Micro energy storage system based on wireless positioning

Abstract

The application discloses a micro energy storage system based on wireless positioning, a wireless positioning module positions self position information, and a wireless communication module sends self position information, a unique serial number and a working state to a centralized control center; the centralized control center establishes a database for storage, and searches and displays the corresponding position information and unique serial number under the condition that the detected working state is a fault; under the condition that both the micro energy storage units and the wireless communication module fail, the centralized control center wakes up the failed micro energy storage unit by using the wireless communication network, if the failure frequency reaches a threshold value, the corresponding micro energy storage unit is judged to be damaged, the corresponding position information and the unique serial number are searched, and the corresponding micro energy storage unit is judged to be damaged; and the centralized control center sends the position information and the unique serial number of the damaged micro energy storage unit to a mobile terminal of a worker. The maintenance difficulty of the micro energy storage system in the deployment and operation stages can be greatly reduced, the fault can be positioned more quickly, and field personnel can conveniently maintain and replace the micro energy storage system.

Description

Technical Field

[0001] The present application relates to the field of wireless communication technology, and in particular to a micro energy storage system based on wireless positioning. Background Art

[0002] The micro energy storage units required for renewable energy power generation (such as photovoltaic power generation and wind power generation) usually include battery packs and power management systems. Battery packs: Store the electrical energy generated by photovoltaic panels or wind turbines so that energy can be released during periods of insufficient power generation or peak grid demand to ensure the stability and continuity of power supply. Power Management System (PMS): Monitors the status of the battery pack, such as power level and health status, and intelligently regulates the charging and discharging process to prevent overcharging and over-discharging, extend battery life, and optimize the efficiency of the entire power generation system.

[0003] Micro energy storage units will be installed on site under each solar photovoltaic panel. Due to the huge area of ​​solar photovoltaic power stations (several square kilometers) and the huge number of photovoltaic panels (millions), when a micro energy storage unit has a problem during operation and maintenance, it is necessary to locate the problematic micro energy storage unit. Therefore, how to know which micro energy storage units may have problems during operation and maintenance requires locating the micro energy storage units. When locating, it is necessary not only to locate the micro energy storage units that report the problems, but also to locate the micro energy storage units designated by the on-site maintenance personnel. Therefore, it is a major challenge to ensure that the problematic micro energy storage units can be quickly locked in a complex environment. Summary of the invention

[0004] The purpose of this application is to overcome the existing technical defects and provide a micro energy storage system based on wireless positioning, which can greatly reduce the maintenance difficulty of the micro energy storage system during the deployment and operation stages, locate faults more quickly, and facilitate on-site personnel to repair and replace.

[0005] The purpose of this application is achieved through the following technical solutions:

[0006] In the first aspect, the present application proposes a micro energy storage system based on wireless positioning, wherein the micro energy storage system includes a centralized control center of a photovoltaic power station and a plurality of micro energy storage units connected to the centralized control center, each micro energy storage unit has an identifiable unique serial number, and each micro energy storage unit includes a wireless communication module and a wireless positioning module;

[0007] The wireless positioning module locates its own location information, and the wireless communication module sends its own location information, unique serial number and working status to the centralized control center;

[0008] The centralized control center establishes a database to store its own location information, unique serial number and working status. When the working status is detected as a fault, the corresponding location information and unique serial number are searched and displayed;

[0009] In the case that both the micro energy storage unit and the wireless communication module fail, the centralized control center uses the wireless communication network to wake up the failed micro energy storage unit. If the number of failures reaches a threshold, the corresponding micro energy storage unit is determined to be damaged, and its corresponding location information and unique serial number are found and displayed;

[0010] The centralized control center sends the location information and unique serial number of the damaged micro energy storage unit to the staff's mobile terminal.

[0011] In a possible implementation, each micro energy storage unit also includes a power management system connected to the wireless communication module and the wireless positioning module, which is used to monitor and control the operating status of the entire energy storage system, including battery charge and discharge management and protection mechanisms.

[0012] In one possible implementation, the power management system includes an MPPT and a DC-DC converter, the MPPT being used to track and adjust the output of the photovoltaic panel and obtain the maximum power point;

[0013] The DC-DC converter is responsible for adjusting the voltage level of the electrical energy so that the DC-DC converter meets the requirements of the energy storage unit or the load.

[0014] In a possible implementation, each micro energy storage unit further includes a photovoltaic panel connected to a power management system for converting solar energy into electrical energy.

[0015] In a possible implementation, each micro energy storage unit further includes a speaker connected to the power management system, which is used to issue a sound warning under the control of the power management system when the micro energy storage unit fails or requires maintenance.

[0016] In a possible implementation, each micro energy storage unit further includes a display device connected to the power management system for displaying the working status, remaining power, current load, fault code and actual location of the micro energy storage unit.

[0017] In a possible implementation, each micro energy storage unit further includes a battery pack consisting of one or more rechargeable cells for storing electrical energy and releasing it when needed.

[0018] In a possible implementation, the wireless positioning module uses a wireless positioning method including but not limited to GPS, Beidou, and radio triangulation positioning for positioning.

[0019] In a possible implementation, the wireless communication module also communicates wirelessly with a handheld terminal, which is used to set the working parameters of the micro energy storage unit, query the working status and fault status, and turn on or off the sound and light alarm signal of the micro energy storage unit.

[0020] The above-mentioned main scheme of the present application and its further options can be freely combined to form multiple schemes, all of which are schemes that can be adopted and claimed for protection in the present application; and in the present application, (non-conflicting options) options and other options can also be freely combined. After understanding the scheme of the present application, those skilled in the art can understand that there are multiple combinations based on the prior art and common knowledge, all of which are technical schemes to be protected by the present application, and they are not exhaustively listed here.

[0021] The present application discloses a micro energy storage system based on wireless positioning. The wireless positioning module locates its own location information, and the wireless communication module sends its own location information, unique serial number and working status to the centralized control center. The centralized control center establishes a database for storage, and searches for its corresponding location information and unique serial number and displays them when the working status is detected as a fault. When both the micro energy storage unit and the wireless communication module fail, the centralized control center uses the wireless communication network to wake up the faulty micro energy storage unit. If the number of failures reaches a threshold, the corresponding micro energy storage unit is determined to be damaged, and its corresponding location information and unique serial number are searched. The centralized control center sends the location information and unique serial number of the damaged micro energy storage unit to the mobile terminal of the staff. It can greatly reduce the maintenance difficulty of the micro energy storage system during the deployment and operation stages, locate faults faster, and facilitate on-site personnel to repair and replace. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A schematic diagram of a micro energy storage system based on wireless positioning proposed in an embodiment of the present application is shown.

[0024] Figure 2 A schematic structural diagram of a micro energy storage unit proposed in an embodiment of the present application is shown.

[0025] Icons: 1-centralized control center; 2-micro energy storage unit; 200-photovoltaic panel; 201-power management system; 202-wireless communication module; 203-speaker; 204-display device; 205-wireless positioning module. DETAILED DESCRIPTION

[0026] The following describes the embodiments of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. The present application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0027] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of this application.

[0028] In the existing technology, a micro energy storage unit is installed on site under each solar photovoltaic panel. Since the area of ​​the solar photovoltaic power station is huge (several square kilometers) and the number of photovoltaic panels is also huge (millions), when a micro energy storage unit has a problem during operation and maintenance, it is necessary to locate the problematic micro energy storage unit. Therefore, how to know which micro energy storage units may have problems during operation and maintenance requires locating the micro energy storage units. When locating, it is necessary not only to locate the micro energy storage units that report the problems, but also to locate the micro energy storage units designated by the on-site maintenance personnel. Therefore, it is a major challenge to ensure that the problematic micro energy storage units can be quickly locked in a complex environment.

[0029] Please refer to Figure 1 , Figure 1 A schematic diagram of a micro energy storage system based on wireless positioning proposed in an embodiment of the present application is shown, wherein the micro energy storage system includes a centralized control center 1 of a photovoltaic power station and a plurality of micro energy storage units 2 connected to the centralized control center 1, each micro energy storage unit 2 having an identifiable unique serial number, and each micro energy storage unit 2 including a wireless communication module 202 and a wireless positioning module 205;

[0030] The wireless positioning module 205 locates its own location information, and the wireless communication module 202 sends its own location information, unique serial number and working status to the centralized control center 1;

[0031] The centralized control center 1 establishes a database to store its own location information, unique serial number and working status, and searches for the corresponding location information and unique serial number and displays them when the working status is detected as a fault;

[0032] In the case that both the micro energy storage unit 2 and the wireless communication module 202 fail, the centralized control center 1 uses the wireless communication network to wake up the failed micro energy storage unit 2. If the number of failures reaches a threshold, the corresponding micro energy storage unit 2 is determined to be damaged, and its corresponding location information and unique serial number are searched and displayed;

[0033] The centralized control center 1 sends the location information and unique serial number of the damaged micro energy storage unit 2 to the mobile terminal of the staff.

