Marine battery water injection and electrolyte monitoring system and method

Abstract

The present invention provides a system and method for monitoring water injection and electrolyte of a marine battery, comprising: a marine battery water injection monitoring group control subsystem, which constructs a combined multi-layer architecture of a marine battery water injection and monitoring bottom control unit, monitors the battery water injection state and electrolyte state in real time online, and obtains battery water injection state information and electrolyte state information; a battery data transfer station combined subsystem, which transfers grouped battery data through a grouped battery data transfer station according to the battery water injection state information and the electrolyte state information; a water injection electrolyte state display control subsystem, which measures density by sending a density measurement instruction through a state display control host computer, and performs display control of the battery water injection state and electrolyte state; a distributed hierarchical complete subsystem, which constructs a distributed hierarchical water injection monitoring complete system through a data transfer hierarchical communication protocol, and performs integrated monitoring and control of the marine battery water injection state and electrolyte state.

Description

Technical Field

[0001] The present invention relates to the technical field of energy utilization and energy storage monitoring precision measurement and automatic control, and more specifically, to a marine battery water injection and electrolyte monitoring system and method. Background Art

[0002] At present, battery water filling and electrolyte monitoring are usually two systems that operate separately and are not integrated. The water level monitoring of the battery water filling monitoring device usually adopts a photoelectric sensor. When working, the photoelectric sensor is easily affected by the suspended particles and bubbles generated when the battery is filled with water, has poor reliability, and is prone to battery electrolyte overflow accidents; the current similar monitoring device density detection adopts a tuning fork sensor, which is affected by bubbles and has a large error and poor stability. The density measurement error is about ±0.008g / cm3; how to integrate battery water filling and electrolyte monitoring into a set, how to save the weight and space of the battery protection system, improve work efficiency, and maintain the vitality of the marine system is of great significance; how to solve the influence of suspended particles to keep the float clean, how to reduce the influence of bubbles on the liquid level sensor to maintain the working reliability of the liquid level sensor, how to improve the accuracy of density measurement and stable working performance, how to prevent the influence of the steam drum on the measured specific gravity, etc., have yet to be solved; therefore, it is necessary to propose a marine battery water filling and electrolyte monitoring system and method to at least partially solve the problems existing in the prior art. Summary of the invention

[0003] A series of simplified concepts are introduced in the content of the invention, which will be further described in detail in the specific implementation method section; the content of the invention of the present invention does not mean to attempt to limit the key features and essential technical features of the technical solution claimed for protection, nor does it mean to attempt to determine the scope of protection of the technical solution claimed for protection.

[0004] In order to at least partially solve the above problems, the present invention provides a marine battery water injection and electrolyte monitoring system, comprising:

[0005] The marine battery water filling monitoring group control subsystem builds a multi-layer architecture for the marine battery water filling and monitoring bottom control unit combination, monitors the battery water filling status and electrolyte status in real time online, and obtains the battery water filling status information and electrolyte status information;

[0006] The battery data transfer station combined subsystem transfers the grouped battery data through the grouped battery data transfer station according to the battery water filling status information and the electrolyte status information;

[0007] The water injection electrolyte status display and control subsystem sends density measurement instructions through the status display and control host computer to perform density measurement, and displays and controls the battery water injection status and electrolyte status;

[0008] Distributed layered complete subsystem, through data transfer layered communication protocol, builds a distributed layered water injection monitoring complete system to carry out integrated monitoring and control of marine battery water injection status and electrolyte status.

[0009] Preferably, the marine battery water injection monitoring group control subsystem includes:

[0010] The water injection monitoring bottom control subsystem performs single battery electrolyte monitoring and water injection device bottom control through water injection and monitoring bottom control unit; real-time online monitoring of battery water injection status information and electrolyte status information; battery electrolyte status information includes: battery electrolyte specific gravity information, liquid level information, voltage information and temperature information;

[0011] The bottom control combined monitoring subsystem groups and combines multiple water injection and monitoring bottom control units and shares the communication bus and communication protocol, building a multi-layer architecture of bottom control group combination for marine battery water injection and electrolyte monitoring; each marine battery compartment is configured with 240 batteries, with a total of 10 grouped battery groups, each with 24 batteries, corresponding to 24 water injection and monitoring bottom control units sharing a communication bus; each communication bus can expand up to 32 nodes;

[0012] The bottom control unit for water injection and monitoring includes: a processor CPU, a water injection device, a clarinet-type liquid level sensor assembly, a density measuring device and a driving circuit, a temperature sensor, a voltage measurement module and a CAN communication interface, and a battery-powered working power supply; the CAN communication interface communicates with the grouped battery data transfer station; the liquid level in the battery is measured through the clarinet-type liquid level sensor assembly; the float of the clarinet-type liquid level sensor assembly is simultaneously rinsed with distilled water when adding water to keep the float of the clarinet-type liquid level sensor assembly clean; a bubble-reducing water outlet hole is set on the vertical wall of the clarinet-type liquid level sensor assembly shell to reduce the influence of bubbles on the liquid level sensor and maintain the working reliability of the clarinet-type liquid level sensor assembly; in order to prevent the influence of the steam drum on the measured specific gravity, the sampling port position is changed and the diameter is increased to prevent bubbles from being sucked in from the sampling port, thereby solving the influence of the steam drum on the specific gravity measurement; temperature compensation is performed through resonance tube measurement and the supporting software for resonance tube measurement to greatly reduce the density measurement error; the density measurement error is kept within 0.003g / cm3.

[0013] Preferably, the battery data transfer station combined subsystem includes:

[0014] The front-end information data receiving subsystem collects the battery water filling status information and electrolyte status information in real time; communicates with the water filling and monitoring bottom control unit through the CAN communication interface;

[0015] The rotor system in the information data sorting process is transmitted to the status display and control host computer through the information data sorting transfer; it communicates with the status display and control host computer through the RS485 communication interface;

[0016] The grouped battery data transfer station includes: 240 batteries are configured in each battery compartment, and a total of 10 battery data transfer stations are set up; each battery data transfer station corresponds to 24 water injection and monitoring bottom control units; communication control and external 24V power supply are obtained through the data transfer processor CPU and external power supply.

[0017] Preferably, the water injection electrolyte state display and control subsystem includes:

[0018] Density measurement command control subsystem: when density measurement is required, the status display control host computer sends density measurement commands to the water injection and monitoring bottom control unit for density measurement according to the density measurement commands;

[0019] The water injection electrolyte status display subsystem, the status display control host computer page refreshes once to display the measurement result once, and displays the battery water injection status and electrolyte status information;

[0020] The status display and control host computer display displays the liquid level, density, voltage and temperature information of each battery in real time, the dynamic display of battery water filling, real-time clock display and time setting, and displays communication faults and battery liquid level trend charts according to query instructions; it displays the battery electrolyte specific gravity information, liquid level information, voltage information and temperature information of the entire compartment.

[0021] Preferably, the distributed hierarchical complete subsystem includes:

[0022] The hierarchical communication bus subsystem adopts a distributed hierarchical architecture combination grouping. The distributed hierarchical architecture combination grouping includes: 240 batteries, each group of 24 batteries is evenly divided into 10 groups. Each group battery data transfer station transfers the collected data of each water injection and monitoring bottom control unit to the status display and control host computer through the CAN2.0 communication bus; the status display and control host computer and the group battery data transfer station communicate with each other through the RS485 communication bus;

[0023] The communication protocol subsystem uses the data transfer layered communication protocol. The status display and control host computer and the grouped battery data transfer station communicate with each other through the RS485 communication bus, and adopts the ModBUS communication protocol; 8 bytes of data are used to represent the electrolyte level information, density information, temperature information and battery voltage information, and the RS485 communication bus baud rate between the grouped battery data transfer station and the status display and control host computer is set to 9600bps; the CAN communication bus baud rate between the grouped battery data transfer station and the water injection and monitoring bottom control unit is set to 100kbps; 10 group status information are refreshed within 1s, and all the combined group status information of the system is refreshed, and the battery water injection subsystem and the electrolyte monitoring subsystem are integrated into a distributed layered water injection monitoring system.

