CN106028610A - OFDM technique-based intelligent single lamp controller for high pressure sodium lamp - Google Patents
OFDM technique-based intelligent single lamp controller for high pressure sodium lamp Download PDFInfo
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- CN106028610A CN106028610A CN201610622911.7A CN201610622911A CN106028610A CN 106028610 A CN106028610 A CN 106028610A CN 201610622911 A CN201610622911 A CN 201610622911A CN 106028610 A CN106028610 A CN 106028610A
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/14—Circuit arrangements
- H05B41/36—Controlling
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
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Abstract
The invention discloses an OFDM technique-based intelligent single lamp controller for a high pressure sodium lamp. The controller comprises an AC-DC module connected between a firing line and a null line, the firing line and the null line are further connected with a coupling transformer separately, the coupling transformer is connected with an analog front end chip, the analog front end chip is connected with a DSP chip through an SPI interface, and the DSP chip is connected with a single chip microcomputer through a serial port, wherein the type of the single chip microcomputer is MSP430; the single chip microcomputer is further connected with a metering module through a serial port, an I2C interface of the single chip microcomputer is connected with a storage chip, a first IO interface on the single chip microcomputer is connected with a first relay drive circuit, a second IO interface on the single chip microcomputer is connected with a second relay drive circuit, and both the first relay drive circuit and the second relay drive circuit are connected with a variable-power ballast. The controller adopts a power line carrier technique and optimized power regulation, can be suitable for a complex network structure and ensures the safety and the reliability of the equipment.
Description
Technical field
The present invention relates to roam lamp control device, a kind of intellectual single light controller being applicable to high-pressure mercury lamp based on OFDM technology, belong to technology of Internet of things field.
Background technology
The information system in current street lamp field is mainly the Three-tele system to line management, and this system can not realize energy-conservation, can not realize the management become more meticulous.In order to realize road lamp energy-saving, realize, every one bright one, although this mode achieves energy-conservation, but the requirement of the roadway illumination uniformity to be met, also additionally increasing construction cost and the maintenance cost of circuit by the independent loop of increase the most at present.Although realizing energy-conservation by using Variable power ballast scheme also single lamp can be carried out power adjustment, but this scheme can only simple timing adjustment, use dumb convenience, it is impossible to be attached with platform, management status can not be changed, the most do not obtain the accreditation of most of client.In order to solve the problems referred to above, single lamp monitoring occurs as the third generation product in street lamp field.Current single lamp product is broadly divided into two big classes, i.e. based on ZigBee technology and the product of PLC technology.In street lamp application field, ZigBee exists with frequency and dense traffic interference etc., the problem that communication reliability is the highest, therefore can not be accepted by most of users.And power carrier is to utilize existing public lighting circuit to carry out data transmission, it it is a kind of preferably communication mode.But the commonly used modulation system based on FSK of current power carrier, it exists anti-interference weak, and speed is extremely slow (300bps ~ 600bps), and there is no the defect of the drawbacks such as complete protocol stack, can only realize simplex, therefore Consumer's Experience is poor, it is difficult to obtain large-scale popularization.Additionally, the controller of the existing overwhelming majority at present is primarily directed to the application of LED, LED can be carried out light modulation and realize energy-conservation, but when this controller is applied on high-pressure mercury lamp, just can only carry out turning off energy-conservation, it is impossible to power is adjusted.
Summary of the invention
For above-mentioned deficiency of the prior art, present invention is primarily targeted at solution can not power be modulated when controlling high-pressure mercury lamp the most at present, thus it is difficult to meet the problem of energy saving requirement, and provide a kind of and be capable of the intellectual single light controller being applicable to high-pressure mercury lamp based on OFDM technology that power adjusts.
Technical scheme: a kind of intellectual single light controller being applicable to high-pressure mercury lamp based on OFDM technology, it is characterized in that, including the AC-DC module being connected between live wire and zero line, described live wire is connected with coupling transformer the most respectively with zero line, described coupling transformer is connected with analog front-end chip, described analog front-end chip is connected with dsp chip by SPI interface, and described dsp chip is connected with single-chip microcomputer by serial ports, and the model of described single-chip microcomputer is MSP430；Described single-chip microcomputer is connected with metering module also by serial ports, the I2C interface of single-chip microcomputer connects and has storage chip, an I/O interface and the first relay drive circuit on single-chip microcomputer are connected, another I/O interface and the second relay drive circuit on single-chip microcomputer are connected, and described first relay drive circuit and the second relay drive circuit are all connected with Variable power ballast.
