CN201278591Y - Wireless emergency communication synthesis scheduling system - Google Patents
Wireless emergency communication synthesis scheduling system Download PDFInfo
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- CN201278591Y CN201278591Y CNU2008201658672U CN200820165867U CN201278591Y CN 201278591 Y CN201278591 Y CN 201278591Y CN U2008201658672 U CNU2008201658672 U CN U2008201658672U CN 200820165867 U CN200820165867 U CN 200820165867U CN 201278591 Y CN201278591 Y CN 201278591Y
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Abstract
The utility model discloses a wireless emergency communication integrated dispatching system which comprises a director switch as well as a first wireless terminal controller and a second wireless terminal controller which are connected with the director switch, wherein the first wireless terminal controller and the second wireless terminal controller are respectively used for receiving and processing analog signals from each wireless terminal and transferring processed data to the director switch, the data processed by the director switch is respectively processed by the first wireless terminal controller and the second wireless terminal controller, and the processed analog signals are sent out through respective wireless terminals. The utility model can realize the voice communication among wireless or wire communication system users in different technical systems, thereby effectively solving the problem that different communication terminals in emergency departments cannot communicate with each other.
Description
Technical field
The utility model belongs to the command scheduling technical field, relates in particular to a kind ofly possessing function of voice communication between the wireless communication system user of different technologies system or between wireless communication system user and the wired communication system user and be applicable to the command dispatching system in emergency communication field.
Background technology
Current, the various different departments of China's processing accident have the wireless or wired communication system of oneself nearly all independently.When accident took place, traditional traffic guidance's dispatching method was that the dispatcher uses different communication terminals repeatedly to pass on same commander's information, causes interlock difficulty between all departments, commands inefficient situation.
The communication system of existing all departments adopts different technical systems mostly, and different technical systems also can bring in constant renewal in usually, even adopt identical technical system, the frequency range that the communication system of all departments is used is also inconsistent.Can't realize direct communication between the communication terminal of all departments' communication system of so just feasible processing accident, bring a lot of problems to the emergency command scheduling, various accident meetings can not be handled fast and effectively because of difficult communication between all departments.Therefore, how to make the communication system of different technical systems insert the key that same dispatching and command system is the quick emergency command scheduling of realization.
At present, more existing producers are at the exploitation commanding dispatching system, and some system is based on the command dispatching system of ad Hoc wireless network, and some system then can only finish communicating by letter between wired communication system user and the conventional ultrashort wave radio set user.GoTa digital clustering communication system as ZTE Co., Ltd's research and development, also can be used for the emergency cooperative commander, but this system is based on the ad Hoc wireless network that CDMA technology is made standard by oneself, its wireless terminal also is the private network special use, therefore, this system can not insert the wireless communication terminal of other technical system.And for example, the intelligent transposer station of Far East Harris Electronics Co., Ltd. research and development, this equipment only can be finished communicating by letter between a wired communication system user and the conventional ultrashort wave radio set user, but can not finish between the wireless communication terminal of other technical system or between the wireless communication terminal of other technical system with wire user between communicate by letter.
Publication number is the Chinese invention patent application " emergent commanding dispatching system of public emergent great burst event " of CN1819495, though it mention also can realize between wireless user and the wireless user, the communication function between wireless user and the wire user, but the wireless user of its indication is the user who belongs to same communication system, promptly the technical system of the wireless terminal of this system's use all is the same with frequency range, and the wireless transceiver of system is also provided by himself.Therefore, this design limit the access of other technical system wireless terminal, communicating by letter between the wireless user that it can only finish constructed system and the wireless user or between wireless user and the wire user, can not finish between the wireless communication system user that possesses the different technologies system or wireless communication system user and wired communication system user between the function of mutual communication.
Summary of the invention
In order to solve the above-mentioned technical problem of prior art, the utility model purpose is to provide between a kind of wireless communication system user that can realize the different technologies system or the wireless emergency communication synthesis scheduling system of voice communication between wireless communication system user and the wired communication system user, utilize this system can effectively solve between the different communication terminal of each responding agencies can not intercommunication problem.
For this reason, the purpose of this utility model adopts following scheme to realize:
A kind of wireless emergency communication synthesis scheduling system that is applicable to the emergency communication field comprises the master control interchanger, the first wireless terminal controller that is connected with described master control interchanger and the second wireless terminal controller; Wherein:
The first wireless terminal controller is used to receive and handle the call request signaling-information and first analog voice signal from its wireless terminal, and the call request signaling data that will obtain respectively after will handling and first digital voice data are transferred to the master control interchanger; And be used to handle the call answering signaling data that returns by the master control interchanger and second digital voice data after the exchange of master control interchanger, and after will handling reply signaling-information and analog voice signal sends to connected first wireless terminal;
The second wireless terminal controller is used to handle from the call command signaling data of master control interchanger and first digital voice data and call command signaling-information and analog voice signal after will handling send to connected second wireless terminal; Simultaneously, the second wireless terminal controller is used to receive and handle second analog voice signal from its wireless terminal, and second digital voice data after will handling is transferred to the master control interchanger;
The master control interchanger is used to handle and exchange the call request signaling data and first digital voice data from the first wireless terminal controller, call answering signaling data after the first wireless terminal controller transmit to be handled then transmits call command signaling data after handling and first digital voice data after the exchange to the second wireless terminal controller; Simultaneously, the master control interchanger is used to exchange second digital voice data, and second digital voice data that will obtain after will exchanging sends to the first wireless terminal controller.
