WO2021228043A1

WO2021228043A1 - Press button system and interactive device

Info

Publication number: WO2021228043A1
Application number: PCT/CN2021/092808
Authority: WO
Inventors: 杨晓锋
Original assignee: 东莞璟阳电子科技有限公司
Priority date: 2020-05-14
Filing date: 2021-05-10
Publication date: 2021-11-18
Also published as: CN111596750A

Abstract

Provided are a press button system and an interactive device. The press button system comprises a pressure detection assembly, a press button functional assembly, a force-control assembly, a magnetic force assembly, etc. By means of the cooperation between the pressure detection assembly, the press button functional assembly, the force-control assembly, the magnetic force assembly, a press button system and an interactive device that can control the force and identify a button value for a force-control press button can be provided.

Description

Button system and interactive device

Cross-references to related applications

This disclosure claims the priority of a Chinese patent application filed with the Chinese Patent Office on May 14, 2020, with an application number of 202010408266.5 and titled "Key System and Interactive Device", the entire content of which is incorporated into this disclosure by reference.

Technical field

The present disclosure relates to the technical field of interactive equipment, and in particular to a key system and an interactive device.

Background technique

The key is a very common interactive input device. For a frequently used key input device (such as a keyboard), the touch of the key is very important to the user. For example, mechanical keyboards are deeply loved by users because of their unique sense of percussive paragraphs.

In the key design schemes of some interactive input devices, by controlling the electromagnetic elements to apply forces in different directions to the keys, the keys can be applied to the user's fingers with different feedback forces during a single press, so that the pressing process is hierarchical A sense of percussion paragraphs.

However, the prior art lacks a key system that can effectively control the controllable force keys and recognize key values.

Summary of the invention

In order to solve at least one problem in the prior art, the present disclosure provides a button system and an interactive device for controlling a controllable force button.

One of the objectives of the present disclosure is to provide a button system, including a first pressing detection component, a button function component, a force control component, and a magnetic component;

The first pressing detection component is connected to the force control component, and is configured to detect the pressing state of at least a part of the keys and send it to the force control component;

The force control component is respectively connected with the button function component, the magnetic component and the first pressing detection component, and the force control component is configured to control the pressing state according to the pressing state detected by the first pressing detection component. The magnetic component applies a force along the button pressing direction or a force away from the button pressing direction to the button, and transmits the pressing state to the button function component;

The key function component is configured to send the key value corresponding to the key to other devices connected to the key function component according to the received pressing state.

In some possible implementations, the force control component is connected to the serial communication interface of the key function component; the force control component sends the detected pressing state to the key function component through serial communication .

In some possible implementation manners, the button system includes a plurality of the force control components;

The serial communication interfaces of a plurality of the force control components are connected to the communication ports of the key function components through a communication bus; or the serial communication interfaces of a plurality of the force control components are connected to the key function through independent communication lines. Component connection.

In some possible implementations, the button function component includes multiple first IO interfaces, the force control component includes multiple second IO interfaces corresponding to the multiple first IO interfaces, and the multiple The first IO interfaces are respectively connected to the plurality of second IO interfaces through an IO communication line; the key function component obtains the pressing state from the force control component through the IO communication line.

In some possible implementations, the force control component further includes a plurality of third IO interfaces, and the plurality of third IO interfaces are connected to the plurality of first pressing detection components through a scanning circuit connection, and the multiple A third IO interface acquires the pressing state collected by the first pressing detection component by scanning;

The key function component acquires the pressing state from the key function component by scanning;

The scan clock domain of the key function component is relatively independent of the scan clock domain of the force control component.

In some possible implementations, the force control component includes a registering component configured to record the pressing state obtained through scanning of the plurality of third IO interfaces, and to record the pressing state in the scanning of the key function component The pressing state recorded during the process is transferred to the key function component.

In some possible implementation manners, the button system further includes a second pressing detection component configured to detect the pressing state of at least a part of the buttons;

The key function component further includes a fourth IO interface, the fourth IO interface is connected to the second press detection component, and the key function component obtains information from the second press detection component through the fourth IO interface. The collected pressing state.

In some possible implementation manners, the magnetic component 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 component and the electromagnetic coil;

The force control component is configured to control the switching elements in the switching circuit to be closed or open according to a preset sequence in a working state, so as to deliver currents of different directions and/or different magnitudes to the electromagnetic coil, The electromagnetic coil is made to apply forces of different directions and/or different magnitudes along the pressing of the key to the key.

In some possible implementations, the button system further includes a power detection component; the power detection component is configured to generate a disconnection signal when it detects that the power consumption of the button system is greater than a preset threshold, the disconnection signal It is configured to disconnect the power supply line of the magnetic component.

The embodiments of the present disclosure provide a button system and an interactive device. The force control component controls the force applied by the magnetic component to the button according to the detected pressing state of the button, and sends the button state to the device configured to perform key value recognition and other interactions. The keyboard function component of device communication can realize the force control and key value recognition of the controllable force keys.

Another object of the present disclosure is to provide a button system, including a pressing detection component, a button function component, a force control component, and a magnetic component;

The pressing detection component is connected to the force control component, and is configured to detect the pressing state of the button and send it to the force control component;

The force control component is respectively connected with the magnetic component and the pressing detection component, and the force control component is configured to control the magnetic component to apply the pressing along the key to the key according to the pressing state detected by the pressing detection component. Directional force or force applied away from the button pressing direction;

The key function component is connected to the pressing detection component, and the key function component is configured to send the key value corresponding to the key to other devices connected to the key function component according to the received pressing state.

