CN114899893B - Power line communication module, power line communication device, power line communication method, power line communication system and storage medium - Google Patents
Power line communication module, power line communication device, power line communication method, power line communication system and storage medium Download PDFInfo
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- CN114899893B CN114899893B CN202210514513.9A CN202210514513A CN114899893B CN 114899893 B CN114899893 B CN 114899893B CN 202210514513 A CN202210514513 A CN 202210514513A CN 114899893 B CN114899893 B CN 114899893B
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- 230000005611 electricity Effects 0.000 claims description 5
- 238000004590 computer program Methods 0.000 claims description 3
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J4/00—Circuit arrangements for mains or distribution networks not specified as ac or dc
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00007—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using the power network as support for the transmission
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/10—Current supply arrangements
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- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
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- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
The invention discloses a power line communication module, equipment, a communication method, a system and a storage medium, wherein the power line communication module comprises: the power supply end is used for being electrically connected with the load end through a power line; the first adjusting module is in communication connection with the power supply end; the second adjusting module is in communication connection with the first adjusting module through a power line and is used for being in communication connection with a load end; the second adjusting module is used for acquiring the load parameters of the load end and transmitting the load parameters to the first adjusting module through the power line, and the first adjusting module is used for outputting corresponding feedback signals to the power supply end according to the load parameters so that the power supply end outputs power supply signals matched with the load parameters to the load end through the power line. The power line communication module disclosed by the invention can solve the technical problem that the conventional power line cannot differentially provide the adaptive power supply according to different load demands, so that the use is inconvenient.
Description
Technical Field
The invention belongs to the technical field of power supply equipment, and particularly relates to a power line communication module, power supply equipment, a power line communication method, a power line communication system and a computer readable storage medium.
Background
The power line (or power line) is an electric line for transmitting electric current, and the power line is generally used for transmitting electric current in a point-to-point manner from a power supply end to a load end, and can be divided into an AC power line and a DC power line according to purposes. Power supply wires are widely used in many fields due to their power supply stability.
With the increasing diversification of load devices, the power supply requirements of different load devices are gradually refined, however, the conventional power line cannot provide an adaptive power supply for the different load devices differently according to the different requirements of the different load devices, so that the use is inconvenient.
Disclosure of Invention
In order to overcome the above-mentioned drawbacks of the prior art, the present invention is directed to a power line communication module, which is aimed at solving the technical problem that the conventional power line cannot differentially provide the adaptive power supply according to different load requirements, resulting in inconvenient use.
The invention adopts the following technical scheme to achieve the aim of the invention:
a power line communication module, the power line communication module comprising:
the power supply end is used for being electrically connected with the load end through a power line;
the first adjusting module is in communication connection with the power supply end;
the second adjusting module is in communication connection with the first adjusting module through the power line and is used for being in communication connection with the load end;
the second adjusting module is used for acquiring the load parameter of the load end and transmitting the load parameter to the first adjusting module through the power line, and the first adjusting module is used for outputting a corresponding feedback signal to the power supply end according to the load parameter so that the power supply end outputs a power signal matched with the load parameter to the load end through the power line.
Further, the power line communication module further comprises a first power end, the first power end is electrically connected with the power line through a change-over switch, and the change-over switch is in communication connection with the second regulation module; wherein, the voltage of the first power supply end and the voltage of the power supply end have a voltage difference;
the second adjusting module is used for controlling the on-off of the change-over switch according to the load parameter so as to generate a corresponding digital signal on the power line through the on-off of the change-over switch for a plurality of times, and the first adjusting module is used for outputting the corresponding feedback signal to the power supply end according to the digital signal.
Further, the first power supply end is a constant voltage source, and the power line communication module further comprises a current limiting resistor, wherein the current limiting resistor is electrically connected to the power line.
Further, the power line communication module further comprises a power supply switch, the power supply switch is electrically connected to the power line, the current limiting resistor is connected in parallel to two ends of the power supply switch, the first adjusting module is in communication connection with the power supply switch, and the first adjusting module is used for controlling on-off of the power supply switch.
Correspondingly, the invention also provides power supply equipment which comprises the power line communication module.
