Remote power-on methods, related circuits, related modules and equipment

Abstract

This invention provides a remote power-on method, comprising the following steps: an isolation coupling circuit receives a communication signal and couples it out; the communication signal is a signal transmitted from an external communication source to a communication interface; an amplification and integration circuit receives the communication signal coupled out by the isolation coupling circuit, amplifies and integrates the signal to generate a pulse signal; a detection circuit receives the pulse signal and judges its characteristics based on the signal characteristics; if the characteristics match the characteristics of a power-on signal, a power-on signal is generated, which is used to directly start the system. This invention also provides a remote power-on circuit, a remote power-on circuit module, and a device. Compared with related technologies, the technical solution of this invention achieves direct detection and judgment of communication signals to trigger system power-on, has a simple circuit structure, and reduces system standby power consumption.

Description

[Technical Field]

[0001] This invention relates to the field of remote power-on technology, and in particular to a remote power-on method, a remote power-on circuit, a remote power-on circuit module, and a device. [Background Technology]

[0002] With the increasing prevalence of wireless technology, more and more devices are equipped with communication ports, and remote power-on is an important function among them. Projectors are a typical example of such devices that require some form of remote power-on functionality. This means that when the projector is in standby mode, a signal is sent from a remote control device to the projector. Upon receiving the signal and interpreting the power-on command, the projector then performs the power-on action.

[0003] Remote power-on technology in related devices relies on specific physical layers and upper-layer protocols to achieve remote power-on. The device receives instructions from remote control devices through interfaces such as Ethernet and serial ports, parses them, and then executes the remote power-on action.

[0004] However, current remote power-on methods rely on the interface protocol, and the corresponding chip must be active to receive data signals. This means the interface chip consumes power, hindering low-power standby. Furthermore, such devices may have multiple communication interfaces, such as Ethernet and HDBASE-T. The physical layer protocols and upper-layer protocols of these two interfaces are incompatible. To enable remote power-on for both interfaces, both interfaces must be active, further increasing power consumption.

[0005] Therefore, it is necessary to provide a new method, circuit, and device to solve the above-mentioned technical problems. [Summary of the Invention]

[0006] The purpose of this invention is to overcome the above-mentioned technical problems and provide a remote power-on method, remote power-on circuit, remote power-on circuit module and device that realizes direct detection and judgment of communication signals to trigger system power-on, has a simple circuit structure and reduces system standby power consumption.

[0007] To achieve the above objectives, the present invention provides a remote power-on method, applied to a terminal device with a communication interface, the remote power-on method comprising the following steps:

[0008] A remote power-on circuit is added to the physical layer of the communication interface. The remote power-on circuit includes an isolation coupling circuit, an amplification and integration circuit, and a detection circuit that are connected in sequence.

[0009] The isolation coupling circuit is used to receive communication signals and couple the communication signals out, wherein the communication signals are signals transmitted from external communication to the communication interface;

[0010] The amplification and integration circuit receives the communication signal coupled out by the isolation coupling circuit, and amplifies and integrates the signal to generate a pulse signal.

[0011] The detection circuit receives the pulse signal and makes a judgment based on the signal characteristics of the pulse signal. If the signal characteristics match the characteristics of a power-on signal, a power-on signal is generated. The power-on signal is used to directly start the system.

[0012] More preferably, the signal characteristics include signal energy and / or signal time.

[0013] More preferably, the communication interface includes multiple interfaces, each of which is correspondingly provided with a remote power-on circuit, and each detection circuit generates a power-on signal corresponding to the input communication signal; the remote power-on method further includes the following steps:

[0014] If any of the remote power-on circuits generates the power-on signal, the system will be directly started.

[0015] The present invention also provides a remote power-on circuit, applied to a terminal device with a communication interface, wherein the remote power-on circuit is disposed at the physical layer of the communication interface, and the remote power-on circuit includes:

[0016] An isolation coupling circuit is used to receive communication signals and couple the communication signals out, wherein the communication signals are signals transmitted from external communication to the communication interface;

[0017] An amplification and integration circuit is used to receive the communication signal coupled out by the isolation coupling circuit, and to amplify and integrate the signal to generate a pulse signal.

