A POE power supply control method, system and readable storage medium

Abstract

The present invention relates to the field of power supply control technology, and particularly relates to a POE power supply control method, system and readable storage medium. The method is based on a power supply device, and the power supply device includes a POE power supply module. The method includes: responding to a communication connection request sent by a power receiving device, and establishing a communication connection with the power receiving device; responding to a power supply request sent by the power receiving device, and sending current to the power receiving device through the POE power supply module to match the power supply demand of the power receiving device; after determining that the power supply demand of the power receiving device is matched, providing power to the power receiving device. The present invention can improve the power supply autonomy, flexibility and stability.

Description

Technical Field

[0001] The present invention relates to the technical field of power supply control, and particularly relates to a POE power supply control method, system and readable storage medium. Background Art

[0002] In an Ethernet network, data and power are transmitted separately. To provide power to a powered device, additional wires and sockets are usually required, which increases costs and complexity. To solve this problem, POE technology emerged. POE technology can combine data and power transmission in the same Ethernet cable, thus simplifying the installation and maintenance of powered devices and reducing the number of wires and sockets.

[0003] However, the POE power supply technology in the related art still has problems of lack of power supply flexibility and reliability, and the power supply autonomy of the POE power supply module for devices is not strong. Summary of the Invention

[0004] The purpose of the present invention is to provide a POE power supply control method, system and readable storage medium, which can improve power supply autonomy, flexibility and stability.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] In a first aspect, an embodiment of the present application provides a POE power supply control method, which is applied to a power supply device. The power supply device includes a POE power supply module. The method includes the following steps:

[0007] Respond to a communication connection request sent by a powered device, and establish a communication connection with the powered device;

[0008] Respond to a power supply request sent by the powered device, and send current to the powered device through the POE power supply module to match the power supply demand of the powered device;

[0009] After determining that the power supply demand of the powered device is matched, provide power to the powered device.

[0010] Further, the step of responding to a communication connection request sent by the powered device and establishing a communication connection with the powered device includes:

[0011] Respond to a communication connection request sent by the powered device, send a first digital signature containing the identity information of the power supply device to the powered device, and accept a second digital signature containing the identity information of the powered device sent by the powered device;

[0012] After the verification of the second digital signature is passed and a message indicating that the verification of the first digital signature is passed is received from the powered device, establish a communication connection with the powered device.

[0013] Further, for the power supply request sent by the responsive power receiving device, the POE power supply module sends current to the power receiving device to match the power supply demand of the power receiving device, including:

[0014] S210, obtain the power receiving information of the power receiving device. The power receiving information of the power receiving device includes a voltage range, a current range, and a power range. The current range is from I_min to I_max, the voltage range is from V_min to V_max, and the power range is from I_min*V_min to I_max*V_max;

[0015] S220, initialize the current value I of the power supply device to I_max and initialize the voltage value V to V_max;

[0016] S230, send current to the power receiving device through the POE power supply module with the current value I and the voltage value V;

[0017] S240, after a set interval duration, read the voltage test value v returned by the power receiving device, and determine whether the voltage test value v is greater than or equal to V_min; if so, execute S250; otherwise, execute S270;

[0018] S250, determine whether the power supply chip receives a trigger signal sent by the probe module to control the switch to disconnect the power supply; if so, execute S260; if not, execute S280; wherein, the switch is arranged between the power supply device and the POE power supply module, the detection end of the switch is connected with the probe module, the output end of the probe module is connected with the detection pin of the control chip, and the control pin of the control chip is connected with the control end of the switch;

[0019] S260, control the switch to disconnect, and after decreasing the voltage value V by one voltage difference, determine whether the voltage value V has decreased to V_min; if so, execute S270; otherwise, execute S230;

[0020] S270, after decreasing the current value I by one current difference, determine whether the current value I has decreased to I_min; if so, execute S280; otherwise, execute S230;

[0021] S280, determine to match the power supply demand of the power receiving device.

[0022] Further, the determining whether the power supply chip receives a trigger signal sent by the probe module to control the switch to disconnect the power supply includes:

[0023] If the power supply chip receives the trigger signal sent by the probe module to disconnect the power supply of the control switch, it reports the monitoring information of receiving the trigger signal to the power supply device; wherein, the monitoring information is reported after the power supply chip receives the trigger signal sent by the probe module to disconnect the power supply of the control switch, and the trigger signal is sent to the power supply chip when the power absorbed by the probe module continuously exceeds the power threshold, resulting in overheating of the probe module.

