CN100594696C - Functional unit for dual wiring systems - Google Patents

Abstract

A dual wiring system with easy exchangeability of a function unit is provided. A gate device is mounted in a wall surface of a structure, and connected to both of an electric power line and an information line previously installed in the structure. The function unit has at least one of functions for supplying electric power from the electric power line, outputting information from the informationline and inputting information into the information line when connected with the gate device. The function unit has a module connector comprised of an electric power connector and an information signal connector, which is detachably connected to a module port of the gate device comprised of an electric power port and an information signal port. To further improve function expandability, an additional function unit can be detachably connected to the function unit.

Description

Functional unit for dual wiring systems

technical field

The present invention relates to a dual wiring system that can be used to supply power and input and output information through power lines and signal lines installed in a structure.

Background technique

Due to the spread of the Internet, it is required to ensure that information networks can be accessed at many locations in building structures such as general residences and office buildings. For example, Japanese Patent Laid-Open No. 11-187154 discloses a multimedia wiring system including: a power distribution board for controlling power lines and various signal lines installed in a structure in a centralized control manner; and a multimedia outlet board , installed in the indoor wall surface, and connected to the distribution board through power lines and signal lines. For example, the multimedia outlet board includes power outlets for supplying commercial power to electrical appliances, outlets for receiving broadcast programs such as terrestrial broadcasting, satellite broadcasting, and cable TV, and modular jacks for analog and digital lines, The analog and digital lines are used for Internet and telephone communications. By using the multimedia wiring system, the convenience of multimedia products is enhanced, thereby obtaining a comfortable living and working environment in the information society.

However, the above-mentioned multimedia socket board is usually installed in the wall surface and connected to the power line and the signal line under the construction work of the building structure. This means that the function of the multimedia socket board is determined during the construction of the construction project. Therefore, it is difficult to add new functions to the multimedia socket board or replace some functions of the existing multimedia socket board with other functions after the construction of the construction project is completed. In addition, maintenance work is required when exchanging an existing multimedia socket board for another multimedia board. However, it is not easy for ordinary users to perform such repair work, and the cost of the repair work becomes a burden on the user.

Therefore, from the viewpoint of easy interchangeability and functional expansion, the traditional multimedia socket board still has a lot of room for improvement.

Contents of the invention

Therefore, the primary consideration of the present invention is to provide a functional unit with improved functional expandability and easy interchangeability in a dual wiring system.

That is, the functional unit for a dual wiring system of the present invention is detachably connected to a door device installed on a wall surface of a structure and connected to both power lines and information lines installed in said structure . The functional unit is configured to provide at least one of a function of supplying electric power from the power line, a function of outputting information from the information line, and a function of inputting information to the information line when connected to the gate device. . The functional unit is characterized by having one of a module connector and a module port for when connected to a module formed at the door unit, the module connector and the module port. When the other one of the ports is used, the power supply from the door device to the functional unit and the signal transmission between the door device and the functional unit are realized simultaneously.

According to the present invention, since both the power supply from the door device to the functional unit and the two-way communication of information signals between the door device and the functional unit can be simultaneously obtained through the connection between the module connector and the module port, ordinary users can A functional unit already connected to the door unit can be easily exchanged for another functional unit without laborious repair work. In addition, when a plurality of door devices are installed in wall surfaces at many locations in a structure, each door device can be installed in a plurality of functional units having various functions such as sockets, switches, sensors, controllers, monitors, and speakers. shared between. Accordingly, increased freedom in the layout of functional units provides a comfortable and convenient living and working environment to satisfy users' needs.

In the present invention, preferably, the functional unit has at least one of a power supply unit and a transceiver unit, and the power supply unit is used to use electromagnetic coupling to provide The electric power is supplied to the electric appliance, the transceiver unit is used to convert the information signal provided through the connection between the module connector and the module port into an optical signal, and output the optical signal, and for An optical signal supplied from the outside is converted into an information signal, and the information signal is transmitted to the information line through the gate device. In this case, since power transmission and/or signal transmission are performed in a non-contact manner using electromagnetic and optical coupling, it is possible to minimize transmission loss of power and/or electric signals and allow functional units to operate reliably.

