WO2014101253A1 - 气垫装置与承重感测方法 - Google Patents
气垫装置与承重感测方法 Download PDFInfo
- Publication number
- WO2014101253A1 WO2014101253A1 PCT/CN2013/000529 CN2013000529W WO2014101253A1 WO 2014101253 A1 WO2014101253 A1 WO 2014101253A1 CN 2013000529 W CN2013000529 W CN 2013000529W WO 2014101253 A1 WO2014101253 A1 WO 2014101253A1
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- WIPO (PCT)
- Prior art keywords
- gas
- pressure
- layer
- air
- sensing
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/18—Measuring force or stress, in general using properties of piezo-resistive materials, i.e. materials of which the ohmic resistance varies according to changes in magnitude or direction of force applied to the material
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
- A61G7/05—Parts, details or accessories of beds
- A61G7/0527—Weighing devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
- A61G7/05—Parts, details or accessories of beds
- A61G7/057—Arrangements for preventing bed-sores or for supporting patients with burns, e.g. mattresses specially adapted therefor
- A61G7/05769—Arrangements for preventing bed-sores or for supporting patients with burns, e.g. mattresses specially adapted therefor with inflatable chambers
- A61G7/05776—Arrangements for preventing bed-sores or for supporting patients with burns, e.g. mattresses specially adapted therefor with inflatable chambers with at least two groups of alternately inflated chambers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/44—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing persons
- G01G19/445—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing persons in a horizontal position
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G5/00—Weighing apparatus wherein the balancing is effected by fluid action
- G01G5/04—Weighing apparatus wherein the balancing is effected by fluid action with means for measuring the pressure imposed by the load on a liquid
- G01G5/045—Weighing apparatus wherein the balancing is effected by fluid action with means for measuring the pressure imposed by the load on a liquid combined with means for totalising the pressure imposed by several load-cells
Definitions
- the present invention relates to an air cushion device and a load bearing sensing method, and more particularly to an air cushion device having a two-layer design and a heavy sensing method using the air cushion device. Background technique
- Sitting and lying is one of the most basic activities of human beings. Human beings have many times in a sitting and lying position. Therefore, when the person is not sitting for a long time, the human body is prone to muscle pain and muscle stiffness. In addition, when the body is under pressure for a long period of time, for example, lying in a sitting position or sitting for a long time, it is also likely to cause diseases such as hemorrhoids, sores, eczema and hemorrhoids. Estimated costs for such diseases, up to billions of dollars per year.
- decompression mattresses have been produced.
- some decompression mattresses that do not require power, such as foam pads, fat pads, air pads or water pads, etc., which utilize the thickness and material properties of the mattress to achieve a reduced pressure effect.
- some decompression mattresses use a power unit to adjust the internal air pressure of the mattress to achieve the effect of decompression, such as intermittent air cushion, low pressure air floating mattress, electric continuous side flip bed or silica sand bed, etc. .
- understanding the state of stress between the human body and the environment is an indispensable indicator for promoting human health. Summary of the invention
- the air cushion device of the present invention includes at least one pressure sensing air enthalpy module.
- Pressure Sensing The gas enthalpy module includes a regulated gas enthalpy layer, a pressure equalizing gas layer, and a pressure sensing layer.
- the pressure equalizing gas layer is disposed on the gas pressure gas layer, wherein the pressure equalizing gas layer comprises a plurality of first cylindrical gas chambers communicating with each other and a plurality of second cylindrical gas chambers communicating with each other.
- the first cylindrical gas and the second cylindrical gas are stacked on the stabilized gas channel layer and arranged in an array.
- the pressure sensing layer is disposed between the stabilizing gas layer and the pressure equalizing gas layer to sense the pressure of the plurality of portions of the pressure equalizing gas layer.
- the load bearing sensing method of the present invention is for sensing load bearing via an air cushion device.
- the air cushion device includes at least one pressure sensing air enthalpy module, and each pressure sensing air enthalpy module includes a gas pressure gas enthalpy layer, a pressure equalizing gas enthalpy layer, and A pressure sensing layer.
- the pressure equalizing gas layer is disposed on the gas pressure gas layer, wherein the pressure equalizing gas layer comprises a plurality of first cylindrical gas chambers communicating with each other and a plurality of second cylindrical gas chambers communicating with each other.
- the first cylindrical gas and the second cylindrical gas are stacked on the gas-regulating gas barrier layer and arranged in an array.
- the pressure sensing layer is disposed between the stabilizing gas layer and the pressure equalizing gas layer to sense the pressure applied to the plurality of portions of the pressure equalizing gas layer.
- the load-bearing sensing method includes the following steps.
- the weight sensing module receives a weight through the pressure sensing. Increase the pressure of the regulated gas enthalpy layer and measure the sum of the pressures by the pressure sensing gas enthalpy module. Control the pressure relief of the gas pressure layer. Measured by each interval parameter. The sum of the pressures of each interval parameter is measured. A sum of the pressures of the pressure sensing layers is obtained corresponding to a parameter of the stabilized gas channel layer.
- the pressure sensing gas sampling module of the air cushion device of the present invention arranges the pressure equalizing gas layer on the gas pressure gas layer, and the pressure sensing layer is disposed between the gas pressure gas layer and the pressure gas layer.
- the pressure applied to the plurality of portions of the pressure equalizing gas layer is sensed. Accordingly, the air cushion device can improve the stability by stabilizing the gas enthalpy layer, and adjust the pressure equalizing gas layer according to the sensing result of the pressure sensing layer, thereby having better comfort, and the load sensing method can pass the air cushion
- the device senses weight.
- FIG. 1 is a schematic view of an air cushion device according to an embodiment of the present invention.
- Figure 2 is a partial enlarged cross-sectional view of the air cushion device of Figure 1;
- FIG. 3 is a schematic view of the pressure sensing air module of Figure 1;
- FIG. 4 is a schematic view showing the first tubular gas cylinder of the pressure sensing gas cylinder module of FIG. 3;
- FIG. 5 is a schematic view showing the second tubular gas cylinder of the pressure sensing gas cylinder module of FIG. 3;
- Figure 6 is a schematic view of the pressure sensing air module of Figure 3 in another perspective
- FIG. 7 is a schematic diagram of the pressure sensing gas cylinder module of FIG. 3 showing the stabilized gas channel layer
- Figure 8 is a side elevational view of the pressure sensing gas cylinder module of Figure 7 showing the stabilized gas channel layer;
- FIG. 9 is a schematic diagram of a pressure sensing circuit of the pressure sensing layer of FIG. 2;
- Figure 10 is a schematic illustration of the pressure sensing element of Figure 9;
- Figure 11 is a schematic view showing the characteristic curve of the pressure sensing element of Figure 10 under different air pressures and different pressure regulating gas layers;
- Figure 12 is a partial enlarged cross-sectional view of the pressure sensing air module of Figure 3;
- 15 is a flow chart showing the load sensing of the pressure sensing air module of FIG. 14;
- Figure 16 is a graph showing the pressure sensing result of Figure 15;
- 17 is a flow chart showing another load sensing of the pressure sensing air module of FIG. 14;
- Figure 18 is a graph showing the results of the pressure sensing of Figure 17. detailed description
- the air cushion device 10 includes a plurality of pressure sensing air module 100 and an anti-roll module 12.
- the anti-roll module 12 surrounds the pressure sensing air module 100 to prevent the pressure sensing air module 100 from being dumped and dispersed.
- the air cushion device 10 of the present embodiment is exemplified by a method including six pressure sensing gas cylinder modules 100, wherein the pressure sensing gas cylinder modules 100 are arranged in an array of 2x3, and the anti-rolling module 12 is arranged in an array of pressure sensing atmospheres. Module 100.
- the air cushion device may include one or other number of pressure sensing gas cylinder modules 100, and the present invention does not limit the number and arrangement of pressure sensing gas cylinder modules 100.
- the anti-roll module 12 is, for example, an anti-rolling pad, and is arranged in an array of pressure sensing air module 100 to fix the pressure sensing air module 100.
- the anti-roll module may be a foam pad or other component that can be used to surround and fix the pressure sensing gas module 100.
- the present invention does not limit the type of the anti-roll module, nor does it limit the anti-tip module. Set or not.
- the anti-roll module 12 is actually located at the outermost side of the air cushion device 10 and forms an annular shape, and the height of the anti-roll module 12 is greater than the height of the pressure sensing air module 100, for example, the height difference between the two is 1 cm to 2 cm from the ground. .
- the height difference between the anti-roll module 12 and the pressure sensing air module 100 can cause the air cushion device 10 to be slightly recessed from the outside to the inside, so that the air cushion device 10 is more ergonomic.
- the air cushion device 10 for example, lying on the pressure sensing air module 100 of the air cushion device 10, it has better comfort.
- Fig. 2 is a partially enlarged cross-sectional view showing the air cushion device of Fig. 1; 3 is a schematic view of the pressure sensing gas cylinder module of FIG. 1.
- the pressure sensing gas sensor module 100 includes a gas pressure gas layer 110 , a pressure equalizing gas layer 120 , and a pressure sensing layer 130 .
- the pressure equalizing gas layer 120 is disposed on the gas-stabilizing gas layer 110, wherein the pressure-pressure gas layer 120 includes a plurality of first cylindrical gas tubes 122 communicating with each other and a plurality of second cylindrical gas tubes 124 communicating with each other.
- the first cylindrical gas tube 122 and the second cylindrical gas tube 124 stand on the gas-regulating gas layer 110 and are arranged in an array.
- the pressure sensing layer 130 is disposed between the stabilized gas channel layer 110 and the pressure equalizing gas layer 120 for sensing the pressure applied to the plurality of portions of the pressure equalizing gas layer 120.
- the air cushion device 10 of the present embodiment is composed of six pressure sensing air enthalpy modules 100, each of the pressures
- the force sensing air module 100 is composed of a stabilized gas channel layer 110, a pressure equalizing gas layer 120 and a pressure sensing layer 130. Therefore, the modular air cushion device 10 and the pressure sensing air module 100 have good assembly.
- FIG. 4 is a schematic view showing the first tubular gas cylinder of the pressure sensing gas cylinder module of FIG. 3.
- Fig. 5 is a schematic view showing the second cylindrical gas cylinder of the pressure sensing gas cylinder module of Fig. 3. 4 and 5 respectively illustrate the second cylindrical gas chamber 124 and the first cylindrical gas chamber 122 to clearly show the arrangement and position of the first cylindrical gas chamber 122 and the second cylindrical gas chamber 124.
- the first cylindrical air chambers 122 are respectively arranged in a plurality of first rows A1, and the first cylindrical air chambers 122 of the first rows A1 are in communication with each other.
- the second cylindrical gas tubes 124 are respectively arranged in a plurality of second rows A2, and the second cylindrical gas tubes 124 of the second rows A2 are in communication with each other.
- the communication manner between the first cylindrical gas chamber 122 and the second cylindrical gas chamber 124 is, for example, a hole is formed in the side walls of the first cylindrical gas chamber 122 and the second cylindrical gas chamber 124, and correspondingly opened by ultrasonic waves.
- the holes are joined to each other such that the first cylindrical gas tubes 122 of the respective first rows A1 communicate with each other and the second cylindrical gas tubes 124 of the second rows A2 communicate with each other, but the present invention is not limited to the above-described communication method.
- the pressure equalizing gas layer 120 is exemplified by including twenty first cylindrical gas cylinders 122 and twenty second cylindrical gas cylinders 124.
- the first cylindrical gas cylinders 122 are arranged in four first rows A1, each of the first rows A1 has five first cylindrical gas cylinders 122, as shown in FIG. 4, and the second cylindrical gas cylinders 124 are arranged in four.
- each of the second rows A2 has five second cylindrical gas dams 124, as shown in FIG.
- the first cylindrical gas chamber 122 arranged in the first row A1 and the second cylindrical gas chamber 124 arranged in the second row A2 are alternately arranged to arrange the first cylindrical gas chamber 122 and the second cylindrical gas chamber 124 Make a 5x8 array, as shown in Figure 3.
- the alternate arrangement in the embodiment is, for example, that the first row A1 and the second row A2 are sequentially arranged such that the first rows A1 are not adjacent and the second rows A2 are not adjacent.
- the alternate arrangement may be that each of the two first rows A1 is one unit and each two second rows A2 is one unit, and the two first rows A1 of each unit and the two units of each unit
- the second row A2 is arranged in order, so that the two first rows A1 of the respective units are not adjacent to each other, and the two second rows A2 of the respective units are not adjacent to each other, and may also be other irregular alternately arranged manners, and the present invention does not limit the first
- the number of the cylindrical gas tubes 122 and the second cylindrical gas tubes 124 does not limit the manner in which the first rows A1 and the second rows A2 are alternately arranged.
- the pressure sensing air module 100 further includes a plurality of straps 140 .
- the first cylindrical gas chambers 122 arranged in the first row A1 and the second cylindrical gas tubes 124 arranged in the second row A2 are respectively disposed on the corresponding belts 140, and are fixed to the pressure regulating gas by the belts 140.
- the band 140 is, for example, a toroidal band. Therefore, the first cylindrical gas chamber 122 of each of the first rows A1 and the second cylindrical gas chambers 124 of the second rows A2 are fixed to the gas-regulating gas by surrounding the band 140 around the gas-regulating gas barrier layer 110.
- the first layered air enthalpy 122 is formed on the enamel layer 110 to avoid standing on the damped gas layer 110. And the second cylindrical gas cylinder 124 is dumped.
- the pressure sensing gas cylinder module 100 further includes a first gas pipe 150, a second gas pipe 160, and a third gas pipe 170.
- the first air tube 150 is connected to the first cylindrical air chamber 122 of the first row A1, and the second air tube 160 is connected to the second cylindrical air chamber 124 of the second row A2.
- the first air pipe 150 since the first cylindrical air ports 122 of the first row A1 are in communication with each other, the first air pipe 150 only needs to be connected to one of the first cylindrical air ports 122 of each of the first rows A1 to connect all The first cylindrical gas cylinder 122.
- the second air pipe 160 since the second cylindrical air dams 124 of the second row A2 are in communication with each other, the second air pipe 160 only needs to be connected to one of the second cylindrical air dams 124 of each of the second rows A2 to connect all the first Two tubular gas rafts 124.
- Figure 6 is a schematic illustration of the pressure sensing gas module of Figure 3 in another perspective.
- the first cylindrical gas chamber 122 arranged at the outermost side of the first row A1 and the second cylindrical gas chamber 124 arranged at the outermost side of the second row A2 are arranged.
- the length is longer than the length of the remaining first cylindrical gas tube 122 and the second cylindrical gas tube 124.
- the remaining first cylindrical gas chamber 122 and the second cylindrical gas chamber 124 stand on the top surface S1 of the gas-regulating gas layer 110, and the first cylindrical gas chambers 122 arranged in the outermost side of the first row A1 are arranged.
- the second cylindrical gas bulb 124 on the outermost side of the second row A2 extends to the side surface S2 of the pressure-stabilizing gas layer 110.
- all of the first cylindrical gas cylinders 122 of the pressure equalizing gas layer 120 are substantially coplanar with the tops of the second cylindrical gas cylinders 124, and are arranged in the first cylindrical shape of the outermost side of the first row A1 and the second row A2.
- the length of the gas cylinder 122 and the second cylindrical gas cylinder 124 is longer than the length of the remaining first cylindrical gas chamber 122 and the second cylindrical gas chamber 124 to extend to the side surface S2 of the gas-tight gas layer 110.
- the first cylindrical gas chamber 122 and the second cylindrical gas chamber 124 which are arranged at the outermost side of the first row A1 and the second row A2 and extend to the side surface S2 of the pressure-stabilizing gas layer 110 are The entire side surface S2 is not shielded so that the first cylindrical gas chamber 122 and the bottom portions 122a and 124a of the second cylindrical gas chamber 124 and the partial side surface S2 of the gas-regulating gas barrier layer 110 are extended to the side surface S2 of the gas-tight gas layer 110.
- the accommodating space S is formed as shown in FIG. 2.
- the first air pipe 150, the second air pipe 160, and the third air pipe 170 are accommodated in the accommodating space S, wherein the first air pipe 150 is connected to the outermost first cylindrical shape of each of the first rows A1 by a plurality of first air valves.
- the bottom portion 122a of the gas cylinder 122, the second gas pipe 160 is connected to the bottom portion 124a of the outermost second cylindrical gas bulb 124 of each second row A2 by a plurality of second gas valves 162, and the third gas pipe 170 is connected to the third gas valve 172 by the third gas valve 172.
- the side surface S2 of the stabilized gas enthalpy layer 110 is connected as shown in FIGS. 4 to 6.
- first air tube 150, the second air tube 160 and the third air tube 170 can inflate or deflate the first cylindrical gas tube 122, the second cylindrical gas tube 124 and the pressure regulating gas layer 110, respectively.
- the air pressure of the first cylindrical gas chamber 122, the second cylindrical gas chamber 124, and the pressure-stabilizing gas layer 110 is adjusted.
- each of the second rows A2 communicating with each other are simultaneously inflated or deflated to have the same air pressure, wherein each The first gas valve 152 and each of the second gas valves 162 can be selectively opened or closed according to requirements, so that the first cylindrical gas chamber 122 of each first row A1 and the second tubular gas of each second row A2
- the crucibles 124 can be operated separately with different air pressures.
- FIG. 7 is a schematic diagram of the pressure sensing gas cylinder module of FIG. 3 showing the stabilized gas channel layer.
- 8 is a side elevational view of the pressure sensing gas cylinder module of FIG. 7 showing the stabilized gas channel layer. Please refer to FIG. 7 and FIG. 8.
- FIG. 7 only shows a portion of the pressure equalizing gas layer 120 to clearly show the stabilized gas channel layer 110.
- the stabilized gas channel layer 110 includes a sub-band 112 disposed in the stabilizing gas layer 110 and connected to the upper wall 114 and the lower wall 116 of the gas-regulating gas layer 110.
- the stabilized gas channel layer 110 is a block-shaped independent gas cylinder.
- the stabilized gas channel layer 110 is respectively connected to the upper wall 114 and the lower wall 116 of the gas-regulating gas layer 110 through three strips 112, so that the top surface S1 and the bottom surface of the gas-regulating gas layer 110 are provided.
- S3 is relatively flat, wherein the support belts 112 respectively correspond to the joints of the first cylindrical gas chamber 122 and the second cylindrical gas chamber 124, so that the first cylindrical gas chambers 122 and the second tubular gas tubes 124 are respectively Positioned between the corresponding two bands 112. Accordingly, the contact area of the pressure sensing layer 130 disposed on the top surface S1 of the stabilized gas channel layer 110 and the first cylindrical gas channel 122 and the second cylindrical gas channel 124 of the pressure equalizing gas layer 120 is more average. In order to improve the accuracy of the sensing result, and the contact area of the bottom surface S3 of the stabilized gas pressure layer 110 with the ground is increased to increase the stability of the air cushion device 10.
- the stabilized gas channel layer 110 can have one or more sub-bands 112, and the present invention does not limit the number of sub-bands 112.
- the support connecting the upper wall 114 and the lower wall 116 of the stabilized gas channel layer 110 may also be an annular support. Both sides of the annular branch are connected to the upper wall 114 and the lower wall 116 to achieve the above functions.
- the annular band itself forms a ring shape, so that the top view of the structure of the gas-regulating gas layer 110 is similar to the "back" shape, wherein the outer shape of the "return” type is the side wall of the gas-regulating gas layer 110, and The inner loop of the back shape is an annular support, but the invention does not limit the type, shape and setting of the support.
- the support band 112 has a plurality of holes (not shown). When the gas-stabilizing gas layer 110 is filled with gas, the gas-regulating gas layer 110 is divided into a plurality of spaces by the branch 112, but the gas flows through the holes. The space of the gas-filled layer 110 is stabilized so that the entire stabilized gas-filled layer 110 has the same gas pressure.
- the pressure sensing layer 130 includes a plurality of pressures.
- the force sensing element 132 is disposed between the corresponding first cylindrical gas chamber 122 and the bottom portions 122a and 124a of the corresponding second cylindrical gas bulb 124 and the gas-regulating gas layer 110, as shown in FIG. 4 and FIG. .
- the pressure sensing element 132 may correspond to each of the first cylindrical gas tube 122 and each of the second cylindrical gas tubes 124, and may also selectively correspond to a portion of the first cylindrical gas chamber 122 and the second tubular gas.
- the ⁇ 124 is configured to sense the pressure applied to the plurality of portions of the pressure equalizing gas layer 120.
- the pressure sensing elements 132 are arranged in a pressure sensing array and are interconnected via a connecting line 134.
- the soft array sensing element using the soft electronic component technology is in response, and the pressure sensing element 132 of the present embodiment is the above-described soft array sensing element.
- the pressure sensing element 132 is a piezoresistive sensing technology.
