86results about How to "Prevent rollback" patented technology

In a vehicle powertrain that includes an engine and an electric machine, a method for preventing rollback of a wheeled vehicle located on an incline includes determining a magnitude of wheel torque required to prevent the vehicle from rolling back, using the electric machine to produce the required magnitude of wheel torque at the wheels, transmitting engine torque to the wheels, and reducing torque produced by the electric machine while increasing engine torque such that the sum of wheel torque produced by the engine and electric machine is substantially equal to said required magnitude of wheel torque.

A vehicle control system determines an upper non-zero limit on deceleration of a vehicle to prevent rollback of the vehicle down a grade being traveled up on by the vehicle. The upper non-zero limit on deceleration is determined by the controller based on a payload carried by the vehicle, a speed of the vehicle, and a grade of a route being traveled upon by the vehicle. The controller is configured to monitor the deceleration of the vehicle, and to automatically prevent the deceleration of the vehicle from exceeding the upper non-zero limit by controlling one or more of a brake or a motor of the vehicle. The controller also is configured to one or more of actuate the brake or supply current to the motor of the vehicle to prevent rollback of the vehicle while the vehicle is moving up the grade at a non-zero speed.

The invention discloses certificate repairing equipment for a real estate certificate. The certificate repairing equipment comprises a rack. The rack is provided with a first page overturning and printing mechanism for page overturning and printing of the blank certificate, a first stamp, a movable clamp, a first mechanical arm, a second page overturning and printing mechanism, a certificate limiting groove, a paper pasting mechanism, a second stamp, a page combining assembly and a certificate discharging distributing mechanism receiving the certificate obtained after page combining. The firstmechanical arm clamps the first stamp to stamp the certificate and clamps the movable clamp to move the certificate. The second page overturning and printing mechanism conducts page overturning and printing on the certificate from the first page overturning and printing mechanism. The certificate limiting groove is used for receiving the certificate from the second page overturning and printing mechanism. The paper pasting mechanism is used for pasting paper to the certificate pages in the certificate limiting groove and comprises a second mechanical arm. The second stamp is clamped by the second mechanical arm, and stamps the certificate pages in the certificate limiting groove. The page combining assembly is used for combining the certificate. The certificate repairing equipment can prepare the real estate certificate through the machine, and compared with manual preparing, the labor intensity is lowered, and efficiency is improved.

The invention discloses an EMMC chip-based mobile terminal rollback prevention method and system. The method comprises the steps of obtaining first version information stored in an RPMB physical partition of an EMMC chip when a mobile terminal is started, wherein the first version information includes version information of partitions; comparing the first version information with second version information run by the mobile terminal, wherein the second version information includes current version information of the partitions; and when the first version information is higher than the second version information, controlling the mobile terminal to stop starting. According to the method and the system, the version information of the partitions are stored in the RPMB physical partition of the EMMC chip, and the version information in the RPMB physical partitions serves as a basis for judging whether the version rolls back or not. On one hand, the rollback of the version is prevented; and on the other hand, the EMMC chip is necessary hardware of the mobile terminal, so that the application range of the rollback prevention method is expanded.

The invention discloses message sending and receiving methods and message sending and receiving devices. The message sending method comprises that a first message is sent to a target receiver, and other local services are processed asynchronously; whether the first message is sent successfully is detected; and when sending of the first message fails, the first message is recorded in a message queue. Concrete businesses of message sending and receiving are separated and processed asynchronously, the failure message is stored and recorded, and data rollback caused by message loss or business data interruption is avoided.