In addition, preferably, the functional unit has one of a power port and a power connector and one of an information signal port and an information signal connector, and one of the power port and the power connector is detachably connected to The other of the power port and the power connector formed at the additional functional unit to supply the electric power from the functional unit to the additional functional unit, the information signal port and the information signal connector One of the information signal ports and the information signal connector formed at the additional functional unit is detachably connected to the other one for signal transmission between the functional unit and the additional functional unit. send. Especially preferably, the power port and the power connector are used to supply the power from the functional unit to the additional functional unit by electromagnetic coupling, and the information signal port and the information signal connector are used to use optical coupled for signal transfer between the functional unit and the additional functional unit. The availability of additional functional units further enhances the functional scalability in dual cabling systems.

Furthermore, preferably, the functional unit has connection means for mechanically connecting the additional functional unit to the functional unit. For example, the connecting means is formed to have: an engaging portion such as an elongated protrusion and a groove formed on the functional unit; and a link slidably contacting the engaging portion. A part of the connecting member may be engaged to the engaging portion of the functional unit, and a remaining portion of the connecting member may be engaged to an engaging portion formed on the additional functional unit, thereby realizing the functional unit and the additional functional unit. Mechanical connection between functional units. In this case, it is possible to improve reliability of power supply and two-way communication of information signals between the functional unit and the additional functional unit, and prevent the additional functional unit from accidentally falling from the functional unit.

These and other features of the present invention and the advantages resulting therefrom will become more apparent from the following preferred embodiments, with reference to the accompanying drawings.

Description of drawings

1 is a schematic diagram of a dual wiring system according to a preferred embodiment of the present invention;

Fig. 2 is a schematic circuit diagram of a gate device and a functional unit for a dual wiring system;

3A is an exploded perspective view of a functional unit, and FIG. 3B is a plan view of a module port of a door device;

Figure 4 is a perspective view (observed from behind) of a functional unit;

Fig. 5 is a schematic circuit diagram of another functional unit;

6 is a schematic circuit diagram showing an internal structure of an additional functional unit for a dual wiring system;

7A and 7B are front and rear perspective views of an additional functional unit connected to the functional unit;

Figure 8 is a perspective view of an additional functional unit connected to the functional unit;

Figure 9 is a plan view of an attachment plate for securing the door assembly to the switch box;

Fig. 10A is an exploded perspective view showing how to connect an additional functional unit to a functional unit, and Fig. 10B is a perspective view of a connector;

11A and 11B are front and side views of an additional functional unit according to a first modification of the embodiment, and FIG. 11C is a perspective view showing how to use a connector;

12A and 12B are front views of other additional functional units;

13A and 13B are perspective views showing how to perform connection between additional functional units according to a second modification of the embodiment; and

14A to 14C are front and side views of an additional function unit according to a third modification of the embodiment.

Detailed ways

The functional unit for a dual wiring system of the present invention is described in detail according to the following preferred embodiments.

As shown in Figure 1, the dual wiring system of this embodiment includes: power supply line L1 and information line L2, installed in the building structure, and connected to commercial power supply AC and Internet network NT through distribution board 1; switch box 2, embedded In the wall surface at many places in the building structure; the door device 3, installed in the switch box, and connected to the power supply line L1 and the information line L2; and a plurality of functional units 4, when connected with one of the door devices 3 Each has the ability to provide at least one of the function of supplying power from the power supply line L1, the function of outputting information from the information line L2, and the function of inputting information into the information line L2. In this specification, walls are not limited to side walls formed between adjacent rooms. That is, the walls include exterior walls and interior walls of the building structure, and the interior walls include side walls, ceilings, and floors. In FIG. 1, "MB" denotes a trunk breaker, "BB" denotes a branch breaker, and "GW" denotes a gateway (for example, a router or a built-in hub).

As shown in FIG. 2, each gate device 3 has terminals (30a, 32a) and bus wiring terminals (30b, 32b) connected to the power supply line L1 and the information line L2 at its rear surface, and at its front surface There is a module port 34 including a power port 34a for supplying electric power and an information signal port 34b for accessing the information line. For example, as shown in FIG. 3B , each of the power port 34 a and the information signal port 34 b is formed in a substantially rectangular shape so that they are arranged parallel to each other. As described later, the module port 34 is detachably connected to the module connector 42 of the functional unit 4 . The module port 34 may be formed at the side of the door apparatus 3 so that the functional unit 4 is detachably connected to the door apparatus 3 in a direction along (substantially parallel to) the wall surface.

Regarding the door device 3, the distance between the power port 34a and the information signal port 34b, the terminal arrangement of each of the power port 34a and the information signal port 34b, and the shape of the module port 34 are standardized (normalized) so that The individual door devices 3 are shareable between the functional units 4 . In other words, since the module ports 34 of the door apparatus 3 are formed identical to each other, the functional unit 4 having the module connector 42 connectable to the module port 34 can be commonly used for all the door apparatus 3 in the double wiring system. Therefore, a functional unit 4 connected to one door device 3 can be interchanged with another functional unit 4 by a simple connection and disconnection operation between the module port 34 and the module connector 42 without maintenance work. Therefore, the dual wiring system of the present invention is superior in the easy interchangeability of the functional units 4 .

The functional unit 4 of the present embodiment has circuit components as shown in FIG. 2, and has a module connector 42 in its rear surface as shown in FIG. 3A. The module connector 42 includes a power connector 42a and an information signal connector 42b. For example, as shown in FIG. 4, each of the power connector 42a and the information signal connector 42b is formed in a substantially rectangular shape so that they are arranged in parallel to each other. By connecting the module connector 42 of the functional unit 4 to the module port 34 of the door device 3, the power connector 42a and the information signal connector 42b can be simultaneously connected to the power port 34a and the information signal port 34b.

In the present embodiment, the module port 34 also has a guide portion 35 such as an annular wall or an annular groove extending around the power port 34a and the information signal port 34b. The guide portion 35 is formed to be engageable to an engaging portion 45 such as an annular wall of the module connector 42 formed on the rear surface of the functional unit 4 . Since the power connector 42a and the information signal connector 42b are simultaneously connected to the power port 34a and the information signal port 34b by simply engaging the engaging portion 45 to the guide portion, replaceability of the functional unit 4 can be improved. Module port 34 and module connector 42 may be formed from female and male connectors.

Depending on the kind of functional unit 4, the power supplied to the functional unit 4 through the gate device 3 and the two-way communication of information signals between the functional unit 4 and the information line L2 are used for different purposes. For example, when the functional unit 4 is connected to the door device 3 installed in the wall surface at a higher position near the ceiling, it preferably has a socket function for receiving a hooked plug of a lighting device, such as a motion sensor, a temperature sensor, and a monitor. A security function for a camera, or a sound function such as a speaker. In addition, when the functional unit 4 is connected to the door device 3 installed in the wall surface at an intermediate height where the user can easily operate the functional unit 4, it preferably has a switch function for turning on/off the lighting equipment, for such as an air conditioner The control function of electrical appliances or the display function such as liquid crystal display. In addition, when the functional unit 4 is connected to the door unit 3 installed in the wall surface at a lower position near the floor, it preferably has an outlet function for receiving a plug of an electric appliance such as an electric vacuum cleaner, a sound function such as a speaker, or Foot light function.

