CN113940685A - Long-time-course dynamic electrocardiogram data extension and transmission equipment and system and electrocardiogram data extension and transmission method - Google Patents
Long-time-course dynamic electrocardiogram data extension and transmission equipment and system and electrocardiogram data extension and transmission method Download PDFInfo
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Abstract
The application provides a long-term dynamic electrocardiogram data extension device, a long-term dynamic electrocardiogram data extension system and an electrocardiogram data extension method, wherein the long-term dynamic electrocardiogram data extension device comprises a BLE host module, a storage module, a main control module and a communication module, and the BLE host module, the storage module and the communication module are all connected with the main control module; the BLE host module is used for connecting an electrocardiogram recorder; the storage module is used for storing the obtained dynamic electrocardiogram original data; the communication module is used for transmitting the electrocardio diagnosis data obtained by analysis and processing to the data server; the main control module is used for driving the BLE host module, the storage module and the communication module. The long-term dynamic electrocardiogram data extension and transmission equipment provided by the invention has high function integration level, can be automatically connected with an electrocardiogram recorder, analyzes and processes electrocardiogram data, and uploads diagnosis data, so that the operation burden of a user is reduced, and the use cost is reduced.
Description
Technical Field
The invention relates to an electrocardiogram data transmission technology, in particular to long-term dynamic electrocardiogram data extension and transmission equipment, a long-term dynamic electrocardiogram data extension and transmission system and an electrocardiogram data extension and transmission method.
Background
The intelligent medical equipment is used for acquiring, storing, transmitting and analyzing important biological information related to a patient to quickly obtain a diagnosis result by applying an advanced sensing technology, an Internet of things technology and artificial intelligence to the medical equipment. The intelligent medical equipment not only enables medical care work to be paperless, intelligent and efficient, reduces the working intensity of medical care personnel, improves the diagnosis and treatment speed, enables diagnosis and treatment to be more accurate, but also provides comprehensive, professional and personalized medical experience for patients.
The intelligent medical equipment has huge data volume of human biological information required to be acquired, stored and transmitted, the data content is extremely complex and various, and the operation of a data analysis processing core algorithm is extremely time-consuming and resource-consuming, so that a plurality of defects exist. For example, the existing long-time dynamic electrocardiograph recorder has the following defects: (1) a smart phone is required to be equipped, the long-term dynamic electrocardiograph recorder transmits the acquired original electrocardiograph data to the smart phone, and a core algorithm for analyzing and processing the electrocardiograph data can only run on the smart phone, so that the use cost is increased; (2) the interconnection of the electrocardiograph recorder and the smart phone needs manual operation, and the use burden of the old, the weak, the sick and the disabled is increased. (3) The continuous integrity of the dynamic electrocardiogram data cannot be guaranteed.
Disclosure of Invention
The invention aims to provide long-term dynamic electrocardiogram data extension and transmission equipment and system to reduce the operation burden of a user and reduce the use cost.
Another objective of the present invention is to provide an electrocardiographic data extension method based on the above long-time dynamic electrocardiographic data extension device and system, so as to ensure the continuous integrity of data and reduce data errors.
The following presents a simplified summary of one or more aspects in order to provide a basic understanding of such aspects. This summary is not an extensive overview of all contemplated aspects, and is intended to neither identify key or critical elements of all aspects nor delineate the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description that is presented later.
According to a first aspect of the invention, a long-term dynamic electrocardiographic data extension device is provided, which comprises a BLE host module, a storage module, a master control module and a communication module, wherein the BLE host module, the storage module and the communication module are all connected with the master control module; the BLE host module is used for connecting an electrocardiogram recorder; the storage module is used for storing the obtained dynamic electrocardiogram original data; the communication module is used for transmitting the electrocardio diagnosis data obtained by analysis and processing to the data server; the main control module is used for driving the BLE host module, the storage module and the communication module.
In one embodiment, the BLE host module and the electrocardiograph are using SOC chips from the same manufacturer running a BLE5.0 protocol stack.
In one embodiment, the master control module internally comprises a high-capacity DDR.
In one embodiment, the memory module capacity is greater than 2 GB.
In one embodiment, the storage module is an SPI interface or an SDIO interface.
