Notebook computer power adapter supporting video connection

Abstract

The invention relates to the field of power supply adaptation, and discloses a notebook computer power supply adaptation device supporting video connection, which comprises a detection module used for detecting the equipment number and the equipment type of port access equipment of the notebook computer power supply adaptation device through a detection circuit; the matching module is used for matching a signal processing rule corresponding to each equipment type according to the equipment type; the signal processing module is used for performing signal processing on an input signal according to the equipment type and a signal processing rule corresponding to each equipment type; the output module is used for outputting the converted signal to the port access equipment of the notebook computer power supply adapter device; and the hot plug protection module is used for protecting the port access equipment and other port equipment to work normally when hot plug occurs to the port access equipment of the notebook computer power supply adapter device in the current working environment. Therefore, the notebook computer power supply adapter device supports video connection and enables the port to adapt to forward and reverse insertion.

Description

Technical Field

[0001] The present invention relates to the field of laptop power supplies, and particularly to a laptop power adapter device supporting video connection. Background Art

[0002] Using a laptop for work or daily life has become a common phenomenon nowadays. Laptop users often have the need to handle multiple tasks simultaneously or enhance the visual experience. However, the laptop screen itself often fails to meet such requirements. In this case, connecting one or more external monitors can greatly expand the user's working space, improve work efficiency, or meet the user's daily usage needs. Currently, laptop users mainly expand external monitors in the following ways: The laptop has a display interface (such as a Type-C interface), and an HDMI adapter cable is used to connect to an external monitor through the Type-C interface for video signal transmission, or the laptop has an HDMI display interface, and an HDMI cable is inserted into the external monitor for display. The current external device solutions for laptops have the following problems

[0003] 1. There are too few ports on the laptop, making it impossible to quickly and conveniently connect to external display devices;

[0004] 2. The current HDMI ports mainly used for external display device access do not have the function of plugging in either way;

[0005] 3. External devices connected through HDMI cannot separate audio and video signals;

[0006] 4. The HDMI interface cannot connect to other types of devices except audio and video devices. Summary of the Invention

[0007] This part of the present invention is used to briefly introduce concepts, which will be described in detail in the following detailed implementation part. This part of the present invention is not intended to identify the key features or essential features of the claimed technical solution, nor is it intended to limit the scope of the claimed technical solution.

[0008] The present invention proposes a laptop power adapter device supporting video connection to solve one or more of the technical problems mentioned in the above background art part.

[0009] The present invention provides a laptop power adapter device supporting video connection, which is characterized by including:

[0010] A detection module, configured to detect the number and type of devices connected to the ports of the laptop power adapter device through a detection circuit;

[0011] A matching module, configured to match the signal processing rules corresponding to each device type according to the device type;

[0012] A signal processing module, configured to perform signal processing on an input signal according to the device type and in accordance with the signal processing rules corresponding to each device type;

[0013] An output module, configured to output a converted signal to a device connected to the port of the notebook computer power adapter device;

[0014] A hot plug protection module, configured to protect the normal operation of this device and other port devices when a hot plug occurs on the device connected to the port of the notebook computer power adapter device in the current working environment;

[0015] The output module includes:

[0016] A first judgment sub-module, configured to judge the interface direction of the interface connected to the port of the notebook computer power adapter device through a positive and negative plug judgment circuit;

[0017] A first determination sub-module, configured to determine the pin function of each pin of the interface according to the interface direction;

[0018] A configuration sub-module, configured to configure a corresponding output circuit according to the pin function of each pin, and output a corresponding transmission signal to the device connected to the port of the notebook computer power adapter device through the output circuit.

[0019] Optionally, the detection module includes:

[0020] A first acquisition sub-module, configured to acquire the level state of the pins of the port of the notebook computer power adapter device;

[0021] A second judgment sub-module, configured to determine whether there is a device connected to the port according to the level state of the pins of the port of the notebook computer power adapter device. If the level state of the pins of the port of the notebook computer power adapter device is a high level state, it is judged that there is a device connected. If the level state of the pins of the port of the notebook computer power adapter device is a low level state, it is judged that there is no device connected;

[0022] An acquisition sub-module, configured to acquire the device mask of the device connected to the port of the notebook computer power adapter device when it is judged that there is a device connected to the port of the notebook computer power adapter device;

[0023] A second determination sub-module, configured to determine the device type of the device connected to the port of the notebook computer power adapter device according to the device mask of the device connected to the port of the notebook computer power adapter device.

[0024] Optionally, the matching module includes:

[0025] A second acquisition sub-module, configured to acquire the device type of the device connected to the port of the laptop power adapter device;

[0026] A communication sub-module, configured to communicate with the device connected to the port of the laptop power adapter device using an intelligent chip to determine the signal type corresponding to the device type;

[0027] A generation sub-module, configured to generate a corresponding signal processing rule according to the signal type corresponding to the device type.

[0028] Optionally, the signal processing module includes:

[0029] An analysis sub-module, configured to acquire the device type of the device connected to the port of the laptop power adapter device and the signal processing rule corresponding to the device type, analyze each signal processing rule corresponding to the device type to determine the signal processing method of the signal processing rule;

[0030] A conversion sub-module, configured to perform signal conversion according to the signal processing method corresponding to each device type to generate a processed transmission signal;

[0031] A transmission sub-module, configured to transmit the transmission signal to the port of the laptop power adapter device corresponding to the transmission signal.

[0032] Optionally, the communication sub-module includes:

[0033] A protocol unit, configured to drive the intelligent chip, load a preset communication protocol stack, send a handshake pulse through a differential signal line, establish a bottom-layer communication link with the device connected to the port of the laptop power adapter device, negotiate communication parameters, and complete link layer protocol synchronization;

[0034] A verification unit, configured to send a device identification broadcast instruction, receive the feature code returned by the device connected to the port of the laptop power adapter device, compare the protocol whitelist stored in the intelligent chip, and verify the compliance of the device;

[0035] A mode detection unit, configured to start a multi-channel sampling circuit, collect analog signals, perform signal feature analysis, and determine the currently active communication mode of the device connected to the port of the laptop power adapter device;

[0036] An adaptive adjustment unit, configured to load the communication protocol corresponding to the communication mode into the intelligent chip according to the detection result, establish a communication channel, and write the finally identified signal type into the system register.

