WO2011079649A1

WO2011079649A1 - Method for remotely waking set-top box, set-top box, server and system

Info

Publication number: WO2011079649A1
Application number: PCT/CN2010/078503
Authority: WO
Inventors: 陈俊涛
Original assignee: 华为终端有限公司
Priority date: 2009-12-28
Filing date: 2010-11-08
Publication date: 2011-07-07
Also published as: CN101771866A; CN101771866B

Abstract

The embodiment of the present invention discloses a method for remotely waking a set-top box, a set-top box and a system. The method includes that: a tuner demodulates a received network signal to obtain a Transport Stream (TS) signal, and transmits the TS signal to a single chip; according to the TS signal, the single chip determines that the set-top box needs to be waked. In the embodiment of the present invention, it is remained that the set-top box feeds power supply to the tuner in the state of real standby; and by the TS signal demodulated by the tuner, it is determined that the set-top box needs to be waked; thus it is implemented that an operator can wake the set-top box at any time while the set-top box is in the state of real standby.

Description

The invention relates to a method for remotely waking up a set top box, a set top box, a server and a system. The present application claims priority to Chinese Patent Application No. 200910189392.X filed on Dec. 28, 2009, the entire contents of In the application. Technical field

The present invention relates to the field of data communications, and in particular to a method, a set top box, a server and a system for remotely waking up a set top box. Background technique

When the set-top box is in the standby state, the operator sometimes needs to wake up the set-top box and ask the set-top box to perform some operations, such as performing a forced upgrade, watching emergency news or notifications, and the like. At present, the more common set-top box standby scheme is that the main chip runs in a relatively energy-saving working state during standby, for example, shutting down some internal modules, and the tuner module of the set-top box and the de-multiplexing module of the main chip are still energized to work. This kind of standby mode is generally called "false standby". In the "false standby" state, the information sent by the operator is demodulated into a TS stream (Transport Stream) by the tuner inside the set-top box. At this time, the main processor of the set-top box is still in operation, so the TS stream is still It can be demultiplexed by the CPU and analyze the information content in the TS stream. Therefore, when the operator needs to wake up the set-top box or ask the set-top box to perform the specified action, directly add the description information directly to the TS stream. It is common practice to Add such a description to the EMM (Entitlement Management Message).

The above standby scheme is a "false standby" scheme. When the "false standby" is set, the set-top box is still in a relatively high power consumption state, and there is also a "true standby" scheme. The standby power consumption of "true standby" is generally less than 2W or 1W. Generally, the power supply of the system can be cut off by using a single-chip microcomputer, so that both the CPU and the tuner are in a power-off state. At this time, at least the single-chip microcomputer and the infrared receiver can be reserved in the system. "Real Standby", because the main processor of the set-top box, or related modules in the main processor, such as the demultiplexing module, is in a non-working state, the set-top box cannot parse the content information in the TS stream, so the set-top box Can't receive The wake-up message sent by the operator.

At present, if the operator needs to wake up the set-top box during the "real standby", for example, when the upgrade is performed, the operator and the set-top box generally agree to a time upgrade, and the appointment time may be that the set-top box is solidified in the set-top box when it leaves the factory, or it may be When the network is in the network, the operator informs the set-top box. Since the single-chip microcomputer can time it, the system power can be turned on at the predetermined time to wake up.

The inventor found in the process of implementing the present invention that in the "true standby" state, if the operator needs to wake up the set top box, the reservation scheme can only be a wake-up solution in a true sense, and It is also impossible to wake up the set-top box at any time. Summary of the invention

The embodiment of the invention provides a method for remotely waking up a set top box, a set top box, a server and a system, so that the set top box can be awake at any time in a true standby state, and the operator can wake up the set top box at any time.

A method for remotely waking up a set-top box according to an embodiment of the present invention includes: a tuner demodulating a received network signal, obtaining a TS stream signal, and transmitting the TS stream signal to a single-chip microcomputer; the single-chip microcomputer according to the TS stream signal, It is determined that the set top box needs to be woken up.

