JPH06208779A - Automatic tester for load/unload life of medium - Google Patents

Abstract

PURPOSE:To obtain an automatic tester of load/unload life of a medium in which estimation test (life test) for a floppy disc drive(FDD) is automated and highly accurate test result data is obtained. CONSTITUTION:The automatic tester comprises a base 5 for fixing an FDD6, a medium load/unload mechanism section 10, and a control section CNT, wherein the medium load/unload mechanism section is provided with a medium loading arm 8, a medium unloading arm 9, a motor 24, etc. A medium 1 is loaded/ unloaded automatically and alternately by moving the loading and unloading arms 8, 9 alternately thus performing medium load/unload life test automatically. Furthermore, the tester is provided with a volume for varying the loading/ unloading speed while the control section CNT is provided with a speed controller 25 and the speed and interval of loading/unloading the medium by means of the loading and unloading arms 8, 9 are varied by regulating the volume.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floppy disk drive (FDD) and the effect on the floppy disk drive by repeatedly inserting and removing the floppy disk (storage medium). , Automatic medium insertion / extraction life tester that can be automatically investigated.

[0002]

2. Description of the Related Art FIG. 10 is an explanatory view of a conventional floppy disk device (FDD) when a medium is inserted and removed.
In 0, 1 is a floppy disk (medium), and 2 is a head.

Conventionally, a floppy disk device (FDD)
Then, floppy disk (flexible disk
Cartridge 1 was used by inserting and removing. When writing / reading data to / from a floppy disk (hereinafter, simply referred to as “medium”) 1, a magnetic surface of the medium 1 and a head (read / write head) 2
Was in direct contact with.

Therefore, normally, the head 2 is opened at a position away from the position of the magnetic surface of the medium 1, and when the medium 1 is inserted into a floppy disk device (FDD), the head 2 is moved to the position of the medium 1. It was configured to come into contact with the magnetic surface.

In the floppy disk device having such a structure, the head 2 abuts against the magnetic surface and contacts each time the medium 1 is repeatedly inserted and removed. Therefore, when the medium 1 is inserted / removed, the magnetic surface of the medium 1 is scratched, causing an increase in torque for rotating the medium and a decrease in output voltage of stored data.

Further, if the shape of the head 2 is changed or the magnetic material composition is changed by a medium maker, the characteristics are significantly changed. Therefore, the floppy disk device (FD
When D) is newly developed, when a part of the structure of the floppy disk device is changed, or when the magnetic composition of the medium is changed, the influence on the floppy disk device and the medium is described. An evaluation test (life test) was performed.

This evaluation test was carried out by manually inserting / removing a medium into / from a floppy disk device (FDD).

[0008]

SUMMARY OF THE INVENTION The above-mentioned conventional devices have the following problems. : All evaluation tests (life tests) for floppy disk devices (FDD) were performed by manually inserting and removing the medium. Therefore, it takes time and labor, and
There are also many costs such as personnel costs.

Since the evaluation test (life test) is performed manually, unevenness occurs in the insertion / removal operation of the medium. Therefore, it is difficult to perform a highly accurate test, and the reliability of the data obtained as a result is low.

An object of the present invention is to solve such conventional problems, automate an evaluation test (life test) for a floppy disk device (FDD), and obtain highly accurate test result data. And

[0011]

FIG. 1 is a diagram for explaining the principle of the present invention. In FIG. 1, the same parts as those in FIG. 10 are designated by the same reference numerals.

[0012] Further, 5 is an FDD mounting fixed base, 6 is an FDD
(Floppy Disk Drive), 7 is an interface cable, 8 is a medium insertion arm, 9 is a medium ejection arm, 10 is a medium insertion / ejection mechanism section, 17 is an MPU (microprocessor), 19 is a target Insertion / removal number setting memory, 20 is a counter for accumulating the number of media in signal pulses, 23 is a sensor for detecting the number of medium insertion / removal, 24 is an electric motor, 25 is a speed variable controller, 26 is an AC power cutoff switch, and 28 is a return spring. , 33 are medium ejection buttons.

The present invention has the following structure to solve the above problems. : Drive device under test (FDD) capable of inserting / removing the medium 1
6) for mounting the mounting fixed base 5 and the drive device 6 under test mounted on the mounting fixed base 5 to the medium 1
The medium insertion / ejection mechanism section 10 for inserting and ejecting the medium and the control section CNT for performing various controls at the time of testing are provided, and the medium insertion / ejection mechanism section 10 inserts the medium 1 into the medium. Inserting arm 8, medium ejecting arm 9 for ejecting medium 1, drive mechanism for driving each of these arms 8, and electric motor 2 as a drive source of the drive mechanism
4 is provided and the medium inserting arm 8 and the medium ejecting arm 9 are alternately moved by the rotation of the electric motor 24, and the inserting operation and the ejecting operation of the medium 1 are automatically and alternately repeated. By doing so, a medium insertion / ejection life automatic tester capable of automatically carrying out the medium insertion / ejection life test was obtained.