Optimally, described Variable power ballast includes trigger, described trigger and inductance L1, loop is formed after the A contact series of relay switch K2, the B contact of described relay switch K2 is connected with the metal plectrum of relay switch K1, the D contact of described relay switch K2 is connected to one end of inductance L3, the C contact of relay switch K2 is connected to the other end of inductance L3, the other end of described inductance L3 also one end with inductance L2 is connected, the other end of inductance L2 is connected between the A contact of inductance L1 and relay switch K2, voltage protection also it is parallel with at described trigger two ends.
The control method of a kind of intellectual single light controller being applicable to high-pressure mercury lamp based on OFDM technology as above, it is characterised in that single-chip microcomputer realizes task scheduling according to its SYS/BIOS operating system being internally embedded, and carries out following steps simultaneously:
1) single-chip microcomputer sends data to dsp chip, after dsp chip carries out protocol encapsulation process by G3 protocol stack to data, the digital signal of modulation is sent to analog front-end chip, analog front-end chip is sent to coupling transformer after being amplified by digital signal, the digital signal received is sent on live wire by coupling transformer, coupling transformer receives power carrier data from live wire simultaneously, coupling transformer by the power carrier data feedback that receives to analog front-end chip after, it is filtered being processed and converted to digital signal to the data received by analog front-end chip, it is then sent to dsp chip, the power carrier data received are sent to single-chip microcomputer by described dsp chip again；
2) single-chip microcomputer is connected with metering module by serial ports, and gathers voltage, electric current and power parameter by metering module；
3) single-chip microcomputer is connected with storage chip by I2C interface, and by storage chip storage system configuration parameter and electric parameter；
4) single-chip microcomputer is connected with the first relay drive circuit and the second relay drive circuit respectively by I/O interface, and by controlling redirecting of the first relay drive circuit and the second relay drive circuit, the algorithm for power modulation of control Variable power ballast.
Optimally, the power line carrier, PLC of described power carrier data acquisition OFDM modulation, described power carrier data acquisition G3 protocol stack is as power carrier protocol stack, TCP/IP is used to build Internet and transport layer on G3 protocol stack basis, and on TCP/IP basis, define application layer again, realize complete protocol stack, described complete protocol stack includes physical layer, MAC layer, Internet, transport layer and application layer, a width of 10KHz ~ the 90KHz of power line carrier, PLC band of described OFDM modulation, speed is 46kbps.
The present invention is directed to the application of high-pressure mercury lamp, mainly solve two problems, i.e. use the power of new PLC technology and optimization to adjust.Power line carrier, PLC uses OFDM modulation technique, carries a width of 10KHz ~ 90KHz, and speed is up to 46kbps；Power carrier protocol stack uses G3 protocol stack, it is achieved real duplex communication；Use the MESH technology in 802.11 to realize quickly networking, and can be suitably used for the network structure of complexity；Power carrier data acquisition AES technology is encrypted.Sodium vapor lamp carrying out two stage power adjustment, i.e. when voltage is higher than nominal value (220V), carries out first order power adjustment, make power stability in rated operating range, at car, few people is dilute after midnight, carries out second level power adjustment, reduces the Power operation of half.Additionally, the Novel connecting method of Variable power also can reduce the material consumption of Variable power.
Relative to prior art, the method have the advantages that
1, the present invention is directed to the application of high-pressure mercury lamp, the power that have employed PLC technology and optimization adjusts.Its power line carrier, PLC uses OFDM modulation technique, carries a width of 10KHz ~ 90KHz, and speed is up to 46kbps；Power carrier protocol stack uses G3 protocol stack, it is achieved real duplex communication；Use the MESH technology in 802.11 to realize quickly networking simultaneously, and can be suitably used for complicated network structure, also power carrier data acquisition AES technology is encrypted, has ensured the safety and reliability of equipment.
2, the present invention has carried out two stage power adjustment to sodium vapor lamp, i.e. when voltage is higher than nominal value (220V), carry out first order power adjustment, make power stability in rated operating range, at car, few people is dilute after midnight, carries out second level power adjustment, reduces the Power operation of half, there is good power adjustments effect, the material consumption of Variable power can also be reduced simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation that the present invention is applicable to the intellectual single light controller of high-pressure mercury lamp based on OFDM technology.
Fig. 2 is the wiring diagram of Variable power ballast in the present invention.
Detailed description of the invention
The invention will be further described with detailed description of the invention below in conjunction with the accompanying drawings.
As shown in Figure 1, a kind of intellectual single light controller being applicable to high-pressure mercury lamp based on OFDM technology, it includes the AC-DC module being connected between live wire and zero line, described live wire is connected with coupling transformer the most respectively with zero line, described coupling transformer is connected with analog front-end chip, described analog front-end chip is connected with dsp chip by SPI interface, and described dsp chip is connected with single-chip microcomputer by serial ports, and the model of described single-chip microcomputer is MSP430；Described single-chip microcomputer is connected with metering module also by serial ports, the I2C interface of single-chip microcomputer connects and has storage chip, an I/O interface and the first relay drive circuit on single-chip microcomputer are connected, another I/O interface and the second relay drive circuit on single-chip microcomputer are connected, and described first relay drive circuit and the second relay drive circuit are all connected with Variable power ballast.
In the present invention, live wire and zero line are connected with AC-DC module, and exchange is become direct current by AC-DC module, and the power supply needed for providing for each chip, and the connection between AC-DC module and modules here belongs to prior art, is therefore not described here in detail.During wiring, live wire and zero line are also connected with power carrier analog front-end chip, i.e. analog front-end chip receives the modulated digital signal made from dsp chip and is amplified, it would be desirable to the data of transmission are sent on live wire by coupling transformer；Meanwhile, analog front-end chip receives the power carrier data on live wire by coupling transformer, and to relevant treatment such as the power carrier data received are filtered and be converted into digital signal and feed back to dsp chip, dsp chip is then forwarded to single-chip microcomputer.
In the present invention, dsp chip (its model can be TMS320F28069, TMS320F28PLC84 etc.) is attached with analog front-end chip by SPI interface.Dsp chip (its model can be TMS320F28069, TMS320F28PLC84 etc.) realizes the protocol stack of OFDM modulation technique and power carrier.The communication bandwidth of OFDM modulation is 10KHz ~ 90KHz, and speed can be up to 46kbps.The protocol stack of power carrier uses complete G3 protocol stack, and it is capable of real duplex communication.Here MSP430 single-chip microcomputer controls for the core of whole product, and single-chip microcomputer is connected with dsp chip by serial ports, it is achieved the transmission of data and reception.MSP430 single-chip microcomputer is connected with metering module by serial ports, it is achieved the isoparametric collection of voltage, electric current, power.MSP430 single-chip microcomputer is connected with storage chip by I2C interface, it is achieved system configuration parameter and the storage of electric parameter.MSP430 single-chip microcomputer is connected with the first relay drive circuit and the second relay drive circuit respectively by I/O interface, for controlling redirecting of relay, thus controls the modulation of power.
See Fig. 2, described Variable power ballast includes trigger, described trigger and inductance L1, loop is formed after the A contact series of relay switch K2, the B contact of described relay switch K2 is connected with the metal plectrum of relay switch K1, the D contact of described relay switch K2 is connected to one end of inductance L3, the C contact of relay switch K2 is connected to the other end of inductance L3, the other end of described inductance L3 also one end with inductance L2 is connected, the other end of inductance L2 is connected between the A contact of inductance L1 and relay switch K2, voltage protection also it is parallel with at described trigger two ends.
When carrying out the algorithm for power modulation of Variable power ballast, two relay drive circuits control different relays respectively, thus realize first order power and adjust and the adjustment of second level power.Its operation principle is as follows: single-chip microcomputer detects when voltage is higher than nominal value, and single-chip microcomputer sends ON signal, the contact that relay switch connects to out to the first relay drive circuit, is achieved in that the modulation of first order power.When voltage returns to normal value, single-chip microcomputer sends OFF signal to the first relay drive circuit, and relay switch connects to the contact closed, and thus recovers nominal power and runs.Storage chip has the timetable of fall power, single-chip microcomputer reads the timetable of downrating, if current time comes into the downrating time, then single-chip microcomputer sends ON signal to the second relay drive circuit, the contact that relay connects to out, is achieved in that the adjustment of second level power.If current time is introduced into the downrating time, then single-chip microcomputer sends OFF signal to the second relay drive circuit, and relay connects to the contact closed, and exits second level power and adjusts.Single-chip microcomputer periodically (being spaced 30 minutes or 60 minutes) upload the electric parameter collected.Single-chip microcomputer carries out accident analysis by the electric parameter collected, if faulty, then warning information is uploaded to platform.Illustrate below in conjunction with Fig. 2: in Fig. 2, L1 is the nominal inductance that the inductance of nominal power, i.e. 250W or 400W are corresponding.L2 is the inductance that first order power adjusts.L2+L3 is the inductance that second level power adjusts, and second level power adjusts and shared the inductance that first order power adjusts, and this design has the material consumption of minimum, is also simplest mode in technique.When K2 relay is connected to A contact, then run according to nominal power.When overtension, then K2 relay is connected to B contact, and K1 relay is connected to C contact, carries out first order power adjustment.When voltage is normal, then when K2 relay is connected to A contact, recover nominal power and run.At car, few people is dilute after midnight, and K2 relay is connected to B contact, and K1 relay is connected to D contact, carries out second level power adjustment.
The controller of the present invention is operationally, use following control method, single-chip microcomputer realizes task scheduling according to its SYS/BIOS operating system being internally embedded, and queue based on SYS/BIOS, mailbox, event, interruption and signal carry out the scheduling between exchange and the multitask of data.On SYS/BIOS task scheduling basis, different tasks is used to realize different application functions, such as energy-saving run, electric parameter collection, breakdown judge, the transmission of power carrier and reception etc., each task realizes concrete Business Processing, realize task scheduling by SYS/BIOS, carry out synchronizing and data exchange by interruption, event, mailbox etc. between each task.After the data sent carry out protocol encapsulation process by complete protocol stack, it is sent on cable.After the data received from cable carry out protocol analysis process by complete protocol stack, carry out follow-up business process.SYS/BIOS operating system operationally, carries out following steps simultaneously:
1) single-chip microcomputer sends task scheduling data to dsp chip, after dsp chip carries out protocol encapsulation process by G3 protocol stack to task data, the digital signal of modulation is sent to analog front-end chip, analog front-end chip is sent to coupling transformer after being amplified by digital signal, the digital signal received is sent on live wire by coupling transformer, coupling transformer receives power carrier data from live wire simultaneously, coupling transformer by the power carrier data feedback that receives to analog front-end chip after, it is filtered being processed and converted to digital signal to the data received by analog front-end chip, it is then sent to dsp chip, described dsp chip will convert into the power carrier data of digital signal again and is sent to single-chip microcomputer；
2) single-chip microcomputer is connected with metering module by serial ports, and gathers voltage, electric current and power parameter by metering module；
3) single-chip microcomputer is connected with storage chip by I2C interface, and by storage chip storage system configuration parameter and electric parameter；
4) single-chip microcomputer is connected with the first relay drive circuit and the second relay drive circuit respectively by I/O interface, and by controlling redirecting of the first relay drive circuit and the second relay drive circuit, the algorithm for power modulation of control Variable power ballast.
In the present invention, the power line carrier, PLC of described power carrier data acquisition OFDM modulation, described power carrier data acquisition G3 protocol stack is as power carrier protocol stack；Use TCP/IP to build Internet and transport layer on G3 protocol stack basis, and on TCP/IP basis, define application layer again, it is achieved complete protocol stack.Described complete protocol stack includes physical layer, MAC layer, Internet, transport layer and application layer, it is achieved complete protocol stack.A width of 10KHz ~ the 90KHz of power line carrier, PLC band of described OFDM modulation, speed is 46kbps.In G3 protocol stack, physical layer, low MAC layer and 6LoWPAN layer constitute G3 protocol stack, the lowest MAC layer and 6LoWPAN layer and constitute MAC layer.Using IPv6 to realize converging, it is achieved concrete Network layer function, use UDP and ICMP to realize concrete transport layer functionality, the superiors are application layer protocol.Physical layer realizes OFDM modulation technique and coding etc., and subband can use DBPSK, DQPSK, D8PSK etc., coding to use forward error correction coding technology.MAC layer mainly realizes the function such as bus contention, networking, and bus contention uses CSMA-CA technology, and networking uses MESH networking technology.Internet and transport layer use the TCP/IP technology of standard, use the lwIP increased income to transplant, and for street lamp application situation and simplification protocol stack, only realize IPv6, UDP, ICMP, and TCP etc. no longer realizes.Application layer mainly realizes the agreement for street lamp application, and application protocol requires to use flexibly, it is simple to extension.
Being provided with message header and message body in application protocol, message body mainly includes address field, data segment and CRC.Address field includes address overall length and address TLV, just can include multiple address by address overall length and address TLV.TLV be concrete address date, i.e. T be Tag, represent address label, be used for distinguish different equipment and different address styles, as " NT01 " represents single sodium vapor lamp, " ET01 " represents single led lamp, and " NT99 " represents all sodium vapor lamps；L represents the length of address；V represents concrete address date.Data segment includes data overall length and data TLV, just can include multiple data by data overall length and data TLV, such as can transmit the electric parameters such as voltage, electric current, power, it is also possible to only pass part simultaneously, the most flexible, and is very easy to extension.When extending different parameters, it is only necessary to increasing different TLV the most permissible, data TLV are similar with address TLV, are not further described herein.
The present invention uses OFDM modulation technology power line carrier, PLC, and in the range of 10KHz ~ 90KHz, traffic rate is up to 46Kbps, it is achieved complete communication protocol stack, it is achieved real duplex communication.Product of the present invention carries out the two stage power of optimum and adjusts sodium vapor lamp, and energy-saving effect is up to more than 40%.
It should be noted that, above example is only in order to illustrate technical solution of the present invention rather than restriction technologies scheme, although the present invention is explained in detail by applicant with reference to preferred embodiment, it will be understood by those within the art that, those amendments that technical solution of the present invention is carried out or equivalent, objective and the scope of the technical program can not be departed from, all should contain in the middle of scope of the invention as claimed.
Claims (4)
1. the intellectual single light controller being applicable to high-pressure mercury lamp based on OFDM technology, it is characterized in that, including the AC-DC module being connected between live wire and zero line, described live wire is connected with coupling transformer the most respectively with zero line, described coupling transformer is connected with analog front-end chip, described analog front-end chip is connected with dsp chip by SPI interface, and described dsp chip is connected with single-chip microcomputer by serial ports, and the model of described single-chip microcomputer is MSP430；Described single-chip microcomputer is connected with metering module also by serial ports, the I2C interface of single-chip microcomputer connects and has storage chip, an I/O interface and the first relay drive circuit on single-chip microcomputer are connected, another I/O interface and the second relay drive circuit on single-chip microcomputer are connected, and described first relay drive circuit and the second relay drive circuit are all connected with Variable power ballast.
A kind of intellectual single light controller being applicable to high-pressure mercury lamp based on OFDM technology the most according to claim 1, it is characterized in that, described Variable power ballast includes trigger, described trigger and inductance L1, loop is formed after the A contact series of relay switch K2, the B contact of described relay switch K2 is connected with the metal plectrum of relay switch K1, the D contact of described relay switch K2 is connected to one end of inductance L3, the C contact of relay switch K2 is connected to the other end of inductance L3, the other end of described inductance L3 also one end with inductance L2 is connected, the other end of inductance L2 is connected between the A contact of inductance L1 and relay switch K2, voltage protection also it is parallel with at described trigger two ends.
3. the control method of the intellectual single light controller being applicable to high-pressure mercury lamp based on OFDM technology as claimed in claim 1, it is characterized in that, single-chip microcomputer realizes task scheduling according to its SYS/BIOS operating system being internally embedded, and carries out following steps simultaneously:
1) single-chip microcomputer sends data to dsp chip, after dsp chip carries out protocol encapsulation process by G3 protocol stack to data, the digital signal of modulation is sent to analog front-end chip, analog front-end chip is sent to coupling transformer after being amplified by digital signal, the digital signal received is sent on live wire by coupling transformer, coupling transformer receives power carrier data from live wire simultaneously, coupling transformer by the power carrier data feedback that receives to analog front-end chip after, it is filtered being processed and converted to digital signal to the data received by analog front-end chip, it is then sent to dsp chip, the power carrier data received are sent to single-chip microcomputer by described dsp chip again；
2) single-chip microcomputer is connected with metering module by serial ports, and gathers voltage, electric current and power parameter by metering module；
3) single-chip microcomputer is connected with storage chip by I2C interface, and by storage chip storage system configuration parameter and electric parameter；
4) single-chip microcomputer is connected with the first relay drive circuit and the second relay drive circuit respectively by I/O interface, and by controlling redirecting of the first relay drive circuit and the second relay drive circuit, the algorithm for power modulation of control Variable power ballast.
The control method of a kind of intellectual single light controller being applicable to high-pressure mercury lamp based on OFDM technology the most according to claim 3, it is characterized in that, the power line carrier, PLC of described power carrier data acquisition OFDM modulation, described power carrier data acquisition G3 protocol stack is as power carrier protocol stack；TCP/IP is used to build Internet and transport layer on G3 protocol stack basis, and on TCP/IP basis, define application layer again, realize complete protocol stack, described complete protocol stack includes physical layer, MAC layer, Internet, transport layer and application layer, a width of 10KHz ~ the 90KHz of power line carrier, PLC band of described OFDM modulation, speed is 46kbps.
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| CN201610622911.7A CN106028610A (en) | 2016-08-02 | 2016-08-02 | OFDM technique-based intelligent single lamp controller for high pressure sodium lamp |
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| CN201610622911.7A CN106028610A (en) | 2016-08-02 | 2016-08-02 | OFDM technique-based intelligent single lamp controller for high pressure sodium lamp |
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