CN104902650B - Solar intelligent induction street lamp controller - Google Patents

Abstract

The invention discloses a solar intelligent induction street lamp controller. The solar intelligent induction street lamp controller comprises a microprocessor main control chip arranged on a control circuit board in a sealed housing, a solar cell panel charging module, a constant current source module between the microprocessor main control chip and an LED street lamp, a human body induction module sealed in a plastic housing, an Led state indication module and a wireless remote control transmit-receive circuit. According to the invention, the human body induction module is adopted to realize the condition that the lamp is turned on at full power when someone is around, and the power is reduced or the lamp is turned off after the person left, so that the lamp lightening time is effectively prolonged, and more energy is saved.

Description

A solar intelligent sensor street light controller

technical field

The invention relates to the field of solar street lamp control, in particular to a solar intelligent induction street lamp controller.

Background technique

At present, with the extensive and in-depth application of solar energy, its application in LED street lamps is also increasing. The advantage of LED street lamps is energy saving, and its biggest feature is that it can be dimmed and the power can be adjusted. In order to achieve the purpose of energy saving, the existing solar street light controllers are divided into multi-time and multi-power dimming, that is, different powers are used for different time periods. The existing control method has a certain energy-saving effect, but it does not quite meet people's usage habits. That is, it is impossible to sense people and no one, so as to provide different lighting powers. When no one passes by, a large part of energy is wasted, which is not conducive to environmental protection and energy saving.

In the actual use environment, people urgently hope to have a new control method, which can turn on the lights at full power when there are people, and reduce the power or turn off the lights after people leave. Traditional solar LED street light controllers cannot satisfy.

Contents of the invention

The purpose of the present invention is to solve the problem that traditional LED solar controllers cannot sense whether there are people or no one, and automatically adjust the load power of LEDs, and provide a solar intelligent sensor street lamp controller.

To achieve the above object, the present invention provides the following technical solutions:

A solar intelligent induction street lamp controller, including a microprocessor main control chip arranged on a control circuit board in a sealed casing, a solar panel charging module, a constant current source module between the microprocessor main control chip and the LED street lamp , a human body sensing module sealed in a plastic shell, an LED status indication module and a wireless remote control transceiver circuit communicating with the remote controller, characterized in that: the solar panel charging module, the constant current source module, and the human body sensing module are respectively connected to the The above-mentioned microprocessor main control chip is connected, and the human body sensing module is also respectively connected to the wireless remote control transceiver circuit and the LED status indication module. The load current is adjusted;

The human body sensing module includes a pyroelectric human body infrared sensor PIR and a signal processing chip U1, and pin 1 of the pyroelectric infrared sensor PIR is connected to a 5V power supply through a resistor R7, and 2 pins of the pyroelectric infrared sensor PIR are respectively connected to Capacitor C12, resistor R11, resistor R10 and pin 14 of the signal processing chip U1, pin 3 of the pyroelectric infrared sensor PIR is connected to GND, pin 2 of the signal processing chip U1 is connected to resistor R26, pin 3 of the signal processing chip U1 Connect resistor R4, pin 4 of signal processing chip U1 is connected to capacitor C8, pin 5 of signal processing chip U1 is connected to capacitor C7, pin 6 of signal processing chip U1 is connected to resistor R5, the other end of resistor R4 is connected to capacitor C8, resistor R5 The other end of the capacitor C7 is connected to the capacitor C7, the other end of the capacitor C7 and the capacitor C8 are connected to GND, the 7 pins of the signal processing chip U1 are connected to GND, the 8 pins of the signal processing chip U1 are connected to 5V, and the 9 pins of the signal processing chip U1 Connect the resistor R9, the 10 pins of the signal processing chip U1 are connected to the resistor R8, the other end of the resistor R9 is connected to 5V, the other end of the resistor R8 is connected to GND, the 12 pins of the signal processing chip U1 are respectively connected to the resistors R15, R16 and Capacitor C6, the 13 pins of the signal processing chip U1 are respectively connected to the other end of the resistor R15, the other end of the resistor R16 and the other end of the capacitor C6, the 14 pins of the signal processing chip U1 are connected to the other end of the resistor R10, the signal processing chip U1 The 15 pins of the signal processing chip U1 are respectively connected to the resistor R1, the capacitor C3 and the resistor R3, and the 16 pins of the signal processing chip U1 are respectively connected to the other end of the resistor R1 and the other end of the capacitor C3;

