An automatically temperature-regulated smart mattress

Abstract

The application relates to the technical field of intelligent mattresses, and discloses an automatic temperature-regulating intelligent mattress, which comprises a main unit, the main unit is provided with at least a cladding layer, a heat-conducting composite component for conducting the temperature of a human body surface, a support and isolation component for isolating electromagnetic interference and providing support, a sensing and temperature-measuring unit and a master control unit; the heat-conducting composite structure and the elastic buffering structure are matched with each other, the temperature value hysteresis and fluctuation are reduced, the layered wiring structure is adopted by using the wave flexible circuit, the stability of temperature-measuring data and human body sensing data is ensured, the problems of false starting and false closing of the temperature control system are effectively reduced through the detection of the upper and lower double-layer sensing cooperation, the double-layer electromagnetic isolation structure can further reduce the system misjudgment probability, the flexible circuit is designed as a wave stretchable shape as a whole, the problem of fracture of the flexible circuit caused by long-term extrusion and pulling is effectively avoided, and the service life of the whole sensing module is prolonged.

Description

Technical Field

[0001] This invention relates to the field of smart mattress technology, specifically to a smart mattress with automatic temperature regulation. Background Technology

[0002] Mattresses are the core bedding for daily sleep. To improve sleep comfort, smart mattresses with automatic temperature control functions are gradually being introduced into the market. These mattresses generally have temperature sensors and electric or water-heated temperature-regulating layers installed inside the mattress layers. The sensors collect the internal temperature values ​​of the mattress, and the control module drives the temperature-regulating layer to heat up or cool down, thereby achieving automatic temperature regulation of the bed and improving the warm sleep experience. However, the temperature sensing structure of most mattresses is mostly laid flat in the mattress layer, separated from the human body by multiple layers of insulation pads such as foam and fabric. The heat from the human body surface needs to penetrate through multiple media to be transferred to the sensor, and air insulation layers are easily formed in the middle. The heat conduction path is long and the thermal inertia is large, resulting in obvious temperature measurement lag of the sensor. At the same time, when the human body turns over or the mattress sinks under pressure, the sensor plate is easy to separate from the upper heat-conducting fabric, interrupting heat conduction and causing frequent and distorted temperature values. In addition, the heating layer inside the mattress generates electromagnetic noise when it is working, which directly interferes with the sensor's signal acquisition and further amplifies the temperature measurement error. It is impossible to capture the true human body surface temperature in real time and accurately. Temperature control adjustment has problems such as delay and large temperature difference. In addition, when thick blankets, pillows or other inanimate weights are placed on the mattress surface, the weight will change the capacitance value around the electrodes or generate pressure signals. The control system may mistakenly identify it as a human lying down and continue to maintain heating and cooling, which wastes energy and seriously affects the temperature comfort of sleep. Summary of the Invention

[0003] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides an intelligent mattress with automatic temperature regulation. It features fast temperature response, high temperature accuracy, precise human body recognition to prevent temperature control misjudgments, durable and interference-resistant circuitry, and waterproof, zoned constant temperature control. It solves the problems of traditional intelligent mattresses, such as temperature measurement lag and distortion, accidental temperature control due to heavy bedding, easy circuit breakage, and inaccurate temperature regulation due to electromagnetic and moisture interference.

[0004] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: an intelligent mattress with automatic temperature regulation, comprising: The main body unit has at least a covering layer, a thermally conductive composite component for conducting human body surface temperature, and a support and isolation component for isolating electromagnetic interference and providing support. The temperature sensing unit includes at least a temperature acquisition component for acquiring temperature and preprocessing sensing signals, an elastic buffer component for elastic support circuitry and buffering deformation stress, and a proximity composite sensing component for double-layer electric field detection and distinguishing between human body and heavy object. The main control unit has at least a shielding and protection component for shielding noise and sealing the protection circuit, and a signal acquisition component for summarizing and processing temperature sensing and human body recognition signals. When the top of the covering layer is pressed by a human body lying down, the thermally conductive composite component transfers the body surface temperature to the temperature sensing and acquisition component through the covering layer. The elastic buffer component lifts the temperature sensing and acquisition component upward to ensure continuous contact. The proximity composite sensing component and the elastic buffer component work together to collect the dual-layer sensing signal and transmit the temperature signal and the human body sensing signal synchronously to the signal acquisition component. The signal acquisition component verifies the signals and outputs a temperature control adjustment command.

[0005] Preferably, the thermally conductive composite component includes: The thermally conductive composite layer is fixedly connected to the bottom of the covering layer at the top, and multiple sets of thermally conductive protrusions are fixedly connected to the bottom in an array. When the thermally conductive composite layer bears the pressure of the human body, the thermally conductive protrusions press tightly against the temperature measurement and acquisition component and quickly transfer the human body surface temperature to the temperature measurement and acquisition component.

