CN114982138A

CN114982138A - Cable for communication

Info

Publication number: CN114982138A
Application number: CN202080094550.8A
Authority: CN
Inventors: 田中麦平
Original assignee: Mitsubishi Electric Building Techno Service Co Ltd
Current assignee: Mitsubishi Electric Building Solutions Corp
Priority date: 2020-01-31
Filing date: 2020-01-31
Publication date: 2022-08-30
Anticipated expiration: 2040-01-31
Also published as: JPWO2021152833A1; CN114982138B; WO2021152833A1; JP6930672B1

Abstract

The communication cable (1) has a leaky coaxial cable (11) and an elongated lamp unit (12). The lamp unit (12) is supported by the leaky coaxial cable (11). The lamp unit (12) has a plurality of white LEDs (15). A plurality of white LEDs (15) are arranged along the leaky coaxial cable (11). By using the communication cable (1), the working environment in a dark place such as a hoistway (2) of an elevator can be improved.

Description

Communication cable

Technical Field

The present invention relates to a cable for communication.

Background

In the installation of an elevator, various operations are performed in a hoistway formed in a building. Sufficient brightness is not secured inside the hoistway, and thus the working environment is poor. Such a problem is also pointed out in patent document 1, for example.

Documents of the prior art

Patent document

Patent document 1: japanese laid-open patent publication No. 9-77424

Disclosure of Invention

Problems to be solved by the invention

In recent years, communication equipment has also been used in elevator installation. However, it is difficult for radio waves from the outside to reach the inside of the hoistway of the elevator. In recent years, instability of the radio wave state in the hoistway also becomes a factor that deteriorates the working environment. Such a problem may occur not only in installation of the elevator but also in construction performed under the same environment.

The present invention has been made to solve the above problems. The purpose of the present invention is to provide a communication cable that can improve the working environment in a dark place such as an elevator hoistway.

Means for solving the problems

The communication cable of the present invention includes: a leaky coaxial cable; and an elongated lamp unit supported by the leaky coaxial cable. The lamp unit has a plurality of luminous bodies. A plurality of lights are disposed along the leaky coaxial cable.

The communication cable of the present invention includes: a leaky coaxial cable; an elongated lamp unit disposed along the leaky coaxial cable; and a fixing unit which integrates the leaky coaxial cable and the lamp unit. The lamp unit has a plurality of luminous bodies. A plurality of lights are disposed along the leaky coaxial cable.

Effects of the invention

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

Drawings

Fig. 1 is a diagram showing an example of an installation construction of an elevator using a communication cable in embodiment 1.

Fig. 2 is a diagram showing an example of a cable for communication.

Fig. 3 is a diagram showing another example of the communication cable.

Fig. 4 is a diagram showing another example of the communication cable.

Fig. 5 is a diagram showing another example of the communication cable.

Fig. 6 is a diagram showing another example of the communication cable.

Fig. 7 is a diagram showing another example of the installation construction of the elevator using a plurality of communication cables.

Fig. 8 is a diagram showing another example of the installation construction of the elevator using a plurality of communication cables.

Detailed Description

The invention is described with reference to the accompanying drawings. The repeated explanation is appropriately simplified or omitted. In the drawings, the same reference numerals denote the same or equivalent parts.

Embodiment mode 1

Fig. 1 is a diagram showing an example of an installation construction of an elevator using the communication cable 1 in embodiment 1. In the example shown in fig. 1, a machine room 3 is formed above a hoistway 2 of an elevator. One end of the communication cable 1 is connected to the router 4. The router 4 is installed 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 a pit 2a of the hoistway 2. The other end of the communication cable 1 is provided in the pit 2 a.

A monitoring terminal 5 of a construction company responsible for installation and construction is connected to the router 4 via a specific network 6. The network 6 is, for example, an IP network. The IP network is a communication network using 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 has a leaky coaxial cable 11, a lamp unit 12, and a bundling 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 termination resistor 11a is provided in the pit 2 a. Radio waves for communication are radiated from the leaky coaxial cable 11 to the hoistway 2.

