CN110553613A - passenger conveyor stopping distance measuring device - Google Patents
passenger conveyor stopping distance measuring device Download PDFInfo
- Publication number
- CN110553613A CN110553613A CN201910445325.3A CN201910445325A CN110553613A CN 110553613 A CN110553613 A CN 110553613A CN 201910445325 A CN201910445325 A CN 201910445325A CN 110553613 A CN110553613 A CN 110553613A
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- Prior art keywords
- passenger conveyor
- stopping distance
- stopping
- measuring device
- stop
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B31/00—Accessories for escalators, or moving walkways, e.g. for sterilising or cleaning
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Escalators And Moving Walkways (AREA)
Abstract
An embodiment of the invention relates to a passenger conveyor stopping distance measuring device, which can easily measure the stopping distance of a passenger conveyor without error. The passenger conveyor stopping distance measuring device of the embodiment is provided with an acceleration detecting part and a calculating part. The acceleration detection unit detects an acceleration signal of the passenger conveyor. The calculation unit detects the deceleration start and stop states of the passenger conveyor based on the acceleration signal detected by the acceleration detection unit, and calculates and outputs the stop distance of the passenger conveyor by calculating the time from the deceleration start to the stop state and the acceleration signal.
Description
The present application is based on and enjoys priority from japanese patent application 2018-105614 (application date: 2018, 5/31). This application incorporates by reference the entirety of this application.
Technical Field
An embodiment of the present invention relates to a passenger conveyor stopping distance measuring device.
Background
Currently, there is provision in japanese national institutes of construction bulletin No. 1424: the stopping distance of a passenger conveyor such as an escalator is within the range of an inspection standard (the stopping distance is 100 to 600mm in the case of 30m/min when no load is raised). Conventionally, an emergency stop button is pressed at a timing when a step passes a specific point, and a stop distance is measured by a measuring instrument or the like. Alternatively, a switch for operating the safety circuit is provided in the handrail portion, a bracket for operating the switch is provided in the step, and the distance from the operation of the switch to the stop is measured by a measuring instrument or the like.
However, in such a conventional timing method, the variation in the inspection based on the operation and experience of the maintenance worker is large. When the rated speed of the passenger conveyor is 30m/min, for example, and the timing is deviated from 0.2 second, the steps move by 100mm, the measurement error is large, and there is a problem that it is difficult to accurately measure the distance.
In addition, when the switch is arranged on the railing, the following operations are carried out: the landing plate of the passenger conveyor is opened, the switch wiring is connected to the safety circuit, and the switch and the bracket are fixed to the rail portion and the step portion of the passenger conveyor. Therefore, preparation of the measurement work takes time, and there is a problem that it is difficult to perform the measurement work within a limited inspection time.
disclosure of Invention
The invention provides a passenger conveyor stopping distance measuring device which can easily measure the stopping distance of a passenger conveyor without error.
The passenger conveyor stopping distance measuring device of the embodiment is provided with an acceleration detecting part and a calculating part. The acceleration detection unit detects an acceleration signal of the passenger conveyor. The calculation unit detects the deceleration start and stop states of the passenger conveyor based on the acceleration signal detected by the acceleration detection unit, and calculates and outputs the stop distance of the passenger conveyor by calculating the time from the deceleration start to the stop state and the acceleration signal.
According to the passenger conveyor stopping distance measuring device with the above-described structure, the stopping distance of the passenger conveyor can be easily measured without an error.
Drawings
Fig. 1 is a block diagram of a passenger conveyor stopping distance measuring device according to embodiment 1.
Fig. 2 is a flowchart showing the flow of the work of determining the quality of the passenger conveyor based on the stopping distance using the passenger conveyor stopping distance measuring device according to embodiment 1.
Fig. 3 is a flowchart for explaining an operation of calculating the stopping distance of the passenger conveyor in the passenger conveyor stopping distance measuring device according to embodiment 1.
Fig. 4 is a diagram for explaining an operation of a calculation unit provided in the passenger conveyor stopping distance measuring device according to embodiment 1.
Fig. 5 is a block diagram of the passenger conveyor stopping distance measuring device according to embodiment 2.
Fig. 6 is a block diagram of the passenger conveyor stopping distance measuring device according to embodiment 3.
Detailed Description
Hereinafter, a passenger conveyor stopping distance measuring device according to an embodiment will be described in detail with reference to the drawings.
[ embodiment 1 ]
(construction of passenger conveyor stopping distance measuring device)
Fig. 1 is a block diagram showing a configuration of a passenger conveyor stopping distance measuring device 1 according to embodiment 1. As shown in fig. 1, the passenger conveyor stopping distance measuring device 1 according to embodiment 1 includes an input unit 11, a calculation unit 12, an acceleration detection unit 13, a storage unit 14, and a display unit 15.
The passenger conveyor stopping distance measuring device 1 is a measuring device that can be carried and transported by a maintenance worker. As an example, a portable terminal such as a smartphone, a tablet terminal, or a notebook personal computer device can be used as the passenger conveyor stopping distance measuring device 1. When the stopping distance of a passenger conveyor such as an escalator or a horizontal escalator is measured by the passenger conveyor stopping distance measuring device 1, the passenger conveyor stopping distance measuring device 1 is installed on a step near the starting point in the traveling direction in a state where the passenger conveyor is stopped.
When the passenger conveyor stopping distance measuring device 1 is provided, it is preferable to provide an appropriate cushion member (anti-slip member) or the like between the step and the passenger conveyor stopping distance measuring device 1 so as not to cause the passenger conveyor stopping distance measuring device 1 to slip down when the step is accelerated or decelerated.
The input unit 11 is, for example, a keyboard, a mouse device, a touch panel, an operation button, or an input device such as a voice. The maintenance worker operates the input unit 11 to select a model of the passenger conveyor and the like (input model data), input a setting building, a unique number, and the like, and input an instruction to shift the passenger conveyor stopping distance measuring device 1 to the measurement mode.
The acceleration detection unit 13 is, for example, a 1-axis to 3-axis acceleration sensor. However, when the passenger conveyor is an escalator, since the steps move in the oblique direction, it is preferable to use an acceleration sensor having 2 or more axes. In the case of a 2-axis acceleration sensor, the passenger conveyor stopping distance measuring device 1 needs to be installed so as to be parallel to and vertically horizontal to the traveling direction and the direction of gravity. In contrast, when a 3-axis acceleration sensor is used, the movement direction can be estimated by vector operation regardless of the direction in which the passenger conveyor stopping distance measuring device 1 is installed, and therefore, the installation work can be simplified.
The calculation unit 12 shifts to the measurement mode by inputting the measurement start signal from the input unit 11, and calculates the speed and distance (braking distance and stopping distance) based on the measurement of the acceleration, the vector calculation, and the integration process by the acceleration detection unit 13. The storage unit 14 stores a "stopping distance measuring program" for performing calculation by the calculation unit 12 to measure the stopping distance of the passenger conveyor. The storage unit 14 stores idle running time and rated speed information for each model of the passenger conveyor. The display unit 15 is a display device including a liquid crystal panel, a touch panel for detecting a touch operation, a Light Emitting Diode (LED), and the like. The display unit 15 displays the calculation results of the speed, distance, time, and the like calculated by the calculation unit 12 and the determination results based on the measurement results.
(work for judging whether or not the passenger conveyor is good)
Fig. 2 is a flowchart showing the flow of the work of determining the quality of the passenger conveyor based on the stopping distance by using the passenger conveyor stopping distance measuring device 1 according to embodiment 1. In the flowchart of fig. 2, first, the maintenance person stops the passenger conveyor (step T01). Next, after confirming the stop of the passenger conveyor, the maintenance worker sets the passenger conveyor stopping distance measuring device 1 on the step near the movement starting point with respect to the traveling direction of the passenger conveyor (step T02).
Next, the maintenance person inputs necessary information such as the device unique number of the passenger conveyor to be measured via the input unit 11 of the passenger conveyor stopping distance measuring device 1. In addition, as an example, the storage unit 14 associates a rated speed, an idle running time, and the like for each model of the passenger conveyor and stores the associated information as model information. The maintenance worker selects a desired model via the input unit 11 of the passenger conveyor stopping distance measuring device 1 (step T03). Thus, the rated speed, the idle running time, and the like of the passenger conveyor, at which the stopping distance is measured thereafter, are determined. The rating information, the idling time, and the like may be input by the maintenance worker through the input unit 11.
next, the maintenance worker instructs the start of measurement via the input unit 11 (step T04). As a result, the passenger conveyor stopping distance measuring device 1 shifts to the measurement mode, and becomes in the acceleration measurement standby state. Next, the maintenance person starts the passenger conveyor (step T05), and after confirming that the speed of the passenger conveyor has reached the rated speed (step T06), presses the emergency stop button (step T07). Thereby, the passenger conveyor is stopped urgently. In step T07, instead of using the emergency stop button, another stopping method such as cutting off the power supply to the passenger conveyor may be used.
Although details will be described later, the calculation unit 12 of the passenger conveyor stopping distance measuring device 1 calculates the idling distance from the rated speed (V) and the idling time (T) (S1). The calculation unit 12 calculates the time from the end of the idling time (T) to the stop of the passenger conveyor as the braking distance (S2). Then, the calculation unit 12 calculates the stopping distance (S) of the passenger conveyor by adding the idle running distance (S1) and the braking distance (S2). The stop distance (S) calculated in this manner is displayed on the display unit 15. After confirming the stop of the passenger conveyor, the maintenance worker determines whether the passenger conveyor is good based on the stop distance (S) displayed on the display unit 15 of the passenger conveyor stop distance measuring device 1, and the like (step T08).
(operation of stopping distance)
Next, the operation of calculating the stopping distance of the passenger conveyor in the passenger conveyor stopping distance measuring device 1 according to embodiment 1 will be described with reference to the flowchart of fig. 3. As described above, the passenger conveyor stopping distance measuring device 1 is provided on the steps of the passenger conveyor, and the measurement mode is switched to, and when the passenger conveyor is started, the measurement of the acceleration is started by the acceleration detecting unit 13 (step S11).
fig. 4 (a) is a diagram showing a detection output waveform of the acceleration detected by the acceleration detecting unit 13. When the passenger conveyor is started (acceleration is started), as shown in fig. 4 (a), after the acceleration detection unit 13 detects a positive level of acceleration and when the acceleration is completed, the passenger conveyor shifts to the normal speed travel (normal travel), and the acceleration becomes "0 level". As shown in fig. 4 (b), the traveling speed when the passenger conveyor shifts to the normal traveling becomes the rated speed (V). The rated speed (V) is calculated by the following expression (1).
[ equation 1 ]
Next, when the emergency stop button is pressed, for example, as shown in (a) of fig. 4, after the elapse of the idle time (T), the acceleration of the negative level is detected from the time T1. The acceleration of the negative level returns to the "0 level" because the passenger conveyor is in the stopped state (time t 2). When the acceleration of a negative level equal to or less than a predetermined value is detected (YES in step S12), the arithmetic unit 12 determines that deceleration is to be started (step S13).
Next, the computing unit 12 calculates the speed (V) and the braking distance of the passenger conveyor by integrating the acceleration between time t1 and time t2 in fig. 4 (a) (S2). Further, the computing unit 12 calculates a braking distance corresponding to a distance from the end time T1 of the idling time (T) to the time T2 at which the stop of the passenger conveyor is detected, as shown in fig. 4 (c), by performing the integration processing of the acceleration shown in the following expression (2) (S2).
[ equation 2 ]
When the acceleration is near the "0 level" (step S15: yes), the arithmetic unit 12 determines that the passenger conveyor is stopped (step S16).
next, as shown in fig. 4 (c), the arithmetic unit 12 sets the time from when the emergency stop button is pressed to when the passenger conveyor starts decelerating as the idle running time (T), and calculates the idle running distance, which is the moving distance of the passenger conveyor from when the emergency stop button is pressed to when T1 when the passenger conveyor starts decelerating, based on the following expression (S1) (step S17).
Free distance (S1) ═ rated speed (V) × free time (T)
Next, the computing unit 12 calculates the stopping distance (S) of the passenger conveyor based on the following expression (step S18).
Stopping distance (S) ═ idle distance (S1) + braking distance (S2)
Finally, the calculation unit 12 displays the calculated stopping distance (S) and the like on the display unit 15, and ends the operation of calculating the stopping distance shown in the flowchart of fig. 3.
(Effect of embodiment 1)
The passenger conveyor stopping distance measuring device 1 according to embodiment 1 calculates the stopping distance of the passenger conveyor based on the acceleration of the passenger conveyor that accompanies the movement to the stop of the passenger conveyor, and therefore can measure the stopping distance of the passenger conveyor without an artificial measurement error regardless of the model and age of the passenger conveyor. Further, since the measurement can be performed only by placing the passenger conveyor stopping distance measuring device 1 on the steps of the passenger conveyor, the stopping distance of the passenger conveyor can be measured with good workability.
(modification 1)
In the above description of embodiment 1, it has been described that information indicating the rated speed and the idle running time of each model is stored in the storage unit 14. However, either the rated speed or the idle running time may be stored in the storage unit 14. Further, either or both of the rated speed and the idle running time may be input via the input unit 11.
The rated speed is a fixed value determined in advance by specifications by inputting the acceleration signal from the acceleration detection unit 12 through the input unit 11, and is used only for detecting the deceleration start and stop states of the passenger conveyor. Therefore, complicated processing such as strict measurement accuracy of acceleration for calculating the velocity and distance, vector calculation of acceleration required in the case of multiple axes, and integration is not required. This can suppress the throughput of the passenger conveyor stopping distance measuring device 1, the measurement accuracy of the acceleration detecting unit 13, the sampling period, and the like.
(modification 2)
The calculation unit 12 shown in fig. 1 may use a speed of the passenger conveyor corrected by averaging a speed of the passenger conveyor calculated based on acceleration data from a stop state of the passenger conveyor until the passenger conveyor travels at a normal speed and a speed calculated at the time of stopping. This enables two speed measurements, and enables a more accurate measurement.
(modification 3)
The calculation unit 12 shown in fig. 1 may be used by averaging the stopping distances measured a plurality of times by repeating the operation and stopping a predetermined number of times. This makes it possible to perform velocity calculation and distance calculation a plurality of times, and to perform measurement with higher accuracy.
(modification 4)
Further, the specific data of the passenger conveyor is input through the input unit 11, and the measured stopping distance, date, time, specific data, and the like are stored in the storage unit 14. Then, the calculation unit 12 may display a caution display for prompting the inspection or adjustment of the brake device on the display unit 15 by comparing the data with the stop distance data of the past or the stop distance data of another passenger conveyor of the same model. This makes it possible to determine deterioration of the brake device of the passenger conveyor.
(embodiment 2)
Next, the passenger conveyor stopping distance measuring device 1 according to embodiment 2 will be described. In the description of embodiment 2, the same reference numerals are given to the same parts as those in embodiment 1, and detailed description thereof will be omitted.
Fig. 5 is a block diagram of the passenger conveyor stopping distance measuring device 1 according to embodiment 2. The passenger conveyor stopping distance measuring device 1 is different from the above-described embodiment 1 in that it includes the communication unit 16, and receives an emergency stop signal wirelessly transmitted from the wireless input unit 2 via the communication unit 16. As the communication unit 16, for example, a short-range wireless communication device such as Bluetooth (registered trademark) can be used. As the wireless input unit 2, for example, an input device capable of performing a switch operation such as a mouse device or a keyboard can be used.
The passenger conveyor stopping distance measuring device 1 according to embodiment 2 receives an emergency stop signal wirelessly transmitted from the wireless input unit 2 by the communication unit 16 when an emergency stop button provided on the wireless input unit 2 side is pressed. The calculation unit 12 calculates the stopping distance of the passenger conveyor as described above using the emergency stop signal received by the communication unit 16 as a trigger.
The passenger conveyor stopping distance measuring device 1 according to embodiment 2 as described above can obtain the following effects in addition to the effects described in embodiment 1. That is, the passenger conveyor stopping distance measuring device 1 according to embodiment 2 is capable of starting the measurement of the stopping distance of the passenger conveyor at the timing when the emergency stop button is actually pressed, not at the idle time predetermined for each model. Therefore, the stopping distance of the passenger conveyor can be measured even when the idle running time of each model is uncertain, and deterioration of a main device (an electromagnetic contactor or a solenoid) that operates the brake device can be determined from the idle running time.
(embodiment 3)
Next, the passenger conveyor stopping distance measuring device 1 according to embodiment 3 will be described. In the description of embodiment 3, the same reference numerals are given to parts showing the same operations as those of embodiment 1, and detailed description thereof will be omitted.
Fig. 6 is a block diagram of the passenger conveyor stopping distance measuring device 1 according to embodiment 3. The difference from the above-described embodiment 1 is that the passenger conveyor stopping distance measuring device 1 includes the communication unit 16, and performs data transmission and reception with the data server 3. As the communication unit 16, for example, a communication unit that wirelessly communicates data using Wi-Fi or a public wireless communication network can be used. As the data server 3, a server for storing data provided at a remote location and having a communication function can be used.
In the passenger conveyor stopping distance measuring device 1 according to embodiment 3, the communication unit 16 transmits the measured stopping distance data to the data server 3 together with the passenger conveyor unique data. The data server 3 receives and stores stop distance data and the like from the passenger conveyor stop distance measuring devices 1 installed in various places such as the whole country, for example. The data server 3 calculates, for example, an average value, an intermediate value, a deviation, and the like of the stopping distances based on the stopping distance data of the same model received from each passenger conveyor stopping distance measuring device 1, and transmits the calculated stopping distance data to the passenger conveyor stopping distance measuring device 1.
The communication unit 16 of the passenger conveyor stopping distance measuring device 1 receives the average value, the median value, the deviation, and the like of the stopping distances of the same model transmitted from the data server 3. The calculation unit 12 compares the average value of the stopping distances of the same model received from the data server 3 and the like with the measured stopping distance. Then, the calculation unit 15 displays a caution display for prompting inspection or adjustment of the brake device on the display unit 15 based on the comparison result. This can provide the same effects as those of embodiment 1 described above, and can also determine the deterioration state of the brake device of the passenger conveyor with higher accuracy.
The embodiments of the present invention have been described, but these embodiments are presented as examples and are not intended to limit the scope of the invention. These embodiments can be implemented in other various ways, and various omissions, substitutions, and changes can be made without departing from the spirit of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the scope equivalent thereto.
Claims (5)
1. A passenger conveyor stopping distance measuring device includes:
An acceleration detection unit that detects an acceleration signal of the passenger conveyor; and
And a calculation unit that detects a deceleration start state and a stop state of the passenger conveyor based on the acceleration signal detected by the acceleration detection unit, calculates a stop distance of the passenger conveyor by calculating a time from the deceleration start to the stop state and the acceleration signal, and outputs the calculated stop distance.
2. The passenger conveyor stopping distance determining device according to claim 1,
Comprises an acquisition unit for acquiring at least the empty time of the passenger conveyor,
The calculation unit calculates, as the stop distance of the passenger conveyor, a value obtained by adding an idle running distance corresponding to an idle running time of the passenger conveyor and a braking distance corresponding to a time from a start of deceleration of the passenger conveyor to a stop state.
3. The passenger conveyor stopping distance determining device according to claim 1 or 2,
The calculation unit calculates the stopping distance using a speed of the passenger conveyor corrected by averaging a speed from a stopped state of the passenger conveyor to a traveling at a normal speed and a speed calculated when the passenger conveyor is stopped, or by averaging the stopping distance measured a plurality of times by repeated measurements of operations and stops a predetermined number of times.
4. The passenger conveyor stopping distance determining device according to claim 1 or 2,
Has a communication unit for receiving a stop signal input when a stop button is operated,
The calculation unit calculates the stopping distance at a timing when the communication unit receives the stopping signal.
5. The passenger conveyor stopping distance determining device according to claim 1 or 2,
The device comprises a storage unit for storing the stopping distance input by the input unit or the stopping distance of the passenger conveyor of the same model received by the communication unit,
The calculation unit outputs a warning prompting the inspection or adjustment of the brake device of the passenger conveyor based on a comparison result obtained by comparing the past stopping distances stored in the storage unit with each other or a comparison result obtained by comparing the stopping distances of the passenger conveyor of the same model stored in the storage unit with each other.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018-105614 | 2018-05-31 | ||
| JP2018105614A JP2019210076A (en) | 2018-05-31 | 2018-05-31 | Stopping-distance measuring equipment of passenger conveyor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110553613A true CN110553613A (en) | 2019-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910445325.3A Pending CN110553613A (en) | 2018-05-31 | 2019-05-27 | passenger conveyor stopping distance measuring device |
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| Country | Link |
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| JP (1) | JP2019210076A (en) |
| CN (1) | CN110553613A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7108647B2 (en) * | 2020-02-25 | 2022-07-28 | 株式会社日立ビルシステム | Passenger conveyor diagnostic device fixing jig |
| CN112320550B (en) * | 2020-11-03 | 2022-10-11 | 浙江省特种设备科学研究院 | Method for measuring braking distance of escalator |
| KR102455746B1 (en) * | 2021-02-02 | 2022-10-17 | 청운대학교산학협력단 | Methods of calculating for elevator travel distance through acceleration sensor |
| WO2023227333A1 (en) * | 2022-05-24 | 2023-11-30 | Inventio Ag | Method for measuring the braking distance of an escalator or a moving walkway |
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Application publication date: 20191210 |