[0024] The present invention provides a method for water injection and electrolyte monitoring of a marine battery, comprising:

[0025] S100, builds a multi-layer architecture of marine battery water filling and monitoring bottom control unit combination, monitors the battery water filling status and electrolyte status in real time online, and obtains battery water filling status information and electrolyte status information;

[0026] S200, transferring the grouped battery data through a grouped battery data transfer station according to the battery water filling state information and the electrolyte state information;

[0027] S300, sending a density measurement instruction through the status display control host computer to perform density measurement, and perform battery water filling status and electrolyte status display control;

[0028] S400, through the data transfer layered communication protocol, integrates the battery water injection control and electrolyte monitoring system into a complete set, builds a distributed layered water injection monitoring system, and performs integrated monitoring and control of the water injection status and electrolyte status of marine batteries.

[0029] Preferably, S100 includes:

[0030] S101, through the water injection and monitoring bottom control unit, the single battery electrolyte monitoring and water injection device bottom control are performed; the battery water injection status information and electrolyte status information are monitored online in real time; the battery electrolyte status information includes: battery electrolyte specific gravity information, liquid level information, voltage information and temperature information;

[0031] S102, multiple water injection and monitoring bottom control units are grouped and combined to share a communication bus and a communication protocol, so as to construct a multi-layer architecture of the bottom control grouping for water injection and electrolyte monitoring of marine batteries; each marine battery compartment is configured to include 240 batteries, with a total of 10 grouped battery groups, each with 24 batteries, and 24 corresponding water injection and monitoring bottom control units share a communication bus; each communication bus can expand up to 32 nodes;

[0032] The bottom control unit for water injection and monitoring includes: a processor CPU, a water injection device, a clarinet-type liquid level sensor assembly, a density measuring device and a driving circuit, a temperature sensor, a voltage measurement module and a CAN communication interface, and a battery-powered working power supply; the CAN communication interface communicates with the grouped battery data transfer station; the liquid level in the battery is measured through the clarinet-type liquid level sensor assembly; the float of the clarinet-type liquid level sensor assembly is simultaneously rinsed with distilled water when adding water to keep the float of the clarinet-type liquid level sensor assembly clean; a bubble-reducing water outlet hole is set on the vertical wall of the clarinet-type liquid level sensor assembly shell to reduce the influence of bubbles on the liquid level sensor and maintain the working reliability of the clarinet-type liquid level sensor assembly; in order to prevent the influence of the steam drum on the measured specific gravity, the sampling port position is changed and the diameter is increased to prevent bubbles from being sucked in from the sampling port, thereby solving the influence of the steam drum on the specific gravity measurement; temperature compensation is performed through resonance tube measurement and the supporting software for resonance tube measurement to greatly reduce the density measurement error; the density measurement error is kept within 0.003g / cm3.

[0033] Preferably, S200 includes:

[0034] S201, collecting battery water filling status information and electrolyte status information in real time; communicating with the water filling and monitoring bottom control unit through the CAN communication interface;

[0035] S202, after the information data is sorted and transferred, it is transmitted to the status display and control host computer; and the status display and control host computer is communicated through the RS485 communication interface;

[0036] The grouped battery data transfer station includes: 240 batteries are configured in each battery compartment, and a total of 10 battery data transfer stations are set up; each battery data transfer station corresponds to 24 water injection and monitoring bottom control units; communication control and external 24V power supply are obtained through the data transfer processor CPU and external power supply.

[0037] Preferably, S300 includes:

[0038] S301, when density measurement is required, the status display control host computer sends a density measurement instruction to the water injection and monitoring bottom control unit for density measurement according to the density measurement instruction;

[0039] S302, the status display control host computer page is refreshed once to display the measurement result once, and the battery water filling status and electrolyte status information are displayed;

[0040] The status display and control host computer display displays the liquid level, density, voltage and temperature information of each battery in real time, the dynamic display of battery water filling, real-time clock display and time setting, and displays communication faults and battery liquid level trend charts according to query instructions; it displays the battery electrolyte specific gravity information, liquid level information, voltage information and temperature information of the entire compartment.

[0041] Preferably, S400 includes:

[0042] S401, adopts distributed hierarchical architecture combination grouping, the distributed hierarchical architecture combination grouping includes: 240 batteries, each group of 24 batteries is evenly divided into 10 groups, each group battery data transfer station transfers the collected data of each water injection and monitoring bottom control unit to the status display and control host computer through the CAN2.0 communication bus; the status display and control host computer and the group battery data transfer station communicate data through the RS485 communication bus;

[0043] S402, through the data transfer layered communication protocol, the status display and control host computer and the grouped battery data transfer station communicate with each other through the RS485 communication bus, using the ModBUS communication protocol; 8 bytes of data are used to represent the electrolyte level information, density information, temperature information and battery voltage information, and the RS485 communication bus baud rate between the grouped battery data transfer station and the status display and control host computer is set to 9600bps; the CAN communication bus baud rate between the grouped battery data transfer station and the water injection and monitoring bottom control unit is set to 100kbps; 10 group status information are refreshed within 1s, and all the combined group status information of the system is refreshed; the battery water injection subsystem and the electrolyte monitoring subsystem are integrated into a distributed layered water injection monitoring system.

[0044] Compared with the prior art, the present invention has at least the following beneficial effects:

[0045] The present invention provides a system and method for monitoring water injection and electrolyte of a marine battery. Through a marine battery water injection monitoring group control subsystem, a multi-layer architecture of a marine battery water injection and monitoring bottom control unit is constructed to monitor the battery water injection state and electrolyte state in real time online, and obtain the battery water injection state information and electrolyte state information; a battery data transfer station combination subsystem transfers grouped battery data through a grouped battery data transfer station according to the battery water injection state information and electrolyte state information; a water injection electrolyte state display and control subsystem sends a density measurement instruction through a state display and control host computer to perform density measurement, and performs battery The battery water filling status and electrolyte status display control; distributed layered complete subsystem, through the data transfer layered communication protocol, build a distributed layered water filling monitoring system, and carry out integrated monitoring and control of the marine battery water filling status and electrolyte status; it can form a multi-layer architecture of marine battery water filling and monitoring underlying control units, and the timeliness and accuracy of monitoring the battery water filling status and electrolyte status are significantly improved; through the grouped battery data transfer station, the grouped battery data is transferred, and the data transfer transmission efficiency is significantly improved; the density measurement command is sent through the status display control host computer to measure the density, and the battery water filling status and electrolyte status are monitored. Status display control, measurement accuracy and control accuracy are significantly improved; a distributed layered water injection monitoring system is constructed to carry out integrated monitoring and control of the water injection status and electrolyte status of marine batteries. The size of the marine battery water injection monitoring device is greatly reduced, and it can improve energy utilization, save valuable space and energy on ships, and significantly improve control efficiency; a clarinet-type liquid level sensor component is used, and the influence of suspended particles is considered during design. When adding water, it is rinsed with distilled water to keep the float clean; in order to reduce the influence of bubbles on the liquid level sensor, the water outlet is opened on the vertical wall of the sensor housing to maintain the working reliability of the clarinet-type liquid level sensor component; In order to maintain the accuracy of density measurement, resonance tube measurement technology is adopted, and temperature compensation measures are taken in the supporting software to make the density measurement error within 0.003g / cm3, which greatly improves the density measurement accuracy and the working performance is stable and reliable. In order to prevent the influence of the steam drum on the measured specific gravity, the sampling port position is changed and the diameter is increased to prevent bubbles from being sucked in from the sampling port and affecting the accuracy of specific gravity measurement. The accuracy of specific gravity measurement is significantly improved. The battery water filling and electrolyte monitoring are integrated into a system to save the weight and space of the battery protection system, improve work efficiency, and maintain the vitality of the marine system, which is of great significance and significant effect.

