JP2004085458A - Multifunctional and space-saving area entrance and exit control system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a space-saving area entrance and exit control system, capable of making operation workers enter and exit from an area by monitoring, instructions, and remote control from a central surveillance room. <P>SOLUTION: The area entrance and exit control system is provided with an area entrance and exit control device concurrent contamination monitor 1, installed at a location at a distance from the central surveillance room 2. The area entrance and exit control device concurrent contamination monitor 1 is provided with two gates 14 and 15; a dosemeter reading part 11; a body surface measuring part 12; a small article measuring part 13; a monitor control part 16; and a signal processing part 17. The area entrance and exit control device concurrent contamination monitor 1 is connected to a radiation control computer 3, to process acquired data at the signal processing part 17 and control the area entrance and exit of the operation workers. The area entrance and exit control device concurrent contamination monitor 1 is connected to a monitor control part 21 of the central watchman room 2, to monitor the movements of the operation workers inside or converse with and instruct them from the central surveillance room 2. By operating the opening and closing switch of the monitor control part 21, the gate 14 etc. on the side of an uncontrolled area are opened. <P>COPYRIGHT: (C)2004,JPO

Description

“表１”は、小物物品の放射能汚染状態の判定結果（小物物品汚染判定結果）、業務従事者の体表面の放射能汚染状態の判定結果（体表面汚染判定結果）及び退域資格判定結果の組み合わせに対する本システムの対応として表され、表中のＯＫは退域可の判定結果を、ＮＧは退域否の判定結果を表す。
なお、退域資格判定は、上述の入域資格判定と同様に放管計算機を介して遂行される。
３つの判定結果が全てＯＫの場合は、その業務従事者の退域に問題がなく、非管理区域側ゲート１４が自動で開かれ、その業務従事者を退域させる。
退域チェクのみＮＧの場合には、監視員が、退域後に個人警報線量計のデータを放管計算機に登録することを業務従事者に指示し、中央監視制御部２１からの遠隔操作で非管理区域側ゲート１４を開かせ、その業務従事者を退域させる。
小物物品汚染判定結果及び体表面汚染判定結果のいずれかまたは両方がＮＧの場合には、個人警報線量計の読取り結果をリセットし、管理区域側ゲート１５を自動で開いて、その業務従事者を管理区域に戻し、必要な除染処置をさせ、再度、このシステムで退域資格判定を受けさせる。
【００１７】
【発明の効果】
この発明においては、業務従事者が入退域する位置に、従来技術における入退域管理装置、体表面汚染モニタ及び小物物品搬出モニタの機能を兼備する入退域管理装置兼汚染モニタを配備し、中央監視員室から入退域管理装置兼汚染モニタ内部に居る業務従事者を監視し、必要に応じて、監視員がこの業務従事者と会話してこの業務従事者に指示を与える手段、及び、中央監視員室からゲートを開けさせる手段を備えているので、エラー発生等の異常時等で業務従事者が困惑した場合等には、中央監視員室の監視員がその状態を把握し、この業務従事者と会話し指示を与えることができ、且つゲートの遠隔操作で業務従事者を適切に入退域させることができる。
したがって、この発明によれば、入退域位置が中央監視員室から離れていても、従来技術のように係員の到着を待つ必要がなく、業務従事者を円滑に入退域させることができる。
また、入退域管理装置兼汚染モニタは体表面汚染モニタをベースとしてコンパクトに構成されるので、これが必要とするスペースは、従来技術における入退域管理装置、体表面汚染モニタ及び小物物品搬出モニタの全スペースに比べてずっと狭くなり、飛地等のように広い設置面積を確保できない場所にもこの入退域管理システムは適用可能である。
【図面の簡単な説明】
【図１】この発明による多機能省スペース型入退域管理システムの実施例の構成を示すブロック図。
【図２】実施例の業務従事者及び情報の動きを示すフロー図。
【符号の説明】
１　入退域管理装置兼汚染モニタ
１１　　線量計読み取り部　　　　１２　　体表面測定部
１３　　小物物品測定部　　　１４　　非管理区域側ゲート
１５　管理区域側ゲート　　１６　監視制御部
１７　信号処理部
２　　中央監視員室
２１　監視制御部　　　　　２２　開閉ＳＷ
３　放管計算機。[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multifunctional space-saving type entrance / exit management system that manages the entrance / exit of a worker who works in a radiation control area (hereinafter abbreviated as a control area) such as a nuclear power plant. .
