CN205071393U - Road lamp illumination system based on power line carrier - Google Patents

Road lamp illumination system based on power line carrier Download PDF

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Publication number
CN205071393U
CN205071393U CN201520828001.5U CN201520828001U CN205071393U CN 205071393 U CN205071393 U CN 205071393U CN 201520828001 U CN201520828001 U CN 201520828001U CN 205071393 U CN205071393 U CN 205071393U
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China
Prior art keywords
module
power line
carrier
street lamp
illumination system
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Expired - Fee Related
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CN201520828001.5U
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Chinese (zh)
Inventor
洪立斌
周一真
朱江萍
张晓天
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Hangzhou Jushi Intelligent Technology Co Ltd
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Hangzhou Jushi Intelligent Technology Co Ltd
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Priority to CN201520828001.5U priority Critical patent/CN205071393U/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40Control techniques providing energy savings, e.g. smart controller or presence detection

Abstract

The utility model discloses a road lamp illumination system based on power line carrier, including a plurality of centralized control device, every centralized control device is connected with a plurality of lamp controller through the power line, and every lamp controller is connected with a street lighting at least, lamp controller with adopt power line carrier's mode to carry out data communication between the centralized control device, according to the control command that centralized control device sent, lamp controller controls corresponding street lighting, and detects street lighting's state information feeds back to centralized control device, adopt the technical scheme of the utility model, realizing the centralized control to street lighting through power line carrier technology, regarding as the outside access point of core simultaneously with long -range monitoring server, managers and user can visit it through web's mode to the realization is to road lamp illumination system's long -range real time monitoring.

Description

A kind of street lamp illumination system based on power line carrier
Technical field
The utility model relates to a kind of illuminator, particularly relates to a kind of street lamp illumination system based on power line carrier.
Background technology
Conventional road lamp lighting system control mode is single, can only open or close, and the artificial attended mode of the management employing of whole street lamp illumination system, all needs special messenger to operate on the spot to the opening and closing of street lamp, take time and effort; Administrative staff's lamp lighting device that cannot satisfy the need realizes centralized management, can not the ruuning situation of each street lamp of Real-Time Monitoring, causes the waste of the street lighting energy to a certain extent.
Power line carrier communication (PowerLineCarrier), being called for short PLC, is the distinctive communication mode of electric power system.It is loaded on power line after useful information is modulated into high-frequency carrier signal, using distribution line as communication medium, realizes the long-distance transmissions controlling the data such as message, voice, image.Adopting power line carrier communication mode, without the need to again setting up control circuit, as long as there is power line just can realize transfer of data, when framework street lamp illumination system without the need to separately spreading special line, being conducive to street lamp intellectualized reconstruction.
Along with global energy is in short supply, in " 12 " planning that China issues, " green city " and " smart city " referred unprecedented height, along with low-carbon (LC), environmental protection, being day by day rooted in the hearts of the people of ideas of energy-saving, intelligent road-lamp illumination has become core missions that are anxious to be resolved in construction of future cities and development.Under its development of current street lamp illumination system, how to make full use of embedded technology, power-line carrier communication, automated control technology and also combine effective management and parametric controller, solve the defect existing for current street lighting, realize efficient, environmental protection, energy-conservation, intelligent home lighting systems, also just become one, current Lighting control field new for critical problem.
Therefore, for the above-mentioned defect existed in currently available technology, be necessary to study in fact, to provide a kind of scheme, solve the defect existed in prior art.
Utility model content
In order to overcome the defect that prior art exists, necessaryly provide a kind of street lamp illumination system based on power line carrier, the centralized control to illuminating street lamp is realized by power line carrier technology, simultaneously using remote monitoring server as the foreign access point of core, administrative staff and user can be conducted interviews to it by the mode of Web, to realize the remote real-time monitoring to street lamp illumination system.
