JPS61197306A - Article retrieval system - Google Patents

Abstract

PURPOSE:To retrieve a desired article easily and quickly by synthesizing a data pulse and a clock pulse and outputting on retrieval parent device, and asynchronously separating data pulse to be taken out on retrieval daughter device side. CONSTITUTION:In a retrieval parent device 1, when an article number of a file 6 to be retrieved is input from a ten key 2, the number is displayed on a number display 3, and according to the display, a data pulse and a clock pulse are synthesized and output through an amplifier 4 and a high-frequency coil 5. On the other hand, when a retrieval daughter device 7 mounted on each file 6 in a storing rack 8 receives a synthesis signal, article number data of the parent device is separated and fetched from the synthesis signal, and if it matches a self-article number data, the data is displayed by LCD or the like. Further, when the data match, electric wave is separately output from the daughter device 7 and received on the parent device 1 side through a high- frequency coil 9 to light a retrieval display 10. Thus, a desired article can be retrieved easily and quickly.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an article search system for searching for a desired item from a plurality of articles (for example, files) stored in an article storage shelf (for example, a file storage shelf) or the like.

[Conventional technology and problems]

Conventional article searches, for example, in the case of file searches, have been carried out by recording a code number on the back of the file, or by pasting a label with the code number on it, which is visually recognized by humans. For this reason, the files had to be arranged on shelves so that the code numbers on the back could be easily recognized, and they had to be arranged, for example, in the order of the code numbers, so that they could be searched quickly.

Therefore, in the conventional method, as the number of files increases, a great deal of effort is required to organize the files, and in order to arrange the files in a way that is easy for humans to recognize and search, a special @ structure is required. There were inconveniences such as the need for shelves. Note that this situation is not limited to file searches, but also applies to searches for boxes such as cardboard boxes, cassettes, and stored items in warehouses.

[Purpose of the invention]

The present invention has been made to overcome the drawbacks of the prior art as described above, and allows for easily and quickly searching for desired items without the need for specially structured shelves for storing items such as files. The purpose is to provide an article retrieval system that allows users to search for items.

[Summary of the invention]

In order to achieve the above object, the present invention provides a search method in which the article number of the article to be searched is input, a data pulse and a clock pulse based on this parent article number data are synthesized, and this synthesized signal is output as a radio wave as a carrier wave. The parent item number data is separated and retrieved from the composite signal of data pulses and clock pulses attached to each item and carried by radio waves from the search equipment, and this is combined with the own item number data (child). The object of the present invention is to provide an article search system that includes a search slave device that compares the side article number data) and displays a message to that effect on an LCD or the like when they match. Furthermore, in the present invention, when the parent side and slave side article number data match each other on the search slave device, a separate radio wave is output from the search slave device, and this is received by the search parent device to display that the search has been performed. We also provide an article search system.

[Embodiments of the invention]

Hereinafter, some embodiments in which the present invention is applied to a file search system will be described with reference to the accompanying drawings. In addition, in the following description of the drawings, the same elements are indicated by the same reference numerals.

FIG. 1 is an external view of a system including a search device and a search child device according to an embodiment. The front surface of the search device 1 is provided with a 10 key 2 for inputting a file number, and a number display 3 for displaying the input file number as a 4-digit, 7-segment number. Further, a carrier wave power amplifier 4 is connected to the search device 1 . A first high frequency coil 5 connected to the carrier wave power amplifier 4 is attached to the inner wall of the file storage shelf 8. In addition, a second high-frequency coil 9 is attached to the inner wall of the file storage shelf 8.
When there is a high frequency input to this, a search display 10 provided on the front of the search device 1 emits light.

On the other hand, a search slave device 7 is provided on the back side of the file 6 stored in the file storage Ia8. The search device 7 is equipped with a coil for receiving clock pulses and data pulses, and is configured to receive and receive a composite signal sent from the search device 1 as an electromagnetic wave. It also has a separate coil that inputs high-frequency radio waves when it is searched. Is this search child device 7 each 7? One piece can be attached to each file 6.

FIG. 2 is a circuit diagram of the search device and carrier power amplifier shown in FIG. 1. 10 key 2 as a number input method
The parent side file number data inputted from the parent side file number data and the clock pulse outputted from the clock pulse generation circuit 11 are both inputted to the parallel in-serial out shift register 12. The shift register 12 inputs data in parallel and outputs the data serially in synchronization with clock pulses, and its output is a.

b is the NAND gate G1. G2 and inverter G3 as well as latch decoder driver 13. The latch decoder driver 13 is the display 3
is activated to display the file number entered using the 10 key 2.

NAND gate G1. The outputs c and d of G2 are the first
, to the second one-shot multivibrators 31 and 32, whose outputs e and f are N.

It is logically summed by R gate G4. The output of NOR gate G4 is inverted by inverter G5, and this inverted output Q is NAN
It is applied to one terminal of D gate G6. The other terminal of the NANO gate G6 is given a high frequency signal from the carrier wave oscillator 33, and the output of the NAND gate G6 is amplified by the carrier power amplifier 4 and sent to the first high frequency coil 5.
is output as radio waves.

The search device 1 also includes a second high-frequency coil 9 for receiving high-frequency radio waves transmitted from the search slave device 7, a high-frequency receiver 34, and a high-frequency reception display for indicating that the radio waves have been received, as described later. It is equipped with a container 35. Note that this reception display 35 is an LCD display and a light emitting diode (LE).
D), a buzzer, etc. FIG. 3 is a circuit diagram of the search slave device 7 shown in FIG. 1.

The radio waves emitted from the high frequency coil 5 shown in FIG.
is applied to one-shot multivibrator 39 and AND gate G7. One-shot pulse 1 from third one-shot 39 is applied to fourth one-shot multivibrator 40, and its output (one-shot pulse) m is applied to AND gate G7 and serial-in-parallel out shift register 73.

The number designation switch 76 is used to designate its own file number, and the designated number data (child side file number data) is sent to the exclusive OR (EXOR) gate G8. G9
and ANDNO gate G4. The determination circuit 77 uses the parent file number data given from the shift register 73 and the number designation switch 76h.
1 and the given child side file number data, and if they match, the RS flip-flop 78 is set. Note that the RS flip-flop 78 can be reset by operating a reset switch 79.

An LCD (liquid crystal display) decoder 80 is supplied with a signal for driving the LCD from an LCD bias oscillation circuit 81, and is also supplied with an output signal of an RS flip-flop 78. LCD decoder 80 is RS flip 70
When the knob 78 is set, the LCD 82 is operated. Note that power from the solar cell 83 is supplied to the above circuit.

On the other hand, the output of the RS flip-flop 78 is the electronic buzzer 2.
4. It is also applied to the power amplifier 42 that drives the take-out lever 27 and the ED 41. Therefore, the electronic buzzer 24 is R
A buzzer sound is generated when the S flip 7O knob 78 is set. Note that this electronic buzzer is also driven by power from the solar cell 83. Furthermore, RS flip 70
When the knob 78 is set, current is applied to the solenoid 27, and the take-out lever 28 projects in the direction of arrow y. Note that this take-out lever is also driven by the solar battery 85.

Further, the LED 41 also emits light. Zarani RS flip 7D
When the switch 178 is set, the high frequency oscillator 43 operates,
High frequency radio waves are output from the coil 44.

Next, an overview of the file search according to the embodiment shown in FIGS. 1 to 3 will be explained. First, before storing the files 6 on the shelf, the number designation switch 76 of the child search device 7 is operated to assign a unique file number (child side file number data) to each file 6.

Next, when the file number of the file 6 to be searched is entered by operating the 10 key 2 of the search instrument 1, that number is displayed on the display 3, and is transmitted by radio waves from the high frequency coil 5 and output as the parent side file number data. Ru.

What should be noted here is that the clock pulse and data pulse (data responding to the observation item number) are combined and output as radio waves.

That is, the clock pulse a and the data pulse b are combined by the gates G1 to G3, the first and second one-shots 31 and 32, and the NOR gate G4, and this combined pulse q is placed on the carrier wave.

