CN1177414C - Rural electric circuit synchronous-transmission wide-narrow band digital information switch-in network system - Google Patents

Rural electric circuit synchronous-transmission wide-narrow band digital information switch-in network system Download PDF

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CN1177414C
CN1177414C CNB01141779XA CN01141779A CN1177414C CN 1177414 C CN1177414 C CN 1177414C CN B01141779X A CNB01141779X A CN B01141779XA CN 01141779 A CN01141779 A CN 01141779A CN 1177414 C CN1177414 C CN 1177414C
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wide
information
circuit
multichannel
narrow strip
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CN1405988A (en
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张会庭
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Abstract

The present invention relates to a synchronous transmission wide-narrow band digital information access network system of a countryside power line, which comprises a three-phase high-voltage power line, a high-frequency trap, a combined filter, a transformer station and a low-voltage power line. The present invention also comprises a countryside town power line synchronous transmission wide-narrow band digital access network device connected with a three-phase high-voltage power line, and a village grade power line synchronous transmission wide-narrow band information network which comprise a countryside town multiple-line wide-narrow band information station connected with an ATM transmission interface, a village grade multiple-line wide-narrow band information station and a countryside town to village grade power line transmission multiple-line wide-narrow band information device. The present invention also comprises a small-size microwave relay device which is used for the mutual connection between adjacent villages of different countryside towns. The transmission of the access network system is carried out in an ATM mode, and the large-capacity high-speed wideband digital access network can be realized. In the transmitting device, the total speed rate and the total capacity of the access network are expanded by adopting a digitized narrowband anti-interference and frequency range compression technology. A 'one kilometer problem ' by installing the wideband network in a room is solved by using standard and special room entering short lines.

Description

The rural electric circuit synchronous-transmission wide-narrow band digital information switch-in access net system
Technical field
The present invention relates to a kind of access net system, specifically, is the access net system that a kind of rural area, middle samll cities and towns, the outer suburbs, big and medium-sized cities and community utilize power circuit simultaneous interpretation wide and narrow strip digital information.
Background technology
Power circuit is transmitting on the frequency spectrum of electric power energy, is used for carry high frequency information again, abbreviates simultaneous interpretation as.At present, usually the backbone network transmission rate more than 2.5Gb/s, the network that the Access Network transmission rate reaches 1Mb/s is called broadband networks.The wide-band-message of the following stated is meant digital high-definition television and Digital Television etc.The method of existing transmission wide and narrow strip information has digital optical cable, cable, ground and satellite microwave trunk etc., and it is expensive big to build these circuits, and the time is long, needs the professional to safeguard.Research and experiment proves, the present high and low pressure power circuit that samll cities and towns exist in a large number in the rural area reaches, and they are a kind of high-quality wide-band-message transmission mediums.
According to reports, external at present, for example countries such as Korea S, Japan, Canada, Germany, Austria, Switzerland are developing the high speed demodulator of surfing the Internet of power line transmission, also in research and development high-speed wideband power line transmission new way---power line communication new technology.
In the period of the 1993-1999, the inventor has applied for three Chinese invention patents in power line using multi-path digital phone and digital information transmission and communication system over data network of digitalized power transmission lines field.But above-mentioned patent of invention of having applied for does not directly relate to rural electric circuit synchronous-transmission wide-narrow band digital information switch-in access net system of the present invention with the research and development in this technical field abroad.
Summary of the invention
The objective of the invention is to be vast in territory, populous rural area, middle samll cities and towns, a kind of access net system that utilizes existing power circuit simultaneous interpretation wide and narrow strip digital information is provided.
Rural electric circuit synchronous-transmission wide-narrow band digital information switch-in access net system of the present invention, comprise three-phase high-voltage power line road, with the three-way high-frenquency current blocking device that is connected in three-phase high-voltage power line road, small towns transformer station, at village level transformer, the filter joint that is connected with three-phase high-voltage power line road two lines; Wherein: described access net system also comprises: the small towns power circuit simultaneous interpretation wide and narrow strip numeral access network equipment and the at village level power circuit simultaneous interpretation wide and narrow strip information network that link to each other with three-phase high-voltage power line road, described small towns power circuit simultaneous interpretation wide and narrow strip numeral access network equipment comprises the high-frenquency current blocking device that links to each other according to counterclockwise order, filter joint, the small towns is at village level power circuit transmission multichannel wide and narrow strip information equipment, multichannel multimedia broad band information generator-condensing encoder, the ATM coffret, small towns multichannel wide and narrow strip information station, intend at village level power circuit simultaneous interpretation wide and narrow strip information network and small towns transformer station, small towns multichannel wide and narrow strip information station also is connected with multichannel multimedia broad band information generator-condensing encoder with small towns at village level power circuit transmission multichannel wide and narrow strip information equipment; Described at village level power circuit simultaneous interpretation wide and narrow strip information network comprises is docile and obedient high-frenquency current blocking device, filter joint, at village level multichannel wide and narrow strip information station, low-voltage power line, high frequency choke apparatus and at village level transformer and the electric power that is connected with low-voltage power line and the information user's equipment that the hour hands order links to each other; Intending at village level power circuit simultaneous interpretation wide and narrow strip information network comprises and is docile and obedient the at village level multichannel wide and narrow strip of high-frenquency current blocking device, filter joint, plan information station, low-voltage power line and high frequency choke apparatus and the electric power that is connected with low-voltage power line and the information user's equipment that the hour hands order links to each other, its high frequency choke apparatus is connected with small towns transformer station, intends at village level multichannel wide and narrow strip information station and constitutes identical with the circuit of at village level multichannel wide and narrow strip information station; The ATM coffret is the interface between described access net system and the main line.
Wherein, described small towns at village level power circuit transmission multichannel wide and narrow strip information equipment comprises: with coaxial cable high-frequency line interface and multichannel multimedia wide and narrow strip information co-shunt device and the transceiver equipment that filter joint is connected successively, the multichannel 18.8Mb/s digital compression high definition TV transmitting device and the 18.8M/s information input port thereof that link to each other with multichannel multimedia wide and narrow strip information co-shunt device and transceiver equipment, multichannel 7.6Mb/s digital television transfer equipment and 7.6Mb/s information input port thereof, multichannel 2Mb/s digital videophone transmitting-receiving extension set and 2Mb/s information transmitting terminal input port and multichannel 2Mb/s digital videophone delivery outlet, multichannel 33.6Kb/s computer telephone integration communication equipment and multichannel 4KHZ telephone line two line interfaces thereof; The circuit of multichannel 18.8Mb/s digital compression high definition TV transmitting device and multichannel 7.6Mb/s digital television transfer equipment constitutes identical, and all with input information through the multi-system width of cloth---phase complex modulated, medium-high frequency two-stage single-side band modulation; The input information of multichannel 2Mb/s digital videophone transmitting-receiving extension set and multichannel 33.6Kb/s computer telephone integration communication equipment is all through the multi-system width of cloth---and complex modulated, medium-high frequency two-stage single-side band modulation mutually, its output information is all through the monolateral band counter modulation of high intermediate frequency two-stage, the multi-system width of cloth---mutually compound demodulation.
---mutually compound demodulator is by the multi-system width of cloth---the phase complex modulated device and the multi-system width of cloth---, and mutually compound demodulator constitutes the described multi-system width of cloth; The described multi-system width of cloth---phase complex modulated device is by the string that links to each other successively with the binary message input port-and translation circuit, modulation circuit that the two-way circuit structure is identical and CF signal differ from the modulation circuit of 90 degree phase shifts, the linear adder device, matched impedance low-pass filter circuit and NQAM modulator delivery outlet and high steady accuracy crystal oscillator and 90-degree phase shifter composition that CF signal is provided, described modulation circuit is by the binary system multi-system transducer that links to each other successively, the matched impedance attenuator, low pass filter roll-offs, matched impedance attenuator and linear modulator constitute, described matched impedance low-pass filter circuit is made up of low pass filter and the matched impedance attenuator that is connected in its two ends, the CF signal of the linear modulator of one tunnel modulation circuit is sinusoidal wave, the CF signal of the linear modulator of the modulation circuit on another road is a cosine wave, and NQAM modulator delivery outlet is connected with the input of medium-high frequency single side-band modulator; The described multi-system width of cloth---mutually compound demodulator is by the counter output of transferring device of the monolateral band of medium-high frequency that links to each other successively, revenue and expenditure road band pass filter amplifier, splitter, counter modulation circuit that the two-way circuit structure is identical and CF signal differ from the counter modulation circuit of 90 degree phase shifts, OR circuit, paired inverter and NQAM demodulator delivery outlet and the CF signal restore circuit that CF signal is provided, 90-degree phase shifter and bit synchronization are regularly, two-way selects pulse and frequency dividing circuit to constitute, described counter modulation circuit is by the linear anti-device of transferring that links to each other successively, low pass filter-matched impedance attenuator roll-offs, the multi-system binary translator, the sequence of binary digits regenerator is formed, the CF signal of the linear anti-accent device of one tunnel counter modulation circuit is sinusoidal wave, and the CF signal on another road is a cosine wave; Synchronization timing circuit and provide the input signal of the CF signal restore circuit of CF signal to provide by the low pass filter that the roll-offs-matched impedance attenuator of two-way.