[0046] The present invention discloses a system and method for water injection and electrolyte monitoring of a marine battery. Other advantages, objectives and features of the present invention will be reflected in part through the following description, and will also be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0048] Figure 1 This is a diagram of an embodiment of a marine battery water injection and electrolyte monitoring system according to the present invention.

[0049] Figure 2 This is another embodiment of a marine battery water injection and electrolyte monitoring system according to the present invention.

[0050] Figure 3 The present invention is a diagram of an embodiment of a marine battery water injection and electrolyte monitoring system and method.

[0051] Figure 4 This is a control framework implementation diagram of a marine battery water injection and electrolyte monitoring system and method according to the present invention.

[0052] Figure 5 This is a diagram showing an embodiment of a liquid level sensor for a marine battery water injection and electrolyte monitoring system and method according to the present invention. DETAILED DESCRIPTION

[0053] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments so that those skilled in the art can implement the invention with reference to the instructions. As shown in the drawings, the present invention provides a marine battery water injection and electrolyte monitoring system, comprising:

[0054] The marine battery water filling monitoring group control subsystem builds a multi-layer architecture for the marine battery water filling and monitoring bottom control unit combination, monitors the battery water filling status and electrolyte status in real time online, and obtains the battery water filling status information and electrolyte status information;

[0055] The battery data transfer station combined subsystem transfers the grouped battery data through the grouped battery data transfer station according to the battery water filling status information and the electrolyte status information;

[0056] The water injection electrolyte status display and control subsystem sends density measurement instructions through the status display and control host computer to perform density measurement, and displays and controls the battery water injection status and electrolyte status;

[0057] Distributed layered complete subsystem, through data transfer layered communication protocol, builds a distributed layered water injection monitoring complete system to carry out integrated monitoring and control of marine battery water injection status and electrolyte status.

[0058] The principle and effect of the above technical solution are as follows: the present invention provides a marine battery water filling and electrolyte monitoring system, including: a marine battery water filling monitoring group control subsystem, which constructs a marine battery water filling and monitoring bottom control unit combined multi-layer architecture, monitors the battery water filling status and electrolyte status in real time online, and obtains the battery water filling status information and electrolyte status information; a battery data transfer station combined subsystem, which transfers grouped battery data through the grouped battery data transfer station according to the battery water filling status information and the electrolyte status information; a water filling electrolyte status display and control subsystem, which sends a density measurement instruction through the status display and control host computer to perform density measurement , and display and control the battery water filling status and electrolyte status; distributed layered complete subsystem, through the data transfer layered communication protocol, build a distributed layered water filling monitoring system, and perform integrated monitoring and control of the marine battery water filling status and electrolyte status; can form a multi-layer architecture of marine battery water filling and monitoring underlying control units, and significantly improve the timeliness and accuracy of monitoring the battery water filling status and electrolyte status; through the grouped battery data transfer station, grouped battery data transfer is performed, and the data transfer transmission efficiency is significantly improved; through the status display control host computer, density measurement instructions are sent to perform density measurement, and the battery water filling status and electrolyte status are displayed. The state display control significantly improves the measurement accuracy and control accuracy; a distributed layered water injection monitoring system is constructed to carry out integrated monitoring and control of the water injection status and electrolyte status of marine batteries. The size of the marine battery water injection monitoring device is greatly reduced, and it can improve energy utilization, save valuable space and energy on ships, and significantly improve control efficiency; a clarinet-type liquid level sensor component is used, and the influence of suspended particles is considered in the design. When adding water, it is rinsed with distilled water to keep the float clean; in order to reduce the influence of bubbles on the liquid level sensor, the water outlet is opened on the vertical wall of the sensor housing to maintain the working reliability of the clarinet-type liquid level sensor component; in order to maintain the density measurement In order to ensure the accuracy of the density measurement, the resonance tube measurement technology is adopted, and temperature compensation measures are taken in the supporting software to make the density measurement error within 0.003g / cm3, which greatly improves the density measurement accuracy and makes the working performance stable and reliable. In order to prevent the influence of the steam drum on the measured specific gravity, the sampling port position is changed and the diameter is increased to prevent bubbles from being sucked in from the sampling port and affecting the specific gravity measurement accuracy. The specific gravity measurement accuracy is significantly improved. The battery water filling and electrolyte monitoring are integrated into a system to save the weight and space of the battery protection system, improve work efficiency, and maintain the vitality of the marine system, which is of great significance and significant effect.

[0059] In one embodiment, a marine battery water injection monitoring group control subsystem includes:

[0060] The water injection monitoring bottom control subsystem performs single battery electrolyte monitoring and water injection device bottom control through water injection and monitoring bottom control unit; real-time online monitoring of battery water injection status information and electrolyte status information; battery electrolyte status information includes: battery electrolyte specific gravity information, liquid level information, voltage information and temperature information;

[0061] The bottom control combined monitoring subsystem groups and combines multiple water injection and monitoring bottom control units and shares the communication bus and communication protocol, building a multi-layer architecture of bottom control group combination for marine battery water injection and electrolyte monitoring; each marine battery compartment is configured with 240 batteries, with a total of 10 grouped battery groups, each with 24 batteries, corresponding to 24 water injection and monitoring bottom control units sharing a communication bus; each communication bus can expand up to 32 nodes;

[0062] The bottom control unit for water injection and monitoring includes: a processor CPU, a water injection device, a clarinet-type liquid level sensor assembly, a density measuring device and a driving circuit, a temperature sensor, a voltage measurement module and a CAN communication interface, and a battery power supply; the CAN communication interface communicates with the grouped battery data transfer station; the liquid level in the battery is measured through the clarinet-type liquid level sensor assembly; when adding water, the clarinet-type liquid level sensor assembly float is simultaneously rinsed with distilled water to keep the clarinet-type liquid level sensor assembly float clean; a bubble-reducing water outlet hole is set on the vertical wall of the clarinet-type liquid level sensor assembly shell to reduce the influence of bubbles on the liquid level sensor and maintain the working reliability of the clarinet-type liquid level sensor assembly; when sampling the electrolyte, the lower end of the sampling tube is closed and the sampling port It is opened on the vertical wall of the sampling tube, and the diameter of the sampling port is larger than the diameter of the sampling tube, which reduces the flow rate of the sampling port, prevents bubbles from being sucked in from the sampling port, and solves the influence of the steam drum on the specific gravity measurement; temperature compensation is performed through resonance tube measurement and resonance tube measurement supporting software. The compensation principle is: compare the summer density measurement value of any current electrolyte temperature with the density calibration value at room temperature, and multiply the difference by the electrolyte temperature density coefficient; the electrolyte temperature density coefficient is obtained based on the change of electrolyte temperature by 1°C and the change of density by 0.007g / cm3; the density value at any temperature is added to the temperature comparison compensation value, and the obtained electrolyte density value is the actual density value at any current electrolyte temperature, which greatly reduces the density measurement error; the density measurement error is within 0.003g / cm3.

