JPH0698373A - Control system for av equipment - Google Patents

Abstract

PURPOSE:To connect and link freely AV equipments installed respectively in plural rooms. CONSTITUTION:AV equipments 11... installed in respective rooms 41... are in star-connected to a central controller 6 by buses 21... wired corresponding to the respective rooms 41.... When a control signal is sent to the central controller 6 from the AV equipments 1... arranged in the respective rooms 41..., a control signal is sent to the AV equipment of a room in the relation of connection and linking with the room in which the AV equipment to which the control signal is sent is installed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an AV device control system for transmitting a control signal of an AV device including an audio device and a visual device by using a DDB.

[0002]

2. Description of the Related Art FIG. 8 shows a pre-wired DDB (Dom).
Bus 2 compatible with stic Data Bus = D ² B)
And DDB corresponding outlet 5 ₁ ... each with a room 4 ₁ ...
1 shows the configuration of a control system for AV equipment to which the DDB compatible AV equipment 1 ₁ ... Is connected. In this control system, the DDB-compatible AV equipment 1 ₁ installed in each room 4 ₁ is sequentially connected by a bus 2 in a single stroke, and a terminator 3 composed of a resistor is connected to both ends of the bus 2. The AV devices 1 _{1 in} all the rooms 4 ₁ can be interlocked and controlled.

[0003]

By the way, as described above,
Pre-wired bus 2 and DDB compatible outlet 5₁
If you are building an AV device control system using ...
All rooms 4₁AV equipment 1 of₁When controlling ...
There is no problem in room 4,₁And room 4₃, Room 4 ₂And department
Ya 4_FourCan't be linked separately with
It was

The present invention has been made in view of the above-mentioned problems, and the object thereof is to freely connect and interlock AV devices installed in a plurality of rooms, respectively.
To provide a control system for V equipment.

[0005]

According to the invention of claim 1, in order to achieve the above object, a terminator is connected to both ends of a bus,
In a control system for AV devices in which DDB-compatible AV devices for interlocking control are sequentially connected by a bus, a centralized controller is provided in which a DDB bus that is pre-wired is star-connected to a DDB outlet provided in each room in a house. Based on the connection interlocking relationship between the rooms set in advance by the centralized controller, the control signal of the AV device in the room having the interlocking interlocking relationship is transmitted through the centralized controller.

According to a second aspect of the invention, in the first aspect of the invention, when the initialization sequence of the AV device is executed, the centralized controller responds to the initialization sequence instead of another AV device and executes the initialization sequence. It is characterized in that initialization registration is carried out in the AV device that is to be used. The invention of claim 3 is
In the invention of claim 1, when a routine setting command for reading the status of another AV device is received from the AV device, the read command is transmitted from the centralized controller to the other AV device to be read and read. The data for transmission collision is transmitted to the AV device on the side until the state data is sent from another AV device, and when the state data is received, it corresponds to the read command of the reading AV device. It is characterized in that state data is transmitted from the centralized controller to the AV device on the reading side.

[0007]

According to the invention of claim 1, even in the wiring system in which the AV equipment is connected by the pre-wired bus, the connection interlocking relationship of the AV equipment provided in each room can be freely combined. Yes, it can be linked via a centralized controller.

According to the invention of claim 2, in the invention of claim 1, the presence of AV equipment installed in another room is
It is possible to register the AV device executing the initialization sequence via the centralized controller. According to the invention of claim 3, in the invention of claim 1, when the state of the AV equipment installed in another room is read by the AV equipment in another room, the AV equipment on the reading side is burdened. Instead, it is possible to transmit the state data of the AV device installed in another room to the AV device on the reading side via the centralized controller.

[0009]

EXAMPLES The present invention will be described below with reference to examples. FIG. 1 shows a system according to an embodiment of the present invention. In this system, each room 4 ₁ ...
Corresponding outlets 5 ₁ ... are provided respectively, and outlets 5 ₁ ...
Prior wire bus 2 ₁ ... are connected by is star-connected to the central controller 6 against.

[0010] bus 2 _'1 each outlet 5 ₁ ... The AV equipment 1 ₁ ... is installed in each room 4 ₁ ... to be wiring in the room
It is subordinately connected with. Wherein the bus 2 ₁ ..., 2 ₁ 'is composed of three-wire pair of the signal lines and ground lines, terminator 3 the bus 2 ₁ ... one end of the central controller 6 side consisting of resistors
... are connected as shown in FIG. 2, also terminator 3 is also connected to the bus 2 ₁ '... One end of each room 4 ₁ ... within.

