TW202105960A - Remote wake-up method and remote wake-up system - Google Patents

Abstract

A remote wake-up method is adapted to a remote client via a network. The remote client at least includes a first network interface. The first network interface is connected to the network. The first network interface supports Wake-on-LAN function. The remote client transfers a display signal to the remote client to a display content stream, and utilizes the first network interface to output the display content stream via the network. The method includes: sending a remote control package to the remote client via the network, and according to a response of the first network interface determining whether the remote client in power-on; determining whether the response of the first network interface includes the display content stream; if the response does not include the display content stream, sending a wake-up package to wake the remote client up; and if the includes the display content stream, displaying a remote screen according to the display content stream.

Description

Remote wake-up method and remote wake-up system

The present invention relates to remote control, in particular to a remote wake-up method and remote wake-up system.

The computer room where the server host is placed is usually not directly accessible by operators. The way to operate the server host is usually to use a remote computer as a control terminal, install remote control software to connect to the server host remotely.

The server host must also install the corresponding controlled end software and load it for execution before it can be controlled by the remote computer. However, the software on the controlled end must be in a normal boot state for the server host to operate normally. If the server host is in hibernation or shutdown state, the remote computer cannot wake up the server host through the remote control software. Sometimes, the server host may also be in a down state, causing the remote control software to lose control.

Therefore, people who are remotely operating the server host often cannot use the connection status to determine whether the server is in a dormant or down state, which causes debugging difficulties.

In view of the above-mentioned problems, the present invention proposes a remote wake-up method, which can automatically test the state of the controlled terminal before performing remote control, and automatically perform a startup or wake-up operation on the controlled terminal.

The present invention provides a remote wake-up method, which is suitable for waking up a controlled terminal through a network. The controlled terminal has at least a first network interface, the first network interface is connected to the network, and the first network interface has With a wake-on-LAN function, the controlled end can convert a display signal of the controlled end into a display signal stream, which is output via the network through the first network interface. The method includes: sending a remote control packet to the controlled end through the network, judging whether the power state of the controlled end is on according to a response of the first network interface; judging whether the response of the first network interface includes a display signal stream ; If the response does not include the display signal stream, a wake-up packet is sent to the first network interface to wake up the controlled end; and if the response includes the display signal stream, a remote screen is displayed according to the display signal stream.

In at least one embodiment, before sending the remote control packet, it further includes finding a corresponding network address and a connection authorization information according to the controlled end to send the remote control packet.

In at least one embodiment, the remote control packet is an input code generated by an input device, and the input code does not change the execution status of an operating system of the controlled terminal or a running service application.

In at least one embodiment, the input code is a virtual key code or a cursor movement command.

In at least one embodiment, when the controlled terminal does not respond to the remote control packet, or the response includes a flag indicating that the controlled terminal is shut down, an unpowered message is generated.

In at least one embodiment, it further includes generating a remote boot packet and sending it to the first network interface, so that the first network interface turns on the power of the controlled terminal.

In at least one embodiment, after the wake-up packet is sent, it is re-determined whether the response includes the display signal stream.

In at least one embodiment, if the number of times the wake-up packet is sent is greater than a threshold and the response still does not include the display signal stream, an error message is generated.

The present invention also provides a remote wake-up system, which includes a controlled terminal and a master terminal. The controlled end has a first network interface, the first network interface is connected to the network, and the first network interface has a Wake-on-LAN function; the controlled end can convert a display signal into a display signal stream, through The first network interface is output via the network, and the first network interface is used to respond to a remote control packet. The host has a second network interface and a display interface, and the host sends remote control packets via the network through the second network interface.

Among them, when the response of the first network interface shows that the power status of the controlled terminal is on, but the response does not include the display signal stream, the master sends a wake-up packet to the first network interface through the second network interface; Contains the display signal stream, and the host terminal drives the display interface to display a remote screen according to the display signal stream.

In at least one embodiment, before sending the remote control packet, the host terminal finds a corresponding network address and a connection authorization information according to the controlled terminal to send the remote control packet.

In at least one embodiment, the remote control packet is an input code generated by an input device, and the input code does not change the execution status of an operating system of the controlled terminal or a running service application.

In at least one embodiment, the input code is a virtual key code or a cursor movement command.

In at least one embodiment, when the controlled terminal does not respond to the remote control packet, or the content of the response includes a flag indicating that the controlled terminal is shut down, the controlling terminal generates an unpowered message and displays it on the display interface.

In at least one embodiment, the host generates a remote boot packet and sends it to the first network interface, so that the first network interface turns on the power of the controlled end.

In at least one embodiment, after sending the wake-up packet, the host re-determines whether the response includes a display signal stream.

In at least one embodiment, if the number of times the wake-up packet is sent is greater than a threshold and the response still does not include the display signal stream, the host generates an error message and displays it on the display interface.

Through the remote wake-up method and remote wake-up system of the present invention, when performing remote control connection operations, the master control end as the local end can automatically test and determine the power state or boot state of the controlled end, and automatically execute the necessary Remote boot or wake-up operations. Therefore, the operations of the local user on the master terminal can be simplified, and there is no need to judge the status of the controlled terminal by themselves.

Please refer to FIG. 1, FIG. 2 and FIG. 3, which are a remote wake-up system 1 disclosed in an embodiment of the present invention, which includes a controlled terminal 100 and a master terminal 200.

As shown in FIGS. 1 and 2, a specific embodiment of the controlled terminal 100 is a server host for running one or more service applications. The controlled end 100 may be a server host composed of an independent computer, or may be a computing cluster formed by a combination of multiple computers (or multiple motherboards). Specifically, the controlled terminal 100 at least includes a first central processing unit 110, a first memory 120, a first storage device 130, a first graphics chip 140, and a first network interface 150. The first memory 120, the first storage device 130, the first graphics chip 140, and the first network interface 150 are directly or indirectly electrically connected to the first central processing unit 110. The first central processing unit 110 loads the operating system, service application programs, and the program code of the controlled terminal 100 from the first storage device 130 (such as a hard disk drive), and uses the first memory 120 as a temporary storage space to execute the operating system and services Application program and 100 program code of the controlled terminal. Therefore, the controlled terminal 100 provides a remote controlled function, and receives remote control packets through the first network interface 150.

As shown in FIG. 1 and FIG. 3, the main control terminal 200 can be, but is not limited to, a desktop computer, a laptop tablet computer, or a smart phone. The main control terminal 200 at least includes a second central processing unit 210, a second memory 220, a second storage device 230, a second graphics chip 240, and a second network interface 250. The main control terminal 200 is also electrically connected to a display interface 300 (display or touch display panel) through the second graphics chip 240. The second central processing unit 210 loads the operating system and the remote control program code from the second storage device 230 to perform the remote control function, and outputs the remote control packet through the second network interface 250. At the same time, according to the display signal stream received by the second network interface 250, the second CPU 210 drives the second graphics chip 240 to generate corresponding local display signals, and drives the display interface 300 to display remote images.

Although the controlled terminal 100 and the master terminal 200 shown in FIG. 1 have a one-to-one connection relationship, they can actually be a one-to-many, many-to-one, or many-to-many connection relationship.

As shown in FIG. 1 and FIG. 2, the controlled terminal 100 can enter the dormant state according to the setting of the operating system or manual operation. The first network interface 150 has a Wake-on-LAN function, and maintains operation after the controlled end 100 enters the sleep state, so as to respond to the remote control packet after receiving the remote control packet. The first network interface 150 analyzes the content of the remote control packet and the current state of the controlled terminal 100 to determine whether to wake up the controlled terminal 100. According to the operating system executed by the first CPU 110 and the code of the controlled terminal 100, the first CPU 110 or the first graphics chip 140 of the controlled terminal 100 converts the display signal of the local terminal into a display signal stream. The first network interface 150 outputs to the designated host 200.

As shown in FIGS. 1 and 3, the host 200 sends a remote control packet through the second network interface 250 and receives a response from the first network interface 150. When the response of the first network interface 150 does not include the display signal stream, it means that the controlled terminal 100 is in a dormant state, and the control terminal 200 sends a wake-up packet to the first network interface 150 through the second network interface 250 to Wake up the controlled end 100. After being awakened, the controlled terminal 100 can start to output a display signal stream. When the response includes a display signal stream, the host 200 drives the display interface 300 to display a remote screen according to the display signal stream, so as to prepare for remote control operations. The host 200 will continue to output corresponding remote control packets and display the remote screen according to the user's operations on the host 200.

Refer to FIG. 4, which is a flowchart of the remote wake-up method of the present invention, which is applied to the control terminal 200 to wake up the controlled terminal 100 through the network.

With reference to Figure 1, Figure 2 and Figure 3, first, after the host 200 executes the remote control code, the user can start to execute the remote control function and select a controlled end 100 to perform remote operation. . At this time, the host 200 finds the corresponding network address and necessary connection authorization information according to the controlled terminal 100 selected by the user, and drives the second network interface 250 to send to the controlled terminal 100 via the network A remote control packet, as shown in step 110.

The aforementioned remote control packet can be, but is not limited to, a connection request packet. In some cases, the connection between the control terminal 200 and the controlled terminal 100 has been established, but the remote control of the controlled terminal 100 by the control terminal 200 has been idle for too long. At this time, in order to avoid unnecessary network traffic caused by continuously updating the display screen of the host 200, the controlled end 100 can actively or passively suspend the output of the display signal stream, so that the display screen of the host 200 is temporarily freeze. At this time, the remote control packet may be an input code generated by the user of the host 200 through the input device 400, such as a virtual key code issued by a keyboard or a cursor movement command issued by a mouse movement. Whether the input code is a virtual key code or a cursor movement command, it does not involve changing the operating system of the controlled terminal 100 or the execution status of a service application in execution, so as to avoid affecting the operation of the controlled terminal 100. Generally, the cursor movement instruction only involves the movement of the cursor, and therefore does not change the execution state of the controlled terminal 100. The virtual key code issued by the keyboard preferably corresponds to the keys that are not defined for use, such as the keys with undefined functions in the function keys F1~F12; or, the virtual key code can be in the format of the key code, but does not correspond to Any key on the keyboard.

The basic format of the remote control packet will include connection authorization information and control command content. The connection authorization information includes, but is not limited to, the identification code of the host 200, the identification code of the controlled terminal 100, and the connection authorization code. In the process of continuously monitoring network packets, the first network interface 150 compares the identification code of the host 200, the identification code of the controlled end 100, and the connection authorization code to determine whether it is an allowable host. The terminal 200 responds to the remote control packet sent by the controlled terminal 100. The content of the control instruction includes operations performed on the input interface of the main control terminal 200 such as cursor movement instructions or key codes. At the same time, the first network interface 150 is configured to receive remote control packets and respond to the power status of the controlled terminal 100. The aforementioned power status is obtained by the status pin of the power supply. Therefore, as long as the power supply is connected to an external power source and can supply power, the first network interface 150 can operate independently to respond to remote control packets.

Then, the external network packet is received through the second network interface 250, and the response of the first network interface 150 is analyzed to determine whether the power state of the controlled terminal 100 is on, as shown in step 120.

When the controlled terminal 100 does not respond to the remote control packet, or the content of the response packet contains a flag indicating that the controlled terminal 100 is shut down, it means that the power state of the controlled terminal 100 is the shutdown state. At this time, the first CPU 110 of the main control terminal 200 generates an unpowered message, and drives the display interface 300 with the second graphics chip 240 to display the unpowered message, as shown in Step 130. Then, the second CPU 210 of the host 200 further generates a remote boot packet, which is sent to the first network interface 150 through the second network interface 250, so that the first network interface 150 opens the control terminal 100 Power supply, as shown in Step 140. Then, the host 200 resends a remote control packet for establishing a remote control connection. Step 140 may also be to send a remote notification to notify a person at the remote end to manually power on the controlled terminal 100.

Then, the host 200 determines whether the response of the first network interface 150 includes the display signal stream of the controlled end 100 according to the remote control program code executed by the second central processing unit 210, as shown in Step 150.

If the response does not include the display signal stream, it means that the controlled terminal 100 is in a power-on but dormant state, so the display signal stream is not generated to output through the first network interface 150. At this time, the host 200 drives the second network interface 250 to send a wake-up packet to the first network interface 150 to wake up the controlled terminal 100, as shown in step 160.

Then re-determine whether the response of the first network interface 150 includes the display signal stream of the controlled terminal 100, and if the response includes the display signal stream, a remote screen is displayed according to the display signal stream, as shown in Step 170.

In step 150, it is determined whether the response of the first network interface 150 includes the display signal stream of the controlled terminal 100, and it can be further determined whether the controlled terminal 100 has been awakened. If the number of times the wake-up packet is sent is greater than a threshold, and the response still does not include the display signal stream, the controlled terminal 100 may already be in a down state and cannot generate the display signal stream. At this time, the second CPU 210 of the host 200 generates an error message to drive the display interface 300 to display through the second graphics chip 240. At this time, the user can directly know that the controlled terminal 100 is already in an abnormal state (down state), and does not need to repeat the test to make a judgment.

The foregoing specific implementation of the re-judgment may include step 152 between step 150 and step 160. In Step 152, a threshold value, such as 5, is set as the upper limit of the number of times the wake-up packet is sent. If the number of retries for waking the controlled terminal 100 is not more than 5, that is, the number of times the wake-up packet is sent is not more than 5, the master 200 enters Step 160 to issue a wake-up packet to wake up the controlled terminal 100 again. If the number of times the wake-up packet is sent is greater than the threshold, that is, greater than 5 times, and the response of the controlled end 100 still does not include the display signal stream, the control end 200 determines that the controlled end 100 is in an abnormal state (down state) , And an error message is generated, as shown in Step 180. Setting a proper number of retries can prevent the controlled terminal 100 from responding too slowly, or when the network obstacle causes packet loss, the delayed transmission of the display signal stream causes the controlled terminal 100 to be misjudged as a crash. At the same time, the automatic retry can also simplify the steps for the user to perform remote control using the master terminal 200, without the need to determine whether the controlled terminal 100 can operate normally.

Through the remote wake-up method and remote wake-up system of the present invention, when performing remote control connection operations, the master control end as the local end can automatically test and determine the power state or boot state of the controlled end, and automatically execute the necessary Remote boot or wake-up operations. Therefore, the operations of the local user on the master terminal can be simplified, and there is no need to judge the status of the controlled terminal by themselves.

1: Remote wake-up system 100: controlled end 110: The first central processing unit 120: first memory 130: The first storage device 140: The first graphics chip 150: The first network interface 200: master 210: second central processing unit 220: second memory 230: second storage device 240: second graphics chip 250: second network interface 300: display interface 400: Input device Step 110~Step 180: Step

Fig. 1 is a system block diagram of a remote wake-up system in an embodiment of the present invention. Fig. 2 is a circuit block diagram of the controlled terminal in the embodiment of the present invention. Fig. 3 is a circuit block diagram of the main control terminal in an embodiment of the present invention. Fig. 4 is a flowchart of a remote wake-up method in an embodiment of the present invention.

Step 110~Step 180: Step

Claims (16)

A remote wake-up method is suitable for waking up a controlled terminal through a network, the controlled terminal has at least a first network interface, the first network interface is connected to the network, and the first network interface With a network wake-up function, the controlled end can convert a display signal of the controlled end into a display signal stream, and output via the network through the first network interface. The method includes: Send a remote control packet to the controlled terminal through the network, and determine whether the power state of the controlled terminal is on according to a response of the first network interface; Determining whether the response of the first network interface includes the display signal stream; If the response does not include the display signal stream, send a wake-up packet to the first network interface to wake up the controlled end; and If the response includes the display signal stream, a remote screen is displayed according to the display signal stream. The remote wake-up method according to claim 1, wherein, before sending the remote control packet, it further includes finding a corresponding network address and a connection authorization information according to the controlled end, so as to send the Remote control packets. The remote wake-up method according to claim 1, wherein the remote control packet is an input code generated by an input device, and the input code does not change an operating system of the controlled terminal or a service application program in execution The execution status. The remote wake-up method according to claim 3, wherein the input code is a virtual key code or a cursor movement command. The remote wake-up method according to claim 1, wherein when the controlled end does not respond to the remote control packet, or the content of the response includes a flag that the controlled end is shut down, an unpowered message is generated. The remote wake-up method according to claim 5, further comprising generating a remote boot packet and sending it to the first network interface, so that the first network interface turns on the power of the controlled terminal. The remote wake-up method according to claim 1, wherein after the wake-up packet is sent, it is determined whether the response includes the display signal stream. The remote wake-up method according to claim 1, wherein if the number of times the wake-up packet is sent is greater than a threshold and the response still does not include the display signal stream, an error message is generated. A remote wake-up system, including: A controlled terminal has a first network interface, the first network interface is connected to the network, and the first network interface has a wake-on-LAN function; the controlled terminal can convert a display signal to a Display a signal stream, output via the network through the first network interface, and the first network interface is used to respond to a remote control packet; and A host having a second network interface and a display interface, the host sending the remote control packet via the network through the second network interface; Wherein, when the response of the first network interface shows that the power state of the controlled end is on, but the response does not include the display signal stream, the control end faces the first network through the second network interface The interface sends out a wake-up packet; when the response includes the display signal stream, the host drives the display interface to display a remote screen according to the display signal stream. The remote wake-up system according to claim 9, wherein, before sending the remote control packet, the host finds a corresponding network address and a connection authorization information according to the controlled end to Send the remote control packet. The remote wake-up system according to claim 9, wherein the remote control packet is an input code generated by an input device, and the input code does not change an operating system of the controlled end or a service application program in execution The execution status. The remote wake-up system according to claim 11, wherein the input code is a virtual key code or a cursor movement command. The remote wake-up system according to claim 9, wherein, when the controlled end does not respond to the remote control packet, or the content of the response includes a flag indicating that the controlled end is shut down, the host generates a The unpowered message is displayed on the display interface. The remote wake-up system according to claim 13, wherein the host generates a remote boot packet and transmits it to the first network interface, so that the first network interface turns on the power of the controlled terminal. The remote wake-up system according to claim 9, wherein, after sending the wake-up packet, the host re-determines whether the response includes the display signal stream. The remote wake-up system according to claim 15, wherein, if the number of times the wake-up packet is sent is greater than a threshold and the response still does not include the display signal stream, the host generates an error message and displays it on The display interface.

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