Single-person physical sign monitoring belt

Abstract

The utility model discloses a single-person physical sign monitoring belt, which is provided with a piezoresistive sensor, and the piezoresistive sensor is used for detecting the pressure condition of the whole monitoring belt and transmitting pressure data to a main control module; therefore, the main control module can detect the pressure on the monitoring belt according to the value of the pressure data, so that the main controller can control the piezoelectric signal sensor to collect physical sign data only when an object with a certain mass is pressed on the monitoring belt; meanwhile, the system is also provided with an alarm module, and the alarm module can give an alarm in real time under the control of the main control module. Through the above design, the problem of human body error detection in the traditional technology can be reduced, the monitoring authenticity is improved, and on-site and real-time alarm can be carried out without being combined with terminals such as a mobile phone and the like; therefore, the utility model is very suitable for old people to use, and can be applied and popularized on a large scale in the technical field of health monitoring.

Description

Technical Field

[0001] The utility model belongs to the technical field of health monitoring, and in particular relates to a single-person physical sign monitoring belt. Background Art

[0002] At present, the vital sign monitoring belts on the market include various types of sleep monitoring belts and pillows, most of which are used to detect sleep quality and also have heart rate and respiratory value detection. However, the existing products have the following problems: non-human detection is inaccurate, and when foreign objects are pressed on the sensor belt, it will also be identified as a person's state, so as to perform vital sign monitoring. It cannot monitor data such as heart rate and breathing, and the monitoring lacks authenticity; at the same time, most products are used in combination with mobile phone terminals, and the results are viewed using mobile phone terminals. They do not have on-site alarm functions and real-time alarm functions, and therefore are not suitable for the elderly; therefore, based on the aforementioned deficiencies, how to provide a vital sign monitoring belt that can ensure the authenticity of monitoring and has on-site and real-time alarm functions has become a problem that needs to be solved urgently. Utility Model Content

[0003] The utility model aims to provide a single-person body sign monitoring belt, which is used to solve the problem of the prior art that the belt lacks real-time alarm and on-site alarm functions, and the problem of lack of authenticity of monitoring due to false detection of the human body.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] In a first aspect, a single-person vital sign monitoring belt is provided, comprising:

[0006] A human body sign monitoring module, wherein the human body sign monitoring module comprises a piezoelectric signal sensor;

[0007] An out-of-position detection module, wherein the out-of-position detection module comprises a piezoresistive sensor;

[0008] An ADC module, wherein the piezoelectric signal sensor and the piezoresistive sensor are electrically connected to input terminals of the ADC module respectively;

[0009] A main control module and an alarm module, wherein the output end of the ADC module is electrically connected to the input end of the main control module, and the output end of the main control module is electrically connected to the alarm module.

[0010] Based on the above disclosed content, the single-person vital sign monitoring belt provided by the utility model is provided with a piezoresistive sensor, wherein the piezoresistive sensor detects the pressure condition of the entire monitoring belt and transmits the pressure data to the main control module; therefore, the main control module can detect the pressure on the monitoring belt according to the value of the pressure data, so that only when an object of a certain mass (such as set to be greater than 30kg) is pressed on the monitoring belt, the main controller will control the piezoelectric signal sensor to collect vital sign data; at the same time, the utility model is also provided with an alarm module, which can perform real-time alarm under the control of the main control module; thus, through the aforementioned design, the utility model can reduce the problem of human body misdetection in traditional technology, improve the authenticity of monitoring, and can perform on-site and real-time alarm without the need to be combined with terminals such as mobile phones; therefore, the utility model is very suitable for use by the elderly and can be widely used and promoted in the field of health monitoring technology.

[0011] In one possible design, the ADC module includes: an analog-to-digital conversion unit, an operational amplifier unit, an AD control unit, an operational amplifier power supply unit, and a control power supply unit;

[0012] The piezoelectric signal sensor and the piezoresistive sensor are electrically connected to the input end of the operational amplifier unit, respectively, wherein the output end of the operational amplifier unit is electrically connected to the input end of the analog-to-digital conversion unit, the output end of the analog-to-digital conversion unit is electrically connected to the input end of the AD control unit, and the output end of the AD control unit is electrically connected to the input end of the main control module;

[0013] The input end of the operational amplifier power supply unit and the input end of the control power supply unit are electrically connected to the first power supply respectively, wherein the first output end of the operational amplifier power supply unit is electrically connected to the power supply end of the operational amplifier unit, and the output end of the control power supply unit is electrically connected to the power supply end of the analog-to-digital conversion unit and the power supply end of the AD control unit.

[0014] In a possible design, the operational amplifier unit includes: a first operational amplifier, a second operational amplifier, a third operational amplifier and a fourth operational amplifier;

[0015] The inverting input terminal of the first operational amplifier is electrically connected to the piezoelectric signal sensor and the piezoresistive sensor via a first capacitor, and the non-inverting input terminal of the first operational amplifier is electrically connected to a second power supply, wherein the inverting input terminal of the first operational amplifier is also electrically connected to the output terminal of the first operational amplifier and one end of a first resistor, the other end of the first resistor is electrically connected to the second power supply via a second resistor, and the output terminal of the first operational amplifier is electrically connected to the non-inverting input terminal of the second operational amplifier;

[0016] The inverting input terminal and the output terminal of the second operational amplifier are connected to each other, wherein the output terminal of the second operational amplifier is electrically connected to one end of the third resistor, and the other end of the third resistor is electrically connected to the inverting input terminal of the third operational amplifier through the fourth resistor and to the non-inverting input terminal of the third operational amplifier through the second capacitor;

[0017] The other end of the third resistor is also electrically connected to the output end of the third operational amplifier and one end of the sixth resistor through a fifth resistor, wherein the other end of the sixth resistor is electrically connected to the non-inverting input end of the fourth operational amplifier through a third capacitor, and is electrically connected to the inverting input end of the fourth operational amplifier through a seventh resistor, the other end of the sixth resistor is also electrically connected to the inverting input end of the fourth operational amplifier through an eighth resistor, and a fourth capacitor is connected in parallel between the inverting input end and the output end of the fourth operational amplifier;

[0018] The power supply end of the first operational amplifier and the power supply end of the third operational amplifier are electrically connected to the first output end of the operational amplifier power supply unit, wherein the non-inverting input end of the third operational amplifier and the non-inverting input end of the fourth operational amplifier are also electrically connected to the second power supply, and the output end of the fourth operational amplifier is electrically connected to the input end of the analog-to-digital conversion unit.

[0019] In one possible design, the ADC module also includes a power management unit, wherein an input end of the power management unit is electrically connected to a second output end of the operational amplifier power supply unit, and an output end of the power management unit outputs the second power supply.

[0020] In one possible design, the power management unit includes an ADR421ARMZ-REEL7 power management chip, the control power unit includes an LP5907MFX-3.3 / NOPB voltage regulator, the analog-to-digital conversion unit includes an AD7195BCPZ-RL7 analog-to-digital conversion chip, and the AD control unit uses an STM32F401CBU6 control chip.

[0021] In a possible design, the alarm module includes an LED light alarm circuit and a buzzer alarm circuit, wherein the output end of the main control module is electrically connected to the controlled ends of the LED light alarm circuit and the buzzer alarm circuit, respectively.

[0022] In a possible design, it also includes: a communication module, wherein the main control module is communicatively connected to a monitoring terminal via the communication module.

[0023] In a possible design, the communication module adopts a wireless communication module, and the wireless communication module includes a WI FI communication module and / or a Bluetooth communication module.

[0024] In a possible design, the main control module uses an STM32G030F6P6 control chip and its peripheral circuits.

[0025] In a possible design, it also includes: a power supply module, wherein the input end of the power supply module is electrically connected to a third power supply, the output end of the power supply module is electrically connected to the power supply end of the main control module, and the power supply module includes a linear regulator.

[0026] Beneficial effects:

[0027] (1) The utility model can reduce the problem of false human body detection in traditional technologies, improve the authenticity of monitoring, and can provide on-site and real-time alarms without the need for use in conjunction with terminals such as mobile phones. Therefore, the utility model is very suitable for use by the elderly and can be widely applied and promoted in the field of health monitoring technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A structural block diagram of a single-person vital sign monitoring belt provided by an embodiment of the utility model;

[0029] Figure 2 A specific circuit diagram of the main control module provided by the embodiment of the utility model;

[0030] Figure 3 A specific circuit diagram of an operational amplifier unit provided in an embodiment of the utility model;

[0031] Figure 4 A specific circuit diagram of the AD7195BCPZ-RL7 analog-to-digital conversion chip provided by the embodiment of the utility model;

[0032] Figure 5 A specific circuit diagram of an AD control unit provided by an embodiment of the utility model;

[0033] Figure 6 A specific circuit diagram of a control power supply unit provided in an embodiment of the utility model;

[0034] Figure 7 A specific circuit diagram of an operational amplifier power supply unit provided in an embodiment of the utility model;

[0035] Figure 8 A specific circuit diagram of a power management unit provided by an embodiment of the utility model;

[0036] Fig. 9 A specific circuit diagram of the LED light alarm circuit provided by the embodiment of the utility model;

[0037] Fig.10 A specific circuit diagram of a buzzer alarm circuit provided by an embodiment of the utility model;

[0038] Fig.11 A specific circuit diagram of a network status indication circuit provided by an embodiment of the utility model;

[0039] Fig.12 A specific circuit diagram of a communication module provided by an embodiment of the utility model;

[0040] Fig.13 A specific circuit diagram of a power module provided by an embodiment of the utility model;

[0041] Fig.14 A specific circuit diagram of the half-hole interface provided for this embodiment;

[0042] Fig.15 This is a schematic diagram of the connection between the sensor interface and the ADC module provided in this embodiment. DETAILED DESCRIPTION

[0043] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the utility model will be briefly introduced below in combination with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the structure of the drawings is only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. It should be noted that the description of these embodiments is used to help understand the utility model, but does not constitute a limitation of the utility model.

[0044] It should be understood that although the terms first, second, etc. may be used herein to describe various units, these units should not be limited by these terms. These terms are only used to distinguish one unit from another unit. For example, a first unit can be referred to as a second unit, and similarly, a second unit can be referred to as a first unit without departing from the scope of the exemplary embodiments of the present utility model.

[0045] It should be understood that the term "and / or" that may appear in this article is merely a description of the association relationship between associated objects, indicating that three relationships may exist. For example, A and / or B can represent three situations: A exists alone, B exists alone, and A and B exist at the same time. The term " / and" that may appear in this article describes another type of association object relationship, indicating that two relationships may exist. For example, A / and B can represent two situations: A exists alone, and A and B exist alone. In addition, the character " / " that may appear in this article generally indicates that the previous and next associated objects are in an "or" relationship.

[0046] Example:

[0047] See also Figures 1 to 15As shown, the single-person vital signs monitoring belt provided in this embodiment may include but is not limited to a human vital signs monitoring module, an out-of-position detection module, an ADC module, a main control module and an alarm module; wherein, for example, the aforementioned modules may be arranged on a flexible sensor belt, and the flexible sensor belt is provided with a silicone waterproof layer and a fireproof cloth inner layer, which is soft and bendable, easy to install, and does not affect sleeping or sitting posture; in this way, the sensor belt can be installed flat under a bed sheet or a chair cushion, and can be used by powering it with USB5V.

[0048] In this embodiment, for example, the human vital signs monitoring module may include but is not limited to a piezoelectric signal sensor, and the out-of-position detection module may include but is not limited to a piezoresistive sensor; wherein the piezoelectric signal sensor and the piezoresistive sensor are electrically connected to the input end of the ADC module respectively, the output end of the ADC module is electrically connected to the input end of the main control module, and the output end of the main control module is electrically connected to the alarm module; in this way, the ADC module can process the data transmitted by the piezoelectric signal sensor and the piezoresistive sensor, and finally transmit them to the main control module, thereby realizing human vital signs monitoring.

[0049] In specific applications, this embodiment adopts a dual sensor setting, namely a piezoelectric signal sensor for detecting weak vibration signals on the body surface, thereby obtaining the human heart rate and respiratory rate (of course, the piezoelectric signal sensor detects the heart rate and respiratory rate, which can be achieved using existing hardware), and a piezoresistive sensor for detecting the pressure of the entire monitoring belt, and transmitting the detected pressure data to the main control module; in this way, the main control module can derive the pressure value on the monitoring belt based on the pressure data, and only when it detects that the pressure value is greater than a certain value (such as the pressure generated by an object set to be greater than 30 kg), will it control the piezoelectric signal sensor to collect vital sign data; at the same time, when the main control module detects that the heart rate and / or respiratory rate are abnormal (that is, greater than or less than the set value), it will control the alarm module to issue a real-time alarm prompt.

[0050] In this way, the single-person vital sign monitoring belt provided in this embodiment can reduce the problem of false human body detection in traditional technologies, improve the authenticity of monitoring, and can perform on-site and real-time alarms without being used in conjunction with terminals such as mobile phones; therefore, it is suitable for use by different groups of people and is very suitable for large-scale application and promotion.

[0051] In one possible design, the specific circuit structure of each functional module in the aforementioned monitoring band is provided below.

[0052] First, one of the circuit structures of the main control module is given:

[0053] In this embodiment, the main control module can be, but is not limited to, an STM32G030F6P6 control chip and its peripheral circuits. The STM32G030F6P6 control chip has the advantage of low power consumption and a WI FI network configuration reset button, and is very suitable as a control center for monitoring bands. At the same time, the specific circuit diagram of the STM32G030F6P6 control chip can be found in Figure 2 As shown, its circuit structure is not described here in detail.

[0054] Secondly, this embodiment provides one circuit structure of the ADC module:

[0055] In a specific application, the ADC module may include, but is not limited to: an analog-to-digital conversion unit, an operational amplifier unit, an AD control unit, an operational amplifier power supply unit, and a control power supply unit; wherein the specific connection structure of the aforementioned circuit units is:

[0056] The piezoelectric signal sensor and the piezoresistive sensor are electrically connected to the input end of the operational amplifier unit, respectively, wherein the output end of the operational amplifier unit is electrically connected to the input end of the analog-to-digital conversion unit, the output end of the analog-to-digital conversion unit is electrically connected to the input end of the AD control unit, and the output end of the AD control unit is electrically connected to the input end of the main control module; in this way, the signals output by the piezoelectric signal sensor and the piezoresistive sensor are firstly processed by the operational amplifier unit for operational amplification, and then converted into digital signals by the analog-to-digital conversion unit, and finally transmitted to the main control module through the AD control unit.

[0057] At the same time, the input end of the operational amplifier power supply unit and the input end of the control power supply unit are respectively electrically connected to the first power supply (such as 5V power supply), the first output end of the operational amplifier power supply unit (such as outputting 4.5V DC voltage) is electrically connected to the power supply end of the operational amplifier unit, and the output end of the control power supply unit (which provides 3.3V DC voltage) is electrically connected to the power supply end of the analog-to-digital conversion unit and the power supply end of the AD control unit; in this way, the power supply of each circuit unit in the ADC module can be realized through the aforementioned two power supply units, thereby ensuring the normal operation of the module.

[0058] In a specific implementation, one circuit structure of the operational amplifier unit is provided below.