Rural electric circuit synchronous-transmission wide-narrow band digital information switch-in access net system of the present invention, described at village level multichannel wide and narrow strip information station comprises: the multichannel wide and narrow strip information transmit-receive deciliter road device that is connected with filter joint, receive the amplification conversion equipment with the multichannel wide and narrow strip information transmit-receive deciliter wide-band-message that the road device links to each other, 2Mb/s digital videophone high-frequency information transceiver, 33.6Kb/s computer telephone integration communication hf transceiver reaches or the mixer and the splitter of microwave relay unit, with 2Mb/s digital videophone high-frequency information transceiver with 33.6Kb/s the computer telephone integration stored-program control exchange that hf transceiver is connected of communicating by letter, the switch that links to each other with stored-program control exchange is to user's 220 hint road transmission system devices, and switch all is connected with low-voltage power line four lines by its high pressure resistant capacitor with wide-band-message reception amplification dispensing device to user's 220 hint road transmission system devices; The communicate by letter circuit of hf transceiver of computer telephone integration constitutes identical 2Mb/s digital videophone high-frequency information transceiver with 33.6Kb/s; Described stored-program control exchange comprises toll trunk device, user's relaying and interface circuit, signaling-information processing unit and the CPU that links to each other with the space switching matrix; Described switch comprises that to user's 220 hint road transmission system devices the circuit of two groups of parallel connections constitutes identical telephone circuit, and the input signal of telephone circuit is through medium-high frequency two-stage single-side band modulation, and its output signal is through the monolateral band counter modulation of high intermediate frequency two-stage.
Rural electric circuit synchronous-transmission wide-narrow band digital information switch-in access net system of the present invention, described electric power and information user's equipment comprise: the lane power line that joins with low-voltage power line, a kind of custom power information equipment that is connected with the lane power line and or the standardization that is connected with the lane power line electric wire of registering one's residence by insulator and insulation porcelain bar construction, with the standardization another kind of custom power information equipment that electric wire is connected of registering one's residence, described a kind of custom power information equipment comprises user's multichannel multimedia wide and narrow strip digital information terminal and the transceiver that clockwise preface links to each other, the cable that the transmitting high-frequency signal decay is little, impedance matching high frequency transformer, trap and power-supply filter and user's power supply load; Described another kind of custom power information equipment comprises user's multichannel multimedia wide and narrow strip digital information terminal and transceiver, high pressure resistant capacitor, trap and power-supply filter and the user's power supply load that clockwise preface links to each other; Described user's multichannel multimedia wide and narrow strip digital information terminal and transceiver comprise an elementary winding secondary many windings high frequency transformer and coupled high-frequency wideband apparatus of digital television receiving, user 2Mb/s digital videophone equipment and computer telephone integration communication equipment; The input signal of high-frequency wideband apparatus of digital television receiving is delivered to receiving terminal for digital television through filtering, amplification, the monolateral band counter modulation of high intermediate frequency and the multi-system width of cloth---mutually compound demodulator; The input signal of user 2Mb/s digital videophone equipment is through amplification, filtering, the anti-device and the multi-system width of cloth---the mutually compound demodulator of transferring of the monolateral band of high intermediate frequency, send into 2Mb/s digital videophone terminating machine, the output signal of 2Mb/s digital videophone terminating machine is through the multi-system width of cloth---phase complex modulated device, filtering, medium-high frequency single side-band modulator and amplification, send into the secondary many windings high frequency of elementary winding transformer; The input signal of computer telephone integration communication equipment is through amplification, filtering, anti-device and the 33.6Kb/s demodulator transferred of the monolateral band of high intermediate frequency, send into computer or through the digital telephone terminal, controlled by the functional mapping unit, the secondary many windings high frequency of elementary winding transformer is sent in output signal warp≤33.6Kb/s demodulator, filtering, medium-high frequency single side-band modulator and the amplification of computer or telephone set.
Rural electric circuit synchronous-transmission wide-narrow band digital information switch-in access net system of the present invention, described high-frequency wideband apparatus of digital television receiving are 7.6Mb/s digital television receiver or 18.8Mb/s digital high-definition television machine.
Rural electric circuit synchronous-transmission wide-narrow band digital information switch-in access net system of the present invention, described small towns wide and narrow strip information station comprises: provided the 64Kb/s2048Kb/s standardization converter unit that links to each other successively of clock signal to transmit the tandem Switching Module NQAM converter unit that multichannel wide and narrow strip information equipment links to each other with Long-distance Switching Equipments and with 64Kb/s2048Kb/s standardization converter unit and small towns at village level power circuit by the steady accuracy timing system of height generator, be connected with the plan at village level multichannel wide and narrow strip information station identical with at village level multichannel wide and narrow strip information station formation with tandem Switching Module NQAM converter unit; Described Long-distance Switching Equipments is digital time division circuits Long-distance Switching Equipments or atm switching apparatus, and is connected with the optical cable or the microwave line of main line through the atm interface based on SDH; Atm interface based on SDH is also provided clock signal or is sent timing signal mutually by the steady accuracy timing system of height generator.
The interconnected systems between the village is closed in a kind of two small towns that are used for rural electric circuit synchronous-transmission wide-narrow band digital information switch-in access net system of the present invention, described interconnected systems comprises that formation is identical, be located at the following equipment that this closes on two villages respectively: wide and narrow strip information InterWorking Equipment and microwave relay unit, described microwave relay unit is by the small microwave relay transceiver of band microwave relay antenna, constitute with receipts IF interface and the splitter that output with small microwave relay transceiver is connected successively with send out IF interface and mixer that the input of small microwave relay transceiver is connected successively; Described wide and narrow strip information InterWorking Equipment is reached the coaxial cable that links to each other successively with its filter joint by at village level power circuit simultaneous interpretation wide and narrow strip information network, divide mixer, high frequency differential network and parallel high-frequency single side band modulated amplifier that is used to export and the high-frequency single side band modulated amplifier that is used to import, divide another road of mixer to link to each other with the at village level multichannel wide and narrow strip information station of at village level power circuit simultaneous interpretation wide and narrow strip information network, the input of the mixer of microwave relay unit is provided by the output of at village level multichannel wide and narrow strip information station and the high-frequency single side band modulated amplifier that is used to export; The high-frequency single side band modulated amplifier that the output of the splitter of microwave relay unit is given at village level multichannel wide and narrow strip information station and is used to import.
Rural electric circuit synchronous-transmission wide-narrow band digital information switch-in access net system of the present invention, its advantage is to utilize the existing power circuit, transmit in asynchronous transfer mode (ATM (Asycronous Transfer Mode)) mode, but simultaneous interpretation at a high speed, large capacity digital information; Because the present invention used the multi-system width of cloth---mutually compound demodulator (NQAM (Numerable Quadrature AmplitudeModulation)) and the monolateral band transmission technology of medium-high frequency, thus compress and saved power circuit simultaneous interpretation wide and narrow strip digital information bandwidth; The present invention disturbs big characteristics according to power circuit again, at village level low-voltage power line is divided into street line, lane line and the tie-in line of registering one's residence, on the circuit of registering one's residence, install the anti-jamming power-supply filter additional, have the rain and snow performance the standardization of two power lines can be registered one's residence and or have impedance matching joint, the little two kinds of power lines of standard coaxial cable of the decay technical measures of registering one's residence, solved " one kilometer difficult problem " that broadband networks is registered one's residence; Also adopted narrow-band reception and error correcting technique and the most wide band information frequency spectrum is arranged on peak low band, narrow band information frequency spectrum is arranged at high band; These technical measures make the simultaneous interpretation total capacity of power overhead network and total speed near optical cable, can insert more jumbo broadband integrated services digital network and reach voluntarily and network; The present invention also provides a kind of computer telephone integration communication equipment for the user, is convenient to subscriber computer, phone is online selects for use; The present invention also provides two small towns in a kind of described access net system to close on the interconnected systems of using wireless relay between the village, makes the information of this Access Network relay more direct, more guaranteed.
The multiplexing of at village level low-voltage power line wide and narrow strip information adopts following multichannel cutting techniques to finish: (0-A, 0-B 0-C) form space division multiplexing to three low-voltage circuits, insert programme-controlled exchange machine local repeater respectively; By band segmentation channeling carrier channel, each channel is received local repeater and Subscriber Line Interface Circuit respectively; Each Subscriber Line Interface Circuit only has unique telephone number to receive a user, and it is shared that each channel again can a plurality of user time-sharings, the high-frequency information of digital broadband TV information user's receiving terminal machine that goes directly, by the user directly choosing see channel.
Rural electric circuit synchronous-transmission wide-narrow band digital information switch-in access net system of the present invention, be applicable to that big or middle city suburbs utilize power circuit to build Access Network, the samll cities and towns, small towns and the rural area thereof that are specially adapted near main line utilize existing power circuit to build Access Network.
Description of drawings
Fig. 1 is a rural electric circuit synchronous-transmission wide-narrow band digital information switch-in access net system pie graph of the present invention;
Fig. 2 is that the small towns is at village level power circuit transmission multichannel wide and narrow strip information equipment composition diagram;
Fig. 3 is at village level multichannel wide and narrow strip information station pie graph;
Fig. 3 A is the 220 hint road transmission system device circuit figures of the switch of Fig. 3 to the user;
Fig. 4 is electric power and information user's equipment pie graph;
Fig. 4 A is user's multichannel multimedia wide and narrow strip digital information terminal and the transceiver circuitry figure of Fig. 4;
Fig. 5 is the multi-system width of cloth---mutually compound demodulator circuit diagram;
Fig. 5 A is the linear modulator circuit diagram of Fig. 5;
Fig. 5 B is the 90-degree phase shifter circuit diagram of Fig. 5;
Fig. 6 is a single-side band modulation hf transceiver circuit diagram;
Fig. 6 A is prime power amplification and the circuit band pass filter circuit figure of Fig. 6;
Fig. 7 is computer telephone integration communicating equipment circuit figure;
Fig. 8 is close between the village Wireless Networking pie graph of described Access Network in different small towns;
Fig. 9 is a small towns multichannel wide and narrow strip information station pie graph.
