CN2862539Y - Multipath switch-in apparatus - Google Patents
Multipath switch-in apparatus Download PDFInfo
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- CN2862539Y CN2862539Y CN 200520105906 CN200520105906U CN2862539Y CN 2862539 Y CN2862539 Y CN 2862539Y CN 200520105906 CN200520105906 CN 200520105906 CN 200520105906 U CN200520105906 U CN 200520105906U CN 2862539 Y CN2862539 Y CN 2862539Y
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Abstract
The utility model discloses a multi-way access equipment, comprising a system control part for completing the control to voice, switching and other functions, a switching matrix part for completing the whole circuit switching among the multi-way internal lines, multi-way external lines, DTMF transceiver module, telephonist module and sound generator, an internal lines interface processing part for completing the functions of the user call picking up detecting, user line feeding and ringing generation, an external lines interface processing part including a plurality of wireless external lines and a plurality of wire external lines interfaces for completing the functions of picking up detecting, ringing detecting and indicating, and hang-up sound detecting. The system control part and the switching matrix part connects respectively to the internal lines interface processing part, the external lines interface processing part, the DTMF transceiver module, the telephonist module and the sound generator. The utility model realizes the access of the signals from multiple wire channels and multiple wireless channels and has a switching function among all the internal user telephones.
Description
Technical field
The utility model relates to the access device of field of telecommunications, is specifically related to a kind of multi-user's multichannel access device that is used to insert fixed telephone network and mobile communications network.
Background technology
At present, multichannel access type Public CDMA WLL generally is simply adding up of a plurality of single channel access type Public CDMA WLLs, being about to the form of a plurality of single channel access type Public CDMA WLL circuit boards by slot combines, each single channel access type Public CDMA WLL circuit is separate, and user interface circuit directly links to each other with trunk line circuit in each single channel access type Public CDMA WLL circuit, the function that therefore this equipment is realized is identical with single channel access type Public CDMA WLL, it is consistent with trunk to insert number of users, and does not have function of exchange.If when access device needs to converse between the user of band down, also will take radio channel resource, just nervous Radio Resource itself is caused unnecessary waste.When if wireless channel breaks down, this equipment just also can't be conversed between cisco unity malfunction and the user.
In addition, existing fixed telephone network voice Private Branch Exchange PBX only possesses PSTN line relay circuit, implementation also is by the break-make between switched circuit control user interface and the trunk, but this equipment does not have the wireless relay circuit, can't utilize the resource of mobile communications network, be difficult to extend the enterprise and the communication hot zones in area in wire communication, such Private Branch Exchange PBX just can not be brought into play its advantage.In addition,, can effectively utilize the wire message way resource though this Private Branch Exchange PBX possesses function of exchange,, if wire message way breaks down, then this equipment can't normally use.
Summary of the invention
Defective and deficiency at prior art, the purpose of this utility model has been to provide a plurality of wireless channels of a plurality of wire message way of a kind of PSTN of utilization (public switch telephone network) and mobile communication system as trunk, realize that a plurality of internal user phones insert PSTN or mobile communication system network, the multichannel access device that has function of exchange between the inner simultaneously subscriber phone.This multichannel access device has flexible, the economic and practical characteristics that insert.
The technical solution that realizes the foregoing invention purpose is:
This multichannel access device is made up of systems control division branch, switching matrix part, interface section, interior lines, outside line interface section, DTMF transceiver module, operator's module and audio-frequency generator.
The systems control division branch is finished the control to voice, exchange and other functions.
Switching matrix is partly finished the whole circuit exchange between multichannel interior lines, multichannel outside line, DTMF transceiver module, operator's module, tone generator.
The interior lines interface is handled section processes multichannel inside line interface, finishes substation off-hook detection, subscriber's line feed, ring generation.
Outside line interface processing section comprises a plurality of wireless exterior-line interface circuits and a plurality of wired exterior-line interface circuit, finishes off-hook, ring detection and indication, hang-up tone detection.
The DTMF transceiver module is finished the transmitting-receiving of dtmf signal.
Operator's module finish operator's sound storage, record, play, under the control that systems control division divides, finish recording and playing of operator's sound.
Audio-frequency generator is finished the generation of dialing tone and busy tone.
Described systems control division divides and is connected with switching matrix part, interface processing section, interior lines, outside line interface processing section, DTMF transceiver module, operator's module and audio-frequency generator respectively.
Described switching matrix part is connected with interface processing section, interior lines, outside line interface processing section, DTMF transceiver module, operator's module and audio-frequency generator respectively.
Described systems control division divides and mainly comprises master cpu and peripheral circuit.
Described peripheral circuit comprises: decoding logic circuit, I/O port circuit, bus cache and drive circuit.
Described master cpu is connected with other ancillary equipment by bus and I/O port, finishes the control to switching matrix part, operator's module, DTMF transceiver module, interface processing section, interior lines and memory.
Described master cpu circuit adopts the P89C669 chip.
Described switching matrix partly utilizes two MT8816 circuit to constitute 16*16 analog switch switching network.
Pass through serial interface communication between described wireless exterior-line interface circuit and the CPU.
As mentioned above, the utility model utilizes a plurality of wired passages and a plurality of radio channel to finish the access of signal, thereby has realized wireless and wired integral application, is applicable to medium-sized and small enterprises, communication hot zones.Because this equipment has switch fabric circuitry, do not take wire message way and wireless channel when conversing between the subscriber phone of interior lines, thereby improved the utilance of wire message way and radio channel simultaneously.
Description of drawings
Fig. 1 is the utility model system block diagram;
Fig. 2 is master cpu control connection figure;
Fig. 3 is the master cpu circuit diagram;
Fig. 4 is wireless exterior-line interface circuit figure;
Fig. 5 is the DTMF circuit diagram;
Fig. 6 is simulation switch fabric circuitry figure.
Embodiment
In order further to understand the utility model, detailed technology content of the present utility model is described in further detail below in conjunction with accompanying drawing.
Present embodiment be a wire message way and 2 wireless channels as trunk, realize that 8 subscriber phones insert PSTN and GSM network, simultaneously the multichannel access device that has function of exchange between 8 intercommunication phones.
As shown in Figure 1, the utility model is main formation with the module, and module shown in the figure is finished following function:
The systems control division branch is finished the control to voice, exchange and other functions.Main circuit is the master cpu circuit, adopts the P89C669 chip.Substation off-hook detection, subscriber's line feed, ring generation are finished in interface processing section, interior lines.Can handle line interface in 8 tunnel, its core is 8 road slic circuits.Off-hook, ring detection and indication are finished in outside line interface processing section, hang-up tone detects, and comprise 2 wireless outer wire modules and 1 wired outer wire module.The core of wireless outer wire module is a gsm module, and wired outer wire module is a user interface circuit.Switching matrix is partly finished the whole circuit function of exchange between 8 tunnel interior lines, 3 tunnel outside lines, DTMF circuit, operator's module, tone generator, utilizes two MT8816 circuit to expand to 16*16 analog switch switching network.The DTMF transceiver is finished the transmission-receiving function of dtmf signal.Operator circuit finish operator's sound storage, record, play, be connected to switching matrix, under the control that systems control division divides, finish recording and playing of operator's sound.Audio-frequency generator is finished the generation of dialing tone and busy tone, is connected to switching matrix.
Concrete calling procedure is as follows:
1, Internal call (internal user A calls out internal user B)
User A off-hook, corresponding SLIC interface circuit detects this off hook signal, and master cpu is analyzed this off hook signal, user A link tester is crossed switching matrix link to each other with audio-frequency generator circuit, dtmf receiver, user A hears dialing tone, and user A begins to dial the telephone number of the calling party B that wants; DTMF partly receives dialing and simultaneously dialing tone is cut off by the simulation switching matrix, if user B is busy, send busy tone then for user A, and user A on-hook discharges all resources relevant with user A.
If the user B free time, distribute a dtmf receiver circuit by the control switching matrix for user B, the control slic circuit produces ring and intermittently sends electric number here for user B by the dtmf receiver circuit in ring, controls switching matrix simultaneously and send ring-back tone for user A, subscriber phone B ring.If user B off-hook, slic circuit detects off-hook, discharges DTMF and tone signal resource, and the control switching matrix is connected user A with the circuit of user B, and user A and B begin conversation.End of conversation, user A on-hook, slic circuit detects on-hook signal, discharges all resources relevant with user A, with the circuit switched of user B to the busy tone generator.User B on-hook, slic circuit detects on-hook signal, discharges all resources relevant with user A.
If user B did not have off-hook at 1 minute in the clock time, send busy tone then for user A, discharge all resources relevant with user B, user A on-hook discharges all resources relevant with user A.
2, interior lines utilize wireless channel to call out outside line (internal user A calls out outside line user C)
User A off-hook, corresponding SLIC interface circuit detects this off hook signal, and master cpu is analyzed this off hook signal, user A link tester is crossed the simulation switching matrix link to each other with audio-frequency generator circuit, dtmf receiver, user A hears dialing tone, and the user dials " 9 " and indicates to dial outside line.If this user is the user of no outside line authority, the system prompt busy tone, user A on-hook, slic circuit detects on-hook information, discharges all resources relevant with user A.
If this user is the user that the outside line authority is arranged, user A begins to dial the telephone number that will call out outside line user C, DTMF partly receives dialing and simultaneously dialing tone is cut off by the simulation switching matrix, wireless module by the free time is got the phone of calling out, and simultaneously user A is crossed switching matrix with the link tester of wireless module and links to each other.If the outside line user C busy call of dialing, user A on-hook discharges all resources relevant with user A.
If the phone C off-hook of being called out, user A and the user C that is dialed begin conversation.End of conversation, user A on-hook, slic circuit detects on-hook signal, discharges all resources relevant with user A, sends on-hook signal to wireless module.
If the user C on-hook of being dialed, user A with the circuit switched of user C to the busy tone generator, user C on-hook, slic circuit detects on-hook signal, discharges all resources relevant with user A.
3, interior lines utilize wire message way to call out outside line (internal user A calls out outside line user D)
User A off-hook, corresponding SLIC interface circuit detects this off hook signal, master cpu is analyzed this off hook signal, user A link tester is crossed the simulation switching matrix link to each other with audio-frequency generator circuit, dtmf receiver, user A hears dialing tone, and the user dials " 9 " and indicates to dial outside line, the system prompt busy tone, user A on-hook, slic circuit detects on-hook information, discharges all resources relevant with user A.
If this user is the user that the outside line authority is arranged, user A begins to dial the telephone number that will call out wired outside line, DTMF partly receives dialing and simultaneously dialing tone is cut off by the simulation switching matrix, wired line circuit is linked to each other with certain DTMF transmitter, control wired line circuit off-hook, the phone of calling out is got by DTMF.If the busy call of dialing, user A on-hook discharges all resources relevant with user A.
If the phone D off-hook of being called out, user A and the user D that is dialed begin conversation.End of conversation, user A on-hook, slic circuit detects on-hook signal, discharges all resources relevant with user A, controls wired line circuit on-hook.
4, outside line utilizes the wireless channel incoming call
External user is squeezed into phone by wireless module, wireless module is with this call notification system, this wireless module is connected with operator's module, dtmf receiver, external user is heard operator's sound, and external user is dialed the number of inside line E, and DTMF receives this number, this number of network analysis, control user E is connected with certain road DTMF transmitter, and the slic circuit of control user E carries out ring and sends electricity demonstration number, user E ring here.
User E off-hook, corresponding SLIC interface circuit detects this off hook signal, CPU analyzes this off hook signal, user E link tester is crossed the simulation switching matrix be connected with outside line and disconnect being connected of original wireless module and operator's module and dtmf receiver simultaneously, and user E and outside line user begin to converse.End of conversation, user E on-hook, slic circuit detects on-hook signal, discharges all resources relevant with user E and sends on-hook signal to wireless module.
If outside line user on-hook, wireless module obtains on-hook signal, and system discharges wireless module all resources relevant with user E.
5, outside line utilizes the wire message way incoming call
External user is squeezed into phone by wire module is arranged, wired outer wire module produces the ring index signal with this call notification system, there is wire module to be connected this with operator's module, dtmf receiver, control wired line circuit off-hook, external user is heard operator's sound, external user is dialed the number of inside line F, DTMF receives this number, this number of network analysis, control user F is connected with certain road DTMF transmitter, the slic circuit of control user F carries out ring and sends electricity demonstration number, user F ring here.
User F off-hook, corresponding SLIC interface circuit detects this off hook signal, CPU analyzes this off hook signal, user F link tester is crossed the simulation switching matrix is connected with outside line simultaneously and disconnects being connected of wired outer wire module and operator and dtmf receiver originally, and user F and outside line user begin to converse.End of conversation, user F on-hook, slic circuit A detects on-hook signal, discharges all resources relevant with user F, controls wired line circuit on-hook.
In master cpu control connection figure shown in Figure 2, P89C669 is a master cpu, and MT8816 is a switch fabric circuitry, and STLC3055 is the interior lines interface circuit, and MT8888 is the DTMF transceiver.
The P2.2 of P89C669～2.7 produce chip selection signal by 74HC138, are used to select 74HC373,74HC245, MT8816 and MT8888.
The interior lines interface circuit adopts 8 STLC3055 to realize that different mode of operations is controlled through 74HC373 by the P89C669 data/address bus, and STLC3055 gives master cpu (P89C669) with dislodging machine signal by 74HC245 simultaneously.When the LE of latch 74HC373 pin was high level, the input and output of latch were transparent, and data write 4 bit data to 8 SLIC3055 after latching, be used to control the mode of operation of SLIC3055.When the LE of latch 74HC373 pin was low level, output no longer changed with input.When STLC3055 detected dislodging machine signal, this signal was given P89C669 by 74HC245.
The data wire of MT8888 is connected on the data/address bus of P89C669, with the reception that realizes data, the control of sending function.Which MT8888 the chip selection signal that P89C669 produces by 74HC138 determines to select.Which internal register P89C669 selects by P3.7, P3.6 and P2.0 control MT8888.
74HC138 provides the chip selection signal of switching matrix chip, selects corresponding M T8816.MT8816 is the 8*16 analog switch array, includes 7-128 line address decoder, control lock storage and 8*16 cross point switches array.The data wire of switching matrix MT8816 directly is connected on the data/address bus of CPU, is directly controlled the break-make of different matrix dots by data/address bus.In native system, utilize two MT8816 circuit to expand to 16*16 analog switch switching network.
24WC64 is EEPROM, and being used to store still needs the data of preserving under the powering-off state, adopts the I2C bus structures, and P89C669 drives 24WC64 by SCL clock cable and SDA data signal line and carries out data write.24WC64 mainly preserves data such as IP number, number section.
Wired ring of POTS circuit part and caller identification chip adopt MC145447DW, and caller ID adopts the FSK standard.RDET is used in reference to and is shown with the line bell signal and sends P89C669 to, and DOUTC is used for sending the incoming call shows signal to P89C669.
ISD4002 is operator's chip, can realize the segmentation recording playback of voice, adopts SPI serial protocol mode to work, and is directly controlled by CPU.SCLK is a clock signal, and MOSI is a data-signal, and P89C669 passes through control SCLK and the MOSI signal sends corresponding recording and play instruction to ISD4002, and the current real-time address that while ISD4002 will record/play by the RAC pin sends P89C669 to.
Communicating by letter between two wireless modules and the CPU finished by the dual serial interface.
Fig. 3 is the master cpu circuit, this circuit is the core of hardware controls and the platform of running software, wherein U1 is enhancement mode 51 single-chip microcomputers, realize logic decoding, I/O port, bus cache and driving etc., it is connected to each functional module, finishes the control of voice, exchange and other functions to whole system.
Fig. 4 is wireless exterior-line interface circuit, and U27 is the GSM/GPRS module, and its serial line interface and CPU carry out AT order exchange, and voice call is carried out in audio interface and inside line.There are 2 identical wireless modules in system, realizes that 2 road wireless outside lines insert.
Fig. 5 is the DTMF circuit, and U24 is the DTMF transponder chip among the figure, and its interface connects CPU and switch fabric circuitry respectively.There are 3 road DTMF circuit in system, realizes the decoding and the coding of dtmf signal respectively, convenient wireless outside line and the caller ID display of inside line, the incoming call exhalation of inside line and user's the personal settings of realizing.
Fig. 6 is the simulation switch fabric circuitry, in this circuit, U22, U23 are the switching matrix chip, the switching matrix chip is the 8*16 analog switch array, 2 switching matrix chips are formed 16*16 simulation switching network, its control signal is connected to the main control module circuit, and the switching matrix point is connected to 8 tunnel inside lines, 3 road outer line caps (2 road wireless+1 tunnel are wired), 3 road DTMF circuit, 450Hz signal tone and operator circuit etc., realizes the various functions of exchange of system by the control of main control module.Each switching matrix chip comprises 7-128 line address decoder, control lock storage and 8*16 cross point switches array, is the larger circuit of present integrated switch.Its operation principle is: utilize row address AXO, AX1, AX2, the AX3 line (XO-X15) with binary code form selector switch array, and utilizing column address AYO, AY1, AY2 to select alignment, data input DATA and the sheet of array to select CS1 and CS2 to select the node break-make, effectively make address code and the data of STB are controlled the break-make of respective switch.
Claims (6)
1. a multichannel access device is characterized in that, is made up of systems control division branch, switching matrix part, interface section, interior lines, outside line interface section, DTMF transceiver module, operator's module and audio-frequency generator;
Described systems control division branch is finished the control to voice, exchange and other functions;
Described switching matrix is partly finished the whole circuit exchange between multichannel interior lines, multichannel outside line, DTMF transceiver module, operator's module, tone generator;
Described interior lines interface is handled section processes multichannel inside line interface, finishes substation off-hook detection, subscriber's line feed, ring generation;
Described outside line interface processing section comprises a plurality of wireless exterior-line interface circuits and a plurality of wired exterior-line interface circuit, finishes off-hook, ring detection and indication, hang-up tone detection;
Described DTMF transceiver module is finished the transmitting-receiving of dtmf signal;
Described operator's module finish operator's sound storage, record, play, under the control that systems control division divides, finish recording and playing of operator's sound;
Described audio-frequency generator is finished the generation of dialing tone and busy tone;
Described systems control division divides and is connected with switching matrix part, interface processing section, interior lines, outside line interface processing section, DTMF transceiver module, operator's module and audio-frequency generator respectively;
Described switching matrix part is connected with interface processing section, interior lines, outside line interface processing section, DTMF transceiver module, operator's module and audio-frequency generator respectively.
2, multichannel access device according to claim 1 is characterized in that, described systems control division divides and mainly comprises master cpu and peripheral circuit.
3. multichannel access device according to claim 2 is characterized in that, described peripheral circuit comprises decoding logic circuit, I/O port circuit, bus cache and drive circuit.
4. multichannel access device according to claim 2, it is characterized in that, described master cpu is connected with other ancillary equipment by bus and I/O port, finish control, communicate by letter with wireless exterior-line interface circuit by serial line interface to switching matrix part, operator's module, DTMF transceiver module, interface processing section, interior lines and memory.
5. multichannel access device according to claim 2 is characterized in that, described master cpu circuit adopts the P89C669 chip.
6. multichannel access device according to claim 1 is characterized in that, described switching matrix partly utilizes two MT8816 circuit to constitute 16*16 analog switch switching network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520105906 CN2862539Y (en) | 2005-12-15 | 2005-12-15 | Multipath switch-in apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520105906 CN2862539Y (en) | 2005-12-15 | 2005-12-15 | Multipath switch-in apparatus |
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| CN2862539Y true CN2862539Y (en) | 2007-01-24 |
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| CN 200520105906 Expired - Lifetime CN2862539Y (en) | 2005-12-15 | 2005-12-15 | Multipath switch-in apparatus |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012031470A1 (en) * | 2010-09-06 | 2012-03-15 | 中兴通讯股份有限公司 | Mobile terminal |
| WO2012031469A1 (en) * | 2010-09-06 | 2012-03-15 | 中兴通讯股份有限公司 | Mobile terminal |
| CN103051816A (en) * | 2012-12-10 | 2013-04-17 | 深圳市东微智能科技有限公司 | Digital audio matrix and telephone conference system |
| CN106100683A (en) * | 2016-08-23 | 2016-11-09 | 成都中亚通茂科技股份有限公司 | A kind of shortwave switching matrix sharing system using radio communication |
| CN106100684A (en) * | 2016-08-23 | 2016-11-09 | 成都中亚通茂科技股份有限公司 | A kind of Novel movable communication system supporting shortwave switching matrix |
| CN114706799A (en) * | 2022-03-30 | 2022-07-05 | 江苏肯立科技股份有限公司 | Low-delay monitoring device and method for 256 multiplied by 256 switching matrix |
-
2005
- 2005-12-15 CN CN 200520105906 patent/CN2862539Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012031470A1 (en) * | 2010-09-06 | 2012-03-15 | 中兴通讯股份有限公司 | Mobile terminal |
| WO2012031469A1 (en) * | 2010-09-06 | 2012-03-15 | 中兴通讯股份有限公司 | Mobile terminal |
| CN102387611A (en) * | 2010-09-06 | 2012-03-21 | 中兴通讯股份有限公司 | Mobile terminal |
| CN102387243A (en) * | 2010-09-06 | 2012-03-21 | 中兴通讯股份有限公司 | Mobile terminal |
| CN103051816A (en) * | 2012-12-10 | 2013-04-17 | 深圳市东微智能科技有限公司 | Digital audio matrix and telephone conference system |
| CN103051816B (en) * | 2012-12-10 | 2015-08-19 | 深圳市东微智能科技有限公司 | A kind of digital audio matrix and TeleConference Bridge |
| CN106100683A (en) * | 2016-08-23 | 2016-11-09 | 成都中亚通茂科技股份有限公司 | A kind of shortwave switching matrix sharing system using radio communication |
| CN106100684A (en) * | 2016-08-23 | 2016-11-09 | 成都中亚通茂科技股份有限公司 | A kind of Novel movable communication system supporting shortwave switching matrix |
| CN114706799A (en) * | 2022-03-30 | 2022-07-05 | 江苏肯立科技股份有限公司 | Low-delay monitoring device and method for 256 multiplied by 256 switching matrix |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070124 |
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| EXPY | Termination of patent right or utility model |