JP2001305226A - Doorway control system for nuclear power plant - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a doorway control system for a nuclear power plant allowing more rational and strict doorway control, and improving working efficiency of workers. SOLUTION: In this doorway control system, personal general data used for entrance permit application into a peripheral protection section 3 and a protection section 2 of the nuclear power plant, and personal general data used for entrance permit application into a radiation control section 1 are unified, an ID card used for entering and leaving the three sections 1-3 is commonized in the three sections 1-3, and a worker capable of passing through a doorway gate 31 of a doorway control device (RP in Figure) to the radiation control section 1 is restricted to only a worker that has passed through both doorway gates 31, 21 to the peripheral protection section 3 and the protection section 2. The ID card is recorded with various data registered in the entrance permit application, and properly-disposed read/write devices and display devices (R/W and; D in Figure) 51-53 or the like read or write the various data.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a management system for managing the entry and exit of a worker to a protection area, a radiation control area, and the like in a nuclear power plant.

[0002]

2. Description of the Related Art In a nuclear power plant, an intrusion warning device (hereinafter, referred to as Phys.) For warning a person who illegally intrudes into a surrounding monitoring area, a surrounding protection area and a protection area from the outside.
ical Protection; abbreviated as “PP”), and the dose of radiation (hereinafter referred to as the radiation dose) that workers have received in a radiation control area (hereinafter abbreviated as a discharge area) that occupies a part of the protection area. Abbreviated area access control system (hereinafter referred to as Radiation Protectio)
n; abbreviated as “RP”), and each of the management computers manages vigilance against illegal intruders and management of exposure dose to business workers.

[0003] Each of the PP and RP has an entrance / exit gate, and by passing through the entrance / exit gate, it is possible to enter each area. In order for a worker to pass through the entrance / exit gate, the worker makes the PP or RP read the information on the ID card that he / she carries, and the worker is allowed to pass through the entrance / exit gate. It is necessary to have the management computer, which is the higher-level processing device, confirm that the user is a user. In many power plants to date,
The management of the PP and the management of the RP are performed by separate systems, and separate ID cards are used for each.

[0004] An ID card carried by a worker is issued by an application approval procedure which is performed via a management section based on an application for entry permission by a document from the application section. The data of the workers who are allowed to enter by this application are registered in the management computer. The management computer is PP
Based on the read information of the ID card transmitted from the user or the like, the worker corresponding to the ID card is determined, and the opening / closing of the entrance / exit gate is determined based on various registered data of the worker, and the determination is made. The result is transmitted to a PP or the like to open and close the entrance / exit area gate.

[0005] The data registered in the management computer for PP includes: 1) personal general data (name, gender, date of birth, affiliation, etc.) 2) entry permitted range data (entry permitted range, entry permitted period, Etc.), and the data registered in the management computer for RP are: 1) General personal data (name, gender, date of birth, affiliation, etc.) 2) Exposure management data (expiration date of medical examination, daily unit, etc.) Exposure dose equivalent in monthly units, entry time, etc.).

FIG. 4 is an explanatory diagram showing a model of an area division and an arrangement of an entrance / exit gate in order to explain the entrance / exit management of a nuclear power plant according to the prior art. In the premises of a nuclear power plant, a protection area 2 mainly set up by a nuclear power plant, a peripheral protection area 3 set so as to surround the periphery thereof, and a protection area 2 are set up to protect the site from outside. And the surrounding monitoring area 4. The security level increases in the order of the peripheral monitoring area 4, the peripheral protection area 3, and the protection area 2 as approaching the nuclear power plant.

