Multi-device adjusting power supply method and device based on power management system

Abstract

The embodiment of the invention provides a multi-device power supply adjusting method and device based on a power management system, and the method comprises the steps: detecting whether a charging current remains in the power management system or not when the battery power of a local device is detected to be lower than a first preset battery power; and if not, respectively sending a charging current abdicating request to other mining intrinsic safety type amplified phone equipment in the power management system, so that other mining intrinsic safety type amplified phones with sufficient electric quantity in the power management system improve the charging current of the equipment in a mode of abdicating part of the charging current. And when it is detected that the battery electric quantity of the local equipment is higher than the second preset battery electric quantity, part of charging current is actively made to charge other mining intrinsic safety type amplified phones needing electricity in the power management system. According to the embodiment of the invention, all mining intrinsically-safe amplified phones can be ensured to keep sufficient electric quantity when needed, and meanwhile, the waste of resources is avoided.

Description

Technical Field

[0001] The present application relates to the field of charging technology, and in particular to a method and apparatus for regulating power supply of multiple devices based on a power management system. Background Art

[0002] With the continuous advancement of intelligent mining technology, mine intrinsically safe loudspeakers have gradually become an indispensable communication equipment in coal mine operations. Such equipment usually relies on built-in intrinsically safe batteries for power supply and is charged through external mine intrinsically safe power supplies to meet the energy needs of multiple devices. At present, the power management system uses a fixed value allocation method to manage the charging of mine intrinsically safe loudspeakers. In view of the limited output capacity of the mine intrinsically safe power supply in the power management system, in order to maximize the number of loads of each power supply, the charging current of the mine intrinsically safe loudspeaker is usually set to a lower level. However, this low charging current setting has caused some mine intrinsically safe loudspeakers to run out of power.

[0003] In order to solve this problem, the traditional charging method of the intrinsically safe mine-type loudspeaker phone is mainly based on the consideration of the number of loads, and a charging current is adopted that can theoretically prevent the intrinsically safe mine-type loudspeaker phone from running out of power. This theoretical value is based on the scenario of the use time of the laboratory simulation site within 24 hours. Under this simulation condition, the use frequency of the intrinsically safe mine-type loudspeaker phone is fixed. In this case, the obtained charging current can ensure that this type of intrinsically safe mine-type loudspeaker phone will not run out of power under the simulated use frequency. However, in the actual underground mine operation environment, not every intrinsically safe mine power supply can reach the full load state, which leads to a problem: the intrinsically safe mine-type loudspeaker phone with a higher frequency of use often runs out of power because the charging current is set too low, affecting its normal use; while those devices with a lower frequency of use are often in a fully charged state, resulting in a waste of available charging current.

[0004] Therefore, the prior art has defects and needs to be improved. Summary of the invention

[0005] The embodiment of the present application provides a method and apparatus for regulating power supply for multiple devices based on a power management system, which can ensure that all intrinsically safe loudspeaker telephones used in mines can maintain sufficient power when needed while avoiding waste of resources.

[0006] The embodiment of the present application provides a method for regulating power supply of multiple devices based on a power management system, wherein the power management system includes a power supply device and a plurality of intrinsically safe mine-used loudspeaker telephone devices, wherein the power supply device is used to supply power to all the intrinsically safe mine-used loudspeaker telephone devices, and the method includes:

[0007] When it is detected that the battery power of the local device is lower than the first preset battery power, checking whether there is any remaining charging current available in the power management system;

[0008] If not, respectively send a request to release the charging current to other said mining intrinsically safe type loudspeaker telephone devices in said power management system;

[0009] After receiving the response signals returned by all other mine-used intrinsically safe loudspeaker telephone devices, check whether there is any remaining charging current available in the power management system, wherein when the battery power of other mine-used intrinsically safe loudspeaker telephone devices exceeds the second preset battery power, they will give up the preset charging current, and at this time, the signal returned by the local device is received as a successful response signal;

[0010] If yes, respectively send a request for obtaining charging current to other said mining intrinsically safe loudspeaker telephone devices in said power management system;

[0011] After receiving the successful response signals returned by all other mining intrinsically safe loudspeaker telephone devices, the charging current of the local device is adjusted upward according to the first predetermined rule based on the remaining available charging current;

[0012] When it is detected that the battery power of the local device is higher than the second preset battery power, the preset charging current is actively released.

