Passenger conveyor and steps for the passenger conveyor

Abstract

To provide a passenger conveyor capable of efficiently acquiring data required for determining abnormality.SOLUTION: A step 2 moves in first posture along a forward path and moves in second posture along a return path. The step 2 includes a structure, a distance sensor 25, a distance sensor 26, a posture sensor 27, and an acquisition unit 33. The acquisition unit 33 acquires first data detected by the distance sensor 25 when the step 2 moves in the first posture, and acquires second data detected by the distance sensor 26 when the step 2 moves in the second posture.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present disclosure relates to passenger conveyors and steps used in passenger conveyors. [Background technology]

[0002] Patent Document 1 describes a passenger conveyor. The passenger conveyor described in Patent Document 1 includes a step to which a camera is attached. The camera captures an image of debris accumulated in the oil pan. A maintenance worker determines the amount of debris accumulated in the oil pan based on the image captured by the camera. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2004-224558 Summary of the Invention [Problem to be solved by the invention]

[0004] The steps of a passenger conveyor move on an outward path from the boarding entrance to the exit entrance, and then move on a return path from the exit entrance back to the boarding entrance. The passenger conveyor described in Patent Document 1 only acquires the data necessary to determine whether there is an abnormality when the steps move on the return path. This poses a problem in that data acquisition cannot be performed efficiently.

[0005] The present disclosure has been made to solve the above-mentioned problems. An object of the present disclosure is to provide a passenger conveyor that can efficiently acquire data necessary for determining an abnormality. Another object of the present disclosure is to provide a step for a passenger conveyor that can efficiently acquire data necessary for determining an abnormality. [Means for solving the problem]

[0006] A passenger conveyor according to the present disclosure comprises a step that moves on an outbound path in a first position with its tread facing upward and moves on a return path in a second position with its tread facing downward, and a drive device that drives the step. The step comprises a structure including a tread plate on which the tread surface is formed and a support member that supports the tread plate, a first sensor provided on the structure for detecting first data necessary for determining a first abnormality, a second sensor provided on the structure for detecting second data necessary for determining a second abnormality different from the first abnormality, a posture sensor that detects the posture of the tread plate, and acquisition means that acquires the first data detected by the first sensor when the step is moving in the first position and acquires the second data detected by the second sensor when the step is moving in the second position based on the posture detected by the posture sensor.

[0008] The steps for passenger conveyors according to the present disclosure include a step plate having a tread surface formed thereon, a support member supporting the step plate, a first sensor provided on a structure including the step plate and the support member for detecting first data required to determine a first abnormality, a second sensor provided on the structure for detecting second data required to determine a second abnormality different from the first abnormality, a posture sensor for detecting the posture of the step plate, and a step sensor for detecting a first posture in which the tread surface faces upward based on the posture detected by the posture sensor. treadle The first data detected by the first sensor is acquired while the robot is moving, and the second posture is taken with the tread surface facing downward. treadle and acquiring means for acquiring second data detected by the second sensor while the vehicle is moving. [Effects of the Invention]

[0010] According to the present disclosure, data necessary for determining abnormalities in a passenger conveyor can be efficiently acquired. [Brief explanation of the drawings]

[0011] [Figure 1] FIG. 2 is a diagram showing an example of a passenger conveyor according to the first embodiment. [Figure 2] This is a view of the boarding entrance from above. [Figure 3] FIG. 2 is a plan view showing a step in the first embodiment. [Figure 4] FIG. 10 is a diagram for explaining the function of a step. [Figure 5] FIG. 10 is a diagram schematically illustrating steps of moving forward and steps of moving backward. [Figure 6] 10 is a flowchart showing an example of operation of a step. [Figure 7] FIG. 2 is a diagram for explaining the function of an abnormality detection unit. [Figure 8] FIG. 10 is a diagram for explaining another function of the abnormality detection unit. [Figure 9] FIG. 10 is a diagram illustrating another example of steps. [Figure 10] 10 is a flowchart showing another example of the operation of the step. [Figure 11] FIG. 2 illustrates an example of hardware resources of a control device. [Figure 12] FIG. 10 is a diagram illustrating another example of hardware resources of a control device. DETAILED DESCRIPTION OF THE INVENTION

[0012] The following detailed description will be given with reference to the drawings. Duplicate descriptions will be simplified or omitted as appropriate. In each drawing, the same reference numerals indicate the same or corresponding parts.

[0013] Embodiment 1 Fig. 1 is a diagram showing an example of a passenger conveyor in embodiment 1. Fig. 1 shows an escalator as an example of a passenger conveyor. Passenger conveyors also include moving walkways.

[0014] The escalator comprises a truss 1 and steps 2. The truss 1 spans the upper and lower floors. Passengers ride on the steps 2 to move from entrance 3 to exit 4. That is, Figure 1 shows an upward escalator. Figure 2 is a view of entrance 3 from above.

[0015] A machinery room 5 is provided below the entrance 3. The machinery room 5 is a space formed inside the truss 1. The machinery room 5 is closed by a floor plate 6. The floor plate 6 forms the floor of the entrance 3. Passengers transfer from the floor plate 6 to the step 2.

[0016] A machine room 7 is provided below the exit 4. The machine room 7 is a space formed inside the truss 1. The machine room 7 is closed by a floor plate 8. The floor plate 8 forms the floor of the exit 4. Passengers move from the step 2 to the floor plate 8.

[0017] 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 drive device that drives 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 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. A step 2 is fixed to each step shaft 15. In this way, a number of steps 2 are connected to the step chain 14.

[0018] The step 2 moves by being pulled by the step chain 14. Because the step chain 14 is endless, the step 2 moves in a circular motion. In the example shown in this embodiment, the step 2 emerges from under the floor board 6 at the entrance 3 and moves on the outbound path toward the exit 4. Passengers board the step 2 as it moves on the outbound path. Therefore, the step 2 moves on the outbound path while maintaining a specific posture. Hereinafter, the posture of the step 2 moving on the outbound path will also be referred to as the first posture. Skirt guards 16 are provided on both sides of the step 2 as it moves on the outbound path. The step 2 moves on the outbound path along the skirt guards 16.

[0019] Step 2 enters under floorboard 8 at exit 4 and reverses in machine room 7. After being reversed in machine room 7, step 2 moves back inside truss 1 toward machine room 5. Step 2 moves back in the reversed position. Hereinafter, the position of step 2 moving back is also referred to as the second position. Because lubricating oil is used in step chain 14, etc., an oil pan 20 is provided on truss 1. Oil pan 20 is located below step 2 moving back. Step 2 returns to the first position by reversing again in machine room 5 and reappears from under floorboard 6.

[0020] As described above, a large number of steps 2 are connected to the step chain 14. In the example shown in this embodiment, some of the steps 2 connected to the step chain 14 have the function of collecting data necessary to determine abnormalities. An escalator may be equipped with only one step 2 having such a function. In the following, the step having this function will be designated by the symbol 2A to distinguish it from other steps 2, i.e., steps 2 that do not have this function. Note that the functions of step 2A other than the function of collecting data are the same as the functions of other steps 2.

[0021] Fig. 3 is a plan view showing step 2A in embodiment 1. Fig. 4 is a diagram for explaining the function of step 2A.

[0022] Step 2A includes a step 21, a riser 22, a support member 23, a roller 24, a distance sensor 25, a distance sensor 26, a position sensor 27, a control device 28, and a battery 29. The step 21, the riser 22, the support member 23, and the roller 24 are also included in other steps 2.

[0023] A tread surface 21a is formed on the step board 21. The tread surface 21a is the surface on which passengers stand. The step board 21 is supported from below by a support member 23. FIG. 5 is a diagram schematically showing a step 2A moving in the outbound path and a step 2A moving in the return path. In the first position, the tread surface 21a faces upward. In the second position, the tread surface 21a faces downward.

[0024] The riser 22 is a curved plate-like member. The riser 22 is arranged so as to extend downward from the edge of the tread 21 when the step 2A moves forward. 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.

[0025] The escalator is provided with rails 17a and 17b for guiding the movement of step 2A on the outward path. Rails 17a and 17b are supported by truss 1. When step 2A moves on the outward path, roller 24 rolls on rail 17a. Also, as shown in FIG. 3, a number of rollers 18 are rotatably mounted on step chain 14. Rollers 18 may be rotatably mounted on step shaft 15. When step 2A moves on the outward path, roller 18 rolls on rail 17b. Rails 17a and 17b maintain the posture of step 2 moving on the outward path, i.e., the first posture.

