CN105682290B - A kind of street lamp central controller of direct utilization power line transmission signals - Google Patents
A kind of street lamp central controller of direct utilization power line transmission signals Download PDFInfo
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- CN105682290B CN105682290B CN201610107499.5A CN201610107499A CN105682290B CN 105682290 B CN105682290 B CN 105682290B CN 201610107499 A CN201610107499 A CN 201610107499A CN 105682290 B CN105682290 B CN 105682290B
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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
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
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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
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
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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
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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Abstract
The invention discloses a kind of street lamp central controller of direct utilization power line transmission signals, the street lamp central controller is by power line and connects multiple street lamps, and the street lamp central controller directly sends dimming control signal by power line to the street lamp；The street lamp central controller includes the first power module, power line signal sending module, main control module, ammeter module, key-press module, display module and remote data communication module.Using technical scheme, realized by a kind of simple circuit structure and directly utilize power line transmission street light modulating control signal；Simultaneously, it is only necessary to which the power line AC signal of a cycle just can realize the transmission of dimming control signal, greatly ensure that the stabilization of power grids；Further, dimming control signal at least retains half-wave complete in signal period ac signal as energy supply, even if the angle of flow very hour, dimming process is also not in scintillation.
Description
Technical field
Control is concentrated the invention belongs to the street lamp in Street lamps control field, more particularly to a kind of direct utilization power line transmission signals
Device processed.
Background technology
With developing rapidly for LED technology, intelligent dimming is widely used, especially in field of street lamp lighting, and street lamp is adjusted
Photocontrol being capable of reasonable distribution road lighting, the saving energy.Prior art street light modulating system is mostly just by power line
Street lamp provides power supply energy, and can not directly pass through power line transmission control signal.The road lamp system of certain prior art is also adopted
The transmission of data and energy can be realized simultaneously by power line with the mode of power line carrier, but power line carrier mode is logical
High-frequency carrier signal of the coupling with information on power line is crossed, each street lamp end is extracted by the detection of carrier module high frequency and sent
Information so as to realizing brightness adjustment control；Accordingly, it would be desirable to power line carrier circuit is set in Street lamps control end and each street lamp,
Cost is very expensive, while high frequency carrier is loaded on power network to be polluted to power network, makes power network unstable, causes signal to pass
It is defeated unstable.In addition other street light modulating systems, such as, using wireless way for transmitting dim signal, although without another
Outer arrangement circuit, but need that wireless transceiver is installed on each street lamp, and Street lamps control is realized using complicated algorithm, in reality
In the application of border, wireless Zigbee protocol is necessarily applied on Street lamps control.
In addition, conventional AC light modulation generally controls LED brightness, namely one week of light modulation using regulation light modulation phase angle
The angle of flow (ON time) of alternating current in phase, this dimming mode is substantially to realize that exchange is adjusted to reduce LED operating power
Light, because the power that the angle of flow is exported also serves as the operating voltage of LED, when the angle of flow is very small, its power output simultaneously
When being not enough to maintain LED normal work, scintillation occurs in LED, therefore, when this dimming mode is not suitable for small-power
Light modulation.
Therefore, for drawbacks described above present in currently available technology, it is necessary to be studied in fact, to provide a kind of scheme,
Solve defect present in prior art.
The content of the invention
In view of this, can it is necessory to provide a kind of street lamp central controller of direct utilization power line transmission signals
Dimming control signal directly is sent to street lamp using power line, is carried without increasing control circuit or high frequency being loaded in power line
Ripple, so as to preferably meet the demand of actual Street lamps control application scenario.
In order to overcome the shortcomings of the prior art, the present invention provides following technical scheme：
A kind of street lamp central controller of direct utilization power line transmission signals, the street lamp central controller passes through power line
And multiple street lamps are connect, the street lamp central controller directly sends dimming control signal by power line to the street lamp；
The street lamp central controller includes the first power module, power line signal sending module, main control module, ammeter mould
Block, key-press module, display module and remote data communication module；
First power module is connected with power line, for providing power supply for the street lamp central controller；
The remote data communication module enters row data communication for remote monitoring center；
The power line signal sending module includes the first zero passage detection module, emission control module and Qie Bo modules, institute
Stating the first zero passage detection module is used to detect the zero point of ac signal and first zero triggering is produced when detecting the zero point
Signal；
The ripple module of cutting is serially connected in power line, for cutting the ac signal in power line；
The emission control module receives the first zero trigger signal and controlled according to coding rule set in advance
The ripple module of cutting is cut the ac signal in power line；
The power line signal sending module receives the dimming information that the main control module is sent, and by the dimming information
Dimming control signal is formed in the ac signal for being carried in power line a cycle；The dimming information includes brightness ratio
Value, the power line signal sending module makes the ac signal of signal period retain completely by cutting ripple module described in control
Positive half-wave or negative half-wave and the angle of flow that the brightness ratio value is converted into other half-cycle signal in the cycle forms the tune
Optical control signal.
