CN202931353U - Electric power system access network communication apparatus - Google Patents
Electric power system access network communication apparatus Download PDFInfo
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- CN202931353U CN202931353U CN 201220596511 CN201220596511U CN202931353U CN 202931353 U CN202931353 U CN 202931353U CN 201220596511 CN201220596511 CN 201220596511 CN 201220596511 U CN201220596511 U CN 201220596511U CN 202931353 U CN202931353 U CN 202931353U
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Abstract
Provided is an electric power system access network communication apparatus, comprising an RS bus module, a CAN module, a LONWORKS electric power carrier wave module, a Profibus module, a wireless module, an electric Ethernet module and an optical Ethernet module which are all in connection with a master control module; the master control module controls the RS bus module, the CAN module, the LONWORKS electric power carrier wave module, the Profibus module, the wireless module, the electric Ethernet module and the optical Ethernet module through a built-in I2C, UART, SPI,CAN module controller and an ethernet controller. The electric power system access network communication apparatus has the advantages of low costs, high integrated level, comprehensive functions, wide application scope, etc. and is easy to realize.
Description
Technical field
The present invention relates to a kind of protecting electrical power system, control and automatic technology, particularly a kind of electric power system Access Network communicator.
Background technology
Transformer substation communication mainly experiences three developing stage, and the first stage be take RS485/422/232 as main simple communication pattern; Second stage be take the process bus that CAN, Lonworks etc. are representative; Phase III is that to adopt the higher Ethernet of speed be representative, fiber optic Ethernet technology especially, and above-mentioned various communication types are gone back ubiquity in the transformer station of different electric pressures.The communication mode in distribution field is more flexible and diversified, and common distribution communication has following three kinds of communication modes: the one, and fusion calculation machine technology and Digital Signal Processing adopt digital power line carrier communication; The 2nd, the electric power transmitting information wirelessly system of employing microwave communication technology; The process bus that the 3rd, CAN, Lonworks etc. are representative.In field of power transmission, also there are the multiple communication network types such as Wireless microwave communication, power line carrier communication and optical fiber communication, due to the variation of power system network and complicated, make and grasp and power application grid technology becomes one of key of intelligent grid construction, and the high performance communication device that is applicable to electric power system is the prerequisite of understanding and be familiar with the power system network technology in depth.Due to power communication application scenario differences such as transmission of electricity, distribution, the many reasons such as network communications technology disparate development, electric power system exists multiple different communication type simultaneously, especially at the access stratum reticulare of communication of power system.The on-position of communication of power system Access Network in whole electric power system, can self independent network consisting, with respect to backbone network or core net, the network type that it is used and network stipulations are more polynary and abundant, and will have diversified communication type within one very long period.Intelligent grid arises at the historic moment, the research of intelligent grid is the focus and emphasis of power industry with building, intelligent grid is to be based upon on the basis of integrated, high-speed bidirectional communication network, by the application of advanced sensing and measuring technique, advanced equipment and technology, advanced control method and advanced DSS technology, realize the target of reliable, the safety, economy of electrical network, efficient, environmental friendliness and use safety.In intelligent grid, flow of power, Business Stream, information flow are by the existing integral fusion to heavens of network implementation.The network communications technology is the basic and crucial of intelligent grid, for intelligent grid information exchange and interoperability etc. provide the platform support.But, because the current communicator of intelligent grid exists that integrated level is lower, communication system performance is single, function is disperseed and the problem such as imperfect, poor practicability, can't meet the requirement of each communication type of electric power system and mode diversification at all.
Summary of the invention
The shortcoming that the object of the invention is to overcome prior art, with not enough, provides a kind of electric power system Access Network communicator, and this device can be realized the seamless link of heterogeneous networks and different stipulations, and integrated level is high, powerful, applied widely.
Purpose of the present invention is achieved through the following technical solutions: a kind of electric power system Access Network communicator comprises the RS bus module, CAN module, LONWORKS power carrier module, Profibus module, wireless module, electric ethernet module and the optical Ethernet module that all are connected with main control module; Described main control module is by built-in I
2c, UART, SPI, CAN module controller and ethernet controller, realize the control to RS bus module, CAN module, LONWORKS power carrier module, Profibus module, wireless module, electric ethernet module and optical Ethernet module; Wherein CAN is control area net（CAN） (controller area network is called for short CAN), and LONWORKS is fieldbus, and Profibus is the abbreviation of Process FieldbusROFIBUS, I
2c is inter-integrated circuit, it is a kind of tandem communication bus-bar, use many client/servers, UART is Universal Asynchronous Receiver & dispensing device (Universal Asynchronous Receiver/Transmitter, be called for short UART), SPI is serial peripheral interface (Serial Peripheral Interface is called for short SPI).
