A multi-power supply mode gateway product

Abstract

The present invention provides a multi-power supply mode gateway product, which relates to the technical field of network communication hardware. The present invention provides multi-power supply modes through a power adapter power supply circuit, an Ethernet power supply circuit, and an optical and electrical composite cable power supply circuit, which can take into account numerous deployment environments; the addition of the optical and electrical composite cable power supply circuit solves the problem that the prior art cannot be deployed in a deployment scenario that only provides an optical and electrical composite cable; the subsequent power supply processing circuit can perform protocol support and power conversion on the external electrical energy input, so as to provide stable working electrical energy for the gateway; the addition of the power supply priority judgment circuit enables the power supply mode to have the ability to automatically switch the power supply priority. Therefore, the present invention has practical and promotional value compared with the existing solutions.

Description

Technical Field

[0001] The present invention relates to the technical field of network communication hardware, and particularly to a multi-power supply mode gateway product. Background Art

[0002] In recent years, the communication industry has continuously accelerated the upgrade of optical bandwidth. The continuous improvement of network infrastructure such as optical access has brought convenience to our lives.

[0003] However, due to the uncertainty of power input, the deployment of gateway devices has always been a problem. Traditional gateway products mostly use a single adapter for power supply, but not all deployment environments have plugs to supply the adapter. In this context, gateway products with PoE technology have emerged.

[0004] POE (Power Over Ethernet) refers to a technology that, without any modification to the existing Ethernet Cat.5 cabling infrastructure, can transmit data signals to some IP-based terminals (such as IP telephones, wireless LAN access points AP, network cameras, etc.) and at the same time provide DC power supply for such devices. The POE technology can ensure the safety of the existing structured cabling while ensuring the normal operation of the existing network, and minimize costs.

[0005] However, the existing technology cannot be deployed in a deployment scenario that only provides a hybrid optical and electrical cable; therefore, it is necessary to provide a multi-power supply mode gateway product to solve the above technical problems. Summary of the Invention

[0006] To solve the above technical problems, a multi-power supply mode gateway product provided by the present invention includes a gateway main circuit and a gateway power supply circuit. The gateway power supply circuit is used to provide working electrical energy for the gateway main circuit. The gateway power supply circuit includes: a power adapter power supply circuit, a network cable power supply circuit, a hybrid optical and electrical cable power supply circuit, a post-stage power supply processing circuit, and a power supply priority judgment circuit; where:

[0007] The power adapter power supply circuit supplies power prior to the network cable power supply circuit and the hybrid optical and electrical cable power supply circuit; at startup, the power adapter converts the commercial power to obtain the working electrical energy that meets the usage requirements of the gateway main circuit;

[0008] The network cable power supply circuit starts according to the power supply priority; at startup, it obtains external electrical energy input through the network cable, and after electrical energy conversion, it obtains the working electrical energy that meets the usage requirements of the gateway main circuit;

[0009] The optical and electrical composite cable power supply circuit is started according to the power supply priority; when starting, external electrical energy input is obtained through the optical and electrical composite cable, and after electrical energy conversion, the working electrical energy meeting the usage requirements of the gateway main circuit is obtained.

[0010] The subsequent power supply processing circuit is used to establish protocol support with the external electrical energy input and convert the external electrical energy input into working electrical energy according to the usage requirements of the gateway main circuit.

[0011] The power supply priority judgment circuit is used to judge the power supply priorities of the power adapter power supply circuit, the network cable power supply circuit, and the optical and electrical composite cable power supply circuit, and start the corresponding power supply circuit for power supply.

[0012] As a more specific solution, the subsequent power supply processing circuit includes a protocol front stage, an enable subsequent stage, and a subsequent stage peripheral circuit.

[0013] The protocol front stage performs protocol support through an interface controller, the interface controller is set using a PD protocol chip, and the PD protocol chip has all the functions of the IEEE 802.3af / at protocol.

