CN103687093B - Lonworks wireless router - Google Patents
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Abstract
The invention discloses a kind of LonWorks wireless router, including power module, LonWorks routing module, LonWorks twisted-pair feeder transceiver and the rf receiver and transmitter being made up of Difference Manchester codec unit, wireless radio frequency modules；Described LonWorks routing module is connected with LonWorks twisted-pair feeder transceiver and rf receiver and transmitter；Described LonWorks twisted-pair feeder transceiver one end is accessed LonWorks twisted-pair feeder, the other end and LonWorks routing module and is connected；Described Difference Manchester codec unit one end and LonWorks routing module connect, and the other end and wireless radio frequency modules are bi-directionally connected.Present invention achieves LonWorks communication, the LonWorks wireless device seamless access LonWorks of network node is controlled in network.
Description
Technical field
The invention belongs to field of wireless communication devices, be specifically related to a kind of LonWorks wireless router.
Background technology
International advanced LonWorks LonWorks, is widely used to remote data acquisition and the system such as transmission, long-range monitoring, monitoring, supervision of various fields.China has promulgated relevant national standard, technical specification, and such as the GB/T20299.4 2006 " building and the application of residential area digitizing technique " of building automation, GBZ20177.1 ~ 4-2006 " controls network LONWORKS technical specification ".Wherein, LonWorks controls network organizing, is will comply with LonMark standard and meet the apparatus for network node of LonTalk agreement, realizes by accessing LonWorks network controller.So far, due to LonWorks network controller, only have twisted-pair feeder and power line carrier wired communication interface, so, Engineering Project Implementation, particularly in building or the LonWorks of built construction controls network service Facilities Construction, transformation, adopts the wire communication mode of Double-strand transmission cable of laying, it is very prominent that the problem of some place engineering construction wiring difficulty shows, and construction cost is significantly high.And adopt the power line carrier, PLC mode of existing electric lines of force, application scenario at similar building, owing to existing for electric line complexity, access the node device of network not at phase power line or the series of problems such as electromagnetism, harmonic wave interference effect, cause that the application effect of PLC technology is unsatisfactory.Therefore, many application scenarios are not for passing through wired mode, it is necessary to adopt the LonWorks wireless device that LonWorks is controlled network node by wireless mode to access LonWorks and control network, are technical problems anxious to be resolved.Along with progress and the development of science and technology, twireless radio-frequency communication technology is extensive use in the systems such as remote data acquisition and transmission, remotely control, pipe integrated, the remote centralized meter-reading of observing and controlling.So, what should adopt communication both can exempt substantial amounts of pipelining, is substantially reduced again difficulty of construction and saves construction cost, and application effect is extremely obvious.
Summary of the invention
Present invention aim to address and control in network at LonWorks, for following LonMark standard and meeting the LonWorks of LonTalk agreement and control the wireless device of network node, seamlessly access LonWorks and control the technical barrier that network is encountered.The present invention provides a kind of uniform protocol and wireless air to transmit LonTalk agreement, can be concurrently accessed the LonWorks wireless device of variety classes, function；All follow LonTalk agreement due to wireless device, therefore equipment can active reporting information；When not having main frame to intervene, can realize between binding and the equipment of variable between equipment can intercommunication, the real wireless device that LonWorks controls network node, accesses the twisted pair channels of LonWorks network controller, it is achieved seamless access LonWorks controls network.
The present invention adopts the technical scheme that: a kind of LonWorks wireless router, including the power module for providing running voltage, the LonWorks routing module being made up of two router chips, LonWorks twisted-pair feeder transceiver and the rf receiver and transmitter being made up of Difference Manchester codec unit, wireless radio frequency modules；Described LonWorks routing module is connected with LonWorks twisted-pair feeder transceiver and rf receiver and transmitter；Described LonWorks twisted-pair feeder transceiver one end is accessed LonWorks twisted-pair feeder, the other end and LonWorks routing module and is connected；Described Difference Manchester codec unit one end and LonWorks routing module connect, and the other end and wireless radio frequency modules are bi-directionally connected.
In such scheme, two router chip U3 and U4 in described LonWorks routing module are bi-directionally connected back-to-back, and each router chip extends out a piece of EEPROM, is used for storing configuration file；The data-in port of router chip U3 therein and data-out port connect data-out port and the data-in port of LonWorks twisted-pair feeder transceiver respectively；The data-in port of another router chip U4 and data-out port connect Difference Manchester codec unit data-out port and data-in port respectively.
In such scheme, voltage protection circuit that described LonWorks twisted-pair feeder transceiver is made up of twisted-pair feeder transceiver module U2, level shifting circuit U1, diode D1A, D1B, D2A, D2B, D3A, D3B, D4A, D4B and the signal coupling circuit that electric capacity C1, C2 are constituted form；Two network input port of described twisted-pair feeder transceiver module U2 are connected with D1A, D1B diode pair in voltage protection circuit and D2A, D2B diode pair respectively；Be used for providing clamper in twisted-pair feeder transceiver module U2, two ports of instantaneous voltage are connected with D3A, D3B diode pair in voltage protection circuit and D4A, D4B diode pair respectively；One end that one end that in voltage protection circuit, D1A, D1B diode pair is connected with twisted-pair feeder transceiver module U2 map network input port is simultaneously connected with in signal coupling circuit electric capacity C1; one end that one end that in voltage protection circuit, D2A, D2B diode pair is connected with twisted-pair feeder transceiver module U2 map network input port is simultaneously connected with in signal coupling circuit electric capacity C2, the other end of C1, C2 connects LonWorks twisted-pair feeder as signal input part；The data-out port of twisted-pair feeder transceiver module U2 is connected with the data-in port of level shifting circuit U1, and the data-out port of U1 is connected to the data input pin of LonWorks routing module data-in port and router chip U3；The data-in port of twisted-pair feeder transceiver module U2 is connected to the data output end of LonWorks routing module data-out port and router chip U3.
In such scheme, each diode pair D1A, D1B in described voltage protection circuit, D2A, D2B, D3A, D3B, D4A, D4B are all reverse connections in parallel.
In such scheme, described power module input is connected to varistor, common mode inductance, electric capacity, for improving the EMC Immunity Performance of power supply；Outfan output 5V DC voltage, for the circuit needing 5V power supply to power in Circuits System or electronic device, is also connected with a voltage stabilizing chip simultaneously and obtains 3.3V voltage, for the components and parts needing 3.3V power supply to power in Circuits System.
In such scheme, described Difference Manchester codec unit is to be made up of fpga chip, for mutually changing between Difference Manchester signal and binary data format.
In such scheme, described LonWorks wireless router also includes the condition indication circuit module being made up of light emitting diode and resistance.
Beneficial effects of the present invention: the present invention has filled up and controlled in network at LonWorks, it is possible to achieve LonWorks communication, and the LonWorks wireless device seamless access LonWorks of network node is controlled this technological gap of network.The communication mode making LonWorks is expanded, and is widely used in remote data acquisition and the transmission of various fields, remotely controls, in the monitoring system such as integrated control and management, remote centralized meter-reading.Meanwhile, make the Wireless Telecom Equipment of each node with netting access, interconnecting without wiring, be substantially reduced difficulty of construction and construction cost.
Accompanying drawing explanation
Fig. 1 is circuit basic structure theory diagram of the present invention；
Fig. 2 is that LonWorks routing module A wing of the present invention is by chip circuit schematic diagram；
Fig. 3 is that LonWorks routing module B wing of the present invention is by chip circuit schematic diagram；
Fig. 4 is LonWorks twisted-pair feeder transceiver circuit schematic diagram of the present invention；
Fig. 5 is the rf receiver and transmitter circuit theory diagrams of the present invention；
Fig. 6 is power module circuitry schematic diagram of the present invention；
Fig. 7 is condition indication circuit schematic diagram of the present invention；
Fig. 8 is binary data, Manchester's code, data waveform figure that Differential Manchester Encoding is corresponding.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described.
Shown in circuit basic structure theory diagram as of the present invention in Fig. 1, the present invention includes the power module for providing running voltage, the LonWorks routing module being made up of two router chips, LonWorks twisted-pair feeder transceiver and the rf receiver and transmitter being made up of Difference Manchester codec unit, wireless radio frequency modules；Described LonWorks routing module is connected with LonWorks twisted-pair feeder transceiver and rf receiver and transmitter；Described LonWorks twisted-pair feeder transceiver one end is accessed LonWorks twisted-pair feeder, the other end and LonWorks routing module and is connected；Described Difference Manchester codec unit one end and LonWorks routing module connect, and the other end and wireless radio frequency modules are bi-directionally connected.
When implementing, we can select Router5000 router chip and FTT-10A twisted-pair feeder transceiver.Power module input is 85～264VAC or 120V～370VDC, exports 5V and 3.3V DC source, provides working power for electronic components such as the chip of each unit, transceiver, wireless radio frequency modules；Connect to form a parallel communication interface by IO0～IO10 between two Router5000, and carried out the communication of bi-directional data by this interface；Each Router5000 is connected with the dissimilar transceiver in outside by CP0 and CP1, and CP0 is data receiver, and CP1 is data sending terminal；FTT-10A twisted-pair feeder transceiver one end is LonWorks twisted-pair communication interface, LonWorks twisted-pair feeder fieldbus can be directly accessed, the other end passes through TXD(data sending terminal mouth) and RXD(data receiver port) communication interface is connected with CP0, CP1 of Router5000, and carries out the exchange of bi-directional data with Router5000；That the FPGA Difference Manchester codec unit present invention selects is the FPGA that model is EP2C5T144C8 that cost performance is higher, the FPGA of other model can also be selected, FPGA is connected with CP0, CP1 of Router5000 by two of which I/O pin, be connected with the serial ports of wireless radio frequency modules again through two other I/O pin, FPGA by I/O port will respectively with Router5000 and wireless radio frequency modules communication.
As shown in Figure 2 and Figure 3, LonWorks routing module circuit, two router chips connect to form back-to-back, we can be selected for Router5000 router chip here；Connect to form a parallel communication interface by IO0～IO10 between two Router5000, and carried out the communication of bi-directional data by this interface；Each Router5000 need to extend out a piece of EEPROM, is used for storing configuration file；Router5000 includes the firmware realizing half route, and this firmware has cured in Router5000 chip when manufacturer production chip；Two Router5000 are adopted to complete one complete router of exploitation, by connecting outside different types of transceiver, it is achieved the routing function between different type network；Routing module one end of the present invention connects FTT-10A twisted-pair feeder transceiver, the other end connects rf receiver and transmitter, and namely the data-in port of router chip U3 and data-out port connect data-out port and the data-in port of LonWorks twisted-pair feeder transceiver respectively；The data-in port of another router chip U4 and data-out port connect Difference Manchester codec unit data-out port and data-in port respectively.
As shown in Figure 4, LonWorks twisted-pair feeder transceiver circuit of the present invention, mainly be can be selected for 74AHCT1G08 by FTT-10A twisted-pair feeder transceiver, level conversion IC(), voltage protection circuit and signal coupling circuit form.Owing to Router5000 is 3.3V power-supply system, and FTT-10A is 5V power supply, therefore the data output end of FTT-10A can not be connected directly to Router5000, utilize 74AHCT1G08 to be then connected to Router5000 after the 5V signal of telecommunication is converted to the 3.3V signal of telecommunication, and the data output signal of Router5000 may be connected directly to the data receiver of FTT-10A；D1～D4 is 4 diode pairs, carries out fashionable playing a protective role when communication line has more than the signal of normal voltage value, and C8, C9 are signal coupling electric capacity.Two network input port being specifically connected as twisted-pair feeder transceiver module U2 are connected with D1A, D1B diode pair in voltage protection circuit and D2A, D2B diode pair respectively；Be used for providing clamper in twisted-pair feeder transceiver module U2, two ports of instantaneous voltage are connected with D3A, D3B diode pair in voltage protection circuit and D4A, D4B diode pair respectively；One end that one end that in voltage protection circuit, D1A, D1B diode pair is connected with twisted-pair feeder transceiver module U2 map network input port is simultaneously connected with in signal coupling circuit electric capacity C1; one end that one end that in voltage protection circuit, D2A, D2B diode pair is connected with twisted-pair feeder transceiver module U2 map network input port is simultaneously connected with in signal coupling circuit electric capacity C2, the other end of C1, C2 connects LonWorks twisted-pair feeder as signal input part；The data-out port of twisted-pair feeder transceiver module U2 is connected with the data-in port of level shifting circuit U1, and the data-out port of U1 is connected to the data input pin of LonWorks routing module data-in port and router chip U3；The data-in port of twisted-pair feeder transceiver module U2 is connected to the data output end of LonWorks routing module data-out port and router chip U3.
As it is shown in figure 5, wireless transceiver is made up of FPGA Manchester Code/decode unit and wireless radio frequency modules.Due to Router5000 transmitting-receiving is Difference Manchester signal, and all of wireless radio frequency modules generally only supports Transistor-Transistor Logic level or tri-kinds of interfaces of RS232/RS485, therefore, directly Router5000 cannot be connected communication, it is necessary to convert the Difference Manchester signal of Router5000 to the discernible binary data format of wireless radio frequency modules serial ports (binary code) with wireless radio frequency modules.For this, an intermediate treatment unit is needed between Router5000 and wireless radio frequency modules, Differential Manchester Encoding signal it is decoded into binary data format and binary data format is encoded into Difference Manchester signal, making to set up communication mechanism by this intermediate treatment unit between Router5000 and wireless radio frequency modules.The present invention designs FPGA Difference Manchester codec unit, it is exactly the coding and the decoding process that carry out difference Man Chesi signal as intermediate treatment unit, FPGA one end is made to be connected with data transmit-receive port CP0, CP1 of Router5000, the other end is connected with the communication serial port of wireless radio frequency modules, after FPGA Difference Manchester codec unit receives the CP1 of the Router5000 Differential Manchester Encoding signal sent, being decoded work immediately and convert data to binary data, the serial ports then passing through simulation sends the data to wireless radio frequency modules.In like manner, after FPGA receives the data of wireless radio frequency modules by serial ports, it is encoded being converted to binary data Differential Manchester Encoding signal immediately, is transferred to the CP0 mouth of Router5000.(a) figure to be binary data, (b) figure be Manchester's code as shown in Figure 8, (c) figure are the data waveform figure corresponding to Differential Manchester Encoding, FPGA in the present invention is exactly the waveform that the waveform of c figure converts to a, or the waveform of a converts to the waveform of c.Meanwhile, due to FPGA Difference Manchester codec unit, it is be transmitted by wireless radio frequency modules after directly the transceiving data of Router5000 being carried out encoding and decoding or receive, therefore, radio communication space propagation meets LonTalk agreement without concrete protocol contents is carried out any dissection process, it is implementation the most simply and easily, reduces R&D cycle and difficulty, and improve the stability of equipment.The present invention selects the FPAG that model is EP2C5T144C8 that sexual valence is higher, it is possible to select the fpga chip of other model；Wireless radio frequency modules can be selected for the wireless module of tool RS232 communication interface general on market, such as wireless radio frequency modules such as 433MHz, 470MHz, Zigbee.
As shown in Figure 6, Power Management Design is AC/DC universal Switching Power Supply, adapt to 85 ~ 264VAC, 120V ~ 370VDC powers, adopt modular AC/DC power module, improve the reliability and stability of power supply, the design of AC/DC power module input has electric fuse, varistor, common mode inductance, X electric capacity, further increases the EMC Immunity Performance of power supply；AC/DC outfan output 5V DC source, for the circuit needing 5V power supply to power in the present invention or electronic device, such as wireless radio frequency modules, FTT-10A transceiver；5V power supply obtains 3.3V power supply again through SPX1117-3.3 voltage stabilizing chip, for the components and parts needing 3.3V power supply to power in the present invention, such as FPGA, Router5000.
Fig. 7 is condition indication circuit schematic diagram of the present invention, the configuration status beacon lamp of major design router and the data transmit-receive status indicator lamp at two ends, for the instruction of the instruction of router duty and data communication.
Part that the present invention does not relate to is all same as the prior art maybe can adopt prior art to be realized.
Claims (6)
1. a LonWorks wireless router, it is characterized in that: include the power module for providing running voltage, the LonWorks routing module being made up of two router chips, LonWorks twisted-pair feeder transceiver and the rf receiver and transmitter being made up of Difference Manchester codec unit, wireless radio frequency modules；Described LonWorks routing module is connected with LonWorks twisted-pair feeder transceiver and rf receiver and transmitter；Described LonWorks twisted-pair feeder transceiver one end is accessed LonWorks twisted-pair feeder, the other end and LonWorks routing module and is connected；Described Difference Manchester codec unit one end and LonWorks routing module connect, and the other end and wireless radio frequency modules are bi-directionally connected；Two router chip U3 and U4 in described LonWorks routing module are bi-directionally connected back-to-back, and each router chip extends out a piece of EEPROM, is used for storing configuration file；Wherein the data-in port of router chip U3 and data-out port connect data-out port and the data-in port of LonWorks twisted-pair feeder transceiver respectively；The data-in port of another router chip U4 and data-out port connect Difference Manchester codec unit data-out port and data-in port respectively.
2. a kind of LonWorks wireless router according to claim 1, it is characterised in that: voltage protection circuit that described LonWorks twisted-pair feeder transceiver is made up of twisted-pair feeder transceiver module U2, level shifting circuit U1, diode D1A, D1B, D2A, D2B, D3A, D3B, D4A, D4B and the signal coupling circuit that electric capacity C1, C2 are constituted form；Two network input port of described twisted-pair feeder transceiver module U2 are connected with D1A, D1B diode pair in voltage protection circuit and D2A, D2B diode pair respectively；Be used for providing clamper in twisted-pair feeder transceiver module U2, two ports of instantaneous voltage are connected with D3A, D3B diode pair in voltage protection circuit and D4A, D4B diode pair respectively；One end that one end that in voltage protection circuit, D1A, D1B diode pair is connected with twisted-pair feeder transceiver module U2 map network input port is simultaneously connected with in signal coupling circuit electric capacity C1; one end that one end that in voltage protection circuit, D2A, D2B diode pair is connected with twisted-pair feeder transceiver module U2 map network input port is simultaneously connected with in signal coupling circuit electric capacity C2, the other end of C1, C2 connects LonWorks twisted-pair feeder as signal input part；The data-out port of twisted-pair feeder transceiver module U2 is connected with the data-in port of level shifting circuit U1, and the data-out port of U1 is connected to LonWorks routing module data-in port；The data-in port of twisted-pair feeder transceiver module U2 is connected to LonWorks routing module data-out port.
3. a kind of LonWorks wireless router according to claim 2, it is characterised in that: each diode pair D1A, D1B in described voltage protection circuit, D2A, D2B, D3A, D3B, D4A, D4B are all reverse connections in parallel.
4. a kind of LonWorks wireless router according to claim 1, it is characterised in that: described power module input is connected to varistor, common mode inductance, electric capacity, for improving the EMC Immunity Performance of power supply；Outfan output 5V DC voltage, for the circuit needing 5V power supply to power in Circuits System or electronic device, is also connected with a voltage stabilizing chip simultaneously and obtains 3.3V voltage, for the components and parts needing 3.3V power supply to power in Circuits System.
5. a kind of LonWorks wireless router according to claim 1, it is characterised in that: described Difference Manchester codec unit is to be made up of fpga chip, for mutually changing between Difference Manchester signal and binary data format.
6. a kind of LonWorks wireless router according to claim 1, it is characterised in that: described LonWorks wireless router also includes the condition indication circuit module being made up of light emitting diode and resistance.
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| CN201310740911.3A CN103687093B (en) | 2013-12-30 | 2013-12-30 | Lonworks wireless router |
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Address after: 210046 Nanjing City, Qixia Province, Gan east side of the east side of the building 108, building 01, No. 6, No. Patentee after: Jiangsu alliance wisdom energy Limited by Share Ltd Address before: 210046 Nanjing City, Qixia Province, Gan east side of the east side of the building 108, building 01, No. 6, No. Patentee before: Nanjing Lianhong Automatization System Engineering Co., Ltd. |
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Denomination of invention: LonWorks wireless router Effective date of registration: 20200108 Granted publication date: 20160706 Pledgee: Nanjing Bank Co., Ltd. Nanjing North Branch Pledgor: Jiangsu alliance wisdom energy Limited by Share Ltd Registration number: Y2020320000021 |
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Date of cancellation: 20210506 Granted publication date: 20160706 Pledgee: Nanjing Bank Co.,Ltd. Nanjing North Branch Pledgor: JIANGSU LIANHONG SMART ENERGY Co.,Ltd. Registration number: Y2020320000021 |
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Denomination of invention: LonWorks wireless router Effective date of registration: 20220124 Granted publication date: 20160706 Pledgee: Nanjing Bank Co.,Ltd. Nanjing North Branch Pledgor: JIANGSU LIANHONG SMART ENERGY CO.,LTD. Registration number: Y2022980000990 |
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