NB-IoT Street Lamp Control Device for Real-Time Monitoring
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Solution Overview
Problem
Conventional IoT technologies for roadway lighting management, such as GPRS, Zigbee, LoRa, and SigFox, face issues like high cost, low base load, complex networking, unstable networks, and difficulty in setting up equipment, making them unsuitable for refined management of smart cities, and they fail to timely monitor or predict faults in street lighting systems.
Innovation Solution
A street lamp intelligent measurement and control device based on NB-IoT technology, which includes an MCU circuit, electrical parameter measuring circuit, NB-IoT communication circuit, dimming circuit, and switching control circuit, allowing for real-time monitoring and control of street lamps, with features like automatic data upload, alarm signaling, and various switching and dimming strategies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional IoT technologies (GPRS, Zigbee, LoRa, SigFox) are used for roadway lighting monitoring, then basic monitoring functionality is achieved, but the system suffers from high cost, complex networking, unstable transmission, and short distance coverage
Solution Approach 1:
The patent uses NB-IoT technology as an intermediary communication solution that leverages existing cellular network infrastructure (base stations) to provide stable, wide-coverage communication. This mediator approach eliminates the need for complex proprietary networking while maintaining reliable data transmission between street lamps and the monitoring system.
Solution Approach 2:
NB-IoT provides a universal communication standard that can be deployed across diverse roadway lighting scenarios without requiring scenario-specific network configurations. The technology supports both uplink (lamp to server) and downlink (server to lamp) communication, enabling multiple functions including monitoring, control, and fault detection through a single communication infrastructure.
2Loss of information
If human patrolling and time-control switching are used for lighting management, then basic operation is maintained, but the system cannot timely monitor equipment status or locate faults
Solution Approach 1:
The system implements continuous feedback by having street lamps automatically report their operational status, power consumption, and fault conditions to the server in real-time. This feedback mechanism replaces manual patrolling, providing timely information about equipment status and enabling rapid fault location and response.
Solution Approach 2:
The street lamps are equipped with self-diagnostic capabilities that automatically detect and report their own status and faults without requiring human intervention. The embedded control units continuously monitor operational parameters and autonomously communicate with the server, enabling the system to self-monitor and self-report issues.
3Use of energy by moving object
If conventional IoT technologies are deployed, then some monitoring capability is provided, but power consumption is high and base load is low
Solution Approach 1:
The system uses periodic reporting where street lamps transmit data at optimized intervals rather than continuously. The server can configure different reporting frequencies based on operational needs, allowing the system to maintain adequate monitoring while significantly reducing power consumption compared to continuous transmission modes in other IoT technologies.
Data Source
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AI summary
The present invention provides a street lamp intelligent measurement and control device based on NB-IoT technology, including an MCU circuit, and an electrical parameter measuring circuit, an NB-IoT communication circuit, a dimming circuit and a switching control circuit respectively connected to the MCU circuit. The electrical parameter measuring circuit determines electrical parameter data and electrical energy data of a street lamp load, and transmits the electrical parameter data and the electrical energy data to the MCU circuit. The MCU circuit actively uploads the electrical parameter data and/or the electrical energy data to a remote control center according to a preset time interval, receives a controlling instruction from the remote control center, and sends out a switching signal and/or a dimming signal according to the controlling instruction. The switching control circuit controls an on-off of the street lamp load according to the switching signal sent by the MCU circuit. The dimming circuit adjusts a light intensity of the street lamp load according to the dimming signal sent by the MCU circuit. According to the technical solution provided by the present invention, the running status of the street lamp can be monitored in real time, and the energy consumption is analyzed, so that the purpose of refined electricity utilization is achieved. The present invention can realize various switching-dimming strategies, effectively reduce the loss of lighting power, and achieve the purpose of energy saving and emission reduction.