The master control interchanger of described wireless emergency communication synthesis scheduling system comprises: central processing unit, link to each other with described central processing unit digital switch, digital logical processor, and a plurality of communication/power supply interfaces that link to each other with described digital logical processor; Wherein:
Digital logical processor is used to receive from the call request signaling data of the first wireless terminal controller by the transmission of communication/power supply interface, described call request signaling data is transferred to central processing unit again and obtains call answering signaling data and call command signaling data after digital switch exchange, call answering signaling data and call command signaling data more respectively after the digital switch exchange by digital logical processor by communicate by letter/power supply interface is transferred to the first wireless terminal controller and the second wireless terminal controller;
After call treatment is finished, digital logical processor is used to receive from the first wireless terminal controller and the second wireless terminal controller respectively by communicating by letter/digital voice data of power supply interface transmission, described digital voice data is transferred to the second wireless terminal controller and the first wireless terminal controller by digital logical processor respectively by communication/power supply interface again after the digital switch exchange after digital logical processor digital decompression, linear superposition and compression are handled;
The master control interchanger is powered to the wireless terminal controller by communication/power supply interface.
The central processing unit of described wireless emergency communication synthesis scheduling system master control interchanger comprises: signaling decoder, call request processor, many network addressings device, call answering processor, call command processor and signalling coding device; Wherein:
Signaling decoder is used to receive the call request signaling data after the first wireless terminal controller demodulation and be converted into the call request data, and described call request data enter many network addressings device after the call request processor processing;
Addressing results after many network addressings device is used for addressing handled is sent to call answering processor and call command processor and handles respectively and obtain call answering data and call command data, described call answering data and call command data obtain call answering signaling data and call command signaling data respectively behind signalling coding device coding, call answering signaling data and call command signaling data send through the first wireless terminal controller and the second wireless terminal controller respectively again.
The described first wireless terminal controller and the second wireless terminal controller all comprise: wireless terminal interface, communication/power supply interface, digital signal processor and by A/D converter, D/A, speech detector, signaling modulator, signal demodulation device, the analog voice gain controller of DSP CONTROL; Wherein:
The call request signaling-information of first wireless terminal is transferred to the signal demodulation device and carries out demodulation after the analog voice gain controller gains adjustment, and the call request signaling data after the demodulation is transferred to the master control interchanger by communication/power supply interface;
Call request signaling data after the demodulation obtains call answering signaling data and call command signaling data after the master control interchanger is handled; Described call answering signaling data is transferred to the digital signal processor of the first wireless terminal controller by communication/power supply interface, digital signal processor is modulated the call answering signaling data by the signaling modulator, call answering signaling-information after the modulation through the analog voice gain controller gain adjust after, be sent to first wireless terminal through the wireless terminal interface of the first wireless terminal controller; Described call command signaling data is transferred to the digital signal processor of the second wireless terminal controller by communication/power supply interface, digital signal processor is modulated the call answering signaling data by the signaling modulator, call answering signaling-information after the modulation through the analog voice gain controller gain adjust after, be sent to second wireless terminal through the wireless terminal interface of the second wireless terminal controller;
After call treatment is finished, the analog to digital converter that the analog voice signal of first wireless terminal and first wireless terminal is sent to separately after adjusting through analog voice gain controller gain separately respectively carries out analog-to-digital conversion and compression processing, and the digital voice data that obtains after the processing is transferred to the master control interchanger by communication/power supply interface and exchanges;
First digital voice data that after master control interchanger exchange is handled, obtains respectively and second digital voice data again by communicate by letter/speech detector that power supply interface is transferred to separately carries out speech detection and decompression, the speech data that obtains after the processing is converted to analog voice signal through digital to analog converter separately, analog voice signal again through separately analog voice gain controller gain adjust after, be sent to separately wireless terminal through separately wireless terminal interface.
Described speech detector comprises: digital signal acquiring device, data storage, data decompressor, energy calculator, energy comparator, frequency calculator and frequency comparator; Wherein:
The digital signal acquiring device is used to gather the digital voice data of master control interchanger, and data storage is used for the digital voice data that arrives by set time length segmentation storage of collected;
Data decompressor is used for the digital voice data of data storage is converted to linear speech data, energy calculator and frequency calculator are respectively applied for energy value and the frequency values that calculates the linear speech data of each section, and energy value that obtains after the calculating and frequency values relatively draw the result of speech detection more respectively through energy comparator and frequency comparator.
The wireless terminal interface of described wireless terminal controller comprises: analog voice is collected mail number, analog voice signallings, wireless terminal emissioning controling signal (PTT), radio station carrier wave index signal, serial data are collected mail number, serial data is signaled and.
Described wireless emergency communication synthesis scheduling system also comprises the interior lane controller that is used to control the telephone set conversation, described in lane controller comprise the communication/power supply interface, A/D converter, D/A, the ringing-current controller that are connected with the master control interchanger, pluck/on-hook signal detector and telephone interface; Wherein:
The master control interchanger is transferred to the ringing-current controller by communication/power supply interface with the call command signaling data, the ringing-current controller is sent to telephone set by telephone interface with ringing-current, pluck/the on-hook signal detector can be sent to the master control interchanger by communication/power supply interface with the plucking of telephone set/on-hook signal;
Exhale logical after, the analog signal of telephone set is transferred to A/D converter by telephone interface and carries out analog-to-digital conversion, speech data after analog-to-digital conversion is transferred to the master control interchanger by communication interface and exchanges, the speech data that obtains after the exchange is transferred to D/A by communication interface again and is converted to analog voice signal, and analog voice signal is sent to telephone set through telephone interface again.
Described wireless emergency communication synthesis scheduling system also comprises analog repeater and digital repeater, analog repeater all links to each other with the master control interchanger by the communication/power supply interface of master control interchanger with digital repeater, wherein, analog repeater is used for wireless emergency communication synthesis scheduling system is connected to public wire net by telephone wire, and digital repeater is used for wireless emergency communication synthesis scheduling system is connected to public wire net by the E1 transmission line.
Described wireless emergency communication synthesis scheduling system also comprises networking interface, described networking interface is connected with the master control interchanger, different wireless emergency communication synthesis scheduling systems is connected to each other by networking interface separately, is used to realize the network savvy between the different radio emergency communication synthesis scheduling system.
The beneficial effects of the utility model are:
1, by the wireless terminal controller of the wireless communication system that can insert the different technologies system is provided, the wireless terminal interface of wireless terminal controller can connect the wireless terminal of multiple technologies system, not only the wireless terminal that can control the multiple technologies system is called out, can also carry out modulation and demodulation to the wireless signaling of multiple technologies system, voice communication between the final wireless communication system user of realizing the different technologies system has strengthened the compatible of system and to the multi-selection of wireless terminal.
2, by digital repeater, the analog repeater that can insert outside wired communication system further is provided, with the interior lane controller that can insert inner wire telephone is provided, realize effective access of various wired communication system users, finally realize the wireless communication system user of different technologies system and the voice communication between the wired communication system user, strengthened the opening of system.
3, by networking interface further is provided, realize the network savvy between the different radio emergency communication synthesis scheduling system, improved the extensibility of system.
In addition, the call processing method of the utility model wireless emergency communication synthesis scheduling system can strengthen the rapidity and the high efficiency of command scheduling under the case of emergency; The design of speech detection method that it adopts and wireless terminal emissioning controling signal control method can realize controlling automatically the transmitting-receiving of wireless terminal, the reliability of voice transfer when improving emergency communication.
Description of drawings
Fig. 1 is a kind of entire system principle schematic of embodiment wireless emergency communication synthesis scheduling system;
Fig. 2 is a kind of master control interchanger principle schematic of embodiment wireless emergency communication synthesis scheduling system;
Fig. 3 is a kind of central processing unit principle schematic of embodiment wireless emergency communication synthesis scheduling system master control interchanger;
Fig. 4 is a kind of wireless terminal controller principle schematic diagram of embodiment wireless emergency communication synthesis scheduling system;
Fig. 5 is a kind of interior lines controller principle schematic diagram of embodiment wireless emergency communication synthesis scheduling system;
Fig. 6 is a kind of speech detector principle schematic of embodiment wireless emergency communication synthesis scheduling system;
Fig. 7 is a kind of call processing method embodiment flow chart of the utility model system;
Fig. 8 is a kind of wireless terminal emissioning controling signal control method embodiment flow chart of the utility model system;
Fig. 9 is a kind of speech detection method embodiment flow chart of the utility model system.
Embodiment
Below, come in conjunction with the accompanying drawings embodiment of the present utility model is described further.
As shown in Figure 1, the wireless emergency communication synthesis scheduling system of present embodiment comprises:
A master control interchanger is used for automatically control and normally moves with all devices of coordinating whole dispatching patcher, realizes between the wireless communication system user of different technologies system or the voice communication between wireless communication system user and the wired communication system user;
With the first wireless terminal controller and the second wireless terminal controller that the master control interchanger is connected by internal wiring respectively, can control the transmitting-receiving of various types of wireless communication systems portable terminal according to the result of speech detection automatically, and can regulate the voice gain.Among the utility model embodiment, the first wireless terminal controller is used to control calling party's first wireless terminal, and the second wireless terminal controller is used to control callee's second wireless terminal;
Can realize the Fixed Telephony function for one, and be used for the interior lane controller of communicating by letter with other network user;
Can realize for one connecting, and be used for telex network analog repeater with other network with public telephone network or other fixed-line telephone network;
Can realize for one connecting, and be used for digital repeater with the telex network of other network with public telephone network or other fixed-line telephone network;
One has direct current and exchanges two kinds of supply power modes, and the supply convertor of required operating voltage is provided for system;
A networking interface, described networking interface is connected with the master control interchanger.Different wireless emergency communication synthesis scheduling systems all has the networking interface of oneself, and the different radio emergency communication synthesis scheduling system is connected to each other by networking interface separately, can realize the network savvy between the different radio emergency communication synthesis scheduling system.
Wherein:
When described internal wiring comprises divided data collect mail number, time-division data transmission number, clock signal, synchronizing signal, power supply signal and ground.The master control interchanger feeds to wireless terminal controller, interior lane controller, digital repeater, analog repeater and networking interface to the electric energy of supply convertor by power supply signal and ground.Other signal is data-signal, and the master control interchanger is by other data-signal and wireless terminal controller, interior lane controller, digital repeater, analog repeater and networking interface transmitted in both directions call treatment data and digital voice data.Communicate by aerial wireless signal between the wireless terminal of same type.
Interior lane controller is connected with telephone set by telephone wire.Analog repeater is connected with public telephone network by telephone wire.Digital repeater is connected with public telephone network by the E1 transmission line.Can also interconnect by the networking interface of system separately between the different wireless emergency communication synthesis scheduling systems.
This wireless emergency communication synthesis scheduling system can be realized between the wireless user of different technologies system and the wireless user or mutual communication between wireless user and the wire user.Between the wireless user and wireless user of different technologies system, as follows as the communication process between conventional short-wave radio set user and the cluster mobile station user:
As shown in Figure 1, among the utility model embodiment, the wireless terminal that the first wireless terminal controller connects is conventional short-wave radio set, and the wireless terminal that the second wireless terminal controller connects is a cluster mobile station.Conventional short-wave radio set user is transferred to the conventional short-wave radio set that the wireless terminal controller is connected by wireless signal with call request, conventional short-wave radio set is transferred to call request the wireless terminal controller again and handles, the processed request data are sent to the master control interchanger, the master control interchanger carries out respective handling according to the content of call request data: if the cluster mobile station user free time of call request, then the master control interchanger is called out the cluster mobile station user by the call command signaling-information again, and both sides converse; If the cluster mobile station user of call request is busy, then this call failure can not be conversed.
Between the wireless user and wire user of different technologies system, as follows as the communication process between conventional ultrashort wave radio set user and the interior lines user:
Conventional ultrashort wave radio set can connect as the wireless terminal of the first wireless terminal controller, and interior lines user's telephone set is connected to interior lane controller.Conventional ultrashort wave radio set user is transferred to the conventional ultrashort wave radio set that the wireless terminal controller is connected by wireless signal with call request, conventional ultrashort wave radio set is transferred to call request the wireless terminal controller again and handles, the processed request signaling data is sent to the master control interchanger, the master control interchanger carries out respective handling according to the content of call request signaling data: if the interior lines user free time of call request, then the master control interchanger is called out the interior lines user by the call command signaling data through interior lane controller again, simultaneously, the call answering signaling data is transferred to conventional ultrashort wave radio set through the first wireless terminal controller, the inside line power ringing, conversation is set up; If the interior lines user of call request is busy, then this call failure can not be conversed.
As shown in Figure 2, the master control interchanger of present embodiment comprises: a central processing unit, with central processing unit by the parallel digital switch that is connected of data/address bus and address bus, and one by the serial data line digital logical processor that is connected with digital switch, a plurality of communication/power supply interfaces that are connected with digital logical processor by serial data line.The master control interchanger can be by communication/power supply interface and wireless terminal controller, interior lane controller, analog repeater, digital repeater mutual communication.
The master control interchanger is the core of whole wireless emergency communication synthesis scheduling system, can control and coordinate each equipment automatically and normally move.Simultaneously, it is the normal exchange of finishing the digital voice data of each equipment that another of master control interchanger mainly acts on, and guarantees can carry out normal voice communication between the various user.The course of work of each relevant component devices is as follows in the master control interchanger:
The first wireless terminal controller by communication/power supply interface with the call request transfer of data to digital logical processor, described call request data are transferred to central processing unit and obtain call answering data and call command data after the digital switch exchanges data, call answering data and call command data again after digital switch exchange by digital logical processor in respective channel be transferred to the first wireless terminal controller and the second wireless terminal controller respectively;
After call treatment is finished, the first wireless terminal controller and the second wireless terminal controller respectively by communicate by letter/power supply interface is transferred to digital logical processor with digital voice data, described digital voice data exchanges to respective channel in the digital logical processor through digital switch again after digital logical processor digital decompression, linear superposition and compression are handled, be transferred to the second wireless terminal controller and the first wireless terminal controller then respectively;
The master control interchanger is also powered to the wireless terminal device by communication/power supply interface.
As shown in Figure 3, the central processing unit of the master control interchanger of present embodiment comprises: the signaling decoder that is used to receive the call request signaling after the demodulation of wireless terminal controller and is converted into the call request data, the call request processor that is connected with signaling decoder, the many network addressings device that is connected with the call request processor, the call answering processor and the call command processor that are connected simultaneously with many network addressings device, the signalling coding device that is connected with the call command processor with the call answering processor.The signalling coding device is used for signaling data is sent by the wireless terminal controller.
Each component devices in the central processing unit is work like this:
Wireless emergency communication synthesis scheduling system receives the called number that the conversation calling party sends, and can judge callee's network type after the analysis automatically, selects corresponding network insertion terminal to send the circuit of paging information and connection conversation then.System has stipulated the coding rule of call number between heterogeneous networks.The call request signaling data is transferred to signaling decoder, according to the signal encoding mode that receives, the call request signaling data is decoded as the corresponding call request msg by signaling decoder.
The call request data obtain callee's network type and number after the call request processor processing.Callee's identity information is sent to many network addressings device, and many network addressings device is searched callee's the channel number and the seizure condition of channel fast according to callee's identity information in the database of system.If the channel at callee place is unoccupied, the call answering processor is beamed back caller with callee's channel status and is put behind the data encoder coding, and number terminal by the callee after the call command processor processing of callee sent, at last, the voice channel time slot of both sides' conversation is got through, and conversation is set up.
As shown in Figure 4, first, second wireless terminal controller of present embodiment includes: digital signal processor, the analog voice gain controller that is connected with digital signal processor respectively, signaling modulator, signal demodulation device, A/D converter, D/A, speech detector, communication/power supply interface, communication/power supply interface is connected with the master control interchanger by internal wiring.The wireless terminal controller also comprise be connected with the analog voice gain controller and be used for the wireless terminal interface that is connected with the external wireless terminal.The wireless terminal controller can insert the wireless terminal of a plurality of different technologies systems by wireless terminal interface.
