Intelligent photoelectric street lamp based on illumination induction and wireless communication

Abstract

An intelligent photoelectric street lamp based on illumination induction and wireless communication relates to a photoelectric street lamp and comprises an STM32F407 chip core board, a power supply module, an illumination sensor, a temperature and humidity sensor, a Bluetooth module, a Wi-Fi module, a relay module and an LED light module which are mounted on a lamp post. And the chip core board adopts an STM32F407 or similar high-performance microcontroller and is responsible for collecting, processing and controlling overall data. An STM32F407 chip core board is adopted as a control unit, an illumination and temperature and humidity sensor, a Bluetooth module and a Wi-Fi module are integrated, stable power supply is provided for an LED light module through a BUCK and LDO voltage stabilizing circuit, remote monitoring and management are achieved through an MQTT protocol, and therefore the brightness is automatically adjusted according to the real-time environment without manual intervention, and the brightness of the LED light module can be automatically adjusted. Energy is effectively saved, the urban lighting management efficiency is improved, and the system is suitable for various scenes such as urban streets, parks and expressways.

Description

Technical Field

[0001] The invention relates to a photoelectric circuit light, in particular to an intelligent photoelectric circuit light based on light induction and wireless communication. Background Art

[0002] Traditional street lamps and intelligent lighting systems generally use fixed time or simple light-sensing triggering methods, which have the following shortcomings: High energy consumption: Traditional systems cannot dynamically adjust according to real-time ambient light, resulting in waste of electricity.

[0003] Lack of remote monitoring: Remote status monitoring and fault warning cannot be achieved, and the maintenance cost is high.

[0004] Poor environmental adaptability: When the weather, temperature, humidity and other environmental factors change greatly, the lighting status cannot be adjusted in time, affecting the lighting effect.

[0005] In recent years, with the continuous development of the Internet of Things, wireless communication and intelligent control technology, intelligent optical circuit lights based on real-time data acquisition and remote data interaction by sensors have become an important development direction of future lighting systems. In view of the above problems, the present invention provides an intelligent optical circuit light system integrating light sensing, environmental monitoring and wireless communication, which not only realizes automatic dimming, but also meets the needs of remote monitoring and dynamic management. Summary of the invention

[0006] The purpose of the present invention is to provide an intelligent optical circuit lamp based on light sensing and wireless communication, which adopts STM32F407 or similar high-performance microcontrollers to be responsible for overall data collection, processing and control. The STM32F407 chip core board is used as a control unit, integrating light and temperature and humidity sensors, Bluetooth modules and Wi-Fi modules, providing stable power supply for LED lighting modules through BUCK and LDO voltage regulator circuits, and using MQTT protocol to achieve remote monitoring and management, so as to automatically adjust the brightness according to the real-time environment without manual intervention, effectively saving energy and improving the efficiency of urban lighting management.

[0007] The objective of the present invention is achieved through the following technical solutions: The invention discloses an intelligent optical street light based on light induction and wireless communication, wherein the street light comprises an STM32F407 chip core board, a power module, a light sensor, a temperature and humidity sensor, a Bluetooth module, a Wi-Fi module, a relay module and an LED light module installed on a lamp pole; the power module adopts a 24V lithium battery, which is respectively reduced to 5V and 3.3V by a BUCK circuit and an LDO step-down process to provide a working voltage for the module; the relay module is located below the chip core board, and the GPIO signal output by the chip core board controls the opening and closing of the relay, thereby controlling the on and off of the LED light; the light sensor communicates with the chip core board through an ADC, and automatically adjusts the light brightness according to light intensity data; the Bluetooth module HC-05 communicates with a host computer to monitor and configure the system status; the Wi-Fi module communicates with a cloud server through an MQTT protocol to realize remote data upload and control.

[0008] The intelligent light circuit light based on light sensing and wireless communication, the light sensor and the STM32F407 chip core board communicate through ADC to collect data, the Bluetooth module model is HC-05, and data interaction with the host computer is realized through serial port communication, and the Wi-Fi module communicates with the cloud server through the MQTT protocol to realize remote monitoring and control functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a block diagram of the structure of the intelligent street lamp based on light sensing and wireless communication of the present invention; Figure 2 This is a BUCK circuit diagram for converting 12V voltage to 5V voltage in the intelligent street lamp system based on light sensing and wireless communication of the present invention; Figure 3 The present invention is a circuit diagram of a 5V voltage-to-3.3V low-voltage difference linear voltage regulator for an intelligent street lamp system based on light sensing and wireless communication. DETAILED DESCRIPTION

[0010] The present invention will be described in detail below with reference to the embodiments shown in the accompanying drawings.

[0011] An intelligent optical circuit lamp based on light sensing and wireless communication, comprising an STM32F407 chip core board, a power module, a light sensor, a temperature and humidity sensor, a Bluetooth module, a Wi-Fi module, a relay module and an LED light module installed on a light pole; Chip core board: Using STM32F407 or similar high-performance microcontroller, responsible for overall data acquisition, processing and control.

[0012] Power module: 24V lithium battery is used as the main power supply, which is stepped down to 5V through the BUCK circuit, and then output 3.3V through LDO voltage regulation to provide stable working voltage for each module.

