CN114816275A - Perfusion data storage method and device, electronic equipment and storage medium - Google Patents
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Abstract
The invention discloses a filling data storage method, a filling data storage device, electronic equipment and a storage medium, which belong to the field of data storage, and the method comprises the steps of inserting all collected filling data into a container when the total amount of stored data does not reach the total capacity of the container; deleting the stored perfusion data at first intervals according to the collection sequence after the total amount of the stored data reaches the total capacity of the container, and inserting part of the collected perfusion data into the container at first intervals; when the filling data inserted into the container at the first interval in the previous step reaches a preset number, the first interval is increased by a first factor to form a new first interval. The stored data volume can be in a controllable range no matter how long the perfusion time is, the performance requirement on a perfusion system memory is favorably reduced, the perfusion data is stored at equal intervals when being recorded, and the requirement of perfusion analysis software needing quick response is met.
Description
Technical Field
The invention relates to a perfusion data storage method and device, electronic equipment and a storage medium, and belongs to the field of data storage.
Background
Perfusion analysis can be used to quantitatively describe the microvascular distribution of the tissue and the state of blood perfusion. A typical perfusion imaging method is to inject a contrast agent (e.g. a fluorescent agent) into a vein bolus of a patient, acquire dynamic data of a plurality of time points for a region of interest (ROI) by using an imaging device such as an infrared camera, so as to record a time concentration curve, which is a change of the concentration of the contrast agent in an organ tissue of the region of interest with time, and finally analyze physiological parameters of microcirculation, mainly including blood flow, blood volume, mean transit time and other hemodynamic parameters, by using a perfusion model according to the data. Wherein the region of interest is determined by a physician or inspector selecting a target organ tissue in the instrument.
In recent years, perfusion analysis has been widely used in the fields of diagnosis, prognosis and efficacy evaluation of tumors, particularly brain tumors. Research shows that tumor angiogenesis determines the malignancy degree of tumor and the prognosis of patients, so that the research on tumor angiogenesis plays an important guiding role in clinical work. Tumor vessels generally exhibit a high microvascular density, and are characterized by high blood flow, high blood volume and high permeability. Perfusion imaging can provide the above blood flow perfusion parameters by studying the microcirculation of tissues, and provides a powerful tool for tumor diagnosis and the like.
Under ideal conditions, the perfusion data at each moment needs to be stored in the perfusion process, and the perfusion system analyzes and calculates the stored data after the perfusion process is finished to obtain a result. However, the duration of the perfusion process is not fixed, as short as two to three minutes and as long as half an hour or even an hour. When the perfusion process is relatively long, there are two problems as follows.
First, the memory of the perfusion system needs to store a large amount of perfusion data, which is a high performance requirement for the memory. This also means that although most perfusion analyses only require 5-10 minutes, the memory of the perfusion system is guaranteed to have the capacity to store one hour of perfusion data, memory utilization is low, and the perfusion system is made expensive.
Second, the large amount of perfusion data stored in the memory takes a lot of time when the perfusion system calculates the result, and is not suitable for perfusion analysis software requiring a fast response.
In view of the second problem, the prior art has solved the problem of extracting a plurality of perfusion data from the stored perfusion data at equal intervals after the perfusion process is completed, and using the extracted perfusion data for perfusion calculation, so that the calculation time is kept within a controllable range. The prior art does not have a good solution to the first problem.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a perfusion data storage method, a perfusion data storage device, electronic equipment and a perfusion data storage medium, which can reduce the performance requirement on a memory of a perfusion system.
The technical scheme adopted by the invention for solving the technical problems is as follows:
in a first aspect, the present application provides a perfusion data storage method, comprising the steps of:
initializing a container with a fixed volume, and presetting a first interval;
inserting all collected perfusion data into the container when the total amount of stored data does not reach the total capacity of the container;
deleting the stored perfusion data at the first interval according to the collection sequence after the total amount of the stored data reaches the total capacity of the container, and inserting part of the collected perfusion data into the container at the first interval;
when the filling data inserted into the container at the first interval in the last step reaches a preset number, increasing the first interval by a first multiple to form a new first interval;
and repeating the two steps after the total amount of the stored data reaches the total capacity of the container until the filling process is finished.