For example, an operator who performs installation work of an elevator carries the communication device 7 to perform work in 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 also be a wearable camera carried by the operator. In the case where the communication device 7 is a wearable camera, image data is transmitted from the communication device 7 to the leaky coaxial cable 11. The image captured by the wearable camera is displayed on the monitor terminal 5.

The lamp unit 12 is supported by the leaky coaxial cable 11. The lamp unit 12 is an elongated member having a plurality of luminous bodies. The lamp unit 12 is disposed along the leaky coaxial cable 11. Fig. 2 shows the following example: the lamp unit 12 is fixed to the leaky coaxial cable 11 by a banding band 13, and the leaky coaxial cable 11 and the lamp unit 12 are integrated. The binding band 13 is an example of a unit that fixes the lamp unit 12 to the leaky coaxial cable 11 and integrates the leaky coaxial cable 11 and the lamp unit 12.

For example, the lamp unit 12 includes a strip substrate 14 and a plurality of white LEDs 15. The lamp unit 12 may also have a switch 16. The white LED15 is an example of the light emitter. For example, the white LED15 is disposed along the leaky coaxial cable 11. The white LED15 is preferably disposed over the entire leaky coaxial cable 11, and is not fixed to a specific range. 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 over the upper and lower sides of the hoistway 2.

The power for lighting the white LED15 is supplied from the router 4, for example. A power plug may be connected to the tape substrate 14 in advance to obtain electric power for lighting the white LED15 from a commercial power supply. When the communication cable 1 is wound around a reel and transported, the reel may be provided with a receptacle into which a power plug is inserted.

The switch 16 is an example of a means for switching on and off of the white LED 15. For example, when the switch 16 is pressed in a state where the white LED15 is turned off, the white LED15 is turned on. Similarly, when the switch 16 is pressed in a state where the white LED15 is lit, the white LED15 is turned off.

Fig. 2 shows an example in which the switch 16 is provided at an end portion of the strip substrate 14. In the example shown in fig. 2, the switch 16 is disposed in the machine room 3. When the worker who performs the installation work starts the work in the hoistway 2, the worker operates the switch 16 in the machine room 3 to turn on the white LED 15.

As another example, the switch 16 may be provided in the middle portion of the strip-shaped substrate 14 so that an operator can operate the switch 16 in the hoistway 2. For example, the switch 16 is disposed between specific 2 light emitters among the plurality of light emitters provided on the strip substrate 14. In the example shown in fig. 2, the plurality of white LEDs 15 includes a white LED15m and a white LED15 n. The white LED15m and the white LED15n are adjacent to each other. The switch 16 may be disposed between the white LED15m and the white LED15 n.

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, data can be transmitted from the communication device 7 to the monitoring terminal 5 in the hoistway 2. Data can also be transmitted from the monitoring terminal 5 to the communication equipment 7 in the hoistway 2 as necessary.

Further, the communication cable 1 includes a lamp unit 12. The interior of the hoistway 2 can be illuminated by the illumination light radiated from the lamp unit 12. If the communication cable 1 is disposed over the upper and lower sides of the hoistway 2, the entire hoistway 2 can be lit by the lamp unit 12.

Next, other functions that can be adopted by the communication cable 1 will be described. The communication cable 1 may be combined with a plurality of functions described 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. In the examples shown in fig. 4 to 6 described later, the switch 16 is also omitted from the drawings. 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 leakage coaxial cable 11 by the binding band 13 in a state of being spirally wound around the leakage coaxial cable 11.

In the example shown in fig. 2, the plurality of white LEDs 15 provided in the lamp unit 12 are arranged linearly in the vertical direction. Therefore, when the communication cable 1 suspended from the machine room 3 is viewed from above, light is radiated in the same direction from all the white LEDs 15. In order to illuminate the entire hoistway 2 with the white LED15, 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 dispersed around the leaky coaxial cable 11. When the communication cable 1 suspended from the equipment room 3 is viewed from above, light from the white LED15 spreads radially around the leaky coaxial cable 11. In the example shown in fig. 3, the entire hoistway 2 can be illuminated by light from the white LED15 by simply suspending the communication cable 1 from the machine room 3. Therefore, the labor and time required for installing 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 has a leaky coaxial cable 11, a plurality of sets of lamp units 12, and a binding band 13. As the simplest example, fig. 4 shows an example in which the communication cable 1 has 2 sets of lamp units 12.

