CN106330468A - Ethernet power supply device and Ethernet power supply method - Google Patents
Ethernet power supply device and Ethernet power supply method Download PDFInfo
- Publication number
- CN106330468A CN106330468A CN201610707397.7A CN201610707397A CN106330468A CN 106330468 A CN106330468 A CN 106330468A CN 201610707397 A CN201610707397 A CN 201610707397A CN 106330468 A CN106330468 A CN 106330468A
- Authority
- CN
- China
- Prior art keywords
- poe
- chip
- pin
- equipment
- type
- 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
Classifications
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Small-Scale Networks (AREA)
Abstract
The invention discloses an Ethernet power supply device and an Ethernet power supply method. The Ethernet power supply device comprises a POE chip and a network interface; the POE chip comprises M pins; the M pins of the POE chip and M pins on an isolation transformer module are in one-to-one correspondence connection; an isolation capacitor is connected between each pair of pins, connected with the isolation transformer module, of the POE chip in series; the isolation transformer module is also used for accessing a PHY chip; the network interface comprises M pins; the M pins of the network interface and the M pins on the isolation transformer module are in one-to-one correspondence connection; the isolation capacitor is connected between each pair of pins, connected with the isolation transformer module, of the network interface in series; and the M pins of the network interface are also in one-to-one correspondence connection with the M pins on the POE chip, wherein the POE chip is used for supplying power to PD equipment accessed to the network interface. By means of the device provided by the invention, the technical problem that the power supply device in the prior art is relatively low in power supply power and cannot satisfy high-power power supply requirements can be solved.
Description
Technical field
The present invention relates to electronic technology field, particularly to a kind of POE device and POE method.
Background technology
The transmission medium that twisted-pair feeder (twisted pair, TP) is the most frequently used in a kind of generic cabling engineering (is commonly called as net
Line), the inside one has 4 to 8 lines.The most conventional is holding wire 1,2,3,6 line pair, for common data transmission；Remaining
4,5,7,8 lines pair, be for future consider reserved circuit.
The standard that POE (Pow on Ethernet, POE) passes through at present mainly has IEEE 802.3af (POE)
With IEEE 802.3at (POE+), difference of them is that port provides the output of 15.4W and 30W respectively.POE is divided into PSE
With two assemblies of PD, power supply unit (Power Sourcing Equipment, PSE) and power receiving equipment (Powered Device,
PD).PSE is normally on switch device, and PD is then positioned on terminal unit.This technology uses in an Ethernet cable 2
Line is powered, it may be assumed that using 1,2,3,6 lines to being superimposed upon on data transfer signal, current 2 pairs of lines are available for power and are to the maximum
30W。
Along with wireless, IP phone, the rise of this series products of monitoring camera etc., the function of terminal unit is the richest
Richness, the lifting the most slowly of its power consumption, part model terminal has been over peak power 30W that POE+ can be provided by so that
This Terminal Type can only change the powering mode of passback system.
High power POE (High Power Over Ethernet, HPOE), is namely currently and formulates
In standard IEEE 802.3bt, by 4,8 lines are powered, in existing HPOE power supply plan, be isolation become
The centre cap making alive of die block, the centre cap of four pairs of lines all uses just can realize high-power POE scheme, at present by
In POE chip limitation, every route power to 45W-50W can only be exported, then existing HPOE power supply plan can realize
Peak power only have 90W-100W.So, it is less that electric supply installation of the prior art exists for electrical power, is unsatisfactory for high-power
The technical problem of power demands.
Summary of the invention
The embodiment of the present invention provides a kind of POE device and POE method, is used for solving in prior art
Electric supply installation to exist for electrical power less, be unsatisfactory for the technical problem of high-power power demands.
Embodiment of the present invention first aspect provides a kind of POE device, including:
PHY chip POE chip, described POE chip includes M pin, M pin of described POE chip and isolation transformation
M pin in module connects one to one, and connects between every pair of pin that described POE chip is connected with described isolation voltage changing module
One isolation capacitance；Wherein, M is the positive integer more than 0；Described isolation voltage changing module is additionally operable to access PHY chip；
Network interface, described network interface includes M pin, M pin of described network interface and described isolation transformation
M pin in module connects one to one, and goes here and there between every pair of pin that described network interface is connected with described isolation voltage changing module
Join described isolation capacitance；M pin of described network interface also connects one to one with M pin on described POE chip；
Wherein, described POE chip is powered for the PD equipment accessed to described network interface.
Optionally, described POE device also includes:
Processor, is connected with described POE chip, for determining the type of described PD equipment, class based on described PD equipment
Type, controls described POE chip and powers described PD equipment.
Optionally, described processor determines the class of described PD equipment by resolving the LLDP signal of described PD equipment feedback
Type.
Optionally, described PD equipment is connected with described network interface by netting twine, and described PHY chip is additionally operable to: detection institute
State the type of netting twine, by the type transfers of described netting twine to described processor.
Optionally, described processor is additionally operable to: determine the type of described netting twine, type based on described netting twine, controls institute
State the polarity of M pin of POE chip；Wherein, when determining that the type of described netting twine is direct-connected line style, described POE core is controlled
The holding initial polarity of M pin of sheet；When the type determining described netting twine is to intersect line style, control the M of described POE chip
The initial polarity exchange of individual pin.