In the automatic medium insertion / extraction life testing machine having the above construction, a medium insertion / extraction speed variable volume for varying the medium insertion / extraction speed is provided outside the automatic medium insertion / extraction life testing machine, and the medium insertion / extraction is performed in the control unit CNT. A speed variable controller 25 that changes the rotation speed of the electric motor 24 according to the value set by the speed variable volume is provided, and the medium insertion arm 8 and the medium ejection arm 9 are adjusted by adjusting the medium insertion / extraction speed variable volume. The media insertion / extraction speed and the insertion / extraction interval are variable.

In the automatic medium insertion / ejection life tester having the configuration or the above, the medium insertion / ejection mechanism section 10 is provided with a medium insertion / extraction number detecting sensor 23 for detecting the number of times of medium insertion / ejection, and the control section CNT is provided with various types of media. A data input device for inputting data is connected, a target insertion / extraction number setting memory 19 for setting the target insertion / extraction number input from the data input device to the control unit CNT, and a medium insertion / extraction number detection sensor 2
Counter 22 for accumulating the number of times of inserting / removing the medium detected in 3 and a switch for opening / closing the power supply circuit to turn on / off the operation of the tester (switch for cutting off AC power supply)
26 is provided, and at the time of the test, in the control unit CNT,
The cumulative target insertion / removal count accumulated in the medium insertion / removal count accumulation counter 22 is compared with the target insertion / removal count set in the target insertion / removal count setting memory 19, and the cumulative target insertion / removal count exceeds the target insertion / removal count. If the above switch 2
By controlling 6 to cut off the power supply circuit, the operation of the testing machine can be automatically stopped.

In the automatic medium insertion / ejection life tester having the structure or the above, a data input device for inputting various data is connected to the control unit CNT, and a drive device under test (FDD6) mounted on the mounting fixing base 5 is connected. Via the interface cable 7, and the control unit CNT controls the drive device under test (FDD6) connected by the interface cable 7 based on the selection signal input from the data input device to determine the motor of the interface signal. By setting the ON / OFF setting level (H / L), the medium rotation motor built in the drive device under test is set ON / OFF, and the medium insertion / extraction life test can be automatically performed. .

An alarm indicator is provided at a position facing the outside of the automatic medium insertion / ejection life testing machine in the automatic medium insertion / ejection life testing machine of the configuration or, and the number of times the medium is inserted / removed in / from the medium insertion / ejection mechanism section 10 is set. A drive device under test (FDD6) mounted on the mounting and fixing base 5 is provided with a sensor 23 for detecting the number of times of inserting / removing the medium, and the control unit CNT can be connected to the control unit CNT by an interface cable 7. The CNT is detected by a medium insertion / removal number accumulation counter 22 for accumulating the number of times of medium insertion / removal detected by the medium insertion / removal number detection sensor 23, and a medium in detection sensor in the drive device under test connected by the interface cable 7. Counter 20 for accumulating the number of media in signal pulses for accumulating the generated media in signal pulses
And a counter 2 for accumulating the number of times of inserting and removing the medium at the time of the test.
The cumulative value of 2 and the cumulative value of the counter 20 for accumulating the number of media-in signals are compared, and if they are different from each other, the abnormality of the sensor for detecting the media-in is output by the alarm indicator on the alarm output. It is configured to be displayable.

[0018]

The operation of the present invention based on the above configuration will be described with reference to FIG. (A): In the above configuration, when the electric motor 24 is rotated, the medium insertion arm 8 and the medium ejection arm 9 are
Alternately move, and the inserting operation and the ejecting operation of the medium 1 are automatically and alternately repeated.

In this case, by varying the insertion speed of the medium 1, it is possible to quantitatively evaluate the difference between the case where the medium is strongly inserted and the case where the medium is gently inserted. Also, by changing the insertion interval of the medium, the FD
It is possible to make an evaluation that matches the characteristics of D6.

(B): According to the above configuration, the number of times of inserting / removing the medium 1 is arbitrarily set from an external data input device,
When the set number of insertions / removals is reached, the test can be performed by automatically stopping the operation of the medium insertion / extraction life automatic tester.

As described above, when it is desired to perform a test until a certain life, the number of times of inserting / removing the medium 1 to be tested is set from the outside in advance.
The tester operation stops automatically.

Therefore, since the test is automatically performed without requiring any manpower and the test is automatically stopped, it is possible to operate overnight. (C): According to the above structure, ON / OF of the medium rotation motor in the FDD 6 can be selected and the test can be performed.

In FDD6, when the medium is rotating,
The influence on the magnetic surface and the head is different between the case where the head comes into contact and the case where the head comes into contact when the medium is stopped (both cases are considered for user use).

Therefore, the test can be carried out under each of the above-mentioned use conditions. (D): In the FDD 6, when the medium 1 is repeatedly inserted and removed, not only the influence on the magnetic surface and the head but also the mechanical sensor (sensor for detecting that the medium is inserted in the FDD) is turned ON / OFF. The operation is repeated and the life is shortened.

Therefore, by using the above configuration, it is possible to detect an abnormality in the FDD built-in sensor. As described above, according to the testing machine of the present invention, the floppy disk device (FDD)
It is possible to automate the evaluation test (life test) and obtain highly accurate test result data.

[0026]

Embodiments of the present invention will be described below with reference to the drawings. 2 to 9 are views showing an embodiment of the present invention. In FIGS. 2 to 9, the same parts as those in FIGS. 1 and 10 are designated by the same reference numerals.

Further, 11 is a counter display section (display section of a medium insertion / removal number accumulation counter), and 12 is a tester ON / OF.
F switch, 13 is a medium insertion / extraction speed variable volume, 14
Is a counter display section (display section of a counter for accumulating the number of media-in signal pulses), 16 is a sensor for detecting media-in, 18 is a data input device (keyboard, etc.), 21 is an LED (light emitting diode) for displaying an alarm (ALM) output , 26 is a switch for cutting off the AC power supply, 29 is a shaft, 30 is a rotating shaft, 31 is a medium inserting cam, 32 is a medium ejecting cam, 34 is a long groove, 35 is a rotating portion, and 36 is an actuator.

This embodiment is an example applied to a floppy disk device (FDD) using a cartridge type (3.5 inch type) medium (flexible disk cartridge), which will be described in detail below.

§1: Description of medium insertion / extraction life automatic tester ...
・ See Fig. 2 Fig. 2 shows a perspective view (outside view) of the automatic media insertion / extraction life testing machine. The medium insertion / extraction life automatic tester 4 shown in FIG. 2 tests the FDD and the life of the medium by inserting / removing the medium into / from a floppy disk device (hereinafter, simply referred to as “FDD”). .

Description of Whole Medium Insertion / Extraction Life Automatic Tester This medium insertion / extraction life automatic tester 4 is provided with an FDD mounting / fixing base 5 and a medium insertion / ejection mechanism section 10, and a counter on the front operation panel. Display unit 11, tester ON /
OFF switch 12, medium insertion / extraction speed variable volume 1
3, counter display unit 14, alarm output display LED
(Light emitting diode) etc. are provided.

Further, a control unit (which will be described later), a power supply unit, etc. are provided inside the medium insertion / extraction life automatic testing machine 4, and an external data input device (keyboard, etc.) is provided in the control unit.
Are configured so that they can be connected. The function of each part is as follows.

Description of Functions of Each Part (a): The FDD mounting and fixing base 5 is an FD which is the device under test.
FD for positioning and mounting D6
It is configured so that D6 can be placed and the position can be fixed by moving it in the vertical and horizontal directions.

(B): In the medium insertion / ejection mechanism section 10,
A medium inserting arm 8 for performing a medium inserting operation and a medium ejecting arm 9 for performing a medium ejecting operation are provided, and each of these arms alternately performs a medium inserting operation and a medium ejecting operation. .

The medium insertion / ejection mechanism section 10 is also provided with an electric motor and the like, and is configured to drive each of the above arms. (C): The counter display unit 11 displays a counter value of a counter for accumulating the number of medium insertion / ejection times (described later) in the control unit.

(D): The counter display unit 14 displays the counter value of a media-in signal pulse number accumulation counter (described later) in the control unit. (E): The medium insertion / extraction speed variable volume 13 sets a speed value to a speed variable controller (described later) in the control section by an external operation.

[Explanation at the time of test] When a test is performed using this medium insertion / extraction life automatic testing machine 4, the FDD (main body) 6 is attached to the FDD mounting / fixing base 5, and the FDD 6 and the medium insertion / extraction life automatic An interface cable 7 is connected to the tester 4.

