A low-power intelligent management system and method for a while-drilling instrument battery pack

Abstract

The application provides a low-power intelligent management system and method for a battery of a while-drilling instrument, the system comprising: a battery module composed of a plurality of single batteries arranged according to a redundancy principle, used for supplying power for the operation of the intelligent management device and the while-drilling instrument; and an intelligent management device, which is based on a set strategy to automatically control the operation of each single battery in the battery to match different working modes of the while-drilling instrument according to an output vector of a while-drilling instrument port. The intelligent management system arranged by the application can effectively realize the equal discharge control of the battery of the while-drilling instrument based on a low-power hardware architecture, overcome the defects that the discharge condition control of the battery of the instrument in the downhole operation in the prior art has limitations, can improve the service life of the battery single and the recycling rate of the battery, and can dynamically adjust the operation condition of the battery according to the real-time identification of the power supply demand of the while-drilling instrument, thereby prolonging the use time of the battery in the downhole.

Description

Technical Field

[0001] This invention relates to the field of measurement-while-drilling (MWD) instrument management technology, and in particular to a low-power intelligent management system and method for MWD instrument battery packs. Background Technology

[0002] Measurement while drilling (MWD) and logging while drilling (LWD) operations can provide various geological and directional parameters of the logging area, facilitating decision-making for wellbore trajectory adjustments and effectively improving the drilling success rate during drilling. Due to environmental factors, MWD instruments are mostly battery-powered during well operations. Once the battery is depleted, the instrument is pulled out of the well to replace the battery before continuing operation. Therefore, the real-time available battery power directly restricts the drilling speed, operation time, and the operating costs of the instrument and related equipment.

[0003] Because the rated voltage of a single battery is too low to provide the voltage required for downhole instruments to operate, drilling instruments in practical applications often use series-connected battery packs for power. However, the low recycling rate of existing battery packs and the lack of intelligent management during use lead to increased battery consumption, resulting in high operating costs for drilling instruments.

[0004] In the existing operating mechanism of drilling instruments, the output voltage of the battery pack is constant in the face of different working modes of the instrument. The output voltage is further converted or consumed by the instrument's adjustment or conversion circuit to meet the voltage requirements of different working modes of the instrument, which is not conducive to the optimized development of drilling instrument battery packs.

[0005] The information disclosed in the background section of this invention is intended only to enhance the understanding of the general background of this invention, and should not be construed as an admission or in any way implying that such information constitutes prior art known to those skilled in the art. Summary of the Invention

[0006] To address the aforementioned problems, this invention provides a low-power intelligent management system for drilling instrument battery packs. This system can improve the lifespan of individual battery cells and the recycling rate of the battery pack through discharge equalization management, thereby reducing the operating costs of the instrument. Furthermore, it can dynamically adjust the battery pack power supply mode according to the operating status of the drilling instrument, extending the battery pack's downhole operating time and reducing non-drilling operation time caused by instrument battery replacements. In one embodiment, the system includes:

[0007] The battery module consists of multiple individual batteries connected in series according to the principle of redundancy, and is used to power the operation of the intelligent management device and the drilling instrument.

[0008] The intelligent management device is connected to the working ports of the battery pack module and the drilling instrument. It is configured to automatically control the operation of each individual cell in the battery pack based on the output vector of the drilling instrument port and a set strategy to match the different working modes of the drilling instrument.

[0009] Preferably, in one embodiment, the intelligent management device includes: a connection port, an intelligent control unit, an internal voltage conversion circuit, and a clock unit;

[0010] The connection port includes an input port and an output port. The input port is connected to the output port of the drilling instrument and is used to receive the output vector of the drilling instrument. The output port is connected to each individual cell of the battery pack and is used to transmit control signals.

[0011] The intelligent control unit is connected between the input port and the output port and is configured to be powered by the battery pack to control the operating state of each individual battery relative to the battery pack module.

[0012] The clock unit uses a crystal oscillator to provide clock cycles for the operation of the intelligent control unit;

[0013] The internal voltage conversion circuit adopts a DC-DC circuit and is configured to convert the dynamic voltage provided by the battery pack into a specific voltage value to provide power to various functional structures in the intelligent management device.

[0014] Furthermore, in one embodiment, the intelligent control unit is configured to: determine the power supply demand based on the received output vector of the drilling instrument, and then generate corresponding battery control signals based on the power supply demand and the measured voltage data of each battery, and send them out through the output port to control the operating state of each individual battery relative to the battery pack module, including the connected state and the disconnected state.

[0015] Specifically, in one embodiment, the intelligent control unit adopts an MCU structure, which is configured to perform the following operations: generating control signals to achieve operation management of the individual battery cells:

[0016] Step A: Initialize all input and output ports of the intelligent management device;

[0017] Step B: Real-time acquisition of the port interrupt vector of the drilling instrument through the input port, determination of the power supply requirements of the drilling instrument corresponding to the current working mode, and determination of the output voltage value of the corresponding battery module.

[0018] Step C: Obtain the real-time measured output voltage values ​​of each individual cell;

[0019] Step D: Select a set number of batteries as the current target operating batteries by combining the output voltage value of the battery pack module and the voltage value of each individual battery cell.

[0020] Step E: Generate the corresponding connection status control signal and send it out to each target running battery through the output port;

[0021] Repeat steps B through E.

[0022] The intelligent management function includes the above-mentioned operations. Based on the working status of the drilling instrument and the voltage of each battery cell, the connection and disconnection of the battery cells in the battery pack are dynamically controlled, thereby reducing power consumption and improving battery life and recycling rate.

[0023] In an optional embodiment, the intelligent control unit is further configured to: when performing step D, select a set number of batteries as the current target operating batteries by combining the current required battery pack module output voltage value and the voltage ranking of each individual battery from high to low.

[0024] Furthermore, in one embodiment, the intelligent control unit is further configured to:

[0025] The voltage across each battery cell is periodically measured. If the difference between the highest and lowest voltages exceeds a set threshold, the battery cell with the lowest voltage is disconnected, and the battery cell with the highest voltage is selected from the remaining cells and connected to the battery pack.

[0026] In a preferred embodiment, the intelligent management device further includes an internal monitoring unit, which employs a microprocessor monitoring chip to automatically restart the intelligent management device when the program crashes, thereby ensuring the stable operation of the intelligent management device.

[0027] Based on the application aspects of the system described in any one or more of the above embodiments, the present invention also provides a low-power intelligent management method for a drilling instrument battery pack, the method comprising:

[0028] The intelligent management device initializes all its input and output ports;

[0029] By acquiring the port interrupt vector of the drilling instrument in real time through the input port, the power supply requirements of the drilling instrument corresponding to the current working mode are determined, and the output voltage value of the corresponding battery module is determined.

[0030] Obtain the real-time measured output voltage values ​​of each individual cell;

[0031] Based on the current requirements of the battery pack module output voltage and the voltage of the individual cells, a set number of batteries are selected as the current target operating batteries.

[0032] The corresponding connection status control signals are generated and sent to each target operating battery through the output port to control the operating status of each individual battery relative to the battery pack module.

[0033] Preferably, in one embodiment, the method further includes:

[0034] The intelligent management device selects a set number of batteries as the current target operating batteries by combining the output voltage value of the battery pack module and the voltage ranking of each individual battery from high to low.

[0035] Based on other aspects of the methods described in any one or more of the foregoing embodiments, the present invention also provides a storage medium storing program code capable of implementing the methods described in any one or more of the foregoing embodiments.

[0036] Compared with the closest prior art, the present invention also has the following beneficial effects:

[0037] This invention provides a low-power intelligent management system and method for a drilling instrument battery pack. The system achieves balanced discharge management of the drilling instrument battery pack through its intelligent management device. Based on the output vector of the drilling instrument port, it automatically controls the operation of each individual battery cell in the battery pack according to a set strategy to match different operating modes of the drilling instrument. While ensuring its own low-power operation, it dynamically adjusts the battery pack's operation based on the power supply requirements of the drilling instrument in real time, effectively improving the lifespan of individual battery cells and the cycle utilization rate of the battery pack, extending the battery pack's downhole operating time, reducing non-drilling operation time caused by instrument battery replacement, and extending the service life of the instrument battery pack module.

