Power supply method and apparatus, network device, and readable storage medium

Abstract

The present invention provides a power supply method and apparatus, a network device, and a readable storage medium. The method comprises: calculating and obtaining a real-time power supply efficiency of a far-end device according to detection information of the far-end device; determining, according to a preset power supply efficiency and the real-time power supply efficiency, output parameters of a power source for supplying power to the far-end device; and adjusting input power supply parameters of the far-end device according to the output parameters of the power source. The real-time power supply efficiency of the far-end device is calculated and obtained by means of the detection information of the far-end device, so that whether the far-end device reaches an optimal power supply efficiency can be dynamically detected; dynamic control of the input power supply parameters of the far-end device is implemented, unsafe factors due to frequent fluctuations in the load of the far-end device are reduced, the safe and efficient operation of the far-end device is ensured, the interruption of a communication network is avoided, and the power supply safety of the communication network is improved.

Description

Power supply method, device, network equipment and readable storage medium

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This disclosure claims priority to a Chinese patent application filed with the State Intellectual Property Office on July 10, 2020, with application number 202010663233.5 and invention name “Power supply method, device, network device and readable storage medium”. The entire contents of the application are incorporated by reference into this disclosure. Technical Field

[0003] The embodiments of the present disclosure relate to, but are not limited to, the field of communication technologies, and particularly to a power supply method, apparatus, network equipment, and readable storage medium. Background Art

[0004] Communication power supplies mostly use basic power supplies (for example, 48V power supplies), which invert and boost the voltage of the 48V power supply and then convert it into a high-voltage DC voltage for use by remote devices. During the voltage conversion process, the energy efficiency is usually only around 80%, resulting in a large energy loss. Before the fifth generation mobile communication technology (5th Generation Mobile Networks, 5G), due to the small amount of base station data and the smaller number of remote base stations (i.e., base stations that provide suitable power for remote devices), the problem of voltage energy consumption was not prominent. However, with the development of 5G, the number of remote base stations has increased exponentially, causing the problem of voltage energy consumption to become increasingly prominent. Through statistics on network failures, it can be seen that the reasons for the interruption of 5G communication networks are mostly related to power supply, making it impossible to guarantee communication security.

[0005] Currently, power line communication (PLC) is often used between remote devices and remote power supplies to remote base stations. This can easily lead to the input voltage of the remote device failing to meet its power supply requirements, affecting the power supply security of the communication network.

[0006] Summary of the Invention

[0007] The present disclosure provides a power supply method, apparatus, network device and readable storage medium for solving the problem of communication network interruption and poor communication security caused by the inability of a remote power supply for a remote base station to provide appropriate power to a remote device in a timely manner.

[0008] An embodiment of the present disclosure provides a power supply method, which includes: calculating and obtaining the real-time power supply efficiency of the remote device based on detection information of the remote device; determining the power output parameters for supplying power to the remote device based on the preset power supply efficiency and the real-time power supply efficiency; and adjusting the input power supply parameters of the remote device based on the power output parameters.

[0009] An embodiment of the present disclosure provides a power supply device, including: a calculation module, configured to calculate and obtain the real-time power supply efficiency of a remote device based on detection information of the remote device; a determination module, configured to determine the power output parameters for supplying power to the remote device based on a preset power supply efficiency and a real-time power supply efficiency; and an adjustment module, configured to adjust the input power supply parameters of the remote device based on the power output parameters.

[0010] An embodiment of the present disclosure provides a network device, comprising: one or more processors; a memory on which one or more programs are stored. When the one or more programs are executed by the one or more processors, the one or more processors implement any one of the power supply methods in the embodiments of the present disclosure.

[0011] An embodiment of the present disclosure provides a readable storage medium, which stores a computer program. When the computer program is executed by a processor, any one of the power supply methods in the embodiments of the present disclosure is implemented.

[0012] According to the power supply method, device, network device and readable storage medium of the embodiments of the present disclosure, the real-time power supply efficiency of the remote device is calculated through the detection information of the remote device, so that it is possible to dynamically detect whether the remote device has achieved the optimal power supply efficiency; the power output parameters output to the remote device are determined based on the preset power supply efficiency and the real-time power supply efficiency, so that the input power supply parameters of the remote device can be adjusted according to the power output parameters to achieve dynamic control of the input power supply parameters of the remote device, reduce the unsafe factors caused by frequent load fluctuations of the remote device, ensure the safe and efficient operation of the remote device, avoid communication network interruption, and improve the power supply security of the communication network.

[0013] With respect to the above embodiments and other aspects of the present disclosure and their implementation, further description is provided in the accompanying drawings, detailed description and claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] FIG1 shows a block diagram of a conventional power supply system.

[0015] FIG2 is a schematic flow chart showing a power supply method in an embodiment of the present disclosure.

[0016] FIG3 is a flow chart showing a method for determining power supply output parameters in an exemplary embodiment of the present disclosure.

[0017] FIG4 shows a block diagram of a power supply system according to an embodiment of the present disclosure.

[0018] FIG5 a shows a schematic structural diagram of a second power supply in an embodiment of the present disclosure.

[0019] FIG5 b shows a schematic structural diagram of a second power supply in yet another embodiment of the present disclosure.

[0020] FIG6 shows a block diagram of a power supply system in another embodiment of the present disclosure.

[0021] FIG7 shows a block diagram of a power supply system in yet another embodiment of the present disclosure.

[0022] FIG8 shows an efficiency fitting curve in an embodiment of the present disclosure.

[0023] FIG9 is a diagram showing the effect of the output supply voltage of the control power supply in an embodiment of the present disclosure.

[0024] FIG10 shows a schematic structural diagram of a power supply device provided in an embodiment of the present invention.