[0018] A detection circuit is used to receive the pulse signal and make a judgment based on the signal characteristics of the pulse signal. If the signal characteristics are determined to match the power-on signal characteristics, a power-on signal is generated. The power-on signal is used to directly start the system. The signal characteristics include signal energy and signal duration.

[0019] More preferably, the signal characteristics include signal energy and / or signal time.

[0020] More preferably, the remote power-on circuit includes a transformer, a diode, a capacitor, a reference voltage device, and a comparator;

[0021] The primary output terminal of the transformer is connected to the communication interface and serves as the communication signal input terminal.

[0022] The secondary output terminal of the transformer is connected to the positive terminal of the diode and ground, respectively;

[0023] The negative terminal of the diode is connected to the positive terminal of the capacitor and the positive input terminal of the comparator, respectively.

[0024] The negative terminal of the capacitor and the negative terminal of the reference voltage device are both connected to ground;

[0025] The positive terminal of the reference voltage device is connected to the positive input terminal of the comparator;

[0026] The input terminal of the comparator serves as the output terminal of the switch signal.

[0027] The primary and secondary output terminals of the transformer together form the isolation coupling circuit; the transformer, the diode, and the capacitor together form the amplification and integration circuit; the reference voltage device and the comparator together form the detection circuit.

[0028] The present invention also provides a remote power-on circuit module, the remote power-on circuit module including a logic OR device and a remote power-on circuit as described above. The remote power-on circuit includes multiple circuits, and each remote power-on circuit generates a power-on signal which is sent to the logic OR device. The logic OR device performs OR logic processing on the multiple power-on signals and merges them into a final power-on signal. The final power-on signal is used to directly start the system power-on.

[0029] More preferably, the remote power-on circuit module includes an OR gate and the remote power-on circuit, wherein the remote power-on circuit includes a first remote power-on circuit and a second remote power-on circuit.

[0030] The input terminal of the first remote power-on circuit serves as the first communication signal input terminal, and the output terminal of the first remote power-on circuit is connected to the first input terminal of the OR gate.

[0031] The input terminal of the second remote power-on circuit serves as the second communication signal input terminal, and the output terminal of the second remote power-on circuit is connected to the second input terminal of the OR gate.

[0032] The output of the OR gate serves as the final power-on signal output.

[0033] The present invention also provides a device comprising a communication interface, a communication interface module connected to the communication interface, and a remote power-on circuit as described in any of the above.

[0034] The present invention also provides a remote power-on circuit module, the remote power-on circuit module including a logic OR device and a remote power-on circuit as described above. The remote power-on circuit includes multiple circuits, and each remote power-on circuit generates a power-on signal which is sent to the logic OR device. The logic OR device performs OR logic processing on the multiple power-on signals and merges them into a final power-on signal. The final power-on signal is used to directly start the system power-on.

[0035] More preferably, the remote power-on circuit module includes an OR gate and the remote power-on circuit, wherein the remote power-on circuit includes a first remote power-on circuit and a second remote power-on circuit.

[0036] The input terminal of the first remote power-on circuit serves as the first communication signal input terminal, and the output terminal of the first remote power-on circuit is connected to the first input terminal of the OR gate.

[0037] The input terminal of the second remote power-on circuit serves as the second communication signal input terminal, and the output terminal of the second remote power-on circuit is connected to the second input terminal of the OR gate.

[0038] The output of the OR gate serves as the final power-on signal output.

[0039] The present invention also provides a device, the device comprising a communication interface, a communication interface module connected to the communication interface, and the remote power-on circuit module.

[0040] Compared with existing technologies, the remote power-on method of the present invention adopts the following steps: Step S1, receiving a communication signal using the isolation coupling circuit and coupling the communication signal out, wherein the communication signal is a signal transmitted from an external communication source to the communication interface; Step S2, receiving the communication signal coupled out by the isolation coupling circuit using the amplification and integration circuit, and generating a pulse signal after amplification and integration of the signal; Step S3, receiving the pulse signal using the detection circuit, judging based on the signal characteristics of the pulse signal, and generating a power-on signal if the signal characteristics match the power-on signal characteristics. The remote power-on method, remote power-on circuit, remote power-on circuit module, and device of the present invention add a signal coupling circuit to the physical layer of the communication interface, coupling the communication signal to the amplification and integration circuit, and judging by the signal characteristics of the pulse signal by the detection circuit to trigger the system's power-on action, thereby achieving direct detection and judgment of the communication signal to trigger system power-on, a simple circuit structure, and reduced system standby power consumption. In addition, in the case of multiple communication interfaces, the remote power-on circuit includes multiple circuits. The power-on signal generated by each remote power-on circuit is sent to the logic OR device. The logic OR device performs OR logic processing on the multiple power-on signals and merges them into a final power-on signal. The final power-on signal is used to directly start the system power-on, thereby realizing remote power-on of multiple interfaces. [Attached Image Description]

[0041] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0042] Figure 1 This is a flowchart of the remote power-on method of the present invention;

[0043] Figure 2 This is a flowchart of step S4 of the remote power-on method of the present invention;

[0044] Figure 3 This is a structural block diagram of the remote power-on circuit of the present invention;

[0045] Figure 4 This is a circuit diagram of one embodiment of the remote power-on circuit of the present invention;

[0046] Figure 5 for Figure 4 Voltage-time response diagrams of the input and output signals;

[0047] Figure 6 This is a structural block diagram of one embodiment of the remote power-on circuit module of the present invention.

Detailed Implementation Methods

[0048] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0049] Please refer to Figure 1 As shown, this invention provides a remote power-on method. The remote power-on method is applied to a terminal device with a communication interface. Specifically, a remote power-on circuit is added to the physical layer of the communication interface. This remote power-on circuit includes an isolation coupling circuit, an amplification and integration circuit, and a detection circuit connected in sequence.

[0050] The remote power-on method includes the following steps:

[0051] Step S1: Receive communication signals using the isolation coupling circuit and couple the communication signals out. The communication signals are signals transmitted from external communication to the communication interface.

[0052] Step S2: Receive the communication signal coupled out by the isolation coupling circuit using the amplification and integration circuit, and generate a pulse signal after amplifying and integrating the signal.

[0053] Step S3: Receive the pulse signal using the detection circuit, and determine its characteristics based on the pulse signal. If the signal characteristics match those of a power-on signal, a power-on signal is generated. This power-on signal is used to directly start the system.

[0054] The signal characteristics include signal energy and / or signal duration. In this embodiment, the signal energy is the signal level, and the signal duration is the signal duration.

[0055] In summary, the remote power-on method achieves remote power-on at the circuit level at a relatively low cost, reducing standby power consumption by 75% to 90% and enhancing product competitiveness. Furthermore, the circuitry for this remote power-on method is simple, its implementation does not rely on interface protocols, and the chip corresponding to the interface does not need to be operational to receive data signals. This means that power consumption when the interface chip is in standby mode can be saved, thus facilitating low-power standby. Specifically, by adding a signal coupling circuit to the physical layer of the communication interface, the communication signal is coupled to an amplification and integration circuit. The power-on action of the system is triggered by judging the signal characteristics of the pulse signal detected by the detection circuit. This achieves direct detection and judgment of the communication signal to trigger system power-on, resulting in a simple circuit structure and reduced system standby power consumption.

[0056] Please refer to Figure 2 As shown, the product equipment has multiple communication interfaces, such as Ethernet ports and HDBASE-T ports. The physical layer protocols and upper layer protocols of these two interfaces are incompatible. To achieve remote power-on for both interfaces and further reduce power consumption, this embodiment addresses this issue. In the case of multiple communication interfaces, each interface is equipped with a corresponding remote power-on circuit. Each detection circuit generates a power-on signal corresponding to the input communication signal. The remote power-on method further includes the following steps:

[0057] Step S4: If any of the remote power-on circuits generates the power-on signal, the system will be directly started.

