JPH07291553A - Elevator - Google Patents

Abstract

PURPOSE:To obviate the entanglement and cut-off of a cable by providing on a cage body a receiving means contacting a trolley wire to receive power supply from the trolley wire and a wireless transmitting and receiving means for giving and taking information signals with each other through a spectrum diffusion system respectively on the shaft side and cage body side. CONSTITUTION:An insulated trolley wire 35 connected to a power source 31 provided on the shaft 5 side is provided along the circulating shift route of car bodies 15-19 provided with a contact 36 contacting always the power supply section of the insulated trolley wire 35 to be electrified. Thus, since a car body controller 37 is electrified by the contact 36, a cable for the power supply is dispensed with. Also, an antenna 39 of a wireless transmitting and receiving means in the shaft is provided on the shaft 5 side and the car body side antenna 40 of the wireless transmitting and receiving means is provided in each of the car bodies 15-19, so that the cable for information communication is dispensed with.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator mainly for carrying people and luggage, and more particularly to an elevator suitable for use in ultra-high-rise buildings.

[0002]

2. Description of the Related Art A conventional elevator is provided with one basket body for mainly carrying a person and luggage inside a shaft, and a linear body such as a wire is made to travel by a driving means to drive the linear body. It is designed to raise and lower the basket connected to. In such an elevator, since only one basket is provided on one shaft, a large number of shafts must be provided when a large number of people are to be transported in a short time. There was a problem that many were needed. Since this tendency becomes larger as the building becomes taller, such an elevator is not suitable for ultra-high-rise buildings.

[0003]

Therefore, the inventors have devised a circulation type elevator having a plurality of basket bodies that independently circulate in the shaft along substantially the same route. By the way, in the conventional elevator, as shown in the schematic view of FIG. 3, a wire 53 having a basket body 51 for accommodating a person and luggage at one end side and a counterweight 52 at the other end side is attached to the upper part of the shaft 54. The cage body 51 is made to travel by the hoist 56 in the elevator machine room 55 provided.
The cable 58 is directly moved from the control board 57 in the elevator machine room 55 to exchange information signals such as control signals with the basket body 51 and supply power to the basket body 51. A system is used in which the above is connected to the basket body 51. When such a conventional system is adopted, it is expected that the cable will be entangled or cut in the circulation type elevator. This is a problem that occurs even if there is only one basket in the case of a circulation type elevator.

Therefore, an object of the present invention is to provide an information signal to and from a basket body satisfactorily without causing entanglement and disconnection of a cable even if the basket body has a basket body that circulates in the shaft along substantially the same route. It is an object of the present invention to provide an elevator capable of exchanging information and supplying power to a basket.

[0005]

In order to achieve the above object, an elevator according to the present invention has a cage body that circulates in a shaft along substantially the same route, and is provided on the shaft side. , A power supply means for supplying power,
A trolley wire that is provided along the route and that is connected to the power feeding means, and a power receiving means that is provided on the basket body and that is in constant contact with the trolley wire to receive power supply from the trolley wire, and the shaft side. And a radio transmission / reception unit which is provided on the basket side and exchanges information signals with each other by a spread spectrum method.

[0006]

According to the elevator of the present invention, the trolley wire connected to the power feeding means provided on the shaft side is provided along the circulation movement route of the car body, and the car body is always in contact with the trolley wire. Further, since the power receiving means for receiving power supply from the trolley wire is provided, a cable for power supply becomes unnecessary. Further, since wireless transmission / reception means are respectively provided on the shaft side and the basket side,
Information signals can be wirelessly exchanged by the spread spectrum method, and a cable for information communication is unnecessary.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An elevator according to an embodiment of the present invention will be described below with reference to FIG. The elevator according to the present embodiment includes a pair of vertical cylinders 1 and 2 which are separated from each other by a predetermined distance and extend in the vertical direction, and an upper cylinder 3 which extends in the horizontal direction and connects the upper sides of the vertical cylinders 1 and 2. , Vertical cylinder part 1,
It has one shaft 5 consisting of a lower tubular portion 4 extending in the horizontal direction that connects the lower portions of the two, and the upper machine chamber 7 is above the predetermined position of the upper tubular portion 3. The upper tubular portion 3 has a drive pulley 8 on the vertical tubular portion 1 side and the vertical tubular portion 2
An idle pulley 9 is provided on the side of the vertical cylinder 2, and an idle pulley 10 is provided on the side of the vertical cylinder 1 on the lower cylinder 4 and a vertical cylinder 2 is provided on the lower cylinder 4.
The idle pulley 11 is provided on the side.

