TWI750586B - Operation terminal, communication method and program - Google Patents

Abstract

An object of the present invention is to provide an operation terminal that can easily add a function of using at least one information of voice, text, and image to a lighting control system. The operation terminal 10 includes an operation unit 11 that accepts operations for controlling the load 40 including the lighting device; a notification unit 12 that notifies at least one of audio, text, and image information; and a communication unit 13 . The communication unit 13 transmits information for controlling the load 40 and receives or transmits information of at least one of audio, text, and image by the same transmission method.

Description

Operation terminal, communication method and program

The present invention relates to an operation terminal, a communication method and a program.

Conventionally, a lighting control system (for example, Patent Document 1) is disclosed which includes a load such as a host, a lighting device, and a switch operated by a user. The host recognizes the operation of the switch, and the host controls the load based on the operation. According to this lighting control system, the host determines the content of the signal based on the operation of the switch, and sends a signal to the load of the destination included in the signal, so that the load and the switch are connected one-to-one, and there is no need for control from the switch. The wiring of the load. Thereby, the wiring of the lighting control system can be reduced, for example, in a large-scale building. [Prior Art Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open No. 08-47068

[Problems to be Solved by Invention]

According to the requirement of multi-functionalization, operation terminals such as switches of the above-mentioned lighting control system are not only expected to be used for the function of controlling loads, but also to be additionally used for the function of using at least one or more information of voice, text and image.

However, in the case of applying an operation terminal having a function of using at least one of information of sound, text and image in the previous lighting control system, in addition to the wiring for communicating the information for controlling the load, Wiring that needs to be used for communication of at least one of audio, text and image information will increase the overall size and cost of the lighting control system.

Therefore, the objective of this invention is to provide the operation terminal etc. which can easily add the function which uses the information of at least 1 or more of an audio|voice, a text, and an image in a lighting control system. [Technical means to solve problems]

An operation terminal according to an aspect of the present invention includes: an operation unit that accepts operations for controlling a load including a lighting device; a notification unit that notifies at least one of audio, text, and image information; and a communication unit; In addition, the above-mentioned communication section transmits the information for controlling the above-mentioned load, and receives or transmits at least one or more information of the above-mentioned voice, text, and image by the same transmission method.

A communication method of one aspect of the present invention is a communication method for a control device for controlling a load including a lighting device and the above-mentioned load, and transmits information for controlling the above-mentioned load, and transmits audio, text, and text by the same transmission method. and the reception or transmission of at least one or more information of images.

A program of one aspect of the present invention is a program for causing a computer to execute the above-mentioned communication method. [Effect of invention]

According to the operation terminal or the like of one aspect of the present invention, it is possible to easily add a function of using information of at least one of audio, text, and image.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, the embodiments described below are those showing a preferred specific example of the present invention. Therefore, the numerical values, shapes, constituent elements, arrangement and connection form of constituent elements, steps and order of steps, etc. shown in the following embodiments are merely examples, and are not intended to limit the present invention. Therefore, among the structural requirements of the following embodiments, those that are not described in the independent claims that represent the highest-level concept of the present invention will be described as arbitrary structural requirements.

In addition, each figure is a schematic diagram, and it is not a strict illustration. In addition, in each figure, the same code|symbol is attached|subjected to the same component.

(Embodiment) Hereinafter, the embodiment will be described with reference to FIGS. 1 to 8 .

[constitute] First, the configuration of the lighting control system according to the embodiment will be described with reference to FIG. 1 .

FIG. 1 is a block diagram showing an example of a lighting control system 100 according to the embodiment.

The lighting control system 100 includes an operation terminal 10 , a transmission unit 20 , a wireless access point (wireless AP) 30 , and a plurality of loads 40 . In the plurality of loads 40, a lighting device is included. In the lighting control system 100 , the operation terminal 10 , the transmission unit 20 , and the wireless AP 30 are connected to each other by a power line 110 . In addition, in the lighting control system 100, in addition to these devices, other operation terminals, relays or sensors for switching the power supply to the load 40 on and off may be connected to the power line 110, but the illustration is omitted. The lighting control system 100 is centered on the transmission unit 20 (in other words, the transmission unit 20 is the host), and can control the control object of the lighting control system 100 , ie, the load 40 of the lighting device and the like. The control of the lighting device as the load 40 is the on-off control of the lighting device, the dimming control, the situation control, the monitoring control, and the like. Situational control is based on the location of lighting installations such as duty areas, entrances and exits, conference rooms, lounges, Japanese-style rooms, Western-style rooms, bedrooms, study rooms, etc., or the time to use lighting installations in the morning, noon, evening, meal time, reunion time, etc. Lighting fixtures with dimming and toning control such as belts. The monitoring control is to monitor the control state of the lighting device. These controls can be performed by the user's operation of the operation terminal 10 .