[0002]
[Prior art]
Workers working in the controlled area receive some confirmation and monitoring from entry to exit, are given alarms in certain situations, and are limited in their subsequent actions. In some cases, an error occurs in the device used for confirmation and monitoring, and normal confirmation and monitoring require time and labor.
When an alarm or abnormality occurs during confirmation or monitoring, a message, such as a description of the situation, is displayed on the display unit inside the device used for confirmation or monitoring. Appears on the device and the clerk is called. Workers act according to the instructions of the staff.
[0003]
Employees who work in the controlled area are qualified by the access control device and the release computer connected to it when entering the area. Qualification is determined by the device, and predetermined data (exposure dose value, etc.) is registered in the discharge control computer. For this qualification determination, a personal alarm dosimeter (hereinafter abbreviated as a dosimeter) to which personal data has been input is used. If the dosimeter could not be read during entry, if the worker was not registered, or if the exposure dose exceeded the permissible limit, a gate for entry was set. If it is not opened (entry rejected), an alarm is issued and a message such as an explanation of the situation is displayed, and at the same time, it is displayed in the central monitoring room that the entry management device requires a response. With this display, a staff member rushes to the site to take appropriate measures. The worker rejected to enter the area waits for the arrival of a staff member and performs the subsequent actions according to the staff member's instructions. If the dosimeter fails to read during the departure, a similar alarm is issued, a message is displayed, and a clerk is called.
[0004]
Also, when workers leave the radiation control area after completing work in the radiation control area, the body surface contamination monitor monitors the state of radioactive contamination on the whole body surface immediately before leaving the area, and leaves the facility as it is. It is determined whether or not it is acceptable. If the contamination level exceeds the permissible limit, the worker is locked inside the body surface contamination monitor, an alarm is issued and a message is issued, as in the case of entry denied by the entry / exit control device. Is displayed, and at the same time, the central observer room indicates that this whole body surface contamination monitor needs attention. With this display, a staff member rushes to the site. The worker trapped inside the body surface contamination monitor waits in the body surface contamination monitor until the staff arrives, is taken out of the body surface contamination monitor by the staff, and performs further actions according to the instructions of the staff. do. For example, after the contamination of the whole body surface is removed (decontamination), it is monitored again.
[0005]
In addition, notebooks, mobile phones, tools, and the like (small articles) carried by the worker are also monitored for radiological contamination by the small article removal monitor when leaving the area, and the small articles may be directly removed. It is determined whether or not. If the contamination level exceeds the permissible limit, the small item will not be sent to the discharge side, an alarm will be issued and a message will be displayed, and at the same time, the small item removal monitor will correspond to the central guard room. Is displayed. With this display, a staff member rushes to the site. The worker carrying this small article waits until the clerk arrives, and performs the subsequent actions according to the instruction of the clerk. For example, after decontamination of small articles, they are monitored again.
[0006]
The above description has described the case where the entry / exit area management device, the body surface contamination monitor, and the small article carry-out monitor (hereinafter, these devices are collectively referred to as an entry / exit area management device, etc.) operate normally. However, when an abnormality occurs in the entry / exit area management device or the like, a warning is similarly issued, a message is displayed, and a clerk is called.
In addition, an intercom for calling the observer in the central observer room is installed near the entrance / exit control device, etc., and when an alarm or abnormality occurs, the intercom gives explanations and instructions on how to deal with it. Can receive.
[0007]
[Problems to be solved by the invention]
The access control device described above is installed mainly in the vicinity of the radiation control area of main facilities such as nuclear power plants. For this reason, facilities that are installed on enclaves away from main facilities, such as waste storage facilities and waste disposal facilities, may not install entry / exit area management devices, etc. It is very inconvenient to enter the management area or leave the management area unless the user goes to an entrance / exit management device or the like that is distant from the facility.
In addition, even if an entry / exit area management device is installed in a facility installed at an enclave such as the one above, in the event of an error such as an error, the clerk arrives from the central monitoring room to call the clerk to the site. It takes a long time to do this, which can be confusing and uneasy for the workers on site, and time is lost.
On the other hand, in the case of a facility installed at an enclave as described above, the number of people engaged in work there is small and the space that can be secured is also small, so it is uneconomical to provide an entrance / exit management device etc. there. Therefore, it is often difficult to secure space.
[0008]
An object of the present invention is to solve the above-mentioned problems by monitoring a worker who is going to enter or leave the area from a central monitoring room, and a worker and a central monitoring person who need instructions, advice, etc. Gives instructions to this worker by talking from the room, and allows the worker to enter and leave the area by remote control from the central monitoring room, with a small installation area and a multifunctional space-saving type entry / exit area. To provide a management system.