As preferably, described RS bus module comprises RS232 unit, RS422 unit and RS485 unit; Described main control module communicates by UART and RS232 unit; Described main control module is controlled RS422 unit and RS485 unit by UART, to realize the multiplexing functions of RS422 unit and RS485 unit, described main control module is selected to communicate by letter with the RS485 unit by programming Control RS422 unit, and described RS422 unit and RS485 unit have the ability of isolation interference signal.
As preferably, described CAN module is that the expansion of ISO1050 chip forms, and described ISO1050 chip is controlled by the CAN module controller, and described ISO1050 chip has the signal isolating power.
As preferably, described LONWORKS power carrier module by PL3120, send amplifying circuit, coupling circuit and interface circuit and form, described LONWORKS power carrier module is passed through I
2interface and the main control module of C communicate.
As preferably, described Profibus module is connected with main control module by data/address bus, and described Profibus module comprises the differential level interface with isolating power.
As preferably, described wireless module communicates by interface and the main control module of SPI.
As preferably, described electric ethernet module is followed IEEE 802.3-2002 standard, described electric ethernet module comprises MAC controller unit and networked physics layer unit, described electric ethernet module has electric port RJ45, described port RJ45 is connected with network, described networked physics layer unit is connected with electric port RJ45, with realize IEEE1588 to the time mode.
As preferably, described optical Ethernet module has 100,000,000 fiber optical transceivers,
As preferably, described optical Ethernet module and electric ethernet module are integrated in photoelectricity Ethernet conversion chip.
As preferably, the name of described photoelectricity Ethernet conversion chip is called IP113M.
The present invention has following advantage and effect with respect to prior art:
(1) effectively overcome that communication system performance is single, function disperses, and especially can't fully reflect the shortcomings such as power communication system actual needs, practical;
(2) realize flexibly diversity and the complexity of communication of power system mode with modular mode, there is low cost, high integration, complete function, realize the advantages such as easy.
(3) applied widely, powerful; This electric power system Access Network communicator can be used for the test experiments of the common access network performance of electric power system and network stipulations, also can be used for the transition experiment of the interconnected of electric power system heterogeneous network and multiple network stipulations; Also can be used as power telecommunication network and close, realize seamless link and the information conversion of heterogeneous networks and different stipulations, the scope of application is very extensive; This electric power system Access Network communicator has adopted the implementation of " single core; multimode ", its controller LM3S9B96 chip possesses powerful communication capacity, very large storage volume, formed the powerful embedded with network function of controller LM3S9B96 chip, can take into account much information and process and communication function, function is very powerful.
The accompanying drawing explanation
Fig. 1 is the overall structure block diagram of this electric power system Access Network communicator.
Fig. 2 is the integrated circuit schematic diagram of main control module and electric ethernet module.
Fig. 3 is the integrated circuit schematic diagram of RS232, RS422 and RS485 unit and CAN module.
Fig. 4 is the circuit theory diagrams of amplifying return circuit in the power line carrier module of Lonworks.
Fig. 5 is the circuit theory diagrams of Profibus module.
Fig. 6 is the circuit theory diagrams of wireless module.
Fig. 7 is the circuit theory diagrams of optical Ethernet module.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited to this.
Embodiment
As shown in Figure 1, a kind of electric power system Access Network communicator, comprise the RS bus module, CAN module, LONWORKS power carrier module, Profibus module, wireless module, electric ethernet module and the optical Ethernet module that all are connected with main control module, described main control module is by built-in I
2c, UART, SPI, CAN module controller and ethernet controller, and carry out Function Extension by data/address bus, realization is to the RS bus module, the CAN module, LONWORKS power carrier module, the Profibus module, wireless module, the control of electricity ethernet module and optical Ethernet module, described main control module adopts low-cost, the LM3S9B96 chip of strong network function, this electric power system Access Network communicator is assembled the multiple network interface, take the LM3S9B96 chip as core controller, as shown in Figure 2, 5 volts of power supplys that by power supply chip PQ1LA333MSPQ, will enter into device by terminal are converted to the system power supply of 3.3 volts, by power supply chip FAN2558S 12X, provide 2.5 volts of power supplys to the LM3S9B96 chip simultaneously, and provide crystal oscillator that frequency is 16MHz to shake as the oikocryst of LM3S9B96 chip, the LM3S9B96 chip is connected with computer and carries out chip development by jtag interface, as shown in Figure 3, the functional module pin of the inside UART of LM3S9B96 chip is connected to the MAX3250 chip with isolation features, by the MAX3250 chip, realize meeting the output of RS232 level requirement and being connected to lead-out terminal, adopt the ISO35 chip to realize 422/485 bus functionality, the ISO35 chip is connected with the inside UART functional module pin of LM3S9B96 chip, thereby realize the multiplexing functions of RS422 unit and RS485 unit by programming Control IO pin, controlling the RS422 unit selects to communicate by letter with the RS485 unit, in the CAN module, this electric power system Access Network communicator adopts microchip ISO1050 to connect chip as outside, the CAN module controller that the LM3S9B96 chip internal is integrated, realize the terminal of CAN differential wave jockey by the ISO1050 chip.
Described RS bus module comprises RS232 unit, RS422 unit and RS485 unit; Described main control module communicates by UART and RS232 unit; Described main control module is controlled RS422 unit and RS485 unit by UART, to realize the multiplexing functions of RS422 unit and RS485 unit, described main control module is selected to communicate by letter with the RS485 unit by programming Control RS422 unit, and described RS422 unit and RS485 unit have the ability of isolation interference signal; Described CAN module, for the expansion of ISO1050 chip forms, described ISO1050 chip is controlled by the CAN module controller; Described ISO1050 chip has the signal isolating power; Described LONWORKS power carrier module is comprised of PL3120, transmission amplifying circuit, coupling circuit and interface circuit, and described LONWORKS power carrier module is passed through I
2interface and the main control module of C communicate; Described Profibus module is connected with main control module by data/address bus, and described Profibus module comprises the RS485 differential level interface with isolating power; Described wireless module communicates by interface and the main control module of four line SPI; Described electric ethernet module is followed IEEE 802.3-2002 standard, described electric ethernet module comprises MAC controller unit and networked physics layer unit, described electric ethernet module has electric port RJ45, described networked physics layer unit is connected with electric port RJ45, with realize IEEE1588 to the time mode; Described port RJ45 is connected with network; Described optical Ethernet module has 100,000,000 fiber optical transceivers; Described optical Ethernet module and electric ethernet module are integrated in photoelectricity Ethernet conversion chip IP113M.
Ethernet, as current a kind of widely used, network technology of adopting bus topology, obtains applying more and more widely in electric power system.10/100Mbps ethernet controller by controller LM3S9B96 built-in chip type is realized electric ethernet feature.This ethernet controller is comprised of the PHY module of MAC controller MAC module and networked physics layer IEEE1588PTP hardware supports.This device can realize by new IEC61850 standard recommendation as digital transformer substation to the time one of mode, IEEE1588 that there is degree of precision to the time mode.Electricity Ethernet sending and receiving pin is connected to the RJ45 port after by the match circuit be comprised of resistance, electric capacity.
Fiber optic Ethernet is more and more applied in the electric power scene severe due to its strong anti-interference ability, high reliability and in electromagnetic compatible environment.This device CD-ROM drive ethernet feature is by light/electricity conversion Ethernet chip IP113M realization, and the optical port of IP113M chip is connected with HFBR-1115T with 100,000,000 fiber optical transceiver HFBR-2115T; The electric port of IP113M chip is connected to the RJ45 port, and is connected by netting twine with the RJ45 port based on LM3S9B96 built-in chip type ethernet feature, thereby realizes that fiber optic Ethernet information enters and flows out controller LM3S9B96 chip.
The built-in 2 mouth switch kernels that aim at transceiver design of IP113M, can not carry out the inspection of MAC Address mark and CRC check while transmitting packet, entirely/semiduplex mode all can adopt corresponding flow control, supports single mode/multimode fiber conversion, and the maintenance frame of TS21000 standard is provided.By Optical Receivers HFBR-2115T, the light signal that optical fiber is sent here receives with an InGaAS photodiode, change the signal of telecommunication into, after amplifying, preamplifier delivers to quantizer, export complete data-signal by quantizer again, and be connected by behind the connection in series-parallel loop formed by resistance, electric capacity, with the optical fiber of IP113M chip, receiving pin.Simultaneously, the optical fiber of IP113M chip is sent to pin, by behind the connection in series-parallel loop formed by resistance, electric capacity with optical transmission module HFBR-1115T, the optical transmission module of HFBR-1115T changes the signal of telecommunication plastics terminal of light signal by the ST type into the InGaAS photodiode of a 1300nm and sends.
