CN110730426A - Emergency broadcast call center system and method - Google Patents
Emergency broadcast call center system and method Download PDFInfo
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- CN110730426A CN110730426A CN201910966459.XA CN201910966459A CN110730426A CN 110730426 A CN110730426 A CN 110730426A CN 201910966459 A CN201910966459 A CN 201910966459A CN 110730426 A CN110730426 A CN 110730426A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/22—Arrangements for supervision, monitoring or testing
- H04M3/2281—Call monitoring, e.g. for law enforcement purposes; Call tracing; Detection or prevention of malicious calls
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/4228—Systems providing special services or facilities to subscribers in networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/50—Centralised arrangements for answering calls; Centralised arrangements for recording messages for absent or busy subscribers ; Centralised arrangements for recording messages
- H04M3/527—Centralised call answering arrangements not requiring operator intervention
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/08—Access security
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/40—Security arrangements using identity modules
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/90—Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Business, Economics & Management (AREA)
- Health & Medical Sciences (AREA)
- Emergency Management (AREA)
- Environmental & Geological Engineering (AREA)
- Public Health (AREA)
- Technology Law (AREA)
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- Telephonic Communication Services (AREA)
Abstract
The invention discloses an emergency broadcast call center system and a method, which comprises an emergency broadcast system, a user side, a public switched telephone network, a switch and a call center, wherein the user side dials a fixed number (namely a call center system number), the call center monitors an incoming call signal and automatically performs off-hook, the call center judges the legality through the incoming call number and transmits processing information to the emergency broadcast system to request for broadcasting real-time voice broadcast, and the call center starts to shout and broadcast in real time after replying a confirmation message; the call center comprises a vacancy recognition module, a multi-path telephone voice integration module and a legal verification module, wherein the multi-path telephone voice integration module consists of n information processing units, n is a natural number greater than 2, and is set according to the user requirement. The invention solves the problem that one number only supports one incoming call in the traditional broadcast, greatly reduces the redundancy of equipment and greatly reduces the hardware cost. The system has the characteristics of low power consumption, easy installation, easy maintenance, small occupied space and the like.
Description
Technical Field
The invention relates to the field of communication, in particular to an emergency broadcast call center system and an emergency broadcast call center method.
Background
The emergency broadcast is a rapid and fast information transmission channel which can be provided when sudden public crisis such as serious natural disaster, sudden event, public health and social security occurs.
At present, because the telephone number of the existing emergency broadcasting system can only support one number for calling, the existing emergency broadcasting system can only adopt a plurality of numbers for parallel deployment to support simultaneous multi-path telephone audio calling, and the number cannot be shared and used in the mode, so that the number resource waste of a telecommunication department is caused. Each access module in the telephone access equipment needs to operate independently (namely one module for one number), so that the occupied space is larger during horizontal extension, the hardware cost is increased, and the power consumption is multiplied.
The existing emergency broadcasting system has the following defects: the realization of telephone access by an independent telephone module generally requires the development of hardware equipment, a plurality of telephone modules are embedded in the equipment, and each module is used as a telephone access and simultaneously occupies a telephone number resource. The more telephone modules that are used, the more number resources that are occupied, and if one of the module channels is occupied or fails, the additional modules cannot be used instead (i.e., cannot be shared) because the number of each module is different. In addition, in practical application, the number of each module cannot be given to a person who actually uses the module, and a user does not know which number can be normally used, so that the operation is not facilitated.
Disclosure of Invention
Aiming at the defects, the invention provides an emergency broadcast call center system, which solves the problem that one number only supports one incoming call in the traditional broadcast, greatly reduces the redundancy of equipment and greatly reduces the hardware cost. The system has the characteristics of low power consumption, easy installation, easy maintenance, small occupied space and the like.
The technical scheme is as follows: an emergency broadcast call center system comprises an emergency broadcast system, and further comprises a user side, a public switched telephone network, an exchanger and a call center, wherein the user side calls a fixed number in the public switched telephone network by dialing, the dialed call is converted into information which can be identified by the call center through the exchanger, the call center processes the information after judging and identifying the information and then transmits the information to the emergency broadcast system, and the emergency broadcast system broadcasts user broadcast information in real time; the call center comprises a vacancy recognition module, a multi-path telephone voice integration module and a legal verification module, wherein the multi-path telephone voice integration module consists of n information processing units, n is a natural number greater than 2 and is set according to the requirement of a user; the vacancy identifying module is used for identifying whether n information processing units in the multi-path telephone voice integration module have vacancies and positions of the vacancies; the system comprises a blacklist information checking and identifying module, an authorized person identity verification information module, an area code information module and the like; each information processing unit comprises an authorization identification module, an automatic incoming call answering voice guidance prompt module and an audio acquisition, coding and audio data real-time sending module, wherein the authorization identification module is used for identifying whether a dialing user can broadcast through the call center or not, the automatic incoming call answering module is used for automatically picking up a user's incoming call and automatically playing voice to guide the user in operation, and the audio acquisition, coding and real-time sending module is used for shouting the user in real time to perform audio acquisition and coding after applying for broadcasting success and sending generated audio data to an emergency broadcast audio service interface in real time and then sending the audio data to an emergency broadcast system through a network.
