AIS base station power intelligent monitoring system

Abstract

The utility model discloses an AIS base station power intelligent monitoring system, its characteristics are, including power supply control module, first battery state sensing module, second battery state sensing module, direct current conversion module, data analysis display and control module, remote monitoring module composition, real -time monitoring the power supply condition of AIS base station, and can automatically carry out the conversion of mains and AIS base station UPS power supply, and provide stable and reliable power supply for AIS base station, the operation state of every battery in two battery groups of AIS base station is monitored automatically, and the intelligent analysis of every battery operation data in battery group is judged, and the battery technical judgment result is given in time, and the communication interaction with the control terminal is carried out, realizes the remote intelligent monitoring of AIS base station power, and the alarm is carried out to battery temperature excessively high, the difference excessively big, overcharge, internal resistance excessively big etc, and the automatic statistics record alarm, power failure event provides the basis for the scientific maintenance of AIS power system.

Description

Technical Field

[0001] This utility model relates to the field of power monitoring technology for AIS base stations, specifically an intelligent power monitoring system for AIS base stations. Background Technology

[0002] AIS (Autonomous Identification System) is a new type of navigation aid system applied to maritime safety and communication between ships and shore, and between ships. AIS base stations are built at high points along the shore as needed, automatically receiving and broadcasting static information such as ship name, call sign, ship type, length, and beam, as well as dynamic information such as position, heading, speed, and turning speed via VHF. This effectively reduces ship collisions, improves navigation efficiency, and is of great significance for safe and economical navigation and maritime supervision. AIS base stations are powered by both mains electricity and two sets of lead-acid battery banks. When the mains electricity is normal, it is mainly powered by the mains; when the mains electricity fails, the battery banks provide power. Due to the remote locations and numerous stations, they are generally unattended, making it impossible to monitor the power supply and detailed battery operating status in real time. Furthermore, limitations in energy management technology prevent remote and scientific switching between mains power and battery banks for AIS base stations, and also hinder real-time monitoring of the technical specifications of each battery in the battery banks. The level of power management technology is mismatched with the navigation aid performance of AIS base stations, making intelligent power management an urgent need.

[0003] Currently, the main method used is to conduct on-site inspections of AIS base stations regularly to test their power supply. However, this method cannot provide information on various historical data, alarm information, and trends in battery parameter changes. It also does not cover aspects such as AIS base station power supply performance monitoring, real-time data analysis, and early intelligent warning. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide an intelligent power monitoring system for AIS base stations.

[0005] The technical solution provided by this utility model is: an intelligent monitoring system for AIS base station power supply, which adopts a modular structure and the control part is a box-type structure. Its special feature is that it includes: a power supply control module, a first battery status sensing module, a second battery status sensing module, a DC-DC conversion module, a data analysis, display and control module, and a remote monitoring module. The power supply control module includes an AC contactor, an AC relay, and a mains sampling relay; the power supply control module is installed in the power distribution box of the AIS base station equipment room; the first battery status sensing module includes a first temperature sensor, a second temperature sensor, a first current sensor, and a first battery detector; the first battery status sensing module is installed on the first battery pack box; the second battery status sensing module includes a third temperature sensor, a fourth temperature sensor, a second current sensor, and a second battery detector; the second battery status sensing module is installed on the second battery pack box; the DC-DC conversion module includes an AC switch, a DC regulated power supply, diodes, and capacitors; the DC-DC conversion module is installed in the system control box; the data analysis, display, and control module consists of a PLC, a human-machine interface, a communication unit, and an alarm module; the data analysis, display, and control module is installed in the system control box; the remote monitoring module includes a monitoring terminal; The AC contactor is connected to AC mains power, an AC relay, and a mains sampling relay, respectively; the AC relay is connected to a PLC, a first battery pack, and a second battery pack, respectively; the mains sampling relay is connected to the PLC; the first UPS is connected to the first battery pack and a static transfer switch; the second UPS is connected to the second battery pack and a static transfer switch; the first battery pack is connected to a first temperature sensor, a first current sensor, and the first UPS, respectively; the second battery pack is connected to a third temperature sensor, a second current sensor, and the second UPS, respectively; the first battery monitoring device is connected to the first temperature sensor, the second temperature sensor, the first current sensor, and the PLC, respectively; the second battery monitoring device is connected to the third temperature sensor, the fourth temperature sensor, the second current sensor, and the PLC, respectively; the static transfer switch is connected to an AC switch and an AIS base station; the AC switch is connected to a DC regulated power supply; the DC regulated power supply is connected to a diode; the diode is connected to a capacitor; the capacitor is connected to a human-machine interface, a communication unit, and the PLC, respectively; the monitoring terminal is wirelessly connected to the communication unit. The static transfer switch, the first UPS, and the second UPS are placed inside the AIS base station cabinet; the first battery pack and the second battery pack are placed inside the first battery pack box and the second battery pack box, respectively.

[0006] Furthermore, the first temperature sensor is fixed to the negative terminal of a certain battery cell in the upper part of the surface of the first battery pack; the second temperature sensor is fixed to the first battery pack casing; the third temperature sensor is fixed to the negative terminal of a certain battery cell in the upper part of the surface of the second battery pack; and the fourth temperature sensor is fixed to the second battery pack casing.

[0007] Furthermore, the human-machine interface enables human-machine dialogue, querying AC power and battery operating status, viewing various alarm information, and setting and adjusting various battery parameters.

[0008] The beneficial effects of this utility model are as follows: 1. Real-time monitoring of the mains power supply status of the AIS base station, timely and automatic switching between mains power and battery packs, recording and statistically analyzing mains power outages and power supply information to ensure stable energy supply for the AIS base station; 2. When the mains power supply to the AIS base station is normal, the charging and discharging of the battery packs is rationally allocated through time settings to maintain battery activity and extend service life; 3. Automatic monitoring of the voltage, battery temperature, ambient temperature, and other operating status of each battery in the two battery packs in the AIS base station, real-time monitoring and display of the range, standard deviation, and dispersion values ​​of the two battery packs, intelligent analysis and judgment of the operating data, and prompting battery replacement based on the judgment results; 4. Automatic statistical recording of mains power supply status and various battery alarm events, providing a basis for the scientific management and maintenance of the AIS base station power system; 5. A human-machine interface for AIS base station power management is set up, facilitating managers to query power monitoring results and make necessary settings for system parameters; 6. Real-time transmission of AIS base station power information, enabling remote monitoring; 7. Adopting a modular structural design, the overall structure is a box-type structure, connected to various components of the external AIS base station power supply through a terminal block, with a compact structure and convenient operation. Attached Figure Description

[0009] Figure 1 This is a layout block diagram of this utility model; Figure 2 This is a connection block diagram of this utility model.

[0010] In the diagram: 1. AC contactor, 2. AC relay, 3. Mains sampling relay, 4. PLC, 5. Static transfer switch, 6. First UPS, 7. Second UPS, 8. First battery pack, 9. Second battery pack, 10. First temperature sensor, 11. Second temperature sensor, 12. First current sensor, 13. First battery monitoring device, 14. AC switch, 15. DC regulated power supply, 16. Diode, 17. Capacitor, 18. Third temperature sensor, 19. Fourth temperature sensor, 20. Second current sensor, 21. Second battery monitoring device, 22. Human-machine interface, 23. Communication unit. Detailed Implementation

[0011] It should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0012] To better understand and implement this invention, the following detailed description is provided in conjunction with the accompanying drawings.

[0013] like Figure 1As shown, an intelligent power monitoring system for an AIS base station includes: a power supply control module, a first battery status sensing module, a second battery status sensing module, a DC-DC conversion module, a data analysis, display and control module, and a remote monitoring module. It adopts a modular structure, with the control section being a box-type structure connected to various components of the external AIS base station power supply via a terminal block. The power supply control module includes an AC contactor 1, an AC relay 2, and a mains power sampling relay 3. The power supply control module is installed in the power distribution box of the AIS base station equipment room, monitoring the mains power supply status in real time and transmitting the monitoring information to the data analysis, display and control module for analysis and control of the mains power supply start / stop according to the control strategy. The first battery status sensing module includes a first temperature sensor 10, a second temperature sensor 11, a first current sensor 12, and a first battery inspection device 13. The first battery status sensing module is installed on a first battery pack box, where the first temperature sensor 10 is fixed to the negative terminal of a battery in the upper middle part of the first battery pack 8, sampling and monitoring the temperature of the batteries in the battery pack. The second temperature sensor... 11 is installed outside the battery box to monitor the external temperature of the battery box. The first battery inspector 13 is connected to each battery to monitor the voltage of each battery. The first current sensor 12 monitors the battery pack current. The second battery status sensing module includes a third temperature sensor 18, a fourth temperature sensor 19, a second current sensor 20, and a second battery inspector 21. The second battery status sensing module is installed on the second battery pack box, wherein the third temperature sensor 18 is fixed to the negative terminal of a certain battery in the upper middle part of the second battery pack 9 to sample and monitor the temperature of the battery in the battery box. The fourth temperature sensor 19 is installed outside the battery box to monitor the external temperature of the battery box. The second battery inspector 21 is connected to each battery to monitor the voltage of each battery. The second current sensor 20 monitors the battery pack current. The DC-DC conversion module includes an AC switch 14, a DC regulated power supply 15, a diode 16, and a capacitor 17. The DC-DC conversion module is installed in the system control box and converts 220V AC power into stable 24V DC power to provide a stable power supply for the data analysis, display, and control module. The data analysis, display, and control module includes a PLC. 4. Human-machine interface 22, communication unit 23, alarm module; The data analysis, display and control module is installed in the system control box, which collects parameters such as AC power, battery voltage, battery current, and temperature of the AIS base station, performs parameter analysis and judgment, and displays the power operation status of the AIS base station in real time through the human-machine interface 22 and the monitoring terminal (mobile phone); The remote monitoring module includes a monitoring terminal (mobile phone), which is wirelessly connected to the communication unit; PLC 4, AC switch 14, DC regulated power supply 15, diode 16, capacitor 17, human-machine interface 22 and communication unit 23 are installed in the system control box, with the human-machine interface 22 embedded on the surface of the system control box, and the system control box is installed in a suitable location in the AIS base station equipment room; Specifically, it consists of an AC contactor 1, an AC relay 2, a mains sampling relay 3, a PLC 4, a static transfer switch 5, a first UPS 6, a second UPS 7, a first battery pack 8, a second battery pack 9, a first temperature sensor 10, a second temperature sensor 11, a first current sensor 12, a first battery monitoring device 13, an AC switch 14, a DC regulated power supply 15, a diode 16, a capacitor 17, a third temperature sensor 18, a fourth temperature sensor 19, a second current sensor 20, a second battery monitoring device 21, a human-machine interface 22, and a communication unit 23. Connect AC contactor 1 to AC mains power, AC relay 2, and mains sampling relay 3 respectively; connect AC relay 2 to PLC 4, first battery pack 8, and second battery pack 9 respectively; connect mains sampling relay 3 to PLC 4; connect first UPS 6 to first battery pack 8 and static transfer switch 5; connect second UPS 7 to second battery pack 9 and static transfer switch 5; connect first battery pack 8 to first temperature sensor 10, first current sensor 12, and first UPS 6 respectively; connect second battery pack 9 to third temperature sensor 18, second current sensor 20, and second UPS 7 respectively; connect first battery monitoring device 13 to first temperature sensor 10, second temperature sensor 11, first current sensor 12, and PLC 4 respectively; connect second battery monitoring device 21 to third temperature sensor 18, fourth temperature sensor 19, second current sensor 20, and PLC respectively. 4. Connections: Static transfer switch 5 is connected to AC switch 14 and AIS base station; AC switch 14 is connected to DC regulated power supply 15; DC regulated power supply 15 is connected to diode 16; diode 16 is connected to capacitor 17; capacitor 17 is connected to human-machine interface 22, communication unit 23, and PLC 4 respectively; the monitoring terminal and communication unit are wirelessly connected. The power supply for the AIS base station is provided by mains power and the first UPS 6, the second UPS 7, the first battery pack 8, and the second battery pack 9. Mains power is used preferentially to power the AIS base station. When the mains power fails, the system automatically switches to UPS power. The first UPS 6, the second UPS 7, and the static transfer switch 5 are installed inside the AIS base station cabinet. The first battery pack 8 and the second battery pack 9 are placed in the first battery pack box and the second battery pack box, respectively. The UPS stabilizes the voltage of the battery pack power supply to provide a stable power source for the AIS base station. The first UPS 6 and the first battery pack 8 form the main power supply unit; the second UPS 7 and the second battery pack 9 serve as the backup power supply unit. The static transfer switch 5 automatically switches between the two UPS units. Under normal conditions, the static transfer switch 5 connects the first UPS 6 and the first battery pack 8. When the first UPS reaches its discharge limit or malfunctions, the system automatically switches to the second UPS 7 and the second battery pack 9. The PLC 4 is connected to the AC relay 2, the mains sampling relay 3, the first battery inspector 13, the second battery inspector 21, the human-machine interface 22, and the communication unit 23. The first battery inspector 13 and the second battery inspector 21 transmit battery parameters and temperature parameters to the PLC 4 via RS-485 serial communication. The PLC 4 is the core of the system, with an embedded control program. Based on the program settings, it monitors and controls the AIS base station power supply and stores necessary information. It collects information from each sensor unit to understand the operating status of the AIS base station power system, records and statistically analyzes the operating conditions, makes timely judgments, and controls the start and stop of the AC mains power as needed, and protects the power system when necessary. The human-machine interface 22 is connected to the PLC 4 via the RS-232 serial communication interface. Operators can operate the PLC through the human-machine interface 22 to achieve human-machine dialogue. The human-machine interface 22 normally displays the main working status of the system as indicator lights. When operating, simply touching the screen will immediately switch to the operation interface. When there is no operation for a long time, the system will automatically switch back to the indicator light interface, which makes it convenient for managers to query battery monitoring results and alarm information and make necessary settings for system parameters. The first battery inspector 13 and the second battery inspector 21 are respectively connected to each battery in the first battery pack 8 and the second battery pack 9, collecting information from each battery in real time and transmitting it to the PLC 4 for monitoring and analysis. The real-time battery information collected includes the current and voltage measured by the first current sensor 12 and the second current sensor 20, and the ambient temperature and battery temperature measured by the first temperature sensor 10, the second temperature sensor 11, the third temperature sensor 18, and the fourth temperature sensor 19. The average value of the real-time ambient temperature measured by the second temperature sensor 11 and the fourth temperature sensor 19 is used as the ambient temperature of the AIS base station equipment room. The first current sensor 12 and the second current sensor 20 detect battery current, voltage and other parameters in real time and transmit them to PLC 4 to complete the monitoring function; AC switch 14 controls the power supply of the AIS base station power intelligent monitoring system, which also facilitates the operation management and daily maintenance of the system; The DC regulated power supply 15 is connected to the AC switch 14 and outputs 24VDC. The PLC 4, the first battery inspector 13, the second battery inspector 21 and the human-machine interface 22 in the system all need to work under 24VDC. Therefore, the system is equipped with a DC regulated power supply 15 to convert AC mains power to 24VDC. During the power switching process, the AC relay 2 will cause a brief power interruption. In order to ensure the continuous operation of the system during the interruption, a diode 16 and a capacitor 17 are set at the output terminal of the DC regulated power supply 15. Their function is to prevent the backflow of current stored in the capacitor 17 at the moment of power interruption. The capacity of the capacitor 17 should be sufficient to ensure the normal operation of the system during the brief power interruption. The communication unit 23 remotely transmits system information to the monitoring terminal (mobile phone) via SMS. Operators can also send commands to perform specific operations on the system, thereby realizing remote intelligent monitoring of the AIS base station power supply.

