JP2915462B2 - Waste container identification code reader - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a waste container and a waste management system, and particularly to a long-term large amount of waste in a waste treatment and storage facility in a nuclear power plant or the like. The present invention relates to a waste container identification code reader suitable for container management.

[Prior art] Conventionally, for waste containers generated in waste treatment and storage facilities, when the waste is stored, some data such as the type, origin, responsible person, and contained radioactivity of the waste are entered. Labeled labels are directly attached to waste containers and managed.
In addition, every time the waste container is moved or inspected, the contents of the label on the waste container are checked and recorded in a book or the like for management.

[Problem to be Solved by the Invention] However, in the method of managing the waste container with the label attached to the waste container as in the above-described prior art, data on the waste contained in the waste container is limited only by the label. Therefore, every time a waste container is handled, the information must be entered and managed in a ledger, etc.Therefore, data on the waste container will be scattered in the ledger, etc. There was a problem that the history might not be able to be grasped enough. Further, when the waste container is managed only with the label, there is a problem that if the label is peeled off, the contained waste may not be identified. Furthermore, there is a problem in that when affixing and filling in a label manually, the worker is exposed to radiation.

Therefore, a discrimination symbol plate with mechanically readable symbols and human readable letters and numbers is attached to the waste container in advance to enable high-speed, high-reliability and remote automatic identification symbol identification. I do.

An object of the present invention is to attach a waste container identification code to the identification symbol plate in advance so that the waste container itself can be managed only by the waste container identification code. An object of the present invention is to provide a symbol reader.

[Means for Solving the Problems] To achieve the above object, a waste container identification code reading device according to the invention according to claim 1 is a waste container attached to an identification code plate provided on an outer wall of the waste container. A sensor for detecting a container identification code, and a movement mechanism that relatively moves the waste container with respect to the sensor so as to match the position with the waste container identification code with the detection position of the sensor. Means for recognizing the waste container identification code based on the information obtained by the sensor, wherein the waste container identification code reading device detects the waste container identification symbol attached to the identification symbol plate. Two or more sensors are provided as sensors for detecting the waste container identification code based on the comparison of the recognition result of the waste container identification symbol obtained by both sensors. Characterized in that it comprises means for judging whether the detection is appropriate or not.

In order to achieve the above object, a waste container identification code reading device according to a second aspect of the present invention is characterized in that, in the first aspect, the sensor comprises two or more types of sensors.

In order to achieve the above object, a waste container identification code reader according to the invention according to claim 3 is for detecting the waste container identification symbol attached to the identification symbol plate provided on the outer wall of the waste container. The sensor, the moving mechanism for relatively moving the waste container with respect to the sensor so that the position provided with the waste container identification code matches the detection position of the sensor, and the sensor. And a means for recognizing the waste container identification code based on the received information, comprising: a plurality of sensors as the sensors, each of which is attached to the identification symbol plate. It is characterized in that different waste container identification symbols are respectively detected.

[Operation] The waste and the waste container are managed by the waste container identification code attached to the identification code plate attached to the waste container,
By inputting those data from the input terminal, many data such as the history of the data can be collectively managed on the software, so that the data management in the handling of the waste can be easily performed.

The identification symbol plate attached to the waste container is used for the management of highly radioactive waste, etc.
A human-readable identification symbol may be written together, and this may be identified using a plurality of sensors.

[Embodiment] A waste management system according to a preferred embodiment of the present invention will be described below with reference to FIGS. The waste management system according to the present embodiment is an example in which there are three waste sources, one waste inspection place, and one waste storage place. As shown in FIG. 2 and FIG. 3, the waste generation sources are waste container identification code readers 16a, 16b and 16c, respectively.
A waste container identification code reader 16d and an inspection device 17 are provided at the waste inspection site, and a waste container identification code reader 16e and a storage transport device 19 are provided at the waste storage location. ing. Data of each device is relay control panel
The data is sent to the waste management computer 21 via 14, 18 and 20, and stored in the waste management memory 22 as a database.

As shown in FIG.
a is the identification symbol plate 2 attached to the outer surface of the waste container 1a.
An industrial television (ITV) camera 3a for reading the waste container identification code 23a attached to a and a lighting 4a, an ITV camera
An image processing device 6a that processes the image signal 5a obtained from 3a,
Identification symbol recognition / judgment means for recognizing waste container identification symbols
7a, a waste container rotating device 10a, a waste container rotating device control means 9a for controlling the same, and a data input / output terminal 12a.

