JPS61250579A - System for detecting trouble of rain gauge - Google Patents

Abstract

PURPOSE:To make it possible to detect the trouble of a rain gauge, by arranging a detection turnover measure to the lower part of a turnover measure and utilizing that the turnover direction of the turnover measure is different from that of the detection turnover measure when the turnover measure performs no predetermined turnover operation. CONSTITUTION:A turnover measure 3 constituted of measure parts 3A, 3B is mounted to a container 1 so as to be swingable around a fulcrum 4. A detection turnover measure 10 has the almost same shape as the turnover measure 3 and arranged under the turnover measure 3. When the turnover measure 3 is normally operated, for example, the measure part 3B receives rainwater and, when a predetermined amount of rainwater is accumulated, the measure part 3A is turned over to the side of the measure part 3B. At this time, a switch (S)7 is turned ON and a counter 21 counts that the measure 3 was turned over once. The rainwater drained from the measure part 3B is flowed in a detection measure part 10B and a detection circuit 15 comes to a closed state. When the turnover measure 3 is out of order, for example, even if a predetermined amount of rainwater is accumulated in the measure part 3A, no turnover is generated and rainwater is overflowed to be made to flow in a detection measure part 10A. At this time, the circuit 15 is opened and the trouble of a rain gauge 20 can be detected.

Description

[Detailed Description of the Invention] [Summary] A detection tipping cell is installed below the tipping cell, and if the tipping cell does not tip over in a specified manner, the falling direction of the tipping cell and the detection tipping cell are different. , which enables failure detection of rain gauges.

[Industrial application field]

The present invention relates to a failure detection method for a fall-down type rain gauge.

A tipping type rain gauge is equipped with a tipping basin that is configured to tip over due to the weight of the rain when a predetermined amount of rain falls, and measures the amount of precipitation, the strength of the rain, etc. by counting the number of times the tipping basin falls over. It is a rain gauge.

Such a fall-down type rain gauge cannot perform measurements unless the fall-down basin is turned over in a predetermined manner. Therefore, it is desirable to be able to easily and quickly check indoors, for example, at a measurement center, whether or not the overturning cell is operating normally.

[Conventional technology]

FIG. 3 is a sectional view of a conventional rain gauge, in which a cylindrical container 1 with a predetermined cross-sectional area is installed vertically, the top plate of the container 1 is formed into a funnel shape, and a water receiving port 2 is provided. Corresponding to the hole in the center of the water receiving port 2, an overturning basin 3 is swingably mounted inside the container 1.

The overturning box 3 has an umbrella shape in side view, has a fulcrum 4 at a desired position on the handle, and has a center of gravity above the fulcrum 4.

The head of the overturning basin 3 is open at the top, and a basin is formed to collect rainwater flowing in from the hole of the water receiving port 2 and to enable measurement.

This cell is partitioned by a partition plate, and is equally divided into a first cell section 3A and a second cell section 3B on the left and right.

When a predetermined amount of rainwater (for example, 0.5 m, 1 mm of rainfall) accumulates in one of the cell sections, for example, the second cell section 3B, the tipping cell 3 swings and falls toward the second cell section 3B. Second box 3
It is configured so that rainwater B is drained into a second drain pipe 5B and discharged outside the container l via a drain port 6.

Then, with the tipping basin 3 tipped over to the second basin part 3B side, the first basin part 3A is located directly below the hole of the water receiving port 2, and the first basin part 3A is located directly below the hole of the water receiving port 2.
The rainwater is collected in the square section 3A. There is a predetermined amount of rainfall, and the first
When a predetermined amount is accumulated in the first cell 3A, the overturning cell 3 moves to the first cell 3A.
It swings to the side and falls over to drain the rainwater in the first basin 3A to the first drain pipe 5A. In this way, each time a predetermined amount of rain falls, the first cell section 3A and the second cell section 3B alternately repeat the overturning operation.

Therefore, by measuring the number of times the overturning cell 3 falls over, it is possible to measure the amount of rainfall at the location where the rain gauge is installed.

In order to measure the number of falls, a switch 7 is installed that turns on when the falling state switches from side to side.

The switch 7 is, for example, a reed switch, and is mounted at a position directly below the lower end of the handle of the overturning cell 3 when the handle is in a vertical state. Further, a permanent magnet for driving the switch 7 is attached to the lower end of the handle of the overturning cell 3.

Therefore, each time the overturning cell 3 overturns from left to right or from right to left, the switch 7 is turned on one by one to generate a pulse signal, which can be reported to the counter at the measurement center.

A tipping cell rain gauge is a rain gauge that measures the amount of rainfall by counting the number of times a tipping cell falls over, as described above.

[Problem that the invention seeks to solve]

However, the conventional rainfall gauge mentioned above has a malfunctioning overturning gauge,
If the rain gauge does not fall over, it is difficult to determine whether there is no rain or whether the rain gauge is malfunctioning, especially if rainfall is measured remotely using a telemeter device, as the local rainfall situation is unknown in a remote location. The problem is that it cannot be done.

[Means for solving problems]

In order to solve the above conventional problems, the present invention provides a switch 7 for detecting the number of falls of the overturning cell 3, and a switch 7 installed on both sides of the switch 7, as shown in FIGS. 1 and 2. a first side switch 12 that detects the falling state of the
A and the first side switch 12A are installed below the overturning cell 3, and when the overturning cell 3 is operating normally, water is drained from each cell part of the overturning cell 3 via a drain pipe. a detection overturning cell 10 having a pair of detection cell portions configured to directly receive rainwater overflowing from each cell portion and fall over when the fall cell 3 does not tip over; A first detection-side side switch 13A and a second detection-side side switch 13B which form a pair opposite to each other detect the overturning state of the overturning cell 10, and a first side switch 12A and a second detection side switch connected in series. Side side switch 13B
and a detection circuit 15 formed by connecting a second side switch 12B and a second detection side switch 13B connected in parallel in series, and detecting whether the detection circuit 15 is on or off. It is designed to judge whether the operation of the cell 3 is good or bad.

[Effect]

According to the means of the present invention, when the overturning basin 3 is operating normally, when a predetermined amount of rainwater accumulates in the basin, the overturning basin 3 is overturned, and the water is drained through the drain pipe to the corresponding detector. The water flows into the detection cell of the overturning cell 10. Therefore, the detection overturning cell 10
follows the rocking motion of the overturning cell 3 and overturns in the same direction.

Therefore, both the side switch corresponding to this cell and the detection side switch are on, and the detection circuit 15 is in a closed state. That is, it can be confirmed at the measurement center that the overturning cell 3 is in a normal state by, for example, turning on a green lamp.

If the overturning cell 3 is out of order, the overturning cell 3 will not overturn even if a predetermined amount of rainwater accumulates in the cell. As a result, rainwater overflows from the cell and directly flows into the corresponding detection cell. Therefore, the detection overturning cell 10 overturns in the direction opposite to the overturning direction of the overturning cell 3, and the detecting side switch on the overturning side is turned off.

Therefore, by opening the detection circuit 15 and, for example, turning on a warning lamp, it is possible to detect that the rain gauge 20 has failed at the measurement center.

〔Example〕

The present invention will be specifically explained below with reference to illustrated examples. Note that the same reference numerals refer to the same objects throughout the plan.

FIG. 1 is a sectional view of one embodiment of the present invention, in which (a) shows a normal state, (b) shows a faulty state, and FIG. 2 is a circuit diagram.

In FIG. 1, the head has a first square part 3A and a second square part 3.
The overturning cell 3, which includes B, is mounted at a desired position on the container 1 so as to be swingable about a fulcrum 4 at a desired position on the handle.

The container 1 has a first container corresponding to the first container 3A of the overturning container 3.
A second drain pipe 5A is attached to the second drain pipe 5B corresponding to the second basin part 3B, and when the tipping basin 3 falls over, the drainage from the first basin part 3A is transferred to the first basin part 3B. The drain pipe 5A is configured such that the second drain pipe 5B receives the water drained from the second basin portion 3B.

Note that outflow holes are provided at predetermined height positions at the tips of the first and second cell portions 3A and 3B, so that even if a predetermined amount or more of water accumulates in each cell alternately, it will not fall over. If the cell 3 does not fall over, that is, if the cell 3 does not operate normally,
Overflowing from this outflow hole, the corresponding detection cell portions of the detection overturning cell 10, that is, the first detection cell portion 10A and the second detection cell portion 10A,
The water flows directly into the respective detection cells 10B.

For example, the switch 7, which is a reed switch,
When the handle is in a vertical position, it is mounted directly below the lower end of the handle. Further, a permanent magnet is attached to the lower end of the handle of the overturning cell 3.

On one side of the switch 7, there is a first side switch 12A that is turned on when the first basin 3A is receiving rainwater.
(for example, a reed switch), and on the other side there is a second switch that is turned on when the second cell part 3B is receiving rainwater.
A side switch 12B (for example, a reed switch) is installed.

The detection overturning cell 10 has almost the same shape as the overturning cell 3, is installed below the overturning cell 3, swings about a fulcrum 11, and detects water when it is poured into each detection cell. It is designed to fall in the opposite direction.

A first detection cell 10A is provided corresponding to the first cell 3A of the falling cell 3, and a second detection cell 10B is provided corresponding to the second cell 3B.

In addition, each detection cell receives overflow water from the tipping cell as described above, and the first detection cell 1
0A indicates the drainage from the first drainage pipe 5A, and the second detection cell 10
B is configured to receive drainage from the second drain pipe 5B.

Further, a permanent magnet is attached to the lower end of the handle of the detection overturning cell 10, and the detection overturning cell 10 is attached to the second detection cell part 10B on one side corresponding to the permanent magnet. A first detection-side side switch 138 (for example, a reed switch) that is turned on when the device is falling on the other side is installed on the other side.
A second detection-side side switch 13B (for example, a reed switch) that is turned on when the device is falling is disposed on the side of the first detection cell 10A.

The respective switches installed as described above are connected as shown in FIG.

That is, the switch 7 is connected to the telemeter device 22 via the counter 21, and the first side switch 1 in series connection
2A and the second detection side switch 13B, and the series-connected second side switch 12B and second detection side switch 13B are connected in parallel to form the detection circuit 15. The detection circuit 15 is connected to a telemeter device 22 via a delay circuit 23.

Since the present invention is configured as described above, when the overturning cell 3 is operating normally, for example, as shown in FIG. 1(a),
First, the second cell section 3B receives rainwater, collects a predetermined amount of rainwater, and the tipping cell 3 falls toward the second cell section 3B.

At this time, the switch 7 is turned on, and the counter 21 counts that the overturning cell 3 has been overturned once. Further, the first side switch 12A is switched from off to on.

On the other hand, since the overturning basin 3 is tipped over to the second basin part 3B side, the rainwater discharged from the second basin part 3B is transferred to the second drain pipe 5B.
Flows into the second detection cell 10B through the.

Therefore, the detection overturning cell 10 follows the swinging movement of the overturning cell 3 and falls toward the second detection cell section 10B.

Therefore, the first detection side switch 138 is turned on, the first side switch 12A and the first detection side switch 13A are both turned on, and the detection circuit 15 is in a closed state. That is, the delay circuit 23 indicates that the overturning cell 3 is in a normal state. This can be confirmed at the measurement center via the telemeter device 22, for example by turning on a green lamp.

Note that since the detection overturning cell 10 falls later than the overturning cell 3, a delay circuit 23 is provided to prevent the detection circuit 15 from opening immediately during this period.

If the overturning basin 3 is out of order, even if a predetermined amount of rainwater accumulates in the first basin 3A, as shown in FIG. 1(b), for example.

Falling box 3 does not fall. As a result, the first cell 3
Rainwater overflows from the outflow hole A and directly flows into the first detection cell 10A. Therefore, the detection overturning cell 10 is in the opposite direction to the overturning cell 3, that is, the first detection cell section 1
〇Falled in eight directions, first detection side switch 13A
is turned off. Note that in this state, the second side switch 12B is also off.

Therefore, the detection circuit 15 opens and the telemeter device 22
It is possible to detect that the rain gauge 20 is out of order at the measurement center by, for example, turning on a warning lamp.

〔Effect of the invention〕

As explained above, the present invention is a low-cost device with a relatively simple configuration in which a detection overturning cell is provided in correspondence with the overturning cell.
This has the excellent effect of being able to easily detect a rain gauge failure in a remote location.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of one embodiment of the present invention, (a) shows a normal state, (b) shows a faulty state, Fig. 2 is a circuit diagram, and Fig. 3 is a sectional view of a conventional rain gauge. It is. In the figure, 1 is a container, 2 is a water inlet, 3 is an overturning basin, 3A is a first basin, 3B is a second basin, 5A is a first drain pipe, 5B is a second drain pipe, 7 is a switch, 10 is a detection overturning cell, 10A is a first detection cell, 10B is a first detection cell, 12A is a first side switch, 12B is a second side switch, 13A is a first detection 13B is a second detection side switch, 21 is a counter, and 22 is a telemeter device.

Claims (1)

[Claims] A switch (7) that detects the number of times the overturning cell (3) falls;
a first side switch (12A) and a second side switch (12B) installed on both sides of the switch to detect the overturning state of the overturning cell; and a second side switch (12B) installed below the overturning cell (3); When the overturning cell is operating normally, it receives water from the cell through the drainage pipe and falls over, and when the cell does not tip over, it overflows from the cell. A detection tipping cell (10) having a pair of detection cell portions configured to fall over when directly exposed to rainwater, and a first detection side switch (10) for detecting the tipping state of the detection tipping cell (10). 13A), and a second detection side switch (13B), the first side switch (12A) and the first detection side switch (13A) connected in series, and the second side switch connected in series. It is equipped with a detection circuit (15) formed by connecting the switch (12B) and the second detection side switch (13B) in parallel, and by detecting whether the detection circuit (15) is on or off, A failure detection method for a rain gauge, characterized by determining whether the overturning basin 3 is functioning properly.