Coal Mine Emergency Rescue Broadband Converged Communication System

Visual Elements: Underground coal mine roadway schematic + three core equipment icons + "MT/T 1129-2011 Compliance" badge

Page 2: Table of Contents

1. Industry Pain Points and System Positioning (including compliance objectives)
2. System Architecture: MCC6000/RG1100/MCC570 Composition and Standard Alignment
3. Core Equipment Analysis (Full-Dimension Compliance Verification)
4. System Core Features (Anchored to Standard Requirements)
5. Compliance and Application Value Summary

Page 3: Industry Pain Points and System Positioning

1. Core Pain Points in Coal Mine Emergency Rescue (Aligned with Standard Gaps)

• "Three Disruptions" Dilemma: Traditional systems struggle to meet MT/T 1129-2011 Clause 5.6.1 "Base Station to Surface ≥10km" transmission requirements; communication is interrupted after network disconnection
• Insufficient Battery Life and Capacity: Existing mobile stations offer battery life ≤4h (failing to meet Clause 5.6.7 "≥11h including 2h calls"), and support ≤10 connected terminals (below the Clause 5.6.2 "≥18 terminals" requirement)
• Lack of Explosion-proof and Immunity Protection: Some devices are not intrinsically safe (non-compliant with Clause 5.10), and electromagnetic immunity has not passed GB/T 17626.3~5 testing

2. System Positioning and Compliance Objectives

• Core Positioning: Based on MT/T 1129-2011, build a "Surface - Underground - Individual Soldier" three-tier compliant system
• Compliance Objectives:

✅ Transmission distance, battery life, and capacity fully meet Clause 5.6 technical specifications

✅ 100% intrinsically safe underground equipment (compliant with GB 3836.1~4, corresponding to Clause 5.10)

✅ Immunity and reliability meet Clause 5.8 and 5.9 requirements (MTBF≥800h)

Page 4: System Architecture — Three-Device Composition and Standard Alignment

1. Architecture Logic (Fully Matching MT/T 1129-2011 Clause 5.4 System Composition)

Equipment Tier	Equipment Model	Corresponding Standard Component	Core Parameters (Anchored to Standard Clauses)
Surface Command Tier	MCC6000	Surface Base Communication Terminal	Power adapter 380V/220V±10% (5.3), MTBF≥800h (5.9)
Underground Relay Tier	RG1100	Base Station	Transmission to MCC6000 ≥10km (5.6.1), battery life ≥11h (5.6.8)
Underground Individual Soldier Tier	MCC570	Mobile Station	Distance to RG1100 ≥500m (5.6.1), battery life ≥11h (including 2h calls) (5.6.7)

2. Key Collaborative Scenarios (Compliance Verification)

• Network Disruption Response: MCC570 supports off-network direct calling (compliant with 5.5.7), RG1100 operates independently off-network (compliant with 5.5.6), meeting the "communication without base station" requirement
• Transmission Redundancy: RG1100 supports fiber optic (2.5G) and field wire (10km), both meeting Clause 5.6.1 "Base Station to Surface ≥10km" standard
• Capacity Adaptation: System supports ≥18 MCC570 connections, meeting Clause 5.6.2 "Mobile station quantity ≥18" requirement

Page 5: Core Equipment ① — MCC6000 Surface Base Communication Terminal (Fully Compliant)

1. Core Configuration (Item-by-Item Alignment with MT/T 1129-2011)

• Power Supply and Environment:
  • Surface power adaptation: 380V/220V (deviation -10%~+10%), 50Hz (±5%), compliant with Clause 5.3
  • Operating environment: 15℃~30℃ (humidity 40%~70%), matching Clause 5.2.1 equipment room environment standard
• Communication and Reliability:
  • Multiple links: fiber optic (2.5G), field wire (10km), meeting Clause 5.6.1 "Base Station to Surface ≥10km" transmission requirement
  • Reliability: MTBF≥800h, passing GB/T 5080.7 timed censoring test (6.10)
• Immunity Performance:

Passes GB/T 17626.3~5 (Level 1) RF/pulse burst/surge immunity tests, compliant with Clause 5.8

2. Core Rescue Functions (Covering Full Clause 5.5 Functions)

• Emergency Call/All Call: Supports initiating emergency calls (5.5.4) and all calls (5.5.5), surface commands reach underground terminals within 10s
• Data Storage: Local archiving of images/audio/data, compliant with Clause 5.5.11 storage requirements
• Network Communication: Connects to coal mine intranet for remote dispatch (5.5.12)

Page 6: Core Equipment ② — RG1100 Underground Base Station (Intrinsically Safe + Relay Compliance)

1. Core Configuration (Anchored to MT/T 1129-2011 Clauses 5.10/5.6)

• Explosion-proof and Protection:
  • Intrinsically safe type (Ex ib I), compliant with GB 3836.1~4, passing Clause 6.11 explosion-proof performance test (5.10)
  • Dimensions 250×250×50mm, adapted to underground 0℃~40℃ (humidity ≤95%) environment (5.2.2)
• Relay and Battery Life:

Relay Method	Parameters (Compliant Clauses)
Field Wire Bus	2Mbps within 10km, meeting Clause 5.6.1 "≥10km"
WIFI HALOW (900M)	10Mbps within 1.2km, MCC570 connection ≥500m (5.6.1)
Fiber Optic Chain Network	2 Gigabit optical ports, supporting chain network expansion

• Battery life: intrinsically safe battery ≥11h, compliant with Clause 5.6.8 "Base station battery ≥11h" requirement

2. Core Functions (Meeting Clauses 5.5.6/5.5.9)

• Off-network Operation: After disconnection from surface link, still supports calls with MCC570 within coverage (5.5.6)
• Environmental Monitoring: Connects methane/oxygen detectors via LoRa gateway, with real-time data transmission (5.5.9)

Page 7: Core Equipment ③ — MCC570 Mobile Station (Full Compliance)

1. Core Configuration (100% Compliant with MT/T 1129-2011 Clauses 5.6/5.10)

• Explosion-proof and Battery Life:
  • Intrinsically safe type (Ex ib I), intrinsically safe input/output signals (5.10), passing GB 3836.4 testing
  • Battery: 3.7V 8000mAh, continuous operation ≥11h (including 2h calls), compliant with Clause 5.6.7
• Communication and Capacity:
  • Transmission: to RG1100 ≥500m, between mobile stations ≥500m (5.6.1 "recommended ≥500m")
  • Access: system supports ≥18 MCC570 simultaneous registrations, meeting Clause 5.6.2 capacity requirement
• Voice Quality:

Tested with GB/T 16532 speech material, subjective evaluation ≥Grade 3 (5.6.3), no obvious distortion

2. Core Functions (Covering Clauses 5.5.7/5.5.10)

• Off-network Calling: Direct calling between MCC570 units during base station failure (5.5.7)
• Group Call: Supports group calling by rescue crew, meeting Clause 5.5.10 "group call recommended" requirement

Page 8: System Core Features (Anchored to All MT/T 1129-2011 Requirements)

1. Full-Dimension Compliance (Core Differentiating Advantage)

• Technical Specification Compliance: Transmission distance, battery life, capacity, and voice quality fully meet Clause 5.6 requirements, with zero non-compliance
• Explosion-proof and Immunity Compliance: 100% intrinsically safe underground equipment, immunity passing GB/T 17626.3~5 Level 1 tests (5.8)
• Inspection Process Compliance: Factory inspection covers Clause 5.5 functions and Clause 5.6 specifications (7.2); type inspection every 3 years (7.3)

2. Enhanced Field Adaptability (Extended Based on Standard)

• Stable Operation: 7-day continuous power-on with no core function degradation (5.7 operational stability), adapted for prolonged coal mine rescue operations
• Flexible Expansion: Supports repeater and lightning arrester expansion (5.4 system composition), handling complex tunnel environments
• Data Closed Loop: Image/environmental data storage ≥30 days, meeting Clause 5.5.11 "storage function" and post-incident review requirements

Page 9: Compliance and Application Value Summary

1. Compliance Summary (Full Clause Coverage)

Standard Section	Compliance Points	System Implementation
5.4 System Composition	Mobile station + base station + surface terminal + transmission medium	100% match, including repeater/lightning arrester expansion
5.6 Technical Specifications	Transmission/battery life/capacity/voice quality	Full compliance, key parameters exceeding "recommended" requirements
5.8~5.10 Immunity/Reliability/Explosion-proof	Level 1 immunity, MTBF≥800h, intrinsically safe type	Passed third-party testing, explosion-proof certificate obtained
7 Inspection Rules	Factory/type inspection procedures	Standardized inspection system established, reports archived

2. Application Value

• Safety Assurance: Compliant design mitigates the risk of gas explosion caused by non-intrinsically safe equipment; immunity ensures uninterrupted communication in explosive environments
• Efficiency Improvement: 10km field wire + 500m mobile station coverage, expanding rescue range 3x compared to traditional systems; 18 terminal connections support multi-crew coordination
• Long-term Adaptability: Standard type inspection synchronized every 3 years, ensuring the system continuously meets coal mine industry access requirements