JP2000018982A - System and sensor for detection of movement of soil and stone, dropping control device for coordinate positioning apparatus and dropping-type coordinate positioning apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a system and an apparatus which can be installed easily and in which the movement of soil and stone can be surely detected. SOLUTION: A plurality of GPS terminal devices 11, which position their installation coordinates are installed, and a wire 12 is connected in series with the GPS terminal devices 11 so as to be electrified from a repeater 13 which is installed in a safe location. The GPS terminal device 11 detect the movement of the coordinates due to the movement of soil and stones, so as to be transmitted to a base station 16. In addition, when the wire 12 is cut due to the movement of the soil and stone, its cutting is detected by the repeater 13, and a cut point 15 is specified.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a debris movement detection method for detecting the movement of debris such as debris flow, a debris movement detection sensor, a coordinate positioning device dropping control device, and a drop type coordinate positioning device.

[0002]

2. Description of the Related Art Japanese terrain has many mountainous parts, many points forming complex terrain, and is characterized by the fact that debris flows frequently occur due to long-term rainfall. Once the debris flow occurs, the debris flow flows at high speed to the downstream area, and downstream residents may be trapped in the debris flow without refuge and lose precious lives.

In order to prevent debris flow, measures have been taken to prevent a debris flow from flowing downstream by constructing a sabo dam at a dangerous location. When constructing the sabo dam, it is designed with sufficient margin so that even if a large debris flow occurs, the debris flow can be stopped.

[0004] However, natural threats have sometimes overwhelmed even such sabo dams and swallowed downstream areas. The cause of long-term rainfall changes in the debris flow-prone area and how the debris flow is linked to debris flow has not yet been clarified, and large-scale debris flow disasters occur in some parts of Japan every year. This is the current situation.

Therefore, conventionally, a debris flow detection method as shown in FIG. 60 has been used in a debris flow occurrence danger area (Japanese Patent Publication No. 3-9247).

That is, the optical fiber piles 253 are driven at predetermined intervals into the ground 250 where the debris flow is to be detected, and one optical fiber 2 is sequentially placed between the operation boxes 255 at the upper end.
54 through. Further, an invar wire stake 251 in which the invar wire 252 is drawn out from the operation box 255 and driven into the drawer separately.
Connect to

When a debris flow occurs on the ground 250 and the optical fiber pile 253 is flushed, the stopper 262 inside the operation box 255 is disengaged from the column 258, and the upper and lower rollers 256, 257 are constantly urged as shown in FIG. The optical fiber 25 is rotated by the columns 258 and 259.
4 is locally bent. Alternatively, as shown in FIG.
54 is cut.

[0008] The local bending or cutting of the optical fiber 254 sharply reduces the intensity of the backscattered light and causes a step in the output characteristic line. Then, along with the debris flow occurrence time,
The debris flow generation location can be detected from the round trip time to the step of the light pulse.

[0009]

In the above-mentioned conventional system, both the optical fiber 254 and the invar line 252 must be laid. Also, since the upper end of the optical fiber pile 253 is exposed above the ground, the optical fiber 254 cannot be embedded underground. Sometimes cut. Further, since mechanical parts are provided in the operation box 255, there is a possibility that the operation box 255 will not work due to rust if left for a long time.

If a debris flow has already occurred, there is a risk that the debris flow will occur again in a short time in the corresponding area, and it is necessary to detect the occurrence of the debris flow urgently. However, since there is a danger of secondary disaster for some time, people cannot enter, and the method of laying the optical fiber 254 and the invar wire 252 as in the conventional method cannot be used. Therefore, it was not possible to properly observe how the debris flow changes.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has a debris movement detection method, a debris movement detection sensor, a coordinate positioning device dropping control device, which is easy to install and can reliably detect the movement of debris. And a drop-type coordinate positioning device.

[0012]

According to a first aspect of the present invention, there is provided at least one coordinate positioning device for receiving a radio wave from an artificial satellite and positioning the coordinates by, for example, a GPS method. By detecting that the installed coordinates have moved, in the debris movement detection method of detecting the movement of debris, for example, from a predetermined device installed in a place where there is no danger of collapse to at least one coordinate positioning device And means for supplying power by connecting the wires in series, and means for specifying the location or section of the cut by a predetermined device when the wire is cut by the movement of debris.

With such a configuration, it is possible to use both the detection of the movement of the debris by the movement of the coordinate positioning device and the detection of the movement of the debris by cutting the wire.

According to a second aspect of the present invention, for example, a GPS
According to the method, at least one coordinate positioning device that receives radio waves from artificial satellites and measures coordinates is installed, and movement of the debris is detected by detecting that the coordinates where the coordinate positioning device is installed have moved. In the debris movement detection method, for example, a signal line is connected in series from a predetermined device installed at a place where there is no risk of collapse to at least one coordinate positioning device, and coordinate positioning is performed on the predetermined device. Means for transmitting the movement state of the coordinates where the equipment is installed,
Means for specifying a location or section to be cut by a predetermined device when the signal line is cut by the movement of debris.

According to such a configuration, detection of the movement of the debris by the movement of the coordinate positioning device and detection of the movement of the debris by the wire cutting can be used together. Also,
By transmitting the movement state of the coordinates to a predetermined device by wire, power consumption in the coordinate positioning device can be reduced.

The present invention according to claim 3 is, for example, a GPS
According to the method, at least one coordinate positioning device that receives radio waves from artificial satellites and measures coordinates is installed, and movement of the debris is detected by detecting that the coordinates where the coordinate positioning device is installed have moved. In a debris movement detection method, a secondary battery provided in each of at least one coordinate positioning device, and a wire from a predetermined device installed in a place where there is no risk of collapse to at least one coordinate positioning device, for example. Means for connecting and supplying power in series and charging a secondary battery, means for specifying a location or section to be cut by a predetermined device when a wire is cut by movement of debris, and accumulation of a predetermined device When the power decreases to a predetermined value, for example, when a state where only the amount necessary for detection by wire cutting is reached is reached, the power supply from the predetermined device to the coordinate positioning device is stopped. , The given device detects the movement of debris only cutting the wire, the coordinate positioning device is characterized by comprising a means for controlling to positioning by the electric power from the secondary battery.

With this configuration, even when the power stored in the predetermined device decreases, the storage capacity of the battery of the predetermined device and the coordinate positioning device is maximized, and the debris is continuously moved by moving the coordinate positioning device. The detection of the movement and the detection of the movement of the debris by the wire cutting can be performed in combination.

According to a fourth aspect of the present invention, there is provided a debris movement detection sensor according to the present invention, wherein a pile having a hollow portion filled with oil, means for measuring an increase in oil due to a volume change in the hollow portion, and Means for measuring the outflow.

With this configuration, it is possible to quantitatively detect the movement of debris underground.

According to a fifth aspect of the present invention, there is provided a debris movement detection system according to the present invention. Are connected in series, and the power supply line is superimposed on the power supply line, and a signal related to the movement of the debris detected by the debris movement detection sensor is transmitted to a predetermined device. Means for specifying the location or section of the cut by a predetermined device when the cut is made.

With this configuration, it is possible to use both the detection of the movement of the debris by the debris movement detection sensor and the detection of the movement of the debris by cutting the wire. In addition, the power supply line can be used in combination as a signal line.

According to a sixth aspect of the present invention, there is provided a coordinate positioning device dropping control device capable of storing a coordinate positioning device for receiving a radio wave from an artificial satellite and positioning coordinates, and photographing a surrounding scenery. Protective cover having a camera, means mounted on the flying object and displaying an image taken by the camera, means for lowering the protective cover and controlling the coordinate positioning device to drop from a predetermined height to the ground. It is characterized by having.

With such a configuration, the coordinate positioning device can be dropped to an appropriate position while preventing damage.

According to a seventh aspect of the present invention, in the coordinate positioning device dropping control device according to the sixth aspect, the protective cover includes means for measuring a distance to the ground by an ultrasonic sensor. It is characterized by.

With this configuration, when the coordinate positioning device is dropped, the height from the ground can be easily measured, and the coordinate positioning device can be dropped from the optimum height.

The present invention according to claim 8 is the coordinate positioning device drop control device according to claim 6, wherein a balloon filled with buoyancy gas is connected to the coordinate positioning device by an antenna line. I do.

According to such a configuration, it is possible to land without giving a shock to the coordinate positioning device. In addition, since the length of the antenna line can be increased, the coordinate positioning device can communicate with another device at a low frequency after landing.

According to a ninth aspect of the present invention, there is provided a coordinate positioning device dropping control device capable of storing a coordinate positioning device for receiving a radio wave from an artificial satellite and positioning coordinates, and photographing a surrounding scenery. A protective cover having a camera, means for lowering this protective cover from the flying object, and when the height reaches a predetermined height from the ground, the coordinate positioning device is landed on the ground using a cord from the protective cover, and after landing. Perform communication with a predetermined device, remove the cord from the protective cover if communication is possible, and install the coordinate positioning device on the ground.If communication is not possible, wind up the cord and collect the coordinate positioning device on the protective cover. And means for performing such control.

With this configuration, when communication with a predetermined device cannot be performed after landing, the coordinate positioning device can be collected and landed again at a place where communication can be reliably performed.

According to a tenth aspect of the present invention, there is provided a drop-type coordinate positioning device comprising: means for receiving a radio wave from an artificial satellite to measure coordinates; and means for vertically pointing an antenna when the antenna falls on the ground. It is characterized by having.

With this configuration, no matter what direction the drop-type coordinate positioning device is inserted into the ground, the antenna is oriented vertically so that communication with other devices can be reliably performed. .

[0032]

Embodiments of the present invention will be described below in detail with reference to the drawings. In the following drawings, the same symbols indicate the same or corresponding parts.

FIG. 1 shows a schematic configuration of an embodiment of the present invention. The GPS terminal 11 in which the pile and the GPS detector are integrated is embedded at a plurality of points in the collapse area. Then, each GPS terminal 11 is connected by a wire 12. The end of the wire 12 is guided to a repeater 13 installed on the middle side.

Here, the repeater 13 is relatively close to the collapse area, but is installed in a safe place where there is no possibility of collapse. Power is supplied from the repeater 13 to each GPS terminal 11 through the wire 12. The repeater 13 has a solar battery and a spare battery. On the day when the sun is shining, power is generated by the solar battery, and power is supplied to the repeater 13 and the GPS terminal 11. Then, the surplus power is charged in the battery in the repeater 13.

The repeater 13 has a transmission / reception unit (not shown), and a landslide occurs in the collapse area,
Rolls and the wire 12 is cut at the cutting point 15, the repeater 13 detects the cutting of the wire 12 and the cutting point 15, and sends the cutting point 15 to the base station 16 through the antenna of the repeater 13.

The base station 16 is installed in a safe place such as a mountaintop with a good view. An antenna is mounted on the base station 16 to receive radio waves from the repeater 13 and transmit the received information to an observation center at the foot of the base station. 17 to be transmitted.

On the other hand, each GPS terminal 11 installed in the collapsed area receives a radio wave from a known artificial satellite and
The latitude and longitude of the place where the terminal device 11 is installed are calculated, and the result is periodically transmitted to the base station 16. Then, the latitude and longitude of the installation location of each GPS terminal 11 are transmitted from the base station 16 to the observation center 17. When the installation positions of some GPS terminals 11 move due to debris flow, landslides, etc. in the collapsed area, the observation center 17 sends the position information of the GPS terminal 11 before the movement and the moved GPS terminal. The landslide is detected by comparing the position information of the vessel 11. And the GP that moved
From the position information of the S terminal 11, it is possible to detect where the landslide has occurred.

That is, if the wire 12 is cut by a landslide, a detection section is estimated by a detection method based on the cutting of the wire 12, and the wire 12 is not cut by the landslide.
When the installation location of the S terminal device 11 moves, the landslide area is estimated based on the movement displacement.

In the above description, data collected by the repeater 13 such as the movement state of the GPS terminal 11 is transmitted to the observation center 17 through the base station 16. However, if the repeater 13 is installed in a place with a relatively good view and wireless communication with the observation center 17 is possible, direct communication between the repeater 13 and the observation center 17 may be performed.

When the collapse area extends over a plurality of points, a plurality of wires 12 may be branched from one repeater 13 and a GPS terminal 11 may be connected to each wire 12. In addition, when there are a plurality of collapse zones and each collapse zone is separated, a plurality of repeaters 13 are also installed separately,
The wire 12 may be connected from each repeater 13, and the GPS terminal 11 may be connected to each wire 12. In short, the above-mentioned flexible observation configuration may be set according to the actual topography of the collapse danger zone.

Here, the GPS terminal 11 measures the position information.
Differential GPS method (DGPS method)
Call it an expression. ). DGPS method is fixed G
The exact latitude at the PS base station, here base station 16
And longitude (N, E) are observed in advance. And one time
Latitude and longitude (N_X,
E_X) And the exact latitude and longitude errors are calculated. You
That is, (△ N, △ E) = (N, E) − (N_X, E_X)When
Then, the latitude and longitude observed by a certain GPS terminal 11
(N_B, E_B) Plus the above error, the GPS terminal
The exact latitude and longitude of the vessel 11 are calculated. Ie accurate
Latitude and longitude are (N_A, E_A) = (N_B, E _B) Ten
(△ N, △ E).

Here, as a premise, when an observation is made in a specific area, an error factor due to the influence of the ionosphere and the atmosphere and an error due to SA (an inherent error added to a general GPS terminal) are almost eliminated. It is assumed that the distribution is uniform.

FIG. 2 shows a schematic configuration in a case where the repeater 13 and the GPS terminal 11 are connected by a wire 12.

The repeater 13 is composed of a main body 21 in which control devices are housed, a solar cell 22, and an antenna 23. Then, the wire 12 is connected to the GPS terminal 1 from the main body 21.
Led by one. The GPS terminal 11 is a GPS controller 4
1 and the pile 42 are integrated. And the pile 42
Is embedded in the ground 19 of the collapse area, and each GPS terminal 1
Numerals 1 are connected by wires 12, and power is supplied from a repeater 13.

FIG. 3 shows that the wire 12
Is not disconnected, but the GPS terminal 11 is moved.

That is, the wires 12 are provided with some slack for protection of the wires themselves and connect the GPS terminals 11 to each other. Therefore, from the point a to the point b due to landslide
Even if the wire 12 moves, the wire 12 may not be cut due to a short moving distance. In this case, the movement displacement between the point a and the point b is checked by the DGPS method, and the accurate coordinate displacement is calculated.

FIG. 4 is an exploded view of each part of the GPS terminal 11. There is a protrusion 43 on the top of the stake 42, GPS
The circuit section 44 is attached to the projection 43. Above the GPS circuit section 44, the base station 16 and the GPS
An antenna 45 for transmitting and receiving to and from an artificial satellite is attached. Then, after the GPS circuit unit 44 is attached to the projection 43, the GPS circuit unit 44 is entirely covered with a cover 46.
Is protected. The cover 46 is made of a material that is not easily crushed by debris flow or the like, and that has little attenuation of radio waves. Also, the pile is not easily damaged by debris flow and is made of hard plastic suitable for mass production.

There is a hole in the upper part of the stake 42 through which the wire 12 passes.
Is supplied to

FIG. 5 and FIG. 6 show a modification of the GPS terminal 11.

FIG. 5 shows a GPS terminal 11 having a tall stake.
In the example of the above, a pile 47 as a joint is
It is embedded in 3 and connected. The GPS control unit 41 is attached to the uppermost stake 47, and the wire 12 is connected thereto. In this way, a tall GPS terminal can be configured by connecting the stakes of the GPS terminal as modules.

FIG. 6 shows that the pile 42 itself is thick and strong. This pile is used when the scale of the debris flow is large in the collapse area and the pile 42 is immediately broken.

Next, an example in which a pile is embedded in a collapsed area will be described.

FIG. 7 shows an example in which the wire 12 is embedded in the ground. That is, the wire 12-1 and the wire 12-
The second section of wire 12 is embedded in the ground.
And point b is relayed only by the pile 42. Wire 1
The area into which the wire 12 is embedded is less likely to collapse, and is intended to be embedded under the ground so that the wire 12 is not cut such as a place where a mountain road is crossing or a place where animals frequently pass.

FIG. 8 shows that the wire 12 is embedded under the ground, but there is a risk of landslide.
This is an example in which the GPS controller 41 is exposed on the ground for detecting a landslide by increasing the length of the GPS control unit 2.

FIG. 9 shows an example in which a GPS terminal 11 is installed in a forest area. Since the tree 48 blocks radio waves, if the GPS terminal 11 is short, it may not be possible to communicate with the base station 16 or the artificial satellite. Thus, in this example, the GPS terminal 11 is raised to avoid surrounding obstacles. Here, the wire 12 is laid at a height slightly above the ground, and the wire 1
2 enables landslide detection.

FIG. 10 is a diagram showing the configuration of the repeater 13. The power generated by the solar cell 22 is input to a DC-DC converter 25 through a diode 24 for isolation. Further, the repeater 13 has a secondary battery 26, and charges the power of the solar battery 22 to the secondary battery 26, and
The secondary battery 26 controls the DC-DC converter 25 to generate a plurality of power supplies 27 necessary for the entire repeater 13.

Here, as a method for charging the secondary battery 26, a floating charging method is employed. When power is supplied from the solar battery 22, the secondary battery 26 must always be maintained in a fully charged state. For this reason, it does not become overcharged,
It is necessary to charge the battery with a constant voltage so that a small charging current that appropriately compensates for self-discharge flows into the secondary battery 26. The charge / discharge controller 28 controls the voltage of the secondary battery 26 as feedback for the above purpose so that an appropriate voltage is supplied from the solar battery 22 to the secondary battery 26.

The state where the power supply from the solar battery 22 is interrupted, the secondary battery 26 is not charged, the secondary battery 26 gradually discharges, and the power supply capability decreases is considered to be a state in which the A / D converter It is digitized at 29 and input to the control unit 30 for monitoring. Then, the power supply capacity of the repeater 13 is about to disappear and the base station 1 is in an emergency.
6 can be notified.

Communication with the base station 16 is performed by the transmission / reception unit 31. The antenna 23 is an antenna that relays radio waves transmitted and received from the transmission / reception unit 31. The current measuring unit 32 is G
This is a circuit for measuring the current value of the power supply 33 supplied to the PS terminal 11. A short circuit occurs between the GND and the power supply 33 side somewhere on the wire 12 laid to supply power to the GPS terminal 11, and the current measurement unit 32
When the overcurrent is measured by the control unit 30, the relay (L1) 34 is operated under the control of the control unit 30, and the power supply 33
It is cut off from.

FIG. 11 is a diagram showing the configuration of the GPS terminal 11. Power supply 51 supplied from repeater 13
Is converted into a plurality of power supplies by the DC-DC converter 52. The GPS calculation unit 53 calculates the latitude and longitude where the GPS terminal 11 itself is installed from the calculation data received from the artificial satellite. The antenna 54 and the transmission / reception unit 55 receive data necessary for coordinate calculation from communication with the base station 16 or an artificial satellite. The control unit 56 controls the entire GPS terminal 11.

Further, a debris flow occurs, and the power supply 33 to a certain GPS terminal 11 is not cut off. However, a debris flow is applied, a radio wave of an artificial satellite cannot be received, and communication with the base station 16 cannot be performed. There is also. In this case, the base station 16 does not know whether the corresponding GPS terminal 11 has failed or is due to the occurrence of debris flow. However, the base station 16 first informs the observation center 17 that the relevant GPS terminal 11 cannot communicate. I do. The observation center 17 can detect that a debris flow may have occurred in the vicinity of the GPS terminal 11.

FIG. 12 shows a power supply connection system when a repeater 13 and a plurality of GPS terminals 11 (11-1, 11-2,..., 11-m) are connected in series by wires 12. FIG. The relay (L1) 34 of the repeater 13 is in the ON state, and the secondary battery 26 is connected to the DC-DC converter 52 as the power supply of each GPS terminal 11. Then, when the GPS terminal 11 connected to the wire 12 is in a standby state, that is, when a constant current is flowing, the current measuring unit 32 of the repeater 13 measures how much current flows as a whole, The controller 30 is notified of the current value (see FIG. 10).

Here, when the wire 12 is cut at the cut point 57, the GPS terminal 1 after the cut point 57
Since no current flows through 1, the current measuring unit 32 can detect the change in the current value and at the same time detect the cut point 57 from the current value. However, in the standby state, each GPS terminal 1
Since a large current does not flow through 1, even if the wire 12 is cut in the middle, the current does not greatly decrease in the wire 12, and a large change is obtained by the current measuring unit 32 between the normal state and the abnormal state of the wire 12 cut. Therefore, accurate current measurement may not be obtained.

Therefore, each GPS is periodically transmitted from the base station 16.
The terminal device 11 is set to the transmission state at once, and the current flowing through the wire 12 is increased by increasing the current consumption. In this state, when the current is measured by the current measuring unit 32, the difference in current value between the case where the middle of the wire 12 is not cut and the case where the wire 12 is cut is large.
It can be accurately estimated whether or not the first and subsequent wires 12 have been cut.

Further, when the wire 12
When a short circuit occurs on the ND side, current flows mainly in a closed circuit including only the resistance of the wire 12 itself. The current measurement unit 32 measures the current value in the same manner as described above, calculates the length of the wire 12 from the current value measured by the current measurement unit 32 from the current value of the closed circuit formed by the wire 12 in unit length, The point 58 is estimated. Here, when a short circuit occurs on the wire 12,
Since the current flowing on the wire is large, the control unit 30 immediately activates the relay (L1) 34 upon completion of the measurement,
It is turned off so that no current flows from the repeater 13 to the GPS terminal 11.

FIG. 13 is a diagram showing a circuit example of the current measuring section 32. When a current flows through the minute resistor (Rs) 35 which does not affect the closed circuit through which the current flows, the resistor (Rs) 3
5, a voltage is generated across both ends. This voltage is amplified by the balanced analog amplifier circuit OP1, further amplified by OP2, converted into a digital value by the A / D converter 36, and input to the controller 30, whereby the current value is measured. In the circuit of FIG. 13, the circuit of the balanced analog amplifier circuit OP1 is GN because of the balanced circuit.
D is not affected by unbalanced current or the like.

FIG. 14 is a graph showing the discharge characteristics of the secondary battery 26. When the secondary battery is charged to the maximum, the discharge characteristic is at point a. If the stored power is consumed without being charged, the power is lost when approaching point b and finally reaching point c. Then, this discharge characteristic is changed to A / D
It is monitored by the conversion unit 29. If the solar battery 22 is not generated and the secondary battery 26 is not charged over a long period of rainfall, the stored power is exhausted, and finally the battery reaches the point b.
After the point b, the operation of the repeater 13 is no longer guaranteed, so that the observation center 17 is contacted via the base station 16 at this point. The observation center 17 detects that the operation of the debris flow detection method is no longer guaranteed.

Here, as described above, each GPS terminal 11
When transmitting the installation coordinates to the base station 16 all at once, since the power consumption of each GPS terminal 11 becomes maximum, the power supplied from the repeater 13 to each GPS terminal 11 also flows rapidly, In the worst case, the remaining power of the secondary battery 26 may be exhausted. Therefore, when control is performed such that the GPS terminals 11 sequentially transmit signals to the base station 16 in accordance with a command from the base station 16, the power consumption of each GPS terminal 11 is dispersed, and the GPS terminal 11 It is not necessary to send an excessive amount of power to the secondary battery 26, and the power consumption of the secondary battery 26 is also long-lasting.

Here, the GP 13 is transmitted from the repeater 13 as described above.
When power is supplied to the S terminal 11, power is supplied from one system, and the power is supplied to the series through each GPS terminal 11 by two power supply lines including GND.

However, the secondary battery 26 of the repeater 13 is configured in a plurality, and the GPS terminal 11 is also operated by a plurality of power supplies. For example, the power supply system that supplies the transmitting and receiving unit 31 to a receiving unit from the base station 16 with low power consumption and a GPS receiving unit, a data transmitting unit to the base station 16 with high power consumption, and the like are divided.

The repeater 13 is provided with a current measuring section 32 for each of a plurality of divided power supplies, and measures the current for each power supply system so that disconnection of the power supply line can be detected.

Further, a plurality of power supply lines from the repeater 13 are used to supply power to the GPS terminal 11. The power supply line is divided into a thick line for a line where a large amount of current flows, and a thin line for a line with a small amount of electric current, and these lines are separated from each other. When a debris flow or landslide occurs, if the scale of the debris flow is small, a thin line may be cut and a thick line may not be cut. Further, since the laying positions of the lines are different, one of the lines may be cut and one of the lines may not be cut. In short, it is possible to detect the debris flow, landslide scale and position of the laying area more finely based on the thickness of the line and the difference of the laying place.

FIG. 15 is a diagram showing a configuration of the base station 16. The components of the base station 16 are not much different from the components of the repeater 13. The base station 16 also has a solar battery 62 and a secondary battery 66, and the secondary battery 66 is charged from the solar battery 62.

The GPS calculation unit 60 constantly monitors the latitude and longitude of the location where the base station 16 is installed.
For GPS measurement, an error between a known and accurate latitude and longitude of the base station 16 and the observed latitude and longitude is calculated and transmitted to the observation center 17.

The antenna 63 and the transmitting / receiving section 61 are GP
It receives the satellite radio wave for S calculation and the latitude and longitude transmitted from the GPS terminal 11 embedded in the collapsed area. Also, various data transmitted from the repeater 13 are received. The antenna 63 and the transmission / reception unit 61 send the observation error of the latitude and longitude at the base station 16, the data sent from the repeater 13, and the latitude and longitude sent from the GPS terminal 11 to the observation center 17. Sending.

FIG. 16 is a diagram showing the configuration of the observation center 17. The observation center 17 has an antenna 71 and a transmission / reception unit 72 for communicating with the base station 16. Then, the personal computer 73 controls the entire system, and a display unit 74 for displaying the observation result, a printer 75 for printing out the observation result, and a keyboard 7 for operating the personal computer 73.
6. On a day when there is no normal rainfall and no debris flow, the personal computer 73 is operating unattended. Further, it is connected to an external dedicated line or public line 78 via a modem 77 for transmitting observation results to the outside or receiving weather forecast data and the like.

FIG. 17 shows a display 74 of the observation center 17.
Is an example of the observation result displayed in FIG. When the debris flow occurs, the GPS terminal 11 moves, and the displacement is highlighted with respect to the original latitude and longitude and the moved latitude and longitude. When the wire 12 is cut, a cutting section 79 is also displayed.

Here, the coordinate information of each GPS terminal 11 and the disconnection information of the wire 12 sent to the observation center 17 are transmitted from the outside via the dedicated line or the public line 78 for the weather forecast and rainfall of the corresponding area. It is preferable that the probability or the information obtained from an external rain gauge or the like be acquired and the number of observation commands to the base station 16 be reduced based on the information. That is, when the rainfall probability is high, the observation command is frequently sent, and when the weather is fine, the frequency of the observation command is reduced, and the secondary battery 66 of the base station 16 and the secondary battery 26 of the repeater 13 are transmitted.
(If the GPS terminal 11 has a secondary battery, the secondary battery is used).

The system described with reference to FIGS. 10, 11 and 15 is a system in which the latitude and longitude acquired by the GPS terminal 11 are transmitted to the base station 16 by radio.

However, the latitude and longitude measured by the GPS terminal 11 may be sent to the repeater 13 by wire, that is, by a signal line. FIG. 18 is an example of the repeater 13 transmitting and receiving data to and from the GPS terminal 11 via the signal line 38 by the bidirectional driver receiver 37. FIG. 19 shows a GPS terminal 11 that exchanges data with the repeater 13 via a bidirectional driver receiver 59 for data of latitude and longitude via a wire.
This is an example.

FIG. 20 is a diagram showing the connection state of the entire power supply lines and signal lines in this system. The communication method from the repeater 13 to each of the GPS terminals 11 is such that a command is sent from the repeater 13 to all the slave units, that is, all the GPS terminals 11 with the repeater 13 as a master unit. At this time, if the ID number of the GPS terminal 11 to be communicated is added to the command, the GPS terminal 11 corresponding to the ID number responds to the repeater 13. Therefore, the repeater 13 periodically transmits all GPs.
The command of the return request is sent to the S terminal 11, and if there is a GPS terminal 11 that does not respond, the GP
It is possible to determine whether the S terminal 11 has failed, whether the wire 12 has been cut and power has been cut off, or whether the signal line itself has been cut. That is, the disconnection of the power supply line 39 can be detected by the current measurement unit 32, and the disconnection of the signal line 38 can be determined by not receiving a response to the command.

FIG. 10, FIG. 11, and FIG.
Although the system described in (1) transmits the latitude and longitude clear information from the GPS terminal 11 to the base station 16 wirelessly, the power consumption of the transmission / reception unit 55 is large, but this system transmits the latitude and longitude information via the signal line 38. GPS terminal 1
1 is that the receiver 50 only receives data from the artificial satellite, and the power consumption of the GPS terminal 11 is small, and the power consumption is also reduced because the data transmission with the repeater 13 is performed by wire. There is.

However, as compared with the above-mentioned method, the repeater 1
Since the power line 39 and the signal line 38 must be connected to connect the GPS terminal 11 to the GPS terminal 11, the installation is troublesome.

Here, if the signal line 38 and the power supply line 39 are not bundled together and laid but separated from the power supply line 39, a small landslide cuts the thin signal line 38,
A large landslide may have a higher detection accuracy than a single simple wire such as cutting the power line 39. In order to lay the signal line 38 and the power supply line 39 apart from each other, there is a method of fixing the signal line 38 or the power supply line 39 on the way to the ground with only the pile 42 and separating them as shown in FIG.

Further, although a debris flow occurred in one of the GPS terminals 11, the signal line 38 and the power supply line 39 were not cut off, but the GPS terminal 11 was buried in the debris flow and could not receive data from an artificial satellite, and positioning was impossible. Is reached, the GPS terminal 11 informs the repeater 13 of information indicating that positioning is impossible via the signal line 38, so that the repeater 13 communicates with the observation center 17 through the base station 16, and the observation center 17 generates debris flow. Can be known to be suspected.

FIG. 21 shows a case where the repeater (# 1) 13
-1 and a repeater (# 2) 13-2 are installed, and both repeaters are connected by a wire 12, and a GP is provided between the wires 12.
This is an example in which an S terminal 11 is connected.

In the steady state, the wire 12 is monitored only by the repeater (# 1) 13-1. When a debris flow and a landslide occur and the wire is cut in the cutting section 79, power or signals are not supplied after the cutting section 79, and the GPS terminal 11 connected thereafter does not operate and becomes useless. Therefore, according to the present method, when a break occurs in the wire 12, the repeater (# 2) 13 for the subsequent wire 12A and the GPS terminal 11A connected to the wire.
-2 can take over the function of the repeater (# 1) 13-1 and further cope with the wire disconnection event.

In the above-described method, the repeater 13
The operation of each GPS terminal 11 was guaranteed by having the secondary battery 26 and supplying the power to each GPS terminal 11. However, sunshine hours are reduced due to long-term rainfall,
When power generation by the solar battery 22 of the repeater 13 cannot be expected, the repeater 13
And a GPS terminal 11 supplying electric power by wire 12
Power can no longer be provided.

Conventionally, when debris flow damage occurs, the ground is often loosened after long-term rainfall and triggered by landslides. In such a case, the secondary battery 2 of the repeater 13 is important.
When the stored power of 6 runs out, the operation of the entire system is no longer guaranteed, and data when a landslide occurs cannot be sent to the observation center 17.

Therefore, in the embodiment described below, each GP
The S terminal device 11 is provided with a secondary battery.
3 through the wire 12 to the GPS
It is characterized in that the secondary battery of the terminal device 11 is charged.

FIGS. 22 and 23 are diagrams showing the configurations of the repeater 13 and the GPS terminal 11 according to the present system, respectively.

The repeater 13 in FIG. 22 is the same as the repeater 1 in FIG.
3, a secondary battery 26 is provided. The power of the solar battery 22 is charged in the secondary battery 26, and the secondary battery 26
-Controlling the DC converter 25 to generate a plurality of power supplies 27 necessary for the entire repeater 13. Also, unlike the repeater 13 in FIG. 18, since no data is exchanged with each GPS terminal 11, the bidirectional driver receiver 37 is removed from the repeater 13 in FIG. When a short circuit occurs between the GND and the power supply 33 somewhere on the wire 2 of the GPS terminal 11 connected to the power supply 33 and the overcurrent is measured by the current measuring unit 32, the control of the control unit 30 By operating the relay (L1) 34, the power supply 33 can be disconnected from the repeater 13. In order to prevent the relay (L2) from passing an excessive current to the power supply line of the power supply 33, a resistor (R1) 91 is connected in series to the power supply line under the control of the control unit 30 (the contact is a Side) and when the power supply line is directly connected (when the contact point falls to the b side).

The GPS terminal 11 shown in FIG.
have. Charge / discharge control unit 88, A / D conversion unit 89,
The operation of the DC-DC converter 85 is the same as that of the repeater 13 described above.
Charge / discharge control unit 28, A / D conversion unit 29, DC-
The operation of the DC converter 25 is the same as that of the DC converter 25. In the repeater 13, the power generated by the solar battery 22 is used as the power supplied from the outside.
The power supply 51 supplied from the power supply 3 corresponds to the power supply 51.

FIG. 24 is a diagram showing a connection state of the power supply system in a steady state. Relay (L1) 3 of repeater 13
4 has a role of disconnecting the repeater 13 and the wire 12 when the wire 12 is short-circuited on the way as described above, and protecting the excessive current from flowing into the wire 12. In the steady state, the relay (L2) 92 is conducting to the direction b. And on the GPS terminal 11 side,
The relay (L3) 93 is conducting, and the relay (L4) is conducting to the b side in a steady state. That is, the repeater 1
The voltage of the secondary battery 26 of No. 3 is connected to the diode 84 of each GPS terminal 11, and the power supply 51 is supplied to each GPS terminal 11.

When the system is operated during rainfall according to the present method, the solar cell 22 of the repeater 13 has no opportunity to generate power as described above, and only consumes power. On the other hand, there is less room to supply charging power. Then, the secondary battery 26 of the repeater 13
When the electric power of the wire 12 is used up, the detection by cutting the wire 12 cannot be performed.

Therefore, in the repeater 13, the A / D converter 2
9, the state of consumption of the secondary battery 26 is checked.
In the case where the disconnection occurs only in the observation by disconnection, when the surplus power capable of transmitting the disconnection result to the base station 16 reaches a state where it still remains, the repeater 13 connects the wire 1
2 to disconnect the GPS terminal 11 connected to
The power supply to the S terminal 11 is stopped. The repeater 13 concentrates on observation by cutting the wire 12, and each of the separated GPS terminals 11 uses its own rechargeable battery 86 to stake 4.
2 is observed, and when the stake 42 moves, the corresponding GPS terminal 11 notifies the base station 16.

When the above operation is reached, the repeater 13 informs the base station 16 that the remaining amount of the secondary battery 26 has decreased and the observation has shifted to the observation of only the wire 12. The base station 16 immediately informs each of the GPS terminals 11 of the above contents, the relay (L3) 93 is disconnected, and the power is not supplied from the repeater 13 to each of the GPS terminals 11.

FIG. 25 is a diagram showing a connection state of the power supply for the repeater 13 and each GPS terminal 11 in such a state. That is, the relay (L2) of the repeater 13 is turned on toward the point a, and the resistor (R1) 91 enters the power supply system in series. Then, the relay (L3) 93 of each GPS terminal 11 is disconnected. The relay (L) of the end GPS terminal 11-m connected to the wire 12
5) 95 conducts to the a side. That is, when the power supply 33 is G
Conducting to the ND side, a current supplied from the secondary battery 26 forms a closed circuit flowing only to the resistor (R1) 91.

The resistor (R1) 91 needs to have a resistance value at which a minute current flows through the closed circuit and the current measuring unit 32 can reliably detect the disconnected state when the wire 12 is disconnected.
Here, when the wire 12 is long, the resistance of the wire 12 itself may have a sufficient resistance in some cases.
91 becomes unnecessary. In such a case, the resistor (R1) 91
Need to be shorted.

By the way, some GPS terminals 11 may be buried due to debris flow or landslide, but the wires 12 may not be cut. In such a case, the base station 16 knows that an abnormality has occurred because the communication with the GPS terminal 11 is interrupted, and
It is possible to detect that a debris flow and a landslide are suspected to occur near 1, and to notify the observation center 17 that a debris flow and a landslide are suspected to occur near the corresponding GPS terminal 11.

Since the GPS terminal 11 cannot communicate with the base station 16, the GPS terminal 11 does not need to receive a charging current from the repeater 13 thereafter.

FIG. 26 shows a state in which the relay (L3) 93 of the GPS terminal 11-2 is turned off and the supply of the charging current from the secondary battery 26 is cut off.

Further, when the wire 12 is cut or short-circuited, the GPS terminal 11 after that point is disconnected from the wire 12.
From its own secondary battery 86, and concentrate on GPS observation using its own secondary battery 86.
It is better to use both the observation by cutting the GPS and the GPS observation.

FIG. 27 is a diagram showing a state where a cut or a short circuit occurs on the wire 12. When a cut or short occurs at the cut point 57 or the short point 58 on the wire 12, the relay (L4) 94 of the GPS terminal 11-2 immediately before this point is turned off, and the subsequent GPS terminal The power supply to the power supply 11 is cut off. The GPS terminal 11 connected to the wire 12 after the cut point 57 or the short point 58 is connected to the relay (L
3) Turn 93 off and disconnect from wire 12.

The above-mentioned method, that is, each GPS terminal 11
If you have a secondary battery 86 yourself,
7 may be displayed on the display 74 of FIG. That is, by displaying the terminal number of each GPS terminal 11 connected to the wire 12 and the surplus state of the secondary battery 86, it is possible to grasp how much the present system can observe in the future. In the display, as shown in FIG. 28, it is easy to understand that the surplus state of the secondary battery 86 of the GPS terminal 11 is displayed by the number of times of transmission and the standby time.

As described above, when the remaining power of the secondary battery 26 of the repeater 13 decreases, the GPS terminal 11 is connected to the wire 1.
2, the relay 13 performs debris flow detection with only the wire 12. In this case, the current does not always flow through the wire 12, but the current flows periodically, and the wire 12
If the method of detecting the disconnection of the secondary battery is used,
6 can be further reduced.

In the above description, the secondary battery 26 of the repeater 13
When the remaining power of the GPS terminal 11 is low, the repeater 13 uses the debris flow detection method using only the wire 12, but if the secondary battery 86 of the GPS terminal 11 is sufficiently charged, the GPS terminal 11 11 may be disconnected from the wire 12, and the relay 13 may be dedicated to debris flow detection by the wire 12.

If the weather continues and the debris flow is less likely to occur, the debris flow observation by the GPS terminal 11 is also stopped, only the circuit that can receive communication from the base station 16 is operated, and power is supplied to the remaining circuits. To stop. Also,
If the repeater 13 intermittently concentrates on the detection using only the wire 12 in the same manner as described above, the power consumption of the repeater 13 can be reduced in summer.

However, even if various measures are taken as described above, the remaining power of the secondary battery 26 of the repeater 13 becomes low, and
If the rainfall continues and there is still a risk of debris flow and landslide, the secondary battery 26 can be charged by connecting the power generator to the repeater 13 manually.

When the installation location of the repeater 13 is close to a mountain village, there is a method of temporarily providing a commercial power supply to the repeater 13 and supplying power to the repeater 13.

The above-mentioned method has a method in which the repeater 13 has a power supply and supplies power to each GPS terminal 11, and each GPS terminal 11 has a secondary battery 86, and the repeater 13 has The method of supplying charging power to the power supply 11 has been described.

However, by omitting the repeater 13 from the system and providing the GPS terminal 11 with the solar battery 98 itself, the GPS terminal 11 can operate independently.

FIG. 29 shows an example of a GPS terminal device 11 having a solar battery 98 and capable of driving an internal circuit with the power generated by the solar battery 98.

FIG. 30 is a diagram showing a schematic configuration of a system using the GPS terminal 11 driven by the solar cell. Each GPS terminal 11 embedded at the collapse point communicates with the base station 16 independently, sends the current position of each GPS terminal 11 to the base station 16 one by one, and the information is transferred to the observation center 17. , The moving state of each GPS terminal 11 can be detected.

Also, when the GPS terminal 11 is buried due to the occurrence of debris flow, the base station 16 informs the observation center 17 that there is a suspicion that debris flow has occurred in the vicinity of the GPS terminal 11.

FIG. 31 is a diagram showing the configuration of the self-contained GPS terminal 11. This configuration is an operation of charging the secondary battery 86 with the electric power generated by the solar battery 98, similarly to the repeater 13 shown in FIG. And A / D
The conversion unit 89 checks the remaining stored power of the secondary battery 86,
It is sent to the base station 16.

As described above, the wire 12 is stretched mainly in the collapse area, and when the debris flow occurs, the wire 12 is cut to detect the occurrence of the debris flow, and the GPS terminal 11 combined with the pile 42 is embedded in the collapse area. The method of detecting the debris flow by moving the pile 42 by the debris flow has been described. However, when a debris flow occurs, a landslide may occur under the corresponding area, and the pile 42 of the GPS terminal 11 may hardly move.

Therefore, in the following embodiment, a method for quantitatively detecting the degree of a landslide when an underground landslide occurs will be described.

FIG. 32 is a diagram showing the configuration of the strain sensing pile of this embodiment. The oil 102 is filled inside the pile 101. Since the oil 102 may bury the pile 101 in a cold region, a material that does not freeze and has a small volume change due to temperature is selected.
Further, since the oil 102 may flow underground as described later, a vegetable oil that does not destroy the environment is preferable. It is necessary to select a material for the pile 101 that is elastic and deforms when subjected to external force. The oil 102 fills the inside of the pile 101. The valve 104 is pressed from above by the force of the spring 103 to prevent air from entering the oil 102.

[0120] The core 105 is fixed to the valve 104, and a contact 106 is mounted in the middle of the core 105. Then, the contact 106 slides on the variable resistor 107. The lead wire 108, the lead wire 109, and the lead wire 110 are led to the outside from the core 105 and the variable resistor 107.

As an actual operation, when pressure is applied to the pile 101 from outside, the volume of the portion filled with the oil 102 changes. For example, as the stake 101 becomes thinner, the oil 102 is pushed up and the valve 104 is raised. As the valve 104 moves, the contact 106 also moves upward, and slides on the variable resistor 107. Then, the resistance value between the lead wire 108 and the lead wire 109 also changes.

FIG. 33 shows that the contact 106 is
FIG. 9 is a diagram showing a mechanism in which the resistance R between a and ab changes by moving on the top of FIG. The resistance R between a and a of the variable resistor 107
Changes, the voltage (E) 111 is divided by the variable resistor 107 as shown in FIG. 34, and the voltage between a and b changes. Then, the divided voltage is converted into a digital value 113 by the A / D converter 112 and output to the outside.

FIG. 35 (a) shows a state in which no force is applied to the pile 101 from the outside and the valve 104 is stationary. Then, when a force 114 such as debris flow or landslide is applied from the outside as shown in FIG. 3B, the pile 101 is crushed, the volume inside becomes small, and the oil 102 filled inside
Rises and the valve 104 moves with it. And
The resistance between a and a in FIG. 34 also changes.

When the external force becomes stronger,
As shown in FIG. 35C, the pile 101 is damaged, and the oil 102 flows out underground. When the oil flows out, the valve 104 is pushed by the spring 103 and moves to the stopper 115 shown in FIG. The contact 106 is a variable resistor 1
Move to the end of 07. That is, it moves to the point c in FIG.

FIG. 36 shows a horizontal displacement h which is displaced from the center of the stake 101 when the stake 101 is bent horizontally by applying a force from the outside.
FIG. 6 is a diagram showing a change in resistance R between a and a. That is, the resistance R is a point a when the horizontal displacement is zero, and as the horizontal displacement increases, the resistance R decreases and the pile 101
Is cut off, the resistance suddenly increases to point b. That is, this embodiment has an advantage that the force applied to the pile 101 can be quantitatively measured, and even if an excessive force is applied and the pile 101 is broken, the broken state can be detected.

Next, when attaching the GPS terminal 11 to the stake 42, when the stake 42 is inserted into the inclined ground 19 as shown in FIG. 37, the antenna 45 attached to the upper part of the GPS control unit 41 is oriented vertically. There is a possibility that communication with the base station 16 cannot be performed.

Therefore, a mechanism for holding the antenna 45 vertically as shown in FIG. 38 becomes effective. That is, the fixing portion 121-1 and the fixing portion 121-2 are fixed to the inner wall of the pile 42, and when the pile 42 is tilted, the fixing portion 121-1 and the fixing portion 121-2 tilt together. However, the wheel 1 is fixed so that the weight 123 fixed together with the core 122 maintains the vertical position.
The wheel 24 and the wheel 125 rotate properly and stop in a balanced state. An antenna 45 is attached to the weight 123, and when the weight 123 stops vertically, the antenna 45 also stands still while maintaining the vertical. That is, regardless of the direction in which the stake 42 is inserted into the ground 19, the antenna 45 is oriented in the vertical direction, and an optimal communication state with the base station 16 can be maintained.

Then, the wheel 124 and the pile 42 are
The angle 127 of the ring 124 and the ring 12
5 by measuring the angle 129 between
5 and the inclination of the pile 42 can be quantitatively measured.

The goniometer 126 and goniometer 128 are shown in FIG.
Is a disk-shaped variable resistor. That is, the contact 13
0 slides on the resistor 131 in an arc shape, so that ab
The resistance value between them changes.

FIG. 40 shows the structure of the goniometer 126 and goniometer 128. A voltage (E1) 134 and a voltage (E2) 13 are applied to the variable resistors 132 and 133, respectively.
The A / D converter 136 and the A / D converter 137 convert the output from the point b of each of the variable resistors 132 and 133 into a digital value 138 and a digital value 139, respectively, and output the digital value to the outside. That is, how much the antenna 45 is tilted from the pile 42 can be obtained as a digital value.

Further, as shown in FIG. 41, it is assumed that the stake 42 is initially inserted into the ground 19 with an inclination a as shown in FIG. In this state, the inclination state of the pile 42 is measured as a digital value 138 and a digital value 139. Then, when the landslide occurs and the pile 42 further tilts to the state b, the digital value 138 and the digital value 139 of the tilting state are similarly measured, and the relative tilt with respect to the previous value is quantitatively measured. be able to.

Here, in FIG. 38, the antenna 45 and the weight 1
Although the mechanism 23 and the weight 23 operate together, as shown in FIG.
Can be quantitatively measured to determine the relative inclination of the object, and can be used as an inclinometer.

As described above, the pile 42 has a detector for detecting the flow state of the underground debris as shown in FIG.
As shown at 0, a detector for detecting the inclination of the ground due to a landslide was provided. In addition, as the detector provided on the pile 42, various detectors such as a detector that detects a change in groundwater in an area where a debris flow is suspected and a vibrometer that detects a vibration state of the underground that should be a forerunner of the debris flow can be applied.

As shown in FIG. 43, an embodiment is conceivable in which these detectors 141 are connected in series by a power supply line 142 and a signal line 143, and guided to an alarm unit 144 installed in a safe area. .

In this embodiment, the alarm section 144 is provided with a solar cell 145 and an alarm 146 that sounds an alarm to the surroundings using a siren or a voice synthesizer.

In this embodiment, the detector 141 houses the detection mechanism inside the pile 42 and embeds the pile 42 itself in the area where the debris flow is expected to occur. However, a method in which the detector 141 is housed in a normal small box and the box is fixed to the ground 19 with concrete may be used.

Also, in this embodiment, each detector 141
The power is supplied from the alarm unit 144 via the power line 142 to drive the. According to this embodiment, the power supply line 1
Reference numeral 42 serves to detect the debris flow by the alarm unit 144 when it is cut off by the debris flow, and to supply power to the detector 141 via the power supply line 142. Further, the detector 141 can detect the debris flow. The result detected by the detector 141 is transmitted to the alarm unit 144 via the signal line 143. If the signal line 143 is also cut by the debris flow, the debris flow can be detected.

When a signal is superimposed on the power supply line 142 by the SS method (spread spectrum method) or the like, the signal line 1
43 can also be omitted. According to the above description, the power supply line 142 only plays a role of a conductor for passing a current. However, according to the embodiment having such a configuration, the power supply line 142 is used as a power supply line for supplying power to the detector 141. It can be used for a signal line for transmitting and receiving a signal between the alarm unit 144 and the alarm unit 144, and a debris flow detection by cutting a power line.

FIG. 44 is a diagram showing a configuration of the alarm section 144 in a system using both the power supply line and the signal line. It is similar to the configuration diagram of the repeater 13 in FIG.
The control unit 30 controls the alarm 146 directly. In addition, an SS type transmitting / receiving unit 147 is provided for transmitting and receiving signals to and from the detector 141, and the signal line 148 is connected to the supply power supply 150 at a high frequency at a connecting portion 149.

FIG. 45 is a diagram showing the structure of the detector 141. As shown in FIG. Like the alarm unit 144, the SS system transmitting / receiving unit 1
51, and the signal line 152 is coupled to the supplied power supply 154 at a coupling portion 153 in high frequency. The pile pressure detector 155 for detecting underground distortion caused by piles described with reference to FIG. 32 and the pile inclination detector 156 based on the circuit described with reference to FIG. 40 are connected to the controller 56.

FIG. 46 shows the alarm unit 144 and the detector 1
FIG. 4 is a diagram showing a connection state with the control unit 41; That is, the SS system transmitting / receiving unit 147 of the alarm unit 144 and the S
The S-system transmission / reception unit 151 is connected at a high frequency to exchange data. Then, the detector 1 is output from the alarm unit 144.
The power supplied to 41 is the same as the operation described above.

As the communication method, similarly to the method of FIG. 20, each detector 141 is regarded as a child device having a unique ID using the alarm unit 144 as a master unit, and an ID is designated from the alarm unit 144 to simultaneously To all detectors 141, and the specified ID
Is a system that responds to the alarm unit 144.

[0143] Here, the alarm section 144 outputs the signals from the respective detectors 141.
Returns the remaining amount of the secondary battery 86 of the detector 141 to the alarm unit 144, and the alarm unit 144 monitors the remaining amount. The number of observations can be set finely according to the remaining amount of the secondary battery 86 of the detector 141, for example, by increasing the frequency of observation for the detector 141 having a large remaining amount.

The communication method between the alarm unit 144 and the detector 141 is not limited to the alarm unit 144. The emergency information is transmitted only when an event, that is, a debris flow occurs in the detector 141 and the detection sensor is activated. A method of sending the signal to the alarm unit 144 may also be used. According to this method, the alarm unit 144 can be set in a standby mode so that data can be received from the detector 141, and other operations can be stopped. Further, the detector 141 is also stopped when the sensor is not activated, and when the sensor is activated, the data obtained by the sensor is sent to the alarm unit 144, and the secondary battery 26 of the alarm unit 144 and the detector 141 are sent. Consumption of the secondary battery 86 can be reduced.

The above-described method detects debris flows, landslides, and the like in advance, and when a sign of a disaster can be detected, evacuates the residents of the basin to a safe place quickly and prevents the debris flow from occurring in the area where the debris flows. The purpose is to implement civil engineering measures.

However, if a debris flow is generated even with careful attention, the disaster will be further increased unless the debris flow moves quickly in the future.
When such a situation occurs, the GP
It is dangerous to install the S terminal 11, and there is a risk of a secondary disaster.

Therefore, in the embodiment described below, when a debris flow occurs, a helicopter flies to the site and drops the GPS terminal 11 in an area where the debris flow has occurred, and how the debris flow moves thereafter will be described. The purpose is to measure the trajectory transmitted from the container 11.

Conventionally, there is a GPS terminal for such a purpose. That is, the helicopter flies over the area where the debris flow has occurred, and drops the GPS terminal to which the column 160 as shown in FIG. 47 is attached. That is, the column 160 is inserted into the ground, and is not inserted more than necessary by the stopper 161. However, even if such a column 160 is dropped from the sky, the probability that the column 160 will be inserted vertically into the ground is extremely low, and almost all GPS terminals may fall down or collide with rocks and be damaged. Is big.

Therefore, in this embodiment, the drop type GPS terminal 11 as shown in FIG. 48 is dropped from a helicopter. The main body 162 of the drop-down type GPS terminal 11 has a spherical shape, and has many projections 163 attached to the surface. The projection 163 is attached to the main body 162 via a spring 164. When the hook 165 is dropped from a helicopter, it is necessary to fix the hook 165 with a string or the like.

When such a drop type GPS terminal device 11 falls from the helicopter to the ground, the impact given to the drop type GPS terminal device 11 by the effect of the projection 163 and the spring 164 is softened, and the projection 163 is caught by a rock or the like, from the falling point. Immediately stops without rolling over a wide area. Since the antenna inside the drop-down type GPS terminal 11 adopts the mechanism shown in FIG. 38, no matter how the main body 162 rolls on the ground, if the antenna is stationary, the antenna is oriented vertically, and the base station 16 is securely connected to the base station 16. Can communicate.

FIG. 49 is a diagram showing a circuit configuration of the drop-down type GPS terminal 11. As shown in FIG. The dropped GPS terminal 11 has its own battery 166, and can communicate with the base station 16 until the battery 166 runs out.

When the drop-type GPS terminal 11 that has landed on the ground is buried due to debris flow, the drop-type GPS terminal 11 cannot communicate with the base station 16. Even in such a case, the base station 16 will
The observation center 17 can be notified that the debris flow may have occurred around the PS terminal 11.

In order to drop the drop type GPS terminal 11 of this embodiment on the ground, first, the drop type GPS terminal 11
A rope is connected to the hook 165, and the drop type GPS terminal 11 is suspended from the helicopter toward the ground, and the hook 165 is removed at an appropriate position and dropped. However, it is difficult to see how long the rope should be hung from the sky, and when the wind blows, the drop-type GPS terminal 11 sways in the horizontal direction and collides with the slopes of the worst-case collapsed area and breaks. Could be

Then, as shown in FIG. 50, the drop type GPS terminal 11 is put in the protective cover 167, and as shown in FIG.
Drop-down GP placed in a protective cover 167 from a helicopter 168 by a rope 169 (including a signal line)
Hang the S terminal 11 and gradually lengthen the rope 169, and when the length of the rope 169 becomes an appropriate position,
Release the hook 165 and drop the drop-down type GPS terminal 11 on the ground.

The protective cover 167 is made of a resilient material.
The structure is such that no impact is transmitted to the terminal device 11. In addition, four side observation cameras 170, such as CCD cameras, are attached to the side surface of the protective cover 167 every 90 degrees so that the surrounding scenery can be photographed. Also,
As shown in FIG. 52, a bottom surface observation camera 171 composed of a CCD camera or the like is also attached to the bottom surface of the protective cover 167.
The lowermost color can also be photographed. The protective cover 167 has a hook release mechanism 1 for releasing the hook 165 by an electric switch signal from the helicopter 168.
72.

FIG. 53 is a block diagram showing a control mechanism of the drop-down type GPS terminal 11. As shown in FIG.

The control mechanism main body 1 surrounded by a dotted frame
80 is mounted on the helicopter 168. Protective cover 1
Image data captured by the side observation camera 170 attached to the side surface of the 67 is input to the control unit 181. The image data captured by the bottom surface observation camera 171 is also input to the control unit 181. Then, an image captured by the side observation camera 170 is displayed on the monitor 182. The screen of the monitor 182 is divided into four equal parts, and the image of each side observation camera 170 is displayed by a multi-window. By operating the display changeover switch 183, an image displayed on the monitor 182 can be switched between an image captured by the side observation camera 170 and an image captured by the bottom observation camera 171.

Here, in order to operate the drop-type GPS terminal 11 at the actual site, first, the drop-type GPS terminal 11 put in the protective cover 167 is lowered from the helicopter 168, Observation camera 170
Alternatively, the surrounding or lower scenery is observed while selecting the image photographed by the bottom observation camera 171 with the display changeover switch 183. When the release type GPS terminal device 11 reaches an appropriate position, the hook release switch 184 is operated, and the hook release mechanism 172 operates to release the release type GPS terminal.
When the hook 165 of the terminal device 11 is released, the drop-down type GPS terminal device 11 jumps out of the protective cover 167 and falls and lands on the ground.

The above-mentioned drop type GPS terminal 11
Is a method of lowering the protective cover 167 while watching the surrounding scenery observed by the side observation camera 170 and the bottom observation camera 171, removing the hook 165 at an appropriate position, and dropping the drop-down type GPS terminal 11 on the ground. It is.

However, the distance between the protective cover 167 and the ground 19 is not exactly known even when observed with the bottom observation camera 171, and even if the drop-type GPS terminal 11 lands safely on the ground, the surroundings may become cliffs. In some cases, the dropped GPS terminal 11 cannot communicate with the base station 16 due to the interruption of the radio wave. However, since the dropped GPS terminal device 11 has been dropped on the ground, it cannot be recovered.

Therefore, in the next embodiment, as shown in FIG. 54, the take-up wheel 190 attached to the protective cover 167
Hanging the string 191 from above, and dropping GP at the tip of the string 191
The S terminal 11 is attached. And the winding wheel 19
By turning 0 little by little, the drop type GPS terminal 11 gently lands on the ground.

The operation of this embodiment will be described below with reference to FIGS. FIG. 54 (a)
And (b) respectively show a dropping GP
FIG. 55 is a front view and a side view showing a state where the S terminal 11 is suspended, and FIG.
FIG. 56 is a bottom view of the protective cover 167 in that case, and FIG. 57 is a diagram showing the system configuration.

As shown in FIG. 56, an ultrasonic transmission sensor 192 and an ultrasonic reception sensor 193 are attached to the bottom of the protective cover 167. When the protective cover 167 is lowered onto the ground, the ultrasonic transmission sensor 192 always receives the ultrasonic signal. The ultrasonic wave sensor transmits the sound wave and reflects the ultrasonic wave reflected from the ground.
The distance from the ground is observed by observing the time at which the ultrasonic wave is received at 93 and returns. At the same time, the state of the ground is observed by the bottom observation camera 171.

Then, when lowering the protective cover 167,
When the protective cover 167 reaches a predetermined distance from the ground in consideration of the length of the string 191 wound on the winding wheel 190 and the like, the winding motor right rotation and stop switch 194 is provided.
The winding motor 195 is driven while operating
The drop type GPS terminal 11 connected to 1 is gently lowered to the ground. Then, after landing on the ground, the take-up motor 195 is stopped by operating the take-up motor clockwise and stop switch 194.

Next, the transmitting / receiving section 196 is operated, and the base station 1
A radio wave is transmitted on a trial basis between the base station 16 and the base station 16 and attempts to communicate with the dropped GPS terminal 11 that has landed on the ground. Here, when communication becomes possible, the motor moving switch 197 is operated to move the winding motor 195 to the right by the motor moving mechanism 198, and
Remove 0 from the motor core rod 199. The take-up wheel 190 and the string 191 fall to the ground, and the protection cover 167 is collected by the helicopter 168.

In this embodiment, the take-up motor 190 is moved to move the take-up wheel 190 to the motor shaft 19.
9, but a mechanism that cuts the string 191 with a cutter when the string 191 has an optimum length may be used.

On the other hand, if communication is performed between the base station 16 and the drop-down type GPS terminal 11 and communication cannot be performed,
By operating the winding motor left rotation and stop switch 200, the string 191 is wound around the winding wheel 190. Then, the dropped GPS terminal device 11 is collected in the protective cover 167,
A search is made again for an appropriate place to land the dropped GPS end device 11 again.

As described above, in this embodiment, the distance between the protective cover 167 and the ground is measured, and when the height reaches the optimum height, the drop-down type GPS terminal 11 is gently lowered, and once landed. Test communication with the base station 16 is performed, and if radio wave communication is possible, the cord 191 is removed, and if communication is impossible, the drop-down type GPS terminal 11 is collected in the protective cover 167.

Therefore, the drop-type GPS terminal 11 is not accidentally dropped and damaged, and can be recovered if it cannot be landed and communicated with the base station 16, so that it can be reliably re-communicated. Because you can land
The dropped GPS terminal 11 is not wasted.

The ultrasonic transmission sensor 1 is provided under the protective cover 167 of FIG. 50 similarly to the protective cover 167 of FIG.
92 and the ultrasonic receiving sensor 193, the protective cover 167 is gradually lowered from the helicopter 168, and the ultrasonic transmitting sensor 192 and the ultrasonic receiving sensor 193 are attached.
When the distance between the protective cover 167 and the ground surface measured in the step becomes optimal, the hook release mechanism 172 may be automatically operated to drop the drop-down type GPS terminal 11 onto the ground.

The distance to be dropped must be determined in advance so that the dropped GPS terminal 11 will not be damaged if dropped, regardless of the state of the ground.

By the way, the above-mentioned drop type GPS terminal 1
Since the antenna cannot be enlarged, the antenna becomes short, and it has to communicate with the base station 16 by radio waves in the GHz band, which has strong linearity. There are things you can't do. In such a case,
If the base station 16 and the AM band or FM band radio waves are used, the possibility of communication can be increased.

Therefore, the embodiment described below aims at making the antenna for communicating with the base station 16 of the drop-down type GPS terminal 11 longer to communicate at the above low frequency.

FIG. 58 is a diagram showing a schematic configuration of this embodiment. The drop-down GPS terminal 11 and the balloon 201 are stored inside the protective cover 167. The inside of the balloon 201 is filled with helium or the like that generates buoyancy. Further, the drop-down GPS terminal 11 and the balloon 201 are connected by an antenna wire 202, and the antenna wires 202 are bundled and stored inside the protective cover 167.

The drop type GPS terminal 11 is fixed to the protective cover 167 by the hook release mechanism 172 as described above. Then, the balloon 201 is housed in the upper part of the protective cover 167, the drop-down type GPS terminal 11 is housed in the lower part, and the hook opening mechanism 172 is attached to the lower part of the balloon 201. As shown in FIG. The donut shape is adopted so that the hook opening mechanism 172 can be stored in the hollow portion of the donut.

As shown in FIG. 59, the release type GPS terminal 1 is controlled by controlling the hook release mechanism 172 from the helicopter 168.
When 1 is separated from the protective cover 167, the balloon 201 floats in the air, and the dropped GPS terminal 11 lands without receiving an impact, and the two are connected by the antenna line 202.

Here, the above-mentioned drop type GPS terminal 11
Has a projection 163 attached to the surface, but in this embodiment, the surface of the drop type GPS terminal 11 is smoothened. The reason is that the GPS terminal 1 dropped from the protective cover 167
This is to prevent the antenna wire 202 from being entangled with the projection 163 when dropping 1. If the antenna line 202 is lengthened as shown in FIG. 59, the frequency can be lowered in order to communicate with the base station 16;
The power consumption of the transmission circuit for transmitting from the S terminal 11 to the base station 16 can be reduced, and the battery 166 housed in the dropped GPS terminal 11 can be made to last longer.

Also, when the balloon 201 serves as a landmark and flies over the debris flow generation point with the helicopter 168 after dropping, it is possible to easily observe at which point the drop type GPS terminal 11 is dropped. There is.

In this embodiment, the side observation camera 170 and the bottom observation camera 171 are provided on the protective cover 167 as described above, and the ultrasonic transmission sensor 19 is provided on the bottom.
2. Attach the ultrasonic receiving sensor 193, observe the surrounding scenery when dropping the protective cover 167 from the helicopter 168, and measure the distance from the ground surface to securely drop the drop-down GPS terminal 11 and the balloon 201. You can land.

Also, as described above, the drop type GPS terminal 1
1 is dropped on the ground once with the string 191 to communicate with the base station 16, and if communication is possible, the drop-down GPS terminal 11 and the balloon 201
May be landed, and if communication is not possible, another drop point may be searched.

After the drop type GPS terminal 11 was dropped, debris flow was generated, and the antenna wire 202 connecting the balloon 201 and the drop type GPS terminal 11 body was cut off.
If communication with the base station 16 becomes impossible, the base station 16 is expected to encounter the debris flow of the drop-type GPS terminal 11 and cause an abnormality, and can use this as one method of debris flow detection.

[0182]

As described above, according to the debris movement detection method, the debris movement detection sensor, the coordinate positioning device drop control device, and the drop type coordinate positioning device according to the present invention, the movement of the debris can be reliably detected. The system and equipment can be realized.

[Brief description of the drawings]

FIG. 1 is a diagram showing a schematic configuration of an embodiment of the present invention.

FIG. 2 is a diagram showing a connection state between a repeater and a plurality of GPS terminals.

FIG. 3 is a diagram illustrating a state in which a GPS terminal moves due to a landslide or the like.

FIG. 4 is an exploded perspective view showing components of the GPS terminal.

FIG. 5 is an exploded perspective view showing a modified example of the GPS terminal.

FIG. 6 is a perspective view showing a modification of the GPS terminal.

FIG. 7 is a diagram illustrating an example of a laying in which the middle of a wire is buried underground using only a stake when a GPS terminal is connected.

Fig. 8 When connecting a GPS terminal, lengthen the stake
The figure explaining the example of installation where the middle of the wire was buried underground using the GPS terminal which exposed the PS control part on the ground.

FIG. 9 is a diagram showing an example in which a tall GPS terminal is laid.

FIG. 10 is a block diagram showing a configuration of a repeater.

FIG. 11 is a block diagram showing a configuration of a GPS terminal.

FIG. 12 is a diagram showing a connection state between a repeater and a plurality of GPS terminals.

FIG. 13 is a diagram showing a circuit example of a current measuring unit in the repeater.

FIG. 14 is a diagram showing discharge characteristics of a secondary battery of the repeater.

FIG. 15 is a block diagram showing a configuration of a base station.

FIG. 16 is a block diagram showing a configuration of an observation center.

FIG. 17 is a diagram showing a display example on a monitor of an observation center.

FIG. 18 is a block diagram showing a configuration example of the repeater when the repeater and the GPS terminal are connected by a signal line.

FIG. 19 is a block diagram showing a circuit configuration example of a GPS terminal in a case where the repeater and the GPS terminal are connected by a signal line.

FIG. 20 is a diagram showing a connection state between a power supply line and a signal line when data transmission and reception between the repeater and the GPS terminal are performed by a signal line.

FIG. 21 is a diagram showing an example in which two repeaters and a GPS terminal are connected by wires.

FIG. 22 is a block diagram showing a configuration example of a repeater in a case where a secondary battery is provided in a GPS terminal.

FIG. 23 is a block diagram showing an example of a circuit configuration of the GPS terminal when the GPS terminal has a secondary battery.

FIG. 24 is a diagram showing a connection state of a power supply system in a steady state including a repeater and a GPS terminal when the GPS terminal has a secondary battery.

FIG. 25 is a diagram showing a connection state of a power supply system in a case where a GPS terminal is provided with a secondary battery and debris flow detection is performed using only wires.

FIG. 26 is a diagram illustrating a state in which a designated GPS terminal is cut off from a power supply line when a secondary battery is provided in the GPS terminal.

FIG. 27 is a diagram illustrating a state in which a short circuit or a cut occurs in the middle of a wire when a secondary battery is provided in a GPS terminal device.

FIG. 28 is a diagram showing an example in which the GPS terminal has a secondary battery, and the remaining amount of the secondary battery of the GPS terminal is displayed on the monitor of the observation center.

FIG. 29 is a perspective view showing an example of a GPS terminal driven by a solar cell.

FIG. 30 is a diagram showing a schematic configuration of an embodiment using a GPS terminal driven by a solar cell.

FIG. 31 is a block diagram showing a circuit configuration example of a GPS terminal driven by a solar cell.

FIG. 32 is a diagram showing a configuration of a strain detection pile.

FIG. 33 is a view for explaining a variable resistance portion of the strain sensing pile.

FIG. 34 is a view for explaining a portion of the strain sensing pile that converts a variable resistance value into a digital value.

FIG. 35 is a view showing a normal state, a state in which pressure is bent from the outside, and a broken state of the strain detection pile.

FIG. 36 is a view showing the relationship between the horizontal displacement of the strain detection pile and the variable resistance.

FIG. 37 is a diagram illustrating a state in which the antenna of the GPS terminal is also inclined when the antenna is fixed to the pile.

FIG. 38 is a view showing a mechanism for always holding the antenna portion of the GPS terminal vertically even when the pile is inclined.

FIG. 39 is a diagram illustrating an example of a variable resistor that detects an angle of a movable portion by a mechanism that maintains an antenna of a GPS terminal vertically.

FIG. 40 is a diagram showing an example of a circuit for converting an angle of a movable portion into a digital value by a mechanism for maintaining an antenna of a GPS terminal vertically;

FIG. 41 is a diagram illustrating a state in which an antenna maintains a vertical state when a pile is tilted due to a landslide.

FIG. 42 is a diagram showing an example in which an inclinometer is used by using a mechanism for maintaining the weight of a GPS terminal vertically.

FIG. 43 is a diagram showing a schematic configuration of an embodiment in which an alarm unit and a plurality of detectors are connected.

FIG. 44 is a block diagram showing a configuration of an alarm unit.

FIG. 45 is a block diagram showing a configuration of a detector.

FIG. 46 is a diagram showing a connection state between the alarm unit and the detector.

FIG. 47 is a view showing the appearance of a conventional drop-type GPS terminal.

FIG. 48 is a view showing the appearance of an embodiment of a drop-down type GPS terminal.

FIG. 49 is a block diagram showing a circuit configuration of a drop-down type GPS terminal.

FIG. 50 is a view for explaining a state where the drop-down type GPS terminal is stored in a protective cover.

FIG. 51 is a view showing a state in which a drop-down type GPS terminal accommodated in a protective cover is suspended from a helicopter.

FIG. 52 is a view of the drop-down type GPS terminal stored in the protective cover as viewed from the bottom.

FIG. 53 is a block diagram showing a configuration of a system using a drop-down type GPS terminal.

FIG. 54 is a front view and a side view showing a state in which a drop-down type GPS terminal is suspended from a take-up vehicle.

FIG. 55 is a diagram showing a state in which the dropped GPS terminal is housed in a protective cover in another embodiment of the dropped GPS terminal.

FIG. 56 is a bottom view of a drop-down GPS terminal housed in a protective cover according to another embodiment of the drop-down GPS terminal.

FIG. 57 is a block diagram showing a configuration of a system in another embodiment of the drop-down type GPS terminal.

FIG. 58 is a view showing a state in which a drop-down GPS terminal and balloons are housed in a protective cover in still another embodiment.

FIG. 59 is a diagram showing a state in which a dropped GPS terminal device is landed in still another embodiment of the dropped GPS terminal device.

FIG. 60 is a diagram showing a schematic configuration of a conventional debris flow detection method using an optical fiber and an invar wire.

FIG. 61 is a view for explaining a method of locally bending an optical fiber when a debris flow occurs in a conventional debris flow detection method using an optical fiber and an invar wire.

FIG. 62 is a view illustrating a method for cutting an optical fiber when a debris flow occurs in a conventional debris flow detection method using an optical fiber and an invar wire.

[Explanation of symbols]

11 (11-1, 11-2, ..., 11-m) ... GPS terminal 12, 12-1, 12-2 ... wire 13 ... repeater 14 ... rock 15 ... cutting point 16 ... base station 17 ... observation center DESCRIPTION OF SYMBOLS 19 ... Ground 21 ... Main body 22 ... Solar cell 23 ... Antenna 24 ... Diode 25 ... DC-DC converter 26 ... Secondary battery 27 ... Power supply 28 ... Charge / discharge control part 29 ... A / D conversion part 30 ... Control part 31 ... Transmission / reception Unit 32 current measuring unit 33 supply power supply 34 relay (L1) 35 resistance (Rs) 36 A / D conversion unit 37 bidirectional driver receiver 38 signal line 39 power line 41 GPS control unit 42 47: Pile 43: Projection 44: GPS circuit 45: Antenna 46: Cover 48: Tree 50: Receiver 51: Power supply 52: DC-DC converter 53: GPS calculator 54: Antenna 55 ... Transceiving unit 56 ... Control unit 57 ... Cut point 58 ... Short point 59 ... Bidirectional driver receiver 60 ... GPS calculating unit 61 ... Transceiving unit 62 ... Solar cell 63 ... Antenna 64 ... Diode 65 ... DC-DC converter 66 ... Secondary battery 67 ... Power supply 68 ... Charge / discharge control unit 69 ... A / D conversion unit 70 ... Control unit 71 ... Antenna 72 ... Transceiving unit 73 ... PC 74 ... Display unit 75 ... Printer 76 ... Keyboard 77 ... Modem 78 ... Dedicated line Or public line 84 ... diode 85 ... DC-DC converter 86 ... secondary battery 87 ... power supply 88 ... charge / discharge control unit 89 ... A / D conversion unit 91 ... resistor (R1) 92 ... relay (L2) 93 ... relay (L3) ) 94 relay (L4) 95 relay (L5) 96 A / D converter 98 solar cell 101 stake 10 2 Oil 103 Spring 104 Valve 105 Core 106 Contact 107 Variable resistance 108, 109, 110 Lead wire 111 Voltage (E) 112 A / D converter 113 Digital value 114 Force 115 Stoppers 121-1, 121-2: fixed portion 122: core 123, 123A ... weights 124, 125 ... wheels 126, 128 ... goniometer 127, 129 ... angle 130 ... contacts 131 ... resistors 132, 133 ... variable resistors 134 ... Voltage (E1) 135 ... Voltage (E2) 136, 137 ... A / D converter 138, 139 ... Digital value 141 ... Detector 142 ... Power line 143 ... Signal line 144 ... Alarm unit 145 ... Solar cell 146 ... Alarm 147 , 151... SS system transmitting / receiving section 148, 152... Signal line 149, 153. ... supplied power supply 160 ... pillar 161 ... stopper 162 ... main body 163 ... projection 164 ... spring 165 ... hook 166 ... battery 167 ... protection cover 168 ... helicopter 169 ... rope 170 ... side observation camera 171 ... bottom observation camera 172 ... hook release mechanism 179 ... antenna 180 ... control mechanism main part 181 ... control unit 182 ... monitor 183 ... display changeover switch 184 ... hook release switch 190 ... winding car 191 ... string 192 ... ultrasonic transmission sensor 193 ... ultrasonic reception sensor 194 ... winding Motor right rotation and stop switch 195 Winding motor 196 Transmission / reception unit 197 Motor movement switch 198 Motor movement mechanism 199 Motor core rod 200 Winding motor left rotation and stop switch 201 Balloon 202 Antenna wire 250 Ground 251: Invar wire pile 252 ... Invar wire 253 ... Optical fiber pile 254 ... Optical fiber 255 ... Operation box 256, 257 ... Roller 258, 259 ... Column 260 ... Plummet 261 ... Cutter 262 ... Stopper

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) G08C 17/00 G08C 17/00 Z F term (Reference) 2D044 EA07 2F073 AA01 AA11 AB05 AB06 AB08 AB11 AB12 AB14 BB01 BB05 BC02 CC01 CC08 CD30 DD05 DE07 EE11 FF00 FG04 GG01 GG02 GG03 GG04 GG09 2F076 BA11 BA16 BB09 BD02 BD17 BE01 BE02 BE14 BE20 5J062 AA01 BB08 CC07 DD13 DD21 FF01 GG01 GG02 HH09

Claims (10)

[Claims] At least one coordinate positioning device for receiving a radio wave from an artificial satellite and positioning coordinates is installed, and by detecting that the installed coordinates of the coordinate positioning device have moved, the debris is moved. Means for connecting a series of wires to a power supply from a predetermined device to the at least one coordinate positioning device, and supplying the power to the at least one coordinate positioning device; And a means for specifying a cutting position or section by the apparatus described in (1). 2. At least one coordinate positioning device for receiving a radio wave from an artificial satellite and positioning coordinates is installed, and by detecting that the installed coordinates of the coordinate positioning device have moved, the debris is moved. In the debris movement detection method of detecting, a signal line is connected in series from a predetermined device to the at least one coordinate positioning device, and the coordinates of the coordinates at which the coordinate positioning device is installed with respect to the predetermined device are determined. A debris movement detection system, comprising: means for transmitting a movement state; and means for specifying a cut point or section by the predetermined device when the signal line is disconnected due to movement of debris. 3. At least one coordinate positioning device for receiving a radio wave from an artificial satellite and positioning coordinates is installed, and by detecting that the installed coordinates of the coordinate positioning device have moved, the debris is moved. In the debris movement detection system for detecting the movement, a secondary battery provided in each of the at least one coordinate positioning device, and a predetermined device connected to the at least one coordinate positioning device by connecting wires in series to supply power A means for charging the secondary battery; a means for specifying a location or section of cutting by the predetermined device when the wire is cut by moving debris; and a power stored in the predetermined device being a predetermined value. If it decreases to
The power supply from the predetermined device to the coordinate positioning device is stopped, the predetermined device detects the movement of the debris only by cutting the wire, and the coordinate positioning device controls so as to perform the positioning by the power from the secondary battery. Means for detecting the movement of debris. 4. A pile having a hollow portion filled with oil, means for measuring an increase in the oil due to a volume change in the hollow portion, and means for measuring an outflow of oil due to breakage of the pile. Characteristic debris movement detection sensor. 5. A means for connecting a power supply line in series to a debris movement detection sensor for detecting the movement of debris from a predetermined device to supply power, and detecting the debris movement by superimposing a signal on the power supply line. Means for transmitting a signal relating to the movement of the debris detected by the sensor to the predetermined device; and means for specifying the location or section of the cut by the predetermined device when the power supply line is cut by the movement of the debris. A debris movement detection method characterized by the following. 6. A protective cover having a camera capable of receiving a radio wave from an artificial satellite and measuring coordinates by receiving a radio wave from an artificial satellite, and having a camera for photographing the surrounding scenery; Means for displaying a captured image, and means for lowering the protective cover and controlling the coordinate positioning device to drop from a predetermined height to the ground, comprising: a coordinate positioning device release control device. . 7. The control device according to claim 6, wherein said protective cover has means for measuring a distance from the ground by an ultrasonic sensor. 8. The control device according to claim 6, wherein a balloon filled with a buoyant gas is connected to the coordinate positioning device via an antenna line. 9. A protective cover having a camera capable of receiving a radio wave from an artificial satellite to measure coordinates by receiving radio waves from an artificial satellite, and having a camera for photographing the surrounding scenery, and lowering the protective cover from the flying object. Means, at a predetermined height from the ground, when the coordinate positioning device is landed on the ground using a string from the protective cover, and after landing, communicates with a predetermined device, and if communication is possible, Means for removing the cord from the protective cover, installing the coordinate positioning device on the ground, and, when communication is impossible, winding up the cord and collecting the coordinate positioning device to the protective cover. A coordinate positioning device dropping control device, characterized in that: 10. A drop-type coordinate positioning device comprising: means for receiving a radio wave from an artificial satellite to measure coordinates and means for vertically pointing an antenna when the antenna falls on the ground.