Transportation Vehicle Management Methods

A centralized management system with real-time monitoring and dose testing addresses inefficiencies in managing transport vehicles carrying radioactive waste, ensuring safe and efficient operations.

JP2026054210APending Publication Date: 2026-03-26DOWA ECO SYST CO LTD
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-09-13
Publication Date
2026-03-26

AI Technical Summary

Technical Problem

Existing methods are inefficient in managing transport vehicles that carry industrial waste contaminated by radioactive substances, lacking real-time monitoring and proper dose testing, which poses risks during transportation and processing.

Method used

A centralized management system for transport vehicles equipped with location information systems, real-time monitoring, and dose testing at key stages, ensuring vehicles follow designated routes and meet radiation standards before and after processing.

Benefits of technology

Enables efficient, safe, and reliable management of transport vehicles carrying radioactive waste, ensuring compliance with radiation standards and optimizing transport and processing operations.

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Abstract

This invention provides a method for efficiently managing transport vehicles that carry waste from a designated area or industrial waste contaminated with radioactive materials. [Solution] A method for managing transport vehicles, in which a center that centrally manages transport vehicles equipped with a location information measurement system that transport waste within a designated area or industrial waste contaminated with radioactive materials receives transport information, including the location of the transport vehicle, the transport route, and the time taken to pass checkpoints, via a communication line between the transport vehicle and the center, and displays the transport information on the center's management monitor in real time.
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Description

Technical Field

[0001] The present invention relates to a method for managing transport vehicles.

Background Art

[0002] For example, Patent Document 1 discloses a waste disposal operation system that improves work efficiency in the waste disposal operation process of radioactive waste-contaminated waste.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] One embodiment of the present invention provides a method for efficiently managing transport vehicles that transport industrial waste contaminated by waste or radioactive substances within a countermeasure area.

[0005] In this specification, waste within the countermeasure area means waste within the contaminated waste countermeasure area (when the waste is carried out of the contaminated waste countermeasure area, the carried-out waste is included. Also, except for what is defined by the Ordinance of the Ministry of the Environment).) (See Article 13, Paragraph 1 of the Special Measures Law Concerning Measures Against Environmental Pollution Caused by Radioactive Substances Released by the Accident at Nuclear Power Plants Accompanying the Great East Japan Earthquake That Occurred on March 11, 2011 (Law No. 110 of August 30, 2011)).

Means for Solving the Problems

[0006] The first aspect of the present invention is A center that centrally manages transport vehicles equipped with a location information measurement system that transport waste within the designated area or industrial waste contaminated with radioactive materials receives transport information, including the location of the transport vehicle, the transport route, and the time taken to pass checkpoints, via a communication line between the transport vehicle and the center. This is a method for managing transport vehicles, in which the aforementioned transport information is displayed on the center's management monitor in real time.

[0007] A second aspect of the present invention is: The transport vehicle management method described in the first embodiment above is a transport vehicle management method in which the transport vehicle moves along a designated transport route when moving between a temporary storage site and a treatment facility for waste within the designated area or industrial waste contaminated with radioactive material.

[0008] A third aspect of the present invention is: After loading the aforementioned transport vehicle with the aforementioned waste from the designated area or industrial waste contaminated with radioactive materials at the temporary storage site, a dose test will be conducted on the transport vehicle. In the aforementioned dose test, the surface contamination density of the tires and the area around the wheel wells (hereinafter referred to as "tire area") of the transport vehicle was found to be 40 Bq / cm³. 2 This is the transport vehicle management method described in the second embodiment above, which is used to transport waste from within the designated area or industrial waste contaminated with radioactive materials in the following cases:

[0009] A fourth aspect of the present invention is: Before the transport vehicle leaves the processing facility, a dose test will be conducted on it. In the aforementioned dose test, (1) If the transport vehicle is carrying cargo, and the cargo, which is waste from within the designated area, is roof tiles or bricks, the radioactivity concentration is 8000 Bq / kg or less; if it is organic sludge, the surface dose rate is 0.5 μSv / h or less; if it is something other than roof tiles, bricks, or organic sludge, the surface dose rate is 0.23 μSv / h or less; and the surface contamination density around the tires of the transport vehicle is 40 Bq / cm³ 2 If any of the following apply, you will be asked to leave the processing facility. (2) When the transport vehicle is unloaded, the surface contamination density around the cargo bed and tires of the transport vehicle is 40 Bq / cm³ 2 If any of the following apply, you will be removed from the aforementioned processing facility. This is the transport vehicle management method described in the second aspect above.