On the other hand, the composite signal received by the high frequency coil 36 of the search slave device 7 is
The ND gate G7 separates the output pulse m and data pulse n again, and supplies them to the shift register 73. In this manner, in this embodiment, data is received and received between the sperm and slave devices asynchronously, and therefore there is no chance of interference between clock pulses and data pulses.

Another feature of this embodiment is that the search sub-device 7 is provided with a coil 44 for outputting high-frequency radio waves, and the search sub-device 7
is provided with a coil 9 and the like for receiving it. Therefore, when a desired article is searched, a high frequency radio wave is output from the coil 44 of the article, and an indication that the search has been made is made on the high frequency reception display 35 of the search instrument.

Next, the operation of the above embodiment will be explained in detail with reference to the time chart of FIG.

The pulse width of clock pulse a is To, and the pulse width of data pulse b
is in sync with this. When the data pulse b is at a high level, it indicates that the data is a logic "1", and when it is at a low level, it indicates that the data is a logic iiO. The first one shot 31 is a NAND gate G1
The pulse width T1 of the one-shot pulse e is equal to the pulse width T of the clock pulse a.
It is set to be larger than o (T > To). Further, the second one-shot 32 operates at the falling edge of the output d of the NAND gate G2, but the pulse width T2 of the one-shot pulse f is set to be smaller than the output pulse width To (T<To).

Therefore, the pulse Q obtained by combining the clock pulse a and the data pulse b becomes as shown in FIG. This corresponds to the fact that This composite signal becomes signal 1 shown in FIG. 4 and is sent as a radio wave.

The waveform of the signal received and waveform-shaped by the search slave device 7 side has the same shape as the signal i in the search parent device 1 except that the level is inverted. Third one shot 39
operates at the falling edge of the input signal, and the pulse width T3 of the output one-shot pulse 1 is the pulse width T of the clock pulse a.

(T ζTo). Also, the fourth
The one-shot 40 operates at the falling edge of the input signal 1, but the pulse width T4 of the output one-shot pulse m
is set smaller than the clock pulse width To (T
<To), therefore, the input of the AND gate G7 has the fourth
As shown in the figure, the high level is the data logic “1”
The low level corresponds to logic "0". In other words, the 19 pieces of information from the master search unit 1 are reproduced by the slave search unit 7 as information '9'.

In the above embodiment, the clock pulse and the data pulse are combined and transmitted from the coil of the search parent device, and received by the coil of the search slave device (asynchronous type), but the invention is not limited to this. That is, the coil 9, the high-frequency receiver 34, and the high-frequency transmitter of this embodiment are used in the main unit of the article search system disclosed in Japanese Patent Application No. 59-228357 (filed on October 30, 1989) by the present inventors. Display 3
5, high frequency oscillator 43 and coil 4 to the search slave device.
4 may be attached so that the search results can be displayed.

Furthermore, a circuit for displaying the above-mentioned search results may be added to the ultrasonic file search system disclosed in Japanese Patent Application No. 140401/1982 (filed on July 6, 1984).

° In addition, in the above embodiment, the number input means is 10 keys, but it is not limited to this, and keys for inputting alphabetic characters etc. may also be used (in this case, the file is indicated by an alphabetic code). ). Further, the display is not limited to a 7-segment, 4-digit display, but may be any display, such as a 6-digit or 8-digit display.

Furthermore, the display means to display that the numbers match is the LCD.
However, the present invention is not limited to this, and any device such as an LED (light emitting diode) or an audio output device may be used. Furthermore, the power source of the search slave device is not limited to a solar battery, but may be any type such as a mercury battery or a lithium battery.

On the other hand, it goes without saying that it is not essential to provide all of the LCD, electronic buzzer, and take-out lever, and they can be selected as necessary.

Roughly speaking, the present invention is not limited to searching for files, but can also be used to search for boxes such as cardboard boxes, search for cassette tapes, etc.
It can be applied to searching for all kinds of items, such as searching for stored items in a warehouse.

〔Effect of the invention〕

As described above, in the present invention, the data pulse and clock pulse are combined and output on the search parent device side, and the data pulse is separated and extracted from the synthesized pulse on the search slave device side. There is no interference between data pulses and clock pulses during the process, and furthermore, an article retrieval system that can easily and quickly search for a desired article can be obtained without requiring a special shelf or the like for storing articles.

In addition, if the search child device outputs a separate radio wave when the item number data on the parent side and the child side match, and this is received and displayed on the search gift side, the search work can be made easier and faster. It has the advantage of being able to

[Brief explanation of drawings]

FIG. 1 is an external view of a system including a search device and a search slave device according to an embodiment of the present invention, FIG. 2 is a circuit configuration diagram of the search device and high-frequency power amplifier shown in FIG. 1, and FIG. 1 is a circuit configuration diagram of the search child device shown in FIG. 1, and FIG. 4 is a time chart for explaining the operation of the above embodiment. 1...Search equipment, 2...10 keys, 4...High frequency TSH amplifier, 5.36.44...High frequency coil, 6
···centre? 7...Search slave device, 24...Electronic buzzer, 28...Eject lever, 76...Number designation switch, 77...Discrimination circuit, 79...Reset switch.

Claims (1)

[Claims] 1. A search parent device and a plurality of search slave devices attached to a plurality of searched articles individually, the search parent device having a number for inputting an article number serving as the parent side article number data. an input means, a carrier wave generation means for generating a carrier wave, a clock generation means for generating a clock pulse, a conversion means for converting the parent article number data into a data pulse synchronized with the clock pulse, and the clock pulse and the data. The search slave device has a synthesizing means for synthesizing pulses, and an output means for putting the output of the synthesizing means on the carrier wave and outputting it as a radio wave, and the search child device has an input means for inputting the radio wave, and an input means for inputting the radio wave to the input means. separation means for separating and extracting the parent article number data from the signal; and a determination for determining whether the parent article number data extracted by the separation means matches preset child article number data. and display means for displaying a match based on the output of the determining means when the parent side and child side article number data match each other. 2. The article search system according to claim 1, wherein the number input means has 10 keys. 3. Claim 1, wherein the display means includes an LCD.
Item retrieval system according to item or item 2. 4. The display means includes an LCD and a lever that operates based on the output of the discrimination means when the parent side and child side article number data match.
Item retrieval system according to item or item 2. 5. The article search system according to any one of claims 1 to 4, wherein the power source of the search slave device is a solar battery. 6. The synthesizing means includes a first multivibrator that generates a one-shot pulse in response to the clock pulse, a second multivibrator that generates a one-shot pulse in response to the data pulse, and a first multivibrator that generates a one-shot pulse in response to the data pulse. and a gate for ORing the outputs of the second multivibrator. 7. The separating means includes a third multivibrator that generates a one-shot pulse serving as a clock pulse in response to the signal input to the input means, and a one-shot pulse in response to the output of the first multivibrator. Claims 1 to 6 include a fourth multivibrator that generates a pulse, and a gate that ANDs a signal input to the third multivibrator and an output of the fourth multivibrator. The article search system described in any of the above. 8. A search parent device and a plurality of search child devices each attached to a plurality of articles to be searched. a carrier wave generating means for generating a carrier wave of the parent article number data; a first output means for outputting the parent article number data on the carrier wave as a wave such as a radio wave or an ultrasonic wave; a first input means for inputting the wave; and a first display means for displaying that the predetermined radio wave has been input to the first input means; an input means for
a determining means for determining whether or not the parent article number data inputted by the wave matches preset child article number data; An article retrieval system comprising: a display means for displaying a match based on the output of the discrimination means; and a second output means for outputting the predetermined radio wave when a match is found as a result of the discrimination. 9. The article search system according to claim 8, wherein the number input means has a 10 key. 10. The article search system according to claim 8 or 9, wherein the display means includes an LCD. 11. According to claim 8 or 9, the display means includes an LCD and a lever that operates based on the output of the discrimination means when the master device and child side article number data match. Listed article search system. 12. The article search system according to any one of claims 8 to 11, wherein the power source of the search slave device is a solar battery. 13. The article search system according to any one of claims 8 to 12, wherein the predetermined radio waves are high-frequency radio waves.