JPS581400A - Speaker device - Google Patents

Abstract

PURPOSE:To improve the reliability of a device and to reduce its cost by providing wiring for connecting a power source panel, plural subordinate control boards, and speakers in series, and by putting desired speakers in operation selectively thrugh optional subordinate control boards. CONSTITUTION:An electric power source panel 1, subordinate control boards 2, 2..., and speakers 3, 3... are connected in series through an electric conductor 4. In this state, when the key switch 10 of a subordinate control board 2 at a command place for sound reinforcement is turned on or when microphone operation is carried out, respective speakers 3 and subordinate control boards 2 perform processing by CPUs 5 on the basis of programs stored in incroporated memories 6 to decide on priority levels, and an operation place selected by the subordinate control board 2 is judged to turn on the output cicuit of an internal speaker 9 through the input and output control part 7 of a corresponding speaker 3. In this device, a control circuit employs no contact, so the precision is improved to standardize the control circuits, thereby reducing the cost.

Description

[Detailed description of the invention] The present invention relates to a public address system.

Conventionally, public address systems used on ships, buildings, etc.
As shown in the block diagram, a power supply section 1, an amplifier section 2. Operation unit 1. Broadcast selection, input/output switching, consisting of contact relays,
a main device g consisting of a control unit 4 having a priority control function;
Sub-pipe side tg, g...Microphone 1 for remote control
, 7..., speakers 8, 8..., G group and QB group G arranged in each part of the main device 5°.
C group... multiple speakers #, #..., microphone 7,! ... and control panels 6.6... installed at multiple locations are connected to each other by cable lines 9.9....

However, in such a loudspeaker, when performing amplification, the selection switches on the main device 5 or the sub-pipe side panels 6, 6, etc. are used to select the speaker groups GA, Q, etc.
B, GC, etc. are selected and the control section 4 of the main device 5 performs collective control to turn on the group circuits to be broadcast.

For example, when there is an operational change on a ship, a change in tenant in a building, etc., it is difficult to easily change specifications such as changing the operating group of the speakers, and
The main body is large.

It is difficult to secure space for equipment, and furthermore, the control circuit is only located within the main device.

9. Separate wiring for each speaker group. #
The present invention has been proposed in view of these circumstances, and the present invention has been proposed in view of the above circumstances. Eliminates equipment and increases equipment reliability.

The purpose of this system is to provide a public address system that reduces wire length and man-hours, and includes a power panel, multiple sub-pipe side panels with built-in microcontrollers, multiple speakers with built-in microcomputers, and the power panel, sub-pipe side panels, and The present invention is characterized in that it is equipped with wiring that connects speakers in series, and that a desired speaker can be selectively activated by operating any of the sub-pipe side panels.

An embodiment of the present invention will be described with reference to the drawings.

1s1 is a block diagram showing the circuit configuration, FIG. 1 is an enlarged view of the sub pipe side panel 1 or speaker 1 in FIG. 2, and FIG. 4 is a flowchart of FIG. 3.

In the above figure, l is the power supply panel, 2. z...(Multiple sub-pipe side panels (operation panels) with built-in semi-microcomputers.

J, 1... are multiple speakers with built-in microcontrollers.

Power supply panel l, sub-control panel, 2..., speaker 1゜1
... are connected in series with electric wire 6. 5 is a central processing unit CI'U, 1 is a memory that stores the address of each speaker 1, selection priority, etc. as a program, r is an input/output control paper 1 is a buffer, 9 is an internal speaker, and in the case of a secondary pipe side panel 1 includes a key switch (power switch) I (l), and 11 is a terminal section.

In such a device, when the power switch (key switch 10) of the sub-pipe side panel 1 at the command location for amplification is turned on or the microphone is operated, the speaker j and the sub-pipe are first turned on, respectively, as shown in the flowchart of FIG. Each of the side panels 1 is processed by a central processing unit 5 based on a program stored in a built-in memory 6, and the priority order is determined.
Next, the selected operating location is determined on the sub pipe side panel 1, and the internal speaker output circuit can be turned on using the input/output control section r of the corresponding speaker 3.1...K.

According to such a device, the following effects can be achieved.

(11) It becomes possible to create and change a control program based on the speaker table.

(2) By creating additional programs, it is possible to expand the scheduled automatic broadcast system, etc.

(3) Since it uses a multiplex communication method, it is possible to connect the electric wires in series, thereby reducing the length of the electric wires and the number of man-hours.

(4) Since the control circuit is non-contact, reliability is high.

(5) Cost reduction can be achieved by standardizing the control circuit.

(6) Since the main device is not required, layout design becomes easier, and the entire device becomes smaller and lighter.

In short, according to the present invention, a power supply panel, a plurality of sub tube side panels with a built-in microcomputer, a plurality of speakers with a built-in microcomputer,
A public address system that is equipped with wiring that connects the power supply panel, sub-pipe side panel, and speakers in series, and that increases reliability and reduces costs by selectively operating the desired speaker by operating any of the sub-pipe side panels. Because you get.

The present invention is extremely useful in business.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a known public address system, and FIG. 2 is a block diagram showing an embodiment of the present invention. Figure 3 is an enlarged view of the sub-pipe side panel or speaker in Figure 2;
The figure is a flowchart of FIG. I...Power supply panel, 2...Sub-tube side panel, 1...Speaker, 4...Electric wire, 5...Central processing unit, 6...
memory. 7... Human output control s, 8... Buffer, 9... Internal speaker, XO... Key switch, ll... Terminal section.

Claims (1)

[Claims] A power supply panel, a plurality of sub-pipe side panels of the microcomputer inner panel, a plurality of speakers with built-in microcomputers, and wiring for connecting the power panel, sub-pipe side panels, and speakers in series, and any of the sub-pipe side needles. A public address system characterized in that a desired speaker is selectively activated by operation.