In some possible implementation manners, the button 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 pressing state of the key, the pressing state including the key being pressed from a first stroke section to a second stroke section or released from the second stroke section to a first stroke section ；

The key function component and the force control component are respectively connected with the stroke detection unit to obtain the pressing state collected by the stroke detection unit.

In some possible implementation manners, the key function component is connected to a plurality of the stroke detection units through a scanning circuit; the force control component obtains a plurality of the strokes based on the scan signal output by the key function component The pressing state collected by the detection unit.

In some possible implementation manners, the button includes at least two 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 pressing state of the key, the first pressing 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 segment; the force control component is connected to the stroke detection unit to obtain the first pressing state collected by the stroke detection unit;

The conduction detection unit is configured to detect a second pressing state of the key, and the second pressing state includes the key being pressed to a conduction trigger point, and the conduction trigger point is located in the pressing stroke of the key The key function component is connected to the conduction detection unit to obtain the second pressing state collected by the conduction detection unit.

In some possible implementations, the force control component acquires the first pressing state from a plurality of stroke detection units by scanning detection, and the key function component acquires the first pressing state from a plurality of guides by scanning detection. The second pressing state is acquired by a detection unit; wherein the scanning clock domain of the force control component and the key function component are relatively independent.

In some possible implementations, the button function component and the force control component are connected through a communication line; the force control component obtains control strategy data from the force control component through the communication line;

When the force control component detects a change in the pressing state, it controls the electromagnetic coil to apply different forces and/or different directions along the pressing of the button to the button according to the preset timing in the control strategy data. The size of the force.

The embodiments of the present disclosure provide a key system and an interactive device. By connecting the force control component and the key function component to the press detection component, the force control component and the keyboard function component can obtain the key state from the press detection component, and according to The key states respectively perform force control and key value recognition actions, thereby providing a key system that can realize the force control and key value recognition of the controllable force keys.

Another object of the present disclosure is to provide a button system, including a pressing detection component, a force control component, and a magnetic component;

The pressing detection component is connected to the force control component and is configured to detect the pressing state of the button and send it to the force control component, and the pressing stroke of the button includes at least two stroke segments;

The force control component is connected to the pressing detection component, and the force control component is configured to enter the working state when the pressing state is that the key is pressed from the first stroke section to the second stroke section, and The state is that the button enters the dormant state after being released from the second stroke section to the first stroke section; wherein the power consumption when the force control component is in the working state is greater than the power consumption when in the dormant state;

The magnetic component is connected to the force control component, and the force control component is configured to control the magnetic component to apply a force along the button pressing direction to the button or apply a force away from the button in the working state Directional force.

In some possible implementation manners, the button system further includes a button function component;

The key function component is configured to detect the pressed state of the key, and send the key value corresponding to the key to other devices communicatively connected with the key function component according to the pressed state.

In some possible implementations, the force control component and the button function component are respectively connected to the button, and the pressing state of the button is obtained relatively independently.

In some possible implementation manners, the button function component is further connected to the force control component, and the button function component is further configured to send the pressing state to the force control component.

In some possible implementation manners, the magnetic component is configured to apply a fixed force away from the pressing direction of the button to the button when the force control component is in a dormant state, or not to apply a force to the button.

The embodiments of the present disclosure provide a button system and an interactive device, by setting the force control component to a working state when it is detected that the button is pressed from a first stroke section to a second stroke section, and when it is detected that the button is released from the second stroke section The force control component is set to the dormant state at the first stroke section, so that the force control component does not need to be kept in the working state all the time, and the overall power demand of the key system or the interactive device using the key system can be reduced.

Another object of the present disclosure is to provide an interactive device, which includes a button and the button system provided in the present disclosure.

Description of the drawings

In order to explain the technical solutions of the embodiments of the present disclosure more clearly, the following will briefly introduce the drawings that need to be used in the embodiments. It should be understood that the following drawings only show certain embodiments of the present disclosure, and therefore do not It should be regarded as a limitation of the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative work.

FIG. 1 is one of the schematic diagrams of a key system provided by an embodiment of the disclosure;

FIG. 2 is a schematic diagram of a key stroke provided by an embodiment of the disclosure;

3-22 are other schematic diagrams of the button system provided by the embodiments of the disclosure;

FIG. 23 and FIG. 24 are schematic diagrams of the control flow of the button system provided by the embodiments of the disclosure.

Detailed ways

In order to make the objectives, technical solutions, and advantages of the embodiments of the present disclosure clearer, the technical solutions in the embodiments of the present disclosure will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments These are a part of the embodiments of the present disclosure, but not all of the embodiments. The components of the embodiments of the present disclosure generally described and illustrated in the drawings herein may be arranged and designed in various different configurations.

Therefore, the following detailed description of the embodiments of the present disclosure provided in the accompanying drawings is not intended to limit the scope of the claimed present disclosure, but merely represents selected embodiments of the present disclosure. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present disclosure.

It should be noted that similar reference numerals and letters indicate similar items in the following figures. Therefore, once a certain item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

In the description of the present disclosure, it should be noted that the terms “first”, “second”, “third”, etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

In the description of the present disclosure, it should also be noted that, unless otherwise clearly defined and defined, the terms “setup”, “installation”, “connected”, and “connected” should be interpreted broadly. For example, they may be fixed connections. It can also be detachably connected or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above-mentioned terms in the present disclosure can be understood in specific situations.

The first embodiment

Please refer to FIG. 1, which is a schematic diagram of a key system provided by this embodiment. The case system 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 provided 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 the pressing state of at least a part of the keys and send it 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 a possible implementation manner, the pressing stroke of the key includes at least two stroke segments. The pressing stroke is the maximum moving distance that the button has never been pressed until it is pressed to the point where it cannot continue to move. For example, referring to FIG. 2, the maximum pressing stroke of the button is D, and the pressing stroke can be at least divided into a first stroke segment d1 and a second stroke segment d2.

In this embodiment, the first pressing detection component 130 may detect the pressing state of the button, and notify the force control component 110 of the pressing state. For example, when the first pressing detection component 130 detects that the button is in the first stroke segment, a first signal may be generated and sent to the force control component 110; when the first pressing detection component 130 detects all the keys When the button is in the second stroke segment, a second signal can be generated and sent to the force control component 110.

Wherein, the first signal or the second signal may be a digital signal or an analog level signal, or one of the first signal and the second signal may also be detected by the first press The component 130 does not send out anything to indicate.

In some implementations, the first stroke section d1 may have a certain length. In this implementation manner, it can be considered that the key has entered the second travel segment from the first travel segment after being pressed for a certain distance.

In other implementations, the first stroke d1 may be only one point or only a very short length. In this implementation manner, it can be considered that as long as the button is pressed, it enters the second travel segment from the first travel segment.

The force control component 110 is respectively connected with the button function component 140, the magnetic component 120 and the first pressing detection component 130, and the force control component 110 is configured to detect according to the first pressing detection component 130 The pressing state controls the magnetic component 120 to apply a force along the button pressing direction or a force away from the button pressing direction to the button, and transmit the pressing state to the button function component 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 can be connected to a computer host, and the identified key value can be sent to the computer host.

Based on the above design, the button system provided in this embodiment can control the force applied by the magnetic component 120 to the button according to the detected button pressing state, and send the button state to the keyboard function configured to perform key value recognition and communicate with other devices. Components, which can realize the force control and key value recognition of the controllable force keys.

In the case system for controlling the controllable force keys provided by this embodiment, an existing key function chip that already has a certain function can be used as the key function component 140, and the existing functions of the key function chip can be maintained. It is only required that the force control component 110 transmits the button state to the button function chip.

That is to say, on the one hand, the solution provided by this embodiment is used to transform a general button control system into a case system that controls a controllable force button on the basis of using the existing button function component 140, so that it can be To a certain extent, the production cost of the controllable force button system is solved. On the other hand, in the solution provided by this embodiment, the key function component 140 and the force control component 110 are relatively functionally decoupled, which provides higher convenience and flexibility for the hardware and software maintenance of the key system.

In a possible implementation manner, the force control component 110 is connected with the serial communication interface of the key function component 140. 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 a plurality of pressing states collected by the first pressing detection by scanning detection, and then convert these pressing states into digital serial signals, and send them to the serial communication interface. Button function component 140.

Optionally, in this embodiment, the button system includes a plurality of the force control components 110.

Referring to FIG. 3a, a plurality of serial communication interfaces of the force control component 110 can be connected to the communication port of the key function component 140 through a communication bus. Referring to FIG. 3b, the serial communication interfaces of the multiple force control components 110 are respectively connected to the key function component 140 through independent communication lines.

Based on the above design, in the solution provided in this embodiment, a serial communication line interface is used to realize the transfer of the button state between the force control component 110 and the button function component 140, which can reduce the force control component 110. The wiring difficulty and cost of the hardware communication line between the key function component 140 and the key function component 140 are not limited.

In some possible implementations, the key function component 140 may also obtain control strategy data from the force control component 110 through the serial communication line interface. When the force control component 110 detects a change in the pressing state, it controls the electromagnetic coil to apply force and/or force in different directions along the pressing of the button to the button according to the preset timing in the control strategy data. Different sizes of force.

In other words, in this embodiment, the force control component 110’s force control strategy for the controllable force button can be set, and a personalized force control strategy can be configured through an external device (such as a computer host), and through the button The functional component 140 is delivered to the force control component 110, so that the force control component 110 realizes diversified force control, which is more in line with the individual needs of the user.

In another possible implementation manner, referring to FIG. 4, the button function component 140 includes a plurality of first IO interfaces, and the force control component 110 includes a plurality of first IO interfaces corresponding to the plurality of first IO interfaces. A second IO interface, the plurality of first IO interfaces are respectively connected to the plurality of second IO interfaces through an IO communication line; the key function component 140 is obtained from the force control component 110 through the IO communication line The pressed state.

Based on the above design, in the button system provided in this embodiment, the existing button scanning function of the button function component 140 can be used to directly connect the scanning IO port of the button function component 140 to the force control component 110. It is necessary to greatly adjust the scanning function of the key function component 140 to provide a keyboard system that can control the strength of the keys and recognize the key values.

Optionally, in this embodiment, the force control component 110 further includes a plurality of third IO interfaces, and the plurality of third IO interfaces are connected to the plurality of first pressing detection components 130 through a scanning circuit. The plurality of third IO interfaces acquire the pressing state collected by the first pressing detection component 130 in a scanning manner.

The key function component 140 acquires the pressing state from the key function component 140 by scanning. The scan clock domain of the key function component 140 and the scan clock domain of the force control component 110 are relatively independent.

In other words, the force control component 110 can independently perform the action of scanning to obtain the pressing state, and then obtain the scanning signal of the key function component 140 through the second IO interface. It is sufficient that the pressing state is transmitted to the key function component 140.

In this way, the scanning actions of the force control component 110 and the key function component 140 can be executed in different clock domains, thereby further decoupling the force control component 110 and the key function component 140, reducing the There is a synchronization requirement between the force control component 110 and the button function component 140.

Optionally, the force control component 110 includes a registering component configured to record the pressing state obtained through scanning of the plurality of third IO interfaces, and in the middle of the scanning process of the key function component 140 The recorded pressing state is transmitted to the key function component 140. Wherein, the register component may consist of multiple registers, or consist of other transient storage elements or non-volatile storage elements.