Preferably, the street lamp includes second source module, power line signal receiving module, single-lamp controller, driving mould
Block and lamp source, wherein, the second source module is connected with power line, for for the power line signal receiving module and list
Lamp controller provides power supply；
The power line signal receiving module is used to receive on power line dimming control signal and compiled according to set in advance
The code rule demodulation dimming control signal obtains dimming information, and it further comprises the second zero passage detection module, receives control
Module and detection module, the second zero passage detection module are used to detect the zero point of ac signal and when detecting the zero point
Produce the second zero point trigger signal；
The detection module is used for the cutting tip for detecting ac signal in power line；
The receive and control module obtains alternating current in power line according to the second zero passage detection module and detection module
The angle of flow of signal is simultaneously converted to dimming information and is sent to the single-lamp controller；
The single-lamp controller controls the output of the drive module to realize the lamp source according to the dimming information
Brilliance control.
Preferably, the dimming control signal includes the first dim signal and the second dim signal, the first light modulation letter
Number retain the positive half-wave of the ac signal of signal period and make its negative half-wave loading angle of flow；
Second dim signal retains the negative half-wave of the ac signal of signal period and makes the loading conducting of its positive half-wave
Angle.
Preferably, the dimming control signal also includes header signal and end signal, and the header signal is arranged on institute
The head of dimming control signal is stated, the transmission for identifying the dimming control signal starts；The end signal is arranged on institute
The afterbody of dimming control signal is stated, the transmission for identifying the dimming control signal terminates；The header signal and end are believed
Number it is that digitally encoded signal is formed by data signal ' 1 ' and ' 0 ', the data signal ' 1 ' is with ' 0 ' by controlling the Qie Bomo
Block to the positive half-wave of the ac signal of signal period or negative half-wave completely cut and formed.
Preferably, the data signal ' 1 ' is born to retain the positive half-wave of the ac signal of signal period and completely cutting
Half-wave and formed, the data signal ' 0 ' for retain signal period ac signal negative half-wave and completely cut positive half-wave
And formed.
Preferably, the data signal ' 0 ' is born to retain the positive half-wave of the ac signal of signal period and completely cutting
Half-wave and formed, the data signal ' 1 ' for retain signal period ac signal negative half-wave and completely cut positive half-wave
And formed.
Preferably, in the header signal and end signal, the number of the data signal ' 1 ' and data signal ' 0 ' is put down
Weighing apparatus.
Preferably, the ripple module of cutting is metal-oxide-semiconductor or controllable silicon.
Preferably, the detection module is realized by comparator.
Preferably, the first zero passage detection module and the second zero passage detection module are realized by photoelectrical coupler.
Preferably, the emission control module and the receive and control module are single-chip microcomputer.
Compared with prior art, technical scheme, is realized using simple circuit structure and directly utilizes electric power
Line transmits dimming control signal to street lamp, greatly reduces the cost of street light modulating system；Meanwhile, at least only need to a cycle
Power line AC signal just can realize the transmission of dimming control signal, any interference hardly is produced to power network, greatly
It ensure that the stabilization of power grids；Further, dimming control signal is led only with the half-wave in signal period ac signal to modulate
Current flow angle, at least retains half-wave complete in signal period ac signal as energy supply, therefore, even if the angle of flow is very small
When, street light modulating process is also not in scintillation.
Brief description of the drawings
Fig. 1 is a kind of system architecture diagram of the street lamp central controller of direct utilization power line transmission signals of the present invention.
Fig. 2 is a kind of theory diagram of the street lamp central controller of direct utilization power line transmission signals of the present invention.
Fig. 3 sends for power line signal in a kind of street lamp central controller of direct utilization power line transmission signals of the present invention
The theory diagram of module.
Fig. 4 is the oscillogram of signal period dimming control signal.
Fig. 5 is to realize to utilize power line with a kind of street lamp central controller of direct utilization power line transmission signals of the present invention
Transmit the theory diagram of the street lamp of information.
Fig. 6 is the theory diagram of power line signal receiving module in street lamp of the present invention.
Fig. 7 is the signal frame format of dimming control signal of the present invention.
