CN206865474U - A kind of POE electric supply installations - Google Patents
A kind of POE electric supply installations Download PDFInfo
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- CN206865474U CN206865474U CN201720807160.6U CN201720807160U CN206865474U CN 206865474 U CN206865474 U CN 206865474U CN 201720807160 U CN201720807160 U CN 201720807160U CN 206865474 U CN206865474 U CN 206865474U
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Abstract
It the utility model is related to a kind of POE electric supply installations, including the feeder ear PSE and receiving end PD connected by cable interface, described PSE includes AC/DC modular converters, PSE chips and the DC/DC modular converters electrically connected respectively with power management module, the cable interface includes signaling interface and power supply interface, described PSE chips electrically connect with DC/DC modular converters and signaling interface respectively, described power supply interface electrically connects with DC/DC modular converters, PD is provided with the PD chips being connected with signal, and the power supply interface at PD ends is also in series with stable-pressure device.The utility model being capable of automatic identification POE or non-POE equipment, identify that non-POE equipment only carries out signal transmission, voltage stabilizing input and signal transmission, while also settable stand-by power supply can be automatically provided to POE equipment, under the external powering-off states of PSE, it still is able to enable reserve battery work automatically.
Description
Technical field
Power over Ethernet is the utility model is related to, specifically a kind of POE electric supply installations.
Background technology
POE (Power Over Ethernet) refer to existing Ethernet Cat.5 wiring architecture do not make it is any
In the case of change, for some IP-based terminals (such as IP telephone machine, wireless local network connecting point AP, web camera)
While transmitting data-signal, moreover it is possible to which the technology of direct current supply is provided for this kind equipment.POE technologies can ensure existing structure
Ensure the normal operation of existing network while connecting up safe, reduce cost to greatest extent.POE electric power systems mainly include
The equipment of PSE (client power supply unit end) and PD (power receiving equipment end), PSE as power supply, while be also the pipe of whole system
Reason person, PD are PSE load, and PSE is available for multiple PD to load.
The big multiple coincidence IEEE 802.3af standards of POE electric power systems or IEEE802.3atf standards on existing market,
During some non-standard or non-POE receiving end equipment access, equipment can not normal work, in some instances it may even be possible to the damage of equipment is caused,
Also safety problem is brought.There is larger pressure drop in POE power supply process, on netting twine simultaneously, this this may result in distal end voltage mistake
It is low, also can not be to remote equipment normal power supply.
Current voltage solution is when using POE power supplies, and artificial raising supply voltage is to compensate on netting twine
Pressure drop, this is little in plant capacity change, is feasible in the case of power supply length of mesh wire is fixed, but in fact, equipment
Changed power scope is bigger.With EPON (Ethernet Passive Optical Network, Ethernet passive optical network
Network) exemplified by custom terminal, the maximum power dissipation of busy is 4 times of idle or so, and the length of mesh wire secretly set when user fits up is
It is difficult to what is measured, this POE power supply mode all exported to existing constant voltage brings problem：
Carried in POE supply voltages too high, and when user's netting twine is shorter, the voltage at network equipment end may be too high, if
It is standby can not normal work；
If the lifting of POE supply voltages is less, and user's netting twine is longer, and the voltage at network equipment end may be too low, if
It is standby also can not normal work.
Existing POE electric power systems need to access external power source, in the state of outside power cut-off or spread of voltage,
Equipment can not just be worked, it is also possible to which equipment is caused damage in itself.
Utility model content
The utility model is directed to above-mentioned problem, there is provided a kind of POE electric supply installations, being capable of automatic identification POE or non-
POE equipment, identify that non-POE equipment only carries out signal transmission, voltage stabilizing input and signal transmission can be automatically provided to POE equipment,
Simultaneously under the external powering-off states of PSE, it still is able to enable reserve battery work automatically.
