JP2002305470A - Power line carrier communication system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a power line carrier communication system for easily specifying each terminal apparatus, even if plural terminal apparatuses are connected to a power line, and at the same time, preventing misoperations and wrong settings. SOLUTION: An LED section 2 is provided at a terminal apparatus A, a setting apparatus B acquires the identification information in the plural terminal apparatuses A, that are connected to the power line by power line carrier communication, and when the setting apparatus B transmits a confirmation signal to the terminal apparatus A, which corresponds to the identification information, the terminal apparatus A that has received it performs reporting by the LED section 2, in the power line carrier communication system.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a power line communication system.

[0002]

2. Description of the Related Art Conventionally, a power line carrier terminal device for a load device such as a plurality of lighting devices and air conditioners, which are distributed and installed in a building such as a house, connected to a power line such as a commercial power supply, and controlled through the power line. (Hereinafter referred to as terminal device), or
There is a power line carrier communication system including a power line carrier operation terminal (hereinafter, operation terminal) such as a power line carrier terminal operation device on the operation side. In order to operate these terminal devices, it is necessary to set attribute information such as names, installation locations, and interlocking operations. In this case, a setting operation of writing attribute information to a memory, which is a storage unit provided in the terminal device, is performed by power line carrier communication via a power line from a power line carrier setting device (hereinafter, setting device) connected to the power line. Each terminal device has, for each product, identification information such as its type, for example, a model number of a lighting fixture or a wall switch, and the setting device obtains a list of identification information of the terminal devices connected to the power line, In some cases, a desired terminal device is selected from the identification information displayed in a list, and attribute information is set.

However, in the above-described technology, when a plurality of terminal devices of the same model and the same model number are connected, it is difficult to identify each terminal device. That is, when the terminal device is a load device in the field of home electric appliances such as a refrigerator and a television, the terminal device may be connected to a commercial power supply one by one and attribute information may be set. In the case of a wiring device type terminal device such as a plug-in connection type load terminal having a load device outlet, it cannot be easily connected to a commercial power supply. Therefore, instead of performing the work of setting the attribute information before installing such a terminal device, the work of setting the attribute information is performed collectively after installing the terminal device.

In the case of a wiring device type terminal device,
Generally, the same model and the same model number are installed. That is, in a lighting system composed of a plurality of operation switch terminals installed on a wall surface and a lighting device, or a sealing adapter terminal which is a plug-in type load terminal, which lighting device or difference Assuming a pattern operation that is an interlocking operation of whether to operate a connection-type load terminal, first, by using a setting device, power line carrier communication via a power line to identify the identification information of the terminal device connected to the power line. Acquire and display in a list. Next, a desired operation switch terminal is specified and attribute information such as an interlocking operation is set. However, since there are multiple operation switch terminals and plug-in connection type load terminals of the same model, which operation switch terminal is installed where, or which plug-in connection type load terminal is operated It is difficult to physically specify what to do.

[0005] As a workaround, for example, unique identification information is assigned to each operation switch terminal and plug-in connection type load terminal at the time of shipment from a factory, and the installation position is managed at the time of construction. A solution is possible. However, it is troublesome to actually manage the installation positions of the terminal devices in a cluttered construction site. It is also conceivable to display the identification information unique to each operation switch terminal using a display means such as a bar code, and read out the identification information with a reading device. However, in the case of wiring equipment type plug-in type load terminals that require relatively small size, it is difficult to display the above on the product surface in terms of product design, and if it is provided on the product side, or on the back, However, after the terminal device is installed, the terminal device is hidden in the wall. As another method, a reset switch is provided in the terminal device, and when the reset switch is pressed, a notification message indicating that the operation has been performed is transmitted to the power line so that the setting device side can determine. There is also a way to do it. However, it is preferable to provide a reset switch on the product surface in a wiring device type terminal device, etc., because it is difficult to design the product, and there is a high risk that the reset switch will be pressed by mistake after setting is completed. is not. If it is provided on the side surface or the back surface of the product, it will be hidden in the wall after installation, as described above, which will hinder the setting operation.

[0006]

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a method for controlling individual terminals even when a plurality of terminal devices are connected to a power line. An object of the present invention is to provide a power line carrier communication system capable of easily identifying a device and setting at least attribute information such as interlocking information without causing confusion with neighboring dwelling units.

