TWI670951B - Power backbone device and power backbone system based on power over ethernet - Google Patents

Abstract

A power supply backbone device based on Ethernet power supply includes a power backbone input port, a power receiving end chip, a data switch, a power converter, a power supply end chip, a power backbone output port, and a signal transmission port. The power receiving chip is electrically connected to the power backbone input port. The data exchange is electrically connected to the power receiving chip. The power converter is electrically connected to the power receiving port and the power receiving chip. The power supply chip is electrically connected to the data exchange and the power converter. The power backbone output port is electrically connected to the power supply chip. The signal transmission port is electrically connected to a power converter, a data switch or a power supply chip. In addition, several power supply backbone devices can also form a power supply backbone system. Thereby, this power supply backbone device can solve the problem of installation difficulty when it is applied to an environment where it is difficult to obtain a power source.

Description

Power supply backbone device and power supply backbone system based on Ethernet power supply

The invention relates to a network node device for transmitting power and data, especially a power supply backbone device powered by Ethernet, and a power supply backbone system including the power supply backbone device.

In the current power supply technology, Power over Ethernet technology is a power supply technology commonly used in the field of data transmission networks. The main reason is that a single cable can be used by the power supply technology of Ethernet The power signal and data signal are transmitted together, so the complexity of system wiring can be reduced.

However, due to the generally known one-to-one design of the Ethernet power supply system, that is, the power supply terminal (Power Source Equipment, PSE) and the power supply terminal (Powered Device, PD) are usually two separate devices. Therefore, compared with the multiple topologies of the standard Ethernet system, it is obviously monotonous and lacks convenience. The main reason for the investigation is that the conventional Ethernet power supply system can not carry enough power (Watt). The power of 15.4/30 watts will be attenuated after passing through the 100-meter network line, and the conventional The node device used in the Ethernet power supply system cannot provide external power supply. In addition, the power standard used by the conventional Ethernet power supply system is 48V/56V DC, which has a larger voltage difference than the 12/24V DC common in general industrial and commercial applications, which also causes certain convenience in use. limits. In addition, the conventional Ethernet power supply system usually does not provide a backup design, so when the power source is abnormal or the signal line is disconnected, it will cause at least a part of the entire system to be inoperable.

In view of this, the present invention proposes a power supply backbone device based on Ethernet power supply, thereby solving the problem of difficult installation in an environment where it is difficult to obtain a power source.

In addition, the present invention further proposes a backup power supply backbone device based on Ethernet power supply, thereby simultaneously solving the problem of disconnection when the power source is abnormal or the signal line is disconnected, and it is easy to achieve long-distance power supply and data transmission. purpose.

According to an embodiment of the present invention, a power supply backbone device based on Ethernet power supply includes: a power backbone input port, a power receiving end chip, a data switch, a power converter, a power supply end chip, a power backbone output port and a signal Transmission port. The power backbone input port is used to receive the first power signal and transmit the first data signal. The power receiving chip is electrically connected to the power backbone input port to receive the first power signal and transmit the first data signal from the power backbone input port. The data switch is electrically connected to the power receiving chip to transmit the first data signal with the power receiving chip. The power converter is electrically connected to the power receiving port and the power receiving chip. The power converter is used to selectively receive DC power from the power receiving port, to receive the first power signal from the power receiving chip and to generate the second power signal. The power supply chip is electrically connected to the data switch and the power converter, and is used for transmitting the second data signal with the data switch and for receiving the second power signal by the power converter. The power backbone output port is electrically connected to the power supply end chip, and is used to output a second power signal and transmit a second data signal. The signal transmission port is electrically connected to the power converter, the data switch or the power supply chip. The signal transmission port is used to output the third power signal from the power converter, or transmit the third data signal with the data switch, or output from the power supply chip The third power signal transmits the third data signal with the power supply chip.

According to an embodiment of the invention, a power supply backbone device based on Ethernet power supply, wherein the power backbone input port is the first power backbone input port, the power receiving chip is the first power receiving chip, and the power supply backbone device further includes: The second power backbone input port, the second power receiving end chip and the second power backbone output port. The second power backbone input port is used to receive another first power signal and transmit another first data signal. The second power receiving chip is electrically connected to the second power backbone input port, the power converter and the data switch, and the second power receiving chip receives another first power signal from the second power backbone input port and transmits another first data signal The power converter receives the other first power signal, and the data switch and the power receiving chip transmit the other first data signal. The second power backbone output port is electrically connected to the power supply chip for outputting another second power signal and transmitting another second data signal. The power converter generates the other second power signal and outputs the other power signal The second power signal is sent to the power supply chip, and the data switch and the power supply chip transmit the other second data signal.

