CN108512717A - A kind of submarine observation network master base station underwater in-situ test system and method - Google Patents

Abstract

The invention discloses an underwater in-situ test system and method for a main base station of a submarine observation network. The system includes: a control subsystem and an adjustable load; the control subsystem is used to receive instructions and data sent by the shore base station, and to The submarine observation network system performs the data link status and timing function test; and receives the command to adjust the load size sent by the shore base station, adjusts the parameters of the adjustable load and sends the collected system status information to the shore base station; the adjustable load sub The system is used to receive instructions for adjusting the load size sent by the shore base station, and to simulate the observation equipment of different load characteristics connected to the connection port of the main base station; the invention also discloses an underwater in-situ test method based on the system. The invention can simulate the working status and data link status of the main base station under different loads, improve the test efficiency of the main base station, solve the problem that the main base station of the current observation network system cannot be tested in real time after it is launched, and provide observation equipment access and system expansion. Accurate basis.

Description

Underwater in-situ test system and method for main base station of submarine observation network

technical field

The invention relates to the technical field of deep-sea observation, in particular to an underwater in-situ testing system and method for a main base station of a submarine observation network.

Background technique

The submarine observation network is composed of shore base stations, power supply and communication equipment, submarine cables, submarine main base stations, scientific observation equipment, etc. It is used to implement large-scale, all-weather, real-time and long-term continuous observation of the interior of the ocean, with the purpose of fundamentally refreshing human understanding The traditional concept of observing and observing the ocean can bring revolutionary changes to my country's exploration of the ocean, and at the same time serve related research on national ocean security, deep-sea energy and resource development, marine environment monitoring, and disaster warning and forecasting.

The main submarine base station is the connection equipment used to connect the submarine cable and scientific observation equipment in the submarine observation network. It is the connection hub for power supply, data transmission and communication control. The main functions are:

1. Realize the conversion of electric energy from high voltage to medium and low voltage, and provide uninterrupted electric energy for scientific observation equipment;

2. Realize the aggregation and transmission of data collected by scientific observation equipment;

3. Realize the real-time monitoring and timing operation of the shore base station to the main base station and scientific observation equipment.

The subsea main base station test is divided into two parts: shore test and subsea test. The test content includes:

1. Power output test, used to test whether the output voltage, output power, output switch control and other states of the connection port are normal;

2. Communication function test, used to test whether the data link transmission status is normal;

3. Load test, used to test whether the adaptability of the main base station and the fast isolation ability are normal when the load changes or fails;

4. Clock test, used to test whether the clock synchronization function is normal.

The prior art testing process is as follows:

The first stage of on-shore testing: Before the main base station is packaged, it is necessary to use general test equipment for functional and performance testing. After packaging, there are two methods for testing: the first is to connect the test cable to the cavity and then pass the above general test equipment Conduct functional tests; the second is to conduct performance tests in operation by connecting scientific observation equipment.

In the second stage of the subsea test, the underwater robot (ROV) was used to connect the scientific observation equipment to the main base station through the wet plug connection port, and then directly conduct the operation test.

During the construction of the submarine observation network, the main base station and the scientific observation equipment are deployed separately. The main base station is deployed first, and then the main base station is deployed after the backbone of the entire submarine observation network (shore base station-submarine cable-main base station) is connected and working normally. Related scientific observation equipment. When deploying scientific observation equipment, how to judge whether it can work normally after being connected to the connecting port of the main base station has become a technical problem. In the existing technology, only after the ROV connects the scientific observation equipment to the main base station through the wet-plug connection port Verify whether the relevant functions are normal, which adds great uncertainty to the construction of the entire system of the submarine observation network, especially the deployment of later scientific observation instruments. In addition, once the connected scientific observation equipment fails to work normally, the staff cannot determine whether the failure occurred at the connection port of the main base station or the scientific observation equipment itself. This problem will not only delay the progress of offshore construction, but also greatly increase the costs and risks.