[0011] That terminator 3,3 is to be connected across a bus DDB are wired so as to correspond to each room 4 ₁ .... Central controller 6 to the transmission circuit 7 ₁ ... consisting of LSI for transmitting and receiving the DDB corresponding signal in response to the bus 2 ₁ ... signal line corresponding to each room 4 ₁ ..., the transmission circuit 7 ₁ ... and the It includes a CPU 8 for exchanging data between the rooms and processing the data, and a connection setting unit 9 for setting a connection interlocking relationship between the rooms. Connection setting section 9
It is provided with a DIP switch in response to each of the rooms 4 ₁ ... bus 2 ₁ ... of, so that it can be configured to connect interlocking by combination of connection interlocking and between any room of the entire room by setting the DIP switch Has become. FIG. 3 shows the state of each DIP switch SW ₁ ... When the system is set to interlock in all rooms. In this case, the first bit is turned on and the remaining bits are turned off.

Next, the processing steps of the method of the present invention will be described with reference to FIGS.
It will be described based on 6 and 7. Figure 4 shows the central controller 6 in a steady state, the flow of exchange of control signals between each room 4 ₁ ... AV equipment provided. When the control signal is transmitted from the AV equipment 1 ₁ installed in the room 4 ₁ through the bus 2 ₂ ′, 2 ₂ , the central controller 6 receives the control signal from the CPU 8 via the transmission circuit 7 ₁ . CPU8 performs transmission control of a control signal to the other room to determine whether the interlocking relationship room 4 ₁ and which room based on the setting contents of the connection setting section 9. Here, when the room 4 ₁ AV device 1 ₁ and room 4 ₂ of the AV apparatus 1 ₂ and a group of connection interlocking relationship, the bus 2 ₂ CPU 8 from the transmission circuit 7 ₂ of the central controller 6, via the bus 2 ₂ ' Control signal for room 1 ₂ A
The control signal is transmitted to the V equipment 1 ₂ but not to the rooms 4 ₃ ...

[0013] When the control signal from one of the rooms 4 ₃ AV equipment 1 _3, 1 ₄ is transmitted, room 4 ₃ and Room 4 _1, 4 ₂ and there is no connection interlocking relationship between The centralized controller 6 controls the AV devices 1 ₁ , 1 in these rooms 4 ₁ , 4 _2.
No control signal is transmitted to ₂ . In this way, A of the room 4 ₁ ...
Control signals are exchanged between the V devices 1 ₁ ... And the connection setting section 9 can freely set the connection interlocking relationship between the rooms.

By the way, each room 4₁AV equipment installed in ...
1₁What is A in a group that has a connection interlocking relationship?
To know if the V device is connected, see Fig. 5.
The initialization sequence will be executed. So early
When the activation sequence is executed, the central controller 6
Next each room 4 ₁For AV equipment of ...
Send a signal for. In this case, for example, TV receiver, VTR
Pre-configured for each device such as device, CD device, etc.
The addresses from the beginning to the end are called sequentially.
It For example, room 1₂AV equipment installed in₂Is T
If it is V equipment, it is accessed when searching for TV equipment.
Then, the ACK signal is sent to the AV via the centralized controller 6.
Equipment 1₁To the AV device by receiving this ACK signal
1₂AV equipment 1₂Is registered as a TV receiver.
In this way, the type of AV equipment such as video equipment, CD equipment, etc.
The search is performed every time. In the figure, AV device 1₂Is
ACK signal is transmitted when searching for video equipment, and A
V equipment 1₃Transmits ACK signal when searching for CD device
is doing.

When the initialization sequence is executed as described above, the centralized controller 6 can register the presence of AV equipment in another room in the same group by relaying the return of the ACK signal. Now, when a certain AV device tries to know the state of another AV device in the group having the connection interlocking relationship (for example, if it is a video device or not), the sequences shown in FIGS. 6 and 7 are executed. It

That is, the AV equipment 1 ₁ in the room 4 ₁ is now in the room 4 _1.
If you tried to find the _second AV device 1 ₂ of the state, first AV device 1 ₁ room 4 ₁ transmits room 4 ₂ of the AV apparatus 1 ₂ in a state routine setting command for reading to a centralized controller 6. In response to this command, the centralized controller 6 returns an ACK signal to the AV device 1 ₁ . This ACK
Signal by, AV equipment 1 ₁ recognizes that the setting routine is completed, and transmits the data read command starts reading the data.

Here, the centralized controller 6 is the AV device 1 ₂
Since the state of is not always managed, A
The status of V-equipment 1 ₂ cannot be returned. Therefore central controller 6 transmits a read command to the AV device 1 _2. The transmission from the AV equipment 1 ₂ between until state data is returned, continues to transmit a high collision data priority than the read command of the AV device 1 ₁ with respect to the AV device 1 ₁ side of the AV device 1 ₁ Keep on colliding with.
In the case of DDB, the master address, which has the highest priority, is "000 _(H) ", but since this address is not generally used, it causes collision loss for any signal transmitted by AV equipment. be able to. Therefore, the master address "000 _(H) " is used as the collision data.
To use. Since collision defeated a previous process into the sequence when no partner device (Fig. 7), the pre-crash AV equipment 1 ₁ even after repeating the AV device 1 ₂ is not in the same system (equipment removal, etc.) I do not judge.

When the AV device 1 ₂ transmits the status data, the centralized controller 6 stops the transmission of the collision data and receives the read command from the AV device 1 ₂ .
Transfers the state data of the AV device 1 ₂ to the AV device 1 _1, and ends the read routine.

[0019]

According to the invention of claim 1, in the control system of the AV equipment in which the terminator is connected to both ends of the bus and the DDB compatible AV equipment for interlocking control is sequentially subordinately connected by the bus, each room in the house is provided. An AV controller in a room having a connection interlocking relationship is provided based on a connection interlocking relationship preset between the rooms, which is provided with a centralized controller star-connecting a DDB bus previously wired to the provided DDB outlet. Since the control signal is transmitted via the centralized controller, even if the wiring system is such that the AV equipment is connected by the pre-wired bus, each room can be freely combined to provide the centralized controller for the AV equipment provided in each room. There is an effect that interlocking control can be performed via.

According to a second aspect of the present invention, in the first aspect of the invention, when the initialization sequence of the AV device is executed, the centralized controller responds to the initialization sequence in place of another AV device and executes the initialization sequence. Since the initialization registration is performed by the AV device that performs the initialization, the presence of the AV device installed in another room can be registered in the AV device that executes the initialization sequence through the centralized controller.

According to the invention of claim 3, in the invention of claim 1, when a routine setting command for reading the status of another AV device is received from the AV device, the other AV devices to be read are concentrated. In addition to transmitting the read command from the controller, the transmission collision data is transmitted to the AV device on the reading side until the state data is sent from another AV device, and is read when the state data is received. Since the central controller transmits the state data to the reading side AV device in response to the reading command of the side AV device, when reading out the state of the AV device installed in another room, the AV device in another room The data on the status of the AV equipment installed in another room is read via the centralized controller without imposing a burden on the AV equipment on the reading side. There is an effect that can be transmitted to the AV equipment.

[Brief description of drawings]

FIG. 1 is a system configuration diagram of an embodiment of the present invention.

FIG. 2 is a configuration diagram of a centralized controller of the same system.

FIG. 3 is an explanatory diagram of a connection setting unit provided in the centralized controller of the above.

FIG. 4 is an explanatory diagram of an overall control sequence of the above.

FIG. 5 is an explanatory diagram of an initialization sequence of the above.

FIG. 6 is an explanatory diagram of a state reading sequence of the above.

FIG. 7 is an explanatory diagram of a case when there is no other device in the above.

FIG. 8 is a system configuration diagram of a conventional example.

[Explanation of symbols]

1 ₁ ... AV equipment 2 ₁ ... Bus 2 ₁ '... Bus 4 ₁ ... Room 5 ₁ ... DBB outlet 6 Centralized controller

Claims (3)

[Claims] 1. A control system for an AV device in which terminal devices are connected to both ends of a bus to sequentially connect DDB-compatible AV devices for interlocking control by a bus to a DDB outlet provided in each room of a house. Pre-wired DDB
A centralized controller with a star-connected bus is provided, and based on the interlocking relationship between the rooms preset by the centralized controller, the control signals of the AV devices in the rooms with the interlocking relationship are transmitted via the centralized controller. A control system for AV equipment. 2. An AV device initialization sequence is executed,
2. The AV device control system according to claim 1, wherein the centralized controller responds to the initialization sequence in place of another AV device and performs initialization registration in the AV device that executes the initialization sequence. 3. When a routine setting command for reading the status of another AV device is received from the AV device, the read command is transmitted from the centralized controller to the other AV device to be read, and the reading side AV
The transmission collision data is transmitted to the device until the status data is sent from another AV device, and when the status data is received, the centralized controller responds to the read command of the reading AV device. 2. The AV device control system according to claim 1, wherein the status data is transmitted to the reading AV device.