CN110278473B - Digital television remote control channel switching method and system based on voice recognition - Google Patents
Digital television remote control channel switching method and system based on voice recognition Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000013515 script Methods 0.000 claims abstract description 61
- 230000005540 biological transmission Effects 0.000 claims description 10
- 238000012790 confirmation Methods 0.000 claims description 5
- 238000013507 mapping Methods 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 230000011664 signaling Effects 0.000 abstract 1
- 108091006146 Channels Proteins 0.000 description 161
- 230000006870 function Effects 0.000 description 9
- 238000013461 design Methods 0.000 description 3
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/422—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
- H04N21/42203—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS] sound input device, e.g. microphone
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/422—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
- H04N21/42204—User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor
- H04N21/42206—User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor characterized by hardware details
- H04N21/42221—Transmission circuitry, e.g. infrared [IR] or radio frequency [RF]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
- H04N21/4383—Accessing a communication channel
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Abstract
The invention relates to a digital television remote control channel changing method and system based on voice recognition, belonging to the field of intelligent household appliances. The method comprises the steps of 1, converting voice into corresponding instruction text; 2. matching the instruction text with the channel names in the channel list or the program names in the program list, so as to obtain the channel number corresponding to the instruction text; 3. finding a preset channel change remote control script according to the channel change instruction; 4. and executing a channel changing remote control script according to the channel number to generate a remote control transmitting code, converting the remote control transmitting code into a corresponding infrared remote control signal, and controlling the television to convert into a channel number corresponding to the instruction text. The system comprises: the system comprises a portable terminal, a remote control transmitting device, a voice recognition server and a data server. When the channel switching of the television is realized by using the functional script data, the channel switching can be completed only according to the channel name or the program name without memorizing the channel number of the television, thereby providing convenience for users.
Description
Technical Field
The invention relates to the field of intelligent household appliances, in particular to a digital television remote control channel switching method and system based on voice recognition.
Background
In both the analog television era and the digital television era, the remote controller of the television brings great convenience to the life of people, and the channel can be changed without people walking to the side of the television, so that the television is convenient and quick.
However, the remote controller is convenient and still has some restrictions. It requires the hand to be used, which sometimes makes it impossible to change the table when the hands are not empty. It sometimes takes multiple keystrokes to find the desired function and station. Sometimes, the remote controller may not be found at all times. With the development of internet and voice recognition technology, voice remote controllers have come into play.
The voice remote controller is fixedly arranged at a position which can be received by the television, is recognized as an instruction by listening to the voice input of a user, generates a remote control code for channel change according to the instruction and then sends the remote control code to the television equipment. Therefore, the user can change the channel by speaking, hands can be liberated, and the user does not need to find the remote controller in a busy and messy way when needed.
However, the function of the current speech remote controller on the market is greatly limited, and when a user wants to change to a specific television station, the user cannot input speech according to the name of the television program but according to the channel number of the television program. For example, the channel number of the center five station is 105, and the user can only say "change to the 105 th channel", but cannot say "change to the center five station" or "center sports station". Because the existing remote control does not know the channel number corresponding to each tv program. This can be cumbersome to use, requiring the user to either remember the channel number for which the station is to be changed, or to switch from station to station until the desired channel is selected. Moreover, when the tv operator modifies the channel number of the tv program, it is necessary to remember the new channel number again. The original purpose of the voice remote controller is to make the user more convenient, but the problem is difficult.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a digital television remote control channel switching method and system based on voice recognition.
In order to achieve the above purpose, the invention provides the following technical scheme:
a digital television remote control channel switching method based on voice recognition comprises the following steps:
s1, converting the voice into a corresponding instruction text, wherein the instruction text comprises a channel switching instruction and comprises a channel name or a program name;
s2, matching the instruction text with the channel name in the channel list or the program name in the program list, so as to obtain the channel number corresponding to the instruction text;
s3, finding out a preset channel change remote control script according to the channel change instruction;
and S4, executing a channel changing remote control script according to the channel number, wherein the channel changing remote control script generates a remote control transmitting code in the executed process, the remote control transmitting code is converted into a corresponding infrared remote control signal, and the infrared remote control signal controls the television to be converted into a channel number corresponding to the instruction text.
The data stored in the channel list includes a television channel number, a channel name corresponding to the television channel number, and a plurality of names of the channel name, and the step of obtaining the channel number corresponding to the instruction text includes: and searching whether a channel name or an alias is matched with the instruction text in the channel list, if so, extracting a corresponding channel number as a script parameter, and if not, sending prompt information.
