Lamppost Management Module Using Carrier Current Communication
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Solution Overview
Problem
Current remote management systems for public lighting are limited in their ability to integrate additional services and require separate power and information transmission networks, making them costly and inefficient, with existing solutions being incompatible with IP data transmission and lacking flexibility in equipment deployment and management.
Innovation Solution
A lamppost management module connected to the electrical supply network that uses high-speed carrier current communication to manage both lighting and additional services like video protection, sound systems, and electric vehicle charging, with independent power control and data processing capabilities, allowing for secure and efficient transmission of information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If additional services are integrated into the lighting remote management system using carrier current transmission, then service functionality is improved, but compatibility with IP data transmission deteriorates and requires separate networks
Solution Approach 1:
The management module is designed to perform multiple functions: it manages public lighting through carrier current transmission (132 kHz phase modulation) and simultaneously provides IP-based data transmission for additional services (video protection, sound systems, WiFi, electric vehicle charging). This multi-functional design allows a single module to handle both lighting control and diverse service applications without requiring separate management systems.
Solution Approach 2:
The patent combines two previously separate systems (carrier current lighting management and IP-based data transmission) into a single integrated management module. The module includes both a carrier current transmitter for lighting control and an IP communication interface for service data exchange, merging their functions into one unified device that can operate both communication protocols simultaneously.
2Adaptability or versatility
If a separate power supply and information transmission network is implemented for additional services, then service independence is improved, but installation cost and civil engineering works increase
Solution Approach 1:
The management module serves as a universal platform that provides both power management for lighting and data communication for additional services through its dual protocol capability. Services such as video protection, sound systems, WiFi terminals, and electric vehicle charging stations can connect to the existing lamppost infrastructure and communicate through the module's IP interface without requiring separate power and communication networks.
Solution Approach 2:
The system utilizes the existing electrical power supply network and lamppost infrastructure to provide both power and communication functions. The management module leverages the already-deployed electrical grid for carrier current transmission and can provide IP-based data transmission over the same infrastructure, eliminating the need for additional civil engineering works or separate network installations.
3Loss of information
If router-switches are equipped on lampposts to transmit binary data, then data transmission capability is improved, but power consumption increases due to permanent lighting requirement
Solution Approach 1:
The management module enables services to operate independently of continuous lighting through its dual communication capability. Services can be activated only during their required operational periods, and the module can manage power delivery to service equipment separately from lighting power, allowing services to function during daytime or when lighting is off, thus reducing overall power consumption compared to permanent lighting requirements.
Solution Approach 2:
The system segments the power and data management functions: the carrier current channel handles lighting control and power management, while the IP communication channel handles service data transmission. This segmentation allows service equipment to receive power and transmit data independently, so services can operate without requiring the lighting to be permanently on, reducing energy consumption while maintaining data transmission capability.
4Ease of operation
If Home Plug PLC standard is used for power transmission, then short distance communication is improved, but coverage distance and environmental durability deteriorate
Solution Approach 1:
The management module employs carrier current transmission at 132 kHz with phase modulation, which is specifically optimized for public lighting networks. This frequency and modulation scheme provides robust communication over the extended distances between lampposts and maintains reliability in outdoor environmental conditions, unlike Home Plug PLC which is optimized for indoor short-distance applications. The parameter changes in frequency and modulation type enable the system to overcome the distance and durability limitations of standard Home Plug technology.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables independent management of lighting and services, facilitating energy savings, improving equipment longevity, and allowing for easy installation and reconfiguration without additional civil engineering works, while ensuring secure data transmission and efficient energy use.
Implementation Method 1
an injector/carrier current receiver in line by which it is connected to the electrical network and which allows it to communicate with a command center
Data Source
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Figure 3~4
AI summary
The invention relates to a module for managing the lighting of a lamppost, placed on the power supply network of a set of lampposts and controlled by a command centre. Said module communicates with the command centre by high-speed power line carrier (PLC) and is able to ensure the management of at least one complementary service. The invention also relates to a telemanagement system for public lighting, comprising a command centre for a set of lampposts and at least one such management module, said module communicating with said command centre by high-speed power line carrier (PLC).