In a possible implementation manner, referring to FIG. 5, the button system further includes a second pressing detection component 170 configured to detect the pressing state of at least a part of the buttons.

The key function component 140 further includes a fourth IO interface, the fourth IO interface is connected to the second press detection component 170, and the key function component 140 obtains the information from the second press detection component 170 through the fourth IO interface. The pressing state collected by the pressing detection component 170.

In other words, in this embodiment, among the multiple keys managed by the key system, some keys can be detected by the force control chip for key status, and the key status can be sent to the key function component 140. For this part of the keys, the force control chip can control the corresponding magnetic component 120 to apply different forces to the keys according to the state of the keys.

And there are some keys that can be directly detected by the keyboard function components, and this part of the keys may not be controllable keys.

For example, the keys on the keyboard that are used frequently or have a greater impact on the user's hand feeling can be set as controllable keys. Correspondingly, the first pressing detection component 130 is provided, and the force control chip detects the key state and the force control action, and transmits the key state to the keyboard function component.

As for the keys on the keyboard that are not frequently used or have little effect on the user's hand feeling, they do not need to be set as controllable keys, and the key function chip directly detects the pressing state of these keys through the existing scanning connection method.

Based on the above design, the design of the button system can be made more flexible, and the manufacturing cost and software control cost of the button system hardware can be controlled more flexibly.

In this embodiment, the magnetic component 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 component 110 and the electromagnetic coil.

The force control component 110 is configured to control the switching elements in the switching circuit to be turned on or off according to a preset timing in the working state, so as to deliver currents of different directions and/or different sizes to the electromagnetic coil , Enabling the electromagnetic coil to apply forces of different directions and/or different magnitudes of pressing along the key to the key.

Please refer to FIG. 6, in some possible implementation manners, the button system may further include a power detection component 150. The power detection component 150 is configured to generate a disconnection signal when it is detected that the power consumption of the key system is greater than a preset threshold, and the disconnection signal is configured to disconnect the power supply line of the magnetic component 120.

Wherein, the electric energy detection component 150 can directly control an electric energy limit switch 160, as shown in FIG. 6. By controlling the electric energy limit switch 160, the power supply circuit of the magnetic component 120 can be cut off or restored. Referring to FIG. 7, the power detection component 150 can also be connected to the key function component 140, and the key function component 140 is then connected to a power limit switch 160. The power detection component 150 detects that the power consumption is greater than When the threshold is preset, a disconnection signal is generated and sent to the key function component 140, and then the key function component 140 controls the power limit switch 160 to be turned off.

In some possible implementations, the part of the first press detection component 130 configured to detect whether the button is in the first stroke section or the second stroke section includes: a light emitting element configured to emit detection light and a light emitting element configured to receive The photosensitive element for detecting light.

When the button is pressed from the first stroke section to the second stroke section and when the button is released from the second stroke section to the first stroke section, the detection light is detected between the light-emitting element and the photosensitive element. The degree of occlusion of the transmission path is different. The photosensitive element detects the pressing state of the key based on the receiving state of the detection light.

Please refer to FIG. 8a and FIG. 8b. This embodiment provides two possible detailed circuit diagrams of the key system.

As shown in FIG. 8a and FIG. 8b, the first pressing detection assembly may include a light-emitting element D11 and a photosensitive element S11.

If the button is in the first stroke section, the detection light emitted by the light-emitting element D11 can be received by the photosensitive element S11; if the button is in the second stroke section, the light transmission path between the light-emitting element D11 and the photosensitive element S11 is blocked , The detection light emitted by the light-emitting element D11 cannot be detected by the light-receiving element S11. The conduction state of the photosensitive element S11 can be detected through the line Y1, so as to know in which stroke section the button is located.

In order to save current, a switch element Q46 can be added in this embodiment. By controlling the signal output of the line X1, the light emitting element D12 can be controlled to emit light intermittently in a scanning manner to monitor the pressing state of the button. Of course, Q46 can also be eliminated, and the power supply of the light-emitting element D11 and the photosensitive element S11 can be maintained for a long time.

The magnetic component may include a switching circuit composed of switching elements Q42, Q43, Q44, and Q45, that is, an electromagnetic coil K12. The switching elements Q42, Q43, Q44, and Q45 may be Metal-Oxide-Semiconductor Field-Effect Transistor (MOSFET) or triode. The switch circuit is respectively connected with the force control component and the electromagnetic coil. The force control component controls the different on or off combinations of the four switching elements to control the magnitude and direction of the current of the electromagnetic coil, so that the electromagnetic coil applies forces of different sizes or directions to the keys.

The power detection component may be arranged on the power supply line of the magnetic component, the power detection component is connected to the key function component, and the key function component is also connected to the control terminal of the switch Q41 on the power supply line of the magnetic component connect. The key function component disconnects the power supply of the magnetic component when the power detection component detects that the power consumption of the key system exceeds a threshold value.

The pressing state of the button is obtained by the force control component and the photosensitive element S11. As shown in Figure 8a, the key function component and the force control component can be connected through a serial communication line, and the key function component obtains the key state from the force control component through the serial communication line. As shown in Figure 8b, the key function component and the force control component can be connected through multiple IO scan lines, and the key function component uses the scanning detection method to obtain the key state from the force control component through the IO scan line.

This embodiment also provides an interactive device, which may include a button and the button system provided in this 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 embodiments of the present disclosure provide a button system and an interactive device, by setting the force control component to the working state when it is detected that the button is pressed from the first stroke section to the second stroke section, and when it is detected that the button is pressed from When the second stroke segment is released to the first stroke segment, the force control component is set to a dormant state, so that the force control component does not need to be kept in a working state all the time, and the overall energy consumption of the key system or the interactive device using the key system can be reduced.