[0007]

To achieve the above object, a power line carrier communication system according to the present invention has the following arrangement. That is, in the invention of claim 1, the identification information of the power line carrier terminal device, which is the controlled device, and the power line carrier terminal device are acquired by the power line carrier communication and displayed in a list, and the power line carrier terminal device is displayed. A power line carrier setting device for setting at least attribute information such as interlock information, and a power line carrier communication system in which the power line carrier terminal device is provided with a notification unit, and wherein the power line carrier setting device is A display unit that can display a list of the power line carrier terminal devices from the identification information of the power line carrier terminal devices, and any power line carrier terminal device from the power line carrier terminal devices listed on the display unit. And transmits a confirmation signal, and the power line carrier terminal device that has received the confirmation signal has received the confirmation signal by the notification unit. When notifying the door, the power line carrier for setting device, a power line carrier communication system and transmits the attribute information to the power line carrier terminal device.

[0008] The invention according to claim 2 is characterized in that the notifying means is a light emitting section composed of a light emitting element.

According to a third aspect of the present invention, the notifying unit is a sounding unit including a sounding element.

According to the fourth aspect of the present invention, the power line carrier terminal device comprises an operation input unit comprising an operation switch or
An external input unit that receives an input from an external device, and the operation input unit or a storage unit that stores a predetermined input pattern that is input to the external input unit; In the non-reception mode in which the attribute information cannot be received, and when the input that matches the input pattern is input to the operation input unit or the external input unit, the attribute information is received from the non-reception mode. The terminal device for power line carrier receives the attribute information from the setting device for power line carrier after the mode shifts to the receivable mode in which the power line carrier can be received.

According to a fifth aspect of the present invention, the power line carrier terminal device, which is a controlled device, obtains the identification information of the power line carrier terminal device by power line carrier communication, displays the identification information, and displays the list. A power line carrier setting device that sets at least attribute information such as interlock information between devices, and a power line carrier communication system in which the power line carrier terminal device is connected to a power line, wherein the power line carrier terminal device includes an operation input unit including an operation switch or An external input unit that receives an input from an external device, the operation input unit, or a storage unit that stores a predetermined input pattern input to the external input unit, the power line carrier setting device, A power line carrier communication system comprising a display unit capable of displaying a list of power line carrier terminal devices from the identification information of the power line carrier terminal device, The power line carrier terminal device acquires the identification information of the power line carrier terminal device via a power line, displays the identification information in a list on the display unit, and an input that matches the predetermined input pattern is the operation input. Department or
When input to the external input unit, transmits to the power line carrier setting device a detection signal indicating that there is an input to the power line carrier terminal device, the power line carrier setting device by the detection signal, The attribute information is transmitted to a power line carrier terminal device.

In the invention according to claim 6, the power line carrier terminal device is in a non-reception mode in which the attribute information from the power line carrier setting device cannot be normally received, and when transmitting the detection signal, The present invention is characterized in that the mode shifts from a non-reception mode to a reception mode in which the attribute information can be received.

According to a seventh aspect of the present invention, the external input section is an infrared receiving section that receives infrared rays, and the input pattern is that the infrared receiving section receives infrared rays.

In the invention according to claim 8, the input pattern is such that the infrared receiving section continuously receives the infrared rays, and the power line carrier terminal device transmits the infrared rays only while the infrared rays are continuously input. In the receivable mode, when the infrared ray is no longer input, the mode shifts to the non-receivable mode again.

In the ninth aspect of the present invention, when the power line carrier terminal receives the attribute information from the power line carrier setting device in the receivable mode, the terminal shifts to the non-receivable mode again. Features.

In a tenth aspect of the present invention, the power line carrier terminal device shifts to the non-receivable mode again after a lapse of a predetermined time from the shift to the receivable mode.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) A first embodiment of a power line carrier communication system according to the present invention will be described with reference to the drawings. First, a power line carrier communication system will be described. As shown in FIG. 2, in the power line carrier communication system, a power line carrier terminal device (hereinafter, terminal device) A, which is a lighting device connection device and a wall switch, is connected to a power line, and a power line carrier setting device (hereinafter, setting device). The device B is connected to the power line via an outlet C connected to the power line. In each of the terminal devices A, identification information such as an ID such as a serial number, a maker name, a model type, and a model number is written in a nonvolatile memory before shipment from a factory.

