A diabetic foot monitoring system
By combining optical, temperature, and motion information acquisition modules, diabetic foot can be monitored in real time, solving the problems of large trauma and data lag in existing technologies and achieving convenient and high-precision monitoring.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SUZHOU INST OF BIOMEDICAL ENG & TECH CHINESE ACADEMY OF SCI
- Filing Date
- 2023-11-27
- Publication Date
- 2026-07-21
AI Technical Summary
In existing technologies, diabetic foot monitoring methods cause significant trauma to the target population and data acquisition is delayed.
It employs an optical information acquisition module, a temperature information acquisition module, and a motion information acquisition module, and communicates with a signal processing module via a wireless communication module to acquire the blood flow velocity, temperature, and motion information of the target object in real time, thereby achieving real-time monitoring.
It reduces damage to the target object, improves the convenience and accuracy of monitoring, and enables real-time monitoring of diabetic foot.
Smart Images
Figure CN117653054B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of data monitoring technology, and in particular to a diabetic foot monitoring system. Background Technology
[0002] Microcirculation refers to the blood circulation between arterioles and venules; diabetic foot refers to a disease caused by lesions resulting from vascular microcirculation dysfunction and / or impaired blood perfusion in the foot tissues of lower limb animals, and is also a complication of diabetes; in the existing technology, measurement and monitoring methods that require invasiveness into the target object, such as fluorescence, isotopes and tracing, are usually used, which are more invasive to the target object and the data obtained from the target object are delayed. Summary of the Invention
[0003] In view of the above-mentioned problems in the prior art, the purpose of this application is to provide a diabetic foot monitoring system that reduces the damage to the target object caused by diabetic foot monitoring and acquires the target object data in real time, thereby realizing real-time monitoring of diabetic foot.
[0004] To address the aforementioned issues, this application provides a diabetic foot monitoring system, comprising an optical information acquisition module, a temperature information acquisition module, a motion information acquisition module, and a signal processing module; the optical information acquisition module, the temperature information acquisition module, and the motion information acquisition module are all wirelessly connected to the signal processing module.
[0005] An optical information acquisition module is used to emit low-power laser towards a target object, receive laser reflected by the target object, receive laser scattered by the target object, and determine the blood flow velocity information of the target object based on the reflected laser and the scattered laser.
[0006] A temperature information acquisition module is used to acquire the temperature information of the target object;
[0007] A motion information acquisition module is used to acquire motion information of the target object;
[0008] The signal processing module is used to receive the blood flow velocity information, the temperature information, and the motion information from the wireless communication module, and to determine the indicator monitoring results of the target object based on the blood flow velocity information, the temperature information, and the motion information.
[0009] In this embodiment of the application, the optical information acquisition module includes:
[0010] A laser emitting unit is used to emit a low-power laser beam toward the target object;
[0011] A laser receiving unit is used to receive laser light reflected from the target object and laser light scattered by the target object, and to generate an optical current signal based on the reflected laser light and the scattered laser light.
[0012] An impedance transformation unit is used to perform electrical signal conversion based on the optical current signal to obtain an optical voltage signal;
[0013] A laser signal recognition unit is used to identify blood flow information from the voltage signal to obtain the blood flow velocity information.
[0014] In this embodiment of the application, the laser receiving unit includes:
[0015] The first laser receiving unit is used to receive the laser reflected by the target object and the laser scattered by the target object, and to generate a first current signal based on the reflected laser and the scattered laser.
[0016] The second laser receiving unit is used to receive the laser reflected by the target object and the laser scattered by the target object, and to generate a second current signal based on the reflected laser and the scattered laser; the second laser receiving unit and the first laser receiving unit are respectively disposed on both sides of the laser emitting unit.
[0017] In this embodiment of the application, the impedance transformation unit includes:
[0018] The first impedance transformation unit is used to perform electrical signal conversion based on the first current signal to obtain a first voltage signal;
[0019] The second impedance transformation unit is used to perform electrical signal conversion based on the second current signal to obtain the second voltage signal;
[0020] The third impedance transformation unit is used to perform electrical signal conversion based on the first current signal and the second current signal to obtain a third voltage signal;
[0021] The laser signal recognition unit is used to perform voltage signal analysis on the first voltage signal, the second voltage signal and the third voltage signal respectively to obtain the blood flow velocity information.
