CN103216771A - Light-emitting diode (LED) street lamp based on wireless sensor network and temperature adjustment method of same - Google Patents
Light-emitting diode (LED) street lamp based on wireless sensor network and temperature adjustment method of same Download PDFInfo
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- CN103216771A CN103216771A CN2013101501347A CN201310150134A CN103216771A CN 103216771 A CN103216771 A CN 103216771A CN 2013101501347 A CN2013101501347 A CN 2013101501347A CN 201310150134 A CN201310150134 A CN 201310150134A CN 103216771 A CN103216771 A CN 103216771A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Abstract
Disclosed is a light-emitting diode (LED) street lamp based on a wireless sensor network and a temperature adjustment method of the LED street lamp based on the wireless sensor network. The LED street lamp based on the wireless sensor network and the temperature adjustment method of the LED street lamp based on the wireless sensor network is suitable for public lighting of both sides of a street, and comprises an LED street lamp body. A temperature sensor is installed inside the LED street lamp body; an air velocity sensor is installed outside the LED street lamp body; ARM 9 single chip microcomputers are respectively connected on the temperature sensor and the air velocity sensor through an analog / digital (A/D) converter; a power adjustment module and an RS232 interface are respectively connected on the ARM 9 micro control unit; the power adjustment module is connected with the LED street lamp body; a sensor node is connected on the RS232 interface; the sensor node comprises the micro control unit connected with the RS232; and a wireless chip and a PCB antenna are sequentially connected on the micro control unit. The LED street lamp based on the wireless sensor network is simple in structure and long in service life.
Description
Technical field
The present invention relates to a kind of intelligent LED street lamp and adjusting temperature methods, be particularly useful for the public illumination of road both sides and use based on wireless sensor network.
Technical background
Street lamp is the important component part of city illumination, and traditional street lamp often adopts high-pressure mercury lamp, but its light loss has caused the huge waste of the energy greatly.Current, global environment is going from bad to worse, and each state is all at the development clean energy resource.And along with the rapid growth of national economy, China's energy supply and demand contradiction is outstanding day by day, the coming into existence situation of critical shortage of supply of electric power, and energy-conservation is present institute urgent problem.Therefore, development of new is efficient, energy-conservation, the life-span is long, colour rendering index is high, the LED street lamp of environmental protection has a crucial meaning to city illumination is energy-conservation.
The LED lighting engineering has characteristics such as energy-saving and environmental protection, the life-span is long, volume is little as light source technology of new generation, can be widely used in fields such as various indications, demonstration, decoration, backlight, general lighting and urban landscape.
Yet the theoretical life-span of LED bulb is the test data in certain temperature range, and the heat that the LED fluorescent tube of dense arrangement is distributed in luminescence process is huge.When appearance was overheated, the LED life-span can significantly reduce, and sudden damage easily takes place.And when temperature was too high, the LED light decay can increase, and the brightness meeting reduces.Experimental results show that: when temperature surpasses 60 degrees centigrade, every rising 5 degree of LED operating temperature, the LED light decay can increase by 10%, and under the normal condition, the LED operating temperature should be controlled at below 60 degrees centigrade, could guarantee the service life more than 50,000 hours.Therefore, how to reduce the key that node temperature has just become to guarantee the led light source reliably working life-span.
At present, the LED street lamp adopts the lamp housing of conventional street lamp to convert basically both at home and abroad, and for this reason, the someone proposes to add heat sink and distributes fast so that the LED fluorescent tube is produced heat on lamp housing, thereby reaches the effect of protection LED street lamp.Yet be subjected to the restriction of streetlamp housing body volume, the volume that is used for the LED radiator can not be very big, so heat conductivility is low, the heat that led light source produces can not directly be derived by lamp housing fast.Also have some to propose employing temperature sensor monitors LED bulb temperature, thus the input power of control LED, to reach the purpose of real-time control LED light temperature.If yet temperature is too high at one time for adjacent several street lamps, so promptly occur certain stretch easily and continue dark, can have a strong impact on the normal operation of traffic like this, also increased the incidence of accident simultaneously.And because affected by environment, Influences on Wind Velocity particularly, temperature sensor is actual, and to record temperature on the low side, thereby can not well play the effect of protection led chip.
Summary of the invention
Goal of the invention: at the deficiencies in the prior art, a kind of duty that can not only monitor and control single led street lamp in real time is provided, and can coordinates the intelligent LED street lamp and the adjusting temperature methods based on wireless sensor network of the duty between each street lamp by wireless sensor network.
Technical scheme: in order to realize the foregoing invention purpose, the technical solution adopted in the present invention is:
It comprises the LED road lamp body, in the described LED road lamp body temperature sensor is installed, the LED road lamp body is equipped with air velocity transducer outward, described temperature sensor and air velocity transducer are connected with the ARM9 single-chip microcomputer by A/D converter respectively, be connected with power conditioning module and RS232 interface on the ARM9 single-chip microcomputer respectively, power conditioning module is connected with the LED road lamp body, the RS232 interface is connected with sensor node, described sensor node comprises the single-chip microcomputer that links to each other with the RS232 interface, single-chip microcomputer be linked in sequence wireless chip and PCB antenna.Described single-chip microcomputer model is MSP43F1611, and the wireless chip model is CC2420.
A kind of adjusting temperature methods of the intelligent LED street lamp based on wireless sensor network comprises the steps:
A., the temperature preset value is set, and the preset value that sets in advance LED street lamp temperature according to operating position is T
1And T
2, preset value T wherein
1Be the highest critical value of LED street lamp operate as normal, preset value T
2Be the back maximum temperature value that starts once more of street lamp of lowering the temperature;
B.LED street lamp unlatching work, temperature sensor and air velocity transducer detect the temperature of LED street lamp and wind speed on every side simultaneously, and the information that will detect sends to the ARM9 single-chip microcomputer by A/D converter respectively, the ARM9 single-chip microcomputer compensates measuring and calculating with temperature information and the wind speed information that receives, obtain the temperature correction value of LED street lamp, the ARM9 single-chip microcomputer is with temperature correction value and preset value T
1Compare, be lower than preset value T as measuring the temperature correction value
1The time, then the ARM9 single-chip microcomputer sends return instruction, control temperature sensor and air velocity transducer once more to the temperature of LED street lamp and on every side wind speed detect;
Electric current when c. setting LED street lamp operate as normal is first pattern, and half electric current when setting LED street lamp operate as normal is second pattern, and 1/3rd electric currents are three-mode when setting LED street lamp operate as normal,
The temperature correction value that detects this LED street lamp when the ARM9 of certain LED street lamp single-chip microcomputer is higher than preset value T
1The time, this ARM9 single-chip microcomputer reads the state of temperature data of three adjacent with relative LED street lamps by sensor node, if when three adjacent with relative LED street lamps all were operated in first pattern, this ARM9 Single-chip Controlling power conditioning module was closed this LED street lamp, lowers the temperature;
When adjacent and opposing L ED street lamp all were operated in second pattern, this ARM9 Single-chip Controlling power conditioning module reduced input current, makes this LED street lamp be operated in three-mode, lowers the temperature;
When having street lamp to be operated in three-mode in adjacent and the opposing L ED street lamp, this ARM9 Single-chip Controlling power conditioning module reduces input current, makes this LED street lamp be operated in second pattern, lowers the temperature;
D. lower the temperature after half an hour, this ARM9 single-chip microcomputer is extrapolated the temperature correction value of current this LED street lamp by temperature sensor and air velocity transducer, and judges whether the temperature correction value is lower than preset value T
2, if be lower than preset value T
2, then this ARM9 Single-chip Controlling LED street lamp reopens and makes this LED street lamp operate as normal; Otherwise continue recycle ratio and calculate temperature correction value and preset value T
2, be lower than preset value T up to measuring and calculating temperature correction value
2Open this LED street lamp again and make its operate as normal.
Beneficial effect: the design's intelligent LED street lamp and adjusting temperature methods based on wireless sensor network, be provided with the temperature sensor and the air velocity transducer that are installed on the LED street lamp, by measuring the Current Temperatures of LED street lamp, single-chip microcomputer can calculate the temperature correction value according to air velocity transducer simultaneously, according to this status adjustment input power, thereby the LED street lamp is protected; The LED street lamp is provided with wireless sensor node, can intercom mutually between each LED street lamp, and obtain the working condition of peripheral LED street lamp, when single led street lamp temperature is too high, control module can be according to the input power of the suitable adjustment LED of the LED street lamp duty of periphery, when street lamp is operated in first pattern, then close this street lamp on every side; When street lamp is operated in second level pattern entirely on every side, then adjust this street lamp input power and make it be operated in three-mode, make its fast cooling; When around when having street lamp to be operated in three-mode, then adjust this street lamp input power and make it be operated in second pattern, can make the street lamp cooling can guarantee illumination again.Adopt this mode can not only guarantee the life-span of single led street lamp like this, also can guarantee the normal operation of whole LED road lamp system simultaneously.
Description of drawings
Fig. 1 is the road lamp system Principle of Communication figure of stretch
Fig. 2 is the sensor node schematic diagram
Fig. 3 is the theory diagram of single street lamp
Fig. 4 is the program flow diagram that street lamp intelligence is regulated power
The specific embodiment:
Below in conjunction with figure specific embodiments of the present invention is described:
As shown in Figure 1, on each LED road lamp body shell, a wireless sensor node is housed, constitutes the sensor network of road lamp system thus.Because the clinodiagonal street lamp illumination of single street lamp is very little to its influence, so do not consider their influences to this street lamp, each LED street lamp is only communicated by letter with the sensor node on the LED street lamp on two LED street lamps of homonymy around it and opposite, for example, for LED street lamp 2 among the figure, do not consider LED street lamp 5,7 influences to it, and only consider adjacent LED street lamp 1, LED street lamp 3, LED street lamp 5 is to its influence, also be 2 of sensor nodes and adjacent sensor node 1, sensor node 2, communicate between the sensor node 3, obtain LED street lamp 1, LED street lamp 3, LED street lamp 5 current working state.By distributing for each sensor node unique ID number, can realize the selective communication between the sensor node.At first whether the node ID number of judgment data bag the inside is ID number of adjacent node when wireless sensor node receives the packet that other nodes send, if the useful information of read data packet the inside and it is transferred to control module then, if not then abandoning this packet.
As shown in Figures 2 and 3, intelligent LED street lamp based on wireless sensor network of the present invention comprises the LED road lamp body, it is characterized in that: in the described LED road lamp body temperature sensor is installed, the LED road lamp body is equipped with air velocity transducer outward, described temperature sensor and air velocity transducer are connected with the ARM9 single-chip microcomputer by A/D converter respectively, be connected with power conditioning module and RS232 interface on the ARM9 single-chip microcomputer respectively, power conditioning module is connected with the LED road lamp body, the RS232 interface is connected with sensor node, described sensor node comprises the single-chip microcomputer that links to each other with the RS232 interface, single-chip microcomputer be linked in sequence wireless chip and PCB antenna, described single-chip microcomputer model is MSP43F1611, and the wireless chip model is CC2420; Wherein, wireless chip CC2420 and PCB antenna be used for and other wireless sensor nodes between communicate, receive the work state information of street lamp that will be contiguous, and this information stored; The MSP430F1611 single-chip microcomputer then reads the duty of this street lamp by the RS232 interface, with the work state information and the self ID number packing of this street lamp, send by CC2420 and PCB antenna then.
The RS232 interface is used for LED street lamp current working state is sent to wireless sensor node on this street lamp.Temperature sensor and air velocity transducer are measured the temperature of current LED street lamp and the wind speed of environment respectively; Because the wind speed of current environment can have influence on the accuracy of the temperature value of temperature sensor measurement, therefore an air velocity transducer is installed on street lamp again measures current wind speed.Temperature sensor and air velocity transducer are measured current temperature value and wind speed respectively, convert digital data transmission to through analog-digital converter then and give single-chip microcomputer, single-chip microcomputer calculates wind speed to Temperature Influence according to the program of finishing writing, according to this influence temperature value measured is compensated then, obtain the correction value of Current Temperatures, then with correction value and preset temperature value T
1Compare, reduce the input power of corresponding LED according to temperature control power conditioning module.
As shown in Figure 4, a kind of adjusting temperature methods of the intelligent LED street lamp based on wireless sensor network comprises the steps:
A., the temperature preset value is set, and the preset value that sets in advance LED street lamp temperature according to operating position is T
1And T
2, preset value T wherein
1Be the highest critical value of LED street lamp operate as normal, preset value T
2Be the back maximum temperature value that starts once more of street lamp of lowering the temperature;
B.LED street lamp unlatching work, temperature sensor and air velocity transducer detect the temperature of LED street lamp and wind speed on every side simultaneously, and the information that will detect sends to the ARM9 single-chip microcomputer by A/D converter respectively, the ARM9 single-chip microcomputer compensates measuring and calculating with temperature information and the wind speed information that receives, obtain the temperature correction value of LED street lamp, the ARM9 single-chip microcomputer is with temperature correction value and preset value T
1Compare, be lower than preset value T as measuring the temperature correction value
1The time, then the ARM9 single-chip microcomputer sends return instruction, control temperature sensor and air velocity transducer once more to the temperature of LED street lamp and on every side wind speed detect;
Electric current when c. setting LED street lamp operate as normal is first pattern, and half electric current when setting LED street lamp operate as normal is second pattern, and 1/3rd electric currents are three-mode when setting LED street lamp operate as normal,
The temperature correction value that detects this LED street lamp when the ARM9 of certain LED street lamp single-chip microcomputer is higher than preset value T
1The time, this ARM9 single-chip microcomputer reads the state of temperature data of three adjacent with relative LED street lamps by sensor node, if when three adjacent with relative LED street lamps all were operated in first pattern, this ARM9 Single-chip Controlling power conditioning module was closed this LED street lamp, lowers the temperature;
When adjacent and opposing L ED street lamp all were operated in second pattern, this ARM9 Single-chip Controlling power conditioning module reduced input current, makes this LED street lamp be operated in three-mode, lowers the temperature;
When having street lamp to be operated in three-mode in adjacent and the opposing L ED street lamp, this ARM9 Single-chip Controlling power conditioning module reduces input current, makes this LED street lamp be operated in second pattern, lowers the temperature;
D. lower the temperature after half an hour, this ARM9 single-chip microcomputer is extrapolated the temperature correction value of current this LED street lamp by temperature sensor and air velocity transducer, and judges whether the temperature correction value is lower than preset value T
2, if be lower than preset value T
2, then this ARM9 Single-chip Controlling LED street lamp reopens and makes this LED street lamp operate as normal; Otherwise continue recycle ratio and calculate temperature correction value and preset value T
2, be lower than preset value T up to measuring and calculating temperature correction value
2Open this LED street lamp again and make its operate as normal.
Claims (3)
1. intelligent LED street lamp based on wireless sensor network, comprise the LED road lamp body, it is characterized in that: in the described LED road lamp body temperature sensor is installed, the LED road lamp body is equipped with air velocity transducer outward, described temperature sensor and air velocity transducer are connected with the ARM9 single-chip microcomputer by A/D converter respectively, be connected with power conditioning module and RS232 interface on the ARM9 single-chip microcomputer respectively, power conditioning module is connected with the LED road lamp body, the RS232 interface is connected with sensor node, described sensor node comprises the single-chip microcomputer that links to each other with the RS232 interface, single-chip microcomputer be linked in sequence wireless chip and PCB antenna.
2. the intelligent LED street lamp based on wireless sensor network according to claim 1 is characterized in that: described single-chip microcomputer model is MSP43F1611, and the wireless chip model is CC2420.
3. one kind according to claim 1 based on the adjusting temperature methods of the intelligent LED street lamp of wireless sensor network, it is characterized in that, comprises the steps:
A., the temperature preset value is set, and the preset value that sets in advance LED street lamp temperature according to operating position is T
1And T
2, preset value T wherein
1Be the highest critical value of LED street lamp operate as normal, preset value T
2Be the back maximum temperature value that starts once more of street lamp of lowering the temperature;
B.LED street lamp unlatching work, temperature sensor and air velocity transducer detect the temperature of LED street lamp and wind speed on every side simultaneously, and the information that will detect sends to the ARM9 single-chip microcomputer by A/D converter respectively, the ARM9 single-chip microcomputer compensates measuring and calculating with temperature information and the wind speed information that receives, obtain the temperature correction value of LED street lamp, the ARM9 single-chip microcomputer is with temperature correction value and preset value T
1Compare, be lower than preset value T as measuring the temperature correction value
1The time, then the ARM9 single-chip microcomputer sends return instruction, control temperature sensor and air velocity transducer once more to the temperature of LED street lamp and on every side wind speed detect;
Electric current when c. setting LED street lamp operate as normal is first pattern, and half electric current when setting LED street lamp operate as normal is second pattern, and 1/3rd electric currents are three-mode when setting LED street lamp operate as normal,
The temperature correction value that detects this LED street lamp when the ARM9 of certain LED street lamp single-chip microcomputer is higher than preset value T
1The time, this ARM9 single-chip microcomputer reads the state of temperature data of three adjacent with relative LED street lamps by sensor node, if when three adjacent with relative LED street lamps all were operated in first pattern, this ARM9 Single-chip Controlling power conditioning module was closed this LED street lamp, lowers the temperature;
When adjacent and opposing L ED street lamp all were operated in second pattern, this ARM9 Single-chip Controlling power conditioning module reduced input current, makes this LED street lamp be operated in three-mode, lowers the temperature;
When having street lamp to be operated in three-mode in adjacent and the opposing L ED street lamp, this ARM9 Single-chip Controlling power conditioning module reduces input current, makes this LED street lamp be operated in second pattern, lowers the temperature;
D. lower the temperature after half an hour, this ARM9 single-chip microcomputer is extrapolated the temperature correction value of current this LED street lamp by temperature sensor and air velocity transducer, and judges whether the temperature correction value is lower than preset value T
2, if be lower than preset value T
2, then this ARM9 Single-chip Controlling LED street lamp reopens and makes this LED street lamp operate as normal; Otherwise continue recycle ratio and calculate temperature correction value and preset value T
2, be lower than preset value T up to measuring and calculating temperature correction value
2Open this LED street lamp again and make its operate as normal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310150134.7A CN103216771B (en) | 2013-04-26 | 2013-04-26 | Light-emitting diode (LED) street lamp based on wireless sensor network and temperature adjustment method of same |
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| CN201310150134.7A CN103216771B (en) | 2013-04-26 | 2013-04-26 | Light-emitting diode (LED) street lamp based on wireless sensor network and temperature adjustment method of same |
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| CN103216771B CN103216771B (en) | 2015-04-22 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104061501A (en) * | 2014-07-21 | 2014-09-24 | 江苏赛达电子科技有限公司 | Wireless intelligent LED street lamp |
| CN109275219A (en) * | 2017-07-18 | 2019-01-25 | 吕朝妮 | Intelligent LED street lamp and adjusting temperature methods based on wireless sensor network |
| CN112594576A (en) * | 2020-12-21 | 2021-04-02 | 南京弹正电子科技有限公司 | Intelligent illuminating system for underground roadway of non-coal mine |
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| US20080137624A1 (en) * | 2006-12-07 | 2008-06-12 | Innovative Wireless Technologies, Inc. | Method and Apparatus for Management of a Global Wireless Sensor Network |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104061501A (en) * | 2014-07-21 | 2014-09-24 | 江苏赛达电子科技有限公司 | Wireless intelligent LED street lamp |
| CN109275219A (en) * | 2017-07-18 | 2019-01-25 | 吕朝妮 | Intelligent LED street lamp and adjusting temperature methods based on wireless sensor network |
| CN112594576A (en) * | 2020-12-21 | 2021-04-02 | 南京弹正电子科技有限公司 | Intelligent illuminating system for underground roadway of non-coal mine |
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| CN103216771B (en) | 2015-04-22 |
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