42results about How to "Easy to deploy at scale" patented technology

The invention discloses a software package-based online automatic updating method for an open source operating system of a mobile terminal, which relates to the field of mobile terminal software and is applied to the open source operating system of the mobile terminal. By the method, the remote automatic updating of system software can be realized by taking a package as a unit, and convenience isbrought to the rehabilitation of security holes and the installation of the operating system. The method comprises the two aspects that: a server automatically finishes structuring and publishing thesoftware package, acquires all source codes of the operating system from an open source site, automatically divides and structures a proper software package, determines the updating information of the software package according to the version information and dependency of the source codes, and publishes the software package by utilizing a network; and the mobile terminal serving as a software package acquirer and user automatically checks the updating information by client software, and downloads and updates the system by taking the software package as the unit to fulfill the aim of automaticonline updating. The method has the characteristics of high degree of automation and the like, and is easy to deploy in large scale and use.

The invention relates to an indoor positioning system based on multiple existing communication networks. The indoor positioning system comprises a plurality of APs and an intelligent device to be positioned. The indoor positioning system further comprises a control chip and a central processor; the plurality of APs are wirelessly connected with the intelligent device through respective communication networks; the central processor is connected with the APs; the control chip is connected with the central processor; the plurality of APs communicate with the intelligent device through respective communication networks and receive signals; the central processor acquires the position information of the intelligent device according to the signals received by the plurality of APs; and the control chip selects communication networks of the APs and the intelligent device and APs which communicate with the central processor. Compared with the prior art, and according to the indoor positioning system of the invention, based on the difference of diffraction abilities and the difference of positioning precisions of signals of different frequencies, indoor combined positioning is performed. The indoor positioning system has the advantages of high measurement precision, simple structure, low cost and the like.

The invention discloses a multi-geomagnetic sensor speed measurement system and a speed measurement method, which mainly solve the problem of low measurement accuracy in the prior art. It includes a geomagnetic vehicle detection module, a data sending module, a data receiving module and a background data processing module. During the measurement, the geomagnetic vehicle detection module collects the geomagnetic data when the vehicle passes by and processes it to obtain time data; the background processing module receives the data for data cleaning; the background processing module selects the reference sensor and opens up each time window; The number of data is processed accordingly; when multiple inspections are performed, the measurement threshold δ is set and the time data is merged according to the threshold δ; when the missing inspection is missed, the interpolation method is used to complement the missing inspection data; the minimum variance method is used to estimate the speed of the vehicle according to the alignment result . The invention solves the problems of low accuracy and difficult implementation of a single geomagnetic sensor, realizes high-precision and low-cost vehicle speed measurement, and can be used for intelligent traffic management.

The invention discloses a vehicle positional information compressing and acquiring method, terminal, and system and relates to the technical field of location-based service. The method comprises steps that a terminal acquires the position and the speed data sequence of a vehicle where the terminal is located in order to perform curve fitting on the data sequence, just sends a curve characterization parameter and auxiliary data to a central end so as to achieve compression and acquisition; the terminal resolves position coordinates by using an acceleration module when a navigation satellite signal is lost; the terminal temporarily stores data when a mobile network signal is lost and sends the data when the mobile network signal is restored; the central end operates a decompression algorithm to resolve the locus of the vehicle according to the vehicle data curve characterization parameter. The method is used for monitoring vehicle positions and dispatching vehicles, achieves data compression at the acquisition terminal so as to relieve system load, and solves a data compressing and acquiring problem in a simple way when the navigation satellite signal is lost temporarily or lost.

The invention discloses an electronic monitor for monitoring the state of a fire hydrant, including its hardware structure and corresponding operating modules. The electronic monitor is installed together with the fire hydrant, and monitors the water pressure and water consumption of the fire hydrant through sensors. The communication module reports this situation to the remote control terminal in real time; it also provides auxiliary functions such as communication test to help users realize data calibration and wireless communication blind zone avoidance; in addition, it does not require time synchronization of each monitor, and can also help realize time unification. The sensor of the present invention is simple, has low calculation requirements, low configuration requirements, and is cheap and competitive in price; simple to install, and convenient to be jointly produced with fire hydrants. The operation module can be implemented in the form of event-driven, which has a good power saving effect; the communication adopts the mode of event triggering and monitor initiation, so that problems can be found in time, saving power and communication traffic.