The Chinese patent "Diagnostic System for Submarine Observation Network Nodes" with the application number of 201210008142.3 discloses a fault diagnosis system for submarine observation network nodes, which mainly includes: 1) the energy source used to monitor the operating status of the energy supply module in the submarine observation network nodes Fault diagnosis subsystem; 2) The internal fault diagnosis subsystem of the node cabin used to monitor the operating status of the internal sensors of the submarine observation network node; 3) The external fault diagnosis of the node cabin used to monitor the operating status of the external sensors and equipment of the submarine observation network node Subsystem; 4) The node main control circuit board used for fault signal acquisition and processing; 5) The shore station used for remote monitoring of the operation status of the seabed observation network nodes and data management. Among them, the main control circuit board of the node is connected with the energy fault diagnosis subsystem, the internal fault diagnosis subsystem of the node cabin and the external fault diagnosis subsystem of the node cabin. communication, and diagnose system faults at any time.

Although the above-mentioned patent "submarine observation network node fault diagnosis system" also designed the internal fault diagnosis subsystem of the node cabin and the external fault diagnosis subsystem of the node cabin, it is mainly for the internal fault of the node and the connection port when the external observation equipment is connected. The monitoring of voltage and current only has the power monitoring function after the scientific observation equipment is connected, so its system diagnosis function is not perfect. The present invention can well monitor the simulated on-load operation status of the main base station during the period from the deployment of the main base station to the deployment of the scientific observation equipment, so as to achieve the purpose of real-time grasp of the performance and status of the connection port of the main base station. The access provides a reliable guarantee, and the patented "bottom observation network node fault diagnosis system" cannot play the role of the present invention.

In addition, after the optical communication link design of the entire submarine observation network is completed and put into use, the quality and reliability of optical communication will decrease with the increase of working hours and the occurrence of problems such as line maintenance. The underwater in-situ test equipment proposed by the present invention has the ability to test optical signal attenuation, can detect the attenuation margin of the current optical communication network in real time, and provide reference for later maintenance and system expansion, and the patent "seabed observation network node fault diagnosis system" Can't play the effect of the present invention.

In addition, the cavity of the main base station adopts a pressure-resistant sealing design, and only the wet plug connection port is left after sealing. The existing technology is mainly to use electronic loads, oscilloscopes, network analyzers, time synchronization analyzers and other general test equipment for testing and functional verification before the cavity is packaged; after the cavity is packaged, only the test cables and cavity Especially before deploying the main base station at sea, there is no effective means to judge whether the connection function of the main base station is normal. Only by connecting real scientific observation equipment can an indirect judgment be made, and the necessary auxiliary base station is lacking. Test Equipment.

Contents of the invention

The invention solves the problem that the main base station of the existing submarine observation network cannot be tested and detected in real time after the underwater deployment. The underwater in-situ test system proposed by the invention integrates the communication circuit and the power circuit. After connecting to the main base station, it can directly detect the carrying capacity of the main base station under different communication rates and output power conditions, and at the same time provide the main base station connection fault location function. The invention solves the problem that the optical transmission performance cannot be detected during the long-term operation of the existing seabed observation network. The underwater in-situ test system proposed by the present invention can simulate optical fiber aging and optical signal attenuation caused by submarine cable maintenance, and provide judgment basis for the shore base station to evaluate the optical transmission reliability of the backbone line of the submarine observation network, and then provide a basis for later submarine cable maintenance and system Extensions provide references. The invention solves the problem that electronic loads, oscilloscopes, network analyzers and other general-purpose testing equipment need to be used for the function test of the main base station of the traditional submarine observation network. Efficiently and quickly complete the connection function test of the main base station.

In order to achieve the above object, the present invention provides an underwater in-situ test system for the main base station of the submarine observation network, the system is connected to the main base station through a connection port, and the system includes: a control subsystem and an adjustable load;

The control subsystem is used to receive instructions and data sent by the shore base station through the main base station, and to test the data link status and timing function of the entire submarine observation network system; and receive the adjustment load size sent by the shore base station through the main base station Instructions to adjust the parameters of the adjustable load; and send the collected system status information to the shore base station through the main base station;

The adjustable load is used to receive an instruction to adjust the load size sent by the shore base station through the main base station and the control subsystem, and to simulate the observation equipment of different load characteristics connected to the connection port of the main base station.

As an improvement of the above system, the system further includes: a medium and low voltage conversion module, which is used to convert the direct current medium voltage transmitted from the main base station through the connection port into low voltage power for supplying power to the control subsystem.

As an improvement of the above system, the control subsystem includes: a switch, a microcontroller, an optical signal conditioner, a time resolver and a power monitoring circuit;

The switch is configured to implement data exchange between the system and the main base station;

The microcontroller is used to send the information monitored by the power supply monitoring circuit to the main base station and the shore base station; receive the light attenuation adjustment instruction sent by the shore base station through the main base station, and set the optical signal conditioner; receive the shore base station through the main base station The command to adjust the load size sent by the base station is used to set the adjustable load;

The optical signal conditioner is used to attenuate the optical signal transmitted by the shore base station, and the optical signal is then sent back to the shore base station through the switch and the main base station to detect the performance of the data link and verify the attenuation margin of the optical transmission line. size;

The time parser is used to receive and parse the time data packet sent by the shore base station through the main base station, parse out the time information, and serve time for the microcontroller; and send the parsed result to the microcontroller, and the microcontroller passes the parsed result through The main base station sends to the shore base station to provide analysis data for the shore base station to evaluate the clock synchronization effect;

The power supply monitoring circuit is used to monitor the voltage and current status of the connection port and transmit them to the microcontroller.

As an improvement of the above system, the control subsystem package also includes a temperature and humidity sensor and a water leakage detection sensor, which are used to monitor the internal environment state of the system, and send the system's environment state information to the main base station through the microcontroller and the switch. Shore base station.

As an improvement of the above system, the microcontroller is the control core of the entire system, including: Ethernet and serial communication circuits; the microcontroller is connected to the switch through Ethernet; The interface is connected with the power supply monitoring circuit, the temperature and humidity sensor, and the water leakage monitoring sensor; the microcontroller is respectively connected with the adjustable load and the optical signal regulator through the IO port.

As an improvement of the above system, the shore base station sends the attenuation control command to the main base station through the submarine cable, and the main base station forwards it to the switch of the control subsystem, and the switch sends the attenuation control command to the microcontroller. The controller sets the attenuation parameters of the optical signal conditioner according to the received command, and then feeds back the setting success information to the shore base station along the reverse path; the test data sent by the shore base station is attenuated by the optical signal conditioner and then follows the reverse path It is sent back to the shore base station, and the shore base station compares it with the test data originally sent to obtain the data bit error rate information, thereby obtaining the current data link status and optical transmission line attenuation margin information.

As an improvement of the above system, the power monitoring circuit includes: a voltage sensor U1, an operational amplifier U2 and a microcontroller U3, the voltage sensor U1 is powered by +5V, and U+ and U- are respectively connected to both ends of the sampling resistor R1, The output pin Uz is connected to one end of the resistor R2, and the other end of R2 is connected to the capacitor C1 and the third pin of U2. The operational amplifier U2 is powered by +5V, and the fourth pin of the operational amplifier U2 is connected to the first pin to realize short circuit. The design As a follower, the first pin of the operational amplifier U2 is connected with the Zener diode Z1 and the ADC input pin of the microcontroller.

