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48 results about "Mobile database" patented technology

Mobile computing devices (e.g., smartphones and PDAs) store and share data over a mobile network, or a database which is actually stored by the mobile device. This could be a list of contacts, price information, distance travelled, or any other information.

Mobile auxiliary indoor positioning method and system based on smart phone platform

The invention discloses a mobile auxiliary indoor positioning method and a mobile auxiliary indoor positioning system based on a smart phone platform. For the mobile auxiliary indoor positioning method and the mobile auxiliary indoor positioning system, the position of a user in a room is located by establishing a fingerprint database and a mobile database. The positioning method comprises the following steps of: after receiving a positioning request sent by a user, collecting RSSI (received signal strength indicator) fingerprints of the position of the user according to the positioning request, matching the RSSI fingerprints with RSSI fingerprints in the fingerprint database, and returning a set containing candidate positions with fixed quantity according to the matching result; according to data in the mobile data, the information of moving information and moving distance of the user, calculating the candidate positions in the set containing the candidate positions with the fixed quantity as the probability of the position of the user, so as to obtain the position of the user. Compared with the traditional indoor positioning method, the mobile auxiliary indoor positioning and the mobile auxiliary indoor positioning system have the advantages of high positioning precision and small maximum error, and can continuously and accurately positioning in a positioning process in real time.
Owner:北京泰豪信息科技有限公司

Method for capturing movement data increment based on track change

InactiveCN104834700AImprove the efficiency of incremental captureLow costDatabase distribution/replicationRelational databasesRollback OperationComputer science
The invention discloses a method for capturing movement data increment based on track change. The method comprises the following steps of enabling a trigger to capture operation logs; recording the operation change process of an operation data sheet; combining the operation logs by a purifying method, so as to capture the net increment and record the whole operation change process. The method has the advantages that the existing trigger mechanism of a movable database and the characteristic of lower writing frequency of movable nodes in the movable computing environment are sufficiently utilized, the increment capturing efficiency is obviously improved, the purifying operation is further adopted when the increment is extracted, the minimum increment data is ensured, the synchronous data communication amount is greatly reduced, the requirement of the synchronous system on the network bandwidth is lowered, and the communication cost is reduced; when the final consistency of the data is influenced because of the accidental interruption or severe timeout of the synchronous system, the operation change process can be used as the effective evidence for the rollback operation of the synchronous system, and the robustness of the synchronous system is improved.
Owner:NANJING UNIV OF POSTS & TELECOMM

Comprehensive supervision information system for safety production

The invention provides a comprehensive supervision information system for safety production, which comprises a monitoring module, a data analysis module, a control unit, a power supply, a data storagemodule and an instruction module, wherein the power supply is electrically connected with the monitoring module, the data analysis module, the control unit, the data storage module and the instruction module, the monitoring module comprises a fire-fighting smoke detector, a temperature sensor and a humidity sensor, the control unit comprises an intelligent processor and a control switch, the control unit is electrically connected with sub-controllers through a sub-control circuit, the control unit is connected with a remote controller through a signal transmission device, the data storage module comprises a data repository and a data arrangement module, the data repository comprises a fixed database and a mobile database, the instruction module comprises a warning lamp, a loudspeaker anda fire extinguishing system, and the fire extinguishing system comprises a water supply device. The comprehensive supervision information system for safety production is reasonable in design, convenient for supervision control and more rapid in response to danger.
Owner:广州普贤电子科技有限公司

Automobile navigation system height information identification detection method

The invention discloses an automobile navigation system height information identification detection method which includes the steps: firstly, acquiring contour map data, viaduct position and height information data and mobile communication base station position and height information data, and storing the acquired data into a mobile phone database; secondly, transmitting current position coordinates and transmitting moment data to a mobile communication base station after the current position coordinates of an automobile are acquired by a mobile phone satellite navigation system through a GPS(global position system); thirdly, returning horizontal position coordinates and height coordinates of the mobile communication base station and returning moment to a mobile phone when the position coordinates and the transmitting moment data are received by the mobile communication base station; fourthly, calculating height of a mobile communication base station signal receiving point and horizontal distance between the automobile and the mobile communication base station signal receiving point by a mobile phone data processing unit; fifthly, comparing mobile phone processor time data and a preset threshold value, judging whether the mobile phone processor time data are right or not, repeating the second step to the fourth step if not, and rightly planning route navigation. The method hasthe advantages of rapidness and accuracy in navigation.
Owner:张天骏
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