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51results about How to "Avoid refresh" patented technology

Method for updating embedded mobile electronic map data base in real time

The invention relates to a method for updating an embedded mobile electronic map data base in real time, wherein map elements in the electronic map data base is firstly coded, and the IDs of the map elements are determined; the data of the relationship among the map elements is stored into the corresponding memory area of a map information storing device according to the IDs of the map elements; one item or a plurality of items of data of the relationship among the map elements can be extracted from the memory area of the map data, and the IDs of the map elements and the update state thereof are be obtained; data is acquired from a GPS/GPRS module and then is converted into geographic data compatible with the map data base, and whether the current travelling route belongs to certain map element is judged according to the coordinate figures of longitude and latitude; whether the map elements requires addition or modification is hinted according to the judged result; or by setting the travelling time threshold value, the map elements are automatically added when being more than the threshold value; finally, the updated data and the update state are stored into the map information memory area, thus electronic map data of a mobile navigation device can be stored and updated.
Owner:NOAH SOLUTION SUZHOU

Construction method of distributed tide computing system graphics platform based on WEB-SVG

InactiveCN103530736ARealize flicker-free refresh displayGuaranteed independenceResourcesDecompositionElectric power system
The invention discloses a construction method of a distributed tide computing system graphics platform based on WEB-SVG (Scalable Vector Graphics), and belongs to the technical field of electric system energy management. The method comprises the steps that a distributed computing model is established; a power grid model is led into a local hierarchic database; an original SVG data file in an EMS (Engine Management System) is led out; an SVG file with interactivity is generated; a local real-time database model is updated in real time; graphics and model integration is realized; an Apache server is deployed as a control center of a whole WEB release system; communication is realized between subsystems and a coordination layer by a common object request broker architecture (CORBA) port by adopting a decomposition coordination mode; a distributed tide computing main program is developed; and a system management part and a computing part are mutually independent. The method achieves display of complex graphics and refreshing of real-time data, and is applied to distributed tide computing first; a practical graphics platform construction method is provided for a distributed computing system; and a foundation is laid for popularization and application of the distributed computing system.
Owner:NORTH CHINA ELECTRIC POWER UNIV (BAODING)

Cache asynchronous refreshing method and system and computer readable storage medium

ActiveCN111414392AImprove the performance of asynchronous refreshSolve the problem of not being able to access in the cacheDigital data information retrievalSpecial data processing applicationsTable (database)High availability
A cache asynchronous refreshing method comprises the following steps: detecting a refreshing log table of a database cache; when the database data is changed, according to the table name and the indexinformation, matching a record to be processed with an SQL feature table of the database cache, wherein the SQL feature table at least comprises SQL feature information used for maintaining a serviceapplication; when the record is matched with the SQL feature, setting the SQL feature state corresponding to the record to be in refresh; obtaining corresponding data from a database according to thetable name and primary key information in the refreshing log table, and brushing the data into the database cache; after data refreshing is finished, setting the SQL feature state corresponding to the record to be valid, and then deleting the corresponding record in the refreshing log table; and when the record is not matched with the SQL feature, deleting the corresponding record in the refreshing log table. The method has the high availability and high performance, and avoids a large amount of redundant data which is not accessed by the application in the cache.
Owner:WHALE CLOUD TECH CO LTD

Safety protection method of controller, main chip of controller and controller

PendingCN112711761ASolve the problem of high cost of secure boot functionSolve problems with high performance requirementsDigital data protectionPlatform integrity maintainanceDigital signatureEmbedded system
The invention provides a safety protection method of a controller, a main chip of the controller and the controller, the controller comprises the main chip and a safety chip arranged outside the main chip, the main chip comprises a starting bootstrap program area and an application program area; and in the power-on process of the controller, the main chip starts and enters the starting bootstrap program area, a corresponding secret key and a digital signature can be obtained from the security chip, a corresponding verification digital signature is calculated according to the secret key; and when the verification digital signature is matched with the corresponding digital signature, the main chip completely runs a starting bootstrap program, the main chip skips to the application program area after running of the starting bootstrap program is completed, then safe starting of the controller is completed, and the problems that in an existing safe starting scheme of the controller, the cost of the safe starting function is high, and the safe starting function of the controller is difficult to achieve when the performance of a main chip is reduced can be effectively solved.
Owner:UNITED AUTOMOTIVE ELECTRONICS SYST

Method, system for communication among webpage, and application in music searching

The invention discloses a method and a system for communication between web pages and application of the method and the system in music search. The invention is to solve the problems of interruption of play of the current page, bandwidth waste and untimely response of the prior means adopted of refreshing the pages or polling a server. The method comprises the following steps that: a web page A of a client sends out an operation request and then waits for reply of the server; when the server receives a trigger request sent out by another web page B of the client, the reply of the operation request of the corresponding web page A is returned to the client; and the client performs corresponding operation on the web page A according to the reply. As for the client, the method does not need polling the server and only needs connection for once, thereby the bandwidth and server resources are greatly saved. Simultaneously, when the server obtains another trigger request, the server can reply to the client, thereby the real-time communication ability is guaranteed to the maximum degree and simultaneously refreshing of the pages is avoided. Moreover, the method and the system are also suitable for communication between two unrelated web pages.
Owner:网易有道信息技术(北京)有限公司

Estimating temperature of memory elements

The invention relates to a method for determining a temperature (T) of a plurality of memory elements (10) having a temperature-dependent probability (P) of assuming a particular bit value, the method comprising: triggering (110) the plurality of memory elements (10) to assume the particular bit value; reading out (120) the contents of the plurality of memory elements (10) to obtain read data (D), and processing (130) the read data (D) for determining a value (Vact) indicative of the temperature (T). The invention also relates to a program product comprising instructions for causing a processor to perform the method. Such computer program is advantageously used in a smartcard, which then does not need any structural modification at all. The invention further relates to a system for determining a temperature (T) of a plurality of memory elements (10). Such system is advantageously implemented in an integrated circuit, wherein the plurality of memory elements (10) forms part of an integrated memory. The invention provides that temperature (T) can be determined without the need for a separate temperature sensor. The only real requirement is the presence of a plurality of memory elements (10) having a temperature-dependent probability (P) of assuming particular bit value.
Owner:NXP BV

Method and system for preventing address table from being refreshed repeatedly in protection of Ethernet ring

ActiveCN102035711BAvoid refreshDuplicate Refresh PreventionData switching networksRing protectionEthernet
The present disclosure discloses a method for preventing repeated updating of an address table in Ethernet ring network protection, including: an Ethernet ring network node sends an Ethernet ring network protection protocol frame and encapsulates its own node information into the Ethernet ring network protection protocol frame; an Ethernet ring network node receives the Ethernet ring network protection protocol frame and matches the node information encapsulated in the received Ethernet ring network protection protocol frame with its own node information; and when the matching is successful, the Ethernet ring network node does not update the address table. The present disclosure further discloses a system for preventing repeated updating of an address table in Ethernet ring network protection. In the system, a matching unit is used for matching the node information encapsulated in the received Ethernet ring network protection protocol frame with the node information of an Ethernet ring network node itself; and when the matching is successful, the Ethernet ring network node does not update the address table. Through the method and system of the disclosure, the problem of repeated updating of an address table in Ethernet ring network protection in the scenario of requesting local protection switching can be solved.
Owner:ZTE CORP
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