JP2002207611A - Software working bench - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a software working bench, which verifies the functions of the computer of the automatic flight control system of an airplane, to verify only a software part and to perform monitoring by steps. SOLUTION: The software working bench 20 is equipped with a condition setting part 10 and a display part 11 and verifies a control rule program 63 of an AFCS computer. The condition setting part 10 is composed of a data input part 1 and a data conversion part 2 and inputs condition data DS2 and displays output DSO1 of the control rule program 63 to verify the input and output. Further, DS20 can be inputted from the condition setting part 10 and one of outputs DSO21 to DSO2n of respective programs P1, P2, P3 to Pn in the program 63 or variables at necessary places of the respective steps can be displayed and monitored, so high-precision verification can be performed on the source code level in the program.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a software working bench, and more particularly to a software working bench capable of accurately verifying the inside of a program related to flight control mounted on an aircraft.

[0002]

2. Description of the Related Art A control program is stored in a computer of an autopilot system mounted on an aircraft, and when verifying the function of this computer, a hardware-dependent portion and a hardware-independent portion in the computer, that is, a hardware-independent portion, Part of the control law program must be verified. Fig. 3 shows the AFCS (Automatic Fl
ght Control System / Autopilot) FIG. 2 is a system configuration diagram when verifying a computer. In the figure, 40
Is a working bench, in which a simulated signal generator 41 for generating the same signal as a signal actually input to the computer is housed, and the inside thereof is composed of a voltage conversion unit 43 and a voltage monitoring unit 44. ing. Reference numeral 42 denotes a condition setting unit which sets conditions for generating a necessary signal to the voltage conversion unit 43.

[0003] Reference numeral 60 denotes an AFCS computer, which is a computer equivalent to that actually mounted on an aircraft. The computer 60 is connected to the working bench 40, receives an input signal from the working bench 40, and checks whether a predetermined output is obtained. The computer 60 takes in the A / D converter 61, the digital signal from the A / D converter 61, a hardware access unit 62 that generates a signal via hardware, and takes in the signal from the hardware access unit 62, A control law program 63 for calculating various flight conditions, a hardware access unit 64 receiving an output signal from the program 63 and outputting a signal via hardware, a hardware access unit 64
And a D / A conversion unit 65 for converting the digital signal of the above into an analog signal for controlling an actual device such as an actuator.

In the above configuration, the AFCS computer
When verifying 60, the conditions of the working bench 40
Set the conditions for items to be checked in the setting section, and
The simulation signal AS is generated from the voltage conversion unit 43 of the signal generation device 41.
And input it to the AFCS computer 60. Input
The signal AS obtained is converted into a digital signal DS by an A / D converter 61. ₁
And received by the hardware access unit 62
And the signal DS_TwoIs output and input to the control law program 63
Is done. The control law program 63 includes an input signal DS _TwoReceiving
And various flight control programs P₁, P_Two, P_Three~ P_n
The required operation is performed by₁Output
You. This signal DSO₁To the hardware access unit 64
Incoming, signal DSO via hardware_TwoIs output,
An analog signal that actually controls the device in the D / A converter 65
Converted to ASO and output from AFCS computer 60
Become. This output DSO is the voltage model of the working bench 40.
It is monitored by the monitor 44.

[0005] In the above verification, the input conditions and
This is to check whether or not a correct output corresponding to the input is obtained, and verify whether or not the AFCS computer 60 outputs a correct signal ASO with respect to the input signal AS under the set conditions. Therefore, the hardware access unit 62 responds to the input signal AS under the set conditions.
Whether the signal or DS ₂ is correct from by checking the hardware, but can be verified to some extent, individual program units P ₁ inside the control law program _{63, P 2, P 3 ~P} N Alternatively, it is impossible to monitor the operation state and variables for each step of each program, and only the output ASO as the operation result can be monitored. Therefore, even if errors or errors occur in each individual program unit, the entire output signal A
The SO may not change, and in such a case, the control law program 63 cannot be verified with high accuracy.
That, and the analog signal DS ₂ in which the control law program 63 is inputted, and the signal at the calculation process, will not be verified when there is a level error, such as being affected by noise.

[0006]

As described above, in the verification of the AFCS computer of the aircraft on the conventional working bench, the calculation state inside the control law program,
Since the state of the variable at each step cannot be monitored, input conditions are compared with conditions output from the AFCS computer, and only input / output conditions are monitored to perform verification. Therefore, the internal state of the control law program was not known, and high-precision verification could not be performed.