Next, the internal structure of the functional unit 4 of this embodiment will be described. As shown in FIG. 2 , the functional unit 4 is provided with an AC/AC converter 60 , a DC power supply section 61 , a transceiver section 62 , an E/O converter 63 , an O/E converter 65 , and a functional section 67 . The AC/AC converter 60 converts the commercial AC voltage into a lower AC voltage with an increased frequency and applies the lower AC voltage to the coil 72 wound around the core 70 . The DC power supply section 61 generates operating voltages for internal circuit components from a stable DC voltage obtained by rectifying and smoothing this lower AC voltage. The transceiver section 62 transmits and receives information signals to enable bidirectional communication through the information line L2. The E/O converter 63 converts the information signal received from the information line L2 into an optical signal, and outputs the optical signal through a light emitting device (LED) 64 . On the other hand, the O/E converter 65 receives an optical signal provided from the outside, for example, the additional function unit 5 described later, through a light receiving device (PD) 66, and converts the received optical signal into an information signal, to send it to the transceiver unit 62. The function section 67 provides the above-mentioned functions of the function unit 4 . In the case of FIG. 2 , the functional portion 67 is formed of a power socket.

In the case where the functional unit 4 has other functional sections 67 such as sensors or controllers, as shown in FIG. 5 , a processing section 68 and an I/O interface 69 are formed between the transceiver section 62 and the functional section 67 . The processing part 68 has the following functions: signal processing is performed on the information signal received by the transceiver part 62, so that the processed signal is transmitted to the function part 67 through the I/O interface 69; and receiving the data signal provided from the function part 67, to be output as an information signal. Electric power necessary to drive the transmission and reception unit 62 , the processing unit 68 and the function unit 67 is supplied from the DC power supply unit 61 . When an AC/DC converter for converting a commercial AC voltage into a required DC voltage is used instead of the AC/AC converter 60 , the DC power supply section 61 may be omitted.

When the function section 67 is formed of a switch, operation data obtained by operating the switch is transmitted to the processing section 68 through the I/O interface 69 . Then, the processed data is transmitted to, for example, an infrared remote controller (not shown) through the transceiver unit 62, so as to turn on/off the electric appliance to be controlled by receiving a remote control signal transmitted from the infrared remote controller. In addition, when the functional part 67 is formed by a sensor, the data detected by the sensor is transmitted as an information signal to the information line L2, and then notified to the user through a necessary communicator. When the functional section 67 is formed of a speaker, sound data provided as an information signal through the information line L2 is output from the speaker. When the functional part 67 is formed by a surveillance camera, image data captured by the surveillance camera is compressed and encoded, and then output as an information signal. Also, when the functional section 67 is formed of a monitor, the image data supplied through the information line L2 is decoded and then displayed on the monitor. When the function section 67 is simply formed of a power outlet, as described above, the processing section 68 and the I/O interface 69 may be omitted. Therefore, since the functional unit 4 having various functional parts 67 can be used in a double wiring system in a detachable manner, the degree of freedom in the layout of the functional unit 4 can be significantly improved.

The coil 72 wound around the core 70 in the functional unit 4 serves as power supply means for supplying electric power from the functional unit 4 to the additional functional unit 5 in a contactless manner. That is, the coil 72 wound around the core 70 of the functional unit provides an electromagnetic coupling portion serving as the primary side of the transformer. On the other hand, as shown in FIG. 6 , the additional functional unit 5 has an electromagnetic coupling section which is composed of a coil 82 wound around a core 80 and functions as a secondary side of a transformer. Therefore, by forming an electromagnetic coupling between the functional unit 4 and the additional functional unit 5 , a low AC voltage is induced in the coil 82 of the additional functional unit 5 to realize power supply from the functional unit 4 to the additional functional unit 5 . In this embodiment, since a low AC voltage having a frequency higher than that of the commercial AC voltage is obtained by the AC/AC converter 60, the electromagnetic coupling portion serving as a transformer can be downsized.