[0034] The micro energy storage system proposed in the embodiment of the present application realizes efficient problem identification and maintenance scheduling through integrated wireless communication and positioning technology. When the micro energy storage unit 2 is installed, it reports its unique serial number and location information to the centralized control center 1 through wireless communication, completes registration and enters the database. The system continuously monitors the status of each unit, and the unit can actively report the problem and location when a fault is detected. For faulty units that cannot be reported autonomously, the control center determines their status by trying to wake them up, and assigns maintenance based on the database information. Maintenance personnel use positioning information and navigation to find the target unit, and the sound and light warnings of the on-site unit further assist in precise positioning. Improves fault response speed and maintenance efficiency.

[0035] Specifically, when the micro energy storage unit 2 is installed on the photovoltaic panel 200 for the first time, the worker can start the micro storage unit with a switch or a non-contact sensing device (such as a magnet). The micro storage unit starts and uses its own wireless positioning module 205 to locate, and reports its own unique serial number to the centralized control center 1 of the photovoltaic power station through the wireless communication module 202. The centralized control center 1 of the photovoltaic power station establishes a database with the unique serial numbers of all received micro energy storage units 2 and their reported location information. During the deployment and use stage of the micro energy storage unit 2, the centralized control center 1 of the photovoltaic power station continuously detects the working status of all micro energy storage units 2. If the micro energy storage unit 2 detects a fault in itself and is able to autonomously report the fault and location information through the wireless communication module 202, the centralized control center 1 can send maintenance personnel to perform on-site maintenance.

[0036] If the micro energy storage unit 2 itself has a serious fault or is damaged by external forces, it cannot report the fault and location information through the wireless communication module 202 autonomously. After failing to receive the regular reporting information of the faulty micro energy storage unit 2, the centralized control center 1 can try to wake up the unit through the wireless communication network. If it fails several times, it can be inferred that the unit is damaged. According to the serial number of the micro energy storage unit 2 and the corresponding location information stored in the database, the centralized control center 1 can send maintenance personnel to perform on-site maintenance. The centralized control center 1 can send the database location information of the faulty micro storage unit to a mobile phone or other portable device carried by the maintenance personnel with a positioning system, and the navigation software can assist the maintenance personnel in finding the faulty micro storage unit. After the maintenance personnel arrive at the scene, if the faulty micro energy storage unit 2 is still partially working, it will continue to issue sound and light warnings to assist the maintenance personnel in locating the faulty micro energy storage unit 2.

[0037] based on Figure 1 Please refer to Figure 2 , Figure 2A schematic diagram of the structure of the micro energy storage unit proposed in an embodiment of the present application is shown. Each micro energy storage unit 2 also includes a power management system 201 connected to a wireless communication module 202 and a wireless positioning module 205, which is used to monitor and control the operating status of the entire energy storage system, including battery charge and discharge management and protection mechanisms.

[0038] The power management system 201 (Power Management System, PMS) monitors the key parameters of the battery such as the charging state, current, voltage, etc. to ensure that the battery works safely and efficiently. It is also responsible for balancing the charging state of each cell in the battery pack to avoid overcharging or over-discharging of individual cells and extend the overall service life of the battery pack.

[0039] The power management system 201 includes an MPPT and a DC-DC converter. The MPPT is used to track and adjust the output of the photovoltaic panel 200 and obtain the maximum power point.

[0040] The DC-DC converter is responsible for adjusting the voltage level of the electrical energy so that the DC-DC converter meets the requirements of the energy storage unit or the load.

[0041] MPPT (maximum power point tracking) tracks and adjusts the output of the photovoltaic panel 200 to obtain the maximum power point and improve energy collection efficiency. The DC-DC converter is responsible for adjusting the voltage level of the electric energy to meet the needs of the energy storage unit or the load.

[0042] Each micro energy storage unit 2 further includes a photovoltaic panel 200 connected to a power management system 201 for converting solar energy into electrical energy.

[0043] After being optimized by MPPT, the direct current generated by the photovoltaic panel 200 will be adjusted to a voltage and current suitable for charging the battery pack through a DC-DC converter, and then the power management system 201 will intelligently control the charging process to ensure that the battery cells can store electrical energy efficiently under safe conditions.

[0044] Each micro energy storage unit 2 further includes a speaker 203 connected to the power management system 201 , which is used to issue a sound warning under the control of the power management system 201 when the micro energy storage unit 2 fails or needs maintenance.

[0045] The main function of the speaker 203 is to play a role in system maintenance and fault warning. When the micro energy storage unit 2 fails or requires maintenance, the speaker 203 will issue a sound warning under the control of the power management system 201. This helps on-site maintenance personnel quickly locate the micro energy storage unit 2 where the problem occurs, especially in environments where visual indications (such as light-emitting devices) may not be enough to attract attention, such as in poor lighting conditions or in situations where it is difficult to detect from a distance. The dual sound and light alarm mechanism can significantly improve the efficiency of fault handling and the maintenance response speed, ensuring the stable operation and timely maintenance of the system.

[0046] Each micro energy storage unit 2 further includes a display device 204 connected to the power management system 201 for displaying the working status, remaining power, current load, fault code and actual position of the micro energy storage unit 2 .

[0047] The display device 204 is for realizing intuitive status display and information feedback on site. Such display device 204 can be an LCD screen or an LED indicator matrix or a diode. When the display device 204 is an LCD screen or an LED indicator matrix, it can display key information such as the working status, remaining power, current load, fault code, etc. of the micro energy storage unit 2 in real time. When the display device 204 is a diode, it can display its actual position, which helps on-site maintenance personnel to quickly locate it.

[0048] Each micro energy storage unit 2 also includes a battery pack consisting of one or more rechargeable cells for storing electrical energy and releasing it when needed.

[0049] Rechargeable cells are the basic unit of energy storage, responsible for storing electrical energy and releasing it when needed. The design of the battery pack must ensure high energy density, long cycle life and good temperature performance to adapt to different usage environments and improve the reliability of the overall system.

[0050] The wireless positioning module 205 uses wireless positioning methods including but not limited to GPS, Beidou, and radio triangulation positioning for positioning.

[0051] The wireless communication module also communicates wirelessly with a handheld terminal, which is used to set the working parameters of the micro energy storage unit, query the working status and fault status, and turn on or off the sound and light alarm signal of a specific micro energy storage unit.

[0052] The handheld terminal carried by the maintenance personnel is equipped with a wireless communication module that can communicate directly with the micro energy storage unit or through a centralized control center. The maintenance personnel can set the working parameters of a specific energy storage unit, query the working status, fault status, and turn on or off the sound and light alarm signals of a specific micro energy storage unit by entering the unique serial number of the micro energy storage unit on site.

[0053] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0054] It can significantly reduce the maintenance difficulty of micro energy storage systems during the deployment and operation stages, locate faults more quickly, and facilitate repairs and replacements by on-site personnel.

[0055] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A micro energy storage system based on wireless positioning, characterized in that: The micro energy storage system includes a centralized control center of a photovoltaic power station and a plurality of micro energy storage units connected to the centralized control center, each micro energy storage unit has an identifiable unique serial number, and each micro energy storage unit includes a wireless communication module and a wireless positioning module; The wireless positioning module locates its own location information, and the wireless communication module sends its own location information, unique serial number and working status to the centralized control center; The centralized control center establishes a database to store its own location information, unique serial number and working status. When the working status is detected as a fault, the corresponding location information and unique serial number are searched and displayed; In the case that both the micro energy storage unit and the wireless communication module fail, the centralized control center uses the wireless communication network to wake up the failed micro energy storage unit. If the number of failures reaches a threshold, the corresponding micro energy storage unit is determined to be damaged, and its corresponding location information and unique serial number are found and displayed; The centralized control center sends the location information and unique serial number of the damaged micro energy storage unit to the staff's mobile terminal.

2. The micro energy storage system according to claim 1, characterized in that: Each micro energy storage unit also includes a power management system connected to the wireless communication module and the wireless positioning module to monitor and control the operating status of the entire energy storage system, including the battery charge and discharge management and protection mechanism.

3. The micro energy storage system according to claim 2, characterized in that: The power management system includes MPPT and DC-DC converter. MPPT is used to track and adjust the output of photovoltaic panels and obtain the maximum power point; The DC-DC converter is responsible for adjusting the voltage level of the electrical energy so that the DC-DC converter meets the requirements of the energy storage unit or the load.

4. The micro energy storage system according to claim 2, characterized in that: Each micro energy storage unit also includes photovoltaic panels connected to a power management system to convert solar energy into electrical energy.

5. The micro energy storage system according to claim 2, characterized in that: Each micro energy storage unit also includes a speaker connected to the power management system, which is used to issue an audible warning under the control of the power management system when the micro energy storage unit fails or requires maintenance.

6. The micro energy storage system according to claim 2, characterized in that: Each micro energy storage unit also includes a display device connected to the power management system for displaying the working status, remaining power, current load, fault code and actual location of the micro energy storage unit.

7. The micro energy storage system according to claim 1, characterized in that: Each micro energy storage unit also includes a battery pack consisting of one or more rechargeable cells for storing electrical energy and releasing it when needed.

8. The micro energy storage system according to claim 1, characterized in that: The wireless positioning module adopts wireless positioning methods including but not limited to GPS, Beidou, and radio triangulation for positioning.

9. The micro energy storage system according to claim 1, characterized in that: The wireless communication module also communicates wirelessly with the handheld terminal, which is used to set the working parameters of the micro energy storage unit, query the working status and fault status, and turn on or off the sound and light alarm signal of the micro energy storage unit.

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