A plurality of sprockets (not shown) are sequentially provided in the drive pulley 8 and the idle pulleys 9 to 11 in the axial direction, and all the sets located in the same plane among these sprockets are loop-shaped. Chain 1
3 (only the chain 13 on the front side of the drawing in FIG. 1 is shown) is wound in a substantially rectangular shape.
Here, the chains 13 and the like may each have a multiple loop structure in order to increase the strength.

Although not shown, the drive pulley 8,
The idle pulleys 9 to 11 and the chain 13 and the like are arranged in the same manner as the idle pulleys 9 to 11 and the chain 13 with a predetermined distance apart on the back side of the paper surface of FIG. And one chain 15 wound around the drive pulley on the far side of the paper in FIG. 1 (not shown), and a basket 16 wound around the other chain 13 wound around the drive pulley 8 in the same manner. However, the cage body 17 is wound around the other chain 13 or the like wound around the drive pulley 8, and the cage body 18 is wound around another chain or the like wound around the drive pulley 8 or the like. The basket bodies 19 are connected to the chains 13 and the like. Here, each of the basket bodies 15 to 19 mainly accommodates a person and a luggage therein, and is connected to a corresponding one such as a chain 13 through a swingable connecting portion 20 provided at an upper portion. There is.

Each drive pulley 8 has a chain 1
3 is provided with a drive sprocket (not shown) independently connected to a sprocket (not shown) correspondingly wound.
These drive sprockets (not shown) include basket bodies 15 to 1
As with 9, the corresponding five drive motors 21 are individually connected via a chain 22 (in FIG. 1, only the drive motor 21 and the chain 22 on the front side of the drawing are shown). .

As a result, the car body 15 is driven by the drive force of the one drive motor 21, the car body 16 is driven by the drive force of the other drive motor 21, and the car body 1 is driven by the drive force of the other drive motor 21.
7, the cage body 18 is driven by the drive force of another drive motor 21, and the cage body 19 is independently driven by the drive force of another drive motor 21.

Then, by driving the drive motor 21, the basket bodies 15 to 19 ascend in the vertical cylinder portion 1, horizontally move in the upper cylinder portion 3 and descend in the vertical cylinder portion 2, and then move to the lower portion. It will be moved in sequence along the closed route of moving horizontally in the tubular portion 4 and rising again.

Here, although not shown, the shaft 5 is
A door is provided for each floor on the left side surface in FIG. 1, and a door is provided for each floor on the right side surface in FIG. Although not shown in the drawings, the baskets 15 to 19 are shown in FIG.
A door used for getting on and off in the ascending stroke is provided on the left side of the above, and a door used for getting on and off at the descending stroke is provided on the right side.

On the left side surface of the shaft 5 in FIG. 1, position sensors 24, which detect the arrival or passage of the cage bodies 15 to 19 and output a signal, and the cage bodies 15 to 19 are located on each floor. A raising call button 25 for calling is provided, and a similar position sensor 24 and a lowering call button 26 are provided on each floor on the right side of the shaft 5 in FIG. All are connected to the central control unit 30, as illustrated by the lower left position sensor 24 and the raising call button 25 in FIG.
The central control device 30 is driven by a power supply 31 which is a power supply means of, for example, 1φ100V provided on the shaft 5 side, and controls the power supply to each drive motor 21 independently. Therefore, it is connected to each inverter 33 provided between each drive motor 21 and a power source 32 of, for example, 3φ200V. As a result, the central control device 30 causes the position sensors 24 and the call buttons 2 to operate.
A control signal is appropriately output to each inverter 33 according to signals from 5, 26 and the basket bodies 15 to 19 to control the drive of each drive motor 21.

Then, the ascending stroke in the vertical tube portion 1 of the circulation route is used for ascending, and the descending stroke in the vertical tube portion 2 is used as descending, and the basket bodies 15 to 19 are used at required floors as required. If it is possible to stop and the required door is opened at the time of stop, the basket bodies 15 to 1 in the ascending or descending direction
There can be a plurality of 9. Therefore, a large number of people can be transported in a short time without providing a large number of shafts.

In this embodiment, an insulated trolley wire 35 having an exposed inner conductor only at the power feeding portion is provided on the outside of the chain 13 along the circulation route of the baskets 15 to 19, and the connection is made. A power supply 31 that drives the central control device 30 is connected to a power supply portion (not shown) of the edge trolley wire 35. On the other hand, each of the basket bodies 15 to 19 is provided with a contactor 36 which is a power receiving means which is always in contact with the power feeding portion of the insulated trolley wire 35 and receives power supply from the insulated trolley wire 35. A basket body control device 37 provided in the basket bodies 15 to 19 is connected to the contactor 36. In addition,
The insulated trolley wire 35 may be provided for each basket body 15 to 19, or one may be shared by all the basket bodies 15 to 19.

The central control unit 30 also includes a transmission unit 38.
The transmission device 38 is connected to the vertical tube portions 1 and 2.
Further, for example, it is connected to the in-shaft antenna 39 provided at a predetermined pitch so as to be on each floor. In addition, each of the baskets 15 to 19 receives an information signal transmitted from the transmission device 38 through the in-shaft antenna 39 by the central control device 30 or directs the information signal to the in-shaft antenna 39. Antenna 4 on the basket side for transmission
0s are respectively provided on the upper portion, and the basket body side antenna 40 is connected to the basket body control device 37. The in-shaft antenna 39 and the basket-side antenna 40 constitute the wireless transmitting / receiving means of this embodiment.

The car body control device 37 is driven by a power source supplied from the insulated trolley wire 35 via the contact 36, and at the same time, turns on the lights in the car bodies 15 to 19 and drives the doors to open and close. , Necessary information is displayed, and an information signal transmitted from the in-shaft antenna 39 is wirelessly received to control, for example, the timing of opening and closing the door, and the baskets 15 to 19. Position or environment video, etc. on a display device not shown,
It is designed so that the communication voice for communication is sent to the inside of the basket. In addition, the basket body control device 37, for example, the basket body 15
Information signals such as a stop floor push button, an emergency stop push button, a cage body state detection sensor and a door open / close state sensor, or information signals such as a communication voice for communication are provided from the basket body side antenna 40 to the antenna inside the shaft. In response to this, the central control device 30 appropriately controls the driving of each drive motor 21 and sends a communication voice for communication.
In this way, the central control device 30 controls the respective cage bodies 15 to 19
Information is wirelessly exchanged with the basket body control device 37. In addition, basket 1
In order to eliminate the influence of interference due to multi-pulses in the shaft 5 due to the presence of a plurality of 5 to 19,
In the present embodiment, the transmission device 38 and each basket body control device 37.
However, they are designed to communicate with each other using a spread spectrum method.

Here, the spread spectrum (SS) system is
It spreads the transmission signal band beyond the frequency band required for information transmission using a periodic code for spreading, and its spreading method is DS (Direct Sequence Modulatio
n: Direct sequence modulation) and FH (Frequency Hopping Modulat)
Ion: frequency hopping modulation) can be broadly divided into two categories: interference resistance, multipath resistance, confidentiality (the existence of a signal is unknown to a third party), and confidentiality (unless you know the spread code). Unable to demodulate), code division multiple random connection, excellent distance measurement. FIG. 2 is a system configuration diagram of this spread spectrum system. What is different from the conventional communication system is spread modulation using a spread code and despread demodulation. On the transmitting side, the spectrum is spread with a spreading factor of tens, hundreds to thousands of times that of the original frequency band of the narrow band modulated wave. The receiving side reproduces the original narrow band modulated wave using the same spreading code as the transmitting side, and demodulates the digital information. FIG. 2A shows the spectrum of the spread spectrum signal (SS signal) at the receiver input and the spectrum of the narrow band interference wave, and FIG. 2B shows the spectrum seen at the input of the narrow band demodulator after despreading. is there. In the despread spectrum, the relationship between the desired signal and the interference signal is reversed, the desired signal becomes a narrow band signal, and the narrow band interference signal is spread. The spread interference signal is easily removed by the bandpass filter in the preceding stage of the narrow band demodulator. If wireless communication is performed in the elevator shaft 5, so-called multipath interference, which causes interference between paths due to different paths of radio waves between transmission and reception, occurs in the spread spectrum method. Since the frequency is wide, even if a part of the frequency band is lost due to multipath interference, other frequency components remain,
It is possible to prevent the loss of information data, and thus the multipath resistance is excellent. In the spread spectrum method, different spread codes are assigned to each transmission signal,
By utilizing the difference, multiple communications can be freely performed even in the same frequency band and the same time zone. Therefore, if different spreading codes are used for multiple cage bodies in the shaft 5, different signals can be sent to each cage body at the same time. Can be done (code division multiple random connection).

