CN114189032B

CN114189032B - Solar power supply control circuit

Info

Publication number: CN114189032B
Application number: CN202111536603.XA
Authority: CN
Inventors: 郝长青
Original assignee: Liaoning Kuntai Solar Energy Technology Co ltd
Current assignee: Liaoning Kuntai Solar Energy Technology Co ltd
Priority date: 2021-12-16
Filing date: 2021-12-16
Publication date: 2024-05-07
Anticipated expiration: 2041-12-16
Also published as: CN114189032A

Abstract

Solar power supply control circuit belongs to power supply control technical field, especially relates to a solar power supply control circuit. The invention provides a solar power supply control circuit with good use effect. The invention comprises a direct current motor control part, a key control part, an LED indication part, a temperature and humidity detection part, a CPU control part and a power supply part, wherein a control signal input port of the direct current motor control part is connected with a control signal output port of the CPU control part, a control signal output port of the key control part is connected with a control signal input port of the CPU control part, a control signal input port of the LED indication part is connected with a control signal output port of the CPU control part, and a detection signal output port of the temperature and humidity detection part is connected with a detection signal input port of the CPU control part.

Description

Solar power supply control circuit

Technical Field

The invention belongs to the technical field of power supply control, and particularly relates to a solar power supply control circuit.

Background

The painting and calligraphy works are paper from ancient times, paper is the least easy to store, however, the painting and calligraphy works like many ancient times are difficult to store completely, and many historical relics which are seen by people at present are repaired by professional people. If the paper cultural relics are not properly stored, the paper cultural relics are easy to damage and deteriorate, so that carelessness can occur, and maintenance of the painting and calligraphy is not negligible. At present, the painting and calligraphy are mainly manually operated, and the painting and calligraphy are difficult to accurately protect due to uneven smearing of the anti-corrosive materials. Therefore, an anti-corrosion device with good use effect needs to be designed, and a solar power supply control circuit matched with the anti-corrosion device needs to be designed.

Disclosure of Invention

The invention aims at the problems and provides a solar power supply control circuit with good use effect.

In order to achieve the above purpose, the invention adopts the following technical scheme that the invention comprises a direct current motor control part, a key control part, an LED indication part, a temperature and humidity detection part, a CPU control part and a power supply part, wherein a control signal input port of the direct current motor control part is connected with a control signal output port of the CPU control part, a control signal output port of the key control part is connected with a control signal input port of the CPU control part, a control signal input port of the LED indication part is connected with a control signal output port of the CPU control part, a detection signal output port of the temperature and humidity detection part is connected with a detection signal input port of the CPU control part, and an electric energy output port of the power supply part is respectively connected with a power supply port of the direct current motor control part, a power supply port of the key control part, a power supply port of the LED indication part, a power supply port of the temperature and humidity detection part and a power supply port of the CPU control part, and an input port of the power supply part is connected with an output port of a solar power supply part.

As another preferable scheme, the direct current motor control part comprises a resistor R21, wherein one end of the resistor R21 is respectively connected with the cathodes of an M1 and a light-emitting diode D10, the other end of the resistor R21 is respectively connected with one end of an M2 and one end of a resistor R22 through a light-emitting diode D9, and the other end of the resistor R22 is connected with the anode of the D10;

PWM1 is connected with the base electrode of NPN diode Q4 through resistor R10, the emitter electrode of Q4 is grounded, the collector electrode of Q4 is connected with the cathode of the input end of OPTOISO chip U2, and the anode of the input end of U2 is connected with 3.3VDD through resistor R3; the emitter of the output end of the U2 is grounded through a resistor R9, the collector of the output end of the U2 is respectively connected with one end of a resistor R4 and one end of a resistor R6, the other end of the R4 is connected with 24V, the other end of the R6 is respectively connected with the anode of a 1N4744 tube D1 and the grid electrode of an IRF9405 tube Q1, the drain electrode of the Q1 is respectively connected with the cathode of the D1, one end of a fuse F1, the cathode of a diode D3, one end of a capacitor C1, the cathode of the 1N4744 end D2, the drain electrode of the IRF9405 tube Q2, the cathode of the diode D4 and one end of the capacitor C2, and the other end of the F1 is connected with 24V;

The source electrode of the Q1 is respectively connected with the anode of the D3, the other end of the C1, the M1, one end of the motor MG1, one end of the capacitor C3, the drain electrode of the IRF540N tube Q5, the cathode of the diode D5 and one end of the capacitor C4; the grid electrode of the Q5 is respectively connected with the cathode of a 1N4744 tube D7 and one end of a resistor R16, the anode of the D7 is respectively connected with the ground and one end of a resistor R19, the other end of the R19 is respectively connected with the other end of the R16 and the emitter of the OPTOISO chip U4 output end, the collector of the U4 output end is connected with 24V through a resistor R14, the anode of the U4 input end is connected with 3.3VDD through a resistor R13, the cathode of the U4 input end is connected with the collector of an NPN triode Q8, the emitter of the Q8 is grounded, and the base of the Q8 is connected with PWM3 through a resistor R20;

The source electrode of the Q5 is respectively connected with the anode electrode of the D5, the other end of the C4, the source electrode of the IRF540N tube Q6, the anode electrode of the diode D6, the ground, one end of the capacitor C5 and the anode electrode of the 1N4744 tube D8, the cathode electrode of the D8 is respectively connected with the grid electrode of the Q6 and one end of the resistor R15, the other end of the R15 is respectively connected with one end of the resistor R17 and the emitter electrode of the U3 output end of the P521 chip, the collector electrode of the U3 output end is connected with 24V through the resistor R12, the cathode electrode of the U3 input end is connected with the collector electrode of the NPN triode Q7, the emitter electrode of the Q7 is grounded, the base electrode of the Q7 is connected with PWM4 through the resistor R18, and the anode electrode of the U3 input end is connected with +3V through the resistor R11;

The grid electrode of the Q2 is respectively connected with the anode of the D2, the other end of the MG1, the other ends of the M2 and the C3, the drain electrode of the Q6, the cathode of the D6, the other end of the C5 and one end of the resistor R5, and the source electrode of the Q2 is respectively connected with the anode of the D4 and the other end of the capacitor C2;

The other end of R5 is respectively connected with one end of a resistor R2 and the collector of the output end of a P521 chip U1, the emitter of the output end of the U1 is grounded through a resistor R7, the anode of the input end of the U1 is connected with +3V through a resistor R1, the cathode of the input end of the U1 is connected with the collector of an NPN triode Q3, the emitter of the Q3 is grounded, and the base of the Q3 is connected with PWM2 through a resistor R8.