Therefore, according to the present invention, when a computer of an aircraft-installed autopilot is verified on a working bench, a working bench consisting of only software portions independent of the hardware of the computer is constructed, and each program constituting the software program is constructed. It is an object of the present invention to provide a software working bench capable of examining variables for each unit and each step.

[0008]

The present invention provides the following means (1) and (2) to solve the above-mentioned problems.

(1) A software working bench for verifying the function of control law software of a flight control computer mounted on an aircraft, a condition setting unit for setting input condition data of the software and executing the software. A display unit for displaying a result calculated by the software, wherein the condition setting unit can input the input condition data to the software and display the calculation result executed by the software on the display unit. And a software working bench, wherein each program unit or each step of each step of the software is designated and can be displayed on the display unit.

(2) A computer having a memory for storing control law software of a flight control computer mounted on an aircraft and executing the control law software; an input device for inputting input condition data to the computer;
A display device for displaying a calculation result executed by the control law software, wherein the computer can input the input condition data to the software and display the calculation result executed by the software on the display device. And a software working bench, wherein a program unit of the software or a necessary portion of each step is designated and can be displayed on the display device.

In (1) of the present invention, the working bench includes an aircraft flight control computer, for example,
The function of only software that does not depend on the hardware of the computer for the automatic control device is verified, and each program unit of the control law software or a variable at a necessary place for each step can be displayed on the display unit. . In the past, it was only possible to verify whether input / output conditions were correct, including the hardware-dependent part and the hardware-independent part of a flight control computer. Can be monitored, and highly accurate verification at the source code level can be performed.

In (2) of the present invention, input condition data is input from an input device, a computer, for example, a personal computer, executes a control law program of a flight control computer, and displays a calculation result on a display device. Since the software can be monitored for each step in the same manner as in the above (1), the verification of the control law program of the flight control computer by the personal computer can be performed with high accuracy using an apparatus having a simple configuration.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be specifically described below with reference to the drawings. FIG. 1 is a configuration diagram of a software working bench according to the first embodiment of the present invention. In the figure, reference numeral 20 denotes a software working bench as a whole, which comprises a condition setting unit 10 and a display unit 11 except for a hardware-dependent unit of an AFCS computer mounted on an aircraft. is there.

The condition setting unit 10 comprises a data input unit 1 and a data conversion unit 2 for inputting data corresponding to an input signal to be verified, and for internal program units P ₁ , P _{2 to} P _n to be verified. Is specified and input to the control law program 63. The display 11 can display the output from the control law program 63 or the variables in the middle of each of the programs P ₁ , P _{2 to} P _n , and the like.

The software working bench having the above configuration
At 20, a search is performed from the data input unit 1 of the condition setting unit 10.
When data corresponding to the input signal to be verified is input,
The data conversion unit 2 inputs this input data to the program.
Data DS_TwoOutput as This signal
DS_TwoIs output by the conventional hardware access unit 62.
Signal that matches the control signal
Input to the program 63, and the control law program 63
Program unit P₁, P_Two, P_Three~ P_nsmell
And perform the necessary arithmetic processing for each.
Output data DSO ₁Is output.

Conventionally, the output signal DSO ₁ outputs an analog signal ASO for finally controlling the device via the hardware access unit 64 and the D / A conversion unit 65 and is monitored by the voltage monitor unit 44 of the working bench 40. However, in the present invention, the hardware-dependent part, that is, the A / D converter 6
1. Since only the control rule program 63 excluding the hardware access units 62 and 64 and the D / A conversion unit 65 is verified, the output DSO ₁ is displayed on the display unit 11. As a result, the output DSO ₁ of the program corresponding to the input signal DS ₂
Is correct or not.

The software working bench 20 outputs the output data at an intermediate stage in each of the program units P ₁ , P ₂ , P _{3 to} P _{n in} the control law program 63 or at each step of each program. Can be checked individually.
In this case, the data input unit 1 of the condition setting unit 10, by entering the designation of each step of the internal data and necessary program to be verified, and outputs the input data DS ₂₀ of the data converter 2 is equivalent to the control Input to the rule program 63.

In the control law program 63, the input data D
Capture S _20, performs an operation at each stage, the middle of the variable data DS ₂₁ at the stage of the respective programs, DS _22, D
It calculates the S ₂₃ to DS _2N, send variable data at the indicated stage of these variables on the display unit 11 displays. Therefore, it is possible to display the middle of program variables to data DS ₂₀ entered by the condition setting unit 10 to the display unit 11 monitors this.

FIG. 2 is a configuration diagram of a software working bench according to a second embodiment of the present invention, in which the above-mentioned software working bench 20 is implemented by a personal computer. In the figure, a keyboard 13 corresponds to the data input unit 1 shown in FIG. 1 and inputs each item setting data. 1
Reference numeral 2 denotes a computer, for example, a personal computer or the like is used. Reference numeral 14 denotes a screen, which corresponds to the display unit 11 shown in FIG.
Reference numeral 15 denotes a memory in which a control law program 63 is stored. Based on input data from the computer 12, keyboard 13, and converts the data into the input data DS ₂ and DS ₂₀ of the control law program 63 in S1, S2
In step S3, the control law program 63 in the memory 15 is called to perform necessary processing. In step S3, processing for displaying the result is performed, and the result is displayed on the screen 14.

As described above, the condition data necessary for the verification is input from the keyboard 13, the control law program 63 in the memory 15 is called to the computer 12, and the output of the processed calculation result and the variables in the middle of the calculation of the program 63 are output. By displaying the screen on the screen 14 as necessary, the same verification as the software working bench 20 shown in FIG. 1 can be performed.

According to the first embodiment described above, only the control law program 63, which is a hardware independent part of the AFCS computer, is set by the software working bench 20 to condition data necessary for verification by the condition setting unit 10. In addition, since the output of the program is displayed on the display unit 11 and the variables in the necessary steps in the control law program 63 can be displayed and monitored, the source code level of the program can be verified. Highly accurate program verification can be performed. Further, as in the second embodiment, such a verification can be performed by storing the control law program 63 in the memory 15 and processing it by the computer 12 for verification. Simple and highly accurate verification can be performed as compared with verification using only input / output monitors.

[0022]

The software working bench of the present invention is (1) a software working bench for verifying the function of control law software of a flight control computer mounted on an aircraft, wherein input condition data of the software is set. A condition setting unit for executing the software, and a display unit for displaying a result calculated by the software, wherein the condition setting unit inputs the input condition data to the software, and executes the calculation result executed by the software. In addition to being capable of being displayed on a display unit, each program unit of the software or a necessary portion of each step is designated and can be displayed on the display unit. With such a configuration, conventionally, it was only possible to verify whether input / output conditions including a hardware-dependent portion and a hardware-independent portion of a flight control computer were correct or not. Enables monitoring at each step of the software, enabling highly accurate verification at the source code level.

In (2) of the present invention, a computer having a memory for storing control law software of a flight control computer mounted on an aircraft and executing the control law software, and inputting condition data to the computer And a display device for displaying a calculation result executed by the control law software, wherein the computer inputs the input condition data to the software and displays the calculation result executed by the software on the display device. In addition, it is characterized in that each program unit of the software or a necessary portion of each step is designated and can be displayed on the display device. With such a configuration, input condition data is input from the input device, a computer, for example, a personal computer, executes the control law program of the flight control computer, and displays the calculation result on the display device. Since the software can be monitored for each step, the verification of the control law program of the flight control computer by the personal computer can be performed with high accuracy using a device having a simple configuration.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a software working bench according to a first embodiment of the present invention.

FIG. 2 is a configuration diagram of a software working bench according to a second embodiment of the present invention, which is an example implemented by a computer.

FIG. 3 is a configuration diagram of a working bench of a conventional computer for an automatic pilot device of an aircraft.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Data input part 2 Data conversion part 10 Condition setting part 11 Display part 12 Computer 13 Keyboard 14 Screen 15 Memory 20 Software working bench 60 AFCS computer 63 Control law program

Continued on the front page (72) Inventor Yoshihiro Hatta 10 Oecho, Minato-ku, Nagoya City Mitsubishi Heavy Industries, Ltd. Nagoya Aerospace Systems Works (72) Inventor Toru Kojima 10 Oecho, Minato-ku, Nagoya City Mitsubishi Heavy Industries, Ltd. Nagoya Aerospace Systems Works F-term (reference) 5B042 GB05 HH11 HH25 MC01 NN01

Claims (2)

[Claims] 1. A software working bench for verifying the function of a control law software of a flight control computer mounted on an aircraft, comprising: a condition setting unit for setting input condition data of the software and executing the software; A display unit for displaying a result calculated by software, wherein the condition setting unit is capable of inputting the input condition data to the software and displaying the calculation result executed by the software on the display unit. And a software working bench, wherein when a required portion of each program unit or each step of the software is designated, the software working bench can be displayed on the display unit. 2. A computer having a memory for storing control law software of a flight control computer mounted on an aircraft and executing the control law software; an input device for inputting input condition data to the computer; And a display device for displaying a calculation result executed by the software.The computer can input the input condition data to the software and display the calculation result executed by the software on the display device. And a software working bench, wherein when a program unit of the software or a necessary part of each step is designated, the software working bench can be displayed on the display device.