[0009]
[Means for Solving the Problems]
According to the present invention, when a worker working in the radiation control area enters the radiation control area, the worker reads the data of the personal alarm dosimeter carried by the worker and enters the area of the worker. When a worker who works in the radiation control area leaves the radiation control area, reads the data of the personal alarm dosimeter carried by the worker, and A multifunctional space-saving type entrance / exit management system for monitoring the radioactive contamination state of the body surface and the radioactive contamination state of small articles carried by the worker and managing the leaving of the worker. , An entry / exit area management device / contamination monitor provided at the entry / exit area, a discharge control computer, and a monitoring control unit in the central monitoring room. Control area side gate and control area Gate, dosimeter reading means for reading data from personal alarm dosimeters, body surface measuring means for measuring radioactive contamination on the body surface of workers, radioactive contamination status of small articles carried by workers Of the worker based on the results of the entry / exit qualification judgment of the discharge control computer based on the data read by the dosimeter reading means, the measurement data of the body surface measurement means and the measurement data of the small article measurement means. Signal processing means for controlling the leaving area, imaging means for transmitting the movement of the worker inside the entrance / exit control device and contamination monitor to the monitoring control unit of the central guard room, and the worker and the central guard room And a communication means for allowing a supervisor in the supervisory control unit to talk to the supervisory control unit, and opening the non-management area side gate or the management area side gate in response to a switch operation in the supervisory control unit in the central supervisory room. A monitoring means provided in the central monitoring room, wherein the monitoring control unit in the central monitoring room has a video means for displaying a trend of a worker present in the entrance / exit area management device and contamination monitor transmitted from the imaging means, Communication means in the central guard room that talks to this worker through the communication means and gives instructions to this worker, and gates in the non-management area or in the management area to enter and leave this worker And a switch for transmitting a signal to open to the monitor control means.
[0010]
In the present invention, an entry / exit area management device, a contamination monitor having both functions of a body surface contamination monitor and a small article carry-out monitor according to the prior art are provided at a position where a worker enters and exits. A means for monitoring a worker in the entrance / exit control device and contamination monitor from the central guard room, and, if necessary, communicating with the worker and giving instructions to the worker; In addition, since there is a means to open the gate from the central supervisory room, if the worker is confused due to an error such as an error, the monitoring from the central supervisory room and the central supervisor Communication from the room gives the appropriate instructions and opens the gate.
In addition, since the entrance / exit area management device and contamination monitor are compactly configured based on the body surface contamination monitor, the space required by the entrance / exit area management device, the body surface contamination monitor, and the small article unloading monitor in the prior art is required. Is much narrower than the entire space.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of a multifunctional space-saving type entry / exit area management system according to the present invention will be described using an example.
FIG. 1 is a block diagram showing the configuration of an embodiment of a multifunctional space-saving type entry / exit management system according to the present invention, and FIG. 2 is a flowchart showing the movement of business workers and information in the embodiment.
This embodiment comprises an entry / exit area management device / contamination monitor 1 provided at an entry / exit area, a discharge control computer 3, and a monitoring control unit (hereinafter referred to as a central monitoring control unit) 21 of a central monitoring room 2. Is done.
[0012]
The entry / exit area management device and contamination monitor 1 is a compact integration of an entry / exit area management device, a body surface contamination monitor, and a small article carry-out monitor based on the body surface contamination monitor. It has a control area side gate 15, a dosimeter reading section 11, a body surface measuring section 12, a small article measuring section 13, a signal processing section 17, and a monitoring control section (hereinafter referred to as a terminal monitoring control section) 16.
The dosimeter reading section 11 is means for reading the data of the personal alarm dosimeter carried by the worker entering and leaving the area, and is combined with the signal processing section 17, the uncontrolled area side gate 14, and the controlled area side gate 15. It has the function of the access control device.
The body surface measuring section 12 is a means for measuring the radioactive contamination state of the body surface of the worker who is going to leave the area, and is combined with the signal processing section 17, the non-controlled area side gate 14 and the controlled area side gate 15. It has the function of body surface contamination monitor.
The small article measuring unit 13 is a means for measuring the radioactive contamination state of the small articles carried by the worker who wants to leave the area, and together with the signal processing unit 17 and the uncontrolled area side gate 14, the small article contamination monitor. It has the function of.
