Signal transmission device

Abstract

To enable communication using a curing sheet as a communication medium through a signal transmission device.SOLUTION: The transmission device uses a communication wire arranged inside a curing sheet as a transmission medium for communication signals, and includes a modulator to be in contact with the communication wire. The modulator converts communication signals within the curing sheet into communication signals of other standards, and vice versa. Such design alleviates constraints on the material, size, transmission efficiency, transmission speed and the like of the communication wire arranged inside the curing sheet, thereby enabling the use of the curing sheet as a communication medium.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to a signal transmission device using a protective sheet. [Background technology]

[0002] Advances in IT (Information Technology) have led to the use of various IT tools at construction sites (including construction sites and renovation sites other than new construction). When building a communication environment at a construction site, it is possible to use wireless LAN (Local Area Network) devices, but there are problems with installing base stations on the ground floor, as wireless signals have difficulty propagating upwards, making it difficult to connect at high altitudes.

[0003] On the other hand, when installing wired communication cables outdoors, damage and deterioration of the communication cables due to rain and wind is unavoidable, and sheets or covers are used to prevent this. Also, when installing wired communication cables, they may be damaged during the construction process by being hit or caught on something. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2008-306787 A Summary of the Invention [Problem to be solved by the invention]

[0005] Patent Document 1 is an example that discloses a sheet for protecting a communication cable. As in Patent Document 1, a cover for protecting the communication cable may be installed to prevent the communication cable from being cut at a construction site.

[0006] On the other hand, at construction sites, protective sheets (sometimes called site sheets, scaffolding sheets, protective curtains, etc., but there is no unified name, so we will just call them protective sheets) are installed on the structures being worked on to prevent scattering, so if it were possible to integrate the protective sheet with the communication cable protection sheet, it would be possible to prevent situations such as construction equipment getting caught on the communication cable and damaging it. Furthermore, by integrating it with the protective sheet, it is possible to reduce the amount of work required by on-site workers to install the communication cable.

[0007] The present invention has been proposed in consideration of the above problems, and aims to provide a transmission device that includes a communication cable inside a protective sheet that is installed at construction sites for the purpose of preventing scattering, etc. [Means for solving the problem]

[0008] In order to achieve the above objective, the signal transmission device of the present disclosure uses a communication line arranged within a protective sheet as a transmission medium for a communication signal, and is equipped with a modulator in contact with the communication line, which converts the communication signal within the protective sheet into a communication signal of another standard, and vice versa. Effect of the Invention

[0009] According to the present disclosure, by installing protective sheets at a construction site, it is possible to easily set up a communication environment at the construction site. [Brief description of the drawings]

[0010] [Figure 1] 1 is a diagram showing an overview of a signal transmission device 10. FIG. [Diagram 2] FIG. 2 is a diagram showing a specific example of a system configuration of a modulator 100. [Diagram 3] 2 is a diagram showing a specific configuration of a signal transmission device 30. FIG. [Figure 4] 3. FIG. 4 is a diagram showing a specific configuration of the front side (opposite side to FIG. 3) of the protective sheet 300. [Diagram 5] 13 is a diagram showing a specific configuration for forming a communication path of the selection unit connection sheet 340. FIG. [Figure 6] 13 is a diagram showing a specific configuration for not forming a communication path of the selection unit connection sheet 340. FIG. [Figure 7] 11 is a diagram showing an example of a signal transmission device 20 in which a plurality of protective sheets 300 are arranged. FIG. [Figure 8] FIG. 2 is a diagram showing a specific example of how the communication line 210 is woven. [Figure 9] FIG. 4 is a diagram showing a specific example of a protective sheet 400 in which a communication line 410 is installed in a location other than near the center. [Figure 10] 13 is a diagram showing a specific example in which a communication line 410 is installed at an edge of a protective sheet 400. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. Note that the embodiments described below do not unduly limit the contents of the present disclosure described in the claims. In addition, not all components shown in the embodiments are necessarily essential components of the present disclosure.

[0012] (Basic configuration) 1 is a diagram showing the basic configuration of a signal transmission device 10. The signal transmission device 10 is composed of a modulator 100 and a protective sheet 200, and has a communication line 210 inside the protective sheet 200. Furthermore, the protective sheet 200 generally often has eyelets 201 for tying it to scaffolding or the like.

[0013] The modulator 100 serves as a modulator / demodulator for mutually modulating and demodulating communication signals using other standards such as Ethernet (registered trademark), other formats, and other modulation / demodulation methods, and communication signals for communication within the curing sheet. The modulator 100 is connected to the communication line 210 on the curing sheet side, and is connected to an Ethernet cable on the Ethernet side. The modulator 100 converts Ethernet communication signals into signals for communication within the curing sheet, and conversely, converts signals for communication within the scaffolding into Ethernet communication signals.

[0014] The protective sheet 200 is a sheet that is generally used at construction sites, etc. It is often made of nylon or polyester, but is not limited to these materials. It is also generally made in a mesh shape.

[0015] The eyelet portion 201 is provided for the purpose of tying together multiple protective sheets or for tying the protective sheet to scaffolding or a structure, but is not an essential element.

[0016] The communication line 210 is a transmission medium composed of metal wires for transmitting communication signals such as electric signals and optical signals. The communication line 210 may be fixed by tying it with thread after being placed on the surface of the protective sheet 200, but it is preferable that the communication line 210 is woven into the fibers that make up the protective sheet. This allows the protective sheet itself to serve as a protective cover for the communication line 210, making it possible to reduce damage and deterioration of the communication line. That is, while a general Ethernet cable has metal wires covered with materials such as polyvinyl chloride, polyethylene, and fluororesin, the communication line 210 is also covered by weaving it into the protective sheet to prevent damage and deterioration of the communication line.

[0017] The modulator 100 serves as a modulator / demodulator for mutually modulating and demodulating communication signals for communication within the curing sheet and communication signals of other general-purpose standards such as Ethernet. The modulator 100 is connected to the communication line 210 on the curing sheet side, and to an Ethernet cable on the Ethernet side. The modulator 100 converts communication signals of other standards such as Ethernet into signals for communication within the curing sheet, and conversely, converts signals for communication within the curing sheet into communication signals of other standards such as Ethernet. (Since the general-purpose communication standard is Ethernet, hereinafter other communication standards will be referred to as Ethernet.)

[0018] 2 is a diagram showing a specific example of a system configuration of the modulator 100. The modulator 100 includes a processor 110, a memory 120, a platform side communication IF 130 (IF is used as an abbreviation for Interface), and an Ethernet side communication IF 140.

[0019] The processor 110 is hardware for executing an instruction set written in a program, and is composed of an arithmetic unit, a register, peripheral circuits, etc. The memory 120 is for temporarily storing programs and data processed by the programs, etc., and is realized by a volatile memory such as a DRAM (Dynamic Random Access Memory). The scaffolding side communication IF 130 is an interface for the modulator 100 to transmit and receive signals flowing in the curing sheet and to communicate with another modulator 100. The Ethernet side communication IF 140 is an interface for transmitting and receiving signals to communicate with an external device that complies with Ethernet.

[0020] When converting an Ethernet communication signal into a communication signal within the protective sheet, the modulator 100 processes the signal received from the Ethernet side communication IF 140 by the processor 110 using a program read from the memory 120, and after modulation, transmits the signal from the scaffolding side communication IF 130.

[0021] When converting a signal for communication within the protective sheet into an Ethernet communication signal, the modulator 100 processes the signal received from the scaffolding side communication IF 130 by the processor 110 using a program read from the memory 120, and after demodulation, transmits the signal from the Ethernet side communication IF 140.

[0022] As a specific modulation method of the modulator 100, when modulating an Ethernet communication signal into a signal for communication within the protective sheet, a conventional communication signal conversion method may be used, for example, Amplitude Shift Keying (ASK), Phase Shift Keying (PSK), Frequency Shift Keying (FSK), Quadrature Amplitude Modulation (QAM), etc.

[0023] The modulator 100 may further combine secondary modulation means such as Orthogonal Frequency Division Multiplexing (OFDM), Direct Sequence (DS), Frequency Hopping (FH), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), and Code Division Multiple Access (CDMA) to achieve high-speed communication, thereby achieving high speed and resistance to noise.

[0024] The specific demodulation method of the modulator 100, that is, when demodulating an intra-scaffolding communication signal into an Ethernet communication signal, is to perform processing for demodulation by performing a conversion that is the reverse of the method used for modulation, thereby performing demodulation processing of the communication signal.

