CN102196636A - Centralized control circuit of light-emitting diode (LED) street lamp - Google Patents
Centralized control circuit of light-emitting diode (LED) street lamp Download PDFInfo
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- CN102196636A CN102196636A CN2011100642936A CN201110064293A CN102196636A CN 102196636 A CN102196636 A CN 102196636A CN 2011100642936 A CN2011100642936 A CN 2011100642936A CN 201110064293 A CN201110064293 A CN 201110064293A CN 102196636 A CN102196636 A CN 102196636A
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Abstract
The invention provides a centralized control circuit of a light-emitting diode (LED) street lamp. The centralized control circuit comprises a microprocessor circuit, an ambient brightness measuring circuit, a three-phase current detecting circuit, a power line carrier communication circuit, a street lamp subcontroller, a serial port circuit and a power supply circuit, wherein the microprocessor circuit is connected with the ambient brightness measuring circuit and is used for acquiring ambient brightness detecting data of a street and generating a corresponding street lamp control command; the microprocessor circuit is connected with the three-phase current detecting circuit and is used for acquiring connecting and disconnecting data of a three-phase power line so as to select the power line for power line carrier communication; the microprocessor circuit is connected with the power line carrier communication circuit and is used for acquiring street lamp data and sending the street lamp control command; the power line carrier communication circuit is connected with the street lamp subcontroller and is used for acquiring the street lamp data and executing the street lamp control command; and the microprocessor circuit is connected with the serial port circuit and is used for providing a communication interface of peripheral equipment. The circuit has the advantages of energy conservation, consumption reduction, reliable performance and stable working.
Description
Technical field
The present invention relates to a kind of streetlight control circuit, relate in particular to a kind of LED street lamp centralized control circuit.
Background technology
Be accompanied by the fast development of city illumination and city lighting illuminating engineering, it is big that urban road street lighting scale also becomes thereupon, how efficiently to manage the city street lamp system and just become more and more important; Traditional controller for road lamp only can be realized simple timing switch control and control manually, its shortcoming is and can not monitors in real time the electricity consumption situation, can not the remote centralized management control, can't feed back failure condition, make associated maintenance department in time carry out troubleshooting of faults and processing, simultaneously, because managerial inconvenience, caused the huge waste in manpower and materials aspect, and the efficiency of management is also very low; The transitional street lamps Centralized Controller mainly exists power carrier along with the growth communication performance of command range becomes unstable, can not also have shortcomings such as power interface is too complicated, the circuit autgmentability is not strong fully according to actual environment brilliance control road lamp switch.
For this reason, people are seeking a kind of desirable technical solution always.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, a kind of design science, energy-saving and cost-reducing, dependable performance, working stability, LED street lamp centralized control circuit that cost performance is high are provided.
The technical solution adopted in the present invention is as follows: a kind of LED street lamp centralized control circuit, and it comprises microcontroller circuit, ambient brightness measuring circuit, three-phase electricity testing circuit, power carrier communication circuit, street lamp sub-controller, serial port circuit and power circuit; Wherein, described microcontroller circuit connects described ambient brightness measuring circuit and is used to gather road environment brightness and detects data and produce corresponding street lamp control command; Described microcontroller circuit connects that described three-phase electricity testing circuit is used to gather street lamp three-phase power circuit break-make data so that select the power carrier communication power circuit; Described microcontroller circuit connects described power carrier communication circuit and is used to obtain the street lamp data and sends the street lamp control command; Described power carrier communication circuit connects described street lamp sub-controller by the selected power carrier communication power circuit of microcontroller circuit and is used to gather the street lamp data and carries out the street lamp control command; Described microcontroller circuit connects described serial port circuit so that the ancillary equipment communication interface to be provided; Described power circuit connects described microcontroller circuit, described ambient brightness measuring circuit, described three-phase electricity testing circuit, described power carrier communication circuit, described serial port circuit respectively so that working power to be provided.
The relative prior art of the present invention has outstanding substantive distinguishing features and marked improvement, specifically, control be concentrated, effectively be managed to this circuit can effectively to a large amount of street lamps, not only can realize the collecting work of switch control, fault detect, street lamp loop electrical quantity, and can feed back to control centre to relevant parameter and fault by wireless or wired mode, make the user monitor the working condition and the state of each street lamp at any time, the failure judgement point is in time safeguarded fast; This circuit not only can save limited human resources, and can improve the efficiency of management of whole street lamp engineering, also energy savings more.
