JP4566648B2 - Elevator equipment - Google Patents

Description

  The present invention relates to an elevator apparatus having a car that moves up and down in a hoistway, and more particularly to an elevator apparatus having a car position detection device.

  In a conventional elevator apparatus, a car position is detected by integrating pulses output from an encoder attached to a hoisting machine or a speed governor. However, since the linear movement of the car is converted into rotational movement using a rope connected to the car and wrapped around the pulley, the car is stretched, slipped between the pulley and the rope, etc. The position could not be detected accurately. For this reason, a car position detector is separately provided in the hoistway, and the car position is corrected by the encoder based on the output of the car position detector to detect a more accurate car position (see, for example, Patent Document 1).

Special table 2003-528015 gazette

  In the conventional elevator apparatus as described above, it is necessary to correct the position detection result by the encoder by the output of the position detector provided in the hoistway. For this reason, not only an encoder but also a position detector for performing correction is required, and the number of parts has increased. In addition, it takes time and effort to install the position detection device on the hoistway.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an elevator apparatus including a car position detection device that can accurately detect the position of a car with a small number of parts. is there.

An elevator apparatus according to the present invention includes a car that moves up and down in a hoistway, an IC tag in which position information is written, and a tag reader that reads position information of the IC tag, and the IC tag is disposed at a position that can be read by the tag reader. The tag reader moves relative to the IC tag as the car moves up and down, and reads the position information of the IC tag when the car reaches a predetermined position. The car is the first car. Each IC tag includes a second car, and the IC tag is written with positional information about the first car, and the first IC tag moves relative to the tag reader as the first car moves up and down, Relative distance information about the distance of the second car relative to the car is written, and the second IC tag moves relative to the tag reader as the second car moves up and down. Provided on the basket, it reads the position information of the first and second IC tag.

  According to the elevator apparatus of the present invention, the members used for the elevator and moving relative to each other are provided with the apparatus for storing the position information and the apparatus for reading the information, so that the car position can be accurately determined with a small number of parts. Can be detected.

The best mode for carrying out the present invention will be described below with reference to the drawings.
Embodiment 1 FIG.
FIG. 1 is a configuration diagram illustrating an elevator apparatus according to an embodiment of the present invention. In the figure, a hoistway 1 is provided in the building. The car 2 is moved up and down in the hoistway 1. A control panel (not shown) is provided in the hoistway 1 or in the machine room (not shown). The control panel is given a driving command by an operating device (not shown) such as a landing button (not shown) provided on each floor of the building and a call registration button (not shown) provided in the car 2. Then, the drive machine (not shown) is operated to raise and lower the car 2 in the hoistway 1.

  On the upper part of the hoistway 1, a governor pulley 5 (pulley) is provided. At the lower part of the hoistway 1, a tensioning wheel 6 (pulley) is provided. A governor rope 7 is wound between the governor pulley 5 and the tension wheel 6. The governor rope 7 is directly connected to the car 2. That is, the governor rope 7 is circulated in conjunction with the raising and lowering of the car 2.

  A plurality of IC tags 100 (IC tag 101 to IC tag 110) are embedded in the governor rope 7 at arbitrary distances. In the IC tag 100, position information (for example, 50 cm from the hoistway floor (bottom surface)) is written. The position information is written at the site when the elevator is installed. Here, since the governor rope 7 is a member in the hoistway 1 that moves in conjunction with the raising and lowering of the car 2, it can be said that the IC tag 100 moves in conjunction with the raising and lowering of the car 2.

  Here, the governor rope 7 includes a forward-moving rope portion 7a that moves in the same direction with respect to the raising and lowering of the car 2 across the pulley (the governor pulley 5 and the tensioning wheel 6), and the raising and lowering of the car 2. And a reverse moving rope portion 7b that moves in the reverse direction.

  The governor rope 7 with the IC tag 100 moves relative to the hoistway wall 8. Therefore, the hoistway wall 8 is a member in the hoistway 1 that moves relative to the IC tag 100. The hoistway wall 8 is provided with a tag reader 9 electrically connected to the control panel. The tag reader 9 reads position information of the IC tag 100 provided on the reverse movement rope portion 7b. The tag reader 9 is set so as to read information of one IC tag 100. However, since the tag reader 9 can arbitrarily set the emission of electromagnetic waves, it can be set so that information of two or more IC tags 100 can be read simultaneously by one tag reader 9.

  Here, although not shown, the IC tag 100 has an IC chip and an antenna. The tag reader 9 has an antenna (not shown). The tag reader 9 sends a data calling signal to the IC tag 100 by electromagnetic waves. The IC tag 100 generates an induced electromotive force by receiving an electromagnetic wave from the tag reader 9. Using the generated electromotive force, data stored in the IC chip is transmitted to the tag reader 9 by electromagnetic waves. The tag reader 9 can read data by receiving the electromagnetic wave from the IC tag 100. That is, the IC tag 100 and the tag reader 9 do not simply detect the presence or absence of a magnetic code, but exchange information by performing non-contact communication using electromagnetic waves. The IC tag 100 can also write and rewrite data. Information can be stored in the IC chip by transmitting information from the tag writer (not shown) to the IC tag 100 via the antenna.

  Next, the operation will be described. Here, FIG. 2 is a block diagram showing a state when the car 2 of FIG. 1 is raised. A control board raises / lowers the cage | basket | car 2 according to operation of an operating device. As the car 2 moves up and down, the governor rope 7 is circulated.

  When the car 2 is at the position shown in FIG. 1, the data of the IC tag 101 is sent to the control panel via the tag reader 9. When the car 2 is moved to the position shown in FIG. 2, data of the IC tag 101 to the IC tag 106 reflecting the position of the car 2 is sent to the control panel.

  In the above operation, the control panel gradually accelerates the car 2 when the data of the IC tag 102 and the IC tag 103 are sent, and when the data of the IC tag 104 and the IC tag 105 are sent. The car 2 can be gradually decelerated and the car 2 can be stopped when the data of the IC tag 106 is sent.

  In such an elevator apparatus, the position information is written at the site when the elevator is installed, so that it is possible to flexibly cope with fine changes such as architectural design, etc., and the elevator installation state (for example, rope) at the site (E.g., the governor rope 7 or the main rope) when it is hung, it can correspond to the elongation generated by its own weight), and therefore, it is possible to obtain more reliable position information that corresponds more appropriately, The elevator can be controlled with high accuracy.

  Moreover, the increase in the number of parts can be suppressed by using the governor rope 7 already used in the elevator apparatus.

  Furthermore, in the conventional elevator apparatus, since heavy objects such as a car are suspended by a rope, the rope has been stretched over time, and the position of the car and each floor has shifted. However, in such an elevator apparatus, the position information in the state at that time can be easily rewritten at the time of maintenance and inspection, so that more reliable maintenance and operation of the elevator can be performed.

  Furthermore, since the IC tag 100 is not written with a code signal that makes ON, OFF, etc., and identifies the location by the combination, information on detailed positions is stored. There is no need to analyze. Therefore, more reliable control can be performed.

  Furthermore, in such an elevator apparatus, it is possible to suppress the influence of dirt, blurring, dust, and the like on an apparatus using a bar code or the like, so that the reliability of position information can be further improved.

  Alternatively, the governor rope 7 may be provided such that the IC tag 100 is provided on the hoistway wall 8 and the tag reader 9 circulates in conjunction with the raising and lowering of the car 2 moving relative to the IC tag 100.

Embodiment 2. FIG.
FIG. 3 is a block diagram showing an elevator apparatus according to one embodiment of the present invention. In the figure, a plurality of IC tags 100 (IC tag 101 to IC tag 119) are embedded in the governor rope 7 as in the first embodiment. Here, the reverse movement rope portion 7 b is folded back by a pulley and moves in the reverse direction with respect to the car 2. Accordingly, the car 2 is a member in the hoistway that moves relative to the IC tag 100 embedded in the reverse moving rope portion 7b.

  A tag reader 9 is provided in the car 2. The tag reader 9 can read the position information of the IC tag 100 embedded in the reverse movement rope portion 7b. It can be said that the IC tag 100 and the tag reader 9 thus provided both move in conjunction with the raising and lowering of the car 2. Other configurations are the same as those of the first embodiment.

  Next, the operation will be described. FIG. 4 is a configuration diagram showing a state when the car 2 of FIG. 3 is raised. The operation in which the car 2 moves up and down in the hoistway 1 in accordance with the operation of the operating device and the IC tag 100 moves in conjunction with it is the same as in the first embodiment. However, the tag reader 9 provided in the car 2 moves up and down as the car 2 moves up and down.

  When the car 2 is in the position shown in FIG. 3, the data of the IC tag 101 is sent to the control panel via the tag reader 9. When the car 2 moves to the position shown in FIG. 4, the data of the IC tag 101 to the IC tag 111 are sent to the control panel.

  At this time, since the tag reader 9 is moved in the opposite direction with respect to the IC tag 100, the IC tag 100 and the tag reader 9 move at a double relative speed with respect to the first embodiment.

  In such an elevator apparatus, since the position information can be obtained twice in addition to the effects of the first embodiment, position information with higher reliability can be detected, and finer control can be performed.

  If this effect is used in reverse, the same effect as in the first embodiment can be obtained with half the number of IC tags as in the first embodiment.

Embodiment 3 FIG.
FIG. 5 is a block diagram showing an elevator apparatus according to one embodiment of the present invention. Compared with the elevator apparatus shown in FIGS. 3 and 4, the elevator apparatus in FIG. 5 is provided with a second car 10 different from the first car 2 described above in the same hoistway 1. The second car 10 is provided below the first car 2. In addition, a second governor rope 11 different from the first governor rope 7 is provided in the hoistway 1. The second governor rope 11 is connected to the second car 10. Therefore, the second governor rope 11 is a member in the hoistway 1 that moves in conjunction with the second car 10. Further, the second governor rope 11 is provided so that the second governor pulley 12 and the second tensioning wheel 13 cooperate.

  A plurality of IC tags 200 (IC tag 201 to IC tag 225) (second IC tag) are embedded in the second governor rope 11 at arbitrary distances. A plurality of IC tags 100 (IC tag 101 to IC tag 125) (first IC tag) are embedded in the first governor rope 7. In the IC tag 100 and the IC tag 200, the position information of the own car and the relative distance information for each opponent car (information on the positions of the first car and the second car) are written. Here, the car is a car directly connected to each governor rope. The opponent car is a car that is not directly connected to each governor rope.

  Similar to the first governor rope 7, the second governor rope 11 includes a second forward-moving rope portion 11 a that moves in the same direction with respect to the second car 10 across the pulley, and the second governor rope 11. It has the 2nd reverse movement rope part 11b which moves to a reverse direction with respect to the 2nd cage | basket | car 10. As shown in FIG.

  Here, it can be said that the second reverse movement rope portion 11 b is a member in the hoistway 1 that is moving relative to the raising and lowering of the second car 10. That is, it can be said that the second car 10 is a member in the hoistway 1 that moves relative to the IC tag 200 of the second reverse movement rope portion 11b.

  The first car 2 is provided with a plurality of first tag readers 9. The second car 10 is provided with a plurality of second tag readers 14. The number of the first tag readers 9 and the second tag readers 14 is the same as the number of the elevators. In the third embodiment, each tag is provided with two tag readers.

  The two first tag readers 9 are a first car tag reader 9a and a first opponent car tag reader 9b. The two second tag readers 14 are a second car tag reader 14a and a second opponent car tag reader 14b.

  The first self-car tag reader 9a and the second self-car tag reader 14a are provided with an IC tag (IC tag 100 or IC tag 200) provided on a governor rope directly connected to a car provided with the first car tag reader 9a. Reads the position information of the car written in. The first opponent car tag reader 9b and the second opponent car tag reader 14b are each provided with an IC tag (IC tag 100 or IC tag 200) provided on a governor rope that is not directly connected to the car on which the first opponent car tag reader 14b is provided. ) Read the relative distance information of each opponent's car written in ().

  Here, the role of the second tag reader 14 provided in the second car 10 will be specifically described. The second car tag reader 14a reads the position information of the second car 10 written in the IC tag 200 provided in the second reverse movement rope portion 11b. Further, the second opponent car tag reader 14 b reads the relative distance information between the second car 10 and the first car 2 written on the IC tag 100 provided on the first governor rope 7. .

  The first car tag reader 9a and the first opponent car tag reader 9b provided in the first car 2 and the second car tag reader 14a and the second opponent provided in the second car 10 The car tag reader 14b is electrically connected to a control panel or a control circuit in the car. Other configurations are the same as those in the second embodiment.

  Next, the operation will be described. 6 is a block diagram showing a state when the first car 2 of FIG. 5 is raised, and FIG. 7 is a block diagram showing a state when the second car 10 of FIG. 6 is raised. is there. The movement relationship of the IC tag 100 and the first tag reader 9 and the IC tag 200 and the second tag reader 14 when the first car 2 and the second car 10 move up and down in the hoistway 1 is the same as in the second embodiment. It is.

  However, unlike the first and second embodiments, the distance between the first car 2 and the second car 10 becomes a problem. Based on this, the role of the IC tags 100 and 200 in the positional relationship between the first car 2 and the second car 10 in FIGS. 5 to 7 will be described by paying attention to the first car 2.

  In FIG. 5, the second car 10 is located on the lowest floor, and the first car 2 is in a position closest to the second car 10. Here, the first car tag reader 9a reads the information of the IC tag 108, and the first opponent car tag reader 9b reads the information of the IC tag 225. Here, the IC tag 108 is position information (the lowest floor for the first car 2) of the current own car (first car 2), and the IC tag 225 is the other car (second car 10). Relative distance information (closest to the second car 10).

  Next, as shown in FIG. 6, when the first car 2 rises to the top floor, the first car tag reader 9a reads the information of the IC tag 120, and the first opponent car tag reader 9b reads the IC tag. 219 information is read. That is, the information written in the IC tag 120 is the position information of the top floor for the first car 2, and the information written in the IC tag 219 is the most similar to the second car 10 for the first car 2. Relative distance information.

  Further, as shown in FIG. 7, when the second car 10 rises to the position closest to the first car 2 located on the top floor, the first car tag reader 9 a detects the information of the IC tag 120. The first opponent car tag reader 9b reads the information of the IC tag 225. That is, it can be seen that the car is located on the top floor and the opponent car is located closest.

  That is, in the first car 2, the position of the car is read by the first car tag reader 9 a reading the information written in the IC tag 100 embedded in the reverse moving rope portion 7 b directly connected to the car. When the first opponent car tag reader 9b reads the information written in the IC tag 200 embedded in the second governor rope 11 directly connected to the opponent car, the relative distance of the opponent car is obtained. Detected.

  Similarly, in the second car 10, the information written in the IC tag 200 is read by the second car tag reader 14a to detect the position information of the car and the information is written in the IC tag 100. The relative distance for each car is detected by reading the information by the second car tag reader 14b.

  In such an elevator apparatus, even when a plurality of cars are operated on one hoistway 1, it is possible to more reliably detect the position of the car and the relative distance of each car, so that the reliability of elevator operation management is ensured. Can be improved.

  In addition, since it is possible to detect the position of the own car and the relative distance of the opponent car in the control circuit in the car (the first car 2 and the second car 10) instead of the control panel, Even when communication failure with one control panel occurs, it is possible to prevent other cars from going to the same floor.

  Note that in the third embodiment, the IC tags (IC tag 121 to IC tag 125 and IC tag 215 to IC tag 218) that are not used for position information detection should have a malfunction. Emergency information, information on operation control, or the like may be stored, and a tag reader corresponding to the information may be provided. Alternatively, IC tags (IC tag 121 to IC tag 125 and IC tag 215 to IC tag 218) that are not used for position information detection need not be provided.

  Further, in the third embodiment, it has been described that two cars move up and down in the hoistway, but three or more cars may move up and down in the hoistway.

  Further, in the third embodiment, the first car 2 and the second car 10 are provided with two tag readers for reading information written in the IC tags 100 and 200. It is also possible to adjust the electromagnetic waves radiated toward and simultaneously read information written in the IC tags 100 and 200 with one tag reader.

  Furthermore, in the third embodiment, the IC tags 100 and 200 store the position information of the own car and the relative distance information of each opponent car. However, only the position information of the own car is stored in each IC tag. The relative distance may be detected by storing and comparing the position information of the own car read by the tag reader for the own car and the position information of the opponent car read by the tag reader for the other car.

  In the first to third embodiments, the IC tags 100 and 200 are embedded in the first governor rope 7 and the second governor rope 11, but the surface of each governor rope. Thus, an IC tag in which position information is written may be provided on the surface not in contact with the governor pulley.

  Further, in the first to third embodiments, the member provided for interlocking the IC tag and the tag reader with the raising and lowering of the car is a governor rope and is a car. However, the main rope and the counterweight are not limited to these.

BRIEF DESCRIPTION OF THE DRAWINGS It is a block diagram which shows the elevator apparatus by Embodiment 1 of this invention. It is a block diagram which shows a state when the cage | basket | car of FIG. 1 raises. It is a block diagram which shows the elevator apparatus by Embodiment 2 of this invention. It is the block diagram which showed the state when the cage | basket | car of FIG. 3 rose. It is a block diagram which shows the elevator apparatus by Embodiment 3 of this invention. It is a block diagram which shows a state when the 1st cage | basket | car of FIG. 5 raises. It is a block diagram which shows a state when the 2nd cage | basket of FIG. 6 raises.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Hoistway, 2 Car (1st car), 7 1st governor rope, 8 Hoistway wall, 9 Tag reader (1st tag reader), 10 2nd cage, 11 2nd governor rope , 14 Second tag reader (tag reader), 100 to 125 IC tag (first IC tag), 200 to 225 IC tag (second IC tag).

Claims (2)

A car that goes up and down in the hoistway,
An IC tag in which position information is written, and a tag reader for reading the position information of the IC tag,
The IC tag is disposed at a position readable by the tag reader,
The tag reader moves relative to the IC tag as the car moves up and down, and reads the position information of the IC tag when the car reaches a predetermined position .
The car includes a first car and a second car,
In the IC tag, position information related to the first car is written, and a first IC tag that moves relative to the tag reader as the first car moves up and down, and the first car relative to the first car. Relative distance information about the distance of the second car is written, and the second IC tag moves relative to the tag reader as the second car moves up and down,
The tag reader is provided in the first car and reads position information of the first and second IC tags . Elevator device according to claim 1, wherein the IC tag is characterized in that are found provided on the rope circulating in conjunction with the vertical movement of the car.

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