[0006] Preferably, the supporting isolation component includes: Electromagnetic shielding nonwoven fabric is placed below the elastic buffer assembly to isolate electromagnetic interference from the lower layer; The zoned temperature control layer is fixedly connected to the bottom of the electromagnetic isolation non-woven fabric and is zoned to correspond to each sensing area of ​​the mattress. The support filling layer is fixedly connected to the bottom of the zoned temperature control layer to provide basic support for the mattress; Sound-absorbing cushioning cotton is fixedly connected to the bottom surface of the support filling layer to absorb vibrations of the support structure; The base is made of non-slip non-woven fabric and is fixedly connected to the bottom of the sound insulation and cushioning cotton. When the partitioned temperature control layer receives the temperature collected by the temperature measurement and acquisition component, it synchronously starts the temperature adjustment operation. The electromagnetic isolation non-woven fabric isolates the electromagnetic noise generated by the operation of the partitioned temperature control layer, so as to avoid interfering with the upper temperature and the accuracy of human body induction detection.

[0007] Preferably, the temperature measurement and acquisition component includes: The signal acquisition auxiliary board is located below the thermally conductive composite layer; The wave-shaped flexible circuit board is fixedly connected to the signal output end of the signal acquisition auxiliary board at its side end, and the two are electrically connected. A long strip of flexible temperature measuring film is integrally attached to the side, and the interior is layered with independent temperature measuring trace layer and sensing trace layer. When the long flexible temperature-sensing film of the wave-shaped flexible circuit board collects the body surface temperature, the temperature and the sensing signal are transmitted independently to the signal acquisition auxiliary board along the layered traces.

[0008] Preferably, the top of the wave-shaped flexible circuit board is fixedly connected with multiple sets of metal micro-protrusion thermally conductive contacts corresponding to the thermally conductive protrusions; When the thermally conductive protrusion is pressed down to fit the metal micro-protrusion thermally conductive contact, the temperature signal is transmitted to the signal acquisition auxiliary board for preprocessing via the layered wiring of the corrugated flexible circuit board.

[0009] Preferably, the elastic buffer component includes: A buffer pad is placed below the temperature measurement and acquisition component; The proximity sensing metal grid is wavy and fixed to the inner wall of the buffer pad, and its movement is synchronized with the wavy flexible circuit board. When the proximity sensing metal grid is subjected to the deformation of the wave flexible circuit board, the proximity sensing metal grid deforms synchronously, maintaining the integrity of the double-layer induced electric field without breakage.

[0010] Preferably, the inner wall of the buffer pad is provided with multiple sets of fixing holes, and the inner wall of the fixing holes is fixedly connected with elastic support columns, and the top of the elastic support columns abuts against the crest and trough of the corrugated flexible circuit board. When the buffer pad is compressed and deformed downwards by human body pressure, the elastic support column continuously pushes the wave-shaped flexible circuit board upwards to prevent the circuit from sinking and separating the heat-conducting contacts, thus preventing the temperature measurement gap from being generated.

[0011] Preferably, the proximity composite sensing component includes: The flexible suspension wire is electrically connected at one end to the sensing output terminal of the corrugated flexible circuit board, and the other end is fixedly connected to a flexible capacitive sensing electrode and electrically connected to the flexible capacitive sensing electrode. The surface of the flexible capacitive sensing electrode is covered with an insulating silicone isolation layer. The metal proximity sensing spring is fixedly connected at one end to the flexible capacitive sensing electrode on the side away from the elastic suspension wire, and its surface is fully covered with an insulating silicone protective film. When the metal proximity sensing spring is pressed down and adheres to the human body by the mattress, it forms a double-layer induced electric field with the proximity sensing metal grid below, which distinguishes between the human body, bedding, and static heavy objects, and eliminates temperature control misjudgment.

[0012] Preferably, the shielding and protection component includes: The shielding cover is fixedly connected at the top to the bottom of the anti-slip non-woven fabric base. The main control compartment is fixedly connected to the bottom of the shielding cover at the top, and is used to store and protect the signal acquisition components. The wire harness is sealed in the inlet compartment and fixedly connected to the bottom of the main control compartment at the top. When the shielding cover closes the main control compartment, it can be used to isolate electromagnetic noise generated by the heating layer inside the mattress and external equipment. The wire harness sealing compartment is used to prevent moisture from entering the compartment and damaging circuit components.

[0013] Preferably, the signal acquisition component includes: The PCB substrate is fixedly connected to the inner wall of the main control compartment and electrically connected to the signal acquisition auxiliary board through an integrated wiring harness. It also has onboard hardware temperature compensation circuit and dual-signal hardware verification circuit. A data acquisition probe is fixedly inserted through the main control compartment and extends to the outside of the mattress to collect ambient reference temperature. When the PCB substrate synchronously receives the temperature signal and the dual-layer proximity sensing signal, the hardware temperature compensation circuit corrects the temperature drift, and the dual-signal hardware verification circuit determines whether there is a person and outputs the corresponding temperature control adjustment command.

[0014] (III) Beneficial Effects Compared with the prior art, the present invention provides an intelligent mattress with automatic temperature regulation, which has the following beneficial effects: 1. This intelligent mattress with automatic temperature regulation utilizes a combination of a thermally conductive composite structure and an elastic cushioning structure. The bottom of the thermally conductive layer features an array of thermally conductive protrusions. When a person lies down and is under pressure, these protrusions closely contact the temperature sensing contacts. Simultaneously, the elastic support within the cushioning structure continuously lifts the flexible circuitry, preventing separation and the formation of an air-insulated interlayer. This significantly shortens the heat transfer path, eliminates heat transfer gaps, accelerates temperature acquisition response, reduces temperature lag and fluctuations, and continuously improves temperature detection accuracy. Furthermore, the wave-shaped flexible circuitry employs a layered wiring structure, separately dividing the temperature sensing and sensing lines. An insulating medium separates the temperature and sensing signals, achieving physical signal isolation and effectively preventing crosstalk between different signals, reducing noise interference, and ensuring the stability of temperature and human body sensing data.

[0015] 2. Through the detection of dual-layer sensors, the upper layer's tilting sensor spring and the lower layer's wave-shaped metal grid together form a dual-layer coupled electric field. Combined with the dual-signal hardware verification logic on the main control board, the mattress is only considered to be occupied when both valid human body temperature and dual-layer synchronous sensing signals are simultaneously collected. This clearly distinguishes between inanimate objects such as human bodies and thick blankets, effectively reducing the problem of false start-up and false shutdown of the temperature control system, reducing energy waste, and continuously improving the sleep temperature control experience. In addition, the dual-layer electromagnetic barrier structure lays electromagnetic isolation fabric at the bottom of the sensing module to isolate electromagnetic noise generated by the temperature regulating layer below. The side control compartment is equipped with a metal shielding cover to block electromagnetic interference from external electrical appliances. The dual shielding system avoids temperature drift and sensing signal distortion caused by electromagnetic noise, allowing the mattress to maintain stable detection results even after long-term use, further reducing the probability of system misjudgment.

[0016] 3. The flexible circuit is designed with a wave-like expansion and contraction shape, and the matching buffer groove deforms synchronously. When the mattress is compressed or the body turns over, the wave structure can release the tensile stress of the circuit. Together with the elastic support, it can share the bending load, effectively avoiding the problem of breakage caused by long-term compression and pulling of the flexible circuit, extending the service life of the entire sensing module and reducing the cost of mattress repair in the later stage. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 This is the front view of the present invention.

[0019] Figure 3 This is a cross-sectional view of the overall structure of the present invention.

[0020] Figure 4 This is an exploded view of the overall structure of the present invention.

[0021] Figure 5 This is a schematic diagram of the structure of the coating layer and thermally conductive composite component of the present invention.

[0022] Figure 6 This is a schematic diagram of the thermally conductive composite component and the temperature measurement and acquisition component of the present invention.

[0023] Figure 7 This is a schematic diagram of the temperature measurement and acquisition component and the elastic buffer component of the present invention.

[0024] Figure 8 For the present invention Figure 7 An enlarged schematic diagram of the structure at point A.

[0025] Figure 9 This is a schematic diagram of the elastic buffer component and the support isolation component of the present invention.

[0026] Figure 10 This is an exploded view of the support isolation component of the present invention.

[0027] Figure 11 This is a schematic diagram of the main control unit structure of the present invention.

[0028] Figure 12 For the present invention Figure 11 Enlarged schematic diagram of the structure at point B.

[0029] In the diagram: 1. Main unit; 11. Covering layer; 12. Thermally conductive composite component; 121. Thermally conductive composite layer; 122. Thermally conductive protrusion; 13. Support and isolation component; 131. Electromagnetic isolation non-woven fabric; 132. Zoned temperature control layer; 133. Support and filling layer; 134. Sound insulation and cushioning cotton; 135. Base anti-slip non-woven fabric; 2. Temperature sensing unit; 21. Temperature acquisition component; 211. Signal acquisition auxiliary board; 212. Corrugated flexible circuit board; 213. Metal micro-convex thermally conductive contact; 22. Elastic buffer component; 221. Buffer pad; 222. Proximity sensing metal grid; 223. Fixing hole; 224. Elastic support column; 23. Proximity composite sensing component; 231. Elastic suspension wire; 232. Flexible capacitive sensing electrode; 233. Metal proximity sensing spring; 3. Main control unit; 31. Shielding and protection components; 311. Shielding cover plate; 312. Main control compartment; 313. Wiring harness sealed inlet compartment; 32. Signal acquisition components; 321. PCB substrate; 322. Acquisition probe. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] In the description of this invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0032] In addition, a fixed connection refers to a connection in which parts or components are fixed and there is no relative movement; a transmission connection refers to a connection in which mechanical motion or torque is transmitted to other working parts through a transmission component; a sliding connection refers to a connection in which two objects are in contact but not fixed and can slide relative to each other; and a rotational connection refers to a connection in which two objects are in contact but not fixed and can rotate relative to each other.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0034] Example 1: This embodiment provides an intelligent mattress with automatic temperature regulation, which has the following technical features.

