CausalPulse: An Industrial-Grade Neurosymbolic Multi-Agent Copilot for Causal Diagnostics in Smart Manufacturing

Abstract

Modern manufacturing environments demand real-time, trustworthy, and interpretable root-cause insights to sustain productivity and quality. Traditional analytics pipelines often treat anomaly detection, causal inference, and root-cause analysis as isolated stages, limiting scalability and explainability. In this work, we present CausalPulse, an industry-grade multi-agent copilot that automates causal diagnostics in smart manufacturing. It unifies anomaly detection, causal discovery, and reasoning through a neurosymbolic architecture built on standardized agentic protocols. CausalPulse is being deployed in a Robert Bosch manufacturing plant, integrating seamlessly with existing monitoring workflows and supporting real-time operation at production scale. Evaluations on both public (Future Factories) and proprietary (Planar Sensor Element) datasets show high reliability, achieving overall success rates of 98.0% and 98.73%. Per-criterion success rates reached 98.75% for planning and tool use, 97.3% for self-reflection, and 99.2% for collaboration. Runtime experiments report end-to-end latency of 50-60s per diagnostic workflow with near-linear scalability (R^2=0.97), confirming real-time readiness. Comparison with existing industrial copilots highlights distinct advantages in modularity, extensibility, and deployment maturity. These results demonstrate how CausalPulse's modular, human-in-the-loop design enables reliable, interpretable, and production-ready automation for next-generation manufacturing.

Figures (8)

• Figure 1: High-level overview of CausalPulse system architecture and components.
• Figure 2: CausalPulse four-layer framework: user-facing, agent, utility, and data, connected through standardized protocols (MCP, A2A, and LangGraph).
• Figure 3: Illustration of domain-specific rules for a grinding process. Control parameters (rectangles) may cause observation parameters (circles) at the same or later grinding stage (Rules R1, R2, R5), observation parameters may only cause later observations (Rules R3, R4), and edges violating type or temporal order are explicitly disallowed (dashed red arrows).
• Figure 4: Agentic task orchestration and workflow execution in CausalPulse: (a) Query interpretation and planning by the LangGraph-based workflow engine, (b-I) Agent card registration and central server coordination, (b-II) Agent interactions and data flow during execution, and (b-III) Postprocess chaining with the Recommender Agent.
• Figure 5: Root cause analysis results: (a) ranked root-cause paths ordered by causal significance for the anomaly in E_8 in the PSE dataset (refer to "Datasets Descriptions" Section), and (b) visual representation of the corresponding causal graph, highlighting identified root causes and propagation paths. The legend on the right lists variable names and their hierarchical levels, where levels represent the sequential order of grinding steps in the PSE use case.