JP2012047889A - Karaoke system, karaoke device, and remote control terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To resolve a communication failure in wireless LAN communication between a karaoke device and a remote control terminal.SOLUTION: A remote control terminal 20 starts communication with a karaoke device 10 using a communication path 1 and adds the communication path 1 to a priority list as a highest priority. When a notice that switching to another communication path has taken place is received from the karaoke device 10, the communication path is switched to the other communication path also on the remote control terminal 20 side, and that communication path is registered to the priority list as the highest priority, and subsequent priorities are moved down. If the communication path 1 is the communication path of the second highest priority at the time of a communication failure, the communication path is switched to the communication path 1 and the system is reset. If the communication path of the second highest priority is a communication path other than the communication path 1, the communication path is switched to the communication path of the second highest priority and that communication path is registered to the priority list as the first priority, and the communication path with the communication failure is deleted from the priority list.

Description

  The present invention relates to a technique for eliminating a communication failure when a communication failure occurs in wireless LAN communication between a karaoke apparatus and a remote control terminal.

  2. Description of the Related Art Conventionally, a karaoke system in which a karaoke device that sequentially plays a song reserved in response to a request from a user and a remote control terminal that can perform an operation for requesting a song reservation for the karaoke device are communicably connected It has been known.

  In this type of karaoke system, connection information for performing wireless LAN communication is transmitted from the remote control terminal to the karaoke device using infrared communication, and the karaoke device changes the setting contents using the connection information, and the karaoke device The wireless LAN communication between the karaoke apparatus and the remote control terminal is started after matching the communication path of the remote control terminal and the communication path of the remote control terminal (see, for example, Patent Document 1).

JP 2006-78759 A (8th and 9th pages, FIGS. 6 and 7)

  However, the above karaoke system has the following problems. That is, a communication failure may occur after wireless LAN communication is started between the karaoke apparatus and the remote control terminal as described above. In order to deal with such a situation, a variety of communication paths are installed in advance in both the karaoke apparatus and the remote control terminal, and when a communication failure occurs, the communication path from which the communication failure has occurred is changed to another It is desirable to eliminate the communication failure by switching to the communication path.

  In the karaoke apparatus, only one type of communication path is installed in the initial state, and other types of communication paths are often additionally installed when a communication failure occurs. In the remote control terminal, since communication is not always performed with the same karaoke apparatus, it is common to install various types of communication paths in advance. When another type of communication path is additionally installed, the communication path on the karaoke device side is different from the communication path on the remote control terminal side, so that the communication path on the remote control terminal side depends on the communication path on the karaoke device side. Need to be changed.

  The present invention has been made in view of such problems, and an object of the present invention is to eliminate a communication failure when a communication failure occurs in wireless LAN communication between the karaoke apparatus and the remote control terminal. To provide technology.

  The karaoke system according to claim 1, which has been made in order to solve the above-described problem, can perform a karaoke device that sequentially plays songs reserved in response to a request from a user and an operation for requesting song reservation for the karaoke device. A remote control terminal, and the karaoke apparatus and the remote control terminal are communicably connected.

  The karaoke apparatus includes a device-side communication unit that transmits and receives various types of information to and from the remote control terminal, and a device-side communication control unit that controls the device-side communication unit to transmit and receive various types of information to and from the remote control terminal.

  Of these, the device-side communication unit is pre-installed with one or more types of communication paths for transmitting and receiving various types of information to and from the remote control terminal, and one of these one or more types of communication paths is connected to the remote control terminal. It is initially set as a communication path used for sending and receiving various types of information, and different types of communication paths can be added, and when a new communication path is added, the added communication path is the remote control terminal. It is set as a communication path used for transmission / reception of various types of information to / from.

  In addition, the device-side communication control unit determines whether a new communication path is added to the device-side communication unit, and when a new communication path is added to the device-side communication unit, the added communication path The device-side communication unit is controlled to communicate various information with the remote control terminal using the route, and the remote control terminal is notified that a new communication route has been added.

On the other hand, the remote control terminal includes a terminal side communication unit, a list storage unit, a terminal side communication control unit, a communication failure determination unit, and a list editing unit.
Of these, the terminal-side communication unit is preinstalled with a plurality of types of communication paths including a communication path pre-installed in the device-side communication unit of the karaoke device, and one of the plurality of types of communication routes is It is set as a communication path used for transmission / reception of various information between them, and various information is transmitted / received to / from the karaoke apparatus using the set communication path.

