CN206743616U - Smart Energy Saving Street Lamp - Google Patents

Abstract

The intelligent energy-saving street lamp is characterized in that it includes a STC89C52 single-chip microcomputer control circuit, a clock circuit, a light-controlled switch circuit, a sound-activated switch circuit, an alarm circuit, an LCD1602 display screen display circuit, a diode analog street lamp display circuit, and the STC89C52 single-chip microcomputer control circuit controls the setting of the clock, On and off of street lamps and alarm circuit, LCD1602 display screen display circuit and diode analog street lamp display circuit, light control switch circuit, voice control switch circuit respectively transmit the electric signal of sensing light and the electric signal of sensing sound to the control circuit of STC89C52 single chip microcomputer . Compared with the prior art, the utility model has the advantages of environmental protection, energy saving and emission reduction.

Description

Smart Energy Saving Street Lamp

technical field

The utility model relates to a street lamp control technology.

Background technique

Today's society advocates energy saving, environmental protection and low-carbon life. How a city can achieve energy conservation and environmental protection is mainly reflected in some public facilities. The urban street lamp is a symbol of urban road facilities. How to reasonably control street lamps and rationally use electric energy will become one of the aspects that reflect the development level of a city. According to statistics, the electric energy invested in street lamps in a city accounts for about a quarter of all lighting electric energy in the city, and nearly 30% to 40% of the electric energy is wasted, that is, when there is no need for lighting Street lamps are still in working condition, causing a waste of electric energy. Moreover, because the street lamps work for a long time and are in the state of being on for a long time, it is easy to shorten the life of the street lamps, so that the street lamps are easy to be damaged, which increases the maintenance amount of the staff, and the replacement cycle is short. If they are not replaced in time, there are likely to be potential safety accidents , and caused secondary waste of capital and labor, etc., a large amount of economic loss is extremely unfavorable for social development.

Contents of the invention

The purpose of the invention of this utility model is to provide a free adjustment of the brightness of street lamps in different periods, so that the lamps can be automatically turned on or off when necessary, and can be adaptively adjusted to achieve the best lighting effect on the outside world, and at the same time successfully It avoids the unnecessary waste of energy caused by the long-time turning on of the light when it is not needed, reduces the trouble of manually turning it off when it needs to be turned off, and greatly prolongs the service life of the light, and truly eliminates waste in details , Energy saving, environmental protection, energy saving and emission reduction intelligent energy-saving street lamps.

The utility model is realized in this way, including STC89C52 single-chip microcomputer control circuit with clock circuit, light control switch circuit, sound control switch circuit, alarm circuit, LCD1602 display screen display circuit, diode analog street lamp display circuit, light control switch circuit includes photoresistor , the first variable resistor, the first resistor, the second resistor, the first dual-voltage comparison integrator LM393, one end of the first resistor is connected to the power supply, the other end of the first resistor is connected to one end of the photoresistor, and the other end of the photoresistor is grounded , the anode of the first dual-voltage comparator integrator LM393 is connected between the photoresistor and the first resistor, the inverting end of the first dual-voltage comparator integrator LM393 is connected to the variable resistor terminal of the first variable resistor, and the first variable resistor Connected between the power supply and the ground, the power input terminal of the first dual-voltage comparison integrator LM393 is connected to the power supply, the ground terminal of the first dual-voltage comparison integrator LM393 is grounded, and the signal output of the first dual-voltage comparison integrator LM393 is connected to the The first control circuit of STC89C52 microcontroller is connected to the control signal input and connected to the power supply through the second resistor. The voice-activated switch circuit includes a microphone, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, and a second variable resistor. , the first capacitor, the second capacitor, the triode, the second dual-voltage comparison integrator LM393, the microphone is connected in parallel with the third resistor, the first capacitor is connected in series with the fourth resistor, and then connected between the power supply and ground, the second capacitor One end of which is connected to the base of the triode, the other end of the second capacitor is connected between the microphone and the fourth resistor, one end of the fifth resistor is connected to the power supply, and the other end is connected between the base of the triode and the second capacitor, and the second variable The resistor is connected between the power supply and the ground, the power input terminal of the second dual voltage comparison integrator LM393 is connected to the power supply, the ground terminal of the second dual voltage comparison integrator LM393 is grounded, and the signal outputs of the second dual voltage comparison integrator LM393 are respectively It is connected to the control signal input of the second control circuit of the STC89C52 single-chip microcomputer and connected to the power supply through the seventh resistor. The emitter of the second dual-voltage comparison integrator LM393 is connected to the variable resistance connection end of the second variable resistance, the control signal output of the STC89C52 single-chip microcomputer controls the on and off of the street lamp and the alarm circuit, LCD1602 display circuit and The diode simulates the work of the street light display circuit,

During the daytime, the street lights will not be on, and the voice-activated switch circuit is in a disconnected state, but when encountering cloudy days, heavy fog or smog and other bad weather, the light will be dimmed and the visibility will be reduced. At this time, the light-activated switch circuit will detect the light intensity Whether it is lower than the specified value 15LUX, after judging that it is lower than the set value, the STC89C52 single-chip control circuit will automatically control the street light to be on. When the weather improves and the light intensity returns to the normal level, after the photosensitive detection of the light-controlled switch circuit, the light-controlled switch circuit will turn off the street lights in time through the STC89C52 single-chip control circuit, so that it will not cause waste of electric energy and bring traffic to the road. For better security,

In the first half of the night, the ordinary lighting method is adopted, that is, all the street lights are turned on to meet the traffic safety of pedestrians and vehicles, and when there is a situation where the street lights are broken and do not light up, the buzzer of the alarm circuit will also send out an alarm in time. On the one hand, it can notify the staff to carry out maintenance, on the other hand, it can also remind pedestrians and vehicles to pay attention to street lamp failure and pay attention to the road conditions.

In the second half of the night, the mode of turning on the street lamps at intervals in the second half of the night is firstly adopted, but when pedestrians or vehicles pass by, the sound change can be detected through the voice-activated switch circuit, so that all the street lights that are not turned on in the energy-saving mode are turned on again, and the recovery is restored. The original lighting level ensures traffic safety.

The operation of the entire control system is based on the timing output of the DS1302 time module, which is the basis for the normal operation of the entire system. The button circuit is to adjust the current time for the clock setting, and the light control switch is used to automatically work when the light intensity is lower than the set value during the day, so as to solve emergencies caused by unmanned control in time. The voice-activated switch is automatically sensed when pedestrians or vehicles pass by in the middle of the night, and the street lights are turned on for a period of time. The LCD display mainly shows the clock time, and the prompt "broken" when the lamp is broken. The alarm is used as an alarm. When the street lamp fails, it will remind the maintenance personnel to repair it in time in the form of an alarm, so as to avoid the inconvenience caused by the lamp failure.

Compared with the prior art, the utility model has the ability to freely adjust the brightness of street lamps in different periods, so that the lamps can be automatically turned on or off when necessary, and can be self-adapted to achieve the best lighting effect for the outside world. It successfully avoids the unnecessary waste of energy caused by turning on the lamp for a long time when it is not needed, reduces the trouble of manually turning it off when it needs to be turned off, and greatly prolongs the service life of the lamp. Advantages of waste, energy saving, environmental protection, energy saving and emission reduction.

Description of drawings:

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the circuit diagram of the present utility model;

Fig. 3 is the circuit diagram of voice control switch;

Fig. 4 is the circuit diagram of light control switch;

Fig. 5 is the main flow chart when the utility model works;

Fig. 6 is the flow chart when the utility model initial mode;

Fig. 7 is the flow chart when the utility model works in the daytime;

Fig. 8 is the working flow diagram of the utility model in the first half of the night;

Fig. 9 is the flow chart when the utility model works in the middle of the night.

detailed description:

Now in conjunction with accompanying drawing and embodiment the utility model is described in further detail:

As shown in Figures 1 and 2, the utility model includes a STC89C52 single-chip microcomputer control circuit, a clock circuit, a key setting circuit, a light control switch circuit, a voice control switch circuit, an alarm circuit, an LCD1602 display screen display circuit, a diode analog street lamp display circuit, and key setting The circuit sets the working program of the STC89C52 single-chip microcomputer, the STC89C52 single-chip microcomputer control circuit controls the setting of the clock, the control signal output of the STC89C52 single-chip microcomputer (pins 32-39) controls the on and off of the street lamp, the LCD1602 display screen display circuit and the work of the diode analog street lamp display circuit , the control signal output (pin 22) of the STC89C52 single-chip microcomputer controls the work of the alarm circuit, and the light-activated switch circuit and the sound-activated switch circuit respectively transmit the electric signal of the induction light and the electric signal of the induction sound to the control circuit of the STC89C52 single-chip microcomputer.

As shown in Figure 3, the voice control switch circuit includes a microphone, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, a second variable resistor, a first capacitor, a second capacitor, a triode, a second Dual-voltage comparator integrator LM393, the microphone is connected in parallel with the third resistor and the first capacitor, then connected in series with the fourth resistor, and then connected between the power supply and ground, one end of the second capacitor is connected to the base of the triode, and the second capacitor The other end is connected between the microphone and the fourth resistor, one end of the fifth resistor is connected to the power supply, the other end is connected between the base of the triode and the second capacitor, the second variable resistor is connected between the power supply and the ground, and the second dual voltage comparison The power input terminal of the integrator LM393 is connected to the power supply, the ground terminal of the second dual-voltage comparator integrator LM393 is grounded, and the signal output of the second dual-voltage comparator integrator LM393 is respectively connected to the control signal input of the second control circuit of the STC89C52 microcontroller (P3. 2) connected and connected to the power supply through the seventh resistor, the collector of the triode is connected to the power supply through the sixth resistor, and connected to the inverting terminal of the second dual-voltage comparator integrator LM393, the emitter of the triode is grounded, and the second dual The anode of the voltage comparison integrator LM393 is connected to the variable resistor connection end of the second variable resistor, and the voice-activated switch circuit is mainly used to detect the sound intensity of the surrounding environment. This module is used in the energy-saving mode in the middle of the night. When pedestrians or vehicles pass by, the voice-activated switch circuit is in the working state, and the street lights are turned on for a period of time. When the external sound intensity of the voice-activated switch circuit does not reach the preset value, OUT in the voice-activated switch circuit outputs a high level; when the sound intensity of the external environment is greater than the preset value, OUT in the voice-activated switch circuit outputs a low level The high and low levels are detected by the single-chip microcomputer, thereby detecting the sound of the environment.

As shown in Figure 4, the light control switch circuit includes a photosensitive resistor, a first variable resistor, a first resistor, a second resistor, and a first dual-voltage comparator integrator LM393, one end of the first resistor is connected to the power supply, and the other end of the first resistor is connected to the power supply. One end is connected to one end of the photoresistor, the other end of the photoresistor is grounded, the anode of the first dual voltage comparison integrator LM393 is connected between the photoresistor and the first resistor, and the inverting end of the first dual voltage comparison integrator LM393 is connected to the first variable On the resistor variable resistor terminal, the first variable resistor is connected between the power supply and the ground, the power input terminal of the first dual-voltage comparison integrator LM393 is connected to the power supply, and the ground terminal of the first dual-voltage comparison integrator LM393 is grounded. The signal output of the first dual-voltage comparison integrator LM393 is respectively connected to the control signal input (P2.2) of the first control circuit of the STC89C52 microcontroller and connected to the power supply through the second resistor. The photoresistor module is sensitive to ambient light and is generally used to detect surroundings. The intensity of the light in the environment can then touch the single-chip microcomputer or relay module, etc. When the brightness of the light control switch circuit does not reach the preset value, the DO terminal in the light control switch circuit will output a high level. When the light intensity exceeds the preset value, the DO terminal in the light control switch circuit will output a low level; use the single-chip microcomputer to judge the high level and low level, and then detect the change of the light intensity of the environment according to this, and the small board The analog output AO can be directly connected to the AD module, and through AD conversion, more accurate data on the brightness of the surrounding light can be obtained.

The main flow chart when the utility model is working is as shown in Figure 5.

As shown in Figure 6, each control system needs an initial program, and the initial mode of the system is the prerequisite for the system to realize subsequent functions. The utility model adopts serial transmission data, and the source program is downloaded to the single-chip microcomputer through the serial port. Reset the system after it is powered on, and the LCD1602 display screen will display the initial setting value of the clock on the display screen. You can set the current time through the setting button. Press once to set the current time, and press twice to set the street light timing. open time. The initialization program flow is shown in Figure 6. The source program is programmed into the MCU through the serial port circuit. In this design, the USB serial port is not only a serial port line, but also a power supply circuit. It is powered by USB for the operation of the entire system. LCD1602 display screen display circuit is the display module of the whole system, which displays the current time through the display screen.

As shown in Figure 7, the work of the system during the day is to carry out intelligent control modules through photoresistors. During the day, the street lights will not be on, and the voice control module is also in the disconnected state, but when encountering cloudy days, heavy fog or haze and other bad weather, the light will be dimmed and the visibility will be reduced. At this time, the light control switch circuit will detect the light intensity. Whether it is lower than the specified value 15LUX, after judging that it is lower than the set value, the STC89C52 single-chip control circuit automatically controls to turn on the street light. When the weather improves and the light intensity returns to the normal level, after the photosensitive detection of the light-controlled switch circuit, the light-controlled switch circuit will turn off the street lights in time through the STC89C52 single-chip control circuit, so that it will not cause waste of electric energy and bring traffic to the road. For better security.

As shown in Figure 8, the first half of the night refers to the period from 6:00 in the evening to 12:00 in the middle of the night. This period of time belongs to the period of traffic flow of many people and vehicles, so ordinary lighting methods are used, that is, all street lights are turned on. In order to meet the traffic safety of pedestrians and vehicles, and when a street lamp is broken and does not light up, the buzzer of the alarm circuit will also send an alarm in time. On the one hand, it can notify the staff for maintenance, and on the other hand, it can also prompt Pedestrians and vehicles pay attention to street lamp failure and pay attention to road conditions.

As shown in Figure 9, the second half of the night refers to the period from 12:00 midnight to 6:00 am. In the traditional street lighting system, all street lights are basically on from 6:00 pm to 6:00 am. The traffic flow and people flow in the middle of the night will become less. If all the street lights are still turned on, a lot of electric energy will be wasted. In order to make the control system more energy-saving, the mode of turning on the street lights at intervals in the second half of the night is first adopted. This mode can not only save half of the electricity, but also will not have a great impact on the lighting. But when there are pedestrians or vehicles passing by, in order to ensure traffic safety, all the street lights should be turned on to ensure that the road has sufficient lighting, so a voice-activated switch circuit is added on the basis of this energy-saving mode, that is, if there are pedestrians and vehicles When passing by, there will be a sound, and the change of the sound can be detected by the sound-activated switch circuit, so that all the street lights that are not turned on in the energy-saving mode are turned on again, and the original lighting level is restored to ensure traffic safety.

Claims (1)

1. intelligent energy-saving street lamp, it is characterised in that including the STC89C52 single chip control circuit with clock circuit, light-operated open Powered-down road, sound controling switch circuit, warning circuit, LCD1602 display screens display circuit, diode simulation street lamp display circuit, light Control on-off circuit compares integrator including photo resistance, the first variable resistor, first resistor, second resistance, the first twin voltage LM393, first resistor wherein one end are connected with power supply, and the first resistor other end is connected with photo resistance wherein one end, photosensitive electricity Other end ground connection is hindered, the first twin voltage compares integrator LM393 positive poles and is connected between photo resistance, first resistor, first pair of electricity Pressure ratio is connected on the first variable resistor variable resistor terminals compared with integrator LM393 end of oppisite phase, and the first variable resistor is connected to Between power supply and ground connection, the power access end that the first twin voltage compares integrator LM393 is connected with power supply, and the first twin voltage compares collection Grow up to be a useful person LM393 earth terminal ground connection, the first twin voltage compare integrator LM393 signal output respectively with STC89C52 single chip The input of first control circuit control signal is connected and is connected by second resistance with power supply, and sound controling switch circuit includes microphone, the Three resistance, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the second adjustable resistance, the first electric capacity, the second electric capacity, three Pole pipe, the second twin voltage compare integrator LM393, and microphone and 3rd resistor, the first electric capacity simultaneously concatenate after connecing with the 4th resistance, so After be connected between power supply and ground connection, the second electric capacity wherein one end is connected to the base stage of triode, the other end connection of the second electric capacity Between microphone and the 4th resistance, the 5th resistance one end is connected with power supply, and the other end is connected to the base stage and the second electric capacity of triode Between, the second adjustable resistance is connected between power supply and ground connection, and the second twin voltage compares integrator LM393 power access end and power supply It is connected, the second twin voltage compares integrator LM393 earth terminal ground connection, and the signal that the second twin voltage compares integrator LM393 is defeated Go out and be connected with the input of STC89C52 single chip second control circuit control signal and be connected by the 7th resistance with power supply respectively, three The colelctor electrode of pole pipe is connected by the 6th resistance with power supply respectively, and compared with the second twin voltage integrator LM393 it is anti-phase End is connected, and the grounded emitter of triode, the positive pole that the second twin voltage compares integrator LM393 is connected to the second adjustable resistance On variable resistor connection end, the light on and off of STC89C52 single chip control signal output control street lamp and warning circuit, LCD1602 The work of display screen display circuit and diode simulation street lamp display circuit.