As another preferable scheme, the key control part of the invention comprises resistors R25, R26, R28 and R29, wherein one end of R25, one end of R26, one end of R28 and one end of R29 are connected with 3.3vdd, the other end of R25 is connected with PA8 through a switch SW1, the other end of R26 is connected with PA9 through a switch SW2, the other end of R28 is connected with PA10 through a switch SW3, and the other end of R29 is connected with PA11 through a switch SW 4.

As another preferable scheme, the LED indication part of the present invention includes resistors R32, R33, R35, wherein one end of R32 is connected to LED1, and the other end of R32 is grounded through light emitting diode D11; one end of R33 is connected with the LED2, and the other end of R33 is grounded through the light-emitting diode D12; one end of R35 is connected with the LED3, and the other end of R35 is grounded through the light-emitting diode D13.

As another preferable scheme, the temperature and humidity detection part comprises AHT20 chips A1 and A2, wherein the pin 2 of A1 is respectively connected with one end of a capacitor C6, one end of a resistor R23 and 3.3VDD, the pin 3 of A1 is respectively connected with the other ends of PB6 and R23, the pin 4 of A1 is respectively connected with the other ends of PB7 and R24, the pin 5 of A1 is connected with GND, and the other end of C6 is connected with GND;

The pin 2 of A2 is respectively connected with one end of a capacitor C9, one end of a resistor R30, 3.3VDD and one end of a resistor R31, the pin 3 of A2 is respectively connected with the other ends of PB10 and R30, the pin 4 of A2 is respectively connected with the other ends of PB11 and R31, the pin 5 of A2 is connected with GND, and the other end of C9 is connected with GND.

Secondly, the CPU control part adopts an STM32F103C8T6 chip U5, 29 to 32 pins of the U5 are respectively and correspondingly connected with PA8 to PA11, 5 pins of the U5 are respectively connected with one end of a resistor R27, one end of a crystal oscillator X1 and one end of a capacitor C7, the other end of the C7 is respectively connected with one end of a GND and one end of a capacitor C8, and the other end of the C8 is respectively connected with the other end of the X1, the other end of the R27 and the 6 pins of the U5;

The pin 44 of the U5 is connected with GND, the pin 7 of the U5 is respectively connected with one end of the switch S1 and one end of the capacitor C10, and the other end of the capacitor C10 is respectively connected with the other ends of the GND and the S1;

The pins 24, 36 and 48 of U5 are connected with 3.3VDD, the pin 9 of U5 is respectively connected with one end of a resistor R34 and one end of a capacitor C11, the other end of the resistor R34 is connected with 3.3VDD, and the other end of the capacitor C11 is grounded;

pins 8, 47, 35 and 23 of U5 are connected with GND;

The pins 2, 3 and 4 of the U5 are correspondingly connected with the LED2, the LED1 and the LED2 respectively;

The 25-28 feet of U5 are correspondingly connected with PWM 1-PWM 4 respectively, and the 21-22 feet of U5 are correspondingly connected with PB10 and PB11 respectively; pins 42 and 43 of U5 are respectively connected with PB6 and PB7 correspondingly; the 20 pins of U5 are connected with GND.

In addition, the power supply part comprises a connector JP1, wherein the pin 2 of the JP1 is respectively connected with one end of a capacitor C21, the positive electrode of the capacitor C18 and the pin 1 of a LM2576-5.0 chip U10 through a diode D14, and the pin 1 of the JP1 is respectively connected with the other end of the capacitor C21, the negative electrode of the C18, the pin 3 of the U10, the pin 5 of the U10, the anode of a voltage stabilizing tube DZ1, one end of the capacitor C19, the negative electrode of the capacitor C13, the pin 1 of the AMS1117-3.3 chip U6, one end of the capacitor C20, the negative electrode of the capacitor C12 and the cathode of a diode D15;

The 2 feet of U10 link to each other with DZ1 negative pole, inductance L2 one end respectively, the L2 other end links to each other with electric capacity C19 one end, U10's 4 feet, VCC, C13 positive pole, U6's 3 feet respectively, U6's 2 feet link to each other with the C20 other end, C12 positive pole, 3.3VDD, resistance R37 one end, resistance R36 one end respectively, R37 other end termination D15 positive pole, the R36 other end links to each other with electric capacity C14 one end, electric capacity C15 one end, inductance L1 one end respectively, the C14 other end links to each other with the C15 other end respectively, electric capacity C16 one end, electric capacity C17 one end, ground links to each other, the L1 other end links to each other with 3.3VDD, the C16 other end, the C17 other end respectively.

The invention has the beneficial effects that.

The CPU control part receives the detection signal input by the temperature and humidity detection part, controls the direct current motor through the direct current motor control part, and also controls the direct current motor through the key control part, the LED indication part indicates the related condition, and the power supply part supplies power to each part. The reliable and accurate control of the direct current motor is completed through the mutual matching of the parts.

Drawings

The invention is further described below with reference to the drawings and the detailed description. The scope of the present invention is not limited to the following description.

Fig. 1 is a schematic circuit diagram of a dc motor control section of the present invention.

