CN115441532A - PSE device based on multi-mode energy and signal input and control method thereof - Google Patents

PSE device based on multi-mode energy and signal input and control method thereof Download PDF

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Publication number
CN115441532A
CN115441532A CN202210900502.4A CN202210900502A CN115441532A CN 115441532 A CN115441532 A CN 115441532A CN 202210900502 A CN202210900502 A CN 202210900502A CN 115441532 A CN115441532 A CN 115441532A
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China
Prior art keywords
signal
unit
subunit
ethernet
input
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CN202210900502.4A
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Chinese (zh)
Inventor
马志刚
洪子伟
王玉皞
陈煊邦
刘晓东
王波
蔡琦
胡键
李沛雨
罗贵贤
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Nanchang University
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Nanchang University
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Priority to CN202210900502.4A priority Critical patent/CN115441532A/en
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0063Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0047Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • H02J7/0048Detection of remaining charge capacity or state of charge [SOC]
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0068Battery or charger load switching, e.g. concurrent charging and load supply
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/35Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/02Details
    • H04L12/10Current supply arrangements
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2207/00Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J2207/20Charging or discharging characterised by the power electronics converter

Abstract

The invention provides a PSE device based on multi-mode energy and signal input and a control method thereof, wherein the device comprises a multi-mode power supply module, a PSE module and a communication module, wherein: the multimode power supply module comprises a first power supply unit and a second power supply unit, wherein the first power supply unit is communicated with a third-party energy source, the second power supply unit is communicated with a mains supply, the first power supply unit comprises a third-party energy source conversion subunit, a charge and discharge control subunit and an energy storage subunit, the charge and discharge control subunit is electrically connected with the third-party energy source conversion subunit, the energy storage subunit is electrically connected with the charge and discharge control subunit, the energy storage subunit is respectively connected with the PSE module and the communication module, and the charge and discharge control subunit is electrically connected with the second power supply unit. According to the PSE device based on multi-mode energy and signal input, provided by the invention, the consumption of mains supply energy can be saved, the mains supply load can be reduced, meanwhile, the multi-mode signal can be transmitted, and the robustness of a network can be improved.

Description

PSE device based on multi-mode energy and signal input and control method thereof
Technical Field
The invention relates to the technical field of communication, in particular to a PSE device based on multi-mode energy and signal input and a control method thereof.
Background
POE (Power Over Ethernet, ethernet Power supply) can realize Ethernet network Power supply through 10BASE T, 100BASE TX, 1000BASE T, reliably realize centralized Power supply and convenient to use, network terminal does not need external Power supply, only needs a net twine just can supply Power.
A complete POE system includes two parts, PSE (Power Sourcing Equipment) and PD (Powered Device). The PSE is a device for supplying power to the ethernet client device, and is also a manager of the entire POE ethernet power supply process. And the PD is a PSE load receiving power supply, i.e. a client device of the POE system, such as an LED smart lighting system, an LED positioning system, etc.
In the prior art, the PSE device applied to the lighting system or the positioning system and other equipment adopts a 220V alternating current power supply mode, and uses the mains supply as energy input, the energy input mode is single, the load of the mains supply is greatly increased, and meanwhile, the PSE device is not beneficial to green environmental protection.
Disclosure of Invention
Based on the above, the invention aims to provide a PSE device based on multi-mode energy and signal input and a control method thereof, and the novel PSE device supporting multi-energy input is provided to enrich the energy input scene, save the consumption of commercial power energy and greatly reduce the problem of commercial power load.
According to the PSE device based on multi-modal energy and signal input, the device comprises a multi-modal power supply module, a PSE module and a communication module, wherein:
the multimode power supply module comprises a first power supply unit communicated with a third-party energy source and a second power supply unit communicated with a mains supply, wherein the first power supply unit comprises a third-party energy conversion subunit, a charge and discharge control subunit and an energy storage subunit, the charge and discharge control subunit is electrically connected with the third-party energy conversion subunit, the energy storage subunit is electrically connected with the charge and discharge control subunit, the energy storage subunit is respectively electrically connected with the PSE module and the communication module, and the charge and discharge control subunit is electrically connected with the second power supply unit;
the PSE module is used for supplying power to the communication module, the charging and discharging control subunit is used for monitoring the electric quantity of the energy storage subunit and controlling the charging of the energy storage subunit by third-party energy and/or commercial power.
