CN100431316C - Wireless control system and method - Google Patents

Abstract

The present invention provides a wireless control system, including: an RS232 interface; a transmitter for wirelessly transmitting a first control signal; a first electronic device electrically connected to the RS232 interface for wirelessly receiving the first control signal, converting the first control signal into a second control signal in RS232 format, and transmitting the second control signal to the RS232 interface; and a second electronic device electrically connected to the RS232 interface for receiving the second control signal and executing a corresponding action accordingly.

Description

Wireless control system and method

technical field

The present invention relates to a wireless control system and method.

Background technique

In household audio-visual equipment, TV plays a very important role. It can be used to watch wired or wireless TV programs, and can be connected with other audio-visual equipment, such as video game consoles, VCRs, Media Gateways, etc. etc., to provide more audio-visual enjoyment.

Typically, each audiovisual device comes with its own remote control. Therefore, when the TV is connected with other audio-visual equipment, the user needs to operate two or more remote controllers at the same time. In this way, when using, the user needs to pay special attention to align the transmitting ports of different remote controllers with the corresponding audio-visual equipment, causing inconvenience in use. Furthermore, a plurality of different remote controls will also cause a waste of storage space.

Contents of the invention

In view of this, the present invention provides a wireless control system, comprising: an RS232 interface; a transmitter for sending a first control signal wirelessly; a first electronic device electrically connected to the RS232 interface for Receive the first control signal wirelessly, convert the first control signal into a second control signal in RS232 format, and transmit the second control signal to the RS232 interface; and a second electronic device, electrically connected to the RS232 interface Sexual connection for receiving the second control signal and executing a corresponding action accordingly.

The present invention further provides a wireless control method, including the following steps: providing a transmitter, an RS232 interface, a first electronic device and a second electronic device, wherein the RS232 interface is connected to the first electronic device and the second electronic device respectively The two electronic devices are electrically connected; the transmitter sends an activation signal and a first control signal wirelessly; the first electronic device receives the activation signal and the first control signal wirelessly; determines the activation signal according to the activation signal The current mode of the first electronic device; if the current mode is a normal mode, the first electronic device performs a corresponding first action according to the first control signal; if the current mode is a repeater mode, the first electronic device An electronic device converts the first control signal into a second control signal in RS232 format and transmits it to the RS232 interface; and the second electronic device receives the second control signal and executes a corresponding second action accordingly.

Description of drawings

FIG. 1 is a schematic diagram of a wireless control system of the present invention.

FIG. 2 is a schematic diagram of internal circuit units of each device in the wireless control system of the present invention.

FIG. 3 is a flowchart of the steps of the wireless control method of the present invention.

Symbol Description:

100 wireless control system

101 sender

102 The first electronic device

103 Second electronic device

104 RS232 interface

104a RS232 transmission line

104b RS232 connector

105 multimedia interface

105a Multimedia transmission line

105b Multimedia Connector

106 RJ45 network interface

106a RJ45 network transmission line

106b RJ45 network connector

201 start signal

202 The first control signal

203 Second control signal

300 first processor

301 receiver

302 video receiver

303 video tuning unit

304 second processor

305 Multimedia supply unit

306 video signal

307 multimedia data

308 Peripheral component connection interface bus

401 Start switch key

402 screen

403 speaker

501 Internet

502 video source

S1-S5 steps

C1 Judgment

Detailed ways

In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and understandable, the preferred embodiments are specially cited, and in conjunction with the accompanying drawings, the detailed description is as follows:

The main spirit of the present invention is to add an RS232 interface between the first electronic device and the second electronic device, so that when the first electronic device receives the command sent by the remote control, it can send the operation command belonging to the second electronic device Packaged into RS232 control commands, and then sent to the second electronic device through the RS232 interface, so as to control the second electronic device through the first electronic device.

The operating method and principle of the present invention are generally as follows: when the first electronic device receives the control signal sent by the remote controller, it first determines the current mode of the first electronic device, and when it is in the normal mode, the first electronic device Execute the corresponding action. When in the repeater mode, the first electronic device converts the control signal into RS232 format and transmits it to the second electronic device through the RS232 interface. Then, the second electronic device performs the corresponding action according to the control signal.

FIG. 1 shows a schematic diagram of a wireless control system 100 of the present invention.

As shown in the figure, the wireless control system 100 includes a transmitter 101 , a first electronic device 102 , a second electronic device 103 , an RS232 interface 104 and a multimedia interface 105 .

