WO2021152833A1

WO2021152833A1 - Cable for communication

Info

Publication number: WO2021152833A1
Application number: PCT/JP2020/003731
Authority: WO
Inventors: 麦平田中
Original assignee: 三菱電機ビルテクノサービス株式会社
Priority date: 2020-01-31
Filing date: 2020-01-31
Publication date: 2021-08-05
Also published as: CN114982138B; JPWO2021152833A1; JP6930672B1; CN114982138A

Abstract

A cable (1) for communication is provided with a leaky coaxial cable (11) and a long lamp unit (12). The lamp unit (12) is supported by the leaky coaxial cable (11). The lamp unit (12) is provided with a plurality of white LEDs (15). The plurality of white LEDs (15) are arranged so as to follow along the leaky coaxial cable (11). Use of the cable (1) for communication makes it possible to improve a work environment in a dark place such as the hoistway (2) of an elevator.

Description

Communication cable

The present invention relates to a cable used for communication.

In the elevator installation work, various work is performed in the hoistway formed in the building. The working environment is poor because sufficient light is not secured inside the hoistway. Such a problem is also pointed out in Patent Document 1, for example.

Japanese Patent Application Laid-Open No. 9-77424

In recent years, communication devices have also been used in elevator installation work. However, it is difficult for radio waves from the outside to reach the inside of the elevator hoistway. In recent years, unstable radio wave conditions in the hoistway have also become a factor in deteriorating the working environment. Such a problem can occur not only in the installation work of the elevator but also in the work performed in the same environment.

This invention was made to solve the above-mentioned problems. An object of the present invention is to provide a communication cable that can improve a working environment in a dark place such as an elevator hoistway.

The communication cable according to the present invention includes a leaky coaxial cable and a long lamp unit supported by the leaky coaxial cable. The lamp unit includes a plurality of light emitters. The plurality of illuminants are arranged along the leaky coaxial cable.

The communication cable according to the present invention includes a leaky coaxial cable, a long lamp unit arranged along the leaky coaxial cable, and a fixing means for integrating the leaky coaxial cable and the lamp unit. The lamp unit includes a plurality of light emitters. The plurality of illuminants are arranged along the leaky coaxial cable.

By using the communication cable according to the present invention, the working environment in a dark place such as an elevator hoistway can be improved.

It is a figure which shows the example of performing the installation work of an elevator using the communication cable in Embodiment 1. FIG. It is a figure which shows the example of the communication cable. It is a figure which shows another example of a communication cable. It is a figure which shows another example of a communication cable. It is a figure which shows another example of a communication cable. It is a figure which shows another example of a communication cable. It is a figure which shows another example of performing the installation work of an elevator using a plurality of communication cables. It is a figure which shows another example of performing the installation work of an elevator using a plurality of communication cables.

The present invention will be described with reference to the accompanying drawings. Overlapping description will be simplified or omitted as appropriate. In each figure, the same reference numerals indicate the same parts or corresponding parts.

Embodiment 1.
FIG. 1 is a diagram showing an example in which an elevator installation work is performed using the communication cable 1 according to the first embodiment. In the example shown in FIG. 1, the machine room 3 is formed above the hoistway 2 of the elevator. One end of the communication cable 1 is connected to the router 4. The router 4 is provided in the machine room 3. The communication cable 1 extends downward from the router 4 and is suspended in the hoistway 2. The communication cable 1 reaches the pit 2a of the hoistway 2. The other end of the communication cable 1 is placed in the pit 2a.

The monitoring terminal 5 of the construction company in charge of the installation work is connected to the router 4 via the specific network 6. The network 6 is, for example, an IP network. The IP network is a communication network that uses IP (Internet Protocol) as a communication protocol. The network 6 may be an open network, but is preferably a closed network.

FIG. 2 is a diagram showing an example of the communication cable 1. The communication cable 1 includes a leaky coaxial cable 11, a lamp unit 12, and a binding band 13.

One end of the leaky coaxial cable 11 is connected to the router 4. The leaky coaxial cable 11 extends downward from the router 4 and is suspended in the hoistway 2. The leaky coaxial cable 11 reaches the pit 2a of the hoistway 2. A terminating resistor 11a is provided at the other end of the leaky coaxial cable 11. The terminating resistor 11a is placed in the pit 2a. Radio waves for communication are radiated from the leaky coaxial cable 11 to the hoistway 2.

