Passenger conveyor and steps for the passenger conveyor
The passenger conveyor system addresses inefficiencies in data collection by using oriented sensors to acquire data during both forward and return paths, enabling effective anomaly detection in escalators.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- MITSUBISHI ELECTRIC BUILDING SOLUTIONS CORP
- Filing Date
- 2025-07-17
- Publication Date
- 2026-05-15
AI Technical Summary
Existing passenger conveyors, such as escalators, are inefficient in acquiring data necessary for determining abnormalities as data collection is limited to the return path.
The passenger conveyor system includes steps with a tread plate, support member, distance sensors, and orientation sensors that emit light towards skirt guards and oil pans based on the step's orientation, allowing efficient data acquisition during both forward and return paths.
Enables efficient data collection for anomaly detection, including abnormalities related to skirt guards and oil pans, enhancing maintenance efficiency.
Smart Images
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Abstract
Description
Technical Field
[0001] The present disclosure relates to a passenger conveyor and steps used in a passenger conveyor.
Background Art
[0002] Patent Document 1 describes a passenger conveyor. The passenger conveyor described in Patent Document 1 includes steps to which a camera is attached. The camera photographs the dust deposited on the oil pan. The maintenance staff determines the amount of dust deposited on the oil pan based on the image photographed by the camera.
Prior Art Documents
Patent Documents
[0003]
Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0004] The steps of the passenger conveyor move on the return path from the exit to the entrance after moving on the forward path from the entrance to the exit. In the passenger conveyor described in Patent Document 1, data necessary for determining an abnormality is acquired only when the steps move on the return path. Therefore, there is a problem that data cannot be acquired efficiently.
[0005] The present disclosure has been made to solve the above problems. An object of the present disclosure is to provide a passenger conveyor capable of efficiently acquiring data necessary for determining an abnormality. Another object of the present disclosure is to provide steps for a passenger conveyor capable of efficiently acquiring data necessary for determining an abnormality.
Means for Solving the Problems
[0006] The passenger conveyor according to this disclosure comprises a step that moves forward in a first orientation with its tread facing upward and moves back in a second orientation with its tread facing downward, a drive device for driving the step, a skirt guard, and an oil pan positioned below the step as it moves back. The step moves forward along the skirt guard. The step comprises a structure including a tread plate on which a tread surface is formed and a support member for supporting the tread plate, a distance sensor having a light source and provided on the structure, an orientation sensor for detecting the orientation of the tread plate, a switching means that, based on the orientation detected by the orientation sensor, emits light from the light source towards the skirt guard when the step is moving in the first orientation and emits light from the light source towards the oil pan when the step is moving in the second orientation, and an acquisition means for acquiring data detected by the distance sensor.
[0007] The passenger conveyor step according to this disclosure comprises a tread plate with a tread surface formed thereon, a support member that supports the tread plate, a distance sensor having a light source provided on the structure including the tread plate and the support member, a posture sensor that detects the posture of the tread plate, a switching means that, based on the posture detected by the posture sensor, causes light from the light source to be emitted to the side when the tread plate is moving in a first posture with the tread surface facing upward, and causes light from the light source to be emitted downward when the tread plate is moving in a second posture with the tread surface facing downward, and an acquisition means that acquires data detected by the distance sensor. [Effects of the Invention]
[0008] According to this disclosure, data necessary for determining abnormalities in a passenger conveyor can be efficiently acquired. [Brief explanation of the drawing]
[0009] [Figure 1] This figure shows an example of a passenger conveyor in Embodiment 1. [Figure 2] This is a view of the entrance from above. [Figure 3] This is a plan view showing the steps in Embodiment 1. [Figure 4]This diagram illustrates the function of each step. [Figure 5] This diagram schematically shows the steps involved in traveling the outward journey and the steps involved in traveling the return journey. [Figure 6] This flowchart shows an example of how the steps work. [Figure 7] This is a diagram illustrating the function of the anomaly detection unit. [Figure 8] This diagram illustrates other functions of the anomaly detection unit. [Figure 9] This figure shows another example of the steps. [Figure 10] This flowchart shows other examples of the steps in operation. [Figure 11] This figure shows an example of the hardware resources of a control device. [Figure 12] This figure shows another example of the hardware resources of a control device. [Modes for carrying out the invention]
[0010] A detailed explanation follows, with reference to the drawings. Repetitive explanations will be simplified or omitted as appropriate. In each drawing, the same reference numerals indicate the same or corresponding parts.
