Multifunctional USB interface detection circuit

A multifunctional universal serial bus (USB) interface detection circuit, comprising:

• a microcontroller unit (MCU) based main controller, a power supply management circuit, a data signal detector, a power supply signal detector, a wireless transmission circuit, and a human-computer interactor;
• wherein the power supply management circuit is configured to provide power to the MCU based main controller;
• the MCU based main controller is configured to control, analyze and process information;
• the data signal detector is configured to detect data signal information;
• the power supply signal detector is configured to detect power supply signal information;
• the wireless transmission circuit is configured to transmit the information;
• and the human-computer interactor is configured to control human-computer interaction information;
• wherein the data detector comprises a cyclic redundancy check (CRC) circuit, a data delay detector, and a signal rise and fall time detector;
• the CRC circuit is configured to detect integrity of a data signal;
• the data delay detector is configured to detect delay time of the data signal during transmission, and the signal rise and fall time detector is configured to detect synchronous extraction and anti-interference performance of the data signal;
• and
• wherein the MCU based main controller is further configured to respectively control the data signal detector, the power supply signal detector, the wireless transmission circuit and the human-computer interactor;
• and the MCU based main controller is further configured to control the CRC circuit, the data delay detector and the signal rise and fall time detector respectively through the data signal detector.