JP2689156B2 - Waveform measuring device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention generally relates to a waveform measuring apparatus using a microcomputer, and more specifically, a user inputs with a keyboard or a card using an integrated circuit memory. The present invention relates to a programmable waveform measuring device capable of controlling a measuring unit by a program for executing the program.

(Prior Art) The waveform measuring apparatus of the present invention allows a user to perform desired measurement, data processing, display, etc. by designating and changing the functions of the measuring apparatus in an interactive manner. In particular, the measurement result as a waveform, that is, a variable x having a spread
Waveform measuring apparatus adapted to display in xy two-dimensional manner what kind of value an observed value that is a function of x has over a certain range (which is determined by the measurement conditions such as what kind of measurement is performed) Useful for.

By the way, examples of such a waveform measuring device include an oscilloscope and a spectrum analyzer.
The period, amplitude or spectrum size of the observed waveform to be measured, spectrum frequency, etc. were measured. However, the measurement based on such waveform observation has a low accuracy, and there is a drawback that the measurement (for example, average value or instantaneous maximum value) that cannot be directly displayed on the display screen cannot be easily performed. It was

In recent years, in order to compensate for such drawbacks, in addition to the normal measurement function performed by setting measurement parameters from the surface panel of the waveform measurement device, various waveform measurement devices that allow the user to perform extended measurement with specific key operations have been commercialized. Has been done.

The method adopted in such a waveform measuring device will be described below.

The first method is disclosed in Japanese Patent Laid-Open No. 63-201525, in which a plurality of measurement functions frequently used by the manufacturer are registered and defined in advance, and this function is assigned to a plurality of function keys. (Including the function that displays the identification name of the function).

When there are more extended measurement functions than the number of function keys, the extended measurement functions are registered in a tree shape corresponding to the function keys, and the function key functions are changed by operating the menu keys. The user can use the registered extended measurement by operating the menu key and the function key while looking at the menu and the identification name on the display screen.

The second method is that the user operates the measurement keys of the waveform measuring device to perform the desired measurement, and the measurement parameters at that time are stored in the internal memory with the save key and the numeric key, and when used, the recall key and the numeric key are used. The desired measurement is performed by designating it (in other words, the registered address in the memory). In addition, the one that has such a save / recall function is "Spectrum Analyzer MS710C" of Anritsu Technical, which was issued in March 1986.
It is described in.

This method is designed to register the measurement function of the specific condition selected by the user among the normal measurement functions of the waveform measuring device and call it one after another as needed, but in a broad sense. It is considered to be an extended measurement, and has the effect of omitting the measurement operation.

The third method is Anritsu Technical's "Personal Computer Built-in, 100K-2," issued in September 1986.
GHz network / spectrum analyzer MS620J "and" embedded computer system supporting high-speed ATE: PT
It is described in "A". This method has a built-in computer function that can be programmed by a user, and a desired measurement procedure, processing of measurement data, display, etc. are programmed and stored, and the execution key is pressed to perform measurement.

Further, this method is mainly used for an apparatus that performs automatic measurement, and a measurement program and measurement data can be saved and loaded using an external storage device.

The fourth method is "Downloadable Progra
It is a method called "mming". This is because an external computer writes a command sequence for setting according to the measurement procedure to the nonvolatile memory inside the spectrum analyzer via the general-purpose interface bus GPIB (HPIB), and when measuring, for example, spectrum analyzer By pressing the [SIFT] key, the numeric key, and the [Hz] key (unit key) with, the measurement is executed by the measurement procedure written in the nonvolatile memory.

(Problems to be Solved by the Invention) However, the conventional waveform measuring apparatus as described above has the following drawbacks.

The waveform measuring apparatus having the first method can perform only the predetermined extended measurement supplied from the maker, and the user cannot change the measurement content or add the function.

In the case of the measuring instrument having the second method, only a series of normal measurement operations is registered, and high-level processing operations such as processing or judgment on measurement data and subsequent branch operation or repeated execution are performed. Can't do. Therefore, only the simple extended measurement desired by the user can be registered.