[0011] Embodiment 1. Figure 1 shows an example of a passenger conveyor in Embodiment 1. Figure 1 shows an escalator as an example of a passenger conveyor. A moving walkway is also included in the passenger conveyor.
[0012] The escalator consists of a truss 1 and steps 2. Truss 1 spans between the upper and lower floors. Passengers move from the entrance 3 to the exit 4 by riding on steps 2. That is, Figure 1 shows an upward escalator. Figure 2 is a view of the entrance 3 from above.
[0013] A machine room 5 is provided below the boarding door 3. The machine room 5 is a space formed inside the truss 1. The machine room 5 is blocked by a floor plate 6. The floor plate 6 forms the floor of the boarding door 3. Passengers transfer from the floor plate 6 to the steps 2.
[0014] A machine room 7 is provided below the alighting door 4. The machine room 7 is a space formed inside the truss 1. The machine room 7 is blocked by a floor plate 8. The floor plate 8 forms the floor of the alighting door 4. Passengers move from the steps 2 to the floor plate 8.
[0015] An electric motor 9 and a control device 10 are provided in the machine room 7. The electric motor 9 is an example of a driving device for driving the steps 2. The control device 10 controls the electric motor 9. For example, the electric motor 9 rotates a shaft 12 provided in the machine room 7 via a speed reducer 11. A sprocket 13 is provided on the shaft 12. A step chain 14 is wound around the sprocket 13. A number of step shafts 15 are provided on the step chain 14. Each step shaft 15 is fixed with a step 2. Thereby, a number of steps 2 are connected to the step chain 14.
[0016] The steps 2 move by being pulled by the step chain 14. Since the step chain 14 is endless, the steps 2 move in a circular motion. In the example shown in this embodiment, the steps 2 appear from under the floor plate 6 at the boarding door 3 and move in the forward path toward the alighting door 4. Passengers board the steps 2 moving in the forward path. For this reason, the steps 2 move in the forward path while maintaining a specific posture. Hereinafter, the posture of the steps 2 moving in the forward path is also referred to as the first posture. Skirt guards 16 are provided on both sides of the steps 2 moving in the forward path. The steps 2 move in the forward path along the skirt guards 16.
[0017] Step 2 enters under the floor plate 8 at exit 4 and reverses direction in machine room 7. After reversing direction in machine room 7, Step 2 moves along the return path within truss 1 toward machine room 5. Step 2 moves along the return path while maintaining its reversed position. Hereafter, the position of Step 2 moving along the return path will also be referred to as the second position. Since lubricating oil is used in the step chain 14, etc., an oil pan 20 is provided in truss 1. The oil pan 20 is located below Step 2 as it moves along the return path. Step 2 returns to the first position by reversing direction again in machine room 5 and reappears from under the floor plate 6.
[0018] As described above, numerous step 2s are linked to the step chain 14. In the example shown in this embodiment, some of the step 2s linked to the step chain 14 have the function of collecting data necessary for determining abnormalities. It is not necessary for an escalator to have only one step 2 with such a function. Hereafter, the step with this function will be denoted as 2A to distinguish it from other step 2s, i.e., step 2s that do not have this function. The functions of step 2A other than the data collection function are the same as the functions of other step 2s.
[0019] Figure 3 is a plan view showing step 2A in Embodiment 1. Figure 4 is a diagram illustrating the function of step 2A.
[0020] Step 2A includes a footboard 21, a riser 22, a support member 23, a roller 24, a distance sensor 25, a distance sensor 26, a posture sensor 27, a control device 28, and a battery 29. The footboard 21, riser 22, support member 23, and roller 24 are also provided in other Step 2 devices.