[0025] FIG. 11 shows a structural diagram of an exemplary hardware architecture of an electronic device capable of implementing the power supply method and apparatus according to an embodiment of the present invention. DETAILED DESCRIPTION

[0026] To make the objectives, technical solutions and advantages of the present disclosure more clearly understood, the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. It should be noted that, unless there is a conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other in any manner.

[0027] Figure 1 shows a block diagram of a conventional power supply system. As shown in Figure 1, the conventional power supply system connects a first power supply 110 and a second power supply 120 in series, and supplies power to a remote device 140 via a conductive cable 130. The first power supply 110 includes a rectifier module 111, and the second power supply 120 includes a boost module 121.

[0028] When the first power supply 110 and the second power supply 120 operate in series, if the boost module 121 in the second power supply 120 fails, the entire power supply system will experience a power outage, making it impossible to ensure the reliability of the system's power supply. Furthermore, when the boost module 121 does not boost a high voltage and operates while carrying a load, additional power loss in the power supply system is increased. In a communication system, because power line communication is often used between the remote device 140 and the remote power supply (e.g., the first power supply 110 and the second power supply 120) supplying the remote base station, the power supply voltage output to the remote device 140 cannot be adjusted in real time, resulting in the input voltage of the remote device 140 being unable to meet the power supply requirements of the remote device 140. When the line load between the remote device 140 and the remote power supply supplying the remote base station fluctuates significantly, the input voltage of the remote device 140 may exceed the maximum withstand voltage of the remote device 140, which can easily damage the remote device 140 and affect the power supply security of the communication network.

[0029] Figure 2 shows a schematic flow chart of a power supply method according to an embodiment of the present disclosure. The power supply method can be applied to a power supply device, which can be provided in a base station. As shown in Figure 2, the power supply method according to an embodiment of the present disclosure can include the following steps.

[0030] Step 210: Calculate and obtain the real-time power supply efficiency of the remote device based on the detection information of the remote device.

[0031] The remote device may be a remote radio unit (RRU), an active antenna unit (AAU), or other communication equipment. The above description of the remote device is merely an example. Other remote devices not described herein are also within the scope of protection of this disclosure and may be configured based on specific circumstances. These descriptions are omitted here.

[0032] In a specific implementation, before step 210, the method further includes: dynamically monitoring power supply parameters between the power supply device and the remote device to obtain detection information.

[0033] By dynamically monitoring the power supply parameters between the power supply device and the remote device, the remote device's operating status can be obtained in a timely manner to confirm whether the remote device is receiving power parameters that meet its power supply requirements. If the input power parameters of the remote device cannot meet its power supply requirements, the power supply device can promptly calculate the remote device's real-time power supply efficiency based on the detection information. This can accurately determine whether the remote device's real-time power supply efficiency meets its power supply requirements, providing a reference for adjusting the output power supply parameters.

[0034] In an exemplary embodiment, dynamically monitoring the power supply parameters between the power supply apparatus and the remote device and obtaining detection information can be achieved by sending a detection instruction to the remote device; and obtaining detection information in response to a detection response returned by the remote device.

[0035] In an exemplary embodiment, the detection information includes the input power supply parameters of the remote device and the model of the remote device. For example, the input power supply parameters may include input power supply voltage, input power supply current, etc. The model of the remote device can be used to know the working channel of the remote device, how many RF channels the remote device has, the output power of the RF port of each RF channel, and other information, thereby knowing the amount of power consumed by the remote device during normal operation, and providing the remote device with appropriate power output parameters as a reference. The above detection information is only an example to illustrate, and other unexplained detection information is also within the scope of protection of this disclosure and can be set according to specific circumstances, so it will not be repeated here.

[0036] Step 220 : Determine the power output parameters for supplying power to the remote device according to the preset power efficiency and the real-time power efficiency.

[0037] In one exemplary embodiment, the preset power supply efficiency can be a pre-set parameter or a value obtained through big data analysis. By comparing the real-time power supply efficiency with the preset power supply efficiency, it is possible to determine whether the remote device is operating properly or whether there are unnecessary power-consuming loads. Based on different situations, the power supply is adjusted to determine the power output parameters for the remote device. For example, the power output parameters may include power supply output voltage, voltage output current, and other parameters.

[0038] Step 230: Adjust the input power supply parameters of the remote device according to the power output parameters.

[0039] For example, by using the power output parameters, the input power supply parameters of the remote device can be increased (for example, the input power supply voltage of the remote device can be increased) so that the remote device can ensure safe and efficient operation; or, by using the power output parameters, the input power supply parameters of the remote device can be reduced to reduce unnecessary power loss and improve power supply efficiency.

[0040] According to the power supply method of the embodiment of the present disclosure, the real-time power supply efficiency of the remote device is calculated based on the detection information of the remote device, so that it is possible to dynamically detect whether the remote device has achieved the optimal power supply efficiency; the power output parameters output to the remote device are determined based on the preset power supply efficiency and the real-time power supply efficiency, so that the input power supply parameters of the remote device can be adjusted according to the power output parameters to achieve dynamic control of the input power supply parameters of the remote device, reduce the unsafe factors caused by the frequent load fluctuations of the remote device, ensure the safe and efficient operation of the remote device, avoid communication network interruption, and improve the power supply security of the communication network.

[0041] In one embodiment, before step 210, the method further includes:

[0042] Step 240: Obtain the real-time power supply current and the equivalent impedance of the conductive cable.

[0043] In one exemplary embodiment, the conductive cable is a cable connected to a remote device. For example, the conductive cable can be made of silver, copper, aluminum, or other materials and is used to electrically connect to the remote device so that the remote device can obtain the supply voltage or current output by the power supply. The real-time supply current can be obtained by performing real-time measurements on the circuit using an automatic measuring instrument (or meter).