[0013] Light sensor: collects ambient light intensity data in real time through the ADC interface to achieve automatic dimming.

[0014] Temperature and humidity sensor: real-time monitoring of ambient temperature and humidity, combined with other data to assist system adjustment and fault diagnosis.

[0015] Communication module: including Bluetooth module (model HC-05) and Wi-Fi module. The Bluetooth module is used for local debugging and close-range data interaction; the Wi-Fi module realizes data transmission and monitoring with the cloud platform or remote server through the MQTT protocol.

[0016] Control drive module: mainly composed of relay modules, which control the switch and brightness adjustment of LED lights based on the GPIO signal of the chip core board, and cooperate with PWM modulation to achieve more precise brightness control.

[0017] LED lighting module: uses high-efficiency LED lamps, built-in LED drive circuit, and realizes light intensity regulation through PWM signal to ensure lighting effect and energy-saving performance. Example 1

[0018] The intelligent optical circuit lighting system is installed on urban roads or residential lamp poles. The entire system is powered by a 24V lithium battery. The power module is located at the bottom of the device and fixed to the inner cavity of the lamp pole through a special mounting frame. The chip core board STM32F407 is installed in a waterproof and dustproof housing and is connected to each sensor, communication module, relay module and LED lighting module in sequence.

[0019] Power Management Design The 24V lithium battery is reduced to 5V through the pre-designed BUCK step-down circuit. To prevent the problem of temperature rise during the step-down process, the power module adopts heat dissipation design and multiple protection circuits. The stepped-down 5V voltage is further processed by the AMS1117 series LDO regulator to output 3.3V, providing a stable voltage for the STM32F407 and low-power sensors. This design not only improves the stability of the system power supply, but also reduces the impact of power supply interference on signal acquisition.

[0020] Sensor data acquisition The light sensor uses a highly sensitive photoresistor or photodiode to input the ambient light intensity data into the chip through the analog-to-digital conversion (ADC) interface. The temperature and humidity sensor uses a digital interface (such as I2C or single-wire protocol) to provide real-time feedback on ambient temperature and humidity. The chip's built-in control algorithm makes judgments based on the light data and ambient temperature. When the ambient light is lower than the preset threshold, the LED brightness is increased through the PWM signal; otherwise, the output is reduced to achieve intelligent dimming. At the same time, temperature and humidity data can be used to determine whether the system is in an abnormal environment, thereby triggering preventive maintenance reminders.

[0021] Communication and remote monitoring The system is equipped with a Bluetooth module HC-05, which interacts with the STM32F407 through the serial port, facilitating on-site debugging and close-range parameter setting. At the same time, the Wi-Fi module connects to the local wireless network through a built-in antenna, and uses the MQTT protocol to upload device status, environmental data, and alarm information to the cloud platform in real time. The remote management platform can not only turn on and off the LED lights and adjust the brightness, but also perform firmware upgrades and data log analysis on the device, greatly improving the equipment maintenance efficiency and response speed.

[0022] LED lighting control strategy The LED light module uses high-brightness, low-power LEDs and has a built-in dedicated LED driver chip. The chip core board controls the relay module through PWM signals, thereby adjusting the power supply voltage and current of the LED light and accurately controlling the light output. To adapt to different scenarios, this system supports three modes: timed switch lights, automatic dimming, and manual remote control. Users can flexibly choose according to actual needs.

[0023] System debugging and troubleshooting Before the equipment leaves the factory, the Bluetooth and Wi-Fi modules are used to realize joint debugging with the host computer or mobile phone APP, calibrate the data collected by each sensor, and verify the automatic dimming logic. The system has an embedded fault diagnosis program. Once the data of the light sensor or temperature and humidity sensor is detected to be abnormal, or the communication link is disconnected, the system will automatically record the log and send out an alarm message through the remote platform, so that maintenance personnel can deal with the problem in time.

Claims

1. An intelligent optical circuit light based on light sensing and wireless communication, characterized in that: The street lamp includes an STM32F407 chip core board, a power module, a light sensor, a temperature and humidity sensor, a Bluetooth module, a Wi-Fi module, a relay module and an LED light module installed on a lamp pole; the power module uses a 24V lithium battery, which is respectively reduced to 5V and 3.3V by a BUCK circuit and an LDO, to provide a working voltage for the module; the relay module is located below the chip core board, and the GPIO signal output by the chip core board controls the opening and closing of the relay, thereby controlling the on and off of the LED light; the light sensor communicates with the chip core board through an ADC, and automatically adjusts the light brightness according to the light intensity data; the Bluetooth module HC-05 communicates with the host computer to realize the monitoring and configuration of the system status; the Wi-Fi module communicates with the cloud server through the MQTT protocol to realize remote data upload and control.

2. The intelligent optical circuit light based on light sensing and wireless communication according to claim 1, characterized in that: The light sensor and the STM32F407 chip core board communicate through ADC to collect data. The Bluetooth module model is HC-05, which realizes data interaction with the host computer through serial port communication. The Wi-Fi module communicates with the cloud server through the MQTT protocol to realize remote monitoring and control functions.

Images