CN113923062A - Power supply method and device, network equipment and readable storage medium - Google Patents
Power supply method and device, network equipment and readable storage medium Download PDFInfo
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Abstract
The application provides a power supply method, a power supply device, network equipment and a readable storage medium, wherein the method comprises the following steps: calculating to obtain the real-time power supply efficiency of the remote equipment according to the detection information of the remote equipment; determining a power output parameter for supplying power to the remote equipment according to the preset power supply efficiency and the real-time power supply efficiency; and adjusting the input power supply parameters of the remote equipment according to the power output parameters. The real-time power supply efficiency of the remote equipment is calculated and obtained through the detection information of the remote equipment, and whether the remote equipment reaches the optimal power supply efficiency or not can be dynamically detected; the method and the device realize dynamic control of the input power supply parameters of the remote equipment, reduce unsafe factors caused by frequent fluctuation of the load of the remote equipment, ensure safe and efficient operation of the remote equipment, avoid interruption of a communication network and improve the power supply safety of the communication network.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a power supply method, apparatus, network device, and readable storage medium.
Background
The communication power supply mostly adopts a basic power supply (for example, a 48V power supply), and the voltage of the 48V power supply is inverted and boosted and then converted into a high-voltage direct-current voltage for use by a remote device. In the process of voltage conversion, the energy consumption efficiency is only about 80% usually, resulting in large energy loss. Before the fifth Generation Mobile communication technology (5G), the problem of voltage power consumption was not obvious because of less base station data and the smaller number of remote base stations (i.e., base stations that provide suitable power for remote devices). However, with the development of 5G, the number of remote base stations increases in stages, resulting in more and more obvious problems of voltage consumption. According to statistics of network faults, the reasons for interruption of the 5G communication network are mostly related to power supplies, so that communication safety cannot be guaranteed.
At present, Power Line Communication (PLC) is mostly adopted between the remote device and the remote Power supply of the remote base station, which easily causes that the input voltage of the remote device cannot meet the Power supply requirement of the remote device, and affects the Power supply safety of the Communication network.
Disclosure of Invention
The application provides a power supply method, a power supply device, network equipment and a readable storage medium. The method and the device are used for solving the problem that a communication network is interrupted due to the fact that a remote power supply of a remote base station cannot provide a proper power supply for remote equipment in time, and accordingly communication safety is poor.
The embodiment of the application provides a power supply method, which comprises the following steps: calculating to obtain the real-time power supply efficiency of the remote equipment according to the detection information of the remote equipment; determining a power output parameter for supplying power to the remote equipment according to the preset power supply efficiency and the real-time power supply efficiency; and adjusting the input power supply parameters of the remote equipment according to the power output parameters.
An embodiment of the present application provides a power supply apparatus, including: the calculation module is used for calculating and obtaining the real-time power supply efficiency of the remote equipment according to the detection information of the remote equipment; the determining module is used for determining power supply output parameters for supplying power to the remote equipment according to preset power supply efficiency and real-time power supply efficiency; and the adjusting module is used for adjusting the input power supply parameters of the remote equipment according to the power output parameters.
An embodiment of the present application provides a network device, including: one or more processors; a memory having one or more programs stored thereon, which when executed by the one or more processors, cause the one or more processors to implement any one of the power supplying methods in the embodiments of the present application.
The embodiment of the application provides a readable storage medium, and a computer program is stored in the readable storage medium, and when being executed by a processor, the computer program realizes any one of the power supply methods in the embodiment of the application.
According to the power supply method, the power supply device, the network equipment and the readable storage medium, the real-time power supply efficiency of the remote equipment is calculated and obtained through the detection information of the remote equipment, so that whether the remote equipment reaches the optimal power supply efficiency can be dynamically detected; the power output parameters output to the remote equipment are determined according to the preset power supply efficiency and the real-time power supply efficiency, so that the input power supply parameters of the remote equipment can be adjusted according to the power output parameters, the dynamic control of the input power supply parameters of the remote equipment is realized, unsafe factors caused by frequent fluctuation of the load of the remote equipment are reduced, the safe and efficient operation of the remote equipment is ensured, the interruption of a communication network is avoided, and the power supply safety of the communication network is improved.
With regard to the above embodiments and other aspects of the present application and implementations thereof, further description is provided in the accompanying drawings description, detailed description and claims.
Drawings
Fig. 1 shows a block diagram of components of a conventional power supply system.
Fig. 2 shows a schematic flow chart of a power supply method in the embodiment of the present application.
Fig. 3 shows a flow chart of a method of determining a power supply output parameter in an exemplary embodiment of the application.
Fig. 4 shows a block diagram of the components of the power supply system in an embodiment of the present application.
Fig. 5a shows a schematic structural diagram of a second power supply in an embodiment of the present application.
Fig. 5b shows a schematic diagram of a second power supply in a further embodiment of the present application.
Fig. 6 shows a block diagram of the components of a power supply system in a further embodiment of the present application.
Fig. 7 shows a block diagram of the components of a power supply system in a further embodiment of the present application.
Fig. 8 shows an efficiency fitting curve in the embodiment of the present application.
Fig. 9 shows an effect diagram of controlling the output supply voltage of the power supply in the embodiment of the present application.
Fig. 10 is a schematic structural diagram of a power supply device according to an embodiment of the present invention.
Fig. 11 is a block diagram illustrating an exemplary hardware architecture of an electronic device capable of implementing a power supply method and apparatus according to an embodiment of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the present application more apparent, embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
Fig. 1 shows a block diagram of components of a conventional power supply system. As shown in fig. 1, in the conventional power supply system, a first power source 110 and a second power source 120 are connected in series, and a remote device 140 is powered through a conductive cable 130. The first power source 110 includes a rectifying module 111, and the second power source 120 includes a boosting module 121.
When the first power source 110 and the second power source 120 work in series, once the boosting module 121 in the second power source 120 fails, the entire power supply system is powered off, and the reliability of power supply of the system cannot be guaranteed. Moreover, when the boost voltage of the boost module 121 is not high and the boost module 121 works with a load, the extra power consumption of the power supply system is increased. In the communication system, since the remote device 140 and the remote power supply (e.g., the first power supply 110 and the second power supply 120) of the remote base station mostly adopt power line communication, the power supply voltage output to the remote device 140 cannot be adjusted in real time, so that the input voltage of the remote device 140 cannot meet the power supply requirement of the remote device 140. When the line load fluctuation between the remote device 140 and the remote power supply of the remote base station is large, the input voltage of the remote device 140 may exceed the maximum withstand voltage of the remote device 140, which easily causes the damage of the remote device 140 and affects the power supply safety of the communication network.
Fig. 2 shows a schematic flow chart of a power supply method according to an embodiment of the present application. The power supply method can be applied to a power supply device, and the power supply device can be arranged in a base station. As shown in fig. 2, the power supply method in the embodiment of the present application may include the following steps.
And step 210, calculating to obtain the real-time power supply efficiency of the remote equipment according to the detection information of the remote equipment.
The Remote device may be a Remote Radio Unit (RRU), an Active Antenna Unit (AAU), or other communication devices. The above far-end devices are only examples, and other far-end devices not described are also within the protection scope of the present application, and may be specifically set according to specific situations, and are not described herein again.
In one specific implementation, before step 210, the method further includes: and dynamically monitoring power supply parameters between the remote equipment and the remote equipment to obtain detection information.
The working condition of the far-end equipment can be timely obtained by dynamically monitoring the power supply parameters between the power supply device and the far-end equipment, so that whether the far-end equipment can obtain the power supply parameters meeting the power supply requirement or not is confirmed, and when the input power supply parameters of the far-end equipment cannot meet the power supply requirement of the far-end equipment, the power supply device can timely calculate and obtain the real-time power supply efficiency of the far-end equipment through detection information. And then whether the real-time power supply efficiency of the remote equipment meets the power supply requirement of the remote equipment is accurately obtained, and reference is made for adjusting the output power supply parameters of the power supply.
The power supply parameters between the dynamic monitoring and the remote equipment and the acquisition of the detection information can be realized by adopting the following modes: . Sending a detection instruction to the remote equipment; and acquiring detection information in response to a detection response returned by the remote equipment.
The detection information comprises input power supply parameters of the remote equipment and the model of the remote equipment. For example, the input supply parameters may include an input supply voltage, an input supply current, and the like. The working channel of the remote equipment, the specific number of the radio frequency channels of the remote equipment, the output power of the radio frequency port of each radio frequency channel and other information can be known through the model of the remote equipment, so that the electric quantity required to be consumed by the remote equipment in normal working can be further known, and a proper power supply output parameter is provided for the remote equipment to be used as a reference. The above detection information is only an example, and other unexplained detection information is also within the protection scope of the present application, and may be specifically set according to specific situations, and is not described herein again.
And step 220, determining power supply output parameters for supplying power to the remote equipment according to the preset power supply efficiency and the real-time power supply efficiency.
The preset power supply efficiency may be a parameter set in advance, or may be a numerical value obtained by analyzing the big data. By comparing the real-time power supply efficiency with the preset power supply efficiency, whether the remote equipment works normally or not can be known, or whether unnecessary power consumption loads exist or not can be known, and the power supply is adjusted according to different conditions so as to determine the power supply output parameters for supplying power to the remote equipment. For example, the power output parameter may be a power output voltage, a voltage output current, or the like.
And step 230, adjusting the input power supply parameters of the remote equipment according to the power output parameters.
For example, the input power supply parameters of the remote device are increased (e.g., the input power supply voltage of the remote device is increased) through the power output parameters, so that the remote device can ensure safe and efficient operation; or, the input power supply parameters of the remote equipment are reduced through the power output parameters, so that unnecessary electric quantity loss is reduced, and the power supply efficiency is improved.
According to the power supply method, the real-time power supply efficiency of the remote equipment is calculated and obtained according to the detection information of the remote equipment, so that whether the remote equipment reaches the optimal power supply efficiency or not can be dynamically detected; the power output parameters output to the remote equipment are determined according to the preset power supply efficiency and the real-time power supply efficiency, so that the input power supply parameters of the remote equipment can be adjusted according to the power output parameters, the dynamic control of the input power supply parameters of the remote equipment is realized, unsafe factors caused by frequent fluctuation of the load of the remote equipment are reduced, the safe and efficient operation of the remote equipment is ensured, the interruption of a communication network is avoided, and the power supply safety of the communication network is improved.
In one embodiment, before step 210, the method further includes:
step 240, obtaining the real-time power supply current and the equivalent impedance of the conductive cable.
Wherein the conductive cable is a cable connected to a remote device. For example, the conductive cable may be a cable made of silver, copper, aluminum, or the like, and is used to electrically connect with the remote device, so that the remote device can obtain a supply voltage or a supply current outputted by the power supply. The real-time power supply current can be obtained by measuring the circuit in real time through an automatic measuring instrument (or a meter).
In one specific implementation, step 240 may be implemented as follows: acquiring real-time power supply current; calculating to obtain the equivalent impedance of the conductive cable according to the resistivity of the conductive cable and the length of the cable; or calculating to obtain the equivalent impedance of the conductive cable according to the difference value of the current of the conductive cable and the voltage on the conductive cable.
For example, from the resistivity ρ of a conductive wire and the length L of the conductive wire, the equivalent impedance R of the conductive wire is calculated, i.e., R ═ ρ × L. For example, the resistivity of copper lines is 1.72 x 10^ (-8) Ω/m; the resistivity of the aluminum wire is 2.9 x 10 < -8 > omega/m, etc. The conductive cables made of different materials have different specific resistance. If the difference between the voltage at the input end of the conductive cable and the voltage at the output end of the conductive cable is Δ U, and the current flowing through the conductive cable is I, the equivalent impedance R of the conductive cable is Δ U/I.
Through the different modes, the equivalent impedance of the conductive cable is obtained through calculation, and the equivalent impedance is written into an Electrically Erasable Programmable Read Only Memory (EEPROM), so that the EEPROM can obtain the equivalent impedance of the conductive cable in real time, and the electric quantity loss on the conductive cable can be calculated dynamically.
And 250, calculating to obtain the power supply voltage of the conductive cable according to the equivalent impedance and the real-time power supply current of the conductive cable.
The equivalent impedance of the conductive cable is obtained through calculation according to the parameters of the conductive cable, and then the power supply voltage of the conductive cable can be obtained through calculation by combining with the real-time power supply current, and the power supply voltage can reflect the electric quantity consumed on the conductive cable. The input power supply parameters of the remote equipment can be adjusted in time by combining the power output parameters output by the power supply in real time, so that the dynamic control of the input power supply parameters of the remote equipment is realized, unsafe factors caused by frequent fluctuation of the load of the remote equipment are reduced, the safe and efficient operation of the remote equipment is ensured, and the power supply safety of a communication network is improved.
Fig. 3 shows a schematic flow chart of a method for determining a power output parameter in an embodiment of the present application. As shown in fig. 3, step 220 may be implemented as follows, including steps 221 to 222.
For example, when the real-time power supply efficiency of the remote device a is 60%, the preset power supply is performedWhen the efficiency is 84 percent, 60 percent is less than 84 percent, the real-time power supply current I needs to be passedAPresetting power supply efficiency of 84% and power supply voltage U0And a predetermined supply current I0And calculating to obtain the input power supply voltage U corresponding to the real-time power supply efficiency of the remote equipment A of 60 percentA。
In one embodiment, determining the input supply voltage of the remote device according to the real-time supply current in step 221 may be understood as: and inquiring a power supply efficiency parameter table according to the real-time power supply current to obtain the input power supply voltage of the remote equipment corresponding to the preset power supply efficiency.
The power supply efficiency parameter table is a list for representing the corresponding relationship among the real-time power supply current, the input power supply voltage of the remote equipment and the preset power supply efficiency.
The input power supply voltage of the far-end equipment is obtained by searching the power supply efficiency parameter table, so that the input power supply voltage of the far-end equipment can be rapidly obtained in real time, and the subsequent adjustment of the power supply parameters of the far-end equipment is facilitated.
For example, the voltage lost on the conductive cable can be calculated and obtained by the equivalent impedance of the conductive cable and the real-time supply current, and then the power supply output voltage can be calculated and obtained by combining the lost voltage with the input supply voltage of the remote device.
Comparing the real-time power supply efficiency with the preset power supply efficiency, when the real-time power supply efficiency is smaller than the preset power supply efficiency, calculating to obtain the power output parameter through the equivalent impedance of the conductive cable and the input power supply voltage of the remote equipment, and indirectly adjusting the input power supply parameter of the remote equipment by adjusting the power output parameter, so that the real-time power supply efficiency of the remote equipment is optimized. The safe and efficient operation of the remote equipment is ensured, the interruption of the communication network is avoided, and the power supply safety of the communication network is improved.
In one specific implementation, when it is determined that the load of the remote device suddenly drops according to the detection information 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.
For example, in order to ensure the safety of the remote device B, when it is known through the detection information of the remote device (for example, when the power consumed by the remote device B is significantly reduced), the load in the remote device B is suddenly powered down, and at this time, in order to ensure the normal operation of the 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 the remote device B, for example, the input power supply voltage UBThe following formula is satisfied: u shapeB＝min{UBLoad withstand voltage value, where the load withstand voltage value represents the maximum voltage value input to the remote apparatus B.
By controlling the input power supply voltage of the remote equipment to be less than or equal to the load withstand voltage value of the remote equipment, the damage of the input high voltage of the remote equipment is avoided, the normal work of the remote equipment is ensured, and the power supply efficiency of the power supply is improved.
In one particular implementation, the power supply output parameters include: an output parameter of the first power supply and an output parameter of the second power supply; and if the second power supply is determined to be in fault, adjusting the input power supply parameters of the remote equipment according to the output parameters of the first power supply.
For example, when it is detected that the second power supply fails, the input power supply parameters of the remote device need to be adjusted in time according to the output parameters of the first power supply. For example, the voltage output by the first power supply can be used for supplying power to the remote equipment only, so that the normal operation of the remote equipment is ensured, the interruption of the communication network is avoided, and the safety of the communication network is improved.
In one particular implementation, step 230 includes: and 231, dynamically adjusting the input power supply parameters of the remote equipment in real time according to the power output parameters.
The input power supply parameters of the remote equipment are dynamically adjusted in real time, so that abnormal conditions of the remote equipment can be timely processed, and the real-time power supply efficiency of the remote equipment is optimized.
In one particular implementation, 231 may be implemented as follows: the method comprises the steps of adopting any one of a Controller Area Network (CAN) mode, a point-to-point interface Communication mode (such as an RS485 interface Communication mode), a short-distance Communication mode (such as a WIFI Communication mode), a wireless Communication Network mode (such as a Bluetooth Communication mode), a Serial Communication mode (Serial Communication) and a PLC mode to output power output parameters to remote equipment in real time, so that the input power supply parameters of the remote equipment are dynamically adjusted. The above communication methods are only examples, and other communication methods not described are also within the scope of the present application, and may be specifically set according to specific situations, and are not described herein again.
The power output parameters are output to the remote equipment in real time through different communication modes, so that the input power supply parameters of the remote equipment are dynamically adjusted, the power supply input port of the remote equipment can obtain the power supply parameters provided by the power supply device in a standard range, the communication failure rate is reduced, the power supply reliability is improved, and the operation cost is reduced.
In one embodiment, before step 210, the method further includes: acquiring a training parameter set, wherein the training parameter set comprises training parameters, and the training parameters comprise input power supply parameters of training remote equipment and equivalent impedance of a conductive cable; establishing a power supply efficiency model according to input power supply parameters and equivalent impedance of the conductive cable; and inputting the test power supply parameters into the power supply efficiency model for testing to obtain preset power supply efficiency, wherein the input power supply parameters of the test remote equipment corresponding to the preset power supply efficiency meet the power supply requirement of the test remote equipment.
For example, through the data in the power supply efficiency parameter table, and use the electrically conductive cable of different materials to conduct, obtain the training parameter set, thereby establish the power supply efficiency model, then input the test power supply parameter of real-time measurement into the power supply efficiency model and test, when the power supply efficiency who obtains can satisfy the power supply requirement of distal end equipment (for example, the real-time power supply efficiency of distal end equipment accords with and predetermines power supply efficiency), the power supply efficiency who obtains this moment can regard as and predetermine power supply efficiency, this predetermine power supply efficiency can be used for evaluating the power supply condition to the distal end equipment, make power supply unit can in time make the adjustment to the power supply condition of distal end equipment, promote power supply efficiency and power supply reliability.
By using a large amount of data as training samples, a power supply efficiency model is established, so that the preset power supply efficiency can be obtained through testing, preparation work is prepared for subsequently evaluating the power supply condition of the remote equipment, the evaluation on the power supply condition of the remote equipment is accelerated, the efficient and safe operation of the remote equipment is ensured, the power supply efficiency of the remote equipment is optimized, meanwhile, unnecessary resource waste is avoided, and energy conservation and emission reduction are realized.
Fig. 4 shows a block diagram of the components of the power supply system in an embodiment of the present application. The power supply system can be a base station power supply system and is used for compensating the loss of the equivalent impedance of the long-distance conductive cable to the output voltage and providing a proper direct current power supply for the remote equipment so as to improve the power supply efficiency of the remote equipment. The remote device may be an RRU, an AAU, or other communication device.
As shown in fig. 4. The power supply system includes: a first power source 310, a second power source 320, a conductive cable 330, and a remote device 340, wherein an output of the first power source 310 is electrically connected to an input of the second power source 320. The first power supply 310 includes a first monitoring module 311 and a rectifying module 312, the second power supply 320 includes a second monitoring module 321, a boosting module 322 and an Automatic Transfer Switching Equipment (ATSE) 323, and the remote device 340 includes a third monitoring module 341.
The voltage range normally output by the rectifying module 312 is 42V to 59.5V, and the voltage range output by the boosting module 322 is 57V to 63V, and the voltage is transmitted to the remote device 340 through the conductive cable 330.
It should be noted that the first power supply 310 is configured to perform Alternating Current-Direct Current (AC-DC) conversion, that is, the first power supply 310 converts the received AC power into DC power through the rectifier module 312, and outputs the DC power to the second power supply 320. Wherein, the received alternating current can be commercial power, namely power frequency alternating current. The second power source 320 performs DC-DC (DC-DC) conversion through the boost module 322 (i.e., the DC input by the first power source 310 is boosted to obtain boosted DC), and then supplies the converted DC to the remote device 340 through the conductive cable 330. 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 condition in the power supply system.
For example, the second monitoring module 321 sends a detection instruction to the third detecting module 341; the third detection module 341 obtains the detection information of the remote device 340 by detecting the remote device 340, and generates a detection response according to the detection information; the third detecting module 341 sends a detection response to the second monitoring module 321, so that the second monitoring module 321 obtains the detection information of the remote device 340. The detection information includes input power parameters of the remote device 340 (e.g., power supply voltage and power supply current at the power supply input port of the remote device 340, etc.) and the model of the remote device 340. After the second monitoring module 321 obtains the detection information, it first informs the first monitoring module 311 of the detection information, then generates a switch switching instruction according to the detection information, and sends the switch switching instruction to the ATSE323, so as to adjust the power supply condition in the power supply system.
Fig. 5a shows a schematic structure diagram of the second power supply in an embodiment of the present application, and as shown in fig. 5a, the second power supply 320 includes a boost module 322 and an automatic transfer switching device 323, wherein the automatic transfer switching device 323 is integrated inside the second power supply 320, and the automatic transfer switching device 323 includes a switch K1 and a switch K2.
Fig. 5b shows a schematic diagram of a second power supply in a further embodiment of the present application. As shown in fig. 5b, the second power supply 320 includes a boost module 322. Wherein the automatic transfer switching device 323 is disposed outside the second power source 320, and the automatic transfer switching device 323 includes a switch K1 and a switch K2.
Among them, the automatic transfer switching device may include a switch K1 and a switch K2. When the switch K1 is closed and the switch K2 is opened, the second power source 320 can provide a dc-to-dc power source for the power supply system through the voltage boosting module 322, for example, a voltage input by the first power source 310 (not shown in the figure) is processed by the voltage boosting module 322 to obtain a boosted dc voltage. When the switch K2 is closed and the switch K1 is opened, it means that the power supply system does not need the voltage boosting module 322 to perform the voltage boosting process, and the power supply requirement of the remote device 340 (not shown in the figure) can be satisfied by using the voltage provided by the first power source 310.
According to the power supply system in the embodiment of the application, the power supply in the power supply system is controlled by controlling the automatic transfer switch device in real time, so that the power supply efficiency is optimal, if the second power supply fails, the power supply source can be switched to the first power supply by controlling the automatic transfer switch device, and the operation reliability of the power supply system is improved.
Fig. 6 shows a block diagram of the components of a power supply system in a further embodiment of the present application. When the boosting module 322 in the second power source 320 fails, the boosting module 322 cannot boost the voltage input by the first power source 310, and at this time, the rectifying module 312 is directly connected to the automatic transfer switching device 323, and the voltage U1 output by the rectifying module 312 of the first power source 310 is used to supply power to the remote device 340, so that the power supply system can normally operate, and the remote device 340 cannot work due to power failure.
As shown in fig. 6, the first power supply 310 includes a first monitoring module 311 and a rectifying 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 may communicate with each other through different communication methods (e.g., wireless communication, etc.) to monitor a power supply condition in the power supply system. The rectifier module 312 is used to convert the received ac power into dc power for long-distance transmission.
The input terminal of the automatic transfer switching device 323 is electrically connected to the output terminal of the rectifying module 312 in the first power supply 310, the output terminal of the automatic transfer switching device 323 is electrically connected to the conductive cable 330, and the automatic transfer switching device 323 is in a closed state (i.e., K2 in fig. 5a or 5b is in a closed state and K1 is in an open state).
Through the monitoring result of the second monitoring module 321 on the boosting module 322, it is found that the boosting module 322 has a fault, for example, the voltage output by the boosting module 322 is 0v, at this time, the boosting module 322 cannot boost the voltage output by the rectifying module 312, and in order to ensure that the power supply system can normally operate, the second monitoring module 32 sends a control instruction, so that K2 in the automatic transfer switching device 323 is in a closed state, and K1 is in an open state. At this time, the real-time power supply current I changes with the changes of the load impedance of the remote device 340 and the equivalent impedance of the wire cable 330, and the changes of U2 and U3 are bound to be caused because the equivalent impedance R of the wire cable 330 remains unchanged under certain conditions. The power supply voltage on the conductive cable 330 can be calculated by the formula Δ U — U3-U2, and when the Δ U change is within the adjustment range of the first power supply 310 (e.g., the power supply voltage Δ U of the conductive cable 330 is smaller than a preset voltage threshold (e.g., 5V, etc.)), it indicates that the power supply requirement of the remote device 340 can be satisfied by using only the voltage output by the first power supply 310 without performing the boosting process by the second power supply 320.
Any one of a controller area network mode, a point-to-point interface communication mode, a short-distance communication mode, a wireless communication network mode, a serial communication mode and a power line communication mode may be adopted to output the power supply parameters (e.g., 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 (e.g., the input power supply voltage and the real-time power supply current) of the remote device 340 are dynamically adjusted.
In this embodiment, through the automatic change-over device of second monitoring module control, directly give electrically conductive cable with the power supply voltage output of first power output to export distal end equipment through electrically conductive cable, with the safe work of guaranteeing distal end equipment, promote power supply system's work efficiency.
Fig. 7 shows a block diagram of the components of a power supply system in a further embodiment of the present application. If the transmission distance of the conductive cable 330 is long, the energy loss on the conductive cable is large, so that the real-time power supply efficiency of the remote device 340 is smaller than the preset power supply efficiency, at this time, the second power source 320 needs to work together with the first power source 310 to provide a proper power output parameter for the remote device 340, so as to improve the real-time power supply efficiency of the remote device 340.
As shown in fig. 7, the first power supply 310 includes a first monitoring module 311 and a rectifying 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 may communicate with each other through different communication methods (e.g., wireless communication, etc.) to monitor a power supply condition in the power supply system. The rectifier module 312 is used to convert the received ac power into dc power for long-distance transmission.
The automatic transfer switching device 323 is in an open state, (i.e., K1 is in a closed state and K2 is in an open state in fig. 5a or 5 b). Moreover, the input end of the second power source 320 (i.e., the input end of the second monitoring module 321) is electrically connected to the output end of the first power source 310, and the output end of the second power source 320 (i.e., the output end of the voltage boosting module 322) is electrically connected to the conductive cable 330, so that the second power source 320 can boost the voltage U1 input by the first power source 310 using the voltage boosting module 322 to obtain a boosted dc power, and then output the boosted dc power to the remote device 340 through the conductive cable 330, so as to improve the real-time power supply efficiency of the remote device 340.
In particular, the following steps may be performed to improve the real-time power supply efficiency of the remote device 340.
In step 701, the second monitoring module 321 obtains the power supply voltage U1 output by the first power supply 310 through an analog-to-digital conversion sampling manner or a communication manner with the first monitoring module 311; the second monitoring module 321 obtains the power supply voltage U4 processed by the voltage boosting module 322, the input supply voltage U5 of the input port of the remote device 340, and the real-time supply current I in the current power supply system.
It should be noted that the second monitoring module 321 may obtain the input power supply voltage U5 by searching the power supply efficiency parameter table, or obtain the input power supply voltage U5 by fitting an efficiency curve. The above-mentioned obtaining manner of the input power supply voltage U5 is only an example, and may be specifically set according to actual situations, and other obtaining manners of the input power supply voltage U5 that are not illustrated are also within the protection scope of the present application, and are not described herein again.
For example, table 1 shows a power supply efficiency parameter table in the embodiment of the present application. 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 at different real-time power supply currents I can be obtained.
TABLE 1 Power supply efficiency parameter Table
For example, fig. 8 shows an efficiency fitting curve in the embodiment of the present application. As shown in fig. 8, the abscissa of the efficiency-fitted curve represents the input supply voltage U5 of the remote device 340, and the ordinate represents the preset supply efficiency η of the remote device 340. The input power supply voltage and the preset power supply efficiency of the remote device 340 are different for different real-time power supply currents (e.g., current I1, current I2, current I3, etc.). The relationship between the three can be expressed as η ═ f (U, I). As can be seen from fig. 8, 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 maximum value, which is about 89.10%.
In step 702, the second monitoring module 321 may calculate and obtain the current real-time power supply efficiency of the remote device 340 according to the input power supply voltage U5 and the real-time power supply current I at the input port of the remote device 340, for example, may first calculate and obtain the real-time power supply power P2 (e.g., P2 — U5 — I) of the remote device 340, and then calculate a ratio of the real-time power supply power P2 to the preset power supply power P0, so as to obtain the current real-time power supply efficiency η 2 — P2/P0 — 60% of the remote device 340.
It should be noted that, since the equivalent impedance of the conductive cable 330 in the power supply system varies with the real-time power supply current in the power supply system and the variation of the difference value between U4 and U5, the variation of the equivalent impedance of the conductive cable 330 is also affected by the number of loads in the remote device 340, the temperature of the environment, and other factors.
Table 2 shows a wire-cable equivalent impedance relationship table in the embodiment of the present application. As shown in table 2, the equivalent impedance of the wire resistor with different cross-sectional areas is different at different ambient temperatures. For example, when the cross-sectional area of the conductive cable is 2.5 square millimeters, the resistance per kilometer at normal temperature is 7.98 ohms, while the resistance per kilometer of the conductive cable in a high-temperature environment is 8.94 ohms. If the conductive wire is long (e.g., 10 kilometers), the equivalent impedance of the conductive wire is large (e.g., 7.98 × 10 — 79.8 ohms, or 8.94 × 10 — 89.4 ohms).
TABLE 2 wire and cable equivalent impedance relationship table
For example, from the resistivity ρ of the conductive wire 330 and the length L of the conductive wire, the equivalent impedance R of the conductive wire is calculated, i.e., R ═ ρ × L. When two conductive cables are parallel, the strength of the inductance between the two conductive cables also affects the equivalent impedance of the conductive cables. For example, when current flows into conductive wire a and then flows out of conductive wire B, the inductance between the two conductive wires is calculated by the formula:
In specific implementation, the method can also utilize a formula through an automatic calculation mode set by a program: the equivalent impedance of the conductive cable 330 is obtained by calculation for (U2-U3)/I.
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 changes, and since the equivalent impedance R of the wire cable 330 remains unchanged under certain conditions, it is inevitable that U4 and U5 change. The power supply voltage on the conductive cable 330 can be calculated by the formula Δ U — U5-U4, when Δ U varies greatly, the real-time power supply efficiency η 2 of the remote device 340 does not reach the preset power supply efficiency, and at this time, the first power supply 310 and the second power supply 320 are required to simultaneously provide power for the remote device 340, so as to ensure the normal operation of the remote device 340.
In step 803, comparing the current real-time power supply efficiency of 60% of the remote device 340 with the preset power supply efficiency of 84.9%, the real-time power supply efficiency is significantly smaller than the preset power supply efficiency. At this time, the power supply efficiency of the remote device 340 cannot be optimized, and more power is required to provide services for the remote device 340. For example, the boost module 322 boosts the dc voltage input by the first power supply 310 to obtain a boosted dc voltage, and then outputs the boosted dc voltage to the remote device 340 through the conductive cable 330, so as to improve the real-time power supply efficiency of the remote device 340.
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, and considering that 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 to ensure the safety when the remote device 340 suddenly powers off the load, for example, the formula U5 satisfies the following formula: u5 ═ min { U5, Umax }, where Umax denotes a load withstand voltage value.
Fig. 9 shows an effect diagram of controlling the output supply voltage of the power supply in the embodiment of the present application. As shown in fig. 9, when the remote device 340 suddenly powers down the load, that is, the voltage across the load of the remote device 340 suddenly drops to 0V, the output power supply voltage of the first power supply 310 is controlled not to exceed the load withstand voltage value (for example, 60V) in the above manner. Where Vout represents the load withstand voltage value of the remote device 340; iin represents the real-time input current value; io represents the output supply current of the power supply terminal.
For example, any one of a controller area network (lan) mode, a point-to-point interface communication mode, a short-distance communication mode, a wireless communication network mode, a serial communication mode and a power line communication mode may be adopted to output the power supply parameters (e.g., the power supply voltage) output by the second power source 320 to the remote device 340 in real time, so as to dynamically adjust the input power supply parameters (e.g., the input power supply voltage and the real-time power supply current) of the remote device 340.
In this embodiment, the second monitoring module monitors the power supply condition in the power supply system, controls the automatic transfer switching device in time, adjusts the structure of the circuit, and ensures the optimization of the power supply efficiency of the remote device. And a boosting module in the second power supply is used for boosting the direct-current voltage input by the first power supply to obtain boosted direct-current voltage, and then the boosted direct-current voltage is output to the remote equipment through the conductive cable so as to improve the real-time power supply efficiency of the remote equipment.
Hereinafter, a power supply device according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. Fig. 10 is a schematic structural diagram of a power supply device according to an embodiment of the present invention. As shown in fig. 10, the power supply device may include the following modules.
The calculating module 410 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.
The determining module 420 is configured to determine a power output parameter for supplying power to the remote device according to a preset power supply efficiency and a real-time power supply efficiency.
The adjusting module 430 is configured to adjust the input power supply parameter of the remote device according to the power output parameter.
According to the power supply device, the real-time power supply efficiency of the remote equipment is calculated and obtained through the calculation module according to the detection information of the remote equipment, so that whether the remote equipment reaches the optimal power supply efficiency can be dynamically detected; the determining module is used for determining the power output parameters output to the remote equipment according to the preset power supply efficiency and the real-time power supply efficiency, so that the adjusting module can adjust the input power supply parameters of the remote equipment according to the power output parameters, dynamic control over the input power supply parameters of the remote equipment is realized, unsafe factors caused by frequent fluctuation of loads of the remote equipment are reduced, safe and efficient operation of the remote equipment is ensured, interruption of a communication network is avoided, and the power supply safety of the communication network is improved.
It is to be understood that the invention is not limited to the particular arrangements and instrumentality described in the above embodiments and shown in the drawings. For convenience and brevity of description, detailed description of a known method is omitted here, and for the specific working processes of the system, the module and the unit described above, reference may be made to corresponding processes in the foregoing method embodiments, which are not described herein again.
Fig. 11 is a block diagram illustrating an exemplary hardware architecture of an electronic device capable of implementing a power supply method and apparatus according to an embodiment of the present invention.
As shown in fig. 11, the electronic device 500 includes an input device 501, an input interface 502, a central processor 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 connected to each other through a bus 507, and the input device 501 and the output device 506 are connected to the bus 507 through the input interface 502 and the output interface 505, respectively, and further connected to other components of the electronic device 500.
Specifically, the input device 501 receives input information from the outside and transmits the input information to the central processor 503 through the input interface 502; the central processor 503 processes input information based on computer-executable instructions stored in the memory 504 to generate output information, temporarily or permanently stores the output information 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 use by the user.
In one embodiment, the electronic device shown in fig. 11 may be implemented as a network device, which may include: a memory configured to store a program; a processor configured to execute the program stored in the memory to perform the power supply method described in the above embodiments.
In one embodiment, the electronic device shown in fig. 11 may be implemented as a power supply system, which may include: a memory configured to store a program; a processor configured to execute the program stored in the memory to perform the power supply method described in the above embodiments.
The above description is only exemplary embodiments of the present application, and is not intended to limit the scope of the present application. In general, the various embodiments of the application may be implemented in hardware or special purpose 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 which may be executed by a controller, microprocessor or other computing device, although the application is not limited thereto.
Embodiments of the application may be implemented by a data processor of a mobile device executing computer program instructions, for example in a processor entity, or by hardware, or by a combination of software and hardware. The computer program instructions may be assembly instructions, Instruction Set Architecture (ISA) instructions, machine related instructions, microcode, firmware instructions, state setting data, or source code or object code written in any combination of one or more programming languages.
Any logic flow block diagrams in the figures of this application may represent program steps, or may represent interconnected logic circuits, modules, and functions, or may represent a combination of program steps and logic circuits, modules, and functions. The computer program may be stored on a memory. The memory may be of any type suitable to 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 storage devices and systems (digital versatile disks, DVDs, or CD discs), etc. The computer readable medium may include a non-transitory storage medium. The data processor may be of any type suitable to the local technical environment, such as but not limited to general purpose computers, special purpose computers, microprocessors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), programmable logic devices (FGPAs), and processors based on a multi-core processor architecture.
The foregoing has provided by way of exemplary and non-limiting examples a detailed description of exemplary embodiments of the present application. Various modifications and adaptations to the foregoing embodiments may become apparent to those skilled in the relevant arts in view of the following drawings and the appended claims without departing from the scope of the invention. Therefore, the proper scope of the invention is to be determined according to the claims.
Claims (15)
1. A method of supplying power, the method comprising:
calculating to obtain the real-time power supply efficiency of the remote equipment according to the detection information of the remote equipment;
determining a power output parameter for supplying power to the remote equipment according to a preset power supply efficiency and the real-time power supply efficiency;
and adjusting the input power supply parameters of the remote equipment according to the power output parameters.
2. The method according to claim 1, wherein 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 comprises:
obtaining real-time power supply current and equivalent impedance of a conductive cable, wherein the conductive cable is a cable connected with the remote device;
and calculating to obtain the power supply voltage of the conductive cable according to the equivalent impedance and the real-time power supply current of the conductive cable.
3. The method of claim 2, wherein 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 the real-time power supply efficiency is determined to be smaller than the preset power supply efficiency, determining the input power supply voltage of the remote equipment according to the real-time power supply current;
and calculating to obtain the power supply output parameter according to the equivalent impedance of the conductive cable and the input power supply voltage of the remote equipment.
4. The method of claim 3, wherein said determining an input supply voltage of said remote device from said real-time supply current comprises:
inquiring a power supply efficiency parameter table according to the real-time power supply current to obtain the input power supply voltage of the remote equipment corresponding to the preset power supply efficiency;
the power supply efficiency parameter table is a list for representing the corresponding relationship among 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, wherein when the load of the remote device is determined to have a sudden drop according to the detection information of the remote device, the input supply voltage of the remote device is less than or equal to the load withstand voltage of the remote device.
6. The method of claim 1, wherein the power supply output parameter comprises: an output parameter of the first power supply and an output parameter of the second power supply; the adjusting the input power supply parameter of the remote device according to the power output parameter includes:
and if the second power supply is determined to be in fault, adjusting the input power supply parameters of the remote equipment according to the output parameters of the first power supply.
7. The method according to claim 2, wherein 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 comprises:
acquiring a training parameter set, wherein the training parameter set comprises training parameters, and the training parameters comprise input power supply parameters of training remote equipment and 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;
and inputting the test power supply parameters 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 equipment corresponding to the preset power supply efficiency meet the power supply requirement of the test remote equipment.
8. The method of any one of claims 1 to 4, wherein said adjusting an input power parameter of said remote device in accordance with said power output parameter comprises:
and dynamically adjusting the input power supply parameters of the remote equipment in real time according to the power output parameters.
9. The method of claim 8, wherein dynamically adjusting the input power supply parameters of the remote device in real-time according to the power output parameters comprises:
and outputting the power output parameters to the remote equipment in real time by adopting any one of a controller local area network mode, a point-to-point interface communication mode, a short-distance communication mode, a wireless communication network mode, a serial communication mode and a power line communication mode so as to dynamically adjust the input power supply parameters of the remote equipment.
10. The method according to any one of claims 1 to 4, wherein 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 comprises:
and dynamically monitoring power supply parameters between the remote equipment and the remote equipment to obtain the detection information.
11. The method of claim 10, wherein dynamically monitoring power supply parameters with the remote device to obtain the detection information comprises:
sending a detection instruction to the remote device;
and responding to a detection response returned by the remote equipment, and acquiring the detection information, wherein the detection information comprises the input power supply parameters of the remote equipment and the model of the remote equipment.
12. The method of claim 2, wherein obtaining the real-time supply current and the equivalent impedance of the conductive cable comprises:
acquiring real-time power supply current;
calculating to obtain the equivalent impedance of the conductive cable according to the resistivity of the conductive cable and the length of the cable;
or the like, or, alternatively,
and calculating to obtain the equivalent impedance of the conductive cable according to the current of the conductive cable and the voltage difference value on the conductive cable.
13. A power supply apparatus, characterized in that the apparatus comprises:
the calculation module is used for calculating and obtaining the real-time power supply efficiency of the remote equipment according to the detection information of the remote equipment;
the determining module is used for determining a power output parameter for supplying power to the remote equipment according to preset power supply efficiency and the real-time power supply efficiency;
and the adjusting module is used for adjusting the input power supply parameters of the remote equipment according to the power output parameters.
14. A network device, comprising:
one or more processors;
a memory having one or more programs stored thereon, which when executed by the one or more processors, cause the one or more processors to implement the power supply method of any one of claims 1-12.
15. A readable storage medium, characterized in that the readable storage medium stores a computer program which, when executed by a processor, implements the power supply method according to any one of claims 1 to 12.
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| JP2023501541A JP7474381B2 (en) | 2020-07-10 | 2021-07-08 | Power supply method, apparatus, network device and readable storage medium |
| PCT/CN2021/105096 WO2022007868A1 (en) | 2020-07-10 | 2021-07-08 | Power supply method and apparatus, network device, and readable storage medium |
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| WO2024067553A1 (en) * | 2022-09-30 | 2024-04-04 | 华为技术有限公司 | Power distribution method and device |
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| CN115377960A (en) * | 2022-09-08 | 2022-11-22 | 中国联合网络通信集团有限公司 | Power conversion device, method, system, electronic device and medium |
| CN118091376B (en) * | 2024-04-22 | 2024-07-26 | 深圳市智仁科技有限公司 | Power supply analysis method, device and equipment of main board and storage medium |
| CN118134220B (en) * | 2024-05-08 | 2024-07-05 | 广东南方电信规划咨询设计院有限公司 | Intelligent power supply configuration method and device |
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| JP2023534209A (en) | 2023-08-08 |
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| JP7474381B2 (en) | 2024-04-24 |
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