CN111522282B - Electronic product with shuttle flying knob - Google Patents

Electronic product with shuttle flying knob Download PDF

Info

Publication number
CN111522282B
CN111522282B CN202010461617.9A CN202010461617A CN111522282B CN 111522282 B CN111522282 B CN 111522282B CN 202010461617 A CN202010461617 A CN 202010461617A CN 111522282 B CN111522282 B CN 111522282B
Authority
CN
China
Prior art keywords
interface
pin
shuttle
knob
gpio
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202010461617.9A
Other languages
Chinese (zh)
Other versions
CN111522282A (en
Inventor
李剑波
邬剑鸣
高云飞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Institute of Radio Measurement
Original Assignee
Beijing Institute of Radio Measurement
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Institute of Radio Measurement filed Critical Beijing Institute of Radio Measurement
Priority to CN202010461617.9A priority Critical patent/CN111522282B/en
Publication of CN111522282A publication Critical patent/CN111522282A/en
Application granted granted Critical
Publication of CN111522282B publication Critical patent/CN111522282B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • G05B19/0423—Input/output
    • 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
    • G05B2219/00—Program-control systems
    • G05B2219/20—Pc systems
    • G05B2219/24—Pc safety
    • G05B2219/24215—Scada supervisory control and data acquisition

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Input From Keyboards Or The Like (AREA)

Abstract

The invention relates to an electronic product with a shuttle flying knob, comprising: the flying shuttle comprises a flying shuttle knob, an interface circuit and a microprocessor; and the GPIO interface and the AD interface of the microprocessor are connected with corresponding pins of the shuttle flying knob through the interface circuit. The electronic product with the shuttle flying knob provided by the embodiment of the invention simultaneously uses the GPIO interface and the AD interface to obtain the pin information of the same pin of the shuttle flying knob, judges whether the pin information obtained by the GPIO interface is correct or not according to the pin information obtained by the AD interface, and determines whether to use the GPIO interface to obtain the output state of the shuttle flying knob or obtain the output state of the shuttle flying knob through the AD interface according to the judgment result. The technical problem that in the prior art, the output voltage value changes due to different types and specifications of the shuttle flying knob or the deterioration of hardware, so that program misjudgment is caused is solved, the reliability of the hardware is improved, and the service life is prolonged.

Description

Electronic product with shuttle flying knob
Technical Field
The invention relates to the technical field of electronic products, in particular to an electronic product with a shuttle flying knob.
Background
The shuttle flying knob is used as one of hardware peripherals and is mainly used for collecting control information of a user and realizing the control function of the user on the processor through man-machine interaction. The more sensitive the control of the shuttle knob, the more friendly the use experience of the user, and the shuttle knob can enable the user to conveniently control the switching of the option information, the addition and subtraction of the numerical value information and the like.
In the prior art, a microprocessor generally reads the high and low levels of a shuttle knob directly through a GPIO interface. However, the output voltage value of the shuttle knob changes due to different types and specifications or the aged hardware, which may cause program misjudgment, so that the microprocessor cannot accurately judge the state of the shuttle knob, thereby greatly reducing the use reliability of the shuttle knob and shortening the service life.
Disclosure of Invention
The invention aims to solve the technical problem in the prior art and provides an electronic product with a shuttle flying knob.
In order to solve the above technical problem, an embodiment of the present invention provides an electronic product with a shuttle knob, including: the flying shuttle comprises a flying shuttle knob, an interface circuit and a microprocessor; the GPIO interface and the AD interface of the microprocessor are connected with corresponding pins of the shuttle flying knob through the interface circuit;
during initialization, the microprocessor reads pin information acquired by the GPIO interface and pin information of the same pin acquired by the AD interface at regular time, compares the pin information acquired by the GPIO interface with the pin information of the same pin acquired by the AD interface, and determines that the pin information of the pin is acquired through the GPIO interface or the AD interface when the shuttle flying knob is used according to a comparison result.
The invention has the beneficial effects that: the embodiment of the invention simultaneously uses the GPIO interface and the AD interface to obtain the pin information of the same pin of the shuttle flying knob, judges whether the pin information obtained by the GPIO interface is correct or not according to the pin information obtained by the AD interface, and determines whether to use the GPIO interface to obtain the output state of the shuttle flying knob or obtain the output state of the shuttle flying knob through the AD interface according to the judgment result. The technical problem that in the prior art, the output voltage value changes due to different types and specifications of the shuttle flying knob or the deterioration of hardware, so that program misjudgment is caused is solved, the reliability of the hardware is improved, and the service life is prolonged.
Additional aspects of the invention and its advantages will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a schematic diagram of an interface circuit for connecting a shuttle knob and a microprocessor according to an embodiment of the present invention.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
Fig. 1 is a schematic diagram of an interface circuit for connecting a shuttle knob and a microprocessor according to an embodiment of the present invention. The electronic product with the shuttle flying knob provided by the embodiment of the invention comprises: shuttle knob 100, interface circuit 200, and microprocessor 300; the GPIO interface and the AD interface of the microprocessor 300 are connected to corresponding pins of the shuttle knob 100 through the interface circuit 2000.
During initialization, the microprocessor 300 reads the pin information acquired by the GPIO interface and the pin information of the same pin acquired by the AD interface at regular time, compares the pin information acquired by the GPIO interface with the pin information of the same pin acquired by the AD interface, and determines that the pin information of the pin is acquired through the GPIO interface or the AD interface when the shuttle flying knob 100 is used according to the comparison result.
In this embodiment, the microprocessor 300 may employ STM 32. The STM32 is a 32-bit microcontroller and microprocessor product based on ARM Cortex kernel, which integrates high performance, real-time performance, digital signal processing, low power consumption and low voltage, and maintains the characteristics of high integration level and simple development. Based on an industrial standard processor and a large number of software and hardware development tools, the system becomes a solution for various small and medium-sized projects and complete platforms. An STM32 is used as a core processor of the STM 32-based embedded software platform, hardware control and information interaction are completed by connecting various hardware peripherals, and man-machine interaction of the embedded platform is realized by processing a signal processing program in STM 32.
In the electronic product with the shuttle flying knob provided by the above embodiment, the GPIO interface and the AD interface are used to obtain pin information of the same pin of the shuttle flying knob, the pin information obtained by the AD interface is used to determine whether the pin information obtained by the GPIO interface is correct, and it is determined according to the determination result whether to obtain the output state of the shuttle flying knob by using the GPIO interface or obtain the output state of the shuttle flying knob by using the AD interface. The technical problem that in the prior art, the output voltage value changes due to different types and specifications of the shuttle flying knob or the deterioration of hardware, so that program misjudgment is caused is solved, the reliability of the hardware is improved, and the service life is prolonged.
Optionally, in an embodiment, during initialization, the microprocessor 300 periodically reads pin information obtained by the GPIO interface and pin information of the same pin obtained by the AD interface, compares the pin information obtained by the GPIO interface and the pin information of the same pin obtained by the AD interface, and determines that the pin information of the pin is obtained through the GPIO interface when the flying shuttle knob 100 is used if the pin information obtained by the GPIO interface and the pin information obtained by the AD interface are the same for a preset number of times, otherwise, obtains the pin information of the pin through the AD interface.
In the embodiment, whether the pin states (0 and 1) of the shuttle flying knob can be correctly read by the GPIO is judged by using the pin information acquired by the AD interface, if the GPIO is correct, the GPIO is used to close the AD interface, and the GPIO interface is fast to read and has low power consumption, so that the time of a main program and the power consumption can be reduced. And if the GPIO interface is incorrect, the AD interface is used to close the GPIO interface. The output state of the shuttle knob is judged by reading the AD value. Therefore, the problem that in the prior art, the output voltage value changes due to different types and specifications of the shuttle flying knob or the deterioration of hardware, so that program misjudgment is caused can be solved. The reliability and the service life of hardware are improved.
Optionally, in an embodiment, when pin information of the pin is acquired through an AD interface, a voltage value corresponding to the pin information of the pin acquired through the AD interface is compared with a threshold voltage, and when the voltage value is higher than the threshold voltage value, it is determined that the output of the shuttle knob is a high level, otherwise, the output is a low level. The voltage value of the threshold voltage may be one half of the power supply voltage. In this embodiment, the power supply voltage is 3.3V, and the threshold voltage is set to 3.3V/2 — 1.65V.
Optionally, in one embodiment, the interface circuit includes a plug connector and a current-limiting protection circuit, the plug connector includes six pins, the six pins are respectively connected with the six pins of the shuttle flying knob, a first pin and a second pin of the plug connector are grounded, and a third pin is connected with a first AD interface and a first GPIO interface of the microprocessor; the fourth pin is connected with a second AD interface and a second GPIO interface of the microprocessor; the fifth pin is connected with a third AD interface and a third GPIO interface of the microprocessor; the sixth pin is connected with a power supply end; one end of the current-limiting protection circuit is connected with a power supply end, and the other end of the current-limiting protection circuit is connected with a connecting line between the microprocessor and the plug connector.
The current-limiting protection circuit comprises a first resistor R1, a second resistor R2 and a third resistor R3, the third pin is connected with the power supply end through the first resistor R1, the fourth pin is connected with the power supply end through the second resistor R2, and the fifth pin is connected with the power supply end through the third resistor R3. Among them, the resistor R1, the resistor R2, and the resistor R3 may be selected to have a large resistance of 2.2k Ω.
The microprocessor 300 determines whether the shuttle knob is in a pressed state according to the pin information of the third pin, and determines the rotation direction and the rotation speed of the shuttle knob according to the pin information of the fourth pin and the pin information of the fifth pin.
During initialization, the microprocessor regularly acquires third pin information through a first GPIO (GPIO1) and a first AD (analog-to-digital) interface (AD1), compares the third pin information acquired by the first GPIO interface with the third pin information acquired by the first AD interface, determines that the pin information of the third pin is acquired through the first GPIO interface when the shuttle flying knob is used if the pin information acquired by the first GPIO interface and the third pin information acquired by the first AD interface are the same for a preset number of times, and closes the first AD interface, otherwise, acquires the pin information of the third pin through the first AD interface and closes the first GPIO interface;
during initialization, the microprocessor acquires fourth pin information at regular time through a second GPIO interface (GPIO2) and a second AD interface (AD2), compares the fourth pin information acquired through the second GPIO interface with the fourth pin information acquired through the second AD interface, determines that the pin information of the fourth pin is acquired through the second GPIO interface when the flying shuttle knob is used if the pin information acquired through the second GPIO interface and the fourth pin information acquired through the second AD interface are the same for a preset number of times, and closes the second AD interface, otherwise, acquires the pin information of the fourth pin through the second AD interface and closes the second GPIO interface.
During initialization, the microprocessor acquires fifth pin information at regular time through a third GPIO interface (GPIO3) and a third AD interface (AD3), compares the fifth pin information acquired by the third GPIO interface with the fifth pin information acquired by the third AD interface, determines that the pin information of the fifth pin is acquired through the third GPIO interface when the shuttle flying knob is used if the pin information acquired by the third GPIO interface and the pin information acquired by the third AD interface are the same for a preset number of times, and closes the third AD interface, otherwise, acquires the pin information of the fifth pin through the third AD interface and closes the third GPIO interface.
Specifically, as shown in fig. 1, three GPIO interfaces of STM32 are used to connect pins 3(PUSHBUTTON), 4(OUTPUT a), and 5(OUTPUT B) of the shuttle knob, respectively; and meanwhile, three AD interfaces of the STM32 are used for connecting three pins 3, 4 and 5 of the shuttle flying knob and performing pull-up protection. Namely, one GPIO and one AD interface are simultaneously connected with one pin of the shuttle flying knob, and the total number of the pins is three. And determining the threshold voltage of the AD interface, namely judging that the output of the shuttle flying knob is high level when the AD value exceeds the threshold voltage, and otherwise, judging that the output of the shuttle flying knob is low level. In this embodiment, a 3.3V power supply is used, and a large-resistance resistor is used for dividing, and it is approximately considered that all the voltage is divided equally on the interface, so the threshold voltage is set to 3.3V/2-1.65V, which is half of the maximum voltage value of the actual interface, determined according to the power supply voltage and the dividing manner of the actual circuit.
The flying shuttle knob key interface is realized as follows:
a) the pin information of the 3 Pin (PUSHBUTTON) is read at regular time through the GPIO interface of STM32 to know whether the user presses the knob at the moment. The state is not pressed when the high level is high, the state is pressed when the low level is low, and the state of the recording interface is GPIO 3;
b) the voltage of the 3 Pin (PUSHBUTTON) is read in a timing mode through an AD interface of the STM32, and whether a user presses a knob at the moment is known. When the voltage exceeds the threshold voltage, no pressing is carried out, when the voltage is lower than the threshold voltage, the threshold voltage is in a pressing state, and the state of the recording interface is AD 3.
The above procedure is timed to be the same timer, a) and b) are performed once per timer trigger, and GPIOs 3 and AD3 are recorded.
By comparing the two recorded values GPIO3 and AD3, if the two recorded values are the same for 100 times continuously, the GPIO interface is correct, the GPIO interface is used, the AD interface is closed, namely the GPIO interface is subsequently used to acquire 3-pin information; if the two are different in 100 continuous times, the GPIO interface is wrong, the AD interface is used, the GPIO interface is closed, and the 3-pin information is acquired by the AD interface subsequently.
The flying shuttle knob rotary interface is realized as follows:
a) the pin information of the 4 pin (OUTPUT a) and the 5 pin (OUTPUT B) is read at regular time through the GPIO interface of the STM32, and the position information of the knob at that time is judged and recorded. The rotation direction of the knob by the user is obtained by comparing the change of the external information twice. The speed of the user rotation is known by the time interval of the position change. The recording interface states are GPIO4 and GPIO 5.
b) Through the AD interface of STM32, the voltage values of the 4 pin (OUTPUT A) and the 5 pin (OUTPUT B) are read at regular time and time, compared with the threshold voltage, and the position information of the knob at the moment is judged and recorded. The rotation direction of the knob by the user is obtained by comparing the change of the external information twice. The speed of the user rotation is known by the time interval of the position change. The recording interface states are AD4, AD 5.
The above procedure is timed to be the same timer, a) and b) are performed once for each timer trigger, and GPIO4, GPIO5 and AD4, AD5 are recorded.
Comparing two recorded values, namely GPIO4, GPIO5, AD4 and AD5, wherein if the two recorded values are the same for 100 times (GPIO4 is AD4, and GPIO5 is AD5), the GPIO interface is free of errors, the AD interface is closed by using the GPIO interface, namely the pin information of 4 pins and 5 pins is acquired by using the GPIO interface subsequently; if the two are different in 100 continuous times, the GPIO interface is wrong, the AD interface is used, the GPIO interface is closed, and therefore pin information of the 4 pins and the 5 pins is obtained through the AD interface subsequently.
When the button is pressed, the voltage of the 3 pin is also pulled to be low because the 2 pin is grounded. That is, pin 3 is high when not pressed and low when pressed.
The embedded software program in STM32 would periodically (e.g., 5ms period) read output a and output B of the shuttle knob.
And recording the current position code, comparing the current position code with the last position code, and rotating the shuttle if the position code changes.
If the change is: one of the codes 0- >1- >3- >2- >0, namely, the shuttle rotates one lattice clockwise (increment).
The time taken for the shuttle to rotate clockwise one grid (timing times 5ms) is calculated, the larger the value, the slower the shuttle rotates, and the smaller the value, the faster the shuttle rotates.
If the change is: one of the codes 0- >2- >3- >1- >0, namely, the shuttle rotates counterclockwise (increment) by one lattice. The velocity is calculated in the same manner as in the clockwise case.
The embedded software in the STM32 main processor reads the information of the shuttle knob at regular time through the above-mentioned key interface 3(PUSHBUTTON) and the rotary interfaces 4(OUTPUT a) and 5(OUTPUT B), completes the information processing in the main processing program, and obtains whether the user presses a key, rotates direction and rotates speed. Through deburring processing, optimize user's single button information to according to the rotation speed of difference, provide the numerical value change of equidimension not, make the user change and control numerical value class information conveniently.
The electronic product with the shuttle knob provided by the embodiment of the invention realizes the function of the shuttle knob based on STM32, conveniently controls the switching of option information, the addition and subtraction of numerical value information and the like, can adapt to different types of shuttle knobs due to the dual-interface design (GPIO and AD), improves the accuracy, and solves the problem of program misjudgment caused by the change of the output value of the shuttle knob due to hardware aging. The market application range of the shuttle flying knob of the embedded software platform is expanded, and the good social and economic effects are achieved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (6)