Correspondingly, the invention also provides a power line communication method which is applied to the power line communication module, and the power line communication method comprises the following steps:
the second adjusting module is used for acquiring the load parameters of the load end and transmitting the load parameters to the first adjusting module through the power line;
the first adjusting module outputs a corresponding feedback signal to the power supply end according to the load parameter;
and the power supply end outputs a power supply signal matched with the load parameter to the load end through the power line according to the feedback signal so as to supply power to the load end.
Further, the power line communication module further comprises a first power supply end, a change-over switch, a current-limiting resistor and a power supply switch, wherein the first power supply end is a constant voltage source, the first power supply end is electrically connected with the power supply line through the change-over switch, the change-over switch is in communication connection with the second regulating module, the power supply switch is electrically connected to the power supply line, the current-limiting resistor is connected in parallel with two ends of the power supply switch, and the first regulating module is in communication connection with the power supply switch;
before the step of obtaining the load parameter of the load end through the second adjusting module and transmitting the load parameter to the first adjusting module through the power line, the method comprises the following steps:
the power supply end outputs a first electric signal to the first adjusting module so as to enable the first adjusting module to obtain electricity;
the first regulating module outputs a closing signal to the power supply switch so that the power supply end outputs the first electric signal to the second regulating module through the current limiting resistor to enable the second regulating module to obtain electricity;
the step of obtaining the load parameter of the load end through the second adjusting module and transmitting the load parameter to the first adjusting module through the power line includes:
the second adjusting module controls the on-off of the change-over switch according to the load parameter; the voltage of the power line is equal to the voltage of the power supply end when the change-over switch is disconnected, and the voltage of the power line is equal to the voltage of the first power end when the change-over switch is conducted, so that corresponding digital signals are generated on the power line through a plurality of times of on-off of the change-over switch;
the step that the first adjusting module outputs a corresponding feedback signal to the power supply end according to the load parameter includes:
the first adjusting module outputs the corresponding feedback signal to the power supply end according to the digital signal.
Further, the step that the power supply end outputs a power signal adapted to the load parameter to the load end through the power line according to the feedback signal, so as to supply power to the load end includes:
the first adjusting module outputs an opening signal to the power supply switch so that the power supply end outputs a power supply signal matched with the load parameter to the load end through the power supply switch;
the second regulating module outputs a receiving signal to the load end so that the load end starts to receive the power supply signal.
Correspondingly, the invention also provides a power line communication system, which comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the computer program is executed by the processor to realize the steps of the power line communication method.
Correspondingly, the invention also provides a computer readable storage medium, wherein the computer readable storage medium stores a power line communication program, and the power line communication program realizes the steps of the power line communication method when being executed by a processor.
Compared with the prior art, the invention has the beneficial effects that:
according to the power line communication module, the second adjusting module is used for acquiring the load parameters of the load end and transmitting the load parameters to the first adjusting module through the power line, and the first adjusting module is used for outputting the corresponding feedback signals to the power supply end according to the load parameters, so that the power supply end can output the power signals matched with the load parameters to the load end through the power line, the limitation that the traditional power line can only be used for supplying power to the load is broken through, the power line can provide corresponding power output according to the requirements of the load end, the functions of the power line are expanded, and the use convenience and user experience of power supply equipment are improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a connection structure of an embodiment of a power line communication module according to the present invention;
fig. 2 is a flow chart of an embodiment of a power line communication method according to the present invention;
fig. 3 is a flowchart of another embodiment of the power line communication method of the present invention;
fig. 4 is a schematic system architecture diagram of a hardware running environment according to an embodiment of the present invention.