According to the filling data storage method provided by the first aspect, after the total amount of stored data reaches the total capacity of the container, stored filling data and filling data to be recorded are automatically screened according to a first interval, so that a filling system cannot fail due to the fact that filling data are stored fully and new filling data cannot be inserted continuously, the filling system cannot be jammed even if the filling process is lengthened, the filling data in the container are arranged at equal intervals according to the sequence of collection spontaneously, and the data are convenient to call during filling analysis.
Further, after the total amount of the stored data reaches the total capacity of the container, deleting the stored filling data at the first interval in the collection sequence, and inserting part of the collected filling data into the container at the first interval, wherein a new filling data is inserted every time an old filling data is deleted.
After the total amount of the stored data reaches the total capacity of the container, an old data is deleted and a new data is inserted, so that the amount of the filling data in the container is constant, and the occurrence of data jumping is avoided.
Still further, before the step of inserting all collected perfusion data into the container when the total amount of stored data does not reach the total capacity of the container, the method further comprises the steps of: arranging a data serial number for each acquired perfusion data;
the step of initializing a fixed volume container, the step of presetting the first interval comprising:
the container is provided with a plurality of storage positions which can only store one filling data, the storage positions are arranged with position serial numbers, a first interval is preset, and a replacement mark number is preset to be 1;
the step of deleting stored filling data at the first interval in the chronological order of collection and inserting part of the collected filling data into the container at the first interval comprises:
discarding the perfusion data when the data serial number of the collected perfusion data is not an integral multiple of the first interval;
when the data serial number of the acquired perfusion data is an integral multiple of the first interval, deleting old perfusion data in the storage positions with the position serial numbers equal to the replacing mark numbers, adding 1 to the replacing mark numbers to generate new replacing mark numbers, and inserting the acquired perfusion data into the container;
the step of increasing the first interval by a first factor to form a new first interval when the filling data inserted into the container at the same first interval reaches a preset number comprises:
and when the number of the replacement marks is larger than the preset number, making the number of the replacement marks equal to 1, and multiplying the first interval by the first multiple to obtain a new first interval.
Further, the container is a storage queue, and when the filling data is inserted into the storage queue, the filling data is inserted into the tail of the storage queue. The structure of the queue allows the filling data in the stored containers to be always sorted in the order of acquisition.
Further, the first multiple is equal to 2.
Further, the value of the first interval is preset to be 2.
Further, the preset number is half of the total volume of the container.
In a second aspect, the present application provides a perfusion data storage device comprising:
the initialization module is used for initializing a container with fixed capacity and presetting a first interval;
a direct storage module for inserting all collected perfusion data into the container when the total amount of stored data does not reach the total capacity of the container;
the interval storage module is used for deleting the stored perfusion data at the first interval according to the collection sequence after the total amount of the stored data reaches the total capacity of the container, and inserting part of the collected perfusion data into the container at the first interval;
an expanded interval module for increasing the first interval by a first factor to form a new first interval when the filling data inserted into the container at a fixed first interval reaches a preset number.
In a third aspect, the present application provides an electronic device comprising a processor and a memory, wherein the memory stores computer readable instructions, and the computer readable instructions, when executed by the processor, perform the steps of the method according to the first aspect.
In a fourth aspect, the present application provides a storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the method according to the first aspect.
The invention has the beneficial effects that: the perfusion data storage method can ensure that the stored data amount is in a controllable range no matter how long the perfusion time is, so that the perfusion process is not interrupted because new perfusion data cannot be input, the performance requirement on a perfusion system memory is favorably reduced, the perfusion data is stored at equal intervals when being input, the requirement of perfusion analysis software needing quick response is met, and a check report can be quickly generated after the perfusion process is finished.
Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
Fig. 1 is a flowchart of a perfusion data storage method according to an embodiment of the present application.
Fig. 2 is a flowchart of a perfusion analysis method according to an embodiment of the present application.