Fig. 8 is data signal ' 1 ' in the present invention and a kind of ' 0 ' signal waveform.
Fig. 9 is data signal ' 1 ' in the present invention and ' 0 ' another signal waveform.
Figure 10 is the theory diagram of ammeter module in the present invention.
Figure 11 is the circuit theory diagrams of voltage acquisition module in ammeter module of the present invention.
Figure 12 is the circuit theory diagrams of voltage acquisition module in ammeter module of the present invention.
Figure 13 is the another embodiment of street lamp central controller in the present invention.
Figure 14 is the another embodiment of street lamp in the present invention.
The data signal ' 1 ' and ' 0 ' that Figure 15 is formed when sending information to street lamp central controller for street lamp in the present invention
Waveform.
Figure 16 for the present invention in data transmission format from street lamp to street lamp central controller.
Specific examples below will further illustrate the present invention with reference to above-mentioned accompanying drawing.
Embodiment
Below with reference to accompanying drawing, the invention will be further described.
In order to overcome the defect of prior art, the present invention proposes a kind of simple framework, realization convenience and function admirable
Directly utilize the street lamp central controller of power line transmission signals.Referring to Fig. 1, it show the present invention and directly utilizes power line transmission
The Organization Chart of the street lamp central controller of signal, including the street lamp central controller that is serially connected in power line and it is attempted by the electricity
Multiple street lamps in the line of force, power supply is provided by power line for multiple street lamps, while street lamp central controller can directly pass through
Power line sends dimming control signal to the street lamp, so as to only just realize that power supply is powered and signal transmission, nothing by power line
Framework signal transmission network again is needed, without loading high-frequency carrier signal in power line.
Referring to Fig. 2, street lamp in a kind of street lamp central controller of direct utilization power line transmission signals of the present invention is shown
The theory diagram of Centralized Controller, street lamp central controller further comprise the first power module, power line signal sending module,
Main control module, ammeter module, key-press module, display module and remote data communication module；
First power module is connected with power line, for providing power supply for street lamp central controller；
Remote data communication module enters row data communication for remote monitoring center；Remote monitoring center is that whole street lamp is adjusted
The control centre of photosystem, has been responsible for whole street light modulating system, with information storage, management, inquiry and control electric power
Gauze network and the function that remote access is provided by Internet.Remote data communication module is equivalent to street lamp central controller
One access point of interior access outer remote Surveillance center, the data message of street lamp central controller is sent in remote monitoring
The heart, while also receiving the control command of remote monitoring center, and then realizes the brightness adjustment control of road lamp system.
Key-press module is used to input configuration information and control information；Display module is used to show current street lamp central controller
And its and the working condition of street lamp that connects；Ammeter module is used to gather electrical network parameter information.
Main control module be street lamp central controller control centre, with the first power module, power line signal sending module,
Ammeter module, key-press module, display module are connected with remote data communication module, and control the normal work of each functional module
Make；
It is power line letter in a kind of street lamp central controller of direct utilization power line transmission signals of the present invention referring to Fig. 3
The theory diagram of number sending module, including the first zero passage detection module, emission control module and Qie Bo modules, certain emission control
Module can be combined into a control chip with main control module, can also be realized by two independent control chips.
First zero passage detection module is used to detect the zero point of ac signal and the generation the 1st when detecting the zero point
Point trigger signal；
Cut ripple module to be serially connected in power line, for cutting the ac signal in power line；In one kind side of being preferable to carry out
In formula, cut ripple module for metal-oxide-semiconductor or controllable silicon, by emission control module control metal-oxide-semiconductor or controllable silicon conducting or
Disconnect and cut ripple so as to realize.
Emission control module receives first zero trigger signal and cuts ripple module according to coding rule set in advance control
Ac signal in power line is cut；
The control command that main control module is sent according to the input information or remote monitoring center of key-press module is to power line
The dimming information that signal transmitting module is sent, general dimming information is usually brightness ratio value, such as concentrates a certain street lamp and control
The brightness regulation of street lamp under device processed is 50%.
According to dimming information is received, emission control module cuts ripple module by control, makes the exchange telecommunications of signal period
Number conducting for retaining complete positive half-wave or negative half-wave and brightness ratio value being converted into other half-cycle signal in the cycle is angular
Into dimming control signal, as shown in figure 4, signal period dimming control signal is shown respectively retains complete positive half-wave and reservation respectively
The signal waveform of complete negative half-wave, wherein, it is the angle of flow to erect dotted line, and horizontal dotted line is the wave band through cutting the excision of ripple module.