[0044] In a specific implementation, step 240 can be implemented in the following manner: obtaining the real-time power supply current; calculating the equivalent impedance of the conductive cable based on the resistivity of the conductive cable and the length of the cable; or calculating the equivalent impedance of the conductive cable based on the current current of the conductive cable and the voltage difference across the conductive cable.

[0045] For example, the equivalent impedance R of a conductive cable is calculated based on its resistivity ρ and length L, i.e., R = ρ * L. For example, the resistivity of copper wire is 1.72 * 10^(-8) Ω / m; the resistivity of aluminum wire is 2.9 * 10^(-8) Ω / m, and so on. Conductive cables made of different materials have different resistivities. If the difference between the voltage at the input end of a conductive cable and the voltage at the output end of the conductive cable is ΔU, and the current flowing through the conductive cable is I, then the equivalent impedance R of the conductive cable is ΔU / I.

[0046] Through the above different methods, the equivalent impedance of the conductive cable is calculated and written into the electrically erasable programmable read-only memory (EEPROM). This allows the EEPROM to obtain the equivalent impedance of the conductive cable in real time, facilitating the dynamic calculation of the power loss in the conductive cable.

[0047] Step 250 : Calculate and obtain the power supply voltage of the conductive cable according to the equivalent impedance of the conductive cable and the real-time power supply current.

[0048] The equivalent impedance of the conductive cable is calculated using its parameters. Combined with the real-time supply current, the cable's supply voltage can be calculated, reflecting the power consumed by the cable. Combined with the real-time power output parameters of the power supply, the input power parameters of the remote device can be adjusted in a timely manner, achieving dynamic control of the remote device's input power parameters. This reduces unsafe factors caused by frequent load fluctuations on the remote device, ensures safe and efficient operation of the remote device, and improves the power supply security of the communication network.

[0049] FIG3 is a flow chart of a method for determining power supply output parameters according to an embodiment of the present disclosure. As shown in FIG3 , step 220 can be implemented in the following manner, including steps 221 to 222 .

[0050] In step 221 , if it is determined that the real-time power supply efficiency is less than the preset power supply efficiency, the input power supply voltage of the remote device is determined according to the real-time power supply current.

[0051] For example, when the real-time power supply efficiency of the remote device A is 60% and the preset power supply efficiency is 84%, 60% is less than 84%. Then it is necessary to calculate the input power supply voltage UA corresponding to the real-time power supply efficiency of 60% of the remote device A through the real-time power supply current IA, the preset power supply efficiency 84%, the preset power supply voltage U0 and the preset power supply current I0.

[0052] In one embodiment, determining the input power voltage of the remote device based on the real-time power current in step 221 can be understood as: querying a power efficiency parameter table based on the real-time power current to obtain the input power voltage of the remote device corresponding to a preset power efficiency.

[0053] The power supply efficiency parameter table is a table used to characterize the corresponding relationship between the real-time power supply current, the input power supply voltage of the remote device and the preset power supply efficiency.

[0054] By looking up the power supply efficiency parameter table, the input power supply voltage of the remote device can be obtained, which can ensure that the input power supply voltage of the remote device is obtained in real time and quickly, making it convenient to adjust the power supply parameters of the remote device later.

[0055] Step 222 : Calculate and obtain power supply output parameters based on the equivalent impedance of the conductive cable and the input power supply voltage of the remote device.

[0056] For example, the voltage lost on the conductive cable can be calculated using the equivalent impedance of the conductive cable and the real-time power supply current. The power supply output voltage can then be calculated by combining the lost voltage with the input power supply voltage of the remote device.

[0057] By comparing the real-time power supply efficiency with the preset power supply efficiency, when the real-time power supply efficiency is lower than the preset power supply efficiency, the power supply output parameters are calculated based on the equivalent impedance of the conductive cable and the input power supply voltage of the remote device. By adjusting the power supply output parameters, the input power supply parameters of the remote device are indirectly adjusted to optimize the real-time power supply efficiency of the remote device. This ensures the safe and efficient operation of the remote device, avoids communication network interruptions, and improves the power supply security of the communication network.

[0058] In a specific implementation, when it is determined according to the detection information of the remote device that a sudden drop occurs in the load of the remote device, the input power supply voltage of the remote device is less than or equal to the load withstand voltage value of the remote device.

[0059] For example, in order to ensure the safety of remote device B, when it is known through the detection information of the remote device (for example, when the power consumption of remote device B is significantly reduced), the load in remote device B is suddenly powered off. At this time, in order to ensure the normal operation of remote device B, it is necessary to control the input power supply voltage of the remote device to be less than or equal to the load withstand voltage value of remote device B. For example, the input power supply voltage UB satisfies the following formula: UB = min{UB, load withstand voltage value}, where the load withstand voltage value represents the maximum voltage value input to remote device B.

[0060] By controlling the input power supply voltage of the remote device to be less than or equal to the load withstand voltage value of the remote device, the remote device is prevented from being damaged by the input high voltage, ensuring the normal operation of the remote device and improving the power supply efficiency.

[0061] In a specific implementation, the power output parameters include: output parameters of the first power supply and output parameters of the second power supply; if it is determined that the second power supply fails, the input power supply parameters of the remote device are adjusted according to the output parameters of the first power supply.

[0062] For example, if a fault in the second power supply is detected, the input power parameters of the remote device need to be adjusted promptly based on the output parameters of the first power supply. For example, the remote device can be powered only by the voltage output by the first power supply to ensure normal operation of the remote device, avoid interruptions in the communication network, and improve the security of the communication network.

