CN110967538B

CN110967538B - Knob acceleration method and control and adjustment method of oscilloscope and digital oscilloscope

Info

Publication number: CN110967538B
Application number: CN202010126666.7A
Authority: CN
Inventors: 刘仲胜; 郑文明; 周旭鑫
Original assignee: Shenzhen Siglent Technologies Co Ltd
Current assignee: Shenzhen Siglent Technologies Co Ltd
Priority date: 2020-02-28
Filing date: 2020-02-28
Publication date: 2020-06-09
Anticipated expiration: 2040-02-28
Also published as: CN110967538A

Abstract

A knob acceleration method, a control regulation method and a digital oscilloscope of the oscilloscope are provided, wherein the knob acceleration method comprises the following steps: acquiring a key value and a response value corresponding to a knob in the rotation change process, and accumulating the response value according to the comparison relationship between the response value acquired this time and a preset threshold value when the key value acquired this time is the same as the key value acquired last time to obtain an accumulated value; if the accumulated value is zero, carrying out numerical amplification on the response value obtained this time according to a preset first rule to obtain a first further result; if the accumulated value is not zero, carrying out numerical amplification on the accumulated value according to a preset second rule to obtain a second step result; and outputting the key value and the first step result or the second step result. The technical scheme is suitable for continuously rotating the knob to enable the corresponding oscilloscope control quantity to quickly reach the target value, so that the situation that the adjusting effect is not obvious in the conventional knob acceleration adjustment can be avoided.

Description

Knob acceleration method and control and adjustment method of oscilloscope and digital oscilloscope

Technical Field

The invention relates to the technical field of oscilloscopes, in particular to a knob acceleration method, a display adjustment method and a digital oscilloscope of the oscilloscope.

Background

Oscilloscopes are one of the measuring instruments and have a very wide range of applications, with the aid of which transients in the waveform can be visually observed. The control panel of the oscilloscope is often distributed with a plurality of knobs, and different adjusting functions such as time base, amplitude, scanning line, brightness, focusing adjustment and the like are realized by rotating the knobs. Although the number of the knob distribution on the oscilloscopes with different models is different, the functions which can be realized are basically the same as or different from each other.

The adjustment process of knob will directly influence customer's experience and feel, promotes to rotate the operation effect and can let the user have more comfortable experience. Many current oscilloscopes are uneven in the operation experience level of the knob, and problems of jamming, instantaneous movement, poor acceleration effect and the like are often encountered. For example, in the knob adjustment process of the oscilloscope, knob acceleration is realized by counting the knob response times within a time threshold, and the faster knob adjustment is, the more the response times are, so that the FPGA acquires a larger step, and then amplifies the acquired step; however, the steps obtained according to this method are always limited and cannot be increased with continued adjustment, so that the target value cannot be adjusted more quickly, so that the number of acceleration values is limited and the acceleration effect is not significant, often requiring a longer time to adjust to a larger desired value.

Disclosure of Invention

The invention mainly solves the technical problem of how to quickly and continuously adjust a knob and obtain continuously increased steps so as to quickly reach a desired value. In order to solve the technical problems, the application provides a knob acceleration method, a control and adjustment method and a digital oscilloscope of the oscilloscope.

According to a first aspect, there is provided in one embodiment a method for knob acceleration for an oscilloscope, comprising: acquiring a key value and a response value corresponding to a knob in a rotation change process, wherein the key value and the response value are respectively used for representing the rotation direction and the rotation travel of the knob in unit detection time; when the key value obtained this time is the same as the key value obtained last time, performing frequency accumulation on the response value according to the comparison relation between the response value obtained this time and a preset threshold value to obtain an accumulated value; if the accumulated value is zero, numerically amplifying the response value obtained this time according to a preset first rule to obtain a first further result, specifically comprising: inquiring a current response value in a preset first list, and taking an amplification value corresponding to the response value obtained this time as a first step result, wherein the first list comprises a plurality of response values and amplification values respectively corresponding to the response values which are set by using a preset first rule, and the numerical amplification factor corresponding to the two values and the magnitude of the response values are in a positive correlation; if the accumulated value is not zero, numerically amplifying the accumulated value according to a preset second rule to obtain a second step result, which specifically comprises: inquiring the current accumulated value in a preset second list, and taking an amplification value corresponding to the current accumulated value as a second step result; the second list comprises a plurality of accumulated values and corresponding amplification values which are set by a preset second rule, the numerical amplification factor between the two corresponding values and the size of the accumulated value are in a negative correlation relationship, and the amplification value corresponding to each accumulated value is larger than the amplification value corresponding to each response value in the first list; outputting the key value and the first step result or the second step result; the key value is also used for determining the increase or decrease of the oscilloscope control quantity corresponding to the knob, and the first step result and the second step result are used for matching with the key value and accelerating the adjustment of the oscilloscope control quantity corresponding to the knob.

When the key value obtained this time is the same as the key value obtained last time, performing frequency accumulation on the response value according to the comparison relationship between the response value obtained this time and the preset threshold value to obtain an accumulated value, including: comparing the key value obtained this time with the key value obtained last time, and judging the magnitude relation between the response value obtained this time and the preset threshold value when the key values obtained twice are determined to be the same; when the response value obtained this time is greater than or equal to the preset threshold value, a counter is used for carrying out accumulated counting once, otherwise, the counter is not subjected to accumulated counting; and obtaining an accumulated value according to the counting result of the counter.

Before obtaining the accumulated value according to the result of the accumulated counting performed by the counter, the method further includes: triggering a timer to start timing or triggering a timer to start timing when the counter performs one-time accumulated counting; the timer or the timer is used for being triggered again when the counter carries out the next accumulated timing; and when the timing time of the timer reaches or the timing time of the timer reaches the preset time, counting and clearing the counter.

And if the obtained key value is compared with the key value obtained last time and then the two key values are determined to be different, counting and resetting the counter.

According to a second aspect, there is provided in one embodiment a method of controlling adjustment of an oscilloscope, comprising: receiving a key value of a knob and a first step result or a second step result output according to the knob acceleration method in the first embodiment; acquiring a current value of the oscilloscope control quantity corresponding to the knob; determining the increase or decrease of the current value by using the key value, and increasing or decreasing the first step result or the second step result on the basis of the current value by using the first step result or the second step result and matching the key value to calculate an adjusting value; and adjusting the oscilloscope control quantity corresponding to the knob according to the adjusting value.

If the oscilloscope control quantity corresponding to the knob is the pixel coordinate of the cursor on the screen, adjusting the oscilloscope control quantity corresponding to the knob according to the adjusting value, wherein the oscilloscope control quantity comprises the following steps: and determining the moving direction of the cursor according to the key value, and adjusting the pixel coordinate of the cursor according to the moving direction of the cursor and the adjusting value so as to enable the cursor to move to the adjusted pixel coordinate.

According to a third aspect, there is provided in one embodiment a digital oscilloscope, comprising: one or more knobs; the detection circuit is connected with each knob and is used for detecting and reporting a corresponding key value and a corresponding response value of each knob in the rotation change process; the key value and the response value are respectively used for marking the rotation direction and the rotation travel of the knob in unit detection time; a processor, connected to the detection circuit, for outputting a key value and a first step result or a second step result of any one of the knobs according to the knob acceleration method in the first aspect, and adjusting an oscilloscope control quantity corresponding to any one of the knobs according to the control adjustment method in the second aspect; and the display is connected with the processor and used for displaying the oscilloscope control quantity corresponding to any one knob.

The detection circuit comprises a scanning module and a reporting module; the scanning module is connected with each knob and is used for detecting the rotation state of the knob in the rotation change process at a preset scanning frequency and counting the response times of the knob; the reporting module is connected with the scanning module and the processor, and is configured to determine a key value and a response value corresponding to each knob by using the response times of the knob, and report the key value and the response value to the processor.

According to a fourth aspect, an embodiment provides a computer-readable storage medium comprising a program executable by a processor to implement the knob acceleration method described in the first aspect above and/or to implement the control adjustment method described in the second aspect above.

The beneficial effect of this application is:

according to the knob acceleration method, the control and regulation method and the digital oscilloscope of the embodiment, the knob acceleration method comprises the following steps: acquiring a key value and a response value corresponding to a knob in the rotation change process, and accumulating the response value according to the comparison relationship between the response value acquired this time and a preset threshold value when the key value acquired this time is the same as the key value acquired last time to obtain an accumulated value; if the accumulated value is zero, carrying out numerical amplification on the response value obtained this time according to a preset first rule to obtain a first further result; if the accumulated value is not zero, carrying out numerical amplification on the accumulated value according to a preset second rule to obtain a second step result; and outputting the key value and the first step result or the second step result. On the first hand, the key value and the response value corresponding to the knob in the rotation change process are obtained, so that the rotation direction of the knob in unit detection time can be conveniently judged by using the key value, and the rotation travel of the knob in unit detection time is determined by using the response value; in the second aspect, when the key value obtained this time is the same as the key value obtained last time, the response value is subjected to frequency accumulation according to the comparison relationship between the response value obtained this time and the preset threshold value to obtain an accumulated value, so that the frequency accumulation of the response value can be performed in the same rotation direction of the knob, and the consistency of the acceleration direction of the knob is ensured; in the third aspect, when the accumulated value is zero, it is indicated that the user does not continuously accelerate to rotate the knob, and at this time, the response value obtained this time is numerically amplified according to a preset first rule to obtain a first step result, so that the first step result can reflect the acceleration adjustment state within unit detection time, and at this time, even if the knob is slowly rotated, the oscilloscope control quantity corresponding to the adjustment knob can still be accelerated; in the fourth aspect, the situation that the accumulated value is not zero indicates that the user is continuously accelerated and rotated, at the moment, the accumulated value is numerically amplified according to a preset second rule to obtain a second stepping result, so that the second stepping result can reflect the acceleration adjustment state in a plurality of continuous unit detection times, the numerical value is much larger than the first stepping result, and the oscilloscope control quantity corresponding to the knob can be conveniently and greatly adjusted in a short time; in the fifth aspect, compared with the first step result obtained under the first rule, the second step result obtained under the second rule is much larger, so that the method is more suitable for the situation of oscilloscope control quantity corresponding to the rapid adjusting knob, and the situation that the adjusting effect is not obvious in the conventional knob acceleration adjustment can be avoided; in a sixth aspect, the control and adjustment method of the oscilloscope enables the oscilloscope to have strong rotation sensing capability on the knob of the oscilloscope, a large stepping result can be obtained as long as the knob is detected to rotate continuously in an accelerated manner, and a user can conveniently and rapidly adjust the control quantity of the oscilloscope to reach a target value through the short rotation stroke of the knob in a short time; in a seventh aspect, the control and adjustment method is particularly effective for the process of adjusting the screen cursor by means of the knob, and the cursor can be quickly moved to the adjusted pixel position in the moving direction of the cursor, so that the adjustment time of a user is saved, and convenience in operation is brought to the user; in an eighth aspect, the digital oscilloscope provided by the application can perfectly realize the condition that one or more knobs execute the acceleration adjustment, so that a user can observe the application effect of the continuous acceleration adjustment at any time through the display, the control quantity of the oscilloscope is quickly adjusted to a target value, the user experience can be improved, and the use efficiency of the user is improved.

Drawings

FIG. 1 is a schematic diagram of a digital oscilloscope according to the present application;

FIG. 2 is a schematic diagram of a detection circuit and a processor in a digital oscilloscope;

FIG. 3 is a flow chart of a knob acceleration method of an oscilloscope according to the present application;

FIG. 4 is a flow chart of accumulating the response values to obtain an accumulated value;

fig. 5 is a flowchart of a method for controlling and adjusting an oscilloscope according to the present application.

Detailed Description

The present invention will be described in further detail with reference to the following detailed description and accompanying drawings. Wherein like elements in different embodiments are numbered with like associated elements. In the following description, numerous details are set forth in order to provide a better understanding of the present application. However, those skilled in the art will readily recognize that some of the features may be omitted or replaced with other elements, materials, methods in different instances. In some instances, certain operations related to the present application have not been shown or described in detail in order to avoid obscuring the core of the present application from excessive description, and it is not necessary for those skilled in the art to describe these operations in detail, so that they may be fully understood from the description in the specification and the general knowledge in the art.

Furthermore, the features, operations, or characteristics described in the specification may be combined in any suitable manner to form various embodiments. Also, the various steps or actions in the method descriptions may be transposed or transposed in order, as will be apparent to one of ordinary skill in the art. Thus, the various sequences in the specification and drawings are for the purpose of describing certain embodiments only and are not intended to imply a required sequence unless otherwise indicated where such sequence must be followed.

The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings).

Examples 1,

Referring to fig. 1, the present application provides a digital oscilloscope, where the digital oscilloscope 1 includes a control panel 11, a detection circuit 12, a processor 13 and a display 14, which are described below.

The control panel 11 has one or more knobs, each of which can be turned by a user to adjust a corresponding oscilloscope control quantity. Here, the number of the knobs on the control panel 11 is not specifically limited based on the actual needs of the user, and for convenience of description, two knobs illustrated in fig. 1 may be preferably provided, and the reference signs a and b are specifically visible. Further, the oscilloscope control amount here may be any of parameters such as a scan line, a cursor, a signal waveform, a channel, brightness, a focus position, and the like.

It should be noted that, for modern digital oscilloscopes, knobs are often arranged on a control panel, and the knobs are used for adjusting certain control quantities of the oscilloscopes. For example, a scanning speed knob is arranged to adjust the speed of the scanning line of the oscilloscope moving from left to right, a voltage selection knob is arranged to adjust the input voltage to enable the deflection amplitude of the scanning line in the Y-axis direction of the oscilloscope screen, an upper and lower adjusting knob and a left and right adjusting knob are arranged to adjust the positions of the scanning line in the upper, lower, left and right directions in the screen, a synchronization knob is arranged to stabilize the signal waveform displayed by the oscilloscope, a selection knob is arranged to serve as a selection key to switch a signal channel, and a brightness adjusting knob and a focus adjusting knob are arranged to adjust the brightness and the focus position of an image to enable the image to be fine. Of course, some knobs may perform corresponding adjustment functions in different modes, so that there is a multiplexing of functions, but the oscilloscope control amount corresponding to the knob is not a focus of the technical solution, so the oscilloscope control amount corresponding to the knob is not specifically limited herein.

It should be noted that the knob provided on the digital oscilloscope usually has a function of rotary coding, and the mechanical rotation angle can be converted into a digital signal for output by means of a photoelectric coding technology or a resistance value coding technology, and the digital signal includes information of the rotation direction and the rotation stroke of the knob, and the specific coding form of the digital signal may be the existing technology or may be not limited herein.

The detection circuit 12 is connected to each knob in the control panel 11, and is configured to detect and report a key value and a response value corresponding to each knob in a rotation change process. The key value and the response value are used for marking the rotation direction and the rotation travel of the knob in the unit detection time respectively.

In an embodiment, referring to fig. 2, the detection circuit 12 includes a scanning module 121 and a reporting module 122, which are respectively described as follows.

The scanning module 121 is connected to each knob, and is configured to detect a rotation state of the knob during a rotation change process at a preset scanning frequency, and count response times of the knob. For example, the scanning module 121 has signal scanning and detecting functions, and can continuously detect the rotation change state of the knob at a certain scanning frequency (e.g., 200kHz to 300 kHz), and detect the digital signal output by the knob in response to each time, where the higher the scanning frequency, the smaller the time interval of each detection is, the less the detection omission occurs; in addition, since a set of digital signals is outputted in response to each rotation of the knob by a physical quantity (e.g., a minimum photoelectric scale or a minimum resistance value), in order to count the rotation stroke of the knob, the scanning module 121 should further have a threshold time counting function for counting the response times of the knob within a unit detection time (e.g., a time value within 100 ms), i.e., the times of the knob outputted in response to the physical rotation.

The reporting module 122 is connected to the scanning module 121 and the processor 13, and configured to determine, by using the response times of each knob, a key value and a response value corresponding to the knob, and report the key value and the response value to the processor 13.

It should be noted that the reporting module 122 may be a processing device such as an FPGA, and acquires the response times of the knob in the unit detection time from the scanning module 121 to determine a response value, where the response value may represent a rotation travel of the knob, for example, if the current response value is 10 and the total response times of the knob rotating for one week is 50, it is equivalent to that the knob rotates for five minutes in the unit detection time, and it is also equivalent to that the knob rotates for 72 degrees. In addition, the reporting module 122 obtains the response times of the knob within the unit detection time and the rotation direction information at each response output from the scanning module 121 to determine the key value, and may use 1 or 0 to represent the rotation direction, for example, 1 represents clockwise rotation, and 0 represents counterclockwise rotation; since the unit detection time is very small and much shorter than the conversion rotation time of the user, the rotation direction of the knob can be considered to be changed at most once or even not changed within the unit detection time, and then the occurrence number of 1 or 0 within the unit detection time can be counted, and the key value is determined by the value (1 or 0) corresponding to the maximum occurrence number. In addition, the reporting module 122 also has a function of reporting the key value and the response value at regular time, and can actively report the key value and the response value obtained after the end of each unit detection time to the processor 13.

For example, for the knob a on the control panel 11, the scanning module 121 in the detection circuit 12 counts the number of responses of the knob a in the unit detection time and the rotation direction of the knob a at each time of response output, and the reporting module 122 may determine the key value and the response value corresponding to the knob a after acquiring the number of responses of the knob a in the unit detection time and the rotation direction of the knob a at each time of response output, and report the key value and the response value corresponding to the knob a determined each time to the processor 13.

The processor 13 is connected to the detection circuit 12, and is configured to receive the key value and the response value reported by the detection circuit 12 each time, process the key value and the response value received each time according to a preset knob acceleration method, obtain a first step result or a second step result by the processing, and adjust an oscilloscope control quantity corresponding to any one knob according to a preset control adjustment method.

Referring to fig. 1, a display 14 is connected to the processor 13 and is used for displaying the oscilloscope control quantity corresponding to any one of the knobs. It can be understood that the oscilloscope control variable may be any one of parameters such as a scan line, a cursor, a signal waveform, a channel, brightness, a focus position, and the like, and may be viewed by a user when displayed on the display 14, and the user may perform rotation adjustment on any one of the knobs on the control panel 11, and may simultaneously observe a change effect of the corresponding oscilloscope control variable on the display 14 in real time, so as to meet an application requirement that the knob adjustment and the effect viewing are performed simultaneously.

In the present embodiment, the knob acceleration method and the control adjustment method executed by the processor 13 will be specifically described in the following first embodiment and second embodiment, respectively.

In a specific embodiment, in order to facilitate the processor 13 to implement the knob acceleration method disclosed in the first embodiment and the control adjustment method disclosed in the second embodiment, the processor 13 may be functionally divided, so that the processor 13 includes the first processing module 131 and the second processing module 132, and the specific structure may be as shown in fig. 2. The first processing module 131 is connected to the reporting module 121 in the detection circuit 12, and is configured to obtain a key value and a response value corresponding to a knob in a rotation change process, process the key value and the response value to obtain a first step result or a second step result, and output the key value and the first step result or the second step result; the second processing module 132 is connected to the first processing module 131 and the display 14, and is configured to receive the key value output by the first processing module 131 and the first step result or the second step result, process the key value and the first step result or the second step result to obtain an adjustment value, adjust the oscilloscope control quantity corresponding to the knob according to the adjustment value, and control the display to display the adjusted oscilloscope control quantity.

Those skilled in the art can understand that the digital oscilloscope provided in the embodiment can perfectly implement the situation that one or more knobs execute the acceleration adjustment, so that a user can observe the application effect of the continuous acceleration adjustment at any time through a display, and the control quantity of the oscilloscope is quickly adjusted to a target value, thereby improving the user experience and improving the use efficiency of the user.

Example II,

Referring to fig. 3, on the basis of the digital oscilloscope disclosed in the first embodiment, the present application provides a knob acceleration method for an oscilloscope, which includes steps S110 to S160, which are described below.

Since the knob acceleration method is implemented when the relevant program is executed on the first processing module 131 in the processor 13, specific reference may be made to fig. 1 regarding the connection relationship of the processor 13 with other circuits, and specific reference may be made to fig. 2 regarding the structure of the processor 13.

Step S110, obtaining a key value and a response value corresponding to a knob in the rotation change process, wherein the key value and the response value are respectively used for representing the rotation direction and the rotation travel of the knob in unit detection time.

In a specific embodiment, referring to fig. 1 and fig. 2, the knob mentioned in this step may be any one knob (for example, a knob a) in the control panel 11 of the digital oscilloscope 1, and the first processing module 131 in the processor 13 acquires the key value and the response value reported by the reporting module 122 in the detection circuit 12 for the knob. If d and n are used to represent the key value and the response value respectively, the key value d represents the rotation direction of the knob determined in the unit detection time (such as 100 ms), for example, d =1 represents clockwise rotation, d =0 represents counterclockwise rotation; the response value n characterizes the rotation travel of the knob determined within a unit of detection time (for example 100 ms), for example n ∈ [0,20] and n is a positive integer.

And step S120, when the key value obtained this time is the same as the key value obtained last time, accumulating the response value according to the comparison relation between the response value obtained this time and the preset threshold value to obtain an accumulated value.

It should be noted that, referring to fig. 2, the first processing module 131 in the processor 13 acquires a set of key values and response values for a certain knob every unit detection time, and if the key value acquired this time is the same as the key value acquired last time, it indicates that the rotation direction of the knob is the same, at this time, the size of the response value acquired this time relative to the preset threshold may be determined, and the times of accumulating the response values when the size is greater than or equal to the preset threshold are performed. The preset threshold can be represented by x and is a user-defined value as long as the preset threshold is less than the maximum response time within a unit detection time, and if n is greater than n_max=20, x =10 is set.

It should be noted that the magnitude of the response value n is related to the speed of the user turning the knob, and the preset threshold value x is actually a critical value representing how fast the knob is turned. When the knob is rotated at a slow speed, the response value n is smaller than a preset threshold value; when the knob is rotated at a high speed, the response value n is greater than a preset threshold value.

For example, defining the response value as n, the preset threshold as x, and the accumulated value as cnt, and in case that n > = x, performing an operation of self-adding 1 on the accumulated value cnt, that is, assigning cnt to cnt +1 again. If n > = x occurs continuously for a plurality of times, the cumulative value cnt is subjected to cumulative assignment for the same number of times. It will be appreciated that, referring to fig. 2, the first processing module 131 in the processor 13 may initially set the running total cnt =0 before each turning of the adjustment knob, i.e., running the number of times the response value is counted on a 0-time basis.

In step S130, it is determined whether the accumulated value is zero, if yes, the process proceeds to step S140, otherwise, the process proceeds to step S150.

In step S140, under the condition that the accumulated value is zero, the response value obtained this time is numerically amplified according to a preset first rule, so as to obtain a first step result. And proceeds to step S160 after step S140.

In one embodiment, the process of obtaining the first further result may be described as: inquiring a current response value in a preset first list, and taking an amplification value corresponding to the response value acquired this time as a first step result; the first list can refer to table 1, and the first list includes a plurality of response values and corresponding amplification values respectively set by a preset first rule, and the numerical amplification factor between the two values and the magnitude of the response value are in a positive correlation.

TABLE 1 first list

Response value n	Amplified value of n'
		1	1
2	1
		3	5
4	20
		5	70
6	100
		7	100
8	150
		9	150
10	200

As can be seen from the example contents in the first list, the correspondence between the response value n and the amplification value n ' is defined as a preset first rule, and the amplification value n ' is in a positive correlation with the response value n compared to the numerical amplification factor of the response value n, that is, the larger the response value n, the larger the numerical amplification factor n '/n. When the response value n =5, the corresponding amplification value n' = 70; if the first further result is denoted by s1, then the first further result at this time is s1= 70.

It should be noted that, if the response value acquired this time exceeds the maximum response value (for example, 10) in the first list when the accumulated value is zero, the response value acquired this time may be updated with the maximum response value in the first list, that is, the response value acquired this time is reset to the maximum response value in the first list. Referring to fig. 2, this allows the first processing module 131 in the processor 13 to smoothly perform step S140.

And S150, under the condition that the accumulated value is not zero, numerically amplifying the accumulated value according to a preset second rule to obtain a second step result. After step S150, the process proceeds to step S160.

In one embodiment, the process of obtaining the second step result may be described as: inquiring the current accumulated value in a preset second list, and taking an amplification value corresponding to the current accumulated value as a second step result; the second list may refer to table 2, where the second list includes a plurality of accumulated values and corresponding amplification values respectively set by a preset second rule, the numerical amplification factor between the two values and the magnitude of the accumulated value are in a negative correlation, and the amplification value corresponding to each accumulated value is greater than the amplification value corresponding to each response value in the first list.

TABLE 2 second List

Cumulative value cnt	Amplified value cnt'
		1	300
2	300
		3	400
4	400
		5	500
6	500
		7	600
8	600
		9	700
10	200+((cnt+1)/2)*100

As can be seen from the example contents in the second list, the correspondence between the accumulated value cnt and the amplification value cnt ' is defined as a preset second rule, and the amplification value cnt ' is in a negative correlation with the accumulated value cnt with respect to the numerical amplification factor of the accumulated value cnt, that is, the larger the accumulated value cnt, the smaller the numerical amplification factor cnt '/cnt. When the response value cnt =5, the corresponding amplification value cnt' = 500; if the second step result is represented by s2, then the second step result at this time is s2= 500. Furthermore, the smallest enlargement value cnt' =300 in the second list is also larger than the respective enlargement value n in the first list, indicating that the knob acceleration effect with the second step result is better than with the first step result.

It should be noted that, in the knob acceleration scheme of the conventional oscilloscope, the first rule indicated in the first list is often adopted to perform numerical amplification, so that the obtained amplification value is limited, and the effect of continuous acceleration adjustment of the knob cannot be achieved. However, after the numerical value is amplified by using the second rule indicated in the second list, the limitation of the existing knob acceleration scheme can be overcome, as long as the user continuously adjusts the knob in the same rotation direction at a higher speed, the knob can obtain a continuous acceleration adjustment effect, and the longer the continuous adjustment time is, the larger the obtained amplification value is, and the more obvious the acceleration adjustment effect is.

Step S160, the key value and the first step result or the second step result are output. In practical application, the output key value is mainly used for determining the increase or decrease of the oscilloscope control quantity corresponding to the knob, and the output first step result and the output second step result are both used for matching with the key value and accelerating the oscilloscope control quantity corresponding to the adjusting knob.

For example, referring to fig. 2, the first processing module 131 in the processor 13 acquires that the key value d =1 and the response value n =5 reported by the detection circuit 12 about the knob a, and since the response value is smaller than the preset threshold x =10, the counting of the cumulative value cnt is no longer considered. Then, the first processing module 131 queries the first list to obtain an amplification value n' =70 corresponding to the response value n, so as to obtain a first further result s1 of 70, where the first processing module 131 outputs a key value d =1, and the first further result s1= 70.

For example, referring to fig. 2, the first processing module 131 in the processor 13 acquires that the key value d =1 and the response value n =12 reported by the detection circuit 12 about the knob a, and since the response value is greater than the preset threshold x =10, the accumulated value cnt will be counted once based on the current count value; if the current count value is equal to 4, cnt =5 will result. Then, the first processing module 131 queries the second list to obtain the amplification value cnt' =500 corresponding to the accumulated value cnt =5, so as to obtain a second step result s2 as 500, where the first processing module 131 outputs the key value d =1 and the second step result s2= 500.

In the present embodiment, referring to fig. 4, the above step S120 may include steps S121 to S129, which are respectively described as follows.

Step S121, referring to fig. 2, the first processing module 131 in the processor 13 obtains the key value obtained this time and the key value obtained last time, and compares the key values obtained two times before and after.

It should be noted that, when the first processing module 131 in the processor 13 first acquires the key value, the key value acquired last time may not exist, and at this time, it may be default that the key value acquired last time is different from the key value acquired this time, so that the first processing module 131 conveniently enters step S129 after executing step S122.

Step S122, referring to fig. 2, the first processing module 131 in the processor 13 determines whether the key value obtained this time is the same as the key value obtained last time, if so, step S123 is performed, otherwise, step S129 is performed.

In step S123, referring to fig. 2, the first processing module 131 in the processor 13 determines a size relationship between the response value obtained this time and the preset threshold value when determining that the key values of the two times are the same.

In step S124, referring to fig. 2, the first processing module 131 in the processor 13 determines whether the response value obtained this time is greater than or equal to a preset threshold, if so, the process goes to step S125, otherwise, the process goes to step S126.

In step S125, referring to fig. 2, the first processing module 131 in the processor 13 performs an accumulative count with a counter when the response value obtained this time is greater than or equal to the preset threshold, and then obtains an accumulative value according to the counting result of the counter. After step S125, the process proceeds to step S127.

It should be noted that the counter here may be a digital counter integrated inside the processor 13, or may be an externally connected physical electronic counting element, and is not limited in particular. Further, the purpose of setting the counter is to accurately perform the counting process of the accumulated value cnt.

In step S126, referring to fig. 2, the first processing module 131 in the processor 13 does not count the counter accumulatively, i.e. keeps the accumulated value of the counter unchanged. After step S126, the process proceeds to step S130.

In step S127, referring to fig. 2, the first processing module 131 in the processor 13 triggers a timer to start timing or triggers a timer to start timing when the counter performs one cumulative count. The timer or timer is used to be triggered again when the counter performs the next cumulative count.

It should be noted that the timer (timer) may be a digital timer (digital timer) integrated inside the processor 13, or may be an externally connected physical electronic timing (timing) element, which is not limited herein. In addition, whether the timer is used or not, the purpose is to count the elapsed time, so that the timer or timer can be freely selected for use in practical applications, and is not limited herein.

In step S128, referring to fig. 2, when the timing time of the timer reaches or the counted time of the timer reaches the preset time, the first processing module 131 in the processor 13 performs count clearing on the counter, that is, resets the accumulated value cnt to 0. After step S128, the process proceeds to step S130.

It should be noted that the timing time of the timer or the preset time of the timer may be a value customized by a user, and the timing time (or the preset time) is preferably set to 300 ms. Further, the occurrence of step S128 may be a case where the user stops or slows down while turning the knob, so that the stop time period or the speed slowing down time period exceeds the timing time (or the preset time), and it is assumed that the knob is not continuously performing the acceleration adjustment, and the initial state needs to be restored to accumulate the response value again.

In step S129, referring to fig. 2, when it is determined that the key value obtained this time is different from the key value obtained last time, and then the first processing module 131 in the processor 13 determines that the two key values are not the same, the counter is counted and cleared, that is, the cumulative value cnt is reset to 0. After step S129, the process proceeds to step S130.

It should be noted that the case of step S129 may be that the user rotates the knob in the opposite direction, and it is determined that the knob is not performing the acceleration adjustment in the same direction, and the initial state needs to be restored to accumulate the response value again.

For the convenience of understanding the above step S120, the process of acquiring and processing the key value and the response value will be specifically described with reference to the first processing module 131 in the processor 13 illustrated in fig. 2.

The first processing module 131 in the processor 13 acquires the key value d =1 for the first time, and the response value n =12, and since it is determined that the response value n =12 is greater than the preset threshold value x =10, the counter is used to perform cumulative counting once and obtain cnt =1 on the basis of the cumulative value cnt = 0; at this time, the first processing module 131 triggers a timer start timing (e.g., a countdown with a timing time of 300 ms). The first processing module 131 in the processor 13 obtains the key value d =1 for the second time, and the response value n =10, since it is determined that the response value n =10 is equal to the preset threshold value x =10, the counter is used to perform cumulative counting again, and cnt =2 is obtained on the basis of the cumulative value cnt = 1; at this time, the first processing module 131 triggers the timer to start timing again, i.e., starts counting down again for 300 ms. The first processing module 131 in the processor 13 acquires the key value d =1 for the third time, and the response value n =8, and as it is determined that the response value n =8 is smaller than the preset threshold value x =10, the counter is not counted accumulatively, and the accumulated value cnt =2 is maintained; at which time the timer continues to count down (e.g., the time interval for the processor to obtain the response value is 100 ms). The first processing module 131 in the processor 13 acquires the key value d =1 for the fourth time, and the response value n =8, and since it is determined that the response value n =8 is smaller than the preset threshold x =10, the counter is not counted accumulatively, and the accumulated value cnt =2 is maintained; at this point, the timer still continues to count down (e.g., the time interval for the processor to obtain the response value is 100 ms). The first processing module 131 in the processor 13 acquires the key value d =1 for the fifth time, the response value n =8, since the response value n =8 is judged to be smaller than the preset threshold value x =10, the counter is not counted accumulatively, and since the countdown of the timer is finished, the first processing module 131 restores the accumulated value cnt of the counter to 0. The first processing module 131 in the processor 13 acquires the key value d =0 for the sixth time, and determines that the key values of the previous and subsequent times are different from each other in response to the value n =8, so that the first processing module 131 continuously sets the accumulated value cnt of the counter to 0. The first processing module 131 in the processor 13 acquires the key value d =0 for the seventh time, and the response value n =12, and since it is determined that the response value n =12 is greater than the preset threshold x =10, the counter is used to perform one cumulative count, and cnt =1 is obtained on the basis of the cumulative value cnt = 0; at this time, the first processing module 131 triggers a timer to start timing. The other cases are analogized in turn.

Those skilled in the art will appreciate that the following technical advantages may be achieved when using the knob acceleration method disclosed in the present embodiment: (1) the key value and the response value corresponding to the knob in the rotation change process are obtained, so that the rotation direction of the knob in unit detection time can be conveniently judged by using the key value, and the rotation travel of the knob in unit detection time is determined by using the response value; (2) when the key value obtained this time is the same as the key value obtained last time, the response value is subjected to frequency accumulation according to the comparison relation between the response value obtained this time and the preset threshold value to obtain an accumulated value, so that the frequency accumulation of the response value can be performed in the same rotation direction of the knob, and the consistency of the knob in the acceleration direction is ensured; (3) when the accumulated value is zero, the user does not continuously accelerate to rotate the knob, and at the moment, the response value obtained this time is numerically amplified according to a preset first rule to obtain a first step result, so that the first step result can reflect the acceleration regulation state within unit detection time, and at the moment, even if the knob is slowly rotated, the oscilloscope control quantity corresponding to the knob can still be accelerated; (4) the user is explained to rotate in an accelerated manner continuously under the condition that the accumulated value is not zero, at the moment, the accumulated value is numerically amplified according to a preset second rule, and a second step result is obtained, so that the second step result can reflect the accelerated adjustment state in a plurality of continuous unit detection time, the numerical value is much larger than the first step result, the oscilloscope control quantity (5) corresponding to the knob can be conveniently and greatly adjusted in a short time, compared with the first step result obtained under the first rule, the second step result obtained under the second rule is much larger, the method is more suitable for the situation of rapidly adjusting the oscilloscope control quantity corresponding to the knob, and the situation that the adjustment effect is not obvious in the conventional knob accelerated adjustment can be avoided.

Example III,

Referring to fig. 5, the present application provides a method for controlling and adjusting an oscilloscope based on the knob acceleration method of the oscilloscope disclosed in the second embodiment, which includes steps S210-S240, which are described below.

Since the adjustment control method is implemented when the relevant program is executed on the second processing module 132 in the processor 13, specific reference may be made to fig. 1 regarding the connection relationship of the processor 13 with other circuits, and specific reference may be made to fig. 2 regarding the structure of the processor 13.

Step S210 receives a key value of a knob and a first step result or a second step result, which are output according to the knob acceleration method disclosed in the second embodiment.

It should be noted that, referring to fig. 1 and fig. 2, for the digital oscilloscope 1 shown, if the first processing module 131 in the processor 13 outputs the key value of any one of the knobs and the first step result or the second step result, the second processing module 132 in the processor 13 receives the key value output by the first processing module 131 and the first step result or the second step result. Of course, when understanding the technical solution of the present application, the skilled person may also omit the functional division of the first processing module 131 and the second processing module 132, and consider that both the knob acceleration method and the control adjustment method are implemented by the same processing component.

And step S220, acquiring the current value of the oscilloscope control quantity corresponding to the knob.

In this embodiment, referring to fig. 1 and 2, the oscilloscope control quantity corresponding to the knob may be any one of parameters such as a scan line, a cursor, a signal waveform, a channel, brightness, a focus position, and the like. For the parameter of the cursor, the second processing module 132 in the processor 13 obtains the current pixel coordinate of the cursor, and adjusts the moving position of the cursor based on the current pixel coordinate.

And step S230, determining the increase or decrease of the current value by using the key value, and increasing or decreasing the first step result or the second step result on the basis of the current value by using the first step result or the second step result and matching the key value to calculate the adjustment value.

And step S240, adjusting the oscilloscope control quantity corresponding to the knob according to the adjusting value.

In a specific embodiment, referring to fig. 1 and fig. 2, if the oscilloscope control quantity corresponding to the knob is a pixel coordinate of a cursor on the screen, the second processing module 132 in the processor 13 may determine a moving direction of the cursor according to the key value, and adjust the pixel coordinate of the cursor according to the moving direction of the cursor and the adjustment value, so that the cursor is moved to the adjusted pixel coordinate.

For example, referring to fig. 2, the key value b =1 received by the second processing module 132 in the processor 13, the first further result s1=70, and the pixel coordinate of the cursor acquired by the second processing module 132 is (1, 1). When the key value b =1 indicates that the cursor moves upward, it is determined that the ordinate in the pixel coordinate is increased by 70, that is, the adjustment value 71 is obtained, so that the coordinate position (1, 71) to which the cursor will reach can be obtained, at this time, the second processing module 132 only needs to adjust the display position of the cursor to the coordinate position (1, 71), so that the slow movement display effect of the cursor corresponding to the knob on the display 14 is realized when the knob is rotated and the adjustment is not accelerated.

For example, referring to fig. 2, the key value b =0 received by the second processing module 132 in the processor 13, the second step result s2=500, and the pixel coordinate of the cursor acquired by the second processing module 132 is (800). When the key value b =0 indicates that the cursor moves downward, it is determined that the ordinate in the pixel coordinate is reduced by 500, that is, the adjustment value 300 is obtained, so that the coordinate position (800,300) to which the cursor will reach can be obtained, at this time, the second processing module 132 only needs to adjust the display position of the cursor to the coordinate position (800,300), so that the effect of quickly moving the cursor on the display 14 corresponding to the knob when the knob is rotated and the adjustment is accelerated is achieved. The process of adjusting the other oscilloscope control variables by using the knob can refer to the adjustment process of the cursor, and is not described in detail herein.

Those skilled in the art can understand that the control and adjustment method disclosed in this embodiment enables the oscilloscope to have a strong rotation sensing capability for its own knob, and a large stepping result can be obtained as long as the knob is detected to rotate continuously in an accelerated manner, so that a user can conveniently and quickly adjust the control quantity of the oscilloscope to a target value through a short rotation stroke of the knob in a short time. In addition, the control and adjustment method is particularly effective for the process of adjusting the screen cursor by means of the knob, the cursor can be quickly moved to the adjusted pixel position in the moving direction of the cursor, the adjustment time of a user is saved, and convenience in operation is brought to the user.

Those skilled in the art will appreciate that all or part of the functions of the various methods in the above embodiments may be implemented by hardware, or may be implemented by computer programs. When all or part of the functions of the above embodiments are implemented by a computer program, the program may be stored in a computer-readable storage medium, and the storage medium may include: a read only memory, a random access memory, a magnetic disk, an optical disk, a hard disk, etc., and the program is executed by a computer to realize the above functions. For example, the program may be stored in a memory of the device, and when the program in the memory is executed by the processor, all or part of the functions described above may be implemented. In addition, when all or part of the functions in the above embodiments are implemented by a computer program, the program may be stored in a storage medium such as a server, another computer, a magnetic disk, an optical disk, a flash disk, or a removable hard disk, and may be downloaded or copied to a memory of a local device, or may be version-updated in a system of the local device, and when the program in the memory is executed by a processor, all or part of the functions in the above embodiments may be implemented.

The present invention has been described in terms of specific examples, which are provided to aid understanding of the invention and are not intended to be limiting. For a person skilled in the art to which the invention pertains, several simple deductions, modifications or substitutions may be made according to the idea of the invention.

Claims

1. A method for accelerating a knob of an oscilloscope, comprising:

acquiring a key value and a response value corresponding to a knob in a rotation change process, wherein the key value and the response value are respectively used for representing the rotation direction and the rotation travel of the knob in unit detection time;

when the key value obtained this time is the same as the key value obtained last time, performing frequency accumulation on the response value according to the comparison relation between the response value obtained this time and a preset threshold value to obtain an accumulated value; the method specifically comprises the following steps: comparing the key value obtained this time with the key value obtained last time, judging the magnitude relation between the response value obtained this time and the preset threshold value when determining that the key values obtained twice are the same, performing one-time accumulative counting by using a counter when the response value obtained this time is greater than or equal to the preset threshold value, otherwise not performing the accumulative counting on the counter, and obtaining the accumulative value according to the counting result of the counter;

if the accumulated value is zero, carrying out numerical amplification on the response value obtained this time according to a preset first rule to obtain a first further result; the method specifically comprises the following steps: inquiring a current response value in a preset first list, and taking an amplification value corresponding to the response value obtained this time as a first step result, wherein the first list comprises a plurality of response values and amplification values respectively corresponding to the response values which are set by using a preset first rule, and the numerical amplification factor corresponding to the two values and the magnitude of the response values are in a positive correlation;

if the accumulated value is not zero, numerically amplifying the accumulated value according to a preset second rule to obtain a second step result; the method specifically comprises the following steps: inquiring a current accumulated value in a preset second list, and taking an amplification value corresponding to the current accumulated value as a second step result, wherein the second list comprises a plurality of accumulated values and amplification values respectively corresponding to the accumulated values, which are set by a preset second rule, the numerical amplification factor between the two corresponding values and the magnitude of the accumulated value are in a negative correlation relationship, and the amplification value corresponding to each accumulated value is greater than the amplification value corresponding to each response value in the first list;

outputting the key value and the first step result or the second step result; the key value is also used for determining the increase or decrease of the oscilloscope control quantity corresponding to the knob, and the first step result and the second step result are used for matching with the key value and accelerating the adjustment of the oscilloscope control quantity corresponding to the knob.

2. The knob acceleration method according to claim 1, wherein before obtaining the accumulated value based on the result of the accumulated count performed by the counter, further comprising:

triggering a timer to start timing or triggering a timer to start timing when the counter performs one-time accumulated counting; the timer or the timer is used for being triggered again when the counter carries out the next accumulated timing;

and when the timing time of the timer reaches or the timing time of the timer reaches the preset time, counting and clearing the counter.

3. The knob acceleration method according to claim 1, characterized in that the counter is counted and cleared if it is determined that the key values obtained twice after comparing the key value obtained this time with the key value obtained last time are different.

4. A method for controlling and adjusting an oscilloscope is characterized by comprising the following steps:

receiving a key value of a knob and a first step result or a second step result output according to the knob acceleration method of any one of claims 1 to 3;

acquiring a current value of the oscilloscope control quantity corresponding to the knob;

determining the increase or decrease of the current value by using the key value, and increasing or decreasing the first step result or the second step result on the basis of the current value by using the first step result or the second step result and matching the key value to calculate an adjusting value;

and adjusting the oscilloscope control quantity corresponding to the knob according to the adjusting value.

5. The method according to claim 4, wherein if the oscilloscope control variable corresponding to the knob is the pixel coordinate of a cursor on a screen, adjusting the oscilloscope control variable corresponding to the knob according to the adjustment value comprises:

and determining the moving direction of the cursor according to the key value, and adjusting the pixel coordinate of the cursor according to the moving direction of the cursor and the adjusting value so as to enable the cursor to move to the adjusted pixel coordinate.

6. A digital oscilloscope, comprising:

one or more knobs;

the detection circuit is connected with each knob and is used for detecting and reporting a corresponding key value and a corresponding response value of each knob in the rotation change process; the key value and the response value are respectively used for marking the rotation direction and the rotation travel of the knob in unit detection time;

a processor, connected to the detection circuit, for outputting the key value of any one of the knobs and the first or second step result according to the knob acceleration method of any one of claims 1 to 3, and adjusting the oscilloscope control quantity corresponding to any one of the knobs according to the control adjustment method of claim 4 or 5;

and the display is connected with the processor and used for displaying the oscilloscope control quantity corresponding to any one knob.

7. The digital oscilloscope of claim 6, wherein the detection circuit comprises a scanning module and a reporting module;

the scanning module is connected with each knob and is used for detecting the rotation state of the knob in the rotation change process at a preset scanning frequency and counting the response times of the knob;

the reporting module is connected with the scanning module and the processor, and is configured to determine a key value and a response value corresponding to each knob by using the response times of the knob, and report the key value and the response value to the processor.

8. A computer-readable storage medium, characterized by comprising a program executable by a processor to implement the knob acceleration method as claimed in any one of claims 1-3 and/or to implement the control adjustment method as claimed in claim 4 or 5.