A flexible pressure monitoring pad and pressure monitoring method

Abstract

The present invention discloses a flexible pressure monitoring pad and a pressure monitoring method, wherein the flexible pressure monitoring pad comprises a pressure collection box and a pressure collection board, wherein the pressure collection comprises an outer protective shell, a row electrode pressure collection line board, a column electrode pressure collection line board, an external interface, a power supply assembly, a fixing plate and a signal transceiver, wherein the power supply assembly comprises a rechargeable battery, a controller, a power supply indicator light and a power switch, and the pressure collection board has five layers, and the pressure collection board comprises a flexible protective cover, a silver fiber cloth and a thin film pressure sensor. The present invention is easy to carry, has strong damage resistance, a wide range of application environments, fast pressure monitoring speed, and high pressure monitoring accuracy, and is suitable for monitoring the pressure exerted by the human body on objects in hard or soft beds, sofas, chairs and other objects.

Description

Technical Field

[0001] The invention belongs to the field of pressure monitoring, and in particular relates to a flexible pressure monitoring pad and a pressure monitoring method. Background Art

[0002] Ergonomics is a discipline that studies various factors in anatomy, physiology, psychology, etc. of people in a certain working environment; studies the interaction between people, machines and the environment; studies how people consider work efficiency, health, safety and comfort in a unified way at work, in family life and on vacation. There is an important topic in ergonomics, namely the relationship between objects and the human body. When studying the relationship between objects and the human body, it is necessary to monitor the pressure exerted by the human body on the objects, and adjust the shape and specifications of the designed objects by monitoring the pressure exerted by the human body on the objects. For example, when the human body lies flat on the bed, the pressure exerted on the bed by the head, shoulders, arms, back, buttocks, thighs and calves is different. By monitoring the pressure of each part, the design of the bed surface is adjusted to be convex or concave, and the height of the convexity or concave, etc. In order to obtain the pressure exerted by the human body on the object, a pressure monitoring device is needed.

[0003] Current pressure monitoring devices have the following drawbacks when in use: First, they can only monitor a single part and cannot monitor the pressure of the entire human body on objects; second, they can only monitor objects made of hard materials, and the hard materials themselves have a reaction force on the human body, resulting in inaccurate human pressure data; third, when monitoring pressure, due to the differences in body shape of each person, the pressure monitoring device needs to be constantly adjusted during use, resulting in a cumbersome workload to obtain a wide range of pressure monitoring data exerted by the human body on objects, further increasing the difficulty of formulating industry specifications for objects. Summary of the invention

[0004] The technical problem to be solved by the present invention is: to overcome the shortcomings of the prior art and provide a flexible pressure monitoring pad and a pressure monitoring method, which are easy to carry, have strong damage resistance, have a wide range of application environments, have a fast pressure monitoring speed, and have high pressure monitoring accuracy. The pad is suitable for monitoring the pressure exerted by the human body on objects in hard or soft beds, sofas, chairs and other objects.

[0005] The technical solution of the present invention is: a flexible pressure monitoring pad, including a pressure collection box and a pressure collection board, the pressure collection box includes an outer protective shell, a row electrode pressure collection line board, a column electrode pressure collection line board, an external interface, a power supply component, a fixing plate and a signal transceiver;

[0006] The power supply assembly includes a rechargeable battery, a controller, a power indicator light and a power switch; the rechargeable battery is connected to the controller through a wire, and the controller is simultaneously connected to the row electrode pressure collection line board and the column electrode pressure collection line board through a wire; the external interface and the power switch are both installed on the column electrode pressure collection line board, the power indicator light is welded on the column electrode pressure collection line board, and extends out from the hole on the outer protective shell; one end cover of the fixed plate is pressed on the column electrode pressure collection line board, and the other end cover is pressed on the row electrode pressure collection line board, and the row electrode pressure collection line board is located below the column electrode pressure collection line board; the signal transceiver is installed on the fixed plate, and the signal transceiver is respectively connected to the row electrode pressure collection line board, the column electrode pressure collection line board and the controller through wires;

[0007] The pressure collection plate has a total of five layers, which are, from top to bottom, a flexible protective cover, a silver fiber cloth, a thin film pressure sensor, a silver fiber cloth and a flexible protective cover; the upper and lower layers of silver fiber cloth wrap the thin film pressure sensor, and the upper and lower layers of flexible protective covers are wrapped around the outside of the silver fiber cloth, and a portion of the thin film pressure sensor extends into the pressure collection box.

[0008] The flexible protective cover is made of polymer coiled material or flexible resin.

[0009] The thickness of the flexible protective cover is between 5 mm and 8 mm.

[0010] The thin film pressure sensor is provided with row scanning lines, column scanning lines, a wiring area, row electrodes and column electrodes.

[0011] The row scan lines and the column scan lines are arranged crosswise, and the intersections of the row scan lines and the column scan lines are pressure collection points.

[0012] The row electrodes and column electrodes on the thin film pressure sensor extend into the pressure collection box, and the row electrode contact surface is connected downward to the row electrode pressure collection line board in the pressure collection box, and the column electrode contact surface is connected upward to the column electrode pressure collection line board in the pressure collection box.

[0013] The fixing plate is a T-shaped fixing plate, the wide end cover of the fixing plate is pressed on the column electrode pressure collection line plate, and the narrow end cover is pressed on the row electrode pressure collection line plate, and it is ensured that one end of the row electrode pressure collection line plate extending to the column electrode pressure collection line plate is tightly attached to the bottom of the column electrode pressure collection line plate.

[0014] The row electrode pressure collection line board and the column electrode pressure collection line board are both equipped with storage devices for storing pressure information.

[0015] A method for pressure monitoring using the flexible pressure monitoring pad, comprising the following steps:

[0016] 1) Lay the flexible pressure monitoring pad on the surface of the object, and then press the power switch;

[0017] 2) Pair and connect the external display device and the signal transceiver device via wireless network or Bluetooth;

[0018] 3) The human body lies flat on the pressure collection board, and the monitored pressure data is displayed in real time on the external display device. After the pressure monitoring is completed, press the power switch to turn it off.

[0019] When step 2) is skipped and the external display device is not connected, the pressure data of the row scan line and column scan line monitored by the pressure acquisition board are stored in the storage devices on the row electrode pressure acquisition line board and the column electrode pressure acquisition line board respectively. When storing data, each time the pressure data monitored by the row scan line and the column scan line are zero at the same time, it is a storage node. When exporting data, it is exported through the signal transceiver device or the external interface.

[0020] Compared with the prior art, the present invention is innovative in that:

[0021] 1. By optimizing the design and combination of the pressure collection box and the pressure collection plate, a flexible pressure monitoring pad is made. The pressure monitoring is designed as a flexible pressure monitoring pad to solve the problem that the pressure monitoring device needs to be constantly adjusted when in use due to the differences in body shape of each person when monitoring pressure, resulting in a complex workload to obtain a wide range of pressure monitoring data exerted by the human body on objects, further increasing the difficulty of formulating industry specifications for objects;

[0022] 2. The flexible protective cover and thin film pressure sensor designed in the present invention solve the problem that the traditional pressure monitoring device can only monitor objects made of hard materials, and the hard materials themselves have a reaction force on the human body, resulting in inaccurate human body pressure data;

[0023] 3. The upward scanning lines and column scanning lines of the thin film pressure sensor in the present invention form a cross-type multi-point monitoring mode, which solves the problem that the traditional pressure monitoring device can only monitor a single part and cannot realize the pressure monitoring of objects in the entire human body.

[0024] 4. The pressure collection box designed in the present invention can ensure the safety and accuracy of the collected pressure monitoring data.

[0025] 5. The present invention is easy to carry, has strong damage resistance, has a wide range of application environments, has a fast pressure monitoring speed, and has a high pressure monitoring accuracy. It is suitable for monitoring the pressure exerted by the human body on objects such as hard or soft beds, sofas, and chairs. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the present invention;

[0027] Figure 2 This is a schematic diagram of the pressure collection box;

[0028] Figure 3 This is a schematic diagram of the pressure collection board;

[0029] Figure 4 It is a schematic diagram of the thin film pressure sensor of the present invention;

[0030] Figure 5 This is a schematic diagram of the real-time pressure data monitoring process for hard or soft beds, sofas, chairs and other items. DETAILED DESCRIPTION

[0031] The technical solution of the present invention will be clearly described below in conjunction with the accompanying drawings of the specification. In conjunction with the accompanying drawings of the specification, the specific implementation of the present invention is as follows:

[0032] See attached Figures 1 to 4 A flexible pressure monitoring pad includes a pressure collection box 1 and a pressure collection board 2. The pressure collection box 1 includes an outer protective shell 3, a row electrode pressure collection line board 7, a column electrode pressure collection line board 5, an external interface 11, a power supply component, a fixing plate 4 and a signal transceiver 9. The power supply component includes a rechargeable battery 6, a controller 10, a power supply indicator light 13 and a power switch 12. The pressure collection board 2 has five layers. The pressure collection board 2 includes a flexible protective cover 14, a silver fiber cloth 15 and a thin film pressure sensor 16. The rechargeable battery 6 is connected to the controller 10 through a wire, and the controller 10 is connected to the row electrode pressure collection line board 7 and The column electrode pressure acquisition board 5, the external interface 11 and the power switch 12 are installed on the column electrode pressure acquisition board 5, the row electrode pressure acquisition board 7 is located below the column electrode pressure acquisition board 5, the fixed plate 4 covers the row electrode pressure acquisition board 7, the signal transceiver 9 is installed above the fixed plate 4, the signal transceiver 9 connects the row electrode pressure acquisition board 7, the column electrode pressure acquisition board 5 and the controller 10 through a wire, the silver fiber cloth 15 wraps the thin film pressure sensor 16, the flexible protective cover 14 wraps the silver fiber cloth 15, and a section of the thin film pressure sensor 16 extends into the pressure acquisition box 1.