According to a second aspect of the present invention, there is provided an electrocardiographic data extending system, comprising an electrocardiograph recorder, a long-term dynamic electrocardiographic data extending device, and a data server, wherein the electrocardiograph recorder is in signal connection with the long-term dynamic electrocardiographic data extending device, the long-term dynamic electrocardiographic data extending device is in signal connection with the data server, and the long-term dynamic electrocardiographic data extending device is as described in the first aspect.
According to a third aspect of the present invention, there is provided an electrocardiographic data extension method, including the steps of:
acquiring electrocardiogram data by an electrocardiogram recorder;
the long-time-course dynamic electrocardiogram data extension device is connected with the electrocardiogram recorder through BLE;
acquiring the electrocardiogram data by long-time-course dynamic electrocardiogram data extension and transmission equipment;
storing the electrocardiogram data into a storage module by the long-time-course dynamic electrocardiogram data extension and transmission equipment;
the long-time-course dynamic electrocardiogram data extension and transmission equipment verifies the data by using a data continuity verification algorithm;
reading data of the storage module by long-time-course dynamic electrocardiogram data extension equipment;
analyzing the electrocardiogram data by the long-time-course dynamic electrocardiogram data extension and transmission equipment to obtain electrocardiogram diagnostic data;
the long-time dynamic electrocardiogram data extension device uploads electrocardiogram diagnosis data to the data server.
In an embodiment, the storing the electrocardiographic data into the storage module by the long-time-course dynamic electrocardiographic data extension device includes:
sequentially storing sampling point data into a primary queue, wherein the sampling point data is acquired by an electrocardiogram recorder according to a fixed sampling frequency;
when the first-level queue is full of A sampling points, effective electrocardiogram data are reserved and then the queue is queued in a second-level queue;
when the second-level queue is full of B sampling points, the second-level queue is placed into a developed high-capacity RAM pool;
and when the electrocardio data in the RAM pool is larger than the C value, writing the electrocardio data into the storage block, and immediately reading and comparing after writing one storage block.
In one embodiment, the data continuity check algorithm includes:
acquiring a reading pointer of the electrocardiogram recorder;
acquiring a writing pointer of the electrocardiograph recorder;
calculating to obtain the total data volume of the current stored data of the electrocardiograph;
acquiring data volume acquired by single interaction of the long-time dynamic electrocardiogram data extension device and the electrocardiogram recorder;
accumulating according to the BLE data transmission times, and calculating to obtain the data volume received by the long-time dynamic electrocardiogram data extension and transmission equipment;
comparing the data volume received by the long-term dynamic electrocardiogram data extension device with the total data volume of the current stored data of the electrocardiogram recorder, if the data volume is equal to the total data volume, judging that the data received by the long-term dynamic electrocardiogram data extension device is continuous and complete, and performing subsequent steps; if the data is not equal, the data received by the long-term dynamic electrocardiogram data extension equipment is judged to be not continuous and complete, and the electrocardiogram data is obtained again from the disconnected address.
In an embodiment, the long-term dynamic electrocardiographic data extension device determines whether to read the data of the storage module according to the data amount in the current storage module.
The embodiment of the invention has the beneficial effects that: the long-term dynamic electrocardiogram data extension and transmission equipment provided by the invention has high function integration level, can be automatically connected with an electrocardiogram recorder, analyzes and processes electrocardiogram data, and uploads diagnosis data, so that the operation burden of a user is reduced, and the use cost is reduced.
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In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
The above features and advantages of the present disclosure will be better understood upon reading the detailed description of embodiments of the disclosure in conjunction with the following drawings. In the drawings, components are not necessarily drawn to scale, and components having similar relative characteristics or features may have the same or similar reference numerals.
FIG. 1 is a block diagram of an electrocardiographic power transmission system according to an embodiment of the present application;
FIG. 2 is a schematic flow chart of an electrocardiographic data extension method according to an embodiment of the present application;
fig. 3 is a schematic flow chart of a data continuity check algorithm according to an embodiment of the present application.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. It is noted that the aspects described below in connection with the figures and the specific embodiments are only exemplary and should not be construed as imposing any limitation on the scope of the present invention.
