CN112422298B - POE power supply device, method and system - Google Patents
POE power supply device, method and system Download PDFInfo
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- CN112422298B CN112422298B CN202011129790.5A CN202011129790A CN112422298B CN 112422298 B CN112422298 B CN 112422298B CN 202011129790 A CN202011129790 A CN 202011129790A CN 112422298 B CN112422298 B CN 112422298B
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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 embodiment of the invention provides a POE power supply device, method and system, comprising: the device comprises a power supply module, a first voltage regulating module, a first communication module and a first control module; the power supply module is connected with the plurality of first voltage regulating modules and used for inputting initial voltage into the first voltage regulating modules; the first communication module is connected with the first control module and used for receiving configuration voltage information sent by the POE powered device through a connecting line; the first control module is connected with the first voltage regulating module and used for acquiring a target working voltage according to the configuration voltage information; and the first voltage regulation module is used for converting the initial voltage into a target working voltage and inputting the target working voltage into the POE powered device. The POE power supply device, the POE power supply method and the POE power supply system provided by the embodiment of the invention can realize that the POE power supply device can meet the power supply requirements of different voltages of the POE power-receiving device more simply and conveniently, simplify the POE power supply device and reduce the equipment input cost.
Description
Technical Field
The invention relates to the technical field of power supply, in particular to a POE power supply device, method and system.
Background
The Power Over Ethernet (POE) technology is a technology for transmitting data signals to an IP terminal and providing dc Power to the IP terminal based on the existing Ethernet wiring infrastructure. The POE system is composed of a Power Sourcing Equipment (PSE) and a Powered Device (PD), where the POE is configured to supply Power to the Powered Device.
The power supply requirements of different voltages of the POE power-receiving device are met by the conventional POE power supply device, and a plurality of paths of power supplies with different voltages are required to be arranged in the POE power supply device. However, the more voltages involved in the above method, the more complicated the configuration of the POE power supply device, and voltage configuration errors are likely to occur, which results in damage to the POE powered device. If the voltage required by the subsequent POE power receiving device is not provided with a corresponding power supply in the POE power supply device, the POE power supply device needs to be replaced, and the input cost is higher.
Disclosure of Invention
The embodiment of the invention provides a POE power supply device, method and system, which are used for solving the defect that the configuration of the POE power supply device in the prior art is complex, and realizing that the POE power supply device can meet the power supply requirements of different voltages of a POE power-receiving device more flexibly, more simply and lower in cost.
An embodiment of the present invention provides a POE power supply device, including: the device comprises a power supply module, a first voltage regulating module, a first communication module and a first control module;
the power supply module is connected with the plurality of first voltage regulating modules and is used for inputting initial voltage into the first voltage regulating modules;
the first communication module is connected with the first control module and used for receiving configuration voltage information sent by the POE powered device through a connecting line; wherein the configuration voltage information includes a working voltage of the POE powered device;
the first control module is connected with the first voltage regulating module and used for acquiring a target working voltage according to the configuration voltage information;
the first voltage regulation module is configured to convert the initial voltage into the target working voltage, and input the target working voltage to the POE powered device;
wherein, the connecting wire is used for connecting POE power supply unit with POE receives the power device.
According to the POE power supply device of an embodiment of the present invention, the configuration voltage information further includes a power supply mode of the POE powered device;
correspondingly, the first control module is specifically configured to, if it is determined that the power supply mode is the boost power supply mode, determine whether a sum of a target working voltage of a current period and a preset voltage increment exceeds an upper limit of the working voltage; and if the current working voltage does not exceed the preset voltage increment, taking the sum of the target working voltage of the current period and the preset voltage increment as the working voltage of the next period.
According to the POE power supply device of an embodiment of the present invention, the first control module is further configured to receive real-time operating state information of a power receiving circuit in the POE power receiving device, where the real-time operating state information is sent by the POE power receiving device; and if the power supply abnormity is judged and obtained according to the real-time working state information of the power receiving circuit, responding according to the power supply abnormity.
An embodiment of the present invention provides a POE powered device, including: the power receiving circuit comprises a first control module, a first voltage regulating module, a first communication module and a power receiving circuit;
the second control module is connected with the second voltage regulating module and used for storing configuration voltage information; wherein the configuration voltage information includes a working voltage of the POE powered device;
the second communication module is connected with the second control module and is used for sending the configuration voltage information to a POE (power over Ethernet) power supply device through a connecting line so that the POE power supply device can obtain a target working voltage according to the configuration voltage information and input the target working voltage into the second voltage regulation module;
the second voltage regulation module is used for inputting the target working voltage into the power receiving circuit;
wherein, the connecting wire is used for connecting the POE powered device and the POE power supply device.
According to the POE powered device in an embodiment of the present invention, the second control module is further configured to acquire real-time operating state information of the powered circuit;
the second communication module is further configured to send the real-time working state information of the power receiving circuit to the POE power supply device, so that the POE power supply device responds to the power supply abnormality if determining that the power supply abnormality is known according to the real-time working state information of the power receiving circuit.
An embodiment of the present invention provides a POE power supply method based on any of the foregoing POE power supply devices, including:
receiving configuration voltage information sent by a POE powered device; wherein the configuration voltage information includes a working voltage of the POE powered device;
acquiring target working voltage according to the configuration voltage information;
converting an initial voltage into the target working voltage, and inputting the target working voltage into the POE powered device;
wherein the initial voltage is an output voltage of a power module in the POE power supply device.
According to the POE power supply method in one embodiment of the present invention, the configuration voltage information further includes a power supply mode of the POE powered device;
correspondingly, the obtaining of the target working voltage according to the configuration voltage information specifically includes:
if the power supply mode is judged to be the boosting power supply mode, judging whether the sum of the target working voltage of the current period and a preset voltage increment exceeds the upper limit of the working voltage or not; and if the current working voltage does not exceed the preset voltage increment, taking the sum of the target working voltage of the current period and the preset voltage increment as the working voltage of the next period.