- the upper and lower electrode layers 132b and the upper and lower piezoresistive sensing layers 132c are sequentially stacked on the inner side of the upper and lower substrates 132a, and the pressure sensitive adhesive 132d is disposed around the upper and lower substrates 132a.
- the upper and lower substrates 132a are bonded.
- the upper and lower substrates 132a are made of a soft plastic material so that the pressure sensing element 132 has a flexible property, and the upper and lower piezoresistive sensing layers 132c can be brought into contact with each other.
- the piezoresistive sensing layer 132c is a piezoresistive material which uniformly disperses nano-conductive particles in a high-molecular polymer by using a nano-dispersion technique to form a piezoresistive composite material having a linear reaction. Therefore, the nano conductive particles make the surface of the piezoresistive sensing layer 132c a rough surface that can be slightly deformed, so that the upper and lower piezoresistive sensing layers are caused by a slight deformation generated by the rough surface when the pressure sensing element 132 is applied by the positive force.
- the contact area of 132c increases.
- R resistance value
- the piezoresistive sensing layer 132c is deformed by the pressure, so that the cross-sectional area (A) of the piezoresistive sensing layer 132c is increased to cause the output resistance value to decrease.
- the upper and lower electrode layers 132b sense the change in the resistance value and record and judge the change in the resistance value by the back end system (for example, the sensing pressure sensing circuit 14a and the visual interface 16 of the control module 14 to be described later).
- the upper and lower piezoresistive sensing layers 132c can change the degree of contact between the two via the magnitude of the applied positive force, so that the magnitude of the sensed resistance value also changes.
- the pressure is removed, the slight deformation of the upper and lower piezoresistive sensing layers 132c can be quickly restored to the original state, so that no significant hysteresis occurs, and at the same time, good linearity and reproducibility are obtained.
- the air cushion device 10 further includes a control module 14.
- Control module 14 is connected to pressure sensing The layer 130, wherein the pressure sensing layer 130 senses the pressure of the portion of the pressure-receiving layer 120, and the control module 14 receives a sensing result of the pressure sensing layer 130.
- the control module 14 includes a pressure sensing circuit 14a, and the pressure sensing circuit 14a is shown in FIG.
- an analog front end signal processing circuit (analog frontend) with a microcontroller including a row controller and a row controller ( The row control signal and the column control signal output by the column controller are used to read the resistance value of the pressure sensing element 132, and then via an analog to digit converter (ADC). The analog value of the resistance value is converted to digital data. Then, the digital data is processed by a digital controller through a micro controller, and then the data is directly transmitted to the RS232 signal transmission and reception conversion circuit through the microcontroller.
- ADC analog to digit converter
- the air cushion device 10 further includes a visualization interface 16.
- the visual interface 16 is connected to the control module 14 for displaying the sensing result of the pressure sensing layer 130 received by the control module 14.
- the visualization interface 16 is connected to the RS232 signal transmission and reception conversion circuit described above.
- the RS232 signal transmission and reception conversion circuit outputs the data to the visualization interface 16 for displaying the pressure.
- the pressure distribution pattern of the pressure sensing array in which the pressure sensing elements 132 of the sensing layer 130 are arranged.
- the specifications and types of the pressure sensing circuit 14a and the visualization interface 16 of the control device 14 described above are as follows:
- the input power is a direct current (DC) with a voltage of 5 volts (V) and a current of 0.5 amps (A) or directly Use USB power supply through USB connection;
- digital output data is standard RS232 output interface, its digital transmission rate (baud rate) is 38400bps (bit per second) or 9600bps;
- pressure sensing circuit 14a can be read up to 32x32
- the array of 1024 pressure sensing elements 132, and the sensor interface (sensor interface) is a 2.54 connector, which is a single row of rows (female).
- the visual interface 16 is, for example, a human computer interface such as a notebook computer (NB) or a personal computer (PC) device for displaying a pressure distribution pattern of the pressure sensing layer 130.
- NB notebook computer
- PC personal computer
- the specification of the pressure sensing circuit 14a and the type of the visual interface 16 are only one embodiment of the present invention, and the present invention is not limited thereto.
- the pressure sensing element 132 of the present embodiment is a soft piezoresistive sensing element, and the upper and lower piezoresistive sensing layers 132c can change the resistance value via the magnitude of the applied positive force
- the resistance value of the pressure sensing element 132 is subjected to the weight of the pressure equalizing gas layer 120 and the gas pressure of the gas pressure regulating layer 110. influences.
- the pressure sensing layer 130 is a pressure sense via a plurality of portions corresponding to the pressure of the pressure equalizing gas layer 120. The resistance value of the measuring element 132 changes to know the pressure concentration point.
- the pressure sensing layer 130 is subjected to a fixed weight (for example, the weight of the pressure equalizing gas layer 120), and the gas pressure of the pressure regulating gas layer 110 is uniform, so that each pressure feeling
- the sensing elements 132 have the same resistance starting and sensing characteristics.
- the initial resistance value and the sensing characteristic of each pressure sensing element 132 are subjected to the weight carried by the pressure sensing element 132 (for example, the weight of the pressure equalizing gas layer 120) and the gas pressure of the gas pressure regulating layer 110. influences.
- FIG. 11 is a graphical representation of the characteristic curve of the pressure sensing element of Figure 10 under different air pressures and different gas pressure layers.
- FIG. 11 is a schematic diagram showing the characteristic curves of the pressure sensing element 132 under different air pressures and different gas pressure layers.
- Each curve represents the conductance (conductivity) of the pressure sensing element 132 at different pressures of the gas-regulating gas layer 110, which is subjected to different weights (unit: gram), wherein the horizontal axis is the weight, longitudinal The axis is the conductance value.
- the curve group shows the reciprocal (1/R) of the resistance value of the pressure sensing element 132 under different pressures of the gas pressure layer 110 under different pressures, and the upper half
- the curve group shows the reciprocal (1/AR) of the difference in resistance values of the pressure sensing element 132 under different pressures of the gas pressure layer 110 under different pressures and without bearing weight.
- the pressure sensing element 132 can adjust its sensing characteristics by adjusting the air pressure of the stabilized gas channel 110. After the gas pressure of the stabilized gas enthalpy layer 110 is fixed, the weight of the pressure sensing layer 130 is also fixed due to the uncompressed pressure equalizing gas layer 120, so the initial resistance value and the sensing characteristic of the pressure sensing element 132. It is thus also fixed (its sensing characteristics such as one of the curves of Fig. 11). Therefore, the resistance values of the respective pressure sensing elements 132 are the same before the pressure equalizing gas layer 120 is not subjected to additional pressure.
- the pressure sensing elements 132 corresponding to those portions subjected to the pressure change their resistance values according to the pressure values under a fixed sensing characteristic, and pass The change in the resistance value of each of the pressure sensing elements 132 is measured to know the position of the portion under pressure and its weight, and the result is transmitted to the pressure sensing circuit 14a of the control device 14 of FIG. 9 and the visualization interface 16 to determine The pressure concentration point on the compressed gas layer 120.
- the pressure sensing element 132 can be used to measure the pressure concentration position by changing the resistance value.
- the total weight is measured, for example, by measuring the weight of the patient.
- the measuring method is, for example, that the user (patient) lies on the pressure equalizing gas layer 120 of the air cushion device 10, so that the respective pressure sensing elements 132 change the resistance value by withstanding the pressure, and the pressure feeling is known by the resistance value change.
- the weight of the portion of the pressure equalizing gas layer 120 corresponding to the measuring element 132, and the sum of the weights corresponding to the difference value of each resistance value is User's weight.
- Figure 12 is a partial enlarged cross-sectional view of the pressure sensing air module of Figure 3.
- the pressure sensing gas sensor module 100 further includes a plurality of auxiliary detecting sheets 180.
- the auxiliary detecting piece 180 is disposed at the bottom portion 122a of the corresponding first cylindrical gas chamber 122 and the bottom portion 124a of the corresponding second cylindrical gas chamber 124.
- the auxiliary detecting piece 180 is disposed between the pressure sensing element 132 and the bottom portion 122a of the corresponding first cylindrical air chamber 122, or is disposed on the pressure sensing element 132 and the corresponding second cylindrical air valve 124.
- the bottom portion 124a is used to assist the pressure sensing element 132 to sense the pressure of the pressure equalizing gas layer 120, for example, to pass the pressure of the pressure equalizing gas layer 120 through the first cylindrical gas tube 122 and the second tube.
- the auxiliary detection sheet 180 of the gas cartridge 124 is accurately transmitted to the pressure sensing element 132.
- the auxiliary detecting piece 180 may be disposed on the pressure sensing element 132 or directly on the bottom portion 122a of the first cylindrical gas chamber 122 and the bottom portion 124a of the corresponding second cylindrical gas chamber 124.
- the present invention does not limit the auxiliary detection.
- FIG 13 is a schematic diagram of the control circuit of the pressure sensing air module of Figure 3.
- the air cushion device 10 includes an inflation module 18.
- the gas filling module 18 is connected to the pressure equalizing gas layer 120 and the control module 14.
- the control module 14 controls the inflation module 18 according to the sensing result of the pressure sensing layer 130 to adjust the air pressure of the pressure equalizing gas layer 120 through the inflation module 18.
- the inflation module 18 connects the first air tube 150, the second air tube 160 and the third air tube 170, and the control module 14 can control the inflation module 18 to inflate or deflate the first air tube 150, the second air tube 160 and the third air tube 170, and The first gas valve 152, the second gas valve 162, and the third gas valve 172 are controlled to be opened or closed.
- the inflation module 18 adjusts the air pressure of the stabilized gas channel layer 110 via the third gas pipe 170 and the third gas valve 172 to fix the sensing characteristics of the pressure sensing layer 130.
- the pressure sensing layer 130 senses the position and pressure value of those portions subjected to the pressure through the pressure sensing element 132, and The sensing result is transmitted to the visualization interface 16 via the pressure sensing circuit 14a of FIG. 9 to clearly know the position and pressure value of the pressure concentration point of the pressure equalizing gas layer 120.
- the control module 14 controls the inflation module 18 according to the sensing result of the pressure sensing layer 130, including controlling the first tubular valve 122 corresponding to the pressure-bearing portion or the first air valve connected to the second tubular gas valve 124. 152 or the second gas valve 162 to open the corresponding first gas valve 152 or second gas valve 162. Therefore, the inflation module 18 inflates or deflates the pressure-bearing first cylindrical gas tube 122 or the second cylindrical gas tube 124 via the first air tube 150 or the second air tube 160 to adjust the pressure of the pressure equalization gas layer 120. The pressure of the first cylindrical gas chamber 122 or the second cylindrical gas chamber 124 corresponding to those portions, The pressure applied to those portions of the pressure equalizing gas layer 120 is thus dispersed. Accordingly, the air cushion device 10 has a better comfort.