Reference numerals illustrate:
| reference numerals | Name of the name | Reference numerals | Name of the name |
| 1 | Power supply terminal | 6 | A first power supply terminal |
| 2 | Load end | 7 | Change-over switch |
| 3 | Power line | 8 | Current limiting resistor |
| 4 | First adjusting module | 9 | Power supply switch |
| 5 | Second adjusting module |
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, if a directional indication (such as up, down, left, right, front, and rear … …) is involved in the embodiment of the present invention, the directional indication is merely used to explain the relative positional relationship, movement condition, etc. between the components in a specific posture, and if the specific posture is changed, the directional indication is correspondingly changed.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, if "and/or" and/or "are used throughout, the meaning includes three parallel schemes, for example," a and/or B "including a scheme, or B scheme, or a scheme where a and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
Referring to fig. 1, an embodiment of the present invention provides a power line communication module, which includes:
the power supply end 1 is used for being electrically connected with the load end 2 through the power line 3;
the first adjusting module 4 is in communication connection with the power supply end 1;
the second adjusting module 5 is in communication connection with the first adjusting module 4 through the power line 3, and the second adjusting module 5 is used for being in communication connection with the load end 2;
the second adjusting module 5 is configured to obtain a load parameter of the load end 2 and transmit the load parameter to the first adjusting module 4 through the power line 3, and the first adjusting module 4 is configured to output a corresponding feedback signal to the power supply end 1 according to the load parameter, so that the power supply end 1 outputs a power signal adapted to the load parameter to the load end 2 through the power line 3.
In this embodiment, the power supply terminal 1 may be a power supply output terminal of a power supply device having a power supply function, or may be a conversion device (including a module such as a power supply modulation unit) of an external power supply; the load terminal 2 may specifically be an electrical consumer for receiving electrical energy provided by the power supply terminal 1. The first adjusting module 4 and the second adjusting module 5 may be specifically an MCU micro control unit (Microcontroller Unit) for receiving, processing and outputting corresponding signals, and implementing a communication function in cooperation with other modules. The power line 3 (or called a power line) is an electric wire for transmitting electric current, illustratively, the power line 3 includes an upper positive electrode and a lower ground electrode, the power supply end 1 can supply power to the load end 2, the first adjusting module 4 and the second adjusting module 5 through the power line 3, so that the first adjusting module 4 and the second adjusting module 5 enter into an electrical working state, and the power line 3 can be used for transmitting electric signals between the first adjusting module 4 and the second adjusting module 5.
The load parameters of the load end 2 comprise relevant parameters such as voltage, current and equipment ID (identity) which can represent the power supply requirement of the load equipment, after the second adjusting module 5 obtains the load parameters of the load end 2 through the IO communication port, the load parameters can be converted into electric signals which can be transmitted to the first adjusting module 4 through the power line 3 through the modules such as the analog-to-digital conversion component, and the first adjusting module 4 can feed back the electric signals to the power supply end 1 through the IO communication port after receiving the electric signals, so that the power supply end 1 provides corresponding power supply according to the power supply requirement of the load end 2 and outputs the corresponding power to the power line 3 to supply the power for the load end 2.
Therefore, it can be seen that the power line communication module provided in this embodiment obtains the load parameter of the load end 2 through the second adjusting module 5 and transmits the load parameter to the first adjusting module 4 through the power line 3, and the first adjusting module 4 outputs the corresponding feedback signal to the power supply end 1 according to the load parameter, so that the power supply end 1 can output the power signal adapted to the load parameter to the load end 2 through the power line 3, thereby breaking through the limitation that the conventional power line 3 can only be used for supplying power to the load, so that the power line 3 can provide the corresponding power output according to the requirement of the load end 2, expanding the function of the power line 3, and improving the use convenience and user experience of the power supply equipment.
Further, referring to fig. 1, in an exemplary embodiment, the power line communication module further includes a first power terminal 6, the first power terminal 6 is electrically connected to the power line 3 through a switch 7, and the switch 7 is communicatively connected to the second adjustment module 5; wherein, the voltage of the first power supply terminal 6 has a voltage difference with the voltage of the power supply terminal 1;
the second adjusting module 5 is configured to control on-off of the switch 7 according to the load parameter, so as to generate a corresponding digital signal on the power line 3 through a plurality of on-off of the switch 7, and the first adjusting module 4 is configured to output a corresponding feedback signal to the power supply terminal 1 according to the digital signal.
In the present embodiment, the change-over switch 7 may be an electromagnetic switch, a field effect transistor, or the like, which can be controlled to be turned on or off by an electric signal output from the second adjusting module 5, and is not limited herein. When the change-over switch 7 is turned off, the power line 3 is only communicated with the power supply end 1, and the voltage on the power line 3 corresponds to the voltage of the power supply end 1; when the change-over switch 7 is closed, the power line 3 is electrically connected with the power supply terminal 1 and the first power supply terminal 6, and at this time, the voltage on the power line 3 corresponds to the voltage of the power supply terminal 1 and the voltage of the first power supply terminal 6. Since the voltage of the first power supply terminal 6 and the voltage of the power supply terminal 1 have a voltage difference, when the switch 7 is in an open or closed state, there will be a difference in the voltage on the power line 3, specifically, elements for reducing or increasing voltage may be correspondingly disposed at the power supply terminal 1 and/or the first power supply terminal 6, so that the voltage on the power line 3 may be stably pulled down or lifted to different voltage values in the open state and the closed state of the switch 7, and the specific setting manner may be flexibly adjusted according to the actual condition of the circuit, which is not limited herein.
It can be appreciated that the second adjusting module 5 may convert the obtained load parameter into a digital signal, and control the on/off of the switch 7 according to the digital signal. Specifically, the first adjusting module 4 may preset a voltage threshold value, which should be between the voltage value of the power line 3 when the switch 7 is turned off and the voltage value of the power line 3 when the switch 7 is turned on, and take the voltage of the power line 3 higher than the voltage threshold value as a high level, take the voltage of the power line 3 lower than the voltage threshold value as a low level, take the high level as "1" in the digital circuit, and take the low level as "0" in the digital circuit. In this way, through the multiple on-off switching of the switch 7, a digital signal containing a plurality of "1" s and/or "0" s can be generated on the power line 3, where the digital signal corresponds to the load parameter, and when the first adjusting module 4 obtains the digital signal through the power line 3, the load parameter of the load end 2 can be read out.
Specifically, referring to fig. 1, the first power supply terminal 6 is a constant voltage source, and the power line communication module further includes a current limiting resistor 8, where the current limiting resistor 8 is electrically connected to the power line 3.
The constant voltage source may output a constant voltage to the power line 3, which may be lower than the voltage of the power supply terminal 1. Taking the output voltage of the power supply terminal 1 as 5V and the output voltage of the constant voltage source as 4V as an example, when the change-over switch 7 is closed, the voltage of the power line 3 is equal to the constant voltage source voltage (4V) due to the current-limiting and voltage-reducing effects of the current-limiting resistor 8, and when the change-over switch 7 is opened, the voltage of the power line 3 is equal to the voltage of the power supply terminal 1 (5V). The voltage threshold may be set between 4V and 5V, with 4V being low and 5V being high. Through the arrangement, the voltage value of the power line 3 is equal to the voltage of the power supply terminal 1 or the voltage of the first power supply terminal 6 and is kept stable, so that the output of the digital signal on the power line 3 is more accurate.
Further, referring to fig. 1, in an exemplary embodiment, the power line communication module further includes a power switch 9, the power switch 9 is electrically connected to the power line 3, the current limiting resistor 8 is connected in parallel to two ends of the power switch 9, the first adjusting module 4 is communicatively connected to the power switch 9, and the first adjusting module 4 is used for controlling on/off of the power switch 9.
In this embodiment, the power supply switch 9 may be an electromagnetic switch, a field effect transistor, or the like, which can be controlled to be turned on or off by an electrical signal output from the first adjustment module 4. When the power supply terminal 1 needs to supply power to the load terminal 2, the power supply terminal 1 outputs a low voltage (for example, 5V) to the first adjusting module 4, so that the first adjusting module 4 outputs a closing signal to the power supply switch 9 after being electrified, the branch where the power supply switch 9 is located is disconnected, and at the moment, the power supply terminal 1 supplies power to the second adjusting module 5 through the branch where the current limiting resistor 8 is located, so that the second adjusting module 5 obtains the load parameter of the load terminal 2 and executes subsequent operations. When the power supply terminal 1 provides a corresponding power supply output to the power line 3 according to the power supply requirement of the load terminal 2, the first adjusting module 4 synchronously outputs an opening signal to the power supply switch 9, so that the branch where the power supply switch 9 is located is conducted, and the power supply terminal 1 can supply power to the load terminal 2 through the branch where the power supply switch 9 is located.
Correspondingly, the embodiment of the invention also provides power supply equipment, which comprises the power line communication module in any embodiment.
In this embodiment, the power supply device, that is, the device for supplying power to the load terminal 2, may specifically be a power supply device having a power supply function, a conversion device for converting an output of an external power supply and then supplying the converted output to the load terminal 2, and the like, which is not limited herein. For details of the power line communication module, reference may be made to the above embodiments. The power supply device adopts all the technical schemes of all the embodiments, so that the power supply device has at least all the beneficial effects brought by the technical schemes of the embodiments, and the description is omitted herein.
It should be noted that, other contents of the power line communication module and the power supply device disclosed in the present invention can be referred to the prior art, and are not described herein again.
As shown in fig. 4, fig. 4 is a schematic structural diagram of a power line communication system according to an embodiment of the present invention.
As shown in fig. 4, the power line communication system may include: a processor 1001, such as a CPU, a network interface 1004, a user interface 1003, a memory 1005, a communication bus 1002. Wherein the communication bus 1002 is used to enable connected communication between these components. The user interface 1003 may include a Display, an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may further include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface). The memory 1005 may be a high-speed RAM memory or a stable memory (non-volatile memory), such as a disk memory. The memory 1005 may also optionally be a storage device separate from the processor 1001 described above.
Optionally, the power line communication system may further include a camera, an RF (Radio Frequency) circuit, a sensor, an audio circuit, a WiFi module, and the like. The sensor may include a collision sensor, a laser radar, a binocular sensor, an ultrasonic sensor, a light sensor, a motion sensor, an infrared sensor, and other sensors, which will not be described herein.
Those skilled in the art will appreciate that the particular structure shown in fig. 4 is not limiting of the power line communication system and may include more or fewer components than shown, or may combine certain components, or may be a different arrangement of components.
As shown in fig. 4, an operating system, a network communication module, a user interface module, and a power line communication program may be included in a memory 1005 as one type of computer-readable storage medium.
In the power line communication system shown in fig. 4, the processor 1001 may be configured to call a power line communication program stored in the memory 1005 and perform the following operations:
the second adjusting module 5 acquires the load parameters of the load end 2 and transmits the load parameters to the first adjusting module 4 through the power line 3;
the first adjusting module 4 outputs a corresponding feedback signal to the power supply end 1 according to the load parameter;
the power supply terminal 1 outputs a power signal adapted to the load parameter to the load terminal 2 through the power line 3 according to the feedback signal, so as to supply power to the load terminal 2.
Further, the processor 1001 may call a power line communication program stored in the memory 1005, and perform the following operations:
the power supply end 1 outputs a first electric signal to the first regulating module 4 so as to enable the first regulating module 4 to obtain power;
the first adjusting module 4 outputs a closing signal to the power supply switch 9, so that the power supply terminal 1 outputs a first electric signal to the second adjusting module 5 through the current limiting resistor 8, and the second adjusting module 5 is powered.
Further, the processor 1001 may call a power line communication program stored in the memory 1005, and perform the following operations:
the second regulating module 5 controls the on-off of the change-over switch 7 according to the load parameter; wherein, the voltage of the power line 3 is equal to the voltage of the power supply terminal 1 when the change-over switch 7 is turned off, and the voltage of the power line 3 is equal to the voltage of the first power supply terminal 6 when the change-over switch 7 is turned on, thereby generating a digital signal corresponding to the load parameter on the power line 3.
Further, the processor 1001 may call a power line communication program stored in the memory 1005, and perform the following operations:
the first adjusting module 4 outputs a corresponding feedback signal to the power supply terminal 1 according to the digital signal.
Further, the processor 1001 may call a power line communication program stored in the memory 1005, and perform the following operations:
the first adjusting module 4 outputs an opening signal to the power supply switch 9 so that the power supply terminal 1 outputs a power supply signal matched with the load parameter to the load terminal 2 through the power supply switch 9;
the second adjusting module 5 outputs a receiving signal to the load terminal 2, so that the load terminal 2 starts to receive the power signal.
Referring to fig. 1 and 2, an embodiment of the present invention provides a power line communication method, which is applied to the power line communication module in any of the above embodiments, and includes the following steps:
s1, acquiring load parameters of a load end 2 through a second adjusting module 5 and transmitting the load parameters to a first adjusting module 4 through a power line 3;
s2, the first adjusting module 4 outputs a corresponding feedback signal to the power supply end 1 according to the load parameter;
and S3, the power supply terminal 1 outputs a power supply signal matched with the load parameter to the load terminal 2 through the power line 3 according to the feedback signal so as to supply power to the load terminal 2.
The power supply end 1 may be a power supply output end of a power supply device with a power supply function, or may be a conversion device (including a power supply modulation unit and other modules) of an external power supply; the load terminal 2 may specifically be an electrical consumer for receiving electrical energy provided by the power supply terminal 1. The first adjusting module 4 and the second adjusting module 5 may be specifically an MCU micro control unit (Microcontroller Unit) for receiving, processing and outputting corresponding signals, and implementing a communication function in cooperation with other modules. The power line 3 (or called a power line) is an electric wire for transmitting current, the power supply end 1 can supply power to the load end 2, the first adjusting module 4 and the second adjusting module 5 through the power line 3, so that the first adjusting module 4 and the second adjusting module 5 enter an electric power obtaining state, and the power line 3 can be used for transmitting electric signals between the first adjusting module 4 and the second adjusting module 5.
The load parameters of the load end 2 comprise relevant parameters such as voltage, current and equipment ID (identity) which can represent the power supply requirement of the load equipment, after the second adjusting module 5 obtains the load parameters of the load end 2 through the IO communication port, the load parameters can be converted into electric signals which can be transmitted to the first adjusting module 4 through the power line 3 through the modules such as the analog-to-digital conversion component, and the first adjusting module 4 can feed back the electric signals to the power supply end 1 through the IO communication port after receiving the electric signals, so that the power supply end 1 provides corresponding power supply according to the power supply requirement of the load end 2 and outputs the corresponding power to the power line 3 to supply the power for the load end 2.
Further, referring to fig. 1 to 3, in an exemplary embodiment, the power line communication module further includes a first power terminal 6, a switch 7, a current limiting resistor 8, and a power supply switch 9, where the first power terminal 6 is a constant voltage source, the first power terminal 6 is electrically connected to the power line 3 through the switch 7, the switch 7 is communicatively connected to the second adjustment module 5, the power supply switch 9 is electrically connected to the power line 3, the current limiting resistor 8 is connected in parallel to two ends of the power supply switch 9, and the first adjustment module 4 is communicatively connected to the power supply switch 9;
before step S1, the method includes:
s01, the power supply end 1 outputs a first electric signal to the first adjusting module 4 so as to enable the first adjusting module 4 to obtain electricity;
s02, the first adjusting module 4 outputs a closing signal to the power supply switch 9, so that the power supply terminal 1 outputs a first electrical signal to the second adjusting module 5 through the current limiting resistor 8, so that the second adjusting module 5 is powered.
Specifically, referring to fig. 1 to 3, step S1 includes:
s11, the second regulating module 5 controls the on-off of the change-over switch 7 according to the load parameter; the voltage of the power line 3 is equal to the voltage of the power supply terminal 1 when the switch 7 is turned off, and the voltage of the power line 3 is equal to the voltage of the first power supply terminal 6 when the switch 7 is turned on, so that a corresponding digital signal is generated on the power line 3 through several on-off of the switch 7.
Specifically, referring to fig. 1 to 3, step S2 includes:
s21, the first adjusting module 4 outputs a corresponding feedback signal to the power supply end 1 according to the digital signal.
Specifically, referring to fig. 1 to 3, step S3 includes:
s31, the first regulating module 4 outputs an opening signal to the power supply switch 9, so that the power supply terminal 1 outputs a power supply signal matched with load parameters to the load terminal 2 through the power supply switch 9;
s32, the second adjusting module 5 outputs the received signal to the load terminal 2, so that the load terminal 2 starts to receive the power signal.
The change-over switch 7 may be a switching device such as an electromagnetic switch or a field-effect transistor, which can be controlled to be turned on or off by an electric signal output from the second adjusting module 5, and the power supply switch 9 may be a switching device such as an electromagnetic switch or a field-effect transistor, which can be controlled to be turned on or off by an electric signal output from the first adjusting module 4, which is not limited herein.
When the power supply terminal 1 needs to supply power to the load terminal 2, the power supply terminal 1 outputs a low voltage (for example, 5V) to the first adjusting module 4, so that the first adjusting module 4 outputs a closing signal to the power supply switch 9 after being electrified, the branch where the power supply switch 9 is located is disconnected, and at the moment, the power supply terminal 1 supplies power to the second adjusting module 5 through the branch where the current limiting resistor 8 is located, so that the second adjusting module 5 enters a working state and obtains load parameters of the load terminal 2.
Specifically, when the change-over switch 7 is turned off, the power line 3 is only connected to the power supply terminal 1, and the voltage on the power line 3 corresponds to the voltage of the power supply terminal 1; when the change-over switch 7 is closed, the power line 3 is electrically connected with the power supply terminal 1 and the first power supply terminal 6, and at this time, the voltage on the power line 3 corresponds to the voltage of the power supply terminal 1 and the voltage of the first power supply terminal 6. Since there is a voltage difference between the voltage of the first power supply terminal 6 and the voltage of the power supply terminal 1, there will be a difference in the voltage on the power line 3 when the change-over switch 7 is in the open or closed state. When the first power terminal 6 is a constant voltage source, the constant voltage source may output a constant voltage to the power line 3, which may be lower than the voltage of the power supply terminal 1. Taking the output voltage of the power supply terminal 1 as 5V and the output voltage of the constant voltage source as 4V as an example, when the change-over switch 7 is closed, the voltage of the power line 3 is equal to the constant voltage source voltage (4V) due to the current-limiting and voltage-reducing effects of the current-limiting resistor 8, and when the change-over switch 7 is opened, the voltage of the power line 3 is equal to the voltage of the power supply terminal 1 (5V).
It can be appreciated that the second adjusting module 5 may convert the obtained load parameter into a digital signal, and control the on/off of the switch 7 according to the digital signal. In particular, the first regulation module 4 may preset a voltage threshold value that should lie between the voltage value of the power line 3 when the switch 7 is open and the voltage value of the power line 3 when the switch 7 is closed. Taking the case when the output voltage of the power supply terminal 1 is 5V as an example, the voltage threshold may be set between 4V and 5V, with 4V being low, 5V being high, and high being "1" in the digital circuit, and low being "0" in the digital circuit. In this way, the second adjusting module 5 controls the on-off switching of the switch 7 for multiple times, so that a digital signal containing a plurality of '1's and/or '0's can be generated on the power line 3, the digital signal corresponds to the load parameter, and when the first adjusting module 4 obtains the digital signal through the power line 3, the load parameter of the load end 2 can be read out and transmitted to the power supply end 1.
When the power supply terminal 1 provides corresponding power supply output to the power line 3 according to the power supply requirement of the load terminal 2, the first regulating module 4 synchronously outputs an opening signal to the power supply switch 9 to enable the branch where the power supply switch 9 is positioned to be conducted, and at the moment, the power supply terminal 1 can supply power to the load terminal 2 through the branch where the power supply switch 9 is positioned; meanwhile, the second adjusting module 5 outputs a receiving signal to the load end 2 through the IO communication port, so that the load end 2 starts to receive the electric energy output by the power supply end 1 through the power line 3.
Correspondingly, the embodiment of the invention also provides a computer readable storage medium, wherein the computer readable storage medium stores a power line communication program, and the power line communication program realizes the steps of the power line communication method in any embodiment when being executed by a processor.
In this embodiment, the above-mentioned computer readable storage medium may include, but is not limited to, any type of disk (including floppy disks, hard disks, optical disks, CD-ROMs, and magneto-optical disks), ROMs (Read-Only memories), RAMs (Random AccessMemory, random access memories), EPROMs (Erasable Programmable Read-Only memories), EEPROMs (Electrically Erasable Programmable Read-Only memories), flash memories, magnetic or optical cards, and other various media capable of storing program codes.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) as described above, comprising instructions for causing a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the method according to the embodiments of the present invention.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.
Claims (8)
1. The utility model provides a power line communication module, its characterized in that, power line communication module includes:
the power supply end is used for being electrically connected with the load end through a power line;
the first adjusting module is in communication connection with the power supply end;
the second adjusting module is in communication connection with the first adjusting module through the power line and is used for being in communication connection with the load end;
the second adjusting module is used for acquiring the load parameter of the load end and transmitting the load parameter to the first adjusting module through the power line, and the first adjusting module is used for outputting a corresponding feedback signal to the power supply end according to the load parameter so that the power supply end outputs a power supply signal matched with the load parameter to the load end through the power line;
the power line communication module further comprises a first power end, wherein the first power end is electrically connected with the power line through a change-over switch, and the change-over switch is in communication connection with the second regulation module; wherein, the voltage of the first power supply end and the voltage of the power supply end have a voltage difference;
the second adjusting module is used for controlling the on-off of the change-over switch according to the load parameter so as to generate a corresponding digital signal on the power line through the on-off of the change-over switch for a plurality of times, and the first adjusting module is used for outputting the corresponding feedback signal to the power supply end according to the digital signal.
2. The power line communication module of claim 1, wherein the first power supply terminal is a constant voltage source, and further comprising a current limiting resistor electrically connected to the power line.
3. The power line communication module according to claim 2, further comprising a power supply switch, wherein the power supply switch is electrically connected to the power line, the current limiting resistor is connected in parallel to two ends of the power supply switch, the first adjusting module is connected with the power supply switch in a communication manner, and the first adjusting module is used for controlling on-off of the power supply switch.
4. A power supply apparatus, characterized in that the power supply apparatus comprises the power line communication module according to any one of claims 1 to 3.
5. A power line communication method applied to the power line communication module set as claimed in any one of claims 1 to 3, wherein the power line communication module set further comprises a current limiting resistor and a power supply switch, the first power supply end is a constant voltage source, the power supply switch is electrically connected to the power supply wire, the current limiting resistor is connected in parallel to the two ends of the power supply switch, and the first regulation module is in communication connection with the power supply switch;
the power line communication method comprises the following steps:
the power supply end outputs a first electric signal to the first adjusting module so as to enable the first adjusting module to obtain electricity;
the first regulating module outputs a closing signal to the power supply switch so that the power supply end outputs the first electric signal to the second regulating module through the current limiting resistor to enable the second regulating module to obtain electricity;
the second adjusting module controls the on-off of the change-over switch according to the load parameter; the voltage of the power line is equal to the voltage of the power supply end when the change-over switch is disconnected, and the voltage of the power line is equal to the voltage of the first power end when the change-over switch is conducted, so that corresponding digital signals are generated on the power line through a plurality of times of on-off of the change-over switch;
the first adjusting module outputs the corresponding feedback signal to the power supply end according to the digital signal;
and the power supply end outputs a power supply signal matched with the load parameter to the load end through the power line according to the feedback signal so as to supply power to the load end.
6. The power line communication method according to claim 5, wherein the step of the power supply terminal outputting a power signal adapted to the load parameter to the load terminal through the power line according to the feedback signal to supply power to the load terminal includes:
the first adjusting module outputs an opening signal to the power supply switch so that the power supply end outputs a power supply signal matched with the load parameter to the load end through the power supply switch;
the second regulating module outputs a receiving signal to the load end so that the load end starts to receive the power supply signal.
7. A power line communication system comprising a memory, a processor and a computer program stored on the memory and executable on the processor, which when executed by the processor performs the steps of the power line communication method according to any one of claims 5 to 6.
8. A computer-readable storage medium, wherein a power line communication program is stored on the computer-readable storage medium, which when executed by a processor, implements the steps of the power line communication method according to any one of claims 5 to 6.
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