Intelligent home control system ground anti-jamming method

System grounding methods include: floating ground, direct grounding, and capacitive grounding. For smart home control systems, it is a high-speed, low-level control device that should be directly grounded. Due to the influence of signal cable distributed capacitance and input device filtering, the signal exchange frequency between devices is generally lower than 1 MHz, so the smart home control system grounding line adopts one-point grounding and one-point one-point grounding. The centralized smart home control system is suitable for parallel grounding. The grounding point of the cabinet center of each device is led to the grounding electrode by a separate grounding wire. If the distance between the devices is large, a one-point grounding method should be used. Use a large cross-section copper busbar (or insulated cable) to connect the cabinet's center grounding point for each unit, and then connect the ground bus directly to the grounding pole. The grounding wire uses a copper wire with a section of more than 22mm2, and the total busbar uses a copper wire with a section of more than 60mm2. The grounding resistance of the grounding electrode is less than 2Ω, and the grounding electrode is preferably buried 10-15m away from the building. The grounding point of the smart home control system must be more than 10m away from the grounding point of the strong electrical equipment.