- FIG. 14 is a schematic illustration of the pressure sensing of the pressure sensing air module of Figure 3.
- 15 is a flow chart showing the load sensing of the pressure sensing air module of FIG. 14 is a schematic diagram of the pressure sensing gas cylinder module 100 bearing the weight W and sensing the pressure value through the pressure sensing layer 130, wherein the pressure sensing layer 130 only has a portion of the second tubular gas corresponding to the pressure equalizing gas layer 120.
- the pressure sensing element 132 of the crucible 124 and its measurement result are exemplified.
- the load bearing sensing method for sensing the load through the air cushion device 10 includes the following steps.
- the weight of the gas cylinder module 100 is taken up by the pressure sensing ⁇ .
- the pressure of the stabilized gas enthalpy layer 110 is increased to fix the stabilized gas enthalpy layer 110 to a higher pressure value, for example, a pressure value greater than one (PSI).
- PSI pressure value greater than one
- the pressure sensing layer 130 of the pressure sensing gas venting module 100 measures the pressure value at each point, as shown in the output of FIG. 14 to accumulate the points.
- the pressure value is the sum of the pressures.
- the pressure-regulating gas layer 110 is controlled to be depressurized via the control module 14 of Fig. 13, and is measured at intervals of each interval during the pressure release process.
- the parameter measured by the load-bearing sensing method is the pressure release value of the stabilized gas layer 110
- the interval parameter is an interval pressure at which the pressure-regulating gas layer 110 performs pressure relief.
- the air cushion device 10 of the present embodiment performs a measurement at intervals of each interval, for example, the pressure-regulating gas layer 110 measures the sum of pressures at a pressure of the pressure sensing layer 130 at a pressure of 0.3 (PSI).
- the above interval pressure is not limited to 0.3 (PSI), which is only used for illustration, and the smaller the value of the interval pressure, the more accurate the curve obtained.
- Figure 16 is a graph showing the results of the pressure sensing of Figure 15. Please refer to FIG. 14 to FIG. 16 , wherein FIG. 16 illustrates the pressure of the pressure-regulating gas layer 110 corresponding to the pressure measured by the pressure sensing layer 130 when the pressure sensor ⁇ module 100 is subjected to different weights. Multiple curves. Therefore, Fig. 16 can be regarded as a database in which the pressure sensor ⁇ module 100 is used in advance to measure the pressure sum by the above-described measurement method under the condition that the pressure sensor ⁇ module 100 is subjected to different weights. From the multiple curves in Figure 16, the pressure sensor ⁇ module can be seen.
- the pressure of the stabilized gas layer 110 and the pressure sensing layer 130 are different in the sum of the pressures measured during the pressure release of the gas-tight layer 110. Therefore, the curve measured in FIG. 15 corresponds to the database of FIG. 16 (the curve of FIG. 15 is shown by a broken line), and the weight W corresponding to the curve of FIG. 15 can be estimated via the database of FIG.
- the curve obtained by the above-described measurement method falls between the two curves of the database of FIG. 16, and the two curves respectively represent the pressure sensing gas sensor module 100. With a weight of 15 kg and a weight of 25 kg, it can be estimated that the weight W is about 20 kg.
- the pressure sensing schematic diagram of the pressure sensing air module 100 of FIG. 14 can also measure the weight by the load sensing process of FIG. 17, wherein the parameters of the load sensing process of FIG. 15 are stable.
- the pressure of the pressure enthalpy layer 110 is released, and the parameter of the load sensing process of FIG. 17 is the pressure release time of the tempering gas layer 110. Therefore, the load-bearing sensing process of Figure 17 is based on the measurement of each interval.
- the method for sensing the weight via the air cushion device 10 includes the following steps.
- the weight of the gas cylinder module 100 is taken up by the pressure sensing ⁇ .
- the pressure of the stabilized gas enthalpy layer 110 is increased and fixed to a higher pressure value, for example, a pressure value greater than 1 (PSI), and the pressure value is measured by the pressure sensing gas enthalpy module 100 via the pressure sensing layer 130, The sum of the pressures is obtained by accumulating the pressure values.
- PSI pressure value greater than 1
- the pressure-regulating gas layer 110 is controlled by the control module 14 of FIG. 13 and is measured at intervals of each interval during the pressure-relief process, wherein the parameter of the embodiment is the pressure-relief of the gas-tight gas layer 110.
- Time, and the interval parameter is an interval time during which the steady-state gas layer 110 is depressurized. Therefore, the air cushion device 10 of the present embodiment performs measurement once every interval time, for example, the voltage of the gas-regulating gas layer 110 is measured for 1 second, that is, the sum of the pressures at that time.
- the above interval time is not limited to 1 second, and the smaller the interval time value, the more accurate the obtained curve is.