A method for underwater in-situ testing of the main base station of the submarine observation network based on the above-mentioned system, the method comprising:

Step 1) Before the main base station is ready to be deployed in the sea on the construction ship, connect the underwater in-situ test system to the connection port of the main base station through the wet plug interface and fix it to the main frame of the main base station;

Step 2) Use the power supply provided by the construction ship to supply power to the main base station, and use the test cable to connect the main base station with the host computer of the main base station; the host computer of the main base station controls the main base station to open the connection port, and the underwater in-situ test system starts to work. The current power status of the connection port is fed back to the host computer of the main base station through the main base station; the host computer monitors the working status of the connection port in real time and sends test data, and verifies whether the communication function between the main base station and the underwater in-situ test equipment is normal by receiving the returned data ;

Step 3) After the connection function of the main base station is verified to be normal, the main base station and the underwater in-situ test system are deployed on the seabed of the corresponding sea area at the same time;

Step 4) After the construction of the backbone network of the submarine observation network is completed, the shore base station is responsible for communicating with the main base station and the underwater in-situ test system, and receives the connection status information uploaded by the underwater in-situ test system in real time;

Step 5) According to the specific load characteristics of the access equipment, the shore base station sends the corresponding load adjustment command to the underwater in-situ test system, simulates the scientific observation equipment to be connected, and sends communication test data, and the shore base station passes the returned connection port Power supply status and test data determine whether the equipment can be connected normally; if the status is all normal, the construction ship controls the ROV to unplug the underwater in-situ test system from the main base station connection port, and connect the scientific observation equipment to the connection port superior.

As an improvement of the above method, if the current seabed observation network communication network needs to be tested, the method also includes:

Step 6) The shore base station sends the attenuation control command to the main base station through the submarine cable, and the main base station forwards it to the switch of the control subsystem, and the switch sends the attenuation control command to the microcontroller, and the microcontroller receives the attenuation control command according to the command to set the attenuation parameters of the optical signal conditioner, and then feed back the setting success information to the shore base station along the reverse path; the test data sent by the shore base station is attenuated by the optical signal conditioner and then sent back to the shore base station along the reverse path , the shore base station compares it with the test data originally sent to obtain the data bit error rate information, thereby obtaining the current data link status and optical transmission line attenuation margin information.

The advantages of the present invention are:

1. The system of the present invention has a simple structure and small size. After accessing the main base station, it can simulate the working status of the main base station under different loads, which greatly improves the test efficiency of the main base station. Provide accurate basis for later scientific observation equipment access and system expansion;

2. The adjustable load of the present invention can simulate the different load access conditions of the main base station. Because the scientific observation equipment connected to the seabed observation network varies greatly, the power consumption is also different, but the adjustable load can be connected before the scientific observation equipment is connected. Carry out preliminary simulations to check whether the power supply capacity of the main base station meets the needs of access equipment, and provide reliable technical support for the access of scientific observation equipment;

3. With the increase of the running time of the submarine cable and operations such as maintenance, the transmission performance of the optical signal will be affected, thereby affecting the transmission quality of the optical communication line. The optical signal conditioner of the present invention can perform different adjustments on the optical signal on the line Degree of attenuation, the shore base station can evaluate the current optical communication quality by analyzing the attenuated optical signal, verify the transmission margin of the current optical communication network, and provide a reference for later submarine cable maintenance and system expansion;

4. The time parser of the present invention can continuously analyze the time data packets issued by the shore base station, and send the analysis results back to the shore base station through the microcontroller, providing accurate data for the shore base station to evaluate the time synchronization accuracy.

Description of drawings

Fig. 1 is the schematic diagram of the underwater in-situ test system of the main base station of the submarine observation network of the present invention;

Fig. 2 is a schematic diagram of the data communication link between the main base station underwater in-situ testing system and the shore base station of the present invention;

Fig. 3 is a schematic diagram of the power monitoring circuit of the present invention.

Detailed ways

The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figure 1, an underwater in-situ test system for the main base station of the submarine observation network, the system includes: a control subsystem, an adjustable load, and a medium and low voltage conversion module, wherein the control subsystem includes a switch, an optical Signal conditioner, time resolver, microcontroller, temperature and humidity sensor, water leakage detection sensor and power monitoring circuit, etc.

The medium and low voltage conversion module is responsible for converting the DC medium voltage transmitted by the main base station through the connection port into low voltage power supply for the control subsystem; the adjustable load is used to simulate scientific observation equipment with different load characteristics, and the load size can be adjusted by Microcontroller adjustment; the power monitoring circuit on the control subsystem is responsible for monitoring the voltage and current of the connection port and sending it to the microcontroller. The microcontroller sends the obtained power supply information of the connection port to the main base station through the switch, and the main base station Then send it to the shore base station; the shore base station can send test commands to the underwater in-situ test system through the main base station, and the underwater in-situ test system will attenuate the optical signal by adjusting the optical signal regulator and then send it back to the shore through the main base station in the opposite direction The base station is used to detect the performance of the data link, and at the same time verify the size of the attenuation margin of the optical transmission line; the temperature and humidity sensor and the water leakage monitoring sensor are responsible for monitoring the internal environmental status of the underwater in-situ test system, and the microcontroller sends the environmental status information to Give shore base stations for real-time viewing.

The microcontroller is the control core of the entire underwater in-situ test system, equipped with Ethernet and serial communication circuits, etc., it is connected to the switch through Ethernet, and connected to the power monitoring circuit, temperature and humidity sensor, and water leakage monitoring sensor through the serial interface It is connected to the adjustable load and the optical signal conditioner through the IO port, and is used to monitor power supply information, collect environmental sensor information, and realize communication with the main base station. The shore base station can obtain the power status of the connection port detected by the underwater in-situ test system through the link of the shore base station-main base station-underwater in-situ test system, and issue instructions to adjust the adjustable load in the test system. Control the underwater in-situ test system to simulate different external scientific observation equipment, issue luminous attenuation adjustment instructions, and simulate and verify the reliability of the current optical communication network.

Attached Figure 2 shows a schematic diagram of the data communication link between the main base station underwater in-situ test system and the shore base station. The entire data communication link is composed of the shore base station, the main base station, and the underwater in-situ test system. Includes switches, optical signal conditioners, microcontrollers, time resolvers.

The switch realizes the data distribution and integration inside the underwater in-situ test system, and realizes the information transmission with the shore base station through the main base station. The switch is connected to the main base station and the optical signal conditioner by Gigabit Ethernet, and is connected to the microcontroller and the time resolver by Fast Ethernet. The data communication link can realize the uplink and downlink transmission of test data, control information and clock information. The main base station underwater in-situ test system In order to verify the transmission quality of the optical communication link of the submarine observation network, the shore base station first sends the attenuation control command to the main base station through the submarine cable, and the main base station forwards it to the underwater in-situ test system, and then controls Entering the switch of the control subsystem, the switch sends the attenuation control command to the microcontroller, and the microcontroller sets the attenuation parameters of the optical signal conditioner through the IO port according to the received command, and then feeds back the setting success information to the Then the shore base station sends the real test data to the test system through the main base station, and the switch distributes the test data to the optical signal conditioner. After the test data is attenuated, it is sent back to the shore base station along the reverse path. By comparing with the test data sent initially, information such as the bit error rate of the data can be obtained, which can reflect the current data link status and the attenuation margin information of the optical transmission line. The optical signal conditioner in this process does not perform other operations on the data, but only performs attenuation adjustment operations on the transmitted optical signals while performing loopback processing.

When the clock service starts the test, the clock server on the shore base station sends the time data packet with time stamp to the test system through the main base station through the submarine cable, and the switch in the test system distributes the time data packet to the time parser, and the time parser Perform time synchronization data exchange with the shore base station, and analyze the time data packet into the general time information of the scientific observation equipment, so as to serve the time for the microcontroller, and send the analysis result to the microcontroller, and the microcontroller will pass the analysis result through the main The base station sends to the shore base station to provide analysis data for the shore base station to observe the clock synchronization effect. The shore base station can also use the above method to set the adjustable load size of the underwater in-situ test system, simulate the different load capacity of the main base station connection port, and simulate different scientific observation instruments for access testing.

Accompanying drawing 3 shows the schematic diagram of power supply monitoring circuit, and the circuit that the present invention proposes is made up of Hall-effect type isolated voltage sensor U1, operational amplifier U2, microcontroller U3 etc., and this circuit can monitor electric current through sampling resistance, also can The voltage is monitored through a divider resistor. As shown in Figure 3, the voltage sensor U1 is powered by +5V, U+ and U- are respectively connected to the two ends of the sampling resistor R1, the output pin Uz is connected to one end of the resistor R2, and the other end of R2 is connected to the capacitor C1 and the third pin of U2, U2 Using +5V power supply, the 4th pin of U2 is connected to the 1st pin to achieve short circuit, designed as a follower, the 1st pin of U2 is connected to the Zener diode Z1 and the ADC input pin of the microcontroller.

Based on the above system, an underwater in-situ test system for the main base station of the submarine observation network is as follows:

Step 1) Before the main base station is ready to be deployed in the sea on the construction ship, connect the underwater in-situ test system to the connection port of the main base station through the wet plug interface and fix it to the main frame of the main base station.

Step 2) Use the power supply provided by the construction ship to supply power to the main base station, and use the test cable to connect the main base station with the host computer of the main base station. The upper computer of the main base station controls the main base station to open the connection port, the underwater in-situ test system starts to work, and feeds back the power status of the current connection port to the main base station upper computer through the main base station. The upper computer monitors the working status of the connection port in real time and sends test data, and verifies whether the communication function between the main base station and the underwater in-situ test system is normal by receiving the returned data.

Step 3) After the connection function of the main base station is verified to be normal, the main base station and the underwater in-situ test system are deployed on the seabed of the corresponding sea area at the same time.

Step 4) After the construction of the backbone network of the submarine observation network is completed, the shore base station is responsible for communicating with the main base station and the underwater in-situ test system, and receives the connection status information uploaded by the underwater in-situ test system in real time.

Step 5) Before deploying the scientific observation equipment, according to the specific load characteristics of the access equipment, the shore base station sends the corresponding load adjustment command to the underwater in-situ test system to simulate the scientific observation equipment to be connected and send communication test data. The base station judges whether the device can be connected normally through the returned power status and test data of the connection port. If the status is all normal, the construction ship controls the ROV to unplug the underwater in-situ test system from the connection port of the main base station, and connects the scientific observation equipment to the connection port. The underwater in-situ test system can be brought back by the ROV or Continue to stay on the seabed and connect to other vacant connection ports, and carry out the test of the corresponding connection ports.

Step 6) When it is necessary to test the communication network of the current observation network, such as after submarine cable maintenance or before system expansion, the shore base station verifies the optical signal attenuation margin of the current data link by issuing the luminous attenuation adjustment command to the underwater in-situ test system . Take this as the basis for maintaining the seabed observation network and the subsequent system expansion.

Step 7) The design life of the underwater in-situ test system is the same as that of the main base station, and the underwater in-situ test system will be brought back together when the main base station is recovered.

The inventiveness of the present invention lies in:

1. The underwater in-situ test system can be deployed at the same time as the main base station and stay in the sea for a long time, so as to realize the long-term loaded simulation operation of the main base station, and provide the basis and guarantee for the access of scientific observation instruments in the later stage.

2. The underwater in-situ test system has a built-in adjustable load, which can simulate different scientific observation equipment for access testing, and can also record information such as power supply voltage and output power when the main base station is connected to different loads, which can be used to verify the load of the main base station ability.

3. The underwater in-situ test system has a built-in optical signal conditioner, and the shore base station can send test data to the underwater in-situ test system, and verify the communication margin of the current optical communication system by setting different attenuation coefficients. System extension provides reference.

4. The underwater in-situ test system can also replace general test instruments such as electronic loads, oscilloscopes, clock analyzers and other equipment on the shore to perform functional tests of the main base station.

5. The working method of the underwater in-situ test system.

The system of the present invention adopts a separate pressure-resistant package, and can be deployed simultaneously with the main base station after being connected to the connection port of the main base station. Before the actual scientific observation equipment is connected, it can replace the scientific observation equipment and be connected to the seabed observation network. It is not an internal fault detection system of the main base station designed only to monitor the output voltage and current of the connection port, but a complete underwater prototype that integrates medium and low voltage conversion circuits, adjustable loads, time resolvers, and optical signal conditioners. bit test system. Key technologies of the present invention are as follows:

The adjustable load can simulate different load access conditions of the main base station, because the scientific observation equipment connected to the seabed observation network varies greatly, and the power consumption is also different, but the adjustable load can be simulated in advance before the scientific observation equipment is connected. Access to scientific observation equipment provides preliminary technical support.

With the increase of the operating time of the submarine cable and operations such as maintenance, the transmission performance of the optical signal will be affected, thereby affecting the transmission quality of the optical communication line. The optical signal conditioner can attenuate the optical signal on the line to different degrees. The shore base station passes The analysis of the attenuated optical signal can evaluate the quality of the current optical communication, verify the transmission margin of the current optical communication network, and provide a reference for subsequent submarine cable maintenance and system expansion.

The time parser can continuously analyze the time data packets sent by the shore base station, and send the analysis results back to the shore base station through the microcontroller, providing accurate data for the shore base station to evaluate the accuracy of time synchronization.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than limit them. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications or equivalent replacements to the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention, and all of them should be included in the scope of the present invention. within the scope of the claims.

Claims (9)

1. a kind of submarine observation network master base station underwater in-situ tests system, which is characterized in that by plugging into, port connects with master base station It connects, the system comprises：Control subsystem and tunable load；

The control subsystem, the instruction and data sent by master base station for receiving bank base station, to submarine observation network system Carry out state of data link and timing function test；And receive the finger for the adjusting load that bank base station is sent by master base station It enables, adjusts the parameter of tunable load；And the system status information of acquisition is sent to bank base station by master base station；

The tunable load, the finger for receiving the adjusting load that bank base station is sent by master base station and control subsystem It enables, simulation master base station is plugged into the observation device of the connect different loads characteristic in port.

2. submarine observation network master base station underwater in-situ according to claim 1 tests system, which is characterized in that the system Further include：Mesolow conversion module, piezoelectricity is converted to low pressure in the direct current for master base station to be come by port transmission of plugging into Electricity, in order to control subsystem power supply.

3. submarine observation network master base station underwater in-situ according to claim 1 or 2 tests system, which is characterized in that described Control subsystem includes：Interchanger, microcontroller, optical signal adjuster, time resolution device and electric source monitoring circuit；

The interchanger, for realizing the data exchange between the system and master base station；

The microcontroller, the information for monitoring electric source monitoring circuit are sent to master base station and bank base station；Receive bank base It stands the optical attenuation regulating command sent by master base station, optical signal adjuster is configured；It receives bank base station and passes through master base station The instruction of the adjusting load of transmission, is configured tunable load；

The optical signal adjuster；For decaying to the optical signal transmitted by bank base station, optical signal then by interchanger, Master base station sends back bank base station, the performance for detecting the data link, while verifying the size of optical transmission line decaying nargin；

The time resolution device, the time data packet sent by master base station for receiving and parsing bank base station, parses the time Information is microcontroller time service；And analysis result is sent to microcontroller, microcontroller sends out analysis result by master base station It is sent to bank base station, evaluating and testing clock synchronous effect for bank base station provides analysis data；

The electric source monitoring circuit, the voltage and current state for monitoring port of plugging into, and send microcontroller to.

4. submarine observation network master base station underwater in-situ according to claim 3 tests system, which is characterized in that the control Subsystem packet further includes warm and humid sensor and water leakage detection sensor, for monitoring internal system ambient condition, and passes through micro-control The environmental state information of system is sent to bank base station by device and interchanger processed by master base station.

5. submarine observation network master base station underwater in-situ according to claim 4 tests system, which is characterized in that the micro-control Device processed is the control core of whole system, including：Ethernet and serial communication circuit；The microcontroller passes through Ethernet and friendship It changes planes connected；The microcontroller passes through serial line interface and electric source monitoring circuit and warm and humid sensor, water leakage monitoring sensor phase Even；The microcontroller is connected with tunable load, optical signal adjuster respectively by I/O port.

6. submarine observation network master base station underwater in-situ according to claim 3 tests system, which is characterized in that the bank base It stands and adjustable attenuation order is sent to by master base station by extra large cable, master base station forwards it to the interchanger of control subsystem, exchanges Adjustable attenuation order is sent to microcontroller by machine, and the microcontroller carries out optical signal adjuster according to the order received Attenuation parameter is arranged, and setting successful information is then fed back to bank base station along reverse path；The test data warp that bank base station issues Bank base station is returned to along reverse path after the decaying of optical signal adjuster, bank base station carries out it with the test data being originally sent It compares, obtains error rates of data information, thus obtain current data link state and optical transmission line decaying nargin information.

7. submarine observation network master base station underwater in-situ according to claim 3 tests system, which is characterized in that the power supply Observation circuit includes：Voltage sensor U1, operational amplifier U2 and microcontroller U3, the voltage sensor U1 uses+5V confessions Electricity, U+ and U- are separately connected the both ends sample resistance R1, and output pin Uz is connected to the one end resistance R2, the R2 other ends and capacitance C1 and The 3rd pins of U2 connect, operational amplifier U2 uses+5V power supply, and the realization that is connected with the 1st pin of the 4th pins of operational amplifier U2 is short It connects, is designed to that follower, the 1st pin and the ADC input pins of zener diode Z1 and microcontroller of operational amplifier U2 connect It connects.

8. a kind of submarine observation network master base station underwater in-situ test side that the system based on described in one of claim 1-7 is realized Method, the method includes：

Step 1) master base station prepares to plunge into the commercial sea on workboat lay before, by underwater in-situ test system accessed by wet connecting-disconnecting interface It plugs into master base station on port and fixed on master base station main body frame；

Step 2) is powered using the power supply that workboat provides for master base station, while using test cable that master base station is upper with master base station Machine connects；Master base station PC control master base station opens port of plugging into, and underwater in-situ tests system starts, will currently plug into The power supply status of port feeds back to master base station host computer by master base station；It is concurrent that host computer monitors port working state of plugging into real time Test data is sent, it is whether normal by receiving the data verification master base station returned and underwater in-situ test equipment communication function；

Step 3) master base station plug into functional verification it is normal after, by master base station and underwater in-situ test system, cloth is put into corresponding sea simultaneously The seabed in domain；

After the completion of step 4) submarine observation network core network is built, bank base station is responsible for logical with master base station, underwater in-situ test system Letter, real-time reception underwater in-situ test the status information of plugging into that system uploads；

Respective load regulating command is sent to underwater in-situ and surveyed by step 5) according to the specific load characteristic of access device, bank base station Test system simulates the scientific observation equipment that will be accessed, and sends communications test data, the port of plugging into that bank base station passes through return Power supply status and test data judge whether the equipment can normally access；If state is all normal, workboat controls ROV by water Lower in-situ test system is pulled up from master base station port of plugging into, and scientific observation equipment, which is linked into this, plugs on port.

9. submarine observation network master base station underwater in-situ test method according to claim 8, which is characterized in that if necessary Current submarine observation network communication network is tested, the method further includes：

Adjustable attenuation order is sent to master base station by step 6) the bank base station by extra large cable, and master base station forwards it to control Adjustable attenuation order is sent to microcontroller by the interchanger of system, interchanger, and the microcontroller is according to the order received Attenuation parameter setting is carried out to optical signal adjuster, setting successful information is then fed back into bank base station along reverse path；Bank base The test data that station issues returns to bank base station after the decaying of optical signal adjuster along reverse path, bank base station by its with it is initial The test data of transmission is compared, and obtains error rates of data information, thus obtains current data link state and optical transmission line Decay nargin information on road.