JP2012188236A - Passenger conveyor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a passenger conveyor including an apparatus which has simple structure and, for the purpose of safe operation of the passenger conveyor, surely monitors rushing up or down of a passenger on the passenger conveyor and performs operation such as promoting the passenger to pay attention when determining that the conveyor is in a dangerous operation.SOLUTION: The passenger conveyor includes two sensors 1a and 1b in a skirt guard 3 near a middle slope part. The sensors 1a and 1b are arranged side by side toward a tread 4 side and detect a passenger 5 on the tread 4. The motion of the passenger 5 is determined by comparing a detection time difference between the two sensors 1a and 1b with the rated speed of an escalator. When faster than the rated speed, rushing up or down is determined to announce a warning. When slower than the rated speed, reverse running of the passenger 5 or the passenger conveyor is determined, and the operation of announcing a warning or stopping the escalator is carried out.

Description

  Embodiments of the present invention relate to a passenger conveyor.

  As means for monitoring the movement of the passenger on the escalator, there is one that determines the passenger's situation by processing an image.

  As far as preventing reverse entry, there was a method of monitoring the direction by attaching two sensors near the entrance and exit.

JP 2010-64821 A JP 11-292449 A

  However, the determination method by the conventional image processing requires a large-scale device such that a place for installing an image recording device and a transmission system is separately required. Furthermore, the device itself is expensive. Also, adjustment takes time.

  In addition, the conventional monitoring method using the sensor can detect only the situation at the entrance and exit, and can only perform the function of preventing reverse entry. Therefore, it is impossible to detect a danger when a passenger runs up or down in the inclined portion or when the passenger runs backward with respect to the traveling direction of the passenger conveyor.

  The embodiment of the present invention monitors the situation of passengers on the escalator, in particular, running up and running down with a simple structure to ensure safe operation of the escalator, and alerts if it is judged dangerous. There is provided a passenger conveyor equipped with a device for performing the operations.

  The passenger conveyor according to the embodiment of the present invention has two sensors on the skirt guard near the intermediate inclined portion. Each sensor is installed side by side toward the step, and detects passengers on the step. The passenger's movement is judged by comparing the detection time difference between the two sensors and the rated speed of the escalator. If it is faster than the rated speed, it will be judged to run up and run down, and a caution announcement will be given. If it is slower than the rated speed, it can be determined that the passenger or passenger conveyor is running backward, and an operation such as a warning announcement or an escalator is stopped.

  A specific configuration of the passenger conveyor according to the embodiment of the present invention is a passenger conveyor that can perform speed switching of operation, stop, or deceleration by a drive control device, and a detection unit that sets two sensors as one set, The emergency control device that operates according to the detection signal transmitted from the detection means, and a sound generation device, the detection means includes two sensors in the traveling direction of the passenger conveyor between the entrance and the exit of the passenger conveyor. The two sensors have a function of transmitting the detection signal to the emergency control device every time an object is detected, and the emergency control device detects the object by the detection signal transmitted from the two sensors. Speed calculation means for calculating the speed of the object from the calculated time difference and the distance between the two sensors, and the calculated speed of the object and the driving control device of the passenger conveyor. A comparison means for calculating a difference from the rated speed, and when the numerical value obtained by the comparison means is outside the allowable numerical value range, the control device generates a sound such as an announcement or a siren alarm to the sound generation device. A passenger detection device having a function of transmitting a command signal and / or a speed limit command signal for decelerating or stopping the passenger conveyor to the drive control device of the passenger conveyor is provided.

  With the above configuration, the passenger detection device is installed as a pair of two sensors arranged on the inclined portion of the passenger conveyor, and the speed of the object calculated from the interval at which the two sensors detect the object and the rated speed of the passenger conveyor are determined. By comparing, the movement of the passenger is detected, and the function of performing the emergency operation such as the announcement or stopping the passenger conveyor is achieved.

It is a partial schematic side view of the escalator showing the 1st Embodiment of this invention. It is a partial schematic sectional drawing of the escalator showing the 1st Embodiment of this invention. It is a partial schematic plan view of the escalator showing the 1st Embodiment of this invention. It is a schematic side view of the escalator showing the 2nd Embodiment of this invention. It is a partial schematic plan view of the escalator showing the 3rd Embodiment of this invention. It is a partial schematic plan view of the escalator showing the 4th Embodiment of this invention.

  Hereinafter, examples of escalators as passenger conveyors according to embodiments of the present invention will be described with reference to the drawings. This embodiment can also be applied to passenger conveyors such as moving walkways.

  1 to 3 show an escalator A according to the first embodiment, and the escalator A can be operated, stopped, or decelerated by a drive control device (not shown). . In addition, the escalator A is provided with a passenger detection device including a detection means, an emergency control device that operates according to a detection signal transmitted from the detection means, and a sound generation device. The passenger detection device has a configuration in which the detection means, the emergency control device, and the sound generation device are separately arranged, a configuration in which the detection means, the emergency control device, and the sound generation device are appropriately combined, or the detection means and the emergency control device. Any of the configurations in which the sound generator and the sound generator are integrated. FIG. 1 shows the relationship between the step 4, the skirt guard 3, the two sensors 1 a and 1 b (sometimes collectively referred to as “sensor 1”), and the passenger 5 in the escalator A.

