CN208158608U - A kind of cascade power supply unit of double network interfaces - Google Patents
A kind of cascade power supply unit of double network interfaces Download PDFInfo
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- CN208158608U CN208158608U CN201721589209.1U CN201721589209U CN208158608U CN 208158608 U CN208158608 U CN 208158608U CN 201721589209 U CN201721589209 U CN 201721589209U CN 208158608 U CN208158608 U CN 208158608U
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Abstract
The utility model relates to security device fields, and in particular to a kind of cascade power supply unit of double network interfaces.What the utility model was achieved by the following technical programs：A kind of cascade power supply unit of double network interfaces includes localpower and adaptor interface, also includes：Network interface one and network interface two；It is connect with the local adapter interface and the network interface one, for receiving the adaptor power supplies control device of adaptor power supplies and POE power supply respectively, the adaptor power supplies control device is connect with the localpower, for powering for the localpower；POE output-controlling device is connected between the adaptor power supplies control device and the network interface two.The purpose of the utility model is to provide a kind of cascade power supply units of double network interfaces, external POE power supply can not needed to add can realize network centrally connected power supply by equipment power supply, reduce difficulty of construction and cost, and have power supply relay function, for concatenating equipment, project wiring cost is reduced.
Description
Technical field
The utility model relates to security device fields, and in particular to a kind of cascade power supply unit of double network interfaces.
Background technique
Monitoring camera function acquires real-time image information and carries out signal processing, transmission, storage, is safety monitoring equipment
The basic equipment in field needs to connect power supply power supply to the device during monitor camera work.
In the prior art, two ways is often used to monitor camera power supply, one is DC power supplies.In this technology
In scheme, DC power supply needs to be powered using adapter, and simple and effective, power circuit volume is also little, but complete machine
Line loss is very big, and many energy are had lost in the form of thermal energy, and needs to increase adapter, improves the hardware cost of user
And construction cost.
Another party's power supply mode is by POE technology, and in this power supply mode, POE circuit includes PSE chip and PD core
Piece is powered to equipment.However, power circuit volume is larger after using PD chip, is unfavorable for the miniaturization and structure of equipment
Design.The volume of actual circuit can become larger with the rising of load equipment power consumption.This, which is just determined, is not suitable for power supply
Cascade, i.e. scheme hand in hand.When needing to power to powerful device, the volume of circuit is excessive cause design it is undesirable,
The problems such as complete machine cost is excessively high.Based on this defect, the biggish equipment of power consumption cannot generally be connected using the circuit of POE power supply.
In addition, using POE technology power simultaneously also need to dock independent PSE power supply, due to need for PSE adapter designed lines,
Installation and maintenance etc., this just further increases the deployment cost of complete machine and the construction cost of client.
Utility model content
The purpose of the utility model is to provide a kind of cascade power supply units of double network interfaces, it may be unnecessary to add external POE electricity
Source can realize network centrally connected power supply by equipment power supply, reduce difficulty of construction and cost, and have power supply relay function,
For concatenating equipment, project wiring cost is reduced.
The above-mentioned technical purpose of the utility model technical scheme is that：A kind of cascade of double network interfaces
Power supply unit includes localpower and adaptor interface, also includes：
Network interface one and network interface two；
The adaptation for receiving adaptor power supplies and POE power supply respectively is connect with the adaptor interface and the network interface one
Device power control, the adaptor power supplies control device are connect with the localpower, for supplying for the localpower
Electricity；
POE output-controlling device is connected between the adaptor power supplies control device and the network interface two.
As the preferred of the utility model, also comprising the machine identity device for identifying local equipment type, described
Machine identity device is connect with the network interface one.
As the preferred of the utility model, the POE output-controlling device also includes judgment means, and the judgment means are used
The device type of the network interface two is connected in detection.
As the preferred of the utility model, the machine identity device is feedback resistance.
As the preferred of the utility model, the judgment means include test power supply device, and the test power supply device is
Resistive voltage tests circuit.
As the preferred of the utility model, the adaptor power supplies control device also includes for detecting the adaptation
When device interface and the network interface one are all powered, the localpower preferentially is transferred to using the power supply of the adaptor interface
Power supply selection device.