[0058] In this step, multiple power-on signals are combined into a single final power-on signal through OR logic processing. This final power-on signal is used to directly start the system. Step S4 enables direct system startup across multiple communication interfaces, thus achieving remote power-on across multiple interfaces.

[0059] Please refer to Figure 3 As shown, the present invention provides a remote power-on circuit 100, applied to a terminal device with a communication interface. The remote power-on circuit 100 is disposed at the physical layer of the communication interface. The remote power-on circuit 100 includes an isolation coupling circuit 1, an amplification and integration circuit 2, and a detection circuit 3, which are electrically connected in sequence.

[0060] The isolation coupling circuit 1 is used to receive the communication signal TS and couple the communication signal TS out. The communication signal is a signal transmitted from an external communication source to the communication interface. Specifically, the device has a normally functional communication interface and a communication interface module connected to the communication interface. The isolation coupling circuit 1 is connected to the communication interface and receives the communication signal TS from the communication interface. The communication interface module can be de-energized, thereby saving power consumption of the device.

[0061] The amplification and integration circuit 2 is used to receive the communication signal TS coupled out by the isolation coupling circuit 1, and to amplify and integrate the signal to generate a pulse signal.

[0062] The detection circuit 3 receives the pulse signal and judges its characteristics based on these characteristics. If the signal characteristics match those of a power-on signal, a power-on signal EN is generated. The power-on signal EN is used to directly start the system. The signal characteristics include signal energy and / or signal duration. Specifically, the signal energy is the signal level, and the signal duration is the signal duration.

[0063] Please refer to Figure 4 As shown, the following is one embodiment of the remote power-on circuit 100. The remote power-on circuit 100 includes a transformer T, a diode D, a capacitor C, a reference voltage device VREF, and a comparator COMP. The specific circuit connections are as follows:

[0064] The primary output terminal of the transformer T is connected to the communication interface and serves as the communication signal input terminal TS.

[0065] The secondary output terminal of the transformer T is connected to the positive terminal of the diode D and ground, respectively.

[0066] The negative terminal of the diode D is connected to the positive terminal of the capacitor C and the positive input terminal of the comparator COMP.

[0067] The negative terminal of the capacitor C and the negative terminal of the reference voltage device VERF are both connected to ground.

[0068] The positive terminal of the reference voltage device VREF is connected to the positive input terminal of the comparator COMP.

[0069] The input terminal of the comparator COMP serves as the switch signal output terminal EN.

[0070] The primary output terminal and the secondary output terminal of the transformer T together form the isolation coupling circuit 1.

[0071] The transformer T, the diode D, and the capacitor C together form the amplification and integration circuit 2. By adjusting the primary-secondary turns ratio of the transformer T and selecting an appropriate capacitance value for the capacitor C, the voltage at the communication interface can be integrated across the capacitor to generate a DC voltage.

[0072] The reference voltage device VREF and the comparator COMP together form the detection circuit 3. When the DC voltage on the capacitor C exceeds the preset reference voltage, the comparator COMP outputs a high level.

[0073] Please refer to Figure 5 As shown, the overall effect of the remote power-on circuit 100 is as follows: When a power-on command of fixed duration (defined as T1) is transmitted on the communication interface, a high-level pulse signal with a duration of approximately T1 will be output from the comparator COMP. The power-on control circuit in the device can detect that the output of the comparator COMP has a high-level pulse signal with a duration of T1, and thus execute the power-on action. The power-on control circuit in the device can use a microcontroller (MCU), which has very low power consumption, only 0.1-0.5 watts. Applying the circuit of this embodiment can put the processing chips of communication interfaces such as Ethernet and HDBASE-T in the device into standby mode or power off. These chips consume a relatively large amount of power when operating, generally 1-3 watts. Therefore, the circuit of this embodiment can achieve the effect of reducing system standby power consumption.

[0074] It should be noted that the transformer T, the diode D, the capacitor C, the reference voltage device VREF, and the comparator COMP are all commonly used electronic components or chip circuits in this field, and will not be described in detail here.

[0075] The present invention also provides a device (not shown), which includes a communication interface (not shown), a communication interface module (not shown) connected to the communication interface, and the remote power-on circuit 100.