For example, a worker who installs an elevator carries a communication device 7 and works on the hoistway 2. Data is transmitted and received between the communication device 7 and the leaky coaxial cable 11. The data transmitted from the communication device 7 is transmitted to the monitoring terminal 5 via the leaky coaxial cable 11, the router 4, and the network 6.

The communication device 7 is, for example, a smartphone. The communication device 7 may be a camera installed in the hoistway 2. The communication device 7 may be a wearable camera carried by a worker. When the communication device 7 is a wearable camera, image data is transmitted from the communication device 7 to the leaky coaxial cable 11. An image taken by the wearable camera is displayed on the monitoring terminal 5.

The lamp unit 12 is supported by the leaky coaxial cable 11. The lamp unit 12 is a long member including a plurality of light emitters. The lamp unit 12 is arranged along the leaky coaxial cable 11. FIG. 2 shows an example in which the lamp unit 12 is fixed to the leaky coaxial cable 11 by a binding band 13, and the leaky coaxial cable 11 and the lamp unit 12 are integrated. The binding band 13 is an example of a means for fixing the lamp unit 12 to the leaky coaxial cable 11 and integrating the leaky coaxial cable 11 and the lamp unit 12.

As an example, the lamp unit 12 includes a tape substrate 14 and a plurality of white LEDs 15. The lamp unit 12 may include a switch 16. The white LED 15 is an example of the above light emitting body. For example, the white LED 15 is arranged along the leaky coaxial cable 11. It is preferable that the white LED 15 is not fixed in a specific range and is arranged over the entire leakage coaxial cable 11. In the example shown in FIG. 2, the white LEDs 15 are provided on the tape substrate 14 at regular intervals. In the state shown in FIG. 1, the white LEDs 15 are arranged in a straight line above and below the hoistway 2.

The electric power for lighting the white LED 15 is supplied from, for example, the router 4. A power plug may be connected to the tape substrate 14 to obtain electric power for lighting the white LED 15 from a commercial power source. When the communication cable 1 is wound around a drum and transported, the drum may be provided with an outlet for inserting a power plug.

The switch 16 is an example of a means for switching the lighting and extinguishing of the white LED 15. For example, if the switch 16 is pressed while the white LED 15 is off, the white LED 15 is turned on. Similarly, when the switch 16 is pressed while the white LED 15 is lit, the white LED 15 is turned off.

FIG. 2 shows an example in which the switch 16 is provided at the end of the tape substrate 14. In the example shown in FIG. 2, the switch 16 is arranged in the machine room 3. The worker who performs the installation work operates the switch 16 in the machine room 3 when starting the work in the hoistway 2, and turns on the white LED 15.

As another example, the switch 16 may be provided in the intermediate portion of the tape substrate 14 so that the operator can operate the switch 16 on the hoistway 2. For example, the switch 16 is arranged between two specific light emitters among the plurality of light emitters provided on the tape substrate 14. In the example shown in FIG. 2, the plurality of white LEDs 15 include a white LED 15m and a white LED 15n. The white LED 15m and the white LED 15n are adjacent to each other. The switch 16 may be arranged between the white LED 15m and the white LED 15n.

By using the communication cable 1, the working environment in a dark place such as the hoistway 2 can be improved. That is, the communication cable 1 includes the leaky coaxial cable 11. Radio waves for communication are radiated from the leaky coaxial cable 11 to the hoistway 2. Therefore, in the hoistway 2, data can be transmitted from the communication device 7 to the monitoring terminal 5. If necessary, it is also possible to transmit data from the monitoring terminal 5 to the communication device 7 in the hoistway 2.

Further, the communication cable 1 includes a lamp unit 12. The inside of the hoistway 2 can be illuminated by the illumination light radiated from the lamp unit 12. If the communication cable 1 is arranged above and below the hoistway 2, the lamp unit 12 can brighten the entire hoistway 2.

The other functions that can be adopted by the communication cable 1 will be described below. The communication cable 1 may be adopted by combining a plurality of functions shown below.

FIG. 3 is a diagram showing another example of the communication cable 1. In the example shown in FIG. 3, the switch 16 is not shown. Similarly, in the examples shown in FIGS. 4 to 6 described later, the switch 16 is not shown. In the example shown in FIG. 3, the lamp unit 12 is spirally wound around the leaky coaxial cable 11. The lamp unit 12 is fixed to the leaky coaxial cable 11 by a binding band 13 in a state of being spirally wound around the leaky coaxial cable 11.