The data stored in the program list comprises a television channel number, a channel name corresponding to the television channel number and a program name of each channel name, the program names are sorted according to the time sequence, and the step of acquiring the channel number corresponding to the instruction text comprises the following steps: and searching whether the program name is matched with the instruction text in the program list, if so, extracting the corresponding channel number as a script parameter, and if not, sending prompt information.
The preset channel switching remote control script comprises channel switching script function data, and the channel switching script function data comprises: script parameters, number of keys related to the parameters, interval time of keys of the parameters,
the script parameters are channel numbers and integer data; the number of the parameters is one; the number of the parameter-related keys is multiple; the parameter key interval time is in units of 100 ms.
The specific steps of step S4 include:
s11, executing the preorder key execution step: converting the key-press code of the exit key into a transmitting code, and then spacing parameter key-press interval time;
s12, executing the parameter key executing step: converting data in the script parameters into key pressing codes of a corresponding series of number keys, sequentially converting the key pressing codes of the series of number keys into transmitting codes, and spacing parameter key pressing interval time in the process of converting the key pressing codes of the series of number keys into the transmitting codes;
s13, the subsequent key executes the steps: and converting the key pressing code of the confirmation key into a transmitting code.
The conversion of the key code into the transmission code is realized by searching a preset built-in key code table, and the built-in key code table stores the mapping relation between the key code and the corresponding transmission code.
A digital TV remote control channel changing system based on voice recognition comprises a portable terminal, a remote control transmitting device, a voice recognition server and a data server,
the portable terminal is used for receiving the voice input of a user, wherein the voice comprises a channel switching instruction and a channel name, or the voice comprises a channel switching instruction and a program name; sending the voice to a voice recognition server for recognition, and obtaining a recognized instruction text from the voice recognition server; matching the instruction text with the channel name in the channel list or the program name in the program list downloaded from the digital server, thereby obtaining the channel number corresponding to the instruction text; and the channel number reaches the pre-stored channel change remote control script and executes the channel change remote control script; outputting the transmission code to a remote control transmitting device;
the remote control transmitting device receives a transmitting code transmitted by the portable terminal and outputs a transmitting remote control signal to the digital television according to the transmitting code;
the voice recognition server receives the voice output by the portable terminal, converts the voice into an instruction text and sends the instruction text to the portable terminal;
the data server stores a channel list and a program list of each digital television network, wherein the program list comprises a television channel number, a channel name corresponding to the television channel number and a program name of each channel name, and the channel list comprises the television channel number, the channel name corresponding to the television channel number and a plurality of different names of the channel names.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a digital television remote control channel changing method based on voice recognition, which can complete channel switching only according to a channel name or a program name without recording a television channel number when realizing the voice control television channel changing by using functional script data, and provides convenience for a user.
Drawings
Fig. 1 is a flow chart of a digital television remote control channel change method based on voice recognition in embodiment 1;
FIG. 2 is a flowchart of script design for infrared remote control in embodiment 1;
fig. 3 is a schematic diagram of the operation of a digital tv remote control channel switching system based on speech recognition in embodiment 1.
Detailed Description
The present invention will be described in further detail with reference to test examples and specific embodiments. It should be understood that the scope of the above-described subject matter is not limited to the following examples, and any techniques implemented based on the disclosure of the present invention are within the scope of the present invention.
Example 1
A flow chart of a digital television remote control channel switching method based on voice recognition is shown in fig. 1, and the steps include:
firstly, a digital television channel name and channel number corresponding relation table of a digital television network to which the digital television terminal belongs and a program information table of each channel are obtained in advance.
The data stored in the corresponding relation table comprises a television channel number, a channel name corresponding to the television channel number and a plurality of alternative names of the channel name.
For example: the television channel number is "105", the channel name corresponding to the channel number "105" is "CCTV 5 sports", and the alternative names of "CCTV 5 sports" may be: "central sports table", "CCTV 5" and "central five tables".
And generating a program information table correspondingly for each channel, wherein the data stored in each program information table comprises a television channel number, a channel name corresponding to the television channel number, broadcasting time and a plurality of program names, and the program names are sorted according to the time sequence.
For example: the tv channel number is "105", the channel name corresponding to the channel number "105" is "CCTV 5 sports", and the program information table is shown in table 1.