Further, the second power supply unit includes:
the input end of the alternating current conversion subunit is connected with commercial power and is used for converting the received alternating current into direct current;
the commercial power complementary control subunit is electrically connected with the alternating current conversion subunit and is used for controlling the alternating current conversion subunit to be started when the third-party energy is insufficient in power generation so as to control commercial power to charge the energy storage subunit;
and the DC-DC boosting subunit is electrically connected with the commercial power complementary control subunit and is used for boosting the commercial power voltage output by the alternating current conversion subunit.
Further, the communication module includes:
the third-party signal detection unit is used for detecting the signal type of the third-party signal;
and the Ethernet conversion unit is electrically connected with the third-party signal detection unit and used for calling the corresponding interface standard according to the signal type of the third-party signal and converting the received third-party signal into the Ethernet signal according to the interface standard corresponding to the third-party signal.
Further, the communication module further includes:
the signal rate control unit is electrically connected with the Ethernet conversion unit and is used for controlling the transmission rate of converting third-party signals under different interface standards into Ethernet signals;
and the voltage conversion unit is electrically connected with the signal rate control unit and used for converting the transmission voltage based on the interface standard into a first preset voltage, wherein the first preset voltage is a corresponding bias voltage when the Ethernet signal is subjected to data transmission.
Further, the communication module further includes:
an ethernet signal output unit, a first input terminal of which is electrically connected to the voltage conversion unit and a second input terminal of which is electrically connected to an ethernet signal input unit, for transmitting the ethernet signal received from the ethernet signal input unit and the ethernet signal received from the ethernet conversion unit to the PSE module;
the Ethernet signal input unit is connected with the mobile terminal through a signal transmission module and is used for receiving an illumination brightness signal sent by the mobile terminal.
Further, the PSE module includes:
the PSE control unit is electrically connected with the energy storage subunit through a power supply access unit;
a first PHY unit to provide a physical standard interface for a data link layer to transport an original bitstream.
Further, the device further comprises a plurality of PD modules, and the PSE module further comprises a first POE unit, and the first POE unit is connected to at least one PD module load through an RJ45 interface.
Further, the PD module includes MCU microprocessing unit, with the drive unit that MCU microprocessing unit electricity is connected and with the LED unit that drive unit electricity is connected, MCU microprocessing unit with first POE unit connection, MCU microprocessing unit is used for according to received ethernet signal to drive unit sends control command, drive unit is according to control command drive the LED unit is opened.
Compared with the prior art: the power supply is carried out by adopting a multi-mode energy input mode to replace the traditional mode of simply adopting commercial power to carry out power supply, thereby greatly reducing the load of the commercial power, improving the power supply stability and saving the energy consumption. In addition, control, synchronization and data communication are carried out by utilizing multi-mode signal transmission, so that electromagnetic interference of signals can be avoided or reduced, the defect of unstable communication performance of Ethernet cables is relieved or solved, and the robustness of a network is improved.
The invention also provides a control method of the PSE device based on multi-mode energy and signal input, which is realized by the PSE device based on multi-mode energy and signal input, and the control method comprises the following steps:
the charging and discharging controller acquires current electric quantity information of the energy storage subunit at intervals of a first preset time and judges whether the current electric quantity information is lower than a first preset electric quantity threshold value or not;
if the current electric quantity information is lower than a first preset electric quantity threshold value, controlling a third-party energy conversion subunit to be started;
calculating the electric quantity change value of the energy storage subunit according to the electric quantity information of the energy storage subunit at the adjacent moment, and judging whether the electric quantity change value is smaller than zero;
and if the electric quantity change value is smaller than zero, controlling the commercial power complementary control subunit to be started so that the commercial power complementary control subunit inputs direct-current voltage to the energy storage subunit.
Further, the method further comprises:
the third-party signal detection unit detects whether the input interface of the third-party signal detection unit has an Ethernet input signal, if the Ethernet input signal exists, the input function of other signals is forbidden, so that the Ethernet direct-through mode is preferentially used, and the input signal is transmitted to the Ethernet signal output unit;
if the third-party signal detection unit detects that the interface of the third-party signal detection unit does not have the Ethernet input signal, detecting the input types of other signals, and transmitting the input types and the signals of the other signals to the Ethernet conversion unit so as to encode and recombine the input signals according to an external network protocol;
after the input signal is recombined, the signal rate control unit detects whether the rate of the acquired interface data signal is greater than a preset transmission rate;
if the interface data signal rate is greater than the preset transmission rate, the signal rate control unit performs data buffering processing on the input signal so as to output the input signal according to the preset transmission rate;
if the interface data signal rate is greater than the preset transmission rate, the signal rate control unit transmits according to the current interface data signal rate;
when the voltage conversion unit receives the input signal, the input signal is converted according to the standard of the Ethernet signal and transmitted to the Ethernet signal output unit.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a schematic diagram of a PSE device based on multi-modal energy and signal input according to a first embodiment of the present invention;
FIG. 2 is a flow chart of a control method for a PSE device based on multi-modal energy and signal inputs in a second embodiment of the present invention;
fig. 3 is a flowchart of a control method for a communication module according to a second embodiment of the present invention.
The following detailed description will further illustrate the invention in conjunction with the above-described figures.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Several embodiments of the invention are presented in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, a schematic structural diagram of a PSE device based on multi-modal energy and signal input according to a first embodiment of the present invention is shown, the system includes a multi-modal power supply module 10, a PSE module 30, and a communication module 20, wherein:
the multi-modal power supply module 10 is configured to supply power to the PSE module 30 and the communication module 20, the multi-modal power supply module 10 includes a first power supply unit 101 connected to a third-party energy source 60 and a second power supply unit 102 connected to a mains supply, in this embodiment, the third-party energy source 60 mainly refers to energy sources in other forms such as water energy, wind energy, and light energy, the first power supply unit 101 specifically includes a third-party energy conversion subunit 1011, a charge/discharge control subunit 1012 electrically connected to the third-party energy conversion subunit 1011, and an energy storage subunit 1013 electrically connected to the charge/discharge control subunit 1012, the energy storage subunit 1013 is electrically connected to the PSE module 30 and the communication module 20, so as to supply power to the PSE module 30 and the communication module 20 through the energy storage subunit 1013, the charge/discharge control subunit is electrically connected to the second power supply unit 102, wherein the third-party energy conversion subunit 1013 is configured to convert the third-party energy source into electric energy, the charge/discharge control subunit 1012 is configured to monitor the electric quantity of the energy storage subunit 1013, and further to charge the third-party energy source 60, and further to save the load of the mains supply power to the third party 60.
Further, the second power supply unit 102 includes an ac conversion subunit 1021, a complementary control subunit 1022 and a DC-DC boost subunit 1023, wherein an input end of the ac conversion subunit 1021 is connected to the commercial power 70, and is configured to convert the received ac power into DC power; the utility power complementary control subunit 1022 is further electrically connected to the ac conversion subunit 1021 and the charging and discharging control subunit 1012, respectively, and is configured to control the ac conversion subunit 1021 to be turned on when the third-party energy 60 generates insufficient power, so as to control the utility power 70 to charge the energy storage subunit 1013, that is, the PSE device in the scheme is configured to be powered by the third-party energy first, and is powered by the utility power together with the utility power only when the third-party energy is insufficient; the DC-DC voltage boost sub-unit 1023 is electrically connected to the complementary control sub-unit 1022 for boosting the commercial power voltage outputted by the ac conversion sub-unit 1021 to convert the voltage into a 48V DC voltage meeting the power supply standard of the PSE device.
By way of example and not limitation, the charge/discharge control subunit 1012 is a charge/discharge controller, the energy storage subunit 1013 is a battery, and the AC/DC conversion subunit 1021 is an AC to DC switching power supply.
Further, while multi-mode power supply is realized for the communication module 20 and the PSE module 30, the communication module 20 further supports multi-mode network communication, and the communication module specifically includes a third-party signal detection unit 201 and an ethernet conversion unit 202, where the third-party signal detection unit 201 is connected to the third-party signal input unit 90 and is configured to receive a third-party signal sent by the third-party signal input unit 90 and detect a signal type of the third-party signal, and the ethernet conversion unit 202 is electrically connected to the third-party signal detection unit 201 and is configured to invoke a corresponding interface standard according to the signal type of the third-party signal and convert the received third-party signal into an ethernet signal according to the interface standard corresponding to the third-party signal. It should be further noted that the third-party signal input unit is electrically connected to the third-party signal detection unit through other interface standards, and the third-party signal includes, but is not limited to PCIe, USB, optical fiber, and the like. The third-party signal detection unit 201 first detects the type of the modal input signal, and then the ethernet conversion unit 202 extracts the corresponding interface standard according to the type of the input signal, so as to convert the corresponding modal signal into an ethernet signal.
Further, the communication module 20 further includes a signal rate control unit 203 and a voltage conversion unit 204, where the signal rate control unit 203 is electrically connected to the ethernet conversion unit 202 and is configured to control a transmission rate at which third party signals under different interface standards are converted into ethernet signals; the voltage conversion unit 204 is electrically connected to the signal rate control unit 203, and is configured to convert a transmission voltage based on an interface standard into a first preset voltage, where the first preset voltage is a bias voltage corresponding to an ethernet signal during data transmission.
In order to implement the communication function, the communication module further includes an ethernet signal output unit 205, a first input terminal of which is electrically connected to the voltage conversion unit 204 to receive the ethernet signal converted by the third party signal, and a second input terminal of which is electrically connected to an ethernet input unit 80 to directly receive the ethernet signal sent by the ethernet signal input unit 80, so that the ethernet signal received from the ethernet signal input unit 80 and the ethernet signal received from the ethernet conversion unit 202 are transmitted to the PSE module 30 together. The input PCIe signals, USB signals, optical fibers and other signals are converted into Ethernet signals, so that the blank of realizing multi-mode signal communication based on PoE is filled up, control, synchronization and data communication are carried out by utilizing multi-mode signal transmission, the electromagnetic interference of the signals can be avoided or reduced, the defect of unstable communication performance of Ethernet cables is relieved or solved, and the robustness of a network is improved.
By way of example and not limitation, in this embodiment, the ethernet conversion unit 202 is a chip, and a filter circuit is further connected to the ethernet chip to filter out interference from other signals during the signal conversion process.
It should be further noted that the PSE module 30 further includes:
a power access unit 301, configured to receive a power supply signal from the energy storage subunit, so as to supply power to the PSE control unit 302 and the first POE unit 304, respectively.
PSE control unit 302, electrically connected to the energy storage subunit 1013 through a power access unit, and configured to provide power to an ethernet cable according to IEEE 802.3bt standard, detect a powered device (PD module) with a certain valid characteristic, determine a power requirement of the device according to its classification, and supply power;
a first PHY unit 303, configured to provide a physical standard interface for transmitting the original bit stream to a data link layer, where the physical layer is located at the bottom of the OSI layer, and a physical layer protocol defines connectors for electrical signals, line status, clock requirements, data encoding, and data transmission, and provides a physical standard interface connection for transmitting the original bit stream to the data link layer.
Further, the PSE device further includes a plurality of PD modules 40, the PSE module 30 further includes a first POE unit 304, the first POE unit 304 is connected with at least one PD module load through an RJ45 interface 50, specifically, the PD module 40 includes an MCU micro-processing unit 401, a driving unit 402 electrically connected with the MCU micro-processing unit 401, and an LED unit 403 electrically connected with the driving unit 402, the PD module further includes a second PHY unit 406 and a second POE unit 405, the second POE unit 405 and the first POE unit 304 are connected through the RJ45 interface 50, the RJ45 interface 50 receives signals transmitted by the above five types of cables from the PSE module 30, and its network port is connected to the PD module 40 to implement visible light communication, thereby controlling the PD module 40 to implement LED lighting, and simultaneously, a router and a control terminal can also be connected, and remote control and information interaction are performed through a terminal device based on the internet to implement an intelligent dimming function.
Specifically, the MCU micro-processing unit 401 is connected to the second POE unit, the MCU micro-processing unit 401 is configured to send a control instruction to the driving unit 402 according to the received ethernet signal, and the driving unit 402 drives the LED unit to turn on according to the control instruction. The ethernet signal input unit 80 is connected to the mobile terminal through a signal transmission module, and the ethernet signal input unit is configured to receive an illumination brightness signal sent by the mobile terminal, and perform remote control and information interaction through the terminal device based on the internet to realize an intelligent dimming function.
In summary, according to the PSE device based on multi-mode energy and signal input provided by the invention, the multi-mode energy input mode is adopted to supply power to replace the traditional mode of simply adopting commercial power to supply power, so that the load of the commercial power is greatly reduced, the power supply stability is improved, and the energy consumption is saved. In addition, control, synchronization and data communication are carried out by utilizing multi-mode signal transmission, so that electromagnetic interference of signals can be avoided or reduced, the defect of unstable communication performance of Ethernet cables is relieved or solved, and the robustness of a network is improved.
Fig. 2 is a flowchart of a control method of a PSE device based on multi-modal energy and signal input according to a second embodiment of the present invention, the control method includes steps S01 to S04, wherein:
step S01: the charging and discharging controller acquires current electric quantity information of the energy storage subunit every a first preset time, and judges whether the current electric quantity information is lower than a first preset electric quantity threshold value;
in order to realize the preferential third-party energy power supply, so as to reduce the load of the commercial power to the maximum extent and achieve the purpose of saving energy consumption, the charge-discharge controller can continuously monitor the current electric quantity information of the energy storage subunit in real time so as to judge whether the real-time electric quantity is lower than a first preset electric quantity threshold value, the purpose of setting the first preset electric quantity threshold value is to monitor whether the electric quantity value of the energy storage subunit is at a lower level, and because the first preset electric quantity threshold value is related to the specific use requirement, in the embodiment, the first preset electric quantity threshold value is not limited in detail.
Step S02: if the current electric quantity information is lower than a first preset electric quantity threshold value, controlling the third-party energy conversion subunit to be started;
it should be noted that, when monitoring that the electric quantity of the energy storage subunit is low, in order to ensure that the PSE device can continuously supply power, the charge-discharge controller controls the third-party energy conversion subunit to be started, that is, the energy storage subunit is charged.
Step S03: calculating the electric quantity change value of the energy storage subunit according to the electric quantity information of the energy storage subunit at the adjacent moment, and judging whether the electric quantity change value is smaller than zero;
in the process of preferentially charging the energy storage subunit by adopting the third-party energy, the charge-discharge controller can also monitor the electric quantity change value of the energy storage subunit so as to judge whether the electric quantity of the energy storage subunit is increased or not when the third-party energy is adopted for charging.
Step S04: and if the electric quantity change value is smaller than zero, controlling the commercial power complementary control subunit to be started so that the commercial power complementary control subunit inputs direct-current voltage to the energy storage subunit.
It can be understood that, if the monitored electric quantity variation value is less than zero, it indicates that the electric quantity of the energy storage subunit is still being reduced under the condition of charging by using the third-party energy source, and based on this, in order to maintain stable power supply of the PSE device, the charge-discharge controller controls the complementary controller subunit to be turned on at this time, so that the third-party energy source and the commercial power jointly charge the energy storage subunit.
It should be noted that, the control process starts monitoring when the lighting system is used, the electric quantity condition of the energy storage subunit is continuously monitored in real time by setting a first preset time, and then whether the electric quantity of the energy storage subunit is low is judged, the third-party energy is preferentially controlled to charge, meanwhile, the real-time change condition of the energy storage subunit is calculated according to the electric quantity information of the energy storage subunit obtained at adjacent time, if the electric quantity of the energy storage subunit is still reduced in the process of charging by adopting the third-party energy, at this time, the commercial power complementary control subunit needs to be controlled to be started, so as to perform complementary charging on the energy storage subunit, and the multi-mode power supply module is precisely controlled, so as to realize the function of preferentially using the third-party energy to supply power, only under the condition that the third-party energy is not charged enough, the commercial power is controlled to be matched with the commercial power, the load of the commercial power is greatly reduced, the energy consumption is saved, and the environmental protection is facilitated.
In addition, please refer to fig. 3, in order to implement the multi-modal communication, the method for controlling a communication module in this embodiment further includes:
step S101: the third-party signal detection unit detects whether an input interface of the third-party signal detection unit has an Ethernet input signal;
step S102: if the Ethernet input signal exists, the input function of other signals is forbidden, so that the Ethernet direct-through mode is preferentially used, and the input signal is transmitted to the Ethernet signal output unit;
step S103: if the third-party signal detection unit detects that the interface of the third-party signal detection unit does not have the Ethernet input signal, detecting the input types of other signals, and transmitting the input types and the signals of the other signals to the Ethernet conversion unit so as to encode and recombine the input signals according to an external network protocol;
step S104: after the input signal is recombined, the signal rate control unit detects whether the rate of the acquired interface data signal is greater than a preset transmission rate;
step S105: if the interface data signal rate is greater than the preset transmission rate, the signal rate control unit performs data buffering processing on the input signal so as to output the input signal according to the preset transmission rate;
step S106: if the interface data signal rate is greater than the preset transmission rate, the signal rate control unit transmits according to the current interface data signal rate;
step S107: when the voltage conversion unit receives the input signal, the input signal is converted according to the standard of the Ethernet signal and transmitted to the Ethernet signal output unit.
Through the transmission of realizing multimode signal, and then realize data communication to realize PSE module and visible light communication's combination, and then avoid or alleviate the electromagnetic interference of signal, alleviate or solve the unstable defect of ethernet cable communication performance, improve the robustness of network.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A PSE device based on multimodal energy and signal input, the device comprising a multimodal power supply module, a PSE module, and a communication module, wherein:
the multimode power supply module comprises a first power supply unit communicated with a third-party energy source and a second power supply unit communicated with a mains supply, wherein the first power supply unit comprises a third-party energy conversion subunit, a charge and discharge control subunit and an energy storage subunit, the charge and discharge control subunit is electrically connected with the third-party energy conversion subunit, the energy storage subunit is electrically connected with the charge and discharge control subunit, the energy storage subunit is respectively electrically connected with the PSE module and the communication module, and the charge and discharge control subunit is electrically connected with the second power supply unit;
the PSE module is used for supplying power to the communication module, the charging and discharging control subunit is used for monitoring the electric quantity of the energy storage subunit and controlling the charging of the energy storage subunit by third-party energy and/or commercial power.
2. The PSE device based on multi-modal energy and signal input of claim 1, wherein the second power supply unit comprises:
the input end of the alternating current conversion subunit is connected with commercial power and is used for converting the received alternating current into direct current;
the commercial power complementary control subunit is electrically connected with the alternating current conversion subunit and is used for controlling the alternating current conversion subunit to be started when the third-party energy is insufficient in power generation so as to control commercial power to charge the energy storage subunit;
and the DC-DC boosting subunit is electrically connected with the commercial power complementary control subunit and is used for boosting the commercial power voltage output by the alternating current conversion subunit.
3. The PSE device based on multi-modal energy and signal input of claim 2, wherein the communication module comprises:
the third-party signal detection unit is used for detecting the signal type of the third-party signal;
and the Ethernet conversion unit is electrically connected with the third-party signal detection unit and used for calling the corresponding interface standard according to the signal type of the third-party signal and converting the received third-party signal into the Ethernet signal according to the interface standard corresponding to the third-party signal.
4. The PSE device based on multi-modal energy and signal input of claim 3, wherein the communication module further comprises:
the signal rate control unit is electrically connected with the Ethernet conversion unit and is used for controlling the transmission rate of converting third-party signals under different interface standards into Ethernet signals;
and the voltage conversion unit is electrically connected with the signal rate control unit and used for converting the transmission voltage based on the interface standard into a first preset voltage, wherein the first preset voltage is a corresponding bias voltage when the Ethernet signal is subjected to data transmission.
5. The PSE device based on multi-modal energy and signal input of claim 4, wherein the communication module further comprises:
the first input end of the Ethernet signal output unit is electrically connected with the voltage conversion unit, and the second input end of the Ethernet signal output unit is electrically connected with an Ethernet signal input unit and used for transmitting the Ethernet signals received from the Ethernet signal input unit and the Ethernet signals received from the Ethernet conversion unit to the PSE module;
the Ethernet signal input unit is connected with the mobile terminal through a signal transmission module and is used for receiving an illumination brightness signal sent by the mobile terminal.
6. The PSE device based on multi-modal energy and signal input of claim 5, wherein the PSE module comprises:
the PSE control unit is electrically connected with the energy storage subunit through a power access unit;
a first PHY unit to provide a physical standard interface for a data link layer to transport an original bitstream.
7. The PSE device based on multimodal energy and signal input of claim 6, further comprising a plurality of PD modules, wherein the PSE module further comprises a first POE unit, and wherein the first POE unit is connected with at least one PD module load through an RJ45 interface.
8. The PSE device as recited in claim 7, wherein the PD module comprises an MCU (microprogrammed control Unit), a driving unit electrically connected with the MCU and an LED (light emitting diode) unit electrically connected with the driving unit, the MCU is connected with the first POE unit and is used for sending a control instruction to the driving unit according to a received Ethernet signal, and the driving unit drives the LED unit to be turned on according to the control instruction.
9. A method for controlling a PSE device based on multimodal energy and signal input, the method being implemented by the PSE device based on multimodal energy and signal input of any one of claims 1 to 8, the method comprising:
the charging and discharging controller acquires current electric quantity information of the energy storage subunit every other first preset time and judges whether the current electric quantity information is lower than a first preset electric quantity threshold value or not;
if the current electric quantity information is lower than a first preset electric quantity threshold value, controlling a third-party energy conversion subunit to be started;
calculating the electric quantity change value of the energy storage subunit according to the electric quantity information of the energy storage subunit at the adjacent moment, and judging whether the electric quantity change value is smaller than zero;
and if the electric quantity change value is smaller than zero, controlling the commercial power complementary control subunit to be started so that the commercial power complementary control subunit inputs direct-current voltage to the energy storage subunit.
10. The method of controlling a PSE device based on multi-modal energy and signal inputs of claim 9, wherein the method further comprises:
the third-party signal detection unit detects whether the input interface of the third-party signal detection unit has an Ethernet input signal, if the Ethernet input signal exists, the input function of other signals is forbidden, so that the Ethernet direct-through mode is preferentially used, and the input signal is transmitted to the Ethernet signal output unit;
if the third-party signal detection unit detects that the interface of the third-party signal detection unit does not have the Ethernet input signal, detecting the input types of other signals, and transmitting the input types and the signals of the other signals to the Ethernet conversion unit so as to encode and recombine the input signals according to an external network protocol;
after the input signal is recombined, the signal rate control unit detects whether the rate of the acquired interface data signal is greater than a preset transmission rate;
if the interface data signal rate is greater than the preset transmission rate, the signal rate control unit performs data buffering processing on the input signal so as to output the input signal according to the preset transmission rate;
if the interface data signal rate is greater than the preset transmission rate, the signal rate control unit transmits according to the current interface data signal rate;
when the voltage conversion unit receives the input signal, the input signal is converted according to the standard of the Ethernet signal and transmitted to the Ethernet signal output unit.
CN202210900502.4A 2022-07-28 2022-07-28 PSE device based on multi-mode energy and signal input and control method thereof Pending CN115441532A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115987392A (en) * 2023-02-16 2023-04-18 南昌大学 POE-based high-speed visible light communication system and method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115987392A (en) * 2023-02-16 2023-04-18 南昌大学 POE-based high-speed visible light communication system and method
CN115987392B (en) * 2023-02-16 2023-06-09 南昌大学 POE-based high-speed visible light communication system and method

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