In addition, the light emitting device (LED) 64 of the E/O converter 63 of the functional unit 4 is used to transmit a light signal as an information signal to the additional functional unit 5 in a contactless manner. In this case, as shown in FIG. 6, a light-receiving device (PD) 86 is set in the additional functional unit 5, so that when the additional functional unit 5 is connected to the functional unit 4, the light emitting device 64 of the functional unit 4 and the additional functional unit The light receiving devices 86 of the unit 5 are in a face-to-face relationship. Similarly, in order to transmit light signals as information signals from the additional functional unit 5 to the functional unit 4, the additional functional unit 5 has a light emitting device (LED) 84 arranged so that when the additional functional unit 5 is connected to the functional unit 4, it is in a face-to-face relationship with the light receiving element (PD) 66 of the functional unit 4 . Therefore, each of the functional unit 4 and the additional functional unit 5 has a pair of E/O converters (63, 83) and O/E converters (65, 85) as optical coupling sections so that between them Two-way communication of information signals is possible.

As shown in FIGS. 3A and 4 , it is preferable to arrange an electromagnetic coupling portion X for power supply and an optical coupling portion Y for bidirectional communication of information signals on the side surface of the functional unit 4 in a manner spaced apart from each other by a required distance. place. In addition, as shown in FIG. 6 , a pair of electromagnetic coupling portion X and optical coupling portion Y is formed at each of both sides of the additional function unit 5 . That is, the light coupling portion Y1 formed at one side (for example, the left side) of the additional functional unit 5 includes the light receiving device 86 on the upper side and the light emitting device 84 on the lower side, and on the opposite side of the additional functional unit 5 The light coupling portion Y2 formed at (for example, the right side) includes the light emitting device 94 on the upper side and the light receiving device 96 on the lower side. In this case, even when a plurality of additional functional units 5 are connected to the functional unit 4 in series, bidirectional communication of information signals between the additional functional units 5 and between the functional unit 4 and the additional functional unit 5 can be ensured. A light-transmitting cover is also preferably attached to each light coupling portion (Y, Y1, Y2) to protect the optics. As shown in FIG. 6 , the additional functional units 5 also have circuit components for realizing power supply and bidirectional communication of information signals between adjacent additional functional units 5 . However, since they are substantially the same as the circuit components used in the functional unit 4, repeated descriptions of the same circuit components are omitted.

As shown in FIG. 3A, when a functional portion 67 (for example, a power socket) is formed at the front surface of the functional unit 4 (that is, the opposite surface with the rear surface of the module connector 42), and at the side surface of the functional unit 4 When forming a pair of the electromagnetic coupling part X and the optical coupling part Y, the additional functional unit 5 can be connected to the functional unit 4 along the wall surface (ie, parallel to the wall surface). Therefore, it is possible to improve the functional expandability in the dual wiring system without spoiling the aesthetics of the interior space. In addition, the door device 3 may be fixed to the switch box 2 such that a part of the door device 3 protrudes from the wall surface. In this case, it is preferable to form the module port 34 at the side of the protruding portion of the door device 3 so that the functional unit 4 and the additional functional unit 5 can be arranged along the wall surface.

Examples of additional functional units connected to functional units are described below. In FIGS. 7A and 7B , the functional unit 4 has as functional part 67 a special socket for a hooked plug of a lighting device. The additional functional unit connected to the functional unit has the function of emitting an infrared remote signal. In this case, the operation data obtained when the user operates other functional units having a controller as a functional part is transmitted to the additional functional unit 5 of FIG. The receiving part emits an infrared remote signal. In FIG. 7A , reference numeral 58 denotes a protective cover detachably attached to the side of the additional function unit 5 to protect the electromagnetic coupling portion X and the optical coupling portion Y when not in use. In addition, when the functional unit 4 has a power socket, a relay or a semiconductor switch may be connected to the circuit of the power socket so that when the relay or semiconductor switch is operated according to a control signal transmitted from other functional units, the function of the power socket can be canceled.

In FIG. 8 , first to third additional functional units ( 5A, 5B, 5C ) are connected to the functional unit 4 . In this case, the functional unit 4 has a universal power outlet as the functional portion 67 . The first additional function unit 5A, which is detachably connected to the function unit 4, has a switch for turning on/off the air conditioner as a function part. The second additional function unit 5B, which is detachably connected to the first additional function unit 5A, has a controller of the air conditioner as a functional part. In addition, the third additional function unit 5C, which is detachably connected to the second additional function unit 5B, has a main unit of an internal communication system as a function section.