Also, the registered measurement procedure is simply stored in the internal memory and does not have a dedicated key with the name of the measurement procedure. The desired measurement procedure cannot be invoked unless it is put in place.

In the case of the waveform measuring device having the third method, it has an advantage in terms of automation of measurement. However, in the waveform measurement device that executes the measurement program stored in the internal memory with the execution key, you can load different measurement programs from the external storage device each time you want to execute different measurement programs one after another. However, there is a problem in that any one of the plurality of measurement programs cannot be immediately executed in any order.

"Downloadable Programming" in the fourth method
In the case of, it seems that some of the above problems have been solved, but there is the inconvenience of requiring an external computer when creating a program, and the external computer "control command for GPIB + spectrum Since it is necessary to create a program as a sequence of "setting commands for controlling the analyzer", the scale of the program becomes large and it takes time to create it. There is also a drawback that the measurement menu cannot be defined corresponding to the function keys.

The purpose of the present invention can be summarized from a comprehensive standpoint including the above-mentioned problems. It is a high-performance automatic measuring device which has a structure capable of independently functioning by itself and which can be programmed by a user. It is to provide a waveform measuring device having all of the functions of.

(A) It has a structure in which an automatic measuring device unit and a user program editing / creating device unit are integrated.

(B) A display unit that displays information including a waveform as measurement data, a plurality of function keys, and a plurality of measurement keys are collectively arranged on the front panel so that the user can easily operate them.

(C) Corresponding the function keys to the measurement program so that the user can flexibly use the function keys, a dedicated variable corresponding to the plurality of function keys is built in, and the measurement program corresponding to each function key can be edited and created. To

(D) By displaying the function names of the plurality of function keys on the display screen corresponding to each function key, and selecting and pressing one of the function keys corresponding to the desired measurement program from the display, One-touch dedicated measurement is possible.

(E) An interrupt function is provided, and a plurality of measurement keys and function keys can be operated by the user at the same level. That is, since the measurement parameters set by the measurement program and the measurement key are at the same level, it is possible to easily change the measurement parameter by operating the measurement key when it is desired to change the measurement parameter instantly.

(Means for Solving the Problem) In order to achieve the above-mentioned object, a waveform measuring apparatus of the present invention includes a measuring section, a control apparatus for controlling the measuring section, a user program editing / creating apparatus, and a display control section. And the program control section are housed in a single housing, and the front panel of the housing has an integrated structure including a display, a plurality of function keys and a plurality of measurement keys, and dedicated communication between the insides. The waveform measuring device is capable of automatic measurement.

By providing the measurement display control unit, the function key display control unit, and the program display control unit in the display control unit, the integrated structure can be complemented in terms of display function, and is made easy for the user to use. .

The program control unit includes a program memory, a data memory, a variable memory corresponding to the plurality of function keys, and a function key input processing unit and a program execution unit.

The user program editing / creating apparatus includes an editing means for receiving input information from the keyboard as an ASCII code, creating a program to be executed by the program execution unit, and writing the program in the program memory.

The program execution unit can control whether or not the information is transmitted from the measurement key to the measurement control device.

In addition, the measuring unit and the data memory are connected by a set of buses.

Here, the measuring unit has a function of performing a desired measurement,
The measurement key is for inputting conditions for performing a desired measurement, and the measurement control unit responds to information from the pressed measurement key or a command issued by the program execution unit to interpret information in the program memory. , Has a function of causing the measurement unit, the data memory, and the display control unit to perform operations.

(Example) Here, a user program editing / creating device 5 described later
An example in which the replaceable memory card 54 is not used will be described as a first embodiment, and an example in which the memory card 54 is used will be described as a second embodiment.

[First Embodiment] FIG. 1 shows the configuration of an embodiment of the present invention.

In FIG. 1, a measuring unit 1 frequency-converts an input signal, amplifies the intermediate frequency and detects the signal, and further performs signal processing such as A / D conversion to detect the level of the input signal with respect to the frequency.

The control device 2 includes a measurement control unit 21, a data processing unit 22, and a control input processing unit 23. Each of these operates according to the information from the program execution unit 42 when the measurement program input from the user program editing / creating apparatus 5 is executed, and otherwise operates with the information from the measurement key 31.

