CN104793544A - Two-way power supply system for POE (power over Ethernet) - Google Patents
Two-way power supply system for POE (power over Ethernet) Download PDFInfo
- Publication number
- CN104793544A CN104793544A CN201510181680.6A CN201510181680A CN104793544A CN 104793544 A CN104793544 A CN 104793544A CN 201510181680 A CN201510181680 A CN 201510181680A CN 104793544 A CN104793544 A CN 104793544A
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- CN
- China
- Prior art keywords
- module
- power supply
- pse
- supply system
- poe
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B7/00—Arrangements for obtaining smooth engagement or disengagement of automatic control
- G05B7/02—Arrangements for obtaining smooth engagement or disengagement of automatic control electric
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25242—Relay
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25314—Modular structure, modules
Abstract
The invention discloses a two-way power supply system for POE (power over Ethernet). An in POE system, a transmitter and a receiver both comprise main boards and internet port terminals convenient to interconnect. The two-way power supply system is characterized in that the transmitter comprises a PSE (power sourcing equipment) module and a PD (powered device) module; the receiver correspondingly comprises a PD module and a PSE module; the PSE modules and the PD modules are all connected through normally-opened and normally-closed relays; the transmitter or the receiver is provided with a power input module. The two-way power supply system has the advantages that in the POE system, during power supply via a power adapter, when one device uses the PSE module (the PD module is off) through the normally-opened and normally-closed relay, the other device uses the PD module (the PSE module is off) through the normally-opened and normally-closed relay, two-way power supply of PSE is intelligentized, and POE two-way transmission is finally achieved.
Description
Technical field
The present invention relates to power-supply system, more particularly, relate to bidirectional power supply system in a kind of Ethernet POE.
Background technology
In POE system, provide the equipment of power supply to be called as power-supply unit PSE (Power Sourcing Equipment), and use the equipment of power supply to be called powered device PD (Powered Device).PSE is responsible for power supply to inject ethernet line, and implements planning and the management of power.And powered device PD must meet the regulation that IEEE802.3af makes for the performance of PD in detecting process (feature).
Due in signal transmission system, normally converting other signals to network signal, by converting original signal again to after Internet Transmission, just having occurred paired equipment in application: sending ending equipment and receiving device.Current POE technology can only accomplish that receiving device is just configured to PD if sending ending equipment is configured to PSE, or sending ending equipment is configured to PD, and receiving device is just configured to PSE, and POE powers can only one-way transmission.
Summary of the invention
Can only the problem of one-way transmission in order to overcome that above-mentioned POE powers, the invention provides a kind of bidirectional power supply method and apparatus based on PSE and PD module in POE.
The technical solution adopted for the present invention to solve the technical problems is as described below: bidirectional power supply system in a kind of Ethernet POE, in Ethernet POE system, sending ending equipment and corresponding receiving device are provided with mainboard all separately and are convenient to interconnective network interface terminal, it is characterized in that: sending ending equipment is configured with PSE module and PD module, corresponding receiving device is configured with PD module and PSE module accordingly, in described each equipment, PSE module and PD module are all often opened normally closed relay and are connected, and described sending ending equipment or receiving device are provided with Power Entry Module.
In a kind of Ethernet POE of the invention described above, bidirectional power supply system also comprises a PD module detection circuit.
In a kind of Ethernet POE of the invention described above, bidirectional power supply system also comprises a connection status indicating lamp control circuit.
In the invention described above, described PSE module is independently can the plate of plug 8PIN pin.
In the invention described above, described PD module integration is on the mainboard of corresponding device.
In the invention described above, described network interface terminal is RJ45 interface.
According to the present invention of said structure, its beneficial effect is, present invention can be implemented in Ethernet POE system, when using power supply adaptor to provide power supply, when realizing an equipment use PSE supply module by normally-open normally-close relay (PD module of breaking), another equipment uses the powered module of PD (PSE module of breaking) by normally-open normally-close relay, the bidirectional power supply of intelligent PSE.Finally realize POE to power transmitted in both directions object.
Below in conjunction with accompanying drawing and embodiment, the present invention is described further.
Accompanying drawing explanation
Fig. 1 is one embodiment of the invention structured flowchart;
Fig. 2 is the another kind of example structure block diagram of corresponding diagram 1;
Fig. 3 is instantiation structure principle chart of the present invention.
Embodiment
As shown in Figure 1-2, bidirectional power supply system in a kind of Ethernet POE of the present invention, its Ethernet input terminal unit signal wire on be connected with network transformer, power input subelement to be connected in the former limit of network transformer in tap; By network transformer, power supply and ethernet signal are carried out conjunction road, and exported by PSE lead-out terminal unit, PD receiving end obtains voltage from the centre tap of network transformer.In design, every platform equipment is all integrated with PSE and PD module.Any one uses power supply adaptor to power, and when realizing a use PSE supply module by normally-open normally-close relay, PD module of breaking, another turns off PSE module by normally-open normally-close relay, uses PD module, realizes intelligent PSE bidirectional power supply control system.
The relay of normally-open normally-close, when power supply inserts from any equipment, the switch terminals adhesive of often opening, normally closed disconnection.So PD is connected on normally closed switch under normality, PSE is connected on above normal open switch.The receiving end PD that PD, the PSE work that disconnects during any one device power like this gives RJ45 works.
As shown in Figure 3, every platform equipment of the present invention is all integrated PSE and PD module, and PSE module is made can the platelet of plug 8PIN pin, and PD is then integrated in above mainboard, and PD module adopts the electric means of isolation PD.According to the IEEE 802.3af POE standard of standard, adopt end cross-over connection method, data to have employed signal isolating transformer, and utilize center tap to realize direct current supply.
Power supply unit passes through supply socket, to device power, relay disconnects the physical connection of holding with PD by adhesive simultaneously, PSE module normally works, constantly by the connection of RJ45 POE feeder ear detection PD, pilot lamp constantly glimmers, represent in detecting always, if any normal PD equipment access, the relay of PD end owing to there being normally-open normally-close, under PD corrects and is in normally closed physical connection state, so after PD equipment access, the PSE module of POE is to PD normal power supply, export the maximum support power set, detection pilot lamp keeps normal bright state, the whole complete procedure that PD equipment and PSE device complete POE normally works.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection domain that all should belong to claims of the present invention.
By reference to the accompanying drawings exemplary description is carried out to patent of the present invention above; the realization of obvious patent of the present invention is not subject to the restrictions described above; as long as have employed the various improvement that method is conceived and technical scheme is carried out of patent of the present invention; or the design of patent of the present invention and technical scheme directly applied to other occasion, all in protection scope of the present invention without to improve.
Claims (6)
1. bidirectional power supply system in an Ethernet POE, in Ethernet POE system, sending ending equipment and corresponding receiving device are provided with mainboard all separately and are convenient to interconnective network interface terminal, it is characterized in that: sending ending equipment is configured with PSE module and PD module, corresponding receiving device is configured with PD module and PSE module accordingly, in described each equipment, PSE module and PD module are all often opened normally closed relay and are connected, and described sending ending equipment or receiving device are provided with Power Entry Module.
2. bidirectional power supply system in a kind of Ethernet POE according to claim 1, is characterized in that, also comprises a PD module detection circuit.
3. bidirectional power supply system in a kind of Ethernet POE according to claim 1, is characterized in that, also comprise a connection status indicating lamp control circuit.
4. bidirectional power supply system in a kind of Ethernet POE according to claim 1, is characterized in that, described PSE module is independently can the plate of plug 8PIN pin.
5. bidirectional power supply system in a kind of Ethernet POE according to claim 1, it is characterized in that, described PD module integration is on the mainboard of corresponding device.
6. bidirectional power supply system in a kind of Ethernet POE according to claim 1, it is characterized in that, described network interface terminal is RJ4S interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510181680.6A CN104793544B (en) | 2015-04-17 | 2015-04-17 | Bidirectional power supply system in a kind of Ethernet POE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510181680.6A CN104793544B (en) | 2015-04-17 | 2015-04-17 | Bidirectional power supply system in a kind of Ethernet POE |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104793544A true CN104793544A (en) | 2015-07-22 |
| CN104793544B CN104793544B (en) | 2017-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510181680.6A Active CN104793544B (en) | 2015-04-17 | 2015-04-17 | Bidirectional power supply system in a kind of Ethernet POE |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107517107A (en) * | 2017-07-06 | 2017-12-26 | 深圳市顺讯电子有限公司 | A kind of double isolation Ethernet bidirectional power supply systems of buck and method of supplying power to |
| WO2018072460A1 (en) * | 2016-10-21 | 2018-04-26 | 华为技术有限公司 | Network device and power supply method |
| CN108418444A (en) * | 2018-04-10 | 2018-08-17 | 厦门亿联网络技术股份有限公司 | A kind of POE bidirectional power supplies device |
| US11582048B2 (en) | 2020-07-17 | 2023-02-14 | Cisco Technology, Inc. | Bi-directional power over ethernet for digital building applications |
| US11916614B2 (en) | 2019-11-01 | 2024-02-27 | Cisco Technology, Inc. | Initialization and synchronization for pulse power in a network system |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018072460A1 (en) * | 2016-10-21 | 2018-04-26 | 华为技术有限公司 | Network device and power supply method |
| CN107979474A (en) * | 2016-10-21 | 2018-05-01 | 华为技术有限公司 | The network equipment and method of supplying power to |
| CN107979474B (en) * | 2016-10-21 | 2020-06-26 | 华为技术有限公司 | Network device and power supply method |
| US11329837B2 (en) | 2016-10-21 | 2022-05-10 | Huawei Technologies Co., Ltd. | Network device and power supply method |
| CN107517107A (en) * | 2017-07-06 | 2017-12-26 | 深圳市顺讯电子有限公司 | A kind of double isolation Ethernet bidirectional power supply systems of buck and method of supplying power to |
| CN108418444A (en) * | 2018-04-10 | 2018-08-17 | 厦门亿联网络技术股份有限公司 | A kind of POE bidirectional power supplies device |
| US11916614B2 (en) | 2019-11-01 | 2024-02-27 | Cisco Technology, Inc. | Initialization and synchronization for pulse power in a network system |
| US11582048B2 (en) | 2020-07-17 | 2023-02-14 | Cisco Technology, Inc. | Bi-directional power over ethernet for digital building applications |
| US11831450B2 (en) | 2020-07-17 | 2023-11-28 | Cisco Technology, Inc. | Bi-directional power over ethernet for digital building applications |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104793544B (en) | 2017-12-15 |
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Inventor after: Zeng Xumin Inventor after: Zhan Chenghai Inventor after: Tu Huakang Inventor after: Zeng Shuisheng Inventor after: Wei Yushan Inventor before: Chen Zhifang Inventor before: Lei Zhengjiang Inventor before: Li Chuang Inventor before: Zeng Shuisheng |
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Address after: G-2f, jinxiongda science and Technology Park, 105 huanguan South Road, Guanlan street, Longhua New District, Shenzhen, Guangdong 518000 Patentee after: Shenzhen Dongming Juchuang Electronics Co.,Ltd. Address before: G-2f, jinxiongda science and Technology Park, 105 huanguan South Road, Guanlan street, Longhua New District, Shenzhen, Guangdong 518000 Patentee before: SHENZHEN PTN ELECTRONICS Ltd. |
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