JP2016060618A - Signal transmission device for tail-cordless elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a signal transmission device for a tail-cordless elevator, capable of eliminating an optical axis adjustment, properly performing bi-directional signal transmission of various kinds of pieces of information between a car and a control panel, in a non-contact manner, and being effectively applied to a high-rise building having a long hoistway, with a simple structure.SOLUTION: A signal transmission device comprises: a position detector 100 with a communication function, in which a light emission part 13 and a light reception part 14 for communication for transmitting and receiving various kinds of pieces of information by optical communication, are provided while being made to face each other on the inside, besides a light emission part 11 and a light reception part 12 for position detection provided while being made to face each other on the outside for detecting a position of a shield plate 2 in a non-contact manner on a recessed part of an existing position detector 1; and a shield plate 200 with a communication function, comprising a light reception part 21 and a light emission part 22 for communication, which enter a recessed part on the existing plate-state shield plate 2 and transmit and receive the various kinds of pieces of information between the light emission part 13 and the light reception part 14 for communication by optical communication in a non-contact manner, in a state that a pencil of light beams for position detection emitted from the light emission part 11 to the light reception part 12 is blocked.SELECTED DRAWING: Figure 3

Description

  The present invention provides non-contact bidirectional signal transmission of various information such as car calls, indicator display, door control, etc. between a car and a control panel moving up and down between floors in an elevator hoistway installed in a building The present invention relates to a signal transmission device for a tail cordless elevator performed by

  Conventionally, in a general-purpose elevator, various information signals such as a car call between a control panel and a car, an indicator display, door control and the like are transmitted directly from the control panel via a cable called a tail cord. However, in an elevator installed in a high-rise building, if the total length of the tail cord becomes longer, the voltage drop increases accordingly, so if the tail cord becomes longer, use it synergistically. Although it is necessary to increase the diameter of the conductor (the diameter of the electric wire) to suppress the voltage drop, in such a case, it becomes impossible to avoid high costs.

  In addition, if the suspension core that fixes the tail cord to the car is displaced with respect to the center of gravity of the car, the tilt of the car and the swing of the tail cord due to the unbalanced load will propagate to the car, adversely affecting the ride comfort. There is also a risk of giving.

  Therefore, in order to improve such a situation, as a signal transmission means between the control panel and the car, for example, a fixed side device provided at one end of a ceiling or a pit of a hoistway and a moving side device provided in a car An elevator having a tail cordless specification has been developed by configuring an optical communication system that performs optical communication in a non-contact manner using optical signals. In such an optical communication system, since the relative position between the stationary device and the moving device changes due to the movement of the car, the light emitting unit and the light receiving unit of the optical communication device can cope with the change in the relative position. There is a need.

  As a well-known technique related to the optical communication system for tail cordless elevator described above, an “elevator information transmission system” that can be additionally equipped with high degree of freedom to an existing elevator without being restricted by a tail cord (see Patent Document 1). ).

JP 2000-335840 A

  In the technique described in Patent Document 1 described above, an optical receiver installed in an elevator car, an optical transmitter installed at the bottom of a hoistway, and light for adjusting the optical axis of an optical signal transmitted from the optical transmitter. An optical axis adjusting device, and when the optical signal is received by the optical receiving device, the received light level is output to the controller of the optical axis adjusting device, and the optical axis adjusting device uses a pair of motors via the motor to maximize the received light level. By finely controlling the adjustment gear, the optical axis of the optical transmitter can be adjusted appropriately to improve the reception probability of the optical signal. Here, the received light level received by the optical receiver is fed back. As a result, the optical axis of the optical transmitter is adjusted, so that the configuration necessary for adjusting the optical axis when the moving body (car) is moving becomes complicated, and there is a problem that high costs cannot be avoided. If Assuming application to an elevator installed in a particularly high-rise building, if the length of the hoistway is long, the optical axis alignment between the optical transmitter and the optical receiver (the optical axis of the optical transmitter) (Adjustment) becomes difficult, and there is a problem that it is difficult to apply.

  The present invention has been made to solve such problems, and its technical problem is that the optical axis adjustment is not required with a simple configuration, and various types of information are interactively transmitted to and from the car and the control panel. It is an object of the present invention to provide a signal transmission device for a tail cordless elevator that can accurately perform signal transmission without contact and is effective for application to a high-rise building with a long hoistway.

  In order to solve the above technical problem, the present invention provides various kinds of information between a car that moves up and down between floors in an elevator hoistway installed in a building and a control panel installed in the hoistway. It has a function to perform two-way signal transmission in a non-contact manner, has a concave part, is provided at a predetermined location on the wall of the hoistway and is connected to the control panel, and the position of the car in the hoistway Tail cordless with a plurality of positive detectors and a plate-shaped shielding plate that is attached to a predetermined position of the car and has a free end opposite to the fixed side and a local portion on the tip side passing through the concave portion In the elevator signal transmission device, the concave portions of the plurality of positive detectors are provided with first communication means for transmitting and receiving various types of information in a non-contact manner in addition to the position detection means for detecting the positions of the shield plates in a non-contact manner. In the first communication Second communication means for transmitting and receiving various information to and from the stage in a contactless manner is provided, and the first communication means is such that the shielding plate is position-detected by the position detection means in any one of the concave portions of the plurality of detectors. Various information is transmitted and received in a non-contact manner with the second communication means at a certain position.

  According to the tail cordless elevator signal transmission device of the present invention, the above configuration eliminates the need for optical axis adjustment with a simple configuration, and allows non-contact bidirectional signal transmission of various types of information between the car and the control panel. It can be performed accurately and is effective for high-rise buildings with long hoistways. Problems, configurations, and effects other than those described above will be clarified by the following description of embodiments.

It is the schematic which showed the whole structure of the tail cordless elevator to which the signal transmission apparatus for tail cordless elevators concerning the Example of this invention is applied. It is the external appearance perspective view which showed the detailed structure around the passenger car of the tail cordless elevator shown in FIG. 1 including the principal part of the signal transmission apparatus from the inside of the car. It is the figure which showed the detailed structure of the signal transmission apparatus shown in FIG. 2 from the upper surface direction including the positional relationship and connection relationship of the positive plate with a communication function, and the shielding board with a communication function. It is the perspective view shown in order to demonstrate the positional relationship accompanying the movement of the shielding board with a communication function with respect to the positive detector with a communication function in the detailed structure of the signal transmission apparatus demonstrated in FIG.

  Hereinafter, a tail cordless elevator signal transmission apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 is a schematic diagram illustrating an overall configuration of a tail cordless elevator to which a signal transmission device for a tail cordless elevator according to an embodiment of the present invention is applied. FIG. 2 is an external perspective view showing the detailed configuration around the car 5 of the tail cordless elevator, including the main part of the signal transmission device, from the inside of the car.

  1 and 2, the tail cordless elevator according to the embodiment is a vehicle that moves up and down between floors along a guide rail 30 provided in a hoistway (not shown) of an elevator installed in a building. It has a function of performing non-contact bidirectional signal transmission of various information between the car 5 and the control board 31 installed in the hoistway, and the conventional control board 31 and the car 5 are suspended in the hoistway. One end portion of a rope 35 wound around a sheep 34 in which the car 5 and the counterweight 36 act as a pulley, without the need for a tail cord provided to be electrically connected in a lowered state. When the motor 34 connected to the other end is suspended and the control panel 31 rotates and drives the motor 33, the car 5 and the balance are rotated as the sheep 34 rotates. It has a mechanism of spindle 36 moves the hoistway in different directions.

  In the case of this tail cordless elevator, various information such as position detection of the car 5 in the hoistway, control of the car position display device 51 and the car door 53 of the car 5 from the control panel 31, operation status of the operation panel 52, etc. With respect to bidirectional signal transmission, each has a concave portion and is provided at a predetermined location on the wall of the hoistway and is connected to the control panel 31 by a wiring (conductive wire) 32, and in the hoistway of the car 5 A plurality of positioners 100, 101, 102 with communication functions each having a communication function with respect to the position detector 1, and an appliance box attached to a predetermined position of the car 5 and provided on the ceiling of the car 5 54. A shield with a communication function that is connected to 54 and has a communication function with respect to the plate-shaped shield plate 2 in which the local portion on the tip side that is the free end opposite to the fixed side passes through the concave portion 200 is carried out by configured signal transmission device from. Incidentally, in FIG. 1, the communication correspondence relationship is schematically shown as a state in which the communication function shielding plate 200 is disposed in the vicinity of the side wall of the car 5 at a position facing the position detector 100 with communication function. As shown in FIG. 2, it is provided in the peripheral part of the ceiling of the car 5, and the local part on the tip side is provided so as to protrude toward the hoistway side.

  FIG. 3 is a diagram illustrating the detailed configuration of the above-described signal transmission device from the upper surface direction including the positional relationship and connection relationship between the positive detector 100 with a communication function and the shielding plate 200 with a communication function. FIG. 4 is a perspective view for explaining the positional relationship associated with the movement of the communication function shielding plate 200 with respect to the communication function positive detector 100 in the detailed configuration of the signal transmission device.

  Referring to FIGS. 3 and 4, the concave portion of the communication function positive detector 100 provided on the hoistway wall portion 6 is provided on the outside serving as a position detection means for detecting the position of the communication function shielding plate 200 in a non-contact manner. In addition to the position-detecting light-emitting unit 11 and the position-detecting light-receiving unit 12 that are provided opposite to each other, a communication light-emitting unit 13 that serves as a first communication means for transmitting and receiving various types of information in a contactless manner by optical communication, and a light-receiving for communication The part 14 is provided facing. Incidentally, the same configuration is applied to the positioners 101 and 102 with communication function shown in FIG. Moreover, the shielding plate 200 with a communication function enters the concave portions of the positive detectors 100, 101, and 102 with a communication function, respectively, and is used for position detection irradiated from the position detection light emitting unit 11 to the position detection light receiving unit 12. As a second communication means for transmitting and receiving various information in a non-contact manner by optical communication between the communication light emitting section 13 and the communication light receiving section 14 of the first communication means in a state where the light beam (beam) of the first communication means is shielded. A working communication light receiving unit 21 and a communication light emitting unit 22 are provided. That is, in this state, the shielding plate with communication function 200 includes the communication light receiving unit 21 at the position of one main surface facing the communication light emitting unit 13 and the other main surface facing the communication light receiving unit 14. The communication light emitting unit 22 is provided at the position.

  The communication light emitting unit 13 and the communication light receiving unit 14 serving as the first communication unit of the positive detector 100 with the communication function, and the communication light emitting unit 22 serving as the second communication unit of the shielding plate 200 with the communication function and the communication unit. The light receiving unit 21 transmits and receives various information by optical communication in a non-contact manner using each modulated light. Specifically, the communication light-emitting unit 13 and the communication light-receiving unit 14 of the first communication means of the positive detector 100 with a communication function have a certain destination floor as the shielding plate 200 with a communication function moves up and down of the car 5. Of the shielding plate 200 with a communication function at the position detected by the position detection light emitting unit 11 and the position detection light receiving unit 12 which are position detection means in the concave portion of the communication function positive detector 100. When various information is transmitted / received between the communication light receiving unit 21 and the communication light emitting unit 22 of the communication means by optical communication, the communication light emitting unit 13 of the first communication means receives the communication light reception of the second communication means. The communication light-emitting unit 22 of the second communication means performs optical communication with the communication light-receiving unit 14 of the first communication means as the communication partner.

  By the way, for example, the communication function positive detector 100 shown in FIG. 1 is used for the fifth floor in the hoistway as displayed on the call destination registered floor of the car position display device 51 in FIG. When the car 5 stops on the fifth floor, the shielding plate 200 with a communication function enters the concave portion. Further, the other example of the positive detector 101 with communication function shown in FIG. 1 is for the fourth floor in the hoistway, and similarly, the positive detector 102 with communication function is for the third floor in the hoistway.

  Referring to FIG. 3, the communication light emitting unit 13 of the first communication means of the positive detector 100 with a communication function includes the opening / closing operation of the car door 53 of the car 5 from the control panel 31 and the car position display means 51. In response to the control signal in the serial communication format for controlling the display operation of the car, the communication light receiving unit 21 of the second communication means receives the opening / closing operation of the car door 53 of the car 5 and the car position display means. An operation instruction signal for instructing the display operation 51 is output. On the other hand, the communication light-emitting unit 22 of the second communication means receives a registration operation instruction for performing registration to the target destination floor and an opening / closing operation instruction for the car door 53 from the operation panel 52 in the car 5. An operation instruction signal in the serial communication format related to the operation instruction including the input is received, and from the communication light receiving unit 14 of the first communication means, an operation / device state signal indicating the operation of the device in the car 5 and the device state is received. Is output, and the operation / device state signal is input to the control panel 31. Further, a position detection instruction signal for instructing position detection from the control panel 31 is input to the position detection light emitting unit 11 of the position detector 100 with communication function, and the position detection signal is received from the position detection light receiving unit 12 in response thereto. The position detection signal is input to the control panel 31 as a positive detector output.

  Next, with reference to each figure, the basic operation | movement which concerns on the procedure of transmission / reception of the various signals containing the various information in the signal transmission apparatus for tail cordless elevators concerning an Example is demonstrated. First, when the car 5 is in a position (for example, between floors) where the call registration is not performed in the hoistway (for example, between floors), the shielding plate 200 with the communication function enters the concave portion of the positive detector 100 with the communication function. Therefore, the beam bundle irradiated from the position detection light-emitting unit 11 reaches the position detection light-receiving unit 12 without being blocked. In this state, the positive detector 100 with a communication function does not output a position detection signal, and the positive detector output is A signal indicating that the car 5 is not at the stop position is input to the control panel 31.

  On the other hand, when the car 5 is at the stop position of the floor (landing) with call registration in the hoistway, the communication function shielding plate 200 enters the concave portion of the communication function positive detector 100, The beam bundle irradiated from the position detection light emitting unit 11 is shielded and does not reach the position detection light receiving unit 12, and in this state, the positive detector 100 with a communication function outputs a position detection signal and has a positive detector output. A signal indicating that the car 5 is at the stop position is input to the control panel 31. In this way, when the control panel 31 confirms the presence or absence of the output of the positive detector and detects the situation where the shielding plate 200 with the communication function is positioned in the concave portion of the positive detector 100 with the communication function, the control light emitting unit 13 is controlled. A control signal for controlling the opening / closing of the car door 53 of the car 5 and the display of the car position display device 51 toward the communication light receiving unit 21 of the shielding plate with communication function 200 is modulated by a signal converted into a serial communication format. Irradiate the light beam. Thus, when the communication light receiving unit 21 receives the light beam, the car door 53 outputs an operation instruction signal for instructing an opening / closing operation of the car door 53 of the car 5 and a display operation of the car position display means 51. The cage position display means 51 can be controlled by the control panel 31.

  Further, the operation panel 52 in the car 5 converts information related to an operation instruction such as call registration to the destination floor into a serial signal, and controls the communication light emitting unit 22 of the shielding plate 200 with a communication function to provide a communication function. The light beam modulated by the operation instruction signal converted into a serial signal is emitted toward the communication light receiving unit 14 of the positive detector 100. As a result, when the communication light receiving unit 14 receives the light beam, it sends information on operation instructions such as call registration to the destination floor to the control panel 31 as an operation / device state signal. Information regarding operation instructions such as call registration is transmitted to the control panel 31.

  As described above, according to the signal transmission device for a tail cordless elevator according to the embodiment, the position detection provided on the concave portion of the existing detector 1 so as to face the outside for detecting the position of the shielding plate 2 in a non-contact manner. In addition to the light emitting unit 11 for light and the light receiving unit 12 for position detection, a communication light emitting unit 13 for transmitting and receiving various types of information in a non-contact manner by optical communication, and a communication function positive detector 100 provided with a communication light receiving unit 14 facing each other, In the state of entering the concave portion in the existing plate-like shielding plate 2 and shielding the position detecting beam bundle irradiated from the position detecting light emitting unit 11 to the position detecting light receiving unit 12, the communication A communication light receiving unit 21 that transmits and receives various information in a non-contact manner by optical communication between the light emitting unit 13 for communication and the light receiving unit for communication 14, and a shielding plate 200 with a communication function including the communication light emitting unit 22. Have Therefore, it is not necessary to adjust the optical axis with a simple configuration (transmission / reception by optical communication is performed at a position facing each other in parallel with an interval of about several millimeters, and optical axis deviation basically does not occur. Axis adjustment is not required), and bidirectional signal transmission of various information between the car 5 and the control panel 31 can be performed accurately in a non-contact manner, and can be applied to a high-rise building with a long hoistway. It becomes effective.

  The tail cordless elevator signal transmission apparatus described in the embodiment includes a pair of communication light-emitting units 13 and a communication light-receiving unit 14 as first communication means in the concave portion of the positioner 1 in the positive-function detector 100 with a communication function. In the above description, the shielding plate 2 in the shielding plate with communication function 200 also includes a pair of communication light receiving units 21 and a light emitting unit 22 for communication as the second communication unit. And the light receiving unit may be provided so that each member has two or more sets, and the communication light receiving unit may be disposed opposite to the communication light emitting unit. The signal transmission apparatus for elevators is not limited to the form disclosed in the embodiments.

DESCRIPTION OF SYMBOLS 1 Positive detector 2 Shielding board 5 Car 6 Hoistway wall part 11 Position detection light emission part 12 Position detection light reception part 13, 22 Communication light emission part 14, 21 Communication light reception part 30 Guide rail 31 Control panel 32 Wiring 33 Motor 34 Sheave 35 Rope 36 Balance weight 51 Car position display device 52 Operation panel 53 Car door 54 Instrument box 100, 101, 102 Positive detector with communication function 200 Shield with communication function

Claims (3)

It has a function to perform two-way signal transmission of various information in a non-contact manner with the car that moves up and down between each floor in the elevator hoistway installed in the building and the control panel installed in the hoistway, A plurality of positive detectors, each having a concave portion, provided at a predetermined location of the wall of the hoistway and connected to the control panel by a conductor, and detecting the position of the car in the hoistway; In a signal transmission device for a tail cordless elevator, comprising: a plate-like shielding plate attached to a predetermined portion of the car and having a local portion on the tip side that is a free end opposite to the fixed side and passes through the concave portion ,
The concave portions of the plurality of positive detectors are provided with first communication means for transmitting and receiving the various information in a contactless manner in addition to a position detection means for detecting the position of the shielding plate in a contactless manner.
The shielding plate is provided with second communication means for transmitting and receiving the various information without contact with the first communication means,
The first communication means transmits the various information to and from the second communication means at a position where the shielding plate is detected by the position detection means in the concave portion of any one of the plurality of positive detectors. A signal transmission device for a tail cordless elevator, which transmits and receives without contact. The signal transmission device for a tail cordless elevator according to claim 1,
The tail cordless elevator signal transmission device, wherein the first communication unit and the second communication unit transmit and receive the various types of information in a non-contact manner using modulated light. The signal transmission device for a tail cordless elevator according to claim 2,
The tail cordless elevator signal transmission device, wherein the first communication unit and the second communication unit each include a communication light emitting unit and a communication light receiving unit.