CN109787700A - A kind of public's emergency information dissemination method and system - Google Patents
A kind of public's emergency information dissemination method and system Download PDFInfo
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- CN109787700A CN109787700A CN201910082320.9A CN201910082320A CN109787700A CN 109787700 A CN109787700 A CN 109787700A CN 201910082320 A CN201910082320 A CN 201910082320A CN 109787700 A CN109787700 A CN 109787700A
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Abstract
The invention discloses a kind of public's emergency information dissemination method and systems, emergency information is generated by issue terminal, and the emergency information is carried out to be transferred to broadcast transmitter after coded modulation generates base-band audio signal, it include alert notification information and target user's information in emergency information, base-band audio signal is modulated in objective emission frequency by broadcast transmitter, is formed broadcast signal transmission and is gone out；Receiving end obtains alert notification information and target user's information to broadcast singal progress demodulating and decoding after receiving the broadcast singal, and target user's information is matched with the information of user itself, alarm sounds are carried out to user according to alert notification information in successful match, so the scheme provided through the invention, the receiving end of user information successful match can carry out alarm sounds to user, the accuracy of emergency information publication is improved, the accurate publication of emergency information is realized.
Description
Technical field
The present invention relates to fields of communication technology, more specifically to a kind of public's emergency information dissemination method and system.
Background technique
Currently, China is in the high-incidence period of Emergent Public Events.On the one hand, natural calamity type is more, frequency is high, loss
Seriously.On the other hand, China is in socio-economic development period, and various contradictions highlight, Yi Fasheng social groups event, influences
Social stability.
Public emergent information issuing system is that in emergency circumstances government issues disaster alarm, evacuation commander, carriage towards the public
By the important means of emergency informations such as dredging, sometimes even the only resource.The public is carried out in emergency event field regions to answer
Anxious information publication, plays an important role to rescue command, social stability.Such as in intensive cell, vehicle pass-through peak section, subway
The crowd massings regions such as (high-speed rail) station, when fire, traffic accident occurs, have a fist fight etc. unexpected incidents when, it is necessary in time to the public
Issue public emergent information, including the condition of a disaster, event truth, rescue method, evacuation route, disposition progress etc..Public's emergency information
Delivery system directly serves in the disaster alarm and rescue command at emergency event scene, is government to disaster common people's emergency management and rescue
" lifeline " becomes the key for restricting constitutional crisis reply and disposing capacity.But existing public emergent information issuing system
There is blindness when issuing public's emergency information, for example, some users in overall safety region can may also receive
Emergency information is likely to result in fear to this certain customers, also more wasteful resource.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of public's emergency information dissemination method and system.
To achieve the above object, specific technical solution of the present invention is as follows:
A kind of public's emergency information dissemination method is applied to public's emergency information delivery system, public's emergency information
Delivery system includes transmitting terminal and receiving end, and the transmitting terminal includes issue terminal and broadcast transmitter, which comprises
S11: the issue terminal generates emergency information, and carries out coded modulation to the emergency information and generate base-band audio
It is transferred to the broadcast transmitter after signal, includes alert notification information and target user's information in the emergency information；
S12: the base-band audio signal is modulated to objective emission transmitted on frequencies and gone out by the broadcast transmitter；
S13: the receiving end receives the broadcast singal of the broadcast transmitter transmitting；
S14: the receiving end carries out demodulating and decoding to the broadcast singal and obtains the alert notification information and described
Target user's information, and target user's information is matched with the information of user itself on the receiving end, it is matching
Alarm sounds are carried out to user according to the alert notification information when success.
Further, the receiving end includes the back splint battery and intelligent terminal for being built-in with broadcasting receiver, step S13
Include:
The broadcasting receiver receives the broadcast singal, and the broadcast singal is sent to the intelligent terminal；
Step S14 includes:
The intelligent terminal carries out demodulating and decoding to the broadcast singal and obtains the alert notification information and target use
Family information.
Further, the alert notification information include alert level information, alarm number information, transmit messages unit information with
And at least one of event address information, the early warning target user information include target user handset number and target user
At least one of geographical location information.
Further, step S11 includes:
S21: the issue terminal encodes the emergency information by ASCII character to obtain the first coding result；
S22: FEC is carried out to first coding result and encodes to obtain the second coding result；
S23: an interleaving treatment is carried out again after carrying out scrambling processing to second coding result；
S24: MFSK is carried out to the signal after the interleaving treatment of position and modulates to obtain base-band audio signal.