Embodiment
Below in conjunction with embodiment rural electric circuit synchronous-transmission wide-narrow band digital information switch-in access net system of the present invention is described further.
Referring to Fig. 1.Fig. 1 is a rural electric circuit synchronous-transmission wide-narrow band digital information switch-in access net system pie graph of the present invention, and the corresponding label of used unit or circuit and interconnecting is described as follows: 1 three-phase high-voltage power line road; 2 high-frenquency current blocking devices, i.e. inductance coil, electric capacity and grounding safety device are with 1 three-way connection of three-phase high-voltage power line road; 3 filter joints are made of high pressure resistant capacitor and safety device, are connected with 1 two wires, three-phase high-voltage power line road; Calculate with practice and show that under installed module 2,3 conditions, the decay of three-phase power circuit high-frequency information transmission kilometer is much smaller than standard coaxial cable; But the power circuit noise jamming is big, must take the anti-interference and narrow band transmission technology of numeral, can transmit multichannel wide and narrow strip information; 4 small towns transformer stations are with 1 three-way connection of three-phase high-voltage power line road; 5 at village level transformers are with 1 three-way connection of three-phase high-voltage power line road; 6 small towns are at village level power circuit transmission multichannel wide and narrow strip information equipment, link to each other with three-phase high-voltage power line road 1 by filter joint 3, it comprises hf transceiver, the anti-device of transferring of medium-high frequency single-side band modulation, multichannel 18.8Mb/s, multichannel 7.6Mb/s Digital Television, digital data modulator, multichannel 2Mb/s digital videophone and 33.6Kb/s computer telephone integration communication medium-high frequency demodulator; 8 multichannel multimedia broad band information generator-condensing encoders, be existing mature technology, use international standard, the MPGE-2 standard speed 18.8Mb/s digital high-definition television and the 7.6Mb/s Digital Television that comprise international ISO, module 8 is connected with ATM coffret 10 and small towns at village level power circuit transmission multichannel wide and narrow strip information equipment 6; 9 small towns multichannel wide and narrow strip information stations are switching and the switching centers that are made of local area network (LAN), adopt ATM (asynchronous transfer mode) access technology, can insert big capacity broadband integrated services digital network at a high speed; Be connected between the multichannel wide and narrow strip information station 9 in this small towns and small towns transformer station 4 and module 11 constitutes the identical at village level multichannel wide and narrow strip of plan information station 12, multichannel wide and narrow strip information station 9 and module 6,8 are connected with 10; The 10ATM coffret is the interface of described access net system and main line; 11 at village level multichannel wide and narrow strip information stations, it comprises at village level high-voltage electric power circuit width information transmission equipment, at village level this locality and Long-distance Switching Equipments, high-voltage electric power circuit transmission in broadband converts the low-voltage power line transmission equipment to; 12 intend at village level multichannel wide and narrow strip information station; 13 intend at village level power circuit simultaneous interpretation wide and narrow strip information network, and its circuit constitutes identical with at village level power circuit simultaneous interpretation wide and narrow strip information network, and just low-voltage power line is this small towns; 14 low-voltage power lines, three groups of 220V power circuits forming by A, B, C and 0 line; 15 high frequency choke apparatus are made up of inductance coil; 16 electric power and information user's equipment; In the left side on three-phase high-voltage power line road 1 is at village level power circuit simultaneous interpretation wide and narrow strip information network, comprise the high-frenquency current blocking device 2 that links to each other successively by clockwise preface, filter joint 3, at village level multichannel wide and narrow strip information station 11, low-voltage power line 14, high frequency choke apparatus 15, at village level transformer 5 and the electric power that links to each other with low-voltage power line 14 and information user's equipment 16, on the right side on three-phase high-voltage power line road 1 is small towns power circuit simultaneous interpretation wide and narrow strip numeral access network equipment, comprise the high-frenquency current blocking device 2 that links to each other according to counterclockwise order, filter joint 3, the small towns is at village level power circuit transmission multichannel wide and narrow strip information equipment 6, multichannel multimedia broad band information generator-condensing encoder 8, ATM coffret 10, small towns multichannel wide and narrow strip information station 9, intend at village level power circuit simultaneous interpretation wide and narrow strip information network 13 and small towns transformer station 4, small towns multichannel wide and narrow strip information station 9 also is connected with multichannel multimedia broad band information generator-condensing encoder 8 with small towns at village level power circuit transmission multichannel wide and narrow strip information equipment 6; Intending at village level power circuit simultaneous interpretation wide and narrow strip information network constitutes identical with the circuit of at village level power circuit simultaneous interpretation wide and narrow strip information network; ATM coffret 10 is the interface of described access net system and main line; When between its higher level county, not setting up trunk lines such as optical cable as yet when this small towns, can utilize with the small towns to the identical circuit structure of at village level power circuit transmission multichannel wide and narrow strip information equipment 6, by three-phase high-voltage power line road 1, to a plurality of power circuit simultaneous interpretation wide and narrow strip information network transmission multichannel wide and narrow strip information at county town, this information network constitutes identical with the circuit of above-mentioned at village level power circuit simultaneous interpretation wide and narrow strip information network.
The at village level multichannel wide and narrow strip of the plan information station 12 of the at village level power circuit simultaneous interpretation of the plan in small towns wide and narrow strip information network 13, low-voltage power line 14 by this small towns links to each other with electric power and information user's equipment 16 in this small towns, and the low-voltage power line 14 in this small towns is connected with the small towns transformer station 4 in this small towns; The circuit of intending at village level multichannel wide and narrow strip information station 12 and at village level multichannel wide and narrow strip information station 11 constitutes identical and also is connected with three-phase high-voltage power line road 1 by filter joint 3; According to the size in small towns, can establish the at village level power circuit simultaneous interpretation of a plurality of plans wide and narrow strip information network 13.
Referring to Fig. 2.Fig. 2 is the power circuit transmission multichannel width information equipment composition diagram of the module 6 among Fig. 1: 25 multichannel 18.8Mb/s digital compression high definition TV transmitting devices; The 26th, 18.8M/s information input port is from the module among Fig. 18,9; The 27th, the 18.8Mb/s wideband digital multi-system width of cloth---phase complex modulated device, in order to compress transmission bandwidth, the modulation of employing M-ary orthogonal, also claim the multi-system width of cloth---the phase complex modulated, be abbreviated as NQAM, when the low pass filter rolloff-factor was very little in N=256 and the modulator, then information spectrum base band is wide was 1/8th of speed, i.e. power circuit message transmission band compression Lg 2N doubly; 28 is 18.8Mb/s NQAM signal medium-high frequency single side-band modulator; 29 multi-path digital high definition TV high frequency senders; 30 multi-path digital TV transmissioning equipments; The 31st, 7.6Mb/s information input port is from the module among Fig. 18,9; The 32nd, the 7.6Mb/s digital modulator adopts 256QAM equally, and its frequency spectrum base band is wide to be 0.975MH; The 33rd, 7.6Mb/s NQAM signal medium-high frequency single side-band modulator; 34 multi-path digital television high frequency senders; 35 multi-path digital video telephone transmitting-receiving extension set; The 36th, 2Mb/s information transmitting terminal input port; The 37th, the 2Mb/s information modulator also adopts NQAM, and when N=256, its output spectrum base band is 250KHZ; The 38th, 2Mb/s information medium-high frequency single side-band modulator; 39 frequency multiplexing 2Mb/s information are closed road and transmitting device; 40 multichannel 2Mb/s information high frequency differential networks, it finishes the switching of high frequency two-four lines; The 41st, 2Mb/s information revenue and expenditure road high frequency branch apparatus can be finished by high frequency transformer group; 42 is the high intermediate frequency SSB demodulator of 2Mb/s information; The 43rd, 2Mb/s information NQAM demodulator; 44 multichannel 2Mb/s digital videophone delivery outlets; 45 multichannel 33.6Kb/s computer telephone integration communication equipments; 46 multichannel 4KHZ telephone lines, two line interfaces, 33.6Kb/s demodulator and computer telephone integration terminal are located at the user place; 47 2-four line converting networks, for example available SJ0612 integrated circuit is finished; 48 medium-high frequency single-side band modulation circuit are for example finished with MC1596 chip, resistors match attenuator and filter; 49 multichannel 33.6Kb/s narrow band information are closed road and dispensing device, for example finish with transformer and operational amplifier; 50 is multichannel 33.6Kb/s information high frequency differential network, finishes transmitting-receiving two-four line conversion; 51 multichannel 33.6Kb/s information high frequencies receive and branch apparatus, also can be finished by transformer exclusive disjunction amplifier; The anti-device of transferring of the monolateral band of 52 medium-high frequencies also can be finished by MC1596 and peripheral resistance, capacitor and filter circuit; 53 2-four line converting networks; 54 multichannel multimedia wide and narrow strip information co-shunt device and transceiver equipments for example adopt passive variant device group to finish; 55 coaxial cable high-frequency feed line interfaces, interface impedance is 75 Europe, this feeder line is connected to the module 3 among Fig. 1.
Referring to Fig. 3.Fig. 3 is the at village level multichannel wide and narrow strip information station pie graph of the module 11 among Fig. 1, its direction by 1 three-phase high-voltage power line road and the small towns power circuit simultaneous interpretation wide and narrow strip digital information access network equipment among Fig. 1 to leading to, to leading to, this at village level multichannel wide and narrow strip information station is the important component part of at village level power circuit simultaneous interpretation wide and narrow strip information network to other direction by 14 low-voltage power line and 16 electric power and information user's equipment; 56 multichannel wide and narrow strip information transmit-receive deciliter road devices, it reaches the isostatic compensation network that is made of resistance, inductance and capacitor by high frequency differential network, deciliter road transformer and forms; Its right is connected to 3 filter joint, and the left side is connected to 14 low-voltage power line by module 57,63,72,73 and 85; 57 wide-band-messages receive and amplify retransmission unit; The 58th, 18.8Mb/s high definition TV HF link filter, it is made up of inductance, capacitor, and the matched attenuator before and after it is made up of resistance; 59 high-frequency wideband amplifiers for example adopt CF2620/2625 type operational amplifier; The 60th, 7.6Mb/s Digital Television HF link filter, it is formed with 58, and only frequency bandwidth is different with 58; The 61st, the high-frequency wideband amplifier constitutes identically with 59, and only frequency bandwidth is different; 62 multichannel wide-band-message mixer and adapters, it is made up of many windings transformer and operational amplifier, and its output is connected to low-voltage power line 14 through 19 high pressure resistant capacitor; The 63rd, 2Mb/s digital videophone high-frequency information transceiver; 64 high frequency differential networks are made up of capacitor, inductance and the resistance of differential transformer and balancing circuitry; 65 revenue and expenditure road filter amplifiers are made up of inductance, resistance, electric capacity, MA733 operational amplifier; 66 shunt transformer and compensating networks; The 67th, the anti-device of transferring of the monolateral band of the high intermediate frequency of 2Mb/s, it is made up of MC1596 multiplier and inductance capacitor single sideband filter; 68 2-four line converting networks are made up of differential transformer and electric capacity, resistance balance circuit, and this parts two wires terminates to the toll trunk device 74 of programme-controlled exchange; The 69th, 2Mb/s medium-high frequency single side-band modulator is made up of MC1596 chip and inductance, electric capacity and band pass filter; 70 is the high frequency combiner of 2Mb/s, is made up of transformer and inductance, capacitance compensation net; 71 high-frequency wideband amplifiers, the line filter that for example adopts MA733 operational amplifier and inductance, electric capacity to form; The 72nd, 33.6Kb/s computer telephone integration communication hf transceiver, 64-71 forms by module, and is identical with 63 formations, and different is that frequency location and passband are wide, i.e. carrier frequency height, one tunnel unidirectional pass band is spaced apart 4KHZ; 73 stored-program control exchanges for stored-program control exchange local and long-distance unification, are realized communicating by letter of video telephone and computer telephone integration communication terminal; 74 toll trunk devices comprise the MA733 amplifier, finish two-way amplification, and the MT8880 touch-tone signal sends and receiver, integrated circuits such as 74273 types, eight d type flip flops and 74244 types, eight homophase tristate buffer/line drives; 75 user's relaying and interface circuits comprise 88500 type Subscriber Line Interface Circuit, 74273,74244 circuit such as grade; 76 space switching matrixes for example adopt MT8816, and its operating frequency can reach 45MHZ, and it finishes long-distance exchange of communicating by letter with local user's video telephone, computer telephone integration, wiring task under program control; 77 signaling-information processing units, it comprises 8880,8870 type dual-tone multifrequency transmissions and receiver and 74273, chips such as 74244, at program control and switching network 76, user's repeat circuit 75 and 85 cooperates work down; 78 CPU (CPU) are for example with the Z-80B or the CPU of high throughput more; 79 clock generators are as 6MHZ crystal oscillator or higher frequency crystal oscillator; 80 random-access memory (ram)s are one or two 6116 types or 6264 types or other model C MOS static RAM; 81 EPROM (Erasable Programmable Read Only Memory) (EPROM) are as 27C128 type EPROM (Erasable Programmable Read Only Memory); 82 address decoders are 74LS138 type 3 lines-8 line address decoder and 74139 type 2 lines-4 line address decoders; 83 data/address buss; 84 address buss; 85 switches are to user's 220 hint road transmission system devices, Fig. 3 A is its physical circuit figure, constituting identical parallel telephone circuit 98,99 by two circuit forms: 86 is two-four line converting networks, what pass through is 2Mb/s video telephone digital video signal, for example fundamental frequency is 250KHZ, 87 2-four line converting networks are by the 33.6Kb/s information within the 4KHZ; 88 medium-high frequency two-stage single side-band modulators, it is by MC1596 chip and electric capacity, and band pass filter that inductance and resistance are formed and matched attenuator constitute; 89 high-frequency operational amplifiers for example adopt TCA0372 power amplifier or triode power amplifier; 90 high frequency differential networks are made up of differential transformer and electric capacity, resistance or inductance balance circuit; The anti-device of transferring of the monolateral band of 91 high intermediate frequency two-stages, band pass filter, resistance attenuator that it is made up of high-frequency amplifier and MC1596 chip and inductance, electric capacity are finished; 92 amplifiers for example adopt the MA733 amplifier; 98 telephone circuits; 99 another telephone circuits, identical with 98 circuit, just their frequency locations are different with bandwidth.
Referring to Fig. 4.Fig. 4 is electric power and information user's equipment pie graph, and promptly the module among Fig. 1 16 comprises module 19,131 and 100-109; Module 1,3,5,14,15 and 19 implication are described with the front among this figure; Draw through at village level transformer 5 on three-phase high-voltage power line road 1, can be divided into three sections behind high-frequency choke device 15: low-voltage power line 14 is first section, is called the street line again, and length is about one kilometer; 100 is second section, is the lane power line, and length is hundred meter levels; 101 or 104 is the 3rd section, i.e. user roof service wire, and length is ten meter levels; Usually first and second section power line is an aerial line, and the kilometer transmission attenuation is little, is beneficial to the transmission broadband high-frequency information; The 3rd section is service wire, and directly with household electrical appliances and connect, load is big, and resistance is little, and household electrical appliances disturb big, and the bad grade of line condition causes decay greatly, is unfavorable for transmission broadband high-frequency information signal; The present invention has taked following technology: the one, improve service wire (ten meter levels); The 2nd, device 15 and 19 modules; The 3rd, anti-jamming power-supply filter etc. is installed, thereby has been increased the service wire transmission bandwidth; The 101 standardization power line line attachments of registering one's residence comprise module 102 and 103; 102 insulators, insulating properties is good; 103 insulation porcelain rods, it is supported on the insulator, makes two power lines keep the spacing of regulation; The cable that 104 transmitting high-frequency signals decay is little, for example in, large diameter coaxial cable; 105 impedance matching high frequency transformers; 106 traps and power-supply filter are made up of the series inductance shunt capacitor; 107 user's power supplys load; 108 1 kinds of custom power information equipments comprise module 104,105,106,107 and 131; 109 another kind of custom power information equipments comprise module 19,106,107 and 131, but frequency, address number difference; 131 user's multichannel multimedia wide and narrow strip digital information terminal and transceivers, because of the present invention is a multichannel multimedia power circuit simultaneous interpretation system, multiplexing needs two-stage modulation at least, to realize frequency division multiplexing, the circuit diagram of module 131 is seen the secondary many windings high frequency of the elementary winding of Fig. 4 A:110 transformer, elementary winding and 104 impedance matchings; 111 high-frequency wideband apparatus of digital television receiving are as 7.6Mb/s digital television receiver or 18.8Mb/s digital high-definition television machine; 112 receive high-frequency digital TV signal band pass filter, are made of inductance, capacitor and resistors match attenuator; 113 high-frequency wideband operational amplifiers for example adopt the MA733 amplifier; The anti-device of transferring of the monolateral band of 114 high intermediate frequencies, the pass filter and the resistors match attenuator that constitute by the MC1596 chip, by inductance, capacitor are formed; The 115 digital television information multi-system width of cloth---mutually compound demodulators; The 116th, receiving terminal for digital television; 117 user 2Mb/s digital videophone equipment can be fixed or cell phone; 118 high frequency differential networks are balancing networks that differential transformer and resistance, capacitor are formed, and are identical with 40 formations; 119 broadband reception amplifiers for example adopt the MA733 amplifier; 120 high freguency bandpass filters, i.e. band pass filter of forming by inductance, capacitor and the matched attenuator of forming by resistance; The anti-device of transferring of the monolateral band of 121 high intermediate frequencies comprises the single sideband filter of MC1596 multiplier chip and inductance, capacitor composition and the matched attenuator that resistance is formed; 122 2-four line converting networks; 123 amplify and low pass filter, for example are made up of LF444 amplifier and resistance, inductance, capacitor; 124 medium-high frequency single side-band modulators, the matched attenuator that single sideband filter of being made up of MC1596 multiplier chip and inductance, capacitor and resistance are formed constitutes; 125 high-frequency wideband power amplifiers for example are made of MPC16636 amplifier or triode power amplifier; 126 computer telephone integration communication equipments, comprising the circuit that same No. in module No. and the module 117 is arranged, only its frequency location and passband are wide different; 127 are≤the 33.6Kb/s demodulator, and two kinds of interfaces are arranged: a kind of is the RS-232-C interface that links to each other with computer, and another kind is the real-time sync cap that is connected with the digital telephone terminal, and this demodulator flank speed is 33.6Kb/s; 128 computers, personal computer or notebook computer; 129 telephone sets, it has dual-tone multifrequency T signaling-information; 130 digital telephone terminals and functional mapping unit; The 132nd, the 2Mb/s information multi-system width of cloth---mutually compound demodulator; The 133rd, 2Mb/s digital videophone terminating machine.