[0038] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the description, claims, and drawings. Attached Figure Description

[0039] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0040] Figure 1 This is a schematic diagram of the structure of a low-power intelligent management system for a drilling instrument battery pack provided in an embodiment of the present invention;

[0041] Figure 2 This is a schematic diagram illustrating the operating principle of a low-power intelligent management system for a drilling instrument battery pack, provided in another embodiment of the present invention. Detailed Implementation

[0042] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings and examples. Those skilled in the art will then fully understand how the present invention uses technical means to solve technical problems and achieve technical effects, and will be able to implement the present invention specifically based on the above-described implementation process. It should be noted that, as long as there is no conflict, the various embodiments and features of the present invention can be combined with each other, and the resulting technical solutions are all within the protection scope of the present invention.

[0043] Although the flowchart describes the operations as sequential processes, many of these operations can be performed in parallel, concurrently, or simultaneously. The order of the operations can be rearranged. A process can terminate when its operation is complete, but it may also have additional steps not included in the diagram. A process can correspond to a method, function, procedure, subroutine, subroutine, etc.

[0044] The term “and / or” as used herein includes any and all combinations of one or more of the associated items listed. When a unit is referred to as “connected” or “coupled” to another unit, it may be directly connected to or coupled to said other unit, or there may be an intermediate unit present.

[0045] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments. Unless the context clearly indicates otherwise, the singular forms “a” and “an” as used herein are also intended to include the plural. It should also be understood that the terms “comprising” and / or “including” as used herein specify the presence of the stated features, integers, steps, operations, units, and / or components, without excluding the presence or addition of one or more other features, integers, steps, operations, units, components, and / or combinations thereof.

[0046] Due to the environmental factors involved in Measurement While Drilling (MWD) and Logging While Drilling (LWD) operations, MWD instruments are primarily powered by batteries when deployed in the well. Once the batteries are depleted, the drill string is pulled out to replace them, and then the operation continues. Therefore, the real-time available battery power directly restricts the drilling speed, operation time, and the operating costs of the instruments and related equipment.

[0047] Because the rated voltage of a single battery is too low to provide the voltage required for downhole instruments to operate, drilling instruments in practical applications often use series-connected battery packs for power. However, the low recycling rate of existing battery packs and the lack of intelligent management during use lead to increased battery consumption, resulting in high operating costs for drilling instruments.

[0048] In the existing operating mechanism of drilling instruments, the output voltage of the battery pack is constant in the face of different working modes of the instrument. The output voltage is further converted or consumed by the adjustment or conversion circuit of the instrument to meet the voltage requirements of different working modes of the instrument. There is no reasonable output voltage management function before the voltage is output to the drilling instrument, which is not conducive to the optimized development of the drilling instrument battery pack.

[0049] In addition, some researchers have designed corresponding monitoring and management devices for drilling power supplies. For example, CN108957326A discloses a safety detection device for drilling batteries, which includes: a drilling battery physical state detection module, which is used to detect the physical state of the drilling battery and generate corresponding physical state signals; a control module, which is connected to the drilling battery physical state detection module, and is used to generate a safety state signal of the drilling battery based on the physical state signal; and an output terminal connected to the control module, which is used to connect or disconnect the electrical connection between the drilling battery and the output terminal based on the safety state signal. Although this device can control the connection status of the battery module in real time, it only relies on the physical state of the battery itself. In essence, it is a self-diagnosis and adjustment scheme for power supply module faults, and cannot improve the quality and lifespan of the drilling instrument power supply module under normal operating conditions (non-fault).

[0050] To address the aforementioned issues, this invention provides a low-power intelligent management system and method for battery packs used in drilling instruments, enabling intelligent management of the battery packs. Based on the output vector of the drilling instrument port, the system automatically controls the operation of each individual battery cell in the battery pack according to a set strategy to match different operating modes of the drilling instrument. This not only improves the lifespan of individual battery cells and the cycle utilization rate of the battery pack through discharge equalization management, thereby reducing the operating cost of the instrument, but also manages and adjusts the battery pack power supply mode through a set interface protocol. By dynamically adjusting the battery pack power supply mode according to the operating status of the drilling instrument, the system reduces power consumption, extends the single-cycle usage time and overall lifespan of the battery pack downhole, and reduces non-drilling operation time caused by instrument battery replacement.

[0051] The structure and working principle of the low-power intelligent management system according to embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Although the logical order of the operations is shown in the drawings, in some cases, the operations shown or described may be performed in a different order than that shown here.