[0035] Please see Figure 1-12 The covering layer 11 is made of waterproof and breathable knitted fabric with micron-sized breathable micropores. The inner side of the fabric is composited with a hydrophobic and breathable film. The covering layer 11 is wrapped around the upper surface of the heat-conducting composite component 12 by sewing and binding around the edges. It can block human sweat and moisture from penetrating downwards, while not blocking the penetration of heat and induced electric field. The thermally conductive composite component 12 includes a thermally conductive composite layer 121 and thermally conductive protrusions 122. The thermally conductive composite layer 121 is made of high thermal conductivity polyester fiber cotton cut and molded. The upper surface of the thermally conductive composite layer 121 is bonded and fixed to the bottom of the covering layer 11 with high temperature resistant hot melt adhesive. The lower surface of the thermally conductive composite layer 121 is integrally injection molded with an array of thermally conductive protrusions 122. The thermally conductive protrusions 122 are made of high thermal conductivity soft silicone. All the thermally conductive protrusions 122 are vertically downward and correspond one-to-one with the metal micro-protrusion thermally conductive contacts 213. When the covering layer 11 bears the pressure load of the human body lying down, the thermally conductive composite layer 121 is concave with the mattress, and the thermally conductive protrusions 122 are tightly attached to the metal micro-protrusion thermally conductive contacts 213 downwards, eliminating the air insulation layer between the two, and the body surface heat can be quickly transferred to the temperature measurement and acquisition component 21. The temperature measurement and acquisition component 21 includes a signal acquisition auxiliary board 211, a wave-shaped flexible circuit board 212, and metal micro-convex thermal conductive contacts 213. The signal acquisition auxiliary board 211 is arranged at the side lead-out end of the entire wave-shaped flexible circuit board 212 mattress. The signal acquisition auxiliary board 211 is electrically connected to the signal output end of the wave-shaped flexible circuit board 212 through a BTB board-to-board connector. The substrate of the wave-shaped flexible circuit board 212 is a PI flexible copper-clad laminate, and the board body is processed into a continuous wave-shaped telescopic design. The side of the wave-shaped flexible circuit board 212 is fixed with long strips of flexible material using insulating double-sided adhesive. The temperature-sensing film and the corrugated flexible circuit board 212 adopt a layered wiring process, with a separate independent temperature-sensing wiring layer and a sensing wiring layer. An insulating medium is set between the two wiring layers to prevent crosstalk. Metal micro-protrusion thermal conductive contacts 213 are electroplated on the upper surface of the corrugated flexible circuit board 212. The contact array is completely aligned with the thermal conductive protrusions 122. After the human body heat is transferred to the metal micro-protrusion thermal conductive contacts 213 through the thermal conductive protrusions 122, the temperature signal is transmitted to the signal acquisition auxiliary board 211 through the independent temperature-sensing wiring layer to complete the pre-amplification processing. The elastic buffer assembly 22 is located directly below the temperature acquisition assembly 21. The elastic buffer assembly 22 includes a buffer pad 221, a proximity sensing metal grid 222, fixing holes 223, and elastic support columns 224. The buffer pad 221 is made of high-resilience polyurethane foam and is integrally molded. A wave-shaped receiving groove is opened on the buffer pad 221. The proximity sensing metal grid 222 is made of beryllium copper elastic thin metal sheet and is integrally stamped into a wave shape that matches the wave flexible circuit board 212. It is attached and fixed to the bottom of the receiving groove of the buffer pad 221 by high-temperature resistant double-sided adhesive. Multiple sets of fixing holes 223 are opened in the buffer pad 221. The elastic support column 224 is integrally injection molded in the fixing holes 223. The elastic support column 224 is a silicone cylindrical structure. The top of the elastic support column 224 vertically abuts against the weak bending points of the wave crest and trough of the wave flexible circuit board 212. When the buffer pad 221 is compressed and deformed downward by human body pressure, the elastic support column 224 continuously pushes the wave flexible circuit board 212 upward to prevent the circuit board from sinking and causing the metal micro-protrusion heat-conducting contact 213 to separate from the heat-conducting protrusion 122, ensuring that the temperature measurement contact remains tight. The supporting isolation component 13 consists of electromagnetic isolation nonwoven fabric 131, zoned temperature control layer 132, supporting filling layer 133, sound insulation cushioning cotton 134, and base anti-slip nonwoven fabric 135, which are sequentially bonded and stacked from top to bottom. The electromagnetic isolation nonwoven fabric 131 is blended with ultra-fine metal shielding fibers and is laid flat and bonded to the bottom of the cushioning pad 221 to isolate electromagnetic noise generated by the underlying circuit. The zoned temperature control layer 132 is a segmented carbon fiber flexible heating film. Each temperature control zone of the zoned temperature control layer 132 is connected to a single... Each of the wave-shaped flexible circuit boards 212 corresponds to a single one. The top surface of the zoned temperature control layer 132 is heat-fused to the underside of the electromagnetic isolation non-woven fabric 131. The support filling layer 133 uses high-elasticity sponge or independent pocket springs, which are bonded and fixed to the bottom surface of the zoned temperature control layer 132 to provide basic support for the mattress. The sound-insulating cushioning cotton 134 is bonded to the bottom of the support filling layer 133 to absorb the pressure and vibration of the mattress. The base anti-slip non-woven fabric 135 is sewn and wrapped around the bottom layer of the entire mattress to play a role in anti-slip and wear-resistant protection. When the partition temperature control layer 132 receives the human body temperature signal transmitted by the temperature acquisition component 21, it starts to heat up or cool down. The electromagnetic isolation non-woven fabric 131 can isolate the electromagnetic interference generated by the operation of the partition temperature control layer 132 and prevent the temperature detection value from drifting and becoming distorted. The shielding and protection component 31 and the signal acquisition component 32 are uniformly arranged on the side of the mattress. The shielding cover 311 is a galvanized metal shielding plate, which is installed on the top of the main control compartment 312 embedded in the side. The main control compartment 312 is a rigid ABS sealed shell. The side wall of the main control compartment 312 has through holes and is equipped with a wire harness sealed inlet compartment 313. The inside of the wire harness sealed inlet compartment 313 is filled with a waterproof rubber plug. The corrugated flexible circuit board 212 extends into the main control compartment 312 through the rubber plug via the connecting wire harness. The signal acquisition component 32 includes a PCB substrate 321 and an acquisition probe 322. The PCB substrate 321 is fixed to the inner wall of the main control compartment 312 by silicone shock-absorbing pads. A hardware temperature compensation circuit and a temperature signal amplification circuit are soldered on the PCB substrate 321. The PCB substrate 321 is electrically connected to the signal acquisition auxiliary board 211 through a multi-core shielded integrated wire harness. The acquisition probe 322 is an NTC thermistor temperature sensor. The wire passes through the wire harness sealed inlet compartment 313 and extends to the air environment outside the mattress to collect the reference temperature of the bedroom environment in real time. The hardware temperature compensation circuit built into the PCB substrate 321 can combine the reference data of the ambient temperature acquisition probe 322 to correct the temperature deviation caused by the temperature difference of the mattress layers and improve the temperature detection accuracy. All temperature signals are transmitted independently through layered wiring without sensor signal interference.

