CN201854477U

CN201854477U - Self-coupled power-saving control device for street lamp

Info

Publication number: CN201854477U
Application number: CN2010205569497U
Authority: CN
Inventors: 李彬斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-10-07
Filing date: 2010-10-07
Publication date: 2011-06-01
Anticipated expiration: 2020-10-07

Abstract

The utility model relates to the field of street lamp automation, in particular to a self-coupled power-saving control device for street lamps. A single-chip microcomputer control circuit is used as a control core, the output ends of a reset circuit, a keyboard circuit, a digital input circuit, a voltage and current sampling circuit, a power circuit and a watchdog circuit are connected to the single-chip microcomputer control circuit, and a display circuit, a communication and display circuit and a main loop control circuit are output-controlled by the single-chip microcomputer control circuit. The self-coupled power-saving control device for the street lamps forms a power-saving control system by taking the single-chip microcomputer control circuit as the control core, and adopting a working principle of self-coupled voltage reduction of a power saver and a working manner of the main loop control circuit, so that the performance is reliable, the principle is simple, the control is convenient and the cost is low.

Description

A kind of autocoupling type electricity saving of road lamp control device

Technical field

The utility model relates to the street lamp automation field, particularly is a kind of autocoupling type electricity saving of road lamp control device.

Background technology

Along with various places economy and traffic fast development, the road lighting quality improves constantly, the illuminating street lamp facility scale is increasing, quantity is also more and more, and this promotes rapid economic development to improving the investment environment of each department, bring more conveniences to the people in their daily life, the beautifying city played great role, but incident is increasing substantially of energy consumption, and particularly energy prices promote significantly in recent years, makes the electric power of city illumination expend the large economy burden that becomes various places government department; In addition, find that through test in many ways most city street lamps are after night 22:00, supply power voltage raises about 15% because of power load reduces, this moment, power consumption equipment moved being higher than under the equipment rated voltage state, will cause the overequipment heating, both shorten the lamp source service life, increased maintenance cost again.

According to another relevant statistics, present city illumination power consumption is near 15% of energy output, and lighting energy consumption is in rising trend always, along with China's energy shortage, and power shortage, simultaneously, there is the problem that power consumption efficiency is low, waste is serious in many places.So the economic again battery saving arrangement of a kind of convenience of necessary employing solves above problem.

The utility model content

It is the control core with the single-chip microcomputer that the purpose of this utility model provides a kind of, with the operation principle of electricity-saving appliance self coupling step-down, and the autocoupling type electricity saving of road lamp control device of major loop control circuit working method.

The technical scheme that the utility model adopted is such: a kind of autocoupling type electricity saving of road lamp control device, with the single chip machine controlling circuit is the control core, the output of reset circuit RESET, keyboard circuit, digital quantity input circuit, voltage, current sampling circuit, power circuit, watchdog circuit is connected to single chip machine controlling circuit, and display circuit, communication and display circuit, major loop control circuit are by single chip machine controlling circuit output control.

It is host CPU that described single chip machine controlling circuit adopts AVR Chip Microcomputer A tmega64.

Described major loop control circuit is by bypass contactor KM0, economize on electricity major loop contactor KM1 and KM2, transition resistance control contactor KMR, envelope zero contactor KM7, step-down contactor KM3, KM4, KM5, KM6 form, by the movement of autotransformer, electrical network is divided into several gear outputs.

Described voltage, current sampling circuit are gathered voltage by current transformer T1, connect resistance R 2 and common mode inductance L2, through capacitor C 1, C2 filtering, be converted to the once-through type signal by electric pressure converter, be isolated into single chip machine controlling circuit by amplifier at last sampled signal is provided.

By adopting the aforementioned techniques scheme, the beneficial effects of the utility model are: this autocoupling type electricity saving of road lamp control device, with the single-chip microcomputer is the control core, operation principle with the step-down of electricity-saving appliance self coupling, major loop control circuit working method is formed electricity-saving control system, and dependable performance, principle are simply, control is convenient, cost is low.

Description of drawings

Further specify the utility model below in conjunction with the drawings and specific embodiments.

Fig. 1 is a frame structure schematic diagram of the present utility model;

Fig. 2 is a major loop control circuit schematic diagram of the present utility model;

Fig. 3 is voltage of the present utility model, current sampling circuit schematic diagram.

Embodiment

As shown in Figure 1, a kind of autocoupling type electricity saving of road lamp control device, with single chip machine controlling circuit 1 is the control core, the output of reset circuit RESET, keyboard circuit 5, digital quantity input circuit 6, voltage, current sampling circuit 7, power circuit 8, watchdog circuit 9 is connected to single chip machine controlling circuit 1, and display circuit 2, communication and display circuit 3, major loop control circuit 4 are by single chip machine controlling circuit 1 output control.

It is host CPU that described single chip machine controlling circuit 1 adopts AVR Chip Microcomputer A tmega64, this single-chip microcomputer has the FLASH of 64K, the EEPROM of 2K, erasable number of times can reach 100,000 times, can be used for storaging state information, 4 timer/counters, can be used to be provided with and overflow interruption, 53 I/O pins, has bigger current driving ability, can directly drive LCD and save drive circuit, the TWI serial line interface of byte-oriented can be saved the I/O mouth by plug-in miscellaneous equipment, 2 serial USART interfaces able to programme are supported full duplex universal synchronous/asynchronous serial communication, 8 path 10 position A/D passages etc.

Described display circuit 2 adopts serial mode, connects data wire, clock line, reset line, chip select line equisignal line, controls liquid crystal display; Digital quantity input circuit 6 is given single-chip microcomputer signal by light-coupled isolation; Keyboard circuit 5 can directly but be driven by single-chip microcomputer.

The man-machine interface interface that described communication and display circuit 3 adopt has two hierarchical levels of menus, and various function can be set, and sets, fixes economize on electricity time set, clock setting, communications parameter setting etc. as longitude and latitude.Writing of various functions all has certain algorithm, changes the sequence of movement and the state of major loop control circuit 4 contactors as required.Longitude and latitude is set input longitude and latitude system can calculate sun set/raise time according to the longitude and latitude of locality, thereby determines to turn on light the time of delay and the pre-set time of turning off the light.Known: h=-0.833 ° of sunrise sunset position, longitude Long, latitude Glat, time zone Zone, when calculating for the first time sun set/raise time UT0=180 °, wherein days is January 1 2000 Greenwich Mean Time to the fate that calculates day, t is January 1 2000 Greenwich Mean Time to the century number that calculates day, L is the mean longitude of the sun, G is the mean anomaly of the sun, and Q is the ecliptic longitude of the sun, and k is the inclination angle of the earth, d is the deviation of the sun, GHA is the time-angle of the sun, and e is a correction value, " ± " in the flow chart in the formula, between "+" expression was calculated at sunrise, sunset time was calculated in "-" expression.The unit that calculates above is degree, and promptly 180 °=12 hours is T=UT/15+Zone so be converted into hour time of expression at last.Space-time approach have by longitude and latitude setting work, by the set time set work, by the particular sections three kinds of modes of working holiday, should handle the order of priority in the function setting well, the selection of gear and the selection in loop should be the first order with the manual operations, most optimal gear is determined in secondary setting with voltage stabilizing function, determine according to the priority of three kinds of working methods at last, it is the highest that the economize on electricity time then is set at priority with the specific date section, and taking second place is that special time period is set for longitude and latitude at last.

As shown in Figure 2, described major loop control circuit 4 is by bypass contactor KM0, economize on electricity major loop contactor KM1 and KM2, transition resistance control contactor KMR, envelope zero contactor KM7, step-down contactor KM3, KM4, KM5, KM6 form, and by the movement of autotransformer, electrical network are divided into several gear outputs, during startup, relay K M0 is closed earlier, economize on electricity major loop contactor KM1 and KM2 adhesive, first full voltage starting (because inductive load charging, starting resistor is big, otherwise lamp does not work); Enter electricity-saving state behind the certain hour, progressively carry out voltage-regulation voltage-stabilization according to the value of setting, strict sequence of movement is arranged during its gear shift, it is as follows that step-down contactor KM7 switches to the KM6 sequence of movement: KMR closure-KM7 disconnection-KM1 closure-KMR disconnects, occurring lamp when solving gear switch flashes and resembles, when switching, each pressure regulation connects excessive resistance earlier, therefore three actuatings of relay are arranged in a gear transfer process, according to certain economize on electricity requirement, the action of these contactors is all controlled by single chip machine controlling circuit 1, realizes simply, is convenient to operation.

As shown in Figure 3, described voltage, current sampling circuit 7 are gathered voltage by current transformer T1, connect resistance R 2 and common mode inductance L2, common mode inductance L2 improves the influence to common mode disturbances, through capacitor C 1, C2 filtering, be converted to the once-through type signal by electric pressure converter, be isolated into single chip machine controlling circuit 1 by amplifier at last sampled signal is provided.

More than show and described basic principle of the present utility model and principal character and advantage thereof; the technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the explanation just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications; these changes and improvements all fall in claimed the utility model scope, and the claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims

1. autocoupling type electricity saving of road lamp control device, it is characterized in that: with single chip machine controlling circuit (1) is the control core, the output of reset circuit RESET, keyboard circuit (5), digital quantity input circuit (6), voltage, current sampling circuit (7), power circuit (8), watchdog circuit (9) is connected to single chip machine controlling circuit (1), and display circuit (2), communication and display circuit (3), major loop control circuit (4) are by single chip machine controlling circuit (1) output control.

2. a kind of autocoupling type electricity saving of road lamp control device according to claim 1 is characterized in that: it is host CPU that described single chip machine controlling circuit (1) adopts AVR Chip Microcomputer A tmega64.

3. a kind of autocoupling type electricity saving of road lamp control device according to claim 1, it is characterized in that: described major loop control circuit (4) is by bypass contactor KM0, economize on electricity major loop contactor KM1 and KM2, transition resistance control contactor KMR, envelope zero contactor KM7, step-down contactor KM3, KM4, KM5, KM6 form, by the movement of autotransformer, electrical network is divided into several gear outputs.

4. a kind of autocoupling type electricity saving of road lamp control device according to claim 1, it is characterized in that: described voltage, current sampling circuit (7) are gathered voltage by current transformer T1, connect resistance R 2 and common mode inductance L2, through capacitor C 1, C2 filtering, be converted to the once-through type signal by electric pressure converter, be isolated into single chip machine controlling circuit (1) by amplifier at last sampled signal is provided.