Using above-mentioned technical proposal, it is only necessary to the ac signal of a cycle, it is possible to which dimming information is carried in into electric power
Dimming control signal is formed in line ac signal；Meanwhile, at least retain half-wave complete in signal period ac signal and make
For energy supply, therefore, even if the angle of flow very hour, street light modulating process is also not in scintillation.
Referring to Fig. 5, realization and a kind of street lamp central controller of direct utilization power line transmission signals of the present invention are shown
The theory diagram of the street lamp carried out data transmission, street lamp includes second source module, power line signal receiving module, single lamp control
Device, drive module and lamp source, wherein, second source module is connected with power line, for for power line signal receiving module and
Single-lamp controller provides power supply；Power line signal receiving module is used to receiving on power line dimming control signal and according to setting in advance
Fixed coding rule demodulation dimming control signal obtains dimming information.
Referring to Fig. 6, the theory diagram of power line signal receiving module in the street lamp that the present invention is used is shown, further bag
Single lamp control can be integrated in by including the second zero passage detection module, receive and control module and detection module, certainly, receive and control module
Device, can also be set with single-lamp controller split.
Second zero passage detection module is used to detect the zero point of ac signal and the generation the 2nd 0 when detecting the zero point
Point trigger signal；
Detection module is used for the cutting tip for detecting ac signal in power line, in a preferred embodiment,
Detection module realized by comparator, and the reference voltage of comparator is set into no-voltage, it is resected after ac signal be also
No-voltage, it is equal with reference voltage, low level is exported, high level is otherwise exported.
Receive and control module obtains leading for ac signal in power line according to the second zero passage detection module and detection module
Current flow angle, triggers timing signal, by measuring the low level time, so as to calculate conducting during each zero point of receive and control module
Angle, and be converted to dimming information and be sent to single-lamp controller；Single-lamp controller controls drive module according to the dimming information
Output is so as to realize the brilliance control of lamp source.
In a preferred embodiment, referring to Fig. 7, the signal frame format of dimming control signal, brightness adjustment control are shown
Signal includes header signal, end signal, the first dim signal and the second dim signal, the first dim signal and the second light modulation letter
Number load that dimming information is identical, but the first dim signal retains the positive half-wave of the ac signal of signal period and makes it
The negative half-wave loading angle of flow, and the second dim signal retains the negative half-wave of the ac signal of signal period and adds its positive half-wave
The angle of flow is carried, because the angle of flow of the first dim signal and the second dim signal is respectively at positive half-wave and negative half-wave, so that
Power network tends to balance, and is prevented effectively from data transmission procedure and produces harmonic wave interference.
Header signal is arranged on the head of dimming control signal, and the transmission for identifying dimming control signal starts；Terminate
Signal is arranged on the afterbody of dimming control signal, and the transmission for identifying dimming control signal terminates；Header signal and end are believed
Number to form digitally encoded signal by data signal ' 1 ' and ' 0 ', in order that power network is more balanced, in a kind of preferred embodiment
In, in header signal and end signal, the number of data signal ' 1 ' and data signal ' 0 ' is balanced.Such as header signal is
' 10101010 ', and end signal is ' 11001100 ', the number of data signal ' 1 ' and data signal ' 0 ' is of substantially equal, effectively
Avoid producing harmonic wave interference in data transmission procedure.
Data signal ' 1 ' and ' 0 ' cuts ripple module to the positive half-wave of the ac signal of signal period or negative half by control
Ripple completely cut and formed.It is shown in Figure 8, it is data signal ' 1 ' and a kind of ' 0 ' signal waveform, data signal ' 1 '
Positive half-wave for the ac signal that retains signal period simultaneously completely cuts negative half-wave and formed, and data signal ' 0 ' is retains list
The negative half-wave of the ac signal in individual cycle simultaneously completely cuts positive half-wave and formed.
It is shown in Figure 9, it is data signal ' 1 ' and ' 0 ' another signal waveform, data signal ' 0 ' is single to retain
The positive half-wave of the ac signal in cycle simultaneously completely cuts negative half-wave and formed, and data signal ' 1 ' is to retain the friendship of signal period
Flow the negative half-wave of electric signal and completely cut positive half-wave and formed.
In a preferred embodiment, the first zero passage detection module and the second zero passage detection module are by photoelectrical coupler
Realize.
In a preferred embodiment, emission control module and receive and control module are single-chip microcomputer.
Referring to Figure 10, the theory diagram of ammeter module is shown, ammeter module includes an at least voltage acquisition module, at least
One current acquisition module and electric energy metering module, wherein,
The voltage acquisition module is connected with power line, for gathering the voltage signal in power line；
The current acquisition module is connected with power line, for gathering the current signal in power line；
The electric energy metering module is controlled with the main control module, and with the voltage acquisition module and the current acquisition
Module is connected, for measuring electrical network parameter according to the voltage acquisition module and the current acquisition module.
Referring to Figure 11, the circuit theory diagrams of voltage acquisition module in ammeter module of the present invention, including first resistor are shown
R1, second resistance R2,3rd resistor R3, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, the first electric capacity C1 and voltage are mutual
Sensor, wherein, first resistor R1 one end is connected with the live wire of power line, first resistor the R1 other end and second resistance R2
One end be connected, the second resistance R2 other end is connected with 1 end of voltage transformer input, voltage transformer input
2 ends be connected with the 6th resistance R6 one end, the 6th resistance R6 other end is connected with the 5th resistance R5 one end, the 5th
The resistance R5 other end is connected with the 4th resistance R4 one end, and the 4th resistance R4 other end is connected with the zero line of power line
Connect；1 end of voltage transformer output end is connected with one end of 3rd resistor R3 one end and the first electric capacity C1, and jointly with electricity
Energy metering module is connected；2 ends of voltage transformer output end and the 3rd resistor R3 other end and the first electric capacity C1's is another
End is connected, and is connected to the ground jointly.
In a preferred embodiment, the present invention uses turn ratio for 1:1 voltage transformer, concrete model is
SPT204V, it is the low-voltage for being converted into high voltage according to a certain percentage to use for metering or instrument that it, which is acted on, is passed through simultaneously
Voltage transformer is by the isolation of high voltage and electrical equipment, it is ensured that the safety of staff.The volume of the voltage transformer of the model
Input current is determined for 2mA, output-current rating is 2mA, nonlinearity is less than 0.1%, and the range of linearity is 0~10mA, specified defeated
Enter maximum load for 500 Ω, its precision is less than 1%, after overcompensation, phase shift is less than 5 ', it is 2500V, work temperature to isolate pressure-resistant
Spend -50 DEG C~+65 DEG C of scope.
The input current of voltage transformer is by first resistor R1, second resistance R2, the 4th resistance R4, the 5th resistance R5 and
Six resistance R6 resistance is determined.
Due to all there is the defect of aliasing effect in sample circuit, to prevent distorted signals to must be introduced into anti-aliasing filter
Device, general to be filtered using low pass filter, in the present invention, 3rd resistor R3 and the first electric capacity C1 constitute a RC filtering
Device.In order that sample frequency obtains sufficiently large decay in 1.024MHZ, the RC wave filters that corner frequency is 5kHZ have been used,
Wherein 3rd resistor R3 resistance is that 1k Ω, the first electric capacity C1 capacitance are 2.2nf.
Referring to Figure 12, the circuit theory diagrams of current acquisition module in ammeter module of the present invention, including Current Mutual Inductance are shown
Device, the 7th resistance R7, the 8th resistance R8, the 9th resistance R9, the tenth resistance R10, the second electric capacity C2 and the 3rd electric capacity C3, wherein,
The input of the current transformer is serially connected with power line, 2 ends of the output end of the current transformer and the 7th resistance
R7 one end is connected with one end of the 8th resistance R8, and the other end of the 7th resistance R7 is with the second electric capacity C2's
One end is connected, and is connected jointly with the electric energy metering module；1 end of the output end of the current transformer and described the
Nine resistance R9 one end is connected with one end of the tenth resistance R10, the other end and the described 9th of the 8th resistance R8
The resistance R9 other end, the other end of the second electric capacity C2 are connected with one end of the 3rd electric capacity C3, and jointly with ground
It is connected；The other end of the tenth resistance R10 is connected with the other end of the 3rd electric capacity C3, and jointly with the electric energy
Metering module is connected.
In a preferred embodiment, the present invention uses the model SCT254A of current transformer, current transformer
Effect is that larger primary current is converted into relatively low secondary current according to a certain percentage to use for measurement and instrument.Electric current is adopted
It is 1 that sample circuit, which uses turn ratio,:2000 current transformer, specified input current is 5A, and output-current rating is
2.5mA, nonlinearity is less than 0.1%, and the range of linearity is 0~20A, and specified input maximum load is 800 Ω, after overcompensation,
Phase shift is less than 5 ', isolates pressure-resistant more than 3500V, -50 DEG C~+65 DEG C of operating temperature range.
7th resistance R7 and the second electric capacity C2, the tenth resistance R10 and the 3rd electric capacity C3 constitute frequency overlapped-resistable filter, i.e. low pass
Wave filter, wherein, the 7th resistance R7 and the tenth resistance R10 resistance are 1k Ω, the second electric capacity C2 and the 3rd electric capacity C3 electric capacity
It is worth for 2.2nf.
In a preferred embodiment, electric energy metering module uses the electric energy chip ADE7880 of ADI companies of the U.S., should
Chip is a high accuracy of ADI companies of U.S. production, three-phase electric energy metering IC, is 25 DEG C, dynamic range 2000 in temperature:1
When interior, effective value error, active power and First Harmonic Reactive Power error are respectively less than 0.1%, and reference voltage is 1.2V,
And cross drive function with outside.ADE7880 has an I2C and SPI dual serial interfaces, I2C and with HSDC Interference fits use with
Access the registers such as instantaneous voltage, electric current and instantaneous power.ADE7880 has three road voltage channels and four road current channels to calculate phase
Voltage, current effective value and the instantaneous value of voltage and phase current, frequency, total active power, First Harmonic Reactive Power, apparent energy,
Harmonic distortion rate and total active energy, fundamental wave reactive power electric energy, apparent electric energy etc..In addition ADE788 provides three tunnel logic outputs,
Various power informations are provided.
Above-mentioned technical proposal only by power line can be achieved with street lamp central controller to itself and each street lamp for connecing
Signal is transmitted, but it can not realize the transmission signal from street lamp end to street lamp central controller, and in practice, street lamp end is also needed
Will to street lamp central controller feedback information, such as electrical energy parameter information, work state information, fault message etc., so as to
Be conducive to street lamp integrated management and trouble hunting.In order to solve the above-mentioned technical problem, present invention further propose that a kind of preferred reality
Apply mode.
Referring to Figure 13, the another embodiment of street lamp central controller in the present invention, in addition to ring current are shown
Zero line or live wire set in transformer and current detection module, power line are through ring current transformer, so that the annular electro
Current transformer can sense the electric current in power line in the way of non-electrical is contacted and produce induced-current；Current detection module
For being amplified to induced-current and signal transacting is so as to detect current value in power line, and the current value is sent to master
Control module.
Referring to Figure 14, the another embodiment of street lamp in the present invention is shown, in addition to is serially connected in power line and driving
Switch module between module, the switch module is controlled by single-lamp controller, when switch module is off, and drives mould
The input of block, which is powered, to be cut off so as to which without constant current signal output, lamp source is in OFF state；When switch module is in the conduction state
When, drive module is directly powered by power line, and is adjusted according to the control signal of single-lamp controller at constant current signal output, lamp source
In illuminating state.
Realize that the principle that signal is transmitted in street lamp end to street lamp central controller is that the signal to be transmitted street lamp is changed
It is switched on or off, and by controlling being switched on or off for switch module in street lamp, can makes for switch module in street lamp
Current signal in power line changes, namely the street lamp signal to be transmitted is loaded with the current signal in power line
In change；Street lamp central controller is by detecting the change of the current signal in power line so as to obtain the street lamp letter to be transmitted
Number.
Specifically, such as one street lamp central controller is mounted with 50 street lamps, it is assumed that the work(of each street lamp normal work
Rate is 100w, then during normal work, and bus efficiency is 5000w, because bus voltage is alternating current 220V, therefore bus current is also
AC signal, and be directly proportional with street lamp general power.When closing a street lamp, namely only 49 street lamp normal works, then always
Linear heat generation rate is changed into 4900w, and the change of bus efficiency will cause the change of bus current signal amplitude, above-mentioned one street lamp of closing
In the case of, the amplitude of bus current signal will diminish.Therefore, using above-mentioned principle street lamp can be realized to street lamp centralized Control
Device transmits signal.
