JPH07141584A - Nonfix detecting device - Google Patents

Abstract

PURPOSE:To provide a device capable of easily, normally and also simultaneously executing the measurement of a measurement object event in a wide range of area. CONSTITUTION:A detecting part 1 measuring the measurement object event, a position measuring part 2 measuring a self position and a communication part 3 transmitting information obtained in the detecting part 1 and the position measuring part 2 to an eternal part are integrally and hermetically sealed inside a container 6 so as to constitute the nonfix detecting device 10 by permitting the container 6 to float on water. At the time of measurement, the plural nonfix detecting devices 10 are thrown to the measurement water area. Thus, measurement data at plural measurement points in the wide range of area can be simultaneously obtained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for detecting non-fixed points by unmanned floating.

[0002]

2. Description of the Related Art Recently, the interest and anxiety of Japanese people, particularly the coastal fishermen of the Sea of Japan, has been increasing due to the marine pollution caused by the dumping of nuclear waste into the Sea of Japan by the Russian government. The Japanese government announced that no contamination was detected as a result of the investigation of radioactive contamination by the regulatory authorities. However, at present, a method for constantly observing the radiation dose over the ocean has not been developed. For this reason, the above-mentioned investigation of radioactive contamination was conducted only at a limited number of observation points within a certain period of time by a research vessel, etc., and is not conducted continuously over the entire Sea of Japan. It is not enough to eliminate the anxiety of the people.

[0003]

As described above,
At present, no method has been developed for constantly observing radiation dose over the ocean. That is, it is difficult to fixedly install the detection device over a wide area on the ocean. Further, if the detection device is composed of a floating body, the observation position moves due to the tidal current or wind, and it becomes impossible to determine at which observation point the data is detected. For this reason, when continuously and extensively observing on the ocean,
There is no choice but to rely on human tactics.

In view of the above points, an object of the present invention is to provide an apparatus capable of simply and constantly measuring the measurement target event in a wide range area.

[0005]

In order to achieve the above object, the present invention provides a detection unit for measuring an event to be measured, a position measurement unit for measuring its own position, and the detection unit and the position measurement unit. A non-fixed-point detection device is configured by integrally sealing a communication unit that transmits the obtained information in a container and floating the container in water.

[0006]

When the measurement is performed, a plurality of non-fixed point detection devices are dropped in the measurement water area. When there is a movement to move the non-fixed point detection device to the measurement water area like the tidal current of the ocean, the non-fixed point detection device is dropped from the upstream of the measurement water area continuously or intermittently. The dropped non-fixed point detection device is unmanned and floats in the measurement water area, the detection part of the non-fixed point detection device measures the measurement target event, and the position measurement part uses the wireless navigation system such as GSP or Laurent C to position itself. , And the communication unit transmits the information obtained by the detection unit and the position measurement unit to the outside.

A monitoring monitor provided on land or on the ocean receives the information transmitted from the non-fixed point detection device and accumulates the data. This data includes detection information as a result of measuring the measurement event and position information indicating a place where the measurement is performed. In this way, by simultaneously obtaining data from multiple non-fixed-point detectors that are widely distributed and suspended in the measurement water area, position information and measurement results at that position can be obtained simultaneously over a wide area of the measurement water area. You can

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An example of using the non-fixed point detection device of the present invention in a radiation management system on the sea will be described with reference to the drawings.
FIG. 1 shows a cross section of the inside of the non-fixed point detection device of this example. The non-fixed point detection device 10 is configured by housing a detection unit 1, a position measurement unit 2, a communication unit 3, a control unit 4, and a power supply unit 5 in a container 6.

The container 6 is hermetically sealed so that moisture does not enter therein, and is configured to float on water in a state where each part is housed. Each of the parts 1 to 5 housed in the container 6 is the container 6
Is placed on the water such that the center of gravity of the entire device is below the center of the device so that the vertical relationship between them is always kept constant. The detection unit 1 is arranged below the container 6,
The radiation sensor 7 is arranged outside the container 6 to measure radiation in seawater. The position measuring unit 2 is arranged on the upper portion of the container 6 and constantly supplements the positioning information by a wireless navigation system such as GSP or Laurent C. The communication unit 3 is arranged on the upper portion of the container 6, and the antenna 8 thereof is attached to project out of the container 6. The communication unit 3 performs bidirectional transmission / reception.

The control unit 4 causes the communication unit 3 to transmit the radiation dose measurement value obtained from the detection unit 1 and the position information obtained by the position measurement unit 2. In addition, the control unit 4 sets the cycle in which the detection unit 1 performs measurement, the cycle in which the communication unit 3 transmits, and the like. This setting condition can be set in advance or can be changed by an external command received by the communication unit 3. The power supply 5 supplies power to the detection unit 1, the position measurement unit 2, the communication unit 3, and the control unit 4.

FIG. 2 shows a marine radiation management system using the non-fixed point detection device of this example. Non-fixed point detection device 10
As shown in FIG. 3, each of the plurality of points is dropped in the dropping water area 14 upstream of the tidal current in the measurement water area 13, as shown in FIG. The plurality of non-fixed point detection devices 10 are unmanned floating in the measurement sea area due to tidal current, wind, etc., and are widely distributed in the measurement sea area. Then, the communication unit 3 transmits the position information of the non-fixed point detection device 10 obtained by the position measurement unit 2 and the radiation count value measured by the sensor 7 to the communication satellite 11.

The ground monitoring monitor 12 receives the information transmitted by the non-fixed point detection device 10 via the transponder (relay device: Ku band band or C band band) of the communication satellite 11, accumulates the data, and evaluates it. , Monitor. The ground monitor 12 can simultaneously obtain the measurement values at each observation point in the measurement sea area by simultaneously obtaining the information from the plurality of non-fixed point detection devices 10 widely distributed in the measurement sea area.

The non-fixed point detecting device 10 is recovered in the recovery area 15 shown in FIG. At the time of this collection, the position information transmitted by the non-fixed point detection device 10 is used, and the non-fixed point detection device 10 can be quickly found and collected. Although the embodiment of the present invention has been described above, the embodiment described above is only one embodiment, and the present invention can be variously modified within the scope of the claims.

For example, the measurement water area is not limited to the ocean, and a lake, a swamp, a river or the like can be used as the measurement water area. Further, the measurement target event is not limited to the radiation dose in seawater, and the present invention is applied to all detection targets that can be measured by seawater or water temperature, salt concentration, and other sensors operated by electric power. It is possible. further,
The communication method between the non-fixed point detection device 10 and the monitor 12 is not limited to the communication satellite, and any communication method can be used.

[0015]

According to the present invention, it is possible to obtain a non-fixed point detection device for measuring a wide range of measurement target events in a measurement water area easily and steadily at a plurality of observation points. Further, by managing the position information, the unmanned / floating non-fixed point detection device can be easily collected.

[Brief description of drawings]

FIG. 1 is a sectional view showing the inside of a non-fixed point detection device according to an embodiment of the present invention.

FIG. 2 is a block diagram of a marine radiation management system using the non-fixed point detection device of FIG.

FIG. 3 is a diagram for explaining a measurement sea area in the system of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Power supply part 2 ... Position measurement part 3 ... Communication part 4 ... Control part 5 ... Power supply 6 ... Sensor 7 ... Antenna 10 ... Non-fixed point detection device 11 ... Communication satellite 12 ... Ground monitoring monitor 13 ... Measurement area 14 ... Drop area 15 … Collection area

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[Procedure amendment]

[Submission date] November 25, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0006

[Correction method] Change

[Correction content]

[0006]

When the measurement is performed, a plurality of non-fixed point detection devices are dropped in the measurement water area. When there is a movement to move the non-fixed point detection device to the measurement water area like the tidal current of the ocean, the non-fixed point detection device is dropped from the upstream of the measurement water area continuously or intermittently. The dropped non-fixed point detection device is unmanned and floats in the measurement water area, the detection part of the non-fixed point detection device measures the event to be measured, and the position measurement part uses its own radio navigation system such as GPS or Laurent C. The position is always captured, and the communication unit transmits the information obtained by the detection unit and the position measurement unit to the outside.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0009

[Correction method] Change

[Correction content]

The container 6 is hermetically sealed so that moisture does not enter therein, and is configured to float on water in a state where each part is housed. Each of the parts 1 to 5 housed in the container 6 is the container 6
Is placed on the water such that the center of gravity of the entire device is below the center of the device so that the vertical relationship between them is always kept constant. The detection unit 1 is arranged below the container 6,
The radiation sensor 7 is arranged outside the container 6 to measure radiation in seawater. The position measuring unit 2 is arranged on the upper part of the container 6 and constantly supplements the positioning information by a wireless navigation system such as GPS or Laurent C. The communication unit 3 is arranged on the upper part of the container 6, and the antenna 8 thereof is attached so as to project to the outside of the container 6. The communication unit 3 performs bidirectional transmission / reception.

Claims (1)

[Claims] 1. A detection unit that measures an event to be measured, a position measurement unit that measures its own position, and a communication unit that transmits the information obtained by the detection unit and the position measurement unit to the outside. A non-fixed point detection device, which is capable of performing non-fixed point detection by unmanned / floating by sealing the inside of a container and floating the container in water.