CN105744673B - A kind of street lamp for directly utilizing power line reception signal - Google Patents
A kind of street lamp for directly utilizing power line reception signal Download PDFInfo
- Publication number
- CN105744673B CN105744673B CN201610107344.1A CN201610107344A CN105744673B CN 105744673 B CN105744673 B CN 105744673B CN 201610107344 A CN201610107344 A CN 201610107344A CN 105744673 B CN105744673 B CN 105744673B
- Authority
- CN
- China
- Prior art keywords
- signal
- module
- power line
- street lamp
- wave
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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]
Abstract
The invention discloses a kind of street lamp for directly utilizing power line reception signal, the street lamp is connected by power line with street lamp central controller, and the street lamp directly can receive the dimming control signal transmitted by the street lamp central controller by power line；Street lamp includes second source module, power line signal receiving module, single-lamp controller, drive module and lamp source, and power line signal receiving module further comprises the second zero passage detection module, receive and control module and detection module.Using technical scheme, realize that street lamp directly receives dimming control signal using power line by a kind of simple circuit structure；Simultaneously, it is only necessary to which the power line AC signal of a cycle can greatly ensure that the stabilization of power grids to realize the transmission of dimming control signal；Further, dimming control signal at least retains in signal period ac signal that complete half-wave is as energy supply, even if the angle of flow very hour, dimming process is also not in scintillation.
Description
Technical field
The invention belongs to Street lamps control field, more particularly to a kind of street lamp for directly utilizing power line reception signal.
Background technology
With the rapid development of LED technology, intelligent dimming is widely used, and is especially adjusted in field of street lamp lighting, street lamp
Photocontrol can reasonable distribution road lighting, save the 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；Therefore, it is necessary to set power line carrier circuit in Street lamps control end and each street lamp,
Cost is very expensive, while loading high frequency carrier can pollute to power network on power network, make power network unstable, cause 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 use regulation dims phase angle to control LED brightness, namely one week of light modulation
The angle of flow (ON time) of alternating current in phase, this dimming mode are substantially to realize that exchange is adjusted to reduce LED operating power
Light, because the power of angle of flow output 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,
Solves defect present in prior art.
The content of the invention
In view of this, it is necessory to provide a kind of street lamp for directly utilizing power line reception signal, electricity can directly be utilized
The line of force realizes street light modulating, real so as to preferably meet without increasing control circuit or high frequency carrier being loaded in power line
The demand of border 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 for directly utilizing power line reception signal, the street lamp are connected by power line with street lamp central controller
Connect, the street lamp directly can receive the dimming control signal transmitted by the street lamp central controller by power line；
The dimming control signal is formed for dimming information is carried in power line in the ac signal of a cycle,
The dimming information includes brightness ratio value, by making the ac signal of signal period retain complete positive half-wave or negative half-wave
And the brightness ratio value is converted into the angle of flow of other half-cycle signal in the cycle and forms the dimming control signal；
The street lamp includes second source module, power line signal receiving module, single-lamp controller, drive module and lamp
Source, wherein, the second source module is connected with power line, for for the power line signal receiving module and single lamp control
Device provides power supply；
The power line signal receiving module is used to receive on power line dimming control signal and according to volume set in advance
Code rule demodulates the dimming control signal and 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 angle of flow 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 so as to realize the lamp source according to the dimming information
Brilliance control.
Preferably, the street lamp central controller includes the first power module, power line signal sending module, master control mould
Block, meter 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, institute
The first zero passage detection module is stated to be used to detect the zero point of ac signal and produce first zero triggering 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
It is carried in the ac signal of power line a cycle and forms dimming control signal；The dimming information includes brightness ratio
Value, it is complete that the power line signal sending module retains the ac signal of signal period by cutting ripple module described in control
The brightness ratio value is simultaneously converted into the angle of flow of other half-cycle signal in the cycle and forms the tune by positive half-wave or negative half-wave
Optical control signal.
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 is completely cut the positive half-wave of the ac signal of signal period or negative half-wave 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, realized using simple circuit structure and directly utilize electric power
Line transmits street light modulating control signal, greatly reduces the cost of street light modulating system；Meanwhile at least only need a cycle
Power line AC signal can hardly produce any interference, greatly protect to realize the transmission of dimming control signal to power network
The stabilization of power grids is demonstrate,proved；Further, dimming control signal modulates conducting only with the half-wave in signal period ac signal
Complete half-wave is as energy supply in angle, at least reservation signal period ac signal, 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 be the present invention it is a kind of directly utilize power line reception signal street lamp system architecture diagram.
Fig. 2 is the theory diagram for sending the street lamp central controller of signal to street lamp of the present invention.
Fig. 3 is the theory diagram of power line signal sending module in street lamp central controller.
Fig. 4 is the oscillogram of signal period dimming control signal.
Fig. 5 be the present invention it is a kind of directly utilize power line reception signal street lamp theory diagram.
Fig. 6, which is that the present invention is a kind of, directly utilizes the principle of power line signal receiving module in the street lamp of power line reception signal
Block diagram.
Fig. 7 is the signal frame format of dimming control signal of the present invention.
Fig. 8 is data signal ' 1 ' and a kind of ' 0 ' signal waveform in the present invention.
Fig. 9 is data signal ' 1 ' and ' 0 ' another signal waveform in the present invention.
Figure 10 is the theory diagram of meter module in the present invention.
Figure 11 is the circuit theory diagrams of voltage acquisition module in meter module of the present invention.
Figure 12 is the circuit theory diagrams of voltage acquisition module in meter 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.
Data transmission formats of the Figure 16 for street lamp in the present invention to street lamp central controller.
Specific examples below will combine above-mentioned accompanying drawing and further illustrate the present invention.
Embodiment
Below with reference to accompanying drawing, the invention will be further described.
The defects of in order to overcome prior art, the present invention propose a kind of simple framework, realization convenience and function admirable
Directly utilize the street lamp of power line reception signal.Referring to Fig. 1, the street lamp of the invention for directly utilizing power line reception signal is shown
System architecture diagram, including the street lamp central controller being serially connected in power line and the multiple roads being attempted by the power line
Lamp, power supply is provided for multiple street lamps by power line, while street lamp central controller can be directly by power line to the road
Lamp sends dimming control signal, so as to only just realize power supply power supply and signal transmission by power line, without framework signal again
Transmission network, without loading high-frequency carrier signal in power line.
Referring to Fig. 2, the theory diagram for the street lamp central controller that signal is sent to street lamp of the present invention is shown, street lamp is concentrated
Controller further comprises the first power module, power line signal sending module, main control module, meter module, key-press module, aobvious
Show 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, whole street light modulating system is responsible for, there is 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 the control command of remote monitoring center is also received, and then realize 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 working condition of street lamp that connects；Meter 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,
Meter module, key-press module, display module are connected with remote data communication module, and control the normal work of each functional module
Make；
Referring to Fig. 3, for the theory diagram of power line signal sending module in street lamp central controller of the present invention, including first
Zero passage detection module, emission control module and Qie Bo modules, certain emission control module can be combined into a control with main control module
Coremaking piece, it 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, it is metal-oxide-semiconductor or controllable silicon to cut ripple module, by emission control module control metal-oxide-semiconductor either the conducting of controllable silicon 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；
Main control module is according to the control command that the input information or remote monitoring center of key-press module are sent to power line
The dimming information that signal transmitting module is sent, general dimming information is usually brightness ratio value, for example a certain street lamp is concentrated and controlled
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 retain complete positive half-wave or negative half-wave and brightness ratio value is converted into other half-cycle signal in the cycle conducting it 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, perpendicular dotted line is the angle of flow, 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 complete half-wave 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, a kind of theory diagram of the direct street lamp using power line reception signal of the present invention, street lamp bag are shown
Second source module, power line signal receiving module, single-lamp controller, drive module and lamp source are included, wherein, second source module
It is connected with power line, for providing power supply for power line signal receiving module and single-lamp controller；Power line signal receives mould
Block is used to receive dimming control signal on power line and demodulates dimming control signal acquisition tune according to coding rule set in advance
Optical information.
Referring to Fig. 6, it show power line signal in a kind of direct street lamp using power line reception signal of the present invention and receives
The theory diagram of module, further comprise the second zero passage detection module, receive and control module and detection module, certainly, receive control
Molding block can be integrated in single-lamp controller, can also be with single-lamp controller split settings.
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 is realized by comparator, and the reference voltage of comparator is arranged into no-voltage, and the ac signal after cutting is also
No-voltage, it is equal with reference voltage, low level is exported, otherwise exports high level.
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, timing signal is triggered during each zero point of receive and control module, by measuring the low level time, so as to calculate conducting
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
Export 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 effectively avoids producing harmonic wave interference in data transmission procedure.
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 it is that digitally encoded signal formed by data signal ' 1 ' and ' 0 ', in order that power network more balances, in a kind of preferred embodiment
In, in header signal and end signal, the number of data signal ' 1 ' and data signal ' 0 ' balances.For example 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 is completely cut and formed.It is shown in Figure 8, for data signal ' 1 ' and a kind of ' 0 ' signal waveform, data signal ' 1 '
Formed to retain the positive half-wave of the ac signal of signal period and completely cutting negative half-wave, data signal ' 0 ' is single to retain
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 meter module is shown, meter 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 meter 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 as 1:1 voltage transformer, concrete model are
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
The isolation of high voltage and electrical equipment is ensured the safety of staff by voltage transformer.The volume of the voltage transformer of the model
It is 2mA to determine input current, and output-current rating 2mA, for nonlinearity less than 0.1%, the range of linearity is 0~10mA, specified defeated
It is 500 Ω to enter maximum load, and its precision is less than 1%, and after overcompensation, phase shift is less than 5 ', and it is 2500V that isolation is pressure-resistant, work temperature
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 determines.
Due to the defects of aliasing effect all be present in sample circuit, to prevent distorted signals to must be introduced into anti-aliasing filter
Device, typically it is 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 meter 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
Sample circuit is 1 using turn ratio:2000 current transformer, specified input current are 5A, and output-current rating is
2.5mA, nonlinearity are 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 ', and isolation is pressure-resistant to be 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 form 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 in temperature, dynamic range 2000:1
When interior, effective value error, active power and First Harmonic Reactive Power error are respectively less than 0.1%, reference voltage 1.2V,
And cross drive function with outside.ADE7880 has an I2C and SPI dual serial interfaces, I2C and with the use of HSDC Interference fits 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
The voltage of voltage and phase current, current effective value and instantaneous value, 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
Transmission signal, but it can not realize that street lamp end also needs from street lamp end to street lamp central controller transmission signal, and in practice
Will to street lamp central controller feedback information, such as electrical energy parameter information, work state information, fault message etc., so as to
Be advantageous to street lamp integrated management and trouble hunting.In order to solve the above-mentioned technical problem, it is present invention further propose that a kind of preferred real
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
Transformer and current detection module, zero line or live wire set in power line are through ring current transformer, so as to the annular electro
Current transformer can sense the electric current in power line in a manner of non-electrical contacts and produce induced-current；Current detection module
For being amplified to induced-current and signal transacting is so as to detect the 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 are controlled by single-lamp controller, when switch module is off, drive mould
The input power supply of block is cut off so as to be in OFF state without constant current signal output, lamp source；When switch module is in the conduction state
When, drive module is directly powered by power line, and is adjusted constant current signal according to the control signal of single-lamp controller and exported, at lamp source
In illuminating state.
Realize that street lamp end is to the principle of street lamp central controller transmission signal, the signal that street lamp to be transmitted is changed
It is switched on or off for switch module in street lamp, and by controlling being switched on or off for switch module in street lamp, it can make
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 obtains the street lamp letter to be transmitted by detecting the change of the current signal in power line
Number.
Specifically, such as a 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, bus efficiency 5000w, because bus voltage is alternating current 220V, therefore bus current is also
AC signal, and it is 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 transmission signal.
In street lamp, single-lamp controller makes the exchange to drive module power supply by the conducting and disconnection of controlling switch module
Voltage signal forms different waveforms in signal period, so as to be used for reference numbers signal ' 1 ' and ' 0 '.Such as can be to list
The positive half-wave or negative half-wave of the drive module Alternating Current Power Supply signal in individual cycle are completely cut and formed.It may refer to Figure 15 institutes
Showing, 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 cut 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, 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 the beginning and end of mark data transmission, and street lamp identification number is that each street lamp is uniquely true
Fixed identification number, for identifying the data message is sended over 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 help the method and its core concept for understanding the present invention.It should be pointed out that pair
For those skilled in the art, under the premise without departing from the principles of the invention, the present invention can also be carried out
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, professional and technical personnel in the field are enable 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 (7)
1. a kind of street lamp for directly utilizing power line reception signal, it is characterised in that the street lamp is concentrated by power line and street lamp
Controller is connected, and the street lamp directly can receive the brightness adjustment control transmitted by the street lamp central controller by power line
Signal；
The street lamp includes second source module, power line signal receiving module, single-lamp controller, drive module and lamp source, its
In, the second source module is connected with power line, for being carried for the power line signal receiving module and single-lamp controller
For power supply；
The power line signal receiving module is used to receive dimming control signal on power line 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 are used to detect the zero point of ac signal and produced when detecting the zero point
Second zero point trigger signal；
The detection module is used for the angle of flow 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 so as to realize the brightness of the lamp source according to the dimming information
Control；
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 street lamp central controller include the first power module, power line signal sending module, main control module, meter 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, and described
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 by the brightness ratio value be converted into other half-cycle signal in the cycle the angle of flow formed it is described light modulation control
Signal processed；
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 to be believed by numeral
Number ' 1 ' and ' 0 ' forms digitally encoded signal, and the data signal ' 1 ' and ' 0 ' is by cutting ripple module to signal period described in control
Ac signal positive half-wave or negative half-wave completely cut and formed；
Also including the switch module being serially connected between power line and drive module, the switch module is controlled by single-lamp controller, when
When switch module is off, the input power supply of drive module is cut off puts out so as to which without constant current signal output, lamp source is in
Go out state；When switch module is in the conduction state, drive module is directly powered by power line, and according to the control of single-lamp controller
Signal Regulation constant current signal output processed, lamp source are in illuminating state；
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 obtaining the street lamp signal to be transmitted.