[0076] This invention also provides a remote power-on circuit module 200, which includes a logic OR device and a remote power-on circuit 100. Multiple remote power-on circuits 100 are included, and each remote power-on circuit 100 generates a power-on signal which is sent to the logic OR device. The logic OR device performs an OR logic process on the multiple power-on signals and combines them into a final power-on signal, which is used to directly start the system. The remote power-on circuit module 200 can simultaneously detect multiple communication interfaces. For products and devices with multiple communication interfaces, such as Ethernet ports and HDBASE-T ports, the physical layer protocols and upper-layer protocols of these two interfaces are incompatible. The remote power-on circuit module 200 enables remote power-on for both types of interfaces, further reducing interface power consumption.

[0077] Please refer to Figure 6 As shown, the following is an embodiment of the remote power-on circuit module 200. The remote power-on circuit module 200 includes an OR gate 201 and the remote power-on circuit 100, which includes a first remote power-on circuit 101 and a second remote power-on circuit 102.

[0078] The input terminal of the first remote power-on circuit 101 serves as the first communication signal input terminal TS1. The output terminal of the first remote power-on circuit 101 is connected to the first input terminal of the OR gate 201.

[0079] The input terminal of the second remote power-on circuit 102 serves as the second communication signal input terminal TS2. The output terminal of the second remote power-on circuit 102 is connected to the second input terminal of the OR gate 201.

[0080] The output of OR gate 201 serves as the final power-on signal output terminal ENT.

[0081] It should be noted that the OR gate 201 is a commonly used electronic component or chip circuit device in the art, and will not be described in detail here.

[0082] The present invention also provides a device (not shown), which includes a communication interface (not shown), a communication interface module (not shown) connected to the communication interface, and the remote power-on circuit module 200.

[0083] Compared with existing technologies, the remote power-on method of the present invention adopts the following steps: Step S1, receiving a communication signal using the isolation coupling circuit and coupling the communication signal out, wherein the communication signal is a signal transmitted from an external communication source to the communication interface; Step S2, receiving the communication signal coupled out by the isolation coupling circuit using the amplification and integration circuit, and generating a pulse signal after amplification and integration of the signal; Step S3, receiving the pulse signal using the detection circuit, judging based on the signal characteristics of the pulse signal, and generating a power-on signal if the signal characteristics match the power-on signal characteristics. The remote power-on method, remote power-on circuit, remote power-on circuit module, and device of the present invention add a signal coupling circuit to the physical layer of the communication interface, coupling the communication signal to the amplification and integration circuit, and judging by the signal characteristics of the pulse signal by the detection circuit to trigger the system's power-on action, thereby achieving direct detection and judgment of the communication signal to trigger system power-on, a simple circuit structure, and reduced system standby power consumption. In addition, in the case of multiple communication interfaces, the remote power-on circuit includes multiple circuits. The power-on signal generated by each remote power-on circuit is sent to the logic OR device. The logic OR device performs OR logic processing on the multiple power-on signals and merges them into a final power-on signal. The final power-on signal is used to directly start the system power-on, thereby realizing remote power-on of multiple interfaces.

[0084] The above description is merely an embodiment of the present invention. It should be noted that those skilled in the art can make improvements without departing from the inventive concept of the present invention, but these improvements all fall within the protection scope of the present invention.

Claims

1. A remote power-on method, applied to a terminal device with a communication interface, characterized in that, The remote power-on method includes the following steps: A remote power-on circuit is added to the physical layer of the communication interface. The remote power-on circuit includes an isolation coupling circuit, an amplification and integration circuit, and a detection circuit that are electrically connected in sequence. The remote power-on circuit includes a transformer, a diode, a capacitor, a reference voltage device, and a comparator. The primary output terminal of the transformer is connected to the communication interface and serves as the communication signal input terminal. The secondary output terminal of the transformer is connected to the positive terminal of the diode and ground, respectively; The negative terminal of the diode is connected to the positive terminal of the capacitor and the positive input terminal of the comparator, respectively. The negative terminal of the capacitor and the negative terminal of the reference voltage device are both connected to ground; The positive terminal of the reference voltage device is connected to the negative input terminal of the comparator; The output of the comparator serves as a switch signal output. The primary and secondary output terminals of the transformer together form an isolation coupling circuit. The transformer, the diode, and the capacitor together form an amplification and integration circuit; The reference voltage device and the comparator together form a detection circuit; the isolation coupling circuit is used to receive communication signals and couple the communication signals out, the communication signals being signals transmitted from external communication to the communication interface; The amplification and integration circuit receives the communication signal coupled out by the isolation coupling circuit, and amplifies and integrates the signal to generate a pulse signal. The detection circuit receives the pulse signal and makes a judgment based on the signal characteristics of the pulse signal. If the signal characteristics match the characteristics of a power-on signal, a power-on signal is generated. The power-on signal is used to directly start the system.

2. The remote power-on method according to claim 1, characterized in that, The signal characteristics include signal energy and / or signal time.

3. The remote power-on method according to claim 1, characterized in that, The communication interface includes multiple interfaces, each of which is correspondingly provided with a remote power-on circuit. Each detection circuit generates a power-on signal corresponding to the input communication signal. The remote power-on method further includes the following steps: If any of the remote power-on circuits generates the power-on signal, the system will be directly started.

4. A remote power-on circuit, applied to a terminal device with a communication interface, characterized in that, The remote power-on circuit is located at the physical layer of the communication interface, and the remote power-on circuit includes: a transformer, a diode, a capacitor, a reference voltage device, and a comparator; The primary output terminal of the transformer is connected to the communication interface and serves as the communication signal input terminal. The secondary output terminal of the transformer is connected to the positive terminal of the diode and ground, respectively; The negative terminal of the diode is connected to the positive terminal of the capacitor and the positive input terminal of the comparator, respectively. The negative terminal of the capacitor and the negative terminal of the reference voltage device are both connected to ground; The positive terminal of the reference voltage device is connected to the negative input terminal of the comparator; The output of the comparator serves as a switch signal output. The primary and secondary output terminals of the transformer together form an isolation coupling circuit; the transformer, the diode, and the capacitor together form an amplification and integration circuit; the reference voltage device and the comparator together form a detection circuit. An isolation coupling circuit is used to receive communication signals and couple the communication signals out, wherein the communication signals are signals transmitted from external communication to the communication interface; An amplification and integration circuit is used to receive the communication signal coupled out by the isolation coupling circuit, and to amplify and integrate the signal to generate a pulse signal. A detection circuit is used to receive the pulse signal and make a judgment based on the signal characteristics of the pulse signal. If the signal characteristics are determined to match the power-on signal characteristics, a power-on signal is generated. The power-on signal is used to directly start the system. The signal characteristics include signal energy and signal duration.

5. A remote power-on circuit module, characterized in that, The remote power-on circuit module includes a logic OR device and the remote power-on circuit of claim 4. The remote power-on circuit includes multiple circuits. Each remote power-on circuit generates a power-on signal which is sent to the logic OR device. The logic OR device performs OR logic processing on the multiple power-on signals and merges them into a final power-on signal. The final power-on signal is used to directly start the system.

6. The remote power-on circuit module according to claim 5, characterized in that, The remote power-on circuit module includes an OR gate and the remote power-on circuit, which includes a first remote power-on circuit and a second remote power-on circuit. The input terminal of the first remote power-on circuit serves as the first communication signal input terminal, and the output terminal of the first remote power-on circuit is connected to the first input terminal of the OR gate. The input terminal of the second remote power-on circuit serves as the second communication signal input terminal, and the output terminal of the second remote power-on circuit is connected to the second input terminal of the OR gate. The output of the OR gate serves as the final power-on signal output.

7. A remote power-on device, comprising a communication interface and a communication interface module connected to the communication interface, characterized in that, The remote power-on device also includes the remote power-on circuit as described in claim 4.

8. A remote power-on device, comprising a communication interface and a communication interface module connected to the communication interface, characterized in that, The remote power-on device further includes the remote power-on circuit module as described in claim 5 or 6.

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