1. An electronic product with a shuttle knob, comprising: the flying shuttle comprises a flying shuttle knob, an interface circuit and a microprocessor; the GPIO interface and the AD interface of the microprocessor are connected with corresponding pins of the shuttle flying knob through the interface circuit;
during initialization, the microprocessor reads pin information acquired by the GPIO interface and pin information of the same pin acquired by the AD interface at regular time, compares the pin information acquired by the GPIO interface with the pin information of the same pin acquired by the AD interface, and determines that the pin information of the pin is acquired through the GPIO interface or the AD interface when the shuttle flying knob is used according to a comparison result;
when the comparison result shows that the pin information obtained by the GPIO interface and the AD interface is the same for the continuous preset times, determining that the pin information of the pin is obtained through the GPIO interface when the shuttle flying knob is used, and otherwise, obtaining the pin information of the pin through the AD interface; judging whether the GPIO can correctly read the pin states '0' and '1' of the shuttle flying knob by using pin information acquired by the AD interface, and if the GPIO is correct, closing the AD interface by using the GPIO interface; if the GPIO interface is incorrect, the AD interface is used, and the GPIO interface is closed;
when the pin information of the pin is acquired through the AD interface, comparing a voltage value corresponding to the pin information of the pin acquired through the AD interface with a threshold voltage, and when the voltage value is higher than the threshold voltage value, determining that the output of the shuttle flying knob is a high level, otherwise, determining that the output is a low level.
2. The flying shuttle knob according to claim 1, wherein said threshold voltage has a voltage value of one half of a power supply voltage.
3. The electronic product with the shuttle flying knob according to any one of claims 1 to 2, wherein the interface circuit comprises a plug connector and a current limiting protection circuit, the plug connector comprises six pins, the six pins are respectively connected with the six pins of the shuttle flying knob, a first pin and a second pin of the plug connector are grounded, and a third pin is connected with a first AD interface and a first GPIO interface of the microprocessor; the fourth pin is connected with a second AD interface and a second GPIO interface of the microprocessor; the fifth pin is connected with a third AD interface and a third GPIO interface of the microprocessor; the sixth pin is connected with a power supply end; one end of the current-limiting protection circuit is connected with a power supply end, and the other end of the current-limiting protection circuit is connected with a connecting line between the microprocessor and the plug connector.
4. The electronic product with a shuttle knob according to claim 3, wherein said current limiting protection circuit comprises a first resistor, a second resistor and a third resistor, said third pin is connected to said power source terminal through said first resistor, said fourth pin is connected to said power source terminal through said second resistor, and said fifth pin is connected to said power source terminal through said third resistor.
5. The electronic product with a shuttle knob according to claim 3, wherein the microprocessor determines whether the shuttle knob is in a pressed state according to the pin information of the third pin, and determines the rotation direction and the rotation speed of the shuttle knob according to the pin information of the fourth pin and the pin information of the fifth pin.
6. An electronic product with a shuttle knob according to any one of claims 1 to 2 and 4 to 5, wherein the microprocessor employs STM 32.
CN202010461617.9A 2020-05-27 2020-05-27 Electronic product with shuttle flying knob Active CN111522282B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010461617.9A CN111522282B (en) 2020-05-27 2020-05-27 Electronic product with shuttle flying knob