Fig. 2 is a schematic circuit diagram of a key control part of the present invention.

Fig. 3 is a schematic circuit diagram of an LED indicator portion of the present invention.

FIG. 4 is a schematic circuit diagram of a temperature and humidity sensing portion of the present invention.

FIG. 5 is a schematic circuit diagram of the CPU control portion of the present invention.

Fig. 6 is a schematic diagram of a power supply portion of the present invention.

Fig. 7 is a schematic view of the structure of the present invention.

Fig. 8 is a schematic view of the structure of the preservative spraying portion of the present invention.

Fig. 9 is a schematic view of the structure of the dehumidifying part of the present invention.

Fig. 10 is a schematic view of the structure of the spray head of the present invention.

FIG. 11 is a schematic view of the structure of the calligraphy and painting unfolding locking part of the present invention.

Fig. 12 is a schematic circuit diagram of the solar CPU control section of the present invention.

Fig. 13 is a schematic diagram of the timer circuit of the present invention.

Fig. 14 is a schematic circuit diagram of a solar LED indicator portion of the present invention.

Fig. 15 is a schematic diagram of a portion of the circuit of the solar power supply of the present invention.

Fig. 16 is a schematic circuit diagram of a charge-discharge control section of the present invention.

Fig. 17 is a schematic circuit diagram of a portion of a terminal of the present invention.

In the figure, 1 is a cover plate, 2 is a preservative spraying part, 3 is a calligraphy and painting unfolding and locking part, 4 is a dehumidifying part, 5 is a box body, 6 is a locking nut, 7 is an AHT20 chip, 8 is a shell, 9 is a conical sleeve, 10 is a conical barrel nozzle, 11 is a liquid feeding channel, 12 is a preservative, 13 is a hinge, 14 is an upper cover, 15 is an upper magnet, 16 is a lower magnet, 17 is a box body, 18 is an air suction main pipe, and 19 is an air feeding pipe.

Detailed Description

As shown in the figure, the solar power supply control circuit can be applied to an anti-corrosion device, the anti-corrosion device comprises a box body 5, the upper end of the box body 5 is provided with a cover plate 1, a dehumidifying part 4, an anti-corrosion agent spraying part 2 and a calligraphy and painting unfolding locking part 3 are arranged in the box body 5, the calligraphy and painting unfolding locking part 3 is arranged above the dehumidifying part 4 and the anti-corrosion agent spraying part 2, and a calligraphy and painting rotating shaft placing groove matched with the calligraphy and painting unfolding locking part 3 is formed in one side of the box body 5.

When the anti-corrosion device is used, the calligraphy and painting is unfolded and fixed above the dehumidifying part 4 and the anti-corrosion agent spraying part 2 through the calligraphy and painting unfolding and locking part 3 and the calligraphy and painting rotating shaft placing groove, the dehumidifying part 4 and the anti-corrosion agent spraying part 2 can dehumidify and spray the unfolded calligraphy and painting, and the device replaces manual operation, so that the efficiency and the reliability of the anti-corrosion operation of the calligraphy and painting are improved.

After the spraying of the preservative is finished, the drying operation can be performed through the dehumidifying part.

The dehumidification part 4 comprises a direct current air compressor, an inlet of the direct current air compressor is connected with an outlet of an air suction main pipe, and an inlet of the air suction main pipe is connected with an outlet at the lower end of the vertical air suction branch pipe.

The preservative spraying part 2 comprises a filter plate, wherein the inlet of the filter plate is connected with an air inlet pipe, the outlet of the filter plate is connected with the inlet of the direct current air compressor, the outlet of the direct current air compressor is connected with the inlet of an air supply pipe, and the outlet of the air supply pipe is connected with the inlet of the spray head.

The direct current air compressor adopts an ASD-165DC type direct current air compressor.

The spray head comprises a shell with an open upper end, wherein the middle inlet of the lower end of the shell is connected with the outlet of the air supply pipe, the middle inlet of the lower end of the shell extends upwards to form a conical barrel nozzle, a conical sleeve is sleeved outside the conical barrel nozzle, the inner wall of the conical sleeve is connected with the outer wall of the conical barrel nozzle (the connecting part is not cut in the cut-away view in the figure), a gap between the lower end of the conical sleeve and the lower end of the conical barrel nozzle is a nozzle liquid inlet, and a gap between the upper end of the conical sleeve and the upper end of the conical barrel nozzle is a nozzle atomization spray outlet. In the process of blowing air from the thick pipe diameter at the bottom to the thin pipe diameter at the upper end of the nozzle, the blowing path is gradually narrowed, negative pressure is generated at the upper end of the nozzle, preservative in the nozzle in the siphon principle is sucked to the upper end of the nozzle through a liquid blowing channel (a gap between the conical sleeve and the conical barrel), and air flow at the upper end of the nozzle is sprayed out in a mist form with the preservative.

The liquid medicine in the spray head can be filled manually.

The calligraphy and painting unfolding locking part 3 comprises a strip-shaped box body, wherein the upper end of the box body is connected with an upper cover through a hinge, an upper magnet is arranged at the outer end of the upper cover, a lower magnet is arranged on the box body corresponding to the upper magnet, guide screws are arranged at two ends of the box body, the guide screws penetrate through horizontal strip-shaped guide openings at the upper parts of two sides of the box body 5, and locking nuts are screwed on the parts, which are arranged on the outer sides of the box body, of the guide screws.

The calligraphy and painting rotating shaft holding groove can adopt two upper end open-ended arc grooves, and the arc grooves set up in 5 one side both ends of box, and the both ends of calligraphy and painting one side pivot can set up in the arc grooves and rotatable, and calligraphy and painting one side pivot sets up in the box body, later closes the upper cover, and upper and lower magnet actuation presss from both sides tight calligraphy and painting tip, and the manual work slides the box body to suitable position, reaches the calligraphy and painting expansion area of requirement, the position of the fixed box body of lock nut. The box body can transversely move along the guide opening and be positioned, so that the calligraphy and painting with different sizes can be installed and fixed, and the calligraphy and painting is fixed and leveled, and then the cover plate 1 is covered.

