JPS6135798A - Automatic determination of biota - Google Patents

Abstract

PURPOSE:To enable the accurate determination of the biota in a specimen liquid, by dividing the expanded image of the biota of the specimen liquid photographed with a camera, comparing the image in each divided section with the preliminarily stored reference images, and specifying the kind of the microorganisms in the section. CONSTITUTION:The state of the biota in an aeration tank 1 is photographed properly with the camera 2 of the monitoring TV apparatus 3, and the expanded image is displayed on the monitor TV5 via a transmitter 4. The image signal is divided with a CPU7, and each divided image is compared with the preliminarily stored reference 6 to specify the kind of microorganism. The biota of the specimen liquid can be determined accurately, and a proper control of the aeration tank can be carried out by this process.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention divides the screen of the biota of the liquid to be treated enlarged and photographed with a camera, and compares the microorganisms in the image with pre-stored references for each division. This invention relates to an automatic biota determination method for identifying biota.

[Prior art]

For example, in activated sludge treatment, the main role of the treatment is the activated sludge microorganisms in the aeration tank, and activated sludge treatment can only be carried out smoothly by adjusting the environmental conditions for these microorganisms.

Conventionally, the PH, NO, etc. in the aeration tank have been used as indicators of the microbial environment. In addition, sludge microorganisms in the aeration tank were observed using a microscope to understand the condition inside the aeration tank.

However, although this method using a microscope is a very effective means, it has the drawback that the observation requires skill and labor.

[Summary of the invention]

This invention was made in order to solve the above-mentioned drawbacks, and the biota in the liquid to be observed is monitored using a monitor TV camera device, the enlarged screen is divided into a plurality of parts, and each division is memorized in advance. The purpose of the present invention is to provide an automatic biota determination method that can accurately grasp the observed liquid by comparing the type of biota with the reference obtained.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings.

As shown in FIG. 1, a camera 2 such as an NV bioscope is immersed inside the aeration tank 1 to take an enlarged picture of the biota of the activated sludge in the aeration tank 1.

The camera 2 of this monitor television device 3 is connected to a monitor television 5 via a converter 4 that outputs a photographed image as an image signal.

The monitor television 5 has an image divided into a plurality of parts as shown in FIG. 2, and is connected to a central processing unit (CPU) 7 connected to a reference 6. Patterns of a plurality of indicator organisms are stored in advance in this reference 6, and a central processing unit (CPU) 7 compares each divided image with this reference 6.

[Effect]

According to the above configuration, the state of biota in the aeration tank 1 is appropriately photographed by the camera 2 of the monitor television device 3,
The enlarged image is displayed on a monitor television 5 via a converter 4. The image signal is then processed by the central processing unit (CPU).
)? The microorganisms are identified (fixed) by comparing each divided screen with a pre-stored image 6. Here, microorganism specific image processing is performed by, for example,
The procedure is as follows.

■Select things that are considered to be living organisms from the entire screen. This is done, for example, by selecting independent objects with sharp outlines.

■Next, the size and external shape of this object are specified, and the characteristic features of the object are specified. For example, we identify whether there are flagella, how large the mouth is relative to the overall pressure, and whether there is an axoneme.

■Reference this size, external shape, and characteristic parts (in advance,
After image processing, the necessary characteristics of the living body are stored in a part of the CPU memory and can be retrieved by paging.

■Then, perform this query and comparison multiple times (according to the number of built-in pages), count the number of each species,
The results are output to the monitor television 5. (Here, the shape of the camera 2 determines how many rnlVc of the liquid to be observed corresponds to one image, so the number of organisms should be converted to the number of organisms per ml.

Also, by repeating this sampling and query many times before processing the data, more accurate results can be obtained.

At this time, if there is a continuation from the divided section of the monitor TV 5 to the adjacent screen, the query for that target is suspended and the query is compared using the information combined with the adjacent screen. It's good to do. Furthermore, the division of the screen is as follows:
You can use several different types of 5KL, it is better to change the classification depending on the species ◇ Divide the reference 6 into large, medium, small, etc., and when large, for example, divide four times as many categories as small. Inquire as a unit.

Furthermore, if no solid substance is found in the divided screen, no inquiry comparison is performed and a signal indicating that there are no microorganisms is output.

Furthermore, regarding the type of determination, it is preferable to be able to determine the floc size density, etc., in addition to identifying biological species such as protozoa and metazoa.

In this example, the activated sludge in the aeration tank was used as the target for observing biota, but it may also be used for biological observation in contact aeration treatment tanks, anaerobic treatment tanks, fermentation tanks, bioreactors, etc. , of course.

〔Effect of the invention〕

As described above, according to the present invention, the biota in the liquid to be measured is monitored using a monitor TV camera device, the enlarged screen is divided into a plurality of sections, and each section is compared with a pre-stored reference. By determining the type of phase, the biological phase of the observed liquid can be accurately grasped, and there are extremely excellent effects such as being able to carry out appropriate control.

[Brief explanation of drawings]

FIG. 1 is a longitudinal cross-sectional view of an embodiment of an apparatus to which the present invention is applied, and FIG. 2 is an explanatory view of the same. 2...Camera, 3...Monitor TV device, 5...
・Monitor TV, 6...Reference. Patent Applicant Nishihara Environmental Health Research Institute Co., Ltd. (2 others) Drawing Purification 11: (Contents (: No changes) Figure 1 Figure 2 Procedural Amendment (Voluntary) August 1980-8

Claims (1)

[Claims] A process of dividing the image obtained by enlarging the liquid to be measured with a camera into multiple parts, and comparing the divided images for each division with pre-stored references to identify the microorganisms in the image. An automatic biota determination method comprising a process.