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246 results about "Out of memory" patented technology

Out of memory (OOM) is an often undesired state of computer operation where no additional memory can be allocated for use by programs or the operating system. Such a system will be unable to load any additional programs, and since many programs may load additional data into memory during execution, these will cease to function correctly. This usually occurs because all available memory, including disk swap space, has been allocated.

Abnormality diagnosis method and device therefor

In industrial machine abnormality diagnosis, if the machine is diagnosed to have abnormality, then sensor data from the machine needs to be sent to a management center for causal analysis. However, since machines operated at a remote site cannot always communicate with a management center, it has been found that, in some cases, sensor data that has failed to be sent from a machine remains in the memory of the machine, resulting in lack of available memory capacity. In view of this, the present invention determines beforehand whether the diagnosed machine will run out of available memory capacity before the completion of sending the amount of sensor data required for causal analysis for the machine, and instructs a maintenance person to recover memory. This determination as to whether the machine will run out of available memory capacity before the completion of sending the amount of sensor data required for the causal analysis for the machine, is made as follows: (1) first, the machine predicts the run-out date on which the machine will run out of memory capacity for storing sensor data generated in the machine, and sends a notification of the predicted run-out date to the management center for the machine; and (2) next, from the amount of sensor data required for the causal analysis and the reception rate of sensor data, the management center calculates the number of days required to retrieve the necessary data for the causal analysis and determines whether the management center can retrieve the data by the predicted run-out date.
Owner:HITACHI LTD

Method and device for managing internal memory of mobile communication equipment terminal

The invention relates to the technical field of mobile communication equipment terminals, in particular to a method for managing an internal memory of a mobile communication equipment terminal. The method comprises the following steps of: detecting an upper limit, wherein the mobile communication equipment terminal determines the upper limit of the internal memory of a system; monitoring the internal memory, wherein the mobile communication equipment terminal monitors the internal memory state; and recovering the internal memory, wherein an internal memory recovery algorithm is executed when the mobile communication equipment terminal monitors that the internal memory is insufficient. The internal memory is optimally used, and the browsing experience of middle-and-low mobile communication equipment is ensured by using an intelligent internal memory management algorithm. The cache technology is optimized, page data is cached as much as possible, the frequent networking is reduced, and the traffic is reduced so as to reduce the internet access expenditure of a user. The dynamic internal memory is optimized, and the optimal utilization of the dynamic internal memory is ensured. The internal memory of the mobile communication equipment terminal is intelligently managed, and the smooth operation of programs and the stability of a mobile phone are ensured. The user experience is ensured.
Owner:UCWEB

Camera shooting type remote water meter reading system achieving fast recognition and reading recognition method thereof

Provided are a camera shooting type remote water meter reading system achieving fast recognition and a reading recognition method thereof. The system comprises a camera, a fill light, a single-chip microcomputer, a storage and an RS485 circuit; the camera is arranged to be just opposite to a dial plate of a direct-reading character wheel water meter, the fill light is arranged near the camera, light is emitted to the dial plate of the direct-reading character wheel water meter, the single-chip microcomputer is connected with the camera, the fill light, the storage and the RS485 circuit separately, image information of the dial plate of the direct-reading character wheel water meter is shot by the camera and sent to the single-chip microcomputer, the single-chip microcomputer firstly trains dial plate image training samples to obtain feature vector matrices of numbers from 0 to 9 and form a factor matrix, then the collected dial plate image information is processed to obtain digital pictures of all character wheels, and finally an actual reading of the water meter dial plate is obtained by multiplying the digital picture of each character wheel by the factor matrix. According to the camera shooting type remote water meter reading system achieving fast recognition and the reading recognition method thereof, the problem that an existing water meter reading system single-chip microcomputer is out of memory can be effectively solved, and the cost of the water meter reading system is lowered.
Owner:UNIV OF JINAN
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