A set top box includes: a tuner and a single chip microcomputer; the tuner is configured to demodulate the received network signal, obtain a TS stream signal, and send the TS stream signal to the single chip microcomputer; And determining, according to the TS stream signal, that the set top box needs to be woken up.

A server includes: a multiplexer and a sending module; the multiplexer is configured to multiplex a specific data stream and other data streams to form an output data stream; and the sending module is configured to: m output data streams carrying the specific data stream are sent to the set top box every n minutes.

The present invention implements a system, including: a server and a set top box; the server is configured to multiplex a specific data stream and other data streams to form an output data stream, and carry m specific data every n minutes The output data stream of the stream is sent to the set top box; the set top box is configured to demodulate the received output data stream, obtain a TS stream signal, and determine, according to the TS stream signal, that the set top box needs to be woken up. The embodiment of the invention retains the power supply of the set-top box to the tuner in the "true standby" state, and the TS stream signal demodulated by the tuner determines that the set-top box needs to be woken up, so that the set-top box can be in a true standby state, the operator can always Wake up the set top box. DRAWINGS

1 is a schematic flow chart of an embodiment of a method according to the present invention;

2 is a schematic diagram of power supply control of a set top box in a "true standby" state according to an embodiment of the present invention; FIG. 3 is a diagram showing relationship of a TS stream signal according to an embodiment of the present invention;

4 is a schematic structural diagram of a set top box according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a server according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a system according to an embodiment of the present invention. detailed description

The technical solutions of the embodiments of the present invention are further described below with reference to the accompanying drawings.

FIG. 1 is a schematic diagram of a method for remotely waking up a set top box according to an embodiment of the present invention, including:

Step 101: The tuner demodulates the received network signal to obtain a TS stream signal, and sends the TS stream signal to the single chip microcomputer.

Step 102: The single chip determines, according to the TS stream signal, that the set top box needs to be woken up.

In the prior art, in the "true standby" state of the set-top box, the single-chip microcomputer turns off the power supply of the main chip and the tuner. At this time, only the single-chip microcomputer and the infrared receiver are in a working state in the set-top box system (of course, the power module is not included). The MCU is not connected to the network, so the MCU cannot receive network information. 2 is a schematic diagram of power supply control of a set top box in a "true standby" state according to an embodiment of the present invention. When the infrared receiving module of the set top box of the embodiment of the present invention receives the standby command, the power supply control unit disconnects the power supply to the main chip, but retains the power supply of the tuner, so that the tuner is still in operation and can receive the network signal.

Since the power supply of the tuner is retained, the embodiment of the present invention has a larger standby power consumption than the existing "real standby" scheme of the set top box, but the power consumption of the tuner itself is about 1 W, so the power of the set top box is completed. The consumption can still be controlled within 1.5W. And as the process is updated, the power consumption of the tuner will be lower and lower, and the power consumption of the set-top box can be controlled within 1W.

As shown in FIG. 3, the tuner demodulates the received network signal, and the obtained TS stream signal generally includes: a bit clock signal (M_CKOUT), a frame synchronization signal (M_SYNC), and a data valid signal (M_VAL). , error indication signal (M_ERR), data signal (M_DATA[7:0]), etc. Wherein, there is usually a data check bit at the end of each frame (packet) of the TS stream signal. For example, the coding method of RS (204, 188) is adopted in FIG. 3, wherein 16 (204, 188) bytes are The first 188 bytes of the insurance risk, when the check finds that the first 188 bytes have a wrong byte, the M-ERR signal will output a high level, and the data is correct or the limited wrong bit has been After correction, the M-ERR signal will remain low for output.

In the embodiment of the present invention, the network signal received by the tuner from the operator may be a specific data stream, and the check bits of some frames (packets) of the specific data stream are wrong and uncorrectable, and may be called Is the wrong frame (package). When the tuner demodulates the specific data stream, if a wrong frame (packet) is received, the M_ER signal in the demodulated TS stream signal will output a high level signal, if it is received In the correct frame (packet), the M-ERR signal in the demodulated TS stream signal will output a low level signal.

In order not to affect the set-top box that normally watches TV programs, these specific error frames (packets) can be used with separate special PID (Packet Identifier) frame headers, and are not mixed with other used frames (packets), such as video. Stream, audio stream, etc. In this way, the set-top box can also filter out these specific data streams when watching TV programs normally.

These specific data streams and other data streams are multiplexed together by a multiplexer. In general, the code rates input by the operator to the multiplexer are basically equal, and the number of code streams multiplexed by each multiplexer is the same, generally 6 channels. When a code stream containing an uncorrectable error frame is newly inserted, each data packet in the code stream is substantially evenly distributed among the new data packets of the output code stream.

In this embodiment, the tuner demodulates the received network signal to obtain a TS stream signal, and the TS is The stream signal is sent to the single chip microcomputer by the following means: The regulator demodulates the received network signal, obtains the M_ERR signal in the TS stream signal, and sends the M_ERR signal to the single chip microcomputer.

The operator can send m specific data streams carrying the wrong frame every n minutes, and the time for sending the m specific data streams carrying the wrong frame can be set to be less than n/2 minutes or n/3 minutes. The example is not limited. In this way, when the tuner sends the demodulated M_ERR signal to the single chip microcomputer, when the M_ERR signal received by the single chip microcomputer is a high level signal, the timer and the counter are started, when the predetermined number of cycles is within a predetermined n minutes. When a predetermined number of m specific data streams carrying the wrong frame are received, it is determined that the set top box needs to be woken up. The predetermined number of cycles can be set according to the needs of the actual application, which is three times in this embodiment; in this embodiment, m and n are natural numbers.

When the network signal is not ideal, a wrong frame (packet) may also occur. At this time, the M-ERR signal also outputs a high level signal, but in this case, the error frame (packet) is irregular, and the present invention is implemented. The solution of the example avoids the possibility of erroneously judging that the set top box needs to be woken up when the network signal is not ideal.

4 is a schematic structural diagram of a set top box according to an embodiment of the present invention, including a tuner 41 and a single chip microcomputer 42. The tuner 41 is configured to demodulate the received network signal, obtain a TS stream signal, and send the TS stream signal to the MCU 42. The single chip microcomputer 42 is configured to determine that the set top box needs to be woken up according to the TS stream signal.

The network signal includes: a specific data stream, where the specific data stream includes a wrong frame or a wrong packet, where the error frame or the error packet is a data frame or a data packet whose check bit is an error and is uncorrectable; The particular data stream is distributed substantially evenly across the output data stream on the network side.

The tuner 41 includes: a demodulation module 411 for demodulating the specific data stream to obtain an M_ERR signal in the TS stream signal, and a transmitting module 412 for transmitting the M_ERR signal to the single chip microcomputer 42.

The single chip microcomputer 42 includes a receiving module 421, a timer 422, a counter 423, and a determining module 424. The receiving module 421 is configured to receive the M_ERR signal, and the timer 422 is configured to start timing when the received M_ERR signal is a high level signal, and notify the counter 423 when the timing reaches a predetermined n minutes; 423. When the received M-ERR signal is a high level signal, start the calculation pre- Receiving the predetermined number of times of the m specific data streams carrying the wrong frame and the number of times of receiving the loop within n minutes; the determining module 424 is configured to receive the predetermined m times in the predetermined n minutes by the predetermined number of times of the cycle. When a particular data stream carrying a wrong frame is carried, it is determined that the set top box needs to be woken up. The predetermined number of cycles can be set according to the needs of the actual application, which is three times in this embodiment; in this embodiment, m and n are natural numbers.

