93results about How to "Improve verification effect" patented technology

The invention discloses a data integrity verification method suitable for an embedded processor. The method comprises a multi-granularity hash computation method, an address conversion method and a hash node access control method, wherein the multi-granularity hash computation method is used for generating a multi-granularity Merkle tree which is cached in a hash cache and is in charge of computing a hash value of a data block in a memory when nodes of the tree are absent; the address conversion method is used for providing a unique corresponding address for each node; and the hash node access control method is mainly in charge of accessing the nodes of each hash tree and adopting different strategies particularly during reading absence and writing operation. Due to the multi-granularity hash computation method, the hash tree generated by the data integrity verification method has less nodes and layers so as to reduce a memory space and hardware area overhead, shorten initialization time and improve the performance.

A method and apparatus for rendering a scene in an autopilot simulator of a vehicle is disclosed. That method may include extracting at least one map element from a high precision map; determining a current state of the virtual target vehicle according to an autopilot scheme for controlling the virtual target vehicle to travel in the scene; generating a current frame of the scene according to at least one map element and vehicle rendering parameters corresponding to the current state; determining a predicted state of the virtual target vehicle at a point in time corresponding to a next frame of the scene according to the autopilot scheme; and generating a next frame based on the current frame, the prediction state and at least one map element. Through the method and the device, the scene in the vehicle autopilot simulator can be rendered well and good debugging and verification effects can be obtained.

The invention discloses a method and a device for retrieving objects and a method and a device for verifying retrieval, and belongs to the field of video monitoring technologies. The method for retrieving the objects includes acquiring to-be-retrieved object images and specified regions of the to-be-retrieved object images, and computing local feature points of the specified regions in the to-be-retrieved object images; searching indexes in preliminarily created index sets; acquiring object images corresponding to the found indexes and using the acquired object images as object images retrieved in video. The indexes are matched with the local feature points of the specified regions. The methods and the devices have the advantages that the object images are retrieved in the video by the aid of the local feature points of the specified regions in the to-be-retrieved object images, so that the objects can be retrieved in the local regions of the images, the object retrieval application range can be expanded, and the accuracy of retrieval results can be improved; the retrieved object images are verified after the object images are retrieved, so that unmatched object images can be removed, and the accuracy of the retrieval results can be further improved.

The invention discloses an information encoding method and an information encoding device for an electronic tag, which solve the technical problem to improve effective information transmission rate of data. The method comprises the following steps that: 1, an electronic tag programmer receives the data, an encoding unit performs FM0 encoding and stores the data in a data area, and a read / write control unit transmits the electronic tag data into the electronic tag. The device consists of a data transceiver unit, an encoding unit and a read / write control unit which are connected sequentially. Compared with the prior art, on the premise of not changing the physical channel bandwidth, the transmission rate and an electronic tag hardware circuit of the conventional vehicle number recognition system, the invention has the advantages that: vehicle number data contents stored in the electronic tag are subjected to the FM0 encoding, the data verification capacity is improved, and the effectiveinformation transmission rate of the data is greatly improved; therefore, the electronic tag recognition rate of the vehicle number recognition system is improved.

The invention relates to the technical field of electronics, in particular to a data migration verification method and apparatus. The method comprises the steps of calculating each row of migrated data in a process of migrating the data from an A end to a B end to obtain an identifier corresponding to each row of data; migrating the identifier and the row of data corresponding to the identifier to the B end; calculating a sum of identifiers corresponding to all rows of data in the migration process to obtain a first value, and calculating a sum of identifiers corresponding to all rows of data at the B end to obtain a second value; and when the first value is equal to the second value, indicating that data migration verification is passed. An embodiment of the invention furthermore provides the apparatus which executes the method. The method and the apparatus have extremely high working efficiency for data verification of the problems of row loss, row data repetition and the like in the data migration process.

The invention discloses a water pressure test sealing device of an anti-explosion motor base. The water pressure test sealing device comprises a pressing screw rod vertically aligning to the center of a pressing board of a wiring box; a beam or a disk and a J-shaped hook are in threaded connection with the pressing screw rod; and a spiral handle is transversely mounted at the exposed end of the pressing screw rod. With the adoption of the water pressure test sealing device provided by the invention, the sealing purpose can be realized by pressing a pressing board through the pressing screw rod. The water pressure test sealing device has the advantages of simple structure and convenience in installation. With the adoption of the water pressure test sealing device, the anti-explosion property of the base can be rapidly inspected, namely the sealing device can be rapidly assembled in a water pressure test, so that a large amount of process bolts can be saved; the bolt breakage phenomenon in production can be avoided; the production and manufacturing cost can be reduced; the quality is good; and the water pressure test sealing device is very beneficial to popularization and implementation.

The invention belongs to the technical field of aquatic feed additives, and particularly discloses a special anti-fatty liver additive for a hybrid snakehead and a preparation method thereof. In the term of weight percentage of a dry material, the special anti-fatty liver additive comprises the following components: 20-40 percent of carbohydrate source substance, 10-30 percent of crude fat, 10-30 percent of amino acid mixture, 15-30 percent of compound Chinese herb extract and 10-30 percent of premix additive; the compound Chinese herb extract is prepared from the following raw materials: oriental wormwood, rhizoma alismatis, the root of red-rooted salvia, bighead atractylodes rhizome, Chinese yam, semen coicis and hawthorn. Discovered by a large quantity of creative tests, the Chinese herb extract with a special formula of the special anti-fatty liver additive and the carbohydrate source substance, the crude fat and the amino acid mixture which are used conventionally are used together to play a role in remarkably resisting the fatty liver.

