1. What is PLC?
1.1 Technical Definition
PLC (Power Line Communication) is an innovative communication technology that utilizes power lines as a natural transmission medium. By advanced signal modulation techniques, it superimposes high-frequency data signals onto standard power-frequency currents, enabling simultaneous power delivery and data communication. This technology eliminates the need for additional communication cables, it can be deployed directly over existing power lines to establish communication systems—truly achieving the dual functionality of "one wire, two purposes.
1.2 Core Technical Principles
Signal Modulation Mechanism: Adopting modulation techniques such as Orthogonal Frequency Division Multiplexing (OFDM) and Phase Shift Keying (PSK) to encode raw data signals into high-frequency carriers (1–30 MHz). This modulation employs frequency-domain superposition to effectively separate high-frequency data signals from 50/60 Hz power-frequency currents, ensuring interference-free transmission between two signals in PLC.
Coupling and Decoupling System:
Signal Injection: At the transmitting end, a dedicated coupling device injects high-frequency data signals into the power line safely and efficiently, enabling synchronized transmission of communication signals and power.
Signal Extraction: At the receiving end, a bandpass filter system precisely filters out power-frequency, extracting the 1–30 MHz high-frequency communication signals completely, original data is then restored via demodulation.
2. Technical Advantages
2.1 This technology shows significant advantages:First,no rewiring required, drastically reducing the costs of communication system deployment .In the second,it is feasible to achieve Plug-and-play using existing power networks, significantly shortening deployment cycles.Besides,dual-frequency transmission ensures independent operation of power delivery and data communication without mutual interference.
2.2 Technical Advantage Matrix
|
Metric |
Technical Breakthrough |
Application Value |
|---|---|---|
| Wiring Cost | Zero additional wiring | 80% reduction in installation costs |
| Coverage | Natural power line coverage | Overcomes wireless signal transmitting limitations |
| Penetration | Signals averse walls/floors | The stability of communication improves 90% in complex environments |
| Anti-Interference | Frequency division + error correction coding | Bit error rate below 0.01% |
3. Full-Stack Product Ecosystem
3.1 Development Toolchain – S130N-ISI Dev Kit：
▶ Hardware Integration: Includes modules, coupling circuits, and power supply, supporting direct 220V testing.
▶ Preconfigured Software: Built-in localized group management firmware, UART plug-and-play.
▶ Scenario Adaptability: Compatible with 485/UART interfaces for achieving zero-hardware-modification deployment.
3.2 PLC Core Component Specifications
|
Component |
Specifications |
Performance Highlights |
|---|---|---|
| Main Chip | VC6330 SoC (ARM Cortex-M3 + DSP) | Dual-core, 2MB Flash/1MB SRAM |
| Protocol | Q/GDW 11612/IEEE1901.1 | Supports BPSK/QPSK/16QAM modulation |
| Environment | -40°C to +105°C | Industrial-grade protection standard |
| Dimensions | 20.6×12.6×2.5mm (stamp hole packaging) | 40% smaller than traditional solutions |
3.3 Key components' innovations
PLCT-500010 Coupling Transformer:
▶ 1:1 turns ratio design, 5000VAC withstand voltage
▶ 1–30 MHz bandwidth coverage, insertion loss ≤3dB
▶ Dual-shielded design, common-mode rejection >40dB
Packaging technology Breakthroughs:
▶ Anti-oxidation gold fingers (contact resistance <50mΩ)
▶ Bottom epoxy filling (moisture resistance grade:IPX7 )
▶ Copper foil heat dissipation (temperature rise control <15°C)
4. Cloud Platform Synergistic Advantage
Significant Cloud Platform Synergistic Advantage：via high-efficiency SDK framework to simplify development，Device-end focuses on functional operations with auto data reporting; gateway requires only 2 APIs for PLC communication. Localized control supports group command latency <50ms, state sync error <10ms, even offline lasting operation. OTA System supports concurrent upgrades for 200 devices per gateway (100times faster than traditional methods), with full-process monitoring and rollback to ensure comprehensively management efficiency and operational stability of equipments.
5. Vertical Fields' Solutions
1.Smart Energy: Real-time meter data collection, PV plant remote O&M, energy management analytic system.
2. Industrial Control: Production line monitoring, smart warehouse logistics, remote fault diagnosis system.
3.Smart Buildings: Multi-floor lighting smart control, HVAC energy-saving optimization,environmental parameter synergistic regulation platform.
4. Rural Infrastructure: Low-cost power line broadband coverage's solution,, agricultural IoT monitoring system,, rural digital management platform.
6.Technical Service Guarantee System
1. End-to-End Support
Full technical path from chip design to turnkey solutions.
Multi-Scenario Adaptive Reference Design Library.
Real-time technical support.
2. Quality Control Standards
Compliant ISO 9001:2015 certification.
Mass-production validated (millions of units)
3. Cost Optimization
Modular design reduces R&D costs.
Mass production reduces material costs
Cloud collaboration cuts operational expenses.
Quogrisys's S130N-ISI Full-Stack Solution creates a closed-loop ecosystem from hardware to cloud services. With industrial-grade performance, efficient toolchains, and robust cloud platform integration, it provides highly competitive PLC solutions for smart energy, industrial control, and etc to usher industry into a new era of efficient development.