As shown in fig. 1, an embodiment of the present application provides an electrocardiographic data transmission system, which includes an electrocardiograph 5, a long-term dynamic electrocardiographic data transmission device, and a data server 6, wherein the electrocardiograph 5 is in signal connection with the long-term dynamic electrocardiographic data transmission device, and the long-term dynamic electrocardiographic data transmission device is in signal connection with the data server 6. It should be noted that, the signal connection mode may be various, for example, bluetooth, 4G, 5G, etc. In this embodiment, the electrocardiograph recorder 5 is connected to the long-term dynamic electrocardiographic data transfer device through a BLE (bluetooth low energy) wireless channel, and the long-term dynamic electrocardiographic data transfer device is connected to the data server 6 through a 4G wireless network.
The long-term dynamic electrocardiogram data extension device comprises a BLE host module 1, a storage module 2, a master control module 3 and a communication module 4, wherein the BLE host module 1, the storage module 2 and the communication module 4 are all connected with the master control module 3. In this embodiment, BLE host module 1 is connected with main control module 3 through USART1 interface, and storage module 2 is connected with main control module 3 through SPI or SDIO interface, and communication module 4 is connected with main control module through USART2 interface.
In terms of functions, the BLE host module 1 is used for connecting an electrocardiograph recorder 5; the storage module 2 is used for storing the obtained dynamic electrocardiogram original data; the communication module 4 is used for transmitting the electrocardio diagnosis data obtained by analysis and processing to the data server 6; the main control module 3 is used for driving the BLE host module 1, the storage module 2 and the communication module 4.
It should be noted that BLE host module 1 needs to use an SOC chip running the BLE5.0 protocol stack from the same manufacturer as electrocardiograph 5. The main control module 3 adopts an MCU with a DDR memory with 32MB capacity. The capacity of the memory module 2 should be greater than 2 GB.
The BLE host module 1 sends the received electrocardio data to the main control module 3 through a serial port, the main control module 3 writes the data into the storage module 2 in a file form through a FATFS file system after receiving the dynamic electrocardio data, the main control module 3 reads the electrocardio data files in the storage module 2 at intervals, a core algorithm of electrocardio analysis processing is operated to obtain a diagnosis result, and finally the diagnosis result is uploaded to the data server 6 in an http protocol according to a specific format through the communication module 4.
The method for automatically connecting the long-time dynamic electrocardiogram data extension and transmission equipment with the electrocardiogram recorder comprises the following steps:
firstly, the electrocardiograph recorder sets a fixed broadcast name and a specific broadcast UUID, and adds the MAC address of the electrocardiograph recorder into broadcast data;
adding the broadcast name and the broadcast UUID in the step one into a scanning filtering condition by the BLE host module 1;
the BLE host module 1 scans the filtered electrocardiograph recorder, adds the MAC address and other information of the electrocardiograph recorder into a connection white list and stores the information into an internal Flash;
fourthly, successfully binding the BLE host module 1 and the electrocardiogram recorder one to one through the third step;
after the BLE host module 1 is started up next time, the BLE host module can be automatically connected with the electrocardiogram recording instrument in the white list;
and sixthly, a data interaction process of password verification can be carried out after the electrocardio recorder is connected, and the data is prevented from being stolen by a third party.
Corresponding to the above electrocardiographic data extension system, an embodiment of the present application further provides an electrocardiographic data extension method, as shown in fig. 2, including the following steps:
a. acquiring electrocardiogram data by an electrocardiogram recorder;
b. the long-time-course dynamic electrocardiogram data extension device is connected with the electrocardiogram recorder through BLE;
c. acquiring the electrocardiogram data by long-time-course dynamic electrocardiogram data extension and transmission equipment;
d. the long-time-course dynamic electrocardiogram data extension and transmission equipment verifies the data by using a data continuity verification algorithm;
e. storing the electrocardiogram data into a storage module by the long-time-course dynamic electrocardiogram data extension and transmission equipment;
f. reading data of the storage module by long-time-course dynamic electrocardiogram data extension equipment;
g. analyzing the electrocardiogram data by the long-time-course dynamic electrocardiogram data extension and transmission equipment to obtain electrocardiogram diagnostic data;
f. the long-time dynamic electrocardiogram data extension device uploads electrocardiogram diagnosis data to the data server.
In a possible embodiment, the long-term dynamic electrocardiographic data extension device in step f determines whether to read the data of the storage module according to the data amount in the current storage module.
