阅读说明：本技术 床垫式多参数记录系统 (Mattress type multi-parameter recording system ) 是由 刘毅 张其飞 邓韩彬 曾东 蒙俊甫 夏林 于 2021-06-23 设计创作，主要内容包括：本发明公开了床垫式多参数记录系统,包括控制盒、压阻薄膜传感器、压电压阻复合薄膜传感器、床垫体和布套；所述压阻薄膜传感器和压电压阻复合薄膜传感器均设置在床垫体上,通过信号线连接控制盒,所述控制盒设置在床垫体的床头角落处,所述布套用于将床垫体、压阻薄膜传感器、压电压阻复合薄膜传感器和控制盒封装成一体。本发明集成了压电薄膜传感器和压阻薄膜传感器优点,并采用特殊的形状以及科学的布局方式,全床分区域布置,使测量的灵敏度和准确性得到极大的提升,不仅可分析人体在床的姿势及在/离床状态,还可以测量人体的心率、呼吸率等生命体征。(The invention discloses a mattress type multi-parameter recording system, which comprises a control box, a piezoresistive film sensor, a piezoelectric piezoresistive composite film sensor, a mattress body and a cloth cover, wherein the control box is connected with the piezoresistive film sensor; the piezoresistive film sensor and the piezoelectric piezoresistive composite film sensor are both arranged on the mattress body and are connected with the control box through signal lines, the control box is arranged at the corner of the bed head of the mattress body, and the cloth cover is used for packaging the mattress body, the piezoresistive film sensor, the piezoelectric piezoresistive composite film sensor and the control box into a whole. The invention integrates the advantages of the piezoelectric film sensor and the piezoresistive film sensor, adopts special shapes and scientific layout modes, and is arranged in regions of the whole bed, so that the sensitivity and the accuracy of measurement are greatly improved, the posture and the on/off-bed state of a human body in the bed can be analyzed, and the vital signs of the human body such as the heart rate, the breathing rate and the like can be measured.)

1. The mattress type multi-parameter recording system is characterized by comprising a control box (1), a piezoresistive film sensor (3), a piezoelectric piezoresistive composite film sensor (4), a mattress body (2) and a cloth cover; the piezoresistive film sensor (3) and the piezoelectric piezoresistive composite film sensor (4) are arranged on the mattress body (2) and are connected with the control box (1) through signal lines, the control box (1) is arranged at the corner of the bed head of the mattress body (2), and the cloth cover is used for packaging the mattress body (2), the piezoresistive film sensor (3), the piezoelectric piezoresistive composite film sensor (4) and the control box (1) into a whole.

2. A mattress-type multiparameter recording system according to claim 1, wherein the mattress body (2) is provided with sewing threads for isolating the sensors; a signal line channel is arranged in the mattress body (2); the corner of the mattress body (2) is provided with a control box (1) mounting groove.

3. The mattress-type multi-parameter recording system according to claim 1, wherein an STM32 single chip microcomputer 1, an STM32 single chip microcomputer 2, an A/D conversion circuit and a USR-C322 WIFI module are integrated in the control box (1); the A/D conversion circuit is connected with the STM32 singlechip 1 and the piezoelectric piezoresistive composite film sensor (4) and is used for acquiring an electric signal of the piezoelectric piezoresistive composite film sensor (4), converting the electric signal into a digital signal and sending the digital signal to the STM32 singlechip 1 for processing; and the STM32 single chip microcomputer 2 is respectively connected with the STM32 single chip microcomputer 1 and the USR-C322 WIFI module.

4. A mattress-type multiparameter recording system according to claim 1, wherein a piezoelectric piezoresistive composite film sensor (4) and piezoresistive film sensors (3) are provided on the mattress body (2); the piezoelectric piezoresistive composite film sensor (4) and the piezoresistive film sensor (3) are both rectangular, and the long sides of the piezoelectric piezoresistive composite film sensor are smaller than the short sides of the mattress and are distributed in parallel with the short sides of the mattress; the piezoelectric piezoresistive composite film sensor (4) is arranged at a position close to the bed head.

5. The bedding-based multiparameter recording system of claim 1, further comprising a power supply unit comprising a power adapter, a dc converter, a voltage regulator, and a linear voltage regulator; the power adapter provides power, and current passes through the direct current converter, the voltage stabilizer and the linear voltage stabilizer in sequence and then is transmitted to the piezoresistive film sensor (3), the piezoelectric piezoresistive composite film sensor (4) and the control box (1).