The specific error frame can also use a separate special PID frame header so as not to be mixed with other already used frames (packets), so that the set-top box can also filter out these specific frames (packets) when watching TV programs normally, Affect the normal viewing of TV shows.

As shown in FIG. 5, an embodiment of the present invention further provides a server, including a multiplexer 51 and a transmitting module 52. The multiplexer 51 is configured to multiplex the specific data stream and the other data streams to form an output data stream, and the sending module 52 is configured to send the m output data streams carrying the specific data stream to the set top box every n minutes. The time during which m outgoing output data streams carrying a particular data stream can be set to be less than n/2 minutes or n/3 minutes.

The specific data stream includes a wrong frame or a wrong packet, where the error frame or the error packet is a data frame or a data packet whose parity bit is an error and is uncorrectable; the specific data stream is substantially evenly distributed on the network side. Output in the data stream. The specific error frame can also use a separate special PID frame header so as not to be mixed with other already used frames (packets), so that the set top box can also filter out these specific frames (packets) when watching TV programs normally, Affect the normal viewing of TV shows.

As shown in FIG. 6, an embodiment of the present invention further provides a system including a server 61 and a set top box 62. The server 61 is configured to multiplex the specific data stream and the other data streams to form an output data stream, and send the m output data streams carrying the specific data stream to the set top box every n minutes. The time during which m outgoing output data streams carrying a particular data stream can be set to be less than n/2 minutes or n/3 minutes. The set top box 62 is configured to demodulate the received output data stream to obtain a TS stream signal, and according to the TS stream signal, determine that the set top box 62 needs to be woken up.

The specific data stream includes a wrong frame or a wrong packet, and the error frame or the wrong packet is a parity bit. And uncorrectable data frames or data packets; the specific data streams are substantially evenly distributed in the output data stream on the network side.

The set top box 62 includes a tuner 41 and a single chip microcomputer 42 as shown in FIG. The tuner 41 includes: a demodulation module 411 for demodulating the specific data stream to obtain an M_ERR signal in the TS stream signal, and a sending module 412 for transmitting the M_ERR signal to the single chip microcomputer 42.

The microcontroller 42 includes a receiving module 421, a timer 422, a counter 423, and a determining module 424. The receiving module 421 is configured to receive the M_ERR signal, and the timer 422 is configured to start timing when the received M_ERR signal is a high level signal, and notify the counter 423 when the timing reaches a predetermined n minutes; 423, configured to: when the received M_ERR signal is a high level signal, start counting a number of times of receiving the predetermined m specific data streams carrying the wrong frame within a predetermined n minutes and the number of times received in a loop; The module 424 is configured to determine that the set top box 62 needs to be woken up when a predetermined number of times of the predetermined m data frames carrying the error frame are received within a predetermined number of n minutes. The predetermined number of cycles can be set according to the needs of the actual application, which is three times in this embodiment; in this embodiment, m and n are natural numbers.

This particular error frame can also use a separate special PID header to not be used with other already used frames.

(Packages) are mixed together, so that the set-top box can also filter out these specific frames (packages) when watching TV programs normally, without affecting the normal viewing of TV programs.

The embodiment of the invention retains the power supply of the set-top box to the tuner in the "true standby" state, and the TS stream signal demodulated by the tuner determines that the set-top box needs to be woken up, so that the set-top box can be in a true standby state, the operator can always Wake up the set top box.

Through the description of the above embodiments, those skilled in the art can clearly understand that the present invention can be implemented by means of software plus a necessary general hardware platform, and of course, can also be through hardware, but in many cases, the former is a better implementation. the way. Based on such understanding, the essential machine software product of the present invention is stored in a readable storage medium, such as a computer floppy disk, a hard disk or an optical disk, etc. The instructions are used to cause a device to perform the methods described in various embodiments of the present invention. The above is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or within the technical scope disclosed by the present invention. Alternatives are intended to be covered by the scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

Claim

A method for remotely waking up a set top box, characterized in that it comprises:

The tuner demodulates the received network signal to obtain a TS stream signal, and sends the TS stream signal to the single chip microcomputer;

The MCU determines that the set top box needs to be woken up according to the TS stream signal.