Then, the FDD 6 and the control section are connected via the interface cable 7. In addition, the medium insertion / ejection mechanism section 10 includes a medium insertion arm 8
And a medium ejecting arm 9 is provided, and the medium inserting operation and the medium ejecting operation are alternately performed by these respective arms.

Therefore, the medium insertion port of the FDD 6 is arranged at a position facing the medium insertion arm 8 and the medium ejection arm 9. Then, the FDD mounting / fixing base 5 is adjusted by the medium inserting arm 8 and the medium ejecting arm 9 so that the medium inserting / ejecting operation can be properly performed.
Position 6.

§2: Description of the control unit of the automatic medium insertion / extraction life testing machine and each part connected to the control unit ... See FIG. 3. FIG. 3 is a block diagram of the control unit of the automatic medium insertion / ejection life testing machine. Show.

Description of Configuration of Control Unit As shown in FIG. 3, the control unit includes an MPU (microprocessor) 17, a target insertion / removal count setting memory 19, a media-in signal pulse count accumulation counter 20, and a medium insertion / removal. Counter 22 for accumulating the number of times, variable speed controller 25,
An AC power supply cutoff switch 26 and the like are provided.

Description of each unit connected to the control unit The control unit includes a data input device (keyboard, etc.) 1
8. Alarm output LED (light emitting diode) 2
1, a medium insertion / extraction count detection sensor (for example, a photo interrupter) 23, and the like are connected, and an FDD 6 is connected via an interface cable 7.

In this case, the data input device (keyboard, etc.) 18 may be provided in a part of the medium insertion / extraction life automatic test device 4 (a part of the main body). It may be provided separately from the main body and connected by a cable.

A sensor (for example, a photo interrupter) 23 for detecting the number of times of inserting / removing the medium is provided in a part of the medium insertion / ejection mechanism section 10, and an LED 21 for displaying an alarm output is provided.
Is installed in a part of the medium insertion / extraction life automatic testing device 4 (a place visible from the outside).

Further, the speed variable controller 25 is connected to an electric motor 24 for driving the medium inserting arm 8 and the medium ejecting arm 9. The above F
The DD 6 is provided with a media-in detection sensor 16, and a media-in signal (pulse) detected by this sensor is provided.
Can be read into the control unit via the interface cable 7.

Description of Each Part (a): The MPU 17 is a processor that performs various controls of the medium insertion / extraction life automatic testing machine, and performs various controls of the control unit.

(B): The data input device 18 is a medium insertion / extraction life tester main body or a device provided outside thereof, for inputting data and issuing instructions during the medium insertion / extraction life test. is there.

(C): Target insertion / removal count setting memory 19
Is a memory for storing the setting data of the target insertion / removal frequency during the medium insertion / removal life test, which is set by inputting the setting data from the data input device 18.

(D): The counter 20 for accumulating the number of times of the media-in signal pulse has the media-in signal pulse (FD) read from the sensor 16 for detecting the media-in in the FDD 6.
It is a counter for accumulating the number of pulses of the detection signal in the state where the medium is inserted in D).

(E): Alarm output display LED 21
Is a light emitting diode for outputting an alarm signal to the outside. (F): The medium insertion / removal number accumulation counter 22 is a medium insertion / removal number detection sensor (for example, a photo interrupter) 23.
This is a counter for accumulating the number of times of medium insertion / removal detected in.

(G): A medium insertion / ejection number detecting sensor (for example, a photo interrupter) 23 is a sensor provided in a part of the medium insertion / ejection mechanism section 10, and is a medium insertion arm 8
Alternatively, the movement of the medium ejecting arm 9 is detected to detect the insertion / removal operation of the medium.

(H): The electric motor 24 is a motor driven by the supply of electric power from a commercial AC power source, and the electric motor 24 causes the medium inserting arm 8 and
The medium ejection arm 9 is driven.

(I): The speed variable controller 25 is a controller for changing the speed of the electric motor 24. (J): The AC power supply cutoff switch 26 is a switch (for example, a magnet switch) that cuts off the AC power supply supplied to the electric motor 24 in response to a control signal from the MPU 17.

§3: Description of medium insertion / ejection mechanism section ...
See FIGS. 4 and 5. Configuration diagrams of the medium insertion / ejection mechanism section are shown in FIG. 4 (position when the medium is inserted) and FIG. 5 (position when the medium is ejected).

Description of Configuration of Medium Insertion / Ejection Mechanism Section 10 The medium insertion / ejection mechanism section 10 includes a medium insertion arm 8, a medium ejection arm 9, a return spring 28, a shaft 29, a rotary shaft 30, and a medium insertion. Cam 31, medium ejection cam 32,
The actuator 36 and the electric motor 24 are included.