[0007] Within the protected area 2 is the discharge area 1. In the surrounding protected area 3, a waiting place (resting place) 8 and a monitoring place 7 are also provided. In the case of this figure, the office 6 is located in the peripheral monitoring area 4, but the interior is partitioned and a part thereof is the peripheral protection area 3. A PP or RP (not shown) is provided at the boundary of each area, the peripheral protective area PP is provided with an entrance / exit gate 31 for the peripheral protective area, and the protective area PP is provided with an access to the protective area. Exit gate 21
The RP is provided with an entrance / exit gate (an entrance / exit gate of the RP in FIG. 4) 11 for the discharge section 1.

The peripheral protection area 3 has its outer periphery surrounded by an intrusion prevention fence or the like. In order to enter the inside, the worker must pass through the entrance / exit gate 31 to the peripheral protection area. There is. The worker entering from the entrance / exit gate 31 reads the ID card into the peripheral protection area PP to indicate that the worker is registered as a permission to enter the peripheral protection area 3. Peripheral protected area PP is I
The access request data (ID number) of the D card is read and transmitted to the management computer.

[0009] Based on the entry request data, the management computer checks the registered data of the worker, and if the entry is not ineligible, enters the entrance / exit gate to the PP for the peripheral protected area.
Open 31. The worker can pass through the opened entrance / exit gate 31 and enter the surrounding protected area 3. Therefore, in order for the worker to be able to pass through the entrance / exit gate 31, it is necessary that the worker is registered as a permission to enter the surrounding protected area 3. Surrounding protected area
The same applies to the case where the worker enters the protected area 2 from 3 and the worker registered as a worker who is permitted to enter the protected area 2 passes through the entrance / exit gate 21 to the protected area with an ID card. Can be.

[0010] When entering the discharge zone 1, the worker must carry a personal alarm dosimeter or the like for measuring the exposure dose, and before passing through the RP, the worker must do so. After renting out, the RP is made to read the ID card and the entrance / exit gate 31 of the RP is opened to pass. Workers who can pass through this gate must be registered as a worker who has permission to enter the detention zone 1, and must also ensure that the exposure equivalent value is within the allowable range, and to conduct a medical examination and radiation protection education. It is necessary to meet the eligibility conditions for entering the radiation control area, such as that the examination of the WBC (whole body counter) has not expired.

[0011]

In the conventional entry / exit management system as described above, the PP entry / exit management and R
Since the entry and exit area management of P is performed independently, separate ID cards are used for each. Therefore, each
It is necessary to apply for the approval of the application for entry permission and to register the data for which the application has been approved to the management computer, which requires corresponding personnel, equipment and work time. Since a worker has multiple ID cards, it has multiple ID numbers that need to be stored, which makes it difficult to use them if they forget or misuse them. There is a high possibility that trouble will occur. Therefore,
The labor, equipment, and expenses required for entry / exit management are high, and the work efficiency of workers is low.

Incidentally, recently, there has been seen a power plant in which an ID card for passing through the entrance / exit gate of the PP and an ID card for passing through the entrance / exit gate of the RP are commonly used. There are still points to be improved. That is,
In the conventional entry / exit management, since there is no means for a worker to accurately grasp his / her registered data at a desired timing, an inefficient action as shown in the following example may occur.

[0013] For example, in the case of a worker who works in the discharge area, even if the expiration date of the medical examination, which is ineligible for entering the discharge area, this worker does not enter the PP gate.
Since it is possible to pass through 31 and 21, it is not known that the RP cannot enter the discharge section until reaching the RP entry / exit gate 11. Therefore, it can be understood that this worker cannot pass through the RP gate until it reaches the RP after passing through some entrance / exit gates of the PP. This worker
Since the RP cannot pass, return to the waiting station 8 and contact the staff at the monitoring station 7 and act according to the instructions, or wait for the staff to arrive at the waiting station 8 and be guided by the staff. That is to act. In this case, if the worker is in a confused state, the worker cannot smoothly and accurately perform the above-mentioned actions, which causes a great loss of time. A similar situation is
In the morning, when working in the discharge zone, the exposure dose has almost reached the permissible value, or when the remaining available time is short, and the user attempts to re-enter the discharge zone. Also occurs.

