Elevator Door Device System

Abstract

Provided is an elevator door device system capable of detecting an abnormality in a driving motor, an abnormality in a driving pulley, a driving belt, and a driven pulley, and an abnormality in a driving roller, an interlocking rope, and a driven roller. This elevator door device system comprises: a first rotation speed measurement device for measuring the rotation speed of the driving pulley; a second rotation speed measurement device for measuring the rotation speed of the driven pulley and the rotation speed of the driving roller; a third rotation speed measurement device for measuring the rotation speed of the driven roller; and an abnormality detection device which uses the measurement result from the first rotation speed measurement device to detect an abnormality in the driving motor, uses the measurement result from the first rotation speed measurement device and the measurement result from the second rotation speed measurement device to detect an abnormality in the driving pulley, the driving belt, and the driven pulley, and uses the measurement result from the second rotation speed measurement device and the measurement result from the third rotation speed measurement device to detect an abnormality in the driving roller, the interlocking rope, and the driven roller.

Description

Technical Field

[0001] The present disclosure relates to an elevator door device system.

Background Art

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

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] An elevator door device 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 device include abnormalities in the drive motor, abnormalities in the drive pulley, drive belt, and driven pulley, and abnormalities in the drive roller, interlocking rope, and driven roller. However, in the configuration described in Patent Document 1, it is not possible to determine which of the abnormalities in the drive motor, the drive pulley, the drive belt, the driven pulley, the drive roller, the interlocking rope, and the driven roller is the cause of the abnormality in the elevator door device. Therefore, when an abnormality in the elevator door device is detected, there is a problem that all of the drive motor, drive pulley, drive belt, driven pulley, drive roller, interlocking rope, and driven roller must be replaced.

[0005] The present disclosure has been made to solve the above-described problems, and an object thereof is to provide an elevator door device system capable of detecting abnormalities in a drive motor, abnormalities in a drive pulley, a drive belt, and a driven pulley, and abnormalities in a drive roller, an interlocking rope, and a driven roller.

Means for Solving the Problems

[0006] The elevator door device system according to the present disclosure includes a first rotational speed measuring device that measures the rotational speed of a drive pulley connected to a drive motor, the rotational speed of a driven pulley to which a rotational force is transmitted from the drive pulley via a drive belt, and the rotational speed of a drive roller that rotates together with the driven pulley, a second rotational speed measuring device that measures the rotational speed of a driven roller to which a rotational force is transmitted from the drive roller via an interlocking rope, and 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 measuring device, detects an abnormality in the drive pulley, the drive belt, and the driven pulley using the measurement result of the first rotational speed measuring device and the measurement result of the second rotational speed measuring device, and detects an abnormality in the drive roller, the interlocking rope, and the driven roller using the measurement result of the second rotational speed measuring device and the measurement result of the third rotational speed measuring device.

Effects of the Invention

[0007] According to the elevator door device system according to the present disclosure, it is possible to detect an abnormality in the drive motor, an abnormality in the drive pulley, the drive belt, and the driven pulley, and an abnormality in the drive roller, the interlocking rope, and the driven roller.

Brief Description of the Drawings

[0008]

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Mode for Carrying Out the Invention

[0009] Embodiment 1. FIG. 1 is a block diagram showing the elevator door device system according to Embodiment 1. The elevator door device system according to Embodiment 1 includes an elevator door device 1, an elevator control panel 2, a remote monitoring device 3, and an information center 4. Further, the elevator door device system according to Embodiment 1 includes a first rotational speed measuring device 5, a second rotational speed measuring device 6, a third rotational speed measuring device 7, a fourth rotational speed measuring device 8, and an abnormality detection device 9.

[0010] The elevator door device 1 includes a drive motor 101 and a door control device 102. The door control device 102 controls the drive of the drive motor 101.

[0011] Figure 2 is a front view showing the door-closed state of the elevator door apparatus 1 in FIG. 1. Figure 3 is a front view showing the door-open state of the elevator door apparatus 1 in FIG. 1. The elevator door apparatus 1 includes a hanger case 103, a drive pulley 104, a drive belt 105, a driven pulley 106, a drive roller 107, an interlocking rope 108, and a driven roller 109. Further, the elevator door apparatus 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. Further, the elevator door apparatus 1 includes a first hanger roller 117, a second hanger roller 118, a third hanger roller 119, and a fourth hanger roller 120.

[0012] The hanger case 103 is provided in an elevator car (not shown). FIGS. 2 and 3 show a part of the elevator door apparatus 1 as seen from a landing (not shown). The drive motor 101 is mounted on the elevator car. The drive pulley 104 is connected to the rotation shaft of the drive motor 101. Therefore, when the drive motor 101 is driven, the drive pulley 104 rotates.

[0013] 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. Let the rotation speed of the drive pulley 104 measured by the first rotation speed measuring device 5 be the actual measured drive pulley rotation speed M1.

[0014] The driven pulley 106 is rotatably supported by the hanger case 103. The drive belt 105 is formed in 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. When the drive pulley 104 rotates, the drive belt 105 moves in a circulating manner. The rotational force of the drive pulley 104 is transmitted to the driven pulley 106 via the drive belt 105. Therefore, when the drive pulley 104 rotates, the driven pulley 106 rotates.

[0015] The drive roller 107 is connected to the driven pulley 106. When the driven pulley 106 rotates, the drive roller 107 rotates. The rotational speed of the driven pulley 106 and the rotational speed of the drive roller 107 are the same as each other.

[0016] The second rotational speed measuring device 6 is provided on the driven pulley 106 or the drive roller 107. The second rotational speed measuring device 6 measures the rotational speed of the driven pulley 106 and the rotational speed of the drive roller 107. The measurement result of the second rotational speed measuring device 6 is output from the second rotational speed measuring device 6. The rotational speed of the driven pulley 106 measured by the second rotational speed measuring device 6 is defined as the actually measured rotational speed M2 of the driven pulley, and the rotational speed of the drive roller 107 measured by the second rotational speed measuring device 6 is defined as the actually measured rotational speed M3 of the drive roller. In the elevator door device system according to the first embodiment, the actually measured rotational speed M2 of the driven pulley and the actually measured rotational speed M3 of the drive roller are the same as each other.

[0017] Note that the second rotational speed measuring device 6 may be configured to include a driven pulley rotational speed measuring unit that measures the rotational speed of the driven pulley 106 and a drive roller rotational speed measuring unit that measures the rotational speed of the drive roller 107.

[0018] The driven roller 109 is rotatably supported by the hanger case 103. The drive 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 orthogonal to the height direction when the elevator car is viewed from the landing. The interlocking rope 108 is formed in an endless shape. The interlocking rope 108 is provided across the drive roller 107 and the driven roller 109. The rotational force of the drive roller 107 is transmitted to the interlocking rope 108. When the drive roller 107 rotates, the interlocking rope 108 circulates. The rotational force of the drive roller 107 is transmitted to the driven roller 109 via the interlocking rope 108. Therefore, when the drive roller 107 rotates, the driven roller 109 rotates.

[0019] The third rotational speed measuring device 7 is provided on the driven roller 109. The third rotational speed measuring device 7 measures the rotational speed of the driven roller 109. The measurement result of the third rotational speed measuring device 7 is output from the third rotational speed measuring device 7. Let the rotational speed of the driven roller 109 measured by the third rotational speed measuring device 7 be the actually measured driven roller rotational speed M4.

[0020] Immediately after the elevator door device 1 is installed in the elevator car, the diameters of the drive roller 107 and the driven roller 109 are the same as each other.

[0021] The door rail 110 is attached to the hanger case 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.

[0022] The first door hanger 113 is a door hanger attached to the upper part 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.

[0023] The first hanger roller 117 and the second hanger roller 118 are arranged apart from each other in the width direction D of the elevator car. Each of the first hanger roller 117 and the second hanger roller 118 is placed on the upper surface of the door rail 110. The first car door 111 is supported by 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.

[0024] The second door hanger 114 is a door hanger attached to the upper part 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.

[0025] The third hanger roller 119 and the fourth hanger roller 120 are arranged apart from each other in the width direction D of the elevator car. Each of the third hanger roller 119 and the fourth hanger roller 120 is placed on the upper surface of the door rail 110. The second car door 112 is supported by 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.

[0026] The first connecting member 115 connects the first door hanger 113 and the lower part of the interlocking rope 108. When the interlocking rope 108 moves in a circulating manner, the first connecting member 115 moves in the width direction D of the elevator car. When the first connecting member 115 moves, the first car door 111 moves in the width direction D of the elevator car.

[0027] 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 moves in a circulating manner, 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.

[0028] The direction in which the first connecting member 115 moves and the direction in which the second connecting member 116 moves are opposite to each other. Therefore, the direction in which the first car door 111 moves and the direction in which the second car door 112 moves are opposite to each other.

[0029] The fourth rotational speed measuring device 8 includes a first hanger roller rotational speed measuring unit 801, a second hanger roller rotational speed measuring unit 802, a third hanger roller rotational speed measuring unit 803, and a fourth hanger roller rotational speed measuring unit 804.

[0030] The first hanger roller rotational speed measuring unit 801 is provided on the first hanger roller 117. The first hanger roller rotational speed measuring unit 801 measures the rotational speed of the first hanger roller 117. The second hanger roller rotational speed measuring unit 802 is provided on the second hanger roller 118. The second hanger roller rotational speed measuring unit 802 measures the rotational speed of the second hanger roller 118. The third hanger roller rotational speed measuring unit 803 is provided on the third hanger roller 119. The third hanger roller rotational speed measuring unit 803 measures the rotational speed of the third hanger roller 119. The fourth hanger roller rotational speed measuring unit 804 is provided on the fourth hanger roller 120. The fourth hanger roller rotational speed measuring unit 804 measures the rotational speed of the fourth hanger roller 120.

[0031] The measurement results of the fourth rotational speed measuring device 8 are output from the fourth rotational speed measuring device 8. The rotational speed of the first hanger roller 117 measured by the first hanger roller rotational speed measuring unit 801 is defined as the actually measured rotational speed M5 of the first hanger roller. The rotational speed of the second hanger roller 118 measured by the second hanger roller rotational speed measuring unit 802 is defined as the actually measured rotational speed M6 of the second hanger roller. The rotational speed of the third hanger roller 119 measured by the third hanger roller rotational speed measuring unit 803 is defined as the actually measured rotational speed M7 of the third hanger roller. The rotational speed of the fourth hanger roller 120 measured by the fourth hanger roller rotational speed measuring unit 804 is defined as the actually measured rotational speed M8 of the fourth hanger roller.

[0032] 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 as each other.

[0033] The actually measured rotational speed M1 of the drive pulley output from the first rotational speed measuring device 5 is input to the abnormality detection device 9. The measurement by the first rotational speed measuring device 5 is performed each time the elevator door device 1 is driven. Each time the measurement by the first rotational speed measuring device 5 is performed, the actually measured rotational speed M1 of the drive pulley is input to the abnormality detection device 9.

[0034] The actually measured rotational speed M2 of the driven pulley and the actually measured rotational speed M3 of the drive roller output from the second rotational speed measuring device 6 are input to the abnormality detection device 9. The measurement by the second rotational speed measuring device 6 is performed each time the elevator door device 1 is driven. Each time the measurement by the second rotational speed measuring device 6 is performed, the actually measured rotational speed M2 of the driven pulley and the actually measured rotational speed M3 of the drive roller are input to the abnormality detection device 9.

[0035] The actually measured rotational speed M4 of the driven roller output from the third rotational speed measuring device 7 is input to the abnormality detection device 9. The measurement by the third rotational speed measuring device 7 is performed each time the elevator door device 1 is driven. Each time the measurement by the third rotational speed measuring device 7 is performed, the actually measured rotational speed M4 of the driven roller is input to the abnormality detection device 9.

[0036] The actually measured first hanger roller rotation speed M5, the actually measured second hanger roller rotation speed M6, the actually measured third hanger roller rotation speed M7, and the actually measured fourth hanger roller rotation speed M8 output from the fourth rotation speed measuring device 8 are input to the abnormality detection device 9. The measurement by the fourth rotation speed measuring device 8 is performed every time the elevator door device 1 is driven. Every time the measurement by the fourth rotation speed measuring device 8 is performed, the actually measured first hanger roller rotation speed M5, the actually measured second hanger roller rotation speed M6, the actually measured third hanger roller rotation speed M7, and the actually measured fourth hanger roller rotation speed M8 are input to the abnormality detection device 9.

[0037] The abnormality detection device 9 detects an abnormality of the drive motor 101 using the measurement result of the first rotation speed measuring device 5. Specifically, the abnormality detection device 9 detects an abnormality of the drive motor 101 as follows.

[0038] A reference drive pulley rotation speed R1 is preset in the abnormality detection device 9. The reference drive pulley rotation speed R1 is a reference value used when determining the presence or absence of an abnormality of the drive motor 101. The abnormality detection device 9 compares the actually measured drive pulley rotation speed M1 with the reference drive pulley rotation speed R1 to detect an abnormality of the drive motor 101.

[0039] Specifically, when the actually measured drive pulley rotation speed M1 and the reference drive pulley rotation speed R1 match each other, the abnormality detection device 9 determines that there is no abnormality in the drive motor 101. On the other hand, when the actually measured drive pulley rotation speed M1 and the reference drive pulley rotation speed R1 do not match each other, the abnormality detection device 9 determines that there is an abnormality in the drive motor 101.

[0040] The determination as to whether the actually measured drive pulley rotation speed M1 and the reference drive pulley rotation speed R1 match each other is made based on whether the difference between the actually measured drive pulley rotation speed M1 and the reference drive pulley rotation speed R1 is within a preset range.

[0041] Further, the abnormality detection device 9 detects abnormalities in the drive pulley 104, the drive belt 105, and the driven pulley 106 by using the measurement results of the first rotational speed measurement device 5 and the measurement results of the second rotational speed measurement 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.

[0042] The abnormality detection device 9 predicts the rotational speed of the driven pulley 106 from the actually measured rotational speed M1 of the drive pulley. Let the predicted rotational speed of the driven pulley 106 be the predicted driven pulley rotational speed R2. The abnormality detection device 9 compares the actually measured driven pulley rotational speed M2 with the predicted driven pulley rotational speed R2 to detect abnormalities in the drive pulley 104, the drive belt 105, and the driven pulley 106.

[0043] Specifically, when the actually measured driven pulley rotational speed M2 and the predicted driven pulley rotational speed R2 match each other, the abnormality detection device 9 determines that there is no abnormality in any of the drive pulley 104, the drive belt 105, and the driven pulley 106. On the other hand, when the predicted driven pulley rotational speed R2 and the actually measured driven pulley rotational speed M2 do not match each other, the abnormality detection device 9 determines that there is an abnormality in any of the drive pulley 104, the drive belt 105, and the driven pulley 106.

[0044] The determination as to whether the predicted driven pulley rotational speed R2 and the actually measured driven pulley rotational speed M2 match each other is made based on whether the difference between the predicted driven pulley rotational speed R2 and the actually measured driven pulley rotational speed M2 is within a preset range.

[0045] Examples of abnormalities in the drive pulley 104, the drive belt 105, and the driven pulley 106 include an abnormality in the drive pulley 104, an abnormality in the driven pulley 106, the occurrence of slippage between the drive pulley 104 and the drive belt 105, and the occurrence of slippage between the driven pulley 106 and the drive belt 105.

[0046] Further, the abnormality detection device 9 detects abnormalities in the drive roller 107, the interlocking rope 108, and the driven roller 109 by using the measurement results of the second rotational speed measurement device 6 and the measurement results of the third rotational speed measurement 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.

[0047] The abnormality detection device 9 compares the actually measured drive roller rotational speed M3 with the actually measured driven roller rotational speed M4 to detect abnormalities in the drive roller 107, the interlocking rope 108, and the driven roller 109.

[0048] Specifically, when the actually measured drive roller rotational speed M3 and the actually measured driven roller rotational speed M4 match each other, the abnormality detection device 9 determines that there are no abnormalities in the drive roller 107, the interlocking rope 108, and the driven roller 109. On the other hand, when the actually measured drive roller rotational speed M3 and the actually measured driven roller rotational speed M4 do not match each other, it is determined that there are abnormalities in the drive roller 107, the interlocking rope 108, and the driven roller 109.

[0049] The determination as to whether the actually measured drive roller rotational speed M3 and the actually measured driven roller rotational speed M4 match each other is made based on whether the difference between the actually measured drive roller rotational speed M3 and the actually measured driven roller rotational speed M4 is within a preset range.

[0050] Examples of abnormalities in the drive roller 107, the interlocking rope 108, and the driven roller 109 include an abnormality in the drive roller 107, an abnormality in the driven roller 109, the occurrence of slippage between the drive roller 107 and the interlocking rope 108, and the occurrence of slippage between the driven roller 109 and the interlocking rope 108.

[0051] Further, the abnormality detection device 9 detects abnormalities of the first hanger roller 117, the second hanger roller 118, the third hanger roller 119, and the fourth hanger roller 120 by using the measurement results of the third rotational speed measurement device 7 and the measurement results of the fourth rotational speed measurement device 8. Specifically, the abnormality detection device 9 detects abnormalities of the first hanger roller 117, the second hanger roller 118, the third hanger roller 119, and the fourth hanger roller 120 as follows.

[0052] The abnormality detection device 9 predicts the rotational speeds of the first hanger roller 117, the second hanger roller 118, the third hanger roller 119, and the fourth hanger roller 120 from the actually measured driven roller rotational speed M4. In the elevator door device system according to the first embodiment, the predicted rotational speeds 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 as each other. Therefore, the predicted rotational speeds of the first hanger roller 117, the second hanger roller 118, the third hanger roller 119, and the fourth hanger roller 120 are defined as the predicted hanger roller rotational speed R3.

[0053] Note that the abnormality detection device 9 may detect abnormalities of the first hanger roller 117, the second hanger roller 118, the third hanger roller 119, and the fourth hanger roller 120 by using the measurement results of the second rotational speed measurement device 6 and the measurement results of the fourth rotational speed measurement device 8. In this case, the abnormality detection device 9 predicts the rotational speeds of the first hanger roller 117, the second hanger roller 118, the third hanger roller 119, and the fourth hanger roller 120 from the actually measured driving roller rotational speed M3.

[0054] The abnormality detection device 9 compares the actually measured first hanger roller rotation speed M5 with the predicted hanger roller rotation speed R3 to detect an abnormality in the first hanger roller 117. Further, the abnormality detection device 9 compares the actually measured second hanger roller rotation speed M6 with the predicted hanger roller rotation speed R3 to detect an abnormality in the second hanger roller 118. Further, the abnormality detection device 9 compares the actually measured third hanger roller rotation speed M7 with the predicted hanger roller rotation speed R3 to detect an abnormality in the third hanger roller 119. Further, the abnormality detection device 9 compares the actually measured fourth hanger roller rotation speed M8 with the predicted hanger roller rotation speed R3 to detect an abnormality in the fourth hanger roller 120.

[0055] Further, the abnormality detection device 9 uses the measurement result of the fourth rotation speed measurement device 8 to detect an abnormality in the door rail 110. Specifically, the abnormality detection device 9 detects an abnormality in the door rail 110 as follows.

[0056] The movement paths of the first hanger roller 117, the second hanger roller 118, the third hanger roller 119, and the fourth hanger roller 120 are each composed of an acceleration process, a constant speed process, and a deceleration process.

[0057] The abnormality detection device 9 calculates the change amount of the rotation speed of the first hanger roller 117 per unit time in the acceleration process of the first hanger roller 117 from the actually measured first hanger roller rotation speed M5. The calculated change amount of the rotation speed of the first hanger roller 117 per unit time is defined as the acceleration process first hanger roller rotation speed change amount R4. The abnormality detection device 9 uses the acceleration process first hanger roller rotation speed change amount R4 to detect an abnormality in the door rail 110 on which the first hanger roller 117 rolls in the acceleration process of the first hanger roller 117.

[0058] Specifically, when there is no disturbance in the change amount R4 of the rotation speed of the first hanger roller 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 change amount R4 of the rotation speed of the first hanger roller 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.

[0059] The determination of whether there is a disturbance in the change amount R4 of the rotation speed of the first hanger roller during the acceleration process is made based on whether the change amount R4 of the rotation speed of the first hanger roller during the acceleration process is within a preset range.

[0060] In addition, the abnormality detection device 9 uses the actually measured rotation speed M5 of the first hanger roller to detect an abnormality in the door rail 110 on which the first hanger roller 117 rolls during the constant speed process of the first hanger roller 117.

[0061] Specifically, when there is no disturbance in the actually measured rotation speed M5 of the first hanger roller, 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 constant speed process of the first hanger roller 117. On the other hand, when there is a disturbance in the actually measured rotation speed M5 of the first hanger roller, 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 constant speed process of the first hanger roller 117.

[0062] The determination of whether there is a disturbance in the actually measured rotation speed M5 of the first hanger roller is made based on whether the actually measured rotation speed M5 of the first hanger roller is within a preset range.

[0063] Further, the abnormality detection device 9 calculates the change amount of the rotation speed of the first hanger roller 117 per unit time in the deceleration process of the first hanger roller 117 from the actually measured rotation speed M5 of the first hanger roller. The calculated change amount of the rotation speed of the first hanger roller 117 per unit time is defined as the deceleration process first hanger roller rotation speed change amount R5. The abnormality detection device 9 uses the deceleration process first hanger roller rotation speed change amount R5 to detect an abnormality in the door rail 110 on which the first hanger roller 117 rolls in the deceleration process of the first hanger roller 117.

[0064] Specifically, when there is no disturbance in the deceleration process first hanger roller rotation speed change amount R5, the abnormality detection device 9 determines that there is no abnormality in the door rail 110 on which the first hanger roller 117 rolls in the deceleration process of the first hanger roller 117. On the other hand, when there is a disturbance in the deceleration process first hanger roller rotation speed change amount R5, the abnormality detection device 9 determines that there is an abnormality in the door rail 110 on which the first hanger roller 117 rolls in the deceleration process of the first hanger roller 117.

[0065] The determination of whether there is a disturbance in the deceleration process first hanger roller rotation speed change amount R5 is made based on whether the deceleration process first hanger roller rotation speed change amount R5 is within a preset range.

[0066] Further, the abnormality detection device 9 calculates the change amount of the rotation speed of the second hanger roller 118 per unit time in the acceleration process of the second hanger roller 118 from the actually measured rotation speed M6 of the second hanger roller. The calculated change amount of the rotation speed of the second hanger roller 118 per unit time is defined as the acceleration process second hanger roller rotation speed change amount R6. The abnormality detection device 9 uses the acceleration process second hanger roller rotation speed change amount R6 to detect an abnormality in the door rail 110 on which the second hanger roller 118 rolls in the acceleration process of the second hanger roller 118.

[0067] Specifically, when there is no disturbance in the change amount R6 of the rotation speed of the second hanger roller 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 change amount R6 of the rotation speed of the second hanger roller 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.

[0068] The determination of whether there is a disturbance in the change amount R6 of the rotation speed of the second hanger roller during the acceleration process is made based on whether the change amount R6 of the rotation speed of the second hanger roller during the acceleration process is within a preset range.

[0069] In addition, the abnormality detection device 9 uses the actually measured rotation speed M6 of the second hanger roller to detect an abnormality in the door rail 110 on which the second hanger roller 118 rolls during the constant speed process of the second hanger roller 118.

[0070] Specifically, when there is no disturbance in the actually measured rotation speed M6 of the second hanger roller, 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 constant speed process of the second hanger roller 118. On the other hand, when there is a disturbance in the actually measured rotation speed M6 of the second hanger roller, 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 constant speed process of the second hanger roller 118.

[0071] The determination of whether there is a disturbance in the actually measured rotation speed M6 of the second hanger roller is made based on whether the actually measured rotation speed M6 of the second hanger roller is within a preset range.

[0072] Further, the abnormality detection device 9 calculates the change amount of the rotation speed of the second hanger roller 118 per unit time in the deceleration process of the second hanger roller 118 from the actually measured rotation speed M6 of the second hanger roller. The calculated change amount of the rotation speed of the second hanger roller 118 per unit time is defined as the change amount R7 of the rotation speed of the second hanger roller in the deceleration process. The abnormality detection device 9 uses the change amount R7 of the rotation speed of the second hanger roller in the deceleration process to detect an abnormality in the door rail 110 on which the second hanger roller 118 rolls in the deceleration process of the second hanger roller 118.

[0073] Specifically, when there is no disturbance in the change amount R7 of the rotation speed of the second hanger roller in 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 in the deceleration process of the second hanger roller 118. On the other hand, when there is a disturbance in the change amount R7 of the rotation speed of the second hanger roller in 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 in the deceleration process of the second hanger roller 118.

[0074] The determination of whether there is a disturbance in the change amount R7 of the rotation speed of the second hanger roller in the deceleration process is made based on whether the change amount R7 of the rotation speed of the second hanger roller in the deceleration process is within a preset range.

[0075] Further, the abnormality detection device 9 calculates the change amount of the rotation speed of the third hanger roller 119 per unit time in the acceleration process of the third hanger roller 119 from the actually measured rotation speed M7 of the third hanger roller. The calculated change amount of the rotation speed of the third hanger roller 119 per unit time is defined as the change amount R8 of the rotation speed of the third hanger roller in the acceleration process. The abnormality detection device 9 uses the change amount R8 of the rotation speed of the third hanger roller in the acceleration process to detect an abnormality in the door rail 110 on which the third hanger roller 119 rolls in the acceleration process of the third hanger roller 119.

[0076] Specifically, when there is no disturbance in the change amount R8 of the rotation speed of the third hanger roller 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 change amount R8 of the rotation speed of the third hanger roller 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.

[0077] The determination of whether there is a disturbance in the change amount R8 of the rotation speed of the third hanger roller during the acceleration process is made based on whether the change amount R8 of the rotation speed of the third hanger roller during the acceleration process is within a preset range.

[0078] In addition, the abnormality detection device 9 uses the actually measured rotation speed M7 of the third hanger roller to detect an abnormality in the door rail 110 on which the third hanger roller 119 rolls during the constant speed process of the third hanger roller 119.

[0079] Specifically, when there is no disturbance in the actually measured rotation speed M7 of the third hanger roller, 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 constant speed process of the third hanger roller 119. On the other hand, when there is a disturbance in the actually measured rotation speed M7 of the third hanger roller, 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 constant speed process of the third hanger roller 119.

[0080] The determination of whether there is a disturbance in the actually measured rotation speed M7 of the third hanger roller is made based on whether the actually measured rotation speed M7 of the third hanger roller is within a preset range.

[0081] Further, the abnormality detection device 9 calculates the change amount of the rotation speed of the third hanger roller 119 per unit time in the deceleration process of the third hanger roller 119 from the actually measured rotation speed M7 of the third hanger roller. The calculated change amount of the rotation speed of the third hanger roller 119 per unit time is defined as the deceleration process third hanger roller rotation speed change amount R9. The abnormality detection device 9 uses the deceleration process third hanger roller rotation speed change amount R9 to detect 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.

[0082] Specifically, when there is no disturbance in the deceleration process third hanger roller rotation speed change amount R9, 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 deceleration process third hanger roller rotation speed change amount R9, 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.

[0083] The determination of whether there is a disturbance in the deceleration process third hanger roller rotation speed change amount R9 is made based on whether the deceleration process third hanger roller rotation speed change amount R9 is within a preset range.

[0084] Further, the abnormality detection device 9 calculates the change amount of the rotation speed of the fourth hanger roller 120 per unit time in the acceleration process of the fourth hanger roller 120 from the actually measured rotation speed M8 of the fourth hanger roller. The calculated change amount of the rotation speed of the fourth hanger roller 120 per unit time is defined as the acceleration process fourth hanger roller rotation speed change amount R10. The abnormality detection device 9 uses the acceleration process fourth hanger roller rotation speed change amount R10 to detect 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.

[0085] Specifically, when there is no disturbance in the change amount R10 of the rotational speed of the fourth hanger roller 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 change amount R10 of the rotational speed of the fourth hanger roller 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.

[0086] The determination of whether there is a disturbance in the change amount R10 of the rotational speed of the fourth hanger roller during the acceleration process is made based on whether the change amount R10 of the rotational speed of the fourth hanger roller during the acceleration process is within a preset range.

[0087] Further, the abnormality detection device 9 uses the measured rotational speed M8 of the fourth hanger roller to detect an abnormality in the door rail 110 on which the fourth hanger roller 120 rolls during the constant-speed process of the fourth hanger roller 120.

[0088] Specifically, when there is no disturbance in the measured rotational speed M8 of the fourth hanger roller, 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 constant-speed process of the fourth hanger roller 120. On the other hand, when there is a disturbance in the measured rotational speed M8 of the fourth hanger roller, 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 constant-speed process of the fourth hanger roller 120.

[0089] The determination of whether there is a disturbance in the measured rotational speed M8 of the fourth hanger roller is made based on whether the measured rotational speed M8 of the fourth hanger roller is within a preset range.

