke section to the first stroke section.
The force control assembly 310 is further connected to the magnetic assembly 320, and the force control assembly 310 is configured to control the magnetic assembly 320 to apply a force to the key in the key pressing direction or apply a force away from the key pressing direction in the working state.
In other words, in the solution provided by the present embodiment, when the key is not pressed or pressed a small distance (i.e. in the first stroke segment), the force control assembly 310 is in the sleep state; when the key is pressed a large distance (i.e. in the second stroke segment), the force control assembly 310 is in an operating state and can control the magnetic assembly 320 to perform a more complicated magnetic force applying action.
Based on the above design, in the key system provided in this embodiment, the force control component 310 may be waken up to perform magnetic force control only after the key is pressed to a certain extent, so that the force control component 310 does not need to be kept in a working state with high energy consumption all the time, and the overall power requirement of the key system may be reduced.
Optionally, in a possible implementation, the force control assembly 310 is configured to immediately enter a sleep state when the pressed state is the key being released from the second stroke segment to the first stroke segment.
In other possible implementations, the force control assembly 310 is configured to delay a certain time and then enter the sleep state after the pressed state is the key being released from the second stroke section to the first stroke section. In this manner, the force control assembly 310 may be prevented from frequently switching between the sleep state and the active state when certain keys are frequently pressed and released.
Referring to fig. 18, in this implementation, the key system may further include a key function component 340, where the key function component 340 is configured to detect a pressing state of the key and send a key value corresponding to the key to another device communicatively connected to the key function component 340 according to the pressing state. For example, when the key system provided in this embodiment is applied to a keyboard, the key function component 340 may be connected to a host computer, and send the identified key value to the host computer.
In one possible implementation manner, as shown in fig. 18, the force control component 310 and the key function component 340 are respectively connected to the pressing detection component 330, and relatively independently acquire the pressing state of the key.
Alternatively, in one case, the force control component 310 and the key function component 340 may perform different logical operation processes according to the same pressing state.
For example, the force control component 310 and the key function component 340 both detect whether the key is located in the first stroke segment or the second stroke segment through the pressed state detection component. Wherein the force control assembly 310 is configured to enter an operational state when the depressed state is the key being depressed from a first segment of travel to a second segment of travel and to enter a sleep state when the depressed state is the key being released from the second segment of travel to the first segment of travel; and the key function component 340 sends the key value corresponding to the key to other devices in communication connection with the key function component 340 when detecting that the pressed state is that the key is pressed from the first travel segment to the second travel segment, and does not send the key value of the key when the pressed state is that the key is released from the second travel segment to the first travel segment.
In another case, the force control component 310 and the key function component 340 may perform different logical operation processes according to different pressing states.
For example, referring to fig. 19, the pressing detection assembly 330 may also include a stroke detection unit 331 and a conduction detection unit 332. The force control component 310 is connected to the stroke detection unit 331, and the pressed state obtained by the force control component 310 may be whether the key detected by the stroke detection unit 331 is located in a first stroke section or a second stroke section; the key function component 340 is connected to the conduction detection unit 332, and the pressed state obtained by the key function component 340 may be whether the key detected by the conduction detection unit 332 is fully pressed. In other words, the force control component 310 may wake up after the key is pressed for a certain distance and start magnetic force control, and the key function component 340 needs to acquire the key value of the key after the key is fully pressed and send the key value to other devices.
In another possible implementation manner, referring to fig. 20, the key function component 340 may also be connected to the press detection component 330 and the force control component 310, respectively, and the key function component 340 is further configured to send the press state acquired from the press detection component 330 to the force control component 310.
For example, when the key function component 340 acquires that the key is located in the second travel segment through the pressing detection component 330, the key function component 340 sends a corresponding key value and also sends information to the force control component 310 through the communication line, so that the force control component 310 also knows that the key is located in the second travel segment, and the force control component 310 enters the working state and performs magnetic force control.
Based on the above design, in the key system provided in this embodiment, the control action of the force control component 310 and the recognition action of the key function component 340 are relatively separated, that is, when a problem occurs in the force control component 310, the function of the key function component 340 is not affected. Therefore, the working reliability and fault-tolerant capability of the whole key system are improved.