[0052] Example 1

[0053] Figure 1 This diagram illustrates the structure of a low-power intelligent management system for a drilling instrument battery pack according to Embodiment 1 of the present invention. (Refer to...) Figure 1 It can be seen that the system includes:

[0054] The battery module consists of multiple individual batteries connected in series according to the principle of redundancy, and is used to power the operation of the intelligent management device and the drilling instrument.

[0055] The intelligent management device is connected to the working ports of the battery pack module and the drilling instrument. It is configured to automatically control the operation of each individual cell in the battery pack based on the output vector of the drilling instrument port and a set strategy to match the different working modes of the drilling instrument.

[0056] The intelligent management system provided in the above embodiments can manage and adjust the battery power supply mode through the set interface protocol, dynamically adjust the battery power supply mode according to the working status of the drilling instrument, extend the battery's downhole usage time, and reduce non-drilling operation time caused by instrument battery replacement.

[0057] In practical applications, the battery pack module is set according to the redundancy principle. If the standard voltage required by the drilling instrument needs to be powered by n battery cells in series, then the battery pack should contain n+1 battery cells to facilitate the intelligent management system to dynamically manage the battery pack.

[0058] In a preferred embodiment, the intelligent management device includes: a connection port, an intelligent control unit, an internal voltage conversion circuit, and a clock unit;

[0059] The connection port includes an input port and an output port. The input port is connected to the output port of the drilling instrument and is used to receive the output vector of the drilling instrument. The output port is connected to each individual cell of the battery pack and is used to transmit control signals.

[0060] The intelligent control unit is connected between the input port and the output port and is configured to be powered by the battery pack to control the operating state of each individual battery relative to the battery pack module.

[0061] The clock unit uses a crystal oscillator to provide clock cycles for the operation of the intelligent control unit;

[0062] The internal voltage conversion circuit adopts a DC-DC circuit and is configured to convert the dynamic voltage provided by the battery pack into a specific voltage value to provide power to various functional structures in the intelligent management device.

[0063] Specifically, in one embodiment, the intelligent control unit adopts an MCU structure and is configured to determine the power supply requirements based on the received output vector of the drilling instrument, and then generate corresponding battery control signals based on the power supply requirements and the measured voltage data of each battery, and send them out through the output port to control the operating state of each individual battery relative to the battery pack module, including the connected state and the disconnected state.

[0064] Based on the hardware structure settings in the above embodiments, the intelligent management device of the present invention consists of a connection port, an MCU, a DC-DC converter, and a crystal oscillator. The MCU is the control core of the management system, and the DC-DC converter converts the dynamic voltage provided by the battery pack into a specific voltage value to provide energy for the driving and operation of the management system hardware circuit. It can be seen that the intelligent management device of the present invention adopts a minimal hardware system and belongs to a low-power intelligent management hardware structure. While ensuring the intelligent management function, it keeps the hardware power consumption of the overall battery pack intelligent management system itself to a minimum.

[0065] Furthermore, in an optional embodiment, the intelligent management device further includes an internal monitoring unit, which employs a microprocessor monitoring chip to automatically restart the intelligent management device when the program crashes, ensuring the stable operation of the intelligent management device and preventing the MCU control program from crashing and failing to perform management functions normally, or even affecting related components.

[0066] Based on the above hardware design Figure 2 The diagram illustrates the operating principle of the low-power intelligent management system for drilling instrument battery packs provided in this embodiment of the invention. Figure 2 As shown, in one embodiment, the intelligent control unit is configured to perform the following operations: generating control signals to achieve operation management of a single battery cell:

[0067] Step A: Initialize all input and output ports of the intelligent management device;

[0068] Step B: Real-time acquisition of the port interrupt vector of the drilling instrument through the input port, determination of the power supply requirements of the drilling instrument corresponding to the current working mode, and determination of the output voltage value of the corresponding battery module.

[0069] Step C: Obtain the real-time measured output voltage values ​​of each individual cell;

[0070] Step D: Select a set number of batteries as the current target operating batteries by combining the output voltage value of the battery pack module and the voltage value of each individual battery cell.

[0071] Step E: Generate the corresponding connection status control signal and send it out to each target running battery through the output port;

[0072] Repeat steps B through E.

[0073] In actual operation, the intelligent management system of the present invention adopts the minimum hardware system with the simplest hardware architecture, which minimizes power consumption to the greatest extent. The hardware system only needs to ensure the basic management functions described in the above embodiments.

[0074] The specific operating mode is determined by the drilling instrument based on its operating status, which can reflect the corresponding different power supply requirements. The drilling instrument sets the corresponding power supply requirements by setting a specific output port high (avoiding the use of communication serial ports and commands).

[0075] Based on the above logic, the intelligent management system can adopt an interrupt mode (non-polling mode). After confirming that an interrupt has been received from a specific output port of the drilling instrument, it sets the corresponding power supply mode according to different high-level ports and determines the output power supply voltage value of the control battery pack.

[0076] The battery pack module in this invention is set according to the redundancy principle. If the standard voltage required by the drilling instrument needs to be powered by n battery cells in series, then the battery pack should contain n+1 battery cells, which facilitates the intelligent management system to dynamically manage the battery pack.

[0077] The intelligent management system initializes n+1 output ports, which can control the connection or disconnection of each battery cell in the battery pack.

[0078] The input ports of the intelligent management system are initialized, and each input port is connected to the output port of the power supply mode selection for the drilling instrument control, and can receive the corresponding port interrupt vector signal;

[0079] Simultaneously, the voltage of n+1 individual battery cells is measured in real time, and a set number of individual battery cells are selected to be connected to the battery pack through the output control port as the initial power supply voltage.

[0080] Furthermore, in one embodiment, the intelligent control unit is further configured to: when executing step D, select a set number of batteries as the current target operating batteries by combining the current required battery pack module output voltage value and the voltage ranking of each individual battery cell from high to low.

[0081] In practical applications, the voltage of n+1 individual battery cells is measured, and the n individual battery cells with the higher voltage are connected to the battery pack through the output control port as the initial power supply voltage.

[0082] The required power supply mode for the drilling instrument is determined by the received port interrupt vector. The output voltage value of the battery pack is determined according to the different power supply modes. The voltage of each battery cell is sorted by measurement. The m (m≤n) battery cells with higher voltage are connected to the battery pack through each output port.

[0083] In an optional embodiment, the intelligent control unit is further configured to:

[0084] The voltage across each battery cell is periodically measured. If the difference between the highest and lowest voltages exceeds a set threshold, the battery cell with the lowest voltage is disconnected, and the battery cell with the highest voltage is selected from the remaining cells and connected to the battery pack. This logic of periodically selecting and replacing unsuitable batteries with higher-voltage cells ensures balanced stability during battery pack operation, improves performance, and extends the lifespan of the battery pack module.

[0085] The intelligent management system described in any one or more of the above embodiments, based on its unique management device hardware architecture and intelligent management function implementation method, can intelligently manage the battery pack used by the drilling instrument based on low power consumption, realize the discharge balance management of the battery pack module, improve the life of individual battery cells and the recycling rate of the battery pack, thereby reducing the operating cost of the instrument; it can also flexibly adjust the battery pack power supply mode through the set interface protocol, dynamically adjust the battery pack power supply mode according to the working status of the drilling instrument, extend the unit working time of the battery pack and the overall downhole working time, and reduce the non-drilling operation time caused by instrument battery replacement.

[0086] In the low-power intelligent management system for drilling instrument battery packs provided in this embodiment of the invention, each module or unit structure can operate independently or in combination according to actual measurement and control requirements to achieve the corresponding technical effects.

[0087] Example 2

[0088] The above-described embodiments of the present invention have provided a detailed description of the system. Based on other aspects of the methods described in any one or more of the above embodiments, the present invention also provides a low-power intelligent management method for a drilling instrument battery pack. This system is applied to the low-power intelligent management system for a drilling instrument battery pack described in any one or more of the above embodiments. Specific embodiments are given below for detailed description.

[0089] This invention provides a low-power intelligent management method for a drilling instrument battery pack. Utilizing a specially designed low-power battery pack management hardware structure, it acquires the real-time power supply requirements of the drilling instrument and determines the connection status of each individual battery based on these requirements. This method enables balanced power consumption regulation of the entire drilling instrument battery pack during operation while ensuring low power consumption for its own operation. In a preferred embodiment, the method includes the following steps:

[0090] The intelligent management device initializes all its input and output ports;

[0091] By acquiring the port interrupt vector of the drilling instrument in real time through the input port, the power supply requirements of the drilling instrument corresponding to the current working mode are determined, and the output voltage value of the corresponding battery module is determined.

[0092] Obtain the real-time measured output voltage values ​​of each individual cell;

[0093] Based on the current requirements of the battery pack module output voltage and the voltage of the individual cells, a set number of batteries are selected as the current target operating batteries.

[0094] The corresponding connection status control signals are generated and sent to each target operating battery through the output port to control the operating status of each individual battery relative to the battery pack module.

[0095] The battery pack module is composed of multiple individual batteries connected in series according to the redundancy principle, which is used to power the operation of the intelligent management device and the drilling instrument. The intelligent management device is connected to the working port of the battery pack module and the drilling instrument, and is configured to automatically control the operation of each individual battery in the battery pack according to the output vector of the drilling instrument port and the set strategy to match the different working modes of the drilling instrument.

[0096] In practical applications, in one embodiment, the intelligent management device includes: a connection port, an intelligent control unit, an internal voltage conversion circuit, and a clock unit;

[0097] The connection port includes an input port and an output port. The input port is connected to the output port of the drilling instrument and is used to receive the output vector of the drilling instrument. The output port is connected to each individual cell of the battery pack and is used to transmit control signals.

[0098] The intelligent control unit is connected between the input port and the output port and is configured to be powered by the battery pack to control the operating state of each individual battery relative to the battery pack module.

[0099] The clock unit uses a crystal oscillator to provide clock cycles for the operation of the intelligent control unit;

[0100] The internal voltage conversion circuit adopts a DC-DC circuit and is configured to convert the dynamic voltage provided by the battery pack into a specific voltage value to provide power to various functional structures in the intelligent management device.

[0101] Furthermore, in a preferred embodiment, the intelligent management device further includes an internal monitoring unit, which employs a microprocessor monitoring chip to automatically restart the intelligent management device when the program crashes, thereby ensuring the stable operation of the intelligent management device.

[0102] Specifically, the intelligent control unit adopts an MCU structure. During the operation of the drilling instrument, after initializing all connection ports, it cyclically executes the operations described in the above embodiments. The intelligent control unit is configured to: determine the power supply requirements based on the received output vector of the drilling instrument, and then generate corresponding battery control signals based on the power supply requirements and the measured voltage data of each battery, and send them out through the output port to control the operating state of each individual battery relative to the battery pack module, including the connected state and the disconnected state.

[0103] Furthermore, in practical applications, the intelligent control unit combines the current required battery pack module output voltage value and the voltage ranking of each individual battery cell to select a set number of batteries as the current target operating batteries from high to low.

[0104] In one optional embodiment, the intelligent control unit is controlled to periodically measure the voltage across each battery cell. If the difference between the highest and lowest voltages exceeds a set threshold, the battery cell with the lowest voltage is disconnected, and the battery cell with the highest voltage among the other battery cells is selected and connected to the battery pack.

[0105] For the foregoing method embodiments, in order to simplify the description, they are all described as a series of actions. However, those skilled in the art should understand that the present invention is not limited to the described order of actions, because according to the present invention, some steps can be performed in other orders or simultaneously. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0106] It should be noted that, in other embodiments of the present invention, the method can also be combined with one or more of the above embodiments to obtain a new low-power intelligent management method for the battery pack of the drilling instrument, so as to achieve optimized control of the power consumption of the drilling instrument.

[0107] It should be noted that, based on the methods in any one or more embodiments of the present invention described above, the present invention also provides a storage medium storing program code that can implement the methods described in any one or more embodiments. When the program code is executed by the operating system, it can implement the low-power intelligent management method for the battery pack of the drilling instrument as described above.

[0108] It should be understood that the embodiments disclosed herein are not limited to the specific structures, processing steps, or materials disclosed herein, but should be extended to equivalent substitutions of these features as understood by those skilled in the art. It should also be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting.

[0109] The phrase "an embodiment" in the specification means that a specific feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the invention. Therefore, the phrase "an embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment.

[0110] While the embodiments disclosed in this invention are as described above, the content is merely for the purpose of facilitating understanding of the invention and is not intended to limit the invention. Any person skilled in the art to which this invention pertains may make any modifications and variations in form and detail of the implementation without departing from the spirit and scope disclosed herein; however, the scope of patent protection for this invention shall still be determined by the scope defined in the appended claims.

Claims

1. A low-power intelligent management system for a battery pack used in drilling instruments, characterized in that, The system includes: The battery module consists of multiple individual batteries connected in series according to the principle of redundancy, and is used to power the operation of the intelligent management device and the drilling instrument. The intelligent management device is connected to the working port of the battery pack module and the drilling instrument. It is configured to automatically control the operation of each individual battery in the battery pack according to the output vector of the drilling instrument port and the set strategy to match the different working modes of the drilling instrument. The intelligent management device includes: a connection port, an intelligent control unit, an internal voltage conversion circuit, and a clock unit; The connection port includes an input port and an output port. The input port is connected to the output port of the drilling instrument and is used to receive the output vector of the drilling instrument. The output port is connected to each individual cell of the battery pack and is used to transmit control signals. The intelligent control unit is connected between the input port and the output port and is configured to be powered by the battery pack to control the operating state of each individual battery relative to the battery pack module. The clock unit uses a crystal oscillator to provide clock cycles for the operation of the intelligent control unit; The internal voltage conversion circuit adopts a DC-DC circuit and is configured to convert the dynamic voltage provided by the battery pack into a specific voltage value to provide power to the various functional structures in the intelligent management device. The intelligent control unit is configured to: determine the power supply requirements based on the received output vector of the drilling instrument, and then generate corresponding battery control signals based on the power supply requirements and the measured voltage data of each battery, and send them out through the output port to control the operating state of each individual battery relative to the battery pack module, including the connected state and the disconnected state; the output vector of the drilling instrument adopts the port interrupt vector, and sets the corresponding power supply requirements by setting a specific output port high.

2. The system according to claim 1, characterized in that, The intelligent control unit adopts an MCU structure and is configured to perform the following operations to generate control signals to achieve operation management of individual battery cells: Step A: Initialize all input and output ports of the intelligent management device; Step B: Real-time acquisition of the port interrupt vector of the drilling instrument through the input port, determination of the power supply requirements of the drilling instrument corresponding to the current working mode, and determination of the output voltage value of the corresponding battery module. Step C: Obtain the real-time measured output voltage values ​​of each individual cell; Step D: Select a set number of batteries as the current target operating batteries by combining the output voltage value of the battery pack module and the voltage value of each individual battery cell. Step E: Generate the corresponding connection status control signal and send it out to each target running battery through the output port; Repeat steps B through E.

3. The system according to claim 2, characterized in that, The intelligent control unit is further configured to: when executing step D, select a set number of batteries as the current target operating batteries by combining the current required battery pack module output voltage value and the voltage ranking of each individual battery from high to low.

4. The system according to claim 3, characterized in that, The intelligent control unit is also configured to: The voltage across each battery cell is periodically measured. If the difference between the highest and lowest voltages exceeds a set threshold, the battery cell with the lowest voltage is disconnected, and the battery cell with the highest voltage is selected from the remaining cells and connected to the battery pack.

5. The system according to claim 1, characterized in that, The intelligent management device also includes an internal monitoring unit, which uses a microprocessor monitoring chip to automatically restart the intelligent management device when the program crashes, ensuring the stable operation of the intelligent management device.

6. A low-power intelligent management method for battery packs in drilling instruments, characterized in that, The method is implemented using the system of any one of claims 1-5, and the method includes: The intelligent management device initializes all its input and output ports; By acquiring the port interrupt vector of the drilling instrument in real time through the input port, the power supply requirements of the drilling instrument corresponding to the current working mode are determined, and the output voltage value of the corresponding battery module is determined. Obtain the real-time measured output voltage values ​​of each individual cell; Based on the current requirements of the battery pack module output voltage and the voltage of the individual cells, a set number of batteries are selected as the current target operating batteries. The corresponding connection status control signals are generated and sent to each target operating battery through the output port to control the operating status of each individual battery relative to the battery pack module.

7. The method according to claim 6, characterized in that, The method further includes: The intelligent management device selects a set number of batteries as the current target operating batteries by combining the output voltage value of the battery pack module and the voltage ranking of each individual battery from high to low.

8. A storage medium, characterized in that, The storage medium stores program code that can implement the method as described in claim 6 or 7.

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