introduction

Since the 1990s, digital technology has achieved rapid development. Early programmable controllers are called programmable logic controllers (Programmable Logic Controller, PLC), which are mainly used to replace relays to achieve logic control. Wit…

Conditional Access System (CAS) is the core technology for pay TV. It is very important to understand its operation mechanism and master its use and maintenance for the successful development of pay TV service.

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Abstract: STC12C2A60S2 single-chip microcomputer is used as the control core. In the case of stolen vehicles, the GPS satellite positioning system is used to determine the position of the vehicle, and then the vehicle king is sent to the designated mobile phone by…

According to the comprehensive data of the State Council Working Committee on Women and Children, accidental injuries in the family have become the leading cause of child injury and disability. During the Spring Festival holiday, parents may wish to check whether there are any hidden dangers in…

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