The calligraphy and painting rotating shaft placing groove can also adopt a structure that a hinge upper cover is added with a magnet, and the other side of the calligraphy and painting is clamped after the calligraphy and painting is unfolded.

The driving circuit of the motor of the direct current air compressor (namely the solar power supply control circuit of the invention) comprises a direct current motor control part, a key control part, an LED indication part, a temperature and humidity detection part, a CPU control part and a power supply part, wherein a control signal input port of the direct current motor control part is connected with a control signal output port of the CPU control part, a control signal output port of the key control part is connected with a control signal input port of the CPU control part, a control signal input port of the LED indication part is connected with a control signal output port of the CPU control part, a detection signal output port of the temperature and humidity detection part is connected with a detection signal input port of the CPU control part, and an electric energy output port of the power supply part is respectively connected with a power supply port of the direct current motor control part, a power supply port of the key control part, a power supply port of the LED indication part, a power supply port of the temperature and humidity detection part and a power supply port of the CPU control part.

The direct current motor control part comprises a resistor R21, one end of the resistor R21 is respectively connected with the cathodes of the M1 and the light-emitting diode D10, the other end of the resistor R21 is respectively connected with one ends of the M2 and the resistor R22 through the light-emitting diode D9, and the other end of the resistor R22 is connected with the anode of the D10; d9 and D10 are used to display the forward and reverse rotation states of the motor;

The source electrode of the Q1 is respectively connected with the anode of the D3, the other end of the C1, the M1, one end of the motor MG1 (a direct current speed reduction motor with the model of 22GXR14K4D can be adopted), one end of the capacitor C3, the drain electrode of the IRF540N tube Q5, the cathode of the diode D5 and one end of the capacitor C4; the grid electrode of the Q5 is respectively connected with the cathode of a 1N4744 tube D7 and one end of a resistor R16, the anode of the D7 is respectively connected with the ground and one end of a resistor R19, the other end of the R19 is respectively connected with the other end of the R16 and the emitter of the OPTOISO chip U4 output end, the collector of the U4 output end is connected with 24V through a resistor R14, the anode of the U4 input end is connected with 3.3VDD through a resistor R13, the cathode of the U4 input end is connected with the collector of an NPN triode Q8, the emitter of the Q8 is grounded, and the base of the Q8 is connected with PWM3 through a resistor R20;

When the PWM1 and PWM4 are simultaneously turned on, the motor rotates forward at maximum speed, and when the motor outputs at different duty ratios, the motor operates at a reduced speed. The same PWM2 and PWM3 are simultaneously opened, the motor is reversed at the maximum speed, the output is at different duty ratios, and the motor is in decelerating operation. The forward and reverse rotation speeds are controllable. The optocoupler is used for isolating the driving signal and the control signal and protecting the control chip.

M1, M2 are the two power terminals of the motor. The direct current motor control part is equivalent to an H bridge circuit, and the upper left (pwm 1) and the lower right (pwm 4) of the H bridge are simultaneously opened to control the motor to rotate in one direction (spray preservative), and the rotating speed (spray more or less) can also be controlled.

The pwm2 and the pwm3 are simultaneously opened, the motor is controlled to rotate in the other direction (air suction is performed to accelerate drying when needed), and the rotating speed (wind speed) can be controlled. The rotation of the motor in one direction is to spray preservative, and the rotation in the other direction is to suck and dehumidify. As shown in fig. 1, the suction main pipe 18 of the dehumidifying part 4 and the air supply pipe 19 of the preservative spraying part 2 may employ two pipes arranged in parallel, the ends of the two pipes may be connected to a main pipe, and the main pipe is connected to a direct current air compressor. The suction main pipe of the dehumidifying part 4 and the air supply pipe end of the preservative spraying part 2 are respectively provided with a switch valve (which can be controlled by a control circuit through an electromagnetic valve), when the preservative needs to be sprayed, the switch valve on the air supply pipe of the preservative spraying part 2 is opened, and the motor rotates in one direction. When the air suction dehumidification is needed, a switch valve on an air suction main pipe of the dehumidification part 4 is opened, and the motor rotates in the other direction.

When pwm1, pwm4 are on, pwm2, pwm3 is off. I.e. pwm1, pwm4 and pwm2, pwm3 cannot be opened simultaneously.

The key control part comprises resistors R25, R26, R28 and R29, wherein one end of R25, one end of R26, one end of R28 and one end of R29 are connected with 3.3VDD, the other end of R25 is connected with PA8 through a switch SW1, the other end of R26 is connected with PA9 through a switch SW2, the other end of R28 is connected with PA10 through a switch SW3, and the other end of R29 is connected with PA11 through a switch SW 4. SW1 is a start operation key, SW2 is a manual motor reversing key, SW3 is a system reset key, and SW4 is a stop operation key.

The LED indication part comprises resistors R32, R33 and R35, one end of the R32 is connected with the LED1, and the other end of the R32 is grounded through a light emitting diode D11; one end of R33 is connected with the LED2, and the other end of R33 is grounded through the light-emitting diode D12; one end of R35 is connected with the LED3, and the other end of R35 is grounded through the light-emitting diode D13. D11 is an operation indicator lamp, D12 is a fault alarm indicator lamp (the alarm can be set at a temperature lower than 12 ℃ or higher than 28 ℃ and the alarm can be set at a humidity lower than 30% or higher than 78%), the too dry painting and calligraphy works are easy to fall off the color powder, and the too wet papers are easy to be feathered. Detecting the temperature and humidity of the environment, controlling different rotating speeds of a motor under different temperature and humidity conditions (the motor is controlled to start at full speed when the temperature is higher than 28 ℃ or the humidity is higher than 78%, so that the temperature and humidity of the surface of the painting and calligraphy are reduced, and the rotating speed of the motor is reduced proportionally with the reduction of the temperature and humidity, because the temperature reaches about 28 ℃, the relative humidity reaches about 78%, mold can be greatly propagated, and an enzyme is secreted, the hydrolysis and the destruction of cellulose are accelerated, and meanwhile, the organic acid is decomposed, the acidity of paper is increased.