In the example shown in FIG. 2, a plurality of white LEDs 15 provided in the lamp unit 12 are arranged vertically in a straight line. Therefore, when the communication cable 1 suspended from the machine room 3 is viewed from above, light is emitted from any white LED 15 in the same direction. In order to illuminate the entire hoistway 2 with the white LED 15, the communication cable 1 must be installed in consideration of the orientation of the white LED 15.

On the other hand, in the example shown in FIG. 3, the white LEDs 15 are arranged along the leaky coaxial cable 11 and are scattered around the leaky coaxial cable 11. When the communication cable 1 suspended from the machine room 3 is viewed from above, the light from the white LED 15 spreads radially around the leaky coaxial cable 11. In the example shown in FIG. 3, the entire hoistway 2 can be illuminated by the light from the white LED 15 simply by suspending the communication cable 1 from the machine room 3. Therefore, the time and effort required to install the communication cable 1 can be reduced.

FIG. 4 is a diagram showing another example of the communication cable 1. In the example shown in FIG. 4, the communication cable 1 includes a leaky coaxial cable 11, a plurality of sets of lamp units 12, and a binding band 13. FIG. 4 shows an example in which the communication cable 1 includes two sets of lamp units 12 as the simplest example.

In the following description, one lamp unit is marked with an A after the sign, and the other lamp unit is marked with a B after the sign to distinguish them from each other. That is, in the example shown in FIG. 4, the communication cable 1 includes a lamp unit 12A and a lamp unit 12B. The lamp unit 12A includes a tape substrate 14A and a plurality of white LEDs 15A. The lamp unit 12A may include a switch 16A. The lamp unit 12B includes a tape substrate 14B and a plurality of white LEDs 15B. The lamp unit 12B may include a switch 16B.

The white LEDs 15A provided in the lamp unit 12A are arranged in a row along the leaky coaxial cable 11. When the communication cable 1 is suspended from the machine room 3, the white LEDs 15A are aligned in a straight line above and below the hoistway 2. Similarly, the white LEDs 15B provided in the lamp unit 12B are arranged in a row along the leaky coaxial cable 11. When the communication cable 1 is suspended from the machine room 3, the white LEDs 15B are arranged in a straight line above and below the hoistway 2.

As shown in FIG. 4, the white LED 15A and the white LED 15B are arranged in parallel. When the communication cable 1 suspended from the machine room 3 is viewed from above, the white LED 15B is arranged so as to face the direction opposite to the direction in which the white LED 15A faces. Therefore, in the example shown in FIG. 4, the entire hoistway 2 can be illuminated by the light from the white LED 15A and the light from the white LED 15B simply by suspending the communication cable 1 from the machine room 3. Even in the example shown in FIG. 4, the time and effort required to install the communication cable 1 can be reduced.

FIG. 5 is a diagram showing another example of the communication cable 1. In the example shown in FIG. 5, the communication cable 1 includes a heat shrinkable tube 17 as a means for fixing the lamp unit 12 to the leaky coaxial cable 11 and integrating the leaky coaxial cable 11 and the lamp unit 12. The lamp unit 12 and the leaky coaxial cable 11 penetrate the heat shrink tube 17. The lamp unit 12 is fixed to the leaky coaxial cable 11 by the heat shrinkable tube 17 coming into close contact with the periphery of the lamp unit 12 and the leaky coaxial cable 11.

It is preferable that the white LED 15 is not covered by the heat shrink tube 17. However, if the heat-shrinkable tube 17 is transparent, the white LED 15 may be covered with the heat-shrinkable tube 17. In the example shown in FIG. 5, the lamp unit 12 may be spirally wound around the leaky coaxial cable 11. In the example shown in FIG. 5, the communication cable 1 may include a plurality of sets of lamp units 12.

FIG. 6 is a diagram showing another example of the communication cable 1. The communication cable 1 shown in FIG. 2 is suspended in the hoistway 2 by holding, for example, the upper end of the leaky coaxial cable 11. Therefore, when the communication cable 1 is used in the hoistway 2 of a high-rise building or the like, an excessive load is applied to the leaky coaxial cable 11.

In the example shown in FIG. 6, the communication cable 1 further includes a wire 18 in addition to the leaky coaxial cable 11, the lamp unit 12, and the binding band 13. The wire 18 is an example of a support member that supports the leaky coaxial cable 11. The support member is, for example, a long thread-like or string-like member, and is arranged along the leaky coaxial cable 11.

FIG. 6 shows an example in which the leaky coaxial cable 11, the lamp unit 12, and the wire 18 are integrated by being bundled by a binding band 13. In the example shown in FIG. 6, the communication cable 1 is suspended from the hoistway 2 by holding the upper end of the wire 18. In the example shown in FIG. 6, it is possible to prevent an excessive load from being applied to the leaky coaxial cable 11. For example, it is possible to prevent the coating of the leaky coaxial cable 11 from being damaged.

In the example shown in FIG. 6, the lamp unit 12 may be spirally wound around the leaky coaxial cable 11. In the example shown in FIG. 6, the communication cable 1 may include a plurality of sets of lamp units 12. Further, the heat shrinkable tube 17 may be used instead of the binding band 13.

In this embodiment, an example in which the communication cable 1 is used in the installation work of the elevator has been described. This is just an example. The communication cable 1 may be used in the repair work of the elevator. Further, in order to improve the working environment in a dark place, the communication cable 1 may be used in construction other than the elevator. At this time, the communication cable 1 may be installed sideways.

When the communication cable 1 is used for the installation work of the elevator, the worker removes the communication cable 1 when the installation work is completed. Since the leaky coaxial cable 11 and the lamp unit 12 are integrated by a fixing means such as a binding band 13, the communication cable 1 can be wound around the drum when the communication cable 1 is removed. Therefore, the communication cable 1 can be easily transported and stored.

The communication cable 1 may be used for elevator maintenance after the installation work is completed. In such a case, the operator does not have to remove the communication cable 1 after the installation work is completed. When the communication cable 1 is left in the hoistway 2 even after the installation work, it is preferable to turn off the white LED 15 while the normal service is performed by the elevator. If the lamp unit 12 includes the switch 16, the white LED 15 can be easily turned on and off.

In the present embodiment, an example in which the leaky coaxial cable 11 and the lamp unit 12 are integrated by a fixing means such as a binding band 13 has been described. The lamp unit 12 may be integrated with the leaky coaxial cable 11 by being adhesively fixed to the leaky coaxial cable 11. The lamp unit 12 may be integrated with the leaky coaxial cable 11 by another method.

In the present embodiment, an example in which one communication cable 1 is arranged above and below the hoistway 2 has been described. When installing an elevator in a high-rise building or the like, a plurality of communication cables 1 may be connected to secure a required length. In such a case, it is preferable that the communication cables 1 are connected to each other by a connector.

FIG. 7 is a diagram showing another example of installing an elevator using a plurality of communication cables 1. In the example shown in FIG. 7, the router 4 is provided in the middle portion of the hoistway 2. Two communication cables 1 are connected to the router 4. In the following description with respect to FIG. 7, a C is added after the code for one communication cable, and a D is added after the code for the other communication cable to distinguish them from each other. For example, the communication cable 1C includes a leaky coaxial cable 11C, a lamp unit 12C, and a binding band 13C. The communication cable 1D includes a leaky coaxial cable 11D, a lamp unit 12D, and a binding band 13D. As the communication cable 1, any of the examples shown in FIGS. 2 to 6 may be adopted.

One end of the communication cable 1C is connected to the router 4. The communication cable 1C extends downward from the router 4 and is suspended in the hoistway 2. The communication cable 1C reaches the pit 2a of the hoistway 2. The other end of the communication cable 1 is placed in the pit 2a. A terminating resistor 11aC is provided at the end of the leaky coaxial cable 11C.

One end of the communication cable 1D is connected to the router 4. The communication cable 1D extends upward from the router 4. The communication cable 1D reaches the top of the hoistway 2. As shown in FIG. 7, the communication cable 1D may reach the machine room 3. The communication cable 1D is suspended from the top of the hoistway 2 or the machine room 3. A terminating resistor 11aD is provided at the end of the leaky coaxial cable 11D.

In the example shown in FIG. 7, the distance from the router 4 to the tip of the communication cable 1 can be shortened. Therefore, it is possible to prevent the radio wave strength from being lowered at the tip of the communication cable 1. The example shown in FIG. 7 is particularly effective when installing an elevator in a high-rise building or the like.

FIG. 8 is a diagram showing another example of installing an elevator using a plurality of communication cables 1. In the example shown in FIG. 8, three communication cables 1 are arranged in the hoistway 2. In the following description with respect to FIG. 8, one communication cable has an E after the code, the other communication cable has an F after the code, and the remaining communication cables have an E. On the other hand, G is added after the code to distinguish them. For example, the communication cable 1E includes a leaky coaxial cable 11E, a lamp unit 12E, and a binding band 13E. The communication cable 1F includes a leaky coaxial cable 11F, a lamp unit 12F, and a binding band 13F. The communication cable 1G includes a leaky coaxial cable 11G, a lamp unit 12G, and a binding band 13G. As the communication cable 1, any of the examples shown in FIGS. 2 to 6 may be adopted.

