TWI730592B - Method and device for remote control using optical fiber signal and Ethernet power supply - Google Patents

Abstract

A method and device for remote control using optical fiber signal and Ethernet power supply. It has a power device that outputs a DC voltage to a powered device via a network transmission line, and resets when the power device receives a reset signal Suppose, at this time, the power supply device stops supplying power to all the powered devices, a photoelectric signal converter, which receives the optical signal from the Ethernet switch via the optical fiber; when the signal controller determines that the optical signal interruption time exceeds a first During the time period, the signal controller sends a reset signal to stop the power supply from the power supply device to the powered device, and when the reset is completed, restores the power supply from the power supply device to the powered device, and the optical signal is interrupted/connected The line system can be achieved by pulling out/inserting the optical fiber at the Ethernet switch.

Description

Method and device for remote control using optical fiber signal and Ethernet power supply

A method and device for remote control, especially a method and device for remote control using optical fiber signal and Ethernet power supply.

In today's market, it is common for Ethernet Switches to be equipped with Power over Ethernet (PoE) functions. PoE is an important power supply method. It is mainly used in places where there is an Ethernet line passing, especially where there is an Ethernet line passing but there is no power supply. PoE has a plug-and-play function, so users do not Need to find another power supply, which is convenient and cost-saving. The main function of PoE is: Power Sourcing Equipment (PSE) provides DC power to the powered device (PD) via the Ethernet line, and when the powered device (PD) receives the power from the power source via the Ethernet line When the power supply device (PSE) is a DC power source, a series of communication will be carried out between the two to ensure that the operation of PoE is safe and sound. The power supply device (PSE) is usually a set of circuits integrated in the Ethernet switch or an external device, and the powered device (PD) is usually: a security IP camera, a small wireless base station (Femtocell), VoIP Phone, Signage/Display, Lighting, Medical Equipment, Vehicle Infotainment, Point of Sales, Wireless Ethernet-connected equipment or devices such as RFID (Radio Frequency Identification, RFID).

According to the IEEE 802.3 specification, the distance of a standard limited network is defined within 100 meters regardless of the technology of transmitting data or providing power. Therefore, if you need to use PoE power supply technology for remote network equipment (that is, the distance exceeds 100 meters) ) When power is provided, a Media Converter with PoE power supply capability can be used to assist in fulfilling the PoE power supply requirements of the remote network device. The media converter can mutually exchange "Ethernet data" and "Optical fiber signal". Therefore, the user can first add a Media Converter with PoE power supply capability near the remote network device to connect to the remote network device, and then a local Ethernet network The switch can use optical communication to connect to the remote media converter by using optical fiber with long-distance transmission capability, so that the local Ethernet switch can be provided by the remote media converter. PoE power supply to the remote network equipment and simultaneously transmits data, which conveniently meets the dual requirements of power supply and data transmission of the remote network equipment; in addition, general Ethernet switches or other network equipment can also contain the above The function of a media converter with PoE power supply capability can also achieve PoE power supply and data transmission for the above-mentioned remote network equipment.

However, the above method has a derivative problem, that is, if there is a problem with the remote network device and the power restart action is required, a worker must personally arrive at the site of the remote network device to perform repairs. This causes The burden for personnel to reach the site of the remote network device, especially when the remote network device is located in a place that is inaccessible to personnel, for example, the remote network device is a network monitoring device installed at a high place in a building Cameras also cause inconvenience and security concerns for personnel at work. At present, the number of remote network equipment using PoE power supply is increasing day by day. Therefore, how to solve the problem that the above-mentioned personnel must go to the site of the remote network equipment for maintenance The problem is that there is an urgent need.