When waste is generated, the waste is stored in a waste container 1a to which an identification code plate 2a to which a waste container identification code 23a is previously attached by engraving or the like is attached. The waste container 1a in which the waste is stored is a waste container identification code reader at the source.
Transported to 16a, waste container handling means (not shown)
As a result, it is placed on the waste container rotating device 10a. Thereafter, when a command to read the waste container identification code is issued from the data input terminal, the waste container rotation device 10a is driven by the waste container rotation control means 9a. Simultaneously with the rotation of the waste container, the image processing device 6a processes the image signal 5a obtained from the ITV camera 3a, and based on the processed signal, the identification symbol recognition / judgment means 7a performs the waste container identification as described later in detail. Search for the starting reference symbol 23a 'of the symbol. When the start reference symbol 23a 'is detected at a certain rotation position, a rotation stop command 8a is issued from the identification symbol recognition / determination means 7a, and the waste container rotation device 10 is stopped by the waste container rotation control means 9a, The waste container 1a is stopped at a predetermined position. After stopping,
A waste container identification number 23a ″ between a start reference symbol 23a ′ of the waste container identification symbol 23a and an end reference symbol 23a described below.
Is read by the identification symbol recognition / determination means 7a. When the waste container identification number 23 ″ is read, information 11a to that effect is displayed on the display of the data input / output terminal 12a via the relay control panel 14, prompting the user to input waste data. The worker at the source of the waste receives data on the waste from the data input / output terminal 12a, such as the type of waste, the source of the waste, the date of storing the waste, and the name (or name code) of the waste storage person. Enter various data.
The input data is input to the waste management computer 21 via the relay control panel 14 as a waste management data signal 15, and is stored in the waste management memory 22 as a database.

The configuration of the waste container identification code readers 16b and 16c at other waste sources is the same as described above, and the operations and operations performed on the waste generated at the relevant sources are the same. Description is omitted. The configuration of the waste container identification code readers 16d and 16e provided at the waste inspection location and the waste storage location, which will be described later, is the same as that of the waste container identification code reader 16a.

After the data related to the waste is input at the source at the waste container identification code readers 16a, 16b, and 16c as described above, the waste containers 1a, 1b, and 1c are moved into containers as shown in FIG. The handling equipment 24a, 24b sequentially transports the inspection equipment to an inspection place, where necessary inspections such as weight measurement, surface dose rate measurement, and surface contamination density measurement are performed using the inspection device 17. At this time, the waste containers 1a, 1b, and 1c are transported to the inspection locations from the three sources, respectively, so that the waste container identification symbols are read again by the waste container identification code reading device 16d. In the same manner as in the above, the waste container identification number 23a ″ and the inspection data obtained by the inspection device 17 are associated with each other as individual data, and the waste management computer 21 via the relay control panel 18 performs the waste management. That is, the input data at the source and this inspection data are associated with each other via the waste container identification number 23a ″.

After the inspection, each waste container 1a, 1b, 1c is carried to the waste storage location 19 by the waste container handling means 31a, 31b. At the storage location 19, the waste container identification number 23a ″ is read by the waste container identification code reader 16e, collated with the data in the waste management memory 22 via the relay control panel 30, and the waste management computer 21 Set an appropriate storage location, and according to the set storage location, waste containers 1a, 1b, 1c
Is transported by the waste container hanger 25 of the trolley 27 that moves on the waste container handling device rail 26, and moves to a predetermined position of the pallet 29 on the pallet supply device 28 that supplies the pallet 29. When four waste containers are loaded on the pallet, a waste container transport device such as a forklift
According to 30, the four waste containers are transported to the set storage position and stored. The data relating to the storage position is stored in the waste management memory 22 as a database.

FIG. 4 shows an example of the contents of data stored in the waste management memory 22. Comprehensive waste data is composed of several data bases for each waste generation location (input location). For example, the database 32 at the place where waste is generated contains the serial number of the waste container
32a, waste container identification number 32b, type of contents included in the waste container 32c, waste source 32d, date of waste generation
32e, data such as the name or the number 32f of the worker who stored the waste in the waste container is recorded. The database 33 at the waste inspection location contains the serial number of the waste container.
Data such as 33a, waste container identification number 33b, weight 33c, waste container surface dose rate 33d, dose rate 33e at 1m from the surface, surface contamination density 33f, and inspection date 33g are recorded. The storage location database 34 includes a waste container serial number 34a, a waste container identification number 34b, and a storage room number 34.
Data such as c, storage address 34d, storage date 34e, etc. are recorded.
By searching for the same waste container identification number from these databases 32, 33, and 34, etc., it is possible to collectively manage each waste container, that is, the history of the waste. In addition, even if the source of waste is newly added and its processing is added, a waste container identification symbol reading device and a processing data input device are added to this system, and a new database is similarly provided. Can be managed.

Next, FIG. 5 shows an embodiment of the waste container identification symbol 23a of the identification symbol plate 2a. The identification symbol 23a shown in FIG. 5 is provided with three grooves as a reading start reference symbol 23a 'on the identification symbol plate 2a, and the identification number 23a "is a code string 4 composed of a character string 40 and dots.
This is an example in which “1” and “1” are written in parallel (marked), and three grooves are provided as a reading end reference symbol 23a. In this example, the character string 40 and the code string 41 composed of dots correspond as shown in FIG. In FIG. 6, the black circles indicate the points marked on the identification sign board 2a.