As shown in FIG. 1, a terminal device A according to the present embodiment includes a coupling circuit 7 having a high-pass filter and an insulating transformer, and a commercial power supply and a CP through the coupling circuit 7.
A power line modem 5 for inputting / outputting data to / from the U, and an EEPROM capable of writing identification information such as the ID of the terminal device A
A power supply circuit 6 for obtaining power from a power line, a CPU 1 as an information processing unit for performing data processing of power line carrier communication, and an LED unit 3 as a light emitting unit including light emitting elements And is provided.

The setting device B uses power line carrier communication to
The identification information is read from the memory 2 of the terminal device A connected to the power line, and the identification information of the plurality of terminal devices A is displayed on the display unit B1.
By displaying as a list, it is possible to know what type of terminal device A is connected to the power line.
After that, when a desired terminal device obtained from the identification information of the plurality of terminal devices listed in the setting device B is selected and a confirmation signal is transmitted using power line communication, the terminal device corresponds to the selected identification information. The receiving terminal device A receives the confirmation signal and causes an LED (not shown) configuring the LED unit 3 as the light emitting unit to emit light. After the identification of the correspondence between the list-displayed identification information and the actual terminal device A is thus completed, the attribute information such as the interlocking information of the corresponding terminal device is written into the terminal device A. In the case of a wiring device such as a wall switch, the light emitting unit of the terminal device A is LE
The D section 3 is provided, but the O
Since many LEDs are originally provided with an N / OFF confirmation LED, if this LED is used as a terminal confirmation light emission unit and blinks, there is no need to add a new light emission unit. In the case of a lighting fixture, the lighting itself can be used as a light emitting unit.

The operation of the power line carrier communication system according to the present embodiment will be described. Setting device B as shown in FIG.
Acquires the identification information from the memories 2 provided in the plurality of terminal devices A connected to the power lines by the power line carrier communication, and displays the identification information in a list on the display unit B1 of the setting device B (step SA1). After displaying the list, the installation position of each terminal device A is confirmed, and in order to identify the correspondence between the identification information and the actual terminal device A, from the identification information displayed in the list,
A desired terminal device A is selected (step SA2), and a confirmation signal for confirming the installation position of the terminal device A is transmitted using power line carrier communication (step SA3). When the CPU 1 receives the confirmation signal via the coupling circuit 7 and the power line modem 5, the terminal device A causes the LED unit 3 to perform a certain number of times.
Alternatively, a control signal is transmitted so as to blink for a fixed time.
When the LED unit 3 emits light (step SA4), the correspondence between the terminal device displayed on the display unit B1 of the setting device B and the actual terminal device A is confirmed (step SA5). If a plurality of terminal devices A indicating the same identification information are displayed on the list display, and the selected terminal device is not the desired terminal device A, the process returns to step SA2 and repeats the same procedure. In this way, the process returns to step SA2 and repeats this procedure until the actual installation positions of all the terminal devices connected to the power line are confirmed (step SA6). When all the correspondence between the identification information of the terminal device displayed on the setting device B and the terminal device A actually installed can be confirmed, attribute information such as interlock information for operating the terminal device in an interlocked manner is created. To the terminal device A (step SA7). The above is the specific procedure of the correspondence between the identification information and the actual terminal device A in the present embodiment. In FIG. 3, the attribute information is transmitted collectively after confirming all terminal devices. However, the order of step SA7 and step SA6 is reversed, and the attribute information is transmitted to each terminal device A. You may make it transmit.

As shown in FIG. 4, instead of the LED section 3, a piezoelectric buzzer 4 composed of a piezoelectric element serving as a sounding section can be used as the notification means. The operation in this case is the same operation as the flowchart shown in FIG. 3, and the light emission of the LED unit in step SA4 is
The only difference is the sound of the sound. Piezoelectric buzzer 4
Thus, the position of the terminal device A can be confirmed even if the terminal device A to which the confirmation signal has been transmitted is not being watched. That is,
For example, an approximate installation position of the terminal device A can be specified by a beep sound. Further, when a plurality of terminal devices A are installed near each other, it is not possible to know which terminal device A is emitting the beep sound only from the beep sound. Therefore, if the terminal device A is provided with both the LED section 3 and the piezoelectric buzzer 4, the approximate installation position of the terminal device A can be specified by the beep sound, and further, the position of the terminal device A can be specified reliably by light emission. Compared to when there is no beep,
The installation position of the terminal device A can be confirmed more easily.

According to the present embodiment, it is possible to easily specify the correspondence between the identification information listed on the setting device and the terminal device actually installed.

