Telephone online detection device and method based on FPGA, controller and storage medium

• Main Authors: ZHONG YOUPING, CHEN GANG, WU LIHONG, QIN XIAOFEI, WEI HAILIANG, LI PENGFEI
• Format: Patent
• Language: Chinese; English
• Published: 15.08.2023
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TELEPHONIC COMMUNICATION

The invention discloses a telephone online detection device and method based on an FPGA, a controller and a computer storage medium, the device comprises a user interface circuit unit and an FPGA processing unit, and the FPGA processing unit is used for obtaining an SHK signal through the user interface circuit unit and sending a test digital signal to the user interface circuit unit; the user interface circuit unit is used for converting the test digital signal into an analog signal and converting the analog signal into a feedback digital signal through a reverse operational amplifier circuit, a telephone line interface and an addition and subtraction operational amplifier circuit; and the FPGA processing unit is used for determining whether a telephone is connected to a telephone line corresponding to the telephone line interface, so that the online detection function can be realized without additional circuits and equipment, the equipment cost is reduced, and meanwhile, the online detection device can be u