The temperature and humidity detection part comprises AHT20 chips A1 and A2, wherein the 2 pin of A1 is respectively connected with one end of a capacitor C6, one end of a resistor R23 and 3.3VDD, the 3 pin of A1 is respectively connected with the other ends of PB6 and R23, the 4 pin of A1 is respectively connected with the other ends of PB7 and R24, the 5 pin of A1 is connected with GND, and the other end of C6 is connected with GND;

By adopting two AHT20 chips, the temperature and humidity are compositely collected (the temperature and humidity ratio of calligraphy and painting can be set to be 70%, the environment ratio is 30%, and finally the temperature and humidity are finally determined by adopting a weighted average mode), different temperature and humidity values are collected at different positions, and the accurate temperature and humidity value judgment can be updated. As shown in FIG. 4, one of the AHT20 chips may be disposed on the inner wall of the nozzle and near the outlet of the nozzle, and the temperature and humidity of the nozzle are collected (the nozzle is close to the calligraphy and painting, and the temperature and humidity of the nozzle are collected as the calligraphy and painting temperature and humidity) and may be connected by fastening or welding. The other AHT20 chip can be arranged at the central part of the cover plate 1 to detect the temperature and humidity value of the environment and can be connected by adopting a fastening piece or a welding mode.

The invention adopts accurate electronic components to judge the temperature and humidity, automatically controls the spraying of the anti-corrosion material, has more accurate spraying quantity (AHT 20 is an MEMS temperature and humidity sensor of I2C interface generated by Orthon in China, and the ADC Bit number is 20Bit, thereby having the advantages of small volume, high precision, low cost and the like) and playing a good role in protection.

The data collected by the temperature and humidity sensor (the temperature is 15-18 ℃ and the humidity is 55-65% of the optimal maintenance state of the painting and calligraphy, the temperature is increased, the motor rotation speed is also reduced along with the reduction of the temperature, the motor speed increasing and decreasing ratio is 10%, the higher the temperature is, the larger the amount of sprayed preservative is, the one-day spraying of the preservative can be set), and the preservative is transmitted to PB6, PB7, PB10 and PB11 in an I-C communication mode. The singlechip controls the motor speed through the acquired data.

The CPU control part adopts STM32F103C8T6 chip U5, pins 29-32 of U5 are respectively and correspondingly connected with PA 8-PA 11, pin 5 of U5 is respectively connected with one end of resistor R27, one end of crystal oscillator X1 and one end of capacitor C7, the other end of C7 is respectively connected with GND and one end of capacitor C8, and the other end of C8 is respectively connected with the other end of X1, the other end of R27 and 6 pins of U5;

the 44 pins of the U5 are connected with GND, the 7 pins of the U5 are respectively connected with one end of a switch S1 (manual reset key) and one end of a capacitor C10, and the other end of the capacitor C10 is respectively connected with the GND and the other end of the switch S1;

pins 8, 47, 35 and 23 of U5 are connected with GND;

U5 firstly collects the temperature and humidity of the environment and the spray head, and determines the final temperature and humidity after weighted average. When the temperature is higher than 28 ℃,100% of the spray coating is carried out, and the spray coating amount is reduced by 10% according to the reduction of the temperature. When the humidity is higher than 78%, the air suction rate is 100%, and the air suction rate is reduced by 10% along with the reduction of the humidity. Finally, the optimum temperature and humidity range of the painting and calligraphy which accords with the preservation is achieved.

U5 gathers the humiture of spout and environment, controls the steering and the rotational speed of motor, namely controls the spraying and the induced draft (the spraying of temperature more than 28 ℃ C., humidity is greater than 78% induced draft of motor if satisfying these two conditions simultaneously, induced draft dehumidification is carried out first, then spraying).

The invention can also control the spraying and suction of the system manually (controlled by manual keys SW1, SW2, SW3, SW 4). The spraying and air suction states are displayed through the indicator lamp (the LED1 is an operation indicator lamp, the LED2 is a spraying indicator lamp, and the LED3 is an air suction indicator lamp).

The power supply part comprises a connector JP1, wherein the pin 2 of the JP1 is respectively connected with one end of a capacitor C21, the positive electrode of the capacitor C18 and the pin 1 of an LM2576-5.0 chip U10 through a diode D14, and the pin 1 of the JP1 is respectively connected with the other end of the capacitor C21, the negative electrode of the C18, the pin 3 of the U10, the pin 5 of the U10, the anode of a voltage stabilizing tube DZ1, one end of a capacitor C19, the negative electrode of the capacitor C13, the pin 1 of the AMS1117-3.3 chip U6, one end of a capacitor C20, the negative electrode of the capacitor C12 and the cathode of a diode D15;

The 2 feet of U10 link to each other with DZ1 negative pole, inductance L2 one end respectively, the L2 other end links to each other with electric capacity C19 one end, U10's 4 feet, VCC, C13 positive pole, U6's 3 feet respectively, U6's 2 feet link to each other with the C20 other end, C12 positive pole, 3.3VDD, resistance R37 one end, resistance R36 one end respectively, R37 other end termination D15 positive pole, the R36 other end links to each other with electric capacity C14 one end, electric capacity C15 one end, inductance L1 one end respectively, the C14 other end links to each other with the C15 other end respectively, electric capacity C16 one end, electric capacity C17 one end, ground links to each other, the L1 other end links to each other with 3.3VDD, the C16 other end, the C17 other end respectively. The power supply portion 24V input 3.3V output.