Second embodiment

Please refer to FIG. 9, which is a schematic diagram of a key system provided by this embodiment. The key system may include a pressing detection component 230, a key function component 240, a force control component 210, and a magnetic component 220.

The pressing detection component 230 is connected to the force control component 210 and is configured to detect the pressing state of the button and send it to the force control component 210. Optionally, the pressing state may include the key being pressed, or the key being pressed to a certain degree.

The force control component 210 is respectively connected to the magnetic component 220 and the pressing detection component 230, and the force control component 210 is configured to control the magnetic component 220 to the button according to the pressing state detected by the pressing detection component 230. Applying a force along the key pressing direction or applying a force away from the key pressing direction.

The key function component 240 is connected to the press detection component 230, and the key function component 240 is configured to send the key value corresponding to the key to the other connected to the key function component 240 according to the received pressing state. equipment. For example, when the key system provided in this embodiment is applied to a keyboard, the key function component 240 can be connected to the computer host, and the identified key value can be sent to the computer host.

In other words, in this embodiment, the force control component 210 and the key function component 240 are both connected to the press detection component 230, so both the force control component 210 and the key function component 240 can be downloaded from the The pressing detection component 230 obtains the pressing state of the button.

Based on the above design, on the one hand, this embodiment provides a method that can simultaneously realize the force control of the controllable force key and the key value recognition work. On the other hand, in the button system provided in this embodiment, the action of the button function component 240 to obtain the button state may not depend on the force control component 210, and when the force control component 210 fails The key function component 240 can still perform key value recognition normally, thereby improving the fault tolerance and reliability of the entire key system.

In some possible implementations, the pressing detection component 230 is arranged corresponding to the key to be detected, and the pressing stroke of the key includes at least two stroke segments. 10, the pressing detection component 230 may include a stroke detection unit 231, and the stroke detection unit 231 is configured to detect a pressing state including the button being pressed from the first stroke section to the second stroke section or from the The second stroke is released to the first stroke.

Optionally, the key function component 240 is connected to a plurality of the stroke detection units 231 through a scanning circuit. The force control component 210 obtains a plurality of pressing states collected by the stroke detection unit 231 based on the scan signal output by the key function component 240.

For example, referring to FIG. 11, the key function component 240 obtains the pressing state of each key in the keyboard array by means of row and column scanning detection. The key function component 240 sends out a key row scan for a certain row, and the row scan signal will be Transmitted to a certain line of the scanning circuit. When a key on the row is pressed down, the 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, the synchronization response of the scanning signal can be guaranteed, and the conflict between the force control component 210 and the keyboard function component signal scanning detection can be avoided.

In other possible implementation manners, referring to FIG. 12, the button includes at least two pressing strokes, and the pressing detection component 230 includes a stroke detection unit 231 and a conduction detection unit 232.

The stroke detection unit 231 is configured to detect a first pressing state of the key, the first pressing state including the key being pressed from a first stroke to a second stroke or released from the second stroke To the first segment. The force control component 210 is connected to the stroke detection unit 231 to obtain the first pressing state collected by the stroke detection unit 231.

The conduction detection unit 232 is configured to detect a second pressing state of the key, and the second pressing state includes the key being pressed to a conduction trigger point, and the conduction trigger point is located when the key is pressed. The end of the stroke away from the starting point of the compression. The key function component 240 is connected to the conduction detection unit 232 to obtain the second pressing state collected by the conduction detection unit 232.

In other words, in this implementation manner, the force control component 210 and the key function component 240 can perform different logical operation processing according to different pressing states. For example, the force control component 210 may start to perform magnetic control when the key is pressed for a certain distance, and the key function component 240 needs to obtain the key value of the key and send it to other devices when the key is fully pressed.

Optionally, in the foregoing implementation manner, the force control component 210 acquires the first pressing state from the plurality of stroke detection units 231 through scanning detection, and the key function component 240 acquires the first pressing state from multiple stroke detection units 231 through scanning detection. A plurality of the conduction detection units 232 acquire the second pressing state. The scanning clock domain of the force control component 210 and the key function component 240 are relatively independent.

In other words, because in this implementation manner, the state of the case detected by the force control component 210 and the key function component 240 is not the same, so there is no need to specifically consider the problem of synchronization of scanning detection, so the force control The scanning actions of the component 210 and the key function component 240 may be independent of each other and are based on different clock signals.

In some possible implementations, please refer to FIG. 13, the button function component 240 and the force control component 210 are connected through a communication line; the force control component 210 is obtained from the force control component 210 through the communication line Control strategy data. When the force control component 210 detects a change in the pressing state, it controls the electromagnetic coil to apply force to the button in different directions along the pressing of the button and/or according to the preset timing in the control strategy data. Different sizes of force.

In other words, in this embodiment, the force control component 210’s force control strategy for the controllable force button can be set, and a personalized force control strategy can be configured through an external device (such as a computer host), and through the button The functional component 240 is delivered to the force control component 210, so that the force control component 210 can achieve diversified force control, thereby more in line with the individual needs of the user.

In some possible implementations, the stroke detection unit 231 includes a light-emitting element configured to emit detection light and a photosensitive element configured to receive the detection light.

In this embodiment, the magnetic component 220 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 component 210 and the electromagnetic coil.

The force control component 210 is configured to control the switching elements in the switching circuit to be turned on or off according to a preset timing in the working state, so as to deliver currents of different directions and/or different magnitudes to the electromagnetic coil , Enabling the electromagnetic coil to apply forces of different directions and/or different magnitudes of pressing along the key to the key.