- FIG. 18 is a graph showing the pressure sensing result of FIG. 17. Please refer to FIG. 14 , FIG. 17 and FIG. 18 , wherein FIG. 18 illustrates that the pressure sensor ⁇ module 100 is subjected to different weights, and the pressure relief time of the stabilized gas enthalpy layer 110 corresponds to the pressure sensing layer 130 . Multiple curves of the sum of the measured pressures. Therefore, FIG. 18 can be regarded as a database composed of the weights calculated by measuring the sum of the pressures by the above-described measurement method with the pressure sensor ⁇ module 100 being subjected to different weights in advance. It can be seen from the plurality of curves of FIG.
- the pressure sensor ⁇ module 100 is subjected to different weights, the pressure release time of the stabilized gas enthalpy layer 110, and the pressure sensing layer 130 are depressurized in the tempered gas layer 110.
- the curve of the sum of the pressures measured during the process is different. Therefore, the curve measured in FIG. 17 corresponds to the database of FIG. 18 (the curve of FIG. 17 is shown by a broken line), and the weight W corresponding to the curve of FIG. 17 can be estimated via the database of FIG.
- the curve obtained by the above-described measurement method falls between the curves of 10 kg and 15 kg in Fig. 16, so that the weight W can be estimated to be about 12 kg.
- the pressure sensing gas cylinder module 100 can measure the weight it bears by the two measurement methods described above.
- the air cushion device of the present invention includes a pressure sensing air enthalpy module, and the pressure sensing air enthalpy module includes a gas tempering gas layer 110, a pressure equalizing gas layer 120 and a pressure sensing layer 130, so that the modular air cushion The device has good assembly.
- the pressure sensing gas enthalpy module arranges the pressure equalizing gas layer on the stabilized gas enthalpy layer to improve stability by stabilizing the gas enthalpy layer, and the pressure sensing layer is disposed in the gas tempering layer and the pressure equalizing gas layer Between the two, the pressure sensing layer is connected to the visual interface to display the sensing result of the pressure sensing layer.
- the air cushion device further includes a control module and an inflation module for adjusting the air pressure of those portions of the pressure equalizing gas layer that are subjected to the pressure according to the sensing result of the pressure sensing layer, thereby dispersing the pressure of the pressure equalizing gas layer and having the pressure Better comfort. Accordingly, the air cushion device has good assembly, stability and comfort.
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Abstract
一种气垫装置(10),包括至少一压力感测气囊模块(100),各该压力感测气囊模块(100)包括:稳压气囊层(110)、均压气囊层(120)和压力感测层(130)。其中,均压气囊层(120)配置于稳压气囊层(110)上,该均压气囊层(120)包括相互连通的多个第一筒状气囊(122)以及相互连通的多个第二筒状气囊(124),该些第一筒状气囊(122)以及该些第二筒状气囊(124)立于该稳压气囊层(110)上并且排列成一阵列。该压力感测层(130)配置于该稳压气囊层(110)与该均压气囊层(120)之间,用以感测该均压气囊层(120)的多个部位所承受的压力。还包括一种应用该气垫装置的承重感测方法。
Description
气垫装置与承重感测方法 技术领域
本发明是有关于一种气垫装置与承重感测方法, 且特别是有关于一种具有两 层式设计的气垫装置与应用此气垫装置的 重感测方法。 背景技术
坐卧是人类最基本的活动之一, 人类有许多时间处于坐姿与躺姿的状态。 因 此, 当长期坐卧不当时, 人体容易产生肌肉疼痛、 肌肉僵硬等状况。 此外, 在人 体长期处于受压的情况下, 例如是长时间处于躺姿或坐姿, 也容易引起褥疮、 坐 疮、 湿疹及痔疮等疾病。 概估用于此类疾病的费用, 每年高达数十亿美金。
近年来, 已陆续有一些减压床垫产生。 举例而言, 有一些不需要动力的减压 床垫, 例如是泡棉垫、 脂肪垫、 空气垫或水垫等等, 其利用床垫的厚薄与材质特 性达到减压的效果。另外,有一些减压床垫通过动力装置来调节床垫的内部气压, 以达到减压的效果, 例如是间歇性式气垫、 低压气浮床垫、 电动持续两侧翻转床 或者硅砂床等等。 为改善上述疾病的发生, 了解人体与环境间受力状态, 是促进 人体健康不可或缺的指标。 发明内容
本发明的目的在于提供一种气垫装置, 可提高稳定性并具有较佳的舒适度。 本发明的再一目的在于提供一种^重感测方法, 用以经由本申请的气垫装置 感测承重。
为达上述目的, 本发明的气垫装置包括至少一压力感测气嚢模块。 压力感测 气嚢模块包括一稳压气嚢层、 一均压气嚢层以及一压力感测层。 均压气嚢层配置 于稳压气嚢层上, 其中均压气嚢层包括相互连通的多个第一筒状气嚢以及相互连 通的多个第二筒状气嚢。 第一筒状气嚢以及第二筒状气嚢立于稳压气嚢层上并且 排列成一阵列。 压力感测层配置于稳压气嚢层与均压气嚢层之间, 用以感测均压 气嚢层的多个部位所^ ^受的压力。
本发明的承重感测方法用以经由一气垫装置感测承重。 气垫装置包括至少一 压力感测气嚢模块, 各压力感测气嚢模块包括一稳压气嚢层、 一均压气嚢层以及
一压力感测层。 均压气嚢层配置于稳压气嚢层上, 其中均压气嚢层包括相互连通 的多个第一筒状气嚢以及相互连通的多个第二筒状气嚢。 第一筒状气嚢以及第二 筒状气嚢立于稳压气嚢层上并且排列成一阵列。 压力感测层配置于稳压气嚢层与 均压气嚢层之间, 用以感测均压气嚢层的多个部位所承受的压力。 承重感测方法 包括下列步骤。 通过压力感测气嚢模块承受一重量。 增加稳压气嚢层的压力, 并 且通过压力感测气嚢模块量测压力总和。 控制稳压气嚢层释压。 相隔每一间隔参 数进行量测。 量测每一间隔参数的压力总和。 得到压力感测层的压力总和对应于 稳压气嚢层的一参数的曲线图。
基于上述, 本发明的气垫装置的压力感测气嚢模块将均压气嚢层配置于稳压 气嚢层上, 而压力感测层配置于稳压气嚢层与均压气嚢层之间, 用以感测均压气 嚢层的多个部位所^受的压力。据此,气垫装置可通过稳压气嚢层来提高稳定性, 并依据压力感测层的感测结果来调整均压气嚢层, 进而具有较佳的舒适度, 而承 重感测方法能经由气垫装置感测 重。
为让本发明的上述特征和优点能更明显易懂, 下文特举实施例, 并配合所附 附图作详细说明如下。 附图说明
图 1是本发明一实施例的气垫装置的示意图;
图 2是图 1的气垫装置的局部放大剖视图;
图 3是图 1的压力感测气嚢模块的示意图;
图 4是图 3的压力感测气嚢模块绘示第一筒状气嚢的示意图;
图 5是图 3的压力感测气嚢模块绘示第二筒状气嚢的示意图;
图 6是图 3的压力感测气嚢模块于另一视角的示意图;
图 7是图 3的压力感测气嚢模块绘示稳压气嚢层的示意图;
图 8是图 7的压力感测气嚢模块绘示稳压气嚢层的侧视示意图;
图 9是图 2的压力感测层的压力感测电路示意图;
图 10是图 9的压力感测元件的示意图;
图 11是图 10的压力感测元件在承受不同重量以及不同稳压气嚢层的气压下 的特性曲线示意图;
图 12是图 3的压力感测气嚢模块的局部放大剖视图;
图 13是图 3的压力感测气嚢模块的控制电路示意图;
图 14是图 3的压力感测气嚢模块的压力感测示意图;
图 15绘示图 14的压力感测气嚢模块的承重感测流程图;
图 16绘示图 15的压力感测结果的曲线图;
图 17绘示图 14的压力感测气嚢模块的另一承重感测流程图;
图 18绘示图 17的压力感测结果的曲线图。 具体实施方式
图 1是本发明一实施例的气垫装置的示意图。 请参考图 1 , 在本实施例中, 气垫装置 10包括多个压力感测气嚢模块 100以及防倾模块 12。防倾模块 12环绕 压力感测气嚢模块 100, 以避免压力感测气嚢模块 100产生倾倒而分散。 本实施 例的气垫装置 10是以包括六个压力感测气嚢模块 100为例,其中压力感测气嚢模 块 100排列成 2x3的阵列,防倾模块 12环绕排列成阵列的压力感测气嚢模块 100。 然而, 在其他实施例中, 气垫装置可包括一个或者其他数量的压力感测气嚢模块 100, 本发明不限制压力感测气嚢模块 100的数量与排列方式。
在本实施例中, 防倾模块 12 例如是防倾气垫, 环绕排列成阵列的压力感测 气嚢模块 100, 以固定压力感测气嚢模块 100。 然而, 在其他实施例中, 防倾模块 可为泡棉垫或者其他可用以环绕并固定压力感测气嚢模块 100的组件, 本发明不 限制防倾模块的种类,也不限制防倾模块的设置与否。防倾模块 12实际上位于气 垫装置 10的最外侧并形成环状,且防倾模块 12的高度大于压力感测气嚢模块 100 的高度, 例如是两者距离地面的高度相差 1公分至 2公分。 因此, 防倾模块 12 与压力感测气嚢模块 100之间的高低差可使气垫装置 10由外往内呈现略微的凹 陷, 以使气垫装置 10更为符合人体工学。 当使用者使用气垫装置 10, 例如是躺 在气垫装置 10的压力感测气嚢模块 100上时, 具有较佳的舒适度。
图 2是图 1的气垫装置的局部放大剖视图。 图 3是图 1的压力感测气嚢模块 的示意图。 请参考图 2与图 3 , 在本实施例中, 压力感测气嚢模块 100包括稳压 气嚢层 110、均压气嚢层 120以及压力感测层 130。均压气嚢层 120配置于稳压气 嚢层 110上, 其中均压气嚢层 120包括相互连通的多个第一筒状气嚢 122以及相 互连通的多个第二筒状气嚢 124。 第一筒状气嚢 122以及第二筒状气嚢 124立于 稳压气嚢层 110上并且排列成一阵列。 压力感测层 130配置于稳压气嚢层 110与 均压气嚢层 120之间,用以感测均压气嚢层 120的多个部位所承受的压力。此外, 由于本实施例的气垫装置 10是由六个压力感测气嚢模块 100所组成,其中每一压
力感测气嚢模块 100是由稳压气嚢层 110、 均压气嚢层 120与压力感测层 130所 组成。 因此, 模块化的气垫装置 10与压力感测气嚢模块 100具有良好的组装性。
图 4是图 3的压力感测气嚢模块绘示第一筒状气嚢的示意图。 图 5是图 3的 压力感测气嚢模块绘示第二筒状气嚢的示意图。 图 4与图 5分别省略绘示第二筒 状气嚢 124与第一筒状气嚢 122, 以清楚展现第一筒状气嚢 122与第二筒状气嚢 124的排列方式与位置。 请参考图 2至图 5, 在本实施例中, 第一筒状气嚢 122 分别排列成多个第一排 A1 , 并且各第一排 A1的第一筒状气嚢 122互相连通。 第 二筒状气嚢 124分别排列成多个第二排 A2,并且各第二排 A2的第二筒状气嚢 124 互相连通。 第一筒状气嚢 122与第二筒状气嚢 124的连通方式例如是在第一筒状 气嚢 122与第二筒状气嚢 124的侧壁开孔,并通过超音波将对应的开孔互相接合, 以使各第一排 A1的第一筒状气嚢 122互相连通并且各第二排 A2的第二筒状气嚢 124互相连通, 但本发明不限于上述的连通方法。
在本实施例中, 均压气嚢层 120是以包括二十个第一筒状气嚢 122与二十个 第二筒状气嚢 124为例。 第一筒状气嚢 122排列成四个第一排 A1 , 各第一排 A1 具有五个第一筒状气嚢 122, 如图 4所示, 而第二筒状气嚢 124排列成四个第二 排 A2, 各第二排 A2具有五个第二筒状气嚢 124, 如图 5所示。排列成第一排 A1 的第一筒状气嚢 122与排列成第二排 A2的第二筒状气嚢 124交替排列, 以使第 一筒状气嚢 122与第二筒状气嚢 124排列成一个 5x8的阵列, 如图 3所示。 本实 施例所述的交替排列的方式例如是第一排 A1与第二排 A2依序排列,使得各第一 排 A1不相邻并且各第二排 A2不相邻。 然而, 在其他实施例中, 交替排列的方式 可以是每两个第一排 A1为一单位且每两个第二排 A2为一单位,各单位的两第一 排 A1与各单位的两第二排 A2依序排列,使得各单位的两第一排 A1不相邻且各 单位的两第二排 A2不相邻, 也可以是其他的不规则的交替排列的方式, 本发明 不限制第一筒状气嚢 122与第二筒状气嚢 124的数量, 也不限制第一排 A1与第 二排 A2的交替排列的方式。
另一方面, 请参考图 4与图 5 , 在本实施例中, 压力感测气嚢模块 100还包 括多条束带 140。排列成第一排 A1的第一筒状气嚢 122与排列成第二排 A2的第 二筒状气嚢 124分别配置于对应的束带 140上, 并通过束带 140固定于稳压气嚢 层 110上, 其中束带 140例如是环型带。 因此, 各第一排 A1的第一筒状气嚢 122 与各第二排 A2的第二筒状气嚢 124通过将束带 140环绕在稳压气嚢层 110的周 围而固定于稳压气嚢层 110上,以避免立于稳压气嚢层 110上的第一筒状气嚢 122
以及第二筒状气嚢 124产生倾倒。
此外, 在本实施例中, 压力感测气嚢模块 100还包括第一气管 150、 第二气 管 160与第三气管 170。第一气管 150连接排列成第一排 A1的第一筒状气嚢 122, 而第二气管 160连接排列成第二排 A2的第二筒状气嚢 124。更进一步地说, 由于 各第一排 A1的第一筒状气嚢 122互相连通, 因此第一气管 150只需连接到各第 一排 A1的其中一个第一筒状气嚢 122即可连接所有的第一筒状气嚢 122。同样地, 由于各第二排 A2的第二筒状气嚢 124互相连通, 因此第二气管 160只需连接到 各第二排 A2的其中一个第二筒状气嚢 124即可连接所有的第二筒状气嚢 124。
图 6是图 3的压力感测气嚢模块于另一视角的示意图。 请参考图 2、 图 4至 图 6,在本实施例中,排列在第一排 A1最外侧的第一筒状气嚢 122与排列在第二 排 A2最外侧的第二筒状气嚢 124的长度比其余的第一筒状气嚢 122与第二筒状 气嚢 124的长度长。 其余的第一筒状气嚢 122与第二筒状气嚢 124立于稳压气嚢 层 110的顶面 S1上,而排列在第一排 A1最外侧的第一筒状气嚢 122与排列在第 二排 A2最外侧的第二筒状气嚢 124延伸至稳压气嚢层 110的侧面 S2。 换言之, 均压气嚢层 120的所有第一筒状气嚢 122与第二筒状气嚢 124的顶部实际上共平 面,而排列在第一排 A1与第二排 A2最外侧的第一筒状气嚢 122与第二筒状气嚢 124的长度比其余的第一筒状气嚢 122与第二筒状气嚢 124的长度长, 以延伸至 稳压气嚢层 110的侧面 S2。
此外,在本实施例中,排列在第一排 A1与第二排 A2最外侧并延伸至稳压气 嚢层 110的侧面 S2的第一筒状气嚢 122与第二筒状气嚢 124并没有遮蔽整个侧 面 S2, 使得延伸至稳压气嚢层 110的侧面 S2的第一筒状气嚢 122与第二筒状气 嚢 124的底部 122a与 124a与稳压气嚢层 110的部分侧面 S2形成容置空间 S,如 图 2所示。 因此, 第一气管 150、第二气管 160与第三气管 170容置于容置空间 S 内, 其中第一气管 150以多个第一气阀 连接各第一排 A1最外侧的第一筒状 气嚢 122的底部 122a, 第二气管 160以多个第二气阀 162连接各第二排 A2最外 侧的第二筒状气嚢 124的底部 124a, 而第三气管 170以第三气阀 172连接稳压气 嚢层 110的侧面 S2, 如图 4至图 6所示。
由此可知, 第一气管 150、 第二气管 160与第三气管 170可分别对第一筒状 气嚢 122、 第二筒状气嚢 124与稳压气嚢层 110进行充气或放气, 以调整第一筒 状气嚢 122、 第二筒状气嚢 124与稳压气嚢层 110的气压。 互相连通的各第一排
A1与互相连通的各第二排 A2同时进行充气或放气, 以具有相同的气压, 其中各
第一气阀 152与各第二气阀 162可依据需求而选择性的开启或关闭, 以使各第一 排 A1的第一筒状气嚢 122与各第二排 A2的第二筒状气嚢 124可分开操作而具有 不同的气压。
图 7是图 3的压力感测气嚢模块绘示稳压气嚢层的示意图。 图 8是图 7的压 力感测气嚢模块绘示稳压气嚢层的侧视示意图。 请参考图 7与图 8, 图 7仅绘示 部分均压气嚢层 120, 以清楚展示稳压气嚢层 110。 在本实施例中, 稳压气嚢层 110包括支带 112,配置于稳压气嚢层 110内并连接稳压气嚢层 110的上壁 114与 下壁 116。 详细而言, 稳压气嚢层 110为一块状的独立气嚢。 一般的气嚢在充气 之后, 通常会出现中央部分较周围部分突出的现象。 此现象会使配置于稳压气嚢 层 110的顶面 S1与均压气嚢层 120之间的压力感测层 130感测均压气嚢层 120 的多个部位所 7|受的压力所得的感测结果失准, 并且容易使稳压气嚢层 110的底 面 S3因中央部分突起而与地面接触面积缩小, 进而容易产生倾斜。
因此, 在本实施例中, 稳压气嚢层 110通过三条支带 112分别连接稳压气嚢 层 110的上壁 114与下壁 116, 以使稳压气嚢层 110的顶面 S1与底面 S3较为平 坦, 其中支带 112分别对应于第一筒状气嚢 122与第二筒状气嚢 124的连接处, 以使各第一筒状气嚢 122与各第二筒状气嚢 124分别位在对应的两支带 112之间。 据此, 配置于稳压气嚢层 110的顶面 S1上的压力感测层 130与均压气嚢层 120 的第一筒状气嚢 122与第二筒状气嚢 124的接触面积更为平均, 以提高感测结果 的准确度, 且稳压气嚢层 110的底面 S3与地面的接触面积提高而增加气垫装置 10的稳定性。
然而, 在其他实施例中, 稳压气嚢层 110可具有一条或多条支带 112, 本发 明不限制支带 112的数量。 在其他未绘示的实施例中, 连接稳压气嚢层 110的上 壁 114与下壁 116的支带也可为环状支带。 环状支带的两侧连接上壁 114与下壁 116, 以达上述的功能。 环状支带本身形成环状, 使得稳压气嚢层 110的结构的俯 视图类似于「回」字型,其中「回」字型的外圏为稳压气嚢层 110的侧壁, 而「回」 字型的内圏为环状支带,但本发明并不限制支带的种类、形状与设置与否。 此外, 支带 112上具有多个孔洞(未绘示), 当稳压气嚢层 110填充气体时, 稳压气嚢层 110虽以支带 112分隔成多个空间, 但气体会经由孔洞流动至稳压气嚢层 110的 各空间, 以使整个稳压气嚢层 110具有相同气压。
图 9是图 2的压力感测层的压力感测电路示意图。 图 10是图 9的压力感测 元件的示意图。 请参考图 9至图 10, 在本实施例中, 压力感测层 130包括多个压
力感测元件 132, 配置于对应的第一筒状气嚢 122 以及对应的第二筒状气嚢 124 的底部 122a与 124a与稳压气嚢层 110之间, 如图 4与图 5所示。 压力感测元件 132可对应于每一第一筒状气嚢 122以及每一第二筒状气嚢 124,也可选择性的对 应于部分的第一筒状气嚢 122 以及第二筒状气嚢 124, 用以感测均压气嚢层 120 的多个部位所 受的压力。 压力感测元件 132排列成压力感测阵列, 并经由连接 线 134互相连接。
随着时代的进步, 一些电子产品, 例如是看护床垫, 会在内部配置压力感测 阵列, 以便侦测或记录使用者的睡卧状态。 因此, 应用软性电子零组件技术的软 性阵列感测元件因应而生, 而本实施例的压力感测元件 132即为上述的软性阵列 感测元件。压力感测元件 132采用压阻式感测技术,其在上下基板 132a的内侧分 别依序堆叠上下电极层 132b以及上下压阻感应层 132c, 并在上下基板 132a的四 周布置压感胶 132d, 以使上下基板 132a黏合。 上下基板 132a使用柔软的塑胶材 料, 以使压力感测元件 132具有可挠曲的特性,并且让上下压阻感应层 132c可以 相互接触。
压阻感应层 132c为一种压阻材料,其利用纳米分散技术将纳米导电粒子均匀 分散于高分子聚合物其中, 以形成一个具有线性反应的压阻式复合材料。 因此, 纳米导电粒子使压阻感应层 132c的表面为可微量变形的粗糙表面,以在压力感测 元件 132在受到正向力施加时, 通过粗糙表面产生的微量变形, 使上下压阻感应 层 132c的接触面积增加。 具体而言, 受压变形后的压阻感应层 132c会以电阻定 律(R=pL/A ) 而产生电阻值 ( R ) 变化。 当压力感测元件 132受压时, 压阻感应 层 132c因受压而产生 量变形, 使得压阻感应层 132c的截面积(A )增加而导 致输出电阻值降低。 此时, 上下电极层 132b感测电阻值变化并通过后端系统(例 如是后述的控制模块 14的感测压力感测电路 14a以及可视化界面 16 )进行电阻 值变化的纪录与判断。 因此,上下压阻感应层 132c能经由所施加的正向力大小不 同而改变两者之间的接触程度, 使得所感测到的电阻值大小也会改变。 当压力移 除以后,上下压阻感应层 132c的微量变形可迅速回复原状, 因此不会产生明显的 迟滞现象, 同时具有良好的线性度以及重现性。
由此类压力感测元件 132所组成的软性阵列感测具有结构筒单、 易于使用、 轻薄、 可挠曲、 抗摔、 低耗电等特点, 并且可利用网版印刷技术印刷至基板 132a 上。 然而, 压力感测元件 132必须搭配压力感测电路才能实现它的效能。 具体而 言, 在本实施例中, 气垫装置 10还包括控制模块 14。 控制模块 14连接压力感测