In the following description, one lamp unit is denoted by a and the other lamp unit is denoted by B, respectively. 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 has a band-shaped substrate 14A and a plurality of white LEDs 15A. The lamp unit 12A may also have a switch 16A. The lamp unit 12B has a band substrate 14B and a plurality of white LEDs 15B. The lamp unit 12B may also have a switch 16B.

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

As shown in fig. 4, the white LED15A and the white LED15B are juxtaposed. When the communication cable 1 suspended from the machine room 3 is viewed from above, the white LED15B is disposed so as to face in a direction opposite to the direction in which the white LED15A faces. Therefore, in the example shown in fig. 4, the entire hoistway 2 can be illuminated by the light from the white LED15A and the light from the white LED15B only by suspending the communication cable 1 from the machine room 3. The example shown in fig. 4 can also reduce the labor and time required to install the communication cable 1.

Fig. 5 is a diagram showing another example of the communication cable 1. In the example shown in fig. 5, the communication cable 1 has a heat shrinkable tube 17 as a unit 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 shrinkable tube 17. The heat shrinkable tube 17 is closely attached to the lamp unit 12 and the periphery of the leaky coaxial cable 11, whereby the lamp unit 12 is fixed to the leaky coaxial cable 11.

Preferably the white LED15 is not covered by the heat shrink tube 17. However, if the heat-shrinkable tube 17 is transparent, the white LEDs 15 may also be covered by 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 have a plurality of sets of the 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 portion 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 bundling 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 linear or string-like long member, and is disposed 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 bound by the 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 portion 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, the sheath damage of the leaky coaxial cable 11 can be prevented.

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 have a plurality of sets of the lamp units 12. Further, the heat-shrinkable tube 17 may be used instead of the banding band 13.

In the present embodiment, an example in which the communication cable 1 is used in the installation of an elevator is described. This is an example. The communication cable 1 may be used in the reconstruction of an elevator. In addition, the communication cable 1 may be used in construction other than an elevator to improve the working environment in a dark place. In this case, the communication cable 1 may be arranged in a horizontal direction.

When the communication cable 1 is used in the installation of the elevator, the operator removes the communication cable 1 after the installation 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 a drum when the communication cable 1 is removed. Therefore, the communication cable 1 can be easily transported and stored.

After the installation, the communication cable 1 may be used for maintenance of the elevator. In this case, the operator may not remove the communication cable 1 after the installation. When the communication cable 1 is left in the hoistway 2 after installation, the white LED15 is preferably turned off during a period when the elevator is in normal service. If the lamp unit 12 has the switch 16, the turning on and off of the white LED15 can be easily performed.

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 the banding band 13 is described. The lamp unit 12 may be bonded and fixed to the leaky coaxial cable 11 to be integrated with the leaky coaxial cable 11. The lamp unit 12 may also be integrated with the leaky coaxial cable 11 by other methods.

In the present embodiment, an example in which 1 communication cable 1 is disposed above and below the hoistway 2 has been described. When the installation of the elevator is performed in a high-rise building or the like, a plurality of communication cables 1 may be connected to ensure a necessary length. In this case, the communication cables 1 are preferably connected to each other by a connector.

Fig. 7 is a diagram showing another example of the installation construction of the elevator using the plurality of communication cables 1. In the example shown in fig. 7, the router 4 is provided in an intermediate portion of the hoistway 2. The router 4 is connected to 2 communication cables 1. In the following description with reference to fig. 7, one communication cable is denoted by reference numeral C, and the other communication cable is denoted by reference numeral D. For example, the communication cable 1C has a leaky coaxial cable 11C, a lamp unit 12C, and a bundling band 13C. The communication cable 1D has 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 fig. 2 to 6 may be used.

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 provided in the pit 2 a. A terminating resistor 11aC is provided at an 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 also 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 an end of the leaky coaxial cable 11D.