According to an embodiment of the invention, a power supply backbone device based on Ethernet power supply, wherein the power supply backbone device further includes a monitoring device electrically connected to the first power receiving chip, the second power receiving chip, the power supply chip, and data exchange Power converter and power converter to control the power converter according to the two first power signals, the second second power signals, the third power signals and the DC power, and according to one of the two first data signals and the second second data signals One and the third data signal control the data exchange.

According to an embodiment of the present invention, a power supply backbone system based on Ethernet power supply includes a plurality of power supply backbone devices connected in series, and only one power receiving port of the power supply backbone device among the plurality of power supply backbone devices Receive DC power.

According to an embodiment of the present invention, a power supply backbone system based on Ethernet power supply includes a plurality of power supply backbone devices connected in series, and among the plurality of power supply backbone devices, there are multiple power receiving ports of the power supply backbone devices Receive corresponding multiple DC power.

According to an embodiment of the invention, a power supply backbone system based on Ethernet power supply includes a plurality of power supply backbone devices connected in series, and the first power supply backbone device and the end of the plurality of power supply backbone devices connected in series The power receiving ports of the power supply backbone devices respectively receive two DC powers.

According to an embodiment of the present invention, a power supply backbone system based on Ethernet power supply includes a plurality of power supply backbone devices connected in a ring, and only one power supply backbone device among the plurality of power supply backbone devices in a ring connection The power receiving port receives DC power.

With the above structure, the backbone power supply device based on Ethernet power supply disclosed in this case can transmit power signals and data signals at the same time, and the power converter can be used to form equipment with several power supply backbone devices. The effect of the power supply area. In addition, it is possible to realize a signal transmission system with both power and data dual transmission backup functions by multiple power supply backbone devices connected in series by adding a power backbone input port, a power receiving end chip and a power backbone output port to the power supply backbone device . Therefore, the power supply backbone device based on Ethernet power supply of the present invention can have the effect of reducing the installation difficulty and the installation complexity, and can moreover construct a double backup system for power and data at a relatively low installation cost.

The above description of the disclosure and the following description of the embodiments are used to demonstrate and explain the spirit and principle of the present invention, and provide a further explanation of the scope of the patent application of the present invention.

The following describes in detail the detailed features and advantages of the present invention in the embodiments. The content is sufficient for any person skilled in the relevant art to understand and implement the technical content of the present invention, and according to the contents disclosed in this specification, the scope of patent application and the drawings Anyone skilled in the relevant art can easily understand the purpose and advantages of the present invention. The following examples further illustrate the views of the present invention in detail, but do not limit the scope of the present invention in any way.

The power supply backbone device based on Ethernet power supply of the present invention is suitable for a system that requires both power and data transmission. It not only transmits power signals and data signals at the same time by the conventional Ethernet power supply technology, but also can Further, at least one power-free zone (PFZ) is formed in the system, and even a signal transmission system with dual functions of power and data transmission backup is formed. In particular, in order to allow multiple power supply backbone devices in the overall system to provide sufficient power to the connected peripheral devices, the power supply backbone device of the present invention is preferably based on the IEEE 802.3bt (type 3, available for transmission 60 watts of power) or IEEE 802.3 (type 4, which can transmit 90 watts of power) Ethernet power supply system. In addition, although the power supply backbone device in the embodiments of the present invention described below is presented in the form of a single device, in other embodiments, the power supply backbone device may also be presented integrated into a personal computer, a server host, or any Types in network related equipment.

Please refer to FIG. 1, which illustrates a power supply backbone device 1 based on Ethernet power supply according to a first embodiment of the present invention, wherein the power supply backbone device 1 includes at least a power backbone input port 11, a power receiving end chip 12, A data exchange 13, a power converter 14, a power supply chip 15, a power backbone output port 16 and a signal transmission port 17.