The invention discloses a method for verifying the complexity of router passwords. A weighted verification method is adopted for the router passwords, and different types of characters Si (i=1, 2, 3...n) in the router passwords are assigned different characters. The weight wi (i=1, 2, 3...n), when the quantity of a certain character Si is not 0, then the total weight of this character Si is wi, then the total weight of the router password is Σwi (i=1, 2, 3...n), and the complexity of the router password is judged by the total weight Σwi. The present invention first adopts the weighted verification method, which assigns different weights to different types of characters such as numbers, letters and special characters, and checks the complexity of the password by calculating the total weight of the password. The algorithm is relatively simple and fast, and can also It is a relatively simple and effective method to prompt the complexity of the user's password in real time according to the verification result, and is suitable for use on various embedded devices such as routers.

The invention discloses a simple and efficient tank parallel balance emission test system and a simple and efficient tank parallel balance emission test method. The test system is composed of a differential pressure measurement component, a pressure measurement component, a flow measurement component, a surplus measurement component, a data acquisition system, a pipeline component and the like. The test system is simple in structure, free of special requirements to the components, and easy to implement. According to the test method, specific test steps are defined and comprise a pipeline flow resistance consistency testing and adjusting test, a parallel balance emission test of a tank without a PMD (Propellant Management Device), a parallel balance emission test of the tank with the PMD and the like. The method is simple and effective, can eliminate the system error and the measurement error, and has higher measurement accuracy. According to the invention, the test system and the test method are combined, so that the verification of the parallel tank balance emission test can be completed effectively, the parallel tank balance emission performance can be examined and verified well, and test results are excellent.

The invention discloses a data integrity verification method suitable for an embedded processor. The method comprises a multi-granularity hash computation method, an address conversion method and a hash node access control method, wherein the multi-granularity hash computation method is used for generating a multi-granularity Merkle tree which is cached in a hash cache and is in charge of computing a hash value of a data block in a memory when nodes of the tree are absent; the address conversion method is used for providing a unique corresponding address for each node; and the hash node access control method is mainly in charge of accessing the nodes of each hash tree and adopting different strategies particularly during reading absence and writing operation. Due to the multi-granularity hash computation method, the hash tree generated by the data integrity verification method has less nodes and layers so as to reduce a memory space and hardware area overhead, shorten initialization time and improve the performance.

The invention provides a mold for detecting mold flow marks of epoxy molding plastic, relates to the field of detecting the mold flow marks and solves the problems that the detection of the existing mold flow marks needs to be matched with a frame, different sealing manners need different molds to perform a simulation test, the number of mold operating times is large, and the verifying effect is not obvious. The mold for detecting the mold flow marks of the epoxy molding plastic comprises a mold main body, wherein the mold main body comprises an upper module and a lower module, wherein the upper module is provided with an upper module panel; the lower module is provided with a lower module panel which is matched with the upper module panel for application; the lower module panel consists of a glue inlet passage and a traveling cavity part; the traveling cavity part is divided into a plurality of traveling cavity part function areas; the lower module panel adopts any traveling cavity part function area or a plurality of traveling cavity part function areas. The mold disclosed by the invention can be used for verifying the conditions of the mold flow marks of the epoxy molding plastic in different sealing modes in a disposable manner, the material consumption cost is reduced, the number of the mold operating times is reduced, the labor intensity is reduced, the verifying efficiency is improved, the verifying period is greatly shortened, and the verifying effect is very obvious.

The invention relates to the technical field of automobiles, in particular to a whole vehicle short-mileage NVH verification method. The method comprises the following steps: 1, carrying out initial measurement on dragging torque and thickness change of a brake disc; 2, carrying out running-in on the vehicle; 3, performing a road test on an open road surface; 4, evaluating the performance of the vehicle; and 5, if the review passes, outputting a result, and if the review does not pass, re-executing the steps until the review passes. The method is used for rapidly evaluating the low-temperature noise of the friction material in the early stage, the influence of a window period on project development is avoided to the maximum extent, and the follow-up possible scheme change risk can be reduced.

The invention discloses a method for verifying guide plate performance microgravity tests in a plate type propellant management device. Guide plate scaling model components different in section shape are test objects. According to the testing method, a method for realizing microgravity tests of the guide plate scaling model components different in section shape and different testing condition replacing strategies are mainly designed, and test preparation, test procedures, camera shooting observing methods, test anti-interference strategies and the like are stipulated. The testing method is reasonable in design, strong in operability, and capable of realizing all tests of microgravity of the guide plate scaling model components and recording the whole fluid conveying process in a shooting mode, and brings convenience to analysis of subsequent test results and guide plate optimized designs. According to the testing method, fluid management and conveying characteristics of guide plate models can be acquired, and performance of the guide plates can be verified.