(A): A button pressing portion 9A is provided at the tip of the medium ejecting arm 9, and the medium ejecting button 3 provided on the FDD 6 is provided by this button pressing portion 9A.
3 is pressed to eject the medium in the FDD 6.

(B): The medium inserting arm 8 and the medium ejecting arm 9 are provided with return springs 28. The return springs 28 are used by the medium inserting arm 8 and the medium ejecting arm 9. In contrast, it gives a one-way restoring force.

(C): An actuator 36 is coupled to the rotary shaft 30 coupled to the electric motor 24, and the actuator 36 is configured to be rotatable about the rotary shaft 30.

Then, at one end of the actuator 36,
A medium ejecting cam 32 is provided, and the rotating portion 3 is provided at the other end.
The shaft 29 is coupled via 5. Further, on the shaft 29 (on the side opposite to the rotating portion), the medium insertion cam 3
1 is provided.

(D): The medium inserting cam 31 is inserted in the long groove 34 provided in the medium inserting arm 8 and moves linearly in the long groove 34 as the actuator 35 rotates, and the medium is inserted. The insertion arm 8 is moved.

(E): The medium ejecting cam 32 has the rotating shaft 3
It rotates about 0 in the direction of the arrow in the figure, and the side surface of the medium discharging arm 9 is pushed and moved by this medium discharging cam 32.

Description of operation when medium is inserted ... See FIG. 4. When the tester ON / OFF switch 12 is turned on and the electric motor 24 is rotated, the rotary shaft 30 is rotated, and the actuator 35 is also illustrated. Rotate in the direction of the arrow. The rotary movement of the actuator 35 also moves the shaft 29.

When the medium insertion cam 31 moves toward the FDD 6 side due to the movement of the shaft 29, the medium insertion cam 31 moves the medium insertion arm 8 to the FDD 6.
Push to 6 side. By this operation, the medium 1 is pushed into the FDD 6 by the tip of the medium inserting arm 8.

At this time, the medium ejecting cam 32 has the FDD 6
Then, the medium ejecting arm 9 is pulled by the return spring 28 and returns to the return position. In this state, the button pressing portion 9A of the medium ejecting arm 9 has the FDD
6 is released from the medium eject button 33.

Description of Operation During Ejection of Medium--See FIG. 5 From the position when the medium is inserted, the actuator 36 further rotates, and the rotary unit 35 rotates the FDD with respect to the rotary shaft 30.
6, when the cam 32 for ejecting the medium comes to the FDD6,
It will rotate to the side.

In this state, the medium ejecting cam 32 pushes the medium ejecting arm 9 toward the FDD 6, and the button pressing portion 9A pushes the medium ejecting button 33 of the FDD 6 to eject the medium 1.

Simultaneously with the above operation, the medium inserting cam 31 moves away from the FDD 6, so that the medium inserting arm 8 is pulled by the returning spring 28 and returns to the returning position.

§4: Explanation of medium insertion / extraction life automatic test function The functions of the medium insertion / extraction life automatic test by the medium insertion / extraction life automatic tester are as follows.

The test is carried out by automatically repeating the insertion / extraction of the medium 1 and changing the insertion / extraction speed of the medium 1. With this test function, by varying the insertion speed of the medium 1, it is possible to quantitatively evaluate the difference between the case where the medium is strongly inserted and the case where the medium is gently inserted.

By varying the medium insertion interval, it is possible to evaluate the characteristics of the FDD 6. In this case, when the FDD that takes time from the insertion of the medium to the start of rotation of the medium is evaluated, if the medium insertion / removal interval is too early, the medium 1 will be ejected before the medium rotates. There is a thing.

In such a situation, the test may be different from the actual one. Therefore, the medium inserting arm 8 and the medium ejecting arm 9 are operated by the electric motor 24, and the medium inserting and ejecting operations are alternately performed to automatically perform the life test.

A test is carried out by externally setting the number of times of inserting / removing the medium 1 and, when the set number of times of inserting / removing is reached, automatically stopping the operation of the medium inserting / extracting life automatic tester.

When it is desired to carry out a test until a certain life, the number of times of inserting / removing the medium 1 to be tested is set in advance from the outside, and after the insertion / removal has been executed a set number of times, the operation of the testing machine automatically stops. .

Therefore, no labor is required, the test is automatically carried out, and the test is automatically stopped, so that it is possible to operate overnight. : Select ON / OFF of the medium rotation motor in the FDD 6 and carry out the test.

