CN105553895A - Powered device in ethernet, and signal attenuation compensation method and apparatus - Google Patents
Powered device in ethernet, and signal attenuation compensation method and apparatus Download PDFInfo
- Publication number
- CN105553895A CN105553895A CN201410607888.5A CN201410607888A CN105553895A CN 105553895 A CN105553895 A CN 105553895A CN 201410607888 A CN201410607888 A CN 201410607888A CN 105553895 A CN105553895 A CN 105553895A
- Authority
- CN
- China
- Prior art keywords
- signal
- compensation
- amplitude
- frequency component
- radio
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
The invention discloses a powered device in Ethernet, and a signal attenuation compensation method and apparatus. The powered device comprises a network transformer, a network switching unit, and a network processing unit. The network transformer is used for receiving a signal and electric energy that are sent by power sourcing equipment over Ethernet, separating the signal from the electric energy, and outputting the separated signal to the network switching unit. The network switching unit is used for carrying out compensation on a high-frequency component of the inputted signal according to a first preset numerical value, determining whether an error code exists in the compensated signal, if so, carrying out compensation on the high-frequency component of the inputted signal according to incremental preset numerical values, determining whether an error code exists in the compensated signal after compensation each time, and carrying out compensation until an upper limit value of the compensation is reached, and outputting the compensated signal determined by compensation at the last time to the network processing unit by other designated ports. The network processing unit is used for carrying out processing on the compensated signal. According to the technical scheme provided by the embodiment of the invention, attenuation generated during the signal transmission process can be compensated effectively and dynamically, thereby meeting the communication quality requirement.
Description
Technical field
The present invention relates to communication technical field, particularly relate to Ethernet power receiving equipment, signal attenuation compensation method and device.
Background technology
Power over Ethernet (POE, PoweroverEthernet) refer to when existing Ethernet wiring architecture does not make any changes, be IP-based terminal at Ethernet, such as, while the device transmission signals such as IP phone, WAP (wireless access point), web camera, the technology of direct current supply can also be provided by kind equipment for this reason.Power over Ethernet makes IP-based terminal no longer can need local AC power, obtains electric energy and just can normally work, make the installation and maintenance of these terminals more convenient and flexible from ethernet twisted pair.
In POE system, the equipment providing power supply is power supply unit (PSE, PowerSourcingEquipment), accepts and uses the equipment of power supply for power receiving equipment (PD, PoweredDevice).Usually, PSE by ethernet twisted pair by signal and delivery of electrical energy to PD time, first PD side needs to adopt network transformer to carry out power taking, signal is separated with electric energy, isolated electric energy normally can work for the modules in PD, isolated signal will be transferred to the network processing unit of PD and process accordingly, and, the signals reverse of collection also can be transferred to PSE side by network processing unit, for a lot of PD, due to the structural limitations of PD, make signal in the transmission path more complicated of PD inside, cause signal can produce signal attenuation in the process of transmission.
For the attenuation problem that signal in power receiving equipment produces in transmitting procedure, the existing mode addressed this problem is mainly increases a driver between network transformer and network processing unit, adopts the decay of driver to signal to compensate.Technical staff chooses the type of driver according to practical experience, due to driver signal attenuation is compensated time, the driver of one type correspondingly can only compensate a fixing value, when there is fluctuation in the pad value of signal, driver may not the decay of effective compensating signal, such as: driver is 1 to the fixed quantisation value that signal compensates, before enter drive, the quantized value of this signal is 5, so by driver to after signal compensation, the quantized value of signal exported is 6, quantized value be 6 signal just meet communicating requirement; Before enter drive, the quantized value of this signal is 3, and by driver to after signal compensation, the quantized value of the signal of output is 4, although driver compensates signal, but the signal after compensating still cannot meet communicating requirement, now, also again can not change the type of driver again.
Summary of the invention
The embodiment of the present invention provides Ethernet power receiving equipment, signal attenuation compensation method and device, in order to solve the attenuation problem that the signal that exists in prior art produces in transmitting procedure.
The embodiment of the present invention provides a kind of Ethernet power receiving equipment, comprising: network transformer, network exchange unit and network processing unit, wherein:
Described network transformer, for receiving signal and the electric energy of power over Ethernet device transmission; Described signal is separated with electric energy; Described signal after being separated is exported to described network exchange unit;
Described network exchange unit, for receiving the described signal that described network transformer sends; The input signal radio-frequency component of described signal is compensated according to the first default value; Determine whether the signal after compensating exists error code; If there is error code, the input signal radio-frequency component of described signal is compensated according to the default value increased progressively, and after each compensation, determine whether the signal after compensating still exists error code, compensates higher limit until compensate to; Signal after compensating the compensation determined for the last time is exported to network processing unit by other designated ports;
Described network processing unit, for receive described network exchange unit send described compensation after signal; Signal after described compensation is processed.
Adopt the above-mentioned Ethernet power receiving equipment that the embodiment of the present invention provides, owing to whether there is error code after the input signal radio-frequency component compensation by judging signal determine whether to continue to compensate to signal, achieve the dynamic compensation to the signal attenuation produced in signals transmission, thus the requirement of communication quality can be met.
Further, described network exchange unit, also for when compensating to compensation higher limit to the input signal radio-frequency component of described signal and still there is error code, after sending the compensation of carrying and compensating higher limit to described network processing unit still there is the message of error code in signal;
Described network processing unit, also for when receiving after after described network processing unit sends the compensation of carrying and compensating higher limit signal still exists the message of error code, reduces network rate.
Further, described network processing unit, also for when determining that the signal after compensating according to the first default value the input signal radio-frequency component of described signal does not exist error code, the input signal radio-frequency component of described signal is compensated according to the default value successively decreased, and after each compensation, determine whether the signal after compensating still does not exist error code, until there is error code; Signal after the compensation obtain the last time of working as when there is error code exports to network processing unit by other designated ports.
Further, described network processing unit, also for sending feedback signal to described network exchange unit, described feedback signal is carried the signal after to described compensation and is processed the business datum obtained;
Described network exchange unit, also for inputting the feedback signal that described network processing unit exports; The radio-frequency component obtained after determining that default output signal radio-frequency component is increased described default value, as the value of output signal radio-frequency component; The radio-frequency component of described feedback signal is compensated to the value of described output signal radio-frequency component value, obtain the feedback signal after radio-frequency component is compensated; Feedback signal after compensating is exported to described network transformer by output port;
Described network transformer, the described feedback signal also for being exported by described network transformer sends to client terminal.
Further, described network exchange unit, also for when determining that the input signal amplitude of described signal is less than default input signal amplitude, use the input signal amplitude of the difference between described input signal amplitude and default input signal amplitude to described signal to compensate, obtain the signal after to Amplitude Compensation; Signal after compensating is exported to network processing unit by other designated ports.
Like this, compensate by using the input signal amplitude of difference to this signal between input signal amplitude and default input signal amplitude, the dynamic compensation to the signal attenuation produced in signals transmission can be realized, thus the requirement of communication quality can be met.
Further, described network exchange unit, also for after the feedback signal of the described network processing unit output of input, the amplitude obtained after determining that default amplitude output signal is increased described difference, as amplitude output signal; By the amplitude compensation of described feedback signal to described output signal amplitude, the feedback signal after being compensated; Feedback signal after compensating is sent to described network transformer by output port;
Further, described network exchange unit, also for after the described signal of the described network transformer output of input, determines the input signal amplitude of described signal; Determine when described input signal amplitude is less than default input signal amplitude, the difference between described input signal amplitude and default input signal amplitude.
Further, the said equipment, also comprises: processor, wherein:
Described processor, for configuring the first outside port of the main channel for transmitting described signal of described network exchange unit and multiple second outside ports for the alternate channel that transmits described signal; Detect the connection status of described first outside port; When the connection status of described first outside port is abnormal, close described main channel, and to open in described multiple second outside port arbitrary port for transmitting described signal.
Like this, Multi net voting port can be adopted to realize Signal transmissions, improve the robustness of networking.
Further, described network exchange unit, also for after receiving described signal, according to the target MAC (Media Access Control) address carried in described signal, in self MAC Address of storage and the corresponding relation of port, determine the port that described target MAC (Media Access Control) address is corresponding, as the output port of the described signal of transmission.
The embodiment of the present invention additionally provides a kind of signal attenuation compensation method, comprising:
The signal receiving power over Ethernet device transmission is separated with electric energy by Ethernet power receiving equipment, obtains described signal;
The input signal radio-frequency component of described signal is compensated according to the first default value;
Determine whether the signal after compensating exists error code;
When determining that the signal after described compensation exists error code, the input signal radio-frequency component of described signal is compensated according to the default value increased progressively, and after each compensation, determine whether the signal after compensating still exists error code, compensates higher limit until compensate to.
Adopt the said method that the embodiment of the present invention provides, owing to whether there is error code after the input signal radio-frequency component compensation by judging signal determine whether to continue to compensate to signal, achieve the dynamic compensation to the signal attenuation produced in signals transmission, thus the requirement of communication quality can be met.
Further, described method, also comprises:
When determining that the signal after compensating according to the first default value the input signal radio-frequency component of described signal does not exist error code, the input signal radio-frequency component of described signal is compensated according to the default value successively decreased, and after each compensation, determine whether the signal after compensating still does not exist error code, until there is error code.
Further, described method, also comprises:
After processing the signal after described compensation, obtain feedback signal, described feedback signal carries the business datum corresponding with the signal after this compensation;
The radio-frequency component obtained after determining that default output signal radio-frequency component is increased described default value, as the value of output signal radio-frequency component;
The radio-frequency component of described feedback signal is compensated to the value of described output signal radio-frequency component value, obtain the feedback signal after radio-frequency component is compensated, and the feedback signal after described compensation is sent to client terminal by output port.
Further, said method, also comprises:
The signal receiving power over Ethernet device transmission is being separated with electric energy, after obtaining described signal, determine when the input signal amplitude of described signal is less than default input signal amplitude, the difference between the input signal amplitude of described signal and default input signal amplitude;
The input signal amplitude of described difference to described signal is used to compensate.
Like this, compensate by using the input signal amplitude of difference to this signal between input signal amplitude and default input signal amplitude, the dynamic compensation to the signal attenuation produced in signals transmission can be realized, thus the requirement of communication quality can be met.
Further, said method, also comprises:
After processing the signal after described compensation, after obtaining feedback signal, the amplitude obtained after determining that default amplitude output signal is increased described difference, as amplitude output signal;
Described feedback signal is compensated to described output signal amplitude, obtains the feedback signal after to Amplitude Compensation, and the feedback signal after compensating is sent to client terminal by output port.
Further, before the signal receiving power over Ethernet device transmission and electric energy, also comprise:
Be configured for the first outside port of the main channel of signal transmission and multiple second outside ports for the alternate channel that transmits described signal;
Whether the connection status detecting described first outside port is abnormal;
When the connection status of described first outside port is abnormal, close described main channel, and to open in described multiple second outside port arbitrary port for transmitting described signal.
Like this, Multi net voting port can be adopted to realize Signal transmissions, improve the robustness of networking.
The embodiment of the present invention additionally provides a kind of signal attenuation compensation arrangement, comprising:
Separative element, for being separated with electric energy by the signal receiving power over Ethernet device transmission, obtains described signal;
First compensating unit, for compensating according to the first default value the input signal radio-frequency component of described signal;
First determining unit, for determining whether the signal after compensating exists error code;
Second compensating unit, for when determining that the signal after described compensation exists error code, the input signal radio-frequency component of described signal is compensated according to the default value increased progressively, and after each compensation, determines whether the signal after compensating still exists error code, compensates higher limit until compensate to.
Adopt the said apparatus that the embodiment of the present invention provides, owing to whether there is error code after the input signal radio-frequency component compensation by judging signal determine whether to continue to compensate to signal, achieve the dynamic compensation to the signal attenuation produced in signals transmission, thus the requirement of communication quality can be met.
Further, said apparatus, also comprises:
3rd compensating unit, for when determining that the signal after compensating according to the first default value the input signal radio-frequency component of described signal does not exist error code, the input signal radio-frequency component of described signal is compensated according to the default value successively decreased, and after each compensation, determine whether the signal after compensating still does not exist error code, until there is error code.
