JP6549065B2 - Elevator apparatus and program - Google Patents

Description

  The present invention relates to an elevator apparatus and program in which a car moves up and down in a hoistway, and more particularly to a technique for detecting a failure of a position detector attached to the car.

  The elevator car is equipped with a door zone where passengers can get on and off and a position detector that detects the absolute position of the car. DESCRIPTION OF RELATED ART Conventionally, the control apparatus of the elevator described in patent document 1 is known as what detects the failure of a position detector.

  The elevator control device described in Patent Document 1 comprises counting means for counting pulses synchronized with the number of revolutions of the motor driving the car, and car movement for calculating the elevation movement amount of the car based on the output of the counting means. An amount calculating means is provided. Also, the elevator control device is installed in the car, and represents the current position of the car based on the position of the detection plate installed in the hoistway corresponding to the plurality of floors as the car moves up and down. And position detection means for outputting a detection signal of Further, the control device of the elevator is a detection section movement amount calculation means for calculating the detection section movement amount of the car while the detection signal is output based on the output of the counting means, and the elevation movement amount and the detection section A failure determination unit that determines a failure of the position detection unit based on the movement amount is provided.

JP-A-5-51183 (eg, paragraph [0013])

  In the elevator control device described in Patent Document 1, failure of the position detection means depends on whether the movement amount of the car (detection movement amount) in the off section where the position detection means does not detect the detection plate is equal to or greater than a specified value. Determine Since this specified value is defined by the distance from the floor, it is necessary to appropriately set the installation interval of the detection plate that determines the off section. Therefore, the installation interval (installation position) of the detection plate is limited.

  An object of the present invention is to detect a failure of a position detector without limiting the installation position of a position detection member such as a detection plate for detecting the position of a car in view of the above situation.

An elevator apparatus according to one aspect of the present invention includes a signal generator that outputs a signal according to the rotation of a rotating body that rotates in accordance with the vertical movement of a car on which a rope connected with a car and a rope is wound; And a car position detection circuit for detecting an amount of movement of the car from the departure floor based on a signal output from the controller. The elevator apparatus includes a position detection member provided on the wall of the hoistway corresponding to the floor, a position detector provided on the car for detecting the position detection member, a floor and a reference floor. And a height storage unit storing the relationship of the heights of Further, this elevator apparatus is based on the amount of movement of the car from the departure floor detected by the car position detection circuit and the relationship between the floor stored in the height storage unit and the height from the reference floor. A floor detection circuit is provided to detect the current floor of the car . Also, the elevator system is based on the number of floors detection circuit and obtains the detection result of the position detector, a position detecting member for the number of floors and the position detector is the car moves is detected, the position detection And a failure determination circuit that determines a failure of the controller. Furthermore, the elevator apparatus includes, as a rotating body, a sheave on which a speed control rope connected with a rider is wound, and a main rope connected with a rider with a hoist, which moves a car up and down. A signal generator, a first signal generator that detects the rotation of the sheave and outputs a signal according to the rotation, and a second signal generator that outputs a signal according to the rotation of the hoist And. The relationship between the floor stored in the height storage unit and the height from the reference floor is measured using the second signal generator, and the car position detection circuit outputs the signal output from the first signal generator. The floor detection circuit detects an amount of movement of the car from the departure floor detected by the car position detection circuit, and the floor stored in the height storage unit. The current floor of the car is detected based on the relationship between the floor and the height from the reference floor.

According to at least one aspect of the present invention, it is possible to detect a failure of the position detector that detects the position detection member without setting restrictions on the installation position of the position detection member for detecting the position of the car.
Problems, configurations, and effects other than those described above will be apparent from the description of the embodiments below.

BRIEF DESCRIPTION OF THE DRAWINGS It is the schematic which shows the whole structural example of the elevator apparatus which concerns on the 1st Embodiment of this invention. It is an explanatory view showing composition of a height table stored in height memory concerning a 1st embodiment of the present invention. It is a flow chart which shows position detector failure detection processing concerning a 1st embodiment of the present invention. It is explanatory drawing of failure determination of step S3 of FIG. It is a figure which shows the modification of arrangement | positioning of the floor which concerns on the 1st Embodiment of this invention, and a position detection board. It is the schematic which shows the example of a whole structure of the elevator apparatus which concerns on the 2nd Embodiment of this invention. It is the schematic which shows the example of a whole structure of the elevator apparatus which concerns on the 3rd Embodiment of this invention. It is explanatory drawing which shows arrangement | positioning of the floor which concerns on the 4th Embodiment of this invention, and a position detection board. It is an explanatory view showing arrangement of a position detection board concerning a 4th embodiment of the present invention, and a position detector. It is a block diagram showing the example of hardware constitutions of a computer.