As a method for reading the waste container identification code 23a, as shown in FIG. 1, the entire waste container identification code 23a is input as an image signal 5a by the ITV camera 3a, and the image processing device 6
The character string 40 in the image and the code string 41 by dots are separately subjected to image processing by a and recognized by the identification symbol recognition / determination means 7a, and it is determined that the recognition results of the two are the same. There is a method of outputting to the relay control panel 41. Another method of reading the waste container identification code 23a is as follows.
Of the image signal 5a input by the TV camera 3a, only the code string 41 by dots is extracted by the image processing device 6a and recognized by the identification symbol recognition / judgment means 7a, while a person receives a character string 40 from the ITV screen. To read data input / output terminal 12a
There is a method in which a waste identification number is input from the computer and the two are compared by the identification symbol recognition / determination means 7a, and after they are determined to be the same, the result is output to the relay control panel 14.
Furthermore, as a simple method of the reading method, image processing is not included, and an operator views an image obtained from the ITV camera 3a on a monitor screen of the input / output terminal 12a, and displays a waste container identification number from the terminal 12a. There is a way to enter.

Another embodiment of the waste container identification symbol 23a attached to the identification symbol plate 2a is shown in FIG. The identification symbol 23a shown in FIG.
As the reading start reference symbol 23a ', three grooves are provided on an identification symbol plate made of a metal material mainly composed of lead or the like, which is easy to process, and the identification number 23a "is indicated by a reading position symbol 42 and a dot at each reading position. The code string 43 to be formed is written (marked), and three grooves are provided as the reading end reference symbol 23a.

In the above-described embodiment, the image input from the ITV camera 3a is used as a method for reading the waste container identification code, but a reading method using an ultrasonic wave or the like may be used as the reading method.

Further, the same character / symbol attached to the identification sign plate on the waste container was read using the two types of reading sensors (or two reading sensors of the same type) as described above, and read by both sensors. Only when the characters and symbols match each other, the accuracy of the reading can be assured by using the read output as the correct one and taking measures such as issuing an alarm when they do not match.

Further, it is also possible to configure so that different characters / symbols attached to the identification symbol plate are respectively read by different reading sensors.

[Effects of the Invention] As described above, according to the present invention, it is possible to read characters and symbols engraved on an identification sign plate attached to a waste container.
It is possible to provide a waste container identification symbol reading device capable of reducing the probability of incorrectly recognizing a waste container identification symbol.

[Brief description of the drawings]

FIG. 1 is a system configuration diagram around a waste container identification symbol reading device of a waste management system according to one embodiment of the present invention, FIG. 2 is an overall system configuration diagram of a waste management system according to one embodiment of the present invention, FIG. 3 is a diagram showing the main components of the system shown in FIG. 2, FIG. 4 is an example of data stored in a waste management memory of the system shown in FIG. 2, and FIG. FIG. 6 is a diagram showing the correspondence between the characters and the dot code in FIG. 5 and FIG. 7 is another example of the waste container identification symbol shown in FIG. It is a figure showing an example. 1a, 1b, 1c: Waste container 2a: Identification plate 3a to 3c: ITV camera 6a: Image processing device 7a: Identification symbol recognition / judgment means 9a: Waste container rotation control means 10a to 10d … Waste container rotating device 12a …… Data input / output terminals 14, 18, 20 …… Relay control panel 16a-16e …… Waste container identification code reading device 17 …… Inspection device, 19 …… Waste container storage place 23a: Waste container identification code 21: Computer for waste management 22: Memory for waste management 24a, 24b: Container handling equipment

Continuation of the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) G21F 9/36

Claims (3)

(57) [Claims] 1. A sensor for detecting a waste container identification code attached to an identification code plate provided on an outer wall of a waste container, and detecting the position of the waste container identification code with the sensor. A waste mechanism comprising: a movement mechanism for moving the waste container relative to the sensor so as to match the position; and a unit for recognizing the waste container identification code based on information obtained by the sensor. In the container identification symbol reader, two or more sensors are provided as sensors for detecting the waste container identification symbol attached to the identification symbol plate, and the waste container identification symbol obtained by both sensors is provided. A means for judging whether or not the detection of the waste container identification symbol by these sensors is appropriate based on the comparison of the recognition result of the waste container identification symbol. 2. An apparatus according to claim 1, wherein said sensor comprises two or more types of sensors. 3. The sensor for detecting the waste container identification symbol attached to the identification symbol plate provided on the outer wall of the waste container, and the position where the waste container identification symbol is attached is determined by the sensor. A moving mechanism that moves the waste container relative to the sensor so as to match a detection position of the sensor; and a unit that recognizes the waste container identification code based on information obtained by the sensor. In the waste container identification code reading device provided, a plurality of sensors are provided as the sensors, and each of the sensors detects a separate waste container identification symbol attached to the identification symbol plate. Waste container identification code reader.