The first electronic device 102 is a television, and the second electronic device 103 is a media gateway (MediaGateway). The first electronic device 102 is connected to the second electronic device 103 through the RS232 interface 104 and the multimedia interface 105 . Moreover, the second electronic device 103 is further connected to the Internet 501 through the RJ45 network interface 106 .

The transmitter 101 is an infrared (infrared ray) remote controller, which can transmit the activation signal 201 and the first control signal 202 via wireless. Moreover, both the activation signal 201 and the first control signal 202 are infrared ray (infrared ray) signals. In addition, the transmitter 101 has an activation switch key 401, which can be used to switch the status of the activation signal 201 to ON or OFF.

FIG. 2 shows a schematic diagram of internal circuit units of each device in the wireless control system 100 of the present invention.

As shown in the figure, the RS232 interface 104 includes an RS232 transmission line 104a and two RS232 connectors 104b respectively disposed on the first electronic device 102 and the second electronic device 103 .

Furthermore, the multimedia interface 105 includes a multimedia transmission line 105a and two multimedia connectors 105b respectively disposed on the first electronic device 102 and the second electronic device 103 . In addition, the multimedia interface 105 may be a coaxial cable, an S-Video interface or an A/V interface.

Moreover, the RJ45 network interface 106 includes an RJ45 network transmission line 106 a and an RJ45 network connector 106 b disposed on the second electronic device 103 .

The first electronic device 102 has a first processor 300 , a receiver 301 , a video receiving end 302 and a video tuning unit 303 .

The receiver 301 can wirelessly receive the activation signal 201 and the first control signal 202 sent by the transmitter 101 and transmit them to the first processor 300 .

The first processor 300 is an 8086 microprocessor (8086 micro processor), which is electrically connected to the receiver 301, the video tuning unit 303, the RS232 connector 104b of the RS232 interface 104, and the multimedia connector 105b of the multimedia interface 105.

When the first processor 300 receives the start signal 201 and the first control signal 202 from the receiver 301, it can decide whether to convert the first control signal 202 into the second control signal 203 of RS232 format according to the start signal 201 And send to RS232 interface 104.

The video receiver 302 is used to receive the video signal 306 from the video source 502 and transmit the video signal 306 to the video tuning unit 303 . The video receiving terminal 302 can be a coaxial cable terminal, an S-Video terminal or an A/V terminal. Also, the video signal 306 can be a television signal in NTSC format, PAL format or other formats.

The video tuning unit 303 is electrically connected to the video receiving end 302 and the first processor 300 respectively, and is used to tune the video signal 306 and send it to the first processor 300 .

When the first processor 300 receives the video signal 306 from the video tuning unit 303 , it can transmit the video signal 306 to the screen 402 and the speaker 403 (see FIG. 1 ) for users to watch.

The second electronic device 103 has a second processor 304 and a multimedia supply unit 305 .

The second processor 304 is electrically connected to the RS232 connector 104 b of the RS232 interface 104 , the multimedia connector 105 b of the multimedia interface 105 , and the multimedia supply unit 305 . Moreover, the second processor 304 is electrically connected to the multimedia supply unit 305 via a peripheral component interconnect bus (PCIbus) 308 .

In this way, the second processor 304 can receive the second control signal 203 transmitted from the first processor 300 via the RS232 interface 104 .

The multimedia supply unit 305 is configured to provide multimedia data 307 to the second processor 304 . Moreover, the multimedia supply unit 305 is controlled by the second processor 304 .

Moreover, the second processor 304 can decode the multimedia data 307 received from the multimedia supply unit 305 and transmit it to the multimedia interface 105 . The decoding operation is performed according to the motion picture experts group (MPEG).

In this way, the second electronic device 103 can provide the multimedia data 307 to the first electronic device 102 through the multimedia interface 105 .

When the first processor 300 of the first electronic device 102 receives the multimedia data 307 from the multimedia interface 105, it can transmit the multimedia data 307 to the screen 402 and the speaker 403 (see FIG. 1 ) for users to watch.

Moreover, the multimedia supply unit 305 is a network storage unit, and is electrically connected to the RJ45 network connector 106 b of the RJ45 network interface 106 , so that the multimedia data 307 can be obtained by connecting to the Internet 501 via the RJ45 network interface 106 .

Moreover, the multimedia provision unit 305 can also be connected to the Internet 501 in a wireless manner to obtain the multimedia data 307 .

Moreover, the multimedia supply unit 305 obtains the multimedia data 307 via the Internet 501 by means of streaming technology.

It can be supplemented here that, in other possible embodiments, the second electronic device 103 can also be a multifunctional digital disc (Digital Versatile Disc, DVD) recorder, and at this time, the multimedia supply unit 305 can be a multifunctional Digital disc storage unit.

The wireless control system 100 operates according to the wireless control method provided by the present invention. The following describes the operation details and principles of the wireless control system 100 according to the flow of the wireless control method.

FIG. 3 shows a flowchart of the steps of the wireless control method of the present invention.

Here, please refer to the aforementioned icons, symbols and text descriptions at the same time.

First, in step S1 , the transmitter 101 wirelessly transmits the activation signal 201 and the first control signal 202 to the first electronic device 102 . It can be supplemented here that the transmitter 101 has an activation switching key 401 (see FIG. 1 ), which can be used to switch the activation signal 201 to ON or OFF.

In step S2 , the receiver 301 of the first electronic device 102 wirelessly receives the activation signal 201 and the first control signal 202 and transmits them to the first processor 300 .

In the determination formula C1 , the first processor 300 determines the current mode of the first electronic device 102 according to the activation signal 201 . It can be added here that when the user switches the state of the activation signal 201 to OFF via the activation switching key 401 (see FIG. 1 ), the current mode of the first electronic device 102 is the normal mode. Moreover, when the user switches the state of the activation signal 201 to ON via the activation switching key 401 (see FIG. 1 ), the current mode of the first electronic device 102 is the repeater mode.

If the current mode is the normal mode, then proceed to step S3, indicating that the user is using the transmitter 101 to remotely control the first electronic device 102, therefore, the first processor 300 performs the corresponding first action according to the first control signal 202. At this point, the process ends.

If the current mode is the repeater mode, proceed to step S4, indicating that the user is using the transmitter 101 to remotely control the second electronic device 103, therefore, the first processor 300 converts the first control signal 202 into a second control signal in RS232 format. The signal 203 is sent to the RS232 interface 104 . More precisely, the first processor 300 encapsulates the infrared command in the first control signal 202 into the second control signal 203 according to the RS232 format. For example, if the infrared command of the first control signal 202 is "0x4C", it means that the user presses the "LEFT" key, then the second control signal 203 encapsulated according to the RS232 format is composed of the following sections in series: Into: "0xBE", "0xBF", "Packet Header", "0x4C", "CRC32 checksum".

Finally, in step S5 , the second processor 304 receives the second control signal 203 via the RS232 interface 104 and executes the corresponding second action accordingly. More precisely, the second processor 304 interprets the infrared command encapsulated in the second control signal 203 , and then executes the corresponding second action according to the interpreted infrared command. At this point, the process ends.

Let's give an operation example to illustrate.

Assume that the user originally controls the first electronic device 102 via the transmitter 101 , that is, the current mode of the first electronic device 102 is the normal mode. If the user wants to operate the second electronic device 103 at this time, so as to watch the multimedia data 307 provided by the second electronic device 103 through the screen 402 and the speaker 403 (see FIG. 1 ) of the first electronic device 102, then the The user needs to perform the following actions.

First, the user presses the activation switch key 401 (see FIG. 1 ) to switch the status of the activation signal 201 from OFF to ON, and then the user presses the "PLAY" key of the transmitter 101 (that is, the multimedia play command) , to achieve the desired result.

The operation details of the wireless control system 100 in this example will be described below according to the flow of the wireless control method.

First, in step S1, when the user presses the activation switching key 401 (see FIG. 1 ) and the "PLAY" key, the transmitter 101 wirelessly transmits the activation signal 201 and the first control signal 202 to the first electronic device 102. At this time, the state of the enable signal 201 is ON, and the infrared command of the first control signal 202 is "0x70".

In step S2 , the receiver 301 of the first electronic device 102 wirelessly receives the activation signal 201 and the first control signal 202 and transmits them to the first processor 300 .

In the judgment formula C1, the first processor 300 determines that the state of the activation signal 201 is ON, so it can determine that the current mode of the first electronic device 102 is the repeater mode, indicating that the user wants to use the transmitter 101 to Remotely control the second electronic device 103 .

Next, in step S4 , the first processor 300 converts the first control signal 202 into a second control signal 203 in RS232 format and transmits it to the RS232 interface 104 . In this example, the infrared command of the first control signal 202 is "0x70", and the second control signal 203 encapsulated according to the RS232 format is composed of the following sections connected in series: "0xBE", "0xBF" , "Packet Header", "0x70", "CRC32 checksum".

