GA/T 2103.3-2023
Easy-to-make gun item graphic comparison application Part 3: Interface specifications (English Version)

Standard No.

GA/T 2103.3-2023

Language

Chinese, Available in English version

Release Date

2023

Published By

Professional Standard - Public Safety Standards

Latest

GA/T 2103.3-2023

Introduction

Technical background of the standard

As the third part of the GA/T 2103 series, this standard focuses on solving the data standardization problem of the graphic comparison system for easy-to-make guns when the modules are interconnected. According to the data from the Public Security Bureau of the Ministry of Public Security, the number of gun-related cases in the country increased by 12.7% year-on-year in 2022. The implementation of this standard will improve the efficiency of cross-system collaborative identification by more than 40%.

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Core Interface Architecture

Interface Type	Transmission Protocol	Typical Latency	Data Size
Edge Computing Interface	HTTP/HTTPS	≤200ms	10-100KB/time
Cascade Interface	RESTful API	≤500ms	1-10MB/time
Data Service Interface	JSON/XML	≤1s	50-500MB/day

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Key technical requirements

Data object specifications

Appendix A of the standard defines 12 types of data objects in detail, among which the matching event object must contain the following fields:

• UUID (in compliance with RFC 4122)
• Timestamp (ISO 8601 format)
• Confidence level (0.00-1.00 range)

Coding rules

A three-level coding system is adopted: Administrative division code (GB/T 2260) + Institution code (GA/T 380) + serial number (UUID) to ensure unique identification across the country.

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Implementation recommendations

Typical deployment scenarios

Take a pilot project of a provincial public security department as an example:

1. Deploy edge computing nodes at the airport security checkpoint
2. Connect to the provincial video cloud platform through the cascade interface
3. Use the data service interface to aggregate data to the ministerial platform

Practice shows that the system reduces the response time for identifying gun-related items from an average of 5 minutes for manual verification to less than 8 seconds.

Compatibility Notes

Pay special attention to coordination with the following standards:

• GB/T 28181-2022 Video Networking Standard
• GA/T 1400.4 Interface Protocol Requirements
• GA/T 2000.345 Article Type Code