JPS62129889A - Electronic musical apparatus network system - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of the Invention 1] The present invention relates to a network system for electronic devices, and particularly to a system that uses a controller to automatically recognize, register, set, etc. a slave unit connected to a network. The present invention relates to an electronic musical instrument network system that allows any type of device to be connected to a network.

[Background of the Invention] Conventionally, in order to configure an electronic musical instrument network system by connecting a plurality of electronic musical instruments to each other, the so-called M 7 [)
l (Musical l n5trHent
[ ) 1g1talinterrace) was known. This MIDI interface is a common standard for transmitting automatic performance data, etc., and makes it possible to transmit performance data such as key codes from one instrument to another among multiple instruments distributed on a network. It was something to do.

However, in conventional systems that use MIDI, in order to connect devices other than musical instruments such as computers, printers, and disk drives to the network, special control software and this software must be executed for each device. This has the disadvantage that it requires a computer system to do so.

[Objective and Summary of the Invention] The object of the present invention is to solve the problems of the conventional type described above,
To enable a user to incorporate and use a completely new device into the network by simply connecting a physical cable in an electronic musical instrument network system.

The present invention provides an electronic musical instrument network system including: a controller having an expanded device memory and a processor;
A network bus connected to the controller, and a number or a plurality of slave units connected to the network bus each storing a control program necessary for controlling itself are provided, and the slave unit can control the slave units. By loading a necessary control program into the expansion device memory of the controller and executing the control program within the controller, the controller automatically recognizes the existence of the slave device,
A feature of this system is that information can be exchanged between each handset and the controller via a network bus.

[Explanation of Examples] Hereinafter, the present invention will be explained in detail with reference to the drawings.

FIG. 1 shows a schematic configuration of an electronic musical instrument network system according to an embodiment of the present invention. The system in the figure includes a controller 1 that also functions as an electronic musical instrument, another electronic musical instrument 2, a floppy disk 3, a printer 4, and a network bus 5 that connects these controller 1, electronic musical instrument 2, floppy disk 3, printer 4, etc. to each other. Equipped with. The controller 1 includes a processor (hereinafter referred to as CPU) 6, a board-only memory (hereinafter referred to as RO) for the basic system.
7. Random access memory (hereinafter referred to as RAM) for the basic system 8. RAM for expansion devices
9-1. 9-2. 9-3. ..., sound source circuit 10
, an output amplifier 11, a speaker 12, a panel interface 13, a console panel 14, a bus interface 15, a control interface 16, an instruction panel 17, a start information input section 18, and an internal bus 19 connecting these circuits.

In the circuit shown in FIG. 1, the controller 1 also serves as, for example, an electronic musical instrument, and when a performance is performed by operating a console panel 14 or the like, the performance data is transmitted via the panel interface 13 to the basic RAM 8 and the sound source circuit 10.
etc. are input. Then, a predetermined audio signal is generated by the sound source circuit 10, amplified by the output amplifier 11, and outputted from the speaker 12. At this time, the performance data input from the console panel 14 is sent to the CPU as necessary.
After being subjected to various processing such as waveform manipulation by 6, the signal is input to the sound source circuit 10. In addition, CPU6 is R for the basic system.
Operating system (O8) stored in OM7
Processing operations are performed based on the above. In addition, R for the basic system
AM8 is used for temporary storage of performance data and various other work areas.

Next, referring to FIG. 2, the controller 1 in FIG.
The procedure for transmitting and receiving information between the computer and each device connected by the network bus 5 will be explained. In the system according to the present invention, various devices can be arbitrarily connected to the network bus 5, and the controller 1 automatically recognizes the existence of these devices and exchanges information. For this reason, 70 grams of control stored in the printer 4 is transmitted from one slave device, for example, the printer 4 in FIG. 1, to the controller 1 via the network bus 5. This control program is stored in, for example, the expansion device RAM 9-1 via the bus interface 15 and the internal bus 19 in the controller 1. Then, in the controller 1, the CPtJ6 executes the control program stored in the expansion device RAM 9-1, automatically makes the controller 1 recognize the existence of the printer 4, and registers and registers the slave device, that is, the printer 4. Various control information settings, etc. are performed. In addition, if initial settings such as control parameters for the slave device are required, the CPU 6
displays on the instruction panel 17 via the control interface 16 that a predetermined instruction is required, and the operator can input desired setting information from the same instruction panel 17 in response. This manual setting is also used, for example, when instructing device assignment etc. when there are multiple slave devices of the same type. The start information section 18 also stores initial setting data necessary for operation with a specific system configuration and supplies it to the controller, and for example, initial registration when only the same slave device is always connected. This makes it possible to omit settings, settings, etc. This type of controller operation allows users to incorporate completely new devices into the network and exchange complete information between devices in any system configuration by simply physically connecting the controller and each slave device using cables. be able to. This makes it possible to perform various functions, such as storing performance data from a certain electronic musical instrument on a floppy disk, or printing musical scores corresponding to the performance data using a printer.

Next, with reference to FIG. 2, operations for exchanging information in the above-mentioned controller, ie, the master unit, and each expansion device, ie, slave unit will be explained.

The processing shown in the flowchart on the slave device side is executed when the slave device is powered on or by manual operation of the controller of the slave device. That is, for example, when a handset is powered on, it is determined whether or not it is possible to send data to the network.For example, if a handset is currently transmitting, it is not possible to send data, so it waits until the transmission is finished, and then transmits. When this becomes possible, a registration request signal is sent to the base unit. When the base unit receives a registration request from the slave unit, it makes a transmission request to the slave unit, and the slave unit responds to this by transmitting an identification number such as an address of the slave unit, that is, an ID, and a control program. This 10 and the control program are loaded into the expansion device memory on the base unit side. At this time, the new side checks whether there is a reception error, and if there is a reception error, an error is displayed and registration of the child device is canceled. If there is no reception error, the loaded slave device control program is executed to set predetermined parameters and perform other registration operations. The slave device side receives various instruction information from the parent device in response to the execution of the control program on the parent device, stores it in a predetermined memory, and completes the setting. By the above-described registration operation, a state is established in which information can be exchanged between the master unit and the slave unit, and thereafter performance data and various other information are transmitted via the network bus.

[Effects of the Invention] As described above, according to the present invention, users can incorporate and use various new devices into a network simply by physically connecting cables, and can use any configuration including electronic musical instruments. The system can be easily realized. Further, since special interface software and a processor for executing this software are not required each time a new device is connected, a network system with a simplified system configuration and high expandability and flexibility can be realized.

[Brief explanation of drawings]

FIG. 1 is a block circuit diagram schematically showing an electronic musical instrument network system according to an embodiment of the present invention, and FIG. 2 is a flowchart showing the operation of the system of FIG. 1. 1: Controller, 2: Electronic musical instrument, 3: Floppy disk, 4: Printer, 5: Network bus, 6: Processor, 7: ROM for basic system, 8: RAM for basic system. 9-1. 9-2. 9-3.・R for bow expansion device
AM110: Sound source circuit, 11: Output amplifier, 12: Speaker, 13: Panel interface, 14: Console panel, 15: Bus interface, 16: Control interface, 17: Instruction panel, 18 NIST information section, 19: Internal bus .

Claims (1)

[Claims] A controller having at least an expansion device memory and a processor, a network bus connected to the controller, and one or more slave devices connected to the network bus each storing a control program necessary for controlling itself. and loading a control program from the slave unit into the expansion device memory of the controller and executing the control program within the controller to control the exchange of information between each slave unit and the controller. Features an electronic musical instrument network system.