Further, step S14 includes:
S31: the receiving end is sampled to obtain sampled data to the broadcast singal received；
S32: piecemeal is carried out to the sampled data and handles to obtain multiple data blocks, and does FFT change for each data block
Get the digital information of respective frequencies in return；
S33: scramble process is carried out after being deinterleaved to the digital information again；
S34: fec decoder is carried out to the digital information after scramble process and obtains the first decoding result；
S35: processing is decoded on the basis of first decoding result by ASCII character and obtains believing with the emergency
Cease corresponding text information.
Further, step S31 includes:
The receiving end carries out 16 times of over-sampling to the broadcast singal.
Further, after step S34 further include:
S341: decoded positions deviation is determined according to first decoding result；
S342: the phase offset of corresponding spectrum is determined according to the decoded positions deviation, and is estimated according to the phase offset
The time migration for counting the position FFT, feeds back to step S32 for the time migration, dynamically to adjust the position FFT.
Further, including transmitting terminal and receiving end, the transmitting terminal includes issue terminal and broadcast transmitter, wherein；
The issue terminal carries out coded modulation to the emergency information and generates base-band audio for generating emergency information
It is transferred to the broadcast transmitter after signal, includes alert notification information and target user's information in the emergency information；
The broadcast transmitter is gone out for the base-band audio signal to be modulated to objective emission transmitted on frequencies；
The receiving end is used to receive the broadcast singal of broadcast transmitter transmitting, and for the broadcast singal into
Row demodulating and decoding obtains the alert notification information and target user's information, and by target user's information and the reception
The information of user itself matches on end, carries out alarm to user according to the alert notification information in successful match and mentions
Show.
Further, the receiving end includes being built-in with the back splint battery of broadcasting receiver and by USB interface and institute
The intelligent terminal of back splint battery connection is stated, the broadcasting receiver is for receiving the broadcast singal, and by the broadcast singal
It is sent to the intelligent terminal by the USB interface, the intelligent terminal is used to carry out demodulating and decoding to the broadcast singal
The alert notification information and target user's information are obtained, the back splint battery is also used to through the USB interface to described
Intelligent terminal charging.
Further, the issue terminal is for encoding the emergency information by ASCII character to obtain the first volume
Code encodes to obtain the second coding result as a result, carrying out FEC to first coding result, adds to second coding result
An interleaving treatment is carried out again after disturbing processing, and MFSK is carried out to the signal after the interleaving treatment of position and modulates to obtain base-band audio signal；
The receiving end for being sampled to obtain sampled data to the broadcast singal received, to the sampled data into
Row piecemeal handles to obtain multiple data blocks, and does FFT transform for each data block and obtain the digital information of respective frequencies, to institute
It states and carries out scramble process after digital information is deinterleaved again, fec decoder is carried out to the digital information after scramble process and is obtained
First decoding result is decoded processing on the basis of first decoding result by ASCII character and obtained and the emergency
The corresponding text information of information.
Public's emergency information dissemination method provided by the invention and system generate emergency information by issue terminal, and to this
Emergency information carries out being transferred to broadcast transmitter after coded modulation generates base-band audio signal, wherein includes police in emergency information
Base-band audio signal is modulated to objective emission transmitted on frequencies and gone out by report notification information and target user's information, broadcast transmitter
It goes, receiving end carries out demodulating and decoding to the broadcast singal received and obtains alert notification information and target user's information, and will
Target user's information is matched with the information of itself, is carried out early warning to user according to alert notification information in successful match and is mentioned
Show, so the scheme provided through the invention, the receiving end of user information successful match can carry out alarm sounds to user, be promoted
The accuracy of emergency information publication, realizes the accurate publication of emergency information.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples, in attached drawing:
Fig. 1 is the flow diagram of public's emergency information dissemination method provided in an embodiment of the present invention；
Fig. 2 is the flow diagram that issue terminal provided in an embodiment of the present invention carries out coded modulation to emergency information；
Fig. 3 is the first pass schematic diagram that receiving end provided in an embodiment of the present invention carries out demodulating and decoding to broadcast singal；
Fig. 4 is the second procedure schematic diagram that receiving end provided in an embodiment of the present invention carries out demodulating and decoding to broadcast singal；
Fig. 5 is the structural schematic diagram of public's emergency information delivery system provided in an embodiment of the present invention；
Fig. 6 is the structural schematic diagram of receiving end provided in an embodiment of the present invention.