In step S5, the second processor 304 receives the second control signal 203 via the RS232 interface 104, and interprets the infrared command encapsulated in the second control signal 203 as "0x70", representing the user pressing "PLAY". key. Therefore, the second processor 304 instructs the multimedia supply unit 305 to provide the multimedia data 307 to the second processor 304 . Then, the second processor 304 decodes the multimedia data 307 by using the motion picture experts group (MPEG) standard. Finally, the second processor 304 transmits the decoded multimedia data 307 to the first electronic device 102 through the multimedia interface 105 . In this way, the second electronic device 103 achieves the function of providing the multimedia data 307 to the first electronic device 102 through the multimedia interface 105 .

Finally, when the first processor 300 of the first electronic device 102 receives the multimedia data 307 transmitted from the multimedia interface 105, it can transmit the multimedia data 307 to the screen 402 and the speaker 403 (see FIG. 1 ), so, use The user can view the multimedia data 307 provided by the second electronic device 103 through the first electronic device 102 .

In the present invention, by installing an RS232 interface between the first electronic device and the second electronic device, the first electronic device can package the operation instructions belonging to the second electronic device into The RS232 control command is sent to the second electronic device through the RS232 interface, so as to realize the function of controlling the second electronic device through the first electronic device.

In this way, when the user enjoys audio-visual equipment at home and connects the TV with other audio-visual equipment, the user can use only one remote controller to achieve the effect of controlling the TV and another audio-visual equipment, which not only saves the need for The trouble of aligning the launch port of the remote control with the corresponding audio-visual equipment increases the flexibility and convenience of use, and also saves the storage space of the remote control.

Although the present invention is disclosed above with preferred embodiments, it is not intended to limit the scope of the present invention. Anyone skilled in this art can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention should be defined by the claims.

Claims (12)

1. wireless control system comprises:

One RS232 interface;

One multimedia interface;

One transmitter sends one first control signal with wireless mode;

One first electronic installation, be electrically connected with this RS232 interface and this multimedia interface, receive this first control signal in order to wireless mode, this first control signal is converted to the multimedia instruction of RS232 form, and transmit this multimedia instruction to this RS232 interface; And

One second electronic device, be electrically connected with this RS232 interface, and having a multimedia feeding unit and this multimedia interface electric property coupling, this second electronic device provides multi-medium data to this first electronic installation in order to receive this multimedia instruction and to see through this multimedia interface by this multimedia feeding unit.

2. wireless control system as claimed in claim 1, wherein, this multimedia feeding unit is a multifunctional digital disk stores unit.

3. wireless control system as claimed in claim 1, wherein, this multimedia feeding unit is a network storage element, this multi-medium data receives by the Internet via this network storage element and gets.

4. wireless control system as claimed in claim 1, wherein, this transmitter is an infrared remote controller, and this first control signal is an infrared control signal.

5. wireless control system as claimed in claim 1, wherein, this first electronic installation is a television set.

6. wireless control system as claimed in claim 1, wherein, this second electronic device is a videocorder.

7. wireless control system as claimed in claim 1, wherein, this second electronic device is a media gateway device.

8. wireless control method may further comprise the steps:

One transmitter, a RS232 interface, a multimedia interface, one first electronic installation and a second electronic device are provided, wherein, this RS232 interface is electrically connected with this first electronic installation and this second electronic device respectively, and this multimedia interface is electrically connected with this first electronic installation and this second electronic device respectively;

This transmitter sends an enabling signal and one first control signal with wireless mode;

This first electronic installation receives this enabling signal and this first control signal with wireless mode;

Determine a present pattern of this first electronic installation according to this enabling signal;

If this present pattern is a general pattern, then this first electronic installation is carried out one first corresponding action according to this first control signal;

If this present pattern is a repeater mode, then this first electronic installation is converted to this first control signal the one multimedia instruction of RS232 form and is sent to this RS232 interface; And

This second electronic device receives this multimedia instruction and sees through this multimedia interface provides multi-medium data to this first electronic installation.

9. wireless control method as claimed in claim 8, wherein, this transmitter is an infrared remote controller, this enabling signal and this first control signal are all infrared signal.

10. wireless control method as claimed in claim 8, wherein, this first electronic installation is a television set.

11. wireless control method as claimed in claim 8, wherein, this second electronic device is a videocorder.

12. wireless control method as claimed in claim 8, wherein, this second electronic device is a media gateway device.

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