CN112162478B - Control method and control system for intelligent switching control right - Google Patents
Control method and control system for intelligent switching control right Download PDFInfo
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- CN112162478B CN112162478B CN202011067498.5A CN202011067498A CN112162478B CN 112162478 B CN112162478 B CN 112162478B CN 202011067498 A CN202011067498 A CN 202011067498A CN 112162478 B CN112162478 B CN 112162478B
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B7/00—Arrangements for obtaining smooth engagement or disengagement of automatic control
- G05B7/02—Arrangements for obtaining smooth engagement or disengagement of automatic control electric
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/96—Touch switches
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The invention relates to a control method and a control system for intelligently switching control rights, which are applied to keyboards for controlling a plurality of host devices, and are characterized in that the keyboards at least comprise a wireless transmitter and a pressure sensor, and the pressure sensor is arranged on a supporting piece of the keyboard; the control method comprises the following steps: sensing a first trigger signal of a space key of a keyboard; sensing a second trigger signal of the pressure sensor; judging whether the first trigger signal and the second trigger signal are received at the same time, and if so, triggering the keyboard switching control host equipment.
Description
Technical Field
The invention relates to the technical field of intelligent control, in particular to a control method and a control system for intelligent switching control right.
Background
In the prior art, most of the technologies are that one keyboard controls one host, along with the increase of electronic devices, users are likely to need to operate a plurality of electronic devices in many cases, such as operating different computers simultaneously, and switching operation keyboards back and forth is troublesome. The independent switch is also arranged, the keyboard control right is switched through the control switch, the switch is specially required to be adjusted, and when the keyboard control right is switched repeatedly, the switching is inconvenient; how to intelligently switch the keyboard control rights while protecting the privacy of the user is a difficulty.
Disclosure of Invention
The invention discloses a control method for intelligently switching control rights, which is applied to a keyboard for controlling a plurality of host devices, and is characterized in that the keyboard at least comprises a wireless transmitter and a pressure sensor, and the pressure sensor is arranged on a supporting piece of the keyboard;
the control method comprises the following steps:
sensing a first trigger signal of a space key of a keyboard;
sensing a second trigger signal of the pressure sensor;
judging whether the first trigger signal and the second trigger signal are received at the same time, and if so, triggering the keyboard switching control host equipment.
In the control method for intelligently switching the control right, the first trigger signal comprises at least one pressing of the space key.
The control method for intelligently switching control rights comprises the steps that the keyboard comprises at least four supporting pieces, wherein the supporting pieces are arranged at the bottom of the keyboard and used for fixedly supporting the keyboard when the keyboard is placed, and the pressure sensor is arranged in the supporting pieces; the four supporting pieces are arranged at the bottom of the keyboard and close to four corners, wherein the two supporting pieces close to the front end of the keyboard can adjust the inclination angle of the keyboard, and the pressure sensor is arranged in the two supporting pieces close to the rear end of the keyboard; the two supporting pieces near the rear end of the keyboard are arranged to be a first supporting piece and a second supporting piece, and the first supporting piece and the second supporting piece are identical in structure and both comprise: a support outer shell, a support inner shell, an elastic element and a sensing element; the support outer shell is a cuboid with a gap at the lower part and a hollow inside, one end of the elastic element is fixed on the upper wall of the support outer shell, the other end of the elastic element is connected with the upper part of the support inner shell, the lower part of the support inner shell is contacted with the support surface of the keyboard, the support inner shell and the support outer shell can relatively move under the action of the elastic element, and the sensing element is arranged on the side wall of the support outer shell and used for sensing the relative displacement of the support inner shell relative to the support outer shell;
when the keyboard is normally placed on a supporting surface and is not used, a first relative displacement exists between the supporting inner shell and the supporting outer shell due to the gravity of the keyboard, the sensing element stores the first relative displacement as a basic value, when the keyboard is used by a user, the second relative displacement is further formed between the supporting inner shell and the supporting outer shell due to the gravity of the hand of the user, the sensing element stores the second relative displacement as an initial value, a displacement difference value between the initial value and the basic value is calculated, a pressure threshold value is set according to the displacement difference value, when the displacement difference value is larger than the first displacement deviation and smaller than the second displacement deviation, the displacement between the supporting inner shell and the supporting outer shell corresponding to the pressure threshold value is set to be a third relative displacement, and when the gravity of the hand of the user presses the keyboard to exceed the third relative displacement on the basis of the initial value, the pressure sensing value is triggered to exceed the pressure threshold value; when the displacement difference is larger than the second displacement deviation, the displacement between the supporting inner shell and the supporting outer shell corresponding to the pressure threshold is set to be fourth relative displacement, and when the pressing keyboard exceeds the fourth relative displacement on the basis of the initial value under the action of gravity of the hand of a user, the pressure sensing value is triggered to exceed the pressure threshold.
According to the control method for the intelligent switching control right, the second trigger signal comprises the steps that the pressure sensing value exceeds the pressure threshold value continuously at least twice in a preset period, the pressure sensor senses the pressure value on any one of the four support pieces in real time, whether the pressure value exceeds the pressure threshold value is judged, if yes, a timer is started to record a first moment, the pressure sensor continues to sense the pressure value, whether the pressure value on the same support piece is monitored to exceed the pressure threshold value is judged, if yes, a second moment at the moment is recorded through the timer, the second moment and the first moment are taken as a difference to obtain a time difference, whether the time difference is smaller than the set time threshold value is judged, if yes, a second trigger signal is generated, if no, the timer is cleared, the moment when the pressure value exceeds the pressure threshold value next time is waited, and restarting is carried out.
The method for controlling the intelligent switching control right includes the steps of judging whether the first trigger signal and the second trigger signal are received simultaneously, and if yes, triggering the keyboard switching control host device, wherein the method specifically includes the steps of: and when the second trigger signal is received, the timing time period of the timer is received at the same time, whether the pressing operation of the first trigger signal is within the timing time period is checked, if so, a trigger signal is generated, and the trigger signal is used for controlling the keyboard to be switched from controlling the first host equipment to controlling the second host equipment.
The control system for intelligently switching control rights is applied to a keyboard for controlling a plurality of host devices, and the keyboard at least comprises a wireless transmitter and a pressure sensor, wherein the pressure sensor is arranged on a support piece of the keyboard;
the control system includes:
a first sensing unit for sensing a first trigger signal of a space key of the keyboard;
a second sensing unit sensing a second trigger signal of the pressure sensor;
a judging unit that judges whether the first trigger signal and the second trigger signal are received at the same time,
and the switching unit is used for receiving the judging result of the judging unit, and triggering the keyboard to switch and control the host equipment if the judging result is yes.
The intelligent control right switching control system comprises at least four supporting pieces, wherein the supporting pieces are arranged at the bottom of the keyboard and used for fixedly supporting the keyboard when the keyboard is placed, and the pressure sensor is arranged in the supporting pieces; the four supporting pieces are arranged at the bottom of the keyboard and close to four corners, wherein the two supporting pieces close to the front end of the keyboard can adjust the inclination angle of the keyboard, and the pressure sensor is arranged in the two supporting pieces close to the rear end of the keyboard; the two supporting pieces near the rear end of the keyboard are arranged to be a first supporting piece and a second supporting piece, and the first supporting piece and the second supporting piece are identical in structure and both comprise: a support outer shell, a support inner shell, an elastic element and a sensing element; the support outer shell is a cuboid with a gap at the lower part and a hollow inside, one end of the elastic element is fixed on the upper wall of the support outer shell, the other end of the elastic element is connected with the upper part of the support inner shell, the lower part of the support inner shell is contacted with the support surface of the keyboard, the support inner shell and the support outer shell can relatively move under the action of the elastic element, and the sensing element is arranged on the side wall of the support outer shell and used for sensing the relative displacement of the support inner shell relative to the support outer shell;
the keyboard further comprises a control unit, wherein the control unit is used for receiving the displacement value sensed by the sensing element, setting a pressure threshold according to the displacement value, judging whether the pressure exceeds the pressure threshold, and controlling the switching unit to switch control right if the pressure exceeds the pressure threshold;