The front panel 3 has a measurement key 31 and function keys F1 ...
It consists of F5 and indicator 32. The measurement key 31 is used to set measurement conditions such as the measurement center frequency, frequency span, reference level and resolution bandwidth when measuring the input signal. The function keys F1 to F5 are used by the user program editing / creating device 5 for the user. Has been made available by creating a measurement program. The function keys F1 to F5 are located right next to the display unit 32, and the function names of the function keys F1 to F5 are displayed on the display unit 32 as described later.
When it is displayed on 32, it can be recognized correspondingly.

The display control unit 6 includes a measurement display control unit 61, a program display control unit 62, and a function key display control unit 63,
The display 32 is controlled according to the purpose.

The user program editing / creating device 5 basically comprises a keyboard 51, an input / output interface (input / output interface) 52 and an editing means 53. The keyboard 51 is composed of a series of keys such as numeric keys, character keys, symbol keys, and command keys for editing, and is mainly based on control commands and control commands for a user who edits a program to control each device in the device. A key for inputting an edit command for creating a measurement program and an execution command for executing the measurement program. In this example, each of these instructions is input from the keyboard 51 in a language close to the basic language and output in ASCII code. Therefore, instead of the keyboard 51, any of these commands may be input from another input device as long as it can be input to the input / output interface 52 by ASCII code.

The edit means 53 receives the coded control command and the edit command matched with the interface at the input / output interface 52, creates a measurement program based on the control command, and writes the measurement program in the program memory 412. On the other hand, the measurement program is sent to the program display control unit 62 so that the measurement program is displayed on the display 32. The editing means 53 is designed so that the editing user can complete it while viewing the program being created. Also, editing means
When the execution instruction is received from the keyboard 51, the instruction 53 instructs the program execution unit 42 to interpret and execute the measurement program.

The following information is necessary for the user to edit and create the measurement program. In other words, the control command for controlling each device in the device is the measurement unit 1
Control command for controlling each device in the device, data processing command for processing the measurement result into desired data, measurement display command for displaying the measurement result or the processed data in a desired form, function key There are function key information related to F1 to F5 and a key display control command for displaying the function key information.

It should be noted that some of these control commands are stored in advance in the subroutine memory 44 as a system subroutine so that they can be read and used by the measurement program.

The measurement program created by the editing means 53 is written in the program memory 412. The variable memory 413 is provided with variables corresponding to the function keys F1 to F5, receives setting information from the set function keys F1 to F5 from the function key input processing unit 43, and receives this setting information from the value of the variable. Memorize as.

The program execution unit 42 reads the values of the measurement program and the subroutines and variables written in the measurement program from the program memory 412, the subroutine memory 44, and the variable memory 413, interprets the instructions on the measurement program, and controls the contents. Send to device 2. In addition, the program execution unit 42 controls the control input processing unit 23 whether or not the control device 2 receives information from the measurement key 31.

When the measurement program is executed, the key display control unit 63, which has received the key display control command for displaying the function key information, causes the display 32 to display the function key information in the content of the measurement program. When the desired function keys F1 to F5 are set based on the displayed information, the measurement control command in the contents of the measurement program is displayed in the measurement control unit 21, the data processing command is displayed in the data processing unit 22, and the measurement display is displayed. The command is sent to the measurement display control unit 61 and executed. Since the data processing unit 22 processes the measurement data at high speed,
It is connected to the measurement unit 1 and the data memory 411 by a dedicated bus.

In the above configuration, the memory device 41 is the data memory 41.
1 includes a program memory 412 and a variable memory 413. Further, the program control unit 4 includes a memory device 41, a program execution unit 42, a function key input processing unit 43, and a subroutine memory 44.

In addition, the following hardware configurations include a CPU.
A control device 2, a program execution part 42 and a function key input processing part 43 constituting a program control part 4, a display control part 6 and a user program editing / creating device 5. Note that CP
U is also used for each component.

 Next, the structure of the present invention will be described.

According to the present invention, each component in FIG.
It is characterized in that it is housed in one housing as shown in FIG. Note that the keyboard 51 is separated for the sake of convenience, and this can also be integrated with the housing.