In some possible implementation manners, referring to FIG. 14, the button system may further include a power detection component 250. The power detection component 250 is configured to generate a disconnection signal when it is detected that the power consumption of the key system is greater than a preset threshold, and the disconnection signal is configured to disconnect the power supply line of the magnetic component 220.

Wherein, the electric energy detection component 250 can directly control an electric energy limit switch 260, as shown in FIG. 6. By controlling the electric energy limit switch 260, the power supply circuit of the magnetic component 220 can be cut off or restored. Referring to FIG. 15, the power detection component 250 can also be connected to the key function component 240, and the key function component 240 is then connected to a power limit switch 260. The power detection component 250 detects that the power consumption is greater than When the threshold is preset, a disconnect signal is generated and sent to the key function component 240, and then the key function component 240 controls the power limit switch 260 to be turned off.

Please refer to FIG. 16. FIG. 16 is a schematic diagram of a possible detailed circuit of the key system provided by this embodiment.

As shown in FIG. 16, the pressing detection assembly may include a light-emitting element D11 and a photosensitive element S11.

If the button is in the first stroke section, the detection light emitted by the light-emitting element D11 can be received by the photosensitive element S11; if the button is in the second stroke section, the light transmission path between the light-emitting element D11 and the photosensitive element S11 is blocked , The detection light emitted by the light-emitting element D11 cannot be detected by the light-receiving element S11. The conduction state of the photosensitive element S11 can be detected through the line Y1, so as to know in which stroke section the button is located. Both the key function component and the force control component obtain the pressed state of the key from the photosensitive element S11.

The third embodiment

Please refer to FIG. 17, which is a schematic diagram of a key system provided by this embodiment. The key system may include a pressing detection component 330, a force control component 310, and a magnetic component 320.

The pressing detection component 330 is arranged corresponding to the key to be detected, and the pressing stroke of the key includes at least two stroke segments. The pressing stroke is the maximum moving distance that the button has never been pressed until it is pressed to the point where it cannot continue to move.

In this embodiment, the pressing detection component 330 can detect the pressing state of the button, and notify the force control component 310 of the pressing state. For example, when the press detection component 330 detects that the button is in the first stroke segment, it can generate a first signal and send it to the force control component 310; when the press detection component 330 detects that the button is in the first stroke In the second stroke section, a second signal can be generated and sent to the force control component 310.

In this embodiment, the force control component 310 may have at least two different states including a working state and a sleep state. Wherein, the power consumption when the force control component 310 is in the working state is greater than the power consumption when in the dormant state.

The force control component 310 can switch between a sleep state and a working state under the trigger of an external signal. For example, the force control component 310 may have a sleep wake-up interface 311. The sleep wake-up interface 311 may be a built-in sleep wake-up interface 311 on the integrated chip, or a special sleep wake-up circuit or a sleep wake-up module. The sleep wakeup interface 311 can receive a signal that characterizes the pressing state of the button, so as to set the force control component 310 to a working state or a sleep state.

The force control component 310 is connected to the pressing detection component 330, and the force control component 310 is configured to enter the working state when the pressing state is that the button is pressed from the first stroke section to the second stroke section, and The pressing state is that the button enters a dormant state after being released from the second stroke section to the first stroke section.

The force control component 310 is also connected to the magnetic component 320, and the force control component 310 is configured to control the magnetic component 320 to apply a force along the button pressing direction to the button or to apply a force in the working state. Deviate from the button pressing direction force.

In other words, in the solution provided in this embodiment, when the button is not pressed or pressed for a small distance (that is, in the first stroke section), the force control component 310 is in a dormant state; When the button is pressed for a relatively long distance (that is, in the second stroke section), the force control component 310 is in a working state and can control the magnetic component 320 to perform a more complicated magnetic force application action.

Based on the above design, in the key system provided in this embodiment, the force control component 310 can be awakened for magnetic control only after the key is pressed to a certain extent, so that the force control component 310 does not have to be kept in a high energy consumption work. State, can reduce the overall power demand of the button system.

Optionally, in a possible implementation manner, the force control component 310 is configured to enter sleep immediately when the pressing state is that the button is released from the second stroke section to the first stroke section state.

In other possible implementation manners, the force control component 310 is configured to delay a certain period of time and then enter after the button is released from the second stroke section to the first stroke section in the pressed state. Sleep state. In this way, when certain keys are frequently pressed and released, the force control component 310 can be prevented from frequently switching between the sleep state and the working state.

18, in this embodiment, the button system may further include a button function component 340, the button function component 340 is configured to detect the pressing state of the button, and according to the pressing state of the button corresponding to The key value is sent to other devices communicatively connected with the key function component 340. For example, when the key system provided in this embodiment is applied to a keyboard, the key function component 340 can be connected to the computer host and send the identified key value to the computer host.

In a possible implementation, 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 to obtain the pressing state of the key relatively independently.

Optionally, in one case, the force control component 310 and the key function component 340 may perform different logical operation processing according to the same pressing state.

For example, the force control component 310 and the button function component 340 both detect whether the button is located in the first stroke segment or the second stroke segment through the pressing state detection component. Wherein, the force control component 310 is configured to enter a working state when the pressing state is that the button is pressed from a first stroke section to a second stroke section, and when the pressing state is that the button moves from the second stroke section When the stroke section is released to the first stroke section, it enters the dormant state; and the button function component 340 will press the button when it detects that the pressing state is that the button is pressed from the first stroke section to the second stroke section. The corresponding key value is sent to other devices communicatively connected with the key function component 340, and the key of the key is not sent when the pressing state is that the key is released from the second travel segment to the first travel segment value.