The utility model to achieve the above object, takes following technical scheme to be achieved：
A kind of POE electric supply installations, including the feeder ear PSE and receiving end PD connected by cable interface, described PSE bags
Include the AC/DC modular converters electrically connected respectively with power management module, PSE chips and DC/DC modular converters, the cable interface
Including signaling interface and power supply interface, described PSE chips electrically connect with DC/DC modular converters and signaling interface respectively, described
Power supply interface electrically connected with DC/DC modular converters, PD is provided with the PD chips being connected with signal, and the power supply interface at PD ends is also gone here and there
It is associated with stable-pressure device.
Preferably, described stable-pressure device is included respectively with receiving voltage-adjusting unit and the output that recognition unit electrically connects
Unit, voltage-adjusting unit electrically connect with output unit.
Preferably, described power management module includes：
Power supply unit, electrically connected with AC/DC modular converters, PSE chips and connection unit；
Connection unit, electrically connected with power supply unit and DC/DC modular converters.
Preferably, described PMU includes：
Recognition unit, electrically connected with AC/DC modular converters, power supply unit and battery；
Power supply unit, electrical connection recognition unit, connection unit and switch unit；
Connection unit, electrically connect power supply unit and DC/DC modular converters；
Switch unit, electrically connect charhing unit and power supply unit；
Charhing unit, electrically connect battery and switch unit.
Implementation method of the present utility model is specific as follows：
PSE is initialized, and connection unit and DC/DC modular converters are off-state, and PSE is connected with PD by netting twine,
After PSE power supplies are normal, PSE chips continuously send out test signal by signaling interface to PD chips,
If PD ends successfully return to test signal, PSE stops sending test signal, and PSE and PD only carries out signal transmission；
If PD ends return to test signal failure, PSE chips send instruction to power management module, make connection unit and DC/
DC modular converters connect, the PD normal works after stable-pressure device pressure regulation, and PD chips return to test signal, and PSE stops sending test
Signal, PSE power to PD and carry out signal transmission simultaneously.
Preferably, PSE initialization includes：
When the recognition unit of power management module detects that AC/DC modular converter input voltages are normal, switch unit inspection
Survey judges whether cell voltage is less than AC/DC modular converter input voltages, if so, battery then enters charged state, charhing unit
Voltage stabilizing charging is provided for battery, until switch unit detects cell voltage equal to AC/DC modular converters input voltage or reaches
DC/DC modular converter maximum output voltages；If it is not, then charhing unit does not work, battery cuts state undetermined by switch unit；
When recognition unit detects AC/DC modular converter input voltage exceptions, disconnect, connect with AC/DC modular converters
Enter battery operating discharge, until battery exhaust or recognition unit detect that AC/DC modular converters input voltage is normal or outside in
Disconnected input.
Preferably, after each PSE power-off, connection unit reverts to off-state with DC/DC modular converters.
Preferably, stable-pressure device pressure regulation process is as follows：PSE ends output voltage is more than PD ends operating voltage, stable-pressure device
Receive recognition unit and judgement is identified to the voltage of reception：
If input voltage is directly output to PD ends in PD ends operating voltage range, voltage by output unit, PD rectifies normal work
Make, PD chips return to test signal, and PSE chips stop sending test signal；
If input voltage is more than PD ends operating voltage range, after input voltage is down to operating voltage by voltage-adjusting unit,
PD ends are output to by output unit, PD chips return to test signal, and PSE chips stop sending test signal；
If input voltage is less than PD ends operating voltage range, PD chip operations can not return to test signal, PSE chips extremely
Control DC/DC modules are improved into output voltage, input voltage is recognized in PD ends operating voltage range until receiving recognition unit
And PD ends are output to, PD chips return to test signal, and PSE chips stop sending test signal.
The utility model has the advantages that；
1st, compatibility is good, can automatic identification POE or non-POE equipment, signal transmission is provided the non-POE equipment of identification,
Voltage-stabilized power supply and signal transmission are provided POE equipment, and the method for realization is simple and quick.