In order to solve the problem of prior art, the technical solution of the utility model is:
Based on a street lamp illumination system for power line carrier, comprise multiple central control device, each central control device is connected with multiple single-lamp controller by power line, and each single-lamp controller is at least connected with an illuminating street lamp;
The mode of power line carrier is adopted to carry out data communication between described single-lamp controller and described central control device; According to the control command that described central control device sends, described single-lamp controller controls corresponding illuminating street lamp, and detects the status information feedback of described illuminating street lamp to described central control device;
Described central control device carries out data communication by wireless network and remote monitoring center, for receive described remote monitoring center control command and by the status information feedback of each single-lamp controller give described remote monitoring center;
Client accesses described remote monitoring center in wired or wireless manner, for receive described remote monitoring center data message and to described remote monitoring center sending controling instruction.
Preferably, described central control device comprises power module, control module, wireless signal transmission module, Power Line Carrier Communication Module and ammeter module,
Described power module is connected with power line, for providing supply power voltage for described central control device;
Described control module is connected with ammeter module with described wireless signal transmission module, Power Line Carrier Communication Module, for controlling the work of described wireless signal transmission module, Power Line Carrier Communication Module and ammeter module;
Described wireless signal transmission module is used for carrying out data communication with described remote monitoring center wirelessly;
Described Power Line Carrier Communication Module is used for carrying out data communication by power line with corresponding single-lamp controller;
Described ammeter module is for gathering electrical network parameter information.
Preferably, described Power Line Carrier Communication Module comprises carrier Control chip, carrier wave sending module, carrier receiving module, power line couples module and zero passage detection module, wherein,
Controlled and the described control module of described carrier Control chip, for controlling transmission or the reception of carrier signal;
Described carrier wave sending module is connected with described carrier Control chip, for sending carrier signal and be sent to power line after described power line couples module coupling;
Described carrier receiving module is connected with described carrier Control chip, for receiving the carrier signal on the power line of described power line couples module coupling, and sends to described carrier Control chip;
Described zero passage detection module is for detecting the zero pulse signal of alternating current on power line, and described carrier Control chip is according to the transmission of this zero pulse signal controlling carrier signal or reception.
Preferably, described carrier Control chip adopts micro-company of Fudan University model to be the electric power line carrier chip of FM3203.
Preferably, described ammeter module comprises at least one voltage acquisition module, at least one current acquisition module and electric energy metering module, wherein,
Described voltage acquisition module is connected with power line, for gathering the voltage signal in power line;
Described current acquisition module is connected with power line, for gathering the current signal in power line;
Controlled and the described control module of described electric energy metering module, and being connected with described current acquisition module with described voltage acquisition module, for according to described voltage acquisition module and described current acquisition module metering electrical network parameter.
Preferably, described ammeter module comprises three road voltage acquisition modules and three road current acquisition modules.
Preferably, described electric energy metering module adopts the electric energy chip ADE7880 of ADI company of the U.S..
Preferably, described voltage acquisition module adopts model to be the voltage transformer of SPT204V; Described current acquisition module adopts model to be the current transformer of SCT254A.
Preferably, described control module adopts the single-chip microcomputer STM32FVCT6 of ST company.
Preferably, described wireless signal transmission module is any one in GPRS module, 3G module or 4G module.
Compared with prior art, a kind of street lamp illumination system based on power line carrier of the present utility model is by the centralized control of power line carrier technology realization to illuminating street lamp, owing to adopting power line as data transmission media, without the need to additionally laying communication link, be easy to installation and maintenance; And in conjunction with embedded technology, power-line carrier communication and Web technology, current indoor light adjusting system is rebuild and transformed, using remote monitoring server as the foreign access point of core, administrative staff and user can be conducted interviews to it by the mode of Web, to realize the remote real-time monitoring to street lamp illumination system.
Accompanying drawing explanation
Fig. 1 is the theory diagram of a kind of street lamp illumination system based on power line carrier of the utility model;
Fig. 2 is a kind of theory diagram based on central control device in the street lamp illumination system of power line carrier of the utility model;
Fig. 3 is the theory diagram of Power Line Carrier Communication Module in the utility model central control device;
Fig. 4 is the theory diagram of ammeter module in the utility model central control device.
Fig. 5 is the circuit theory diagrams of voltage acquisition module in the utility model ammeter module.
Fig. 6 is the circuit theory diagrams of current acquisition module in the utility model ammeter module.
