Intelligent ship bilge water monitoring device and ship

Abstract

The utility model discloses a ship bilge water intelligent monitoring device and a ship. The ship bilge water intelligent monitoring device comprises a pressure sensor, a conductivity sensor, a microprocessor and a ship loading networking platform. Wherein the pressure sensor is arranged at the bottom of a ship bilge and used for monitoring water pressure generated by bilge water, and the output end of the pressure sensor is connected to the microprocessor; the conductivity sensor is used for detecting the conductivity value of ship bilge water, and the output end of the conductivity sensor is connected to the microprocessor; and the microprocessor is connected with the shipborne object networking platform and is used for uploading the acquired data to the shipborne object networking platform. The device has the advantages that the bilge water can be accurately and effectively monitored, and the liquid level can be accurately detected; meanwhile, the electric conductivity is used for rapidly detecting oil contamination in water, whether oil contamination exists in water or not can be accurately and rapidly recognized, discharge of ship bilge water is prohibited under the oil contamination condition, and the environment is protected.

Description

Technical Field

[0001] This utility model relates to the field of intelligent ship monitoring, and in particular to an intelligent monitoring device for ship bilge water and a ship. Background Technology

[0002] During transport, the amount of bilge water on a ship is controlled according to the amount of cargo being transported to balance the overall stability of the vessel. When transporting less cargo, more bilge water is needed, and vice versa. This ensures the ship maintains a relatively stable waterline, making transport more stable and reliable. To measure the bilge water level, current technology uses mechanical float switches for monitoring. However, this method is susceptible to false alarms due to ship movement.

[0003] Furthermore, existing technologies lack accurate and cost-effective methods for detecting oil-water mixtures in ship bilge water. Since bilge water is already contaminated with oil, direct discharge would pollute water resources. Therefore, oil-contaminated bilge water must be purified before discharge and cannot be discharged directly. Existing technologies have designed corresponding oil pollution treatment solutions, such as a novel ship bilge water treatment device with patent application number 202221482588.5, used to filter oil from ship bilge water. Filtering before discharge can protect the environment. Therefore, accurate identification of oil pollution is necessary, but existing technologies cannot achieve simple and accurate detection and identification of oil pollution in ship bilge water. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a smart monitoring device and ship for ship bilge water, which can be used to effectively monitor ship bilge water and / or monitor oil pollution in ship bilge water.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a smart monitoring device for ship bilge water, including a pressure sensor, a conductivity sensor, a microprocessor, and a shipborne Internet of Things platform;

[0006] The pressure sensor is located at the bottom of the ship's hull and is used to monitor the water pressure generated by the hull water. Its output is connected to a microprocessor.

[0007] The conductivity sensor is used to detect the conductivity value of the bilge water of the ship, and its output is connected to a microprocessor.

[0008] The microprocessor is connected to the shipborne IoT platform and is used to upload the collected data to the shipborne IoT platform.

[0009] The shipborne IoT platform includes a shipborne large screen module for displaying the collected monitoring data of bilge water.

[0010] The output of the microprocessor is connected to the alarm module, which is used to issue an alarm signal when the conductivity value is lower than the threshold.

[0011] The output of the microprocessor is connected to the drain valve of the ship's bilge water and is used to control the opening and closing of the drain valve.

[0012] The microprocessor is connected to the ship operation mode detection module, which is used to detect the current navigation status of the ship and control the signal transmission frequency between the microprocessor and the shipborne Internet of Things platform according to the navigation status.

[0013] The microprocessor is connected to the shipborne Internet of Things platform via an NB-IoT communication module.

[0014] A high-pressure water nozzle is provided around the probe of the conductivity sensor or pressure sensor, and the high-pressure water nozzle is connected to the water pump motor via a water pipe; the output terminal of the microprocessor is connected to the control terminal of the water pump motor to control the operation of the water pump motor to output high-pressure water through the high-pressure water nozzle.

[0015] A vessel that uses the aforementioned intelligent bilge water monitoring device to monitor the bilge water.