[0013] In the multi-device power supply adjustment method based on the power management system described in the embodiment of the present application, when it is detected that the battery power of the local device is lower than the first preset battery power, after checking whether there is any remaining charging current available in the power management system, it also includes:

[0014] If yes, respectively send a request for obtaining charging current to other said mining intrinsically safe loudspeaker telephone devices in said power management system;

[0015] After receiving the successful response signals returned by all other said mine-used intrinsically safe loudspeaker telephone devices, the charging current of the local device is adjusted upward according to the first predetermined rule based on the remaining available charging current.

[0016] In the multi-device power supply adjustment method based on the power management system described in the embodiment of the present application, each of the intrinsically safe mine-used loudspeaker telephone devices has a device charging information registration table, which records the power supply device type, the maximum power supply current of the intrinsically safe power supply, the device ID of each of the intrinsically safe mine-used loudspeaker telephone devices, the current charging current of each of the intrinsically safe mine-used loudspeaker telephone devices, and the current remaining available charging current in the power management system.

[0017] In the method for adjusting power supply of multiple devices based on a power management system described in an embodiment of the present application, after adjusting the charging current of the local device upward according to the first predetermined rule based on the remaining available charging current, the method further includes:

[0018] The device charging information registry of the local device is updated, and all other mine-used intrinsically safe loudspeaker telephone devices are informed of the current charging current of the local device, so that all other mine-used intrinsically safe loudspeaker telephone devices can update their corresponding device charging information registry respectively.

[0019] In the multi-device power supply adjustment method based on the power management system described in the embodiment of the present application, the current remaining available charging current is equal to the maximum power supply current of the intrinsically safe power supply minus the sum of the current charging currents of all the intrinsically safe amplified telephone devices for mining in the device charging information registration table;

[0020] The checking whether there is any remaining charging current available in the power management system includes:

[0021] Obtain a device charging information registry corresponding to the local device, and sum the current charging currents of all the mine intrinsically safe loudspeaker telephone devices in the device charging information registry;

[0022] Subtracting the maximum supply current of the intrinsically safe power supply from the summed result to generate the current remaining available charging current;

[0023] If the currently remaining available charging current is zero, it means that there is no remaining charging current available in the power management system. If the currently remaining available charging current is greater than zero, it means that there is remaining charging current available in the power management system.

[0024] In the multi-device power supply adjustment method based on the power management system described in the embodiment of the present application, if it is detected that the current remaining available charging current in the power management system is continuously zero, and there is no other intrinsically safe mining-type loudspeaker telephone equipment that gives up the charging current, the system fault information is reported to the user, informing the user that the current system power supply cannot meet the needs of use.

[0025] An embodiment of the present application also provides a multi-device power supply regulating device based on a power management system, the device includes a processor and a memory, the memory stores a computer program, and the processor calls the computer program stored in the memory to execute the multi-device power supply regulating method based on the power management system described in any of the above embodiments.

[0026] The embodiment of the present application also provides a mining intrinsically safe loudspeaker telephone device, which includes the multi-device regulating power supply device based on the power management system described in the above embodiment.

[0027] An embodiment of the present application also provides a computer-readable storage medium, in which a computer program is stored. When the computer program is run on a computer, the computer executes the multi-device power supply adjustment method based on the power management system described in any of the above embodiments.

[0028] The embodiment of the present application provides a multi-device power supply adjustment method based on a power management system. The power management system does not use a fixed value allocation method to manage the charging of the intrinsically safe mine-used loudspeaker telephone, but adjusts the charging current of the intrinsically safe mine-used loudspeaker telephone according to the power consumption of the intrinsically safe mine-used loudspeaker telephone. Specifically, when the battery power of a certain intrinsically safe mine-used loudspeaker telephone is lower than the preset battery power, other intrinsically safe mine-used loudspeaker telephones with sufficient power in the power management system increase the charging current of the intrinsically safe mine-used loudspeaker telephone by giving up part of the charging current. When the battery power of the intrinsically safe mine-used loudspeaker telephone is higher than the preset battery power, the intrinsically safe mine-used loudspeaker telephone charges other intrinsically safe mine-used loudspeaker telephones in the power management system that need power by actively giving up part of the charging current. In this way, it is ensured that all intrinsically safe mine-used loudspeaker telephones can maintain sufficient power when needed, while avoiding waste of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0030] Figure 1 A flowchart of a method for regulating power supply for multiple devices based on a power management system provided in an embodiment of the present application.

[0031] Figure 2 Another flowchart of a method for regulating power supply for multiple devices based on a power management system provided in an embodiment of the present application.

[0032] Figure 3 A schematic diagram of the structure of a multi-device power supply regulating device based on a power management system provided in an embodiment of the present application. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0034] The present application embodiment provides a method for regulating power supply of multiple devices based on a power management system. Figure 1 and Figure 2 The multi-device power supply adjustment method based on the power management system is applied to the intrinsically safe type amplified telephone equipment for mining, wherein the power management system includes a power supply device and a plurality of the intrinsically safe type amplified telephone equipment for mining, and the power supply device is used to supply power to all the intrinsically safe type amplified telephone equipment for mining. The method may include the following steps:

[0035] Step 101: When it is detected that the battery power of the local device is lower than a first preset battery power, it is checked whether there is any remaining charging current available in the power management system.

[0036] The local device may be any intrinsically safe loudspeaker telephone device for mining in the power management system.

[0037] The first preset battery power may be 30% of the full battery power, and those skilled in the art may set it according to actual conditions, and no specific limitation is made here.

[0038] Step 102: If not, a request to release charging current is sent to other said mining intrinsically safe loudspeaker telephone devices in said power management system respectively.

[0039] When it is detected that there is no remaining charging current available in the power management system, a request to release the charging current is sent to other intrinsically safe mining loudspeaker telephone devices in the power management system via the CAN bus.

[0040] Step 103, after receiving the response signals returned by all the other intrinsically safe loudspeaker telephone devices for use in mines, check whether there is any remaining charging current available in the power management system, wherein, when the battery power in the other intrinsically safe loudspeaker telephone devices for use in mines exceeds the second preset battery power, it will give up the preset charging current, and at this time, the signal returned by the local device is received as a successful response signal.

[0041] Among them, all the response signals returned by other mine-used intrinsically safe loudspeaker telephone equipment may include successful response signals and rejected response signals. The successful response signal indicates that the mine-used intrinsically safe loudspeaker telephone equipment can release the charging current, and the rejected response signal indicates that the mine-used intrinsically safe loudspeaker telephone equipment cannot release the charging current.

[0042] Among them, the second preset battery power can be 60% of the battery's full charge, and those skilled in the art can set it according to actual conditions, and no specific limitation is made here. Among them, the preset charging current refers to the part of the charging current that exceeds 30mA. For example, when the battery power of a certain mine-used intrinsically safe loudspeaker telephone device exceeds 60% of the battery's full charge, the mine-used intrinsically safe loudspeaker telephone device will return a successful response signal, and it will give up the part of the charging current that exceeds 30mA, that is, it will only retain 30mA of charging current. For another example, when the battery power of a certain mine-used intrinsically safe loudspeaker telephone device is less than 60% of the battery's full charge, the mine-used intrinsically safe loudspeaker telephone device will return a rejection response signal.

[0043] Step 104: If yes, then respectively send a request for obtaining charging current to other said mining intrinsically safe loudspeaker telephone devices in said power management system.

[0044] When there is remaining charging current available in the power management system, a request for obtaining charging current is sent to other intrinsically safe mining loudspeaker telephone devices in the power management system via the CAN bus.

[0045] Step 105, after receiving the successful response signals returned by all other mine-used intrinsically safe loudspeaker telephone devices, the charging current of the local device is adjusted upward according to the first predetermined rule based on the remaining available charging current.

[0046] Among them, the first predetermined rule is: adjust the charging current of the local device to 30mA, 40mA or 50mA. Whether it is adjusted to 30mA, 40mA or 50mA depends on the remaining available charging current value. If the remaining available charging current value is greater than or equal to 50mA, it is adjusted to 50mA; if the remaining available charging current value is greater than or equal to 40mA and less than 50mA, it is adjusted to 40mA; if the remaining available charging current value is greater than or equal to 30mA and less than 40mA, it is adjusted to 30mA, that is, it is adjusted to the configurable maximum gear according to the remaining charging current margin.

[0047] Among them, the reason why a request for obtaining charging current is first sent to other intrinsically safe mining loudspeaker telephone devices in the power management system through step 104, instead of directly adjusting the charging current of the local device upward according to the first predetermined rule based on the remaining available charging current, is to avoid conflicts: when there are multiple intrinsically safe mining loudspeaker telephone devices in the power management system and they reach the current obtaining conditions at the same time, if they all directly obtain the remaining charging current in the power management system, it may cause the power management system to overload and cause it to crash.

[0048] Step 106: When it is detected that the battery power of the local device is higher than the second preset battery power, the preset charging current is actively released.

[0049] For example, when the battery power of the local device exceeds 60% of the full battery power, the local device will actively give up the charging current exceeding 30mA, that is, it only retains 30mA of charging current.

[0050] In some embodiments, when it is detected that the battery power of the local device is lower than the first preset battery power, after checking whether there is any remaining charging current available in the power management system, the method further includes:

[0051] If yes, respectively send a request for obtaining charging current to other said mining intrinsically safe loudspeaker telephone devices in said power management system;

[0052] After receiving the successful response signals returned by all other mine-used intrinsically safe loudspeaker telephone devices, the charging current of the local device is adjusted upward according to the first predetermined rule based on the remaining available charging current.

[0053] When it is detected that there is remaining charging current available in the power management system, a request for obtaining charging current is sent to other intrinsically safe type loudspeaker telephone devices for mining in the power management system through the CAN bus. The reason why the request for obtaining charging current is sent to other intrinsically safe type loudspeaker telephone devices for mining in the power management system at this time, rather than directly adjusting the charging current of the local device upward according to the first predetermined rule based on the remaining available charging current, is to avoid conflicts: when there are multiple intrinsically safe type loudspeaker telephone devices for mining in the power management system that simultaneously reach the current obtaining condition, if they all directly obtain the remaining charging current in the power management system, it may cause the power management system to overload and crash.

[0054] Among them, the local device can adjust the charging current only after all other mine-used intrinsically safe loudspeaker telephone devices have responded successfully. If one mine-used intrinsically safe loudspeaker telephone device does not respond, there may be an abnormality and it needs to be reconfirmed for a maximum of three times. If there is no successful response for three times, the device will go into sleep mode and give up adjusting the charging current.

[0055] In some embodiments, each of the intrinsically safe mine-used loudspeaker telephone devices has a device charging information registry, which records the power supply device type, the maximum supply current of the intrinsically safe power supply, the device ID of each of the intrinsically safe mine-used loudspeaker telephone devices, the current charging current of each of the intrinsically safe mine-used loudspeaker telephone devices, and the current remaining available charging current in the power management system.

[0056] Among them, the power supply device type is used to record the type of intrinsically safe power supply device used in the power management system; the intrinsically safe power supply maximum supply current is used to record the maximum current value that can be output by the intrinsically safe power supply device in the power management system.

[0057] Among them, before starting, the device charging information registry is initialized first, and then data is exchanged with the mining intrinsically safe type loudspeaker telephone equipment under the same intrinsically safe power supply through the CAN bus, and the device information is registered in the device charging information registry inside each device.

[0058] In some embodiments, after the charging current of the local device is adjusted upward according to the first predetermined rule based on the remaining available charging current, the method further includes:

[0059] Update the device charging information registry of the local device, and inform all other mine-used intrinsically safe loudspeaker telephone devices of the current charging current of the local device, so that all other mine-used intrinsically safe loudspeaker telephone devices can update their corresponding device charging information registry respectively.

[0060] Among them, it should be noted that no matter which mine-used intrinsically safe loudspeaker telephone device in the power management system has its charging current changed, it must update its own device charging information registry, and inform all other mine-used intrinsically safe loudspeaker telephone devices in the power management system of its current charging current through broadcasting, so that all other mine-used intrinsically safe loudspeaker telephone devices can update their corresponding device charging information registry respectively. After other mine-used intrinsically safe loudspeaker telephone devices have updated their corresponding device charging information registry, they return a successful modification response. In order to prevent the device charging information registry of mine-used intrinsically safe loudspeaker telephone devices from not being updated in the power management system, all mine-used intrinsically safe loudspeaker telephone devices in the power management system need to report their charging currents regularly, and other mine-used intrinsically safe loudspeaker telephone devices update their own device charging information registry after receiving the reported information.

[0061] In some embodiments, the current remaining available charging current is equal to the maximum supply current of the intrinsically safe power supply minus the sum of the current charging currents of all the intrinsically safe amplified telephone devices for mining use in the device charging information registration table;

[0062] The checking whether there is any remaining charging current available in the power management system includes:

[0063] Obtain a device charging information registry corresponding to the local device, and sum the current charging currents of all the mine intrinsically safe loudspeaker telephone devices in the device charging information registry;

[0064] Subtracting the maximum supply current of the intrinsically safe power supply from the summed result to generate the current remaining available charging current;

[0065] If the currently remaining available charging current is zero, it means that there is no remaining charging current available in the power management system. If the currently remaining available charging current is greater than zero, it means that there is remaining charging current available in the power management system.

[0066] Specifically, the device ID is used to count the charging current of all mine-used intrinsically safe loudspeaker telephone devices. By calculating the sum of the charging currents of all mine-used intrinsically safe loudspeaker telephone devices and comparing it with the maximum output current of the intrinsically safe power supply, the current remaining available charging current in the power management system is calculated. When the mine-used intrinsically safe loudspeaker telephone device needs to obtain the charging current, it queries the current remaining available charging current. If there is a surplus, it sends a request to notify other mine-used intrinsically safe loudspeaker telephone devices how much charging current the local device needs to increase. After all mine-used intrinsically safe loudspeaker telephone devices have verified and replied, the local device can modify the charging current; after the modification is completed, it notifies other mine-used intrinsically safe loudspeaker telephone devices of the current charging current of the local device, and other mine-used intrinsically safe loudspeaker telephone devices update their own device charging information registry.

[0067] In some embodiments, if it is detected that the remaining available charging current in the power management system is continuously zero, and there is no other intrinsically safe mining loudspeaker telephone equipment that gives up the charging current, system fault information is reported to the user to inform the user that the current system power supply cannot meet the needs of use.

[0068] From the above, it can be seen that (1) the traditional charging method of the intrinsically safe mining loudspeaker telephone is mainly based on the consideration of the number of loads, and the actual frequency of use of the equipment is not included in the calculation. This approach cannot effectively solve the problem that frequently used equipment cannot be used due to power outage, and the charging current is idle due to less used equipment. Therefore, the present application proposes a new charging method, which intelligently adjusts the charging current of each device (intrinsically safe mining loudspeaker telephone) in the entire power management system based on the two dimensions of the remaining available charging current and the battery power of the device. For the mining intrinsically safe loudspeaker telephone that is not used frequently, its remaining battery power is high and is often in a fully charged state. At this time, the available charging current will be allocated to the mining intrinsically safe loudspeaker telephone that is used more frequently. This can effectively avoid the phenomenon of power outage in the mining intrinsically safe loudspeaker telephone, and also avoid the waste of available charging current. (2) This application uses a registration table to register and synchronize the information of all mining intrinsically safe loudspeaker telephone equipment, and implements the allocation of power supply current based on the software layer; obtains and releases charging current resources by sending applications, thereby avoiding the problem of overcurrent in the power supply current of the power management system; adopts a control method of increasing current when low power is high and reducing current when high power is low, which can effectively avoid the phenomenon of battery power polarization in the power management system and has the characteristic that the power supply current of each device in the system tends to a steady state with the increase of usage time. (3) This application uses a registration table lookup method to implement the allocation of power supply current, reducing the complexity of deployment; the algorithm is embedded in the power-consuming equipment, without adding additional control equipment, reducing the deployment cost; the traditional fixed current charging method has a low utilization rate of power supply, and the charging efficiency of the equipment is also low, which cannot meet the normal use of users; if PID is used to control the charging current, the system overcurrent problem is very likely to occur, causing safety hazards; this application takes into account the power utilization rate, equipment charging efficiency and system overcurrent problems at the same time, thereby realizing intelligent regulation of system power supply.

[0069] All the above optional technical solutions can be arbitrarily combined to form optional embodiments of the present application, which will not be described one by one here.

[0070] In specific implementation, the present application is not limited by the execution order of the various steps described. If no conflict occurs, some steps can be performed in other orders or simultaneously.

[0071] In summary, the multi-device power supply adjustment method based on the power management system provided in the embodiment of the present application, the power management system does not adopt a fixed value allocation method to manage the charging of the intrinsically safe loudspeaker telephone for mine use, but adjusts the charging current of the intrinsically safe loudspeaker telephone for mine use according to the power consumption of the intrinsically safe loudspeaker telephone for mine use. Specifically, when the battery power of a certain intrinsically safe loudspeaker telephone is lower than the preset battery power, other intrinsically safe loudspeakers for mine use with sufficient power in the power management system increase the charging current of the intrinsically safe loudspeaker telephone by giving up part of the charging current. When the battery power of the intrinsically safe loudspeaker telephone is higher than the preset battery power, the intrinsically safe loudspeaker telephone charges other intrinsically safe loudspeakers for mine use that need power in the power management system by actively giving up part of the charging current. In this way, it is ensured that all intrinsically safe loudspeakers for mine use can maintain sufficient power when needed, while avoiding waste of resources.

[0072] The embodiment of the present application also provides a multi-device regulating power supply device based on a power management system, and the multi-device regulating power supply device based on the power management system can be integrated into a mining intrinsically safe loudspeaker telephone device in the power management system.

[0073] See also Figure 3 , Figure 3 A schematic diagram of the structure of a multi-device regulating power supply device based on a power management system provided in an embodiment of the present application. The multi-device regulating power supply device 30 based on the power management system includes a memory 120, one or more processors 180, and one or more applications, wherein the one or more applications are stored in the memory 120 and configured to be executed by the processor 180; the memory 120 can be used to store applications and data. The application stored in the memory 120 contains executable code. The application can be composed of various functional modules. The processor 180 executes various functional applications and data processing by running the application stored in the memory 120. In addition, the memory 120 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other volatile solid-state storage device. Accordingly, the memory 120 may also include a memory controller to provide the processor 180 with access to the memory 120.

[0074] The processor 180 is the control center of the device, and uses various interfaces and lines to connect various parts of the entire terminal, and executes various functions of the device and processes data by running or executing applications stored in the memory 120, and calling data stored in the memory 120, so as to monitor the device as a whole. Optionally, the processor 180 may include one or more processing cores; preferably, the processor 180 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs.

[0075] Specifically in this embodiment, a computer program is stored in the memory 120, and the processor 180 executes the multi-device power supply adjustment method based on the power management system described in any of the above embodiments by calling the computer program stored in the memory 120.

[0076] The embodiment of the present application also provides a mining intrinsically safe loudspeaker telephone device, which includes the multi-device regulating power supply device based on the power management system described above.

[0077] An embodiment of the present application also provides a computer-readable storage medium, in which a computer program is stored. When the computer program runs on a computer, the computer executes the multi-device power supply adjustment method based on the power management system described in any of the above embodiments.

[0078] It should be noted that, for the multi-device power supply regulating method based on the power management system described in the present application, ordinary testers in the field can understand that the implementation of the whole or part of the process of the multi-device power supply regulating method based on the power management system described in the embodiment of the present application can be completed by controlling the relevant hardware through a computer program, and the computer program can be stored in a computer-readable storage medium, such as stored in the memory of the multi-device power supply regulating device based on the power management system, and executed by at least one processor in the multi-device power supply regulating device based on the power management system, and the execution process may include the process of the embodiment of the multi-device power supply regulating method based on the power management system. Among them, the storage medium can be a disk, an optical disk, a read-only memory (ROM), a random access memory (RAM), etc.

[0079] The above is a detailed introduction to the multi-device power supply adjustment method and device based on the power management system provided by the embodiment of the present application. This article uses specific examples to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core ideas of the present application; at the same time, for technicians in this field, according to the ideas of the present application, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A method for regulating power supply of multiple devices based on a power management system, wherein the power management system includes a power supply device and a plurality of intrinsically safe type amplified telephone devices for use in mines, wherein the power supply device is used to supply power to all the intrinsically safe type amplified telephone devices for use in mines, and wherein: The method comprises: When it is detected that the battery power of the local device is lower than the first preset battery power, checking whether there is any remaining charging current available in the power management system; If not, respectively send a request to release the charging current to other said mining intrinsically safe type loudspeaker telephone devices in said power management system; After receiving the response signals returned by all other mine-used intrinsically safe loudspeaker telephone devices, check whether there is any remaining charging current available in the power management system, wherein when the battery power of other mine-used intrinsically safe loudspeaker telephone devices exceeds the second preset battery power, they will give up the preset charging current, and at this time, the signal returned by the local device is received as a successful response signal; If yes, respectively send a request for obtaining charging current to other said mining intrinsically safe loudspeaker telephone devices in said power management system; After receiving the successful response signals returned by all other mining intrinsically safe loudspeaker telephone devices, the charging current of the local device is adjusted upward according to the first predetermined rule based on the remaining available charging current; When it is detected that the battery power of the local device is higher than the second preset battery power, the preset charging current is actively released.

2. The method for regulating power supply of multiple devices based on a power management system according to claim 1, characterized in that: When it is detected that the battery power of the local device is lower than the first preset battery power, after checking whether there is any remaining charging current available in the power management system, the method further includes: If yes, respectively send a request for obtaining charging current to other said mining intrinsically safe loudspeaker telephone devices in said power management system; After receiving the successful response signals returned by all other said mine-used intrinsically safe loudspeaker telephone devices, the charging current of the local device is adjusted upward according to the first predetermined rule based on the remaining available charging current.

3. The method for regulating power supply of multiple devices based on a power management system according to claim 1, characterized in that: Each of the intrinsically safe mine-used loudspeaker telephone devices has a device charging information registry, which records the power supply device type, the maximum supply current of the intrinsically safe power supply, the device ID of each of the intrinsically safe mine-used loudspeaker telephone devices, the current charging current of each of the intrinsically safe mine-used loudspeaker telephone devices, and the current remaining available charging current in the power management system.

4. The method for regulating power supply of multiple devices based on a power management system according to claim 3, characterized in that: After the charging current of the local device is adjusted upward according to the first predetermined rule based on the remaining available charging current, the method further includes: The device charging information registry of the local device is updated, and all other mine-used intrinsically safe loudspeaker telephone devices are informed of the current charging current of the local device, so that all other mine-used intrinsically safe loudspeaker telephone devices can update their corresponding device charging information registry respectively.

5. The method for regulating power supply of multiple devices based on a power management system according to claim 3, characterized in that: The current remaining available charging current is equal to the maximum power supply current of the intrinsically safe power supply minus the sum of the current charging currents of all the intrinsically safe amplified telephone devices for mining in the device charging information registration table; The checking whether there is any remaining charging current available in the power management system includes: Obtain a device charging information registry corresponding to the local device, and sum the current charging currents of all the mine intrinsically safe loudspeaker telephone devices in the device charging information registry; Subtracting the maximum supply current of the intrinsically safe power supply from the summed result to generate the current remaining available charging current; If the currently remaining available charging current is zero, it means that there is no remaining charging current available in the power management system. If the currently remaining available charging current is greater than zero, it means that there is remaining charging current available in the power management system.

6. The method for regulating power supply of multiple devices based on a power management system according to claim 3, characterized in that: If it is detected that the remaining available charging current in the power management system is continuously zero and there is no other intrinsically safe mining loudspeaker telephone equipment that can yield charging current, system fault information is reported to the user to inform the user that the current system power supply cannot meet the needs of use.

7. A multi-device power supply regulating device based on a power management system, characterized in that: The device includes a processor and a memory, wherein a computer program is stored in the memory, and the processor is used to execute the multi-device power supply adjustment method based on a power management system as described in any one of claims 1 to 6 by calling the computer program stored in the memory.

8. A mining intrinsically safe loudspeaker telephone device, characterized in that: The intrinsically safe loudspeaker telephone equipment for use in mines includes the multi-device regulating power supply device based on the power management system as described in claim 7.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed on a computer, the computer executes the method for regulating power supply of multiple devices based on a power management system according to any one of claims 1 to 6.

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