TWI713324B - Method and apparatus for power over ether control system - Google Patents

Abstract

An Ethernet power supply control system and method thereof, which set a plurality of user terminal devices connected in series with an Ethernet power switch as a primary user terminal device and at least one secondary user terminal device, which serves as an Ethernet power supply After the switch is powered, the user terminal device determines that it is the primary/secondary user terminal device and determines a routing mode accordingly. If the main user terminal device, the routing mode is the network address conversion routing mode, and the IP address is provided to Subsequent to other secondary user terminal equipment connected in series, calculate and manage the best power supply mode to supply power to an external device according to the setting or schedule. If it is secondary user terminal equipment, the routing mode is switching or bridge mode to receive the main user terminal The IP address transmitted by the device and managed. The invention provides multi-layer power supply, and can prevent the power consumption from exceeding the supply amount, causing the entire circuit to be powered off.

Description

Ethernet power supply control system and method

The present invention relates to an Ethernet power supply design, in particular to an Ethernet power supply control system and method.

By the way, many items and devices in life need electricity to operate, so power cords and power holes are required. If there are signal transmission functions, such as the opening and closing of control devices, signal lines and transmission ports are also required. Power over Ethernet (POE) can simultaneously output power and data signals through twisted pair cables, eliminating the need for traditional equipment to configure power cords, power holes, signal lines, and data ports at the same time, which not only saves configuration time And cost, but also reduce the difficulty of installing network equipment.

Figure 1 shows a current mechanism for supplying remote equipment using Ethernet power supply. A complete Ethernet power supply system 10 includes a power supply device (PSE) 12 and a power device (PD) 14 , Where the power supply device 12 has a plurality of connection ports, which can connect multiple power receiving devices 14 at the same time. With the improvement of Ethernet standards, the wattage that can be supplied has also increased to 60 watts or even more than 100 watts. At the same time, as the energy consumption of energy-saving lamps gradually decreases, the wattage consumed by the same brightness decreases, so the power line There is no need to use high current-resistant copper cables in the layout, so the use of twisted-pair cables above Cat.5e (Twisted-pair) is also an option for the use of lamp power supplies. However, there are restrictions on its use, that is, the power supply design will be limited to the 100-meter limit of the Ethernet twisted pair. Therefore, it can only be a single-layer structure as shown in Figure 1, and cannot be A plurality of power receiving devices 14 are connected in series with each other.

In view of this, the present invention proposes an Ethernet power supply control system and method to effectively solve the above-mentioned problems. The specific structure and implementation methods will be described in detail below:

The main purpose of the present invention is to provide an Ethernet power supply control system and method, which use Ethernet to supply power to the external devices (such as lamps) of each user terminal device, and each user terminal device is connected in series It is connected to the Ethernet power switch, and the user terminal equipment is set to the main power supply mode or the auxiliary power supply mode, which can receive and supply power at the same time to provide a multi-layer power supply mode.

Another object of the present invention is to provide an Ethernet power supply control system and method, wherein the external device connected to the secondary user terminal device is controlled by the main user terminal device responsible for management. After the external device receives power, it still needs Waiting for instructions from the main user terminal device so that the main user terminal device can control and manage the total power consumption to the greatest extent, so as to avoid the power consumption exceeding the power provided by the Ethernet power switch, causing the entire circuit to be disconnected Electricity.

Another object of the present invention is to provide an Ethernet power supply control system and method, which includes a variety of setting methods, including the unified management of all user terminal devices in the entire loop at the main user terminal device and the use of virtual servers Directly set up a single secondary user terminal device, conduct centralized management through Smart Discovery, and send group control signals through Smart Discovery.

To achieve the above objective, the present invention provides an Ethernet power supply control system, which includes an Ethernet power switch and a plurality of user terminal devices connected in series thereafter, and the user terminal devices are connected in series. It includes: at least one power receiving port, which is electrically connected to the Ethernet power switch or the user terminal device on the upper layer, to obtain power supply and transmit packets; an output and input interface, which receives a power supply mode set from the outside , Including a main power supply mode or a secondary power supply mode; a control unit connected to the output and input interface, and determines a routing mode according to the power supply mode to receive an IP address or provide an IP address to other user terminal devices connected in series; at least one The power supply port is electrically connected to the user terminal device of the next layer to provide power to other user terminal devices connected in series and transmit packets; and wherein, when the power supply mode is the main power supply mode, the control unit sets the routing mode In the Network Address Translate Router (NAT Router) mode, it provides an IP address to other user terminal equipment connected in series, calculates and manages the best power supply method, and performs management on an external device according to the setting or schedule Power supply, when the power supply mode is the secondary power supply mode, the routing mode of the control unit is Switch mode or Bridge mode, and receive the IP bit transmitted by the user terminal equipment set to the upper layer of the main power supply mode Site and accept management.

According to the embodiment of the present invention, it further includes at least one switch processing unit electrically connected to the power receiving port and the power supply port to transmit packets.

According to an embodiment of the present invention, in the main power supply mode, the control unit sets the power receiving port as the DHCP client of the wide area network (WAN), and sets the power supply port as the DHCP server of the local area network (LAN)器端. In the secondary power supply mode, the control unit sets the power receiving port and the power supply port as the DHCP client of the local network.

According to an embodiment of the present invention, the input/output interface includes an input finger, when it is in the off state, the main power supply mode, and when the input finger is in the on state, it is the secondary power supply mode.

According to the embodiment of the present invention, it further includes a lamp power module electrically connected to the control unit, the external device is a lamp, and is connected to the user terminal device through the lamp power module, and the lamp power module transmits a control signal Give the light fixture. The activation setting of the external device is sent by the user terminal device with the main power supply mode to send the control signal, or a manager sends the control signal through a virtual server, and sends the control signal through the input/output interface To the lamp power module.

According to the embodiment of the present invention, it further includes a redundant external power connection port electrically connected to the control unit for providing an external power source.

According to the embodiment of the present invention, it further includes a power management unit electrically connected to the power receiving port, the power supply port, and the control unit for receiving power from the power receiving port and providing the low voltage required by the control unit , And supply power to other user terminal equipment connected in series through the power supply port.

The present invention also provides an Ethernet power supply control method, which includes an Ethernet power switch and a plurality of user terminal devices connected in series thereafter, and the user terminal devices are connected in series. The control method includes the following steps: The user terminal equipment connected to the Ethernet power switch is set to a main power supply mode and a main user terminal device, and the remaining user terminal equipment connected in series to the main user terminal device is set to a power supply mode At least one secondary user terminal device; after the Ethernet power switch is powered, a control unit of the user terminal devices determines whether it is the primary user terminal device or the secondary user terminal device according to a power supply mode set by an output and input interface User terminal equipment, and determine a routing mode according to the power supply mode to receive IP addresses or provide IP addresses to other user terminal equipment connected in series; and if the user terminal equipment is the main user terminal equipment, the control unit Set a routing mode to Network Address Translate Router (NAT Router) mode, provide an IP address to other secondary user terminal devices connected in series, calculate the best power supply mode and manage it, according to the setting or routing The process supplies power to an external device. If the user terminal device is a secondary user terminal device, the routing mode of the control unit is Switch mode or Bridge mode, and receives the upper layer of the main user terminal device. IP address and accept management.

According to the embodiment of the present invention, the method further includes the following steps: After the primary user terminal device obtains the power provided by the Ethernet power switch, it periodically searches for whether there is at least one secondary user terminal device by smart discovery If there is, provide power and provide the IP address by DHCP; after the secondary user terminal device obtains the IP address, it sends back a notification message to the primary user terminal device through smart search, and the notification message includes the obtained IP address, Media Access Control Address (MAC), device name and type, required power supply wattage parameters, current lamp status, current lamp power consumption, etc.; and the main user terminal equipment It includes a DHCP table. After receiving the notification message returned by the secondary user terminal device, it compares whether the content of the notification message matches the DHCP table. If they all match, the primary user terminal device uses the secondary user terminal The equipment is stored in parallel.

According to an embodiment of the present invention, after the primary user terminal device manages the secondary user terminal device, it automatically opens a virtual server (Virtual Server) function, and adds a virtual port for including but not limited to using web pages ( Web; port 80) management.

According to an embodiment of the present invention, the notification message further includes the power consumption wattage of the secondary user terminal device for the main user terminal device to manage.

Furthermore, the process of power management of the main user terminal device further includes the following steps: after the control unit is powered on, it turns on the DHCP server, intelligent search packet service, Simple Network Management Protocol (SNMP), Packet protocols such as CGI/XML; From the upper layer of the Ethernet power switch, set the maximum power consumption of one of the overall circuits according to the connection status; enter the detection mode and scan mode, and find the jurisdiction by smart search And obtain the notification message; and record and calculate the power consumption, the maximum possible wattage, and the power consumption of all the auxiliary user terminal equipment under the control of the Ethernet power switch. The maximum wattage that can be obtained.

10: Ethernet power supply system

12: Power supply device

14: Power receiving device

20: Ethernet power supply control system

22: Ethernet power switch

24, 24a, 24b, 24c: user terminal equipment

241: Power receiving port

242: control unit

243: Power supply port

244: Input and output interface

245: Switch Processing Unit

246: Lamp Power Module

247: Power Management Unit

248: Redundant external power port

26: External device

30: Upper level equipment

32: Next layer equipment

Figure 1 is the architecture diagram of the Ethernet power supply system in the prior art.

Figure 2 is the architecture diagram of the Ethernet power supply control system of the present invention.

Figure 3 is a structural diagram of an embodiment of the Ethernet power supply control system of the present invention.

Figure 4 is a block diagram of user terminal equipment in the Ethernet power supply control system of the present invention.

Figure 5 is a flow chart of the Ethernet power supply control method of the present invention.

The present invention provides an Ethernet power supply control system and method. Please refer to Fig. 2, which is a structural diagram of the Ethernet power supply control system of the present invention. The Ethernet power supply control system 20 includes an Ethernet The network power switch 22 and a plurality of user terminal devices 24 are connected in series thereafter, and the user terminal devices 24 can be connected in series to form a multi-layer power supply circuit.

Taking Figure 3 as an example, in this Ethernet power supply control system 20, in addition to the Ethernet power switch 22, there are three user terminal devices 24 connected in series, and each user terminal device 24 is connected. An external device 26, such as a lamp, and the external device 26 is powered by the user terminal device 24. The power source of each user terminal device 24 is the user terminal device 24 or the Ethernet power switch 22 on the upper layer. The user terminal device 22a is powered by the Ethernet power switch 22, and the user terminal device 22b is powered by the user terminal The device 22a is powered, and the user terminal device 22c is powered by the user terminal device 22b. In the present invention, these powered user terminal devices 22 are divided into two power supply modes, namely a master mode and a slave mode, and the user terminal device 22 is set to be based on the difference in power supply mode Primary user terminal equipment and secondary user terminal equipment, where the primary user terminal equipment is the user terminal equipment of the first layer in the loop of the Ethernet power supply control system 20, namely the user terminal equipment 24a, which is used to manage the secondary users of the lower layers Terminal equipment 24b, 24c.

Please refer to FIG. 4 for the internal block diagram of the user terminal equipment, which includes at least one power receiving port 241, a control unit 242, at least one power supply port 243, and an input/output interface 244. Among them, the power receiving port 241 is a singular or plural IEEE8023.bt or above protocol power receiving network port, which is electrically connected to the upper layer device 30. The upper layer device 30 can be the Ethernet power switch shown in Figure 3. 22 or the user terminal equipment 24 of the upper layer to obtain power supply and transmit packets; the input/output interface 244 is electrically connected to the control unit 242, and receives a power supply mode set from the outside, including the main power supply mode or the auxiliary power supply mode; the control unit 242 is a central processing unit or a microprocessor, which is electrically connected to the input/output interface 244, the lamp power supply module 246, the power management unit 247 and the redundant external power connection port 248, and first determines a power supply mode according to the input/output interface 244 The routing mode is used to determine whether to receive an IP address or provide an IP address to other user terminal equipment connected in series; the power supply port 243 is a singular or plural IEEE8023.bt or above protocol power supply network port, which is electrically connected to the next layer equipment 32, this The next layer device 32 is the user terminal device 24b, 24c or lower layer in Figure 3, which is used to provide power to other user terminal devices connected in series and transmit packets.

The input/output interface 244 includes an input finger, when it is in the off state, the main power supply mode, and when the input finger is in the on state, it is the secondary power supply mode. The control unit 242 determines whether the user terminal device 24 is in the role of an administrator (primary user terminal device in the main power supply mode) or the role of a managed person (secondary user terminal device in the secondary power supply mode) according to the setting of the power supply mode. When the power supply mode is the main power supply mode, the control unit 242 sets the routing mode to the Network Address Translate Router (NAT Router) mode, and activates the DHCP server to provide the IP address of the subsequent secondary user terminal equipment and activate it. Virtual Server mode provides the ability to directly control the Ethernet power switch, activates the PLANET Smart Discovery protocol for the ability to be directly controlled by the main user terminal device, etc., and calculates the best power supply method And manage to supply power to the external device 26 according to the setting or schedule; and when the power supply mode is the secondary power supply mode, the routing mode of the control unit 242 is Switch mode or Bridge mode, and the user terminal equipment 24 is also a DHCP client, which receives the IP address sent by the main user terminal device set to the main power supply mode, and then receives the power-on, power-off or other management of the lamp through the management command of PLANET intelligent search or the command of SNMP MIB.

Therefore, in the main power supply mode, the control unit 242 will set the power receiving port 241 as the DHCP client of the wide area network (WAN) and the power supply port 243 as the DHCP server of the local area network (LAN). In the secondary power supply mode, the control unit 242 sets the power receiving port 241 and the power supply port 243 as the DHCP client of the local network.

The power receiving port 241 uses the same network segment as the administrator, and is directly controlled by the administrator. The administrator can use the web browser, PLANET smart search, RESTful or XML to perform this main power supply mode user terminal The control of the device 24 and the routing function is provided through the characteristics of the network address translation router (NAT Router), without all the secondary user terminal devices connected in the back-end being transparently handed over to the administrator for individual management. Therefore, the administrator can issue a similar command: " Slave 01 and Slave 02 POE lamps (power) behind Master 01 are all turned on. " Assuming that this machine is the main user terminal device in the main power supply mode, when the power receiving port 241 receives this When ordering, the control unit 242 can forward the order to the next-level equipment 32 connected in series to receive related instructions, including turning on and off the power of the lamp, but not limited to this. Furthermore, it can be matched with output and input through smart search or other instructions. The output interface of the interface 244 can be used for dimming or changing different colors.

The user terminal device 24 further includes a switch processing unit 245, a lamp power module 246, a power management unit 247, and a redundant external power connection port 248. The switch processing unit 245 is electrically connected to the power receiving port 241 And the power supply connection port 243 for transmitting packets; the lamp power module 246 is electrically connected to the control unit 242, and the external device 26 is connected to the user terminal equipment 24 through the lamp power module 246. If the external device 26 is a lamp, the lamp power The module 246 transmits a control signal to the lamp, and provides the power required to turn on the lamp. The control signal includes an emergency stop signal, timing on and off or preset schedule. The actuation setting of the external device 26 is sent by a user terminal device with a main power supply mode to send a control signal, or a manager sends a control signal through a virtual server, and sends the control signal to the lamp power module through the input/output interface 244 246. The power management unit 247 is electrically connected to the power receiving port 241, the control unit 242, and the power supply port 243 for receiving power from the power receiving port 241 and then providing the low voltage required by the control unit 242, and then supplying power to the follow-up Other user terminal equipment connected in series. The redundant external power connection port 248 is electrically connected to the control unit 242 and the power management unit 247 to provide an external power source for emergency needs.

Figure 5 is a flowchart of the Ethernet power supply control method of the present invention. First, in step S10, the user terminal device connected to the Ethernet power switch is set as the main user terminal device in the main power supply mode, and Set the rest after the main user terminal equipment in series to the secondary user terminal equipment of the secondary power supply mode. This setting method is to input the power supply mode setting from the output and input interface of each user terminal device; step S12, when the Ethernet power supply After the switch is powered, the control unit of the user terminal equipment will determine whether it is the primary user terminal equipment or the secondary user terminal equipment according to the power supply mode set by its own output and input interface, and determine a routing mode according to the power supply mode to receive IP address or provide IP address to other user terminal equipment connected in series; if the user terminal equipment is the main user terminal equipment, as described in step S14, the control unit sets a routing mode as Network Address Conversion Routing Translate Router, NAT Router) mode, provides IP address to other secondary user terminal equipment connected in series, calculates and manages the best power supply mode, and powers an external device according to the setting or schedule; if the user terminal equipment is the secondary user In the case of terminal equipment, as described in step S16, the routing mode of the control unit is Switch mode or Bridge mode, and receives the IP address transmitted by the upper master user terminal equipment and accepts management.

Furthermore, when the main user terminal device obtains the power provided by the Ethernet power switch, it will periodically use smart discovery to search for at least one packet of the user terminal device, and if so, provide power The IP address is provided by DHCP; and when the secondary user terminal device obtains the IP address, it will also send a notification message to the primary user terminal device through a smart search. This notification message includes the obtained IP address and media access Control address (Media Access Control Address, MAC), device name and type, required power supply wattage parameters, current lamp status, current lamp power consumption and other information; since the main user terminal device includes a DHCP table, When the primary user terminal device receives the notification message sent by the secondary user terminal device, it will The content of the information is compared with the DHCP table to determine whether the media access control address and IP address match, and whether the device attributes in the smart search packet are recognized attributes. If they match, the primary user terminal device will determine whether the secondary user The terminal equipment is stored in parallel.

Continuing from the previous paragraph, when the primary user terminal device manages the secondary user terminal device, a virtual server (Virtual Server) function is automatically enabled, and a virtual port is added to include but not limited to the use of web pages (Web; port 80) management. For example, if the IP address of the primary user terminal device A is 172.1.1.20, the secondary user terminal device B obtains the IP address of a local area network terminal by DHCP from the user terminal device A, which is 192.168.0.31, the administrator The web address management method is http://IP:Port . For example, the URL of the main user terminal device A is http://172.1.1.20:30, and the port number 30 represents the port of the main user terminal device A, and the secondary The URL of user terminal device B is http://172.1.1.20: 31 , and the port number 31 represents the port of secondary user terminal device B. In other words, if there are other secondary user terminal devices C, D, E... , The port number will be 32, 33, 34... and so on. At the same time, because the information of the secondary user terminal devices B, C... has been recorded on the primary user terminal device A, when the administrator uses the WAN IP without adding a port number, the administrator can log on the primary user terminal device A You can see all the information of A, B, and C on the management webpage of. For example, http://172.1.1.20 can manage all the secondary user terminal devices under the IP address 172.1.1.20. Similarly, in this way, the administrator can directly go to the main user terminal device A to manage the user terminal devices A, B, C... and so on. When the main user terminal device A performs a command, it will also monitor whether the operating wattage is exceeded to prevent the entire system from powering down.

In the power management method of the present invention, when the control unit of the main user terminal device is powered on, the DHCP server, intelligent search packet service, Simple Network Management Protocol (SNMP), CGI/XML and other packets will be turned on Protocol; From the upper-level Ethernet power switch according to the connection status, set the maximum power consumption of one of the overall circuits; At this time, the main user terminal device enters the detection mode and the scanning mode to find all the sub-user terminal devices under its smart search, and obtain the notification message reported by the sub-user terminal device; and record and calculate all the sub-users under it The power consumption of the terminal equipment, the maximum possible wattage, and the maximum wattage that can be obtained from the Ethernet power switch are used as the basis for turning on or turning off the power of each lamp. If there is no setting, the administrator can set each load of this loop through the management interface when the system is built, as the basis for management after the completion of the build.

Please refer to Figure 4, when the user terminal device 24 is set to the secondary power supply mode, the user terminal device 24's own power management unit 247 cannot perform the operation setting (for example: timing opening and closing) through its own control unit 242, and the upper layer The main user terminal device orders, and it is ordered by the main user terminal device to open according to the timing opening and closing function of the main user terminal device), or the administrator can order to the control unit 242 through the virtual server. Therefore, even if the secondary user terminal device has obtained power, it cannot turn on the light at will.

The present invention reserves the parameter of using wattage during intelligent search. When a fixed lamp is used, the system firmware will write the maximum wattage consumed by the lamp. Therefore, in the primary power supply mode and the secondary power supply mode, through the intelligent search management packet query (that is, the notification message reported by the secondary user terminal equipment), you can know and count the statistics of all secondary user terminal equipment under the primary user terminal equipment. Possible total wattage. In this way, it can be ensured that the power supply route from the Ethernet power switch or power supply to the main user terminal device will not be temporarily overloaded, causing the entire loop from the main user terminal device to the lower secondary user terminal device to be powered off , So as not to lose the purpose of using Ethernet-powered lamps to be better than traditional AC power supply.

因此當管理者設置該串燈具，即用戶終端設備A、B均需要開啟時，主用戶終端設備A將先檢視系統總瓦數及緩衝瓦數。由於緩衝仍大於零，因此一但收到管理者命令此迴路所有燈具點亮時，主用戶終端設備A將下令給自己的燈具電源模組，使其開始供電給燈具，同一時間也利用智能搜索發出封包給副用戶終端設備B的控制單元：「Slave 01 POE燈具(電源)打開。」當副終端 設備B收到此一智能搜索的命令封包時，控制單元便會下令給燈具電源模組使其開始供電給燈具。 For example, suppose that the main user terminal device A system consumes 5 watts, and the lamps consume 25 watts. The same is true for the secondary user terminal device B. There is a whole path from the power receiving port of the autonomous user terminal device A to the secondary user terminal device B. The consumption is about 60 watts. With 10 watts of line loss, the demand is 70 watts. From the perspective of the main user terminal device A, the records are as follows: 1. Ethernet power switch to main user terminal device A: From the Ethernet power switch to IEEE802.3bt protocol Class 4, Type 8 protocol success, it can be obtained Wattage 72 watts; 2. Primary user terminal equipment A to secondary user terminal equipment B: Obtained from the Ethernet power switch using the IEEE protocol, the other party's information is Class 4, Type 8, and the maximum wattage is 72 watts, reserved line Loss 20 watts, a total of 92 watts; 3. Deputy user terminal device B asks the deputy user terminal device B: Communicate with the smart search protocol, and found that there is a secondary user terminal device below, the minimum power consumption of the secondary user terminal device is System 5 Watts, 25 watts for lamps. Through the above steps, a total of two lamps consume 70 watts in total, and there is still about 2 watts of buffer wattage. The wattage statistics table of the main user terminal device A is as follows:

Therefore, when the administrator sets the string of lamps, that is, when both user terminal devices A and B need to be turned on, the main user terminal device A will first check the total system wattage and buffer wattage. Since the buffer is still greater than zero, once the administrator orders all lamps in this circuit to light up, the main user terminal device A will order its own lamp power module to start supplying power to the lamps, and at the same time it will also use smart search Send a packet to the control unit of the secondary user terminal device B: " Slave 01 POE lamp ( power ) is turned on. " When the secondary terminal device B receives this smart search command packet, the control unit will issue an order to the lamp power supply module. It starts to supply power to the lamps.

當管理者設置該串燈具，即用戶終端設備A、B、C均需要開啟時，主用戶終端設備A將先檢視系統總瓦數及緩衝瓦數。由於緩衝小於零，因此一但收到管理者命令時，主用戶終端設備A將提示管理者過載，亦或依指示順序進行開啟，如順開或逆開至系統上限。順開之指令為：「Master POE燈具電源打開」、「Slave 01 POE燈具電源打開」，此時因將超過迴路上限，因此副用戶終端設備C將不予開啟。而逆開之指令為：「Slave 02 POE燈具電源打開」、「Slave 01 POE燈具電源打開」，此時因將超過迴路上限，因此主用戶終端設備A將不予開啟。透過主用戶終端設備A的系統管理及智能搜索，可確保整個迴路不會因為過載斷電，仍能有效進行燈具控制。 The above embodiment has only two lamps, and the implementation example when there are three lamps is described below. Assume that the wattage statistics table of the main user terminal device A in this embodiment is as follows:

When the administrator sets the string of lamps, that is, when the user terminal devices A, B, and C need to be turned on, the main user terminal device A will first check the total wattage and buffer wattage of the system. Since the buffer is less than zero, the main user terminal device A will prompt the manager to be overloaded once receiving the manager's command, or open it in the order of instructions, such as open or reverse to the upper limit of the system. Shun Kai's instructions are: " Master POE lamp power on " and " Slave 01 POE lamp power on ". At this time, the upper limit of the loop will be exceeded, so the secondary user terminal device C will not be turned on. The instructions for reverse opening are: " Slave 02 POE lamp power on ", " Slave 01 POE lamp power on ". At this time, since the upper limit of the loop will be exceeded, the main user terminal device A will not be turned on. Through the system management and intelligent search of the main user terminal device A, it can be ensured that the entire circuit will not be powered off due to overload, and the lamps can still be controlled effectively.

A more advanced management, such as the use of the output interface of the input and output interface, through I2C, DALi, RS232 and other methods to control the brightness of the lamp and dynamic power management, such as: " Master POE lamp power on 50% ", " Slave 01 POE "Light power on " and " Slave 02 POE light power on " are calculated by the control unit of the master user terminal device A to perform real-time management without overloading the entire loop.

In summary, the Ethernet power supply control system and method provided by the present invention uses Ethernet to supply power to the external devices (such as lamps) of each user terminal device, and each user terminal device is It is connected in series with the Ethernet power switch, and the user terminal equipment is set to the main power supply mode or the auxiliary power supply mode, which can receive and supply power at the same time to provide a multi-layer power supply mode. In addition, the external device connected to the secondary user terminal device in the present invention is controlled by the main user terminal device responsible for management. Even if the external device has received power, it still needs to wait for instructions from the main user terminal device so that the main user terminal device can maximize The total power consumption is controlled and managed to avoid the power consumption exceeding the power provided by the Ethernet power switch, causing the entire circuit to be powered off. Therefore, the present invention can prevent the Ethernet power supply from being different from the traditional The shortcomings of AC power supply have solved the original limitation of the length of the twisted pair cable in the Ethernet network.

Only the above are merely preferred embodiments of the present invention, and are not used to limit the scope of the present invention. Therefore, all equivalent changes or modifications made in accordance with the characteristics and spirit of the application scope of the present invention shall be included in the patent application scope of the present invention.

24: User terminal equipment

241: Power receiving port

242: control unit

243: Power supply port

244: Input and output interface

245: Switch Processing Unit

246: Lamp Power Module

247: Power Management Unit

248: Redundant external power port

26: External device

30: Upper level equipment

32: Next layer equipment

Claims (20)

An Ethernet power supply control system includes an Ethernet power switch and a plurality of user terminal devices connected in series thereafter, and these user terminal devices are connected in series, and the user terminal devices include: At least one power receiving port is electrically connected to the Ethernet power switch or the user terminal equipment on the upper layer to obtain power supply and transmit packets; An output and input interface, receiving a power supply mode set from the outside, including the main power supply mode or the auxiliary power supply mode; A control unit, connected to the output and input interface, determines a routing mode according to the power supply mode to receive an IP address or provide an IP address to other user terminal equipment connected in series; At least one power supply port is electrically connected to the user terminal device of the next layer to provide power to other user terminal devices connected in series and transmit packets; and Wherein, when the power supply mode is the main power supply mode, the control unit sets the routing mode to the Network Address Translate Router (NAT Router) mode, and provides IP addresses to other user terminal devices connected in series subsequently, Calculate and manage the best power supply method to supply power to an external device according to the setting or schedule, When the power supply mode is the secondary power supply mode, the routing mode of the control unit is Switch mode or Bridge mode, and receives the IP address transmitted by the user terminal device set to the upper layer of the main power supply mode and Accept management. The Ethernet power supply control system according to claim 1, further comprising at least one switch processing unit, which is electrically connected to the power receiving port and the power supply port to transmit packets. The Ethernet power supply control system according to claim 1, wherein in the main power supply mode, the control unit sets the power receiving port as a wide area network (WAN) DHCP client, and sets the power supply port to The DHCP server side of the local area network (LAN). The Ethernet power supply control system according to claim 1, wherein in the secondary power supply mode, the control unit sets the power receiving port and the power supply port as the DHCP client of the local network. The Ethernet power supply control system according to claim 1, wherein the input/output interface includes an input finger, when it is in the off state, the main power supply mode, and when the input finger is in the on state, it is the secondary power supply mode. The Ethernet power supply control system according to claim 1, further comprising a lamp power module electrically connected to the control unit, the external device is a lamp, and the user terminal device is connected through the lamp power module. The lamp power module transmits a control signal to the lamp. The Ethernet power supply control system according to claim 6, wherein the activation setting of the external device is sent by the user terminal device with the main power supply mode to send the control signal, or by a manager through a virtual server The control signal is sent in the method, and the control signal is transmitted to the lamp power module through the input and output interface. The Ethernet power supply control system according to claim 6 or 7, wherein the control signal includes an emergency stop signal, a timing start and close or a preset schedule. The Ethernet power supply control system described in claim 1 further includes a redundant external power connection port electrically connected to the control unit for providing an external power supply. The Ethernet power supply control system described in claim 1, further comprising a power management unit, which is electrically connected to the power receiving port, the power supply port and the control unit, for receiving power from the power receiving port and providing The low voltage required by the control unit is supplied to other user terminal equipment connected in series through the power supply port. An Ethernet power supply control method includes an Ethernet power switch and a plurality of user terminal devices connected in series thereafter, and the user terminal devices are connected in series. The control method includes the following steps: Set the user terminal device connected to the Ethernet power switch to a main power supply mode and one main user terminal device, and set the remaining user terminal devices connected in series to the main user terminal device to a secondary power supply mode At least one pair of user terminal equipment; After the Ethernet power switch is powered, a control unit of one of the user terminal devices determines whether it is the primary user terminal device or the secondary user terminal device according to a power supply mode set by an output and input interface, and based on the The power supply mode determines a routing mode to receive IP addresses or provide IP addresses to other user terminal devices connected in series; and If the user terminal device is the main user terminal device, the control unit sets a routing mode to the Network Address Translate Router (NAT Router) mode, and provides IP addresses to other secondary user terminals connected in series. Equipment, calculate and manage the best power supply method to supply power to an external device according to the setting or schedule, If the user terminal device is a secondary user terminal device, the routing mode of the control unit is a switch mode or a bridge mode, and the IP address transmitted by the upper layer main user terminal device is received and managed. The Ethernet power supply control method according to claim 11, wherein the control unit of the main user terminal device sets a power receiving port as a DHCP client of a wide area network, and sets a power supply port as a local network The DHCP server side. The Ethernet power supply control method according to claim 11, wherein the control unit of the secondary user terminal device sets a power receiving port and a power supply port as a DHCP client of the local network. The Ethernet power supply control method according to claim 11, wherein the input/output interface includes an input dial, when it is in the off state, the main power supply mode, and when the input dial is in the on state, it is the secondary power supply mode. The Ethernet power supply control method according to claim 11, wherein one of the external devices connected to the user terminal equipment is a lamp, and its activation setting is sent by the main user terminal equipment to the control signal, or managed by a The control signal is sent through a virtual server, and the control signal is sent to the lamp through the input and output interface. The Ethernet power supply control method according to claim 15, wherein the control signal includes an emergency stop operation signal. The control signal includes an emergency stop operation signal, timing on/off or preset schedule. The Ethernet power supply control method described in claim 11 further includes the following steps: After the primary user terminal device obtains the power provided by the Ethernet power switch, it periodically uses smart discovery to search for at least one packet of the secondary user terminal device. If so, it provides power and uses DHCP Provide IP address by way; After the secondary user terminal device obtains the IP address, it sends a notification message back to the primary user terminal device through a smart search. The notification message includes the obtained IP address and the Media Access Control Address (MAC). ), the name and type of the equipment, the parameters of the required power supply wattage, the current status of the lamp, the current wattage consumption of the lamp, etc; The primary user terminal equipment includes a DHCP table. After receiving the notification message sent back by the secondary user terminal equipment, compare whether the content of the notification message matches the DHCP table. If they are consistent, the primary user terminal equipment Store and manage the secondary user terminal equipment. The Ethernet power supply control method according to claim 17, wherein after the primary user terminal device manages the secondary user terminal device, it automatically turns on a virtual server function and adds a virtual port For web management. The Ethernet power supply control method according to claim 17, wherein the notification message further includes the power consumption of the secondary user terminal device for the management of the primary user terminal device. The Ethernet power supply control method according to claim 17, wherein the process of the main user terminal device for power management further includes the following steps: After the control unit is powered on, it turns on the DHCP server, intelligent search packet service, Simple Network Management Protocol (SNMP), CGI/XML and other packet protocols; According to the connection status of the Ethernet power switch on the upper level, set the maximum power consumption of one of the overall circuits; Enter the detection mode and the scan mode, find all the secondary user terminal devices under your jurisdiction with smart search, and get the notification message; and Record and calculate the power consumption wattage, the maximum possible wattage consumption, and the maximum wattage that can be obtained from the Ethernet power switch of all the secondary user terminal equipment under its jurisdiction.

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