  Hereinafter, examples of modes for carrying out the present invention will be described with reference to the attached drawings. In addition, about the component which has a substantially the same function or structure in each figure, the same code | symbol is attached | subjected and the overlapping description is abbreviate | omitted.

<1. First embodiment>
[Overall configuration of elevator apparatus]
FIG. 1 is a schematic view showing an entire configuration example of an elevator apparatus according to a first embodiment of the present invention. FIG. 1 also shows the configuration of a block for detecting a failure of the position detector 7 for specifying the position of the car 1. In FIG. 1, an elevating direction of the car 1 of the elevator apparatus 100 is an X direction, a direction perpendicular to the X direction is a Y direction, and a direction perpendicular to the X direction and the Y direction is a Z direction.

  In the elevator apparatus 100, a car 1 (lifting body) is connected to a counterweight 3 via a main rope 2 in a hoistway 4 provided in a building 101, and the car 1 is a guide rail (not shown). It is configured to be able to move up and down along the A machine room (not shown) is provided above the hoistway 4 (outside the hoistway).

  In the machine room, a hoist 5 (an example of a rotating body) on which a main rope 2 for moving the car 1 up and down is wound, a sheave 9a of an governor 9 (an example of a rotating body), etc. ing. The elevating movement of the car 1 is performed by driving the motor 5M of the hoisting machine 5. The hoisting machine 5 is controlled to rotate in accordance with the vertical movement of the car 1. The winding machine 5 is attached with a pulse generator 6 (an example of a second signal generator) which outputs a pulse signal according to the rotation of the motor 5M of the winding machine 5. From the pulse signal output from the pulse generator 6 by the rotation of the motor 5M, the rotational speed of the motor 5M, the equivalent (meaning not necessarily accurate) position of the car 1, movement distance of the car 1, etc. Ru. For example, a rotary encoder is used for the pulse generator.

  The speed governor 9 includes an endless speed control rope 10 connected to the car 1 and stretched over the entire traveling stroke (lifting and lowering stroke) of the car 1 in the hoistway 4. The speed control rope 10 is wound around a sheave 9 a installed in a machine room and a sheave 9 b which is a governor weight installed at the lower part of the hoistway 4. The sheave 9 a is a rotating body that rotates in conjunction with (traveling with) the travel of the car 1. The sheave 9 a is rotatably attached to the building 101. The speed governor 9 includes a rotation detector 11 (an example of a first signal generator) which detects the rotation of the sheave 9 a and outputs a signal corresponding to the rotation. For the rotation detector 11, a transmissive or reflective photoelectric non-contact non-contact detection sensor is used. Alternatively, as the rotation detector 11, for example, a rotary encoder may be used.

  For example, in the case where the rotation detector 11 is a transmission photoelectric type, the rotation detector 11 includes a light emitting unit and a light receiving unit facing the light emitting unit. The light emitted from the light emitting unit toward the light receiving unit is blocked by the sheave 9a, and the signal output from the rotation detector 11 is switched on / off. The rotation of the sheave 9a can be detected based on the switching (on / off) of this output signal.

  A position detector 7 is installed on the upper surface of the car 1. In the position detector 7, the position in the Z direction perpendicular to the elevating direction (X direction) of the car 1 corresponds to the position in the Z direction of the position detection plate 8 installed corresponding to each floor FL. The XZ plane is parallel to the inner wall of the building 101 (the hoistway 4).

  Position detection plates 8 are attached to the walls of the hoistway 4 (the inner wall of the building 101) corresponding to the plurality of floors FL. The position detection plate 8 (an example of a position detection member) is attached at a predetermined position corresponding to the floor FL, for example, at the same height as the height of the floor FL. The position detector 7 detects the position detection plate 8 installed on the wall of the hoistway 4 to detect the position of the car 1 in the hoistway 4.

  The position detector 7 is a non-contact type detection sensor such as a photoelectric type or a magnetic type. For example, when the position detector 7 is of the transmission type, the light emitted from the light emitting unit of the position detector 7 toward the light receiving unit is blocked by the position detection plate 8, and the position detector 7 is The output signal is switched on / off. Based on the switching (on / off) of the output signal, the position detector 7 can detect the presence / absence (passage) of the position detection plate 8 even while the car 1 is moving. The position where the position detector 7 is installed may be the side surface of the car 1 if the above conditions are satisfied.

[Control unit]
Next, the control unit 12 of the elevator apparatus 100 will be described.
The control unit 12 detects the failure of the position detector 7 and controls the operation of the elevator apparatus 100. The control unit 12 includes a floor height measurement circuit 13, a height memory 14, a car position detection circuit 15, a floor detection circuit 16, and a position detector failure determination circuit 17.

  The floor height measurement circuit 13 receives the pulse signal output from the pulse generator 6 in accordance with the rotation of the winding machine 5. Then, the car 1 is operated at low speed from the lower floor (for example, the first floor) to the uppermost floor, and the floor height measurement circuit 13 outputs a pulse signal output from the pulse generator 6 every time it passes the position detection plate 8 The distance (interval) between adjacent position detection plates 8 is calculated from the count value of the pulse signal. Further, the floor height measurement circuit 13 calculates the height (installation position) from the reference floor (for example, the first floor) of the position detection plate 8 based on the distance between the adjacent position detection plates 8 and the reference of the position detection plate 8 The height from the floor is associated with the floor FL and stored in the height memory 14.

  The work of acquiring the distance between the position detection plates 8 is performed, for example, at the time of installation of the elevator apparatus or at the time of periodic inspection. Further, by preventing the slip and extension of the main rope 2 by low speed operation, more accurate floor height data (the distance between the position detection plates 8) can be acquired.

  The height memory 14 (an example of a height storage unit) stores a height table indicating the relationship between the floor FL and the height from the reference floor. Here, the height from the reference floor is the height from the reference floor of the position detection plate 8 as described above.

Here, FIG. 2 shows the configuration of the height table stored in the height memory 14.
The records of the height table include a floor field indicating the floor on which the position detection plate 8 is installed, and a height field indicating the height of the position detection plate 8 from the reference floor. In the example of FIG. 2, the height from the reference floor of the position detection plate 8 of the first floor is 0 [m], the height to the position detection plate 8 of the second floor is 5 [m], the position detection plate 8 of the third floor The height up to 10 [m], the height to the position detection plate 8 of the N-th floor is 5 (N-1) [m]. The numerical values in FIG. 2 are an example and not limited to this example.

  The car position detection circuit 15 receives a signal output from the rotation detector 11 in accordance with the rotation of the sheave 9a. Then, the car position detection circuit 15 detects an amount of movement (car position) from the floor FL (department floor) at the start of movement of the car 1 based on the output signal of the rotation detector 11, and detects the detected result on the floor. It outputs to the floor detection circuit 16. The amount of movement (car position) from floor FL (departure floor) at the start of movement of car 1 is an absolute position in the sense that it is more accurate than the equivalent position of car 1 based on the rotation of motor 5M. .

  The floor detection circuit 16 detects the amount of movement of the car 1 from the departure floor detected by the car position detection circuit 15 and the relationship between the floor FL stored in the height memory 14 and the height from the reference floor. Based on the current floor of the car 1 (current floor) is detected. Then, the detection result is output to the position detector failure determination circuit 17.

  The position detector failure determination circuit 17 (an example of the failure determination circuit) acquires the detection results of the floor detection circuit 16 and the position detector 7 and detects the number of floors where the car 1 has moved and the position detector 7 The failure of the position detector 7 is determined based on the number of position detection plates 8. The determination of this failure will be described in detail later.

[Position detector failure detection processing]
Next, position detector failure detection processing by the control unit 12 according to the first embodiment will be described.
FIG. 3 is a flowchart showing position detector failure detection processing by the control unit 12. The position detector failure detection process shown in FIG. 3 is an example in which failure determination is performed each time the car 1 moves by two floors.

  First, when the control unit 12 starts the normal operation (high speed operation) of the car 1, the floor detection circuit 16 detects the car position detection circuit 15 (the amount of rotation of the sheave 9a) and the height table (FIG. 2) Then, identify the floor (departure floor) when the car 1 leaves. Then, the floor detection circuit 16 records the obtained floor (S1). This floor (which may be hereinafter referred to as “recording floor”) is stored in a storage area inside the floor detection circuit 16 or in a predetermined area such as the height memory 14 or the like. The floor detection circuit 16 detects the current floor of the car 1 at any time while the car 1 is traveling, and updates the current floor whenever the car 1 exceeds a predetermined position (for example, the center) of the inter-floor pitch. .