The POE power supply method according to an embodiment of the present invention further includes:
receiving real-time working state information of a power receiving circuit in a POE power receiving device, wherein the real-time working state information is sent by the POE power receiving device;
and if the power supply abnormity is judged and obtained according to the real-time working state information of the power receiving circuit, responding according to the power supply abnormity.
An embodiment of the present invention provides a POE power supply method based on any one of the POE powered devices, including:
sending configuration voltage information to a POE power supply device, so that the POE power supply device obtains a target working voltage according to the configuration voltage information, and inputting the target working voltage into the POE powered device; wherein the configuration voltage information comprises a working voltage;
and inputting the target working voltage into a power receiving circuit in the POE power receiving device.
An embodiment of the present invention further provides a POE power supply system, including: any one of the above-mentioned POE power supply unit and a plurality of above-mentioned POE powered device.
According to the POE power supply device, the POE power supply method and the POE power supply system, the configuration voltage information sent by the POE power receiving device is received through the first communication module, the first control module obtains the target working voltage according to the configuration voltage information received by the first communication module, converts the initial voltage provided by the power supply module into the target working voltage and inputs the target working voltage into the POE power receiving device, the POE power supply device can meet the power supply requirements of the POE power receiving device for different voltages more simply and conveniently, the POE power supply device can be simplified, power supply errors can be reduced, the POE power supply device can be more flexibly suitable for various application scenes, and the equipment input cost can be reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a POE power supply device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a POE powered device according to an embodiment of the present invention;
fig. 3 is a schematic flowchart of a POE power supply method according to an embodiment of the present invention;
fig. 4 is a schematic flowchart of a POE power supply method according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a POE power supply system according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a work flow of a POE power supply system according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. Specific meanings of the above terms in the embodiments of the present invention may be understood as specific cases by those of ordinary skill in the art.
In order to solve the above problems in the prior art, embodiments of the present invention provide a POE power supply device, method, and system, where voltage configuration information is sent to the POE power supply device by a POE powered device, so that the POE power supply device can convert an initial voltage into a target operating voltage according to the voltage configuration information, and supply power to the POE powered device at the target operating voltage, so that the POE power supply device can meet power supply requirements of different voltages of the POE powered device more flexibly, more easily, and at a lower cost.
Fig. 1 is a schematic structural diagram of a POE power supply device according to an embodiment of the present invention. The POE power supply device according to the embodiment of the present invention is described below with reference to fig. 1. As shown in fig. 1, the POE power supply device includes: a power module 101, a first voltage regulation module 102, a first communication module 103, and a first control module 104.
The POE power supply device can provide power for the POE powered device, and can also manage the whole power supply process.
The power module 101 is connected to the first voltage regulating modules 102, and is configured to input an initial voltage to the first voltage regulating modules 102.
The power module 101 may be a dc power supply, and the type of the power module 101 may be a dc regulated power supply or a battery power supply.
The power module 101 may be configured to provide a stable initial voltage for the POE power supply device.
The initial voltage is an output voltage with a fixed value, which is input to the first voltage regulating module 102 by the power supply module 101. For example: the power supply module 101 inputs 72V dc voltage to the first voltage regulating module 102, and the initial voltage is 72V.
The power module 101 may also be configured to convert an externally input ac voltage or a dc voltage into an initial voltage; if the voltage input from the outside is the initial voltage, no conversion is needed.
The power supply module 101 is connected to a plurality of first voltage regulation modules 102, and the power supply module 101 may input an initial voltage to each of the voltage regulation modules 102. Each voltage regulation module 102 may be configured to convert an initial voltage input by the power module 101 to a voltage of any magnitude.
It should be noted that, before the POE power supply device supplies power to the POE powered device, the first voltage adjustment module 102 may convert the initial voltage input by the power module 101 into the device power supply voltage, and input the device power supply voltage to the first control module 104 and the POE powered device.
It should be noted that the device supply voltage may be a lower voltage, so that after the device supply voltage is input to the first control module 104, the first control module 104 works normally, for example: the device supply voltage may take any value within 2V-10V. Preferably, the device supply voltage is 3.3V.
The first communication module 103 is connected to the first control module 104, and is configured to receive, through the connection line 105, configuration voltage information sent by the POE powered device. Wherein, the configuration voltage information includes the operating voltage of the POE powered device.
Wherein, the connecting wire 105 is used for connecting the POE power supply device and the POE powered device.
Specifically, POE power supply unit and POE powered device pass through connecting wire 105 intercommunication, and POE power supply unit can pass through connecting wire 105 and receive the power supply of device to POE, and the transmission of communication signal between POE power supply unit and the POE powered device also can be accomplished through connecting wire 105.
The connection 105 may be a network cable.
Before the POE power supply device supplies power to the POE powered device, the first voltage regulation module 102 inputs the device power supply voltage to the POE powered device through the connection line 105, so that the POE powered device is powered on and then transmits configuration voltage information to the first communication module 103.
The first communication module 103 is connected to the first control module 104, and the device supply voltage output by the voltage module 101 may be input to the first communication module 103 through the first control module 104.
After the first communication module 103 is powered on, the configuration voltage information sent by the POE powered device can be received through the connection line 105 between the POE power supply device and the POE powered device. Further, the first communication module 103 may be further configured to send the received configuration voltage information to the first control module 104.
The configuration voltage information may include an operating voltage of the POE powered device.
Specifically, the working voltage of the POE powered device refers to a voltage required by the POE powered device to normally work. The working voltage may be a specific working voltage, or may be a working voltage range interval, which indicates that the POE powered device can normally work under the specific working voltage, or within the working voltage range interval.