[0090] Further, the abnormality detection device 9 calculates the change amount of the rotation speed of the fourth hanger roller 120 per unit time in the deceleration process of the fourth hanger roller 120 from the actually measured rotation speed M8 of the fourth hanger roller. The calculated change amount of the rotation speed of the fourth hanger roller 120 per unit time is defined as the deceleration process fourth hanger roller rotation speed change amount R11. The abnormality detection device 9 uses the deceleration process fourth hanger roller rotation speed change amount R11 to detect an abnormality in the door rail 110 on which the fourth hanger roller 120 rolls in the deceleration process of the fourth hanger roller 120.

[0091] Specifically, when there is no disturbance in the deceleration process fourth hanger roller rotation speed change amount R11, the abnormality detection device 9 determines that there is no abnormality in the door rail 110 on which the fourth hanger roller 120 rolls in the deceleration process of the fourth hanger roller 120. On the other hand, when there is a disturbance in the deceleration process fourth hanger roller rotation speed change amount R11, the abnormality detection device 9 determines that there is an abnormality in the door rail 110 on which the fourth hanger roller 120 rolls in the deceleration process of the fourth hanger roller 120.

[0092] The determination of whether there is a disturbance in the deceleration process fourth hanger roller rotation speed change amount R11 is made based on whether the deceleration process fourth hanger roller rotation speed change amount R11 is within a preset range.

[0093] The abnormality detection device 9 uses the measurement results of the fourth rotation speed measurement device 8 to detect that each of the first hanger roller 117, the second hanger roller 118, the third hanger roller 119, and the fourth hanger roller 120 needs to be replaced due to wear. Specifically, the abnormality detection device 9 detects that each of the first hanger roller 117, the second hanger roller 118, the third hanger roller 119, and the fourth hanger roller 120 needs to be replaced due to wear as follows.

[0094] The abnormality detection device 9 is preset with a reference hanger roller wear rotation number R12. The reference hanger roller wear rotation number R12 is a reference value used when determining whether each of the first hanger roller 117, the second hanger roller 118, the third hanger roller 119, and the fourth hanger roller 120 needs to be replaced due to wear.

[0095] The abnormality detection device 9 compares the actually measured first hanger roller rotation number M5 with the reference hanger roller wear rotation number R12, and detects that the first hanger roller 117 needs to be replaced due to wear.

[0096] Specifically, when the actually measured first hanger roller rotation number M5 exceeds the reference hanger roller wear rotation number 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 actually measured first hanger roller rotation number M5 does not exceed the reference hanger roller wear rotation number R12, the abnormality detection device 9 determines that the first hanger roller 117 does not need to be replaced due to wear.

[0097] The abnormality detection device 9 compares the actually measured second hanger roller rotation number M6 with the reference hanger roller wear rotation number R12, and detects that the second hanger roller 118 needs to be replaced due to wear.

[0098] Specifically, when the actually measured second hanger roller rotation number M6 exceeds the reference hanger roller wear rotation number 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 actually measured second hanger roller rotation number M6 does not exceed the reference hanger roller wear rotation number R12, the abnormality detection device 9 determines that the second hanger roller 118 does not need to be replaced due to wear.

[0099] The abnormality detection device 9 compares the actually measured third hanger roller rotation number M7 with the reference hanger roller wear rotation number R12, and detects that the third hanger roller 119 needs to be replaced due to wear.

[0100] Specifically, when the actually measured rotation speed M7 of the third hanger roller exceeds the wear rotation speed R12 of the reference hanger roller, 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 actually measured rotation speed M7 of the third hanger roller does not exceed the wear rotation speed R12 of the reference hanger roller, the abnormality detection device 9 determines that the third hanger roller 119 does not need to be replaced due to wear.

[0101] The abnormality detection device 9 compares the actually measured rotation speed M8 of the fourth hanger roller with the wear rotation speed R12 of the reference hanger roller, and detects that the fourth hanger roller 120 needs to be replaced due to wear.

[0102] Specifically, when the actually measured rotation speed M8 of the fourth hanger roller exceeds the wear rotation speed R12 of the reference hanger roller, 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 actually measured rotation speed M8 of the fourth hanger roller does not exceed the wear rotation speed R12 of the reference hanger roller, the abnormality detection device 9 determines that the fourth hanger roller 120 does not need to be replaced due to wear.

[0103] When the abnormality detection device 9 detects an abnormality in the drive motor 101, the abnormality detection device 9 outputs a signal indicating that there is an abnormality in the drive motor 101. The signal indicating that there is an abnormality 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 there is an abnormality in the drive motor 101 is input to the remote monitoring device 3, the remote monitoring device 3 reports to the information center 4 that there is an abnormality in the drive motor 101.

[0104] When the abnormality detection device 9 detects an abnormality in the drive pulley 104, the drive belt 105, and the driven pulley 106, the abnormality detection device 9 outputs a signal indicating that there is an abnormality in the drive pulley 104, the drive belt 105, and the driven pulley 106. The signal indicating that there is an abnormality in the drive pulley 104, the drive belt 105, and 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 that there is an abnormality in the drive pulley 104, the drive belt 105, and the driven pulley 106 is input to the remote monitoring device 3, the remote monitoring device 3 reports to the information center 4 that there is an abnormality in the drive pulley 104, the drive belt 105, and the driven pulley 106.

[0105] When the abnormality detection device 9 detects an abnormality in the drive roller 107, the interlocking rope 108, and the driven roller 109, the abnormality detection device 9 outputs a signal indicating that there is an abnormality in the drive roller 107, the interlocking rope 108, and the driven roller 109. The signal indicating that there is an abnormality in the drive roller 107, the interlocking rope 108, and 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 that there is an abnormality in the drive roller 107, the interlocking rope 108, and the driven roller 109 is input to the remote monitoring device 3, the remote monitoring device 3 reports to the information center 4 that there is an abnormality in the drive roller 107, the interlocking rope 108, and the driven roller 109.

[0106] 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 there is an abnormality in the first hanger roller 117. The signal indicating that there is an abnormality 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 there is an abnormality in the first hanger roller 117 is input to the remote monitoring device 3, the remote monitoring device 3 reports to the information center 4 that there is an abnormality in the first hanger roller 117.

[0107] 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 there is an abnormality in the second hanger roller 118. The signal indicating that there is an abnormality 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 there is an abnormality in the second hanger roller 118 is input to the remote monitoring device 3, the remote monitoring device 3 reports to the information center 4 that there is an abnormality in the second hanger roller 118.

[0108] 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 there is an abnormality in the third hanger roller 119. The signal indicating that there is an abnormality 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 there is an abnormality in the third hanger roller 119 is input to the remote monitoring device 3, the remote monitoring device 3 reports to the information center 4 that there is an abnormality in the third hanger roller 119.

[0109] 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 there is an abnormality in the fourth hanger roller 120. The signal indicating that there is an abnormality 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 there is an abnormality in the fourth hanger roller 120 is input to the remote monitoring device 3, the remote monitoring device 3 reports to the information center 4 that there is an abnormality in the fourth hanger roller 120.

[0110] When the abnormality detection device 9 detects an abnormality in the door rail 110, the abnormality detection device 9 outputs a signal indicating that there is an abnormality in the door rail 110. The signal indicating that there is an abnormality in the door rail 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 that there is an abnormality in the door rail 110 is input to the remote monitoring device 3, the remote monitoring device 3 reports to the information center 4 that there is an abnormality in the door rail 110.

[0111] 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.

[0112] 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.

[0113] 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.

[0114] 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.

[0115] Next, the processing of the elevator door device system according to Embodiment 1 will be described. First, the processing of the elevator door device system at the time of door opening will be described. FIG. 4 is a flowchart showing the processing at the time of door opening in the elevator door device system according to Embodiment 1. In the processing at the time of door opening in the elevator door device system according to Embodiment 1, the respective results measured at the time of door opening 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 are used.

[0116] First, in step S1, a drive motor abnormality determination process is performed. FIG. 5 is a flowchart showing the drive motor abnormality determination process of FIG. 4. In the drive motor abnormality determination process, first, in step S101, the abnormality detection device 9 determines whether the actually measured drive pulley rotation speed M1 and the reference drive pulley rotation speed R1 match each other.

[0117] If, in step S101, the abnormality detection device 9 determines that the actually measured drive pulley rotation speed M1 and the reference drive pulley rotation speed R1 match each other, the drive motor abnormality determination process ends.

[0118] On the other hand, if, in step S101, the abnormality detection device 9 determines that the actually measured drive pulley rotation speed M1 and the reference drive pulley rotation speed R1 do not match each other, the processing of the drive motor abnormality determination process proceeds to step S102.

[0119] In step S102, the abnormality detection device 9 determines that there is an abnormality in the drive motor 101. Thereafter, a signal indicating that there is an abnormality 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. Thereafter, the process of the drive motor abnormality determination step proceeds to step S103.

[0120] In step S103, the remote monitoring device 3 reports to the information center 4 that there is an abnormality in the drive motor 101. Thereafter, the drive motor abnormality determination step ends.

[0121] After the drive motor abnormality determination step ends, the process of the elevator door device system proceeds to step S2. In step S2, a drive pulley - drive belt - driven pulley abnormality determination step is performed. FIG. 6 is a flowchart showing the drive pulley - drive belt - driven pulley abnormality determination step of FIG. 4. In the drive pulley - drive belt - driven pulley abnormality determination step, first, in step S201, the abnormality detection device 9 determines whether the actually measured rotation speed M2 of the driven pulley and the predicted rotation speed R2 of the driven pulley match each other.

[0122] If in step S201, the abnormality detection device 9 determines that the actually measured rotation speed M2 of the driven pulley and the predicted rotation speed R2 of the driven pulley match each other, the drive pulley - drive belt - driven pulley abnormality determination step ends.

[0123] On the other hand, if in step S201, the abnormality detection device 9 determines that the actually measured rotation speed M2 of the driven pulley and the predicted rotation speed R2 of the driven pulley do not match each other, the process of the drive pulley - drive belt - driven pulley abnormality determination step proceeds to step S202.

[0124] In step S202, the abnormality detection device 9 determines that there is an abnormality in the drive pulley 104, the drive belt 105, and the driven pulley 106. Thereafter, a signal indicating that there is an abnormality in the drive pulley 104, the drive belt 105, and the driven pulley 106 is input from the abnormality detection device 9 to the remote monitoring device 3 via the elevator control panel 2. Thereafter, the process of the drive pulley - drive belt - driven pulley abnormality determination step proceeds to step S203.

[0125] In step S203, the remote monitoring device 3 reports to the information center 4 that there is an abnormality in the drive pulley 104, the drive belt 105, and the driven pulley 106. Thereafter, the drive pulley - drive belt - driven pulley abnormality determination step ends.

[0126] After the drive pulley - drive belt - driven pulley abnormality determination step ends, the process of the elevator door device system proceeds to step S3. In step S3, a drive roller - interlocking rope - driven roller abnormality determination step is performed. FIG. 7 is a flowchart showing the drive roller - interlocking rope - driven roller abnormality determination step of FIG. 4. In the drive roller - interlocking rope - driven roller abnormality determination step, first, in step S301, the abnormality detection device 9 determines whether the actually measured drive roller rotation speed M3 and the actually measured driven roller rotation speed M4 match each other.

[0127] If in step S301, the abnormality detection device 9 determines that the actually measured drive roller rotation speed M3 and the actually measured driven roller rotation speed M4 match each other, the drive roller - interlocking rope - driven roller abnormality determination step ends.

[0128] On the other hand, if in step S301, the abnormality detection device 9 determines that the actually measured drive roller rotation speed M3 and the actually measured driven roller rotation speed M4 do not match each other, the process of the drive roller - interlocking rope - driven roller abnormality determination step proceeds to step S302.

[0129] In step S302, the abnormality detection device 9 determines that there is an abnormality in the drive roller 107, the interlocking rope 108, and the driven roller 109. Thereafter, a signal indicating that there is an abnormality in the drive roller 107, the interlocking rope 108, and the driven roller 109 is input from the abnormality detection device 9 to the remote monitoring device 3 via the elevator control panel 2. Thereafter, the process of the drive roller - interlocking rope - driven roller abnormality determination step proceeds to step S303.

[0130] In step S303, the remote monitoring device 3 reports to the information center 4 that there is an abnormality in the drive roller 107, the interlocking rope 108, and the driven roller 109. Thereafter, the drive roller - interlocking rope - driven roller abnormality determination step ends.

[0131] After the drive roller - interlocking rope - driven roller abnormality determination step ends, the process of the elevator door device system proceeds to step S4. In step S4, a hanger roller abnormality determination step is performed. FIG. 8 is a flowchart showing the hanger roller abnormality determination step of FIG. 4. In the hanger roller abnormality determination step, first, in step S401, the abnormality detection device 9 determines whether or not the actually measured first hanger roller rotation speed M5 and the predicted hanger roller rotation speed R3 match each other.

[0132] If, in step S401, the abnormality detection device 9 determines that the actually measured first hanger roller rotation speed M5 and the predicted hanger roller rotation speed R3 match each other, the process of the hanger roller abnormality determination step proceeds to step S404.

[0133] On the other hand, if, in step S401, the abnormality detection device 9 determines that the actually measured first hanger roller rotation speed M5 and the predicted hanger roller rotation speed R3 do not match each other, the process of the hanger roller abnormality determination step proceeds to step S402.

[0134] In step S402, the abnormality detection device 9 determines that there is an abnormality in the first hanger roller 117. After that, a signal indicating that there is an abnormality 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. Then, the process of the hanger roller abnormality determination step proceeds to step S403.

[0135] In step S403, the remote monitoring device 3 reports to the information center 4 that there is an abnormality in the first hanger roller 117. Then, the process of the hanger roller abnormality determination step proceeds to step S404.

[0136] In step S404, the abnormality detection device 9 determines whether the actually measured rotation speed M6 of the second hanger roller matches the predicted rotation speed R3 of the hanger roller.

[0137] In step S404, if the abnormality detection device 9 determines that the actually measured rotation speed M6 of the second hanger roller matches the predicted rotation speed R3 of the hanger roller, the process of the hanger roller abnormality determination step proceeds to step S407.

[0138] On the other hand, in step S404, if the abnormality detection device 9 determines that the actually measured rotation speed M6 of the second hanger roller does not match the predicted rotation speed R3 of the hanger roller, the process of the hanger roller abnormality determination step proceeds to step S405.

[0139] In step S405, the abnormality detection device 9 determines that there is an abnormality in the second hanger roller 118. After that, a signal indicating that there is an abnormality 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. Then, the process of the hanger roller abnormality determination step proceeds to step S406.

[0140] In step S406, the remote monitoring device 3 reports to the information center 4 that there is an abnormality in the second hanger roller 118. Then, the process of the hanger roller abnormality determination step proceeds to step S407.

[0141] 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 match each other.

[0142] In step S407, when the abnormality detection device 9 determines that the actually measured third hanger roller rotation speed M7 and the predicted hanger roller rotation speed R3 match each other, the process of the hanger roller abnormality determination step proceeds to step S410.

[0143] On the other hand, in step S407, when the abnormality detection device 9 determines that the actually measured third hanger roller rotation speed M7 and the predicted hanger roller rotation speed R3 do not match each other, the process of the hanger roller abnormality determination step proceeds to step S408.

[0144] In step S408, the abnormality detection device 9 determines that there is an abnormality in the third hanger roller 119. After that, a signal indicating that there is an abnormality 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. After that, the process of the hanger roller abnormality determination step proceeds to step S409.

[0145] In step S409, the remote monitoring device 3 reports to the information center 4 that there is an abnormality in the third hanger roller 119. After that, the process of the hanger roller abnormality determination step proceeds to step S410.

[0146] 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 match each other.

[0147] In step S410, when the abnormality detection device 9 determines that the actually measured fourth hanger roller rotation speed M8 and the predicted hanger roller rotation speed R3 match each other, the hanger roller abnormality determination step ends.

[0148] On the other hand, in step S410, when the abnormality detection device 9 determines that the actually measured fourth hanger roller rotation speed M8 and the predicted hanger roller rotation speed R3 do not match each other, the process of the hanger roller abnormality determination step proceeds to step S411.

[0149] In step S411, the abnormality detection device 9 determines that there is an abnormality in the fourth hanger roller 120. Thereafter, a signal indicating that there is an abnormality 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. Thereafter, the process of the hanger roller abnormality determination step proceeds to step S412.

[0150] In step S412, the remote monitoring device 3 reports to the information center 4 that there is an abnormality in the fourth hanger roller 120. Thereafter, the hanger roller abnormality determination step ends.

[0151] After the hanger roller abnormality determination step ends, the process of the elevator door device system proceeds to step S5. In step S5, a hanger rail abnormality determination step during the hanger roller acceleration process is performed. FIG. 9 is a flowchart showing the hanger rail abnormality determination step during the hanger roller acceleration process in FIG. 4. In the hanger rail abnormality determination step during the hanger roller acceleration process, first, in step S501, the abnormality detection device 9 determines whether there is any disturbance in the change amount R4 of the first hanger roller rotation speed during the acceleration process.

[0152] In step S501, when the abnormality detection device 9 determines that there is no disturbance in the change amount R4 of the first hanger roller rotation speed during the acceleration process, the process of the hanger rail abnormality determination step during the hanger roller acceleration process proceeds to step S504.

[0153] On the other hand, in step S501, when the abnormality detection device 9 determines that there is a disturbance in the change amount R4 of the first hanger roller rotation speed during the acceleration process, the process of the hanger rail abnormality determination step during the hanger roller acceleration process proceeds to step S502.

[0154] In step S502, 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. Thereafter, a signal indicating 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 is input from the abnormality detection device 9 to the remote monitoring device 3 via the elevator control panel 2. Thereafter, the process of the hanger roller acceleration process hanger rail abnormality determination step proceeds to step S503.

[0155] In step S503, the remote monitoring device 3 reports to the information center 4 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. Thereafter, the process of the hanger roller acceleration process hanger rail abnormality determination step proceeds to step S504.

[0156] In step S504, the abnormality detection device 9 determines whether there is any disturbance in the change amount R6 of the rotation speed of the second hanger roller during the acceleration process.

[0157] In step S504, when the abnormality detection device 9 determines that there is no disturbance in the change amount R6 of the rotation speed of the second hanger roller during the acceleration process, the process of the hanger roller acceleration process hanger rail abnormality determination step proceeds to step S507.

[0158] On the other hand, in step S504, when the abnormality detection device 9 determines that there is a disturbance in the change amount R6 of the rotation speed of the second hanger roller during the acceleration process, the process of the hanger roller acceleration process hanger rail abnormality determination step proceeds to step S505.

[0159] In step S505, 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. Then, a signal indicating 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 is input from the abnormality detection device 9 to the remote monitoring device 3 via the elevator control panel 2. Then, the process of the hanger roller acceleration process hanger rail abnormality determination step proceeds to step S506.

[0160] In step S506, the remote monitoring device 3 reports to the information center 4 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. Then, the process of the hanger roller acceleration process hanger rail abnormality determination step proceeds to step S507.

[0161] In step S507, the abnormality detection device 9 determines whether there is any disturbance in the change amount R8 of the rotation speed of the third hanger roller during the acceleration process.

[0162] In step S507, when the abnormality detection device 9 determines that there is no disturbance in the change amount R8 of the rotation speed of the third hanger roller during the acceleration process, the process of the hanger roller acceleration process hanger rail abnormality determination step proceeds to step S510.

[0163] On the other hand, in step S507, when the abnormality detection device 9 determines that there is a disturbance in the change amount R8 of the rotation speed of the third hanger roller during the acceleration process, the process of the hanger roller acceleration process hanger rail abnormality determination step proceeds to step S508.

[0164] In step S508, 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. Then, a signal indicating 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 is input from the abnormality detection device 9 to the remote monitoring device 3 via the elevator control panel 2. Then, the process of the hanger roller acceleration process hanger rail abnormality determination step proceeds to step S509.

[0165] In step S509, the remote monitoring device 3 reports to the information center 4 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. Then, the process of the hanger roller acceleration process hanger rail abnormality determination step proceeds to step S510.

[0166] In step S510, the abnormality detection device 9 determines whether there is any disturbance in the change amount R10 of the rotation speed of the fourth hanger roller during the acceleration process.

[0167] If, in step S510, the abnormality detection device 9 determines that there is no disturbance in the change amount R10 of the rotation speed of the fourth hanger roller during the acceleration process, the hanger roller acceleration process hanger rail abnormality determination step ends.

[0168] On the other hand, if, in step S510, the abnormality detection device 9 determines that there is a disturbance in the change amount R10 of the rotation speed of the fourth hanger roller during the acceleration process, the process of the hanger roller acceleration process hanger rail abnormality determination step proceeds to step S511.

[0169] In step S511, 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. Then, a signal indicating 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 is input from the abnormality detection device 9 to the remote monitoring device 3 via the elevator control panel 2. Then, the process of the hanger roller acceleration process hanger rail abnormality determination step proceeds to step S512.

[0170] In step S512, the remote monitoring device 3 reports to the information center 4 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. Then, the hanger roller acceleration process hanger rail abnormality determination step ends.

[0171] After the hanger roller acceleration process hanger rail abnormality determination step ends, the process of 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. FIG. 10 is a flowchart showing the hanger roller constant speed process hanger rail abnormality determination step of FIG. 4. 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 any disturbance in the actually measured rotation speed M5 of the first hanger roller.

[0172] If in step S601, the abnormality detection device 9 determines that there is no disturbance in the actually measured rotation speed M5 of the first hanger roller, the process of the hanger roller constant speed process hanger rail abnormality determination step proceeds to step S604.

[0173] On the other hand, if in step S601, the abnormality detection device 9 determines that there is a disturbance in the actually measured rotation speed M5 of the first hanger roller, the process of the hanger roller constant speed process hanger rail abnormality determination step proceeds to step S602.

[0174] In step S602, 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 constant speed process of the first hanger roller 117. Then, a signal indicating that there is an abnormality in the door rail 110 on which the first hanger roller 117 rolls during the constant speed process of 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. Then, the process of the hanger roller constant speed process hanger rail abnormality determination step proceeds to step S603.

[0175] In step S603, the remote monitoring device 3 reports to the information center 4 that there is an abnormality in the door rail 110 on which the first hanger roller 117 rolls during the constant speed process of the first hanger roller 117. Then, the process of the hanger roller constant speed process hanger rail abnormality determination step proceeds to step S604.

[0176] In step S604, the abnormality detection device 9 determines whether there is any disturbance in the actually measured rotation speed M6 of the second hanger roller.

[0177] If in step S604, the abnormality detection device 9 determines that there is no disturbance in the actually measured rotation speed M6 of the second hanger roller, the process of the hanger roller constant speed process hanger rail abnormality determination step proceeds to step S607.

[0178] On the other hand, if in step S604, the abnormality detection device 9 determines that there is a disturbance in the actually measured rotation speed M6 of the second hanger roller, the process of the hanger roller constant speed process hanger rail abnormality determination step proceeds to step S605.

[0179] In step S605, 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 constant speed process of the second hanger roller 118. Then, a signal indicating that there is an abnormality in the door rail 110 on which the second hanger roller 118 rolls during the constant speed process of 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. Then, the process of the hanger roller constant speed process hanger rail abnormality determination step proceeds to step S606.

[0180] In step S606, the remote monitoring device 3 reports to the information center 4 that there is an abnormality in the door rail 110 on which the second hanger roller 118 rolls during the constant speed process of the second hanger roller 118. Then, the process of the hanger roller constant speed process hanger rail abnormality determination step proceeds to step S607.

[0181] In step S607, the abnormality detection device 9 determines whether there is any disturbance in the actually measured rotation speed M7 of the third hanger roller.

[0182] In step S607, when the abnormality detection device 9 determines that there is no disturbance in the actually measured rotation speed M7 of the third hanger roller, the process of the hanger roller constant speed process hanger rail abnormality determination step proceeds to step S610.

[0183] On the other hand, in step S607, when the abnormality detection device 9 determines that there is a disturbance in the actually measured rotation speed M7 of the third hanger roller, the process of the hanger roller constant speed process hanger rail abnormality determination step proceeds to step S608.

[0184] In step S608, 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 constant speed process of the third hanger roller 119. Then, a signal indicating that there is an abnormality in the door rail 110 on which the third hanger roller 119 rolls during the constant speed process of 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. Then, the process of the hanger roller constant speed process hanger rail abnormality determination step proceeds to step S609.

[0185] In step S609, the remote monitoring device 3 reports to the information center 4 that there is an abnormality in the door rail 110 on which the third hanger roller 119 rolls during the constant speed process of the third hanger roller 119. Then, the process of the hanger roller constant speed process hanger rail abnormality determination step proceeds to step S610.

[0186] In step S610, the abnormality detection device 9 determines whether there is a disturbance in the actually measured rotation speed M8 of the fourth hanger roller.

[0187] If in step S610, the abnormality detection device 9 determines that there is no disturbance in the actually measured rotation speed M8 of the fourth hanger roller, the hanger roller constant speed process hanger rail abnormality determination step ends.

[0188] On the other hand, if in step S610, the abnormality detection device 9 determines that there is a disturbance in the actually measured rotation speed M8 of the fourth hanger roller, the process of the hanger roller constant speed process hanger rail abnormality determination step proceeds to step S611.

[0189] In step S611, 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 constant speed process of the fourth hanger roller 120. Then, a signal indicating that there is an abnormality in the door rail 110 on which the fourth hanger roller 120 rolls during the constant speed process of 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. Then, the process of the hanger roller constant speed process hanger rail abnormality determination step proceeds to step S612.

[0190] In step S612, the remote monitoring device 3 reports to the information center 4 that there is an abnormality in the door rail 110 on which the fourth hanger roller 120 rolls during the constant speed process of the fourth hanger roller 120. Then, the hanger roller constant speed process hanger rail abnormality determination step ends.

[0191] After the hanger roller constant speed process hanger rail abnormality determination step ends, the process of the elevator door device system proceeds to step S7. In step S7, the hanger roller deceleration process hanger rail abnormality determination step is performed. FIG. 11 is a flowchart showing the hanger roller deceleration process hanger rail abnormality determination step of FIG. 4. In the hanger roller deceleration process hanger rail abnormality determination step, first, in step S701, the abnormality detection device 9 determines whether there is any disturbance in the change amount R5 of the rotation speed of the first hanger roller during the deceleration process.

[0192] If in step S701, the abnormality detection device 9 determines that there is no disturbance in the change amount R5 of the rotation speed of the first hanger roller during the deceleration process, the process of the hanger roller deceleration process hanger rail abnormality determination step proceeds to step S704.

[0193] On the other hand, if in step S701, the abnormality detection device 9 determines that there is a disturbance in the change amount R5 of the rotation speed of the first hanger roller during the deceleration process, the process of the hanger roller deceleration process hanger rail abnormality determination step proceeds to step S702.

[0194] In step S702, 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. Thereafter, a signal indicating 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 is input from the abnormality detection device 9 to the remote monitoring device 3 via the elevator control panel 2. Thereafter, the process of the hanger roller deceleration process hanger rail abnormality determination step proceeds to step S703.

[0195] In step S703, the remote monitoring device 3 reports to the information center 4 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. Thereafter, the process of the hanger roller deceleration process hanger rail abnormality determination step proceeds to step S704.

[0196] In step S704, the abnormality detection device 9 determines whether there is any disturbance in the change amount R7 of the rotation speed of the second hanger roller during the deceleration process.

[0197] In step S704, when the abnormality detection device 9 determines that there is no disturbance in the change amount R7 of the rotation speed of the second hanger roller during the deceleration process, the process of the hanger roller deceleration process hanger rail abnormality determination step proceeds to step S707.

[0198] On the other hand, in step S704, when the abnormality detection device 9 determines that there is a disturbance in the change amount R7 of the rotation speed of the second hanger roller during the deceleration process, the process of the hanger roller deceleration process hanger rail abnormality determination step proceeds to step S705.

[0199] In step S705, 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. Then, a signal indicating 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 is input from the abnormality detection device 9 to the remote monitoring device 3 via the elevator control panel 2. Then, the process of the hanger roller deceleration process hanger rail abnormality determination step proceeds to step S706.

[0200] In step S706, the remote monitoring device 3 reports to the information center 4 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. Then, the process of the hanger roller deceleration process hanger rail abnormality determination step proceeds to step S707.

[0201] In step S707, the abnormality detection device 9 determines whether there is any disturbance in the change amount R9 of the rotational speed of the third hanger roller during the deceleration process.

[0202] In step S707, when the abnormality detection device 9 determines that there is no disturbance in the change amount R9 of the rotational speed of the third hanger roller during the deceleration process, the process of the hanger roller deceleration process hanger rail abnormality determination step proceeds to step S710.

[0203] On the other hand, in step S707, when the abnormality detection device 9 determines that there is a disturbance in the change amount R9 of the rotational speed of the third hanger roller during the deceleration process, the process of the hanger roller deceleration process hanger rail abnormality determination step proceeds to step S708.

[0204] In step S708, 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. Then, a signal indicating 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 is input from the abnormality detection device 9 to the remote monitoring device 3 via the elevator control panel 2. Then, the process of the hanger roller deceleration process hanger rail abnormality determination step proceeds to step S709.

[0205] In step S709, the remote monitoring device 3 reports to the information center 4 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. Then, the process of the hanger roller deceleration process hanger rail abnormality determination step proceeds to step S710.

[0206] In step S710, the abnormality detection device 9 determines whether there is any disturbance in the change amount R11 of the rotation speed of the fourth hanger roller during the deceleration process.

[0207] If, in step S710, the abnormality detection device 9 determines that there is no disturbance in the change amount R11 of the rotation speed of the fourth hanger roller during the deceleration process, the hanger roller deceleration process hanger rail abnormality determination step ends.

[0208] On the other hand, if, in step S710, the abnormality detection device 9 determines that there is a disturbance in the change amount R11 of the rotation speed of the fourth hanger roller during the deceleration process, the process of the hanger roller deceleration process hanger rail abnormality determination step proceeds to step S711.

[0209] In step S711, 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. Then, a signal indicating 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 is input from the abnormality detection device 9 to the remote monitoring device 3 via the elevator control panel 2. Then, the process of the hanger roller deceleration process hanger rail abnormality determination step proceeds to step S712.

[0210] In step S712, the remote monitoring device 3 reports to the information center 4 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. Then, the hanger roller deceleration process hanger rail abnormality determination step ends.

[0211] After the hanger roller deceleration hanger rail abnormality determination step ends, the process of the elevator door device system proceeds to step S8. In step S8, a hanger roller wear replacement determination step is performed. FIG. 12 is a flowchart showing the hanger roller wear replacement determination step of FIG. 4. In the hanger roller wear replacement determination step, first, in step S801, the abnormality detection device 9 determines whether the actually measured rotation speed M5 of the first hanger roller exceeds the reference hanger roller wear rotation speed R12.

[0212] If in step S801, the abnormality detection device 9 determines that the actually measured rotation speed M5 of the first hanger roller 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.

[0213] On the other hand, if in step S801, the abnormality detection device 9 determines that the actually measured rotation speed M5 of the first hanger roller exceeds the reference hanger roller wear rotation speed R12, the process of the hanger roller wear replacement determination step proceeds to step S802.

[0214] In step S802, the abnormality detection device 9 determines that the first hanger roller 117 needs to be replaced due to wear. After that, a 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. Then, the process of the hanger roller wear replacement determination step proceeds to step S803.

[0215] 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.

[0216] In step S804, the abnormality detection device 9 determines whether the actually measured rotation speed M6 of the second hanger roller exceeds the reference hanger roller wear rotation speed R12.

[0217] In step S804, if the abnormality detection device 9 determines that the actually measured rotation speed M6 of the second hanger roller 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.

[0218] On the other hand, in step S804, if the abnormality detection device 9 determines that the actually measured rotation speed M6 of the second hanger roller exceeds the reference hanger roller wear rotation speed R12, the process of the hanger roller wear replacement determination step proceeds to step S805.

[0219] In step S805, the abnormality detection device 9 determines that the second hanger roller 118 needs to be replaced due to wear. After that, a 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. Then, the process of the hanger roller wear replacement determination step proceeds to step S806.

[0220] 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. After that, the process of the hanger roller wear replacement determination step proceeds to step S807.

[0221] In step S807, the abnormality detection device 9 determines whether the actually measured rotation speed M7 of the third hanger roller exceeds the reference hanger roller wear rotation speed R12.

[0222] In step S807, if the abnormality detection device 9 determines that the actually measured rotation speed M7 of the third hanger roller 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.

[0223] On the other hand, in step S807, if the abnormality detection device 9 determines that the actually measured rotation speed M7 of the third hanger roller exceeds the reference hanger roller wear rotation speed R12, the process of the hanger roller wear replacement determination step proceeds to step S808.

[0224] In step S808, the abnormality detection device 9 determines that the third hanger roller 119 needs to be replaced due to wear. After that, a 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. After that, the process of the hanger roller wear replacement determination step proceeds to step S809.

[0225] 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. After that, the process of the hanger roller wear replacement determination step proceeds to step S810.

[0226] In step S810, the abnormality detection device 9 determines whether the actually measured rotation speed M8 of the fourth hanger roller exceeds the reference hanger roller wear rotation speed R12.

[0227] In step S810, when the abnormality detection device 9 determines that the actually measured rotation speed M8 of the fourth hanger roller does not exceed the reference hanger roller wear rotation speed R12, the hanger roller wear replacement determination process ends.

[0228] On the other hand, in step S810, when the abnormality detection device 9 determines that the actually measured rotation speed M8 of the fourth hanger roller exceeds the reference hanger roller wear rotation speed R12, the process of the hanger roller wear replacement determination process proceeds to step S811.

[0229] In step S811, the abnormality detection device 9 determines that the fourth hanger roller 120 needs to be replaced due to wear. After that, a 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. After that, the process of the hanger roller wear replacement determination process proceeds to step S812.

[0230] 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. After that, the hanger roller wear replacement determination process ends.

[0231] When the hanger roller wear replacement determination process ends, the process at the time of door opening in the elevator door device system ends.

[0232] In the process at the time of door closing in the elevator door device system, the respective results measured at the time of door closing 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 are used. In the process at the time of door closing in the elevator door device system, the processes from step S1 to step S8 are sequentially performed in the same manner as the process at the time of door opening in the elevator door device system.

[0233] As described above, the elevator door apparatus 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, and an abnormality detecting 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 detecting device 9 detects an abnormality of the drive motor 101 using the measurement result of the first rotation speed measuring device 5. Further, the abnormality detecting device 9 detects an abnormality of the drive pulley 104, the drive belt 105, and the driven pulley 106 using the measurement result of the first rotation speed measuring device 5 and the measurement result of the second rotation speed measuring device 6. Further, the abnormality detecting device 9 detects an abnormality of the drive roller 107, the interlocking rope 108, and the driven roller 109 using the measurement result of the second rotation speed measuring device 6 and the measurement result of the third rotation speed measuring device 7. According to this configuration, it is possible to detect an abnormality of the drive motor 101, an abnormality of the drive pulley 104, the drive belt 105, and the driven pulley 106, and an abnormality of the drive roller 107, the interlocking rope 108, and the driven roller 109.

[0234] Further, the abnormality detecting 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 of the drive motor 101. According to this configuration, it is possible to detect an abnormality of the drive motor 101 with a simple configuration.

[0235] Further, the abnormality detecting device 9 predicts the rotation speed of the driven pulley 106 from the rotation speed of the drive pulley 104 measured by the first rotation speed measuring device 5. Further, the abnormality detecting device 9 compares the predicted rotation speed of the driven pulley 106 with the rotation speed of the driven pulley 106 measured by the second rotation speed measuring device 6 to detect an abnormality of the drive pulley 104, the drive belt 105, and the driven pulley 106. According to this configuration, it is possible to detect an abnormality of the drive pulley 104, the drive belt 105, and the driven pulley 106 with a simple configuration.

[0236] Further, the abnormality detection device 9 compares the rotational speed of the drive roller 107 measured by the second rotational speed measurement device 6 with the rotational speed of the driven roller 109 measured by the third rotational speed measurement device 7, and detects abnormalities in the drive roller 107, the interlocking rope 108, and the driven roller 109. According to this configuration, abnormalities in the drive roller 107, the interlocking rope 108, and the driven roller 109 can be detected with a simple configuration.

[0237] Moreover, the elevator door system according to Embodiment 1 includes a fourth rotational speed measurement device 8. The fourth rotational speed measurement device 8 measures the rotational speed of the first hanger roller 117. The abnormality detection device 9 uses the measurement result of the second rotational speed measurement device 6 or the measurement result of the third rotational speed measurement device 7 and the measurement result of the fourth rotational speed measurement device 8 to detect an abnormality in the first hanger roller 117. According to this configuration, an abnormality in the first hanger roller 117 can be detected. Further, the fourth rotational speed measurement device 8 measures the rotational speed of the second hanger roller 118. The abnormality detection device 9 uses the measurement result of the second rotational speed measurement device 6 or the measurement result of the third rotational speed measurement device 7 and the measurement result of the fourth rotational speed measurement device 8 to detect an abnormality in the second hanger roller 118. According to this configuration, an abnormality in the second hanger roller 118 can be detected. Further, the fourth rotational speed measurement device 8 measures the rotational speed of the third hanger roller 119. The abnormality detection device 9 uses the measurement result of the second rotational speed measurement device 6 or the measurement result of the third rotational speed measurement device 7 and the measurement result of the fourth rotational speed measurement device 8 to detect an abnormality in the third hanger roller 119. According to this configuration, an abnormality in the third hanger roller 119 can be detected. Further, the fourth rotational speed measurement device 8 measures the rotational speed of the fourth hanger roller 120. The abnormality detection device 9 uses the measurement result of the second rotational speed measurement device 6 or the measurement result of the third rotational speed measurement device 7 and the measurement result of the fourth rotational speed measurement device 8 to detect an abnormality in the fourth hanger roller 120. According to this configuration, an abnormality in the fourth hanger roller 120 can be detected.

