JPS6367674B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is a gate monitor installed at the boundary between a radiation controlled area and a non-radiation controlled area to measure the presence or absence of radioactive contamination of a person attempting to exit the radiation controlled area. The present invention relates to a measurement remaining time display device for a gate monitor that displays the remaining time necessary for the measurement currently being performed for the next waiting person to be measured, when a person is currently being measured.

Conventionally, a person attempting to use a gate monitor would only be shown by indicator lamps whether or not the gate monitor is currently in use or available for use; For those who waited, they were unsure of their own waiting time, and although the actual waiting time was usually around 20 seconds, psychologically it often felt like it was longer than it actually was. This placed a psychological burden on the subject and became an obstacle to proper radiation measurement management.

The present invention has been made in view of the above-mentioned circumstances, and it displays the remaining time that the next person to be measured must wait when the previous user is in the process of measuring. The present invention provides a measurement remaining time display device for reducing the psychological burden during waiting.

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the structure of an embodiment of a measurement remaining time display device for a gate monitor according to the present invention. In the figure, 1 is a computer, 2 is a storage device, 3 is an input/output selection device, 4 is a housing detection device, 5 is a measuring table detection device, 6 is an ID card detection device, 7 is a hand detection device, and 8 is a radiation Detection device, 9 is an exit detection device, 10 is an output device, 11 is a measurement remaining time indicator,
12 is a usable indicator lamp.

The enclosure detection device 4 is provided at the entrance of the gate monitor, and detects that the person to be measured has entered the gate monitor from the radiation controlled area. The measurement table detection device 5 detects that the person to be measured stands on the measurement table of the gate monitor. The ID card detector 6 detects that the person to be measured who is standing on the measurement stand inserts an ID card into the card insertion slot. The hand detection device 7 uses the ID of the person being measured.
After inserting the card, it is detected that both hands are inserted into predetermined measurement pockets. Radiation detection device 8
The measurement starts when the person being measured inserts their hand into the measuring pocket, and the radioactivity of each part of the person being measured is detected, such as the head, hands, torso, legs, and soles of the feet. It consists of a radiation detector. The exit detection device 9 detects that the subject who has completed the measurement has exited from the gate monitor. The input/output selection device 4 is the computer 1
is controlled to select signals from each of the detection devices and input them to the computer 1. The measurement remaining time indicator 11 and the usable indicator lamp 12 are provided outside the casing on the gate monitor entrance side. Output device 1
0 is controlled by the computer 1 and outputs corresponding signals to the measurement remaining time indicator 11 and the usable indicator lamp 12, respectively.

Now, the first action is to enter the person to be measured, the second action is to rise to the measuring table, the third action is to insert the ID card,
The fourth action is the insertion of the hand, the fifth action is the detection of radioactivity in each part of the body, and the sixth action is the exit from the gate monitor.The standard time required to perform each action is (T ₁ ), (T ₂ ).
When (T ₆ ) is determined, the total scheduled time (T ₀ ) required for measurement is determined as the sum of T ₁ to T ₆ .
That is, T ₀ =T ₁ +T ₂ +T ₃ +T ₄ +T ₅ +T ₆ . A bar graph in FIG. 2 shows this. When the first operation ends in an elapsed time (t ₁ ) shorter than its standard time (T ₁ ), as shown in B in Figure 2, the elapsed time (t ₁ ) is subtracted from the total scheduled time (T ₀ ). T ₀ −t ₁ ) is the remaining measurement time, but in reality, as shown in C in Figure 2,
Since the operation was completed earlier than planned and moved on to the next second operation, the time required for subsequent measurements is the sum of the standard times after the second operation (T ₀ − T ₁ ).
become. Therefore, in such a case, the present invention decides to display this (T ₀ −T ₁ ) as the remaining measurement time. In addition, if the second operation does not end even after the standard time (T ₂ ) of the second operation shown in C in FIG. We return to the sum of times (T ₀ −T ₁ ) and decide to display this as the remaining measurement time.

A flowchart of the present apparatus based on the above rules is shown in FIG. The operation of this apparatus will be described below with reference to the flowchart shown in FIG.

[1] The computer 1 instructs the input/output selection device 3 to cause the enclosure detection device 4 to detect the presence or absence of a person to be measured who has entered the enclosure. At the same time, the ready-to-use indicator lamp 12 is turned on, and this standby state is maintained until the person to be measured enters the housing.

[2] When a person to be measured enters the gate monitor in this standby state (first operation), a signal indicating that a person has entered the enclosure is input from the enclosure detection device 4 to the computer 1, and the computer 1 reads the information from the storage device 2. The total scheduled time (T ₀ ) after the start of the first operation is read out and displayed on the measurement remaining time display 11 via the output device 10. At the same time, the usable indicator lamp 12 is turned off, and the elapsed time counter is reset to display the time. Start counting. Furthermore, at the same time, a command is given to the input/output selection device 3 to switch the signal from the measurement platform detection device 5 so that it is input to the computer 1.

[3] The calculator 1 continues calculating the remaining measurement time (T ₀ - t _{1 ) by subtracting the elapsed time (t 1 )} from the total scheduled time (T ₀ ), and outputs this remaining measurement time to the output device 1.
0 on the measurement remaining time display 11 every moment.

[4] In the operation of paragraph (3), if the standard time (T ₁ ) of the first operation has elapsed and the second operation (rising to the measurement platform) does not proceed, the computer 1, for example,
Measure the total scheduled time (T ₀ ) after starting the first operation again after a delay of 0.1 seconds Remaining time display 11
At this point, the elapsed time counter is reset and the time count is restarted.

[5] In the operation described in paragraph 3, the measurement platform detection device 5
When a signal detecting rising to the measurement platform (second operation) is input, the computer 1 reads the scheduled time (T ₀ - T ₁ ) after the start of the second operation from the storage device 2, and outputs it to the output device. At the same time, the elapsed time counter is temporarily reset and time counting is restarted. Furthermore, at the same time, the input/output selection device 3 is instructed to switch so that the signal from the ID card detection device 6 is input to the computer 1.

[6] Calculator 1 calculates the scheduled time (T ₀
-T ₁ ) minus the elapsed time (t ₂ ) to obtain the remaining measurement time {T ₀ - (T ₁ + t ₂ )}.
This measurement remaining time is displayed moment by moment on the measurement remaining time display 11 via the output device 10.

[7] In the operation described in Section 6, if the standard time (T ₂ ) of the second operation does not proceed to the third operation (inserting the ID card), the computer 1, for example,
After a delay of 0.1 seconds, measure the scheduled time (T ₀ - T ₁ ) after starting the second operation again. Remaining time indicator 1
At this point, the elapsed time counter is reset and the time count is restarted.

[8] In the operation of Section 6, when a signal detecting the insertion of an ID card (third operation) is input from the ID card detection device 6, the computer 1 stores the schedule after starting the third operation from the storage device 2. Time {T ₀ − (T ₁ +
T ₂ )} is read out and displayed on the measurement remaining time display 11 via the output device 10, and at the same time, the elapsed time counter is temporarily reset and time counting is restarted. Furthermore, at the same time, the input/output selection device 3 is instructed to switch so that the signal from the hand detection device 7 is inputted to the computer 1.

[9] Calculator 1 calculates the scheduled time after the start of the third operation {T ₀
- (T ₁ + T ₂ )} by subtracting the elapsed time (t ₃ ) to obtain the remaining measurement time {T ₀ - (T ₁ + T ₂ + t ₃ )}, and output this remaining measurement time to the output device 10. The remaining measurement time is displayed on the display 11 from time to time.

[10] In the movement described in paragraph 9, the fourth movement (hand insertion) may not be performed even after the standard time (T ₃ ) of the third movement has elapsed.
If the computer 1 does not move to the next step, the calculator 1 measures the scheduled time after the start of the third operation {T ₀ −(T ₁ +T ₂ )} again after a delay of 0.1 seconds, for example, and displays the remaining time indicator 1.
At this point, the elapsed time counter is reset and the time count is restarted.

[11] In the operation of Section 9, when a signal detecting hand insertion (fourth operation) is input from the hand detection device 7, the computer 1 stores the scheduled time after the start of the fourth operation from the storage device 2. {T ₀ -(T ₁ +T ₂ +T ₃ )} is read out and displayed on the measurement remaining time display 11 via the output device 10, and at the same time, the elapsed time counter is reset once and the time count is restarted. Furthermore, at the same time, the input/output selection device 3 is instructed to switch so that the signal from the radiation detector device 8 is input to the computer 1.

[12] Calculator 1 calculates the scheduled time after the start of the fourth operation {T ₀
- (T ₁ + T ₂ + T ₃ )} by subtracting the elapsed time (t ₄ ) to obtain the remaining measurement time {T ₀ - (T ₁ + T ₂ + T ₃ + t ₄ )}, and then calculate this remaining measurement time. is displayed moment by moment on the measurement remaining time display 11 via the output device 10.

[13] In the operation described in paragraph 12, if the standard time (T ₄ ) of the fourth operation does not proceed to the fifth operation (detection of radioactivity in each body part), the computer 1
For example, after a delay time of 0.1 seconds, the scheduled time after the start of the fourth operation {T ₀ −(T ₁ +T ₂ +T ₃ )} is displayed again on the measurement remaining time display 11, and
At this point, the elapsed time counter is reset once and time counting is restarted.

[14] In the operation of paragraph 12, the radiation detection device 8
When a signal indicating that radioactivity has been detected in each body part (fifth operation) is input, the computer 1 stores from the storage device 2 the scheduled time after the start of the fifth operation {T ₀ - (T ₁ +T ₂ +T ₃ +T ₄ )},
At the same time, the remaining measurement time is displayed on the measurement remaining time display 11 via the output device 10, and at the same time, the elapsed time counter is reset and the time count is restarted. Furthermore, at the same time, the input/output selection device 3 is instructed to switch so that the signal from the exit detector 9 is input to the computer 1.

[15] Calculator 1 calculates the scheduled time after the start of the fifth operation {T ₀
- (T ₁ + T ₂ + T ₃ + T ₄ )} - Subtract the elapsed time (t ₅ ) to get the remaining measurement time {T ₀ - (T ₁ + T ₂ + T ₃ + T _{4 )}
+t ₅ )}, and the remaining measurement time is sent to the measurement remaining time display 11 via the output device 10.
displayed from time to time.

[16] In the operation described in paragraph 15, if the standard time (T ₅ ) of the fifth operation does not proceed to the sixth operation (exit from the gate monitor), the computer 1
For example, is the scheduled time after starting the fifth operation after a delay time of 0.1 seconds {T ₀ − (T ₁ +T ₂ +T ₃ +
T ₄ )} is displayed on the measurement remaining time display 11, and at this point, the elapsed time counter is once reset and the time count is restarted.

[17] In the operation of Section 15, when the signal indicating that the subject has left the gate monitor from the exit detection device 9 (sixth operation) is input, the computer 1 performs measurement via the output device 10. At the same time, the remaining time indicator 11 is made to display zero and the usable indicator lamp 12 is turned on, returning to the standby state as described in item 1.

[18] The next person scheduled to be measured must use the available indicator lamp 1.
Enter the gate monitor when 2 lights up. Thereafter, the operations from the second term onward are repeated.

As described above, in the gate monitor remaining measurement time display device according to the present invention, when no one is using the device, the available indicator lamp 12 lights up to indicate to the person scheduled to be measured that they may enter the gate monitor. .
When a person to be measured enters the enclosure, as the measurement operation progresses, the remaining measurement time until the end of the current measurement is displayed moment by moment on the measurement remaining time display 11, so that the next person to be measured who is waiting is displayed. The person making the appointment can know how long he or she will have to wait, eliminating the "frustration" he feels when he does not know how long he will have to wait. Therefore, the psychological burden on those waiting is reduced, and radiation measurement management can be carried out smoothly and appropriately.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of a measurement remaining time display device for a gate monitor according to the present invention;
Figure 2 is a bar graph for explaining the relationship among the scheduled time, elapsed time, and remaining measurement time on the remaining measurement time display device of the gate monitor in Figure 1, and Figure 3 is the remaining measurement time of the gate monitor in Figure 1. It is a flowchart of a display device. 1... Computer, 2... Storage device, 3... Input/output selection device, 4... Enclosure detection device, 5... Measuring table detection device, 6... ID card detection device, 7... Hand detection device , 8... Radiation detection device, 9... Exit detection device, 10... Output device, 11... Remaining measurement time indicator, 12... Usable indicator lamp.

Claims (1)

[Claims] 1. An entry detection device that detects when a person enters the gate monitor from a radiation controlled area, a measurement table detection device that detects when the person rises onto the measurement table, and a device that detects the person entering the gate monitor. Detect ID card insertion
An ID card detection device, a hand detection device that detects insertion of the hand into the hand measurement position by the person being measured, and radiation from each part of the person's body by the radiation detection device consisting of a plurality of radiation detectors. A radiation detection device that outputs a signal indicating that radioactive contamination measurement is being performed, and an exit gate that is opened when radioactive contamination is below a predetermined value to indicate that the subject has left the uncontrolled area. A device attached to a gate monitor equipped with an exit detection device that detects and outputs a signal, the device includes a computer, a storage device thereof,
an input/output selection device that is controlled by the computer and inputs signals from each of the detection devices to the computer; and an input/output selection device that is installed on the entrance side of the gate monitor and is controlled by the computer via an output device to select which of the detection devices. a measurement remaining time display that momentarily displays the remaining time required for measurement in response to whether a detection signal from the detection device is input to the computer; an available indicator lamp that is controlled and lights up only from the time when the detection signal from the exit detection device is input to the computer until the detection signal from the enclosure entry detection device is input to the computer; The remaining measurement time display device for the gate monitor.