2nd, under netting twine unknown state, can automatic regulating voltage used for PD, voltage adjustment is quick and safe and reliable.
3rd, using reserve battery scheme, in the case of external world's power-off or spread of voltage, battery discharge is quickly accessed,
It is practical.
Brief description of the drawings
Fig. 1 is the structural representation of embodiment 1 of the present utility model；
Fig. 2 is the structural representation of the utility model stable-pressure device；
Fig. 3 is the power management module cut-away view of the utility model embodiment 1；
Fig. 4 is the structural representation of the utility model embodiment 2；
Fig. 5 is the power management module cut-away view of the utility model embodiment 2.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.The description only actually at least one exemplary embodiment is illustrative to be never used as to this practicality below
New and its application or any restrictions used.Based on the embodiment in the utility model, those of ordinary skill in the art are not having
There is the every other embodiment made and obtained under the premise of creative work, belong to the scope of the utility model protection.
Unless specifically stated otherwise, the part and positioned opposite, the digital table of step otherwise illustrated in these embodiments
Up to the unlimited the scope of the utility model processed of formula and numerical value.
Simultaneously, it should be appreciated that for the ease of description, the size of the various pieces shown in accompanying drawing is not according to reality
Proportionate relationship draw.
It may be not discussed in detail for technology, method and apparatus known to person of ordinary skill in the relevant, but suitable
In the case of, the technology, method and apparatus should be considered as authorizing part for specification.
In shown here and discussion all examples, any occurrence should be construed as merely exemplary, without
It is as limitation.Therefore, the other examples of exemplary embodiment can have different values.
Embodiment 1
Fig. 1 is a kind of structured flowchart of one embodiment of POE electric supply installations of the utility model, including passes through cable interface
The feeder ear PSE and receiving end PD, described PSE of connection include the AC/DC moduluss of conversion electrically connected respectively with power management module
Block, PSE chips and DC/DC modular converters, the cable interface include signaling interface and power supply interface, described PSE chips point
Do not electrically connected with DC/DC modular converters and signaling interface, described power supply interface is electrically connected with DC/DC modular converters, and PD is set
There are the PD chips being connected with signal, the power supply interface at PD ends is also in series with stable-pressure device.
Further, the stable-pressure device shown in Fig. 2 includes the voltage-adjusting unit electrically connected respectively with receiving recognition unit
And output unit, voltage-adjusting unit electrically connect with output unit.
Further, shown in Fig. 33, power management module includes：
Power supply unit, electrically connected with AC/DC modular converters, PSE chips and connection unit；
Connection unit, electrically connected with power supply unit and DC/DC modular converters.
The implementation method of the device is：PSE is initialized, and connection unit and DC/DC modular converters are off-state,
PSE is connected with PD by netting twine, and after PSE power supplies are normal, PSE chips continuously send out test letter by signaling interface to PD chips
Number,
If PD ends successfully return to test signal, PSE stops sending test signal, and PSE and PD only carries out signal transmission；
If PD ends return to test signal failure, PSE chips send instruction to power management module, make connection unit and DC/
DC modular converters connect, the PD normal works after stable-pressure device pressure regulation, and PD chips return to test signal, and PSE stops sending test
Signal, PSE power to PD and carry out signal transmission simultaneously.
Wherein, after each PSE power-off, connection unit reverts to off-state with DC/DC modular converters.
Specifically, stable-pressure device pressure regulation process is as follows：PSE ends output voltage is more than PD ends operating voltage, stable-pressure device
Receive recognition unit and judgement is identified to the voltage of reception：
If input voltage is directly output to PD ends in PD ends operating voltage range, voltage by output unit, PD rectifies normal work
Make, PD chips return to test signal, and PSE chips stop sending test signal；
If input voltage is more than PD ends operating voltage range, after input voltage is down to operating voltage by voltage-adjusting unit,
PD ends are output to by output unit, PD chips return to test signal, and PSE chips stop sending test signal；
If input voltage is less than PD ends operating voltage range, PD chip operations can not return to test signal, PSE chips extremely
Control DC/DC modules are improved into output voltage, input voltage is recognized in PD ends operating voltage range until receiving recognition unit
And PD ends are output to, PD chips return to test signal, and PSE chips stop sending test signal.