[0010] A fifth aspect of the present invention is: The transport information further includes the date and time of departure of the transport vehicle and the date and time of entry into the processing facility, the vehicle registration number, the name of the driver, and the type of waste being transported from the area of ​​control or industrial waste contaminated with radioactive material, as described in the first embodiment of the transport vehicle management method.

[0011] A sixth aspect of the present invention is: This is a transport vehicle management method according to the second embodiment, which determines the order in which multiple transport vehicles are brought into the processing facility based on the type of waste from the designated area or industrial waste contaminated with radioactive material being transported by the transport vehicles.

[0012] A seventh aspect of the present invention is: This is the transport vehicle management method according to the first embodiment, wherein the center issues a warning to the transport vehicle when the transport vehicle deviates from the designated transport route.

[0013] An eighth aspect of the present invention is: This is a transport vehicle management method according to the second embodiment described above, which involves guiding the processing order of waste from the designated area or industrial waste contaminated with radioactive materials, or the route for transport vehicles, within the processing facility.

[0014] A ninth aspect of the present invention is: This is the transport vehicle management method according to the second embodiment described above, which involves measuring the weight of the transport vehicle outside the processing facility before entering and after leaving the processing facility, and calculating the net weight of the waste from the designated area or industrial waste contaminated with radioactive material that has been brought into the processing facility. [Effects of the Invention]

[0015] According to an embodiment of the present invention, it is possible to efficiently manage a transport vehicle that transports industrial waste contaminated by waste or radioactive substances within a countermeasure area.

Brief Description of the Drawings

[0016] [Figure 1] FIG. 1 is a flowchart showing an example of a transport vehicle management method according to a first embodiment of the present invention.

Modes for Carrying Out the Invention

[0017] [Details of Embodiments of the Present Invention] An embodiment of the present invention will be described below with reference to the drawings. Note that the present invention is not limited to these examples, and is defined by the claims, and is intended to include all modifications within the meaning and scope equivalent to the claims.

[0018] [The First Embodiment of the Present Invention] (1) Transport Vehicle Management Method The transport vehicle management method of the present embodiment will be described. FIG. 1 is a flowchart showing an example of the transport vehicle management method of the present embodiment. As shown in FIG. 1, the transport vehicle management method of the present embodiment includes, for example, an unloading plan determination step S101, a loading step S102, a first dose inspection step S103, a transportation step S104, an operation management step S105, an unloading step S106, a second dose inspection step S107, and a waste weight calculation step S108.

[0019] (Unloading Plan Determination Step S101) The unloading plan determination step S101 is a step of determining an unloading plan for waste for each temporary storage site in consideration of the processing capacity of a facility (hereinafter referred to as a processing facility) that performs processing such as crushing and sorting of waste, based on an unloading plan from a temporary storage site where industrial waste (hereinafter simply referred to as waste) contaminated by waste or radioactive substances within the countermeasure area is stored. Note that the unloading plan for waste may be appropriately reviewed in view of the waste storage status of the temporary storage site and the like.

[0020] The waste targeted in this embodiment includes, for example, at least one item selected from concrete, asphalt rubble, waste stone, metals, roof tiles, bricks, glass, rubble mixtures, refrigerators, washing machines, air conditioners, cathode ray tube televisions, gas cylinders, lighters, spray cans, cassette gas canisters, pesticides, chemicals, infectious waste, organic sludge, waste acids, waste alkalis, electrical equipment containing low concentrations of PCBs, liquid crystal panels, mixed metal scrap including waste plastics, heavy machinery, agricultural machinery, motorcycles, automobiles, unidentified waste oil, waste fire extinguishers, waste lead batteries, fluorescent lamps, and batteries.

[0021] (Loading process S102) The loading process S102 is, for example, the process of loading waste onto a transport vehicle for transporting waste at a temporary storage site. The loading method is not particularly limited as long as safety precautions are taken. The transport vehicle is equipped with a location information measurement system (e.g., GPS).

[0022] (First dose inspection process S103) The first dose inspection step S103 is a step in which a dose inspection is performed on a transport vehicle after the waste has been loaded at the temporary storage site. In the first dose inspection step S103, it is preferable to confirm, for example, that the surface contamination density around the tires of the transport vehicle is below a predetermined standard value, and then to proceed with the removal of the waste. Specifically, for example, the surface contamination density around the tires of the transport vehicle is 40 Bq / cm³. 2 It is preferable to remove waste in the following cases. Dose testing can be performed using known measuring instruments, and may also be performed by automated robots. For example, when dose testing is performed using a known GM survey meter, the number of radiation doses measured per minute (cpm) is measured, and by performing calibration under appropriate conditions, the measured value can be made to be below a predetermined value, such as a surface contamination density of 40 Bq / cm³. 2 The following may be considered equivalent: The conversion between the measured value from the measuring instrument and the surface contamination density is made considering the effective area of ​​the detection window of the measuring instrument, the dose efficiency, and the measurement efficiency of each individual instrument.