In another case, the force control component 310 and the key function component 340 can perform different logical operation processing according to different pressing states.

For example, referring to FIG. 19, the pressing detection component 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 pressing state acquired by the force control component 310 may be whether the button is located in the first stroke segment or the second stroke detected by the stroke detection unit 331 Section; and the key function component 340 is connected to the conduction detection unit 332, the pressing state acquired by the key function component 340 may be whether the key is fully pressed detected by the conduction detection unit 332. In other words, the force control component 310 can be awakened after the key is pressed for a certain distance and start to perform magnetic control, and the key function component 340 needs to obtain the key information after the key is fully pressed. The key value is sent 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 also configured to The pressing state acquired from the pressing detection component 330 is sent to the force control component 310.

For example, the key function component 340 obtains through the press detection component 330 when the key is located in the second stroke segment, and then the key function component 340 sends the corresponding key value to the force control via the communication line. The component 310 sends information so that the force control component 310 also learns that the button is located in the second stroke section, so that the force control component 310 enters the working state and performs magnetic control.

Based on the above design, in the button system provided by this embodiment, the control action of the force control component 310 and the recognition action of the button 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 will not be affected. In this way, the working reliability and fault tolerance of the entire key system are improved.

In some possible implementations, the magnetic component 320 is configured to not apply force to the button when the force control component 310 is in a dormant state. In other words, when the key is in the first stroke segment, the magnetic component 320 does not apply magnetic force like a key. In this case, a spring or a reed structure in the mechanical structure of the key may apply a force away from the direction in which the key is pressed to the key.

In other possible implementation manners, the magnetic component 320 is configured to apply a fixed force away from the button pressing direction to the button when the force control component 310 is in a sleep state. In other words, when the key is in the first stroke segment, the magnetic component 320 applies a fixed force away from the pressing direction of the key to the key. In this case, when the button is in the first stroke segment, only a fixed magnetic force needs to be applied to the button, so the participation of the force control component 310 is not required, and the force control component 310 can remain in a dormant state ; And when the button is in the second stroke segment, because more complex magnetic control is required, the force control component 310 can be awakened to perform magnetic control logic processing.

In this embodiment, the magnetic component 320 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 component 310 and the electromagnetic coil.

The force control component 310 is configured to control the switching elements in the switching circuit to be turned on or off according to a preset timing in the working state, so as to deliver currents of different directions and/or different magnitudes to the electromagnetic coil , Enabling the electromagnetic coil to apply forces of different directions and/or different magnitudes of pressing along the key to the key.

Please refer to FIG. 21. In some possible implementations, the button system may further include an electric energy detecting component 350; the electric energy detecting component 350 is configured to generate an interrupt when it detects that the electric energy consumed by the button system is greater than a preset threshold. The opening signal is configured to disconnect the power supply line of the magnetic component 320.

Wherein, the electric energy detection component 350 can directly control an electric energy limit switch 360, as shown in FIG. 6. By controlling the electric energy limit switch 360, the power supply circuit of the magnetic component 320 can be cut off or restored. 22, the power detection component 350 can also be connected to the key function component 340, and the key function component 340 is then connected to a power limit switch 360. The power detection component 350 detects that the power consumption is greater than When the threshold is preset, a disconnect signal is generated and sent to the key function component 340, and then the key function component 340 controls the power limit switch 360 to be turned off.

In some possible implementations, the part of the press detection component 330 configured to detect whether the button is in the first stroke section or the second stroke section includes: a light emitting element configured to emit detection light and a light emitting element configured to receive the A photosensitive element that detects light.

Fourth embodiment

This embodiment also provides a control method applied to the above-mentioned key system. Please refer to FIG. 23. FIG. 23 is a schematic diagram of the processing flow of one scan cycle during the key pressing process.

In step S111, the current key press is detected in this cycle.

In this embodiment, the detection of the button being pressed is the detection of the button being pressed from the first stroke section to the second stroke section.

In step S112, it is detected whether the function of applying upward force is enabled.

In this embodiment, the upward application of a force is to apply a force away from the direction in which the button is pressed.

If the function of applying upward force is enabled, go to step S130;

If the function of applying upward force is not activated, step S140 is entered.

In step S113, it is detected whether the holding time of the upward force is reached.

If it is not reached, go to step S114;

If it reaches, it proceeds to step S115.

Step S114, controlling the magnetic component to exert an upward force in the current scanning period.

In step S115, it is detected whether the function of applying downward force is enabled.

In this embodiment, the upward application of a force is to apply a force along the direction in which the button is pressed.

If the function of applying downward force is enabled, go to step S116;

If the function of applying downward force is not activated, step S118 is entered.

In step S116, it is detected whether the holding time of the downward applied force is reached.

If it is not reached, go to step S117;

If it reaches, go to step S118.

Step S117, controlling the magnetic component to apply a downward force in the current scanning period.

In step S118, it is detected whether the function of retaining the upward force application after the pressing state is completed is enabled.

If enabled, go to step S119;

If it is not activated, go to step S121.

In step S119, it is detected whether the retention time of the upward force applied is reached.

If it is not reached, go to step S120;

If it reaches, it proceeds to step S121.

Step S120, controlling the magnetic component to exert an upward force in the current scanning period.

Step S121, controlling the magnetic component to cancel the applied force.

Please refer to Figure 24, which is a schematic diagram of the processing flow of one scan cycle during the key release process.

In step S210, it is detected that the current button is released in this cycle.

In step S220, it is detected whether the holding time of the upward force is reached.

If it is not reached, go to step S221;

If it reaches, go to step S222.

Step S221, controlling the magnetic component to exert an upward force in the current scanning period.

Step S222, controlling the magnetic component to cancel the applied force.

The above are only the various embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present disclosure. All should be covered within the protection scope of this disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

A key system is characterized by comprising a first pressing detection component, a key function component, a force control component, and a magnetic component;

The first pressing detection component is connected to the force control component, and is configured to detect the pressing state of at least a part of the keys and send it to the force control component;

The force control component is respectively connected with the button function component, the magnetic component and the first pressing detection component, and the force control component is configured to control the pressing state according to the pressing state detected by the first pressing detection component. The magnetic component applies a force along the button pressing direction or a force away from the button pressing direction to the button, and transmits the pressing state to the button function component;

The key function component is configured to send the key value corresponding to the key to other devices connected to the key function component according to the received pressing state.
The button system according to claim 1, wherein the force control component is connected to the serial communication interface of the button function component; the force control component sends the detected pressing state through serial communication Give the button function components.
The button system according to claim 2, wherein the button system comprises a plurality of the force control components;

The serial communication interfaces of a plurality of the force control components are connected to the communication ports of the key function components through a communication bus; or the serial communication interfaces of a plurality of the force control components are connected to the key function through independent communication lines. Component connection.
The button system according to claim 1, wherein the button function component includes a plurality of first IO interfaces, and the force control component includes a plurality of second IO interfaces corresponding to the plurality of first IO interfaces. An IO interface, the multiple first IO interfaces are respectively connected to the multiple second IO interfaces through an IO communication line; the key function component obtains the pressing state from the force control component through the IO communication line.
The button system according to claim 4, wherein the force control component further comprises a plurality of third IO interfaces, and the plurality of third IO interfaces are connected to the plurality of first pressing detections through a scanning circuit. Component connection, the plurality of third IO interfaces acquire the pressing state collected by the first pressing detection component by scanning;

The key function component acquires the pressing state from the key function component by scanning;

The scan clock domain of the key function component is relatively independent of the scan clock domain of the force control component.
The button system according to claim 5, wherein the force control component comprises a registering component, and the registering component is configured to record the pressing state obtained through scanning of the plurality of third IO interfaces, and to store the The pressing state recorded during the scanning process of the key function component is transmitted to the key function component.
4. The button system according to claim 4, wherein the button system further comprises a second pressing detection component configured to detect the pressing state of at least a part of the buttons;

The key function component further includes a fourth IO interface, the fourth IO interface is connected to the second press detection component, and the key function component obtains information from the second press detection component through the fourth IO interface. The collected pressing state.
A key system, characterized in that it comprises a pressing detection component, a key function component, a force control component and a magnetic component;

The pressing detection component is connected to the force control component, and is configured to detect the pressing state of the button and send it to the force control component;

The force control component is respectively connected with the magnetic component and the pressing detection component, and the force control component is configured to control the magnetic component to apply the pressing along the key to the key according to the pressing state detected by the pressing detection component. Directional force or force applied away from the button pressing direction;

The key function component is connected to the pressing detection component, and the key function component is configured to send the key value corresponding to the key to other devices connected to the key function component according to the received pressing state.
8. The button system according to claim 8, wherein the button 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 pressing state of the key, the pressing state including the key being pressed from a first stroke section to a second stroke section or released from the second stroke section to a first stroke section ；

The key function component and the force control component are respectively connected with the stroke detection unit to obtain the pressing state collected by the stroke detection unit.
The button system according to claim 9, wherein the button function component is connected to a plurality of the stroke detection units through a scanning circuit; the force control component is obtained based on the scanning signal output by the button function component A plurality of pressing states collected by the stroke detection unit.
8. The button system according to claim 8, wherein the button includes at least two 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 pressing state of the key, the first pressing 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 segment; the force control component is connected to the stroke detection unit to obtain the first pressing state collected by the stroke detection unit;

The conduction detection unit is configured to detect a second pressing state of the key, and the second pressing state includes the key being pressed to a conduction trigger point, and the conduction trigger point is located in the pressing stroke of the key The key function component is connected to the conduction detection unit to obtain the second pressing state collected by the conduction detection unit.
The key system according to claim 11, wherein the force control component acquires the first pressing state from a plurality of the stroke detection units by scanning detection, and the key function component acquires the first pressing state by scanning detection. The second pressing state is acquired from a plurality of the conduction detection units; wherein the scanning clock domain of the force control component and the key function component are relatively independent.
A key system, characterized in that it comprises a pressing detection component, a force control component and a magnetic component;

The pressing detection component is connected to the force control component and is configured to detect the pressing state of the button and send it to the force control component, and the pressing stroke of the button includes at least two stroke segments;

The force control component is connected to the pressing detection component, and the force control component is configured to enter the working state when the pressing state is that the key is pressed from the first stroke section to the second stroke section, and The state is that the button enters the dormant state after being released from the second stroke section to the first stroke section; wherein the power consumption when the force control component is in the working state is greater than the power consumption when in the dormant state;

The magnetic component is connected to the force control component, and the force control component is configured to control the magnetic component to apply a force along the button pressing direction to the button or apply a force away from the button in the working state Directional force.
The button system according to claim 13, wherein the button system further comprises a button function component;

The key function component is configured to detect the pressed state of the key, and send the key value corresponding to the key to other devices communicatively connected with the key function component according to the pressed state.
The button system according to claim 14, wherein the force control component and the button function component are respectively connected to the pressing detection component, and the pressing state of the button is obtained relatively independently.
The button system according to claim 14, wherein the button function component is respectively connected to the pressing detection component and the force control component, and the button function component is further configured to obtain from the pressing detection component The obtained pressing state is sent to the force control component.
An interactive device, characterized in that the interactive device comprises a button and the button system according to any one of claims 1-16.