[0063] The principle and effect of the above technical solution are as follows: the marine battery water injection monitoring group control subsystem includes: a water injection monitoring bottom control subsystem, which performs single battery electrolyte monitoring and water injection device bottom control through water injection and monitoring bottom control unit; real-time online monitoring of battery water injection status information and electrolyte status information; battery electrolyte status information includes: battery electrolyte specific gravity information, liquid level information, voltage information and temperature information; bottom control combined monitoring subsystem, which groups and combines multiple water injection and monitoring bottom control units and shares the communication bus and communication protocol to construct a marine battery water injection and electrolyte monitoring bottom control group combination multi-layer architecture; each marine battery compartment is configured with 240 batteries, with a total of 10 grouped battery groups, each with 24 batteries, corresponding to 24 water injection and monitoring bottom control units sharing a communication bus; each communication bus can expand up to 32 nodes;

[0064] The bottom control unit for water injection and monitoring includes: a processor CPU, a water injection device, a clarinet-type liquid level sensor assembly, a density measuring device and a driving circuit, a temperature sensor, a voltage measurement module and a CAN communication interface, and a battery-powered working power supply; the CAN communication interface communicates with the grouped battery data transfer station; the liquid level in the battery is measured through the clarinet-type liquid level sensor assembly; the float of the clarinet-type liquid level sensor assembly is simultaneously rinsed with distilled water when adding water to keep the float of the clarinet-type liquid level sensor assembly clean; a bubble-reducing water outlet hole is set on the vertical wall of the clarinet-type liquid level sensor assembly shell to reduce the influence of bubbles on the liquid level sensor and maintain the working reliability of the clarinet-type liquid level sensor assembly; in order to prevent the influence of the steam drum on the measured specific gravity, the sampling port position is changed and the diameter is increased to prevent bubbles from being sucked in from the sampling port, thereby solving the influence of the steam drum on the specific gravity measurement; temperature compensation is performed through resonance tube measurement and the supporting software for resonance tube measurement to greatly reduce the density measurement error; the density measurement error is within 0.003g / cm3;

[0065] When the clarinet-type liquid level sensor assembly detects that the liquid level reaches the set minimum liquid level, the processor CPU controls to issue a liquid level low limit alarm, indicating that water injection is required; the processor CPU controls to trigger a water injection start control signal; according to the water injection start control signal, the water injection solenoid valve of the water injection device is controlled to be connected, the water source pipeline is connected, and water injection begins;

[0066] When the clarinet-type liquid level sensor assembly detects that the liquid level reaches the set upper limit level, the processor CPU controls to send a signal to close the solenoid valve, and the status display control host computer receives the signal to close the solenoid valve, cuts off the power to the solenoid valve, and stops water injection;

[0067] When density measurement is required, the status display and control host computer sends a command signal to the water injection and monitoring bottom control unit CPU according to the density measurement command. The water injection and monitoring bottom control unit triggers the density measurement command signal, controls the connection of the diaphragm pump power supply of the density measurement device, starts the diaphragm pump, extracts the electrolyte in the battery to the resonant tube density measurement sensor of the density measurement device for density measurement, and performs temperature compensation through the resonant tube measurement supporting software to obtain density measurement data; the density measurement data is then transmitted back to the status display and control host computer, and the status display and control host computer displays the measured density result;

[0068] The working power of the water injection and monitoring bottom control unit is taken from the single battery monitored by each, and is converted to supply power to each component circuit; the battery power supply includes: battery power supply and battery power supply control power supply; the battery power supply includes 220V power supply; the battery power supply control power supply includes 24V power supply;

[0069] The temperature sensor directly measures the electrolyte temperature in the battery; the voltage measurement module measures the battery voltage in real time; the electrolyte temperature signal and battery voltage signal are transmitted to the status display control host computer through water injection and monitoring of the bottom control unit CPU;

[0070] The clarinet type liquid level sensor assembly includes: a shell 1101, a float 1102, a liquid through hole 1103, a clarinet type liquid level sensor 1104, a water injection pipe 1105, and a suction pipe 1106; the shell is a hollow cavity structure, and a bubble-reducing water outlet hole and a liquid through hole are arranged on the vertical wall of the shell to significantly reduce bubbles; a float is arranged on the clarinet type liquid level sensor; the water injection pipe injects water into the shell through the suction pipe and sucks it in and blocks bubbles from entering the suction port 1107 of the suction pipe through the liquid through hole; the float of the clarinet type liquid level sensor assembly is synchronously flushed with distilled water when adding water through the water injection pipe to keep the float of the clarinet type liquid level sensor assembly clean; the bubble-reducing water outlet hole and the liquid through hole reduce the influence of bubbles on the liquid level sensor, and significantly improve the working reliability of the clarinet type liquid level sensor assembly.

[0071] In one embodiment, the battery data transfer station combined subsystem includes:

[0072] The front-end information data receiving subsystem collects the battery water filling status information and electrolyte status information in real time; communicates with the water filling and monitoring bottom control unit through the CAN communication interface;

[0073] The rotor system in the information data sorting process is transmitted to the status display and control host computer through the information data sorting transfer; it communicates with the status display and control host computer through the RS485 communication interface;

[0074] The grouped battery data transfer station includes: 240 batteries are configured in each battery compartment, and a total of 10 battery data transfer stations are set up; each battery data transfer station corresponds to 24 water injection and monitoring bottom control units; communication control and external 24V power supply are obtained through the data transfer processor CPU and external power supply.

[0075] The principle and effect of the above technical solution are as follows: the battery data transfer station combined subsystem includes: a front-end information data receiving subsystem, which collects battery water filling status information and electrolyte status information in real time; communicates with the water filling and monitoring bottom control unit through the CAN communication interface; an information data sorting subsystem, which is transmitted to the status display and control host computer through information data sorting and transfer; communicates with the status display and control host computer through the RS485 communication interface; the grouped battery data transfer station includes: 240 batteries are configured in each battery compartment, and a total of 10 battery data transfer stations are set up; each battery data transfer station corresponds to 24 water filling and monitoring bottom control units; communication control and external 24V power supply are obtained through the data transfer processor CPU and external power supply; grouped battery data is transferred through the grouped battery data transfer station, and the data transfer transmission efficiency is significantly improved.

[0076] In one embodiment, the water injection electrolyte state display and control subsystem includes:

[0077] Density measurement command control subsystem: when density measurement is required, the status display control host computer sends density measurement commands to the water injection and monitoring bottom control unit for density measurement according to the density measurement commands;

[0078] The water injection electrolyte status display subsystem, the status display control host computer page refreshes once to display the measurement result once, and displays the battery water injection status and electrolyte status information;

[0079] The status display and control host computer display displays the liquid level, density, voltage and temperature information of each battery in real time, the dynamic display of battery water filling, real-time clock display and time setting, and displays communication faults and battery liquid level trend charts according to query instructions; it displays the battery electrolyte specific gravity information, liquid level information, voltage information and temperature information of the entire compartment.