In particular, in addition to the general measurement means such as the measurement unit 1, the measurement control unit 21, the measurement display control unit 61 and the display unit 32, the function keys F1 to F5, the user program editing / creating device 5, the program control unit 4, etc. By preparing as one,
It has the feature that the user can easily create an expanded measurement program and can execute the operation with one touch by pressing the function keys F1 to F5. Moreover,
The user program editing / creating device 5 and the program control unit 4 are computers provided with dedicated subroutines that can be used by the user, and are also controllers. The structure in which such a function is integrated as a waveform measuring device is very convenient for the user to perform various measurements exclusively.

 The specific operation of this embodiment will be described below.

In the case of normal measurement without using a measurement program In this case, the control unit 2 controls the measurement unit 1 to perform measurement according to the condition set by the measurement key 31, processes the measurement data, and then the measurement display control unit. It is displayed on the display 32 via 61.

When an operator creates a desired measurement program and executes the measurement program to perform measurement Hereinafter, a specific embodiment will be described based on an example of an actual measurement program.

A) Creation of measurement program Table 1 lists the main edit commands, execution commands, dedicated subroutines and statements necessary for creating the measurement program (note that Table 1 shows the contents of the second embodiment). Also included). The control instructions are shown in Table 2, and these control instructions are programmed using the above statements. The subroutine is also a kind of control command.

As an example, FIG. 3 shows a general flow of a measurement program in which a plurality of measurement items are assigned to the function keys F1 to F5.

The line numbers and instructions in FIG. 3 are line numbers in the detailed measurement program shown in the tables of FIGS. 6 (a) to 6 (f). The procedure for creating a program will be described below mainly with reference to FIG.

A) Initial setting If you do not want to accept the setting command from the measurement key 31 on the panel as an interrupt during execution of the measurement program created by the user program editing / creating device 5, write and accept the panel lock command (1460 CALL PNLL). Write the panel unlock command (CALL PNLU) if desired.
In either case, since a system subroutine (command described by "CALL name") is prepared in the subroutine memory 44, the command may be written in a predetermined format.

A command for initializing the measuring unit 1 and the display 32 is input. A command (PUT "INI") for initialization and a system subroutine for display are prepared in advance, so it is sufficient to write them.

B) Definition and display of function keys F1 to F5 A system subroutine (CALL DEF (variable number, "name")) is provided for this purpose. Use the function keys F1 to F5 for the instructions to read this subroutine. Write the corresponding variable number and measurement item name in the specified format.

In this example, the function key F1 has "VHF" (VHF
Band booster gain measurement), F2 “BS-IF” (BS tuner IF band booster gain measurement), and F3 “MIXER” (mixer loss measurement).

C) System variables corresponding to function keys F1 to F5
Write the default instruction that sets EX1 to EX5 to the value "0".

D) When executed, write an instruction to search which function key F1 to F5 on the panel is selectively set.

E) Function keys F1 to F5 are selected. Write the command to select the measurement routine according to the set measurement item.

Note that, for example, when both function keys F1 and F2 of the function keys F1 to F5 are pressed at the same time, the smaller one of the variables is given priority, for example, the F1 key is given priority, and the corresponding measurement routine Should be selected.

F) Create a measurement routine according to the measurement item.

G) When executed, write an instruction to return to the state of c) so that the setting of function keys F1 to F5 is waited again after executing the measurement routine (usually RETURN
Command or GOTO command).

The writing of the measurement program in the above a) to g) is performed from the keyboard 51, but the measurement program to be written is sequentially written in the program memory 412 by the editing means 53, and at the same time, the display device is displayed via the key display control section 63. 32
Will be displayed.

B) Execution of Measurement Program (Measurement) When execution (REN) is instructed from the keyboard 51, the program execution unit 42 interprets the content of the measurement program written in the program memory 412 and controls each component. The operation will be described below based on the general flow of FIG.

B) Initial setting Since the program execution unit 42 has the panel lock command in the program memory 412, the measurement input key in the control input processing unit 23.
It is instructed to reject the information from 31 and follow only the information from the program execution unit 42. If there is a panel unlock command, the user is instructed to follow both the information from the measurement key 31 and the command from the program execution unit 42.