[0021] A tread surface 21a is formed on the step board 21. The tread surface 21a is the surface on which the passenger stands. The step board 21 is supported from below by a support member 23. Figure 5 is a schematic diagram showing step 2A moving along the outward path and step 2A moving along the return path. In the first position, the tread surface 21a faces upward. In the second position, the tread surface 21a faces downward.
[0022] The riser 22 is a curved, plate-shaped member. The riser 22 is positioned to extend downward from the edge of the step plate 21 as the step 2A moves along the forward path. The riser 22 is supported by a support member 23. The support member 23 is fixed to the step shaft 15. The roller 24 is rotatably mounted on the support member 23.
[0023] The escalator is equipped with rails 17a and 17b to guide the forward movement of step 2A. Rails 17a and 17b are supported by truss 1. When step 2A moves forward, roller 24 rolls on rail 17a. Also, as shown in Figure 3, a number of rollers 18 are rotatably mounted on step chain 14. The rollers 18 may also be rotatably mounted on step shaft 15. When step 2A moves forward, roller 18 rolls on rail 17b. Rails 17a and 17b maintain the posture of step 2 as it moves forward, i.e., the first posture.
[0024] Similarly, the escalator is equipped with rails 19a and 19b to guide the return movement of step 2A. Rails 19a and 19b are supported by truss 1. As step 2A moves back, roller 24 rolls on rail 19a. Also, as step 2A moves back, roller 18 rolls on rail 19b. Rails 19a and 19b maintain the posture of step 2 as it moves back, i.e., the second posture.
[0025] Distance sensor 25, distance sensor 26, attitude sensor 27, control device 28, and battery 29 are provided in the structure of step 2. The structure of step 2 includes a footboard 21, riser 22, and support member 23. For example, distance sensor 25, distance sensor 26, attitude sensor 27, control device 28, and battery 29 are fixed to the footboard 21.
[0026] The distance sensor 25 is an example of a first sensor for detecting specific first data. The first data is data necessary to determine a specific first anomaly. For example, the first anomaly is an anomaly related to the skirt guard 16. The distance sensor 25 detects the distance to the skirt guard 16 as the first data. For example, the distance sensor 25 has a light source 25a. Light is emitted from the light source 25a toward the side of step 2A. The side of step 2A is the direction extending to the left and right as viewed from a passenger on step 2A facing the direction of step 2A's movement.
[0027] The skirt guards 16 are positioned on both sides of step 2A as it moves along the forward path. For this reason, it is preferable that step 2A be equipped with a pair of distance sensors 25. One distance sensor 25 emits light from a light source 25a so that light shines on one side of the skirt guard 16 when step 2A is moving along the forward path. The other distance sensor 25 emits light from a light source 25a so that light shines on the other side of the skirt guard 16 when step 2A is moving along the forward path.
[0028] The distance sensor 26 is an example of a second sensor for detecting specific second data. The second data is data necessary to determine a specific second anomaly. The second data is different from the first data. Also, the second anomaly is different from the first anomaly. For example, the second anomaly is an anomaly related to the deposits in the oil pan 20. The distance sensor 26 detects the distance to the oil pan 20 as the second data. For example, the distance sensor 26 has a light source 26a. Light is emitted from the light source 26a in the direction that the tread surface 21a faces.
[0029] The posture sensor 27 detects the posture of the footboard 21. In the example shown in this embodiment, the posture of the footboard 21 and the posture of step 2A are synonymous. For example, step 2A is equipped with a gyro sensor as the posture sensor 27. Step 2A may also be equipped with an accelerometer as the posture sensor 27.
[0030] The control device 28 comprises a sensor control unit 31, a determination unit 32, an acquisition unit 33, an anomaly detection unit 34, and a communication unit 35. The sensor control unit 31 controls the distance sensors 25 and 26. The communication unit 35 communicates with the control device 28.
[0031] The power required for each of the distance sensors 25, 26, attitude sensor 27, and control device 28 is supplied from the battery 29.
[0032] Figure 6 is a flowchart showing an example of the operation of Step 2A.
[0033] The control device 28 determines whether the power switch (not shown) is on or off (S101). For example, the power switch may be manually switched on or off by an elevator maintenance worker.
[0034] When the power switch is turned on (Yes in S101), the sensor control unit 31 turns off distance sensors 25 and 26 as an initial setting (S102). In S102, no light is emitted from light source 25a. No light is emitted from light source 26a.
[0035] If the result in S101 is Yes, the determination unit 32 determines whether step 2A is in the first posture (S103). The determination in S103 is made based on the posture of the footplate 21 detected by the posture sensor 27. In S103, the determination unit 32 may also determine whether step 2A is moving in the first posture.
[0036] If the result in S103 is No, the determination unit 32 determines whether step 2A is in the second posture (S104). The determination in S104 is made based on the posture of the footplate 21 detected by the posture sensor 27. In S104, the determination unit 32 may also determine whether step 2A is moving in the second posture.
[0037] When the elevator maintenance worker turns on the power switch and normal operation begins, step 2A moves along the outbound path, for example, towards exit 4. If step 2A is moving along the outbound path, S103 determines Yes.
[0038] If the response in S103 is "Yes", the sensor control unit 31 turns on the distance sensor 25 (S105). As a result, when step 2A is moving forward in the first orientation, light is emitted from the light source 25a towards the skirt guard 16. Also, in S105, the sensor control unit 31 turns off the distance sensor 26. Therefore, when step 2A is moving forward in the first orientation, no light is emitted from the light source 26a.
[0039] In S105, light is emitted from the light source 25a toward the side, and the distance to the skirt guard 16 is detected by the distance sensor 25. The acquisition unit 33 acquires the distance data detected by the distance sensor 25 when step 2A is moving along the forward path in the first posture, i.e., the first data (S106).
[0040] The anomaly detection unit 34 detects a first anomaly based on the first data acquired by the acquisition unit 33 in S106. For example, the anomaly detection unit 34 determines whether the gap G between the skirt guard 16 and step 2A is greater than a first threshold (S107). The gap G is obtained from the first data acquired by the acquisition unit 33. The first threshold is set in advance.
[0041] Figure 7 is a diagram illustrating the function of the anomaly detection unit 34. In the example shown in Figure 7, the gap G between the skirt guard 16 and step 2 (2A) is larger than the first threshold in section A. Therefore, when step 2A passes through section A, it is determined to be Yes in S107. The anomaly detection unit 34 detects the first anomaly by determining Yes in S107 (S108). In the example shown in Figure 7, the anomaly detection unit 34 detects that the gap G has widened in section A.
[0042] The communication unit 35 wirelessly transmits the first data acquired by the acquisition unit 33 in S106 to the control device 10 (S109). At this time, the data indicating the first anomaly detected by the anomaly detection unit 34 is also wirelessly transmitted to the control device 10 along with the first data. The timing at which the communication unit 35 transmits the first data can be any timing. For example, the first data may be transmitted to the control device 10 together with the second data, which will be described later. In this case, the first data is temporarily stored in the memory area of the control device 28 until the second data is acquired.
[0043] While Step 2A is moving along the outward path in the first position, the processes shown in S105 to S108 are repeated. Step 2A goes under the floor plate 8 at the exit 4 and reverses direction at the machine room 7. This results in a determination of No at S103. After reversing direction at the machine room 7, Step 2A moves along the return path towards the machine room 5. If Step 2A is moving along the return path, a determination of Yes is made at S104.
[0044] If the response in S104 is "Yes", the sensor control unit 31 turns on the distance sensor 26 (S110). As a result, when step 2A is moving on the return journey in the second attitude, light is emitted from the light source 26a towards the oil pan 20. Also in S110, the sensor control unit 31 turns off the distance sensor 25. Therefore, when step 2A is moving on the return journey in the second attitude, no light is emitted from the light source 25a.