It should be noted that the upper limit of the operating voltage of the POE powered device refers to a maximum value within the operating voltage range of the POE powered device, and is a maximum voltage that the POE powered device can support.
It should be noted that, after the first communication module 103 is powered on, it may also be configured to monitor a communication signal in the connection line 105, and determine whether the POE powered device is connected to the POE power supply device by monitoring the communication signal in the connection line 105.
And the first control module 104 is connected to the first voltage regulating module 102, and is configured to obtain the target operating voltage according to the configuration voltage information.
After the first control module 104 is powered on, the target working voltage may be obtained according to the working voltage of the POE powered device included in the configuration voltage information.
Specifically, if the operating voltage of the POE powered device is a specific operating voltage, the first control module may obtain the specific operating voltage as the target operating voltage.
If the operating voltage of the POE powered device is within a working voltage range, the first control module may obtain a minimum value within the working voltage range or an arbitrary value within the working voltage range, and use the minimum value or the arbitrary value as the target operating voltage.
The first control module 104 is connected to the first voltage regulation module 102, and may send a voltage regulation instruction carrying the target operating voltage to the first voltage regulation module 102.
The first voltage regulation module 102 is configured to convert the initial voltage into a target working voltage, and input the target working voltage into the POE powered device.
Specifically, the first voltage regulation module 102 may convert the initial voltage into the target operating voltage according to the voltage regulation instruction sent by the first control module 104.
The first voltage regulation module 102 may further output the target operating voltage to the POE powered device through the connection line 105.
It should be noted that the first voltage adjustment module 102 may simultaneously input a power supply voltage to the first communication module 103, the first control module 104, and the POE powered device, or simultaneously input a power supply voltage to the first communication module 103 and the first control module 104, and input a target operating voltage to the POE powered device.
According to the embodiment of the invention, the configuration voltage information sent by the POE powered device is received through the first communication module, the first control module obtains the target working voltage according to the configuration voltage information received by the first communication module, converts the initial voltage provided by the power supply module into the target working voltage and inputs the target working voltage into the POE powered device, so that the POE power supply device can meet the power supply requirements of the POE powered device on different voltages more simply and conveniently, the POE power supply device can be simplified, the power supply errors can be reduced, the POE power supply device can be more flexibly suitable for various application scenes, and the equipment investment cost can be reduced.
Based on the content of the foregoing embodiments, the configuration voltage information further includes a power supply mode of the POE powered device.
Specifically, the power supply mode of the POE powered device is used to describe a manner in which the POE power supply device supplies power to the POE powered device.
The power supply mode of the POE powered device may include: a fixed voltage supply mode, a boosted voltage supply mode, and the like.
The fixed voltage power supply mode means that the target operating voltage input by the POE power supply device to the POE powered device remains unchanged during power supply.
It should be noted that, if the operating voltage of the POE powered device is a certain specific operating voltage, the operating mode of the POE powered device is the fixed voltage power supply mode. In the fixed voltage power supply mode, if the target operating voltage of the input POE powered device is not the specific operating voltage, the POE powered device may be abnormal.
The boost power supply mode refers to that, during power supply, the target operating voltage input by the POE power supply device to the POE powered device is gradually increased.
It should be noted that, if the operating voltage of the POE powered device is within a certain operating voltage range, the operating mode of the POE powered device may be a boost power supply mode or a fixed voltage power supply mode.
POE receives the pressure boost power supply mode of device, can be in the within range that POE received the operating voltage of device allows, through the voltage of crescent input POE received the device to make the electric current reduce correspondingly, thereby reduce the heat loss of circuit.
Correspondingly, the first control module 104 is specifically configured to, if it is determined that the power supply mode is the boost power supply mode, determine whether a sum of the target operating voltage in the current period and the preset voltage increment exceeds an upper limit of the operating voltage. And if the voltage does not exceed the preset voltage increment, taking the sum of the target working voltage of the current period and the preset voltage increment as the working voltage of the next period.
Specifically, if the first control module 104 determines that the power supply mode is the boost power supply mode, it may be indicated that the POE powered device can normally work within a certain working voltage range.
The boosting process of any one cycle may include: and outputting the target working voltage of the current period and judging whether the next period continues to be boosted.
Specifically, the first voltage regulation module 102 outputs the target operating voltage of the current period to the POE powered device.
The step of judging whether the next period continues to be pressurized comprises the following steps: the first control module 104 obtains a sum of the target working voltage of the current period and a preset voltage increment, and determines whether the sum of the target working voltage of the current period and the preset voltage increment exceeds an upper limit of the working voltage.
If the first control module 104 determines that the upper limit of the working voltage is not exceeded, the sum of the target working voltage in the current period and the preset voltage increment is used as the target working voltage in the next period.
After the target operating voltage of the next period is obtained, the current time reaches the next period, and the boosting process of the next period can be started.
If the first control module 104 determines that the sum of the target working voltage of the current period and the preset voltage increment exceeds the upper limit of the working voltage, the power is continuously supplied by the target working voltage of the current period, and the power is not boosted.
The duration of each period is a preset duration threshold.
It should be noted that the first control module 104 may obtain a minimum value in the operating voltage range interval or an arbitrary value in the operating voltage range interval as the target operating voltage of the first period.
It should be noted that specific values of the preset voltage increment and the preset time threshold may be determined according to actual situations, and embodiments of the present invention are not limited specifically.
It should be noted that, in order to protect the POE powered device, the target operating voltage input by the first voltage regulating module 102 to the POE powered device cannot exceed the upper limit of the operating voltage of the POE powered device. If the target operating voltage input to the POE powered device by the first voltage regulation module 102 exceeds the upper limit of the operating voltage of the POE powered device, the POE powered device may be abnormal or even damaged.
It should be noted that, the first control module 104 is specifically configured to, if it is determined that the power supply mode is the fixed voltage power supply mode, keep the target operating voltage input by the POE power supply device to the POE powered device unchanged during power supply.