An object of the present invention is to provide a method for storing PP data and RP data.
A centralized and shared data system is used to effectively utilize the system, enabling more rational and stricter entry / exit management, and improving the work efficiency of business workers. To provide.

[0015]

According to the present invention, there is provided an intrusion warning device provided for protecting and managing a predetermined monitoring area in a nuclear power plant. A radiation control area entry / exit control device provided for the management of radiation dose, etc. is provided, and when the operator passes through the entrance / exit gate of each of these devices, the operator carries it. In a nuclear power plant entrance / exit management system that reads information on an ID card and manages entrance / exit based on registration data pre-registered in a management computer, centralizes the management of personal general data of workers. At the same time, the ID card has been shared by all entry / exit gates of the intrusion alert device and the radiation control area entry / exit control device, and has passed through the prescribed entry / exit gate of the intrusion alert device. The condition, and to allow room access range from room access zone gate of the radiation controlled area room access area management device
(Invention of claim 1).

[0016] In the access control system for a nuclear power plant according to claim 1, the intrusion warning device includes a protection area including the radiation control area and a peripheral protection area set to extend outside the protection area. And the surrounding monitoring area set to surround the entire power plant site as the monitoring area,
In addition, each area has an entrance / exit gate, and the ID card has personal identification information including an employee code.
And the second identification information including the biometric data is recorded, and the entrance / exit gate of the peripheral monitoring area is opened / closed based on the first identification information, and the entrance / exit of the peripheral protection area and the protection area is recorded. The area gate is opened and closed based on the first and second identification information (the invention of claim 2).

In the access control system for a nuclear power plant according to claim 1, a worker who is registered for work in the radiation control area and is not eligible to enter the radiation control area. At the time of entry from the entrance / exit gate of the intrusion warning device, it is notified that the entry into the radiation control area is ineligible (the invention of claim 3).

Also, an intrusion warning device provided for protection management of a predetermined monitoring area in a nuclear power plant, and a radiation control area provided for managing the dose of radiation to be exposed to workers. When the worker passes through the entrance / exit gate of each of these devices, the information of the ID card carried by the worker is read and the registration registered in the management computer in advance is provided. In the access control system for a nuclear power plant that manages access based on data, the ID card is a readable / writable ID card, and includes personal general data, entry permitted range data, work registration data, and exposure management. It has an area for recording data, at least in the vicinity of the entrance and exit gates to the protected area set as the monitoring area of the intrusion warning device and the surrounding protected area. , Deployed and ID card read / write device display and to permit the output displayed on a display device the various data in a radiation controlled area outside (the invention of claim 4).

[0019] In the access control system for a nuclear power plant according to claim 4, an ID that is not connected to the management computer of the intrusion warning device and the radiation control area access control device at a plurality of locations in the nuclear power plant. A card reading device and a display device are provided (the invention of claim 5).

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the access control system for a nuclear power plant according to the present invention will be described with reference to an embodiment. The parts having the same functions as those of the prior art are denoted by the same reference numerals.

