JP2002051389A - Circuit for remote control - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a circuit at a low cost, in which an exclusive circuit is not particularly required and which is used for remote control. SOLUTION: In the circuit for remote control, in which a circuit pattern of (m) rows × (n) columns is arrayed on a circuit board in a matrix form and LEDs, switches or the like are disposed at the intersections of the rows and columns of the circuit pattern, the switches 3 for discriminating remote control are arranged at one or a plurality of positions of the intersections in the circuit pattern 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote control circuit in which m rows.times.n columns of circuit patterns are arranged in a matrix on a circuit board.

[0002]

2. Description of the Related Art A conventional remote control (hereinafter abbreviated as "remote control") circuit used to remotely control an arbitrary device or to set the operation of the device will be described with reference to FIGS. FIG. 2 is a simplified diagram of a conventional system using a remote control circuit. FIG. 3 is a structural diagram of the remote control circuit of FIG.

In FIG. 2, an arbitrary device, for example, an rubbing machine 11, includes an actuator (not shown) provided in the device 11, a main board 12 for operating or controlling this actuator, and A remote controller 14 is connected to the main board 12 via a cable 13 and can remotely control an actuator by instructing and setting the main board 12.

In FIG. 3, inside a remote controller 14,
A circuit board 15 for remotely controlling the device 11 is provided. On this circuit board 15, circuit patterns 16 of m rows × n columns are provided in a matrix. By arranging an LED or a switch 17 on the intersection of the row and the column, remote control of the device 11 is enabled.

For example, in a row, m = 5 row patterns A to E
Are provided, and n = 6 column patterns a to f are provided in the column. A switch 17 is provided at the intersection of the row patterns A to E and the column patterns a to f, and the device 11 is remotely operated by turning on / off the switch 17.

[0006] Further, when there are devices 11 remotely controlled by the remote controller 14 and several kinds of articles having different specifications in the remote controller 14, it is possible to determine which device 11 an arbitrary remote controller 14 corresponds to. If it is difficult, a power source 18 for outputting a voltage of an arbitrary height to the main
And the remote controller 14 is controlled by the voltage value of the power supply 18.
Can be determined.

In the determination based on this voltage value, power is supplied from the main board 12 to the remote controller 14, an arbitrary voltage is generated from the power source in the remote controller 14, and this voltage value is transmitted to the main board 12. May be output.

[0008]

As described above, when determining a remote controller, the main board determines the type of the remote controller based on a difference in voltage value output from the remote controller. In this case, a voltage supply line is required in a cable connecting the main board and the remote controller, which causes an increase in cost.

Further, when noise causes a voltage supply line to be long, for example, noise tends to be applied to this line, so that the type of the remote controller cannot be determined, and the main board may erroneously recognize the remote controller.

[0010]

Therefore, according to the present invention, there is provided a remote control circuit characterized in that a switch for remote control determination is arranged at one or more intersections of a circuit pattern. I do.

[0011]

A switch is provided on an unused intersection of circuit patterns arranged in a matrix. Alternatively, a circuit pattern of one or more rows (or columns) is added, and a switch section is provided at the intersection of the added circuit patterns.

By setting this switch on / off and using it for the identification code of various remote controllers, the remote controller can be easily identified.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a remote control circuit according to the present invention will be described with reference to FIG. FIG. 1 is a structural diagram of a remote control circuit according to the present invention.

In FIG. 1, a remote control circuit 1 has m rows A to A in a matrix like a conventional remote control circuit.
Each circuit pattern 2 of E × n columns a to f is provided. An LED, a switch 3, or the like is disposed at the intersection of the row pattern A to E and the column pattern a to the circuit pattern 2.

Then, among the switches 3 arranged at these intersections, unused switches or circuit patterns F of one or more rows (or columns) are added, and the added row pattern is added. Switches 3a to 3f provided at the intersections between F and the row patterns a to f are used for discriminating codes of various remote controllers.

That is, the switches 3a to 3f assigned for the remote control discrimination code are turned on or off, respectively, and the main board can discriminate the type of the remote control by the combination of on / off.

[0017]

According to the present invention, there is no need to increase the number of remote control cables, and it is sufficient to increase the number of matrices as needed, and an inexpensive remote control circuit that does not require a special circuit is provided. can do.

[0018]

[Brief description of the drawings]

FIG. 1 is a structural diagram of a remote control circuit according to the present invention.

FIG. 2 is a simplified diagram of a conventional system using a remote control circuit.

FIG. 3 is a structural diagram of a remote control circuit shown in FIG. 2;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Remote-control circuit 2, 16 ... Circuit pattern 3, 3a-3f, 17 ... Switch 11 ... Abrasive machine 12 ... Main board 13 ... Cable 14 ... Remote-controller 15 ... Circuit board 18 ... Power supply part

Claims (1)

[Claims] 1. A matrix arrangement of m rows × n on a circuit board.
In a remote control circuit where circuit patterns in columns are arranged and LEDs, switches, and the like are arranged at intersections of rows and columns of the circuit patterns, remote control is performed at one or more intersections of the circuit patterns. A circuit for remote control, characterized in that a switch for discriminating is arranged.