Following specific embodiment will further illustrate the utility model in conjunction with above-mentioned accompanying drawing.
Embodiment
What provide the utility model below with reference to accompanying drawing is described further.
See Fig. 1, be depicted as the theory diagram for a kind of street lamp illumination system based on power line carrier of the utility model, comprise multiple central control device, each central control device is connected with multiple single-lamp controller by power line, and each single-lamp controller is at least connected with an illuminating street lamp;
The mode of power line carrier is adopted to carry out data communication between described single-lamp controller and described central control device; According to the control command that described central control device sends, described single-lamp controller controls corresponding illuminating street lamp, and detects the status information feedback of described illuminating street lamp to described central control device;
Described central control device carries out data communication by wireless network and remote monitoring center, for receive described remote monitoring center control command and by the status information feedback of each single-lamp controller give described remote monitoring center;
Client accesses described remote monitoring center in wired or wireless manner, for receive described remote monitoring center data message and to described remote monitoring center sending controling instruction.
Whole system is primarily of remote monitoring center (server), central control device, single-lamp controller, long-range Web client four part composition.Single-lamp controller is a single node with power line carrier communication ability, and it had both realized reception to carrier data and identification, is also to realize lamp brightness to control the end effector with information gathering simultaneously.Each single-lamp controller has a unique address designation, the data that reception server transmits, and carries out Address Recognition to data, realizes the accurate control to illuminating street lamp by the pwm signal producing corresponding duty ratio.Central control device is in the centre of system, is the bridge of connection server and single-lamp controller, wirelessly carries out data communication with server; Linked together by 220V power line with each single-lamp controller, belong to bus-type, when shared bus, central control device belongs to assemble mode, and all connected single-lamp controllers belong to from pattern.Central control device adopts broadcast mode to initiate to control to single-lamp controller, determines response or forward by node.
Server is the core of whole street lamp illumination system, has information storage, management, inquiry and control PLC network and provides remote access function by Internet.Server is equivalent to a Proxy access points of PLC network access exterior I nternet in street lamp illumination system, and has been in charge of whole street lamp illumination system, therefore needs stronger data-handling capacity and larger data storage capacity.
Terminal Server Client sing on web technology realizes, and makes system have higher extensibility and flexibility.Owing to merging Web technology, the client (mobile phone, PAD and PC) under B/S pattern only need browser just can realize the access control to system.All on the server, and all data manipulations are all transparent concerning user for all data and software, substantially increase the versatility of street lamp illumination system with open.
See Fig. 2, be depicted as a kind of theory diagram based on central control device in the street lamp illumination system of power line carrier of the utility model, comprise power module, control module, wireless signal transmission module, Power Line Carrier Communication Module and ammeter module further, described power module is connected with power line, for providing supply power voltage for described central control device; Described control module is connected with ammeter module with described wireless signal transmission module, Power Line Carrier Communication Module, for controlling the work of described wireless signal transmission module, Power Line Carrier Communication Module and ammeter module; Described wireless signal transmission module is used for carrying out data communication with described remote monitoring center wirelessly; Described Power Line Carrier Communication Module is used for carrying out data communication by power line with corresponding single-lamp controller; Described ammeter module is for gathering electrical network parameter information.
See Fig. 3, be depicted as the theory diagram of Power Line Carrier Communication Module in the utility model central control device, Power Line Carrier Communication Module comprises carrier Control chip, carrier wave sending module, carrier receiving module, power line couples module and zero passage detection module further, wherein
Controlled and the described control module of described carrier Control chip, for controlling transmission or the reception of carrier signal;
Described carrier wave sending module is connected with described carrier Control chip, for sending carrier signal and be sent to power line after described power line couples module coupling;
Described carrier receiving module is connected with described carrier Control chip, for receiving the carrier signal on the power line of described power line couples module coupling, and sends to described carrier Control chip;
Described zero passage detection module is for detecting the zero pulse signal of alternating current on power line, and described carrier Control chip is according to the transmission of this zero pulse signal controlling carrier signal or reception.
In a preferred embodiment, carrier Control chip adopts micro-company of Fudan University model to be the electric power line carrier chip of FM3203.FM3203 chip aly to design and the power line carrier communication chip of excellent performance for domestic electrical thread environment specially.FM3203 adopt be the fast frequency-hopped modulation-demodulation technique of multicarrier, effectively can resist the strong jamming in power line channel, when noise and frequency response larger, still there is good transmission performance.Built-in chip type low-noise reception signal amplifier and digital filter, enormously simplify peripheral circuit, is also supplied to microprocessor data/control interface (Asynchronous Serial Interface or synchronous serial interface) flexibly simultaneously, very easy to use.
The serial line interface of FM3203 has synchronous and asynchronous two kinds of operator schemes, and when chip powers on or reset, the incoming level by SMOD pin is configured.When SMOD is low level, adopt synchronous mode, now RXD is used for the input of bit synchronization clock, and TXD then receives and dispatches for synchrodata; When SMOD is high level, adopt asynchronous mode, under now serial line interface is operated in UART mode (baud rate is 9600bps, 1 start bit, 8 bit data, 1 position of rest, no parity), RXD and TXD is then respectively used to the asynchronous receiving-transmitting of data.In the design, SMOD is set to high level, adopts asynchronous mode, is communicated by UART serial ports with control module.
In a preferred embodiment, described control module adopts the single-chip microcomputer STM32FVCT6 of ST company.Single-chip microcomputer STM32FVCT6 is that a valency is than very high single-chip microcomputer.STM32 series monolithic is high-performance, low-power scm based on ARMCortex-M3 kernel, and operating frequency can reach 72MHZ, and power consumption is 36mA, and standby is that power consumption can be reduced to 2uA.STM32, with abundant peripheral hardware, contains the 16 bit timing devices that 2 12 ADC and 3 is general, 2 I2C interfaces and SPI interface, 3 USART interfaces etc.
In a preferred embodiment, described wireless signal transmission module is any one in GPRS module, 3G module or 4G module.
See Fig. 4, be depicted as the theory diagram of ammeter module in the utility model central control device, ammeter module comprises at least one voltage acquisition module, at least one current acquisition module and electric energy metering module, wherein,
Described voltage acquisition module is connected with power line, for gathering the voltage signal in power line;
Described current acquisition module is connected with power line, for gathering the current signal in power line;
Controlled and the described control module of described electric energy metering module, and being connected with described current acquisition module with described voltage acquisition module, for according to described voltage acquisition module and described current acquisition module metering electrical network parameter.
In order to by ammeter module application in three phase network, in a preferred embodiment, the utility model ammeter module comprises three road voltage acquisition modules and three road current acquisition modules.
See Fig. 5, be depicted as the circuit theory diagrams of voltage acquisition module in the utility model ammeter module, comprise the first resistance R1, second resistance R2, 3rd resistance R3, 4th resistance R4, 5th resistance R5, 6th resistance R6, first electric capacity C1 and voltage transformer, wherein, one end of first resistance R1 is connected with the live wire of power line, the other end of the first resistance R1 is connected with one end of the second resistance R2, the other end of the second resistance R2 is connected with 1 end of voltage transformer input, 2 ends of voltage transformer input are connected with one end of the 6th resistance R6, the other end of the 6th resistance R6 is connected with one end of the 5th resistance R5, the other end of the 5th resistance R5 is connected with one end of the 4th resistance R4, the other end of the 4th resistance R4 is connected with the zero line of power line, 1 end of voltage transformer output is connected with one end of the first electric capacity C1 with one end of the 3rd resistance R3, and is jointly connected with electric energy metering module, 2 ends of voltage transformer output are connected with the other end of the first electric capacity C1 with the other end of the 3rd resistance R3, and are jointly connected to the ground and connect.
In a preferred embodiment, the utility model adopts turn ratio to be the voltage transformer of 1:1, concrete model is SPT204V, its effect is the low-voltage converted to according to a certain percentage by high voltage for metering or Instrument use, simultaneously by the isolation of voltage transformer by high voltage and electric equipment, ensure the safety of staff.The specified input current of the voltage transformer of this model is 2mA, output-current rating is 2mA, nonlinearity is less than 0.1%, the range of linearity is 0 ~ 10mA, and specified input maximum load is 500 Ω, and its precision is less than 1%, after overcompensation, phase shift is less than 5 ', and isolating withstand voltage is 2500V, operating temperature range-50 DEG C ~+65 DEG C.
The input current of voltage transformer is determined by the resistance of the first resistance R1, the second resistance R2, the 4th resistance R4, the 5th resistance R5 and the 6th resistance R6.
Owing to all there is the defect of aliasing effect in sample circuit, for preventing distorted signals from must introduce frequency overlapped-resistable filter, the general low pass filter that adopts carries out filtering, and in the utility model, the 3rd resistance R3 and the first electric capacity C1 constitutes a RC filter.In order to make sample frequency obtain enough large decay when 1.024MHZ, employ the RC filter that corner frequency is 5kHZ, wherein the resistance of the 3rd resistance R3 is 1k Ω, and the capacitance of the first electric capacity C1 is 2.2nf.
See Fig. 6, be depicted as the circuit theory diagrams of current acquisition module in the utility model ammeter module, comprise current transformer, 7th resistance R7, 8th resistance R8, 9th resistance R9, tenth resistance R10, second electric capacity C2 and the 3rd electric capacity C3, wherein, the input of described current transformer is serially connected with power line, 2 ends of the output of described current transformer are connected with one end of described 8th resistance R8 with one end of described 7th resistance R7, the other end of described 7th resistance R7 is connected with one end of described second electric capacity C2, and be jointly connected with described electric energy metering module, 1 end of the output of described current transformer is connected with one end of described tenth resistance R10 with one end of described 9th resistance R9, the other end of described 8th resistance R8 is connected with one end of described 3rd electric capacity C3 with the other end of the other end of described 9th resistance R9, described second electric capacity C2, and is jointly connected to the ground and connects, the other end of described tenth resistance R10 is connected with the other end of described 3rd electric capacity C3, and is jointly connected with described electric energy metering module.
In a preferred embodiment, the utility model adopts the model of current transformer to be SCT254A, and the effect of current transformer larger primary current is converted to according to a certain percentage lower secondary current for measuring and Instrument use.The current transformer of to be turn ratio the be 1:2000 that current sampling circuit adopts, specified input current is 5A, 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 withstand voltagely to be greater than 3500V, operating temperature range-50 DEG C ~+65 DEG C.
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 filter, and wherein, the resistance of the 7th resistance R7 and the tenth resistance R10 is 1k Ω, and the capacitance of the second electric capacity C2 and the 3rd electric capacity C3 is 2.2nf.
In a preferred embodiment, electric energy metering module adopts the electric energy chip ADE7880 of ADI company of the U.S., this chip is a high accuracy, the three-phase electric energy metering IC that ADI company of the U.S. produces, it is 25 DEG C in temperature, time in dynamic range 2000:1, effective value error, active power and First Harmonic Reactive Power error are all less than 0.1%, and reference voltage is 1.2V, and have outside mistake and drive function.ADE7880 has I2C and SPI dual serial interface, I2C and use to access the registers such as instantaneous voltage, electric current and instantaneous power with HSDC Interference fit.ADE7880 has three road voltage channels and four road current channels to calculate the voltage of phase voltages and phase current, current effective value and instantaneous value, frequency, total active power, First Harmonic Reactive Power, apparent power, harmonic distortion rate and total active energy, fundamental wave reactive power electric energy, apparent electric energy etc.In addition ADE788 provides three tunnel logics to export, and provides various power information.
The explanation of above embodiment just understands method of the present utility model and core concept thereof for helping.Should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model principle, can also carry out some improvement and modification to the utility model, these improve and modify and also fall in the protection range of the utility model claim.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.