In the example shown in fig. 7, the distance from the router 4 to the end of the communication cable 1 can be shortened. Therefore, the radio wave intensity can be suppressed from decreasing at the end portion of the communication cable 1. The example shown in fig. 7 is particularly effective when the elevator is installed in a high-rise building or the like.

Fig. 8 is a diagram showing another example of the installation construction of the elevator using the plurality of communication cables 1. In the example shown in fig. 8, 3 communication cables 1 are disposed in a hoistway 2. In the following description with reference to fig. 8, one communication cable is denoted by reference numeral E, the other communication cable is denoted by reference numeral F, and the remaining communication cables are denoted by reference numeral G, and they are distinguished. For example, the communication cable 1E has a leaky coaxial cable 11E, a lamp unit 12E, and a bundling band 13E. The communication cable 1F has a leaky coaxial cable 11F, a lamp unit 12F, and a bundling band 13F. The communication cable 1G has a leaky coaxial cable 11G, a lamp unit 12G, and a bundling band 13G. As the communication cable 1, any of the examples shown in fig. 2 to 6 may be used.

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 disposed at a height H1 from the bottom surface of the pit 2a, for example. The communication cable 1E does not reach the pit 2 a. A terminating resistor 11aE is provided at an end of the leaky coaxial cable 11E.

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

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

The communication cable 1G is connected to the router 4 via the proximity cable 20. Electric waves do not leak from the proximity cable 20. One end of the proximity 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 portion of the proximity cable 20 is disposed at a height H2 from the bottom surface of the pit 2a, for example.

One end of the communication cable 1G is connected to the other end of the proximity cable 20. The communication cable 1G extends downward from the proximity cable 20 and is suspended in the hoistway 2. The communication cable 1G reaches a pit 2a of the hoistway 2. The other end of the communication cable 1G is provided in the pit 2 a. A terminating resistor 11aG is provided at an 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, the radio wave intensity can be suppressed from decreasing at the end portion of the communication cable 1. The example shown in fig. 8 is particularly effective when the elevator is installed in a high-rise building or the like.

Industrial applicability

Description of the reference symbols

1: a cable for communication; 2: a hoistway; 2 a: a pit; 3: a machine room; 4: a router; 5: a monitoring terminal; 6: a network; 7: a communication device; 11: a leaky coaxial cable; 11 a: a termination resistor; 12: a lamp unit; 13: a bundling belt; 14: a band-shaped substrate; 15: a white LED; 16: a switch; 17: a heat shrinkable tube; 18: a wire; 19: access to the cable; 20: close to the cable.

Claims

1. A communication cable includes:

a leaky coaxial cable; and

an elongated lamp unit supported by the leaky coaxial cable,

the lamp unit has a plurality of light emitters,

the plurality of lights are arranged along the leaky coaxial cable.

2. The communication cable according to claim 1,

the communication cable further includes an elongated support unit that is disposed along the leaky coaxial cable and supports the leaky coaxial cable.

3. A communication cable includes:

a leaky coaxial cable;

an elongated lamp unit disposed along the leaky coaxial cable; and

a fixing unit that integrates the leaky coaxial cable and the lamp unit,

the lamp unit has a plurality of light emitters,

the plurality of lights are arranged along the leaky coaxial cable.

4. The communication cable according to claim 3,

the communication cable further includes an elongated support unit that is disposed along the leaky coaxial cable and supports the leaky coaxial cable,

the fixing unit integrates the leaky coaxial cable, the lamp unit, and the support unit.

5. The communication cable according to any one of claims 1 to 4,

the lamp unit further has a switching unit for switching on and off of the plurality of light-emitting bodies.

6. The communication cable according to claim 5,

the switching unit is configured between 2 specific light emitters in the plurality of light emitters.

7. The communication cable according to any one of claims 1 to 6,

the lamp unit is spirally wound around the leaky coaxial cable.

8. The communication cable according to any one of claims 1 to 6,

the plurality of lights are dispersed around the leaky coaxial cable.

9. The communication cable according to any one of claims 1 to 6,

the plurality of luminous bodies have:

a plurality of 1 st luminaires arranged in a column along the leaky coaxial cable; and

and a plurality of 2 nd light emitters arranged in a row along the leaky coaxial cable in parallel with the plurality of 1 st light emitters.