CN209844983U - Power modulation and demodulation device supporting Power Over Ethernet (POE) power supply - Google Patents
Power modulation and demodulation device supporting Power Over Ethernet (POE) power supply Download PDFInfo
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- CN209844983U CN209844983U CN201921064662.XU CN201921064662U CN209844983U CN 209844983 U CN209844983 U CN 209844983U CN 201921064662 U CN201921064662 U CN 201921064662U CN 209844983 U CN209844983 U CN 209844983U
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Abstract
The utility model discloses a power modulation and demodulation device supporting POE power supply, which comprises a power supply module, a power modulation and demodulation module, a PSE power supply module and an interface module, wherein the PSE power supply module is used for supplying power for external equipment; the interface module is used for connecting external equipment so as to transmit network signals between the external equipment and the power modem module, and supplying the power output by the PSE power supply module to the external equipment, and the interface module is respectively and electrically connected with the power modem module and the PSE power supply module. The power modulation and demodulation device is integrated with the PSE power supply module, network signals and power are simultaneously provided for external equipment through a network twisted pair by adopting a standard POE power supply technology, the external equipment does not need to be independently accessed into a power line to obtain power supply, wiring of a power line transmission system can be simplified, and occupation amount of a socket is reduced.
Description
Technical Field
The utility model relates to an electric power signal transmission technique especially relates to an electric power modulation and demodulation device that supports POE power supply.
Background
With the development of power line transmission technology, the application of transmitting signals by using the power line carrier technology is more and more extensive. In the prior art, when a signal is transmitted between a transmitting device and a receiving device through a power line, a power modem is required to modulate a network signal into a power line signal or demodulate the power line signal into the network signal. The power modem needs to be connected with a power line to build a signal transmission system, and the transmitting equipment and the receiving equipment need to be independently connected with the power line to obtain power supply, so that the wiring is complex, the management is difficult, and more sockets are occupied.
SUMMERY OF THE UTILITY MODEL
In order to solve the not enough of above-mentioned prior art, the utility model provides a power modulation demodulation device, the integration has PSE power module adopts standard POE power supply technique to provide the external equipment simultaneously with network signal and electric power through a network paired line, and the external equipment need not to insert the power line alone and acquires power supply, can simplify power line transmission system's wiring, reduces the volume of occuping to the socket.
The utility model discloses the technical problem that will solve realizes through following technical scheme:
a power modulation and demodulation device supporting POE power supply comprises a power supply module, a power modem module, a PSE power supply module and an interface module, wherein,
the power supply module is used for being connected with a power line, providing power for the power modem module and the PSE power supply module after obtaining power from the power line, and electrically connected with the power modem module and the PSE power supply module respectively;
the power modem module is used for modulating the network signal into a power line signal and demodulating the power line signal into a network signal;
the PSE power supply module is used for supplying power to external equipment;
the interface module is used for connecting external equipment so as to transmit network signals between the external equipment and the power modem module, and supplying the power output by the PSE power supply module to the external equipment, and the interface module is respectively and electrically connected with the power modem module and the PSE power supply module.
Further, the power supply module comprises a power interface/plug, a conversion circuit and a power circuit, wherein,
the power interface/plug is used for connecting a power line to obtain alternating current from the power line;
the conversion circuit is used for converting the obtained alternating current into direct current to supply power to the PSE power supply module and is electrically connected between the power interface/plug and the PSE power supply module;
the power supply circuit is used for transmitting the obtained alternating current to the power modem module to supply power to the power modem module and is electrically connected between the power interface/plug and the power modem module.
Further, the power modem module includes a power modulation circuit and a power demodulation circuit, wherein,
the power modulation circuit is used for modulating the network signal into a power line signal;
the power demodulation circuit is used for demodulating the power line signal into a network signal.
Further, the power modem module further includes a coupling circuit,
the coupling circuit is used for distributing power for the power modulation circuit and the power demodulation circuit and is respectively connected between the power module and the power modulation circuit and the power demodulation circuit.
Further, the power modem module further comprises a microprocessor circuit,
and the microprocessor circuit is used for processing the network signals output by the power modulation circuit and input by the power demodulation circuit and is respectively connected between the interface module and the power modulation circuit and the power demodulation circuit.
Further, the PSE power supply module comprises PSE power supply circuits,
and the PSE power supply circuit is used for supplying power to external equipment and is electrically connected between the power supply module and the interface module.
Further, the PSE power supply module also comprises a low power consumption detection circuit and a control switch,
the low power consumption detection circuit is used for sending a PD detection signal to external equipment when the interface module is switched on;
the control switch is used for respectively connecting or disconnecting the interface module with the PSE power supply circuit and the low-power detection circuit under the control of the low-power detection circuit, and is respectively connected between the interface module and the PSE power supply circuit and the low-power detection circuit.
Further, the interface module comprises a network cable interface,
the network cable interface is used for connecting external equipment so as to transmit data and power to the external equipment at the same time, and is respectively and electrically connected to the power modem module and the PSE power supply module.
The utility model discloses following beneficial effect has: the PSE power supply module is integrated in the power modulation and demodulation device, after the PSE power supply module acquires power from the power module, the interface module supplies power to external equipment with a PD powered circuit, a standard POE power supply technology is adopted to simultaneously provide network signals and the power to the external equipment through a network twisted pair, the external equipment does not need to be independently accessed into a power line to acquire power supply, wiring of a power line transmission system can be simplified, and the occupied amount of a socket is reduced.
Drawings
Fig. 1 is a schematic block diagram of the power modulation and demodulation apparatus provided by the present invention.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in fig. 1, a power modulation and demodulation apparatus supporting POE power supply comprises a power supply module, a power modem module, a PSE power supply module and an interface module, wherein,
the power supply module is used for being connected with a power line, providing power for the power modem module and the PSE power supply module after obtaining power from the power line, and electrically connected with the power modem module and the PSE power supply module respectively;
the power modem module is used for modulating the network signal into a power line signal and demodulating the power line signal into a network signal;
the PSE power supply module is used for supplying power to external equipment;
the interface module is used for connecting external equipment so as to transmit network signals between the external equipment and the power modem module, and supplying the power output by the PSE power supply module to the external equipment, and the interface module is respectively and electrically connected with the power modem module and the PSE power supply module.
The PSE power supply module is integrated in the power modulation and demodulation device, after the PSE power supply module acquires power from the power module, the interface module supplies power to external equipment with a PD powered circuit, a standard POE power supply technology is adopted to simultaneously provide network signals and the power to the external equipment through a network twisted pair, the external equipment does not need to be independently accessed into a power line to acquire power supply, wiring of a power line transmission system can be simplified, and the occupied amount of a socket is reduced.
The power module comprises a power interface/plug, a conversion circuit and a power circuit, wherein,
the power interface/plug is used for connecting a power line to obtain alternating current from the power line;
the conversion circuit is used for converting the obtained alternating current into direct current to supply power to the PSE power supply module and is electrically connected between the power interface/plug and the PSE power supply module;
the power supply circuit is used for transmitting the obtained alternating current to the power modem module to supply power to the power modem module and is electrically connected between the power interface/plug and the power modem module.
The power modem module includes a power modulation circuit and a power demodulation circuit, wherein,
the power modulation circuit is used for modulating the network signal into a power line signal;
the power demodulation circuit is used for demodulating the power line signal into a network signal.
The power modem module further comprises a coupling circuit,
the coupling circuit is used for distributing power for the power modulation circuit and the power demodulation circuit and is respectively connected between the power module and the power modulation circuit and the power demodulation circuit.
The power module is used for acquiring alternating current from a power line, distributing power by the coupling circuit and then respectively transmitting the alternating current to the power modulation circuit and the power demodulation circuit.
The power modem module further comprises a microprocessor circuit,
and the microprocessor circuit is used for processing the network signals output by the power modulation circuit and input by the power demodulation circuit and is respectively connected between the interface module and the power modulation circuit and the power demodulation circuit.
The network signal acquired by the interface module from an external device is transmitted to the power modulation circuit by the microprocessor power to be modulated into a power line signal; the network signal demodulated by the power demodulation circuit is transmitted to the interface module by the power of the microprocessor so as to be provided for external equipment.
The PSE power supply module includes a PSE power supply circuit,
and the PSE power supply circuit is used for supplying power to external equipment and is electrically connected between the power supply module and the interface module.
The PSE power supply circuit sends a PD detection signal to external equipment through the interface module, a PD power receiving circuit of the external equipment sends a PD feedback signal to the PSE power supply circuit after receiving the PD detection signal, the PSE power supply circuit starts to supply power to the external equipment if receiving the PD feedback signal, and the PSE power supply circuit always sends the PD detection signal to the external equipment if not receiving any PD feedback signal.
Since the interface module always keeps at the standard voltage (48V) when the PSE power supply circuit sends a PD detection signal, the power consumption is large, preferably, the PSE power supply module further includes a low power consumption detection circuit and a control switch,
the low power consumption detection circuit is used for sending a PD detection signal to external equipment when the interface module is switched on;
the control switch is used for respectively connecting or disconnecting the interface module with the PSE power supply circuit and the low-power detection circuit under the control of the low-power detection circuit, and is respectively connected between the interface module and the PSE power supply circuit and the low-power detection circuit.
The low-power detection circuit sends a PD detection signal to external equipment through the interface module in a state of switching on the interface module, a PD power receiving circuit of the external equipment sends a PD feedback signal to the low-power detection circuit after receiving the PD detection signal, if the low-power detection circuit receives the PD feedback signal, the control switch is controlled to switch on the connection between the PSE power supply circuit and the interface module and disconnect the connection between the low-power detection circuit and the interface module so as to supply power to the external equipment, and if any PD feedback signal is not received, the control switch is controlled to disconnect the connection between the PSE power supply circuit and the interface module and maintain the connection between the low-power detection circuit and the interface module, and the PD detection signal is sent to the external equipment all the time.
The working voltage of the low power consumption detection circuit is low voltage (such as 5V), and the power module also supplies power, that is, the conversion circuit of the power module supplies 48V voltage to the PSE power supply circuit according to the requirement, and supplies 5V voltage to the low power consumption detection circuit. When the low-power consumption detection circuit sends the PD detection signal, the interface module is kept at a low voltage (5V), so that the power consumption can be reduced, and the aim of saving energy is fulfilled.
The interface module comprises a network cable interface,
the network cable interface is used for connecting external equipment, simultaneously performing data transmission and power transmission on the external equipment through a network twisted pair, and electrically connected to the power modem module and the PSE power supply module respectively.
The above-mentioned embodiments only express the embodiments of the present invention, and the description thereof is specific and detailed, but the invention can not be understood as the limitation of the patent scope of the present invention, but all the technical solutions obtained by adopting the equivalent substitution or equivalent transformation should fall within the protection scope of the present invention.
Claims (8)
1. A power modulation and demodulation device supporting POE power supply is characterized by comprising a power supply module, a power modem module, a PSE power supply module and an interface module, wherein,
the power supply module is used for being connected with a power line, providing power for the power modem module and the PSE power supply module after obtaining power from the power line, and electrically connected with the power modem module and the PSE power supply module respectively;
the power modem module is used for modulating the network signal into a power line signal and demodulating the power line signal into a network signal;
the PSE power supply module is used for supplying power to external equipment;
the interface module is used for connecting external equipment so as to transmit network signals between the external equipment and the power modem module, and supplying the power output by the PSE power supply module to the external equipment, and the interface module is respectively and electrically connected with the power modem module and the PSE power supply module.
2. The POE-powered power modem apparatus as claimed in claim 1, wherein the power module comprises a power interface/plug, a switching circuit and a power circuit, wherein,
the power interface/plug is used for connecting a power line to obtain alternating current from the power line;
the conversion circuit is used for converting the obtained alternating current into direct current to supply power to the PSE power supply module and is electrically connected between the power interface/plug and the PSE power supply module;
the power supply circuit is used for transmitting the obtained alternating current to the power modem module to supply power to the power modem module and is electrically connected between the power interface/plug and the power modem module.
3. The POE-powered power modem apparatus of claim 1, wherein the power modem module comprises a power modulation circuit and a power demodulation circuit, wherein,
the power modulation circuit is used for modulating the network signal into a power line signal;
the power demodulation circuit is used for demodulating the power line signal into a network signal.
4. The POE-powered power modem apparatus of claim 3 wherein the power modem module further comprises a coupling circuit,
the coupling circuit is used for distributing power for the power modulation circuit and the power demodulation circuit and is respectively connected between the power module and the power modulation circuit and the power demodulation circuit.
5. The POE-powered power modem apparatus according to claim 3 or 4, wherein the power modem module further comprises a microprocessor circuit,
and the microprocessor circuit is used for processing the network signals output by the power modulation circuit and input by the power demodulation circuit and is respectively connected between the interface module and the power modulation circuit and the power demodulation circuit.
6. The POE-powered power modulation and demodulation device of claim 1, wherein the PSE power supply module comprises PSE power supply circuitry,
and the PSE power supply circuit is used for supplying power to external equipment and is electrically connected between the power supply module and the interface module.
7. The POE-powered power modulation and demodulation device of claim 6, wherein the PSE power supply module further comprises a low power consumption detection circuit and a control switch,
the low power consumption detection circuit is used for sending a PD detection signal to external equipment when the interface module is switched on;
the control switch is used for respectively connecting or disconnecting the interface module with the PSE power supply circuit and the low-power detection circuit under the control of the low-power detection circuit, and is respectively connected between the interface module and the PSE power supply circuit and the low-power detection circuit.
8. The POE-powered power modem apparatus of claim 1, wherein the interface module comprises a network cable interface,
the network cable interface is used for connecting external equipment so as to transmit data and power to the external equipment at the same time, and is respectively and electrically connected to the power modem module and the PSE power supply module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921064662.XU CN209844983U (en) | 2019-07-09 | 2019-07-09 | Power modulation and demodulation device supporting Power Over Ethernet (POE) power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921064662.XU CN209844983U (en) | 2019-07-09 | 2019-07-09 | Power modulation and demodulation device supporting Power Over Ethernet (POE) power supply |
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| Publication Number | Publication Date |
|---|---|
| CN209844983U true CN209844983U (en) | 2019-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921064662.XU Active CN209844983U (en) | 2019-07-09 | 2019-07-09 | Power modulation and demodulation device supporting Power Over Ethernet (POE) power supply |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111741194A (en) * | 2020-06-23 | 2020-10-02 | 浙江大华技术股份有限公司 | Separated camera, power supply control method and device |
| CN117156090A (en) * | 2023-10-30 | 2023-12-01 | 浙江禾川科技股份有限公司 | Remote display device, system and method |
-
2019
- 2019-07-09 CN CN201921064662.XU patent/CN209844983U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111741194A (en) * | 2020-06-23 | 2020-10-02 | 浙江大华技术股份有限公司 | Separated camera, power supply control method and device |
| CN117156090A (en) * | 2023-10-30 | 2023-12-01 | 浙江禾川科技股份有限公司 | Remote display device, system and method |
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| CP01 | Change in the name or title of a patent holder |
Address after: 3-4 / F, building 16, Hejing Industrial Zone, No.87 Hexiu West Road, Heping community, Fuhai street, Bao'an District, Shenzhen, Guangdong 518100 Patentee after: Shenzhen Bachao Technology Co.,Ltd. Address before: 3-4 / F, building 16, Hejing Industrial Zone, No.87 Hexiu West Road, Heping community, Fuhai street, Bao'an District, Shenzhen, Guangdong 518100 Patentee before: SHENZHEN BACHAO TECHNOLOGY Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 518103 301-401, building 16, Hejing Industrial Zone, No. 87, Hexiu West Road, Zhancheng community, Fuhai street, Bao'an District, Shenzhen, Guangdong Province Patentee after: Shenzhen Bachao Technology Co.,Ltd. Address before: 3-4 / F, building 16, Hejing Industrial Zone, No.87 Hexiu West Road, Heping community, Fuhai street, Bao'an District, Shenzhen, Guangdong 518100 Patentee before: Shenzhen Bachao Technology Co.,Ltd. |
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| CP02 | Change in the address of a patent holder |