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010461617.9A CN111522282B (en) 2020-05-27 2020-05-27 Electronic product with shuttle flying knob

Publications (2)

Publication Number Publication Date
CN111522282A CN111522282A (en) 2020-08-11
CN111522282B true CN111522282B (en) 2021-04-27

Family

ID=71906836

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010461617.9A Active CN111522282B (en) 2020-05-27 2020-05-27 Electronic product with shuttle flying knob

Country Status (1)

Country Link
CN (1) CN111522282B (en)

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2452051Y (en) * 2000-09-27 2001-10-03 北京汉王科技有限公司 Hand writing board with fly shuttle
US20110099421A1 (en) * 2009-09-30 2011-04-28 Alessandro Geist Radiation-hardened hybrid processor
CN205426249U (en) * 2016-03-25 2016-08-03 智恒科技股份有限公司 Water gauge pulse signal measurement system based on suspend and AD sampling
CN206353778U (en) * 2016-12-19 2017-07-25 上海肯特仪表股份有限公司 The key circuit of electromagnetic flowmeter
CN206505161U (en) * 2017-02-17 2017-09-19 珠海瑞德电子科技有限公司 A kind of new and effective key-press status detection circuit
CN107589933B (en) * 2017-09-06 2024-04-09 大唐终端技术有限公司 Knob type digital coding switch device and working state identification method thereof
CN207623404U (en) * 2017-12-21 2018-07-17 济南吉美乐电源技术有限公司 A kind of digital table of novel simple electric parameter acquisition
CN207717935U (en) * 2017-12-27 2018-08-10 金卡智能集团股份有限公司 Switching signal detection circuit with self-diagnostic function
CN108020698A (en) * 2017-12-29 2018-05-11 江苏林洋能源股份有限公司 A kind of ESD high-voltage detecting circuits and method for electrical energy meter anti-theft electricity
CN208383340U (en) * 2018-05-08 2019-01-15 广东万和电气有限公司 A kind of circuit reducing temperature sensor high/low temperature error
IT201800005511A1 (en) * 2018-05-18 2019-11-18 RESET CIRCUIT, CORRESPONDING DEVICE AND PROCEDURE
CN209117826U (en) * 2018-09-26 2019-07-16 广州求远电子科技有限公司 Key-press status detection circuit
CN210272157U (en) * 2019-08-27 2020-04-07 菲士医学仪器(上海)有限公司 Rotating flying shuttle key of medical equipment
CN111025956B (en) * 2019-10-30 2023-12-08 九阳股份有限公司 Key recognition circuit of food processor

Also Published As

Publication number Publication date
CN111522282A (en) 2020-08-11

Similar Documents

Publication Publication Date Title
EP3674668B1 (en) Multi-turn absolute encoder, encoding method and robot
CN108351668A (en) A kind of the wearing state determination method and wearable device of wearable device
CN105045386A (en) Sleeping state monitoring method, sleeping state monitoring terminal and air conditioner system
US20060238205A1 (en) Directional capacitive sensor system and method
JP2010530661A (en) Switch debounce device and method
CN103836681A (en) Cookware detection method for electromagnetic range and electromagnetic range
WO2022135220A1 (en) Control method and system for adjusting vibration frequency on the basis of pressure, and storage medium
CN111522282B (en) Electronic product with shuttle flying knob
CN111025956A (en) Food preparation machine's button identification circuit
CN111493741B (en) Dust box detection method and device, electronic equipment and computer readable storage medium
CN107666323B (en) Switch button scanning circuit and electric equipment
CN108873763A (en) Operating mode adjusting method, device and equipment
KR101671956B1 (en) Device and method for resetting of system
CN113433406B (en) Key detection circuit and terminal equipment
CN114325481B (en) Power-off duration detection method and device, electronic equipment and storage medium
CN211554238U (en) Key detection circuit, touch screen and heating and ventilation equipment
CN113126813B (en) Correction method and device for key misjudgment, terminal equipment and storage medium
CN204536794U (en) A kind of multiple-pulse potentiometer control device
CN110488705A (en) The method for triggering identification rotary coding switch based on global interrupt
CN110995230B (en) Touch key processing method of food processor
CN102307101A (en) Method and device for processing dynamic token and trigger signal of dynamic token
CN209086410U (en) A kind of DC stepper motor tester
CN108151816A (en) A kind of magnetic passes electronic water meter and its metering method
CN107831696B (en) IRIG-B direct current code decoding method
CN112325449B (en) Remote controller, control method thereof, home appliance control system, and computer-readable storage medium

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant