TWI422191B - Electricity management methods, power management devices and computer program products - Google Patents

Description

Power management method, power management device and computer program product

The present invention relates to a management method, a management device, and a program product, and more particularly to a power management method, a power management device, and a computer program product for adjusting power.

Because Ethernet has high-speed transmission, high compatibility, and the transmission distance can be extended to metropolitan area network (LAN) and wide area network (WAN), it has become an important tool for resource sharing.

The Ethernet Switch is an important device for transmission over Ethernet. It is used to receive packets from the network for information exchange and resource sharing, but with the promotion of optical fibers. The transmission data volume is greatly increased and the operating frequency of the Ethernet switch is getting higher and higher, so that the problem of solving the power consumption becomes the current research direction.

At present, most of the research cannot dynamically switch the transmission interface of the Ethernet switch according to the packet traffic of the Ethernet switch in the state of being powered and unpowered, so it cannot effectively turn off the power or reduce the operation when there is no packet or packet. Frequency to save power, and the conventional control method can not be adjusted flexibly. When you want to modify the control conditions or expand the machine function, you must replace the new circuit. If the machine ages due to the time of use, you must perform regular maintenance inspection, which will cause additional Cost of expenditure.

Accordingly, it is an object of the present invention to provide a power management method that avoids the above-mentioned deficiencies and increases efficiency.

The power management method is applicable to an Ethernet switch, and the Ethernet switch includes a plurality of ports having a transmission interface and a controller, and the power management method includes the following steps: detecting by using a determining unit Whether each connection has a physical layer connection to distinguish between a connectionless connection port and a connected connection port; and using a determination unit to detect whether the transmission interface of the connected connection port has traffic, and in the transmission When there is no traffic in the interface, the transmission interface is closed by a setting unit.

Another object of the present invention is to provide a power management apparatus that avoids the above-mentioned deficiencies and increases efficiency.

The power management device is applicable to an Ethernet switch, and the Ethernet switch includes a plurality of ports having a transmission interface and a controller, and the power management device includes: a determining unit that detects each connection Whether there is a physical layer connection to distinguish between a connectionless connection port and a connected connection port, thereby detecting whether the transmission interface of the connected connection port has a traffic to obtain a detection result; and a setting unit, Receiving the detection result and determining whether to close the transmission interface according to the detection result.

A third object of the present invention is to provide a computer program product that avoids the above-mentioned drawbacks and increases efficiency.

The computer program product is loaded into the program by a processor of a computer to perform control of an Ethernet switch, and the Ethernet switch includes a plurality of ports having a transmission interface and a controller, and the computer program The product includes: causing the processor to detect whether there is a physical layer connection in each connection, to distinguish between the unconnected port and the connected port, and to enable the processor to detect the connected connection Whether there is traffic in the transmission interface, and the program instruction to close the transmission interface when there is no traffic in the transmission interface.

The above and other technical contents, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments.

As shown in FIG. 1 , a preferred embodiment of the power management device of the present invention is applicable to saving power used in an Ethernet switch, and includes a determining unit C1, a setting unit C2, and an analysis. Unit C3. The Ethernet switch includes a plurality of ports 2 (for convenience, only one port is shown in the figure).

Each port 2 has a controller 21 electrically connected to the power management device and a transmission interface 22 electrically connected to the controller 21, each controller 21 for confirming whether the port 2 to which it belongs is connected to an electronic device. The device, and each of the transmission interfaces 22 can be electrically connected to an electronic device and exchange data therewith.

The analyzing unit C3 is electrically connected to the setting unit C2. The setting unit C2 is electrically connected to each of the ports 2. The judging unit C1 is electrically connected to the controller 21, the transmission interface 22, the setting unit C2, and the analyzing unit C3.

The power management method executed by the power management apparatus of the present invention is as shown in FIG. 2, and includes the following steps: Step 10: The analysis unit C3 analyzes the time when the client may use the network, and obtains an analysis result, and notifies the analysis result of the analysis result. The unit C2 dynamically sets a set energization time t _on and a set non-energization time t _off .

In this example, if the user is an office worker, step 10 may analyze that the user is using the Internet at home from 17:00 to 24:00, and may be sleeping or going to work at other times. Therefore, between 17:00 and 24:00, as shown in FIG. 3, the set energization time t _on is set to five seconds, and the set non-energization time _tot is two seconds. During the period from 0:00 to 17:00, as shown in FIG. 4, the set energization time t _{on is} reduced to two seconds, and the set non-energization time t _{off is} increased to five seconds, which can save power more efficiently. However, the setting method is not limited to the above.

Step 11: The determining unit C1 detects whether each connection 埠2 of the Ethernet switch has a physical layer connection in the set power-on time, so as to distinguish the unconnected port and the connected port to obtain a distinction. As a result, the setting result is notified to the setting unit C2 and the analyzing unit C3, and then proceeds to steps 12 and 14 to process the unconnected port and the connected port.

In this step 11, the determining unit C1 detects whether each port 2 (this port 2 is not limited to a wired or wireless port) has a physical layer connection (the wired physical layer is connected to the network route, the wireless entity) The way the layer is connected to the radio wave is as follows: If the port is wired to exchange data with the electronic device, the detection method includes:

Mode (1): The determining unit C1 continuously sends an electronic signal to the controller of each port, and determines whether there is a response from the controller 21 that receives the port 2 within a valid period, and then judges the connection with the response. For the connected port, the unresponsive port is judged as a connectionless port, that is, if an electronic device is connected to the port of the Ethernet switch, the electronic device will be connected to the port 2 The controller 21 first performs handshake, so that the controller 21 of the connection port 2 confirms that there is a connection, and when it receives the electronic signal sent by the judgment unit C1, it will respond to the judgment unit C1, so that the judgment unit C1 judges and the electronic The connection where the device is connected is the connected port.

Mode (2): The judging unit C1 judges whether or not there is a link notification of the controller that has received the connection, and if so, determines that there is a connection, and conversely, there is no connection. That is, when the user inserts the network route into a port 2 and the card is successfully inserted into the card slot, the controller 21 of the port 2 issues a link notification to notify the judgment unit C1 that a physical link is generated.

If the connection port 2 is to exchange data with the electronic device in a wireless manner, in another embodiment of the step 11, the power management device further includes a connection record table, and each of the electronic devices connected to the connection port 2 is configured. A connection information is transmitted via the controller 21 and stored in the connection record table, and the determination unit C1 can determine whether the wireless connection port has a physical layer connection according to the connection record table.

Step 12: The setting unit C2 first switches the power state of each unconnected port from power to no power, and causes each unconnected port to maintain a powerless state within the set non-energized time.

Step 13: After the set non-power-on time, the setting unit C2 switches the power state of the unconnected port in step 12 from no power to power, and maintains each unconnected port within the set power-on time. Electrical state, and skip to step 11.

Step 14: The determining unit C1 detects whether there is traffic in the transmission interface 22 of each connected port, and obtains a detection result, and transmits the detection result to the setting unit C2. When the detection result shows no traffic, Then skip to step 15. When the detection result shows that there is traffic, skip to step 17.

Step 15: The setting unit C2 temporarily puts the transmission-free transmission interface 22 in the step 14 in a state of no power for a predetermined time, and jumps back to the step 16 after the predetermined time elapses.

Step 16: Set unit C2 to switch the transmission interface 22 of step 15 from no power to active, and jump back to step 14.

As shown in FIG. 5, if the power management device W1 of the present invention is used in a network switch W0 having a wired connection W2 and a wireless connection W3, the wired connection W2 is connected to an electronic device (such as a personal computer). The wireless connection 埠W3 exchanges data with another wireless electronic device by radio waves. In another embodiment of the above steps 15-16, if the detection result shows that the transmission interface 22 of the wired connection 埠W2 has no traffic, then The setting unit C2 causes the wireless connection port W3 to be in a state of no power, and when the detection result shows that the transmission interface 22 of the wired connection port W2 has a flow rate, the wireless connection port W3 is switched from no power to power.

Step 17: The setting unit C2 dynamically adjusts the operating frequency of the transmission interface 22 having the flow rate in the step 14 according to the flow rate displayed by the detection result, thereby reducing the power loss.

In this example, step 17 is illustrated. If the Ethernet switch is operable to transmit the amount of data of the Gbps bit, and the data traffic of the connected electronic device is only 10/100 Mbps, the corresponding transmission can be dynamically reduced. The interface operates from 125MHz to 100MHz. For example, when the Ethernet interface of the Ethernet switch is used to simplify the G-bit Media Independent Interface (RGM II), the operating frequency of the RGMII can be reduced from 125 MHz to 100 MHz.

In summary, the preferred embodiment of the present invention is applied to the transmission management of the Ethernet network, and has the following advantages: switching the power supply state of the connection port 2 and its transmission interface 22, and adjusting the transmission interface according to the traffic. 22 operating frequency to reduce unnecessary power consumption and reduce the impact of electromagnetic interference (EMI) to achieve energy saving and carbon saving effect.

It should be noted that the power management device of the present invention can also be implemented as a computer program product in a software manner. For example, after designing the functions of the analysis unit, the determination unit, and the setting unit into related programs, the input to a computer processing capability is input. The hardware device (such as a processor) can perform the aforementioned analysis, determination and setting steps. Moreover, in the software mode, the circuit complexity of the original Ethernet switch is not increased, and it is easy to install on any platform, and it is only necessary to reset the parameters when it is desired to modify the control conditions.

The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All remain within the scope of the invention patent.

C1. . . Judging unit

C2. . . Setting unit

C3. . . Analysis unit

2. . . Connection

twenty one. . . Controller

twenty two. . . Transmission interface

10. . . Steps to adjust the power on and off time

11. . . Steps to detect the presence or absence of a physical layer link

12. . . Adjust the steps without electricity

13. . . Adjust the steps with electricity

14. . . Steps to adjust traffic

15. . . Steps to close the transport interface

16. . . Transfer interface switching power supply steps

17. . . Steps to adjust the working frequency

W0. . . Network switch

W1. . . Power management device

W2. . . Wired connection埠

W3. . . Wireless connection埠

Figure 1 is a circuit diagram of a preferred embodiment of the present invention;

Figure 2 is a flow chart of the preferred embodiment;

Figure 3 is a schematic diagram of the power state of the connection port; and

Figure 4 is another schematic diagram of the power state of the connection port; and

Figure 5 is another circuit diagram of the preferred embodiment.

10. . . Steps to adjust the power on and off time

11. . . Steps to detect the presence or absence of a physical layer link

12. . . Adjust the steps without electricity

13. . . Adjust the steps with electricity

14. . . Steps to adjust traffic

15. . . Steps to close the transport interface

16. . . Transfer interface switching power supply steps

17. . . Steps to adjust the working frequency

Claims (18)

A power management method is applicable to an Ethernet switch, and the Ethernet switch includes a plurality of ports having a transmission interface and a controller, and the power management method includes the following steps: detecting by using a determining unit Whether each connection has a physical layer connection to distinguish between a connectionless connection port and a connected connection port; and a determination unit detects whether the transmission interface of the connected connection port has traffic, and the transmission interface When there is no traffic, the transmission interface is closed by using a setting unit; and an analysis unit is used to analyze the time when the client uses the network to dynamically set a set non-power-on time, and the unconnected connection is not powered by the setting. The power is maintained in the no-power state for a while, and after the setting is not energized, the battery is switched to the powered state. According to the power management method of claim 1, wherein, if there is no physical layer connection, the setting unit is used to switch the power state of each unconnected connection from power to no power, and make each The connected port is maintained in an unpowered state. According to the power management method of claim 1, wherein the analyzing unit analyzes the time when the client uses the network to dynamically set a set power-on time, and uses the determining unit to set the power-on time. Detect if each connection has a physical layer connection. The power management method according to claim 1, wherein if there is no traffic, the setting unit temporarily temporarily disables the transmission interface without traffic in a predetermined period of time. According to the power management method of claim 4, after the predetermined time elapses, the setting unit is used to switch the transmission interface from no power to power. The power management method according to claim 1, wherein if there is a flow rate, the setting unit dynamically adjusts an operating frequency of the transmission interface having a flow rate according to the flow rate. A power management device is applicable to an Ethernet switch, and the Ethernet switch includes a plurality of ports having a transmission interface and a controller, and the power management device includes: a determining unit that detects each Whether there is a physical layer connection in the connection to distinguish between the unconnected port and the connected port, thereby detecting whether the transmission interface of the connected port has a traffic to obtain a detection result; a setting unit, Receiving the detection result and determining whether to close the transmission interface according to the detection result; and an analyzing unit, analyzing the time when the client uses the network to obtain an analysis result, and notifying the setting unit of the analysis result The setting time is set dynamically, and the setting unit maintains the unconnected connection in the no-power-on state during the set non-energization time, and then switches to the powered state after the set non-energization time. According to the power management device of claim 7, wherein, if there is no physical layer connection, the setting unit switches the power state of each unconnected port from power to no power, and makes each link unconnected. The port is maintained in an unpowered state. The power management device according to claim 7 , further comprising an analysis unit, wherein the analysis unit analyzes a time when the client uses the network to obtain an analysis result, and notifies the setting unit to dynamically set the analysis result. A set power-on time is set, and the determining unit detects whether each port has a physical layer connection in the set power-on time. According to the power management device of claim 7, wherein if the detection result shows that there is no traffic, the setting unit temporarily temporarily disables the transmission interface without traffic in a predetermined time. The power management device according to claim 10, wherein the setting unit switches the transmission interface from no power to power after the predetermined time elapses. According to the power management device of claim 7, wherein the setting unit further dynamically adjusts the operating frequency of the transmission interface having the flow rate according to the flow rate. A computer program product that loads a program via a processor of a computer to perform control of an Ethernet switch, and the Ethernet switch includes a plurality of ports having a transmission interface and a controller, and the computer The program product includes: causing the processor to detect whether there is a physical layer connection in each connection, to distinguish between a connectionless connection port and a connected connection port program command; causing the processor to detect the connected connection Whether there is traffic in the transmission interface, and the program instruction to close the transmission interface when there is no traffic in the transmission interface; and The time when the client uses the network is analyzed to dynamically set a set non-power-on time, and the unconnected connection is maintained in a non-powered state during the set non-power-on time, and then switched to the powered state after the setting is not powered. Program instructions for the state. The computer program product according to claim 13 of the patent application scope is further included when the physical layer is not connected, so that the processor switches the power state of each unconnected connection from the power to the no power, and makes each The connected port is maintained as a program command without power. According to the computer program product described in claim 13, the method further comprises: analyzing the time when the client uses the network to dynamically set a set power-on time, and using the determining unit to detect each connection within the set power-on time. Is there a program directive linked by a physical layer? The computer program product according to claim 13 of the patent application, further includes a program instruction for temporarily causing the non-flowing transmission interface to be in an unpowered state for a predetermined time without traffic. The computer program product according to claim 16 further includes a program instruction for switching the transmission interface from no power to power after the predetermined time. The computer program product according to claim 13 of the patent application scope further includes program instructions for dynamically adjusting the operating frequency of the transmission interface having the flow rate according to the traffic volume when there is traffic.