The first additional unit 5A is provided with: a run button B1; a stop button B2; and a CPU section for creating data according to the operations of these buttons, and transmitting the created data to the processing section through the I/O interface. The additional functional unit is preferably used for operating the lighting device. The second additional functional unit 5B is provided with: a temperature setting dial 51 for the air conditioner; an LCD (liquid crystal display) monitor 52 for displaying the setting temperature; a timer switch 53 for making the air conditioner run for a desired period of time; And a CPU section for making operation data according to the operation of the temperature setting dial 51 and the operation of the timer switch 53, transmitting the operation data to the processing section through the I/O interface, and making a display to be displayed on the LCD monitor 52. data.

The third additional function unit 5C is provided with: a volume control button B3; a speaker 54; a mode switch 55 for switching between the transmitter function and the receiver function of the speaker 54; The image taken by the TV camera at the entrance; the release button B4 for unlocking the door; and the CPU section with the sound processing function for the speaker 54, the image processing function for the LCD screen 56, and the release button B4 and the mode according to the The function of creating operation data by operating the switch 55 and transmitting the created operation data to the processing unit through the I/O interface. The functional parts of the additional functional unit 5 are not limited to the above examples. For example, battery chargers for electric shavers, electric toothbrushes, mobile phones, and portable audio players can be formed as functional parts. In addition, an additional functional unit 5 having a handset function of the intercom system may be connected to the functional unit 4 installed in the outer wall surface at the entrance.

In the above description, the door device 3 is fixed directly to the switch box 2 . If desired, the door device 3 can be fixed to the switch box 2 by means of an attachment plate 75, for example as shown in FIG. 9 . In this case, the attachment plate 75 with the door device 3 is fixed to the switch box 2 by using mounting screws after hooks formed at both sides of the attachment plate 75 are engaged to the door device 3 . Alternatively, the door device 3 can be fixed directly in the wall surface by using a dedicated clip without using the switch box 2 . On the other hand, it is possible to connect the module connector 42 to the module port 34 of the door device 3 in the switch box 2, then, by using mounting screws to fix the housing 10 of the functional unit 4 to the switch box 2, and finally, the socket A cover 11 and a decorative cover 12 are mounted to the front surface of the housing 10 to attach the functional unit 4 to a wall surface. Therefore, ordinary users can easily perform the interchange operation of the functional units 4 without performing maintenance work.

As shown in FIG. 10A , an additional functional unit 5 may be attached to the functional unit 4 . That is, first, the decorative cover 12 is removed from the functional unit 4 . In the present embodiment, since the socket cover 11 is formed separately from the decorative cover 12, the socket cover 11 can protect the functional part 67 such as the power socket during the connection and disconnection operation of the additional functional unit 5 to avoid accidental breakage. . After arranging the additional functional unit 5 on the side surface of the functional unit 4 such that the electromagnetic coupling portion X and the optical coupling portion Y of the additional functional unit 5 are in a face-to-face relationship with the electromagnetic coupling portion X and optical coupling portion Y of the functional unit 4, by The additional functional unit 5 is mechanically coupled to the functional unit 4 using a connecting piece 90 . The housing (10, 20) of each of the functional unit 4 and the additional functional unit 5 has horizontal guide rails (14, 24) at its upper and lower ends. Reference numeral 15 denotes a stopper wall formed at a substantially central position in the longitudinal direction of the guide rail 14 . On the other hand, as shown in FIG. 10B , the connector 90 has a slot 92 into which the guide rail ( 14 , 24 ) can fit.

