CN-121984733-A - Serial port communication conversion device of underwater Christmas tree and underwater Christmas tree

CN121984733ACN 121984733 ACN121984733 ACN 121984733ACN-121984733-A

Abstract

The application discloses a serial port communication conversion device and an underwater Christmas tree, which belong to the technical field of marine oil and gas development, wherein the serial port communication conversion device comprises a processor unit, a first communication unit and a second communication unit, and the processor unit is used for converting first data and second data; the first communication unit is in communication connection with the processor unit, the first communication unit is also in communication connection with the safety controller, the first communication unit is used for transmitting first data between the safety controller and the processor unit, the plurality of second communication units which are isolated from each other are respectively in communication connection with the processor unit, each second communication unit is also in communication connection with the external device, and the second communication unit is used for transmitting second data between the external device and the processor unit. The plurality of second communication units which are mutually isolated are combined with the processor unit and the first communication unit to form a complete communication link, so that the reliability of communication between the safety controller and external equipment is ensured.

Inventors

ZHAO HONGEN
JIANG CHUAN
ZHANG CHENGLONG
Cui Lingjie
XIE JING
KANG BIN
GAO DAN

Assignees

中国船舶集团有限公司第七一一研究所

Dates

Publication Date: 20260505
Application Date: 20260123

Claims (12)

1. The serial port communication conversion device of the underwater Christmas tree is characterized by being in communication connection with external equipment and a safety controller of the underwater Christmas tree; the serial port communication conversion device comprises: a processor unit for performing a conversion between first data for communication of the safety controller of the subsea tree and second data for communication of an external device; The first communication unit is in communication connection with the processor unit, and is also used for being in communication connection with the safety controller, and the first communication unit is used for transmitting the first data between the safety controller and the processor unit; And the plurality of second communication units are isolated from each other, each second communication unit is respectively in communication connection with the processor unit, each second communication unit is also used for being in communication connection with external equipment, and the second communication unit is used for transmitting the second data between the external equipment and the processor unit.
2. The serial port communication conversion device according to claim 1, wherein a plurality of the first communication units are provided, and a plurality of the first communication units are isolated from each other; The processor unit includes a plurality of first communication interfaces, each of which is communicatively coupled to one of the first communication interfaces.
3. The serial port communication conversion device according to claim 2, wherein the first communication unit includes: A first communication transceiver communicatively coupled to the first communication interface; The first interface isolation module is in communication connection with the first communication transceiver, and the first interface isolation module is also used for being in communication connection with the safety controller.
4. The serial port communication conversion device of claim 1, wherein the processor unit includes a plurality of second communication interfaces, each of the second communication units being communicatively coupled to one of the second communication interfaces.
5. The serial port communication conversion device according to claim 4, wherein the second communication unit includes: the optical coupling isolator is in communication connection with the second communication interface; A second communication transceiver communicatively coupled to the optocoupler isolator; The second interface isolation module is in communication connection with the second communication transceiver, and the second interface isolation module is also used for being in communication connection with the external equipment.
6. The serial port communication conversion device according to claim 1, wherein the processor unit includes a third communication interface; The serial port communication conversion device also comprises a pressure monitoring unit, wherein the pressure monitoring unit comprises: the pressure sensor is used for detecting pressure and outputting an analog signal; And the voltage follower is in communication connection with the pressure sensor and the third communication interface and is used for sending the analog signal to the processor unit.
7. The serial communication conversion device according to claim 1, wherein the processor unit includes a fourth communication interface; the serial port communication conversion device further comprises a network communication unit, wherein the network communication unit comprises: the network chip is in communication connection with the fourth communication interface; the network port transformer is electrically connected with the network chip; the network interface is electrically connected with the network port transformer.
8. The serial port communication conversion device according to claim 1, further comprising a power supply unit including: and a first voltage converter for converting a first voltage into a plurality of second voltages isolated from each other to supply electric power to the first communication unit and the second communication unit.
9. The serial port communication conversion device according to claim 8, wherein the power supply unit further comprises: A second voltage converter for converting the second voltage to a third voltage; The power supply monitoring module is electrically connected with the second voltage converter and is used for monitoring a third voltage and carrying out logic reset under the condition that the third voltage is lower than a preset voltage threshold value so as to enable the third voltage to be recovered.
10. The serial port communication conversion device according to claim 1, further comprising a display unit for displaying an operation state of the serial port communication conversion device.
11. The serial port communication conversion device according to claim 1, further comprising a storage expansion unit communicatively coupled to the processor unit, the storage expansion unit configured to store data.
12. A subsea tree, the subsea tree comprising: a safety controller; The serial port communication conversion device according to any one of claims 1 to 11, wherein the serial port communication conversion device is in communication connection with the security controller, and the serial port communication conversion device is further configured to be in communication connection with an external device.

