CN108882473A - A kind of Light Controlling Street Lamp Controller and its control method - Google Patents

Abstract

A light-controlled street lamp controller and a control method thereof. The light-controlled street lamp controller includes a photosensitive element, a signal conditioning circuit, a microprocessor, a drive circuit, a relay circuit, and a power supply circuit. In the microprocessor, set the set value of the light intensity when it is turned on and off and the set value storage unit of the gradient of the light intensity when it is turned on and off, set the initial value, and the microprocessor can carry out the collected external light intensity signal Processing, by calculating the gradient of light intensity to distinguish between natural light and other external lights, to avoid misjudgment by the light controller, through the comparison of light intensity at different times, to avoid flickering around the set point when the light is turned on and off, saving labor costs .

Description

Light-controlled street lamp controller and control method thereof

technical field

The invention belongs to the technical field of street lamp control, and in particular relates to a light-controlled street lamp controller and a control method thereof.

Background technique

Light-controlled street lamp controller refers to the control device installed with photosensitive elements such as photoresistors in the street lamp controller. Through the photosensitive element, it senses the intensity of external light, artificially distinguishes day from night, and automatically turns off or turns on street lights, saving labor costs. The patent number is 201610167069 .2, and the patent name is "light-controlled street lamp controller". The design scheme of the light-controlled street lamp controller is disclosed. The scheme is between the street lamp and the power supply. A control circuit controlled by a photosensitive element is designed to realize the control of the street lamp. control. The patent number is 201410520378.4, the patent name is "solar street lamp control system and method based on time, illuminance and visibility" and the patent number is 201210546454.X, the patent name is "a control method for an independent intelligent street lamp control system". Through the gray value of the collected image and the brightness correlation of the image, that is, the visibility of the light is used to determine the opening and closing of the street light controller; the patent number is 200710200126.3, and the patent name is "Preventing misoperation in automatic control of natural light brightness in street light switches Method and device" and the patent number is 201210232482.4, and the patent name is "street lamp control switch self-maintaining device and realization method" through delay sampling, calculating the average value of light intensity and the light intensity within a period of time (3 minutes). Average value, to determine the switching on and off of the street light controller. The light-controlled street lamp controller sets the set value of the light intensity when the street light is turned on and off through circuit parameters or computer programs, compares the external light intensity with the set value when the street light is turned on or off, and determines the working status of the street light. However, the external light intensity will not increase or decrease monotonically. Sometimes, due to the influence of external factors, the external light intensity will fluctuate on the set value, causing the street lamp controller to start frequently around the set value, and the street lamps will flicker , The street lamp controller is damaged due to frequent startup. Lightning and other influences such as thunderstorms and lightning will cause misjudgment of the lighting controller.

In addition, due to different geographical latitudes and different needs of different places, the light intensity is also different when it is turned on and off. It takes a lot of labor costs to input the set values of different light intensities into the street light controller.

Contents of the invention

In order to avoid misjudgment of the lighting controller due to lightning, eliminate the flickering of the lighting at the on and off setting points, and reduce labor costs, the present invention provides a light-controlled lighting controller and a control method thereof.

The technical solution adopted by the present invention to solve the technical problem is: between the light and the input power supply, the light-controlled street lamp controller includes:

The power circuit converts the input power to provide the required power for the signal conditioning circuit, microprocessor, drive circuit and relay circuit respectively;

The photosensitive element is used to collect the light intensity of the outside world;

Signal conditioning circuit, one end is connected to the photosensitive element, and the other end is connected to the microprocessor, which is used to convert the light intensity signal collected by the photosensitive element into an electrical signal, which is amplified and sent to the microprocessor for processing;

The microprocessor is connected with the signal conditioning circuit and the driving circuit respectively, processes the collected external light intensity signal, and inputs the processed control signal into the driving circuit;

A driving circuit, one end is connected with the microprocessor, and the other end is connected with the relay circuit, which is used to amplify the control signal output by the microprocessor;

The relay circuit, one end is connected to the driver circuit, and the other end is connected to the power line of the light, which is used to control the turning on and off of the light.

The photosensitive element is a photoresistor.

Described microprocessor is 89S52.

The photosensitive element collects the light intensity of the outside world, which is amplified by the signal conditioning circuit and sent to the microprocessor for processing. After processing, the control signal is output. After being amplified by the drive circuit, it acts on the relay circuit to turn on or off the light.

Among them, the microprocessor processing is as follows:

The microprocessor sets the light intensity setting value for turning on and off the light through the program, and stores it in the storage unit of the microprocessor. The gradient value of the light intensity when the light is turned on and off is allocated to the storage unit, and the initial value is set to zero. ;

The microprocessor receives the light intensity signal and compares it with the switch stored in the microprocessor and the set value when it is turned off. When the light intensity reaches the set value for turning on the light, the microprocessor starts timing and records the current light intensity. Value U ₀ ;

Collect the light intensity signal every 10 seconds, repeat 5 times, and record the values U ₁ , U ₂ , U ₃ , U ₄ , U ₅ of the light intensity at that time;

Use ︱U ₁ -U ₀ ︱, ︱U ₂ -U ₁ ︱, ︱U ₃ -U ₂ ︱, ︱U ₄ -U ₃ ︱, ︱U ₅ -U ₄ ︱ to calculate the gradient value of the light intensity;

The calculated gradient value and the average value of the 5 gradient values, if the stored gradient value of the light intensity at the time of opening is zero, store twice the value of the maximum value in the calculated gradient value in the light intensity at the time of opening of the microprocessor. In the storage unit of the intensity gradient, re-acquire a set of light intensity values;

If the gradient value of the light intensity when it is turned on is not zero, compare the calculated gradient value and the average value of the 5 gradient values with the stored gradient value when it is turned on, and the calculated gradient value is greater than the stored gradient value when it is turned on or The average gradient value is greater than the stored gradient value at the time of opening, average the average gradient value and the stored gradient value at the time of opening, store the result again in the storage unit of the gradient value at the time of opening, and collect a group of illumination again strength;

On the contrary, the calculated gradient value is not greater than the stored gradient value at the time of opening, and the average gradient value is not greater than the stored gradient value at the time of opening, the average gradient value and the stored gradient value at the time of opening are averaged, and the result Re-store in the storage unit of the gradient value when it is turned on, and turn on the light;

The microprocessor receives the light intensity signal and compares it with the switch stored in the microprocessor and the set value when it is turned off. When the light intensity reaches the set value for turning off the light, the microprocessor starts timing and records the current light intensity. Value U ₀ ;

Collect the light intensity signal every 10 seconds, repeat 5 times, and record the values U ₁ , U ₂ , U ₃ , U ₄ , U ₅ of the light intensity at that time;

Use ︱U ₁ -U ₀ ︱, ︱U ₂ -U ₁ ︱, ︱U ₃ -U ₂ ︱, ︱U ₄ -U ₃ ︱, ︱U ₅ -U ₄ ︱ to calculate the gradient value of the light intensity;

The calculated gradient value and the average value of 5 gradient values, if the gradient value of the light intensity is zero when it is turned off, store the double value of the maximum value in the calculated gradient value in the value of the light intensity when the microprocessor is turned off In the storage unit of the gradient, re-acquire a set of light intensity values;

If the gradient value of the light intensity is not zero when it is turned off, compare the calculated gradient value and the average value of the 5 gradient values with the stored gradient value when it is turned off, and the calculated gradient value is greater than the stored gradient value when it is turned off or If the average gradient value is greater than the stored off-time gradient value, average the average gradient value and the stored off-time gradient value, re-store the result in the storage unit of the off-time gradient value, and re-acquire a group of illumination strength;

On the contrary, the calculated gradient value is not greater than the stored gradient value at closing time, and the average gradient value is not greater than the stored closing gradient value, the average gradient value and the stored closing gradient value are averaged, and the result Re-store in the storage unit of the gradient value at the time of shutdown, and turn off the light.

The illumination change of natural light is slow, which is obviously different from the illumination change of lightning in thunder and lightning weather. By calculating the gradient of illumination intensity to distinguish between natural light and other external lights, avoiding misjudgment by the lighting controller, and by adjusting the intensity of illumination at different times Compare, to avoid lights flickering around the set point when turning on and off.

The beneficial effect of the present invention is that by calculating the gradient of light intensity to distinguish natural light from other external lights, avoiding misjudgment by the light controller, and by comparing light intensity at different times, it is possible to prevent the light from being around the set point when it is turned on and off. flashing.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is a structural schematic diagram of the present invention.

In Fig. 1, 1. Power supply circuit, 2. Microprocessor, 3. Photosensitive element, 4. Signal conditioning circuit, 5. Driving circuit, 6. Relay circuit.

Detailed ways

In Figure 1, the light-controlled street lamp controller includes:

Between lights and input power, light-controlled street light controllers include:

The power circuit (1) converts the input power to provide the required power for the signal conditioning circuit (4), the microprocessor (2), the drive circuit (5) and the relay circuit (6);

The photosensitive element (3) is used to collect the light intensity of the outside world;

Signal conditioning circuit (4), one end is connected to the photosensitive element (3) and the other end is connected to the microprocessor (2), which is used to convert the light intensity signal collected by the photosensitive element into an electrical signal, which is amplified and sent to the microprocessor for processing ;

The microprocessor (2) is respectively connected with the signal conditioning circuit (4) and the driving circuit (5), processes the collected external light intensity signal, and inputs the processed control signal into the driving circuit;

The drive circuit (5), one end is connected to the microprocessor (2), and the other end is connected to the relay circuit (6), for amplifying the control signal output by the microprocessor;

One end of the relay circuit (6) is connected to the driver circuit (5), and the other end is connected to the power line of the light, for controlling the light to be turned on and off.

The photosensitive element is a photoresistor.

Described microprocessor is 89S52.

The photosensitive element collects the light intensity of the outside world, which is amplified by the signal conditioning circuit and sent to the microprocessor for processing. After processing, the control signal is output. After being amplified by the drive circuit, it acts on the relay circuit to turn on or off the light.

Among them, the microprocessor processing is as follows:

The microprocessor sets the light intensity setting value when turning on and off the light through the program, and stores it in the storage unit of the microprocessor, assigns the gradient value of the light intensity when turning on and off the light to the storage unit, and sets the initial value as zero;

The microprocessor receives the light intensity signal and compares it with the switch stored in the microprocessor and the set value when the light is turned off. When the light intensity reaches the set value for turning on the light, the microprocessor starts timing and records the current light intensity The value of U ₀ ;

Collect the light intensity signal every 10 seconds, repeat 5 times, and record the values U ₁ , U ₂ , U ₃ , U ₄ , U ₅ of the light intensity at that time;

Use ︱U ₁ -U ₀ ︱, ︱U ₂ -U ₁ ︱, ︱U ₃ -U ₂ ︱, ︱U ₄ -U ₃ ︱, ︱U ₅ -U ₄ ︱ to calculate the gradient value of the light intensity;

The calculated gradient value and the average value of the 5 gradient values, if the stored gradient value of the light intensity at the time of opening is zero, store twice the value of the maximum value in the calculated gradient value in the light intensity at the time of opening of the microprocessor. In the storage unit of the intensity gradient, re-acquire a set of light intensity values;

If the gradient value of the light intensity when it is turned on is not zero, compare the calculated gradient value and the average value of the 5 gradient values with the stored gradient value when it is turned on, and the calculated gradient value is greater than the stored gradient value when it is turned on or The average gradient value is greater than the stored gradient value at the time of opening, average the average gradient value and the stored gradient value at the time of opening, store the result again in the storage unit of the gradient value at the time of opening, and collect a group of illumination again strength;

On the contrary, the calculated gradient value is not greater than the stored gradient value at the time of opening, and the average gradient value is not greater than the stored gradient value at the time of opening, the average gradient value and the stored gradient value at the time of opening are averaged, and the result Re-store in the storage unit of the gradient value when it is turned on, and turn on the light;

The microprocessor receives the light intensity signal and compares it with the switch stored in the microprocessor and the set value when it is turned off. When the light intensity reaches the set value for turning off the light, the microprocessor starts timing and records the current light intensity. Value U ₀ ;

Collect the light intensity signal every 10 seconds, repeat 5 times, and record the values U ₁ , U ₂ , U ₃ , U ₄ , U ₅ of the light intensity at that time;

Use ︱U ₁ -U ₀ ︱, ︱U ₂ -U ₁ ︱, ︱U ₃ -U ₂ ︱, ︱U ₄ -U ₃ ︱, ︱U ₅ -U ₄ ︱ to calculate the gradient value of the light intensity;

The calculated gradient value and the average value of 5 gradient values, if the gradient value of the light intensity is zero when it is turned off, store the double value of the maximum value in the calculated gradient value in the value of the light intensity when the microprocessor is turned off In the storage unit of the gradient, re-acquire a set of light intensity values;

If the gradient value of the light intensity is not zero when it is turned off, compare the calculated gradient value and the average value of the 5 gradient values with the stored gradient value when it is turned off, and the calculated gradient value is greater than the stored gradient value when it is turned off or If the average gradient value is greater than the stored off-time gradient value, average the average gradient value and the stored off-time gradient value, re-store the result in the storage unit of the off-time gradient value, and re-acquire a group of illumination strength;

On the contrary, the calculated gradient value is not greater than the stored gradient value at closing time, and the average gradient value is not greater than the stored closing gradient value, the average gradient value and the stored closing gradient value are averaged, and the result Re-store in the storage unit of the gradient value at the time of shutdown, and turn off the light.

The light intensity setpoint for turning on and off the lights is stored in the microprocessor at 20 lumens.

Claims (4)

1. a kind of Light Controlling Street Lamp Controller, including input power, it is characterized in that：Further include

Power circuit converts input power, respectively signal conditioning circuit, microprocessor, driving circuit and relay Power supply needed for circuit provides；

Light-sensitive element, for acquiring extraneous intensity of illumination；

Signal conditioning circuit, one end are connected with light-sensitive element, and one end is connected with microprocessor, the light for acquiring light-sensitive element It is changed into electric signal according to strength signal, is transported in microprocessor and handles after amplification；

Microprocessor is connected with signal conditioning circuit and driving circuit respectively, and the intensity of illumination signal of the outside of acquisition is carried out Processing, and control signal is input in driving circuit by treated；

Driving circuit, one end are connected with microprocessor, and one end is connected with relay circuit, for amplifying by microprocessor output Control signal；

Relay circuit, one end are connected with drive circuit, and one end is connected on the power supply line of light, for controlling opening for light It opens and closes.

2. Light Controlling Street Lamp Controller according to claim 1, it is characterized in that：The light-sensitive element is photo resistance.

3. Light Controlling Street Lamp Controller according to claim 1, it is characterized in that：The microprocessor is 89S52.

4. being used for the control method of Light Controlling Street Lamp Controller described in claim 1, characterized in that comprise the following steps：

The intensity of illumination setting value for opening and closing light is arranged by program for microprocessor, is stored in the storage list of microprocessor In member, the gradient value of intensity of illumination when opening and closing light is distributed to memory cell, and it is zero that initial value, which is arranged,；

Microprocessor receives intensity of illumination signal, is compared with the setting value when switch stored in microprocessor and closing, Intensity of illumination reaches the setting value for opening light, and microprocessor starts timing, and records the numerical value U of current intensity of illumination₀；

Intensity of illumination signal is acquired after 10 seconds, is repeated 5 times, and records the numerical value U of intensity of illumination at that time₁, U₂, U₃, U₄, U₅；

With ︱ U₁-U₀︱, ︱ U₂-U₁︱, ︱ U₃-U₂︱, ︱ U₄-U₃︱, ︱ U₅-U₄The gradient value of ︱ calculating intensity of illumination；

The average value of the gradient value of calculating and 5 gradient values will be counted if the gradient value of intensity of illumination is zero when the unlatching of storage The memory cell of the gradient of intensity of illumination when two multiple values of the maximum value in the gradient value of calculation are stored in the unlatching of microprocessor It is interior, resurvey one group of illumination intensity value；

If the gradient value of intensity of illumination is not zero when opening, by the average value and storage of the gradient value of calculating and 5 gradient values Unlatching when gradient value compare, the gradient value or average gradient value when the gradient value of calculating is greater than the unlatching of storage, which are greater than, deposits The gradient value when unlatching of storage, gradient value when by the unlatching of average gradient value and storage are averaged, and result is stored in again When unlatching in the memory cell of gradient value, one group of intensity of illumination is resurveyed；

On the contrary, the gradient value when gradient value calculated is no more than the unlatching stored, and average gradient value is no more than the unlatching of storage When gradient value, gradient value when by the unlatching of average gradient value and storage is averaged, ladder when result to be stored in unlatching again In the memory cell of angle value, light is opened；

Microprocessor receives intensity of illumination signal, is compared with the setting value when switch stored in microprocessor and closing, Intensity of illumination reaches the setting value for closing light, and microprocessor starts timing, and records the numerical value U of current intensity of illumination₀；

Intensity of illumination signal is acquired after 10 seconds, is repeated 5 times, and records the numerical value U of intensity of illumination at that time₁, U₂, U₃, U₄, U₅；

With ︱ U₁-U₀︱, ︱ U₂-U₁︱, ︱ U₃-U₂︱, ︱ U₄-U₃︱, ︱ U₅-U₄The gradient value of ︱ calculating intensity of illumination；

By the average value of the gradient value of calculating and 5 gradient values, if the gradient value of intensity of illumination is zero when closing, by calculating When two multiple values of the maximum value in gradient value are stored in the closing of microprocessor in the memory cell of the gradient of intensity of illumination, weight Newly one group of illumination intensity value of acquisition；

If the gradient value of intensity of illumination is not zero when closing, by the average value and storage of the gradient value of calculating and 5 gradient values Closing when gradient value compare, the gradient value or average gradient value when the gradient value of calculating is greater than the closing of storage, which are greater than, deposits The gradient value when closing of storage, gradient value when by the closing of average gradient value and storage are averaged, and result is stored in again When closing in the memory cell of gradient value, one group of intensity of illumination is resurveyed；

On the contrary, the gradient value when gradient value calculated is no more than the closing stored, and average gradient value is no more than the closing of storage When gradient value, gradient value when by the closing of average gradient value and storage is averaged, and result is stored again terraced when closed In the memory cell of angle value, light is closed.