Fig. 3 is a schematic structural diagram of a perfusion data storage device according to an embodiment of the present application.
Fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
The following disclosure provides many different embodiments or examples for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.
The end point of the perfusion process is determined by the doctor or the inspector, and ideally the perfusion process requires the storage of perfusion data at each time. Ideally, the coordination of the examinees and the examination positions are just convenient for observing blood vessels, the storage capacity of the perfusion system is large enough, and the speed of generating the perfusion analysis report is fast enough. However, the practical situation is complicated and variable, so that the perfusion process is mostly 10 minutes to 15 minutes, two or three minutes as short as possible, and half an hour or even one hour as long as possible. Due to the nature of the data required for perfusion analysis, it is not possible to completely overwrite previously acquired data with later acquired data when the storage capacity is insufficient. In the case of complete loss of previously acquired data, accurate perfusion analysis results cannot be generated. This means that the perfusion system will ensure that its memory has the capacity to store one hour of perfusion data and that the examination will only be terminated after more than one hour. In the face of recording one hour of perfusion data, it takes a long time for a perfusion analysis system to process such huge data, so that it is a common practice to extract a plurality of perfusion data at equal intervals, and to ensure that the extracted plurality of perfusion data has both a portion collected at the beginning and a portion newly recorded at the end. In fact, it takes a long time to extract a plurality of perfusion data at equal intervals in a huge amount of data.
In view of the above problem, referring to fig. 1, the present embodiment provides a first perfusion data storage method, including the following steps:
a: a fixed volume container is initialized, with a first interval preset.
B: all the collected filling data is inserted into the container when the total amount of stored data does not reach the total capacity of the container.
C: and after the total amount of the stored data reaches the total capacity of the container, deleting the stored filling data at first intervals according to the collection sequence, and inserting part of the collected filling data into the container at first intervals.
D: when the filling data inserted into the container at the first interval in the previous step reaches a preset number, the first interval is increased by a first factor to form a new first interval.
Step C, D is repeated until the perfusion process is complete.
Where "container" does not represent memory on hardware, but is a programmed provision for limiting the total amount of priming data, which in some scenarios may be understood as a folder, packet, queue, etc. For example, the container is a storage queue, and when filling data is inserted into the storage queue, the filling data is inserted into the end of the storage queue, so that the filling data stored in the container can be always arranged according to the collecting sequence.
In the prior art, the amount of data ultimately stored before the end of the perfusion process is unpredictable, and can affect the stability of the system when too much data is present in the memory of the perfusion system. When the method of the embodiment is applied, the finally stored data volume does not exceed the total capacity of the container, which is equivalent to that the percentage of the filling data occupying the memory of the filling system is limited in a range, and the stability of the system is favorably ensured. The time of the filling process is 10-15 minutes, so that 15-minute filling data can be stored when the container is fully loaded, screening of the data is not needed in most cases, and the step C is triggered after the filling process exceeds 15 minutes, so that the performance requirement on the filling system memory can be greatly reduced. Preferably, the predetermined number is half of the total volume of the container. Also exemplified as the total volume of the container can store 15 minutes of perfusion data, step D will be triggered for the first time when the perfusion process has proceeded to 30 minutes. The first multiple may be equal to any positive integer greater than 1, and the longest time in the filling process is only about 5 times of the conventional time, so the first multiple is taken as small as 2, and step D will be triggered a second time when the filling process is performed to 60 minutes, taking the example that the total volume of the container can store 15 minutes of filling data as an example. The frequency of collecting in the perfusion process is fixed, the first multiple and the first interval both influence the intensity of the recorded perfusion data, and preferably, the value of the first interval is preset to be 2, so that the recorded perfusion data can be ensured to have higher intensity.
If all the stored filling data meeting the conditions are deleted at the first interval immediately after the step C is triggered, and part of new filling data is inserted at the first interval, the data in the container can be changed greatly, and data jumping is easy to occur. In a preferred embodiment, step C inserts a new filling data every time an old filling data is deleted, so that the amount of filling data in the container is constant, i.e. the percentage of filling system memory occupied by filling data after the first triggering of step C is constant, and it is advantageous to avoid data jumps.
In one embodiment, the perfusion data storage method of the present invention comprises the steps of:
data sequence numbers are arranged for each perfusion data acquired.
Initializing a container with a fixed volume, wherein the container has a plurality of storage locations each of which can store only one filling datum, arranging location numbers for the storage locations, presetting a first interval, and presetting a replacement index number as 1.
All the collected filling data is inserted into the container when the total amount of stored data does not reach the total capacity of the container.
Discarding the collected perfusion data when the data sequence number of the collected perfusion data is not an integral multiple of the first interval after the total amount of the stored data reaches the total capacity of the container; when the data serial number of the acquired perfusion data is an integral multiple of the first interval, deleting old perfusion data in the storage positions with the position serial numbers equal to the replacing mark numbers, adding 1 to the replacing mark numbers to generate new replacing mark numbers, and inserting the acquired perfusion data into the container.
When the number of the replacement mark is larger than half of the total capacity of the container, the number of the replacement mark is made equal to 1, and the first interval is multiplied by the first multiple to obtain a new first interval.
And repeating the two steps after the total amount of the stored data reaches the total capacity of the container until the filling process is finished.
Based on the same principle, the step of determining whether the number of the replacement mark is larger than half of the total capacity of the container may be performed before inserting new filling data and after deleting old data, and thus the filling data storage method may be further expressed as:
s0: arranging a data serial number for each acquired perfusion data;
s1: initializing a container with a fixed volume, presetting a first interval as 2 and a replacing mark as 1; the container comprises a plurality of storage locations each capable of storing only one perfusion data; arranging a position serial number for the storage position;
s2: when the stored number does not reach the total number of storage locations, step S6 is executed; when the stored number reaches the total number of storage locations, step S3 is executed;
s3: when the data sequence number of the perfusion data is an integer multiple of the first interval, performing step S4; discarding the perfusion data when the data sequence number of the perfusion data is not an integral multiple of the first interval;
s4; deleting the perfusion data in the storage positions with the position serial numbers equal to the replacement mark numbers, adding 1 to the replacement mark numbers to generate new replacement mark numbers, and entering step S5;
s5: when the replacement mark number is equal to or less than half of the total capacity of the container, performing step S6; when the replacement mark number is greater than half of the total container capacity, making the replacement mark number equal to 1, multiplying the first interval by 2 to obtain a new first interval, and then performing step S6;
s6: arranging the stored filling data according to the collecting sequence so that at least the last storage position of the container is vacant, and inserting a new filling data into the end of the container;
the steps S2-S6 are repeated until the perfusion process is ended.
The perfusion data storage method enables the data storage quantity to be predictable, does not occupy a large amount of storage space, and is beneficial to reducing the performance requirement of the storage of a perfusion system; after the filling process is finished, the stored data can be directly analyzed and calculated, equal-interval sampling in a huge data container is not needed, and the calculation time during filling analysis is shortened. As shown in FIG. 2, the step of determining whether the number of replacement indicia is greater than one-half of the total container capacity may be preceded by inserting new fill data such that the size of the number of replacement indicia need not be determined when the total amount of stored data does not reach the total container capacity.
Accordingly, the stored quantity (i.e. the total amount of stored data) is represented by count, the replacement mark is represented by replace, the first interval is represented by interval, the total capacity of the container is represented by capacity, and the data serial number is represented by index, and a perfusion analysis method is further provided in the embodiment of the present application as shown in fig. 2. The method comprises the following steps:
s0: arranging a data serial number for each acquired perfusion data;
s1: initializing a container with a fixed volume, presetting a first interval as 2 and a replacing mark as 1; the container comprises a plurality of storage locations each capable of storing only one perfusion data; arranging a position serial number for the storage position;
s11: selecting an interested organ tissue region or blood vessel region ROI from a black and white fluorescence picture of a current frame of the infrared imaging equipment.
