CN114567706B - Public network intercom device jitter removal method and public network intercom system - Google Patents
Public network intercom device jitter removal method and public network intercom system Download PDFInfo
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- CN114567706B CN114567706B CN202210462585.3A CN202210462585A CN114567706B CN 114567706 B CN114567706 B CN 114567706B CN 202210462585 A CN202210462585 A CN 202210462585A CN 114567706 B CN114567706 B CN 114567706B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
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- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention relates to the technical field of communication of the Internet of things, in particular to a public network talkback equipment jitter removing method and a public network talkback system, wherein the public network talkback equipment jitter removing method comprises the following steps: receiving voice data of a user, wherein the voice data comprises text information and/or digital information; judging whether the detection value of the acceleration sensor is larger than a first set threshold value or not, if so, comparing the detection value of the acceleration sensor with a second set threshold value, wherein the first set threshold value is smaller than the second set threshold value; if the detection value of the acceleration sensor is smaller than a second set threshold value, modulating digital information in the voice data, and if the detection value of the acceleration sensor is larger than the second set threshold value, modulating character information in the voice data; the interference level is compensated according to the modulation result. The invention judges the jitter size by detecting the detection value of the acceleration sensor, thereby determining the object of modulation processing and improving the pertinence of modulation processing.
Description
Technical Field
The invention relates to the technical field of communication of the Internet of things, in particular to a public network talkback equipment jitter removal method and a public network talkback system.
Background
Traditional intercom relies on the LAN transmission information, has the signal propagation distance short, easily receives the building to shelter from the scheduling problem, and the use scene is comparatively limited.
A technology for realizing communication by transmitting voice signals through a data channel of a wireless network (wide area network) by a public network interphone. The principle of public network talkback is very similar to the common WeChat voice. Compared with the traditional interphone, the public network interphone has more functions, including group calling, one-to-one single calling, line robbing privilege, voice uploading, video uploading and the like. The real-time and remote talkback of talkback are realized, the difficult problems that the traditional interphone is constrained by transmitting power, wireless sensitivity and the like and the talkback distance is short are solved, and national and even global talkback covered by a mobile network is realized.
In a public network interphone in the internet environment, no matter clutter signals are generated by user operation or the network, the interphone generates level interference, and finally, the interference phenomenon that normal transmission cannot be realized or the transmission can be finished but the opposite party cannot hear the interference is shown. The invention provides a method for removing jitter, aiming at the problem of interference of a public network interphone.
Disclosure of Invention
In view of the above, it is desirable to provide a method for debouncing a public network intercom device and a public network intercom system.
The embodiment of the invention is realized in such a way that a public network talkback equipment debouncing method comprises the following steps:
receiving voice data of a user, wherein the voice data comprises text information and/or digital information;
judging whether the detection value of the acceleration sensor is larger than a first set threshold value or not, if so, comparing the detection value of the acceleration sensor with a second set threshold value, wherein the first set threshold value is smaller than the second set threshold value;
if the detection value of the acceleration sensor is smaller than a second set threshold value, modulating digital information in the voice data, and if the detection value of the acceleration sensor is larger than the second set threshold value, modulating character information in the voice data;
the interference level is compensated according to the modulation result.
In one embodiment, the embodiment of the present invention further provides a public network intercom system, where the public network intercom system includes a first terminal and a second terminal that communicate with each other through a public network;
the first terminal is used for executing the public network intercom device debouncing method in the embodiment of the invention;
the second terminal is used for receiving the talkback information transmitted by the first terminal.
The invention judges the jitter size by detecting the detection value of the acceleration sensor, thereby determining the object of modulation processing and improving the pertinence of modulation processing; the characters and the numbers are respectively processed aiming at different coding modes of the characters and the numbers, so that unnecessary modulation operation is reduced, and the efficiency is improved.
Drawings
Fig. 1 is a flowchart of a method for dejittering a public network intercom device according to an embodiment;
FIG. 2 is a block diagram showing an internal configuration of a computer device according to an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
It will be understood that, as used herein, the terms "first," "second," and the like may be used herein to describe various elements, but these elements should not be limited by these terms unless otherwise specified. These terms are only used to distinguish one element from another. For example, a first xx script may be referred to as a second xx script, and similarly, a second xx script may be referred to as a first xx script, without departing from the scope of the present application.
