Elevator door device system

Abstract

An elevator door device system is obtained which can detect abnormalities of a drive motor, a drive pulley, a drive belt, and a driven pulley, and abnormalities of a drive roller, a linkage rope, and a driven roller. The elevator door device system comprises a first rotation speed measuring device for measuring the rotation speed of a driving belt wheel; a second rotational speed measuring device that measures the rotational speed of the driven pulley and the rotational speed of the drive roller; a third rotational speed measuring device that measures the rotational speed of the driven roller; and an abnormality detection device that detects an abnormality in the drive motor using the measurement result of the first rotational speed measurement device, and that detects an abnormality in the drive pulley, the drive belt, and the driven pulley using the measurement result of the first rotational speed measurement device and the measurement result of the second rotational speed measurement device. Abnormalities of the drive roller, the linkage rope, and the driven roller are detected using the measurement results of the second rotational speed measurement device and the measurement results of the third rotational speed measurement device.

Description

Technical Field

[0001] The present disclosure relates to an elevator door arrangement system. Background Art

[0002] Conventionally, there is a known elevator door system that measures the time it takes for an elevator door to move from a closed position to an open position and compares the measured time with a predetermined reference value. This elevator door system determines whether there is an abnormality in the elevator door system by comparing the measured time with the predetermined reference value (see, for example, Patent Document 1).

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Laid-Open No. 2017-193399 Summary of the Invention

[0006] Problems to be solved by the invention

[0007] An elevator door system includes a drive motor, a drive pulley, a drive belt, a driven pulley, a drive roller, an interlocking rope, and a driven roller. Abnormalities in the elevator door system include abnormalities in the drive motor, the drive pulley, the drive belt, and the driven pulley, as well as abnormalities in the drive roller, the interlocking rope, and the driven roller. However, the structure described in Patent Document 1 makes it impossible to determine whether the abnormality in the elevator door system is an abnormality in the drive motor, the drive pulley, the drive belt, and the driven pulley, or the drive roller, the interlocking rope, and the driven roller. Consequently, there is a problem: if an abnormality in the elevator door system is detected, the entire drive motor, drive pulley, drive belt, driven pulley, drive roller, interlocking rope, and driven roller must be replaced.

[0008] The present disclosure is made to solve the above-mentioned problems, and its purpose is to provide an elevator door device system that can detect abnormalities of a drive motor, a drive pulley, a drive belt, and a driven pulley, and abnormalities of a drive roller, an interlocking rope, and a driven roller.

[0009] Means for solving problems

[0010] The elevator door device system disclosed in the present invention comprises: a first speed measuring device, which measures the speed of a driving pulley connected to a driving motor; a second speed measuring device, which measures the speed of a driven pulley to which a rotational force is transmitted from the driving pulley via a driving belt and the speed of a driving roller rotating together with the driven pulley; a third speed measuring device, which measures the speed of a driven roller to which a rotational force is transmitted from the driving roller via an interlocking rope; and an abnormality detecting device, which uses the measurement results of the first speed measuring device to detect abnormalities in the driving motor, uses the measurement results of the first speed measuring device and the measurement results of the second speed measuring device to detect abnormalities in the driving pulley, the driving belt and the driven pulley, and uses the measurement results of the second speed measuring device and the measurement results of the third speed measuring device to detect abnormalities in the driving roller, the interlocking rope and the driven roller.

[0011] Effects of the Invention

[0012] According to the elevator door device system disclosed herein, it is possible to detect abnormalities in the drive motor, the drive pulley, the drive belt, and the driven pulley, and the drive roller, the interlocking rope, and the driven roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a block diagram showing the elevator door system according to the first embodiment.

[0014] Figure 2 It shows Figure 1 A front view of the elevator door device 1 in the closed state.

[0015] Figure 3 It shows Figure 1 A front view of the elevator door device 1 in the open door state.

[0016] Figure 4 This is a flowchart showing the processing when the door is opened in the elevator door device system according to the first embodiment.

[0017] Figure 5 It shows Figure 4 Flowchart of the drive motor abnormality determination steps.

[0018] Figure 6 It shows Figure 4 Flowchart of the drive pulley / drive belt / driven pulley abnormality determination steps.

[0019] Figure 7 It shows Figure 4 Flowchart of the driving roller / interlocking rope / driven roller abnormality judgment steps.

[0020] Figure 8 It shows Figure 4 Flowchart of the hanger roller abnormality determination steps.

[0021] Figure 9 It shows Figure 4 Flowchart of the hanger rail abnormality determination steps during the hanger roller acceleration process.

[0022] Figure 10 It shows Figure 4 Flowchart of the hanger rail abnormality determination steps in the hanger roller constant speed process.

[0023] Figure 11 It shows Figure 4 Flowchart of the hanger rail abnormality determination steps during the hanger roller deceleration process.

[0024] Figure 12 It shows Figure 4 Flowchart of the steps for determining hanger roller wear and replacement. DETAILED DESCRIPTION

[0025] Implementation Method 1

[0026] Figure 1 This is a block diagram illustrating an elevator door system according to Embodiment 1. The elevator door system according to Embodiment 1 includes an elevator door system 1, an elevator control panel 2, a remote monitoring device 3, and an information center 4. Furthermore, the elevator door system according to Embodiment 1 includes a first rotation speed measuring device 5, a second rotation speed measuring device 6, a third rotation speed measuring device 7, a fourth rotation speed measuring device 8, and an abnormality detection device 9.

[0027] The elevator door device 1 includes a drive motor 101 and a door control device 102. The door control device 102 controls the driving of the drive motor 101.

[0028] Figure 2 It shows Figure 1 A front view of the elevator door device 1 in the closed state. Figure 3 It shows Figure 1 This figure shows a front view of an elevator door device 1 in an open state. The elevator door device 1 includes a hanger housing 103, a drive pulley 104, a drive belt 105, a driven pulley 106, a drive roller 107, a linkage rope 108, and a driven roller 109. Furthermore, the elevator door device 1 includes a door rail 110, a first car door 111, a second car door 112, a first door hanger 113, a second door hanger 114, a first connecting member 115, and a second connecting member 116. Furthermore, the elevator door device 1 includes a first hanger roller 117, a second hanger roller 118, a third hanger roller 119, and a fourth hanger roller 120.

[0029] The hanger housing 103 is installed in an elevator car (not shown). Figure 2 and Figure 3A portion of the elevator door device 1 is shown as viewed from a landing (not shown). A drive motor 101 is mounted on the elevator car. A drive pulley 104 is connected to the rotating shaft of the drive motor 101. Therefore, when the drive motor 101 is driven, the drive pulley 104 rotates.

[0030] The first rotation speed measuring device 5 is provided on the drive pulley 104. The first rotation speed measuring device 5 measures the rotation speed of the drive pulley 104. The measurement result of the first rotation speed measuring device 5 is output from the first rotation speed measuring device 5. The rotation speed of the drive pulley 104 measured by the first rotation speed measuring device 5 is referred to as the measured drive pulley rotation speed M1.

[0031] The driven pulley 106 is rotatably supported on the hanger housing 103. The drive belt 105 is formed into an endless shape. The drive belt 105 is provided across the drive pulley 104 and the driven pulley 106. The rotational force of the drive pulley 104 is transmitted to the drive belt 105. As the drive pulley 104 rotates, the drive belt 105 circulates. The rotational force of the drive pulley 104 is transmitted to the driven pulley 106 via the drive belt 105. As a result, the drive pulley 104 rotates, which in turn rotates the driven pulley 106.

[0032] The driving roller 107 is connected to the driven pulley 106. When the driven pulley 106 rotates, the driving roller 107 rotates. The rotation speed of the driven pulley 106 and the rotation speed of the driving roller 107 are the same as each other.

[0033] The second rotation speed measuring device 6 is provided on the driven pulley 106 or the driving roller 107. The second rotation speed measuring device 6 measures the rotation speed of the driven pulley 106 and the rotation speed of the driving roller 107. The measurement results of the second rotation speed measuring device 6 are output from the second rotation speed measuring device 6. The rotation speed of the driven pulley 106 measured by the second rotation speed measuring device 6 is referred to as the measured driven pulley rotation speed M2, and the rotation speed of the driving roller 107 measured by the second rotation speed measuring device 6 is referred to as the measured driving roller rotation speed M3. In the elevator door device system of Embodiment 1, the measured driven pulley rotation speed M2 and the measured driving roller rotation speed M3 are the same.

[0034] Alternatively, the second rotation speed measuring device 6 may include a driven pulley rotation speed measuring section that measures the rotation speed of the driven pulley 106 and a driving roller rotation speed measuring section that measures the rotation speed of the driving roller 107 .

[0035] The driven roller 109 is rotatably supported on the hanger housing 103. The driving roller 107 and the driven roller 109 are arranged apart from each other in the width direction D of the elevator car. The width direction D of the elevator car is a direction perpendicular to the height direction of the elevator car when viewed from the landing. The interlocking rope 108 is formed in a loop. The interlocking rope 108 is provided across the driving roller 107 and the driven roller 109. The rotational force of the driving roller 107 is transmitted to the interlocking rope 108. As the driving roller 107 rotates, the interlocking rope 108 circulates. The rotational force of the driving roller 107 is transmitted to the driven roller 109 via the interlocking rope 108. Therefore, the driving roller 107 rotates, thereby rotating the driven roller 109.

[0036] The third rotation speed measuring device 7 is provided on the driven roller 109. The third rotation speed measuring device 7 measures the rotation speed of the driven roller 109. The measurement result of the third rotation speed measuring device 7 is output from the third rotation speed measuring device 7. The rotation speed of the driven roller 109 measured by the third rotation speed measuring device 7 is referred to as the measured driven roller rotation speed M4.

[0037] Immediately after the elevator door device 1 is installed in the elevator car, the diameter of the driving roller 107 and the diameter of the driven roller 109 are the same as each other.

[0038] The door rail 110 is mounted on the hanger housing 103. The door rail 110 is arranged along the width direction D of the elevator car. Therefore, the direction along the door rail 110 is the same direction as the direction along the width direction A of the elevator car.

[0039] The first door hanger 113 is a door hanger attached to the upper portion of the first car door 111. The first hanger roller 117 and the second hanger roller 118 are hanger rollers provided on the first door hanger 113. The first hanger roller 117 and the second hanger roller 118 are rotatably attached to the first door hanger 113.

[0040] The first hanger roller 117 and the second hanger roller 118 are arranged to be spaced apart from each other in the width direction D of the elevator car. The first hanger roller 117 and the second hanger roller 118 are respectively placed on the upper surface of the door rail 110. The first car door 111 is supported on the door rail 110 via the first door hanger 113, the first hanger roller 117, and the second hanger roller 118. When the first car door 111 moves in the width direction D of the elevator car, the first hanger roller 117 and the second hanger roller 118 roll on the upper surface of the door rail 110.

[0041] The second door hanger 114 is a door hanger attached to the upper portion of the second car door 112. The third hanger roller 119 and the fourth hanger roller 120 are hanger rollers provided on the second door hanger 114. The third hanger roller 119 and the fourth hanger roller 120 are rotatably attached to the second door hanger 114.

[0042] The third hanger roller 119 and the fourth hanger roller 120 are arranged to be spaced apart from each other in the width direction D of the elevator car. The third hanger roller 119 and the fourth hanger roller 120 are respectively placed on the upper surface of the door rail 110. The second car door 112 is supported on the door rail 110 via the second door hanger 114, the third hanger roller 119, and the fourth hanger roller 120. When the second car door 112 moves in the width direction D of the elevator car, the third hanger roller 119 and the fourth hanger roller 120 roll on the upper surface of the door rail 110.

[0043] The first connecting member 115 connects the first door hanger 113 and the lower portion of the interlocking rope 108. As the interlocking rope 108 circulates, the first connecting member 115 moves in the width direction D of the elevator car. As the first connecting member 115 moves, the first car door 111 moves in the width direction D of the elevator car.

[0044] The second connecting member 116 connects the second door hanger 114 and the upper portion of the interlocking rope 108. As the interlocking rope 108 circulates, the second connecting member 116 moves in the width direction D of the elevator car. As the second connecting member 116 moves, the second car door 112 moves in the width direction D of the elevator car.

[0045] The direction in which the first connecting member 115 moves is opposite to the direction in which the second connecting member 116 moves. Therefore, the direction in which the first car door 111 moves is opposite to the direction in which the second car door 112 moves.

[0046] The fourth rotation speed measuring device 8 includes a first hanger roller rotation speed measuring section 801 , a second hanger roller rotation speed measuring section 802 , a third hanger roller rotation speed measuring section 803 , and a fourth hanger roller rotation speed measuring section 804 .

[0047] The first hanger roller rotation speed measuring unit 801 is provided on the first hanger roller 117. The first hanger roller rotation speed measuring unit 801 measures the rotation speed of the first hanger roller 117. The second hanger roller rotation speed measuring unit 802 is provided on the second hanger roller 118. The second hanger roller rotation speed measuring unit 802 measures the rotation speed of the second hanger roller 118. The third hanger roller rotation speed measuring unit 803 is provided on the third hanger roller 119. The third hanger roller rotation speed measuring unit 803 measures the rotation speed of the third hanger roller 119. The fourth hanger roller rotation speed measuring unit 804 is provided on the fourth hanger roller 120. The fourth hanger roller rotation speed measuring unit 804 measures the rotation speed of the fourth hanger roller 120.

[0048] The measurement results of the fourth rotation speed measuring device 8 are output from the fourth rotation speed measuring device 8. The rotation speed of the first hanger roller 117 measured by the first hanger roller rotation speed measuring unit 801 is set as the measured first hanger roller rotation speed M5. The rotation speed of the second hanger roller 118 measured by the second hanger roller rotation speed measuring unit 802 is set as the measured second hanger roller rotation speed M6. The rotation speed of the third hanger roller 119 measured by the third hanger roller rotation speed measuring unit 803 is set as the measured third hanger roller rotation speed M7. The rotation speed of the fourth hanger roller 120 measured by the fourth hanger roller rotation speed measuring unit 804 is set as the measured fourth hanger roller rotation speed M8.

[0049] Immediately after the elevator door device 1 is installed in the elevator car, the diameters of the first hanger roller 117 , the second hanger roller 118 , the third hanger roller 119 , and the fourth hanger roller 120 are the same.

[0050] The measured drive pulley rotational speed M1 output from the first rotational speed measuring device 5 is input to the abnormality detection device 9. The first rotational speed measuring device 5 performs measurement each time the elevator door device 1 is driven. The measured drive pulley rotational speed M1 is input to the abnormality detection device 9 each time the first rotational speed measuring device 5 performs measurement.

[0051] The measured driven pulley rotational speed M2 and the measured driving roller rotational speed M3 output from the second rotational speed measuring device 6 are input to the abnormality detection device 9. The second rotational speed measuring device 6 performs a measurement each time the elevator door device 1 is driven. Each time the second rotational speed measuring device 6 performs a measurement, the measured driven pulley rotational speed M2 and the measured driving roller rotational speed M3 are input to the abnormality detection device 9.

[0052] The measured driven roller rotational speed M4 output from the third rotational speed measuring device 7 is input to the abnormality detection device 9. The third rotational speed measuring device 7 performs measurement each time the elevator door device 1 is driven. The measured driven roller rotational speed M4 is input to the abnormality detection device 9 each time the third rotational speed measuring device 7 performs measurement.

[0053] The measured first hanger roller rotational speed M5, the measured second hanger roller rotational speed M6, the measured third hanger roller rotational speed M7, and the measured fourth hanger roller rotational speed M8 output from the fourth rotational speed measuring device 8 are input to the abnormality detection device 9. The fourth rotational speed measuring device 8 performs measurement each time the elevator door device 1 is driven. Each time the fourth rotational speed measuring device 8 performs measurement, the measured first hanger roller rotational speed M5, the measured second hanger roller rotational speed M6, the measured third hanger roller rotational speed M7, and the measured fourth hanger roller rotational speed M8 are input to the abnormality detection device 9.

[0054] The abnormality detection device 9 detects an abnormality in the drive motor 101 using the measurement result of the first rotation speed measurement device 5. Specifically, the abnormality detection device 9 detects an abnormality in the drive motor 101 as follows.

[0055] A reference drive pulley speed R1 is pre-set for the abnormality detection device 9. The reference drive pulley speed R1 is a reference value used to determine whether the drive motor 101 has an abnormality. The abnormality detection device 9 compares the measured drive pulley speed M1 with the reference drive pulley speed R1 to detect an abnormality in the drive motor 101.

[0056] Specifically, when the measured drive pulley rotational speed M1 and the reference drive pulley rotational speed R1 are consistent with each other, the abnormality detection device 9 determines that there is no abnormality in the drive motor 101. On the other hand, when the measured drive pulley rotational speed M1 and the reference drive pulley rotational speed R1 are inconsistent with each other, the abnormality detection device 9 determines that there is an abnormality in the drive motor 101.

[0057] Whether the measured drive pulley rotation speed M1 and the reference drive pulley rotation speed R1 coincide with each other is determined based on whether the difference between the measured drive pulley rotation speed M1 and the reference drive pulley rotation speed R1 is within a preset range.

[0058] Furthermore, the abnormality detection device 9 detects abnormalities in the drive pulley 104, the drive belt 105, and the driven pulley 106 using the measurement results of the first rotation speed measuring device 5 and the measurement results of the second rotation speed measuring device 6. Specifically, the abnormality detection device 9 detects abnormalities in the drive pulley 104, the drive belt 105, and the driven pulley 106 as follows.

[0059] The abnormality detection device 9 predicts the rotational speed of the driven pulley 106 based on the measured drive pulley rotational speed M1. The predicted rotational speed of the driven pulley 106 is defined as the predicted driven pulley rotational speed R2. The abnormality detection device 9 compares the measured driven pulley rotational speed M2 with the predicted driven pulley rotational speed R2 to detect abnormalities in the drive pulley 104, drive belt 105, and driven pulley 106.

[0060] Specifically, when the measured driven pulley speed M2 and the predicted driven pulley speed R2 are consistent with each other, the abnormality detection device 9 determines that there is no abnormality in the drive pulley 104, the drive belt 105, and the driven pulley 106. On the other hand, when the predicted driven pulley speed R2 and the measured driven pulley speed M2 are inconsistent with each other, the abnormality detection device 9 determines that there is an abnormality in any one of the drive pulley 104, the drive belt 105, and the driven pulley 106.

[0061] Whether the predicted driven pulley speed R2 and the actually measured driven pulley speed M2 coincide with each other is determined based on whether the difference between the predicted driven pulley speed R2 and the actually measured driven pulley speed M2 is within a preset range.

[0062] Examples of abnormalities in the drive pulley 104 , the drive belt 105 , and the driven pulley 106 include abnormality in the drive pulley 104 , abnormality in the driven pulley 106 , slippage between the drive pulley 104 and the drive belt 105 , and slippage between the driven pulley 106 and the drive belt 105 .

[0063] Furthermore, the abnormality detection device 9 detects abnormalities in the drive roller 107, the interlocking rope 108, and the driven roller 109 using the measurement results of the second rotation speed measuring device 6 and the measurement results of the third rotation speed measuring device 7. Specifically, the abnormality detection device 9 detects abnormalities in the drive roller 107, the interlocking rope 108, and the driven roller 109 as follows.

[0064] The abnormality detection device 9 compares the measured driving roller rotation speed M3 and the measured driven roller rotation speed M4 to detect abnormalities in the driving roller 107 , the interlocking rope 108 , and the driven roller 109 .

[0065] Specifically, when the measured driving roller rotational speed M3 and the measured driven roller rotational speed M4 are consistent with each other, the abnormality detection device 9 determines that there is no abnormality in the driving roller 107, the interlocking rope 108, and the driven roller 109. On the other hand, when the measured driving roller rotational speed M3 and the measured driven roller rotational speed M4 are inconsistent with each other, it is determined that there is an abnormality in the driving roller 107, the interlocking rope 108, and the driven roller 109.

[0066] Whether the measured driving roller rotation speed M3 and the measured driven roller rotation speed M4 coincide with each other is determined based on whether the difference between the measured driving roller rotation speed M3 and the measured driven roller rotation speed M4 is within a preset range.

[0067] Examples of abnormalities in the driving roller 107 , the interlocking rope 108 , and the driven roller 109 include abnormalities in the driving roller 107 , abnormalities in the driven roller 109 , slippage between the driving roller 107 and the interlocking rope 108 , and slippage between the driven roller 109 and the interlocking rope 108 .

[0068] Furthermore, the abnormality detection device 9 detects abnormalities in each of the first hanger roller 117, the second hanger roller 118, the third hanger roller 119, and the fourth hanger roller 120 using the measurement results of the third rotation speed measuring device 7 and the measurement results of the fourth rotation speed measuring device 8. Specifically, the abnormality detection device 9 detects abnormalities in each of the first hanger roller 117, the second hanger roller 118, the third hanger roller 119, and the fourth hanger roller 120 as follows.

[0069] The abnormality detection device 9 predicts the rotational speeds of each of the first hanger roller 117, the second hanger roller 118, the third hanger roller 119, and the fourth hanger roller 120 based on the measured driven roller rotational speed M4. In the elevator door system of Embodiment 1, the predicted rotational speeds of each of the first hanger roller 117, the second hanger roller 118, the third hanger roller 119, and the fourth hanger roller 120 are identical. Therefore, the predicted rotational speeds of each of the first hanger roller 117, the second hanger roller 118, the third hanger roller 119, and the fourth hanger roller 120 are referred to as the predicted hanger roller rotational speeds R3.

[0070] Alternatively, the abnormality detection device 9 may detect abnormalities in each of the first hanger roller 117, the second hanger roller 118, the third hanger roller 119, and the fourth hanger roller 120 using the measurement results of the second rotation speed measuring device 6 and the measurement results of the fourth rotation speed measuring device 8. In this case, the abnormality detection device 9 predicts the rotation speeds of each of the first hanger roller 117, the second hanger roller 118, the third hanger roller 119, and the fourth hanger roller 120 based on the measured drive roller rotation speed M3.

[0071] The abnormality detection device 9 compares the measured first hanger roller rotational speed M5 with the predicted hanger roller rotational speed R3 to detect an abnormality in the first hanger roller 117. Furthermore, the abnormality detection device 9 compares the measured second hanger roller rotational speed M6 with the predicted hanger roller rotational speed R3 to detect an abnormality in the second hanger roller 118. Furthermore, the abnormality detection device 9 compares the measured third hanger roller rotational speed M7 with the predicted hanger roller rotational speed R3 to detect an abnormality in the third hanger roller 119. Furthermore, the abnormality detection device 9 compares the measured fourth hanger roller rotational speed M8 with the predicted hanger roller rotational speed R3 to detect an abnormality in the fourth hanger roller 120.

[0072] Moreover, the abnormality detection device 9 detects abnormality of the door rail 110 using the measurement result of the 4th rotation speed measuring device 8. Specifically, the abnormality detection device 9 detects abnormality of the door rail 110 as follows.

[0073] The movement paths of each of the first hanger roller 117 , the second hanger roller 118 , the third hanger roller 119 and the fourth hanger roller 120 are composed of an acceleration process, a constant speed process and a deceleration process.

[0074] The abnormality detection device 9 calculates the change in the rotation speed of the first hanger roller 117 per unit time during the acceleration process of the first hanger roller 117 based on the measured first hanger roller rotation speed M5. The calculated change in the rotation speed of the first hanger roller 117 per unit time is defined as the first hanger roller rotation speed change R4 during the acceleration process. The abnormality detection device 9 uses the first hanger roller rotation speed change R4 during the acceleration process to detect abnormalities in the door rail 110 on which the first hanger roller 117 rolls during the acceleration process of the first hanger roller 117.

[0075] Specifically, when there is no disturbance in the first hanger roller rotation speed variation R4 during the acceleration process, the abnormality detection device 9 determines that there is no abnormality in the door rail 110 on which the first hanger roller 117 rolls during the acceleration process of the first hanger roller 117. On the other hand, when there is a disturbance in the first hanger roller rotation speed variation R4 during the acceleration process, the abnormality detection device 9 determines that there is an abnormality in the door rail 110 on which the first hanger roller 117 rolls during the acceleration process of the first hanger roller 117.

[0076] Based on whether the first hanger roller rotation speed variation R4 during the acceleration process is within a preset range, it is determined whether there is a disturbance in the first hanger roller rotation speed variation R4 during the acceleration process.

[0077] Furthermore, the abnormality detection device 9 uses the measured first hanger roller rotation speed M5 to detect abnormality of the door rail 110 on which the first hanger roller 117 rolls while the first hanger roller 117 is moving at a constant speed.

[0078] Specifically, when the measured first hanger roller rotation speed M5 does not fluctuate, the abnormality detection device 9 determines that there is no abnormality in the door rail 110 on which the first hanger roller 117 rolls while the first hanger roller 117 is running at a constant speed. On the other hand, when the measured first hanger roller rotation speed M5 fluctuates, the abnormality detection device 9 determines that there is an abnormality in the door rail 110 on which the first hanger roller 117 rolls while the first hanger roller 117 is running at a constant speed.

[0079] Whether or not the actually measured first hanger roller rotation speed M5 is disturbed is determined based on whether or not the actually measured first hanger roller rotation speed M5 is within a preset range.

[0080] Furthermore, the abnormality detection device 9 calculates the amount of change in the rotational speed of the first hanger roller 117 per unit time during the deceleration process of the first hanger roller 117 based on the measured first hanger roller rotational speed M5. The calculated amount of change in the rotational speed of the first hanger roller 117 per unit time is defined as the amount of change in the first hanger roller rotational speed during the deceleration process R5. The abnormality detection device 9 uses the amount of change in the first hanger roller rotational speed during the deceleration process R5 to detect an abnormality in the door rail 110 on which the first hanger roller 117 rolls during the deceleration process of the first hanger roller 117.

[0081] Specifically, when there is no disturbance in the first hanger roller rotation speed variation R5 during the deceleration process, the abnormality detection device 9 determines that there is no abnormality in the door rail 110 on which the first hanger roller 117 rolls during the deceleration process of the first hanger roller 117. On the other hand, when there is a disturbance in the first hanger roller rotation speed variation R5 during the deceleration process, the abnormality detection device 9 determines that there is an abnormality in the door rail 110 on which the first hanger roller 117 rolls during the deceleration process of the first hanger roller 117.

[0082] Based on whether the change amount R5 of the rotation speed of the first hanger roller during the deceleration process is within a preset range, it is determined whether there is a disturbance in the change amount R5 of the rotation speed of the first hanger roller during the deceleration process.

[0083] Furthermore, the abnormality detection device 9 calculates the amount of change in the rotational speed of the second hanger roller 118 per unit time during the acceleration process of the second hanger roller 118 based on the measured second hanger roller rotational speed M6. The calculated amount of change in the rotational speed of the second hanger roller 118 per unit time is defined as the amount of change in the second hanger roller rotational speed during the acceleration process R6. The abnormality detection device 9 uses the amount of change in the second hanger roller rotational speed during the acceleration process R6 to detect an abnormality in the door rail 110 on which the second hanger roller 118 rolls during the acceleration process of the second hanger roller 118.

[0084] Specifically, when there is no disturbance in the second hanger roller rotation speed variation R6 during the acceleration process, the abnormality detection device 9 determines that there is no abnormality in the door rail 110 on which the second hanger roller 118 rolls during the acceleration process of the second hanger roller 118. On the other hand, when there is a disturbance in the second hanger roller rotation speed variation R6 during the acceleration process, the abnormality detection device 9 determines that there is an abnormality in the door rail 110 on which the second hanger roller 118 rolls during the acceleration process of the second hanger roller 118.

[0085] Based on whether the second hanger roller rotation speed variation R6 during the acceleration process is within a preset range, it is determined whether there is a disturbance in the second hanger roller rotation speed variation R6 during the acceleration process.

[0086] Furthermore, the abnormality detection device 9 uses the actually measured second hanger roller rotation speed M6 to detect abnormality of the door rail 110 on which the second hanger roller 118 rolls while the second hanger roller 118 is moving at a constant speed.

[0087] Specifically, when the measured second hanger roller rotation speed M6 does not fluctuate, the abnormality detection device 9 determines that there is no abnormality in the door rail 110 on which the second hanger roller 118 rolls while the second hanger roller 118 is running at a constant speed. On the other hand, when the measured second hanger roller rotation speed M6 fluctuates, the abnormality detection device 9 determines that there is an abnormality in the door rail 110 on which the second hanger roller 118 rolls while the second hanger roller 118 is running at a constant speed.

[0088] Whether or not the actually measured second hanger roller rotation speed M6 is disturbed is determined based on whether or not the actually measured second hanger roller rotation speed M6 is within a preset range.

[0089] Furthermore, the abnormality detection device 9 calculates the amount of change in the rotational speed of the second hanger roller 118 per unit time during the deceleration process of the second hanger roller 118 based on the measured second hanger roller rotational speed M6. The calculated amount of change in the rotational speed of the second hanger roller 118 per unit time is defined as the amount of change in the second hanger roller rotational speed during the deceleration process R7. The abnormality detection device 9 uses the amount of change in the second hanger roller rotational speed during the deceleration process R7 to detect an abnormality in the door rail 110 on which the second hanger roller 118 rolls during the deceleration process of the second hanger roller 118.

[0090] Specifically, when there is no disturbance in the second hanger roller rotation speed variation R7 during the deceleration process, the abnormality detection device 9 determines that there is no abnormality in the door rail 110 on which the second hanger roller 118 rolls during the deceleration process of the second hanger roller 118. On the other hand, when there is a disturbance in the second hanger roller rotation speed variation R7 during the deceleration process, the abnormality detection device 9 determines that there is an abnormality in the door rail 110 on which the second hanger roller 118 rolls during the deceleration process of the second hanger roller 118.

[0091] Based on whether the second hanger roller rotation speed variation R7 during the deceleration process is within a preset range, it is determined whether there is a disturbance in the second hanger roller rotation speed variation R7 during the deceleration process.

[0092] Furthermore, the abnormality detection device 9 calculates the change in the rotation speed of the third hanger roller 119 per unit time during the acceleration process of the third hanger roller 119 based on the measured third hanger roller rotation speed M7. The calculated change in the rotation speed of the third hanger roller 119 per unit time is defined as the third hanger roller rotation speed change R8 during the acceleration process. The abnormality detection device 9 uses the third hanger roller rotation speed change R8 during the acceleration process to detect abnormalities in the door rail 110 on which the third hanger roller 119 rolls during the acceleration process of the third hanger roller 119.

[0093] Specifically, when there is no disturbance in the third hanger roller rotation speed variation R8 during the acceleration process, the abnormality detection device 9 determines that there is no abnormality in the door rail 110 on which the third hanger roller 119 rolls during the acceleration process of the third hanger roller 119. On the other hand, when there is a disturbance in the third hanger roller rotation speed variation R8 during the acceleration process, the abnormality detection device 9 determines that there is an abnormality in the door rail 110 on which the third hanger roller 119 rolls during the acceleration process of the third hanger roller 119.

[0094] Based on whether the third hanger roller rotation speed variation R8 during the acceleration process is within a preset range, it is determined whether there is a disturbance in the third hanger roller rotation speed variation R8 during the acceleration process.

[0095] Furthermore, the abnormality detection device 9 uses the measured third hanger roller rotation speed M7 to detect abnormality of the door rail 110 on which the third hanger roller 119 rolls while the third hanger roller 119 is moving at a constant speed.

[0096] Specifically, when the measured third hanger roller rotation speed M7 does not fluctuate, the abnormality detection device 9 determines that there is no abnormality in the door rail 110 on which the third hanger roller 119 rolls while the third hanger roller 119 is running at a constant speed. On the other hand, when the measured third hanger roller rotation speed M7 fluctuates, the abnormality detection device 9 determines that there is an abnormality in the door rail 110 on which the third hanger roller 119 rolls while the third hanger roller 119 is running at a constant speed.

[0097] Based on whether the actually measured third hanger roller rotation speed M7 is within a preset range, it is determined whether the actually measured third hanger roller rotation speed M7 is disordered.

[0098] Furthermore, the abnormality detection device 9 calculates the change in the rotation speed of the third hanger roller 119 per unit time during the deceleration process of the third hanger roller 119 based on the measured third hanger roller rotation speed M7. The calculated change in the rotation speed of the third hanger roller 119 per unit time is defined as the change in the rotation speed of the third hanger roller 119 during the deceleration process R9. The abnormality detection device 9 uses the change in the rotation speed of the third hanger roller during the deceleration process R9 to detect abnormalities in the door rail 110 on which the third hanger roller 119 rolls during the deceleration process of the third hanger roller 119.

[0099] Specifically, when there is no disturbance in the third hanger roller rotation speed variation R9 during the deceleration process, the abnormality detection device 9 determines that there is no abnormality in the door rail 110 on which the third hanger roller 119 rolls during the deceleration process of the third hanger roller 119. On the other hand, when there is a disturbance in the third hanger roller rotation speed variation R9 during the deceleration process, the abnormality detection device 9 determines that there is an abnormality in the door rail 110 on which the third hanger roller 119 rolls during the deceleration process of the third hanger roller 119.

[0100] Based on whether the change in the rotational speed R9 of the third hanger roller during the deceleration process is within a preset range, it is determined whether there is a disturbance in the change in the rotational speed R9 of the third hanger roller during the deceleration process.

[0101] Furthermore, the abnormality detection device 9 calculates the change in the rotation speed of the fourth hanger roller 120 per unit time during the acceleration process of the fourth hanger roller 120 based on the measured fourth hanger roller rotation speed M8. The calculated change in the rotation speed of the fourth hanger roller 120 per unit time is defined as the fourth hanger roller rotation speed change R10 during the acceleration process. The abnormality detection device 9 uses the fourth hanger roller rotation speed change R10 during the acceleration process to detect abnormalities in the door rail 110 on which the fourth hanger roller 120 rolls during the acceleration process of the fourth hanger roller 120.

[0102] Specifically, when there is no disturbance in the fourth hanger roller rotation speed variation R10 during the acceleration process, the abnormality detection device 9 determines that there is no abnormality in the door rail 110 on which the fourth hanger roller 120 rolls during the acceleration process of the fourth hanger roller 120. On the other hand, when there is a disturbance in the fourth hanger roller rotation speed variation R10 during the acceleration process, the abnormality detection device 9 determines that there is an abnormality in the door rail 110 on which the fourth hanger roller 120 rolls during the acceleration process of the fourth hanger roller 120.

[0103] Based on whether the fourth hanger roller rotation speed variation R10 during the acceleration process is within a preset range, it is determined whether there is a disturbance in the fourth hanger roller rotation speed variation R10 during the acceleration process.

[0104] Furthermore, the abnormality detection device 9 uses the measured fourth hanger roller rotation speed M8 to detect abnormality of the door rail 110 on which the fourth hanger roller 120 rolls while the fourth hanger roller 120 is moving at a constant speed.

[0105] Specifically, when the measured fourth hanger roller rotation speed M8 does not fluctuate, the abnormality detection device 9 determines that there is no abnormality in the door rail 110 on which the fourth hanger roller 120 rolls while the fourth hanger roller 120 is running at a constant speed. On the other hand, when the measured fourth hanger roller rotation speed M8 fluctuates, the abnormality detection device 9 determines that there is an abnormality in the door rail 110 on which the fourth hanger roller 120 rolls while the fourth hanger roller 120 is running at a constant speed.

[0106] Based on whether the actually measured fourth hanger roller rotation speed M8 is within a preset range, it is determined whether the actually measured fourth hanger roller rotation speed M8 is disordered.

[0107] Furthermore, the abnormality detection device 9 calculates the amount of change in the rotational speed of the fourth hanger roller 120 per unit time during the deceleration process of the fourth hanger roller 120 based on the measured fourth hanger roller rotational speed M8. The calculated amount of change in the rotational speed of the fourth hanger roller 120 per unit time is defined as the amount of change in the rotational speed of the fourth hanger roller 120 during the deceleration process R11. The abnormality detection device 9 uses the amount of change in the rotational speed of the fourth hanger roller during the deceleration process R11 to detect an abnormality in the door rail 110 on which the fourth hanger roller 120 rolls during the deceleration process of the fourth hanger roller 120.

[0108] Specifically, when there is no disturbance in the fourth hanger roller rotation speed variation R11 during the deceleration process, the abnormality detection device 9 determines that there is no abnormality in the door rail 110 on which the fourth hanger roller 120 rolls during the deceleration process of the fourth hanger roller 120. On the other hand, when there is a disturbance in the fourth hanger roller rotation speed variation R11 during the deceleration process, the abnormality detection device 9 determines that there is an abnormality in the door rail 110 on which the fourth hanger roller 120 rolls during the deceleration process of the fourth hanger roller 120.

[0109] Based on whether the change in the rotational speed R11 of the fourth hanger roller during the deceleration process is within a preset range, it is determined whether there is a disturbance in the change in the rotational speed R11 of the fourth hanger roller during the deceleration process.

[0110] The abnormality detection device 9 detects whether the first hanger roller 117, the second hanger roller 118, the third hanger roller 119, and the fourth hanger roller 120 need to be replaced due to wear, using the measurement results of the fourth rotation speed measuring device 8. Specifically, the abnormality detection device 9 detects whether the first hanger roller 117, the second hanger roller 118, the third hanger roller 119, and the fourth hanger roller 120 need to be replaced due to wear, as follows.

[0111] A reference hanger roller wear rotation speed R12 is set in advance for the abnormality detection device 9. The reference hanger roller wear rotation speed R12 is a reference value used to determine whether the first hanger roller 117, the second hanger roller 118, the third hanger roller 119, and the fourth hanger roller 120 need to be replaced due to wear.

[0112] The abnormality detection device 9 compares the measured first hanger roller rotation speed M5 with the reference hanger roller wear rotation speed R12 to detect that the first hanger roller 117 needs to be replaced due to wear.

[0113] Specifically, when the measured first hanger roller rotational speed M5 exceeds the reference hanger roller wear rotational speed R12, the abnormality detection device 9 determines that the first hanger roller 117 needs to be replaced due to wear. On the other hand, when the measured first hanger roller rotational speed M5 does not exceed the reference hanger roller wear rotational speed R12, the abnormality detection device 9 determines that the first hanger roller 117 does not need to be replaced due to wear.

[0114] The abnormality detection device 9 compares the measured second hanger roller rotation speed M6 with the reference hanger roller wear rotation speed R12 to detect that the second hanger roller 118 needs to be replaced due to wear.

[0115] Specifically, when the measured second hanger roller rotational speed M6 exceeds the reference hanger roller wear rotational speed R12, the abnormality detection device 9 determines that the second hanger roller 118 needs to be replaced due to wear. On the other hand, when the measured second hanger roller rotational speed M6 does not exceed the reference hanger roller wear rotational speed R12, the abnormality detection device 9 determines that the second hanger roller 118 does not need to be replaced due to wear.

[0116] The abnormality detection device 9 compares the measured third hanger roller rotation speed M7 with the reference hanger roller wear rotation speed R12 to detect that the third hanger roller 119 needs to be replaced due to wear.

[0117] Specifically, when the measured third hanger roller rotational speed M7 exceeds the reference hanger roller wear rotational speed R12, the abnormality detection device 9 determines that the third hanger roller 119 needs to be replaced due to wear. On the other hand, when the measured third hanger roller rotational speed M7 does not exceed the reference hanger roller wear rotational speed R12, the abnormality detection device 9 determines that the third hanger roller 119 does not need to be replaced due to wear.

[0118] The abnormality detection device 9 compares the measured fourth hanger roller rotation speed M8 with the reference hanger roller wear rotation speed R12 to detect that the fourth hanger roller 120 needs to be replaced due to wear.

[0119] Specifically, when the measured fourth hanger roller rotational speed M8 exceeds the reference hanger roller wear rotational speed R12, the abnormality detection device 9 determines that the fourth hanger roller 120 needs to be replaced due to wear. On the other hand, when the measured fourth hanger roller rotational speed M8 does not exceed the reference hanger roller wear rotational speed R12, the abnormality detection device 9 determines that the fourth hanger roller 120 does not need to be replaced due to wear.

[0120] When the abnormality detection device 9 detects an abnormality in the drive motor 101, the abnormality detection device 9 outputs a signal indicating that the abnormality has occurred in the drive motor 101. The signal indicating that the abnormality has occurred in the drive motor 101 is input from the abnormality detection device 9 to the remote monitoring device 3 via the elevator control panel 2. When the signal indicating that the abnormality has occurred in the drive motor 101 is input to the remote monitoring device 3, the remote monitoring device 3 reports the abnormality in the drive motor 101 to the information center 4.

[0121] When the abnormality detection device 9 detects an abnormality in the drive pulley 104, the drive belt 105, or the driven pulley 106, the abnormality detection device 9 outputs a signal indicating the abnormality in the drive pulley 104, the drive belt 105, or the driven pulley 106. The signal indicating the abnormality in the drive pulley 104, the drive belt 105, or the driven pulley 106 is input from the abnormality detection device 9 to the remote monitoring device 3 via the elevator control panel 2. When the signal indicating the abnormality in the drive pulley 104, the drive belt 105, or the driven pulley 106 is input to the remote monitoring device 3, the remote monitoring device 3 reports the abnormality in the drive pulley 104, the drive belt 105, or the driven pulley 106 to the information center 4.

[0122] When the abnormality detection device 9 detects an abnormality in the drive roller 107, the interlocking rope 108, or the driven roller 109, the abnormality detection device 9 outputs a signal indicating that an abnormality has occurred in the drive roller 107, the interlocking rope 108, or the driven roller 109. The signal indicating an abnormality has occurred in the drive roller 107, the interlocking rope 108, or the driven roller 109 is input from the abnormality detection device 9 to the remote monitoring device 3 via the elevator control panel 2. When the signal indicating an abnormality has occurred in the drive roller 107, the interlocking rope 108, or the driven roller 109 is input to the remote monitoring device 3, the remote monitoring device 3 reports the abnormality in the drive roller 107, the interlocking rope 108, or the driven roller 109 to the information center 4.

[0123] When the abnormality detection device 9 detects an abnormality in the first hanger roller 117, the abnormality detection device 9 outputs a signal indicating that an abnormality has occurred in the first hanger roller 117. The signal indicating that an abnormality has occurred in the first hanger roller 117 is input from the abnormality detection device 9 to the remote monitoring device 3 via the elevator control panel 2. When the signal indicating that an abnormality has occurred in the first hanger roller 117 is input to the remote monitoring device 3, the remote monitoring device 3 reports the abnormality in the first hanger roller 117 to the information center 4.

[0124] When the abnormality detection device 9 detects an abnormality in the second hanger roller 118, the abnormality detection device 9 outputs a signal indicating that an abnormality has occurred in the second hanger roller 118. The signal indicating that an abnormality has occurred in the second hanger roller 118 is input from the abnormality detection device 9 to the remote monitoring device 3 via the elevator control panel 2. When the signal indicating that an abnormality has occurred in the second hanger roller 118 is input to the remote monitoring device 3, the remote monitoring device 3 reports the abnormality in the second hanger roller 118 to the information center 4.

[0125] When the abnormality detection device 9 detects an abnormality in the third hanger roller 119, the abnormality detection device 9 outputs a signal indicating that an abnormality has occurred in the third hanger roller 119. The signal indicating that an abnormality has occurred in the third hanger roller 119 is input from the abnormality detection device 9 to the remote monitoring device 3 via the elevator control panel 2. When the signal indicating that an abnormality has occurred in the third hanger roller 119 is input to the remote monitoring device 3, the remote monitoring device 3 reports the abnormality in the third hanger roller 119 to the information center 4.

[0126] When the abnormality detection device 9 detects an abnormality in the fourth hanger roller 120, the abnormality detection device 9 outputs a signal indicating that an abnormality has occurred in the fourth hanger roller 120. The signal indicating that an abnormality has occurred in the fourth hanger roller 120 is input from the abnormality detection device 9 to the remote monitoring device 3 via the elevator control panel 2. When the signal indicating that an abnormality has occurred in the fourth hanger roller 120 is input to the remote monitoring device 3, the remote monitoring device 3 reports the abnormality in the fourth hanger roller 120 to the information center 4.

[0127] When the abnormality detection device 9 detects an abnormality in the door track 110, the abnormality detection device 9 outputs a signal indicating the abnormality in the door track 110. The signal indicating the abnormality in the door track 110 is input from the abnormality detection device 9 to the remote monitoring device 3 via the elevator control panel 2. When the signal indicating the abnormality in the door track 110 is input to the remote monitoring device 3, the remote monitoring device 3 reports the abnormality in the door track 110 to the information center 4.

[0128] When the abnormality detection device 9 detects that the first hanger roller 117 needs to be replaced due to wear, the abnormality detection device 9 outputs a signal indicating that the first hanger roller 117 needs to be replaced due to wear. The signal indicating that the first hanger roller 117 needs to be replaced due to wear is input from the abnormality detection device 9 to the remote monitoring device 3 via the elevator control panel 2. When the signal indicating that the first hanger roller 117 needs to be replaced due to wear is input to the remote monitoring device 3, the remote monitoring device 3 reports to the information center 4 that the first hanger roller 117 needs to be replaced due to wear.

[0129] When the abnormality detection device 9 detects that the second hanger roller 118 needs to be replaced due to wear, the abnormality detection device 9 outputs a signal indicating that the second hanger roller 118 needs to be replaced due to wear. The signal indicating that the second hanger roller 118 needs to be replaced due to wear is input from the abnormality detection device 9 to the remote monitoring device 3 via the elevator control panel 2. When the signal indicating that the second hanger roller 118 needs to be replaced due to wear is input to the remote monitoring device 3, the remote monitoring device 3 reports to the information center 4 that the second hanger roller 118 needs to be replaced due to wear.

[0130] When the abnormality detection device 9 detects that the third hanger roller 119 needs to be replaced due to wear, the abnormality detection device 9 outputs a signal indicating that the third hanger roller 119 needs to be replaced due to wear. The signal indicating that the third hanger roller 119 needs to be replaced due to wear is input from the abnormality detection device 9 to the remote monitoring device 3 via the elevator control panel 2. When the signal indicating that the third hanger roller 119 needs to be replaced due to wear is input to the remote monitoring device 3, the remote monitoring device 3 reports to the information center 4 that the third hanger roller 119 needs to be replaced due to wear.

[0131] When the abnormality detection device 9 detects that the fourth hanger roller 120 needs to be replaced due to wear, the abnormality detection device 9 outputs a signal indicating that the fourth hanger roller 120 needs to be replaced due to wear. The signal indicating that the fourth hanger roller 120 needs to be replaced due to wear is input from the abnormality detection device 9 to the remote monitoring device 3 via the elevator control panel 2. When the signal indicating that the fourth hanger roller 120 needs to be replaced due to wear is input to the remote monitoring device 3, the remote monitoring device 3 reports to the information center 4 that the fourth hanger roller 120 needs to be replaced due to wear.

[0132] Next, a description will be given of the processing of the elevator door system according to Embodiment 1. First, a description will be given of the processing of the elevator door system when the door is open. Figure 4 This is a flowchart showing the door opening processing in the elevator door system of Embodiment 1. The door opening processing in the elevator door system of Embodiment 1 uses the results measured by the first rotation speed measuring device 5, the second rotation speed measuring device 6, the third rotation speed measuring device 7, and the fourth rotation speed measuring device 8 when the door is open.

[0133] First, in step S1 , a drive motor abnormality determination step is performed. Figure 5 It shows Figure 4 In the drive motor abnormality determination step, first, in step S101 , the abnormality detection device 9 determines whether the measured drive pulley rotation speed M1 and the reference drive pulley rotation speed R1 coincide with each other.

[0134] When the abnormality detection device 9 determines that the measured drive pulley rotation speed M1 and the reference drive pulley rotation speed R1 coincide with each other in step S101 , the drive motor abnormality determination step ends.