The influence on the magnetic surface and the head is different depending on whether the head is in contact when the medium is rotating, or when the head is in contact when the medium is stopped. There are cases).

Therefore, the test under each of the above-mentioned use conditions can be carried out. : Conduct a test to detect an abnormality of the sensor in the FDD 6. When the medium is repeatedly inserted and removed, not only the influence on the magnetic surface and the head but also the mechanical sensor built in the FDD (a sensor that detects that the medium is inserted in the FDD) is turned on / on.
The OFF operation is repeated and the life is shortened.

In this example, an abnormality in the FDD built-in sensor can also be detected. §5: Description of automatic test function of medium insertion / removal life ... See Fig. 6 When performing the test by the above function, the medium insertion / removal speed and the medium insertion / ejection interval are varied to perform the test.

In this case, in order to change the medium loading / unloading speed and the medium loading / unloading interval, the medium loading / unloading speed variable volume 13 is manually changed. By doing so, the speed variable controller 25 controls the rotation speed of the electric motor 24 according to the value set by the medium insertion / extraction speed variable volume 13, and changes the rotation speed of the electric motor 24.
As a result, the medium loading / unloading speed and the medium loading / unloading interval can be changed.

As shown in FIG. 6, "operation period of medium inserting arm 8" + "arm operation stop period" + "operation period of medium ejecting arm 9" + "arm operation stop period" = 1
It is a cycle.

Therefore, if the rotation speed of the electric motor 24 is changed, the length of the one cycle can be changed, and as a result, the medium insertion speed and the medium insertion interval can be changed. §6: Processing explanation of automatic insertion / withdrawal life test function ... See FIG. 7 FIG. 7 shows a processing flowchart at the time of automatic stop operation. Hereinafter, the processing at the time of the test by the medium insertion / extraction life automatic test function will be described based on the processing flowchart of FIG. 7. Note that S1 to S6 indicate respective process numbers.

In the processing at the time of this test, first, the target medium insertion / removal number (K) is input from the data input device 18 such as a keyboard. Input data (number of media insertion / removal)
Is set by the MPU 17 to the target insertion / removal count setting memory 19
(S1).

Next, the electric motor is rotated to start the test (S2), and the medium 1 is alternately inserted and removed by the medium inserting arm 8 and the medium ejecting arm 9. At this time,
The medium insertion / removal number detection sensor 23 detects the medium insertion / ejection operation (S3). Then, the MPU 17 takes in the detection data of the medium insertion / removal number detection sensor 23 and causes the medium insertion / removal number cumulative counter 22 to count up.

That is, the counter 2 for accumulating the number of times of inserting and removing the medium
The number N of medium insertions and removals is accumulated in 2 (S4). MPU1
In 7, the counter value (N) of the cumulative medium insertion / removal count counter 22 thus accumulated is compared with the target insertion / removal count (K) set in the target insertion / removal count setting memory 19 (S5). .

As a result, if K> N, the process is repeated from S3, but if K ≦ N, the MPU 17
Shuts off the AC power shutoff switch 26 to stop the rotation of the electric motor 24.

As a result, the test is automatically terminated (S6). §7: Process description of medium insertion / extraction life automatic test function ... See FIG. 8 FIG. 8 shows a process flowchart at the time of ON / OFF operation of the medium rotation motor. Hereinafter, the processing at the time of the test by the medium insertion / extraction life automatic test function will be described based on the processing flowchart of FIG. 7. Note that S11 to S16 represent respective process numbers.

The process for conducting a test by selecting ON / OFF of the medium rotation motor (motor with built-in FDD) in the FDD 6 is as follows. First, from the data input device (keyboard, etc.) 18, turn on / off the FDD built-in motor.
F is selected (S11).

When the motor ON is selected in the above selection, the MPU 17 sets the level of the motor ON / OFF signal in the FDD interface signal to the high level "H".
To the FD via the interface cable 7.
It is sent to D6 (S12).

As a result, the FDD built-in motor starts rotating (S13). Then, the insertion / removal operation of the medium is started (S16). In this case, the test is performed in the rotation state (ON state) of the FDD built-in motor.

When the motor OFF is selected in the above selection, the MPU 17 sets the level of the motor ON / OFF signal in the FDD interface signal to the low level “L”, and the interface cable 7 is used. And sends it to the FDD 6 (S12).

As a result, the FDD built-in motor stops rotating (OFF state) (S13). After that, the insertion / removal operation of the medium is started (S16), and the test is performed. That is,
The test is performed with the FDD built-in motor stopped rotating.

§8: Process description of medium insertion / extraction life automatic test ... See FIG. 9 FIG. 9 shows a process flowchart at the time of the abnormality detection operation of the FDD built-in sensor (media-in signal). Hereinafter, the processing at the time of the test by the medium insertion / extraction life automatic test function will be described based on the processing flowchart of FIG. Note that S21 to S
27 indicates each processing number.

Media-in detection sensor 1 with built-in FDD
The test for detecting abnormality 6 is performed as follows.
First, the medium insertion / ejection operation is started (S21). With the start of this operation, the medium insertion / removal number detection sensor 23 detects the medium insertion / removal number (S23), and the MPU 17 acquires the detection signal of the medium insertion / removal number detection sensor 23 to accumulate the medium insertion / ejection number counter 22. Are accumulated (cumulative value of medium insertion / removal = N) (S24).

At this time, the media-in detection sensor 16 in the FDD 6 detects the media-in signal (S22). Then, the MPU 17 takes in the media-in signal, and accumulates the number of media-in signal pulses (the number of detection pulses) in the counter 20 for accumulating the number of media-in signal pulses (the number of accumulated media-in signal pulses = P) (S23). ).

Then, the medium insertion / removal number cumulative value N and the media in signal pulse cumulative number P are compared (S).
25). As a result, if N = P, the above S23 and S
22 is repeated, but if N = P, MP
U17 lights the alarm output display LED 21,
An alarm is sent to the outside (S26).

Subsequently, the MPU 17 turns off the AC power source cutoff switch 26, turns off the motor power source, and stops the operation of the tester (S27).

[0095]

As described above, the present invention has the following effects. : The insertion / extraction of the medium can be automatically repeated and the test can be performed by changing the insertion / extraction speed of the medium.

By varying the insertion speed of the medium, it is possible to quantitatively evaluate the difference between the case where the medium is strongly inserted and the case where the medium is gently inserted. In addition, by changing the insertion interval of the medium, it is possible to perform an evaluation that matches the characteristics of the FDD 6.

The number of times of inserting / removing the medium can be arbitrarily set from the outside, and when the set number of times of insertion / removal is reached, the operation of the medium insertion / extraction life automatic testing machine can be automatically stopped. Therefore, at the time of the test, almost no manpower is required, and the test is automatically performed and automatically stopped, so that it is possible to operate overnight.

The effect on the magnetic surface and the head is different depending on whether the head is in contact with the medium while it is rotating or when the head is in contact with the medium when it is stopped. It is possible).

In such a case, according to the present invention, from the outside,
Since the test can be performed by selecting ON / OFF of the medium rotation motor in the FDD 6, the test can be performed under each of the above-mentioned use conditions.

When the medium is repeatedly inserted / removed, not only the effect on the magnetic surface and the head but also the ON / OFF operation of the mechanical sensor (sensor for detecting that the medium has been inserted into the FDD) is repeated. , The life is shortened.

Therefore, in the present invention, the abnormality of the sensor inside the FDD 6 can also be detected by carrying out the test for detecting the abnormality of the sensor inside the FDD 6. : As mentioned above, a floppy disk device (FDD)
It is possible to automate the evaluation test (life test) for, and by the automation of the test, highly accurate test result data can be obtained.

[Brief description of drawings]

FIG. 1 is a diagram illustrating the principle of the present invention.

FIG. 2 is a perspective view of a medium insertion / extraction life automatic testing machine.

FIG. 3 is a block diagram of a control unit of the medium insertion / extraction life automatic testing machine.

FIG. 4 is a configuration diagram of a medium insertion / ejection mechanism portion (position at the time of medium insertion).

FIG. 5 is a configuration diagram of a medium insertion / ejection mechanism section (position at the time of medium ejection).

FIG. 6 is an explanatory diagram of a medium insertion / ejection operation.

FIG. 7 is a processing flowchart at the time of automatic stop operation.

FIG. 8 is a processing flowchart at the time of ON / OFF operation of the medium rotation motor.

FIG. 9 is a processing flowchart at the time of an abnormality detection operation of the FDD built-in sensor.

FIG. 10 is an explanatory diagram when inserting / removing a medium in the FDD.

[Explanation of symbols]

 1 Medium (Floppy Disk) 5 FDD Mounting Fixture 6 FDD (Floppy Disk Device) 7 Interface Cable 8 Media Inserting Arm 9 Media Ejecting Arm 10 Media Inserting / Ejecting Mechanism 17 MPU (Microprocessor) 19 Target Insertion / Extraction Frequency Setting Memory 20 Counter for accumulating the number of media in signal pulses 23 Sensor for detecting the number of times of inserting / removing medium 24 Electric motor 25 Variable speed controller 26 Switch for shutting off AC power supply 28 Return spring 33 Medium ejection button

Claims (5)

[Claims] 1. An attachment fixing base (5) for attaching a drive device under test (6) capable of inserting and removing a medium (1), and a drive device under test (6) attached to the attachment fixing base (5). A medium insertion / ejection mechanism section (10) for inserting and ejecting the medium (1) and a control section (CNT) for performing various controls at the time of testing are provided for the medium insertion / ejection mechanism. The section (10) includes a medium insertion arm (8) for inserting the medium (1), a medium ejection arm (9) for ejecting the medium (1), and each of these arms (8, 9). Drive mechanism (3
1, 32, 29, 36, etc.) and an electric motor (24) that is a drive source of the drive mechanism, and by rotating the electric motor (24), the medium insertion arm (8) and the medium ejection arm are provided. By alternately moving the arm (9), the insertion operation and the ejection operation of the medium (1) are automatically performed.
The automatic media insertion / extraction life tester is characterized in that the media insertion / extraction life test can be automatically carried out by repeating alternately. 2. Outside the medium insertion / extraction life automatic testing machine,
A medium insertion / extraction speed variable volume (13) for changing the medium insertion / extraction speed is provided, and the electric motor (24) is provided in the control unit (CNT) according to the value set by the medium insertion / extraction speed variable volume (13).
A speed variable controller (25) for changing the rotation speed of the medium is provided, and the medium insertion / extraction speed by the medium insertion arm (8) and the medium ejection arm (9) is adjusted by adjusting the medium insertion / extraction speed variable volume (13). The medium insertion / extraction life automatic tester according to claim 1, wherein the insertion / ejection interval is variable. 3. The medium insertion / ejection mechanism section (10) comprises:
A sensor (23) for detecting the number of times of inserting and removing the medium is provided, a data input device (18) for inputting various data is connected to the control unit (CNT), and the control unit (CNT) is connected. A target insertion / removal count setting memory (19) for setting the target insertion / removal count input from the data input device (18) to the CNT, and a medium insertion / removal for accumulating the medium insertion / removal count detected by the medium insertion / removal count detection sensor (23). Counter for accumulating the number of times (22)
And a switch (26) for opening / closing the power supply circuit to turn on / off the operation of the tester, and during the test, accumulated in the medium insertion / ejection number accumulation counter (22) in the control section (CNT). The cumulative target number of insertions / removals is compared with the target number of insertions / removals set in the target insertion / removal number setting memory (19). If the cumulative target number of insertions / removals exceeds the target number of insertions / removals, the switch (26) 3. The automatic medium insertion / extraction life testing machine according to claim 1, wherein the operation of the testing machine can be automatically stopped by controlling the above, and cutting off the power supply circuit. 4. The control unit (CNT) is connected to a data input device (18) for inputting various kinds of data, and a drive device (6) to be tested attached to the attachment fixing base (5) is interfaced. The connection is made possible by the cable (7), and in the control unit (CNT), based on the selection signal input from the data input device (18) to the drive device under test (6) connected by the interface cable (7),
By setting the motor on / off setting level (H / L) in the interface signal, the medium rotation motor built in the drive device under test (6) is set on / off to perform the medium insertion / extraction life test. The automatic medium insertion / extraction life testing machine according to claim 1 or 2, characterized in that 5. An alarm indicator (21) is provided at a position facing the outside of the medium insertion / ejection life automatic testing machine, and the medium insertion / ejection mechanism section (10) is provided for detecting the number of times the medium is inserted / removed. A sensor (23) for detecting the number of times of medium insertion / removal is provided, and the drive device under test (6) mounted on the mounting fixture (5) can be connected to the control unit (CNT) by an interface cable (7). The control unit (CNT) has a counter (2) for accumulating the number of times of inserting and removing the medium, which accumulates the number of times of inserting and removing the medium detected by the sensor (23) for detecting the number of times of inserting and removing the medium.
2) and the sensor (1) for detecting the media-in in the drive device (6) under test connected by the interface cable (7).
A counter (20) for accumulating the number of pulses of the media-in signal that accumulates the media-in signal (pulse) detected in 6) is provided, and the accumulated value of the counter (22) for accumulating the number of times of inserting and removing the medium and the media-in The accumulated value of the signal pulse number accumulation counter (20) is compared, and when both are different, the abnormality of the media-in detection sensor (16) can be displayed on the alarm display (21) as an alarm output. The automatic medium insertion / extraction life testing machine according to claim 1 or 2, characterized in that.