2. Hardware Customization Specifications of Smart Tool Bag

2.1 Appearance & Structural Design

• Product Form: Backpack-type mobile smart tool bag, different from fixed intelligent tool cabinets;
• Dimensions: 420×220×350mm (L×W×H), adjustable according to customer requirements;
• Material: 1680D tear-resistant, waterproof and wear-resistant Oxford fabric with an extra thickened wear-proof base for compression and drop resistance;
• Internal Compartments: Main warehouse + divided sub-bags, equipped with customizable elastic straps and fixed slots for flexible tool placement;
• Weight: Empty bag weight ≤2.5kg (including all built-in electronic modules);
• Opening & Closing Structure: Dual zippers with anti-theft buckles (service life ≥5,000 opening/closing times); magnetic suction structure for the opening; copper metal zipper adopted to enhance signal shielding performance.

2.2 Integrated Built-in Electronic Modules (Non-exposed)

• Display Screen: Optional 0.96-inch OLED / 2.1-inch LCD screen, displaying inventory results, missing tool quantity, battery level and system time;
• Physical Keys: 3–4 functional keys (Power, Inventory, Confirm, Bluetooth Pairing);
• Audio Module: Speaker + buzzer for dual alarm and voice broadcast; volume ≥85dB, clearly audible in outdoor noisy environments;
• Indicator Lights: Dedicated lights for power, inventory, abnormality and Bluetooth status;
• External Interface: Type-C charging port; all antennas built-in with no exposed parts.

2.3 Power Supply & Endurance Specifications

• Battery: Built-in 10,000mAh rechargeable lithium battery with BMS protection circuit to prevent overcharge, overdischarge and short circuit;
• Endurance: ≥7 days of daily use on a full charge (10–20 inventory operations per day);
• Charging: 5V/2A Type-C fast charging, supporting operation while charging;
• Low Power Protection: Audible & visual reminder when battery ≤20%; automatic shutdown when battery ≤10% to protect battery life and local data.

2.4 Full-area Signal Shielding Design

• Special shielding treatment for signal leakage-prone positions (zipper gaps, display openings) to eliminate frequency leakage;
• Magnetic suction sealing for the opening to block radio frequency overflow channels;
• Copper metal zipper for enhanced shielding isolation;
• Recognition range strictly limited to the internal space of the bag, excluding irrelevant external RFID tags.

3. UHF RFID Recognition System (Metal Environment Optimized)

3.1 Reader & Antenna Array

• RF Standard: UHF RFID, compliant with ISO 18000-6C (EPC Gen2) international protocol;
• Operating Frequency: 915MHz (adjustable per regional radio regulations);
• Power & Antenna: Built-in reader with output power ≤1W, equipped with 2–4 built-in antenna arrays;
• Coverage: Uniform full internal coverage with no blind recognition spots;
• Anti-collision Performance: Simultaneous multi-tag reading ≥50 tags/second for lag-free inventory.

3.2 Anti-metal Passive RFID Tags

• Type: Passive anti-metal dedicated tags customized for metal tool identification;
• Size: Miniature dimension approx. 30×10mm, attachable to tool handles or non-working surfaces;
• Mounting: Waterproof & temperature-resistant adhesive backing with optional rivet holes for permanent anti-drop installation;
• Recognition Index: Stable recognition rate ≥99.5% for mixed metal tools (acceptance criterion);
• Encoding Rule: Each tag is programmed with a non-rewritable unique TID; rewritable EPC area for binding tool profile data.

3.3 Core Intelligent Recognition Functions

• Initialization & File Creation: Long press the inventory key for 3 seconds to generate a standard tool list via one-click scanning;
• Automatic Inventory: Inventory triggered automatically upon bag closing or user departure, with results generated within 2 seconds;
• Abnormality Alarm: Synchronous audible, visual and voice alarm for missing, extra or misplaced tools;
• Offline Operation: Full functions including inventory and alarm available offline; local cache supports ≥10,000 operation records;
• Shielding Isolation: Full-range shielding to eliminate external tag cross-reading and ensure inventory accuracy.

4. Software Management System (Developed by Our Team, Joint Debugging Supported)

4.1 Mobile Bluetooth APP (iOS + Android Compatible)

• Bluetooth Communication: Bluetooth 5.0 with stable connection distance ≥10 meters;
• Core Functions:
  • Tool bag parameter configuration, RFID tag entry, binding of tool name, number and photo;
  • Staff authorization management with employee ID binding; optional NFC card swiping, fingerprint and password login modes;
  • Record query: tool borrowing/return time, operator information, historical inventory results and abnormality logs;
  • Device maintenance: OTA remote firmware upgrade;
  • Data export: Inventory and borrowing records exportable in Excel/CSV formats.

4.2 Web-based Background Management System

• Basic Asset Management: Tool file archive, RFID tag management, staff management, tool bag management, borrowing & returning logs, automatic inventory reports, abnormality alarm summary;
• Full Lifecycle Traceability: Record the entire process of tool requisition, usage, return, maintenance and scrap, with traceability to specific personnel;
• Hierarchical Permission Control: Three-level permission isolation for administrators, team leaders and frontline employees;
• System Integration: Provide RESTful API interface for seamless docking with enterprise ERP, MES and fixed asset management systems;
• Deployment Modes: Dual options of public cloud SaaS deployment and on-premises private deployment.

5. Identity & Device Security Control (Optional Module, Enable on Demand)

• Identity Verification: Single or combined authentication via NFC card swiping, password and fingerprint;
• Full Operation Traceability: All actions including bag opening/closing, manual inventory and tool borrowing/return are recorded with operator, exact time and device information;
• Anti-tampering Protection: Built-in anti-disassembly sensor locks the system automatically in case of illegal disassembly and uploads alarm information to the background.

6. Environmental Protection Specifications & Core Acceptance Indicators

6.1 Environmental & Electrical Protection Standards

• Ingress Protection Level: IP65 (full dust-tight and water splash proof);
• Operating Temperature: -20℃～+60℃;
• Vibration Resistance: Compliant with industrial handheld equipment vibration test standards;
• ESD Protection: Built-in electrostatic discharge protection circuit, applicable to sensitive working scenarios with precision equipment.

6.2 Mandatory Core Acceptance Indicators

• Recognition Accuracy: ≥99.5% recognition rate in 10 consecutive inventory tests with mixed metal tools;
• Response Speed: ≤2 seconds from bag closing trigger to inventory result output;
• Endurance Duration: ≥7 consecutive days of normal operation on a full charge under standard working conditions;
• Alarm Reliability: 100% alarm trigger rate for missing, misplaced and extra tool abnormalities;
• Data Reliability: No loss of offline stored data, 100% data upload accuracy after network connection.