Description

Serial port communication conversion device of underwater Christmas tree and underwater Christmas tree Technical Field The application relates to the technical field of marine oil gas development, in particular to a serial port communication conversion device of an underwater Christmas tree and the underwater Christmas tree. Background Subsea trees are the core equipment for offshore oil and gas development for controlling the transfer of oil and gas between the oil and gas and external equipment on a subsea wellhead. The safety controller of the subsea tree is used for providing safety protection for the equipment during conditions such as start-up, stop, process disturbance and normal maintenance operation of the external equipment, and in case of danger of the external equipment, the safety controller can immediately react and output a correct signal so that the external equipment is in a safe state or stopped. The security controller is different from the external device in data protocol, so that the security controller needs to convert data through the serial communication conversion device when communicating with the external device. In the related technology, because the underwater Christmas tree operates in an underwater environment, the working condition is complex, the reliability of communication between the safety controller and external equipment is poor, and the operation safety of the underwater Christmas tree is difficult to ensure. Disclosure of Invention The embodiment of the application provides a serial port communication conversion device of an underwater Christmas tree and the underwater Christmas tree, which are used for solving the problems that the reliability of communication between a safety controller and external equipment is poor and the operation safety of the underwater Christmas tree is difficult to ensure. In a first aspect, an embodiment of the present application provides a serial communication conversion device of an underwater christmas tree, where the serial communication conversion device is communicatively connected with an external device and a safety controller of the underwater christmas tree; The serial port communication conversion device comprises: A processor unit for performing a conversion between first data for communication of the safety controller of the subsea tree and second data for communication of the external device; the first communication unit is in communication connection with the processor unit, and is also used for being in communication connection with the safety controller, and the first communication unit is used for transmitting first data between the safety controller and the processor unit; and the plurality of second communication units are isolated from each other, each second communication unit is respectively in communication connection with the processor unit, each second communication unit is also used for being in communication connection with the external equipment, and the second communication units are used for transmitting second data between the external equipment and the processor unit. In some embodiments, the first communication unit has a plurality of first communication units, and the plurality of first communication units are isolated from each other; The processor unit includes a plurality of first communication interfaces, each first communication unit being communicatively coupled to one of the first communication interfaces. In some embodiments, the first communication unit comprises: A first communication transceiver communicatively coupled to the first communication interface; The first interface isolation module is in communication connection with the first communication transceiver and is also used for being in communication connection with the safety controller. In some embodiments, the processor unit includes a plurality of second communication interfaces, each second communication unit being communicatively coupled to one of the second communication interfaces. In some embodiments, the second communication unit comprises: the optical coupling isolator is in communication connection with the second communication interface; The second communication transceiver is in communication connection with the optical coupling isolator; the second interface isolation module is in communication connection with the second communication transceiver and is also used for being in communication connection with external equipment. In some embodiments, the processor unit includes a third communication interface; the serial port communication conversion device also comprises a pressure monitoring unit, wherein the pressure monitoring unit comprises: the pressure sensor is used for detecting pressure and outputting an analog signal; And the voltage follower is in communication connection with the pressure sensor and the third communication interface and is used for sending the analog signal to the processor unit. In some embodiment