JPH01119198A - Bidirectional remote control system - Google Patents

Abstract

PURPOSE:To establish a close bidirectional communications relation by returning the response result of a remote command object to a remote command received by means of a receiver provided to the remote command object, and displaying returning contents by means of a remote control transmitter to transmit the remote command. CONSTITUTION:The remote command transmitted from a transmitting circuit 16 is decoded after it is received by a receiver 12, and according to command contents, a CD-ROM is driven. In parallel with it, a signal to indicate the driving status of the CD-ROM is re-sent from a receiver 12 side to a remote control transmitter 13 side. At such a time, since a receiving circuit 17 in the remote control transmitter 13 receives the return from the receiver 12, the received return is decoded by a central processing unit 15, and thereafter, it is displayed on a display 18. Thus, the response result of the remote command object can be confirmed at the remote control transmitter 13 side, and the close bidirectional communications relation can be established between the remote control transmitter 13 and the receiver 12.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a two-way remote control system that improves the two-way communication relationship between a remote control transmitter and a receiver.

[Prior Art] A remote control system 1 shown in FIG. 3 is a system for remotely controlling a CD-ROM device 2 that drives a CD-ROM that is a read-only memory, and includes a remote control transmitter that transmits remote commands. 3, and a receiver 4 for receiving remote commands sent from the remote control transmitter 3, and the receiver 4 is assembled on the surface of the CI)-ROM drive device 2. The CD-ROM drive device 2 is provided with a display device 5 that displays the contents of the remote command received by the receiver 4, and allows you to check whether the remote command intended by the sender has been accurately transmitted. It can be read with the naked eye even from a distance.

[Problems to be Solved by the Invention] In the above conventional two-way remote control system 1, the receiver 4 receiving the transmission from the remote control transmitter 3 has the same <CD-4
By displaying the content of the remote command on the display device 5 provided in the 0M drive device 2, reception confirmation on the sending side can be visually confirmed.
Even for people with normal eyesight, the range in which the display contents can be read is at most several meters from the display device 5. Therefore, when such transmission confirmation is included, the usage range of the remote control transmitter 3 is greatly reduced. Furthermore, even if measures such as increasing the size of the display device 5 to widen the viewing range are taken, it is completely unsuitable for cases such as the CD-ROM drive device 2, which requires high miniaturization. Furthermore, there are problems such as the burden of design to meet the conflicting demands of securing display space and miniaturization, which cannot be ignored.

[Means for Solving the Problems] The present invention solves the above-mentioned problems, and is provided in a remote command target, receives a remote command, and returns a response result of the remote command target to the received remote command. and a remote control transmitter that transmits the remote command to the receiver, receives the reply after transmission, and displays the contents of the reply.

[Operation] According to the present invention, a receiver installed in a remote command target returns the response result of the remote command target to the received remote command, and the remote control transmitter that transmitted the remote command receives this reply and displays the reply contents. By displaying this, the response result of the remote command target can be confirmed on the remote control transmitter side, and a close two-way communication relationship is established between the remote control transmitter and the receiver.

[Example] Hereinafter, an example of the present invention will be described with reference to FIG. 1.2. FIG. 1 is a system configuration diagram showing an embodiment of the two-way remote control system of the present invention, and FIG.
FIG. 3 is a signal waveform diagram of each part of the circuit shown in the figure.

In FIG. 1, a two-way remote control system 11 is provided in a CD-ROM drive device 2 that is a remote command target, receives a remote command, and returns a response result of the CD-ROM drive device 2 to the received remote command. A receiver 12, and a remote control transmitter 1 that transmits a remote command to the receiver 12, receives a reply from the receiver 12 after transmission, and displays the contents of the reply.
Consists of 3. The remote control transmitter 13 has a keyboard 14 connected to the central processing unit 15 for inputting remote commands, and the remote commands input using the keyboard 14 are
After being converted into a pulse code by the central processing unit 15, the infrared light is transmitted to the medium from the transmitting circuit I6. Transmission circuit 16
is connected to the central processing unit 15 as a pair with a receiving circuit 17 that receives the reply from the receiver 12.The reply received by the receiving circuit 17 is decoded by the central processing unit 15 and displayed. displayed on the device 18.

