Cable test unit for ship-shore connection system

Abstract

The invention provides a cable test unit for a ship-shore connection system. The cable test unit comprises a test box, a 37-core cable and 37 paths of electrical connectors, the 37 paths of electrical joints are adapted to cable connection joints of a ship-shore connection system to realize matching of a physical structure and a core wire sequence; and the cable test unit is used for being connected with a ship-shore connection system in a test state to realize bidirectional signal test and function verification. When the ship-shore connection system is in a test state, after the ship-shore connection system is connected with the cable test unit, the cable test unit can receive a test signal sent by the ship-shore connection system, and the test signal can be correctly displayed on a panel of the cable test unit. Meanwhile, the cable test unit can simulate and send a test signal to the ship-shore connection system, and check whether the ship-shore connection system receives the signal and performs a correct interlocking action.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of ship-shore connection, and particularly relates to a cable test unit for a ship-shore connection system. BACKGROUND

[0002] In order to prevent and control the operation risk during fuel filling or cargo loading and unloading, international conventions, standards and domestic standards and ship classification society regulations require that a ship be equipped with a suitable ship-shore connection system (SSL) to ensure the safety of fuel filling or cargo loading and unloading operation.

[0003] During fuel filling or cargo loading and unloading, once leakage occurs, great risk will be brought, therefore, in the case of leakage or emergency, the valves on both the ship side and the shore side need to be operated simultaneously to avoid damage to the pipeline and equipment and reduce the harm caused by leakage. The ship-shore connection system supports voice communication and emergency shutdown (ESD) functions, and the ESD function can be triggered through the system to ensure that the valves on both the ship side and the shore side are closed simultaneously.

[0004] The ship-shore connection system is composed of a shore-side device and a ship-side device. The ship-shore connection system is arranged with a master control box, a junction box, a marine telephone and a radio device on the ship side and the shore side respectively, and the ship-side device and the shore-side device are connected through movable and quickly connectable optical cable spool, cable spool and air pipe shaft.

[0005] The ship-shore connection system can realize voice communication between the ship side and the shore side through the radio device and the marine telephone, and the two communication modes are mutually reserved. The ship-shore connection system can realize signal transmission of ESD signals and other information between the ship side and the shore side through optical cable connection, cable connection and pneumatic connection, and the three modes can be mutually reserved. In the application of actual ship, the voice communication and signal transmission mode can be selected according to the actual ship situation.

[0006] In summary, the ship-shore connection system is an important ship-shore connection automation device to ensure the safety of fuel filling or cargo loading and unloading operation. In order to ensure the normal operation of the ship-shore connection system, the IGC rule requires that the ship-shore connection system be tested within 24 hours before cargo transfer. Among them, the cable connection loop of the ship-shore connection system needs to be tested by the cable test unit.

[0007] However, the current cable test unit has the following problems: (1) only a small number of cores in the 37-core cable can be tested for complete connection, and a small number of cores are used as a reference for test results, and the connection of the entire 37-core cable cannot be tested, and the test results can only be used as a reference. (2) only whether the cable connection loop is connected can be tested, and whether the signals output by the ship-shore connection system are correct and effective and whether the received signals can be correctly interlocked cannot be tested. (3) the telephone loop, analog loop and communication loop connection cannot be tested. (4) the normal operation of the ship-shore connection system and the correctness of the function cannot be tested. SUMMARY

[0008] In view of the above, the present application aims to provide a cable test unit for a ship-shore connection system to solve the above problems.

[0009] The cable test unit for a ship-shore connection system provided by the embodiments of the present application,

[0010] A cable test unit for a ship-shore connection system, the cable test unit comprising a test box, a 37-core cable and a 37-way electrical connector; the 37-way electrical connector is adapted to the cable connection connector of the ship-shore connection system to realize the matching of the physical structure and the core sequence; the cable test unit is used to connect with the ship-shore connection system in a test state to realize the bidirectional signal test and the function verification.

[0011] Preferably, the cable test unit can receive the test signal from the ship-shore connection system and display the test result on the test box panel through the indicator light to verify that the cable connection loop and the system function are normal.

[0012] Preferably, the cable test unit can simulate and send the test signal to the ship-shore connection system to trigger the alarm and interlocking action of the ship-shore connection system to verify that the system response function is normal.

[0013] Preferably, the cable test unit has a power supply monitoring function and can monitor the test power supply state of the ship end and the shore end and display whether the power supply is normal through the indicator light.

[0014] Preferably, the cable test unit has an analog input and output function and a digital display module and can receive and display the analog signal from the ship-shore connection system to verify that the analog loop connection is normal.

[0015] Preferably, the cable test unit has a communication function and supports the RS485 / RS232 communication protocol and can communicate data with the ship-shore connection system to verify that the communication loop connection is normal.

[0016] Preferably, the cable test unit supports the connectivity test of all 37-core cables, including the telephone loop, the ESD signal loop, the power supply loop, the analog loop and the communication loop.

[0017] Preferably, the test box panel is provided with the following functional components:

[0018] Power supply monitoring module: used to monitor the power supply state of the ship end and the shore end;

[0019] ESD signal simulation and indication module: used to simulate the ESD signal and indicate the receiving state;

[0020] Communication module: support RS485 / RS232 communication, used to realize data interaction with ship-shore connection system;

[0021] Analog quantity processing module: used to receive and display analog quantity signal;

[0022] Digital display module: used to display voltage, communication data and the like in real time;

[0023] Telephone loop detection module: used to detect the loop state of sound force telephone, explosion-proof telephone, hot line telephone and the like.

[0024] The embodiment of the present application brings the following beneficial effects:

[0025] The cable test unit of the present application realizes monitoring of the output power of the ship-shore connection system by adding a power supply monitoring indicator light, verifies that the cable connection loop of the ship-shore connection system is normal, the ship-shore connection system is running normally, and the function is correct. And the power supply is introduced in the cable test unit to power other test modules. The comprehensiveness and accuracy of the cable test are improved

[0026] The cable test unit of the present application realizes the complete 37-core cable connection test, including the telephone loop, by adding indicator lights and buttons and introducing power supply. Through button operation and the light and dark changes of the indicator light, it is tested that the cable connection loop of the ship-shore connection system is normal, the ship-shore connection system is running normally, and the function is correct. The accuracy of the cable test is improved.

[0027] The cable test unit of the present application tests the analog loop and communication loop by adding a communication module, a signal conversion module and a digital display module, tests that the cable connection loop of the ship-shore connection system is normal, the ship-shore connection system is running normally, and the function is correct. The accuracy of the cable test is improved, and the advancement of the cable test unit is improved.

[0028] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent to those skilled in the art from the description, or can be learned by practice of the present application. The objects and other advantages of the present application will be realized and achieved by the structure particularly pointed out in the specification, claims and drawings.

[0029] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the following preferred embodiments are specifically described below, and the accompanying drawings are described in detail as follows. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is the appearance and principle diagram of the existing cable test unit.

[0031] Figure 2 is the ship-shore connection system diagram provided by the embodiment of the present application.

[0032] Figure 3 is the structure diagram of the power supply test unit provided by the embodiment of the present application.

[0033] Figure 4 is the structure diagram of the 37-way electrical connector provided by the embodiment of the present application.

[0034] Figure 5 is the connection relationship diagram of the internal modules. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0036] Referring to Figures 2-4 , a cable test unit for a ship-shore connection system includes a test box, a 37-core cable and a 37-way electrical connector. The 37-way electrical connector is adapted to the cable connection connector of the ship-shore connection system to realize matching of the physical structure and the core sequence; the cable test unit is used to connect with the ship-shore connection system in a test state to realize bidirectional signal test and function verification.

[0037] The test box is integrated with the following modules:

[0038] a power supply monitoring module: monitoring the power supply state of the ship end and the shore end;

[0039] an ESD signal simulation and indication module: simulating the ESD signal and indicating the receiving state, which can include an ESD (shore-ship) indication indicator, an ESD (ship-shore) indication indicator, an ESD (ship-shore) simulation button, a shore end test power supply indication indicator, a ship end test power supply indication indicator and a ship-shore connection simulation button;

[0040] a communication module: supporting RS485 / RS232 communication to realize data interaction with the ship-shore connection system;

[0041] an analog quantity processing module: receiving and displaying analog quantity signals such as cable tension;

[0042] a digital display module: real-time displaying voltage, communication data, cable tension values and the like;

[0043] a telephone loop detection module: which can be a telephone loop state indication indicator to detect the loop states of the sound force telephone, the explosion-proof telephone and the hot line telephone.

[0044] In the test state of the ship-shore connection system in the embodiment:

[0045] The cable test unit can receive test signals from the shore-to-ship connection system and display test results on the test box panel through indicator lights to verify that the cable connection loop and system function normally. Specifically, pressing the emergency stop button connected to the shore-to-ship connection system, the shore-to-ship connection system sends the signal to the cable test unit through the cable, and the "ESD (shore-ship) indication" indicator light of the cable test unit is on, indicating that the shore-to-ship connection system cable connection loop is normal, the shore-to-ship connection system is running normally, and the function is correct.

[0046] The cable test unit can simulate and send test signals to the shore-to-ship connection system to trigger the alarm and interlock action of the shore-to-ship connection system to verify that the system response function is normal. Specifically, pressing the "ESD (ship-shore) simulation" button of the cable test unit, the "ESD (ship-shore)" alarm of the shore-to-ship connection system and the interlock action. At the same time, the "ESD (ship-shore) indication" indicator light of the cable test unit is on, indicating that the shore-to-ship connection system cable connection loop is normal, the shore-to-ship connection system is running normally, and the function is correct.

[0047] The cable test unit has a power supply monitoring function, which can monitor the state of the test power supply at the ship end and the shore end, and display whether the power supply is normal through the indicator light. Specifically, when the shore test power supply is normal, the "shore test power supply" indicator light is on, otherwise the indicator light is off; when the ship test power supply is normal, the "ship test power supply" indicator light is on, otherwise the indicator light is off. This function can test the correctness of the cable connection loop, the normal output function of the shore-to-ship connection system power supply, and at the same time provide a test power supply for the cable test power supply.

[0048] The cable test unit has an analog input and output function and a digital display module, which can receive and display analog signals from the shore-to-ship connection system to verify that the analog loop connection is normal. Specifically, changing the cable tension analog signal on the shore-to-ship connection system, the data on the digital display module of the cable test unit changes with the signal, indicating that the shore-to-ship connection system cable connection loop is normal, the shore-to-ship connection system is running normally, and the function is correct.

[0049] The cable test unit has a communication function, supports RS485 / RS232 communication protocol, and can communicate with the shore-to-ship connection system to verify that the communication loop connection is normal. Specifically, changing the cable tension communication signal on the shore-to-ship connection system, the data on the digital display module of the cable test unit changes with the signal, indicating that the shore-to-ship connection system cable connection loop is normal, the shore-to-ship connection system is running normally, and the function is correct.

[0050] The cable test unit supports connectivity testing of all 37-core cables, including telephone loop, ESD signal loop, power supply loop, analog loop and communication loop.

[0051] Further, the cable test unit is connected with the cable interface of the ship-shore connection system through the 37-way electrical connector. The specific steps of the test process are as follows:

[0052] 1. Power voltage test

[0053] After connecting the cable, the ship end master control cabinet is started, the master control cabinet is set to the test state, the cable test unit displays the power voltage (20V-28V is the normal range), and the corresponding power indicator light is lit.

[0054] 2. Ship-shore connection test

[0055] Press the "ship-shore connection simulation" button on the test box, and the ship end master control cabinet displays the connection success; after releasing the button, it displays the disconnection, indicating that the connection signal is normal.

[0056] 3. Cable tension communication test

[0057] The test box display shows the cable tension value, which is consistent with the value of the ship end monitoring system and changes dynamically, indicating that the communication loop is normal.

[0058] 4. Telephone loop test

[0059] Use each type of telephone on the ship end in turn, and the corresponding indicator light on the test box should be lit and extinguished after hanging up, indicating that the telephone loop is connected normally.

[0060] 5. ESD signal test

[0061] Trigger the ship end emergency stop button, and the "ESD (ship-shore) indication" light on the test box is on;

[0062] Restore the emergency stop button, and confirm the emergency stop signal alarm on the ship end master control cabinet, and the "ESD (ship-shore) indication" light on the test box is off;

[0063] Press the "ESD (shore-ship) simulation" button on the test box, and the ship end master control cabinet should alarm and perform interlocking action.

[0064] Restore the "ESD (shore-ship) simulation" button, and confirm the emergency stop alarm on the ship end master control cabinet, and the emergency stop signal on the master control cabinet disappears and the alarm contact.

[0065] 6. Test completion

[0066] Restore all buttons to the initial state, close the master control cabinet test mode, and close the ship end master control cabinet, and disconnect the cable connection.

[0067] Wherein the performance index is set as: power supply voltage range: 20V-28V; voltage monitoring accuracy: ±0.1V; communication protocol: RS485 / RS232, baud rate 9600-115200bps; working temperature: -45℃-60℃; protection level: IP65.

[0068] It should be noted that the terms "comprising", "including", or any other variant thereof are intended to cover a non-exclusive inclusion, such that processes, methods, articles, or apparatuses that comprise a list of elements are not required to include only those elements recited, but can include other elements not expressly listed or inherent to such processes, methods, articles, or apparatuses.

[0069] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A cable test unit for a ship-to-shore connection system, characterized in that, The cable test unit comprises a test box, a 37-core cable and a 37-way electrical connector; The 37-way electrical connector is adapted to the cable connection connector of the ship-shore connection system, realizing the matching of physical structure and core sequence; The cable test unit is used to connect with the ship-shore connection system in the test state, realizing the bidirectional signal test and function verification.

2. The cable test unit of claim 1, wherein, The cable test unit can receive the test signal from the ship-shore connection system and display the test result on the test box panel through the indicator light, verifying the normal function of the cable connection loop and the system.

3. The cable test unit of claim 2, wherein, The cable test unit can simulate and send the test signal to the ship-shore connection system, triggering the alarm and interlocking action of the ship-shore connection system, verifying the normal response function of the system.

4. The cable test unit of claim 3, wherein, The cable test unit has a power supply monitoring function, which can monitor the test power supply state of the ship end and the shore end, and display whether the power supply is normal through the indicator light.

5. The cable test unit of claim 4, wherein, The cable test unit has an analog input and output function and a digital display module, which can receive and display the analog signal from the ship-shore connection system, verifying the normal connection of the analog loop.

6. The cable test unit of claim 5, wherein, The cable test unit has a communication function, supports RS485 / RS232 communication protocol, and can communicate with the ship-shore connection system, verifying the normal connection of the communication loop.

7. The cable test unit of claim 6, wherein, The cable test unit supports the connectivity test of all 37-core cables, including telephone loop, ESD signal loop, power supply loop, analog loop and communication loop.

8. The cable test unit of claim 1, wherein, The panel of the test box is provided with the following functional components: Power supply monitoring module: used for monitoring the power supply state of the ship end and the shore end; ESD signal simulation and indication module: used for simulating ESD signal and indicating the receiving state; Communication module: supporting RS485 / RS232 communication, used for realizing data interaction with the ship-shore connection system; Analog quantity processing module: used for receiving and displaying analog signal; Digital display module: used for real-time display of voltage, communication data, etc. Telephone loop detection module: used for detecting the loop state of sound power telephone, explosion-proof telephone, hot line telephone, etc.

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