Yuqi Intelligent Enterprise IT infrastructure and systems integration
139 1891 4454 Contact Us
139 1891 4454 Contact Us

YUQI TOOLBOX

Find the tool for your task

Documents, time, currencies and engineering — one primary place for each tool.

AllProfessional ToolsPDF ToolsFiles & MediaImages & DesignTime & CalendarsCurrencies & FinanceWork & BenefitsHousing & RenovationHome & TravelHealth & FamilyText & LanguagesUnits & MathematicsDevelopment & EncodingNetwork Lookup & PlanningInteractive & ProductivityAI Image Prompt Library

Professional Tools

PoE Power 7

PoE Switch Power Budget CalculatorTotal endpoint power demand and compare it with a switch PoE budget after cable and safety margins.PoE Class Compatibility CheckerCheck IEEE PoE Type/Class compatibility and actual PD power, then recommend the minimum PSE standard.PoE Cable Loss & Delivered Power CalculatorEstimate PoE voltage drop, cable loss, and delivered endpoint power from voltage, load, length, and equivalent loop resistance.Switch Power & Annual Energy Cost EstimatorConvert switch base load and PoE output into input power, annual energy use, and electricity cost.Switch Uplink & Oversubscription PlannerEstimate access demand, oversubscription, and headroom from port count, access rate, utilization, and uplinks.PoE Camera Switch SizingSize PoE switches for cameras from ports and power budget.PoE AP Switch SizingSize PoE switches for wireless APs from ports and power budget.

Wireless & Wi-Fi 9

RSSI / SNR Wireless Link Quality AssessmentCalculate SNR from RSSI and noise floor and provide a practical Wi-Fi link quality rating.Free-Space Path Loss CalculatorCalculate free-space path loss for a frequency and distance under ideal line-of-sight conditions.Enterprise Wi-Fi AP Count EstimatorEstimate AP count from both coverage area and concurrent client capacity, then apply a design reserve.Wi-Fi Application Bandwidth PlannerEstimate required wireless capacity from users, concurrency, per-user demand, airtime efficiency, and reserve.RF Link Budget & Fresnel Zone AssistantCalculate free-space loss, received level, fade margin, midpoint first Fresnel radius, and clearance target.EIRP & Antenna Gain Compliance CalculatorCalculate EIRP from transmitter power, feed loss, and antenna gain, then compare it with a user-supplied local limit.dBm / mW / W Power ConverterConvert power bidirectionally between logarithmic dBm, milliwatts, and watts.High-density Wi-Fi Capacity & AP CountSize high-density Wi-Fi APs from throughput and concurrent-client constraints.Wi-Fi PHY & Effective ThroughputConvert PHY rate into aggregate and per-client throughput.

Fiber Links 7

Fiber Link Loss Budget CalculatorTotal fiber, connector, splice, and engineering losses and compare them with transceiver optical budget.Fiber Connector & Splice Loss CalculatorTotal passive optical losses from connectors, adapters, mechanical splices, and fusion splices.Optical Power Margin & Alarm EvaluatorCompare measured receive power with module sensitivity and overload limits, then calculate path loss and operating margins.PON Splitter & OLT/ONU Optical BudgetCheck a PON path from OLT output, ONU sensitivity, fiber, splitter, connector, splice, and engineering losses.BIDI Wavelength Pairing & Link CheckerCheck whether local and remote BIDI transceiver TX/RX wavelengths form a valid pair.CWDM/DWDM Wavelength & Channel PlannerGenerate a continuous wavelength and frequency plan from a selected DWDM frequency grid or CWDM wavelength spacing.Fiber Color Code & Core Sequence ReferenceGenerate fiber numbers, group numbers, and colors using the common 12-color base sequence.

Structured Cabling 7

Cable Box Count & Allowance CalculatorCalculate total cable length and full box count from outlet count, average run, box length, waste, and reserve.Structured Cabling BOM CalculatorEstimate patch panels, jacks, faceplates, patch cords, cable managers, and rack units from outlet demand.Structured Cabling Material & Cable Quantity AssistantEstimate horizontal cable, patch-cord lengths, design outlets, and labels from project quantities and editable allowances.Rack Unit & Equipment Layout PlannerTotal equipment, patching, cable management, power, ventilation, and growth space, then suggest a common rack size.Patch Cord & Cable Manager PlannerEstimate active ports, patch cords, patch panels, and cable managers from editable project rules.Cable Weight & Tray Load EstimatorEstimate installed cable weight and tray design load from cable quantity, length, manufacturer weight, reserve, and safety factor.MDF/IDF Floor & Point PlannerEstimate MDF, IDF, planned points, and access switches by floor.

Video Surveillance 5

CCTV Storage & Retention CalculatorEstimate usable and recommended raw CCTV storage from camera count, bitrate, recording schedule, retention, and overhead.CCTV Bandwidth & NVR Throughput PlannerSeparate recording ingress, live-view egress, playback egress, and recommended NVR interface capacity.Camera Focal Length, FOV & Coverage CalculatorCalculate field of view and theoretical scene dimensions from sensor size, focal length, and distance.DORI/PPM Pixel Density & Identification DistanceCheck horizontal pixel density against the current IEC 62676-4:2025 visual-performance gate.Camera Height, Tilt & Blind-zone AssistantCalculate near and far floor intersections and coverage depth from height, tilt, and vertical FOV.

Storage & RAID 8

RAID Usable Capacity CalculatorEstimate usable array capacity from disk count, disk size, RAID level, hot spares, and filesystem reserve.RAID Rebuild Time EstimatorEstimate RAID rebuild duration from rebuild size, observed throughput, workload contention, and controller efficiency.TB/TiB & Vendor Capacity Reality CheckConvert vendor decimal TB to binary TiB and apply an editable filesystem allowance.SSD Endurance TBW/DWPD Life CalculatorConvert capacity, DWPD, and warranty into TBW, then estimate life from host writes and write amplification.IOPS, Throughput & Queue Depth ConverterConvert IOPS and block size to throughput and estimate queue depth from latency.Storage Growth & Expansion ForecastForecast ending use and threshold timing from compound and fixed monthly growth.Dedupe & Compression Capacity EstimatorEstimate physical storage after deduplication, compression, and metadata overhead.Ceph k+m Erasure-code CapacityEstimate Ceph erasure-coded usable capacity from OSDs, k+m, and reserve.

Data Center 11

Rack Power & Heat Load CalculatorTotal rack IT load, apply growth allowance, and convert it to electrical and cooling requirements.UPS Capacity & Load Ratio SizerCalculate required UPS kW/kVA and check a selected unit.UPS Runtime Range EstimatorEstimate a UPS runtime range from battery, load, efficiency, and health inputs instead of presenting Wh/W as exact runtime.Single/Three-phase kW, kVA & Current CalculatorCalculate apparent power and current from phase mode, power, voltage, power factor, and efficiency.Data Room Cooling & Precision AC EstimatorTotal room heat sources, add design reserve, and calculate duty and N+1 cooling units.Data Center IT Load & Facility Power SizerTotal IT power, add growth, and calculate facility power from design PUE.PUE/DCiE & Measurement Boundary AssistantCalculate PUE, DCiE, and non-IT energy while distinguishing an instant estimate from a formal metered boundary.Data Center Annual Energy Cost & Efficiency ScenarioCompare annual energy and cost from IT load, current and target PUE, schedule, and electricity price.UPS Battery Series/Parallel Bank PlannerSize UPS battery series and parallel strings from bus voltage and runtime energy.Modular UPS Redundancy & Module CountSize modular UPS active and redundant modules from usable module capacity.A/B Feed Load Balance PlannerCalculate normal A/B feed split and automatically check N-1 capacity after either feed fails.

Servers & Virtualization 9

Virtualization CPU/vCPU Oversubscription PlannerCalculate usable physical cores, vCPU demand, and oversubscription after HA and host reserves.Virtualization Memory Reservation & HA Capacity PlannerCalculate HA memory capacity after failed-host and system reserves, platform overhead, and growth.LLM Weights & Inference VRAM EstimatorEstimate inference VRAM from weights, KV cache, and runtime overhead and compare it with aggregate GPU VRAM.Kubernetes Node & Pod Capacity PlannerEstimate allocatable cluster resources and pod capacity after system and DaemonSet reserves.Container Requests & Limits Right-sizing AssistantDerive CPU and memory requests and limits from P95 and peak telemetry with editable buffers.Server Power, PDU & Rack Placement PlannerCalculate normal and failover current, recommended feed capacity, and rack count by rack units.GPU Server Power & Electrical EstimatorEstimate input power, design power, and heat from GPU TDP, other components, PSU efficiency, and reserve.KV Cache Context Memory EstimatorEstimate inference KV cache from layers, KV heads, head dimension, context, batch, and data type.Server Cluster BOM & N+1 Node PlannerCalculate CPU- and memory-driven node counts with growth, utilization, and failed-node reserve.

Backup & Recovery 8

Backup Window & Bandwidth CalculatorEstimate sustained backup bandwidth from dataset size, daily change rate, reduction ratio, backup window, and protocol efficiency.Full/Incremental Backup Capacity & Retention PlannerEstimate repository capacity from protected data, full copies, daily change, incremental days, reduction, and overhead.GFS Retention & Media Count PlannerTotal daily, weekly, monthly, and yearly generations and estimate media count.3-2-1-1-0 Backup Strategy CheckerCheck copies, media, offsite, immutable/offline, and zero-error recovery verification controls.RPO/RTO & Recovery Scenario CalculatorEstimate maximum data loss at target RPO and the RTO gap from restore throughput and dependency recovery.Replication Bandwidth & Backlog Catch-up CalculatorCompare continuous change demand with effective link bandwidth and estimate backlog catch-up time.Snapshot Capacity & Merge Risk EstimatorEstimate snapshot capacity and merge time after subtracting active write throughput.Immutable Backup Capacity & Lock-period PlannerEstimate immutable repository capacity from protected data, change, lock days, full copies, reduction, and overhead.

Electrical Engineering 10

DC, Single & Three-phase Power Current CalculatorConvert power to input current and apparent power for DC, single-phase, or balanced three-phase systems.DC, Single & Three-phase Voltage Drop CalculatorCalculate line voltage drop from user-entered resistance, reactance, length, current, and power factor.Cable Size & Ampacity Pre-selectorApply entered temperature, grouping, and installation factors to candidate ampacity and check the project voltage-drop limit.Breaker, Fuse & RCD Pre-selection CheckerCheck entered design current, protection rating, cable ampacity, fault current, breaking capacity, and RCD threshold.Low-voltage Central Power Supply SizerSize central low-voltage power current, power, and module count from device load, startup, and reserve.Battery Ah/Wh & Load Runtime CalculatorEstimate usable energy and runtime from voltage, Ah, efficiency, depth of discharge, health, and rate derating.Battery Series, Parallel & Consistency CheckerCalculate battery-bank voltage, capacity, and energy and report consistency from user-measured inputs.12V/24V Device Voltage Drop & PSU ZoningEstimate devices per power zone from both minimum remote voltage and PSU-current constraints.Grounding Conductor & Copper Bar Pre-sizingCalculate required area from entered current density and short-time thermal inputs and compare with a selected bar.Lightning Protection Zone Geometry EstimatorPerform a simplified 2D geometry estimate using an entered protection angle or rolling-sphere radius.

LED & AV 10

LED Wall Size, Resolution & Pixel CountCalculate wall size, resolution, pixel count, and pitch from whole-module geometry.LED Pixel Pitch & Viewing Distance AssistantCalculate detail and comfort viewing distances from pixel pitch and a user-entered pixel visual angle.LED Wall Power Distribution & PSU PlannerSize LED PSUs and circuits from module average/peak power, load limits, and design reserve.LED Module, Receiving Card & Processor Load PlannerEstimate modules, receiving cards, data ports, and processors from user-entered pixel capacities.LCD Video Wall Size & Layout PlannerCalculate LCD wall envelope dimensions from panel size, combined bezel, rows, columns, and service clearance.Projector Throw Distance, Screen Size & Lens RatioCalculate throw-distance range and image diagonal from lens ratio, width, aspect ratio, and tolerance.Projector Brightness, Ambient Light & Screen GainEstimate screen illuminance and simplified ambient contrast from lumens, area, gain, utilization, and ambient light.Conference Display Size & Viewing DistanceCalculate minimum display dimensions from the farthest viewer and an entered image-height viewing angle.HDMI, SDI & HDBaseT Distance/Bandwidth AssistantEstimate uncompressed data rate and check entered link capacity and certified distance.AV Matrix Size & Port Planning AssistantCalculate recommended matrix input and output capacity from endpoints, growth reserve, and redundancy.

Professional Audio 8

Amplifier Power & Headroom CalculatorSize amplifier power from loudspeaker sensitivity, distance, target SPL, and peak headroom.70V/100V Distributed Audio Power & Zone PlannerTotal distributed-speaker taps and size amplifier capacity with line loss and reserve.Speaker Impedance Series/Parallel CalculatorCalculate equivalent impedance, speaker count, and total power for identical series-parallel speakers.SPL Distance Loss & Speaker SummationEstimate listening-position SPL from reference level, distance, speaker count, and summation efficiency.Public Address Cable Line Loss CalculatorCalculate constant-voltage PA line loss from voltage, load, length, and entered conductor resistance.Meeting Room Speaker Coverage & Spacing EstimatorEstimate ceiling-speaker spacing and count from room geometry, coverage angle, and overlap.RT60 Reverberation & Absorption EstimatorEstimate RT60 and additional absorption with the Sabine equation.Meeting Room Audio Channel & BOM PlannerBuild a room-level microphone, speaker, amplifier, DSP, and controller count summary.

Access & Building 8

Access Control Door Controller & Reader BOMBuild an access-control core BOM from doors, readers, controller capacity, and reserve.Access Control PSU, Lock & Battery PlannerSize access-control PSU current, design power, and backup battery from connected loads.Pedestrian Gate Throughput & Queue EstimatorEstimate pedestrian gate capacity and required lanes from peak flow and service time.Parking Entry & Barrier Throughput PlannerEstimate parking-lane capacity from peak vehicle flow, service time, and exceptions.RS-485 Bus Length, Device Count & Termination CheckerCheck an RS-485 segment against entered product limits, topology, and termination.Modbus Address & Register Map PlannerGenerate a deterministic Modbus device-address and register map.BACnet Point, Instance & Network PlannerPlan BACnet devices, points, device instances, and network count.ELV Point Schedule & Multi-system BOM WorkbenchSummarize ELV points and derive core switch and controller quantities.

ELV Construction 8

Cable Tray Support & Hanger Quantity EstimatorEstimate tray supports and hanger rods from route length, spacing, fittings, and reserve.Conduit, Clamp & Bend Quantity EstimatorEstimate conduit, clamps, and bends from route geometry and waste allowance.Steel & Copper Section Weight CalculatorCalculate material weight from entered section area, length, quantity, and density.Firestop Material Quantity EstimatorEstimate firestop volume and mass from opening geometry, cable fill, density, and waste.Equipment Plinth & Rack Base Material EstimatorEstimate base-frame profile length and weight from rack dimensions and entered unit weight.CCTV Pole Foundation Concrete Pre-estimatorEstimate CCTV pole foundation concrete from entered geometry, displacement, and waste.Outdoor Enclosure Size, Thermal & Power AssistantEstimate minimum enclosure dimensions and active cooling shortfall.ELV BOM Allowance & Pre-quotation CheckerCheck material allowance, labor, freight, contingency, tax, and total before quotation.