In some possible implementations, the magnetic assembly 320 is configured to not apply force to the keys when the force control assembly 310 is in the resting state. In other words, the magnetic assembly 320 does not exert a magnetic force like a key when the key is in the first segment of travel. In this case, a force directed away from the direction of depression of the key may be applied to the key by a spring or reed structure in the mechanical structure of the key itself.
In other possible implementations, the magnetic assembly 320 is configured to apply a fixed force to the key in a direction away from the key press when the force control assembly 310 is in the sleep state. In other words, when the key is in the first stroke segment, the magnetic assembly 320 applies a fixed force to the key in a direction away from the key depression direction. In this case, only a fixed magnetic force needs to be applied to the key when the key is in the first stroke segment, and therefore the force control component 310 does not need to be involved, and the force control component 310 can be kept in a dormant state; when the key is in the second stroke section, the force control component 310 may be awakened to perform the processing of the magnetic control logic due to the need of performing the complicated magnetic control.
In this embodiment, the magnetic assembly 320 includes an electromagnetic coil and a switch circuit composed of a plurality of switch elements, and the switch circuit is respectively connected to the force control assembly 310 and the electromagnetic coil.
The force control component 310 is configured to control the plurality of switch elements in the switch circuit to be turned on or turned off according to a preset sequence in an operating state, so as to supply currents with different directions and/or different magnitudes to the electromagnetic coil, and enable the electromagnetic coil to apply forces with different directions and/or different magnitudes to the key along the pressing direction of the key.
Referring to fig. 21, in some possible implementations, the key system may further include a power detection component 350; the power detection component 350 is configured to generate a disconnection signal when detecting that the power consumed by the key system is greater than a preset threshold, where the disconnection signal is used to disconnect the power supply line of the magnetic component 320.
The power detection component 350 can directly control a power limit switch 360, as shown in fig. 6. The power supply line of the magnetic assembly 320 can be cut off or restored by controlling the power limit switch 360. Referring to fig. 22, the power detection component 350 may also be connected to the key function component 340, the key function component 340 is further connected to a power limit switch 360, the power detection component 350 generates a turn-off signal to send to the key function component 340 when detecting that the consumed power is greater than a preset threshold, and the key function component 340 controls the power limit switch 360 to turn off.
In some possible implementations, the detecting the portion of the key that is in the first or second stroke segment by the press detection component 330 includes: the device comprises a light-emitting element for emitting detection light and a photosensitive element for receiving the detection light.
When the key is pressed from a first stroke section to a second stroke section and released from the second stroke section to the first stroke section, the blocking degree of the transmission path of the detection light between the light-emitting element and the photosensitive element is different. The photosensitive element detects the pressing state of the key based on the receiving state of the detection light.
The embodiment also provides an interactive device, which may include a key and the key system provided by the embodiment. In this embodiment, the interactive device may be a keyboard, an electronic device integrated with keys, or a key switch.
To sum up, the embodiment of the present application provides a key system and an interaction device, where the force control component is set to be in a working state when it is detected that the key is pressed from the first stroke segment to the second stroke segment, and the force control component is set to be in a dormant state when it is detected that the key is released from the second stroke segment to the first stroke segment, so that the force control component does not need to be kept in the working state all the time, and the overall energy consumption of the key system or the interaction device using the key system can be reduced.
Fourth embodiment
Referring to fig. 23, fig. 23 is a schematic view illustrating a processing flow of a scanning cycle during a key pressing process.
Step S111, detecting that the current key is pressed in this period.
In this embodiment, the detecting that the key is pressed is detecting that the key is pressed from the first stroke segment to the second stroke segment.
Step S112, detecting whether the upward acting force function is activated.
In this embodiment, the upward acting force is a force applied in a direction away from the key press.
If the function of applying force upwards is started, the process goes to step S130;
if the upward force application function is not enabled, the process proceeds to step S140.
In step S113, it is detected whether or not the holding time for applying the upward force has been reached.
If not, go to step S114;
if yes, the process proceeds to step S115.