[0036] Example 2: This example is based on the basic structure of Example 1 and is optimized and improved. The basic stacking, materials and connection methods of the main unit 1, temperature acquisition component 21, elastic buffer component 22, shielding and protection component 31 and signal acquisition component 32 are consistent with those of Example 1. Only the proximity composite sensing component 23 and the built-in verification circuit of PCB substrate 321 are described in detail. The proximity composite sensing component 23 includes an elastic suspension wire 231, a flexible capacitive sensing electrode 232, and a metal proximity sensing spring 233. The elastic suspension wire 231 is a thin, soft copper wire with an insulated outer sheath. One end of the elastic suspension wire 231 is welded and fixed to the sensing output end reserved on the corrugated flexible circuit board 212, and the other end of the elastic suspension wire 231 is suspended and welded and fixed to the flexible capacitive sensing electrode 232 to achieve electrical connection. The flexible capacitive sensing electrode 232 is made of copper-plated PET flexible sheet cut and formed. The electrode 232 is coated with an insulating silicone layer to prevent direct contact between the electrode and the mattress foam, thus preventing signal drift. The metal proximity sensing spring 233 is made of a high-elasticity beryllium copper sheet, which is stamped to form an upward-curving structure. The base of the metal proximity sensing spring 233 is bonded and fixed to the side of the flexible capacitive sensing electrode 232 away from the elastic suspension wire 231. The outer surface of the metal proximity sensing spring 233 is fully covered with an insulating silicone protective film to prevent short circuits caused by direct contact between the metal and the fabric, while not hindering the outward radiation of the induced electric field. The metal proximity sensing spring 233 is positioned directly below the proximity sensing metal grid 222 inside the buffer pad 221. The two work together to form a double-layer spatial sensing electric field. When the metal proximity sensing spring 233 is pressed down by the mattress and adheres to the human body and clothing, the human body simultaneously forms a coupling capacitance with the upper metal proximity sensing spring 233 and the lower proximity sensing metal grid 222. The double-layer electrodes synchronously output effective sensing signals. If only a thick blanket or other static heavy object is used to cover the surface of the mattress, the distance between the heavy object and the two layers of metal sensing structure is large, and it is impossible to trigger the effective electric field signal of the two layers at the same time. The PCB substrate 321 adds a dual-signal hardware verification circuit on the basis of the original hardware temperature compensation circuit. The dual-signal hardware verification circuit synchronously receives the temperature data transmitted by the temperature acquisition component 21, the upper layer capacitive sensing signal output by the proximity composite sensing component 23, and the lower layer sensing signal output by the proximity sensing metal grid 222. Only when the circuit detects that the effective human body temperature value, the upper layer spring sensing signal, and the lower layer grid sensing signal are all synchronously up to standard will it determine that there is someone on the mattress and output the corresponding temperature control adjustment command. When the value of a single capacitor changes and there is no dual-layer synchronous sensing signal, the hardware circuit directly shields the judgment signal, eliminating the possibility of heavy objects or thick blankets causing the temperature control system to start or stop erroneously from the hardware level, effectively improving the accuracy of human body recognition and judgment. The wave-shaped flexible circuit board 212 adopts a wave-shaped telescopic wiring design. When the mattress is compressed or deformed by turning over, the wave shape can release tensile stress and will not pull or break the circuit. Combined with the bottom elastic support column 224 for continuous support, the temperature measuring contact and the sensing electrode always maintain a stable fit. Temperature and human body sensing signals are transmitted synchronously in real time without detection delay.