Optionally, described PHY chip also includes status register, for storing the status information of described netting twine, described place
Reason device determines the type of described netting twine by reading described status information.
Embodiment of the present invention second aspect provide POE method, be applied to the present embodiment first aspect provide with
Too net electric supply installation, described method includes:
Determine the type of described PD equipment；
Type based on described PD equipment, controls described POE chip and powers described PD equipment.Optionally, described determine
The type of described PD equipment, specifically includes: determine the class of described PD equipment by resolving the LLDP signal of described PD equipment feedback
Type.
Optionally, described PD equipment is powered by described control described POE chip, specifically includes:
Determine the type of the netting twine being connected with described PD equipment, type based on described netting twine, control described POE chip
The polarity of M pin, so that described PD equipment is powered by described POE chip by M pin of described POE chip.
Optionally, described type based on described netting twine, control the polarity of M pin of described POE chip, specifically wrap
Include:
When determining that the type of described netting twine is direct-connected line style, control the initial pole of holding of M pin of described POE chip
Property；
When the type determining described netting twine is to intersect line style, control the initial polarity pair of M pin of described POE chip
Change.
Said one in the embodiment of the present application or multiple technical scheme, at least have following one or more technology effect
Really:
1, owing to, in technical scheme in the embodiment of the present application, the POE device of design includes: POE chip,
Described POE chip includes M pin, M pin of described POE chip and M pin one_to_one corresponding on isolation voltage changing module
Connect, an isolation capacitance of connecting between every pair of pin that described POE chip is connected with described isolation voltage changing module；Wherein, M is for being more than
The positive integer of 0；Described isolation voltage changing module is additionally operable to access PHY chip；Network interface, described network interface includes M pin,
M pin of described network interface connects one to one with M pin on described isolation voltage changing module, described network interface with
Connect described isolation capacitance between every pair of pin that described isolation voltage changing module connects；M pin of described network interface also with institute
M the pin stated on POE chip connects one to one；Wherein, described POE chip sets for the PD accessed to described network interface
The technological means of available electricity.So, network interface every pair of differential lines MDI of end line to MDI4+/-add power supply negative pole PSE-, line
To MDI3+/-add power supply negative pole PSE+, line to MDI2+/-add power supply negative pole PSE-, line to MDI1+/-add power supply positive pole PSE+,
On eight MDI line J1-J8, respectively add an isolation capacitance simultaneously, due to isolation capacitance logical exchange resistance direct current, can be used to isolate
The both positive and negative polarity of PSE, differential data signals is unaffected；Transmitting unidirectional current while transmission data, its transmission of electricity uses and Ethernet
The frequency that data signal is different, does not affect the transmission of data service, in order to realize stopping direct current, PSE+/-added isolation must be linked
After electric capacity.According to current industry PSE chip every road output power 45W-50W, then use four line just can be realized simultaneously
The super high power of the port 4*45W=180W of one network interface is powered, and contrast industry HPOE power supply circuits achieve power and turn over
Times.Thus it is possible to effectively solve electric supply installation of the prior art, to exist for electrical power less, is unsatisfactory for high-power power demands
Technical problem.Realization directly utilizes line to method of supplying power to, it is provided that super large output, meets the technology effect of high-power power demands
Really.
2, owing to, in technical scheme in the embodiment of the present application, have employed described POE device and also including: place
Reason device, is connected with described POE chip, for determining the type of described PD equipment, and type based on described PD equipment, control described
The technological means that described PD equipment is powered by POE chip.So, when network interface accesses PD equipment, can be according to PD equipment
Type PD equipment is powered, it is ensured that the reasonability of power supply, thus it is possible to effectively solve prior art exists for electrically
Poor compatibility technical problem.Realize providing different output power according to dissimilar PD equipment, compatible different types of be subject to
Electricity equipment, improves the compatible technique effect of power supply mode.
3, owing to, in technical scheme in the embodiment of the present application, have employed described processor and being additionally operable to: determining described net
The type of line, type based on described netting twine, control the technological means of the polarity of M pin of described POE chip.So, exist
When network interface accesses PD equipment by netting twine, owing to the type of netting twine is different, the line sequence that two ends may use is different, the application
POE device in embodiment can adjust the polarity of power supply according to the type of netting twine, it is ensured that the reasonability of power supply.
Thus it is possible to effectively solve prior art is deposited the poor compatibility technical problem of power supply mode, it is achieved that compatible different types of net
Line, improves the compatible technique effect of power supply mode.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme in the embodiment of the present application or prior art, below embodiment is retouched
In stating, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only the one of the present invention
A little embodiments.
Fig. 1 is the structure chart of POE device in the embodiment of the present application one；
Fig. 2 is the schematic diagram of each device annexation in POE device in the embodiment of the present application one；
Fig. 3 is each device signal transmission means schematic diagram in POE device in the embodiment of the present application one；
Fig. 4 is the flow chart of POE method in the embodiment of the present application two.
Detailed description of the invention
The embodiment of the present invention provides a kind of POE device, is used for solving electric supply installation of the prior art and exists for
Electrical power is less, is unsatisfactory for the technical problem of high-power power demands.
For solving above-mentioned technical problem, the embodiment of the present invention provides a kind of POE device, and general thought is as follows:
Described POE device, including:
POE chip, described POE chip includes on M pin, M pin of described POE chip and isolation voltage changing module
M pin connects one to one, an isolation electricity of connecting between every pair of pin that described POE chip is connected with described isolation voltage changing module
Hold；Wherein, M is the positive integer more than 0；Described isolation voltage changing module is additionally operable to access PHY chip；
Network interface, described network interface includes M pin, M pin of described network interface and described isolation transformation
M pin in module connects one to one, and goes here and there between every pair of pin that described network interface is connected with described isolation voltage changing module
Join described isolation capacitance；M pin of described network interface also connects one to one with M pin on described POE chip；
Wherein, described POE chip is powered for the PD equipment accessed to described network interface.
So, POE device network interface every pair of differential lines MDI of end line to MDI4+/-add power supply negative pole
PSE-, line to MDI3+/-add power supply negative pole PSE+, line to MDI2+/-add power supply negative pole PSE-, line to MDI1+/-adding power supply just
Pole PSE+, respectively adds an isolation capacitance on eight MDI line J1-J8 simultaneously, due to isolation capacitance logical exchange resistance direct current, Ke Yiyong
Isolating the both positive and negative polarity of PSE, differential data signals is unaffected；Transmission data while transmit unidirectional current, its transmission of electricity use with
The frequency that Ethernet data signal is different, does not affect the transmission of data service, in order to realize stopping direct current, PSE+/-institute must be linked
After adding isolation capacitance.According to current industry PSE chip every road output power 45W-50W, then use four line just may be used simultaneously
Powering realizing the super high power of the port 4*45W=180W of a network interface, contrast industry HPOE power supply circuits achieve
Power is double.Thus it is possible to effectively solve electric supply installation of the prior art, to exist for electrical power less, is unsatisfactory for high-power power supply
The technical problem of demand.Realization directly utilizes line to method of supplying power to, it is provided that super large output, meets high-power power demands
Technique effect.
Below in conjunction with the accompanying drawings the main of the embodiment of the present application technical scheme is realized principle, detailed description of the invention and correspondence thereof
The beneficial effect that can reach is explained in detail.
Embodiment one
Being illustrated in figure 1 the concrete structure block diagram of POE device in the embodiment of the present invention one, Fig. 2 is that the present invention is real
Execute the annexation schematic diagram of each device in POE device in example.This POE device includes:
POE chip 10, described POE chip 10 includes M pin, M pin of described POE chip 10 and isolation transformation mould
M pin on block 20 connects one to one, between every pair of pin that described POE chip 10 is connected with described isolation voltage changing module 20
Connect an isolation capacitance；Wherein, M is the positive integer more than 0；Described isolation voltage changing module 20 is additionally operable to access PHY chip 30；
Network interface 40, described network interface includes M pin, M pin of described network interface 40 and described isolation
M pin on voltage changing module 20 connects one to one, and described network interface 40 is every with what described isolation voltage changing module 20 was connected
To described isolation capacitance of connecting between pin；M pin of described network interface 40 also with M pin on described POE chip 10
Connect one to one；
Wherein, described POE chip 10 is powered for the PD equipment accessed to described network interface 40, described network interface 40
For RJ45 network interface.
Concrete, in this city embodiment, the J8-J1 pin of isolation voltage changing module 20 respectively through an electric capacity C1, C2,
C3, C4, C5, C6, C7, C8 are connected to MX4-, MX4+, MX3-, MX3+, MX2-, MX2+, MX1-, MX1 of RJ45 network interface 40
+ pin, is used for isolating data transmission between voltage changing module 20 and RJ45 network interface 40.It is connected to respectively after eight electric capacity
On PSE-4, PSE-3, PSE+4, PSE+3, PSE-2, PSE-1, PSE+2, PSE+1 pin of POE chip 10, for POE chip
10 to RJ45 network interface 40 line to power supply, RJ45 network interface 40 is used for accessing PD equipment.
When there being PD equipment to receive RJ45 network interface 40 by netting twine, CPU can control POE chip 10PSE-1 and PSE+1 and supply
Electricity 15.4W, voltage signal arrives PD equipment by MX1-and the MX1+ line of RJ45 network interface 40 to providing, for PD device systems first
Behave；PD equipment sends LLDP (Link Layer Discovery Protocol, Link Layer Discovery Protocol) signal and passes through
Network cable transmission is to the PSE device in POE chip 10, by the RJ45 network interface 40 of PSE device by MDI data wire MX1-, MX1
+, MX2-, MX2+, MX3-, MX3+, MX4-, MX4+ and isolation voltage changing module 20 send PHY chip 30 to, PHY chip 30 is passed through
MAC chip is transmitted to processor CPU, processor CPU and resolves LLDP signal, then manages POE chip 10 and configure corresponding PSE-4, PSE
+ 4, PSE-3, PSE+3, PSE-2, PSE+2, PSE-1, PSE+1 line is to power supply, voltage signal by RJ45 network interface 40 line to carrying
It is fed to PD equipment, completes power supply.
So, POE device network interface every pair of differential lines MDI of end line to MDI4+/-add power supply negative pole
PSE-, line to MDI3+/-add power supply negative pole PSE+, line to MDI2+/-add power supply negative pole PSE-, line to MDI1+/-adding power supply just
Pole PSE+, respectively adds an isolation capacitance on eight MDI line J1-J8 simultaneously, due to isolation capacitance logical exchange resistance direct current, Ke Yiyong
Isolating the both positive and negative polarity of PSE, differential data signals is unaffected；Transmission data while transmit unidirectional current, its transmission of electricity use with
The frequency that Ethernet data signal is different, does not affect the transmission of data service, in order to realize stopping direct current, PSE+/-institute must be linked
After adding isolation capacitance.According to current industry PSE chip every road output power 45W-50W, then use four line just may be used simultaneously
Powering realizing the super high power of the port 4*45W=180W of a network interface, contrast industry HPOE power supply circuits achieve
Power is double.Thus it is possible to effectively solve electric supply installation of the prior art, to exist for electrical power less, is unsatisfactory for high-power power supply
The technical problem of demand.Realization directly utilizes line to method of supplying power to, it is provided that super large output, meets high-power power demands
Technique effect.
Concrete, in the present embodiment, described POE device also includes: processor, with described POE chip even
Connect, for determining the type of described PD equipment, type based on described PD equipment, control described POE chip 10 and described PD is set
Available electricity；
Wherein, described processor determines the type of described PD equipment by resolving the LLDP signal of described PD equipment feedback.
Concrete, power over Ethernet device in the present embodiment can also realize POE, HPOE, ultra high power three
Switching between power supply mode, owing to the PD equipment of POE and HPOE standard is all that tap is powered, backward compatible in order to realize, just
Must solve the compatibility that direct power switching is become tap to power by line, the change on combined with hardware, software can be by arranging process
Device CPU manages POE chip 10 power supply and realizes, and concrete handling process is as shown in Figure 3.PD equipment PSE in POE chip 10
First equipment send the LLDP signal with supply standard information, and LLDP signal is through RJ45 network interface 40, PHY chip 30 and
The packing encapsulation of MAC chip is sent to processor CPU, processor CPU and can resolve LLDP signal in detail, then controls management
POE chip 10 carries out corresponding powered operation.
Concrete, processor CPU can formulate suitably power supply policy control POE core according to the different type of PD equipment
PD equipment is powered by sheet 10.When processor CPU be resolved to PD equipment be the equipment meeting POE standard time, processor CPU meeting
Controlling POE chip 10 to automatically switch into PSE-1, PSE+1 and power, other roads do not power, it is achieved that 2 to 4 (1,2,3,6 lines to)
Power supply, it is also possible to switch to PSE-3, PSE+3 and power, it is achieved that 2, to 4 (4,5,7,8 lines to) power supply, meet
IEEE802.3af (POE) standard and IEEE 802.3at (POE+) standard.It is to meet when processor CPU is resolved to PD equipment
During the equipment of HPOE standard, processor CPU controls POE chip 10 and automatically switches into PSE-1, PSE+1, PSE-3, PSE+3 and power,
Realize 4 eight lines are powered, meet IEEE802.3bt standard.It is the equipment of super high power when processor CPU resolves PD equipment
Time, processor CPU control POE chip 10 automatically switch into PSE-4, PSE-3, PSE+4, PSE+3, PSE-2, PSE-1, PSE+2,
PSE+1 all powers, it is achieved that super high power is powered.
Control POE chip 10 by processor CPU management and be achieved that the line switching to powering between tap is powered, hold concurrently
Hold the normal power supply of POE, HPOE and super high power.So, when network interface accesses PD equipment, can be according to PD equipment
PD equipment is powered by type, it is ensured that the reasonability of power supply, thus it is possible to effectively solve to exist for electrically in prior art
Poor compatibility technical problem.Realize providing different output power according to dissimilar PD equipment, compatible different types of by electricity
Equipment, improves the compatible technique effect of power supply mode.
Further, POE device in the present embodiment, described PD equipment is by netting twine and described network interface
40 connect.
Described PHY chip 30 is additionally operable to: detect the type of described netting twine, by the type transfers of described netting twine to described
Processor.
Described processor is additionally operable to: determine the type of described netting twine, type based on described netting twine, controls described POE core
The polarity of M pin of sheet 10；When determining that the type of described netting twine is direct-connected line style, control M of described POE chip 10 and draw
The holding initial polarity of foot；When the type determining described netting twine is to intersect line style, control M pin of described POE chip 10
Initial polarity exchange.
Described PHY chip 30 also includes status register, and for storing the status information of described netting twine, described processor leads to
Cross the type reading described status information to determine described netting twine.
Concrete, in the present embodiment, PD equipment can pass through in netting twine access network interface 40, and then Ethernet device can
So that PD equipment is powered.Owing to netting twine is divided into direct-connected line style and line style of intersecting, direct-connected line style is that the two ends of same netting twine use
Same line sequence.Line style of intersecting is that the two ends of same netting twine use different line sequence.In order to compatible both is different types of
First netting twine, can determine the type of the netting twine accessing PD equipment by processor CPU, and then processor CPU controls power supply
The polarity of pin.
