基本上，有线电视是一种资本密集的产业，主要支出则包括硬件传输的各种设备以及每个月的频道购买成本。
Basically, it is realized that cable TV is a capital-intensive industry, which has to be maintained under the huge cost of transmission hardware and program channels.
硬件上主要包括：轨迹运动控制部件、脉冲电源控制部件、主控部件三个部分。
Hardware mainly includes: track movement control components, pulse power control components, main control components.
硬件上详细给出了系统主要功能模块的工作原理和设计内容，包括模拟信号输入电路、数字信号输入输出电路、看门狗及系统复位电路等。
On the hardware design we provide the operation principle of the main function module and design content in detail, including Analog Inputting, Digital Inputting and Outputting, Watchdog, etc.
硬件上详细给出了系统主要功能模块的工作原理和设计内容，包括模拟信号输入电路、数字信号输入输出电路、看门狗及系统复位电路等。
On the hardware design we provide the operation principle of the main function module and design content in detail, including Analog Inputting, Digital Inputting and Outputting, Watchdog, etc.
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