[0135] On the other hand, when the abnormality detection device 9 determines in step S101 that the measured drive pulley rotation speed M1 and the reference drive pulley rotation speed R1 do not coincide with each other, the process of the drive motor abnormality determination step proceeds to step S102 .

[0136] In step S102, the abnormality detection device 9 determines that an abnormality exists in the drive motor 101. A signal indicating the abnormality exists in the drive motor 101 is then input from the abnormality detection device 9 to the remote monitoring device 3 via the elevator control panel 2. The process of the drive motor abnormality determination step then proceeds to step S103.

[0137] In step S103, the remote monitoring device 3 reports the abnormality of the drive motor 101 to the information center 4. Then, the drive motor abnormality determination step ends.

[0138] After the drive motor abnormality determination step is completed, the elevator door system proceeds to step S2. In step S2, a drive pulley / drive belt / driven pulley abnormality determination step is performed. Figure 6 It shows Figure 4 Flowchart of the drive pulley / drive belt / driven pulley abnormality determination step. In the drive pulley / drive belt / driven pulley abnormality determination step, first, in step S201, the abnormality detection device 9 determines whether the measured driven pulley speed M2 and the predicted driven pulley speed R2 are consistent with each other.

[0139] When the abnormality detection device 9 determines in step S201 that the measured driven pulley rotation speed M2 and the predicted driven pulley rotation speed R2 coincide with each other, the drive pulley / drive belt / driven pulley abnormality determination step ends.

[0140] On the other hand, when the abnormality detection device 9 determines in step S201 that the measured driven pulley rotation speed M2 and the predicted driven pulley rotation speed R2 do not coincide with each other, the process of the drive pulley / drive belt / driven pulley abnormality determination step proceeds to step S202.

[0141] In step S202, the abnormality detection device 9 determines that an abnormality exists in the drive pulley 104, the drive belt 105, and the driven pulley 106. A signal indicating an abnormality exists in the drive pulley 104, the drive belt 105, and the driven pulley 106 is then input from the abnormality detection device 9 to the remote monitoring device 3 via the elevator control panel 2. The process of the drive pulley / drive belt / driven pulley abnormality determination step then proceeds to step S203.

[0142] In step S203, the remote monitoring device 3 reports the abnormality of the drive pulley 104, the drive belt 105, and the driven pulley 106 to the information center 4. Then, the drive pulley / drive belt / driven pulley abnormality determination step ends.

[0143] After the drive pulley / drive belt / driven pulley abnormality determination step is completed, the elevator door system proceeds to step S3. In step S3, the drive roller / interlocking rope / driven roller abnormality determination step is performed. Figure 7 It shows Figure 4 Flowchart of the driving roller / interlocking rope / driven roller abnormality determination step. In the driving roller / interlocking rope / driven roller abnormality determination step, first, in step S301, the abnormality detection device 9 determines whether the measured driving roller rotation speed M3 and the measured driven roller rotation speed M4 are consistent with each other.

[0144] When the abnormality detection device 9 determines in step S301 that the measured driving roller rotation speed M3 and the measured driven roller rotation speed M4 coincide with each other, the driving roller / interlocking rope / driven roller abnormality determination step ends.

[0145] On the other hand, when the abnormality detection device 9 determines in step S301 that the measured driving roller rotation speed M3 and the measured driven roller rotation speed M4 do not coincide with each other, the process of the driving roller / interlocking rope / driven roller abnormality determination step proceeds to step S302.

[0146] In step S302, the abnormality detection device 9 determines that an abnormality exists in the drive roller 107, interlocking rope 108, and driven roller 109. A signal indicating an abnormality exists in the drive roller 107, interlocking rope 108, and driven roller 109 is then input from the abnormality detection device 9 to the remote monitoring device 3 via the elevator control panel 2. The process of the drive roller / interlocking rope / driven roller abnormality determination step then proceeds to step S303.

[0147] In step S303, the remote monitoring device 3 reports to the information center 4 that an abnormality exists in the driving roller 107, the interlocking rope 108, and the driven roller 109. Then, the driving roller / interlocking rope / driven roller abnormality determination step ends.

[0148] After the drive roller / interlocking rope / driven roller abnormality determination step is completed, the elevator door system proceeds to step S4. In step S4, a hanger roller abnormality determination step is performed. Figure 8 It shows Figure 4 In the hanger roller abnormality determination step, first, in step S401, the abnormality detection device 9 determines whether the measured first hanger roller rotation speed M5 and the predicted hanger roller rotation speed R3 are consistent with each other.

[0149] When the abnormality detection device 9 determines in step S401 that the actually measured first hanger roller rotation speed M5 and the predicted hanger roller rotation speed R3 coincide with each other, the process of the hanger roller abnormality determination step proceeds to step S404 .

[0150] On the other hand, when the abnormality detection device 9 determines in step S401 that the measured first hanger roller rotation speed M5 and the predicted hanger roller rotation speed R3 do not coincide with each other, the process of the hanger roller abnormality determination step proceeds to step S402.

[0151] In step S402, the abnormality detection device 9 determines that an abnormality exists in the first hanger roller 117. A signal indicating the abnormality exists in the first hanger roller 117 is then input from the abnormality detection device 9 to the remote monitoring device 3 via the elevator control panel 2. The process of the hanger roller abnormality determination step then proceeds to step S403.

[0152] In step S403, the remote monitoring device 3 reports the abnormality of the first hanger roller 117 to the information center 4. Then, the process of the hanger roller abnormality determination step proceeds to step S404.

[0153] In step S404 , the abnormality detection device 9 determines whether the actually measured second hanger roller rotation speed M6 and the predicted hanger roller rotation speed R3 coincide with each other.

[0154] When the abnormality detection device 9 determines in step S404 that the actually measured second hanger roller rotation speed M6 and the predicted hanger roller rotation speed R3 coincide with each other, the process of the hanger roller abnormality determination step proceeds to step S407 .

[0155] On the other hand, when the abnormality detection device 9 determines in step S404 that the measured second hanger roller rotation speed M6 and the predicted hanger roller rotation speed R3 do not coincide with each other, the process of the hanger roller abnormality determination step proceeds to step S405.

[0156] In step S405, the abnormality detection device 9 determines that an abnormality exists in the second hanger roller 118. A signal indicating an abnormality exists in the second hanger roller 118 is then input from the abnormality detection device 9 to the remote monitoring device 3 via the elevator control panel 2. The hanger roller abnormality determination step then proceeds to step S406.

[0157] In step S406, the remote monitoring device 3 reports the abnormality of the second hanger roller 118 to the information center 4. Then, the process of the hanger roller abnormality determination step proceeds to step S407.

[0158] In step S407 , the abnormality detection device 9 determines whether the actually measured third hanger roller rotation speed M7 and the predicted hanger roller rotation speed R3 coincide with each other.

[0159] When the abnormality detection device 9 determines in step S407 that the actually measured third hanger roller rotation speed M7 and the predicted hanger roller rotation speed R3 coincide with each other, the process of the hanger roller abnormality determination step proceeds to step S410 .

[0160] On the other hand, when the abnormality detection device 9 determines in step S407 that the measured third hanger roller rotation speed M7 and the predicted hanger roller rotation speed R3 do not coincide with each other, the process of the hanger roller abnormality determination step proceeds to step S408.

[0161] In step S408, the abnormality detection device 9 determines that an abnormality exists in the third hanger roller 119. A signal indicating an abnormality exists in the third hanger roller 119 is then input from the abnormality detection device 9 to the remote monitoring device 3 via the elevator control panel 2. The process of the hanger roller abnormality determination step then proceeds to step S409.

[0162] In step S409, the remote monitoring device 3 reports the abnormality of the third hanger roller 119 to the information center 4. Then, the process of the hanger roller abnormality determination step proceeds to step S410.

[0163] In step S410 , the abnormality detection device 9 determines whether the actually measured fourth hanger roller rotation speed M8 and the predicted hanger roller rotation speed R3 coincide with each other.

[0164] When the abnormality detection device 9 determines in step S410 that the actually measured fourth hanger roller rotation speed M8 and the predicted hanger roller rotation speed R3 coincide with each other, the hanger roller abnormality determination step ends.

[0165] On the other hand, when the abnormality detection device 9 determines in step S410 that the measured fourth hanger roller rotation speed M8 and the predicted hanger roller rotation speed R3 do not coincide with each other, the process of the hanger roller abnormality determination step proceeds to step S411.

[0166] In step S411, the abnormality detection device 9 determines that an abnormality exists in the fourth hanger roller 120. A signal indicating the abnormality exists in the fourth hanger roller 120 is then input from the abnormality detection device 9 to the remote monitoring device 3 via the elevator control panel 2. The process of the hanger roller abnormality determination step then proceeds to step S412.

[0167] In step S412, the remote monitoring device 3 reports the abnormality of the fourth hanger roller 120 to the information center 4. Then, the hanger roller abnormality determination step ends.

[0168] After the hanger roller abnormality determination step is completed, the elevator door device system proceeds to step S5. In step S5, the hanger roller acceleration process hanger rail abnormality determination step is performed. Figure 9 It shows Figure 4 Flowchart of the hanger roller acceleration process hanger rail abnormality determination step. In the hanger roller acceleration process hanger rail abnormality determination step, first, in step S501, the abnormality detection device 9 determines whether there is a disturbance in the first hanger roller speed variation R4 during the acceleration process.

[0169] When the abnormality detection device 9 determines in step S501 that the first hanger roller rotation speed variation R4 during the acceleration process is not disturbed, the process of the hanger roller acceleration process hanger rail abnormality determination step proceeds to step S504.

[0170] On the other hand, when the abnormality detection device 9 determines in step S501 that there is a disturbance in the first hanger roller rotation speed variation R4 during acceleration, the process of the hanger roller acceleration process hanger rail abnormality determination step proceeds to step S502.

[0171] In step S502, the abnormality detection device 9 determines that an abnormality exists in the door rail 110 on which the first hanger roller 117 rolls during the acceleration process of the first hanger roller 117. A signal indicating an abnormality exists in the door rail 110 on which the first hanger roller 117 rolls during the acceleration process of the first hanger roller 117 is then input from the abnormality detection device 9 to the remote monitoring device 3 via the elevator control panel 2. The process of determining an abnormality in the hanger rail during the hanger roller acceleration process then proceeds to step S503.

[0172] In step S503, the remote monitoring device 3 reports to the information center 4 that an abnormality has occurred in the door rail 110 on which the first hanger roller 117 rolls during the acceleration of the first hanger roller 117. Then, the process of the hanger rail abnormality determination step during the hanger roller acceleration process proceeds to step S504.

[0173] In step S504, the abnormality detection device 9 determines whether there is a disturbance in the second hanger roller rotation speed variation R6 during the acceleration process.

[0174] When the abnormality detection device 9 determines in step S504 that the second hanger roller rotation speed variation R6 during the acceleration process is not disturbed, the process of the hanger roller acceleration process hanger rail abnormality determination step proceeds to step S507.

[0175] On the other hand, when the abnormality detection device 9 determines in step S504 that there is a disturbance in the second hanger roller rotation speed variation R6 during acceleration, the process of the hanger roller acceleration process hanger rail abnormality determination step proceeds to step S505.

[0176] In step S505, the abnormality detection device 9 determines that an abnormality exists in the door rail 110 on which the second hanger roller 118 rolls during the acceleration process of the second hanger roller 118. A signal indicating an abnormality exists in the door rail 110 on which the second hanger roller 118 rolls during the acceleration process of the second hanger roller 118 is then input from the abnormality detection device 9 to the remote monitoring device 3 via the elevator control panel 2. The process of determining a hanger rail abnormality during the hanger roller acceleration process then proceeds to step S506.

[0177] In step S506, the remote monitoring device 3 reports to the information center 4 that an abnormality has occurred in the door rail 110 on which the second hanger roller 118 rolls during the acceleration of the second hanger roller 118. The process of the hanger rail abnormality determination step during the hanger roller acceleration process then proceeds to step S507.

[0178] In step S507, the abnormality detection device 9 determines whether there is a disturbance in the third hanger roller rotation speed variation R8 during the acceleration process.

[0179] When the abnormality detection device 9 determines in step S507 that the third hanger roller rotation speed variation R8 during the acceleration process is not disturbed, the process of the hanger roller acceleration process hanger rail abnormality determination step proceeds to step S510.

