JPS5846471A - Information retrieval device - Google Patents

Abstract

PURPOSE:To improve operability by giving a warning of erroneous operation once a frame or frame-group backward-movement key is pressed when a loading detector for a microfilm detects the film being unloaded. CONSTITUTION:Whether a microfilm is loaded or not is detected by a capstan switch 57 to output 0 when loaded or 1 when unloaded to an AND circuit 102. When a -1 frame key 15 or -1 subject key 22 is operated, the output 1 is supplied to an AND circuit 1 through an OR circuit 101. Consequently, when frame backward movement keys 15 and 22 are operated while no film is loaded, the AND circuit 102 outputs an erroneous operation signal SMISS to put a buzzer 97 in operation through a timer 103 and a TR104. Thus, operability is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an information retrieval device such as a reader printer that can perform frame retrieval for retrieving each information frame of a microfilm and item retrieval for retrieving a group of information objects for each winter crop.

For example, a negative or positive microfilm as shown in FIG. 1 is used in such an information retrieval device.

This microfilm 1 is connected to a starting end leader tape 1a that is secured to a take-up reel (not shown) and a trailing end leader tape 1b that is secured to a reel in the cartridge. There is a start mark (which becomes a reset mark when returning) Ms and an end mark ME -C.

A large number of information frames K, in which information is photographed and recorded at regular intervals, are arranged on the film 1 between the two marks, and a corresponding frame mark MK is attached to each information frame, and information for one item is recorded. An issue mark MO is attached corresponding to the first frame of the information object group KG (generally consisting of a plurality of frames, but one frame may contain information for one item).

Then, the information retrieval device detects the frame mark MK and the subject mark Me of this microfilm 1, and performs a frame search (search for each frame) and a case search (search for each group of information objects for one case).
It is now possible to do this.

By the way, in such an information retrieval device, when the microfilm is not fed into the device, the operation key that returns information frame 1 (one frame) or the operation key that returns information object group KG by one group (one item) is pressed. Even if the film is operated, the film cannot be returned and there is no point in returning the film, so it is an erroneous operation.

However, in conventional information retrieval devices of this type, even if an erroneous operation like the one described above is made, nothing happens, so the operator does not notice the erroneous operation and may think it is a malfunction. Sometimes I wasted my time.

This invention was made with attention to the above point, and if the operation key for returning the information piece or information object group is operated while the microfilm has not been fed into the device, a warning is issued. The purpose is to notify the operator by issuing a message.

Therefore, the information retrieval apparatus according to the present invention includes a film loading detection means that outputs a detection signal when microfilm is fed into the apparatus, and a film loading detection means that outputs a detection signal when the film loading detection means does not output a detection signal. Return operation key or information object group to lnJ'y! , erroneous operation detection 1 that outputs an erroneous operation signal when an operation key is operated
-1.
- achieves the stated objectives.

Hereinafter, the present invention will be described in detail with reference to FIG. 2 and subsequent figures of the accompanying drawings.

FIG. 2 shows the outer dimensions of the main body of the reader printer, which is an information retrieval device embodying the present invention, in which 2 is a screen, 6 is a film drive unit for searching microfilm, 4 is an operation pile, and 5 is a copy receiver. It is.

The operation panel 4 includes various switches, as shown in FIG.
Operation keys, dials, lamps, etc. are arranged.

7 is a power switch that turns on and off the entire machine; 8 is a print switch that performs the copy operation; 9 is a paper end lamp that lights up when the photosensitive paper runs out; and 10.11 is a copy switch. A size display lamp 12 indicates the size, a toner lamp 12 lights up when the toner runs out, and a solvent lamp 13 lights up when the solvent runs out.

14 is a 4-1 frame key for advancing one frame of microfilm, 15 is an 11-frame key for returning one frame, 16 is a search key for issuing a search command signal for searching by film number, and 17 is a A stop key 14 is used to stop the movement of the film and start the copying operation, and a clear key 18 is used to clear the number displayed on the number display 27.

19 is a numeric keypad used as a numeric keypad to be used when presetting a desired internal search number of the microcomputer, which will be described later; 21 is a rewind key for rewinding the film; and 22 is a +1 key for advancing the film by one item. The item key, 26 is the 4-item key for deleting one item, and 24 is the manual dial for manually forwarding and reversing the film.

25 is a copy density dial for adjusting the density of copies, 2
6 is a copy number dial for setting the number of copies (this dial does not work when copying items), 27 is a numeric display consisting of a 4-digit 7-segment L-ED, and 28 is a dial from piece search mode to item search mode ( 29 is the item search switch used when switching, 29 is the item copy switch, and when copying items, turn on this switch and press the print switch 8.
Turn on.

Next, referring to FIG. 4, a mechanism for projecting film and making copies by this reader printer will be explained.

The information frame of the microfilm 1 held on the film guide 61 by the pressure plate 62 is illuminated by light that passes through the condenser lens 65 from the lamp 64, passes through the projection lens 66, and is reflected by the first mirror 37. The image is projected from the second mirror 68 onto the screen 2. This is the state in which the normal microfilm 1 is inserted and is being projected.

Now, if the print switch 8 in FIG. 6 is pressed, the drive motor (not shown) of the photosensitive paper conveyance system starts to rotate, and at the same time the mirror clutch 41 is turned on, the mirror cam 42 rotates, and the second mirror 68 is turned on. Move to the position indicated by the imaginary line. After the movement, the mirror clutch 41 is turned off. During this time, the rolled photosensitive paper 40 is started, cut into a certain length by the cutter 46, charged by the charging section 44, and reaches the exposed surface 46-1- by the C1 vacuum belt 45.

Furthermore, when the print switch 8 is pressed, the lamp 34 that was irradiating the microfilm 1 at this point is turned off. When the photosensitive paper 40 reaches the exposure surface 46, the process is temporarily stopped and the lamp 64 is turned on again to perform static exposure.

When the exposure for a certain period of time is completed, the lamp 64 is turned off, and the photosensitive paper 40 moves 1'r1: toward the developing section 47. The photosensitive paper 40 that has entered the developing section 47 is developed with a developer, dried in a drying section 48, and then conveyed to the copy receiver 5.

Further, when the exposure is completed, the mirror clutch 41 is turned on, and the second mirror 68 also returns to its original position.

Note that 49 is a reflecting plate that reflects the light emitted by the lamp 34 toward the condenser lens 35.

Next, the film drive unit will be explained with reference to FIG.

A microfilm 1 is stored in a roll 51 within a cassette 50. Set the cassette 5o and press the search key 16. +1 piece key 14° +1 item key 22. By operating the feed direction of the manual dial 24, the solenoid 52 is turned on, the thread roller 56 moves toward the film surface, and at the same time, the drive motor 54 rotates.

The drive motor 54 rotates at low and medium speeds.

There are three speed levels. A detailed explanation of this speed will be given later.

In the above case, the film is fed at medium speed. The film 1 ejected from the cassette 5o by the thread roller 56 enters between the drive roller 55 and the press roller 56. When the film 1 is wedged between the rollers 55 and 56, a capstan switch (hereinafter referred to as "CAP switch") 57 serving as film loading detection means is turned on.

When the CAP switch 57 is turned on, the solenoid 52 is turned off, and the film feeding force is applied from the drive roller 55. Then, the film 1 passes through the film gate 58 and is wound onto the reel 59. 60 has a film presser arm.

Then, when the start mark is read by the mark detector described later, the search key is either medium to high speed (search key when searching for frames after the 20th frame) or low speed (+1 frame key, ÷1 item key, search within 19 frames). (search key when searching for pieces). Thereafter, when the mark detector detects a predetermined mark, the advance of the film 1 is stopped and the lamp 34 is turned on to project the stopped frame.