[0022] In this embodiment, the third impedance transformation unit includes:
[0023] The fourth impedance transformation unit is used to perform electrical signal conversion based on the first current signal to obtain a fourth voltage signal;
[0024] The fifth impedance transformation unit is used to perform electrical signal conversion based on the second current signal to obtain a fifth voltage signal; the impedance transformation parameters of the fifth impedance transformation unit are the same as the impedance parameters of the fourth impedance transformation unit.
[0025] An information fusion unit is used to perform information fusion based on the fourth voltage signal and the fifth voltage signal to obtain the third voltage signal.
[0026] In this embodiment of the application, the temperature information acquisition module includes:
[0027] The temperature acquisition unit is used to determine the temperature and voltage signals based on the changes in a high-precision thermistor.
[0028] A temperature signal recognition unit is used to identify the temperature information from the temperature voltage signal to obtain the temperature information.
[0029] In this embodiment of the application, the motion information acquisition module includes:
[0030] An acceleration information acquisition unit is used to acquire the acceleration information of the target object;
[0031] An angular velocity information acquisition unit is used to acquire the angular velocity information of the target object;
[0032] The motion information integration unit is used to integrate the acceleration information and the angular velocity information to obtain the motion information.
[0033] In this embodiment of the application, the signal processing module includes:
[0034] An information receiving unit is used to receive the blood flow velocity information, the temperature information, and the motion information;
[0035] An information processing unit is used to perform information denoising and feature extraction on the blood flow velocity information, the temperature information, and the motion information to obtain blood flow feature information, temperature feature information, and motion feature information;
[0036] The information analysis unit is used to analyze the monitoring results of the blood flow characteristic information, the temperature characteristic information and the motion characteristic information to obtain the monitoring results of the indicators.
[0037] In this embodiment of the application, the information analysis unit includes:
[0038] The motion denoising unit is used to denoise the motion noise in the blood flow velocity information based on the motion information to obtain the blood flow velocity information in a stationary state.
[0039] In this embodiment of the application, the diabetic foot monitoring system further includes:
[0040] The display module is used to receive and display the indicator monitoring results of the target object.
[0041] Due to the above technical solution, the diabetic foot monitoring system described in this application has the following beneficial effects:
[0042] By setting up optical information acquisition modules, temperature information acquisition modules, and motion information acquisition modules, information about the target object is collected from multiple dimensions. As a result, the signal processing module can monitor the indicators of the target object based on information from multiple dimensions, thereby improving the accuracy of indicator monitoring results.
[0043] By setting the optical information acquisition module to emit and receive low-power lasers, the damage caused by low-power lasers to the target object is reduced. This reduces the damage to the target object during diabetic foot monitoring and enables real-time acquisition of target object data, thereby improving the convenience of diabetic foot monitoring.
[0044] By connecting the optical information acquisition module, temperature information acquisition module, and motion information acquisition module to the signal processing module via a wireless communication module, the ease of setting up the diabetic foot monitoring system is improved, thereby enhancing the convenience of diabetic foot monitoring. Attached Figure Description
[0045] To more clearly illustrate the technical solutions of this application, the accompanying drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.
[0046] Figure 1 This is a schematic diagram of the structure of a diabetic foot monitoring system provided in an embodiment of this application;
[0047] Figure 2 This is a schematic diagram of the optical information acquisition module structure in a diabetic foot monitoring system provided in this application embodiment;
[0048] Figure 3 This is a schematic diagram of the optical information acquisition module structure in a diabetic foot monitoring system provided in this application embodiment;
[0049] Figure 4 This is a schematic diagram of the structure of a diabetic foot monitoring system provided in an embodiment of this application. Detailed Implementation
[0050] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.
[0051] The term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of this application. In the description of this application, it should be understood that the terms "upper," "lower," "left," "right," "top," "bottom," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," etc., are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein.
[0052] Combination Figure 1 This application introduces a diabetic foot monitoring system provided in its embodiments. The device includes an optical information acquisition module, a temperature information acquisition module, a motion information acquisition module, and a signal processing module. The optical information acquisition module, the temperature information acquisition module, and the motion information acquisition module are all connected to the signal processing module via a wireless communication module.
[0053] The optical information acquisition module is used to emit low-power laser light towards the target object, receive the laser light reflected from the target object, receive the laser light scattered by the target object, and determine the blood flow velocity information of the target object based on the reflected and scattered laser light. The target object can refer to a person or a part of a person, such as the left or right foot. The laser light reflected from the target object can be approximated by the laser light reflected from the skin surface of the target object. The laser light scattered by the target object can be approximated by the laser light scattered from inside the blood vessels of the target object. Low-power laser light refers to laser light with an output power of less than 10 milliwatts. Using low-power laser light to scan the target object reduces damage to the target object's body during information acquisition. Blood flow velocity information refers to the movement velocity of red blood cells on the sole of the target object's foot, which characterizes the blood circulation status and microcirculation parameters.
[0054] The temperature information acquisition module is used to acquire the temperature information of the target object; the temperature information refers to the temperature information of the sole of the target object's foot, which represents the blood circulation status of the target object.
[0055] The motion information acquisition module is used to acquire the motion information of the target object; motion information refers to the current motion state of the target object, which includes, but is not limited to, running, standing, and sitting states.
[0056] The signal processing module is used to receive blood flow velocity information, temperature information, and motion information based on the wireless communication module, and to determine the monitoring results of the target object based on the blood flow velocity information, temperature information, and motion information.
[0057] In this embodiment, by setting up an optical information acquisition module, a temperature information acquisition module, and a motion information acquisition module, information about the target object is collected from multiple dimensions. As a result, the signal processing module can monitor the indicators of the target object based on information from multiple dimensions, thereby improving the accuracy of the indicator monitoring results.
[0058] In this embodiment of the application, by setting the optical information acquisition module to emit and receive low-power lasers, the low-power lasers cause less damage to the target object, thereby reducing the damage to the target object caused by diabetic foot monitoring and acquiring target object data in real time, realizing real-time monitoring of diabetic foot, and thus improving the convenience of diabetic foot monitoring.
[0059] In this embodiment, the optical information acquisition module, temperature information acquisition module, and motion information acquisition module are all connected to the signal processing module via a wireless communication module, thereby improving the ease of setting up the diabetic foot monitoring system and thus enhancing the convenience of diabetic foot monitoring.
[0060] In specific embodiments of this application, the wireless communication module may be a Bluetooth module, a wireless module shared via WiFi, or other wireless communication modules.
[0061] In this embodiment of the application, the optical information acquisition module includes:
[0062] The laser emitting unit is used to emit low-power laser light to the target object.
[0063] The laser receiving unit is used to receive the laser reflected from the target object and the laser scattered by the target object, and to generate an optical current signal based on the reflected laser and the scattered laser. Specifically, the laser receiving unit can generate an optical current signal based on laser parameters such as the illuminance of the reflected laser, the illuminance of the scattered laser, the power density of the reflected laser, and the power density of the scattered laser.
[0064] Impedance transformation unit is used to convert optical current signals into electrical signals to obtain optical voltage signals; electrical signal conversion refers to the process of converting current into voltage signals.
[0065] The laser signal recognition unit is used to identify blood flow information from the voltage signal to obtain blood flow velocity information. Blood flow velocity information recognition refers to analyzing and identifying blood flow velocity information based on the feature information in the voltage signal. Specifically, blood flow information recognition includes: performing a Fourier transform on the time-domain information of the voltage signal to obtain the corresponding frequency-domain information; determining the power spectrum of the voltage signal based on the corresponding frequency-domain information; determining the corresponding Doppler frequency shift based on the power spectrum of the voltage signal; and determining the blood flow velocity information corresponding to the voltage signal based on the preset correspondence between the Doppler frequency shift and blood flow velocity information, and the corresponding Doppler frequency shift of the voltage signal.
[0066] In a specific embodiment of this application, the blood flow velocity information is between 0.1 and 4 mm / s.
[0067] In a specific embodiment of this application, the laser signal recognition unit is also used to identify microcirculation parameters based on the Doppler frequency shift corresponding to the voltage signal, and obtain at least one microcirculation parameter; the microcirculation parameters include endothelial rhythm parameters, neurogenic rhythm parameters, myogenic rhythm parameters, respiratory rhythm parameters, pulse rhythm parameters, etc.
[0068] In this embodiment, by setting an impedance transformation unit, complex electrical signals are converted into voltage signals, which facilitates subsequent blood flow information recognition, thereby reducing the difficulty of blood flow velocity information recognition and improving the accuracy of blood flow velocity information acquisition, thus improving the accuracy and real-time performance of diabetic foot monitoring.
[0069] In the embodiments of this application, the laser emitting unit can be a laser diode or a vertical cavity surface emitting laser (VCSEL); the laser receiving unit can be a photodiode or a phototransistor.
[0070] In this embodiment of the application, the laser receiving unit includes:
[0071] The first laser receiving unit is used to receive the laser reflected by the target object and the laser scattered by the target object, and to generate a first current signal based on the reflected laser and the scattered laser.
[0072] The second laser receiving unit is used to receive the laser reflected from the target object and the laser scattered by the target object, and to generate a second current signal based on the reflected and scattered laser. The second laser receiving unit and the first laser receiving unit are respectively disposed on both sides of the laser emitting unit. Specifically, the first laser receiving unit and the second laser receiving unit are disposed along the blood flow direction, that is, the laser direction received by the first laser receiving unit or the second laser receiving unit is the same as the blood flow direction, and the laser direction received by the second laser receiving unit or the first laser receiving unit is opposite to the blood flow direction, thereby generating different first current signals and second current signals.
[0073] In this embodiment, a first laser receiving unit and a second laser receiving unit are respectively set on both sides of the laser emitting unit. The first laser unit and the second laser unit generate a first optical current signal and a second optical current signal, respectively. Specifically, since the direction of laser reflection and scattering is the same as or opposite to the direction of blood flow velocity, there is a difference between the first optical current signal and the second optical current signal. That is, by acquiring optical current signals in multiple dimensions, the information dimension of the acquired information is improved, thereby improving the recognition accuracy of blood flow velocity information and the monitoring accuracy of indicator monitoring results.
[0074] In another specific embodiment of this application, the laser receiving unit may further include multiple laser receiving units, which are evenly distributed around the laser emitting unit.
[0075] refer to Figure 2 In this embodiment of the application, the impedance transformation unit includes:
[0076] The first impedance transformation unit is used to perform electrical signal conversion based on the first optical current signal to obtain the first voltage signal.
[0077] The second impedance transformation unit is used to perform electrical signal conversion based on the second optical current signal to obtain the second voltage signal.
[0078] The third impedance transformation unit is used to perform electrical signal conversion based on the first optical current signal and the second optical current signal to obtain the third voltage signal; the impedance transformation parameters of the second impedance transformation unit are the same as those of the first impedance transformation unit.
[0079] The laser signal recognition unit is used to analyze the first voltage signal, the second voltage signal and the third voltage signal respectively to obtain blood flow velocity information.
[0080] In this embodiment, the first optical current signal, the second optical current signal, and the fusion signal of the first optical current signal and the second optical current signal are photoelectrically converted into three different voltage signals, thereby improving the information dimension in the blood flow information recognition process, thereby improving the acquisition accuracy of blood flow velocity information, and thereby improving the monitoring accuracy of the indicator monitoring results.
[0081] refer to Figure 3 In a specific embodiment of this application, the first impedance transformation unit is impedance transformation circuit 1, the second impedance transformation unit is impedance transformation circuit 2, the fourth impedance transformation unit is impedance transformation circuit 3, and the fifth impedance transformation unit is impedance transformation circuit 4, wherein the design parameters of impedance transformation circuit 1 and impedance transformation circuit 2 are the same; the transformation circuits of impedance transformation circuit 3 and impedance transformation circuit 4 are the same.
[0082] In another embodiment of this application, impedance transformation circuit 1 and impedance transformation circuit 3 can be combined into one impedance transformation circuit, and impedance transformation circuit 2 and impedance transformation circuit 4 can be combined into one impedance transformation circuit, thereby reducing the structural complexity of the impedance transformation unit.
[0083] In this embodiment of the application, the impedance transformation unit further includes a signal amplification unit, which is used to amplify the first optical current signal, the second optical current signal and the third optical current signal to obtain the amplified first optical current signal, the amplified second optical current signal and the amplified third optical current signal.
[0084] In a specific embodiment of this application, the laser signal recognition unit may be a high-precision digital-to-analog converter.
[0085] In this embodiment, the third impedance transformation unit includes:
[0086] The fourth impedance transformation unit is used to perform electrical signal conversion based on the first current signal to obtain the fourth voltage signal;
[0087] The fifth impedance transformation unit is used to perform electrical signal conversion based on the second current signal to obtain the fifth voltage signal; the impedance transformation parameters of the fifth impedance transformation unit are the same as those of the fourth impedance transformation unit.
[0088] The information fusion unit is used to fuse information based on the fourth voltage signal and the fifth voltage signal to obtain the third voltage signal. The information fusion process can be information superposition, information subtraction, or other information fusion methods, which are not limited here.
[0089] In this embodiment, the third voltage signal is obtained by fusing the fourth voltage signal and the fifth voltage signal, thereby increasing the information dimension in the blood flow information identification process, improving the acquisition accuracy of blood flow velocity information, and thus improving the monitoring accuracy of the indicator monitoring results.
[0090] In a specific embodiment of this application, the impedance transformation parameters of the fourth impedance transformation unit are inconsistent with the impedance transformation parameters of the first impedance transformation unit.
[0091] In a specific embodiment of this application, the laser signal recognition unit includes:
[0092] The first analysis unit is used to perform voltage signal analysis based on the first voltage signal and the second voltage signal to obtain a first analysis result; the first analysis result is obtained based on the time-domain transformation analysis of the voltage signal after the first voltage signal and the second voltage signal are fused.
[0093] The second analysis unit is used to perform voltage signal analysis on the third voltage signal to obtain a second analysis result; the second analysis result is obtained based on the frequency domain analysis of the third voltage signal.
[0094] The analysis and integration unit is used to fuse the first analysis result and the second analysis result to obtain blood flow velocity information.
[0095] In this embodiment of the application, by performing voltage analysis on the third voltage signal based on the first voltage signal and the second voltage signal respectively, the dimensionality of blood flow velocity information analysis is improved. The first analysis result and the second analysis result can be mutually verified, thereby improving the acquisition accuracy of blood flow velocity information and thus improving the monitoring accuracy of the indicator monitoring results.
[0096] In this embodiment of the application, the temperature information acquisition module includes:
[0097] The temperature acquisition unit is used to determine the temperature and voltage signals based on the changes in a high-precision thermistor; the high-precision thermistor is a thermistor device with high accuracy and stability.
[0098] The temperature signal recognition unit is used to identify temperature information from the temperature voltage signal to obtain temperature information; temperature information recognition refers to the analysis and identification of temperature information based on the feature information in the voltage signal.
[0099] In this embodiment, a high-precision thermistor is used to collect temperature and voltage signals, thereby improving the accuracy of temperature and voltage information acquisition, and consequently improving the accuracy of temperature information acquisition and the accuracy of indicator monitoring results.
[0100] In a specific embodiment of this application, the temperature signal identification unit may be a high-precision digital-to-analog converter.
[0101] In this embodiment of the application, the motion information acquisition module includes:
[0102] An acceleration information acquisition unit is used to acquire acceleration information of the target object;
[0103] An angular velocity information acquisition unit is used to acquire the angular velocity information of the target object;
[0104] The motion information integration unit is used to integrate information based on acceleration and angular velocity information to obtain motion information.
[0105] In this embodiment of the application, by setting a motion information acquisition module, the signal processing module can monitor the indicators of the target object based on information from multiple dimensions, thereby improving the accuracy of the indicator monitoring results.
[0106] In a specific embodiment of this application, the pressure signal identification unit may be a high-precision digital-to-analog converter.
[0107] In specific embodiments of this application, the follower unit can be a three-axis follower unit, a six-axis follower unit, or a twelve-axis follower unit; wherein a three-axis follower unit means that the follower unit can move in three directions, for example, it can move in the positive x-axis, positive y-axis, and positive z-axis directions; the concepts of six-axis follower units and twelve-axis follower units are similar to those of three-axis follower units, and will not be described in detail here.
[0108] In this embodiment of the application, the signal processing module includes:
[0109] The information receiving unit is used to receive blood flow velocity information, temperature information, and motion information.
[0110] The information processing unit is used to perform information denoising and feature extraction on blood flow velocity information, temperature information and motion information to obtain blood flow feature information, temperature feature information and motion feature information; information denoising refers to filtering out the weaker stages in the information acquisition process, such as information in the initial stage of information acquisition, information in the end stage of information acquisition and noise information in the signal acquisition process.
[0111] The information analysis unit is used to analyze the monitoring results of blood flow characteristics, temperature characteristics, and motion characteristics to obtain the indicator monitoring results.
[0112] In this embodiment, by denoising the blood flow velocity, temperature, and motion information, the influence of potentially weak data on the monitoring results is avoided, thereby improving the monitoring accuracy of the indicators. By extracting features from the blood flow velocity, temperature, and motion information, the information complexity in the monitoring result analysis process is reduced, thereby improving the analysis rate of the indicators and the real-time performance of diabetic foot monitoring.
[0113] In specific embodiments of this application, the information processing unit can perform other processing on blood flow velocity information, temperature information, and motion information, such as converting time-domain signals into frequency signals, signal filtering, baseline removal, and wavelet analysis.
[0114] In this embodiment of the application, the information analysis unit includes:
[0115] The motion denoising unit is used to denoise the motion noise in the blood flow velocity information based on the motion information to obtain the blood flow velocity information in a stationary state.
[0116] In a specific embodiment of this application, during the real-time monitoring of the diabetic foot of the target object, the blood flow velocity information changes with the movement of the target object. If the blood flow velocity is analyzed during the movement, it will lead to a complex analysis process. Therefore, by collecting motion information and denoising the motion noise in the blood flow velocity, the blood flow velocity information in the static state is obtained, which reduces the analysis difficulty of the signal analysis unit in the signal analysis process, thereby improving the analysis rate of the signal analysis results and improving the real-time performance of diabetic foot monitoring.
[0117] In this embodiment of the application, the diabetic foot monitoring system further includes:
[0118] The display module is used to receive and display the indicator monitoring results of the target object.
[0119] In this embodiment of the application, a display module is set up to display the indicator monitoring results, thereby improving the convenience of indicator monitoring.
[0120] In specific embodiments of this application, the display module can be at least one terminal device equipped with a display screen, such as a computer terminal device, a mobile phone terminal device, or a tablet terminal device; it can also be a lower-level machine module such as a serial port screen or an LED screen.
[0121] In a specific embodiment of this application, the display module adopts a serial port screen display. Through a simple interface design, the display of indicator monitoring results is completed, reducing the need to write upper computer display systems such as terminal devices.
[0122] In a specific embodiment of this application, the diabetic foot monitoring system may further include an alert module, which is used to issue an alert when the monitoring results indicate that the target object has diabetic foot.
[0123] In another specific embodiment of this application, the warning module is also used to issue a warning when any of the blood flow velocity information, temperature information or motion information in the indicator monitoring results is abnormal; the abnormal result may be that the information parameter in the blood flow velocity information, temperature information or motion information exceeds a preset parameter threshold.
[0124] refer to Figure 4 In a specific embodiment of this application, the diabetic foot monitoring system may include a data acquisition slave and an analysis master. Obviously, the data acquisition slave may include an optical information acquisition module, a temperature information acquisition module, and a motion information acquisition module, and the analysis master includes a signal processing module; wherein, the wireless communication module includes a first wireless unit and a second wireless unit, which are respectively located in the data acquisition slave and the analysis master.
[0125] In a specific embodiment of this application, the data acquisition slave is a data acquisition device composed of multiple sensors; the analysis host can be a terminal device such as a computer terminal or a mobile terminal; and the signal processing module can be a specific signal processing program and / or software.
[0126] In a specific embodiment of this application, both the data acquisition slave and the analysis host include their own power supplies. The power supply in the data acquisition slave is a lithium battery. Specifically, the laser emission unit adopts a constant current source drive mode with lithium battery design, while other units adopt a constant voltage source drive mode with lithium battery settings, such as LDO or DC-DC.
[0127] The diabetic foot monitoring system in this application embodiment has the following beneficial effects:
[0128] By setting up optical information acquisition modules, temperature information acquisition modules, and motion information acquisition modules, information about the target object is collected from multiple dimensions. As a result, the signal processing module can monitor the indicators of the target object based on information from multiple dimensions, thereby improving the accuracy of indicator monitoring results.
[0129] By setting the optical information acquisition module to emit and receive low-power lasers, the damage caused by low-power lasers to the target object is reduced. This reduces the damage to the target object during diabetic foot monitoring and enables real-time acquisition of target object data, thereby improving the convenience of diabetic foot monitoring.
[0130] By connecting the optical information acquisition module, temperature information acquisition module, and motion information acquisition module to the signal processing module via a wireless communication module, the ease of setting up the diabetic foot monitoring system is improved, thereby enhancing the convenience of diabetic foot monitoring.
[0131] The foregoing description has fully disclosed the specific embodiments of this application. It should be noted that any modifications made by those skilled in the art to the specific embodiments of this application do not depart from the scope of the claims. Accordingly, the scope of the claims of this application is not limited to the foregoing specific embodiments.
Claims
1. A diabetic foot monitoring system, characterized in that, It includes an optical information acquisition module, a temperature information acquisition module, a motion information acquisition module, and a signal processing module; the optical information acquisition module, the temperature information acquisition module, and the motion information acquisition module are all connected to the signal processing module via a wireless communication module; An optical information acquisition module is used to emit low-power laser towards a target object, receive laser reflected by the target object, receive laser scattered by the target object, and determine the blood flow velocity information of the target object based on the reflected laser and the scattered laser. A temperature information acquisition module is used to acquire the temperature information of the target object; A motion information acquisition module is used to acquire motion information of the target object; The signal processing module is used to receive the blood flow velocity information, the temperature information, and the motion information based on the wireless communication module, and to determine the indicator monitoring results of the target object based on the blood flow velocity information, the temperature information, and the motion information. The optical information acquisition module includes: A laser emitting unit is used to emit a low-power laser beam toward the target object; A laser receiving unit is used to receive laser light reflected from the target object and laser light scattered by the target object, and to generate an optical current signal based on the reflected laser light and the scattered laser light. An impedance transformation unit is used to perform electrical signal conversion based on the optical current signal to obtain an optical voltage signal; A laser signal recognition unit is used to identify blood flow information from the optical voltage signal to obtain the blood flow velocity information. The laser receiving unit includes: The first laser receiving unit is used to receive the laser reflected by the target object and the laser scattered by the target object, and to generate a first current signal based on the reflected laser and the scattered laser. The second laser receiving unit is used to receive the laser reflected by the target object and the laser scattered by the target object, and to generate a second current signal based on the reflected laser and the scattered laser; the second laser receiving unit and the first laser receiving unit are respectively disposed on both sides of the laser emitting unit; The impedance transformation unit includes: The first impedance transformation unit is used to perform electrical signal conversion based on the first current signal to obtain a first voltage signal; The second impedance transformation unit is used to perform electrical signal conversion based on the second current signal to obtain a second voltage signal; the impedance transformation parameters of the second impedance transformation unit are the same as those of the first impedance transformation unit. The third impedance transformation unit is used to perform electrical signal conversion based on the first current signal and the second current signal to obtain a third voltage signal; The laser signal recognition unit is used to perform voltage signal analysis on the first voltage signal, the second voltage signal and the third voltage signal respectively to obtain the blood flow velocity information; The third impedance transformation unit includes: The fourth impedance transformation unit is used to perform electrical signal conversion based on the first current signal to obtain a fourth voltage signal; The fifth impedance transformation unit is used to perform electrical signal conversion based on the second current signal to obtain a fifth voltage signal; the impedance transformation parameters of the fifth impedance transformation unit are the same as the impedance parameters of the fourth impedance transformation unit. An information fusion unit is used to perform information fusion based on the fourth voltage signal and the fifth voltage signal to obtain the third voltage signal.
2. The diabetic foot monitoring system according to claim 1, characterized in that, The temperature information acquisition module includes: The temperature acquisition unit is used to determine the temperature and voltage signals based on the changes in a high-precision thermistor. A temperature signal recognition unit is used to identify the temperature information from the temperature voltage signal to obtain the temperature information.
3. The diabetic foot monitoring system according to claim 1, characterized in that, The motion information acquisition module includes: An acceleration information acquisition unit is used to acquire the acceleration information of the target object; An angular velocity information acquisition unit is used to acquire the angular velocity information of the target object; The motion information integration unit is used to integrate the acceleration information and the angular velocity information to obtain the motion information.
4. The diabetic foot monitoring system according to claim 1, characterized in that, The signal processing module includes: An information receiving unit is used to receive the blood flow velocity information, the temperature information, and the motion information; An information processing unit is used to perform information denoising and feature extraction on the blood flow velocity information, the temperature information, and the motion information to obtain blood flow feature information, temperature feature information, and motion feature information; The information analysis unit is used to analyze the monitoring results of the blood flow characteristic information, the temperature characteristic information and the motion characteristic information to obtain the monitoring results of the indicators.
5. A diabetic foot monitoring system according to claim 4, characterized in that, The information analysis unit includes: The motion denoising unit is used to denoise the motion noise in the blood flow velocity information based on the motion information to obtain the blood flow velocity information in a stationary state.
6. The diabetic foot monitoring system according to claim 1, characterized in that, Also includes: The display module is used to receive and display the indicator monitoring results of the target object.