GB/T 37537-2019 in English

Standard framework and technological evolution

As a supporting standard for GB/T 26557-2011 "Construction elevators for both passengers and cargo with vertically guided cages", this standard has established for the first time a safety monitoring technology system covering the entire life cycle of construction elevators. Compared with GB/T 28264-2017 "Safety Monitoring and Management System for Lifting Machinery", technological breakthroughs are achieved in the following aspects:

Analysis of core technical requirements

4.1 System architecture requirements

The system should adopt a modular design, including 9 major functional units:

1. Information acquisition unit: It needs to be configured with height/speed/weight sensors, with a comprehensive error of ≤2%
2. Alarm unit: Secondary early warning mechanism (load 0.95G triggers yellow light, 1.1G triggers red light shutdown)
3. Remote transmission unit: Supports TCP/IP protocol, with a transmission interval of ≤15s

4.13 Key performance indicators

Implementation points and case analysis

Typical application scenarios

Case: Renovation of the monitoring system of SC200/200 construction elevator at a construction site:

• Configure WSN-300 weight sensor (accuracy 0.5%)
• Use LoRa wireless transmission module (transmission distance 150m)
• Connect to provincial supervision platform through Appendix A protocol

Frequently Asked Questions

According to clause 7.4.4, the following situations require re-debugging:

1. Error exceeds standard after system component replacement
2. Elevator installation height changes by more than 10%
3. Data deviation is found during quarterly inspection

Communication protocol technical specifications

Appendix A specifies a strict communication frame structure:

 Frame structure: [0xA55A][Length][Version][Time][Type][Device ID][Information segment][Checksum][0xC33C] Key frame type: 0x10 - Real-time data (including 33 bytes of data such as load/height/speed) 0x12 - Working cycle record (34 bytes including start and end time, maximum load) 

Data security requirements

• Use a 6-digit password to protect parameter modification permissions (Clause 4.11)
• Startup is prohibited if operator identification fails (Clause 4.12)
• Insulation resistance ≥ 5MΩ (Clause 4.15.2)