CN207911093U - A kind of illumination intelligent controller and system - Google Patents

A kind of illumination intelligent controller and system Download PDF

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Publication number
CN207911093U
CN207911093U CN201721868554.9U CN201721868554U CN207911093U CN 207911093 U CN207911093 U CN 207911093U CN 201721868554 U CN201721868554 U CN 201721868554U CN 207911093 U CN207911093 U CN 207911093U
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module
acquisition module
illumination
intelligent controller
phase
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陈晓光
廖望
刘旭
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TIANJIN GANGDONGJIANG CONSTRUCTION DEVELOPMENT Co Ltd
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TIANJIN GANGDONGJIANG CONSTRUCTION DEVELOPMENT Co Ltd
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Abstract

The utility model discloses a kind of illumination intelligent controller and system, it is related to roam lamp control device technical field, can improve existing street lamp illumination system can not in time monitoring alarm, positioning failure, data acquisition and passback the problem of, realize intelligent digitalized city management.Illumination intelligent controller provided by the utility model, including intelligent monitoring terminal module, three phase mains, three-phase voltage acquisition module, three-phase current acquisition module, the first mutual inductor, display and lighting mechanism;Intelligent monitoring terminal module is separately connected with three phase mains, three-phase voltage acquisition module, three-phase current acquisition module, display and lighting mechanism, and the first mutual inductor is connect with three-phase current acquisition module.

Description

A kind of illumination intelligent controller and system
Technical field
The utility model is related to roam lamp control device technical fields, in particular to a kind of illumination intelligent controller And system.
Background technology
Become city management with the quickening of urbanization process, city road at night time safety and management and control with the development of science and technology Important component.Eastern boundary port bonded area is the chief component of Tianjin region free love trade garden, in Tianjin City There is consequence and influence in development.
Currently, existing 113 main roads in the areas Dong Jianggang, 4017, power lighting street lamp, electric power box become 51.In electric power In the case that associate's establishment is limited, the case of usual roadway lighting system becomes the dimension of the equipment of controller, lamps and lanterns and cable etc. It is very big to protect maintenance load.In addition, street lamp illumination system can not realize timely monitoring alarm, positioning failure, number to each street lamp According to the functions such as acquisition and passback.
In order to reinforce the management to urban area, under the premise of ensureing vehicle travel at night safety in the area of port, there is an urgent need for right Region night street lighting equipment realizes facilitation and intelligent control, reduce the operation and maintenance of manpower workload and equipment at This, reaches the target of energy-saving and emission-reduction.
Utility model content
The purpose of this utility model is to provide a kind of illumination intelligent controller and systems, are shone with improving existing street lamp Bright system can not in time monitoring alarm, positioning failure, data acquisition and passback the problem of, realize intelligent digitalized city management.
In order to realize that the above-mentioned purpose of the utility model, spy use following technical scheme:
The utility model provides a kind of illumination intelligent controller, including intelligent monitoring terminal module, three phase mains, three-phase Voltage acquisition module, three-phase current acquisition module, the first mutual inductor, display and lighting mechanism;The intelligent monitoring terminal mould Block and the three phase mains, the three-phase voltage acquisition module, the three-phase current acquisition module, the display and the photograph Bright mechanism is separately connected, and first mutual inductor is connect with the three-phase current acquisition module.
Specifically, the illumination intelligent controller further includes branch current acquisition module and is acquired with the branch current Second mutual inductor of module connection;One end of the branch current acquisition module connect with the intelligent monitoring terminal module, is another One end is connect with the lighting mechanism.
Further, the lighting mechanism includes street lamp, lamp stand, streetlight control box, street lamp distribution box;The Street lamps control Case is connect with the intelligent monitoring terminal module by signal;The street lamp distribution box connects with the branch current acquisition module signal It connects;It is provided with electronic tag on the lamp stand, the information of corresponding street lamp is stored in the electronic tag.
Further, the illumination intelligent controller further includes power collection module, the power collection module Input terminal is connect with the streetlight control box, and the power collection module output end is connect with the intelligent monitoring terminal module.
Further, the illumination intelligent controller further includes remote monitoring host, and the remote monitoring host is matched It is equipped with geography information module, the geography information module is connect with the intelligent monitoring terminal module by signal;The remote monitoring Host can be used in showing fault loop, positioning and analyze failure and publication interface alarm, audio alert or SMS alarm.
Further, first mutual inductor is AC current transformer;First mutual inductor includes output ratio 200A/100mA mutual inductors or 300A/100mA mutual inductors.
Further, second mutual inductor is AC current transformer;Second mutual inductor includes output ratio 100A/40mA mutual inductors.
Compared with prior art, illumination intelligent controller provided by the utility model has following advantage:
The utility model provides a kind of illumination intelligent controller, including intelligent monitoring terminal module, three phase mains, three-phase Voltage acquisition module, three-phase current acquisition module, the first mutual inductor, display and lighting mechanism;Intelligent monitoring terminal module with Three phase mains, three-phase voltage acquisition module, three-phase current acquisition module, display and lighting mechanism are separately connected, the first mutual inductance Device is connect with three-phase current acquisition module.From this analysis, in illumination intelligent controller provided by the utility model, due to It is provided with intelligent monitoring terminal module and three-phase voltage acquisition module, therefore the voltage number of A phase, B phase, C phase can be measured in real time According to and return to intelligent monitoring terminal module, the virtual voltage of acquisition is compared intelligent monitoring terminal module with voltage threshold, If being more than threshold value, illumination intelligent controller will produce alarm, judge whether power supply is normal in streetlight control box body accordingly;By In being provided with three-phase current acquisition module, the first mutual inductor is connect with three-phase current acquisition module, therefore in addition to detecting three in real time Outside phase voltage, while the current data of A phase, B phase, C phase can also being measured in real time and returns to intelligent monitoring terminal module, intelligence is supervised The actual current of acquisition is compared control terminal module with current threshold, if being more than threshold value, illumination intelligent controller meeting Alarm is generated, judges whether street lamp leaks electricity or normal switch accordingly;Since intelligent monitoring terminal module is also connect with display, because This display can accurately show and positioning failure, so as to the lighting mechanism of urban road carry out timely monitoring alarm, Positioning failure, data acquisition and passback, are advantageously implemented the advantageous effect of intelligent digitalized city management.In addition, this practicality is new The history such as electric current, the voltage that the intelligent controlling device that type provides can also run lighting mechanism by intelligent monitoring terminal module Data carry out record and are aggregated to form table, enable administrative staff that these tables are temporally consulted and be printed, to just In analysis data and device is effectively managed.
The utility model also provides a kind of illumination intelligence control system, including illumination intelligent controller as described above, It further include the control centre's monitor supervision platform being connect with the illumination intelligent controller signal.
Illumination intelligence control system described in the utility model compared with the existing technology with the illumination intelligent controller The advantage is identical, and details are not described herein.
Description of the drawings
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art Specific implementation mode or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art Under the premise of labour, other drawings may also be obtained based on these drawings.
Fig. 1 is the local easy structure schematic diagram for the illumination intelligent controller that the utility model embodiment provides.
Icon:001- intelligent monitoring terminal modules;The first mutual inductors of 002-;003- displays;The second mutual inductors of 004-; 005- breakers;006- change-over switches;007- outputs are spaced apart;008- line banks;009- zero curves are arranged;010- earthing bars;011- is protected Dangerous silk;012- contactors.
Specific implementation mode
Below in conjunction with the accompanying drawings and specific embodiment is described further the utility model, but following embodiments are right absolutely not The utility model has any restrictions.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term is " even Connect ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected;It can It can be signal connection to be mechanical connection, can also be electrical connection;It can be directly connected, intermediary can also be passed through It is indirectly connected, can be the connection inside two elements.For the ordinary skill in the art, it can be managed with concrete condition Solve the concrete meaning of above-mentioned term in the present invention.
Fig. 1 is the local easy structure schematic diagram for the illumination intelligent controller that the utility model embodiment provides.
As shown in Figure 1, the utility model embodiment provides a kind of illumination intelligent controller, including intelligent monitoring terminal mould Block 001, three phase mains, three-phase voltage acquisition module, three-phase current acquisition module, the first mutual inductor 002, display 003 and photograph Bright mechanism;Intelligent monitoring terminal module 001 and three phase mains, three-phase voltage acquisition module, three-phase current acquisition module, display 003 and lighting mechanism be separately connected, the first mutual inductor 002 is connect with three-phase current acquisition module.