The invention discloses a clamp for processing a double-head piston ball pit, which mainly comprises a bottom plate. The bottom plate is provided with a positioning block and a puller rod seat, and the inside of the puller rod seat is provided with a puller rod which is positioned with the positioning block in a matching mode; the side of the puller rod is provided with a telescopic locking rod, and the locking rod is in transmission connection with a first hydraulic cylinder; the bottom plate is provided with a pressing arm seat, and the pressing arm seat is provided with a pressing arm; and the pressing arm is arranged on the pressing arm seat through a hinge structure, and one end of the pressing arm is positioned above the positioning block and clamped with the positioning block in the matching mode. The clamp can fix the puller rod through the locking rod and avoid the rollback phenomenon of the puller rod, so that work pieces are positioned more firmly in an axial direction; the pressing arm and the positioning block are matched, so the work pieces can be well pressed and fixed in a radial direction to prevent loosening, and the work pieces are positioned more firmly in the axial direction; the damage ratio of the work pieces is greatly reduced during the processing, and processing quality is also better.

The embodiment of the present invention discloses a parameter updating method and device, which relate to the technical field of wireless communication and are used for reducing the processing complexity of a network element management device and reducing the signaling interaction between the management device and the network element. In the present invention, the network element device verifies the configuration parameters carried in the parameter configuration commands issued by the management device in batches, and the verification of the configuration parameters carried in each parameter configuration command issued by the management device in batches is successful. , use the received configuration parameters to update the locally saved parameters. By adopting the present invention, the processing complexity of the management equipment can be reduced, and the signaling interaction between the management equipment and network elements can be reduced.

The invention provides a system (10) for a motor vehicle (100) that receives drive demand information (161S) indicative of an amount of drive demanded of a powertrain (129) of the vehicle (100), and controls an amount of drive torque applied by the powertrain (129) to one or more road wheels (111,112, 114, 115) in dependence on the drive demand information (116S). The system also receives gradient information (11GS) relating to the driving surface and vehicle speed information (Sv). The control system, in dependence on the gradient and speed information, automatically causes a braking system (12d) to apply brake force to one or more of the wheels (111, 112, 114, 115) to prevent vehicle rollback, and adjusts the amount of brake force applied in dependence on the drive demand information (161S) to cause the amount of brake force applied to increase progressively as the amount of drive demand decreases.

The invention discloses a microphone stand capable of music score page turning for college music teaching. The microphone stand comprises a pedestal, wherein a lower part of the pedestal is provided with a group of universal wheels, the pedestal is connected with a main rod, the main rod is connected with a telescoping rod, the telescoping rod is fixed on the main rod via a butterfly screw nut, a top end of the telescoping rod is connected with the microphone stand via a tightening screw nut, one end of the microphone stand is provided with a group of counterweight blocks while the other end of the microphone stand is connected with a microphone clamp, the telescoping rod is provided with a cup holder and a control rack, and a lower part of the control rack is provided with a spacing air cylinder; an upper part of the control rack is provided with a control chip, an induced draught fan and a telescoping air cylinder; the telescoping air cylinder cooperates with an electric motor; the electric motor cooperates with a page turning device; the microphone stand capable of music score page turning for college music teaching can be used flexibly, pushed freely and fixed; the microphone stand is provided with the cup hold for placement of a cup, human-friendly design is realized, music score pages can be conveniently turned, and the microphone stand is very convenient to use.

The invention relates to the field of artificial intelligence, and discloses a database-based batch importing method, a device, equipment and a storage medium, which are used for avoiding complete rollback of the same batch of data and improving the data importing efficiency. The method comprises the steps of acquiring a target data set, wherein the target data set comprises multiple parts of to-be-imported data, and the to-be-imported data is service data needing to be imported into a database; determining a data format of the target data set; mapping each part of to-be-imported data into a plurality of attributes of a preset class through the preset class to generate a plurality of instances, each instance comprising one part of to-be-imported data; importing the plurality of instances into a database according to the data format; monitoring an import process of the plurality of instances through a preset function, and storing an import result into the corresponding instance; and when at least one instance is abnormal in the importing process, importing normal data in other instances in the target data set into a database through a preset binary classification algorithm.

An apparatus and system for facilitating the controlled ascent and descent of stepped or irregular inclines, such as a set or flight of stairs. In an embodiment, the invention comprises an apparatus and system that allows an operator to safely transport a heavy load up or down a flight of stairs. The invention may be utilized with, attached to or incorporated within a transporting carrier, such as a hand truck or hand cart, for transporting heavy cargo up or down stepped or irregular inclines. In an embodiment, the invention allows a wheel to rotate freely in one direction while regulating the rotation of said wheel in the opposite direction such that a braking force in said opposite direction is proportional to the apparent weight and angle of inclination of said carrier. In operation, a gravitationally induced increase in an apparent weight activates the invention's braking system, thereby providing a braking force to the carrier wheel.

The invention provides a block chain data rollback processing method and system, and the method comprises the steps: firstly detecting and verifying the newly-added business data of a user, writing the newly-added business data into a preset database, verifying whether the business data is abnormal or not in the writing process, transmitting the business data to a verification node for confirmation, and writing a block confirmed by the verification node into a block chain; if the block chain is abnormal, the consensus node generating and sending a data rollback request to the consensus leader node for verification, and the consensus leader node generating a data rollback structural body, signing the data rollback structural body and sending the signed data rollback structural body to the block chain network; the consensus node receiving and verifying the data rollback structural body, and if the verification is passed, generating a sponsored ticket; and the consensus leader node counting the number of sponsored tickets and judging whether rollback operation can be carried out or not. According to the block chain data rollback processing method and the processing system thereof provided by the invention, the risk of dirty data problem is reduced, the data rollback of the block chain is conveniently realized, and the user loss caused by rollback can be subjected to insurance compensation.

The invention discloses a TEE-based Internet of Things secure startup implementation method. The method comprises the following steps of finding out a trusted application mirror image as a signature mirror image; finding out a certificate, calculating hash abstracts of four groups of key hash fields in the mirror image, and comparing the consistency of the two hash abstracts; calculating a hash abstract of the trusted application signature mirror image; verifying the legality of the signature by using asymmetric encryption; checking the legality of the header of the client application mirror image, and finding out the client application mirror image marked as the signature mirror image; finding out a certificate, calculating hash abstracts of four groups of secret key hash fields in the mirror image, extracting a trusted application security starting secret key hash abstract in a secret key database, and comparing the consistency of the two hash abstracts; calculating a hash abstract of the client application signature mirror image; and verifying the legality of the signature by using asymmetric encryption, and entering a trusted application for execution. By means of the method, safety and flexibility are guaranteed, the published signature mirror image is revoked, and rollback is prevented.

The invention relates to a continuous annealing furnace. An in-furnace conveying chain is arranged in a furnace body; an input end of the in-furnace conveying chain extends out from an inlet of the furnace body to be connected with pre-furnace equipment; an output end of the in-furnace conveying chain extends out from an outlet of the furnace body to be connected with a post-furnace conveying chain; a combustion system, a quick cooling section air cooling and smoke discharging system, a front slow cooling section air cooling system and a rear slow cooling section air cooling system are sequentially arranged on the furnace body from the inlet to the outlet; the pre-furnace equipment comprises a non-return device, a platform pipe presence detecting device, a pipe diameter measuring device and a sand blasting device, a pipe dividing mechanism, a centering mechanism, a supporting rotating mechanism and a pipe blocking and discharging mechanism; the pipe dividing mechanism, the centering mechanism, the supporting rotating mechanism and the pipe blocking and discharging mechanism are sequentially arranged in the pipe conveying direction; the quick cooling section air cooling and smoke discharging system is used for supplying cold air into the furnace body from the top and discharging smoke from the bottom of the furnace body; and the in-furnace conveying chain and the post-furnace conveying chain are driven by one driving mechanism. The continuous annealing furnace is reasonable in overall structural design and complete in system; and the pre-furnace equipment is high in automation degree and stable in pipe transportation, and special personnel do not need to watch pipes in real time.