[0238] Further, the abnormality detection device 9 predicts the rotation speed of the first hanger roller 117 from the rotation speed of the drive roller 107 measured by the second rotation speed measurement device 6 or the rotation speed of the driven roller 109 measured by the third rotation speed measurement device 7. Further, the abnormality detection device 9 compares the predicted rotation speed of the first hanger roller 117 with the rotation speed of the first hanger roller 117 measured by the fourth rotation speed measurement device 8 to detect an abnormality of the first hanger roller 117. According to this configuration, an abnormality of the first hanger roller 117 can be detected with a simple configuration. Further, the abnormality detection device 9 predicts the rotation speed of the second hanger roller 118 from the rotation speed of the drive roller 107 measured by the second rotation speed measurement device 6 or the rotation speed of the driven roller 109 measured by the third rotation speed measurement device 7. Further, the abnormality detection device 9 compares the predicted rotation speed of the second hanger roller 118 with the rotation speed of the second hanger roller 118 measured by the fourth rotation speed measurement device 8 to detect an abnormality of the second hanger roller 118. According to this configuration, an abnormality of the second hanger roller 118 can be detected with a simple configuration. Further, the abnormality detection device 9 predicts the rotation speed of the third hanger roller 119 from the rotation speed of the drive roller 107 measured by the second rotation speed measurement device 6 or the rotation speed of the driven roller 109 measured by the third rotation speed measurement device 7. Further, the abnormality detection device 9 compares the predicted rotation speed of the third hanger roller 119 with the rotation speed of the third hanger roller 119 measured by the fourth rotation speed measurement device 8 to detect an abnormality of the third hanger roller 119. According to this configuration, an abnormality of the third hanger roller 119 can be detected with a simple configuration. Further, the abnormality detection device 9 predicts the rotation speed of the fourth hanger roller 120 from the rotation speed of the drive roller 107 measured by the second rotation speed measurement device 6 or the rotation speed of the driven roller 109 measured by the third rotation speed measurement device 7. Further, the abnormality detection device 9 compares the predicted rotation speed of the fourth hanger roller 120 with the rotation speed of the fourth hanger roller 120 measured by the fourth rotation speed measurement device 8 to detect an abnormality of the fourth hanger roller 120. According to this configuration, an abnormality of the fourth hanger roller 120 can be detected with a simple configuration.

[0239] Further, the abnormality detection device 9 calculates the change amount of the rotation speed of the first hanger roller 117 per unit time in the acceleration process or deceleration process of the first hanger roller 117 from the measured rotation speed of the first hanger roller 117. Further, the abnormality detection device 9 uses the calculated change amount of the rotation speed of the first hanger roller 117 to detect an abnormality of the door rail 110 on which the first hanger roller 117 rolls in the acceleration process or deceleration process of the first hanger roller 117. According to this configuration, it is possible to detect an abnormality of the door rail 110 on which the first hanger roller 117 rolls in the acceleration process or deceleration process of the first hanger roller 117. Further, the abnormality detection device 9 calculates the change amount of the rotation speed of the second hanger roller 118 per unit time in the acceleration process or deceleration process of the second hanger roller 118 from the measured rotation speed of the second hanger roller 118. Further, the abnormality detection device 9 uses the calculated change amount of the rotation speed of the second hanger roller 118 to detect an abnormality of the door rail 110 on which the second hanger roller 118 rolls in the acceleration process or deceleration process of the second hanger roller 118. According to this configuration, it is possible to detect an abnormality of the door rail 110 on which the second hanger roller 118 rolls in the acceleration process or deceleration process of the second hanger roller 118. Further, the abnormality detection device 9 calculates the change amount of the rotation speed of the third hanger roller 119 per unit time in the acceleration process or deceleration process of the third hanger roller 119 from the measured rotation speed of the third hanger roller 119. Further, the abnormality detection device 9 uses the calculated change amount of the rotation speed of the third hanger roller 119 to detect an abnormality of the door rail 110 on which the third hanger roller 119 rolls in the acceleration process or deceleration process of the third hanger roller 119. According to this configuration, it is possible to detect an abnormality of the door rail 110 on which the third hanger roller 119 rolls in the acceleration process or deceleration process of the third hanger roller 119. Further, the abnormality detection device 9 calculates the change amount of the rotation speed of the fourth hanger roller 120 per unit time in the acceleration process or deceleration process of the fourth hanger roller 120 from the measured rotation speed of the fourth hanger roller 120.Further, the abnormality detection device 9 uses the calculated change amount of the rotation speed of the fourth hanger roller 120 to detect an abnormality of the door rail 110 on which the fourth hanger roller 120 rolls during the acceleration process or the deceleration process of the fourth hanger roller 120. According to this configuration, it is possible to detect an abnormality of the door rail 110 on which the fourth hanger roller 120 rolls during the acceleration process or the deceleration process of the fourth hanger roller 120.

[0240] Further, the abnormality detection device 9 uses the measured rotation speed of the first hanger roller 117 to detect an abnormality of the door rail 110 on which the first hanger roller 117 rolls during the constant speed process of the first hanger roller 117. According to this configuration, it is possible to detect an abnormality of the door rail 110 on which the first hanger roller 117 rolls during the constant speed process of the first hanger roller 117. Further, the abnormality detection device 9 uses the measured rotation speed of the second hanger roller 118 to detect an abnormality of the door rail 110 on which the second hanger roller 118 rolls during the constant speed process of the second hanger roller 118. According to this configuration, it is possible to detect an abnormality of the door rail 110 on which the second hanger roller 118 rolls during the constant speed process of the second hanger roller 118. Further, the abnormality detection device 9 uses the measured rotation speed of the third hanger roller 119 to detect an abnormality of the door rail 110 on which the third hanger roller 119 rolls during the constant speed process of the third hanger roller 119. According to this configuration, it is possible to detect an abnormality of the door rail 110 on which the third hanger roller 119 rolls during the constant speed process of the third hanger roller 119. Further, the abnormality detection device 9 uses the measured rotation speed of the fourth hanger roller 120 to detect an abnormality of the door rail 110 on which the fourth hanger roller 120 rolls during the constant speed process of the fourth hanger roller 120. According to this configuration, it is possible to detect an abnormality of the door rail 110 on which the fourth hanger roller 120 rolls during the constant speed process of the fourth hanger roller 120.

[0241] Further, the abnormality detection device 9 detects that the first hanger roller 117 needs to be replaced due to wear using the measurement result of the fourth rotational speed measurement device 8. According to 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. Also, the abnormality detection device 9 detects that the second hanger roller 118 needs to be replaced due to wear using the measurement result of the fourth rotational speed measurement device 8. According to 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. Also, the abnormality detection device 9 detects that the third hanger roller 119 needs to be replaced due to wear using the measurement result of the fourth rotational speed measurement device 8. According to 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. Also, the abnormality detection device 9 detects that the fourth hanger roller 120 needs to be replaced due to wear using the measurement result of the fourth rotational speed measurement device 8. 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.

[0242] In the elevator door device system according to the first embodiment, the configuration of the fourth rotational speed measurement device 8 including the first hanger roller rotational speed measurement unit 801, the second hanger roller rotational speed measurement unit 802, the third hanger roller rotational speed measurement unit 803, and the fourth hanger roller rotational speed measurement unit 804 has been described. However, the fourth rotational speed measurement device 8 may have a configuration including at least one of the first hanger roller rotational speed measurement unit 801, the second hanger roller rotational speed measurement unit 802, the third hanger roller rotational speed measurement unit 803, and the fourth hanger roller rotational speed measurement unit 804.

Explanation of Reference Numerals

[0243] 1 Elevator door device, 2 Elevator control panel, 3 Remote monitoring device, 4 Information center, 5 First rotational speed measurement device, 6 Second rotational speed measurement device, 7 Third rotational speed measurement device, 8 Fourth rotational speed measurement device, 9 Abnormality detection device, 101 Drive motor, 102 Door control device, 103 Hanger case, 104 Drive pulley, 105 Drive belt, 106 Driven pulley, 107 Drive roller, 108 Interlocking rope, 109 Driven roller, 110 Door rail, 111 First car door, 112 Second car door, 113 First door hanger (door hanger), 114 Second door hanger (door hanger), 115 First connecting member, 116 Second connecting member, 117 First hanger roller (hanger roller), 118 Second hanger roller (hanger roller), 119 Third hanger roller (hanger roller), 120 Fourth hanger roller (hanger roller), 801 First hanger roller rotational speed measurement section, 802 Second hanger roller rotational speed measurement section, 803 Third hanger roller rotational speed measurement section, 804 Fourth hanger roller rotational speed measurement section.

Claims

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

2. The elevator door device system according to claim 1, wherein the abnormality detection device detects an abnormality of the drive motor by comparing the rotational speed of the drive pulley measured by the first rotational speed measuring device with a preset reference drive pulley rotational speed.

3. The elevator door device system according to claim 1 or claim 2, wherein the abnormality detection device predicts the rotational speed of the driven pulley from the rotational speed of the drive pulley measured by the first rotational speed measuring device, and 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 to detect an abnormality of the drive pulley, the drive belt, and the driven pulley.

4. The elevator door device system according to claim 1 or claim 2, wherein the abnormality detection device detects an abnormality of the drive roller, the interlocking rope, and the driven roller by comparing the rotational speed of the drive roller measured by the second rotational speed measuring device with the rotational speed of the driven roller measured by the third rotational speed measuring device.

5. Further comprising a fourth rotational speed measuring device for measuring the rotational speed of a hanger roller provided on a door hanger connected to the interlocking rope. The abnormality detection device detects an abnormality of the hanger roller by using the measurement result of the second rotational speed measuring device or the measurement result of the third rotational speed measuring device and the measurement result of the fourth rotational speed measuring device. The elevator door device system according to claim 1 or claim 2.

6. The abnormality detection device predicts the rotational speed of the hanger roller from 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 an abnormality of the hanger roller. The elevator door device system according to claim 5.

7. The abnormality detection device calculates a change amount of the rotational speed of the hanger roller per unit time in an acceleration process or a deceleration process of the moving path of the hanger roller from the measured rotational speed of the hanger roller, and uses the calculated change amount of the rotational speed of the hanger roller to detect an abnormality of a hanger rail on which the hanger roller rolls in the acceleration process or the deceleration process. The elevator door device system according to claim 5.

8. The abnormality detection device uses the measured rotational speed of the hanger roller to detect an abnormality of a hanger rail on which the hanger roller rolls in a constant speed process of the moving path of the hanger roller. The elevator door device system according to claim 5.

9. The abnormality detection device uses the measurement result of the fourth rotational speed measuring device to detect that the hanger roller needs to be replaced due to wear. The elevator door device system according to claim 5.

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