A kind of cascade supply network includes adapter, also comprising at least two according to claim or or or or or described
A kind of double network interfaces cascade power supply unit, double nets of the network interface two of the cascade power supply unit of double network interfaces of front end and rear end
The network interface one of the cascade power supply unit of mouth connects.
As the preferred of the utility model, the adaptor interface connects adapter, and the adapter is that 0-volt power supply is suitable
Orchestration.
In conclusion the utility model has the advantages that：
1, equipment power port can be directly to network power supply, and Ethernet can be realized by not needing to add external POE power supply
Mouth centrally connected power supply, reduces difficulty of construction and construction cost.
2, there is power supply relay function, equipment can be concatenated to greatest extent, reduce project integral construction, wiring cost.
3, hardware implementation cost is low, while being effectively reduced single product old, and guarantees that equipment performance and concatenation are set
Standby index.
Detailed description of the invention
Fig. 1 is the scheme of installation of each device of embodiment 1；
Fig. 2 is the circuit diagram of Fig. 1；
Fig. 3 is that the cascade power supply unit of multiple double network interfaces is connected with each other the schematic diagram of power supply hand in hand.
In figure：
1, adapter, 2, adaptor interface, 3, adaptor power supplies control device, 4, localpower, 11, plant-grid connection, 12,
Network interface one, 13, adaptor power supplies control device, 14, network interface two, 15, the machine identity device, 16, power supply output.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but
As long as all by the protection of Patent Law in the scope of the claims of the utility model.
Embodiment, as shown in Figure 1：The technical solution of this implementation is to provide a kind of cascade power supply unit of double network interfaces, this kind
Device can be used in safety monitoring camera, and the purpose of this kind of technical solution is so that monitoring camera has net by Ethernet
Network is for two abilities of electro-detection and supplying power for outside.
Specifically, as shown in Figure 1, comprising localpower 4, i.e., the power supply of safety monitoring camera in the present embodiment.There is also
Network interface 1 and adaptor interface 2, the effect of both parts are to be respectively connected to different electrical power.Network interface 1 connects plant-grid connection
11, access is the power supply of POE Ethernet.Adaptor interface 2 is connect with external adapter 1, and access is external DC power supply,
This two strands of power supplys are all connected in adaptor power supplies control device 3, for powering to localpower 4.In the technical scheme, nothing
By being direct current, the power supply or network power supply accessed by adapter 1 is accessed by plant-grid connection 11 and network interface 1
Power supply can power for localpower 4.
Further, the cascade power supply unit of this kind of double network interfaces also provides supplying power for outside function, adaptor power supplies control dress
Setting 3 further includes power supply selection device, and when existing simultaneously two strands of input powers, i.e. adaptor power supplies and POE network electric power all exist
When, adaptor power supplies control device 3 carries out power source performance comparison by power supply selection device, is more afterwards supplied to quality power
On POE output-controlling device 13.In general, being all using the power supply transmitted at adapter 1 when existing simultaneously this two strands of power supplys
It is exported.
The standard PSE circuit of the prior art can be used in POE output-controlling device 13, when needing to connect high power load,
Discrete simulation POE output can be used, and high-power output is provided.
In addition, POE output-controlling device 13 includes also judgment means, need to be supplied for rear end equipment for judging whether
Electricity.Specifically, network interface 2 14 connects the network interface 1 of rear end equipment for connecting with rear end equipment.As shown in Figure 1, network interface one
The machine identity device 15 can be obtained at 12, when POE output-controlling device is by judgment means, by network interface 2 14, rear end network interface
One 12, detect the machine identity device 15 of rear end, then POE output-controlling device 13 is powered to rear end equipment.
Fig. 2 is the specific circuit diagram of the present embodiment.J1 is network interface 1 in figure, and J2 is network interface 2 14.R5 is feedback
Resistance, i.e. the machine identity device 15.J1 confession electricity can be given when headend equipment detects R5 by J1.VDD is external suitable in figure
Orchestration power supply, the adaptor interface 2 in corresponding diagram.And the specific working mode of adaptor power supplies control device 3 is, when depositing
In J1 confession electricity, and when VDD does not power, that is, indicate to only exist POE power supply at this time, MOS is automatically turned at this time.And VDD powers
When, triode Q1 and Q2 control metal-oxide-semiconductor M1, are preferentially powered using adapter, i.e. selection VDD power supply.
The power supply of POE VDD is the power supply at adaptor power supplies control device 13 in figure, may be suitable just as described above
Orchestration power supply, it is also possible to be POE network electric power, it is possible to be the power supply of VDD may also be J1 mouthfuls of power supply.This
When, it is the test power supply in this case there is also TEST VDD, TEST VDD, corresponding judgment means above, effect is to be used for
The feedback resistance R5 of detection rear end equipment whether there is.If voltage can be tested power supply and measure there are feedback resistance R5.Tool
Body, R14 is R5 divider resistance, and there are R5, controls metal-oxide-semiconductor M3 and opens metal-oxide-semiconductor M2 for POE_VDD supply subsequent equipment power supply.
As shown in figure 3, Fig. 3 is to cascade the schematic diagram that power supply unit is powered hand in hand when using using this kind of double network interfaces.
Network interface 1 is the input terminal of POE power supply, and network interface 2 is the output end of POE power supply, and the network interface 1 of rear end equipment and front end are set
Standby network interface 2 is attached by cable.Rear end equipment can take electricity by cable from headend equipment, can also connect at oneself
It connects adaptor power supplies to be powered, this kind of technical solution has power supply relay function, can concatenate equipment to greatest extent, reduces item
Purpose integral construction and wiring cost.
Claims (8)
1. a kind of cascade power supply unit of double network interfaces includes localpower (4) and adaptor interface (2), it is characterised in that：Also wrap
Contain：
Network interface one (12) and network interface two (14)；
It is connect with the adaptor interface (2) and the network interface one (12) for receiving adaptor power supplies and POE power supply respectively
Adaptor power supplies control device (3), the adaptor power supplies control device (3) connect with the localpower (4), are used for as institute
State localpower (4) power supply；
POE output-controlling device (13) are connected between the adaptor power supplies control device (3) and the network interface two (14).
2. a kind of cascade power supply unit of double network interfaces according to claim 1, it is characterised in that：Also comprising for identifying this
The machine identity device (15) of machine equipment type, the machine identity device (15) connect with the network interface one (12).
3. a kind of cascade power supply unit of double network interfaces according to claim 2, it is characterised in that：The POE output control
Device (13) also includes judgment means, and the judgment means are for detecting the device type for being connected to the network interface two (14).
4. a kind of cascade power supply unit of double network interfaces according to claim 2, it is characterised in that：The machine identity device
For feedback resistance.
5. a kind of cascade power supply unit of double network interfaces according to claim 3, it is characterised in that：The judgment means include
Power supply device is tested, the test power supply device is that resistive voltage tests circuit.
6. a kind of cascade power supply unit of double network interfaces according to claim 1, it is characterised in that：The adaptor power supplies control
Device (3) processed is also comprising for preferentially using when detecting that the adaptor interface (2) and the network interface one (12) all power
The power supply of the adaptor interface (2) is transferred to the power supply selection device of the localpower (4).
7. a kind of cascade supply network includes adapter (1), it is characterised in that：Also comprising at least two according to claim 1 or
A kind of cascade power supply unit of double network interfaces described in 2 or 3 or 4 or 5 or 6, the cascade power supply unit of double network interfaces of front end it is described
Network interface two (14) is connect with the network interface one (12) of the cascade power supply unit of double network interfaces of rear end.
8. a kind of cascade supply network according to claim 7, it is characterised in that：Adaptor interface (2) connection is suitable
Orchestration (1), the adapter are 0-48 volt supplying adapters.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721589209.1U CN208158608U (en) | 2017-11-24 | 2017-11-24 | A kind of cascade power supply unit of double network interfaces |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721589209.1U CN208158608U (en) | 2017-11-24 | 2017-11-24 | A kind of cascade power supply unit of double network interfaces |
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| CN208158608U true CN208158608U (en) | 2018-11-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110658408A (en) * | 2019-10-14 | 2020-01-07 | 深圳供电局有限公司 | Test terminal platform and test system of transformer substation safety automatic device |
-
2017
- 2017-11-24 CN CN201721589209.1U patent/CN208158608U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110658408A (en) * | 2019-10-14 | 2020-01-07 | 深圳供电局有限公司 | Test terminal platform and test system of transformer substation safety automatic device |
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