[0063] In a specific implementation, step 230 includes: step 231, dynamically adjusting the input power supply parameters of the remote device in real time according to the power output parameters.

[0064] By dynamically adjusting the input power supply parameters of the remote device in real time, it is ensured that abnormal situations of the remote device can be handled in a timely manner, so that the real-time power supply efficiency of the remote device is optimized.

[0065] In a specific implementation, the following methods can be used to implement 231: using any one of the communication methods of a controller area network (CAN), a point-to-point interface communication method (e.g., RS485 interface communication, etc.), a short-distance communication method (e.g., WIFI communication, etc.), a wireless communication network method (e.g., Bluetooth communication, etc.), a serial communication method (Serial Communication), and a PLC method, to output the power output parameters to the remote device in real time, so that the input power supply parameters of the remote device can be dynamically adjusted. The above communication methods are only examples, and other unspecified communication methods are also within the scope of protection of this disclosure and can be set according to specific circumstances, and will not be repeated here.

[0066] Through different communication methods, the power output parameters are output to the remote device in real time, so that the input power parameters of the remote device can be dynamically adjusted, ensuring that the power input port of the remote device can obtain the power supply parameters provided by the power supply device within the standard specification range, reducing communication failure rate, improving power supply reliability, and reducing operating costs.

[0067] In one embodiment, before step 210, it also includes: obtaining a training parameter set, wherein the training parameter set includes training parameters, and the training parameters include input power supply parameters of the training remote device and the equivalent impedance of the conductive cable; establishing a power supply efficiency model based on the input power supply parameters and the equivalent impedance of the conductive cable; inputting the test power supply parameters into the power supply efficiency model for testing to obtain a preset power supply efficiency, wherein the input power supply parameters of the test remote device corresponding to the preset power supply efficiency meet the power supply requirements of the test remote device.

[0068] For example, by using the data in the power supply efficiency parameter table and conducting electricity using conductive cables of different materials, a training parameter set is obtained to establish a power supply efficiency model, and then the real-time measured test power supply parameters are input into the power supply efficiency model for testing. When the obtained power supply efficiency can meet the power supply requirements of the remote device (for example, the real-time power supply efficiency of the remote device meets the preset power supply efficiency), the power supply efficiency obtained at this time can be used as the preset power supply efficiency. The preset power supply efficiency can be used to evaluate the power supply situation of the remote device, so that the power supply device can make timely adjustments to the power supply situation of the remote device, thereby improving power supply efficiency and power supply reliability.

[0069] By using a large amount of data as training samples, a power supply efficiency model is established, which enables the preset power supply efficiency to be obtained through testing, preparing for the subsequent evaluation of the power supply situation of remote devices, accelerating the evaluation of the power supply situation of remote devices, ensuring the efficient and safe operation of remote devices, and optimizing the power supply efficiency of remote devices. At the same time, unnecessary waste of resources is avoided, and energy conservation and emission reduction are achieved.

[0070] Figure 4 shows a block diagram of a power supply system in one embodiment of the present disclosure. This power supply system can be a base station power supply system, used to compensate for output voltage losses caused by the equivalent impedance of long-distance conductive cables, providing appropriate DC power to remote devices to improve their power supply efficiency. The remote devices can be RRUs, AAUs, or other communications equipment.

[0071] As shown in Figure 4 , the power supply system includes a first power supply 310, a second power supply 320, a conductive cable 330, and a remote device 340. The output of the first power supply 310 is electrically connected to the input of the second power supply 320. The first power supply 310 includes a first monitoring module 311 and a rectifier module 312. The second power supply 320 includes a second monitoring module 321, a boost module 322, and an automatic transfer switching device (ATSE) 323. The remote device 340 includes a third monitoring module 341.

[0072] In an exemplary embodiment, the normal output voltage range of the rectifier module 312 is 42V-59.5V, and the output voltage range of the boost module 322 is 57V-63V, which are transmitted to the remote device 340 via the conductive cable 330 .

[0073] It should be noted that the first power supply 310 is used to perform alternating current-direct current (AC-DC) conversion. That is, the first power supply 310 converts the received alternating current into direct current through the rectifier module 312, and outputs the direct current to the second power supply 320. The received alternating current can be mains power, that is, industrial frequency alternating current. The second power supply 320 performs direct current-direct current (DC-DC) conversion through the boost module 322 (that is, the direct current input by the first power supply 310 is boosted to obtain boosted direct current), and then supplies the converted direct current to the remote device 340 through the conductive cable 330. In an exemplary embodiment, the first monitoring module 311, the second monitoring module 321, and the third monitoring module 341 can communicate with each other to monitor the power supply status in the power supply system.

[0074] For example, the second monitoring module 321 sends a detection instruction to the third detection module 341. The third detection module 341 detects the remote device 340, obtains detection information of the remote device 340, and generates a detection response based on the detection information. The third detection module 341 sends the detection response to the second monitoring module 321, so that the second monitoring module 321 obtains the detection information of the remote device 340. In one exemplary embodiment, the detection information includes the input power parameters of the remote device 340 (e.g., the supply voltage and supply current of the power input port of the remote device 340) and the model of the remote device 340. After obtaining the detection information, the second monitoring module 321 first notifies the first monitoring module 311 of the detection information, then generates a switching instruction based on the detection information and sends the switching instruction to the ATSE 323 to adjust the power supply status of the power supply system.

[0075] Figure 5a shows a schematic diagram of the structure of the second power supply in one embodiment of the present disclosure. As shown in Figure 5a, the second power supply 320 includes a boost module 322 and an automatic transfer switch device 323. The automatic transfer switch device 323 is integrated within the second power supply 320 and includes a switch K1 and a switch K2.

[0076] Figure 5b shows a schematic diagram of the structure of a second power supply in another embodiment of the present disclosure. As shown in Figure 5b, the second power supply 320 includes a boost module 322. In one exemplary embodiment, an automatic transfer switch device 323 is disposed outside the second power supply 320 and includes a switch K1 and a switch K2.

[0077] In one exemplary embodiment, the automatic transfer switch device may include a switch K1 and a switch K2. When switch K1 is closed and switch K2 is open, the second power supply 320 can provide DC-to-DC power to the power supply system via a boost module 322. For example, the voltage input from the first power supply 310 (not shown) is processed by the boost module 322 to obtain a boosted DC voltage. When switch K2 is closed and switch K1 is open, the power supply system no longer requires the boost module 322 to perform the boosting process. The voltage provided by the first power supply 310 alone can meet the power supply needs of the remote device 340 (not shown).

[0078] According to the power supply system in the embodiment of the present disclosure, the power supply in the power supply system is controlled by real-time control of the automatic transfer switch device to optimize the power supply efficiency. If the second power supply fails, the power supply can be switched to the first power supply by controlling the automatic transfer switch device, thereby improving the operational reliability of the power supply system.

[0079] Figure 6 shows a block diagram of a power supply system in another embodiment of the present disclosure. When the boost module 322 in the second power supply 320 fails, the boost module 322 is unable to boost the voltage input from the first power supply 310. In this case, the rectifier module 312 is directly connected to the automatic transfer switch 323, and the voltage U1 output by the rectifier module 312 of the first power supply 310 is used to power the remote device 340. This allows the power supply system to operate normally and prevents the remote device 340 from being unable to operate due to power outages.

[0080] As shown in Figure 6, the first power supply 310 includes a first monitoring module 311 and a rectifier module 312, and the remote device 340 includes a third monitoring module 341. The first monitoring module 311, the second monitoring module 321, and the third monitoring module 341 can communicate with each other via various communication methods (e.g., wireless communication) to monitor the power supply status of the power supply system. The rectifier module 312 is used to convert the received alternating current (AC) into direct current (DC) to facilitate long-distance transmission.

[0081] The input end of the automatic transfer switch device 323 is electrically connected to the output end of the rectifier module 312 in the first power supply 310, the output end of the automatic transfer switch device 323 is electrically connected to the conductive cable 330, and the automatic transfer switch device 323 is in a closed state (that is, K2 in Figure 5a or Figure 5b is in a closed state, and K1 is in an open state).

[0082] The monitoring results of the boost module 322 by the second monitoring module 321 indicate that the boost module 322 has failed. For example, the voltage output by the boost module 322 is 0V. At this time, the boost module 322 is unable to boost the voltage output by the rectifier module 312. To ensure the normal operation of the power supply system, the second monitoring module 322 issues a control instruction, causing K2 in the automatic transfer switch device 323 to be closed and K1 to be open. At this time, U1 = U2. As the load impedance of the remote device 340 and the equivalent impedance of the wire cable 330 change, the real-time power supply current I will also change. Since the equivalent impedance R of the wire cable 330 remains unchanged under certain conditions, it will inevitably cause changes in U2 and U3. The supply voltage on the conductive cable 330 can be calculated using the formula ΔU=U3-U2. When the ΔU variation is within the adjustment range of the first power supply 310 (for example, the supply voltage ΔU of the conductive cable 330 is less than a preset voltage threshold (for example, 5V, etc.)), it indicates that there is no need for the second power supply 320 to perform voltage boosting processing, and only the voltage output by the first power supply 310 can meet the power supply requirements of the remote device 340.

[0083] Any one of the communication methods, including a controller area network method, a point-to-point interface communication method, a short-distance communication method, a wireless communication network method, a serial communication method, and a power line communication method, can be used to output the power supply parameters (for example, the power supply voltage) output by the first power supply 310 to the remote device 340 in real time, so that the input power supply parameters (for example, the input power supply voltage and the real-time power supply current, etc.) of the remote device 340 can be dynamically adjusted.

[0084] In this embodiment, the automatic transfer switch device is controlled by the second monitoring module to directly output the power supply voltage output by the first power supply to the conductive cable, and then output to the remote device through the conductive cable to ensure the safe operation of the remote device and improve the working efficiency of the power supply system.

[0085] Figure 7 shows a block diagram of a power supply system in another embodiment of the present disclosure. If the transmission distance of the conductive cable 330 is long, the energy loss in the wire cable is large, causing the real-time power supply efficiency of the remote device 340 to be less than the preset power supply efficiency. In this case, the second power supply 320 is required to work in conjunction with the first power supply 310 to provide appropriate power output parameters for the remote device 340 to improve the real-time power supply efficiency of the remote device 340.

[0086] As shown in Figure 7, the first power supply 310 includes a first monitoring module 311 and a rectifier module 312, and the remote device 340 includes a third monitoring module 341. The first monitoring module 311, the second monitoring module 321, and the third monitoring module 341 can communicate with each other via various communication methods (e.g., wireless communication) to monitor the power supply status of the power supply system. The rectifier module 312 is used to convert the received alternating current (AC) into direct current (DC) to facilitate long-distance transmission.

[0087] The automatic transfer switch device 323 is in the open state (i.e., K1 in FIG. 4a or FIG. 4b is closed and K2 is open). Furthermore, the input end of the second power supply 320 (i.e., the input end of the second monitoring module 321) is electrically connected to the output end of the first power supply 310. The output end of the second power supply 320 (i.e., the output end of the boost module 322) is electrically connected to the conductive cable 330, enabling the second power supply 320 to use the boost module 322 to boost the voltage U1 input from the first power supply 310 to obtain a boosted DC power supply. This boosted DC power supply is then output to the remote device 340 via the conductive cable 330, thereby improving the real-time power supply efficiency of the remote device 340.

[0088] In specific implementation, the following steps can be used to improve the real-time power supply efficiency of the remote device 340.

[0089] In step 701, the second monitoring module 321 obtains the power supply voltage U1 output by the first power supply 310 through analog-to-digital conversion sampling, or by communicating with the first monitoring module 311; the second monitoring module 321 obtains the power supply voltage U4 processed by the boost module 322, the input power supply voltage U5 of the input port of the remote device 340, and the real-time power supply current I in the current power supply system.

[0090] It should be noted that the second monitoring module 321 can obtain the input supply voltage U5 by looking up the power supply efficiency parameter table, or by obtaining the input supply voltage U5 through an efficiency fitting curve. The above method for obtaining the input supply voltage U5 is merely an example, and specific settings can be made according to actual conditions. Other methods for obtaining the input supply voltage U5 not shown in the examples are also within the scope of protection of this disclosure and will not be described in detail here.

[0091] For example, Table 1 shows a power supply efficiency parameter table in an embodiment of the present disclosure. As shown in Table 1, the power supply efficiency parameter table includes the real-time power supply current I, the input power supply voltage U of the remote device 340, and the preset power supply efficiency η. By querying the power supply efficiency parameter table, the relationship between the input power supply voltage U of the remote device 340 and the preset power supply efficiency η under different real-time power supply currents I can be obtained.

[0092] Table 1 - Power supply efficiency parameter table

[0093]

[0094] For example, Figure 8 shows the efficiency fitting curve in the embodiment of the present disclosure. As shown in Figure 8, the horizontal axis of the efficiency fitting curve represents the input power supply voltage U5 of the remote device 340, and the vertical axis represents the preset power supply efficiency η of the remote device 340. Different real-time power supply currents (for example, current I1, current I2, and current I3, etc.) correspond to different input power supply voltages and preset power supply efficiencies of the remote device 340. The relationship between the three can be expressed as η=f(U, I). By observing Figure 8, it can be seen that if the current real-time power supply current is I3, when the input voltage of the remote device 340 is equal to 53V, the power supply efficiency of the remote device 340 reaches the highest value, which is about 89.10%.

[0095] In step 702, the second monitoring module 321 calculates the current real-time power supply efficiency of the remote device 340 based on the input power voltage U5 and the real-time power supply current I at the input port of the remote device 340. For example, the real-time power supply power P2 of the remote device 340 may be calculated (e.g., P2 = U5 * I). The real-time power supply power P2 is then compared to the preset power supply power P0 to obtain the current real-time power supply efficiency of the remote device 340: η2 = P2 / P0 = 60%.

[0096] It should be noted that the equivalent impedance of the conductive cable 330 in the power supply system changes with the real-time power supply current in the power supply system and the difference between U4 and U5. In addition, factors such as the number of loads in the remote device 340 and the ambient temperature will also affect the change in the equivalent impedance of the conductive cable 330.

[0097] Table 2 shows a table of equivalent impedance relationships of conductor cables in an embodiment of the present disclosure. As shown in Table 2, at different ambient temperatures, the equivalent impedances of conductor resistances with different cross-sectional areas are also different. For example, when the cross-sectional area of ​​the conductive cable is 2.5 square millimeters, the resistance per kilometer at room temperature is 7.98 ohms, while in a high temperature environment, the resistance per kilometer of the conductive cable is 8.94 ohms. If the conductive cable is very long (for example, 10 kilometers), the equivalent impedance of the conductive cable is very large (for example, 7.98*10=79.8 ohms, or 8.94*10=89.4 ohms).

[0098] Table 2 - Equivalent impedance relationship table of conductors and cables

[0099]

[0100]

[0101] For example, the equivalent impedance R of the conductive cable 330 is calculated based on the resistivity ρ and the length L of the conductive cable, i.e., R = ρ * L. When two conductive cables are parallel, the strength of the inductance between the two conductive cables will also affect the equivalent impedance of the conductive cables. For example, when current flows into conductive cable A and then flows out of conductive cable B, the inductance between the two conductive cables is calculated as:

[0102] Wherein, l represents the length of the parallel conductive cables, in meters (m); d represents the diameter of the conductive cables, in meters (m); and a represents the distance between the two conductive cables, in meters (m).

[0103] In specific implementation, the equivalent impedance of the conductive cable 330 can also be calculated using the formula: R=(U2-U3) / I through the automatic calculation mode set by the program.

[0104] It should be noted that as the load impedance of the remote device 340 and the equivalent impedance of the wire cable 330 change, the real-time power supply current I will also change. Since the equivalent impedance R of the wire cable 330 remains constant under certain conditions, it is bound to cause changes in U4 and U5. The power supply voltage on the conductive cable 330 can be calculated using the formula ΔU = U5 – U4. When ΔU changes significantly, the real-time power supply efficiency η2 of the remote device 340 does not reach the preset power supply efficiency. In this case, the first power supply 310 and the second power supply 320 are required to simultaneously provide power to the remote device 340 to ensure the normal operation of the remote device 340.

[0105] In step 803, by comparing the current real-time power supply efficiency of 60% of the remote device 340 with the preset power supply efficiency of 84.9%, it is found that the real-time power supply efficiency is significantly lower than the preset power supply efficiency. At this point, the power supply efficiency of the remote device 340 cannot be optimized, and more power is required to serve the remote device 340. For example, the DC voltage input by the first power supply 310 is boosted by the boost module 322 to obtain a boosted DC voltage, which is then output to the remote device 340 via the conductive cable 330, thereby improving the real-time power supply efficiency of the remote device 340.

[0106] It should be noted that the power supply voltage U4 output by the second power supply 320 is obtained by calculating the formula U4=U5+I*R. Considering the need to ensure safety when the remote device 340 suddenly powers off the load, the input power supply voltage of the remote device 340 is less than or equal to the load withstand voltage value of the remote device 340. For example, U5 satisfies the following formula: U5=min{U5, Umax}, where Umax represents the load withstand voltage value.

[0107] Figure 9 illustrates the effects of controlling the output supply voltage of a power supply in an embodiment of the present disclosure. As shown in Figure 9 , when the remote device 340 suddenly powers off the load, i.e., when the voltage on the load of the remote device 340 suddenly drops to 0V, the output supply voltage of the first power supply 310 is controlled in the above manner to not exceed the load withstand voltage (e.g., 60V). Vout represents the load withstand voltage of the remote device 340; Iin represents the real-time input current; and Io represents the output supply current of the power supply terminal.

[0108] For example, any one of the communication methods including a controller area network method, a point-to-point interface communication method, a short-distance communication method, a wireless communication network method, a serial communication method and a power line communication method can be used to output the power supply parameters (for example, the power supply voltage) output by the second power supply 320 to the remote device 340 in real time, so that the input power supply parameters (for example, the input power supply voltage and the real-time power supply current, etc.) of the remote device 340 can be dynamically adjusted.

[0109] In this embodiment, a second monitoring module monitors the power supply status of the power supply system, promptly controls the automatic transfer switch device, and adjusts the circuit structure to ensure optimal power supply efficiency for the remote device. A boost module in the second power supply boosts the DC voltage input from the first power supply to obtain a boosted DC voltage, which is then output to the remote device via a conductive cable, thereby improving the real-time power supply efficiency of the remote device.

[0110] The following describes in detail a power supply device according to an embodiment of the present invention in conjunction with the accompanying drawings. FIG10 shows a schematic structural diagram of a power supply device according to an embodiment of the present invention. As shown in FIG10 , the power supply device may include the following modules.

[0111] The calculation module 410 is configured to calculate and obtain the real-time power supply efficiency of the remote device based on the detection information of the remote device.

[0112] The determination module 420 is configured to determine the power output parameters for supplying power to the remote device according to the preset power efficiency and the real-time power efficiency.

[0113] The adjustment module 430 is configured to adjust the input power supply parameters of the remote device according to the power output parameters.

[0114] According to the power supply device of the embodiment of the present disclosure, the calculation module calculates the real-time power supply efficiency of the remote device based on the detection information of the remote device, so that it is possible to dynamically detect whether the remote device has achieved the optimal power supply efficiency; the determination module is used to determine the power output parameters output to the remote device based on the preset power supply efficiency and the real-time power supply efficiency, so that the adjustment module can adjust the input power supply parameters of the remote device according to the power output parameters, so as to realize dynamic control of the input power supply parameters of the remote device, reduce the unsafe factors caused by the frequent load fluctuations of the remote device, ensure the safe and efficient operation of the remote device, avoid the interruption of the communication network, and improve the power supply security of the communication network.

[0115] It should be understood that the present invention is not limited to the specific configurations and processes described in the above embodiments and illustrated in the figures. For the sake of convenience and brevity, detailed descriptions of known methods are omitted here. The specific working processes of the systems, modules, and units described above can be referred to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0116] FIG. 11 shows a structural diagram of an exemplary hardware architecture of an electronic device capable of implementing the power supply method and apparatus according to an embodiment of the present invention.

[0117] As shown in Figure 11, the electronic device 500 includes an input device 501, an input interface 502, a central processing unit 503, a memory 504, an output interface 505, and an output device 506. The input interface 502, the central processing unit 503, the memory 504, and the output interface 505 are interconnected via a bus 507. The input device 501 and the output device 506 are connected to the bus 507 via the input interface 502 and the output interface 505, respectively, and are further connected to other components of the electronic device 500.

[0118] Specifically, the input device 501 receives input information from the outside and transmits the input information to the central processing unit 503 through the input interface 502; the central processing unit 503 processes the input information based on the computer-executable instructions stored in the memory 504 to generate output information, stores the output information temporarily or permanently in the memory 504, and then transmits the output information to the output device 506 through the output interface 505; the output device 506 outputs the output information to the outside of the electronic device 500 for user use.

[0119] In one embodiment, the electronic device shown in FIG11 may be implemented as a network device, which may include: a memory configured to store a program; and a processor configured to run the program stored in the memory to execute the power supply method described in the above embodiment.

[0120] In one embodiment, the electronic device shown in Figure 11 can be implemented as a power supply system, which may include: a memory configured to store a program; and a processor configured to run the program stored in the memory to execute the power supply method described in the above embodiment.

[0121] The foregoing is merely an exemplary embodiment of the present disclosure and is not intended to limit the scope of protection of the present disclosure. Generally speaking, various embodiments of the present disclosure can be implemented in hardware or dedicated circuits, software, logic, or any combination thereof. For example, some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software that can be executed by a controller, microprocessor, or other computing device, although the present disclosure is not limited thereto.

[0122] Embodiments of the present disclosure may be implemented by executing computer program instructions on a data processor of a mobile device, for example, in a processor entity, or through hardware, or through a combination of software and hardware. The computer program instructions may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, state setting data, or source code or object code written in any combination of one or more programming languages.

[0123] The block diagram of any logical flow in the drawings of the present disclosure may represent program steps, or may represent interconnected logical circuits, modules and functions, or may represent a combination of program steps and logical circuits, modules and functions. The computer program may be stored on a memory. The memory may be of any type suitable for the local technical environment and may be implemented using any suitable data storage technology, such as, but not limited to, read-only memory (ROM), random access memory (RAM), optical memory devices and systems (digital versatile discs DVD or CD), etc. Computer-readable media may include non-transient storage media. The data processor may be of any type suitable for the local technical environment, such as, but not limited to, a general-purpose computer, a special-purpose computer, a microprocessor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a programmable logic device (FPGA) and a processor based on a multi-core processor architecture.

[0124] The foregoing detailed description of exemplary embodiments of the present disclosure has been provided by way of exemplary and non-limiting examples. However, various modifications and adaptations to the foregoing embodiments will be apparent to those skilled in the art, when considered in conjunction with the accompanying drawings and claims, without departing from the scope of the present invention. Therefore, the proper scope of the present invention will be determined by reference to the claims.

Claims

1. A power supply method, in, The method comprises: Calculate and obtain the real-time power supply efficiency of the remote device based on the detection information of the remote device; Determining a power output parameter for supplying power to the remote device according to a preset power supply efficiency and the real-time power supply efficiency; According to the power output parameter, the input power supply parameter of the remote device is adjusted.

2. The method according to claim 1, in, Before the step of calculating and obtaining the real-time power supply efficiency of the remote device according to the detection information of the remote device, the method further includes: Acquire a real-time power supply current and an equivalent impedance of a conductive cable, wherein the conductive cable is a cable connected to the remote device; The power supply voltage of the conductive cable is obtained by calculation according to the equivalent impedance of the conductive cable and the real-time power supply current.

3. The method according to claim 2, in, The step of determining the power output parameter for supplying power to the remote device according to the preset power supply efficiency and the real-time power supply efficiency comprises: If it is determined that the real-time power supply efficiency is less than the preset power supply efficiency, determining the input power supply voltage of the remote device according to the real-time power supply current; The power supply output parameter is obtained by calculation according to the equivalent impedance of the conductive cable and the input power supply voltage of the remote device.

4. The method according to claim 3, in, The step of determining the input power supply voltage of the remote device according to the real-time power supply current includes: Querying a power supply efficiency parameter table according to the real-time power supply current to obtain an input power supply voltage of the remote device corresponding to the preset power supply efficiency; The power supply efficiency parameter table is a list used to characterize the corresponding relationship between the real-time power supply current, the input power supply voltage of the remote device and the preset power supply efficiency.

5. The method according to claim 1, in, When it is determined according to the detection information of the remote device that a sudden drop occurs in the load of the remote device, the input supply voltage of the remote device is less than or equal to the load withstand voltage value of the remote device.

6. The method according to claim 1, in, The power output parameters include: output parameters of the first power supply and output parameters of the second power supply; the step of adjusting the input power supply parameters of the remote device according to the power output parameters includes: If it is determined that the second power supply fails, the input power supply parameters of the remote device are adjusted according to the output parameters of the first power supply.

7. The method according to claim 2, in, Before the step of calculating and obtaining the real-time power supply efficiency of the remote device according to the detection information of the remote device, the method further includes: Acquire a training parameter set, wherein the training parameter set includes training parameters, and the training parameters include input power supply parameters of a training remote device and an equivalent impedance of the conductive cable; Establishing a power supply efficiency model according to the input power supply parameters and the equivalent impedance of the conductive cable; The test power supply parameters are input into the power supply efficiency model for testing to obtain the preset power supply efficiency, wherein the input power supply parameters of the test remote device corresponding to the preset power supply efficiency meet the power supply requirements of the test remote device.

8. The method according to any one of claims 1 to 4, in, The step of adjusting the input power supply parameter of the remote device according to the power output parameter comprises: According to the power output parameters, the input power supply parameters of the remote device are dynamically adjusted in real time.

9. The method according to claim 8, in, The step of dynamically adjusting the input power supply parameters of the remote device in real time according to the power output parameters comprises: By adopting any one of the communication modes including controller area network mode, point-to-point interface communication mode, short-distance communication mode, wireless communication network mode, serial communication mode and power line communication mode, the power supply output parameter is output to the remote device in real time, so that the input power supply parameter of the remote device can be dynamically adjusted.

10. The method according to any one of claims 1 to 4, in, Before the step of calculating and obtaining the real-time power supply efficiency of the remote device according to the detection information of the remote device, the method further includes: Dynamically monitor the power supply parameters between the power supply device and the remote device to obtain the detection information.

11. The method according to claim 10, in, The step of dynamically monitoring the power supply parameters between the power supply device and the remote device to obtain the detection information includes: Sending a detection instruction to the remote device; In response to the detection response returned by the remote device, the detection information is acquired, wherein the detection information includes an input power supply parameter of the remote device and a model of the remote device.

12. The method according to claim 2, in, The step of obtaining the real-time power supply current and the equivalent impedance of the conductive cable includes: Get real-time power supply current; Calculating and obtaining an equivalent impedance of the conductive cable according to the resistivity of the conductive cable and the length of the cable; or, The equivalent impedance of the conductive cable is obtained by calculation according to the current of the conductive cable and the voltage difference on the conductive cable.

13. A power supply device, in, The device comprises: A calculation module is configured to calculate and obtain the real-time power supply efficiency of the remote device according to the detection information of the remote device; A determination module, configured to determine a power output parameter for supplying power to the remote device according to a preset power supply efficiency and the real-time power supply efficiency; The adjustment module is configured to adjust the input power supply parameters of the remote device according to the power output parameters.

14. A network device, include: one or more processors; A memory having one or more programs stored thereon, wherein when the one or more programs are executed by the one or more processors, the one or more processors implement the power supply method described in any one of claims 1 to 12.

15. A readable storage medium, in, The readable storage medium stores a computer program, and when the computer program is executed by a processor, the power supply method according to any one of claims 1 to 12 is implemented.