Referring to Fig. 5.Fig. 5 is the multi-system width of cloth---mutually compound demodulator circuit diagram, i.e. NQAM circuit diagram; Wherein, N=256=2 8Be 256QAM=2 8QAM; The 147th, the multi-system width of cloth---phase complex modulated device circuit; 148 strings-and translation circuit, constitute by module 151,152 and 153; 149 matched impedance low-pass filter circuits are made up of module low pass filter 166 and the matched impedance attenuator 155 that is connected in its two ends; 150 sequence of binary digits input ports, Digital Television for example, its speed is 7.6～8Mb/s; 151 synchronization timing generators, its frequency are 7.6～8MHZ, and it can extract with phase lock circuitry from information flow or local high steady accurate crystal oscillator produces; 152 two-way strobe signal generators are made up of 74F74 type double D trigger; 153 pairs and door are for example used the 74F08 chip; The function of foregoing circuit is input, and for example 8 Mb/s sequence of binary digits are divided into two 4Mb/s Serial No. outputs, and one sends into 154, and another sends into 160; 154 binary system multi-system transducers convert binary-level to multi-system level waveform, for example can be realized by DAC0832 digital-to-analogue conversion integrated circuit; 155 matched impedance attenuators are made up of three exact value resistance; 156 low pass filters that roll-off, the low pass filter that the rolloff-factor of being made up of inductance and capacitor is very little, its pass band width are 0.5MHZ in this example; 158 linear modulators, for example, can be that main circuit is finished with the MC1596 integrated circuit, the circuit of the linear modulator of module 158 sees Fig. 5 A for details, wherein 202 is the linear multiplier integrated circuit, and for example model is the linear multiplier of MC1595 or MC1496, and its CF signal is sine wave signal or cosine wave signal, its modulation signal for example can be the output that the matched impedance attenuator 155 of input is provided by the low pass filter 156 that roll-offs; 159 sinusoidal wave double-sideband modulation circuit are made up of the module 154,155,156,155,158 that connects successively; 160 cosine wave double-sideband modulation circuit, its circuit constitutes with 159, but the CF signal of input is a cosine wave, this cosine wave signal is 169 sine wave signal to be spent through module 170 phase shifts 90 produce; 164 linear adder devices, quadrature multi-system modulation signal addition in 164 linear adder devices of 159 and 160 outputs forms the multi-system width of cloth---phase composite modulated wave signal, i.e. 256QAM signal, after this signal is exported to 149 matched impedance low-pass filter circuit, from 168 outputs; 166 low pass filters are made up of inductance, capacitor, and under 8Mb/s input rate situation, this routine 256QAM output base band is wide to be 1MHZ; The 168 multi-system width of cloth---phase complex modulated device delivery outlet; 169 high steady accuracy crystal oscillators provide CF signal; 170 is 90-degree phase shifter, and its circuit formation sees Fig. 5 B:171 linear modulator for details, and its circuit constitutes with module 158, can adopt the MC1496 chip; 172 integrators are finished by resistance, capacitor; 173 phase discriminators; 174 low pass filters are made up of inductance, capacitor; 175 adders are for example formed with amplifier and resistance; 176 voltage-controlled oscillators.
The 177 multi-system width of cloth---mutually compound demodulator comprises that the module 178,179,180, the two-way that link to each other successively constitute the counter modulation circuit 184,195,196 and 197 of identical counter modulation circuit 191 and CF signal 90 degree phase shifts; The 178 multi-system width of cloth---the input of mutually compound demodulator, it connects the counter output of transferring device of the monolateral band of high intermediate frequency, and the information spectral bandwidth is 1MHZ in this example; 179 revenue and expenditure road band pass filter amplifiers amplify follower by inductance, capacitor and AD811 molded breadth band and form; 180 splitters are realized by transformer and transistor; 181 CF signal restore circuits have two kinds of methods: the one, and the low level CF signal of transmission of making a start, receiving end narrow bandpass circuit extraction; The 2nd, set up carrier recovery loop from roll-off low pass filter and the matched impedance attenuator of two-way 185, this example is the latter; 170 is 90 degree phase-shift circuits, with aforementioned; The 183 linear anti-devices of transferring, its CF signal is sinusoidal wave, is finished by the MC1596 circuit; The counter modulation circuit of 184 CF signal, 90 degree phase shifts, its circuit constitutes with 191, and its CF signal is provided after 170 90-degree phase shifter phase shift by 181 CF signal restore circuit; The 185 low pass filter matched impedance attenuators that roll-off are made up of inductance, resistance and capacitor; 187 receiving end bit synchronization timing generators have two kinds of methods: the one, and after the demodulation of NQAM system, extract the baseband signal and add phase lock circuitry; The 2nd, adopt digital, black soy sauce sample bit synchronization error signal detection method, the present invention adopts the latter, its input is provided by 191 roll-off low pass filter and matched impedance attenuator 185, when setting up the bit synchronization master regularly, and 8MHZ for example, its output delivers to 192 on the one hand, sends again to 198 simultaneously; 188 two-dividers; 189 8 frequency dividers, its output is as the clock signal of the multi-system binary translator of two-way module 190; 190 is the multi-system binary translator, is about to the multi-system waveform and becomes binary-level, is finished by the ADC integrated circuit, for example adopts ADC0809 or AD572 integrated circuit; 191 counter modulation circuit; 192 two-way strobe pulse generators are finished by 74F74, and it delivers to 193 of two-way to the road pulse respectively; 193 is the sequence of binary digits generator, and as the 4Mb/s binary message, this two-way 4Mb/s information is closed the road in 195 circuit; 195 OR circuit are for example used the 74F32 chip; 196 paired inverters are inverters of eliminating the paired use of burr, for example use 74,F14 six anti-phase schmitt triggers; The 197 multi-system width of cloth---mutually compound demodulator output, this example is the binary message sequence of output 7.8～8Mb/s; 198 synchronous timing signal delivery outlets, its frequency also are 7.6～8MHZ.
Referring to Fig. 6.Fig. 6 is a single-side band modulation hf transceiver circuit diagram; 200 linear modulators, i.e. intermediate frequency double-sideband modulation circuit, it constitutes with Fig. 5 A; 201 modulation signal input ports, as by the multi-system width of cloth---the output of phase complex modulated device, as the modulation signal IN of Fig. 5 A; 202 linear multiplier integrated circuits for example adopt MC1596 or MC1496 linear multiplier integrated circuit, and its task is to finish amplitude modulation double side band; 203 monolateral band band pass filters are dressed up by design by the inductance (L) and the capacitor (C) of exact value, and its effect is and 200,204,207 constitute the intermediate frequency single-side band modulation, and its output information spectral bandwidth still is 1MHE, but spectrum position has become the frequency position of design; 204 matched impedance attenuators are made up of three precision resistances; 205 Wideband RF Amplifier, each one of transmitting-receiving, by AD811 type amplifier and resistance R, capacitor C and positive and negative DC power supply are formed, 205 input also will be imported 207 resting frequence signals (through the R decay) and use as synchronous mode if demodulator CF signal and pilot signal that the opposite end receives except that inserting from the 204 intermediate frequency single sideband singals; 206 high-frequency single side band modulators, its circuit is with the monolateral band linear modulator of intermediate frequency, realize by Fig. 5 A, but to change R26 and R27 into inductance coil, its CF signal frequency values difference, this signal provides by 208, and 206 output spectrum positions are by design decision, by their line frequency configuration position of multichannel wide and narrow strip information power circuit transmission control unified distribution of the present invention; 207 CF signal generators, it is the high steady accuracy crystal oscillator that is provided by specialized factory; 208 high-frequency carrier signal generators are provided by same specialized factory with 207; The monolateral band modulated information of 209 two-way wideband high-frequencies mixer is finished by high frequency transformer or video amplifier adder; The monolateral band modulated signal of 210 another road medium-high frequencies input port, the same 201-208 of its circuit; 211 pre-amplifiers and power amplifier, see Fig. 6 A:211 for details and comprise 212 to 218 each several parts: 212 differential amplifiers, form by three high frequency small-power NPN triode T1-T3; 213 feedback circuits are made up of two resistance and a capacitor; 214 biasing circuits are made up of a resistance and diode D1, D2; 215 cascode amplifying stages are made up of a triode T4 and a resistance, a capacitor; 216 multiple circuits are made up of two resistance and a triode T5; 217 current source loadses are made up of a triode T6 and a resistance, a capacitor; 218 accurate complementary power amplifier levels comprise a 3DG high frequency small-power NPN triode T7, a 3CG high frequency small-power PNP triode T8, and two 3DA high-frequency high-power NPN triode T9, T10 (for example using 3DA98,3DA809 or 3DA83IB) form; 219 circuit band pass filters are made up of exact value inductance L and capacitor C, see Fig. 6 A for details; 220 high frequency differential networks are made up of difference transformer and resistance, capacitor balance net, and it is finished transmitting-receiving and divides to transmission, at the one-way transmission wide-band-message, and Digital Television etc. for example, 220 cell arrangements are unwanted; 221 overcurrent fuse tubes play security personnel's effect; 222 overvoltage discharge tubes; The good ground wire of 223 contacts also is a protective device; The monolateral band demodulator of 224 two-stages transceiver I/O port connects high-frequency signal and presents standard coaxial cable; 225 revenue and expenditure route road band pass filter and matched impedance attenuators, it to make a start 204 similar with 203; 226 two-way broadband digital splitters by an elementary winding, are secondaryly finished for doublewound transformer or amplifier and shunt resistance electric capacity etc., and both all will have band pass filter shunt compensation inductance, capacitor circuit; 227 another receiving branchs, the same 228-241 of its circuit; 228 band pass filters and matched impedance attenuator, branch road 203,204 is similar to sending out, frequency band position difference; 229 local high-frequency generators, high frequency is counter to be called, and to send out branch road 208 identical with the other side for it; The anti-device of transferring of 230 high frequencies, its circuit with make a start 206 identically, the double-side band frequency spectrum of its output contains the intercarrier signal component; 231 monolateral band band pass filter and matched impedance attenuators, its circuit is identical with 203 and 204; 232 intermediate frequency carrier (pilot tone) signal extracting circuit comprises the narrow-band pass filter that inductance, capacitor are formed, the matched impedance attenuator; 233 carrier frequency (pilot tone) amplifier and follower; 234 exchange pilot signal becomes the DC level circuit, is finished by rectification, filtering, direct current amplifier spare; 235 automatic gain control amplifiers, when promptly the circuit signal level of coming was high, its amplified little, otherwise amplified greatly, and it is put Ying Guan etc. by the negative resistance charactertistic field and finishes; 236 level indicators; 237 narrow band filters and adapter amplifier amplify follower for further narrow band filter of purifying of CF signal and coupling that the counter modulation of synchronous mode intermediate frequency is used, are made up of inductance, electric capacity, resistance and LF412 amplifier; The anti-device of transferring of 238 final synchronous mode intermediate frequencies, its composition is identical with 200; 239 low pass filters are made up of resistance, capacitor and amplifier; 240 amplifiers and amplifier follower for example adopt the HA2620/2625 amplifier; 241 wide-band-message terminating machine receiving end interface, for example digital television receiver interfaces.
Referring to Fig. 7.The present invention also provides a kind of computer telephone integration communication equipment of described Access Network, and Fig. 7 is its physical circuit; 245 phones and Subscriber Line Interface Circuit, it comprises 246 to 250 devices such as grade; 246 have the telephone set of T signaling-information, i.e. module 129 among Fig. 4 A; 247 Subscriber Line Interface Circuit, the subscriber line interface integrated circuit as the SJ0612 cake core is characterized in that when the user carries machine pin 20 manifests high level, makes 250 conductings, Y 1Be low level; 248 ring relays; 249 ringing-current generator and timing circuits, for example using " 555 " integrated circuit is timer, and ringing-current produces circuit and is made of R-C and D, and D is a diode, and R is a resistance, C is a capacitor, (V) be negative supply, (+V) be positive supply; The 250NPN triode; 251 speech digitizing encoders for example adopt MC3418, and it is suitable for user's single channel coding and decoding device, its regularly by 127≤the 33.6Kb/s demodulator provides; 252 revenue and expenditure road decoders, chip are MC3418 also, with as coding circuit different be that its pin one 5 connects low level; 253 low-pass filter amplifiers, 254 operational amplifiers are for example used 1458 amplifiers; Form by operational amplifier and resistance, capacitor; 256 is the RS-232-C interface; 257 real-time sync caps; 258 relays; 259 personal computers, i.e. module 128 among Fig. 4 A; 260 relays; The 127th, aforesaid≤the 33.6Kb/s demodulator, speed is smaller or equal to 33.6Kb/s, and it has two kinds of interfaces, the first 256, and it is the RS-232-C interface, receives personal computer 259 through 258 relay tips, as notebook computer; It two is 257, and it is the real-time sync cap of sound codec of answering, through 260 relay tips to 251 and 252;
261 single sideband transceivers are the arrowband 4KHZ channel single sideband transceivers that transmit on 220 volts of electric wires, and it comprises 118 to 125 element circuits such as grade among Fig. 4 A; 262 standard analog telephones a, b line interface, during the digital telephone terminal fault was repaired, it can insert telephone set and online computer; 263 is the output of 4KHZ transceiver control signal, i.e. Y4; 264 narrow band information interfaces; 265T signaling-information receiving circuit, the T signaling-information is sent by stored-program control exchange; 266 double voice multi-frequency receiver chips, for example use MC8870, the signaling-information that receives is input to pin 2,3 through capacitor (C) and resistance (R), and this chip requires to insert between the pin 7 and 8 crystal of 3.58MHZ, and pin 11,12,13 and 14 is exported the binary digit D of corresponding telephone number respectively 0, D 1, D 2, and D 3, D i=1 or 0; 267 4-digit number comparators for example adopt the CC4585 chip, and its pin 11,9,1 and 14 meets the D of input respectively 0, D 1, D 2, and D 3, pin 10,7,2 and 15 connects translates number resistance, and connecting resistance (R) is " 1 " (high level) to ground, is " 0 " (low level) with being shorted to, and pin 3 is level output, and high level has decoding output, and low level is that no signal or signal disappear; 268 latchs; 269 relays; 275 3 inputs and door are done AND operation to three item sign indicating numbers, for example adopt 7411 chips, when it is output as " 1 ", then are latched in 268, and it is four R/s latchs of CC4043B type, and in the case, its pin 2 is output as high level, i.e. Y 2Be high level, insert the Y of 269 relays 2, disconnect this channel digit call transceiver path this moment; 270 Subscriber Number decoders are unique, and it is worked together with 268,275, makes 271 NAND gate, and for example 7400 chips are exported Y 3Be low level, Y 3Make 248 relay work on the one hand,, make 277 relay work on the other hand, connect this user's call transceiver path to user's ring.
After the user hears ring, mention 246 microphones, make 250 Y 1Become low level, make 276 NAND gate, for example 7400 type NAND gate manifest high level output, make 268 zero clearings, and 271 become high level, stop ring, can converse, if the user should promptly not exhale for a long time not on the phone next door, then stored-program control exchange is stopped paying out a period pilot tone, makes Y 4Be low level, make 268 zero clearings by 276, thereby stop to send ringing-current to substation.
When the user carries machine, Y 1Low level, make 272 relay work, connect the positive-negative power of 261 4KHZ transceiver, this power supply is disconnected; 273 telephone-computer transition of communications circuit comprise aforesaid 266,267 and 268 3 kind of integrated circuit, when the user wants phone and computer conversion work, by two T signaling-informations, during by first item, make 268 zero clearings, for example *For phone is logical, i.e. X 1Be low level, relay 260 is connected; By second item, as making X by # 2Present low level, make computer logical; 274 not gates are for example used 7404 chips; 276 NAND gate.
Characteristics of the present invention not only provide a kind of power circuit simultaneous interpretation wide and narrow strip digital information Access Network for outskirts of a town, rural user, what give different small towns closes between the village described at village level power circuit simultaneous interpretation wide and narrow strip information network by the interconnected equipment of wireless relaying machine, referring to Fig. 8, Fig. 8 is close between the village Wireless Networking pie graph of described Access Network in different small towns; 280 first small towns power circuit simultaneous interpretation wide and narrow strip numeral access network equipment is the right half part of Fig. 1; 281 wide and narrow strip information InterWorking Equipments, it is located at first small towns village, comprise original at village level power circuit simultaneous interpretation wide and narrow strip information network and the module 282,283,294 that links to each other successively with its filter joint 3 and be connected with 294 295 and 296; 1,2,3,5,11,14,15 and 131 etc. content is with aforementioned among Fig. 8; 282 coaxial cables are made high-frequency feed line and are used; 283 fens mixers, for also-extension unit, finish by many windings of high frequency differential transformer etc.; 294 high frequency differential networks through high-frequency single side band modulated amplifier 295 modules, are sent to the at village level multichannel wide and narrow strip information station in second small towns; 295 high-frequency single side band modulated amplifiers; 296 high-frequency single side band modulated amplifiers, its circuit is with 295; 298 mixers, the mixer of two kinds of information from 11 and 295 is made up of transformer and high frequency amplifier or triode amplifier etc., and its output receives 300; 299 splitters, with wide and narrow strip information along separate routes; 300 IF interfaces, 301 receive IF interface, are the receipts IF interface of relay equipment, and described IF interface frequency is in 100MHZ, and wherein comprehensive multichannel high-frequency information receives 11, and its broadband 18.8Mb/s or 7.6Mb/s numeral high-frequency information receive 296; 302 small microwave relay transceivers, the transmitting-receiving frequency range is selected frequency range at 1GHZ (gigahertz) for use between the 30GHZ; 303 is small size antennas of 302; 300,301,302 and 303 be loaded in the little case (box), be installed in power line masthead or roof, transformer room, and the rain and snow measure is arranged; 304 microwave relay units, it is the microwave relay unit that is used to network of being located at first small towns village, and contains module 298-303.
305 microwave relay units among Fig. 8 are located at the microwave relay unit of networking in certain village in second small towns, and it constitutes with 304; 306 wide and narrow strip information InterWorking Equipments, it is located at second small towns village, and it constitutes with 281; 307 second small towns power circuit simultaneous interpretation wide and narrow strip numeral access network equipment, its formation is identical with module 280, and it is connected to the three-phase high-voltage power line road in second small towns; Microwave electric wave between two villages of 308 expressions, the microwave relay unit by each village sends respectively, and its frequency is all in 1-30GHZ.
In brief, this small microwave relay equipment, it is a microwave broadband channel relay equipment, be located in two villages on the power line bar or on the roof, transformer room, smaller or equal to the intermediate frequency of 1～30GHZ microwave radio relay equipment of 100MHZ and the wide and narrow strip numeral high-frequency information four-wire interface of power circuit transmission, interconnected with the stored-program control exchange of being located at village level transmission 2Mb/s digital videophone and 33.6KMb/s computer telephone integration information and 18.8Mb/s and the high frequency domain channel of 7.6Mb/s Digital Television.
Referring to Fig. 9.Fig. 9 is a small towns multichannel wide and narrow strip information station pie graph, be the module 9 among above-mentioned Fig. 1 formation and with the annexation figure of other modules, the related circuit of this Fig. 9 is existing or standardized circuit, and related module 3,6,8,14 and 16 composition are with aforesaid identical; 12 intend at village level multichannel wide and narrow strip information station, its formation is identical with above-mentioned at village level multichannel wide and narrow strip information station 11, and the low-voltage power line 14 by this small towns is connected with its electric power and information user's equipment 16, the low-voltage power line 14 in this small towns links to each other with the small towns transformer station 4 or the transformer in this small towns by high frequency choke apparatus 15, intend at village level multichannel wide and narrow strip information station several can be arranged, be distributed in around this small towns multichannel wide and narrow strip information station, therefore, need a tandem Switching Module; 310 tandem Switching Module NQAM converter units, one of its effect links to each other the several at village level multichannel wide and narrow strip of plan information station tandems of being located at the small towns afterwards with module 6, two of its effect is to do 2Mb/s digital videophone and 33.6Kb/s computer telephone integration NQAM and binary digit conversion; 311 is 64Kb/s2048Kb/s standardization converter unit, ≤ 33.6Kb/s two-way information or 56Kb/s one tunnel information are become the PCM time slot (8bit is a time slot) of one road 64Kb/s, 2Mb/s information is become 2048Kb/s PCM (the Pulse Code Modulation) basic group of standard, enter Long-distance Switching Equipments then; 312 Long-distance Switching Equipments mostly are digital time division circuits exchange at present, i.e. PCM time gas exchange, and newer technology is an atm switching apparatus; 313 atm switching apparatus, empty frame table show that it is a kind of connection-oriented fast packet switching equipment, and the information of phone, computer, TV etc. is all as data, and packing exchanges transmission; 314 atm interfaces based on SDH, it is the module 10 among aforesaid Fig. 1, the optical cable of external main line or microwave line, SDH (synchronous digital hierarchy Synchronous Digital Hiearchy) is that a cover can carry out the synchronizing information transmission, multiplexing, divide the structural class of inserting with cross-coupled standardized digital signal, be referred to as synchronous transfer mode STM-N, during N=1, the transmission rate of STM-1 is 155520Kb/s, during N=2, STM-2 is 155520*2=311040Kb/s, the rest may be inferred, the frame structure of the STM-N that optical cable or microwave backbones circuit are transmitted belongs to block frame structure, and based on byte, this data message structure can exchange the digitized signal of the various information sources of transmission, STM full name herein is STM (Synchronous Transfer Module), is connected with 6 by module 8 and clock signal is provided or send timing signal mutually by 315 based on the atm interface 314 of SDH; 315 high steady accuracy timing system generators, it can be used for the clock of each unit of our station by extracting in the numerical sequence signal that transmits on steady accuracy crystal oscillator of height or the main line.

Claims (6)

1, a kind of rural electric circuit synchronous-transmission wide-narrow band digital information switch-in access net system, comprise three-phase high-voltage power line road (1), with the three-way high-frenquency current blocking device that is connected in three-phase high-voltage power line road (1) (2), small towns transformer station (4), at village level transformer (5), the filter joint (3) that is connected with three-phase high-voltage power line road (1) two line; It is characterized in that: described access net system also comprises: the small towns power circuit simultaneous interpretation wide and narrow strip numeral access network equipment and the at village level power circuit simultaneous interpretation wide and narrow strip information network that link to each other with three-phase high-voltage power line road (1), described small towns power circuit simultaneous interpretation wide and narrow strip numeral access network equipment comprises the high-frenquency current blocking device (2) that links to each other according to counterclockwise order, filter joint (3), the small towns is at village level power circuit transmission multichannel wide and narrow strip information equipment (6), multichannel multimedia broad band information generator-condensing encoder (8), ATM coffret (10), small towns multichannel wide and narrow strip information station (9), intend at village level power circuit simultaneous interpretation wide and narrow strip information network (13) and small towns transformer station (4), small towns multichannel wide and narrow strip information station (9) also is connected with multichannel multimedia broad band information generator-condensing encoder (8) with small towns at village level power circuit transmission multichannel wide and narrow strip information equipment (6); Described at village level power circuit simultaneous interpretation wide and narrow strip information network comprises is docile and obedient high-frenquency current blocking device (2), filter joint (3), at village level multichannel wide and narrow strip information station (11), low-voltage power line (14), high frequency choke apparatus (15) and at village level transformer (5) and the electric power that is connected with low-voltage power line (14) and the information user's equipment (16) that the hour hands order links to each other; Intend at village level power circuit simultaneous interpretation wide and narrow strip information network (13) and comprise high-frenquency current blocking device (2), filter joint (3), plan at village level multichannel wide and narrow strip information station (12), the low-voltage power line (14) and high frequency choke apparatus (15) and the electric power that is connected with low-voltage power line (14) and information user's equipment (16) of being docile and obedient the hour hands order and linking to each other, its high frequency choke apparatus (15) is connected with small towns transformer station (4), intends at village level multichannel wide and narrow strip information station (12) and constitutes identical with the circuit of at village level multichannel wide and narrow strip information station (11); ATM coffret (10) is the interface between described access net system and the main line;
Wherein, described small towns at village level power circuit transmission multichannel wide and narrow strip information equipment (6) comprising: with coaxial cable high-frequency line interface (55) and multichannel multimedia wide and narrow strip information co-shunt device and the transceiver equipment (54) that filter joint (3) is connected successively, the multichannel 18.8Mb/s digital compression high definition TV transmitting device (25) and the 18.8M/s information input port (26) thereof that link to each other with multichannel multimedia wide and narrow strip information co-shunt device and transceiver equipment (54), multichannel 7.6Mb/s digital television transfer equipment (30) and 7.6Mb/s information input port (31) thereof, multichannel 2Mb/s digital videophone transmitting-receiving extension set (35) and 2Mb/s information transmitting terminal input port (36) and multichannel 2Mb/s digital videophone delivery outlet (44), multichannel 33.6Kb/s computer telephone integration communication equipment (45) and multichannel 4KHZ telephone line two line interfaces (46) thereof; The circuit of multichannel 18.8Mb/s digital compression high definition TV transmitting device (25) and multichannel 7.6Mb/s digital television transfer equipment (30) constitutes identical, and all with input information through the multi-system width of cloth---phase complex modulated, medium-high frequency two-stage single-side band modulation; The input information of multichannel 2Mb/s digital videophone transmitting-receiving extension set (35) and multichannel 33.6Kb/s computer telephone integration communication equipment (45) is all through the multi-system width of cloth---complex modulated, medium-high frequency two-stage single-side band modulation mutually, and its output information is all through the monolateral band counter modulation of high intermediate frequency two-stage, the multi-system width of cloth---mutually compound demodulation;
---mutually compound demodulator is by the multi-system width of cloth---the phase complex modulated device and the multi-system width of cloth---, and mutually compound demodulator constitutes the described multi-system width of cloth; The described multi-system width of cloth---phase complex modulated device is by the string that links to each other successively with binary message input port (150)-and translation circuit (148), modulation circuit that the two-way circuit structure is identical (159) and CF signal differ from the modulation circuit (160) of 90 degree phase shifts, linear adder device (164), matched impedance low-pass filter circuit (149) and NQAM modulator delivery outlet (168) and high steady accuracy crystal oscillator (169) and 90-degree phase shifter (170) composition that CF signal is provided, described modulation circuit is by the binary system multi-system transducer (154) that links to each other successively, matched impedance attenuator (155), low pass filter (156) roll-offs, matched impedance attenuator (155) and linear modulator (158) constitute, described matched impedance low-pass filter circuit (149) is made up of low pass filter (166) and the matched impedance attenuator (155) that is connected in its two ends, the CF signal of the linear modulator (158) of one tunnel modulation circuit (159) is sinusoidal wave, the CF signal of the linear modulator (158) of the modulation circuit on another road (160) is a cosine wave, and NQAM modulator delivery outlet (168) is connected with the input of medium-high frequency single side-band modulator; The described multi-system width of cloth---mutually compound demodulator is by the counter output (178) of transferring device of the monolateral band of medium-high frequency that links to each other successively, revenue and expenditure road band pass filter amplifier (179), splitter (180), counter modulation circuit (191) that the two-way circuit structure is identical and CF signal differ from the counter modulation circuit (184) of 90 degree phase shifts, OR circuit (195), paired inverter (196) and NQAM demodulator delivery outlet (197) and the CF signal restore circuit (181) that CF signal is provided, 90-degree phase shifter (170) and bit synchronization are regularly, two-way selects pulse and frequency dividing circuit to constitute, described counter modulation circuit (191) is by the linear anti-device (183) of transferring that links to each other successively, low pass filter-matched impedance attenuator (185) roll-offs, multi-system binary translator (190), sequence of binary digits regenerator (193) is formed, the CF signal of the linear anti-accent device (183) of one tunnel counter modulation circuit (191) is sinusoidal wave, and the CF signal on another road is a cosine wave; Synchronization timing circuit and provide the input signal of the CF signal restore circuit (181) of CF signal to provide by the low pass filter that the roll-offs-matched impedance attenuator (185) of two-way.
