CN107894725A - A kind of method of key switch multiplexing - Google Patents
A kind of method of key switch multiplexing Download PDFInfo
- Publication number
- CN107894725A CN107894725A CN201711115272.6A CN201711115272A CN107894725A CN 107894725 A CN107894725 A CN 107894725A CN 201711115272 A CN201711115272 A CN 201711115272A CN 107894725 A CN107894725 A CN 107894725A
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- Prior art keywords
- button
- switch
- main control
- control processor
- interrupt
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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
- 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
- G05B2219/21—Pc I-O input output
- G05B2219/21113—Bus interface has multiplexer, control register, data shift register
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Selective Calling Equipment (AREA)
Abstract
The invention discloses a kind of method of key switch multiplexing, the described method comprises the following steps：Step S1, it is that the button sets corresponding preset function using main control processor, and the switch time of every kind of preset function and button is corresponded；Step S2, start button scanning imaging system, and set counter to be monitored the switch time of button；Step S3, when detecting the switch motion of button, counter starts timing, and the switch motion time T of the switch motion of button is obtained, main control processor is according to switch motion time of acquisition and triggers interrupt control unit, and preset function corresponding to button is completed finally by driving relay.Using the present invention can efficiently solve the instrument such as multifunction electric meter because locus is small can not multiple buttons be set the problem of, in the practicality for effectively increasing equipment simultaneously, can also reduce the cost of equipment.
Description
Technical field
The present invention relates to technical field of switch control, more particularly to a kind of method of key switch multiplexing.
Background technology
Key switch is primarily referred to as touch key switch, touch-switch is also, because it has contact resistance lotus small, accurate
The advantage of operating physical force error, multi-size etc., is widely used in electronic equipment and white domestic appliances etc..It is logical
Crossing the various orders of key switch input, character etc. can control effectively to equipment, such as the switching on and shutting down in electronic equipment, and one
There can be multiple key switches in kind equipment, but for the equipment of small volume, because locus deficiency is typically on its panel
One key switch can only be set, such as single-phase, three-phase multifunctional electrical energy meter.Now to realize all of device-dependent key switch
Function, just key switch is needed to be multiplexed, i.e., a key switch realizes multiple functions.
The content of the invention
For overcome the deficiencies in the prior art and the problem of exist, the present invention provides a kind of method of key switch multiplexing, will
This method is applied on the instrument and meters such as multifunctional electric energy meter, may be such that a button turns into multifunction push key.
The present invention is achieved by the following technical solutions：A kind of method of key switch multiplexing, methods described include with
Lower step：
Step S1, it is that the button sets corresponding preset function using main control processor, and by every kind of preset function and button
Switch time corresponded；
Step S2, start button scanning imaging system, and set counter to be monitored the switch time of button；
Step S3, when detecting the switch motion of button, counter starts timing, and obtains the switch of the switch motion of button
Actuation time T, main control processor is according to switch motion time of acquisition and triggers interrupt control unit, finally by driving after
Electrical equipment completes preset function corresponding to button.
Preferably, in the step S3, when detecting key switch action, main control processor produces hardware interrupts and held
Row interrupt service routine, the interrupt register state flag bit of button is will be mapped to after interrupt routine operation, and in memory
A state variable is set to indicate the state of respective keys.
Preferably, it is that the concrete function that the button is set includes using main control processor in the step S1：Short-press is pressed
Key is function of operating a switch, and the long-press button T1 seconds are closure function, has button to press in the T2 seconds after relay disconnects and learns work(to be local
Can, flicking button is local removing function when relay closes a floodgate；Wherein, T1 is less than T2；The short-press refers to the time less than T1's
Button operation.
Preferably, the step S3 has been specifically included：
Step S31, when detect key switch be switched to from relay "on" position operate a switch state when, by main control processor
The interrupt signal that interrupt control unit obtains, is encoded to interrupt identification corresponding to button, and be passed to master control by interrupt pin
Processor；
Step S32, searched by main control processor and interrupt service list, started and interrupt respective interrupt service journey in service list
Sequence；
Step S33, main control processor sets white list to contrast program, and whether the loading of detection institute is matched in white list
Load；
If step S34, white list mismatches, interrupt processing processing routine operation rear-guard motor type relay, and be by its Status Flag
Operate a switch；If white list matches, processor will start Uulearning function, reject white list load, and drive relay by its state
It is masked as operating a switch；
Step S35, when detecting that button is switched to "on" position from the relay state of operating a switch, interrupt control unit, transmission are triggered
Interrupt signal；
Step S36, main control processor read switch actuation time T, it is complete according to the switch motion time T length, driving relay
Into preset function corresponding to button：
As T ＜ T1, main control processor will start local learning functionality, will accordingly load and be added in white list；
Between when reading during T1≤T≤T2, main control processor will first start local learning functionality, and respective load is added into white name
Dan Hou, then drive relay by its Status Flag for close a floodgate；
As T ＞ T2, main control processor closes a floodgate its Status Flag driving relay.
It is preferred that the T1 is 3 seconds, the T2 is 5 seconds；The main control processor is single-chip microcomputer.
The method that key switch provided by the invention is multiplexed is applied in the instrument such as multifunction electric meter, and button can be achieved
Be multiplexed function, can efficiently solve the instrument such as multifunction electric meter because locus is small can not multiple buttons be set the problem of,
In the practicality for effectively increasing equipment simultaneously, the cost of equipment can also be reduced.
Brief description of the drawings
Fig. 1 is the step schematic flow sheet of the method for the invention.
Fig. 2 is the schematic flow sheet that methods described of the embodiment of the present invention is applied to the instrument such as multifunction electric meter.
Embodiment
For the ease of the understanding of those skilled in the art, the present invention is made below in conjunction with the drawings and specific embodiments further
It is described in detail.
As shown in Figure 1, a kind of method of key switch multiplexing, the described method comprises the following steps：
Step S1, it is that the button sets corresponding preset function using main control processor, and by every kind of preset function and button
Switch time corresponded；
Step S2, start button scanning imaging system, and set counter to be monitored the switch time of button；
Step S3, when detecting the switch motion of button, counter starts timing, and obtains the switch of the switch motion of button
Actuation time T, main control processor is according to switch motion time of acquisition and triggers interrupt control unit, finally by driving after
Electrical equipment completes preset function corresponding to button.
As preferred embodiment, in the step S3, when detecting key switch action, main control processor produces hard
Part is interrupted and performs interrupt service routine, and the interrupt register state flag bit of button is will be mapped to after interrupt routine operation, and
A state variable is set to indicate the state of respective keys in memory.
In the present embodiment, included in the step S1 using the concrete function that main control processor is button setting：It is short
It is function of operating a switch by button, the long-press button T1 seconds are closure function, have button to press for local in the T2 seconds after relay disconnects
Function is practised, flicking button is local removing function when relay closes a floodgate；Wherein, T1 is less than T2, and the short-press refers to that the time is less than
T1 button operation.Wherein, the T1 is preferably 3 seconds, and the T2 is preferably 5 seconds, and the button operation less than 3 seconds can be considered short
By operation, the short-press operation in the present embodiment is preferably less than the button operation of 1 second.In addition, the main control processor is preferably
Single-chip microcomputer.It should be noted that the T1 and T2 value can be configured according to being actually needed, if T1 and T2 can be respectively 2
Second and 4 seconds etc..
In a wherein preferred embodiment, the step S3 has been specifically included：
Step S31, when detect key switch be switched to from relay "on" position operate a switch state when, by main control processor
The interrupt signal that interrupt control unit obtains, is encoded to interrupt identification corresponding to button, and be passed to master control by interrupt pin
Processor；
Step S32, searched by main control processor and interrupt service list, started and interrupt respective interrupt service journey in service list
Sequence；
Step S33, main control processor sets white list to contrast program, and whether the loading of detection institute is matched in white list
Load；
If step S34, white list mismatches, interrupt processing processing routine operation rear-guard motor type relay, and be by its Status Flag
Operate a switch；If white list matches, processor will start Uulearning function, reject white list load, and drive relay by its state
It is masked as operating a switch；
Step S35, when detecting that button is switched to "on" position from the relay state of operating a switch, interrupt control unit, transmission are triggered
Interrupt signal；
Step S36, main control processor read switch actuation time T, it is complete according to the switch motion time T length, driving relay
Into preset function corresponding to button：
As T ＜ T1, main control processor will start local learning functionality, will accordingly load and be added in white list；
Between when reading during T1≤T≤T2, main control processor will first start local learning functionality, and respective load is added into white name
Dan Hou, then drive relay by its Status Flag for close a floodgate；
As T ＞ T2, main control processor closes a floodgate its Status Flag driving relay.
The method that key switch provided in an embodiment of the present invention is multiplexed is applied to the flow chart of the instrument such as multifunction electric meter
As shown in Figure 2, using the present invention, the multiplexing function of button can be achieved, effectively solve the instrument such as multifunction electric meter because of space bit
Put it is small and the problem of multiple buttons can not be set, in the practicality for effectively increasing equipment simultaneously, also reduce the cost of equipment.
Above-described embodiment is the preferable implementation of the present invention, is not limited to the present invention, is not departing from this hair
It is any obviously to replace within protection scope of the present invention on the premise of bright inventive concept.
Claims (6)
1. a kind of method of key switch multiplexing, the described method comprises the following steps：
Step S1, it is that the button sets corresponding preset function using main control processor, and by every kind of preset function and button
Switch time corresponded；
Step S2, start button scanning imaging system, and set counter to be monitored the switch time of button；
Step S3, when detecting the switch motion of button, counter starts timing, and obtains the switch of the switch motion of button
Actuation time T, main control processor is according to switch motion time of acquisition and triggers interrupt control unit, finally by driving after
Electrical equipment completes preset function corresponding to button.
2. according to the method for claim 1, it is characterised in that：In the step S3, when detecting key switch action,
Main control processor produces hardware interrupts and performs interrupt service routine, and the interruption deposit of button is will be mapped to after interrupt routine operation
Device state flag bit, and a state variable is set to indicate the state of respective keys in memory.
