CN103037568A - Street lamp energy conservation control device - Google Patents

Abstract

The invention relates to an energy-saving control device for street lamps, belonging to the field of automatic control, including: a processor, a clock chip, infrared detection of a human body, vehicle sound detection, a solid-state relay, an autotransformer, key input, liquid crystal display and other components. In the present invention, the processor obtains accurate time information through the clock chip, thereby controlling the on-off state of the solid-state relay in time intervals, so that the autotransformer correspondingly connects one of the three different taps to the street lamp circuit, and the three different taps The taps of the taps correspond to the three gear voltages of 200V, 185V, and 170V after the step-down, that is, the three voltages are loaded to the street lamps in time intervals to achieve the purpose of energy saving for street lamps. At the same time, in order to increase the safety of people and vehicles, in the middle of the night, when human vehicles are detected, the street lamp voltage is restored from 185V or 170V to 200V in advance to increase the brightness; when people and vehicles are far away, the street lamp voltage is restored from 200V Up to 185V or 170V, continue to maintain the energy-saving state. The present invention has the characteristics of simple structure, safe and reliable use, environmental protection and energy saving.

Description

A street lamp energy-saving control device

technical field

The invention belongs to the field of automatic energy-saving control, and specifically designs a device for realizing energy-saving of street lamps by correspondingly outputting three different low-level voltages to the street lamps in three periods.

Background technique

With the sustained and rapid development of my country's economy, the problem of tight energy supply has become increasingly prominent, especially during the peak period of electricity consumption, the lack of electricity is more serious. The electricity consumption of road lighting accounts for a considerable proportion, which is an important aspect of power consumption. Lighting energy saving is becoming an important measure to save energy and protect the environment.

Contents of the invention

The purpose of the present invention is to provide an energy-saving device for street lamps, which is used to reduce the power consumption of street lamps while taking into account the safety of people and vehicles walking.

To achieve the above object, the present invention provides a street lamp energy-saving control device, including: a controller for controlling the cooperative work of various circuit modules and components of the street lamp energy-saving device; an autotransformer for outputting different gear voltages; Control the power supply circuit of the system, the controller includes a processor for controlling and coordinating the work and program operation of various circuit modules and components in the controller; the power circuit includes a step-down coil, a diode bridge rectifier block, The 78M05 voltage regulator chip and several auxiliary filter capacitors can output a stable and pure positive 5V voltage for powering the control system; the controller includes buttons for calibrating time information, and the buttons are connected to the processor; The controller includes a liquid crystal display device for displaying relevant information of the controller, and the display liquid crystal device is connected with the processor; the controller also includes a clock chip for providing time information, and the clock chip is connected with the processor.

The autotransformer is a three-tap step-down autotransformer capable of outputting three gear voltages of 200V, 185V and 170V.

The controller also includes a human body infrared detection circuit for detecting passing pedestrians, and the digital signal output port of the human body infrared detection circuit module is connected to the processor.

The controller also includes a sound detection circuit for detecting passing vehicles, and the digital signal output port of the sound detection circuit is connected with the processor.

The controller also includes a solid-state relay for controlling the on-off of the output terminal of the secondary side of the autotransformer. The solid-state relay is a DC-controlled AC type, and the control terminal is connected to the processor.

The street lamp energy-saving control device of the present invention uses a clock chip to provide time period information, which are: the traffic peak period from the beginning of the light on to zero at night, and the switching street lamp voltage is 200V; The voltage is 170V gear; from 4:00 in the morning until the light is off, switch the street lamp voltage to 185V gear; at the same time, when pedestrians or vehicles are detected passing by during the period from 0:00 to the light off, the street lamp voltage automatically returns to the 200V gear to Improve the brightness of street lamps to ensure the safety of people and vehicles walking. When people and vehicles leave, the voltage of street lamps will automatically return to a lower voltage of 170V or 185V, entering a deep energy-saving state. The invention has the characteristics of simple structure, safe and reliable use, environmental protection and energy saving.

Description of drawings

Figure 1 is a structural block diagram of the street lamp energy-saving control device of the present invention;

Fig. 2 is a program flow chart of the street lamp energy-saving control device of the present invention.

Detailed ways

The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

Fig. 1 is a schematic structural diagram of a street lamp energy-saving control device of the present invention. As shown in Figure 1, the street lamp energy-saving device in the technical solution of this embodiment includes: a clock chip 1, which is used to obtain time information; human body infrared detection 2, which is used to detect whether there are pedestrians during the period from midnight to when the lights are off Passing and whether it has been away; vehicle sound detection 3, used to detect whether there is a vehicle passing by and whether it has been away from the period from zero o'clock to the light off; button 4, used to set time information; system power supply 5, used to provide control system Stable and pure positive 5V voltage. Processor 6, the main control chip of the street lamp energy-saving control system, is used to execute programs and process data to coordinate the actions of various components, and finally achieve the required control effect; The relay controls the different taps of the autotransformer to be connected to the street lamp, that is, three different voltages of 200V, 185V, and 170V are connected to the street lamp lighting circuit in a timely manner; the liquid crystal display 8 is used to display time and working status information; the autotransformer 9 , with 3 taps, which output voltages of 200V, 185V, and 170V respectively. the

Figure 2 is a working flow chart of the street lamp energy-saving control device of the present invention. As shown in Figure 2, the processor 6 is powered on and initialized 201. The initialization includes the clearing and setting of each internal resource of the processor and peripheral circuits. According to the prompt of the liquid crystal display 8, the time is set by the button 4 and automatically saved for a long time. There is no need to set the time again when the battery is initialized. The processor reads the time information 202 through the clock chip, and judges the time period: if the street lamp is turned on to zero, then the autotransformer tap 1 is connected to the street lamp circuit through the control relay 1 203, and the output 200V voltage is loaded on the street lamp 206; If it is between zero o'clock and 4 o'clock in the morning, the tap 2 of the autotransformer is connected to the street lamp circuit through the control relay 2 204, and the output voltage of 170V is loaded on the street lamp 207. The coupling transformer tap 1 is connected to the street lamp circuit, and the output voltage of 200V is loaded on the street lamp 206. After people and vehicles leave, the voltage returns to 170V, and the street lamp continues to be in a deep energy-saving state; 3 205 makes the autotransformer tap 3 connected to the street lamp circuit, and the output 185V voltage is loaded on the street lamp 207. At the same time, if there is a car passing by, the autotransformer tap 1 is connected to the street lamp circuit through the control relay 1 203, and the output 200V voltage is loaded In the street lamp 206, after people and vehicles leave, the voltage returns to 185V, and the street lamp continues to be in a state of deep energy saving.

Claims (5)

1. an energy-saving controlling device for street lamp is characterized in that, comprising: the controller that is used for control each circuit module of energy-saving device for road lamp and parts collaborative work; Be used for exporting the autotransformer of different gear voltages; Be used for the power circuit to the control system power supply, described controller comprises the processor for the work of control and each circuit module of tuning controller and parts and program operation; Described power circuit comprises a diminishing coil, diode bridge rectifying block, 78M05 voltage stabilizing chip and some auxiliary filter electric capacity, and exportable stable pure positive 5V voltage is used for powering to control system; Described controller comprises the button for alignment time information, and described button links to each other with processor; Described controller comprises the liquid crystal display device for the relevant information of display controller, and described demonstration liquid crystal device links to each other with processor; Described controller comprises that also be used to the clock chip that temporal information is provided, described clock chip links to each other with processor.

2. energy-saving controlling device for street lamp as claimed in claim 1 is characterized in that, described autotransformer is to export three of 200V, 185V, three kinds of gear voltages of the 170V autotransformer that taps down.

3. energy-saving controlling device for street lamp as claimed in claim 2 is characterized in that, described controller comprises that also the digital signal output end mouth of described human body infrared detection circuit module links to each other with processor for the human body infrared detection circuit of surveying the pedestrian.

4. energy-saving controlling device for street lamp as claimed in claim 2 is characterized in that, described controller comprises that also the digital signal output end mouth of described sound-detection circuit links to each other with processor for the sound-detection circuit of surveying vehicular traffic.

5. energy-saving controlling device for street lamp as claimed in claim 2 is characterized in that, described controller comprises that also this solid-state relay is the dc controling ac type for the solid-state relay of control autotransformer secondary side output break-make, and control end links to each other with processor.

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