[0024] Further, the probe module includes a built-in probe module and an external probe module, and the switch, the built-in probe module, and the external probe module are connected in sequence. The method further includes:

[0025] If the power supply chip receives the trigger signal sent by any one of the built-in probe module and the external probe module to disconnect the power supply of the control switch, it controls the switch to disconnect.

[0026] Further, the step of providing power to the power receiving device after determining that the power supply requirement of the power receiving device is met includes:

[0027] After determining that the power supply requirement of the power receiving device is met, set the handshake state of the power supply chip and the power receiving device to completed, and trigger the power supply chip to set the switch to the conducting state to provide power to the power receiving device.

[0028] Further, the method further includes:

[0029] In response to an operation request to control the power receiving device on the management interface, parse the power control parameters corresponding to the operation request, and provide power to the corresponding power receiving device with the power control parameters; wherein, the power control parameters corresponding to the operation request include at least one of switch control, voltage control, current control, and power control.

[0030] In a second aspect, an embodiment of the present invention provides a POE power supply control system, which includes a power supply device. The power supply device includes a POE power supply module and:

[0031] At least one processor;

[0032] At least one memory for storing at least one program;

[0033] When the at least one program is executed by the at least one processor, the at least one processor implements a POE power supply control method according to any one of the first aspect.

[0034] In a third aspect, an embodiment of the present invention further provides a computer-readable storage medium, storing computer-executable instructions for executing a POE power supply control method according to any one of the first aspect.

[0035] The beneficial effects of the present invention are as follows: The present invention discloses a POE power supply control method, system and readable storage medium, which can autonomously match the power supply requirements of the power receiving device by the power supply device; by adopting the plug-and-play modular POE power supply module, the power supply efficiency and flexibility can be improved. The POE power supply module based on the POE power supply technology can further improve the transmission efficiency and power supply stability, and has high practical application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0037] Figure 1 is a schematic flowchart of a POE power supply control method in an embodiment of the present invention;

[0038] Figure 2 is a power supply schematic diagram in an embodiment of the present invention;

[0039] Figure 3 is another power supply schematic diagram in an embodiment of the present invention;

[0040] Figure 4 is a schematic diagram of a management interface in an embodiment of the present invention;

[0041] Figure 5 is a schematic structural diagram of a POE power supply control system in an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0042] The following will clearly and completely describe the concept, specific structure and technical effects generated by the present invention in combination with the embodiments and the drawings, so as to fully understand the purpose, solution and effects of the present invention. It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0043] The present invention provides a Power over Ethernet (POE) technology for transmitting data and power based on an Ethernet cable. Based on a plug-and-play installation mode and using switch control for power supply, it ensures that the power receiving device can be powered as needed. This POE technology can perform power transmission to the power receiving device that requires POE power supply through an Ethernet cable by using a plug-and-play active installation method and software switch control. Using this method can manage the installation and power supply flexibility of the POE power supply module, providing an autonomous, efficient and energy-saving power supply method, which can be applied to power supply devices.

[0044] Refer to Figure 1 , Figure 1 which is a schematic flowchart of a POE power supply control method provided by the present invention, applied to a power supply device. The power supply device includes a POE power supply module, and the method includes the following steps:

[0045] S100, respond to the communication connection request sent by the power receiving device, and establish a communication connection with the power receiving device;

[0046] S200, respond to the power supply request sent by the power receiving device, and send current to the power receiving device through the POE power supply module to match the power supply demand of the power receiving device;

[0047] Specifically, the power supply device sends currents with different voltage values to the power receiving device through the POE power supply module for testing. If the voltage value meets the standard, the switch is turned on to supply power to the power receiving device. If it does not meet the standard, the switch is not turned on, so as to determine the power supply demand of the power receiving device based on the power supply request.

[0048] S300, after determining to match the power supply demand of the power receiving device, provide power to the power receiving device.

[0049] The power supply control method provided by the present invention is based on the POE technology that transmits data and power through an Ethernet cable. When the power receiving device needs power supply, it can insert the POE power supply module in time and select the cable corresponding to the network port of the POE power supply module to supply power to the power receiving device. The power supply device autonomously matches the power supply demand of the power receiving device; by adopting the plug-and-play modular method of the POE power supply module, the power supply efficiency and flexibility can be improved. The technical solution of the present invention has the advantages of high efficiency, energy saving, and easy management, and can be widely applied to various power receiving devices that require power supply. In addition, the POE power supply module based on the POE power supply technology can further improve the transmission efficiency and power supply stability, and has high practical application value.

[0050] In an embodiment, in S100, the step of responding to the communication connection request sent by the power receiving device and establishing a communication connection with the power receiving device includes:

[0051] S110, respond to the communication connection request sent by the power receiving device, send a first digital signature containing the identity information of the power supply device to the power receiving device, and receive a second digital signature containing the identity information of the power receiving device sent by the power receiving device;

[0052] S120, after the verification of the second digital signature is passed and the message indicating that the verification of the first digital signature is passed feedback by the power receiving device is received, establish a communication connection with the power receiving device.

[0053] Specifically, when preparing for POE power supply, the powered device needs to send a digital signature containing device identity information to the power supply device; the power supply device performs identity verification 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. This dual-signature detection mechanism can effectively prevent unauthorized devices from transmitting power through Ethernet cables, thereby protecting the security of the network system.

[0054] Referring to Figure 2 and Figure 3 In one embodiment, in S200, when responding to the power supply request sent by the powered device and sending current to the powered device through the POE power supply module to match the power supply demand of the powered device, it includes:

[0055] S210, obtaining the power receiving information of the powered device, where the power receiving information of the powered device includes a voltage range, a current range, and a power range. The current range is from I_min to I_max, the voltage range is from V_min to V_max, and the power range is from I_min * V_min to I_max * V_max;

[0056] S220, initializing the current value I of the power supply device to I_max and initializing the voltage value V to V_max;

[0057] S230, sending current to the powered device through the POE power supply module with the current value I and the voltage value V;

[0058] S240, after a set interval duration, reading the voltage test value v returned by the powered device, and determining whether the voltage test value v is greater than or equal to V_min; if so, execute S250; otherwise, execute S270;

[0059] S250, determining whether the power supply chip has received a trigger signal sent by the probe module to control the switch to disconnect the power supply; if so, execute S260; if not, execute S280; where the switch is provided between the power supply device and the POE power supply module, the detection end of the switch is connected to the probe module, the output end of the probe module is connected to the detection pin of the control chip, and the control pin of the control chip is connected to the control end of the switch;

[0060] S260, controlling the switch to disconnect, and after decreasing the voltage value V by one voltage difference, determining whether the voltage value V has decreased to V_min; if so, execute S270; otherwise, execute S230;

[0061] S270, after decreasing the current value I by one current difference, determining whether the current value I has decreased to I_min; if so, execute S280; otherwise, execute S230;

[0062] S280. Determine the power supply requirements of the powered device to be matched.

[0063] In a POE power supply control method of the present invention, when power supply is required, the power supply device supplies power to the powered device through the POE power supply module. The power supply device conducts tests by sending currents of different voltages and controls through the power supply chip and the probe module. When the powered device requires the power supply device to supply power, the power supply device conducts tests by sending currents of different voltages. If the voltage meets the standard, the switch is turned on to supply power; if it does not meet the standard, the switch is not turned on. On the premise of ensuring power supply safety, the power supply requirements of the power supply device and the powered device are matched, and the optimal power supply method is determined.

[0064] In an embodiment, in S250, the determination of whether the power supply chip receives a trigger signal sent by the probe module to disconnect the power supply of the control switch includes:

[0065] If the power supply chip receives the trigger signal sent by the probe module to disconnect the power supply of the control switch, it reports the monitoring information of receiving the trigger signal to the power supply device; wherein, the monitoring information is reported after the power supply chip receives the trigger signal sent by the probe module to disconnect the power supply of the control switch, and the trigger signal is sent to the power supply chip when the power absorbed by the probe module continuously exceeds the power threshold and causes the probe module to overheat.

[0066] When the power supply device pushes power to the POE power supply module, during the power supply process, it can negotiate and handshake with the POE power supply module through the power supply chip (an IC chip with the model of IC808AR) and then supply power through the power supply port corresponding to the POE power supply module. The heat of the probe module is positively correlated with the magnitude of the power it absorbs. When the power absorbed by the probe module exceeds the power threshold and causes the probe module to overheat, it triggers the power supply chip to control the switch to turn off the power supply; in an embodiment, the value range of the power threshold is from I_min * V_min to I_max * V_max.

[0067] In an embodiment, the probe module includes a built-in probe module and an external probe module. The switch, the built-in probe module, and the external probe module are connected in sequence. The method further includes:

[0068] If the power supply chip receives a trigger signal sent by any one of the built-in probe module and the external probe module to disconnect the power supply of the control switch, the control switch is disconnected.

[0069] When current passes through the built-in probe module, the built-in probe module will convert heat according to the magnitude of the power passing through. When the power is too large and causes the built-in probe module to overheat, it will inform the power supply chip to cut off the power supply. When the built-in probe module fails, it will be detected by the external probe module. When the power is too large, it will cause the external probe module to overheat and generate a fusing reaction, triggering the power supply chip to disconnect the power supply.

[0070] In one embodiment, in S300, after determining to match the power supply demand of the power receiving device, providing power to the power receiving device includes:

[0071] After determining to match the power supply demand of the power receiving device, set the handshake state between the power supply chip and the power receiving device to complete, and trigger the power supply chip to set the switch to the on state to provide power to the power receiving device.

[0072] Refer to Figure 4 In one embodiment, after S300, the method further includes:

[0073] In response to an operation request for controlling the power receiving device on the management interface, parse the power control parameters corresponding to the operation request, and provide power to the corresponding power receiving device with the power control parameters; wherein, the power control parameters corresponding to the operation request include at least one of switch control, voltage control, current control, and power control.

[0074] Specifically, click the turn-on button using the management interface to manage the power supply mode of the corresponding power receiving device through the virtual switch on the management interface, including controlling the magnitude of the power, and the specific power supply situation can be viewed through the page. When the power receiving device does not temporarily require power supply from the POE power supply module, click the turn-off button.

[0075] The POE technology provided by the present invention further includes a power supply management mechanism to improve power supply efficiency and stability. The power supply management mechanism can monitor the power supply demand of the power receiving device, dynamically adjust the power supply voltage and current to meet the needs of different devices, and avoid power supply overloading and underloading. The power supply management mechanism can also optimize energy utilization, reduce energy waste, thereby improving the energy efficiency and environmental friendliness of the system.

[0076] In addition, refer to Figure 5 One embodiment of the present invention further provides a POE power supply control system, which includes a power supply device, and the power supply device includes a POE power supply module and:

[0077] At least one processor;

[0078] At least one memory for storing at least one program;

[0079] When the at least one program is executed by the at least one processor, the at least one processor implements the above-mentioned method.

[0080] It can be seen that the content in the above method embodiments is applicable to the system embodiments of the present invention. The functions specifically implemented by the system embodiments of the present invention are the same as those of the above method embodiments, and the beneficial effects achieved are also the same as those of the above method embodiments.

[0081] In addition, an embodiment of the present invention further provides a computer-readable storage medium. The computer-readable storage medium stores computer-executable instructions. When the computer-executable instructions are executed by a processor or a controller, for example, executed by a processor in the above-mentioned electronic device embodiments, the above-mentioned processor can execute a POE power supply control method in the above embodiments.

[0082] Similarly, the content in the above method embodiments is applicable to the storage medium embodiments of the present invention. The functions specifically implemented by the storage medium embodiments of the present invention are the same as those of the above method embodiments, and the beneficial effects achieved are also the same as those of the above method embodiments.

[0083] Those of ordinary skill in the art can understand that all or some of the steps and systems disclosed in the above methods can be implemented as software, firmware, hardware, and appropriate combinations thereof. Some physical components or all physical components can be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or implemented as hardware, or implemented as an integrated circuit, such as an application-specific integrated circuit. Such software can be distributed on a computer-readable medium, which can include a computer storage medium (or a non-transitory medium) and a communication medium (or a transitory medium). As is well known to those of ordinary skill in the art, the term computer storage medium includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information, such as computer-readable instructions, data structures, program modules, or other data. Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory, or other memory technologies, CD-ROM, digital versatile disk (DVD), or other optical disk storage, magnetic cassette, tape, magnetic disk storage, or other magnetic storage devices, or any other medium that can be used to store the desired information and can be accessed by a computer. In addition, as is well known to those of ordinary skill in the art, a communication medium generally includes computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transmission mechanism, and can include any information delivery medium.

[0084] The above is a specific description of the preferred embodiments of the present disclosure. However, the present disclosure is not limited to the above embodiments. Those skilled in the art can make various equivalent deformations or substitutions without departing from the spirit of the present disclosure, and these equivalent deformations or substitutions are all included within the scope defined by the claims of the present disclosure.

Claims

1. A POE power supply control method, characterized in that, The method is applied to a power supply device, which includes a POE power supply module. The method includes the following steps: Respond to the communication connection request sent by the power receiving device and establish a communication connection with the power receiving device; Respond to the power supply request sent by the power receiving device and send current to the power receiving device through the POE power supply module to match the power supply demand of the power receiving device; After determining that the power supply demand of the power receiving device is matched, provide power to the power receiving device; The step of responding to the power supply request sent by the power receiving device and sending current to the power receiving device through the POE power supply module to match the power supply demand of the power receiving device includes: S210, obtain the power receiving information of the power receiving device. The power receiving information of the power receiving device includes a voltage range, a current range, and a power range. The current range is from I_min to I_max, the voltage range is from V_min to V_max, and the power range is from I_min*V_min to I_max*V_max; S220, initialize the current value I of the power supply device to I_max and initialize the voltage value V to V_max; S230, send current to the power receiving device through the POE power supply module with the current value I and the voltage value V; S240, after a set interval duration, read the voltage test value v returned by the power receiving device and determine whether the voltage test value v is greater than or equal to V_min; if so, execute S250; otherwise, execute S270; S250, determine whether the power supply chip receives a trigger signal sent by the probe module to disconnect the power supply of the control switch; if so, execute S260; if not, execute S280; wherein, the switch is arranged between the power supply device and the POE power supply module, the detection end of the switch is connected with a probe module, the output end of the probe module is connected with the detection pin of the control chip, and the control pin of the control chip is connected with the control end of the switch; S260, control the switch to disconnect, and after decreasing the voltage value V by one voltage difference, determine whether the voltage value V has decreased to V_min; if so, execute S270; otherwise, execute S230; S270, after decreasing the current value I by one current difference, determine whether the current value I has decreased to I_min; if so, execute S280; otherwise, execute S230; S280, determine that the power supply demand of the power receiving device is matched.

2. The POE power supply control method according to claim 1, characterized in that The step of responding to the communication connection request sent by the power receiving device and establishing a communication connection with the power receiving device includes: Respond to the communication connection request sent by the power receiving device, send a first digital signature containing the identity information of the power supply device to the power receiving device, and accept the second digital signature containing the identity information of the power receiving device sent by the power receiving device; After the verification of the second digital signature is passed and a message indicating that the verification of the first digital signature is passed is received from the power receiving device, establish a communication connection with the power receiving device.

3. A POE power supply control method according to claim 1, characterized in that The step of determining whether the power supply chip receives a trigger signal sent by the probe module to disconnect the power supply of the control switch includes: If the power supply chip receives a trigger signal sent by the probe module to disconnect the power supply of the control switch, it reports the monitoring information of receiving the trigger signal to the power supply device; wherein, the monitoring information is reported after the power supply chip receives the trigger signal sent by the probe module to disconnect the power supply of the control switch, and the trigger signal is sent to the power supply chip when the power absorbed by the probe module continuously exceeds the power threshold, resulting in overheating of the probe module.

4. The POE power supply control method according to claim 3, wherein The probe module includes a built-in probe module and an external probe module. The switch, the built-in probe module, and the external probe module are connected in sequence. The method further includes: If the power supply chip receives a trigger signal sent by either the built-in probe module or the external probe module to disconnect the power supply of the control switch, the control switch is disconnected.

5. A POE power supply control method according to claim 1, characterized in that, The providing power to the power receiving device after determining to match the power supply demand of the power receiving device includes: After determining to match the power supply demand of the power receiving device, set the handshake state of the power supply chip and the power receiving device to completed, and trigger the power supply chip to set the switch to the conducting state to provide power to the power receiving device.

6. The POE power supply control method according to claim 1, wherein The method further includes: In response to an operation request for controlling the power receiving device on the management interface, parse the power control parameters corresponding to the operation request, and provide power to the corresponding power receiving device with the power control parameters; wherein, the power control parameters corresponding to the operation request include at least one of switch control, voltage control, current control, and power control.

7. A POE power supply control system, characterized in that 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 implements a POE power supply control method according to any one of claims 1 to 6.

8. A computer-readable storage medium storing computer-executable instructions, characterized in that, The computer-executable instructions are executed by a processor to implement a POE power supply control method according to any one of claims 1 to 6.

Images