层 130, 其中压力感测层 130感测均压气嚢层 120的部位所承受的压力, 而控制 模块 14接收压力感测层 130的一感测结果。控制模块 14包括压力感测电路 14a, 压力感测电路 14a如图 9 所示, 其主要通过模拟前端信号处理电路 ( analog frontend )搭配微控制器包括列控制器 (row controller ) 与行控制器 (column controller )所输出的列控制信号 ( row control signal )及行控制信号 ( column control signal )来读取压力感测元件 132的电阻值,再经由模拟数字转换器( analog to digit converter, ADC )将电阻值的模拟数值转换到数字数据。 接着, 将数字数据通过 微控制器( micro controller )进行数字信号处理后, 将数据直接通过微控制器传送 到 RS232信号传送接收转换电路。
此外, 在本实施例中, 气垫装置 10还包括可视化界面 16。 可视化界面 16连 接控制模块 14, 用以显示控制模块 14所接收的压力感测层 130的感测结果。 具 体来说, 可视化界面 16连接上述的 RS232信号传送接收转换电路。 当数字数据 通过微控制器进行数字信号处理,并直接通过微控制器传送到 RS232信号传送接 收转换电^^后, RS232信号传送接收转换电^^将数据输出到可视化界面 16, 用以显示压力感测层 130的压力感测元件 132所排列而成的压力感测阵列的压力 分布图形。
上述的控制装置 14的压力感测电路 14a与可视化界面 16的规格与种类如下: 输入电源为电压是 5伏特( V )而电流是 0.5安培( A )的直流电( Direct Current, DC )或是直接通过 USB接线使用 USB 电源; 数字输出数据为标准 RS232输出 界面,其数字传输速率(鲍率( baud rate ) )为 38400bps( bit per second )或者 9600bps; 压力感测电路 14a最多可读取排列成 32x32阵列的 1024个压力感测元件 132,而 感测元件界面( sensor interface )为 2.54连接器(connector ), 其为单排排座(母 座)。 可视化界面 16例如是笔记型电脑( notebook, NB )或是个人电脑 ( personal computer, PC )装置等人机界面, 用以显示压力感测层 130的压力分布图形。 然 而,上述的压力感测电路 14a的规格与可视化界面 16的种类仅为本发明的其中一 实施例, 本发明不以此为限制。
另一方面, 由于本实施例的压力感测元件 132为软性的压阻式感测元件, 且 其上下压阻感应层 132c能经由所施加的正向力大小不同而改变电阻值,因此当压 力感测层 130配置于稳压气嚢层 110与均压气嚢层 120之间时,压力感测元件 132 的电阻值会受到均压气嚢层 120的重量与稳压气嚢层 110的气压的影响。 具体来 说, 压力感测层 130是经由对应于均压气嚢层 120承受压力的多个部位的压力感
测元件 132的电阻值变化来得知压力集中点。 因此, 在均压气嚢层 120未^受压 力之前,压力感测层 130承受固定重量(例如是均压气嚢层 120的重量), 且稳压 气嚢层 110的气压均匀, 使得每一压力感测元件 132具有相同的电阻起始值与感 测特性。 此时, 每一压力感测元件 132的起始电阻值与感测特性受到压力感测元 件 132所承载的重量(例如是均压气嚢层 120的重量 )与稳压气嚢层 110的气压 的影响。
图 11是图 10的压力感测元件在承受不同重量以及不同稳压气嚢层的气压下 的特性曲线示意图。 请参考图 11 , 图 11绘示压力感测元件 132在承受不同重量 以及不同稳压气嚢层的气压下的特性曲线示意图。 每一条曲线代表压力感测元件 132在稳压气嚢层 110处于各个不同的气压下, 其承受不同的重量(单位: 克) 时所对应的电导值(conductivity ), 其中横轴为重量, 纵轴为电导值。 此外, 图 11下半部的曲线群绘示压力感测元件 132在不同的稳压气嚢层 110的压力下,承 受不同重量时的电阻值的倒数(1/R ), 而上半部的曲线群绘示压力感测元件 132 在不同的稳压气嚢层 110的压力下, 承受不同重量以及未承受重量时的电阻值的 差值倒数(1/AR )。
由此可知, 压力感测元件 132可通过调整稳压气嚢层 110的气压而调整其感 测特性。 当稳压气嚢层 110的气压固定之后, 由于未承受压力的均压气嚢层 120 所提供给压力感测层 130的重量也固定, 故压力感测元件 132的起始电阻值与感 测特性也因而固定(其感测特性例如图 11的其中一条曲线)。 因此, 在均压气嚢 层 120未承受额外压力之前, 各压力感测元件 132的电阻值相同。 当均压气嚢层 120的多个部位^ ^受压力时, 对应于 受压力的那些部位的压力感测元件 132在 固定的感测特性下依据所承受的压力值而改变其电阻值, 并通过量测各压力感测 元件 132的电阻值变化而得知承受压力的部位的位置与其重量, 并将此结果传送 至图 9的控制装置 14的压力感测电路 14a与可视化界面 16, 以判定均压气嚢层 120上的压力集中点。
另外, 由于压力感测元件 132会受到正向力 (重量) 的影响而改变电阻值, 因此压力感测元件 132除了可以通过电阻值变化来感测压力集中的位置之外, 还 可以用以量测总重量, 例如是量测病人的体重。 量测方式例如是使用者(病人) 躺在气垫装置 10的均压气嚢层 120上,以使各个压力感测元件 132经由承受压力 而改变电阻值, 并通过电阻值变化而得知各压力感测元件 132所对应的均压气嚢 层 120的部位所承受的重量, 而对应于每一电阻值差值而得的重量的总和即为使
用者的重量。
图 12是图 3的压力感测气嚢模块的局部放大剖视图。 请参考图 12, 在本实 施例中, 压力感测气嚢模块 100还包括多个辅助侦测片 180。 辅助侦测片 180配 置于对应的第一筒状气嚢 122 的底部 122a与对应的第二筒状气嚢 124 的底部 124a。 具体来说, 辅助侦测片 180配置于压力感测元件 132与对应的第一筒状气 嚢 122的底部 122a之间, 或者配置于压力感测元件 132与对应的第二筒状气嚢 124的底部 124a,用以辅助压力感测元件 132感测均压气嚢层 120所承受的压力, 例如是使均压气嚢层 120的所承受的压力通过接触第一筒状气嚢 122与第二筒状 气嚢 124的辅助侦测片 180准确地传递至压力感测元件 132。 辅助侦测片 180可 以配置于压力感测元件 132上, 也可直接制作于第一筒状气嚢 122的底部 122a 与对应的第二筒状气嚢 124的底部 124a, 本发明不限制辅助侦测片 180的制作方 式。
图 13是图 3的压力感测气嚢模块的控制电路示意图。 请参考图 4、 图 5与图 13 , 在本实施例中, 气垫装置 10包括充气模块 18。 充气模块 18连接均压气嚢层 120与控制模块 14。在控制模块 14接收压力感测层 130的感测结果之后,控制模 块 14依据压力感测层 130的感测结果而控制充气模块 18,以通过充气模块 18调 整均压气嚢层 120的气压。 充气模块 18连接第一气管 150、 第二气管 160与第三 气管 170, 而控制模块 14能控制充气模块 18对第一气管 150、第二气管 160与第 三气管 170进行充气或放气,并控制第一气阀 152、第二气阀 162与第三气阀 172 开启或关闭。
在本实施例中, 充气模块 18经由第三气管 170与第三气阀 172而调整稳压 气嚢层 110的气压, 进而固定压力感测层 130的感测特性。 当均压气嚢层 120的 部位承受压力, 例如是使用者躺在均压气嚢层 120上时, 压力感测层 130通过压 力感测元件 132感测承受压力的那些部位的位置与压力值, 并经由图 9的压力感 测电路 14a将感测结果传送到可视化界面 16, 以清楚得知均压气嚢层 120的压力 集中点的位置与压力值。控制模块 14依据压力感测层 130的感测结果而控制充气 模块 18, 包括控制对应于承受压力的部位的第一筒状气嚢 122或者第二筒状气嚢 124所连接的第一气阀 152或第二气阀 162,以使对应的第一气阀 152或第二气阀 162开启。 因此, 充气模块 18经由第一气管 150或第二气管 160对承受压力的第 一筒状气嚢 122或者第二筒状气嚢 124进行充气或放气, 以调整均压气嚢层 120 承受压力的那些部位所对应的第一筒状气嚢 122或者第二筒状气嚢 124的气压,
使得均压气嚢层 120的那些部位所 7 受的压力因而分散。据此,气垫装置 10具有 较佳的舒适感。
图 14是图 3的压力感测气嚢模块的压力感测示意图。 图 15绘示图 14的压 力感测气嚢模块的承重感测流程图。 图 14绘示压力感测气嚢模块 100承受重量 W并通过压力感测层 130感测压力值的示意图,其中压力感测层 130仅以对应于 均压气嚢层 120的部分第二筒状气嚢 124的压力感测元件 132与其量测结果为例。 请参考图 14与图 15, 在本实施例中, 以经由气垫装置 10感测承重的承重感测方 法包括下列步骤。 首先, 通过压力感测气嚢模块 100承受重量\¥。 接着, 增加稳 压气嚢层 110的压力, 以将稳压气嚢层 110固定于较高的压力值, 例如是压力值 大于 1 ( PSI )。 当稳压气嚢层 110处于固定的压力值时, 通过压力感测气嚢模块 100的压力感测层 130量测各点承受的压力值, 如同图 14的输出结果, 以经由累 加各点的压力值而得到压力总和。
之后, 经由图 13的控制模块 14控制稳压气嚢层 110释压, 并在释压过程中 相隔每一间隔参数进行量测。 在本实施例中, 承重感测方法量测的参数为稳压气 嚢层 110的释压值, 而间隔参数为稳压气嚢层 110进行释压的一间隔压力。 本实 施例的气垫装置 10相隔每一间隔压力即进行一次量测, 例如是稳压气嚢层 110 每释压 0.3 ( PSI ) 即以压力感测层 130量测当时的压力总和。 上述的间隔压力不 限定于 0.3 ( PSI ), 此处仅是用以举例说明, 而间隔压力的数值愈小, 所得的曲线 也越准确。 如此反复量测每间隔压力的压力总和, 便可以得到在承受固定重量 W 的情况下, 压力感测层 130所量测的压力总和对应于稳压气嚢层 110的压力的曲 线图, 如图 15所示。
图 16绘示图 15的压力感测结果的曲线图。 请参考图 14至图 16, 其中图 16 绘示压力感测器嚢模块 100在^受不同重量的情况下, 稳压气嚢层 110的压力对 应于压力感测层 130所量测的压力总和的多条曲线。 因此, 图 16可视为是预先利 用压力感测器嚢模块 100在承受不同重量的情况下, 经由上述量测方法量测压力 总和而计算重量所构成的数据库。从图 16的多条曲线可以看出压力感测器嚢模块
100在^受不同重量的情况下, 稳压气嚢层 110的压力以及压力感测层 130在稳 压气嚢层 110释压过程中所量测的压力总和的曲线不同。 因此,将图 15所量测的 曲线对应于图 16的数据库(图 15的曲线以虚线绘示 ) , 可以经由图 16的数据库 推估图 15的曲线所对应的重量 W。 举例而言, 经由上述的量测方法所得的曲线 落在图 16的数据库的两条曲线之间, 而两条曲线分别代表压力感测气嚢模块 100
在承受重量为 15公斤的情况下以及承受重量为 25公斤的情况下的曲线, 故可推 估重量 W约为 20公斤。
图 17绘示图 14的压力感测气嚢模块的另一承重感测流程图。 同样地, 在本 实施例中, 图 14的压力感测气嚢模块 100的压力感测示意图也可通过图 17的承 重感测流程量测重量,其中图 15的承重感测流程的参数为稳压气嚢层 110释压的 间隔压力, 而图 17的承重感测流程的参数为稳压气嚢层 110的释压时间。 因此, 图 17的承重感测流程是以每一间隔时间作为进行量测的依据。 请参考图 14与图 17, 在本实施例中, 以经由气垫装置 10感测^重的^重感测方法包括下列步骤。 首先, 通过压力感测气嚢模块 100承受重量\¥。 接着, 增加稳压气嚢层 110的压 力并固定于较高的压力值, 例如是压力值大于 1 ( PSI ), 并且通过压力感测气嚢 模块 100经由压力感测层 130量测压力值, 以经由累加压力值而得到压力总和。
之后, 经由图 13的控制模块 14控制稳压气嚢层 110释压, 并在释压过程中 相隔每一间隔参数进行量测,其中本实施例的参数为稳压气嚢层 110的释压时间, 而间隔参数为稳压气嚢层 110进行释压的一间隔时间。 因此, 本实施例的气垫装 置 10相隔每一间隔时间即进行一次量测,例如是稳压气嚢层 110每释压 1秒即量 测当时的压力总和。 上述的间隔时间不限定于 1秒, 而间隔时间的数值愈小, 所 得的曲线也越准确。 如此反复量测每间隔时间的压力总和, 便可以得到在承受固 定重量 W的情况下, 压力感测层 130所量测的压力总和对应于稳压气嚢层 110 的释压时间的曲线图, 如图 17所示。