[0059] In this embodiment, the operational amplifier unit may include, but is not limited to, a first operational amplifier U2.1, a second operational amplifier U2.2, a third operational amplifier U2.3 and a fourth operational amplifier U2.4, wherein the models of the above four operational amplifiers may be, but are not limited to, OPA2376AIDR, and the specific connection structure is described in detail below.

[0060] See also Figure 3 As shown, for example, the inverting input terminal of the first operational amplifier U2.1 is electrically connected to the piezoelectric signal sensor and the piezoresistive sensor through the first capacitor C6 (which can be connected through a half-hole interface, see Fig.14 As shown), the non-inverting input terminal of the first operational amplifier U2.1 is electrically connected to the second power supply (a 5V DC power supply), wherein the inverting input terminal of the first operational amplifier U2.1 is also electrically connected to the output terminal of the first operational amplifier U2.1 and one end of the first resistor R28, the other end of the first resistor R28 is electrically connected to the second power supply through the second resistor R31, and the output terminal of the first operational amplifier U2.1 is electrically connected to the non-inverting input terminal of the second operational amplifier U2.1; at the same time, a fifth capacitor C11, a ninth resistor R28 and a tenth resistor R29 are also arranged between the inverting input terminal and the output terminal of the first operational amplifier U2.1, and their connection relationship can be seen in Figure 3 shown.

[0061] Similarly, the inverting input terminal and the output terminal of the second operational amplifier U2.2 are connected to each other. In this embodiment, a resistor and a capacitor are provided between the inverting input terminal and the output terminal of the second operational amplifier U2.2. Figure 3 As shown, for example, the inverting input terminal of the second operational amplifier U2.2 is electrically connected to one end of the sixth capacitor C4, one end of the seventh capacitor C7, one end of the eleventh resistor R20 and one end of the twelfth resistor R19, respectively, wherein the other ends of the sixth capacitor C4, the seventh capacitor C7 and the eleventh resistor R20 are electrically connected to the output terminal of the second operational amplifier U2.2, and the other end of the twelfth resistor R19 is grounded through the eighth capacitor C9; at the same time, the output terminal of the second operational amplifier U2.2 is electrically connected to one end of the third resistor R17, and the other end of the third resistor R17 is electrically connected to the inverting input terminal of the third operational amplifier U2.3 through the fourth resistor R18 and is electrically connected to the non-inverting input terminal of the third operational amplifier U2.3 through the second capacitor C5.

[0062] Optionally, the other end of the third resistor R17 is also electrically connected to the output end of the third operational amplifier U2.3 and one end of the sixth resistor R5 through a fifth resistor R24; of course, in this embodiment, a ninth capacitor C10 is also connected in parallel between the inverting input end and the output end of the third operational amplifier U2.3, and its connection diagram can be seen in Figure 3 shown.

[0063] Furthermore, for example, the other end of the sixth resistor R5 is electrically connected to the non-inverting input terminal of the fourth operational amplifier U2.4 through the third capacitor C3, and is electrically connected to the inverting input terminal of the fourth operational amplifier U2.4 through the seventh resistor R10, wherein the other end of the sixth resistor R5 is also electrically connected to the inverting input terminal of the fourth operational amplifier through the eighth resistor R27, and a fourth capacitor C8 is connected in parallel between the inverting input terminal and the output terminal of the fourth operational amplifier.

[0064] At the same time, in this embodiment, the power supply end of the first operational amplifier U2.1 and the power supply end of the third operational amplifier U2.3 are electrically connected to the first output end of the operational amplifier power supply unit, wherein the non-inverting input end of the third operational amplifier U2.3 and the non-inverting input end of the fourth operational amplifier U2.4 are also electrically connected to the second power supply, and the output end of the fourth operational amplifier U2.4 is electrically connected to the input end of the analog-to-digital conversion unit; in specific implementation, the connection pins of the aforementioned operational amplifier and the analog-to-digital conversion unit can be referred to Figure 3 and Figure 4 At the same time, the entire ADC module can be connected to the aforementioned piezoelectric signal sensor and piezoresistive sensor through the sensor interface, and the connection diagram can be seen in Figure 2 and Fig.15 shown.

[0065] Thus, through the above detailed circuit description of the operational amplifier unit, the amplification processing of the signals transmitted by the two sensors can be realized by four operational amplifiers.

[0066] Furthermore, the ADC module further includes a power management unit, wherein the input end of the power management unit is electrically connected to the second output end of the operational amplifier power unit, and the output end of the power management unit outputs the second power supply; in this embodiment, the power management unit may include, but is not limited to, an ADR421ARMZ-REEL7 power management chip, and the connection diagram between the power management unit and the operational amplifier power unit can be seen in Figure 7 and Figure 8 As shown, its specific structure will not be repeated.

[0067] In a specific application example, the control power supply unit may include, but is not limited to, a LP5907MFX-3.3 / NOPB voltage regulator (the circuit diagram of which can be found in Figure 6 As shown); for example, the analog-to-digital conversion unit includes an AD7195BCPZ-RL7 analog-to-digital conversion chip (the circuit diagram of which can be seen in Figure 4 As shown), and the AD control unit adopts the STM32F401CBU6 control chip; of course, the circuit diagram of the STM32F401CBU6 control chip can be found in Figure 5shown.

[0068] Therefore, through the above detailed description of the ADC module, this embodiment can realize the conversion and processing of analog signals through four operational amplifiers, AD7195BCPZ-RL7 analog-to-digital conversion chip and STM32F401CBU6 control chip.

[0069] Finally, this embodiment discloses one specific structure of the aforementioned alarm module.

[0070] In specific applications, the alarm module may include, but is not limited to, an LED light alarm circuit and a buzzer alarm circuit, wherein the output end of the main control module is electrically connected to the controlled ends of the LED light alarm circuit and the buzzer alarm circuit, respectively, to realize sound and light alarms of human vital signs and out-of-position.

[0071] Optionally, the LED light alarm circuit may include, but is not limited to, a thirteenth resistor R3, a fourteenth resistor R7, a fifteenth resistor R2, a first indicator light LED1, and a second indicator light LED2, wherein, see Fig. 9 As shown, the second indicator LED2 includes two lamps, namely a red lamp and a blue lamp; wherein one end of the red lamp is grounded through a fourteenth resistor R7, one end of the blue lamp is grounded through a thirteenth resistor R3, and the other ends of the two lamps are electrically connected to the main control module (i.e., the connection pins can be seen in FIG. Fig. 9 and Figure 2 Meanwhile, one end of the first indicator LED1 is also grounded through the fifteenth resistor R2, and the other end of the first indicator LED1 is electrically connected to the VCC power supply.

[0072] In this embodiment, different alarm prompts can be made by using the red and blue lamps in states such as constant lighting, slow flashing, fast flashing, and off. Of course, the specific alarm flashing mode can be set according to actual use and is not specifically limited here.

[0073] At the same time, the buzzer alarm circuit includes a transistor Q1 and a buzzer BUZZER1, wherein the connection structure between the two and the main control module can be seen in Fig.10 and Figure 2 As shown, no further description is given here.

[0074] In the specific implementation, for example, the monitoring belt is also provided with a network status indication circuit, which indicates the network connection through the third indicator LED3. The circuit diagram can be seen in Fig.11 shown.

[0075] In this way, based on the aforementioned LED light alarm circuit and buzzer alarm circuit, when the heart rate / respiratory rate / dislocation is abnormal, an audible and visual alarm can be issued to remind the person or the caregiver.

[0076] In addition, in this embodiment, a communication module is also provided, wherein the main control module is connected to a monitoring terminal (such as a mobile phone, a tablet, a computer and other terminals) through the communication module; in this way, remote monitoring and alarm of mobile phones and other terminals can be realized, and data can be uploaded through the communication module; or relevant parameters of the monitoring belt can be set through the APP on the terminal, thereby improving the convenience of use.

[0077] In a specific implementation, the communication module may be, but is not limited to, a wireless communication module, and the wireless communication module includes a WIFI communication module and / or a Bluetooth communication module; in this embodiment, a WIFI and Bluetooth two-in-one communication module is used, such as a WBR2 type wireless communication chip; wherein, the specific circuit diagram of the WBR2 type wireless communication chip can be seen in Fig.12 As shown, the specific structure will not be described in detail.

[0078] Of course, in this embodiment, the main control module is also provided with a corresponding power supply module, that is, a power supply module, wherein the input end of the power supply module is electrically connected to the third power supply ( Fig.13 The VCC in the power module can be an external 5V power supply), the output end of the power module is electrically connected to the power supply end of the main control module, and the power module includes a linear regulator; in specific applications, an XC6206P332MR linear regulator can be used, and its circuit diagram can be seen in Fig.13 As shown; in this way, based on the aforementioned XC6206P332MR linear regulator, which is a step-down regulator, a 3.3V DC voltage can be output to power the main control module.

[0079] Therefore, through the above detailed explanation of the single-person vital signs monitoring belt, the present monitoring belt can realize real-time monitoring of heart rate value, respiratory rate value, body movement status (i.e. whether the pressure on the monitoring belt is greater than the set value), and off-position status (whether the pressure on the monitoring belt is less than the set value), and make corresponding alarm prompts; at the same time, the above data can be transmitted to the terminal; and the monitoring terminal can use the received data for data analysis to obtain corresponding health monitoring results.

[0080] In summary, the utility model has the following beneficial effects:

[0081] (1) It can reduce the problem of false human body detection in traditional technologies, improve the authenticity of monitoring, and can provide on-site and real-time alarms without the need for use in conjunction with terminals such as mobile phones. Therefore, the utility model is very suitable for use by the elderly and can be widely used and promoted in the field of health monitoring technology.

[0082] (2) The sensor is non-contact type and does not need to be worn or specially installed. It can be easily used by simply placing it on a bed or chair and pressing a part of the body against it.

[0083] (3) The detection speed is fast, and it can detect whether the device is in place or out of place within 1 second, and the heart rate and breathing values ​​can be quickly detected within 10 seconds.

[0084] (4) High detection accuracy, superior to products on the market.

[0085] (5) It is easy to install, has fast detection, real-time alarm via app, alarm threshold setting, alarm switch function, multi-person device sharing, linkage alarm, local alarm function, and one-key call function; it is particularly suitable for the health monitoring needs of the elderly in various occasions, and can achieve 24-hour health monitoring when used with a wristband.

[0086] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A single-person vital signs monitoring belt, characterized in that: include: A human body sign monitoring module, wherein the human body sign monitoring module comprises a piezoelectric signal sensor; An out-of-position detection module, wherein the out-of-position detection module comprises a piezoresistive sensor; An ADC module, wherein the piezoelectric signal sensor and the piezoresistive sensor are electrically connected to input terminals of the ADC module respectively; A main control module and an alarm module, wherein the output end of the ADC module is electrically connected to the input end of the main control module, and the output end of the main control module is electrically connected to the alarm module.

2. A single-person vital sign monitoring belt according to claim 1, characterized in that: The ADC module includes: an analog-to-digital conversion unit, an operational amplifier unit, an AD control unit, an operational amplifier power supply unit and a control power supply unit; The piezoelectric signal sensor and the piezoresistive sensor are electrically connected to the input end of the operational amplifier unit, respectively, wherein the output end of the operational amplifier unit is electrically connected to the input end of the analog-to-digital conversion unit, the output end of the analog-to-digital conversion unit is electrically connected to the input end of the AD control unit, and the output end of the AD control unit is electrically connected to the input end of the main control module; The input end of the operational amplifier power supply unit and the input end of the control power supply unit are electrically connected to the first power supply respectively, wherein the first output end of the operational amplifier power supply unit is electrically connected to the power supply end of the operational amplifier unit, and the output end of the control power supply unit is electrically connected to the power supply end of the analog-to-digital conversion unit and the power supply end of the AD control unit.

3. A single-person vital sign monitoring belt according to claim 2, characterized in that: The operational amplifier unit includes: a first operational amplifier, a second operational amplifier, a third operational amplifier and a fourth operational amplifier; The inverting input terminal of the first operational amplifier is electrically connected to the piezoelectric signal sensor and the piezoresistive sensor via a first capacitor (C6), and the non-inverting input terminal of the first operational amplifier is electrically connected to a second power supply, wherein the inverting input terminal of the first operational amplifier is also electrically connected to the output terminal of the first operational amplifier and one end of a first resistor (R28), the other end of the first resistor (R28) is electrically connected to the second power supply via a second resistor (R31), and the output terminal of the first operational amplifier is electrically connected to the non-inverting input terminal of the second operational amplifier; The inverting input terminal and the output terminal of the second operational amplifier are connected to each other, wherein the output terminal of the second operational amplifier is electrically connected to one end of a third resistor (R17), and the other end of the third resistor (R17) is electrically connected to the inverting input terminal of the third operational amplifier through a fourth resistor (R18) and is electrically connected to the non-inverting input terminal of the third operational amplifier through a second capacitor (C5); The other end of the third resistor (R17) is also electrically connected to the output end of the third operational amplifier and one end of the sixth resistor (R5) through a fifth resistor (R24), wherein the other end of the sixth resistor (R5) is electrically connected to the non-inverting input end of the fourth operational amplifier through a third capacitor (C3), and is electrically connected to the inverting input end of the fourth operational amplifier through a seventh resistor (R10), the other end of the sixth resistor (R5) is also electrically connected to the inverting input end of the fourth operational amplifier through an eighth resistor (R27), and a fourth capacitor (C8) is connected in parallel between the inverting input end and the output end of the fourth operational amplifier; The power supply end of the first operational amplifier and the power supply end of the third operational amplifier are electrically connected to the first output end of the operational amplifier power supply unit, wherein the non-inverting input end of the third operational amplifier and the non-inverting input end of the fourth operational amplifier are also electrically connected to the second power supply, and the output end of the fourth operational amplifier is electrically connected to the input end of the analog-to-digital conversion unit.

4. A single-person vital sign monitoring belt according to claim 3, characterized in that: The ADC module further includes a power management unit, wherein an input end of the power management unit is electrically connected to the second output end of the operational amplifier power supply unit, and an output end of the power management unit outputs the second power supply.

5. A single-person vital sign monitoring belt according to claim 4, characterized in that: The power management unit includes an ADR421ARMZ-REEL7 power management chip, the control power unit includes an LP5907MFX-3.3 / NOPB voltage regulator, the analog-to-digital conversion unit includes an AD7195BCPZ-RL7 analog-to-digital conversion chip, and the AD control unit adopts an STM32F401CBU6 control chip.

6. A single-person vital sign monitoring belt according to claim 1, characterized in that: The alarm module comprises an LED light alarm circuit and a buzzer alarm circuit, wherein the output end of the main control module is electrically connected to the controlled ends of the LED light alarm circuit and the buzzer alarm circuit respectively.

7. A single-person vital sign monitoring belt according to claim 1, characterized in that: Also includes: The communication module is connected to the monitoring terminal through the communication module.

8. A single-person vital sign monitoring belt according to claim 7, characterized in that: The communication module adopts a wireless communication module, and the wireless communication module includes a WIFI communication module and / or a Bluetooth communication module.

9. A single-person vital sign monitoring belt according to claim 1, characterized in that: The main control module adopts the STM32G030F6P6 control chip and its peripheral circuits.

10. The single-person vital sign monitoring belt according to claim 1, characterized in that: Also includes: A power supply module, wherein an input end of the power supply module is electrically connected to a third power supply, an output end of the power supply module is electrically connected to a power supply end of the main control module, and the power supply module includes a linear regulator.

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