  Next, the position detector failure determination circuit 17 reads the recording floor and determines whether the current floor of the car 1 has changed from the departure floor (recording floor) to the second floor (S2). When the car 1 changes from the recording floor to the second floor (YES in S2), the position detector failure determination circuit 17 acquires the detection results of the floor detection circuit 16 and the position detector 7, and the car The failure of the position detector 7 is determined based on the number of floors moved by 1 and the number of position detection plates 8 detected by the position detector 7.

  For example, the position detector failure determination circuit 17 determines whether the position detector 7 has detected the position detection plate 8 before the current floor changes from the recording floor to the second floor (S3). Here, if the position detector 7 has detected the position detection plate 8 (YES in S3), the position detector failure determination circuit 17 instructs the floor detection circuit 16 to update the recording floor to the current floor. To do (S4).

  If the current floor of the car 1 has not changed from the recording floor to the second floor in step S2 (NO in S2), the position detector failure determination circuit 17 proceeds to step S5. For example, if the current floor of the car 1 does not change from the recording floor to the second floor even if a preset time has elapsed since the time when the car 1 departed or when the recording floor was recorded last time, the position The detector failure determination circuit 17 may determine that the second floor has not changed.

  Next, after step S4 is completed, the position detector failure determination circuit 17 determines whether or not the current floor and the destination floor match (S5), and if they match (YES in S5), the control unit 12 The car 1 is directly landed on the destination floor, and the series of processing is completed.

  If the current floor and the destination floor do not match (NO in S5), the position detector failure determination circuit 17 returns to step S2 and determines again whether or not the current floor has changed from the recording floor to the second floor. . Then, when the current floor changes from the recording floor to the second floor (YES in S2), it is checked whether or not the position detection plate 8 is detected (S3), and the car 1 is determined to reach the destination floor Keep doing.

  If the position detection plate 8 is not detected before the recording floor changes to the second floor in step S3 (NO in S3), a failure of the position detector 7 or a drop of the position detection plate 8 may be considered. Therefore, the position detector failure determination circuit 17 determines (fault detection) that the position detector 7 is a failure (S6).

  When a failure of the position detector 7 is detected, the control unit 12 stops the operation of the car 1 after the car 1 has landed on the destination floor. Then, the control unit 12 reports the failure of the position detector 7 to the monitoring center or the like, and repair, replacement, etc. of the position detector 7 are performed.

[Details of failure judgment]
Here, the failure determination in step S3 of FIG. 3 will be described in detail.
FIG. 4 is an explanatory view of the failure determination in step S3 of FIG. The range indicated by the arrow is the range of the floor FL detected by the floor detection circuit 16. Further, a position detection plate 8a is disposed on the X floor, a position detection plate 8b on the (X + 1) floor, and a position detection plate 8c on the (X + 2) floor.

  Assuming that the departure floor of the car 1 is the X floor, the floor detection circuit 16 determines that the car 1 passes the X floor and the center of the (X + 1) floor (dot and dash line) based on the output signal of the rotation detector 11. Then, the current floor of the car 1 is updated from the X floor to the (X + 1) floor. Similarly, when the car 1 passes through the centers of the (X + 1) and (X + 2) floors (one-dotted chain line), the floor detection circuit 16 sets the current floor of the car 1 from the (X + 1) floor to (X + 2). Update on the floor. At this time, at least the position detection plate 8b is always passed by the time the current floor changes from the Xth floor to the (X + 2) th floor. Therefore, when the position detector 7 does not detect any one of the position detection plates 8 before the current floor changes from the departure floor (the original recording floor) to the second floor, the position detector failure determination circuit 17 does not detect any position detection plate 8. Is determined to be a failure of the position detector 7.

  In the present embodiment, the failure determination is performed when the current floor of the car 1 changes to the second floor, but the present invention is not limited to the second floor. For example, the failure determination may be performed when the current floor of the car 1 changes to three or more floors. That is, when the position detector 7 does not detect n pieces of position detection plates 8 when the car 1 has moved by n + 1 floors (n is a natural number), the position detector failure determination circuit 17 determines the position. It is determined that the detector 7 is broken.

  Further, although the failure determination has been described on the assumption that the car 1 moves upward, the failure determination is, of course, similarly performed even when the car 1 moves downward.

  Also, the current floor is updated when passing through the center of the floor FL (position detection plate 8) with the car 1 and the other floor FL (position detection plate 8), The current floor may be updated when passing through 1/3, 1/4, etc., of the interval between the other floors FL. For example, if the distance between the floor FL on the X floor and the floor FL on the (X + 1) floor is 5 [m], the center is a distance of 2.5 [m] from both floors FL, but 1/3 of the position Is 5/3 [m] from the floor FL on the X floor, and 10/3 [m] from the floor FL on the (X + 1) floor.