(Second Embodiment) A power line carrier communication system according to a second embodiment of the present invention will be described below. As shown in FIG. 5, in the present embodiment,
The terminal device A includes an infrared receiving unit 11.
Since the infrared receiving section 11 simply detects the presence or absence of infrared reception, the infrared receiving section 11 can be constituted only by a phototransistor and a resistor.

In the present embodiment, the terminal device A
An infrared receiving unit 11 is provided as an input unit, and when an infrared ray is input to the infrared receiving unit 11, a detection signal indicating that the terminal device A has been input is transmitted to the setting device B. In the first embodiment, by selecting identification information from the list display of the setting device B, transmitting a confirmation signal to the corresponding terminal device, and notifying that the terminal device has received the confirmation signal, We checked the installation location of each device and identified the correspondence between the identification information and the actual terminal device,
In this embodiment, it comes to any terminal device A actually installed, and not from the setting device B,
When an infrared input is performed from the outside to the terminal device A by an infrared transmission device (not shown) or the like, and the input matches the input pattern, the terminal device A transmits a detection signal to the setting device B. Among the terminal devices listed on the display section B1 of the setting device B, the identification information corresponding to the terminal device A that has received the infrared ray and transmitted the detection signal is highlighted.

This operation will be described below with reference to FIG. First, when the process is started, an input standby state for detecting an infrared input is entered (step SB1). When an infrared ray is input (step SB2), it is determined whether or not the infrared input matches the input pattern (step SB2). Step S
B3). If the input does not match the input pattern, the process returns to step SB1 and waits for an infrared input again. If the input matches the input pattern, the terminal device A transmits a detection signal indicating that infrared light has been input (Step S).
B4) When the setting device B receives the detection signal, the setting device B highlights the identification information corresponding to the terminal device A that has transmitted the detection signal, and confirms it (step SB5). After that, the attribute information is transmitted to the terminal device A (step SB6).

As a device for outputting infrared rays, a dedicated remote controller may be provided, but a remote controller such as a television or an air conditioner, which can simply output infrared rays, can also be used. In this way, the identification information displayed in the list and the actual terminal device A can be specified, the attribute information such as the interlocking information of the terminal device A is transmitted to the terminal device A, and the terminal that has received the attribute information The device A performs an interlocking operation or the like according to the attribute information.

Further, instead of the infrared receiver 11 for transmitting the detection signal for recognizing the terminal device A as shown in FIG. 7, the operation switch 10 may be used to transmit the detection signal. . In this case, the terminal device A sends out a detection signal when the input to the operation switch 10 is an input that matches the input pattern stored in the memory 2 as the storage unit. In the present embodiment, it is assumed that the terminal device A of the power line communication system includes an operation switch 10 for performing ON / OFF, such as a wall switch terminal. The input pattern of the operation switch 10 is such that the terminal device A transmits a detection signal to the power line when ON / OFF of the operation switch 10 is repeated a predetermined number of times within a predetermined time interval.

The operation when the operation switch 10 is used is as follows in the flowchart of FIG. 6 described above.
When there is an input to the operation switch 10, the input is compared with the input pattern to determine a match.

According to the present embodiment, it is possible to easily specify the correspondence between the identification information listed on the setting device and the terminal device actually installed.

(Third Embodiment) A power line carrier communication system according to a third embodiment of the present invention will be described below. This embodiment has the same configuration as that of the above-described second embodiment, and a detailed description of each component is omitted.

In the present embodiment, the terminal device A is normally in the non-reception mode in which the setting information from the setting device B cannot be received, and an input matching the input pattern stored in the storage unit is transmitted to the terminal device A. The detection signal is transmitted by being input to the provided infrared receiving unit 11, and at the same time, the mode shifts to a receivable mode in which at least attribute information such as interlocking information can be received. In the present embodiment, the external input unit is the infrared receiving unit 11, and the input pattern is to input infrared light. That is, when infrared rays are input to the infrared receiving unit 11, the mode shifts from the non-receivable mode to the receivable mode in which the attribute information can be received. Return to impossible mode. This is because, when the power line carrier communication system is normally used, the terminal device A is set in the non-reception mode, so that attribute information is received from a neighboring dwelling unit connected to the same power line, thereby causing a malfunction. This is to prevent the terminal device A from causing the erroneous attribute information to be stored or being erroneously transmitted.

