JPS625732Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention relates to a device that monitors operators who insert ID cards and perform processing operations to enter and exit radiation-controlled areas, and their radiation exposure status.

[Prior Art] Regarding an example of this type of entrance/exit control device, the first
This will be explained with reference to a perspective view of the figure. This device is installed, for example, at the entrance to a radiation-controlled area, and checks entry qualifications and requirements when entering a controlled area from an uncontrolled area, and records the exposure dose when exiting from a controlled area to an uncontrolled area. . In Figure 1, which describes the operating method and structure of this device based on Figure 1, a person who wants to enter area B (controlled area) from area A (uncontrolled area) must open door 1A on the side of area A. Press touch switch 2A to open door 1.
A is driven by an automatic opening/closing mechanism and rotates to the open position in the direction shown by the dashed line P, and the door 1A is opened. Here, the person entering the area enters the device with an ID card and dosimeter, and steps on top of the Matsuto switch 3. Here, the door 1A that was opened first is rotated in the opposite direction and closed. Visitors should insert their ID card into ID card slot 4.
When each dosimeter is inserted into the dosimeter insertion port 5,
The ID card and dosimeter are transferred and pulled inside the device. The device reads the contents of the ID card and dosimeter, and if the entry conditions are satisfied, the permitted work title is displayed on the display 6. At this time, the person entering the area selects from among the permitted work subjects and presses the work subject selection button 7.
Press , and then press confirmation button 8. At this point, since the device has completed the reading and work permit processing, it sends out the ID card to the ID card insertion slot 4 and the dosimeter to the dosimeter insertion slot 5. At the same time, door IB on the B region side is opened. At this point, the person entering the area enters Area B with an ID card and dosimeter. When a person enters Area B, Door 1B will be closed. Next, when the person entering the area completes the work in area B and exits and returns to area A, press the tatsuta switch 2B on door 1B from area B.
When the door 1B is opened, the user enters the device and stands on the Matsuto switch 3. Next, when the ID card and dosimeter on hand are inserted into the ID card insertion slot and dosimeter insertion slot 5, respectively, the ID card and dosimeter are transferred and enter the inside of the apparatus. Inside the device, the contents of the ID card and dosimeter are read. Here, the person entering the area selects and presses the access area from among the access area selection buttons 9, and then presses the confirmation button. The device performs a withdrawal judgment process and returns the ID card and dosimeter if the conditions are satisfied.
At the same time, door 1A on the A area side is opened. Here, visitors enter Area A with their ID cards and dosimeters. When a person enters Area A, Door 1A is closed.

[Problems that the invention aims to solve] In the process described above, conventionally, when the person entering the area finishes processing in the device and enters Area B (or Area A), he or she does not receive an ID card or a dosimeter. There were times when I made the mistake of entering Area B (or Area A). It is not advisable for management to enter Area B without carrying an ID card or dosimeter. Also, if the ID card or dosimeter remains in the device,
The next person wishing to enter the area may be confused when using this device, and more importantly, if they forget their dosimeter, they will not be able to manage their radiation exposure.

[Means for Solving the Problems] According to the present invention, the above purpose is to provide an entrance/exit control device installed at the entrance/exit of a radiation controlled area, into which a card and a dosimeter are inserted and processing operations are performed. A detector that detects the presence of a person entering the processing operation position of this device, and a detector that detects that at least one of the card returned after the processing operation or the dosimeter is present at the insertion position. This can be achieved by providing a detector, an alarm activated by signals from the detector, and a door which is also locked by these signals.

[Examples] Examples of the present invention will be described below. That is, the first
As shown in the figure, detectors (for example, photoelectric sensors) 11 and 12 are provided in the ID card insertion slot 4 and dosimeter insertion slot 5 of the device to detect the returned ID card and dosimeter. and detector 11,1
An alarm device (for example, a buzzer, etc.) 13 is provided which receives a signal from 2 and issues an alarm. and alarm 1
3 is configured in a circuit such that the detectors 11 and 12 detect a card, etc., and it is activated only when the mat switch 3 is in the off state, and when the alarm 13 is activated, the door 1B (or 1A )
is locked in the closed position. The operating state of such an entrance/exit control device is shown in a flowchart as shown in FIG. 2.

In the above-mentioned entrance/exit control device, the person entering the facility finishes operating the ID card, dosimeter, etc. inside the device, and attempts to leave the device with the ID card and dosimeter still in place by getting off the Matsuto switch and exiting the door. When the person attempts to leave, the detector goes into operation, detects the remaining ID card and dosimeter, and sends a signal to the alarm. This causes the alarm to issue an alarm, and the door from which the user attempts to exit is also locked in a closed state due to the detection signal, and the door is opened when the ID card or dosimeter is removed.

[Effects of the invention] As described above, according to the invention, when a person leaves the device, if a person leaves behind a card, etc., an alarm will be issued, so when the person realizes that he or she has left behind a card, etc., the door will open when he/she removes the card, etc. This has the advantage of preventing misplacement.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the entrance/exit control device, and FIG. 2 is an operational flowchart of the entrance/exit control device of the present invention. 11, 12: Detector, 13: Alarm.

Claims (1)

[Scope of utility model registration request] In an entrance/exit control device installed at the entrance/exit of a radiation controlled area, into which a card and a dosimeter are inserted and processing operations are performed, a detector detects the presence of a person entering the area at a processing operation position of the device; , a detector that detects the presence of at least one of the card or the dosimeter at the insertion position that has been returned after the processing operation, and an alarm that is activated by the detector and a signal from the detector. 1. An entrance/exit control device comprising: a door; and a door that is locked by the signal.