In a possible embodiment, the step c of obtaining the electrocardiographic data by the long-term dynamic electrocardiographic data extension device includes:
c1. storing the sampling point data into a first-level queue (FIFO, first-in first-out), wherein the sampling point data is collected by an electrocardiogram recorder according to a fixed sampling frequency (for example, 250 Hz);
c2. when the first-level queue is full of A (for example, 10) sampling points, the valid electrocardiogram data is reserved and then the valid electrocardiogram data is queued in the second-level queue;
c3. when the second-level queue is full of B (for example, 50) sampling points, the second-level queue is put into a developed high-capacity RAM pool;
c4. and when the electrocardio data in the RAM pool is larger than the C value, writing the electrocardio data into the storage block, and immediately reading and comparing every time one storage block is written, so as to prevent the failure of writing the storage module.
By the data acquisition mode, the continuity of the sampling points can be ensured.
As shown in fig. 3, in step d, the adopted data continuity check algorithm includes:
1) acquiring a reading pointer of the electrocardiogram recorder;
2) acquiring a writing pointer of the electrocardiograph recorder;
3) calculating to obtain the total data volume of the current stored data of the electrocardiograph;
the total data volume of the current stored data of the electrocardiograph recorder is (write pointer-read pointer)/the effective electrocardiograph data length of each data packet, and 1 needs to be added if the total data volume cannot be divided by the total data volume.
4) Acquiring data volume acquired by single interaction of the long-time dynamic electrocardiogram data extension device and the electrocardiogram recorder;
the data volume acquired by single interaction can be returned by the BLE protocol stack bottom layer;
5) accumulating according to the BLE data transmission times, and calculating to obtain the data volume received by the long-time dynamic electrocardiogram data extension and transmission equipment;
6) comparing the data volume received by the long-term dynamic electrocardiogram data extension device with the total data volume of the current stored data of the electrocardiogram recorder, if the data volume is equal to the total data volume, judging that the data received by the long-term dynamic electrocardiogram data extension device is continuous and complete, and performing subsequent steps; if the data is not equal, the data received by the long-term dynamic electrocardiogram data extension equipment is judged to be not continuous and complete, and the electrocardiogram data is obtained again from the disconnected address.
The condition that the data volume received by the long-time dynamic electrocardiogram data extension device is equal to the total data volume of the current stored data of the electrocardiogram recorder is as follows: the address of the data header is write pointer-data volume acquired by single interaction +4 and the total data packet currently stored by the electrocardiograph recorder is BLE data transmission times.
The data continuity check algorithm and the data storage method effectively ensure the continuity integrity of the data and can effectively avoid causing data errors.
For example:
I. each transmitted packet data is 4 bytes of address information r _ addr +200 effective electrocardiogram data length, the effective electrocardiogram data length is valued according to MTU in BLE protocol, and the effective electrocardiogram data length is added with address information < ═ MTU, wherein 200 is taken;
II. Acquiring current read-write pointer positions rd _ addr and wr _ addr of the long-term dynamic electrocardiograph recorder;
if (wr _ addr-ra _ addr)% 200 is 0, the number of packets to be transmitted, frame _ total, is (wr _ addr-rd _ addr)/200, and if (wr _ addr-rd _ addr)% 200! When the value is 0, the frame _ total is (wr _ addr-rd _ addr)/200+ 1;
IV, adding 1 to a transfer _ count of the total data transmission times every time of transmission, wherein the data length data _ length of transmission is returned by a BLE protocol stack bottom layer;
v, address information r _ addr in the current packet is wr _ addr-data _ length + 4;
VI、frame_total＝＝transfer_count；
VII, judging whether V and VI are established or not so as to judge whether the data are continuous and complete or not;
and if the data is continuous and complete, storing the data into an external Flash storage module and updating the read pointer into the address information of the last packet of data. If the data are missing, the addresses are sequentially compared to find the breakpoint, the address of the reading pointer is updated to be the address of the breakpoint, and the electrocardiogram data are obtained again.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosure is provided to enable any person skilled in the art to make or use the disclosure. Various modifications to the disclosure will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other variations without departing from the spirit or scope of the disclosure. Thus, the disclosure is not intended to be limited to the examples and designs described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
The above description is only a preferred example of the present application and should not be taken as limiting the present application, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present application should be included in the scope of the present application.
Claims (10)
1. A long-term dynamic electrocardiogram data extension and transmission device is characterized in that: the BLE host computer module, the storage module, the main control module and the communication module are all connected with the main control module; wherein the content of the first and second substances,
the BLE host module is used for connecting an electrocardiogram recorder;
the storage module is used for storing the obtained dynamic electrocardiogram original data;
the communication module is used for transmitting the electrocardio diagnosis data obtained by analysis and processing to the data server;
the main control module is used for driving the BLE host module, the storage module and the communication module.
2. The long-term dynamic electrocardiographic data extension device according to claim 1, characterized in that: the BLE host module and the electrocardiograph recorder use SOC chips from the same manufacturer that run the BLE5.0 protocol stack.
3. The long-term dynamic electrocardiographic data extension device according to claim 2, characterized in that: the main control module internally comprises a high-capacity DDR.
4. The long-term dynamic electrocardiographic data extension device according to claim 3, wherein: the capacity of the storage module is larger than 2 GB.
5. The long-term dynamic electrocardiographic data extension device according to claim 4, wherein: the storage module is an SPI interface or an SDIO interface.
6. An electrocardio extension system is characterized in that: the long-time dynamic electrocardiogram data transmission device comprises an electrocardiogram recorder, a long-time dynamic electrocardiogram data transmission device and a data server, wherein the electrocardiogram recorder is in signal connection with the long-time dynamic electrocardiogram data transmission device, the long-time dynamic electrocardiogram data transmission device is in signal connection with the data server, and the long-time dynamic electrocardiogram data transmission device is as claimed in any one of claims 1 to 5.
7. An electrocardiogram data extension method is characterized by comprising the following steps:
acquiring electrocardiogram data by an electrocardiogram recorder;
the long-time-course dynamic electrocardiogram data extension device is connected with the electrocardiogram recorder through BLE;
acquiring the electrocardiogram data by long-time-course dynamic electrocardiogram data extension and transmission equipment;
the long-time-course dynamic electrocardiogram data extension and transmission equipment verifies the data by using a data continuity verification algorithm;
storing the electrocardiogram data into a storage module by the long-time-course dynamic electrocardiogram data extension and transmission equipment;
reading data of the storage module by long-time-course dynamic electrocardiogram data extension equipment;
analyzing the electrocardiogram data by the long-time-course dynamic electrocardiogram data extension and transmission equipment to obtain electrocardiogram diagnostic data;
the long-time dynamic electrocardiogram data extension device uploads electrocardiogram diagnosis data to the data server.
8. The method for extending and transmitting the electrocardiographic data according to claim 7, wherein the step of acquiring the electrocardiographic data by the long-term dynamic electrocardiographic data extending and transmitting device comprises:
sequentially storing sampling point data into a primary queue, wherein the sampling point data is acquired by an electrocardiogram recorder according to a fixed sampling frequency;
when the first-level queue is full of A sampling points, effective electrocardiogram data are reserved and then the queue is queued in a second-level queue;
when the second-level queue is full of B sampling points, the second-level queue is placed into a developed high-capacity RAM pool;
and when the electrocardio data in the RAM pool is larger than the C value, writing the electrocardio data into the storage block, and immediately reading and comparing after writing one storage block.
9. The electrocardiographic data extending method according to claim 7, wherein the data continuity check algorithm includes:
acquiring a reading pointer of the electrocardiogram recorder;
acquiring a writing pointer of the electrocardiograph recorder;
calculating to obtain the total data volume of the current stored data of the electrocardiograph;
acquiring data volume acquired by single interaction of the long-time dynamic electrocardiogram data extension device and the electrocardiogram recorder;
accumulating according to the BLE data transmission times, and calculating to obtain the data volume received by the long-time dynamic electrocardiogram data extension and transmission equipment;
comparing the data volume received by the long-term dynamic electrocardiogram data extension device with the total data volume of the current stored data of the electrocardiogram recorder, if the data volume is equal to the total data volume, judging that the data received by the long-term dynamic electrocardiogram data extension device is continuous and complete, and performing subsequent steps; if the data is not equal, the data received by the long-term dynamic electrocardiogram data extension equipment is judged to be not continuous and complete, and the electrocardiogram data is obtained again from the disconnected address.
10. The electrocardiographic data extending and transferring method according to claim 7, wherein the long-term dynamic electrocardiographic data extending and transferring device determines whether to read the data of the storage module according to the data amount in the current storage module.
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