[0025] The reason for using the modulator 100 is that when installing the communication line 210 inside the protective sheet, it is unlikely that the Ethernet-standard communication line 210 can be woven into the protective sheet 200, taking into account the thickness of the communication line, etc. In the present invention, the modulator 100 is used to reduce restrictions on the material, size, transmission efficiency, transmission speed, etc. of the communication line, making it possible to use a communication cable of any size, and thus enabling users to use communication devices that comply with the Ethernet standard while forming the inside of the protective sheet as a communication path.

[0026] (Configuration achieved by multiple curing sheets) At construction sites, protective sheets are generally installed to prevent scattering, but this protective sheet is rarely made up of a single sheet, and in most cases, multiple protective sheets are combined to cover the entire structure. Note that protective sheets are often 5.4m long and 1.8m wide, but this is not limited to this size. When multiple protective sheets are used, as shown in Figure 1, the structure is not based on a single protective sheet, but rather on a combination of multiple protective sheets, with the associated installation of communication paths using communication lines and transmitters.

[0027] FIG. 3 is a diagram showing an example of the configuration of a protective sheet 300 for realizing a signal transmission device 30 by combining a plurality of protective sheets 300. In the protective sheet 300, a communication line 310 is installed vertically from near the center of each of the long side and short side directions, and the communication line is parallel to the long side direction or the short side direction, and the communication line 310 is installed in a substantially cross shape as a whole. (For convenience, the long side direction and the short side direction are used, but this does not exclude a square, and in the case of a square, one direction and a direction parallel to it are interpreted as the long side direction, and another direction and a direction parallel to it are interpreted as the short side direction.) In addition, a connection unit 320 may be installed at the end part of the communication line 310 installed in one protective sheet. In addition, a selection unit 330 may be installed between the center point of the communication line 310 installed in the substantially cross shape and the connection unit 320.

[0028] The connection part 320 is provided for connecting to the curing sheet 200 and / or the modulator 100. Generally, a curing sheet used at a construction site is formed by connecting a plurality of sheets. At this time, the grommet part 201 of the curing sheet 300 is used, and a string or the like is passed through the grommet part 201 to connect the curing sheets to each other or to construction equipment such as scaffolding. When the curing sheets are thus bound together, the connection part 320 is provided near the contact point between each side of the curing sheet and the communication line so that the communication line 310 can form a path between the bound curing sheets, and the connection part 320 of the adjacent curing sheets contacts each other to form a communication path. In addition, when considering connecting a plurality of curing sheets 200, it is preferable to arrange them at the same position in the curing sheet 200, such as at the center of each of the long side and short side directions.

[0029] In addition, in order for the communication line 310 to form a path when multiple protective sheets 300 are connected using the connection portion 320, it is preferable to expose the communication line 310 on the front or back surface near the connection portion 320. Furthermore, the communication line 310 may be exposed on both the front and back surfaces of the protective sheet 300 near the connection portion 320. By exposing the communication line 310, it becomes possible to easily form a communication path when multiple protective sheets 300 are overlapped. Note that the back surface of the protective sheet 200 here refers to the surface located on the structure side when the protective sheet is installed on the structure, and the front surface refers to the outside opposite the structure.

[0030] The connection portion 320 may be formed in a substantially rectangular or circular shape, and may be formed in a planar shape rather than a linear shape, so as to facilitate connection of the communication path.

[0031] A magnetic material may be used for the connection portion 320. By using a magnetic material, it is possible to easily connect the connection portions 320 of multiple protective sheets and to improve the stability of the formed communication path by preventing the connection portions 320 from being easily separated by an external force.

[0032] When connecting multiple protective sheets 300, the connecting parts 320 may be connected using a tool that applies physical pressure, such as a clamp or clip. Also, when connecting multiple protective sheets 300, they may be fixed using hook-and-loop fasteners, hooks, etc.

[0033] The selection section 330 is a disconnection point of the communication line 310 formed in a substantially cross shape, provided between the center point of the substantially cross shape and each side of the curing sheet or the connection section 320. The connection section 320 can form a communication path by installing an additional communication line at the disconnection point, and it is possible to select whether or not to form a communication path. Since the communication line 310 is disconnected in the selection section 330, a communication path can be formed in any two of the four selection sections 330 in the curing sheet, thereby selecting the path of the communication line 310 in the curing sheet.

[0034] 3, if the four connection units 320 and selection units 330 are respectively referred to as upper, right, lower, and left in a clockwise direction starting from the top, then by connecting the upper and lower selection units 330, a communication path is formed between the upper connection unit 320 and the lower connection unit 320. Also, by connecting the lower and right selection units 330, a communication path is formed between the right connection unit 320 and the lower connection unit 320.

