CN207706156U - Push button signalling processing circuit for portable three-coordinate measuring machine - Google Patents
Push button signalling processing circuit for portable three-coordinate measuring machine Download PDFInfo
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- CN207706156U CN207706156U CN201721424757.9U CN201721424757U CN207706156U CN 207706156 U CN207706156 U CN 207706156U CN 201721424757 U CN201721424757 U CN 201721424757U CN 207706156 U CN207706156 U CN 207706156U
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- push button
- key switch
- button signalling
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Abstract
The utility model provides a kind of push button signalling processing circuit for portable three-coordinate measuring machine.The push button signalling processing circuit includes：Key switch unit is connected when in pressing state, ends when in release conditions, one end ground connection of the key switch unit；Latch, with first input end, the first output end and second output terminal, the other end of the first input end and the key switch unit is connected at first node；Signal processing unit, it connect with the first node, first output end and the second output terminal respectively, and the signal processing unit is used to generate key operation signal according to the signal at first output end, the second output terminal and the first node.The utility model can improve the accuracy of push button signalling processing.
Description
Technical field
The utility model is related to electronic technology field, more particularly to a kind of button for portable three-coordinate measuring machine is believed
Number processing circuit.
Background technology
Button is widely applied in civilian, industrial, military project every field.The reliability of button is lived with us produces breath manner of breathing
It closes.However, the noise jamming that is generated due to button operation itself and as electronics categories and quantity are increasing, and bring
Wide spectrum, high power electronic noise interference, prodigious uncertainty is brought to button reliable recognition.Especially in complexity
Industrial applications, button is clicked under high interference, long-press, double-click detection become more difficult and unstable.
Therefore, the prior art is defective, needs to improve.
Utility model content
The utility model embodiment provides a kind of push button signalling processing circuit for portable three-coordinate measuring machine, can be with
Put forward the accuracy of push button signalling.
The utility model embodiment provides a kind of push button signalling processing circuit, including：
Key switch unit is connected when in pressing state, ends when in release conditions, and the button is opened
Close one end ground connection of unit；
Latch, with first input end, the first output end and second output terminal, the first input end with it is described
The other end of key switch unit is connected at first node；
Signal processing unit connects with the first node, first output end and the second output terminal respectively
It connects, the signal processing unit is used at according to first output end, the second output terminal and the first node
Signal generates key operation signal.
In push button signalling processing circuit provided by the utility model, the key switch unit include key switch and
Divider resistance, one end ground connection of the key switch, the other end of the key switch pass through the divider resistance and described the
One input terminal connects.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of the push button signalling processing circuit in the utility model embodiment.
Fig. 2 is one of the push button signalling processing method for portable three-coordinate measuring machine in the utility model embodiment
Kind flow chart.
Specific implementation mode
The embodiment of the utility model is described below in detail, the example of the embodiment is shown in the accompanying drawings, wherein
Same or similar label indicates same or similar element or element with the same or similar functions from beginning to end.Lead to below
It crosses the embodiment being described with reference to the drawings to be exemplary, is only used for explaining the utility model, and should not be understood as to this practicality
Novel limitation.
In the description of the present invention, it should be understood that term "center", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside",
The orientation or positional relationship of the instructions such as " clockwise ", " counterclockwise " be based on the orientation or positional relationship shown in the drawings, be only for
Described convenient for description the utility model and simplifying, do not indicate or imply the indicated device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore should not be understood as limiting the present invention.In addition, term " first ",
" second " is used for description purposes only, and is not understood to indicate or imply relative importance or implicitly indicates indicated technology
The quantity of feature.Define " first " as a result, the feature of " second " can explicitly or implicitly include it is one or more
The feature.The meaning of " plurality " is two or more in the description of the present invention, unless otherwise clearly specific
It limits.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, can also be to be electrically connected or can mutually communicate；It can be directly connected, it can also be in
Between medium be indirectly connected, can be the interaction relationship of the connection or two elements inside two elements.For this field
For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention unless specifically defined or limited otherwise, fisrt feature the "upper" of second feature or it
"lower" may include that the first and second features are in direct contact, and can also not be to be in direct contact but lead to including the first and second features
Cross the other characterisation contact between them.Moreover, fisrt feature second feature " on ", " top " and " above " include the
One feature is right over second feature and oblique upper, or is merely representative of fisrt feature level height and is higher than second feature.First is special
Sign second feature " under ", " lower section " and " below " include fisrt feature immediately below second feature and obliquely downward, or only
Indicate that fisrt feature level height is less than second feature.