Specifically, if the working voltage of the POE powered device is a specific working voltage, the first control module 104 may obtain the specific working voltage as a target working voltage. The first voltage regulation module 102 outputs the target operating voltage to the POE powered device, and keeps the target operating voltage unchanged during power supply.
If the operating voltage of the POE powered device is within a working voltage range, the first control module 104 may obtain a minimum value within the working voltage range or an arbitrary value within the working voltage range, as the target operating voltage. The first voltage regulation module 102 outputs the target operating voltage to the POE powered device, and keeps the target operating voltage unchanged during power supply.
According to the embodiment of the invention, the POE power receiving device is periodically boosted and powered in the boosting power supply mode, so that the current in the POE power receiving device can be reduced, and the heat loss of a line can be reduced.
Based on the content of the foregoing embodiments, the first control module 104 is further configured to receive real-time operating state information of a power receiving circuit in the POE powered device, where the real-time operating state information is sent by the POE powered device; and if the power supply abnormity is judged and obtained according to the real-time working state information of the power receiving circuit, responding according to the power supply abnormity.
The real-time operating status information of the power receiving circuit in the POE power receiving device may include, but is not limited to: at least one of a voltage fluctuation amplitude, a current fluctuation amplitude, and a power consumption fluctuation amplitude in the power receiving circuit.
After receiving the real-time operating status information, the first control module 104 may determine whether a power supply abnormality occurs to a power receiving circuit in the POE power receiving device at the current time according to the real-time operating status information.
It should be noted that the power supply abnormality may include, but is not limited to: abnormal fluctuation of voltage, abnormal fluctuation of current, or abnormal fluctuation of power consumption, for example: the voltage or current is excessive.
If the first control module 104 determines to know whether the power supply abnormality occurs in the power receiving circuit in the POE power receiving device at the current time, the response is performed according to the power supply abnormality.
Specifically, if the power supply mode of the POE powered device is the fixed voltage power supply mode, the first control module 104 may send a power supply stop instruction to the first voltage regulation module 102, and after the first voltage regulation module 102 receives the power supply stop instruction, the first control module stops inputting the target operating voltage to the POE powered device.
If the power supply mode of the POE powered device is the voltage boosting power supply mode, the first control module 104 sends a voltage return instruction to the first voltage regulation module 102, and after receiving the voltage return instruction, the first voltage regulation module 102 converts the initial voltage into the target working voltage of the previous period, and inputs the target working voltage of the previous period to the POE powered device.
It should be noted that, after the first voltage regulation module 102 inputs the target working voltage of the last period to the POE powered device, the first control module 104 determines, according to the real-time working state information, that the power supply abnormality still occurs in the powered circuit in the POE powered device at the current time, and then the first control module 104 sends a power supply stop instruction to the first voltage regulation module 102, and after the first voltage regulation module 102 receives the power supply stop instruction, the target working voltage input to the POE powered device is stopped.
The first voltage regulation module 102 may also be configured to trigger an alarm when it is determined that a power supply abnormality occurs in a powered circuit in the POE powered device at the current time, and may alarm in a sound, light, or other alarm manner.
The POE power supply device may further include a network module.
First voltage regulation module 102 can record the relevant information of the real-time operating condition information and the power supply abnormality of the power receiving circuit in the POE power receiving device, and send the relevant information of the real-time operating condition information and the power supply abnormality to the server through the network module, and provide a data basis for operation and maintenance analysis of engineering personnel.
According to the embodiment of the invention, the first control module judges and learns that the power supply abnormality occurs to the power receiving circuit in the POE power receiving device at the current moment according to the received real-time working state information of the power receiving circuit, returns to the target power supply voltage of the previous period or stops power supply according to the power supply abnormality, reports the real-time working state information and the related information of the power supply abnormality, can protect the power receiving circuit, can improve the safety of POE power supply, and can provide a data basis for operation and maintenance analysis of engineering personnel.
Fig. 2 is a schematic structural diagram of a POE powered device according to an embodiment of the present invention. The POE powered device according to the embodiment of the present invention is described below with reference to fig. 2. As shown in fig. 2, the POE powered device includes: a second control module 201, a second voltage regulation module 202, a second communication module 203 and a powered circuit 204 are included.
The POE powered device may be a device that receives power from the POE power supply device.
And the second control module 201 is connected with the second voltage regulation module 202 and is used for storing the configuration voltage information. The configuration voltage information includes a working voltage of the POE powered device.
Specifically, the working voltage of the POE powered device refers to a voltage required by the POE powered device to normally work. The working voltage may be a specific working voltage, or may be a working voltage range interval, which indicates that the POE powered device can normally work at the specific working voltage, or within the working voltage range interval.
It should be noted that the upper limit of the operating voltage of the POE powered device refers to the maximum value within the operating voltage range of the POE powered device, and is the highest voltage that the POE powered device can support.
The second communication module 203 is connected to the second control module 201, and is configured to send configuration voltage information to the POE power supply device through the connection line 105, so that the POE power supply device obtains a target working voltage according to the configuration voltage information, and inputs the target working voltage to the second voltage adjustment module 202.
Wherein, connecting wire 105 for connect POE powered device and POE power supply unit.
The POE power supply device is connected to the second voltage regulation module 202 through the connection line 105, and inputs the device supply voltage or the target operating voltage to the second voltage regulation module 202.
Specifically, before the POE power supply device supplies power to the POE powered device, the POE power supply device inputs the device power supply voltage to the second voltage regulation module 202.
After the second voltage adjusting module 202 is powered on, the input device power supply voltage may be output to the second control module 201, and then may be output to the second communication module 203 through the second control module 201.
It should be noted that the device supply voltage may be a lower voltage, so that after the device supply voltage is input to the first control module 104, the first control module 104 works normally, for example: the device supply voltage may take any value within 2V-10V. Preferably, the device supply voltage is 3.3V.
The transmission of the communication signal between the POE power supply device and the POE powered device can also be completed through the connection line 105.
Specifically, after the second communication module 203 is powered on, the configuration voltage information stored in the second control module 201 may be sent to the POE power supply device through the connection line 105.
The POE power supply device obtains the target operating voltage according to the configuration voltage information, and inputs the target operating voltage to the second voltage adjustment module 202.
It should be noted that, after being powered on, the second communication module 203 may be configured to send a communication signal to the POE power supply device through the connection line 105.
POE power supply unit can judge and learn that POE powered device has been connected with POE power supply unit through monitoring the communication signal in connecting wire 105.
A second voltage regulating module 202, configured to input the target operating voltage to the powered circuit 204.
The powered circuit 204 is a circuit that receives power from the POE power device, and specifically is a circuit that implements a main function in the POE powered device.
It should be noted that the second voltage regulating module 202 may also be configured to convert the target operating voltage into a device supply voltage, and input the device supply voltage into the second control module 201. The second voltage regulation module 202 may simultaneously input the device power supply voltage to the second communication module 203 and the second control module 201, and input the target operating voltage to the POE powered device.
According to the embodiment of the invention, the configuration voltage information stored by the second control module is sent to the POE power supply device through the second communication module, the POE power supply device obtains the target working voltage according to the configuration voltage information and then inputs the target working voltage into the second voltage regulating module, and the second voltage regulating module inputs the target working voltage into the power receiving circuit, so that the POE power supply device can meet the power supply requirements of different voltages of the POE power receiving device more simply and conveniently, the POE power supply device can be simplified, the power supply errors can be reduced, the POE power supply device can be more flexibly suitable for various application scenes, and the equipment input cost can be reduced.
Based on the content of the foregoing embodiments, the second control module 201 is further configured to obtain real-time operating status information of the power receiving circuit.
The real-time operating state information of the powered circuit may include, but is not limited to: at least one of a voltage fluctuation amplitude, a current fluctuation amplitude, and a power consumption fluctuation amplitude in the power receiving circuit.
The second control module 201 may obtain the real-time operating status information of the powered circuit in a real-time monitoring manner.
The second communication module 203 is further configured to send the real-time operating state information of the power receiving circuit to the POE power supply device, so that the POE power supply device responds to the power supply abnormality if determining that the power supply abnormality is known according to the real-time operating state information of the power receiving circuit.
Specifically, the second communication module 203 sends the real-time operating state information of the power receiving circuit to the first control module 104 in the POE power supply device through the connection line 105 with the POE power supply device.
The first control module 104 determines whether the power supply abnormality occurs in the powered circuit at the current time according to the real-time operating status information of the powered circuit.
If the first control module 104 determines that it is known whether the power supply abnormality occurs in the Power Over Ethernet (POE) powered device at the current time, a response is made according to the power supply abnormality.
According to the embodiment of the invention, after the real-time working state information of the power receiving circuit is acquired through the second control module, the real-time working state of the power receiving circuit is sent to the POE power supply device through the second communication module, the POE power supply device judges and learns that the power supply abnormality of the power receiving circuit in the POE power receiving device at the current moment according to the real-time working state of the power receiving circuit, and responds according to the power supply abnormality, so that the power receiving circuit can be protected, the safety of the POE power supply can be improved, and a data basis can be provided for operation and maintenance analysis of engineering personnel.
Fig. 3 is a flowchart illustrating a POE power supply method according to an embodiment of the present invention. The POE power supply method according to the embodiment of the present invention is described below with reference to fig. 3. As shown in fig. 3, the method includes: step S301, receiving configuration voltage information sent by the POE powered device. The configuration voltage information includes a working voltage of the POE powered device.
It should be noted that the main execution entity of the POE power supply method according to the embodiment of the present invention is a POE power supply device.
The POE power supply device can receive configuration voltage information sent by the POE powered device.
The configuration voltage information may include an operating voltage of the POE powered device.
Specifically, the working voltage of the POE powered device refers to a voltage required by the POE powered device to normally work. The working voltage may be a specific working voltage, or may be a working voltage range interval, which indicates that the POE powered device can normally work at the specific working voltage, or within the working voltage range interval.
It should be noted that the upper limit of the operating voltage of the POE powered device refers to the maximum value within the operating voltage range of the POE powered device, and is the highest voltage that the POE powered device can support.
And step S302, acquiring a target working voltage according to the configuration voltage information.
The POE power supply device can acquire the target operating voltage according to the operating voltage of the POE powered device included in the configuration voltage information.
Specifically, if the operating voltage of the POE powered device is a specific operating voltage, the specific operating voltage may be obtained as the target operating voltage.
If the operating voltage of the POE powered device is within an operating voltage range, the minimum value within the operating voltage range or any value within the operating voltage range may be obtained as the target operating voltage.
Step S303, convert the initial voltage into a target operating voltage, and input the target operating voltage into the POE powered device.
The POE power supply device can convert the initial voltage into a target working voltage, and inputs the target working voltage into the POE powered device.
The initial voltage is an output voltage of a power module in the POE power supply device.
The initial voltage may be a voltage-fixed output voltage provided by a power module in the POE power supply device.
According to the embodiment of the invention, the POE power supply device receives the configuration voltage information sent by the POE power receiving device, the target working voltage is obtained according to the configuration voltage information, the initial voltage provided by the power module is converted into the target working voltage and then is input into the POE power receiving device, so that the POE power supply device can meet the power supply requirements of the POE power receiving device on different voltages more simply and conveniently, the POE power supply device can be simplified, the power supply errors can be reduced, the POE power supply device can be more flexibly suitable for various application scenes, and the equipment investment cost can be reduced.
Based on the content of the foregoing embodiments, the configuration voltage information further includes a power supply mode of the POE powered device.
Specifically, the power supply mode of the POE powered device is used to describe a manner in which the POE power supply device supplies power to the POE powered device.
The power supply mode of the POE powered device may include: a fixed voltage supply mode, a boosted voltage supply mode, and the like.
The fixed voltage power supply mode means that the target operating voltage input by the POE power supply device to the POE powered device remains unchanged during power supply.
It should be noted that, if the operating voltage of the POE powered device is a specific operating voltage, the operating mode of the POE powered device is the fixed voltage power supply mode. In the fixed voltage power supply mode, if the target operating voltage input to the POE powered device is not the specific operating voltage, an abnormality occurs in the POE powered device.
The boost power supply mode refers to that, during power supply, the target operating voltage input by the POE power supply device to the POE powered device is gradually increased.
It should be noted that, if the operating voltage of the POE powered device is within a certain operating voltage range, the operating mode of the POE powered device may be a boost power supply mode or a fixed voltage power supply mode.
POE receives the pressure boost power supply mode of device, can be in the within range that POE received the operating voltage of device allows, through the voltage of crescent input POE received the device to make the electric current reduce correspondingly, thereby reduce the heat loss of circuit.
Correspondingly, according to the configuration voltage information, obtaining the target working voltage specifically comprises:
and if the power supply mode is judged and known to be the boosting power supply mode, judging whether the sum of the target working voltage of the current period and the preset voltage increment exceeds the upper limit of the working voltage. And if the voltage difference does not exceed the preset voltage increment, taking the sum of the target working voltage in the current period and the preset voltage increment as the working voltage in the next period.
If the POE power supply device judges that the power supply mode is the boost power supply mode, it can be stated that the POE powered device can normally work within a certain working voltage range interval.
The boosting process of any one cycle may include: and outputting the target working voltage of the current period and judging whether the next period continues to be boosted.
Specifically, the POE power supply device outputs the target operating voltage of the current period to the POE powered device.
The step of judging whether the next period is continuously pressurized comprises the following steps: the POE power supply device obtains the sum of the target working voltage of the current period and the preset voltage increment, and judges whether the sum of the target working voltage of the current period and the preset voltage increment exceeds the upper limit of the working voltage or not.
And if the working voltage does not exceed the upper limit of the working voltage, taking the sum of the target working voltage of the current period and the preset voltage increment as the target working voltage of the next period.
After the target operating voltage of the next cycle is obtained, the boosting process of the next cycle may be started.
And if the sum of the target working voltage in the current period and the preset voltage increment exceeds the upper limit of the working voltage, continuing to supply power by the target working voltage in the current period, and not increasing the voltage for power supply.
The duration of each period is a preset duration threshold.
It should be noted that, the POE power supply device may obtain a minimum value in the operating voltage range interval or an arbitrary value in the operating voltage range interval, as the target operating voltage of the first cycle.
It should be noted that specific values of the preset voltage increment and the preset time threshold may be determined according to actual situations, and embodiments of the present invention are not limited specifically.
In order to protect the POE powered device, the target operating voltage input by the POE power supply device to the POE powered device cannot exceed the upper limit of the operating voltage of the POE powered device. If the target operating voltage input to the POE powered device by the POE power supply device exceeds the upper limit of the operating voltage of the POE powered device, the POE powered device is abnormal or even damaged.
It should be noted that, the POE power supply device is specifically configured to, if it is determined that the power supply mode is the fixed voltage power supply mode, during power supply, keep the target operating voltage output by the POE power supply device to the POE powered device unchanged.
Specifically, if the operating voltage of the POE powered device is a specific operating voltage, the POE power supply device may obtain the specific operating voltage as a target operating voltage, output the target operating voltage to the POE powered device, and keep the target operating voltage unchanged during power supply.
If the operating voltage of the POE powered device is within an operating voltage range, the POE power supply device may obtain a minimum value within the voltage value range or an arbitrary value within the voltage value range, as a target operating voltage, and keep the target operating voltage unchanged during power supply.
According to the embodiment of the invention, the POE power receiving device is periodically boosted and powered in the boosting power supply mode, so that the current in the POE power receiving device can be reduced, and the heat loss of a line can be reduced.
Receiving real-time operating state information of a power receiving circuit in a POE power receiving device, which is sent by the POE power receiving device, based on the content of the above embodiments; and if the power supply abnormity is judged and obtained according to the real-time working state information of the power receiving circuit, responding according to the power supply abnormity.
The real-time operating state information of the power receiving circuit in the POE power receiving device may include, but is not limited to: at least one of a voltage fluctuation amplitude, a current fluctuation amplitude, and a power consumption fluctuation amplitude in the power receiving circuit.
After receiving the real-time working state information through the POE power supply device, whether power supply abnormality occurs to a power receiving circuit in the POE power receiving device at the current time can be judged according to the real-time working state information.
It should be noted that the power supply abnormality may include, but is not limited to: abnormal fluctuation of voltage, abnormal fluctuation of current, or abnormal fluctuation of power consumption, for example: the voltage or current is excessive.
And if the power supply abnormality of the power receiving circuit in the POE power receiving device at the current moment is judged and known by the POE power supply device, responding according to the power supply abnormality.
Specifically, if the power supply mode of the POE powered device is the fixed voltage power supply mode, the POE power supply device stops inputting the target operating voltage to the POE powered device.
If the power supply mode of the POE powered device is the boost power supply mode, the POE power supply device converts the initial voltage into the target working voltage of the previous period, and inputs the target working voltage of the previous period to the POE powered device.
It should be noted that, after the POE power supply device inputs the target operating voltage of the last period to the POE powered device, the POE power supply device determines, according to the real-time operating state information, that the power supply abnormality still occurs in the powered circuit in the POE powered device at the current time, and then the POE power supply device stops inputting the target operating voltage to the POE powered device.
If judge and learn that the power supply abnormality appears in the circuit that receives in the POE powered device at present moment, then can trigger the warning through POE power supply unit, the alarm mode can include: the alarm is given by sound, light or other alarm modes.
Through recording the real-time working state information of the power receiving circuit in the POE power receiving device and the related information of power supply abnormality, and reporting the real-time working state information and the related information of power supply abnormality, a data basis can be provided for operation and maintenance analysis of engineering personnel.
According to the embodiment of the invention, the POE device judges and learns that the power supply abnormality occurs to the power receiving circuit in the POE power receiving device at the current moment according to the received real-time working state information of the power receiving circuit, returns the target power supply voltage of the previous period or stops power supply according to the power supply abnormality, and reports the real-time working state information and the related information of the power supply abnormality, so that the power receiving circuit can be protected, the safety of the POE power supply can be improved, and a data basis can be provided for operation and maintenance analysis of engineering personnel.
Fig. 4 is a flowchart illustrating a POE power supply method according to an embodiment of the present invention. The POE power supply method according to the embodiment of the present invention is described below with reference to fig. 4. As shown in fig. 4, the method includes: step S401, sending configuration voltage information to the POE power supply device, so that the POE power supply device obtains a target working voltage according to the configuration voltage information, and inputs the target working voltage to the POE powered device. Wherein the configuration voltage information includes an operating voltage.
It should be noted that the main execution entity of the POE power supply method according to the embodiment of the present invention is a POE powered device.
Specifically, the working voltage refers to a voltage required by the POE powered device to normally work. The working voltage may be a specific working voltage, or may be a working voltage range interval, which indicates that the POE powered device can normally work at the specific working voltage, or within the working voltage range interval.
It should be noted that the upper limit of the operating voltage of the POE powered device refers to a maximum value within the operating voltage range of the POE powered device, and is a maximum voltage that the POE powered device can support.
Send configuration voltage information to POE power supply unit through POE powered device, POE power supply unit can acquire target operating voltage according to configuration voltage information to with target operating voltage input POE powered device.
Step S402, inputting the target operating voltage into a power receiving circuit in the POE power receiving device.
The powered circuit 204 is a circuit that receives power from the POE power device, and specifically is a circuit that implements a main function in the POE powered device.
The target working voltage can be input into a power receiving circuit in the POE power receiving device through the POE power receiving device.
According to the embodiment of the invention, the stored configuration voltage information is sent to the POE power supply device through the POE power receiving device, the POE power supply device inputs the target working voltage into the POE power receiving device after acquiring the target working voltage according to the configuration voltage information, and the POE power receiving device inputs the target working voltage into the power receiving circuit, so that the POE power supply device can meet the power supply requirements of different voltages of the POE power receiving device more simply and conveniently, the POE power supply device can be simplified, the power supply errors can be reduced, the POE power supply device can be more flexibly suitable for various application scenes, and the equipment input cost can be reduced.
Fig. 5 is a schematic structural diagram of a POE power supply system according to an embodiment of the present invention. The POE power supply system according to the embodiment of the present invention is described below with reference to fig. 5. As shown in fig. 5, the POE power supply system includes: POE power supply device 501 and several POE powered devices 502.
Specifically, the POE power supply device 501 may be the POE power supply device provided in any of the foregoing POE power supply device embodiments.
POE powered device 502 can be the POE powered device provided by any of the above POE powered device embodiments
The POE power supply system may include a POE power supply device 501 and a plurality of POE powered devices 502.
One POE power supply device 501 can supply power to several POE powered devices 502.
Specifically, a POE power supply unit 501 can supply power to the first voltage regulation module of a plurality of through the power module that POE power supply unit includes, and a plurality of POE powered device 502 is connected respectively to the first voltage regulation module of a plurality of, realizes that a POE power supply unit 501 can supply power for a plurality of POE powered device 502.
A POE power supply unit's first voltage regulation module that contains can also be connected with a plurality of POE powered device, realizes that a POE power supply unit 501 can be for the power supply of a plurality of POE powered device 502.
According to the embodiment of the invention, the POE power supply device is respectively connected with the POE power receiving devices to form the POE power supply system, so that the POE power supply device can meet the power supply requirements of the POE power receiving devices on different voltages more simply and conveniently, the POE power supply device can be simplified, power supply errors can be reduced, the POE power supply system is more flexibly suitable for various application scenes, and the input cost of equipment can be reduced.
The following describes a specific work flow of the POE power supply system in practical application by using an example. Fig. 6 is a schematic diagram of a work flow of a POE power supply system according to an embodiment of the present invention, where the POE power supply system includes a POE power supply device and a POE powered device. As shown in fig. 6, the workflow includes:
step S601, the power supply module outputs an initial voltage value and the first voltage adjusting module.
Step S602, the first voltage regulation module is powered on, and power is supplied to the first control module and the second voltage regulation module.
Step S603, the second voltage regulating module is powered on, and the second control module is powered on.
And step S604, the second control module is powered on, and configuration voltage information is sent to the first control module.
Step S605, the first control module is powered on and receives the configuration voltage information.
And step S606, the first control module judges whether the power supply mode is a boosting power supply mode according to the configuration voltage information.
If the determination result in the step S606 is negative, the step S609 is executed, and the first control module obtains the target working voltage.
If the determination result in the step S606 is yes, step S607 is executed, and the first control module obtains the sum of the current target operating voltage and the preset voltage increment.
Step S608, the first control module determines whether the sum of the current target operating voltage and the preset voltage increment exceeds an upper limit of the operating voltage.
If the determination result in the step S608 is negative, the sum of the current target operating voltage and the preset voltage increment is used as the target operating voltage of the next period, and the step S607 is executed again.
If the determination result in the step S608 is yes, the step S609 is executed, and the first control module obtains the target working voltage.
Step S610, the first voltage regulating module converts the initial voltage into a target working voltage, and inputs the target working voltage into the second voltage regulating module.
Step S611, the second voltage adjustment module is powered on, and the target operating voltage is input to the power receiving circuit, and power is supplied to the second control module.
Step S612, the second control module sends the real-time operating status information of the power receiving circuit to the first control module.
In step S613, the first control module determines whether a power supply abnormality occurs according to the real-time operating state information of the power receiving circuit.
If the determination result in the step S613 is negative, step S614 is executed, and the second voltage adjustment module supplies power with the current target working voltage.
If the determination result in the step S613 is yes, the step S615 is executed, and the first control module responds according to the power supply abnormality.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment may be implemented by software plus a necessary general hardware platform, and may also be implemented by hardware. Based on the understanding, the above technical solutions substantially or otherwise contributing to the prior art may be embodied in the form of a software product, which may be stored in a computer-readable storage medium, such as ROM/RAM, magnetic disk, optical disk, etc., and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method according to the various embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. A POE power supply device is characterized by comprising: the device comprises a power supply module, a first voltage regulating module, a first communication module and a first control module;
the power supply module is connected with the plurality of first voltage regulating modules and is used for inputting initial voltage into the first voltage regulating modules;
the first communication module is connected with the first control module and used for receiving configuration voltage information sent by the POE powered device through a connecting line; wherein the configuration voltage information includes a working voltage of the POE powered device;
the first control module is connected with the first voltage regulating module and used for acquiring a target working voltage according to the configuration voltage information;
the first voltage regulation module is configured to convert the initial voltage into the target working voltage, and input the target working voltage to the POE powered device;
the connecting line is used for connecting the POE power supply device and the POE powered device;
the configuration voltage information further includes a power supply mode of the POE powered device;
correspondingly, the first control module is specifically configured to determine whether the sum of the target working voltage of the current period and a preset voltage increment exceeds an upper limit of the working voltage if it is determined that the power supply mode is the boost power supply mode; and if the current working voltage does not exceed the preset voltage increment, taking the sum of the target working voltage of the current period and the preset voltage increment as the working voltage of the next period.
2. The POE power supply device according to claim 1, wherein the first control module is further configured to receive real-time operating status information of a powered circuit in the POE powered device, which is sent by the POE powered device; and if the power supply abnormity is judged and obtained according to the real-time working state information of the power receiving circuit, responding according to the power supply abnormity.
3. A POE powered device is characterized by comprising a second control module, a second voltage regulation module, a second communication module and a powered circuit;
the second control module is connected with the second voltage regulating module and used for storing configuration voltage information; wherein the configuration voltage information includes a working voltage of the POE powered device and a power supply mode of the POE powered device;
the second communication module is connected with the second control module and is used for sending the configuration voltage information to a POE (power over Ethernet) power supply device through a connecting line so that the POE power supply device can obtain a target working voltage according to the configuration voltage information and input the target working voltage into the second voltage regulation module;
the second voltage regulation module is used for inputting the target working voltage into the power receiving circuit;
the connecting line is used for connecting the POE powered device and the POE power supply device;
the POE power supply device obtains a target working voltage according to the configuration voltage information, and the POE power supply device comprises:
if the power supply mode is judged to be the boosting power supply mode, judging whether the sum of the target working voltage of the current period and a preset voltage increment exceeds the upper limit of the working voltage or not; and if the current working voltage does not exceed the preset voltage increment, taking the sum of the target working voltage of the current period and the preset voltage increment as the working voltage of the next period.
4. The POE powered device of claim 3, wherein the second control module is further configured to obtain real-time operating status information of the powered circuit;
the second communication module is further configured to send the real-time working state information of the power receiving circuit to the POE power supply device, so that the POE power supply device responds to the power supply abnormality according to the power supply abnormality if the POE power supply device determines to know the power supply abnormality according to the real-time working state information of the power receiving circuit.
5. A POE power supply method based on the POE power supply apparatus of claim 1, comprising:
receiving configuration voltage information sent by a POE powered device; wherein the configuration voltage information includes a working voltage of the POE powered device;
acquiring target working voltage according to the configuration voltage information;
converting an initial voltage into the target working voltage, and inputting the target working voltage into the POE powered device;
wherein the initial voltage is an output voltage of a power module in the POE power supply device.
6. The POE power supply method of claim 5, wherein the configuration voltage information further includes a power supply mode of the POE powered device;
correspondingly, the obtaining of the target working voltage according to the configuration voltage information specifically includes:
if the power supply mode is judged to be the boosting power supply mode, judging whether the sum of the target working voltage of the current period and a preset voltage increment exceeds the upper limit of the working voltage or not; and if the current working voltage does not exceed the preset voltage increment, taking the sum of the target working voltage of the current period and the preset voltage increment as the working voltage of the next period.
7. The POE power supply method according to claim 5 or 6, further comprising:
receiving real-time working state information of a power receiving circuit in a POE power receiving device, wherein the real-time working state information is sent by the POE power receiving device;
and if the power supply abnormity is judged and obtained according to the real-time working state information of the power receiving circuit, responding according to the power supply abnormity.
8. A POE power supply method for a POE powered device according to claim 3, the method comprising:
sending configuration voltage information to a POE power supply device, so that the POE power supply device obtains a target working voltage according to the configuration voltage information, and inputting the target working voltage into the POE powered device; wherein the configuration voltage information comprises a working voltage;
and inputting the target working voltage into a power receiving circuit in the POE power receiving device.
9. A POE power supply system, characterized in that includes: the POE power sourcing device of any one of claims 1 to 2 and a plurality of POE powered devices of claim 3 or 4.
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