[0014] The enable subsequent stage performs electrical energy conversion through a Buck circuit, the Buck circuit is set using a wide-voltage input DC_DC chip, and the wide-voltage input DC_DC chip meets the voltage range requirements specified by the IEEE 802.3af / at protocol.

[0015] As a more specific solution, the power adapter power supply circuit has the highest power supply priority and includes a power adapter and a subsequent stage voltage stabilizing circuit. The electrical energy output of the power adapter matches the working electrical energy required by the gateway main circuit, and after voltage stabilizing processing through the subsequent stage voltage stabilizing circuit, the electrical energy is directly supplied to the gateway main circuit for use.

[0016] As a more specific solution, the network cable power supply circuit is started when the power supply priority judgment is PoE power supply priority; it includes an RJ45 interface input end, a network interface transformer, and a PoE rectifier bridge.

[0017] The RJ45 interface input end is powered by a PoE network cable to obtain primary PoE input electrical energy; the primary PoE input electrical energy is tapped through the network interface transformer and rectified through the PoE rectifier bridge to output secondary PoE input electrical energy.

[0018] The post-stage power supply processing circuit is started: Through the PD protocol chip, protocol negotiation is carried out according to the IEEE 802.3af / at protocol, a voltage handshake between VDD and VSS is completed, and the secondary PoE input electrical energy is converted into primary PoE working electrical energy; The PG port of the PD protocol chip is pulled up to enable the post-stage startup; The enabled post-stage converts the primary PoE working electrical energy into the working electrical energy that meets the usage requirements of the gateway main circuit through a wide-voltage input DC_DC chip.

[0019] As a more specific solution, the optical and electrical composite cable power supply circuit is started when the power supply priority judgment is PoF power supply priority; It includes a flange and a PoF rectifier bridge;

[0020] The flange collects electrical energy through the optical and electrical composite cable to obtain primary PoF input electrical energy; The primary PoF input electrical energy is rectified through the PoF rectifier bridge to obtain secondary PoF input electrical energy;

[0021] The post-stage power supply processing circuit is started: The secondary PoF input electrical energy is non-protocol power supply, and the PD protocol chip directly pulls up the PG port to enable the post-stage startup; The enabled post-stage converts the secondary PoF input electrical energy into the working electrical energy that meets the usage requirements of the gateway main circuit through a wide-voltage input DC_DC chip.

[0022] As a more specific solution, the power supply priority judgment circuit is used to judge the power supply priority:

[0023] When the power adapter power supply circuit can supply power normally, the power supply priority judgment is: power adapter power supply priority;

[0024] When the power adapter power supply circuit cannot supply power normally, PoF / PoE power supply judgment is carried out:

[0025] When the optical and electrical composite cable power supply circuit can supply power normally, the power supply priority judgment is: PoF power supply priority;

[0026] When the optical and electrical composite cable power supply circuit cannot supply power normally, the power supply priority judgment is: PoE power supply priority.

[0027] As a more specific solution, the power supply priority judgment circuit includes a power adapter detection circuit and a PoF / PoE detection circuit; The power adapter detection circuit is used to detect whether the power adapter power supply circuit can supply power normally and give feedback; The PoF / PoE detection circuit is used to detect the PoF / PoE power supply priority and give feedback;

[0028] The power adapter detection circuit: is deployed through a Schottky diode or a logic gate chip;

[0029] The above-mentioned PoF / PoE detection circuit: The deployment is completed by detecting the voltage through a PD protocol chip.

[0030] As a more specific solution, the PD protocol chip detects the voltage through a TLP291 voltage detection circuit.

[0031] As a more specific solution, an AF / AT mode judgment circuit is also provided. The AF / AT mode judgment circuit is set through a DS1 optocoupler peripheral circuit, judges the power supply mode of the current PSE, and feeds back to the main control chip.

