JPH03287073A - Wind speed monitor device - Google Patents

Abstract

PURPOSE:To measure an accurate wind speed by rotating a chopper which is coupled directly with a rotary shaft, detecting the number of pulses with constant width by a light breaker from the rotation of the chopper, and converting the number of pulses into a current. CONSTITUTION:The chopper 31 which have radial slits is mounted at the lower part of the rotary shaft 23. When the chopper 31 rotates, the light emitted by a photointerrupter (light breaker) 39 is cut off to generate pulses, which are sent to a current sending part 41. The pulses are corrected by the monostable multivibrator 45 of the sending part 41 to output pulses with the constant width and the pulses are inputted to a pulse-voltage converter 47. The converter 47 converts the pulses into a voltage which is proportional to the number of the input pulses and a current-voltage converter 49 outputs the current in proportion to the voltage. Consequently, the accurate wind speed can be measured without any malfunction.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a wind speed monitoring device that constantly monitors the wind speed along a railway line, for example.

(Prior Art) Conventionally, a wind speed monitoring device is composed of an anemometer oscillator and a receiver. In addition, some anemometer oscillators are known that have a generator attached to a rotating shaft directly connected to a windmill, such as a wind cup or propeller, and detect the wind speed by measuring the output voltage of this generator. ing.

However, in an anemometer transmitter using a generator, the voltage generated by the generator changes due to the influence of ambient temperature, and the output voltage decreases year by year due to the demagnetization characteristics of the magnet of the generator over time. Furthermore, due to frictional loads such as the brushes that extract the signal, the generator slows down at low wind speeds and its characteristics deteriorate. Since the output voltage output from the generator changes due to these causes, there is a problem in that the wind speed that is finally measured has an error with respect to the actual wind speed, making it impossible to accurately measure the wind speed.

In place of the anemometer transmitter using this generator, a pulse-type anemometer transmitter has been put into practical use.

(Problem to be solved by the invention) By the way, a pulse-type anemometer transmitter requires an optical interrupter (
Since the pulses generated by the photointerrupter are sent directly to the receiver as pulses, the problem is that the pulses do not reach far and cannot be sent accurately.

The purpose of this invention is to improve the above-mentioned problems by converting the pulses detected by the wind turbine into electric current and sending it out instead of directly sending them as pulses to the receiver, so that accurate wind speed can be measured and monitored. The purpose of the present invention is to provide a wind speed monitoring device.

[Structure of the Invention] (Means for Solving the Problems) In order to achieve the above object, the present invention provides an anemometer oscillator connected to a wind turbine and a terminal box provided near the anemometer oscillator. A wind speed monitoring device comprising a receiver placed in isolation from the wind speed monitoring device, the anemometer oscillator comprising:
The above-mentioned windmill is attached to the upper part of the main body to detect the wind speed, a chopper is directly connected to the rotating shaft integrated into the windmill, and a light cutoff device that cuts the light by rotating the chopper and detects the number of pulses of a constant width. and a current exit section that converts the number of pulses detected by the optical circuit breaker into a current and sends out the current, and any of the rotating shaft, the chopper, the optical circuit breaker, and the current transmitter are located within the main body. It was housed in a wind speed monitoring device.

The present invention also provides the above-mentioned wind speed monitoring device, comprising: a receiving section that receives the current from the receiver or the current sending section via a terminal box; and an alarm section that outputs an alarm when the wind speed exceeds a preset wind speed; It consists of a recorder that records the detected wind speed.

(Function) By employing the wind speed monitoring device of the present invention, a wind turbine is attached to the upper part of the main body of the anemometer oscillator. When the windmill rotates, a rotating shaft integrated with the windmill rotates, and a chopper directly connected to the rotating shaft rotates in the same direction. As the chopper rotates, the light emitted from the optical interrupter is cut off and a number of pulses with a constant width are detected.

The detected number of pulses is converted into a current and sent from the current sending section to the receiving section of the receiver via the terminal box, so accurate wind speed can be measured without causing malfunction.

In addition, since the rotating shaft, chopper, optical breaker, and current sending section are housed within the body of the anemometer oscillator, the anemometer oscillator itself can be made compact, and the wind speed f#I is not affected by external disturbances. do not have.

Furthermore, since the receiver is equipped with an alarm device and a recording section, it constantly monitors the wind speed, and when the wind speed exceeds a preset value, an alarm output is issued to notify an alarm.

(Example) Hereinafter, an example of the present invention will be described in detail based on the drawings.

Referring to FIG. 8, the wind speed monitoring device W1 includes an anemometer transmitter 3.
, a terminal box 5 provided in the vicinity of this anemometer transmitter 3, and a receiver 7 placed at a distance of approximately +a diameter from this terminal box 5, for example, at 25.

The anemometer transmitter 3 is provided on a flange portion 9F that is the upper part of the ball 9 erected on the ground G. More specifically, as shown in FIG. 7, the flange portion 11F, which is the lower part of the main body 11 of the anemometer transmitter 3, is fixed to the flange portion 9F of the pole 9 with a plurality of bolts 13. ing.

A hollow body 17 to which a plurality of wind cups 15, for example, wind turbines are attached radially, is inserted into the upper part of the body 11, and the nut 19 is tightened by hand to prevent rattling.
This nut [9] is firmly fixed with a windshield stopper nut 21 while being held down with a spanner to prevent further tightening.

As shown in FIG. 1, in the upper part of the main body 11, a rotating shaft 23, which is integrated with the wind cup 15, is provided extending in the vertical direction. This rotating shaft 23 is rotatably supported by a bearing 29 attached to the axis of a support member 27 supported by a plurality of bars 25 within the main body 11 .

As shown in FIGS. 1 and 2, the lower part of the rotating shaft 23 is equipped with a collar 31 made of, for example, a disk having a plurality of slits radially spaced at appropriate intervals. Fixed.

An L-shaped bracket 3 is provided on the lower surface of the support member 27.
5 is attached downward with a plurality of bolts 37 or the like.

This bracket 35 has a light interrupter (
Hereinafter, it will be referred to as a photo interrupter. ) 39 is fixed with a plurality of bolts, etc., and the chopper 31 is configured to be able to freely pass through the slit portion of the photointerrupter 39. Also, photo interrupter 3
One is configured such that, for example, light is emitted from the upper part of the slit part, and the light is received by the lower part of the slit part. Inside the main body 11, a current sending section 41 is attached to the support member 27 with a plurality of bolts.

With the above configuration, when the wind cup 15 is rotated by the wind, the rotating shaft 23 integrated with the wind cup 15 is rotated. Since the chopper 31 is attached to the rotating shaft 23, the rotation of the rotating shaft 23 is transmitted to the chopper 31.

When the chopper 31 is rotated, the photo interrupter 3
By cutting off the light emitted from 9, a pulse is generated, and this pulse is sent to the current sending section 41.

As shown in FIG. 3, a bottom cord connection terminal 43 is fixed to the bottom of the main body 11 with a plurality of bolts or the like. The terminal of this bottom cord connection terminal 43 is connected to the current sending section 41 and the seventh
It is also connected to the terminal box 5 shown in the figure.

As shown in FIG.
ivra-tor), a pulse/voltage converter 47, and a voltage/current converter 49 are connected in series.

With the above configuration, when a pulse of irregular width detected by the three photointerrupters is manually inputted to the monomulti 45, the pulse is corrected by the monomulti 45 and a pulse of constant width is output, and the pulse/voltage converter 47 is input. When a pulse of a constant width is input to this pulse-to-voltage converter 47, it is converted into a voltage proportional to the input pulse, outputs the voltage, and is input to the voltage-to-current converter 49.

When a voltage is input to this voltage/current converter 49, the voltage/current converter 49 outputs a current proportional to the input voltage.

The current output from these four voltage/current converters is input to the terminal box 5 via the bottom cord connection terminal 43. The terminal box 5 is used to check whether the wind cup 15 is operating normally or to check when a cable breakage occurs.

This terminal box 5, as shown in FIG.
It is composed of a wind speed indicator 51, a terminal 53, and a changeover switch 55. Terminal 53 No, 1° No. 2, + and - of the sending side coat, terminal 53 N.

43 and N014 are connected to 1+ of the receiving side court. The changeover switch 55 is always on the right side, and during testing or inspection, it is switched to the left side so that the wind speed can be checked with the pointer of the wind speed indicator 51.

After checking, it is preferable to switch the selector switch 55 to the right side. This is to prevent line breakage due to meter breakage during lightning protection.

The receiver 7, as shown in FIG. 5, is composed of a receiver 57, an alarm 59, a recorder 61, and an uninterruptible power supply 63. That is, the receiving unit 57 has an alarm device 59,
It is connected to the recorder 61, and the uninterruptible power supply 63 operates the receiving section 57 and the recorder 61 and is uninterrupted.

The receiving section 57 is equipped with a wind speed indicator 65,
The detected current I (...A) is input from the terminal box 5 to the wind speed indicator 65 via the cable Kj K2,
According to the formula I-8/60・WS+4, the wind speed WS (mi
s) is calculated and indicated to the wind speed indicator 65. When the current I is 4.12w^, the wind speed WS is 0.60m/s
becomes.

In addition, the receiving section 57 is equipped with a red lamp 67, for example, in case of a line failure, and when the red lamp 67 lights up,
It is determined that there is a line failure and is output to an output device such as a CTC (Centralized Train Control System!').

The five alarm devices placed near and connected to the receiver 57 include a power lamp 69, as shown in FIG.
Buzzer 71, buzzer push button 73.20i/s,
Lamp for 25ti/s, 35m/sm/75.77
．． 79 are provided. Furthermore, a comparison section is provided inside the alarm 59 to compare the actual wind speed WS sent out from the reception section 57 with a preset wind speed value of 20.25°30 m/s. The buzzer 71 on the device
, buzzer release button 73 and 20m/s, 25m
/s, 30m/s alarm lamps 75, 77, 79 are connected.

Therefore, the comparator shows that the actual wind speed WS is 20Ill/S.
When it is determined that the threshold value has been exceeded, the lamp 75 lights up in white, the buzzer 71 sounds slowly for about 2 seconds, and an output is sent to an output device (not shown). Also, if the comparator determines that the actual wind speed WS exceeds 25 m/s,
The lamp 77 lights up in yellow, and the buzzer 71 suddenly sounds, for example, for about 0.7 seconds, and is further output to an output device (not shown).

Alternatively, the comparator determines that the actual wind speed WS exceeds 30 m/s, the lamp 77 lights up in red, the buzzer 71 sounds continuously, and further output is sent to an output device (not shown). The buzzer 71 is kept on for about 10 seconds after the actual wind speed WS becomes lower than the alarm set value, and when the buzzer disconnection button 73 is pressed, the buzzer 71 is activated.
1 is designed to stop. In addition, even if the buzzer sound is stopped, when the actual wind speed WS falls below the set value and the alarm is canceled, the buzzer circuit will automatically return, and when the set value is exceeded again, the buzzer 71 will sound. It has become.

The recorder 61 connected to the receiver 57 is of a 1-ben automatic balancing type, and records the actual wind speed WS, for example, from 0 to
The voltage is converted to 5V and recorded.

Next, a cable K of, for example, 0.9φ is connected to a receiver 7 located remotely from the terminal box 5.

The reason why R2 allows accurate transmission of current without fluctuation will be explained. In FIG. 5, a wind speed indicator 65 of the receiver 7, an alarm 59, and a recorder 61 are connected in series to the cable R2, and the actual wind speed indicated by the wind speed indicator 51 in the terminal box 5 is connected in series to the cable R2. The current is lo, the signal source resistance is 70
, Cable K.

The resistance of R2 is γ 1 γ 2 (R 1 2 : K
.

R2 length), wind speed indicator 65, alarm 59, recorder 6
Assuming that the resistance of 1 is R+ R2, R3, and the current of the transmission line is .

However: R-γfL+ +γhi2 +RI +R2+
R3 In the above equation (1), the first term in the denominator is generally called the load resistance R, and the signal source resistance γ0 is, for example, IMΩ or more,
If the load resistance R is, for example, 500Ω or less, the signal source resistance γ0 is sufficiently large compared to the load resistance R (γ
0)R), the above formula (]) is 1-Jo
...(2).

Therefore, the receiving section 57 receives the measured current 10 regardless of the input resistance of other receivers or the transmission line resistance.
7, the current can be measured as 0. According to the results of experiments conducted so far, the transmission distance (JL fL2) between the terminal box 5 and the receiving section 57 on the transmission path can be accurately transmitted without fluctuation up to 28 km.

A rotating shaft 23, a chopper 31, a photointerrupter 39, and a current sending section 41 are included in the main body 11 of the anemometer oscillator.
Since the anemometer oscillator 3 itself is housed in the anemometer oscillator 3, the anemometer oscillator 3 itself can be made compact, and wind speed measurement is not affected by external disturbances.

Further, since the receiver 5 is equipped with a wind speed indicator 65, five alarms, and a recorder 61, it can constantly monitor the wind speed and issue an alarm output to notify an alarm. Therefore, by knowing the alarm, the next action can be taken quickly.

Note that this invention is not limited to the embodiments described above, and can be implemented in other forms by making appropriate changes. In this embodiment, the wind cup 15 is used as a wind turbine.
Although the example has been explained using a propeller, it is also possible to use a propeller or the like.

[Effects of the Invention] As understood from the above description of the embodiments, according to the present invention, a wind turbine is attached to the upper part of the main body of the anemometer oscillator. When the windmill rotates, a rotating shaft integrated with the windmill rotates, and a chopper directly connected to the rotating shaft rotates in the same direction. As the chopper rotates, the light emitted from the optical interrupter is cut off and a number of pulses with a constant width are detected. The detected number of pulses is converted into a current and sent from the current sending part to the receiving part of the remotely located receiver via the terminal box, so accurate wind speed can be measured without causing malfunction. can do.

In addition, since the rotating shaft, chopper, optical interrupter, and current exit section are housed within the main body of the anemometer oscillator, the anemometer oscillator itself can be made compact, and wind speed measurement is not affected by external disturbances. It can be measured.

Furthermore, since the receiver is equipped with an alarm device and a recording section, it constantly monitors the wind speed, and when the wind speed exceeds a preset value, an alarm output is issued to notify an alarm.

[Brief explanation of drawings]

FIG. 1 shows the main parts of the present invention, and FIG. 7 is an enlarged sectional view taken along the line I in FIG. 7. FIG. 2 is a sectional view taken along the line ■-■ in FIG. Figure 4 is a block diagram of the anemometer oscillator, Figure 5 is a block diagram of the terminal box and receiver, Figure 6 is a front view of the alarm, and Figure 7 is a cross-sectional view taken along the line ■-■. 8 is an enlarged view of the section viewed from the arrow ■ in FIG. 8, and FIG. 8 is a schematic diagram showing an embodiment of the wind speed monitoring device of the present invention. 1... Wind speed monitoring device 3... Anemometer oscillator 5.
... Terminal box 7 ... Receiver 11 ... Main body 15 ... Wind cup 23 ... Rotating shaft 31.
...3 choppers...photo interrupter 41.
...Current sending section 57...Receiving section 5 pieces...Alarm device 6 pieces...Recorder

Claims (2)

[Claims] (1) A wind speed monitoring device consisting of an anemometer oscillator connected to a wind turbine and a receiver placed in isolation via a terminal box provided near the anemometer oscillator, wherein the anemometer oscillator The windmill is attached to the top of the main body to detect the wind speed, the chopper is directly connected to the rotating shaft integrated into the windmill, and the chopper rotates to cut off the light and detect the number of pulses with a constant width. It consists of an optical interrupter, and a current sending section that converts the number of pulses detected by the optical interrupter into an electric current and sends out the current. A wind speed monitoring device characterized by being housed within the main body. (2) In claim (1), the receiver includes a receiving section that receives the current from the current sending section via a terminal box, and an alarm section that outputs an alarm when the wind speed exceeds a preset wind speed; A wind speed monitoring device comprising: a recorder for recording detected wind speed.