Specifically handling process is as shown in Figure 3: PHY chip 30 possesses the function of detection netting twine type, PHY chip 30 detection
Type be reported to processor CPU, processor CPU to do corresponding process.It is permissible that PHY chip 30 specifically detects netting twine type flow
It is: PHY chip 30 is provided with status register that, for storing the status information of netting twine, processor CPU is by reading this state
Information determines the type of netting twine.Wherein, status information can be 1 or 0, when status information is 1, shows that the netting twine connected is
Intersection line style, when status information is 0, shows that the netting twine connected is direct-connected line style.Concrete, PHY chip 30 is in random interval
Time substitutes transmission FLP on TD and RD and consults pulse, when the RD of PHY chip 30 has the association of the PD equipment from opposite end that receives
During business's pulse, i.e. can determine that status register corresponding state information, for intersecting line style, is set to 1 by the netting twine of connection.Work as PHY chip
Do not receive signal on the RD of 30, on RD, just send FLP consult pulse, when TD receives the negotiation pulse from opposite end PD equipment
Time, i.e. this netting twine is direct-connected line, and status register corresponding state information can be set to TD and RD automatic turning by PHY chip 30
0, processor CPU can judge the type of netting twine by the status information in read status register.
When processor CPU determine detect netting twine be intersect line style time, processor CPU control POE chip 10 PSE-4,
PSE-3 and PSE+4, PSE+3 polarity exchange, PSE-2, PSE-1 and PSE+2, PSE+1 polarity exchange, and PSE-4, PSE-3,
PSE-2, PSE-1 output cathode, PSE+4, PSE+3, PSE+2, PSE+1 output negative pole, the power supply that such PD equipment receives
Both positive and negative polarity just can ensure that normally.When processor CPU determines and detects that netting twine is direct-connected line style, processor CPU controls POE chip
10 normal power supplies, it may be assumed that the polarity of the energization pins of POE chip 10 keeps initial polarity, polarity that it goes without doing is exchanged
So, when network interface accesses PD equipment by netting twine, owing to the type of netting twine is different, two ends may use
Line sequence is different, and the POE device in the embodiment of the present application can adjust the polarity of power supply according to the type of netting twine, it is ensured that
The reasonability of power supply, thus it is possible to effectively solve to deposit in prior art the poor compatibility technical problem of power supply mode.Achieve double
Hold different types of netting twine, improve the compatible technique effect of power supply mode.
Embodiment two
Refer to Fig. 4, based on same inventive concept in embodiment one, embodiment two provides a kind of POE side
Method, the POE device in applicating adn implementing one, described method includes:
S401: determine the type of described PD equipment；
S402: type based on described PD equipment, controls described POE chip and powers described PD equipment.Optionally, described
Determine the type of described PD equipment, specifically include: determine described PD equipment by resolving the LLDP signal of described PD equipment feedback
Type.
Optionally, described PD equipment is powered by described control described POE chip, specifically includes:
Determine the type of the netting twine being connected with described PD equipment, type based on described netting twine, control described POE chip
The polarity of M pin, so that described PD equipment is powered by described POE chip by M pin of described POE chip.
Optionally, described type based on described netting twine, control the polarity of M pin of described POE chip, specifically wrap
Include:
When determining that the type of described netting twine is direct-connected line style, control the initial pole of holding of M pin of described POE chip
Property；
When the type determining described netting twine is to intersect line style, control the initial polarity pair of M pin of described POE chip
Change.
By the one or more technical schemes in the embodiment of the present application, it is possible to achieve following one or more technology are imitated
Really:
1, owing to, in technical scheme in the embodiment of the present application, the POE device of design includes: POE chip,
Described POE chip includes M pin, M pin of described POE chip and M pin one_to_one corresponding on isolation voltage changing module
Connect, an isolation capacitance of connecting between every pair of pin that described POE chip is connected with described isolation voltage changing module；Wherein, M is for being more than
The positive integer of 0；Described isolation voltage changing module is additionally operable to access PHY chip；Network interface, described network interface includes M pin,
M pin of described network interface connects one to one with M pin on described isolation voltage changing module, described network interface with
Connect described isolation capacitance between every pair of pin that described isolation voltage changing module connects；M pin of described network interface also with institute
M the pin stated on POE chip connects one to one；Wherein, described POE chip sets for the PD accessed to described network interface
The technological means of available electricity.So, network interface every pair of differential lines MDI of end line to MDI4+/-add power supply negative pole PSE-, line
To MDI3+/-add power supply negative pole PSE+, line to MDI2+/-add power supply negative pole PSE-, line to MDI1+/-add power supply positive pole PSE+,
On eight MDI line J1-J8, respectively add an isolation capacitance simultaneously, due to isolation capacitance logical exchange resistance direct current, can be used to isolate
The both positive and negative polarity of PSE, differential data signals is unaffected；Transmitting unidirectional current while transmission data, its transmission of electricity uses and Ethernet
The frequency that data signal is different, does not affect the transmission of data service, in order to realize stopping direct current, PSE+/-added isolation must be linked
After electric capacity.According to current industry PSE chip every road output power 45W-50W, then use four line just can be realized simultaneously
The super high power of the port 4*45W=180W of one network interface is powered, and contrast industry HPOE power supply circuits achieve power and turn over
Times.Thus it is possible to effectively solve electric supply installation of the prior art, to exist for electrical power less, is unsatisfactory for high-power power demands
Technical problem.Realization directly utilizes line to method of supplying power to, it is provided that super large output, meets the technology effect of high-power power demands
Really.
2, owing to, in technical scheme in the embodiment of the present application, have employed described POE device and also including: place
Reason device, is connected with described POE chip, for determining the type of described PD equipment, and type based on described PD equipment, control described
The technological means that described PD equipment is powered by POE chip.So, when network interface accesses PD equipment, can be according to PD equipment
Type PD equipment is powered, it is ensured that the reasonability of power supply, thus it is possible to effectively solve prior art exists for electrically
Poor compatibility technical problem.Realize providing different output power according to dissimilar PD equipment, compatible different types of be subject to
Electricity equipment, improves the compatible technique effect of power supply mode.
3, owing to, in technical scheme in the embodiment of the present application, have employed described processor and being additionally operable to: determining described net
The type of line, type based on described netting twine, control the technological means of the polarity of M pin of described POE chip.So, exist
When network interface accesses PD equipment by netting twine, owing to the type of netting twine is different, the line sequence that two ends may use is different, the application
POE device in embodiment can adjust the polarity of power supply according to the type of netting twine, it is ensured that the reasonability of power supply.
Thus it is possible to effectively solve prior art is deposited the poor compatibility technical problem of power supply mode, it is achieved that compatible different types of net
Line, improves the compatible technique effect of power supply mode.
Those skilled in the art are it should be appreciated that embodiments of the invention can be provided as method, system or computer program
Product.Therefore, the reality in terms of the present invention can use complete hardware embodiment, complete software implementation or combine software and hardware
Execute the form of example.And, the present invention can use at one or more computers wherein including computer usable program code
The upper computer program product implemented of usable storage medium (including but not limited to disk memory, CD-ROM, optical memory etc.)
The form of product.
The present invention is with reference to method, equipment (system) and the flow process of computer program according to embodiments of the present invention
Figure and/or block diagram describe.It should be understood that can the most first-class by computer program instructions flowchart and/or block diagram
Flow process in journey and/or square frame and flow chart and/or block diagram and/or the combination of square frame.These computer programs can be provided
Instruction arrives the processor of general purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce
A raw machine so that the instruction performed by the processor of computer or other programmable data processing device is produced for real
The device of the function specified in one flow process of flow chart or multiple flow process and/or one square frame of block diagram or multiple square frame now.
These computer program instructions may be alternatively stored in and computer or other programmable data processing device can be guided with spy
Determine in the computer-readable memory that mode works so that the instruction being stored in this computer-readable memory produces and includes referring to
Make the manufacture of device, this command device realize at one flow process of flow chart or multiple flow process and/or one square frame of block diagram or
The function specified in multiple square frames.
These computer program instructions also can be loaded in computer or other programmable data processing device so that at meter
Perform sequence of operations step on calculation machine or other programmable devices to produce computer implemented process, thus at computer or
The instruction performed on other programmable devices provides for realizing at one flow process of flow chart or multiple flow process and/or block diagram one
The step of the function specified in individual square frame or multiple square frame.
Specifically, the computer program instructions that the POE method in the embodiment of the present application is corresponding can be stored
At CD, hard disk, on the storage medium such as USB flash disk, when the computer program corresponding with POE method in storage medium refers to
When order is powered equipment reading or is performed, comprise the steps:
Determine the type of described PD equipment；
Type based on described PD equipment, controls described POE chip and powers described PD equipment.
Optionally, in described storage medium storage with step: determine the computer journey that the type of described PD equipment is corresponding
Sequence instructs when executed, specifically includes following steps:
The type of described PD equipment is determined by resolving the LLDP signal of described PD equipment feedback.
Optionally, in described storage medium storage with step: control described POE chip and described PD equipment powered corresponding
Computer program instructions when executed, specifically include following steps:
Determine the type of the netting twine being connected with described PD equipment, type based on described netting twine, control described POE chip
The polarity of M pin, so that described PD equipment is powered by described POE chip by M pin of described POE chip.
Optionally, store in described storage medium and step: type based on described netting twine, control described POE chip
Computer program instructions corresponding to the polarity of M pin when executed, specifically include following steps:
When determining that the type of described netting twine is direct-connected line style, control the initial pole of holding of M pin of described POE chip
Property；
When the type determining described netting twine is to intersect line style, control the initial polarity pair of M pin of described POE chip
Change.
Although preferred embodiments of the present invention have been described, but those skilled in the art once know basic creation
Property concept, then can make other change and amendment to these embodiments.So, claims are intended to be construed to include excellent
Select embodiment and fall into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and the modification essence without deviating from the present invention to the present invention
God and scope.So, if these amendments of the present invention and modification belong to the scope of the claims in the present invention and equivalent technologies thereof
Within, then the present invention is also intended to comprise these change and modification.
Claims (10)
1. a POE device, it is characterised in that including:
POE chip, described POE chip includes M pin, M pin of described POE chip and M on isolation voltage changing module
Pin connects one to one, an isolation capacitance of connecting between every pair of pin that described POE chip is connected with described isolation voltage changing module；
Wherein, M is the positive integer more than 0；Described isolation voltage changing module is additionally operable to access PHY chip；
Network interface, described network interface includes M pin, M pin of described network interface and described isolation voltage changing module
On M pin connect one to one, between every pair of pin that described network interface is connected with described isolation voltage changing module connect institute
State isolation capacitance；M pin of described network interface also connects one to one with M pin on described POE chip；
Wherein, described POE chip is powered for the PD equipment accessed to described network interface.
2. POE device as claimed in claim 1, it is characterised in that described POE device also includes:
Processor, is connected with described POE chip, for determining the type of described PD equipment, and type based on described PD equipment, control
Make described POE chip described PD equipment is powered.
3. POE device as claimed in claim 2, it is characterised in that described processor is by resolving described PD equipment
The LLDP signal of feedback determines the type of described PD equipment.
4. POE device as claimed in claim 2, it is characterised in that described PD equipment is by netting twine and described network
Interface connects, and described PHY chip is additionally operable to: detect the type of described netting twine, by the type transfers of described netting twine to described
Processor.
5. POE device as claimed in claim 4, it is characterised in that described processor is additionally operable to: determine described net
The type of line, type based on described netting twine, control the polarity of M pin of described POE chip；Wherein, described net is being determined
When the type of line is direct-connected line style, control the holding initial polarity of M pin of described POE chip；Determining described netting twine
When type is for intersection line style, control the initial polarity exchange of M pin of described POE chip.
6. the POE device as described in claim 4 or 5, it is characterised in that described PHY chip also includes Status register
Device, for storing the status information of described netting twine, described processor determines described netting twine by reading described status information
Type.
7. a POE method, is applied to the POE device as described in arbitrary in claim 1-10, and it is special
Levy and be, including:
Determine the type of described PD equipment；
Type based on described PD equipment, controls described POE chip and powers described PD equipment.
8. POE method as claimed in claim 7, it is characterised in that the described type determining described PD equipment, tool
Body includes: determine the type of described PD equipment by resolving the LLDP signal of described PD equipment feedback.
9. POE method as claimed in claim 8, it is characterised in that described control described POE chip is to described PD
Equipment is powered, and specifically includes:
Determine the type of the netting twine being connected with described PD equipment, type based on described netting twine, control M of described POE chip
The polarity of pin, so that described PD equipment is powered by described POE chip by M pin of described POE chip.
10. POE method as claimed in claim 9, it is characterised in that described type based on described netting twine, controls
The polarity of M pin of described POE chip, specifically includes:
When determining that the type of described netting twine is direct-connected line style, control the holding initial polarity of M pin of described POE chip；
When the type determining described netting twine is to intersect line style, control the initial polarity exchange of M pin of described POE chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610707397.7A CN106330468B (en) | 2016-08-23 | 2016-08-23 | A kind of Power over Ethernet device and Power over Ethernet method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610707397.7A CN106330468B (en) | 2016-08-23 | 2016-08-23 | A kind of Power over Ethernet device and Power over Ethernet method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106330468A true CN106330468A (en) | 2017-01-11 |
| CN106330468B CN106330468B (en) | 2019-08-20 |
Family
ID=57741750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610707397.7A Active CN106330468B (en) | 2016-08-23 | 2016-08-23 | A kind of Power over Ethernet device and Power over Ethernet method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106330468B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107294733A (en) * | 2017-07-14 | 2017-10-24 | 博为科技有限公司 | A kind of POE isolating device |
| CN108521334A (en) * | 2018-03-30 | 2018-09-11 | 深圳市云谷创新科技有限公司 | A kind of POE power supply systems |
| CN109698755A (en) * | 2017-10-23 | 2019-04-30 | 华为技术有限公司 | Method for controlling power supply, power supply unit and power receiving equipment |
| CN110266503A (en) * | 2019-06-29 | 2019-09-20 | 宁波瑞辉智能科技有限公司 | A kind of embedded industrial control terminal of double network interfaces for supporting POE to power |
| CN112202570A (en) * | 2020-09-04 | 2021-01-08 | 浙江大华技术股份有限公司 | Switch equipment and compatible power supply method |
| US20210367642A1 (en) * | 2020-05-19 | 2021-11-25 | Genetec Inc. | Power distribution and data routing in a network of devices interconnected by hybrid data/power links |
