KingHistorian
Industrial Time-Series Historian
Know the Past for Intelligent Futures
Trusted in Energy & Utilities Oil & Gas Manufacturing Water Treatment Pharmaceuticals Smart Buildings
KingHistorian
KingHistorian is a real-time industrial database system (built by WellinTech) designed to collect, compress, store and analyze massive industrial data with high performance, reliability and open interfaces for integration with MES/MOM/ERP/WMS and other systems.
KingHistorian ingests, compresses, and serves millions of industrial data points per second — built for SCADA, IIoT, and process control environments where reliability isn't optional.
The Problem
Industrial data is unlike any other data.
Process control environments generate hundreds to thousands of gigabytes per day — high-frequency, timestamped, and mission-critical. Standard databases weren't designed for this reality.
⚠ Relational Databases
Write performance collapses at scale. No awareness of dead-band, exception reporting, or industrial compression semantics. No native support for OPC, SCADA, or PLC protocols. Query latency grows with table size over time.
KingHistorian
Purpose-built for process control.
Native Industrial Collection
OPC, IOServer collectors, and 6,000+ device drivers from 1,600+ vendors
Industrial Compression Algorithms
Rotary-gate, spike-deadband, change (delta), and on-the-hour compression — built for sensor data, not metrics.
Full-Lifecycle Data Integrity
Multi-level caching, redundancy, store-and-forward, and rigorous fault-recovery mechanism protect every record.
Six pillars of industrial-grade performance.
Core Capabilities
From collection to compression to querying and security — every layer is purpose-built for the demands of industrial operations.
Data Acquisition
Connect directly to PLCs, SCADA systems, DCS networks, and IIoT sensors using native industrial protocols with configurable polling and event-driven modes.
Smart Compression
Swinging Door and Exception reporting algorithms reduce storage footprint by up to 40x with configurable lossless or lossy modes. Preserve every meaningful change.
High-Speed Querying
Sub-millisecond historical queries across millions of tags. Built-in interpolation, aggregation (avg, min, max, std), and time-weighted averages return the right value every time.
Open Connectivity
Expose your historian data to any application via REST, ODBC, JDBC, , or our native SDKs for Python, .NET, and Java. Zero vendor lock-in.
Security &Compliance
Role-based access control, full audit trails, TLS encryption in transit, AES-256 at rest. Meets IEC 62443 and NERC CIP compliance requirements out of the box.
High Availability
Active-passive and active-active replication, automatic failover, and store-and-forward buffering ensure zero data loss even during network outages or server failures.
Technical highlights & typical performance
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Supported equipment: broad device support — more than 1,600 manufacturers and 6,000 kinds of drivers
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Single server capacity: supports 8 million data points and can retain those data for >10 years
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Throughput: brochure lists storage capability of 3 million items/second and high-speed reading of 5 million items/second
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Query performance: a single client/node can query 6 million items/second; concurrent queries by 5,000 clients are supported
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Real-time vs historical separation: supports separation of real-time and historical databases — e.g., 10 million points real-time query and 800,000 pieces/second historical query
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Compression: multi-level compression (change compression, dead-zone, revolving-door, integral-point compression, etc.);
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APIs & protocols: MQTT, WebService, RESTful API, ODBC/JDBC/OLEDB, standard OPC DA & HDA, and more than 150 API functions
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KingSCADA/KingView/other WellinTech platforms can act as a client seamlessly connected to the industrial real-time database.
WellinTech is a leading industrial automation and information solutions provider.
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