TABLE 1 "CCTV 5 sports" channel program information Table
And secondly, acquiring voice information, wherein the voice information comprises a channel switching command and a channel name needing to be switched to, or the voice information comprises the channel switching command and a program name needing to be switched to, and then converting the voice information into an instruction text, wherein the corresponding instruction text comprises the channel switching command text and the channel name text, or the instruction text comprises the channel switching command text and the program name text.
And thirdly, matching the channel name in the channel name and channel number corresponding relation table or the program name in the program information table with the instruction text, thereby obtaining the channel which the speaker wants to watch (or the channel to which the program wants to watch belongs), and obtaining the channel number of the speaker.
When the channel number corresponding to the instruction text content is searched through the channel name, the method comprises the following steps: and searching whether a channel name or an alias is matched with the instruction text in the channel name and channel number corresponding relation table, if so, extracting the corresponding channel number as an input parameter, and if not, sending a prompt message.
When the channel number corresponding to the instruction text content is searched through the program name, the method comprises the following steps: and searching whether the program name is matched with the instruction text in the program information table, if so, extracting the corresponding channel number as an input parameter, and if not, sending prompt information.
And fourthly, calling the < channel change > script according to the channel change command, and generating a series of transmitting codes by taking the channel number as an input parameter of the < channel change > script.
And searching a script with a script function of changing channels from a plurality of pre-stored digital television remote control scripts, and executing the channel changing script. The script design flow chart for infrared remote control is shown in FIG. 2, and the "channel change" script is designed and completed based on the design flow chart.
Each script function includes corresponding script function data, including:
script parameter script _ parameter: the key operation steps related to the script input parameters are determined.
Number of parameters para _ num: the number of parameters representing the script is generally not more than 3.
Parameter-dependent key number para _ key _ num: indicating how many remote control keys are required for the script to process the script parameters, typically no more than 4.
Parameter key interval para _ key _ interval: the time interval between each parameter key is expressed in 100 milliseconds.
The script function data of the channel changing script comprises the following data: the script parameters are channel numbers and integer data; the number of the parameters is one; the number of the parameter-related keys is multiple; the parameter key interval is 700 ms.
When the channel changing script is executed, the actual execution steps are three steps: a pre-order key execution step, a parameter key execution step and a post-order key execution step.
Executing the preorder key execution step: the key press code of the exit key is converted to a transmission code and then spaced 700ms apart.
Executing the parameter key: since the input parameters are not the key codes of the number keys, the data in the input parameters need to be converted into the key codes of the corresponding number keys. For example, the data "105" in the input parameter is integer data, and is converted into a key code by a BCD code, and the number of numeric keys is 3, that is, the data "105" in the input parameter is mapped to a key code of "1", "0", and "5". Then, the key code of "1" is converted into a transmitting code, after the interval of 700ms, the key code of "0" is converted into a transmitting code, after the interval of 700ms, the remaining key code of "5" is converted into a transmitting code, and finally, the interval of 700 ms.
The subsequent key execution step: in this step, the key code of the confirmation key is converted into the transmission code.
The mapping relation between the key codes and the corresponding transmitting codes is stored in the built-in key code table, and the built-in key code table converts the specific key ID into the corresponding transmitting code. Namely, the key-press code and the transmitting code corresponding to the exit key, the key-press code and the transmitting code corresponding to the number, and the key-press code and the transmitting code of the confirmation key can be found in the built-in key-press code table.
And fifthly, the transmitting code controls the television remote control transmitting device to output a corresponding infrared remote control signal, and the infrared remote control signal controls the television to be converted into a channel number corresponding to the instruction text content.
The converted transmission codes are obtained in sequence through the steps, so that the set top box can be remotely controlled to execute a channel changing function and adjust the watching channel to a 105 channel.
Based on the same conception, the invention also provides a system for remotely changing the channel of the digital television based on the voice recognition, which comprises a portable terminal, a remote control transmitting device, a voice recognition server and a data server. A working schematic diagram of a digital television remote control channel switching system based on voice recognition is shown in fig. 3.
A portable terminal: and receiving the voice input of the user, sending the voice to the voice recognition server for recognition, and obtaining a recognized instruction text. And acquiring a digital television channel name and channel number corresponding relation table of a digital television network to which the local digital television terminal belongs and program forecast information of each channel from the data server, and matching the channel name of the channel list or the program name in the program forecast information with an instruction text acquired by voice recognition to obtain a channel serial number needing channel change. And generates a remote control code instruction matched with the controlled digital television terminal for switching to the channel serial number, and informs a remote control transmitting device to transmit the remote control code through a network or a Bluetooth or other connection mode. The portable terminal can be a mobile phone, a tablet, a smart sound box and other voice input devices.