[0026] Similarly, the escalator is provided with rails 19a and 19b for guiding the return movement of step 2A. Rails 19a and 19b are supported by truss 1. When step 2A moves on the return path, roller 24 rolls on rail 19a. Also, when step 2A moves on the return path, roller 18 rolls on rail 19b. Rails 19a and 19b maintain the posture of step 2 moving on the return path, i.e., the second posture.

[0027] The distance sensor 25, the distance sensor 26, the attitude sensor 27, the control device 28, and the battery 29 are provided on the structure of the step 2. The structure of the step 2 includes the footboard 21, the riser 22, and the support member 23. For example, the distance sensor 25, the distance sensor 26, the attitude sensor 27, the control device 28, and the battery 29 are fixed to the footboard 21.

[0028] 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 abnormality. As an example, the first abnormality is an abnormality 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 the step 2A. The side of the step 2A is the direction extending to the left and right as seen from a passenger on the step 2A facing the direction of movement of the step 2A.

[0029] The skirt guards 16 are disposed on both sides of the step 2A as it moves forward. For this reason, the step 2A is preferably provided with a pair of distance sensors 25. One distance sensor 25 emits light from a light source 25a so that the light hits a side surface of one of the skirt guards 16 as the step 2A moves forward. The other distance sensor 25 emits light from a light source 25a so that the light hits a side surface of the other skirt guard 16 as the step 2A moves forward.

[0030] 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 abnormality. The second data is different from the first data. Furthermore, the second abnormality is an abnormality different from the first abnormality. As an example, the second abnormality is an abnormality related to 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. The light source 26a emits light in the direction in which the tread 21a faces.

[0031] The attitude sensor 27 detects the attitude of the step board 21. In the example shown in this embodiment, the attitude of the step board 21 and the attitude of the step 2A are synonymous. For example, the step 2A is equipped with a gyro sensor as the attitude sensor 27. The step 2A may also be equipped with an acceleration sensor as the attitude sensor 27.

[0032] The control device 28 includes a sensor control unit 31, a determination unit 32, an acquisition unit 33, an abnormality detection unit 34, and a communication unit 35. The sensor control unit 31 controls the distance sensor 25 and the distance sensor 26. The communication unit 35 communicates with the control device 28.

[0033] The power required for each of the distance sensor 25 , the distance sensor 26 , the attitude sensor 27 , and the control device 28 is supplied from a battery 29 .

[0034] FIG. 6 is a flowchart showing an example of the operation of step 2A.

[0035] The control device 28 determines whether a power switch (not shown) is on or not (S101). As an example, the power switch is manually switched on and off by an elevator maintenance worker.

[0036] When the power switch is turned on (Yes in S101), the sensor control unit 31 turns off the distance sensor 25 and the distance sensor 26 as an initial setting (S102). In S102, no light is emitted from the light source 25a. No light is emitted from the light source 26a.

[0037] If the determination in S101 is Yes, the determination unit 32 determines whether the step 2A is in the first posture (S103). The determination in S103 is made based on the posture of the tread 21 detected by the posture sensor 27. In S103, the determination unit 32 may determine whether the step 2A is moving in the first posture.

[0038] If the determination in S103 is No, the determination unit 32 determines whether the step 2A is in the second posture (S104). The determination in S104 is made based on the posture of the tread 21 detected by the posture sensor 27. In S104, the determination unit 32 may determine whether the step 2A is moving in the second posture.

[0039] When the elevator maintenance person turns on the power switch and starts normal operation, step 2A moves in the outward direction, for example, toward exit 4. If step 2A is moving in the outward direction, the determination in S103 is Yes.

[0040] If the determination in S103 is Yes, the sensor control unit 31 turns on the distance sensor 25 (S105). As a result, when the step 2A is moving on the outward path in the first posture, light is emitted from the light source 25a toward the skirt guard 16. Also, in S105, the sensor control unit 31 turns off the distance sensor 26. As a result, when the step 2A is moving on the outward path in the first posture, light is not emitted from the light source 26a.

[0041] In S105, light is emitted laterally from the light source 25a, and the distance to the skirt guard 16 is detected by the distance sensor 25. The acquisition unit 33 acquires data on the distance detected by the distance sensor 25 when the step 2A is moving on the outward path in the first posture, i.e., first data (S106).

[0042] The abnormality detection unit 34 detects a first abnormality based on the first data acquired by the acquisition unit 33 in S106. For example, the abnormality detection unit 34 determines whether the gap G between the skirt guard 16 and the step 2A is larger than a first threshold value (S107). The gap G is obtained from the first data acquired by the acquisition unit 33. The first threshold value is set in advance.

[0043] FIG. 7 is a diagram for explaining the function of the abnormality detection unit 34. In the example shown in FIG. 7, in section A, the gap G between the skirt guard 16 and step 2 (2A) is larger than the first threshold value. Therefore, when step 2A passes through section A, a Yes determination is made in S107. By determining Yes in S107, the abnormality detection unit 34 detects a first abnormality (S108). In the example shown in FIG. 7, the abnormality detection unit 34 detects that the gap G has widened in section A.

[0044] 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, data indicating the first abnormality detected by the abnormality detection unit 34 is also wirelessly transmitted to the control device 10 together with the first data. Note that the timing at which the communication unit 35 transmits the first data may be any timing. For example, the first data may be transmitted to the control device 10 together with second data, which will be described later. In such a case, the first data is temporarily stored in a memory area of ​​the control device 28 until the second data is acquired.

[0045] While step 2A is moving in the outward direction in the first position, the processes shown in S105 to S108 are repeated. Step 2A enters under the floorboard 8 at the exit 4 and reverses in the machine room 7. This results in a No determination in S103. Step 2A, which has reversed in the machine room 7, moves in the return direction toward the machine room 5. If step 2A is moving in the return direction, a Yes determination is made in S104.

[0046] If the determination in S104 is Yes, the sensor control unit 31 turns on the distance sensor 26 (S110). As a result, when the step 2A is moving back in the second posture, light is emitted from the light source 26a toward the oil pan 20. Also, in S110, the sensor control unit 31 turns off the distance sensor 25. As a result, when the step 2A is moving back in the second posture, light is not emitted from the light source 25a.

[0047] 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 data on the distance detected by the distance sensor 26 when the step 2A is moving on the return path in the second posture, i.e., second data (S111).

[0048] The abnormality detection unit 34 detects a second abnormality based on the second data acquired by the acquisition unit 33 in S111. For example, the abnormality detection unit 34 determines whether the distance L between the tread surface 21a of the step 2A and the oil pan 20 is smaller than a second threshold value (S112). The distance L is obtained from the second data acquired by the acquisition unit 33. The second threshold value is set in advance.

[0049] If there is no deposit on the oil pan 20, the distance L is the distance between the tread 21a and the surface of the oil pan 20. If the light from the light source 26a hits deposits on the oil pan 20, the distance L is the distance between the tread 21a and the deposits.

[0050] FIG. 8 is a diagram for explaining another function of the abnormality detection unit 34. In the example shown in FIG. 8, light from the light source 26a hits deposits on the oil pan 20, causing the distance L to be smaller than the second threshold in section B. Therefore, when step 2A passes through section B, a Yes determination is made in S112. By determining Yes in S112, the abnormality detection unit 34 detects a second abnormality (S113). In the example shown in FIG. 8, the abnormality detection unit 34 detects that deposits have accumulated in section B.

[0051] 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, data indicating the second abnormality detected by the abnormality detection unit 34 is also wirelessly transmitted to the control device 10 together 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 together to the control device 10.

[0052] In the example shown in this embodiment, the first data is acquired when step 2A moves forward. The second data is acquired when step 2A moves backward. Therefore, in the example shown in this embodiment, the data required to determine an abnormality can be acquired efficiently.

[0053] In this embodiment, an example has been described in which step 2A is permanently installed on the escalator as one of the steps 2. As another example, step 2A may be attached to the step shaft 15 only when the first data and second data are to be acquired, such as during periodic inspections. In such a case, the escalator maintenance technician first removes one of the steps 2 from the step shaft 15. Then, the maintenance technician attaches step 2A to that step shaft 15 and turns on the power switch. After completing the acquisition of the first data and second data, the maintenance technician removes step 2A from the step shaft 15. Then, the maintenance technician simply attaches the original step 2 to that step shaft 15.

[0054] In the present embodiment, an example has been described in which distance sensor 26 is used to detect the accumulation of deposits in oil pan 20. Distance sensor 26 may be provided with a movable mechanism so that light from light source 26a can be directed onto the entire surface of oil pan 20.

[0055] In this embodiment, an example has been described in which step 2A is equipped with distance sensor 25 as the first sensor. As another example, step 2A may be equipped with an acceleration sensor as the first sensor. In such a case, the acceleration sensor detects the acceleration of the structure of step 2A as the first data. Acquisition unit 33 acquires acceleration data detected by the acceleration sensor when step 2A is moving on the outbound path in the first posture, i.e., the first data.

[0056] In this case, in S107, the abnormality detection unit 34 determines whether the acceleration of step 2A moving on the outward 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 dirt is attached to rail 17a or rail 17b as the first abnormality.

[0057] In this embodiment, an example has been described in which step 2A is equipped with distance sensor 26 as the second sensor. As another example, step 2A may be equipped with an acceleration sensor as the second sensor. In such a case, the acceleration sensor detects the acceleration of the structure of step 2A as the second data. Acquisition unit 33 acquires the acceleration data detected by the acceleration sensor when step 2A is moving on the return path in the second posture, i.e., the second data.

[0058] In this case, in S112, the abnormality detection unit 34 determines whether the acceleration of step 2A during the return path is greater than a specific 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 dirt is attached to rail 19a or rail 19b as the second abnormality.

[0059] In this embodiment, an example has been 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 data and the second data may be detected by a single sensor. FIG. 9 is a diagram showing another example of step 2A. Step 2A shown in FIG. 9 includes a tread 21, a riser 22, a support member 23, a roller 24, a distance sensor 30, a position sensor 27, a control device 28, and a battery 29.

[0060] The distance sensor 30 is provided on the structure of the step 2. For example, the distance sensor 30 is fixed to the step 21.

[0061] The distance sensor 30 has the functions of the distance sensor 25 and the distance sensor 26 in the above example. That is, the distance sensor 30 detects first data necessary to determine a first abnormality and second data necessary to determine 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 achieve 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 moves so that the light emitted from the light source 30a can be switched between the side of the step 2A and the direction in which the tread surface 21a faces.

[0062] The control device 28 includes a sensor control unit 31, a determination unit 32, an acquisition unit 33, an abnormality detection unit 34, and a communication unit 35, as well as a switching unit 36.

[0063] 10 is a flowchart showing another example of the operation of step 2 A. FIG. 10 shows an example of the operation of step 2 A in which the distance sensor 30 is provided.

[0064] The process shown in S201 is the same as the process shown in S101 in Fig. 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.

[0065] The processes shown in S203 and S204 are the same as the processes shown in S103 and S104 in Fig. 6. When the elevator maintenance person turns on the power switch and starts normal operation, step 2A moves on the outbound path, for example, toward exit 4. If step 2A is moving on the outbound path, a Yes determination is made in S203.

[0066] If S203 returns Yes, the sensor control unit 31 turns on the distance sensor 30 (S205). If S203 returns Yes, the switching unit 36 ​​switches the movable mechanism 30b so that light is emitted from the light source 30a toward the side of the step 2A. As a result, when the step 2A is moving forward in the first posture, light is emitted from the light source 30a toward the skirt guard 16.

[0067] In S205, light is emitted laterally from the light source 30a, and the distance to the skirt guard 16 is detected by the distance sensor 30. The acquisition unit 33 acquires distance data detected by the distance sensor 30 when the step 2A is moving on the outward path in the first posture, i.e., first data (S206).

[0068] The processing shown in S207 to S209 is the same as the processing shown in S107 to S109 in FIG.

[0069] On the other hand, if the step 2A is moving in the return path, the determination in S204 is Yes. If the determination in S204 is Yes, the sensor control unit 31 turns on the distance sensor 30 (S210). Also, if the determination in S204 is Yes, the switching unit 36 ​​switches the movable mechanism 30b so that light is emitted from the light source 30a in the direction in which the tread 21a faces. If the step 2A is moving in the return path, the tread 21a faces downward. That is, in S210, light is emitted from the light source 30a downward. As a result, when the step 2A is moving in the return path in the second posture, light is emitted from the light source 30a toward the oil pan 20.

[0070] In S210, light is emitted downward from the light source 30a, and the distance sensor 30 detects the distance to the oil pan 20. The acquisition unit 33 acquires data on the distance detected by the distance sensor 30 when the step 2A is moving on the return path in the second posture, i.e., second data (S211).

[0071] The processes shown in S212 and S213 are the same as the processes shown in S112 and S113 in FIG.

[0072] In the examples shown in FIGS. 9 and 10, the data required to determine an abnormality can also be efficiently acquired.

[0073] 11 is a diagram showing an example of hardware resources of the control device 28. The control device 28 includes, as hardware resources, a processing circuit 40 including a processor 41 and a memory 42. The processing circuit 40 may include multiple processors 41. The processing circuit 40 may include multiple memories 42.

[0074] In this embodiment, the units denoted by reference numerals 31 to 36 represent functions possessed by the control device 28. The functions of the units denoted by reference numerals 31 to 36 can be realized by software written as a program, firmware, or a combination of software and firmware. The program is stored in a memory 42. The control device 28 realizes the functions of the units denoted by reference numerals 31 to 36 by executing the program stored in the memory 42 using a processor 41. A semiconductor memory or the like can be used as the memory 42.

[0075] Fig. 12 is a diagram showing another example of hardware resources of the control device 28. In the example shown in Fig. 12, the control device 28 includes a processing circuit 40 including a processor 41, a memory 42, and dedicated hardware 43. Fig. 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 may 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]

[0076] 1 truss, 2 step, 3 entrance, 4 exit, 5 machine room, 6 floor board, 7 machine room, 8 floor board, 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 step, 21a tread, 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 moving mechanism, 31 sensor control unit, 32 Determination unit, 33 acquisition unit, 34 abnormality detection unit, 35 communication unit, 36 switching unit, 40 processing circuit, 41 processor, 42 memory, 43 dedicated hardware

Claims

1. a step of moving on an outward path in a first posture in which the tread surface faces upward, and moving on a return path in a second posture in which the tread surface faces downward; a drive unit for driving the step; Equipped with The steps include: a structure including a tread plate on which the tread surface is formed and a support member supporting the tread plate; a first sensor provided in the structure for detecting first data necessary to determine a first abnormality; a second sensor provided in the structure for detecting second data necessary to determine a second abnormality different from the first abnormality; a posture sensor for detecting the posture of the footboard; an acquisition means for acquiring the first data detected by the first sensor when the step is moving in the first position, and acquiring the second data detected by the second sensor when the step is moving in the second position, based on the position detected by the position sensor; A passenger conveyor equipped with

2. Further, a control device for controlling the driving device is provided. The passenger conveyor according to claim 1 , further comprising a communication means for wirelessly transmitting the first data and the second data acquired by the acquisition means to the control device.

3. It also has a skirt guard. The step moves along the outward path along the skirt guard, the first sensor is a distance sensor having a first light source; 3. The passenger conveyor according to claim 1, wherein light is emitted from the first light source toward the skirt guard when the step is moving in the first position.

4. 4. The passenger conveyor according to claim 3, wherein no light is emitted from said first light source when said step is moving in said second position.

5. an oil pan disposed below the step that moves along the return path; the second sensor is a distance sensor having a second light source; 5. The passenger conveyor according to claim 1, wherein light is emitted from the second light source toward the oil pan when the step is moving in the second position.

6. 6. The passenger conveyor according to claim 5, wherein no light is emitted from said second light source when said step is moving in said first position.

7. A tread plate having a tread surface formed thereon; A support member that supports the tread; a first sensor provided on a structure including the footboard and the support member, for detecting first data necessary to determine a first abnormality; a second sensor provided in the structure for detecting second data necessary to determine a second abnormality different from the first abnormality; a posture sensor for detecting the posture of the footboard; an acquisition means for acquiring the first data detected by the first sensor when the tread is moving in a first position in which the tread surface faces upward, based on the position detected by the position sensor, and acquiring the second data detected by the second sensor when the tread is moving in a second position in which the tread surface faces downward; Steps for passenger conveyors with

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