When installing complex home security systems by yourself, reasonable planning and step-by-step implementation are the key. The following is a systematic operation guide, including technical details and pit avoidance tips： **1. Demand analysis and system design** 1. Threat assessment -Draw a floor plan of the house (it is recommended to use Sweet Home 3D or Floorplanner) -Mark high-risk areas: use the thermal icon to mark high-incidence points of theft (doors and windows on the first floor, garage entrances, etc.) -Determine the protection level: ordinary protection (door and window sensors) → enhanced protection (glass breaking sensor + motion tracking camera) 2. System architecture design -Recommend hybrid networking solution： ``` Zigbee/Z-Wave (low-power sensor) + PoE camera (high-bandwidth video) + WiFi (control center) ``` -Power supply plan planning： * Key equipment (control panel, NVR) is equipped with UPS power supply (APC Back-UPS 1500) • The sensor adopts CR123A lithium battery (guarantee 2-3 years of battery life) **2. Equipment selection and technical parameters** 1. Core component technical indicators -Network video recorder (NVR)： `'technical parameters Support H. 265+ encoding | 4 PoE + interface | dual hard disk bits | 256GB SSD system disk + 4TB monitoring-grade HDD ``` -Smart door lock： `'safety standards ANSI Grade 1 authentication | AES-256 encryption | anti-skid alarm | virtual password function ``` 2. Recommended equipment combination plan -Economical type: Reolink RLK8-800B4 (4K PoE set) + Ring Alarm Pro -High-end type: Ubiquiti UniFi Protect G4 series + Abode IOTA **3. Professional-level installation specifications** 1. Wiring engineering standards -Network wiring： `'Implementation standards CAT6 shielded wire | 30cm parallel spacing from strong wire | using Cable Matters crimping tool ``` -Camera installation： `'Installation specification Entrance and exit camera height 2.4-3 meters | tilt angle≤30° | IP67 protection level verification 2. Sensor debugging points -Motion detector： `'Debugging parameters Installation height 0.8-1.2 meters | detection mode: three-dimensional + microwave | pet immunity ≤20kg ``` -Glass breaking sensor： `'Calibration method Use a dedicated tester (such as DMP-100) to simulate the frequency range of 3-5kHz **4. Network security reinforcement** 1. Network isolation scheme `'Network architecture Create a separate VLAN (ID 100) | enable 802.1X authentication | Firewall rules restrict external IPS ``` 2. Encryption configuration -Video streaming: SRTP protocol + DTLS encryption -Mobile communication: two-way certificate authentication (mTLS) **5. Emergency plan design** 1. Power failure response -Calculation of battery life of core equipment UPS： `'Calculation formula (Total equipment power ×