Step S114, controlling the magnetic assembly to apply an upward acting force in the current scanning period.
Step S115, it is detected whether the downward force application function is activated.
In this embodiment, the upward acting force is a force applied in the direction of pressing the key.
If the function of applying the acting force downwards is started, the step S116 is executed;
if the force-down function is not activated, the process proceeds to step S118.
In step S116, it is detected whether the holding time for applying the downward force is reached.
If not, go to step S117;
if yes, the process proceeds to step S118.
Step S117, controlling the magnetic assembly to apply a downward force in the current scanning period.
Step S118, whether the function of keeping the upward acting force after the pressing state is finished is detected.
If so, go to step S119;
if not, the process proceeds to step S121.
In step S119, it is checked whether or not the holding time for retaining the upward acting force is reached.
If not, go to step S120;
if yes, the process proceeds to step S121.
Step S120, controlling the magnetic assembly to apply an upward acting force in the current scanning period.
And step S121, controlling the magnetic assembly to cancel the acting force.
Referring to fig. 24, fig. 24 is a schematic view illustrating a processing flow of a scanning cycle in a key release process.
Step S210, detecting the release of the current key in the present period.
In step S220, it is detected whether the holding time of the upward acting force is reached.
If not, go to step S221;
if yes, the process proceeds to step S222.
Step S221, controlling the magnetic assembly to apply an upward acting force in the current scanning period.
And step S222, controlling the magnetic assembly to cancel the acting force.
To sum up, the embodiment of the present application provides a key system and an interaction device, where the force control component is set to be in a working state when it is detected that the key is pressed from the first stroke segment to the second stroke segment, and the force control component is set to be in a dormant state when it is detected that the key is released from the second stroke segment to the first stroke segment, so that the force control component does not need to be kept in the working state all the time, and the overall energy consumption of the key system or the interaction device using the key system can be reduced.
The above description is only for various embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present application, and all such changes or substitutions are included in the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (17)

1. A key system is characterized by comprising a first pressing detection assembly, a key function assembly, a force control assembly and a magnetic assembly;
the first pressing detection assembly is connected with the force control assembly and used for detecting the pressing state of at least one part of keys and sending the pressing state to the force control assembly;
the force control assembly is respectively connected with the key function assembly, the magnetic assembly and the first pressing detection assembly, and is configured to control the magnetic assembly to apply force along the key pressing direction or apply force deviating from the key pressing direction to the key according to the pressing state detected by the first pressing detection assembly and transmit the pressing state to the key function assembly;
the key function component is configured to send the key value corresponding to the key to other equipment connected with the key function component according to the received pressing state.
2. The key system of claim 1, wherein the force control component and the key function component are connected by a serial communication interface; and the force control assembly sends the detected pressing state to the key function assembly in a serial communication mode.
3. The keying system of claim 2, wherein said keying system comprises a plurality of said force control assemblies;
the serial communication interfaces of the force control assemblies are connected with the communication interfaces of the key function assemblies through communication buses; or the serial communication interfaces of the force control assemblies are respectively connected with the key function assembly through independent communication lines.
4. The key system of claim 1, wherein the key functional assembly comprises a plurality of first IO interfaces, the force control assembly comprises a plurality of second IO interfaces corresponding to the plurality of first IO interfaces, respectively, and the plurality of first IO interfaces are connected to the plurality of second IO interfaces through IO communication lines, respectively; and the key functional component acquires the pressing state from the force control component through the IO communication line.
5. The key system according to claim 4, wherein the force control assembly further includes a plurality of third IO interfaces, the plurality of third IO interfaces are connected to the plurality of first press detection assemblies through a scanning circuit, and the plurality of third IO interfaces acquire the press states acquired by the first press detection assemblies through scanning;
the key function component acquires the pressing state from the key function component in a scanning mode;
the scanning clock domain of the key function component and the scanning clock domain of the force control component are relatively independent.
6. The key system according to claim 5, wherein the force control component comprises a register component, and the register component is configured to record the pressing states obtained through scanning of the plurality of third IO interfaces, and transmit the pressing states recorded in the middle of the scanning process of the key function component to the key function component.
7. The key system according to claim 4, further comprising a second press detection component for detecting a press status of at least a portion of the keys;
the key function component comprises a fourth IO interface, the fourth IO interface is connected with the second pressing detection component, and the key function component acquires the pressing state acquired by the second pressing detection component through the fourth IO interface.
8. A key system is characterized by comprising a pressing detection assembly, a key function assembly, a force control assembly and a magnetic assembly;
the pressing detection assembly is connected with the force control assembly and used for detecting the pressing state of the key and sending the pressing state to the force control assembly;
the force control assembly is respectively connected with the magnetic assembly and the pressing detection assembly, and the force control assembly is configured to control the magnetic assembly to apply force along the pressing direction of the key or apply force away from the pressing direction of the key to the key according to the pressing state detected by the pressing detection assembly;
the key function component is connected with the pressing detection component and used for sending the key value corresponding to the key to other equipment connected with the key function component according to the received pressing state.
9. The key system according to claim 8, wherein said key comprises at least two pressing strokes, and said pressing detection component comprises a stroke detection unit;
the stroke detection unit is configured to detect a pressed state of the key, the pressed state including the key being pressed from a first stroke section to a second stroke section or released from the second stroke section to the first stroke section;
the key function component and the force control component are respectively connected with the stroke detection unit to acquire the pressing state acquired by the stroke detection unit.
10. The key system according to claim 9, wherein said key function unit is connected to a plurality of said stroke detecting units through a scanning circuit; the force control assembly obtains a plurality of pressing states collected by the stroke detection units based on scanning signals output by the key function assembly.
11. The key system according to claim 8, wherein said key comprises at least two sections of pressing strokes, and said pressing detection assembly comprises a stroke detection unit and a conduction detection unit;
the stroke detection unit is configured to detect a first pressed state of the key, the first pressed state including the key being pressed from a first stroke section to a second stroke section or released from the second stroke section to the first stroke section; the force control assembly is connected with the stroke detection unit to acquire the first pressing state acquired by the stroke detection unit;
the conduction detection unit is configured to detect a second pressing state of the key, wherein the second pressing state comprises that the key is pressed to a conduction trigger point which is positioned at one end of a pressing stroke of the key, which is far away from a pressing starting point; the key function component is connected with the conduction detection unit to acquire a second pressing state acquired by the conduction detection unit.
12. The key system according to claim 11, wherein said force control component obtains said first pressed state from said plurality of stroke detection units by means of scan detection, and said key function component obtains said second pressed state from said plurality of conduction detection units by means of scan detection; wherein, the force control component and the key function component scan clock domains are relatively independent.
13. A key system is characterized by comprising a pressing detection assembly, a force control assembly and a magnetic assembly;
the pressing detection assembly is connected with the force control assembly and is used for detecting the pressing state of the key and sending the pressing state to the force control assembly, and the pressing stroke of the key comprises at least two stroke sections;
the force control assembly is connected with the pressing detection assembly, the force control assembly is configured to enter a working state when the pressing state is that the key is pressed from a first stroke section to a second stroke section, and enter a dormant state after the pressing state is that the key is released from the second stroke section to the first stroke section; the power consumption of the force control assembly in the working state is larger than that in the dormant state;
the magnetic assembly is connected with the force control assembly, and the force control assembly is used for controlling the magnetic assembly to apply force along the key pressing direction or apply force deviating from the key pressing direction to the key in the working state.
14. The key system of claim 13, wherein the key system further comprises a key function component;
the key function component is configured to detect a pressing state of the key and send a key value corresponding to the key to other equipment in communication connection with the key function component according to the pressing state.
15. The key system according to claim 14, wherein said force control component and said key function component are respectively connected to said pressing detection component for obtaining pressing states of said keys relatively independently.
16. The key system according to claim 14, wherein said key function component is connected to said press detection component and said force control component, respectively, said key function component further configured to send said press status obtained from said press detection component to said force control component.
17. An interactive device, characterized in that the interactive device comprises keys and a key system according to any of claims 1-16.
CN202010408266.5A 2020-05-14 2020-05-14 Key system and interaction device Pending CN111596750A (en)

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