The transmission unit 20 is a host controller that becomes the center and operates in the lighting control system 100 . The transmission unit 20 transmits the signal from the operation terminal 10 connected to the power line 110 to the load 40 via the wireless AP 30 . In addition, the load 40 may be connected to the power line 110 without the wireless AP 30 , and the transmission unit 20 may also directly transmit the signal from the operation terminal 10 connected to the power line 110 to the load 40 .

The wireless AP 30 communicates with the load 40 wirelessly, and controls the load 40 according to the instruction from the transmission unit 20 (specifically, the information for controlling the load 40 sent by the operation terminal 10 to the transmission unit 20 ). For example, when the wireless AP 30 receives an instruction to turn on a specific lighting device as the load 40, it controls the specific lighting device by turning on the specific lighting device, and when receiving an instruction to turn off the specific lighting device, The specific lighting device is controlled in a manner of disconnecting the specific lighting device. In addition, the load 40 may also be connected to the power line 110 via, for example, a relay, instead of the wireless AP 30 . In this case, when the relay receives an instruction to turn on the power supply to the load 40 connected to itself, the relay turns on the power supply to the load 40 connected to itself, and when it receives a disconnection to the load 40 connected to itself When the power supply of the load 40 is indicated, the power supply to the load 40 connected to itself is disconnected.

In addition, although the lighting control system 100 includes the transmission unit 20 , it may not include the transmission unit 20 , and the operation terminal 10 and the wireless AP 30 or the load 40 may communicate through the power line 110 instead of the transmission unit 20 .

In the lighting control system 100, for example, a time-sharing multiple transmission method is used, and the power line 110 includes a two-wire power line. In the power line 110, a signal (information) is transmitted by a pulse signal caused by a potential difference (eg, ±24 V) between the two lines. That is, the power supply and the information transmission can be performed simultaneously through the power line 110 . In addition, the lighting control system 100 adopts, for example, a cyclic transmission method, and the signal transmitted from the transmission unit 20 passes through all the devices connected to the power line 110 . Each machine confirms the content of the signal, and according to the content, the machine that needs the signal receives the signal. For example, each machine receives the signal when the signal contains its own address information, and ignores the signal when it does not contain its own address information. As such a lighting control system, for example, there is a system such as NMAST (registered trademark).

According to the lighting control system 100, wiring for connecting the loads 40 and the operation terminals 10 one-to-one is unnecessary. Specifically, when there are 8 loads 40 , when connecting the loads 40 and the operation terminal 10 with one-to-one wiring, at least 8 power lines (or signal lines) and 1 grounding line are required, but in the lighting control system 100 , may be only the power line 110 including 2 wires. Thereby, the wiring of the lighting control system 100 can be reduced, for example, in a large-scale building.

The operation terminal 10 is a device for accepting the operation of the user to control the load 40 including the lighting device, and is installed on, for example, a wall of a facility. In addition, the operation terminal 10 not only has a function for controlling the load 40, but also has a function of using at least one of audio, text, and image information. Details of the operation terminal 10 will be described with reference to FIGS. 2 and 3 .

FIG. 2 is a configuration diagram showing an example of the operation terminal 10 according to the embodiment. FIG. 3 is a front view showing the appearance of an example of the operation terminal 10 according to the embodiment.

The operation terminal 10 is a device including a processor (microprocessor), a memory, and a communication interface. The memory is ROM (Read Only Memory), RAM (Random Access Memory: random access memory), etc., which can store control programs executed by the processor. The operation terminal 10 includes an operation unit 11 , a notification unit 12 , a communication unit 13 , an acquisition unit 14 , a conversion unit 15 , and a first display unit 16 .

The operation unit 11 is configured to accept operations for controlling the load 40 including the lighting device, and as shown in FIG. By operating the operating portion 11, information for controlling the load 40 is generated according to the operation. Specifically, the processor of the operation terminal 10 executes the control program stored in the memory, thereby generating information for controlling the load 40 according to the operation.