[0033] Preferably, the row electrode pressure collection line board 7 and the column electrode pressure collection line board 5 are provided with storage devices 8 .

[0034] Preferably, the flexible protective cover 14 is made of polymer coiled material or flexible resin, and the thickness of a single piece of the flexible protective cover 14 is 5 mm to 8 mm.

[0035] Preferably, the thin film pressure sensor 16 has row scanning lines 1607 , column scanning lines 1604 , a routing area 1603 , row electrodes 1602 and column electrodes 1601 .

[0036] Preferably, the row scan line 1607 and the column scan line 1604 are arranged crosswise, and the intersection of the row scan line 1607 and the column scan line 1604 is the pressure collection point 1605 .

[0037] Preferably, the row electrode 1602 and the column electrode 1601 of the thin film pressure sensor 16 extend into the pressure collection box 1, and the contact surface of the row electrode 1602 is connected to the row electrode pressure collection line board 7 downward, and the contact surface of the column electrode 1601 is connected to the column electrode pressure collection line board 5 upward.

[0038] The present invention can be applied to hard or soft beds, sofas, chairs and other items to monitor the real-time pressure data. The specific process is as follows: Figure 5 As shown; the algorithms and ergonomic evaluation levels stored in the software are obtained through experience test results of a large sample user group.

[0039] Research has shown that the ergonomics level (EL) has a direct correspondence with the following parameters, and the summary formula is as follows:

[0040] EL=k1PP+k2MF+k3CA

[0041] PP (kPa): Peak Pressure. If measuring the buttocks, select the PP value of the highest point of the ischial tuberosity. Other parts generally select the bone protrusion or the physiological bending area of ​​the joint;

[0042] MF (unit: N): Maximum Force. If measuring the buttocks, select the MF value of the highest point of the ischial tuberosity. For other parts, generally select the bone protrusion or the physiological bending area of ​​the joint;

[0043] CA (unit: cm 2 ):Contact Area, different parts of the human body, taking the spine as an example, are divided into regions according to the bony structures of the cervical vertebrae, thoracic vertebrae, lumbar vertebrae and sacral vertebrae, and the contact areas of different regions are calculated respectively.

[0044] K1, K2, and K3 are preset coefficients, which are obtained through basic research on a large sample of test populations. The coefficients will be slightly adjusted according to different parts of the body (hips, waist, back).

[0045] The experience results of each ergonomics indicator are assigned different scores: very good - 100 points, good - 80 points, average - 60 points, poor - 40 points, very poor - 20 points. Based on the experience results of all testers, the average value is calculated to obtain the comprehensive score of the user experience.

[0046] The first step is to lay the present invention on the surface of the object, and then press the power switch 12;

[0047] Step 2: Pair and connect the external display device with the signal transceiver 9 via wireless network or Bluetooth;

[0048] Step 3: The human body lies flat on the pressure collection board 2, and the monitored pressure data is displayed in real time on the external display device. After the pressure monitoring is completed, the power switch 12 is pressed to turn it off;

[0049] If the second step is skipped and the external display device is not connected, the pressure data of the row scan line 1607 and the column scan line 1604 monitored by the pressure acquisition board 2 are respectively stored in the storage 8 on the row electrode pressure acquisition line board 7 and the column electrode pressure acquisition line board 5. When storing data, each time the pressure data monitored by the row scan line 1607 and the column scan line 1604 are zero at the same time, it is a storage node. When exporting data, it is exported through the signal transceiver 9 or the external interface 11;

[0050] If the power indicator light 13 flashes at a high frequency of 3 to 5 times per second, it indicates that the power of the rechargeable battery 6 is too low. At this time, the controller 10 cuts off the power supply path of the signal transceiver 9, and the pressure data of the row scanning line 1607 and the column scanning line 1604 monitored by the pressure acquisition board 2 are respectively stored in the storage 8 on the row electrode pressure acquisition line board 7 and the column electrode pressure acquisition line board 5;

[0051] During the charging process, the power indicator light 13 flashes at a slow frequency of no more than 1 time / second, and at this time, the controller 10 opens the power supply path of the signal transceiver device 9.