[0016] The advantages of this invention are: it can accurately and effectively monitor bilge water and accurately detect liquid levels; at the same time, it uses conductivity to quickly detect oil pollution in the water, accurately and quickly identifying whether there is oil pollution in the water, and prohibiting the discharge of bilge water in the case of oil pollution; and it sets up a system working mode to reduce energy consumption by using different sampling cycles when the ship is sailing and stationary. Attached Figure Description

[0017] The following is a brief explanation of the contents of each of the accompanying drawings and the markings in the drawings:

[0018] Figure 1 This is a schematic diagram of the system architecture of the monitoring device of this utility model. Detailed Implementation

[0019] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and the description of the preferred embodiments.

[0020] In this embodiment, to monitor the bilge water of a ship and solve the simple and low-cost problems of water level and oil pollution, this solution uses two sensors: a water pressure sensor and a conductivity sensor, to detect pressure and conductivity respectively. Water pressure and conductivity are used to characterize the bilge water level and the presence of oil pollution, thus achieving a simple detection objective indirectly. Simultaneously, the probe of the pressure sensor is placed at the bottom of the bilge to detect the water pressure generated by the water level. Even when the ship is rocking, there will be no fluctuation in the pressure signal, thus achieving accurate pressure detection. Since pressure detection represents water level, accurate water level detection is achieved. The specific solution is described below:

[0021] like Figure 1 As shown, a smart monitoring device for ship bilge water includes a pressure sensor, a conductivity sensor, a microprocessor, and a shipborne Internet of Things platform.

[0022] The pressure sensor is located at the bottom of the ship's hull and is used to monitor the water pressure generated by the water in the hull. Its output is connected to a microprocessor. The water pressure signal represents the water level data, and different water pressures correspond to different water levels.

[0023] The conductivity sensor is used to detect the conductivity value of the bilge water of a ship, and its output is connected to a microprocessor. The conductivity is used to characterize oil pollution. The conductivity will fluctuate when there is oil pollution and when there is no oil pollution. The presence or absence of oil pollution can be determined based on the difference in conductivity.

[0024] The microprocessor connects to the shipboard IoT platform to upload the collected data.

[0025] The microprocessor is implemented using an STM32 series microcontroller, which mainly controls the operation of the pressure sensor and conductivity sensor, as well as the uploading of the collected data to the shipboard IoT platform, so that monitoring personnel can easily view it.

[0026] The shipborne IoT platform includes a large onboard screen module for displaying collected monitoring data on bilge water. The platform comprises a display screen, a drive controller for the display screen, and a network module for data reception.

[0027] The microprocessor connects to the network module of the IoT platform via an NB-IoT communication module, establishing a communication connection between the microprocessor and the IoT platform to facilitate data transmission. The input of the drive controller connects to the network receiving module to receive data from the microprocessor, and the output of the drive controller connects to the display screen to show the received pressure data (water level data) and conductivity data, thus realizing the data reception and display functions of the IoT platform. The drive controller can be implemented using a computer host or server host, and the display screen can be implemented using an LED monitoring screen, installed in the monitoring room.

[0028] Because there is a fixed relationship between the water level and pressure sensors, a lookup table can be pre-calibrated. Monitoring personnel can then use the lookup table to convert the pressure data displayed on the large screen to obtain the water level data. Alternatively, the lookup table can be stored in the ROM of the microprocessor or the ROM of the drive controller. When a pressure sensor is received, the microprocessor or drive controller can use the lookup table stored in the ROM to look up the corresponding water level data and display the converted water level data directly on the screen, making it more convenient for monitoring personnel to view and use.

[0029] In a preferred embodiment, the output of the microprocessor is connected to an alarm module to issue an alarm signal when the conductivity value is below a threshold. Since different conductivity values ​​indicate whether it is pure water or an oil-water mixture, the conductivity value can be used to determine whether oil-water mixing has occurred. When the detected conductivity value is less than the set threshold, it is determined that oil contamination exists, and the alarm module issues an alarm message to provide monitoring personnel with information. The alarm module can employ various methods such as an audible and visual alarm or a display screen to show alarm information.

[0030] Upon detecting abnormal conductivity, it indicates oil-water contamination, necessitating restrictions on bilge water discharge. The microprocessor's output connects to the ship's bilge water drain valve to control its opening and closing. In the event of oil contamination, the drain valve is closed. Contamination warning logic: When the conductivity value falls below a threshold, an oil contamination alarm is triggered, and the drain valve is automatically closed.

[0031] In this solution, the microprocessor is connected to the ship operation mode detection module. This module detects the current navigation status of the ship and controls the signal transmission frequency between the microprocessor and the shipborne IoT platform based on that status. The ship operation mode detection module determines whether the ship is in navigation or berthing mode, using different signal transmission frequencies depending on the mode to achieve energy savings.

[0032] Dual-mode energy-saving control includes:

[0033] Navigation mode: High-frequency sampling (1 time / minute), data is uploaded to the shipboard IoT platform in real time;

[0034] Mooring mode: Switch to low power consumption state (1 time / hour), and use NB-IoT communication module to reduce energy consumption and transmit signals to the shipborne IoT platform.

[0035] In this embodiment, to reduce sensor monitoring anomalies caused by biofouling, high-pressure water nozzles are installed around the probes of the conductivity sensor or pressure sensor. These nozzles are connected to a water pump motor via a water pipe. The output of the microprocessor is connected to the control terminal of the water pump motor to control its operation, enabling the output of high-pressure water through the nozzles. Once the water pump motor starts, it provides pressure to the water in the pipe. The water is drawn from the reservoir by the pump motor and sprayed onto the sensor probe through the pipe and high-pressure nozzles, thus removing the biofouling. A ring of high-pressure water nozzles is installed around the sensor probe for periodic flushing to prevent biofouling.

[0036] In this embodiment, a modular installation structure is adopted for easy installation and disassembly. The sensor module and pipeline are connected by a magnetic locking device, which allows a single person to complete the replacement within 10 minutes.

[0037] In this solution, since it is applied to a marine environment, all components are made of duplex stainless steel to improve corrosion resistance and reduce corrosion.

[0038] This embodiment also provides a vessel that uses the aforementioned intelligent bilge water monitoring device to monitor the bilge water, and thus includes all the technical advantages of the intelligent bilge water monitoring device due to including all the features of the intelligent bilge water monitoring device.

[0039] Obviously, the specific implementation of this invention is not limited to the above-described methods. Any non-substantial improvements made using the inventive concept and technical solution of this invention are within the protection scope of this invention.

Claims

1. A smart monitoring device for ship bilge water, characterized in that: This includes pressure sensors, conductivity sensors, microprocessors, and shipborne IoT platforms. The pressure sensor is located at the bottom of the ship's hull and is used to monitor the water pressure generated by the hull water. Its output is connected to a microprocessor. The conductivity sensor is used to detect the conductivity value of the bilge water of the ship, and its output is connected to a microprocessor. The microprocessor is connected to the shipborne IoT platform and is used to upload the collected data to the shipborne IoT platform.

2. The intelligent monitoring device for ship bilge water as described in claim 1, characterized in that: The shipborne IoT platform includes a shipborne large screen module for displaying the collected monitoring data of bilge water.

3. The intelligent monitoring device for ship bilge water as described in claim 1, characterized in that: The output of the microprocessor is connected to the alarm module, which is used to issue an alarm signal when the conductivity value is lower than the threshold.

4. The intelligent monitoring device for ship bilge water as described in claim 1, characterized in that: The output of the microprocessor is connected to the drain valve of the ship's bilge water and is used to control the opening and closing of the drain valve.

5. A ship bilge water intelligent monitoring device as described in any one of claims 1-4, characterized in that: The microprocessor is connected to the shipborne Internet of Things platform via an NB-IoT communication module.

6. A ship bilge water intelligent monitoring device as described in any one of claims 1-4, characterized in that: A high-pressure water nozzle is provided around the probe of the conductivity sensor or pressure sensor, and the high-pressure water nozzle is connected to the water pump motor via a water pipe; the output terminal of the microprocessor is connected to the control terminal of the water pump motor to control the operation of the water pump motor to output high-pressure water through the high-pressure water nozzle.

7. A ship, characterized in that: The vessel uses the intelligent bilge water monitoring device as described in any one of claims 1-6 to monitor the bilge water.

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