LM2576-5.0, LM2576 series is the 3A current output buck switch type integrated voltage stabilizing circuit produced by the semiconductor company of the United states, it contains fixed frequency oscillator (52 kHz) and reference voltage stabilizer (1.23V), and have perfect protective circuit, including the current limit and thermal cut-off circuit, etc., utilize this device to need very few peripheral devices to form the high-efficient voltage stabilizing circuit. AMS1117-3.3, AMS1117-3.3 is a forward low voltage drop voltage stabilizer with an output voltage of 3.3V, and is suitable for a high-efficiency linear voltage stabilizer to release a power management battery-powered instrument of a small computer system interface terminal notebook computer with an active battery charger of a switching power supply voltage stabilizer.

The preservative comprises, by weight, 6-9 parts of sodium silicate, 10-15 parts of magnesium chloride, 5-6 parts of aluminum sulfate, 4-5 parts of aluminum nitrate, 25-30 parts of siloxane and 50-55 parts of water.

The preparation method of the preservative comprises the following steps: and (3) placing sodium silicate, magnesium chloride, aluminum sulfate, aluminum nitrate and water into a stirring kettle, stirring for 20-40 minutes, adding siloxane, and stirring for 15 minutes.

Preservative example 1: the components comprise 9 parts of sodium silicate, 10 parts of magnesium chloride, 6 parts of aluminum sulfate, 4 parts of aluminum nitrate, 25 parts of siloxane and 50 parts of water according to the weight ratio. And (3) placing sodium silicate, magnesium chloride, aluminum sulfate, aluminum nitrate and water into a stirring kettle, stirring for 20-30 minutes, adding siloxane, and stirring for 15 minutes.

Preservative example 2: the components comprise 6 parts of sodium silicate, 15 parts of magnesium chloride, 6 parts of aluminum sulfate, 4 parts of aluminum nitrate, 30 parts of siloxane and 50 parts of water according to the weight ratio. And (3) placing sodium silicate, magnesium chloride, aluminum sulfate, aluminum nitrate and water into a stirring kettle, stirring for 30-35 minutes, adding siloxane, and stirring for 10 minutes.

Preservative example 3: the components comprise 9 parts of sodium silicate, 15 parts of magnesium chloride, 6 parts of aluminum sulfate, 5 parts of aluminum nitrate, 30 parts of siloxane and 55 parts of water in parts by weight. And (3) placing sodium silicate, magnesium chloride, aluminum sulfate, aluminum nitrate and water into a stirring kettle, stirring for 40 minutes, adding siloxane, and stirring for 15 minutes.

The input port of the power supply part is connected with the output port of the solar power supply part.

The solar power supply part comprises a solar CPU control part, a timer circuit, a solar LED indication part, a solar power supply part, a charge and discharge control part and a wiring terminal part, wherein a signal transmission port of the solar CPU control part is connected with a signal transmission port of the timer circuit, a control signal output port of the solar CPU control part is connected with a control signal input port of the solar LED indication part, an electric energy output port of the solar power supply part is respectively connected with a power supply port of the solar CPU control part, a power supply port of the timer circuit, a power supply port of the solar LED indication part and a power supply port of the charge and discharge control part, and the wiring terminal part is respectively connected with the charge and discharge control part and an input port of a power supply part of a driving circuit of the motor.

The solar CPU control part comprises an ATMEGA8L chip U11, 1 to 4 pins of the U11 are respectively and correspondingly connected with 4 to 1 pins of a 5P dial switch S1, 6 to 10 pins of the S1 are grounded, 1 to 5 pins of the S1 are respectively and correspondingly connected with 2 to 6 pins of an exclusion RP, and 1 pin of the RP is connected with VDD;

The pin 6 of U11 is connected with one end of a capacitor C4 and one end of a crystal oscillator CRY respectively, the other end of C4 is connected with ground, one end of a capacitor C3 and one end of a capacitor C2 respectively, the other end of C3 is connected with the other end of CRY and the pin 7 of U11 respectively, and the other end of C2 is connected with the pins 8 of VCC and U11 respectively;

The 10 feet of U11 are respectively connected with RESTB, one end of a resistor R5 and one end of a capacitor C6, the other end of the resistor R5 is connected with/RESTB, the other end of the capacitor C6 is connected with the ground, the 11-16 feet of U11 are respectively correspondingly connected with P2.4, P2.5, P2.3, P2.2, P2.1 and P2.0, the 17-20 feet of U11 are respectively correspondingly connected with the 9, 3, 8 and 4 feet of a connector P2, the 24 feet of U11 are respectively connected with one end of a resistor R3, one end of a resistor R4, one end of a capacitor C1 and the cathode of a diode D19, one end of R3 is connected with B+, and the anode of D19 is respectively connected with the other end of C1, the other end of R4 and the ground;

The 25 pin of U11 is connected with one end of a resistor R1, one end of a resistor R2, the cathode of a diode D18 and one end of a capacitor C5, the other end of the resistor R2 is connected with CELL+, and the other end of the resistor R1 is connected with the anode of B-, the anode of D18 and the other end of the capacitor C5 respectively;

the 32 pins of U11 are connected with the 5 pins of S1.

U11 gathers photovoltaic module and battery's voltage (photovoltaic module gathers through R2, R1 resistance partial pressure gathers, and battery voltage gathers through R3, R4 partial pressure), and U11 is through judging the voltage of battery and is in what state, if battery voltage is 28.8V, then closes the circuit that the subassembly charges for the battery. If the voltage of the storage battery is lower than 22.2V, the output circuit of the system is closed, and the storage battery is protected from being over discharged. The low pressure is 27.2V, the system is directly charged, and the system floating charge is higher than 27.2 and lower than 28.8V. If the voltage of the storage battery is too low, the storage battery cannot be output (the output of the system is controlled by controlling the switch of the MOS tube N1, the N1 is opened, the L-is connected with the ground, the system is output, otherwise, the L-is closed with the ground, and the system is output to be closed), so that the storage battery is protected. U11 controls the photovoltaic module to charge and discharge the storage battery (controlling the charging is through a MOS tube T1 and related auxiliary circuits; controlling the discharging is through a MOS tube N1 and related auxiliary circuits), and if the storage battery is overcharged (the overcharged and the overdischarged are obtained through voltage division and acquisition of resistors R1, R2, R3 and R4, the voltage of the module and the storage battery is acquired in real time in the process of charging and discharging to judge the voltage state of the system), the charging of the storage battery is stopped.

The timer circuit adopts MAX706R chip U12, U12's 1 foot is connected with switch SW-PB one end respectively, diode D1 positive pole, SW-PB other end ground connection, D1 negative pole connects U12's 8 feet, U12's 2 feet are connected with VCC, electric capacity C7 one end respectively, the C7 other end is connected with ground, U12's 3 feet, U12's 4 feet respectively, U12's 6 feet are connected with resistance R6 one end, P2.3 respectively, R6 other end termination VDD, U12's 7 feet connect/RST, connector J1 (for external reset or inside reset) 1,2 feet are connected with/RESTB,/RST respectively.

The solar LED indication part comprises VCC, wherein VCC is respectively connected with a light emitting diode D2 anode and a light emitting diode D2 anode, a D2 cathode is connected with P2.1 through a resistor R7, and a D3 cathode is connected with P2.2 through a resistor R8. D2 and D3 are status indicator lamps, indicating whether the load is in output or in charge/discharge status.

The solar power supply part adopts an LM2576-3.3 chip U13, a pin 1 of the U13 is respectively connected with a cathode of a diode D4 and an anode of a capacitor CC1, an anode of the D4 is connected with B+ and a cathode of the CC1 is connected with GND, pins 3, 5 and 6 of the U13 are connected with GND, a pin 2 of the U13 is respectively connected with a cathode of a voltage stabilizing tube D5 and one end of an inductor L1, an anode of the D5 is connected with GND, the other end of the L1 is respectively connected with an anode of the capacitor CC2, one end of the capacitor C8, the pins VCC and 4 of the U13, and the other ends of the cathode of the CC2 and the C8 are connected with GND.

B+, B-is connected with a storage battery, CELL+, CELL-is connected with a solar panel, and L+ and L-are connected with a load.

The charge and discharge control part comprises CELL+ and CELL+ which are connected with CELL-through a diode D16, B+ is connected with the positive electrode of a capacitor C10, the negative electrode of a diode D15, the collector of an NPN triode Q9 and one end of a resistor R20 respectively through a diode D14 and a resistor R24 in sequence, the negative electrode of the C10 is connected with the positive electrode of the D15, CELL-, one end of the capacitor C11, one end of a resistor R23, the source electrode of an IRF1405 tube T1, the positive electrode of the diode D12, the collector of a PNP triode Q7, the emitter of the NPN triode Q5 and one end of a resistor R19 respectively, the other end of the C11 is connected with one end of a resistor R101 and the cathode of the diode D13 respectively, the other end of the R101 is connected with the positive electrode of the D13, the other end of the B-, the resistor R23 and the drain electrode of T1 respectively, the grid electrode of the T1 is connected with one end of the cathode of the D12 and one end of the resistor R21 respectively, the other end of the emitter of the Q7 and the emitter of the Q9 respectively, the base of the Q9 respectively is connected with the base of the Q9 respectively, the other end of the Q20 and the collector of the Q5 respectively, the base of the Q18 is connected with the other end of the resistor R19 and one end of the Q18 respectively, the Q18 is connected with the other end of the Q8 and the collector of the Q6 and the other end of the Q3 and the collector and Q8; CELL+ is connected with pins 1 and 3 of the MBR2045CT tube D17, and pin 2 of the D17 is connected with pin B+ through a fuse F1;

One end of a resistor R101 is respectively connected with one end of a capacitor C9 and the cathode of a diode D10, the other end of the resistor C9 is respectively connected with one end of a discharging device RZ (RZ can adopt a resistor of 10 ohms and 10W, RZ can discharge floating power for a storage battery, so as to better maintain the storage battery), the anode of a voltage stabilizing tube Z2 and the collector of a PNP triode Q4, the other end of the resistor R101 is respectively connected with the anode of the D10, the drain of a B+ IRF1405 tube T2, the source of the T2 is connected with the other end of the RZ, the grid of the T2 is respectively connected with the anode of the diode D7, the cathode of the Z2 and one end of a resistor R13, the other end of the R13 is respectively connected with the cathode of the D7, the emitter of an NPN triode Q3 and the emitter of the Q4, the base of the Q3 is respectively connected with the base of the Q3, the collector of the NPN triode Q2 and one end of the resistor R12, the other end of the Q12 is connected with VCC, the emitter of the Q2 is grounded, and the base of the Q2 is connected with P2.4 through a resistor R11;

P2.5 connects NPN triode Q1 base through resistance R10, diode D8 in proper order, Q1 emitter links to each other with ground, diode D9 positive pole respectively, D9 negative pole links to each other with Q1's collecting electrode, resistance R9 one end, regulator Z1 negative pole, B90 pipe N1's grid respectively, N1's source links to each other with Z1's positive pole, ground, diode D6's positive pole respectively, and D6's negative pole links to each other with N1's drain electrode, L-respectively.

P2.5 outputs high level, the base electrode of the triode Q1 is given through the resistors R10 and D8, the Q1 is turned on, the collector electrode of the Q1 is conducted to the ground after the Q1 is turned on, the base electrode of the MOS tube is conducted to the ground, the MOS tube is turned off, the L-is disconnected from the system ground, and the whole system has no output. Otherwise, the P2.5 outputs a low level, so that the MOS tube is conducted, and the L-is connected to the system ground, so that the system outputs. Z1 is a 15V voltage stabilizing tube for protecting the MOS tube.

CELL+ is connected with B+ through a high-current diode and a fuse; when P2.0 is high level, Q6 is conducted, Q8 base is pulled down, Q8 is conducted, VCC passes through Q8, diode D11, resistors R18 to Q5 base, then Q5 is conducted, then Q7, Q9 base is pulled down through Q5, then Q7 is conducted, Q9 is closed, then T1 base is pulled down, T1 is cut off, and charging is closed at this time. Otherwise, when P2.0 is low level, T1 is opened, B-and CELL-are conducted, and the system is charged. When P2.4 is high level, Q2 is on, Q3 and Q4 bases are pulled low, at this time Q3 is off, Q4 is on, and T2 is off. Otherwise, when P2.4 is low, T2 is turned on.

The wiring terminal part comprises connectors P1, 1-6 pins of P1 are respectively connected with CELL+, CELL-, B+, B-, L+, L-, and L-, 3 pins of P1 are connected with 1 pin of JP, 3 pins of P1 and 5 pins of P1 are connected with 1 pin of JP, and 6 pins of P1 are connected with 2 pins of JP (JP is the aforementioned JP 1).

The spraying records can be stored in flash inside the U5. The invention is suitable for the preservation of the water painting mountain.

The temperature can be determined first and the amount of spray can be determined based on the temperature value (the process of spraying the preservative can also be reduced in temperature). After 5 minutes, judging whether the humidity is too high or too low according to the humidity amount to control whether the air suction is needed or not, and if the air suction is not needed, continuing spraying. If suction is required, the system adopts suction control. The amount of preservative sprayed per time may be set to not more than 10ml per square meter.

It should be understood that the foregoing detailed description of the present invention is provided for illustration only and is not limited to the technical solutions described in the embodiments of the present invention, and those skilled in the art should understand that the present invention may be modified or substituted for the same technical effects; as long as the use requirement is met, the invention is within the protection scope of the invention.

Claims

1. The solar power supply control circuit comprises a direct current motor control part, a key control part, an LED indication part, a temperature and humidity detection part, a CPU control part and a power supply part, and is characterized in that a control signal input port of the direct current motor control part is connected with a control signal output port of the CPU control part, a control signal output port of the key control part is connected with a control signal input port of the CPU control part, a control signal input port of the LED indication part is connected with a control signal output port of the CPU control part, a detection signal output port of the temperature and humidity detection part is connected with a detection signal input port of the CPU control part, and an electric energy output port of the power supply part is respectively connected with a power supply port of the direct current motor control part, a power supply port of the key control part, a power supply port of the LED indication part, a power supply port of the temperature and humidity detection part and a power supply port of the CPU control part, and an input port of the power supply part is connected with an output port of the solar power supply part;

The direct current motor control part comprises a resistor R21, one end of the resistor R21 is respectively connected with the cathodes of the M1 and the light-emitting diode D10, the other end of the resistor R21 is respectively connected with one ends of the M2 and the resistor R22 through the light-emitting diode D9, and the other end of the resistor R22 is connected with the anode of the D10;

2. The solar power supply control circuit according to claim 1, wherein the key control section comprises resistors R25, R26, R28, R29, wherein one end of R25, one end of R26, one end of R28, one end of R29 are connected to 3.3vdd, the other end of R25 is connected to PA8 through switch SW1, the other end of R26 is connected to PA9 through switch SW2, the other end of R28 is connected to PA10 through switch SW3, and the other end of R29 is connected to PA11 through switch SW 4.

3. The solar power supply control circuit according to claim 1, wherein the LED indication part comprises resistors R32, R33, R35, wherein one end of R32 is connected to the LED1, and the other end of R32 is grounded through the light emitting diode D11; one end of R33 is connected with the LED2, and the other end of R33 is grounded through the light-emitting diode D12; one end of R35 is connected with the LED3, and the other end of R35 is grounded through the light-emitting diode D13.

4. The solar power supply control circuit according to claim 1, wherein the temperature and humidity detection part comprises AHT20 chips A1 and A2, wherein the 2 pin of A1 is respectively connected with one end of a capacitor C6, one end of a resistor R23 and 3.3VDD, the 3 pin of A1 is respectively connected with the other ends of PB6 and R23, the 4 pin of A1 is respectively connected with the other ends of PB7 and resistor R24, the 5 pin of A1 is connected with GND, and the other end of C6 is connected with GND;

5. The solar power supply control circuit according to claim 1, wherein the CPU control part adopts STM32F103C8T6 chip U5, pins 29-32 of U5 are respectively connected with PA 8-PA 11 correspondingly, pin 5 of U5 is respectively connected with one end of resistor R27, one end of crystal oscillator X1 and one end of capacitor C7, the other end of C7 is respectively connected with GND and one end of capacitor C8, and the other end of C8 is respectively connected with the other end of X1, the other end of R27 and pin 6 of U5;

pins 8, 47, 35 and 23 of U5 are connected with GND;

6. The solar power supply control circuit according to claim 1, wherein the power supply part comprises a connector JP1, wherein the pin 2 of JP1 is respectively connected with one end of a capacitor C21, the positive electrode of the capacitor C18 and the pin 1 of an LM2576-5.0 chip U10 through a diode D14, and the pin 1 of JP1 is respectively connected with the other end of the capacitor C21, the negative electrode of the capacitor C18, the pin 3 of the U10, the pin 5 of the U10, the anode of a voltage stabilizing tube DZ1, one end of the capacitor C19, the negative electrode of the capacitor C13, the pin 1 of an AMS1117-3.3 chip U6, one end of the capacitor C20, the negative electrode of the capacitor C12 and the cathode of a diode D15;