3results about How to "Reliable blocking" patented technology

A method of executing a security critical application (150) on a hardware platform (100) is presented. The method comprises: executing a virtual machine monitoring program (120) having a monitoring component (130) for a security critical application (150) on a hardware platform (100); instantiating at least one virtual machine (140) by a privilege level of the virtual machine monitoring program (120) hardware platform that is lower than the privilege level of the virtual machine monitoring program (120); a list of one or more predefined actions is provided that, when executed by the processor core (112a, 112b), have relevance to the integrity and / or operation of the safety critical application (150). The method further comprises instructing, by the virtual machine monitoring program (120), the processor core (112a, 112b) to divert the control flow towards a respective handler (132) in the monitoring component (130) for the action to be performed when the action to be performed is about to be performed on the list; and executing at least the security critical application (150) over the guest operating system (142) in the at least one virtual machine (140). Further, a check of whether the action is allowed or not allowed may be performed, and / or at least one preparation for the action to be performed may be performed.

The utility model discloses a galvanized part brace sleeve cutting device which comprises a working table, a blocking strip arranged at the upper end of the working table, a notch formed in the blocking strip, a saw groove formed in the working table, a block body arranged on one side of the notch, a saw blade arranged in a through groove in one end of the block body, and a first hydraulic cylinder mechanism arranged at one end of the block body. A pressing block is arranged at the end of the second hydraulic cylinder mechanism on the workbench. The pressing block horizontally moves under the action of the second hydraulic cylinder mechanism, so that the brace sleeve is tightly pressed on the blocking strip, the position of the brace sleeve is limited through the clamping groove formed in the pressing block, the blocking block horizontally moves along the blocking strip under the action of the third hydraulic cylinder mechanism, and the end of the brace sleeve is reliably blocked. The block body horizontally moves under the action of the first hydraulic cylinder mechanism, so that the saw blade moves along with the block body to cut the brace sleeve, the cutting length is consistent, a fracture is smooth, and the device is convenient to operate, safe and reliable.

The utility model discloses a circular product connecting rod distributing device for automatic practical teaching. The device comprises a product conveying belt and a first vacuum chuck arranged at a product fixing station. The device is characterized by further comprising a product transferring assembly and a pneumatic distributing mechanism. The product transferring assembly comprises a second vacuum suction cup, a first pneumatic executing mechanism used for driving the second vacuum suction cup to do reciprocating motion in the vertical direction, and a second pneumatic executing mechanism used for bearing the first pneumatic executing mechanism and the second vacuum suction cup and driving the first pneumatic executing mechanism and the second vacuum suction cup to do reciprocating motion in the left-right direction. The second vacuum suction cup can move between the picking position on the product conveying belt and the placing position of the first vacuum suction cup. The pneumatic distributing mechanism is arranged on one side of the product conveying belt, located on the upstream of the picking position and used for selectively blocking or releasing the products. Through cooperative work of all the components, ordered material distribution, accurate picking and stable transferring of round products can be achieved.