when the keyboard is normally placed on a supporting surface and is not used, a first relative displacement exists between the supporting inner shell and the supporting outer shell due to the gravity of the keyboard, the sensing element stores the first relative displacement as a basic value, when the keyboard is used by a user, the second relative displacement is further formed between the supporting inner shell and the supporting outer shell due to the gravity of the hand of the user, the sensing element stores the second relative displacement as an initial value, a displacement difference value between the initial value and the basic value is calculated, a pressure threshold value is set according to the displacement difference value, when the displacement difference value is larger than the first displacement deviation and smaller than the second displacement deviation, the displacement between the supporting inner shell and the supporting outer shell corresponding to the pressure threshold value is set to be a third relative displacement, and when the gravity of the hand of the user presses the keyboard to exceed the third relative displacement on the basis of the initial value, the pressure sensing value is triggered to exceed the pressure threshold value; when the displacement difference is larger than the second displacement deviation, the displacement between the supporting inner shell and the supporting outer shell corresponding to the pressure threshold is set to be fourth relative displacement, and when the pressing keyboard exceeds the fourth relative displacement on the basis of the initial value under the action of gravity of the hand of a user, the pressure sensing value is triggered to exceed the pressure threshold.
The second trigger signal comprises at least two continuous pressure sensing values exceeding a pressure threshold value within a preset period, the pressure sensor senses the pressure value on any one of the four support members in real time, judges whether the pressure value exceeds the pressure threshold value, if so, a timer is started to record a first moment, the pressure sensor continues to sense the pressure value, judges whether the pressure value on the same support member exceeds the pressure threshold value, if so, the timer is started to record a second moment at the moment, the second moment and the first moment are taken as a difference to obtain a time difference, whether the time difference is smaller than the set time threshold value is judged, if so, a second trigger signal is generated, if not, the timer is cleared, the moment when the pressure value exceeds the pressure threshold value next time is waited, and the system is restarted.
The intelligent control right switching control system specifically comprises the following switching processes of the switching unit: when a second trigger signal is received, a timing time period of the timer is received at the same time, whether the pressing operation of the first trigger signal is within the timing time period is checked, if yes, a trigger signal is generated, and the trigger signal is used for controlling the keyboard to be switched from controlling the first host equipment to controlling the second host equipment;
the switching unit comprises a frequency switching module, and after receiving a switching instruction of the control unit, the frequency switching module switches a first transmitting frequency of the keyboard to a preset second transmitting frequency, wherein the first transmitting frequency is correspondingly connected with the first host equipment, and the second transmitting frequency is correspondingly connected with the second host equipment.
The method and the device can switch the keyboard control rights according to the operation information of the user, can control a plurality of host devices by one keyboard, and realize intelligent switching, thereby protecting the privacy of the user. As one of the main improvement points of the invention, the gravity of the keyboard is controlled by the space key of the keyboard and the user wish, the intelligent switching of the control right of the keyboard is realized by the simultaneity judgment of the two signals, the change of the switching operation mode is realized, the inconvenience of using a single mechanical knob to control the switching in the prior art is overcome, and the potential safety hazard caused by the image acquisition by a camera in the prior art is also overcome; as one of innovative improvement points of the invention, through the simultaneous operation of two trigger signals, misoperation caused by a single signal is avoided, the space key of the keyboard is multiplexed, and the accuracy of switching trigger of the switching control right is improved by matching with pressure sensing. One of the main improvement points of the invention is that the pressure sensing component is arranged at the bottom of the keyboard, different values of the pressure of different users are realized by improving the pressure sensing mode, displacement and other modes, the adaptability of the keyboard to the sensed pressure is improved, and the adaptability of the second trigger signal is effectively and rapidly carried out by converting the displacement and the pressure which are arranged in the shell.