S12: and acquiring a black and white fluorescence picture of the next frame from the infrared imaging equipment, and taking the picture of the ROI area as perfusion data.
S2: when the stored number does not reach the total number of storage locations, step S6 is executed; when the stored number reaches the total number of storage locations, step S3 is executed;
s3: when the data sequence number of the perfusion data is an integer multiple of the first interval, performing step S4; discarding the perfusion data when the data sequence number of the perfusion data is not an integral multiple of the first interval;
s4; deleting the perfusion data in the storage positions with the position serial numbers equal to the replacement mark numbers, adding 1 to the replacement mark numbers to generate new replacement mark numbers, and entering step S5;
s5: when the replacement mark number is equal to or less than half of the total capacity of the container, performing step S6; when the replacement mark number is greater than half of the total capacity of the container, making the replacement mark number equal to 1, multiplying the first interval by 2 to obtain a new first interval, and then performing step S6;
s6: arranging the stored filling data according to the collecting sequence so that at least the last storage position of the container is vacant, and inserting a new filling data into the end of the container; proceeding to step S7;
s7: if the perfusion is not finished, the data sequence number index = index + 1 (step S12) returns to step S2; if the perfusion is finished, the step S8 is executed;
s8: a perfusion analysis report is generated using the data in the container.
To facilitate the demonstration of the effect of screening data, taking a container with only 10 storage locations as an example, the inserted data is directly represented by a data serial number, and table 1 is obtained.
TABLE 1
Therefore, the method uses a container with fixed capacity to store and adjust the data in a self-adaptive manner, so that the data are stored at equal intervals, the perfusion analysis result of the data is approximately consistent with the calculation result of a common method (interval extraction), and the occupied space of the data and the calculation time consumption of the perfusion result can be reduced when the method is applied to the perfusion process.
Referring to fig. 3, fig. 3 is a perfusion data storage device according to some embodiments of the present application, including:
an initialization module 201, configured to initialize a container with a fixed capacity, where a first interval is preset;
a direct storage module 202, configured to insert all collected perfusion data into the container when the total amount of stored data does not reach the total capacity of the container;
the interval storage module 203 is used for deleting the stored perfusion data at first intervals according to the collection sequence after the total amount of the stored data reaches the total capacity of the container, and inserting part of the collected perfusion data into the container at the first intervals;
an expanded interval module 204 is configured to increase the first interval by a first factor to form a new first interval when the fill data inserted into the container at a fixed first interval reaches a preset amount.
Preferably, the perfusion data storage device further comprises a data serial number arranging module for arranging a data serial number for each of the collected perfusion data.
Referring to fig. 4, fig. 4 is an electronic device according to an embodiment of the present disclosure, including: a processor 301 and a memory 302, the processor 301 and the memory 302 being interconnected and communicating with each other via a communication bus 303 and/or other form of connection mechanism (not shown), the memory 302 storing a computer program executable by the processor 301, the processor 301 executing the computer program to perform the steps of the above-mentioned two perfusion data storage methods when the computing device is operated.
The embodiment of the application provides a storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the storage medium executes two perfusion data storage methods of the above embodiment. The storage medium may be implemented by any type of volatile or nonvolatile storage device or combination thereof, such as a Static Random Access Memory (SRAM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), an Erasable Programmable Read-Only Memory (EPROM), a Programmable Read-Only Memory (PROM), a Read-Only Memory (ROM), a magnetic Memory, a flash Memory, a magnetic disk, or an optical disk.
In the description of the present specification, reference to the terms "one embodiment," "certain embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (10)
1. A perfusion data storage method, comprising the steps of:
initializing a container with a fixed volume, and presetting a first interval;
inserting all collected perfusion data into the container when the total amount of stored data does not reach the total capacity of the container;
deleting the stored perfusion data at the first interval according to the collection sequence after the total amount of the stored data reaches the total capacity of the container, and inserting part of the collected perfusion data into the container at the first interval;
increasing the first interval by a first factor to form a new first interval when the filling data inserted into the container at the same first interval reaches a preset number;
and repeating the two steps after the total amount of the stored data reaches the total capacity of the container until the filling process is finished.
2. A method for storing perfusion data according to claim 1, wherein, after the total amount of existing stored data has reached the total volume of the container, the stored perfusion data is deleted at the first interval in chronological order of collection, and part of the collected perfusion data is inserted into the container at the first interval, a new one of the perfusion data being inserted for each deletion of an old one of the perfusion data.
3. The method of storing perfusion data according to claim 2, wherein the step of inserting all collected perfusion data into the container when the total amount of stored data does not reach the total capacity of the container, further comprises the steps of: arranging a data serial number for each acquired perfusion data;
the step of initializing a fixed volume container, the step of presetting the first interval comprising:
the container is provided with a plurality of storage positions which can only store one filling data, the storage positions are arranged with position serial numbers, a first interval is preset, and a replacement mark number is preset to be 1;
the step of deleting stored filling data at the first interval in the chronological order of collection and inserting part of the collected filling data into the container at the first interval comprises:
discarding the perfusion data when the data serial number of the collected perfusion data is not an integral multiple of the first interval;
when the data serial number of the acquired perfusion data is an integral multiple of the first interval, deleting the perfusion data in the storage position with the position serial number equal to the replacement mark number, adding 1 to the replacement mark number to generate a new replacement mark number, and inserting the acquired perfusion data into the container;
the step of increasing the first interval by a first factor to form a new first interval when the filling data inserted into the container at the same first interval reaches a preset number comprises:
and when the number of the replacement marks is larger than the preset number, making the number of the replacement marks equal to 1, and multiplying the first interval by the first multiple to obtain a new first interval.
4. The perfusion data storage method according to claim 1, wherein the container is a storage queue, and the perfusion data is inserted to the end of the storage queue when the perfusion data is inserted into the storage queue.
5. The perfusion data storage method of claim 1, wherein the first multiple is equal to 2.
6. The perfusion data storage method according to claim 1, wherein the value of the first interval is preset to 2.
7. The perfusion data storage method of claim 1, wherein the preset number is half of the total volume of the containers.
8. A perfusion data storage device, comprising:
the initialization module is used for initializing a container with fixed capacity and presetting a first interval;
a direct storage module for inserting all collected perfusion data into the container when the total amount of stored data does not reach the total capacity of the container;
the interval storage module is used for deleting the stored filling data at the first interval according to the collection sequence after the total amount of the stored data reaches the total capacity of the container, and inserting part of the collected filling data into the container at the first interval;
an expanded interval module for increasing the first interval by a first factor to form a new first interval when the filling data inserted into the container at a fixed first interval reaches a preset number.
9. An electronic device comprising a processor and a memory, said memory storing computer readable instructions which, when executed by said processor, perform the steps of the method according to any one of claims 1 to 7.
10. A storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, performs the steps of the method according to any one of claims 1-7.
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| CN202210740866.0A CN114816275B (en) | 2022-06-28 | 2022-06-28 | Perfusion data storage method and device, electronic equipment and storage medium |
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| CN202210740866.0A CN114816275B (en) | 2022-06-28 | 2022-06-28 | Perfusion data storage method and device, electronic equipment and storage medium |
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| US10282114B1 (en) * | 2017-03-22 | 2019-05-07 | State Farm Mutual Automobile Insurance Company | System and computer-implemented method for balancing loads across data storage pools |
| CN114205641A (en) * | 2021-11-30 | 2022-03-18 | 杭州华橙软件技术有限公司 | Video data processing method and device |
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| CN106648446A (en) * | 2015-10-30 | 2017-05-10 | 阿里巴巴集团控股有限公司 | Time series data storage method and apparatus, and electronic device |
| US20170286497A1 (en) * | 2016-04-05 | 2017-10-05 | Fractal Industries, Inc. | System for capture, analysis and storage of time series data from sensors with heterogeneous report interval profiles |
| US10282114B1 (en) * | 2017-03-22 | 2019-05-07 | State Farm Mutual Automobile Insurance Company | System and computer-implemented method for balancing loads across data storage pools |
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