As shown in fig. 1, in an embodiment, the present invention provides a method for debouncing a public network intercom device, which may specifically include the following steps:
receiving voice data of a user, wherein the voice data comprises text information and/or digital information;
judging whether the detection value of the acceleration sensor is larger than a first set threshold value or not, if so, comparing the detection value of the acceleration sensor with a second set threshold value, wherein the first set threshold value is smaller than the second set threshold value;
if the detection value of the acceleration sensor is smaller than a second set threshold value, modulating digital information in the voice data, and if the detection value of the acceleration sensor is larger than the second set threshold value, modulating character information in the voice data;
the interference level is compensated according to the modulation result.
In this embodiment, it can be understood that the microphone used for receiving the voice data of the user converts the voice information of the user into an electrical signal through the microphone, the electrical signal at this time varies with the variation of the voice, and is an analog quantity, and before processing and transmission, the electrical signal needs to be converted into a digital quantity, and 1 and 0 are represented by high and low levels, so as to digitize the voice information, thereby facilitating chip processing and chip-to-chip transmission. In this embodiment, the specific scene is a case where the voice data includes text information and digital information, and when the two kinds of data information exist at the same time, how to divide the processing modes of the two kinds of data is the key point of the present invention.
In the present embodiment, a first set threshold and a second set threshold are preset for defining the magnitude of the detection value of the acceleration sensor, and for example, taking the detection range of the acceleration sensor as 0-100, the first set threshold may be set to 30, and the second set threshold may be set to 50, and the first and second set thresholds may be proportionally set according to the specific value of the detection range of the acceleration sensor. The first set threshold is set to reduce false recognition, and has a function of preventing false triggering as a start threshold. Setting the second set threshold to 50, on the one hand, can reserve enough detection range for high detection value, on the other hand, setting to 50 can already effectively divide low frequency jitter and high frequency jitter, and can effectively distinguish general interference from interference with large influence.
In this embodiment, if the detection value of the acceleration sensor is greater than the first set threshold and smaller than the second set threshold, it indicates that there is jitter but the jitter is small, and the influence on the encoded simpler digital information is obvious, so the digital information is modulated; if the detection value of the acceleration sensor is larger than the second set threshold value, the jitter exists and is obvious, the influence on the coded complex character information is large, and the character information needs to be modulated.
In this embodiment, the modulation processing may enhance the digital anti-interference capability, but at the same time, the influence caused by the interference needs to be eliminated, and the present invention further compensates the level according to the result of the modulation processing.
The invention judges the jitter size by detecting the detection value of the acceleration sensor, thereby determining the object of modulation processing and improving the pertinence of modulation processing; the characters and the numbers are respectively processed aiming at different coding modes of the characters and the numbers, so that unnecessary modulation operation is reduced, and the efficiency is improved.
Preferably, the receiving voice data of the user further comprises:
calling an analog-to-digital converter to convert the voice data into a digital signal;
performing text conversion on the digital signal to obtain a voice text containing character information and/or digital information;
separating the character information and the number information in the voice text.
In this embodiment, after receiving the user voice data, the voice data needs to be converted to obtain a digital signal, and a text content is obtained by any existing voice recognition algorithm, and the text information and the digital information of the text content are separated and then processed respectively.
Preferably, the modulating digital information in the voice data includes:
converting the digital information into unicode codes;
reading the digit of the converted digital information and recording the digit as M;
and shifting the converted digital information to the left by M bits, and performing logical OR operation on the obtained value and the converted digital information.
In the embodiment, after unicode coding is adopted for digital information, the result is simpler; the invention obtains M by recording the digit of the result after coding, obtains coding information with two sections of repeated fields by shifting the coding result to the left by M (the original position after the left shift is complemented by 0) and taking logical OR operation with the converted result, realizes the enhancement of data, and has better resistance to low-frequency interference when the interference is generated so as to keep the validity of the data.
Preferably, the logical or operation further comprises:
an identification bit M is added to the last bit of the value obtained by the logical OR operation.
In this embodiment, further, by attaching the flag bit M to the last bit of the operation result, it is convenient to receive the decoding process after the opposite end receives the data, and the decoding process belongs to the inverse operation of the method of the present invention, which is not described herein again.
Preferably, the modulating text information in the voice data includes:
converting text information into unicode codes;
reading the digit of the converted text information and recording the digit as N;
and shifting the converted text information to the left by N bits twice, and performing logical OR operation on the obtained value and the converted text information.