[0023] (Transportation process S104) The transportation process S104 is a process of transporting waste from a temporary storage site to a processing facility, for example, using a transport vehicle. In the transportation process S104, it is preferable that the transport vehicle travels along a designated transport route when moving between the temporary storage site and the processing facility. This makes it easier to manage the transport route and enables efficient transport of waste.

[0024] (Operation management process S105) Operation management process S105 is a process in which a center that centrally manages transport vehicles receives transport information via a communication line between the transport vehicles and the center, and manages the transport vehicles to ensure that waste is transported safely and reliably. Here, transport information includes information such as the location of the transport vehicle, the transport route, and the time taken to pass checkpoints. Checkpoints include temporary storage sites, processing facilities, and specific locations along the transport route. In operation management process S105, the transport information is displayed on the center's management monitor in real time so that the status of the transport vehicles can be grasped in real time. This allows for efficient management of transport vehicles.

[0025] Furthermore, it is preferable that the transportation information also includes information such as the date and time of departure of the transport vehicle, the date and time of entry into the processing facility, the vehicle registration number, the driver's name, and the type of waste being transported. This allows for more efficient management of the transport vehicles.

[0026] In the operation management process S105, it is preferable for the center to issue a warning to the transport vehicle if it deviates from the designated transport route. Furthermore, it is preferable to guide the transport vehicle that has deviated from the designated transport route back onto the route. This enables the efficient transport of waste.

[0027] (Carry-in process S106) The loading process S106 is, for example, the process of bringing transport vehicles into the processing facility and loading the waste. The loaded waste is subjected to appropriate processing such as crushing, sorting, and decontamination according to its type. In loading process S106, it is preferable to determine the order in which multiple transport vehicles are brought into the processing facility based on the type of waste being transported by each vehicle. This allows for more efficient management of the transport vehicles.

[0028] In the loading process S106, it is preferable to guide the waste processing sequence or the loading route of transport vehicles within the processing facility. This guidance is preferably based on information about the waste being transported by the transport vehicles. This allows for more efficient management of the transport vehicles.

[0029] Transport vehicles may enter the processing facility empty and leave after loading the waste that has been properly processed, or they may enter the facility loaded with waste, transport the waste, and then leave the facility empty.

[0030] (Second dose inspection process S107) The second dose inspection process S107 is a process in which, for example, a transport vehicle is subjected to a dose inspection before leaving the processing facility. Specifically, for example, if the transport vehicle is loaded and the loaded waste is roof tiles or bricks, the radioactivity concentration is 8000 Bq / kg or less; if it is organic sludge, the surface dose rate is 0.5 μSv / h or less; if it is something other than roof tiles, bricks, or organic sludge, the surface dose rate is 0.23 μSv / h or less; and the surface contamination density around the tires and wheel wells of the transport vehicle is 40 Bq / cm³. 2 If the following conditions are met, the vehicle will leave the treatment facility and, if the transport vehicle is unloaded, the surface contamination density around the transport vehicle's cargo bed and tires is 40 Bq / cm³. 2 If the following conditions are met, it is preferable to leave the processing facility. This ensures that waste can be processed safely. Dosage measurements can be performed using known measuring instruments, or they may be measured by automated robots.

[0031] (Waste weight calculation process S108) The waste weight calculation step S108 is a step to calculate, for example, the net weight of waste brought into the treatment facility. Specifically, it is preferable to measure the weight of the transport vehicle outside the treatment facility before entering and after leaving the treatment facility, and to calculate the net weight of waste brought into the treatment facility by subtracting the weight after leaving from the weight before entering. This ensures reliable waste management.

[0032] The above process makes it possible to efficiently manage transport vehicles carrying waste from the designated area or industrial waste contaminated with radioactive materials.

[0033] <Other embodiments of the present invention> Although embodiments of the present invention have been specifically described above, the present invention is not limited to the embodiments described above, and various modifications are possible without departing from the spirit of the invention.

[0034] For example, in the above embodiment, the removal plan formulation process S101, the loading process S102, the first dose inspection process S103, the transportation process S104, the operation management process S105, the delivery process S106, the second dose inspection process S107, and the waste weight calculation process S108 were described as being performed in order, but it is not necessary to perform all of the above processes. Also, the order in which the above processes are performed may be changed as needed.

[0035] Furthermore, although the above-described embodiment described the case of processing waste within a designated area, the present invention is not limited thereto, and for example, industrial waste contaminated with radioactive materials may also be processed. When processing this industrial waste, the procedure may be the same as in the above-described embodiment, except that the standard values ​​in each dose inspection process for the industrial waste are changed to different standards than those for waste within a designated area. Specific reference values ​​are as follows, for example: In the second dose inspection process S107, which is a process in which dose inspections are conducted before the material leaves the processing facility, the standard values ​​for the processed material (derived from industrial waste) should be set to the following (1) to (3). (1) If the processed material (derived from industrial waste) is ultimately disposed of in a landfill, the radioactivity concentration of the processed material must be 8000 Bq / kg or less. (2) When the processed material (derived from industrial waste) is recycled without restrictions, the radioactivity concentration of the processed material is 100 Bq / kg or less. (3) When the treated material (derived from industrial waste) is used in outdoor public works such as roads and rivers in the Hamadori and Nakadori regions of Fukushima Prefecture, the radioactivity concentration of the treated material must be 100 Bq / kg or less or the surface dose rate must be 0.23 μSv / h or less. [Explanation of symbols]

[0036] S101 Process for formulating the transportation plan S102 Loading process S103 First dose inspection process S104 Transportation Process S105 Operation management process S106 Loading process S107 Second dose inspection process S108 Waste Weight Calculation Process

Claims

1. A center that centrally manages transport vehicles equipped with a location information measurement system that transport waste within the designated area or industrial waste contaminated with radioactive materials receives transport information, including the location of the transport vehicle, the transport route, and the time taken to pass checkpoints, via a communication line between the transport vehicle and the center. A method for managing transport vehicles, which involves displaying the aforementioned transport information on the center's management monitor in real time.

2. The method for managing transport vehicles according to claim 1, wherein the transport vehicle moves along a designated transport route when moving between a temporary storage site and a treatment facility for waste within the designated area or industrial waste contaminated with radioactive material.

3. After loading the aforementioned transport vehicle with the aforementioned waste from the designated area or industrial waste contaminated with radioactive materials at the temporary storage site, a dose test will be conducted on the transport vehicle. In the aforementioned dose test, the surface contamination density around the tires and wheel wells of the transport vehicle was found to be 40 Bq / cm³. 2 The transport vehicle management method according to claim 2, wherein waste within the designated area or industrial waste contaminated with radioactive material is transported out in the following cases:

4. Before the transport vehicle leaves the processing facility, a dose test will be conducted on it. In the aforementioned dose test, (1) If the transport vehicle is carrying cargo, and the cargo, which is waste from the designated area, is roof tiles or bricks, the radioactivity concentration is 8000 Bq / kg or less; if it is organic sludge, the surface dose rate is 0.5 μSv / h or less; if it is something other than roof tiles, bricks, or organic sludge, the surface dose rate is 0.23 μSv / h or less; and the surface contamination density around the tires of the transport vehicle is 40 Bq / cm³ 2 If any of the following apply, you will be asked to leave the processing facility. (2) When the transport vehicle is unloaded, the surface contamination density of the transport vehicle's cargo bed and around the tires is 40 Bq / cm³. 2 If any of the following apply, you will be removed from the aforementioned processing facility. The method for managing transport vehicles according to claim 2.

5. The method for managing transport vehicles according to claim 1, wherein the transport information further includes information on the date and time of the transport vehicle's departure and entry into the processing facility, the vehicle registration number, the driver's name, and the type of waste being transported from the designated area or industrial waste contaminated with radioactive material.

6. The transport vehicle management method according to claim 2, wherein the order in which multiple transport vehicles are brought into the processing facility is determined based on the type of waste from the area under control or industrial waste contaminated with radioactive material being transported by the transport vehicle.

7. The method for managing transport vehicles according to claim 1, wherein the center issues a warning to the transport vehicle when the transport vehicle deviates from the designated transport route.

8. The transport vehicle management method according to claim 2, which involves guiding the processing order of waste from the designated area or industrial waste contaminated with radioactive materials, or the route for transport vehicles, within the processing facility.

9. The method for managing transport vehicles according to claim 2, wherein the weight of the transport vehicle is measured outside the processing facility before entering and after leaving the processing facility, and the net weight of the waste from the designated area or industrial waste contaminated with radioactive material brought into the processing facility is calculated.

Citation Information

Patent Citations

  • Waste operation system and waste operation method of waste contaminated by radioactive material

    JP2018096940A