As shown in FIG. 10A , with the guide rail 14 fitted in the groove 92 , the link 90 is slid until the link 90 contacts the stopper wall 15 . As a result, the connection piece 90 is joined to the functional unit 4 with about half the length of the connection piece. On the other hand, the connecting piece 90 is also joined to the additional functional unit 5 with the remaining length of the connecting piece in a similar manner as above. Therefore, after the joints between the connecting piece 90 and the functional unit 4 and between the connecting piece 90 and the additional functional unit 5 are completed at both the upper and lower ends, the decorative cover (12, 22) is attached to the functional unit and the additional functional unit. the front surface of the unit. Since the connecting piece 90 is held between the decorative cover (12, 22) and the housing (10, 20) of the functional unit 4 and the additional functional unit 5, accidental drop of the connecting piece 90 can be prevented, and a secure connection between them can be obtained. Stabilize mechanical connections without ruining their aesthetics.

The following are variants of the means for obtaining a stable mechanical connection between the functional unit 4 and the additional functional unit 5 or between the additional functional units 5 .

As shown in FIGS. 11A to 11C , the additional functional unit 5 according to the first modification of the present embodiment has a pair of male and female connectors ( 25 , 27 ) on both sides thereof, of which Each includes an electromagnetic coupling portion X and an optical coupling portion Y. For example, a male connector 25 is detachably connected to a female connector formed at the functional unit 4 , and a female connector 27 is detachably connected to a male connector formed at another additional functional unit 5 . In addition, this additional functional unit 5 has a horizontal groove 26 in which a connecting piece 90A having a cross-section similar to the groove 26 can fit. As in the case of the connecting piece 90 of FIG. 10B , one end of the connecting piece 90A is inserted into the groove 26 of the additional functional unit 5 with about half the length of the connecting piece, and likewise, the other end of the connecting piece 90A is inserted into the groove 26 of the remaining half length of the connecting piece. Inserted into a groove formed at an adjacent functional unit 4 or another additional functional unit 5 to provide a stable mechanical connection between them.

In this modified example, since the groove 26 has a substantially trapezoidal cross-section configured such that the opening formed at the rear surface of the additional functional unit 5 corresponds to the narrow side of the trapezoidal cross-section, it is possible to prevent the connecting member 90A from being removed from the trapezoidal cross-section. The slot 26 falls away without the use of a decorative cover. In addition, the user can touch the connecting piece 90A through the opening of the rear surface of the additional function unit 5, and the sliding of the connecting piece 90A in the groove 26 can be easily performed. The shape of the groove is not limited to the trapezoidal section as long as the connection piece 90A cannot be removed from the opening formed at the rear surface of the additional functional unit 5 .

As shown in FIG. 12A, only the electromagnetic coupling portion X may be formed of female and male connectors. In order to ensure the function expandability of the additional functional unit 5, when a male connector is provided on one side of the additional functional unit, a female connector is provided on the other side of the additional functional unit. Alternatively, as shown in FIG. 12B , each of the electromagnetic coupling portion X and the optical coupling portion Y is formed of female and male connectors formed with arched recesses and protrusions. Accordingly, reliability of power supply and input and output of information signals is improved, while the use of female and male connectors provides accurate placement between adjacent additional functional units.

As a second modified example of the present embodiment, as shown in FIG. 13A, preferably, each of the upper and lower ends of the additional functional unit 5 has a tapered end 21 with an engaging groove 23, and the connecting piece 90B is constituted To slidably contact the tapered end 21 , and has a hook 93 at one end thereof which can be fitted in the engagement groove 23 . In this case, after fitting the connecting piece 90B to the tapered end 21 at each of the upper and lower ends of the additional functional unit, as shown by the arrow in FIG. 13A , slide the connecting piece 90B toward the adjacent additional functional unit. As a result, as shown in FIG. 13B , by using this connecting member 90B, a stable mechanical connection between adjacent additional functional units 5 can be obtained.

As a third modified example of the present embodiment, as shown in FIGS. 14A to 14C, preferably, there is a recess 28 for accommodating the connecting piece 90C at each of the upper and lower ends of the additional functional unit 5, and between it and the additional The cover 16 is pivotally supported at one end of the housing 20 of the functional unit 5 . The connecting piece 90C has a groove 92C into which a guide rail 24C formed in the recess 28 can be slidably fitted. In this case, after opening the cover 16 to contact the connecting piece 90C, the connecting piece is slid along the guide rail 24C as in the case of FIG. 10A . Finally, the cover is closed in order to obtain a stable mechanical connection between adjacent additional functional units 5 . In addition, since the connector 90C is always accommodated in the recess 28, there is no need to worry about the connector being lost.

As an information signal transmission method usable in the dual wiring system of the present invention, one of baseband transmission and broadband transmission can be used. In addition, the agreement is not limited to a specific agreement. For example, audio and visual information signals can be transmitted and received according to JT-H232 packets for two-way communication between the base unit and the handset of the intercom system. In the control system, it is also preferable to use a multicast or unicast routing protocol that can be controlled at a control ratio of 1:1 or 1:N according to operation data. Alternatively, preferably, the protocol used between the gate devices is different from the protocol used in the functional units connected to the gate devices, and the protocol conversion is performed at the gate devices.

As shown in FIG. 1, since the functional unit 4 having various functions has a common module connector 42 that can be detachably connected to each door device 3, and can be connected through the connection between the module port 34 and the module connector 42 To simultaneously obtain both the power supply from the door device 3 to the functional unit 4 and the two-way communication of the information signal between the door device 3 and the functional unit 4, so ordinary users can easily connect the functional unit 4 that has been connected to one door device 3 Interchange with another functional unit without laborious repair work. In addition, when at least one additional functional unit 5 is connected to the functional unit 4 along the wall surface, the functional expandability can be further improved without spoiling the beauty of the interior space. Therefore, the functional unit for a dual wiring system of the present invention can provide a comfortable and convenient living and working environment to meet the needs of users in the information society.

Claims (7)

1. A functional unit for a dual wiring system, said functional unit being detachably connected to a door device mounted on a wall surface of a structure and connected to power lines and information line both, Wherein, the function unit is configured to provide a function of supplying electric power from the power line, a function of outputting information from the information line, and a function of inputting information to the information line when connected to the gate device at least one of, and The functional unit has one of a module connector and a module port for when connected to one of the module connector and the module port formed at the door unit. In another case, the power supply from the door device to the functional unit and the signal transmission between the door device and the functional unit are realized simultaneously. 2. The functional unit according to claim 1, further comprising one of a power port and a power connector and one of an information signal port and an information signal connector, the power port and the power connector one is detachably connected to the other of the power port and the power connector formed at the additional functional unit to supply the electric power from the functional unit to the additional functional unit, the information One of the signal port and the information signal connector is detachably connected to the other one of the information signal port and the information signal connector formed at the additional functional unit, so as to be connected between the functional unit and the information signal connector. Signal transmission between the above additional functional units. 3. The functional unit of claim 2, wherein the power port and the power connector are used to supply the power from the functional unit to the additional functional unit using electromagnetic coupling, the information A signal port and the information signal connector are used for signal transmission between the functional unit and the additional functional unit using optical coupling. 4. The functional unit according to claim 1, further comprising a transceiver unit for converting an information signal provided through the connection between the module connector and the module port into an optical signal, and The light signal is transmitted to an electric appliance, and is used to convert the light signal supplied from the outside into an information signal, and transmit the information signal to the information line through the gate device. 5. The functional unit according to claim 1, further comprising a power supply unit for supplying the power provided through the connection between the module connector and the module port by using electromagnetic coupling Give electrical appliances. 6. The functional unit according to claim 2, further comprising connecting means for mechanically connecting the additional functional unit to the functional unit. 7. The functional unit according to claim 6, wherein the connecting means comprises: an engaging portion formed on the functional unit; and a connecting member slidably contacting the engaging portion. part, and when a part of the connecting part is engaged to the engaging part of the functional unit and the remaining part of the connecting part is engaged to the engaging part formed on the additional functional unit, the functional unit and The mechanical connection between the additional functional units.

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