  In the above detection means, the two sensors 1a and 1b are composed of a set of two. As shown in FIG. 1, the two sensors 1a and 1b are located between the entrance of the escalator A and the exit. Is installed on the skirt guard 3 above the region where the step 4 travels in the traveling direction of the escalator A between the transition portion from the horizontal portion on the entrance side to the inclined portion and the inclined portion. Further, as shown in FIG. 2, the detection means is specifically composed of sensors 1 a and 1 b and a support 2. The sensors 1 a and 1 b are attached to the support 2, and the sensors 1 a and 1 b are attached to the skirt guard 3. Passengers 5 and objects on the steps 4 that block the sensor beam 6 emitted from the sensors 1a and 1b through the opened holes are detected. Accordingly, the two sensors 1a and 1b detect when a passenger 5 or an object passes in front of the two sensors 1a and 1b, and the passenger 5 on the step 4 in FIG. 1, and transmit a detection signal to the emergency control device every time it is detected. Have Passengers on the steps always pass through the sensors 1a and 1b, respectively, and usually the direction of the escalator driving direction and the detection order of the sensors 1a and 1b are the same. For example, when an ascending operation command is issued, detection is performed in order from 1a to 1b. The detection time difference and detection order of the sensors 1a and 1b are sent to the emergency controller of the escalator.

  The emergency control device described above includes speed calculation means for calculating the moving speed of the passenger 5 from the time difference when the passenger 5 is detected by the detection signals transmitted from the two sensors 1a and 1b and the distance between the two sensors 1a and 1b, Comparing means for calculating a difference between the calculated moving speed of the passenger 5 and the rated speed transmitted from the drive control device of the escalator A is provided.

  When the numerical value obtained by the comparison means is out of the allowable numerical value range, the emergency control device sets the escalator A to the sound generation command signal for issuing an alarm such as an announcement or siren to the sound generation device and the drive control device for the escalator A. It has a function of transmitting both or any one of a speed limit command signal for decelerating or stopping.

  For example, when the speed of the passenger 5 detected by the sensors 1a and 1b is higher than the rated speed of the escalator A, that is, when the difference in detection time is shorter than the rated speed of the escalator, the emergency control device runs up or down. It is determined that Conversely, when the speed of the passenger 5 detected by the sensors 1a and 1b is slower than the rated speed of the escalator A or in the direction opposite to the traveling direction, that is, the detection time difference is longer than the rated speed of the escalator or the direction of the detection order is If it is opposite to the driving direction, the emergency control device determines that reverse feeding has occurred. As described above, when it is determined that a run-up or run-down or reverse running abnormality is detected, the emergency control device transmits a sound generation command signal to the sound generation device, and issues a warning such as a caution announcement from the sound generation device. If the abnormality continues, the emergency control device transmits a speed limit command signal for decelerating the escalator A to the drive control device of the escalator A to switch the escalator A to the low speed operation. The emergency control device transmits a speed limit command signal for stopping the escalator A to the drive control device of the escalator A to stop the escalator.

  In addition, when the passenger 5 of the escalator A stops on the step 4, it calculates from the time difference which detected the passenger 5 with the detection signal transmitted from the two sensors 1a and 1b, and the distance between the two sensors 1a and 1b. The moving speed of the passenger 5 is the same as the speed of the step 4 based on the rated speed transmitted from the drive control device of the escalator A, and is transmitted from the calculated moving speed of the passenger 5 and the drive control device of the escalator A. The difference from the rated speed is zero. When the passenger 5 of the escalator A walks up and down the step 4, the difference between the calculated moving speed of the passenger 5 and the rated speed transmitted from the drive control device of the escalator A becomes a positive numerical value. Further, when the passenger 5 of the escalator A runs up and down the step 4, the difference between the calculated moving speed of the passenger 5 and the rated speed transmitted from the drive control device of the escalator A increases by a positive value. . Therefore, by entering in advance an allowable numerical value range in the difference between the moving speed of the passenger 5 and the rated speed transmitted from the drive control device of the escalator A to the emergency control device, The control device can be set to transmit a sound generation command signal for issuing an alarm to the sound generation device and / or a speed limit command signal for decelerating or stopping the escalator A to the drive control device of the escalator A. .

  In the second embodiment, a plurality of sets of sensors 1 are installed between the entrance and exit of the escalator A. FIG. 4 shows that sensors 1 are installed at three locations between the transition changing portion from the horizontal portion on the upper floor side of the escalator A to the inclined portion, the transition changing portion from the horizontal portion to the inclined portion on the lower floor side, and the middle of the inclined portion. Indicates the state.

  Thus, by installing a plurality of sets of sensors 1 at regular intervals, it is possible to monitor the movement of passengers on the steps without omission. Moreover, the emergency control apparatus in a present Example is provided with the number-counting means which calculates the number of passengers of the escalator A from the detection signal which the sensor 1 detected in the upper floor part and the lower floor part, and the function which judges the load condition by a passenger have. Therefore, it is possible to monitor the loading situation by counting the number of passengers simultaneously with the detection of the sensors 1 on the upper and lower floors and calculating the difference in the number of passengers.

  FIG. 5 shows a third embodiment. The sensor 1 is installed to face the left and right skirt guards 3 respectively. The detection distances of the sensors 1 are set up to the center of the step 4 respectively. In particular, in the case of an escalator that can carry two people in one stage, it can be installed on both the right side and the left side to monitor passengers on both sides.

  FIG. 6 shows a fourth embodiment. The sensor 1 is installed without facing the left and right skirt guards 3. Since the sensor 1 is shifted and installed, malfunction due to interference between the sensor beams 6 can be prevented.

  In the escalator passenger detection device according to the first to fourth embodiments of the present invention described above, two sensors are installed as one set on the skirt guard of the inclined portion, and the detection time difference and the detection order of the two sensors. By monitoring the above, it is possible to determine whether the passenger on the escalator has run up or down. As a result, a conventional large-scale image processing apparatus or the like is unnecessary, and safety can be improved at low cost.

  In addition, by arranging multiple sets of sensors, it becomes possible to monitor more passengers, and furthermore, a set of sensors is installed near the entrance and exit, and the number of passengers getting on and off is counted. By doing so, it is possible to check the loading state of the escalator, and when it is determined that the state is an overloading state, the escalator can be stopped to ensure safety.

  In addition, although the present Example demonstrated the escalator, it is applicable also to the step in a moving sidewalk. Further, the embodiment is an exemplification, and the scope of the invention is not limited to the embodiment.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are also included in the invention described in the claims and the equivalents thereof.

1a ... sensor 1b ... sensor 1 ... sensor 2 ... bracket 3 ... skirt guard 4 ... step 5 ... passenger 6 ... sensor beam

Claims (10)

It is a passenger conveyor that can perform speed switching of operation, stop or deceleration by a drive control device,
The detection means includes two sensors as a set, an emergency control device that operates according to a detection signal transmitted from the detection means, and a sound generation device.
The detection means is installed with two sensors arranged in the direction of travel of the passenger conveyor between the entrance and exit of the passenger conveyor, and each time the two sensors detect an object, the detection signal is transmitted to the emergency control device. Has the function to
The emergency control device includes speed calculation means for calculating the speed of an object from a time difference in which an object is detected by a detection signal transmitted from two sensors and a distance between the two sensors, and the calculated speed of the object and the passenger conveyor. Comparing means for calculating a difference from the rated speed transmitted from the drive control device,
When the numerical value obtained by the comparison means is outside the allowable numerical value range, the emergency control device decelerates the passenger conveyor to the voice generation command signal that issues an announcement or siren alarm to the voice generation device and the drive control device of the passenger conveyor. Or a passenger detection device having a function of transmitting both or any one of a speed limit command signal to be stopped.   The passenger conveyor according to claim 1, wherein the sensor is installed above an area where the step travels.   The passenger conveyor according to claim 1 or 2, wherein the sensor is installed in the vicinity of the boundary between the transition changing portion from the horizontal portion to the inclined portion and the inclined portion at the entrance or exit.   When the numerical value calculated by the comparison means is positive, the emergency control device determines that the speed of the object detected by the sensor is faster than the rated speed of the passenger conveyor, and determines that the passenger is running up or down. The passenger conveyor according to any one of claims 1 to 3.   If the numerical value calculated by the comparison means is negative, the emergency control device determines that the speed of the object detected by the sensor is slower than the rated speed of the passenger conveyor or is opposite to the direction of travel. The passenger conveyor according to any one of claims 1 to 4, wherein the passenger conveyor is determined to be reverse running due to running or overloading.   The passenger conveyor according to any one of claims 1 to 5, wherein a plurality of sensors are set between the entrance and the exit.   One set of sensors between the transition part and the inclined part from the horizontal part on the upper floor side to the inclined part, one set between the transition part and the inclined part from the horizontal part on the lower floor side to the inclined part, and the inclined part The passenger conveyor according to claim 6, wherein one set is installed in the middle of each section.   The passenger conveyor according to any one of claims 1 to 7, wherein the sensors are attached to each other by left and right skirt guards.   The passenger conveyor according to any one of claims 1 to 7, wherein the sensor is attached to a position where the left and right skirt guards do not face each other.   The emergency control device is provided with a person counting means for calculating the number of passengers of the passenger conveyor based on detection signals detected by the sensor at the upper floor and the lower floor, and has a function of judging a load situation by the passenger. The passenger conveyor of any one of Claims 6-9.

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