JP2662661B2 - Cableway shake detector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

This invention relates to the field of cableways,
The present invention relates to a shake detection device for detecting a lateral shake of a carrier when the carrier passes through a support in a cableway.

[0002]

2. Description of the Related Art A conventional detecting device for detecting a lateral shake of a transporter includes a detector for detecting a deflection angle or a deflection displacement of a transporter suspended from a cable, and a detector for detecting a deflection signal from a transporter as a radio wave. And a transmitter for outputting. In this way, the measurement radio wave transmitted from the carrier is received by the receiver provided on the fixed side such as a berth or a support and returned to the original measurement value, and the value is compared with the comparator. A device that activates the alarm device, an image sensor is installed in the middle of the cableway, and the carrier is photographed.Based on this image, numerical analysis is performed to calculate the amount of shake of the carrier, and furthermore, the reference value A device has been proposed which activates an alarm in the same way as the above-mentioned device when the value exceeds.

[0003]

However, although the former device can always detect the deflection of the transporter, it must be provided with a detector and a transmitter for each transporter, and the device is expensive in a gondola lift having a large number of transporters. Become. Since the measurement signal of the detector is transmitted as a radio wave, there is a problem that the measurement signal is easily affected by disturbance.

[0004] Next, the latter one converts the image of the carrier taken by the image sensor into a numerical value, recognizes the shape, and calculates its displacement, thereby detecting the shake of the carrier and exceeding the reference value. If the alarm is activated, the calculation is performed while the carrier is moving, so a very high-speed computer is required, and the calculation software becomes complicated and expensive. There was a problem. An object of the present invention is to provide a shake detector for a transporter which does not become such a complicated and expensive device.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides an ultrasonic displacement sensor for measuring a distance between a carriage and a carriage along a passageway of the carriage in a cableway, a determining unit a size of the measurement interval is entered and set interval, the relay opens and closes by a signal from the determiner, before
Display that displays the measurement interval measured by the ultrasonic displacement sensor
Between the instrument and the carrier being measured is the closest approach.
The closest value hold amplifier to be held and the closest distance
Consists closest value display for displaying, the carriage is the determination
So as to actuate the safety device when closer interval set in vessel.

[0006]

A strut provided with a cable receiving device for supporting a rope on which a carriage is suspended is provided upright at predetermined intervals along the cableway line. When the carriage passes through this pillar with the movement of the cable, it shakes greatly due to wind or other disturbance, and if the carriage contacts or collides with the pillar while moving, it is very dangerous and leads to a serious accident There is fear.

In order to prevent such an accident, the present invention attaches a non-contact type ultrasonic displacement sensor to the side of the support at a position corresponding to the height at which the carrier passes, and adjusts the distance between the support and the support passing therethrough. Measure sequentially. The measurement interval output by the ultrasonic displacement sensor is input to the determiner. On the other hand, the closest approach interval that is considered safe is set in the determiner. The measured value measured by the ultrasonic displacement sensor is compared with the closest approach interval, and if the value exceeds the closest approach interval, a lamp of an alarm device as an example of a safety device is turned on, Sound a buzzer to alert the operator. Separately, by inputting the measurement interval measured by the ultrasonic displacement sensor during operation to the closest-appropriate value hold amplifier, and displaying the distance from the carrier closest to the support until the end of operation on the display unit The operator is provided with a criterion for determining whether or not the vehicle can be driven.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the embodiments shown in FIGS. FIG. 1 is a front view showing a situation in which the carrier 1 passes through a pillar on an up line or a down line as viewed from the cableway direction.

A cable receiving device 6 is attached to an end of a column arm 11 made of a square steel pipe of a column 10 erected in a cableway line with a bracket 8. In the cable receiving device 6, the cable 5 is movably supported by rotatable receiving wheels 7,7. Next, as shown in FIG. 1, the transporter 1 is composed of a towing machine 4, a passenger car 2, and a suspension machine 3. It is operated along the cableway track.

Next, at the position corresponding to the passenger car 2 of the carriage 1 on both sides of the column 10, the carriages 1, 1,... , And ultrasonic displacement sensors SC, SC. The ultrasonic displacement sensor SC is a non-contact type length measuring device using ultrasonic waves. Next, FIG. 2 is a block diagram showing a processing path of a measurement interval obtained by measuring an interval between the transporter 1 and the column 10 by the ultrasonic displacement sensor SC provided on the column 10 shown in FIG.
Hereinafter, each device shown in the block diagram of FIG. 2 will be described. First, the ultrasonic displacement sensor SC measures the interval between the column 10 and the carrier 1 and outputs the measurement interval. Next, the determiner JAPAN connected to the ultrasonic displacement sensor SC has a function of setting the closest approach interval DC as a safe range and determining the magnitude of the input measurement interval. . An alarm device EC, which is an embodiment of a safety device including a relay R, a lamp L, and a buzzer BZ, is connected to the end of the alarm device EC. Next, the measurement interval that has passed through the determiner JAPAN is transmitted to the display LDP. At this time, a separate measurement interval is input to the measurement section command amplifier TRV, and the support 1
It is determined whether or not the carrier 1 has passed through the set monitoring section based on 0, and a passing signal is output to the display LDP. Thus, the measurement interval of the ultrasonic displacement sensor SC is numerically displayed on the display LDP until the carrier 1 passes through the column 10 and the next carrier 1 is detected. Next, the measurement interval previously output from the above-described measurement section command amplifier TRV is input to the closest approach value hold amplifier PH, and when the carrier 1 and the support 10 become the closest approach interval during operation, The measurement interval is held, and further transmitted to the closest value indicator PDP, and the closest interval is numerically displayed.

Next, the operation of the apparatus for detecting a shake of a transporter according to the present invention having the above-described structure or configuration will be described with reference to the sequence diagram of FIG. 3 and the flowchart of FIG. First, in step S1, the transporter 1 approaches the support 10 having the ultrasonic displacement sensor SC, and the ultrasonic displacement sensor S
Enter the measurable range of C. Next, in step S2, the ultrasonic displacement sensor SC starts measuring the distance between the carrier 1 and the support 10. Next, in step S3, the measurement interval of the ultrasonic displacement sensor SC is output from the determiner JAP and input to the measurement section command amplifier TRP. Here, Carrier 1
A monitoring section is set along with the movement of the vehicle, and a passing signal is continuously output until the carrier 1 passes through the monitoring section, and the measured numerical value is sequentially displayed on the display LDP according to the change. Next, in step S4, the measurement interval of the ultrasonic displacement sensor SC is input to the determiner JAPAN. This judge JA
For P, the safest approach distance DC shown in FIG. 1 is preset and compared with the input measurement interval from the ultrasonic displacement sensor SC. 3
As shown in the sequence diagram, the relay R of the alarm device EC is closed and self-holds, the lamp L is turned on, and
When the buzzer BZ sounds, the lateral swing of the transporter 1 is changed to the support 1
It is larger than the closest approach distance DC to zero, and the driver is warned that driving is in a dangerous state.
Next, in step S8, the operator enters the reset push button RS.
By pressing, the relay R of the alarm device EC is opened in the sequence diagram shown in FIG. 3, the lamp L is turned off, and the buzzer BZ is stopped. Next, in step S9, if the operation staff determines that continuation of the operation is dangerous,
Slow down or stop operating. The above-mentioned alarm device EC
Can be automatically stopped if the relay R is connected to a safety circuit of a driving device of the transporters 1, 1,... As a safety device.

In step S4, if the transporter 1 passing through the column 10 does not swing from the normal position 1a beyond the approach position 1b, the measured interval is directly displayed on the display LDP as a numerical value. Next, in step S6, the measurement ends when the next transporter 1 is detected by the measurement interval command amplifier TRV. Further, even if the carrier 1 which has been symmetrically measured passes through the column 10, the interval measured at that time is continuously displayed on the display LDP as a numerical value. Next, in step S9, the operation staff continues the operation of the transporters 1, 1,..., And returns to step S1 again, and continuously performs the operation of detecting the lateral vibration of the next transporter 1 passing through the support post 10.

In step S3, as shown in the block diagram of FIG. 2, the ultrasonic displacement sensor SC is operated during operation.
Is stored in the closest-approach value hold amplifier PH, and furthermore, the closest-approach value display PDP displays a numerical value.

However, if it is desired to temporarily delete the closest approach interval stored in the closest approach value hold amplifier PH due to a change in environment such as weather conditions during driving, the clear push button of the closest approach value hold amplifier PH is used. Press CR. By doing so, the closest approaching interval measured by the ultrasonic displacement sensor SC thereafter is stored again, and the numerical value is displayed on the peak indicator PDP.

In cableway equipment constructed in mountainous areas, there are places where wind strongly blows depending on the topography and places where wind does not blow so much in the cableway track. Therefore, the transporters 1, 1,... Also have a place where the vehicle shakes largely due to the effect of the wind and a place where the shake does not occur. Therefore, the carrier shake detection device of the present invention attaches an ultrasonic displacement sensor to a column that is erected at the place where the wind blows strongly, constantly measures the interval between the column and the carrier that passes, and monitors it. It is designed to operate safe cableway equipment.

[0016]

According to the present invention, the apparatus for detecting run-out of a cableway on a cableway is provided with an ultrasonic displacement sensor mounted on a column standing in a place where the wind is particularly strongly blown in the cableway line and the carrier is likely to sway laterally.
The distance between the column and the carrier passing through the column is constantly monitored. Further, when the lateral movement of the transporter exceeds the safe range, a lamp of an alarm device, which is one of the safety devices, is turned on and a buzzer sounds to give an alarm. In this way, the operator reduces the operating speed of the transporter or temporarily stops the transporter, thereby preventing a serious accident in which the transporter contacts or collides with the support beforehand.

The non-contact type ultrasonic displacement sensor for detecting the lateral deflection of the carriage is mounted on the column on the fixed side of the cableway detector according to the present invention, which operates as described above. Since the measurement interval can be transmitted by the cable, the operation of the detection device becomes accurate and the safety of the operation of the carrier is further improved in terms of reliability because the measurement is less affected by disturbance. Further, since it is not necessary to provide a displacement sensor and a transmitter in each carrier, there is also an economical effect that the detection device becomes cheaper.

[Brief description of the drawings]

FIG. 1 is a front view showing a state in which a lateral shake of a carrier passing through a support is detected by a shake detector of the present invention.

FIG. 2 is a block diagram showing a processing progress of a measurement interval measured by an ultrasonic displacement sensor.

FIG. 3 is a sequence diagram for sounding a lamp and a buzzer of an alarm device by a relay built in the determination unit of the block diagram shown in FIG. 2;

FIG. 4 is a flowchart illustrating the operation of the shake detector of the transporter according to the present invention and the operation procedure of an operator.

[Explanation of symbols]

 1, 1 ... Carrier 1a Normal position 1b Approaching position 2 Passenger car 3 Suspension machine 4 Handholding machine 5 Cable 6 Cable receiving device 7, 7, ... Cable receiving ring 8 Bracket 10 Support 11 Support arm 20 Arrow SC Ultrasonic displacement sensor Jap judge LDP display TRV Measurement interval command amplifier PH Closest value hold amplifier PDP Closest value display NFB No fuse breaker CR Clear push button RS Reset push button R Relay EC alarm device S1-S9 Step DN Normal interval DC Closest interval

Claims (1)

(57) [Claims] Claims: 1. A cable carrier is provided along a passageway of a carrier in a cableway.
Ultrasonic displacement sensor that measures the interval with the carrier, and a determiner that determines the magnitude of the set interval and the input measurement interval,
A relay for opening and closing operation by a signal from the determiner, the greater
Display that displays the measurement interval measured by the acoustic displacement sensor
And the closest approach interval when the carrier under measurement is closest.
The closest approach value hold amplifier and the closest approach interval
Consists Shimesuru closest value display, the carriage is the determination instrument when closer set intervals to <br/> features that it has to operate the safety device cableway of carriage motion detecting device