Deep-sea in-situ observation station acquisition control circuit

The utility model relates to a deep-sea in-situ observation station acquisition control circuit. The deep-sea in-situ observation station acquisition control circuit of the utility model comprises a power source circuit, a clock circuit, a relay circuit, an analog signal acquisition circuit, an SD circuit, a serial interface circuit, a main control circuit and a main control chip-attached reset circuit; the main control chip controls the relay circuit and makes the same powered on, and awaits sensor data and samples the data, acquires clock information of a clock chip and stores the data and information in an SD card according to data formats; and data sampling interval and data transmission interval information is stored in configuration files in the SD card. According to the deep-sea in-situ observation station acquisition control circuit of the utility model, a precise timing technology, a micro-power consumption technology, a large capacity storage technology and a reliable processing technology are utilized comprehensively. With the deep-sea in-situ observation station acquisition control circuit of the utility model adopted, power source control on sensors with different interfaces such as RS232, RS485 and analog voltage interfaces, as well as timed acquisition, storage and transmission of sensing data can be provided. The deep-sea in-situ observation station acquisition control circuit can acquire battery voltage in a timed manner, such that the normal operation of a whole deep-sea in-situ observation station can be maintained.