In above-described embodiment, by carrying out signal testing between PSE chips and PD chips, POE or non-POE Ethernets are distinguished
Equipment, the access of POE and non-POE equipment in the case of general-purpose interface model can be realized；To some non-standard POE or in standard
In the case of POE access unknown lengths netting twines, quick adjustment voltage is realized.
Embodiment 2
In another embodiment of the present utility model, such as Fig. 4, including the feeder ear PSE that is connected by cable interface and by
AC/DC modular converters, PSE chips and the DC/DC that electric end PD, described PSE include electrically connecting with power management module respectively turn
Change the mold block, the cable interface includes signaling interface and power supply interface, described PSE chips respectively with DC/DC modular converters and
Signaling interface electrically connects, and described power supply interface electrically connects with DC/DC modular converters, and PD is provided with the PD cores being connected with signal
Piece, the power supply interface at PD ends are also in series with stable-pressure device.
Further, the stable-pressure device shown in Fig. 2 includes the voltage-adjusting unit electrically connected respectively with receiving recognition unit
And output unit, voltage-adjusting unit electrically connect with output unit.
Wherein, as Fig. 5, described PMU include：
Recognition unit, electrically connected with AC/DC modular converters, power supply unit and battery；
Power supply unit, electrical connection recognition unit, connection unit and switch unit；
Connection unit, electrically connect power supply unit and DC/DC modular converters；
Switch unit, charhing unit and power supply unit are electrically connected, judge cell voltage, incision charging or state undetermined；
Charhing unit, battery and switch unit are electrically connected, battery enters under charged state provides voltage stabilizing charging for battery.
The implementation method of the device is as follows：
PSE is initialized, and connection unit and DC/DC modular converters are off-state, and PSE is connected with PD by netting twine,
After PSE power supplies are normal, PSE chips continuously send out test signal by signaling interface to PD chips,
If PD ends successfully return to test signal, PSE stops sending test signal, and PSE and PD only carries out signal transmission；
If PD ends return to test signal failure, PSE chips send instruction to power management module, make connection unit and DC/
DC modular converters connect, the PD normal works after stable-pressure device pressure regulation, and PD chips return to test signal, and PSE stops sending test
Signal, PSE power to PD and carry out signal transmission simultaneously.
Further, PSE initialization includes：
When the recognition unit of power management module detects that AC/DC modular converter input voltages are normal, switch unit inspection
Survey judges whether cell voltage is less than AC/DC modular converter input voltages, if so, battery then enters charged state, charhing unit
Voltage stabilizing charging is provided for battery, until switch unit detects cell voltage equal to AC/DC modular converters input voltage or reaches
DC/DC modular converter maximum output voltages；If it is not, then charhing unit does not work, battery cuts state undetermined by switch unit；
When recognition unit detects AC/DC modular converter input voltage exceptions, disconnect, connect with AC/DC modular converters
Enter battery operating discharge, until battery exhaust or recognition unit detect that AC/DC modular converters input voltage is normal or outside in
Disconnected input.
Wherein, after each PSE power-off, connection unit reverts to off-state with DC/DC modular converters.
Specifically, stable-pressure device pressure regulation process is as follows：PSE ends output voltage is more than PD ends operating voltage, stable-pressure device
Receive recognition unit and judgement is identified to the voltage of reception：
If input voltage is directly output to PD ends in PD ends operating voltage range, voltage by output unit, PD rectifies normal work
Make, PD chips return to test signal, and PSE chips stop sending test signal；
If input voltage is more than PD ends operating voltage range, after input voltage is down to operating voltage by voltage-adjusting unit,
PD ends are output to by output unit, PD chips return to test signal, and PSE chips stop sending test signal；
If input voltage is less than PD ends operating voltage range, PD chip operations can not return to test signal, PSE chips extremely
Control DC/DC modules are improved into output voltage, input voltage is recognized in PD ends operating voltage range until receiving recognition unit
And PD ends are output to, PD chips return to test signal, and PSE chips stop sending test signal.
In above-described embodiment, by carrying out signal testing between PSE chips and PD chips, POE or non-POE Ethernets are distinguished
Equipment, the access of POE and non-POE equipment in the case of general-purpose interface model can be realized；To some non-standard POE or in standard
In the case of POE access unknown lengths netting twines, quick adjustment voltage is realized；And reserve battery is added in the embodiment,
In the case of external input voltage is abnormal, equipment can still work.
This method is illustrated with reference to a specific example：
For some non-POE ethernet devices, be likely to equipment by PSE power supplies and cause to damage, at present for
Also go to distinguish and compatible POE equipment and non-POE equipment without good method.When device of the present utility model setting is initial not to
PD ends are powered, and test signal is sent to PD chips by PSE chips, if there is power supply at PD ends and under working conditions in itself, PD cores
Piece to PSE chips return test signal, thus judge equipment be non-POE equipment, return failure be then POE equipment, now PSE with
PD power supplies will connect.
During PSE powers to PD, due to the situation of line loss, the voltage received of PD terminations be likely lower than operating voltage and
It can not work.The present embodiment by PD be operating voltage range for 46-50V passageway exchange board exemplified by, peak power 50W, PSE
DC/DC modular converters initial output voltage be 50V.When calculating line loss, by 9.5 Ω of 100m resistivity/100m netting twine is
Example, resistance is 9.5 Ω.
After PSE and PD is connected, supply current isLine loss voltage is U0=1 × 9.5=9.5V,
It is U=50-9.5=40.5V that stable-pressure device, which receives the voltage that recognition unit receives, less than the minimum operating voltage at PD ends, PD without
Method normal work, PD chips return to test signal failure；PSE chips raise DC/DC modular converter output voltages, until PD is normal
Work, after PD normal works, return to test signal, PSE stops sending test signal.Simultaneously in order to which safety, DC/DC revolving dies block will
Maximum output voltage can be set, and maximum output voltage setting is work ceiling voltage 2V, i.e. 52V higher than PD.Every time after power-off,
PSE can disconnect the power supply with PD, that is, disconnect the connection of unit and DC/DC modular converters.
In another case, be DC/DC modular converter initial output voltages after line loss still greater than PD operating voltage models
Enclose, now the voltage-adjusting unit work of voltage-stablizer, by voltage stabilization in 46-50V, makes PD normal works.
In the particular embodiment, equipment can be potentially encountered external power failure or the situation of spread of voltage at work, gently
Then equipment can not normal work, it is heavy then equipment can be caused damage in itself.In the case of normal work, external voltage first passes through
Cross AC/DC modular converters and will exchange and be changed into the internal DC voltage used, after recognition unit identification voltage is normal, then be input to
Power supply unit, used for PSE inner members.Whether the voltage of the battery of switch unit detection simultaneously reaches the needs of charging, if so,
Charhing unit will be connected, voltage stabilizing charging is provided for battery；If it is not, switch unit disconnects with charhing unit, battery enters
State undetermined.When external power failure, recognition unit turn on automatically battery, voltage is provided for power supply unit, is consumed until until battery
To the greatest extent or recognition unit detects that AC/DC modular converters input voltage is normal or external interrupt inputs.It is contemplated that can be
Switch is set outside PSE, being capable of start and stop PSE or battery discharge.
The utility model can automatic identification POE or non-POE equipment, identify that non-POE equipment only carries out signal transmission, it is right
POE equipment can automatically provide voltage stabilizing input and signal transmission, while under the external powering-off states of PSE, still be able to enable automatically
Reserve battery works.
Only as described above, the only preferred embodiment of the utility model, when the utility model can not be limited with this
The scope of implementation, i.e., generally according to simple made by the content described in the utility model claims and utility model specification
Equivalent changes and modifications, all still belong within the utility model claims scope.In addition, summary part and title are only
For aiding in patent document search to be used, not it is used for limiting the interest field of the utility model.
Claims (4)
1. a kind of POE electric supply installations, including the feeder ear PSE and receiving end PD connected by cable interface, it is characterised in that institute
The PSE stated includes AC/DC modular converters, PSE chips and the DC/DC modular converters electrically connected respectively with power management module, institute
Stating cable interface includes signaling interface and power supply interface, and described PSE chips are electric with DC/DC modular converters and signaling interface respectively
Connection, described power supply interface electrically connect with DC/DC modular converters, and PD is provided with the PD chips being connected with signal, the confession at PD ends
Electrical interface is also in series with stable-pressure device.
A kind of 2. POE electric supply installations according to claim 1, it is characterised in that described stable-pressure device include respectively with
The voltage-adjusting unit and output unit of recognition unit electrical connection are received, voltage-adjusting unit electrically connects with output unit.
3. a kind of POE electric supply installations according to claim 1, it is characterised in that described power management module includes：
Power supply unit, electrically connected with AC/DC modular converters, PSE chips and connection unit；
Connection unit, electrically connected with power supply unit and DC/DC modular converters.
4. a kind of POE electric supply installations according to claim 1, it is characterised in that described PMU includes：
Recognition unit, electrically connected with AC/DC modular converters, power supply unit and battery；
Power supply unit, electrical connection recognition unit, connection unit and switch unit；
Connection unit, electrically connect power supply unit and DC/DC modular converters；
Switch unit, electrically connect charhing unit and power supply unit；
Charhing unit, electrically connect battery and switch unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720807160.6U CN206865474U (en) | 2017-07-05 | 2017-07-05 | A kind of POE electric supply installations |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720807160.6U CN206865474U (en) | 2017-07-05 | 2017-07-05 | A kind of POE electric supply installations |
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| Publication Number | Publication Date |
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| CN206865474U true CN206865474U (en) | 2018-01-09 |
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| CN201720807160.6U Expired - Fee Related CN206865474U (en) | 2017-07-05 | 2017-07-05 | A kind of POE electric supply installations |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107342871A (en) * | 2017-07-05 | 2017-11-10 | 广州市金宏骏科技工程有限公司 | A kind of POE electric supply installations and method |
| CN108964928A (en) * | 2018-07-05 | 2018-12-07 | 凌云天博光电科技股份有限公司 | A kind of wireless MOCA terminal device, feed equipment and its adaptive feed method |
-
2017
- 2017-07-05 CN CN201720807160.6U patent/CN206865474U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107342871A (en) * | 2017-07-05 | 2017-11-10 | 广州市金宏骏科技工程有限公司 | A kind of POE electric supply installations and method |
| CN108964928A (en) * | 2018-07-05 | 2018-12-07 | 凌云天博光电科技股份有限公司 | A kind of wireless MOCA terminal device, feed equipment and its adaptive feed method |
| CN108964928B (en) * | 2018-07-05 | 2020-12-25 | 凌云天博光电科技股份有限公司 | Wireless MOCA terminal equipment, feed equipment and self-adaptive feed method thereof |
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Effective date of registration: 20200918 Address after: Room A-1321, room No. 3, No. 20, Yongan Road, Shilong Economic Development Zone, Mentougou District, Beijing Patentee after: Beijing Qianyuan Wind power technology Co.,Ltd. Address before: 510000 Tianhe District, Guangzhou, Guangdong Province, No. 611, Ken Road, room 508, No. Patentee before: GUANGZHOU KINGHOME TECHNOLOGY ENGINEERING Co.,Ltd. |
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Granted publication date: 20180109 |
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