[0080] The principle and effect of the above technical solution are as follows: the water-filled electrolyte state display and control subsystem includes: a density measurement command control subsystem. When the density needs to be measured, the state display and control host computer sends a density measurement command to the water filling and monitoring bottom control unit for density measurement according to the density measurement command; the water-filled electrolyte state display subsystem. The state display and control host computer page refreshes once to display a measurement result, and displays the battery water filling state and electrolyte state information; the state display and control host computer display displays the liquid level, density, voltage and temperature information of each battery in real time, the battery water filling dynamic display, real-time clock display and time setting, and displays communication faults and battery liquid level trend charts according to query commands; displays the battery electrolyte specific gravity information, liquid level information, voltage information and temperature information of the entire compartment; the state display and control host computer includes: a processor CPU, an RS485 communication interface, a non-volatile memory, a clock chip, a display and an external power supply for the display; the RS485 communication interface and the grouped battery data The transfer station communicates; the external power supply of the display is an external 220V power supply; a corrosion-resistant elastic sealing plate is set at the water injection setting level. When the battery water injection level reaches the water injection setting level, the gap under the corrosion-resistant elastic sealing plate is completely filled and sealed, and a shrinkage buffer layer is set on the corrosion-resistant elastic sealing plate; when thermal expansion and contraction occur, the corrosion-resistant elastic sealing plate undergoes slight convex and concave deformation with expansion and contraction, and maintains edge sealing through elasticity without bursting; the shrinkage buffer layer is filled with pure water, and an external circulation heat exchange is performed; the slight convex and concave deformation of the corrosion-resistant elastic sealing plate is buffered, and the short-term over-temperature heat in the battery is quickly absorbed when the battery is over-heated for a short time; when the ambient temperature is cold and the battery temperature is too low, and the storage energy drops below the set storage energy, the external circulation heat exchange is flushed with suitable temperature pure water, so that the temperature in the battery rises slightly to the set normal energy storage temperature, and the battery storage energy is kept stable; the external circulation heat exchange, the heat is dissipated through the heat exchanger, the heating is taken from the heat dissipation of the ship engine, and the heat dissipation energy of the ship engine is recycled;

[0081] The status display control host computer receives the battery electrolyte specific gravity, liquid level, voltage and temperature information forwarded by each group battery data transfer station in real time, and updates the display data;

[0082] It also has battery status records, system information records and communication fault identification records; system information includes clock information or control information.

[0083] In one embodiment, a distributed hierarchical subsystem includes:

[0084] The hierarchical communication bus subsystem adopts a distributed hierarchical architecture combination grouping. The distributed hierarchical architecture combination grouping includes: 240 batteries, each group of 24 batteries is evenly divided into 10 groups. Each group battery data transfer station transfers the collected data of each water injection and monitoring bottom control unit to the status display and control host computer through the CAN2.0 communication bus; the status display and control host computer and the group battery data transfer station communicate with each other through the RS485 communication bus;

[0085] The communication protocol subsystem uses the data transfer layered communication protocol. The status display and control host computer and the grouped battery data transfer station communicate with each other through the RS485 communication bus, and adopts the ModBUS communication protocol; 8 bytes of data are used to represent the electrolyte level information, density information, temperature information and battery voltage information, and the RS485 communication bus baud rate between the grouped battery data transfer station and the status display and control host computer is set to 9600bps; the CAN communication bus baud rate between the grouped battery data transfer station and the water injection and monitoring bottom control unit is set to 100kbps; 10 group status information are refreshed within 1s, and all the combined group status information of the system is refreshed, and the battery water injection subsystem and the electrolyte monitoring subsystem are integrated into a distributed layered water injection monitoring system.

[0086] The principle and effect of the above technical solution are as follows: a distributed hierarchical complete subsystem, including: a hierarchical communication bus subsystem, which adopts a distributed hierarchical architecture combination grouping, and the distributed hierarchical architecture combination grouping includes: 240 batteries, each group of 24 batteries is evenly divided into 10 groups, and each group battery data transfer station transfers the collected data of each water injection and monitoring bottom control unit to the status display and control host computer through the CAN2.0 communication bus; the status display and control host computer and the group battery data transfer station communicate with each other through the RS485 communication bus; the communication protocol subsystem, through the data transfer hierarchical communication protocol, the status display and control host computer and the group battery data transfer station communicate with each other through the RS485 communication bus, using ModB US communication protocol; 8 bytes of data are used to represent electrolyte level information, density information, temperature information and battery voltage information; the baud rate of the RS485 communication bus between the grouped battery data transfer station and the status display and control host computer is set to 9600bps; the baud rate of the CAN communication bus between the grouped battery data transfer station and the water injection and monitoring bottom control unit is set to 100kbps; 10 group status information are refreshed within 1s, and all combined group status information of the system is refreshed, and the battery water injection subsystem and the electrolyte monitoring subsystem are integrated into a distributed layered water injection monitoring system; saving the weight and space of the battery support system, improving work efficiency, and being able to maintain the vitality of the marine system have great significance and significant effects.

[0087] The present invention provides a method for water injection and electrolyte monitoring of a marine battery, comprising:

[0088] S100, builds a multi-layer architecture of marine battery water filling and monitoring bottom control unit combination, monitors the battery water filling status and electrolyte status in real time online, and obtains battery water filling status information and electrolyte status information;

[0089] S200, transferring the grouped battery data through a grouped battery data transfer station according to the battery water filling state information and the electrolyte state information;

[0090] S300, sending a density measurement instruction through the status display control host computer to perform density measurement, and perform battery water filling status and electrolyte status display control;

[0091] S400, through the data transfer layered communication protocol, integrates the battery water injection control and electrolyte monitoring system into a complete set, builds a distributed layered water injection monitoring system, and performs integrated monitoring and control of the water injection status and electrolyte status of marine batteries.

[0092] The principle and effect of the above technical solution are as follows: the present invention provides a method for monitoring water filling and electrolyte of a marine battery, including: constructing a multi-layer architecture of a marine battery water filling and monitoring bottom control unit combination, real-time online monitoring of the battery water filling state and electrolyte state, and obtaining the battery water filling state information and electrolyte state information; according to the battery water filling state information and electrolyte state information, performing grouped battery data transfer through a grouped battery data transfer station; sending a density measurement instruction through a status display control host computer to perform density measurement, and performing display control of the battery water filling state and electrolyte state; through a data transfer layered communication protocol, The battery water injection control and electrolyte monitoring system are integrated into a complete set to build a distributed layered water injection monitoring system to perform integrated monitoring and control of the marine battery water injection status and electrolyte status; it can form a multi-layer architecture of marine battery water injection and monitoring underlying control units, and significantly improve the timeliness and accuracy of monitoring the battery water injection status and electrolyte status; through the grouped battery data transfer station, the grouped battery data is transferred, and the data transfer transmission efficiency is significantly improved; the density measurement command is sent through the status display control host computer to perform density measurement, and the battery water injection status and electrolyte status display control are performed, and the measurement accuracy and control accuracy are improved. Significantly improved; a distributed stratified water injection monitoring system is constructed to carry out integrated monitoring and control of the water injection status and electrolyte status of marine batteries. The size of the marine battery water injection monitoring device is greatly reduced, and it can improve energy utilization, save valuable space and energy on ships, and significantly improve control efficiency; a clarinet-type liquid level sensor component is used, and the influence of suspended particles is considered in the design. When adding water, it is rinsed with distilled water to keep the float clean; in order to reduce the influence of bubbles on the liquid level sensor, the water outlet is opened on the vertical wall of the sensor housing to maintain the working reliability of the clarinet-type liquid level sensor component; in order to maintain the accuracy of density measurement, a harmonic Vibration tube measurement technology is used, and temperature compensation measures are taken in the supporting software to make the density measurement error within 0.003g / cm3, which greatly improves the density measurement accuracy, and the working performance is stable and reliable; in order to prevent the influence of the steam drum on the measured specific gravity, the sampling port position is changed and the diameter is increased to prevent bubbles from being sucked in from the sampling port and affecting the specific gravity measurement accuracy, and the specific gravity measurement accuracy is significantly improved; the battery water filling and electrolyte monitoring are integrated into a system to save the weight and space of the battery protection system, improve work efficiency, and maintain the vitality of the marine system, which is of great significance and significant effect.

[0093] In one embodiment, S100 includes:

[0094] S101, through the water injection and monitoring bottom control unit, the single battery electrolyte monitoring and water injection device bottom control are performed; the battery water injection status information and electrolyte status information are monitored online in real time; the battery electrolyte status information includes: battery electrolyte specific gravity information, liquid level information, voltage information and temperature information;

[0095] S102, multiple water injection and monitoring bottom control units are grouped and combined to share a communication bus and a communication protocol, so as to construct a multi-layer architecture of the bottom control grouping for water injection and electrolyte monitoring of marine batteries; each marine battery compartment is configured to include 240 batteries, with a total of 10 grouped battery groups, each with 24 batteries, and 24 corresponding water injection and monitoring bottom control units share a communication bus; each communication bus can expand up to 32 nodes;

[0096] The bottom control unit for water injection and monitoring includes: a processor CPU, a water injection device, a clarinet-type liquid level sensor assembly, a density measuring device and a driving circuit, a temperature sensor, a voltage measurement module and a CAN communication interface, and a battery-powered working power supply; the CAN communication interface communicates with the grouped battery data transfer station; the liquid level in the battery is measured through the clarinet-type liquid level sensor assembly; the float of the clarinet-type liquid level sensor assembly is simultaneously rinsed with distilled water when adding water to keep the float of the clarinet-type liquid level sensor assembly clean; a bubble-reducing water outlet hole is set on the vertical wall of the clarinet-type liquid level sensor assembly shell to reduce the influence of bubbles on the liquid level sensor and maintain the working reliability of the clarinet-type liquid level sensor assembly; in order to prevent the influence of the steam drum on the measured specific gravity, the sampling port position is changed and the diameter is increased to prevent bubbles from being sucked in from the sampling port, thereby solving the influence of the steam drum on the specific gravity measurement; temperature compensation is performed through resonance tube measurement and the supporting software for resonance tube measurement to greatly reduce the density measurement error; the density measurement error is kept within 0.003mg / cm3.

[0097] The principle and effect of the above technical solution are: through the water injection and monitoring bottom control unit, the single battery electrolyte monitoring and water injection device bottom control are carried out; the battery water injection status information and electrolyte status information are monitored online in real time; the battery electrolyte status information includes: battery electrolyte specific gravity information, liquid level information, voltage information and temperature information; multiple water injection and monitoring bottom control units are grouped and combined and share the communication bus and communication protocol to build a marine battery water injection and electrolyte monitoring bottom control group combination multi-layer architecture; each marine battery compartment is configured with 240 batteries, with a total of 10 grouped battery groups, each group with 24 batteries, corresponding to 24 water injection and monitoring bottom control units sharing a communication bus; each communication bus can expand up to 32 nodes;

[0098] The bottom control unit for water injection and monitoring includes: a processor CPU, a water injection device, a clarinet-type liquid level sensor assembly, a density measuring device and a driving circuit, a temperature sensor, a voltage measurement module and a CAN communication interface, and a battery-powered working power supply; the CAN communication interface communicates with the grouped battery data transfer station; the liquid level in the battery is measured through the clarinet-type liquid level sensor assembly; the float of the clarinet-type liquid level sensor assembly is simultaneously rinsed with distilled water when adding water to keep the float of the clarinet-type liquid level sensor assembly clean; a bubble-reducing water outlet hole is set on the vertical wall of the clarinet-type liquid level sensor assembly shell to reduce the influence of bubbles on the liquid level sensor and maintain the working reliability of the clarinet-type liquid level sensor assembly; in order to prevent the influence of the steam drum on the measured specific gravity, the sampling port position is changed and the diameter is increased to prevent bubbles from being sucked in from the sampling port, thereby solving the influence of the steam drum on the specific gravity measurement; temperature compensation is performed through resonance tube measurement and the supporting software for resonance tube measurement to greatly reduce the density measurement error; the density measurement error is kept within 0.003mg / cm3;

[0099] When the clarinet-type liquid level sensor assembly detects that the liquid level reaches the set minimum liquid level, the processor CPU controls to issue a liquid level low limit alarm, indicating that water injection is required; the processor CPU controls to trigger a water injection start control signal; according to the water injection start control signal, the water injection solenoid valve of the water injection device is controlled to be connected, the water source pipeline is connected, and water injection begins;

[0100] When the clarinet-type liquid level sensor assembly detects that the liquid level reaches the set upper limit level, the processor CPU controls to send a signal to close the solenoid valve, and the status display control host computer receives the signal to close the solenoid valve, cuts off the power to the solenoid valve, and stops water injection;

[0101] When density measurement is required, the status display and control host computer sends a command signal to the water injection and monitoring bottom control unit CPU according to the density measurement command. The water injection and monitoring bottom control unit triggers the density measurement command signal, controls the connection of the diaphragm pump power supply of the density measurement device, starts the diaphragm pump, extracts the electrolyte in the battery to the resonant tube density measurement sensor of the density measurement device for density measurement, and performs temperature compensation through the resonant tube measurement supporting software to obtain density measurement data; the density measurement data is then transmitted back to the status display and control host computer, and the status display and control host computer displays the measured density result;

[0102] The working power of the water injection and monitoring bottom control unit is taken from the single battery monitored by each, and is converted to supply power to each component circuit; the battery power supply includes: battery power supply and battery power supply control power supply; the battery power supply includes 220V power supply; the battery power supply control power supply includes 24V power supply;

[0103] The temperature sensor directly measures the electrolyte temperature in the battery; the voltage measurement module measures the battery voltage in real time; the electrolyte temperature signal and the battery voltage signal are transmitted to the status display control host computer for display through water injection and monitoring of the underlying control unit CPU.

[0104] In one embodiment, S200 includes:

[0105] S201, collecting battery water filling status information and electrolyte status information in real time; communicating with the water filling and monitoring bottom control unit through the CAN communication interface;

[0106] S202, after the information data is sorted and transferred, it is transmitted to the status display and control host computer; and the status display and control host computer is communicated through the RS485 communication interface;

[0107] The grouped battery data transfer station includes: 240 batteries are configured in each battery compartment, and a total of 10 battery data transfer stations are set up; each battery data transfer station corresponds to 24 water injection and monitoring bottom control units; communication control and external 24V power supply are obtained through the data transfer processor CPU and external power supply.

[0108] The principle and effect of the above technical solution are: real-time collection of battery water filling status information and electrolyte status information; communication with the water filling and monitoring bottom control unit through the CAN communication interface; transmission to the status display and control host computer after information data sorting and transfer; communication with the status display and control host computer through the RS485 communication interface; the grouped battery data transfer station includes: 240 batteries are configured in each battery compartment, and a total of 10 battery data transfer stations are set up; each battery data transfer station corresponds to 24 water filling and monitoring bottom control units; communication control and external 24V power supply are obtained through the data transfer processor CPU and external power supply; grouped battery data is transferred through the grouped battery data transfer station, and the data transfer transmission efficiency is significantly improved.

[0109] In one embodiment, S300 includes:

[0110] S301, when density measurement is required, the status display control host computer sends a density measurement instruction to the water injection and monitoring bottom control unit for density measurement according to the density measurement instruction;

[0111] S302, the status display control host computer page is refreshed once to display the measurement result once, and the battery water filling status and electrolyte status information are displayed;

[0112] The status display and control host computer display displays the liquid level, density, voltage and temperature information of each battery in real time, the dynamic display of battery water filling, real-time clock display and time setting, and displays communication faults and battery liquid level trend charts according to query instructions; it displays the battery electrolyte specific gravity information, liquid level information, voltage information and temperature information of the entire compartment.

[0113] The principle and effect of the above technical solution are as follows: when it is necessary to measure the density, the status display and control host computer sends a density measurement instruction to the water injection and monitoring bottom control unit for density measurement according to the density measurement instruction; the status display and control host computer page refreshes once to display the measurement result once, and displays the battery water injection status and electrolyte status information; the status display and control host computer display displays the liquid level, density, voltage and temperature information of each battery in real time, the battery water injection dynamic display, real-time clock display and time setting, and displays communication faults and battery liquid level trend charts according to query instructions; displays the battery electrolyte specific gravity information, liquid level information, voltage information and temperature information of the entire compartment; the status display and control host computer includes: a processor CPU, an RS485 communication interface, a non-volatile memory, a clock chip, a display and an external power supply for the display; the RS485 communication interface communicates with the grouped battery data transfer station; the display external power supply takes External 220V power supply; a corrosion-resistant elastic sealing plate is set at the set water injection level. When the battery water injection level reaches the set water injection level, the gap under the corrosion-resistant elastic sealing plate is completely filled and sealed, and a shrinkage buffer layer is set on the corrosion-resistant elastic sealing plate; when thermal expansion and contraction occur, the corrosion-resistant elastic sealing plate undergoes slight convex and concave deformation with expansion and contraction, and maintains edge sealing through elasticity without bursting; the shrinkage buffer layer is filled with pure water, and an external circulation heat exchange is performed; the slight convex and concave deformation of the corrosion-resistant elastic sealing plate is buffered, and the short-term over-temperature heat in the battery is quickly absorbed when the battery is over-heated for a short time; when the ambient temperature is cold and the battery temperature is too low, and the storage energy drops below the set storage energy, the external circulation heat exchange flushes into the appropriate temperature pure water, so that the temperature in the battery rises slightly to the set normal energy storage temperature, and the battery storage energy is kept stable; the external circulation heat exchange, the heat is dissipated through the heat exchanger, the heating is taken from the heat dissipation of the ship engine, and the heat dissipation energy of the ship engine is recycled;

[0114] The status display control host computer receives the battery electrolyte specific gravity, liquid level, voltage and temperature information forwarded by each group battery data transfer station in real time, and updates the display data;

[0115] It also has battery status records, system information records and communication fault identification records; system information includes clock information or control information.

[0116] In one embodiment, S400 includes:

[0117] S401, adopts distributed hierarchical architecture combination grouping, the distributed hierarchical architecture combination grouping includes: 240 batteries, each group of 24 batteries is evenly divided into 10 groups, each group battery data transfer station transfers the collected data of each water injection and monitoring bottom control unit to the status display and control host computer through the CAN2.0 communication bus; the status display and control host computer and the group battery data transfer station communicate data through the RS485 communication bus;

[0118] S402, through the data transfer layered communication protocol, the status display and control host computer and the grouped battery data transfer station communicate with each other through the RS485 communication bus, using the ModBUS communication protocol; 8 bytes of data are used to represent the electrolyte level information, density information, temperature information and battery voltage information, and the RS485 communication bus baud rate between the grouped battery data transfer station and the status display and control host computer is set to 9600bps; the CAN communication bus baud rate between the grouped battery data transfer station and the water injection and monitoring bottom control unit is set to 100kbps; 10 group status information are refreshed within 1s, and all the combined group status information of the system is refreshed; the battery water injection subsystem and the electrolyte monitoring subsystem are integrated into a distributed layered water injection monitoring system.

[0119] The principle and effect of the above technical solution are as follows: a distributed hierarchical architecture is adopted for combined grouping, and the distributed hierarchical architecture combined grouping includes: 240 batteries, each group of 24 batteries is evenly divided into 10 groups, and each group battery data transfer station transfers the collected data of each water injection and monitoring bottom control unit to the status display and control host computer through the CAN2.0 communication bus; the status display and control host computer and the group battery data transfer station communicate with each other through the RS485 communication bus; through the data transfer hierarchical communication protocol, the status display and control host computer and the group battery data transfer station communicate with each other through the RS485 communication bus, using the ModBUS communication protocol; using 8 bytes of data According to the information of electrolyte level, density, temperature and battery voltage, the baud rate of RS485 communication bus between the grouped battery data transfer station and the status display and control host computer is set to 9600bps; the baud rate of CAN communication bus between the grouped battery data transfer station and the water injection and monitoring bottom control unit is set to 100kbps; 10 grouped status information are refreshed within 1s, and all combined grouped status information of the system is refreshed; the battery water injection subsystem and the electrolyte monitoring subsystem are integrated into a distributed layered water injection monitoring system; saving the weight and space of the battery support system, improving work efficiency, and being able to maintain the vitality of the marine system have great significance and significant effects.

[0120] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A marine battery water filling and electrolyte monitoring system, characterized in that: include: The marine battery water filling monitoring group control subsystem builds a multi-layer architecture for the marine battery water filling and monitoring bottom control unit combination, monitors the battery water filling status and electrolyte status in real time online, and obtains the battery water filling status information and electrolyte status information; The battery data transfer station combined subsystem transfers the grouped battery data through the grouped battery data transfer station according to the battery water filling status information and the electrolyte status information; The water injection electrolyte status display and control subsystem sends density measurement instructions through the status display and control host computer to perform density measurement, and displays and controls the battery water injection status and electrolyte status; Distributed hierarchical complete subsystem, through data transfer hierarchical communication protocol, builds a distributed hierarchical water injection monitoring complete system to carry out integrated monitoring and control of marine battery water injection status and electrolyte status; Marine battery water filling monitoring group control subsystem, including: The water injection monitoring bottom control subsystem performs single battery electrolyte monitoring and water injection device bottom control through water injection and monitoring bottom control unit; real-time online monitoring of battery water injection status information and electrolyte status information; battery electrolyte status information includes: battery electrolyte specific gravity information, liquid level information, voltage information and temperature information; The bottom control combined monitoring subsystem groups and combines multiple water injection and monitoring bottom control units and shares the communication bus and communication protocol, building a multi-layer architecture of bottom control group combination for marine battery water injection and electrolyte monitoring; each marine battery compartment is configured with 240 batteries, with a total of 10 grouped battery groups, each with 24 batteries, corresponding to 24 water injection and monitoring bottom control units sharing a communication bus; each communication bus can expand up to 32 nodes; The bottom control unit for water injection and monitoring includes: a processor CPU, a water injection device, a clarinet-type liquid level sensor assembly, a density measuring device and a driving circuit, a temperature sensor, a voltage measurement module and a CAN communication interface, and a battery-powered working power supply; the CAN communication interface communicates with the grouped battery data transfer station; the liquid level in the battery is measured through the clarinet-type liquid level sensor assembly; the float of the clarinet-type liquid level sensor assembly is simultaneously rinsed with distilled water when adding water to keep the float of the clarinet-type liquid level sensor assembly clean; a bubble-reducing water outlet hole is set on the vertical wall of the clarinet-type liquid level sensor assembly shell to reduce the influence of bubbles on the liquid level sensor and maintain the working reliability of the clarinet-type liquid level sensor assembly; in order to prevent the influence of the steam drum on the measured specific gravity, the sampling port position is changed and the diameter is increased to prevent bubbles from being sucked in from the sampling port, thereby solving the influence of the steam drum on the specific gravity measurement; temperature compensation is performed through resonance tube measurement and the supporting software for resonance tube measurement to greatly reduce the density measurement error; the density measurement error is kept within 0.003g / cm3.