Next, the program execution unit 42 reads a command for initializing the measurement unit 1 and the display unit 32 from the program memory 412, and sends a control command to the measurement unit control unit 21 and the measurement control display unit 61 via the control input processing unit 23. The measurement unit 1 and the display unit 32 are sent out to be initialized. In this case, a control command (“INI”) for initialization is prepared in the subroutine memory 44 in advance. The control command is, for example, the measurement center frequency.
1100MHz, frequency span 2200MHz, reference level 0dBm, etc. In the measurement program after this, unless a new control command is set in the measurement routine, the measuring unit 1 and the display 32 continue to operate under the conditions according to the control command.

B) Next, the program execution unit 42 reads the subroutine for the definition from the subroutine memory 44 by the definition command of the function keys F1 to F5 of the measurement program,
Function keys F1 to F5 specified in the measurement program
Define the variable and the name of the measurement item. Further, the program execution unit 42 is different from the key display control unit 63 in that the function keys F1 to
Instruct to display the name of the measurement item in association with F5 (so to speak, you have given that function name to function keys F1 to F5). Function keys F1 to F5
FIG. 4 shows an example in which the names of are displayed.

C) Next, the program execution unit 42 sets the system variables EX1 to EX5 in the variable memory 413 to the value "0".

D) The program execution unit 42 searches whether or not the values of the system variables EX1 to EX5 in the variable memory 413 are set to "1" until they are set. That is, the program execution unit 42 waits for information from the function keys F1 to F5.

In this state, the operator looks at the function names of the function keys F1 to F5 displayed on the display screen of the display 32, selects the desired function key F2, and presses it (for example, the fourth
In the figure, press the second key from the top). Next, the function key input processing unit 43 sets the value of the variable (EX2) corresponding to the pressed function key F2 among the variables in the variable memory 413 to “1”.

(E) The program execution unit 42 detects which variable has a value of “1” and jumps to the corresponding measurement routine (instruction starting from line number 3300) in the program memory 412.

F) According to the instruction written in the measurement routine, a control instruction is sent to the control device 2 to execute the measurement.

G) After completing the measurement corresponding to the previously pressed function key F2, the program execution unit 42 waits again until the next function key is set in the above state c).

H) The operation after the next function key is set is the same as the above D) to G).

Here, measurement routine (command starting from line number 3300)
The main operation in FIG. 6 will be explained by picking up from the detailed measurement program of FIGS. 6 (a) to (f).

a) GOSUB command at line number 3370 That is, line numbers 3520 to 3850 are the setting of parameters used in the subsequent line numbers.

Line numbers 3750 FREQ = 1E9 and 3580 SPAN = 1E9 are for setting the measurement center frequency and frequency span, respectively.

b) GOSUB command at line number 3380 Line number 6040 PUT “AMB 0” is a control command for the data processing unit 22 to stop the operation of the A channel memory and the B channel memory in the data memory 411. is there.

The WRITE command in line numbers 6050 and 6060 uses the parameters set in line numbers 3570 and 3580 to set the center frequency to 1000.
Measurement control unit 21 by command to set MHz and frequency span 100 MHz
Is an order for.

c) It is the setting of the character string used for displaying on the display unit 32 at the line number after the GOSUB instruction at the line number 3390.

d) GOSUB command at line number 3410 The command CALL CDH at line numbers 6220 to 6240 is a subroutine command for displaying the character string in the GOSUB command at line number 3390, and is a command to the measurement display control unit 61. It is the display of the next operation menu accompanying the redefinition of the next function key.

The command CALL DEF in line numbers 6250 to 6290 is a command for redefining and using the function key in this measurement routine.

If you press the function key F1 here, EX1
= 1. PUT “BWR 1”, PUT “BRD at line number 6410,6430
0 "is an instruction for the data processing unit, which is an instruction for writing to the B channel memory of the data memory 411 and an instruction for prohibiting reading. Line number 6420 PUT" SWP "
Is an instruction to the measurement control unit 21 for a single sweep instruction.

e) GOSUB command at line number 3430 The CALL command at line numbers 6590 to 6630 is a command for redefining a function key and its display command, and a display command for the previously set character string. That is, it is the display of the next operation menu.

Here, if function key F1 is set, line number
The memory conversion command called CALL CONV on the 6730 is the data processing unit 22.
Be issued to

f) GOSUB command at line number 3405 A drawing command of a standard line using a subroutine command related to display, which is a command to the measurement display control unit 61.

g) GOSUB instruction at line number 3470 A write command to the data memory 411 is issued at line number 6800 PUT “AWR”, and a free trigger condition is set at line number 6820 PUT “TRG 0” (that is, the initially set sweep condition). The command to sweep with is sent to the measurement controller 21 and the line number 6830 CALL CRN
The command for displaying the data written in the data memory 411 in (6) is sent to the measurement display control unit 61.

h) Line numbers 3480 to 3500 set (clear) the system variables EX1 to EX5 corresponding to the function keys F1 to F5 to the value “0”.

i) Return to the initial state by the RETURN instruction at line number 3510 and the GOTO instruction at line number 1270.

 As described above, there are the following functional features.

-Since the measurement function and the dedicated computer function are integrated, dedicated subroutines and variables can be built in. Therefore, a complicated measurement program can be easily edited and created.

-The user can edit and create a desired measurement program using the variables and subroutines corresponding to the function keys F1 to F5, and the execution can be displayed on the display screen of the display unit 32 with the function names of the function keys F1 to F5. You can do it with a one-touch operation. By defining variables and subroutines in the measurement program each time, a tree-shaped measurement program is assembled,
Can be performed.

-The user can edit and create a measurement program by inputting a panel lock release command at an appropriate place in the measurement program to
The measurement key 31 on the front panel 3 can be operated at the same level as the instruction in the measurement program.

This is convenient when it is necessary to slightly change the measurement conditions during execution of the measurement program due to conditions such as the signal under measurement. This is because, when interrupts are not possible, the measurement program must be corrected and edited even with such slight changes.

Second Embodiment In this embodiment, the replaceable memory card 54 can be used in the user program editing / creating apparatus 5 described above, so that the user can edit and create a measurement program with higher expandability. There is a feature that you have done.

FIG. 5 shows the configuration of such a user program editing / creating apparatus 7. In this embodiment, the user program editing / creating apparatus 5 in FIG. 1 is replaced with the user program editing / creating apparatus 7, and the basic elements are the same.

As the memory card 54 in FIG. 5, an IC memory,
A magnetic storage card, an optical card, etc. can be used. The card processing unit 55 drives the memory card 54 to write and read data in accordance with instructions from the editing means 53.

In addition to the first embodiment, the file command and memory card subroutine command in Table 1 can be used as the information that can be input from the keyboard. Accordingly,
The functions of the subroutine memory 44 and the program execution unit 42 are increased.

Characteristic functions when the memory card 54 is used will be described.

When editing and creating a measurement program, a basic measurement routine, for example, the measurement routine at the stage (f) in FIG. 3 must be prepared in advance in the memory card 54. Allocate to F1 to F5, receive the setting information (variable value) from the function keys F1 to F5, and write the instruction to branch to each measurement routine. That is, there is a feature that the measurement function can be easily expanded on the user side.

Execution of measurement program (measurement) When editing and creating the measurement program, by writing the memory card subroutine instruction in the measurement program, the memory card 54 can be directly executed by the instruction of the measurement program.
The stored contents (measurement data) can be read or written from. Therefore, it is easy to collect data.

For example, in FIG. 6, the program execution unit 42 displays line numbers
6930 CALL OPNO “% BSIF” command, memory card 54
The file in which the name is% BSIF is prepared for writing, the measurement data is collected by the FOR-NRXT processing of line numbers 6950 to 6980, and the data is written to the file in the memory card 54 by the line number 6970 CALL DASV command.

(Effects of the Invention) Since the present invention has the characteristic structure and function as described below, it has the corresponding effects and the overall effects.