In street lamp, single-lamp controller makes the exchange powered to drive module by the conducting and disconnection of controlling switch module
Voltage signal forms different waveforms in signal period, so that for reference numbers signal ' 1 ' and ' 0 '.Such as, can be to list
The positive half-wave of the drive module Alternating Current Power Supply signal in individual cycle or negative half-wave completely cut and formed.It may refer to Figure 15 institutes
Show, street lamp produces data signal ' 1 ' and a kind of ' 0 ' waveform voltage signal by controlling switch module, wherein, Figure 15-A are number
The signal waveform of word signal ' 1 ', it bears to retain the positive half-wave of signal period drive module Alternating Current Power Supply signal and completely cutting
Half-wave and formed；Figure 15-B are the signal waveform of data signal ' 0 ', and it is reservation signal period drive module Alternating Current Power Supply signal
Negative half-wave and completely cutting positive half-wave and formed.Figure 15-C are the corresponding bus current waveforms of Figure 15-A, and wherein dotted line is
Waveform when drive module Alternating Current Power Supply signal is not cut, data signal ' 1 ' is represented with the change of this current waveform；Figure
15-D is the corresponding bus current waveforms of Figure 15-B, and wherein dotted line is when drive module Alternating Current Power Supply signal is not cut
Waveform, data signal ' 0 ' is represented with the change of this current waveform, and thus, street lamp central controller is by detecting bus current
Change obtains data signal ' 1 ' and ' 0 '.
Of course for valid data communication is realized, street lamp sends signal to street lamp central controller and is also required to observe necessarily
Data protocol, shown in Figure 16, street lamp sends signal and further comprises header signal, street lamp identification number, data message and knot
Beam signal, header signal, street lamp identification number, data message and end signal are believed by the numeral of data signal ' 1 ' and ' 0 ' composition
Number；Header signal and end signal are used for beginning and end that mark data is transmitted, and street lamp identification number is that each street lamp is uniquely true
Fixed identification number, is sended over for identifying the data message by which street lamp；Data message is the data to be sent
Content, predominantly electrical energy parameter information, work state information, fault message etc..
The explanation of above example is only intended to the method and its core concept for helping to understand the present invention.It should be pointed out that pair
, under the premise without departing from the principles of the invention, can also be to present invention progress for those skilled in the art
Some improvement and modification, these are improved and modification is also fallen into the protection domain of the claims in the present invention.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (8)
1. a kind of street lamp central controller of direct utilization power line transmission signals, it is characterised in that the street lamp central controller
By power line and multiple street lamps are connect, the street lamp central controller directly sends brightness adjustment control by power line to the street lamp
Signal；
The street lamp central controller include the first power module, power line signal sending module, main control module, ammeter module,
Key-press module, display module and remote data communication module；
First power module is connected with power line, for providing power supply for the street lamp central controller；
The remote data communication module enters row data communication for remote monitoring center；
The power line signal sending module includes the first zero passage detection module, emission control module and Qie Bo modules, described the
One zero passage detection module is used to detect the zero point of ac signal and first zero trigger signal is produced when detecting the zero point；
The ripple module of cutting is serially connected in power line, for cutting the ac signal in power line；
The emission control module receives the first zero trigger signal and according to coding rule set in advance control
Ripple module is cut to cut the ac signal in power line；
The power line signal sending module receives the dimming information that the main control module is sent, and the dimming information is loaded
Dimming control signal is formed in the ac signal of power line a cycle；The dimming information includes brightness ratio value, institute
State power line signal sending module makes the ac signal of signal period retain complete just half by cutting ripple module described in control
Ripple or negative half-wave and the angle of flow that the brightness ratio value is converted into other half-cycle signal in the cycle form the light modulation control
Signal processed；
The dimming control signal includes the first dim signal and the second dim signal, and first dim signal retains single week
The positive half-wave of the ac signal of phase simultaneously makes its negative half-wave loading angle of flow；
Second dim signal retains the negative half-wave of the ac signal of signal period and its positive half-wave is loaded the angle of flow；
The dimming control signal also includes header signal and end signal, and the header signal is arranged on the brightness adjustment control letter
Number head, the transmission for identifying the dimming control signal starts；The end signal is arranged on the brightness adjustment control letter
Number afterbody, the transmission for identifying the dimming control signal terminates；The header signal and end signal are by numeral letter
Number ' 1 ' and ' 0 ' forms digitally encoded signal, and the data signal ' 1 ' and ' 0 ' described in control by cutting ripple module to signal period
Ac signal positive half-wave or negative half-wave carry out completely cut and formed；
The street lamp central controller also includes the zero line or fire in ring current transformer and current detection module, power line
Line set is through in ring current transformer, and the ring current transformer is used to sense power line in the way of non-electrical is contacted
In electric current and produce induced-current；The current detection module is used to be amplified induced-current and signal transacting is so as to examine
The current value surveyed in power line, and the current value is sent to main control module；
When street lamp end is to street lamp central controller transmission signal, the signal to be transmitted is converted to switch module in street lamp by street lamp
Be switched on or off, and then the current signal in power line can be made to change；Street lamp central controller is by detecting electricity
The change of current signal in the line of force is so as to obtain the street lamp signal to be transmitted.