[0045] In S110, light is emitted downward from the light source 26a, and the distance to the oil pan 20 is detected by the distance sensor 26. The acquisition unit 33 acquires the distance data detected by the distance sensor 26, i.e., the second data, when step 2A is moving on the return path in the second attitude (S111).
[0046] The anomaly detection unit 34 detects a second anomaly based on the second data acquired by the acquisition unit 33 in S111. For example, the anomaly detection unit 34 determines whether the distance L between the tread surface 21a and the oil pan 20 in step 2A is less than a second threshold (S112). The distance L is obtained from the second data acquired by the acquisition unit 33. The second threshold is set in advance.
[0047] If there is no deposit in the oil pan 20, the distance L will be the distance between the tread surface 21a and the surface of the oil pan 20. If light from the light source 26a hits deposits on the oil pan 20, the distance L will be the distance between the tread surface 21a and the deposits.
[0048] Figure 8 is a diagram illustrating another function of the anomaly detection unit 34. In the example shown in Figure 8, the light from the light source 26a hits the deposit on the oil pan 20, causing the distance L in section B to be smaller than the second threshold. Therefore, when step 2A passes through section B, it is determined to be Yes in S112. The anomaly detection unit 34 detects the second anomaly by determining Yes in S112 (S113). In the example shown in Figure 8, the anomaly detection unit 34 detects that deposits have accumulated in section B.
[0049] The communication unit 35 wirelessly transmits the second data acquired by the acquisition unit 33 in S111 to the control device 10 (S109). At this time, the data indicating the second anomaly detected by the anomaly detection unit 34 is also wirelessly transmitted to the control device 10 along with the second data. If the first data is stored in the memory area of the control device 28, the communication unit 35 may transmit the first data and the second data to the control device 10 together.
[0050] In the example shown in this embodiment, the first data is acquired when step 2A travels the outward path. The second data is acquired when step 2A travels the return path. Therefore, in the example shown in this embodiment, the data necessary to determine an anomaly can be acquired efficiently.
[0051] In this embodiment, an example was described in which step 2A is permanently installed on the escalator as one of the step 2 units. In another example, step 2A may be attached to the step shaft 15 only when acquiring the first and second data, such as during periodic inspections. In such a case, the escalator maintenance worker first removes one of the step 2 units from the step shaft 15. Then, the maintenance worker attaches step 2A to the step shaft 15 and turns on the power switch. After the acquisition of the first and second data is complete, the maintenance worker removes step 2A from the step shaft 15. The maintenance worker then reattaches the original step 2 to the step shaft 15.
[0052] In this embodiment, an example was described in which a distance sensor 26 is used to detect the accumulation of deposits in the oil pan 20. The distance sensor 26 may be equipped with a movable mechanism so that light from the light source 26a can be directed onto the entire surface of the oil pan 20.
[0053] In this embodiment, an example was described in which step 2A is equipped with a distance sensor 25 as the first sensor. In another example, step 2A may be equipped with an acceleration sensor as the first sensor. In this case, the acceleration sensor detects the acceleration of the structure of step 2A as first data. The acquisition unit 33 acquires the acceleration data detected by the acceleration sensor when step 2A is moving along the forward path in the first posture, i.e., the first data.
[0054] In such a case, in S107, the abnormality detection unit 34 determines whether the acceleration of step 2A moving along the forward path is greater than a specific threshold. The abnormality detection unit 34 detects a first abnormality by determining Yes in S107. In this example, the abnormality detection unit 34 can detect that debris is attached to rail 17a or rail 17b as the first abnormality.
[0055] In this embodiment, an example was described in which step 2A is equipped with a distance sensor 26 as a second sensor. In another example, step 2A may be equipped with an acceleration sensor as a second sensor. In this case, the acceleration sensor detects the acceleration of the structure of step 2A as second data. The acquisition unit 33 acquires the acceleration data detected by the acceleration sensor, i.e., the second data, when step 2A is moving on the return path in the second posture.