The notification unit 12 is configured to notify information of at least one of audio, text, and image, and as shown in FIG. 3 , includes, for example, a second display unit that displays information of at least one of text and image. The second display portion is, for example, a signboard. In this way, in order to make the operation terminal 10 realize not only the function of controlling the load 40 but also the function of using at least one of audio, text, and image information, the operation terminal 10 also has the notification part 12 in addition to the operation part 11 . For example, in FIG. 3, as an example of the information of a character, an example of the information of "time-off work" being notified (displayed) by the notification part 12 is shown. For example, the notification unit 12 reports the information by receiving the information of at least one of characters and images by the communication unit 13, or by acquiring the information by the acquisition unit 14 described later. Specifically, the processor of the operation terminal 10 executes the control program stored in the memory, whereby the notification unit 12 retains the information.

The communication unit 13 is a communication interface for transmitting the information of the control load 40 and receiving or transmitting at least one of audio, text, and image information by the same transmission method. For example, the processor of the operation terminal 10 executes the control program stored in the memory, thereby performing the transmission and reception of such information. The communication unit 13 is the one that communicates via the power line 110 , and the operation terminal 10 is the one that receives the power supply via the power line 110 . That is, both information communication and power supply can be performed through the power line 110 . The power line 110 includes a 2-wire type power line as described above.

The transmission method used by the lighting control system 100 is, for example, the time-sharing multiple transmission method described above, and specifically, the transmission method used in a system such as NMAST (registered trademark). The communication unit 13 transmits the information for controlling the load 40 by the multiplex transmission method, and the reception or transmission of at least one of audio, text, and image information is also performed by the multiplex transmission method. The method of transmitting information for controlling the load 40 and receiving or transmitting information of at least one of audio, text, and image by the same transmission method is described in FIGS. 5 to 7 described later. instruction.

The acquisition unit 14 acquires information of at least one of audio, text, and image. The operation terminal 10 may have, for example, a microphone, and obtain sound information through the microphone. In addition, the operation terminal 10 may have, for example, a camera, and information of text or images can be obtained through the camera. In addition, the operation terminal 10 can communicate with a portable terminal such as a smartphone or a tablet computer, and can also acquire information on at least one of audio, text, and image acquired by the portable terminal through the portable terminal. The acquisition unit 14 can be realized by hardware resources such as a microphone and a camera, or can be realized by a program (software).

The converting unit 15 converts the information acquired by the acquiring unit 14 . The converting unit 15 converts, for example, the information acquired by the acquiring unit 14 into information for controlling the load 40 . Specifically, when the information acquired by the acquiring unit 14 is a sound intended to turn on the lighting device, the converting unit 15 recognizes that the sound means to turn on the lighting device through voice recognition, and converts the information acquired by the acquiring unit 14 Converted to information used to turn the lighting device on. In addition, the converting unit 15 may convert, for example, the information acquired by the acquiring unit 14 into information for setting the lighting control system 100 . Specifically, when the information acquired by the acquiring unit 14 is an image for setting the context control of the lighting device, the converting unit 15 recognizes the setting content of the context control for the image display through image recognition or the like , and convert the information obtained by the obtaining unit 14 into information for setting the context control. In addition, the image may be a QR code (registered trademark), and the conversion unit 15 may recognize the content displayed by the QR code (registered trademark). Then, the communication unit 13 transmits the information converted by the conversion unit 15 by the same transmission method as the transmission of the information for controlling the load 40 and the reception or transmission of at least one of audio, text, and image information. In addition, the communication unit 13 may transmit information of at least one of audio, text, and image before conversion.

The first display unit 16 is different from the notification unit 12, and is configured to perform display based on the operation of the operation unit 11. As shown in FIG. 3, for example, light is emitted by an LED (Light Emitting Diode) or the like. The luminous part. For example, when the lighting device is turned on and off by operating the operation part 11, when the lighting device is turned on, the first display part 16 (LED) emitting light of a specific color (eg green) is turned on, and when the lighting device is turned on When the lighting device is turned on, the first display unit 16 (LED) that emits light of a specific color (eg, red) is turned on. The 1st display part 16 can also be installed in the conventional operation terminal (wall switch etc.).

[action] Next, the operation of the operation terminal 10 will be described with reference to FIG. 4 .

FIG. 4 is a flowchart showing an example of the operation of the operation terminal 10 according to the embodiment.

First, the operation part 11 accepts the operation for controlling the load 40 including the lighting device (step S11). For example, the operation unit 11 accepts an operation for turning on the lighting device from the user.