That is, the remote command transmitted from the transmitting circuit 16 is received and decoded by the receiver 12, and the CD-ROM is driven according to the contents of the command. Also, in parallel with this,
From the receiver 12 side, a signal indicating the driving status of the CD-ROM is sent back to the remote control transmitter 13 side. At this time,
Since the receiving circuit 17 in the remote control transmitter 13 receives the reply from the receiver 12, the received reply is decoded by the central processing unit 15 and then displayed on the display device 18. In the case of the embodiment, the display contents of the display device 18 include the operation mode (read mode or search mode) of the CD-ROM drive device 2 and the read position with respect to the CD-ROM, in addition to the command contents of the remote command issued immediately before. data indicating the driving status, such as an index indicating the search position, and whether the remote commands have been properly transmitted to the receiver 12, or which remote commands are required to be added in order to move to the next step. and so on. Therefore, on the transmitting side, while viewing the display on the display device 18, it is possible to accurately grasp the driving status of the CD-40M drive device 2 located at a remote location, the next necessary remote command, etc.

The pulse code using infrared light consists of a reader code that indicates the beginning of the data for both transmission and reply, a custom code that indicates the type of signal code, and a command code that indicates the communication content, as shown in Figure 2. As shown, since the configuration is such that the reply from the receiver 12 is completed within a certain period of time after the last data of the command code has been transmitted, the reception waiting period of the remote control transmitter I3 is shortened, and the built-in battery is Unnecessary power consumption can be reduced.

In this way, the two-way remote control system 11 has the remote command display device 18 that was conventionally required on the receiver 12 side.
By providing it on the side of the remote control transmitter 13 that receives the reply from the receiver 12, it is possible to confirm whether the remote command has been reliably transmitted to the receiver 12 regardless of the transmitting position of the remote command, and at the same time, the display device Receiver 1 where 18 is no longer required
2 and the remote command target.Furthermore, the response from the receiver I2 not only indicates the operating status of the remote command target, but also indicates whether there is an excess or deficiency of the remote command or what is needed next. By including the content of the remote command, a closer two-way communication relationship between remote control transmitter I3 and receiver I2 can be established.

In addition, in the above embodiment, the two-way remote control system 1
1 is not limited to remote commands for the CD-ROM drive device 2;
For example, it can be applied to remote commands of household audio equipment, video equipment, air conditioning equipment, etc.

[Effects of the Invention] As explained above, in the present invention, the receiver provided in the remote command target returns the response result of the remote command target to the received remote command, and the remote control transmitter that transmitted the remote command By receiving this reply and displaying the reply contents, the remote control transmitter can check the response result of the remote command target, so the remote command display device that was conventionally required on the receiver side can be removed from the receiver. Installed on the remote control transmitter side that receives the reply, it is possible to confirm whether the remote command has been reliably transmitted to the receiver regardless of the transmitting position of the remote command, and at the same time, the receiver is miniaturized without the need for a display device. Furthermore, the response from the receiver not only indicates the operating status of the remote command target, but also the excess or deficiency of remote commands and the content of the next remote command that is required. By including this, excellent effects such as being able to establish an even tighter two-way communication relationship between the remote control transmitter and the receiver can be achieved.

[Brief explanation of the drawing]

Fig. 1 is a system configuration diagram showing an embodiment of the two-way remote control system of the present invention, Fig. 2 is a signal waveform diagram of each part of the circuit shown in Fig. 1, and Fig. 3 is a diagram of a conventional remote control system. FIG. 1 is a system configuration diagram showing an example. 11. , Two-way remote control system, 12. ,. receiver, 13. ,,remote control transmitter,18. ,. Display device.

Claims (1)

[Claims] a receiver provided on a remote command target, which receives a remote command and returns a response result of the remote command target to the received remote command; and a receiver that transmits the remote command to the receiver and receives the reply after transmission. , a two-way remote control system consisting of a remote control transmitter that displays the reply content.