Claims (10)

1. based on a street lamp illumination system for power line carrier, it is characterized in that, comprise multiple central control device, each central control device is connected with multiple single-lamp controller by power line, and each single-lamp controller is at least connected with an illuminating street lamp;
The mode of power line carrier is adopted to carry out data communication between described single-lamp controller and described central control device; According to the control command that described central control device sends, described single-lamp controller controls corresponding illuminating street lamp, and detects the status information feedback of described illuminating street lamp to described central control device;
Described central control device carries out data communication by wireless network and remote monitoring center, for receive described remote monitoring center control command and by the status information feedback of each single-lamp controller give described remote monitoring center;
Client accesses described remote monitoring center in wired or wireless manner, for receive described remote monitoring center data message and to described remote monitoring center sending controling instruction.
2. the street lamp illumination system based on power line carrier according to claim 1, is characterized in that, described central control device comprises power module, control module, wireless signal transmission module, Power Line Carrier Communication Module and ammeter module,
Described power module is connected with power line, for providing supply power voltage for described central control device;
Described control module is connected with ammeter module with described wireless signal transmission module, Power Line Carrier Communication Module, for controlling the work of described wireless signal transmission module, Power Line Carrier Communication Module and ammeter module;
Described wireless signal transmission module is used for carrying out data communication with described remote monitoring center wirelessly;
Described Power Line Carrier Communication Module is used for carrying out data communication by power line with corresponding single-lamp controller;
Described ammeter module is for gathering electrical network parameter information.
3. the street lamp illumination system based on power line carrier according to claim 2, it is characterized in that, described Power Line Carrier Communication Module comprises carrier Control chip, carrier wave sending module, carrier receiving module, power line couples module and zero passage detection module, wherein
Controlled and the described control module of described carrier Control chip, for controlling transmission or the reception of carrier signal;
Described carrier wave sending module is connected with described carrier Control chip, for sending carrier signal and be sent to power line after described power line couples module coupling;
Described carrier receiving module is connected with described carrier Control chip, for receiving the carrier signal on the power line of described power line couples module coupling, and sends to described carrier Control chip;
Described zero passage detection module is for detecting the zero pulse signal of alternating current on power line, and described carrier Control chip is according to the transmission of this zero pulse signal controlling carrier signal or reception.
4. the street lamp illumination system based on power line carrier according to claim 3, is characterized in that, described carrier Control chip adopts micro-company of Fudan University model to be the electric power line carrier chip of FM3203.
5. the street lamp illumination system based on power line carrier according to claim 2, is characterized in that, described ammeter module comprises at least one voltage acquisition module, at least one current acquisition module and electric energy metering module, wherein,
Described voltage acquisition module is connected with power line, for gathering the voltage signal in power line;
Described current acquisition module is connected with power line, for gathering the current signal in power line;
Controlled and the described control module of described electric energy metering module, and being connected with described current acquisition module with described voltage acquisition module, for according to described voltage acquisition module and described current acquisition module metering electrical network parameter.
6. the street lamp illumination system based on power line carrier according to claim 5, is characterized in that, described ammeter module comprises three road voltage acquisition modules and three road current acquisition modules.
7. the street lamp illumination system based on power line carrier according to claim 5, is characterized in that, described electric energy metering module adopts the electric energy chip ADE7880 of ADI company of the U.S..
8. the street lamp illumination system based on power line carrier according to claim 5, is characterized in that, described voltage acquisition module adopts model to be the voltage transformer of SPT204V; Described current acquisition module adopts model to be the current transformer of SCT254A.
9. the street lamp illumination system based on power line carrier according to claim 2, is characterized in that, described control module adopts the single-chip microcomputer STM32FVCT6 of ST company.
10. the street lamp illumination system based on power line carrier according to claim 2, is characterized in that, described wireless signal transmission module is any one in GPRS module, 3G module or 4G module.
CN201520828001.5U 2015-10-23 2015-10-23 Road lamp illumination system based on power line carrier Expired - Fee Related CN205071393U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110708093A (en) * 2019-09-10 2020-01-17 瑞斯康微电子(深圳)有限公司 Real-time monitoring system and method for power line carrier communication equipment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110708093A (en) * 2019-09-10 2020-01-17 瑞斯康微电子(深圳)有限公司 Real-time monitoring system and method for power line carrier communication equipment
CN110708093B (en) * 2019-09-10 2022-02-15 瑞斯康微电子(深圳)有限公司 Real-time monitoring system and method for power line carrier communication equipment

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