Drawings
Fig. 1 is a schematic diagram of a control method for intelligently switching control rights according to the present invention.
Fig. 2 is a schematic diagram of a control system for intelligently switching control rights according to the present invention.
Detailed Description
The following detailed description of the present application is provided in conjunction with the accompanying drawings, and it is to be understood that the following detailed description is merely illustrative of the application and is not to be construed as limiting the scope of the application, since numerous insubstantial modifications and adaptations of the application will be to those skilled in the art in light of the foregoing disclosure.
As shown in fig. 1, the present invention discloses a schematic diagram of a control method for intelligently switching control rights, which is applied to a keyboard for controlling a plurality of host devices, and is characterized in that the keyboard at least comprises a wireless transmitter and a pressure sensor, and the pressure sensor is arranged on a supporting member of the keyboard;
the control method comprises the following steps:
sensing a first trigger signal of a space key of a keyboard;
sensing a second trigger signal of the pressure sensor;
judging whether the first trigger signal and the second trigger signal are received at the same time, and if so, triggering the keyboard switching control host equipment.
In the control method for intelligently switching the control right, the first trigger signal comprises at least one pressing of the space key.
The control method for intelligently switching control rights comprises the steps that the keyboard comprises at least four supporting pieces, wherein the supporting pieces are arranged at the bottom of the keyboard and used for fixedly supporting the keyboard when the keyboard is placed, and the pressure sensor is arranged in the supporting pieces; the four supporting pieces are arranged at the bottom of the keyboard and close to four corners, wherein the two supporting pieces close to the front end of the keyboard can adjust the inclination angle of the keyboard, and the pressure sensor is arranged in the two supporting pieces close to the rear end of the keyboard; the two supporting pieces near the rear end of the keyboard are arranged to be a first supporting piece and a second supporting piece, and the first supporting piece and the second supporting piece are identical in structure and both comprise: a support outer shell, a support inner shell, an elastic element and a sensing element; the support outer shell is a cuboid with a gap at the lower part and a hollow inside, one end of the elastic element is fixed on the upper wall of the support outer shell, the other end of the elastic element is connected with the upper part of the support inner shell, the lower part of the support inner shell is contacted with the support surface of the keyboard, the support inner shell and the support outer shell can relatively move under the action of the elastic element, and the sensing element is arranged on the side wall of the support outer shell and used for sensing the relative displacement of the support inner shell relative to the support outer shell;
when the keyboard is normally placed on a supporting surface and is not used, a first relative displacement exists between the supporting inner shell and the supporting outer shell due to the gravity of the keyboard, the sensing element stores the first relative displacement as a basic value, when the keyboard is used by a user, the second relative displacement is further formed between the supporting inner shell and the supporting outer shell due to the gravity of the hand of the user, the sensing element stores the second relative displacement as an initial value, a displacement difference value between the initial value and the basic value is calculated, a pressure threshold value is set according to the displacement difference value, when the displacement difference value is larger than the first displacement deviation and smaller than the second displacement deviation, the displacement between the supporting inner shell and the supporting outer shell corresponding to the pressure threshold value is set to be a third relative displacement, and when the gravity of the hand of the user presses the keyboard to exceed the third relative displacement on the basis of the initial value, the pressure sensing value is triggered to exceed the pressure threshold value; when the displacement difference is larger than the second displacement deviation, the displacement between the supporting inner shell and the supporting outer shell corresponding to the pressure threshold is set to be fourth relative displacement, and when the pressing keyboard exceeds the fourth relative displacement on the basis of the initial value under the action of gravity of the hand of a user, the pressure sensing value is triggered to exceed the pressure threshold.
According to the control method for the intelligent switching control right, the second trigger signal comprises the steps that the pressure sensing value exceeds the pressure threshold value continuously at least twice in a preset period, the pressure sensor senses the pressure value on any one of the four support pieces in real time, whether the pressure value exceeds the pressure threshold value is judged, if yes, a timer is started to record a first moment, the pressure sensor continues to sense the pressure value, whether the pressure value on the same support piece is monitored to exceed the pressure threshold value is judged, if yes, a second moment at the moment is recorded through the timer, the second moment and the first moment are taken as a difference to obtain a time difference, whether the time difference is smaller than the set time threshold value is judged, if yes, a second trigger signal is generated, if no, the timer is cleared, the moment when the pressure value exceeds the pressure threshold value next time is waited, and restarting is carried out.
The method for controlling the intelligent switching control right includes the steps of judging whether the first trigger signal and the second trigger signal are received simultaneously, and if yes, triggering the keyboard switching control host device, wherein the method specifically includes the steps of: and when the second trigger signal is received, the timing time period of the timer is received at the same time, whether the pressing operation of the first trigger signal is within the timing time period is checked, if so, a trigger signal is generated, and the trigger signal is used for controlling the keyboard to be switched from controlling the first host equipment to controlling the second host equipment.
Fig. 2 is a schematic diagram of a control system for intelligently switching control rights according to the present invention. The control system for intelligently switching control rights is applied to a keyboard for controlling a plurality of host devices, and the keyboard at least comprises a wireless transmitter and a pressure sensor, wherein the pressure sensor is arranged on a support piece of the keyboard;
the control system includes:
a first sensing unit for sensing a first trigger signal of a space key of the keyboard;
a second sensing unit sensing a second trigger signal of the pressure sensor;
a judging unit that judges whether the first trigger signal and the second trigger signal are received at the same time,
and the switching unit is used for receiving the judging result of the judging unit, and triggering the keyboard to switch and control the host equipment if the judging result is yes.
The intelligent control right switching control system comprises at least four supporting pieces, wherein the supporting pieces are arranged at the bottom of the keyboard and used for fixedly supporting the keyboard when the keyboard is placed, and the pressure sensor is arranged in the supporting pieces; the four supporting pieces are arranged at the bottom of the keyboard and close to four corners, wherein the two supporting pieces close to the front end of the keyboard can adjust the inclination angle of the keyboard, and the pressure sensor is arranged in the two supporting pieces close to the rear end of the keyboard; the two supporting pieces near the rear end of the keyboard are arranged to be a first supporting piece and a second supporting piece, and the first supporting piece and the second supporting piece are identical in structure and both comprise: a support outer shell, a support inner shell, an elastic element and a sensing element; the support outer shell is a cuboid with a gap at the lower part and a hollow inside, one end of the elastic element is fixed on the upper wall of the support outer shell, the other end of the elastic element is connected with the upper part of the support inner shell, the lower part of the support inner shell is contacted with the support surface of the keyboard, the support inner shell and the support outer shell can relatively move under the action of the elastic element, and the sensing element is arranged on the side wall of the support outer shell and used for sensing the relative displacement of the support inner shell relative to the support outer shell;
the keyboard further comprises a control unit, wherein the control unit is used for receiving the displacement value sensed by the sensing element, setting a pressure threshold according to the displacement value, judging whether the pressure exceeds the pressure threshold, and controlling the switching unit to switch control right if the pressure exceeds the pressure threshold;
when the keyboard is normally placed on a supporting surface and is not used, a first relative displacement exists between the supporting inner shell and the supporting outer shell due to the gravity of the keyboard, the sensing element stores the first relative displacement as a basic value, when the keyboard is used by a user, the second relative displacement is further formed between the supporting inner shell and the supporting outer shell due to the gravity of the hand of the user, the sensing element stores the second relative displacement as an initial value, a displacement difference value between the initial value and the basic value is calculated, a pressure threshold value is set according to the displacement difference value, when the displacement difference value is larger than the first displacement deviation and smaller than the second displacement deviation, the displacement between the supporting inner shell and the supporting outer shell corresponding to the pressure threshold value is set to be a third relative displacement, and when the gravity of the hand of the user presses the keyboard to exceed the third relative displacement on the basis of the initial value, the pressure sensing value is triggered to exceed the pressure threshold value; when the displacement difference is larger than the second displacement deviation, the displacement between the supporting inner shell and the supporting outer shell corresponding to the pressure threshold is set to be fourth relative displacement, and when the pressing keyboard exceeds the fourth relative displacement on the basis of the initial value under the action of gravity of the hand of a user, the pressure sensing value is triggered to exceed the pressure threshold.
The second trigger signal comprises at least two continuous pressure sensing values exceeding a pressure threshold value within a preset period, the pressure sensor senses the pressure value on any one of the four support members in real time, judges whether the pressure value exceeds the pressure threshold value, if so, a timer is started to record a first moment, the pressure sensor continues to sense the pressure value, judges whether the pressure value on the same support member exceeds the pressure threshold value, if so, the timer is started to record a second moment at the moment, the second moment and the first moment are taken as a difference to obtain a time difference, whether the time difference is smaller than the set time threshold value is judged, if so, a second trigger signal is generated, if not, the timer is cleared, the moment when the pressure value exceeds the pressure threshold value next time is waited, and the system is restarted.
The intelligent control right switching control system specifically comprises the following switching processes of the switching unit: when a second trigger signal is received, a timing time period of the timer is received at the same time, whether the pressing operation of the first trigger signal is within the timing time period is checked, if yes, a trigger signal is generated, and the trigger signal is used for controlling the keyboard to be switched from controlling the first host equipment to controlling the second host equipment;
the switching unit comprises a frequency switching module, and after receiving a switching instruction of the control unit, the frequency switching module switches a first transmitting frequency of the keyboard to a preset second transmitting frequency, wherein the first transmitting frequency is correspondingly connected with the first host equipment, and the second transmitting frequency is correspondingly connected with the second host equipment.
The method and the device can switch the keyboard control rights according to the operation information of the user, can control a plurality of host devices by one keyboard, and realize intelligent switching, thereby protecting the privacy of the user. As one of the main improvement points of the invention, the gravity of the keyboard is controlled by the space key of the keyboard and the user wish, the intelligent switching of the control right of the keyboard is realized by the simultaneity judgment of the two signals, the change of the switching operation mode is realized, the inconvenience of using a single mechanical knob to control the switching in the prior art is overcome, and the potential safety hazard caused by the image acquisition by a camera in the prior art is also overcome; as one of innovative improvement points of the invention, through the simultaneous operation of two trigger signals, misoperation caused by a single signal is avoided, the space key of the keyboard is multiplexed, and the accuracy of switching trigger of the switching control right is improved by matching with pressure sensing. One of the main improvement points of the invention is that the pressure sensing component is arranged at the bottom of the keyboard, different values of the pressure of different users are realized by improving the pressure sensing mode, displacement and other modes, the adaptability of the keyboard to the sensed pressure is improved, and the adaptability of the second trigger signal is effectively and rapidly carried out by converting the displacement and the pressure which are arranged in the shell.
Claims (7)
1. The control method for intelligently switching control rights is applied to a keyboard for controlling a plurality of host devices and is characterized in that the keyboard at least comprises a wireless transmitter and a pressure sensor, and the pressure sensor is arranged on a supporting piece of the keyboard;
the control method comprises the following steps:
sensing a first trigger signal of a space key of a keyboard;
sensing a second trigger signal of the pressure sensor;
judging whether the first trigger signal and the second trigger signal are received at the same time, and if so, triggering the keyboard switching control host equipment; the first trigger signal comprises at least one pressing of the space key; the keyboard comprises at least four supporting pieces, wherein the supporting pieces are arranged at the bottom of the keyboard and used for fixedly supporting the keyboard when the keyboard is placed, and the pressure sensor is arranged in the supporting pieces; the four supporting pieces are arranged at the bottom of the keyboard and close to four corners, wherein the two supporting pieces close to the front end of the keyboard can adjust the inclination angle of the keyboard, and the pressure sensor is arranged in the two supporting pieces close to the rear end of the keyboard; the two supporting pieces near the rear end of the keyboard are arranged to be a first supporting piece and a second supporting piece, and the first supporting piece and the second supporting piece are identical in structure and both comprise: a support outer shell, a support inner shell, an elastic element and a sensing element; the support outer shell is a cuboid with a gap at the lower part and a hollow inside, one end of the elastic element is fixed on the upper wall of the support outer shell, the other end of the elastic element is connected with the upper part of the support inner shell, the lower part of the support inner shell is contacted with the support surface of the keyboard, the support inner shell and the support outer shell can relatively move under the action of the elastic element, and the sensing element is arranged on the side wall of the support outer shell and used for sensing the relative displacement of the support inner shell relative to the support outer shell;
when the keyboard is normally placed on a supporting surface and is not used, a first relative displacement exists between the supporting inner shell and the supporting outer shell due to the gravity of the keyboard, the sensing element stores the first relative displacement as a basic value, when the keyboard is used by a user, the second relative displacement is further formed between the supporting inner shell and the supporting outer shell due to the gravity of the hand of the user, the sensing element stores the second relative displacement as an initial value, a displacement difference value between the initial value and the basic value is calculated, a pressure threshold value is set according to the displacement difference value, when the displacement difference value is larger than the first displacement deviation and smaller than the second displacement deviation, the displacement between the supporting inner shell and the supporting outer shell corresponding to the pressure threshold value is set to be a third relative displacement, and when the gravity of the hand of the user presses the keyboard to exceed the third relative displacement on the basis of the initial value, the pressure sensing value is triggered to exceed the pressure threshold value; when the displacement difference is larger than the second displacement deviation, the displacement between the supporting inner shell and the supporting outer shell corresponding to the pressure threshold is set to be fourth relative displacement, and when the pressing keyboard exceeds the fourth relative displacement on the basis of the initial value under the action of gravity of the hand of a user, the pressure sensing value is triggered to exceed the pressure threshold.
2. The method for controlling the intelligent switching control right according to claim 1, wherein the second trigger signal comprises at least two consecutive pressure sensing values exceeding a pressure threshold value within a preset period, the pressure sensor senses the pressure value on any one of the four support members in real time, judges whether the pressure value exceeds the pressure threshold value, if so, a timer is started to record a first moment, the pressure sensor continues to sense the pressure value, judges whether the pressure value on the same support member exceeds the pressure threshold value, if so, a second moment at the moment is recorded through the timer, a difference between the second moment and the first moment is obtained, judges whether the time difference is smaller than the set time threshold value, if so, a second trigger signal is generated, if not, the timer is cleared, the moment when the pressure value exceeds the pressure threshold value next time is waited, and the method is restarted.
3. The method for controlling the intelligent switching control right according to claim 2, wherein the determining whether the first trigger signal and the second trigger signal are received simultaneously or not, and if yes, triggering the keyboard switching control host device specifically includes: and when the second trigger signal is received, the timing time period of the timer is received at the same time, whether the pressing operation of the first trigger signal is within the timing time period is checked, if so, a trigger signal is generated, and the trigger signal is used for controlling the keyboard to be switched from controlling the first host equipment to controlling the second host equipment.
4. The control system for intelligently switching control rights is applied to a keyboard for controlling a plurality of host devices and is characterized by at least comprising a wireless transmitter and a pressure sensor, wherein the pressure sensor is arranged on a supporting piece of the keyboard;
the control system includes:
a first sensing unit for sensing a first trigger signal of a space key of the keyboard;
a second sensing unit sensing a second trigger signal of the pressure sensor;
a judging unit that judges whether the first trigger signal and the second trigger signal are received at the same time,
the switching unit is used for receiving the judging result of the judging unit, and triggering the keyboard to switch and control the host equipment if the judging result is yes; the keyboard comprises at least four supporting pieces, wherein the supporting pieces are arranged at the bottom of the keyboard and used for fixedly supporting the keyboard when the keyboard is placed, and the pressure sensor is arranged in the supporting pieces; the four supporting pieces are arranged at the bottom of the keyboard and close to four corners, wherein the two supporting pieces close to the front end of the keyboard can adjust the inclination angle of the keyboard, and the pressure sensor is arranged in the two supporting pieces close to the rear end of the keyboard; the two supporting pieces near the rear end of the keyboard are arranged to be a first supporting piece and a second supporting piece, and the first supporting piece and the second supporting piece are identical in structure and both comprise: a support outer shell, a support inner shell, an elastic element and a sensing element; the support outer shell is a cuboid with a gap at the lower part and a hollow inside, one end of the elastic element is fixed on the upper wall of the support outer shell, the other end of the elastic element is connected with the upper part of the support inner shell, the lower part of the support inner shell is contacted with the support surface of the keyboard, the support inner shell and the support outer shell can relatively move under the action of the elastic element, and the sensing element is arranged on the side wall of the support outer shell and used for sensing the relative displacement of the support inner shell relative to the support outer shell;
the keyboard further comprises a control unit, wherein the control unit is used for receiving the displacement value sensed by the sensing element, setting a pressure threshold according to the displacement value, judging whether the pressure exceeds the pressure threshold, and controlling the switching unit to switch control right if the pressure exceeds the pressure threshold;
when the keyboard is normally placed on a supporting surface and is not used, a first relative displacement exists between the supporting inner shell and the supporting outer shell due to the gravity of the keyboard, the sensing element stores the first relative displacement as a basic value, when the keyboard is used by a user, the second relative displacement is further formed between the supporting inner shell and the supporting outer shell due to the gravity of the hand of the user, the sensing element stores the second relative displacement as an initial value, a displacement difference value between the initial value and the basic value is calculated, a pressure threshold value is set according to the displacement difference value, when the displacement difference value is larger than the first displacement deviation and smaller than the second displacement deviation, the displacement between the supporting inner shell and the supporting outer shell corresponding to the pressure threshold value is set to be a third relative displacement, and when the gravity of the hand of the user presses the keyboard to exceed the third relative displacement on the basis of the initial value, the pressure sensing value is triggered to exceed the pressure threshold value; when the displacement difference is larger than the second displacement deviation, the displacement between the supporting inner shell and the supporting outer shell corresponding to the pressure threshold is set to be fourth relative displacement, and when the pressing keyboard exceeds the fourth relative displacement on the basis of the initial value under the action of gravity of the hand of a user, the pressure sensing value is triggered to exceed the pressure threshold.
5. The intelligent control system according to claim 4, wherein the second trigger signal includes at least two consecutive pressure sensing values exceeding a pressure threshold value within a preset period, the pressure sensor senses the pressure value on any one of the four support members in real time, judges whether the pressure value exceeds the pressure threshold value, if so, starts a timer to record a first time, the pressure sensor continues to sense the pressure value, judges whether the pressure value on the same support member exceeds the pressure threshold value, if so, records a second time at the moment through the timer, makes a difference between the second time and the first time, judges whether the time difference is smaller than the set time threshold value, if so, generates a second trigger signal, clears the timer, waits for a moment when the next pressure value exceeds the pressure threshold value, and restarts.
6. The intelligent switching control system according to claim 5, wherein the switching process of the switching unit specifically includes: and when the second trigger signal is received, the timing time period of the timer is received at the same time, whether the pressing operation of the first trigger signal is within the timing time period is checked, if so, a trigger signal is generated, and the trigger signal is used for controlling the keyboard to be switched from controlling the first host equipment to controlling the second host equipment.
7. The intelligent control system according to claim 6, wherein the switching unit includes a frequency switching module, and the frequency switching module switches the first transmission frequency of the keyboard to a preset second transmission frequency after receiving the switching instruction of the control unit, where the first transmission frequency is correspondingly connected to the first host device, and the second transmission frequency is correspondingly connected to the second host device.
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