56results about How to "Avoid deadlock situations" patented technology

The invention provides an ESD detection method and device and an ESD debugging method and device. The ESD detection method comprises the steps that an input file is received; a netlist of a corresponding layout file is extracted via a technical tool file; the types of ESD protection devices arranged in circuit units mounted on a power line in the netlist are detected; distribution range of all the circuit units in the netlist is acquired by detecting the distribution coordinates of the devices in the circuit units of the netlist; the specific value of distribution range of all the circuit units to distribution range of top layer circuit units in the netlist is calculated; when the specific value is greater than or equal to a first preset value, the circuit units are judged to include corer devices, and whether the types of the ESD protection devices are the ESD protection devices suitable for the core devices is judged; when the types of the ESD protection devices are the ESD protection devices unsuitable for the core device, the circuit is judged to violate the ESD design rules; and when the specific value is less than the first preset value, whether the circuit units include the core devices is detected. Detection time is reduced by the method and the device.

A method for calling on resource in multi-liner ¿C program processing includes placing operation of linear ¿C program on resource in pre-liner ¿C program, generating message when resource call ¿C on is requested by linear ¿C program and placing it in message queue of pre-liner ¿C program, triggering out operation of linear ¿C program on resource by transmitting message according to queue management mechanism.

The invention discloses an anti-locking control method for turn-back region running of a rail intersecting train. The method includes the steps that a rail access transaction region and a turn-back region are arranged; the train checks whether the rail access transaction region is locked or not, if the rail access transaction region is locked, the train waits for the rail access transaction region to be unlocked in front of the rail access transaction region, and if the rail access transaction region is not locked, the train enters the rail access transaction region; the train reaches the rail access transaction region and checks whether the turn-back region is occupied by another train or not, if the turn-back region is occupied by another train, rail access is not transacted, and the train waits in the rail access transaction region; if the turn-back region is not occupied by another train, the train obtains the use right of the turn-back region, rail access is transacted, and the train enters the turn-back region; the train reaches a turn-back point, and the rail access transaction region is unlocked; and after the train leaves the turn-back region, the turn-back region occupation right is released. By the adoption of the method, the train can be accurately controlled and dispatched, the train efficiently passes through the turn-back region in order, and the situation that the train is locked in the turn-back region is avoided.

The invention relates to a task scheduling method and device, computer equipment and a storage medium. The method comprises the following steps: mapping tasks in a task set to corresponding processorsin a processor set according to a mapping relationship; respectively dividing each task mapped to the same processor into corresponding threads; according to a preset scheduling mode, obtaining the execution sequence of the tasks divided into the threads, wherein the preset scheduling mode comprises at least one of a global scheduling mode, a local scheduling mode and a static scheduling mode. Byadopting the method, the tasks in the task set can be mapped to the corresponding processors in the processor set; then, each task is divided into corresponding threads; the execution sequence of thetasks in each thread is obtained according to the preset scheduling mode, so that the processor can correspondingly execute the corresponding tasks according to the execution sequence, deadlock of the processor in the task processing process is avoided, and the task processing performance of the processor can be improved to the maximum extent.

The invention relates to the field of big data, and discloses a data updating method based on an updating mark and related equipment, and the method comprises the steps: presetting a data updating condition, and obtaining a data updating request; when the to-be-updated data corresponding to the data updating request meets the preset data updating condition, querying whether an updating mark is setfor the to-be-updated data corresponding to the data updating request or not in a cache; and if the cache queries that the to-be-updated data corresponding to the data updating request is not provided with the updating mark or the updating mark is overtime, setting the updating mark for the to-be-updated data in the cache, applying for exclusive locking for the to-be-updated data, and performingdata updating according to a result of applying for exclusive locking. According to the data updating method and device, the updating mark is set for the updated data, exclusive locking is applied forthe data with the updating mark, data updating is conducted, and system performance reduction caused by data deadlock can be avoided.

The invention discloses a connection capturing system between the chair backrest and the base of a child safety chair. The connection capturing system comprises a front capturing mechanism, a rear capturing mechanism, a control shaft and a movable seat. The movable seat is drive by an acting force facing the rear end of the base. A limit groove is formed in the movable seat. The control shaft is located in the limit groove. The limit groove comprises a horizontal groove and an oblique groove which are integrated. The oblique grooves uses the terminal of the horizontal groove as the starting end and obliquely extends upwards. The rear capturing mechanism is connected with the movable seat through a pull rod. A linkage switch is disposed on the front capturing mechanism. The front capturing mechanism controls on and off of the linkage switch. When the linkage switch is off, the position of the control shaft is locked, and when the linkage switch is on, the control shaft can move upwards. The connection capturing system has the advantages that misoperation caused by carelessness of a user can be avoided.

The invention relates to the field of automatic lifting equipment, and particularly relates to a leveling supporting leg. A belleville spring is fixedly installed on a shell through a fixing screw, a sliding column nut slides backwards and gradually extrudes the belleville spring at the tail end of the stroke of the leveling supporting leg, the belleville spring is compressed and deformed due to the axial load, and the axial load borne by the belleville spring is larger along with the increase of the compression deformation amount. The recovery impact force of the leveling supporting leg is reduced, and the problem that the supporting leg is locked after being placed for a long time is solved.

The invention relates to the technical field of torque calibration, and discloses a calibration device and a calibration method of a torque measurement system. The calibration device of the torque measurement system comprises a main shaft mechanism and calibration assemblies symmetrically arranged on the two sides of the main shaft mechanism. The main shaft mechanism comprises a main shaft, two ends of the main shaft are provided with to-be-calibrated test pieces in the torque measurement system, and the test pieces measure torque T actual measurement at two ends of the main shaft. The calibration assembly comprises an accompanying test gear box, a torque meter and a torsion bar. The low-speed stage of the accompanying gearbox is connected with the end of the main shaft, one end of the torquemeter is connected with the high-speed stage of the accompanying gearbox, the other end of the torquemeter is connected with the torsion bar, the torsion bar located on one side of the main shaft mechanism is fixed, the torsion bar on the other side is used for applying torque, and the torquemeter measures the torque T height of the high-speed stage. The calibration device of the torque measurement system can realize accurate calibration of the torque measurement system and ensure the accuracy of a calibration result.

The invention relates to the field of embedded technology, and discloses a method for long connection communication of an embedded terminal, which is used for solving the problems of high expenditurefor establishing multiple threads and complex data synchronization. According to the method, only one independent communication thread is created; when the long connection between the embedded terminal and the server is abnormally disconnected, the communication thread calls an initialization interface of the embedded terminal to realize automatic reconnection; when the embedded terminal needs tosend a message, the communication thread calls a message sending interface of the embedded terminal to send the message; when the embedded terminal needs to receive the message, the communication thread calls a message receiving interface of the embedded terminal to receive the message; when the communication thread processes the messages, the messages needing to be processed are put into a message queue to be processed one by one; and in the one-by-one processing process, if the current message fails to be processed, caching the message, and waiting for cyclic next sending. The method is suitable for embedded terminal long connection communication.

The embodiment of the invention provides an account transfer method and device, a storage medium and equipment, and belongs to the technical field of computers. The method comprises the following steps: receiving a transfer request containing transfer parameters sent by a business party, wherein the transfer parameters comprise a deposit account, a withdrawal account, a transfer amount and an order number; judging whether the transfer parameters meet transfer requirements or not; when the account transfer parameter meets the account transfer requirement, adding the account transfer request into a money output queue to wait for executing money output operation; adding the transfer request into a deposit queue to wait for performing deposit operation after the deposit operation is performed on the deposit account corresponding to the transfer request; and returning an order number and a transaction serial number corresponding to the transfer request to the business party after the deposit operation is executed on the deposit account corresponding to the transfer request. The embodiment of the invention is suitable for a transfer processing process.

The invention discloses a method for implementing a spin lock in a database. The method for implementing the spin lock in the database is characterized by comprising the following steps of: storing two global variables, namely a spin lock variable and an ID variable in a shared memory, and initializing the two variables as 0 when a system is initialized; and memorizing a current spin lock holdingthread by using a high storage value of spin lock variables, and implementing automatic unlocking of the spin lock according to the storage value when the lock holding thread is abnormal and exits tocause deadlock. By the method, possible deadlock when multiple tasks compete with the same spin lock is avoided, and the spin lock can protect the operation on a data structure for a long time and can process the deadlock problem caused by the abnormal end of a locking thread in the period by changing a locking flow and a deadlock judgment flow.

The invention relates to a method and a device for realizing AGC (automatic gain control) gain gear control, wherein the method comprises the following steps: setting an AGC gain gear obtained from a main carrier frequency as an initial gear in a special state when an MS (mobile station) enters the special state from a free state; detecting a signal-to-noise ratio of an input signal when the MS enters the special state; and controlling the AGC gain gear control by the signal-to-noise ratio of the input signal when the signal-to-noise ratio is not less than a preset threshold value. With the adoption of the method and the device of the embodiment provided by the invention, error codes of a first business block in the special state can be effectively avoided, and the situation that a gear is locked can be effectively avoided, so that the normal operation of the business can be ensured.

An ESD detection method, device, and ESD debugging method and device. The ESD detection method includes: receiving an input file; extracting a netlist corresponding to a layout file through a technical tool file; detecting the setting of a circuit unit mounted on a power line in the netlist The type of ESD protection device; by detecting the distribution coordinates of the device in the circuit unit of the netlist, the distribution range of each circuit unit in the netlist is obtained; the ratio of the distribution range of each circuit unit to the distribution range of the top-level circuit unit in the netlist is calculated; when the ratio is greater than Or when being equal to the first preset value, determine whether the circuit unit includes a core device, and judge whether the ESD protection device type is an ESD protection device suitable for a core device; when the ESD protection device type is not suitable for an ESD protection device for a core device , to determine that the circuit violates the ESD design rule; when the ratio is smaller than the first preset value, it is detected whether the circuit unit contains a core device. The method and apparatus reduce detection time.

The invention relates to a fastening and sealing device for a high-temperature ball mill tank and an assembly and disassembly method. It has a ball mill cylinder with one end open and an end cover fixedly connected to the open end of the ball mill cylinder through bolt sealing. The end is connected with an exhaust pipe for extracting the vacuum in the ball mill cylinder, and a lock clamp mechanism is provided between the ball mill cylinder body and the end cover. The clip hasp and the lock angle seat are fixed on the end cover. One end of the lock clip hasp is connected with the lock clip closing rod, and the other end of the lock clip hasp is turned over and folded on the lock angle seat. The present invention adopts the combination of bolts and locking mechanism before ball milling, which ensures the requirements of the ball mill cylinder for vacuum degree during vacuuming, and then removes the bolts for locking, and only retains the locking mechanism for locking during high-temperature ball milling, realizing The function of quick disassembly of the end cover of the ball mill tank at high temperature after operation is realized, which further meets the operation requirements of special materials.

The invention relates to the field of embedded technology, and discloses a method for long-connection communication of an embedded terminal, which is used to solve the problems of high cost of establishing multithreading and complicated data synchronization. The present invention only creates a separate communication thread; when the long connection between the embedded terminal and the server is disconnected abnormally, the communication thread invokes the initialization interface of the embedded terminal to realize automatic reconnection; when the embedded terminal needs to send a message, The communication thread calls the message sending interface of the embedded terminal to send the message; when the embedded terminal needs to receive the message, the communication thread calls the message receiving interface of the embedded terminal to receive the message; The incoming message queue is processed one by one; in the process of processing one by one, if the current message processing fails, the message will be cached and wait for the next sending cycle. The present invention is suitable for embedded terminal long connection communication.