35results about How to "Easy to retrofit and upgrade" patented technology

The invention relates to a safety single-punch controller for a punch. The safety single-punch controller comprises a buffer head and a shell, as well as a hook plate, a middle plate, a sliding plate, a pressing plate, a swing rod, a lever, a locking block and a locking wheel which are arranged in the shell, wherein the swing rod is arranged on the shell through a pivot; the buffer head is arranged at the outer end of the swing rod; the inner end of the swing rod is linked with the hook plate; a moving plate hole is arranged in the middle of the sliding plate and internally provided with a moving plate with height being less than that of the moving plate hole; the middle of the moving plate is also provided with a sliding block hole that is internally provided with a sliding block; the inner end of the sliding block passes through the middle plate and the hook plate in sequence; a spring is horizontally arranged inside the body of the sliding block; the inner end of the spring is horizontally propped up inside the body of the sliding block and the outer end thereof is horizontally propped on an outer cover of the sliding block; the outer cover of the sliding block is fixedly connected with the moving plate; and the surface of the sliding block, contacted with a slopping surface of the middle plate, is also an inclined surface. The safety single-punch controller has compact structure, matching reliability of all components, small volume and prevention of faulty operation resulting to injure in work.

The blood vessel recognition method and device is a method for quickly identifying and identifying people with biometric technology, and its operation steps are as follows: a. Blood vessel texture image acquisition: irradiate the collected blood vessel parts with near-infrared auxiliary light, and collect blood vessel texture images ; b. Preprocessing of image texture: use the standard deviation threshold tracking method to separate the background, determine the foreground and background of the image, and then perform binary denoising and refinement; c. The authentication problem is transformed into a point pattern matching problem; d. Establishing a database: when building a file, the point coordinates of the singular point position 转化为 Store the polar coordinates in the database as a file template; e. Feature matching: according to the principle of first locking the reference position and then comparing, when comparing blood vessel textures, use the template stored in the database above and the user PID number to form Original feature data template.

The invention discloses a flow-stopping type two-dimensional liquid chromatogram adopting two multi-way valves as switching devices and an application thereof. The two-dimensional liquid chromatogram comprises a first-dimensional separating part, a flow-stopping switching device and a second-dimensional separating and detecting part, wherein the flow-stopping switching device consists of two multi-way valves; the multi-way valve for stopping flow is connected with the first-dimensional separating part, and the multi-way valve for switching is connected with the second-dimensional separating and detecting part. The flow-stopping type two-dimensional liquid chromatogram disclosed by the invention has the advantages that an outflow component of the first-dimensional liquid chromatogram is connected to two adjacent input ends of the multi-way valve, and when the sampling state is ended, the valves are rotated simultaneously at the moment when the flowing speed of a first-dimensional liquid chromatographic pump is stopped, and the pressure of a first-dimensional liquid chromatographic column can be maintained, so that the problem of large pressure change when the flow is stopped is solved, and the capabilities of separation and analysis are greatly improved.

The present invention provides a multi-screen and multi-media interaction system based on C / S architecture. The system comprises a server and at least one client. The client comprises a user interaction interface and a message communication module, wherein the user interaction interface performs response to the user's operation, and the message communication module communicates with the server. The server is at least connected with a display screen, the server comprises the message communication module, a client management module, a screen management module, a multi-media management module anda remote operation control management module, wherein the message communication module is configured to communicate with the at least one client, the client management module manages the at least oneconnected client, the screen management module manages screen information, the multi-media management module manages the operation condition of the multi-media resources, and the remote operation control management module is configured to allow the at least one client to control the server. The system can perform collaboration when multiple people employ multiple machines to perform demonstration, and is high in flexibility.

The invention discloses a wireless intelligent dual-control lock and an operating method thereof. The dual-control lock comprises a lock body part and a lock cover part, wherein a lock bolt is arranged in the lock body part, a wedge-shaped block is arranged at the right end of the lock bolt, and a notch is formed below the middle part of the lock bolt; a rotatable shifting block is positioned at the right end of the notch of the lock bolt, and a gap for limiting the rotation of the shifting block is formed on a main body of the shifting block; a microswitch for transmitting the opening state of the dual-control lock to an external computer control unit wirelessly is arranged on the right side of the wedge-shaped block; a direct-acting electromagnet is arranged on the right side of the shifting block and is fixed by a pressing plate, and a movable electromagnet sliding rod and an induction coil are arranged in the direct-acting electromagnet; and a lock block is arranged above the electromagnet sliding rod, and the upper end of the lock block is connected with a lock block pressure spring. The lock cover part comprises a lock cover, an adapter assembly and a lock core; and the adapter assembly comprises a contact pin, a joint, a printed circuit board (PCB) and a film for isolating the joint from the PCB board.