[First Embodiment] FIG. 1 is a diagram showing the area division of a nuclear power plant and the arrangement of entrance / exit gates, and FIG. 2 is a block diagram schematically showing an entrance / exit management system. In addition,
In FIG. 1, as in the conventional example of FIG. 3, it is assumed that a protection area 2, a peripheral protection area 3, and a peripheral monitoring area 4 are set so as to spread annularly around the discharge section 1. In this embodiment, the personal general data for the management of the PP is integrated with the general personal data for the management of the RP, and the application for permission to enter the surrounding monitoring area, the surrounding protection area and the protection area has already been completed. When a business worker or a business worker who will apply for a permit from now on applies for permission to enter the detention zone, the general personal data for the management of the PP is used as the general personal data for the management of the RP. Alternatively, personal general data for RP management is used as it is as personal general data for PP management. That is, the personal general data input at the entry permission application terminal 20 is shared by the PP management computer and the RP management computer. Further, the ID card can be used in common at all the entrance / exit gates 31, 21, and 11. Furthermore, when a worker who is permitted to enter the discharge area enters the discharge area 3, it must be confirmed that he / she has passed a predetermined entrance / exit gate managed by the PP. It is a condition of permission to enter. Workers who intend to work in the discharge area 3 must first enter the peripheral protection area 3 through the entrance / exit gate 31 to the peripheral protection area, and then enter the entrance / exit gate 21 to the protection area. By passing through and entering protected area 2,
The RP can enter the discharge zone 1 from the entrance / exit gate 11 of the RP. Therefore, if the passage information from the entrance / exit gate 31 and the passage information from the entrance / exit gate 21 are transmitted to the RP management computer connected to the PP and the network,
It can be seen that the worker has reached the RP through the regular route. In other words, it can be understood that the worker without the passage information is a trespasser. The R / W attached to each gate may record the symbol of the R / W that has performed the reading operation on the ID card as pass information. According to this embodiment, the unification of personal general data greatly simplifies the procedure for approving entry permission applications, and the use of a common ID card reduces the burden on business workers when entering and leaving the area, and makes it easy to forget to carry. Trouble and time loss due to loss etc. are greatly reduced. Further, by utilizing the information of the PP management for the RP management, the protection level of the discharge area can be improved.

[Second Embodiment] In the above-described embodiment, at least the passage through the entrance / exit area gate 31 to the surrounding protection area and the entrance / exit area gate 21 to the protection area is confirmed by the discharge section 1
Although it is an essential condition for permission to enter, it is desirable to provide an entrance / exit gate also at the guardhouse 9 and to add as a condition of entry permission that it passes through the entrance / exit gate 41 to the surrounding monitoring area 4 . In this case, the ID card also serves as an “entry certificate” on the premises of the nuclear power plant, and is taken out of the facility.
It is necessary to strictly confirm that the carrier of the D-card is the person himself. Therefore, in the ID card, first identification information composed of a worker code and second identification information composed of biometric data such as palm shapes, fingerprints, and retinal patterns are recorded as personal identification information. Shall be. Then, an ID card reader is arranged near the entrance / exit gate 41 of the guardhouse 9 (periphery monitoring area) where many people pass, and the entrance / exit gate 11 of the highly important peripheral protection area and the protection In the vicinity of the entrance / exit gate 21 in the area, a biometric information identification device is arranged in addition to the ID card reader. The opening and closing of the entrance / exit gates 41 of the peripheral monitoring area 4 is controlled based on the first identification information, and the entrance / exit gates 21 and 31 of the peripheral protection area 3 and the protection area 2 are controlled.
Is controlled based on the first and second identification information. According to this embodiment, the ID card can also be used as a proof of entry into the premises of the power plant. It is possible to do
Moreover, the peripheral protection area 3 and the protection area 2 with high importance
A sufficient security level can be secured for entering and leaving the area. Also, even when the system is stopped,
It is also easy to set each entry / exit gate so as not to be stopped, and it is possible to operate only the function as an access control device, so rational operation is possible from the viewpoint of maintenance and inspection work. It becomes possible.

[Third Embodiment] In this embodiment, as shown in FIG. 1, an entrance / exit gate 31 to the surrounding protection area, an entrance / exit gate 21 to the protection area, and a radiation control area 1 to the radiation control area 1. In the vicinity of the entrance / exit gate 11, a read / write device for an ID card and a display (R / W & D) 51, 52, 53 are provided, respectively.
Has been deployed. If a worker who is scheduled to work in the release area is ineligible at the time of entering the release area for any reason, the information is transmitted from the management computer for RP to the management computer for PP. When the worker passes through the entrance / exit gates 31 and 21 of the PP, the worker is notified by a display or a voice that the worker is ineligible when entering the discharge zone. As a result of this notification, the worker must be ineligible at the time of entry to the release area and cannot pass through the RP entry / exit gate 11 when passing through the PP entry / exit gates 31 and 21. , It is possible to take immediate action at the locations of the PP entrance and exit gates 31 and 21 for subsequent actions, reducing unnecessary travel time and actions, and improving the efficiency of the work of the worker. Is improved.

[Fourth Embodiment] In this embodiment, when a worker encounters an unexpected situation in connection with entrance / exit management, for example, the "release" described in the third embodiment is executed. This is a system for performing the subsequent operations smoothly and appropriately without disturbing the worker in the case of being “ineligible when entering the pipe area”. As the ID card, a readable / writable ID card is used, and this ID card is provided with an area for recording at least personal general data, entry permitted range data, work registration data, and exposure management data. Various data are recorded. In the vicinity of the outside of each of the entrance / exit gates 11, 21 and 31, a read / write device for the ID card connected to the management computer and a display device for displaying its contents (R / W &
D, hereinafter abbreviated as R / W & D) 51, 52, and 53. If the worker wants to check the various data including the unexpected situation as described above, the R / W & D 51, 52 or 53 reads the various data recorded on the ID card. The data is transmitted from the management computer, written on the ID card, and displayed on the display device. In this way, the worker can check these various data, so that the worker can accurately grasp his / her situation at that time, and can perform the subsequent actions appropriately without confusion. Become like In this example,
Although the case where the R / W & D is arranged near the outside of each of the entrance / exit gates 11, 21 and 31 has been described, it is also effective to arrange the R / W & D in the waiting area 8 or the discharge area 3.

[Fifth Embodiment] In this embodiment, as shown in FIG. 3, data is transmitted and received between the PP and RP management computers at a plurality of locations (three locations in the figure) on the site of the power plant. It is assumed that a simplified ID card reading and displaying device 55 having only an ID card reading function and a display function is provided. As a result, the worker can grasp his / her registration data at a desired timing. In addition,
Since it is only necessary to install a simple ID card reading and displaying device that is not connected to the management computer at a desired place in the office, it is possible to reduce costs and improve convenience.

[0026]

As apparent from the above description, according to the present invention, the following effects can be obtained. Management of personal general information (name, gender, date of birth, affiliation, etc.) of workers is unified, and ID cards are shared by all entrance and exit gates of PP and RP. The clerical procedures for approving the application for permission to enter the protected area and the discharge area can be simplified, one ID card can pass through the prescribed entrance / exit gate, and multiple ID cards must be carried. And the likelihood of being forgotten or lost is reduced. Furthermore, when passing through an entrance / exit gate to a high-priority release area, the condition of permitting entry is to pass through a predetermined entrance / exit gate of the intrusion warning device. By simply writing, the security level can be improved without significantly changing the configuration of the existing system.

In addition, a worker who has registered work in the release area and who is not qualified to enter the release area can enter the PP from the entrance / exit gate. At times, you will be notified that you are ineligible to enter the
This worker can immediately take a countermeasure for a subsequent action at the position of the PP without going to the RP, thereby improving the work efficiency of the worker.

[0028] If necessary, the worker can read the personal general data recorded on the ID card and the access area using the ID card read / write device and the display device provided in the surrounding protected area and the protected area. Permission range data, work registration data, exposure management data, and the like can be confirmed, and the various data registered in the upper processing device can be read and confirmed, and simultaneously recorded on the ID card. Therefore, if you are denied entry at the entrance / exit gate or notified that you are ineligible to enter the discharge area, you will be asked to confirm your situation.
It can be grasped by the reading / writing device and the display device of the D card, and the subsequent actions can be appropriately executed without confusion.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a model of an area division and an arrangement of entrance / exit gates, etc., for explaining an embodiment of a nuclear power plant entrance / exit management system according to the present invention.

FIG. 2 is a block diagram showing an outline of an access control system for a nuclear power plant according to the present invention.

FIG. 3 is a diagram for explaining a fifth embodiment of the present invention;

FIG. 4 is an explanatory diagram showing a model of a nuclear power plant area division and arrangement of entrance / exit gates, etc.

[Explanation of symbols]

 1 Radiation control area 11 RP entry / exit gate 2 Protected area 21 Entry / exit gate to protected area 3 Peripheral protected area 31 Entrance / exit gate to peripheral protected area 4 Peripheral monitoring area 41 Entry / exit area to peripheral monitoring area Gate 51, 52, 53 R / W & D 54 R / W 55 R & D 6 Office 7 Monitoring station 8 Standby station

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Tomi Nika No. 5-3, Shinzakuracho, Toyama-shi, Toyama 2nd Toyama Electric Building 5F F-term in O-Tech Electronics Co., Ltd. 2G075 AA01 CA48 DA08 FB08 FC04 GA02 2G088 AA07 AA09 3E038 AA01 AA13 BA20 BB01 CA06 CB02 CB03 DB06 FA10 GA02 HA07 JA01 JA02

Claims (5)

[Claims] 1. An intrusion warning device provided for protection management of a predetermined monitoring area in a nuclear power plant;
It has a radiation control area entry / exit management device provided for the management of the dose of radiation exposure of workers, etc., when the worker passes through the entrance / exit gate of each of these devices,
In the entry / exit management system of a nuclear power plant that reads the information of the ID card carried by the worker and manages the entry / exit area based on the registration data registered in advance in the management computer, Centralized the management of general data, and shared the ID card with all entry / exit gates of the intrusion alert device and the radiation control area entry / exit control device, and passed the prescribed entry / exit gate of the intrusion alert device. An entry / exit management system for a nuclear power plant, characterized by permitting entry / exit from an entry / exit gate of a radiation control area entry / exit management device on the condition that: 2. The access control system for a nuclear power plant according to claim 1, wherein the intrusion warning device includes a protection area including the radiation control area and a surrounding area set to extend outside the protection area. The protected area and the surrounding monitoring area set to surround the entire power plant site are the monitoring areas,
In addition, each area has an entrance / exit gate, and the ID card has personal identification information including an employee code.
And the second identification information including the biometric data is recorded, and the entrance / exit gate of the peripheral monitoring area is opened / closed based on the first identification information, and the entrance / exit of the peripheral protection area and the protection area is recorded. An entrance / exit management system for a nuclear power plant, wherein an area gate is opened and closed based on first and second identification information. 3. The access control system for a nuclear power plant according to claim 1, wherein the worker is registered for work in the radiation control area and is not eligible to enter the radiation control area. Nuclear power generation, when a worker in an emergency state is informed that he or she is not eligible to enter the radiation control area when entering through the entrance / exit gate of the intrusion warning device Office access control system. 4. An intrusion warning device provided for protection management of a predetermined monitoring area in a nuclear power plant;
It has a radiation control area entry / exit management device provided for the management of the dose of radiation exposure of workers, etc., when the worker passes through the entrance / exit gate of each of these devices,
In the access control system for a nuclear power plant, which reads information on an ID card carried by the worker and manages access based on registration data registered in advance in a management computer, the ID card is read out. / Writable ID card, which has an area for recording personal general data, entry permitted range data, work registration data and exposure management data, and at least a protection area set as a monitoring area for an intrusion warning device; An ID card read / write device and a display device are provided near the entrance / exit gate to the peripheral protection area, and the various data can be output and displayed on the display device outside the radiation control area. Access control system for nuclear power plants. 5. The access control system of a nuclear power plant according to claim 4, wherein a management computer of an intrusion warning device and a radiation control area access control device is connected to a plurality of locations in the nuclear power plant. An entry / exit management system for a nuclear power plant, comprising a readout device and a display device for an ID card.