[0032] As a more specific solution, the gateway main circuit includes a MAC chip subsystem module, a Bob driver circuit module, and a WiFi module;

[0033] The MAC chip subsystem module is used to operate and configure the Bob driver circuit module and the WiFi module and process data, including a MAC processing chip, a DDR memory, a FLASH data memory, a debug serial port, and a communication network port;

[0034] The Bob driver circuit module is used to provide the communication function between the optical fiber and other OLT devices, including a Bob driver chip, a Bosa device, and a corresponding peripheral matching circuit;

[0035] The WiFi module is used to provide WiFi signal coverage and wireless transceiver functions, including a wireless WiFi chip and a radio frequency FEM chip;

[0036] Among them, the MAC chip subsystem module is connected to the Bob driver circuit module through a Serdes interface to provide an up and down data channel; the MAC processing chip performs some configuration operations on the Bob driver chip through an I2C interface; the WiFi module is connected to the MAC chip through a PCIE and performs data transmission.

[0037] Compared with the related technologies, a multi-power supply mode gateway product provided by the present invention has the following beneficial effects:

[0038] The present invention provides multiple power supply modes through a power adapter power supply circuit, an Ethernet cable power supply circuit, and a power supply circuit for a hybrid optical and electrical cable, which can take into account many deployment environments; the addition of the power supply circuit for a hybrid optical and electrical cable solves the problem that the prior art cannot be deployed in a deployment scenario that only provides a hybrid optical and electrical cable; the subsequent power supply processing circuit can support the protocol and convert electrical energy for the external electrical energy input, so as to provide stable working electrical energy for the gateway; the addition of the power supply priority judgment circuit enables the power supply mode to have the ability to automatically switch the power supply priority. Therefore, the present invention has practical and promotional value compared with the existing solutions. Brief Description of the Drawings

[0039] Figure 1 Schematic diagram of the overall structure of the gateway power supply circuit provided by the embodiment of the present invention;

[0040] Figure 2 Specific circuit diagram of the power adapter power supply circuit provided by the embodiment of the present invention;

[0041] Figure 3 Specific circuit diagram of the RJ45 interface input end provided by the embodiment of the present invention;

[0042] Figure 4 Specific circuit diagram of the network port transformer provided by the embodiment of the present invention;

[0043] Figure 5 Specific circuit diagram of the PoE rectifier bridge provided by the embodiment of the present invention;

[0044] Figure 6 Specific circuit diagram of the flange provided by the embodiment of the present invention;

[0045] Figure 7 Specific circuit diagram of the PoF rectifier bridge provided by the embodiment of the present invention;

[0046] Figure 8 Specific circuit diagram of the post-stage power supply processing circuit provided by the embodiment of the present invention;

[0047] Figure 8a Partial enlarged circuit diagram of the upper half of the post-stage power supply processing circuit provided by the embodiment of the present invention;

[0048] Figure 8b Partial enlarged circuit diagram of the lower half of the post-stage power supply processing circuit provided by the embodiment of the present invention;

[0049] Figure 9 Specific circuit diagram of the power supply priority judgment circuit provided by the embodiment of the present invention;

[0050] Figure 10 Schematic diagram of the overall structure of the gateway main body circuit provided by the embodiment of the present invention. Specific implementation manners

[0051] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0052] As Figures 1 to 10 shown, a multi-power supply mode gateway product provided in this embodiment includes a gateway main body circuit and a gateway power supply circuit. The gateway power supply circuit is used to provide working electric energy for the gateway main body circuit. The gateway power supply circuit includes: a power adapter power supply circuit, a network cable power supply circuit, an optical and electrical composite cable power supply circuit, a post-stage power supply processing circuit, and a power supply priority judgment circuit; wherein:

[0053] The power adapter power supply circuit supplies power prior to the Ethernet power supply circuit and the optical and electrical composite cable power supply circuit; at startup, the power adapter converts the commercial power to obtain the working electrical energy that meets the usage requirements of the gateway main circuit.

[0054] The Ethernet power supply circuit starts according to the power supply priority; at startup, it obtains external electrical energy input through the Ethernet cable, and after electrical energy conversion, it obtains the working electrical energy that meets the usage requirements of the gateway main circuit.

[0055] The optical and electrical composite cable power supply circuit starts according to the power supply priority; at startup, it obtains external electrical energy input through the optical and electrical composite cable, and after electrical energy conversion, it obtains the working electrical energy that meets the usage requirements of the gateway main circuit.

[0056] Supplementary description: The optical and electrical composite cable is applicable as a transmission line in a broadband access network system. It is a new type of access method that integrates optical fibers and power transmission copper wires, and can solve problems such as broadband access, equipment power supply, and signal transmission. The relevant performance of the optical cable meets the communication industry standards YD / T 901-2001 Layered Stranded Optical Cables for Telecommunications and YD / T 1258.2-2003 Indoor Optical Cable Series Part 2: Single-Core Optical Cable; the cable transmission part meets GB 5023-2008 "Polyvinyl Chloride Insulated Cables with Rated Voltages of 450 / 750V and Below".

[0057] The post-stage power supply processing circuit is used to establish protocol support with the external electrical energy input, and convert the external electrical energy input into working electrical energy according to the usage requirements of the gateway main circuit.

[0058] The power supply priority judgment circuit is used to judge the power supply priorities of the power adapter power supply circuit, the Ethernet power supply circuit, and the optical and electrical composite cable power supply circuit, and start the corresponding power supply circuit for power supply.

[0059] It should be noted that: In this embodiment, multiple power supply methods are provided through the power adapter power supply circuit, the Ethernet power supply circuit, and the optical and electrical composite cable power supply circuit, which can accommodate numerous deployment environments; the addition of the optical and electrical composite cable power supply circuit solves the problem that the prior art cannot be deployed in a deployment scenario that only provides optical and electrical composite cables; the post-stage power supply processing circuit can provide protocol support and electrical energy conversion for the external electrical energy input, thereby providing stable working electrical energy for the gateway; the addition of the power supply priority judgment circuit enables the power supply method to have the ability to automatically switch the power supply priority.

[0060] This embodiment integrates and optimizes the existing power supply technology to achieve the compatibility and switching of multiple power supply methods, facilitating the installation and power supply of the gateway in various scenarios. In places with a 220V socket, a common adapter can be used for installation, and in places without a socket, an optical and electrical composite cable or an Ethernet cable can be selected for installation.

[0061] As a more specific solution, the post-stage power supply processing circuit includes a protocol front-end, an enable post-stage, and a post-stage peripheral circuit;

[0062] The protocol front-end supports protocols through an interface controller. The interface controller is set using a PD protocol chip, and the PD protocol chip has all the functions of the IEEE 802.3af / at protocol;

[0063] The enable post-stage performs power conversion through a Buck circuit. The Buck circuit is set using a wide-voltage input DC_DC chip, and the wide-voltage input DC_DC chip meets the voltage range requirements specified by the IEEE 802.3af / at protocol

[0064] It should be noted that: The IEEE 802.3af standard is a new standard based on the Power over Ethernet (POE) system. It adds relevant standards for direct power supply through network cables on the basis of IEEE 802.3. It is an extension of the existing Ethernet standard and also the first international standard for power distribution.

[0065] IEEE began developing this standard in 1999. The earliest participating manufacturers included 3Com, Intel, PowerDsine, Nortel, Mitel, and National Semiconductor. However, the shortcomings of this standard have always restricted the expansion of the market. Until June 2003, IEEE approved the 802.3af standard, which clearly stipulates power detection and control matters in remote systems and regulates the method of power supply from routers, switches, and hubs to devices such as IP phones, security systems, and wireless LAN access points through Ethernet cables. The development of IEEE 802.3af involved the efforts of many company experts, which also enabled this standard to be tested in all aspects.

[0066] In October 2009, the IEEE 802.3at standard was born in response to the needs of high-power terminals. On the basis of being compatible with the 802.3af standard, it provides greater power supply requirements to meet new needs.

[0067] Figure 8 、 Figure 8a and Figure 8b A specific post-stage power supply processing circuit is provided. This circuit selects a PD protocol chip with the model number MP8003AGQ and a wide-voltage input DC_DC chip with the model number MP9572GQB and their corresponding peripheral circuits.

[0068] As a more specific solution, the power adapter power supply circuit has the highest power supply priority and includes a power adapter and a post-stage voltage stabilization circuit. The electrical energy output of the power adapter matches the working electrical energy required by the gateway main circuit, and after being voltage-stabilized by the post-stage voltage stabilization circuit, the electrical energy is directly supplied to the gateway main circuit for use.

[0069] It should be noted that: This embodiment provides a specific power adapter power supply circuit as shown in Figure 2 and the power supply interface selects DC005.

[0070] As a more specific solution, the Ethernet power supply circuit is activated when the power supply priority is judged to be PoE power supply priority; it includes an RJ45 interface input end, a network interface transformer, and a PoE rectifier bridge;

[0071] The RJ45 interface input end is powered by a PoE network cable to obtain primary PoE input electrical energy; the primary PoE input electrical energy is tapped through the network interface transformer and rectified by the PoE rectifier bridge to obtain secondary PoE input electrical energy;

[0072] The post-stage power supply processing circuit is activated: through the PD protocol chip, protocol negotiation is carried out according to the IEEE 802.3af / at protocol, a voltage handshake between VDD and VSS is completed, and the secondary PoE input electrical energy is converted into primary PoE working electrical energy; the PG port of the PD protocol chip is pulled up to enable the post-stage to start; the enabled post-stage converts the primary PoE working electrical energy into working electrical energy that meets the usage requirements of the gateway main circuit through a wide-voltage input DC_DC chip.

[0073] It should be noted that: This embodiment provides a specific Ethernet power supply circuit composed of Figure 3 , Figure 4 and Figure 5 .

[0074] As a more specific solution, the optical fiber composite cable power supply circuit is activated when the power supply priority is judged to be PoF power supply priority; it includes a flange and a PoF rectifier bridge;

[0075] The flange collects electrical energy through the optical fiber composite cable to obtain primary PoF input electrical energy; the primary PoF input electrical energy is rectified by the PoF rectifier bridge to obtain secondary PoF input electrical energy;

[0076] The post-stage power supply processing circuit is activated: the secondary PoF input electrical energy is non-protocol power supply, the PG port of the PD protocol chip is directly pulled up to enable the post-stage to start; the enabled post-stage converts the secondary PoF input electrical energy into working electrical energy that meets the usage requirements of the gateway main circuit through a wide-voltage input DC_DC chip.

[0077] It should be noted that: This embodiment provides a specific power supply circuit for an optical and electrical composite cable composed of Figure 6 and Figure 7 .

[0078] As a more specific solution, the power supply priority judgment circuit is used to judge the power supply priority:

[0079] When the power adapter power supply circuit can supply power normally, the power supply priority judgment is: power adapter power supply is preferred;

[0080] When the power adapter power supply circuit cannot supply power normally, PoF / PoE power supply judgment is carried out:

[0081] When the optical and electrical composite cable power supply circuit can supply power normally, the power supply priority judgment is: PoF power supply is preferred;

[0082] When the optical and electrical composite cable power supply circuit cannot supply power normally, the power supply priority judgment is: PoE power supply is preferred.

[0083] As a more specific solution, the power supply priority judgment circuit includes a power adapter detection circuit and a PoF / PoE detection circuit; the power adapter detection circuit is used to detect whether the power adapter power supply circuit can supply power normally and give feedback; the PoF / PoE detection circuit is used to detect the PoF / PoE power supply priority and give feedback;

[0084] The power adapter detection circuit: is deployed through a Schottky diode or a logic gate chip;

[0085] The PoF / PoE detection circuit: is deployed by detecting the voltage through a PD protocol chip.

[0086] As a more specific solution, the PD protocol chip detects the voltage through a TLP291 voltage detection circuit.

[0087] As a more specific solution, an AF / AT mode judgment circuit is also provided. The AF / AT mode judgment circuit is set through a DS1 optocoupler peripheral circuit to judge the current power supply mode of the PSE and give feedback to the main control chip.

[0088] It should be noted that: This embodiment provides an AF / AT mode judgment circuit and a TLP291 voltage detection circuit as shown in Figure 9 . Here, the main control chip can be either a separately set microprocessor chip or a MAC processing chip of the gateway main circuit for proxy processing.

[0089] As a more specific solution, the gateway main circuit includes a MAC chip subsystem module, a Bob driver circuit module, and a WiFi module;

[0090] The MAC chip subsystem module is used to operate and configure the Bob driver circuit module and the WiFi module, and perform data processing, including a MAC processing chip, a DDR memory, a FLASH data memory, a debug serial port, and a communication network port;

[0091] The Bob driver circuit module is used to provide communication functions for optical fibers and other OLT devices, including a Bob driver chip, a Bosa device, and a corresponding peripheral matching circuit;

[0092] The WiFi module is used to provide WiFi signal coverage and wireless transceiver functions, including a wireless WiFi chip and a radio frequency FEM chip;

[0093] Among them, the MAC chip subsystem module is connected to the Bob driver circuit module through a Serdes interface to provide an upstream and downstream channel for data; the MAC processing chip performs some configuration operations on the Bob driver chip through an I2C interface; the WiFi module is connected to the MAC chip through a PCIE and performs data transmission.

[0094] According to Figures 2 to 9 The specific circuit provided is described as follows:

[0095] The specific logical steps of power supply conversion:

[0096] Method 1: Convert 12V from the mains through an ordinary adapter and supply power to the subsequent system through J4.

[0097] Method 2: Power supply through a PoE network cable is input from RJ45PJ1, and 48V is output after being tapped from the network port transformer T1 and rectified by a rectifier bridge. Through the PD protocol chip U8, negotiation is carried out according to the 802.3at standard protocol. The voltage between VDD-VSS will rise to 48V after handshaking. At this time, PG will be pulled high to enable the subsequent U6 (a wide-voltage input DCDC), which is converted to 11.5V and then supplies power to the subsequent system.

[0098] Method 3: Through an optical and electrical composite cable, it is input through the flange F2, and 56V is output after rectification (a suitable voltage can be selected according to the voltage drop of the actual power supply system (within the input range accepted by U6 DCDC)). When the non-protocol 56V is accessed, the power supply with the highest priority switches to the optical and electrical composite cable power supply, PG is pulled high, and the subsequent U6 is enabled, which is converted to 11.5V and then supplies power to the subsequent system.

[0099] The specific logical steps / judgment conditions for priority judgment;

[0100] Power over Fiber (PoF) and Power over Ethernet (PoE) Power Supply Priority Judgment:

[0101] PoF power supply takes precedence over PoE power supply. When PoE power supply is connected during PoF power supply or PoF power supply is connected during PoE power supply, when the voltage between U8 VDD - VSS > 11.5V, the U8 chip starts to detect PoF power supply. Through the hot-swap function inside U8, when VDD - VAUX > 2.3V, the MOS transistor between the VSS pin and the RTN pin inside the chip disconnects, and the Classification current of PoE power supply becomes invalid, and PoE power supply is invalid. At this time, PG will still be pulled high, and the power supply method is PoF power supply via the optical fiber composite cable.

[0102] PoE / PoF Power Supply and Adapter Power Supply Priority Judgment:

[0103] Solution 1: Considering cost factors, and there is no requirement for the switching time and continuous power supply during the switching process in this product. Utilize the characteristics of Schottky diodes to achieve priority judgment. Appropriately set the voltage after U6 DCDC conversion for PoE / PoF to 11.5V. When the adapter supplies 12V, the Schottky diode D5 is reversely cut off. Adapter power supply takes precedence.

[0104] Solution 2: Slightly higher cost, add peripheral circuits such as U10. When the adapter is connected, the AND gate outputs a corresponding high level to the gateway CPU side. After detecting this level, then control the enable pin of U6 DCDC used for PoE / PoF to turn off the PoE / PoF output. Adapter power supply takes precedence. Similarly, a similar circuit can be used to detect PoF power supply to monitor the device working status. After receiving the corresponding detection signal, an additional MOS transistor switch circuit can be added to control the power supply at the adapter end. Due to cost limitations, no additional expansion is made.

[0105] This product only requires a priority circuit that can make judgments: Adapter > PoF > PoE.

[0106] AF / AT Mode Judgment:

[0107] Utilize the DS1 optocoupler and peripheral circuits. When the Type2PSE device is powered, T2P is pulled low. When the CPU detects the low level, it judges that it is working in the AT mode. Otherwise, T2P is pulled high, and it is detected that it is working in the AF mode. Currently, it is for monitoring the power supply type at the source end.

[0108] The above are only embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present invention.

Claims

1. A multi-power supply mode gateway product, including a gateway main circuit and a gateway power supply circuit, characterized in that, The gateway power supply circuit is used to provide working electrical energy to the gateway main circuit. The gateway power supply circuit includes: a power adapter power supply circuit, an Ethernet power supply circuit, an optical electrical composite cable power supply circuit, a post-stage power supply processing circuit, and a power supply priority judgment circuit; where: The power adapter power supply circuit supplies power prior to the Ethernet power supply circuit and the optical electrical composite cable power supply circuit; at startup, the power adapter converts the commercial power to obtain the working electrical energy that meets the usage requirements of the gateway main circuit; The Ethernet power supply circuit starts according to the power supply priority; at startup, it obtains external electrical energy input through the Ethernet cable, and after electrical energy conversion, it obtains the working electrical energy that meets the usage requirements of the gateway main circuit; The optical electrical composite cable power supply circuit starts according to the power supply priority; at startup, it obtains external electrical energy input through the optical electrical composite cable, and after electrical energy conversion, it obtains the working electrical energy that meets the usage requirements of the gateway main circuit; The post-stage power supply processing circuit is used to establish protocol support with the external electrical energy input, and according to the usage requirements of the gateway main circuit, it converts the external electrical energy input into working electrical energy; The power supply priority judgment circuit is used to judge the power supply priorities of the power adapter power supply circuit, the Ethernet power supply circuit, and the optical electrical composite cable power supply circuit, and start the corresponding power supply circuit for power supply.

2. The multi-power supply mode gateway product according to claim 1, characterized in that The post-stage power supply processing circuit includes a protocol pre-stage, an enable post-stage, and a post-stage peripheral circuit; The protocol pre-stage conducts protocol support through an interface controller. The interface controller is set using a PD protocol chip, and the PD protocol chip has all the functions of the IEEE 802.3af / at protocol; The enable post-stage conducts electrical energy conversion through a Buck circuit. The Buck circuit is set using a wide-voltage input DC_DC chip, and the wide-voltage input DC_DC chip meets the voltage range requirements specified by the IEEE 802.3af / at protocol.

3. The multi-power supply mode gateway product according to claim 1, characterized in that, The power adapter power supply circuit has the highest power supply priority and includes a power adapter and a post-stage voltage stabilization circuit. The electrical energy output of the power adapter matches the working electrical energy required by the gateway main circuit, and after voltage stabilization processing through the post-stage voltage stabilization circuit, the electrical energy is directly supplied to the gateway main circuit for use.

4. A multi-power supply mode gateway product according to claim 1, characterized in that The Ethernet power supply circuit starts when the power supply priority judgment is that PoE power supply is preferred; it includes an RJ45 interface input end, an Ethernet transformer, and a PoE rectifier bridge; The RJ45 interface input end is powered by a PoE Ethernet cable to obtain primary PoE input electrical energy; The primary PoE input electrical energy is tapped through the Ethernet transformer and rectified through the PoE rectifier bridge to output secondary PoE input electrical energy; The subsequent power supply processing circuit is started: The PD protocol chip performs protocol negotiation according to the IEEE 802.3af / at protocol, completes a voltage handshake between VDD and VSS, and converts the secondary PoE input electrical energy into the primary PoE working electrical energy; The PD protocol chip pulls up the PG port to enable the subsequent stage to start; The enabled subsequent stage converts the primary PoE working electrical energy into the working electrical energy that meets the usage requirements of the gateway main circuit through a wide-voltage input DC_DC chip.

5. A multi-power supply mode gateway product according to claim 1, characterized in that, The optical and electrical composite cable power supply circuit is started when the power supply priority is judged to be PoF power supply priority; It includes a flange and a PoF rectifier bridge; The flange collects electrical energy through the optical and electrical composite cable to obtain the primary PoF input electrical energy; The primary PoF input electrical energy is rectified through the PoF rectifier bridge to obtain the secondary PoF input electrical energy; The subsequent power supply processing circuit is started: The secondary PoF input electrical energy is non-protocol power supply, and the PD protocol chip directly pulls up the PG port to enable the subsequent stage to start; The enabled subsequent stage converts the secondary PoF input electrical energy into the working electrical energy that meets the usage requirements of the gateway main circuit through a wide-voltage input DC_DC chip.

6. The multi-power supply mode gateway product according to claim 1, characterized in that The power supply priority judgment circuit is used to judge the power supply priority: When the power adapter power supply circuit can supply power normally, the power supply priority is judged as: power adapter power supply priority; When the power adapter power supply circuit cannot supply power normally, PoF / PoE power supply judgment is performed: When the optical and electrical composite cable power supply circuit can supply power normally, the power supply priority is judged as: PoF power supply priority; When the optical and electrical composite cable power supply circuit cannot supply power normally, the power supply priority is judged as: PoE power supply priority.

7. The multi-power supply mode gateway product according to claim 6, characterized in that, The power supply priority judgment circuit includes a power adapter detection circuit and a PoF / PoE detection circuit; The power adapter detection circuit is used to detect whether the power adapter power supply circuit can supply power normally and give feedback; The PoF / PoE detection circuit is used to detect the PoF / PoE power supply priority and give feedback; The power adapter detection circuit: is deployed through a Schottky diode or a logic gate chip; The PoF / PoE detection circuit: is deployed by detecting the voltage through a PD protocol chip.

8. The multi-power supply mode gateway product according to claim 6, characterized in that The PD protocol chip detects the voltage through a TLP291 voltage detection circuit.

9. A multi-power supply mode gateway product according to claim 1, characterized in that, An AF / AT mode judgment circuit is also provided. The AF / AT mode judgment circuit is set through a DS1 optocoupler peripheral circuit to judge the current PSE power supply mode and give feedback to the main control chip.

10. A multi-power supply mode gateway product according to any one of claims 1 to 9, characterized in that, The gateway main circuit includes a MAC chip subsystem module, a Bob driver circuit module, and a WiFi module; The MAC chip subsystem module is used to operate, configure, and process data for the Bob driver circuit module and the WiFi module, including a MAC processing chip, a DDR memory, a FLASH data memory, a debugging serial port, and a communication network port; The Bob driver circuit module is used to provide the communication function between the optical fiber and other OLT devices, including a Bob driver chip, a Bosa device, and corresponding peripheral matching circuits; The WiFi module is used to provide WiFi signal coverage and wireless transceiver functions, including a wireless WiFi chip and a radio frequency FEM chip; Among them, the MAC chip subsystem module is connected to the Bob driver circuit module through a Serdes interface to provide an up and down data channel; the MAC processing chip performs some configuration operations on the Bob driver chip through an I2C interface; the WiFi module is connected to the MAC chip through a PCIE and data transmission is carried out.

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