The mark detection section is constructed as shown in FIG. There is.

Then, the microfilm 1 is illuminated by the light of the lamp 34.
The piece mark MK and the piece mark Me are mirror 61.62
It is reflected by the lens 63 and 64, magnified (doubled) by the mirrors 65 and 66, and reaches the piece mark detector 67 and the piece mark detector 68. In addition, the information of piece I (
The image passes through the projection lens 36 and is projected onto the screen 2 in FIG.

As shown in FIG. 7, the piece mark detector 67 is
, A2. Ht, J'(2), and the mark detector 68 is equipped with a sensor A3, 143. Each sensor is specifically a photodiode.

The piece mark detector 67 doubles as a start mark detector and an end mark detector, and its sensor Al, 131 generates a piece mark signal for counting piece marks, and the sensors A2, 132 and At, 13t generate a start mark signal. , end mark signal, reset, and to mark signal (when the microfilm is fed in the return direction and the start mark is detected). Sensor A3 of the target mark detector 68. B
A also outputs a mark signal.

Note that the microfilm 1 shown in FIG. 1 is used.

FIG. 8 shows a film drive circuit and its input and output signals, and the microfilm 1 is controlled by the drive speed and feed direction of the drive motor 54 (Ml) in FIG. The on/off of the solenoid 52 is controlled and sent.

Table 1 shows the relationship between the input signal of the film drive circuit 70 and the film advancing direction and speed.

Each input signal in FIG. 8 of Table 1 and the above Table 1 is as follows. Note that the film was not fed under the conditions marked * in Table 1.

GO: High speed signal M1. l): Medium speed signal D
OWN: Low speed signal ItI'; W: Return signal MSTP
: Signal to stop the motor when using the manual dial CAP8W : CAI) The microfilm is fed into the device by the on/off signal of the switch 57, and the film is wedged between the drive roller 55 and press roller 56 in Fig. 5. It turns on when it is on.

MDS: A signal that changes the rotational speed of the motor 54 according to the position of the manual dial when it is moved.

On the other hand, the direction signal D8 in the output signal is "B" in the forward direction, and "O" in the return direction.
It becomes 1.

FIG. 9 shows the print control circuit.

11- When the print switch 8 shown in FIG. 6 is turned on by this print control circuit 80, the motor 81 (M2) for transporting the photosensitive paper is started, and the various parts shown in FIG. Go back and eject the copy of the information piece in the copy receiver 5 (2).

In addition, mirror clutch OFF signal, lamp ON signal,
The reprint signal is a signal that is input from the search control circuit shown in FIG. 10, which will be described later, at the time of copying. is input instead of being manipulated.

FIG. 10 is a diagram showing the relationship between the search control circuit and its input/output signals in this embodiment.

This search control circuit 90 includes a central processing unit (Ci) and a 1'L memory as a program memory.
A one-chip microcomputer with OM, RAM, etc. as data memory.

In the human power system, on/off signals 12- are input from each operation key or switch on the operation panel 4 shown in FIG. Note that the manual switch 91 is
This is a switch that is turned on when the manual dial 24 shown in FIG. 6 is rotated.

The ninth frame switch 92 is a switch inside the machine, and is a frame number selection switch that changes the film speed from high speed to low speed during retrieval. When the 9th frame switch 92 is off, the search control circuit 90 switches to low speed 19 frames before, and when it is on, it switches to low speed 9 frames before.

However, even if this "9 frames 1" switch 92 is off, when the item search switch 28 is on, it is switched before 9 frames.
Signals from both switches are inputted via an OR gate 96.

Further, from the film drive circuit 70 shown in FIG. 8, a direction signal DS indicating the feeding direction of the microfilm and an on/off signal of the CAP switch indicating whether or not the microfilm is fed into the apparatus and loaded are input. be done.

Furthermore, from the print control circuit 80 in FIG.
A paper stop signal PST, which is generated when the photosensitive paper reaches the exposed surface (second stop +L), and a print signal P, which is output when the print switch is turned on, are input.

However, the print signal P is set to the copy switch 29 so that only ζ2 is input when the copy switch 29 is on.
It is inputted via an AND gate 94 which performs an AND with the output of the .

In addition, sensors Al, Bl, A2. of the piece mark detector 67 shown in FIGS. 6 and 7. B2 and sensor A3 of the mark detector 68. The output signals of B3 are input to the mark preprocessing circuit 95 to discriminate each mark, and produce a start mark signal, an end mark signal, a reset mark signal (a start mark detection signal when the microfilm is sent in the return direction), A piece mark signal and a subject mark signal are output and input to the search control circuit 90.

The positive switch 96 is a switch that is turned on when the loaded microfilm is positive, and turned off when it is negative (secondary OFF).

As for the output system, as each film drive related output to the film drive circuit 70 in FIG.
, GO (high speed), DOWN (low speed).

REJ return) and M8TP (motor stop during manual operation) signals are output.

Also, a mirror clutch OIi''P signal and a lamp ON signal are sent to the print control circuit 80 in FIG.

Outputs a reprint signal.

If the operator makes an erroneous operation, the erroneous operation signal 5Ml8B is outputted and the buzzer 97 sounds to warn the operator.

In addition, in piece search mode, piece number data is output, and in case search mode, piece number data (counted value by a counter in RAM or set value by a numeric keypad) is output, and decoded by a decoder 98 into 7 segments). It is displayed on the digit number display 27. In this case, each digit of the numeric display 27 is sequentially and dynamically displayed by the switching signal Sc.

Next, during the operation of the search control circuit shown in FIG.
This will be explained with reference to the operation flowchart shown in the figure.

FIG. 11 shows an outline of the main routine, which starts from the start when the power switch 7 in FIG. 6 is turned on.

First, it is checked whether the item search switch 28 is on or not, and if it is No, it is the piece search mode, so the counter is operated as a piece counter.

Since YIDS is in the case search mode, the counter is operated as a case counter.

Next, check whether the numeric keypad 20 is on, and press Y.
If S, jumps to the number setting routine and inputs the number placed in the display register using the numeric keypad 20 using the preset key 1.
9 is turned on, the counter is preset.

If the numeric keypad 20 is not operated, then the +1 piece key 14. -1 piece key 15. +1 item key 22° -1 item key 2
6. Check the search keys 16 sequentially, and if any is operated and turned on, +1 to perform that process.
It advances to either the piece routine, the -1 piece routine, the +1 piece routine, the -i piece routine, or the sir 16-chill-chin, but the -1 piece routine and the heat
When proceeding to the one-item routine, the error check routine according to the present invention is passed through.

In addition, manual routine and rewind routine.

The copy routine and the like are omitted from illustration.

In the mistake check routine, as shown in FIG. 12, it is checked whether the CA, l) switch, which is the film loading detection means, is on.

If the CAP switch is on, it is normal, so the process returns to the main routine in Figure 11, proceeds to the -1 frame routine or -1 case routine, and performs the operation or information object group to move the information piece back one frame. Perform the action of returning one group.

If the CAP switch is not turned on (off), the microfilm has not been fed into the device, so it is determined that it is an erroneous operation, outputs the erroneous operation signal SM SS, and sets the internal timer to start. , the buzzer 97 (FIG. 10) is turned on to issue an erroneous operation warning until the timer times out.

When the timer expires, the buzzer 97 is turned off and the process returns to the start Φ of the main routine in FIG.

Note that the erroneous operation warning means is not limited to a buzzer, but may also be a visual warning means such as a lamp or two letters and one figure, or an audio warning means using a voice synthesizer or the like.

Next, another embodiment of the present invention will be described with reference to FIG. 13, in which the erroneous operation determination means is provided outside the search control circuit 9o using a microcomputer.

In this embodiment, the erroneous operation determination means 1oo is configured to output each operation of the -1 frame key 15 and the 11 key 20 (61 when operated).
an OR circuit 101 which takes the OR of the output of the OR circuit 101 and the on/off signal of the CAP switch 57 (when on, the output of the OR circuit 101 and the film loading detection means).
Therefore, when the -1 piece key 15 or the -1 item key 57 is operated, the output of the OR circuit 101 becomes
II, and if the CAP switch 57 is on at that time, its output is '0'', so the AND circuit 10
The output of 2 remains at "0", but when it is off, the output is 61', so the output of the AND circuit 102 becomes "1", which is output as the erroneous operation signal SMI 8B. .

As a result, the timer circuit 103 is triggered and the transistor 104 is turned on to keep the output at a low level for a certain period of time, operating the buzzer 97 to issue a warning.

Note that, as in the previous embodiment, something other than a buzzer can be used as the erroneous operation warning means.

As described above with respect to the embodiments, in the information retrieval device according to the present invention, when the microfilm is not fed into the device, the key to return the information frame by one frame or the key to return the information object group by one group is accidentally operated. If an error occurs, a warning will be issued for an erroneous operation, allowing the operator to immediately notice the error and redo the operation, thereby improving operability.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing an example of a microfilm used in an information retrieval device to which the present invention is applied. FIG. 2 is a perspective view showing the external appearance of the league printer main body which is an embodiment of the present invention, FIG. 3 is a plan view of the operation panel thereof, and FIG. 4 is a
Similarly, FIG. 5 is a block diagram showing the mechanism for projecting the film and making a copy, FIG. 5 is a block diagram of the film drive unit, FIG. 6 is a block diagram of the mark detection section, and FIG. An explanatory diagram showing the frame mark detector and the subject mark detector in FIG. 6 in correspondence with the frame mark and the subject mark on the microfilm; FIG. 8 is an explanatory diagram showing the relationship between the film drive circuit and its input/output signals; FIG. 9 is an explanatory diagram showing the relationship between the print control circuit and its output signal; FIG. 10 is an explanatory diagram showing the relationship between the search control circuit and its input/output signals; FIGS. 11 and 12 10 is an operation flow diagram for explaining the operation related to the present invention by the search control circuit of FIG. 10. FIG. 16 is a block circuit diagram showing another embodiment of the present invention. 1... Microfilm I (... Information piece MK.
... Pieces? -'y M a...Match mark Ms...Start mark ME...End mark 2...Screen 6...Film drive unit 4...Operation panel 5...Copy receiver 7...Power supply Switch 8...Print switch 14...10l frame key 15...-1 frame key 16.
...Search key 17...Stop key 18...
Clear key 19...Preset key 20...Numeric keypad 21...Rewind key 22...+1
Item key 26...-1 Item key 24...Manual dial 27...Numeric display 28... Item search switch 29... Item copy switch 57...CAP switch (film loading detection means) 67. ...Frame mark detector 68...Mark detector 70...Film drive circuit 80...Print control circuit 90...Search control circuit 97...Buzzer (misoperation warning means) 100...Misoperation detection Means 23- (N ri 1

Claims (1)

[Scope of Claims] 1. An information retrieval device that searches for a desired information piece or group of information objects on a microfilm by detecting a mark provided corresponding to an information frame or a group of information objects on the microfilm. , a film loading detection means that outputs a detection signal when the microfilm is fed into the apparatus, and an operation key or the information object group that returns the information frame by one frame when the film loading detection means does not output the detection signal. 1
An information retrieval device characterized by being provided with an erroneous operation discriminator that outputs an erroneous operation signal when a return operation key is operated, and an erroneous operation warning means that issues a warning when the erroneous operation discriminator outputs an erroneous operation signal.