2, rural electric circuit synchronous-transmission wide-narrow band digital information switch-in access net system according to claim 1, it is characterized in that: described at village level multichannel wide and narrow strip information station (11) comprising: the multichannel wide and narrow strip information transmit-receive that is connected with filter joint (3) deciliter road device (56), receive amplification conversion equipment (57) with the multichannel wide and narrow strip information transmit-receive deciliter wide-band-message that road device (56) links to each other, 2Mb/s digital videophone high-frequency information transceiver (63), 33.6Kb/s computer telephone integration communication hf transceiver (72) reaches or the mixer (298) and the splitter (299) of microwave relay unit (304), the stored-program control exchange (73) that is connected with 2Mb/s digital videophone high-frequency information transceiver (63) and 33.6Kb/s computer telephone integration communication hf transceiver (72), the switch that links to each other with stored-program control exchange (73) is to user's 220 hint road transmission system devices (85), and switch all is connected with low-voltage power line (14) four lines by its high pressure resistant capacitor (19) with wide-band-message reception amplification dispensing device (57) to user's 220 hint road transmission system devices (85); The communicate by letter circuit of hf transceiver (72) of computer telephone integration constitutes identical 2Mb/s digital videophone high-frequency information transceiver (63) with 33.6Kb/s; Described stored-program control exchange (73) comprises toll trunk device, user's relaying and interface circuit, signaling-information processing unit and the CPU that links to each other with the space switching matrix; Described switch comprises that to user's 220 hint road transmission system devices (85) circuit of two groups of parallel connections constitutes identical telephone circuit (98), the input signal of telephone circuit (98) is through medium-high frequency two-stage single-side band modulation, and its output signal is through the monolateral band counter modulation of high intermediate frequency two-stage.
3, rural electric circuit synchronous-transmission wide-narrow band digital information switch-in access net system according to claim 1 and 2, it is characterized in that: described electric power and information user's equipment (16) comprising: the lane power line (100) that joins with low-voltage power line (14), a kind of custom power information equipment (108) that is connected with lane power line (100), and or the standardization that is connected with lane power line (100) electric wire (101) of registering one's residence by insulator (102) and insulation porcelain rod (103) formation, with the standardization another kind of custom power information equipment (109) that electric wire (101) is connected of registering one's residence, described a kind of custom power information equipment (108) comprises user's multichannel multimedia wide and narrow strip digital information terminal and the transceiver (131) that clockwise preface links to each other, the cable (104) that the transmitting high-frequency signal decay is little, impedance matching high frequency transformer (105), trap and power-supply filter (106) and user's power supply load (107); Described another kind of custom power information equipment (109) comprises user's multichannel multimedia wide and narrow strip digital information terminal and transceiver (131), high pressure resistant capacitor (19), trap and power-supply filter (106) and the user's power supply load (107) that clockwise preface links to each other; Described user's multichannel multimedia wide and narrow strip digital information terminal and transceiver (131) comprise an elementary winding secondary many windings high frequency transformer (110) and coupled high-frequency wideband apparatus of digital television receiving (111), user 2Mb/s digital videophone equipment (117) and computer telephone integration communication equipment (126); The input signal of high-frequency wideband apparatus of digital television receiving (111) is delivered to receiving terminal for digital television through filtering, amplification, the monolateral band counter modulation of high intermediate frequency and the multi-system width of cloth---mutually compound demodulator; The input signal of user 2Mb/s digital videophone equipment (117) is through amplification, filtering, the anti-device and the multi-system width of cloth---the mutually compound demodulator of transferring of the monolateral band of high intermediate frequency, send into 2Mb/s digital videophone terminating machine, the output signal of 2Mb/s digital videophone terminating machine is through the multi-system width of cloth---phase complex modulated device, filtering, medium-high frequency single side-band modulator and amplification, send into an elementary winding secondary many windings high frequency transformer (110); The input signal of computer telephone integration communication equipment (126) through amplification, filtering, the monolateral band of high intermediate frequency counter transfer device and≤the 33.6Kb/s demodulator, send into computer or through the digital telephone terminal, controlled by the functional mapping unit, an elementary winding secondary many windings high frequency transformer (110) is sent in output signal warp≤33.6Kb/s demodulator, filtering, medium-high frequency single side-band modulator and the amplification of computer or telephone set.
4, rural electric circuit synchronous-transmission wide-narrow band digital information switch-in access net system according to claim 3 is characterized in that: described high-frequency wideband apparatus of digital television receiving (111) is 7.6Mb/s digital television receiver or 18.8Mb/s digital high-definition television machine.
5, rural electric circuit synchronous-transmission wide-narrow band digital information switch-in access net system according to claim 4, it is characterized in that: described small towns wide and narrow strip information station (9) comprising: provided the 64Kb/s2048Kb/s standardization converter unit (311) that links to each other successively of clock signal to transmit the tandem Switching Module NQAM converter unit (310) that multichannel wide and narrow strip information equipment (6) links to each other with Long-distance Switching Equipments (312) and with 64Kb/s2048Kb/s standardization converter unit (311) and small towns at village level power circuit by the steady accuracy timing system of height generator (315), be connected with the plan at village level multichannel wide and narrow strip information station (12) identical with at village level multichannel wide and narrow strip information station (11) formation with tandem Switching Module NQAM converter unit (310); Described Long-distance Switching Equipments (312) is digital time division circuits Long-distance Switching Equipments or atm switching apparatus (313), and is connected with the optical cable or the microwave line of main line through the atm interface (314) based on SDH; Atm interface (314) based on SDH is also provided clock signal or is sent timing signal mutually by the steady accuracy timing system of height generator (315).
6, a kind of right that is used for wants two small towns of 1 described rural electric circuit synchronous-transmission wide-narrow band digital information switch-in access net system to close on interconnected systems between the village, it is characterized in that: described interconnected systems comprises that formation is identical, be located at the following equipment that this closes on two villages respectively: wide and narrow strip information InterWorking Equipment (281) and microwave relay unit (304), described microwave relay unit (304) is by the small microwave relay transceiver (302) of band microwave relay antenna (303), constitute with receipts IF interface (301) and the splitter (299) that output with small microwave relay transceiver (302) is connected successively with send out IF interface (300) and mixer (298) that the input of small microwave relay transceiver (302) is connected successively; Described wide and narrow strip information InterWorking Equipment (281) is reached the coaxial cable (282) that links to each other successively with its filter joint (3) by at village level power circuit simultaneous interpretation wide and narrow strip information network, divide mixer (283), high frequency differential network (294) and parallel high-frequency single side band modulated amplifier (295) that is used to export and the high-frequency single side band modulated amplifier (296) that is used to import, divide another road of mixer (283) to link to each other with the at village level multichannel wide and narrow strip information station (11) of at village level power circuit simultaneous interpretation wide and narrow strip information network, the input of the mixer (298) of microwave relay unit (304) is provided by the output of at village level multichannel wide and narrow strip information station (11) and the high-frequency single side band modulated amplifier (295) that is used to export; The high-frequency single side band modulated amplifier (296) that the output of the splitter (299) of microwave relay unit (304) is given at village level multichannel wide and narrow strip information station (11) and is used to import.
CNB01141779XA 2001-09-19 2001-09-19 Rural electric circuit synchronous-transmission wide-narrow band digital information switch-in network system Expired - Fee Related CN1177414C (en)

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CN1734959B (en) * 2004-08-03 2010-04-07 张会庭 Countryside information network for connecting main optical cable based on digital power line
CN1874174B (en) * 2006-06-21 2010-08-18 张会庭 Multimedia information network on power line in village level
CN1976253B (en) * 2006-12-12 2010-12-01 京信通信技术(广州)有限公司 Digital microwave relay communication system and realizing method thereof
CN101304266B (en) * 2008-07-08 2012-08-15 张会庭 Digital low-voltage electric power line length subsection-setting transmission integrated information system
WO2018036436A1 (en) 2016-08-26 2018-03-01 Zhejiang Dahua Technology Co., Ltd. Power over ethernet system, device, and method
CN106374306B (en) * 2016-08-26 2019-02-12 浙江大华技术股份有限公司 A kind of passive coaxial network converter and Power over Ethernet system
CN111751723B (en) * 2020-06-24 2022-12-13 威迪斯电机技术(芜湖)有限公司 Device for simulating output signal of rotary transformer and providing fault diagnosis
CN114050562B (en) * 2021-11-29 2023-11-10 中电科技集团重庆声光电有限公司 Power bidirectional transmission's signal and electricity synchronous transmission dual-line Ethernet system

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