[0035] The shape of the connection portion of the selection unit 330 with the communication line 310 may be, for example, substantially rectangular or circular, and formed in a planar shape rather than a linear shape, to facilitate connection of the communication path.

[0036] A magnetic material may be used for the selection unit 330. By using a magnetic material, the selection unit 330 can be easily connected and is not easily detached by an external force, thereby improving the stability of the formed communication path.

[0037] The selection unit 330 may connect the communication path using a device that applies physical pressure, such as a clamp or clip.

[0038] Fig. 4 is a diagram showing the front side (the side opposite to the structure side) of the protective sheet 300 opposite to Fig. 3. As shown in Fig. 4, the connection part 320 may be formed in a substantially rectangular or circular shape on the surface of the protective sheet 300 so as to facilitate connection of the communication path.

[0039] 5 is a diagram showing a configuration of a selection unit connection sheet 340 for forming a communication path in the selection unit 330. The selection unit 330 may form a communication path using a clamp or a clip as described above, but may also form a communication path using the selection unit connection sheet 340.

[0040] The selection unit connection sheet 340 includes a communication line 310, a contact portion 341, and a fixing portion 342. The selection unit connection sheet 340 can form a communication path in the selection unit 330 by fixing the surface on which the communication path is formed to the selection unit 330.

[0041] The communication line 310 is made of the same material as the communication line 310 of the protective sheet 300.

[0042] The shape of the contact portion 341 may be, for example, substantially rectangular or substantially circular, and may be formed in a planar shape rather than a linear shape, to facilitate connection of the communication path. The shape of the connection portion is preferably the same as the shape of the connection portion of the selection portion 330 with the communication line 310. The contact portion 341 forms a communication path at the disconnected portion of the selection portion 330 by coming into contact with the connection portion of the selection portion 330 with the communication line 310.

[0043] A magnetic material may be used for the contact portion 341. By using a magnetic material, it is possible to easily connect the selection portion 330 and the contact portion 341 and to prevent them from being easily separated by an external force, thereby improving the stability of the formed communication path.

[0044] The fixing portion 342 is a member for fixing the selection portion connection sheet 340 onto the selection portion 330 of the protective sheet 300. The fixing portion 342 uses a hook-and-loop fastener, a hook, or the like to fix the selection portion connection sheet 340 onto the selection portion 330 of the protective sheet 300. By providing the fixing portion 342 in this manner, it is possible to prevent the communication path from being interrupted and to form a stable communication path.

[0045] Fig. 6 is a diagram showing an example of the configuration of the opposite side of the selection section connection sheet 340 from Fig. 5. Here, the side shown in Fig. 5 is called the formed side, and the side shown in Fig. 6 is called the disconnected side. As shown in Fig. 6, the opposite side from Fig. 5 has only the fixing section 342. In other words, by fixing this disconnected side so as to be in contact with the selection section 330 of the protective sheet 300, it is possible to keep the communication path disconnected without forming it.

[0046] As shown in Figure 6, by constructing the selection section connection sheet 340, the selection section connection sheet 340 is always formed on the selection section 330, and by configuring the selection section connection sheet 340 so that either the formation surface or the disconnection surface is in contact with the protective sheet 300, it becomes possible to form or disconnect a communication path, and it is also possible to fix the selection section connection sheet 340 to the protective sheet 300 to prevent it from being lost.

[0047] 7 is a diagram showing an example of a signal transmission device 20 in the case where a plurality of protective sheets 300 are arranged. In this diagram, the protective sheets 300 are configured with a total of eight sheets, two vertically and four horizontally, and a selection section 330 is formed in each protective sheet 300 so that a communication path is formed between two modulators 100.

[0048] The four selection units 330 of the protective sheet 300 are referred to as the top, right, bottom, and left in a clockwise direction starting from the top. In the example of Fig. 7, the leftmost protective sheet 300 on the bottom row forms a communication path to the right and bottom, the second and third protective sheets 300 from the left on the bottom row form communication paths to the left and right, the rightmost protective sheet 300 on the bottom row forms communication paths to the left and top, and the rightmost protective sheet 300 on the top row forms communication paths to the top and bottom, thereby forming communication paths between two modulators 100.