Compared with prior art, the illumination intelligent controller that the utility model embodiment provides has following advantage:
The utility model embodiment provides a kind of illumination intelligent controller, as shown in Figure 1, including intelligent monitoring terminal mould Block 001, three phase mains, three-phase voltage acquisition module, three-phase current acquisition module, the first mutual inductor 002, display 003 and photograph Bright mechanism;Intelligent monitoring terminal module 001 and three phase mains, three-phase voltage acquisition module, three-phase current acquisition module, display 003 and lighting mechanism be separately connected, the first mutual inductor 002 is connect with three-phase current acquisition module.From this analysis, this practicality In the illumination intelligent controller that new embodiment provides, adopted due to being provided with intelligent monitoring terminal module 001 and three-phase voltage Collect module, therefore the voltage data of A phase, B phase, C phase can be measured in real time and return to intelligent monitoring terminal module 001, intelligence is supervised The virtual voltage of acquisition is compared control terminal module 001 with voltage threshold, if being more than threshold value, illumination intelligent controller Alarm is will produce, judges whether power supply is normal in streetlight control box body accordingly;Due to being provided with three-phase current acquisition module, first Mutual inductor 002 is connect with three-phase current acquisition module, therefore other than detecting three-phase voltage in real time, while can also be measured in real time The current data of A phase, B phase, C phase simultaneously returns to intelligent monitoring terminal module 001, and intelligent monitoring terminal module 001 is by the reality of acquisition Border electric current is compared with current threshold, if being more than threshold value, illumination intelligent controller will produce alarm, judge street lamp accordingly Whether leak electricity or normal switch;Since intelligent monitoring terminal module 001 is also connect with display 003, display 003 can Accurate display and positioning failure, so as to carry out timely monitoring alarm, positioning failure, data to the lighting mechanism of urban road Acquisition and passback, are advantageously implemented the advantageous effect of intelligent digitalized city management.In addition, what the utility model embodiment provided The historical datas such as electric current, the voltage that intelligent controlling device can also run lighting mechanism by intelligent monitoring terminal module 001 It carries out record and is aggregated to form table, enable administrative staff that these tables are temporally consulted and be printed, consequently facilitating point It analyses data and device is effectively managed.
Optionally, the illumination intelligent controller that the utility model embodiment provides includes being controlled based on multiprocessor The embedded hardware circuit board of multi-agent systems, master control use 32 ARM high-performance CPU, processor clock to be up to 72MHz, and the on-chip SRAM memory containing Flash and 58KB in the up to piece of 512KB in piece, there is powerful communication to connect Mouthful and enhanced peripheral hardware, fully ensure the abilities such as required operation, communication process, realize multiple control targes decoupling and Modularization makes full use of the computation capability of multi-microprocessor and the multitasking ability of real-time operation, provides height The operation of effect, in real time acquisition, control function, and power consumption can be optimized.
The illumination intelligent controller that the utility model embodiment provides has reliable and stable power-supply system, that is, three-phase electricity Source, the stability that three phase mains has hardware high temperature long-term using solid capacitor, simultaneously because using more efficient power supply Circuit, can be energy-saving.
Specifically, in order to realize that current acquisition and monitoring effect, the utility model embodiment carry to more lighting mechanisms In the illumination intelligent controller of confession, further include branch current acquisition module and connect with branch current acquisition module second mutually Sensor 004;One end of branch current acquisition module is connect with intelligent monitoring terminal module 001, the other end and lighting mechanism connect. Due to being provided with branch current acquisition module and the second mutual inductor 004, branch current acquisition module in illumination intelligent controller One end connect with intelligent monitoring terminal module 001, the connection of the other end and lighting mechanism, therefore branch current acquisition module can Real time monitoring and the acquisition of voltage and current data are carried out to each branch, to be refined to the fault condition of each lighting mechanism Judge, greatlys improve the accuracy rate of fault alarm.
Optionally, the second mutual inductor 004 can coordinate branch current acquisition module to more (examples in illumination intelligent controller Such as 1-24 branch) branch current is acquired data.
Optionally, as shown in Figure 1, further including breaker 005, change-over switch 006, output sky in illumination intelligent controller Open 007, line bank 008, zero curve row 009, earthing bar 010, fuse 011 etc..
Further, in order to monitor power supply quality, the accuracy rate of fault alarm is improved, while personnel easy to repair are accurate Really grasp the information of corresponding lighting mechanism, in the illumination intelligent controller that the utility model embodiment provides, lighting mechanism packet Include street lamp, lamp stand, streetlight control box, street lamp distribution box;Streetlight control box is connect with 001 signal of intelligent monitoring terminal module;Road Lamp distribution box is connect with branch current acquisition module signal;It is provided with electronic tag on lamp stand, correspondence is stored in electronic tag The information of street lamp.Since streetlight control box is connect with 001 signal of intelligent monitoring terminal module, intelligent monitoring end can be passed through End module 001 monitors streetlight control box in real time, obtains power supply quality information in time;Since street lamp distribution box and branch current acquire Module by signal connects, therefore can realize that the electric current to each branch outlet of street lamp distribution box is detected, and can be to each Road abnormal conditions are alarmed, and the accuracy rate of fault alarm to increase is improved;Due to being posted on the lamp stand of each street lamp Electronic tag has the essential information of corresponding street lamp, such as the building time of street lamp, manufacturer, street lamp master in electronic tag Want the other information etc. of accessory information, street lamp illumination and street lamp can be quick after administrative staff are by equipment read electronic label The information in electronic tag is obtained, to facilitate administrative staff or maintenance personal accurately to grasp the relevant information of the street lamp.Such as Street lamp operation maintenance personnel can install electronic label reader on inspection vehicle, can be run in vehicle by illumination management software The number and corresponding illuminance information of record street lamp in the process, saves artificial and time cost, greatly improves work effect Rate.
Optionally, can also include electronic label reader in illumination intelligent controller, electronic label reader can Quickly read the information that electronic tag is included has consequently facilitating maintenance personal fast and accurately grasps the relevant information of street lamp Effect improves working efficiency.
Further, in order to obtain electric energy service condition in real time, in order to which administrative staff or maintenance personal are fixed in time Position simultaneously solves failure, further includes power collection module, the input terminal and street lamp of power collection module in illumination intelligent controller Control cabinet connects, and power collection module output end is connect with intelligent monitoring terminal module 001.Due to the input of power collection module End is connect with streetlight control box, and power collection module output end is connect with intelligent monitoring terminal module 001, therefore power collecting mould Block can acquire the power factor of streetlight control box, and be transferred to intelligent monitoring terminal module 001, to obtain the power supply of circuit Quality condition, while the active power and reactive power of streetlight control box A phase, B phase, C phase can also be acquired, such as work as wattful power When rate accounting too low (i.e. reactive power accounting is excessive), line loss increase, capacity decline and capacity utilization can be caused to decline, to The case where causing waste of energy to increase, can be convenient for administrative staff or maintenance personal to position and solve in time by acquiring power information Certainly failure, thus the repair or transformation of situations such as control point low to efficiency in time carries out lamps and lanterns or cable.
Further, in order to realize that the purpose controlled street lamp real time remote, the illumination intelligent controller further include Remote monitoring host, remote monitoring host are configured with geography information module, geography information module and intelligent monitoring terminal module 001 Signal connects;Remote monitoring host can be used in showing fault loop, positioning and analyze failure and the alarm of publication interface, voice reporting Alert or SMS alarm.Since remote monitoring host is configured with geography information module, geography information module and intelligent monitoring terminal mould 001 signal of block connects, and the distribution situation that geography information module can become street lamp in whole region and case carries out map displaying, because This can be acquired the GPRS signal values of each control point live (street lamp) and be shown on remote monitoring host, to Can judge the stability that the control point device is reached the standard grade, if GPRS signal values it is too low be easy to cause equipment reach the standard grade it is unstable, management Personnel can ask commmunication company to improve the situation in advance according to such case;In use, on the basis of regional geography figure On, GIS advantages, the total arrangement of comprehensive display street lamp facility, the evolution and pass through picture and text that street lamp is distributed can be given full play to It mutually looks into, grasps the details such as basic account, the maintenance record of every street lamp, fully realize the management and control from totality to part, it is right The management of each component can fulfill;Since remote monitoring host can also belong to case change, quick positioning failure and alarm, And it is for statistical analysis, to provide aid decision for administrative staff.When for statistical analysis, street lamp event can be counted by road Hinder situation, analyzes the reason of failure occurs;Or the accessory and model for being susceptible to failure can be found out by failure mode analysis; Or the expense of the source for street light maintenance O&M of statistics different model or brand, analyze the quality of affiliated brand model.Carry out aid decision When, can according to the result of statistical analysis and the related data of accumulation, for late region lighting installation construction provide type selecting and Foundation is purchased, street lamp bright light pattern can also be optimized under the premise of not influencing illumination, reduce the expense that street lighting generates, To contribute for energy-saving and emission-reduction.
It should be added that, remote monitoring host has following higher degree of protection herein:(1) there is Anti-surging (lightning protection) ability can bear 5KV or more voltages, and ability equipment under the test voltage of differential mode 5KV does not have function or property Temporarily it can reduce or lose;(2) there is antistatic interference performance, the positive and negative 15KV of atmospherical discharges can be born, contact discharge is positive and negative 8KV, and equipment does not have the temporarily reduction of function or performance or loses under the trystate of 15KV or 8KV;(3) there is anti-electricity quickly Impulse train interference performance can bear positive and negative 4KV or more fast pulse interference trains.
Optionally, illumination intelligent controller further includes contactor 012, the coil terminal connecting zero line of contactor 012 and illumination The control line of intelligent controlling device, opened point meet Tcom and feed back input state.
Further, in order to detect three-phase voltage and acquire current data, in the illumination intelligent controller, first mutually Sensor 002 is AC current transformer;First mutual inductor 002 includes output ratio 200A/100mA mutual inductors or 300A/100mA Mutual inductor.First mutual inductor 002 is used to detect the state of three-phase voltage.There are a both threads in the bottom of the first mutual inductor 002, one For inlet wire, another is outlet, is coupled in the acquisition terminal of corresponding three-phase current acquisition module.
Further, in order to realize the purpose of branch current gathered data, second mutually in the illumination intelligent controller Sensor 004 is AC current transformer;Second mutual inductor 004 includes output ratio 100A/40mA mutual inductors.Second mutual inductor 004 can coordinate subcircuits to acquire.
It should be added that, consider the convenience of the process characteristic and production test of factory's batch production herein, this Necessary test interface is reserved on each component for the illumination intelligent controller that utility model embodiment provides, simplification was tested Journey shortens difficulty of test and time, eventually greatly improves the production capacity and yield of product line, meet delivery date needs.
The utility model also provides a kind of illumination intelligence control system, which includes above-mentioned illumination intelligent controller, It further include the control centre's monitor supervision platform being connect with illumination intelligent controller signal.Control centre's monitor supervision platform can be by list Or the mode of map shows that all areas or the operation data of selected part position street lamp, data include electric current, voltage, wattful power The operating status of rate and power factor etc., control centre's monitor supervision platform includes region street lamp normal operation, and whether street lamp fault surpasses Go out allowable range and the identification without states such as electricity and display.
Compared with prior art, the illumination intelligence control system that the utility model embodiment provides can not only effective monitoring And the data such as collection voltages, electric current, power factor, active power, GPRS signals, it can accurately monitor branch switch control road Section street lamp, when occur electric current exceed allowable range value unusual condition when, can target inspection belonging to power transformation box operation conditions and The branch switch controls the lamps and lanterns serviceable condition in section, and the alarm in addition, if power transformation box breaks down can also analyze the case and become pipe The corresponding street lamp operating status in area under one's jurisdiction domain;Simultaneously, additionally it is possible to fault loop is shown in different ways, to different unusual conditions The setting of alarm level is carried out, and quick positioning failure, personnel easy to repair can be quickly found out failure generation on map The time that failure influences is reduced in position.
When practical application, above-mentioned illumination intelligent controller and illumination intelligence control system can also be with the ports Dong Jiang administrative departments " the managing numeralization city system " built is docked, and " managing numeralization city system " is needed to the input number of lighting control system According to being linked into illumination intelligence control system, the areas Shi Gang administrative staff can directly pass through managing numeralization city system platform pair Illumination intelligence control system needs the data supervised and understood, lighting installation operation present situation, electric power personnel to make an inspection tour action etc. It is checked, achievees the purpose that carry out science management and control to the areas Dong Jianggang lighting service facility.
Finally it should be noted that:The above various embodiments is only to illustrate the technical solution of the utility model, rather than limits it System;Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should Understand:It still can be with technical scheme described in the above embodiments is modified, either to which part or whole Technical characteristic carries out equivalent replacement;And these modifications or replacements, this practicality that it does not separate the essence of the corresponding technical solution are new The range of each embodiment technical solution of type.

Claims (8)

1. a kind of illumination intelligent controller, which is characterized in that including intelligent monitoring terminal module, three phase mains, three-phase voltage Acquisition module, three-phase current acquisition module, the first mutual inductor, display and lighting mechanism;
The intelligent monitoring terminal module is acquired with the three phase mains, the three-phase voltage acquisition module, the three-phase current Module, the display and the lighting mechanism are separately connected, and first mutual inductor connects with the three-phase current acquisition module It connects.
2. illumination intelligent controller according to claim 1, which is characterized in that further include branch current acquisition module and The second mutual inductor being connect with the branch current acquisition module;
One end of the branch current acquisition module connect with the intelligent monitoring terminal module, the other end and the lighting mechanism Connection.
3. illumination intelligent controller according to claim 2, which is characterized in that the lighting mechanism includes street lamp, lamp Bar, streetlight control box, street lamp distribution box;
The streetlight control box is connect with the intelligent monitoring terminal module by signal;
The street lamp distribution box is connect with the branch current acquisition module signal;
It is provided with electronic tag on the lamp stand, the information of corresponding street lamp is stored in the electronic tag.
4. illumination intelligent controller according to claim 3, which is characterized in that further include power collection module, it is described The input terminal of power collection module is connect with the streetlight control box, the power collection module output end and the intelligent monitoring Terminal module connects.
5. illumination intelligent controller according to claim 1, which is characterized in that further include remote monitoring host, it is described Remote monitoring host is configured with geography information module, and the geography information module connects with the intelligent monitoring terminal module by signal It connects;
The remote monitoring host can be used in showing fault loop, positioning and analyze failure and the alarm of publication interface, voice reporting Alert or SMS alarm.
6. illumination intelligent controller according to claim 1 or 5, which is characterized in that first mutual inductor is exchange Current transformer;
First mutual inductor includes output ratio 200A/100mA mutual inductors or 300A/100mA mutual inductors.
7. illumination intelligent controller according to claim 2, which is characterized in that second mutual inductor is alternating current Mutual inductor;
Second mutual inductor includes output ratio 100A/40mA mutual inductors.
8. a kind of illumination intelligence control system, which is characterized in that illuminate intelligent control including claim 1-7 any one of them Device further includes the control centre's monitor supervision platform being connect with the illumination intelligent controller signal.
CN201721868554.9U 2017-12-28 2017-12-28 A kind of illumination intelligent controller and system Active CN207911093U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108055751A (en) * 2017-12-28 2018-05-18 天津港东疆建设开发有限公司 A kind of illumination intelligent controller and system
CN111465156A (en) * 2020-03-27 2020-07-28 山东华方智联科技股份有限公司 Street lamp loop leakage detection system
CN111474495A (en) * 2020-04-01 2020-07-31 山东华方智联科技股份有限公司 Street lamp loop detection system based on edge gateway

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108055751A (en) * 2017-12-28 2018-05-18 天津港东疆建设开发有限公司 A kind of illumination intelligent controller and system
CN111465156A (en) * 2020-03-27 2020-07-28 山东华方智联科技股份有限公司 Street lamp loop leakage detection system
CN111465156B (en) * 2020-03-27 2023-06-16 山东华方智联科技股份有限公司 Street lamp circuit leakage detection system
CN111474495A (en) * 2020-04-01 2020-07-31 山东华方智联科技股份有限公司 Street lamp loop detection system based on edge gateway

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