[0180] On the other hand, when the abnormality detection device 9 determines in step S507 that there is a disturbance in the third hanger roller rotation speed variation R8 during acceleration, the process of the hanger roller acceleration process hanger rail abnormality determination step proceeds to step S508.

[0181] In step S508, the abnormality detection device 9 determines that an abnormality exists in the door rail 110 on which the third hanger roller 119 rolls during the acceleration process of the third hanger roller 119. A signal indicating an abnormality exists in the door rail 110 on which the third hanger roller 119 rolls during the acceleration process of the third hanger roller 119 is then input from the abnormality detection device 9 to the remote monitoring device 3 via the elevator control panel 2. The process then proceeds to step S509 for determining an abnormality in the hanger roller acceleration process.

[0182] In step S509, the remote monitoring device 3 reports to the information center 4 that an abnormality has occurred in the door rail 110 on which the third hanger roller 119 rolls during the acceleration of the third hanger roller 119. The process of the hanger rail abnormality determination step during the hanger roller acceleration process then proceeds to step S510.

[0183] In step S510, the abnormality detection device 9 determines whether there is a disturbance in the fourth hanger roller rotation speed variation R10 during the acceleration process.

[0184] When the abnormality detection device 9 determines in step S510 that the fourth hanger roller rotation speed variation R10 during the acceleration process is not disturbed, the hanger roller acceleration process hanger rail abnormality determination step is completed.

[0185] On the other hand, when the abnormality detection device 9 determines in step S510 that there is a disturbance in the fourth hanger roller rotation speed variation R10 during acceleration, the process of the hanger roller acceleration process hanger rail abnormality determination step proceeds to step S511.

[0186] In step S511, the abnormality detection device 9 determines that an abnormality exists in the door rail 110 on which the fourth hanger roller 120 rolls during the acceleration process of the fourth hanger roller 120. A signal indicating an abnormality exists in the door rail 110 on which the fourth hanger roller 120 rolls during the acceleration process of the fourth hanger roller 120 is then input from the abnormality detection device 9 to the remote monitoring device 3 via the elevator control panel 2. The process of determining a hanger rail abnormality during the hanger roller acceleration process then proceeds to step S512.

[0187] In step S512, the remote monitoring device 3 reports to the information center 4 that an abnormality has occurred in the door rail 110 on which the fourth hanger roller 120 rolls during the acceleration process of the fourth hanger roller 120. Then, the hanger roller acceleration process hanger rail abnormality determination step ends.

[0188] After the hanger roller acceleration process hanger rail abnormality determination step is completed, the elevator door device system proceeds to step S6. In step S6, the hanger roller constant speed process hanger rail abnormality determination step is performed. Figure 10 It shows Figure 4 Flowchart of the hanger roller constant speed process hanger rail abnormality determination step. In the hanger roller constant speed process hanger rail abnormality determination step, first, in step S601, the abnormality detection device 9 determines whether there is a disturbance in the measured first hanger roller rotation speed M5.

[0189] When the abnormality detection device 9 determines in step S601 that the measured first hanger roller rotation speed M5 is not disturbed, the process of the hanger roller constant speed process hanger rail abnormality determination step proceeds to step S604.

[0190] On the other hand, when the abnormality detection device 9 determines in step S601 that there is a disturbance in the measured first hanger roller rotation speed M5, the process of the hanger roller constant speed process hanger rail abnormality determination step proceeds to step S602.

[0191] In step S602, the abnormality detection device 9 determines that an abnormality exists in the door rail 110 on which the first hanger roller 117 rolls during the constant speed operation of the first hanger roller 117. A signal indicating an abnormality exists in the door rail 110 on which the first hanger roller 117 rolls during the constant speed operation of the first hanger roller 117 is then input from the abnormality detection device 9 to the remote monitoring device 3 via the elevator control panel 2. The process of determining a hanger rail abnormality during the hanger roller constant speed operation then proceeds to step S603.

[0192] In step S603, the remote monitoring device 3 reports to the information center 4 that an abnormality exists in the door rail 110 on which the first hanger roller 117 rolls during the constant speed operation of the first hanger roller 117. Then, the process of the hanger rail abnormality determination step during the hanger roller constant speed operation proceeds to step S604.

[0193] In step S604 , the abnormality detection device 9 determines whether or not there is a disturbance in the actually measured second hanger roller rotation speed M6 .

[0194] When the abnormality detection device 9 determines in step S604 that the measured second hanger roller rotation speed M6 is not disturbed, the process of the hanger roller constant speed process hanger rail abnormality determination step proceeds to step S607.

[0195] On the other hand, when the abnormality detection device 9 determines in step S604 that there is a disturbance in the measured second hanger roller rotation speed M6, the process of the hanger roller constant speed process hanger rail abnormality determination step proceeds to step S605.

[0196] In step S605, the abnormality detection device 9 determines that an abnormality exists in the door rail 110 on which the second hanger roller 118 rolls during the constant speed operation of the second hanger roller 118. A signal indicating an abnormality exists in the door rail 110 on which the second hanger roller 118 rolls during the constant speed operation of the second hanger roller 118 is then input from the abnormality detection device 9 to the remote monitoring device 3 via the elevator control panel 2. The process of determining a hanger rail abnormality during the hanger roller constant speed operation then proceeds to step S606.

[0197] In step S606, the remote monitoring device 3 reports to the information center 4 that an abnormality has occurred in the door rail 110 on which the second hanger roller 118 rolls during the constant speed operation of the second hanger roller 118. The process of the hanger rail abnormality determination step during the hanger roller constant speed operation then proceeds to step S607.

[0198] In step S607 , the abnormality detection device 9 determines whether or not there is a disturbance in the actually measured third hanger roller rotation speed M7 .

[0199] When the abnormality detection device 9 determines in step S607 that the measured third hanger roller rotation speed M7 is not disturbed, the process of the hanger roller constant speed process hanger rail abnormality determination step proceeds to step S610.

[0200] On the other hand, when the abnormality detection device 9 determines in step S607 that there is a disturbance in the measured third hanger roller rotation speed M7, the process of the hanger roller constant speed process hanger rail abnormality determination step proceeds to step S608.

[0201] In step S608, the abnormality detection device 9 determines that an abnormality exists in the door rail 110 on which the third hanger roller 119 rolls during the constant speed operation of the third hanger roller 119. A signal indicating an abnormality exists in the door rail 110 on which the third hanger roller 119 rolls during the constant speed operation of the third hanger roller 119 is then input from the abnormality detection device 9 to the remote monitoring device 3 via the elevator control panel 2. The process then proceeds to step S609 for determining an abnormality in the hanger rail during the constant speed operation of the hanger roller.

[0202] In step S609, the remote monitoring device 3 reports to the information center 4 that an abnormality exists in the door rail 110 on which the third hanger roller 119 rolls during the constant speed operation of the third hanger roller 119. The process of the hanger rail abnormality determination step during the hanger roller constant speed operation then proceeds to step S610.

[0203] In step S610 , the abnormality detection device 9 determines whether or not there is a disturbance in the actually measured fourth hanger roller rotation speed M8 .

[0204] When the abnormality detection device 9 determines in step S610 that the measured fourth hanger roller rotation speed M8 is not disturbed, the hanger roller constant speed process hanger rail abnormality determination step ends.

[0205] On the other hand, when the abnormality detection device 9 determines in step S610 that there is a disturbance in the measured fourth hanger roller rotation speed M8, the process of the hanger roller constant speed process hanger rail abnormality determination step proceeds to step S611.

[0206] In step S611, the abnormality detection device 9 determines that an abnormality exists in the door rail 110 on which the fourth hanger roller 120 rolls during the constant speed operation of the fourth hanger roller 120. A signal indicating an abnormality exists in the door rail 110 on which the fourth hanger roller 120 rolls during the constant speed operation of the fourth hanger roller 120 is then input from the abnormality detection device 9 to the remote monitoring device 3 via the elevator control panel 2. The process of determining a hanger rail abnormality during the hanger roller constant speed operation then proceeds to step S612.

[0207] In step S612, the remote monitoring device 3 reports to the information center 4 that an abnormality has occurred in the door rail 110 on which the fourth hanger roller 120 rolls during the constant speed process of the fourth hanger roller 120. The hanger roller constant speed process hanger rail abnormality determination step then ends.

[0208] After the hanger roller constant speed process hanger rail abnormality determination step is completed, the elevator door device system proceeds to step S7. In step S7, the hanger roller deceleration process hanger rail abnormality determination step is performed. Figure 11 It shows Figure 4 Flowchart of the hanger roller deceleration process hanger rail abnormality determination step. In the hanger roller deceleration process hanger rail abnormality determination step, first, in step S701, the abnormality detection device 9 determines whether there is a disturbance in the first hanger roller speed change R5 during the deceleration process.

[0209] When the abnormality detection device 9 determines in step S701 that the first hanger roller rotation speed variation R5 during the deceleration process is not disturbed, the process of the hanger rail abnormality determination step during the hanger roller deceleration process proceeds to step S704.

[0210] On the other hand, when the abnormality detection device 9 determines in step S701 that there is a disturbance in the first hanger roller rotation speed variation R5 during deceleration, the process of the hanger rail abnormality determination step during hanger roller deceleration proceeds to step S702.

[0211] In step S702, the abnormality detection device 9 determines that an abnormality exists in the door rail 110 on which the first hanger roller 117 rolls during the deceleration process of the first hanger roller 117. A signal indicating an abnormality exists in the door rail 110 on which the first hanger roller 117 rolls during the deceleration process of the first hanger roller 117 is then input from the abnormality detection device 9 to the remote monitoring device 3 via the elevator control panel 2. The process then proceeds to step S703 for determining an abnormality in the hanger rail during the hanger roller deceleration process.

[0212] In step S703, the remote monitoring device 3 reports to the information center 4 that an abnormality has occurred in the door rail 110 on which the first hanger roller 117 rolls during the deceleration process of the first hanger roller 117. Then, the process of the hanger rail abnormality determination step during the hanger roller deceleration process proceeds to step S704.

[0213] In step S704, the abnormality detection device 9 determines whether there is a disturbance in the second hanger roller rotation speed variation R7 during the deceleration process.

[0214] When the abnormality detection device 9 determines in step S704 that the second hanger roller rotation speed variation R7 during the deceleration process is not disturbed, the process of the hanger rail abnormality determination step during the hanger roller deceleration process proceeds to step S707.

[0215] On the other hand, when the abnormality detection device 9 determines in step S704 that there is a disturbance in the second hanger roller rotation speed variation R7 during deceleration, the process of the hanger roller deceleration hanger rail abnormality determination step proceeds to step S705.

[0216] In step S705, the abnormality detection device 9 determines that an abnormality exists in the door rail 110 on which the second hanger roller 118 rolls during the deceleration process of the second hanger roller 118. A signal indicating an abnormality exists in the door rail 110 on which the second hanger roller 118 rolls during the deceleration process of the second hanger roller 118 is then input from the abnormality detection device 9 to the remote monitoring device 3 via the elevator control panel 2. The process then proceeds to step S706 for determining an abnormality in the hanger rail during the hanger roller deceleration process.

[0217] In step S706, the remote monitoring device 3 reports to the information center 4 that an abnormality has occurred in the door rail 110 on which the second hanger roller 118 rolls during the deceleration process of the second hanger roller 118. Then, the process of the hanger rail abnormality determination step during the hanger roller deceleration process proceeds to step S707.

[0218] In step S707, the abnormality detection device 9 determines whether there is a disturbance in the third hanger roller rotation speed variation R9 during the deceleration process.

[0219] When the abnormality detection device 9 determines in step S707 that the third hanger roller rotation speed variation R9 during the deceleration process is not disturbed, the process of the hanger rail abnormality determination step during the hanger roller deceleration process proceeds to step S710.

[0220] On the other hand, when the abnormality detection device 9 determines in step S707 that there is a disturbance in the third hanger roller rotation speed variation R9 during deceleration, the process of the hanger roller deceleration hanger rail abnormality determination step proceeds to step S708.

[0221] In step S708, the abnormality detection device 9 determines that an abnormality exists in the door rail 110 on which the third hanger roller 119 rolls during the deceleration process of the third hanger roller 119. A signal indicating an abnormality exists in the door rail 110 on which the third hanger roller 119 rolls during the deceleration process of the third hanger roller 119 is then input from the abnormality detection device 9 to the remote monitoring device 3 via the elevator control panel 2. The process then proceeds to step S709 for determining an abnormality in the hanger rail during the hanger roller deceleration process.

[0222] In step S709, the remote monitoring device 3 reports to the information center 4 that an abnormality has occurred in the door rail 110 on which the third hanger roller 119 rolls during the deceleration process of the third hanger roller 119. Then, the process of the hanger rail abnormality determination step during the hanger roller deceleration process proceeds to step S710.

[0223] In step S710, the abnormality detection device 9 determines whether there is a disturbance in the fourth hanger roller rotation speed variation R11 during the deceleration process.

[0224] When the abnormality detection device 9 determines in step S710 that the fourth hanger roller rotation speed variation R11 during the deceleration process is not disturbed, the hanger roller deceleration process hanger rail abnormality determination step is completed.

[0225] On the other hand, when the abnormality detection device 9 determines in step S710 that there is a disturbance in the fourth hanger roller rotation speed variation R11 during deceleration, the process of the hanger roller deceleration hanger rail abnormality determination step proceeds to step S711.

[0226] In step S711, the abnormality detection device 9 determines that an abnormality exists in the door rail 110 on which the fourth hanger roller 120 rolls during the deceleration process of the fourth hanger roller 120. A signal indicating an abnormality exists in the door rail 110 on which the fourth hanger roller 120 rolls during the deceleration process of the fourth hanger roller 120 is then input from the abnormality detection device 9 to the remote monitoring device 3 via the elevator control panel 2. The process then proceeds to step S712 for determining a hanger rail abnormality during the hanger roller deceleration process.

[0227] In step S712, the remote monitoring device 3 reports to the information center 4 that an abnormality has occurred in the door rail 110 on which the fourth hanger roller 120 rolls during the deceleration process of the fourth hanger roller 120. The hanger roller deceleration process hanger rail abnormality determination step then ends.

[0228] After the hanger roller deceleration hanger rail abnormality determination step is completed, the elevator door device system proceeds to step S8. In step S8, the hanger roller wear replacement determination step is performed. Figure 12 It shows Figure 4 In the hanger roller wear replacement determination step, first, in step S801, the abnormality detection device 9 determines whether the measured first hanger roller rotation speed M5 exceeds the reference hanger roller wear rotation speed R12.

[0229] When the abnormality detection device 9 determines in step S801 that the actually measured first hanger roller rotation speed M5 does not exceed the reference hanger roller wear rotation speed R12, the process of the hanger roller wear replacement determination step proceeds to step S804.

[0230] On the other hand, when the abnormality detection device 9 determines in step S801 that the measured first hanger roller rotation speed M5 exceeds the reference hanger roller wear rotation speed R12, the process of the hanger roller wear replacement determination step proceeds to step S802.

[0231] In step S802, the abnormality detection device 9 determines that the first hanger roller 117 needs to be replaced due to wear. A signal indicating that the first hanger roller 117 needs to be replaced due to wear is then input from the abnormality detection device 9 to the remote monitoring device 3 via the elevator control panel 2. The process of the hanger roller wear replacement determination step then proceeds to step S803.

[0232] In step S803, the remote monitoring device 3 reports to the information center 4 that the first hanger roller 117 needs to be replaced due to wear. Then, the process of the hanger roller wear replacement determination step proceeds to step S804.

[0233] In step S804 , the abnormality detection device 9 determines whether the actually measured second hanger roller rotation speed M6 exceeds the reference hanger roller wear rotation speed R12 .

[0234] When the abnormality detection device 9 determines in step S804 that the actually measured second hanger roller rotation speed M6 does not exceed the reference hanger roller wear rotation speed R12, the process of the hanger roller wear replacement determination step proceeds to step S807.

[0235] On the other hand, when the abnormality detection device 9 determines in step S804 that the measured second hanger roller rotation speed M6 exceeds the reference hanger roller wear rotation speed R12, the process of the hanger roller wear replacement determination step proceeds to step S805.

[0236] In step S805, the abnormality detection device 9 determines that the second hanger roller 118 needs to be replaced due to wear. A signal indicating that the second hanger roller 118 needs to be replaced due to wear is then input from the abnormality detection device 9 to the remote monitoring device 3 via the elevator control panel 2. The process of the hanger roller wear replacement determination step then proceeds to step S806.

[0237] In step S806, the remote monitoring device 3 reports to the information center 4 that the second hanger roller 118 needs to be replaced due to wear. Then, the process of the hanger roller wear replacement determination step proceeds to step S807.

[0238] In step S807 , the abnormality detection device 9 determines whether the actually measured third hanger roller rotation speed M7 exceeds the reference hanger roller wear rotation speed R12 .

[0239] When the abnormality detection device 9 determines in step S807 that the actually measured third hanger roller rotation speed M7 does not exceed the reference hanger roller wear rotation speed R12, the process of the hanger roller wear replacement determination step proceeds to step S810.

[0240] On the other hand, when the abnormality detection device 9 determines in step S807 that the measured third hanger roller rotation speed M7 exceeds the reference hanger roller wear rotation speed R12, the process of the hanger roller wear replacement determination step proceeds to step S808.

[0241] In step S808, the abnormality detection device 9 determines that the third hanger roller 119 needs to be replaced due to wear. A signal indicating that the third hanger roller 119 needs to be replaced due to wear is then input from the abnormality detection device 9 to the remote monitoring device 3 via the elevator control panel 2. The process of the hanger roller wear replacement determination step then proceeds to step S809.

[0242] In step S809, the remote monitoring device 3 reports to the information center 4 that the third hanger roller 119 needs to be replaced due to wear. Then, the process of the hanger roller wear replacement determination step proceeds to step S810.

[0243] In step S810 , the abnormality detection device 9 determines whether the measured fourth hanger roller rotation speed M8 exceeds the reference hanger roller wear rotation speed R12 .

[0244] When the abnormality detection device 9 determines in step S810 that the actually measured fourth hanger roller rotation speed M8 does not exceed the reference hanger roller wear rotation speed R12, the hanger roller wear replacement determination step ends.

[0245] On the other hand, when the abnormality detection device 9 determines in step S810 that the measured fourth hanger roller rotation speed M8 exceeds the reference hanger roller wear rotation speed R12, the process of the hanger roller wear replacement determination step proceeds to step S811.

[0246] In step S811, the abnormality detection device 9 determines that the fourth hanger roller 120 needs to be replaced due to wear. A signal indicating that the fourth hanger roller 120 needs to be replaced due to wear is then input from the abnormality detection device 9 to the remote monitoring device 3 via the elevator control panel 2. The process of the hanger roller wear replacement determination step then proceeds to step S812.

[0247] In step S812, the remote monitoring device 3 reports to the information center 4 that the fourth hanger roller 120 needs to be replaced due to wear. Then, the hanger roller wear replacement determination step ends.

[0248] The hanger roller wear replacement determination step is completed, thereby completing the door opening processing in the elevator door device system.

[0249] The door closing process in the elevator door system uses the results of door closing measurements by the first rotation speed measuring device 5, the second rotation speed measuring device 6, the third rotation speed measuring device 7, and the fourth rotation speed measuring device 8. The door closing process in the elevator door system is similar to the door opening process in the elevator door system, with steps S1 to S8 being performed in sequence.

[0250] As described above, the elevator door system of Embodiment 1 includes a first rotation speed measuring device 5, a second rotation speed measuring device 6, a third rotation speed measuring device 7, and an abnormality detection device 9. The first rotation speed measuring device 5 measures the rotation speed of the drive pulley 104. The second rotation speed measuring device 6 measures the rotation speed of the driven pulley 106 and the rotation speed of the drive roller 107. The third rotation speed measuring device 7 measures the rotation speed of the driven roller 109. The abnormality detection device 9 uses the measurement results of the first rotation speed measuring device 5 to detect abnormalities in the drive motor 101. Furthermore, the abnormality detection device 9 uses the measurement results of the first rotation speed measuring device 5 and the second rotation speed measuring device 6 to detect abnormalities in the drive pulley 104, the drive belt 105, and the driven pulley 106. Furthermore, the abnormality detection device 9 uses the measurement results of the second rotation speed measuring device 6 and the third rotation speed measuring device 7 to detect abnormalities in the drive roller 107, the interlocking rope 108, and the driven roller 109. This configuration enables detection of abnormalities in the drive motor 101 , the drive pulley 104 , the drive belt 105 , and the driven pulley 106 , and the drive roller 107 , the interlocking rope 108 , and the driven roller 109 .

[0251] Furthermore, the abnormality detection device 9 compares the rotation speed of the drive pulley 104 measured by the first rotation speed measuring device 5 with a preset reference drive pulley rotation speed R1 to detect an abnormality in the drive motor 101. This configuration allows the detection of an abnormality in the drive motor 101 with a simple configuration.

[0252] Furthermore, the abnormality detection device 9 predicts the rotational speed of the driven pulley 106 based on the rotational speed of the drive pulley 104 measured by the first rotational speed measuring device 5. Furthermore, the abnormality detection device 9 compares the predicted rotational speed of the driven pulley 106 with the rotational speed of the driven pulley 106 measured by the second rotational speed measuring device 6 to detect abnormalities in the drive pulley 104, the drive belt 105, and the driven pulley 106. This configuration allows detection of abnormalities in the drive pulley 104, the drive belt 105, and the driven pulley 106 using a simple configuration.

[0253] Furthermore, the abnormality detection device 9 compares the rotational speed of the driving roller 107 measured by the second rotational speed measuring device 6 with the rotational speed of the driven roller 109 measured by the third rotational speed measuring device 7 to detect abnormalities in the driving roller 107, the interlocking rope 108, and the driven roller 109. This configuration allows detection of abnormalities in the driving roller 107, the interlocking rope 108, and the driven roller 109 with a simple configuration.

[0254] In addition, the elevator door device system of embodiment 1 has a fourth rotation speed measuring device 8. The fourth rotation speed measuring device 8 measures the rotation speed of the first hanger roller 117. The abnormality detection device 9 detects an abnormality of the first hanger roller 117 using the measurement result of the second rotation speed measuring device 6 or the measurement result of the third rotation speed measuring device 7 and the measurement result of the fourth rotation speed measuring device 8. According to this structure, an abnormality of the first hanger roller 117 can be detected. In addition, the fourth rotation speed measuring device 8 measures the rotation speed of the second hanger roller 118. The abnormality detection device 9 detects an abnormality of the second hanger roller 118 using the measurement result of the second rotation speed measuring device 6 or the measurement result of the third rotation speed measuring device 7 and the measurement result of the fourth rotation speed measuring device 8. According to this structure, an abnormality of the second hanger roller 118 can be detected. In addition, the fourth rotation speed measuring device 8 measures the rotation speed of the third hanger roller 119. The abnormality detection device 9 detects an abnormality of the third hanger roller 119 using the measurement results of the second rotational speed measuring device 6 or the measurement results of the third rotational speed measuring device 7 and the measurement results of the fourth rotational speed measuring device 8. According to this structure, an abnormality of the third hanger roller 119 can be detected. In addition, the fourth rotational speed measuring device 8 measures the rotational speed of the fourth hanger roller 120. The abnormality detection device 9 detects an abnormality of the fourth hanger roller 120 using the measurement results of the second rotational speed measuring device 6 or the measurement results of the third rotational speed measuring device 7 and the measurement results of the fourth rotational speed measuring device 8. According to this structure, an abnormality of the fourth hanger roller 120 can be detected.

[0255] Furthermore, the abnormality detection device 9 predicts the rotational speed of the first hanger roller 117 based on the rotational speed of the driving roller 107 measured by the second rotational speed measuring device 6 or the rotational speed of the driven roller 109 measured by the third rotational speed measuring device 7. Furthermore, the abnormality detection device 9 compares the predicted rotational speed of the first hanger roller 117 with the rotational speed of the first hanger roller 117 measured by the fourth rotational speed measuring device 8 to detect an abnormality in the first hanger roller 117. This configuration enables detection of an abnormality in the first hanger roller 117 with a simple structure. Furthermore, the abnormality detection device 9 predicts the rotational speed of the second hanger roller 118 based on the rotational speed of the driving roller 107 measured by the second rotational speed measuring device 6 or the rotational speed of the driven roller 109 measured by the third rotational speed measuring device 7. Furthermore, the abnormality detection device 9 compares the predicted rotational speed of the second hanger roller 118 with the rotational speed of the second hanger roller 118 measured by the fourth rotational speed measuring device 8 to detect an abnormality in the second hanger roller 118. According to this structure, an abnormality of the second hanger roller 118 can be detected with a simple structure. In addition, the abnormality detection device 9 predicts the rotational speed of the third hanger roller 119 based on the rotational speed of the driving roller 107 measured by the second rotational speed measuring device 6 or the rotational speed of the driven roller 109 measured by the third rotational speed measuring device 7. In addition, the abnormality detection device 9 compares the predicted rotational speed of the third hanger roller 119 with the rotational speed of the third hanger roller 119 measured by the fourth rotational speed measuring device 8 to detect an abnormality of the third hanger roller 119. According to this structure, an abnormality of the third hanger roller 119 can be detected with a simple structure. In addition, the abnormality detection device 9 predicts the rotational speed of the fourth hanger roller 120 based on the rotational speed of the driving roller 107 measured by the second rotational speed measuring device 6 or the rotational speed of the driven roller 109 measured by the third rotational speed measuring device 7. Furthermore, the abnormality detection device 9 compares the predicted rotational speed of the fourth hanger roller 120 with the rotational speed of the fourth hanger roller 120 measured by the fourth rotational speed measuring device 8 to detect an abnormality in the fourth hanger roller 120. With this configuration, an abnormality in the fourth hanger roller 120 can be detected with a simple configuration.

[0256] Furthermore, the abnormality detection device 9 calculates the amount of change in the rotational speed of the first hanger roller 117 per unit time during the acceleration or deceleration process of the first hanger roller 117 based on the measured rotational speed of the first hanger roller 117. Furthermore, the abnormality detection device 9 uses the calculated amount of change in the rotational speed of the first hanger roller 117 to detect an abnormality in the door rail 110 on which the first hanger roller 117 rolls during the acceleration or deceleration process of the first hanger roller 117. With this configuration, it is possible to detect an abnormality in the door rail 110 on which the first hanger roller 117 rolls during the acceleration or deceleration process of the first hanger roller 117. Furthermore, the abnormality detection device 9 calculates the amount of change in the rotational speed of the second hanger roller 118 per unit time during the acceleration or deceleration process of the second hanger roller 118 based on the measured rotational speed of the second hanger roller 118. Furthermore, the abnormality detection device 9 uses the calculated change in the rotational speed of the second hanger roller 118 to detect an abnormality in the door rail 110 that is rolled by the second hanger roller 118 during the acceleration or deceleration of the second hanger roller 118. With this configuration, an abnormality in the door rail 110 that is rolled by the second hanger roller 118 during the acceleration or deceleration of the second hanger roller 118 can be detected. Furthermore, based on the measured rotational speed of the third hanger roller 119, the abnormality detection device 9 calculates the change in the rotational speed of the third hanger roller 119 per unit time during the acceleration or deceleration of the third hanger roller 119. Furthermore, the abnormality detection device 9 uses the calculated change in the rotational speed of the third hanger roller 119 to detect an abnormality in the door rail 110 that is rolled by the third hanger roller 119 during the acceleration or deceleration of the third hanger roller 119. With this configuration, an abnormality in the door rail 110 that is rolled by the third hanger roller 119 can be detected during the acceleration or deceleration of the third hanger roller 119. Furthermore, the abnormality detection device 9 calculates the amount of change in the rotational speed of the fourth hanger roller 120 per unit time during the acceleration or deceleration process of the fourth hanger roller 120 based on the measured rotational speed of the fourth hanger roller 120. Furthermore, the abnormality detection device 9 uses the calculated amount of change in the rotational speed of the fourth hanger roller 120 to detect an abnormality in the door rail 110 on which the fourth hanger roller 120 rolls during the acceleration or deceleration process of the fourth hanger roller 120. With this configuration, it is possible to detect an abnormality in the door rail 110 on which the fourth hanger roller 120 rolls during the acceleration or deceleration process of the fourth hanger roller 120.

[0257] Furthermore, the abnormality detection device 9 uses the measured rotational speed of the first hanger roller 117 to detect an abnormality in the door rail 110 on which the first hanger roller 117 rolls while the first hanger roller 117 is running at a constant speed. With this configuration, it is possible to detect an abnormality in the door rail 110 on which the first hanger roller 117 rolls while the first hanger roller 117 is running at a constant speed. Furthermore, the abnormality detection device 9 uses the measured rotational speed of the second hanger roller 118 to detect an abnormality in the door rail 110 on which the second hanger roller 118 rolls while the second hanger roller 118 is running at a constant speed. With this configuration, it is possible to detect an abnormality in the door rail 110 on which the second hanger roller 118 rolls while the second hanger roller 118 is running at a constant speed. Furthermore, the abnormality detection device 9 uses the measured rotational speed of the third hanger roller 119 to detect an abnormality in the door rail 110 on which the third hanger roller 119 rolls while the third hanger roller 119 is running at a constant speed. According to this structure, it is possible to detect an abnormality in the door rail 110 that is rolled by the third hanger roller 119 during the constant speed of the third hanger roller 119. In addition, the abnormality detection device 9 uses the measured rotational speed of the fourth hanger roller 120 to detect an abnormality in the door rail 110 that is rolled by the fourth hanger roller 120 during the constant speed of the fourth hanger roller 120. According to this structure, it is possible to detect an abnormality in the door rail 110 that is rolled by the fourth hanger roller 120 during the constant speed of the fourth hanger roller 120.

[0258] Furthermore, the abnormality detection device 9 uses the measurement results of the fourth rotational speed measuring device 8 to detect that the first hanger roller 117 needs to be replaced due to wear. With this configuration, it is possible to detect that the first hanger roller 117 needs to be replaced due to wear without measuring the diameter of the first hanger roller 117. Furthermore, the abnormality detection device 9 uses the measurement results of the fourth rotational speed measuring device 8 to detect that the second hanger roller 118 needs to be replaced due to wear. With this configuration, it is possible to detect that the second hanger roller 118 needs to be replaced due to wear without measuring the diameter of the second hanger roller 118. Furthermore, the abnormality detection device 9 uses the measurement results of the fourth rotational speed measuring device 8 to detect that the third hanger roller 119 needs to be replaced due to wear. With this configuration, it is possible to detect that the third hanger roller 119 needs to be replaced due to wear without measuring the diameter of the third hanger roller 119. Furthermore, the abnormality detection device 9 uses the measurement results of the fourth rotational speed measuring device 8 to detect that the fourth hanger roller 120 needs to be replaced due to wear. According to this configuration, it is possible to detect that the fourth hanger roller 120 needs to be replaced due to wear, without measuring the diameter of the fourth hanger roller 120 .

[0259] Furthermore, in the elevator door system of Embodiment 1, the configuration of the fourth rotation speed measuring device 8 including the first hanger roller rotation speed measuring unit 801, the second hanger roller rotation speed measuring unit 802, the third hanger roller rotation speed measuring unit 803, and the fourth hanger roller rotation speed measuring unit 804 has been described. However, the fourth rotation speed measuring device 8 may be configured to include at least one of the first hanger roller rotation speed measuring unit 801, the second hanger roller rotation speed measuring unit 802, the third hanger roller rotation speed measuring unit 803, and the fourth hanger roller rotation speed measuring unit 804.

[0260] Label Description

[0261] 1: Elevator door device; 2: Elevator control panel; 3: Remote monitoring device; 4: Information center; 5: First speed measuring device; 6: Second speed measuring device; 7: Third speed measuring device; 8: Fourth speed measuring device; 9: Abnormality detection device; 101: Drive motor; 102: Door control device; 103: Hanger housing; 104: Drive pulley; 105: Drive belt; 106: Driven pulley; 107: Drive roller; 108: Interlocking rope; 109: Driven roller; 110: Hanger rail; 111: First car door; 112: The second car door; 113: The first door hanger (door hanger); 114: The second door hanger (door hanger); 115: The first connecting member; 116: The second connecting member; 117: The first hanger roller (hanger roller); 118: The second hanger roller (hanger roller); 119: The third hanger roller (hanger roller); 120: The fourth hanger roller (hanger roller); 801: The first hanger roller rotation speed measuring unit; 802: The second hanger roller rotation speed measuring unit; 803: The third hanger roller rotation speed measuring unit; 804: The fourth hanger roller rotation speed measuring unit.

Claims

1. An elevator door device system, the elevator door device system comprising: a first rotation speed measuring device for measuring the rotation speed of a drive pulley connected to the drive motor; a second rotation speed measuring device for measuring the rotation speed of a driven pulley to which the rotational force is transmitted from the driving pulley via a driving belt and the rotation speed of a driving roller rotating together with the driven pulley; a third rotation speed measuring device for measuring the rotation speed of a driven roller to which a rotational force is transmitted from the driving roller via a linkage rope; and An abnormality detection device detects an abnormality of the drive motor using the measurement result of the first speed measuring device, detects an abnormality of the drive pulley, the drive belt and the driven pulley using the measurement result of the first speed measuring device and the measurement result of the second speed measuring device, and detects an abnormality of the drive roller, the interlocking rope and the driven roller using the measurement result of the second speed measuring device and the measurement result of the third speed measuring device.

2. The elevator door device system according to claim 1, wherein: The abnormality detection device compares the rotation speed of the drive pulley measured by the first rotation speed measurement device with a preset reference drive pulley rotation speed to detect an abnormality of the drive motor.

3. The elevator door device system according to claim 1 or 2, wherein: The abnormality detection device predicts the rotational speed of the driven pulley based on the rotational speed of the driving pulley measured by the first rotational speed measuring device, compares the predicted rotational speed of the driven pulley with the rotational speed of the driven pulley measured by the second rotational speed measuring device, and detects abnormalities of the driving pulley, the driving belt and the driven pulley.

4. The elevator door device system according to any one of claims 1 to 3, wherein: The abnormality detection device compares the rotation speed of the driving roller measured by the second rotation speed measuring device and the rotation speed of the driven roller measured by the third rotation speed measuring device to detect abnormalities of the driving roller, the interlocking rope, and the driven roller.

5. The elevator door device system according to any one of claims 1 to 4, wherein: The elevator door device system further comprises a fourth rotation speed measuring device for measuring the rotation speed of a hanger roller provided on a door hanger connected to the linkage rope. The abnormality detection device detects abnormality of the hanger roller using a measurement result of the second rotation speed measuring device or a measurement result of the third rotation speed measuring device and a measurement result of the fourth rotation speed measuring device.

6. The elevator door device system according to claim 5, wherein: The abnormality detection device predicts the rotational speed of the hanger roller based on the rotational speed of the driving roller measured by the second rotational speed measuring device or the rotational speed of the driven roller measured by the third rotational speed measuring device, and compares the predicted rotational speed of the hanger roller with the rotational speed of the hanger roller measured by the fourth rotational speed measuring device to detect abnormalities of the hanger roller.

7. The elevator door device system according to claim 5 or 6, wherein: The abnormality detection device calculates the change in the rotation speed of the hanger roller per unit time during the acceleration process or the deceleration process in the moving path of the hanger roller based on the measured rotation speed of the hanger roller, and uses the calculated change in the rotation speed of the hanger roller to detect the abnormality of the hanger rail on which the hanger roller rolls during the acceleration process or the deceleration process.

8. The elevator door device system according to any one of claims 5 to 7, wherein: The abnormality detection device detects an abnormality of a hanger rail on which the hanger roller rolls during a constant speed process in a moving path of the hanger roller, using the measured rotation speed of the hanger roller.

9. The elevator door device system according to any one of claims 5 to 8, wherein: The abnormality detection device detects that the hanger roller needs to be replaced due to wear, using the measurement result of the fourth rotation speed measuring device.

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