CN212851118U - Solar LED lamp constant current control system based on Internet of things module - Google Patents
Solar LED lamp constant current control system based on Internet of things module Download PDFInfo
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- CN212851118U CN212851118U CN202021605231.2U CN202021605231U CN212851118U CN 212851118 U CN212851118 U CN 212851118U CN 202021605231 U CN202021605231 U CN 202021605231U CN 212851118 U CN212851118 U CN 212851118U
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Abstract
The utility model provides a solar LED lamp constant current control system based on internet of things module, including PWM charging module, power management module, step up constant current module, GPRS wireless communication module, charging connection end, battery connection end, load connection end, solar panel photocell, battery, load lamp plate, solar street lamp control module; the solar street lamp comprises a PWM charging module, a power management module, a storage battery, a boosting constant-current module, a load lamp panel and a solar street lamp control module, wherein the PWM charging module controls a solar panel photocell to supply power through a charging connecting end, the power management module controls electric energy provided by the PWM charging module to discharge and charge, the storage battery charges and discharges through a battery connecting end, the boosting constant-current module discharges to the load lamp panel through a load connecting end, and the solar street lamp control module is used for sending. The system adopts GPRS wireless communication and is provided with the lamp constant current controller, so that the remote control of a PC can be realized, and the stable communication and high reliability of the whole system are ensured.
Description
Technical Field
The utility model belongs to the field of lighting, especially, relate to a solar energy LED lamp constant current control system based on thing networking module.
Background
In recent years, with the gradual enhancement and the gradual change of Chinese national force, solar intelligent street lamp controllers are widely known, and are mainly used for solar power supply systems of families, business areas, factories, traffic, pasture areas, communication and the like. Most of traditional solar street lamp controllers still stay in control modes such as manual control, light control and clock control, the control and management mode cannot meet the requirements of urban street lamp development and management, a 'lamp training' system is required to be adopted for street lamp management, the efficiency is low, and the maintenance cost is high.
The traditional off-grid solar street lamp controller cannot adjust the lamp switching time as required in time and cannot reflect the operation condition of lighting facilities in time, and the fault rate is high and the maintenance is difficult. However, with the continuous development of science and technology, the demand of interconnection of everything is more and more, the networking demand of off-network solar street lamp controllers is more and more urgent, and the demand of solar street lamp controller products integrating internet of things modules is very strong.
SUMMERY OF THE UTILITY MODEL
In order to solve the shortcomings of the prior art, the utility model aims to provide a solar LED lamp constant current control system based on thing networking module to solve the problem that the traditional solar street lamp based on thing networking communicates harmfully easily and the reliability is low.
In order to realize the purpose of the utility model and solve the technical problem of the utility model, the utility model provides a solar LED lamp constant current control system based on an internet of things module, which comprises a PWM charging module, a power management module, a boosting constant current module, a GPRS wireless communication module, a charging connecting end, a battery connecting end, a load connecting end, a solar panel photocell, a storage battery, a load lamp plate and a solar street lamp control module; the solar street lamp comprises a solar panel photocell, a charging connection end, a PWM charging module, a power management module, a storage battery, a boosting constant-current module and a power management module, wherein the solar panel photocell is controlled by the PWM charging module to supply power through the charging connection end, the power management module controls electric energy provided by the PWM charging module to discharge and charge, the storage battery charges and discharges through the battery connection end, the boosting constant-current module discharges to a load lamp panel through the load connection end, and the solar street lamp control module is used for sending control commands to the power management.
Preferably, the PWM charging module adopts 2 MOS transistors and 1 single chip microcomputer for command control, the 2 MOS transistors are Q1 and Q2, pins of the single chip microcomputer drive the on-off timing sequences of the MOS transistors Q1 and Q2 through a driving circuit, and the PWM charging module controls the on-off timing sequence of the charging process by PWM pulse width modulation.
Preferably, the power management module includes acquisition circuit and central processing unit, the sampling circuit divide into voltage acquisition circuit and current acquisition circuit, current acquisition circuit gathers the electric current that charges, discharges, voltage acquisition circuit gathers respectively the solar panel photocell the battery with the voltage of load lamp plate.
Preferably, the output voltage of the boosting constant-current module is equal to the input voltage of the load lamp panel; the input voltage of the battery connecting end is 12V or 24V; when the input voltage of the battery connecting end is 12V, the output power of the boosting constant-current module is 40W; when the input voltage of the battery connecting end is 24V, the output power of the boosting constant-current module is 60W.
Preferably, the GPRS wireless communication module comprises an ESIM chip, a GSM/GPRS communication module, an antenna and an indicator light; the ESIM chip is installed and is carried out the construction of network in the GSM/GPRS communication module, the antenna is used for wireless signal to outwards send, the pilot lamp is used for showing the running state of GPRS wireless communication module.
Preferably, the boost constant-current module outputs constant voltage and constant current to a load, the number of strings of the lamp panel of the load ranges from 5 to 18, the output voltage range of the boost constant-current module ranges from 15V to 54V, and the output current range ranges from 0 to 2A.
Preferably, the positive electrode of the storage battery is connected with the positive electrode of the load lamp panel through a Boost circuit, and the Boost circuit comprises a winding inductor L3, a Boost MOS transistor Q3, a schottky diode D4 and an output voltage-stabilizing capacitor C2; the Boost circuit boosts the output voltage of the storage battery to the input voltage of the load lamp panel.
Preferably, the power management module identifies the number of strings of the load lamp panel by using the voltage acquisition circuit and the current acquisition circuit, and the power management module sends a driving signal to the Boost MOS transistor Q3 to control the Boost proportion of the Boost circuit. Compared with the prior art, the beneficial effects of the utility model are embodied in:
(1) the utility model adopts ESIM chip and GPRS wireless communication to carry out charging and discharging control based on the Internet of things, and can realize the remote control of PC;
(2) the utility model discloses with output voltage and electric current steady for a fixed value, guaranteed the reliable and stable operation of whole system.
Drawings
Fig. 1 is a structural diagram of a solar LED lamp constant current control system based on an internet of things module provided in the present invention;
fig. 2 is a circuit diagram of a solar street lamp control module of a solar LED lamp constant current control system based on an internet of things module provided in the present invention;
fig. 3 is a driving circuit diagram of the PWM charging module in the solar LED lamp constant current control system based on the module of the internet of things;
fig. 4 is a connection circuit diagram of the PWM charging module, the power management module, the boosting constant current module, the charging connection end, the battery connection end, and the load connection end in the solar LED lamp constant current control system based on the module of internet of things;
fig. 5 is a circuit diagram of a GPRS wireless communication module in a solar LED lamp constant current control system based on an internet of things module according to the present invention;
fig. 6 is a circuit diagram of a load voltage acquisition circuit of the battery management module in the solar LED lamp constant current control system based on the module of the internet of things;
fig. 7 is a circuit diagram of a storage battery and a photocell acquisition circuit of the battery management module in the solar LED lamp constant current control system based on the module of the internet of things;
fig. 8 is a driving circuit diagram of a boost MOS transistor in a boost constant current module in a solar LED lamp constant current control system based on an internet of things module.
Detailed Description
In order to further understand the structure, characteristics and other objects of the present invention, the following detailed description is given with reference to the accompanying preferred embodiments, which are only used to illustrate the technical solution of the present invention and are not intended to limit the present invention.
As shown in fig. 1, for the utility model provides a solar energy LED lamp constant current control system structure picture based on thing networking module. The solar LED lamp constant-current control system based on the Internet of things module comprises a PWM charging module, a power management module, a boosting constant-current module, a GPRS wireless communication module, a charging connecting end, a battery connecting end, a load connecting end, a solar panel photocell, a storage battery, a load lamp panel and a solar street lamp control module; the solar street lamp comprises a solar panel photocell, a charging connection end, a PWM charging module, a power management module, a storage battery, a boosting constant-current module and a power management module, wherein the solar panel photocell is controlled by the PWM charging module to supply power through the charging connection end, the power management module controls electric energy provided by the PWM charging module to discharge and charge, the storage battery charges and discharges through the battery connection end, the boosting constant-current module discharges to a load lamp panel through the load connection end, and the solar street lamp control module is used for sending control commands to the power management.
The power management module adopts an MCU control circuit and takes an STM32 chip as a main chip, a 12-bit AD channel is provided, the power management module collects voltage and guides the voltage into a control algorithm for calculation, and the output of the power management module is a control signal.
The PWM charging module is controlled by a drive circuit of an MOS tube and a single chip microcomputer instruction, and the PWM charging module controls the over-discharge, over-charge and over-voltage protection of the storage battery. The battery management module identifies the voltage of the storage battery, the voltage of the solar panel photocell and the voltage of the load lamp panel through a resistor, and monitors and protects the running state.
As shown in fig. 2, for the utility model provides an among solar energy LED lamp constant current control system based on thing networking module solar street lamp control module circuit diagram. The solar street lamp control module takes a single chip microcomputer as a core, a peripheral circuit mainly comprises an auxiliary source power supply circuit, a BOOST boosting output circuit, a discharging control circuit, a charging control circuit, a voltage sampling circuit, a current sampling circuit and an indicator lamp display circuit, photovoltaic charging of a storage battery, boosting constant current output of the storage battery, regular display of load lamp beads at different periods and effective protection of overcharge and overdischarge of the storage battery, overvoltage, overload, open circuit and the like are realized through a series of hardware circuits and single chip microcomputer logic.
As shown in fig. 3, for the utility model provides a solar energy LED lamp constant current control system based on thing networking module among the drive circuit diagram of PWM module of charging. And controlling the solar panel to charge the storage battery according to the set charging curve. The damage of the storage battery caused by over-discharge, over-charge and over-voltage is avoided. The working principle is that the driving circuit of the MOS tube and the single chip microcomputer command control the Q1 and Q2 MOS to carry out PWM charging, and the sampling circuit carries out over-discharge, over-charge and over-voltage protection on the storage battery.
As shown in fig. 4, for the utility model provides an among solar energy LED lamp constant current control system based on thing networking module PWM charge the module power management module step up constant current module with charge the link the battery link the connecting circuit diagram of load link.
X1 and X2 in the connecting circuit are the positive and negative poles of photocell respectively, X3 connects the battery positive pole, X4 connects the battery negative pole, X5 connects the load lamp plate positive pole, X6 connects the load lamp plate negative pole. The storage battery positive pole and the load lamp plate positive pole are connected through a Boost circuit, the Boost circuit mainly comprises a winding inductor L3, a boosting MOS tube Q3, a Schottky diode D4 and an output voltage stabilizing capacitor C2, the output voltage can be higher than the input voltage through the Boost circuit, and therefore the boosting purpose is achieved, a single chip microcomputer can automatically adjust the driving signal of the boosting MOS tube Q3 by recognizing the load lamp string number, the Q3 driving signal is obtained by a single chip microcomputer control driving chip, the output voltage is stable, and therefore the load lamp cannot flicker.
The current acquisition circuit comprises a charging current acquisition circuit and a discharging current acquisition circuit. The charging current acquisition circuit of the battery management module adopts a resistance voltage division mode to measure, R13 is a current detection resistor of a charging loop, a current detection signal I _ PV is amplified according to a set proportion through an operational amplifier, an amplification signal I _ PV1 is transmitted to a single chip microcomputer, and the solar street lamp control module reads the size of the charging current through detecting the signal. The discharging current collecting circuit of the battery management module obtains a voltage value through resistance collection, R18 is a discharging loop current detection resistance, and a current detection signal Iload_csAmplifying the signal I according to a set proportion by an operational amplifierLOADThe signal is transmitted to the singlechip, and the solar street lamp control module reads the magnitude of the discharge current by detecting the signal.
As shown in fig. 5, for the utility model provides a GPRS wireless communication module circuit diagram among solar energy LED lamp constant current control system based on thing networking module. GPRS wireless communication includes, in part, an ESIM chip, an M6315 module, an antenna, and an indicator light. And uploading the data to the PC end and the mobile phone end through the serial port, and simultaneously issuing control parameters to the controller through the PC end and the mobile phone end.
The solar LED constant-current control system based on the Internet of things module is used for controlling the charging and discharging processes of the solar panel, the storage battery and the load lamp panel. The working time intervals of the solar LED constant-current control system based on the Internet of things module are divided into day and night, when the solar panel is under voltage in the daytime, the storage battery is charged in a three-section type electric mode, and the load lamp panel is closed; when the solar panel is at night, the solar panel has no voltage, the load lamp panel is opened, the voltage on the storage battery is transmitted to the load lamp panel through the boosting constant-current module, and the boosting constant-current module can perform current-limiting output on output electric energy. The solar street lamp control module adopts time-interval control, and can receive various time-interval operation requirements transmitted by a user through GPRS.
As shown in fig. 6, for the utility model provides an among solar energy LED lamp constant current control system based on thing networking module the load voltage acquisition circuit diagram of battery management module. The load voltage acquisition circuit of the battery management module comprises two resistors R21 and R22, wherein the voltage across the resistor R22 is the acquired load voltage.
As shown in fig. 7, for the utility model provides an among solar energy LED lamp constant current control system based on thing networking module battery management module's battery and photocell acquisition circuit diagram. The storage battery and the photocell acquisition circuit diagram of the battery management module are measured in a resistance voltage division mode, and the measured resistances are voltage values at two ends of a resistor R26 and a resistor R27 respectively.
The module model of GPRS wireless communication module is M6315, model M6315 provides the GPRS data transmission on the GSM network, GPRS wireless communication module adopts the low-power consumption technique, and the electric current that the electric current consumption consumed when sleep mode is 1.45 mA. The GPRS wireless communication module transmits data through a serial port, reads and writes parameters in the solar street lamp control module through a computer platform and a mobile phone, and can modify the parameters of the solar street lamp control module.
As shown in fig. 8, for the utility model provides an among the solar energy LED lamp constant current control system based on thing networking module the MOS pipe drive circuit diagram that steps up in the constant current module that steps up. The boosting constant-current module outputs the battery voltage (12V) to a load through a boosting circuit and a constant-current control circuit in a constant-voltage and constant-current mode (the number of strings of a load lamp panel ranges from 5 to 8 and ranges from 18 to 3, the output voltage range is about 15 to 54V), the output current range is 0 to 2A, and the power cannot exceed 60W. The negative electrode of the storage battery is connected with the negative electrode of the load lamp panel through a discharging MOS (metal oxide semiconductor) tube Q5, and a Q5 driving signal is obtained by controlling a driving chip through a single chip microcomputer.
R18 in a discharging current collecting circuit of the battery management module is a current detection resistor of a discharging loop, a current detection signal I is amplified according to a set proportion through an operational amplifier, the amplified signal is transmitted to the single chip microcomputer, and the solar street lamp control module changes the signal through detecting the signal, so that the duty ratio of PWM waves is changed to limit output current, and the purpose of outputting constant current is achieved.
The solar LED street lamp has the advantages that the solar LED street lamp can be realized in the above mode, wireless communication is configured in the constant current controller, the remote control of a PC can be realized, and the stable and reliable operation of the whole solar LED street lamp is guaranteed.
It should be noted that the above mentioned embodiments and embodiments are intended to demonstrate the practical application of the technical solution provided by the present invention, and should not be interpreted as limiting the scope of the present invention. Various modifications, equivalent substitutions and improvements will occur to those skilled in the art and are intended to be within the spirit and scope of the present invention. The protection scope of the present invention is subject to the appended claims.
Claims (8)
1. A solar LED lamp constant-current control system based on an Internet of things module is characterized by comprising a PWM charging module, a power management module, a boosting constant-current module, a GPRS wireless communication module, a charging connecting end, a battery connecting end, a load connecting end, a solar panel photocell, a storage battery, a load lamp panel and a solar street lamp control module; the solar street lamp comprises a solar panel photocell, a charging connection end, a PWM charging module, a power management module, a storage battery, a boosting constant-current module and a power management module, wherein the solar panel photocell is controlled by the PWM charging module to supply power through the charging connection end, the power management module controls electric energy provided by the PWM charging module to discharge and charge, the storage battery charges and discharges through the battery connection end, the boosting constant-current module discharges to a load lamp panel through the load connection end, and the solar street lamp control module is used for sending control commands to the power management.
2. The solar LED lamp constant-current control system based on the Internet of things module as claimed in claim 1, wherein the PWM charging module is controlled by instructions through 2 MOS tubes and 1 single chip microcomputer, the 2 MOS tubes are respectively Q1 and Q2, pins of the single chip microcomputer drive the on-off time sequences of the MOS tubes Q1 and Q2 through a driving circuit, and the PWM charging module controls the on-off time sequences of the charging process through PWM pulse width modulation.
3. The solar LED lamp constant-current control system based on the Internet of things module as claimed in claim 1, wherein the power management module comprises a sampling circuit and a central processing unit, the sampling circuit is divided into a voltage acquisition circuit and a current acquisition circuit, the current acquisition circuit acquires charging and discharging currents, and the voltage acquisition circuit respectively acquires voltages of the solar panel photocell, the storage battery and the load lamp panel.
4. The solar LED lamp constant-current control system based on the Internet of things module according to claim 1, wherein the output voltage of the boosting constant-current module is equal to the input voltage of the load lamp panel, and the input voltage of the battery connection end is 12V or 24V; when the input voltage of the battery connecting end is 12V, the output power of the boosting constant-current module is 40W; when the input voltage of the battery connecting end is 24V, the output power of the boosting constant-current module is 60W.
5. The solar LED lamp constant-current control system based on the Internet of things module as claimed in claim 1, wherein the GPRS wireless communication module comprises an ESIM chip, a GSM/GPRS communication module, an antenna and an indicator lamp; the ESIM chip is installed and is carried out the construction of network in the GSM/GPRS communication module, the antenna is used for wireless signal to outwards send, the pilot lamp is used for showing the running state of GPRS wireless communication module.
6. The solar LED lamp constant-current control system based on the Internet of things module as claimed in claim 1, wherein the boost constant-current module performs constant-voltage and constant-current output to a load, the number of strings of the lamp panel of the load ranges from 5 to 18, the output voltage of the boost constant-current module ranges from 15V to 54V, and the output current ranges from 0 to 2A.
7. The solar LED lamp constant-current control system based on the Internet of things module as claimed in claim 3, wherein the anode of the storage battery is connected with the anode of the load lamp panel through a Boost circuit, and the Boost circuit comprises a winding inductor L3, a Boost MOS tube Q3, a Schottky diode D4 and an output voltage-stabilizing capacitor C2; the Boost circuit boosts the output voltage of the storage battery to the input voltage of the load lamp panel.
8. The solar LED lamp constant-current control system based on the Internet of things module as claimed in claim 7, wherein the power management module identifies the number of strings of the load lamp panel by using the voltage acquisition circuit and the current acquisition circuit, and sends a driving signal to the Boost MOS transistor Q3 to control the Boost proportion of the Boost circuit.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113365394A (en) * | 2021-08-11 | 2021-09-07 | 北京金晟达生物电子科技有限公司 | LED module detection device, control terminal and signal interaction system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113365394A (en) * | 2021-08-11 | 2021-09-07 | 北京金晟达生物电子科技有限公司 | LED module detection device, control terminal and signal interaction system |
| CN113365394B (en) * | 2021-08-11 | 2021-12-21 | 北京金晟达生物电子科技有限公司 | LED module detection device, control terminal and signal interaction system |
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