[Effect of First Embodiment]
According to the first embodiment described above, the current floor of the car 1 is specified by height data measured in advance and the car position by the car position detection circuit 15, and the current floor changes by n + 1 floors The failure of the position detector 7 is detected when n sheets of the position detection plate 8 can not be detected. Therefore, according to the first embodiment, the failure of the position detector 7 can be detected more reliably regardless of the installation position (the distance from the floor FL) of the position detection plate 8. Therefore, a highly safe elevator apparatus can be provided.

  As described above, the technology described in Patent Document 1 uses counting means for counting pulses synchronized with the number of revolutions of the motor for calculating the movement amount of the car 1. Therefore, when the slip occurs between the sheave and the rope rotationally driven by the electric motor, or when the influence of the extension of the rope is large, there is a possibility that the movement amount of the car is miscalculated. On the other hand, since the rotation detector 11 (FIG. 1) of this embodiment detects the rotation of the sheave 9a, it outputs a signal that accurately reflects the amount of movement of the car 1. Also, in the prior art, the rope suspended on the sheave is easy to stretch due to the tension by the car and the counterweight. However, in the present embodiment, since the endless speed control rope 10 is wound around the sheave 9a and the sheave 9b of the speed governor 9, the speed control rope 10 is difficult to stretch.

  In the first embodiment, in order to detect the position (moving amount) of the car 1 during high-speed operation, not from the pulse signal according to the rotation of the motor 5M output from the pulse generator 6, but from the rotation detector 11. The signal according to rotation of the sheave 9a of the governor 9 output is used. This increases the accuracy of the car position during high speed operation.

  Further, in the present embodiment, since the failure determination of the position detector 7 is performed each time the car 1 moves to the second floor, the failure of the position detector 7 is detected immediately during high-speed operation and the car 1 is Can stop driving. Therefore, the risk of continuing the operation without noticing the failure of the position detector 7 can be avoided.

[Modification of arrangement of position detection plate]
By the way, although the first embodiment has been described on the premise that the position detection plate 8 is provided on each floor, in the present invention, the position detection plate 8 may not be provided on each floor.

  FIG. 5 is a view showing a modification of the arrangement of the floor FL and the position detection plate 8 according to the first embodiment. As shown in FIG. 5, the position detection plate 8 is installed on the floors FL on the first floor, the third floor and the fourth floor excluding the second floor, for the floors FL from the first floor to the fourth floor. The first floor, the third floor and the fourth floor are the operation target floors of the elevator apparatus 100, that is, the stop target floors of the car 1.

  When such a position detection plate 8 is provided corresponding to only the floor FL on the stop target floor of the car 1, the position detector 7 detects the floor of the operation target floor on which the car 1 has moved. Let the number be the number of floors that the car 1 has moved to. In FIG. 5, when the car 1 has moved to the fourth floor with the first floor as the departure floor, the number of floors in the operation target floor where the car 1 has moved is two. In this case, when the position detector failure detection circuit 17 detects one position detection plate 8 installed on the third floor while the car 1 moves from the first floor to the fourth floor. Does not detect a failure of the position detector 7.

  In addition, since the present invention determines the failure of the position detector 7 based on the number of floors that the car 1 has moved and the number of position detection plates 8 detected by the position detector 7, the position detection for the floor FL There is no rule on the arrangement position of the plate 8. The data of the height table of the height memory 14 indicates not the floor level (floor height) but the height of the position detection plate 8 from the reference floor (the installation position with respect to the reference floor). For example, as in the first and fourth floors of FIG. 5, generally the position detection plate 8 is installed at the same height as the floor FL, but as in the third floor, it is located at any height different from the height of the floor FL. The detection plate 8 may be installed. As described above, according to the present invention, the installation position (the distance from the floor FL) of the position detection plate 8 is not limited, and the degree of freedom in the arrangement of the position detection plate 8 is high.

<2. Second embodiment>
The second embodiment is different from the first embodiment in the height table of the height memory 14 based on the signal corresponding to the rotation of the sheave 9 a of the speed governor 9 output from the rotation detector 11. To generate

[Overall configuration of elevator apparatus]
FIG. 6 is a schematic view showing an example of the overall configuration of the elevator apparatus according to the second embodiment. The elevator apparatus 100A of FIG. 6 includes a control unit 12A. The control unit 12A does not include the floor height measurement circuit 13 (FIG. 1) of the first embodiment, and the car position detection circuit 15 doubles as the floor height measurement circuit 13.

  The car position detection circuit 15 generates a height table in the same manner as the floor height measurement circuit 13 using a signal output from the rotation detector 11 according to the rotation of the sheave 9 a. That is, the car 1 is operated at low speed from the bottom floor (for example, the first floor) to the top floor, and the car position detection circuit 15 outputs the signal output from the rotation detector 11 every time it passes the position detection plate 8 The distance between adjacent position detection plates 8 is calculated from the count value of the signal. Further, the car position detection circuit 15 calculates the height (installation position) from the reference floor (for example, the first floor) of the position detection plate 8 based on the distance between the adjacent position detection plates 8 and the reference of the position detection plate 8 The height from the floor is associated with the floor FL and stored in the height memory 14.

  The position detector failure detection processing by the control unit 12A of the second embodiment is the same as that of the control unit 12 of the first embodiment except that the car position detection circuit 15 generates the height table.

[Effect of Second Embodiment]
According to the second embodiment described above, the height table is generated based on only the signal corresponding to the rotation of the sheave 9 a of the speed governor 9 output from the rotation detector 11 and the position of the car 1. To detect Therefore, in the second embodiment, the accuracy of the position of the car 1 is higher than that of the first embodiment, and the failure of the position detector 7 can be detected more reliably.

<3. Third embodiment>
The third embodiment is different from the first and second embodiments in that the height table is generated based only on the pulse signal corresponding to the rotation of the motor 5M output from the pulse generator 6 (FIG. 1). And the point of detecting the position of the car 1.

[Overall configuration of elevator apparatus]
FIG. 7 is a schematic view showing an example of the overall configuration of the elevator apparatus according to the third embodiment. The elevator apparatus 100B of FIG. 7 includes a control unit 12B. The control unit 12B does not include the rotation detector 11 and the car position detection circuit 15 (FIG. 1) of the first embodiment, and the floor height measurement circuit 13 doubles as the car position detection circuit 15.

  The floor height measurement circuit 13 receives a pulse signal output from the pulse generator 6 according to the rotation of the motor 5M during normal operation (high speed operation). Then, the floor height measurement circuit 13 detects the amount of movement (car position) from the floor FL (departing floor) at the start of movement of the car 1 based on the pulse signal of the pulse generator 6, and detects the detected result. It outputs to the floor detection circuit 16. In the present embodiment, the accuracy of the car position is slightly inferior to that of the first and second embodiments.

  The floor detection circuit 16 detects the amount of movement of the car 1 from the departure floor detected by the floor height measurement circuit 13 and the relationship between the floor FL stored in the height memory 14 and the height from the reference floor. Based on the current floor of the car 1 (current floor) is detected. Then, the detection result is output to the position detector failure determination circuit 17.

  According to the third embodiment described above, substantially the same effects as those of the first and second embodiments can be obtained. That is, in the third embodiment, the failure of the position detector 7 can be detected regardless of the installation position of the position detection plate 8 (the distance from the floor FL). Therefore, the elevator apparatus having a high degree of freedom in the arrangement of the position detection plate 8 can be provided.

  In general, a pulse generator 6 is provided as a standard feature in the motor 5M that rotationally drives the hoist 5. Therefore, 3rd Embodiment can be constructed | assembled using the existing installation (pulse generator 6), without newly providing the rotation detector 11 which detects rotation of a sheave 9a.

<4. Fourth embodiment>
The fourth embodiment is an example where a plurality of position detectors are provided.
FIG. 8 is an explanatory view showing the arrangement of the floor and the position detection plate according to the fourth embodiment.
FIG. 9 is an explanatory view showing the arrangement of a position detection plate and a position detector according to the fourth embodiment. FIG. 9 is an example of the case where the car and its surroundings are viewed from above the car. Main rope 2 is omitted.

  As shown in FIGS. 8 and 9, with respect to the first floor of the wall of the hoistway 4 (the inner wall of the building 101), the position detection plate 8La on the X floor and the position detection plate 8Rb on the (X + 1) floor, The position detection plate 8Lc is disposed on the (X + 2) floor. As shown in FIG. 8, the position detection plates 8La and 8Lc are arranged in the left row (X direction), and the position detection plates 8Rb are arranged in the right row (X direction). Further, position detectors 7L and 7R are attached to the upper surface 1U of the car 1 corresponding to the position detection plates 8La, 8Lc and 8Rb. When the position detection plate and the position detector are not distinguished from one another, they may be referred to as the position detection plate 8 and the position detector 7.

  That is, a plurality of (two in this example) position detectors are installed in the car 1 in a direction (Y direction) perpendicular to the elevating direction (X direction) of the car 1. Further, a wall of the hoistway 4 is provided with a plurality of rows (two rows in this example) so as to face a plurality of position detectors, and a maximum of one position detection plate is installed on each floor FL.

The failure determination in step S3 of FIG. 3 when the position detection plate and the position detector are disposed as in the present embodiment will be described.
Even when the position detection plates 8 are alternately installed, when the current floor of the car 1 changes from the X floor to the (X + 2) floor, the position detector failure determination circuit 17 detects any of the position detectors 7L and 7R. When the position detection plate 8 is not detected, the failure of the position detector 7 is detected. That is, the position detector failure determination circuit 17 determines that the position detector 7L or 7R is in failure.

<5. Other>
In addition, one position detector may be equipped with a plurality of sensors which detect a position detection board in the inside. When the position detector 7 includes a plurality of sensors, when there are a plurality of optical axes, the optical axes to be shielded by the respective position detection plates 8 are recorded in advance in the memory. The position detector failure determination circuit 17 determines that the position detector failure if the light blocking state of the optical axis of each sensor of the position detector 7 does not match the recorded content. That is, the position detector failure determination circuit 17 determines that the position detector 7 is broken when one or more of the plurality of sensors included in the position detector 7 are broken.

  In addition, although the series of processes in the above-described embodiment can be performed by hardware, all or part of them can be performed by software. When all or part of the series of processes is executed by software, a computer in which a program constituting the software is incorporated in dedicated hardware or a computer in which a program for executing various functions is installed. Is feasible. For example, a program constituting desired software may be installed and executed on a general-purpose personal computer or the like.

  Further, a recording medium storing a program code of software for realizing the functions of the above-described embodiments may be supplied to a system or an apparatus. It goes without saying that the function is realized also when a computer (or a control device such as a CPU or the like) of the system or apparatus reads out and executes a program code stored in a recording medium (memory or the like).

[Hardware configuration example of each device]
FIG. 10 is a block diagram showing an example of a hardware configuration of a computer that executes the above-described series of processes by a program. Here, the hardware constitutions of the computer 50 which comprises control part 12, 12A, 12B of elevator apparatus 100, 100A, 100B mentioned above are demonstrated. Each part of the computer 50 is selected according to the function of each device and the purpose of use.

  The computer 50 is hardware that is used as a so-called computer. The computer 50 includes a central processing unit (CPU) 51, a read only memory (ROM) 52, and a random access memory (RAM) 53 connected to the bus 54. The computer 50 further includes a display unit 55, an operation unit 56, a non-volatile storage 57, and a network interface 58.

  The CPU 51 (corresponding to the control unit 12, 12A, 12B) reads out from the ROM 52 a program code of software for realizing each function according to the present embodiment and executes it. The computer 50 may include a processing device such as an MPU (Micro-Processing Unit) instead of the CPU 51.

  Variables, parameters, and the like generated in the middle of the arithmetic processing are temporarily written in the RAM 53. The display unit 55 is, for example, a liquid crystal display monitor, and displays the result of the process performed by the computer 50 to the operator. For example, a keyboard, a mouse, a touch panel or the like is used for the operation unit 56, and the driver can perform predetermined operation input and instruction.

  The non-volatile storage 57 may be, for example, a hard disk drive (HDD), a solid state drive (SSD), a flexible disk, an optical disk, an optical magnetic disk, a CD-ROM, a CD-R, a magnetic tape, a non-volatile memory card, etc. Used. In the non-volatile storage 57, in addition to an operating system (OS) and various parameters, a program for causing the computer 50 to function is recorded. For example, in the non-volatile storage 57, a height table (FIG. 2) and the like are stored.

  For example, a network interface card (NIC) or the like is used as the network interface 58, and various data can be transmitted and received to and from a monitoring center or the like via a network such as a LAN.

  Furthermore, the present invention is not limited to the embodiments described above, and it goes without saying that various other applications and modifications can be taken without departing from the scope of the present invention described in the claims. is there.

  For example, the above-described embodiment is a detailed and specific description of the configuration of the apparatus and system in order to explain the present invention in an easy-to-understand manner, and is not necessarily limited to one having all the configurations described. . In addition, it is possible to replace part of the configuration of one embodiment with the configuration of another embodiment. Moreover, it is also possible to add the configuration of another embodiment to the configuration of one embodiment. In addition, it is also possible to add, delete, and replace other configurations for part of the configuration of each embodiment.

  Further, control lines and information lines indicate what is considered to be necessary for the description, and not all control lines and information lines in the product are necessarily shown. In practice, almost all configurations may be considered to be mutually connected.

  Furthermore, in the present specification, processing steps that describe time-series processing are parallel or individual processing that is not necessarily performed chronologically, as well as processing performed chronologically in the order described. Processing (eg, parallel processing or processing by an object).

  DESCRIPTION OF SYMBOLS 1 ... Car cage | basket 4, 4 A shaft, 5 ... Winding-up machine, 5M ... Electric motor, 6 ... Pulse generator, 7, 7L, 7R ... Position detector, 8, 8a, 8b, 8c, 8La, 8Lc, 8Rb ... Position Detection plate 9 ... Speed governor 9a, 9b ... Sheave bar 10 ... Speed control rope, 11 ... Rotation detector, 12, 12A, 12B ... Control part, 13 ... Car position detection circuit, 14 ... Floor detection Circuit 15 Floor height measuring circuit 16 Height memory 17 Position detector failure judging circuit 51 CPU 100, 100A, 100B Elevator device FL Floor

Claims (7)

A signal generator which outputs a signal corresponding to the rotation of a rotating body that rotates in accordance with the vertical movement of the car, around which a rope connected with a car is connected;
A car position detection circuit that detects an amount of movement of the car from the departure floor based on a signal output from the signal generator;
A position detection member installed in the hoistway corresponding to the floor,
A position detector installed in the car for detecting the position detection member;
With the height storage unit where the relationship between the floor and the height from the reference floor is stored,
The riding is based on the moving amount from the departure floor of the car detected by the car position detection circuit, and the relationship between the floor stored in the height storage unit and the height from a reference floor. A floor detection circuit that detects the current floor of the car;
The position detector is obtained based on the number of floors on which the car has moved and the number of position detection members detected by the position detector by acquiring detection results of the floor detection circuit and the position detector. A failure determination circuit that determines a failure;
As the rotating body, a sheave on which a speed control rope connected with the rider is wound, and a winding machine for raising and lowering the carriage, around which a main rope connected with the rider is wound.
As the signal generator, a first signal generator that detects the rotation of the sheave and outputs a signal according to the rotation, and a second signal generator that outputs a signal according to the rotation of the hoist , equipped with a,
The relationship between the floor and the height from the reference floor stored in the height storage unit is measured using the second signal generator,
The car position detection circuit detects an amount of movement of the car from the departure floor based on the signal output from the first signal generator, and the floor detection circuit detects the car position detection circuit. The current floor of the car is selected based on the amount of movement of the car from the departure floor of the car and the relationship between the floor stored in the height storage unit and the height from the reference floor. Elevator device to detect . When the position detector does not detect the n pieces of position detection members when the car moves by n + 1 floors (n is a natural number), the failure determination circuit may cause the position detector to fail. The elevator apparatus according to claim 1, which is determined to be. The position detection member is installed corresponding to the floor of the operation target floor of the car, and the floor on which the car has moved is the number of floors on which the car has moved the floor of the operation target floor. The elevator apparatus according to claim 2, wherein the elevator apparatus is a number. A plurality of the position detectors are installed in the car in a direction perpendicular to the elevating direction of the car;
The elevator apparatus according to claim 1, wherein a plurality of rows are installed on the wall of the hoistway so as to face the position detectors, and a maximum of one position detection member is installed on each floor . The elevator apparatus according to claim 1, wherein the position detection member is installed at a height different from the height of the floor in the hoistway . The position detector comprises a plurality of sensors for detecting the position detection member;
The elevator apparatus according to claim 1, wherein the failure determination circuit determines that the position detector is broken when one or more of the plurality of sensors fail . Based on the signal output from the first signal generator that outputs a signal according to the rotation of the sheave on which the speed control rope connected with the car is connected, the travel distance from the departure floor of the car is calculated. A cage position detection procedure to be detected;
A position detection procedure in which a position detector detects a position detection member installed in a hoistway corresponding to a floor installed in the car;
An amount of movement of the car detected from the departure floor detected by the car position detection procedure, a main rope connected to the car and the car, and a hoist that rotates in accordance with the elevator movement of the car The current of the car is measured based on the relationship between the floor and the height from the reference floor, which is measured using a second signal generator that outputs a signal according to the rotation and stored in the height storage unit. Floor detection procedure to detect the floor of the
The position detector is obtained based on the number of floors moved by the car and the number of position detection members detected by the position detector, by acquiring detection results of the floor detection procedure and the position detection procedure. A failure determination procedure for determining a failure;
A program to make a computer run.

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