2. A marine battery water injection and electrolyte monitoring system according to claim 1, characterized in that: The battery data transfer station combined subsystem includes: The front-end information data receiving subsystem collects the battery water filling status information and electrolyte status information in real time; communicates with the water filling and monitoring bottom control unit through the CAN communication interface; The rotor system in the information data sorting process is transmitted to the status display and control host computer through the information data sorting transfer; it communicates with the status display and control host computer through the RS485 communication interface; The grouped battery data transfer station includes: 240 batteries are configured in each battery compartment, and a total of 10 battery data transfer stations are set up; each battery data transfer station corresponds to 24 water injection and monitoring bottom control units; communication control and external 24V power supply are obtained through the data transfer processor CPU and external power supply.

3. A marine battery water injection and electrolyte monitoring system according to claim 1, characterized in that: The water injection electrolyte status display and control subsystem includes: Density measurement command control subsystem: when density measurement is required, the status display control host computer sends density measurement commands to the water injection and monitoring bottom control unit for density measurement according to the density measurement commands; The water injection electrolyte status display subsystem, the status display control host computer page refreshes once to display the measurement result once, and displays the battery water injection status and electrolyte status information; The status display and control host computer display displays the liquid level, density, voltage and temperature information of each battery in real time, the dynamic display of battery water filling, real-time clock display and time setting, and displays communication faults and battery liquid level trend charts according to query instructions; it displays the battery electrolyte specific gravity information, liquid level information, voltage information and temperature information of the entire compartment.

4. A marine battery water injection and electrolyte monitoring system according to claim 1, characterized in that: Distributed hierarchical complete subsystem, including: The hierarchical communication bus subsystem adopts a distributed hierarchical architecture combination grouping. The distributed hierarchical architecture combination grouping includes: 240 batteries, each group of 24 batteries is evenly divided into 10 groups. Each group battery data transfer station transfers the collected data of each water injection and monitoring bottom control unit to the status display and control host computer through the CAN2.0 communication bus; the status display and control host computer and the group battery data transfer station communicate with each other through the RS485 communication bus; The communication protocol subsystem uses the data transfer layered communication protocol. The status display and control host computer and the grouped battery data transfer station communicate with each other through the RS485 communication bus, and adopts the ModBUS communication protocol; 8 bytes of data are used to represent the electrolyte level information, density information, temperature information and battery voltage information. The baud rate of the RS485 communication bus between the grouped battery data transfer station and the status display and control host computer is set to 9600bps; the baud rate of the CAN communication bus between the grouped battery data transfer station and the water injection and monitoring bottom control unit is set to 100kbps; 10 group status information are refreshed within 1s, and all the combined group status information of the system is refreshed, and the battery water injection subsystem and the electrolyte monitoring subsystem are integrated into a distributed layered water injection monitoring system.

5. A method for water injection and electrolyte monitoring of a marine battery, characterized in that: include: S100, builds a multi-layer architecture of marine battery water filling and monitoring bottom control unit combination, monitors the battery water filling status and electrolyte status in real time online, and obtains battery water filling status information and electrolyte status information; S200, transferring the grouped battery data through a grouped battery data transfer station according to the battery water filling state information and the electrolyte state information; S300, sending a density measurement instruction through the status display control host computer to perform density measurement, and perform battery water filling status and electrolyte status display control; S400, through the data transfer layered communication protocol, integrates the battery water injection control and electrolyte monitoring system into a complete set, builds a distributed layered water injection monitoring system, and performs integrated monitoring and control of the water injection status and electrolyte status of marine batteries; S100 includes: S101, through the water injection and monitoring bottom control unit, the single battery electrolyte monitoring and water injection device bottom control are performed; the battery water injection status information and electrolyte status information are monitored online in real time; the battery electrolyte status information includes: battery electrolyte specific gravity information, liquid level information, voltage information and temperature information; S102, multiple water injection and monitoring bottom control units are grouped and combined to share a communication bus and a communication protocol, so as to construct a multi-layer architecture of the bottom control grouping for water injection and electrolyte monitoring of marine batteries; each marine battery compartment is configured to include 240 batteries, with a total of 10 grouped battery groups, each with 24 batteries, and 24 corresponding water injection and monitoring bottom control units share a communication bus; each communication bus can expand up to 32 nodes; The bottom control unit for water injection and monitoring includes: a processor CPU, a water injection device, a clarinet-type liquid level sensor assembly, a density measuring device and a driving circuit, a temperature sensor, a voltage measurement module and a CAN communication interface, and a battery-powered working power supply; the CAN communication interface communicates with the grouped battery data transfer station; the liquid level in the battery is measured through the clarinet-type liquid level sensor assembly; the float of the clarinet-type liquid level sensor assembly is simultaneously rinsed with distilled water when adding water to keep the float of the clarinet-type liquid level sensor assembly clean; a bubble-reducing water outlet hole is set on the vertical wall of the clarinet-type liquid level sensor assembly shell to reduce the influence of bubbles on the liquid level sensor and maintain the working reliability of the clarinet-type liquid level sensor assembly; in order to prevent the influence of the steam drum on the measured specific gravity, the sampling port position is changed and the diameter is increased to prevent bubbles from being sucked in from the sampling port, thereby solving the influence of the steam drum on the specific gravity measurement; temperature compensation is performed through resonance tube measurement and the supporting software for resonance tube measurement to greatly reduce the density measurement error; the density measurement error is kept within 0.003g / cm3.

6. A method for water injection and electrolyte monitoring of a marine battery according to claim 5, characterized in that: S200 includes: S201, collecting battery water filling status information and electrolyte status information in real time; communicating with the water filling and monitoring bottom control unit through the CAN communication interface; S202, after the information data is sorted and transferred, it is transmitted to the status display and control host computer; and the status display and control host computer is communicated through the RS485 communication interface; The grouped battery data transfer station includes: 240 batteries are configured in each battery compartment, and a total of 10 battery data transfer stations are set up; each battery data transfer station corresponds to 24 water injection and monitoring bottom control units; communication control and external 24V power supply are obtained through the data transfer processor CPU and external power supply.

7. A method for water injection and electrolyte monitoring of a marine battery according to claim 5, characterized in that: S300 includes: S301, when density measurement is required, the status display control host computer sends a density measurement instruction to the water injection and monitoring bottom control unit for density measurement according to the density measurement instruction; S302, the status display control host computer page is refreshed once to display the measurement result once, and the battery water filling status and electrolyte status information are displayed; The status display and control host computer display displays the liquid level, density, voltage and temperature information of each battery in real time, the dynamic display of battery water filling, real-time clock display and time setting, and displays communication faults and battery liquid level trend charts according to query instructions; it displays the battery electrolyte specific gravity information, liquid level information, voltage information and temperature information of the entire compartment.

8. A method for water injection and electrolyte monitoring of a marine battery according to claim 5, characterized in that: S400 includes: S401, adopts distributed hierarchical architecture combination grouping, the distributed hierarchical architecture combination grouping includes: 240 batteries, each group of 24 batteries is evenly divided into 10 groups, each group battery data transfer station transfers the collected data of each water injection and monitoring bottom control unit to the status display and control host computer through the CAN2.0 communication bus; the status display and control host computer and the group battery data transfer station communicate data through the RS485 communication bus; S402, through the data transfer layered communication protocol, the status display and control host computer and the grouped battery data transfer station communicate with each other through the RS485 communication bus, using the ModBUS communication protocol; 8 bytes of data are used to represent the electrolyte level information, density information, temperature information and battery voltage information, and the RS485 communication bus baud rate between the grouped battery data transfer station and the status display and control host computer is set to 9600bps; the CAN communication bus baud rate between the grouped battery data transfer station and the water injection and monitoring bottom control unit is set to 100kbps; 10 group status information are refreshed within 1s, and all the combined group status information of the system is refreshed; the battery water injection subsystem and the electrolyte monitoring subsystem are integrated into a distributed layered water injection monitoring system.

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