The device of respectively forming of described wireless terminal controller is work like this:
The call request signaling-information of first wireless terminal is transferred to the signal demodulation device and carries out demodulation after the analog voice gain controller gains adjustment, and the call request signaling data after the demodulation is transferred to the master control interchanger by communication/power supply interface;
Call request signaling data after the demodulation obtains call answering signaling data and call command signaling data after the master control interchanger is handled; Described call answering signaling data is transferred to the digital signal processor of the first wireless terminal controller by communication/power supply interface, digital signal processor is modulated the call answering signaling data by the signaling modulator, call answering signaling after the modulation through the analog voice gain controller gain adjust after, be sent to first wireless terminal through the wireless terminal interface of the first wireless terminal controller; Described call command signaling data is transferred to the digital signal processor of the second wireless terminal controller by communication/power supply interface, digital signal processor is modulated the call answering signaling data by the signaling modulator, call answering signaling after the modulation through the analog voice gain controller gain adjust after, be sent to second wireless terminal through the wireless terminal interface of the second wireless terminal controller;
After call treatment is finished, the analog to digital converter that the analog voice of first wireless terminal and first wireless terminal is sent to separately after adjusting through analog voice gain controller gain separately respectively carries out analog-to-digital conversion and compression processing, and the digital voice data that obtains after the processing is transferred to the master control interchanger by communication/power supply interface and exchanges;
First digital voice data that after master control interchanger exchange is handled, obtains respectively and second digital voice data again by communicate by letter/speech detector that power supply interface is transferred to separately carries out speech detection and decompression, the speech data that obtains after the processing is converted to analog voice through digital to analog converter separately, analog voice signal again through separately analog voice gain controller gain adjust after, be sent to separately wireless terminal through separately wireless terminal interface.
The type of wireless terminal can be one or more in conventional short-wave radio set, conventional ultrashort wave radio set, MPT1327 simulation cluster mobile station, TETRA Digital Clustering travelling carriage, GSM terminal and the CDMA terminal.The wireless terminal controller links to each other with wireless terminal by wireless terminal interface, wireless terminal interface comprises that analog voice is collected mail number, analog voice signallings, wireless terminal emissioning controling signal (PTT), radio station carrier wave index signal, serial data are collected mail number, serial data is signaled and ground, and the wireless terminal controller passes through transmitted in both directions voice-and-data between analog voice receiving and transmitting signal and serial data receiving and transmitting signal and the wireless terminal respectively.The wireless terminal controller is by the transmitting-receiving of the wireless signal of wireless terminal emissioning controling signal (PTT) control wireless terminal.Wireless terminal is by the reiving/transmitting state of radio station carrier wave index signal to wireless terminal controller indication wireless terminal.
Speech detector described in the wireless terminal controller comprises: the digital signal acquiring device, the data storage that links to each other with the digital signal acquiring device, the data decompressor that links to each other with data storage, energy calculator that links to each other with data decompressor and frequency calculator, energy comparator and the frequency comparator (as shown in Figure 6) that links to each other with frequency calculator with energy calculator respectively.Wherein,
The digital signal acquiring device is used to gather the data of master control interchanger, and with the storage that collects in data storage; Data decompressor is used for the data after the storage are converted to linear data, and energy calculator and frequency calculator are used to handle linear data, and the data that obtain after the processing are handled the result who draws speech detection through energy comparator and frequency comparator respectively again.
Voice mainly are divided into voiceless sound and voiced sound two classes, and the energy of voiceless sound is low and frequency is higher, is similar to white noise and not too high background noise, and the energy of voiced sound is higher and zero-crossing rate is low.The characteristics of noise are that energy is low and frequency is higher.Voice of the present utility model and voice differentiation technology can be judged according to the energy of voice and noise and the different characteristics of frequency.
Because voice signal is a non-flat steady-state process, the signal processing technology that can not use pats steady signal is carried out analyzing and processing to it.But because voice signal itself, in the short time range of 10～30ms, its characteristic can be regarded as a quasi-stable state process again.Because people's voice signal frequency range is 300～3400Hz, according to nyquist sampling theorem, the sample frequency to voice signal in the native system is 8000Hz.The sampled point that adopts the 10ms time span is as the base unit of handling, and the frequency and the energy of one section voice signal calculated.If signal energy thinks then that greater than predetermined energy minimum threshold and less than predetermined energy max threshold signal meets the energy feature of voice.If signal frequency greater than 300Hz and less than 3400Hz, thinks that then signal meets the frequecy characteristic of voice.If signal had not only met the energy feature of voice but also meet the frequecy characteristic of voice, think that then this signal is voice; In addition other signal is then thought not to be voice.
As shown in Figure 5, the interior lane controller of present embodiment comprises: telephone interface, and communication/power supply interface,, respectively with plucking of being connected with communication/power supply interface of telephone interface/on-hook signal detector, ringing-current controller, A/D converter, D/A.Wherein, communication/power supply interface is connected with the master control interchanger by internal wiring.Interior lane controller provides interface for telephone set inserts wireless emergency communication synthesis scheduling system.
The master control interchanger is transferred to the ringing-current controller by communication/power supply interface with the call command signaling data, the ringing-current controller is sent to telephone set by telephone interface with ringing-current, pluck/the on-hook signal detector can be sent to the master control interchanger by communication/power supply interface with the plucking of telephone set/on-hook signal; Exhale logical after, the analog signal of telephone set is transferred to analog to digital converter by telephone interface and carries out analog-to-digital conversion, speech data after analog-to-digital conversion is transferred to the master control interchanger by communication interface and exchanges, the speech data that obtains after the exchange is transferred to digital to analog converter by communication interface and is converted to analog voice, and analog voice signal is sent to telephone set through telephone interface again.
Figure 7 shows that a kind of call processing method flow chart of the utility model system, it comprises the steps:
1, the first wireless terminal controller receives the analog signal of first wireless terminal by its wireless terminal interface;
2, wireless terminal interface is sent to the signal demodulation device with this analog signal and carries out demodulation, and the signaling modulation system has three kinds of DTMF, CTCSS and FFSK;
3, the signaling data that obtains after with demodulation of the digital signal processor of the first wireless terminal controller is sent to the master control interchanger;
4, the data after the demodulation of signal demodulation device are sent to signaling decoder and decode by signaling format;
If decoded data are not the call request data, the new analog signal that receives of demodulation again then, and jump to step 2;
If decoded data are call request data, then the call request data are sent to many network addressings device and carry out addressing, and jump to step 5;
5, the network addressing unit carries out addressing according to the call request data;
If many network addressings device addressing failure, the new analog signal that receives of demodulation again then, and jump to step 2;
If many network addressings device addressing success, the call answering processor and and the call command processor produce call answering data and call command data according to call request respectively, and jump to step 6;
6, after call answering data and call command data produce, the signalling coding device is encoded to call answering data and call command data respectively, and the data behind the coding are sent to the signaling modulator of the first wireless terminal controller and the second wireless terminal controller respectively;
7, the signaling modulator of the first wireless terminal controller is to the data-modulated after encoding, and the analog signal of the call answering data after the first wireless terminal controller will be modulated is sent; Simultaneously, the signaling modulator of the second wireless terminal controller is to the data-modulated after encoding, and the analog signal of the call command data after the second wireless terminal controller will be modulated is sent.
Fig. 8 is a kind of wireless terminal emissioning controling signal control method flow chart of the utility model system, and it comprises the steps:
Speech detector carries out speech detection to the speech data of multistage set time length continuously, draws the testing result of every section speech data after the detection.
If the continuous multi-stage speech data is voice signal entirely, then start emission by DSP CONTROL wireless terminal emissioning controling signal, wireless terminal is in emission state;
If the continuous multi-stage speech data is not voice signal entirely, it is constant then to be maintained original state by DSP CONTROL wireless terminal emissioning controling signal, and it is constant that the reiving/transmitting state of wireless terminal is kept original state;
If the continuous multi-stage speech data is not voice signal entirely, then stop emission by DSP CONTROL wireless terminal emissioning controling signal, wireless terminal is in accepting state.
A kind of speech detection method flow chart in the above-mentioned wireless terminal emissioning controling signal control method step as shown in Figure 9, it comprises the steps:
1, the data storage digital voice data that the master control interchanger is transferred to the wireless terminal controller is stored by set time length;
2, the digital voice data of the set time length after the storage carries out decompression by data decompressor;
3, the digital voice data after the decompression carries out the calculating of signal energy by energy calculator, and the computational methods of signal energy are the quadratic sum of the numerical value of each digital voice data of calculating;
4, the energy comparator compares with the speech energy value of being scheduled to the energy value of the signal after calculating;
If signal energy meets the energy feature of voice, show that then this signal might be a voice signal, and jump to step 5;
Otherwise, showing that then this signal is not a voice signal, speech detection finishes;
5, after energy calculates and finishes, if this signal might be a voice signal, digital voice data after the decompression is carried out the calculating of signal frequency again by frequency calculator, the computational methods of frequency are the numerical value that calculates each digital voice data and the difference of median, calculate the frequency of signal according to the number of times of the sign change of difference;
6, frequency comparator compares with the speech frequency value of being scheduled to the frequency values of the signal after calculating;
If signal frequency meets the frequecy characteristic of voice, think that then this signal is a voice signal;
Otherwise, think that then this signal is not a voice signal.
Claims (14)
1, a kind of wireless emergency communication synthesis scheduling system is characterized in that: comprise the master control interchanger, the first wireless terminal controller that is connected with described master control interchanger and the second wireless terminal controller; Wherein,
The first wireless terminal controller is used to receive and handle the call request signaling-information and first analog voice signal from its wireless terminal, and the call request signaling data that will obtain respectively after will handling and first digital voice data are transferred to the master control interchanger; And be used to handle the call answering signaling data that returns by the master control interchanger and second digital voice data after the exchange of master control interchanger, and after will handling reply signaling-information and analog voice signal sends to connected first wireless terminal;
The second wireless terminal controller is used to handle from the call command signaling data of master control interchanger and first digital voice data and call command signaling-information and analog voice signal after will handling send to connected second wireless terminal; Simultaneously, the second wireless terminal controller is used to receive and handle second analog voice signal from its wireless terminal, and second digital voice data after will handling is transferred to the master control interchanger;
The master control interchanger is used to handle and exchange the call request signaling data and first digital voice data from the first wireless terminal controller, call answering signaling data after the first wireless terminal controller transmit to be handled then transmits call command signaling data after handling and first digital voice data after the exchange to the second wireless terminal controller; Simultaneously, the master control interchanger is used to exchange second digital voice data, and second digital voice data that will obtain after will exchanging sends to the first wireless terminal controller.
2, wireless emergency communication synthesis scheduling system as claimed in claim 1, it is characterized in that described master control interchanger comprises: central processing unit, digital switch, digital logical processor and a plurality of communication/power supply interfaces that link to each other with described digital logical processor link to each other with described central processing unit; Wherein,
Digital logical processor is used to receive from the call request signaling data of the first wireless terminal controller by the transmission of communication/power supply interface, described call request signaling data is transferred to central processing unit again and obtains call answering signaling data and call command signaling data after digital switch exchange, call answering signaling data and call command signaling data more respectively after the digital switch exchange by digital logical processor by communicate by letter/power supply interface is transferred to the first wireless terminal controller and the second wireless terminal controller;
After call treatment is finished, digital logical processor is used to receive from the first wireless terminal controller and the second wireless terminal controller respectively by communicating by letter/digital voice data of power supply interface transmission, described digital voice data is transferred to the second wireless terminal controller and the first wireless terminal controller by digital logical processor respectively by communication/power supply interface again after the digital switch exchange after digital logical processor digital decompression, linear superposition and compression are handled;
The master control interchanger is powered to the wireless terminal controller by communication/power supply interface.
3, wireless emergency communication synthesis scheduling system as claimed in claim 2 is characterized in that described central processing unit comprises: signaling decoder, call request processor, many network addressings device, call answering processor, call command processor and signalling coding device; Wherein,
Signaling decoder is used to receive the call request signaling data after the first wireless terminal controller demodulation and be converted into the call request data, and described call request data enter many network addressings device after the call request processor processing;
Addressing results after many network addressings device is used for addressing handled is sent to call answering processor and call command processor and handles respectively and obtain call answering data and call command data, described call answering data and call command data obtain call answering signaling data and call command signaling data respectively behind signalling coding device coding, call answering signaling data and call command signaling data send through the first wireless terminal controller and the second wireless terminal controller respectively again.
4, wireless emergency communication synthesis scheduling system as claimed in claim 2 is characterized in that described communication/power supply interface comprises: the time divided data collect mail number, time-division data transmission number, clock signal, synchronizing signal, power supply signal and ground.
5, as each described wireless emergency communication synthesis scheduling system of claim 1-4, it is characterized in that the described first wireless terminal controller and the second wireless terminal controller all comprise: wireless terminal interface, communication/power supply interface, digital signal processor and by A/D converter, D/A, speech detector, signaling modulator, signal demodulation device, the analog voice gain controller of DSP CONTROL; Wherein,
The call request signaling-information of first wireless terminal is transferred to the signal demodulation device and carries out demodulation after the analog voice gain controller gains adjustment, and the call request signaling data after the demodulation is transferred to the master control interchanger by communication/power supply interface;
Call request signaling data after the demodulation obtains call answering signaling data and call command signaling data after the master control interchanger is handled; Described call answering signaling data is transferred to the digital signal processor of the first wireless terminal controller by communication/power supply interface, digital signal processor is modulated the call answering signaling data by the signaling modulator, call answering signaling-information after the modulation through the analog voice gain controller gain adjust after, be sent to first wireless terminal through the wireless terminal interface of the first wireless terminal controller; Described call command signaling data is transferred to the digital signal processor of the second wireless terminal controller by communication/power supply interface, digital signal processor is modulated the call answering signaling data by the signaling modulator, call answering signaling-information after the modulation through the analog voice gain controller gain adjust after, be sent to second wireless terminal through the wireless terminal interface of the second wireless terminal controller;
After call treatment is finished, the analog to digital converter that the analog voice signal of first wireless terminal and first wireless terminal is sent to separately after adjusting through analog voice gain controller gain separately respectively carries out analog-to-digital conversion and compression processing, and the digital voice data that obtains after the processing is transferred to the master control interchanger by communication/power supply interface and exchanges;
First digital voice data that after master control interchanger exchange is handled, obtains respectively and second digital voice data again by communicate by letter/speech detector that power supply interface is transferred to separately carries out speech detection and decompression, the speech data that obtains after the processing is converted to analog voice signal through digital to analog converter separately, analog voice signal again through separately analog voice gain controller gain adjust after, be sent to separately wireless terminal through separately wireless terminal interface.
6, wireless emergency communication synthesis scheduling system as claimed in claim 5 is characterized in that described speech detector comprises: digital signal acquiring device, data storage, data decompressor, energy calculator, energy comparator, frequency calculator and frequency comparator; Wherein,
The digital signal acquiring device is used to gather the digital voice data of master control interchanger, and data storage is used for the digital voice data that arrives by set time length segmentation storage of collected;
Data decompressor is used for the digital voice data of data storage is converted to linear speech data, energy calculator and frequency calculator are respectively applied for energy value and the frequency values that calculates the linear speech data of each section, and energy value that obtains after the calculating and frequency values relatively draw the result of speech detection more respectively through energy comparator and frequency comparator.
7, wireless emergency communication synthesis scheduling system as claimed in claim 6 is characterized in that described wireless terminal interface comprises: analog voice is collected mail number, analog voice signallings, wireless terminal emissioning controling signal (PTT), radio station carrier wave index signal, serial data are collected mail number, serial data is signaled and.
8, wireless emergency communication synthesis scheduling system as claimed in claim 6 is characterized in that: described wireless terminal is simulated in cluster mobile station, TETRA Digital Clustering travelling carriage, GSM terminal and the CDMA terminal one or more for the conventional short-wave radio set that is connected with the wireless terminal controller by wireless terminal interface, conventional ultrashort wave radio set, MPT1327.
9, as each described wireless emergency communication synthesis scheduling system of claim 1-4, it is characterized in that: also comprise the interior lane controller that is used to control the telephone set conversation, described in lane controller comprise the communication/power supply interface, A/D converter, D/A, the ringing-current controller that are connected with the master control interchanger, pluck/on-hook signal detector and telephone interface; Wherein,
The master control interchanger is transferred to the ringing-current controller by communication/power supply interface with the call command signaling data, the ringing-current controller is sent to telephone set by telephone interface with ringing-current, pluck/the on-hook signal detector can be sent to the master control interchanger by communication/power supply interface with the plucking of telephone set/on-hook signal;
Exhale logical after, the analog signal of telephone set is transferred to A/D converter by telephone interface and carries out analog-to-digital conversion, speech data after analog-to-digital conversion is transferred to the master control interchanger by communication interface and exchanges, the speech data that obtains after the exchange is transferred to D/A by communication interface again and is converted to analog voice signal, and analog voice signal is sent to telephone set through telephone interface again.
10, wireless emergency communication synthesis scheduling system as claimed in claim 6, it is characterized in that: also comprise the interior lane controller that is used to control the telephone set conversation, described in lane controller comprise the communication/power supply interface, A/D converter, D/A, the ringing-current controller that are connected with the master control interchanger, pluck/on-hook signal detector and telephone interface; Wherein,
The master control interchanger is transferred to the ringing-current controller by communication/power supply interface with the call command signaling data, the ringing-current controller is sent to telephone set by telephone interface with ringing-current, pluck/the on-hook signal detector can be sent to the master control interchanger by communication/power supply interface with the plucking of telephone set/on-hook signal;
Exhale logical after, the analog signal of telephone set is transferred to A/D converter by telephone interface and carries out analog-to-digital conversion, speech data after analog-to-digital conversion is transferred to the master control interchanger by communication interface and exchanges, the speech data that obtains after the exchange is transferred to D/A by communication interface again and is converted to analog voice signal, and analog voice signal is sent to telephone set through telephone interface again.
11, wireless emergency communication synthesis scheduling system as claimed in claim 5, it is characterized in that: also comprise analog repeater and digital repeater, analog repeater all links to each other with the master control interchanger by the communication/power supply interface of master control interchanger with digital repeater, wherein, analog repeater is used for wireless emergency communication synthesis scheduling system is connected to public wire net by telephone wire, and digital repeater is used for wireless emergency communication synthesis scheduling system is connected to public wire net by the E1 transmission line.
12, wireless emergency communication synthesis scheduling system as claimed in claim 10, it is characterized in that: also comprise analog repeater and digital repeater, analog repeater all links to each other with the master control interchanger by the communication/power supply interface of master control interchanger with digital repeater, wherein, analog repeater is used for wireless emergency communication synthesis scheduling system is connected to public wire net by telephone wire, and digital repeater is used for wireless emergency communication synthesis scheduling system is connected to public wire net by the E1 transmission line.
13, wireless emergency communication synthesis scheduling system as claimed in claim 5, it is characterized in that: also comprise networking interface, described networking interface is connected with the master control interchanger, different wireless emergency communication synthesis scheduling systems is connected to each other by networking interface separately, is used to realize the network savvy between the different radio emergency communication synthesis scheduling system.
14, wireless emergency communication synthesis scheduling system as claimed in claim 12, it is characterized in that: also comprise networking interface, described networking interface is connected with the master control interchanger, different wireless emergency communication synthesis scheduling systems is connected to each other by networking interface separately, is used to realize the network savvy between the different radio emergency communication synthesis scheduling system.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103402272A (en) * | 2013-08-12 | 2013-11-20 | 科立讯通信股份有限公司 | System for realizing direct communication and interconnection of two small-scale wireless private networks, and communication method thereof |
| CN105245521A (en) * | 2015-10-14 | 2016-01-13 | 海能达通信股份有限公司 | Protocol format conversion method and device and interface platform |
| CN105744009A (en) * | 2014-12-08 | 2016-07-06 | 上海航天有线电厂有限公司 | Short-wave relay interface device for radio communication system |
| CN111669742A (en) * | 2020-07-30 | 2020-09-15 | 广州狸园科技有限公司 | Wireless emergency communication comprehensive scheduling system |
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2008
- 2008-10-20 CN CNU2008201658672U patent/CN201278591Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103402272A (en) * | 2013-08-12 | 2013-11-20 | 科立讯通信股份有限公司 | System for realizing direct communication and interconnection of two small-scale wireless private networks, and communication method thereof |
| CN103402272B (en) * | 2013-08-12 | 2016-06-01 | 科立讯通信股份有限公司 | A kind of realize two micro radio private networks and lead directly to interconnected system and communication method thereof |
| CN105744009A (en) * | 2014-12-08 | 2016-07-06 | 上海航天有线电厂有限公司 | Short-wave relay interface device for radio communication system |
| CN105744009B (en) * | 2014-12-08 | 2018-12-14 | 上海航天有线电厂有限公司 | A kind of short-relay interface arrangement for station telecommunication system |
| CN105245521A (en) * | 2015-10-14 | 2016-01-13 | 海能达通信股份有限公司 | Protocol format conversion method and device and interface platform |
| CN105245521B (en) * | 2015-10-14 | 2019-11-15 | 海能达通信股份有限公司 | Protocol format conversion method, device and interface platform |
| CN111669742A (en) * | 2020-07-30 | 2020-09-15 | 广州狸园科技有限公司 | Wireless emergency communication comprehensive scheduling system |
| CN111669742B (en) * | 2020-07-30 | 2021-06-08 | 广州狸园科技有限公司 | Wireless emergency communication comprehensive scheduling system |
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