[0037] Optionally, the device types of the devices connected to the port of the laptop power adapter device include: laptops, power supplies, and audio-video output devices.

[0038] Optionally, the hot-swap protection module is configured to:

[0039] Detect the data transmission status of the device connected to each port of the laptop power adapter device and the port level status of the laptop power adapter device in the current working environment;

[0040] Judge the data transmission situation of the device according to the data transmission status of the device connected to each port of the laptop power adapter device;

[0041] When normal parameter data transmission is detected, it is determined that the data transmission status of the device connected to the port of the laptop power adapter device is normal. If no signal is detected or abnormal parameter data transmission is detected, it is determined that the data transmission status of the device connected to the port of the laptop power adapter device is abnormal, and the judgment result is output as the first detection result;

[0042] Judge the working status of the device according to the port level status of each port of the laptop power adapter device. If the port level status of the laptop power adapter device is detected to be in a low level status, it is determined that the working status of the port of the laptop power adapter device is abnormal;

[0043] Output the judgment result of the working status of the device connected to the port of the laptop power adapter device as the second detection result;

[0044] When the first detection result or the second detection result is output as abnormal, perform a hot-swap protection operation on the device connected to the corresponding port of the laptop power adapter device and give a reminder through the corresponding port of the laptop power adapter device.

[0045] Optionally, the device further includes a signal separation module, which is used to separate the signals of the ports of the laptop power adapter device to support the access of multiple devices and simultaneously meet the power supply requirements of multiple devices connected to the ports of the laptop power adapter device, and is configured to:

[0046] Determine the number of devices connected to the ports of the laptop power adapter device and the parameter requirements of each device connected to the ports of the laptop power adapter device;

[0047] Use the greedy algorithm to allocate the power supply line parameters according to the parameter requirements of each device connected to the ports of the laptop power adapter device;

[0048] Reserve the power margin of the laptop power adapter device according to the preset redundancy mechanism, and perform power reallocation when hot-swap of the device connected to the port of the laptop power adapter device is detected;

[0049] Detect the signal separation requirement for the device connected to the port of the laptop power adapter device. When the signal separation requirement is detected, use a de-embedding chip to separate the port signal of the laptop power adapter device;

[0050] Judge the type of the access signal of the device connected to the port of the laptop power adapter device, and output the signal of the access signal type of each device connected to the port of the laptop power adapter device to the device connected to the port of the laptop power adapter device.

[0051] Optionally, the device further includes an expansion module, which is used to modify the pin of the port of the laptop power adapter device to add a customizable expansion control that can be updated, so that the laptop power adapter device can achieve different functions, and is configured as:

[0052] Perform a hardware self-check on the laptop power adapter device. When the detection result is that the hardware is working properly, enter the working state; otherwise, send an error reminder;

[0053] Read the laptop identity code through the pin, match the preset power configuration parameter library, negotiate the initial power supply mode, and load various communication protocols carried in the intelligent chip;

[0054] Detect the type of communication protocol of the device connected to the laptop power adapter device. When it is detected that there is a communication protocol type not carried, trigger a secondary negotiation process, and record the abnormal handshake event in the work log;

[0055] When it is detected that the communication protocol type has been carried, parse the protocol message of the device connected to the laptop power supply device according to the communication protocol type, decode the protocol message, convert the decoded result into a unified format, and use a digital potentiometer for signal output;

[0056] Output the converted signal to the device connected to the port of the laptop power adapter device;

[0057] Self-check the work log after a preset time interval, obtain the record of the abnormal handshake event in the work log, retrieve according to the communication protocol type not carried in the record of the abnormal handshake event, obtain the communication protocol corresponding to the communication protocol type not carried, and update the communication protocol corresponding to the communication protocol type not carried into the intelligent chip.

[0058] The present invention has the following beneficial effects:

[0059] 1) Realize the quick docking of an external display device by improving the laptop power adapter device and the structure of the laptop power supply interface;

[0060] 2) Adapt the port of the laptop power adapter device to support plugging in either way.

[0061] 3) Through the transformation of the laptop power adapter device, enable the laptop to separate audio and video signals through the laptop power adapter device and simultaneously connect to audio and video devices.

[0062] 4) Through the transformation of the laptop power adapter device, enable the laptop to connect to other types of devices in addition to audio and video devices through the laptop power adapter device. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] In combination with the accompanying drawings and with reference to the following specific embodiments, the above and other features, advantages and aspects of the embodiments of the present invention will become more obvious. Throughout the drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic and the elements and elements are not necessarily drawn to scale.

[0064] Figure 1 FIG. is a schematic structural diagram of a laptop power adapter device supporting video connection provided by the present invention;

[0065] Figure 2 FIG. is a schematic structural diagram of an output module in a laptop power adapter device supporting video connection provided by the present invention;

[0066] Figure 3 FIG. is a schematic diagram of the port and pins of a laptop power adapter device in a laptop power adapter device supporting video connection provided by the present invention;

[0067] Figure 4 FIG. is a circuit diagram of an HDMI DEMUX chip in a laptop power adapter device supporting video connection provided by the present invention;

[0068] Figure 5 FIG. is a circuit diagram of an OR gate inside a laptop power adapter device supporting video connection provided by the present invention;

[0069] Figure 6 FIG. is a circuit diagram of a multi-functional power interface inside a laptop power adapter device supporting video connection provided by the present invention;

[0070] Figure 7 FIG. is a circuit diagram when the power interface inside a laptop power adapter device supporting video connection provided by the present invention is not connected;

[0071] Figure 8It is the DEMUX_SW circuit diagram inside a laptop power adapter device that supports video connection provided by the present invention.

[0072] Figure 9 It is the HPD signal circuit diagram inside a laptop power adapter device that supports video connection provided by the present invention. Detailed implementation manners

[0073] The present invention will be described in more detail below with reference to the accompanying drawings. Although some embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. On the contrary, these embodiments are provided to more thoroughly and completely understand the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not used to limit the protection scope of the present invention.

[0074] In addition, it should be noted that for the sake of convenience of description, only the parts related to the relevant invention are shown in the drawings. Without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0075] It should be noted that the concepts such as "first" and "second" mentioned in the present invention are only used to distinguish different devices, modules or units, and are not used to limit the order of the functions performed by these devices, modules or units or their interdependent relationships.

[0076] It should be noted that the modifications of "one" and "multiple" mentioned in the present invention are illustrative rather than restrictive. Those skilled in the art should understand that unless otherwise clearly specified in the context, it should be understood as "one or more".

[0077] The names of the messages or information exchanged between multiple devices of the present invention are only for illustrative purposes and are not used to limit the scope of these messages or information.

[0078] The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0079] As Figure 1 shown, a laptop power adapter device that supports video connection includes the following modules:

[0080] A detection module 101, configured to detect the number and type of devices connected to the port of the laptop power adapter device through a detection circuit;

[0081] A matching module 102, configured to match the signal processing rules corresponding to each device type according to the device type;

[0082] The signal processing module 103 is used to perform signal processing on the input signal according to the device type and the signal processing rule corresponding to each device type;

[0083] An output module 104, used to output the converted signal to a device connected to a port of a laptop power adapter;

[0084] The hot-plug protection module 105 is used to protect the laptop power adapter device and other port devices from working normally when the port access device of the laptop power adapter device is hot-plugged in the current working environment.

[0085] In this embodiment, the detection circuit is represented as a circuit for detecting the access and type of a device, for example: Figure 9 The HPD (Hot Plug Detect) signal circuit shown is mainly used to detect whether a device is connected to a port and determine the number of devices connected to the port, and the communication circuit connected to the smart chip is mainly used to determine the type of access device by communicating with the access device;

[0086] In this embodiment, the laptop power adapter port access device is represented as a device that is connected through the device port on the laptop power adapter and works normally, mainly through interface status detection, such as Figure 7 As shown, if HFCC1 and HFCC2 are both Low, U1 should be in the off state;

[0087] In this embodiment, the device type is represented by the category of electronic equipment connected through the port of the laptop power adapter, such as: charging equipment, audio and video display output equipment;

[0088] In this embodiment, the signal processing rules are represented as signal conversion strategies formulated for different types of devices, such as formulating an AC / DC conversion strategy for current according to the working requirements of a laptop computer;

[0089] In this embodiment, the input signal represents the original signal types received by the laptop power adapter device, including: AC power input, DC power, data signal, audio and video signal;

[0090] In this embodiment, signal processing is represented by operations of performing physical or protocol layer conversion on input signals, such as AC-DC conversion, dynamic voltage adjustment, and data processing;

[0091] In this embodiment, the converted signal is represented as an output signal adapted to the requirements of the target device after signal conversion;

[0092] In this embodiment, hot swapping refers to the act of plugging or unplugging a device while the system is running without interrupting power;

[0093] In this embodiment, other port devices refer to the devices connected to other ports when a device on the laptop power adapter device undergoes hot plugging and unplugging. For example, when a laptop is hot plugged into the laptop power adapter device, the monitor connected to the other port at the same time.

[0094] The working principle of the above technical solution is as follows: It is used to detect the number and type of devices connected to the ports of the laptop power adapter device through a detection circuit, match the signal processing rules corresponding to each device type according to the device type to process the input signal, and output the converted signal to the devices connected to the ports of the laptop power adapter device, so as to protect the normal operation of this device and other port devices when hot plugging and unplugging occurs to the devices connected to the ports of the laptop power adapter device in the current working environment.

[0095] The beneficial effects of the above technical solution are as follows: It is compatible with multiple devices and supports simultaneous connection of a computer, a monitor, etc.; it integrates hot plugging protection to ensure the safety of devices and users; it does not require other external conversion devices, is plug-and-play, and improves the practicability and convenience of the invention.

[0096] In one embodiment, as Figure 2 shown, the output module includes:

[0097] The first judgment sub-module 1041 is used to judge the interface direction of the port of the laptop power adapter device through a positive and negative plug judgment circuit;

[0098] The first determination sub-module 1042 is used to determine the pin function of each pin of the interface according to the interface direction;

[0099] The configuration sub-module 1043 is used to configure the corresponding output circuit according to the pin function of each pin, and the output circuit outputs the corresponding transmission signal to the device connected to the port of the laptop power adapter device.

[0100] In this embodiment, as Figure 8 shown, the positive and negative plug judgment circuit refers to a judgment circuit for positive and negative plug recognition. Among them, DEMUX_SW is the demux chip U1, the HFCC1 pin is the positive plug detection signal. When the male connector is not inserted, the HFCC1 of U1 is default pulled low. After the male connector is inserted correctly, the HMCC1 of the male connector is +5V, and the HFCC1 of the female connector is pulled high from low to 5V, Q2 conducts, DEMUX_SW is low, and the U1 outputs the OUT1 signal group. The HFCC2 pin of the U1 chip is the reverse plug detection signal. When the male connector is not inserted, the HFCC2 of U1 is default pulled low. After the male connector is inserted reversely, the HFCC2 of the female connector is pulled high from low, and the HFCC1 of the female connector remains low, Q2 does not conduct, DEMUX_SW is high, and the U1 outputs the OUT2 signal group;