  The list storage unit stores a priority list. The priority list indicates the priority order of communication paths used by the terminal-side communication unit for transmission and reception of various information with the karaoke device. In the initial state, the type of communication path initially set in the device-side communication unit has the highest priority. Registered as a communication path.

  The terminal-side communication control unit selects the communication route with the highest priority among the communication routes registered in the priority list stored in the list storage unit every time the priority list is edited, and the terminal-side communication unit And various information is transmitted to and received from the remote control terminal using the selected communication path.

The communication failure determination unit determines whether or not a communication failure has occurred when various types of information are transmitted and received between the terminal-side communication unit and the karaoke apparatus.
In addition, when the terminal-side communication unit receives a notification that a new communication path has been added from the karaoke device, the list editing unit has a priority that the list storage unit stores the newly added communication path Register the highest priority communication path in the order list. When the communication failure determining unit determines that a communication failure has occurred, the list editing unit stores the highest priority of the priority list in which the list storage unit stores the communication path in which the communication failure has occurred. Are excluded from high communication paths.

  For example, when the communication failure determination unit determines that a communication failure has occurred as described above, the list editing unit performs communication with the highest priority in the priority list stored in the list storage unit. Instead of registering a communication path with a communication failure as a route, register the communication route with the second highest priority after the communication route with the communication failure as the communication route with the highest priority. (Claim 2).

  In addition, when the communication failure determination unit determines that a communication failure has occurred as described above, the list editing unit stores the communication path in which the communication failure has occurred in the priority list that the list storage unit stores. In other words, it is deleted from the communication path with the highest priority.

  When the communication path with the highest priority among the communication paths registered in the priority list stored in the list storage unit is updated, the terminal side communication control unit controls the terminal side communication unit to that effect. The karaoke device notifies the karaoke device, and the device communication control unit of the karaoke device uses the communication path notified from the remote control terminal to communicate the various information with the remote control terminal. Control.

  When the communication path that is initially set in the priority list stored in the list storage unit is registered as the communication path with the highest priority, the reset execution unit may execute a system reset (claims). 4).

  According to the karaoke system of the present invention configured as described above, when a communication failure occurs in wireless LAN communication between the karaoke device and the remote control terminal, the communication failure can be solved.

  In addition, this invention is realizable also as a karaoke apparatus (Claim 5) and a remote control terminal (Claim 6) used for the karaoke system which concerns on Claim 1.

1 is a block diagram illustrating an overall configuration of a karaoke network system 1. FIG. (A) is explanatory drawing of a connection state establishment process, (b) is explanatory drawing which shows a priority list. (A) is a flowchart which shows the connection state establishment process by the karaoke apparatus 10, (b) is a flowchart which shows the connection state establishment process by the remote control terminal 20.

Embodiments of the present invention will be described below with reference to the drawings. In addition, this invention is not limited to this embodiment, It is possible to implement in various aspects.
[1. Description of the configuration of the karaoke network system 1]
As shown in FIG. 1, a karaoke network system 1 as a karaoke system performs a karaoke device 10 that sequentially plays songs reserved in response to a request from a user, and an operation for requesting a song reservation for the karaoke device 10. The remote control terminal 20 capable of communication is communicably connected by a wireless LAN as bidirectional communication and infrared communication as one-way communication. In FIG. 1, one karaoke apparatus 10 and one remote control terminal 20 are shown.

  Here, the bidirectional communication refers to a communication method for performing mutual communication between the karaoke apparatus 10 and the remote control terminal 20 based on the same setting. The LAN may be a wired system or a wireless system. In addition, unidirectional communication refers to a communication method for performing communication only in the direction from the remote control terminal 20 to the karaoke apparatus 10, unlike bidirectional communication.

  And the communication path used when transmitting / receiving data between the karaoke apparatus 10 and the remote control terminal 20 is selected by performing the connection state establishment process (refer FIG. 3) mentioned later, and the selected communication A connection state using a route is established.

  In this embodiment, the communication path 1 is a communication path using both infrared communication and wireless LAN communication, and the communication path 2 is communication using the infrastructure mode of wireless LAN communication. The communication path 3 is a communication path using the ad hoc mode of wireless LAN communication. Note that the communication path 1 also has a reset function.

  Note that only the communication path 1 is mounted in the karaoke apparatus 10 in advance, and the communication paths 2 to N can be additionally mounted. The remote control terminal 20 is preinstalled with a large number of communication paths 1 to N.

  The karaoke apparatus 10 is connected to the center (host server) 30 via the Internet so as to be communicable. The center 30 includes a known computer system, and includes a communication unit 31 that controls communication via the Internet, an HDD 32 that stores various information, a control unit 33 that controls the entire server, and the like. The center 30 has a function of providing karaoke music to the karaoke apparatus 10.

[1.1. Description of configuration of karaoke apparatus 10]
The karaoke apparatus 10 includes a display unit 11 that displays various images, a control unit 12 that controls the entire apparatus, a music playback unit 13 that plays back music data (karaoke performance), and an operation unit 14 that includes a plurality of key switches. , A communication unit 15 for controlling communication via the Internet or LAN and receiving an infrared signal, and an HDD 16 for storing the accompaniment content of the performance music and music data (karaoke music data) indicating the lyrics. This karaoke apparatus 10 has a function of reproducing karaoke music.

The display unit 11 includes a TV (not shown) and can display lyrics telops and background images.
The music playback unit 13 includes a microphone, a MIDI playback unit, an amplifier, and a speaker (not shown). The music playback unit 13 performs karaoke performance on music data and outputs singing voice input from the microphone.

  The communication unit 15 is preinstalled with a communication path for transmitting and receiving various types of information to and from the remote control terminal 20. In the present embodiment, the communication unit 15 is equipped with one type of communication path (communication path 1), and is initially set as a communication path used for transmitting and receiving various types of information to and from the remote control terminal 20. Furthermore, different types of communication paths (communication paths 2 to N) can be added to the communication unit 15. When a new communication path is added, the added communication path is connected to the remote control terminal 20. It is set as a communication path used for transmission / reception of various types of information.

  The control unit 12 includes a CPU, a ROM, a RAM, and the like. When the bidirectional communication is performed between the karaoke apparatus 10 and the remote control terminal 20, the control unit 12 specifies, for example, various settings while identifying each other, for example, an ESS-ID (Extended Service) of the IEEE 802.11 standard. Set Identifier). Further, the control unit 12 determines whether or not a new communication path is added to the communication unit 15. When a new communication path is added to the communication unit 15, the control unit 12 uses the added communication path. The communication unit 15 is controlled to communicate various information with the remote control terminal 20, and the remote control terminal 20 is notified that a new communication path has been added.

The communication unit 15 corresponds to the device side communication unit. Further, the control unit 12 corresponds to the device side communication control unit.
[1.2. Description of the configuration of the remote control terminal 20]
The remote control terminal 20 displays a variety of information, a control unit 22 that controls the entire apparatus, an operation unit 23 including a plurality of keys and switches, controls communication via the Internet, and transmits infrared signals. The communication unit 24, a non-volatile memory 25 for storing various information, and the like are provided, and has an information display function and an input function for a user to perform an input operation. The nonvolatile memory 25 stores a music database and the like.

  The communication unit 24 is preinstalled with a plurality of types of communication paths (communication paths 1 to N) including a communication path (communication path 1) mounted in advance in the communication unit 15 of the karaoke apparatus 10. This is because the remote control terminal 20 does not always perform communication with the same karaoke apparatus 10, and therefore it is desirable to install various types of communication paths in advance. And in the communication part 24, one of these several types of communication paths is set as a communication path used for transmission / reception of various information between the karaoke apparatuses 10, and the karaoke apparatus 10 is set using the set communication paths. Sends and receives various information to and from.

  The non-volatile memory 25 stores a priority list as illustrated in FIG. This priority list shows the priority order of communication paths used by the communication unit 24 to transmit and receive various information to and from the karaoke apparatus 10. In the initial state, the communication path 1 that is initially set in the communication unit 15 of the karaoke apparatus 10 has the highest priority. It is registered as a communication path with a higher rank.

  The control unit 22 selects the communication route having the highest priority among the communication routes registered in the priority list stored in the nonvolatile memory 25 every time the priority list is edited, and controls the communication unit 24. Then, various information is transmitted to and received from the remote control terminal 20 using the selected communication path. The control unit 22 also has a function of editing the priority list (described later).

The control unit 22 has a function of determining whether or not a communication failure has occurred when various types of information are transmitted and received between the communication unit 24 and the communication unit 15 of the karaoke apparatus 10.
The communication unit 24 corresponds to a terminal side communication unit and a reset execution unit. The nonvolatile memory 25 corresponds to the list storage unit. The control unit 22 corresponds to a terminal-side communication control unit, a communication failure determination unit, and a list editing unit.

[3. Explanation of connection status establishment process]
Next, connection state establishment processing executed by the karaoke network system 1 will be described with reference to FIGS. 2A is an explanatory diagram of the connection state establishment process, and FIG. 2B is an explanatory diagram illustrating a priority list.

  This connection state establishment process includes a connection state establishment process by the karaoke apparatus 10 (see FIG. 3A) and a connection state establishment process by the remote control terminal 20 (see FIG. 3B). Hereinafter, it demonstrates in order.

[3.1. Description of connection state establishment process by karaoke apparatus 10]
First, the connection state establishment process by the karaoke apparatus 10 shown in FIG.
This process is repeatedly executed when the karaoke apparatus 10 is powered on.

In the first step 110 (S110), it is determined whether or not a new communication path has been added to the karaoke apparatus 10.
If it is determined that a new communication path has not been added (S110: NO), this step is repeatedly executed until it is determined that a new communication path has been added, and waits.

On the other hand, when it is determined that a new communication path has been added (S110: YES), the process proceeds to S120.
In S120, the communication path is switched to a new communication path.

In subsequent S130, a notification of switching to a new communication path (communication path switching notification) is sent to the remote control terminal 20.
Then, this process ends.

[3.2. Description of connection state establishment processing by remote control terminal 20]
Next, connection state establishment processing by the remote control terminal 20 shown in FIG.
This process is repeatedly executed when the remote control terminal 20 is powered on.

In the first step 205 (S205), communication with the karaoke apparatus 10 is started using the communication path 1.
In subsequent S210, the communication path 1 is added to the first priority in the priority list. At this stage, the communication path installed in the karaoke apparatus 10 is only the communication path 1, and the value of N is a numerical value “1”.

In subsequent S215, it is determined whether or not notification (communication path switching notification) indicating that switching to the communication path has been received from karaoke apparatus 10.
If it is determined that the communication path switching notification has not been received (S215: NO), it is determined that there is no fact that the communication path has been changed by adding a new communication path in the karaoke apparatus 10, and the process directly proceeds to S225. Transition.

  On the other hand, if it is determined that the communication path switching notification has been received (S215: NO), it is determined that there is a fact that the communication path has been changed by adding a new communication path in the karaoke apparatus 10, and the process proceeds to S220. To do.

  In S220, the communication path is switched to the communication path added to the karaoke apparatus 10, and the new communication path (here, communication path 2) is registered in the first priority list, and the priority order of other registered communication paths is set. Move it down. Then, the process proceeds to S225.

In S225, it is determined whether or not a communication failure has occurred in communication between the karaoke apparatus 10 and the remote control terminal 20.
If it is determined that no communication failure has occurred (S225: NO), there is no problem in continuing communication between the karaoke apparatus 10 and the remote control terminal 20 using the communication path having the first priority. And the process proceeds to S255 described later.

  On the other hand, when it is determined that a communication failure has occurred (S225: YES), communication between the karaoke apparatus 10 and the remote control terminal 20 is continued using the communication path having the first priority. If there is a problem, the process proceeds to S230.

In S230, it is determined whether or not the latest communication path (that is, the communication path with the second highest priority) is other than communication path 1.
If it is determined that the latest communication path is not other than the communication path 1 (that is, the communication path 1) (S230: NO), the process proceeds to S235 in order to eliminate the communication failure by performing a system reset.

In S235, the communication path is switched to communication path 1 and reset is performed.
In subsequent S240, the communication path in which the communication failure has occurred is deleted from the first priority list, and the priority order of other registered communication paths is increased. And in order to judge whether the communication path | route switching notification from the karaoke apparatus 10 was received, it returns to S215.

  On the other hand, if it is determined that the most recent communication path is other than communication path 1 (S230: YES), the process proceeds to S245 in order to eliminate the communication failure by switching to another communication path without resetting. .

  In S245, the communication path is switched to the nearest communication path (that is, the communication path with the second highest priority), and the latest communication path is registered in the first priority list. Note that the communication path in which the communication failure has occurred is deleted from the priority list (S250). Then, the process proceeds to S255.