Technical Field

The invention relates to the field of mattresses, in particular to a mattress type multi-parameter recording system.

Background

With the continuous development of information technology, the intelligent field is gradually applied to various industries, and with the improvement of living standard of people, the attention degree of people to the health is higher and higher, so that the number of patients in a medical system in China is too large, the number of medical staff is in a shortage state all the year round, the patients cannot be well managed, for some patients with less serious illness state, the real-time supervision cannot be realized, the patients can only search the medical staff through a ring call if necessary, the medical staff cannot supervise the patients in real time, especially, when the patients are supervised at night, the number of people at night is small, so that the patients cannot be effectively monitored and cared in real time, if accidents happen, doctors cannot timely obtain the body data of the patients, and the illness state can be delayed, the patient cannot be timely treated, and irreparable consequences are caused. In the prior art, the piezoelectric film sensor is mainly used for collecting human body vital sign information, the integrated piezoelectric film sensor is used for collecting the pressure distribution condition of a human body on a hospital bed to analyze the posture of a patient on the hospital bed, and a relevant posture model is established to analyze the posture of the human body on the hospital bed; the defects are mainly shown in that misjudgment may be caused in certain specific postures, and in an environment with large vibration interference, heart rate and respiration rate information acquired by the piezoelectric film sensor may be greatly interfered, which may cause inaccuracy in measurement.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a mattress type multi-parameter recording system.

The purpose of the invention is realized by the following technical scheme:

the mattress type multi-parameter recording system comprises a control box, a piezoresistive film sensor, a piezoelectric piezoresistive composite film sensor, a mattress body and a cloth cover; the piezoresistive film sensor and the piezoelectric piezoresistive composite film sensor are both arranged on the mattress body and are connected with the control box through signal lines, the control box is arranged at the corner of the bed head of the mattress body, and the cloth cover is used for packaging the mattress body, the piezoresistive film sensor, the piezoelectric piezoresistive composite film sensor and the control box into a whole.

Furthermore, sewing threads are arranged on the mattress body and used for isolating the sensors; a signal line channel is arranged in the mattress body; the mattress body corner is equipped with the control box mounting groove.

Further, an STM32 single chip microcomputer 1, an STM32 single chip microcomputer 2, an A/D conversion circuit and a USR-C322 WIFI module are integrated in the control box; the A/D conversion circuit is connected with the STM32 singlechip 1 and the piezoelectric piezoresistive composite film sensor and is used for acquiring an electric signal of the piezoelectric piezoresistive composite film sensor, converting the electric signal into a digital signal and sending the digital signal to the STM32 singlechip 1 for processing; and the STM32 single chip microcomputer 2 is respectively connected with the STM32 single chip microcomputer 1 and the USR-C322 WIFI module.

Furthermore, the mattress body is provided with a piezoelectric piezoresistive composite film sensor and a plurality of piezoresistive film sensors; the piezoelectric piezoresistive composite film sensor and the piezoresistive film sensor are both rectangular, and the long sides of the piezoelectric piezoresistive composite film sensor and the piezoresistive film sensor are smaller than the short sides of the mattress and are distributed in parallel with the short sides of the mattress; the piezoelectric piezoresistive composite film sensor is arranged at a position close to the bed head.

The power supply unit comprises a power adapter, a direct current converter, a voltage stabilizer and a linear voltage stabilizer; the power adapter provides power, and current passes through the direct current converter, the voltage stabilizer and the linear voltage stabilizer in sequence and then is transmitted to the piezoresistive film sensor, the piezoelectric piezoresistive composite film sensor and the control box.

The invention has the beneficial effects that: the invention integrates the advantages of the piezoelectric film sensor and the piezoresistive film sensor, adopts special shapes and scientific layout modes, and is arranged in regions of the whole bed, so that the sensitivity and the accuracy of measurement are greatly improved, the posture and the on/off-bed state of a human body in the bed can be analyzed, and the vital signs of the human body such as the heart rate, the breathing rate and the like can be measured.

Drawings

FIG. 1 is a block diagram of the system architecture of the present invention.

Fig. 2 is a diagram showing an internal integrated unit of the control box.

Description of the drawings: 1-a control box; 2-mattress body; 3-piezoresistive thin film sensors; 4-piezoelectric piezoresistive composite film sensor.

Detailed Description

In order to more clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings.