Description of drawings
Fig. 1 is a structured flowchart of the present invention;
Fig. 2 is the circuit theory diagrams of described microcontroller circuit;
Fig. 3 is the circuit theory diagrams of described ambient brightness measuring circuit;
Fig. 4 is the circuit theory diagrams of described power carrier communication circuit;
Fig. 5 is the circuit theory diagrams of described serial port circuit;
Fig. 6 is the circuit theory diagrams of described power circuit testing circuit;
Fig. 7 is the circuit theory diagrams of described power circuit.
Embodiment
Below by embodiment, technical scheme of the present invention is described in further detail.
As shown in Figure 1, a kind of LED street lamp centralized control circuit, it comprises microcontroller circuit, ambient brightness measuring circuit, three-phase electricity testing circuit, power carrier communication circuit, street lamp sub-controller, serial port circuit and power circuit; Wherein, described microcontroller circuit connects described ambient brightness measuring circuit and is used to gather road environment brightness and detects data and produce corresponding street lamp control command; Described microcontroller circuit connects that described three-phase electricity testing circuit is used to gather street lamp three-phase power circuit break-make data so that select the power carrier communication power circuit; Described microcontroller circuit connects described power carrier communication circuit and is used to obtain the street lamp data and sends the street lamp control command; Described power carrier communication circuit connects described street lamp sub-controller by the selected power carrier communication power circuit of microcontroller circuit and is used to gather the street lamp data and carries out the street lamp control command; Described microcontroller circuit connects described serial port circuit so that the ancillary equipment communication interface to be provided; Described power circuit connects described microcontroller circuit, described ambient brightness measuring circuit, described three-phase electricity testing circuit, described power carrier communication circuit, described serial port circuit respectively so that working power to be provided; Described street lamp sub-controller is used to control switch, the luminance state of single street lamp, can realize the electrodeless light modulation of LED street lamp, and the street lamp state that detects, feed back to street lamp centralized control circuit by power carrier communication, and can accept the control of street lamp centralized control circuit, preserve the illumination scheme of oneself; Described street lamp sub-controller belongs to prior art.
Based on above-mentioned, according to actual needs, described serial port circuit is connected with the GPRS module so that realize long-distance radio communication, also can connect electric energy meter so that realize electrical energy data acquiring, also can connect host computer so that carry out operations such as program is provided with.
Based on above-mentioned, as shown in Figure 2, it is the technical grade ARM9 process chip U1 of AT91RM9200 that described microcontroller circuit adopts model, and this chip has been widely used in the various industrial control systems; Characteristics such as the major function of described microcontroller circuit is to obtain various types of sampled datas, carries out data analysis and handles, and the street lamp sub-controller is carried out centralized control, and it has stable performance, and peripheral circuit is simple;
It is wide that ARM9 process chip U1 has operating ambient temperature range, anti-interference is good, characteristics such as expanded function is strong, has 64MB SDRAM, 8MB NOR FLASH, 128MB NAND FLASH, has the 10M/100Mbps Ethernet, 8 USART serial ports, 1 full duplex standard serial port, can solve all serial communication problems, and have 1 USB HOST interface, 1 USB Device interface, and have 3 SPI, 1 IIC communication interface, can be by 3 PWM mouths of hardware controls, 36 standard I/O controls, plate carries the RTC real-time clock, system power dissipation 750mw, working temperature-40～85 ℃; Embedded flush type LINUX 2.6 operating systems have complete ICP/IP protocol and background program support, perfect FLASH file system, and powerful driver support is so have great advantage aspect data acquisition process, the commercial Application.
The peripheral control circuit of ARM9 process chip U1 comprises RTC real time clock circuit, reset circuit, LED indicating circuit and keyboard circuit, and function provides a series of protection and operation-interface.
Based on above-mentioned, as shown in Figure 3, it is the sensor chip U4 of TSL2561 that described ambient brightness measuring circuit adopts model; Sensor chip U4 is the novel environmental luminance sensor, and precision can reach the human eye level and detect, and the accuracy of detection height, wide ranges, and speed is fast, and is low in energy consumption, and its function is to detect data for microcontroller circuit provides the road environment brightness of high accurancy and precision; Sensor chip U4 is that the model that TAOS company releases is the transducer of TSL2561, this chip is the light intensity sensor chip of a kind of high speed, low-power consumption, wide-range, flexible configuration able to programme, its feature is: lower threshold value on the luminous intensity of programmable configuration permission provides interrupt signal when actual light illumination surpasses this threshold value; The standard compliant I2C bus protocol of numeral output; Analog gain and the control able to programme of digital output time; Package dimension is extra small, and under the low-power consumption mode, power consumption is 0.75MW, and suppresses the illumination fluctuation of 50HZ/60HZ automatically; This chip can reflect current light intensity brightness accurately, and microcontroller circuit can pass through these data, the current state of accurate Calculation management street lamp, make corresponding action, and, control the switching time of street lamp more accurately by some data algorithms, saved electric energy to greatest extent.
Based on above-mentioned, as shown in Figure 4, described power carrier communication circuit adopts BWP10A series power carrier module U6; This module performance is stable, and interface is simple, and communication distance is greater than 500m, is provided with easyly, and can set multiple baud rate work, and its function is to provide the power carrier communication interface for the core control board; This module 12V direct current supply, 100bps～600bps is adjustable for the carrier wave baud rate, adopts the Transistor-Transistor Logic level serial line interface, can directly be connected with single-chip microcomputer RXD, TXD end, can set up baud rate on their own by the user: 1200bps, 2400bps, 4800bps, 9600bps; This power carrier module can be at 220/110V, realizes the local communication on the 50/60Hz power line, can freely dispose data communication pattern on the power line; This module provides the transparent data transmission channel for the user, adopts the spread spectrum coding mode, and antijamming capability is strong, long transmission distance, and transfer of data is reliable; Under same transformer, a plurality of these modules can be connected on the same power line, and under the master-slave communication pattern, module works independently respectively, can not influence each other.
Based on above-mentioned, as shown in Figure 5, serial port communication chip and model that it is MAX3232 that described serial port circuit adopts 3 models are the serial port communication chip of SN75176; Adopt the U.S. letter technical grade 3.3V of company serial port chip MAX3232, this chip operation temperature range is wide, stable and reliable for performance, is the 3.3V power supply with microcontroller circuit, does not have the level conversion problem, can well be operated in the 3.3V system.
Based on above-mentioned, as shown in Figure 6, described three-phase electricity testing circuit comprises three road power circuit testing circuits, and described power circuit testing circuit comprises photoelectrical coupler U5, triode Q1, triode Q2, diode D9, resistance R 16, resistance R 17, resistance R 18, resistance R 19, resistance R 20, resistance R 21, resistance R 22 and capacitor C 16;
Wherein, the positive input terminal of described photoelectrical coupler U5 connects described diode D9 negative pole and described resistance R 21 1 ends respectively, the negative input end of described photoelectrical coupler U5 connects anodal and described capacitor C 16 1 ends of described diode D9 respectively, described resistance R 21 other ends connect described resistance R 22 1 ends, described resistance R 22 other ends connect described capacitor C 16 other ends, and described capacitor C 16 two ends are used to connect power circuit; Described resistance R 16 1 ends connect the collector electrode of described triode Q1, the base stage of described triode Q1 connects described resistance R 17 1 ends, described resistance R 17 other ends and described resistance R 18 1 ends are connected the collector electrode of described triode Q2 respectively, the emitter of described triode Q1 connects the emitter of described triode Q2, the emitter of described triode Q2 connects described resistance R 19 1 ends, described resistance R 19 other end ground connection, the base stage of described triode Q2 connects described resistance R 20 1 ends, described resistance R 20 other end ground connection, the emitter of described photoelectrical coupler U5 connects the base stage of described triode Q2, the collector electrode of described photoelectrical coupler U5, described resistance R 16 other ends are connected the 3.3V power supply respectively with described resistance R 18 other ends; The collector electrode of described triode Q1 is used for output power wireline inspection signal.
This power circuit testing circuit is that the photoelectrical coupler U5 of PC817 and triode that two models are MMBT2222A constitute zero cross detection circuit by model; Photoelectrical coupler U5 is the simulation optocoupler, can reflect the Changing Pattern of alternating current; If have under the situation of alternating current, the conducting by photoelectrical coupler U5, end, export the high-low level signal, thereby reflect the time of zero crossing and the situation that alternating current is connected;
This three-phase electricity testing circuit adopts the zero passage detection mode to detect the break-make situation of three-phase electricity, if a certain not work mutually, what microcontroller circuit received is a normal low level; If operate as normal, what then microcontroller circuit received is to be the square wave of 50HZ for frequency; Microcontroller circuit proposes corresponding fault detection analysis result according to the level data that detects.
Based on above-mentioned, as shown in Figure 7, described power circuit comprises three road power circuit power supply circuits and integrated stable voltage circuits, and the output of three road power circuit power supply circuits connects the input of integrated stable voltage circuit respectively;
Described power circuit power supply circuits comprise thermistor R7, piezo-resistance R8, resistance R 9, transformer T3, rectifier bridge D5 and diode D6, wherein, described thermistor R7 one end connects described transformer T3 one primary side, the two ends of described piezo-resistance R8, the two ends of described resistance R 9 are connected in parallel on described transformer T3 two primary sides respectively, described transformer T3 two secondary ends connect two inputs of described rectifier bridge D5 respectively, the output of described rectifier bridge D5 connects the positive pole of described diode D6, described another output head grounding of rectifier bridge D5, the negative pole of described diode D6 is used to connect the input of described integrated stable voltage circuit, and the described thermistor R7 other end is used to be connected power circuit with described another primary side of transformer T3;
Described integrated stable voltage circuit comprises 12V voltage stabilizing circuit, 5V voltage stabilizing circuit and 3.3V voltage stabilizing circuit, the voltage output end of described 12V voltage stabilizing circuit connects the voltage input end of described 5V voltage stabilizing circuit, and the voltage output end of described 5V voltage stabilizing circuit connects the voltage input end of described 3.3V voltage stabilizing circuit; The negative pole of described diode D6 connects the voltage input end of described 12V voltage stabilizing circuit.
Described power circuit adopts three isolated supply power modes to power, no matter the user connects any phase of alternating current, two-phase or three-phase, this power circuit all can produce operating voltage; Power circuit can be exported DC3.3V, DC5V and DC12V direct current respectively, so that provide supply power voltage for entire circuit.
Described power circuit provides working power for LED street lamp centralized control circuit, and its quality is related to the stability of whole system work; In design, this circuit adopts the linear transformer transformation, carry out rectification by rectifier bridge again, civil power 220V is converted into the 15V Rectified alternating current, adopts high-quality electric capacity, inductance to carry out filtering, and then by integrated voltage stabilizing chip output 12V, 5V operating voltage, and on circuit, adopted transformer prime protective circuit, this protective circuit prevents that voltage, electric current are excessive under the situation of load short circuits or switching on and shutting down, play the effect of protection transformer; Power circuit adopts the linear transformer of 15V/800MA, and power output can reach 12W, and the separately design of 5V/12V power supply circuits, reduces each other and disturbs.
LED street lamp centralized control system is intelligent, multi-functional centralized management control system, and it mainly is made up of central database management software, street lamp centralized control circuit etc.; Wherein, the central database management software is installed in the PC of control centre end, be used for long-range monitoring and management to each street lamp state, software can realize that remote status reads, fault pre-alarming, each Centralized Controller grouping management, single fluorescent tube reason, illumination scheme is set and is issued, and current electrical quantity reads, functions such as electrical quantity statistics.
Street lamp centralized control circuit can be connected with center software is long-range by expansion GPRS wireless communication module or by network layout, realizes information mutual communication, accepts the setting and the inquiry of center software; Carry out communication and control by power line carrier module and street lamp sub-controller, read the sub-state of a control of street lamp, report center software, and can extend out power electric meter, read this branch road electrical quantity to reach, calculate functions such as branch power, efficient, voltage, electric current; Receive to carry out illumination scheme, and,, carry out self adaptation and regulate, reached optimum management by actual conditions according to the sampled data of each transducer; Streetlight control circuit can carry out active inquiry to sub-controller, detects sub-state of a control, if find fault, can initiatively report center software.
In sum, the alternative controller for road lamp in the past of LED street lamp centralized control system, save a large amount of manpower and materials, can manage the road lamp system of entire city concentratedly, accomplish fault trace early warning timely and maintenance, and the setting by illumination scheme, reasonable use road lighting resource, energy savings to greatest extent more.
Claims (10)
1. LED street lamp centralized control circuit, it is characterized in that: this LED street lamp centralized control circuit comprises microcontroller circuit, ambient brightness measuring circuit, three-phase electricity testing circuit, power carrier communication circuit, street lamp sub-controller, serial port circuit and power circuit; Wherein, described microcontroller circuit connects described ambient brightness measuring circuit and is used to gather road environment brightness and detects data and produce corresponding street lamp control command; Described microcontroller circuit connects that described three-phase electricity testing circuit is used to gather street lamp three-phase power circuit break-make data so that select the power carrier communication power circuit; Described microcontroller circuit connects described power carrier communication circuit and is used to obtain the street lamp data and sends the street lamp control command; Described power carrier communication circuit connects described street lamp sub-controller by the selected power carrier communication power circuit of microcontroller circuit and is used to gather the street lamp data and carries out the street lamp control command; Described microcontroller circuit connects described serial port circuit so that the ancillary equipment communication interface to be provided; Described power circuit connects described microcontroller circuit, described ambient brightness measuring circuit, described three-phase electricity testing circuit, described power carrier communication circuit, described serial port circuit respectively so that working power to be provided.
2. LED street lamp centralized control circuit according to claim 1 is characterized in that: described serial port circuit is connected with the GPRS module so that realize long-distance radio communication.
3. LED street lamp centralized control circuit according to claim 1 and 2 is characterized in that: described serial port circuit is connected with electric energy meter so that realize electrical energy data acquiring.
4. LED street lamp centralized control circuit according to claim 1 is characterized in that: it is the technical grade ARM9 process chip of AT91RM9200 that described microcontroller circuit adopts model.
5. LED street lamp centralized control circuit according to claim 1 is characterized in that: it is the sensor chip of TSL2561 that described ambient brightness measuring circuit adopts model.
6. LED street lamp centralized control circuit according to claim 1 is characterized in that: described power carrier communication circuit adopts BWP10A series power carrier module.
7. LED street lamp centralized control circuit according to claim 1 is characterized in that: serial port communication chip and model that described serial port circuit employing model is MAX3232 are the serial port communication chip of SN75176.
8. LED street lamp centralized control circuit according to claim 1, it is characterized in that: described three-phase electricity testing circuit comprises three road power circuit testing circuits, and described power circuit testing circuit comprises photoelectrical coupler U5, triode Q1, triode Q2, diode D9, resistance R 16, resistance R 17, resistance R 18, resistance R 19, resistance R 20, resistance R 21, resistance R 22 and capacitor C 16;
Wherein, the positive input terminal of described photoelectrical coupler U5 connects described diode D9 negative pole and described resistance R 21 1 ends respectively, the negative input end of described photoelectrical coupler U5 connects anodal and described capacitor C 16 1 ends of described diode D9 respectively, described resistance R 21 other ends connect described resistance R 22 1 ends, described resistance R 22 other ends connect described capacitor C 16 other ends, and described capacitor C 16 two ends are used to connect power circuit;
Described resistance R 16 1 ends connect the collector electrode of described triode Q1, the base stage of described triode Q1 connects described resistance R 17 1 ends, described resistance R 17 other ends and described resistance R 18 1 ends are connected the collector electrode of described triode Q2 respectively, the emitter of described triode Q1 connects the emitter of described triode Q2, the emitter of described triode Q2 connects described resistance R 19 1 ends, described resistance R 19 other end ground connection, the base stage of described triode Q2 connects described resistance R 20 1 ends, described resistance R 20 other end ground connection, the emitter of described photoelectrical coupler U5 connects the base stage of described triode Q2, the collector electrode of described photoelectrical coupler U5, described resistance R 16 other ends are connected the 3.3V power supply respectively with described resistance R 18 other ends; The collector electrode of described triode Q1 is used for output power wireline inspection signal.
9. LED street lamp centralized control circuit according to claim 1, it is characterized in that: described power circuit comprises three road power circuit power supply circuits and integrated stable voltage circuits, and the output of three road power circuit power supply circuits connects the input of described integrated stable voltage circuit respectively;
Described power circuit power supply circuits comprise thermistor R7, piezo-resistance R8, resistance R 9, transformer T3, rectifier bridge D5 and diode D6, wherein, described thermistor R7 one end connects described transformer T3 one primary side, the two ends of described piezo-resistance R8, the two ends of described resistance R 9 are connected in parallel on described transformer T3 two primary sides respectively, described transformer T3 two secondary ends connect two inputs of described rectifier bridge D5 respectively, the output of described rectifier bridge D5 connects the positive pole of described diode D6, described another output head grounding of rectifier bridge D5, the negative pole of described diode D6 is used to connect the input of described integrated stable voltage circuit, and the described thermistor R7 other end is used to be connected power circuit with described another primary side of transformer T3.
10. LED street lamp centralized control circuit according to claim 9, it is characterized in that: described integrated stable voltage circuit comprises 12V voltage stabilizing circuit, 5V voltage stabilizing circuit and 3.3V voltage stabilizing circuit, the voltage output end of described 12V voltage stabilizing circuit connects the voltage input end of described 5V voltage stabilizing circuit, and the voltage output end of described 5V voltage stabilizing circuit connects the voltage input end of described 3.3V voltage stabilizing circuit; The negative pole of described diode D6 connects the voltage input end of described 12V voltage stabilizing circuit.
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| CN 201110064293 CN102196636B (en) | 2011-03-17 | 2011-03-17 | Centralized control circuit of light-emitting diode (LED) street lamp |
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| CN 201110064293 CN102196636B (en) | 2011-03-17 | 2011-03-17 | Centralized control circuit of light-emitting diode (LED) street lamp |
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| CN102196636A true CN102196636A (en) | 2011-09-21 |
| CN102196636B CN102196636B (en) | 2013-10-02 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102724791A (en) * | 2012-04-28 | 2012-10-10 | 苏州工业园区和昕国际新能源有限公司 | Intelligent carrier remote drive and control system for light emitting diode (LED) lighting |
| CN103313463A (en) * | 2013-02-20 | 2013-09-18 | 苏州经贸职业技术学院 | Road lamp control system based on power line carrier communication |
| CN103391672A (en) * | 2013-08-12 | 2013-11-13 | 铜陵学院 | Single lamp control device for remote measurement and control |
| CN108089829A (en) * | 2017-12-04 | 2018-05-29 | 哈尔滨学院 | By computer management based on GPRS large scale display systems and method |
| CN108895956A (en) * | 2018-04-04 | 2018-11-27 | 成都众宜天成科技有限公司 | It is a kind of can straight cutting alternating current operation paint coating thickness measuring instrument |
| CN109444768A (en) * | 2018-12-27 | 2019-03-08 | 山东蓝孚高能物理技术股份有限公司 | A kind of x-ray irradiation instrument high-voltage DC power supply test device |
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| CN201986231U (en) * | 2011-03-17 | 2011-09-21 | 生茂光电科技股份有限公司 | Centralized control circuit of LED (light-emitting diode) streetlamp |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102724791A (en) * | 2012-04-28 | 2012-10-10 | 苏州工业园区和昕国际新能源有限公司 | Intelligent carrier remote drive and control system for light emitting diode (LED) lighting |
| CN103313463A (en) * | 2013-02-20 | 2013-09-18 | 苏州经贸职业技术学院 | Road lamp control system based on power line carrier communication |
| CN103391672A (en) * | 2013-08-12 | 2013-11-13 | 铜陵学院 | Single lamp control device for remote measurement and control |
| CN108089829A (en) * | 2017-12-04 | 2018-05-29 | 哈尔滨学院 | By computer management based on GPRS large scale display systems and method |
| CN108895956A (en) * | 2018-04-04 | 2018-11-27 | 成都众宜天成科技有限公司 | It is a kind of can straight cutting alternating current operation paint coating thickness measuring instrument |
| CN109444768A (en) * | 2018-12-27 | 2019-03-08 | 山东蓝孚高能物理技术股份有限公司 | A kind of x-ray irradiation instrument high-voltage DC power supply test device |
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