The power backbone input port 11 of the power supply backbone device 1 of the first embodiment is used to receive a first power signal and transmit a first data signal, and the power backbone input port 11 is preferably an RJ45 socket. That is to say, the power backbone input port 11 may be constituted by an Ethernet power transmission port, and the first power signal may be received from the outside of the power supply backbone device 1 using the Ethernet power supply technology, and at the same time the first The data signal, or output the first data signal from the power supply backbone device 1. However, the Ethernet-powered transmission port that constitutes the power backbone input port 11 needs to be able to support the transmission of higher-power electrical signals (eg, 60 watts or more).

The Powered Device IC (Powered Device IC) 12 is a control chip that supports Ethernet power supply technology and is suitable for the power receiving device, and the power receiving chip 12 is electrically connected to the power backbone input port 11 for input by the power backbone The port 11 receives the first power signal and transmits the first data signal with the power backbone transmission port 11, that is, the power backbone input port 11 receives the first data signal, or transmits the first data signal to the power backbone input port 11.

The data switch 13 of the power supply backbone device 1 of the first embodiment is electrically connected to the power receiving chip 12 so that the data switch 13 and the power receiving chip 12 transmit the first data signal. The data switch 13 is also electrically connected to the signal transmission port 17, wherein the detailed description of the signal transmission port 17 will be described in detail later. The data switch 13 is used as a data switching engine of the power supply backbone device 1 to integrate or transfer the data transmitted in the power supply backbone device 1.

Still referring to FIG. 1, the power converter 14 of the power supply backbone device 1 is electrically connected to the power receiving chip 12 and a power receiving port 18 to selectively receive the DC power from the power receiving port 18 and the power receiving chip 12 to receive the first An electric power signal and generating a second electric power signal. In detail, the power converter 14 is used as a DC/DC engine for supplying the backbone device 1, and may include a DC-DC converter and a boost converter ( Boost Converter) to reduce the DC voltage in the power supply backbone device 1 by the DC-DC converter, and/or boost the DC voltage in the power supply backbone device 1 by the boost converter, which can be provided The applicable power is used by peripheral devices of the power supply backbone device 1 and further supplies the remaining power to the power supply backbone device of the next stage. Since the power supply backbone device 1 is electrically connected to the power receiving terminal chip 12 and the power receiving port 18 at the same time, the power source of the power supply backbone device 1 itself and the power source generating the second power signal may be the DC power of the power receiving port 18, or may be The first power signal received through the power receiving chip 12 and the power backbone input port 11 is even obtained by integrating the DC power and the first power signal. In addition, the power receiving port 18 can be selected as a DC jack or a terminal block to connect with a general DC power source.

The power source equipment IC (Power Source Equipment IC) 15 is a control chip that supports Ethernet power supply technology and is suitable for power supply equipment, and the power supply chip 15 is electrically connected to the data switch 13 and the power converter 14, The power converter 14 receives the second power signal and transmits a second data signal with the data switch 13, that is, the second data signal is sent to the data switch 13 or the data switch 13 receives the second data signal . Although the number of power supply chip 15 shown in FIG. 1 is one, the number of power supply chip 15 can also be a plurality of power supply chips that provide multiple power output power signals (for example, a power signal of 15.4/30 watt and 60 watt The power signal is output by two different power supply chips), and each power supply chip is connected to the data switch 13 and the power converter 14.

A power backbone output port 16 of the power supply backbone device 1 is electrically connected to the power supply terminal chip 15 for outputting the second power signal to the aforementioned next-level power supply backbone device, and used to transmit second data with the next-level power supply backbone device Signal. Similarly, the power backbone output port 16 is preferably an RJ45 socket, and the power backbone output port 16 may also be composed of an Ethernet power transmission port to transmit the second power signal out of the power backbone through the Ethernet power supply technology The device 1 also receives the second data signal from the outside or outputs the second data signal from the power supply backbone device 1 at the same time. For the same reason, the Ethernet power transmission port that constitutes the power backbone output port 16 needs to support the transmission of higher-power electric signals (such as 60 watts or more).