[0049] Fig. 8 is a diagram showing a specific example of how to weave the communication lines 210. As shown in Fig. 8, the protective sheet 200 is often configured in a mesh shape. Therefore, by weaving the communication lines into these fibers, the protective sheet 200 itself can be used as a protective cover, and by making the shape less uneven, it is possible to protect the communication lines 210 from damage and deterioration.

[0050] With the above-described configuration, the protective sheet at the construction site can be used as a tool for forming a communication path by installing the communication line 210 on the protective sheet 200. This allows workers to easily form a communication path, and the protective sheet 200 itself serves as a protective cover, making it possible to protect the communication line 210 from damage and deterioration.

[0051] (Modification) Considering that the protective sheet 300 already described will be combined with a plurality of sheets, it is desirable to form the connection portion 320 on the inside of the sheet, near the center of the protective sheet 300, so that it is easy to align the positions when joining the plurality of sheets. However, it is not always necessary to install the communication path near the center of the protective sheet, and the following describes an example of installing the communication path in another part.

[0052] FIG. 9 shows a specific example of the protective sheet 400 in which the communication line 410 is installed at a position other than the center. As shown in FIG. 9, the communication line 410 may be installed at a position other than the center of each side. The communication line 410 is installed vertically from a predetermined position from the end of each side of the protective sheet 400, two communication lines are installed parallel to two opposing sides of the protective sheet 400, and two communication lines are installed parallel to other opposing two sides. At a construction site, a plurality of protective sheets 400 are used to protect the site, so considering that the protective sheet 400 will be connected to other protective sheets 400, it is desirable that the communication line 410 is arranged at such a predetermined position. In addition, by providing a connection unit 420 for connecting to other protective sheets, it is possible to easily connect the communication line 410 to other protective sheets. The connection unit 420 may be configured similarly to the connection unit 320. In addition, it is preferable to provide a selection unit 430 so that the communication path can be selected. The selection unit 430 may be configured similarly to the selection unit 330, and is configured by providing a break in the middle of each communication line.

[0053] 10 shows a specific example of installing communication lines 410 at the edge of protective sheet 400. Protective sheets used at construction sites mostly have a main body 401 and a folded-back portion 402. Main body 401 is often made of mesh-like fibers, and folded-back portion 402 is made by folding back the end of protective sheet 400 to make it double, which has the effect of increasing strength.

[0054] When installing the communication line 410 at the end of the protective sheet 400, it is desirable to provide a connection section 420 and a selection section 430, as in Fig. 9. Providing the connection section 420 makes it easy to connect the communication line 410 to other protective sheets. However, since the communication line 410 is installed inside the turn-back section 402, the selection section 430 must be able to select whether to form or not form a communication path for the communication line 410 from outside the turn-back section 402 using a mechanism such as a switch.

[0055] When installing the communication line 410 at the end of the protective sheet 400, the communication line 410 can be placed without being woven into the main body portion 401 by passing the communication line 410 through the folded portion 402. This makes it possible to easily install the communication line 410, while preventing damage and deterioration of the communication line 410 by being protected by the folded portion.

[0056] Although the preferred embodiment of the present disclosure has been described above, the present disclosure is not limited to the specific embodiment, and the present disclosure includes the invention described in the claims and its equivalents. In addition, the configurations of the devices described in the above embodiments can be appropriately combined as long as no technical contradiction occurs. [Explanation of symbols]

[0057] 10, 20, 30...signal transmission device, 100...modulator, 110...processor, 120...memory, 130...scaffolding side communication IF, 140...Ethernet side communication IF, 200, 300, 400...covering sheet, 201...grommet portion, 210, 310, 410...communication line, 320, 420...connection portion, 330, 430...selection portion, 330...selection portion connection sheet, 341...contact portion, 342...fixing portion, 401...main body portion, 402...folded portion

Claims

1. 1. An apparatus for transmitting a communication signal, comprising: The communication lines arranged inside the protective sheet are used as a transmission medium for communication signals. a modulator in contact with the communication line; The modulator is a transmission device that converts the communication signal in the protective sheet into a communication signal of another standard, and vice versa.

2. 1. An apparatus for transmitting a communication signal, comprising: The communication lines arranged inside the protective sheet are used as a transmission medium for communication signals. a modulator in contact with the communication line; The communication line is arranged by weaving it into the fibers constituting the curing sheet, The modulator is a transmission device that converts the communication signal in the protective sheet into a communication signal of another standard, and vice versa.

3. 1. An apparatus for transmitting a communication signal, comprising: A communication line is installed vertically from the center of each side of a substantially rectangular curing sheet and arranged in a substantially cross shape as a whole, and is used as a transmission medium for communication signals. a modulator adapted to contact the communication line; The modulator is a transmission device that converts the communication signal in the protective sheet into a communication signal of another standard, and vice versa.

4. 1. An apparatus for transmitting a communication signal, comprising: The communication lines are installed vertically from the center of each side of a substantially rectangular curing sheet and are arranged in a substantially cross shape overall. a modulator adapted to contact the communication line; The communication line has a selection portion in which the line is interrupted between the center point of the communication line installed in a substantially cross shape and the contact point of each side of the curing sheet, The selection unit is configured to form a communication path by installing a communication line at the disconnection point, The modulator is a transmission device that converts the communication signal in the protective sheet into a communication signal of another standard, and vice versa.

5. 1. An apparatus for transmitting a communication signal, comprising: The communication lines are installed vertically from the center of each side of a substantially rectangular curing sheet and are arranged in a substantially cross shape overall. a modulator adapted to contact the communication line; The communication line has a selection section in which a line is interrupted between the center point of the approximately cross shape and the contact points with each side of the curing sheet, and a connection section that forms a planar communication path near the contact points between each side of the curing sheet and the communication line to make it easier to form a communication path between other curing sheets, The selection unit is configured to be able to form a communication path by installing a communication line at a disconnection point, The modulator is a transmission device that converts the communication signal in the protective sheet into a communication signal of another standard, and vice versa.

6. 1. An apparatus for transmitting a communication signal, comprising: By combining and connecting multiple protective sheets, a communication path is formed. The protective sheet has communication lines installed vertically from the center of each side and arranged in a substantially cross shape as a whole, a modulator adapted to contact the communication line; The communication line has a selection section in which a line is interrupted between the center point of the approximately cross shape and the contact points with each side of the curing sheet, and a connection section that forms a planar communication path near the contact points between each side of the curing sheet and the communication line to make it easier to form a communication path between other curing sheets, The selection unit is configured to be able to form a communication path by installing a communication line at a disconnection point, The protective sheet has a communication path formed by contacting the connection portion with an adjacent protective sheet, The modulator is a transmission device that converts the communication signal in the protective sheet into a communication signal of another standard, and vice versa.

7. 1. An apparatus for transmitting a communication signal, comprising: The communication lines are installed vertically from predetermined positions on the ends of each side of a substantially rectangular curing sheet, two communication lines are installed parallel to two opposing sides of the curing sheet, and two communication lines are installed parallel to the other two opposing sides of the curing sheet, and are used as a transmission medium for communication signals; Each of the communication lines has a selection section in which the line is interrupted, The selection unit is configured to form a communication path by installing a communication line at the disconnection point, a modulator adapted to contact the communication line; The modulator is a transmission device that converts the communication signal in the protective sheet into a communication signal of another standard, and vice versa.

8. 1. An apparatus for transmitting a communication signal, comprising: A substantially rectangular curing sheet is installed vertically from a predetermined position at the end of each side, and two communication lines are installed parallel to two opposing sides of the curing sheet, and two communication lines are installed parallel to another two opposing sides of the curing sheet to be used as a transmission medium for communication signals. a modulator adapted to contact the communication line; The communication lines each have a selection section in which the line is interrupted along the way, and a connection section in which a communication path is formed in a planar manner near the contact point between each side of the curing sheet and the communication line to facilitate the formation of a communication path between the curing sheet and another curing sheet; The selection unit is configured to form a communication path by installing a communication line at the disconnection point, The modulator is a transmission device that converts the communication signal in the protective sheet into a communication signal of another standard, and vice versa.

9. The transmission device according to claim 5, 6 or 8, wherein the selection section and / or the connection section are made of a magnetic material so that the communication line is less likely to peel off when a communication path is formed.

10. The transmission device according to any one of claims 4 to 8, further comprising a selection section connection sheet having one surface capable of forming a communication path by fixing onto the selection section, and an opposite surface capable of interrupting the communication path by placing onto the selection section.

11. 1. An apparatus for transmitting a communication signal, comprising: A folded portion is provided at an end of the substantially rectangular curing sheet, and a communication line is disposed at the folded portion as a transmission medium for a communication signal; a modulator adapted to contact the communication line; The modulator is a transmission device that converts the communication signal in the protective sheet into a communication signal of another standard, and vice versa.

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