JPH0287074A - Waveform observation device with automatic waveform scrolling function - Google Patents

Abstract

PURPOSE:To enable execution of both ordinary waveform scrolling only of one time and automatic waveform scrolling, by providing a rotary switch. CONSTITUTION:A rotary switch 20 rotates in the right or left direction and generates a required waveform scrolling input signal. A switch 22 generates setting signals and alteration signals thereof relating to sampling speeds, the total number of the data thereon and various set items being necessary for observing waveforms in an input range. An arithmetic device 24 is provided with CPU 30, receiving these signals, preparing input data, turning them into waveforms and displaying them as scrolls on a screen. When the switch 20 is made to rotate in the right or left direction and the amount and speed thereof are selected, the required waveform scrolling input signal corresponding thereto is generated and a waveform in a waveform scrolling state is observed in a display device 26. When the switch 20 is in a state of rotating continuously in a prescribed number of rotations or more, in the same direction and at a high speed, for instance, an input signal from the switch 20 is determined to be of automatic waveform scrolling, while it is determined to be of ordinary waveform scrolling only of one time corresponding to the other state when the switch is in this state.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a waveform observation device that automatically scrolls (translates the screen in parallel) and continuously displays waveforms based on voltage, current, and other numbered input data. .

2. Description of the Related Art Conventionally, waveform observation devices such as recorders and waveform analyzers use recording devices such as dot printers to record voltage, current, and other sampled input data in the form of waveforms on recording paper. Furthermore, a display device such as a CRT is provided, and waveforms are scrolled and displayed on the screen from data stored in a memory based on the same sampling data, and the waveforms are observed. The means for starting such waveform scrolling is a rotary switch, and when it is rotated to the right or left as much as necessary, a signal is generated, and a number of waveform scrolls corresponding to the amount of rotation are performed.

For example, as shown in Figure 7, if you press your fingertip into the recess of the rotary knob 10 and turn the knob counterclockwise by the amount of rotation equivalent to one revolution of waveform scrolling, the screen will appear as shown in Figure (A). If you scroll the waveform to the left by one rotation above, and then continue to turn the knob by the amount of rotation equivalent to scrolling the waveform by a little more than two rotations, the waveform will continue to the left by that amount as shown in the figure (b). Scroll. In addition, when the rotary knob 10 is rotated once, the waveform changes from 5 to 6 on the screen.
Scroll about cm.

Problems to be Solved by the Invention However, in a waveform observation device having such a waveform scrolling function, when a large amount of data is stored in the memory, it is difficult to scroll all the waveforms from the beginning to the end by inputting the rotary switch. , the switch must continue to be rotated for a long time, for example, about 17 minutes. For this reason, the labor burden required for operation is too great.
It becomes painful for the observer. Therefore, as shown in FIG. 8, dedicated automatic waveform scroll transition switches, such as an open/close type switch 12 for rightward scrolling and an open/close type switch 14 for leftward scrolling, are installed near the rotary switch 10. It may be possible to automatically scroll the waveform to the right or left by simply turning on one of the open/close switches without rotating the waveform. However, this naturally requires two automatic waveform scroll transition switches.

The present invention has been made by focusing on these conventional problems, and provides a waveform observation device having an automatic waveform scrolling function that allows normal one-time waveform scrolling and automatic waveform scrolling to be performed with just one rotary switch. The purpose is to provide equipment.

Means for Solving the Problems Means for achieving the above object will be explained below with reference to FIG. 1 which clearly shows the present invention.

This waveform observation device having an automatic waveform scroll function includes a rotary switch 20 at the front stage that generates a required waveform scroll input signal, and a switch input detection means 42 for detecting the presence or absence of switch input at the middle stage, and an input switch 20. Input switch determining means 44 for determining the type of input switch 22
and a waveform scrolling state determining means 46 for determining whether the waveform scrolling state is one-time waveform scrolling or automatic waveform scrolling in response to a human input signal from the rotary switch 20, and the determined waveform scrolling state. The waveform scrolling execution means 4B executes the waveform scroll execution means 4B, and a display device 26 for scrolling and displaying the waveform is provided at the rear stage.

Then, the waveform scroll state determining means 4 in the middle stage above
6, it is preferable that automatic waveform scrolling be determined when a manual signal is received from the rotary switch 20 indicating that the switch 20 is continuously rotating in the same direction and at high speed for a predetermined number of times or more.

Effect With the above configuration, by operating the rotary switch 20 in the previous stage, rotating it to the right or left, and selecting the amount of rotation, rotation speed, etc., the required waveform scroll corresponding to the operating state will be scrolled. By generating the human power signal, the waveform of the scrolling state obtained on the display device 26 at the subsequent stage can be observed. For this reason, in the middle stage, first, the switch human power detection means 42 detects whether there is an input signal from the operation of the rotor switch 20 or other switches 22, or the presence or absence of a switch input, and then the input switch discrimination means 44
determines the type of the switch 20 or 22 that generated the input signal, and then the waveform scroll state determining means 46 changes the state of the waveform scroll to normal one-time waveform scroll according to the input signal from the rotary switch 20. Or,
Alternatively, after determining whether to perform automatic waveform scrolling, the waveform scroll signal means 48 executes the determined waveform scrolling state.

The waveform scroll state determining means 46 receives the input signal from the rotary switch 20, for example, from the switch 2.
0 is continuously rotating in the same direction and at high speed for a predetermined number of times or more, automatic waveform scrolling is selected. The normal one-time waveform scrolling is decided upon.

Example Hereinafter, the present invention will be described in detail based on the accompanying drawings.

FIG. 2 is a block diagram showing a waveform observation device having an automatic waveform scrolling function to which the present invention is applied. In the figure, 16
1B is a channel that sends analog input signals such as voltage, current, and power, and 1B is an A-D conversion that samples the input signal and converts it from an analog signal to a digital signal to create input data. 20 is a rotary switch that rotates in the right or left direction and generates the required waveform scrolling input signal; 22 is a rotary switch related to various setting items necessary for observing waveforms such as sampling speed, total number of sampling data, input range, etc.; These are other switches such as switches that generate settings or change signals. In addition, 24 receives these signals, creates input data according to the various conditions set and changed, and performs the processing necessary to convert it into a waveform and scroll it on the screen or record it on paper. It is an arithmetic device equipped with a CPU that performs the following operations. Further, 26 is a display device such as a CRT which receives the output from the device 24 and scrolls to display the waveform, and 2B is a recording device such as a dot printer which also receives the output from the device 24 and records the waveform.

Note that for observation of waveforms based on such sampling data, it is sufficient to have a display device 26 whose screen can be easily used, and the recording device 28 is not necessarily required. The arithmetic device 24 equipped with this CPU is, for example, a microcomputer, and includes a CPU <central processing unit> 30. It is composed of a ROM (read-only memory) 32, a RAM (read-writable memory) 34, an input port 36, an output port 38, a pass line 40, and the like. The CPU 30 corresponds to the central brain of a microcomputer, and executes overall control according to program instructions, performs tricks and logical operations, and temporarily stores the results. It also controls peripheral devices, and is subject to that control as well. The ROM 32 stores a control program for controlling the entire waveform observation device, a waveform scroll display processing program, and the like. Further, the RAM 34 stores input data such as voltage and current, output data of the calculation results of the CPU 30, and the like. The input port 36 includes an A-D converter 1B,
Rotary switch 20. Other switches 22 and the like are connected. Further, a display device 26, a recording device 28, etc. are connected to the output port 38. The path line 40 includes an address bus line, a data bus line, a control path line, etc. for connecting the path line 40, and is also connected to peripheral devices.

Next, the operation of this embodiment will be explained.

FIGS. 3 and 4 are flowcharts consisting of steps P1 to P29 showing an example of a waveform scroll display processing program based on human data. To run this program, first set FLAG, C0NT, 5PEE on Pl.
Each variable such as D is initialized to O. In addition, FL
AG is a flag that indicates the state of waveform scrolling; setting it to O indicates that it is not in waveform scroll mode, setting it to 1 indicates that it is in waveform scroll mode to the right, and setting it to 2 indicates that it is in waveform scroll mode to the left. waveform scroll mode. Further, C0NT indicates the number of times the normal one-time waveform scrolling is performed continuously at high speed in the same direction to the right or left.

Further, 5PEED indicates a counter for determining the rotation speed of the rotary switch. Next, go to P2 and rotary switch 20. Alternatively, it is determined whether or not there is manual switch power due to the operation of other switches 22 or the like. If yes, go to P3 and determine whether the operated switch is the rotary switch 20 or its corresponding switch 22, and if it is the rotary switch 20, whether it was rotated to the right or left. Note that the presence of switch input is detected by the rising or falling edge of the pulse. Incidentally, there are two signal lines connecting the rotary switch 20 and the input port 36, and different lines are used depending on the direction of rotation. When the rotary switch 20 is turned to the right,
Go to P4. At P4, FLAG is determined. If FLAG is O or 2, go to P5. At P5, FLAG is set to 1 in order to set the waveform scroll mode to the right according to the rotational direction of the rotary switch 20. Also, C0N
Set both T and 5PEED to ○. Next, go to P6. P6
Now scroll the waveform once to the right. Next P7
to determine whether to terminate program execution. No
In this case, return to P2.

At P2, if there is no new switch input, it is determined that there is no input, and by continuing to rotate the rotary switch 20,
The interval between the rising or falling edge of the next pulse (
Go to P8 to check the time. At P8, FLAG is determined. If LAG is 1 or 2, go to P9. P
In step 9, 1 is added to 5PEED to set a new 5PEED.

Next, go to plo. PIO determines whether 5PEED is 20 or less, whether it is over 20 and 100 or less, or whether it exceeds 100. Note that such a constant 20.100 can be changed. If 5PEED is 20 or less, P7, P2, P8
, P9, and Plo are repeated. Therefore, rotate the rotary switch 20 at high speed and
If the next pulse is generated before D exceeds 20, P
At 2, there is a switch input, at P3, the rotary switch 20 rotates to the right, and at P4, it is determined that F is △G1, and it goes to Pll. At pH, 1 is added to C0NH and a new C0NT is set. .In addition, if the rotary switch 20 continues to be rotated clockwise at high speed, CONT will also continue to increase.Next, go to PI3.In PI3, it is determined whether CONT is less than or equal to 100 or greater than 100. The constant 100 can be changed.C0NT is 100
Go to page 13 in the following cases. In P13, the waveform is scrolled once to the right. Next, go to P14. p14
Then, set 5PEED to O, go through P7, and return to P2. In this way, if the rotary switch 20 is continuously rotated to the right a predetermined number of times, for example, 3 rotations or more, and at high speed, the waveform scrolls only once in the right direction at high speed for one screen (approximately 15 cm). After displaying one after another, the PI
3, it is determined that C0NT exceeds 100. Next, PI3
go to

The PI3 executes the subprogram shown in FIG. 5 to perform automatic waveform scroll processing in the right direction. that time,
First, in P2S5, a message indicating that waveform scrolling will be performed automatically is displayed. Note that when such automatic waveform scrolling is displayed, there is no need to continue rotating the rotary switch 20 any further. Next, go to P2S5. In P2S5, the waveform is scrolled to the right only once. Next, go to P2S5. At P2S5, it is determined whether the end of the waveform based on the input data has been reached, that is, whether all the output data stored in the RAM 34 has been displayed. If NO, the presence or absence of switch input is determined in P2S5. If there is no switch input, return to P2S5, P2S5, P2S5, P2S5
Repeat these steps to automatically scroll the waveform. During such automatic waveform scrolling, P2S
If it is determined in step 5 that there is a switch input, the process goes to P2S5. In P2S5, the operated switch is determined. When there is a pano J that rotates the rotary switch 20 in the opposite direction (leftward) or operates another switch 22 unrelated to waveform scrolling, the process goes to P2S5. In P2S5, after finishing automatic waveform scrolling and clearing the display,
Return to main program. Note that the process also goes to P2S5 when it is determined YES in the previous P2S5. Also, even if there is an input that rotates the rotary switch 20 in the right direction, P2S5
to continue automatic waveform scrolling.

In the previous Plo, 5PEED is over 20, but it is 100
If it is determined that the rotary switch 20 is rotated at a low speed, the rotation speed of the rotary switch 20 is low, so the rotation speed goes to Plo.

Set C0NT to O in Plo. Also, SP to E with PIO
If it is determined that D exceeds 100, the rotation of the rotary switch 20 is almost stopped, so the PI
Go to 3. FLAG, C0NT, 5PEED in PI3
Set each variable to O.

In addition, if FLAG is determined to be O in the previous P8, P
18, and similarly set the variables FLAG, C0NT, and 5PEED to O.

The case where the rotary switch 20 is rotated to the right has been described above, but the operation is almost the same when the rotary switch 20 is rotated to the left, except that the direction of the waveform scroll is different. Therefore, in the following, steps related only to the leftward rotation of the rotary switch will be mainly explained. When the rotary switch 20 is rotated to the left, first, there is a switch input at P2, and after it is determined that the rotation direction of the switch 20 is to the left at P3, the process goes to PI3. PI3 determines FLAG. If FLAG is O or 1, go to P2O. P
At 2O, according to the rotation direction of the rotary switch 20,
To set the waveform scroll mode to the left, set FLAG
Set to 2. Also, set both C0NT and 5PEED to O. Next, go to P21. In P21, the waveform is scrolled once to the left.

Also, if FLAG is determined to be 2 on p19, p
Go to 22. At P22, 1 is added to C0NT to set a new CONT. Next, go to P23. C in P23
Determine whether 0NT is less than or equal to 100 or greater than 100. C
If 0NT is less than 100, go to P24. In P24, the waveform is scrolled once to the left. Next P25
go to In P25, set 5PEED to O. Also, P23
If it is determined that C0NT exceeds 100, the process goes to p2B. In P2B, automatic waveform scroll processing to the left is performed.

Therefore, the rotary switch input and 5PEED and C
The relationship with 0NT is shown in a timing chart as shown in FIG. However, the figure (a) shows that when the rotary switch is rotated at high speed in the same direction, right or left, (b)
The figure shows the case of low speed rotation. In this way, when the rotary switch 20 is rotated at high speed, the interval between pulses becomes shorter, and when it is rotated at a lower speed, the interval between pulses becomes longer. Therefore, the interval between pulses is determined by determining the check timing of the switch input, and is counted by the variable 5PEED. Then, 5P
It is clear that the value of EED allows transition from normal one-time waveform scrolling to automatic waveform scrolling. By the way, in the above program, 5PEED is a constant number of 2
If it exceeds 0, it is regarded as low speed and the variable C0NT is cleared. When the rotary switch 20 is rotated at high speed, C0NT increases up to a constant number 100 according to the number of pulses generated, so judge the value of C0NT. and normal 1
The waveform scrolling process has been changed from one-time waveform scrolling to automatic waveform scrolling.

In this way, even if normal one-time waveform scroll processing or automatic waveform scroll processing is performed in the right or left direction, when the settings related to various setting items or the switches for changing them are operated, the switch is switched at P2. If there is an input, it is determined that the switch operated at P3 is another switch 22, and the process goes to P28.

At P28, the variables FLAG, C0NT, and 5PEED are all set to O. Next, go to P2O. In P2O, settings of various setting items are changed. Incidentally, in the above program, if there is an input from a switch 22 other than the rotary switch, if 5PEED becomes larger than a certain number of 20 or 100, and if it is determined that the rotary switch 20 is rotating at a low speed or not rotating, If it is determined that the rotary switch 20 has rotated in the opposite direction, the variable C0NT is cleared, so unless the rotary switch 20 is rotated continuously in the same direction to the right or left and at a high speed, it will not work normally once. This means that you will not be able to switch from automatic waveform scrolling to automatic waveform scrolling.

According to the present invention, which has been described in detail, it is possible to perform normal one-time waveform scrolling and automatic waveform scrolling with a single rotary switch, making it unnecessary to add a dedicated switch for automatic waveform scrolling, which is convenient. is. Also, if you want to scroll the waveform slowly to the left or right, just rotate the rotary switch accordingly, or if you want to scroll the waveform quickly to the left or right in the same direction. By rotating the rotary switch exactly as desired for a short period of time, the waveform can be automatically scrolled without any further operation, resulting in excellent operability.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing a waveform observation device having an automatic waveform scrolling function according to the present invention. FIG. 2 is a block diagram showing a waveform observation device having an automatic waveform scrolling function to which the present invention is applied. 3 and 4 are flowcharts showing a waveform scrolling display processing program based on human data adopted in the same waveform observation device, and FIG. 5 is a flowchart showing an automatic waveform scrolling display processing subprogram in the same program. Figure 6 is a timing chart showing the relationship between the rotary switch input and the variables 5PEED and C0NT in the same waveform observation device. (B)
The figure shows the case of low speed rotation. Figure 7 is a diagram showing the correspondence between rotary switch operation and waveform scrolling on the screen in a conventional conventional waveform observation device having a normal waveform scrolling function. The figure (b) shows a waveform scroll of a little more than three revolutions. FIG. 8 is a diagram showing the arrangement relationship of the rotary switch and the automatic waveform scroll transition switch in a waveform observation device that is an improved version of the same waveform observation device and has an automatic waveform scrolling function.

Claims (2)

[Claims] (1) A rotary switch that generates a required waveform scrolling input signal, a switch input detection means that detects the presence or absence of switch input, an input switch discrimination means that discriminates the type of input switch, and a rotary switch that responds to the input signal from the rotary switch. , waveform scrolling state determining means for determining whether the state of waveform scrolling is one-time waveform scrolling or automatic waveform scrolling; waveform scrolling execution means for executing the determined waveform scrolling state;
1. A waveform observation device having an automatic waveform scrolling function, comprising: a display device that scrolls and displays waveforms. (2) When receiving an input signal from the rotary switch indicating that the switch is continuously rotating in the same direction and at high speed for a predetermined number of times or more, the waveform scrolling state determining means determines automatic waveform scrolling. A waveform observation device having an automatic waveform scrolling function according to item 1.