Further, said apparatus, also comprises:
Processing unit, after processing the signal after described compensation, obtains feedback signal, and described feedback signal carries the business datum corresponding with the signal after this compensation;
Second determining unit, for the radio-frequency component obtained after determining that default output signal radio-frequency component is increased described default value, as the value of output signal radio-frequency component;
4th compensating unit, for the radio-frequency component of described feedback signal being compensated to the value of described output signal radio-frequency component value, obtaining the feedback signal after compensating radio-frequency component, and the feedback signal after described compensation is sent to client terminal by output port.
Further, said apparatus, also comprises:
3rd determining unit, for the signal receiving power over Ethernet device transmission is being separated with electric energy, after obtaining described signal, determine when the input signal amplitude of described signal is less than default input signal amplitude, the difference between the input signal amplitude of described signal and default input signal amplitude;
5th compensating unit, compensates for using the input signal amplitude of described difference to described signal.
Like this, compensate by using the input signal amplitude of difference to this signal between input signal amplitude and default input signal amplitude, the dynamic compensation to the signal attenuation produced in signals transmission can be realized, thus the requirement of communication quality can be met.
Further, said apparatus, also comprises:
4th determining unit, for after processing the signal after described compensation, after obtaining feedback signal, the amplitude obtained after determining that default amplitude output signal is increased described difference, as amplitude output signal;
6th compensating unit, for described feedback signal is compensated to described output signal amplitude, obtains the feedback signal after to Amplitude Compensation, and the feedback signal after compensating is sent to client terminal by output port.
Further, said apparatus, also comprises:
Dispensing unit, for before receiving the signal and electric energy that power over Ethernet device sends, is configured for the first outside port of the main channel of signal transmission and multiple second outside ports for the alternate channel that transmits described signal;
Detecting unit, whether abnormal for the connection status detecting described first outside port;
Main channel closing unit, for when the connection status of described first outside port is abnormal, closes described main channel, and to open in described multiple second outside port arbitrary port for transmitting described signal.
Like this, Multi net voting port can be adopted to realize Signal transmissions, improve the robustness of networking.
The further feature of the application and advantage will be set forth in the following description, and, partly become apparent from specification, or understand by implementing the application.The object of the application and other advantages realize by structure specifically noted in write specification, claims and accompanying drawing and obtain.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for specification, is used from explanation the present invention, is not construed as limiting the invention with the embodiment of the present invention one.In the accompanying drawings:
The structural representation of the power over Ethernet device that Fig. 1 provides for the embodiment of the present invention;
The flow chart of the signal attenuation compensation method that Fig. 2 provides for the embodiment of the present invention 1;
The flow chart of the signal attenuation compensation method that Fig. 3 provides for the embodiment of the present invention 2;
The structural representation of the signal attenuation compensation arrangement that Fig. 4 provides for the embodiment of the present invention 3.
Embodiment
The implementation of effective dynamic compensation is carried out in order to provide the decay produced in transmitting procedure signal, embodiments provide Ethernet power receiving equipment, signal attenuation compensation method and device, below in conjunction with Figure of description, the preferred embodiments of the present invention are described, be to be understood that, preferred embodiment described herein, only for instruction and explanation of the present invention, is not intended to limit the present invention.And when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
The embodiment of the present invention provides a kind of Ethernet power receiving equipment, can be applied in safety defense monitoring system, as shown in Figure 1, comprising: network transformer 101, network exchange unit 102 and network processing unit 103, wherein:
Described network transformer 101, for receiving signal and the electric energy of power over Ethernet device transmission; Described signal is separated with electric energy; Described signal after being separated is exported to described network exchange unit;
Described network exchange unit 102, for inputting the described signal that described network transformer sends; The input signal radio-frequency component of described signal is compensated according to the first default value; Determine whether the signal after compensating exists error code; If there is error code, the input signal radio-frequency component of described signal is compensated according to the default value increased progressively, and after each compensation, determine whether the signal after compensating still exists error code, compensates higher limit until compensate to; Signal after described compensation is sent to network processing unit by other designated ports;
Described network processing unit 103, for receive described network exchange unit send described compensation after signal; Signal after described compensation is processed.
In the above-mentioned Ethernet power receiving equipment that the embodiment of the present invention provides, network transformer is after being separated signal with electric energy, and isolated electric energy changes into Ethernet power receiving equipment required voltage value by electric pressure converter.This Ethernet power receiving equipment can be IP-based terminal, such as: the equipment such as IP phone, WAP (wireless access point), web camera.
Further, described network processing unit 103, also for when compensating to compensation higher limit to the input signal radio-frequency component of described signal and still there is error code, after sending the compensation of carrying and compensating higher limit to described network processing unit still there is the message of error code in signal;
Described network processing unit 103, also for when receiving after after described network processing unit sends the compensation of carrying and compensating higher limit signal still exists the message of error code, reduces network rate.
Further, described network processing unit 103, also for when determining that the signal after compensating according to the first default value the input signal radio-frequency component of described signal does not exist error code, the input signal radio-frequency component of described signal is compensated according to the default value successively decreased, and after each compensation, determine whether the signal after compensating still does not exist error code, until there is error code; Signal after the compensation obtain the last time of working as when there is error code exports to network processing unit by other designated ports.
Further, described network processing unit 103, also for sending feedback signal to described network exchange unit, described feedback signal is carried the signal after to described compensation and is processed the business datum obtained;
Described network exchange unit 102, also for inputting the feedback signal that described network processing unit exports; The radio-frequency component obtained after determining that default output signal radio-frequency component is increased described default value, as the value of output signal radio-frequency component; The radio-frequency component of described feedback signal is compensated to the value of described output signal radio-frequency component value, obtain the feedback signal after radio-frequency component is compensated; Feedback signal after compensating is exported to described network transformer by output port;
Described network transformer 101, the described feedback signal also for being exported by described network transformer sends to client terminal.
Further, above-mentioned Ethernet power receiving equipment, also comprises: processor 104, wherein:
Described processor 104, for configuring the first outside port of the main channel for transmitting described signal of described network exchange unit and multiple second outside ports for the alternate channel that transmits described signal; Detect the connection status of described first outside port; When the connection status of described first outside port is abnormal, close described main channel, and to open in described multiple second outside port arbitrary port for transmitting described signal.
Due to multiple outside port can be used, make ethernet device achieve Multi net voting Port Management, adopt Multi net voting port transmission signal.
In the embodiment of the present invention, this processor and network exchange unit are connected by serial management interface (SMI, SerialManagementInterface), and SMI interface has two data lines, and interface is simple, and data format is general.This processor by the control information of MAC layer in the register of this SMI interface accessing network exchange unit and the state information of physical layer, can realize the management to network exchange unit and control.This processor can be microprocessor, also can be central processing unit.
Further, described network exchange unit 102, also for after receiving described signal, according to the target MAC (Media Access Control) address carried in described signal, in self MAC Address of storage and the corresponding relation of port, determine the port that described target MAC (Media Access Control) address is corresponding, as the output port of the described signal of transmission.
The Ethernet power receiving equipment provided by the above embodiment of the present invention, owing to whether there is error code after the input signal radio-frequency component compensation by judging signal determine whether to continue to compensate to signal, achieve the dynamic compensation to the signal attenuation produced in signals transmission, thus the requirement of communication quality can be met.Further, adopt Multi net voting port to realize Signal transmissions, improve the robustness of networking.
Embodiment 1:
Based on same inventive concept, according to the power over Ethernet device that the above embodiment of the present invention provides, correspondingly, the embodiment of the present invention 1 additionally provides a kind of signal attenuation compensation method, as shown in Figure 2, specifically comprises following treatment step:
The signal receiving power over Ethernet device transmission is separated with electric energy by step 201, Ethernet power receiving equipment, obtains this signal.
Step 202, the input signal radio-frequency component of this signal to be compensated according to the first default value.
Step 203, determine compensate after signal whether there is error code.
Step 204, when determining that the signal after this compensation exists error code, the input signal radio-frequency component of signal is compensated according to the default value increased progressively, and after each compensation, determine whether the signal after compensating still exists error code, compensates higher limit until compensate to.
By the above embodiment of the present invention supplying method, owing to whether there is error code after the input signal radio-frequency component compensation by judging signal determine whether to continue to compensate to signal, achieve the dynamic compensation to the signal attenuation produced in signals transmission, thus the requirement of communication quality can be met.
Below in conjunction with the modules of the Ethernet power receiving equipment that the embodiment of the present invention provides, with specific embodiment, method provided by the invention and device are described in detail.
Embodiment 2:
The flow chart of a kind of signal attenuation compensation method that Fig. 3 provides for the embodiment of the present invention 2, in conjunction with the modules of the Ethernet power receiving equipment that the above embodiment of the present invention provides, specifically comprises following treatment step:
Multiple second outside ports of the first outside port of the main channel for signal transmission of step 301, processor configuration network crosspoint and the alternate channel for signal transmission.
Processor is connected with network exchange unit by SMI interface, realizes the control and management to this network exchange unit.
Network exchange unit can provide multiple network port, one of them network port of network exchange unit can be configured to the first outside port of the main channel for signal transmission by processor, other multiple network ports are configured to the second outside port of the alternate channel for signal transmission, when the main channel of user's signal transmission is damaged or fault cannot normally connect, alternate channel signal transmission can be used.
Whether the connection status that step 302, this processor detect this first outside port is abnormal, if so, enters step 303, if not, returns step 302.
In this step, this processor can detect the bit bit position of the connection status register of this first outside port of this network exchange unit according to predetermined period, when bit position is 1, represent and connect normally, enter step 303, when bit position is 0, represents and connect extremely, main channel disconnects, and enters step 304.Wherein, this predetermined period can be arranged flexibly according to practical experience and needs.
Step 303, when the connection status of this first outside port is abnormal, this processor cuts out main channel, and opens alternate channel for transmitting this signal.
Further, after alternate channel opens signal transmission, when this processor detects that the connection status of this first outside port becomes normal, can main channel be reopened, close alternate channel.
Step 304, network transformer receive signal and the electric energy of power over Ethernet device transmission, and are separated with electric energy by this signal, obtain this signal.
This signal is exported to network exchange unit by step 305, this network transformer.
Step 306, network exchange unit input this signal, and this network exchange unit determines input signal amplitude and the radio-frequency component of this signal.
In this step, this network exchange unit by the register-bit of the expression input signal amplitude of this network exchange unit of inquiry, can determine the input signal amplitude of this signal.
Step 307, this network exchange unit are upon receipt of the signal, network exchange unit is according to the target MAC (Media Access Control) address carried in this signal, in self MAC Address of storage and the corresponding relation of port, determine the port that this target MAC (Media Access Control) address is corresponding, as the output port of this signal of transmission.
Wherein, this output port is the port that Ethernet power receiving equipment uses when client terminal sends signal.
Strict sequencing is not had between above-mentioned steps 306 and step 307.
In the embodiment of the present invention, when compensating the signal after separation, can compensate the radio-frequency component of this signal and input signal amplitude simultaneously, also individually can compensate radio-frequency component and input signal amplitude.To the concrete process following steps 308-step 311 that the radio-frequency component of this signal compensates, to the concrete process following steps 312-step 314 that the input signal amplitude of this signal compensates.
Step 308, the network exchange unit input signal radio-frequency component to this signal after separation compensates according to the first default value.
Wherein, this first default value can be arranged flexibly according to actual conditions, and such as: be A to the maximum compensation ability of signal, this first default value can be set to A/2.
Step 309, network exchange unit determine whether the signal after compensating exists error code, if so, enters step 310, if not, enters step 311.
Step 310, the network exchange unit input signal radio-frequency component to signal compensates according to the default value increased progressively, and after each compensation, determine whether the signal after compensating still exists error code, compensates higher limit until compensate to.
Concrete, after A/2 is compensated to the input signal radio-frequency component of signal, if still there is error code in the signal after compensating, 3A/4 can be compensated to the input signal radio-frequency component of signal, determine whether the signal after compensation 3A/4 still exists error code, if still there is error code, then 7A/8 is compensated to the input signal radio-frequency component of signal, higher limit is compensated, till namely compensating to maximum compensation ability A until compensate to.
Further, if compensate to compensation higher limit still there is error code, network exchange unit informing network processing unit reduces network rate.
Step 311, the network exchange unit input signal radio-frequency component to signal compensates according to the default value successively decreased, and after each compensation, determine whether the signal after compensating still does not exist error code, until there is error code.
Concrete, after A/2 is compensated to the input signal radio-frequency component of signal, if there is not error code in the signal after compensating, to the input signal radio-frequency component of signal, compensation can be fallen, namely 1A/4 can be compensated to the input signal radio-frequency component of signal, determine whether the signal after compensation 1A/4 exists error code, occurs error code until fall to compensate to.
Step 312, this network exchange unit determine whether the input signal amplitude of this signal is less than default input signal amplitude, if not, enters step 313, if so, enters step 314.
In this step, this default input signal amplitude can be arranged flexibly according to practical experience and needs.
Step 313, when determining that this input signal amplitude is not less than default input signal amplitude, this network exchange unit does not do compensation deals to this signal.
Step 314, when determining that this input signal amplitude is less than default input signal amplitude, this network exchange unit uses the input signal amplitude of difference to this signal between input signal amplitude and default input signal amplitude to compensate, the signal after being compensated.
Signal after this compensation is exported to network processing unit by other designated ports by step 315, this network exchange unit.
Wherein, these other designated ports are the port that between network exchange unit and network processing unit, signal transmission uses.
In this step, the signal after the compensation of network processing unit is sent to by other designated ports, can be to be separated after signal input signal radio-frequency component compensate after obtain, also can be obtain after compensating the input signal amplitude of the signal after being separated, can also be obtain after the input signal radio-frequency component of signal after being separated and input signal amplitude being compensated simultaneously.
After step 316, network processing unit input the signal after this compensation, the signal after this compensation is processed.
Further, after the signal after this compensation is processed, obtain the business datum corresponding with the signal after this compensation, this business datum can be sent to client terminal again, such as, this business datum can be video data, the feedback signal of carrying this video data is sent to terminal, checks for user.After this compensating signal is processed, feedback signal is sent to the concrete processing procedure following steps 317-step 319 of terminal.
This feedback signal is exported to network exchange unit by step 317, this network processing unit.
Wherein, this feedback signal is carried and is processed to compensating signal the business datum obtained.
After step 318, network exchange unit input this feedback signal, this network exchange unit compensates this feedback signal, and the feedback signal transmission after compensating is sent to client terminal by output port.
In this step, feedback signal is compensated and can be compensated the input signal radio-frequency component of this feedback signal, also can compensate the input signal amplitude of this feedback signal, can also compensate the input signal radio-frequency component of this feedback signal and input signal amplitude simultaneously.
Concrete, it is as follows that the input signal radio-frequency component of network exchange unit to this feedback signal compensates concrete mode: the radio-frequency component obtained after determining that default output signal radio-frequency component is increased default value, as the value of output signal radio-frequency component, wherein this default value is when compensating according to the default value increased progressively the input signal radio-frequency component of signal, until the value compensated input signal radio-frequency component when the signal after compensating does not exist error code, or when compensating according to the default value successively decreased the input signal radio-frequency component of signal, until the value that last time when there is error code compensates input signal radio-frequency component, the radio-frequency component of feedback signal is compensated to the value of output signal radio-frequency component value, obtain the feedback signal after radio-frequency component is compensated.
Concrete, it is as follows that the input signal amplitude of network exchange unit to this feedback signal compensates concrete mode: determine the range value obtained after default amplitude output signal increases the difference of input signal amplitude and default input signal amplitude, as amplitude output signal.Wherein, this default amplitude output signal can be arranged flexibly according to practical experience and needs.This network exchange unit by the register-bit of the expression signal amplitude of this network exchange unit of inquiry, can determine the amplitude of this feedback signal.This feedback signal is compensated to this output signal amplitude, the feedback signal after being compensated.
Be illustrated with the input signal amplitude compensation of network exchange unit to this feedback signal: suppose that input signal amplitude is for 0.8, default input signal amplitude is 1, default amplitude output signal is 1, so 0.2 is compensated to input signal, the amplitude of obtaining is the signal after the compensation of 1, signal after compensating is processed, generate feedback signal, this feedback signal is carried the signal after to compensation and is processed the business datum obtained, default amplitude output signal 1 is increased by 0.2 as amplitude output signal, by the Amplitude Compensation of feedback signal to 1.2, the feedback signal of amplitude 1.2 is sent to client terminal by output port.
By the method that the above embodiment of the present invention provides, owing to whether there is error code after the input signal radio-frequency component compensation by judging signal determine whether to continue to compensate to signal, and use the input signal amplitude of difference to this signal between input signal amplitude and default input signal amplitude to compensate, the dynamic compensation to the signal attenuation produced in signals transmission can be realized, thus the requirement of communication quality can be met.
Embodiment 3:
Based on same inventive concept, according to the signal attenuation compensation method that the above embodiment of the present invention provides, correspondingly, the embodiment of the present invention 3 additionally provides a kind of signal attenuation compensation arrangement, and its structural representation as shown in Figure 4, specifically comprises:
Separative element 401, for being separated with electric energy by the signal receiving power over Ethernet device transmission, obtains described signal;
First compensating unit 402, for compensating according to the first default value the input signal radio-frequency component of described signal;
First determining unit 403, for determining whether the signal after compensating exists error code;
Second compensating unit 404, for when determining that the signal after described compensation exists error code, the input signal radio-frequency component of described signal is compensated according to the default value increased progressively, and after each compensation, determines whether the signal after compensating still exists error code, compensates higher limit until compensate to.
Further, said apparatus, also comprises:
3rd compensating unit 405, for when determining that the signal after compensating according to the first default value the input signal radio-frequency component of described signal does not exist error code, the input signal radio-frequency component of described signal is compensated according to the default value successively decreased, and after each compensation, determine whether the signal after compensating still does not exist error code, until there is error code.
Further, said apparatus, also comprises:
Processing unit 406, after processing the signal after described compensation, obtains feedback signal, and described feedback signal carries the business datum corresponding with the signal after this compensation;
Second determining unit 407, for the radio-frequency component obtained after determining that default output signal radio-frequency component is increased described default value, as the value of output signal radio-frequency component;
4th compensating unit 408, for the radio-frequency component of described feedback signal being compensated to the value of described output signal radio-frequency component value, obtaining the feedback signal after compensating radio-frequency component, and the feedback signal after described compensation is sent to client terminal by output port.
Further, said apparatus, also comprises:
3rd determining unit 409, for the signal receiving power over Ethernet device transmission is being separated with electric energy, after obtaining described signal, determine when the input signal amplitude of described signal is less than default input signal amplitude, the difference between the input signal amplitude of described signal and default input signal amplitude;
5th compensating unit 410, compensates for using the input signal amplitude of described difference to described signal.
Further, said apparatus, also comprises:
4th determining unit 411, for after processing the signal after described compensation, after obtaining feedback signal, the amplitude obtained after determining that default amplitude output signal is increased described difference, as amplitude output signal;
6th compensating unit 412, for described feedback signal is compensated to described output signal amplitude, obtains the feedback signal after to Amplitude Compensation, and the feedback signal after compensating is sent to client terminal by output port.
Further, said apparatus, also comprises:
Dispensing unit 413, for before receiving the signal and electric energy that power over Ethernet device sends, is configured for the first outside port of the main channel of signal transmission and multiple second outside ports for the alternate channel that transmits described signal;
Detecting unit 414, whether abnormal for the connection status detecting described first outside port;
Main channel closing unit 415, for when the connection status of described first outside port is abnormal, closes described main channel, and to open in described multiple second outside port arbitrary port for transmitting described signal.
The function of above-mentioned each unit may correspond to the respective handling step in flow process shown in Fig. 2 or Fig. 3, does not repeat them here.
In sum, the scheme that the embodiment of the present invention provides, comprising: network transformer, network exchange unit and network processing unit, wherein: network transformer, for receiving signal and the electric energy of power over Ethernet device transmission; Signal is separated with electric energy; This signal after being separated is exported to network exchange unit; Network exchange unit, for inputting this signal that this network transformer sends; The input signal radio-frequency component of this signal is compensated according to the first default value; Determine whether the signal after compensating exists error code; If there is error code, the input signal radio-frequency component of this signal is compensated according to the default value increased progressively, and after each compensation, determine whether the signal after compensating still exists error code, compensates higher limit until compensate to; Signal after compensating the compensation determined for the last time is exported to network processing unit by other designated ports; Network processing unit, for receive network exchange unit export compensation after signal; Signal after compensating is processed.Adopt the scheme that the embodiment of the present invention provides, effective dynamic compensation is carried out in the decay that can produce in transmitting procedure signal, thus can meet the requirement of communication quality.
The signal attenuation compensation arrangement that the embodiment of the application provides realizes by computer program.Those skilled in the art should be understood that; above-mentioned Module Division mode is only the one in numerous Module Division mode; if be divided into other modules or do not divide module, as long as signal attenuation compensation arrangement has above-mentioned functions, all should within the protection range of the application.
The application describes with reference to according to the flow chart of the method for the embodiment of the present application, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (21)
1. an Ethernet power receiving equipment, is characterized in that, comprising: network transformer, network exchange unit and network processing unit, wherein:
Described network transformer, for receiving signal and the electric energy of power over Ethernet device transmission; Described signal is separated with electric energy; Described signal after being separated is exported to described network exchange unit;
Described network exchange unit, for inputting the described signal that described network transformer exports; The input signal radio-frequency component of described signal is compensated according to the first default value; Determine whether the signal after compensating exists error code; If there is error code, the input signal radio-frequency component of described signal is compensated according to the default value increased progressively, and after each compensation, determine whether the signal after compensating still exists error code, compensates higher limit until compensate to; Signal after compensating the compensation determined for the last time is exported to network processing unit by other designated ports;
Described network processing unit, for receive described network exchange unit export described compensation after signal; Signal after described compensation is processed.
2. Ethernet power receiving equipment as claimed in claim 1, it is characterized in that, described network exchange unit, also for when compensating to compensation higher limit to the input signal radio-frequency component of described signal and still there is error code, after sending the compensation of carrying and compensating higher limit to described network processing unit still there is the message of error code in signal;
Described network processing unit, also for when receiving after after described network processing unit sends the compensation of carrying and compensating higher limit signal still exists the message of error code, reduces network rate.
3. Ethernet power receiving equipment as claimed in claim 1, it is characterized in that, described network processing unit, also for when determining that the signal after compensating according to the first default value the input signal radio-frequency component of described signal does not exist error code, the input signal radio-frequency component of described signal is compensated according to the default value successively decreased, and after each compensation, determine whether the signal after compensating still does not exist error code, until there is error code; Signal after the compensation obtain the last time of working as when there is error code exports to network processing unit by other designated ports.
4. Ethernet power receiving equipment as claimed in claim 1, is characterized in that, described network processing unit, and also for described network exchange unit output feedback signal, described feedback signal is carried the signal after to described compensation and processed the business datum obtained;
Described network exchange unit, also for inputting the feedback signal that described network processing unit exports; The radio-frequency component obtained after determining that default output signal radio-frequency component is increased described default value, as the value of output signal radio-frequency component; The radio-frequency component of described feedback signal is compensated to the value of described output signal radio-frequency component value, obtain the feedback signal after radio-frequency component is compensated; Feedback signal after compensating is exported to described network transformer by output port;
Described network transformer, the described feedback signal also for being exported by described network transformer sends to client terminal.
5. Ethernet power receiving equipment as claimed in claim 1, it is characterized in that, described network exchange unit, also for when determining that the input signal amplitude of described signal is less than default input signal amplitude, use the input signal amplitude of the difference between described input signal amplitude and default input signal amplitude to described signal to compensate, obtain the signal after to Amplitude Compensation; Signal after compensating is exported to network processing unit by other designated ports.
6. Ethernet power receiving equipment as claimed in claim 5, it is characterized in that, described network exchange unit, also for after the feedback signal of the described network processing unit output of input, the amplitude obtained after determining that default amplitude output signal is increased described difference, as amplitude output signal; By the amplitude compensation of described feedback signal to described output signal amplitude, obtain the feedback signal after to Amplitude Compensation; Feedback signal after compensating is exported to described network transformer by output port.
7. Ethernet power receiving equipment as claimed in claim 1, is characterized in that, described network exchange unit, also for after the described signal of the described network transformer output of input, determines the input signal amplitude of described signal; Determine when described input signal amplitude is less than default input signal amplitude, the difference between described input signal amplitude and default input signal amplitude.
8. Ethernet power receiving equipment as claimed in claim 1, is characterized in that, also comprise: processor, wherein:
Described processor, for configuring the first outside port of the main channel for transmitting described signal of described network exchange unit and multiple second outside ports for the alternate channel that transmits described signal; Detect the connection status of described first outside port; When the connection status of described first outside port is abnormal, close described main channel, and to open in described multiple second outside port arbitrary port for transmitting described signal.
9. Ethernet power receiving equipment as claimed in claim 1, it is characterized in that, described network exchange unit, also for after receiving described signal, according to the target MAC (Media Access Control) address carried in described signal, in self MAC Address of storage and the corresponding relation of port, determine the port that described target MAC (Media Access Control) address is corresponding, as the output port of the described signal of transmission.
10. a signal attenuation compensation method, is characterized in that, comprising:
The signal receiving power over Ethernet device transmission is separated with electric energy by Ethernet power receiving equipment, obtains described signal;
The input signal radio-frequency component of described signal is compensated according to the first default value;
Determine whether the signal after compensating exists error code;
When determining that the signal after described compensation exists error code, the input signal radio-frequency component of described signal is compensated according to the default value increased progressively, and after each compensation, determine whether the signal after compensating still exists error code, compensates higher limit until compensate to.
11. methods as claimed in claim 10, is characterized in that, also comprise:
When determining that the signal after compensating according to the first default value the input signal radio-frequency component of described signal does not exist error code, the input signal radio-frequency component of described signal is compensated according to the default value successively decreased, and after each compensation, determine whether the signal after compensating still does not exist error code, until there is error code.
12. methods as described in claim 10 or 11, is characterized in that, also comprise:
After processing the signal after described compensation, obtain feedback signal, described feedback signal carries the business datum corresponding with the signal after this compensation;
The radio-frequency component obtained after determining that default output signal radio-frequency component is increased described default value, as the value of output signal radio-frequency component;
The radio-frequency component of described feedback signal is compensated to the value of described output signal radio-frequency component value, obtain the feedback signal after radio-frequency component is compensated, and the feedback signal after described compensation is sent to client terminal by output port.
13. methods as claimed in claim 10, is characterized in that, be separated by the signal receiving power over Ethernet device transmission, after obtaining described signal, also comprise with electric energy:
Determine when the input signal amplitude of described signal is less than default input signal amplitude, the difference between the input signal amplitude of described signal and default input signal amplitude;
The input signal amplitude of described difference to described signal is used to compensate.
14. methods as claimed in claim 13, is characterized in that, after processing the signal after described compensation, after obtaining feedback signal, also comprise:
The amplitude obtained after determining that default amplitude output signal is increased described difference, as amplitude output signal;
Described feedback signal is compensated to described output signal amplitude, obtains the feedback signal after to Amplitude Compensation, and the feedback signal after compensating is sent to client terminal by output port.
15. methods as claimed in claim 10, is characterized in that, before the signal receiving power over Ethernet device transmission and electric energy, also comprise:
Be configured for the first outside port of the main channel of signal transmission and multiple second outside ports for the alternate channel that transmits described signal;
Whether the connection status detecting described first outside port is abnormal;
When the connection status of described first outside port is abnormal, close described main channel, and to open in described multiple second outside port arbitrary port for transmitting described signal.
16. 1 kinds of signal attenuation compensation arrangements, is characterized in that, comprising:
Separative element, for being separated with electric energy by the signal receiving power over Ethernet device transmission, obtains described signal;
First compensating unit, for compensating according to the first default value the input signal radio-frequency component of described signal;
First determining unit, for determining whether the signal after compensating exists error code;
Second compensating unit, for when determining that the signal after described compensation exists error code, the input signal radio-frequency component of described signal is compensated according to the default value increased progressively, and after each compensation, determines whether the signal after compensating still exists error code, compensates higher limit until compensate to.
17. devices as claimed in claim 16, is characterized in that, also comprise:
3rd compensating unit, for when determining that the signal after compensating according to the first default value the input signal radio-frequency component of described signal does not exist error code, the input signal radio-frequency component of described signal is compensated according to the default value successively decreased, and after each compensation, determine whether the signal after compensating still does not exist error code, until there is error code.
18. devices as described in claim 16 or 17, is characterized in that, also comprise:
Processing unit, after processing the signal after described compensation, obtains feedback signal, and described feedback signal carries the business datum corresponding with the signal after this compensation;
Second determining unit, for the radio-frequency component obtained after determining that default output signal radio-frequency component is increased described default value, as the value of output signal radio-frequency component;
4th compensating unit, for the radio-frequency component of described feedback signal being compensated to the value of described output signal radio-frequency component value, obtaining the feedback signal after compensating radio-frequency component, and the feedback signal after described compensation is sent to client terminal by output port.
19. devices as claimed in claim 16, is characterized in that, also comprise:
3rd determining unit, for the signal receiving power over Ethernet device transmission is being separated with electric energy, after obtaining described signal, determine when the input signal amplitude of described signal is less than default input signal amplitude, the difference between the input signal amplitude of described signal and default input signal amplitude;
5th compensating unit, compensates for using the input signal amplitude of described difference to described signal.
20. devices as claimed in claim 19, is characterized in that, also comprise:
4th determining unit, for after processing the signal after described compensation, after obtaining feedback signal, the amplitude obtained after determining that default amplitude output signal is increased described difference, as amplitude output signal;
6th compensating unit, for described feedback signal is compensated to described output signal amplitude, obtains the feedback signal after to Amplitude Compensation, and the feedback signal after compensating is sent to client terminal by output port.
21. devices as claimed in claim 16, is characterized in that, also comprise:
Dispensing unit, for before receiving the signal and electric energy that power over Ethernet device sends, is configured for the first outside port of the main channel of signal transmission and multiple second outside ports for the alternate channel that transmits described signal;
Detecting unit, whether abnormal for the connection status detecting described first outside port;
Main channel closing unit, for when the connection status of described first outside port is abnormal, closes described main channel, and to open in described multiple second outside port arbitrary port for transmitting described signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410607888.5A CN105553895B (en) | 2014-10-31 | 2014-10-31 | Ethernet power receiving equipment, signal attenuation compensation method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410607888.5A CN105553895B (en) | 2014-10-31 | 2014-10-31 | Ethernet power receiving equipment, signal attenuation compensation method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105553895A true CN105553895A (en) | 2016-05-04 |
| CN105553895B CN105553895B (en) | 2019-02-12 |
Family
ID=55832831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410607888.5A Active CN105553895B (en) | 2014-10-31 | 2014-10-31 | Ethernet power receiving equipment, signal attenuation compensation method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105553895B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107426118A (en) * | 2017-07-24 | 2017-12-01 | 西安微电子技术研究所 | A kind of gigabit Ethernet switched circuit access mechanism based on MDC/MDIO interfaces |
| CN112202569A (en) * | 2020-11-25 | 2021-01-08 | 杭州杰为科技有限公司 | Power supply method, device, equipment and storage medium |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101056181A (en) * | 2007-02-28 | 2007-10-17 | 杭州华三通信技术有限公司 | Two-line cable power supply device, power receiving device, system and method |
| CN101546232A (en) * | 2008-03-24 | 2009-09-30 | 达诺光电股份有限公司 | Panel voltage active compensation circuit |
| US7664972B2 (en) * | 2006-12-19 | 2010-02-16 | Broadcom Corporation | System and method for controlling power delivered to a powered device based on cable characteristics |
| CN101820259A (en) * | 2010-02-08 | 2010-09-01 | 成都市华为赛门铁克科技有限公司 | Method and device for adjusting signal amplitude |
| CN102064928A (en) * | 2010-12-10 | 2011-05-18 | 福建星网锐捷网络有限公司 | Method and device for obtaining signal compensating parameters and network equipment |
| CN102111194A (en) * | 2009-12-23 | 2011-06-29 | 中兴通讯股份有限公司 | Method and device for realizing simulated automatic gain control |
| CN102916818A (en) * | 2012-10-25 | 2013-02-06 | 福建星网锐捷网络有限公司 | Method, device and system for expanding POE service radius |
-
2014
- 2014-10-31 CN CN201410607888.5A patent/CN105553895B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7664972B2 (en) * | 2006-12-19 | 2010-02-16 | Broadcom Corporation | System and method for controlling power delivered to a powered device based on cable characteristics |
| CN101056181A (en) * | 2007-02-28 | 2007-10-17 | 杭州华三通信技术有限公司 | Two-line cable power supply device, power receiving device, system and method |
| CN101546232A (en) * | 2008-03-24 | 2009-09-30 | 达诺光电股份有限公司 | Panel voltage active compensation circuit |
| CN102111194A (en) * | 2009-12-23 | 2011-06-29 | 中兴通讯股份有限公司 | Method and device for realizing simulated automatic gain control |
| CN101820259A (en) * | 2010-02-08 | 2010-09-01 | 成都市华为赛门铁克科技有限公司 | Method and device for adjusting signal amplitude |
| CN102064928A (en) * | 2010-12-10 | 2011-05-18 | 福建星网锐捷网络有限公司 | Method and device for obtaining signal compensating parameters and network equipment |
| CN102916818A (en) * | 2012-10-25 | 2013-02-06 | 福建星网锐捷网络有限公司 | Method, device and system for expanding POE service radius |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107426118A (en) * | 2017-07-24 | 2017-12-01 | 西安微电子技术研究所 | A kind of gigabit Ethernet switched circuit access mechanism based on MDC/MDIO interfaces |
| CN112202569A (en) * | 2020-11-25 | 2021-01-08 | 杭州杰为科技有限公司 | Power supply method, device, equipment and storage medium |
| CN112202569B (en) * | 2020-11-25 | 2022-08-23 | 杭州杰为科技有限公司 | Power supply method, device, equipment and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105553895B (en) | 2019-02-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103843287A (en) | Electrical lighting system power control | |
| KR20180100463A (en) | Power adaptor, terminal and charging system | |
| CN201294536Y (en) | Ethernet power receiving equipment and Ethernet electric power system | |
| US20180131182A1 (en) | Power-over-ethernet power method and system | |
| US9306755B2 (en) | Data transmission device | |
| CN106253357B (en) | A kind of method of supplying power to and power supply unit | |
| CN103620572A (en) | Broadcast serial bus termination | |
| CN106330468A (en) | Ethernet power supply device and Ethernet power supply method | |
| CN103384199A (en) | Power supply method, converter and Ethernet power supply system | |
| CN103926853A (en) | Programmable resistance output device and method | |
| CN103490907B (en) | POE power supplys method of reseptance and POE power supply receiving devices | |
| CN105591817B (en) | A kind of negotiation mode processing method and Intelligent Network Element | |
| EP3531627B1 (en) | Auto-negotiation method and device for port | |
| CN105703618A (en) | Circuit for realizing large-power power supply by using routine POE and implementation method | |
| RU2654514C2 (en) | Powered method and powered device automatically adjusting power demand level | |
| CN105207785A (en) | PoE system | |
| US10659536B2 (en) | Method of controlling inverters | |
| CN105553895A (en) | Powered device in ethernet, and signal attenuation compensation method and apparatus | |
| WO2017215672A1 (en) | Power supply method and power supply device in poe system | |
| CN111181737B (en) | Control method, power receiving device and system | |
| CN104683130A (en) | Method for configuring stacking port and equipment | |
| CN110048859B (en) | POE power supply method, equipment and storage medium | |
| CN113094316B (en) | Online switching device and method of NCSI (non-volatile memory) signals | |
| CN105182807B (en) | A kind of data processing method of the data acquisition processing system based on 3G network | |
| CN101551709B (en) | Intelligent socket and method for managing multiserver |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |