CN116763260A - Portable biological signal synchronous processing equipment and method - Google Patents
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Abstract
The application discloses portable biological signal synchronous processing equipment, wherein a multi-signal controller main board in the equipment comprises a dispatching control module, a sensor unit for providing a hot plug interface, a signal conversion module and a data filter; when the scheduling control module receives a signal processing request, generating multiple biological signal synchronous acquisition instructions at a first moment; when the sensor unit receives the instruction, a plurality of biological signals are synchronously collected through a sensor connected with the hot plug interface; the signal conversion module is used for resolving a plurality of biological signals to obtain waveform data of each biological signal; the data filter generates target data for drawing a waveform image from the waveform data. The application adds a multi-signal controller main board in the portable equipment, the main board integrates a sensor unit for providing a hot plug interface, and can process a plurality of biological signals at the same time, so that each wave form has a unified reference point, and a plurality of paths of physiological signals which are truly synchronous in time sequence and can be used for explaining each other are obtained.
Description
Technical Field
The application relates to the technical field of sensor data processing, in particular to portable biological signal synchronous processing equipment and a method, which can be used for compiling files generated by a low-code development platform.
Background
Bioelectric currents of cells and nerve cells can generate magnetic fields, and biological magnetic field signals generated by organisms carry valuable information such as physiological processes and pathology thereof. The physiological and pathological information carried by the circulatory signals represented by electrocardio, respiration and pulse influence each other, and only the completely synchronous high-precision signals can support the research and application of the current related fields. How to acquire multiple biological signals with absolute synchronization with high accuracy is a matter of great desire for research and development personnel.
In the prior art, the portable distribution equipment exists in the form of an independent functional module, for example, the portable electrocardiosignal acquisition equipment only has electrocardiosignal acquisition and calculation functions; the portable pulse signal acquisition equipment only has pulse wave signal acquisition and calculation; the portable respiratory signal acquisition equipment only has respiratory wave signal acquisition and calculation. The portable devices are independent in form, independent in power supply and independent in function. Because the portable equipment in the prior art is not triggered at the same initial time point when the waveforms of the multipath sensor are acquired and resolved, each path of waveform has no uniform reference point, larger uncontrollable time delay exists between the waveforms, the mutual interpretation of key physiological signals cannot be supported, and the research and the application of the related fields are limited.
Disclosure of Invention
The embodiment of the application provides portable biological signal synchronous processing equipment. The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview and is intended to neither identify key/critical elements nor delineate the scope of such embodiments. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.
In a first aspect, an embodiment of the present application provides a portable biological signal synchronization processing apparatus, including:
a multi-signal controller motherboard; wherein,,
the multi-signal controller main board comprises a dispatching control module, a sensor unit for providing a hot plug interface, a signal conversion module and a data filter; the dispatching control module, the sensor unit, the signal conversion module and the data filter are electrically connected; wherein,,
the scheduling control module is used for generating multiple biological signal synchronous acquisition instructions at a first moment when receiving a signal processing request and sending the multiple biological signal synchronous acquisition instructions to the sensor unit;
the sensor unit is used for triggering signal acquisition operation at a second moment when receiving a plurality of biological signal synchronous acquisition instructions so as to synchronously acquire a plurality of biological signals for a target object through a sensor connected with the hot plug interface and send the biological signals to the signal conversion module; the first moment is earlier than the second moment;
the signal conversion module is used for resolving the received multiple biological signals to obtain waveform data of each biological signal and sending the waveform data to the data filter;
and the data filter is used for generating target data for drawing the waveform image according to the received waveform data and sending the target data to the upper computer for display.
Optionally, the sensor connected to the hot plug interface includes an electrocardiograph sensor, a respiratory wave sensor, and a pulse wave sensor; wherein,,
the electrocardio sensor is a three-lead electrode slice and is used for collecting electrocardio biological signals of a target object;
the pulse wave sensor is a pulse signal acquisition flexible sensor and is used for acquiring a pulse biological signal of a target object;
the respiratory wave sensor is a respiratory signal acquisition flexible sensor and is used for acquiring respiratory biological signals of a target object.
Optionally, generating target data for drawing a waveform image according to the received waveform data includes:
determining a filter window size;
inputting the received waveform data into a pre-established filtering window to obtain a plurality of first original data which are equal to the size of the filtering window in the filtering window;
determining and deleting the maximum value and the minimum value in the first original data to obtain second original data;
performing average value processing on a plurality of second original data, and generating target data for drawing a waveform image after all received waveform data processing is finished; wherein,,
the mean value calculation formula is:
a= (va+vb+ … +vn-Vmin-Vmax)/(a-2); a is an average value, va, vb and Vn are a plurality of first original data; vmin, vmax are the maximum and minimum values of the plurality of first raw data.
Optionally, determining and deleting the maximum value and the minimum value in the plurality of first original data includes:
comparing the sizes of the first element and the second element; the first element and the second element are adjacent two elements in the plurality of first original data;
exchanging the position of the second element with the first element in the case that the first element is smaller than the second element;
when the size of any two adjacent elements in the plurality of first original data accords with that of the second element and is larger than that of the first element, an original data sequence is obtained;
taking the first two elements in the original data sequence as a maximum value and a minimum value;
the maximum and minimum values are deleted.
Optionally, the method for sending to the upper computer for display includes:
converting target data for drawing a waveform image into unsigned integer data of a preset number of bytes;
encapsulating the unsigned integer data according to a preset protocol frame format to obtain an encapsulated data packet;
and transmitting the encapsulated data packet to an upper computer to draw a waveform image for display.
Optionally, the device further comprises a power supply, wherein the power supply is used for supplying power to the multi-signal controller main board; wherein,,
the power supply is a detachable battery pack or a chargeable and dischargeable battery module.
Optionally, the signal conversion module is an ADC analog-to-digital converter chip; wherein,,
the ADC analog-to-digital converter chip is used to convert the biological signal into a digital signal.
Optionally, the calculating the received multiple biological signals to obtain waveform data of each biological signal includes:
for each of the plurality of received biological signals, determining an actual sampled biological signal at a time other than the specified sampling time in each biological signal in the case where each biological signal is determined to be located in the limit region at the specified sampling time;
determining digital signals corresponding to each biological signal according to the fixed relation among the actually sampled biological electric signals, the preset digital signals and the biological electric signals;
the digital signal corresponding to each biological signal is used as waveform data.
Optionally, determining that each biological signal is located in the limit region at the specified sampling time includes:
and determining that each biological signal is positioned in a limit area at the appointed sampling moment based on the magnitude relation between the actual sampling value of the output biological signal at the appointed sampling moment and the actual sampling threshold value.
In a second aspect, an embodiment of the present application provides a portable bio-signal synchronization processing method, which is applied to a portable bio-signal synchronization processing device including a multi-signal controller main board, where the multi-signal controller main board includes a schedule control module, a sensor unit that provides a hot plug interface, a signal conversion module, and a data filter, and the method includes:
when a signal processing request is received through a scheduling control module, generating multiple biological signal synchronous acquisition instructions at a first moment, and sending the multiple biological signal synchronous acquisition instructions to a sensor unit;
triggering signal acquisition operation at a second moment when a plurality of biological signal synchronous acquisition instructions are received through the sensor unit, synchronously acquiring a plurality of biological signals of a target object through a sensor connected to the hot plug interface, and sending the biological signals to the signal conversion module; the first moment is earlier than the second moment;
the received multiple biological signals are resolved through a signal conversion module, waveform data of each biological signal are obtained, and the waveform data are sent to a data filter;
and generating target data for drawing the waveform image according to the received waveform data through a data filter, and sending the target data to an upper computer for display.
The technical scheme provided by the embodiment of the application can have the following beneficial effects:
in the portable biological signal synchronous processing device provided by the embodiment of the application, a multi-signal controller main board of the device comprises a dispatching control module, a sensor unit for providing a hot plug interface, a signal conversion module and a data filter; when the scheduling control module receives a signal processing request, generating multiple biological signal synchronous acquisition instructions at a first moment; when the sensor unit receives the instruction, a plurality of biological signals are synchronously collected through a sensor connected with the hot plug interface; the signal conversion module is used for resolving a plurality of biological signals to obtain waveform data of each biological signal; the data filter generates target data for drawing a waveform image from the waveform data. The application adds the multi-signal controller main board in the portable equipment, the main board integrates the sensor unit for providing the hot plug interface, a plurality of sensors can be inserted into the sensor unit and process a plurality of biological signals at the same time, so that each path of waveform has a unified reference point, and a plurality of paths of key biological signals can support interpretation mutually.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.
Fig. 1 is a schematic diagram of an apparatus structure of a portable biological signal synchronous processing apparatus according to an embodiment of the present application;
FIG. 2 is a schematic illustration of a biological signal processing process according to an embodiment of the present application;
FIG. 3 is a process schematic of another biological signal processing process provided by an embodiment of the present application;
FIG. 4 is a schematic diagram of a controller motherboard implementation according to an embodiment of the present application;
fig. 5 is a schematic flow chart of a portable biological signal synchronous processing method according to an embodiment of the application.
Detailed Description
The following description and the drawings sufficiently illustrate specific embodiments of the application to enable those skilled in the art to practice them.
It should be understood that the described embodiments are merely some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the application as detailed in the accompanying claims.
In the description of the present application, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art. Furthermore, in the description of the present application, unless otherwise indicated, "a plurality" means two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.
So far, the portable distribution equipment exists in the form of independent functional modules, such as the portable electrocardiosignal acquisition equipment only has electrocardiosignal acquisition and calculation; the portable pulse signal acquisition equipment only has pulse wave signal acquisition and calculation; the portable respiratory signal acquisition equipment only has respiratory wave signal acquisition and calculation. The portable devices are independent in form, independent in power supply and independent in function. Because the portable equipment in the prior art is not triggered at the same initial time point when the waveforms of the multi-channel sensor are acquired and resolved, each channel of waveform has no uniform reference point, and large uncontrollable time delay exists between the waveforms, so that the multi-channel key biological signals cannot be mutually interpreted. Accordingly, the present application has been made to solve the above-mentioned problems occurring in the related art, and provides a portable biological signal synchronous processing apparatus and method. In the portable biological signal synchronous processing device provided by the embodiment of the application, a multi-signal controller main board of the device comprises a dispatching control module, a sensor unit for providing a hot plug interface, a signal conversion module and a data filter; when the scheduling control module receives a signal processing request, generating multiple biological signal synchronous acquisition instructions at a first moment; when the sensor unit receives the instruction, a plurality of biological signals are synchronously collected through a sensor connected with the hot plug interface; the signal conversion module is used for resolving a plurality of biological signals to obtain waveform data of each biological signal; the data filter generates target data for drawing a waveform image from the waveform data. The application adds a multi-signal controller main board in the portable equipment, the main board integrates a sensor unit for providing a hot plug interface, a plurality of sensors can be inserted into the sensor unit and process a plurality of biological signals at the same time, so that each path of waveforms has a unified reference point, the probability of misdiagnosis is reduced, and the application adopts an exemplary embodiment for detailed description.
Referring to fig. 1, fig. 1 is a schematic diagram of an apparatus structure of a portable biological signal synchronization processing apparatus according to an embodiment of the present application, where the apparatus includes a multi-signal controller motherboard; the multi-signal controller main board comprises a dispatching control module, a sensor unit for providing a hot plug interface, a signal conversion module and a data filter; the dispatching control module, the sensor unit, the signal conversion module and the data filter are electrically connected; the scheduling control module is used for generating multiple biological signal synchronous acquisition instructions at a first moment when receiving a signal processing request and sending the multiple biological signal synchronous acquisition instructions to the sensor unit; the sensor unit is used for triggering signal acquisition operation at a second moment when receiving a plurality of biological signal synchronous acquisition instructions so as to synchronously acquire a plurality of biological signals for a target object through a sensor connected with the hot plug interface and send the biological signals to the signal conversion module; the first moment is earlier than the second moment; the signal conversion module is used for resolving the received multiple biological signals to obtain waveform data of each biological signal and sending the waveform data to the data filter; and the data filter is used for generating target data for drawing the waveform image according to the received waveform data and sending the target data to the upper computer for display. By providing the sensor unit with the hot plug interface, different biological signal acquisition sensors can be inserted on the sensor unit, so that the flexibility and diversity of biological signal acquisition of the portable equipment are improved.
Further, the multiple biological signal acquisition units are integrated on the same controller main board, and standby and resolving tasks are uniformly controlled and scheduled by a core processing unit of the controller main board.
Specifically, the scheduling control module adopts the FPGA as a core processing unit, and maximally utilizes the hardware capability of parallel operation of the FPGA, so that the acquisition and the calculation of the multichannel biological signals realize synchronous operation in a true sense.
In the embodiment of the application, the sensors connected to the hot plug interface comprise an electrocardio sensor, a respiratory wave sensor and a pulse wave sensor; the electrocardio sensor is a three-lead electrode plate and is used for collecting electrocardio biological signals of a target object; the pulse wave sensor is a pulse signal acquisition flexible sensor and is used for acquiring a pulse biological signal of a target object; the respiratory wave sensor is a respiratory signal acquisition flexible sensor and is used for acquiring respiratory biological signals of a target object. The application also takes portability of the device into consideration and realizes the synchronous triggering and collecting function of multiple biological signals. The device has the characteristics of light weight, small volume, convenient carrying and the like, and integrates the functions of acquiring and resolving various bioelectric signals such as electrocardio, pulse and respiration. In addition, the device also supports synchronous triggering and acquisition of various bioelectric signals, and provides technical support and support for the research and analysis of the bioelectric signals in certain special fields.
In the embodiment of the application, when generating target data for drawing a waveform image according to received waveform data, the size of a filtering window is firstly determined; then inputting the received waveform data into a pre-established filtering window to obtain a plurality of first original data which are equal to the size of the filtering window in the filtering window; secondly, determining and deleting the maximum value and the minimum value in the first original data to obtain second original data; finally, carrying out average value solving processing on a plurality of second original data, and generating target data for drawing a waveform image after all received waveform data are processed; the average calculation formula is as follows:
a= (va+vb+ … +vn-Vmin-Vmax)/(a-2); a is an average value, va, vb and Vn are a plurality of first original data; vmin, vmax are the maximum and minimum values of the plurality of first raw data.
Specifically, when determining and deleting the maximum value and the minimum value in the plurality of first original data, firstly comparing the sizes of the first element and the second element; the first element and the second element are adjacent two elements in the plurality of first original data; then, under the condition that the first element is smaller than the second element, exchanging the positions of the second element and the first element; secondly, when the sizes of any two adjacent elements in the plurality of first original data accord with that of the second element and are larger than the first element, an original data sequence is obtained; taking the first two elements in the original data sequence as a maximum value and a minimum value; and finally deleting the maximum value and the minimum value.
In one possible implementation, for example, as shown in fig. 2 and fig. 3, each sensor is converted into a digital signal by a biological signal after passing through a signal conversion module, taking a single sensor (electrocardiograph) as an example, (1) a filter window size a is selected, which indicates that the number of effective data selected by the filter algorithm is a; (2) taking out A pieces of original data in the window range, finding out the maximum value and the minimum value in the original data by an bubbling sequencing method, and deleting; (3) and (3) carrying out average value calculation on the A-2 data excluding the maximum value and the minimum value, wherein the calculation formula is as follows: (Va+vb+ … +Vn-Vmin-Vmax)/(A-2), which is used as an input to the upper computer for the waveform drawing functional unit; (4) the sliding window shifts backwards, and data in a new window range is selected as filter original data; (5) repeating the operations of sequencing, deleting the maximum value and the minimum value, solving the average value and the like, and calculating to obtain the input which is transmitted to the upper computer for the waveform drawing functional unit.
The data filter algorithm in the application has the following advantages: a. the window with a sliding window is adjustable in window range, the larger the window range is, the smoother the filtering effect is, and the corresponding calculation force requirement on the CPU is higher; b. the characteristic of the de-salience value can effectively filter burrs in the original data, and avoid abrupt change of the electric signal and data deviation caused by boundaries; c. the mean filter has the characteristic of retaining the edge data characteristic and information on the basis of the original denoising function.
In the embodiment of the application, when the target data is sent to an upper computer for display, the target data for drawing the waveform image is firstly converted into unsigned integer data with a plurality of preset bytes; then, the unsigned integer data is encapsulated according to a preset protocol frame format to obtain an encapsulated data packet; and finally, transmitting the encapsulated data packet to an upper computer to draw a waveform image for display.
In the embodiment of the application, the equipment further comprises a power supply, wherein the power supply is used for supplying power to the multi-signal controller main board; the power supply is a detachable battery pack or a chargeable and dischargeable battery module. The system has higher integration level for the multiple biological signal acquisition units, adopts a power supply mode, and meets the power supply requirements of all functional units.
In the embodiment of the application, the signal conversion module is an ADC analog-to-digital converter chip; the ADC chip is used for converting the biological signal into a digital signal.
In the embodiment of the application, when the received multiple biological signals are resolved to obtain the waveform data of each biological signal, firstly, aiming at each biological signal of the received multiple biological signals, under the condition that each biological signal is determined to be positioned in a limit area at a designated sampling time, determining the actual sampling biological signals at other times except the designated sampling time in each biological signal; then determining the digital signal corresponding to each biological signal according to the fixed relation among the actually sampled biological signal, the preset digital signal and the biological signal; and finally, taking the digital signal corresponding to each biological signal as waveform data.
In the embodiment of the application, when each biological signal is determined to be positioned in a limit area at the appointed sampling time, the biological signal is determined to be positioned in the limit area at the appointed sampling time based on the magnitude relation between the actual sampling value of the output biological signal at the appointed sampling time and the actual sampling threshold value.
For example, as shown in fig. 4, fig. 4 is a schematic diagram of a controller motherboard implementation, where a core processing unit on the controller motherboard initiates multiple biological signal synchronous acquisition commands at a time T1; at the same time, the 3 biological signal functional units synchronously start to work, wherein the synchronous starting of the biological signal functional units comprises starting of an electrocardio signal acquisition function, completion of electrocardio signal sampling through a three-lead electrode, starting of a respiratory signal acquisition function, completion of respiratory wave electric signal sampling through a piezoresistive respiration sensor, starting of a pulse signal acquisition function, and completion of pulse electric signal sampling through the piezoresistive pulse sensor; the multi-channel sensor signals are used for calculating electrocardio waveform, respiratory waveform and pulse waveform data through the post-stage AD processor unit.
In the embodiment of the application, the collection and decoding actions of various biological signals are triggered at the same initial time point, each path of waveform has a uniform reference time point, and no time delay exists between waveforms. The portability of the device is ensured while the synchronous acquisition function of various biological signals is realized.
For example, in the code implementation phase, the main task loop may be broken down into 4 parallel subtask state machines: pulse_data_recv_fsm, ecg_data_recv_ Fsm, respiratory _data_recv_ Fsm,4 parallel subtask state machines acquire bilateral Pulse signals, electrocardiographic signals, respiratory wave signals, respectively. And after the signals of all the modules are collected, synchronously completing data analysis, converting the data into 4-byte unsigned shaping data, and filling the 4-byte unsigned shaping data according to the following data frame format. Data frame format: 1 byte of start code, 1 byte of type code, 2 bytes of electrocardio data, 2 bytes of pulse data, 2 bytes of respiratory wave data, 2 bytes of and check, and 1 byte of end code. And the Main task state machine main_Loop_ Fsm takes 100Hz frequency as a driving clock, and transmits the packed protocol frame data to the PC upper computer.
In the portable biological signal synchronous processing device provided by the embodiment of the application, a multi-signal controller main board of the device comprises a dispatching control module, a sensor unit for providing a hot plug interface, a signal conversion module and a data filter; when the scheduling control module receives a signal processing request, generating multiple biological signal synchronous acquisition instructions at a first moment; when the sensor unit receives the instruction, a plurality of biological signals are synchronously collected through a sensor connected with the hot plug interface; the signal conversion module is used for resolving a plurality of biological signals to obtain waveform data of each biological signal; the data filter generates target data for drawing a waveform image from the waveform data. The application adds the multi-signal controller main board in the portable equipment, the main board integrates the sensor unit for providing the hot plug interface, and a plurality of sensors can be inserted into the sensor unit and process a plurality of biological signals at the same time, so that each path of waveform has a unified reference point, thereby reducing the probability of misdiagnosis.
Referring to fig. 5, a flow chart of a portable biological signal synchronization processing method applied to a portable biological signal synchronization processing device is provided in an embodiment of the present application, and the flow chart is applied to the portable biological signal synchronization processing device including a multi-signal controller main board, wherein the multi-signal controller main board includes a scheduling control module, a sensor unit providing a hot plug interface, a signal conversion module and a data filter. As shown in fig. 5, the detection method according to the embodiment of the present application may include the following steps:
s101, generating multiple biological signal synchronous acquisition instructions at a first moment by a scheduling control module when a signal processing request is received, and sending the multiple biological signal synchronous acquisition instructions to a sensor unit;
s102, triggering signal acquisition operation at a second moment when a plurality of biological signal synchronous acquisition instructions are received through a sensor unit, synchronously acquiring a plurality of biological signals of a target object through a sensor connected to a hot plug interface, and sending the biological signals to a signal conversion module; the first moment is earlier than the second moment;
s103, calculating the received multiple biological signals through a signal conversion module to obtain waveform data of each biological signal, and sending the waveform data to a data filter;
and S104, generating target data for drawing the waveform image according to the received waveform data through a data filter, and sending the target data to an upper computer for display.
In the portable biological signal synchronous processing device provided by the embodiment of the application, a multi-signal controller main board of the device comprises a dispatching control module, a sensor unit for providing a hot plug interface, a signal conversion module and a data filter; when the scheduling control module receives a signal processing request, generating multiple biological signal synchronous acquisition instructions at a first moment; when the sensor unit receives the instruction, a plurality of biological signals are synchronously collected through a sensor connected with the hot plug interface; the signal conversion module is used for resolving a plurality of biological signals to obtain waveform data of each biological signal; the data filter generates target data for drawing a waveform image from the waveform data. The application adds a multi-signal controller main board in the portable equipment, the main board integrates a sensor unit for providing a hot plug interface, a plurality of sensors can be inserted into the sensor unit and process a plurality of biological signals at the same time, so that each wave form has a unified reference point, and a plurality of biological signals can be interpreted by each other.
The present application also provides a computer readable medium having stored thereon program instructions which, when executed by a processor, implement the portable bio-signal synchronization processing method provided by the above-described respective method embodiments.
The application also provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform the portable biosignal synchronization processing method of the various method embodiments described above.
Those skilled in the art will appreciate that implementing all or part of the above-described methods in the embodiments may be accomplished by computer programs to instruct related hardware, and the programs for portable biosignal synchronization processing may be stored in a computer readable storage medium, which when executed may include the processes of the embodiments of the methods described above. The storage medium for synchronous processing of the portable biological signals can be a magnetic disk, an optical disk, a read-only memory or a random memory.
The foregoing disclosure is illustrative of the present application and is not to be construed as limiting the scope of the application, which is defined by the appended claims.
Claims (10)
1. A portable biological signal synchronization processing apparatus, the apparatus comprising:
a multi-signal controller motherboard; wherein,,
the multi-signal controller main board comprises a dispatching control module, a sensor unit for providing a hot plug interface, a signal conversion module and a data filter; the dispatching control module, the sensor unit, the signal conversion module and the data filter are electrically connected; wherein,,
the scheduling control module is used for generating multiple biological signal synchronous acquisition instructions at a first moment when receiving a signal processing request and sending the multiple biological signal synchronous acquisition instructions to the sensor unit;
the sensor unit is used for triggering signal acquisition operation at a second moment when receiving a plurality of biological signal synchronous acquisition instructions so as to synchronously acquire a plurality of biological signals for a target object through a sensor connected to the hot plug interface and send the biological signals to the signal conversion module; the first time is earlier than the second time;
the signal conversion module is used for resolving a plurality of received biological signals to obtain waveform data of each biological signal and sending the waveform data to the data filter;
the data filter is used for generating target data for drawing the waveform image according to the received waveform data and sending the target data to the upper computer for display.
2. A portable biological signal synchronous processing device according to claim 1, wherein,
the sensors connected to the hot plug interface comprise an electrocardio sensor, a respiratory wave sensor and a pulse wave sensor; wherein,,
the electrocardio sensor is a three-lead electrode slice and is used for collecting electrocardio biological signals of the target object;
the pulse wave sensor is a pulse signal acquisition flexible sensor and is used for acquiring a pulse biological signal of the target object;
the respiratory wave sensor is a respiratory signal acquisition flexible sensor and is used for acquiring respiratory biological signals of the target object.
3. The portable biosignal synchronization processing device of claim 1, wherein the generating target data for drawing the waveform image from the received waveform data comprises:
determining a filter window size;
inputting the received waveform data into a pre-established filtering window to obtain a plurality of first original data which are equal to the size of the filtering window in the filtering window;
determining and deleting the maximum value and the minimum value in the first original data to obtain second original data;
performing mean value processing on the plurality of second original data, and generating target data for drawing a waveform image after all received waveform data processing is finished; wherein,,
the average calculation formula is as follows:
；/>for average value,/->For a plurality of first raw data +.>For the maximum value and the most of the first raw dataSmall values.
4. A portable biological signal synchronization processing device according to claim 3, wherein said determining and deleting maximum and minimum values of said plurality of first raw data comprises:
comparing the sizes of the first element and the second element; the first element and the second element are adjacent two elements in the plurality of first original data;
exchanging the position of the second element with the first element in the case that the first element is smaller than the second element;
when the sizes of any two adjacent elements in the plurality of first original data accord with that of the second element and are larger than the first element, an original data sequence is obtained;
taking the first two elements in the original data sequence as a maximum value and a minimum value;
deleting the maximum value and the minimum value.
5. The portable biological signal synchronization processing device of claim 1, wherein the device for transmitting to the host computer for display comprises:
converting target data for drawing a waveform image into unsigned integer data of a preset number of bytes;
encapsulating the unsigned integer data according to a preset protocol frame format to obtain an encapsulated data packet;
and transmitting the encapsulated data packet to the upper computer to draw a waveform image for display.
6. The portable biosignal synchronization processing device of claim 1, further comprising a power supply for powering the multi-signal controller motherboard; wherein,,
the power supply is a detachable battery pack or a chargeable and dischargeable battery module.
7. A portable biological signal synchronous processing device according to claim 1, wherein,
the signal conversion module is an ADC (analog-to-digital converter) chip; wherein,,
the ADC chip is used for converting the biological signal into a digital signal.
8. The portable biological signal synchronous processing device according to claim 1, wherein the calculating of the received plurality of biological signals to obtain waveform data of each biological signal comprises:
for each biological signal of the received plurality of biological signals, determining an actual sampled biological signal at a time other than the specified sampling time in each biological signal if it is determined that the each biological signal is located in a limit region at the specified sampling time;
determining digital signals corresponding to each biological signal according to the fixed relation among the actually sampled biological electric signals, the preset digital signals and the biological electric signals;
and taking the digital signal corresponding to each biological signal as waveform data.
9. The portable biological signal synchronization processing device of claim 8, wherein said determining that each of said biological signals is located in a limited area at a specified sampling time comprises:
and determining that each biological signal is positioned in a limit area at the appointed sampling moment based on the magnitude relation between the actual sampling value of the output biological signal at the appointed sampling moment and the actual sampling threshold value.
10. A portable bio-signal synchronization processing method, which is applied to a portable bio-signal synchronization processing device including a multi-signal controller main board, wherein the multi-signal controller main board includes a schedule control module, a sensor unit providing a hot plug interface, a signal conversion module, and a data filter, the method comprising:
generating multiple biological signal synchronous acquisition instructions at a first moment by the scheduling control module when receiving a signal processing request, and sending the multiple biological signal synchronous acquisition instructions to the sensor unit;
triggering signal acquisition operation at a second moment when a plurality of biological signal synchronous acquisition instructions are received through the sensor unit, synchronously acquiring a plurality of biological signals of a target object through a sensor connected to the hot plug interface, and sending the biological signals to the signal conversion module; the first time is earlier than the second time;
the received multiple biological signals are resolved through the signal conversion module, waveform data of each biological signal are obtained, and the waveform data are sent to the data filter;
and generating target data for drawing the waveform image according to the received waveform data through the data filter, and sending the target data to an upper computer for display.
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