This operation will be described below with reference to FIG. When the terminal device A receives the infrared ray (step S
C1) It is determined whether the input is an input that matches the input pattern (step SC2). If it does not match the input pattern, it remains in the non-reception mode, and if it matches the input pattern, it transmits a detection signal (step SC3).
At the same time, the mode shifts to a receivable mode in which attribute information can be received (step SC4). The terminal device A shifts to the receivable mode, and waits in the receivable mode to receive the attribute information (step SC5). The terminal device A determines whether or not a predetermined time has elapsed since the shift to the receivable mode (step SC6). If the predetermined time has not elapsed, the process returns to step SC4 again and waits for transmission of the attribute information from the setting device. If the predetermined time has elapsed, the mode shifts to the non-reception mode (step SC7).

Also, in the present embodiment, the input pattern necessary for terminal device A to transmit a detection signal and shift from the non-receivable mode to the receivable mode is to input infrared rays. Alternatively, it may be that infrared rays are continuously input. In this case, it is assumed that the device that sends out infrared rays repeats ON / OFF of sending out infrared rays at intervals of 500 milliseconds or less. Furthermore, the reception mode is set only while infrared rays are continuously input, and the reception mode is set when infrared rays are not input continuously.

This operation will be described below with reference to FIG. An infrared input is detected (step SD1), and it is detected that the input has changed from the OFF state to the ON state (step SD2), and it is determined whether or not the elapsed time since the last detection of the infrared ray is less than 500 ms. (Step SD3). If it is not less than 500 ms, the counter variable is set to 1 (step SD4), and the process returns to step SD2. 5
If it is less than 00 ms, the counter variable is incremented (step SD5). Next, it is determined whether the counter variable is greater than 5 (step SC6). If the counter variable is less than 5, the process returns to step SD2. If the counter variable is larger than 5, a detection signal is transmitted (step SD7), and the counter variable is set to 0 (step SD7).
8).

As shown in FIG. 7, an operation switch 10 is provided in place of the infrared receiver 11 for transmitting a detection signal for recognizing the terminal device A, so that the detection signal is transmitted and the reception mode is set. The transition may be made. In this case, the terminal device A sends out a detection signal when the input to the operation switch 10 is an input that matches the input pattern stored in the memory 2 as the storage unit. In the present embodiment, it is assumed that the terminal device A of the power line communication system is a wall switch terminal and includes an operation switch 10 for performing ON / OFF. The input pattern of the operation switch 10 is such that the terminal device A transmits a detection signal to the power line when ON / OFF of the operation switch 10 is repeated a predetermined number of times within a predetermined time interval. As an operation when the operation switch 10 is used, in the flowchart of FIG. 8, an operation that is an infrared input is used as an operation switch input, and an operation that is an infrared input as an input pattern is performed.
What is necessary is just to change to the input of the operation switch, and the other steps are the same as the steps shown in FIG.

According to the present embodiment, the terminal device is set to the normal reception-disabled mode, and only when a predetermined input is performed, the terminal device is set to the reception-enabled mode in which attribute information can be received from the setting device. By setting a time limit etc. in the possible mode, malfunction of the power line carrier communication system,
Incorrect setting can be prevented, and a stable operation can be obtained.

Although the preferred embodiment of the present invention has been described above, the present invention is not limited to this embodiment but can be implemented in various forms.

[0038]

As described above, according to the first to tenth aspects of the present invention, it is easy to specify the correspondence between the actual terminal device connected to the power line and the terminal device displayed on the setting device. In addition, it is possible to prevent erroneous setting and malfunction of the terminal device.

[Brief description of the drawings]

FIG. 1 is a diagram showing a power line carrier terminal device in a first embodiment of a power line carrier system according to the present invention.

FIG. 2 is a diagram showing a power line carrier communication system in which the power line carrier terminal device is used.

FIG. 3 is a flowchart showing a position confirmation operation of a power line carrier terminal device in the power line carrier communication system.

FIG. 4 is a diagram showing another embodiment of the power line carrier terminal device in the power line carrier communication system.

FIG. 5 shows a second example of the power line carrier communication system according to the present invention.
FIG. 6 is a diagram showing a power line carrier terminal device according to the embodiment of the present invention.

FIG. 6 is a flowchart showing an operation of confirming a position of a power line carrier terminal device in the power line carrier communication system.

FIG. 7 is a diagram showing another embodiment of the power line carrier terminal device in the power line carrier communication system.