Next, the communication unit 13 transmits information for controlling the load 40 (step S12). For example, the information is temporarily transmitted from the communication unit 13 to the transmission unit 20 via the power line 110 , and the transmission unit 20 transmits information for performing control corresponding to the information to the wireless AP 30 via the power line 110 . The wireless AP 30 turns on the lighting device according to the received signal.

When the lighting device is turned on, the lighting device or the wireless AP 30 sends information indicating that the lighting device is turned on to the transmission unit 20 via the power line 110 . The transmission unit 20 transmits at least one of information indicating that the lighting device has been turned on, a voice, a text, and an image to the operation terminal 10 via the power line 110 . In this way, the communication unit 13 of the operation terminal 10 receives information of at least one of audio, text, and image (step S13). At this time, the transmission of information for controlling the load 40 and the reception of at least one of audio, text, and image information are performed by the same transmission method.

Then, the reporting unit 12 reports information of at least one of audio, text, and image (step S14). For example, the notification unit 12 notifies that the lighting device has been turned on through at least one of audio, text, and image information. In addition, the reporting unit 12 not only reports the state of the lighting device, but also reports other information through at least one of information such as voice, text, and image. For example, when it reaches a preset time (for example, 17:00, etc.), the transmission unit 20 sends the information showing the image of the time off work to the operation terminal 10. As shown in FIG. 3, the notification part 12 ( second display unit) to display the image.

[transmission method] Next, a method of transmitting information for controlling the load 40 and receiving or transmitting information of at least one of audio, text, and image by the same transmission method will be described with reference to FIGS. 5 to 7 .

FIG. 5 is a diagram showing an example of a transmission signal used in the lighting control system 100 of the embodiment. For example, in FIG. 5, the transmission signal is shown when only information for controlling the load 40 is transmitted.

For example, in the transmission method used in a system such as NMAST (registered trademark), the transmission signal includes a rest band A, a start signal band B and C, a signal transmission band D for transmitting data, and a time gap for receiving a return signal, that is, a signal return Band E, and end signal bands F and G. The transmission signal is a complex-polar (±24 V) time-division multiplexed signal and transmits data by pulse width modulation of a carrier wave including pulse lines. In addition, since this kind of transmission signal is generally used in the NMAST (registered trademark) system, the detailed description is omitted.

For example, when only the transmission signal for controlling the information of the load 40 is transmitted, the information of at least one of audio, text and image is superimposed, thereby transmitting the information for controlling the load 40 using the same transmission method. , and the reception or transmission of at least one of audio, text and image information. Hereinafter, two specific examples of the method of superimposing at least one of audio, text, and image information will be described using FIG. 6 and FIG. 7 .

FIG. 6 is a diagram showing an example of a transmission signal for superimposing at least one of audio, text, and image information.

As shown in FIG. 6 , for example, at least one of audio, text, and image is displayed superimposed on the rest zone A and the start signal zones B and C so that the polarities are not reversed in the rest zone A and the start signal zones B and C. Packet P of the above information. In this way, it is possible to avoid interference between the transmission of information for controlling the load 40 and the reception or transmission of at least one of audio, text and image information, and the same transmission method can be used in the common power line 110. At the same time, the sending and receiving of such information is carried out.

FIG. 7 is a diagram showing another example of a transmission signal for superimposing at least one of audio, text, and image information.

For example, the transmission of information for controlling the payload 40 and the reception or transmission of at least one of audio, text, and image information are not necessarily performed simultaneously. For example, periodically (for example, at a frequency of 1 time in 2 times), the data on the information for controlling the load 40 is not transmitted in the signal transmission zone D, and at least one of audio, text, and image is displayed. The information packet P overlaps the signal transmission zone D and the signal return zone E. Thereby, it can be divided into the timing of sending information for controlling the load 40, and the timing of receiving or sending at least one of audio, text, and image information, and using the same transmission method on a common power line 110 to send and receive such information.

For example, by superimposing the packet P on the transmission signal, the transmission amount can be increased by a maximum of 40 times.

[Variation example] In the above description, the notification unit 12 includes a second display unit that displays information of at least one of characters and images, but may also include an audio output unit that outputs audio information. This will be described using FIG. 8 .

FIG. 8 is an external front view showing another example of the operation terminal 10 according to the embodiment.

As shown in FIG. 8 , the notification unit 12 may include, for example, a speaker as a sound output unit. For example, when the lighting device is turned off, the notification part 12 reports (voice output) the information of "extinguishing". For example, the communication unit 13 receives the information of the voice, or the obtaining unit 14 obtains the information, and the notification unit 12 reports the information.

[Effect, etc.] As described above, the operation terminal 10 includes: the operation unit 11 that accepts operations for controlling the load 40 including the lighting device; the notification unit 12 that notifies at least one of audio, text, and image information; and communication Section 13. The communication unit 13 transmits information for controlling the load 40 and receives or transmits information of at least one of audio, text, and image by the same transmission method.

Accordingly, since the transmission of information for controlling the load 40 and the reception or transmission of at least one of audio, text, and image information are performed by the same transmission method, this can be performed on the common power line 110 . Waiting for information to be sent and received. That is, for example, in a lighting control system having a function for controlling the load 40 installed in a facility, etc., when further information of at least one of audio, text, and image is added, it is not used for communication for control. In addition to the wiring of the information of the load 40, there is no need to provide wiring for communication of at least one or more information of voice, text, and image, so that the overall size and cost of the lighting control system 100 can be suppressed. In this way, in the lighting control system 100, it is possible to easily add a function of using information of at least one of audio, text, and image.

For example, in the lighting control system 100 , the operation terminal 10 having the function for controlling the load 40 and the function for using at least one of information such as sound, text and image may be mixed, and the operation terminal 10 having the function for controlling the load 40 functions but an operation terminal that does not have the function of using at least one of audio, text and image information. Therefore, in the lighting control system 100 , the previously existing operation terminal can also be gradually replaced with the multifunctional operation terminal 10 .

In addition, the operation terminal 10 further includes: an acquisition unit 14 that acquires information of at least one of audio, text, and image; and a conversion unit 15 that converts the information acquired by the acquisition unit 14; and the communication unit 13 may also use The above-mentioned transmission method transmits the information converted by the conversion unit 15 .

Information about at least one of audio, text, and image can be unconverted in the transmission unit 20, for example, or can be converted into a desired form in the operation terminal 10 as in this form (for example, converted into information for controlling the load 40 ), and send it to the load 40 .

In addition, the operation terminal 10 may further include a first display unit 16 that performs display based on the operation of the operation unit 11 , different from the notification unit 12 .

According to this, it is possible to confirm what operation is performed on the operation part 11 by the display of the first display part 16 . Moreover, in the present invention, the operation terminal 10 also has the notification unit 12 in addition to the first display unit 16, so not only the display is based on the operation of the operation unit 11, but also the notification unit 12 not only reports at least one of audio, text, and image the above information.

In addition, the communication unit 13 is one that communicates via the power line 110 , and the operation terminal 10 may be one that receives the power supply via the power line 110 .

Accordingly, power supply and information transmission and reception can be performed through the common power line 110 .

In addition, the power line 110 may include a 2-wire type power line.

Accordingly, for example, the wiring for connecting the load 40 and the operation terminal 10 one-to-one is unnecessary, and the wiring of the lighting control system 100 can be reduced.

Moreover, the notification part 12 may include the 2nd display part which displays the information of at least 1 or more of a character and an image.

Accordingly, information of at least one of characters and images can be notified by display.

In addition, the notification unit 12 may include an audio output unit that outputs audio information.

Accordingly, the information of the sound can be reported by the sound output.

(Other Embodiments) The operation terminal 10 according to the embodiment has been described above, but the present invention is not limited to the embodiment described above.

For example, in the above-described embodiment, the operation terminal 10 has the acquisition unit 14 and the conversion unit 15, but it may not be provided.

Moreover, although the operation terminal 10 has the 1st display part 16, for example in the said embodiment, it may not have.

In addition, for example, in the above-described embodiment, the communication unit 13 communicates via the power line 110 , but may not communicate via the power line 110 . For example, the communication unit 13 may communicate via a communication line or the like that is not used for a power line.

In addition, for example, in the above-mentioned embodiment, the transmission method is the transmission method used in a system such as NMAST (registered trademark), but if the transmission of information for controlling the load 40, and the audio, The reception or transmission of at least one of text and image information is not limited to this type of transmission.

Furthermore, the present invention can be implemented not only as the operation terminal 10 , but also as a communication method between a control device (eg, the operation terminal 10 ) and the load 40 for controlling the load 40 including the lighting device.

For example, as shown in FIG. 4, in this communication method, the transmission of information for controlling the load 40 (step S12), and the reception of at least one of audio, text, and images, or send (step S13).

For example, these steps can also be performed by a computer (computer system). Furthermore, the present invention realizes the steps included in these methods as a program for causing a computer to execute. Furthermore, the present invention can be realized as a non-transitory computer-readable recording medium such as a CD-ROM on which the program is recorded.

For example, when the present invention is implemented by a program (software), hardware resources such as CPU (Central Processing Unit), memory, and input/output circuits of a computer are used to execute the program, thereby executing each step. That is, the CPU obtains and calculates data from a memory, an input/output circuit, or the like, or outputs an operation result to a memory, an input/output circuit, or the like, and executes each step.

In addition, each constituent element included in the operation terminal 10 of the above-described embodiment may be implemented as a dedicated or general-purpose circuit.

In addition, each component included in the operation terminal 10 of the above-described embodiment can also be implemented as an integrated circuit (IC: Integrated Circuit), that is, an LSI (Large Scale Integration: Large Scale Integrated Circuit).

In addition, the integrated circuit is not limited to the LSI, and may be realized by a dedicated circuit or a general-purpose processor. A programmable FPGA (Field Programmable Gate Array: Field Programmable Gate Array) can also be used, or a reconfigurable processor that can reconfigure the connection and setting of the circuit units inside the LSI.

Furthermore, if the technology of integrating circuits replaced by LSIs is introduced due to the advancement of semiconductor technology or other derived technologies, it is of course possible to use this technology to realize the integration of various components included in the operation terminal 10 .

In addition, those skilled in the art can realize various modifications of the embodiments as thought by those skilled in the art, and forms realized by arbitrarily combining the constituent elements and functions of the respective embodiments without departing from the gist of the present invention are also included in the present invention.

10: Operation terminal 11: Operation Department 12: Reporting Department 13: Department of Communications 14: Acquisition Department 15: Conversion Department 16: The first display part 20: Transmission unit 30: Wireless AP 40: load 100: Lighting Control System 110: Power lines A: rest zone B: Start signal band C: start signal band D: Signal transmission band E: signal loopback F: End signal band G: end signal band P: packet S11: Steps S12: Steps Step S13 S14: Steps

FIG. 1 is a block diagram showing an example of the lighting control system of the embodiment. FIG. 2 is a block diagram showing an example of the operation terminal of the embodiment. FIG. 3 is an external front view showing an example of the operation terminal of the embodiment. FIG. 4 is a flowchart showing an example of the operation of the operation terminal of the embodiment. FIG. 5 is a diagram showing an example of a transmission signal used in the lighting control system of the embodiment. FIG. 6 is a diagram showing an example of a transmission signal for superimposing at least one of audio, text, and image information. FIG. 7 is a diagram showing another example of a transmission signal for superimposing at least one of audio, text, and image information. FIG. 8 is an external front view showing another example of the operation terminal of the embodiment.

10: Operation terminal

11: Operation Department

12: Reporting Department

13: Department of Communications

14: Acquisition Department

15: Conversion Department

16: The first display part

Claims (9)

An operation terminal connected to a power line, and comprising: an operation unit that accepts operations for controlling loads including lighting devices that are not connected to the power line; and a notification unit that notifies at least one of audio, text, and images information; and a communication unit that communicates via the power line; and the communication unit transmits information for controlling the load by the same transmission method, and at least one or more of the audio, text, and image. Receipt or transmission of information. The operation terminal according to claim 1, further comprising: an acquisition unit that acquires information of at least one of audio, text, and image; and a conversion unit that converts the information acquired by the acquisition unit; and the communication unit is configured by The above-mentioned transmission method transmits the information converted by the above-mentioned conversion section. The operation terminal according to claim 1 further includes a first display unit which is different from the notification unit and performs display based on an operation on the operation unit. The operation terminal of claim 1, wherein the operation terminal receives a power supplier via the power line. The operation terminal of claim 4, wherein the power line includes a 2-wire type power line. The operation terminal of claim 1, wherein the notification unit includes a second display unit that displays information of at least one of the characters and images. The operation terminal according to any one of claims 1 to 6, wherein the notification unit includes a sound output unit that outputs information of the sound. A communication method by a control device connected to an operation terminal of a power line for controlling a load not connected to the power line including a lighting device and the communication method of the above-mentioned load, and by the same transmission method via the above-mentioned power line Sending of information for controlling the above-mentioned load, and receiving or sending information of at least one of audio, text, and image. A program for causing a computer to execute the communication method as described in claim 8.

Images