2. The method according to claim 1, wherein the network signal comprises: a specific data stream, the specific data stream includes a wrong frame or a wrong packet, and the error frame or the error packet is a check bit error. And uncorrectable data frames or data packets;

The particular data stream is distributed substantially evenly across the output data stream on the network side.

The method according to claim 2, wherein the tuner demodulates the received network signal to obtain a TS stream signal, and sends the TS stream signal to the single chip microcomputer, comprising: the regulator demodulating the received The network signal obtains the M_ER signal in the TS stream signal, and sends the M_ERR signal to the single chip microcomputer.

Determining, by the MCU according to the TS stream signal, that the set top box needs to be woken up includes: when the M_ERR signal received by the single chip microcomputer is a high level signal, starting a timer and a counter, and receiving m times when the predetermined number of cycles is within n minutes When the particular data stream is in progress, it is determined that the set top box needs to be woken up.

4. The method according to claim 3, further comprising:

The network side multiplexes the specific data stream with other data streams to form an output data stream; and sends m output data streams carrying the specific data stream to the set top box every n minutes.

5. Method according to claim 4, characterized in that the time of sending m output data streams carrying a particular data stream is less than n/2 minutes or less than n/3 minutes.

6. The method according to claim 2, wherein the error frame or the error packet uses a separate special PID frame header.

7. A set top box, comprising: a tuner and a single chip microcomputer;

The tuner is configured to demodulate the received network signal, obtain a TS stream signal, and use the TS The stream signal is sent to the single chip microcomputer;

The single chip microcomputer is configured to determine, according to the TS stream signal, that the set top box needs to be woken up.

The set top box according to claim 7, wherein the network signal comprises: a specific data stream, the specific data stream includes a wrong frame or a wrong packet, and the error frame or the error packet is a check bit error. And uncorrectable data frames or data packets;

The set top box according to claim 8, wherein the tuner comprises: a demodulation module, configured to demodulate the specific data stream, to obtain an M_ERR signal in the TS stream signal;

And a sending module, configured to send the M_ERR signal to the single chip microcomputer.

The single chip microcomputer includes:

a receiving module, configured to receive the M-ERR signal;

a timer, configured to start timing when the received M-ERR signal is a high level signal, and notify the counter when the timer reaches a predetermined n minutes;

The counter is configured to start, when the received M_ERR signal is a high level signal, start counting the number of times the m specific data streams are received in n minutes and the number of times received in a loop;

The determining module is configured to determine that the set top box needs to be woken up when the predetermined number of times of receiving the m specific data streams is received within n minutes.

The set top box according to claim 8, wherein the error frame or the error packet uses a separate special PID frame header.

A server, comprising: a multiplexer and a transmitting module;

The multiplexer is configured to multiplex a specific data stream and other data streams to form an output data stream;

The sending module is configured to send m output data streams carrying the specific data stream to the set top box every n minutes.

The server according to claim 11, characterized in that the time for issuing m output data streams carrying a specific data stream is less than n/2 minutes or less than n/3 minutes.

The server according to claim 11, wherein the specific data stream includes a wrong frame or a wrong packet, and the error frame or the error packet is a data frame or a data packet whose check digit is an error and is uncorrectable; The particular data stream is distributed substantially evenly across the output data stream on the network side.

The set top box according to claim 13, wherein the error frame or the error packet uses a separate special PID frame header.

15. A system, comprising: a server and a set top box;

The server is configured to multiplex a specific data stream and other data streams to form an output data stream, and send m output data streams carrying the specific data stream to the set top box every _n minutes;

The set top box is configured to demodulate the received output data stream, obtain a TS stream signal, and determine, according to the TS stream signal, that the set top box needs to be woken up.