Abstract: A hydraulic cylinder with a linear variation in tensile and compression damping, which comprises a reservoir drum, a working cylinder fixedly arranged inside the reservoir drum, a piston assembly slidably connected with the reservoir drum, and a damping-adjusting valve assembly. An energy storage is arranged in the reservoir drum, and an energy-storage chamber is formed between the energy storage and the working cylinder, a working cylinder flow passage and an energy-storage flow passage are formed on an inwall of the reservoir drum, and both are connected with the damping-adjusting valve assembly. By adjusting oil flow damping in the hydraulic cylinder using the damping-adjusting valve assembly, the hydraulic cylinder can provide damping characteristics matching with force situations according to the force situations, and ensure the elastic touch and hovering at any position during use.

Abstract: A hydraulic damper and an intelligent prosthetics. The hydraulic damper includes a housing, a piston, a piston rod, and a damping adjustment component; an energy storage chamber and a damping chamber loaded with hydraulic fluid are arranged inside the housing; the piston is movably provided in the damping chamber and separates the damping chamber into a first chamber and a second chamber, the energy storage chamber is closer to the second chamber; the piston rod is inserted into the first chamber, one end of the piston rod is connected to the piston, another end of the piston rod penetrates through one end of the housing away from the energy storage chamber; and the damping adjustment component is connected to the first chamber, the second chamber, and the energy storage chamber, respectively, to adjust resistance of movement of the piston, thereby reducing sealing difficulty and weight of the hydraulic damper.

Abstract: A hydraulic damper and an intelligent prosthetics. The hydraulic damper includes a housing, a piston, a piston rod, and a damping adjustment component; an energy storage chamber and a damping chamber loaded with hydraulic fluid are arranged inside the housing; the piston is movably provided in the damping chamber and separates the damping chamber into first chamber and second chamber, the energy storage chamber is closer to the second chamber; the piston rod is inserted into the first chamber, one end of the piston rod is connected to the piston, another end of the piston rod penetrates through one end of the housing away from the energy storage chamber; and the damping adjustment component is connected to the first chamber, the second chamber, and the energy storage chamber, respectively, to adjust resistance of movement of the piston, thereby reducing sealing difficulty and weight of the hydraulic damper.

Abstract: A method and system for neuro-feedback training are disclosed. According to certain embodiments, the method may include receiving, by a processor via a communication network, a brainwave signal measured by at least one sensor attached to a user. The method may also include determining, by the processor, a frequency distribution of the brainwave signal. The method may also include determining, by the processor, a reward in a video game when at least one first value indicative of an amount of the brainwave signal within a first frequency band meets a first criterion. The method may further include providing, to the user, a first feedback signal indicative of the reward.

Abstract: The present disclosure provides a system and a method for manipulating a robotic device. The system includes a human interface device for obtaining information associated with a position and/or movement of a user's finger using the human interface device; and a robotic device for simulating the position and/or movement of the user's finger in real time. The robotic device is in communication with the human interface device. The operating system of the robotic device of the present disclosure can accurately simulate the functions of human hand.

Abstract: Disclosed is a power supply enable circuit. The power supply enable circuit includes a multi-input NAND gate, input terminals of the multi-input NAND gate respectively connected to a plurality of activation signal sources; and a delay circuit, an input terminal of the delay circuit electrically connected to a shared activation signal source of the plurality of activation signal sources. An output terminal of the delay circuit is electrically connected to an enable input terminal of a power supply circuit after performing a logical AND with an output terminal of the multi-input NAND gate.

Abstract: Disclosed is a data transmission method including the following operations: generating, by a transmitting terminal, a data packet according to a preset generation rule, and transmitting the data packet to a receiving terminal in a streaming transmission way, wherein the data packet at least comprises a header identification code, sub-packet quantity information, data packet byte sum quantity information, a check bit, at least one sub-packet and an end-of-packet identification code; parsing, by the receiving terminal, the received data packet according to a preset parsing rule to extract the at least one sub-packet in the data packet; creating, by the receiving terminal, a data packet object, and establishing an internal link to each extracted sub-packet. The present disclosure also discloses a data transmission device and a computer readable storage medium. With the present disclosure, a starting position and an ending position of data can be determined and confusion of a data structure can be avoided.

Abstract: Disclosed is a method for attention training, which includes: acquiring a first electroencephalogram (EEG) data that is currently detected through an EEG headband worn by a user; determining an attention level of the user, based on the first EEG data; and in response that the attention level is lower than a preset attention level, controlling to execute a first program based on the attention level, wherein the first program corresponds to a training plan. A device for attention training and a computer readable storage medium are further disclosed.

Abstract: Disclosed is a power supply enable circuit. The power supply enable circuit includes a multi-input NAND gate, input terminals of the multi-input NAND gate respectively connected to a plurality of activation signal sources; and a delay circuit, an input terminal of the delay circuit electrically connected to a shared activation signal source of the plurality of activation signal sources. An output terminal of the delay circuit is electrically connected to an enable input terminal of a power supply circuit after performing a logical AND with an output terminal of the multi-input NAND gate.

Abstract: Disclosed are a teaching method and a teaching device for improving attention and a computer readable storage medium. The method includes the following operations: obtaining brainwave data of a user collected by an electroencephalograph (EEG) acquisition device, and calculating an attention value according to the brainwave data; switching to a training mode if the attention value is less than a first preset threshold; and obtaining an EEG feature of the user during training, and outputting and displaying an animation effect corresponding to the EEG feature to adjust the user's attention.

Abstract: Disclosed is a data transmission method including the following operations: generating, by a transmitting terminal, a data packet according to a preset generation rule, and transmitting the data packet to a receiving terminal in a streaming transmission way, wherein the data packet at least comprises a header identification code, sub-packet quantity information, data packet byte sum quantity information, a check bit, at least one sub-packet and an end-of-packet identification code; parsing, by the receiving terminal, the received data packet according to a preset parsing rule to extract the at least one sub-packet in the data packet; creating, by the receiving terminal, a data packet object, and establishing an internal link to each extracted sub-packet. The present disclosure also discloses a data transmission device and a computer readable storage medium. With the present disclosure, a starting position and an ending position of data can be determined and confusion of a data structure can be avoided.

Abstract: The present disclosure provides a system and a method for manipulating a robotic device. The system includes a human interface device for obtaining information associated with a position and/or movement of a user's finger using the human interface device; and a robotic device for simulating the position and/or movement of the user's finger in real time. The robotic device is in communication with the human interface device. The operating system of the robotic device of the present disclosure can accurately simulate the functions of human hand.

Abstract: A method and system for neuro-feedback training are disclosed. According to certain embodiments, the method may include receiving, by a processor via a communication network, a brainwave signal measured by at least one sensor attached to a user. The method may also include determining, by the processor, a frequency distribution of the brainwave signal. The method may also include determining, by the processor, a reward in a video game when at least one first value indicative of an amount of the brainwave signal within a first frequency band meets a first criterion. The method may further include providing, to the user, a first feedback signal indicative of the reward.

Abstract: A method and system for neuro-feedback training are disclosed. According to certain embodiments, the method may include receiving, by a processor via a communication network, a brainwave signal measured by at least one sensor attached to a user. The method may also include determining, by the processor, a frequency distribution of the brainwave signal. The method may also include determining, by the processor, a first value indicative of an amount of the brainwave signal within a first frequency band. The method may also include generating, by the processor based on the first value, a first control signal to actuate a target device wirelessly connected to the processor. The method may further include transmitting, by the processor via the communication network, the first control signal to the target device.