JP3024031B2 - Control device for system equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control device for a system unit of a head unit and a plurality of peripheral units, and more particularly to a system unit suitable for accurately controlling an operation command of a connection unit outside a prescribed connection. Related to a control device.

[0002]

2. Description of the Related Art Conventionally, in a system device in which a head unit is connected to a plurality of peripheral units, a control device for operating the peripheral unit selected by a control signal from the head unit generally has a built-in head unit. A microcomputer (hereinafter simply referred to as a microcomputer) and operation keys for giving operation commands to the built-in microcomputer, and a bus communication system in which the built-in microcomputer is connected to a microcomputer provided in the peripheral unit by a data bus line. Was controlled by the system.

For example, there has been a systemized audio device constructed by connecting a plurality of source devices such as a cassette tape recorder, a CD player and a CD changer to a head unit having a main amplifier and a speaker system.

In this systemized audio equipment, a microcomputer built in a head unit and a microcomputer built in a peripheral unit such as a CD player are connected to a data bus line, and a desired operation is performed by operating an operation key of the microcomputer built in the head unit.
A CD player was selected, the output audio signal of the selected CD player was supplied to the head unit via a signal line, and the source output signal of the CD player could be reproduced from the speaker of the head unit.

As described above, the control signal from the head unit is transferred to each peripheral unit to set an arbitrary desired peripheral unit, and the operation of the set peripheral unit is arbitrarily controlled.

[0006]

However, in the above-described conventional system device control apparatus, in a system control, for example, when a plurality of peripheral units of the same model are connected to the head unit at the same time, the control from the head unit is not performed. According to the control signal for executing the operation command, the plurality of peripheral units of the same model start operating simultaneously, and the source output signals from the plurality of peripheral units that have started this operation are simultaneously supplied to the head unit. There is a problem that an abnormal sound is generated in the output from the speaker.

When such an abnormal state occurs, the control system of the conventional system equipment employs an operation system for stopping the entire system system. For example, even if there are available peripheral units, the entire system system is controlled. There is a disadvantage that the unit stops and the usable unit cannot be used.

That is, for example, when the same peripheral unit is systematized and connected, the operation switch provided on each of the same peripheral units is operated to set the operable unit and the inoperable unit, thereby setting the above-mentioned units. Accurate operation can be enabled by system operation.

However, whether or not the correct operation of the operation switch is set is processed based on the memory of the user, so that when the memory of the user is insufficient, the above-described problem often occurs. However, there is a drawback that the user cannot quickly and clearly recognize the cause of the above-mentioned problem.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and has as its object to solve the drawbacks of the prior art, and to display an error display or a warning sound when a malfunction occurs in the operation of system equipment. An object of the present invention is to provide a control device for a system device in which a malfunction is generated by a speaker to warn a user of trouble information, and at the same time, the operation of only the unit in which the trouble has occurred is stopped, thereby stopping the operation of the entire system.

[0011]

A control device for a system device according to the present invention connects a plurality of peripheral units to a head unit in parallel, selects a peripheral unit according to a control signal from the head unit, and selects the selected peripheral unit. In a control device of a system device for controlling the operation of the unit, a connection confirmation means provided in the head unit for confirming connection information of a plurality of peripheral units connected to the head unit, and a predetermined prescribed connection due to a connection setting error or the like. Memory means provided in a head unit for storing external invalid connection information, display means provided in the head unit for displaying an error when an operation command is issued to the invalid connection unit, and the invalid connection unit Warning sound generating means provided in the head unit for the operation command to the Those having an operation canceling means for canceling the operation command invalid connection unit relative to create command.

[0012]

FIG. 1 is a functional block diagram showing the operational configuration of the present invention. The operation of the present invention will be described with reference to the functional block diagram of FIG. According to the present invention, in a system device constructed by connecting a plurality of peripheral units to a head unit, a bus communication system is established by connecting a microcomputer built in the head unit and a microcomputer provided inside the peripheral unit to a data bus line. On the other hand, output signals from a plurality of peripheral units are supplied to the head unit via signal lines (connection means 1 of system equipment).

Control data for confirming connection information of a plurality of peripheral units is sent from the microcomputer built in the head unit connected in this way, and the head unit is connected with the connection information of the plurality of peripheral units by reply information from each of the peripheral units. Operable peripheral unit and inoperable peripheral unit can be confirmed by recognizing the connection (connection confirmation means 2).

By confirming the connection information of the peripheral unit, the head unit stores the invalid connection information outside the predetermined connection or invalid connection information due to a setting error of a setting switch or the like in the storage unit of the built-in microcomputer ( Memory means 3).

When the user operates the operation key to give an operation command to the stored invalid connection unit,
The microcomputer built in the head unit determines that the operation is impossible based on the invalid connection information stored in the storage unit, and displays an error for an operation error of an operation key, a setting error of a setting switch, etc. on a display unit provided in the head unit. At the same time, a warning sound is generated from a speaker provided in the head unit (warning sound generation means 5).

Further, in response to the operation command of the invalid connection unit, the microcomputer in the head unit invalidates only the operation command of the invalid connection unit, cancels the operation command, and issues a play command of the peripheral unit of the invalid connection. The operation is controlled not to be performed (operation canceling means 6).

As described above, an error display and a warning sound are generated for an operation command out of the prescribed connection or an operation command out of the setting for the peripheral unit, and a user is warned by a speaker output sound. The user can recognize the operation error by the error display.

Further, the operation control of the system equipment does not stop the operation command to the invalid connection unit and does not execute the operation command. The normal operation state in which the unit operates immediately can be maintained.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a control device for system equipment according to the present invention will be described with reference to FIGS. FIG. 1 is a functional block diagram showing an operational configuration of the present invention.
FIG. 3 is a block diagram of software, and FIG. 3 is a flowchart for explaining the operation.

In the block diagram of FIG. 2, reference numeral 11 denotes a first peripheral unit among a plurality of peripheral units connected to the head unit. The first peripheral unit 11 has a source unit 11a and a switching unit 11b inside. The source unit 11a and the switching unit 11b are controlled by a built-in microcomputer 11c.

Reference numeral 12 denotes a second peripheral unit.
Similarly, the peripheral unit 12 has a source unit 12a switching unit 12b and a microcomputer 12c inside similarly to the above, and 13 is a third peripheral unit, and the third peripheral unit 13 also internally switches the source unit 13a similarly to the above. It has a unit 13b and a microcomputer 13c, and performs the same internal operation as the first peripheral unit 11.

Reference numeral 14 denotes a signal line.
Are the first, second, and third peripheral units 11, 12, 13 as shown in the figure.
(Hereinafter simply referred to as units 11, 12, 13) switching units 11b, 12
b, 13b and the signal input terminal of the head unit to connect the output signal to unit 1.
Supplied to the head unit from 1,12,13.

Reference numeral 15 denotes a data bus line. The data bus line 15 is connected to the microcomputers 11c, 12c, 13 of the units 11, 12, and 13.
By connecting c to a microcomputer built in the head unit, it is possible to execute various controls by the bus communication method between the head unit and the units 11, 12, and 13.

Reference numeral 16 denotes a head unit. The head unit 16 has an audio circuit 17 connected to the signal line 14.
A speaker 18 to which an output signal of the audio circuit 17 is supplied, a microcomputer 19 that controls the audio circuit 17, and a display unit 20 that is supplied with display data from the microcomputer 19 and performs display. And an operation key 21 for sending a control operation command to the microcomputer 19.

As described above, the microcomputers 11c, 12c, 13c, and 19 basically comprise a CPU, a ROM, a RAM, and input and output ports (not shown). The ROM has a program for controlling the CPU. In accordance with this program, the CPU fetches external data required from the data bus line connected to the input port or the operation keys 21, or sends / receives data to / from the RAM while performing calculations. After performing the processing, the processing data can be output from the output port to each circuit section or the data bus line as needed to perform various controls.

The control device of the system device thus configured includes the peripheral units 11, 12,
13 is, for example, a cassette tape recorder or a CD player having a music source, a CD changer, or the like, and the head unit 16 is selected from the plurality of peripheral units 11, 12, and 13,
For example, the reproduction operation of the CD player 12 is controlled by selecting the CD player 12, the reproduction source signal from the CD player 12 is taken in, and reproduced and output from the speaker 18 via the audio circuit 17.

Now, the first peripheral unit 11 connected to the head unit 16 is a CD player, the second peripheral unit 12 is a CD changer, the third peripheral unit 13 is another CD changer, One head unit 16
Despite the connection between the CD player 11 and the two CD changers 12 and 13, for example, the prescribed connection of the head unit 16 is defined only for one CD player 11 and one CD changer 12. The control operation of the system device in such a case will be described with reference to the flowchart of FIG.

As described above, when the prescribed connection of the head unit 16 is prescribed as the connection between one CD player 11 and one CD changer 12 as described above (step S1), When a CD player 11, a CD changer 12 and another CD changer 13 are connected to the microcomputer (step S2), the microcomputer 19 of the head unit 16 connects to the microcomputers 11c and 12c of the units 11, 12, and 13 via the data bus line 15.
Sends a connection confirmation request to c and 13c.

The microcomputers 11c, 12c, and 13c of the units 11, 12, and 13
Receives the connection confirmation request from the head unit 16,
It returns to the head unit 16 whether the connection model information of the plurality of peripheral units is operable or inoperable, and the microcomputer 19 of the head unit 16 can recognize the operable state of the connection model (step S3).

As described above, by checking the connection state of the units 11, 12, and 13 connected to the head unit 16, the connected models are one CD player 11 and two CD changers 1
Since the head unit 16 can control only one CD changer 12 due to the specified connection, the connected CD changer 13 is invalidated and invalid connection information outside the specified connection is stored in the microcomputer 19. (Step S4).

When the user operates the system devices connected in this way to operate the peripheral units of the music source to listen to music, the operation is performed by selecting the CD changer 12 from the operation keys 21 provided on the head unit 16. When the operation is performed (step S5), the microcomputer 19 determines whether the connection of the set CD changer 12 is a specified connection, and if the connection of the CD changer 12 is the specified connection, the microcomputer 19 sets the set CD changer 12 as described above. (Step S7), and the CD changer 12 starts operating (step S7).
8).

As described above, the CD changer 12 performs the operation instructed by the control data from the head unit 16, and the output signal of the reproduction music of the compact disk desired by the user is output via the signal line 14 to the head unit 16. And the reproduced music can be heard from the speaker 18 of the head unit 16.

On the other hand, when the user operates the CD changer 13 by selecting it from the head unit 16 (step S).
5) The microcomputer 19 determines whether the connection of the CD changer 13 set to be operated is a specified connection based on the invalid connection information stored in the memory, and the connection of the CD changer 13 is not a specified connection which is not a specified connection. In this case, the microcomputer 19 displays an error on the display unit 20 to inform the user that the connection is out of the specified range.
At the same time, a warning sound is generated from the speaker 18 via the audio circuit 17 (step S9).

That is, even if the user is obsessed with the operation of the system equipment and the operation of the operation keys 21 and neglects to see the error display displayed on the display unit 20 of the head unit 16, the speaker 18 can be used. Is generated at the same time, and the user can be informed of the error information. Therefore, the user can also recognize the inoperability of the system device by hearing the warning sound.

As described above, an error display / warning sound is generated, and the operation command to the invalid-connected CD changer 13 is automatically canceled (step S10). That is, without stopping the entire control system of the system equipment, only the control operation command of the CD changer 13 which is invalidly connected is released, and the operation command and operation control for other operable models can be continuously executed.

As described above, the number of the peripheral units 11, 1 that is equal to or more than the specified number of connected units that can be controlled by the head unit 16
2 and 13 are described. As another application example, as the controllable peripheral units 11, 12, and 13 within the specified number of connected units, the head unit 16 has one CD player 11 and two The case where the specified connection is set to be controllable up to the CD changers 12 and 13 will be described.

The two CD changers 12, 13 are shown in FIG.
The mode setting switches 12d and 13d are attached like
By setting the mode setting switches 12d and 13d, the CD changer 12 or the CD changer 13 can be set separately for the CD changer A or B.

For example, connection confirmation data from the microcomputer 19 of the head unit 16 is sent to the CD changers 12, 13, and the mode setting switch 12d of the CD changer 12 is set to "O".
When the switch is set to "N", the CD changer 12 is determined as the CD changer A. When the mode setting switch 12d is set to "OFF", the CD changer 12 is set.
12 is determined to be CD changer B.

Similarly, when the mode setting switch 13d of the CD changer 13 is set to "ON", the head unit 16 determines that the connected CD changer 13 is the CD changer A, and sets the mode setting switch 13d to "OFF". "Is set to CD changer 13 is CD changer B
Is determined.

As described above, the head unit 16 can connect the two CD changers 12 and 13 by the switching setting of the mode setting switches 12d and 13d of the CD changers 12 and 13.
It is possible to confirm the connection state by distinguishing the CD changers A and B.

Now, for example, if the user changes the CD changer 12,1
When the system equipment is operated as described above with both the mode setting switches 12d and 13d of the microcomputers 12c and 13c being set to "ON", the head unit 16 is connected to the units 11, 12, and 13 in the flowchart of FIG. When the connection information is confirmed (step S3), the CD player is returned to the head unit 16 by returning the connection information from the units 11, 12, and 13.
The connection information that 11 and two CD changers A are connected is obtained.

That is, although the two CD changers 12 and 13 with the specified number of connected units must be originally CD changers 12 and 13 that can be distinguished as CD changers A and B, the user's mode setting switch As described above, the microcomputer 19 of the head unit 16 determines that the same two CD changers A are connected due to a setting error of 12d and 13d. The connection information is stored in the storage unit of the microcomputer 19 (step S4).

As described above, when the user operates the operation command of the CD changer A in the connection setting error state (step
S5) The microcomputer 19 determines that the operation command of the CD changer A is invalid with respect to the CD changer A to which the operation instruction is issued, based on the invalid connection information stored in the memory (step S6).
As described above, an error is displayed on the display unit 20 and the speaker 18 is displayed.
(Step S9) to warn the user of an error.

Further, the operation command to the CD changers 12, 13 as the CD changer A is released (step S1).
0), only the operation control for the operation commands of the CD changers 12 and 13 is stopped to maintain the operation of the entire system.

As described above, the control device of the system device uses the specified connection information for the plurality of peripheral units 11, 12, and 13 connected to the head unit 16 to determine the invalid connection information on the number of connected head units 16 and the connection operation enabled. unit
It is possible to automatically check the invalid connection information and the like that cannot be commanded to operate in the state of 11, 12 and 13 that are clearly distinguished in the internal storage unit.

In addition, the invalid connection information is displayed as an error /
The user can be notified by the generation of a warning sound, etc., and only the operation command for the peripheral unit that is invalidly connected can be released and the operation control can be stopped. Problems such as stopping the entire system system by operating the system equipment according to the operation command of the invalid connection peripheral unit can be prevented beforehand.

[0047]

As described above, the control device for a system device according to the present invention, when a malfunction occurs in response to an operation command to a peripheral unit connected to the head unit 16 that is not specified, causes the peripheral device outside the specified connection to fail. Since the operation command of only the unit can be released and the other normally connected peripheral units can maintain the normal operation, there is an effect that a trouble such as unnecessary stoppage of the entire system can be avoided.

Further, even when the same peripheral unit exists due to a setting error of the mode setting switches 12d and 13d of a plurality of peripheral units connected to the head unit 16, an error display / error is displayed in response to an operation command to the same peripheral unit. By issuing a warning sound and canceling the operation command, it is possible to prevent such a problem that two or more of the same peripheral units operate simultaneously.

When an operation command is issued to the peripheral unit with an invalid connection to the head unit 16, an error is displayed or a warning sound is issued to the peripheral unit with the invalid connection, so that the user can use the peripheral unit with the error connection. There is also an effect that the unit can be clearly known, and a defect in the system can be easily found.

Further, the function of checking the connection information of the system equipment and storing the invalid connection information is provided by the built-in head unit 16 and the microcomputers 19, 11c, 1 of the peripheral units 11, 12, and 13.
It depends heavily on 2c and 13c software, has the effect of being able to upgrade its functions without increasing costs, and has excellent features such as easy implementation.

[Brief description of the drawings]

FIG. 1 is a functional block diagram showing an operational configuration of a control device of a system device according to the present invention.

FIG. 2 is a block diagram showing a hardware configuration of the present invention.

FIG. 3 is a flowchart illustrating the operation of the present invention.

[Explanation of symbols]

 11 First peripheral unit 11a Signal source unit 11b Switching unit 11c Microcomputer (microcomputer) 12 Second peripheral unit 12d Mode setting switch 13 Third peripheral unit 14 Signal line 15 Data bus line 16 Head unit 17 Audio circuit 18 Speaker 19 Microcomputer 20 Display 21 Operation keys

Claims (1)

(57) [Claims] 1. A control device of a system device for connecting a plurality of peripheral units to a head unit in parallel, selecting a peripheral unit by a control signal from the head unit, and controlling an operation of the selected peripheral unit. Connection confirmation means provided in the head unit for confirming connection information of a plurality of peripheral units connected to the head unit, and memory provided in the head unit for storing invalid connection information outside a predetermined prescribed connection due to a connection setting error or the like. Means for displaying an error when an operation command is issued to the invalid connection unit, and a warning sound generation means provided for the head unit in response to an operation command to the invalid connection unit. Release the invalid connection unit operation command in response to the invalid connection unit operation command. Controller of the system devices, characterized in that it comprises an operation releasing means.