2. the street lamp according to claim 1 for directly utilizing power line reception signal, it is characterised in that the data signal
' 1 ' forms to retain the positive half-wave of the ac signal of signal period and completely cutting negative half-wave, and the data signal ' 0 ' is
Retain the negative half-wave of the ac signal of signal period and completely cut positive half-wave and formed.
3. the street lamp according to claim 1 for directly utilizing power line reception signal, it is characterised in that the data signal
' 0 ' forms to retain the positive half-wave of the ac signal of signal period and completely cutting negative half-wave, and the data signal ' 1 ' is
Retain the negative half-wave of the ac signal of signal period and completely cut positive half-wave and formed.
4. the street lamp according to claim 1 for directly utilizing power line reception signal, it is characterised in that the header signal
In end signal, the number of the data signal ' 1 ' and data signal ' 0 ' balances.
5. the street lamp according to claim 1 for directly utilizing power line reception signal, it is characterised in that described to cut ripple module
For metal-oxide-semiconductor or controllable silicon.
6. the street lamp according to claim 1 for directly utilizing power line reception signal, it is characterised in that the detection module
Realized by comparator.
7. the street lamp according to claim 1 for directly utilizing power line reception signal, it is characterised in that first zero passage
Detection module and the second zero passage detection module are realized by photoelectrical coupler；The emission control module and described receive control
Module is single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610107344.1A CN105744673B (en) | 2016-02-26 | 2016-02-26 | A kind of street lamp for directly utilizing power line reception signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610107344.1A CN105744673B (en) | 2016-02-26 | 2016-02-26 | A kind of street lamp for directly utilizing power line reception signal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105744673A CN105744673A (en) | 2016-07-06 |
| CN105744673B true CN105744673B (en) | 2017-11-10 |
Family
ID=56248632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610107344.1A Active CN105744673B (en) | 2016-02-26 | 2016-02-26 | A kind of street lamp for directly utilizing power line reception signal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105744673B (en) |
Citations (2)
| 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 |
| 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 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101020499B1 (en) * | 2009-04-13 | 2011-03-09 | 벽산엔지니어링주식회사 | System for Illuminating Road |
| TWI541470B (en) * | 2013-02-07 | 2016-07-11 | Hep Tech Co Ltd | Dimmable light emitting diode lighting system |
-
2016
- 2016-02-26 CN CN201610107344.1A patent/CN105744673B/en active Active
Patent Citations (2)
| 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 |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105744673A (en) | 2016-07-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105611676B (en) | A kind of street light modulating system of direct utilization power line transmission signals | |
| CN106488607B (en) | Switching Power Supply and television set | |
| CN109831851A (en) | A kind of street lamp single-lamp control system and control method | |
| CN104363678B (en) | Street lamp control system | |
| CN105682290B (en) | A kind of street lamp central controller of direct utilization power line transmission signals | |
| CN107613610A (en) | intelligent lighting controller | |
| CN111148330A (en) | Railway tunnel lighting method based on wireless Internet of things technology | |
| CN103018510B (en) | Isolation spi bus electric energy metering module and APLC ammeter thereof | |
| CN102740570B (en) | A kind of remote LED light adjusting system | |
| CN106061081B (en) | Power adjustable xenon lamp stabilizer | |
| CN105744673B (en) | A kind of street lamp for directly utilizing power line reception signal | |
| CN205071393U (en) | Road lamp illumination system based on power line carrier | |
| CN206024207U (en) | A kind of inexpensive street lamp communication control system | |
| TWI220080B (en) | Measurement and protection apparatus of cold cathode tube group | |
| CN206584527U (en) | A kind of wireless carrier switch endpoint | |
| CN205901734U (en) | Bimodulus communication controller | |
| CN202948321U (en) | Terminal inspection tour and controller based on internet of things | |
| CN109738687A (en) | A kind of three-phase-voltage monitoring system and method | |
| CN206237137U (en) | Reactive compensation system based on automatic network-building technology | |
| CN104363677B (en) | Street lamp control method | |
| CN111194115B (en) | Railway tunnel lighting lamp distributed control method based on wireless Internet of things technology | |
| CN211152288U (en) | Intelligent controller of wisdom lamp pole | |
| CN108738205A (en) | A kind of street lighting monitoring system | |
| CN207305020U (en) | Controller for road lamp, street lamp and road lamp system | |
| CN207964933U (en) | Electric transmission line hot-line indicates system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |