Direct-current drive-free intelligent lighting control system and self-healing control and single lamp positioning method

Abstract

The invention discloses a direct-current drive-free intelligent illumination control system and a self-healing control and single lamp positioning method. The system is composed of a direct current centralized power supply device, a direct current power line carrier communication unit, a single lamp ID identification unit, a loop topology automatic generation unit, a fault detection and positioning unit, a local self-healing control unit, a concentric ring partition light control unit and an old line reconstruction adaptation unit. The system adopts concentrated direct-current power supply, and the lamp is not independently driven; power supply and communication collinear transmission is realized through direct-current power carrier waves; each lamp is internally provided with a unique single lamp ID, identity information is automatically reported after the lamp is powered on, the system automatically identifies the number of the lamps, automatically identifies and determines the addresses of the lamps, and automatically generates a loop topological graph; the system has the functions of power-off self-healing, disconnection self-healing, fault isolation and local autonomy, can realize single-lamp independent control, partitioned intelligent light control and accurate fault positioning, and is especially suitable for old line energy-saving reconstruction and large-scale illumination upgrading. The system solves the problems that a traditional illumination driver is prone to damage, wiring is complex, intelligence depends on a network, maintenance is difficult, installation and debugging are tedious, and old line reconstruction cost is high, and is suitable for newly-built illumination and energy-saving reconstruction projects such as factories, warehouses, garages, parks and municipal street lamps.

Description

Technical Field

[0001] This invention belongs to the field of intelligent lighting control technology, specifically relating to a low-voltage DC driverless intelligent lighting control system and a self-healing control and single-lamp positioning method. Background Technology

[0002] Traditional smart lighting relies on independent drivers, wireless communication, or dedicated control lines, which suffers from problems such as easily damaged drivers, complex systems, easy loss of control during network outages, and high construction costs. AC power line carrier interference is significant and unstable, making it difficult to achieve reliable single-lamp control. Existing lighting systems lack a complete self-healing mechanism, requiring manual reset during power outages or abnormalities. Most systems do not have single-lamp ID recognition and automatic topology generation functions, making it impossible to accurately locate faults. Lamp installation requires address configuration and pairing, resulting in low construction efficiency. Energy-saving retrofitting of old circuits requires rewiring, which is complex, time-consuming, costly, and has poor compatibility.

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a driverless, DC, carrier communication, automatic identification, automatic topology, self-healing stability, and intelligent lighting system and control method that can directly utilize old lines for energy-saving retrofitting.

[0004] The system adopts a centralized power supply architecture with an AC-to-DC distribution box, converting 220V AC power into stable DC 24V or 48V low-voltage DC power. The lamps do not have independent driver power supplies; they are directly powered by the low-voltage DC to illuminate the driverless LEDs. Power supply and communication signals are transmitted on a single line via DC power line carrier, eliminating the need for additional wiring. Each lamp has a unique individual lamp ID, automatically identified upon power-on, automatically connected to the network, and automatically reports its identity information. The system automatically identifies the number of lamps based on their individual lamp IDs. It establishes relationships and automatically generates loop topology diagrams; it monitors voltage, current, and communication status in real time to accurately locate faulty lamps; it stores control strategies locally and has local autonomous capabilities for power outage self-healing, disconnection self-healing, and fault isolation; it supports independent dimming of concentric ring zones and scene-adaptive light control; and it can directly utilize existing power supply lines for energy-saving retrofitting without rewiring.

[0005] The beneficial effects of this invention are: Completely eliminates lamp drivers, resulting in a more stable system, longer lifespan, and lower failure rate; automatic single-lamp ID recognition ensures immediate online status upon power-on, eliminating the need for manual configuration; automatically generates circuit topology diagrams for visual management; precise fault location significantly improves maintenance efficiency; features local self-healing capabilities, automatically recovering after power outages or disconnections without manual intervention; DC power line carrier co-line transmission eliminates the need for additional wiring, bandwidth, and cabling; supports concentric ring zone control for significant luminous efficiency and energy savings; local autonomy eliminates reliance on cloud networks, ensuring uninterrupted control even during network outages; adaptable to upgrading older wiring systems, offering fast, low-cost, and highly compatible installation. Detailed Implementation

[0006] Example 1: Local Self-Healing Control The local self-healing control unit in this embodiment uses a Flash storage medium and stores a preset control strategy, including: Parameters of the lights before the power outage, such as brightness, color temperature, and scene mode; The default scene mode after power failure recovery (e.g., full brightness 50%). Autonomous logic after disconnection (such as maintaining the last state or switching to safe mode).

[0007] When the system detects a power outage or disconnection, the local self-healing control unit automatically reads the preset strategy from the Flash memory and restores the operation of the lights without manual intervention.

[0008] Example 2: Renovation of Old Power Lines The old line renovation adaptation unit in this embodiment includes a signal coupling circuit. This circuit consists of a coupling capacitor C=100nF, an inductor L=10mH, and a resistor R=1kΩ, and is used to couple a DC power line carrier signal to the existing 220V AC line. During the renovation, simply replace the existing lamps with driverless lamps from this system and connect them to the existing line through the coupling circuit; no rewiring is required.

[0009] Example 3: Single Lamp ID and Topology Generation In this embodiment, the single-lamp ID identification unit uses a built-in EEPROM to store a unique ID. The ID encoding rule is "lamp type-installation location-serial number", for example, "industrial and mining lamp-workshop A-001". After the lamp is powered on, the ID information is broadcast via DC power line carrier. The loop topology automatic generation unit receives the broadcast data and automatically generates a lighting topology diagram of workshop A, displaying the position, status and connection relationship of each lamp. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the concentric ring zoned light control lamp of the present invention.

Claims

1. This invention discloses a self-healing control and single-lamp positioning method and system for a low-voltage DC driverless intelligent lighting control system. It adopts an AC-to-DC distribution box centralized power supply architecture, converting 220V AC power into stable DC24V or DC48V low-voltage DC power. The lamps are driverless, directly powered by low-voltage DC-powered LEDs. The system achieves co-line transmission of power supply and communication signals via DC power line carrier, supporting human body and vehicle sensor trigger control. Each lamp has a unique single-lamp ID, enabling automatic network access, automatic loop topology generation, real-time accurate location of faulty lamps, and self-healing from network outages, self-recovery from disconnections, and fault isolation in a cloud-free local environment. Furthermore, combined with central light control, concentric ring lamp arrangement, and coaxial collaborative light distribution, energy-saving retrofits can be directly performed using existing wiring without rewiring.

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