[0056] In such a case, in S112, the abnormality detection unit 34 determines whether the acceleration of step 2A moving on the return path is greater than a certain threshold. The abnormality detection unit 34 detects a second abnormality by determining Yes in S112. In this example, the abnormality detection unit 34 can detect that debris is attached to rail 19a or rail 19b as the second abnormality.
[0057] In this embodiment, an example was described in which the second data is detected by a sensor different from the sensor that detects the first data. As another example, both the first and second data may be detected by a single sensor. Figure 9 shows another example of step 2A. Step 2A shown in Figure 9 comprises a foot plate 21, a riser 22, a support member 23, a roller 24, a distance sensor 30, a posture sensor 27, a control device 28, and a battery 29.
[0058] The distance sensor 30 is provided in the structure of step 2. For example, the distance sensor 30 is fixed to the footplate 21.
[0059] The distance sensor 30 has the functions of both the distance sensor 25 and the distance sensor 26 in the example described above. That is, the distance sensor 30 detects first data necessary for determining a first abnormality and second data necessary for determining a second abnormality. For example, the distance sensor 30 detects the distance to the skirt guard 16 as the first data. The distance sensor 30 detects the distance to the oil pan 20 as the second data. To realize these functions, the distance sensor 30 is equipped with a light source 30a and a movable mechanism 30b. The movable mechanism 30b is a mechanism that can move so that the light emitted from the light source 30a can be switched between the side of the step 2A and the direction facing the tread surface 21a.
[0060] The control device 28 further comprises a switching unit 36 in addition to the sensor control unit 31, determination unit 32, acquisition unit 33, abnormality detection unit 34, and communication unit 35.
[0061] Figure 10 is a flowchart showing another example of step 2A operation. Figure 10 shows an example of step 2A operation with distance sensor 30.
[0062] The process shown in S201 is the same as the process shown in S101 in Figure 6. When the power switch is turned on (Yes in S201), the sensor control unit 31 turns off the distance sensor 30 as an initial setting (S202). In S202, no light is emitted from the light source 30a.
[0063] The processes shown in S203 and S204 are the same as the processes shown in S103 and S104 in Figure 6. When the elevator maintenance worker turns on the power switch and normal operation begins, step 2A moves along the outbound path toward, for example, exit 4. If step 2A is moving along the outbound path, S203 is determined to be Yes.
[0064] If the result in S203 is determined to be Yes, the sensor control unit 31 turns on the distance sensor 30 (S205). Also, if the result in S203 is determined to be Yes, the switching unit 36 switches the movable mechanism 30b so that light is emitted from the light source 30a toward the side of step 2A. As a result, when step 2A is moving forward in the first posture, light is emitted from the light source 30a toward the skirt guard 16.
[0065] In S205, light is emitted from the light source 30a toward the side, and the distance to the skirt guard 16 is detected by the distance sensor 30. The acquisition unit 33 acquires the distance data detected by the distance sensor 30 when step 2A is moving along the forward path in the first posture, i.e., the first data (S206).
[0066] The process shown in S207 to S209 is the same as the process shown in S107 to S109 in Figure 6.
[0067] On the other hand, if step 2A is moving on the return path, it is determined to be Yes in S204. If it is determined to be Yes in S204, the sensor control unit 31 turns on the distance sensor 30 (S210). Also, if it is determined to be Yes in S204, the switching unit 36 switches the movable mechanism 30b so that light is emitted from the light source 30a in the direction that the tread surface 21a is facing. If step 2A is moving on the return path, the tread surface 21a is facing downwards. That is, in S210, light is emitted downwards from the light source 30a. As a result, when step 2A is moving on the return path in the second posture, light is emitted from the light source 30a towards the oil pan 20.
[0068] In S210, light is emitted downward from the light source 30a, and the distance to the oil pan 20 is detected by the distance sensor 30. The acquisition unit 33 acquires the distance data detected by the distance sensor 30, i.e., the second data, when step 2A is moving on the return path in the second attitude (S211).