| CN115396243A (en) * | 2022-10-27 | 2022-11-25 | 武汉思创易控科技有限公司 | PoE power supply control method, storage medium and terminal |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080181316A1 (en) * | 2007-01-25 | 2008-07-31 | Philip John Crawley | Partitioned Signal and Power Transfer Across an Isolation Barrier |
| US7627398B1 (en) * | 2005-02-17 | 2009-12-01 | Sifos Technologies, Inc. | Apparatus providing power-over-ethernet test instrument |
| CN201639593U (en) * | 2010-03-05 | 2010-11-17 | 洛阳理工学院 | PSE power supply module with two network ports |
| CN202111716U (en) * | 2010-11-24 | 2012-01-11 | 醴陵恒茂电子科技有限公司 | Power over ethernet device and power over ethernet network |
| CN205160395U (en) * | 2015-11-10 | 2016-04-13 | 深圳英飞拓科技股份有限公司 | POE receives electric control circuit and POE power supply system |
-
2016
- 2016-08-23 CN CN201610707397.7A patent/CN106330468B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7627398B1 (en) * | 2005-02-17 | 2009-12-01 | Sifos Technologies, Inc. | Apparatus providing power-over-ethernet test instrument |
| US20080181316A1 (en) * | 2007-01-25 | 2008-07-31 | Philip John Crawley | Partitioned Signal and Power Transfer Across an Isolation Barrier |
| CN201639593U (en) * | 2010-03-05 | 2010-11-17 | 洛阳理工学院 | PSE power supply module with two network ports |
| CN202111716U (en) * | 2010-11-24 | 2012-01-11 | 醴陵恒茂电子科技有限公司 | Power over ethernet device and power over ethernet network |
| CN205160395U (en) * | 2015-11-10 | 2016-04-13 | 深圳英飞拓科技股份有限公司 | POE receives electric control circuit and POE power supply system |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107294733A (en) * | 2017-07-14 | 2017-10-24 | 博为科技有限公司 | A kind of POE isolating device |
| CN107294733B (en) * | 2017-07-14 | 2023-05-02 | 博为科技有限公司 | Power over Ethernet isolation device |
| CN109698755A (en) * | 2017-10-23 | 2019-04-30 | 华为技术有限公司 | Method for controlling power supply, power supply unit and power receiving equipment |
| CN109698755B (en) * | 2017-10-23 | 2021-12-14 | 华为技术有限公司 | Power supply control method, power supply device and power receiving device |
| CN108521334A (en) * | 2018-03-30 | 2018-09-11 | 深圳市云谷创新科技有限公司 | A kind of POE power supply systems |
| CN110266503A (en) * | 2019-06-29 | 2019-09-20 | 宁波瑞辉智能科技有限公司 | A kind of embedded industrial control terminal of double network interfaces for supporting POE to power |
| US20210367642A1 (en) * | 2020-05-19 | 2021-11-25 | Genetec Inc. | Power distribution and data routing in a network of devices interconnected by hybrid data/power links |
| US11770155B2 (en) * | 2020-05-19 | 2023-09-26 | Genetec Inc. | Power distribution and data routing in a network of devices interconnected by hybrid data/power links |
| CN112202570A (en) * | 2020-09-04 | 2021-01-08 | 浙江大华技术股份有限公司 | Switch equipment and compatible power supply method |
| CN115396243A (en) * | 2022-10-27 | 2022-11-25 | 武汉思创易控科技有限公司 | PoE power supply control method, storage medium and terminal |
| CN115396243B (en) * | 2022-10-27 | 2023-03-14 | 武汉思创易控科技有限公司 | PoE power supply control method, storage medium and terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106330468B (en) | 2019-08-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106330468A (en) | Ethernet power supply device and Ethernet power supply method | |
| US20060210057A1 (en) | Supplying power over four pairs of conductors in communication cable | |
| CN102761422B (en) | A kind of power over ethernet electric power system of cascade and Power over Ethernet method thereof | |
| US8935542B2 (en) | Method and system for a connector with integrated power over Ethernet functionality | |
| CN201294536Y (en) | Ethernet power receiving equipment and Ethernet electric power system | |
| US9036653B2 (en) | PoE communication bus, interface, and protocol between PoE subsystem and PHY or switch subsystems | |
| US10666049B2 (en) | Power-over-ethernet power method and system | |
| CN205666856U (en) | Train level ethernet switching equipment and system | |
| CN102075331B (en) | Ethernet power supply end equipment as well as system and method thereof for realizing power supply | |
| CN102291259B (en) | Low-voltage power line communication network layer management method based on multi-master station mode | |
| CN103384199B (en) | A power supply method, converter and Ethernet power supply system | |
| CN103152183A (en) | Electric modem switching device and method for mutual switching of electric signals and network signals | |
| CN207588888U (en) | A kind of test device and mainboard | |
| CN108683618A (en) | Communication equipment and intelligent terminal | |
| CN100389569C (en) | Data communication apparatus | |
| CN105991315A (en) | Link protection method applied to SDN (software defined network), switching device and network controller | |
| CN110602821B (en) | POE power supply-based light control system, method and storage medium | |
| CN107360005B (en) | Power receiving end equipment and power receiving method | |
| CN105159158A (en) | Electrical bus applicable to micro satellites | |
| CN110658408B (en) | Test terminal platform and test system of transformer substation safety automatic device | |
| US8806064B2 (en) | Virtual interface to the PoE device through an expanded registered map in a networking device such as a PHY | |
| CN112202570B (en) | Switch equipment and compatible power supply method | |
| CN103152235B (en) | Wireless MoCA (Multimedia over Coax Alliance) terminal | |
| CN105553895A (en) | Powered device in ethernet, and signal attenuation compensation method and apparatus | |
| CN203554501U (en) | Data network media content access control router based on overlap network |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |