24results about How to "Avoid deadlock" patented technology

The present application relates to the technical field of computer, and provides a synchronous task execution method, device, equipment and medium, the method comprises the following steps: receiving a task queue set submitted by multiple user processes; obtaining a first execution task from a first task queue in the task queue set; in the case that the first execution task is a synchronous task, simulating the first execution task based on a software language, realizing a synchronization mechanism corresponding to the first execution task; based on the synchronization mechanism and a scheduling rule, executing the execution tasks in the task queue set. The present application simulates the synchronization mechanism corresponding to the synchronous task by software to schedule the tasks in each task queue, so that each task is executed in turn according to the expected order of the user process, realizing the software to execute the synchronous task, and at the same time, the task queue that does not meet the execution condition is switched in real time according to the scheduling rule in the software simulation, avoiding waiting all the time, and further avoiding the deadlock between processes when multiple processes use the device simultaneously.

The invention discloses a layered planning method for indoor autonomous exploration of a mobile robot based on dynamic prediction, and the method comprises the steps: S1, dividing an exploration environment where the robot is located into a plurality of local subspaces, and marking the state of each subspace as an unexplored state, an explored state, an explored state or a semi-explored state according to the data of a sensor and a semantic detection result; s2, establishing a global topological graph connected with each subspace, and planning a global access path by using a traveling salesman problem model; s3, integrating a pedestrian trajectory prediction model in the selected current subspace, and evaluating and selecting a local viewpoint capable of maximizing information gain and minimizing dynamic collision risk based on a prediction result; the method has the beneficial effects that a semi-exploration state and a self-adaptive revisit mechanism are introduced, and when the door is possibly opened, the check is turned back, so that the dead angle of a map is eliminated, and the exploration completeness is improved; pedestrian trajectory prediction is incorporated into viewpoint scoring, and people deadlock is avoided.

This application relates to the field of integrated circuit design technology and discloses an on-chip network deadlock prevention method and system based on path reservation and credit backhaul. The core of the method lies in proactively locking virtual channel resources along the entire path via an independent reservation request packet along an adaptive route before data packet transmission. Combined with a "credit backhaul confirmation" mechanism, data packets are only allowed to be injected into the network after the source node receives an confirmation packet, thus transforming resource dependencies into unidirectional credit flow control. Simultaneously, reservation resource management is achieved by setting a distributed reservation state table in each router, and soft reservation and multi-path exploration mechanisms are introduced to improve resource utilization efficiency and path selection flexibility. This scheme fundamentally breaks the conditions for circular waiting, completely avoids deadlock, and eliminates the performance bottleneck of traditional methods when virtual channel resources are limited, achieving high determinism in data transmission, low blocking risk, and high efficiency in resource utilization.

The utility model relates to the technical field of automobile parts, in particular to an electric vehicle door handle quick opening mechanism which comprises an electric vehicle door body, a base is arranged on the outer side of the electric vehicle door body, a door handle body and a lock key assembly are arranged on the inner side of the base, and the lock key assembly is used for unlocking or locking the door handle body. According to the door handle body, the first handle and the second handle are detachably connected through the fastening bolt through the separable handle design, so that an operable mechanical emergency channel is provided for rescue workers when electric control completely fails, and the problem that the door handle is locked due to complete power failure caused by an accident or power shortage of a vehicle is solved; when the lock key assembly is in a normal power-on locking state, the electromagnet is powered on, generates magnetic force and attracts the iron core on the lock key, so that the lock key overcomes the tension of the spring to rotate around the hinge point, and the bent part of the lock key is inserted into the lock groove of the second handle, so that the whole door handle body is mechanically locked at the folding position.

The application discloses a bamboo bending device which is mainly composed of a speed-regulating motor, a belt transmission, a bending arm, a gas-liquid mixing cylinder, a force-adding pressure head, a bending die, a fixed die, a bending roller, a temperature control device and a heating device. The bending arm is fixed on a main shaft through a key groove, and the overall shape of the bending arm is similar to an L type. The bending die is fixed on the bending arm through a shaft, and the fixed die is fixed on a box body through a stand column. The gas-liquid mixing cylinder is fixed on a single-ear or double-ear cylinder base through a screw, and a stand plate is fixed on the cylinder base through a screw, so that the gas-liquid mixing cylinder can rotate by a certain angle on the bending arm. The force-adding pressure head is fixed on a cylinder head through a screw, and a linear slide rail is fixed on the force-adding pressure head through a screw, so that the movement track of the force-adding pressure head is positioned. The bending roller is fixed on the force-adding pressure head through a fixed shaft, so that the bending die, the fixed die and the bending roller can be just put into a bamboo and fixed in the initial position.

The application provides a wafer-level reconfigurable data stream chip, a task execution fault-tolerant method and a board, the chip comprising: a plurality of processing units, a plurality of memories corresponding to the processing units one by one and an on-chip network, in a target task data stream, if a downstream processing unit has a fault, a current processing unit determines a backup processing unit in the neighborhood of the processing unit having the fault; the memory stores a local routing table and a shadow context, the shadow context being a target task execution context sent by a processing unit in the neighborhood; the on-chip network routes the target task data stream to the backup processing unit, the backup processing unit executes the target task according to the target shadow context and to-be-processed data, through distributed storage of the shadow context and dynamic routing update, target task seamless continuation to the backup processing unit after a fault occurs is realized, the continuity of data stream execution is ensured, and the autonomous fault-tolerant capability and operation stability of the system in a high-density integrated environment are improved.

This invention proposes a distributed multi-UAV deadlock prevention method and system based on sub-target mode switching, belonging to the field of UAV trajectory planning technology. It includes: dynamically allocating flight priorities of multiple UAVs based on the principle of prioritizing near-target points; when a UAV faces deadlock risk, executing a deadlock prevention process based on sub-target mode switching; for UAVs without deadlock risk, trajectory planning is performed according to preset priorities; for UAVs with deadlock risk, a sub-target mode determination process is used to determine the mode used for deadlock prevention, thereby achieving collaborative deadlock avoidance among multiple UAVs. This invention can efficiently solve the multi-UAV deadlock problem for various highly complex flight scenarios, thus meeting the quality requirements of multi-UAV collaborative operations.

The method, device, equipment, storage medium and program product provided by the embodiments of the present disclosure can calculate the theoretical minimum physical construction period through the obtained engineering related data, check and update the subjective requirement data of the tendering party, generate subjective update data, extract the parameterized content and key parameters of the subjective update data, write into the electronic contract after determining the actual use ratio and the standby ratio, form the engineering contract, decompose the sub-division engineering into the most basic acceptable tasks according to the engineering contract, generate the right-verification voucher after the instant visa of the temporary event is checked and accepted, grade the payment after the work results in the right-verification voucher are mapped through three levels, finally generate the completion report based on the payment results, realize the whole-link penetration type information processing management from the tendering to the completion, and realize the transformation of the engineering information processing from the lagging audit to the instant locking and from the fuzzy allocation to the accurate and direct.

Embodiments of the present application provide a thread pool management method and device, and electronic equipment. The method comprises: in the case of detecting a first task, determining a first thread pool for executing a second task from a thread pool call chain, wherein the thread pool call chain is a call chain composed of multiple thread pools, and the first task is a subtask submitted during execution of the second task; selecting a second thread pool in the thread pool call chain to execute the first task, wherein the second thread pool is at a first position in the thread pool call chain, and the first position is after a second position of the first thread pool in the thread pool call chain. Embodiments of the present application enable the first task and the second task to be processed by different thread pools respectively, thereby solving the deadlock problem caused by parent and child tasks entering the same thread pool to compete for thread resources.

The present application relates to a kind of port unmanned truck intersection cooperative traffic method, system and medium, the method comprises: L1.unmanned truck vehicle sequence executes port operation task, through intersection, based on intersection road testing equipment, vehicle arrival intersection time series data information and the number data information of vehicle are acquired in real time, and according to vehicle number data information, the task trajectory data information of vehicle is obtained;L2.based on the vehicle arrival intersection time series data information and the number data information of vehicle, with the number data information of vehicle as the basis, time series priority algorithm is used to preliminary optimization vehicle traffic sequence.The present application not only determines the traffic priority of all trucks at the intersection to be passed in advance, lets part of the trucks wait, part of the trucks go first, but also can avoid the deadlock problem caused by multiple vehicles entering the intersection at the same time, improve the traffic efficiency, and further improve the work efficiency, save labor cost.

The present application relates to a hand clamping prevention detector, comprising a shell and a detection assembly in the shell, the detection assembly comprising a circular turntable, a door movable relative to the turntable, a first motor and a second motor, the turntable being provided with a plurality of test channels, each test channel being capable of inserting a detection card, the turntable being driven to rotate by the first motor and in turn driving the plurality of test channels to rotate, the detection card being capable of being inserted into the test channel when the door is opened, the door preventing the detection card from being inserted into the test channel when the door is closed, the detection assembly further comprising an elastic element for driving the door to close, the second motor being used for driving the door to open when the second motor is forward rotated and being used for offsetting part of the elastic force of the elastic element during the closing process of the door when the second motor is reverse rotated. The detector has a hand clamping prevention structure, preventing the fingers of the operator from being injured by the detector during the operation process, and avoiding the occurrence of medical accidents in the detection and diagnosis field. The present application has a simple structure, low cost and low failure.

The invention discloses a multi-AGV path planning method for avoiding path conflict and deadlock, relates to the technical field of path planning, fundamentally solves the deadlock problem by building a channel extension time window model, and the model avoids mutual independence by building the correlation between channel resources, so that the path conflict and deadlock can be avoided. The possibility of deadlock caused by formation of AGV circulation waiting is actively eliminated on the system design level, so that AGV path deadlock prevention is realized, in the aspect of traffic efficiency, a tailgating search and same-direction strategy is innovatively proposed, the bottleneck of traditional single-channel exclusive occupation is broken through, the flexibility of path planning is improved through the tailgating search strategy, unnecessary detour is reduced, and the path planning efficiency is improved. The same-direction strategy allows multiple vehicles to cooperatively use the channel under the safe interval, the single-channel throughput and the road resource utilization rate are remarkably improved, and the congestion probability and the intersection conflict are effectively reduced through combination of the two.

This invention discloses a distributed resource scheduling method and system based on action feature recognition, belonging to the field of resource scheduling technology. First, a dynamic environmental impedance field function is constructed by fusing environmental data such as real-time pedestrian density and elevator status, and a nonlinear attenuation model is used to calculate task scheduling priority. Second, multi-agent reinforcement learning is used to adaptively allocate tasks based on the real-time location, fatigue level, and battery status of the execution terminal. Finally, by collecting IMU signals from the execution terminal, extracting frequency domain features, and matching them with a preset action spectrum template, automated verification of physical work is achieved. This method effectively solves the problems of high path energy consumption, static and rigid rules, and lack of job verification in traditional scheduling, realizing dynamic optimization of resource scheduling and reliable verification of real-world operations.

The utility model discloses a router automatic restart system, which comprises a control circuit, a single-chip microcomputer NY8A051H, a JP3 wiring terminal and an MOS tube, the control circuit comprises an HT7550-1 linear voltage regulator, the HT7550-1 linear voltage regulator is used for supplying power to the single-chip microcomputer NY8A051H, the JP3 wiring terminal is connected with the single-chip microcomputer NY8A051H, and the MOS tube is connected with the single-chip microcomputer NY8A051H. A pin 2 of the single-chip microcomputer NY8A051H is connected with a negative electrode of a light emitting diode LED, and a positive electrode of the light emitting diode LED is connected with the other end of the resistor R3; at least one of a pin 3, a pin 4, a pin 6 and a pin 7 of the single chip microcomputer NY8A051H is connected with a short circuit point DE; the model of the MOS tube is 20N03D, a grid electrode of the MOS tube is connected with one end of the resistor R1 and one end of the resistor R2, and the other end of the resistor R1 is connected with a pin 5 of the single-chip microcomputer NY8A051H; the other end of the resistor R2 is grounded; and the source electrode of the MOS tube is grounded. The router automatic restart system is stable and reliable, is simple in design, can be powered on without software and hardware knowledge, and can set time before a module leaves a factory.

The application relates to the technical field of virtual reality interaction, and discloses a multi-modal feedback VR device Bluetooth interaction system, which comprises a virtual reality host device, a Bluetooth communication link, a microcontroller unit and a tactile and olfactory feedback execution module. The microcontroller unit receives virtual physical event data by using a ring buffer which is maintained with a read-write pointer, and through an overlap strategy when a write pointer chases a read pointer and a timeout reset mechanism, the real-time performance and stability of instruction processing are ensured. The microcontroller unit runs a segmented control algorithm, maps a wind speed parameter into a pulse width modulation signal, and eliminates a motor starting dead zone. Meanwhile, a hardware timer is used to load a synchronous delay parameter, and a physical response time difference of tactile and olfactory feedback is accurately compensated. The application solves the problems of communication lag, control nonlinearity and sensory timing asynchronization in multi-modal feedback.

This invention provides a wafer-level reconfigurable dataflow chip, a task execution fault-tolerant method, and a board. The chip includes: multiple processing units, multiple memories corresponding one-to-one with each processing unit, and an on-chip network. In the target task dataflow, if a downstream processing unit fails, the current processing unit determines a backup processing unit within the neighborhood of the failed processing unit. The memories store local routing tables and shadow contexts, where the shadow context is the target task execution context sent by the processing unit within the neighborhood. The on-chip network routes the target task dataflow to the backup processing unit. The backup processing unit executes the target task based on the target shadow context and the data to be processed. Through distributed storage of the shadow context and dynamic routing updates, the target task can be quickly and seamlessly continued to the backup processing unit after a failure, ensuring the continuity of dataflow execution and improving the system's autonomous fault tolerance and operational stability in a high-density integrated environment.

The utility model discloses a limit measuring device and a motor truck scale, and relates to the technical field of motor truck scales, the limit measuring device is used for the motor truck scale, the motor truck scale comprises an anti-collision base and a weighing platform, the limit measuring device is characterized in that the limit measuring device comprises an installation seat installed on the weighing platform; the winding pipe is rotationally arranged on the mounting seat; one end of the stay wire is wound on the bobbin, and the other end of the stay wire is connected with the anti-collision base; the driving assembly is arranged on the mounting seat, and the driving assembly is in driving connection with the winding pipe so as to drive the winding pipe to rotate, so that the stay wire has a shortening trend; and the measuring assembly is arranged on the winding pipe, and the measuring assembly is used for measuring the rotation angle of the winding pipe so as to measure the displacement of the stay wire. According to the technical scheme provided by the utility model, the distance between the weighing platform and the anti-collision base can be measured in real time, the weighing platform and the anti-collision base are prevented from being locked, and the weighing accuracy and reliability can be improved.

The invention discloses an automatic driving vehicle fixed-point parking method based on geometric constraint and sliding window search, and the method comprises the following steps: A1, constructing a local path boundary, and automatically finding a nearby safe and close-to-edge parking position within an allowable range of the boundary; a2, constructing a feasible solution set based on a feasible region search algorithm of a sliding window, selecting an optimal stop point through a minimization cost function, and correcting the transverse position of a target point; a3, generating a segmented jerk trajectory, taking the corrected transverse position as a strong constraint, constructing a segmented jerk optimization algorithm for an optimization problem, and generating a path which meets the kinematics constraint of the vehicle and is smooth in the station; and A4, in a finite-state machine management stopping task, introducing an automatic station jumping mechanism driven by space-time feasibility, and automatically modifying a heading path to go to the next station. A state machine management mechanism including automatic door opening and station leaving safety interlocking is established, and full-process automatic control from station entering deceleration, precise residence to safe station leaving is achieved.

The invention relates to the technical field of treatment of water, waste water, sewage or sludge, and discloses a purification process of a special medicament material for synergistic material environmental pollution treatment, which comprises the following steps: acquiring an isoelectric point of the material, monitoring polarization potential, and introducing a first regulating solution to regulate hydrogen ion concentration so that the pH value of an interface crosses the isoelectric point; a second adjusting liquid containing alkaline earth metal cations is introduced, the polarization component of an interface is changed by utilizing the hydration competition effect of ions, transient static pressure is established in micropores based on the gradient difference of the ion activity, and a fluid bridging structure is broken and adsorbate is driven to move outwards in cooperation with the repulsion vector; according to the method, the stability of an interface hydration layer is effectively broken, a microcosmic mass transfer dead zone is eliminated, secondary mineralization is inhibited while secondary anchoring of adsorbate is prevented, and full-depth activity reconstruction is achieved.

The application provides a large-span arched steel corrugated plate hoisting alignment method and device, and relates to the field of data processing. In the method, before hoisting alignment, a steel corrugated plate component coordinate system, a joint edge coordinate system and a hole group coordinate system are constructed and rigidly bound to unify the alignment reference; impedance controllable hoisting and reversible corridor constraints are introduced during hoisting, the constraint state is identified in real time by combining interface reversibility fingerprint, and irreversible constraints are avoided by lateral detour; stable insertable window center posture is determined by using zero mean limited perturbation and multiple crossing sampling; on this basis, flexible locking is realized by using a flexible guide body, and fastening is realized by combining interface fingerprint gating, thereby realizing stable and high-precision hoisting alignment without overall backoff. The technical solution provided by the application facilitates improving the accuracy of large-span arched steel corrugated plate hoisting alignment.

The application discloses an object target navigation method based on hierarchical region graph and adaptive entropy-driven exploration, and belongs to the technical field of computer vision. The method comprises the following steps: acquiring a plurality of first-view observation images, performing pixel-level segmentation to obtain a segmentation information set; calculating the area proportion based on the area of the segmentation region, and calculating the information entropy of each image; selecting the image with the highest information entropy as the optimal observation view; constructing a hierarchical region graph for the segmentation information set corresponding to the optimal observation view, wherein the hierarchical region graph comprises a plurality of hierarchical region nodes, the initial hierarchical node corresponds to the segmentation region, and each upper node is formed by expanding and fusing lower nodes; acquiring the semantic features of a target object, matching the semantic features with node features layer by layer in the order from high to low, and determining the position of the target object. Through the region segmentation and the multi-scale graph structure, the application realizes more accurate structured expression of the scene, thereby fundamentally solving the problems of difficult target searching, low-efficiency path and insufficient generalization ability.

This application provides an on-chip network data processing method, apparatus, computer device, and storage medium. The method includes: when at least one message to be transmitted is detected, adding it to a message queue; when multiple messages to be transmitted in different directions exist in the message queue, determining the state of the output port pointed to by each message; when a candidate message to be transmitted points to an idle output port, selecting a target message to be transmitted from the candidate messages according to a preset arbitration priority; repeatedly executing the step of selecting a target message to be transmitted from the candidate messages according to the preset arbitration priority until there are no candidate messages to be transmitted pointing to an idle output port in the message queue; and stopping the processing of the message queue when it contains no messages to be transmitted. This improves transmission efficiency and prevents deadlock.

This invention belongs to the field of visual navigation technology and discloses a target-driven navigation method and system based on hierarchical relationships and state regularization. The target-driven navigation method includes the following steps: Step 1, acquiring the name of the item to be found and a global observation image, and detecting and acquiring the appearance features, bounding box positions, confidence levels, and label information of various preset target items in the global observation image; Step 2, based on the data information acquired in Step 1, using a pre-trained visual navigation network for navigation to find the item to be found. The technical solution of this invention can solve the problems of difficult navigation in a home environment where the target is not visible and the deadlock problem caused by the high correlation between navigation states in the existing technology.

The embodiment of the invention provides a mobile equipment control method, system and device, and the method is applied to a data center, and comprises the steps: receiving a shared lock application request of a target equipment control end for a target shared region, the sharing lock of the target sharing area is used for controlling the authority of mobile equipment under different equipment control ends to enter the target sharing area, and the target mobile equipment is the mobile equipment under the target equipment control end; inquiring shared lock state information of the target shared area; according to the shared lock state information, feedback information for the target equipment control end is generated, and the feedback information is used for indicating the permission of the target mobile equipment to enter the target shared area. Whether to allocate the shared lock to the target mobile device or not is determined according to the shared lock state information, the passing authority of the mobile devices under different device control ends in the target sharing area can be controlled, and collision or route deadlock caused by path overlapping of the mobile devices under the different device control ends is avoided.