Following disclosure provides many different embodiments or example is used for realizing the different structure of the utility model.
In order to simplify the disclosure of the utility model, hereinafter the component of specific examples and setting are described.Certainly, they are only
Example, and purpose does not lie in limitation the utility model.In addition, the utility model can in different examples repeat reference numerals
And/or reference letter, this repetition are for purposes of simplicity and clarity, itself not indicate discussed various embodiments
And/or the relationship between setting.In addition, the example for the various specific techniques and material that the utility model provides, but this
Field those of ordinary skill can be appreciated that the application of other techniques and/or the use of other materials.
Fig. 1 is please referred to, Fig. 1 is the push button signalling processing circuit in one embodiment of the utility model, including：
Key switch unit 101 is connected when in pressing state, ends when in release conditions, the button
One end of switch unit 101 is grounded.
Latch 102, with first input end, the first output end and second output terminal, first input end and button
The other end of switch unit 101 is connected at first node.
Signal processing unit 103 is connect respectively with first node, the first output end and second output terminal, at signal
Unit 103 is managed to be used to generate key operation signal according to the signal at the first output end, second output terminal and first node.
Wherein, which includes key switch 1011 and a divider resistance 1012.Key switch 1011
One end ground connection, the other end of key switch 1011 connect by divider resistance 1011 with first input end.
The key switch 1011 includes the first pin, second pin, third pin, the 4th pin.
Fig. 2 is please referred to, Fig. 2 is the push button signalling for portable three-coordinate measuring machine in one embodiment of the utility model
The flow chart of processing method is applied in the push button signalling processing circuit in above-described embodiment, and this method is with calculation procedure
Form is integrated in signal processing unit.This approach includes the following steps：
S201, the first preset time after detecting that the signal of the first output end and second output terminal is overturn
It is interior, when the signal of first output end and second output terminal is not overturn, judge the first output end and the second output
The signal at end whether constant amplitude reverse phase.
In this step, the first output end of latch and second output terminal be in the case of normal overturn,
The signal of two output ends is constant amplitude reverse phase, still, if only because the interference that one of output port occurs makes
Which create energizing signals, and another port does not occur, then can fall the secondary overturning with automatic fitration.
If the signal constant amplitude reverse phase of S202, first output end and second output terminal, obtain at first node
First voltage state.
Wherein, if first output end and the signal of second output terminal not constant amplitude reverse phase, illustrate the pressing operation
In vain, it is likely to be and is generated by external disturbance.
If S203, the first voltage state are low level, the depressed operation of the key switch unit is judged.
Wherein, if the first voltage state is high level, judge that the push-button unit is not affected by pressing operation, that is to say this
Push-button unit is in release conditions.
S204, the acquisition first voltage state are maintained at low level duration, and are given birth to according to the duration
At the pressing operation signal of corresponding types.
In step S204, the type of pressing operation signal can have single short-press signal, single long-press signal or more
Secondary long-press signal.
Specifically, in some embodiments, step S204 includes：
If S2041, the duration are more than the first preset time period and are less than the second preset time period, described in judgement
First output end and the signal of second output terminal whether constant amplitude reverse phase.
In this step, which can be 50ms.Second preset time period can be 80ms or
100ms is not intended to limit certainly.
If the signal constant amplitude reverse phase of S2042, first output end and second output terminal, single short-press letter is generated
Number.
If the signal of S2043, first output end and second output terminal not constant amplitude reverse phase, generate pressing operation without
Imitate signal.
In the step, the signal of first output end and second output terminal not constant amplitude reverse phase when, illustrate the first output
End and second output terminal receive external disturbance, to produce interference signal, need the secondary pressing operation being determined as nothing
Effect pressing, that is to say and generate pressing operation invalid signals.
In some embodiments, step S104 includes：
If S2044, duration are more than the second preset time period, the first output end and the letter of second output terminal are judged
Number whether constant amplitude reverse phase.
If the signal constant amplitude reverse phase of S2045, the first output end and second output terminal, generate long-press signal.
Wherein, if the first output end and the signal of second output terminal not constant amplitude reverse phase, generate pressing operation and believe in vain
Number.
Wherein, in step S2045, which can be single long-press signal, or continuous several times are long
By signal, particularly belong to any to preset.
In some embodiments, step S2045 can be：If the signal of first output end and second output terminal
Constant amplitude reverse phase then generates single long-press signal.