In S255, it is determined whether or not the power of the remote control terminal 20 is off.
When it is determined that the power source of the remote control terminal 20 is on rather than off (S255: NO), the process returns to S215 to determine whether a communication path switching notification from the karaoke apparatus 10 has been received.

On the other hand, when it is determined that the power of the remote control terminal 20 is off (S255: YES), this process is terminated.
[4. Effects of the embodiment]
As described above, according to the karaoke network system 1 of the present embodiment, when a communication failure occurs in the wireless LAN communication between the karaoke apparatus 10 and the remote control terminal 20, the communication failure can be solved.

DESCRIPTION OF SYMBOLS 1 ... Karaoke network system, 10 ... Karaoke apparatus, 11 ... Display part, 12 ... Control part, 13 ... Music reproduction part, 14 ... Operation part, 15 ... Communication part, 16 ... HDD, 20 ... Remote control terminal, 21 ... Display part , 22 ... control unit, 23 ... operation unit, 24 ... communication unit, 25 ... non-volatile memory, 30 ... center, 31 ... communication unit, 32 ... HDD, 33 ... control unit

Claims (6)

A karaoke device that sequentially plays songs reserved in response to a request from a user and a remote control terminal that can perform an operation for requesting reservation of a song to the karaoke device, wherein the karaoke device and the remote control terminal communicate with each other A karaoke system that can be connected,
The karaoke device
A device-side communication unit that transmits and receives various types of information to and from the remote control terminal;
A device-side communication control unit that controls the device-side communication unit to transmit and receive various types of information to and from the remote control terminal,
The device-side communication unit is preinstalled with one or more types of communication paths for transmitting and receiving various types of information to and from the remote control terminal, and one of the one or more types of communication paths is between the remote control terminal. The communication path is initially set as a communication path used for transmission / reception of various types of information. Further, different types of communication paths can be added, and when a new communication path is added, the added communication path is used as the remote controller. It is set as a communication path used for sending and receiving various information to and from the terminal,
The device-side communication control unit determines whether or not a new communication path is added to the device-side communication unit, and when a new communication path is added to the device-side communication unit, the added device Control the apparatus side communication unit to communicate various information with the remote control terminal using a communication path, and notify the remote control terminal that a new communication path has been added,
On the other hand, the remote control terminal
A plurality of types of communication paths including a communication path mounted in advance in the device-side communication unit of the karaoke apparatus are mounted in advance, and one of the plurality of types of communication paths is used for various information with the karaoke apparatus. A terminal-side communication unit that is set as a communication path used for transmission and reception, and transmits and receives various information to and from the karaoke apparatus using the set communication path;
Indicates the priority order of communication paths used by the terminal-side communication unit for transmission / reception of various information with the karaoke device, and in the initial state, the type of communication path initially set in the device-side communication unit has the highest priority A list storage unit for storing a priority list registered as:
The communication path having the highest priority among the communication paths registered in the priority list stored in the list storage unit is selected every time the priority list is edited, and the terminal side communication unit is controlled, A terminal-side communication control unit that transmits and receives various types of information to and from the remote control terminal using the selected communication path;
A communication failure determination unit that determines whether or not a communication failure has occurred when transmitting and receiving various types of information between the terminal-side communication unit and the karaoke device;
When the terminal side communication unit receives a notification that a new communication path is added from the karaoke device, the newly added communication path is stored in the priority list stored in the list storage unit. When the communication failure determining unit determines that the communication failure has occurred, the list storage unit registers the communication route in which the communication failure has occurred. A list editing unit for excluding from a communication path having the highest priority of the priority list to be stored,
When the communication path having the highest priority among the communication paths registered in the priority list stored in the list storage unit is updated, the terminal side communication control unit notifies the terminal side communication unit To notify the karaoke device,
The device-side communication control unit of the karaoke device controls the device-side communication unit to communicate various information with the remote control terminal using a communication path notified from the remote control terminal. Karaoke system to do. The karaoke system according to claim 1,
When the communication failure determination unit determines that the communication failure has occurred, the list editing unit is registered as the highest priority communication path in the priority list stored in the list storage unit. The communication path having the second highest priority is registered as the communication path having the highest priority instead of the communication path in which the communication failure has occurred. Karaoke system to do. In the karaoke system of any one of Claim 1 or Claim 2,
The list editing unit stores the priority list in which the list storage unit stores a communication path in which the communication failure has occurred when the communication failure determination unit determines that the communication failure has occurred. The karaoke system is characterized in that it is deleted from the communication path having the highest priority. The karaoke system according to any one of claims 1 to 3,