[0037] This embodiment provides an intelligent mattress with automatic temperature regulation, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0038] Working principle: When in use, when a human body lies down and presses the top surface of the covering layer 11, the heat from the human body surface is transferred through the covering layer 11 to the heat-conducting composite component 12. The heat-conducting composite layer 121 is pressed down and sinks. The array of heat-conducting protrusions 122 simultaneously press down on the metal micro-protrusion heat-conducting contacts 213. The two are tightly attached point-to-point, completely eliminating the air insulation layer, greatly shortening the heat transfer path and improving the temperature acquisition response speed. Next, heat is introduced through the metal micro-convex thermal contact 213 into the long strip flexible temperature measuring film attached to the side of the corrugated flexible circuit board 212. The corrugated flexible circuit board 212 has mutually isolated independent temperature measuring trace layer and sensing trace layer. The temperature signal and sensing signal are transmitted independently in layers, and no signal crosstalk will occur. It should be noted that the wave-shaped flexible circuit board 212 is housed entirely within the wave-shaped receiving groove of the cushioning pad 221. An elastic support column 224 is vertically installed in the fixing hole 223 within the groove of the cushioning pad 221. The top of the elastic support column 224 continuously abuts against the weak points of the wave crests and troughs of the wave-shaped flexible circuit board 212. When the mattress is compressed or the body deforms due to turning over, the cushioning pad 221 compresses and rebounds, and the elastic support column 224 continuously lifts the wave-shaped flexible circuit board 212 upwards, preventing the wave-shaped flexible circuit board 212 from sinking and causing the heat-conducting protrusion 122 to separate from the metal micro-protrusion heat-conducting contact 213. This maintains heat-conducting contact throughout, reducing the problems of temperature measurement interruptions and temperature value lag fluctuations, further improving the response efficiency and numerical stability of temperature detection. Furthermore, the bottom of the groove of the cushioning pad 221 is attached to the wave-shaped proximity sensing metal grid 222, which undulates and deforms synchronously with the cushioning pad 221, always maintaining the complete underlying induced electric field. Furthermore, the sensing output end on the side of the wave flexible circuit board 212 is connected to the elastic suspension wire 231, the elastic suspension wire 231 suspends the flexible capacitive sensing electrode 232 downward, the flexible capacitive sensing electrode 232 is fixed to the side with the tilted metal proximity sensing spring 233, the metal proximity sensing spring 233 tilts upward as a whole and does not make hard contact with the pad layer, and the surface is covered with an insulating silicone protective film. It should be noted that when a human body is close to the surface of the mattress, the raised metal proximity sensing spring 233 can capture the human body's capacitance signal at close range. This signal, together with the wave-shaped proximity sensing metal grid 222 below, forms a double-layer spatial sensing electric field. If only heavy objects such as thick blankets are placed, the distance between the object and the double-layer sensing structure is large, resulting in only a weak single-layer capacitance change. This cannot simultaneously trigger the two sets of effective sensing signals from the upper metal proximity sensing spring 233 and the lower proximity sensing metal grid 222. Only when a human body is lying close to the mattress can the double-layer electric field simultaneously collect coupled sensing signals, thereby distinguishing between a human body and an inanimate object. This prevents the temperature control system from erroneously starting or stopping from the hardware sensing source. Specifically, the wave-shaped flexible circuit board 212 is electrically connected to the signal acquisition auxiliary board 211 at its end. The signal acquisition auxiliary board 211 extends into the main control chamber 312 through a multi-core shielded integrated connecting harness passing through the harness sealed inlet compartment 313. The harness sealed inlet compartment 313 has a built-in waterproof rubber plug to seal the gaps in the harness, preventing moisture from the inside of the mattress from entering the chamber. The integrated harness entering the main control chamber 312 completes electrical connection with the PCB substrate 321. The PCB substrate 321 simultaneously receives two signals: one is the human body contact temperature signal collected by the long strip flexible temperature measuring film, and the other is the dual-layer sensing signal output by the upper metal proximity sensing spring 233 and the lower proximity sensing metal grid 222. At the same time, the acquisition probe 322 extending to the outside of the mattress continuously collects the bedroom environment reference temperature and transmits it to the hardware temperature compensation circuit built into the PCB substrate 321. It should be noted that the hardware temperature compensation circuit, combined with the ambient reference temperature, corrects the temperature drift error caused by the mattress interlayer and heating layer. The corrected accurate temperature value is sent to the dual-signal hardware verification circuit. The dual-signal hardware verification circuit simultaneously judges the validity of the temperature data and whether the dual-layer sensing signals are synchronously up to standard. Only when a valid human body temperature and synchronous sensing signals of the upper and lower layers are detected at the same time, it is determined that there is someone in the mattress, and the corresponding heating or cooling adjustment command is output to the zone temperature control layer 132. The zone temperature control layer 132 adjusts the temperature independently in different zones, and each temperature control zone corresponds one-to-one with the wave flexible circuit board 212 to achieve precise zone temperature control of the mattress. Furthermore, the electromagnetic isolation nonwoven fabric 131 is laid flat between the elastic buffer component 22 and the partition temperature control layer 132. The electromagnetic noise generated by the partition temperature control layer 132 is completely blocked by the electromagnetic isolation nonwoven fabric 131, and will not interfere with the temperature measurement and sensing signal acquisition. The shielding cover 311 is covered on the top of the main control compartment 312. The shielding cover 311 isolates the electromagnetic interference generated by external electrical appliances and mattress heating layer, ensuring the stability of the internal signal operation of PCB substrate 321 and avoiding temperature deviation and human body identification misjudgment caused by electromagnetic noise. It should be noted that when a person leaves the mattress, the heat-conducting protrusion 122 separates from the metal micro-protrusion heat-conducting contact 213, the temperature signal disappears, and at the same time, there is no human coupling signal in the double-layer inductive electric field. The dual-signal hardware verification circuit determines that no one is on the mattress, and then cuts off the temperature adjustment output of the zoned temperature control layer 132, and the mattress stops adjusting the temperature. The entire structure relies on the point-to-point heat conduction structure and the elastic continuous support structure to improve the temperature detection response speed. The composite electric field of the double-layer lifting spring and the bottom grid plate, combined with the hardware dual verification circuit, can reduce the misjudgment problem caused by heavy objects and bedding, and ensure the accuracy of temperature measurement, speed and the accuracy of human body recognition.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0040] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A smart mattress with automatic temperature regulation, characterized in that, include: The main body unit (1) has at least a covering layer (11), a thermally conductive composite component (12) for conducting human body surface temperature, and a support and isolation component (13) for isolating electromagnetic interference and providing support. The temperature sensing unit (2) has at least a temperature acquisition component (21) for acquiring temperature and preprocessing sensing signals, an elastic buffer component (22) for elastically supporting the line and buffering deformation stress, and a proximity composite sensing component (23) for detecting double-layer electric field and distinguishing between human body and heavy object. The main control unit (3) has at least a shielding and protection component (31) for shielding noise and sealing the protection circuit, and a signal acquisition component (32) for summarizing and processing temperature sensing and human body recognition signals. When the top of the covering layer (11) is pressed by a human body lying down, the thermally conductive composite component (12) transmits the human body surface temperature to the temperature acquisition component (21) through the covering layer (11). The elastic buffer component (22) lifts the temperature acquisition component (21) upward to ensure continuous contact. The proximity composite sensing component (23) and the elastic buffer component (22) cooperate to collect the double-layer sensing signal and transmit the temperature signal and the human body sensing signal synchronously to the signal acquisition component (32). The signal acquisition component (32) verifies the signal and outputs the temperature control adjustment command.

