Chapter 5: Selection & Interfaces

Core product selection guide, interface logic diagrams, and product function comparison tables

5.1 Core Product Selection

Product selection for LPR/ANPR systems must be driven by scenario requirements, not by price alone. The selection process follows a structured evaluation framework that scores candidate products against weighted criteria including recognition accuracy, environmental rating, interface compatibility, vendor support quality, and total cost of ownership. The following product showcase presents the core product categories and their key differentiators.

Figure 5.1: LPR/ANPR core product showcase — camera, illuminator, trigger, and edge compute categories

5.2 Interface Logic and Wiring

The interface logic diagram defines the electrical and logical connections between all system components. Understanding interface compatibility is critical for avoiding integration failures during installation. The diagram covers power interfaces (PoE, 12VDC, 24VAC), signal interfaces (RS-485, relay, GPIO), and communication interfaces (Ethernet, RS-232, USB).

Figure 5.2: LPR system interface logic diagram — electrical connections, signal interfaces, and communication protocols

5.3 Core Product Function Comparison Table

The following table provides a comprehensive comparison of core product specifications across the key performance dimensions. Use this table in conjunction with the scenario selection matrix (Chapter 3) to identify the appropriate product tier for your deployment.

5.4 Interface Compatibility Matrix

Before finalizing product selection, verify interface compatibility between all system components. Incompatible interfaces are the most common cause of integration failures and project delays. The matrix below identifies the critical interface compatibility requirements for each component pair.