4results about How to "No delay" patented technology

The present application relates to finite time reduced dimension observer design method and chaotic communication system, belong to information security and chaotic communication field. In view of the defects of traditional asymptotic observer slow, time is uncontrollable, sliding mode method exists chattering and message signal pollution output is difficult to construct observer, the present application establishes the chaotic drive system containing message signal embedding, constructs the equivalent system without unknown signal, designs finite time reduced dimension observer based on observer matching condition and strong observable condition. Compared with the traditional asymptotic convergence observer method, the present application can realize the complete synchronization of chaotic system within the user preset time, adopts continuous control law without chattering, and the message signal can be accurately recovered through algebraic formula. The synchronization time of the present application is controllable, the convergence speed is fast, the recovery precision is high, and the robustness is strong, which is suitable for various chaotic secure communication scenes, effectively improves the communication real-time, security and engineering practicability.

The utility model relates to the field of gas electricity fast insertion, specifically discloses a kind of coupler device applied to gas electricity fast insertion wireless communication and power supply, including coupling module one and coupling module two, coupling module one and coupling module two can be mutually assembled, and wireless communication and wireless power supply are carried out between coupling module one and coupling module two assembled together;Avoid the circuit failure problem caused by the problems such as pin corrosion, pollution, distortion when pin connection;Realized quick connection, mute, beautiful, stable and reliable connection mode, with 60GHz V band transceiver. Gigabit ethernet short-range non-contact connection. Full duplex, horizontal transmission, control automatic negotiation. Used in pairs, no contact therefore no wear and tear and maintenance.

This invention relates to the field of medical device technology and discloses a visual respiratory secretion negative pressure suction device, comprising: a collection bottle made of transparent material with a visible cavity, the top of which is provided with an air inlet and an air outlet for establishing a negative pressure passage and observing the secretion collection status in real time; and a switchable connector detachably connected to the air inlet, constituting an integrated dynamic tube diameter control unit, including a central seat and a rotary switching plate arranged coaxially. The central seat is provided with multiple sets of first through-holes along the axial direction, and the flow cross-section of each set of first through-holes decreases in a stepped manner. This device significantly improves the precise matching capability of secretion drainage. By using the selection of the suction tube diameter as a pre-forced step and forming a physical cascade match with the multiple sets of first through-holes in the switchable connector that decrease in a stepped manner, secretions of different viscosities can be drawn out under optimal flow resistance conditions.