Non-contact sleep respiration monitoring device based on ARM
By designing a contactless sleep breath monitoring device based on ARM and using a millimeter-wave radar unit for contactless monitoring, the problems of foreign body sense and low accuracy of the contact device are solved, and higher health detection accuracy and user experience are achieved.
Patent Information
- Application Number
- CN202420441838.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-07
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-03-07
AI Technical Summary
The existing contact sleep breathing monitoring device has problems with foreign body sensation and low accuracy, which affects the health monitoring effect.
A contactless sleep breath monitoring device based on ARM is designed, and a millimeter-wave radar unit is electrically connected to the control board, and non-contact monitoring is performed through millimeter-wave signals.
It achieves higher health detection accuracy, reduces the sense of foreign body, improves the user experience, and is not limited by weight and size factors, its health detection function can be better reflected.
Smart Images
Figure CN222693376U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of non-contact vital signs monitoring, in particular to an ARM-based non-contact sleep breathing monitoring device. Background Art
[0002] Vital signs are indicators used to judge the severity and criticality of the patient's condition. The main changes include heart rate, pulse, blood pressure, respiration, pain, blood oxygen, pupil and corneal reflex.
[0003] At present, the most common sleep breathing monitoring devices on the market are contact-type, which have problems of foreign body sensation and low accuracy, and the health monitoring effect is not good. Non-contact devices are not restricted by factors such as weight and size, and can better reflect their health detection functions, improve detection accuracy, and enhance user experience. Utility Model Content
[0004] The purpose of the utility model is to provide a non-contact sleep breathing monitoring device based on ARM to solve the problems raised in the above background technology.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A non-contact sleep breathing monitoring device based on ARM comprises a control board, an SD card and a millimeter wave radar unit, wherein the control board comprises an SD card socket, the SD card is inserted into the SD card socket, and the millimeter wave radar unit is electrically connected to the control board.
[0007] Furthermore, the control board includes a first central processing unit, a first synchronous dynamic random access memory, a second synchronous dynamic random access memory, a flash memory chip, a memory card holder, a first serial communication interface, a buzzer, and a buzzer control chip. The first synchronous dynamic random access memory, the second synchronous dynamic random access memory, the flash memory chip, the memory card holder, the first serial communication interface, and the buzzer control chip are all electrically connected to the first central processing unit, the buzzer is electrically connected to the buzzer control chip, and the control board is connected to the millimeter wave radar unit via a first wire.
[0008] Furthermore, the millimeter-wave radar unit includes a second central processing unit and a second serial communication interface, and the second serial communication interface is electrically connected to the second central processing unit.
[0009] The above technical solution has the following beneficial effects:
[0010] It uses non-contact sleep breathing monitoring, which has the effect of foreign body sensation and low accuracy, but has better health monitoring effect. Since the equipment is not limited by weight and size factors, it can better realize its health monitoring function, improve detection accuracy and enhance user experience. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 This is a schematic diagram of the control panel of the utility model;
[0012] Figure 2 This is a schematic diagram of a millimeter wave radar unit of the utility model;
[0013] Figure 3 This is the schematic diagram of the input power circuit of the control board of the utility model;
[0014] Figure 4 This is a schematic diagram of the power supply circuit of the first central processing unit of the utility model;
[0015] Figure 5 This is the principle diagram of the input power step-down circuit of the control board of the utility model;
[0016] Figure 6 This is the circuit schematic diagram of the synchronous dynamic random access memory of the control board of the utility model;
[0017] Figure 7 This is the circuit schematic diagram of the flash memory chip of the utility model;
[0018] Figure 8 This is the circuit schematic diagram of the buzzer on the control board of the utility model;
[0019] Fig. 9 This is the circuit schematic diagram of the first central processing unit of the utility model;
[0020] Fig.10 This is another circuit schematic diagram of the first central processing unit of the utility model.
[0021] In the figure: 101, first central processing unit; 102, first synchronous dynamic random access memory; 103, second synchronous dynamic random access memory; 104, flash memory chip; 105, memory card socket; 106, first serial communication interface; 107, buzzer; 108, buzzer control chip; 109, second central processing unit; 110, second serial communication interface; 201, power socket; 202, fuse; 203, Schottky diode; 204, switch; 205, LED indicator light; 206, first step-down chip; 207, second step-down chip. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0023] Please refer to Figures 1 to 10 , the ARM-based non-contact sleep breathing monitoring device includes a millimeter wave radar unit, a first wire, and a control board, wherein the millimeter wave radar unit is electrically connected to the control board through the first wire;
[0024] The control board includes a first central processor 101, a first synchronous dynamic random access memory 102, a second synchronous dynamic random access memory 103, a flash memory chip 104, a memory card holder 105, a first serial communication interface 106, a buzzer 107, and a buzzer control chip 108;
[0025] In a specific implementation, the first central processor 101 is connected to the first synchronous dynamic random access memory 102. There are 39 wires connected between the first central processor 101 and the first synchronous dynamic random access memory 102, of which 8 are control lines, 15 are address lines, and 16 are data lines. The line width is 6 mils, and the length of the address line is equal to that of the data line.