图 18绘示图 17的压力感测结果的曲线图。 请参考图 14、 图 17与图 18, 其 中图 18绘示压力感测器嚢模块 100在承受不同重量的情况下, 稳压气嚢层 110 的释压时间对应于压力感测层 130 所量测的压力总和的多条曲线。 因此, 图 18 可视为是预先利用压力感测器嚢模块 100在承受不同重量的情况下, 经由上述量 测方法量测压力总和而计算重量所构成的数据库。从图 18的多条曲线可以看出压 力感测器嚢模块 100在承受不同重量的情况下, 稳压气嚢层 110的释压时间以及 压力感测层 130在稳压气嚢层 110释压过程中所量测的压力总和的曲线不同。 因 此, 将图 17所量测的曲线对应于图 18的数据库(图 17的曲线以虚线绘示), 可 以经由图 18的数据库推估图 17的曲线所对应的重量 W。 举例而言, 经由上述的 量测方法所得的曲线落在图 16中代表 10公斤与 15公斤的曲线之间,故可推估重 量 W约为 12公斤。 据此, 压力感测气嚢模块 100可以通过上述的两种量测方法 量测其所承受的重量。
综上所述, 本发明的气垫装置包括压力感测气嚢模块, 而压力感测气嚢模块 包括稳压气嚢层 110、均压气嚢层 120与压力感测层 130,使得模块化的气垫装置 具有良好的组装性。 压力感测气嚢模块将均压气嚢层配置于稳压气嚢层上, 以通 过稳压气嚢层来提高稳定性,而压力感测层配置于稳压气嚢层与均压气嚢层之间, 用以感测均压气嚢层的多个部位所承受的压力,其中压力感测层连接可视化界面, 以显示压力感测层的感测结果。 另外, 气垫装置还包括控制模块与充气模块, 用 以依据压力感测层的感测结果来调整均压气嚢层中承受压力的那些部位的气压, 进而分散均压气嚢层所承受的压力而具有较佳的舒适度。 据此, 气垫装置具有良 好的组装性、 稳定性与舒适度。
虽然已结合以上实施例公开了本发明, 然而其并非用以限定本发明, 任何所 属技术领域中熟悉此技术者, 在不脱离本发明的精神和范围内, 可作些许的更动 与润饰, 故本发明的保护范围应以附上的权利要求所界定的为准。
Claims
1. 一种气垫装置, 包括:
至少一压力感测气嚢模块, 各该压力感测气嚢模块包括:
稳压气嚢层;
均压气嚢层, 配置于该稳压气嚢层上, 其中该均压气嚢层包括相互连 通的多个第一筒状气嚢以及相互连通的多个第二筒状气嚢, 该些第一筒状 气嚢以及该些第二筒状气嚢立于该稳压气嚢层上并且排列成一阵列; 以及 压力感测层, 配置于该稳压气嚢层与该均压气嚢层之间, 用以感测该 均压气嚢层的多个部位所^^受的压力。
2. 如权利要求 1所述的气垫装置,其中该些第一筒状气嚢分别排列成多个第 一排, 并且各该第一排的该些第一筒状气嚢互相连通, 该些第二筒状气嚢分别排 列成多个第二排, 并且各该第二排的该些第二筒状气嚢互相连通, 该些第一排与 该些第二排交替排列。
3. 如权利要求 2 所述的气垫装置, 其中该压力感测气嚢模块还包括多条束 带, 排列成该些第一排的该些第一筒状气嚢与排列成该些第二排的该些第二筒状 气嚢分别配置于对应的该些束带上, 并通过该些束带固定于该稳压气嚢层上。
4. 如权利要求 2所述的气垫装置,其中该压力感测气嚢模块还包括一第一气 管与一第二气管, 该第一气管连接排列成该些第一排的该些第一筒状气嚢, 而该 第二气管连接排列成该些第二排的该些第二筒状气嚢。
5. 如权利要求 4所述的气垫装置,其中排列在该些第一排最外侧的该些第一 筒状气嚢与排列在该些第二排最外侧的该些第二筒状气嚢的长度比其余的该些第 一筒状气嚢与该些第二筒状气嚢的长度长, 其余的该些第一筒状气嚢与该些第二 筒状气嚢立于该稳压气嚢层的一顶面上, 而排列在该些第一排最外侧的该些第一 筒状气嚢与排列在该些第二排最外侧的该些第二筒状气嚢延伸至该稳压气嚢层的 一侧面。
6. 如权利要求 5所述的气垫装置,其中排列在该些第一排与该些第二排最外 侧的该些第一筒状气嚢与该些第二筒状气嚢的底部与该稳压气嚢层的部分该侧面 形成一容置空间, 该第一气管与该第二气管容置于该容置空间内。
7. 如权利要求 6所述的气垫装置,其中该压力感测气嚢模块还包括一第三气
管, 连接该稳压气嚢层, 且该第三气管容置于该容置空间内。
8. 如权利要求 1所述的气垫装置,其中该稳压气嚢层包括至少一支带,配置 于该稳压气嚢层内并连接该稳压气嚢层的一上壁与一下壁。
9. 如权利要求 1 所述的气垫装置, 其中该压力感测层包括多个压力感测元 件, 配置于对应的该些第一筒状气嚢以及对应的该些第二筒状气嚢的底部与该稳 压气嚢层之间。
10. 如权利要求 1所述的气垫装置, 其中该压力感测气嚢模块还包括多个辅 助侦测片, 配置于对应的该些第一筒状气嚢与对应的该些第二筒状气嚢的底部。
11. 如权利要求 1所述的气垫装置, 还包括:
防倾模块, 环绕该压力感测气嚢模块。
12. 如权利要求 11所述的气垫装置,其中该至少一压力感测气嚢模块包括多 个压力感测气嚢模块, 且该些压力感测气嚢模块排列成阵列, 而该防倾模块环绕 排列成阵列的该些压力感测气嚢模块。
13. 如权利要求 11所述的气垫装置, 其中该防倾模块为一防倾气嚢。
14. 如权利要求 11所述的气垫装置,其中该防倾模块的高度大于该压力感测 气嚢模块的高度。
15. 如权利要求 1所述的气垫装置, 还包括:
控制模块, 连接该压力感测层, 其中该压力感测层感测该均压气嚢层的该些 部位所承受的压力, 而该控制模块接收该压力感测层的一感测结果。
16. 如权利要求 15所述的气垫装置, 还包括:
充气模块, 连接该均压气嚢层与该控制模块, 其中该控制模块依据该压力感 测层的该感测结果而控制该充气模块, 以通过该充气模块调整该均压气嚢层的气 压。
17. 如权利要求 15所述的气垫装置, 还包括:
可视化界面, 连接该控制模块, 用以显示该控制模块所接收的该压力感测层 的感测结果。
18. 一种承重感测方法, 用以经由一气垫装置感测承重, 该气垫装置包括至 少一压力感测气嚢模块, 各该压力感测气嚢模块包括一稳压气嚢层、 一均压气嚢 层以及一压力感测层, 该均压气嚢层配置于该稳压气嚢层上, 其中该均压气嚢层 包括相互连通的多个第一筒状气嚢以及相互连通的多个第二筒状气嚢, 该些第一 筒状气嚢以及该些第二筒状气嚢立于该稳压气嚢层上并且排列成一阵列, 该压力
感测层配置于该稳压气嚢层与该均压气嚢层之间, 用以感测该均压气嚢层的多个 部位所承受的压力, 该承重感测方法包括:
通过该压力感测气嚢模块承受一重量;
增加该稳压气嚢层的压力, 并且通过该压力感测气嚢模块量测压力总和; 控制该稳压气嚢层释压;
相隔每一间隔参数进行量测;
量测每一间隔参数的压力总和; 以及
得到该压力感测层的压力总和对应于该稳压气嚢层的一参数的曲线图。
19. 如权利要求 18所述的承重感测方法,其中该参数为该稳压气嚢层的一释 压值, 而该间隔参数为一间隔压力。
20. 如权利要求 18所述的承重感测方法,其中该参数为该稳压气嚢层的一释 压时间, 而该间隔参数为一间隔时间。
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Families Citing this family (1)
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000189472A (ja) * | 1998-10-22 | 2000-07-11 | Denso Corp | 床ずれ防止装置 |
| TWM248433U (en) * | 2003-12-22 | 2004-11-01 | Ind Tech Res Inst | Air mattress |
| CN201026282Y (zh) * | 2006-10-20 | 2008-02-27 | 张继道 | 一种防治褥疮气囊床垫 |
| EP2258330A1 (en) * | 2009-06-05 | 2010-12-08 | Hill-Rom Industries SA | Pressure sensor capacitive cell and support device |
| CN201870925U (zh) * | 2010-12-02 | 2011-06-22 | 无锡尚瑞德医疗器械有限公司 | 双层脉冲气循环防褥疮坐垫 |
| CN102160837A (zh) * | 2011-03-02 | 2011-08-24 | 江南大学 | 交变式充气防褥疮床垫 |
| CN102283755A (zh) * | 2011-07-13 | 2011-12-21 | 内蒙古大学 | 一种智能褥疮防治系统 |
| CN202526453U (zh) * | 2012-01-16 | 2012-11-14 | 广东粤华医疗器械厂有限公司 | 气压自控式褥疮防治床垫 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201349812Y (zh) * | 2009-02-16 | 2009-11-25 | 金德民 | 一种新型数字床垫 |
| JP5468928B2 (ja) * | 2010-02-05 | 2014-04-09 | パラマウントベッド株式会社 | エアマットレス |
| TWM435923U (en) * | 2012-04-27 | 2012-08-21 | Caremed Supply Inc | Air cushion bed sensing device |
-
2013
- 2013-04-22 TW TW102114204A patent/TWI551244B/zh active
- 2013-05-06 WO PCT/CN2013/000529 patent/WO2014101253A1/zh not_active Ceased
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000189472A (ja) * | 1998-10-22 | 2000-07-11 | Denso Corp | 床ずれ防止装置 |
| TWM248433U (en) * | 2003-12-22 | 2004-11-01 | Ind Tech Res Inst | Air mattress |
| CN201026282Y (zh) * | 2006-10-20 | 2008-02-27 | 张继道 | 一种防治褥疮气囊床垫 |
| EP2258330A1 (en) * | 2009-06-05 | 2010-12-08 | Hill-Rom Industries SA | Pressure sensor capacitive cell and support device |
| CN201870925U (zh) * | 2010-12-02 | 2011-06-22 | 无锡尚瑞德医疗器械有限公司 | 双层脉冲气循环防褥疮坐垫 |
| CN102160837A (zh) * | 2011-03-02 | 2011-08-24 | 江南大学 | 交变式充气防褥疮床垫 |
| CN102283755A (zh) * | 2011-07-13 | 2011-12-21 | 内蒙古大学 | 一种智能褥疮防治系统 |
| CN202526453U (zh) * | 2012-01-16 | 2012-11-14 | 广东粤华医疗器械厂有限公司 | 气压自控式褥疮防治床垫 |
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| CN113647936A (zh) * | 2021-08-03 | 2021-11-16 | 南京伟思医疗科技股份有限公司 | 一种用于盆底磁刺激治疗设备的坐姿检测方法及检测系统 |
| CN113647936B (zh) * | 2021-08-03 | 2022-07-22 | 南京伟思医疗科技股份有限公司 | 一种用于盆底磁刺激治疗设备的坐姿检测方法及检测系统 |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI551244B (zh) | 2016-10-01 |
| TW201424639A (zh) | 2014-07-01 |
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