In the embodiment, after unicode coding is adopted for text information, the result is more complex; according to the invention, N is obtained by recording the bit number of the result after coding, two left shift results (one intermediate result after the N bits are shifted left and the other final result after the 2N bits are shifted left) are obtained by shifting the coding result to the left by N bits twice (the original position after the left shift is complemented by 0), and the two obtained results and the converted result are subjected to logical OR operation to obtain the coding information with three sections of repeated fields, so that the data enhancement is realized.
Preferably, the logical or operation further includes:
the last bit of the logical or operation is added with a flag bit 2N.
In this embodiment, further, by adding the identification bit 2N to the last bit of the operation result, it is convenient to receive the decoding process after the opposite end receives the data, and the decoding process belongs to the inverse operation of the method of the present invention, and the present invention is not described herein again.
Preferably, the compensating for the interference level according to the modulation result includes, for the digital information:
outputting a modulation result and reading a level value of an output pin;
judging whether the modulated result comprises two sections of completely same circulating structures and an identification bit;
if not, reading the high level and the low level of the data output pin;
for the high level, if the value of the high level is larger than 7V, a compensation low level is attached when the high level is output, so that the output voltage is between 4V and 7V;
if the value of the low level is less than 0.7V, a compensation high level is added when the low level is output, so that the output voltage is between 0.7V and 3.7V.
In the embodiment, the invention provides a specific processing method for the case of interference. It should be noted that, the present invention mainly aims at the case of the co-directional interference, that is, after the high level generates the high level interference and the low level interference occurs when the low level occurs, and the co-directional interference occupies 80% of the actual situation, for the non-directional interference, the processing method of the present invention may be referred to for processing, and the present invention is not described again.
Preferably, after the adjusting the level, the method further comprises:
detecting the detection value of the acceleration sensor, and if the detection value of the acceleration sensor is greater than a first set threshold value and smaller than a second set threshold value, outputting the modulated result again according to the determined compensation low level and/or compensation high level;
otherwise, outputting the modulated result at a default high level and/or low level.
In this embodiment, as another optional specific implementation manner, the value of the output compensation level is proportionally determined according to the value of the acceleration sensor, for example, the detection range of the acceleration sensor is 0-100, the current detection value is 40, that is, the proportion is 0.4, and the absolute value of the output compensation level is 4 × 0.4=1.6V, where 4V is the interval width of the high level or the low level. Wherein the compensation low level is negative and the compensation high level is positive.
Preferably, the compensating the interference level according to the modulation result includes, for the text information:
outputting the modulation result and reading the level value of the output pin;
judging whether the modulated result comprises three sections of completely same circulating structures and an identification bit;
if not, reading the high level and the low level of the data output pin;
for the high level, if the value of the high level is larger than 7V, a compensation low level is attached when the high level is output, so that the output voltage is between 4V and 7V;
if the value of the low level is less than 0.7V, a compensation high level is added when the low level is output, so that the output voltage is between 0.7V and 3.7V.
In the embodiment, the invention provides a specific processing method for the case of interference. It should be noted that, the present invention mainly aims at the case of the co-directional interference, that is, after the high level generates the high level interference and the low level interference occurs when the low level occurs, and the co-directional interference occupies 80% of the actual situation, for the non-directional interference, the processing method of the present invention may be referred to for processing, and the present invention is not described again.
Preferably, after the adjusting the level, the method further comprises:
detecting the detection value of the acceleration sensor, and if the detection value of the acceleration sensor is larger than a second set threshold value, outputting the modulated result again according to the determined compensation low level and/or compensation high level;
otherwise, outputting the modulated result at a default high level and/or low level.
The embodiment of the invention also provides a public network intercom system, which comprises a first terminal and a second terminal which are in intercommunication communication through the public network;
the first terminal is used for executing the public network intercom device debouncing method in the embodiment of the invention;
the second terminal is used for receiving the talkback information transmitted by the first terminal.
In the embodiment of the present invention, it can be understood that roles of the first terminal and the second terminal may be interchanged in different communication processes, and the public network intercom device debouncing method provided by the present invention may be respectively executed to implement suppression or elimination of jitter, and for an explanation of a specific process, refer to the foregoing description about the method part.
In this embodiment, as another optional specific implementation manner, the value of the output compensation level is proportionally determined according to the value of the acceleration sensor, for example, the detection range of the acceleration sensor is 0-100, the current detection value is 70, that is, the proportion is 0.7, and the absolute value of the output compensation level is 4 × 0.7=2.8V, where 4V is the interval width of the high level or the low level. Wherein the compensation low level is negative and the compensation high level is positive.
FIG. 2 is a diagram that illustrates an internal structure of the computer device in one embodiment. As shown in fig. 2, the computer apparatus includes a processor, a memory, a network interface, an input device, and a display screen connected through a system bus. The memory comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium of the computer device stores an operating system and also stores a computer program, and when the computer program is executed by the processor, the computer program can enable the processor to realize the method for removing the jitter of the public network intercom device provided by the embodiment of the invention. The internal memory may also store a computer program, and when the computer program is executed by the processor, the computer program may enable the processor to execute the method for debouncing a public network intercom device according to an embodiment of the present invention. The display screen of the computer equipment can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer equipment can be a touch layer covered on the display screen, a key, a track ball or a touch pad arranged on a shell of the computer equipment, an external keyboard, a touch pad or a mouse and the like.
Those skilled in the art will appreciate that the architecture shown in fig. 2 is merely a block diagram of some of the structures associated with the disclosed aspects and is not intended to limit the computing devices to which the disclosed aspects apply, as particular computing devices may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.
In one embodiment, a computer device is proposed, the computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the following steps when executing the computer program:
receiving voice data of a user, wherein the voice data comprises text information and/or digital information;
judging whether the detection value of the acceleration sensor is larger than a first set threshold value or not, if so, comparing the detection value of the acceleration sensor with a second set threshold value, wherein the first set threshold value is smaller than the second set threshold value;
if the detection value of the acceleration sensor is smaller than a second set threshold value, modulating digital information in the voice data, and if the detection value of the acceleration sensor is larger than the second set threshold value, modulating character information in the voice data;
the interference level is compensated according to the modulation result.
In one embodiment, a computer-readable storage medium is provided, having stored thereon a computer program which, when executed by a processor, causes the processor to perform the steps of:
receiving voice data of a user, wherein the voice data comprises text information and/or digital information;
judging whether the detection value of the acceleration sensor is larger than a first set threshold value or not, if so, comparing the detection value of the acceleration sensor with a second set threshold value, wherein the first set threshold value is smaller than the second set threshold value;
if the detection value of the acceleration sensor is smaller than a second set threshold value, modulating digital information in the voice data, and if the detection value of the acceleration sensor is larger than the second set threshold value, modulating character information in the voice data;
and compensating the interference level according to the modulation result.
It should be understood that, although the steps in the flowcharts of the embodiments of the present invention are shown in sequence as indicated by the arrows, the steps are not necessarily performed in sequence as indicated by the arrows. The steps are not limited to being performed in the exact order illustrated and, unless explicitly stated herein, may be performed in other orders. Moreover, at least a portion of steps in various embodiments may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performance of the sub-steps or stages is not necessarily sequential, but may be performed alternately or alternatingly with other steps or at least a portion of sub-steps or stages of other steps.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a non-volatile computer-readable storage medium, and can include the processes of the embodiments of the methods described above when the program is executed. Any reference to memory, storage, database or other medium used in the embodiments provided herein can include non-volatile and/or volatile memory. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), synchronous Link (Synchlink) DRAM (SLDRAM), Rambus (Rambus) direct RAM (RDRAM), direct bused dynamic RAM (DRDRAM), and bused dynamic RAM (RDRAM).
All possible combinations of the technical features of the above embodiments may not be described for the sake of brevity, but should be considered as within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is specific and detailed, but not to be understood as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (11)
1. A public network talkback equipment debouncing method is characterized by comprising the following steps:
receiving voice data of a user, wherein the voice data comprises text information and/or digital information;
judging whether the detection value of the acceleration sensor is larger than a first set threshold value or not, if so, comparing the detection value of the acceleration sensor with a second set threshold value, wherein the first set threshold value is smaller than the second set threshold value;
if the detection value of the acceleration sensor is smaller than a second set threshold value, modulating digital information in the voice data, and if the detection value of the acceleration sensor is larger than the second set threshold value, modulating character information in the voice data;
and compensating the interference level according to the modulation result.
2. The method for debouncing a public network intercom device according to claim 1, wherein said receiving voice data of the user further comprises:
calling an analog-to-digital converter to convert the voice data into a digital signal;
performing text conversion on the digital signal to obtain a voice text containing character information and/or digital information;
separating the character information and the number information in the voice text.
3. The method for debouncing a public network intercom device as in claim 1, wherein modulating digital information in the voice data comprises:
converting the digital information into unicode codes;
reading the digit of the converted digital information, and recording as M;
and shifting the converted digital information to the left by M bits, and performing logical OR operation on the obtained value and the converted digital information.
4. The method for debouncing a public network intercom device according to claim 3, further comprising, after the logical OR operation:
the last bit of the logical or operation is appended with an identification bit M.
5. The method for debouncing a public network intercom device as in claim 1, wherein modulating text information in the voice data comprises:
converting text information into unicode codes;
reading the digit of the converted text information, and recording as N;
and shifting the converted text information to the left by N bits twice, and performing logical OR operation on the obtained value and the converted text information.
6. The method for debouncing a public network intercom device according to claim 5, further comprising, after the logical OR operation:
the last bit of the logical or operation is added with a flag bit 2N.
7. The method for debouncing a public network intercom device according to claim 1, wherein the compensating for the interference level according to the modulation result comprises, for digital information:
outputting the modulation result and reading the level value of the output pin;
judging whether the modulated result comprises two sections of completely same circulating structures and an identification bit;
if not, reading the high level and the low level of the data output pin;
for the high level, if the value of the high level is larger than 7V, a compensation low level is attached when the high level is output, so that the output voltage is between 4V and 7V;
if the low level is less than 0.7V, a compensation high level is added when the low level is output, so that the output voltage is between 0.7V and 3.7V.
8. The method for debouncing a public network intercom device according to claim 7, further comprising, after adjusting the level:
detecting the detection value of the acceleration sensor, and if the detection value of the acceleration sensor is larger than a first set threshold and smaller than a second set threshold, re-outputting the modulated result according to the determined compensation low level and/or compensation high level;
otherwise, outputting the modulated result at a default high level and/or low level.
9. The method for debouncing a public network intercom device according to claim 1, wherein the compensating for the interference level according to the modulation result comprises, for text information:
outputting a modulation result and reading a level value of an output pin;
judging whether the modulated result comprises three sections of completely same circulating structures and an identification bit;
if not, reading the high level and the low level of the data output pin;
for the high level, if the value of the high level is larger than 7V, a compensation low level is attached when the high level is output, so that the output voltage is between 4V and 7V;
if the low level is less than 0.7V, a compensation high level is added when the low level is output, so that the output voltage is between 0.7V and 3.7V.
10. The method for debouncing a public network intercom device according to claim 9, further comprising, after adjusting the level:
detecting the detection value of the acceleration sensor, and if the detection value of the acceleration sensor is larger than a second set threshold value, outputting the modulated result again according to the determined compensation low level and/or compensation high level;
otherwise, outputting the modulated result at a default high level and/or low level.
11. A public network intercom system is characterized by comprising a first terminal and a second terminal which are in intercom communication with each other through a public network;
the first terminal is used for executing the public network intercom device debouncing method according to any one of claims 1 to 10;
the second terminal is used for receiving the talkback information transmitted by the first terminal.
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| US20070112571A1 (en) * | 2005-11-11 | 2007-05-17 | Murugappan Thirugnana | Speech recognition at a mobile terminal |
| CN102307271A (en) * | 2011-05-05 | 2012-01-04 | 上海博超科技有限公司 | Network digital integrated talkback system and transmission method thereof |
| CN102780667A (en) * | 2011-05-13 | 2012-11-14 | 北京联拓恒芯科技发展有限公司 | Method and equipment for modulating physical layer of digital interphone |
| CN102547487B (en) * | 2012-03-13 | 2014-03-26 | 耿直 | Private network talkback method and private network talkback transmission system based on wireless local area network |
| CN103428175A (en) * | 2012-05-18 | 2013-12-04 | 江苏真云计算科技有限公司 | Real-time voice intercom system based on heterogeneous mobile IP networks |
| CN204350304U (en) * | 2015-01-23 | 2015-05-20 | 北京德百顺科技有限公司 | Digital common-frequency broadcasting intercom system |
| CN107769811B (en) * | 2017-12-05 | 2023-11-24 | 洪泉益 | Whole-network-communication and digital-analog compatible integrated interphone |
| WO2021157764A1 (en) * | 2020-02-07 | 2021-08-12 | ㈜알고코리아 | Mobile terminal-integrated radio, and radio system and method using same |
| CN112492112B (en) * | 2020-11-19 | 2022-03-18 | 睿云联(厦门)网络通讯技术有限公司 | Echo eliminating method and device based on intercom system |
| CN112995933B (en) * | 2021-04-27 | 2021-08-17 | 广州慧睿思通科技股份有限公司 | Interphone, communication method thereof, electronic equipment and storage medium |
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