[0052] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Those familiar with the technology may modify or improve the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A flexible pressure monitoring pad, characterized in that: It comprises a pressure collection box (1) and a pressure collection board (2), wherein the pressure collection box (1) comprises an outer protective shell (3), a row electrode pressure collection line board (7), a column electrode pressure collection line board (5), an external interface (11), a power supply component, a fixing board (4) and a signal transceiver (9); The power supply assembly comprises a rechargeable battery (6), a controller (10), a power indicator light (13) and a power switch (12); the rechargeable battery (6) is connected to the controller (10) through a wire, and the controller (10) is simultaneously connected to the row electrode pressure collection line board (7) and the column electrode pressure collection line board (5) through a wire; the external interface (11) and the power switch (12) are both mounted on the column electrode pressure collection line board (5), the power indicator light (13) is welded on the column electrode pressure collection line board (5) and extends out from the hole on the outer protective shell (3); one end of the fixed plate (4) is pressed on the column electrode pressure collection line board (5), and the other end is pressed on the row electrode pressure collection line board (7), and the row electrode pressure collection line board (7) is located below the column electrode pressure collection line board (5); the signal transceiver (9) is mounted on the fixed plate (4), and the signal transceiver (9) is respectively connected to the row electrode pressure collection line board (7), the column electrode pressure collection line board (5) and the controller (10) through wires; The pressure collection plate (2) has five layers in total, which are, from top to bottom, a flexible protective cover (14), a silver fiber cloth (15), a thin film pressure sensor (16), a silver fiber cloth (15), and a flexible protective cover (14); the upper and lower layers of silver fiber cloth (15) wrap the thin film pressure sensor (16), the upper and lower layers of flexible protective covers (14) wrap the outside of the silver fiber cloth (15), and a portion of the thin film pressure sensor (16) extends into the pressure collection box (1); The flexible protective cover (14) is made of polymer coiled material or flexible resin; The thickness of a single piece of the flexible protective cover (14) is between 5 mm and 8 mm; The thin film pressure sensor (16) has row scanning lines (1607), column scanning lines (1604), a wiring area (1603), row electrodes (1602) and column electrodes (1601); The row scanning line (1607) and the column scanning line (1604) are arranged in a cross pattern, and the intersection of the row scanning line (1607) and the column scanning line (1604) is a pressure collection point (1605); The row electrode (1602) and the column electrode (1601) of the thin film pressure sensor (16) extend into the pressure collection box (1), and the contact surface of the row electrode (1602) is downwardly connected to the row electrode pressure collection line board (7) in the pressure collection box (1), and the contact surface of the column electrode (1601) is upwardly connected to the column electrode pressure collection line board (5) in the pressure collection box (1); The fixing plate (4) is a T-shaped fixing plate, the wide end cover of the fixing plate (4) is pressed on the column electrode pressure collection line plate (5), and the narrow end cover is pressed on the row electrode pressure collection line plate (7), and it is ensured that one end of the row electrode pressure collection line plate (7) extending toward the column electrode pressure collection line plate (5) is in close contact with the bottom of the column electrode pressure collection line plate (5); The row electrode pressure collection line board (7) and the column electrode pressure collection line board (5) are both equipped with storage devices (8) for storing pressure information.

2. A method for pressure monitoring using the flexible pressure monitoring pad of claim 1, characterized in that Here are the steps: 1) Laying the flexible pressure monitoring pad on the surface of the object, and then pressing the power switch (12); 2) Pairing and connecting the external display device with the signal transceiver (9) via a wireless network or Bluetooth; 3) The human body lies flat on the pressure collection board (2), and the monitored pressure data is displayed in real time on the external display device. After the pressure monitoring is completed, the power switch (12) is pressed to turn it off; When step 2) is skipped and the external display device is not connected, the pressure data of the row scan line (1607) and the column scan line (1604) monitored by the pressure acquisition board (2) are respectively stored in the storage device (8) on the row electrode pressure acquisition line board (7) and the column electrode pressure acquisition line board (5). When storing data, each time the pressure data monitored by the row scan line (1607) and the column scan line (1604) are zero at the same time, it is a storage node. When exporting data, it is exported through the signal transceiver device (9) or the external interface (11); When the power indicator light (13) flashes at a high frequency of 3 to 5 times per second, it indicates that the power of the rechargeable battery (6) is too low. At this time, the controller (10) cuts off the power supply path of the signal transceiver (9), and the pressure data of the row scanning line (1607) and the column scanning line (1604) monitored by the pressure acquisition board (2) are respectively stored in the storage (8) on the row electrode pressure acquisition line board (7) and the column electrode pressure acquisition line board (5); During the charging process, the power supply indicator light (13) flashes at a slow frequency of no more than 1 time per second, and at this time, the controller (10) opens the power supply path of the signal transceiver device (9).

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