As described above, the signal processing unit 17 and the two gates 14 and 15 are shared, and the entire device is made compact.
[0013]
The signal processing unit 17 is connected to the discharge control computer 3 via a LAN. The discharge control computer 3 records data of workers of the entire facility such as a nuclear power plant, and usually judges the eligibility for entering and leaving. As shown in Japanese Patent Application No. 2002-050765 by the present inventors, the entry qualification determination is performed before the processing is performed by the present apparatus, and the medium on which the result is recorded is used as a personal alarm dosimeter. In the case that the entrance qualification judgment result indicates that entry is possible, the personal alarm dosimeter does not generate an alarm when the entry qualification is judged to be acceptable, and when the entry is not permitted, an alarm of the personal alarm dosimeter is issued. It is also possible to replace the request for entry qualification judgment and the entry qualification judgment by the release computer and send it to the signal processing unit, receive the entry qualification judgment result by the signal processing unit, and process according to the entry qualification judgment result It is.
[0014]
The terminal monitoring control unit 16 is connected to the central monitoring control unit 21 via a LAN, and includes an imaging device for monitoring the trend of a worker in the entrance / exit area management device / contamination monitor 1 from the central monitoring control unit 21. A communication means is provided between a worker in the entry / exit area management device and contamination monitor 1 and a monitor of the central monitoring control unit 21. The gates 14 and 15 are opened and closed by a remote signal from the central monitoring control unit 21. The terminal monitoring control unit 16 does not know how to operate the worker in the entry / exit area management device and contamination monitor 1 in the event of an error such as an error, and will be described later in the case of being confused. Along with the central monitoring control unit 21, the supervisor communicates with the worker from the central supervisor room 2 via the monitor TV, gives appropriate instructions, opens the necessary gate 14 or 15, and engages in the worker. The entry / exit area of the worker is reduced, the anxiety of the worker is reduced, and the residence time in the entry / exit area management device / contamination monitor 1 is shortened. The central monitoring control unit 21 has a monitor TV for displaying an image in the entrance / exit area management device / contamination monitor 1 and a telephone call for giving an instruction with a worker in the entrance / exit area management device / contamination monitor 1. Means, and, if necessary, an open / close switch (open / close SW in FIG. 1) 22 that issues a signal to open the gates 14 and 15 by remote control and causes the terminal monitoring control unit 16 to open the gates 14 and 15. I have.
[0015]
In this embodiment, the entry qualification when the worker enters the area is determined by reading the data of the personal alarm dosimeter by the dosimeter reading unit 11 and sending the data to the release computer 3 by the signal processing unit 17. , A request for judging the entry qualification, a request for judging the entry qualification by the discharge control computer 3 and transmission of the result to the signal processing unit 17, and a reception of the judgment result of the entry qualification by the signal processing unit 17.
As shown in Japanese Patent Application No. 2002-050765, the entry qualification determination is performed before performing the entry qualification determination with this apparatus, and the medium recording the result is attached to a personal alarm dosimeter. If the entry qualification judgment result indicates that entry is possible, the alarm of the personal alarm dosimeter will not be generated if the entry is not permitted, and if the entry is not permitted, the alarm of the personal alarm dosimeter will be generated, so that the signal processing unit will determine the entry qualification. It is also possible to replace the request with the entry eligibility judgment by the release computer and transmit it to the signal processing unit, receive the entry eligibility judgment result by the signal processing unit, and process according to the entry eligibility judgment result.
If the entry qualification determination result indicates that entry is possible, the signal processing unit 17 opens the management area side gate 15 to allow the worker to enter the service area. Open the side gate 14 and return the worker to the uncontrolled area. When an error such as an error occurs, a supervisor of the central supervisory control unit 21 at a remote location interacts with the worker using the communication means, and then operates the open / close SW 22 to open the non-management area side gate 14. Return workers to uncontrolled areas.
[0016]
When a worker leaves the company, radioactive contamination of the body surface and small articles is monitored in addition to the determination of the person who leaves the company. Table 1 shows the correspondence of the embodiment to various situations of the resignation qualification determination result and the pollution monitoring result.
[Table 1]

“Table 1” shows the determination results of the radioactive contamination state of small articles (small article contamination judgment results), the judgment results of the radioactive contamination state of the body surface of the worker (body surface contamination judgment results), and the exit qualification judgment. This is expressed as a correspondence of the present system to the combination of the results. In the table, “OK” indicates the determination result indicating that the leaving is possible, and “NG” indicates the determination result indicating whether the leaving is not permitted.
It should be noted that the leaving eligibility determination is performed via the discharge control computer in the same manner as the above-described entry eligibility determination.
If all three determination results are OK, there is no problem in leaving the business worker, and the non-management area side gate 14 is automatically opened to leave the business worker.
If only the exit check is NG, the observer instructs the worker to register the data of the personal alarm dosimeter in the release computer after leaving the zone, and the remote control from the central monitoring control unit 21 disables the operation. The management area side gate 14 is opened, and the worker is left.
If either or both of the small article contamination judgment result and the body surface contamination judgment result are NG, the reading result of the personal alarm dosimeter is reset, and the control area side gate 15 is automatically opened, and the worker is Return to the controlled area, perform any necessary decontamination procedures, and re-qualify for retirement with this system.
[0017]
【The invention's effect】
In the present invention, an entry / exit area management device, a contamination monitor having both functions of a body surface contamination monitor and a small article carry-out monitor according to the prior art are provided at a position where a worker enters and exits. A means for monitoring a worker in the entrance / exit control device / contamination monitor from the central guard room and, if necessary, talking to the worker and giving instructions to the worker, In addition, since there is a means to open the gate from the central supervisory room, if a worker is confused due to an error such as an error, the supervisor in the central supervisory room will grasp the condition. It is possible to talk with the worker and give an instruction, and the worker can be appropriately moved into and out of the area by remote control of the gate.
Therefore, according to the present invention, even if the entry / exit position is away from the central monitoring room, there is no need to wait for the arrival of a clerk as in the related art, and the worker can enter / exit the area smoothly. .
In addition, since the entrance / exit area management device and contamination monitor are compactly configured based on the body surface contamination monitor, the space required by the entry / exit area administration device, the body surface contamination monitor, and the small article unloading monitor in the prior art is required. This entry / exit area management system can be applied to a place where a large installation area cannot be secured, such as an enclave, which is much smaller than the entire space.
[Brief description of the drawings]
FIG. 1 is a block diagram showing the configuration of an embodiment of a multifunctional space-saving type entry / exit area management system according to the present invention.
FIG. 2 is a flowchart showing the movement of business workers and information according to the embodiment.
[Explanation of symbols]
REFERENCE SIGNS LIST 1 entry / exit area control device and contamination monitor 11 dosimeter reading unit 12 body surface measurement unit 13 small article measurement unit 14 non-management area side gate 15 management area side gate 16 monitoring control unit 17 signal processing unit 2 central monitoring room 21 monitoring Control unit 22 Open / close SW
3 Defuse calculator.

Claims (1)

When a worker working in the radiation control area enters the radiation control area, read the data of the personal alarm dosimeter carried by this worker and manage the entry of this worker, Also, when a worker who has worked in the radiation control area leaves the radiation control area, reads the data of the personal alarm dosimeter carried by the worker and radiates the body surface of the worker. A multifunctional space-saving type entrance / exit management system for monitoring the state of radioactive contamination and the state of radioactive contamination of small articles carried by the worker, and managing the exit of the worker,
An entry / exit area management device / contamination monitor deployed at the entry / exit area;
A discharge control calculator,
And a monitoring and control unit in the central guard room,
The access control device and contamination monitor
An uncontrolled area side gate and a controlled area side gate,
Dosimeter reading means for reading data of the personal alarm dosimeter,
Body surface measurement means for measuring the radioactive contamination state of the body surface of the worker,
Small article measuring means for measuring the radioactive contamination status of small articles carried by the worker,
Signal processing means for controlling the entrance / exit area of a worker based on the results of the evacuation qualification of the discharge control computer based on the data read by the dosimeter reading means, the measurement data of the body surface measurement means and the measurement data of the small article measurement means; ,
An imaging unit that sends the movement of the worker inside the entry / exit area control device and contamination monitor to the supervisory control unit in the central supervisory room, and talks between this worker and the supervisor in the supervisory control unit in the central supervisory room. And communication control means for opening the non-management area side gate or the management area side gate in response to a switch operation in the monitoring control unit of the central monitoring room,
The monitoring control unit in the central guard room
Image means for displaying a trend of a worker in the entrance / exit area management device and contamination monitor transmitted from the imaging means,
A communication means on the side of a central guard room that talks with the worker through the communication means and gives instructions to the worker,
A switch for transmitting a signal to open the non-management area side gate or the management area side gate to allow the worker to enter and leave the work area to the monitoring control means,
A multifunctional space-saving entry / exit management system characterized by the following features.

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