In some embodiments, step S2045 can be：If the signal of first output end and second output terminal
Constant amplitude reverse phase then generates multiple long-press signal.Wherein, when for multiple long-press signal, a single is generated at predetermined time intervals
Long-press signal generates a single long-press signal every 100ms, has then collectively generated four for example, the duration is 400ms
Secondary single long-press signal.
The utility model embodiment additionally provides a kind of push button signalling processing unit, and push button signalling processing unit is with computer
The form of program is stored in the signal processing unit.The push button signalling processing unit includes：
First judgment module, for after detecting that the signal of the first output end and second output terminal is overturn
In one preset time, when the signal of first output end and second output terminal is not overturn, first output is judged
End and second output terminal signal whether constant amplitude reverse phase；
First acquisition module obtains if for first output end and the signal constant amplitude reverse phase of second output terminal
First voltage state at first node；
Second judgment module, if for the first voltage state be low level, judge the key switch unit by
To pressing operation；
Generation module is maintained at low level duration for obtaining the first voltage state, and is held according to described
Continuous duration generates the pressing operation signal of corresponding types.
Wherein, in some embodiments, which includes：
First judging unit, if being more than the first preset time period for the duration and being less than the second preset time
Section, then judge first output end and second output terminal signal whether constant amplitude reverse phase；
First generation unit generates if for first output end and the signal constant amplitude reverse phase of second output terminal
Single short-press signal；
Second generation unit, if signal for first output end and second output terminal not constant amplitude reverse phase, gives birth to
At pressing operation invalid signals.
In some embodiments, generation module includes：
Second judgment unit judges first output if being more than the second preset time period for the duration
End and second output terminal signal whether constant amplitude reverse phase；
Third generation unit generates if for first output end and the signal constant amplitude reverse phase of second output terminal
Long-press signal；
4th generation unit, if signal for first output end and second output terminal not constant amplitude reverse phase, gives birth to
At pressing operation invalid signals.
In the description of this specification, reference term " embodiment ", " certain embodiments ", " schematically implementation
What the description of mode ", " example ", " specific example " or " some examples " etc. meant to describe in conjunction with the embodiment or example
Particular features, structures, materials, or characteristics are contained at least one embodiment or example of the utility model.In this explanation
In book, schematic expression of the above terms are not necessarily referring to identical embodiment or example.Moreover, the specific spy of description
Sign, structure, material or feature can be combined in any suitable manner in any one or more embodiments or example.
In conclusion although the utility model is disclosed above with preferred embodiment, above preferred embodiment is not used
To limit the utility model, those skilled in the art can make without departing from the spirit and scope of the utility model
It is various to change and retouch, therefore the scope of protection of the utility model is subject to the range that claim defines.
Claims (2)
1. a kind of push button signalling processing circuit, which is characterized in that including：
Key switch unit is connected when in pressing state, ends when in release conditions, the key switch list
One end ground connection of member；
Latch, with first input end, the first output end and second output terminal, the first input end and the button
The other end of switch unit is connected at first node；
Signal processing unit is connect with the first node, first output end and the second output terminal, institute respectively
Signal processing unit is stated for being given birth to according to the signal at first output end, the second output terminal and the first node
At key operation signal.
2. push button signalling processing circuit according to claim 1, which is characterized in that the key switch unit includes button
Switch and divider resistance, one end ground connection of the key switch, the other end of the key switch pass through the divider resistance
It is connect with the first input end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721424757.9U CN207706156U (en) | 2017-10-31 | 2017-10-31 | Push button signalling processing circuit for portable three-coordinate measuring machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721424757.9U CN207706156U (en) | 2017-10-31 | 2017-10-31 | Push button signalling processing circuit for portable three-coordinate measuring machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207706156U true CN207706156U (en) | 2018-08-07 |
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ID=63021721
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721424757.9U Active CN207706156U (en) | 2017-10-31 | 2017-10-31 | Push button signalling processing circuit for portable three-coordinate measuring machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107645293A (en) * | 2017-10-31 | 2018-01-30 | 广州充圆精密光电仪器有限公司 | Push button signalling processing method, device and circuit for portable three-coordinate measuring machine |
-
2017
- 2017-10-31 CN CN201721424757.9U patent/CN207706156U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107645293A (en) * | 2017-10-31 | 2018-01-30 | 广州充圆精密光电仪器有限公司 | Push button signalling processing method, device and circuit for portable three-coordinate measuring machine |
| CN107645293B (en) * | 2017-10-31 | 2024-03-12 | 广州充圆精密光电仪器有限公司 | Key signal processing method, device and circuit for portable three-coordinate measuring machine |
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