Data protection-based vehicle-mounted multimedia low-power sleep apparatus and method

• Main Authors: CAI YANPING, CAI YUNWEN, XIAO ZHENLONG, CHEN RUTAO, YANG FENG
• Format: Patent
• Language: Chinese; English
• Published: 13.06.2017
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

The invention discloses a data protection-based vehicle-mounted multimedia low-power sleep apparatus. The apparatus is connected with a vehicle battery power supply and an ACC power supply, and comprises a vehicle-mounted multimedia power supply system, a CPU and a sleep control circuit, wherein the sleep control circuit comprises an MOS transistor, a triode, a first optical coupler and a second optical coupler; the vehicle battery power supply is connected with the source of the MOS transistor; the ACC power supply is connected with the positive electrodes of the primary sides of the first and second optical couplers; the collector of the secondary side of the first optical coupler is connected with the gate of the MOS transistor and the collector of the triode; the base of the triode is connected with the signal output end of the CPU; and the collector of the secondary side of the second optical coupler is connected with the signal input end of the CPU. According to the apparatus, the requirement on low pow