JPH01130695A - Remote control system - Google Patents

Abstract

PURPOSE:To require no special interface only for a communication in a controlled equipment by making the format of a signal transmitted between a relay controller and plural controlled equipments the same as a transmission signal from a remote control transmitter. CONSTITUTION:The CPU 5 of the relay controller 3 decodes remote control signal data to form a new custom code and data corresponding to the data and transmits to a bus line 6a. Then, the newly formed custom code and the data code only have the different contents and the format thereof is the same as that of the remote control signal. Thereby, since a software and a hardware for decoding the remote control signal provided on the controlled equipment can be used as they are, the plural controlled equipments can be operated by one remote control transmitter without producing a remarkable cost up.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a remote control (hereinafter referred to as "remote control") system.

(CT4) Background Art In recent years, there are many household appliances that are controlled by dedicated remote control transmitters, such as television receivers, video tape recorders, compact TV players, and video disk players.

In particular, the above-mentioned video and audio equipment is called AV equipment, and if a certain amount of AM equipment is installed, there will be as many as 3 to 4 remote control transmitters, making it difficult to find a place to put the remote control transmitters and to operate them. It is also becoming more and more crowded. Therefore, one of the goals is to reduce the number of remote control transmitters 7 and to improve the operability of the remote control transmitter, and this makes it possible to program a plurality of controls using the remote control transmitter.
□Another method, as shown in Fig. 4, is to connect one remote control transmitter (11), a relay control device (21), and a path line (3) to connect nine plurality of controlled devices. There is a system that disconnects from the device (A) CB) (off...

In this system input, the signal transmitted from the remote control transmitter (1') is received by the relay control device (6), and the relay control device (2) receives the received signal according to a certain control. It converts the signal into a signal in a format completely different from the format of Control device (A) CB) (
C)... is such that the relay control device (2) receives and decodes the current operating state of each of the devices (A) 03) (C)... . Controlled device CA connected to the above path line (3))
03) (Q) is, for example, a television receiver, a video tape recorder, etc. These can operate as a standalone unit, but as shown in Figure 4, by connecting the relay control device (2f) and the pass line (31), , one remote control transmitter (11) enables control of each controlled device (3) CB) (C)...

f-) Problems to be Solved by the Invention By the way, communication via path twins is carried out using a fixed protocol, but in the system shown in FIG. Because each device is converted into a I had no choice.

The present invention aims to solve these drawbacks.

(b) Means for solving the problem In the remote control system of the present invention, the signals transmitted between the relay control device and the plurality of controlled devices are in the same format as the signals transmitted from the remote control transmitter. .

(E) Effect As described above, since the signal transmitted to the pass line is in the same format as the remote control signal, there is no need for a special interface dedicated to communication in the controlled device.

(F) Embodiments Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 3.

FIG. 1 shows a block diagram of a remote control system embodying the present invention, in which (1) is a remote control transmitter, and (3) is a remote control receiver that receives a remote control signal (2) from the remote control transmitter (1). (6a) is the lower 9 pass line, (61) is the upper pass line (7B)
(7b) and (70) respectively refer to controlled equipment such as television receivers, video tape recorders, and audio equipment;
1L) (8D) (80) ... is the controlled device (7)
a) Remote control receivers, (9k) (9'') (90), provided at (711), (70), etc., for receiving remote control signals from remote control transmitters dedicated to each device, respectively.
is a CPU such as a micro combinator provided in each of the controlled devices (7&), (7N), and (7G).

Next, the operation of the remote control system shown in FIG. 1 will be explained.

Now, when an operation key on the remote control transmitter is pressed, a remote control signal (2) corresponding to the function of the operation key is transmitted using infrared rays as a medium, and the signal component is modulated by a carrier of about several hundred KH2.

When this remote control signal is received by the remote control receiver (4) of the relay control device (3), the carrier is removed.
A signal as shown in FIG. 2 is obtained at point P.

The remote control signal shown in Fig. 2 starts with 115m
There is an aea leader code, followed by a custom code, custom code inversion, data, and data inversion signal PPM (Pulse Postt).

ion Module),
After this, while the same operation key of the 8°' transmitter (1) 0 is pressed down, a continuous code is repeatedly generated every 1G8maeo. In FIG. 2, the custom code is 37H (H represents a hexadecimal number) and the data is 10H.

The CPU (5) of the relay control device (3)
The custom code and data code were created with the intention of decoding the remote control signal data as shown in the figure, creating nine new custom codes and data corresponding to this data, and sending them to the pass line (6a). The format is the same as that of the remote control signal in Figure fJ2, only the code content is different.

In other words, the custom code of the remote control signal sent from the remote control transmitter (1) is for fully operating the relay control device (3), and the data following this custom code contains information about the controlled equipment to be operated by the remote control signal. 6. opυ (1) decodes the above data and converts it into a custom code for the controlled device to be operated. At the same time, it is converted into the ninth data that causes the controlled device to perform a predetermined operation, and the pass line (6a
).

Also, depending on the signal sent from the remote control transmitter (1), the signal sent from the relay control device (3) to the path line (6a) may be sent only once, or may be sent to multiple controlled devices. In order to operate the devices (7a), (71), and (70)' at the same time (for example, turn on the power at the same time), multiple signals with different custom codes may be sent out continuously as shown in Figure 3. . A signal as shown in FIG. 3 is sent from the relay control device (3) to the path line (6a), and the operation of the system shown in FIG. 1 will be further explained using the following case. The controlled equipment (7a) (713) (70)
For, custom code (38H), (,39H), (
If the CPU (9a) detects the custom code (38H), the OPU (9b) detects the custom code (39H), and the cptr (9C) detects the custom code (3AH)i, then Each device (7a)
(7b) C70) is its custom code (38H) (3
9H) We will lend you the money for the operation corresponding to the data following (3AH). In each of the controlled devices (7a), (7b), and (70), the lower 9 path lines (6a) are the remote control receivers (8a).
(81)) (80) as well as to the C3PU (9a) (91)) (90). )? The signals transmitted via r are also sent to the remote control receivers (8a) (8") (
80) and received (+itL, ta(i) has the same format, so it can be decoded by one CPU.

Also, when the controlled equipment (7a) (711) (70) transmits a signal informing the relay control device (3) of the current status, the signal is sent to the upstream bus (6b) in the same format as the remote control signal. If you send it to , the upstream path (61
1) is connected to the output side of the remote control receiver (4) of the relay control device (3), and is further connected to ○PTJt5), so lil*OPU+51 receives the signal sent from the remote control transmitter (4). It can be decoded with the same operation as . In this embodiment, the relay control device (3) was explained as a completely independent device, but the controlled device (71L) (71))
It goes without saying that it may be built into (70).

(G) Effects of the Invention As described above, according to the present invention, the software and hardware for decoding remote control signals of controlled devices such as television receivers and video tape recorders controlled by a remote control transmitter can be used as is. This has the advantage that multiple controlled devices can be operated with a single remote transmitter without incurring significant costs and storage costs.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of the remote control system of the present invention, FIGS. 2 and 5 are waveform diagrams of signals used therein, and FIG. 4 is a diagram showing a conventional remote control system. (1)...Remote control transmitter, (3)...
- Relay control device, (6&) (611)...Pass line, (7L) (71))C76)...Controlled equipment.

Claims (1)

[Claims] (1) A remote control consisting of a remote control transmitter, a relay control device that receives remote control signals from this transmitter, and multiple controlled devices that are connected to this relay control device and exchange signals in both directions. 1. A remote control system, wherein a signal transmitted between the relay control device and the plurality of controlled devices has the same format as a signal transmitted from the remote control transmitter.