2. The intelligent mattress with automatic temperature regulation according to claim 1, characterized in that, The thermally conductive composite component (12) includes: The thermally conductive composite layer (121) is fixedly connected to the bottom of the covering layer (11) at the top, and a number of thermally conductive protrusions (122) are fixedly connected to the bottom in an array. When the thermally conductive composite layer (121) bears the pressure of the human body, the thermally conductive protrusion (122) presses tightly against the temperature measurement and acquisition component (21) downwards and quickly transfers the human body surface temperature to the temperature measurement and acquisition component (21).

3. The intelligent mattress with automatic temperature regulation according to claim 2, characterized in that, The supporting isolation component (13) includes: Electromagnetic isolation nonwoven fabric (131) is placed below the elastic buffer assembly (22) to isolate electromagnetic interference from the lower layer; A zoned temperature control layer (132) is fixedly connected to the bottom of the electromagnetic isolation nonwoven fabric (131) and is zoned to correspond to each sensing area of ​​the mattress; The support filling layer (133) is fixedly connected to the bottom of the zoned temperature control layer (132) to provide basic support for the mattress; Sound-absorbing buffer cotton (134) is fixedly connected to the bottom surface of the support filling layer (133) to absorb the vibration of the support structure; The base anti-slip non-woven fabric (135) is fixedly connected to the bottom of the sound insulation cushioning cotton (134); When the partition temperature control layer (132) receives the temperature collected by the temperature acquisition component (21), it synchronously starts the temperature adjustment operation. The electromagnetic isolation non-woven fabric (131) isolates the electromagnetic noise generated by the operation of the partition temperature control layer (132) to avoid interfering with the upper temperature and the accuracy of human body induction detection.

4. The intelligent mattress with automatic temperature regulation according to claim 3, characterized in that, The temperature measurement and acquisition component (21) includes: A signal acquisition auxiliary board (211) is disposed below the thermally conductive composite layer (121); The wave-shaped flexible circuit board (212) is fixedly connected to the signal output end of the signal acquisition auxiliary board (211) at its side end. The two are electrically connected. A long strip of flexible temperature measuring film is integrally attached to the side, and independent temperature measuring wiring layer and sensing wiring layer are set in the interior. When the long flexible temperature measuring film of the wave flexible circuit board (212) collects the body surface temperature, the temperature and the sensing signal are transmitted independently to the signal acquisition auxiliary board (211) along the layered wiring.

5. The intelligent mattress with automatic temperature regulation according to claim 4, characterized in that, The top of the wave flexible circuit board (212) is fixedly connected with multiple sets of metal micro-protrusion thermally conductive contacts (213) corresponding to the thermally conductive protrusions (122). When the heat-conducting protrusion (122) presses down to fit the metal micro-protrusion heat-conducting contact (213), the temperature signal is transmitted to the signal acquisition auxiliary board (211) via the layered routing of the wave flexible circuit board (212) to complete the pre-processing.

6. The intelligent mattress with automatic temperature regulation according to claim 5, characterized in that, The elastic buffer component (22) includes: A buffer pad (221) is positioned below the temperature acquisition component (21); The proximity sensing metal grid (222) is attached to the inner wall of the buffer pad (221) in a wave-like pattern and undulates synchronously with the wave-like flexible circuit board (212); When the proximity sensing metal grid (222) is subjected to the deformation of the wave flexible circuit board (212), the proximity sensing metal grid (222) deforms synchronously, maintaining the integrity of the double-layer induced electric field without breakage.

7. The intelligent mattress with automatic temperature regulation according to claim 6, characterized in that, The inner wall of the buffer pad (221) has multiple sets of fixing holes (223), and the inner wall of the fixing holes (223) is fixedly connected to an elastic support column (224), and the top of the elastic support column (224) abuts against the crest and trough of the wave flexible circuit board (212); When the buffer pad (221) is compressed and deformed downward by human body pressure, the elastic support column (224) continuously pushes the wave flexible circuit board (212) upward to prevent the circuit from sinking and separating the heat-conducting contact to generate a temperature measurement gap.

8. The intelligent mattress with automatic temperature regulation according to claim 7, characterized in that, The proximity composite sensing component (23) includes: The flexible suspension wire (231) is electrically connected at one end to the sensing output end of the wave flexible circuit board (212), and the other end is fixedly connected to the flexible capacitive sensing electrode (232) and electrically connected to the flexible capacitive sensing electrode (232). The surface of the flexible capacitive sensing electrode (232) is covered with an insulating silicone isolation layer. The metal proximity sensing spring (233) is fixedly connected at one end to the side of the flexible capacitive sensing electrode (232) away from the elastic suspension wire (231), and its surface is fully covered with an insulating silicone protective film. When the metal proximity sensing spring (233) is pressed down and adheres to the human body as the mattress is pressed, it forms a double-layer induction electric field with the proximity sensing metal grid (222) below, which distinguishes the human body, bedding and static heavy objects, and eliminates temperature control misjudgment.

9. The intelligent mattress with automatic temperature regulation according to claim 8, characterized in that, The shielding and protection component (31) includes: The shielding cover (311) is fixedly connected to the bottom of the base anti-slip non-woven fabric (135) at the top; The main control compartment (312) is fixedly connected to the bottom of the shielding cover (311) at the top, and is used to store and protect the signal acquisition components (32). The wire harness sealing inlet compartment (313) is fixedly connected to the bottom of the main control compartment (312) at the top; When the shielding cover (311) closes the main control compartment (312), it can be used to isolate the electromagnetic noise generated by the heating layer inside the mattress and external equipment. The wire harness sealing inlet compartment (313) is used to prevent moisture from entering the compartment and damaging the circuit components.

10. The intelligent mattress with automatic temperature regulation according to claim 9, characterized in that, The signal acquisition component (32) includes: The PCB substrate (321) is fixedly connected to the inner wall of the main control compartment (312) and electrically connected to the signal acquisition auxiliary board (211) through an integrated wire harness. The board has an onboard hardware temperature compensation circuit and a dual-signal hardware verification circuit. A data acquisition probe (322) is fixed through the main control compartment (312) and extends to the outside of the mattress to acquire the ambient reference temperature; When the PCB substrate (321) synchronously receives the temperature signal and the dual-layer proximity sensing signal, the hardware temperature compensation circuit corrects the temperature drift, and the dual-signal hardware verification circuit determines whether there is a person and outputs the corresponding temperature control adjustment command.

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