Specific embodiment
In order to keep the technical problem to be solved in the present invention, technical solution and advantage clearer, below in conjunction with attached drawing and
Specific embodiment is described in detail, it should be understood that the specific embodiments described herein are merely illustrative of the present invention, not
For limiting the present invention.
The present embodiment provides a kind of public's emergency information dissemination methods, are applied to public's emergency information delivery system, wherein
Public's emergency information delivery system includes transmitting terminal and receiving end, and the transmitting terminal includes issue terminal and broadcast transmitter, public affairs
The specific structure of many emergency information delivery systems will hereinafter be specifically introduced, and issue first to public's emergency information here
Method is illustrated, specific shown in Figure 1, comprising:
S11: issue terminal generates emergency information, and pass after coded modulation generates base-band audio signal to emergency information
It is defeated by broadcast transmitter, includes alert notification information and target user's information in emergency information.
Base-band audio signal can be transferred to broadcast transmitter, this reality by tone frequency channel wire by the issue terminal in the present embodiment
Apply the alert notification information in example include but be not limited to alert level information, alarm number information, transmit messages unit information and
At least one of event address information, target user's information include but are not limited to target user handset number and target user
At least one of location information.
S12: base-band audio signal is modulated to objective emission transmitted on frequencies and gone out by broadcast transmitter.
Post staff can be configured the tranmitting frequency of the broadcast transmitter in the present embodiment, certain broadcast transmitter
Base-band audio signal can be sent based on pre-set tranmitting frequency.
S13: receiving end receives the broadcast singal of broadcast transmitter transmitting.
S14: receiving end carries out demodulating and decoding to broadcast singal and obtains alert notification information and target user's information, and will
Target user's information is matched with the information of itself, is carried out alarm to user according to alert notification information in successful match and is mentioned
Show.
In a kind of example, receiving end can be the intelligent terminal of incorporated broadcast receiver, in this way, the intelligent terminal can
Directly to receive broadcast singal, demodulating and decoding then is carried out to the broadcast singal received, it should be noted that intelligent terminal can
User being prompted with being displayed on the screen alert notification information, user can also be carried out by way of voice broadcast
Prompt.
In another example, receiving end includes the back splint battery and intelligent terminal for being built-in with broadcasting receiver, should
Back splint battery can be connect with intelligent terminal by USB interface, and the broadcasting receiver in this example can be FM receiver, extensively
Receiver is broadcast after receiving broadcast singal, broadcast singal can be transferred to by intelligent terminal by the USB interface, then by intelligence
Terminal carries out demodulating and decoding, is at this time substantially to receive broadcast singal by broadcasting receiver in step S13, and by by broadcast reception
The broadcast singal is sent to intelligent terminal by machine, and step S14 is substantially to carry out demodulating and decoding to broadcast singal by intelligent terminal
Alert notification information and target user's information are obtained, the scheme provided by this example is communicated in intelligent terminal and interrupted completely
In the case where, still reliable emergency information can be provided to emergency event field regions mobile phone user by broadcast transmitter send out
Cloth service, the system not only can carry out individual calling to designated terminal user, but also can be into event center region specified range
User group busy that solving traditional emergency information delivery system release information has that blindness, accuracy is poor, survivability
Weak problem.
It should be noted that the issue terminal in the present embodiment can be automatic according to event burst position and event content
Emergency information is generated, specifically, issue terminal can generate alert notice information according to event content, and according to event burst position
The target user position for generating and needing to carry out alert notification is set, receiving end obtains needing to carry out alert notification in demodulated decoding
Target user position after the available position itself being currently located, then target user position is currently located with itself
Position is matched, if successful match, is prompted according to alert notice information user, if matching is unsuccessful, is not mentioned
Show.In another example, issue terminal can generate target user handset number according to event burst position, specifically, hair
Cloth terminal inputs the cell-phone number of target user when editing emergency information, and receiving end obtains being warned in demodulated decoding
Itself available phone number after the target user handset number of notice is reported, if the phone number of itself and target user's hand
The success of machine numbers match, then prompt user according to alert notice information, if unsuccessful, do not prompt.
For step S11, specific sub-step be may refer to shown in Fig. 2, comprising:
S21: issue terminal encodes emergency information by ASCII character to obtain the first coding result.
S22: FEC is carried out to the first coding result and encodes to obtain the second coding result.
S23: an interleaving treatment is carried out again after carrying out scrambling processing to the second coding result.
S24: MFSK is carried out to the signal after the interleaving treatment of position and modulates to obtain base-band audio signal.
Issue terminal encodes the corresponding original character information of emergency information by ASCII character, herein main
Effect is the two-stage system data being converted to English character and partial symbols convenient for computer disposal, and then 5 characters are one group,
Walsh transformation namely FEC coding are carried out, by Data expansion at the data of 64bit, the main purpose done so is to add
Then redundancy carries out scrambling to 64bit data and position interleaving treatment, main purpose is to keep away to realize forward error correction
The problem of exempting from the performance decline that even zero bring continuous symbol generates, the frame ultimately generated is carried out in a manner of every mono- symbol of 5bit
MFSK coding is to obtain base-band audio signal.
MFSK modulation system indicates corresponding digital signal by frequency, the base-band audio letter that this modulation system generates
Number be made of 32 Frequency points, so that bandwidth be made to be limited within 1KHz, can under -10dB signal-to-noise ratio environment reliably working,
Exchange high reliability and complicated landform covering power for using low transmission rate, the present embodiment uses 20W transmission power
The reliable covering for realizing urban environment 3Km range, efficiently solves existing broadcast transmission techniques complex environment under low power condition
The limited problem of covering power.In addition, the bandwidth due to base-band audio signal is limited in 1KHz, and FM baseband signal with lead
Spectral slots between frequency signal are 4KHz, and therefore, public's emergency information dissemination method that this present embodiment proposes completely will not
The normal voice broadcast service of city f-m broadcast station is interfered, emergency letter can be completed while transmitting normal broadcast voice signal
Breath publication, is not only greatly saved valuable frequency resource, while also avoiding individually planning new emergency information publication work frequency
The problem of intercity frequency coordination caused by rate.
For step S14, specific sub-step be may refer to shown in Fig. 3, comprising:
S31: receiving end is sampled to obtain sampled data to the broadcast singal received.
In order to realize more accurate frame synchronization and improve the resolution ratio of signal spectrum, the receiving end in the present embodiment
Over-sampling can be carried out to broadcast singal, specifically, 16 times of over-sampling can be carried out.
S32: piecemeal is carried out to sampled data and handles to obtain multiple data blocks, and does FFT transform for each data block and obtains
To the digital information of respective frequencies information.
Step S32 is substantially the inverse process of step S24, obtains digital information by demodulation.
S33: scramble process is carried out after being deinterleaved to digital information again.
S34: fec decoder is carried out to the digital information after scramble process and obtains the first decoding result.
S35: be decoded on the basis of the first decoding result by ASCII character processing obtain it is corresponding with emergency information
Text information.
It is shown in Figure 4, in some embodiments, after step S34 can with the following steps are included:
S341: decoded positions deviation is determined according to the first decoding result.
S342: the phase offset of corresponding spectrum is determined according to decoded positions deviation, and FFT is estimated according to the phase offset
The time migration is fed back to step S32 by the time migration of position, dynamically to adjust the position FFT.
So through the above steps, more accurate positioning can be obtained.
Receiving end in the present embodiment obtains sampled data by over-sampling, and utilizes the dynamic adjustment point of fec decoder result
Block position, it is hereby achieved that more accurately positioning.
Shown in Figure 5, the present embodiment also provides a kind of public's emergency information delivery system, including transmitting terminal 51 and connects
Receiving end 52, wherein transmitting terminal 51 includes issue terminal 510 and broadcast transmitter 511, and issue terminal 510 is for generating emergency letter
Breath, and emergency information is carried out to be transferred to broadcast transmitter 511 after coded modulation generates base-band audio signal, it is wrapped in emergency information
Alert notification information and target user's information are included, broadcast transmitter 511 is used to base-band audio signal being modulated to objective emission
Transmitted on frequencies is gone out, receiving end 52 be used for receive broadcast transmitter 511 transmitting broadcast singal, and for broadcast singal into
Row demodulating and decoding obtains alert notification information and target user's information, and target user's information and the information of itself are carried out
Match, alarm sounds are carried out to user according to alert notification information in successful match.
