21 results about "Spin lock" patented technology

The utility model discloses a spin lock type quick-release sliding door sliding wheel, relates to the technical field of sliding door sliding wheels, and aims to solve the problems that sliding wheels of an existing sliding door sliding wheel assembly are fixed to a mounting surface through screws, the sliding wheels are quick-wear parts, the surfaces of the sliding wheels are easy to wear along with the increase of service time, non-positive force is generated, a sliding door is unsmooth to pull, and the service life of the sliding door is influenced. And a screw type connection mode is adopted, so that the sliding wheel is inconvenient to disassemble and assemble. The positioning groove is formed in the upper end of the sliding wheel mounting seat, a positioning seat is mounted in the positioning groove, a boss is arranged in the middle of the upper end of the positioning seat, a narrow-channel limiting hole is formed in the upper end of the boss, a positioning head through hole is formed in one side of the narrow-channel limiting hole, and a positioning head is arranged in the positioning head through hole. The positioning head through hole is communicated with the narrow channel limiting hole, a kidney-shaped groove is formed below the positioning head through hole and the narrow channel limiting hole, and a clamping piece is arranged above the boss.

The invention discloses a self-locking oil cylinder in the technical field of hydraulic instruments, and aims to solve the problems that a self-locking structure is too complicated and the execution of a self-locking function is too tedious in the prior art. The method comprises the steps that during use, oil pressure in an oil cylinder body changes according to the trend, a piston rod conducts telescopic motion driving, after the position of the piston rod is stable, a spin lock nut is adjusted to abut against a first check block, and if the oil cylinder body leaks inwards, the piston rod has the trend that the piston rod passively stretches out and draws back under the influence of loads, and the spin lock nut is blocked by the first check block; due to the fact that the spin lock nut is connected with the piston rod, the position of the piston rod can be kept fixed even on the premise that internal leakage of the oil cylinder body occurs. The outer sleeve assembly has the effect of preventing the oil cylinder body from rotating and also prevents the piston rod and the spin lock nut from rotating, so that the position stability of the piston rod is ensured; and the operation of adjusting the wire feeding amount between the piston rod and the spin lock nut is easy, so that the self-locking oil cylinder provided by the invention is simple in self-locking structure and convenient in self-locking function.

The application discloses a kind of spin latches based on ultrafast magneto-optical dynamics, construction method and system, belong to spin dynamics technical field, the basic function of RS latch is realized by the angle of Co4&gamma-Graphyne system spin state control, successfully designed with RS latch as the foundation spin latch latch, the logic unit consumed is less, compared with the traditional latch, avoid the influence of glitch, and the entire completion time reaches ultra-high speed sub-picosecond, guarantee degree is more than 95%.This provides a train of thought for the design and application of new generation spin latch.

The application discloses a kind of hardware spinlock logic interval check devices supporting multiprocessor programming, including interface control module and logic control module, interface control module includes bus interface, n input message queue, n return message queue and register control module, logic control module includes spinlock control module, logic interval check control module, logic interval information storage array and spin queue.N input message queue is connected with external n microprocessor respectively, for receiving and storing input message from microprocessor, spinlock control module is connected with n input message queue, register control module, logic interval check control module, spin queue, n return message queue, register control module is connected with bus interface.The application reduces the software overhead in solid state disk controller, including reducing the node queue, inter-core interaction queue in software maintenance on-chip cache resource occupation, improve the efficiency of interval check.

A kind of container quick loading and unloading handling device, including body device, two identical arm supports, for driving body device and the synchronous running of two arm supports multiple running devices, two the arm supports are symmetrically arranged on the left and right sides of body device side by side, the opposite inner side of two arm supports is equipped with the spin lock for being fastened with container corner fittings, each the arm support includes rear arm support, the rear end of the rear arm support is connected in the side of body device by connecting rod device, the front side of rear arm support is equipped with the front arm support that can be telescopic with linear drive device;Multiple the running device is symmetrically distributed on the outer side of two arm supports and body device, the running device includes lifting drive device, rotatable rudder wheel being arranged at the lower end of lifting drive device outer side;Save labor, shorten operation time, improve loading and unloading, transport efficiency.

The invention provides an efficient compact trolley with a shielding function for a crane. The efficient compact trolley comprises a hoisting mechanism, a trolley running mechanism, an upper shielding door mechanism, a lower shielding door mechanism, an upper and lower shielding door quick clutch device, a shielding cylinder, a shielding cylinder jacking mechanism and a trolley frame, a gear motor and the like of the hoisting mechanism are arranged outside a shielding cylinder, a fixed pulley block is arranged at the top, an electric lifting appliance is arranged inside, and double-steel-wire-rope winding design is unique; the upper shielding door mechanism and the lower shielding door mechanism are each composed of a frame, a door body, a motor and the like and are in a special bidirectional opening and closing mode. The upper and lower shielding door quick clutch devices are linked through an electric push rod and a spin lock insert key; and the shielding cylinder is fixed on a spiral elevator of the jacking mechanism. The trolley optimizes a storage tank loading and unloading operation method, improves efficiency, reduces vertical shaft opening time and radiation dose, combines the storage tank and a shielding plug lifting mechanism, is more compact in structure, is suitable for loading, unloading and transferring spent fuel of a nuclear power station and the like, and improves safety and environmental protection performance of equipment.

The present application relates to container sling technical field, specifically speaking, it is a kind of new monorail crane sling for material container;Including upper beam and the lower beam being rotatably connected by main motor below the upper beam;The upper beam is connected with cable through pulley;The lower beam lower surface four corner positions are provided with angle groove;The left end inside of the lower beam is provided with the drive slot being communicated with two angle grooves;The upper end of the angle groove is rotatably connected with lock seat;The lower end of the lock seat is connected with the spin lock extending to the lower angle groove;Double-head oil cylinder is fixedly connected in the drive slot inner wall;The present application is matched with the inner mouth of container by positioning strip, inclined strip, realizes the accurate alignment of spin lock and lock groove from the inside of container, compared with the existing outside overturning guide positioning mode, without sufficient activity space in the periphery of container, can be used normally in the narrow environment of underground in the insufficient space around container, avoid jam and alignment deviation, and then improve docking operation efficiency, satisfy the precise lifting demand.

The utility model belongs to the technical field of computer peripheral auxiliary equipment, and provides a docking station with a hand drawing board, the docking station comprises a main body, a reel and a spin lock, the main body is provided with an expansion interface; the hand drawing board is arranged in the main body, and an opening for the hand drawing board to extend out is formed in the main body; the winding drum is arranged in the main body, the hand drawing board is a flexible board, and the hand drawing board can be wound on the winding drum; one end of the hand drawing plate is fixed on the winding drum, and the other end of the hand drawing plate extends out of the opening of the main body to be pulled out by a hand; an elastic piece is arranged in the winding drum, and the elastic piece is used for enabling the winding drum to have rotating force so as to drive the unfolded freehand drawing board to roll back; the spin lock is arranged on the main body, and the spin lock is used for being operated by a hand so as to be tightly pressed on the unfolded hand drawing plate. The technical problems that a hand drawing board in the prior art is large in occupied space and inconvenient to store and carry outdoors are solved.

The invention discloses a method and a device for optimizing a queue spin lock in a high-concurrency scene, and belongs to the technical field of operating systems. The method comprises the following steps: configuring an equal lock duration for a request node applying for a spin lock; determining the occupancy condition of the spin lock based on the global identification bit; when the spin lock is occupied, whether a spin lock succession node corresponding to the spin lock is empty or not is determined based on the first judgment identification bit; when the request node is empty, the request node is used as a spin lock succession node, and the spin lock succession node spins to wait for the spin lock to be released; when the spin lock is not empty, a waiting queue corresponding to the spin lock is obtained, and each non-queue-tail node in the waiting queue spins and waits to become a queue-tail node; waiting for a queue tail node of the queue to spin and wait to become a spin lock succession node, and waiting for the spin lock to release by the spin lock succession node. According to the invention, the overall performance and the resource utilization rate of the operating system in the multi-core processor environment are improved.

The invention provides a multi-core platform spin lock management system based on priority scheduling and a control method thereof, a spin lock is provided with a linked list corresponding to the spin lock, and corresponding tasks run by the second core are added to different positions of the linked list according to the priority of the tasks run by the second core which initiates a use request for resources. Setting the current state of the task as a waiting state; after the first core releases the spin lock, sequentially selecting the first second core from the linked list, adjusting the current state of the running task of the first core to be an awakening state, confirming that the current second core has the spin lock corresponding to the resource at the moment, and further confirming that the current second core obtains the right to use the resource; no matter how many CPU processing cores are managed in the operating system, the cores with high-priority task running requirements can preferentially acquire the spin lock, so that the tasks running on the cores can preferentially use corresponding resources, and the real-time performance and the certainty during scheduling of the operating system are improved.

The utility model relates to a maintenance platform for an electric stacking machine, and belongs to the technical field of maintenance of electric stacking machines. Comprising a bottom frame and a bottom plate connected with the bottom frame, a first front stand column, a second front stand column, a second rear stand column and a first rear stand column are arranged at the four corners of the bottom frame respectively, a left guardrail is arranged between the first front stand column and the first rear stand column, and a right guardrail is arranged between the second front stand column and the second rear stand column; a front guardrail is arranged between the first front stand column and the second front stand column, a rear guardrail is arranged between the first rear stand column and the second rear stand column, and the top of the first rear stand column and the top of the second rear stand column are each provided with a set of suspended ceiling corner fittings matched with the spin lock device. The utility model has the following beneficial effects: the electric stacking machine can be used for controlling the lifting of the overhauling platform, so that the overhauling range of the whole machine is expanded, the maintenance of the stacking machine is facilitated, and the risk of accidents in the overhauling process is reduced; maintenance personnel can work more intensively, and the maintenance quality and efficiency are improved.

The application provides a priority scheduling-based multi-core platform spin lock management system and a control method thereof. The spin lock is provided with a linked list corresponding to itself. According to the priority of a second core that initiates a use request for a resource, the corresponding task of the second core is added to different positions of the linked list, and the current state of the task is set to a waiting state. After a first core releases the spin lock, the second core with the highest order in the linked list is selected in sequence, and the current state of the running task of the second core is adjusted to a wake-up state. At this time, it is confirmed that the current second core has the spin lock corresponding to the resource, and then it is confirmed that the current second core obtains the use right of the resource. No matter how many CPU processing cores are managed in the operating system, the core with a high-priority task running demand can obtain the spin lock in priority, and then the running task thereon can use the corresponding resource in priority, thereby improving the real-time performance and certainty of the operating system scheduling.

The application discloses a self-stabilized electric lifting unloading device for containers and relates to the technical field of electric lifting, and provides a self-stabilized electric lifting unloading device for containers, which comprises a main beam and a support arm, the support arm is located at the two ends of the main beam, a spin lock is arranged on the support arm, the spin lock can be automatically locked on the container, support seats are arranged at the two ends of the main beam, pulley pieces are arranged on the support seats, steel wires are arranged around the pulley pieces, the steel wires are connected to electric lifters, detection assemblies are arranged at the middle positions of the main beam, and the detection assemblies are used for detecting whether the main beam is inclined; when lifting operation is performed, the electric lifters provide power, the containers fixed by the spin locks are lifted through cooperation between the steel wires and the pulley pieces, and in order to prevent the containers from being inclined during lifting, the angles of the main beams are detected through the detection assemblies, and the positions of the main beams are adjusted through corresponding mechanisms.

This invention discloses a lock-aware bounded delay preemption method and a computer-readable medium for an electronic device. Between the guest operating system and the virtual machine monitor, a shared memory control block is established for each dynamically scheduled virtual CPU, containing a lock holding count variable, a delay preemption timestamp variable, and a maximum delay threshold. The guest operating system modifies the spinlock release mechanism and initiates a virtual CPU scheduling request based on the aforementioned variables. The virtual machine monitor executes scheduling by combining the variables and the maximum delay threshold. This invention achieves precise cross-layer synchronization of virtual CPU lock holding states, allowing the virtual machine monitor to directly perceive the spinlock holding state and avoid blind preemption. Its bounded delay mechanism constrains the preemption duration without breaking the original scheduling semantics and resource allocation rules. It requires no additional hardware support or framework reconstruction, preserves the system resource scheduling logic, ensures resource utilization and stability in hybrid scheduling scenarios, and adapts to the real-time and non-real-time service deployment requirements of multi-core virtualization platforms.

The utility model discloses a child restraint system capable of being positioned on a vehicle seat. The child restraint system comprises a supporting base; the child seat is connected to the supporting base, and the child seat can rotate around the axis relative to the supporting base; the spin lock is used for selectively locking rotation of the child seat relative to the supporting base; and an indicator associated with the spin lock, the indicator being movable in response to movement of the spin lock between a locked position and an unlocked position to visually indicate to a user when the spin lock is in the locked position and when the spin lock is in the unlocked position.

The invention provides a mutual exclusion synchronization mechanism optimization method and device based on a FreeRTOS SMP, equipment and a medium, and relates to the field of FreeRTOS kernel design, and the method comprises the steps: in a FreeRTOS SMP environment, integrating an embedded lock in each kernel object; the embedded lock is a special spin lock for each kernel object; the method comprises the steps of determining a first kernel object to be accessed based on a global task, obtaining an embedded lock of the first kernel object to be accessed through a first core, disabling local interruption of the first core, and accessing the first kernel object to be accessed through the first core; the embedded lock of the first kernel object to be accessed is a first embedded lock; and after the access is completed, the first core is allowed to be locally interrupted, and the first embedded lock is released. According to the scheme, the parallel execution efficiency and the real-time response capability of the multi-core system are improved.

The invention provides a spin lock implementation method and device based on hardware semaphore, equipment and a medium, and relates to the field of embedded operating systems, the method comprises the following steps: binding a spin lock with the hardware semaphore, and allocating a counting register to the spin lock; if the first core requests to acquire the spin lock, verifying whether the current holder of the hardware semaphore is the first core; if yes, reading a count value for validity check, and if valid, adding 1 to the count value and returning; if the core is not the first core, hardware semaphore locking is called; after the hardware semaphore is obtained, whether a current holder is a first core is verified, if yes, whether a count value is 0 is verified, and if yes, 1 is added to the count value, and a memory barrier instruction is inserted; if the first core requests to release the spin lock, verifying whether the first core is a holder of the spin lock; if yes, subtracting 1 from the count value, judging whether the count value is 0 or not, and if yes, calling hardware semaphore for unlocking to complete lock release. The scheme can reduce system power consumption.

The utility model relates to the related technical field of containers, in particular to a container spreader spin lock opening and closing detection device which comprises a plate body, four lug blocks are symmetrically arranged on the left side and the right side of the plate body front and back, a hanging ring is arranged in the middle of the top end of the plate body, and the lug blocks vertically penetrate through and are in sliding connection with sliding blocks. A mounting block is fixedly connected to one side of the top of the sliding block, a pressure sensor is arranged at the top end of the lug block, and the pressure sensor is matched with the mounting block; the lower portion of the sliding block is connected with the upper portion of the spin lock, and the lower portion of the spin lock is fixedly connected to the top end of the container.

This invention discloses a method for dynamic resource scheduling in collaboration between virtualization and operating systems, belonging to the field of collaborative resource scheduling technology. This invention achieves real-time communication between the virtualization layer and the operating system by constructing a bidirectional communication channel based on shared memory and event-driven mechanisms. Combined with a three-level dynamic mapping mechanism, it accurately maps operating system process priorities to virtualization layer vCPU scheduling weights. This, along with refined collaborative scheduling of CPU and I / O resources and load peak / valley prediction, effectively avoids resource allocation misalignment issues, significantly improves physical resource utilization, and is suitable for high-density deployment scenarios with multiple virtual machines. Furthermore, targeted designs such as spinlock-driven forced synchronization scheduling, dynamic adjustment of vCPU time slices, I / O priority pass-through, and queue weight allocation reduce response and processing latency for critical services, ensuring service quality.

Disclosed are techniques for providing scalable spinlocks for non-uniform memory access (NUMA). In some examples, a global spinlock used to protect access to a shareable resource is protected by multiple local spinlocks, each of which is configured to control access to the global spinlock. In a multi-socket NUMA system, the global spinlock is assigned to one of the sockets, while the local spinlocks are distributed across multiple sockets. In some embodiments, a local spinlock is assigned to each of the multiple sockets. In other embodiments, the multiple local spinlocks may be evenly distributed across the NUMA sockets. When contention for the global spinlock is low, a process may attempt to acquire the global spinlock directly. Conversely, when contention for the global spinlock is high, a process may first acquire one of the local spinlocks associated with the global spinlock before attempting to acquire the global spinlock.

The utility model discloses a container spreader spin lock maintenance tool and relates to the technical field of container spreader spin lock maintenance, the container spreader spin lock maintenance tool comprises a jacking rod, a locking clamp and a detection scaleplate, the jacking rod comprises a pressing rod, one end of the pressing rod is provided with a supporting leg and a supporting head, the supporting leg is arranged on one side of the pressing rod in a protruding mode, and the supporting head is arranged on the other side of the pressing rod. The supporting head is located on the other side of the pressing rod, and the included angle between the extending direction and the length direction of the pressing rod is an obtuse angle. The locking clamp comprises a clamp head, and the clamp head can be supported between an upper mounting plate of the lifting appliance spin lock and a lifting pin collision block of the lifting pin mechanism; the detection scale comprises a detection block, and the thickness of the detection block is not larger than the sensing distance of an unlocking and locking sensor on the lifting appliance spin lock. The lifting pin rod solves the technical problem that in the prior art, time and labor are wasted in the lifting process of the lifting pin rod, meanwhile, the lifting pin rod can be conveniently maintained in the jacked state, and potential safety hazards are avoided.