In the example shown in FIG. 8, the router 4 is provided in the machine room 3. One end of the communication cable 1E is connected to the router 4. The communication cable 1E extends downward from the router 4 and is suspended in the hoistway 2. The other end of the communication cable 1E is arranged, for example, at a height H1 from the bottom surface of the pit 2a. The communication cable 1E does not reach the pit 2a. A terminating resistor 11aE is provided at the end of the leaky coaxial cable 11E.

The communication cable 1F is connected to the router 4 via the approach cable 19. Radio waves do not leak from the approach cable 19. One end of the approach cable 19 is connected to the router 4. The approach cable 19 extends downward from the router 4 and is suspended in the hoistway 2. The other end of the approach cable 19 is arranged, for example, at a height H1 from the bottom surface of the pit 2a.

One end of the communication cable 1F is connected to the other end of the approach cable 19. The communication cable 1F extends downward from the approach cable 19 and is suspended in the hoistway 2. The other end of the communication cable 1F is arranged at a height H2 from the bottom surface of the pit 2a, for example. The communication cable 1F does not reach the pit 2a. A terminating resistor 11aF is provided at the end of the leaky coaxial cable 11F.

The communication cable 1G is connected to the router 4 via the approach cable 20. Radio waves do not leak from the approach cable 20. One end of the approach cable 20 is connected to the router 4. The approach cable 20 extends downward from the router 4 and is suspended in the hoistway 2. The other end of the approach cable 20 is arranged, for example, at a height H2 from the bottom surface of the pit 2a.

One end of the communication cable 1G is connected to the other end of the approach cable 20. The communication cable 1G extends downward from the approach cable 20 and is suspended in the hoistway 2. The communication cable 1G reaches the pit 2a of the hoistway 2. The other end of the communication cable 1G is placed in the pit 2a. A terminating resistor 11aG is provided at the end of the leaky coaxial cable 11G.

Even in the example shown in FIG. 8, the length of each communication cable 1 can be shortened as in the example shown in FIG. 7. Therefore, it is possible to prevent the radio wave strength from being lowered at the tip of the communication cable 1. The example shown in FIG. 8 is particularly effective when installing an elevator in a high-rise building or the like.

1 communication cable, 2 hoistway, 2a pit, 3 machine room, 4 router, 5 monitoring terminal, 6 network, 7 communication device, 11 leaky coaxial cable, 11a terminating resistor, 12 lamp unit, 13 binding band, 14 tape Board, 15 white LED, 16 switch, 17 heat shrink tube, 18 wire, 19 approach cable, 20 approach cable

Claims

Leaky coaxial cable and
A long lamp unit supported by the leaky coaxial cable,
With
The lamp unit includes a plurality of light emitters and has a plurality of light emitters.
The plurality of light emitters are communication cables arranged along the leaky coaxial cable.
The communication cable according to claim 1, which is arranged along the leaky coaxial cable and further includes a long support means for supporting the leaky coaxial cable.
Leaky coaxial cable and
A long lamp unit arranged along the leaky coaxial cable, and
A fixing means for integrating the leaky coaxial cable and the lamp unit,
With
The lamp unit includes a plurality of light emitters and has a plurality of light emitters.
The plurality of light emitters are communication cables arranged along the leaky coaxial cable.
Further provided with a long supporting means for supporting the leaky coaxial cable, which is arranged along the leaky coaxial cable.
The communication cable according to claim 3, wherein the fixing means integrates the leaky coaxial cable, the lamp unit, and the support means.
The communication cable according to any one of claims 1 to 4, wherein the lamp unit further includes a switching means for switching the lighting and extinguishing of the plurality of light emitters.
The communication cable according to claim 5, wherein the switching means is arranged between two specific light emitters among the plurality of light emitters.
The communication cable according to any one of claims 1 to 6, wherein the lamp unit is spirally wound around the leaky coaxial cable.
The communication cable according to any one of claims 1 to 6, wherein the plurality of light emitters are scattered around the leaky coaxial cable.
The plurality of illuminants are
A plurality of first light emitters arranged in a row along the leaky coaxial cable,
A plurality of second light emitters arranged in a row along the leaky coaxial cable and parallel to the plurality of first light emitters,
The communication cable according to any one of claims 1 to 6, comprising the above.