In a kind of example, receiving end 52 can be the intelligent terminal for being built-in with broadcasting receiver.
In another example, the structure of receiving end 52 be may refer to shown in Fig. 6, and receiving end 52 connects including incorporated broadcast
The back splint battery 521 of receipts machine and the intelligent terminal 522 being connect by USB interface with back splint battery, broadcasting receiver is for connecing
The broadcast singal is received, and broadcast singal is sent to intelligent terminal by the USB interface, intelligent terminal is used to believe broadcast
Number carry out demodulating and decoding obtain the alert notification information and target user's information, back splint battery is also used to connect by the USB
Mouth charges to intelligent terminal.
Specifically, issue terminal 510 is used to be encoded to obtain the first coding result to emergency information by ASCII character,
FEC is carried out to the first coding result to encode to obtain the second coding result, is carried out again after carrying out scrambling processing to the second coding result
Position interleaving treatment carries out MFSK to the signal after the interleaving treatment of position and modulates to obtain base-band audio signal, receiving end 52 for pair
The broadcast singal received is sampled to obtain sampled data, is carried out piecemeal to sampled data and is handled to obtain multiple data blocks, and
Do FFT transform for each data block and obtain the digital information of respective frequencies information, after being deinterleaved to digital information again into
Row scramble process carries out fec decoder to the digital information after scramble process and obtains the first decoding result, existed by ASCII character
It is decoded processing on the basis of first decoding result and obtains text information corresponding with emergency information.
It is noted that herein, the terms "include", "comprise" or its any other variant are intended to non-exclusive
Property include so that include a series of elements process, method, article or device not only include those elements, but also
Further include other elements that are not explicitly listed, or further include for this process, method, article or device it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that wanted including this
There is also other identical elements in the process, method of element, article or device.
The serial number of the above embodiments of the invention is only for description, does not represent the advantages or disadvantages of the embodiments.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can be realized by means of software and necessary general hardware platform, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on this understanding, technical solution of the present invention substantially in other words does the prior art
The part contributed out can be embodied in the form of software products, which is stored in a storage medium
In (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that a terminal (can be mobile phone, computer, service
Device, air conditioner or network equipment etc.) execute method described in each embodiment of the present invention.
The embodiment of the present invention is described with above attached drawing, but the invention is not limited to above-mentioned specific
Embodiment, the above mentioned embodiment is only schematical, rather than restrictive, those skilled in the art
Under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, it can also make very much
Form, all of these belong to the protection of the present invention.
Claims (10)
1. a kind of public's emergency information dissemination method, which is characterized in that be applied to public's emergency information delivery system, the public
Emergency information delivery system includes transmitting terminal and receiving end, and the transmitting terminal includes issue terminal and broadcast transmitter, the side
Method includes:
S11: the issue terminal generates emergency information, and carries out coded modulation to the emergency information and generate base-band audio signal
After be transferred to the broadcast transmitter, include alert notification information and target user's information in the emergency information；
S12: the base-band audio signal is modulated to objective emission transmitted on frequencies and gone out by the broadcast transmitter；
S13: the receiving end receives the broadcast singal of the broadcast transmitter transmitting；
S14: the receiving end carries out demodulating and decoding to the broadcast singal and obtains the alert notification information and the target
User information, and target user's information is matched with the information of user itself on the receiving end, in successful match
When according to the alert notification information to user carry out alarm sounds.
2. public's emergency information dissemination method as described in claim 1, which is characterized in that the receiving end includes being built-in with extensively
The back splint battery and intelligent terminal of receiver are broadcast, step S13 includes:
The broadcasting receiver receives the broadcast singal, and the broadcast singal is sent to the intelligent terminal；
Step S14 includes:
The intelligent terminal carries out demodulating and decoding to the broadcast singal and obtains the alert notification information and target user's letter
Breath.
3. public's emergency information dissemination method as described in claim 1, which is characterized in that the alert notification information includes police
Report class information, alarm number information, transmit messages at least one of unit information and event address information, the target user
Information includes at least one of target user handset number and target user's geographical location information.