In order to solve the above-mentioned problems, the present invention adopts "a method and device for remote control using optical fiber signal and Ethernet power supply", so that a local Ethernet switch passes through a remotely located and PoE power supply capable method and device. A media converter performs a power restart action on a remote network device to solve the problem that the above-mentioned personnel must go to the site of the remote network device to restart the power source. In detail, the present invention "a device that uses optical fiber signal and Ethernet power supply as remote control", the main technical means include: A power supply device can output at least one set of DC voltage to at least one powered device via at least one network transmission line. When the power supply device receives a second reset signal, the power supply device is reset. When the power supply device When resetting, the power supply device stops supplying power to the at least one powered device; A network packet switching controller can transmit and receive network packets to the at least one powered device via the at least one network transmission line. When the network packet switching controller receives a first reset signal, The network packet switching controller is reset; A photoelectric signal converter, which can receive an optical signal through an optical fiber, convert the optical signal into a digital electric signal, and output the digital electric signal; A signal controller, which is electrically connected to the power supply device, can output a second reset signal to the power supply device; the signal controller, which is electrically connected to the network packet switching controller, can be connected to the network packet switching controller Output a first reset signal; the signal controller is electrically connected to the photoelectric signal converter, and the digital electrical signal can be input from the photoelectric signal converter, and it can be judged whether the optical signal is based on the digital electrical signal input Interrupt Wherein, when the signal controller determines that the optical signal interruption time exceeds a first period of time, the signal controller sends the first reset signal and the second reset signal to reset the network packet switching controller and The power supply device to stop the power supply of the power supply device to the at least one powered device, and restore the power supply of the power supply device to the at least one powered device when the reset is completed; A plurality of isolation coil groups, wherein each isolation coil group has a first side and a second side. On the first side, each isolation coil group is electrically connected to the plurality of output differential signal terminals and the plurality of inputs Among the differential signal terminals, its exclusive corresponding output differential signal terminal and input differential signal terminal; A plurality of identical and independent connectors, each of which is on the second side and is electrically coupled to its exclusive corresponding isolation coil set and its exclusive corresponding output differential signal terminal and input differential signal terminal; A setting switch can output multiple setting values, and the signal controller is electrically connected to the setting switch, and the multiple setting values can be input from the setting switch; The optical fiber connected to the photoelectric signal converter can be connected to an Ethernet switch, the Ethernet switch provides the optical signal to the photoelectric signal converter via the optical fiber, and the Ethernet switch has an Optical fiber interface. When the optical fiber is inserted into the optical fiber interface, the optical signal converter can receive the optical signal from the Ethernet switch. When the optical fiber is pulled out of the optical fiber interface, the Ethernet switch The provided optical signal cannot be transmitted to the photoelectric signal converter; The first time period is more than three seconds; The network packet switching controller further includes: A physical layer transceiver includes: multiple output differential signal terminals; multiple input differential signal terminals.

The present invention "a method and device for remote control using optical fiber signal and Ethernet power supply", and its main technical means further include "a method for remote control using optical fiber signal and Ethernet power supply", which Contains the following: A method of using optical fiber signal and Ethernet power supply as remote control is to use a power supply device to output at least one set of DC voltage to at least one powered device, and a photoelectric signal converter to receive an optical signal and a signal via an optical fiber The controller can output a second reset signal to the power supply device and can output a first reset signal to a network packet switching controller, and can input the digital electrical signal from the photoelectric signal converter and determine the optical signal accordingly. Whether the signal is interrupted; the "Using optical fiber signal and Ethernet power supply as a remote control method" further includes the following steps: S0: Initialize the signal controller and a power over Ethernet (PoE) function, to S1; S1: Confirm whether a remote reset function (PRRT) in the signal controller is enabled? If the remote reset function (PRRT) is not enabled, go to S2, if the remote reset function (PRRT) ) Is enabled, to S3; S2: Enable the signal controller, and then enable the Power over Ethernet (PoE) function after a first period of time, to S1; S3: Confirm whether the photoelectric signal converter receives the signal? If the photoelectric signal converter receives the signal, go to S4, if the photoelectric signal converter does not receive the signal, go to S5; where the photoelectric signal converter can be passed The optical fiber receives the optical signal from the Ethernet switch; S4: Confirm whether the photoelectric signal converter continues to receive the signal for more than a second period? If the photoelectric signal converter continues to receive the signal for more than the second period, to S2, if the photoelectric signal converter does not continuously receive the signal for more than The second period, to S8; S5: Confirm whether the photoelectric signal converter continues to lose the signal for more than a third period of time? If the photoelectric signal converter continues to lose the signal for more than the third period of time, to S6, if the photoelectric signal converter receives the signal and does not continue to lose the signal for more than The third period, to S4; S6: Enable the signal controller, and then wait a fourth period, to S7; S7: Confirm whether the photoelectric signal converter continues to lose the signal? If the photoelectric signal converter continues to lose the signal, go to S5, if the photoelectric signal converter does not continue to lose the signal, go to S2; S8: Turn off the signal controller and the Power over Ethernet (PoE) function, and go to S3. The first time period is more than 5 seconds, the second time period is more than 3 seconds, the third time period is more than 10 seconds, and the fourth time period is more than 5 seconds.

In summary, the present invention "a method and device for remote control using optical fiber signal and Ethernet power supply" can provide a "device that uses optical fiber signal and Ethernet power supply as remote control", the "use of "Optical signal and Ethernet power supply as a remote control device" can provide power to a network device, which is connected to the "device using optical fiber signal and Ethernet power supply as a remote control device", The "Using optical fiber signal and Ethernet power supply as a remote control device" is connected to an Ethernet switch via an optical fiber. When the network device needs to be reset, the optical fiber can be removed from the Ethernet network. Unplug the switch and plug it back in for more than three seconds to reset the network device. Therefore, a local Ethernet switch can restart a remote network device via a remote media converter with PoE power supply capability, which can achieve the objective of the present invention.

Please refer to Figures 1-2. In one embodiment, the "device 1 using optical fiber signal and Ethernet power supply as remote control" of the present invention is essentially a media converter with PoE power supply capability (Media Converter), which can simultaneously provide power and Ethernet data transmission functions to connected powered devices (PD) such as network surveillance cameras. The "Using optical fiber signal and Ethernet power supply as a remote control device 1" has a signal controller 2, a digital power controller 3, an analog power controller 4, a network packet switching controller 5, and a Setting switch 6, a first isolation coil group 7, a second isolation coil group 8, a first connector 9, a second connector 10, a photoelectric signal converter 11, and an optical fiber 12; wherein the digital power controller 3 The analog power controller 4 is the above-mentioned power supply device (PSE). Both the first connector 9 and the second connector 10 have 8 external contacts, which can be connected to 4 pairs of transmission lines respectively. The network packet switching controller 5 is capable of transmitting and receiving network packets. The network packet switching controller 5 includes: a media access control (MAC), a physical layer transceiver PHY, wherein the The physical layer transceiver PHY has first to fourth pairs of output differential signal terminals (TX1+, TX1-), (TX2+, TX2-), (TX3+, TX3-), (TX4+, TX4-) and first to fourth pairs Input differential signal terminals (RX1+, RX1-), (RX2+, RX2-), (RX3+, RX3-), (RX4+, RX4-), among which, the first to second pairs of output differential signal terminals and the first to second The input differential signal terminals are arranged at intervals and coupled to the first connector 9 via a first isolation coil set 7, so that the eight external contacts of the first connector 9 correspond to the differential signal terminals TX1+, TX1+ and TX1+, respectively, from left to right. TX1-, RX1+, TX2+, TX2-, RX1-, RX2+, RX2-; the third to fourth pairs of output differential signal terminals and the third to fourth pairs of input differential signal terminals are spaced apart and pass through the second isolation coil group 8 It is coupled to the second connector 10 so that the 8 contacts of the second connector 10 correspond to the differential signal terminals TX3+, TX3-, R3X+, TX4+, TX4-, RX3-, RX4+, RX4- in sequence from left to right, Wherein, the first connector 9 and the second connector 10 are both RJ45 connectors commonly used in Ethernet, and the first connector 9 and the second connector 10 can respectively pass through an Ethernet network transmission line, such as CAT5 Ethernet The network transmission line of the network is connected to other Ethernet devices. The first isolation coil group 7 and the second isolation coil group 8 each have four identical and independent coupling coils, and each coupling coil includes two independent and coupled first-side inductance coils and a second side. Inductance coil, each coupling coil can bidirectionally electrically couple a pair of AC signals on the first and second side inductance coils to a pair of AC signals on the second and first side inductance coils. At the same time, each inductance The coils can conduct DC current independently and will not short-circuit with other inductance coils.

The digital power controller 3 is electrically connected to the analog power controller 4, and can control the DC voltage source output of the analog power controller 4. The analog power controller 4 is used to provide a DC voltage to the first connector 9 8 contacts and 8 contacts of the second connector 10, where the digital power controller 3 is a mixed-mode circuit for communicating both the analog power controller 4 and the signal controller 2, and at the same time, the digital power controller 3 is a mixed-mode circuit. The power controller 3 can isolate the analog high voltage of the analog power controller 4 to protect other circuits that use lower voltage in the "device 1 using optical fiber signal and Ethernet power supply as remote control" of the present invention, such as: Signal controller 2 etc. The analog power controller 4 has first to sixth voltage output terminals 41 to 46, wherein the first and third voltage output terminals 41, 43 are respectively electrically connected and output a DC low voltage V- corresponding to (TX1+, TX1-) , (RX2+, RX2-) of the two coupled induction coils in the first isolation coil group 7, the fourth and sixth voltage output terminals 44, 46 are respectively electrically connected and output DC low voltage V- to the corresponding (TX3+, TX3 -), (RX4+, RX4-) two coupled induction coils in the second isolation coil group 8, the second voltage output terminal 42 is electrically connected at the same time and outputs a high DC voltage V+ to the corresponding (RX1+, RX1-), (TX2+, TX2-) of the two coupled induction coils in the first isolation coil group 7, the fifth voltage output terminal 45 is electrically connected at the same time and outputs a high DC voltage V+ to correspond to (RX3+, RX3-), (TX4+, The two coupled induction coils in the second isolation coil group 8 of TX4-).

The digital power controller 3 further has an I ² C interface, and the I ² C interface is electrically connected to the signal controller 2 to communicate the two. The signal controller 2 has a first reset output (MAC_Reset) that is electrically connected to the network packet switching controller 5, and is used to reset the network packet switching controller 5, and the signal controller 2 has a second reset output. Set the output (PoE_Reset) to be electrically connected to the digital power controller 3 and the analog power controller 4, and used to reset the digital power controller 3 and the analog power controller 4; in addition, the above-mentioned signal controller 2 passes through a The data signal line group is electrically connected with the network packet switching controller 5 to communicate the two.

The setting switch 6 has a first signal output terminal 62, a second signal output terminal 63, a power terminal PWR electrically connected to a digital power source, and a ground terminal GND electrically connected to a ground potential; the setting switch 6 is electrically connected to a ground potential. The button can switch the first signal output terminal 62 to output a ground potential or a digital high potential. Similarly, the setting switch 6 can switch the second signal output terminal 63 through another manual button to output a ground potential or A digital high potential, wherein the first signal output terminal 62 and the second signal output terminal 63 are electrically connected to the signal controller 2, when the first signal output terminal 62 outputs a digital high potential/ground potential to the When signal controller 2, a remote reset control flag PRRT (PD Remote Reset Technology) in the signal controller 2 is enabled/disabled, and the remote reset control flag PRRT can control the remote The reset function is enabled/disabled; when the second signal output terminal 63 outputs a digital high/ground potential to the signal controller 2, a stop power supply control flag Safe_PoE_Disable in the signal controller 2 If enabled/disabled, the power supply termination control flag Safe_PoE_Disable can control the Ethernet power supply function to be disabled/enabled; the setting switch 6 can be a DIP (Dual In-line Package) switch.

The photoelectric signal converter 11 is electrically connected to the signal controller 2 via a data line, and can transmit data in two directions to communicate the two. At the same time, the photoelectric signal converter 11 can be connected to an Ethernet switch 70 via an optical fiber 12 The length of the optical fiber 12 can be hundreds to thousands of meters or longer. The photoelectric signal converter 11 can receive the digital electrical signal from the signal controller 2 and convert it into an optical signal, and then transmit it to the Ethernet switch 70 via the optical fiber 12. Similarly, the photoelectric signal conversion The device 11 can receive the optical signal from the Ethernet switch 70 via the optical fiber 12 and convert it into a digital electrical signal before sending it to the signal controller 2. The signal controller 2 can be based on the optical signal The converted digital electrical signal determines whether the above-mentioned optical signal is interrupted. The Ethernet switch 70 has an optical fiber interface 71, and the optical fiber 12 can be pulled out/inserted into the optical fiber interface 71 to disconnect/connect the Ethernet switch 70.

Please refer to Figures 1~2, the first voltage output terminal 41 outputs the DC low voltage V- to a pair of transmission lines corresponding to the first pair of output differential signal terminals (TX1+, TX1-) to provide the DC low voltage V -To the first network surveillance camera (PD1) connected to the first connector 9, the remaining second to third voltage output terminals 42~43 all output their DC voltages to the transmission lines of the corresponding differential signal terminals, respectively. Provide a DC voltage source to the first network surveillance camera (PD1) connected to the first connector 9. Similarly, the remaining fourth to sixth voltage output terminals 44~46 output their DC voltages to the corresponding differential The transmission line of the signal end provides a DC voltage source to the second network surveillance camera (PD2) connected to the second connector 10. The first and second network surveillance cameras (PD1, PD2) are the aforementioned remote network equipment. It can be seen from the above that the combination of the digital power controller 3 and the analog power controller 4 is the above-mentioned power supply device (PSE), and the first and second network surveillance cameras (PD1) connected to the first connector 9 and the second connector 10 , PD2) is the above-mentioned powered device (PD).

The present invention provides an action method that uses the optical fiber to connect the Ethernet switch and the above-mentioned "Using optical fiber signal and Ethernet power supply as a remote control device" after disconnection, which will be the same as the above-mentioned "Using optical fiber signal and Power over Ethernet as a remote control device" The remote network equipment connected to the network will restart the power supply so that personnel can restart the remote network equipment without going to the site of the remote network equipment. The purpose of the invention of the power supply; the present invention also provides "a method for remote control using optical fiber signals and Ethernet power supply" to further clarify the technical means of the present invention, as detailed below.

Figure 2 shows the invention "Using optical fiber signal and Ethernet power supply as a remote control device 1" and remote network equipment (that is, the first and second network monitoring cameras PD1, PD2) and Ethernet The connection relationship of the network switch 70, wherein the optical fiber connected to the optical fiber interface 71 is restored after being disconnected, so that the power of the remote network device (ie, the first and second network surveillance cameras PD1, PD2) can be reset start up. Please refer to Figure 3, when the remote reset control flag PRRT is enabled, the steps of "a method for remote control using optical fiber signal and Ethernet power supply" provided by the present invention are:

Step 0 (S0): initialize the signal controller 2 and PoE function, go to step 1 (S1).

Step 1 (S1): Confirm whether a remote reset control flag PRRT in the signal controller 2 is enabled? If the remote reset control flag PRRT is not enabled, go to step 2 (S2), If the remote reset control flag PRRT is enabled, go to step 3 (S3).

Step 2 (S2): Enable the signal controller 2, and then enable the PoE function after 5 seconds, then go to Step 1 (S1).

Step 3 (S3): Confirm whether the photoelectric signal converter 11 receives a signal? If the photoelectric signal converter 11 receives a signal, go to step 4 (S4), if the photoelectric signal converter 11 does not receive a signal, go to Step 5 (S5). The photoelectric signal converter 11 can receive the optical signal transmitted from the Ethernet switch 70 via the optical fiber 12.

Step 4 (S4): Confirm whether the photoelectric signal converter 11 continues to receive signals for more than 3 seconds? If the photoelectric signal converter 11 continues to receive signals for more than 3 seconds, go to step 2 (S2), if the photoelectric signal converter 11 11 If the signal is not received continuously for more than 3 seconds, go to step 8 (S8).

Step 5 (S5): Confirm whether the photoelectric signal converter 11 continues to lose signal for more than 10 seconds? If the photoelectric signal converter 11 continues to lose signal for more than 10 seconds, go to step 6 (S6), if the photoelectric signal converter 11 receives When the signal does not continue to lose the signal for more than 10 seconds, go to step 4 (S4).

Step 6 (S6): Enable the signal controller 2, and then wait for 5 seconds, then go to Step 7 (S7).

Step 7 (S7): Confirm whether the photoelectric signal converter 11 continues to lose its signal? If the photoelectric signal converter 11 continues to lose its signal, go to step 5 (S5), if the photoelectric signal converter 11 does not continue to lose its signal, Go to step 2 (S2).

Step 8 (S8): Turn off the signal controller 2 and PoE function, and go to step 3 (S3).

Steps 0→1 in the above process can be regarded as the "initial stage"; the cycle of steps 1→2 in the above process can be regarded as the "phase without PRRT function and normal operation"; steps 1→3→4→2 in the above process The cycle can be regarded as "the stage with PRRT function and normal operation"; the cycle of steps 5→6→7 in the above process can be regarded as "the stage of shutting down the remote network equipment and waiting for the optical communication to resume", the steps in the above process The cycle of 3→5→4→8 can be regarded as "the stage of turning off the remote network equipment". For example: in normal operation, the above process is carried out in the "PRRT function and normal operation cycle" of step 1→3→4→2. At this time, if the user pulls out the optical fiber 12 from the optical fiber interface 71, the optical communication is cut off. Then, the process will now enter the step 3→5→4→8 "the stage of turning off the remote network device", at this time the remote network device will be turned off and powered off in step 8 (S8) , If the optical communication is cut off for more than 10 seconds, the process will be improved to step 5→6→7 "The remote network device has been turned off and waiting to resume the optical communication stage", at this time the remote network The device has been shut down and powered off in the previous step 8 (S8). After the user inserts the optical fiber 12 into the optical fiber interface 71 and restores optical communication, the process will now be improved to step 1→3→4→2 "PRRT function and normal operation cycle", and in step 2 (S2) The remote network device will be re-powered.

It is worth mentioning that in step 8 (S8), the remote network device is powered off, and in step 2 (S2), the power supply device (PSE) re-provides power to the remote network device , Therefore, the remote network device is restarted in step 2 (S2) in the manner of "power off and then power on again".

In summary, the "Using optical fiber signal and Ethernet power supply as a method and device for remote control" of the present invention can act as a relay between the Ethernet switch and the remote network equipment , So that the Ethernet switch can be connected to the remote network device, and can meet the dual requirements of power supply and data transmission of the remote network device. After four seconds, insert the optical fiber" to control the remote network equipment to restart the power supply, so that personnel do not need to go to the site of the remote network equipment to perform power-restart maintenance operations, so this can be achieved. The purpose of the invention.

1: "Using optical fiber signal and Ethernet power supply as a remote control device" 2: Signal controller 3: Digital power controller 4: Analog power controller 5: Network packet switching controller 6: Setting switch 7: The first isolation coil group 8: the second isolation coil group 9~10: the first and second connectors 11: a photoelectric signal converter 12: the optical fiber 41~46: the first to sixth voltage output terminals 70: Ethernet Switch 71: Optical fiber interface I ² C: A serial communication bus (Inter-Integrated Circuit) PRRT: Remote reset control flag Safe_PoE_Disable: Terminate power supply control flag PD1, PD2: First and second network surveillance cameras PSE: power supply device PD: for the powered device RJ45: a universal connector for Ethernet CAT5: a network transmission line for Ethernet TX1+, TX1-: the first pair of output differential signal terminals TX2+, TX2-: second For output differential signal terminals TX3+, TX3-: the third pair of output differential signal terminals TX4+, TX4-: the fourth pair of output differential signal terminals RX1+, RX1-: the first pair of input differential signal terminals RX2+, RX2-: the second pair of inputs Differential signal terminals RX3+, RX3-: the third pair of input differential signal terminals RX4+, RX4-: the fourth pair of input differential signal terminals V+, V-: DC high and low voltage

FIG. 1 is a circuit block diagram of the present invention "a device using optical fiber signal and Ethernet power supply as a remote control device". Figure 2 is a schematic diagram of the present invention "a device that uses optical fiber signals and Ethernet power supply as remote control" to connect to a network monitoring camera and an Ethernet switch. FIG. 3 is a flowchart of an embodiment of a method for remote control using optical fiber signal and Ethernet power supply according to the present invention.

1: Use optical fiber signal and Ethernet power supply as a remote control device

9: The first joint

10: Second connector

11: A photoelectric signal converter

12: Optical fiber

70: Ethernet switch

71: Optical fiber interface

PD1: The first network surveillance camera

PD2: The second network surveillance camera

Claims (8)

A device that uses optical fiber signals and Ethernet power supply as remote control includes: a power device that can output at least one set of DC voltage to at least one powered device via at least one network transmission line. When the power device receives a When the second reset signal, the power supply device is reset. When the power supply device is reset, the power supply device stops supplying power to the at least one powered device; a network packet switching controller can pass through the At least one network transmission line transmits and receives network packets to the at least one powered device, and when the network packet switching controller receives a first reset signal, the network packet switching controller resets; A photoelectric signal converter can receive an optical signal through an optical fiber, convert the optical signal into a digital electrical signal and output the digital electrical signal; a signal controller, which is electrically connected to the power supply device, can output to the power supply device A second reset signal; the signal controller is electrically connected to the network packet switching controller, and can output a first reset signal to the network packet switching controller; the signal controller is electrically connected to the photoelectric The signal converter can input the digital electrical signal from the photoelectric signal converter, and can determine whether the optical signal is interrupted according to the input digital electrical signal; wherein, when the signal controller determines that the optical signal is interrupted for more than a first time During a period of time, the signal controller sends out the first reset signal and the second reset signal to reset the network packet switching controller and the power device to stop the power device from supplying power to the at least one The power supply of the device, and when the reset is completed, the power supply of the power supply device to the at least one powered device is restored; wherein the first period of time is more than three seconds. The device for remote control using optical fiber signal and Ethernet power supply as described in claim 1, wherein the network packet switching controller further includes: a physical layer transceiver, including: Multiple output differential signal terminals; multiple input differential signal terminals. The device for remote control using optical fiber signal and Ethernet power supply as described in claim 2, further comprising: a plurality of isolated coil groups, wherein each isolated coil group has a first side and a second side, On the first side, each isolation coil group is electrically connected to the plurality of output differential signal terminals, and its exclusive corresponding output differential signal terminal and input differential signal terminal among the plurality of input differential signal terminals; multiple are identical and independent Each of the connectors is on the second side, and is electrically coupled to its exclusive corresponding isolation coil set and its exclusive corresponding output differential signal terminal and input differential signal terminal. The device for remote control using optical fiber signal and Ethernet power supply as described in claim 1, wherein the optical fiber connected to the photoelectric signal converter can be connected to an Ethernet switch, and the Ethernet The switch provides the optical signal to the optical signal converter via the optical fiber. The Ethernet switch has an optical fiber interface. When the optical fiber is inserted into the optical fiber interface, the optical signal converter can receive the optical signal from the Ethernet When the optical signal of the switch is pulled out of the optical fiber interface, the optical signal provided by the Ethernet switch cannot be transmitted to the photoelectric signal converter. The device that uses optical fiber signal and Ethernet power supply as remote control as described in claim 1, further includes a setting switch that can output multiple setting values, and the signal controller is electrically connected to the setting switch. The multiple setting values are input from the setting switch. A method of using optical fiber signal and Ethernet power supply as remote control is to use a power supply device to output at least one set of DC voltage to at least one powered device, and a photoelectric signal converter to receive an optical signal and a signal via an optical fiber The controller can output a second reset signal to the power supply device and can output a first reset signal to a network packet switching controller, and can input the digital electrical signal from the photoelectric signal converter and determine the optical signal accordingly. Whether the signal is interrupted; the "Using optical fiber signal and Ethernet power supply as a remote control method" further includes the following steps: S0: Initialize the signal controller and a Power over Ethernet (PoE) function, go to S1; S1: Confirm whether a remote reset function (PRRT) in the signal controller is enabled? If the remote reset function (PRRT) is not enabled, go to S2, if the remote reset function (PRRT) is enabled, go to S3; S2: enable the signal controller, after a first period of time Then enable the Power over Ethernet (PoE) function, go to S1; S3: Confirm whether the photoelectric signal converter receives the signal? If the photoelectric signal converter receives a signal, go to S4, if the photoelectric signal converter does not receive a signal, go to S5; where the photoelectric signal converter can receive the signal from the Ethernet switch via the optical fiber Optical signal; S4: Confirm whether the photoelectric signal converter continues to receive the signal for more than a second period of time? If the photoelectric signal converter continues to receive signals for more than the second time period, go to S2, if the photoelectric signal converter does not continue to receive signals for more than the second time period, go to S8; S5: confirm whether the photoelectric signal converter continues to lose The signal exceeds a third period? If the photoelectric signal converter continues to lose the signal for more than the third period, to S6, if the photoelectric signal converter receives the signal and does not continue to lose the signal for more than the third period, to S4; S6: enable the signal controller, then Wait a fourth period, to S7; S7: Confirm whether the photoelectric signal converter still loses signal continuously? If the photoelectric signal converter continues to lose the signal, go to S5, if the photoelectric signal converter does not continue to lose the signal, go to S2; S8: turn off the signal controller and the power over Ethernet function (PoE), and go to S3. The method for remote control using optical fiber signal and Ethernet power supply as described in claim 6, wherein the first time period is more than 5 seconds, the second time period is more than 3 seconds, and the third time period is more than 10 seconds , The fourth time period is more than 5 seconds. A network device powered by the device using optical fiber signal and Ethernet power supply as remote control as in claim 1, the network device and the device using optical fiber signal and Ethernet power supply as remote control device Connection, the use of optical fiber signal and Ethernet power supply as a remote control device Connect to an Ethernet switch via an optical fiber. When the network device needs to be reset, you can unplug the optical fiber from the Ethernet switch for a first period of time and then plug it back in. The effect of resetting the network device is achieved; wherein the first period of time is more than three seconds.

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