Clock calibration circuit and automatic driving equipment

• Main Authors: CUI JIANBO, CHANG YUFEI
• Format: Patent
• Language: Chinese; English
• Published: 31.05.2024
• Subjects: CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; MULTIPLEX COMMUNICATION; PERFORMING OPERATIONS; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT; TRANSPORTING; VEHICLES IN GENERAL

The embodiment of the utility model discloses a clock calibration circuit and automatic driving equipment. The circuit comprises a TCXO crystal oscillator module used for providing calibration clock pulses; the RTC crystal oscillator module is used for providing a local clock pulse; the GPS navigation module is used for outputting a second pulse signal and a time message signal; the main control module analyzes the second pulse signal and the time message signal to obtain network time, and calibrates the network time according to the local clock pulse and the calibration clock pulse to obtain real-time time; and the output end of the TCXO crystal oscillator module, the output end of the RTC crystal oscillator module and the output end of the GPS navigation module are respectively connected to corresponding signal input ends of the main control module. Through the above mode, the TCXO crystal oscillator module and the RTC crystal oscillator module are combined in the embodiment of the utility model to calibrat