Prompt

draw schematics based on this 1. Power System Overview The power system is designed to support multiple interconnected devices, each with varying voltage and current requirements. The key components include: • Linovision POE-SW508G (with 3 Cameras) – powered via a 56V DC supply. • Jetson AGX Orin – high-performance computing unit requiring 12V DC. • LSP-LRS-0310F-04 Laser Module – operates at 12V DC with minimal power needs. • Raspberry Pi 4 Model B – low-power edge processing device requiring 5V DC. • Adjustable Devices (microcontroller, fans, sensors) – require a range of voltages between 5–56V DC depending on load and configuration. Each device is powered using one or more Mean Well DIN rail power supplies, distributed as follows: Power Supply Unit Output Voltage Max Current Key Devices Powered NDR-240-48 48V DC (adj. up to 56V) 5A Linovision POE-SW508G, adjustable components EDR-120-12 12V DC 10A Jetson AGX Orin, Laser Module, adjustable components HDR-60-5 5V DC 6.5A Raspberry Pi 4, adjustable components Shelly Pro 4PM Relay-based Smart Power Control n/a (switching) Monitors and controls AC supply to the power units The Linovision POE-SW508G switch provides power and data via Power over Ethernet (PoE) to the PTZ camera and three fixed cameras. All of the system's visual devices receive their indirect power from the switch, which is powered by the NDR-240-48 (configured to 56V). 2. Power Consumption Analysis The average and maximum power requirements for every device have been considered to guarantee the system's dependability and safety. Based on device datasheets and performance ranges, the voltage, current, and power values are summarized in the table below: Table 1: Power Demand per Device Component Typical Power Demand Peak Power Demand Voltage Typical Current Peak Current Linovision POE-SW508G (w/ 3 Cameras) 42W 59.8W 56V DC 0.75A 1.07A Jetson AGX Orin 27.5W (15–40W) 60W 12V DC 2.29A 5A LSP-LRS-0310F-04 Laser Module 0.7W 3W 12V DC 0.058A 0.25A Raspberry Pi 4 Model B 4.5W (3–6W) 7.5W 5V DC 0.9A 1.5A Adjustable (Microcontroller + Fans + Sensors) 5W (est.) 10W (est.) 5–56V DC 0.09A @ 56V / 0.42A @ 12V / 1A @ 5V 0.18A @ 56V / 0.83A @ 12V / 2A @ 5V Total 79.7W 140.3W — — — Notes: • Peak current values define cable gauge, power reserve, and PSU safety margins. • Typical current values guide thermal dissipation analysis and efficiency evaluation. • Linovision POE-SW508G runs at 56V DC for optimal POE+ delivery across 3 cameras. • Jetson AGX Orin's consumption varies depending on workload. Sharp idle/load transitions justify a high peak allowance. • The adjustable row represents auxiliary loads that may be modular or reconfigured. A voltage range is considered to accommodate design flexibility. 3. Power Supply Selection and Justification Each device's voltage and current needs were considered while choosing a power supply, with special consideration given to peak power demands, efficiency, thermal performance, noise immunity, and general reliability. The system uses Shelly's smart relay unit and three DIN rail-mounted industrial-grade DC power supplies from Mean Well for monitoring and control. 3.1 Power Supply Units Power Supply Model Output Voltage Rated Current Power Rating Efficiency (typ.) PSU 1 NDR-240-48 48V DC (adjustable up to 56V) 5A 240W 90% PSU 2 EDR-120-12 12V DC 10A 120W 88% PSU 3 HDR-60-5 5V DC 6.5A 60W 84% Smart Control Shelly Pro 4PM AC relay control (no DC output) 4x 16A relays AC Mains Switching n/a 3.2 Justification of Each Supply ➤ NDR-240-48 (48V Adjustable to 56V) • Purpose: Powers Linovision POE-SW508G (56V) and adjustable load components (e.g., sensors/fans requiring 48–56V). • Why This Model: This PSU supports up to 56V output via Vadj trim potentiometer, aligning precisely with the POE switch’s DC requirement. • Headroom: 5A × 56V = 280W capacity vs. ~70W load peak ⇒ 2× margin for thermal safety and transient spikes. • Application Fit: This industrial-grade, high-efficiency (90%) compact DIN rail mount is perfect for enclosure environments. It operates at -20°C to +70°C. ➤ EDR-120-12 (12V) • Purpose: Powers Jetson AGX Orin, Laser Module, and 12V peripherals (adjustable row). • Why This Model: Offers 10A continuous current, exceeding the Jetson's peak demand (5A), plus an allowance for other 12V devices. • Headroom: 10A × 12V = 120W vs. peak ~70W load. Reduces stress during startup current surges. • Application Fit: Compact and cost-effective for medium-current 12V devices; meets EN61000-6-2/-4 EMC immunity standards. ➤ HDR-60-5 (5V) • Purpose: Powers Raspberry Pi 4 Model B and 5V adjustable peripherals. • Why This Model: Supports up to 6A output; ideal for 5V logic systems and embedded boards. • Headroom: 6A × 5V = 30W vs. ~15W peak demand. Good redundancy, low voltage ripple. • Application Fit: Ultra-slim DIN rail profile (width 52.5 mm), class II isolation, high MTBF. ➤ Shelly Pro 4PM • Purpose: Provide smart AC control and real-time energy monitoring for the entire DC power rail. It can trigger alarms, shutdowns, or logging via Wi-Fi. • Why This Model: Allows IoT integration of traditional AC power systems, enabling remote diagnostics and programmable logic. • Application Fit: It supports automation frameworks (MQTT, REST API) and is DIN mountable, which is suitable for industrial automation layers. 4. Power Distribution System: Wiring & Connectivity Plan Through the power distribution network's architecture, all system components will get a safe, effective, and dependable DC power supply. The distribution pattern and connection method to direct the subsequent integration phase are described below. 4.1 General Wiring Architecture According to the architecture's centralized power distribution model, each power supply unit (PSU) is installed on a DIN rail panel and supplies DC power to every load over separate, isolated lines. Below is an overview of the output voltage rails and the loads connected to them: Voltage Rail Primary PSU Connected Devices 56V DC NDR-240-48 (adjusted from 48V) Linovision POE-SW508G, adjustable components 12V DC EDR-120-12 Jetson AGX Orin, Laser Module, 12V adjustable loads 5V DC HDR-60-5 Raspberry Pi 4, 5V adjustable loads Each PSU output will be distributed via shielded or fused terminal blocks to avoid overload or short-circuit damage. Later, individual current monitoring may be included to measure consumption in real-time and identify irregularities. 4.2 Wire Gauge and Cable Routing • Cable gauge selection will be based on the following criteria: o Maximum current per rail (e.g., Jetson’s peak 5A @ 12V) o Voltage drop limitations over cable lengths o Thermal derating within enclosures • Routing strategy includes: o Separation of high-voltage (56V) and low-voltage (5V, 12V) DC lines to reduce electromagnetic interference o Use of cable trays or DIN-mounted ducting for neat, serviceable organization o Color-coded insulation for voltage identification (e.g., red = 5V, yellow = 12V, orange = 56V) 4.3 Connectors and Interfaces Each load device will be interfaced via connectors matching the device's input specs. Current tentative plans: • Linovision POE-SW508G: Barrel jack or direct terminal input rated for 56V • Jetson AGX Orin: 5.5mm DC plug (optional) or screw terminal block (12V rail) • Raspberry Pi 4: USB-C or GPIO pin header (5V and GND) • Laser Module: Terminal block connection for 12V input • Adjustable Components: TBD (likely pin headers, DuPont, or screw terminals, depending on enclosure layout) 5. Power System Schematic Overview This section presents a logical block diagram showing the whole power flow. It begins at the AC mains source and moves via each power supply unit to the corresponding devices. The diagram highlights voltage levels, device groups, and monitoring control layers. 5.1 Text-Based Block Diagram (Simplified Representation) ┌───────────────────────┐ │ AC MAINS INPUT │ └────────┬──────────────┘ │ ┌────────────▼────────────┐ │ Shelly Pro 4PM ←Relay control + energy monitoring └────┬──────────────┬─────┘ │ │ ┌──────────────▼─┐ ┌────▼───────────────┐ │ NDR-240-48 PSU │ │ HDR-60-5 PSU │ │ (56V DC, 5A) │ │ (5V DC, 6A) │ └────┬───────────┘ └────┬───────────────┘ │ │ ┌──────────▼---───────┐ ┌─────────▼────────┐ │ Linovision POE │ │ Raspberry Pi 4 B │ │ SW508G(cameras +PTZ)│ └──────────────────┘ └──────────────---────┘ ┌──────────────────────────┐ │ Adjustable 56V Devices │ └──────────────────────────┘ ┌────────────────────-────────┐ │ EDR-120-12 PSU │ │ (12V DC, 10A) │ └──────────┬──────────────────┘ │ ┌───────────────────────▼────────────┐ │ Jetson AGX Orin │ ├────────────────────────────────────┤ │ LSP-LRS-0310F-04 Laser Module │ ├────────────────────────────────────┤ │ Adjustable 12V Components │ └────────────────────────────────────┘ 5.2 Description of Flow • Shelly Pro 4PM is the central control unit for powering the entire DC subsystem. It receives the AC input and selectively enables power delivery to the three PSU units. • NDR-240-48 powers the high-voltage 56V rail, mainly for the PoE switch and other adjustable 56V loads. • EDR-120-12 powers mid-level 12V components, including the Jetson AGX Orin, Laser Module, and others. • HDR-60-5 provides a 5V regulated supply to the Raspberry Pi and all low-voltage embedded devices. • Depending on the application, adjustable components are grouped under all three PSUs to accommodate variable voltage needs for microcontrollers, fans, or sensors. • All rails are isolated and independently protected to avoid cascading failures in the event of short-circuit or overload conditions.