Remote control transmitting device: the device is placed in a position where the television terminal is able to receive signals transmitted by the device. The method comprises the steps of receiving a remote control code instruction (for example, a channel changing sequence number to a certain channel sequence number aiming at a specific digital television terminal) which is generated by a portable terminal and matched with the digital television terminal through a network or a Bluetooth connection mode, generating a specific remote control signal according to a remote control code format and a remote control code content described by the instruction, and sending the specific remote control signal to the digital television terminal through a remote control signal generator.
A voice recognition server: the server is deployed at a remote end and connected by a portable terminal through a network. And receiving the voice input file sent by the portable terminal, recognizing the voice input file as a text file corresponding to the voice, and returning the text file to the portable terminal.
A data server: the server is deployed at a remote end and connected by a portable terminal through a network. The digital television channel name and channel number corresponding relation table of each digital television network and the program forecast information of each channel are stored. And providing a corresponding digital television channel name and channel number corresponding relation table and program forecast information of each channel to the portable terminal according to the digital television network to which the local digital television terminal provided by the portable terminal belongs. And updating when the channel corresponding relation of the digital television network and the program information change.
Before applying a digital television remote control channel switching method and system based on voice recognition, the application environment needs to be set.
1. Deploying a database server in an internet center machine room, and regularly updating the corresponding relation between the television channel names and the channel serial numbers of each digital television network in each region and the program forecast name information;
2. deploying a voice recognition server in an Internet center machine room, wherein the voice recognition server comprises a voice recognition library and a language word library of all supported languages;
3. in the digital television terminal room, a remote control transmitting device is arranged in the range capable of receiving the remote control signal, and the remote control transmitting device is connected with an internal network;
4. installing or integrating intelligent voice recognition remote controller software to a portable terminal, inputting a television network and a region of a digital television terminal, and automatically acquiring the corresponding relation between the digital television channel name and the channel serial number of the television network in the region and program forecast name information of each channel from a data server; the type of the digital television terminal is input.
One exemplary implementation is:
1. the user inputs the voice channel-changing command to the portable terminal, which comprises the channel-changing command and the name of the channel to be changed;
2. the portable terminal converts the input voice into a voice file and sends the voice file to a voice recognition server through the Internet; the voice recognition server returns the recognized voice text information to the portable terminal;
3. the portable terminal analyzes the voice text to obtain a channel changing instruction and a channel name or a program name to be changed; matching the channel name with each channel name obtained from a data server or matching the program name with the current program name of each channel; after the channel name or the program name is matched, obtaining a channel serial number corresponding to the channel name or the program name;
4. the portable terminal obtains a format conforming to the transmitting code of the digital television terminal according to the terminal type of the digital television and generates transmitting code data conforming to the television terminal by the channel changing instruction and the channel serial number to be changed; transmitting the format of the transmitting code and the data of the transmitting code to a remote transmitting device through an internal network;
5. the remote control transmitting device generates a corresponding remote control signal to transmit according to the transmitting code format and the transmitting code data; and the digital television terminal receives the remote control signal and executes channel switching.
Claims (3)
1. A digital television remote control channel switching method based on voice recognition is characterized by comprising the following steps:
s1, converting the voice into corresponding instruction text, wherein the instruction text comprises a channel switching instruction, and the instruction text comprises a channel name or a program name;
s2, matching the instruction text with the channel name in a channel list or the program name in a program list, so as to obtain the channel number corresponding to the instruction text;
s3, finding a preset channel change remote control script according to the channel change instruction;
s4, executing the channel changing remote control script according to the channel number, wherein the channel changing remote control script generates a remote control transmitting code in the executed process, the remote control transmitting code is converted into a corresponding infrared remote control signal, and the infrared remote control signal controls the television to be converted into the channel number corresponding to the instruction text;
the preset channel switching remote control script comprises channel switching script function data, wherein the channel switching script function data comprises: script parameters, number of keys related to the parameters, interval time of keys of the parameters,
the script parameters are channel numbers and integer data; the number of the parameters is one; the number of the parameter-related keys is multiple; the parameter key interval time is 100ms as a unit;
the parameter-related key number represents the number of key codes for mapping the script parameters;
the parameter key interval time represents the time interval between the generation moments of the remote control transmitting codes;
the data stored in the channel list includes a television channel number, a channel name corresponding to the television channel number, and a plurality of alternative names of the channel name, and the step of obtaining the channel number corresponding to the instruction text includes: searching whether a channel name or an alias is matched with the instruction text in the channel list, if so, extracting a corresponding channel number as a script parameter, and if not, sending prompt information;
the data stored in the program list includes a television channel number, a channel name corresponding to the television channel number, and a program name of each channel name, the program names are sorted according to a time sequence, and the step of obtaining the channel number corresponding to the instruction text includes: searching whether a program name is matched with the instruction text in the program list, if so, extracting a corresponding channel number as a script parameter, and if not, sending prompt information;
the specific steps of step S4 include:
s11, executing the preorder key execution step: converting the key-press code of the exit key into a transmitting code, and then spacing parameter key-press interval time;
s12, executing the parameter key executing step: converting data in the script parameters into key pressing codes of a corresponding series of number keys, sequentially converting the key pressing codes of the series of number keys into transmitting codes, and spacing parameter key pressing interval time in the process of converting the key pressing codes of the series of number keys into the transmitting codes;
s13, the subsequent key executes the steps: and converting the key pressing code of the confirmation key into a transmitting code.
2. The method as claimed in claim 1, wherein the conversion of the key code into the transmission code is performed by searching a preset internal key code table, and the internal key code table stores a mapping relationship between the key code and the corresponding transmission code.
3. A digital television remote control channel changing system based on voice recognition is characterized by comprising a portable terminal, a remote control transmitting device, a voice recognition server and a data server,
the portable terminal is used for receiving voice input of a user, wherein the voice comprises a channel switching instruction and a channel name, or the voice comprises a channel switching instruction and a program name; sending the voice to a voice recognition server for recognition, and obtaining a recognized instruction text from the voice recognition server; matching the instruction text with the channel name in the channel list or the program name in the program list downloaded from the data server, so as to acquire the channel number corresponding to the instruction text; and the channel number reaches a preset channel changing remote control script and the channel changing remote control script is executed; outputting a transmission code to the remote control transmission device;
the remote control transmitting device receives the transmitting code sent by the portable terminal and outputs a transmitting remote control signal to the digital television according to the transmitting code;
the voice recognition server receives the voice output by the portable terminal, converts the voice into an instruction text and sends the instruction text to the portable terminal;
the data server stores a channel list and a program list of each digital television network, wherein the program list comprises a television channel number, a channel name corresponding to the television channel number and a program name of each channel name, and the channel list comprises the television channel number, the channel name corresponding to the television channel number and a plurality of different names of the channel names;
the preset channel switching remote control script comprises channel switching script function data, wherein the channel switching script function data comprises: script parameters, number of keys related to the parameters, interval time of keys of the parameters,
the script parameters are channel numbers and integer data; the number of the parameters is one; the number of the parameter-related keys is multiple; the parameter key interval time is 100ms as a unit;
the parameter-related key number represents the number of key codes for mapping the script parameters;
the parameter key interval time represents the time interval between the generation moments of the remote control transmitting codes;
the data stored in the channel list includes a television channel number, a channel name corresponding to the television channel number, and a plurality of alternative names of the channel name, and the step of obtaining the channel number corresponding to the instruction text includes: searching whether a channel name or an alias is matched with the instruction text in the channel list, if so, extracting a corresponding channel number as a script parameter, and if not, sending prompt information;
the data stored in the program list includes a television channel number, a channel name corresponding to the television channel number, and a program name of each channel name, the program names are sorted according to a time sequence, and the step of obtaining the channel number corresponding to the instruction text includes: searching whether a program name is matched with the instruction text in the program list, if so, extracting a corresponding channel number as a script parameter, and if not, sending prompt information;
the specific steps of step S4 include:
s11, executing the preorder key execution step: converting the key-press code of the exit key into a transmitting code, and then spacing parameter key-press interval time;
s12, executing the parameter key executing step: converting data in the script parameters into key pressing codes of a corresponding series of number keys, sequentially converting the key pressing codes of the series of number keys into transmitting codes, and spacing parameter key pressing interval time in the process of converting the key pressing codes of the series of number keys into the transmitting codes;
s13, the subsequent key executes the steps: and converting the key pressing code of the confirmation key into a transmitting code.
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| CN111787380A (en) * | 2020-07-06 | 2020-10-16 | 四川长虹网络科技有限责任公司 | Voice channel switching control method and device and handheld intelligent terminal |
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