Preferably, the authorized person authentication information module is composed of a white list module and a general authorized person authentication information module.
The invention also provides an emergency broadcast calling method.
The technical scheme is as follows: an emergency broadcast call method, comprising the steps of:
s01 user dials fixed number of call center in public telephone exchange network through handset;
s02 calling center to recognize the vacancy and whether there is vacancy information processing unit and vacancy position;
s03 the call center picks up the user calling number automatically;
the information processing unit of the S04 vacancy accesses the user calling number, and the information processing unit calls information from legal verification to identify whether the information of the user calling number is authorized or not;
s05, prompting the user to input the area code for broadcast control after identification is qualified, and starting to apply for real-time broadcast to the emergency broadcast system after input confirmation;
s06 real-time collects and codes the broadcast content audio of user, and sends it to audio access port, and then sends it to emergency broadcast system for broadcast.
Preferably, in S02, if the call center performs vacancy recognition, the voice prompt system is busy; if the call center performs the empty bit recognition, the process proceeds to S03.
Preferably, in S04, when the user is authorized to identify, if the user' S calling number matches the information of the blacklist in the legal verification, the user is prompted by voice to be the blacklist, the call center actively hangs up, the broadcast is terminated, and the resource is released; if the user calling number is consistent with the information of the white list in the legal verification, directly entering S06; if the user calling number is consistent with the information in the general authorized person, the S05 is entered; if the user calling number is not in accordance with the information of any one of the blacklist, the white list and the general authorized person, analyzing the reply password, prompting to input the password by voice, if the password is qualified, entering S05, if the password is qualified, prompting to input the password by voice.
Preferably, in S06, the method further comprises identifying whether to hang up and sending information to the audio access port to terminate the play-out, and releasing the resource.
Compared with the prior art, the invention has the beneficial effects that:
the invention is applied to the telephone voice access in the emergency broadcasting system, realizes the telephone access by adopting the telephone integration technology and the switchboard communication technology through a software mode, can reduce the power consumption and the hardware cost by times, and saves the number resources of a telecommunication department because the numbers can be shared and used.
The invention is suitable for the field of emergency broadcasting and automatic voice service without seats.
Drawings
FIG. 1 is an overall block diagram of the present invention;
FIG. 2 is a schematic diagram of the distribution of information processing units of the multi-channel telephone voice integration module according to the present invention;
FIG. 3 is a block diagram of an information processing unit of the present invention;
FIG. 4 is a block diagram of a validity check module of the present invention;
FIG. 5 is a schematic flow diagram of the invention.
Detailed Description
The invention will be further explained with reference to the drawings.
Referring to fig. 1 to 5, an emergency broadcast call center system includes a user terminal, a Public Switched Telephone Network (PSTN), a switch, a call center, and an emergency broadcast system, wherein the user terminal dials a fixed number of the call center in the PSTN, the dialed call is converted into information that can be recognized by the call center through the switch, the call center processes the information after determining the recognition and transmits the processed information to the emergency broadcast system, and the emergency broadcast system broadcasts user voice broadcast information in real time.
The call center comprises a vacancy recognition module, a multi-channel telephone voice integration module and a legal verification module, wherein the multi-channel telephone voice integration module consists of n information processing units 1, n is a natural number greater than 2, and is set according to user requirements.
The vacancy identifying module is used for identifying whether n information processing units 1 in the multi-path telephone voice integration module have vacancies and the positions of the vacancies.
And verifying and identifying blacklist information, authorized person identity verification information, area code information and the like, wherein the authorized person identity verification information comprises a white list and general authorized person identity verification information.
Each information processing unit 1 comprises an authorization identification module, an automatic answering incoming call voice guide prompt module and an audio acquisition, coding and audio data real-time sending module, wherein the authorization identification module is used for identifying whether a dialing user can broadcast through the call center or not, the automatic answering voice guide prompt module is used for automatically answering the incoming call of the user and automatically conducting operation guidance on the user through voice, and the audio acquisition, coding and real-time sending module is used for shouting the user in real time to conduct audio acquisition and coding after applying for broadcasting success and sending generated audio data to an emergency broadcasting audio service interface in real time and then sending the audio data to an emergency broadcasting system through a network.
The emergency broadcasting system is an existing conventional emergency broadcasting system, and the emergency broadcasting system is played through a loudspeaker and other playing devices.
Referring to fig. 1 to 5, an emergency broadcast call method includes the steps of:
s01 user dials fixed number of call center in public telephone exchange network through handset;
s02, the call center identifies the vacancy, identifies whether the information processing unit (unoccupied) of the vacancy exists or not and the position of the vacancy;
s03 the call center picks up the user calling number automatically;
the information processing unit of the S04 vacancy accesses the user calling number, and the information processing unit calls information from legal verification to identify whether the information of the user calling number is authorized or not;
s05, prompting the user to input the area code for broadcast control after identification is qualified, and starting to apply for real-time broadcast to the emergency broadcast system after input confirmation;
s06 real-time collects and codes the broadcast content audio of user, and sends it to audio access port, and then sends it to emergency broadcast system for broadcast.
In S03, if the call center does not recognize the vacancy, the voice prompt system is busy and whether the call center is on-hook; if the call center performs vacancy recognition, the step goes to S04;
in S04, when the user is authorized to identify, if the user calling number is consistent with the information of the blacklist in the legal verification, the user is prompted to be the blacklist by voice, the call center actively hangs up, the broadcasting is stopped, and the resource is released; if the user calling number is consistent with the information of the white list in the legal verification, directly entering S06; if the user calling number is consistent with the information in the general authorized person, the S05 is entered; if the user calling number is not in accordance with the information of any one of the blacklist, the white list and the general authorized person, analyzing the reply password, prompting to input the password by voice, if the password is verified to be qualified, entering S05, and if the password is not verified to be qualified, prompting to input the password by voice.
At S06, the method further includes identifying whether to hang up and sending information to the audio access port to terminate the playout, and releasing the resources.
The invention automatically monitors the ringing state of all channels, automatically answers when incoming call information is monitored, and plays voice prompt information to require a user to input parameters such as a verification password, and the like, after the system verification is completed, the parameters are submitted to an emergency broadcast background service system to apply for starting the telephone voice broadcast, after the background application is successful, the status parameters are returned, and the user is prompted to start the telephone voice broadcast by playing prompt tones, and if the verification is unsuccessful or the broadcast application is unsuccessful, the system automatically plays to prompt the broadcast to be ended. The emergency utilization rate of the emergency broadcast can be increased by integrating the telephone calling system into the emergency broadcast, and the emergency broadcast can be played by calling only a specified telephone number no matter where the user is.
The invention has high integration level, small volume and low energy consumption, a single call center system can support 256 calls to be called simultaneously without mutual interference, and a user only needs to dial a fixed number to carry out calling broadcasting according to voice guidance.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. Emergency broadcast call center system, including emergency broadcast system, its characterized in that:
the emergency broadcast call center system also comprises a user side, a public telephone switching network, an exchanger and a call center, wherein the user side converts the fixed number of the call center in the public telephone switching network into information which can be identified by the call center through the exchanger by dialing the fixed number, the call center processes the information after judging and identifying the information and then transmits the information to the emergency broadcast system, and the emergency broadcast system broadcasts user broadcast information in real time; the call center comprises a vacancy recognition module, a multi-path telephone voice integration module and a legal verification module, wherein the multi-path telephone voice integration module consists of n information processing units, n is a natural number greater than 2 and is set according to the requirement of a user; the vacancy identifying module is used for identifying whether n information processing units in the multi-path telephone voice integration module have vacancies and positions of the vacancies; the system comprises a blacklist information checking and identifying module, an authorized person identity verification information module, an area code information module and the like; each information processing unit comprises an authorization identification module, an automatic incoming call voice guide prompt module and an audio acquisition, coding and audio data real-time sending module, wherein the authorization identification module is used for identifying whether a dialing user can broadcast through the call center, the automatic answering module is used for automatically picking up a user's incoming call and automatically playing voice to guide the user in operation, and the audio acquisition, coding and real-time sending module is used for acquiring, coding and sending the user broadcast information which can be broadcast after being identified by the authorization identification module to an emergency broadcast audio service interface in real time and then sending the audio data to an emergency broadcast system through a network.
2. The emergency broadcast call center system of claim 1, wherein: the authorized person identity authentication information module consists of a white list module and a general authorized person identity authentication information module.
3. An emergency broadcast call method, comprising the steps of:
s01 user dials fixed number of call center in public telephone exchange network through handset;
s02 calling center to recognize the vacancy and whether there is vacancy information processing unit and vacancy position;
s03 the call center picks up the user calling number automatically;
s04 the information processing unit calls the information from the legal check to identify whether the user calling number information is authorized;
s05, prompting the user to input the area code for broadcast control after identification is qualified, and starting to apply for real-time broadcast to the emergency broadcast system after input confirmation;
s06 real-time collects and codes the broadcast content audio of user, and sends it to audio access port, and then sends it to emergency broadcast system for broadcast.
4. The emergency broadcast call method according to claim 3, wherein: in the step S02, if the call center does not recognize the vacancy, the voice prompt system is busy; if the call center performs the empty bit recognition, the process proceeds to S03.
5. The emergency broadcast call method according to any one of claims 3 to 4, wherein: in S04, when the user is authorized to identify, if the user' S calling number matches the information of the blacklist in the legal verification, the user is prompted by voice to be the blacklist, the call center actively hangs up, the broadcasting is terminated, and the resource is released; if the user calling number is consistent with the information of the white list in the legal verification, directly entering S06; if the user calling number is consistent with the information in the general authorized person, the S05 is entered; if the user calling number is not in accordance with the information of any one of the blacklist, the white list and the general authorized person, analyzing the reply password, prompting to input the password by voice, if the password is verified to be qualified, entering S05, and if the password is not verified to be qualified, prompting to input the password by voice.
6. The emergency broadcast call method according to any one of claims 3 to 5, wherein: in S06, the method further includes identifying whether to hang up, and if a hang up signal is identified, sending information to the audio access port to terminate the play out, and releasing the resource.
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| CN201910966459.XA CN110730426B (en) | 2019-10-12 | 2019-10-12 | Emergency broadcast call center system and method |
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| CN201910966459.XA CN110730426B (en) | 2019-10-12 | 2019-10-12 | Emergency broadcast call center system and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112584324A (en) * | 2020-11-19 | 2021-03-30 | 福建新大陆通信科技股份有限公司 | Emergency broadcast multi-path telephone short message access broadcasting method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1863254A (en) * | 2005-07-08 | 2006-11-15 | 大唐高鸿数据网络技术股份有限公司 | Method and system of call central service |
| CN102256025A (en) * | 2011-03-26 | 2011-11-23 | 太原鹏跃电子科技有限公司 | Dual-tone-multi-frequency-signal-based remote emergency broadcast system control method and device |
| CN103780769A (en) * | 2014-02-24 | 2014-05-07 | 广东机电职业技术学院 | Emergency satellite voice terminal dial testing method and management system |
| CN103974199A (en) * | 2014-04-15 | 2014-08-06 | 重庆广播电视信息网络有限公司潼南分公司 | Broadcasting system with emergency information issuing function |
-
2019
- 2019-10-12 CN CN201910966459.XA patent/CN110730426B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1863254A (en) * | 2005-07-08 | 2006-11-15 | 大唐高鸿数据网络技术股份有限公司 | Method and system of call central service |
| CN102256025A (en) * | 2011-03-26 | 2011-11-23 | 太原鹏跃电子科技有限公司 | Dual-tone-multi-frequency-signal-based remote emergency broadcast system control method and device |
| CN103780769A (en) * | 2014-02-24 | 2014-05-07 | 广东机电职业技术学院 | Emergency satellite voice terminal dial testing method and management system |
| CN103974199A (en) * | 2014-04-15 | 2014-08-06 | 重庆广播电视信息网络有限公司潼南分公司 | Broadcasting system with emergency information issuing function |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112584324A (en) * | 2020-11-19 | 2021-03-30 | 福建新大陆通信科技股份有限公司 | Emergency broadcast multi-path telephone short message access broadcasting method |
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Effective date of registration: 20221121 Address after: No. 313, Building 2, No. 33, Wuqing South Road, Administration Committee of Wuhou E-commerce Industrial Functional Zone, Wuhou District, Chengdu, Sichuan 610000 Patentee after: Sichuan Kuangshi Softcom Electronic Technology Co.,Ltd. Address before: 610000 No. 8, floor 6, unit 3, building 4, No. 166, Wuxing Fourth Road, Wuhou District, Chengdu, Sichuan Patentee before: CHENGDU XIYIDA ELECTRONIC TECHNOLOGY CO.,LTD. |