[0014] This utility model discloses an intelligent monitoring system for AIS base station power supply. It collects data on current, voltage, battery temperature, and ambient temperature of two sets of batteries using a first battery inspector 13 and a second battery inspector 21, and transmits this data to a PLC 4 for recording and storage. Based on battery characteristics, the system analyzes and displays values ​​such as the range, standard deviation, and dispersion of the two sets of batteries on a human-machine interface 22. The system automatically switches power according to the mains power and battery supply status, and records power outages and restorations, displaying the data on the human-machine interface 22 or a monitoring terminal (mobile phone). It can also periodically switch battery usage according to settings to ensure battery activity. The human-machine interface 22 allows for timely monitoring of the power system's operation, and control parameters can be adjusted as needed. The system's operation can also be observed on the monitoring terminal (mobile phone) via a communication unit 23. Specific operations can be performed on the system by sending commands, enabling remote intelligent monitoring of the AIS base station power supply.

[0015] It should be noted that the system monitors the power supply status of the AIS base station in real time through two methods: the on-site human-machine interface 22 and a remote terminal or mobile phone. It can automatically switch between mains power and UPS power in the AIS base station, and can also manually adjust the power supply mode at any time, which is convenient for staff to maintain and manage in various locations and provide a stable and reliable power supply for the AIS base station. Both display and control methods can automatically monitor the operating status of each battery in the two battery packs of the AIS base station and provide battery technical judgment results for the operation of each battery in the battery pack. It displays alarm information such as excessive battery temperature, excessive range, excessive charging and discharging, excessive internal resistance, and power outage. Battery parameters and power supply control strategies can also be set and adjusted through the human-machine interface 22.

[0016] The above embodiments are not intended to limit the present utility model, nor is the present utility model limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the technical solution of the present utility model are also within the protection scope of the present utility model.

Claims

1. An intelligent monitoring system for AIS base station power supply, adopting a modular structure, with the control section being an overall box-type structure, characterized in that, include: Power supply control module, first battery status sensing module, second battery status sensing module, DC-DC conversion module, data analysis, display and control module, remote monitoring module; The power supply control module includes an AC contactor, an AC relay, and a mains sampling relay; the power supply control module is installed in the power distribution box of the AIS base station equipment room; the first battery status sensing module includes a first temperature sensor, a second temperature sensor, a first current sensor, and a first battery detector; the first battery status sensing module is installed on the first battery pack box; the second battery status sensing module includes a third temperature sensor, a fourth temperature sensor, a second current sensor, and a second battery detector; the second battery status sensing module is installed on the second battery pack box; the DC-DC conversion module includes an AC switch, a DC regulated power supply, diodes, and capacitors; the DC-DC conversion module is installed in the system control box; the data analysis, display, and control module consists of a PLC, a human-machine interface, a communication unit, and an alarm module; the data analysis, display, and control module is installed in the system control box; the remote monitoring module includes a monitoring terminal; The AC contactor is connected to AC mains power, an AC relay, and a mains sampling relay, respectively. The AC relay is connected to a PLC, a first battery pack, and a second battery pack, respectively. The mains sampling relay is connected to the PLC. The first battery pack is connected to a first temperature sensor, a first current sensor, and a first UPS, respectively. The second battery pack is connected to a third temperature sensor, a second current sensor, and a second UPS, respectively. The first UPS is connected to a static transfer switch. The second UPS is connected to a static transfer switch. The first battery monitoring device is connected to a first temperature sensor, a second temperature sensor, a first current sensor, and the PLC, respectively. The second battery monitoring device is connected to a third temperature sensor, a fourth temperature sensor, a second current sensor, and the PLC, respectively. The static transfer switch is connected to an AC switch and an AIS base station. The AC switch is connected to a DC regulated power supply. The DC regulated power supply is connected to a diode. The diode is connected to a capacitor. The capacitor is connected to a human-machine interface, a communication unit, and the PLC, respectively. The monitoring terminal is wirelessly connected to the communication unit. The static transfer switch, the first UPS, and the second UPS are placed inside the AIS base station cabinet; the first battery pack and the second battery pack are placed inside the first battery pack box and the second battery pack box, respectively.

2. The intelligent monitoring system for AIS base station power supply according to claim 1, characterized in that, The first temperature sensor is fixed to the negative terminal of a battery cell in the upper part of the surface of the first battery pack; the second temperature sensor is fixed to the first battery pack housing; the third temperature sensor is fixed to the negative terminal of a battery cell in the upper part of the surface of the second battery pack; and the fourth temperature sensor is fixed to the second battery pack housing.

3. The intelligent monitoring system for AIS base station power supply according to claim 1, characterized in that, The human-machine interface enables human-machine dialogue, querying AC power and battery operating status, viewing various alarm information, and setting and adjusting various battery parameters.

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