2. the street lamp central controller of direct utilization power line transmission signals according to claim 1, it is characterised in that institute
Stating street lamp includes second source module, power line signal receiving module, single-lamp controller, drive module and lamp source, wherein, it is described
Second source module is connected with power line, for being that the power line signal receiving module and single-lamp controller provide power supply；
The power line signal receiving module is used to receive on power line dimming control signal and advised according to coding set in advance
Then demodulate the dimming control signal and obtain dimming information, it further comprises the second zero passage detection module, receive and control module
And detection module, the second zero passage detection module is for detecting the zero point of ac signal and being produced when detecting the zero point
Second zero point trigger signal；
The detection module is used for the cutting tip for detecting ac signal in power line；
The receive and control module obtains ac signal in power line according to the second zero passage detection module and detection module
The angle of flow and be converted to dimming information and be sent to the single-lamp controller；
The single-lamp controller controls the output of the drive module to realize the brightness of the lamp source according to the dimming information
Control.
3. the street lamp central controller of direct utilization power line transmission signals according to claim 1, it is characterised in that institute
The negative half-wave of the positive half-wave for the ac signal for stating data signal ' 1 ' to retain signal period and completely cutting is formed, the number
Word signal ' 0 ' is formed to retain the negative half-wave of the ac signal of signal period and completely cutting positive half-wave.
4. the street lamp central controller of direct utilization power line transmission signals according to claim 1, it is characterised in that institute
The negative half-wave of the positive half-wave for the ac signal for stating data signal ' 0 ' to retain signal period and completely cutting is formed, the number
Word signal ' 1 ' is formed to retain the negative half-wave of the ac signal of signal period and completely cutting positive half-wave.
5. the street lamp central controller of direct utilization power line transmission signals according to claim 1, it is characterised in that institute
State in header signal and end signal, the number of the data signal ' 1 ' and data signal ' 0 ' is balanced.
6. the street lamp central controller of direct utilization power line transmission signals according to claim 1, it is characterised in that institute
State and cut ripple module for metal-oxide-semiconductor or controllable silicon.
7. the street lamp central controller of direct utilization power line transmission signals according to claim 2, it is characterised in that institute
Detection module is stated to be realized by comparator.
8. the street lamp central controller of direct utilization power line transmission signals according to claim 2, it is characterised in that institute
State the first zero passage detection module and the second zero passage detection module is realized by photoelectrical coupler；The emission control module and institute
Receive and control module is stated for single-chip microcomputer.
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| CN109831858B (en) * | 2019-03-08 | 2020-02-11 | 派诺西智能科技(苏州)有限公司 | Intelligent lighting system |
| CN110087370B (en) * | 2019-04-30 | 2021-05-04 | 领佳科技发展有限公司 | Phase-cut dimming equipment combination circuit adopting voltage coding to transmit control command |
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|---|---|---|---|---|
| CN101969713A (en) * | 2010-08-11 | 2011-02-09 | 天津工业大学 | LED street lamp control system based on electric power carrier communication technology |
| EP2765828A1 (en) * | 2013-02-07 | 2014-08-13 | Hep Tech Co. Ltd. | Dimmable LED illuminating system |
| CN104684205A (en) * | 2013-11-29 | 2015-06-03 | 小泉照明株式会社 | Lighting apparatus and electrical power line-communicating system for transmitting signal thereto |
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| KR101020499B1 (en) * | 2009-04-13 | 2011-03-09 | 벽산엔지니어링주식회사 | System for Illuminating Road |
| CN203181288U (en) * | 2013-01-31 | 2013-09-04 | 群胜系统科技股份有限公司 | Power dimming control system and control device thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101969713A (en) * | 2010-08-11 | 2011-02-09 | 天津工业大学 | LED street lamp control system based on electric power carrier communication technology |
| EP2765828A1 (en) * | 2013-02-07 | 2014-08-13 | Hep Tech Co. Ltd. | Dimmable LED illuminating system |
| CN104684205A (en) * | 2013-11-29 | 2015-06-03 | 小泉照明株式会社 | Lighting apparatus and electrical power line-communicating system for transmitting signal thereto |
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Application publication date: 20160615 Assignee: ZHEJIANG JINKONG ELECTRIC CO., LTD. Assignor: Hangzhou Electronic Science and Technology Univ Contract record no.: 2018330000071 Denomination of invention: Street lamp centralized controller capable of transmitting signals by power lines directly Granted publication date: 20171031 License type: Common License Record date: 20180613 |