[0101] In this embodiment, as Figure 3 shown, the pins connected to the power adapter device port are represented by 19 pins of the HDMI female connector. The functions of each pin are as follows: 1: T.M.D.S DATA2+, 2: T.M.D.S DATA2 shield, 3: T.M.D.S DATA2-, 4: T.M.D.S DATA1+, 5: T.M.D.S DATA1 shield, 6: T.M.D.S DATA1-, 7: T.M.D.S DATA0+, 8: T.M.D.S DATA0 shield, 9: T.M.D.S DATA0-, 10: T.M.D.S DATA CLOCK+, 11: T.M.D.S DATA CLOCK shield, 12: T.M.D.S DATA CLOCK-, 13: CEC: Consumer Electronics Control, selectable consumer electronics controller (not present in the cable, not connected), 14: Reserved (not present in the cable, not connected), 15: SCL (DDC clock line), 16: SDA (DDC data line), 17: DDC / CEC Ground, 18: +5V power supply line, 19: hot plug detection line;

[0102] In this embodiment, the output circuit is represented by a circuit for outputting an electrical signal;

[0103] In this embodiment, the corresponding transmission signal is represented by the type of electrical signal actually output after configuration.

[0104] The working principle of the above technical solution is as follows: When the device is inserted, first determine the direction of the connected interface to determine the functions of each pin, then configure the output circuit to adapt to this direction, and finally output the correct signal.

[0105] The beneficial effects of the above technical solution are as follows: By pin management and dynamic circuit configuration, the problem of direction sensitivity of the traditional laptop power adapter device is solved, and the practicability of the invention is improved.

[0106] In one embodiment, the detection module includes:

[0107] A first acquisition sub-module for acquiring the level status of the pins of the laptop power adapter device port;

[0108] A second judgment sub-module for determining whether a device is connected to the port according to the level status of the pins of the laptop power adapter device port. If the level status of the pins of the laptop power adapter device port is a high level status, it is determined that a device is connected. If the level status of the pins of the laptop power adapter device port is a low level status, it is determined that no device is connected;

[0109] A collection sub-module, configured to collect a device mask of a device connected to the port of the laptop power adapter device when it is determined that a device is connected to the port of the laptop power adapter device;

[0110] A second determination sub-module, configured to determine the device type of the device connected to the port of the laptop power adapter device according to the device mask of the device connected to the port of the laptop power adapter device.

[0111] In this embodiment, as Figure 5 shown, the level state of the port pin of the laptop power adapter device is represented as passing through the OR gate chip U3 to judge the level state, and its output signal DEMUX_OE is the working enable pin of U1, which is active high. When it is high level, U1 works; when it is low level, U1 does not work;

[0112] In this embodiment, the device mask is represented as a unique identification code generated by electrical signal or protocol interaction when the device is connected.

[0113] The working principle of the above technical solution is: obtain the level state of the port pin of the laptop power adapter device, determine whether a device is connected to the port according to the level state. When it is determined that a device is connected to the port of the laptop power adapter device, collect the device mask of the connected device, and use the mask to determine the device type of the device connected to the port of the laptop power adapter device.

[0114] In one embodiment, the matching module includes:

[0115] A second acquisition sub-module, configured to acquire the device type of the device connected to the port of the laptop power adapter device;

[0116] A communication sub-module, configured to communicate with the device connected to the port of the laptop power adapter device using an intelligent chip to determine the signal type corresponding to the device type;

[0117] A generation sub-module, configured to generate a corresponding signal processing rule according to the signal type corresponding to the device type.

[0118] In this embodiment, as Figure 4As shown, the intelligent chip is represented as an HDMI DEMUX chip, where pin1 and pin26 are powered by 3.3V of the chip; the function of the chip is to separate the 4-lane HDMI signal (HDMI_TXP_0&HDMI_TXN_0, HDMI_TXP_1&HDMI_TXN_1, HDMI_TXP_2&HDMI_TXN_2, HDMI_TXP_3&HDMI_TXN_3) input from the CPU into two 4-lane HDMI signals (HDMI_TX0_DP_1&HDMI_TX0_DN_1, HDMI_TX1_DP_1&HDMI_TX1_DN_1, HDMI_TX2_DP_1&HDMI_TX2_DN_1, HDMI_CLK_DP_1&HDMI_CLK_DN_1 and HDMI_TX0_DP_2&HDMI_TX0_DN_2, HDMI_TX1_DP_2&HDMI_TX1_DN_2, HDMI_TX2_DP_2&HDMI_TX2_DN_2, HDMI_CLK_DP_2&HDMI_CLK_DN_2), the HDMI_HPD_C signal is separated into two HPD signals: OUT1_HPD&OUT2_HPD; the I2C signal (DDI0_DDC_SCL_R&DDI0_DDC_SDA_R) is separated into two I2C signals (HDMI_SCL_OUT_1&HDMI_SDA_OUT_1 and HDMI_SCL_OUT_2&HDMI_SDA_OUT_2);

[0119] In this embodiment, as Figure 6 shown, communication is represented as communicating with the access device using the multi-functional power interface; the two 4-lane HDMI signals decomposed by the chip are respectively connected to the notebook DC-IN interface (female); where +20V is the power supply for the notebook, and the adapter ID pin is the identification pin of the notebook computer power adapter device, which is used to communicate with the notebook computer power adapter device to transmit information such as the power, current, and rated voltage of the device;

[0120] In this embodiment, the corresponding signal type is represented as the underlying physical signal type parsed according to the device type, such as audio signal, voltage signal, etc.;

[0121] In this embodiment, the corresponding signal processing rule is represented as a set of processing strategies formulated for the signal type, such as: power adjustment rule, dynamic voltage regulation rule, display rule.

[0122] The working principle of the above technical solution is as follows: Obtain the device type of the access device, use the intelligent chip to communicate with the device connected to the port of the laptop power adapter device, determine the corresponding signal type, and generate the corresponding signal processing rule according to the signal type.

[0123] In one embodiment, the signal processing module includes:

[0124] The parsing sub-module is used to obtain the device type of the device connected to the port of the laptop power adapter device and the signal processing rule corresponding to the device type, parse the signal processing rule corresponding to each device type, and determine the signal processing method of the signal processing rule;

[0125] The conversion sub-module is used to perform signal conversion according to the signal processing method corresponding to each device type and generate a processed transmission signal;

[0126] The transmission sub-module is used to transmit the transmission signal to the port of the laptop power adapter device corresponding to the transmission signal.

[0127] In this embodiment, parsing the signal processing rule corresponding to each device type means decomposing the signal processing rule into executable hardware operation instructions and protocol control parameters;

[0128] In this embodiment, signal conversion means performing physical or protocol layer adaptation adjustments on the original signal according to the parsing result, such as voltage and current adjustment, format conversion, etc.

[0129] The working principle of the above technical solution is as follows: Obtain the signal processing rule corresponding to the device, parse the signal processing rule, determine the signal processing method of the signal processing rule, perform signal conversion according to the signal processing method to generate a transmission signal, and transmit the transmission signal to the port of the laptop power adapter device corresponding to the transmission signal.

[0130] In one embodiment, the communication sub-module includes:

[0131] The protocol unit is used to drive the intelligent chip, load the preset communication protocol stack, send a handshake pulse through the differential signal line, establish a bottom-layer communication link with the device connected to the port of the laptop power adapter device, negotiate communication parameters, and complete the link layer protocol synchronization;

[0132] The verification unit is used to send a device identification broadcast instruction, receive the feature code returned by the device connected to the port of the laptop power adapter device, compare it with the protocol whitelist stored in the intelligent chip, and verify the device compliance;

[0133] A mode detection unit starts a multi-channel sampling circuit, collects analog signals, performs signal characteristic analysis, and determines a currently active communication mode of a device connected to the port of the laptop power adapter device;

[0134] The adaptive adjustment unit is used to load the communication protocol corresponding to the communication mode into the smart chip according to the detection result, establish a communication channel, and write the finally identified signal type into the system register.

[0135] In this embodiment, the preset communication protocol stack is represented by a multi-level protocol set solidified in the smart chip, such as a physical layer protocol, a link layer protocol, and an application layer protocol;

[0136] In this embodiment, the differential signal lines are represented as a pair of conductors for signal transmission, having signals with opposite phases;

[0137] In this embodiment, the handshake pulse is represented as a special waveform sequence used for link initialization;

[0138] In this embodiment, the bottom layer communication link represents a circuit connection channel established at the physical layer;

[0139] In this embodiment, the negotiated communication parameters are expressed as exchange capability parameters between devices and an agreement is reached;

[0140] In this embodiment, link layer protocol synchronization means ensuring that the sender and receiver use the same frame format and timing reference;

[0141] In this embodiment, the device identification broadcast instruction is represented by a device enumeration request sent by the apparatus;

[0142] In this embodiment, the feature code is represented by a set of identification information returned by the device;

[0143] In this embodiment, the protocol whitelist is represented as a list of security devices that are allowed to connect;

[0144] In this embodiment, verifying the compliance of the device is represented by verifying the legitimacy of the device through cryptography, such as verifying a digital certificate;

[0145] In this embodiment, the multi-channel sampling circuit is represented as a circuit for collecting analog signals in parallel;

[0146] In this embodiment, the analog signal is represented as a continuously changing circuit signal;

[0147] In this embodiment, the signal feature analysis is represented by extracting signal feature parameters, such as feature parameters corresponding to the video signal type;

[0148] In this embodiment, the currently active communication mode is represented as the communication configuration currently being used by the device;

[0149] In this embodiment, the communication channel is represented as an independent data transmission path established for a device;

[0150] In this embodiment, the system register is represented as a storage unit for storing key configuration parameters.

[0151] The working principle of the above technical solution is as follows: Initialize the protocol and establish a communication channel between the laptop power adapter device and the port access device, determine the current communication mode, perform dynamic adaptation, and write to the system register.

[0152] The beneficial effects of the above technical solution are as follows: Initialize the protocol and establish a communication channel between the laptop power adapter device and the port access device, determine the current communication mode, perform dynamic adaptation, and write to the system register, achieving functions of intelligent protocol switching, signal processing, and cross-protocol compatibility, enhancing the creativity and practicality of the device.

[0153] In one embodiment, the types of port access devices of the laptop power adapter device include: laptops, power supplies, and audio-video output devices.

[0154] In one embodiment, the hot-swap protection module is configured to:

[0155] Detect the data transmission status of each port access device of the laptop power adapter device and the port level status of the laptop power adapter device in the current working environment;

[0156] Judge the data transmission situation of each port access device of the laptop power adapter device according to its data transmission status;

[0157] When normal parameter data transmission is detected, it is determined that the data transmission status of the port access device of the laptop power adapter device is normal. If no signal is detected or abnormal parameter data transmission is detected, it is determined that the data transmission status of the port access device of the laptop power adapter device is abnormal, and the judgment result is output as the first detection result;

[0158] Judge the working status of each port access device of the laptop power adapter device according to its port level status. If the port level status of the laptop power adapter device is detected to be in a low level state, it is determined that the working status of the port of the laptop power adapter device is abnormal;

[0159] Output the judgment result of the working status of the port access device of the laptop power adapter device as the second detection result;

[0160] When the first detection result or the second detection result is output as abnormal, perform a hot plug protection operation on the device connected to the corresponding port of the laptop power adapter device, and give a reminder through the corresponding port of the laptop power adapter device.

[0161] In this embodiment, the data transmission state of the device connected to the port of the laptop power adapter device is represented as;

[0162] In this embodiment, the port level state of the laptop power adapter device is represented as;

[0163] In this embodiment, the first detection result is represented as whether the data transmission state of the device connected to the port of the laptop power adapter device is abnormal;

[0164] In this embodiment, the second detection result is represented as whether the working state of the device connected to the port of the laptop power adapter device is abnormal;

[0165] In this embodiment, performing hot plug protection means performing a hot plug protection operation when the data transmission state is abnormal or the device working state is abnormal;

[0166] In this embodiment, the reminder is represented as giving a reminder through the color of the port indicator light.

[0167] The working principle of the above technical solution is: Detect the data transmission state of the device connected to the current working environment and the port level state of the laptop power adapter device, judge the data transmission situation of the device according to the data transmission state of the device connected to it. When the data transmission state is abnormal or the device working state is abnormal, perform a hot plug protection operation, and give a reminder through the port of the laptop power adapter device.

[0168] The beneficial effects of the above technical solution are: Detect the data transmission state of the device connected to the current working environment and the port level state of the laptop power adapter device, judge the data transmission situation of the device according to the data transmission state of the device connected to it. When the data transmission state is abnormal or the device working state is abnormal, perform a hot plug protection operation, and give a reminder through the port of the laptop power adapter device, which enhances the security of the device and improves the practicability of the device.

[0169] In one embodiment, the device further includes a signal separation module, which is used to separate the signals of the ports of the laptop power adapter device to support the access of multiple devices, and at the same time meet the power supply requirements of multiple devices connected to the ports of the laptop power adapter device, and is configured as:

[0170] Determine the number of devices connected to the ports of the laptop power adapter device and the parameter requirements of each device connected to the ports of the laptop power adapter device;

[0171] Use the greedy algorithm to allocate power supply line parameters according to the parameter requirements of each device connected to the port of the laptop power adapter device;

[0172] Reserve the power margin of the laptop power adapter device according to the preset redundancy mechanism, and perform power reallocation when hot plugging of the device connected to the port of the laptop power adapter device is detected;

[0173] Detect the signal separation requirement of the device connected to the port of the laptop power adapter device, and use a de-embedding chip to separate the port signal of the laptop power adapter device when the signal separation requirement is detected;

[0174] Judge the type of the access signal of the device connected to the port of the laptop power adapter device, and output the signal of the type of the access signal of each device connected to the port of the laptop power adapter device to the device connected to the port of the laptop power adapter device.

[0175] In this embodiment, the parameter requirements of each device connected to the port of the laptop power adapter device are expressed as the comprehensive requirements of the access device for power supply parameters and signal parameters;

[0176] In this embodiment, the greedy algorithm is expressed as a dynamic resource allocation strategy, which can maximize the utilization of the total power according to the device priority. It mainly includes arranging the devices in descending order of power demand, preferentially allocating high-power devices, and allocating the remaining power in order. If the total power exceeds the limit, trigger a downgrade negotiation;

[0177] In this embodiment, the parameter requirements are expressed as the parameter requirements of each device for the power supply power allocation;

[0178] In this embodiment, the power supply line parameters are expressed as the actual configuration parameters of the power supply allocation for each device;

[0179] In this embodiment, the preset redundancy mechanism is expressed as the safety power buffer reserved by the system, and here the redundancy rate is 10%;

[0180] In this embodiment, the power margin is expressed as the current available power capacity of the adapter device;

[0181] In this embodiment, the power reallocation is expressed as the dynamic power adjustment and reallocation after hot plugging;

[0182] In this embodiment, the signal separation requirement detection is expressed as judging whether it is necessary to separate the mixed signal;

[0183] In this embodiment, the de-embedding chip is expressed as an application-specific integrated circuit chip that realizes signal multiplexing / demultiplexing to identify the signal type actually used by the device.

[0184] The working principle of the above technical solution is as follows: Signal separation is performed on the port signals of the notebook computer power adapter device to support the access of multiple devices, and intelligent power distribution is performed on the total power to simultaneously meet the power supply requirements of the devices connected to multiple ports of the notebook computer power adapter device.

[0185] The beneficial effects of the above technical solution are as follows: Signal separation is performed on the port signals of the notebook computer power adapter device to support the access of multiple devices, and intelligent power distribution is performed on the total power to simultaneously meet the power supply requirements of the devices connected to multiple ports of the notebook computer power adapter device. Through the collaboration of algorithms and hardware, this solution realizes the optimized management of resources in a multi-device scenario, improves the novelty of the device, and enhances the user experience.

[0186] In one embodiment, the device further includes an expansion module, which is configured to modify the pin pins of the port of the notebook computer power adapter device to add updatable custom expansion controls to enable the notebook computer power adapter device to implement different functions, and is configured as follows:

[0187] Perform a hardware self-check on the notebook computer power adapter device. When the detection result indicates that the hardware is working properly, enter the working state; otherwise, issue an error reminder.

[0188] Read the notebook identity code through the pin pins, match the preset power configuration parameter library, negotiate the initial power supply mode, and load various communication protocols carried in the intelligent chip.

[0189] Detect the communication protocol types of the devices connected to the notebook computer power adapter device. When it is detected that there is a communication protocol type that is not carried, trigger a secondary negotiation process and record the abnormal handshake event in the work log.

[0190] When it is detected that the communication protocol type is carried, parse the protocol message of the device connected to the notebook power device according to the communication protocol type, perform decoding and encoding on the protocol message, convert the decoding and encoding result into a unified format, and use a digital potentiometer for signal output.

[0191] Output the converted signal to the device connected to the port of the notebook computer power adapter device.

[0192] Perform a self-check on the work log after a preset time interval, obtain the abnormal handshake event records in the work log, retrieve according to the communication protocol types not carried in the abnormal handshake event records, obtain the communication protocols corresponding to the communication protocol types not carried, and update the communication protocols corresponding to the communication protocol types not carried into the intelligent chip.

[0193] In this embodiment, hardware self-check is represented as the automatic detection of internal hardware components when the device starts up to ensure their normal functions, such as checking voltage stability, pin connection status, etc.;

[0194] In this embodiment, error reporting and reminder is represented as the fault prompt sent to the user through software notification when the hardware self-check discovers an abnormality;

[0195] In this embodiment, the pin represents the physical interface pin of the port of the notebook power supply adapter device for laptops. By modifying its characteristics or function allocation, capabilities such as communication and power supply are extended;

[0196] In this embodiment, the notebook identity code is represented as the unique identification code of each laptop, which is used to identify the device model and power requirements;

[0197] In this embodiment, the preset power configuration parameter library is represented as a database stored in the intelligent chip, which contains power supply parameters corresponding to different device numbers, etc., and is used to quickly match the initial power supply;

[0198] In this embodiment, the initial power supply mode is represented as the default power supply scheme provided by the power adapter device according to the identity code matching;

[0199] In this embodiment, multiple communication protocols are represented as multiple communication standards for accessing devices stored in the intelligent chip;

[0200] In this embodiment, the communication protocol type of the notebook computer power adapter device accessing the device is represented as the specific protocol used by the accessed device;

[0201] In this embodiment, the secondary negotiation process is represented as triggering the dynamic protocol adaptation mechanism when a non-carried protocol is detected, such as downgrading to a compatible protocol;

[0202] In this embodiment, the abnormal handshake event is represented as an event where communication fails between the device and the adapter device due to protocol mismatch;

[0203] In this embodiment, the working log is represented as an internal file that stores the operating status of the notebook computer power adapter device, abnormal events, and protocol interaction records;

[0204] In this embodiment, the protocol message is represented as the data packet exchanged between the device and the notebook computer power adapter device during the communication process;

[0205] In this embodiment, decoding and encoding is represented as decoding the data packet exchanged between the device and the notebook computer power adapter device during the communication process;

[0206] In this embodiment, the decoding and encoding result is represented as the signal that can be processed by the notebook computer adapter device after parsing the protocol message;

[0207] In this embodiment, the unified format is represented as converting packets of different protocols into internal standard digitizer encodings;

[0208] In this embodiment, the digital potentiometer is represented as a programmable resistor device for dynamically adjusting the signal output level;

[0209] In this embodiment, the signal output is represented as sending the adjusted electrical signal to the access device through the pins;

[0210] In this embodiment, the self-check is represented as regularly checking the abnormal records in the work log;

[0211] In this embodiment, the abnormal handshake event record is represented as the event record of communication failure caused by protocol mismatch between the device and the adapter device;

[0212] In this embodiment, the communication protocol type not carried is represented as adapting to the communication protocol not currently supported;

[0213] In this embodiment, updating into the intelligent chip is represented as writing the new protocol firmware into the chip memory to realize function expansion.

[0214] The working principle of the above technical solution is as follows: When the power adapter device of the laptop starts up, it performs a hardware self-check to ensure that each module is normal, reads the device identity code through the pin, matches the power supply parameters from the preset library, establishes an initial power supply mode, and loads the stored communication protocol to detect the access device. If the protocol is supported, it parses its packets and converts them into a unified signal output. If the protocol is not supported, it records the abnormal event and triggers a secondary negotiation, while marking the protocol type to be updated, regularly checks the abnormal records in the work log, automatically retrieves the firmware of the protocol not carried, and updates it to the intelligent chip to expand compatibility.

[0215] The beneficial effect of the above technical solution is as follows: When the power adapter device of the laptop starts up, it performs a hardware self-check to ensure that each module is normal, reads the device identity code through the Pin, matches the power supply parameters from the preset library, establishes an initial power supply mode, and loads the stored communication protocol to detect the access device. If the protocol is supported, it parses its packets and converts them into a unified signal output. If the protocol is not supported, it records the abnormal event and triggers a secondary negotiation, while marking the protocol type to be updated, regularly checks the abnormal records in the work log, automatically retrieves the firmware of the protocol not carried, and updates it to the intelligent chip to expand compatibility, enabling the power adapter device of the laptop to be compatible with multiple devices through one interface and improving the practicality of the device.

[0216] The above description is only some preferred embodiments of the present invention and an explanation of the applied technical principles. Those skilled in the art should understand that the scope of the invention involved in the present invention is not limited to the technical solutions formed by the specific combination of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above inventive concept. For example, the technical solutions formed by mutually replacing the above features with the technical features (but not limited to) having similar functions disclosed in the present invention.

Claims

1. A laptop power adapter device supporting video connection, characterized in that Including: A detection module, configured to detect the number and types of devices connected to the port of the laptop power adapter device through a detection circuit; A matching module, configured to match the signal processing rules corresponding to each device type according to the device type; A signal processing module, configured to perform signal processing on the input signal according to the device type and in accordance with the signal processing rules corresponding to each device type; An output module, configured to output the converted signal to the devices connected to the port of the laptop power adapter device; A hot plug protection module, configured to protect the normal operation of this device and other port devices when hot plugging occurs to the devices connected to the port of the laptop power adapter device in the current working environment; The output module includes: A first judgment sub-module, configured to judge the interface direction of the interface connected to the port of the laptop power adapter device through a positive and negative plug judgment circuit; A first determination sub-module, configured to determine the pin function of each pin of the interface according to the interface direction; A configuration sub-module, configured to configure the corresponding output circuit according to the pin function of each pin, and output the corresponding transmission signal to the devices connected to the port of the laptop power adapter device through the output circuit.

2. The power adapter device for a notebook computer supporting video connection according to claim 1, characterized in that, The detection module includes: A first acquisition sub-module, configured to acquire the level state of the pins of the port of the laptop power adapter device; A second judgment sub-module, configured to determine whether there is a device connected to the port according to the level state of the pins of the port of the laptop power adapter device. If the level state of the pins of the port of the laptop power adapter device is a high level state, it is judged that there is a device connected. If the level state of the pins of the port of the laptop power adapter device is a low level state, it is judged that there is no device connected; An acquisition sub-module, configured to acquire the device mask of the device connected to the port of the laptop power adapter device when it is judged that there is a device connected to the port of the laptop power adapter device; A second determination sub-module, configured to determine the device type of the device connected to the port of the laptop power adapter device according to the device mask of the device connected to the port of the laptop power adapter device.

3. A laptop power adapter device supporting video connection according to claim 1, characterized in that, The matching module includes: A second acquisition sub-module, configured to acquire the device type of the device connected to the port of the laptop power adapter device; A communication sub-module, configured to communicate with the device connected to the port of the laptop power adapter device using an intelligent chip to determine the signal type corresponding to the device type; A generation sub-module, configured to generate the corresponding signal processing rules according to the signal type corresponding to the device type.

4. A laptop power adapter device supporting video connection according to claim 1, characterized in that, The signal processing module includes: An analysis sub-module, configured to acquire the device type of the device connected to the port of the laptop power adapter device and the signal processing rules corresponding to the device type, analyze the signal processing rules corresponding to each device type, and determine the signal processing method of the signal processing rules; A conversion sub-module, configured to perform signal conversion according to the signal processing method corresponding to each device type to generate a processed transmission signal; A transmission sub-module, configured to transmit the transmission signal to the port of the laptop power adapter device corresponding to the transmission signal.

5. The power adapter device for a notebook computer supporting video connection according to claim 3, characterized in that, The communication sub-module includes: A protocol unit, which is used to drive the intelligent chip, load a preset communication protocol stack, send a handshake pulse through a differential signal line, establish a low-level communication link with the device connected to the port of the laptop power adapter device, negotiate communication parameters, and complete link layer protocol synchronization; An authentication unit, which is used to send a device identification broadcast instruction, receive the signature returned by the device connected to the port of the laptop power adapter device, compare it with the protocol whitelist stored in the intelligent chip, and verify the compliance of the device; A mode detection unit, which starts a multi-channel sampling circuit, collects analog signals, performs signal feature analysis, and determines the currently active communication mode of the device connected to the port of the laptop power adapter device; An adaptive adjustment unit, which is used to load the communication protocol corresponding to the communication mode into the intelligent chip according to the detection result, establish a communication channel, and write the finally identified signal type into the system register.

6. The power adapter device for a notebook computer supporting video connection according to claim 1, characterized in that, The types of devices connected to the port of the laptop power adapter device include: laptops, power supplies, and audio / video output devices.

7. A laptop power adapter device supporting video connection according to claim 1, characterized in that, The hot plug protection module is configured as: Detect the data transmission status of each device connected to the port of the laptop power adapter device and the port level status of the laptop power adapter device in the current working environment; Judge the data transmission situation of each device connected to the port of the laptop power adapter device according to its data transmission status; When normal parameter data transmission is detected, it is determined that the data transmission status of the device connected to the port of the laptop power adapter device is normal. If no signal is detected or abnormal parameter data transmission is detected, it is determined that the data transmission status of the device connected to the port of the laptop power adapter device is abnormal, and the judgment result is output as the first detection result; Judge the working status of each device connected to the port of the laptop power adapter device according to its port level status. If the port level status of the laptop power adapter device is detected to be at a low level, it is determined that the working status of the port of the laptop power adapter device is abnormal; Output the judgment result of the working status of the device connected to the port of the laptop power adapter device as the second detection result; When the first detection result or the second detection result is output as abnormal, perform a hot plug protection operation on the corresponding device connected to the port of the laptop power adapter device, and give a reminder through the corresponding port of the laptop power adapter device.

8. A laptop power adapter device supporting video connection according to claim 1, characterized in that, The device further includes a signal separation module, which is used to separate the signals of the ports of the laptop power adapter device to support the access of multiple devices and simultaneously meet the power supply requirements of multiple devices connected to the ports of the laptop power adapter device. It is configured as: Determine the number of devices connected to the port of the laptop power adapter device and the parameter requirements of each device connected to the port of the laptop power adapter device; Use the greedy algorithm to allocate power supply line parameters according to the parameter requirements of each device connected to the port of the laptop power adapter device; Reserve the power margin of the laptop power adapter device according to the preset redundancy mechanism, and perform power redistribution when hot plugging of the device connected to the laptop power adapter device port is detected; Detect the signal separation requirement of the device connected to the laptop power adapter device port, and use a de-embedding chip to separate the signal of the laptop power adapter device port when the signal separation requirement is detected; Judge the type of the access signal of the device connected to the laptop power adapter device port, and output the signal of the access signal type of each device connected to the laptop power adapter device port to the device connected to the laptop power adapter device port.

9. The power adapter device for a notebook computer supporting video connection according to claim 1, characterized in that, The device further includes an expansion module, which is used to modify the pin of the laptop power adapter device port to add a customizable expansion control that can be updated, so that the laptop power adapter device can achieve different functions, and is configured as: Perform a hardware self-check on the laptop power adapter device, and enter the working state when the detection result is that the hardware is working properly, otherwise issue an error reminder; Read the laptop identity code through the pin, match the preset power configuration parameter library, negotiate the initial power supply mode, and load various communication protocols carried in the intelligent chip; Detect the type of the communication protocol of the device connected to the laptop power adapter device. When it is detected that there is a communication protocol type not carried, trigger a secondary negotiation process, and record the abnormal handshake event in the work log; When it is detected that the communication protocol type has been carried, analyze the protocol message of the device connected to the laptop power device according to the communication protocol type, decode and encode the protocol message, convert the decoded and encoded result into a unified format, and use a digital potentiometer for signal output; Output the converted signal to the device connected to the laptop power adapter device port; Self-check the work log after a preset time interval, obtain the abnormal handshake event record in the work log, retrieve according to the communication protocol type not carried in the abnormal handshake event record, obtain the communication protocol corresponding to the communication protocol type not carried, and update the communication protocol corresponding to the communication protocol type not carried into the intelligent chip.

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