Referring again to FIG. 1, the signal transmission port 17 of the first embodiment may refer to a data signal transmission channel of the power supply backbone device 1, or may refer to a power data output from the power supply backbone device 1 to a third power signal The transmission channel is even a channel similar to the power backbone output port 16 that can simultaneously output power signals and transmit data signals. The signal transmission port 17 is used to connect the power supply backbone device 1 and the aforementioned peripheral device, and the peripheral device may be, for example, an edge device (Edge Device, such as a sensor, an alarm, or a fan) or a camera. In detail, the signal transmission port 17 may be a general power output port electrically connected to the power converter 14 and used only to transmit power signals (such as a conventional DC power socket) to output the power converter 14 from the first power The signal and/or a third power signal generated by the DC power to the aforementioned peripheral device; the signal transmission port 17 may also be an Ethernet data transmission that is electrically connected to the data switch 13 and is only used to transmit the data signal Port for the data switch 13 to transmit a third data signal with peripheral devices through the signal transmission port 17; or, the signal transmission port 17 may be a general Ethernet power transmission port electrically connected to the power supply chip 15, In order to output another power signal generated by the power supply chip 15 (for convenience of subsequent description, the following is still referred to as the third power signal) to the peripheral device, and transmit another data signal with this peripheral device (for convenience of subsequent description, the following Still known as the third data signal). The third power signal mentioned above is used to provide power for peripheral devices to operate, and the third data signal is an actuation command (such as a command to control an alarm, fan, or camera) that is sent to the peripheral device. Or data output from peripheral devices (such as sensor sensing data or camera monitoring screen data). More specifically, although the power backbone input port 11, the power backbone output port 16, and the Ethernet-powered transmission port as the signal transmission port 17 are all Ethernet-powered transmission ports, they are still better in specifications The difference: the power backbone input port 11 and the power backbone output port 16 preferably use an Ethernet-powered transmission port that can transmit at least 60 watts of electricity; otherwise, an Ethernet-powered transmission port that serves as the signal transmission port 17 can It is only a general Ethernet power transmission port, and only transmits 30/15.4 watts of power. In addition, the data transmission port 17 can be implemented as a DC socket, terminal block, local area network (Local Area Network, LAN) connector or RJ45 socket, and the power supply backbone device 1 can also have multiple signal transmission ports 17, In order to connect the power supply backbone device 1 to multiple peripheral devices, or to the local area network and the Internet at the same time.

Please refer to FIG. 2, the power supply backbone device 1 of the first embodiment is mainly used for systems that require simultaneous power and data transmission (generally systems that are constructed with Ethernet power supply, such as monitoring systems), especially The power supply backbone device 1 can be regarded as a signal transmission node in this system, so as to supply power to other devices in the system and to transmit control commands or data. In detail, taking the application in a monitoring system as an example, as shown in FIG. 2, for two serially connected power supply backbone devices 1 (hereinafter referred to as a first-level power supply backbone device 1a and a second-level power supply backbone device 1b) It can be divided into the following two parts according to the data signal transmission and power signal transmission.

Please refer to FIG. 1 and FIG. 2 together. For the transmission of data signals, the first-stage power supply backbone device 1a can obtain control commands from the external local area network LAN through the signal transmission port 17 and use the data switch 13 to send the control commands It is transmitted to a camera D1 through the power supply chip 15 and another signal transmission port 17, or the control command is transmitted to the second-level power supply backbone device 1b through the power supply chip 15 and the power backbone output port 16 through the data switch 13. Conversely, the image data obtained by the camera D1 can be transmitted to the data switch 13 through the other signal transmission port 17 and the power supply chip 15 or the image data to be uploaded by the second-level power supply backbone device 1b can also be transmitted through the power backbone The output port 16 and the power supply chip 15 are transmitted to the data switch 13, and then the data switch 13 is output from the first-stage power supply backbone device 1a through the signal transmission port 17 connected to the local area network LAN. In other words, in this operation example, the first data signal refers to the control commands and image data transmitted by the power backbone input port 11 and the power receiving chip 12, and the second data signal refers to the output from the power supply chip 15 and the power backbone The control command and image data transmitted by the port 16 and the third data signal refer to the signal transmission port 17 connected to the camera D1 and the control command and image data transmitted by the camera D1. In addition, for the second-level power supply backbone device 1b, it is connected to the power backbone output port 16 of the first-level power supply backbone device 1a through its own power backbone input port 11 and RJ45 connection line, so the second-level power supply backbone device 1b is that its power backbone input port 11 receives control commands, which is different from the first-level power supply backbone device 1a receiving control commands through a signal transmission port 17 connected to a local area network LAN.

For the transmission of power signals, the first-stage power supply backbone device 1a can obtain DC power from an external DC power source through the power receiving port 18, and convert the DC power by the power converter 14 through the power supply chip 15 and a The signal transmission port 17 is transmitted to the camera D1 (the transmitted power is the aforementioned third power signal), or the DC power is converted by the power converter 14 and then transmitted to another end device D2 (the The transmitted power also belongs to the aforementioned third power signal), or the DC power can be transmitted by the power converter 14 to the second-level power supply backbone device 1b (ie, the second power signal) through the power supply chip 15 and the power backbone output port 16 ). The second power signal output by the first-level power supply backbone device 1a is the remaining power after the DC power is supplied to the first-level power supply backbone device 1a and the third power signal. In addition, for the second-level power supply backbone device 1b, it is connected to the power backbone output port 16 of the first-level power supply backbone device 1a through its own power backbone input port 11 and RJ45 connection line, so the second-level power supply backbone The device 1b receives power (ie, the first power signal) from the first-stage power supply backbone device 1a through its power backbone input port 11 for operation.

Please refer to FIG. 3, which illustrates a power supply backbone system including the power supply backbone device 1 of the first embodiment of the present invention, for users to connect multiple cameras in the monitoring system by serially connecting multiple power supply backbone devices 1 D1. Under normal circumstances, the power consumption of each power supply backbone device 1 is about 3 watts; if the RJ45 cable connected between any two power supply backbone devices 1 is 100 meters (100 meters is the power supply technology of Ethernet The maximum transmission distance is specified), the power consumption between any two power supply backbone devices 1 is about 3 watts; if the RJ45 cable connected between any power supply backbone device 1 and the corresponding camera D1 is also 100 meters, this The power consumption between the two is also about 3 watts; the power consumption of each camera D1 is about 7 watts; and when the power supply backbone device 1 receives a voltage of 12 to 58 volts from the power receiving port 18, the power backbone output port 16 output about 57 watts of electricity. It can be deduced from this that when the power supply backbone system of FIG. 3 is assembled by connecting multiple power supply backbone devices 1 in series, only a single DC power source needs to be provided in the installation environment. The power receiving port 18 is connected to a DC power source and at least 5 cameras D1 are installed. In other words, as shown in FIG. 3, with multiple power supply backbone devices 1 connected in series in this embodiment, a power-free zone (PFZ) including multiple power supply backbone devices 1 and multiple cameras D1 can be easily formed ) At the same time, the distance between the camera D1 and the power source can be extended, which greatly reduces the difficulty of installation in an environment where it is difficult to obtain the power source. Moreover, the power supply backbone device 1 of this embodiment is more capable for users to complete the wiring of data and power when installing the system, eliminating the trouble of the user having to configure the power source at the same time when setting up the system with a traditional device, so it is also significantly Reduced setting complexity. In addition, the camera shown in Figure 3 does not limit the peripheral devices that can be connected to this power supply backbone system. Users can also replace the camera D1 with sensors or alarms that support RJ45 cables, or connect to the power supply backbone through other signal transmission lines as needed. Device 1 and signal transmission port 17.

Please refer to FIG. 4, which is another power supply backbone system including the power supply backbone device 1 of the first embodiment of the present case. The power supply backbone device 1 is also available for users to connect and monitor by connecting multiple power supply backbone devices 1 in series At the same time as multiple cameras D1 in the system, the power receiving ports 18 of several power supply backbone devices 1 in these power supply backbone devices 1 are connected to the corresponding DC power sources according to requirements, so as to appropriately provide additional DC power to the power supply backbone system electric power. In detail, as shown in FIG. 4, multiple power supply backbone devices 1 connected in series can be divided into three power supply zones Z1, Z2, and Z3, and each power supply zone Z1-Z3 has multiple power supply backbone devices 1 connected in series. The last power supply backbone device 1 of the power supply zone Z1 is connected to the first power supply backbone device 1 of the power supply zone Z2, and the last power supply backbone device 1 of the power supply zone Z2 is connected to the first power supply backbone device 1 of the power supply zone Z3, and each power supply zone The first power supply backbone devices 1 of Z1-Z3 are connected to a DC power source. In this way, the total number of power supply backbone devices 1 connected in series can be further increased, or the number of cameras D1 that can be connected and powered by a single power supply backbone device 1 can be increased.

Please refer to FIG. 5, which illustrates a power supply backbone device 2 based on Ethernet power supply according to a second embodiment of the present invention. Compared with the power supply backbone device 1 of the foregoing first embodiment, the power supply backbone device 2 of the second embodiment includes the same power backbone input port 21, power receiving end chip 22, and data exchange 23 as the components of the power supply backbone device 1 , Power converter 24, power supply end chip 25, power backbone output port 26 and signal transmission port 27, the power supply backbone device 2 further includes another power backbone input port 21', another power receiving end chip 22', another power supply Terminal chip 25', another power backbone output port 26' and a monitoring device 29.

The power backbone input port 21' of the power supply backbone device 2 of the second embodiment is used to receive another first power signal and transmit another first data signal; the power receiving chip 22' is electrically connected to the second power backbone input port 21′, to receive the other first power signal and the other first data signal from the second power backbone input port 21′; the power supply chip 25′ is electrically connected to the power converter 24 and the data switch 25. The power converter 24 receives another second power signal and transmits another second data signal with the data switch 25; the power backbone output port 26' is electrically connected to the power supply chip 25' for outputting the Another second power signal and transmitting the other second data signal. In detail, the power backbone input port 21', the power receiving terminal chip 22', the power supply terminal chip 25', and the power backbone output port 26' are used to implement the transmission backup function for the system provided with the power supply backbone device 2 of this embodiment . Thereby, the power supply backbone device 2 can not only provide operating power and transmit data to the power supply backbone device 2 of the next stage through the power supply terminal chip 25 and the power backbone output port 26, but also connect the power supply backbone port of the next stage to the power supply backbone port 21' In the case of the power backbone output port 26' of the device 2, the power backbone device 2 of the next stage receives operating power and transmits data through the power backbone input port 21' and the power receiving end chip 22'.

The monitoring device 29 of the power supply backbone device 2 of this embodiment is electrically connected to the data switch 23 and the power converter 24, so as to collect the aforementioned two first power signals, two second power signals, third power signals and the DC power Information, as well as collecting the information of the aforementioned second first data signal, second second data signal and third data signal, and according to the mentioned second first power signal, second second power signal, third power signal and DC power The power converter 24 is controlled, and the data switch 23 is controlled according to one of the two first data signals, one of the two second data signals, and the third data signal. The monitoring device 29 can further set the data switch 23 not to be transmitted by the power backbone input port 21' and the power backbone output port 22' when multiple power supply backbone devices 2 in the system are connected to each other to form a data transmission ring network The aforementioned another first data signal and the aforementioned another second data signal are only transmitted when the first data signal cannot be transmitted by the power backbone input port 21 or the second data signal is transmitted by the power backbone output port 22 The power backbone input port 21' and the power backbone output port 22' perform data transmission, thereby avoiding broadcast storms that often occur in ring networks. The management software of the monitoring device 29 can simultaneously monitor the power and data signals for recording and control, and the software part can be implemented using conventional network management protocols, such as Simple Network Management Protocol (SNMP) ) And/or Energy Management System (Energy Management System), however, the software implementation of the monitoring device 29 is not limited to this.

In detail, the monitoring device 29 of this embodiment is composed of a collection of electronic components with computing and storage functions. For example, it may include a central processing unit (CPU) and a memory. The monitoring device 29 is used to plan and manage the power signal output by the power supply backbone device 2 at the power backbone output ports 26, 26' and the signal transmission port 27 and the flow of the data signal transmitted, and to determine the power signal and The transmission direction of the data signal can even monitor the security of power transmission and data transmission based on the information obtained by the data exchange 23 and the power converter 24, such as disconnecting the power signal of the signal transmission port 27 when it is judged necessary Transmission or prohibition of data output from the signal transmission port 27.

Please refer to FIG. 6, which illustrates a power supply backbone system including the power supply backbone device 2 of the second embodiment of the present case. Although the power supply backbone device 2 of this embodiment can also be used in a system having the connection mode as shown in FIGS. 3 and 4, compared to the power supply backbone device 1 of the first embodiment, the power supply backbone device 2 of this embodiment is Furthermore, an Ethernet power supply system with power and data backup functions can be formed by the connection method shown in FIG. 6. Please refer to FIG. 5 and FIG. 6 together. In the power supply backbone system depicted in FIG. 6, among the several power supply backbone devices 2 connected in series, the power receiving ports 18 of the first and last power supply backbone devices 2 are respectively connected To two DC power sources, so that an abnormality occurs in either DC power source, or an RJ45 connection line between any two power supply backbone devices 2 (such as the power backbone output port 26 and power supply connected to the power supply backbone device 2a in FIG. 6 When the RJ45 connection line between the power backbone input ports 21 of the backbone device 2b is disconnected, there is still another power supply path (such as the power backbone output port 26' connected to the power supply backbone device 2c and the power supply backbone device 2b in FIG. 6). The RJ45 connection cable between the power backbone input ports 21') can maintain the normal operation of the power supply backbone devices in the system. Similarly, in terms of data transmission, since there are two RJ45 connecting wires between any two power supply backbone devices 2, when any one of the RJ45 connecting wires is disconnected, there is still another RJ45 connecting wire available for data transmission. In addition, in order to reduce the amount of data calculation and power consumption, with the power supply backbone device 2 provided with the monitoring device 29, only one of the two RJ45 connecting lines may be set in advance for data transmission. In addition, the first power supply backbone device 2 can also be connected to a computer C through the signal transmission port 17 for the computer C to display the data returned from the peripheral devices in the system to the first power supply backbone device 2, such as the sensor's sense Measurement data, the operating status of the fan or the monitoring screen data of the camera. In addition, since the data signal between any two power supply backbone devices 2 in this power supply backbone system will be transmitted cyclically, any one or all of these power supply backbone devices 2 must have a monitoring device 29 to avoid generation in the system Broadcast storm.

Please refer to FIG. 7, another power supply backbone system including the power supply backbone device 2 of the second embodiment of the present invention is to configure a plurality of power supply backbone devices 2 to be connected in a ring, not only can still form a power and data backup function B An Ethernet power supply system, and it is only necessary to connect the power port 18 of one of the power supply backbone devices 2 to a DC power source to provide operating power for the entire system.

In summary, the power supply backbone devices based on the Ethernet power supply disclosed in the embodiments of the present invention can simultaneously transmit power signals and data signals, and can be provided with several power supply backbones by the power converters provided therein. The device constitutes the effect of no power supply area. In addition, it is possible to realize a signal transmission system with both power and data dual transmission backup functions by multiple power supply backbone devices connected in series by adding a power backbone input port, a power receiving end chip and a power backbone output port to the power supply backbone device . Therefore, the power supply backbone device based on Ethernet power supply of the present invention can have the effect of reducing the installation difficulty and the installation complexity, and can moreover construct a double backup system for power and data at a relatively low installation cost.

Although the present invention is disclosed as the foregoing embodiments, it is not intended to limit the present invention. Without departing from the spirit and scope of the present invention, all modifications and retouching are within the scope of the patent protection of the present invention. For the protection scope defined by the present invention, please refer to the attached patent application scope.

1‧‧‧Power supply backbone device

1a‧‧‧First-level power supply backbone device

1b‧‧‧second-level power supply backbone device

11‧‧‧Power backbone input port

12‧‧‧ Receiver chip

13‧‧‧Data Exchanger

14‧‧‧Power converter

15‧‧‧Power supply chip

16‧‧‧Power backbone output port

17‧‧‧Signal transmission port

18‧‧‧Electricity receiving port

2‧‧‧Power supply backbone device

21‧‧‧Power backbone input port

21’‧‧‧Power backbone input port

22‧‧‧ Receiver chip

22’‧‧‧ Receiver chip

23‧‧‧Data Exchanger

24‧‧‧Power converter

25‧‧‧Power supply chip

25’‧‧‧Power supply chip

26‧‧‧Power backbone output port

26’‧‧‧Power backbone output port

27‧‧‧Signal transmission port

28‧‧‧Electricity receiving port

29‧‧‧Monitoring device

C‧‧‧Computer

D1‧‧‧Camera

D2‧‧‧End device

LAN‧‧‧Local Area Network

PFZ‧‧‧no power supply zone

FIG. 1 is a schematic structural diagram of a power supply backbone device based on Ethernet power supply according to a first embodiment of the present invention. FIG. 2 is an application schematic diagram of a power supply backbone device based on Ethernet power supply according to the first embodiment of the present invention. 3 is a schematic structural diagram of a power supply backbone system formed by a power supply backbone device powered by Ethernet according to the first embodiment of the present invention. 4 is a schematic structural diagram of another power supply backbone system formed by a power supply backbone device powered by Ethernet according to the first embodiment of the present invention. FIG. 5 is a schematic structural diagram of a power supply backbone device based on Ethernet power supply according to a second embodiment of the present invention. 6 is a schematic structural diagram of a power supply backbone system formed by a power supply backbone device powered by Ethernet according to a second embodiment of the present invention. 7 is a schematic structural diagram of another power supply backbone system formed by a power supply backbone device powered by Ethernet according to a second embodiment of the present invention.

Claims (10)

A power supply backbone device based on Ethernet power supply includes: a power backbone input port for receiving a first power signal and transmitting a first data signal; a power receiving chip electrically connected to the power backbone input port, The power backbone input port receives the first power signal and transmits the first data signal; a data switch is electrically connected to the power receiving chip to transmit the first data signal with the power receiving chip; a power conversion Device, electrically connected to a power receiving port and the power receiving chip, the power converter selectively receives DC power from the power receiving port, receives the first power signal from the power receiving chip and generates a second power signal A power supply chip, electrically connected to the data switch and the power converter, the power supply chip and the data switch transmit a second data signal, and the power converter receives the second power signal; a power The backbone output port is electrically connected to the power supply terminal chip, the power backbone output port outputs the second power signal and transmits the second data signal; and a signal transmission port is electrically connected to the power converter, the data switch or The power supply chip, the signal transmission port outputs a third power signal from the power converter, or transmits a third data signal with the data switch, or outputs the third power signal from the power supply chip and the power supply The terminal chip transmits the third data signal. The power supply backbone device based on Ethernet power supply according to claim 1, wherein the power backbone input port is a first power backbone input port, the power receiving end chip is a first power receiving end chip, and the power backbone output port It is a first power backbone output port. The power supply terminal chip is a first power supply terminal chip. The power supply backbone device further includes: a second power backbone input port for receiving another first power signal and transmitting another first power signal A data signal; a second power receiving chip, electrically connected to the second power backbone input port, the power converter and the data switch, the second power receiving chip receives the other from the second power backbone input port A first power signal and transmit the other first data signal, the power converter receives the other first power signal, the data switch and the second power receiving chip transmit the other first data signal; a second The power supply chip is electrically connected to the data switch and the power converter, the second power supply chip and the data switch transmit another second data signal, and the power converter receives the generated data from the power converter Another second power signal; a second power backbone output port, electrically connected to the second power supply chip for outputting the other second power signal and transmitting the other second data signal; and a monitoring device, Electrically connect the data converter and the power converter to operate the power converter according to the two first power signals, the two second power signals, the third power signal and the DC power, and according to the two first One of the data signals, one of the two second data signals and the third data signal control the data switch. The power supply backbone device based on Ethernet power supply according to claim 1, wherein the power converter includes a DC-DC converter and a boost converter. The power supply backbone device based on Ethernet power supply according to claim 1, wherein the signal transmission port is electrically connected to the power converter, and the signal transmission port is a power output port. The power supply backbone device based on Ethernet power supply according to claim 1, wherein the signal transmission port is electrically connected to the data switch, and the signal transmission port is an Ethernet data transmission port. The power supply backbone device based on Ethernet power supply according to claim 1, wherein the signal transmission port is electrically connected to the power supply chip and the signal transmission port is an Ethernet power transmission port. A power supply backbone system based on Ethernet power supply, including a plurality of power supply backbone devices, and each of these power supply backbone devices is the power supply backbone device based on Ethernet power supply as described in claim 1, wherein these The power supply backbone devices are connected in series, and the power receiving port of only one power supply backbone device among the power supply backbone devices receives DC power. A power supply backbone system based on Ethernet power supply, including a plurality of power supply backbone devices, and each of these power supply backbone devices is the power supply backbone device based on Ethernet power supply as described in claim 1, wherein these The power supply backbone devices are connected in series, and the power receiving ports of the power supply backbone devices among the power supply backbone devices receive corresponding multiple DC powers. A power supply backbone system based on Ethernet power supply, including a plurality of power supply backbone devices, and each of these power supply backbone devices is a power supply backbone device based on Ethernet power supply as described in claim 2, wherein these The power supply backbone devices are connected in series, and the power receiving ports of the first power supply backbone device and the last power supply backbone device among the series connected power supply backbone devices respectively receive two DC powers. A power supply backbone system based on Ethernet power supply, including a plurality of power supply backbone devices, and each of these power supply backbone devices is a power supply backbone device based on Ethernet power supply as described in claim 2, wherein these The power supply backbone devices are connected in a ring, and the power receiving port of only one power supply backbone device among the ring-connected power supply backbone devices receives DC power.