(A) In addition to general measuring means such as a measuring unit, a measurement control unit, a measurement display control unit and a display unit, a function key,
A user program editing / creating device, a program control unit and the like are integrally provided. Therefore, there is an effect that the user can freely create various measuring programs and use them in a dedicated manner.

(B) Since a dedicated internal bus can be used, an internal communication function can be achieved and high-speed control or data processing can be performed.

(C) Since the measurement function and the dedicated computer function are integrated and the dedicated subroutines and variables are incorporated, a complicated measurement program can be easily edited and created.

(D) In particular, the user can define a plurality of edited and created measurement programs and their function names by associating them with function keys with a dedicated subroutine, so select the desired measurement program by looking at the function names on the display screen. By pressing the function key, you can perform measurement with one-touch operation.

(E) The user can operate the measurement keys on the front panel at the same level as the instructions in the measurement program while the measurement program is being executed.

This is convenient when, for example, the condition of the signal under measurement requires that the measurement condition be slightly changed during execution of the measurement program. In addition, the function key can be used as a part of the measurement key mainly when operating the measurement key to perform measurement. In this case, the measurement program defined in the function key has a measurement subroutine function in the operation of the measurement key.

(F) By making the memory card available, editing and creating a program becomes very convenient.

(G) Since the memory card can be accessed from the measurement program, it is easy to collect data.

[Brief description of the drawings]

FIG. 1 is a diagram showing the configuration of the first embodiment, FIG. 2 is a diagram showing the structure of the present invention, FIG. 3 is a general flow of a program, FIG. 4 is a diagram showing a display example of a display device, and FIG. FIG. 6 is a diagram showing the configuration of the second embodiment, and FIGS. 6A to 6F are diagrams showing a detailed program of the general flow in FIG. In the figure, 1 is a measuring unit, 2 is a control device, 3 is a front panel,
4 is a program control unit, 5 and 7 are user program editing / creating devices, 6 is a display control unit, 8 is a signal input terminal, 9 is a measured signal, 21 is a measurement control unit, 22 is a data processing unit, and 23 is a control input. Processing unit, 31 is a measurement key, 32 is a display, 41 is a memory device, 42 is a program execution unit, 43 is a function key input processing unit, 44 is a subroutine memory, 51 is a keyboard,
52 is an input / output interface; 53 is an editing means; 54 is a memory card; 55 is a card processing unit; 61 is a measurement display control unit;
Is a program display control unit, 63 is a function key display control unit, 411 is a data memory, 412 is a program memory,
413 is a variable memory, and F1 to F5 are function keys.

Continuation of the front page (56) References JP-A-63-108270 (JP, A) Actually developed 59-28794 (JP, U) "Electronics" Vol. 53, No. 6, pp. 105-114, 1980 “2432 Digital Storage Oscilloscope Operators Manual” 1987, Tektronix, Inc. PP. 5-1 to 5-2 5-66 to 5-75 Nikkei Electronics 1983 8-1 (No.322) pp. 222-223, published by Nikkei McGraw-Hill

Claims (1)

(57) [Claims] 1. A measuring unit (1) for measuring an input signal, a plurality of function keys (F1 to F5) for setting conditions for controlling the measuring unit, and a plurality of measuring keys (31). , And a display panel (3) on which the display (32) is arranged, a data memory (411) directly connected to the measuring unit and storing measurement data, and a display control unit (6) for controlling the display. A variable memory (413) for storing variables corresponding to each of the function keys that can be used in the program, a control command for controlling the measuring unit, a data processing command for processing the measurement data, And a program is edited by writing each command of the display control command for displaying the data in the desired form on the display unit, and the program is named and the file is named. A program generation means (5) for editing in accordance with the variable of the operation key, and a dedicated subroutine for forming a part of each of the above-mentioned commands and performing dedicated control, data processing, or display in the program. A sub-routine memory (44) for storing the function key, a function key display control unit (63) included in the display control unit for displaying the name of the function key on the display unit, and based on the variable When a part of the function key is selected, the program corresponding to the function key and a dedicated subroutine described in the program are read from the subroutine memory and executed, and a program execution unit (42) is executed. Controls the measurement unit, the data memory, and the display control unit based on the program Control device (2)
A waveform measuring device equipped with.