Here, in the upper machine room 7, there is provided a machine room monitor sensor 41 for monitoring whether there is any abnormality in the upper machine room 7, for example.
When the abnormality is detected, the central control unit 3 sends a detection signal.
Then, the central controller 30 performs processing such as stopping the driving of the drive motor 21.

As described above, according to the elevator of this embodiment, the insulated trolley wire 35 connected to the power source 31 provided on the shaft 5 side is provided along the circulation movement route of the basket bodies 15 to 19. Since the basket bodies 15 to 19 are provided with the contactor 36 which is a power receiving means which is always in contact with the power feeding portion of the insulated trolley wire 35 and receives power supply from the insulated trolley wire 35, the baskets are provided. Body control device 37
Since power is supplied from this contactor 36, a cable for power supply is unnecessary. Further, the shaft 5 side is provided with an in-shaft antenna 39 which is a wireless transmission / reception means, and each basket body 15 to 19 is provided with a basket body side antenna 40 which is a wireless transmission / reception means. Information signals can be exchanged, and a cable for information communication is unnecessary.

Therefore, in the elevator of this embodiment, since the power supply cable and the information communication cable are not present between the shaft 5 side and the basket bodies 15 to 19, the cables are entangled and cut. Needless to say, it is possible to satisfactorily exchange information signals between the shaft 5 side and the basket bodies 15 to 19 and supply power to the basket bodies 15 to 19. In addition, by providing a plurality of in-shaft antennas 39 in the shaft 5 as described above, the positions of the basket bodies 15 to 19 can be known at the same time. Further, by performing the spread spectrum communication, the communication can be performed without being affected by the interference due to the multi-pulses in the shaft 5. In the above embodiments, the case where a plurality of baskets are circulated along substantially the same route has been described as an example, but the same is true for a single basket.

[0023]

According to the elevator of the present invention, the trolley wire connected to the power feeding means provided on the shaft side is provided along the circulation movement route of the basket body, and the basket body is always provided with the trolley wire. Since a power receiving means that is in contact with the power receiving unit and receives power supply from the trolley wire is provided, a cable for power supply is unnecessary. Further, since the wireless transmission / reception means are provided on the shaft side and the basket body side, respectively, information signals can be wirelessly exchanged by the spread spectrum method, and a cable for information communication is unnecessary. Therefore, since the power supply cable and the information communication cable are not provided between the shaft side and the basket body side, the cables are not entangled or cut, and the information between the shaft side and the basket body is excellent. It can exchange signals and supply power to the basket.

[Brief description of drawings]

FIG. 1 is a system configuration diagram schematically showing an elevator according to an embodiment of the present invention.

FIG. 2 is a system configuration diagram of a spread spectrum system adopted in an elevator according to an embodiment of the present invention.

FIG. 3 is a system configuration diagram schematically showing a conventional elevator.

[Explanation of symbols]

 5 Shaft 15 to 19 Basket Body 31 Power Supply (Power Supply Means) 35 Insulated Trolley Wire (Trolley Wire) 36 Contact (Power Reception Means) 39 Shaft Antenna (Wireless Transmission / Reception Means) 40 Basket Side Antenna (Wireless Transmission / Reception Means)

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Kazuhiro Sato 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Construction Co., Ltd. (72) Inventor Shinji Horiguchi 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Construction Incorporated (72) Inventor Yoshio Sakai 1070 Ige, Katsuta-shi, Ibaraki Hitachi Ltd. Mito Plant

Claims (1)

[Claims] 1. An elevator having a basket body that circulates in a shaft along substantially the same route, comprising: a power supply unit for supplying power, which is provided on the shaft side, and is provided along the route. A trolley wire connected to the power supply means, a power receiving means provided on the basket body, constantly contacting the trolley wire to receive power supply from the trolley wire, and provided on the shaft side and the basket body side, respectively. An elevator comprising: a radio transmitting / receiving means for exchanging information signals with each other by a spread spectrum system.