The wireless remote control transceiver circuit includes a receiver U7, a transmitter IR and a triode Q21. Pin 1 of the receiver U7 is connected to the IR-IN of the microprocessor main control chip, pin 2 of the receiver U7 is connected to GND, and pin 1 of the receiver U7 is connected to GND. Pin 3 of U7 is connected to 5V voltage through resistor R44, pin 1 of transmitter IR is connected to the other end of resistor R44, pin 2 of transmitter IR is connected to the collector of transistor Q21, emitter of transistor Q21 is connected to resistor R52, and base of transistor Q21 The poles are respectively connected to the resistor R49, the resistor R46, the anode of the diode D15 and the collector of the transistor Q22, the other end of the resistor R52 and the other end of the resistor R49 are respectively connected to GND, and the other end of the resistor R46 is connected to the collector of the transistor Q20 , the emitter of the triode Q20 is connected to a voltage of 5V, the base of the triode Q20 is respectively connected to a resistor R45 and a resistor R43, the other end of R43 is connected to the emitter of the triode Q20, and the other end of R45 is connected to the data sending end IR-OUT, the The emitter of the transistor Q22 is connected to GND, the collector of the transistor Q22 is connected to the anode of the diode D15, and the base of the transistor Q22 is connected to the modulation signal IR_carrier through the resistor R50.

As a preferred solution of the present invention: the modulation signal IR_carrier is produced by the microprocessor main control chip, and the IR-OUT is connected to the serial port sending end of the microprocessor main control chip, and is sent from the transmitting head IR after being modulated by the carrier signal. The receiving head U7 adopts an integrated receiving head, and the received signal is sent to the microprocessor main control chip through the IR-IN pin.

As a preferred solution of the present invention: the solar battery panel charging module includes the connection between the anode of the solar battery panel and the anode of the battery, and a control switch tube arranged on the connection line between the cathode of the solar battery panel and the cathode of the battery, so The above-mentioned control switch tube is controlled on and off by the PWM signal generated by the main control chip of the microprocessor, and the solar battery panel charging module also includes a battery voltage acquisition circuit.

As a preferred solution of the present invention: the solar LED intelligent induction street lamp controller also includes a solar battery voltage sampling circuit and a temperature sampling circuit, and the outputs of the solar battery voltage sampling circuit and the temperature sampling circuit are connected to a microprocessor main control chip.

Compared with the prior art, the beneficial effect of the present invention is: the present invention adopts the human body induction module, which can realize the full-power lighting when there are people, and reduce the power or turn off the lights after the people leave, which can effectively prolong the lighting time, and more energy saving.

Description of drawings

Fig. 1 is a functional block diagram of the solar intelligent sensor street light controller of the present invention.

Fig. 2 is a circuit diagram of the human body sensing module of the present invention.

Fig. 3 is a circuit diagram of the solar panel charging module of the present invention.

Fig. 4 is a circuit diagram of the wireless remote control transceiver of the present invention.

Fig. 5 is the solar panel voltage acquisition circuit of the present invention.

Fig. 6 is the storage battery voltage acquisition circuit of the present invention.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to Figure 1-6, a solar intelligent sensor street light controller, including a microprocessor main control chip, a solar panel charging module, a microprocessor main control chip and an LED street light arranged on a control circuit board in a sealed casing The constant current source module between them, the human body induction module sealed in the plastic shell, the LED status indication module and the wireless remote control transceiver circuit communicating with the remote control, are characterized in that: the solar panel charging module, the constant current source module 1. The human body sensing module is connected to the main control chip of the microprocessor respectively, and the human body sensing module is also connected to the wireless remote control transceiver circuit and the LED status indication module respectively, and the human body sensing module sends feedback signals to the main control chip of the microprocessor. The load current of the constant current source module is adjusted.

The human body sensing module includes a pyroelectric human body infrared sensor PIR and a signal processing chip U1, and pin 1 of the pyroelectric infrared sensor PIR is connected to a 5V power supply through a resistor R7, and 2 pins of the pyroelectric infrared sensor PIR are respectively connected to Capacitor C12, resistor R11, resistor R10 and pin 14 of the signal processing chip U1, pin 3 of the pyroelectric infrared sensor PIR is connected to GND, pin 2 of the signal processing chip U1 is connected to resistor R26, pin 3 of the signal processing chip U1 Connect resistor R4, pin 4 of signal processing chip U1 is connected to capacitor C8, pin 5 of signal processing chip U1 is connected to capacitor C7, pin 6 of signal processing chip U1 is connected to resistor R5, the other end of resistor R4 is connected to capacitor C8, resistor R5 The other end of the capacitor C7 is connected to the capacitor C7, the other end of the capacitor C7 and the capacitor C8 are connected to GND, the 7 pins of the signal processing chip U1 are connected to GND, the 8 pins of the signal processing chip U1 are connected to 5V, and the 9 pins of the signal processing chip U1 Connect the resistor R9, the 10 pins of the signal processing chip U1 are connected to the resistor R8, the other end of the resistor R9 is connected to 5V, the other end of the resistor R8 is connected to GND, the 12 pins of the signal processing chip U1 are respectively connected to the resistors R15, R16 and Capacitor C6, the 13 pins of the signal processing chip U1 are respectively connected to the other end of the resistor R15, the other end of the resistor R16 and the other end of the capacitor C6, the 14 pins of the signal processing chip U1 are connected to the other end of the resistor R10, the signal processing chip U1 The pin 15 of the signal processing chip U1 is respectively connected to the resistor R1, the capacitor C3 and the resistor R3, and the pin 16 of the signal processing chip U1 is respectively connected to the other end of the resistor R1 and the other end of the capacitor C3.

The wireless remote control transceiver circuit includes a receiving head U7, a transmitting head IR and a triode Q21. Pin 1 of the receiving head U7 is connected to the IR-IN of the microprocessor main control chip, and pin 2 of the receiving head U7 is connected to GND. Pin 3 of U7 is connected to 5V voltage through resistor R44, pin 1 of transmitter IR is connected to the other end of resistor R44, pin 2 of transmitter IR is connected to the collector of transistor Q21, emitter of transistor Q21 is connected to resistor R52, and base of transistor Q21 The poles are respectively connected to the resistor R49, the resistor R46, the anode of the diode D15 and the collector of the transistor Q22, the other end of the resistor R52 and the other end of the resistor R49 are respectively connected to GND, and the other end of the resistor R46 is connected to the collector of the transistor Q20 , the emitter of the triode Q20 is connected to a voltage of 5V, the base of the triode Q20 is respectively connected to a resistor R45 and a resistor R43, the other end of R43 is connected to the emitter of the triode Q20, and the other end of R45 is connected to the data sending end IR-OUT, the The emitter of the transistor Q22 is connected to GND, the collector of the transistor Q22 is connected to the anode of the diode D15, and the base of the transistor Q22 is connected to the modulation signal IR_carrier through the resistor R50.

The modulation signal IR_carrier is generated by the main control chip of the microprocessor, and IR-OUT is connected to the serial port sending end of the main control chip of the microprocessor. The receiving head sends the received signal to the microprocessor main control chip through the IR-IN pin.

The solar panel charging module includes a control switch tube that connects the connection line between the anode of the solar panel and the anode of the storage battery on the connection line between the cathode of the solar panel and the cathode of the storage battery, and the control switch tube is controlled by a micro The PWM signal generated by the processor main control chip is controlled to turn on and off, and the solar panel charging module also includes a battery voltage acquisition circuit.

The solar LED intelligent induction street lamp controller also includes a solar battery voltage sampling circuit and a temperature sampling circuit, and the outputs of the solar battery voltage sampling circuit and the temperature sampling circuit are both connected to a microprocessor main control chip.

The working principle of the present invention is: as shown in Figure 2, it is the realization circuit of the human body induction module, after the pyroelectric human body infrared sensor PIR detects that someone passes by, an analog signal will be output at pin 2, through the capacitor C12, the resistor R11, the resistor After filtering and conditioning by R10 and capacitor C11, the signal is sent to the 14th pin 1IN+ of U1. U1 processes the input signal and outputs the level to the I/O port of the main controller. When someone passes by, U1 outputs a high level. Output low level when no one passes by. U1 has two built-in operational amplifiers OP1 and OP2, and two comparators COP1 and COP2. The operational amplifier OP1 preprocesses the input signal, amplifies the signal, and then couples it to the operational amplifier OP2, and then performs the second stage of amplification. The output signal is sent to the two-way frequency discriminator composed of comparators COP1 and COP2, and the valid signal is sent to the main control chip by pin 2 VO of U1. The main control chip judges whether there is someone passing by according to the input signal, and outputs different currents through the controller constant current source module, thereby adjusting the brightness of the load, so as to realize power adjustment when there are people and no one.

In the solar panel charging module shown in Figure 3, the cathode and anode terminals of the solar panel are connected to a detonator TVS1 in parallel, and the solar panel is generally installed on the top of the light pole. A detonator TVS1 is added between the cathode and anode of the battery board. The charging module includes a connection line between the anode of the solar panel and the anode of the battery, and a control switch tube arranged on the connection line between the cathode of the solar panel and the cathode of the battery, and the control switch tube is controlled by a microprocessor. The PWM signals PWM_PV and PWM_BAT generated by the control chip are controlled separately. The PWM_PV controls the switching tube Q3 on one side of the solar panel, and the PWM_BAT controls the switching tube Q6 of the storage battery, so as to realize the charging of the storage battery by the solar panel.

As shown in Figure 4, it is a wireless remote control transceiver circuit. The wireless transmitting circuit is composed of transmitting head IR1, modulation signal IR_carrier, data transmission terminal IR-OUT and peripheral circuits. The modulation signal IR_carrier is generated by the main control chip at 38KHz The carrier signal, IR-OUT is connected to the serial port sending end of the main control chip, and is sent out from the transmitting head IR1 after being modulated by the carrier signal. The wireless receiving circuit adopts an integrated receiving head U7, which integrates a signal demodulation circuit inside, and sends the received signal to the main controller through the IR-IN pin to complete the signal receiving.

As shown in Figure 5, it is a solar panel voltage sampling circuit. Resistors R1, R4, and R6 in the circuit are illuminance acquisition circuits. By detecting the voltage at both ends of the photocell, the intensity of illumination is judged. The MCU collects the intensity of illumination to identify daytime and At night, combined with the mode set by the user to determine the working status of the load. The output of D1 is connected to the negative pole of the solar panel. When the solar panel has voltage, D1 is turned on, and the voltage from the upper end of R4 resistor to the ground is 0.5~0.7V; when there is no voltage on the solar panel, D1 is cut off, and the voltage on R4 It is the voltage division of the battery on R4, and the MCU judges day and night by collecting the voltage division values on R4 and R6. C1 is the filter capacitor of the AD sampling port of the MCU.

As shown in Figure 6 is the battery voltage acquisition circuit. Resistor R18 and resistor R21 are voltage divider resistors in the battery voltage acquisition circuit. Through the voltage divider of R21, combined with the voltage of the AD converter that comes with the MCU, the actual battery voltage can be obtained through a certain algorithm.

The user can set the relevant parameters with a dedicated remote control, and then send them to the product of the present invention through wireless infrared signals. The MCU of the product will change the corresponding parameters according to the communication protocol set by the software and control the operation of the entire system according to these parameters. .

Embodiments of the present invention have the following advantages:

1. Intelligent sensing, when people and no one pass by, different load powers are enabled, which is more conducive to prolonging the lighting time and saving energy.

2. The sensor probe is integrated with a wireless infrared transceiver module, and the parameter information is sent through a dedicated handheld remote control to change the working mode of the controller, which solves the problem that the traditional controller cannot be directly operated under the street lamp.

3. The LED status indication module integrated on the induction probe can intuitively and conveniently understand the working status of the controller.

Claims (3)

1. A solar energy intelligent induction street lamp controller, comprising a microprocessor main control chip, a solar panel charging module, a constant current source module, a human body induction module, an LED status indication module and The wireless remote control transceiver circuit is characterized in that the solar panel charging module, the constant current source module and the human body induction module are connected to the main control chip of the microprocessor respectively, and the human body induction module is also connected to the wireless remote control transceiver circuit and the human body induction module respectively. LED status indication module; the human body sensing module includes a pyroelectric human body infrared sensor PIR and a signal processing chip U1; The 1 pin of the pyroelectric infrared sensor PIR is connected to the 5V power supply through the resistor R7, and the 2 pins of the pyroelectric infrared sensor PIR are respectively connected to the 14 pins of the capacitor C12, the resistor R11, the resistor R10 and the signal processing chip U1. Pin 3 of the infrared sensor PIR is connected to GND, pin 2 of the signal processing chip U1 is connected to resistor R26, pin 3 of the signal processing chip U1 is connected to resistor R4, pin 4 of the signal processing chip U1 is connected to capacitor C8, and pin 4 of the signal processing chip U1 is connected to capacitor C8. Pin 5 is connected to capacitor C7, pin 6 of signal processing chip U1 is connected to resistor R5, the other end of resistor R4 is connected to capacitor C8, the other end of resistor R5 is connected to capacitor C7, the other end of capacitor C7 and capacitor C8 are connected to GND , pin 7 of the signal processing chip U1 is connected to GND, pin 8 of the signal processing chip U1 is connected to 5V, pin 9 of the signal processing chip U1 is connected to resistor R9, pin 10 of the signal processing chip U1 is connected to resistor R8, and pin 9 of the signal processing chip U1 is connected to resistor R8. The other end is connected to 5V, the other end of the resistor R8 is connected to GND, the 12 pins of the signal processing chip U1 are respectively connected to the resistor R15, the resistor R16 and the capacitor C6, and the 13 pins of the signal processing chip U1 are respectively connected to the other end of the resistor R15, the resistor R16 The other end of the other end and the other end of the capacitor C6, the 14 pins of the signal processing chip U1 are connected to the other end of the resistor R10, the 15 pins of the signal processing chip U1 are respectively connected to the resistor R1, the capacitor C3 and the resistor R3, the signal processing chip U1 16 are respectively connected to the other end of the resistor R1 and the other end of the capacitor C3; The wireless remote control transceiver circuit includes a receiver U7, a transmitter IR and a triode Q21. Pin 1 of the receiver U7 is connected to the microprocessor main control chip, pin 2 of the receiver U7 is connected to GND, and pin 3 of the receiver U7 is connected to GND. Connect the 5V voltage through the resistor R44, the first pin of the transmitter IR is connected to the other end of the resistor R44, the second pin of the transmitter IR is connected to the collector of the transistor Q21, the emitter of the transistor Q21 is connected to the resistor R52, and the base of the transistor Q21 is respectively connected to the resistor R49, resistor R46, the anode of the diode D15 and the collector of the triode Q22, the other end of the resistor R52 and the other end of the resistor R49 are respectively connected to GND, the other end of the resistor R46 is connected to the collector of the triode Q20, and the other end of the transistor Q20 The emitter is connected to a voltage of 5V, the base of the triode Q20 is respectively connected to a resistor R45 and a resistor R43, the other end of the R43 is connected to the emitter of the triode Q20, the other end of R45 is connected to the data sending terminal IR-OUT, and the emitter of the triode Q22 The pole is connected to GND, the collector of the transistor Q22 is connected to the anode of the diode D15, and the base of the transistor Q22 is connected to the modulation signal IR_carrier through the resistor R50. 2. The solar intelligent induction street lamp controller according to claim 1, wherein the modulation signal IR_carrier is generated by the microprocessor main control chip, and IR-OUT is connected to the serial port sending end of the microprocessor main control chip, After being modulated by the carrier signal, it is sent from the transmitting head IR. The receiving head U7 adopts an integrated receiving head, and the received signal is sent to the microprocessor main control chip through the IR-IN pin. 3. The solar energy intelligent induction street lamp controller according to claim 1, characterized in that, the solar LED intelligent induction street lamp controller also includes a solar cell voltage sampling circuit and a temperature sampling circuit, and the solar cell voltage sampling circuit and temperature The output of the sampling circuit is connected to the main control chip of the microprocessor.