In the field of industrial automation, the core board serves as the “brain” of embedded systems, and its selection directly impacts product performance, cost, and reliability. How can one choose the most suitable option from a vast array of solutions? Han Chuan Technology guides you from a professional perspective, outlining seven core evaluation dimensions to assist you in making precise decisions.
1. Processor: Balancing Performance and Power Consumption
The architecture and performance of the processor are the primary considerations in core board selection. Currently, ARM architecture has become the preferred choice in the industrial control field due to its high performance, low power consumption, modular design, and rich software ecosystem. Key parameters such as clock frequency, core count, and cache should be closely monitored, and the appropriate level of computing power should be selected based on actual application scenarios (e.g., real-time control, edge computing).
2. Operating System: The Trade-off Between Software Ecosystem and Real-time Performance
The operating system directly affects development efficiency and the realization of product functions. Linux is suitable for complex logic and network communication scenarios but has a slower boot speed; RTOS (Real-Time Operating System) can meet millisecond-level response requirements but has limited ecosystem resources. When selecting, it is necessary to weigh software compatibility, boot speed, security and real-time requirements to avoid a surge in development costs later on.
3. Peripheral Interfaces: Dual Verification of Expandability and Compatibility
The interface parameters of the core board (such as GPIO, USB, CAN, Ethernet, etc.) must be highly compatible with the requirements of the target device. Two points to note:
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Chip Pin Multiplexing Issues: The number of interfaces indicated in the parameter table is the theoretical maximum, and actual usage may be limited due to functional conflicts;
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Expansion Costs: When interfaces are insufficient, the feasibility and cost of expansion modules need to be evaluated to avoid “invisible overspending” in the solution.
4. Overall Cost: BOM Cost is Just the Tip of the Iceberg
The unit price of the core board does not equal the total cost! A comprehensive calculation is required:
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BOM Cost: Includes hardware costs for the core board, peripheral modules, power management, etc.;
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Hidden Costs: Such as software development cycles, technical support, and after-sales response efficiency. Choosing a mature solution can significantly reduce debugging risks and shorten time to market.
5. Stability: The Lifeline in Industrial Scenarios
Industrial control devices must adapt to extreme environments, and the core board must undergo rigorous testing. Key points to focus on include whether the supplier provides:
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High and Low-Temperature Test Reports (with -40℃ to 85℃ being the industrial standard);
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Interference Resistance Testing (such as EMC and vibration testing);
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Long-term Aging Test Data, ensuring that the fault-free operating time meets standards.
6. Compliance: Hard Thresholds for Export and Certification
If the product is aimed at the global market, ROHS (Restriction of Hazardous Substances), REACH (Registration, Evaluation, Authorisation and Restriction of Chemicals) certifications are basic thresholds. Some industries also need to meet IEC safety standards, CE/FCC electromagnetic compatibility certifications. It is essential to require suppliers to provide compliance documents during selection to avoid subsequent rectification losses.
7. Supplier Reputation: The Value of a Technical Partner Exceeds Transactions
A quality supplier should possess:
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Independent R&D Capabilities (patents, strength of software and hardware teams);
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Quality Control and Delivery Assurance (such as full-process production workshops, strict quality inspections);
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In-depth Technical Services (full-cycle collaboration from selection support to fault diagnosis).
The selection of industrial control core boards is a complex balance of technology, cost, and risk. From processor performance to supplier reputation, every aspect requires strict verification. Rather than blindly pursuing parameters, it is better to aim for “optimal overall cost” and choose solutions that are technically mature and service reliable. As demonstrated by Han Chuan Technology’s practice, a quality core board is not just a hardware module, but the cornerstone of product success. With patented technology, a complete production chain, and rapid response capabilities, it has become a long-term partner for many enterprises.