JPS6168541A - Video type tablet inspection - Google Patents

Video type tablet inspection

Info

Publication number
JPS6168541A
JPS6168541A JP18974984A JP18974984A JPS6168541A JP S6168541 A JPS6168541 A JP S6168541A JP 18974984 A JP18974984 A JP 18974984A JP 18974984 A JP18974984 A JP 18974984A JP S6168541 A JPS6168541 A JP S6168541A
Authority
JP
Japan
Prior art keywords
video signal
frame memory
foreign matter
detection
video
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP18974984A
Other languages
Japanese (ja)
Other versions
JPH0536742B2 (en
Inventor
Nobuo Nishikawa
西川　信夫
Susumu Sano
佐野　進
Kazukuni Yoshida
吉田　和晋
Yuji Matsuda
松田　佑治
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
C C D KK
HAYASHI YAKUHIN KIKAI KK
Daiichi Pharmaceutical Co Ltd
Original Assignee
C C D KK
HAYASHI YAKUHIN KIKAI KK
Daiichi Pharmaceutical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by C C D KK, HAYASHI YAKUHIN KIKAI KK, Daiichi Pharmaceutical Co Ltd filed Critical C C D KK
Priority to JP18974984A priority Critical patent/JPS6168541A/en
Publication of JPS6168541A publication Critical patent/JPS6168541A/en
Publication of JPH0536742B2 publication Critical patent/JPH0536742B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/94—Investigating contamination, e.g. dust

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Closed-Circuit Television Systems (AREA)

Abstract

PURPOSE:To enable the detection of a directional foreign matter, by writing a video signal into a frame memory through an A/D conversion to read data bidirectionally-horizontally and vertically. CONSTITUTION:A video signal converted into digital from analog ones are written horizontally into a frame memory in the order of addresses 11, 12, 13.... When the data written in the frame memory are read out vertically in the order of addresses 11, 21, 31..., the video signal obtained is the same as would be when a vertical scanning is done on a video camera. Where the density of a linear foreign matter 2 attached to the tablet 1 changes slowly in the horizontal way, the video signal obtained as the results of scanning over the foreign matter 2 changes so slowly in the voltage to be difficult in the detection even by processing such as differentiation thereof. In this case, the vertical scanning by the above-mentioned method will create a sharp voltage change in the video signal as illustrated thereby facilitating the detection by differentiation processing or the like.

Description

【発明の詳細な説明】 （産業上の利用分野） 本発明は工業用テレビカメラを用いたビデオ式錠剤検査
方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a video tablet inspection method using an industrial television camera.

（従来技術） 工業用テレビカメラを用いた錠剤の検査方法において、
従来ビデオ信号の処理は、時系列に微分等の処理を行な
う（アナログ処理）のが一般的であった。近年大容量高
速メモリが比較的安価になり、ビデオ信号をＡ／Ｄ変換
（アナログ信号をデジタル信号に変える）して、フレー
ムメモリに書き込みながら微分処理を行なう（デジタル
処理）ケースが多くなっている。(Prior art) In a tablet inspection method using an industrial television camera,
Conventionally, video signals have generally been processed by performing processes such as differentiation in time series (analog processing). In recent years, high-capacity high-speed memory has become relatively inexpensive, and there are many cases where video signals are A/D converted (changing analog signals to digital signals) and differential processing is performed while writing to frame memory (digital processing). .

（発明が解決しようとする問題点） 本発明は、前記微分処理を行なう処理方式において、水
平、垂直の二方向走査により、高精度な錠剤の外観検査
を容易に行なおうとするものである。(Problems to be Solved by the Invention) The present invention is intended to facilitate highly accurate external inspection of tablets by scanning in two directions, horizontal and vertical, in the processing method that performs the differential processing.

（問題点を解決するための手段及び作用）このため本発
明は、工業用テレビカメラを用いた錠剤の検査方法にお
いて、ビデオ信号をＡ／Ｄ変換してフレームメモリに書
き込み、データの読み出しを水平及び垂直の二方向に行
なうことにより、方向性をもった異物等の検出を可能な
らしめるものである。(Means and effects for solving the problem) Therefore, the present invention provides a method for inspecting tablets using an industrial television camera, in which a video signal is A/D converted and written into a frame memory, and data readout is performed horizontally. By performing the detection in two directions, both vertical and vertical, it is possible to detect foreign objects with directionality.

