CN116566754A - POE power supply control method, system and readable storage medium - Google Patents
POE power supply control method, system and readable storage medium Download PDFInfo
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- CN116566754A CN116566754A CN202310520596.7A CN202310520596A CN116566754A CN 116566754 A CN116566754 A CN 116566754A CN 202310520596 A CN202310520596 A CN 202310520596A CN 116566754 A CN116566754 A CN 116566754A
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- 230000004044 response Effects 0.000 claims description 8
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- 238000012795 verification Methods 0.000 claims description 6
- 238000012358 sourcing Methods 0.000 claims 4
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Classifications
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- 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
Abstract
The invention relates to the technical field of power supply control, in particular to a POE power supply control method, a POE power supply control system and a readable storage medium, wherein the method is based on power supply equipment, the power supply equipment comprises a POE power supply module, and the method comprises the following steps: responding to a communication connection request sent by the power receiving equipment, and establishing communication connection with the power receiving equipment; responding to a power supply request sent by power receiving equipment, and sending current to the power receiving equipment through a POE power supply module so as to match the power supply requirement of the power receiving equipment; providing power to the powered device after determining that the power supply demand of the powered device is matched; the invention can improve the autonomy, flexibility and stability of power supply.
Description
Technical Field
The invention relates to the technical field of power supply control, in particular to a POE power supply control method, a POE power supply control system and a readable storage medium.
Background
In an ethernet network, data and power are transmitted separately. To power a powered device, additional wires and receptacles are typically required, which increases cost and complexity. In order to solve this problem, POE technology has been developed. The POE technology can combine and transmit data and power in the same Ethernet cable, so that the installation and maintenance of powered equipment are simplified, and the number of wires and sockets is reduced.
However, the POE power supply technology in the related art also has the problem of lacking in power supply flexibility and reliability, and the POE power supply module has weak power supply autonomy to the device.
Disclosure of Invention
The invention aims to provide a POE power supply control method, a POE power supply control system and a readable storage medium, which can improve power supply autonomy, flexibility and stability.
In order to achieve the above object, the present invention provides the following technical solutions:
in a first aspect, an embodiment of the present application provides a POE power supply control method, where the method is applied to a power supply device, the power supply device includes a POE power supply module, and the method includes the following steps:
responding to a communication connection request sent by the power receiving equipment, and establishing communication connection with the power receiving equipment;
responding to a power supply request sent by power receiving equipment, and sending current to the power receiving equipment through a POE power supply module so as to match the power supply requirement of the power receiving equipment;
after determining that the power supply demand of the powered device is matched, power is provided to the powered device.
Further, the establishing a communication connection with the powered device in response to the communication connection request sent by the powered device includes:
responding to a communication connection request sent by a power receiving device, sending a first digital signature containing power supply equipment identity information to the power receiving device, and receiving a second digital signature containing the power receiving equipment identity information sent by the power receiving device;
and after the second digital signature passes the verification, and a message fed back by the powered device and passing the verification of the first digital signature is received, establishing communication connection with the powered device.
Further, the responding to the power supply request sent by the power receiving device, sending, by the POE power supply module, a current to the power receiving device to match the power supply requirement of the power receiving device, including:
s210, acquiring power receiving information of power receiving equipment, wherein the power receiving information of the power receiving equipment comprises a voltage range, a current range and a power range, the current range is I_min to I_max, the voltage range is V_min to V_max, and the power range is I_min to I_max;
s220, initializing a current value I of the power supply equipment to be I_max, and initializing a voltage value V to be V_max;
s230, sending current to the powered device through the POE power supply module according to a current value I and a voltage value V;
s240, after the set interval time, reading a voltage heuristic value V returned by the powered device, and judging whether the voltage heuristic value V is greater than or equal to V_min; if yes, executing S250; otherwise, executing S270;
s250, determining whether a power supply chip receives a trigger signal which is sent by a probe module and used for controlling a switch to cut off power supply; if yes, executing S260; if not, executing S280; the switch is arranged between the power supply equipment and the POE power supply module, a detection end of the switch is connected with a probe module, an output end of the probe module is connected with a detection pin of a control chip, and a control pin of the control chip is connected with a control end of the switch;
s260, controlling the switch to be turned off, and determining whether the voltage value V is reduced to V_min after the voltage value V is reduced by 1 voltage difference; if yes, executing S270; otherwise, S230 is performed;
s270, after the current value I is decremented by 1 current difference, determining whether the current value I is reduced to I_min; if yes, executing S280; otherwise, S230 is performed;
s280, determining that the power supply requirement of the powered device is matched.
Further, the determining whether the power supply chip receives the trigger signal that the probe module sends to control the switch to turn off the power supply includes:
if the power supply chip receives a trigger signal which is sent by the probe module and used for controlling the switch to cut off power supply, reporting monitoring information of the received trigger signal to the power supply equipment; the monitoring information is reported after the power supply chip receives a trigger signal which is sent by the probe module and used for controlling the switch to cut off power supply, and the trigger signal is sent to the power supply chip when the power absorbed by the probe module continuously exceeds a power threshold value to cause the probe module to overheat.
Further, the probe module comprises an internal probe module and an external probe module, the switch, the internal probe module and the external probe module are sequentially connected, and the method further comprises:
if the power supply chip receives a trigger signal for switching off the power supply of the control switch sent by any one of the built-in probe module and the external probe module, the control switch is switched off.
Further, after determining that the power supply requirement of the power receiving apparatus is matched, the providing power to the power receiving apparatus includes:
and when the power supply requirement of the power receiving equipment is determined to be matched, setting the handshake state of the power supply chip and the power receiving equipment to be completed, and triggering the power supply chip to set a switch to be in a conducting state so as to supply power to the power receiving equipment.
Further, the method further comprises:
in response to an operation request for controlling a powered device at a management interface, analyzing a power control parameter corresponding to the operation request, and providing power to the corresponding powered device with the power control parameter; the power control parameters corresponding to the operation request comprise at least one of switch control, voltage control, current control and power control.
In a second aspect, an embodiment of the present invention provides a POE power supply control system, where the system includes a power supply device, and the power supply device includes a POE power supply module and:
at least one processor;
at least one memory for storing at least one program;
when the at least one program is executed by the at least one processor, the at least one processor is caused to implement a POE power supply control method as recited in any one of the first aspect.
In a third aspect, an embodiment of the present invention further provides a computer readable storage medium storing computer executable instructions for performing a POE power supply control method as recited in any one of the first aspect.
The beneficial effects of the invention are as follows: the invention discloses a POE power supply control method, a POE power supply control system and a readable storage medium, wherein power supply requirements of power receiving equipment are autonomously matched through power supply equipment; by adopting the plug and play modularization mode of the POE power supply module, the power supply efficiency and the flexibility can be improved. POE power supply module based on POE power supply technique also can further improve transmission efficiency and power supply stability, has very high practical application value.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic flow chart of a POE power supply control method in an embodiment of the present invention;
FIG. 2 is a schematic diagram of a power supply in an embodiment of the invention;
FIG. 3 is another power schematic diagram in an embodiment of the invention;
FIG. 4 is a schematic diagram of a management interface in an embodiment of the invention;
fig. 5 is a schematic structural diagram of a POE power supply control system according to an embodiment of the present invention.
Detailed Description
The conception, specific structure, and technical effects produced by the present invention will be clearly and completely described below with reference to the embodiments and the drawings to fully understand the objects, aspects, and effects of the present invention. It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
The invention provides a Power Over Ethernet (POE) technology for transmitting data and power based on an Ethernet cable, which is based on a pluggable installation mode and adopts a switch to control power supply, so that power receiving equipment can supply power as required. According to the POE technology, through a plug-in movable installation mode and through software switch control, power transmission is carried out on power receiving equipment needing POE power supply through an Ethernet cable, the flexibility of installation and power supply of a POE power supply module can be managed through the mode, an autonomous, efficient and energy-saving power supply mode is provided, and the POE power supply technology can be applied to power supply equipment.
Referring to fig. 1, fig. 1 is a schematic flow chart of a POE power supply control method provided by the present invention, which is applied to a power supply device, wherein the power supply device includes a POE power supply module, and the method includes the following steps:
s100, responding to a communication connection request sent by a power receiving device, and establishing communication connection with the power receiving device;
s200, responding to a power supply request sent by power receiving equipment, and sending current to the power receiving equipment through a POE power supply module so as to match the power supply requirement of the power receiving equipment;
specifically, the power supply equipment transmits currents with different voltage values to the power receiving equipment through the POE power supply module to conduct probing, if the voltage values meet the standard, the power switch is electrified to the power receiving equipment, and if the voltage values do not meet the standard, the power switch is not electrified, so that the power supply requirement of the power receiving equipment is determined based on the power supply request.
And S300, after the power supply requirement of the power receiving equipment is determined to be matched, providing power to the power receiving equipment.
According to the power supply control method provided by the invention, based on the POE technology of data and power transmitted by the Ethernet cable, when power receiving equipment needs to be powered, the POE power supply module can be plugged in time, and the power receiving equipment is powered by the cable corresponding to the network port of the POE power supply module. Autonomously matching a power supply requirement of the powered device by a power supply device; by adopting the plug and play modularization mode of the POE power supply module, the power supply efficiency and the flexibility can be improved. The technical scheme of the invention has the advantages of high efficiency, energy saving and easy management, can be widely applied to various power receiving equipment needing power supply, and in addition, the POE power supply module based on the POE power supply technology can further improve the transmission efficiency and the power supply stability, and has high practical application value.
In one embodiment, in S100, the establishing a communication connection with the powered device in response to the communication connection request sent by the powered device includes:
s110, responding to a communication connection request sent by a power receiving device, sending a first digital signature containing power supply equipment identity information to the power receiving device, and receiving a second digital signature containing the power receiving equipment identity information sent by the power receiving device;
s120, after the second digital signature passes verification, and a message fed back by the power receiving device and passing the first digital signature verification is received, communication connection with the power receiving device is established.
Specifically, when POE power supply is prepared, the powered device needs to send a digital signature containing device identity information to the power supply device; the power supply device performs authentication based on this digital signature and then provides power supply to the device. At the same time, the power supply device also needs to send a digital signature to verify its power supply identity. The double signature detection mechanism can effectively prevent unauthorized equipment from carrying out power transmission through an Ethernet cable, thereby protecting the security of a network system.
Referring to fig. 2 and 3, in an embodiment, in S200, in response to a power supply request sent by a powered device, sending, by a POE power supply module, a current to the powered device to match a power supply requirement of the powered device, including:
s210, acquiring power receiving information of power receiving equipment, wherein the power receiving information of the power receiving equipment comprises a voltage range, a current range and a power range, the current range is I_min to I_max, the voltage range is V_min to V_max, and the power range is I_min to I_max;
s220, initializing a current value I of the power supply equipment to be I_max, and initializing a voltage value V to be V_max;
s230, sending current to the powered device through the POE power supply module according to a current value I and a voltage value V;
s240, after the set interval time, reading a voltage heuristic value V returned by the powered device, and judging whether the voltage heuristic value V is greater than or equal to V_min; if yes, executing S250; otherwise, executing S270;
s250, determining whether a power supply chip receives a trigger signal which is sent by a probe module and used for controlling a switch to cut off power supply; if yes, executing S260; if not, executing S280; the switch is arranged between the power supply equipment and the POE power supply module, a detection end of the switch is connected with a probe module, an output end of the probe module is connected with a detection pin of a control chip, and a control pin of the control chip is connected with a control end of the switch;
s260, controlling the switch to be turned off, and determining whether the voltage value V is reduced to V_min after the voltage value V is reduced by 1 voltage difference; if yes, executing S270; otherwise, S230 is performed;
s270, after the current value I is decremented by 1 current difference, determining whether the current value I is reduced to I_min; if yes, executing S280; otherwise, S230 is performed;
s280, determining that the power supply requirement of the powered device is matched.
In the POE power supply control method, when power supply is needed, power supply equipment supplies power to power receiving equipment through the POE power supply module, the power supply equipment conducts probing through sending currents with different voltages, the power supply chip and the probe module conduct control, when the power receiving equipment needs to supply power, the power supply equipment conducts probing through sending currents with different voltages, if the voltage meets the standard, the switch is turned on, and if the voltage does not meet the standard, the switch is not turned on. On the premise of guaranteeing power supply safety, matching of power supply requirements of power supply equipment and power receiving equipment is realized, and an optimal power supply mode is determined.
In one embodiment, in S250, the determining whether the power supply chip receives a trigger signal sent by the probe module to control the switch to turn off the power supply includes:
if the power supply chip receives a trigger signal which is sent by the probe module and used for controlling the switch to cut off power supply, reporting monitoring information of the received trigger signal to the power supply equipment; the monitoring information is reported after the power supply chip receives a trigger signal which is sent by the probe module and used for controlling the switch to cut off power supply, and the trigger signal is sent to the power supply chip when the power absorbed by the probe module continuously exceeds a power threshold value to cause the probe module to overheat.
When power supply equipment pushes power to a POE power supply module, the power supply equipment can successfully negotiate handshake with the POE power supply module through a power supply chip (an IC chip with the model of IC808 AR) in the power supply process, and can supply power through a power supply port corresponding to the POE power supply module. The heat of the probe module is positively related to the power absorbed by the probe module, and when the power absorbed by the probe module exceeds a power threshold value, the probe module is overheated, and a power supply chip is triggered to control a switch to turn off power supply; in an embodiment, the power threshold ranges from i_min to i_max.
In an embodiment, the probe module includes an internal probe module and an external probe module, and the switch, the internal probe module and the external probe module are sequentially connected, and the method further includes:
if the power supply chip receives a trigger signal for switching off the power supply of the control switch sent by any one of the built-in probe module and the external probe module, the control switch is switched off.
When current passes through the built-in probe module, the built-in probe module can generate heat transformation along with the current passing power, and when the built-in probe module is overheated due to the overlarge power, the power supply chip can be informed to close power supply. When the built-in probe module fails, the built-in probe module can be used for detecting, and when the power is too high, the built-in probe module is overheated to generate a fusing reaction to trigger the power supply chip to disconnect power supply.
In an embodiment, in S300, after determining that the power supply requirement of the power receiving apparatus is matched, the providing power to the power receiving apparatus includes:
and when the power supply requirement of the power receiving equipment is determined to be matched, setting the handshake state of the power supply chip and the power receiving equipment to be completed, and triggering the power supply chip to set a switch to be in a conducting state so as to supply power to the power receiving equipment.
Referring to fig. 4, in an embodiment, after S300, the method further includes:
in response to an operation request for controlling a powered device at a management interface, analyzing a power control parameter corresponding to the operation request, and providing power to the corresponding powered device with the power control parameter; the power control parameters corresponding to the operation request comprise at least one of switch control, voltage control, current control and power control.
Specifically, the management interface is used for clicking the start button, the power supply mode of the corresponding powered device is managed through the virtual switch of the management interface, the power is controlled, and the current specific power supply situation can be seen through the page. When the powered device does not need power supplied by the POE power supply module temporarily, the close button is clicked.
The POE technology provided by the invention also comprises a power supply management mechanism so as to improve the power supply efficiency and stability. The power supply management mechanism can monitor the power supply requirement of the powered device, dynamically adjust the power supply voltage and current to meet the requirements of different devices, and avoid overload and underload of power supply. The power supply management mechanism can also optimize energy utilization and reduce energy waste, thereby improving the energy efficiency and environmental friendliness of the system.
In addition, referring to fig. 5, an embodiment of the present invention further provides a POE power supply control system, which includes a power supply device including a POE power supply module and:
at least one processor;
at least one memory for storing at least one program;
the at least one program, when executed by the at least one processor, causes the at least one processor to implement the method described above.
It can be seen that the content in the above method embodiment is applicable to the system embodiment, and the functions specifically implemented by the system embodiment are the same as those of the method embodiment, and the beneficial effects achieved by the method embodiment are the same as those achieved by the method embodiment.
Furthermore, an embodiment of the present invention provides a computer readable storage medium storing computer executable instructions, where the computer executable instructions are executed by a processor or a controller, for example, by a processor in the above-mentioned electronic device embodiment, and cause the processor to execute a POE power supply control method in the above-mentioned embodiment.
Similarly, the content in the above method embodiment is applicable to the present storage medium embodiment, and the specific functions of the present storage medium embodiment are the same as those of the above method embodiment, and the achieved beneficial effects are the same as those of the above method embodiment.
Those of ordinary skill in the art will appreciate that all or some of the steps, systems, and methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as known to those skilled in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer. Furthermore, as is well known to those of ordinary skill in the art, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media.
While the preferred embodiments of the present disclosure have been illustrated and described, the present disclosure is not limited to the above-described embodiments, and various equivalent modifications and substitutions can be made by those skilled in the art without departing from the spirit of the present disclosure, and these equivalent modifications and substitutions are intended to be included in the scope of the present disclosure as defined in the appended claims.
Claims (9)
1. A POE power supply control method, characterized in that the method is applied to a power supply apparatus including a POE power supply module, the method comprising the steps of:
responding to a communication connection request sent by the power receiving equipment, and establishing communication connection with the power receiving equipment;
responding to a power supply request sent by power receiving equipment, and sending current to the power receiving equipment through a POE power supply module so as to match the power supply requirement of the power receiving equipment;
after determining that the power supply demand of the powered device is matched, power is provided to the powered device.
2. The POE power supply control method according to claim 1, wherein said establishing a communication connection with the power receiving apparatus in response to the communication connection request transmitted by the power receiving apparatus comprises:
responding to a communication connection request sent by a power receiving device, sending a first digital signature containing power supply equipment identity information to the power receiving device, and receiving a second digital signature containing the power receiving equipment identity information sent by the power receiving device;
and after the second digital signature passes the verification, and a message fed back by the powered device and passing the verification of the first digital signature is received, establishing communication connection with the powered device.
3. The POE power sourcing control method as set forth in claim 1, wherein said sending, by the POE power sourcing module, current to the powered device in response to the power sourcing request sent by the powered device to match the power sourcing requirement of the powered device, comprises:
s210, acquiring power receiving information of power receiving equipment, wherein the power receiving information of the power receiving equipment comprises a voltage range, a current range and a power range, the current range is I_min to I_max, the voltage range is V_min to V_max, and the power range is I_min to I_max;
s220, initializing a current value I of the power supply equipment to be I_max, and initializing a voltage value V to be V_max;
s230, sending current to the powered device through the POE power supply module according to a current value I and a voltage value V;
s240, after the set interval time, reading a voltage heuristic value V returned by the powered device, and judging whether the voltage heuristic value V is greater than or equal to V_min; if yes, executing S250; otherwise, executing S270;
s250, determining whether a power supply chip receives a trigger signal which is sent by a probe module and used for controlling a switch to cut off power supply; if yes, executing S260; if not, executing S280; the switch is arranged between the power supply equipment and the POE power supply module, a detection end of the switch is connected with a probe module, an output end of the probe module is connected with a detection pin of a control chip, and a control pin of the control chip is connected with a control end of the switch;
s260, controlling the switch to be turned off, and determining whether the voltage value V is reduced to V_min after the voltage value V is reduced by 1 voltage difference; if yes, executing S270; otherwise, S230 is performed;
s270, after the current value I is decremented by 1 current difference, determining whether the current value I is reduced to I_min; if yes, executing S280; otherwise, S230 is performed;
s280, determining that the power supply requirement of the powered device is matched.
4. A POE power supply control method according to claim 3, wherein said determining whether the power supply chip has received a trigger signal from the probe module to turn off the power supply by the control switch comprises:
if the power supply chip receives a trigger signal which is sent by the probe module and used for controlling the switch to cut off power supply, reporting monitoring information of the received trigger signal to the power supply equipment; the monitoring information is reported after the power supply chip receives a trigger signal which is sent by the probe module and used for controlling the switch to cut off power supply, and the trigger signal is sent to the power supply chip when the power absorbed by the probe module continuously exceeds a power threshold value to cause the probe module to overheat.
5. The POE power supply control method of claim 4, wherein said probe modules comprise an internal probe module and an external probe module, said switch, internal probe module and external probe module being connected in sequence, said method further comprising:
if the power supply chip receives a trigger signal for switching off the power supply of the control switch sent by any one of the built-in probe module and the external probe module, the control switch is switched off.
6. The POE power supply control method as recited in claim 3 wherein said supplying power to the powered device after determining that the power supply demand of the powered device is matched comprises:
and when the power supply requirement of the power receiving equipment is determined to be matched, setting the handshake state of the power supply chip and the power receiving equipment to be completed, and triggering the power supply chip to set a switch to be in a conducting state so as to supply power to the power receiving equipment.
7. The POE power supply control method as recited in claim 1 wherein said method further comprises:
in response to an operation request for controlling a powered device at a management interface, analyzing a power control parameter corresponding to the operation request, and providing power to the corresponding powered device with the power control parameter; the power control parameters corresponding to the operation request comprise at least one of switch control, voltage control, current control and power control.
8. A POE power supply control system, the system comprising a power supply device comprising a POE power supply module and:
at least one processor;
at least one memory for storing at least one program;
when the at least one program is executed by the at least one processor, the at least one processor is caused to implement a POE power supply control method as recited in any one of claims 1 to 7.
9. A computer-readable storage medium storing computer-executable instructions for performing a POE power supply control method as recited in any one of claims 1 to 7.
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| CN202310520596.7A CN116566754A (en) | 2023-05-09 | 2023-05-09 | POE power supply control method, system and readable storage medium |
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| CN202310520596.7A CN116566754A (en) | 2023-05-09 | 2023-05-09 | POE power supply control method, system and readable storage medium |
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