FIG. 8 shows a third example of the power line communication system according to the present invention.
5 is a flowchart showing the operation of the power line carrier terminal device according to the embodiment.

FIG. 9 is a flowchart showing another embodiment of the power line carrier terminal device in the power line carrier system.

[Explanation of symbols]

 Reference Signs List 3 piezoelectric buzzer 4 LED unit 8 infrared receiving unit 10 operation switch 11 infrared receiving unit A terminal device B setting device

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Miyuki Oshinda 1048 Kazuma Kadoma, Kadoma City, Osaka Prefecture F-term in Matsushita Electric Works (reference) 5K046 AA03 BA00 BB06 CC05 PP01 PS29 PS47 YY01 5K048 BA12 DC06 EB01 FB11 HA23

Claims (10)

[Claims] 1. A power line carrier terminal device which is a controlled device, and identification information of the power line carrier terminal device is acquired by power line carrier communication and displayed as a list. A power line carrier setting device for setting attribute information such as, and a power line carrier communication system in which the power line carrier terminal device is provided with a notification unit, and wherein the power line carrier setting device includes the power line carrier. A display unit capable of displaying a list of the power line carrier terminal devices from the identification information of the terminal device for power line, and selecting an arbitrary power line carrier terminal device from the power line carrier terminal devices listed in the display unit Transmitting a confirmation signal, the power line carrier terminal device having received the confirmation signal, when reporting that the confirmation signal has been received by the reporting means, Serial power line carrier for setting device, a power line carrier communication system and transmits the attribute information to the power line carrier terminal device. 2. The power line communication system according to claim 1, wherein said notifying unit is a light emitting unit including a light emitting element. 3. The power line communication system according to claim 1, wherein said notifying unit is a sounding unit including a sounding element. 4. The power line carrier terminal device comprises: an operation input unit comprising an operation switch, an external input unit for receiving an input from an external device, and an input to the operation input unit or the external input unit. And a storage unit for storing a predetermined input pattern, which is a non-reception mode in which the attribute information from the power line carrier setting device cannot be normally received, and an input that matches the input pattern is the operation input. Unit or when input to the external input unit,
The power line carrier terminal device receives the attribute information from the power line carrier setting device after shifting from the non-receivable mode to a receivable mode in which the attribute information can be received. The power line carrier communication system according to any one of claims 1 to 3. 5. A power line carrier terminal device, which is a controlled device, obtains the identification information of the power line carrier terminal device by power line carrier communication, displays the list, and displays at least a link between the corresponding power line carrier terminal devices. A power line carrier setting device for setting attribute information such as information, and a power line carrier communication system in which the power line carrier terminal device is connected to a power line; An external input unit that receives an input, and the operation input unit or a storage unit that stores a predetermined input pattern input to the external input unit, wherein the power line carrier setting device includes the power line carrier terminal. A power line carrier communication system comprising: a display unit capable of displaying a list of power line carrier terminal devices from device identification information, wherein the power line carrier terminal device comprises: Acquires the identification information of the power line carrier terminal device via a power line, displays a list of the identification information on the display unit, and the input that matches the predetermined input pattern is the operation input unit or the external device. When input to the input unit, the power line carrier setting device transmits a detection signal indicating that an input has been made to the power line carrier terminal device to the power line carrier setting device. And transmitting the attribute information to a terminal device. 6. The power line carrier terminal device is normally in a non-reception mode in which the attribute information from the power line carrier setting device cannot be received. The power line communication system according to claim 5, wherein the mode shifts to a receivable mode in which the attribute information can be received. 7. The external input section is an infrared receiving section for receiving infrared rays, and the input pattern is that the infrared receiving section receives infrared rays. A power line carrier communication system according to claim 1. 8. The input pattern is such that the infrared receiving section continuously receives infrared rays, and the power line carrier terminal device enters the receivable mode only while infrared rays are continuously input. 8. The power line communication system according to claim 7, wherein when the infrared ray is no longer input, the mode shifts to the non-reception mode again. 9. The power line carrier terminal device, when receiving the attribute information from the power line carrier setting device in the receivable mode, shifts to the non-receivable mode again. Claim 4 or Claim 6
Alternatively, the power line communication system according to claim 7. 10. The power line carrier terminal device shifts to the non-receivable mode again when a predetermined time elapses after shifting to the receivable mode. Alternatively, the power line communication system according to claim 7.