A karaoke system comprising reset execution means for executing a system reset when a communication path initially set in the priority list stored in the list storage unit is registered as a communication path having the highest priority. . A karaoke device that sequentially plays songs reserved in response to a request from a user and a remote control terminal that can perform an operation for requesting reservation of a song to the karaoke device, wherein the karaoke device and the remote control terminal communicate with each other The karaoke apparatus used in a karaoke system that can be connected,
A device-side communication unit that transmits and receives various types of information to and from the remote control terminal;
A device-side communication control unit that controls the device-side communication unit to transmit and receive various types of information to and from the remote control terminal,
The device-side communication unit is preinstalled with one or more types of communication paths for transmitting and receiving various types of information to and from the remote control terminal, and one of the one or more types of communication paths is between the remote control terminal. The communication path is initially set as a communication path used for transmission / reception of various types of information. Further, different types of communication paths can be added, and when a new communication path is added, the added communication path is used as the remote controller. It is set as a communication path used for sending and receiving various information to and from the terminal,
The device-side communication control unit determines whether or not a new communication path is added to the device-side communication unit, and when a new communication path is added to the device-side communication unit, the added device Control the apparatus side communication unit to communicate various information with the remote control terminal using a communication path, and notify the remote control terminal that a new communication path has been added,
The apparatus-side communication control unit controls the apparatus-side communication unit to perform communication of various types of information with the remote control terminal using a communication path notified from the remote control terminal. apparatus. A karaoke device that sequentially plays songs reserved in response to a request from a user and a remote control terminal that can perform an operation for requesting reservation of a song to the karaoke device, wherein the karaoke device and the remote control terminal communicate with each other A device-side communication unit that can be connected to the karaoke device and transmits / receives various information to / from the remote control terminal, and a device that controls the device-side communication unit to transmit / receive various information to / from the remote control terminal. A communication control unit, and the device-side communication unit is preinstalled with one or more types of communication paths for transmitting and receiving various types of information to and from the remote control terminal. Of these one or more types of communication paths, One is initially set as a communication path used for transmission / reception of various types of information to / from the remote control terminal, and different types of communication paths can be added. When a new communication path is added, the added communication path is set as a communication path used for transmission / reception of various information to / from the remote control terminal, and the device-side communication control unit It is determined whether or not a new communication path is added to the device side communication unit, and when a new communication path is added to the device side communication unit, the remote control terminal is connected to the remote control terminal using the added communication path. The remote control terminal used in the karaoke system for controlling the apparatus side communication unit to communicate various information between and notifying the remote control terminal that a new communication path has been added,
A plurality of types of communication paths including a communication path mounted in advance in the device-side communication unit of the karaoke apparatus are mounted in advance, and one of the plurality of types of communication paths is used for various information with the karaoke apparatus. A terminal-side communication unit that is set as a communication path used for transmission and reception, and transmits and receives various information to and from the karaoke apparatus using the set communication path;
Indicates the priority order of communication paths used by the terminal-side communication unit for transmission / reception of various information with the karaoke device, and in the initial state, the type of communication path initially set in the device-side communication unit has the highest priority. A list storage unit for storing a priority list registered as:
The communication path having the highest priority among the communication paths registered in the priority list stored in the list storage unit is selected every time the priority list is edited, and the terminal side communication unit is controlled, A terminal-side communication control unit that transmits and receives various types of information to and from the remote control terminal using the selected communication path;
A communication failure determination unit that determines whether or not a communication failure has occurred when transmitting and receiving various types of information between the terminal-side communication unit and the karaoke device;
When the terminal side communication unit receives a notification that a new communication path is added from the karaoke device, the newly added communication path is stored in the priority list stored in the list storage unit. When the communication failure determining unit determines that the communication failure has occurred, the list storage unit registers the communication route in which the communication failure has occurred. A list editing unit for excluding from a communication path having the highest priority of the priority list to be stored,
When the communication path having the highest priority among the communication paths registered in the priority list stored in the list storage unit is updated, the terminal side communication control unit notifies the terminal side communication unit A remote control terminal characterized by controlling the notification to the karaoke device.

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