[0026] The first CPU 101 and the second SDRAM 103 are connected by 39 wires, of which 8 are control wires, 15 are address wires, and 16 are data wires, all with a wire width of 6 mils, and the lengths of the address wires and the data wires are equal;
[0027] The first CPU 101 and the flash memory chip 104 are connected by 14 wires, of which 6 are control wires and 8 are data wires, the wire widths are all 6 mils, and the data wires are of equal length;
[0028] The first central processor 101 is connected to the memory card holder 105 by 7 wires, 3 of which are control wires and 4 are data wires, all with a wire width of 6 mils, and a memory card is arranged inside;
[0029] The first central processor 101 and the first serial communication interface 106 are connected by two wires, the two wires form a differential pair, and the line width is 6 mils;
[0030] The buzzer 107 and the buzzer control chip 108 are connected by a wire, which is an input signal line with a line width of 6 mils;
[0031] The buzzer control chip 108 is connected to the first central processor 101 by 9 wires, of which 1 is a power line and 8 are control lines;
[0032] The first synchronous dynamic random access memory 102, the second synchronous dynamic random access memory 103 and the flash memory chip 104 are used to store calculation results and temporary data in the process of processing the millimeter wave intermediate frequency signal, and the memory card is used to store the original data, processed data and waveform information of the intermediate frequency signal.
[0033] In the specific implementation, the first central processor 101 is S3C2440; the first synchronous dynamic random access memory 102 and the second synchronous dynamic random access memory 103 are EM63A165TS; the flash memory chip 104 is K9F1G08U0C; the buzzer control chip 108 is WM8976; the second central processor 109 is FM33A025;
[0034] In a specific implementation, the first wire is connected to the first serial communication interface 106, and the end away from the first serial communication interface 106 is connected to the second serial communication interface 110. Figure 2 As shown, located in the millimeter wave radar unit, the first conductor adopts a serial communication line;
[0035] In the specific implementation, the power socket 201 is connected to the fuse 202, the Schottky diode 203 is connected in reverse parallel, the end away from the fuse 202 is connected to the switch 204, and the end away from the switch 204 is connected to the LED indicator 205. The voltage of the second pin of the switch 204 is 5V, and the first buck chip 206 and the second buck chip 207 are connected to the pin. The first buck chip 206 and the second buck chip 207 are the same model AP2406ES5-ADJ, and the voltage after voltage reduction is 3.3V, which respectively supplies power to the first central processor 101 and other chips;
[0036] In a specific implementation, the address lines, data lines, and control signal lines of the first synchronous dynamic random access memory 102 are connected to the first central processor 101, the address lines, data lines, and signal lines of the second synchronous dynamic random access memory 103 are connected to the first central processor 101, the data lines and control signal lines of the flash memory chip 104 are connected to the first central processor 101, a part of the pins of the buzzer control chip 108 are connected to the first central processor 101, and a part of the pins are connected to the buzzer 107. The first central processor 101 includes a clock unit, a data unit, an address unit, and a timer unit, and is connected to the first synchronous dynamic random access memory 102 and other peripherals;
[0037] All components in the present invention are general standard components or components known to those skilled in the art, and their structures and principles are known to those skilled in the art through technical manuals or conventional experimental methods. At the same time, the standard components used in the present application documents can be purchased from the market, and the components in the present application documents can be customized according to the description and the drawings. The specific connection methods of each unit adopt conventional means such as mature data cables in the prior art, and the parts and equipment adopt conventional models in the prior art. The control method of the present invention is automatic control through a controller, and the control logic of the controller can be realized by simple programming by those skilled in the art. The provision of power is also common knowledge in the field, and the present invention is mainly used to monitor vital signs, so the present invention will not explain the control method and circuit connection in detail;
[0038] Working principle: When in use, place the device within 4 meters of the human body, plug in the millimeter-wave radar unit and the control panel, the millimeter-wave radar unit transmits a signal, the signal is received by the millimeter-wave radar unit after reflection, the signal is mixed and calculated by the first central processor, and analyzed in real time. When abnormal vital signs of the human body are found, the buzzer starts working to remind medical staff to observe the situation.
[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A non-contact sleep breathing monitoring device based on ARM, characterized in that: It includes a control board, an SD card and a millimeter wave radar unit, wherein the control board includes an SD card holder, the SD card is inserted into the SD card holder, and the millimeter wave radar unit is electrically connected to the control board; The control board comprises a first central processing unit (101), a first synchronous dynamic random access memory (102), a second synchronous dynamic random access memory (103), a flash memory chip (104), a memory card holder (105), a first serial communication interface (106), a buzzer (107), and a buzzer control chip (108); the first synchronous dynamic random access memory (102), the second synchronous dynamic random access memory (103), the flash memory chip (104), the memory card holder (105), the first serial communication interface (106), and the buzzer control chip (108) are all electrically connected to the first central processing unit (101); the buzzer (107) is electrically connected to the buzzer control chip (108); and the control board is connected to the millimeter wave radar unit via a first wire; The millimeter wave radar unit comprises a second central processor (109) and a second serial communication interface (110), wherein the second serial communication interface (110) is electrically connected to the second central processor (109).