As shown in Figure 4, this electric power system Access Network communicator adopts the PL3120 carrier transmitting-receiving device of simultaneously having assembled neuronal function and power line transmission-receiving function, realize LONWORKS bus functionality and power carrier function, described PL3120 adopts monolithic system mode, subminiature encapsulation mode, support CENELEC-A and CENELEC-C operation, meet the power line rule of a plurality of countries, PL3120 passes through I
2c interface is connected with the LM3S9B96 chip; PL3120 is by the interface circuit consisted of resistance and electric capacity; be connected to the coupling circuit based on electric capacity and inductance; coupling circuit is as the filter between smart transceiver and power supply; can also stop interference signal providing outside the protection of surge and line transients; can be coupled to the AC/DC power transmission line by the terminal of device, or on motorless twisted-pair feeder.
As shown in Figure 5, the Profibus module adopts the SPC3 chip, the SPC3 chip is connected with controller LM3S9B96 chip by the data/address bus mode, because classical Profibus bus adopts the physical layer implementation pattern of RS485, adopt RS485 chip I SO35 with isolation features to realize changing between the Transistor-Transistor Logic level of SPC3 and RS485 differential level.
As shown in Figure 6, wireless module adopts low-cost, the monolithic UHF transceiver C1101 chip of low-power consumption, the RF transceiver is an integrated highly configurable modulator-demodulator, this modulator-demodulator is supported different modulation formats, its data transmission rate can reach 500kbps, be integrated in the forward error recovery option on modulator-demodulator by unlatching, can make performance get a promotion, CC1101 comprises inner the composition: radiating circuit, receiving circuit, the parts such as control interface, CC1101 has a Low-IF receiver, the RF signal received amplifies by low noise amplifier (LNA), to middle frequency (IF), quadrature assigns to change downwards again, under IF, i/q signal is digitized by ADC, automatic gain is controlled (AGC), trickle frequency filtering and the demodulation of position/packet are all by synchronous digital, the transmitter part of CC1101 is directly synthetic based on the RF frequency, frequency synthesizer comprises one and complete chip LCVCO and one, under receiving mode, for producing I and Q signal, produces 90 degree phase shift LO to downward conversion mixer.Controller LM3S9B96 chip is connected with CC1101 by the interface that consists of SPI SCLK, SO, SI, CSn pin, realize that communications parameter configuration, mode of operation are selected, data communication facility, the RF N of C1101 chip, RF P pin are connected to the antenna communication module after match circuit.In order to improve Electro Magnetic Compatibility, RS485/RS422, CAN communication module have all adopted the chip with isolation features, need insulating power supply to supply with, adopt not the power supply chip NKE0503S on ground altogether that 5 volts of power supplys of the system of this device are converted to the insulating power supply of 3.3 volts.
Below each part of the present embodiment electric power system Access Network communicator is explained in detail:
One, main control module
The main control module of this electric power system Access Network communicator has adopted the LM3S9B96 chip of Dezhou device as controller, and this chip operational capability is strong, and memory capacity is large, have multiple communication interface, compatible performance is good, is a towards communication, the microprocessor of automation field, main feature has:
(1) integrated level is high; The LM3S9B96 controller adopts
the Cortex-M3 framework; The Thumb-2 technology can make 16 and 32 bit instructions and deposit, and has brought the active balance of code density and performance; Support SDRAM, SRAM/Flash memory, FPGAs, CPLDs; 4 32 customizers, 2 functions such as WatchDog Timer.
(2) the LM3S9B96 controller has 256KB monocycle Flash memory, and speed can reach 50MHz; 50MHz is above adopts pre-fetching technology to improve performance; The band 96KB monocycle SRAM that simultaneously holds concurrently, the quick operation that saves as processor in larger provides guarantee.
(3) communication and interface function; Master controller has sheet external equipment interface, provides 8/16/32 external equipment special-purpose parallel bus, supports USB2.0, the communication functions such as UART, the SPI of three tunnels support IrDA and ISO 7816 and Ethernet.
(4) the chip price cost is low, and chip development is without expensive developing instrument.
To be converted to the system power supply of 3.3 volts from 5 volts of power supplys of terminal access to plant by power supply chip PQ1LA333MSPQ, and by FAN2558S 12X, provide 2.5 volts of power supplys to controller LM3S9B96 chip simultaneously.Provide crystal oscillator that frequency is 16MHz to shake as the oikocryst of LM3S9B96 chip.The LM3S9B96 chip is connected with computer and carries out chip development by jtag interface.Concrete connection aspect, the 5V power supply enters this device by power supply terminal.Pin 3 and the pin 4 of power supply chip PQ1LA333MSPQ are received the 5V power supply, pin 3 and pin 4 are connected to ground connection after the electric capacity of 2.2uF simultaneously, pin two ground connection, and pin one is connected to ground connection after the electric capacity of 0.01uF, and pin 5 provides the system power supply of 3.3 volts.The pin one of power supply chip FAN2558S12X, pin 3 and pin 4 are all received the 5V power supply, pin two ground connection; Power supply output pin 5 provides 2.5 volts of power supplys, and is connected with pin 7, pin 38, the pin 88 of LM3S9B96 chip, and the decoupling capacitor that is simultaneously 0.1uF, 0.01uF and 2.2uF with capacitance is connected.Pin 48 and pin 49 connect the crystal oscillator that frequency is 16MHz, and pin 48 and pin 49 are all received the electric capacity of 10pF, electric capacity another one pin ground connection simultaneously.The pin 4 of master controller, pin 9, pin two 1, house keeper 45, pin 57, pin 69, pin 82, pin 94 be ground connection all, and pin 3 connects the power supply of 3.3V, connects an electric capacity between pin 3 and pin 4.The pin 77 of LM3S9B96 chip, pin 78, pin 79, pin 80 are connected with pin 7, pin 3, pin one, the pin one 1 of jtag interface respectively.
Two, RS bus module
LM3S9B96 built-in chip type UART, further control respectively RS232 unit, RS422 unit and the RS485 unit in the RS bus module by MAX3250 chip and ISO35 chip.
The MAX3250 chip is the EIA/TIA-232 of a 250kbps of having data transmission rate and communication interface chip V.28/V.24, allows the pressure reduction of RS232 side and logic side existence ± 50V.The FAULT drain pin 25 open circuit outputs of MAX3250 chip produce alarm signal when too high isolation end voltage appears in any road RS-232 input, play the effect of protection chip.The pin one of MAX3250 chip and pin 8, pin two 1 and pin two 7, be connected respectively to the electric capacity of a 0.47uF between pin one 2 and pin one 3.Be connected respectively to the electric capacity of a 0.1uF between pin 9 and pin one 1.Pin one 0, pin one 4 are connected respectively to electric capacity one end of a 0.47uF, and electric capacity another one pin is connected to isolator; Pin two 0 is connected to electric capacity one end of a 0.47uF, and electric capacity another one pin is connected to externally; Pin one 5 is directly connected to isolator.The electric capacity of a 10nF of serial connection isolator and systematically.Be connected aspect with master controller, use the UART2 function of master controller and first group of RS232 function of MAX3250 chip, the pin 4 of MAX3250 chip is connected with LM3S9B96 chip pin 99, the pin two of MAX3250 chip is connected the .RS232 signal by the DB-9 terminal output of standard with LM3S9B96 chip pin 98, the pin one 9 of MAX3250 chip is connected with DB-9 terminal pin two, and the pin one 7 of MAX3250 chip is connected with DB-9 terminal pin 3.
The ISO35 chip is a chip with TIA/EIA 485/422 communication interface, allows to move in the voltage range of 5.0V at 3.3V.On circuit connects, the pin 3 of ISO35 chip and pin 6 are with pin two 6 and the pin two 7 of controller join respectively, the pin 4 of ISO35 chip is connected with pin 5 with the pin 6 of controller respectively with pin 5, can realize selecting RS485 or RS422 function by programming; Pin one 1, pin one 2, pin one 3, pin one 4 are responsible for the transmission-receiving function of signal, in the time will realizing 485 bus functionality, only with pin one 3 and pin one 4; In the time that 422 bus functionality will be realized, to use pin one 1, pin one 2, pin one 3 and pin one 4 simultaneously.The pin two of ISO35 chip, pin 7, pin 8, pin 9, pin one 0, pin one 5 be ground connection all.Pin one is received on the system power supply of 3.3V.The NKE0503S chip transfers the power supply of 5V to the external power source of 3.3V to the ISO35 chip power supply, the pin one ground connection of NKE0503S chip, pin two is received the 5V power supply, and pin 3 is received externally, pin 4 provides the system power supply of 3.3V, and pin 4 is received the pin one 6 of ISO35 chip.
Three, CAN module
The ISO1050 chip is as a CAN bus transceiver with data conductivity of 1Mbps, and it has the signal will received and is delivered to the CAN module controller that is built in the LM3S9B96 chip.In the CAN bus module, accepting pin two and transmission pin 3 and accepting pin 10 and send pin 11 with the LM3S9B96 chip respectively to join of ISO1050 microchip, carry out data interaction.Simultaneously, the pin 6 of ISO1050 and pin 7 are accepted respectively the low and high level of external signal, when external equipment is connected to the data-interface of ISO1050 microchip, external signal is transferred to the LM3S9B96 chip through the ISO1050 chip after relatively, signal after treatment outputs to the ISO1050 chip from the LM3S9B96 chip again, then to external equipment.Aspect auxiliary circuit, the pin 4 of ISO1050 chip and pin 8 ground connection, pin one is received on the system power supply of 3.3V, and the NKE0503S chip transfers the power supply of 5V to the external power source of 3.3V to the ISO1050 chip power supply, and the pin 4 of NKE0503S chip is connected with the pin 5 of ISO1050 chip.
Four, Lonworks power carrier module
Lonworks power carrier module is comprised of PL3120, transmission amplifying circuit, coupling circuit and interface circuit, and it mainly realizes the interface function with the LONWORKS network.
As shown in Figure 4, the pow end is directly linked external power source, and TXOUT receives the transmission amplifier section of chip interface; RXIN is connected to the part that accepts filter of chip.
The RXIN pin of Lonworks network interface circuit, as the input of circuit, is connected to the coupled signal input; RXCOMP holds an external compensating inductance L103, and ground connection, what be attached thereto is respectively the capacitor C 2 of 3900pF and the resistance R 2 of 1K, resistance the ground connection in middle drop-down 1K Europe, R2 joins with the resistance of 3.01K again, the middle capacitor C 3 that connects 330pF, and that join with the size R3 that is 3.01K is the R4 of 1K and the R5 of 4.99K, ground connection after two diodes are connected with R4, size is the join pin one 5 of PL3120 on rear connection of 100pF capacitor C 4 and R5; RXINIC is as the output of circuit, the input end of analog signal of access chip PL3120.
Send amplifying circuit and form differential amplifier circuit by a plurality of BJT pipes, signal is enlarged into to the signal that peak-to-peak value is 7V, and partly joins by interface and the coupling circuit of TXOUT.
On the PL3120 chip 10 is connected with 72 pins with 65 on controller LM3S9B96 chip respectively with 11 pins, to realize I
2c input and output.
Five, Profibus module
The Profibus module is based on the SPC3 chip, and this chip is connected with controller LM3S9B96 chip by bus interface, and the sheet that the sheet of SPC3 chip selects pin one and the outside of LM3S9B96 chip to expand 0 interval selects pin 62 to be connected; The writing of SPC3 chip controlled pin two and the outside expansion of LM3S9B96 chip and write and control pin 53 and be connected; The reading of SPC3 chip controlled pin 4 and read to control pin 52 with the outside expansion of LM3S9B96 chip and be connected; 8 bit address line DB8～DB15 of LM3S9B96 chip be pin 74,75,76,63,42,19,18,41 with SPC3 AB0～the AB7 data wire is that pin one 1,12,15,16,17,20,21,22 is connected, to be pin 83,84,25,24,23,22,86,85 be connected with the DB0 of SPC3～DB7 data wire the least-significant byte address wire DB0～DB7 of LM3S9B96 chip; The major function possessed based on SPC3 exploitation Fieldbus Intelligent slave station is: make the field apparatus with RS 485 interfaces realize transfer of data and control with the Profibus fieldbus, realize open Intercommunication between each single-row field apparatus; The SPC3 chip is connected with the RS485 chip I SO35 with isolation features.Wherein, the reception pin 30 of SPC3 chip, transmission pin 26 are connected with pin 6 with the pin 3 of ISO35 chip respectively; The control pin 27 of SPC3 chip is connected with pin 5 with the pin 4 of ISO35 chip.
The SPC3 chip is used the active crystal oscillator of 48MHZ, and pin 4 connects the 3.3V power supply and the electric capacity of the 0.1 μ F that connects and the drop-down ground connection of pin two; Pin 3 series connection 220 Europe resistance connect SPC3 chip pin 5.
Six, wireless module
The peripheral circuit of the CC1101 chip of wireless module is as shown in 6, and L101, L111, C131, C111, L121, L131, C131 have formed balanced to unbalanced transformer.Pin one 3 and pin one 2 are drawn respectively the inductance L 101 of 12nH, L111, then the two inductance other ends are connected with the capacitor C 111 of 1pF, and inductance L 101 is joined and ground connection with the capacitor C 131 of 1.5pF again, and the inductance of inductance L 111 and 18nH is with after 100pF capacitor C 121 is connected, then ground connection.Connect the inductance L 131 of 18nH at the node place of C131 and C111,18nH inductance L 121 and capacitor C 111 nodes are in and connect 1.5pF capacitor C 122.Inductance L 131 is with after capacitor C 122 is connected, then connects between 12nH inductance L 122 and inductance L 123, two inductance and connect size for 1.3pF capacitor C 123 ground connection, and the inductance L 125 of 3.3nH and inductance L 123 connect antenna after joining.
Two pins of the passive crystal oscillator of 26MHz are connected with No. 7 pins for No. 5 with the crystal oscillator pin of CCll01 chip respectively, and receive ground by the electric capacity of 27nF respectively.
No. 2 pin DCOUPL1 of the decoupling of CCll01 chip are connected with ground with No. 32 pin DCOUPL2 short circuits electric capacity by 100nF.After the resistance of pin RBIAS and 56K joins and ground joins.
CCll01 crosses 4 line SPI interface SOMI, SIMO, SCLK and CSn configuration, CCllol is in from pattern, interface is as the read/write data transmission, on the SPI interface, all operations all comprises a read/write, a burst access position, being used for the identifying sheet list byte read and write/reads and writes byte continuously, and a byte of back 6 bit address is the addresses that indicate corresponding registers.
Seven, electric ethernet module
This device is realized electric ethernet feature by the ethernet controller of the 10/100Mbps of LM3S9B96 built-in chip type, and this ethernet controller is followed IEEE 802.3-2002 standard, MAC controller MAC module and networked physics layer PHY module, consists of.The pin 59 of LM3S9B96 chip is connected with LED2 with LED1 respectively with pin 60, can be used to refer to the state of various operations; In addition, the pin 40 of LM3S9B96 chip is connected with pin 8 with the pin 7 of J3011G21DNL respectively with pin 37; The pin 43 of LM3S9B96 chip is connected with pin 4 with the pin 3 of J3011G21DNL with 46; For pin 33, and should connect the resistance of a 12.4k Ω between ground.12.4k the resistance value admissible error of the resistance of Ω is 1% and tries one's best near ERBIAS pin 33; The crystal oscillator that rate of connections is 25MHz between the pin one 6 of LM3S9B96 chip and pin one 7, and respectively as crystal oscillator output and the input of Ethernet is connected to the two ends of crystal oscillator ground connection after the electric capacity of 10pF simultaneously.The pin 5 of J3011G21DNL all first is connected respectively a resistance with pin 6, then connects the power supply of 3.3V, simultaneously other at power supply and connect the electric capacity of a 0.1uF, then ground connection.The pin one of J3011G21DNL and pin two all connect the 3.3V power supply.Between the pin 37 of LM3S9B96 chip and pin 40 and all connect respectively the resistance in 49.9 Europe between pin 43 and pin 46, power supply at another termination 3.3V of resistance, simultaneously, also all connect respectively ground connection after the electric capacity that the appearance value is 10pF between pin 37 and pin 40 and between pin 43 and pin 46.
Eight, optical Ethernet module
As shown in Figure 7, the fiber optic Ethernet module adopts light/electricity conversion Ethernet chip IP113M, and HFBR-2115TZ and HFBR-1115TZ chip are as transceiver; The HFBR-2115TZ fiber optic receiver, the HFBR-1115TZ fiber optic transmitter, transceiver all adopts the 5V power supply.The pin two of HFBR-2115TZ chip, 3 connects the pin one 3,14 of IP113M chip, and the 130 Europe grounding through resistances of connecting respectively, pin two, 3,14,15 each 82 Europe resistance in parallel connect the 5V power supply and with the capacitances in series ground connection of 0.1 microfarad; Pin one 4 is connected with IP113M chip pin 18; HFBR-1115TZ chip pin 14,15 is connected with IP113M chip pin 16,17 and connects respectively 130 Europe grounding through resistances, simultaneously each 82 Europe resistance in parallel connect the 5V power supply and with the capacitances in series ground connection of 0.1 microfarad; IP113M can be used as the transducer of 10/100BASE-TX to 100BASE-FX converter or 100BASE-FX to 100BASE-FX.IP113M adopts the 2.5V power supply; Pin 5,6 is connected with isolating transformer YL37-1107S pin 8,6; Pin 7,8 is connected with isolating transformer YL37-1107S pin 3,1; The electric port of IP113M chip is connected to the RJ45 port, can be connected with the RJ45 port based on LM3S9B96 built-in chip type ethernet feature, thus the Ethernet fiber functions of implement device.
Above-described embodiment is preferably execution mode of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under Spirit Essence of the present invention and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection scope of the present invention.
Claims (10)
1. an electric power system Access Network communicator, is characterized in that, comprises the RS bus module, CAN module, LONWORKS power carrier module, Profibus module, wireless module, electric ethernet module and the optical Ethernet module that all are connected with main control module; Described main control module is by built-in I
2c, UART, SPI, CAN module controller and ethernet controller, realize the control to RS bus module, CAN module, LONWORKS power carrier module, Profibus module, wireless module, electric ethernet module and optical Ethernet module.
2. electric power system Access Network communicator according to claim 1, is characterized in that, described RS bus module comprises RS232 unit, RS422 unit and RS485 unit; Described main control module communicates by UART and RS232 unit; Described main control module is controlled RS422 unit and RS485 unit by UART, to realize the multiplexing functions of RS422 unit and RS485 unit, described main control module is selected to communicate by letter with the RS485 unit by programming Control RS422 unit, and described RS422 unit and RS485 unit have the ability of isolation interference signal.
3. electric power system Access Network communicator according to claim 1, is characterized in that, described CAN module is that the expansion of ISO1050 chip forms, and described ISO1050 chip is controlled by the CAN module controller.
4. electric power system Access Network communicator according to claim 1, is characterized in that, described LONWORKS power carrier module is comprised of PL3120, transmission amplifying circuit, coupling circuit and interface circuit, and described LONWORKS power carrier module is passed through I
2interface and the main control module of C communicate.
5. electric power system Access Network communicator according to claim 1, is characterized in that, described Profibus module is connected with main control module by data/address bus, and the Profibus module has the differential level interface.
6. electric power system Access Network communicator according to claim 1, is characterized in that, described wireless module communicates by SPI and main control module.
7. electric power system Access Network communicator according to claim 1, it is characterized in that, described electric ethernet module is followed IEEE 802.3-2002 standard, described electric ethernet module comprises MAC controller unit and networked physics layer unit, described electric ethernet module has port RJ45, described port RJ45 is connected with network, and described networked physics layer unit is connected with port RJ45.
8. electric power system Access Network communicator according to claim 1, is characterized in that, described optical Ethernet module has 100,000,000 fiber optical transceivers.
9. electric power system Access Network communicator according to claim 1, is characterized in that, described optical Ethernet module and electric ethernet module are integrated in photoelectricity Ethernet conversion chip.
10. electric power system Access Network communicator according to claim 9, is characterized in that, the name of described photoelectricity Ethernet conversion chip is called IP113M.
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| CN 201220596511 CN202931353U (en) | 2012-11-13 | 2012-11-13 | Electric power system access network communication apparatus |
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| CN 201220596511 CN202931353U (en) | 2012-11-13 | 2012-11-13 | Electric power system access network communication apparatus |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103687093A (en) * | 2013-12-30 | 2014-03-26 | 江苏联宏自动化系统工程有限公司 | Lonworks wireless router |
| CN104243295A (en) * | 2014-10-10 | 2014-12-24 | 国家电网公司 | Intelligent gateway device based on double-network mixed communication |
| CN106850376A (en) * | 2017-03-09 | 2017-06-13 | 中南大学 | A kind of LonWorks gateway units of heavy-load combined train Electronically Controlled Pneumatic Brake Systems |
-
2012
- 2012-11-13 CN CN 201220596511 patent/CN202931353U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103687093A (en) * | 2013-12-30 | 2014-03-26 | 江苏联宏自动化系统工程有限公司 | Lonworks wireless router |
| CN103687093B (en) * | 2013-12-30 | 2016-07-06 | 江苏联宏自动化系统工程有限公司 | Lonworks wireless router |
| CN104243295A (en) * | 2014-10-10 | 2014-12-24 | 国家电网公司 | Intelligent gateway device based on double-network mixed communication |
| CN104243295B (en) * | 2014-10-10 | 2017-08-25 | 国家电网公司 | Intelligent gateway device based on dual network mixed communication |
| CN106850376A (en) * | 2017-03-09 | 2017-06-13 | 中南大学 | A kind of LonWorks gateway units of heavy-load combined train Electronically Controlled Pneumatic Brake Systems |
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