In this embodiment, as shown in fig. 1 and 2, the mattress type multi-parameter recording system includes a control box 1, a piezoresistive film sensor 3, a piezoelectric piezoresistive composite film sensor 4, a mattress body 2, and a cloth cover; the piezoresistive film sensor 3 and the piezoelectric piezoresistive composite film sensor 4 are both arranged on the mattress body 2 and are connected with the control box 1 through signal lines, the control box 1 is arranged at the corner of the bed head of the mattress body 2, and the cloth cover is used for packaging the mattress body 2, the piezoresistive film sensor 3, the piezoelectric piezoresistive composite film sensor 4 and the control box 1 into a whole.

Wherein, the mattress body 2 is provided with sewing threads for isolating each sensor; a signal line channel is arranged in the mattress body 2; the corner of the mattress body 2 is provided with a mounting groove of the control box 1.

An STM32 single chip microcomputer 1, an STM32 single chip microcomputer 2, an A/D conversion circuit and a USR-C322 WIFI module are integrated in the control box 1; the A/D conversion circuit is connected with the STM32 singlechip 1 and the piezoelectric piezoresistive composite film sensor 4 and is used for finishing the collection and processing of the electrical signals of the piezoelectric piezoresistive composite film sensor 4. After the sensor signal enters the circuit, firstly, filtering and signal amplification processing are carried out through an operational amplifier, then, an AD7190 analog-to-digital converter is utilized to convert a voltage signal processed by the sensor into a digital signal, and finally, the digital signal converted by the ADC is transmitted to a single chip microcomputer to be processed; and the STM32 single chip microcomputer 2 is respectively connected with the STM32 single chip microcomputer 1 and the USR-C322 WIFI module.

The STM32 single chip microcomputer 1 is mainly used for calculating and processing digital signals obtained by ADC to obtain heart rate and respiration rate results and calculating pressure marks of the piezoresistive film sensors 3, and transmitting the heart rate, the respiration rate and the pressure marks obtained by calculation to the single chip microcomputer 2 through serial ports for further processing.

The STM32 single chip microcomputer 2 is mainly used for caching the heart rate and respiration rate calculation results sent by the single chip microcomputer 1, calculating a state mark of a human body on a bed by matching with a pressure mark, and sending the calculated state mark, the heart rate and the respiration rate to the communication module through a serial port; STM32 singlechip 2 still is used for the distribution network operation of WIFI module and handles the data that come from server transmission individual singlechip 2.

The USR-C322 WIFI module is connected with the Internet, and is used for forwarding the state mark, the heart rate data and the respiratory rate data which are obtained by calculating the single chip microcomputer 2 to the server and receiving the data which are sent by the server and sent by the single chip microcomputer 2.

Wherein, the mattress body 2 is provided with a piezoelectric piezoresistive composite film sensor 4 and a plurality of piezoresistive film sensors 3; the piezoelectric piezoresistive composite film sensor 4 and the piezoresistive film sensor 3 are both rectangular, and the long sides of the piezoelectric piezoresistive composite film sensor are smaller than the short sides of the mattress and are distributed in parallel with the short sides of the mattress; the piezoelectric piezoresistive composite film sensor 4 is arranged at a position close to the bed head.

The power supply unit comprises a 5V power adapter, a direct current converter, a voltage stabilizer and a linear voltage stabilizer; the power adapter provides power, and the current is stepped down through the direct current converter, the voltage stabilizer and the linear voltage stabilizer in sequence to obtain required voltage, and then is transmitted to each unit circuit.

The system mainly utilizes the characteristic that when the piezoelectric piezoresistive composite film sensor 4 is stretched or bent, an electric signal is generated between the surfaces of an upper electrode and a lower electrode to detect the vibration signal of a human body, then the sensor generates the electric signal and obtains a digital signal through an A/D conversion unit, the digital signal obtains the calculation results of heart rate and respiratory rate through a series of algorithms in a single chip microcomputer, and simultaneously the piezoresistive film sensor 3 is combined to acquire the pressure distribution condition of the human body on a bed to analyze the sleeping posture of the human body on the bed; in addition, the whole system can be connected with the Internet through the WIFI module to exchange data with the server.

The invention combines the advantages and the disadvantages of the piezoelectric film sensor and the piezoresistive film sensor to form a brand new measuring system, thereby not only solving the problem of data misjudgment caused by only using the piezoelectric film sensor to collect the vibration signal, but also avoiding the problem of analysis error caused by only using the piezoresistive film sensor to judge the pressure bearing and being incapable of distinguishing whether the pressure bearing is a living object; the accuracy and the reliability of data acquisition are improved by a mode of arranging a film sensor with a special shape and a film sensor in a scientific layout in the whole mattress.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.