4. public's emergency information dissemination method as described in claim 1, which is characterized in that step S11 includes:
S21: the issue terminal encodes the emergency information by ASCII character to obtain the first coding result；
S22: FEC is carried out to first coding result and encodes to obtain the second coding result；
S23: an interleaving treatment is carried out again after carrying out scrambling processing to second coding result；
S24: MFSK is carried out to the signal after the interleaving treatment of position and modulates to obtain base-band audio signal.
5. public's emergency information dissemination method as claimed in claim 3, which is characterized in that step S14 includes:
S31: the receiving end is sampled to obtain sampled data to the broadcast singal received；
S32: piecemeal is carried out to the sampled data and handles to obtain multiple data blocks, and does FFT transform for each data block and obtains
To the digital information of respective frequencies information；
S33: scramble process is carried out after being deinterleaved to the digital information again；
S34: fec decoder is carried out to the digital information after scramble process and obtains the first decoding result；
S35: processing is decoded on the basis of first decoding result by ASCII character and is obtained and the emergency information pair
The text information answered.
6. public's emergency information dissemination method as claimed in claim 5, which is characterized in that step S31 includes:
The receiving end carries out 16 times of over-sampling to the broadcast singal.
7. public's emergency information dissemination method as claimed in claim 5, which is characterized in that after step S34 further include:
S341: decoded positions deviation is determined according to first decoding result；
S342: the phase offset of corresponding spectrum is determined according to the decoded positions deviation, and FFT is estimated according to the phase offset
The time migration of position, and the time migration is fed back into step S32, dynamically to adjust the position FFT.
8. a kind of public's emergency information delivery system, which is characterized in that including transmitting terminal and receiving end, the transmitting terminal includes hair
Cloth terminal and broadcast transmitter, wherein；
The issue terminal carries out coded modulation to the emergency information and generates base-band audio signal for generating emergency information
After be transferred to the broadcast transmitter, include alert notification information and target user's information in the emergency information；
The broadcast transmitter is gone out for the base-band audio signal to be modulated to objective emission transmitted on frequencies；
The receiving end is used to receive the broadcast singal of the broadcast transmitter transmitting, and for solving to the broadcast singal
It reconciles code and obtains the alert notification information and target user's information, and will be in target user's information and the receiving end
The information of user itself matches, and carries out alarm sounds to user according to the alert notification information in successful match.
9. public's emergency information delivery system as claimed in claim 8, which is characterized in that the receiving end includes being built-in with extensively
The intelligent terminal broadcasting the back splint battery of receiver and being connect by USB interface with the back splint battery, the broadcasting receiver
The intelligent terminal, the intelligence are sent to by the USB interface for receiving the broadcast singal, and by the broadcast singal
Energy terminal is used to carry out demodulating and decoding to the broadcast singal to obtain the alert notification information and target user's information, described
Back splint battery is also used to charge to the intelligent terminal by the USB interface.
10. public's emergency information delivery system as claimed in claim 8, which is characterized in that the issue terminal is for passing through
ASCII character encodes the emergency information to obtain the first coding result, carries out FEC to first coding result and encodes
To the second coding result, an interleaving treatment is carried out again after carrying out scrambling processing to second coding result, at through position intertexture
Signal after reason carries out MFSK and modulates to obtain base-band audio signal；
The sampled data is divided for being sampled to obtain sampled data to the broadcast singal received in the receiving end
Block handles to obtain multiple data blocks, and does FFT transform for each data block and obtain the digital information of respective frequencies information, to institute
It states and carries out scramble process after digital information is deinterleaved again, fec decoder is carried out to the digital information after scramble process and is obtained
First decoding result is decoded processing on the basis of first decoding result by ASCII character and obtained and the emergency
The corresponding text information of information.
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| US11515955B2 (en) * | 2018-02-05 | 2022-11-29 | Sony Semiconductor Solutions Corporation | Demodulation circuit, processing circuit, processing method, and processing device |
| CN116633467A (en) * | 2023-07-20 | 2023-08-22 | 杭州工信光电子有限公司 | Emergency broadcasting system combining artificial intelligence technology |
| CN116633467B (en) * | 2023-07-20 | 2023-10-10 | 杭州工信光电子有限公司 | Emergency broadcasting system combining artificial intelligence technology |
| CN118041475A (en) * | 2024-03-19 | 2024-05-14 | 广州市新三雅电子技术有限公司 | Emergency broadcasting method, system, intelligent terminal and storage medium |
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