（実施例） 以下本発明の実施例を図面について説明すると、第１図
〜第４図は本発明の実施例を示す。第１図はフレームメ
モリ内の各番地を示しており、Ａ／１１変換したビデオ
信号は、１１．１２．１３−−−−−の順に水平方向に
書き込まれる。このフレームメモリ内に書き込まれたデ
ータを１１．２１．３１−−の順に垂直方向にも読み出
すことによって、ビデオカメラ上で垂直方向に走査した
場合のＡ／Ｄ変換したビデオ信号と同じものがｉ４られ
る。(Example) Examples of the present invention will be described below with reference to the drawings. FIGS. 1 to 4 show examples of the present invention. FIG. 1 shows each address in the frame memory, and A/11 converted video signals are written in the horizontal direction in the order of 11.12.13. By reading out the data written in this frame memory in the vertical direction in the order of 11.21.31--, the same A/D-converted video signal as scanned vertically on the video camera is obtained from the i4. It will be done.

第２図のように錠剤１に付着した線状の異物２の濃淡が
水平方向に緩やかに変化している場合、異物２上を走査
した結果得られるビデオ信号は、第３図のように電圧変
化が緩やかであり、これを微分等の処理をしても、検出
が困難である。When the density of the linear foreign object 2 attached to the tablet 1 changes gradually in the horizontal direction as shown in Fig. 2, the video signal obtained as a result of scanning the foreign object 2 will show the voltage as shown in Fig. 3. The change is gradual, and even if it is processed by differentiation or the like, it is difficult to detect.

この場合前記の方法で垂直走査すると、ビデオ信号は第
４図のように電圧の変化が急激になり、微分処理等によ
り検出が容易になる。In this case, if vertical scanning is performed using the method described above, the voltage of the video signal will change rapidly as shown in FIG. 4, and detection will be facilitated by differential processing or the like.

（発明の効果） 以」二説明した如く本発明は構成されているので、水平
、垂直の二方向走査により、錠剤（固形製剤）を高精度
に外観検査することができる。(Effects of the Invention) Since the present invention is constructed as described above, tablets (solid preparations) can be visually inspected with high precision by horizontal and vertical scanning in two directions.

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本発明の実施例を示し、第１図はフレームメモリ
内の各番地を示す説明図、第２図は錠剤の異物の状態を
示す平面図、第３図は水平走査時の信号波形線図、第４
図は垂直走査時の信号波形線］閃である。 図の主要部分の説明 １−錠剤　　　　　　２−異物 特　許　出　願　人　林薬品機械株式会社同　　　　　
第−製薬株式会社 同　　　　　株式会社シーシーディ 任 釧−似烟　　−The drawings show an embodiment of the present invention. Fig. 1 is an explanatory diagram showing each address in the frame memory, Fig. 2 is a plan view showing the state of foreign matter in a tablet, and Fig. 3 is a signal waveform line during horizontal scanning. Figure, 4th
The figure shows the signal waveform line during vertical scanning. Explanation of main parts of the diagram 1-Tablet 2-Foreign substance patent application Person Hayashi Yakuhin Kikai Co., Ltd.
Dai-Pharmaceutical Co., Ltd. CCD Co., Ltd.

Claims (1)

【特許請求の範囲】[Claims] 工業用テレビカメラを用いた錠剤の検査方法において、
ビデオ信号をＡ／Ｄ変換してフレームメモリに書き込み
、データの読み出しを水平及び垂直の二方向に行なうこ
とにより、方向性をもった異物等の検出を可能にしたこ
とを特徴とするビデオ式錠剤検査方法。In a tablet inspection method using an industrial television camera,
A video tablet characterized in that it enables directional detection of foreign objects, etc. by A/D converting a video signal, writing it into a frame memory, and reading data in two directions, horizontal and vertical. Inspection method.
JP18974984A 1984-09-12 1984-09-12 Video type tablet inspection Granted JPS6168541A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18974984A JPS6168541A (en) 1984-09-12 1984-09-12 Video type tablet inspection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18974984A JPS6168541A (en) 1984-09-12 1984-09-12 Video type tablet inspection

Publications (2)

Publication Number Publication Date
JPS6168541A true JPS6168541A (en) 1986-04-08
JPH0536742B2 JPH0536742B2 (en) 1993-05-31

Family

ID=16246534

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18974984A Granted JPS6168541A (en) 1984-09-12 1984-09-12 Video type tablet inspection

Country Status (1)

Country Link
JP (1) JPS6168541A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0745222A (en) * 1993-07-29 1995-02-14 Nec Corp Fluorescent character display tube

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54133186A (en) * 1978-04-06 1979-10-16 Ishikawajima Harima Heavy Ind Method of detecting flaws of hot piece
JPS5863838A (en) * 1981-10-14 1983-04-15 Fuji Electric Co Ltd Detecting circuit for defect

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54133186A (en) * 1978-04-06 1979-10-16 Ishikawajima Harima Heavy Ind Method of detecting flaws of hot piece
JPS5863838A (en) * 1981-10-14 1983-04-15 Fuji Electric Co Ltd Detecting circuit for defect

Also Published As

Publication number Publication date
JPH0536742B2 (en) 1993-05-31

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