3. according to the method for claim 2, it is characterised in that using main control processor be the button in the step S1
The concrete function of setting includes：For short-press button to operate a switch function, the long-press button T1 seconds be closure function, the T2 seconds after relay disconnection
Inside there is button to press for local learning functionality, flicking button is local removing function when relay closes a floodgate；Wherein, T1 is less than T2,
The short-press refers to that the time is less than T1 button operation.
4. according to the method for claim 3, it is characterised in that the step S3 has been specifically included：
Step S31, when detect key switch be switched to from relay "on" position operate a switch state when, by main control processor
The interrupt signal that interrupt control unit obtains, is encoded to interrupt identification corresponding to button, and be passed to master control by interrupt pin
Processor；
Step S32, searched by main control processor and interrupt service list, started and interrupt respective interrupt service journey in service list
Sequence；
Step S33, main control processor sets white list to contrast program, and whether the loading of detection institute is matched in white list
Load；
If step S34, white list mismatches, interrupt processing processing routine operation rear-guard motor type relay, and be by its Status Flag
Operate a switch；If white list matches, processor will start Uulearning function, reject white list load, and drive relay by its state
It is masked as operating a switch；
Step S35, when detecting that button is switched to "on" position from the relay state of operating a switch, interrupt control unit, transmission are triggered
Interrupt signal；
Step S36, main control processor read switch actuation time T, it is complete according to the switch motion time T length, driving relay
Into preset function corresponding to button：
As T ＜ T1, main control processor will start local learning functionality, will accordingly load and be added in white list；
Between when reading during T1≤T≤T2, main control processor will first start local learning functionality, and respective load is added into white name
Dan Hou, then drive relay by its Status Flag for close a floodgate；
As T ＞ T2, main control processor closes a floodgate its Status Flag driving relay.
5. according to the method for claim 4, it is characterised in that：The T1 is 3 seconds, and the T2 is 5 seconds.
6. the method according to any one in Claims 1 to 5, it is characterised in that：The main control processor is single-chip microcomputer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711115272.6A CN107894725A (en) | 2017-11-13 | 2017-11-13 | A kind of method of key switch multiplexing |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711115272.6A CN107894725A (en) | 2017-11-13 | 2017-11-13 | A kind of method of key switch multiplexing |
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| CN107894725A true CN107894725A (en) | 2018-04-10 |
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| CN201711115272.6A Pending CN107894725A (en) | 2017-11-13 | 2017-11-13 | A kind of method of key switch multiplexing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109613312A (en) * | 2018-12-18 | 2019-04-12 | 宁波三星智能电气有限公司 | A kind of ammeter exchange method based on menu |
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| CN1779728A (en) * | 2004-11-23 | 2006-05-31 | 厦门华侨电子企业有限公司 | Studying remote control method and device for household electrical appliances |
| CN1900886A (en) * | 2006-06-16 | 2007-01-24 | 李一新 | Method for single click and multiple key combining click mixing input Chinese and English and keyboard |
| CN101727196A (en) * | 2008-10-20 | 2010-06-09 | 普天信息技术研究院有限公司 | Character input method with self-learning function |
| CN101776965A (en) * | 2009-01-12 | 2010-07-14 | 宏达国际电子股份有限公司 | Method and system for dynamically studying input characteristics of software keyboard |
| CN103279203A (en) * | 2013-03-28 | 2013-09-04 | 深圳市共进电子股份有限公司 | Key reuse method and multifunctional key |
| CN104915203A (en) * | 2015-06-08 | 2015-09-16 | 苏州西顿家用自动化有限公司 | Automatic cooking program generating method of intelligent stove |
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2017
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060058995A1 (en) * | 2004-08-31 | 2006-03-16 | Vadim Fux | Handheld electronic device with text disambiguation |
| CN1779728A (en) * | 2004-11-23 | 2006-05-31 | 厦门华侨电子企业有限公司 | Studying remote control method and device for household electrical appliances |
| CN1900886A (en) * | 2006-06-16 | 2007-01-24 | 李一新 | Method for single click and multiple key combining click mixing input Chinese and English and keyboard |
| CN101727196A (en) * | 2008-10-20 | 2010-06-09 | 普天信息技术研究院有限公司 | Character input method with self-learning function |
| CN101776965A (en) * | 2009-01-12 | 2010-07-14 | 宏达国际电子股份有限公司 | Method and system for dynamically studying input characteristics of software keyboard |
| CN103279203A (en) * | 2013-03-28 | 2013-09-04 | 深圳市共进电子股份有限公司 | Key reuse method and multifunctional key |
| CN104915203A (en) * | 2015-06-08 | 2015-09-16 | 苏州西顿家用自动化有限公司 | Automatic cooking program generating method of intelligent stove |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109613312A (en) * | 2018-12-18 | 2019-04-12 | 宁波三星智能电气有限公司 | A kind of ammeter exchange method based on menu |
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Application publication date: 20180410 |