[0069] The processes shown in S212 and S213 are the same as the processes shown in S112 and S113 in Figure 6.
[0070] In the examples shown in Figures 9 and 10, the data necessary to determine anomalies can be efficiently acquired.
[0071] Figure 11 shows an example of the hardware resources of the control device 28. The control device 28 includes a processing circuit 40 as a hardware resource, which includes a processor 41 and memory 42. The processing circuit 40 may include multiple processors 41. The processing circuit 40 may include multiple memory 42.
[0072] In this embodiment, the parts indicated by reference numerals 31 to 36 represent functions of the control device 28. The functions of the parts indicated by reference numerals 31 to 36 can be realized by software, firmware, or a combination of software and firmware described as a program. The program is stored in memory 42. The control device 28 realizes the functions of the parts indicated by reference numerals 31 to 36 by executing the program stored in memory 42 using the processor 41. A semiconductor memory or the like can be used as memory 42.
[0073] Figure 12 shows another example of the hardware resources of the control device 28. In the example shown in Figure 12, the control device 28 includes a processor 41, memory 42, and a processing circuit 40 including dedicated hardware 43. Figure 12 shows an example in which some of the functions of the control device 28 are realized by the dedicated hardware 43. All of the functions of the control device 28 may also be realized by the dedicated hardware 43. The dedicated hardware 43 can be a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC, an FPGA, or a combination thereof. [Explanation of Symbols]
[0074] 1 Truss, 2 Step, 3 Entrance, 4 Exit, 5 Machine room, 6 Floorboard, 7 Machine room, 8 Floorboard, 9 Electric motor, 10 Control device, 11 Reducer, 12 Shaft, 13 Sprocket, 14 Step chain, 15 Step shaft, 16 Skirt guard, 17a~17b Rail, 18 Roller, 19a~19b Rail, 20 Oil pan, 21 Tread, 21a Tread surface, 22 Riser, 23 Support member, 24 Roller, 25 Distance sensor, 25a Light source, 26 Distance sensor, 26a Light source, 27 Attitude sensor, 28 Control device, 29 Battery, 30 Distance sensor, 30a Light source, 30b Movable mechanism, 31 Sensor control unit, 32 33 Judgment unit, 34 Acquisition unit, 35 Anomaly detection unit, 36 Communication unit, 40 Switching unit, 40 Processing circuit, 41 Processor, 42 Memory, 43 Dedicated hardware
Claims
1. A step in which the foot moves forward in a first position with the foot facing upward, and moves back in a second position with the foot facing downward, A drive device for driving the aforementioned step, Skirt guard and An oil pan positioned below the step that moves along the return path, Equipped with, The aforementioned step involves moving along the skirt guard along the forward path, The aforementioned step is, A structure including a tread plate on which the tread surface is formed and a support member that supports the tread plate, A light source is provided, and a distance sensor is provided on the structure, A posture sensor for detecting the posture of the footpeg, A switching means that, based on the posture detected by the posture sensor, emits light from the light source toward the skirt guard when the step is moving in the first posture, and emits light from the light source toward the oil pan when the step is moving in the second posture, An acquisition means for acquiring data detected by the distance sensor, A passenger conveyor equipped with a [unclear].
2. The control device for controlling the aforementioned drive device is further provided. The passenger conveyor according to claim 1, further comprising communication means for wirelessly transmitting the data acquired by the acquisition means to the control device.
3. A tread board with a tread surface formed therein, A support member that supports the aforementioned tread plate, A distance sensor having a light source is provided on the structure including the footplate and the support member, A posture sensor for detecting the posture of the footpeg, Based on the posture detected by the posture sensor, a switching means is provided to radiate light from the light source to the side when the tread is moving in a first posture where the tread is facing upward, and to radiate light from the light source downward when the tread is moving in a second posture where the tread is facing downward. An acquisition means for acquiring data detected by the distance sensor, Steps for a passenger conveyor equipped with a pedestrian walkway.